JPH0345291Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a tape recorder operating device.
In particular, the present invention relates to a tape recorder operating device that enables tape rewinding, fast forwarding, etc. during playback.

[Prior Art] Conventionally, in a tape recorder, in order to shift from a playback state to a rewind or fast forward state, it is necessary to once switch to a stop state, and this operation is troublesome. Recently, a tape recorder operating device has been developed which allows a direct transition from the playback state to the rewind state as shown in FIG. 4 (Japanese Patent Publication No. 18363/1983).

In FIG. 4, 61 is a head mounting plate, 62
is a playback operation lever, 63 is a stop operation lever, 64
65 is a pressure spring, 66 is a tension spring, 67 is a holding lever, 68, 69, 70
71 is a rotating lever, 71 is a rewind reel stand, and 72 is a take-up reel stand.

In this device, each operating lever 62, 63, 64
When the head mounting plate 61 is in the return position, the tension spring 66 urges the head mounting plate 61 toward the return position. When the playback operation lever 62 is pushed in, the lever 62 is locked at the pushed-in position by the holding lever 67. In this state, the head mounting plate 61 is urged forward (upward in the drawing) by the pressing force of the pressing spring 65 against the tensile force of the tension spring 66, and is held at the pushed-in position. This is the playback state. When the rewind operating lever 64 is pushed in from this playback state, the rotating levers 68, 69, and 70 rotate, and the pin 73 provided at the center of the rotating lever 69 comes into contact with the head mounting plate 61. Push the mounting plate 61 backward. As a result, the head mounting plate 61 moves rearward against the pressing force of the pressing spring 65, that is, retreats. In this state, the rewinding operation is performed by rotating the rewinding reel stand 71.
At this time, the head mounting plate 61 is urged forward by the difference between the pressing force of the pressing spring 65 and the tensile force of the tension spring 66.

[Problems to be solved by the invention] However, this type of device has the following problems. That is, two springs are required: a pressure spring 65 for urging the head mounting plate 61 forward and a tension spring 66 for urging it backward. Here, the pressure spring 65 needs to bias the head mounting plate 61 forward with a sufficiently large force in order to bring the head into close contact with the cassette tape, and other springs (various levers 63, 64, 68)
Requires a large spring constant compared to other return springs (such as other return springs). Furthermore, since the pressure spring 65 has a large spring constant, the tension spring 66 that biases the pressure spring 65 in the opposite direction also requires a relatively large spring constant. That is, in order to bias the head mounting plate 61, two springs 65 and 66, which require a larger spring constant than other springs, are required, which causes an increase in manufacturing costs.

This invention was made in consideration of the above circumstances,
The object is to provide a tape recorder operating device that can reduce manufacturing costs by using only one spring for biasing the head mounting member forward or backward.

[Means for Solving the Problems] The gist of the present invention is to use a single spring to move the head mounting member into the pushed position (regeneration position) or return position (non-regeneration position) depending on the operating state of the regeneration operation member. The point is that it can be selected and energized.

That is, the present invention has a head mounting member that is slidably disposed on a fixed substrate, and when in the return position, contacts the head mounting member to hold the member in the return position, and when in the push-in position, the head mounting member is held in the return position. a regeneration operation member that holds the head attachment member in its pushed-in position; a locking mechanism that locks the regeneration operation member in its pushed-in position; and a locked state of the regeneration operation member by the locking mechanism when the head attachment member is pushed in. a stop operation member for releasing the playback operation member, an operation member that is provided so as to be freely pushed in and is used for rewinding or fast-forwarding, and the operation member is pushed in while the playback operation member is locked at the push-in position. A tape recorder that is equipped with a force transmission mechanism that moves the head attachment member to a rewind mode position or a fast forward mode position by the pushing force of the operating member, and enables a direct transition from a playback state to a rewind or fast forward state. In the operating device, a rotating member is rotatably attached to a part of the regeneration operating member and has one end locked to the fixed base plate, and the other end of the rotating member is connected to the head mounting member. By providing a spring stretched between the regeneration operation member and the regeneration operation member, when the regeneration operation member is locked in the push-in position, the spring urges the head mounting member toward the push-in position and also prevents the regeneration operation member from being engaged. When the lock is released, the spring urges the regeneration operation member and the head mounting member toward the return position via the rotating member.

[Function] With the above configuration, when the regeneration operation member is in the return position (stop mode), the biasing force of the spring acts to hold the regeneration operation member and the head mounting member at the return position. Further, when the playback operation member is locked at the pushed-in position (playback mode), the biasing force of the spring acts to hold the head mounting member at the pushed-in position. Furthermore, if the rewind operating member or fast forward operating member is pushed in while the playback operating member is locked in the push-in position (rewind mode or fast forward mode), the head mounting member will resist the bias of the spring. Retracts to rewind mode position or fast forward mode position. When the rewind operation member or the fast forward operation member is stopped from being pushed in, the head mounting member automatically returns to the head push-in position (playback mode) due to the bias of the spring.

[Examples] Hereinafter, details of the present invention will be explained by referring to illustrated examples.

FIG. 1 is a plan view showing a schematic configuration of a tape recorder operating device according to an embodiment of the present invention. In the figure, reference numeral 10 denotes a head mounting plate (head mounting member), and this head mounting plate 10 is disposed on a fixed substrate (not shown) so as to be slidable back and forth (up and down in the drawing). 20 is a regeneration operation lever (regeneration operation member), 30 is a stop operation lever (stop operation member),
40 is a rewind operation lever (rewind operation member), and each of these levers 20, 30, and 40 is also provided so as to be freely movable forward and backward.

At the front of the head mounting plate 10 are a recording/playback head 11, an erasing head 12, and a pinch roller 13.
is installed. A rear portion of the head mounting plate 10 is provided so as to partially extend, and a rear end portion 15 of this extended portion is formed to protrude perpendicularly from the plane of the head mounting plate 10.

There is a support pin 2 near the tip of the playback operation lever 20.
1 is fixed, and a rotating member 51 is rotatably attached to this support pin 21. One end of the rotating member 51 is a stopper 5 fixed to a fixed base plate.
It is locked to 2. A tension spring 53 is suspended between the other end of the rotating member 51 and the rear end portion 15 of the head mounting plate 10. Playback control lever 20
A protrusion 22 that protrudes to the left in the drawing and a protrusion 23 that protrudes to the right in the drawing are formed.
When the regeneration operation lever 20 is in the return position, the regeneration operation lever 20 is urged backward by the urging force of the spring 53, so that the protrusion 22 comes into contact with the rear end 15 of the head mounting plate 10. , to hold the head mounting plate 10 in the return position.

To the right of the playback operation lever 20, an L-shaped holding lever 31 is attached so as to be rotatable about a support pin 32. When the regeneration operation lever 20 is pushed in, the holding lever 31 is engaged with the protrusion 23 of the regeneration operation lever 20.
The push-in state is maintained, and the lock is released by pushing the stop operation lever 30. That is, the holding lever 31, the support pin 32, a stopper 33 and a spring 34, which will be described later, constitute a locking mechanism.

Further, a rotary lever 41 is provided on the left side of the reproduction operation lever 20 so as to be rotatable about a support pin 42 . When the head mounting plate 10 is in the push-in position, this rotating lever 41 is driven by pushing the rewinding operation lever 40 and comes into contact with the rear end 15 of the head mounting plate 10 to move the head mounting plate 10 backward. It is something. That is, a rotating lever 41, a support pin 42, and a stopper 43, which will be described later.
and spring 44 constitute a force transmission mechanism.

In the figure, 16 is a guide pin for regulating the sliding direction of the head mounting plate 10, 17 is a capstan, 33 is a stopper for the holding lever 31, 34 is a spring for biasing the holding lever 31 clockwise, 35 is a spring for returning the stop operation lever 30; 43 is a stopper for the rotating lever 41; 44
Reference numeral 45 indicates a spring for urging the rotation lever 41 counterclockwise, and reference numeral 45 indicates a spring for returning the rewind operation lever 40.

Next, the operation of the apparatus configured as described above will be explained.

First, in the stop mode in which the operating levers 20, 30, and 40 are all in the returned state, as shown in FIG.
is urged backwards, which causes the head mounting plate 1 to
At 0, the rear end portion 15 is biased rearward. Therefore, the head mounting plate 10 is held at the return position.

When the reproduction operation lever 20 is pushed in, the protrusion 23 of the reproduction operation lever 20 is locked by the holding lever 31 as shown in FIG. 2, and the reproduction mode is entered. In this state, the rotating member 51 rotates clockwise about the stopper 52. Therefore, the rotating member 51
The other end moves upward, stretching the spring 53. As a result, the rear end 1 of the head mounting plate 10
5 is urged forward, and the head mounting plate 10 is urged forward and held in the pushed-in position. The heads 11, 12 and the pinch roller 13 come into contact with a cassette tape (not shown).

Note that when the stop operation lever 30 is pushed in the regeneration mode, the regeneration operation lever 20 is moved by the holding lever 31.
Since the lock is released, the playback operation lever 20 returns to the return position by the biasing force of the spring 53 applied via the rotation lever 51, and thereby the head mounting plate 10 also returns to the return position.

Next, in the playback mode, when the rewind operation lever 40 is pushed in, the rotating lever 41 rotates, and the tip of the lever 41 pushes the rear end 15 of the head mounting plate 10 backward. As a result, the head mounting plate 10 moves backward against the biasing force of the spring 53. This is rewind mode. In this state, head 1
1, 12 and the pinch roller 13 are slightly separated from the cassette tape, and a rewinding operation is performed by driving a rewinding reel stand (not shown) or the like. In addition, when the rewind operation lever 40 is stopped being pushed in the rewind mode, the rotation lever 41
is returned by the spring 44, and the head mounting plate 10 is returned to the pushed-in position by the biasing force of the spring 53. In other words, it will automatically return to playback mode.

As described above, according to this embodiment, the transition from the reproduction mode shown in FIG. 2 to the rewind mode shown in FIG. 3 can be performed simply by pushing the rewind operating lever 40. That is, the transition from the playback mode to the rewind mode can be performed directly without going through the stop mode, and the operation is extremely simple. In this case, only one spring 53 is required for biasing the head mounting plate 10 forward and backward, so that manufacturing costs can be reduced. In addition, because only one spring 53 is required, which plays the important role of urging the head mounting plate 10, it has advantages such as improved reliability compared to conventional devices that require two springs of this type. There is also.

Note that the present invention is not limited to the embodiments described above, and can be implemented with various modifications without departing from the gist thereof. In the embodiment, the transition from the playback mode to the rewind mode has been described, but the transition from the playback mode to the fast forward mode can be similarly performed. Further, the means for locking the regeneration operation member in the pushed-in position, the means for retracting the head mounting member against the bias of the spring, etc. can be changed as appropriate depending on the specifications. Furthermore, the spring stretched between the other end of the rotating member and the head mounting member is not limited to a coil spring.
It may also be a leaf spring.

[Effects of the invention] As detailed above, according to the invention, in a tape recorder operating device that can directly shift from play mode to rewind or fast forward mode without going through stop mode, the head mounting member Since only one spring is required for biasing, manufacturing costs can be reduced and reliability can be improved.

[Brief explanation of the drawing]

1 to 3 each show a schematic configuration of a tape recorder operating device according to an embodiment of the present invention. FIG. 1 is a plan view showing a stop mode, and FIG.
3 is a plan view showing the playback mode, FIG. 3 is a plan view showing the rewind mode, and FIG. 4 is a plan view showing the schematic configuration of the conventional device. 10...Head mounting plate (head mounting member),
15...Rear end portion, 20...Regeneration operation lever (regeneration operation member), 21...Support pin, 22, 23...
Projection portion, 30... Stop operation lever, 31... Holding lever, 40... Rewinding operation lever, 41... Rotating lever, 51... Rotating member, 52... Stopper, 53... Tension spring.

Claims (1)

[Scope of utility model registration request] a head mounting member slidably disposed on a fixed substrate; when in the return position, the head mounting member contacts the head mounting member to hold the member in the return position; and when in the push-in position, the head mounting member is held in the return position; A regeneration operation member that holds the regeneration operation member in the pushed-in position, a locking mechanism that locks the regeneration operation member in the push-in position, and a stop that releases the locked state of the regeneration operation member by the locking mechanism when the regeneration operation member is pushed in. an operating member, a rotating member rotatably attached to the regeneration operating member and having one end locked to the fixed base plate, and a rotating member extending between the other end of the rotating member and the head mounting member; When the playback operation member is locked in the push-in position, the head mounting member is urged toward the push-in position, and when the playback operation member is unlocked, the head attachment member is biased through the rotating member. a spring that biases the playback operation member and the head attachment member toward the return position; an operation member that is provided so as to be freely pushed in and is used for rewinding or fast-forwarding; and the playback operation member is locked in the push-in position. a force transmission mechanism that moves the head mounting member to a rewind mode position or a fast forward mode position against the bias of the spring by the pushing force of the operation member when the operation member is pushed in the state where the head is pressed; A tape recorder operating device comprising: