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US 4,553,625 AGranted
Automobile seat belt system with automatic unlocking function
AssigneeNippon Soken, Inc.
InventorsNoboru Tsuge, Masahiro Taguchi
Life of this patent
Estimating the term…
Abstract
A seat belt system comprising a seat belt retractor, a seat belt, a tongue plate secured at an intermediate position of the seat belt, and a buckle which has a locking function and an unlocking function for the tongue plate. An actuator and its controller are provided for automatically actuating the unlocking function of the buckle.
Claims22
A seat belt system for an automobile, comprising:
- a seat belt retractor anchored to a frame of said automobile;
- a seat belt having one end anchored to said automobile frame and another end secured to said retractor;
- a tongue plate secured at an intermediate position of said seat belt;
- a buckle anchored to said automobile frame, said buckle having a means for locking said tongue plate and a means for unlocking said tongue plate;
- a means for actuating said unlocking means;
- and
- a means for controlling said actuating means wherein
- said locking means comprises a salient portion rotatably supported at one end of said buckle and a spring for pushing said salient portion, said tongue plate having a hole for receiving said salient portion;
- and wherein
- said unlocking means comprises a lever associated with said salient portion, and a slide button having a tapered portion in contact with said lever.
7 more elements
A seat belt system for an automobile, comprising:
- a seat belt retractor anchored to a frame of said automobile;
- a seat belt having one end anchored to said automobile frame and another end secured to said retractor;
- a tongue plate secured at an intermediate position of said seat belt;
- a buckle anchored to said automobile frame, said buckle having a means for locking said tongue plate and a means for unlocking said tongue plate;
- means for selectively actuating said unlocking means;
- and
- means for controlling said actuating means, wherein said controlling means includes a means for detecting whether a brake lever of said automobile is turned on and a means for driving said actuating means to actuate said unlocking means a predetermined time period after said brake lever is turned on.
4 more elements
A seat belt system for an automobile, comprising:
- a seat belt retractor anchored to a frame of said automobile;
- a seat belt having one end anchored to said automobile frame and another end secured to said retractor;
- a tongue plate secured at an intermediate position of said seat belt;
- a buckle anchored to said automobile frame, said buckle having a means for locking said tongue plate and a means for unlocking said tongue plate;
- means for selectively actuating said unlocking means;
- and
- means for controlling said actuating means, wherein said controlling means includes a means for detecting whether a brake lever of said automobile is turned on, and a means for driving said actuating means to actuate said unlocking means when said brake lever is turned on.
4 more elements
A seat belt system for an automobile, comprising:
- a seat belt retractor anchored to a frame of said automobile;
- a seat belt having one end anchored to said automobile frame and another end secured to said retractor;
- a tongue plate secured at an intermediate position of said seat belt;
- a buckle anchored to said automobile frame, said buckle having a means for locking said tongue plate and a means for unlocking said tongue plate;
- means for selectively actuating said unlocking means;
- and
- means for controlling said actuating means, wherein said controlling means includes
- means for detecting whether deceleration of said automobile exceeds a predetermined value,
- means for detecting whether velocity of said automobile is zero, and
- means for driving said actuating means to actuate said unlocking means for a predetermined time period after the deceleration of said automobile exceeds said predetermined value and the velocity of said automobile becomes zero.
7 more elements
A seat belt system for an automobile comprising:
- a seat belt retractor anchored to a frame of said automobile;
- a seat belt having one end anchored to said automobile frame and another end secured to said retractor;
- a tongue plate secured at an intermediate position of said seat belt;
- a buckle anchored to said automobile frame, said buckle having a means for locking said tongue plate and a means for unlocking said tongue plate;
- means for selectively actuating said unlocking means;
- and
- means for controlling said actuator means, wherein
- said locking means comprises a salient portion rotatably supported at one end of said buckle and a spring for pushing said salient portion, said tongue plate having a hole for receiving said salient portion,
- said unlocking means comprises a lever associated with said salient portion, and a slide button having a tapered portion in contact with said lever, and
- said controlling means comprises a cable connected to said slide button and to a brake lever of said automobile.
7 more elements
Dependencies are inferred from the claim text.