Reclining seat device for motor car
First Claim
1. Device for setting a seat back at a desired angular position relative to a seat cushion to which said seat back is pivotably connected, said seat back and said seat cushion forming a seat, comprising:
- a. a base plate secured to a side surface of said seat cushion, said base plate having a fixed shaft,b. an arm member including a base portion pivotably mounted on said shaft, and an arm portion integral with said base portion and fixed to the side surface of said seat back,c. a spring means for biasing said arm member forwardly about said shaft,d. means for normally locking said arm member to said base plate, ande. means for unlocking said arm member from said base plate, said unlocking means including a forward release lever pivotably supported by said shaft at the base portion of said forward lever,said locking means including two substantially ringed bodies secured to said arm member and said base plate, respectively, and concentric with said fixed shaft of said base plate, said two ringed bodies having serrations tapered axially on the internal surfaces thereof, respectively, said locking means comprising a locking member adapted to move axially and engage with the internal openings of said ringed bodies, said locking member having a complementary serration provided through and on the outer circumference thereof, and a spring means disposed on the side of the greater diameter end surface of said locking member for pushing said locking member axially to engage with said two ringed bodies respectively.
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Accused Products
Abstract
A reclining seat device including a fixed seat cushion base having a horizontal shaft and a seat back arm supported upon said base so as to be rotatable around the horizontal shaft. The seat back arm and the base are respectively provided with serrations, which are connected to each other under normal conditions. A release lever pivotably supported at the horizontal shaft includes means for releasing the connection of said seat back arm with the base when the release lever is turned, whereby the seat back may be rotatable around the horizontal shaft. The release lever is also provided with a return spring, and accordingly by adjusting the seat back at a suitable angle and releasing the release lever, the seat back may be set at a desired angle position.
68 Citations
21 Claims
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1. Device for setting a seat back at a desired angular position relative to a seat cushion to which said seat back is pivotably connected, said seat back and said seat cushion forming a seat, comprising:
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a. a base plate secured to a side surface of said seat cushion, said base plate having a fixed shaft, b. an arm member including a base portion pivotably mounted on said shaft, and an arm portion integral with said base portion and fixed to the side surface of said seat back, c. a spring means for biasing said arm member forwardly about said shaft, d. means for normally locking said arm member to said base plate, and e. means for unlocking said arm member from said base plate, said unlocking means including a forward release lever pivotably supported by said shaft at the base portion of said forward lever, said locking means including two substantially ringed bodies secured to said arm member and said base plate, respectively, and concentric with said fixed shaft of said base plate, said two ringed bodies having serrations tapered axially on the internal surfaces thereof, respectively, said locking means comprising a locking member adapted to move axially and engage with the internal openings of said ringed bodies, said locking member having a complementary serration provided through and on the outer circumference thereof, and a spring means disposed on the side of the greater diameter end surface of said locking member for pushing said locking member axially to engage with said two ringed bodies respectively. - View Dependent Claims (2, 3)
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4. A device for setting a seat back at a desired angular position relative to a seat cushion to which said seat back is pivotably connected, said seat back and said seat cushion forming a seat, comprising:
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a base plate secured to a side surface of said seat cushion, said base plate having a fixed shaft, an arm member including a base portion pivotably mounted on said shaft, and an arm portion integral with said base portion and fixed to the side surface of said seat back, a spring means acting to forwardly incline said arm member about said shaft, means for normally locking said arm member to said base plate, and means for unlocking said arm member from said base plate, said unlocking means including a forward release lever pivotably supported by said shaft at the base portion of said forward lever, the improvement wherein said locking means includes means defining two openings respectively associated with said arm member and said base plate, and concentrically disposed with respect to said fixed shaft of said base plate, said two openings being formed with respect axially tapered serrations, a locking member disposed concentrically with said shaft and adapted to move axially and partially engage said openings, said locking member having a complementary serration on the outer circumference thereof, second spring means disposed on the side of the greater diameter end surface of said locking member for axially pushing said locking member to engage with said two openings respectively, said unlocking means further including a cam member pivotably supported at said shaft of said base plate and having at least one cam surface facing the smaller diameter end surface of the said locking member, a plurality of balls disposed between said smaller diameter end surface of said locking member and said cam surface of said cam member and adapted to be driven by said cam member to push said locking member outwardly against the action of said second spring means to disengage said locking member from said openings. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification