Studded footwear
A shoe stud and receptacle, the shoe stud including a ground-engaging part and the two components are adapted to be secured together by a multi-start threaded connection comprising a screw-threaded spigot on one of the two components adapted to be inserted with rotation into a screw-threaded socket on the other component, and a locking means of the components which is arranged to become interengaged to resist unscrewing of the assembly, the locking means comprising a primary locking means and at least one secondary locking member, the primary locking means comprising a ring of posts extending axially from one of the components and a ring of teeth on the other component, the posts engaging between the teeth, and wherein the or each secondary locking member is adapted to engage with a post to maintain the interengagement of the primary locking means.
1. A combination of a shoe stud and receptacle, the shoe stud includes a ground-engaging part and the two components are adapted to be secured together by a multi-start threaded connection comprising a screw-threaded spigot on one of the two components adapted to be inserted with rotation into a screw-threaded socket on the other component, and a locking means on one of the components which is arranged to become interengaged to resist unscrewing of the assembly, the locking means comprising a primary locking means and at least one secondary locking member, the primary locking means comprising a ring of posts extending axially from one of the components and a ring of teeth on the other component, the posts engaging between the teeth, and wherein the or each secondary locking member projects radially from a surface of said other of the components to engage with a respective post to maintain the interengagement of the primary locking means, wherein the secondary locking member comprises at least one hooked member, the arrangement being such that the at least one hooked member engages and partially surrounds at least one of the posts when the spigot has been screwed into the socket to a predetermined axial position.
2. A combination according to claim 1 , in which the hooked member comprises a radially extending part and circumferentially extending part.
3. A combination according to claim 2 , in which both the radially and circumferentially extending parts of the hooked members are adapted to engage a corresponding post.
4. A combination according to claim 2 , in which only the circumferentially extending part is adapted to contact a corresponding post when the stud is fully engaged with the receptacle.
5. A combination according to claim 2 , in which the radially extending part provides a stop that engages with a post after a predetermined amount of rotation.
6. A combination according to claim 1 , in which the posts include a projection that is adapted to engage in a notch in a radially inner surface of the hooked members.
7. A combination according to claim 1 , in which three secondary locking members are provided and extend axially substantially the full height of said posts.
8. A combination according to claim 1 , in which the secondary locking members extend axially substantially the full height of said posts and are equally circumferentially spaced.
9. A combination according to claim 1 , in which six of said posts are provided and the secondary locking members extend axially substantially the full height of said posts, and are arranged in a ring.
10. A combination according to claim 1 , in which the threaded connection is adapted to ensure that each secondary locking members engages with the same respective posts whenever the primary locking means is interengaged.
11. A combination according to claim 1 , in which the multi-start thread has two starts.
12. A combination according to claim 1 , in which the multi-start thread has three starts.
13. A combination according to claim 1 , in which the threaded connection provides means to determine the initial position of the stud relative to the receptacle by one of the threads and grooves being different from the other or others to provide a key and complementary keyway.
14. A combination according to claim 13 , in which the key comprises an enlarged thread on one of the components and a correspondingly enlarged groove on the other component.
15. A combination according to claim 13 , in which the key comprises a bridged thread on one of the components, and a removed thread on the other component.
16. A combination according to claim 13 , in which the key is provided on the receptacle and the keyway on the stud.
17. A combination of components including a shoe stud and a receptacle, the shoe stud including a ground-engaging part and the two components are adapted to be secured together by a multi-start threaded connection comprising a screw-threaded spigot on one of the two components adapted to be inserted with rotation into a screw-threaded socket on the other component, and a locking means for the components which is arranged to become interengaged to resist unscrewing of the assembly, the locking means comprising a ring of radially inward protruding posts extending axially from said stud and a ring of teeth on said receptacle projecting radially outward from said socket, the ring of the posts engaging radially between the teeth, and at least one radially extending stop member on said receptacle adapted to form a stop for a corresponding post when the assembly is fully interengaged, wherein the radially extending stop member includes a circumferentially extending part that engages with the corresponding post to maintain the interengagement of the locking means, and wherein the stop member and circumferential part are in the form of a hooked member.
18. A combination according to claim 17 , in which six posts are provided arranged in a ring.
19. A combination according to claim 17 , in which the threaded connection is adapted to ensure that the stop member engages with the same posts whenever the locking means is interengaged.
20. A combination according to claim 17 , in which the multi-start thread has three starts.
21. A combination according to claim 17 , in which the threaded connection provides means to determine the initial position of the stud relative to the receptacle by one of the threads and grooves being different from the other or others to provide a key and complementary keyway.
22. A combination according to claim 21 , in which the key comprises an enlarged thread on one of the components and a correspondingly enlarged groove on the other component.
23. A combination according to claim 21 , in which the key comprises a bridged thread on one of the components, and a removed thread on the other component.
24. A combination according to claim 21 , in which the key is provided on the receptacle and the keyway on the stud.
25. A combination according to claim 17 , in which the hooked member includes a notch that is adapted to engage a projection on the corresponding post.