Threebond Co., Ltd.

Toru Shimizu

Nobuhiro Katsuno

Disclosed is an assembly seal for use in assembly comprising: packing formed in a predetermined shape from an elastic material; a core within the packing for providing substantial rigidity such that can maintain the desired shape of the packing; and a base for supporting the core, the base having substantial rigidity and being connected to the core portion in such a manner that the base can be easily separated from the core by a cutting operation. The assembly seal is used in an assembly method for assembling a plurality of parts into a set of assembled parts incorporating packing. The assembly method comprises the steps of: positioning the assembly seal so that the packing of the assembly seal is positioned at a specified position on one part of a set of assembled parts; separating the base of the assembly seal from the packing; removing the base so that only the packing of the assembly seal is left on said one part; and fitting the other parts of said set of assembled parts to said one part.

Sealing material for assembly

A screw-type resin injection apparatus for injection molding which includes a cylinder element having a cylinder chamber for receiving resin therein, and having, at an end portion, a nozzle for injecting the resin. A screw element is arranged within the cylinder chamber in a manner allowing rotation and axial movement. A rotary drive shaft is connected to the screw element telescopically so as to be capable of transmitting a torque. The rotary drive shaft is rotatively driven by a motor. A fluid pressure cylinder unit is arranged laterally of the cylinder element in parallel relation thereto. The fluid pressure cylinder unit is rotatably engaged with the screw element to drive the screw axially. Preferably, the screw element is provided with a mixing screw portion which has a screw groove small in pitch and large in lead angle and an axial groove extending axially.

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Hachioji, Japan

Toru Shimizu