Maeda Metal Industries, Ltd.

Exedy Corporation

Kabushiki Kaisha Daikin Seisakusho

Seiji Ikeda

Takao Fukunaga

Katsuyuki Ono

Takeo Shimizu

Shinji Fukuhara

Shozo Matsumura

An elastic member made of, for instance, a rubber material, is fixed to a piston member of a lockup clutch. A wet friction facing is fixed to the elastic member. The elastic member provides a cushioning effect when the lockup clutch is engaged for controlled slippage.

Wet friction plate, wet power transmitting and interrupting mechanism,

A device for fastening and loosening threaded members which has a socket mechanism at its forward end for engaging the threaded member and in which the torque of a motor rotatable in one direction is transmitted to the socket mechanism via a rotation transmission route including a planetary gear mechanism, forward-reverse rotation changing assembly and bevel gear mechanism. The bevel gear mechanism comprises a drive bevel gear coupled to the motor, and a pair of driven bevel gears opposed to each other in orthogonal relation to the axis of the drive gear and aligned with the axis of the planetary gear mechanism, the driven bevel gears being in mesh with the drive gear. The rotation changing assembly comprises an output shaft rotatably extending through the driven gears, and engaging means for selectively engaging one of the driven gears with the output shaft for the engaged gear to rotate with the shaft or disengaging the gear from the shaft. The output shaft is coupled to the planetary gear mechanism.

Device for fastening and loosening threaded members

Bolt fastening device

A lock-up device is used for a torque converter comprising a front cover connected to an input-side rotation member, an impeller fixed to the front cover, and a turbine provided opposite to the impeller and connected to an output-side member. This lock-up device comprises a plate member and a piston. The above described plate member is connected to the output-side member and located between the turbine and the inner wall of the front cover, and can be brought into contact with the inner wall of the front cover. The above described piston which is connected to the front cover so as not to be relatively rotatable is for pressing the plate member against the inner wall of the front cover.

Lock-up device for torque converter

A bolt tightening device comprising a main body including a tubular case and a cylindrical housing attached to the base end of the tubular case approximately at a right angle therewith, the case being provided with an outer socket for a nut to fit in and an inner socket for fitting the tip of a bolt therein, a main handle fixed to the main body, and an auxiliary handle attached to the main body and having a grip approximately parallel to the cylindrical housing. The auxiliary handle is withdrawable from the housing toward the sockets and detachably engageable with positioning portions provided in or on the main body to clamp the main body when in a withdrawn position and in a pushed-in position.

Bolt tightening device having auxiliary handle

Power wrench

A device for fastening a bolt having a tip to be sheared therefrom comprises an outer socket engageable with a nut on the bolt, an inner socket engageable with the tip and retractably disposed in the outer socket, and stoppers provided between the inner socket and the outer socket for preventing the inner socket from retraction. When the tip is properly fitted into the inner socket, the stoppers are disengaged to permit the retraction of the inner socket and render the nut fittable in the outer socket.

Growing community of inventors

Osaka, Japan

Seiji Ikeda