Electric seatback-folding device for emergency escape
AssigneeHyundai Transys Inc.
InventorsSang Min Kim, Jung Bin Lee, Byung Mo Kim, Jun Kyu Kim, Jae Sung Lee
Life of this patent
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Abstract
An electric seatback-folding device for emergency escape enables a controller to accurately recognize whether a seatback (or a seatback frame) is in a locked state or an unlocked state using a microswitch. Folding of the seatback for emergency escape is smoothly performed without malfunction or a control error by operation of a motor in response to a current control signal of the controller.
Claims12
An electric seatback-folding device for emergency escape, the electric seatback-folding device comprising:
- a lever rotatably mounted to an outer surface of one of side frames of a seat cushion and including a rotational force transmission bar, a first pull bar, and a second pull bar, which are spaced apart from each other at predetermined angles;
- a seatback frame rotatably connected to the side frames via a shaft;
- a motor mounted to the seatback frame and configured to output rotational power to the shaft;
- a seatback-locking device mounted to the side frames and the seatback frame and configured to unlock the seatback frame when the lever is operated in an unlocking direction or to lock the seatback frame when the lever is moved in a locking direction, the seatback-locking device further including a cable and a strap connected to a first pull bar of the lever so as to be manually operable by an occupant seated in a rear seat;
- a switch mounted to one of the side frames and configured to output an on signal or an off signal depending on respectively whether or not contact is made between the switch and the lever;
- and
- control circuitry configured to interrupt application of a current signal to the motor upon receiving the on signal from the switch and to apply the current signal to the motor upon receiving the off signal from the switch,
- wherein the second pull bar is connected to one end of the cable of the seatback-locking device.
An electric seatback-folding device for emergency escape, the electric seatback-folding device comprising:
- a lever rotatably mounted to an outer surface of one of side frames of a seat cushion and including a first pull bar, and a second pull bar spaced apart from each other at a predetermined angle;
- a seatback frame rotatably connected to the side frames via a shaft;
- a motor mounted to the seatback frame and configured to output rotational power to the shaft;
- a seatback-locking device mounted to the side frames and the seatback frame and configured to unlock the seatback frame when the lever is operated in an unlocking direction or to lock the seatback frame when the lever is moved in a locking direction, the seatback-locking device further including a cable and a strap, one end of the cable of the seatback-locking device connected to the second pull bar, the strap connected to the first pull bar so as to be manually operable by a rearwardly located occupant;
- a switch mounted to one of the side frames and configured to output an on signal or an off signal depending on respectively whether or not contact is made between the switch and the lever;
- and
- control circuitry configured to interrupt application of a current signal to the motor upon receiving the on signal from the switch and to apply the current signal to the motor upon receiving the off signal from the switch.
Dependencies are inferred from the claim text.