JP2008099065A - Double-shaft type monitor supporting apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable the elevation angle of a monitor to be adjusted with one action, and to simplify and downsize a hinge mechanism and a friction mechanism, in a monitor supporting apparatus for a thin liquid crystal television or the like. <P>SOLUTION: A bracket 7 is assembled to a supporting table 14 by two shafts of a fulcrum shaft 23 and a friction shaft 31 that is rotated with the fulcrum shaft 23 as the center of a rotation radius, the bracket 7 is then attached via a plate 4 to a monitor 1, and the supporting table 14 is attached to a monitor stand 2. As a result, the elevation angle of the monitor 1 can be adjusted with one action, and the hinge mechanism and a friction mechanism 30 are simplified and made compact. Therefore, the degree of freedom in design of the hinge mechanism and the friction mechanism can be increased. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a monitor support device that pivotally supports a monitor device (hereinafter referred to as “monitor”) such as a flat-screen television receiver or a personal computer, and more specifically, a support device that supports a monitor in a biaxial manner. In addition, the monitor can be controlled to a desired elevation angle with a single touch, and the monitor can be fixed at a desired elevation angle with a small hinge mechanism and friction mechanism compared to conventional models even if the weight of the monitor increases. The present invention relates to a monitor support device.

In recent years, lifestyles have diversified, and the position of viewing monitors such as flat-screen television receivers and personal computers has diversified, so various monitor stands that can be viewed by adjusting the monitor to an elevation angle that is easy for viewers to see have been proposed. Yes.
For example, Japanese Patent Laying-Open No. 2005-128471 (Patent Document 1) states that “a pivoting means capable of stably fixing an image display unit stably without hung up the hinge portion even if the tilting operation is continued using a device for many years. In order to provide equipment such as a liquid crystal television receiver with a liquid crystal display or a liquid crystal display for a desktop personal computer, the main body of the television receiver with a liquid crystal panel and an operation unit is pivotably supported with respect to a leg part. In this liquid crystal television receiver, the hinge part pivotally supporting the television receiver body is composed of a pair of left and right hinge parts, and each left and right hinge part is a stand part and a television attached to the leg part. A liquid crystal television receiver having a swing part attached to the receiver body and combining the left and right hinge parts to form an integral hinge part. There has been proposed.

However, in the case of this proposal, the center of gravity of the television receiver main body is located in front of the center of rotation of the hinge portion, so the friction torque (rotational load) that can be stopped at an arbitrary angle is the television receiver. High torque force is required according to the increase in size.
In addition, the load structure in the friction mechanism tends to be large because the load structure (friction mechanism) that supports the television receiver body is attached to the fulcrum shaft of the swing unit.
Therefore, in order to endure it, the number of parts of the friction mechanism increases and becomes complicated, and problems such as advanced management of the caulking force when assembling the parts occur.
In addition, since the structure is large, there is a case where the friction mechanism cannot be assembled in a limited space, and there is a design problem that the attachment position of the friction mechanism is not flexible.

Further, Japanese Patent Laid-Open No. 11-272196 (Patent Document 2) states that “in order to be able to adjust the inclination angle of the display surface while maintaining a required distance from the wall surface, a metal fitting is fixed to the wall surface, Attach the bracket to the side, pivot the lower end of the bracket to the projection of the bracket with a hinge, attach one end of the arm to the top of the bracket with a screw, and screw the appropriate slot in the arm to the bracket with a screw There has been proposed a flat-type display wall-hanging device that is structured so as to “stop and adjust the tilt angle of the display by loosening a screw”.
However, in the case of this wall hanging device, the display has a structure that adjusts the angle by a biaxial method of a hinge and a screw, but when setting or fixing the angle, it is necessary to loosen or tighten the screw one by one. In addition to troublesome angle adjustment, there is a drawback that if the tightening force is insufficient, the gravity on the display side wins and the forward tilt angle increases little by little, or the forward tilt is inadvertently tilted.
JP 2005-128471 A Japanese Patent Laid-Open No. 11-272196

  The object of the present invention is to provide a biaxial monitor support device that does not have the above-described drawbacks. Specifically, the elevation angle can be easily adjusted with one touch, and the monitor is enlarged. Another object of the present invention is to provide a biaxial monitor support device that can increase the degree of freedom in designing the hinge mechanism and the friction mechanism without complicating and increasing the size of the hinge mechanism and the friction mechanism.

  In order to achieve the above object, according to the first aspect of the present invention, in the biaxial monitor support device, a fulcrum shaft that rotatably supports the monitor and a fulcrum shaft that rotates about the fulcrum shaft as a center of the radius And a friction mechanism for controlling the angle to an arbitrary elevation angle.

Furthermore, in the invention described in claim 2, in the biaxial monitor support device, the two side plates formed by bending the flat plate portion to the monitor side and being bent at a right angle as viewed from the monitor side. A rear end connected by a connecting back plate, a bracket formed in a U shape in a plan view by a side plate and a connecting back plate;
In the side plate of the bracket, a fulcrum shaft hole in the hinge mechanism formed in the lower portion near the monitor,
A friction shaft mounting hole formed above a fulcrum shaft hole of the bracket, farther than a distance between the fulcrum shaft hole and the monitor, and formed on a radial line centering on the fulcrum shaft hole;
A support base formed by raising a sleeve plate at a right angle so as to be located inside each of the side plates from both sides of the bottom plate, and forming a fixing screw mounting hole for a monitor stand on the bottom plate;
In the sleeve plate, a fulcrum shaft hole on the support base formed at a position facing the fulcrum shaft hole on the bracket side,
In the sleeve plate, a long hole formed at a position facing the friction shaft mounting hole,
A fulcrum shaft that is inserted between the fulcrum shaft hole on the bracket side and the fulcrum shaft hole on the support base and rotatably mounts the bracket on the support base;
A friction mechanism that is attached via a friction shaft between the friction shaft mounting hole of the side plate of the bracket and the long hole of the sleeve plate of the previous stage support, and loads a friction torque between the sleeve plate and the side plate;
It is characterized by comprising.

Further, in the invention described in claim 3, in the biaxial monitor support device described in claim 2, the elongated hole is formed on the side plate side of the bracket, and the friction shaft mounting hole is formed on the sleeve plate side of the support base. It is characterized by being formed.
According to the present invention, the degree of freedom in designing the hinge mechanism can be increased by attaching the friction mechanism to the bracket side from the support base side.

  Furthermore, in the invention described in claim 4, in the biaxial monitor support device described in claim 2 or 3, the side plate of the bracket is assembled so as to be located outside the sleeve plate of the support base. It is characterized by this.

[Action]
Conventionally, when the elevation angle of the monitor on the monitor stand is fixed at an arbitrary position, a friction mechanism for applying a load to the fulcrum shaft portion is incorporated and adjusted appropriately as in Patent Document 1 (one-axis system). On the other hand, the present invention has a biaxial system in which the monitor is controlled to an arbitrary elevation angle with a light load by being independently provided with a fulcrum shaft portion and a friction mechanism (shaft) for applying a load. There is a feature.

The reason for this will be described with reference to FIG. 9. FIG. 9A shows a uniaxial hinge mechanism, A represents a fulcrum shaft, and the fulcrum shaft A has a friction mechanism F including a leaf spring, a thrust washer, a spring washer, and the like. Is assembled. For this reason, when the rotational force of T1 is applied, in order to make this stand still, the friction torque which can obtain the equivalent force F1 is required.
On the other hand, in the case of the biaxial hinge mechanism according to the present invention shown in FIG. 9B, since the friction mechanism F ′ is installed at a predetermined distance Xmm from the fulcrum axis A, for example, the same T1 as described above. Is applied, the force F1 that stops the fulcrum shaft A is the friction torque F2 × X.
That is, the friction torque F2 of the friction mechanism in FIG.
F2 = F1 ÷ X
It becomes.

Accordingly, the longer the distance between the fulcrum shaft A and the friction mechanism F ′, the smaller the friction torque of the friction mechanism F ′.
In addition, in the bracket for attaching the monitor and the support base for receiving the bracket in a tiltable manner, the attachment hole for incorporating the friction mechanism in one of the bracket or the support base is an arc-shaped long hole. Since the penetrating friction shaft slides while sandwiching the plate material of the bracket or the support base, the bracket or the support base can be tilted about the fulcrum shaft.

The effects of the invention described in claims 1 to 3 are as follows.
The biaxial monitor support device of the present invention is
1. By removing the load structure (friction mechanism) from the fulcrum shaft as the hinge mechanism, the structure of the fulcrum shaft portion can be simplified and miniaturized.
2. By separating the friction mechanism from the fulcrum shaft of the hinge mechanism and mounting it away from the fulcrum shaft in the radial direction, the friction torque required for the friction mechanism is reduced. Therefore, the structure and size of the friction mechanism can be simplified.
3. Since the fulcrum shaft and the friction mechanism as the hinge mechanism can be simplified and reduced in size, the arrangement position of the hinge mechanism and the friction mechanism is increased, and a position with high design efficiency can be determined.
4). Since the distance between the fulcrum position of the hinge mechanism and the load position (friction torque load position) can be generated, a load equivalent to the conventional load can be generated with a small load, and the components can be rationalized.
5. The angle adjustment load of the monitor is handled by the friction mechanism, so simply tilting the monitor by hand (with one touch) determines the angle of elevation in an analog fashion, and it is necessary to screw it in as in the case of Patent Document 2. Absent.
6). When the monitor is tilted forward by moving the friction mechanism (biaxial side) rearward from the fulcrum shaft position (uniaxial side) of the hinge mechanism, the biaxial side approaches the uniaxial vertical line when the monitor is tilted forward. Will be better.

Embodiments corresponding to the inventions described in claims 1 to 4 will be described below.
FIG. 1 is an explanatory view when a monitor is assembled on a monitor stand by the support device according to the present invention, FIG. 1 is a front view, FIG. 2 is a side view, and FIG. 3 is a view when the support device portion is viewed from the lateral direction. FIG. 4 is a perspective view of the support device, FIGS. 5A to 5D are explanatory diagrams of brackets constituting the support device, and FIGS. 6A to 6D are views of the support base constituting the support device. FIG. 7 is a sectional view taken along line AA ′ in FIG. 3, and FIG. 8 is an exploded explanatory view of components of the friction mechanism.

First, a basic configuration of a monitor support device according to the present invention includes a support base fixed to a monitor stand, a bracket fixed to the back of the monitor, and a hinge pivotally supporting the support base and the bracket. It consists of a mechanism and a friction mechanism that arbitrarily controls the elevation angle of the monitor with one touch.
1 to 3, reference numeral 1 is a monitor for a thin television, 2 is a monitor stand that supports the monitor 1 in a tiltable manner as shown by a dotted line in FIG. 2, and 3 is a monitor stand 2 1 is a support device (the present invention) to which 1 is attached, and this configuration will be described in detail with reference to FIGS.

4 to 8, reference numeral 4 denotes a flat plate which is screwed so as to be in contact with the back surface of the monitor 1, and the flat plate 4 is provided with mounting holes 5 at two places on the left and right sides. As shown in FIG. 2, the screw 1 is attached to the back surface of the monitor 1.
7 is a bracket attached to the back surface 4a of the flat plate 4. The bracket 7 includes flanges 8 and 8a with attachment holes 11 for the flat plate 4, and flanges 8 and 8 as shown in FIGS. A side plate 9, 9 a protruding rearward from the right side 8 a, and a connecting back plate 10 that forms a bracket 7 in a U shape in plan view by connecting the rear ends of the side plates 9, 9 a.

  5 (c) and 5 (d), reference numerals 12 and 12a denote fulcrum shaft holes for assembling the hinge mechanism formed on the side plates 9 and 9a of the bracket 7 close to the flanges 8 and 8a side. Similarly, in the side plates 9 and 9 a of the bracket 7, the friction is formed above the fulcrum shaft holes 12 and 12 a and shifted rearward (to the connecting back plate 10 side) from the fulcrum shaft holes 12 and 12 a. It is a shaft mounting hole.

  As shown in FIG. 3, reference numeral 14 denotes a support base that is attached to a horizontal mounting portion 2a formed at the upper end of the monitor stand 2, and the support base 14 is shown in FIGS. 6 (a) to 6 (d). As shown in FIG. 2, a mounting hole 16 for the monitor stand 2 is formed in the center of the bottom plate 15, both sides are raised at right angles to form sleeve plates 17 and 17a, and the rear end of the bottom plate 15 is raised at right angles. A back plate 18 is formed, and on both upper sides of the back plate 18, screw holes 19 a for connecting and reinforcing the back plate 18 with screws on side plates 17, 17 a side bends 19 are formed. As shown in FIG. 6B, the plan view has a U shape, and when the support base 14 and the bracket 7 are combined, the sleeve plates 17 and 17a and the side plates 9 and 9a of the bracket 7 are respectively 2 on the friction mechanism 30 side Spacer 36, 36a (see FIGS. 7 and 8) is minute gap is sandwiched are formed.

20 and 20a are lower portions of the sleeve plates 17 and 17a, and are fulcrum shaft holes as hinge mechanisms formed at positions close to the front end, and positions corresponding to the hinge shaft holes 12 and 12a on the bracket 7 side. Is formed.
21 and 21a are elongate holes which are located on the upper side of the side plates 17 and 17a and located behind the fulcrum shaft holes 20 and 20a on the arc line centering on the fulcrum shaft holes 20 and 20a. As shown in FIGS. 7 and 8, the mechanism 30 is attached to the friction shaft attachment holes 13 and 13 a on the side plates 9 and 9 a side of the bracket 7 via the long holes 21 and 21 a via the friction shaft 31.

Here, the friction mechanism 30 will be described. As shown in FIGS. 7 and 8, the configuration is such that the friction shaft 31 is attached to the washer 32, the spring washer 33, and the friction from the inside of the sleeve plates 17 and 17 a of the support base 14. Washer 34, tilt washer 35 with long hole 35a, long holes 21 and 21a in sleeve plates 17 and 17a of support base 14, friction long hole 36b, spacer 36 with fulcrum shaft hole 36c, spacer 36a with friction shaft hole 36d The side plates 9 and 9a of the bracket 7 are assembled in such a manner that the shaft holes 13 and 13a for friction assembly are passed through in this order, and a constant torque is generated by tightening the nut 37. However, the configuration of the friction mechanism 30 is merely an example, and other known friction mechanisms may be used.
In FIG. 7, reference numeral 22 denotes a support base fixing screw for fixing the support base 14 by screwing the support base 14 into the upper end horizontal portion 2 a of the monitor stand 2 through the mounting hole 16.

  Next, a procedure for assembling the bracket 7 and the support base 14 will be described. First, the fulcrum shaft 23 as a hinge mechanism is passed through the fulcrum shaft holes 20 and 20a from the inside of the shaft plates 17 and 17a of the support base 14, and from the fulcrum shaft holes 36c of the spacers 36 and 36a to the side plates 9 and 9a of the bracket 7. The tip is passed through the fulcrum shaft holes 12 and 12 and the tip is crimped 23a.

After the bracket 7 and the support base 14 are combined by the above process, the flat plate 4 is screwed to the flanges 8 and 8a of the bracket 7 through the screw holes 11 as shown in FIG. 3, FIG. 4, and FIG. The biaxial support device is completed. The spacers 36 and 36a sandwiched between the sleeve plates 17 and 17a of the support base 14 and the side plates 9 and 9a of the bracket 7 are resin flat plates rich in lubricity. 9a) and the support base 14 (sleeve plates 17 and 17a) are smoothly slid.
The biaxial support device configured as described above is attached to the back surface of the monitor 1 through the attachment screws 6 in the four attachment holes 5 provided in the flat plate 4, and as shown in FIG. By passing a mounting screw 22 through a mounting hole 16 provided in the bottom plate 15 and screwing this mounting screw 22 into a mounting screw hole 2b on the monitor stand 2 side, the elevation angle of the monitor 1 is determined by two axes of a fulcrum shaft 23 and a friction shaft 31. Installation of the optional biaxial monitor support device is completed.

Comparing the effect of the conventional uniaxial system in which the friction mechanism 30 is directly assembled to the fulcrum shaft and the biaxial system of the present invention, in the case of the uniaxial system in a 37-inch thin TV monitor, the friction mechanism 30 However, according to the two-axis system of the present invention, the friction torque of the present invention can be put to practical use only by generating a small friction torque of 45 kgf / cm.
Therefore, the hinge including the friction mechanism can be miniaturized, the production cost can be reduced, and the degree of freedom in product design is increased by the miniaturization.
In order to attach the friction mechanism 30, the side plates 9, 9a may be positioned inside the sleeve plates 17, 17a (Claim 4), and the friction shaft attachment holes 13, 13a and the long holes 21, 21a may be replaced on the side plate 9, 9a side and the sleeve plate 17, 17a side of the bracket 7 (Claim 3).

1. 1. Support device that enables adjustment of the elevation angle of a monitor (display) of a thin television. 2. Support device that enables adjustment of elevation angle of personal computer monitor. Support device that enables elevation angle adjustment of other thin display devices

Front view of a flat-screen LCD TV with a monitor stand Illustration of monitor elevation angle adjustment example Illustration of monitor support device Perspective view of monitor support device in assembled state A bracket is shown, (a) is a front view, (b) is a plan view, (c) is a left side view, and (d) is a right side view. A support stand is shown, (a) is a front view, (b) is a plan view, (c) is a left side view, and (d) is a right side view. AA 'line sectional view Exploded perspective view of friction mechanism It is explanatory drawing of the contrast of the friction torque of a uniaxial friction hinge mechanism and the biaxial hinge mechanism which is this invention, (a) is a uniaxial friction hinge mechanism, (b) is a biaxial hinge mechanism.

Explanation of symbols

Reference Signs List 1 monitor 2 monitor stand 7 bracket 14 support base 23 fulcrum shaft 30 friction mechanism

Claims (4)

  A biaxial monitor support device comprising: a fulcrum shaft that rotatably supports the monitor; and a friction mechanism that rotates about the fulcrum shaft as a center of radius and controls the monitor to an arbitrary elevation angle. The flat plate part can be attached to the monitor side, and the rear ends of the two side plates formed by bending back at right angles when viewed from the monitor side are connected by a connecting back plate, and the plan view is obtained by the side plate and the connecting back plate. A bracket formed in a U-shape;
In the side plate of the bracket, a fulcrum shaft hole in the hinge mechanism formed in the lower portion near the monitor,
A friction shaft mounting hole formed above a fulcrum shaft hole of the bracket, farther than a distance between the fulcrum shaft hole and the monitor, and formed on a radial line centering on the fulcrum shaft hole;
A support base formed by raising a sleeve plate at a right angle so as to be located inside each of the side plates from both sides of the bottom plate, and forming a fixing screw mounting hole for a monitor stand on the bottom plate;
In the sleeve plate, a fulcrum shaft hole on the support base formed at a position facing the fulcrum shaft hole on the bracket side,
In the sleeve plate, a long hole formed at a position facing the friction shaft mounting hole,
A fulcrum shaft that is inserted between the fulcrum shaft hole on the bracket side and the fulcrum shaft hole on the support base and rotatably mounts the bracket on the support base;
A friction mechanism that is mounted between the friction shaft mounting hole of the side plate of the bracket and the long hole of the sleeve plate of the support base via a friction shaft, and loads a friction torque between the sleeve plate and the side plate;
A biaxial monitor support device.   The biaxial monitor support device according to claim 2, wherein the long hole is formed on the side plate side of the bracket, and the friction shaft mounting hole is formed on the sleeve plate side of the support base.   The biaxial monitor support device according to claim 2 or 3, wherein the side plate of the bracket is assembled so as to be positioned outside the sleeve plate of the support base.

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