Electric device for opening or shutting automative doors
First Claim
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1. An apparatus for opening and closing vehicle doors, comprising in combination:
- a means for opening a door lock;
a means for moving a vehicle door;
said means for moving being mounted in a vehicle door;
said means for operating a door lock being mounted in the door;
said means for moving the door including a rack member;
said rack member having a pinned end and a free end;
said pinned end being pinned to a frame which does not move with the door;
said means for moving the vehicle door including an electrically operated motor connected to said rack;
said motor being fixed to the door;
said motor having an output gear which is in toothed engagement with said rack;
a means for retaining said rack in engagement with said gear during angular motion of said rack relative to said motor;
a control means for controlling operation of said motor and operation of said door lock;
said control means having 3 states;
in a first state, power is supplied to said means for controlling said door lock to open said door lock;
an electromagnetically operated clutch connected to said motor to transmit rotary motion from said motor to said output gear only when said clutch is energized;
in said first state, said control means also supplying power to said motor and to said clutch, whereby said motor operates in a forward direction to cause opening of the vehicle door;
in a second state, said control means cuts off power to said motor, said clutch, and said means for operating said door lock;
in a third state, said control means supplying power of a reversed polarity to said motor;
said control means in said third state supplying power to said clutch but not to said means for opening said door lock;
whereby said reversed polarity causes reversed movement of said motor to cause closing of the vehicle door;
in said second state, said clutch is disengaged from said output gear so as to permit manual operation of the vehicle door.
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Abstract
This invention concerns about an electric device for opening or shutting automotive doors, which comprises a transmitting device controlling opening or shutting the door and an electromagnetic coil controlling the door lock. The transmitting device uses a motor and an electromagnetic clutch which are able to operate to open or close the door by pushing of a rack and attain the aim of automatically controlling the opening or closing of the door.
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Citations
2 Claims
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1. An apparatus for opening and closing vehicle doors, comprising in combination:
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a means for opening a door lock; a means for moving a vehicle door; said means for moving being mounted in a vehicle door; said means for operating a door lock being mounted in the door; said means for moving the door including a rack member; said rack member having a pinned end and a free end; said pinned end being pinned to a frame which does not move with the door; said means for moving the vehicle door including an electrically operated motor connected to said rack;
said motor being fixed to the door;said motor having an output gear which is in toothed engagement with said rack; a means for retaining said rack in engagement with said gear during angular motion of said rack relative to said motor; a control means for controlling operation of said motor and operation of said door lock; said control means having 3 states;
in a first state, power is supplied to said means for controlling said door lock to open said door lock;an electromagnetically operated clutch connected to said motor to transmit rotary motion from said motor to said output gear only when said clutch is energized; in said first state, said control means also supplying power to said motor and to said clutch, whereby said motor operates in a forward direction to cause opening of the vehicle door; in a second state, said control means cuts off power to said motor, said clutch, and said means for operating said door lock; in a third state, said control means supplying power of a reversed polarity to said motor;
said control means in said third state supplying power to said clutch but not to said means for opening said door lock;
whereby said reversed polarity causes reversed movement of said motor to cause closing of the vehicle door;in said second state, said clutch is disengaged from said output gear so as to permit manual operation of the vehicle door. - View Dependent Claims (2)
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Specification