JP2001128088A - Screen angle adjuster for display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a screen angle adjuster for a display device for fitting the display device both in a horizontally long direction and in a vertically long direction and for stably stopping and holding the display device at an optional inclination in either of the directions so as to avoid generating interference between with a fitting wall surface. SOLUTION: This device consists of a base plate to be fitted to the wall surface of a building, a lift plate which is fitted to this base plate in the state of free stop and being capable of lifting and inclining through a lift means utilizing a link mechanism to this base plate, and a sub-plate for fitting a display device which is fitted rotatably to this lift plate through a rotary mechanism. The lift means is provided with a lifting angle regulation means constituted so as to select a lifting position at least by two steps, and the rotary mechanism is provided with a locking means for locking at the first position and a second position obtained by rotating by 90 deg. from this first position.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a screen angle adjusting device for a display device, which is suitable for mounting a large display device on a wall surface and adjusting the screen angle.

[0002]

2. Description of the Related Art In recent years, thin and large televisions and other display devices using liquid crystal, plasma, or a large number of light emitting diodes or small discharge lamps as pixels instead of CRTs have been developed. Since these are thin, they can be mounted on a wall just like a picture frame. In such a case, if there is a dedicated screen angle adjusting device that can arbitrarily adjust the screen angle after mounting, it is convenient that the screen of the display device can be installed at an easy-to-view angle according to various mounting locations and installation conditions.

[0003]

Various screen angle adjusting devices for this purpose are known, but the screen of the display device can be free-stopped at an arbitrary inclination angle or interference occurs with the mounting wall. Nothing has been devised so that the screen can be mounted in either portrait or landscape orientation.

An object of the present invention is to allow a display device to be mounted in any of a horizontal direction and a vertical direction, and to stably hold the display device at an arbitrary inclination angle in each direction, so that interference between the display device and a mounting wall surface occurs. It is an object of the present invention to provide a screen angle adjusting device for a display device which is devised so as not to cause such a problem.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention provides a base plate mounted on a wall of a building, and the base plate can be lifted to a free stop via lift means utilizing a link mechanism. A lift plate that is tiltably mounted, and a support plate that mounts a display device that is rotatably mounted on the lift plate via a rotation mechanism, wherein the lift means raises the lift position by at least two steps. The rotation mechanism has a first position and a lock means that can be locked at a second position rotated by 90 ° from the first position. . In this case, the present invention includes a lock plate that moves the lift angle adjusting means in conjunction with the rotation mechanism and a lock pin attached to the lock plate, and the lock pin moves the lift arm of the lift means. Can be regulated. Furthermore, the present invention provides a cam plate which rotates the rotation mechanism together with a support plate, a first locking recess provided on the cam plate, and a second locking recess provided at the second position on the cam plate. It can be constituted by a concave portion, a locking member that engages with the first locking concave portion and the second locking concave portion, and a lock plate that locks the locking member at the first position and the second position. .

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of the present invention. Reference numeral 1 denotes a base plate which is mounted on a wall surface 2. Reference numeral 3 denotes a base plate which can be lifted by lift means 4 and 4, which will be described later. It is a lift plate that is attached to be tiltable. 5 is this lift plate 3
And a support plate rotatably mounted on the support plate 5. A large display device 6 is mounted on the support plate 5. As the display device 6, a device using a liquid crystal, a plasma, a large number of light emitting diodes, small discharge lamps, and the like is typical. However, the display device 6 is not limited to this, and various light emitting bodies and light emitting means are used. Things included. In short, any device that is thin and can be attached to a wall is included in this display device.

The lifting means 4, 4 are provided on both sides of the base plate 1 and the lift plate 3, respectively.
a, 1a and a first support shaft 7, 7 which is mounted between support members 1b, 1b raised from the upper position of the rising pieces 1a, 1a, and the upper end thereof is fixed. Arm 8, 8 and a lower end of the first arm 8, 8
The upper ends of the second support shafts 9 and 9 are fixed to the first and second support shafts 9 and 9 so as to be swingable, and the lower ends of the second support shafts 9 and 9 are fixed to storage recesses 3a and 3a provided on both sides of the lift plate 3. The first lift arms 11, 11 rotatably mounted on the three support shafts 10, 10 and the first lift shafts 7, 7,
The upper ends of the arms 8 and 8 are coaxially and rotatably mounted on the upper ends thereof, and the lower positions thereof are rotatably mounted on the fourth support shafts 12 and 12 through the storage recesses 3a and 3a. Second lift arms 13, 13, the first support shafts 7, 7, and the fourth
The first support shafts 7, 7 are rotatably mounted on the support shafts 12, 12. The first support shafts 7, 7 are rotatable, and the fourth support shafts 12, 12 are fixed to tilt arms 14, 14.

The first tilt arms 10, 11 and the third support shafts 10, 10 and the fourth support shafts 12, 12, which support the second lift arms 13, 13 with respect to the lift plate 3, respectively, have a first tilt. Mechanism 15, 15 and the second tilt mechanism 16,
The first lift arms 11, 11 and the second lift arms 13, 13 are stably stopped at an arbitrary rotation position, and the lift plate 3 can be stably stopped at an arbitrary lift position.

The first and second tilt mechanisms 15, 15.1
In the parts 6 and 16 that generate friction torque, the side plates 11 a and 1 of the first lift arms 11 and 11
1a or the friction plates 17, 17 fixed to one of the side plates 3b, 3b of the storage recesses 3a, 3a, but first, the right side of the first tilt mechanisms 15, 15 in FIG. Let's start with things.

The first tilt mechanism 15 is non-rotatably fixed to the left side of the side plates 3b, 3b of the storage recess 3a of the lift plate 3, and is fixed by a mounting nut 18, as shown in FIG. The third support shaft 10 is provided on the side of the first lift arm 11 that rotatably supports the both side plates 11a, 11a. And a spring washer 21 and a holding flat washer 22 are sequentially brought into contact with the friction washer 20,
By tightening the tightening nut 10b attached to the third support shaft 10, a friction torque at the time of rotation is generated on one side plate 11a of the first lift arm 11 sandwiched between the large diameter portion 10a and the friction washer 20. It is intended to be. The first tilt mechanism 15 on the left side in FIG. 4 has the same configuration as the above-described first tilt mechanism 15 on the right side, and a detailed description thereof will be omitted.

The second tilt mechanism 16 is also provided with the first tilt mechanism 15
For the same reason as described above, only the right side in FIG. 4 will be described. In particular, as shown in FIG.
A large-diameter portion 12a of a fourth support shaft 12 in which both ends 3b, 3b of the storage recess 3a and both ends 13a, 13a of the second lift arm 13 are rotatably inserted, and a friction washer. 24, the side plates 3b, 3 of the storage recess 3a.
b and a friction plate 25 fixed to the one side plate 3b.
4 has a spring washer 23 and a flat washer 2 for the presser
6 are sequentially brought into contact with each other, and the tightening nut 12b attached to the fourth support shaft 12 is tightened. A friction torque is generated when the lift arm 13 rotates.

The structure of each of the tilt mechanisms 15, 16 is not limited to the above. For example, between the large diameter portion 10a and the side plate 11a of the first lift arm 11, and the large diameter portion 12a
A friction washer or a spring washer may be provided only on one side or in combination between the side plate 3b and the side plate 3b. Further, it is optional to further provide a friction washer between the friction washer 24 and the side plate 13a of the second lift arm 13, and between the friction washer 24 and the friction plate 25. Further, a flat washer may be interposed between each friction washer and the spring washer. A plurality of spring washers may be used, or one or more wave washers may be used.

In particular, as shown in FIGS.
Is lock means for the lift means 4 and 4, and lock plates 1c and 1c cut and raised from the base plate 1 and the second lock means.
It comprises locking rollers 29, 29 attached to the lift arms 13, 13 via holders 28, 28.

Next, the rotation mechanism 30 of the support plate 5
Will be described.

In particular, as shown in FIGS. 4, 7, and 10, the support plate 5 is frictionally attached to the fixed shaft 32, which is non-rotatably fixed to the substantially central portion of the lift plate 3 via the mounting nut 31. It is mounted so as to rotate only when a predetermined friction torque is applied via a mechanism 33, and a cam plate 34 is fixed to the support plate 5 via a mounting ring member 35. Reference numeral 36 denotes a bearing ring member attached to the lift plate 3, which is in contact with the inner periphery of the attachment ring member 35. As shown in FIGS. 4, 7 and 11, the friction mechanism 33 of the rotation mechanism 30 sandwiches the support plate 5 between the large diameter portion 32a of the fixed shaft 32 and the friction washer 38 attached to the fixed shaft 32. The spring washer 39 and the holding flat washer 40 are further superposed on the friction washer 38 in this order, and tightened with the tightening nut 41 to form the large diameter portion 3.
2a and the friction washer 38 are pressed against the support plate 5, and the support plate 5 rotates only when a predetermined rotational torque is applied to the support plate 5. In FIG. 10, the friction washer 37 is interposed between the large-diameter portion 32a of the fixed shaft 32 and the support plate 5, but such a configuration may be adopted. In particular, as shown in FIG.
Has a first locking recess 34a and a second locking recess 34b at 90 ° intervals on the outer circumference thereof.
4a and 34b, a locking roller 43 is attached to a free end of the locking roller 43 so as to be engaged with a tension coil spring 44.
And attached to the lift plate 3 while being urged to rotate in the horizontal direction. 45 is a locking roller 4 of the locking member 43
2 is the first and second locking recesses 34a, 3 of the cam plate 34.
A lock member that keeps the position engaged with 4b, and is urged to rotate vertically by a torsion spring 46. The lift plate 3 is further provided with an arc-shaped guide groove 3c having a pivot point as a fulcrum, and the tip of a stopper pin 47 protruding from the support plate 5 is fitted.

Next, as shown in FIG. 4, lift angle regulating means 48 of the lift plate 3 when the horizontally long display device 6 is used in a vertically long manner will be described. A pair of lock plates 49, 49 are attached to the lift plate 3 so as to slide in left and right alternate directions, and these lock plates 49, 49 are moved in a direction away from each other left and right by tension coil springs 50, 50. This movement is locked by the stopper pin 47 abutting on a locking piece 49a protruding from one of the lock plates 49, 49. When one of the lock plates 49 connected by the connection plate 51 is moved, the other lock plate 49 is also moved at the same time. Each of the lock plates 49 has a pair of lock pins 5.
As shown in FIG. 11, the lock pins 52, 52 are provided with the through-holes and the storage recesses 3 provided in the friction plates 25, 25 at the time of locking.
a, 3a through the through holes provided in the second lift arm 1
Control member 5 axially attached to third and fourth support shafts 12 and 13
The fitting holes 53a and the notches 53b provided in the holes 3 and 53 are fitted.

Therefore, as shown particularly in FIGS. 4 and 11, the locking rollers 29, 29 of the locking means 27, 27
The lift plate 3 is locked at a position substantially parallel to the base plate 1 when the lock plate 1c and the lock plate 1c on the base plate 1 side are engaged with each other. On the other hand, the display device 6 attached to the support plate 5 is in a state in which the locking roller 42 of the locking member 43 has fallen into the first locking recess 34a of the cam plate 34 of the rotating mechanism 30 as shown in FIG. At the time of (1), the mounting state is horizontally long. In this state, since the lock plate 45 locks the swing of the locking member 43, a stable mounting state is maintained.

When the display device 6 is gripped with the hand and pulled strongly from the above state, the engagement between the locking rollers 29, 29 of the locking means 27, 27 and the locking plates 1c, 1c is released. The lift plate 3 is slightly lifted and tilted by the lifting means 4 and 4 using a link mechanism. As shown in FIG. 3, in this embodiment, the lift plate 3 is tilted to an angle of 20 °. Become. Meanwhile, the first and second tilt mechanisms 15, 15, 16,
16, the lift plate 3 can be stopped at an arbitrary position, so that the display device 6 can be stably stopped and held at an arbitrary inclination angle. When the lift plate 3 is opened to an angle of 20 °, the control member 53
Acts as a stopper to prevent further tilting.

As a result, it is possible to prevent the lower end of the display device from coming into contact with the wall surface 2 as shown in FIG.

Next, the case where the installation state of the display device is rotated by 90 ° from the horizontal state to the vertical state will be described.

In this case, after the lock plate 45, which locks the lock member 43, is moved to allow the lock member 43 to freely swing, the display device 6 is held by hand and twisted leftward. Then, the locking roller 42 escapes from the first locking concave portion 34a of the cam plate 34, and the support plate 5 rotates leftward, so that the display device 6 attached to the support plate 5 can rotate. . When the display device 6 is rotated by 90 °, the locking members 43
Of the second locking recess 3 of the cam plate 34
It stops by falling into 4b and cannot rotate any further. Then, when the lock plate 45 is returned to its original position, the locking member 43 locks the cam plate 34 at that position. Thus, the display device 6 can be rotated by 90 °. FIG. 16 shows this state.

Next, in the case where the display device 6 is vertically long, if the lift plate 3 can be tilted up to 20 °, the lower end portion of the display device 6 hits the wall surface 2 and interferes with each other. In this case, it is necessary to regulate the tilt angle of the lift plate 3. Therefore, the present invention is provided with a lift angle regulating means 48.

As described above, the support plate 5
Is rotated, the stopper pin 47 is also rotated, and the contact of the lock plate 49 with the locking piece 49a is released.
It slides horizontally by the traction force of 0,50 and lock pin 5
2, 52, 52, 52 are storage recesses 3 of the lift plate 3.
a, 3a, the second lift arms 13, 13, and the control member 5
Lock through the side plates 3 and 53. At this time, as shown in FIG. 11, the lock pins 52, 52 located on the upper side in FIG.
3, and a portion penetrating the control members 53, 53 are provided with long holes. Thus, the swinging of the control members 53, 53 is prevented, and the second lift arms 13, 13 can be slightly swung, so that the lift plate 3 has an angle of about 5 ° in the embodiment. Can be tilted. Then, the display device 6 can be inclined with respect to the wall surface 2 by this angle. FIG. 17 shows this state.
It is.

In this state, when the support plate 5 is returned to the original position, the stopper pin 47 which rotates together pushes one of the locking pieces 49a of the lock plates 49, 49 to retreat the lock plates 49, 49 to return to the original position. It is released by returning to the position.

[0025]

The present invention is configured as described above.
The following effects can be obtained.

According to the first aspect of the present invention, the horizontally long display device can be held in the horizontally long state or in the vertically long state, and in the case of the horizontally long display apparatus, the display apparatus is set to an appropriate inclination angle corresponding thereto. The lower end of the display device can be tilted by bringing the lower end portion into contact with a wall surface, and in the case of a vertically long display device, the lower end portion of the display device is tilted to an appropriate inclination angle without contacting the wall surface. Therefore, it is possible to bring about an effect that the degree of freedom in the installation position and height of the flat screen display device having a large screen is increased.

According to the second aspect of the present invention, the same effect as that of the first aspect is obtained, and the swing angle of the lift arm is regulated by operating the rotating mechanism with a simple configuration. The lift operation and the tilt operation of the lift plate according to the installation angle (horizontal type or vertical type) can be performed.

According to the third aspect of the present invention, the display device can be rotated at a fixed position with a simple configuration while having the same effects as the first aspect. It can be stably stopped and held at the position and the vertically long position.

[Brief description of the drawings]

FIG. 1 is a front view when a display device is attached to a screen angle adjustment device for a display device according to the present invention in a landscape orientation.

FIG. 2 is a side view of the state of FIG. 1 as viewed from the side.

FIG. 3 is a side view of a state where the display device is inclined by 20 ° from the state of FIG. 2;

FIG. 4 is a front view of a screen angle adjusting device for a display device according to the present invention.

FIG. 5 is a right side view of FIG.

6 lifts the lift plate from the state of FIG.
It is a side view of the state inclined by 0 degree.

FIG. 7 is a sectional view taken along line AA of FIG. 4;

FIG. 8 is a sectional view taken along line BB of FIG. 4;

FIG. 9 is a sectional view taken along line CC of FIG. 4;

FIG. 10 is a sectional view taken along line DD of FIG. 4;

FIG. 11 is a sectional view taken along line EE of FIG. 4;

FIG. 12 is a sectional view taken along line FF of FIG. 4;

FIG. 13 is a front view of a state where the support plate is rotated by 90 ° from the state of FIG. 1;

FIG. 14 is a side view of FIG.

FIG. 15 is a side view of a state where the display device is inclined by 5 ° from the state of FIG. 14;

FIG. 16 is a front view of a state where the support plate is rotated by 90 ° from the state of FIG. 4;

FIG. 17 is a right side view of the state in which the lift plate is lifted by 5 ° from the state of FIG. 16;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base plate 2 Wall surface 3 Lift plate 4 Lift means 5 Support plate 6 Display device 11 1st lift arm 13 2nd lift arm 15 1st tilt mechanism 16 2nd tilt mechanism 27 Lock means 30 Rotation mechanism 32 Fixed shaft 33 Friction mechanism 34 Cam Plate 43 Locking member 45 Lock member 47 Stopper pin 48 Lift angle restricting means 49 Lock plate 50 Tension coil spring 52 Lock pin 53 Control member

Claims (3)

[Claims] 1. A base plate attached to a wall of a building, a lift plate attached to the base plate so as to be liftable and tiltable at a free stop via lift means using a link mechanism, and a rotation mechanism attached to the lift plate. A support plate for mounting a display device that is rotatably mounted via the support means, wherein the lift means has lift angle regulating means configured to select a lift position in at least two stages of inclination angles, A screen angle adjustment device for a display device, characterized in that the rotation mechanism has a lock means that can be locked at a first position and a second position rotated by 90 degrees from the first position. 2. The lift angle adjusting means has a lock plate that moves in conjunction with the rotation mechanism and a lock pin attached to the lock plate, and the lock pin restricts movement of a lift arm of the lift means. The screen angle adjusting device for a display device according to claim 1, wherein the screen angle adjusting device is configured to perform the adjustment. 3. The rotating mechanism includes a cam plate that rotates together with a support plate, a first locking recess provided on the cam plate, and a second locking recess provided at the second position on the cam plate. It is characterized by comprising a concave portion, a locking member that engages with the first locking concave portion and the second locking concave portion, and a lock plate that locks the locking member at a first position and a second position. The screen angle adjusting device for a display device according to claim 1, wherein