JP3258451B2 - Tilt mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tilt mechanism provided between a main body and a display panel in a personal computer, a liquid crystal television, or the like so that the display panel can be folded and stored so as to overlap the main body.

[0002]

2. Description of the Related Art Conventionally, personal computers, liquid crystal televisions, and the like are commercially available in a configuration that is convenient to carry, with a display panel being superimposed on a main body so as to be folded and stored. In a personal computer, a liquid crystal television, or the like that allows the display panel to be folded and stored with respect to the main body, a function of stopping the display plate rotatably mounted on the main body at a position where the display is easily viewable is required. In view of this demand, conventionally, there has been a configuration in which a display plate abuts on a protrusion that is provided at an appropriate position in advance on the main body or the like to restrict the rotation thereof. Further, as a user such as the personal computer or the liquid crystal television can freely set the stop position of the display plate, a coil spring is attached to the shaft, and when the display plate is raised, the shaft winds around the coil spring and compresses it. In some cases, the display plate is stopped at a predetermined position by the compression reaction force.

[0003]

However, in the case of the above-described tilt mechanism, the former structure in which the rotation of the display panel is restricted by the projection cannot cope with the difference in the viewing angle of the display panel by the user. I was dissatisfied. On the other hand, when the display panel is stopped by the force of the coil spring, there is a problem that the display becomes difficult to see due to the operation of the keyboard or the like on the main body side, and a large size is required to guarantee a stable rotation of the display panel. It is necessary to use a spring, and there is a concern about an increase in the size of the device.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problem, and it is possible to improve the stability of the relative rotation of the display panel with respect to the main body and to accurately and stably support the display panel at a predetermined stop position. It is an object of the present invention to provide a tilt mechanism that can be used.

[0005]

According to the first aspect of the present invention, a tilt mechanism is provided between a main body and a display panel in a personal computer, a liquid crystal television, or the like so that the display panel can be folded and stored so as to overlap the main body. A fixed bracket provided on the main body, a movable shaft rotatably supported by the fixed bracket, a washer provided on the movable shaft so as to be integrally rotatable with the movable shaft, a spacer fitted with and fixed to the fixing bracket or body between said fixed bracket and the washer to the movable shaft, the accessibility
The fixed shaft, washer, and spacer
Fit between each other and generate frictional force against each other
A resin ring-shaped bush that comes into surface contact
The provision of this is a means for solving the above problem.

[0006]

[0007] In the tilt mechanism according to the second aspect , the first aspect.
A tilt mechanism according to it, the fixed bracket or the movable shaft body rotatably supported by, and movable shaft outer circumferential surface before by comprising press-fitting the bearing to produce a friction force to the Symbol of This was the solution to the problem.

[0008]

SUMMARY OF] According to a tilt mechanism of claim 1, a fixing bracket attached to the main body side such as a personal computer or a liquid crystal television, for pivotally display panel to the movable shaft. When the movable shaft rotates, the washer rotates integrally with the rotating shaft, and a frictional force is generated between the movable shaft and the bush in contact with the washer. In this case, blanking
Brackets and washers that contact the bush and the bush
Between the bush and the bush.
Friction between the spacer and the spacer
As a result, the resistance to the rotation of the movable shaft increases.
In addition, the supporting portion for external force such as rotating force acting on the display
The stress to support the external force
It occurs dispersedly throughout the tilt mechanism.

[0009]

According to the tilt mechanism of the second aspect, since the inner surface of the bearing and the outer peripheral surface of the movable shaft are tightly fitted to each other, an appropriate rotation torque is always generated.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Prior to the description of the embodiments of the present invention, first, the present invention will be described.
An example related to the description will be described with reference to FIGS.
You. In the figure, reference numeral 1 denotes a tilt mechanism of the present embodiment , 2 denotes a main body of a personal computer to which the tilt mechanism 1 is applied, 3 denotes a display panel of the personal computer, 4 denotes a fixed bracket, 5 denotes a movable shaft, 6 denotes a washer, and 7 denotes a washer. Bush.

The tilt mechanism 1 of this embodiment is provided between the main body 2 and the display panel 3, and can be folded and stored so that the display panel 3 overlaps the main body 2. The tilt mechanism 1
Are a fixed bracket 4 fixed to the main body 2, a movable shaft 5 rotatably supported by the fixed bracket 4, and a washer 6 provided on the movable shaft 5 so as to be integrally rotatable with the movable shaft 5.
And the fixed bracket 4 and the washer 6 on the movable shaft 5.
And a resin ring-shaped bush 7 which is in surface contact with the fixed bracket 4 and the washer 6 so as to generate sufficient frictional force.
The fixing bracket 4, by being fixed to the outer surface of the body 2, the flange 8 for supporting the movable shaft 5 rotatably, and projecting perpendicularly from the outer surface of the body 2. The fixed bracket 4 has a bearing B for rotatably supporting the movable shaft 5 at a position separated from the flange 8.
Are fixed parallel to the flange 8. Bearing B
Is in contact with the outer surface of the display panel 3 in a state where the side surface of the display panel 3 is in surface contact. The fixed bracket 4 rotatably supports the movable shaft 5 in a predetermined direction by the flange 8 and the bearing B.

The movable shaft 5 is a rod-shaped member having a length of a few centimeters and a diameter of several millimeters and having a circular cross section. The movable shaft 5 extends along the outer surface of the main body 2 while being rotatably inserted into the flange 8. It is arranged. The tip of one side of the movable shaft 5 is
The display panel 3 is penetrated and fixed inside. The end of the movable shaft 5 opposite to the display plate 3 protrudes outside the display plate 3. On the other hand, on the other side of the movable shaft 5,
The movable shaft 5 of the flange 8 provided on the fixed bracket 4
A stop flange 9 of about twice the diameter of the hole to insert
Is provided. The stop flange 9 is located between the flange 8 and the bearing B.

The washer 6 is a metal ring-shaped member, and is fixed to the tip of the end of the movable shaft 5 protruding outside the display plate 3. The washer 6 and the movable shaft 5 are provided with a protrusion (not shown) provided at the tip of the movable shaft 5 along the axial direction.
And an engaging recess (not shown) provided on the inner peripheral side of the washer 6.
Are engaged with each other so that they are integrally rotated. The washer 6 and the movable shaft 5 are fixed
Other than the engagement between the protrusion and the recess, an adhesive, welding, brazing, or the like may be used. In addition, if the washer 6 is a disc spring, the force for holding the bush 7 between the washer 6 and the fixing bracket 4 can be enhanced.

The bush 7 is loosely fitted to the movable shaft 5 between the fixed bracket 4 and the washer 6, and is in surface contact with each of the fixed bracket 4 and the washer 6. Also,
The bush 7 includes the fixing bracket 4 and the stop flange 9.
Is loosely fitted to the movable shaft 5 in a state of being in surface contact with the fixed bracket 4 and the stopper flange 9.

In the tilt mechanism 1, since a compressive force acts between the fixed bracket 4 and the washer 6, the bush 7 is in surface contact with both the fixed bracket 4 and the washer 6 in a pressure-contact state. The bush 7 interposed between the fixed bracket 4 and the stop flange 9 is also in surface contact with each of the fixed bracket 4 and the stop flange 9 in a press-contact state. Further, the retaining flange 9 is in surface contact with the bearing B. Further, since the movable shaft 5 is press-fitted into the bearing B, the rotation torque between the inner peripheral surface of the bearing B and the outer peripheral surface of the movable shaft 5 is always stable.

Hereinafter, the above operation and effect will be described.
When the display plate 3 is opened and closed with the main body 2 placed on a desk or the like, the tilt mechanism 1 rotates about the axis of the movable shaft 5 together with the movable shaft 5. Movable shaft 5
Is fixed to the display plate 3, so that when the display plate 3 rotates, it rotates integrally with the display plate 3. When the movable shaft 5 rotates, the washer 6 also rotates integrally with the movable shaft 5. At this time, since the washer 6 is in surface contact with the bush 7,
Friction occurs between the bush 7 and the washer 6 and between the bush 7 and the fixed bracket 4. On the other hand, also between the fixed bracket 4 and the stop flange 9, when the movable shaft 5 rotates, a frictional force is generated between the stop flange 9 and the bush 7 and between the bush 7 and the fixed bracket 4. In addition, since the bearing B is tightly fitted to the movable shaft 5, an appropriate rotation torque is constantly generated.

Therefore, when the movable shaft 5 rotates, the bush 7 always generates a frictional force between the flange 8 of the fixed bracket 4 and at least one of the washers 6, and the bearing B also has the display plate 3 and the stop flange 9 A frictional force is always generated between the main body 2 and the display panel 3.
And the display panel 3 can be stably stopped at an arbitrary position in the rotation range. Further, unlike the conventional structure, the tilt mechanism 1 can accurately stop the display panel 3 at a target position without a fear of returning at the time of the stop. Furthermore, tilt mechanism 1
Since the bearing B plays both functions of supporting the movable shaft 5 and generating a rotating torque, the overall size can be reduced.

On the other hand, when the display panel 3 is rotated, the force for rotating the display panel 3 tends to be unevenly distributed in the length direction of the movable shaft 5, so that the force between the movable shaft 5 and the fixed bracket 4 is not sufficient. Although the support stress tends to be partially concentrated due to the uneven distribution and tends to be unstable, even in such a case, the tilt mechanism 1 according to the present embodiment is a member that generates a frictional force by surface contact with each other. , The stress with respect to the turning power is dispersed to prevent the concentration of stress, and it is possible to always maintain the stability of the rotation of the display panel 3, and of course, to prevent the damage and the like due to the fatigue of the member. This extends the life.

The fixing bracket 4, the washer 6, the bearing B, the stop flange 9, and the surface of the bush 7 are:
If at least one pair of surfaces is a source of frictional force, the surface forming the other pair may be a sliding surface with little friction.
In this case, the tilt mechanism 1 stably rotates while sliding between at least one of the pair of surfaces including the sliding surface and a surface facing the tilt mechanism, thereby guaranteeing stability during the rotation. Also, between the fixed bracket 4 and the washer 6, between the retaining flange 9 and the fixed bracket 4, between the bearing B and the display plate 3,
A plurality of the bushes 7 may be provided between the bearing B and the retaining flange.

Next, a description will be given of an embodiment of the present invention with reference to FIG. In the figure, reference numeral 10 denotes a tilt mechanism of the present embodiment. The tilt mechanism 10, the difference between the tilt mechanism 1 according to prior clean, widen the distance between the fixed bracket 4 and the washer 6, and fixed to the fixing bracket 4 between the stationary bracket 4 and the washer 6 Two flange-shaped spacers 11 are fitted into the movable shaft 5 at positions where the distance between the fixed bracket 4 and the washer 6 is divided at substantially equal intervals,
The bush 7 is fitted between the two spacers 11 and between the spacer 11 and the fixing bracket 4 and between the spacer 11 and the washer 6. In the figure,
The same components as those in FIG. 1 are denoted by the same reference numerals, and description thereof will be simplified.

The tilt mechanism 10 according to the present embodiment
A total of four bushes 7 are fitted. Each bush 7
Are interposed in a state of being in surface contact with the adjacent stop flange 9, fixing bracket 4, spacer 11, and washer 6, respectively. The number of the spacers 11 may be other than two. When the number of spacers 11 is other than two, the bush 7 is brought into contact with both front and back surfaces of each spacer 11 regardless of the number of spacers 11.
Further, the tilt mechanism 11 of the present embodiment includes the fixing bracket 4, the washer 6, the spacer 11
Is not in contact with the fixing bracket 4, the washer 6, and the spacer 11 because a gap is allowed between them.
It is possible to adjust the axial dimension of the tilt mechanism by adjusting the gap.

According to the tilt mechanism 10, the total contact area between the members increases, and the maximum value of the frictional force that can be generated when the movable shaft 5 rotates increases. Even when it is necessary to prevent the rotation of the plate 3, especially when the display plate 3 is stopped at a predetermined position, the change in the frictional force is small and the stability of the rotation is guaranteed, and the display plate 3 is not required. Can be stopped exactly at the position. In addition, the stability of the rotation and stop of the display panel 3 is guaranteed. In addition, since the tilt mechanism 10 has a larger portion supporting the load acting between the main body 2 and the display panel 3 than the tilt mechanism 1, the rotation stability of the display panel 3 is further improved.

The bush 7 may be formed of a resin having high elasticity. In this case, the frictional force between the bush 7 and the member that comes into contact with the bush 7 is further improved, and the effect of dispersing the stress with respect to the external force for rotating the display panel 3 is further improved, and the rotation of the display panel 3 is improved. Motion stability can be further improved.

[0025]

As described above, according to the tilt mechanism of the first aspect, in a personal computer, a liquid crystal television, or the like, the tilt plate is provided between the main body and the display panel so that the display panel is overlapped with the main body. A tilt mechanism capable of being folded and stored, comprising: a fixed bracket provided on the main body; a movable shaft rotatably supported by the fixed bracket; and a movable shaft provided on the movable shaft so as to be integrally rotatable with the movable shaft. and washers, fitted between the fixing bracket and the washer to the movable shaft and fixed to the fixing bracket or body spacer
And the fixed bracket, washer, and space on the movable shaft.
With each other, and for each
A resin ring-shaped block that is brought into surface contact to generate frictional force
And the bush.
Between the mounting bracket and the bush and washer.
There is also friction between the bush and the spacer
The stability of the rotation of the display board relative to the main body and the display board
The accuracy and stability of stopping at the predetermined stop position are improved.
Further, according to the tilt mechanism of the present invention, the bush is fixed.
For fixed bracket, washer or spacer
Except for those that come into surface contact to generate sufficient frictional force,
Allow clearance for fixing brackets, washers and spacers
The tilt mechanism can be set at any position
The degree of freedom is improved. In addition, an external force for rotating the display panel
Since the supporting part of the
Movable shaft is more stable even when external force is unevenly distributed
Can be supported.

[0026]

According to the tilt mechanism according to claim 2, wherein a tilting mechanism according to claim 1 Symbol mounting, the movable shaft rotatably supported to said fixed bracket or body, and the outer peripheral surface of the movable shaft because characterized by including the press-fit the bearing to produce a friction force, of course have the effect of 1 Symbol placing the invention is achieved, since in the state tightly fitted bearing and the movable shaft, the fixed Regardless of the generation of frictional force between the bracket and the washer or spacer, an appropriate rotation torque is always generated, the relative rotation between the movable shaft and the fixed bracket is stabilized, and the bearing supports the movable shaft. And the rotation torque is generated, so that the tilt mechanism can be downsized as a whole.

[Brief description of the drawings]

FIG. 1 is an overall side view showing an example according to the present invention .

FIG. 2 is an overall side view showing an embodiment of the present invention.

FIG. 3 shows an electronic device to which the tilt mechanism of FIG . 1 is applied.
It is an overall view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tilt mechanism 2 Main body 3 Display plate 4 Fixed bracket 5 Movable shaft 6 Washer 7 Bush 10 Tilt mechanism 11 Spacer B Bearing

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) E05D 11/08 E05D 11/10 F16C 11/10 G09F 9/00 H05K 5/03

Claims (2)

(57) [Claims] 1. A tilting mechanism provided between a main body and a display panel in a personal computer, a liquid crystal television, or the like so that the display panel can be folded and stored so as to overlap the main body. A movable shaft rotatably supported on the fixed bracket, a washer provided on the movable shaft so as to be rotatable integrally with the movable shaft, and a fit between the fixed bracket and the washer on the movable shaft. surface as it is, and a spacer fixed to the fixing bracket or body, fitted between each <br/> the fixed bracket and the washer and the spacer to the movable shaft, and produces a friction force with respect to each Contacted resin ring-shaped bush
And a tilting mechanism. 2. A tilting mechanism according to claim 1 Symbol mounting, the movable shaft rotatably supported to said fixed bracket or body, and was pressed to produce a friction force on the outer circumferential surface of the movable shaft A tilt mechanism comprising a bearing.