SEAT BELT RETRACTOR AND SEAT BELT APPARATUS PROVIDED THERWITH

• US 20100140913A1
• Filed: 05/19/2008
• Published: 06/10/2010
• Est. Priority Date: 08/23/2007
• Status: Active Grant

• Current Assignee: Joyson Safety Systems Japan GK
• Original Assignee: Takata Corporation (Ningbo Junsheng Investment Group Co., Ltd.)
• Inventors: Tanaka, Koji, Murakami, Daisuke, Takao, Masato, Inuzuka, Koji
• Granted Patent: US 7,988,197 B2
• Time in Patent Office: Days
• US Class Current: 280/807
• CPC Class Codes: B60R 2022/3402 Retractor casings; Mounting thereof
• CPC Class Codes: B60R 2022/4466 the additional retraction device being an electric actuator
• CPC Class Codes: B60R 2022/4473 using an electric retraction device combined with a spring B60R2022/444, B60R2022/4466
• CPC Class Codes: B60R 22/24 secured to the side, door, or roof of the vehicle
• CPC Class Codes: B60R 22/44 with means for reducing belt tension during use under normal conditions not included in the retractor B60R22/19; B60R22/3405 takes precedence

Abstract

A seat belt retractor (6) according to the present invention, when mounted on a vehicle body, has an ECU (16) laid out in such a manner that an ECU connector (16c) faces a vehicle side connector (18) mounted to a predetermined position of the vehicle body. Such a vehicle side connector (18) is connected to a power supply (17). Such a layout of the ECU (16) allows the ECU connector (16c) to be directly electrically connected to the vehicle side connector (18).

Claims

1. A seat belt retractor comprising at least:

a spool rotatably supported by a frame for taking up a seat belt;

a motor for rotating the spool; and

an electronic control unit for driving and controlling the motor,

wherein the electronic control unit is provided in an integrated manner and, when the seat belt retractor is mounted on a vehicle body, the electronic control unit is disposed in such a manner that an electronic control unit connector of the electronic control unit faces a vehicle side connector that is mounted on the vehicle body and is connected to a power supply.

2. The seat belt retractor according to claim 1, wherein the electronic control unit is formed in the shape of a flat plate and the electronic control unit is horizontally provided on the frame.

3. The seat belt retractor according to claim 1, wherein the electronic control unit is formed in the shape of a flat plate and the electronic control unit is provided on the frame in the vertical direction.

4. A seat belt apparatus comprising at least:

a seat belt retractor that performs at least one of taking up and delivery of a seat belt by causing the motor to rotate the spool;

a tongue slidably supported by the seat belt drawn out of the seat belt retractor; and

a buckle with which the tongue is detachably engaged in which the seat belt restrains an occupant by causing the tongue to be engaged with the buckle,

wherein the seat belt retractor is a seat belt retractor according to claim 1; and

wherein the electronic control unit connector is directly connected to the vehicle side connector.