Seatbelt retractor and seatbelt device
First Claim
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1. A seatbelt retractor comprising:
- a spool for winding a seatbelt,a motor for generating rotational torque to rotate the spool,a power transmission path situated between spool and the motor,a clutch mechanism attached to the power transmission path for allowing the power transmission path to transmit the rotational torque of the motor to the spool in a connected mode, and for prohibiting the power transmission path to transmit the rotational torque to the spool in a disconnected mode,a clutch mechanism disconnection detecting device for detecting disconnection of the clutch mechanism, anda motor control device connected to the motor for stopping the motor according to a clutch disconnection signal from the clutch mechanism disconnection detecting device.
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Abstract
A seatbelt retractor includes a spool for winding a seatbelt, a motor for generating rotational torque to rotate the spool, a clutch mechanism for connecting a power transmission path to transmit rotational torque of the motor to the spool in a connected mode and for disconnecting the power transmission path in a disconnected mode, and a clutch mechanism disconnection detecting device for detecting disconnection of the clutch mechanism. A motor control device stops the motor according to a detection signal from the clutch mechanism disconnection detecting device.
27 Citations
14 Claims
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1. A seatbelt retractor comprising:
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a spool for winding a seatbelt, a motor for generating rotational torque to rotate the spool, a power transmission path situated between spool and the motor, a clutch mechanism attached to the power transmission path for allowing the power transmission path to transmit the rotational torque of the motor to the spool in a connected mode, and for prohibiting the power transmission path to transmit the rotational torque to the spool in a disconnected mode, a clutch mechanism disconnection detecting device for detecting disconnection of the clutch mechanism, and a motor control device connected to the motor for stopping the motor according to a clutch disconnection signal from the clutch mechanism disconnection detecting device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification