JP2000267579A - Display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display device excellent in convenience and operability even on a desk, etc., by improving a structure of a support arm for supporting a flat type display part, etc. SOLUTION: A support arm for supporting a display part is comprised of a 1st-3rd arm parts 5-6, especially the 2nd arm part 6 is comprised of a 1st tilt unit 6B, a 2nd tilt unit 6C, a 1st link member 6D, a 2nd link part 6E, and a tension coil spring 6F housed in a case 6A, respectively. And, a linkage mechanism is arranged which forms a parallelogram having two fixed points of the 1st link member 6D and the 1st tilt unit 6C, and the 2nd tilt unit 6D, respectively, and having two linking points of the 2nd link member 6E and the 1st arm part 5, and the 3rd arm part 7, respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device such as an image display device (monitor device) of a personal computer, and more particularly to a support arm structure for supporting a display unit of a flat display device on a desk or the like.

[0002]

2. Description of the Related Art Hitherto, a so-called flat display device having a flat display unit has been known as an image display device (monitor device) of a personal computer, an in-vehicle liquid crystal television monitor, or the like. By the way, as a support arm for supporting the display unit of the in-vehicle liquid crystal television monitor on the mounting part in the interior of the automobile, a coil spring-shaped flexible arm has been often used conventionally (Japanese Patent Laid-Open No. 9-105923, See JP-A-2-96794).

[0003]

When the above-mentioned flexible room is applied to an in-vehicle liquid crystal television monitor, it can be said that the flexible room is effective in that the position of the user is set, impact resistance, and the like. However, when applied to a flat-panel image display device (monitor device) of a personal computer, when the display unit is moved, the coil-shaped arm has a spring property so that the display unit does not stop at the position where the user wants to move, When the user moves the part, the user supports and moves a part of the coil-shaped arm, and also when storing the coil-shaped arm, the coil-shaped arm becomes U-shaped or S-shaped. Since a circle was drawn, it was impossible to store it in a small size, and no consideration was given to operability on a desk, so that there was a problem in terms of user convenience.

As a technique for solving such a problem, there has been proposed a support arm of a display device in which a plurality of arms are configured to be bendable via joints (Japanese Patent Application Laid-Open No. Hei 4 (1994)).
No. 15680). However, in this configuration, since each arm is simply connected by a joint, for example, when the arm is swung to change the height position of the display, the display is first used by the user. Even if it is in a state in which it is positioned forward, the display unit tilts due to the swing of the arm unit, and it is necessary to move the display unit itself to a state in which it is positioned forward with respect to the user,
Each time, it is necessary to adjust the direction of the display unit, and there is a problem that operability is poor.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and provides a display device having good usability and operability even on a desk or the like by improving the structure of a support arm for supporting a flat display unit or the like. The purpose is to do.

[0006]

According to the present invention, there is provided a display apparatus comprising: a display unit; and a support arm for supporting the display unit. A first arm portion rotatably attached to an installation portion of the device about an axis extending in a vertical direction, and a first arm portion rotatable about an axis extending in a horizontal direction with respect to the first arm portion and arbitrarily rotated A second arm portion fixedly connected at the moving position; and a second arm portion rotatably connected about an axis extending in a horizontal direction with respect to the second arm portion and fixedly connected at an arbitrary rotation position, and displayed. A third arm unit rotatably connected around a shaft extending in the horizontal direction and fixed at an arbitrary rotation position, the second arm unit being provided at one end thereof. The first arm A first tilt unit including a mounting plate portion to which the connecting end of the mounting plate is fixedly mounted, and a shaft portion rotatably mounted to the mounting plate portion and fixed at an arbitrary rotation position; and An attachment plate provided at the end, to which the connection end of the third arm is fixedly attached; and a shaft attached to the attachment plate so as to be rotatable and fixable at an arbitrary rotation position. , A second tilt unit, and one end fixed to the shaft of the first tilt unit,
The other end is fixed to the shaft of the second tilt unit.
And a second link member having one end rotatably connected to the connection end of the first arm and the other end rotatably connected to the connection end of the third arm. , One end of the second link member is engaged with the end of the first arm on the connecting portion side, and the other end is engaged with the end of the first link member on the fixed portion side of the second tilt unit. And a case for accommodating the first tilt unit, the second tilt unit, the first link member, the second link member, and the tension spring, respectively.
Two fixed points of the link member, the first tilt unit, and the second tilt unit, and two connection points of the second link member, the first arm portion, and the third arm portion, Are provided with parallelogram-shaped link mechanisms each having a joint.

[0007] In this case, the first arm is rotatably supported at one end about an axis extending in a vertical direction with respect to the installation portion of the display device, and the other end extends in the lateral direction. , And one end is rotatably supported about an axis that extends vertically with respect to the other end of the first rotation support member, and the second arm extends horizontally in the other end. A second rotation support member that is rotatable about an axis and fixedly connected at an arbitrary rotation position.

The first arm is connected to the third arm so that one end is rotatable about an axis extending in the horizontal direction with respect to the second arm and is fixed at an arbitrary rotation position. A vertical rotation member, and a horizontal rotation member, one end of which is rotatably connected around an axis extending vertically to the other end of the vertical rotation member and can be fixed at an arbitrary rotation position,
One end is rotatably connected to the other end of the horizontal rotation member about an axis extending in the horizontal direction and is fixable at an arbitrary rotation position, and a bracket fixed to the back of the display unit is fixed to the other end. And a second vertical rotation member to be used.

Further, the support arm includes a clamp to which the first arm portion is rotatably attached around an axis extending in a vertical direction and is detachably fixed to an installation portion of the display device. Is preferred.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in more detail based on embodiments shown in the drawings. First, FIG. 1 to FIG. 4 show a flat display device as one embodiment of the display device of the present invention.

That is, the flat display device comprises a display unit 1 and a support arm 2 for supporting the display unit 1. The display unit 1 employs a liquid crystal display and is formed in a square planar shape.

The support arm 2 is provided with a clamp 4 which is detachably fixed to, for example, an edge of a desk 3 as an installation portion of the display device, and is rotatably mounted on the clamp 4 about an axis extending vertically. First arm 5
A second arm unit 6 connected to the first arm unit 5 so as to be rotatable about an axis extending in the horizontal direction and fixed at an arbitrary rotation position, and a second arm unit 6. The display unit 1 is rotatable about an axis extending in the horizontal direction and can be fixed at an arbitrary rotation position, and the display unit 1 is rotatable about an axis extending in the horizontal direction and can be fixed at an arbitrary rotation position. And a third arm 7 connected to the third arm 7.

The clamp 4 includes a holding member 4A and a fastening member 4B. The holding member 4A is formed in a substantially U-shape in which an upper piece 4a is formed longer than a lower piece 4b. The member 4B is composed of a screw shaft 4d screwed into a nut portion 8 fixed to the through hole 4c of the lower piece 4b of the holding member 4A, and a holding portion 4e fixedly attached to the upper end of the screw shaft 4d. Is done.

The first arm portion 5 includes a first support shaft 5A,
It comprises a second support shaft 5B, a first rotation support member 5C, and a second rotation support member 5D. First spindle 5A
Is vertically fixed on the upper surface of the upper piece 4a of the holding member 4A and fixedly attached thereto. The first rotation support member 5C is substantially L
A support hole 5a is formed at one end of the first support shaft 5A so as to be rotatably fitted and supported by the first support shaft 5A, and a second support shaft 5B is vertically set at the other end. A fixing hole 5b to be fitted and fixed is formed.

The second rotation supporting member 5D includes a substantially cylindrical portion 5c having an upper surface formed in an arcuate surface, and a round connecting piece 5d which projects from the upper surface of the substantially cylindrical portion 5c and will be described in detail later. A support hole 5e is formed at the center of the substantially cylindrical portion 5c so as to be rotatably fitted and supported at the upper end of the second support shaft 5B.

The third arm unit 7 includes a third tilt unit 7A, two fourth tilt units 7B, a first vertical rotation member 7C, a horizontal rotation member 7D, and a second vertical rotation member 7D. (A first tilt unit and a second tilt unit will be described later).
The third and fourth tilt units 7A and 7B each include a mounting plate portion a and a shaft portion b that is rotatably mounted to the mounting plate portion a and fixed at an arbitrary rotation position. .

In the tilt units 7A and 7B, for example, a shaft b is rotatably inserted through a mounting plate a, and a spring is attached to a portion where the mounting plate a and the shaft b are assembled. With the interposition of a washer or the like, the mounting plate portion a and the shaft portion b are allowed to rotate relative to each other only when a rotation torque of a predetermined value or more is applied. The first vertical rotation member 7C includes a substantially cylindrical portion 7a and the substantially cylindrical portion 7a.
and a round connecting piece 7b as a connecting end, which will be described in detail later, protruding from the side surface of the third tilt unit 7B, and the shaft part b of the third tilt unit 7B fits into the center of the substantially cylindrical part 7a. A fixing hole 7c to be fixed is formed.

The lateral rotation member 7D is formed in a substantially L-shape, and the mounting plate portion a of the third tilt unit 7A is inserted and fixed in a groove 7d formed on the lower surface of one end thereof. . The second vertical rotation member 7E is a bracket 9 fixedly attached to the back surface of the display unit 1 of the display device.
And a pair of support portions 7e which are fixed to and attached to the mounting surface side by screws 10 while being separated to the left and right.

The two fourth tilt units 7B
Each shaft portion b is fitted and fixed in fixing holes 7f formed on both side surfaces of the other end portion of the horizontal rotation member 7D, and each mounting plate portion a has a pair of second vertical rotation members 7E. The support portion 7e is inserted and fixed in a groove 7g formed on the inner surface of each support portion 7e. The second arm 6 connects the first arm 5 and the third arm 7 described above, and includes a hollow case 6A and a first tilt unit 6B.
, A second tilt unit 6C, two first link members 6D, two second link members 6E, and a tension coil spring 6F.

The case 6A is formed in a rectangular cylindrical shape having both ends in the longitudinal direction formed in an arcuate surface, and a cut groove 6a having a predetermined angle range is formed in both ends. Inside the lower end of the case 6A, the connecting piece 5d of the first arm 5 is inserted and arranged via the lower cut groove 6a, and inside the upper end of the third arm 7 The connecting piece 7b is inserted and arranged via the upper cut groove 6a.

First and second tilt units 6B, 6
C is the third and fourth tilt units 7 described above.
A and 7B have the same configuration, and each has a mounting plate portion c,
And a shaft d that is rotatable with respect to the mounting plate c and can be fixed at an arbitrary rotation position. The mounting plate portion c of the first tilt unit 6B is fixedly mounted to the connecting piece 5d of the first arm portion 5 with a screw 6b inside the case 6A, and the mounting plate portion c of the second tilt unit 6C.
Is fixedly attached to the connecting piece 7b of the third arm portion 7 with the screw 6c inside the case 6A.

The two first link members 6D are made of a long plate material, and connect the connecting piece 5d of the first arm portion 5 and the third arm portion 7 along the longitudinal direction inside the case 6A. The pieces 7b are arranged at positions that sandwich the pieces 7b from both sides. In each of the first link members 6D, both upper and lower ends of FIG. 1 are bent to the same side, and a mounting piece 6d protruding laterally is provided on a side near the upper end. It is formed integrally.

The two second link members 6E are each formed of an elongated plate, and are disposed outside the first link member 6D along the longitudinal direction inside the case 6A. Here, a substantially semicircular hole 6e is formed in each of the bent both ends of the first link member 6D, and the upper and lower holes 6e are respectively formed in the upper and lower holes 6e. The substantially semi-cylindrical portions formed on the shaft portions d of the first and second tilt units 6B and 6C are fitted.

On the other hand, the upper end of the second link member 6E in FIG. 1 is rotatably connected to the connecting piece 7b of the third arm 7 via the pin 11, and the lower end is The first arm 5 is rotatably connected to a connecting piece 5 d of the first arm 5 via a pin 12. With such a configuration, the first link member 6D and the first tilt unit 6B,
Are parallel joints, each of which has two fixed points with the tilt unit 6C, and two connection points with the second link member 6E, the first arm 5, and the third arm 6, respectively. A shaped link mechanism is provided.

The tension coil spring 6F is arranged between the connecting piece 7b of the third arm 7 and the connecting piece 5d of the first arm 5 inside the case 6A, and the upper end in FIG. 1 is engaged with the pin 13 fixed to the mounting piece 6d of the first link member 6D, and the lower end of FIG. 1 is fixed to the lower end of FIG. 1 of the second link member 6E. The pin 14 is engaged.

Next, the operation and operation of each of the above components will be described. The clamp 4 has its holding member 4A
Is inserted into the edge of the plate portion of the desk 3 or the like so as to sandwich the edge up and down, and the screw shaft 4d of the tightening member 4B is rotated with respect to the nut portion 8 so that the holding portion 4e is By pressing it against the lower surface of the edge of the plate portion of the table 3, it is fastened and fixed to the edge of the plate portion such as the desk 3.

In the first arm 5, the first rotation supporting member 5C is rotatable with respect to the first support shaft 5A, is swingable in the horizontal direction, and changes its direction with respect to the upper surface of the desk 3. . Further, the second rotation support member 5D can rotate with respect to the second support shaft 5B, and the position with respect to the first rotation support member 5C is changed.

In the third arm portion 7, the horizontal rotation member 7D can rotate with respect to the first vertical rotation member 7C,
Swingable in the lateral direction. The second vertical rotation member 7E can rotate with respect to the horizontal rotation member 7D, and can swing vertically.

As described above, the second arm section 6 has two fixed points of the first link member 6D, the first tilt unit 6B, and the second tilt unit 6C, respectively.
By providing a parallelogram-shaped link mechanism having joints at the two link points of the second link member 6E, the first arm 5 and the third arm 6, respectively. It has the following unique effects.

That is, for example, when the case 6A is tilted to the right in FIG. 1 and swings, the swing of the case 6A causes the first link member 6D to swing. That is, since the lower end of the first link member 6D is connected to the shaft d of the first tilt unit 6B, the shaft d is connected to the mounting plate c of the first tilt unit 6B. And the first link member 6D swings.

By swinging the case 6A and the first link member 6D in this manner, the third arm 7 moves downward in FIG. 1. At this time, the second link member 6E
The position of the connecting portion between the connecting piece 7b and the connecting piece 7b by the pin 11 at the upper end of the second link member 6E moves to the right side in FIG. Since the second link member 6E does not change,
The pin 1 at the upper end of the
1 moves downward, and at the same time, a rotational force in the left direction of FIG. 1 is applied to the connecting piece 7b, and the connecting piece 7b is rotated about the shaft d of the second tilt unit 6C. Rotate left. Therefore, the third arm 7 swings upward while moving downward in FIG.

That is, although the third arm 7 moves downward in FIG. 1, it swings upward, so that the third arm 7 moves in the original horizontal state. This means that even if the second arm 6 swings, the bracket 9 is maintained in the vertical state in FIG. 1, and the display 1 connected to the bracket 9 remains in the vertical state. .

That is, even when the second arm 6 is swung to change the height position of the display unit 1, if the display unit 1 is initially positioned to face the user forward. In this state, it is not necessary to move the display unit 1 to a state in which the display unit 1 itself is positioned forward with respect to the user. In such an operation, the first tilt unit 6B
And by the operation of the second tilt unit 6C,
Arm portion 6 stops at the swing change position, and is held at the same position as long as no external force is applied.

If the display section 1 is desired to be at a position inclined with respect to the user, the bracket 9 may be rotated with respect to the third arm section 7. As described above, even when the display unit 1 is at a position inclined with respect to the user, if the second arm unit 6 is swung to change the height position of the display unit 1,
The display unit 1 maintains a state in which the display unit 1 is inclined with respect to the user.

The operation of the second arm portion 6 will be described more simply and more clearly according to the schematic diagram of FIG.
In the second arm section 6, two tilt units 6
B, 6C, the first link member 6E, and the second link member 6E are linked to each other so as to form a parallelogram link, and are connected to the two fixed points A, B and the two links. There are points C and D.

Accordingly, when the first link member 6D swings rightward about the fixed point A, the second link member 6E swings around the connection point C. At this time, the fixed point B and the connection point D move to the lower side while moving to the right side of the figure, and the connection point D moves from the initial position E in the downward direction indicated by the arrow F, A leftward rotational force indicated by an arrow G is applied to the connecting piece 7b, and the connecting piece 7b rotates leftward about the shaft d of the second tilt unit 6C.

For this reason, although the connection point D moves downward in the figure, by rotating to the left in the figure, the third arm 7 connected to the connection point D moves in a horizontal state, The bracket 9 connected to the arm unit 7 of the third unit 3 is maintained in a vertical state, and the display unit 1 connected to the bracket 9 is maintained.
Remain vertical.

This action is similarly exerted even when the second arm 6 is swung to the left in the figure and the first link member 6D is swung to the left around the fixed point A. Thus, the display unit 1 is maintained in a vertical state. Incidentally, when the second link member 6E does not exist in the second arm portion 6, when the connection point D moves downward in the drawing, the third arm portion 7 connected to the connection point D becomes horizontal. The display unit 1 is tilted downward from the state, and the display unit 1 connected to the third arm unit 7 is not maintained in the vertical state shown in FIG.

Here, the tension coil spring 6
F is one end of the mounting piece 6 of the first link member 6D.
d, and the other end is engaged with the lower end of the second link member 6E, so that the first link member 6D swings as described above, When the link member 6E moves downward, an elastic repulsive force is applied to the second link member 6E so as to prevent the second link member 6E from moving downward. That is, the third arm 7
Is applied so that the swing of the third arm 7 is not suddenly performed, so that the swing of the third arm portion 7 can be performed gently.

Conversely, when the first link member 6D returns from the swinging position to the current position, the second link member 6E applies an elastic force to assist the upward movement of the second link member 6E. Act on the link member 6E. That is, an elastic restoring force is applied to assist the force for returning the third arm portion 7,
The tilting unit 6B, 6C, which is hard to rotate the heavy display unit 1, is rotated and the lifting force is reduced.

The display unit 1 of the display device having such a configuration.
Various modes of the position change are, for example, as shown in FIGS. 6A to 6F, and by rotation of the entire first arm portion 5,
The support arm 2 itself rotates, and the display unit 1 rotates within a range of 360 degrees. The rotation of only the second rotating member 5D of the first arm 5 causes the second and third arms 6, 6 to rotate.
7 rotates, and the display unit 1 rotates in a range of 360 degrees.

Further, the swing of the second arm 6 causes
As described above, the height position can be changed while the display unit 1 is kept in the vertical state (in a state where the display unit 1 is positioned forward with respect to the user). Further, in the third arm unit 7, by rotating the horizontal rotation member 7D with respect to the first vertical rotation member 7C, only the display unit 1 can change the direction in the horizontal direction, and By rotating the vertical rotation member 7E with respect to the horizontal rotation member 7D, only the display unit 1 can be turned in the vertical direction.

Here, the support arm 2 in this embodiment is
The shape of the first arm portion 5 is a unique shape extending in the lateral direction after rising from the clamp 4,
There are the following advantages. That is, as described above, the rotation of the entire first arm 5 causes the support arm 2 itself to rotate, and the display 1 to rotate within a range of 360 degrees. In such a 360-degree rotation range of the display unit 1, the position that the display unit 1 can take is that the first arm unit 5 is simply in the vertical direction because the first arm unit 5 is substantially L-shaped. It extends over a wider area than the case of a rod shape extending to

This means that when the support arm 2 is attached to the edge of the desk 3 or the like, the amount of change in the distance from the edge of the desk 3 or the like to the display unit 1 is large, and FIG. In this case, the distance between the display unit 1 and the user is reduced. vice versa,
7 (B), the distance between the display unit 1 and the user increases. In other words, when the overhang of the display unit 1 from the edge of the desk 3 or the like becomes small and the width of the desk 3 or the like in the front-rear direction is short,
The support arm 2 and the display unit 1 are not obstructed in the space above the desk or the like, and can be used effectively on the desk or the like.

In the case where the first arm 5 'is simply a bar extending in the vertical direction and the amount of projection of the display unit from the edge of the desk or the like is reduced, as shown in FIG. In addition, it is necessary to make the second arm portion 6 'and the third arm portion 7' in a bent state. In this case, the joint portion supporting the heavy display portion 1 becomes two points, In addition to the configuration of the embodiment, it is necessary to add a spring and a damper, and there is an inconvenience that the structure becomes complicated.

[0046]

According to the display device of the present invention, the support arm for supporting the display section is composed of the first to third arm sections. In particular, the second arm section is housed in the case. A first tilt unit, a second tilt unit, a first link member, a second link member, and a tension spring, and the first link member, the first tilt unit, and the second tilt unit, respectively. 2
A parallelogram-shaped link mechanism is provided in which two fixed points and two connection points of the second link member, the first arm portion, and the third arm portion are joints. Therefore, it is possible to provide a display device with good usability and operability even on a desk or the like.Especially, even when it is desired to change the height position of the display unit, for example, the display unit is initially positioned to face the user forward or the like. If it is in the state,
Maintaining this state, there is no need to bother to move the display unit itself to a position facing forward or the like with respect to the user,
Excellent operability. One end of the tension spring is engaged with the end of the second link member on the side of the connecting portion of the first arm, and the other end is connected to the end of the first link member on the side of the fixed portion of the second tilt unit. Because it was configured to engage with the part
The swing of the third arm unit for lowering the display unit is performed gently, and the third arm unit for raising the heavy display unit.
There is an advantage that the force for swinging the arm portion can be reduced.

In this case, the first arm is rotatably supported at one end about an axis extending in the vertical direction with respect to the installation portion of the display device, and the other end extends in the lateral direction. A rotation support member, an axis having one end rotatably supported about an axis extending vertically with respect to the other end of the first rotation support member, and a second arm extending horizontally in the other end. A second rotation support member rotatably connected to the center and fixed at an arbitrary rotation position, if the support arm is attached to an edge of a desk or the like, the display is performed from the edge of the desk or the like. The distance between the display and the user can be increased, and the distance between the display and the user can be increased. When the width of the screen is short, the support arm and display Without hinder Te, it can be used effectively over such as a desk.

The first arm is connected to the third arm so that one end of the third arm is rotatable about an axis extending in the horizontal direction with respect to the second arm and can be fixed at an arbitrary rotation position. A vertical rotation member, and a horizontal rotation member, one end of which is rotatably connected around an axis extending vertically to the other end of the vertical rotation member and can be fixed at an arbitrary rotation position,
One end is rotatably connected to the other end of the horizontal rotation member about an axis extending in the horizontal direction and is fixable at an arbitrary rotation position, and a bracket fixed to the back of the display unit is fixed to the other end. And the second vertical rotation member to be formed, by rotating the horizontal rotation member with respect to the first vertical rotation member, only the display unit can change the direction in the horizontal direction, By rotating the second vertical rotation member with respect to the horizontal rotation member, only the display unit can be turned in the vertical direction, and the display unit can be moved in various directions while keeping the position of the arm unit as it is. Can be changed.

Further, a clamp is provided on the support arm so that the first arm portion is rotatably mounted about an axis extending in the vertical direction and is detachably fixed to the installation portion of the display device. Then, the support arm can be easily and securely fastened and fixed to a desk or the like, and can be easily removed.

[Brief description of the drawings]

FIG. 1 is a side sectional view of a flat display device showing one embodiment of a display device of the present invention.

FIG. 2 is a front view of the same.

FIG. 3 is a plan view of the same.

FIG. 4 is a sectional view taken along the line AA in FIG.

FIG. 5 is a schematic diagram for explaining the operation of a second arm unit in the embodiment.

FIGS. 6A and 6B are diagrams showing various modes of changing the position of the display unit in the embodiment described above, FIG. 6A being a side view, and FIG.
Is a front view, and (C) is a plan view.

FIGS. 7A and 7B are schematic diagrams illustrating the effects of the embodiment. FIG.

FIG. 8 is a schematic diagram for explaining a problem of the related art.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Display part 2 Support arm 3 Desk 4 Clamp 5 1st arm part 6 2nd arm part 6A Case 6B 1st tilt unit 6C 2nd tilt unit 6D 1st link member 6E 2nd link member 6F Pull Coil spring 7 Third arm

Claims (4)

[Claims] 1. A display device comprising a display unit and a support arm for supporting the display unit, wherein the support arm is rotatable about an axis extending in a vertical direction with respect to an installation portion of the display device. A first arm portion to be attached; a second arm portion rotatably connected to an axis extending in a horizontal direction with respect to the first arm portion and fixed at an arbitrary rotation position; The second arm unit is rotatably connected about an axis extending in the horizontal direction as a center and can be fixed at an arbitrary rotation position,
And a third arm unit connected to the display unit so as to be rotatable about an axis extending in the horizontal direction and fixed at an arbitrary rotation position. The second arm unit is provided at one end thereof. A mounting plate portion to which the connection end of the first arm portion is fixedly mounted, and a shaft portion rotatably mounted to the mounting plate portion and fixed at an arbitrary rotation position. (1) a tilt unit, a mounting plate provided at the other end, to which the connecting end of the third arm is fixedly mounted, and rotatable with respect to the mounting plate and fixed at an arbitrary rotation position A second tilt unit comprising a shaft part which is assembled as possible, a first tilt part having one end fixed to the shaft part of the first tilt unit and the other end fixed to the shaft part of the second tilt unit. One end portion rotatably connected to the connection end portion of the first arm portion A second link member having the other end rotatably connected to the connection end of the third arm portion; and one end portion being connected to the connection portion side end of the first arm portion of the second link member. A tension spring that is engaged and the other end of which is engaged with an end of the first link member on the fixed portion side of the second tilt unit; a first tilt unit, a second tilt unit, and a first link And a case accommodating the second link member and the extension spring, respectively. The two fixing points of the first link member, the first tilt unit and the second tilt unit, and the second 2 of the link member, the first arm portion, and the third arm portion.
A display device comprising: a parallelogram-shaped link mechanism having two connection points as joints. 2. The first arm portion has one end rotatably supported about an axis extending in a vertical direction with respect to an installation portion of the display device, and the other end extending in a lateral direction. A rotation support member, an axis having one end rotatably supported about an axis extending vertically with respect to the other end of the first rotation support member, and a second arm extending horizontally in the other end. 2. The display device according to claim 1, further comprising: a second rotation support member rotatably connected around the center and fixed at an arbitrary rotation position. 3. The first arm is connected to the second arm such that one end is rotatable about an axis extending in a horizontal direction with respect to the second arm and is fixed at an arbitrary rotation position. A longitudinal rotation member, one end of which is rotatably connected to the other end of the vertical rotation member about an axis extending in the vertical direction and which is fixable at an arbitrary rotation position; The part is connected to the other end of the horizontal rotation member so as to be rotatable about an axis extending in the horizontal direction and is fixed at an arbitrary rotation position, and a bracket fixed to the back surface of the display unit is fixed to the other end. The display device according to claim 1, further comprising a second vertical rotation member. 4. The support arm is provided with a clamp to which the first arm portion is rotatably attached around an axis extending in a vertical direction and is detachably fixed to an installation portion of the display device. Claim 1 characterized by the above-mentioned.
3. The display device according to any one of 3.