JPH09114387A - Angle adjusting device for display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate attachment and detachment by including a key hole part in which the key part of a T-sectioned holding shaft is fit and providing a holding member which elastically couple a rotary base with a base. SOLUTION: The key hole part 41 of the holding member 40 is fitted onto the key part 35 of the T-sectioned holding shaft 30 and rotated to only fix the holding member 40 between a projection part and an elastic projection part, thereby coupling the rotary base 1 and base 10 with each other. Therefore, the lower end part of the holding shaft 30 need not be fixed to the reverse surface of the base together with a leaf spring and a washer, and the trouble of fitting operation for the angle adjusting device to the display device is reduced. Further, the end part of the holding member 40 is made to abut against the projection part and the long-diameter direction of the seat part 32 of the holding shaft 30 is matched with the long-diameter direction of a long hole 7 of the rotary base 1 to enable the base 10 and holding shaft 30 to be detached without detaching the rotary base 1 from the display device. Therefore, the rotary base 1 need not be detached temporarily and then fitted again, and then the trouble of detaching operation is reducible.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an angle adjusting device for a display device, and more particularly to an angle adjusting device for a display device that supports the display device so that it can be raised and lowered and horizontally rotated.

[0002]

2. Description of the Related Art FIG. 11 is a partially omitted front view showing a conventional angle adjusting device disclosed in Japanese Unexamined Patent Publication No. 4-46380 and a usage state thereof. In the figure, this angle adjusting device includes a rotary base 51 including a spherical bowl-shaped portion 52,
The base 53 includes an annular sliding portion 54 that slides on the lower surface of the spherical bowl-shaped portion 52.

A long hole opened in the central portion of the spherical bowl-shaped portion 52 of the turntable 51, a shaft hole opened in the central portion of the base 53 and an H-shaped cross-section holding shaft are inserted from above to rotate. The moving base 51 and the base 53 are elastically connected. The turntable 51 is screwed to the bottom surface of a display device (for example, a CRT display monitor) 61 and also serves as a bottom lid of the display device 61.

Thus, the user of the display device 61 can freely rotate the screen 62 in the elevation direction and the horizontal rotation direction within a predetermined range, and can adjust the screen 62 to a desired angle.

The angle adjusting device is provided as standard on the display device 61, but there are some users who do not need the angle adjusting device for various reasons such as using a plurality of display devices closely arranged. For such a user, the display device 61
After removing the base 53 and the turntable 51 from the above, after removing the H-shaped section holding shaft, only the turntable 51 is attached to the display device 61 again, and the rubber stand is screwed to the four corners of the lower surface of the turntable 51. I had delivered it.

[0006]

Since the conventional angle adjusting device for a display device is configured as described above, it is often used for removing the angle adjusting device when delivering it to a user who does not need the angle adjusting device. Was necessary.

Therefore, in Japanese Utility Model Laid-Open No. 6-9277,
An angle adjusting device has been proposed in which the base 53 and the holding shaft can be removed without removing the rotary base 51 from the display device 61. In this angle adjusting device, the T-shaped cross-section holding shaft is inserted from above into the long hole of the rotary base 51 and the shaft hole of the base 53, and the lower end of the T-shaped cross-section holding shaft is attached to the base with the leaf spring, washer, and the like. It is screwed to the lower surface of 53. When the product is delivered to a user who does not need the angle adjusting device, the long side direction of the seat portion of the T-shaped cross-section holding shaft and the long diameter direction of the long hole of the turntable 51 are aligned with each other, and the T-shaped cross section together with the base 53. The holding shaft was pulled out from the long hole.

However, in this angle adjusting device, the lower end of the T-shaped cross-section holding shaft together with the leaf spring, washer, etc.
3 had to be fixed to the lower surface with screws, and much labor was required to attach it to the display device.

Therefore, a main object of the present invention is to provide an angle adjusting device for a display device which can be easily attached and detached.

[0010]

An angle adjusting device for a display device according to the present invention is mounted on the bottom surface of the display device, and includes a spherical bowl-shaped portion which is curved downward and has a long hole opened in the center thereof. A moving base, a base including an annular sliding portion on which a lower surface of the spherical bowl-shaped portion of the rotating base slides, and a base having an axial hole opened in the center thereof, and the long hole of the rotating base and the base. In the angle adjusting device for a display device, which is provided with a T-shaped cross-section holding shaft that penetrates through the shaft hole of the base and supports the display device so that the display device can be raised and lowered horizontally, the seat portion of the T-shaped cross-section holding shaft is A long side is formed into a rectangular shape which can be inserted through the long hole when the long side direction of the rotary base coincides with the long diameter direction of the long hole, and a key portion is provided at a lower end portion of the T-shaped cross-section holding shaft. , Including a keyhole portion fitted with the key portion of the T-shaped section holding shaft, together with the T-shaped section holding shaft The a Kikaido table and the base holding member for elastically connecting is characterized in that it is provided.

In this angle adjusting device of the display device, the rotary base and the base are simply formed by rotating the holding member after fitting the key portion of the lower end portion of the T-section holding shaft and the key hole portion of the holding member. And can be connected. Therefore, the angle adjusting device can be mounted more easily than in the conventional case in which the lower end of the T-shaped cross-section holding shaft needs to be screwed to the lower surface of the base together with the leaf spring, washer and the like at the time of connection.

The holding member fitted with the T-shaped cross-section holding shaft is rotated so that the long side direction of the seat portion of the T-shaped cross-section holding shaft coincides with the long diameter direction of the long hole of the turntable. The cross-section holding shaft can be pulled out below the turntable. Therefore, without removing the rotary base from the display device, the base and T
The cross-section holding shaft can be removed, and the rotation adjustment device can be easily removed.

Further preferably, in the standard use state in which the long diameter direction of the long hole of the rotary table is oriented in the front-back direction, the long side direction of the seat portion of the T-shaped cross-section holding shaft is rotated. To fix the first projection part that is in contact with one side of the holding member for making it orthogonal to the major axis direction of the long hole of the table, and the holding member that is in contact with the first projection part in one side Elastic protrusions are provided on the lower surface of the base. Accordingly, it is possible to prevent the seat portion of the T-shaped cross-section holding shaft from coming off from the long hole of the turntable during use. Also,
Since the protrusion for fixing the holding member is the elastic protrusion, the angle adjusting device can be easily attached and detached.

Further preferably, in the standard use state, the holding member for aligning the long side direction of the seat portion of the T-shaped cross section holding shaft with the long diameter direction of the long hole of the rotary table. A second protrusion that is in contact with the other side is provided on the lower surface of the base. As a result, the T-shaped cross-section holding shaft can be easily pulled out from the long hole of the turntable, and the angle adjusting device can be easily removed.

Further preferably, a groove in the same direction as the elongated hole is formed at the center of the bottom surface of the rotary table, and the groove is formed in the central portion of the lower surface of the spherical bowl-shaped portion of the turntable. A third opening for limiting the horizontal rotation angle of the rotary table, the shaft hole being opened in the portion, and the tip of the shaft hole being inserted into the groove.
Is provided at the center of the upper surface of the base. As a result, the horizontal turning angle of the turntable can be limited, and T
It is possible to prevent the character-section holding shaft from coming off from the long hole of the turntable.

[0016]

1 is a plan view showing the configuration of an angle adjusting device for a display device according to an embodiment of the present invention, FIG. 2 is a sectional view taken along line XX 'of FIG. 1, and FIG. 2 is a sectional view taken along line YY ′ of FIG. Further, FIG. 4 is a view in which the rotating portion 1 is removed from FIG. 1, FIG. 5 is a sectional view taken along line ZZ ′ of FIG. 4, and FIG. 6 is a bottom view of FIG.

1 to 6, the angle adjusting device includes a rotary base 1, a base 10, a T-shaped cross-section holding shaft 30, and a holding member 40.

The rotary base 1 includes a lower lid portion 2, a spherical bowl-shaped portion 3 and a rotation limiting portion 4. The lower lid portion 2 is screwed to the bottom surface of the display device 61 shown in FIG. 11, and constitutes the lower lid of the display device 61. The spherical bowl-shaped portion 3 is provided slightly forward of the center of the lower lid portion 2 in a downwardly curved state so as to receive the center of gravity of the display device 61.

The rotation restricting portion 4 is a protruding portion in which the central portion of the bottom surface of the spherical bowl-shaped portion 3 is raised in a rectangular shape when viewed from above,
When viewed from below, the central portion of the top surface of the spherical bowl-shaped portion 3 is a groove 6 depressed in a rectangular shape. The long side direction of the rotation limiting portion 4 coincides with the front-back direction. At the center of the upper surface 5 of the rotation restricting portion 4, a long hole 7 whose major axis direction is the front-rear direction is opened.

An annular sliding portion 11 is provided on the upper surface of the base 10. As shown in FIG. 4, the annular sliding portion 11 has an inclined surface 12 having the same curvature as that of the lower surface of the spherical bowl-shaped portion 3 of the turntable 1, and a tape-shaped sliding member 13 is bonded onto the inclined surface 12. ing. The sliding member 13 slides on the lower surface of the spherical bowl-shaped portion 3.

A protrusion 14 having a fan-shaped cross section is provided at the center of the upper surface of the base 10. As shown in FIG. 3, the protrusion 14 is inserted into the groove 6 of the rotation restricting portion 4 of the rotation base 1. The protrusion 14 includes flat sidewalls 15 that intersect at a predetermined angle (limit angle). As shown in FIG. 9, the side wall 15 comes into contact with the inner wall of the groove 6, whereby the turning angle of the turntable 1 is limited. A shaft hole 1 is provided at the center of the protrusion 14.
6 is opened. As shown in FIG. 3, a groove 34 for inserting the protrusion 17 of the T-shaped cross-section holding shaft 30 is formed in the inner peripheral wall of the shaft hole 16.

On the bottom surface of the base 10, a T-shaped cross-section holding shaft 30 is provided.
Storage hole 1 for storing the lower end of the sheet and the holding member 40
8 are formed. The bottom surface 19 of the storage hole 18 is shown in FIG.
As shown in FIG. 5, protrusions 20 and 21 and elastic protrusions 22 for positioning the holding member 40 are provided.
The elastic protrusion 22 is formed by punching the bottom surface 19 of the storage hole 18 into a U-shape. Leg portions 23 are provided at four locations around the storage hole 18, and a slip prevention member 24 is attached to the lower surface of the leg portion 23.

FIG. 7 shows a T-section holding shaft 30 and a holding member 4.
0 is a perspective view showing the configuration and the mounting method, and FIG. 8 is a plan view showing the configuration of the holding member 40.

7 and 8, the T-shaped cross-section holding shaft 30 includes a main shaft portion 31, a seat portion 32 provided so as to extend from the upper end portion of the main shaft portion 31 to both sides, and a lower end portion of the main shaft portion 31. It includes a pair of protrusions 34 provided on both sides in a direction orthogonal to the extending direction of the seat portion 32. The main shaft portion 31 penetrates the long hole 7 of the rotary base 1 and the shaft hole 16 of the base 10. As shown in FIG. 10, the main shaft portion 31 comes into contact with the end portion of the long hole 7, whereby the elevation angle of the turntable 1 is limited.

The seat portion 32 has the same shape as the elongated hole 7 when viewed from above, and is formed in such a size that the elongated hole 7 can be inserted when its major axis direction coincides with the major axis direction of the elongated hole 7. . The lower surface 33 of the seat portion 32 is formed to have a predetermined curvature and slides on the upper surface 5 of the rotation limiting portion 4. Projection 34
Together with the lower end of the main shaft portion 31 constitute the key portion 35.

On the other hand, the holding member 40 is a block having a substantially rectangular parallelepiped shape, and a keyhole portion 41 is formed on one surface thereof. The key hole portion 41 has a vertical hole portion 42 into which the key portion 35 of the T-shaped cross-section holding shaft 30 is inserted, and a horizontal hole portion 43 fitted into the protrusion 34 by relative rotation of the T-shaped cross-section holding shaft 30. Including.

Next, a method of attaching and detaching the angle adjusting device will be described. At the time of attachment, first, in the state shown in FIGS. 7 and 4, the key portion 3 of the T-shaped cross-section holding shaft 30.
5 is inserted into the key hole portion 41 of the holding member 40 through the shaft hole 16 of the base 10, and the T-shaped cross-section holding shaft 30 is rotated clockwise to fit the key portion 35 and the key hole portion 41. When the T-shaped cross-section holding shaft 30 is rotated clockwise as it is after the fitting, the end portion 44 of the holding member 40 in FIG.
The seat portion 32 of the T-shaped cross-section holding shaft 30 in FIG.
The major axis direction of is in the front-back direction.

In this state, the seat portion 32 of the T-section holding shaft 30 is provided.
Is inserted into the long hole 7 of the rotary base 1 from the lower surface side of the rotary base 1, and T
When the seat portion 32 of the cross-section holding shaft 30 is rotated 90 degrees in the counterclockwise direction, the holding member 40 rides over the elastic projection portion 22 and the space between the projection portion 20 and the elastic projection portion 22 as shown in FIG. Fixed. As a result, as shown in FIGS. 1 to 3, the rotary base 1 and the base 10 are elastically connected by the T-shaped cross-section holding shaft 30 and the holding member 40. In this state, the lower lid portion 2 is attached to the bottom surface of the display device 61.

On the other hand, at the time of removal, since the state shown in FIG. 6 is seen from the bottom of the base 10, the elastic projection 22 is pressed to rotate the holding member 40 counterclockwise so that the end 44 of the holding member 40 is removed. It is brought into contact with the protrusion 21. As a result, in FIG. 1, the longitudinal direction of the seat portion 32 of the T-section holding shaft 30 is the base 1
The slot 32 of the T-shaped cross-section holding shaft 30 can be inserted through the slot 7 of the base 10 in a state in which it coincides with the major axis direction of the slot 0 of 0. In this state, the T-shaped cross-section holding shaft 30 together with the base 10
When the is removed from the turntable 1, the removal is completed.

As described above, in this embodiment, the key portion 35 of the T-shaped cross-section holding shaft 30 and the key hole portion 41 of the holding member 40 are provided.
The rotary base 1 and the base 10 can be connected to each other simply by fitting the holding member 40 between the protrusions 20 and the elastic protrusions 22 by rotating them. Therefore, as compared with the conventional case in which the lower end of the T-shaped cross-section holding shaft 30 needs to be fixed to the lower surface of the base 53 together with a leaf spring, a washer, and the like, the work of attaching the angle adjusting device to the display device is less. Become.

Further, the end portion 44 of the holding member 40 is connected to the projection 2
1 so that the seat 32 of the T-shaped cross-section holding shaft 30 is aligned with the major axis direction of the long hole 7 of the rotary table 1 so that the rotary table 1 is not removed from the display device. 10 and the T-section holding shaft 30 can be removed. Therefore, the labor of removing the angle adjusting device can be reduced as compared with the conventional case in which the rotary base 1 has to be removed and reattached at the time of removal.

If ribs of appropriate height are provided on the upper surface 5 of the rotation restricting portion 4 of the turntable 1 and the bottom surface 19 of the housing hole 18 of the base 10, the turntable 1 and the base 10 can be provided. The pressure contact force between the two can be adjusted to an appropriate value.

[Brief description of the drawings]

FIG. 1 is a plan view showing a configuration of an angle adjusting device for a display device according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line XX ′ in FIG.

3 is a cross-sectional view taken along the line YY 'of FIG.

FIG. 4 is a diagram showing a state in which a rotary base 1 is removed from FIG.

5 is a sectional view taken along line ZZ ′ of FIG.

FIG. 6 is a bottom view of FIG. 4;

7 is a perspective view showing a configuration and an assembling method of a T-shaped cross-section holding shaft 30 and a holding member 40. FIG.

8 is a plan view showing the structure of a holding member 40. FIG.

9 is a plan view showing the operation of the angle adjusting device of the display device shown in FIGS. 1 to 3. FIG.

FIG. 10 is a cross-sectional view showing another operation of the angle adjusting device of the display device shown in FIGS. 1 to 3.

FIG. 11 is a front view showing a configuration and a usage state of a conventional angle adjusting device for a display device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rotating table 3 Spherical bowl-shaped part 6 Groove 7 Long hole 10 Base 11 Ring slide part 14 Projection part (3rd projection part) 16 Shaft hole 20 Projection part (1st projection part) 21 Projection part (1st part) 2 protrusions 22 elastic protrusions 30 T-shaped cross-section holding shaft 32 seat portion 35 key portion 40 holding member 41 key hole portion 61 display device 62 screen

Claims (4)

[Claims] 1. A display device (61) is attached to the bottom surface,
A turntable (1) including a spherical bowl-shaped part (3) which is curved downward and has a long hole (7) opened in the center thereof; and the spherical bowl-shaped part (3) of the turntable (1). The lower surface includes an annular sliding portion (11) that slides, and a shaft hole (1
6) a base (10) having an opening, and a T-shaped cross-section holding shaft penetrating the elongated hole (7) of the rotary base (1) and the shaft hole (16) of the base (10). An angle adjusting device for a display device, comprising: (30), which supports the display device (61) so that the display device (61) can be raised and lowered and horizontally rotated. The seat portion (32) of the T-shaped cross-section holding shaft (30) has a long length. The T-shaped cross-section holding shaft (30) is formed in a rectangular shape that can be inserted through the long hole (7) when the side direction coincides with the long diameter direction of the long hole (7) of the turntable (1). A key portion (35) is provided at a lower end portion of the T-shaped cross-section holding shaft (30) including a key hole portion (41) fitted with the key portion (35) of the T-shaped cross-section holding shaft (30).
0), a holding member (40) for elastically connecting the rotary base (1) and the base (10) is provided, and an angle adjusting device for a display device. 2. The seat () of the T-shaped cross-section holding shaft (30) in a standard use state in which the long diameter direction of the long hole (7) of the rotary table (1) is oriented in the front-back direction. Three
A first protrusion (20) with which one side of the holding member (40) for making the long side direction of 2) orthogonal to the long diameter direction of the long hole (7) of the turntable (1) is in contact. And an elastic protrusion (22) for fixing the holding member (40) whose one side is in contact with the first protrusion (20) is provided on the lower surface of the base (10). Characterized by,
The angle adjusting device for a display device according to claim 1. 3. Further, in the standard use state, the long side direction of the seat portion (32) of the T-shaped cross-section holding shaft (30) is defined by the long diameter of the long hole (7) of the turntable (1). The second protrusion (21) with which the other side of the holding member (40) is brought into contact with to match the direction is provided on the lower surface of the base (10). An angle adjusting device for a display device according to. 4. A groove (6) in the same direction as the slot (7), wherein the slot (7) is opened in the center of the bottom surface.
Is formed in the central portion of the lower surface of the spherical bowl-shaped portion (3) of the rotary table (1), the shaft hole (16) is opened in the central portion, and the tip portion thereof is inserted into the groove (6). A third protrusion (14) for limiting the horizontal rotation angle of the rotating base (1) is provided in the center of the upper surface of the base (10). Item 4. An angle adjusting device for a display device according to any one of items 1 to 3.