Opening and closing device
AssigneeSugatsune Kogyo Co., Ltd.
InventorMitsuru SUGIURA
Life of this patent
Estimating the term…
Abstract
The inner surface of one side section of a frame (1) has the base-end section of a rotation arm (44) of a rotation-biasing means (4) provided so as to be rotatable. A roller (47) is provided on the tip-end section of the rotation arm (44). The roller (47) is pressed against and contacts the rear surface (2a) of a door (2) as a result of the biasing by the rotation-biasing, means (nut illustrated). The rear surface of the door (2) is equipped with a damper means (5). The damper means (5) has a contact member (52) for pressing against and contacting the roller (47) when the door is in the closed position or in a prescribed intermediate position. The contact member (52) minimizes the speed at which the roller (47) moves forward.
Claims5
An opening and closing device comprising:
- a frame;
- a rotating body having one end rotatably connected to the frame between a first position and a second position centered on a first rotating axis line;
- a rotation-biasing means which rotates and biases the rotating body in a first rotating direction from the first position towards the second position;
- and
- a damper means which suppresses the rotational speed of the rotating body when the rotating body rotates in at least one direction of the first rotating direction and a second rotating direction, which is direction opposite the first rotating direction;
- wherein, the rotation-biasing means comprises:
- a rotation arm having a base-end section rotatably provided at one of either the frame or the rotating body centered on a second rotating axis line parallel to the first rotating axis line;
- and
- a rotation and biasing member which rotates and biases the rotation arm, causes a tip-end section of the rotation arm to press against and contact the other of either the frame or the rotating body, and thereby rotates and biases the rotating body in the first rotating direction;
- and
- the second rotating axis line is separated and arranged with respect to the first rotating axis line so as to be orthogonal thereto such that when the rotating body rotates in the first rotating direction, the tip-end section of the rotation arm moves in a direction approaching the first rotating axis line, and when the rotating body rotates in the second rotating direction, the tip-end section of the rotation arm moves linearly along the rotating body in a direction of moving away from the first rotating axis line;
- and
- the damper means comprises:
- a damper body provided at the other of the frame and the rotating body;
- a movable member provided at the damper body so as to be capable of moving linearly in the same direction as the tip-end section of the rotation arm, and associated with the tip-end section of the rotation arm so as to enable relative movement with respect to the damper body in association with movement of the rotation arm;
- and
- a damper mechanism provided between the damper body and the movable member to suppress the movement speed of the movable member to a low speed.
Dependencies are inferred from the claim text.