Abstract: A multi-cylinder type injection molding apparatus comprises a shifting table that can be moved toward a fixed head supporting a mold and having a plurality of sprues. The apparatus includes a plurality of injection cylinders mounted on the shifting table that can be moved to a direction orthogonal to the moving direction of the shifting table by a ball screw mechanism, a servo motor, and a numerical control to align the nozzle portions of the injection cylinders with the sprues. The apparatus also includes a mechanism for injecting molten molding material from the injection cylinders into the sprues. In one embodiment of the apparatus, the injecting conditions of each injection cylinder is controlled independently.

Abstract: A device for tightening a coil on a cylindrical body. The device has a first anchor for connecting one end of the heater coil to the cylindrical body, and a second anchor for connecting the second end of the coil to a rotatable ring on the cylindrical which forms a passageway between an injector and a mold in an injection molding apparatus. A threaded portion is arranged on the rotatable ring so that it engages directly with the cylindrical body or with a stationary ring member on the cylindrical body in a manner similar to a worm gear mechanism. Due to the rotation of the threaded member, a force is generated to stretch the coil, thus bringing the coil into positive contact with the surface of the cylindrical body along the entire length of the coil.

Abstract: A heater device for tightening a coil on a cylindrical body which forms a passageway between an injector and a mold in an injection molding apparatus. The device has a first anchor for connecting one end of the coil to the cylindrical body, and a second anchor for connecting the second end of the coil to a rotatable ring on the cylindrical body. A threaded portion is arranged on the rotatable ring so that it engages directly with the cylindrical body or with a stationary ring member on the cylindrical body in a manner similar to a worm gear mechanism. Due to the rotation of the threaded member, a force is generated to stretch the coil, thus bringing the coil into positive contact with the surface of the cylindrical body along the entire length of the coil.

Abstract: The invention represents an auto bumper with an exterior part which can be seen from the outside. The exterior part is made of stainless steel plate and an interior part is made of fiber reinforced plastics via a layer of aluminum or aluminum alloy.

Abstract: The invention represents an auto bumper with an exterior part which can be seen from the outside. The exterior part is made of stainless steel plate and an interior part is made of fiber reinforced plastics via a layer of aluminum or aluminum alloy.

Abstract: Apparatus and method for local forced heating of an auto body characterized in that a joint build up with plastic solder on the steel plate of an auto body is placed under a hood which locally covers the joint; then a hot air blast is supplied to the hood. The hot air blast is evenly diffused by means of a stream-rectifying plate installed in the hood, and thus the built up plastic solder can be hardened through local forced heating.

Abstract: A blow-by gas recirculating device includes an inlet pipe in communication with the intake passage for an automobile engine, and a heat-insulating member. Particularly, the inlet pipe communicates between a blow-by gas producing source and a heat-insulating member positioned between a carburetor and an intake manifold, all forming part of an intake system for the engine. The heat-insulating member has two intake through-holes which form part of the intake passage for the engine and an inlet-pipe-admitting hole which extends from the outer side-surface of the member to the peripheral surface of one of the intake through-holes. The inlet pipe, one end of which is disposed in the inlet-pipe-admitting hole, has an average coefficient of linear expansion of no less than 16.7.times.10.sup.-6 /deg. in a temperature range of -20.degree. to 200.degree. C., and a modulus of longitudinal elasticity of no more than 12980 kg/mm.sup.2.