Brake device with controlled brittle zone
US6041601A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 1997 |
| Grant date | Mar 28, 2000 |
| Priority date | — |
| Expiry date | Dec 16, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T13/567
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A brake device having a master cylinder (1) connected to a pneumatic booster (2). The pneumatic booster (2) having a rigid casing (3) in which a partition (4) moves to delimit a front chamber (5) from a rear chamber (6). The casing (3) has a front shell (31) which is secured to the master cylinder (1) to form a first wall for the front chamber (5) and a rear shell (32) which forms a second wall for the rear chamber (32). In order to increase the absorption of kinetic energy in the event of an impact force being applied to the front shell (31), the front shell (31) has a peripheral member (311) secured to the rear shell (32) and a central member (312) secured to the master cylinder (1). The peripheral member (311) has a larger relative diameter (D1) than the diameter (D2) for the central member (312). The peripheral member (311) and the central member (312) are connected together in an annular overlap region (313) in a manner such that in at least the overlap region (313) the peripheral part is located in an axial direction closer to the master cylinder (1). In response to a predetermined frontal or oblique impact force being applied to the front shell (31), the connection in the ov…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.