Seatbelt device with locking retractor
First Claim
1. A seatbelt device comprising:
- a retractor which uses a motor for retracting and protracting a webbing that secures a passenger to a seat; and
a controller for rotating said motor in order to at least retract said webbing;
wherein said retractor comprises;
a reel to which said webbing is wrapped around;
a motor for rotating said reel via a power transmitting mechanism;
a rotation detection element for detecting the rotation of said reel;
a locking mechanism for locking the rotation of said reel in emergency situations, wherein, when said controller does not detect the rotation of said reel after supplying drive signals to said motor, said controller supplies a signal for activating said locking mechanism.
2 Assignments
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Accused Products
Abstract
Provided is a seatbelt device capable of realizing a comfortable seatbelt-wearing environment as well as appropriately securing and protecting a passenger. The seatbelt device is further capable of realizing an immediate escape or rescue of a passenger after a vehicle accident, thereby providing extra safety and a swift escape by protracting the webbing in accordance with the state of the vehicle accident. This seatbelt device is provided with a retractor which uses a motor for retracting and protracting the webbing that secures a passenger to his/her seat, and a controller for rotating the motor and at least retracting the webbing. The controller is capable of altering the protraction mode of the webbing in accordance with the state of the webbing fastened by the passenger.
61 Citations
6 Claims
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1. A seatbelt device comprising:
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a retractor which uses a motor for retracting and protracting a webbing that secures a passenger to a seat; and
a controller for rotating said motor in order to at least retract said webbing;
wherein said retractor comprises;
a reel to which said webbing is wrapped around;
a motor for rotating said reel via a power transmitting mechanism;
a rotation detection element for detecting the rotation of said reel;
a locking mechanism for locking the rotation of said reel in emergency situations, wherein, when said controller does not detect the rotation of said reel after supplying drive signals to said motor, said controller supplies a signal for activating said locking mechanism. - View Dependent Claims (2, 3, 4, 5, 6)
a mechanical urging element for providing a mechanical urge to said actuator in order to activate said locking mechanism; and
an electromagnetic force generating element for generating electromagnetic force which suppresses said mechanical urge.
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6. A seatbelt device according to claim 1, wherein said rotation detection element is a potential meter interlocked with said reel.
Specification