Kayaba Industry Company, Ltd.

Oiles Corporation

Kyb-ys Co., Ltd.

Takashi Asa

Yasushi Saitou

Hiroshi Murota

Masayuki Kohama

Yasushi Saito

Kiyomi Morino

Mitsuhiro Hasegawa

Hideaki Shinyashiki

Takumi Katayama

A gas spring includes a rod body that has a base end side movable into and out of a cylinder body. The rod body is urged in a direction outward of the cylinder body by pressure from a gas sealed inside the cylinder body. A cylindrical cover body includes a base end portion connected to a distal end portion of the rod body that projects outside of the cylinder body. An end portion of the cover body receives a head end portion of the cylinder body inside a cylindrical cover member at an end portion of the cylinder body. The cover member covers a portion of the spring that would otherwise be exposed to the air between the end portion of the cover body and the end portion of the cylinder body when the cylinder body is contracted inside the cover body.

Gas spring

A stay damper comprises a cylinder () in which a gas is charged, a piston rod () which projects under a pressure of the gas in the cylinder (), and a stopper () which locks contraction of the piston rod () in an elongated position. The stopper () displaces between a lock position which locks contraction of the piston rod () and a release position which permits contraction of the piston rod () according to directional operation forces applied by an operator. The stopper () comprises a restricting member () which holds the stopper () in the lock position when it is in the lock position and holds the stopper () in the release position when it is in the release position. Since the locking operation of the stopper () is performed manually, the releasing operation thereof is easily understood by the operator.

Stay damper

A gas spring () comprises a piston rod () projecting from an open end of a cylinder () so as to be able to elongate and contract axially, and a dust seal () which is in contact with the piston rod () to prevent dust from invading the cylinder (). By fitting a seal protecting member () to the open end of the cylinder () to shield the dust seal () from exposure to the outside of the cylinder (), protection of the dust seal () from deterioration and damage is enhanced.

Bearing device of piston rod

Growing community of inventors

Tokyo, Japan

Takashi Asa