Hitachi, Ltd.

Hitachi Automotive Engineering Co., Ltd.

Yasuhiro Hashiguchi

Noboru Katohno

Yoshihiro Shibata

Masaki Yono

Noboru Katono

Kazumasa Inami

Masabumi Katsunuma

A take-up pulley is provided with a power input member and a power output member which are radially divided, both of the members being engaged with each other over their peripheral surfaces. An elastic force of an annular elastic member acts on the engagement portion between both the power output member and the power input member in the peripheral direction in order to obtain a predetermined frictional engagement force between the power input member and the power output member.

Take-up pulley with torque-limiting mechanism for magnetic recording and

A magnetic tape guide mechanism for a magnetic recording/reproducing apparatus which includes a base having a large-inner-diameter hole with a larger inner diameter than a shaft hole, and a resilient synthetic resin member located in the large-inner-diameter hole and surrounding the shaft of a tape guide. As a result, a horizontally extended threaded hole and fixing screw conventionally required are eliminated and the overall construction is simplified. Moreover, the adjustment work is facilitated and the overall production cost of the components are substantially reduced.

Magnetic tape guide mechanism for magnetic recording/reproducing

A magnetic recording and reproducing apparatus, wherein a rotor device is arranged in such a manner that one end of an orbiting or rotating shaft which is integral with the rotor is inserted in an opening portion of a main base plate of the apparatus, while the other end of the shaft is inserted in an opening portion of a sub-base plate opposite to the main base plate, and preferably, a plurality of such rotor devices are provided in series and engage with one another to thereby perform predetermined operations. With this construction, the number of components and the manufacturing cost can be reduced, and also, the expense for building sub-assemblies can be saved.

Magnetic recording and reproducing apparatus

A cassette loading device, wherein, when a rack, formed on a tray supporting a holder for holding a cassette, comes out of mesh with a pinion gear serving as a drive source, the tray itself is engaged with the pinion gear, so that the pinion gear urges the tray, thereby transferring the tray to a position of completion of its horizontal transfer thereby enabling the cassette to be transferred in a stable manner.

Cassette loading device for enabling horizontal transfer of the cassette

Grooves are formed on the armor portion of a magnetic head. Elastic pieces having nails for linking to the grooves of the head, and a concave portion for positioning the head are integrally molded with a mounting arm for mounting the head. Linkage of the head to the mounting arm is achieved by the linkage of the elastic pieces to the grooves.

Retaining device for a magnetic head

A cassette loading mechanism of a magnetic recording and/or reproducing apparatus including: a cassette holder for accommodating a tape cassette; a bracket having a guide slit along which the cassette holder is guided from a first position to a second position, the bracket accommodating the cassette holder; a cassette holder driving mechanism for driving the cassette holder along the guide slit formed in the bracket, the cassette holder driving mechanism including cassette holder driving arm disposed between the cassette holder and the bracket and connected to the cassette holder; a power source; and a power transmitting means for driving the cassette holder driving arm while being supplied with power from the power source.

Cassette loading mechanism of magnetic recording and/or reproducing

In a cassette loading apparatus for a video tape recorder equipped with a front loading mechanism, bearing portions of a worm are disposed at predetermined positions in side brackets for supporting a cassette holder which have L-shaped guide holes for guiding the support shaft of the cassette holder in both horizontal and vertical directions, a reference hole is bored on the base of the video tape recorder, a shaft of the worm is inserted through the bearing portions and the reference hole, and the worm shaft keeps constant the axial distance between gears for a cassette loading mechanism and a driving gear for driving the video tape recorder.

Growing community of inventors

Mito, Japan

Yasuhiro Hashiguchi