Tokyo Shibaura Denki Kabushiki Kaisha

Nissan Motor Company Limited

Japanese National Railways

Hiroshi Yamashita

Seiichi Yanagida

Hiroshi Takano

Fumio Izawa

Yujiro Ohara

Morio Akino

Takehiko Iwahana

Atsushi Hayata

Shunsuke Fujiwara

A bevel gear has a radius of curvature R of a fillet curve provided between a tooth flank A and a bottom land B gradually increasing from a small-diameter end D to a large-diameter end D

Bevel gear

A recording and/or reproduction apparatus for an endless tape which includes a hollow fixed reel, the outer wall of which is wound with an endless tape which is conducted from the innermost portion and wound onto the outermost side a head mechanism for scanning the thus guided tape, a pinch roller and capstan which are driven with the tape held therebetween thereby causing the tape to be slackened downstream of the capstan, a swingable arm which releases the pinch roller from the capstan before its rotation is brought to an end, and a guide pin for releasing the tape from the head mechanism, capstan and pinch roller.

Recording-reproduction apparatus for an endless tape

An endless tape cassette including a stationary reel having a slit communicating the inner and outer peripheral sides and carrying an endless tape wound on the outer periphery, guide plates for guiding the endless tape wound on the stationary reel such that it is pulled out from the inner periphery of the tape roll through the slit and taken up on the outer periphery of the tape reel, and a housing accommodating and supporting the stationary reel and guide plates. The housing includes a bottom plate formed with an opening for permitting a tape drive mechanism to be inserted therethrough into housing for operative coupling to said endless tape, a top plate facing said bottom plate, a pair of side plates, a front end plate and a rear end plate. A flexible lid member is provided on the housing to be movable between a first position at which it extends along the bottom plate for closing the opening in the bottom plate and a second position at which it extends along the top plate for opening the opening in the bottom plate.

Fixed reel type endless tape cassette

In an induced repulsion type magnetic suspension system for a railway vehicle, superconductive magnets of opposite polarities are alternately set at specific intervals in the longitudinal direction of vehicle, while in the longitudinal direction of the track conductive loop coils or conductive sheets are continuously set at specific intervals, whereby the repulsion due to the eddy current caused by a voltage induced in said conductive loop coils or conductive sheets by the superconductive magnets and said superconductive magnets levitates the vehicle. In this invention, an additional source to produce a magnetic field of the same polarity is provided on the vehicle; and thereby a magnetic flux with the same period as the vehicle vibration is applied which intersects said conductive loop coils or conductive sheets on the ground when the vehicle vibrates. Thus an induced current is produced by the magnetic flux and, using the magnetic force developed by this induced current and the magnetic source of the same polarity, the vibration of the running vehicle can be damped.

Vehicle vibration damping method in the induced repulsion type

Growing community of inventors

Yokohama, Japan

Hiroshi Yamashita