Interchangeable foreparts for shoes

Abstract

The invention relates to a footwear kit and method of providing a footwear kit comprising a forepart that can be removably attached to both a left shoe and a right shoe, in which the shoes are substantially asymmetric about a line running from the front to the back of the shoe, and in which the periphery of the forepart substantially matches the periphery of the toe region of both the left shoe and the right shoe.

Claims

1. A footwear kit comprising: a left shoe; a right shoe; wherein said left shoe and said right shoe each have a toe region; wherein said toe region is substantially symmetric about a first center line running from a front of said toe region to a back of said toe region and substantially asymmetric about a second center line perpendicular to said first center line and running from a left to a right of said toe region; wherein said left shoe and said right shoe each has a peripheral shape that is substantially asymmetric about a line running from a front to a back of said left shoe or said right shoe; at least one forepart; wherein said at least one forepart has a periphery which substantially matches a periphery of said toe region of both said left shoe and said right shoe; wherein said toe region has a frontmost edge which is a frontmost edge of said left shoe or said right shoe; wherein said toe region covers an entire area until at least three eighths of a distance from said frontmost edge to a backmost edge of said left shoe or said right shoe.

2. The footwear kit according to claim 1, wherein said left shoe and said right shoe each further comprises a heel region and at least one heel part.

3. The footwear kit according to claim 2, wherein said heel region of said left shoe and said heel region of said right shoe are substantially similar in that said at least one heel part can be interchangeably received by said heel region of said left shoe and said heel region said right shoe.

4. The footwear kit according to claim 3, wherein said at least one heel part has a periphery which substantially matches a periphery of said heel region of said left shoe and a periphery of said heel region of said right shoe.

5. The footwear kit according to claim 4, wherein said at least one heel part is removably attachable to said heel region of either said left shoe or said heel region of said right shoe as an outsole.

6. The footwear kit according to claim 1, wherein a periphery of said toe region of said left shoe and a periphery of said toe region of said right shoe are substantially similar.

7. The footwear kit according to claim 1, wherein said footwear kit comprises at least two foreparts and each of said at least two foreparts has a traction characteristic different from the other.

8. The footwear kit according to claim 1, wherein said at least one forepart is removably attachable to either said right shoe or said left shoe as an outsole.

9. A footwear kit comprising: a left shoe; a right shoe; wherein said left shoe has a toe region and said right shoe has a toe region; wherein said toe region of said left shoe is substantially symmetric about a first center line running from a front to a back of said toe region of said left shoe and substantially asymmetric about a second center line perpendicular to said first center line and running from a left to a right of said toe region of said left shoe; wherein said toe region of said right shoe is substantially symmetric about a third center line running from a front to a back of said toe region of said right shoe and substantially asymmetric about a fourth center line perpendicular to said third center line and running from a left to a right of said toe region of said right shoe; wherein said left shoe has a peripheral shape that is substantially asymmetric about a line running from a front to a back of said left shoe; wherein said right shoe has a peripheral shape that is substantially asymmetric about a line running from a front to a back of said right shoe; at least one forepart; wherein said at least one forepart has a periphery which substantially matches a periphery of said toe region of said left shoe or a periphery of said toe region of said right shoe; wherein said toe region of said left shoe has a frontmost edge which is a frontmost edge of said left shoe; wherein said toe region of said right shoe has a frontmost edge which is a frontmost edge of said right shoe; wherein said toe region of said left shoe covers an entire area until at least three eighths of a distance from said frontmost edge of said left shoe to a backmost edge of said left shoe; wherein said toe region of said right shoe covers an entire area until at least three eighths of a distance from said frontmost edge of said right shoe to a backmost edge of said right shoe.

10. The footwear kit according to claim 9, wherein said left shoe further comprises a heel region and said right shoe further comprises a heel region.

11. The footwear kit according to claim 10, wherein said footwear kit further comprises at least one heel part.

12. The footwear kit according to claim 11, wherein said heel region of said left shoe and said heel region of said right shoe are substantially similar in that said at least one heel part can be interchangeably received by said heel region of said left shoe and said heel region of said right shoe.

13. The footwear kit according to claim 11, wherein said at least one heel part has a periphery which substantially matches a periphery of said heel region of said left shoe.

14. The footwear kit according to claim 11, wherein said at least one heel part has a periphery which substantially matches a periphery of said heel region of said right shoe.

15. The footwear kit according to claim 11, wherein said at least one heel part can be removably attached to said heel region of said left shoe.

16. The footwear kit according to claim 11, wherein said at least one heel part can be removably attached to said heel region of said right shoe.

17. The footwear kit according to claim 9, wherein said at least one forepart can be removably attached to said toe region of said left shoe.

18. The footwear kit according to claim 9, wherein said at least one forepart can be removably attached to said toe region of said right shoe.

19. The footwear kit according to claim 9, wherein said periphery of said toe region of said left shoe and said periphery of said toe region of said right shoe are substantially similar.

20. The footwear kit according to claim 9, wherein said footwear kit comprises at least two foreparts and each of said at least two foreparts has a traction characteristic different from the other.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a perspective view of a pair of bowling shoes, a pair of foreparts and a pair of heels comprising a bowling footwear kit.

(2) FIG. 2 is a bottom view of the left and right shoe of the bowling footwear kit juxtaposed on top of each other.

(3) FIG. 3A is a perspective view of the right shoe, with removable foreparts and heel parts in position to be attached, and showing a hook and loop fastening system for attachment.

(4) FIG. 3B is a perspective view of the left shoe, with removable foreparts and heel parts in position to be attached, and showing a hook and loop fastening system for attachment.

DETAILED DESCRIPTION OF THE INVENTION

(5) Referring now to the figures in which identical elements are numbered identically throughout, a description of exemplary embodiments of the present invention will now be provided.

(6) Referring now to FIG. 1, a bowling footwear kit 1 includes a right shoe 2A and a left shoe 2B. Each shoe comprises a shoe upper 3 that is conventional in construction, and is preferably constructed from leather materials. However, it should be understood that any other suitable material may be used for the shoe upper in accordance with the present invention. Each shoe also has a midsole (4A and 4B respectively) preferably constructed from ethylene vinyl acetate (EVA), although other conventional shoe sole materials are also suitable.

(7) FIGS. 3A and 3B show that the midsoles 4A and 4B each have a toe region 5A and 5B respectively and a heel region 6A and 6B respectively. The toe regions 5A and 5B are sized to include the entire area from the front of each shoe 2A and 2B to a selected line in front of the heel region 6A and 6B of each shoe. The toe regions 5A and 5B are designed to receive outsole foreparts which are removably attachable, as described below. The size of the toe region may vary according to the desired level of traction and sliding. According to the embodiment shown in FIGS. 3A and 3B, the toe regions 5A and 5B of the left shoe 2B and the right shoe 2A extend to about three eighths of the distance between the front and the back of each shoe. In other embodiments, the toe regions 5A and 5B may extend from about one half to about three fourths of the distance between the front of the shoe and the back of each shoe. In yet other embodiments of the present invention, the toe regions 5A and 5B may also extend from about five eighths to about seven eighths of the distance between the front of the shoe and the back of each shoe 2A and 2B.

(8) As shown in FIG. 1, the bowling footwear kit further includes a first forepart 7 and a second forepart 8 which function as outsoles for the toe regions 5A and 5B of the right shoe 2A and the left shoe 2B respectively. Each forepart is made out of a sheet of flexible material having a predetermined traction characteristic. The term traction characteristic encompasses any quality of the forepart that affects the amount of traction between the shoe and the surface on which it is placed. Traction refers to the adhesive friction between the shoe outsole and the surface upon which it is placed. A first example of a traction characteristic of a forepart that can be varied is the coefficient of static and/or kinetic friction associated with the material used to form the forepart. Thus, traction characteristics may be varied by using materials having a high coefficient of friction, such as rubber or the like, or a low coefficient of friction, such as leather or the like. A second example of a traction characteristic of a forepart that can be varied is the design of the tread of the forepart for contacting the floor surface. The traction characteristic can be adjusted by varying the surface area of the forepart that comes into contact with the floor surface, or by adjusting the shapes of the regions of the forepart that contact the floor surface. For example, grooves or ridges may be formed on the tread of the forepart to provide for a desired amount of traction.

(9) Each forepart has a bottom surface 14 for contact with the ground and a mounting surface 13 for contact with and mounting to the toe regions 5A and 5B. As shown in FIG. 1, the traction characteristic of bottom surface 14A is different than that of bottom surface 14B. This is designated by different orientations of the lines drawn on each surface in FIG. 1. Each forepart further has a peripheral shape that substantially matches the peripheral shape of the toe regions 5A and 5B of both the right shoe 2A and the left shoe 2B, such that each forepart may be mounted to the left shoe 2B and to the right shoe 2A. Specifically, the peripheral shape of the first forepart 7 and the peripheral shape of the second forepart 8 are substantially identical to each other, as shown in FIGS. 1 and 2, and substantially identical to the peripheral shape of the toe regions 5B and 5A of the left shoe 2B and right shoe 2A, as illustrated in FIG. 3. Thus, the first forepart 7 may be removably attached to the toe region 5A of the right shoe 2A or the same first forepart 7 may be removably attached to the toe region 5B of the left shoe 2B. Likewise, the second forepart 8 may be removably attached to the toe region 5A of the right shoe 2A or to the toe region 5B of the left shoe 2B. This permits a user of the kit 1 to select which of shoes 2A or 2B will receive forepart 7, and which will receive forepart 8, depending on whether the user bowls left-handed or right-handed.

(10) When attached, the foreparts cover the entire toe region area of each shoe. This feature of the present invention is important because it prevents the peripheral shoe sole material from making contact with the bowling surface, which affects the movement of the bowler. This feature provides a consistent feel and consistent amount of traction to the wearer. This shoe construction allows the shoe to function as though the entire shoe sole was constructed from the material that comprises the forepart.

(11) To provide bowlers with even greater flexibility, the bowling footwear kit may also include a first heel part 9 for removably attaching to the heel region 6B of the left shoe 2B or the heel region 6A of the right shoe 2A, and a second heel part 10 for removably attaching to the heel region 6B of the left shoe 2B or the heel region 6A of the right shoe 2A. Each heel part has a bottom surface 17 for contact with the ground and a mounting surface 18 for contact with and mounting to the heel regions 6A and 6B. Each removable heel part comprises a material having a predetermined traction characteristic. Bottom surface 17 A has a different traction characteristic than bottom surface 17B. Various material having varied traction characteristics, such as rubber and the like, are well known in the bowling shoe art and can be used in connection with the present invention.

(12) FIG. 2 is a bottom view of the right shoe 2A and the left shoe 2B juxtaposed on top of each other. Forepart 7 and heel part 9 are shown attached to the shoe 2B, and is shown in broken lines attached to shoe 2A for comparison. As can be clearly seen in FIG. 2, although the left and right shoe are substantially asymmetric and are mirror images of each other in peripheral shape, the peripheral shapes of the toe region 5B of the left shoe 2B and of the toe region 5A of the right shoe 2A are substantially identical. Similarly, the peripheral shape of the forepart 7 is substantially identical to that of both the toe regions 5A and 5B. As described in more detail below, such construction allows for interchangeable attachment of various foreparts and heel parts to either the left or right shoe, without the need to purchase differently-shaped foreparts for each shoe.

(13) FIGS. 3A and 3B show that the foreparts 7 and 8 and the heel parts 9 and 10 each may be used on either the right shoe 2A or the left shoe 2B. The foreparts and heel parts are shown aligned with the toe regions and heel regions of each shoe in FIGS. 3A and 3B. As can be seen in FIGS. 3A and 3B, the shapes of the heel region 6B of the left shoe 2B and the heel region 6A of the right shoe 2A are also substantially identical. This allows for the first heel part 9 to be removably attached to the heel region 6B on the left shoe 2B and also to be removably attached to the heel region 6A on the right shoe 2A. Similarly, the second heel part 10 also may be removably attached to the heel region 6B on the left shoe 2B and also may be removably attached to the toe region 6A on the right shoe 2A.

(14) A fastening system is provided for removably securing interchangeable foreparts 7 and 8, as well as the heel parts 9 and 10 to the midsoles of the shoes. The mounting surface 13 of the foreparts 7 and 8 includes a first part 15 of the fastening system for attaching to a second part 16 of the fastening system which is disposed on the toe region 5B of the left shoe 2B and the toe region 5A of the right shoe 2A. Likewise, the mounting surface 18 of the heel parts 9 and 10 includes the first part 15 of the fastening system for attaching to the second part 16 of the fastening system which is disposed on the heel regions 6A, 6B of the left shoe 2B and the right shoe 2A respectively. The mounting surfaces 13 and 18 of the forepart and heel part are shown in FIG. 1 for illustration purposes. The fastening system can include hooks interlockingly engaging pile loops, adhesives, and other known techniques that allow for releasable attachment of a first body to a second body. For example, the hook portion may be attached to the foreparts and the heel parts, and the loop portion may be attached to the midsoles, although the opposite configuration would be equally effective. The hook portion and the loop portion may be attached to the mating faces by any suitable customary means, such as by adhesive or bonding.

(15) In use, the foreparts 7, 8 and the heel parts 9, 10 are aligned over the toe regions 5A, 5B and the heel regions 6A, 6B respectively and the hook material 16 of the foreparts 7, 8 and the heel parts 9, 10 is firmly pressed against the loop material 15 of the toe and heel regions to secure the foreparts and heel parts in position, as shown in FIGS. 3A and 3B. When a shoe with a different traction characteristic is needed, the user simply removes one forepart or one heel part and replaces it with another forepart or heel part made with different slide material, thus giving the shoe a different traction characteristic.

(16) The bowling footwear kit may further include a third forepart having a third traction characteristic and a fourth forepart having a fourth traction characteristic to allow for even more versatility. The third and fourth traction characteristics are different from each other and from the first and second traction characteristics of the first forepart 7 and second forepart 8 respectively. As described above with respect to the first forepart 7 and the second forepart 8, the third forepart and the fourth forepart can be removably attached to either the toe region 5A of the right shoe 2A or the toe region 5B of the left shoe 2B, and thus are interchangeable with the first and second foreparts. It should be further understood that a greater number of foreparts and heel parts, all having different traction characteristics, may be provided to accommodate a variety of lane surface conditions and bowler's individual styles.

(17) Although the invention has been described with reference to several embodiments with certain constructions, structures, ingredients and formulations and the like, these are not intended to exhaust all possible arrangements or features, and indeed many other modifications and variations will be ascertainable to those of skill in the art