摘要:
A cassette tape player utilizes a tape cassette having apertures formed through one side wall of its casing to accept a magnetic head and a pinch roller. The cassette tape player has a body assembly on which the tape cassette is freely loaded or unloaded and a lid supported by the body assembly so as to be freely rotatable for closing and opening the cassette tape player. The tape cassette is inserted into a loading region of the body assembly by closing the lid. A head assembly chassis is supported by one side end portion of the cassette loading portion so that its moves together with the lid. The head assembly also supports a magnetic head holder and the pinch roller. The tape cassette is supported by securing the upper surface wall of the cassette casing by inserting cassette holding members into the pinch roller insertion openings of the tape cassette. These holding members which are substantially parallel to the inner top wall of the lid support one side of the upper surface wall of the tape cassette while spring members provide opposing pressure to the opposite side of the upper surface wall of the tape cassette. The holding member and spring member combination hold the tape cassette for loading in a compact arrangement to ensure efficient use of space in the cassette tape player.
摘要:
A translation cam arrangement comprises a translation cam and an accentric gear rotatably secured to the translation cam, and as the eccentric gear is rotated by a driving gear meshed therewith, the translation cam reciprocates in correspondence with various distances between centers of both the gears. Thus, there is no need of another cam arrangement for moving the translation cam.
摘要:
A normal/reverse mode changing mechanism for a tape transport apparatus comprises a mode selecting lever, cam arrangement, and an electromagnet, and one of two tape running modes is selectively obtained due to changing the number of current pulses supplies to the electromagnet. The mode selecting lever has such a function as to move a plurality of controlling members, such as a drive gear engaged selectively with one of the reel base gears, and a lever, which can selectively press one of the two pinch rollers against the corresponding one of two capstans for controlling the direction in which the tape is running. The cam arrangement has such a function as to hold the mode selecting lever selectively in one of two positions: a first position for obtaining the first tape running mode by a combination of a first pinch roller and a first capstan, and a second position for obtaining the second tape running mode by another combination of a second pinch roller and a second capstan. The electromagnet has such a function as to control the angle of rotation of the cam arrangement and the position of the mode selecting lever.
摘要:
A mechanism for use in a cassette tape recorder automatically changes the mode of the recorder when the end of the tape is reached by sensing the cessation of rotation of the pinch roller. A mode change lever having an elongated hole with converging sides that receives a cylindrical portion of the pinch roller is biased by a spring so that the cylindrical portion engages the converging sides and the mode-change lever tends to rotate in a first direction. Once the pinch roller ceases to rotate, the mode-change lever is moved in a direction opposite the first direction and so that it cooperates with a mode-change drive assembly rotated by the capstan. The mode-change lever is then displaced and releases a mode key, so that the mode of the recorder is changed and is typically shut off.
摘要:
A cassette tape recording and/or reproducing apparatus has a rectangular chassis on which a cassette holder is pivotally mounted for angular movement relative to the chassis about an axis extending along one long side of the chassis between an inclined cassette receiving position and an operative position in which a cassette in the holder is loaded flat against the chassis, a pivot on the cassette holder defines a pivot axis which is adjacent, and at right angles to the axis of movement of the holder, and a head base is mounted on the pivot for movement relative to the cassette holder between a rest position, in which a magnetic head mounted on the base extends a relatively small distance into a cassette inserted in the holder, and an active position, in which the head is further projected into a cassette in the operatively positioned holder.
摘要:
A cassette type recording and/or reproducing apparatus having a chassis in which a cassette is mounted on an upper surface thereof. An upper surface of the chassis is formed with a recess in whcih a pair of reels and a gear machanism including a plurality of gears to actuate the pair of reels to rotate are mounted from an above direction, thus reducing a height dimension of the entire apparatus and achieving an easy assembly operation with fewer parts and less labor time for the assembly of the apparatus.
摘要:
A cassette tape recording and/or reproducing apparatus has a head base assembly comprised of a first arm mounted, at one end, on the chassis for swinging about a first axis perpendicular to a plane on which a cassette is located on the chassis, a second arm connected in end-to-end relation to the other end of the first arm by a joint structure permitting relative angular displacements about a second axis parallel to the first axis, and a fixed guide post extending parallel to the plane of the chassis and passing slidably through a slot in the second arm for stabilizing the position of a magnetic head on the second arm in respect to a cassette on the chassis. The joint structure includes a screw defining the second axis and being turnable to relatively displace the connected ends of the arms along that second axis for rocking the second arm about the fixed guide post and thereby varying the aximuth angle of the head.
摘要:
A recording and/or reproducing apparatus for a recording medium, such as a magnetic tape, includes a recording and/or reproducing unit, a main body portion, a signal line and a take-up mechanism. The main body portion houses the recording and/or reproducing unit. The external equipment includes an input unit for entering a signal for setting the operating mode of the recording and/or reproducing unit and an electro-acoustic transducer for converting signals from the recording and/or reproducing unit into audible sound. The external equipment may be attached to and detached from the main body portion and exchanges signals with the recording and/or reproducing unit. The signal line interconnects the external equipment and the recording and/or reproducing unit. The signal line has its one end connected to the external equipment and its other end connected to a circuit board housed within the main body portion for exchanging information signals with the recording and/or reproducing unit. The take-up mechanism takes up the signal line and houses it within the main body portion. The take-up mechanism is arranged on the circuit board within the main body portion.
摘要:
A motor includes a bearing portion, a chassis, a thrust pad and a plurality of supporting members. The bearing portion is formed of a sintered oilless bearing or the like and supports a rotary shaft of the bearing portion. The chassis has a stator attached thereto and has a cylindrical holding portion for retaining therein the bearing portion integrally formed therewith. The thrust pad is disposed within the holding portion and pivotally supports the rotary shaft in the thrust direction. The supporting members are disposed on the bottom surface portion of the holding portion and support the thrust pad.
摘要:
In an auto-reverse type tape recorder also capable of repeatedly playing a tape in both directions, the tape travel is not shut off when the mode of operation is manually changed over from the normal run mode to the reverse run mode, or vice-versa, and after a changeover to the record mode, manual changeover operation is locked-out or made impossible in order to prevent the travel of the tape from being inadvertently changed over and, further, the travel of the tape is stopped without fail at the end of either the normal run mode or the reverse run mode.