摘要:
Playback, recording, and stop button plates are slidably mounted in parallel on a base plate. When pressed, the recording button plate engages the playback button plate so as to be locked to a recording position. A seesaw lever, which has a lock strip capable of engaging the playback button plate, is located in a plane across the sliding direction of the playback button plate and attached to the front wall of the base plate. An ejecting plate capable of engaging the stop button plate detects the difference between the displacement of the seesaw lever in the playback or recording mode and that in the stop mode. The stop button plate performs a stopping function without engaging the ejecting plate in the playback and recording modes, and engages the ejecting plate to perform cassette ejection in the stop mode.
摘要:
In a tape recorder including a circuit for generating a pulse signal corresponding to an amount of tape travel, an electronic counter circuit is provided which includes a counter for counting pulses and a display section for displaying a count value. The electronic counter circuit further includes a memory for receiving voltage at all times from a power supply and storing a count value and a control section adapted to maintain the energization of the display section for a predetermined time period after the operation of the tape recorder is stopped and to stop the energization of the display section thereafter, while inhibiting the resetting of the counter.
摘要:
A lock mechanism for locking a playback button plate to its playback position includes a seesaw lever disposed in a plane across the sliding direction of the playback button plate. The seesaw lever has a lock strip capable of engaging the playback button plate which is coupled with a playback button. When the playback button is pressed to retreat the playback button plate into the playback position, the seesaw lever rocks to have its lock strip engage the playback button plate, thereby locking the playback button plate.
摘要:
A photo-magnetic (magneto-optic) recording device having recording medium in the form of a rotating magnetic disc having magnetic characteristics in a direction perpendicular to its surface has a pickup head (7) disposed on one side of the disc and movable radially of the disc to scan selected areas of the disc. On the side of the disc opposite to that on which the pickup head is located, there are provided a plurality of coils (8) generating a bias-magnetic field applied to the disc. The coils are disposed in overlapping arrangement with their centers disposed on a line extending radially of the disc. The coils are energized by electric circuitry which comprises means for sensing the position of the pickup head and energizing a respective coil located in position to apply a bias-magnetic to the area of the disc scanned by the pickup head.
摘要:
An apparatus for moving the pinch roller and the magnetic head of a tape recorder into their operative positions comprises a small size motor which supplies a drive to a pair of drive and driven members such as the combination of a pinion and a rack. The drive is transmitted via the pair of members to a movable member which carries the pinch roller and magnetic head, thus moving the pinch roller and the magnetic head to their operative positions.
摘要:
A tape recorder with electronic counter having a counter portion (14) furnished with power from a first battery (18) and serving to display the extent of tape drive, a tape recorder portion (20) furnished with power from a second battery (22) and switched from one operation mode over to another according to the count value in the counter portion (14) and a switch (17) for permitting the power supply to the counter portion (14) from the second battery (22) when the counter portion (14) becomes inoperative with the exhaustion of the first battery (18).
摘要:
In the present invention, a discriminating means of recording media is formed in a cartridge containing a magneto-optical type recording media and in a cartridge containing other recording media, a sheltering height of a field applying means is changed according to the loading of each cartridge so that said field applying means is held close to the recording media in the case of the magneto-optical type cartridge while said means is sheltered high in the case of other type cartridge, and at the same time a discriminating means for recording media is provided to perform the signal processing corresponding to the recording media loaded.
摘要:
A disc jacket, especially for a photo-magnetic disk which records, reproduces and erases information, has a single opening configured to receive both a recording head and a central spindle. The opening extends along the whole radius of the disk to enable effective use of a larger area of the disc. The opening is opened and closed by a pair of shutter blades which automatically open when the disk jacket is inserted in an information recording and reproducing apparatus.
摘要:
A rotary machine having a rotating detection mechanism for detecting rotational speeds as a frequency signal is disclosed. The rotary machine comprises a rotary machine body, a disk shaped magnet tightly fitted onto a rotating shaft projected from the body, a ring shaped coil unit loosely mounted around the disk magnet for generating a frequency output corresponding to rotational speeds of the body, and a ring shaped member supporting the ring coil unit around the disk magnet.
摘要:
A connection terminal device for an electrical implement having a circuit substrate provided in a housing comprises a flexible substrate which is set in the housing and one end of which contacts the circuit substrate, and a plurality of printed lines which are mounted on the surface of the flexible substrate, and each of which is provided with a first terminal exposed to the open air and a second terminal electrically connected to the terminal of the circuit substrate.