Abstract: A carrying in-and-out device is provided with four posts which are disposed in a distributive arrangement. The provision of the four posts ensures sufficient strength of the device even if the posts are formed thin, and the distributive disposition of the posts minimizes the turbulence and swirls of clean air to be caused when the clean air collides with the posts. As a result, there is little agitation of dust particles inside a passage. The dust particles are carried along without being scattered, and thus, loads can be prevented from adhering to the dust particles. Dust particles produced in an upper frame are sucked by upper fans and then discharged into the posts. The dust particles on the posts are further sucked by lower fans to be discharged downward.

Abstract: A transport system installed in a cleanroom where clean air is caused to flow from a ceiling toward a floor. The transport system includes a vehicle for transporting loads, and a guide rail suspended from the ceiling to guide the vehicle. The vehicle has a main body for running along the guide rail, a load supporting deck disposed over the main body, and connecting members for interconnecting the main body and load supporting deck. The guide rail is enclosed in a tubular cover defining an opening extending longitudinally of the guide rail for receiving the connecting members. The cover has a substantially streamline configuration with respect to the direction of clean air flows.

Abstract: Matching mounting holes 25 and 85 are bored into the shoe web 22 of one brake shoe 20 and the base end 81 of the temperature sensor 80 respectively, and a clip is inserted through both holes, thereby biasing the temperature sensor in the direction towards the surface of the shoe web and into the detector hole 24, and elastically affixing the temperature sensor to the shoe web. This enables simple insertion and removal of the temperature sensor and regulates the blind movement of the temperature sensor in an automatic shoe clearance adjustment device.

Abstract: A door mechanism for a cassette insertion opening in an audio device comprises an inner door pivotally supported along one edge of the cassette insertion opening; an outer door pivotally supported along the opposite edge of the cassette insertion opening and having depressions formed along the edge remote from the pivotal axle and a packing member attached to the periphery of the inner face for forcible contact with the wall surrounding the cassette insertion opening; lock means consisting of lock arms engageable with the depressions of the outer door when the outer door is closed and unlocking arms actuated by the inner door when the inner door is fully opened, the lock means being always biased to the position for locking the outer door and being rotated to the unlocking position upon the actuation of the unlocking arms by the fully opened inner door and upon an operation of a door opening button provided on a front panel of the audio device, for example.