Hitachi, Ltd.

Hitachi Video Engineering, Incorporated

Hideyuki Kawase

Ikuo Nishida

Masashi Yoshida

Akira Shimizu

Yasuo Otsuka

Takao Terayama

Kazutaka Sato

Seii Miyakawa

Taisaku Seino

Michihiro Watanabe

Kazutoshi Konno

Youichi Narui

Hiromitsu Fukuda

Masahisa Aoyagi

Kazunori Iijima

Katsuo Ohki

Shinichi Hanawa

Tsuguo Suzuki

Kimio Oga

Kazuo Honma

Juichi Morikawa

Makoto Ibe

Masanori Kochi

Hitoshi Okabe

Toshio Osada

Hitoshi Takizawa

Akira Kawauchi

Tadashi Shinoda

Eiichi Hanawa

Tosio Uno

A facsimile apparatus has a lower structure and an upper structure which is swingable between a raised open position an a lowered close position about a pivot located at a lower part of the rear end portion of the apparatus. A thermal print head is fixed to the front end portion of the upper structure. A recording medium conveyor roller is fixed to the front end portion of the lower structure. A linear image sensor and an original sheet conveyor roller are fixed to a central portion of the lower structure. The recording medium is placed on the lower structure at a position between the thermal print head and the linear image sensor.

Facsimile apparatus

A facsimile apparatus has a lower structure and an upper structure which is swingable between a raised open position an a lowered closed position about a pivot located at a lower part of the rear end portion of the apparatus. A thermal print head is fixed to the front end portion of the upper structure. A recording medium conveyor roller is fixed to the front end portion of the lower structure. A linear image sensor and an original sheet conveyor roller are fixed to a central portion of the lower structure. The recording medium is placed on the lower structure at a position between the thermal print head and the linear image sensor.

A magnetic recording and/or reproducing apparatus is disclosed, comprising a rotary head device, in which a magnetic tape is drawn out of a cassette and brought into contact with the rotary head device or the like. A tape draw-out device doubling as a tape guide forms a predetermined tape path and guides the drive of the magnetic tape after drawing out the magnetic tape. The apparatus further requires a fixed magnetic head and other tape guide mechanism which are movably arranged on the path of the tape draw-out device during the apparatus operation for reducing the size thereof. With the tape loading operation, the fixed magnetic head and the other tape guide are moved by a common drive mechanism and held in position by a common stopper.

Apparatus for drawing out tape from a cassette

A rotary magnetic head cylinder device for use in a helical-scanning system video tape recorder has a projection provided on a tape running race of a stationary lower cylinder near a location at which a magnetic tape leaves from the lower cylinder. The projection is preferably integral with the tape running race and has a small area which is defined by a shoulder circumferentially extending identically with a tape guide shoulder contouring the lower edge of the tape running race and which spreads perpendicularly to the tape running race, and an upper surface coplanar with the top face of the lower cylinder, and a height defined by a protruded length radially outwardly toward the outer circumferential surface of the lower cylinder. The projection serves to reduce vibrations of the magnetic tape generated when the video head carried by the rotary upper cylinder leaves from the magnetic tape.

Rotary magnetic head cylinder device for suppressing vibrations ofa

A magnetic recording and/or reproducing apparatus, comprising a rotary head device, in which a magnetic tape is drawn out of a cassette and brought into contact with the rotary head device. A tape draw-out device, doubling as a tape guide, forms a predetermined tape path and guides the drive of the magnetic tape after drawing out the magnetic tape. A fixed magnetic head and other tape guide mechanism are movably arranged on the path of the tape draw-out device during operation of the apparatus for reducing the size thereof. With the tape loading operation, the fixed magnetic head and the other tape guide are moved by a common drive mechanism and held in position by a common stopper.

Tape withdrawing device for a magnetic recording and/or reproducing

A magnetic head adjusting mechanism operable to adjust the position of magnetic heads with respect to a direction of a run of magnetic recording medium independently of the adjustments of the head gap angle, the heights of the heads and other adjustment items. The mechanism includes a head base plate carrying the magnetic heads and formed with a shaft bore in which is fitted a support shaft mounted on a chassis. The head base plate is resiliently biased about the axis of the support shaft. The rotation of the head base plate about the support shaft is limited by a tapered adjusting member formed by a tapered nut having a conical outer surface in contact with the head base plate and a screw shaft in threadable engagement with the tapered nut. The screw shaft is mounted on and extends from the chassis to support the tapered nut such that the generating line of the conical surface of the nut, which includes the point of contact of the nut with the head base plate, is substantially parallel to the axis of the support shaft.

Magnetic head position adjusting mechanism

A tape withdrawing member drive system forming a part of a loading mechanism for withdrawing a tape from a cassette for movement along a predetermined path of travel including gears driven from a motor through a rotation transmitting device, connecting linkages each including a plurality of joints supported at one end thereof by an end surface of one of the gears and engaging at the joint at the other end thereof one of tape withdrawing members. The system further includes the features that guide grooves for guiding the joints of the linkages and the joints at the other end and extending to the other end surface of the gears include arcuate groove sections concentric with the center of rotation of the gears and arcuate groove sections of radii equal to the length of the second link of each linkages, and that one of the gears is formed on a surface thereof opposite the surface at which the guide groove is formed with a cam groove for manipulating another mechanism and a cam groove for actuating a multiple contact slide switch.

Tape withdrawing member drive system

A system for bringing a wire-shaped or tape-shaped carrier into contact with a carrier guide member in a predetermined position includes carrier withdrawing guide members each movable between an operative position in which the carrier is brought into contact with the carrier guide member and an inoperative position in which the carrier is out of contact with the carrier guide member. A plurality of strip-shaped power transmitting members formed to be flexible and connected at one end thereof to the carrier withdrawing guide members respectively are each slidably fitted in one of guide grooves of a guide groove member formed as an insert on the base. A drive connected to a motor is in engagement with the strip-shaped power transmitting members to drive the same and move the carrier withdrawing guide members connected to the strip-shaped power transmitting members, whereby the carrier withdrawing guide members can be moved between the operative and inoperative positions.

Apparatus for bringing wire-shaped or tape-shaped carrier into contact

A motor-driven mechanism for pulling magnetic tape from a cassette and winding same around a rotary head cylinder for a circumferential extent of a predetermined angle is utilized for causing the pinch roller to force the magnetic tape against the capstan following tape loading.

Recording and playing system for magnetic tape from a cassette

A magnetic recording and reproducing apparatus, in which a magnetic tape is automatically mounted on a tape guiding drum containing rotary magnetic heads for the recording and reproduction of signals on and from the tape, is provided with a pair of tape drawing and mounting members which are engageable with a tape in a cassette mounted on the apparatus and movable along guide slots in guide board to draw the tape out of the cassette to a position in which the tape is mounted on and extends around the tape guiding drum. The tape drawing and mounting members are operatively connected to chains. Drive mechanism is provided to wind and unwind the chains so that the chains are moved along guide members to thereby move the tape drawing and mounting members, respectively, away from the cassette for the required tape drawing and mounting operation.

Magnetic recording and reproducing apparatus

Growing community of inventors

Katsuta, Japan

Hideyuki Kawase