JPH0422294B2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention has a mechanism (generally referred to as a one-record mechanism) in which a playback control lever is operated in conjunction with a recording control lever, and the playback control lever The present invention relates to a tape recorder in which an automatic music selection state is obtained by operating a fast forward (or rewind) operating lever.

(B) Conventional technology Tape recorders that generally have an automatic song selection function have a playback control lever and a fast forward (or rewind) function.
Lock the operating lever in the operating position, run the tape at high speed, detect unrecorded sections between tracks on the magnetic tape, and then unlock the fast forward (or rewind) operating lever via electromagnetic means. However, it is configured to automatically switch to playback mode from the beginning of the song.

By the way, the electromagnetic means for switching from the high-speed playback state to the playback state is energized during high-speed playback, the fast-forward (or rewind) operating lever is locked, and a non-recorded portion is detected and the electromagnetic means is de-energized. An arrangement in which the fast forward (or rewind) operating lever is unlocked by pressing the fast forward (or rewind) operating lever is known from the point that the capacity of the electromagnetic means can be reduced.
(For example, see Japanese Patent Application Laid-Open No. 54-41707).

In the above conventional technology, a plunger is used as the electromagnetic means, but in order to simplify the configuration, an electromagnet and an adsorption piece are used as the electromagnetic means, as described in Japanese Utility Model Application Publication No. 56-51141. It is also known that

(c) Problems to be solved by the invention As seen in the above-mentioned Japanese Utility Model Application Publication No. 56-51141, the operation position of the fast forward (or rewind) operating lever is locked by the attraction piece being attracted by an electromagnet. If such a configuration is adopted, the electromagnet may be energized when a music selection operation is performed by operating a playback operation lever and a fast forward (or rewind) operation lever.

By the way, when performing an automatic song selection operation with a tape recorder that employs the one-record mechanism as described above, even though it is necessary to operate the playback operation lever and the fast forward (or rewind) operation lever,
If the recording operation lever and the fast forward (or rewind) operation lever are operated by mistake, the reproduction operation lever will also be operated in conjunction with the recording operation lever.

Therefore, the erasing head for recording is activated, the electromagnet is energized, and the fast forward (or rewind) operating lever is locked.

When this happens, a normal tape recorder will fast forward (or rewind) the tape at high speed.
This is extremely inconvenient as the recorded songs are erased while the vehicle is being driven.

(d) Means for Solving the Problems In view of the above-mentioned problems, the present invention has a mechanism for operating the playback operation lever in conjunction with the recording operation lever, and fast forwards (or rewinds) the playback operation lever with the playback operation lever.
In a tape recorder that automatically selects a song by operating a control lever, there is a lock lever that locks the operating position of each of the recording and playback control levers, and a lock lever that is attached to a fixed plate and that is connected to the playback control lever for fast forwarding (or rewinding). ) A movable device having an electromagnet that is excited when the operation lever is operated, and an attraction piece facing the electromagnet, and locking the operation position of the fast forward (or rewind) operation lever at the attraction position of the attraction piece. and a means for moving the movable plate from a suction position to a non-adsorption position in response to operation of the recording operation lever, and the recording operation lever and the fast forward (or rewind) operation lever are inadvertently operated at the same time. There is provided an operating device for a tape recorder, characterized in that when the electromagnet is excited, the attraction piece cannot be attracted.

(e) Operation When the recording operation lever is operated, the movable plate is forcibly moved to the right against the spring through the pin that contacts the cam hole formed in the operation lever, and this movable plate Since the attracting piece provided on the magnet moves to a position separated from the electromagnet, the attracting piece is not attracted even if the electromagnet is excited at this time.

Since the attracting piece on the movable plate is not attracted by the electromagnet, the fast forward (or rewind) operating lever is not locked by the movable plate.

(f) Embodiments Examples of the present invention apparatus shown in the drawings will be described below.

In the exploded perspective view shown in FIG. 6, 1 is a mechanism chassis made of synthetic resin molding, and has lever positioning recesses 1a, 1b, 1c, 1d, and 1e.
For recording operation lever 2, playback operation lever 3,
A rewind operation lever 4, a fast-forward operation lever 5, and a stop operation lever 6 are fitted from above and are mounted so as to be operable and movable from above by means of a lever holding plate 7. Reference numeral 8 designates a lock lever for each of the operating levers, including a protrusion 8a that engages the engagement piece 2a of the recording operation lever 2, a protrusion 8b that engages the engagement piece 3a of the playback operation lever 3, and a rewind operation lever 4. Engagement piece 4
a, a projection 8c that engages the engagement piece 5a of the fast-forward operation lever 5, a projection 8d that engages the engagement piece 5a of the fast-forward operation lever 5, and a stop operation lever 6.
It has a protrusion 8e that comes into sliding contact with the slope 6a.

The recording operation lever 2 is provided with a protrusion 2b that comes into contact with the protrusion 3b of the playback operation lever 3 when the recording operation lever 2 is operated, and when the recording operation lever 2 is operated, the playback operation lever 3 is also operated in conjunction with the operation. The engaging pieces 2a, 3a of the lock lever 8 are the protrusions 8a,
8b and is locked in the operating position. When only the playback operation lever 3 is operated, its engagement piece 3a
engages with the protrusion 8b of the lock lever 8 and is locked in the operating position. The rewind operation lever 4 or the fast forward operation lever 5 is only operated from a stopped state when the respective engaging pieces 4a and 5a engage with the protrusion 8 of the lock lever 8.
c and 8d to be locked in the operating position. The stop operation lever 6 has a slope 6a that is connected to the lock lever 8.
By slidingly contacting the protrusion 8e, each of the above-mentioned lock states is released.

The rewind operating lever 4 and the fast forward operating lever 5 are provided with engagement pieces 4b, 5b so that their operating positions can be locked by a lock pin of a movable plate associated with electromagnetic attraction means, which will be described later.

Reference numeral 9 indicates guide pins 10, 10 on the chassis 1 .
A movable plate is provided with elongated holes 11 and 11 combined with each other so as to be movable in the left and right direction. 15, and is biased toward the left in the figure by a spring 16.

17 is a spring hook on the chassis 1 .
A fixed plate 18 is fixed to a boss 19 on the chassis 1 with a mounting screw 20, and an electromagnet 22 is mounted on the top surface with a mounting screw 21. On the other hand, on the movable plate 9, a suction piece 24 is provided on a support shaft 23 facing the electromagnet 22, and the suction piece 24 is connected to a support piece 25 and an elastic arm 26 that are erected on the movable plate 9. It is maintained by

The electromagnet 22 is energized via a switch (not shown) that is turned ON when the playback operation lever 3, fast-forward operation lever 5, or rewind operation lever 4 is operated to perform an automatic song selection operation. 24
The movable plate 9 equipped with the movable plate 9 is always urged by a spring 16 to a suction position (a position where the suction piece is suctioned and held when the electromagnet is excited). 27,2
8, 29, 30, 31 are the respective operating levers 2,
3, 4, 5, and 6 return springs.

The operation of the device of the present invention will be explained below.

FIG. 1 shows the stopped state, and when the regeneration operation lever 3 is operated from this state, the engagement piece 3a of the operation lever 3 is engaged with the protrusion 8b of the lock lever 8, as shown in FIG. 2, and the regeneration state is established. can be obtained,
When the fast-forward operation lever 5 is operated from this reproducing state, the electromagnet 22 is excited and attracts the attraction piece 24, thereby holding the movable plate 9 at the attraction position. At this time, by operating the fast-forward operating lever 5, the engaging piece 5
Although the lock lever 8 a comes into contact with the protrusion 8 d of the lock lever 8 and moves the lock lever 8 slightly to the left, the protrusion 8 b of the lock lever 8 remains engaged with the engagement piece 3 a of the playback operation lever 3, while the fast-forward operation lever 5 is the engagement piece 5b and the lock pin 1 of the movable plate 9.
The operating position is locked by engagement with the third
The system enters the automatic song selection state shown in the figure.

Next, when the recording operation lever 2 is operated from the stopped state, the playback operation lever 3 is operated in conjunction with the contact between the protrusion 2b and the protrusion 3b, and the engagement piece 2a of the recording operation lever 2 and the playback operation lever 3 are engaged. The piece 3a engages with the protrusions 8a and 8b of the lock lever 8, respectively, and the operating position is locked, resulting in the recording state shown in FIG. When the recording operation lever 2 is operated, the cam hole 14 comes into sliding contact with the operating pin 15, and the movable plate 9 is moved to the right in the figure against the spring 16, and the movable plate 9 is attracted. The piece 24 is brought to a non-adsorption position spaced apart from the electromagnet 22.

Therefore, if you accidentally operate the recording operation lever 2 and the fast-forward operation lever 5 at the same time when obtaining the automatic song selection state shown in FIG. 3, the playback operation lever 3 will be operated in conjunction with the recording operation lever 2. As a result, the electromagnet 22 is energized, and as shown in FIG.
The movable plate 9 moves to the non-adsorption position and the adsorption piece 2
4 is apart from the electromagnet 22, the attraction piece 24 is not attracted to the electromagnet, and the fast forward operation lever 5
is not locked by the lock pin 13 of the movable plate 9, and as a result, it can be returned to its original position immediately when the fast-forward operating lever 5 is released.

In addition, in the above explanation, the erroneous operation of the recording operation lever 2 and the fast forward operation lever 5 was explained.
Even in the case of erroneous operation of the recording operation lever 2 and the rewind operation lever 4, the electromagnet 22 is energized by the interlocking operation of the playback operation lever 3; 24 is not attracted, the rewind operation lever 4 is not locked to the movable plate 9, and can be returned to its original position by releasing the operation.

(G) Effects of the Invention As described above, the present invention provides that the recording operation lever and the fast forward (or rewind) operation lever are operated by mistake to obtain the automatic song selection state, and the playback operation lever is activated in conjunction with the recording operation lever. Even if the electromagnet is energized by the operation of the recording control lever, the movable plate with the adsorption piece is moved to the non-adsorption position in conjunction with the operation of the recording control lever, so the adsorption piece of the movable plate is activated by the electromagnet. The fast forward (or rewind) operating lever, which is locked by being attracted by the tape, can be brought into an unlocked state, thereby eliminating the concern that the tape high speed running erased state may continue due to the above-mentioned erroneous operation. This makes it possible to easily solve inconveniences caused by erroneous operations when automatically selecting music on a tape recorder that employs a one-record mechanism.

[Brief explanation of drawings]

The figures show the device of the present invention, in which Fig. 1 is a plan view in a stopped state, Fig. 2 is a plan view in a playback state, Fig. 3 is a plan view in an automatic song selection state, and Fig. 4 is a plan view in a recording state.
FIG. 5 is a plan view of the erroneously operated state, and FIG. 6 is an exploded perspective view. 2... Recording operation lever, 3... Playback operation lever, 4
...Rewind operation lever, 5...Fast forward operation lever, 8
... Lock lever, 9... Movable plate, 12, 13... Lock pin, 14... Cam hole, 15... Operating pin, 16...
Spring, 18... Fixed plate, 22... Electromagnet, 24
...Adsorption piece.

Claims (1)

[Claims] 1. In a tape recorder having a mechanism in which a playback control lever is operated in conjunction with a recording control lever, and an automatic song selection state is obtained by operating the playback control lever and the fast forward (or rewind) control lever, the recording and playback A lock lever that locks the operating position of each operating lever, and a lock lever that is attached to a fixed plate and that locks the operating position of each operating lever, and a lock lever that locks the operating position of each operating lever, and a lock lever that is attached to the fixed plate and that controls the playback operating lever and fast forward (or rewind).
a movable plate having an electromagnet that is excited when the operating lever is operated, and an attraction piece facing the electromagnet, and locking the operating position of the fast forward (or rewind) operating lever at the attraction position of the attraction piece; and a means for moving the movable plate from the adsorption position to the non-adsorption position in response to the operation of the recording operation lever, and the recording operation lever and the fast forward (or rewind) operation lever are accidentally operated at the same time. An operating device for a tape recorder, characterized in that the electromagnet is configured such that the attraction piece cannot be attracted even when the electromagnet is excited.