JP2995810B2 - Switching device for video tape recorders - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switching device for a video tape recorder that operates a tape traveling system of the video tape recorder.

[Summary of the Invention]

A switching operation device for a video tape recorder according to the present invention is provided with a changeover switch for switching a mode at a central portion, for example, via a push button mechanism, and a plurality of control circuits which are reversibly rotatable and located on the outer periphery of the changeover switch. And a rotating operation body for switching between the first and second modes. The rotating operation body is rotated in accordance with the first and second modes switched by a mode changeover switch. In the first mode, a reproduced image is output. In the second mode, fast-forward and rewind control are performed without outputting a playback image, thereby improving operability and simplifying the configuration of the switching operation device. It was done.

[Conventional technology]

2. Description of the Related Art Conventionally, electronic devices such as video tape recorders have a playback (PL
AY), stop (STOP), fast forward (FF), rewind (REW),
Search (SEARCH), pause / still image (PAUSE / STIL
L), frame-by-frame (FRAME by FRAME), slow (SLOW), etc. There are many control operation switches to switch,
The operation switches are arranged on the front side of the video tape recorder housing so as to be easily operated.

[Problems to be solved by the invention]

Thus, in a conventional video tape recorder,
Since a large number of control operation switches corresponding to each operation are provided on the front side of the housing, the configuration on the front side is complicated, and a required switch is selected from a large number of switches in operation. In addition, erroneous operations are repeated, especially in the use of a person who is complicated in operation and is unfamiliar with handling, and there is a problem in operability.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and enables operability to be improved by enabling switching control of a tape running system of a video tape recorder with a small number of operations, and cost reduction by simplifying the configuration. It is another object of the present invention to provide a switching operation device for a video tape recorder which is enabled.

[Means for solving the problem]

In order to achieve the above object, the present invention provides a mode changeover switch in the center, and switches a plurality of control circuits corresponding to the mode changeover of the changeover switch by reversible rotation at the outer periphery of the changeover switch. In a switching operation device for a video tape recorder having a rotating operation body to be operated, the mode changeover switch is provided with two first and second changeover switches to be depressed, and the first and second mode changeover switches are provided. By operating the change-over switch, the first video signal for outputting the reproduced video is output.
Mode and the second mode in which the reproduced video is not output. In the first mode, the variable speed reproduction control while outputting the reproduced video is performed by rotating the rotating operation body. In the second mode, a fast-forward and rewind control is performed without outputting a reproduced image by rotating the rotating operation body.

[Action]

In this configuration, the switching operation device for a video tape recorder of the present invention having the above-described configuration operates in the first mode in which a playback image is output by pressing the first changeover switch of the mode changeover switch. By rotating the rotating operation body, variable speed reproduction control can be performed while outputting a reproduced image. Further, in the second mode in which the playback image is not output by pressing the second changeover switch, the tape fast-forward control or the rewind control is performed without outputting the playback image by rotating the rotating operation body. It can be carried out.

As described above, since each operation can be controlled by the switching operation of the mode switch and the forward / reverse rotation operation of the rotation operation body, the switching operation button corresponding to each operation control becomes unnecessary, and the configuration is reduced. The simplification is remarkably simplified, and the visual and sensory understanding of the control operation is facilitated, so that the operability is remarkably improved.

〔Example〕

 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 shows a first embodiment, in which (1) shows an entire operation switch as a switching operation device, and a push-type changeover switch (3) is provided at the center of a switch base (2). A control operation body (4) of a rotary encoder or a rotary variable resistor type is arranged on the outer peripheral side of the changeover switch (3).

In this configuration, the changeover switch (3) has its operation shaft (5) protruding from the front surface of the switch body (2), while the control operation body (4) has a reversible rotation operation system and a central angle of approximately 160 °. An arc-shaped resistor (6) is provided in the range, and the resistor (6) is turned around the operation shaft (5) of the changeover switch (3) around the operation shaft (5). The slider (8) attached to the rotating body (7) is in sliding contact with the rotating body (7).

An operation ring (9) is fixed to the periphery of the tip of the rotating body (7), and the operation shaft (5) of the changeover switch (3) is located at the center of the front side of the operation ring (9). A push button (10) is mounted, and terminals (11a) and (11a) of a changeover switch (3) are provided on side surfaces of the switch body (2).
The terminal (12a), (12b) and (13) of (11b), the resistor (6) of the control operation body (4) and the slider (8) are led out and fixed.

The operation switch (1) configured in this manner is, for example, a group of operation switches for a tape running system of a video tape recorder, such as playback (PLAY), stop (STOP), fast forward (FF), rewind (REW), and search ( SEARCH), pause / still image (P
AUSE / STLII), speed change (SLOW, × 1, × 2), etc. can be applied to control operation switches. In this case, the operation switch (1) is switched to apply to the operation switch of the tape running system of the video tape recorder. Play switch (3) (PLA
Y), connected to a control circuit for stopping (STOP), while the control operation body (4) is connected to a speed change system of the tape running, that is, a control circuit for varying the reproduction time with respect to the recording time of the tape.

As described above, the operation switch (1) connected to the video tape recorder is in a stop (STOP) state when the changeover switch (3) is not operated, and the rotating body (7) of the control operation body (4) is in this state. Is turned to the right (in the direction of the arrow a in FIG. 2A) by the operation ring (9), and the slider (8) moves relative to the resistor (6) in a rotation range of approximately 40 ° to 60 °. When the tape is slid, the tape traveling system control circuit is fast-forwarded (FF) controlled, and the rotating body (7) is rotated leftward (in the direction of the arrow b in FIG. 4A) to a position of approximately −40 ° to −60 °. When the slider (8) is slid with respect to the resistor (6) within the range, rewinding (REW) control is performed (see FIG. B).

By pressing the changeover switch (3), the video tape recorder is switched to playback (PLAY). In this state, the rotating body (7) of the control operating body (4)
When the tape is sequentially rotated rightward (arrow a direction) from the center position as shown in FIG.
The transmission is controlled in the forward direction from L), and the rotation is controlled in the reverse direction from the still image when the rotating body (7) is sequentially rotated leftward from the center position (the direction of the arrow b in the figure).

That is, in a state where the changeover switch (3) is switched to the reproduction (PLAY), the rotating body (7) of the control operating body (4) is in the third position.
As shown in FIG. B, a still image (STIL
L) The rotating body (7) is controlled to move rightward (arrow a in FIG.
Direction) in a rotation range of approximately 10 to 30 degrees, a slow (SLOW) control state, and in a rotation range of approximately 30 to 40 degrees, a constant speed control state.
Double speed control in the rotation range of 40 to 50 degrees, approximately 50 to 60
The shift control is performed so as to be in a cue control state in the rotation range of ゜.

Further, by rotating the rotating body (7) leftward from the still image control position (the direction of the arrow b in FIG. 3A), the rotation range is substantially −10 ° to −30 °, contrary to the above-described case. SLOW
Control state, constant speed control state in a rotation range of approximately -30 to -40 degrees, double speed control state in a rotation range of approximately -40 to -50 degrees, rotation of approximately -50 to -60 degrees In the range, the shift control in the reverse direction is performed in the REVIEW control state.

As described above, when the push button (10) is not pressed, that is, when the video tape recorder is stopped, the operation ring (9) rotates the rotating body (7) clockwise to control the fast-forward, and when the video tape recorder is rotated left, the rotation is controlled. Rewind control is performed.

Then, by pressing the push button (10), in the playback state of the video tape recorder, when the rotating body (7) is rotated rightward by the operation ring (9), the speed is controlled so that the tape running system sequentially increases in speed. When the rotator (7) is returned to the neutral position, a transition is made to a still image.

When the camera is further rotated rightward from the fast-forward state, the state transits to a picture search. When the apparatus is further rotated leftward from the rewind state, the state transits to a picture search in the reverse direction and picture control is performed in both directions.

Further, when the rotating body (7) is rotated leftward by the operation ring (9), the speed change control is performed in a direction opposite to the above-described case.

As described above, the control of the tape running system of the video tape recorder is performed by pressing the push button (10) and pressing the push button (10).
The operation can be performed by rotating the operation ring (9), which improves the operability as compared with the case where a large number of push buttons are operated, and the cost can be reduced because a large number of push buttons are integrated. It is possible to reduce the size and to improve the appearance of the operation panel.

FIG. 4 and FIG. 5 show another embodiment of the present invention, in which this embodiment is provided with two mode changeover switches to be pressed.

That is, the operation switch (21) of the present example is a switch base (2
The first and second change-over switches (23) and (2)
4) is arranged, and a rotary variable resistor type control operation body (25) is installed on the outer peripheral side of the changeover switches (23) and (24).

In this configuration, the respective operation shafts (26) and (27) of the two changeover switches (23) and (24) are separated from the center window (28a) formed on the front plate (28) of the switch base (22) by a predetermined distance. The central window (28a) has a pair of spring-like pieces (29a) and (29b) which reach the substantially central portion at the edges in the direction in which the operating shafts (26) and (27) face each other. ) And (30
a) and (30b) are extended. On the other hand, the control operation body (2
5) is a reversible rotation operation method similar to the above-described embodiment, and is operated by rotating the center angle in a range of approximately 160 °.
1) Slider S sliding on [(31a), (31b)]
The rotating body (32) with the two switches (23) and (2
4) is arranged around. A pair of mounting pieces (32a) and (32b) protrude from the rotator (32) at positions diametrically opposed to the front surface and at different distances from the center so as to be in front of the switch base (22). Projection holes (33a) and (33b) are formed in the face plate (28) so as to face each other in a substantially semicircular shape having different diameters with respect to the center window (28a).

Then, the mounting pieces (32a), (32b) of the rotating body (32)
An operation ring (34) is attached to the front side of the front plate (28) of the switch base (22), and in this state, both changeover switches (2) are opened through the central opening (34a) of the operation ring (34).
The operation shafts (26) and (27) of 3) and (24) are projected, and the above-mentioned spring-like pieces (29a) and (29b) on the front plate (28) side
And (30a) and (30b) are displayed.

After attaching the operation ring (34) in this way, the first
Of the pair of engaging members (36a) and (36b) having the push button (35) fixed to the rear side so as to protrude from the inner end face thereof, that is, the operating shaft (26) of the first changeover switch (23). ), And is fitted and engaged with the spring-like pieces (30a) and (30b) on the side opposite to the first changeover switch (23). Contact.
Next, a pair of engaging members (38a) and (38b) having the second push button (37) fixed to the back side in the same manner as described above are fitted to the other spring-like pieces (29a) and (29b). The switch is mounted in correspondence with the second changeover switch (24), and its operating shaft (2
The back side is brought into contact with the front end face of 7).

As described above, the operation switch (21) is configured by attaching the operation ring (34) and the first and second push buttons (35) and (37) to the switch base (22).

When the first push button (35) is pressed in the operation switch (21) of the present embodiment configured as described above, the first push button (35) is pushed through one of the engagement members (36a) and (36b). When the operating shaft (26) of the first changeover switch (23) is pressed down by using the bases of the spring-like pieces (30a) and (30b) as a fulcrum, the first changeover switch (23) performs a switching operation. Is done.

Also, when the second push button (37) is pressed, the second push button (37) is similarly moved to the other spring-like pieces (29a), (29b).
The second changeover switch (24) moves down with the base of
Is pressed, and the second changeover switch (24) is switched.

On the other hand, when the operation ring (34) is rotated, the control operation body (2
The rotating body (32) of (5) is rotated via a pair of mounting pieces (32a) and (32b), and this rotation is performed by the mounting pieces (32a) and (32b) being turned on the front plate (22) of the switch base (22). By moving along the substantially semicircular guide holes (33a) and (33b) of 28), approximately 180
In the same manner as in the above-described embodiment, the slider slides on the resistor (31) in a reversible manner within the range of ゜. By turning symmetrically to the left, variable control of the resistance value is performed.

The control switch (21) of the present embodiment configured as described above corresponds to the reversible operation of the control operating body (25) corresponding to each of the first and second changeover switches (23) and (24). By doing so, control twice the switching control operation by the control switch (1) of the above-described embodiment can be performed.

Therefore, when the present invention is applied to a control switch of a video tape recorder, control of a tape traveling system can be performed as well as control of other adjustment mechanisms in the same manner as in the above-described embodiment.
Since various controls can be performed only by providing one control switch in the video tape recorder, the configuration of the control unit of the video tape recorder is further simplified, the operability is further improved, and the cost can be reduced. .

Although the switching operation device according to the present invention is applied to the control switch of the video tape recorder, the control switch of other various electronic devices, particularly the control switch of the electronic device requiring the reversible control operation, has been described. It is effective when applied to

The present invention is not limited to these embodiments, but can be variously modified without departing from the gist of the present invention.

〔The invention's effect〕

As described above, the switching operation device for a video tape recorder according to the present invention includes a first switch for depressing a changeover switch provided with a rotation operation body that is located on the outer periphery and that performs a reversible rotation operation.
And two second changeover switches, and the first and second changeover switches are provided.
In the first mode, the rotary operation body is rotated by operating the changeover switch to switch between the first mode in which the reproduced video is output and the second mode in which the reproduced video is not output. In the second mode, fast-forward and rewind control in which a reproduced image is not output by performing a rotating operation of the rotating body is performed by outputting a reproduced image. By simply performing the switching operation of the changeover switch and the forward / reverse rotation operation of the rotating operation body, the variable speed reproduction control can be performed while outputting the reproduced video, and the fast-forward or rewind control of the tape can be performed. Therefore, operation buttons corresponding to various operation controls such as variable-speed playback, tape fast-forward, and rewind become unnecessary, and the configuration is significantly simplified, and visual and sensory understanding of control operations is facilitated and operation is facilitated. The performance is significantly improved.

[Brief description of the drawings]

FIG. 1 is a perspective view, partially cut away, of an example of a switching operation device according to the present invention, FIG. 2 and FIG. 3 are operation explanatory diagrams for explaining the operation of an example of the same, and FIG. FIG. 5 is a perspective view, and FIG. In the figure, (2) and (22) are switch bases, (3), (23),
(24) is a changeover switch, (4) and (25) are control operation bodies,
(9), (34) are operation rings, (10), (35), (37)
Is a push button.

──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Sho-62-197230 (JP, U) Japanese Utility Model Sho 59-148,732 (JP, U) Japanese Utility Model Sho-57-67348 (JP, U) (58) Field (Int.Cl. ⁶ , DB name) G11B 15/10

Claims (1)

(57) [Claims] A mode switching switch is disposed at a central portion, and is located on the outer periphery of the switching switch, and is reversibly rotated to switch a plurality of control circuits in response to mode switching of the switching switch. In the changeover device for a video tape recorder having a body, the mode changeover switch includes two first and second changeover switches to be pressed, and operates the first and second changeover switches. By doing so, it is possible to switch between the first mode in which the reproduced video is output and the second mode in which the reproduced video is not output, and in the first mode, the rotary operation body is rotated. In the second mode, fast-forward and rewind control is performed without outputting a reproduced image by rotating the rotating operation body while outputting a reproduced image. Switching operation apparatus for a video tape recorder, characterized in that the Migihitsuji.