JPS6023776Y2 - tape recorder - Google Patents

Description

[Detailed description of the invention] The present invention relates to a tape recorder configured to perform recording operations by operating both a recording operation member and a playback operation member, and its purpose is to prevent recording operations from being performed in the playback state. The object of the present invention is to skillfully utilize a mechanism to prevent erroneous erasure so that when the two operating members are operated together from a stopped state, the recording state is always smoothly brought to a recording state and this state is maintained.

Conventional tape recorders of this type record, play,
When the two operating members are operated at the same time, the recording operation is performed without any problem, but if there is a timing lag between the operations of these two operating members, for example, the playback operating member may be operated after slightly operating the recording operating member. Once started, the above-mentioned accidental erasure prevention mechanism sometimes interfered with the operation and made it impossible to shift to the recording operation state.

Therefore, the present invention aims to ensure that the recording state can be reliably transferred no matter how such a timing shift occurs, and also to reliably prevent a recording operation from the reproducing state.

An embodiment of the present invention will be described below with reference to the drawings.

In the figure, 1 is a regeneration operation rod that is slidable in the directions of arrows A and B and is always biased in the direction of arrow B by a spring (not shown), and 2 is normally connected to arrow C by the force of a spring (not shown).
The head substrate is moved in the direction of the arrow A (the interlocking mechanism is not shown) in conjunction with the operation of the reproduction operation rod 1 in the direction of the arrow A.

A rectangular recess 2a is provided in the side edge of the head substrate 2, and a protruding piece 3a of a lock rod 3 is engaged with this recess 2a with play.

This lock rod 3 is the shaft 4. Arrow C, D by 5
It is slidable in the direction, and a protrusion 3 provided at one end of the
b is located above the recording operation rod 6.

Similar to the playback operation rod 1, the recording operation rod 6 has arrows A,
It is slidable in the direction B and is always biased in the direction of arrow B by a spring (not shown).

An engaging plate 8 is mounted on the recording operation rod 6 so as to be rotatable around a shaft 7. As shown in FIG.

This engagement plate 8 is biased by a tension spring 9 suspended between it and the recording operation rod 6, and the pin 10 provided on the recording operation rod 6 comes into contact with the left side edge of the hole 11 of the engagement plate 8, and its position is regulated. ing.

Further, a protruding piece 8a is bent and formed at the tip of this engagement plate 8, and this protruding piece 8a is formed on the protruding piece 3 of the lock rod.
It is arranged close to b.

Note that the regeneration operation rod 1 is locked in the operation position by the action of a locking mechanism (not shown).

The operation of the above embodiment will now be explained.

First, in the stopped state shown in FIG. 1, as is clear from the figure, the protrusion 3a of the lock rod 3 is at a position slightly away from the movement path of the protrusion 8a of the engagement plate 8, and the regeneration operation rod 1,
All of the recording operation rods 6 are in an operable state.

When the playback operation rod 1 is pressed in the direction of arrow A in this stopped state, the head substrate 2 slides in the direction of the arrow, and the head and pinch roller (not shown) enter the cassette to enter the playback state.

At this time, the regeneration operation rod 1 is locked at the operation position by a locking mechanism (not shown).

Furthermore, as the head substrate 2 slides in the direction indicated by the arrow, the lock rod 3 is moved in the direction indicated by the arrow due to a timing shift corresponding to the gap between the recess 2a and the protrusion 3a engaged here. Therefore, in the regenerated state, the protruding piece 3b of the lock rod 3 is brought onto the moving path of the protruding piece 8a of the engaging piece 8 in the direction of arrow A.

If the recording operation rod 6 is accidentally pressed in the direction of arrow A in such a reproducing state, the engagement plate 8 moves together with the recording operation rod 6, and its protrusion 8a hits the protrusion 3b of the power button lock 3. The recording operation rod 6 is in contact with the recording operation rod 6 to prevent further operation.

Therefore, it is not possible to directly shift from the reproduction state to the recording state, and erroneous erasure can be prevented.

Next, when the recording operation rod 6 is pressed a little from the stopped state shown in FIG. comes into contact with the protruding piece 8a of the engagement plate 8, but at this time, the engagement plate 8 absorbs the amount of collision with the lock rod 3 by rotating clockwise against the force of the spring 9. , the rod 3 and the engagement plate 8 will not be damaged at all.

When the recording operation rod 6 and the playback operation rod 1 are pressed further from this state, the protrusion 8a of the engagement plate 8 climbs over the protrusion 3a of the lock rod 3, and then the engagement plate 8 is returned to its original position by the force of the spring 9. As shown in FIG. 3, the protruding piece 8a of the engagement plate 8 is engaged with the protruding piece 3a of the lock rod 3, and the recording operation rod 6 is locked in the operating position.

Playback, recording, the two operating rods are locked in the operating position to enter the recording state.

The recording operation rod 6 is operated in the direction of arrow A to switch the electric circuit to a recordable state.

It goes without saying that the recording state shown in FIG. 3 can be achieved by pressing the reproducing operation rod 1 in a state in which the recording operation rod 6 is fully pressed to the operating position in advance.

Furthermore, even when a timing difference occurs such that the playback operation rod 1 is moved before the recording operation rod 6, play is provided between the protrusion 3a of the lock rod 3 and the recess 2a of the head substrate 2. As a result, the start of movement of the lock rod 3 is delayed, the above-mentioned timing deviation is absorbed, and a smooth transition to the recording state is possible.

As explained above, according to the tape recorder of the present invention,
An erroneous erasure prevention mechanism that prevents a recording operation from a playback state is utilized to hold the recording operation member in an operating position, and a retaining member constituting this mechanism is rotatably provided on the recording operation member,
Since the engaging member does not prevent the locking member from moving in conjunction with the playback operation, the tape recorder can smoothly transition to the recording state regardless of the timing difference between the recording and playback operation of the two operating members. can.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing a stopped state of a tape recorder according to an embodiment of the present invention, FIG. 2 is a plan view showing one state of the tape recorder in the process of transitioning from a stopped state to a recording state, and FIG. FIG. 2 is a plan view showing recording of the same tape recorder. 1...Reproduction operation member, 2...Head board, 3...Lock rod, 6...Recording operation member, 8...Register plywood.

Claims (1)

[Scope of utility model registration request] In a tape recorder having a recording operation member and a playback operation member, and configured to perform a recording operation by operating these two members together, the recording operation member is rotatably provided and an elastic member is used to perform a unidirectional operation. providing an engaging member biased by the user, and a locking member for moving from a first position to a second position in conjunction with the operation of the playback operation member and locking the recording operation member at the operation position;
When the recording operation member is operated in the playback state in which the playback operation member is operated and the lock member is brought to the second position, the engagement member provided on the recording operation member comes into contact with the locking member and the recording operation member is moved. Even if the engaging member comes into contact with the locking member when the recording operating member or the reproducing operating member is operated from a stopped state when the operation is blocked, the engaging member rotates to allow the locking member to move, and the engaging member is locked. A tape recorder configured to be locked to a member such that a playback operation member and a recording operation member are both locked in an operation position to enter a recording state.