STROLLER WITH TELESCOPIC AND LOCKING MEMBERS
A stroller for carrying a child or child restraint system, that may comprise an additional storage area or child support system when expanded. The frames include a mechanism whereby the base of the frame is expanded rearward to create a storage space roughly behind the baby seat, and optionally where a top to the storage area folds up from the rear of the frame to complete the storage area. The stroller may include detachable wheels. The stroller may also include handles or push bars that may optionally include mechanisms to assist in expanding or contracting the storage area. The stroller may also be constructed so as to be collapsible for storage.
The present application is a continuation of U.S. patent application Ser. No. 14/194,712, filed Mar. 1, 2014, which is a continuation-in-part of, claims the benefit of and priority from U.S. patent application Ser. No. 14/069,169, filed Oct. 31, 2013 and provisional patent application Ser. No. 61/720,605, entitled Stroller with Expandable Cargo Area, filed Oct. 31, 2012, the disclosures of which are incorporated herein by reference.
FIELD OF INVENTIONThe present invention relates to baby strollers, and more particularly baby strollers which can be expanded or configured in such a way as to provide additional storage capabilities.
BRIEF DESCRIPTION OF THE INVENTIONThe present invention relates to a baby stroller with enhanced capabilities for storage and/or multi-child configurations. The stroller in the present invention is capable of expanding from the rear, thereby creating a cargo space, and, thus, providing the ability to simultaneously transport a passenger such as a child, multiple children, as well as additional cargo, with or without passengers, using simple actuation mechanisms.
SUMMARYBroadly, the present invention provides for a stroller for carrying a user, having a front frame member for supporting a seat. In one embodiment, there is a foldable rear member which folds down to create an additional base member. The foldable rear member can be actuated via a mechanism located at or near the rear frame, the nexus of the rear frame and base member, or the handle. In an alternative embodiment, there is a rear member which can expand by means of telescopically or slide-wise actuating a handle. In a third embodiment, there is an additional support member coupled between the front and rear frame member which expands to form an additional support when the base is expanded. In many embodiments, this cargo area is designed for flexibility, so that its size may be adjusted. Further, in some embodiments, the extendable cargo area includes additional seating capacity for one or more additional children.
BACKGROUNDBaby strollers have been known and used for a number of years to provide a comfortable device to move a baby or small child. The trend with baby strollers has been to reduce the size of the stroller, thus allowing it to be stored more easily. However, with the reduction of size has come the reduction of space that the strollers provide for carrying additional cargo, or multiple children. There remains the need for a baby stroller that can accommodate a large volume of goods and/or a secondary child, while still folding to a compact state.
U.S. Pat. No. 4,878,680 describes a convertible car seat and stroller combination apparatus comprising a padded child's seat having a telescopic U-shaped handle extending upward from behind the back of the seat, and a perimeter frame having four wheels extendible downward. The apparatus is distinguishable from the present invention at least in being limited to one occupant and requiring a perimeter frame for the wheels, as well as lacking an extendable cargo area.
U.S. Pat. No. 4,896,894 describes a stroller car seat apparatus comprising a conventional infant seat having a safety harness, a U-shaped padded front guard bar, a U-shaped telescoping handle in the rear, a pivoting front footrest, and a folding rectangular scissors framework with four wheels. The apparatus is distinguishable from the present invention at least in being limited to one child, requiring an obtrusive lower framework, and lacking an extendable cargo area. [0010] U.S. Pat. No. 5,360,221 describes a baby carriage convertible to a safety car seat with a harness comprising a body assembly including a seat, a back, a footrest, and side plates. A wheel assembly is pivotally mounted on the body assembly and adapted to be folded back. A handle assembly is pivotally mounted on the body assembly and adapted to be rotated into a horizontal position. A locking assembly locks and releases the wheel assembly. When the carriage is converted into a safety seat, the wheel assembly is released and folded back, and the handle assembly is rotated into a horizontal position to be used as an arm rest plate. The apparatus is distinguishable from the present invention at least in being limited to one child, requiring the rotation of the handle assembly to serve as an arm rest, and lacking an extendable cargo area.
U.S. Pat. No. 5,478,096 Chien Ting describes a collapsible multi-use baby carriage having a structure transformable into a dining chair, a safety seat in a car, a cradle, and a bed comprising a seat, a backrest pivotally connected with the seat to change the angle of the backrest, a U-shaped hand rest pivotally connected with the backrest. The structure has a pushing handle, two opposite telescopic side tubes with a windable support plate between the side tubes, and a winding tubular shaft housed in a front tube of the hand rest for pulling out for supporting food. Two front and rear casters are pivotally connected with the bottom of the seat and foldable to the seat bottom. The carriage is distinguishable from the present invention at least in being limited to one child, requiring a windable support plate and two opposite side tubes, and lacking an extendable cargo area.
U.S. Pat. Nos. 6,523,840, 6,669,212 B2 and 6,523,840 B1 (related patents) describe a combined shopping cart stroller, with a frame that includes a primarily horizontal lower frame portion having a forward end and a rearward end; a curved upper frame portion; vertical support extending between the lower frame portion and upper frame portion; a seat mounted to the frame; and a primary cargo area, which is defined as the space generally bounded by the lower frame portion and the upper frame portion rearward of the seating area. The shopping cart stroller is distinguished from the present invention at least in the front frame not extending to a point above the rearward frame when the cargo space is engaged, the manner in which the primary cargo space extends, as well as the fact that the primary cargo space is unable to support the weight of an additional child.
U.S. Pat. No. 7,188,858 B2 describes a collapsible stroller, with a frame having left and right sides, each side comprising: an elongated bottom member; a front leg; a push arm; and a support strut, wherein the front leg, the push arm, and the support strut pivot relative to each other when the stroller moves between the open position and the folded position. The stroller is distinguishable from the current invention at least in being limited to one child, and not having an extendable rear cargo space.
U.K. Patent Application No. GB 2 262 914 A published on Jul. 7, 1993, describes a molded child seat for a vehicle and convertible into a pushchair comprising a supporting frame having two triangular lateral sub-frames interconnected by cross rails. Each sub-frame is equipped with a pair of mounting pins adapted to engage with appropriately shaped and positioned slots on the wheeled pushchair frame. The apparatus is distinguishable from the present invention at least in being limited to one child, requiring a separate supporting frame, and lacking an extendable cargo area.
U.S. Pat. No. 5,544,904 discloses a convertible stroller and shopping cart having a stroller portion and a shopping cart portion. The stroller portion includes a seat secured to a metal frame, and the shopping cart portion comprises a collapsible receptacle. The receptacle can be oriented in two orientations, a stowed orientation adjacent the seat and a deployed orientation over the seat. When the receptacle is deployed, it conforms to the seat, creating a shopping cart from the stroller. The convertible stroller is distinguishable from the present invention at least in lacking the capacity to carry a second child, and in the fact that the extendable cargo area extends to occupy the same volume as the child seat when extended.
U.S. Pat. No. 6,669,212 discloses a cart having a frame member including upright and lateral frame portions. A platform is attached to the lateral frame portion and a stationary seat assembly is secured to the upright frame portion. The stationary seat assembly includes a rearward facing stationary seat, a handle and a safety bar between the seat and the handle. A pivoting mechanism is mounted to the lateral frame portion remote from the upright frame portion. The pivoting mechanism is moveable between a substantially upright position and a retracted position and is located relative to a back portion of the seat. A flexible receptacle is attached to the pivoting mechanism, and moves between an open and collapsed position when the pivoting mechanism is moved between the substantially upright and the retracted position, respectively. The stationary seat and the platform are accessible when the pivoting mechanism is in the substantially upright position or the retracted position. The cart is distinguishable from the present invention at least in that the present invention is fully collapsible, can accommodate a second child, and in having an extendable cargo area which includes an extendable base component.
U.S. Pat. Nos. 6,378,891 and 6,170,854 disclose a convertible stroller and shopping vehicle having a stroller portion and a shopping vehicle portion. The stroller portion includes a seat which is movable from a deployed position to a stowed position. In the deployed position, the invention is used as a stroller. The shopping vehicle portion includes a collapsible receptacle that can be oriented in one of two orientations. In an open orientation, the receptacle creates a shopping cart while in a collapsed orientation the invention can be used to transport bulk materials. The convertible stroller is distinguishable from the present invention at least by lacking the capacity to carry a second child, and in the fact that the extendable cargo area extends to occupy the same volume as the child seat when extended.
U.S. Pat. No. 8,070,180 (which has the same inventor as the present invention) discloses a stroller for carrying a user, and having an expandable storage space located between the child seat and the rearmost frame members. This may include a first and second front frame member for supporting a seat or seats and back support member, a first and second back frame member being connected to the first and second front frame member, an expandable base member, which connects between the first and second front frame member and the first and second back frame member. The expandable frame member may move between an extended and a retracted position to provide a storage area. This invention discloses a stroller with an expandable storage space, however, the volume of the storage space is not adjustable, he invention does not provide mechanisms for actuating the deployment of the extendable cargo area, the invention does not provide a rear handle lock to take the load of additional cargo, the invention does not provide a solution for folding the front seat compactly and independently of the rear frame, the invention does not provide methods for compactly folding the upper expandable basket, and the invention does not provide for additional seating configurations within the expandable storage space.
U.S. Pat. No. 6,676,140 B1 discloses a two-seat collapsible stroller comprising a telescopically collapsing rear section that roughly slides into the front section such that the seat nests onto the front seat in the collapsed position. This stroller differs from the present invention at least in that the second seat is a mandatory part of the invention, and no extendable cargo area exists.
U.S. Pat. No. 8,366,141 discloses a stroller with a collapsible seat for a second child, comprising a complex coupling mechanism that enables the collapse and expansion mechanism. It is distinguishable from the present invention at least in that the stroller's collapse mechanism for the second seat is substantially more complex than in the present invention, and in that it does not provide for the option of an extendable cargo area.
In general, the prior art contains a series of weaknesses which the present invention addresses. First, most prior art lacks the capacity to form an extendable cargo area while simultaneously carrying even a single child: the cargo area extends into the area where the child would sit. Second, those few inventions designed to include a second child both lack the flexibility to also include extendable storage, and include complex or inflexible deployment mechanisms which prevent the strollers from being deployed easily and/or folded into compact form. The present invention, as will be shown, is capable of simultaneously carrying a child and having the cargo area extended/deployed in a way that can handle heavy loads, is easily expanded via actuation mechanisms, is of such a nature that it can also function as additional seating space for additional children. Finally, the present invention is designed to be easily folded into a compact state for travel or storage.
The invention may be understood by reference to the following description taken in conjunction with the accompanying drawings, in which, like reference numerals identify like elements, and in which:
The following description of the preferred embodiment or embodiments is not intended to limit the scope of the invention to the precise form or forms disclosed, but instead is intended to be illustrative of the principles of the invention so that others skilled in the art may follow its teachings.
In the present invention, members 101, 102, and 103 are made out of a single piece of material. In alternative embodiments, member 101, 102, and 103 may be composed of two or more separate components, so as to change the angle of the handle of the stroller, and to enable folding (see
In the present embodiment, frame members 101 and 103 are connected at a substantially acute angle in relation to the front of the frame, so that frame member 103 is leaning substantially towards the front of the stroller (see
In the present embodiment, members 102b and 101b are extended manually via cable member 120, in alternative embodiments, some other mechanical device may be used to automatically extend members 102b and 101b. In yet other alternative embodiments, springs or some other similarly suitable means to store and release potential energy may be attached to member 102b or member 101b to assist the user in engaging the rear base member.
In addition to the foregoing embodiments, the present invention contemplates other specific exemplary alternative embodiments. For example,
In reference now to
Telescopic Tubing with Wheel: A pair of tubes in which one tube 207 is smaller in circumference than the other 209, and in which the smaller tube 207 houses at least one wheel 211, and in which the smaller tube 207 contains a slot 213 for the wheel 211 to make contact with interior of the larger tube 209. In general, the expandable stroller of the present invention comprises two mirror-imaged structural frames connected to each other by cross members. As the cross members may be placed in any suitable position, and since the structural frame members are mirror images, the discussion of the structure of the present invention will focus on a single frame. One skilled in the art will recognize that the description will apply equally to the mirrored frame.
Each pair of telescopic tubes are configured with at least one wheel (in this case the wheels have ball bearings). The ball bearings ease the movement from the retracted to expanded configurations.
Telescopic Tubing Expansion with balls: A pair of tubes in which one tube 207 is smaller in circumference than the other 209, and in which the smaller tube 207 includes at least a set of channels or depressed insets 219 on opposing upper/lower and/or left/right sides, and in which at least two or more balls 215 is set within the channels/insets 219 of the smaller tube 207 and the interior surface 217 of the larger tube 209, such that when the telescopic tubes move axially relative to each other, movement of the tubes is eased by means of the balls. The interface 221 between the larger 209 and smaller 207 tubes (as well as the tube ends), is preferably sealed in a way to prevent infiltration of dirt and debris.
Telescopic Tubing Lock Mechanism: A pair of tubes in which one tube 207 is smaller in circumference than the other 209, and in which the smaller tube 207 slides relative to the larger tube 209, and in which the smaller tube 207 is locked in a fixed position relative to the larger tube 209 by means of a pin or rod 509 engaging into a tab or slot 513 with a spring mechanism holding the pin/rod into a locked position, and in which releasing tension of the spring disengages the pin/rod from the tab/slot, thus allowing the tubes to slide relative to one another, and in which the design may embody two or more locking positions (tabs and/or slots). Releasing tension on the spring and pin/rod is achieved by pulling cables and/or a secondary mechanism which acts upon the spring. In one embodiment, the spring is located within the place for a spring 503 depicted in
The telescopic tubes each have a locking mechanism, which is actuated at the upper frame 202 of the stroller's front seat 204. To actuate the cables/locks, the user slides the secondary lock with their thumb and then squeezes the actuation lever. The actuation lever pulls cables on both the right and left sides to release the locks simultaneously. The lock utilizes a spring that is predisposed to stay locked. The cables release tension on the spring, allowing the lock to release.
The telescopic locking mechanism has three positions in which the pins/bars can lock into place. The initial position (
The locking mechanism can also be used in the other embodiment in which the extendable base is extended by telescopic actuation of the handle (
The illustrations of embodiments described herein are intended to provide a general understanding of the structure of various embodiments, and they are not intended to serve as a complete description of all the elements and features of apparatus and systems that might make use of the structures described herein. Many other embodiments will be apparent to those of skill in the art upon reviewing the above description. Other embodiments may be utilized and derived therefrom, such that structural, materials, and logical substitutions and changes may be made without departing from the scope of this disclosure. Figures are merely representational and may not be drawn to scale. Certain proportions thereof may be exaggerated, while others may be minimized. Accordingly, the specification and drawings are to be regarded in an illustrative rather than a restrictive sense.
Such embodiments of the inventive subject matter may be referred to herein, individually and/or collectively, by the term “invention” merely for convenience and without intending to voluntarily limit the scope of this application to any single invention or inventive concept if more than one is in fact disclosed. Thus, although specific embodiments have been illustrated and described herein, it should be appreciated that any arrangement calculated to achieve the same purpose may be substituted for the specific embodiments shown. This disclosure is intended to cover any and all adaptations or variations of various embodiments. Combinations of the above embodiments, and other embodiments not specifically described herein, will be apparent to those of skill in the art upon reviewing the above description.
The Abstract of the Disclosure is provided to comply with 37 C.F.R. §1.72(b), requiring an abstract that will allow the reader to quickly ascertain the nature of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. In addition, in the foregoing Detailed Description, it can be seen that various features are grouped together in a single embodiment for the purpose of streamlining the disclosure. This method of disclosure is not to be interpreted as reflecting an intention that the claimed embodiments require more features than are expressly recited in each claim. Rather, as the claims reflect, inventive subject matter lies in less than all features of a single disclosed embodiment. Thus the following claims are hereby incorporated into the Detailed Description, with each claim standing on its own as a separate embodiment.
The description has made reference to several exemplary embodiments. It is understood, however, that the words that have been used are words of description and illustration, rather than words of limitation. Changes may be made within the purview of the appended claims, as presently stated and as amended, without departing from the scope and spirit of the disclosure in all its aspects. Although description makes reference to particular means, materials and embodiments, the disclosure is not intended to be limited to the particulars disclosed; rather, the disclosure extends to all functionally equivalent technologies, structures, methods and uses such as are within the scope of the appended claims.
Claims
1. A stowable and deployable stroller for carrying one or more passengers and transporting items, the stroller comprising:
- a front frame member configured to support a seat;
- a rear frame member;
- a selectively extendable base member attached to the front frame member and the rear frame member, said selectively extendable base member further comprising: at least two pairs of tubes, wherein each pair of tubes comprises a first tube and a second tube, the first tube being smaller in circumference than the second tube, and the first tube further comprising at least one slot, said slot housing at least one wheel, said at least one wheel configured to make contact with the second tube, and said slot being located on a longitudinal exterior surface of the first tube; and
- a locking mechanism, wherein the locking mechanism is configured to lock the first tube in a fixed position relative to the second tube when the locking mechanism is engaged, and the locking mechanism allows for movement of at least one of the first tube and the second tube with respect to the other of the first tube and the second tube when the locking mechanism is disengaged, wherein the locking mechanism further comprises at least one protruding element and at least one receiving element and is engaged when the at least one protruding element engages with a respective at least one receiving element, wherein the locking mechanism further comprises a spring located in a place for a spring, said spring configured to retain the protruding element in a locked position, and in which releasing tension on the spring disengages the protruding element from the receiving element, thus allowing the tubes to slide in an axial direction relative to one another, and wherein the locking mechanism further comprises one or more actuators that act upon the spring to release tension.
2. A stowable and deployable stroller for carrying one or more passengers and transporting items, the stroller comprising:
- a front frame member configured to support a seat;
- a rear frame member;
- a selectively extendable base member attached to the front frame member and the rear frame member, said selectively extendable base member further comprising: at least two pairs of tubes, wherein each pair of tubes comprises a first tube and a second tube, the first tube being smaller in circumference than the second tube and wherein one of the first tube or the second tube includes one or more channels on each of opposing upper and lower sides of the tube, and in which at least two or more balls are set within each of the one or more channels and configured to engage with a level interior surface of the other tube; and
- a locking mechanism, wherein the locking mechanism is configured to lock the first tube in a fixed position relative to the second tube when the locking mechanism is engaged, and the locking mechanism allows for movement of at least one of the first tube and the second tube with respect to the other of the first tube and the second tube when the locking mechanism is disengaged, wherein the locking mechanism further comprises at least one protruding element and at least one receiving element and is engaged when the at least one protruding element engages with a respective at least one receiving element, wherein the locking mechanism further comprises a spring located in a place for a spring, said spring configured to hold the protruding element in a locked position, and in which releasing tension on the spring disengages the protruding element from the receiving element, thus allowing the tubes to slide in an axial direction relative to one another.
3. The stroller of claim 2, wherein the locking device further comprises one or more actuators which act upon the spring to release tension.
4. The stroller of claim 1, wherein the one or more actuators pull a flexible element which acts upon the spring to release tension.
5. The stroller of claim 4, wherein the flexible element is routed through at least a portion of the selectively extendable base member.
6. The stroller of claim 4, wherein the flexible element is routed through at least a portion of at least one of the front frame member and the rear frame member.
7. The stroller of claim 6, wherein at least one of the one or more actuators is located on an upper portion of one of the front or rear frame member.
8. The stroller of claim 7, wherein the at least one of the one or more actuators is located at a position above at least a portion of the seat.
9. The stroller of claim 8, wherein the at least one of the one or more actuators is located at the top portion of the front frame member.
10. The stroller of claim 8 wherein expansion of the stroller can be achieved by actuating the at least one of the one or more actuators on the front frame member, followed by pulling the upper portion of the front frame member and at least one of an upper portion of the rear frame member or a rear handle in opposite directions.
11. The stroller of claim 1 wherein the stroller comprises two or more locking positions defined by the at least one receiving element.
12. The stroller of claim 1, wherein the at least one protruding element further comprises at least one of a pin or a rod, and wherein the at least one receiving element further comprises at least one of a slot or a tab.
13. A stowable and deployable stroller for carrying one or more passengers and transporting items, the stroller comprising:
- a front frame member configured to support a seat;
- a rear frame member;
- a selectively extendable base member attached to the front frame member and the rear frame member, said selectively extendable base member further comprising: at least two pairs of tubes, wherein each pair of tubes comprises a first tube and a second tube, the first tube being smaller in circumference than the second tube and wherein one of the first tube or the second tube includes one or more channels on each of opposing upper and lower sides of the tube, and in which at least two or more balls are set within each of the one or more channels and configured to engage with a level interior surface of the other tube; and
- a locking mechanism, wherein the locking mechanism is configured to lock the first tube in a fixed position relative to the second tube when the locking mechanism is engaged, and the locking mechanism allows for movement of at least one of the first tube and the second tube with respect to the other of the first tube and the second tube when the locking mechanism is disengaged, wherein the locking mechanism further comprises at least one protruding element and at least one receiving element and is engaged when the at least one protruding element engages with the respective at least one receiving element, wherein the at least one receiving element is housed against at least one inner wall of the second tube.
14. The stroller of claim 13, wherein the at least one protruding element further comprises at least one of a pin or a rod, and wherein the at least one receiving element further comprises at least one of a slot or a tab.
15. The stroller of claim 13, wherein the at least one protruding element does not protrude through the entire wall of the second tube.
16. The stroller of claim 13, wherein the stroller comprises two or more locking positions defined by the at least one receiving element.
17. The stroller of claim 13, wherein the locking mechanism further comprises a spring located in a place for a spring, said spring configured to hold the protruding element in a locked position, and in which releasing tension on the spring disengages the protruding element from the receiving element, thus allowing the tubes to slide in an axial direction relative to one another.
18. The stroller of claim 13, wherein the receiving element further comprises plates or inserts connected to the second tube.
19. The stroller of claim 13, wherein the at least one receiving element and the second tube comprises a single piece of material.
Type: Application
Filed: Dec 22, 2016
Publication Date: Jun 8, 2017
Inventors: Patrick William Laffan (Berwyn, PA), Leslie Stiba (Pflugerville, TX), Hao Tian (Minneapolis, MN)
Application Number: 15/388,734