JPS632139A - Tape recorder operating device - Google Patents

Abstract

PURPOSE:To prevent mis-operation by constituting an attracted piece so as not to be attracted even if an electromagnet is excited in case a fast forwarding or a rewinding operating lever is simultaneously operated in mistake together with a recording operating lever. CONSTITUTION:If the recording operating lever 2 and the fast forwarding operating lever 5 are simultaneously operated in mistake in obtaining the automatic music selection state, a reproduction operating lever 3 is operated interlockingly with the recording operating lever 2, the electromagnet 22 is excited, a moving plate 9 is moved in the non-attracting position by a cam hole 14 of the recording operating lever 2 and since the attracting piece 24 is parted from the electromagnet 22, the attracting piece 24 is not attracted by the electromagnet and the fast forwarding operating lever 5 is not locked to a lock pin 13 of a moving plate 9. As a result, the fast forwarding operating lever 5, being released, is restored immediately. Thus, mis-operation is prevented.

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 recording operation lever is operated in conjunction with a playback operation lever, and the playback operation The present invention relates to a tape recorder in which an automatic music selection state is obtained by operating a lever and a fast forward (or rewind) operating lever.

(B) Conventional technology In general, a tape recorder with an automatic song selection function locks the playback control lever and the fast forward (or rewind) control lever in the operating position, and runs the tape in a high-speed playback state to play the songs on the magnetic tape. By detecting an unrecorded portion in between, the fast forward (or rewind) operating lever is unlocked via electromagnetic means, and the playback mode is automatically switched 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 set to an energized state during high-speed playback, the fast-forward (or rewind) operating lever is locked, and the non-edge portion is detected and the electromagnetic means is set to a de-energized state. A configuration in which the lock of the fast forward (or rewind) operating lever is released by pressing the button is known from the point that the capacity of the electromagnetic means can be reduced.
.

In the above-mentioned conventional technology, a plunger is used as the electromagnetic means, but in order to simplify the configuration,
As described in Japanese Patent No. 6-51141, a device using an electromagnet and an adsorption piece as the electromagnetic means is also known.

(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 (rewind) operation lever.

By the way, when performing an automatic song selection operation with a tape recorder that uses a one-record mechanism as described above, even though the playback operation lever and the fast forward (or rewind) operation lever must be operated, it is possible to accidentally press the recording operation lever. If the fast forward (or rewind) operating lever is operated, the playback operating lever will also be operated in conjunction with the recording operating lever.

For this reason, the erasing head for recording is activated and the electromagnet is energized, locking the fast forward (or rewind) operating lever.When this situation occurs, in a normal tape recorder, the tape is fast forwarded (or rewinded) at high speed. (Returning) This is extremely inconvenient as the recorded songs are erased while the vehicle is being driven.

B) 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 the playback operation lever and the fast forward (or rewind) operation lever are connected to each other. In the tape recorder, the automatic song selection state is obtained by the operation of a lock lever that locks the operation position of each of the recording and playback operation levers, and a lock lever that is attached to a fixed plate and is connected to the playback operation lever for fast forward (or rewind) operation. an electromagnet that is excited when the lever is operated; and a movable plate that has an attraction piece facing the electromagnet and locks the operation position of the fast forward (or rewind) operating lever at the attraction position of the attraction piece. ,
means for moving the movable plate from the suction position to the non-adsorption position Cζ in response to the operation of the recording operation lever, and when the recording operation lever and the fast forward (or rewind) operation lever are accidentally operated at the same time. The present invention provides an operating device for a tape recorder characterized in that the attracting piece cannot be attracted even when an electromagnet is excited.

(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 provided attraction piece moves to a position separated from the electromagnet, it does not attract the attraction piece even if the electromagnet is excited at this time.

Since the attraction 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) Example Embodiments of the apparatus of the present invention shown in the drawings will be described below.

In the exploded perspective view shown in Fig. 6, (G) is a mechanism chassis constructed of synthetic resin molding, and the recording operation lever is located in the lever positioning recesses (1 (1b) (10 (1d) (1e)). (2), playback operation lever (3), rewind operation lever (4), fast-forward operation lever (5j), and stop operation lever (6) are fitted from above and can be operated and moved from above by lever holding plate (7). is installed on.

(8) is a lock lever for each of the operation levers, including a protrusion (8λ) that engages the engagement piece (2a) of the recording operation lever (2), and an engagement piece (3a) of the playback operation lever (3). ), the projection (8C) that engages the engagement piece (42) of the rewind operation lever (4), and the engagement piece (5a) of the fast-forward operation lever (5). a protrusion (8d), a protrusion (8e) that slides into contact with the slope (6a) of the stop operation lever (6);
).

The recording operation lever (21) 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 (21) is operated. ) are also operated in conjunction, and the respective engagement pieces (2a) and (3a) engage the protrusion (8) of the lock lever (8).
m) (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 operation position. Rewind operation lever (4)
Or, the fast-forward operation lever (5) is only operated from a stopped state when the respective engagement pieces (4λ) (5a) are locked with the lock lever (
8) is engaged with the protrusions (8C) and (8d) to be locked in the operating position. The stop operation lever (6) releases each of the above-mentioned locked states when its slope (6a) comes into sliding contact with the protrusion (8c) of the lock lever (8).

The rewind operating lever (4) and the fast forward operating lever (5) have engaging pieces (4b) so that their operating positions are locked by a lock pin of a movable plate associated with the electromagnetic attraction means described later. (5b) is formed.

(9) is the guide pin α0)αα on the chassis (1)
It is a movable plate that is provided with a long hole plate 1) and is movable in the left and right direction, and the movable plate (9) has a lock pin 020J.
It also has an operating pin inserted into the cam hole of the recording operation lever (2), and is biased toward the left in the figure by a spring (IG).

αη is the spring load on the chassis (1). α
Q is a fixing plate fixed to the boss side of the chassis (1) with a mounting screw (2), and an electromagnet is attached to the top surface with a mounting screw (Corporate). - On the other hand, on the movable plate (9), a suction opening is provided on the support shaft facing the electromagnet (2),
The suction piece □□□ is held within a support piece erected on the movable plate (9) and by an elastic arm.

The electromagnet (3) is energized via a switch (not shown) that is turned ON during automatic song selection when the playback operation lever (3) and the fast forward operation lever (51 or the rewind operation lever (4) are operated). The movable plate (9) equipped with the suction piece (to) is always urged to the suction position (the position where the suction piece is held by suction when the electromagnet is excited) by the spring αe. ) The four lotuses are each of the above operating levers (2
1 (3) (41 (51 (8)) return spring.

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

Fig. 1 shows the stopped state, and when the regeneration operating lever (3) is operated from this state, the engagement piece (3a) of the operating lever (3) engages the lock lever (8) as shown in Fig. 2. protrusion(
8b) to obtain a regeneration state, and when the fast forward operation lever (51) is operated from this regeneration state, the electromagnet (support) is excited and attracts the attraction piece (to), and the i
] Hold the moving plate (9) in the suction position. At this time, when the fast-forward operation lever (5) is operated, its engagement piece (5) comes into contact with the protrusion (8d) of the lock lever (8), and the lock lever (8)
) was moved slightly to the left, but the lock lever (8
) is the engagement piece (3) of the playback operation lever (3).
a), and the - side fast-forward operation lever (5).
1 is the lock pin Q of the engagement piece (5b) and the movable plate (9)
31, the operating position is locked and the automatic music selection state shown in FIG. 6 is entered.

Next, when the recording operation lever (2) is operated from this stopped state, the playback operation lever (3) is operated by movement due to the contact between the protrusion (2b) and the protrusion (3b), and the recording operation lever (2) is engaged. The mating piece (21) and the engaging piece of the playback operation lever (3) (the 3 pieces are attached to the protrusions (8a) and (8b) of the lock lever (8), respectively).

When engaged, the operating position is locked, and the recording state shown in FIG. 4 is entered. When this recording operation lever (2) is operated, its cam hole side slides into contact with the operating pin (15), thereby moving the movable plate (9) to the right in the figure against the spring force. Bring the attraction piece (9) to a non-adsorption position away from the electromagnet.

Therefore, when obtaining the automatic song selection state shown in Fig. 3, the recording operation lever (2) and the fast forward operation lever (
51 at the same time, the recording operation lever (21
At the same time, the playback operation lever (3) is operated in conjunction, and the electromagnet is excited, but as shown in Fig. 5, the cam hole α of the recording operation lever (2) is pulled and the movable plate (9)
moves to the non-adsorption position and the suction piece (material) is separated from the electromagnet, so the suction piece (goods) is not attracted to the electromagnet.
The fast-forward operation lever (5) is connected to the lock pin 0 of the movable plate (9).
3), and as a result, the fast forward operation lever (5)
You can restore it immediately by releasing the operation.

In the above explanation, we have explained about the erroneous operation of the recording operation lever (2) and the fast-forward operation lever (5), but the playback operation lever ( The electromagnet is energized by the interlocking operation in step 3), but as before, the movable plate (9) is in the non-adsorption position and the adsorption piece (goods) is not adsorbed by the electromagnet, so the rewind operation lever (4) is movable. It is not locked to the 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 linked to 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 when it is attracted by the tape, can be unlocked, and as a result, the concern that the above-mentioned erroneous operation may cause the tape to run at high speed and continue to be erased can be eliminated. ,
This makes it possible to easily solve inconveniences caused by erroneous operations when performing automatic song selection operations on tape recorders employing 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 music selection state, Fig. 4 is a plan view in a recording 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 1 ( 91...
・Movable plate, concave α3...lock bin, α lever...cam hole,
Convex...operating pin, αQ...spring, α mark...
Fixed plate, electromagnet, adsorption piece.

Claims (1)

[Claims] (1) In a tape recorder having a mechanism for operating a playback operation lever in conjunction with a recording operation lever, an automatic song selection state is obtained by operating the playback operation lever and the fast forward (or rewind) operation lever, in which the recording and a lock lever that locks the operation position of each reproduction operation lever; an electromagnet that is attached to a fixed plate and is energized when the reproduction operation lever and the fast forward (or rewind) operation lever are operated; and an electromagnet facing the electromagnet. a movable plate having a suction piece that locks the operation position of the fast forward (or rewind) operation lever at the suction position of the suction piece; and a movable plate that moves the movable plate to the suction position in response to operation of the recording operation lever. and a means for moving the recording operation lever and the fast forward (or rewind) operation lever at the same time by mistake, the electromagnet is energized but the attraction piece cannot be attracted. A tape recorder operating device featuring: