JPS626588Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention has a cue or review function that fast-forwards or rewinds while playing, and a fast-forward or rewind function that detects the no-signal portion between the signals of music recorded on a magnetic tape. The present invention relates to a tape recorder having a song selection function for canceling the return state and switching to the playback state.

Queue or review operations are performed by pressing the fast-forward or rewind operation button with the playback operation button locked in the operating position; in this case, the fast-forward or rewind operation button is pressed. The operating button is not locked in the operating position, and when the pressing operation is stopped, the fast-forward operating button or the rewinding operating button returns to the non-operating position, and the tape recorder enters the playback state. On the other hand, in the song selection operation, the playback operation button, fast forward operation button, or rewind operation button is locked in the operating position, and when the magnetic head detects a no-signal area between the signals, the fast forward operation button or the rewind operation button is pressed. This is done by unlocking the return operation button and placing the tape recorder in the playback mode.

The present invention aims to provide a control mechanism suitable for a tape recorder equipped with the queue/review function and song selection function, and will be described in detail with reference to the illustrated embodiment. Reference numeral 1 designates a sliding control member that is slidably attached to a fixed base plate and is biased in the direction of arrow A by a spring 2, and is engaged with an engaging piece 4 formed on a fast-forward operation lever 3. A lock piece 5 that engages with an engaging piece 7 formed on the rewind operation lever 6 to hold the fast forward operation lever 3 in the operating position, and a lock piece 8 that engages with an engagement piece 7 formed on the rewind operation lever 6 and holds the rewind operation lever 6 in the operation position. is formed. The locking piece 5 has a first inclined part 5a that comes into contact with the engaging piece 4 when the fast-forward operation lever 3 is displaced to the operating position, and a first inclined part 5a that comes into contact with the engaging piece 4 when the operating lever 3 is displaced to the operating position. 2 inclined part 5
have. Similarly, the lock piece 8 comes into contact with the engagement piece 7 when the rewind operation lever 6 is moved to the operating position, and the first inclined portion 8a comes into contact with the engagement piece 7 when the operation lever 6 is moved to the operation position. It has a second inclined portion 8b. The fast forward operation lever 3
The rewind operation lever 6 is biased by a spring (not shown) in the direction of arrow B, which is the non-operating position, and the magnitude of the biasing force is equal to the magnitude of arrow A of the sliding control member 1 of the spring 2. Depending on the biasing force in the direction, the fast forward operating lever 3 and the rewind operating lever 6 are set to such a size that they cannot be held in their operating positions. Reference numeral 9 denotes a rotation control member which is rotatably attached to a mounting plate 10 attached to a fixed base plate with screws 11, and has an engagement member that constantly engages with a protrusion 12 formed on the slide control member 1. A joining part 13 and a suction part 14 are formed. An electromagnet 15 is fixed to the mounting plate 10 with a screw 16, and when it is energized during a music selection operation, it attracts the attraction part 14 of the rotation control member 9 and also creates an electromagnet between the signals recorded on the magnetic tape. The configuration is such that when a certain no-signal portion is detected, the power supply is cut off.

The present invention is constructed as described above, and its operation will be explained next. First, the queue operation will be explained. When performing such a cue operation, the electromagnet 15 is not energized, so the suction portion 14 of the rotation control member 9 is not attracted, and only the biasing force of the spring 2 acts on the slide control member 1. When the fast-forward button is operated while the tape recorder is in the playback mode, the fast-forward operating lever 3 slides in the direction of arrow C. When the fast-forward operation lever 3 is displaced in the direction of arrow C, the engagement piece 4 comes into contact with the first inclined portion 5a of the lock piece 5, and the sliding control member 1 is displaced in the direction of arrow D against the biasing force of the spring 2. Then, the fast-forward operation lever 3 is displaced to the operating position, and the engagement piece 4 comes into contact with the second inclined portion 5b of the lock piece 5 as shown by the two-dot chain line. In this state, the tape is rapidly forwarded, forming a so-called cue operation. When the fast-forward button is released in such a state, the fast-forward operating lever 3 returns to the non-operating position in the direction of arrow B, since the locking piece 5 of the sliding control member 1 does not hold the engaging piece 4 in the operating position. However, the tape recorder becomes playback driven. The review operation in which rewinding is performed while playing is performed by displacing the rewind operation lever 6 in the direction of arrow C instead of the fast-forward operation lever 3 explained in the above-mentioned cue operation, and its explanation is as follows. Omitted.

The queue operation is performed as described above, but the music selection operation will be explained next. When a music selection operation is performed, the electromagnet 15 is energized, and the attraction portion 14 of the rotation control member 9 is attracted by the electromagnet 15. As a result, the rotation control member 9 is urged to rotate in the counterclockwise direction, and the sliding control member 1 connected to the rotation control member 9
is further urged in the direction of arrow A, which is the same direction as the urging force of spring 2. Therefore, in such a state, when the fast-forward operating lever 3 is displaced in the direction of arrow C to the operating position, the operating lever 3
The engaging piece 4 formed in the locking piece 4 is displaced to the position shown by the two-dot chain line and comes into contact with the second inclined portion 5b of the locking piece 5. During this music selection operation, the urging force of the sliding control member 1 in the direction of arrow A is increased due to the attractive force of the electromagnet 15, so that the fast-forward operation lever 3 is engaged with the locking piece 5 and the engaging piece 4. is held in the operating position by the As a result, even if the pressing force on the fast-forward button is released, the fast-forward button does not return to the non-operating position, and the tape recorder enters a song selection operation state in which the playback button and the fast-forward button are locked in the operating position. In this state, when the magnetic head detects a no-signal portion between the signals recorded on the magnetic tape, the power to the electromagnet 15 is cut off. When the electromagnet 15 is de-energized, the force that attracts the suction portion 14 of the rotation control member 9 is lost, so the urging force acting on the slide control member 1 in the direction of arrow A becomes smaller, and the fast-forward operation lever 3 is released from being held by the lock piece 5, is displaced in the direction of arrow B, and returns to the non-operating position. As a result, the fast-forward operation is canceled, the tape recorder enters the playback mode, and the desired song or the like is played back. The operation when selecting a song by fast-forwarding has been explained above, but when selecting a song by rewinding, it is sufficient to operate the rewind operation lever 6 instead of the fast-forward operation lever 3, and the explanation of the operation will be omitted. do.

As explained above, the present invention provides a cue or review operation that disables the holding operation of the fast-forward operation lever or the rewind operation lever in the operation position and the holding operation in the operation position by controlling the energization operation to the electromagnet. Since the music selection operation is selectively performed, the structure is simpler than the conventional technology in which the locking operation of the locking member that locks the operating lever in the operating position is mechanically controlled. It has advantages. Furthermore, the direction of the biasing force of the spring that biases the sliding control member provided to lock and hold the fast forward or rewind operating lever in the direction of the lock position is the same as the direction of the biasing force due to the attractive force of the electromagnet. This makes it possible to reduce the attractive force of the electromagnet, and the present invention is highly effective in downsizing the electromagnet and reducing current consumption. Furthermore, the present invention is suitable for downsizing tape recorders because the mechanism for transmitting the attractive force of the electromagnet to the sliding control member that holds the operating lever is achieved by using a rotation control member that rotates. Its practical value is extremely high.

[Brief explanation of the drawing]

The drawing shows an embodiment of the control mechanism of the present invention. Description of main drawings, 1...Sliding control member, 3...
Rapid-forward operation lever, 4, 7...Engagement piece, 5, 8...
... Lock piece, 6 ... Rewind operation lever, 9 ... Rotation control member, 14 ... Adsorption part, 15 ... Electromagnet.

Claims (1)

[Scope of utility model registration request] It has a cue or review function that fast-forwards or rewinds while playing, and a song selection function that releases the fast-forward or rewind state and switches to the playback state by detecting a no-signal part between the signals recorded on the magnetic tape. In a tape recorder, at least a locking piece is formed that engages with an engaging piece formed on the fast forward or rewind operating lever to hold the fast forward or rewind operating lever in an operating position, and the locking piece is arranged in a locked position and a non-locking position. a slide control member that is slidably attached between the slide control member and is biased toward the lock position by a spring, and an engaging portion that engages with a protrusion formed on the slide control member. a rotation control member that is rotatably displaced in accordance with the sliding displacement of the slide control member and has a suction portion formed therein; an electromagnet that attracts and urges the sliding control member toward the lock position via the rotation control member, and when a song is not selected, the fast forward or rewind operation lever is returned to the non-operating position by the force of the electromagnet. The sliding control member is displaced toward the unlocked position against the biasing force of the spring to disable the locking piece from holding the operating lever in the operating position, and when performing a music selection operation, the sliding control member is moved by the attractive force of the electromagnet. 1. A control mechanism for a tape recorder, characterized in that a locking piece is enabled to hold the operation lever in an operating position by applying a biasing force of the motion control member in the direction of the locking position.