Element for gripping an item of sports equipment
Disclosed is an element for gripping an item of sports equipment, including a core made of composite material having a fibrous framework included in a polymer matrix. The gripping element has an external layer enveloping the core and having an interwoven textile material, separate from the framework, that is partially embedded in the matrix and emerges from the matrix onto an outer surface of the gripping element. Also disclosed is a handrail of a gymnastics apparatus and to an item of sports equipment having such a gripping element, as well as a method for manufacturing such a gripping element.
1. A grip member of an item of sports equipment, comprising a core ( 2 ) of composite material comprising a fibrous reinforcement included in a polymer matrix,
the grip member comprising an outer layer ( 3 ) enveloping the core ( 2 ) and comprising an interlaced textile material, distinct from the reinforcement, partly embedded in the matrix and emerging from said matrix on an outside surface ( 4 ) of the grip member.
2. A grip member according to claim 1 , wherein the interlaced textile material is substantially constituted by natural fibers.
3. A grip member according to claim 2 , wherein the textile is constituted by natural fibers chosen from: linen fibers, jute fibers, bamboo fibers, hemp fibers.
4. A grip member according to claim 3 , of which the outer layer ( 3 ) comprises two to four superposed layers of interlaced textile material.
5. A grip member according to claim 3 , wherein the fibrous reinforcement comprises glass fibers, and/or carbon fibers.
6. An item of sports equipment comprising a grip member according to claim 3 , said item of sports equipment being either uneven bars for gymnastics ( FIG. 1 ), or parallel bars for gymnastics, or another gymnastics apparatus, or an oar, or a paddle, or a pole-vaulting pole.
7. A grip member according to claim 2 , of which the outer layer ( 3 ) comprises two to four superposed layers of interlaced textile material.
8. A grip member according to claim 2 , wherein the fibrous reinforcement comprises glass fibers, and/or carbon fibers.
9. An item of sports equipment comprising a grip member according to claim 2 , said item of sports equipment being either uneven bars for gymnastics ( FIG. 1 ), or parallel bars for gymnastics, or another gymnastics apparatus, or an oar, or a paddle, or a pole-vaulting pole.
10. A grip member according to claim 1 , of which the outer layer ( 3 ) comprises two to four superposed layers of interlaced textile material.
11. A grip member according to claim 10 , wherein the fibrous reinforcement comprises glass fibers, and/or carbon fibers.
12. An item of sports equipment comprising a grip member according to claim 10 , said item of sports equipment being either uneven bars for gymnastics ( FIG. 1 ), or parallel bars for gymnastics, or another gymnastics apparatus, or an oar, or a paddle, or a pole-vaulting pole.
13. A grip member according to claim 1 , wherein the fibrous reinforcement comprises glass fibers, and/or carbon fibers.
14. An item of sports equipment comprising a grip member according to claim 13 , said item of sports equipment being either uneven bars for gymnastics ( FIG. 1 ), or parallel bars for gymnastics, or another gymnastics apparatus, or an oar, or a paddle, or a pole-vaulting pole.
15. A hand bar ( 1 , 1 ′) of a gymnastics apparatus comprising a grip member according to claim 1 .
16. The hand bar of claim 15 , wherein the gymnastics apparatus is uneven bars or parallel bars.
17. An item of sports equipment comprising a grip member according to claim 1 , said item of sports equipment being either uneven bars for gymnastics ( FIG. 1 ), or parallel bars for gymnastics, or another gymnastics apparatus, or an oar, or a paddle, or a pole-vaulting pole.
18. A manufacturing process according to claim 17 , wherein the formation of the outer layer ( 3 ) employs an interlaced textile material comprising thermoplastic threads.
19. A process for manufacturing a grip member of an item of sports equipment according to claim 1 , comprising the steps of:
simultaneously forming the core ( 2 ) and the outer layer ( 1 ), and polymerization of the matrix;
abrading an outside surface ( 4 ) of the outer layer ( 3 ) so as to make the textile material of the outer layer emerge from the polymerized matrix.
20. A manufacturing process according to claim 19 , wherein the simultaneous forming of the core ( 2 ) and of the outer layer ( 3 ) is carried out by pultrusion.