Title:
METHOD FOR MAKING A CASING WITH PROTECTIVE BELLOWS FOR TRANSMISSION DEVICE AND CASING OBTAINED BY SAID METHOD
Document Type and Number:
WIPO Patent Application WO2004062895
Kind Code:
A3
Abstract:
The invention concerns a method for making a casing (1) with protective bellows (2, 2A) for transmission device, such as a transmission joint, comprising at least two shafts mobile axially and/or at an angle relative to each other, said casing (1) with bellows (2, 2A), whereon at least part of the bellows (2') are radial, having at each open end a section (3A, 3B) for being fixed to the transmission device. Said method is characterized in that it consists in moulding the casing (1) with bellows (2, 2A), using a hollow mould and at least one core, having each at least a matching helical thread delimiting the moulding space and in stripping the casing (1) formed by relatively unscrewing the casing (1) and the core to obtain a single-piece casing (1). The invention is applicable to a casing with bellows by arrangement of extensible or flexible coupling elements.
Inventors:
RENZO BERNARD (FR)
Application Number:
PCT/FR2003/003653
Publication Date:
August 26, 2004
Filing Date:
December 10, 2003
Export Citation:
Assignee:
RZ ENGINEERING (FR)
RENZO BERNARD (FR)
RENZO BERNARD (FR)
International Classes:
B29C45/26; B29D22/02; F16D3/84; F16J3/04; B29C45/16; (IPC1-7): B29D22/00; B29C45/26; F16J3/04; B29D1/00; B29C45/16
Foreign References:
| DE29519333U1 | 1997-01-09 | |||
| US5006376A | 1991-04-09 | |||
| FR2606849A1 | 1988-05-20 | |||
| EP0647790A1 | 1995-04-12 | |||
| FR2596693A1 | 1987-10-09 | |||
| US4988113A | 1991-01-29 |
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