IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0893036
(1986-08-01)
|
우선권정보 |
FR-0011960 (1985-08-05) |
발명자
/ 주소 |
- Lallier Jean-Claude (Crepy en Valois FRX)
|
출원인 / 주소 |
- Societe Anonyme: Poclain Hydraulics (Verberie FRX 03)
|
인용정보 |
피인용 횟수 :
5 인용 특허 :
0 |
초록
▼
The invention relates to a braking device, constituted by a housing in which is housed a brake disc fixed in rotation with respect to the housing, a shaft mounted to rotate, a rotary brake disc, fast with the shaft, a first jack, constituting a pressurized fluid braking control member, and a second
The invention relates to a braking device, constituted by a housing in which is housed a brake disc fixed in rotation with respect to the housing, a shaft mounted to rotate, a rotary brake disc, fast with the shaft, a first jack, constituting a pressurized fluid braking control member, and a second jack distinct and independent of the first jack, which defines, inside the housing, a brake-release chamber, to which is coupled an elastic safety braking member, the mobile element of the first jack and the piston of the second jack being stacked axially in that order from only one of the two ends of the alternate stack of the fixed and rotary brake discs. The mobile elements of the two jacks are each at least partly contained in the brake-release chamber which, furthermore, contains each fixed brake disc and 1 or each rotary brake disc. One application of the present invention is a multiple-effect brake of satisfactory compactness.
대표청구항
▼
A braking device with multiple effects of parking and emergency braking via an elastic return member, service braking by pressurized fluid control, and release of the brake by pressurized fluid control comprising: a housing having at least one brake disc fixed in rotation therewith, a shaft mounted
A braking device with multiple effects of parking and emergency braking via an elastic return member, service braking by pressurized fluid control, and release of the brake by pressurized fluid control comprising: a housing having at least one brake disc fixed in rotation therewith, a shaft mounted to rotate with respect to the housing and forming part of a body having to be braked, at least one rotary brake disc, fast in rotation with the shaft connected to the housing and engageable with the fixed disc, each said fixed disc being interposed adjacent to the at least one rotary brake disc, at least one source of pressurized fluid, at least one reservoir of non-pressurized fluid, a first jack of which the element axially movable inside the housing defines the member controlling the pressurized braking fluid, and is connected to a source of pressurized fluid via a first fluid pipe, a first fluid distributor interposed on said first fluid pipe, said first distributor separating the first fluid pipe into a first section connnected to the first jack and a second section connected to the source of pressurized fluid, a second fluid pipe connecting the first distributor to a reservoir of non-pressurized fluid, said first distributor having at least two positions, a first position which causes the first and second sections of the first pipe to communicate with one another, and a second position which causes the first section to communicate with the second pipe, a second jack having a piston which is separate and independent of the movable element of the first jack, which defines, inside the housing, a brake-release chamber and to which is coupled said elastic return means of the parking and emergency braking, the effect of which is opposite to that of the prssure of the fluid which may be contained in the brake-release chamber, a third fluid pipe, a second fluid distributor interposed on said third pipe, said second fluid distributor separating the third pipe into a first portion connected to the brake-release chamber and a second portion connected to the source of pressurized fluid, a fourth pipe connected the second distributor to a reservoir of non-pressurized fluid, said second distributor having at least two positions, a first position which causes the first and second portions of the third pipe to communicate with one another and a second position which causes the first portion of the third pipe to communicate with the fourth pipe, and the movable element of the first jack and the piston of the second jack being stacked axially in that order from only one of the two ends of the alternate stack of the fixed and rotary brake discs, the movable elements of the two jacks are each at least partly contained in the brake-release chamber which, contains each fixed brake disc and each rotary brake disc.
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