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US 8,672,796 B2Granted
Adjustment device, in particular for a vehicle seat
AssigneeJohnson Controls Technology Company
InventorsDirk Schulz, Stefan Haida
Life of this patent
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Abstract
An adjustment device is disclosed for carrying out at least one adjustment function, such as for a motor vehicle seat. The device includes a drive in the form of a planetary gear mechanism. The mechanism has a planet carrier and an output. The output is stopped by a brake device when the drive is not actuated. The planet carrier cooperates with the brake device to release the brake device.
Claims15
An adjustment device for adjusting a motor vehicle seat, comprising:
- a drive in the form of a planetary gear mechanism, wherein the drive comprises a planet carrier and an output shaft configured to be stopped by a brake device when the drive is not actuated, the planet carrier comprising a plurality of projections configured to cooperate with the brake device such that the brake device is selectively releasable, and wherein the brake device comprises a brake ring and an inner ring forming a gap between the brake ring and the inner ring, a pair of rolling bodies and the plurality of projections of the planet carrier being arranged within the gap, and a spring being arranged between the pair of rolling bodies, the spring being configured to limit a transfer of torque between the brake device and the planet carrier.
An adjustment device for adjusting a motor vehicle seat, comprising;
- a drive comprising a planet carrier, wherein the planet carrier comprises a plurality of projections;
- an output;
- a brake device configured to direct torques acting on the drive substantially away from the output;
- and
- a bearing arrangement for the output and the brake device, wherein the bearing arrangement is arranged in a housing;
- wherein the brake device comprises a brake ring and an inner ring forming a gap between the brake ring and the inner ring, a pair of rolling bodies and the plurality of projections of the planet carrier being arranged within the gap, and a spring being arranged between the pair of rolling bodies, and wherein the spring is configured to limit a transfer of torque between the brake device and the planet carrier.
3 more elements
Dependencies are inferred from the claim text.