Sugatsune Kogyo Co., Ltd.

Mitsuru Sugiura

Kazuyoshi Oshima

Kazuaki Kashiwaguma

Koushi Yamaguchi

Tadashi Iijima

Masaya Suzuki

Disclosed is a door device that can ensure necessary catch function and/or assist function and give a neat impression is provided. The hinge includes a first part to be attached to a main body and a second part to be attached to a door. The door device includes a base, an arm rotatably supported on the base and a spring for applying torque to the arm in the closing direction and/or in the opening direction thereof. The base of the door device is attached to the first part of the hinge.

Door device

Stay for furniture

The inner surface of one side section of a frame has the base-end section of a rotation arm of a rotation-biasing element that is rotatable. A roller is provided on the tip-end section of the rotation arm. The roller is pressed against and contacts the rear surface of a door as a result of the biasing by the rotation-biasing element. The rear surface of the door is equipped with a damper element. The damper element has a contact member for pressing against and contacting the roller when the door is in the closed position or in a prescribed intermediate position. The contact member minimizes the speed at which the roller moves forward.

Opening and closing device

Hinge for furniture

Provided is a door opening and closing device wherein the device width can be made small and wherein the movement of a retraction arm can be stabilized. In a body case () which is slender and extends in one direction, there is provided an arm block () for a retraction arm () which rotates from the open state to the closed state. On one side of the body case (), there is provided a first slider () which, being interlocked with the rotation of the arm block (), makes linear movements in one direction. In the body case (), there is provided an arm shaft () which serves as the center of rotation of the arm block (). A second slider () which, being interlocked with the rotation of the arm block (), makes linear movements in one direction, is provided opposite the first slider (), in such a way as to have the arm shaft () held between the first and second sliders (). On one side of the body case (), there is provided a force applying member () which applies force on the first slider () in one direction. On the opposite side of the body case (), there is provided a damper which resists the linear movement of the second slider ().

Door opening and closing device

Door closer

Growing community of inventors

Tokyo, Japan

Mitsuru Sugiura