Hirata Corporation

Hiroyuki Shiga

Hisayuki Sueoka

Koji Matsuda

Hitoshi Tsugawa

Yukihiro Kawamoto

Masahiro Koizumi

Susumu Noguchi

Kotaro Takamura

Haruo Oka

A production apparatus for producing a component assembly by sequentially performing predetermined processes in a plurality of processing areas (Ato A) arranged in a ring formation and then, by separating a jig. The apparatus includes a rotational table main body (), a plurality of holding/transfer units () rotatable integrally with the rotational table main body and capable of holding an object and transferring the same onto processing tables in the plurality of processing areas, a plurality of loading portions () provided on the rotational table main body corresponding to the plurality of holding/transfer units and capable of loading the jig, and a plurality of processing units (to) provided for performing predetermined processes in the plurality of processing areas.

Production apparatus

This invention provides a retainer assembling apparatus which assembles a retainer to a valve stem via a cotter which engage with an engaging groove formed on the valve stem. The cotter comprises a pair of cotter segments. The apparatus includes a cylindrical body, a holding portion which holds the retainer contacting a lower end of the cylindrical body, a push-up shaft which pushes up the pair of cotter segments into the cylindrical body, and an axial body which is arranged in the cylindrical body to be coaxial with the push-up shaft and to be coaxially movable. The cylindrical body includes a tapered inner circumferential portion on an inner circumferential wall lower portion thereof.

Retainer assembling apparatus and retainer assembling method

A conveyor device is formed with roller units arranged continuously on conveyor frames ('). Each of the roller units includes a rotating body () having a cylindrical part () rotatably supported around a predetermined axis (A) and being rotationally driven, a roller () rotatably supported by an outer periphery of the cylindrical part to carry an object being conveyed on the outer peripheral surface thereof, a pair of thrust plates () arranged so as to be capable of pressing both side surfaces of the roller while holding the roller therebetween and rotating integrally with the cylindrical part; and a pressing force adjusting mechanism () arranged inside the cylindrical part to adjust a pressing force with which the paired thrust plates press the roller while holding the roller therebetween.

Roller unit and conveyor device

Growing community of inventors

Tokyo, Japan

Hiroyuki Shiga