Seat belt retractor, seat belt apparatus, and seat belt winding method
A winding device and seat belt technology, which is applied in the direction of car seat belts, semi-passive seat belt systems, belt tighteners, etc., can solve the problems of unsightly appearance and hindering occupants from getting on the car, so as to improve reliability and restrain motor driving effect
Inactive Publication Date: 2008-10-01
JOYSON SAFETY SYST JAPAN KK
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[0027] One embodiment of the seat belt take-up device according to the present invention will be described below with reference to the drawings.
[0028] FIG. 1 is a schematic diagram of a configuration example of a seat belt device including a seat belt take-up device according to an embodiment of the present invention. The safety belt device is installed on the seat of the vehicle. As shown in the figure, it has: safety belt winding device 1, safety belt 2, guide holder 3, safety belt holder 4, tongue plate 5, belt buckle 6, Door switch sensor 7.
[0029] The seat belt take-up device 1 is a device for winding the seat belt 2 by power of an electric motor, and is fixed inside a side surface of a vehicle body or the like. One end of the seat belt 2 is mounted on the seat belt retractor 1 , and the other end is mounted on a seat belt anchor 4 fixed near the seat belt retractor 1 via a guide holder 3 provided near the upper part of the center pillar.
[0030] On the seat belt ...
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The present invention provides a seat belt retractor, seat belt apparatus, and seat belt winding method, which has improved reliability of the seat belt winding-up performance and still can reduce the frequency of unnecessary actuations of a motor; the seat belt retractor of the present invention comprises a control unit (123) which stops actuation of the motor when an overload of the motor is detected during the winding-up of a seat belt and restarts the actuation of the motor after a lapse of a predetermined time period. The control unit (123) comprises a getting-on / off action detecting section (401) which detects an action of an occupant for getting on or off a vehicle and a retry determining section (405) which determines, using criteria, whether or not it is required to restart the actuation of the motor which is stopped by detection of the overload; the criteria for the case that the occupant gets on the vehicle and for the case that the occupant gets off the vehicle are different from each other. The criteria are provided such that the retry determining section (405) likely determines that it is not required to restart the actuation of the motor in the case that the occupant gets on the vehicle as compared to the case that the occupant gets off the vehicle.
Description
technical field [0001] The invention relates to a seat belt winding technology, in particular to a seat belt winding device for winding a seat belt by a motor, a seat belt device with the seat belt winding device and a safety belt winding device for a motor Seat belt winding method. Background technique [0002] Vehicles such as automobiles are equipped with seat belt devices for holding occupants on seats. The seat belt device is composed of a seat belt (also called webbing), a buckle, a tongue plate, a retractor, and the like. [0003] Among them, the retractor is a device for winding up a seat belt (seat belt winding device). In addition to the mechanism for rewinding by elastic force, the retractor also has a pretensioning device that activates the piston by gunpowder explosion in emergency situations such as vehicle collisions, and pulls in the seat belt to restrain the occupant on the seat, etc. . And in recent years, there have been electric retractors that have a...
Claims
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Login to View More IPC IPC(8): B60R22/34
CPCB60R22/02B60R2022/029B60R2022/4666
Inventor 高尾雅人田中康二村上大辅
Owner JOYSON SAFETY SYST JAPAN KK