WRISTWATCH BAND WITH LONGITUDINAL, TRANSVERSE AND TORSIONAL FLEXIBILITY

Abstract

The present invention relates generally to a wristband, and in particular, to a wristband for a watch, wherein the watchband can flex and pivot about a longitudinal axis extending the length of the watchband and a transverse axis extending across the width of the watchband. The watchband has a plurality of segments spaced along its length, and each segment has a first and second adjacent section extending across the width of the watchband. Each segment can pivot about the transverse axis, and each section can pivot about the longitudinal axis. The watchband can stretch in the longitudinal direction and the transverse direction.

Description

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates generally to a wristband, and in particular, to a wristband for a watch, wherein the watchband can flex and pivot about both longitudinal and transverse axes.

2. Description of the Related Art

Many types of straps and bracelets, and in particular, watchbands designed to hold a timepiece around a user's wrist, are known in the art. However, it is difficult to design a watchband that both resists wear and comfortably conforms to a user's wrist.

A number of watchbands have been developed in attempts to provide a watchband that is either wear resistant or that conforms comfortably to a user's wrist. For example, watchbands have been developed that comprise a flexible material, such as a plastic or leather strap. These watchbands may have improved conformance to a user's wrist, but are subject to wear and may require regular replacement, which can be costly and inconvenient to the owner of the watch. Watchbands have been developed for improved wear-resistance, such as those comprising stronger or rigid materials, such as metal. However, these rigid designs may require complex mechanisms such as hinges and springs in order for the watchband to fit around a user's wrist. These mechanisms may also be prone to failure, and are thus also expensive to maintain, repair and replace. Further, metal watchband designs have limited flexibility, and thus may not conform to a user's wrist, and are uncomfortable to wear.

SUMMARY OF THE INVENTION

Embodiments of the wristwatch band of the present invention have several features, no single one of which is solely responsible for their desirable attributes. Without limiting the scope of this invention, its more prominent features will now be discussed briefly. However, not all of the following features are necessary to achieve the advantages of the wristwatch band. Therefore, none of the following features should be viewed as limiting. After considering this discussion, and particularly after reading the section entitled “Detailed Description of the Preferred Embodiments,” one will understand how the features of the preferred embodiments provide advantages over prior art.

There is provided in accordance with one aspect of the present invention, a band having longitudinal, transverse and torsional flexibility. The band may be worn on a wrist or ankle of a wearer, and may support a watch or other device. The band comprises a plurality of segments extending in a loop for encircling the wrist. A first segment extends at least partially across a width of the band, and comprises a first section and a second section. The first and second sections are separated by a longitudinal flexible joint.

A second segment is connected to the first segment, the first and second segments aligned along a longitudinal axis of the band. The second segment is flexible about a transverse axis relative to the first segment.

The second segment may comprise first and second side-by-side sections. The sections are separated by a longitudinally extending flexible joint. The band comprises a plurality of segments flexibly connected end to end along the length of the band. This results in a plurality of transverse flex lines, allowing the band to be flexed into a circular configuration such as for wearing on a wrist. The band may also be flexed about at least one longitudinal flex line, extending circumferentially around the wrist.

There is provided in accordance with another aspect of the present invention, a method of enabling a band to conform to noncylindrical anatomy, such as a wrist at the junction with the hand.

The band comprises at least one longitudinally extending flex line, which, in the as worn orientation, encircles the wrist. The band additionally comprises a plurality of transverse flex lines, which, in the as worn orientation, extend in parallel to the longitudinal axis of the wearer's wrist.

As the band slides in a distal direction with respect to the wearer's arm, a distal row of modular sections in the band can flare radially outwardly in the distal direction, with respect to a proximal row of modular segments, spaced apart around the circumference of the wearer's wrist.

Further features of the present invention will become apparent from the detailed descriptions of preferred embodiments which follows, when considered together with the attached drawings and claims.

BRIEF DESCRIPTION OF THE DRAWINGS

The appended drawings are schematic, not necessarily drawn to scale, and are meant to illustrate and not to limit embodiments of the invention.

FIG. 1 illustrates a schematic partial side cross-sectional view of a conventional watchband.

FIGS. 2 and 3 are schematic top and cross-sectional side views, respectively, of a watchband having certain features of the present invention.

FIG. 4 is a schematic partial cross-sectional view of an embodiment of the watchband illustrated in FIGS. 2 and 3 viewed from a transverse axis extending across the width of the watchband.

FIG. 4A shows a schematic partial perspective side view of an embodiment of a watchband.

FIG. 5A is a schematic cross-sectional end view of an embodiment of the watchband illustrated in FIGS. 2 and 3 viewed from a longitudinal axis extending along the length of the watchband.

FIG. 5B is a schematic cross-sectional end view of an embodiment of the watchband illustrated in FIG. 5A flexed along the longitudinal axis.

FIG. 6A is a schematic partial side cross-sectional view of a watchband.

FIG. 6B is a schematic partial side cross-sectional view of a watchband.

FIGS. 7A-7B are schematic top perspective and exploded top perspective views, respectively, of an embodiment of a watchband.

FIGS. 7C-7D are schematic bottom perspective and exploded bottom perspective views, respectively, of the watchband illustrated in FIGS. 7A-7B.

FIGS. 7E and 7F are schematic top and bottom perspective views, respectively, of a segment of the watchband shown in FIGS. 7A-7D.

FIGS. 7G-7I are schematic partial side cross-sectional views of a watchband.

FIGS. 8A and 8B are schematic top and cross-sectional end views, respectively, of an embodiment of a watchband.

FIG. 9 is a schematic side cross-sectional perspective end view of a watchband viewed along a longitudinal axis.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

FIG. 1 illustrates a partial side cross-sectional perspective view of a conventional wristband that can be worn around a user's wrist. The wristband can be a watchband 10, configured to hold a timepiece (not shown). Many aspects of the watchband 10 shown in FIG. 1 can be used in various embodiments of the present invention. The watchband 10 can comprise a plurality of segments 20, wherein each segment thereof extends across a width W of the watchband 10. The plurality of segments 20 can comprise a segment 21 that is pivotably, or hingeably, connected along its width to an approximately adjacent segment 22. Segments 21 and 22 can be pivotably connected to each other with a rotatable element 30. Rotatable element 30 allows segment 21 to pivot relative to segment 22 about a transverse axis 40 configured between segments 21 and 22 and extending through the width of watchband 10. In the illustrated embodiment, transverse axis 40 can extend through the center of rotation of the rotatable element 30. Rotatable element 30 can comprise any type of element that hingeably connects segment 21 to segment 22, such as a plurality of alternating apertured tabs or knuckles, pivotably held together by a hinge pin as is known in the art. Here, for exemplary purposes, element 30 is illustrated as a generic hinge 30. Segments 20 and hinges 30 can comprise many different materials, although in conventional watchband designs, segments 20 and hinges 30 typically comprise a rigid material, such as a metal.

The hinge 30 can be configured between each segment in the watchband 10, allowing each segment to pivot relative to an approximately adjacent segment and function similarly to that described above for segments 21 and 22. When the plurality of segments 20 pivot, watchband 10 can at least partially wrap around a central axis 50, forming a channel 60 through which a user can extend his or her wrist. As used herein, a watchband is in a “transversely wrapped” position when it at least partially wraps around a central axis to form a channel through which a user can extend his or her wrist.

Channel 60 can comprise many different geometries, such as an oblong or approximately oval shape. In the illustrated embodiment, channel 60 can be approximately cylindrical, comprising a first opening 70a of a diameter φ₁ configured at its proximal end, and a second opening 70b of a diameter φ₂ configured at its distal end. In a conventional watchband 10, diameter φ₁ is approximately equal to diameter φ₂ because segments 20 and hinges 30 extend substantially across the width of watchband 10 and the rigidity of the materials used for segments 20 and hinges 30 do not allow the watchband 10 to flex or pivot in a direction other than around transverse axis 40. As such, the cross sectional area, shape, and orientation of opening 70a is approximately equal to the cross sectional area, shape, and orientation of opening 70b in a conventional watchband 10 with segments 20 comprising a rigid material. Thus, the adjacent segments 20 in a conventional watchband can only pivot about a single, transverse axis 40 and can only provide a channel 60 of a single, or continuous diameter, cross sectional area, shape, and orientation throughout its axial length, through which a user can extend his or her wrist.

FIGS. 2 and 3 are a schematic top and cross-sectional side view, respectively, of a watch 100, which can include a watchband 110 connected to a timepiece 115. The watchband 110 illustrated in FIGS. 2 and 3 is shown in a substantially unwrapped, or substantially flat, position. As used herein, a watchband is in an “unwrapped” or “flat” position when it does not pivot about a longitudinal or transverse axis. Watchband 110 can comprise a single integrated piece, or, as shown in the illustrated embodiment, watchband 110 can comprise a first portion 110a and a second portion 110b, connected to opposing sides of timepiece 115, as is well known in the art. As used herein, the ends of first portion 110a and second portion 110b that can be connected to timepiece 115 are referred to as the “proximal” ends of portions 110a, 110b, and the ends of first portion 110a and second portion 110b that extend away from timepiece 115 and the proximal ends, are referred to as the “distal” ends of watchband portions 110a, 110b.

First portion 110a can comprise a first connector 112a connected to the distal end of first portion 110a. Second portion 110b can comprise a second connector 112b connected to the distal end of second portion 110b. First connector 112a and second connector 112b can be configured to connect and disconnect the distal ends of first portion 110a and second portion 110b, as is known in the art. For example, first connector 112a can be sized and shaped to receive second connector 112b, or 112b can be sized and shaped to receive first connector 112a, such as with a buckle and corresponding strap, or a pair of interlocking clips or clasps, or other watchband connectors known in the art. First connector 112a and/or second connector 112b can comprise a mechanism that is moveable between a locked and unlocked position, such as a latch, to hold connectors 112a and 112b in a connected and disconnected position, respectively.

Watchband 110 can comprise a plurality of segments 120 that can be spaced along the length of sections 110a and/or 110b, wherein each segment can extend at least partially across the width of watchband 110. Segments 120 can comprise many different shapes, such as square, rectangular or trapezoidal, and can vary in size and shape along the length of watchband 110. Segments 120 can be solid or hollow, and can be flat or have a surface profile or surface structures to give watchband 110 an “armored” appearance. In an embodiment, segments 120 can be an approximately rectangular prism and can be approximately equal size. In a preferred embodiment described further below, segments 120 can vary such as progressively in size and shape along the length of watchband 110 and can comprise a lip, or sidewall extending away from an angled top portion.

The plurality of segments 120 can comprise a first segment 121 that is pivotably connected along its width to a segment 122 configured approximately adjacent to segment 122 relative to the length of watchband 110. Segments 121 and 122 can be pivotably connected to each other to allow segment 121 to pivot relative to segment 122 about a transverse axis 140 that extends through the width of first section 110a. The plurality of segments 120, segments 121 and 122, and transverse axis 140 can function similarly to the manner described above and shown in FIG. 1 for the plurality of segments 20, segments 21 and 22, and transverse axis 40, respectively. Segments 121 and 122 can be pivotably connected to each other with a rotatable element 30 as described above (not shown in FIGS. 2 and 3). In some embodiments, segments 121 and 122 can be pivotably connected to each other with a flexible element 130, as described further below. Note that the function and structures described herein for the segments of any watchband embodiment, such as adjacent segments 121 and 122 of watchband 110, either individually, or in relation to each other as a pair of adjacent segments, are for exemplary purposes, and can be employed for any individual segments or pair of adjacent segments within the plurality of segments for that watchband embodiment.

Segments 120 can comprise any of a variety of different materials, such as a plastic or metal. Segments 120 can vary in material along the length of watchband 110, and each individual segment can comprise more than one material, such as a plated metal. In some embodiments, segment 120 is a precious metal, such as gold or silver. Segments 120 may alternatively comprise stainless steel, titanium, magnesium, alloys such as Nickel-Titanium alloys (Nitinol), carbon fiber composites and other materials known in the art.

Each segment in the plurality of segments 120 can comprise two or more side-by-side sections, with each section extending partially across the width of watchband 110. The adjacent sections can be configured on opposing sides of a longitudinal axis 80 which extends along the length of watchband 110.

In the illustrated embodiment, segment 121 can comprise a first section 121a configured approximately adjacent to a second section 121b, extending across the width of watchband 110. The next segment 122 can comprise a first section 122a configured approximately adjacent to a second section 122b extending across the width of watchband 110.

Sections 121a and 122a can be configured on one side of longitudinal axis 80, with sections 121b and 122b configured on the opposite side of longitudinal axis 80. Although longitudinal axis 80 is shown extending approximately centrally through the length of watchband 110, in some embodiments, longitudinal axis 80 can be laterally offset from the longitudinal midline. In other embodiments, such as that shown in FIG. 9 and described further below, two or more longitudinal axes 80 can extend through the length of watchband 110, and segments 121 and 122 can comprise more than two sections of the same or different size spaced across the width of watchband 110. Although sections 121a and 122a are shown as being approximately the same size as sections 121b and 122b, respectively, in some embodiments, section 121a can be a different size than section 121b, and section 122a can be a different size than section 122b. Note that the function and structures described herein for the sections of any segment within a watchband embodiment, such as adjacent sections 121a, 121b of segments 121 of watchband 110, either individually, or in relation to each other as a pair of adjacent sections, are for exemplary purposes, and can be employed for any individual sections or pair of adjacent sections within the plurality of segments for that watchband embodiment.

Sections 121a and 122a can be pivotably or hingeably connected to segments 121b and 122b, respectively, and can rotate relative to each other about longitudinal axis 80, as will be described further below. Sections 121a and 122a can be connected to sections 121b and 122b, respectively, with a rotatable element 30 as described above in FIG. 1. In some embodiments, the adjacent sections of the segments within watchband 110 are connected to a flexible element so that the adjacent sections can rotate about the longitudinal axis 80, as described presently.

Referring to FIGS. 2 and 3, watchband 110 can comprise a flexible support element 130 connected to the plurality of segments 120. The flexible element 130 can comprise many different shapes and sizes. In some embodiments, the flexible element 130 can comprise a rod, or bar, or a plurality of rods or bars, extending across the width and/or length of watchband 110. In some embodiments, flexible element 130 can be an approximately rectangular strip of flexible material that provides a structure on which segments 120 can be mounted.

Flexible element 130 can be configured to connect portions 110a, 110b of watchband 110 to the timepiece 115. Flexible element 130 can be connected to timepiece 115 in many different ways, such as with a snap or friction fit, clamps, clips, pin and loop or other hinge, adhesive, or any other mechanical, chemical, thermal, or other bonding methods known in the art. In some embodiments, flexible element 130 can be hingeably connected to timepiece 115, so that watchband portions 110a, 110b can rotate relative to timepiece 115, as is known in the art. In a preferred embodiment, flexible element 130 comprises an outer flange 151 that can extend at an angle from the proximal end of flexible element 130. One or more holes 150 can extend through flange 151, and corresponding aligned holes can be configured on each side of timepiece 115. Screws or other fasteners 152 can extend through holes 150 and screw into corresponding holes on the side of timepiece 115 to connect flexible element 130 and either of watchband portions 110a, 110b to timepiece 115.

The flexible element 130 can comprise any of a variety of materials suitably flexible about a transverse axis and a longitudinal axis as described herein. Flexible element 130 can comprise elastomers or other plastics, rubber, or leather, or composite materials such as reinforced fabrics, fibers or rebar. Flexible element 130 can comprise layers or composite materials, such as a rubber bonded with a flexible metal backing or fiber reinforced polymers. In a preferred embodiment, flexible element 130 comprises rubber.

FIG. 4 is an enlarged partial cross-sectional elevational side view of an embodiment of the watchband 110 illustrated in FIGS. 2 and 3 in a transversely wrapped position. In this embodiment, segments 120 can be mounted on a top surface 131 of flexible support 130. Segments 120 can be mounted on flexible support 130 in many different ways, such as with a mechanical fastener, an interference and/or press fit, adhesive, and/or any other mechanical, chemical, thermal, or other bonding methods known in the art. In a preferred embodiment, segments 120 can be mounted to flexible element 130 with screws, as described further below and shown in FIGS. 7B-D and 7G-H. Flexible element 130 can comprise a groove 132 that can extend at least partially across the width of a bottom surface 133 of flexible element 130. The cross section of groove 132 can comprise many different shapes, such as a rectangle, triangle, trapezoid or semicircle. In a preferred embodiment, groove 132 can extend across the entire width of flexible element 130 and can comprise an approximately rectangular cross-sectional shape. Groove 132 can provide an airspace for breathability, or provide a gripping function, when the flexible element 130 is worn against a user's skin, and it can provide increased flexibility of flexible element 130 along each transverse flex plane. The size and shape of groove 132 can be varied to tune the amount of flexibility of flexible support 130.

A transverse axis 140 can extend across the width of flexible element 130 and below a gap 134 configured between adjacent segments 121 and 122. Segments 121 and 122, transverse axis 140, and flexible element 130 can function similarly to segments 21 and 22, transverse axis 40, and hinge 30, respectively, described above and shown in FIG. 1. A transverse axis 140 can be configured for each corresponding pair of adjacent segments in the plurality of segments 120, and is shown in FIG. 4 as being configured only below segments 121 and 122 for simplicity.

In operation, a force can be applied to the ends of flexible element 130 or watchband 110, in the directions shown by arrows 135 and 136. Flexible element 130 can flex in response to the applied force, and segments 121 and 122 can pivot about the transverse axis 140 in response. When segments 121 and 122 pivot about the transverse axis 140, the gap 134 increases or decreases in length. For example, when segments 121 and 122 are moved in the direction shown by arrow 136, the gap 134 can increase in length, and when segments 121 and 122 are moved in the direction shown by arrow 135, the gap 134 can decrease in length. As such, when segments 121 and 122 are moved in the direction shown by arrow 136, they pivot away from each other, and when segments 121 and 122 are moved in the direction shown by arrow 136, they pivot away from each other.

When the force is applied to flexible element 130, the plurality of segments 120 can collectively pivot, as described above for segments 121 and 122, moving watchband 110 about the central axis 50 in the direction of the applied force. In this way, watchband 110 can move from a transversely wrapped position to a flat position, and vice versa. As described above, FIGS. 2 and 3 show watchband 110 in a flat position, and FIG. 4 shows watchband 110 in a transversely wrapped position. In an embodiment shown in FIG. 4, watchband 110 can be moved from a flat position to a transversely wrapped position by moving flexible element 130 about the central axis 50 in the direction shown by arrows 136. Watchband 110 can be moved from a transversely wrapped position to a flat position by moving flexible element 130 about the central axis 50 in the direction shown by arrows 135. When watchband 110 is in a transversely wrapped position, it can form a channel or aperture 160 through which a user can extend his or her wrist. As such, watchband 110 and channel 160 can function similarly to watchband 10 and channel 60, as described above and shown in FIG. 1. In an embodiment shown in FIG. 4, when watchband 110 is in a transversely wrapped position, the bottom surface 133 of flexible element 130 can face and contact the user's wrist, and segments 120 can face outwardly from watchband 110 and the user's wrist. When segments 120 face outwardly from watchband 110, they can protect flexible element 130 from wear, increasing the expected life of flexible element 130.

FIG. 4A shows a schematic perspective side view of an embodiment of the watchband shown in FIG. 4. In this embodiment, the configuration of flexible element 130 and segments 120 on watchband 110 are reversed relative to a user's wrist and timepiece 115 (not shown). In this embodiment, watchband 110 can be moved from a flat position to a transversely wrapped position by moving flexible element 130 about a central axis 50a in the direction shown by arrows 135. In this embodiment, watchband 110 can be moved from a transversely wrapped position to a flat position by moving flexible element 130 about the central axis 50a in the direction shown by arrows 136. When watchband 110 is in a transversely wrapped position, it can form a channel 160a through which a user can extend his or her wrist. In this embodiment, the top surfaces of segments 120 face and contact the user's wrist. In this embodiment, the bottom surface 133 of the flexible element 130 faces outwardly from watchband 110 and the user's wrist. In some embodiments, a watchband 110 can be removably or pivotably connected with timepiece 115 so the user can select between a watchband in which flexible element 130 faces the user's wrist, as shown in FIG. 4, and a watchband in which the segments 120 face the user's wrist, as shown in FIG. 4A. In this way, watchband 110 and/or watchband 210 can be reversible. Note that in some embodiments, a second plurality of segments can be connected to flexible element 130 on a side opposite to the plurality of segments 120, such as that described below and shown in FIG. 9.

FIG. 5A is a schematic cross-sectional end view of an embodiment of the watchband 110 illustrated in FIGS. 2 and 3 viewed from the longitudinal axis 80. FIG. 5A shows watchband 110 in a flat position about longitudinal axis 80. FIG. 5A illustrates an embodiment of segment 121 wherein sections 121a and 121b can comprise a sidewall 124a connected to and extending at an angle from a top section 124b. In an embodiment, sidewall 124a can extend approximately perpendicular to top section 124b. The outer surface of sidewall 124a can extend at an angle from top section 124b within the range of from about 15° to about 90°, often from about 35° to about 55°. See FIGS. 7A-7F.

Top section 124b and sidewall 124a can be solid or hollow, and can be many different shapes, such as a triangular, trapezoidal, or rectangular prism. In an embodiment shown in FIGS. 7A-7F, the top surface of a section 121a increases in thickness towards the central longitudinal axis 80 and the complementary section 121b also increases in thickness towards the longitudinal axis 80 to form a ridge with a longitudinal gap between the two adjacent sections that extends the length of watchband 110. Referring again to FIG. 5A, top section 124b can be positioned on the top surface 131 of flexible element 130, with sidewall 124a extending over and engaging with at least a portion of a sidewall 130a of flexible element 130. In this way, segment 121 can wrap around an edge of flexible element 130. Sidewall 124a can comprise an inner surface 126a that engages with sidewall 130a and a surface 126b configured on the outer surface of 124a. Inner surface 126a and outer surface 126b can be configured parallel to each other or at an angle relative to each other. Section 121b can comprise a sidewall 124a and top section 124b that are configured on the opposing sidewall 130b of flexible element 130. A similar configuration can be employed for the other segments 120, although they are not shown for simplicity.

Top section 124b can comprise a top surface 125a and a bottom surface 125b. The bottom surface 125b of top section 124b can be sized and shaped to releasably or permanently engage with the top surface 131 of flexible element 130. In some embodiments, the bottom surface 125b and the top surface 131 are flat surfaces that engage with each other. In other embodiments, either or both of surfaces 125a and 131 can be roughened, contoured, or provided with complementary interlocking structures to engage with each other. In a preferred embodiment, as illustrated in FIGS. 7B, 7D, 7F, 7G, and 7I, bottom surface 125a can comprise a pin or other element extending away therefrom that can be sized and shaped to be received by a corresponding opening in top surface 131.

FIG. 5B is a schematic cross-sectional side view of an embodiment of the watchband 110 illustrated in FIG. 5A in a longitudinally wrapped, or flexed, position. Referring to both FIGS. 5A and 5B, longitudinal axis 80 can extend through the length of flexible element 130 and below a gap 137 configured between adjacent sections 121a and 121b. In operation, a force can be applied to the sidewalls 130a, 130b of flexible element 130, in the directions shown by arrows 155 and 156. Flexible element 130 can flex in response to the applied force, and segments 121a and 121b can pivot about the longitudinal axis 80 in response. When segments 121a and 121b pivot about the longitudinal axis 80, the gap 137 increases or decreases in the length direction of the watch band. For example, when segments 121a and 121b are moved in the direction shown by arrow 156, the gap 137 increases in length. When segments 121 and 122 are moved in the direction shown by arrow 155, the gap 137 decreases in length. Note that in some embodiments, flexible element 130 can extend into and/or through gaps 134 and 137 as described above, such that any or all of sections 121a, 121b and 122a, 122b, are recessed within flexible element 130 (not shown).

In some embodiments, flexible element 130 can be configured to flex along longitudinal axis 80 and/or transverse axis 140. As used herein, “along longitudinal axis” and “along transverse axis” refers to the direction of longitudinal axis 80 or transverse axis 140 extending through watchband 110, regardless of whether watchband 110 is in a wrapped or flat position.

Referring to FIG. 3, in use, a linear tension force can be applied to watchband 110 along longitudinal axis 80, as shown by direction arrows 165. When a force is applied in the direction shown by arrows 165, flexible element 130 can flex (stretch) in response, along the longitudinal axis 80, increasing the length of gap 134 (and the distance between segments 120), and the overall length of watchband 110.

Referring to FIG. 4, in use, a radially outwardly directed force can be applied to watchband 110 (shown in a transversely wrapped position) in the direction shown by direction arrows 166. When a force is applied in the direction shown by arrows 166, flexible element 130 can flex radially outwardly, or, as defined above, increasing the circumference of the watch band. When flexible element 130 flexes outwardly, the length of gap 134 (and the distance between segments 120) can increase, and the overall length, or as shown here, circumference, of watchband 110 can increase.

Referring to FIG. 5A, in operation, a transverse tension force can be applied to watchband 110 (in a substantially flat position) along transverse axis 140, as shown by direction arrows 167. When a force is applied in the direction shown by arrows 167, flexible element 130 can stretch laterally in response, increasing the width of gap 137 (and the distance between sections 121a and 121b), and the overall width of watchband 110. As such, flexible element 130 can flex or stretch along transverse axis 140.

Referring to FIG. 5B, in operation, a radially outwardly directed force can be applied to watchband 110 (shown in a longitudinally wrapped position) in the direction shown by direction arrows 157. When a radially outwardly directed force is applied in the direction shown by arrows 157, flexible element 130 can flex about longitudinal axis 80 and along transverse axis 140. When flexible element 130 flexes radially outwardly, the length of gap 137 (and the distance between sections 121a, 121b) can increase, and the overall width of watchband 110 can increase.

The flexibility and/or pivotability of flexible element 130 and segments 120, as described above and shown in FIGS. 2-5B, allow watchband 110 to flex, pivot, and twist to conform to many different shapes and sizes, providing increased fit and comfort to the user, some embodiments of which will be discussed below.

FIG. 6A illustrates a partial side cross-sectional view of watchband 110 as it would be configured as worn on a wrist. In this embodiment, watchband 110 can comprise the plurality of segments 120 carried by the flexible support 130. Axes 80 and 140 are not shown in FIG. 6A for simplicity. The watchband 110 is shown in FIG. 6A in a longitudinally wrapped position about a central axis 50, and comprises a central tubular channel 60 and openings 70a and 70b for receiving a wrist therethrough. Referring again to FIG. 6A, openings 70a and 70b comprise a diameter φ₁ and a diameter φ₂, respectively, configured at the proximal end and distal end, respectively, of channel 60. In this embodiment, flexible element 130 can flex along and/or pivot about transverse axis 140 and/or longitudinal axis 80, as described above, and diameter φ₁ can vary relative to diameter φ₂.

In some embodiments, φ₁ can be substantially less than (as shown) or substantially greater than (not shown) diameter φ₂. In another embodiment, diameter φ₁ can be substantially equal to (not shown) diameter φ₂, similar to FIG. 1. In some embodiments, flexible element 130 can flex along and/or pivot about transverse axis 140 and/or longitudinal axis 80, and the cross sectional area and/or shape of opening 70a can be substantially different from, or substantially the same as, the cross sectional area and/or shape of opening 70b. In an embodiment, opening 70a can comprise a roughly circular cross sectional shape, and opening 70b can comprise a roughly elliptical cross sectional shape (not shown). In another embodiment, opening 70a and opening 70b can be approximately the same circular cross sectional shapes, but with different diameters φ₁ and φ₂, such that channel 60 and flexible element 130 can form an approximately frustroconical shape. Thus, channel 60 can vary in cross sectional shape, diameter, and/or area along the width of watchband 110. As such, watchband 110 can vary in cross sectional shape, diameter, and/or area across its width while in a wrapped position. This flexibility in cross sectional shape and/or area of openings 70a and 70b, and channel 60, can provide increased comfort and fit to a user of watchband 110.

FIG. 6B illustrates a partial side cross-sectional view of watchband 110. In this embodiment, watchband 110 can comprise the plurality of segments 120, the flexible element 130, the central axis 50, the channel 60, and openings 70a and 70b of diameter φ₁ and φ₂, respectively, as described above and shown in FIG. 6A. The embodiment shown in FIG. 6B can further comprises sections 121a and 121b, and gap 137 configured therebetween, as described above and shown in FIGS. 2-3 and 5A-5B.

Referring again to FIG. 6B, the plurality of segments can comprise a segment 123, wherein segment 123 can comprise side by side sections 123a and 123b, with a gap 138 configured therebetween. Sections 123a and 123b and gap 138 function similarly to sections 122a and 122b and gap 137, respectively, and are positioned on an opposing side of channel 60 therefrom. An opening 70c of diameter φ₃ can be configured to be substantially aligned with gaps 137, 138 and to extend across channel 60. Channel 60 can comprise channel sections 60a and 60b configured on either side of opening 70c.

In this embodiment, flexible element 130 can flex along and/or pivot about transverse axis 140 and/or longitudinal axis 80, as described above. When flexible element 130 flexes along and/or pivots about transverse axis 140 and/or longitudinal axis 80, diameters φ₁, φ₂, and φ₃ can vary relative to each other. In some embodiments, φ₁ can be substantially less than (as shown) or substantially greater than (not shown) or substantially equal to (not shown) diameter φ₂, which can be substantially less than (not shown) or substantially greater than (as shown) or substantially equal to (not shown) φ₃. In some embodiments, flexible element 130 can flex along and/or pivot about transverse axis 140 and/or longitudinal axis 80 to vary the cross sectional area and/or shape of openings 70a, 70b and 70c and channels 60a and 60b relative to each other. In an embodiment, openings 70a and 70b can comprise an approximately circular cross sectional shape with approximately the same cross sectional area, and opening 70c can comprise an elliptical shape with a substantially different cross sectional area. As such, channels 60a and 60b can transition in shape and/or area along the width of watchband 110.

In the illustrated embodiment, openings 70a, 70b, and 70c can comprise an approximately circular cross sectional shape, wherein diameters φ₁ and φ₃ are approximately equal and φ₂ is substantially greater than φ₃ and φ₁. This might happen as the watch slides down the wearer's arm and rides up onto the wearer's hand. Channel section 60a can comprise an approximately cylindrical shape, and channel section 60b can comprise an approximately frustroconical shape. As such, channel 60 can comprise a channel section 60a that is approximately the same cross sectional shape and area along its width, and a channel section 60b that can vary in cross sectional shape, diameter, and/or area along its width. Thus, watchband 110 can comprise two or more channel sections that vary independently of each other in cross sectional shape, diameter, and/or area across the width of watchband 110 while in a wrapped position. This flexibility in cross sectional shape and/or area of openings 70a and 70b, and channel 60, can provide increased comfort and fit to a user of watchband 110.

FIGS. 7A-7B show a schematic top perspective and an exploded top perspective view of an embodiment of a watchband 210. FIGS. 7C-7D show a schematic bottom perspective and an exploded bottom perspective view of the watchband illustrated in FIGS. 7A-7B. FIGS. 7E and 7F show a schematic top and bottom perspective view of a segment 221 of the watchband 210 shown in FIGS. 7A-7D. Watchband 210 can function similarly to the embodiments of watchband 110a and/or watchband 110b described above and shown in FIGS. 2-6B. The elements in FIGS. 7A-7F that are numbered the same as the elements in FIGS. 1-6B function similarly as described above.

Referring to FIGS. 7A-7D, Watchband 210 comprises a connector 212 that can function similarly to connectors 112a and/or 112b described above. In the illustrated embodiment, flexible element 130 comprises openings 281 extending into an upper surface 131 and the lower surface 133 of flexible element 130. Openings 281 can comprise many different shapes, such as rectangular or round holes that extend partially into the upper and lower surfaces 131, 133, with or without extending therethrough. In a preferred embodiment, opening 281 can comprise an approximately circular hole that extends through flexible element 130. In an even more preferred embodiment, opening 281 can further comprise a counterbore and/or countersink extending into surfaces 131, 133. Opening 281 can be sized and shaped to receive a projection 284 that protrudes outwardly from the lower surface 125b of any of the sections of segments 120, such as sections 121a-122b, as shown in FIGS. 7E and 7F.

Referring to FIGS. 7B, 7D and 7F, projection 284 can be configured to be received by corresponding opening 281, and to connect segments 120 to flexible element 130 using any of the methods described above, such as a press fit into opening 281 or with adhesives, etc. In an embodiment, projection 284 can comprise a non-circular shape that fits into a corresponding non-circular opening 281, to prevent rotation of each section of segments 120 relative to flexible element 130 about an axis 260 extending orthogonal to and through the thickness of flexible element 130, and longitudinally through pin 284. In a preferred embodiment, projection 284 can comprise a hollow cylinder comprising female threads 285 extending around its inner diameter. The threads 285 can be sized and shaped to receive a screw 282 that can extend through the lower surface 133 and opening 281 of flexible element 130. In a preferred embodiment, at least one and optionally two pins 284 and openings 281 are employed on each section of segments 120 to prevent rotation of the section relative to flexible element 130. As such, screw 282 can mechanically attach segments 120 to flexible element 131.

Other embodiments can be employed to mechanically attach sections of segments 120, such as section 121a, to flexible element 131. In an embodiment shown in FIG. 7G, pin 284 can comprise an approximately cylindrical shape with threads 284a on its outer surface that can correspond to matching threads 281a on the inner diameter of opening 281. In another embodiment shown in FIG. 7H, an opening 286 can extend through the top section 124b of section 121a, and screw 282 can extend through opening 286 and be received by threads 281a configured on the inner diameter of opening 281. In another embodiment shown in FIG. 7I, a head 287 can be connected to the distal end of pin 284. Head 287 can be a width greater than opening 281 and pin 284, but small enough that it can be inserted into opening 281. In operation, a force is applied to section 121a in the direction shown by arrow 288, and head 284 engages with opening 281. Opening 281 increases in width in response to the force of head 287, and head 287 can extend through opening 281 and the opposite side of flexible element 131. When head 287 extends through the opposite side of flexible element 131, the width of opening 281 returns to its quiescient state, preventing head 287 from moving in the direction opposite to arrow 288, and connecting section 121a to flexible element 131.

In any of the embodiments described above for FIGS. 7A-7G, openings 281 and/or 286 can be configured with or without a countersink and/or counterbore, so that the head of screws 282 can extend above or below the surfaces of segments 120 and/or flexible element 130. Allowing screws 282 to extend below the surface of segments 120 and/or flexible element 130 can provide a smoother, more comfortable fit, when segment 120 or flexible element 130 is worn against the user's skin, as described above. Allowing screws to extend above the surface of segments 120 and/or flexible element 130 can improve the engagement of watchbands 110 or 210 with the user's skin, when segment 120 or flexible element 130 is worn against the user's skin.

FIGS. 8A and 8B comprise a schematic top view and side view of an embodiment of a watchband 310. The elements in FIGS. 8A and 8B that are numbered the same as the elements in FIGS. 1-7H function similarly as described above. Watchband 310 can comprise a plurality of segments 120 and two or more flexible elements 130 that can function relative to each other, and relative to axes 80 and 140, similarly to the elastic support of watchbands 110 and 120 described above.

In this embodiment, the plurality of segments comprises segments 321 and 322, configured adjacent to each other, similarly to segments 121 and 122 described above. Segments 321 and 322 can comprise sections 321a, 321b, and 322a, 322b, respectively, configured adjacent to each other, across the midline of the band, similarly to adjacent sections 121a, 121b, and 122a, 122b, respectively, described above. Flexible element 130 can comprise one or two or more longitudinal sections 130a connecting the plurality of segments 120 along the length of watchband 310. Longitudinal section 130a can allow the adjacent segments, such as segments 321 and 322, to pivot about transverse axis 140 and flex along longitudinal axis 80 as described above. Longitudinal section 130a can comprise any of a variety of flexible and preferably elastic materials such as the materials described above for flexible element 130.

Longitudinal connector section 130a can pass through and/or attach to the plurality of segments 120 along the length of watchband 310 in many different ways, such as by bonding a lower surface of section 130a to an upwardly facing surface of segments 120, or vice versa. In another embodiment, longitudinal section 130a can comprise a plurality of individual pieces, with each piece connected to and extending between each adjacent segment within the plurality of segments 120. In a preferred embodiment, two longitudinal sections 130a extend through a first and second channel that extends through each of segments 120, such as channels 301, as shown extending through sections 321a and 321b (See FIG. 8B).

The flexible support matrix may additionally comprise a plurality of transverse sections 130b connecting each of the adjacent sections of the plurality of segments 120, such as adjacent sections 321a and 321b, or sections 322a and 322b, along the width of watchband 310. Transverse section 130b can allow the adjacent sections, to pivot about longitudinal axis 80 and flex along longitudinal axis 80 as described above. Transverse section 130b can comprise any of the materials described above for flexible element 130. Transverse section 130b can connect the two rows of sections of the plurality of segments 120 along the length of watchband 310 in many different ways, such as by connecting a lower surface of transverse section 130b to an upwardly facing surface of sections 321a (and others), or vice versa. In another embodiment, transverse section 130b can comprise a plurality of individual pieces, with each piece connected to and extending between each adjacent section within the plurality of segments 120. In a preferred embodiment, each transverse section 130b extends through a channel that extends through at least a portion of each of segments 120, such as channel 302, as shown extending through sections 321a and 321b (See FIG. 8B).

FIG. 9 shows a schematic side cross-sectional perspective view of an embodiment of a watchband 410. Watchband 410 can function similarly to watchbands 110, 210, and 3 10, described above. Watchband 410 can comprise a first plurality of segments 120 connected to a first surface of flexible element 130, functioning similarly to that described above. The first plurality of segments 120 can comprise segments 421 and 422, comprising sections 421a, 421b and sections 422a, 422b, that function similarly to segments 121, 122 and sections 121a, 121b and sections 122a, 122b described above. In this embodiment, each segment, such as illustrated segments 421 and 422, can comprise a third row of sections, such as illustrated sections 421c and 422c, extending across the width of watchband 410, configured to pivot about a second longitudinal axis 80. Watchband 410 can also comprise a second plurality of segments 420, such as segments 423 and 424, connected to the surface of flexible element 130 opposite to segments 120. The second plurality of segments 420 can function similarly to the first plurality of segments 120, but will pivot in the opposite direction about axis 140 and axis 80. Segments 423 and 424, and the other segments in the plurality of segments 420, can comprise sections extending across the width of watchband 410, such as sections 423a-c and 424a-c. Sections 423a-c and 424a-c function similarly to sections 421a-c and 422a-c, but pivot in the opposite direction about axes 80 than sections 422a-c and 421a-c, respectively.

Although the invention has been disclosed in the context of certain embodiments and examples, it will be understood by those skilled in the art that the invention extends beyond the specifically disclosed embodiments to other alternative embodiments and/or uses and obvious modifications and equivalents thereof Accordingly, the invention is not intended to be limited by the specific disclosures of preferred embodiments herein.

Claims

1. A band for a wristwatch, comprising:

a first segment extending at least partially across a width of the band, the first segment comprising a first section and a second section, wherein the first section is adjacent to the second section, the first and second sections spaced across the width of the band;

a second segment extending at least partially across the width of the band, the second segment configured approximately adjacent to the first segment along a length of the band, wherein the second segment is pivotably connected to the first segment, wherein the first and second segments can pivot relative to the other of the first and second segments about a transverse axis extending through the width of the band; and

a first flexible element extending at least partially across the width of the band, the first and second segments connected to the flexible element, wherein the first and second sections pivot relative to the other of the first and second sections about a longitudinal axis extending through the length of the band.

2. The band of claim 1, wherein the flexible element is configured to flex along the transverse axis.

3. The band of claim 1, wherein the second segment is pivotably connected to the first segment with the flexible element.

4. The band of claim 1, wherein the first and second sections are substantially the same size and/or shape.

5. The band of claim 1, wherein the first segment can wrap around the flexible element.

6. The band of claim 1, further comprising a channel extending through the first segment, wherein the flexible element extends into the channel.

7. The band of claim 1, wherein the flexible element comprises a longitudinal section, the longitudinal section extending at least partially along the length of the band, the first and second segments connected to the longitudinal section.

8. The band of claim 1, wherein the first and second segments are connected to a first side of the flexible element, further comprising a third segment connected to an opposing side of the flexible element, the third segment configured to pivot in the opposite direction as the first and second segments.

9. The band of claim 1, wherein the first segment comprises a bottom surface, further comprising a pin extending away from the bottom surface, wherein the pin engages with an opening on a surface of the flexible element.

10. The band of claim 1, wherein the band is reversible relative to the wristwatch.

11. The band of claim 1, wherein the first section comprises a sidewall and a top section, the sidewall extending away from the top section at an angle.

12. The band of claim 1, wherein the flexible element is configured to flex along the longitudinal and/or the transverse axis.

13. The band of claim 2, wherein the watchband is configured to be wrapped about a central axis to form a channel, the channel comprising a first and second opening at its opposed ends, wherein the cross-sectional shape and/or area, and/or width of the first opening is substantially different from the cross-sectional shape and/or area, and/or width of the second opening.

14. The band of claim 13, wherein the channel comprises a frustro-conical shape.

15. The band of claim 12, further comprising a third opening extending across a middle section of the channel, wherein the channel comprises a first channel section and a second channel section, wherein the cross-sectional shape and/or area and/or width of the third opening is substantially different from the cross-sectional shape and/or area, and/or width of at least the first or second opening.

16. A band for a wristwatch, comprising:

a first segment extending at least partially across a width of the band, the first segment comprising a first section and a second section, wherein the first section is configured to be approximately adjacent to the second section, the first and second sections spaced across the width of the band;

a second segment extending at least partially across the width of the band, the second segment comprising a third section configured approximately adjacent to the first segment and spaced along a length of the band, wherein the first and second segments can pivot relative to the other of the first and second segments about a transverse axis extending through the width of the band;

a first flexible element extending at least partially across the width of the band, the first and second sections connected to the flexible element, wherein the flexible element can flex along the transverse axis.