Door-opening/closing apparatus
AssigneeMitsui Mining & Smelting Co., Ltd.
InventorsKoji Chikata, Takuya Kakumae
Life of this patent
Estimating the term…
Abstract
The clutch includes a drive disk, a follower disk and a brake disk. When current flows, the follower disk is connected with the drive disk to transmit a power from a driving unit to a door-opening/closing mechanism. When no current flows, the follower disk is separated from the drive disk to cut off the power transmission from the driving unit to the door-opening/closing mechanism. In a state that the drive disk and the follower disk are separated from each other, the brake disk is connected to the follower disk to brake the door-opening/closing mechanism in the opening direction of the door, and to allow the door-opening/closing mechanism to move in the closing direction of the door.
Claims13
A door-opening/closing apparatus for a vehicle, the vehicle having a body, the body having an opening, the vehicle having a door for closing the opening of the body based on a power of a driving unit, comprising:
- a door-opening/closing mechanism that drives the door in at least one of an opening and closing direction;
- and
- a clutch having a first mechanism to flow an electric current and a second mechanism to any one of transmit and not transmit the power of the driving unit to the door-opening/closing mechanism based on whether the electric current is flowing in the first mechanism, wherein
- when the electric current flows in the first mechanism, the second mechanism transmits the power of the driving unit to the door-opening/closing mechanism so that the door can be any one of opened and closed, and
- when no electric current flows in the first mechanism, the second mechanism does not transmit the power of the driving unit to the door-opening/closing mechanism so that the door cannot be opened but can be closed.
Dependencies are inferred from the claim text.