Overshoes with raised inner surface portions and slip resistant sole portions for use on primary footwear
An overshoe for disposition over a primary footwear. The overshoe includes an upper and a sole. The sole has a ground engaging bottom surface and plural projections extending upward into or adjacent the hollow interior of the upper. The ridges support a portion of the sole of the primary footwear to provide cushioning and shock absorption. The sole may be a bi-component member having two layers and plural spikes with portions interposed therebetween. Each spike includes a free end which is arranged to be exposed at the ground-engaging bottom surface.
1. Field of the Invention
This invention relates generally to footwear and more particularly to overshoes (as defined below) for use on primary footwear to provide good traction and wearing comfort.
2. Description of Related Art
Various overshoes, sandals, slings and other style attachment devices have been disclosed in the patent literature for mounting over the sole of a primary footwear, e.g., a boot or shoe, to provide enhanced traction or resistance to slippage. Such attachments may be in the form of galosh pull-over devices, like those disclosed in our U.S. Pat. Nos. 4,160,331 and 5,396,717, or sandal type devices, like those disclosed in our U.S. Pat. Nos. 5,359,789, 5,463,823, 5,533,277, 5,659,978 and 5,813,143, or other kinds of attachment devices like those disclosed in our U.S. Pat. Nos. 5,689,901, 5,794,360, 5,921,005, 5,966,840 and 6,154,982. The disclosures of all of those foregoing prior patents are specifically incorporated by reference herein.
Other non-slip attachments for footwear have been disclosed in the patent literature, e.g., U.S. Pat. No. 1,032,600 (Grout); U.S. Pat. No. 2,361,972 (Smith); U.S. Pat. No. 3,214,850 (McNair); U.S. Pat. No. 3,516,181 (Jordan); U.S. Pat. No. 4,344,238 (Peyser); U.S. Pat. No. 4,353,172 (Bryant); U.S. Pat. No. 4,525,939 (McNeil et al.); and U.S. Pat. No. 4,910,883 (Zock, Jr.). The 32 North Corporation of Kennebunk Me. sells an ice gripping sandal for use on primary footwear under the trademark STABILICERS. That sandal includes a sole which is arranged to be secured to the bottom surface of the sole of a primary boot or shoe by means of two strapping assemblies, namely, a front or toe strapping assembly and a rear or heel strapping assembly.
Still other prior art attachment devices for footwear are shown in U.S. Pat. No. 1,716,790 (Mitchell), U.S. Pat. No. 1,747,603 (Ruth), U.S. Pat. No. 2,076,316 (Beals, Jr.), U.S. Pat. No. 1,877,080 (Teshima), U.S. Pat. No. 2,076,316 (Beals, Jr.), U.S. Pat. No. 2,617,209 (Jackson), U.S. Pat. No. 2,628,437 (Forsythe), U.S. Pat. No. 2,801,478 (Gilbert), U.S. Pat. No. 3,012,343 (Dinkel), U.S. Pat. No. 3,040,451 (Helkemeyer), U.S. Pat. No. 3,609,888 (Rickman), U.S. Pat. No. 4,302,890 (Covell et al.), U.S. Pat. No. 4,817,302 (Saltsman), U.S. Pat. No. 4,727,662 (Ilon), U.S. Pat. No. 4,807,372 (McCall), U.S. Pat. No. 4,869,000 (York), U.S. Pat. No. 4,920,664 (McGregor et al.), U.S. Pat. No. 4,924,608 (Mongonye), U.S. Pat. No. 5,485,687 (Rohde), U.S. Pat. No. 5,341,582 (Liautand), U.S. Pat. No. 5,950,334 (Gehardt), and U.S. Des. Pat. No. 131,318 (Levin).
Various sling-type, anti-slip footwear attachment devices have been and are commercially available for mounting on a boot or shoe, to provide resistance to slippage on ice or snow or other slick surfaces. One such sling type attachment device for footwear is sold under the trademark SPIKY and is in the form of a resilient rubber sling having plural metal spikes or cleats on the bottom thereof and which are arranged to dig into ice when the attachment is worn over an article of primary footwear, e.g., a boot or shoe. Prior art sling-type devices can be classified in two basic varieties or types, namely, the “full sole” and the “half sole” types. The full sole sling-type device is typically molded as a one-piece unit of a stretchable material, e.g., rubber, and includes a sole portion extending under both the forefoot and heel regions of the primary footwear and with toe straps or loops and heel counter straps or loops for disposition on respective portions of the upper of the primary footwear to hold the device in place. The sole may or may not include an arch portion. Spikes or cleats of metal or some other hard material are typically provided projecting downward from portions of the device's sole in the toe/forefoot region and in the heel region. The full sole attachment device offers significant protection from slippage, due to the use of the ice/snow engaging spikes in both the toe/forefoot and heel regions of the device. The half sole footwear attachment device is similar to the full sole type, except that it doesn't include any sole portion at the location of the heel of the primary footwear. Instead the portion of the half sole device which is located in the heel region of the primary footwear includes an opening or hole through which the heel of the primary footwear extends when the device is in place thereon.
Attachment devices in the form of overshoes formed of a fabric material, e.g., nylon, upper and having a sole formed of rubber or some other somewhat flexible or resilient material are also commercially available.
Footwear attachment devices, some of which are constructed under one or more of our above identified patents, are commercially available from Jordan David Safety of Horsham, Pa. under one or more of the following trademarks: 21ST CENTURY, GRIPS®, GRIP X, ICE GRIPS, GRIPS LITE, GRIPPERS FOR STRIPPERS, ALTRAGRIPS, SPIDERZ, and SPIDERZ OVER THE SHOE.
All of the foregoing prior art overshoes, sandals, sling-type devices and other types of devices for attachment to primary footwear and which include at least one portion that is arranged to engage a portion of the upper of the primary footwear to hold the device in place over the sole of the primary footwear will be hereinafter collectively referred to as being “overshoes”. The subject invention is directed to all such types of overshoes and the term overshoe as used in the claims is to be given such an expansive interpretation.
While prior overshoes may be suitable for their intended purposes a need nevertheless exists for overshoes that provide enhanced shock absorption, wearing comfort, good traction and resistance to slippage, and which can be manufactured easily and economically. The overshoes of the subject invention address those needs.
BRIEF SUMMARY OF THE INVENTIONIn accordance with one aspect of this invention there is provided an overshoe for disposition over a primary footwear. The primary footwear has an upper, a sole and a heel. The upper has a toe portion and a heel portion. The overshoe comprises an upper portion and a sole portion. The upper portion has a hollow interior adapted for receipt of at least a portion of the primary footwear. The sole portion of the overshoe comprises a ground engaging bottom surface and support means in the form of at least one projection extending upward adjacent the hollow interior of the upper portion and which is adapted to support a portion of the sole of the primary footwear. The sole portion of the overshoe is in the form of a solid mass of resilient material located between said ground engaging bottom surface and the at least one projection to provide shock absorption for the primary footwear.
In accordance with another aspect of this invention the overshoe comprises an upper portion and a sole portion. The upper portion has a hollow interior for receipt of at least a portion the primary footwear. The sole portion comprises a bi-component member and at least one spike. The bi-component member comprises a preformed upper layer formed of a resilient material and a preformed lower layer formed of a resilient material of substantially the same durometer as the upper layer. The at least one spike has a free end. The lower layer of the sole portion has an upper surface, a ground-engaging bottom surface and at least one cavity. The at least one cavity is open to the upper surface and the ground-engaging bottom surface and is arranged to receive therein the at least one spike, whereupon the free end of the at least one spike is exposed at the ground-engaging bottom surface. The upper layer is fixedly secured to the lower layer, whereupon the at least one spike is held securely in place within the at least one cavity.
Additional advantages will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the aspects described below. The advantages described below will be realized and attained by means of the elements and combinations particularly pointed out in the appended claims. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive.
BRIEF DESCRIPTION OF SEVERAL VIEWS OF THE DRAWING
Referring now to the various figures of the drawing wherein like reference characters refer to like parts, there is shown at 20 in
Before describing further details of the overshoe, including features of its upper surface 30, a brief description of the construction of the primary footwear is in order. Thus, as can be seen in
As best seen in
As mentioned above the inner surface 30 of the sole portion 24 forms the bottom of the hollow interior 26 of the overshoe. In accordance with one aspect of this invention the inner surface 30 of the sole portion includes support means 34 to provide cushioning and shock absorption for the wearer. The support means 34 will be described in detail hereinafter. Suffice it for now to state that the support means 34 is in the form of at least one projection extending upward contiguous the hollow interior 26 of the upper portion 22. In the exemplary embodiment shown in
The at least one projection of the support means 34 is adapted to support at least a portion of the ground-engaging surface of the primary footwear thereon to provide cushioning and shock absorption for the primary footwear. To that end the sole portion of the overshoe at the location of the at least one projection is in the form of a solid mass or body of resilient material located between the ground engaging bottom surface of the overshoe and the top surface of the at least one projection. This mass of resilient material provides the cushioning and shock absorption functions for the overshoe.
In the exemplary embodiment of
It must be pointed out at this juncture that the number, size, shape, orientation and location of the projection(s) forming the support means of this invention, need not be like that shown and described above. Thus, one or more differently shaped, sized, and oriented projections can be located at any desired position in any sole region of the overshoe where cushioning and shock absorption is desired.
In
In
In
In
As before, in the interest of brevity the common components and features of the overshoe 400 will be given the same reference numbers as those components/features of overshoe 20, 100, 200 and 300. Moreover, the structure and operation of the common components/features will not be reiterated. The overshoe 400 includes outsole sections 402A and 402B, each of which includes plural spikes 404 therein. The spikes are constructed of any suitable material or combinations of materials, e.g., tungsten carbide, titanium, stainless steel, hard plastics, etc., depending upon the application for the overshoe.
The outsole sections 402A and 402B are secured, e.g., glued, to the bottom surfaces 32A and 32C, respectively, of the sole portions 24A and 24C, respectively, to form a bi-component sole with portions of the spikes interposed between the confronting layers. In particular, the outsole sections 402A and 402B each include a plurality of openings 406 (
To assemble the overshoe 400, a the spikes 404 are located in respective openings 406 of the outsole sections 402A and 402B so that spike heads 404C are within respective opening mouths 406B, and with respective spike bodies 404A extending through respective bores 406A. The top surface of each of the heads of the spikes are coplanar with the top surface of their associate outsole sections 402A or 402B and with surfaces 32A and 32C.
Once the spikes and their respective outsoles are assembled, the outsole section 402A is then fixedly secured, e.g., glued, welded, sewn, etc., to the undersurface 32A of the sole portion 24A of the overshoe 400. In a similar manner the outsole section 402B fixedly secured, e.g., glued, welded, sewn, etc. to the undersurface 32B of the sole portion 24C of the overshoe.
It should be pointed out at this juncture that openings 406 in the outsole sections 402A and 402B need not be shaped to include mouth portions 406B for receipt of the spike heads 404C. Instead, each of the openings 406 can be in the form of a constant internal diameter bore 406A extending the full thickness of the outsole section in which it is located. Moreover, the top surface of that outsole section will be planar. In such an arrangement the head or cap 404C of the spike will overlie the contiguous top surface of the outsole section surrounding the bore 406A. The natural resiliency of the material making up the outsole section 404A and the material making up the sole portion 24A will compress slightly to accommodate the spike heads at the interface of the sections 404A and 24A when those sections are adhesively or otherwise fixedly secured together. In a similar manner the natural resiliency of the material making up the outsole section 404B and the material making up the sole portion 24B will compress slightly to accommodate the spike heads at the interface of the sections 404B and 24B when those sections are adhesively or otherwise fixedly secured together. This alternative construction is less expensive to produce, since it does not require the formation of specially shaped openings, i.e., openings with recesses to accommodate the heads of the spikes.
As will be appreciated by those skilled in the art, when the outsole sections with their associated spikes are secured in place to their respective portions 24A and 24C of the overshoe, each forms what can be referred to as a bi-component sole, i.e., a sole made up of two layers, namely, the layer 24A and 24C and the outsole portion 402A and 402C, respectively, secured thereto. The interposition of the enlarged heads 404C of each of the spikes at the interface of the layers making up the bi-component sole effectively traps the associate spikes in place, thereby preventing them from accidentally coming out of the overshoe.
It should be pointed out at this juncture that the lower free end 408B of each or selected ones of the spikes 408 of the overshoe may extend beyond the ground engaging surface of the outsole, such as shown in
It should also be pointed out that the spikes 404 can be located in different positions on the overshoe 400 and at different spacings. Thus, as can be seen in
In
The assembly 504B is similar in construction to assembly 504A and basically comprises a generally planar common base member 506 and a plurality of projections 508 extending outward from the base member. The inner surface of the outsole section 502B also includes a cavity which is shaped and sized to accommodate the common base member of the assembly 504B. Moreover, the outsole section 502B also includes plural apertures open to the ground engaging bottom surface of the outsole and also in communication with the cavity therein. The apertures in the outsole 502B are spaced longitudinally and transversely with respect to one another across the length and width of the associated outsole section similarly to the spacing of the spikes in the embodiment 400 of
To assemble the overshoe 500, the assembly 504A is placed into the outsole section 502A so that the common base member 506 is within the cavity 512 and the individual spikes 508 extend through respective apertures 514. Thus, all the spikes for the outsole section 502A can be placed in position within the outsole in a single operation at one time, thereby expediting the assembly process for the overshoe. In a similar manner, the assembly 504B is placed into the outsole section 502B so that the common base member of that is within its cavity and the individual spikes 508 extend through the respective apertures in that outsole section.
Once the spike assemblies and their respective outsoles are assembled, the outsole sections 502A and 502B can then be fixedly secured, e.g., glued, welded, sewn, etc., to the undersurfaces 32A and 32B, respectively, of the sole portion of overshoe 500 in the same manner as described above with reference to overshoe 400.
It should be pointed out at this juncture that the outsole sections 502A and 502B need not be shaped to include respective cavities 512 for receipt of the common base member 506 of the spikes. Instead, each of the openings through which the respective spikes extend can be in the form of a constant internal diameter aperture 514 extending the full thickness of the outsole section in which it is located. Moreover, the top surface of that outsole section will be planar. In such an arrangement the common base member 506 will overlie the contiguous top surface of the outsole section surrounding the apertures 514. The natural resiliency of the material making up the outsole section 504A and the material making up the sole portion 24A will compress slightly to accommodate the common base member 506 at the interface of the sections 504A and 24A when those sections are adhesively or otherwise fixedly secured together. In a similar manner the natural resiliency of the material making up the outsole section 504B and the material making up the sole portion 24B will compress slightly to accommodate the common base member 506 at the interface of the sections 504B and 24B when those sections are adhesively or otherwise fixedly secured together. This alternative construction is less expensive to produce, since it does not require the formation of the common specially shaped cavity from which the apertures extend.
As will be appreciated by those skilled in the art, when the outsole sections with their associated spikes are secured in place to the remainder of the overshoe, the interposition of the common base member at the interface between the outsole and the remainder of the overshoe effectively traps the associate spikes in place, thereby preventing them from accidentally coming out of the overshoe.
In
The rear or heel portion of the overshoe 600 includes an upstanding wall 608. The wall has a pair of openings 610 on either side of the central longitudinal axis of the overshoe. The wall 608 forms the heel counter of the overshoe. The openings 610 are provided in the interest of weight reduction and to facilitate stretchability of the heel counter to facilitate the mounting of the overshoe on the primary footwear. To expedite that action, the heel counter may also include a pair of pull straps 612 located above the locations of the openings 610. In the embodiment shown the central portion of the arch region is open at 614. This opening facilitates the stretching of the overshoe longitudinally to enable it to be readily mounted on the primary footwear. While not shown in
In the interests of wearing comfort and shock absorption the overshoe 600 also includes support means 34, like that described above. As before, in the interest of brevity the common components and features of the overshoe 600 will be given the same reference numbers as those components/features of overshoe 20, 100, 200 and 300. Moreover, the structure and operation of the common components/features will not be reiterated.
It should be pointed out at this juncture that the sole with support means constructed in accordance with the teachings of this invention need not be confined to usage with overshoes that are formed of a resilient (e.g., molded) material uppers. Moreover, the bi-component, spike-bearing soles constructed in accordance with the teachings of this invention need not be confined to usage with overshoes that include such uppers. Further still, soles having both the support means feature of this invention and the bi-component, spike-bearing feature of this invention need not be confined to usage with overshoes that include a resilient or molded material upper.
For example, in
In
Like the overshoe 700 shown in
In
Like the overshoe 800 shown in
While the invention has been described in detail and with reference to specific examples thereof, it will be apparent to one skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope thereof.
Claims
1. An overshoe for disposition over a primary footwear, the primary footwear having an upper, a sole and a heel, the upper having a toe portion and a heel portion, said overshoe comprising an upper portion and a sole portion, said upper portion having a hollow interior adapted for receipt of at least a portion of the primary footwear, said sole portion of said overshoe comprising a ground engaging bottom surface and support means in the form of at least one projection extending upward adjacent said hollow interior of said upper portion and adapted to support a portion of the sole of the primary footwear, said sole portion of said overshoe being in the form of a solid mass of resilient material located between said ground engaging bottom surface and said at least one projection to provide shock absorption for the primary footwear.
2. The overshoe of claim 1 wherein said support means comprises plural projections extending upward adjacent said hollow interior of said upper portion of said overshoe.
3. The overshoe of claim 1 wherein said upper portion of said overshoe is formed of a resilient material.
4. The overshoe of claim 1 wherein said upper portion of said overshoe is formed of a fabric material.
5. The overshoe of claim 1 wherein said upper portion of said overshoe includes a first portion having a hollow interior adapted to receive the toe portion of the primary footwear.
6. The overshoe of claim 5 wherein said upper portion of said overshoe includes a second portion adapted to receive a portion of the upper of the primary footwear located at the heel of the primary footwear.
7. The overshoe of claim 6 wherein said upper portion of said overshoe is formed of a resilient material.
8. The overshoe of claim 6 wherein said support means comprises plural projections located between said first and second portions of said upper portion of said overshoe and extending upward adjacent said hollow interior of said first portion of said upper portion of said overshoe.
9. The overshoe of claim 1 wherein said sole portion has a toe portion, a forefoot portion, an arch portion, a heel portion and a longitudinal axis extending from said toe portion to said heel portion.
10. The overshoe of claim 9 wherein said support means comprise plural projections located along at least a portion of said longitudinal axis.
11. The overshoe of claim 10 wherein said plural projections are generally linear shaped ridges.
12. The overshoe of claim 11 wherein said linear shaped ridges are located within said forefoot portion.
13. The overshoe of claim 12 wherein said linear shaped ridges extend at an acute angle to said longitudinal axis.
14. An overshoe for disposition over a primary footwear, the primary footwear having an upper, a sole and a heel, said overshoe comprising an upper portion and a sole portion, said upper portion having a hollow interior for receipt of at least a portion the primary footwear, said sole portion comprising a bi-component member and at least one spike, said bi-component member comprising a preformed upper layer formed of a resilient material and a preformed lower layer formed of a resilient material of substantially the same durometer as said upper layer, said at least one spike having a free end, said lower layer of said sole portion having an upper surface, a ground-engaging bottom surface and at least one cavity, said at least one cavity being open to said upper surface and said ground-engaging bottom surface and arranged to receive therein said at least one spike, whereupon said free end of said at least one spike is exposed at said ground-engaging bottom surface, said upper layer being fixedly secured to said lower layer, whereupon said at least one spike is held securely in place within said at least one cavity.
15. The overshoe of claim 14 wherein said free end of said at least one spike extends beyond said ground engaging bottom surface.
16. The overshoe of claim 14 wherein said free end of said at least one spike is substantially flush with said ground engaging bottom surface.
17. The overshoe of claim 14 wherein said free end of said at least one spike is slightly recessed from said ground engaging bottom surface.
18. The overshoe of claim 14 wherein said upper layer and said lower layer are fixedly secured together by an adhesive.
19. The overshoe of claim 14 wherein said upper layer and said lower layer are fixedly secured together by a thermally fused joint.
20. The overshoe of claim 14 wherein said upper layer and said lower layer are fixedly secured together by stitching.
21. The overshoe of claim 14 wherein said upper layer and said lower layer are fixedly secured together by one or more of an adhesive, a thermally fused joint, and stitching.
22. The overshoe of claim 14 wherein said overshoe comprises plural spikes, each of said spikes being located in a respective cavity open to said upper surface and said ground-engaging bottom surface, with said free end of each of said spikes being substantially flush with said ground-engaging bottom surface.
23. The overshoe of claim 14 wherein said at least one spike comprises a common base member and a plurality of projections extending outward from said base member, each of said projections having a free end, and wherein said at least one cavity comprises a first portion open to said upper surface for receipt of said base member therein and a plurality of apertures contiguous with said first portion, each of said apertures being open to said ground engaging bottom surface, whereupon when said base portion of said at least one spike is located within said first portion of said cavity, respective ones of said plural projections extend through respective ones of said plurality of apertures.
24. The overshoe of claim 23 wherein said free end of each of said projections is substantially flush with said ground-engaging bottom surface.
25. The overshoe of claim 23 wherein said free end of said at least one spike extends beyond said ground engaging bottom surface.
26. The overshoe of claim 23 wherein said free end of said at least one spike is substantially flush with said ground engaging bottom surface.
27. The overshoe of claim 23 wherein said free end of said at least one spike is slightly recessed from said ground engaging bottom surface.
28. The overshoe of claim 14 additionally comprising support means in the form of at least one projection extending upward adjacent said hollow interior of said upper portion and adapted to be engaged by a portion of the sole of the primary footwear, said sole portion of said overshoe being in the form of a solid mass of resilient material located between said ground engaging bottom surface and said at least one projection to provide shock absorption for the primary footwear.
29. The overshoe of claim 28 wherein said support means comprises plural projections extending into said hollow interior of said upper portion, said sole portion being in the form of a solid mass of resilient material located between said ground engaging bottom surface and said plural projections to provide shock absorption for the primary footwear.
Type: Application
Filed: Nov 23, 2005
Publication Date: May 24, 2007
Inventor: Michael Bell (Longport, NJ)
Application Number: 11/286,498
International Classification: A43B 1/10 (20060101); A43B 15/00 (20060101);