# US 9,751,437 B2 · Drive for motor-vehicle accessory

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 9,751,437 B2
- Document ID: US9751437B2
- Status: Granted
- Kind: B2
- Application number: 15/003,090
- Filed: 2016-01-21
- Published: 2016-07-28
- Granted: 2017-09-05
- Earliest claimed: 2015-01-28
- Assignees: Grammer AG
- Applicants: Grammer AG
- Inventors: Maximilian Kotz; Michael Roemer; Joerg Damaske; Ulrich Hohl; Heiner Fees
- Web page: https://patentgrep.com/patent/US9751437B2

## CPC

- B60N 2/809: vertically slidable
- B60N 2/806: movable or adjustable
- B60N 2/829: characterised by their adjusting mechanisms, e.g. electric motors
- B63B 2029/043: {Seats; Arrangements thereof on vessels}
- B60N: SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B63B: SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING (arrangements of vessel ventilation, heating, cooling, or air-conditioning B63J2/00; floating substructures as supports of dredgers or soil-shifting machines E02F9/06)

## Abstract

A drive for a motor-vehicle accessory has a drive motor, a controller that regulates the drive motor, and a sensor associated with the drive motor and that measures the motor speed of the drive motor and transmits to the controller a signal having a pulse rate corresponding to the motor speed. A pulse-rate modifier between the sensor of the drive motor and the controller serves to modify the pulse rate received from the drive motor in such a way that this rate is within a range of the pulse rate processable by the controller and to transmit a modified value of the pulse rate to the controller.

## Claims

### Claim 1

A drive for a motor-vehicle accessory comprising:
a drive motor;
a controller that regulates the drive motor;
a sensor associated with the drive motor and that measures the motor speed of the drive motor and transmits to the controller a signal having a pulse rate corresponding to the motor speed; and
a pulse-rate modifier between the sensor of the drive motor and the controller that
modifies the pulse rate received from the drive motor in such a way that this rate is within a range of the pulse rate processable by the controller, and
transmits a modified value of the pulse rate to the controller.

### Claim 2 (depends on 1)

The drive according to claim 1, wherein the pulse-rate modifier is an electronic component.

### Claim 3 (depends on 1)

The drive according to claim 1, wherein the pulse-rate modifier is a frequency divider.

### Claim 4 (depends on 1)

The drive according to claim 1, wherein the pulse-rate modifier is an electronic controller.

### Claim 5 (depends on 1)

A displacement device comprising a component for a motor-vehicle accessory and a support, wherein the component can be moved relative to the support by a drive according to claim 1.

### Claim 6 (depends on 1)

A head restraint with a head part mounted by at least one support rod in at least one bearing on a seat back of a vehicle seat, the head part being displaceable relative to the seat back, wherein
the head part and the seat back form a displacement device for moving the head part relative to the seat back,
the head part is a component and the seat back is a support, and
the head part can be moved relative to the seat back by a drive according to claim 1.