JPH0239685A - Recording and reproducing device with video display device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Field of Application] The invention has not yet been made. LDP
) etc., and particularly relates to a shaft support structure that is easy to use, easy to assemble, and highly reliable.

[Prior Art] As described in Japanese Patent Application Laid-Open No. 62-252588, a conventional device is a type of bag in which a liquid crystal video display device and a VTR are connected by a hinge. Video Display Device via Hinge In the above prior art, a first shell housing a liquid crystal video display device and a second shell housing a VTR'JA unit are connected by two hinges. Although he has a strong point. (1) The structure for setting the opening angle of the first shell with respect to the second shell is not considered, and the first shell cannot be fixed at an angle that is easy to see. (2) The method of connecting or opening the first shell and the second shell has not been taken into account, so when carrying the device, the first shell may open against the second shell. is.

(3) The connection method between the first shell of the liquid crystal video display device and the second shell that connected the VTR device was not considered, and the VT
It is unclear how the contents of the R device will be displayed on the LCD video display device, resulting in a difference of 4 points.

Furthermore, in the video tape recorder with monitor disclosed in Utility Model Application No. 61-106971, the problems of the conventional example (
Proposals have been made that consider each of 1), (2), and (3), but there are additional problems. (4) The folding angle of the monitor unit is set to 90 degrees or less, and the use of the monitor unit in a bow of 90 degrees or more like the bag shown in the first conventional example is not taken into account. (5) Therefore, the liquid crystal display surface is always exposed to the outside.

No consideration was given to dust, fingerprints, scratches, etc. (6) Also, the wiring hole is passed through the pivot member in the vertical direction, and the wiring that sends the image signal of the VTR main body to the monitor unit is connected to the upper edge of the wiring hole when the monitor unit is rotated.
It has a structure that is repeatedly bent, and insufficient consideration has been given to the reliability of the wiring.

In addition, the light transmittance of liquid crystal displays is low, at less than 5%.
In order to obtain a bright display screen, it is necessary to make the backlight brighter, but making the backlight brighter generates a lot of heat, necessitating an appropriate air cooling structure. This problem can be solved by opening a ventilation hole in the shell of the image display device, but if this ventilation hole is left open all the time, a lot of dust can get in, and the backlight is covered with cotton, making it difficult to handle. A video display device that is easy to assemble, easy to assemble, and reliable A torsion coil spring is used, and the torsion coil spring has a dead point between the direction in which the image display device is closed and the direction in which it is opened. This is achieved by adopting a two-stable point type usage method in which the image display device is energized.Furthermore, by using a damper in combination, it is possible to eliminate the collision noise that occurs when the video display device is opened or closed.

Therefore, the video display device can be smoothly opened and closed with a single touch, making it easier to use.

The second of the above objectives is to change the structure of the hinge by providing a protrusion at the rear end of the video recording/playback device, and a recess into which the protrusion fits into the video display device, so that the protrusion and the recess are separated. A support shaft is skewered from the side, and the tip of the support shaft is kept within the video display device to form a space where the support shaft is partially absent on the axis of the support shaft inside the video display device. This is accomplished by drilling holes coaxially with the support shaft in both side walls of the video recording/reproducing device adjacent to the side wall, and wiring signal lines and power lines through these adjacent holes.

The third purpose is to provide a plurality of ventilation holes on the surface of the video display device adjacent to the video recording/playback device, so that the ventilation holes are exposed or formed to the outside when the video display device is opened. This is achieved by

[Operation] The torsion coil spring is activated when the video display device is open (
A biasing force acts in the surface state of the state in which the image display device is closed (in use state) and the state in which the video display device is closed (in the non-use state l), and a dead point (biasing force has no effect). As a result, the video display device is held at a fixed angle when in use, so there is no risk of the video display device falling over even if a shock is accidentally applied to the main body. In addition, when the video display device is not in use, the video display device is suppressed and held by the video recording and reproducing device, so there is no fear that the video display device will open even when the video display device is carried around in a bag. Also,
It is easy to use because it only requires one action (1 step G!J operation) to raise the video display device, rather than a two-step operation (two-step operation) of unlocking and raising the video display device.

Furthermore, the damper is either an air damper or a friction damper, and both types have resistance that increases in proportion to speed, so when the display device is at its maximum speed, when it is fully open or fully closed, the damper's resistance is at its maximum. As a result, a suitable brake is applied to the video display device, making it unnecessary. It is possible to suppress the occurrence of the M-shot sound.

In addition, without passing the shaft of the video display device through the shaft, the tip of the shaft is fixed inside the video display device to create a space on the shaft of the video display device where the shaft does not exist. Since the signal lines and power lines are placed on the holder and routed through a hole drilled coaxially with the support shaft, the force applied to the signal lines and power lines as the video display device opens and closes is torsional stress.
Since there is no bending stress, the lifespan of signal lines and power lines is greatly extended.

Furthermore, the shaft support is brought to the video display device side, with a protrusion on the video recording/playback device side and a depression on the video display device side, and the projection and depression fit into each other to form the shaft support. Even if a hollow part is formed that communicates with the inside of the image display device from the recessed part, the hollow part is always covered by the protrusion when the image display part is closed, and the hollow part is exposed to the outside when it is opened, so it becomes an air intake. sell.

[Example] Hereinafter, an example of the present invention will be described with reference to FIG. Second
The figure shows an external perspective view of a recording/reproducing apparatus 1 with a video display device according to the present invention. A recording and reproducing device with a video display device 1 includes a video recording and reproducing device (hereinafter represented by a VTR section) 2 and a video display device (hereinafter represented by a liquid crystal display).
play: L CD )) consists of 3,
The CD unit 3 is rotatably supported on the VTR unit 2 by a shaft support 4 at its rear edge. FIG. 3 is a diagram in which the LCD section 3 is rotated to open and put into use. An image display window 5 is fixed to the LCD section 3, and an opening angle regulating plate 6 is fixed to the side surface 12. A pin 15 is installed at the tip of the opening angle regulating plate 6,
A protrusion 8 that runs inside the long and narrow arc-shaped gap angle regulation window 14 formed in the side wall 13 of the VTR section 2 and projects from the opening angle regulation window 14 fits into the depression 9 formed in the LCD section 3, causing the depression. On both sides of 9, there are inevitably Vs facing the video display window 5.
The TR section 2 has an operation section 7. FIG. 1 is an exploded view of the LCD section 3 shown in FIG. 3. The LCD section 3 mainly includes a back cover 16, a backlight 17, a diffusion plate 18, a liquid crystal panel 19, and a front cover 20. A torsion coil spring 22 that applies a biasing force and a damper 23 that brakes its movement are locked.

The LCD section 3 is pivotally supported on the VTR section 2 by a support shaft 10. The back cover 16 has a plurality of ventilation holes 26, which are elongated holes, formed on its side surface 12, and spindle holes 27 and 28, through which the spindle 10 passes through, at its lower part. The wiring hole 29 is located on the side wall 1 coaxially with the support shaft hole 27°28.
It is open to 2. The spindle 10 has a head 37 at one end,
The other end has a slit 38, and the E ring 21 has a slit 38.
8 and prevents the support shaft 10 from being removed.

The power line 36 of the backlight 17 and the signal line 35 of the liquid crystal panel 19 pass through the wiring cavity 34, pass through the wiring hole 29, and are once led out to the outside of the LCD section 3, and are further wired to the side wall 13 of the VTR section 2. It is introduced into the VTR section 2 through the hole 31. The pin 15 of the opening angle regulating plate 6 has a slit 39.

The torsion coil spring 22, washer 24, and damper 23 are fitted, and the E-ring 25 is fitted into the slit 39 to prevent removal. An image display window 5 is opened in the front cover 20 and covered with a transparent acrylic plate 33. A support shaft hole 32 through which a support shaft 10 passes is bored in the protrusion 8 of the VTR section. 4 is a front sectional view of FIG. 2, and FIG. 5 is a side sectional view of FIG. 2, mainly showing the arrangement of the opening angle regulating plate 6, the torsion coil spring 22, and the damper 23. The torsion coil spring 22 has one end 22
b is locked to the pin 15, the other end 22c is rotatably locked to the inside of the side wall 13 of the VTR section 2 by a screw 40, and the central coil section 22a is free to move. The damper 23 consists of a cylinder 41, a piston 42, and a handle 44. The cylinder 41 is rotatably supported on the VTR section 2 by a retaining portion 43. The handle 44 of the piston 42 is the pin 1
5 is rotatably locked. The damper 23 has a piston 42 that moves linearly in a reciprocating manner within the cylinder 41.
When the cylinder 2 moves upward, the inside of the cylinder 41 becomes negative pressure and braking is applied to the piston 42. Conversely, when the piston 42 is pushed in, air leaks from the sliding part between the piston 42 and the cylinder 41 and no braking is applied. It is a type of air damper. Figures 5, 6 and 7 are 500
These are explanatory diagrams of the operations of the torsion coil spring 22 and damper 23 as the part 3 opens and closes, and FIG. 5 shows the state in which the 500 part 3 is closed, FIG. 7 shows the state in which the 500 part 3 is completely opened, and FIG. This is an intermediate state between the two. In FIG. 6, one end 22c of the torsion coil spring 22 is connected to a locking screw 40 between the shaft support 4 and the pin 15 on a straight line connecting the shaft support 4 and the pin 15.
It is rotatably secured to the back side of the side wall 13 of the VTR unit 2.

Further, the locking portion 43 of the cylinder 41 is connected to the shaft support 4 and the pin 1.
It is rotatably locked near the intersection with the bottom of the VTR section 2 on the extension line connecting the VTR section 5 with the bottom hole. In FIG. 5, the 500 part 3 is closed, and the torsion coil spring 22 has a biasing force in the direction of the arrow 45, biasing the pin 15, and as a result, the LCD part 3
is biased in the direction of closing around the shaft support 4 (in the direction of arrow 46). At this time, the piston 42 in the damper 23 is located above the cylinder 41. FIG. 6 shows an intermediate state in which the 500 part 3 is about to open, and the torsion coil spring 22 is deflected to the maximum and has a biasing force in the direction of arrow 47, but since all directions of arrow 47 are fixed by the shaft, the torsion coil spring 22 The biasing force of the spring 22 does not contribute to the rotation of the 500 part 3. At this time, the piston 42 inside the cylinder 41 is located at the bottom of the cylinder 41. FIG. 7 shows a state in which the 500 part 3 is completely opened, and the torsion coil spring 22 has a biasing force in the direction of the arrow 48, biasing the pin 15 in the direction of the arrow 48, and as a result, the LCD part 3-axis support 4 rotates. It is biased in the direction of opening (direction of arrow 49). A piston 42 within the cylinder 41 is located at the top of the cylinder 41. Next, the operation of each part will be explained. When opening the 500 part 3, lift the front edge of the 500 part 3 by hand.

At this time, it is lifted up against the biasing force of the torsion coil spring 22. When it is lifted above the intermediate state shown in FIG. 6, the biasing force of the torsion coil spring 22 acts in the opening direction, so that it opens automatically thereafter. The movement of the 500 part 3 is accelerated by the biasing force of the torsion coil spring 22, but the piston 4
2 moves upward from the bottom of the cylinder 41, a negative pressure is created in the cylinder 41, and the movement of the piston 42 is braked. Therefore, the 500 part 3 rotates in a state where the biasing force of the torsion coil spring 22 and the brake of the damper 23 are balanced, and the 500 part 3 opens slowly. Conversely, when closing the 500 part 3, pull the front edge of the 500 part 3 toward you by hand and rotate it around the pivot support 4. Until the intermediate state shown in FIG. 6, it is necessary to apply a counterforce to the biasing force of the torsion coil spring 22, but once the intermediate state is exceeded, the biasing force of the torsion coil spring 22 automatically closes. 5 due to the biasing force of the torsion coil spring 22.
The movement of the 00 part 3 is accelerated, but since the piston 42 moves from the bottom to the top of the cylinder 41, negative pressure is created in the cylinder 41, and the movement of the piston 42 is braked. Therefore, the 500 part 3 rotates in a state where the urging force of the torsion coil spring 22 and the brake of the damper 23 are balanced, and the 500 part 3 slowly closes.

FIG. 8 is a sectional view of FIG. 2 viewed from above, with a VTR 50 inside the VTR section 2 and a liquid crystal panel 19 inside the LCD section 3.
, a backlight 17 is housed, and the shaft support 4 is a VTR.
The protruding portion 8 from the portion 3 is inserted into the bank portions 11a and llb of the back cover 16 from both sides, and the support shaft 10 is inserted into the upper portion 11a.
, protrusion 8, bank part 11b and skewer, wiring cavity part 3
4, its tip protrudes and the E-ring 21 is fitted into the slit 38. The signal line 35 to the liquid crystal panel 19 and the power line 36 to the backlight 17 join together at the wiring cavity 34, pass through the wiring hole 29 on the LCD section 3 side and the wiring hole 31 on the VTR section 2 side, and connect to the VTR section 2. pulled to the side. Here, the two wiring holes 29 and 31 are formed coaxially with the support shaft 10. Therefore, as the 500 unit 3 rotates, the signal $35 and the power line 36 are twisted. however,
Since the wire rod 35° 36 is relatively long and can be placed coaxially with the support shaft 4 in the wiring cavity 34, its twist is relatively gentle. FIG. 9 is a side sectional view of FIG. 2, and the lower VTR unit 2 has a built-in electric circuit 51 such as a signal processing circuit for the VTR 50, a calling circuit for the liquid crystal panel 19, and a power source, and the upper 500 unit 3 has a liquid crystal panel 19 and a diffuser plate 18
and a backlight 17 are built in. A plurality of ventilation holes 26 are formed in the back cover 16. A rising portion 8a is formed at the rear end of the projection 8, and there is only a small gap between the depression 9 and the outside. FIG. 10 is a side sectional view of FIG. 3, showing the 500 part 3 of FIG. 9 opened and ready for use. The internal configuration is the same as in FIG. 500
When the portion 3 is open, an air intake port 30 is formed between the protrusion 8 of the shaft support 4 and the back cover 16. When the inside of the back cover 16 is heated by the bank light 17, the air inside the back cover 16 exits through the ventilation opening 26. Then, cold air from the outside flows into the back cover 16 through the intake port 30 and cools the backlight 17.

FIG. 11 is a second embodiment of the present invention, and shows a perspective view of the external appearance of a video display device appendix a reproducing device 1. As shown in FIG.

The recording and reproducing device with a video display device 1 includes a video recording and reproducing device (hereinafter referred to as a VTR section) 2 and a video display device (hereinafter referred to as a VTR section).
3 (represented by an LCD section), and the 500 section 3 is rotatably supported on the VTR section 2 by a shaft support 4 at its rear edge. FIG. 12 is a diagram showing the 500 part 3 rotated and opened to be in a state of use. 500 part 3 has an image display window 5. An opening angle regulating plate 52 is fixed to the side surface 12. The opening angle regulating plate 52 runs through an elongated opening angle regulating window 53 formed in the operation panel surface 7 of the VTR section 2, comes into contact with the front edge of the opening angle regulating window 53, and stops, thereby regulating the opening angle of the 500 section 3.

The operation panel 7 is provided with switches 54 for operating the mode of the VTR section, switching the display on the LCD section, etc., and a speaker 55. Cassette replacement in the VTR unit 2 is performed by opening and closing the lid. Figure 13 shows the 500 shown in Figure 12.
FIG. 3 is an exploded view of part 3; The 500 part 3 mainly consists of a back cover 16, a backlight 17, a diffusion plate 18, a liquid crystal panel 19, and a front cover 20, and a pin 15 having a slit 39 at one end is provided at the tip of the opening angle regulating plate 52. is erected, and a torsion coil spring 22 that applies an urging force to the 500 part 3 and a damper 23 that brakes the movement of the 500 part 3 are locked to the pin 15. The 500 unit 3 is pivotally supported on the VTR unit 2 by a support shaft 10. The back cover 16 has a plurality of long ventilation holes 26 in its side wall 12, and a bank part 11a is provided below the LCD part 16.

11b is provided, and a support shaft 10 is provided on the bank portion 11a, llb.
A support shaft hole 27, 28 is formed through which the support shaft 28 penetrates, a wiring cavity 34 is provided between the support shaft hole 28 and the side wall 12, and a wiring hole 29 is provided in the side wall 12.

It is drilled coaxially with the support shaft holes 27 and 28. Wiring hole 29
is connected to the plug through hole 56, and the plug through hole 5
6 is fitted with a block 57, closed, and fixed with screws 58. Bank part 11a.

A recess 9 is formed between the back cover 16 and Llb, and the recess 9 has no special partition wall, and the inside and outside of the back cover 16 communicate with each other.

The support shaft 10 has a head 37 at one end and a slit 38 at the other end, and the E-ring 21 fits into the slit 38 to prevent the support shaft 10 from being removed. The power line 36 of the backlight 17 and the signal line 35 of the liquid crystal panel 19 pass through the wiring cavity 34, pass through the wiring hole 29, and are once led out of the LCD section 3. At this time, the plug 59 is guided out of the LCD section 3 through the plug through hole, and then the plug through hole 56
The block 57 is fitted into the hole and fixed with the screw 58 to close the hole. A protrusion 8 is formed on the V'rI corner 2, and the L
It fits into the recess 9 of the CD section 3. A support shaft 10 is attached to the protrusion 8.
A spindle hole 32 through which the shaft passes is bored. VTR section side wall 1
3, a wiring hole 31 is formed coaxially with the hole 32. The wiring hole 31 is composed of a block 60 and the VTR section 2, and the block 60 is fixed to the VTR section 2 with screws 61.

A torsion coil spring 2 is attached to the pin 15 of the opening angle regulating plate 52.
2. The washer 24 and damper 23 are fitted, and the E-ring 25 is fitted into the slit 39 to prevent removal. A video display window 5 is opened in the front cover 20 and covered with a transparent acrylic plate 33.

FIG. 14 is a side sectional view of FIG. 11, mainly showing the opening angle regulating plate 52, the torsion coil spring 22, and the damper 23.
The layout diagram is shown. The torsion recoil spring 22 has one end 22b.
is locked to the pin 15, the other end 22c is rotatably locked to the inside of the side wall 13 of the VTR section 2 by a screw 40, and the central coil section 22a is free to move. The damper 23 includes a cylinder 41, a piston 42, a handle 44, and a compression coil spring 6 inserted between the cylinder 41 and the piston 42.
It consists of 5. The piston 42 has a handle 44, and the handle 44 consists of an upper handle 62 and a lower handle 63. One end of the upper handle 62 is rotatably locked to the pin 15, and the other end is connected to a lower handle 63 and a shaft 64. engaged.

The cylinder 41 is rotatably supported on the VTR section 2 by a locking section 43. In the damper 23, the piston 42 reciprocates in a straight line within the cylinder 41, and when the piston 42 is pulled out, the inside of the cylinder 41 becomes negative pressure, which applies braking to the piston 42. Conversely, when the piston 42 is pushed in, the piston 42 and the cylinder 41 are This is a negative pressure braking type air damper where air leaks from the sliding part and no braking is applied.

14, 15, and 16 are explanatory diagrams of the operations of the torsion coil spring 22 and damper 23 as the LCD section 3 opens and closes. FIG. 14 shows the LCD section in a closed state, and FIG. 17 shows the LCD section. 3 is fully opened, and FIG. 15 is a state where the LCD section 3 is opened to 1/4.

FIG. L6 shows a state in which the LCD section is opened 1/2. In FIG. 16, one end 22c of the torsion coil spring is placed between the shaft support 4 and the pin 15 on the straight line connecting the shaft support 4 and the pin 15, and is attached to the back side of the Locked in rotation.

Further, the locking portion 43 of the cylinder 41 is rotatably locked to the VTR section 2 near the intersection with the bottom of the VTR section 2 on an extension line connecting the shaft support 4 and the pin 15. The compression coil spring 65 is located within the cylinder 41 and always biases the piston 42 in a downward direction. In Fig. 1.4, the LCD section 3 is closed, and the torsion coil spring 2
2 has a biasing force in the direction of arrow 66 and biases the pin 15;
As a result, the LCD section 3 is biased in the direction of closing around the shaft support 4 (in the direction of arrow 67). The upper handle 62 and lower handle 63 extend in a straight line, and the piston 42 is located at the top of the cylinder 41. FIG. 15 shows that the LC
In this diagram, the D part 3 is about to be opened by 1/4, the handle 44 is bent at the shaft 64, and the piston 42 is pushed down below the cylinder 41 by the compression coil spring 65. FIG. 16 shows the torsion coil spring 22 in the intermediate state of opening and closing the LCD section.
is deflected to the maximum and has a biasing force in the direction of arrow 66, but since all directions of arrow 66 are fixed by the shaft, the biasing force of the torsion coil spring 22 does not contribute to the rotation of the LCD section 3.
In FIG. 17, the LCD section 3 is in an open use state, and the torsion coil spring 22 is biased in the direction of arrow 66, and as a result, the LCD section 3 is biased in the direction of opening around the shaft support 4 (in the direction of arrow 67). The upper handle 62 and the lower handle 63 extend in a straight line, and the piston 42
moves inside the cylinder 41, and the operation of each part of the 0th order located in the upper part of the cylinder 41 will be explained. LCD section 3
To open the LCD section 3, lift the front edge of the LCD section 3 by hand.

At this time, it is lifted up against the biasing force of the torsion coil spring 22. When it is lifted above the intermediate state shown in FIG. 16, it will automatically open due to the biasing force of the torsion coil spring even if you release your hand. LC due to the biasing force of the torsion coil spring 22
The movement of the D part 3 is accelerated, but as the piston 42 moves from the bottom of the cylinder 41 toward the top just as the opening of the LCD part 3 is about to end, the inside of the cylinder 41 becomes negative pressure, and the piston A brake is applied to the movement of 42. Therefore, the LCD section 3 rotates in a state where the biasing force of the torsion coil spring 22 and the brake of the damper 23 are balanced, and the LCD section 3 slowly rotates 178 times. Conversely, when closing the LCD section, pull the front edge of the LCD section 3 toward you by hand and rotate it around the pivot support 4. 17th
Until the intermediate state shown in the figure, it is necessary to apply force to counter the biasing force of the torsion coil spring 22, but once the intermediate state is exceeded,
It is automatically closed by the biasing force of the torsion coil spring 22. The movement of the LCD section 3 is accelerated by the biasing force of the torsion coil spring 22, but just before the LCD section 3 is completely closed, the upper handle 62 and the lower handle 63 are pulled in a straight line, causing the piston 42 to move into the cylinder 4.
Since it is moved from the bottom of cylinder 1 to the top, cylinder 4
1 becomes negative pressure, and the movement of the piston 42 is braked. Therefore, the LCD section 3 has a helical coil spring 22.
The LCD section 3 rotates in a state where the urging force of the damper 23 and the brake of the damper 23 are balanced, and the LCD section 3 slowly closes.

Figure 18 is a sectional view of Figure 11 viewed from above.

A VTR 50 is housed in the VTR unit 2, and a liquid crystal panel 19 and a backlight 17 are housed in the LCD unit 3. In the shaft support 4, the penetration portion 8 from the VTR unit 3 is inserted into the bank portions 11a and llb of the back cover 16 from both sides, and the support shaft 1o is skewered through the bank portion 11a, the protrusion portion 8, and the bank portion 11b, and the wiring Its tip protrudes into the cavity, and the slit 3
E-ring 21 is fitted into 8. The signal line 35 to the liquid crystal panel 19 and the power line 3G to the backlight 17 join in the wiring cavity 34, pass through the wiring hole 29 on the LCD section 3 side and the wiring hole 31 on the VTR section 2 side, and connect to the VTR. Pulled into side 2. Here, the two adjacent wiring holes 29 and 31 are formed coaxially with the center of the support shaft 1o. Therefore, as the LCD section 3 rotates, the signal line 35 and the power line 36 are twisted.

However, the wire rod 35.36 is relatively long in the wiring cavity 34 and is arranged coaxially with the support shaft 4, and the inner diameter of the wiring holes 29 and 31 is larger than the elastic outer diameter of the wire rod 35.36. , wire rods 35 and 36
The torsion applied to is relatively gentle.

FIG. 19 is a side sectional view of FIG. 11, and the lower VTR section 2 has a built-in electric circuit 51 such as a signal processing circuit for the VTR 50, a drive circuit for the liquid crystal panel 19, and a power supply, and the upper LCD section 3 A liquid crystal panel 19, a diffusion plate 18, and a backlight 17 are built in. A plurality of elongated ventilation holes 26 are formed in the back cover 16. Projection 8
A rising portion 8a is formed at the rear end, and there is only a small gap between the recessed portion 9 and the outside. FIG. 20 is a side sectional view of FIG. 12, showing the LCD section 3 of the recording/reproducing apparatus with video display device shown in FIG. 19 opened and ready for use. Therefore, the internal configuration is the same as that in FIG. 19. LCD
When the portion 3 is open, an air intake port 30 is formed between the protrusion 8 of the shaft support 4 and the back cover 16. When the inside of the back cover 16 is warmed by the heat generated by the backlight 17, the air inside the back cover 16 moves upward and exits through the ventilation hole 26. Then, cold air from the outside flows into the back cover 16 through the intake port 30, and the backlight 17 is air-cooled. As a result, the liquid crystal panel 19
Since the temperature of the liquid crystal panel 19 can be prevented from rising, the liquid crystal panel 19 will not be burnt-in and can be used for a long period of time. The intake port 30 is not formed when the 500 part 3 is closed, and is formed only after the 500 part 3 is opened.

This is because the rising portion 8a of the protrusion 8 is deeply embedded in the 500 part 3, and the inside of the back cover 16 and the protrusion 8
This is because there is no partition between the two. Since the intake port 30 is not formed when the 500 part 3 is closed, it is possible to prevent dirt and dust from entering.

FIG. 21 shows a third embodiment of the present invention, and is a partial cross-sectional view of the recording/reproducing apparatus 1 with video display device described in the second embodiment, seen from the back. VTR section 3, LCD section 2, LCD
The structure of the torsion coil spring 22 that applies a biasing force to the portion 2 is the same as that of the second embodiment, but only the structure of the damper 23 is different, so only the structure of the damper 23 will be described. FIG. 22 is a sectional view of the main part of the third embodiment as viewed from the side, and will be explained using FIGS. 21 and 22 as double-edged blades. The damper 23 is a cylindrical cylinder 71.

It has an axially elongated slit 75 on the side surface. A piston 76 is housed in the cylinder 71, the piston 76 and the opening angle regulating plate 52 are connected by a handle 72, one end of the handle 72 and the piston 76 are rotatably connected by a shaft 73, and the handle 7
The other end of 2 is rotatably connected to the pin 15 of the opening angle regulating plate 52.

The cylinder 71 is connected to the shaft 70 by a hanging plate 69 on the VTR section 2.
It is rotatably supported. A chevron-shaped rotation angle regulating frame 74 is formed on the hanging plate 69 to face each other vertically, and the cylinder 71 is rotatable within the rotation angle regulating frame 74 about a shaft 70 . The piston 76 is made of rubber or soft plastic, and is in close contact with the inner wall of the cylinder 71.
There is friction between the piston 76 and the inner wall of the cylinder 71.

Therefore, when the piston 76 is moved, frictional resistance is generated. FIGS. 23 and 24, together with FIG. 22, are explanatory diagrams of the operation of the third embodiment. Fig. 22 shows the 500 part 3 in a closed state, Fig. 23 shows a state in which it is opened to the middle, and Fig. 24 shows a state in which it is opened.

In FIG. 22, the 500 part 3 is closed and the piston 7
6 is placed at the left end of the cylinder, and the handle 72 and cylinder 71 are in a straight line. The biasing force of the screw recoil spring 22 acts in the direction of arrow 66.

Due to that force, 500 part 3 receives force in the direction of arrow 67,
It is pressed against the VTR section 2. FIG. 23 shows a state in which the 500 part 3 is lifted against the biasing force of the torsion coil spring 22 to an intermediate position. As the 500 part 3 rotates, the handle 72 rotates around the shaft 73 of the piston 76, but the piston shifter 6 itself has not started to move. The torsion coil spring 22 is deflected to the maximum, and its biasing force acts in the direction of arrow 66, but since the direction of arrow 66 is only for the axis, the biasing force is 50
It does not contribute to the rotation of part 03. 50 more than this intermediate state
When part 0 3 is opened, the biasing force of the torsion coil spring 22 is 50
It begins to contribute to the rotation of part 03 and automatically opens the LCD part. The screw 1-76 moves inside the cylinder 71 from left to right, applies a brake to the rotating speed of the 500 parts 3 while generating friction between the piston 76 and the inner wall of the cylinder 71, and prevents the rapid rotation speed of the 500 parts 3. Suppress rotation. Second
Figure 4 shows the state in which the 500 part 3 is opened. The handle 72 and the cylinder 71 are in a straight line, and the piston 76 is located at the right end of the cylinder 71. The biasing force of the torsion coil spring 22 acts in the direction of arrow 66, and as a result, the LCD section 3 moves in the direction of arrow 6.
Forces in 7 directions. Therefore, even if a disturbance is applied to the recording/reproducing apparatus 1 with a video display device, the 500 copy 3 remains stable without flapping.

The opening of 500 part 3 is the reverse procedure of the above, first 500 part 3 is released.
Pull the front edge of the section 3 toward you against the biasing force of the twisted coil spring 22. Up to the intermediate position shown in FIG. 23, although the handle 72 rotates, the piston 76 does not move. When the LCD part is pulled toward you beyond this intermediate position, the biasing force of the torsion coil spring 22 begins to contribute to the rotation of the 500 part 3, and the LC
Part D is automatically closed. The piston 76 moves from right to left inside the cylinder 71, applying a brake to the rotation of the 500 part 3 while generating friction between the piston 76 and the inner wall of the cylinder 71, suppressing the rapid rotation of the 500 part 3. do. While the 500 part 3 is being rotated by hand in this manner, the damper 23 does not act as a brake, but the brake is applied to the rotation of the 500 part 3 from a position past the intermediate state shown in FIG.

[Effects of the Invention] According to the present invention, one end is locked to the LCD section and the other end is locked to the VTR section as an aid to opening and opening the LCD section,
Using a torsion coil spring with a free central coil part,
Since the urging force acts in the open state of the LCD section and in the surface state of the open state, and there is a dead point in the intermediate state of transition from open to closed and from close to open, recording and playback with the video display device is performed when the LCD section is in the open state. Even when the device is stood up, the LCD section does not open, and a latch mechanism for fixing the LCD section is not required. Furthermore, when the LCD section is open and in use, the LCD section is always pressed against the VTR section, so that the LCD section will not fall down due to external vibrations or IT. Furthermore, since a damper is used in combination, a brake is applied to the opening or closing of the LCD section, and the movement of the LCD section is slowed down, so there is no risk of collision noise or fingers getting caught.

Further, according to the present invention, the tip of the support shaft is stopped within the video display device without penetrating the support shaft of the LCD portion with the support shaft, and the space where the support shaft does not exist is created inside the video display device. The signal line and power line are placed in this space, and the L is placed coaxially with the support shaft.
Wiring holes were drilled in the side walls of the CD section and the side walls of the VTR section, and the signal lines and power lines were routed through them, so the signal lines and power lines were only subjected to gentle repeated twisting as the LCD section was opened and closed. The lifespan of power lines will be significantly extended.

Furthermore, according to the present invention, a hinge structure is adopted in which the shaft support is located on the LCD side, the protrusion on the VTR side is inserted into the recess on the LCD side, and connected by the support shaft, and a rising portion is further provided on the protrusion. Since the recessed portion was further recessed, the recessed portion was exposed to the outside when the LCD section was opened.

Outside air flows into the LCD section through the recess, and connects to the VTR section and III! The backlight is cooled because it flows out from the ventilation hole provided on the side wall of the LCD section that is in contact with it, and when the LCD section is closed, the recess and ventilation hole are all blocked by the VTR section, preventing dirt and dust from entering. can be prevented from occurring.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of the first embodiment of the invention, Fig. 2 is a perspective view of the first embodiment of the invention, Fig. 3 is a usage state diagram of Fig. 2, and Fig. 4 is an exploded perspective view of the first embodiment of the invention. 5 is a side sectional view of FIG. 2, FIGS. 6 and 7 are operation explanatory diagrams of FIG. 2,
8 is a top sectional view of FIG. 2, FIG. 9 is a side sectional view of FIG. 2, FIG. 10 is a side sectional view of FIG. 3, and FIG. 11 is an external appearance of the second embodiment of the present invention. A perspective view, FIG. 12 is a perspective view of FIG. 11 in use, FIG. 13 is an exploded perspective view of FIG. 12, and FIGS. 14, 15, 16, and 17 are explanations of the operation of FIG. 12. 18 is a top sectional view of FIG. 11, FIG. 19 is a side sectional view of FIG. 11, FIG. 20 is a side sectional view of FIG. 12, and FIG. 21 is a top sectional view of FIG. A partial cross-sectional view of the back of the embodiment,
Figures 22, 23, and 24 show the operation theory of the third embodiment of the present invention. Video recording and reproducing device or VTR section, 3... U display device or LCD section, 4... Axial support, 6, 52... Opening angle regulating plate, 8... Projection, 9... Recess, 10... Support shaft, 11... Bank part, 12... Side wall, 13... Side wall,
14... Opening angle regulation window, 15... Pin, 16...
Hack cover 17... Backlight, 19... Liquid crystal panel, 22... Torsion coil spring, 23... Damper, 26... Ventilation opening, 27, 28. 32... Spindle hole, 29° 76... Piston, 44° 56... Plug through hole, 5 65... Compression coil spring. Intake port, 69...Hanging plate, 72...Handle, 50-VTR1 7,60...Block. 51... Electric circuit, 30... 74... Rotation angle regulation frame. Z 29.31...Distribution hole 35...Gland No. 7 19 Figure 22...Torsion coil width 23...Damper 71...Cylinder 76...Piston no. 1/

Claims (1)

[Claims] 1. Consisting of a video display device (3) and a video recording and reproducing device (2), the video display device (3) being rotatably supported by the video recording and reproducing device (2). A recording and reproducing device with a video display device includes a torsion coil spring (22) whose one end is locked to the video display device (3), the other end is locked to the video recording and playback device (2), and whose coil portion is movable. ), and the torsion coil spring (22) is connected to the video display device (3).
) in the closing direction (not in use) and the video display device (3
1. A recording and reproducing device with a video display device, characterized in that it is of a two-stable point type usage method in which the device is biased in both directions of opening (in use state). 2. The recording and reproducing device with a video display device according to claim 1, wherein one end is rotatably locked to the video display device (3), and the other end is rotatably locked to the video recording and reproducing device (2). The video is characterized in that the damper (23) is damped in both the directions in which the video display device (3) opens (direction of use) and the direction in which it closes (direction of non-use) using a damper (23) that is stopped. Recording and reproducing device with display device. 3. The recording and reproducing apparatus with a video display device according to claim 2, wherein the damper (23) is an air damper (23) consisting of a cylinder (41) and a piston (42), and the cylinder (41) is configured to display the video. Video recording on a straight line connecting the rotation center of the video display device (3) and the locking position of the other end of the torsion coil spring (22) (on the video recording and reproducing device (2) side) in the recording and reproducing device (2). The piston (42) is rotatably supported by the playback device (3), and the piston (42) is coaxially and rotatably locked in a locking position of the torsion coil spring (22) that is locked to the video display device (3). , the cylinder (4
1) and the piston (42) move relatively linearly. 4. The recording and reproducing apparatus with a video display device according to claim 3, wherein the damper (23) is a friction damper (23) consisting of a cylinder (71) and a piston (76). Recording and playback device. 5. A recording device with a video display device, which is composed of a video display device (3) and a video recording and reproducing device (2), and the video display device (3) is rotatably supported on the video recording and reproducing device (2). In the playback device (1), the pivot support (4) is hinge-shaped;
It is composed of a support shaft (10) having a head (37) at one end and a slit (38) at the other end, and a stopper (21) that fits into the slit (38), and the support shaft (10) allows the image to be Although the rear end of the display device (3) and the video recording and reproducing device (2) are skewered, the tip of the support shaft (10) is located inside the video display device (3),
A stopper (21) is inserted into the slit (38) to prevent the support shaft (10) from coming off, and the video display device (3) and the video recording and reproducing device (2)
A signal line (35) or a power line (36) connecting the video display device (
3) side, and a second wiring hole (29) on the video recording and reproducing device (2) side, which is adjacent to and coaxial with the first wiring hole (29). A recording/reproducing device with a video display device, characterized in that the wiring is connected through a wiring hole (31). 6. A recording device with a video display device, which is composed of a video display device (3) and a video recording and reproducing device (2), and the video display device (3) is rotatably supported on the video recording and reproducing device (2). In the playback device, the protrusion (8) of the shaft support (4) that protrudes at the rear edge of the video recording and playback device (2) fits into the recess (9) at the rear edge of the video display device (3); The projection part (8) and the depression part (9) are constructed in a hinge shape with a support shaft (10) skewered, and the depression part (8) is a hollow part that continues into the inside of the image display device (3). , the video display device (3) is connected to the support shaft (10).
When the video display device (3) is opened by rotating around the
A recording and reproducing device with a video display device, characterized in that an intake port (30) is formed between a rear end and the video recording and reproducing device (2). 7. The recording and reproducing apparatus with a video display device according to claim 2, wherein the damper (
23) A recording and reproducing apparatus with a video display device, characterized in that the braking does not work until the dead point of the torsion coil spring (22), but starts working from the time when the torsion coil spring (22) rotates beyond the dead point. 8. In the recording and reproducing apparatus with a video display device according to claim 1, both arms (22b, 22c) of the torsion coil spring (22)
) ends are each a single coil of the same diameter, and both arms (22b
, 22c) having a line-symmetrical shape with equal lengths. 9. The recording and reproducing apparatus with a video display device according to claim 3, wherein the damper (23) comprises a cylinder (41) rotatably supported by the video recording and reproducing apparatus (2); and the cylinder (41). a compression coil spring (65) inserted between the upper part of the piston (42) and the cylinder (41); and a compression coil spring (65) that is made integral with the piston (42). and an upper handle (62), one end of which is rotatably supported by the lower handle (63) and the other end of which is rotatably supported by the video display device (3). A recording and reproducing device with a video display device.