Mitsubishi Heavy Industries Limited

Mitsui Kinzoku Act Corporation

Yohei Tsuchiya

Chenming Zhang

Minetaka Katagawa

Takahiro Igawa

An actuator device includes: a meshing unit configured to mesh with and release a striker, the meshing unit including a latch; an actuator unit including a motor; an output lever configured to rotate to transmit driving force of the motor in the actuator unit to the meshing unit to drive the meshing unit; and a support member both ends of which are coupled to the meshing unit, the support member being configured to support the actuator unit, wherein the output lever is separated from the support member when viewed from an approaching/separating direction of the striker with respect to the meshing unit.

Actuator device

A length measuring jig measures the length of a tubular stud bolt with a central hole defined axially therethrough while the tubular stud bolt remains mounted on a target product such as a steam turbine casing. The length measuring jig includes a rod to be inserted into the central hole in the stud bolt, a first jaw provided on a tip end of the rod for abutting against an end face of the one side in longitudinal direction of the stud bolt, a slider on which the rod is slidably supported, a second jaw provided on the slider for abutting against an end face of the other side in longitudinal direction of the stud bolt, and a cap to be fitted in the central hole in the stud bolt and having a slit defined therein for allowing the rod to extend therethrough. The first jaw has an overall length smaller than a diameter of a minimum-diameter portion of the central hole in the stud bolt. The cap has an inner wall surface defining an end of the slit in the cap, and a distance to the inner wall surface from a central axis of the stud bolt is equal to a radius of the minimum-diameter portion of the central hole in a state in which the cap is fitted in the central hole in the stud bolt.

Jig for and method of measuring length of stud bolt

A positioning method of an arc-like member according to at least one embodiment of the present invention includes a step of moving a protruding part disposed at a circumferential end of the arc-like member in a radial direction with respect to a reference member positioned on a radially outer side as viewed from the circumferential end of the arc-like member. In the step of moving the protruding part, a wall portion is arranged on a radially outer side or a radially inner side with respect to the reference member, a jack is arranged between the wall portion and the reference member, and the jack is operated to move the protruding part with respect to the reference member by the pressing piece mounted on the wall portion via a rod.

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Kanagawa, Japan

Yohei Tsuchiya