Abstract: A tape end detector for reel driven cassette tape recorders includes a drive gear which is driven by a motor, a transmission gear which normally transmits the rotation of the drive gear to a take-up gear associated with a tape take-up shaft but which revolves around the drive gear to detect a tape end being reached whenever the take-up gear ceases to rotate when a terminal end of a tape being taken up is reached, and a support arm for supporting the transmission gear and adapted to be driven angularly by the revolution of the transmission gear to achieve an auto-shutoff operation of the tape recorder.

Abstract: A method of producing a structure of connection terminals with contacts includes a step of forming a synthetic resin by molding with a comb-shaped intermediate material buried therein such that end portions of the terminals of the intermediate are left unburied and cutting off the portion of the intermediate material connecting the terminals from the terminals.

Abstract: A tape cassette comprises a housing for accommodating a magnetic tape therein, tape hubs provided at a predetermined position on the housing for winding the tape therearound, and opening window portions provided at opposite sides of the housing and accessible to the tape.

Abstract: An auto shut-off apparatus for a cassette tape recorder includes a pinion fixedly mounted on a capstan in coaxial manner, and a pair of rack levers carrying a rack which meshes with the pinion. The levers are movably mounted and are moved when they are driven by the pinion. The apparatus also includes a cam member which is fixedly mounted on a tape rewind or a tape supply shaft for interrupting the meshing engagement between the rack and the pinion during tape transport. When a tape end is reached to cease the rotation of the tape rewind or supply shaft, the movement of the rack levers resets an operating member of the tape recorder to stop the operation thereof automatically.

Abstract: A device for tape recorder comprises a head mounting plate to which a magnetic head is secured, and a head support plate formed with a notch which is adapted to receive the mounting plate therein for permitting an adjustment of the elevation of the mounting plate relative to the support plate, and for minimizing the space occupied by the head and its mounting assembly.

Abstract: A tape cassette-ejecting device comprises an eject lever pivotably supported by a magnetic head-supporting plate and an eject control button selectively rotate the eject lever. When the eject control button is depressed, the eject control lever is rotated to push up a tape cassette when a magnetic head is apart from a magnetic tape, while it is not rotated when the magnetic head is contacted with the tape.

Abstract: A tape cassette case comprises a pair of locking members disposed for engagement with a pair of tape hubs contained within the cassette, means for rotatably supporting at least one of the locking members, and means for constraining rotation of the locking member in a forward tape feeding direction. The locking member can be externally operated to drive the tape in its forward feeding direction in order to remove a slackened condition or unreeling in the forward feeding direction of the tape contained in the cassette.

Abstract: A cassette tape recorder is provided in which "auto shut-off" is achieved at a terminal end of a running tape during the rewind mode when the tape comes to a stop. A tape rewind shaft is moved by a rotating drive applied thereto to cause a rocking motion of a tape end detecting lever, whereby an abutment lever is moved into the path of rotation of a release pin on a flywheel. The pin rocks the abutment lever to unlock a tape rewind member which has been maintained in its tape rewind position, thus returning it to its initial position. Systems for transmitting a rotating drive to a tape take-up shaft and to the tape rewind shaft each comprise a gear train. During a tape rewind mode, a drive switching gear in the train is operated by a switching lever to be disconnected from the transmission system associated with the tape take-up shaft and to be connected with the transmission system for the tape rewind shaft.

Abstract: A dynamoelectric machine comprises a flat coreless rotor rotatably mounted in a housing which also serves as a yoke, a commutator integrally mounted on the rotor, a magnet disposed in juxtaposition with and in opposing relationship with one of the major surfaces of the rotor, and a brush assembly disposed for sliding contact with the commutator. The commutator is electrically connected with the rotor winding on the side of the rotor which is adjacent to the one major surface thereof, and extends to the opposite side of the rotor for sliding engagement with the brush assembly, whereby the dynamoelectric machine is miniaturized.