Boots – shoes – and leggings – Boots and shoes – Occupational or athletic shoe
Patent
1995-09-27
1997-12-02
Dayoan, B.
Boots, shoes, and leggings
Boots and shoes
Occupational or athletic shoe
36 61, 36115, 36 81, A43B 500
Patent
active
056923236
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
This invention relates to improvements in footwear and refers particularly, though not exclusively, to footwear of the nature shown in my earlier International Application PCT/AU91/00590 lodged 20th December 1991 and having a priority date of 20th December 1990.
It has been found in certain sports that the relatively rotatable member in the sole requires very strong resilient strength to return to the "centre" position. This is particularly important in sports where there can be strong grip between a relatively rotatable member and the playing surface. For example, in football of its varying natures, sprigs or spikes may be used to obtain better grip. If the ground is somewhat hard, and they obtain very good grip, the return force required needs to be fairly high. Also, the players can be fairly large and strong and thus fairly large and strong springs are required. Furthermore, the playing surfaces themselves are rather dirty and thus a spring under the relatively rotatable member is of great advantage.
SUMMARY OF THE INVENTION
It is therefore the principle object of the present invention to provide improvements in footwear wherein there is a recess in the sole and a turntable is mounted in the recess for a limited rotation relative to the sole, the turntable being operatively connected to the sole by a resilient means mounted between the turntable and the sole.
With the above and other objects in mind the present invention provides an article of footwear having a sole, said sole having a lower surface; a recess in said lower surface, and a turntable mounted in said recess for limited rotation relative to said sole; said turntable being operatively connected to said sole by at least one resilient means mounted between said turntable and said sole so as to cause said turntable to return to a rest position, said turntable being limited in its angular rotation relative to said sole.
BRIEF DESCRIPTION OF THE DRAWING
In order that the invention may be fully understood there shall now be described a preferred construction of an article of footwear incorporating the improvements of the present invention, the description being by way of non-limitative example only and being with reference to the accompanying illustrative drawing, FIG. 1, being an exploded perspective view.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
This description is with reference to U.S. application Ser. No. 08/075,502, titled FOOTWEAR WITH TURNTABLE, now U.S. Pat. No. 5,392,537, hereby incorporated by reference, and corresponding to my earlier International Application PCT/AU91/00590.
For the current invention the article of footwear has a sole generally designated as 10 and which has an undercut recess generally designated as 12 as shown in phantom in FIG. 1, the details of which are in accordance with the aforesaid International Application.
Mounted in the sole 10 within the recess 12 is a central hub 14 as well as an arcuate lug 16. Two small and substantially identical lugs 18 and a small pin 20 are also provided.
A spring module 22 having a plate 24 and a spring 26 held in place by a retaining clip 28 is provided. The spring module 22 has a large aperture 30 which is intended to pass over the hub 14. A smaller aperture 32 is intended to pass over the pin 20. The small lugs 18 locate the spring module 22 in position so that the plate 24 fits inside the arcuate lug 16 as well as the locating lugs 18. The engagement of the pin 20 in aperture 32 and hub 14 in aperture 30 accurately locates the spring module 22 in position.
The turntable is generally designated as 34 and has an upper portion 36 with there being a larger diameter lower portion 38 adapted to co-operate with the undercut recess 12. An arcuate recess 40 is provided so as to co-operate with the arcuate lug 16 both in the sense of locating the turntable 34 and limiting arcuate movement. A central opening 42 is provided in which the hub 14 can be located. Also provided is an enlarged recess 44 which accommodates the spring module 22. A fur
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Dayoan B.
Rotasole Pty. Ltd.
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