Honda Giken Kogyo Kabushiki Kaisha

Toshikazu Asakura

Shigeo Kobayashi

Akira Takeshima

Akihiko Takahashi

Shoichi Hayashi

Takaji Mukumoto

Hirobumi Morita

Hisaya Watanabe

Yasuto Watanabe

Ryoji Ueda

Kaname Kasai

A forward-moving inching unit and a backward-moving inching unit are built in a casing (1) which is slidable relative to a guide member (b). Each of the inching units is made up of an inching piston (60), a brake piston (61) disposed in a direction opposite to the inching piston (60), a lock member (62) disposed between the inching piston (60) and the brake piston (61) to tighten the guide member (b) when pinched between both the pistons (60, 61), a spring (63) for urging the pistons (61) to the right/to the left, a first pressure chamber (64) for pressing the brake piston (61) to the right/to the left, a second pressure chamber (65) for pressing the inching piston (60) in the opposite direction, and a valve block (2) for inputting, at the time of forward-moving inching, a fluid pressure into the second pressure chamber (65) of the forward-moving inching unit and the first pressure chamber (64) of the backward-moving inching unit and for inputting, at the time of backward-moving inching, the fluid pressure into the second pressure chamber (65) of the backward-moving inching unit and the first pressure chamber (64) of the forward-moving inching unit.

Inchworm type of actuator

A nut runner control system includes a plurality of nut runners, a plurality of subcontrollers connected to the nut runners, respectively, for controlling the nut runners, and a master controller connected to the subcontrollers for presetting and modifying drive conditions for the nut runners and for monitoring the nut runners based on data indicating operating conditions of the nut runners and received through the subcontrollers, respectively.

Nut runner control system and method of monitoring nut runners

The output shaft of a nut runner for tightening a fastener such as a bolt is first rotated with a first torque at a first speed. When the tightening torque of the output shaft reaches a preset switching torque, the first torque first speed rotation of the output shaft is interrupted, and thereafter the output shaft is rotated with a second torque at a second speed. When the tightening torque then reaches a preset snug torque, the second torque second speed rotation of the output shaft is interrupted, and thereafter the output shaft is rotated with a third torque at a third speed. When the tightening torque reaches a preset final torque, the third torque third speed rotation of the output shaft is stopped, thus completing the tightening of the fastener.

Apparatus for controlling nut runner

Method of and apparatus for controlling nut runner

An apparatus for absorbing oil pressure in an impact tool with an eccentric oil chamber in a rotatable cylinder connected to a drive with a rotor and spindle. Movement of the rotor relative to the oil chamber urges oil into chambers outside of the rotor. A space chamber formed inside of the cylinder communicating with the oil chamber is filled with a soft elastic member such as foam rubber.

Apparatus for absorbing oil pressure in an impact type tool

Growing community of inventors

Sayama, Japan

Toshikazu Asakura