Title:
SHAPED BODY FOR PRODUCTION OF SPORTS EQUIPMENT AND METHOD FOR PRODUCTION OF SAID SHAPED BODY
Document Type and Number:
WIPO Patent Application WO2001047605
Kind Code:
A3
Abstract:
The invention relates to a shaped body (2), for production of sports equipment, in particular tennis, squash, and badminton rackets, golf clubs, hockey and ice hockey sticks and baseball bats, comprising two tubular resonant bodies (4, 6), running parallel to and at a separation from each other, surrounded by a common shell (12) and a spacer body (8), which is arranged between the resonance bodies (4, 6), in such a way that the resonance bodies (4, 6) are coupled, whereby the mass relationship between each resonance body (4, 6) and the spacer body (8) is greater than 1. The vibrations of the two vibrating systems, in the form of the resonance bodies (4, 6), are overlaid in a advantageous manner, by means of the coupling of the resonance bodies (4, 6). The invention further relates to a method for the production of the shaped body (2).
Inventors:
SOMMER ROLAND (DE)
Application Number:
PCT/EP2000/013285
Publication Date:
December 27, 2001
Filing Date:
December 27, 2000
Export Citation:
Assignee:
SOMMER ROLAND (DE)
International Classes:
A63B49/10; B29C70/44; B29D99/00; (IPC1-7): A63B49/10; B29C70/44; B29D31/00
Foreign References:
| US2878020A | 1959-03-17 | |||
| DE3922701A1 | 1991-01-17 | |||
| DE2741741A1 | 1978-03-30 | |||
| EP0235777A2 | 1987-09-09 | |||
| US4357013A | 1982-11-02 | |||
| DE2621062A1 | 1976-12-02 | |||
| GB1434741A | 1976-05-05 | |||
| US3949988A | 1976-04-13 | |||
| US5454562A | 1995-10-03 |
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