JP2590310Y2 - Hinge device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hinge device which can be used for adjusting the angle of a display device such as a laptop personal computer or a word processor or the angle of a rotating lid.

[0002]

2. Description of the Related Art Hitherto, various hinge devices have been proposed for holding an opening / closing body such as a lid or a panel at an arbitrary position. An example of this type of hinge device is disclosed in, for example,
No. 8, JP-A-2-35214, JP-A-63-
As disclosed in Japanese Patent No. 5174 or the like, there is a type in which a spring and a shaft are combined and held at an arbitrary position by using the frictional force.

On the other hand, as shown in FIG.
1. Washer 32, elastic body 33, shaft holder 34, friction body 3
5, a shaft fixed body 36, and the friction body 35 is
There is also proposed a structure in which the shaft 31 is clamped and fixed between the stepped portion 37 and the shaft holder 34 and the frictional force generated by the pressing is utilized.

[0004]

However, in the above-mentioned hinge device, after assembly, it was not possible to adjust the frictional force according to the weight of the opening / closing body such as a lid and a panel.

On the other hand, in the hinge device shown in FIG. 8, when the frictional body 34 is worn and the frictional force is reduced, or when a suitable frictional force is obtained for a long period of time, the lubricant used to eliminate the friction noise is removed. At times, it was not possible to correct the frictional force or replenish the lubricant.

Further, when a high pressing force is applied, the friction member 34
Was deformed radially outward, so that a high frictional force could not be obtained.

Further, when the shaft body 31 is inserted into and fixed to the hole provided in the shaft fixed body 36 without caulking the shaft body 31 and the shaft fixed body 36, a clearance is inevitably generated.
There is a problem that the opening / closing body fixed to the shaft holding body 34 or the shaft fixing body 36 fluctuates.

This invention has been made in order to solve the above-mentioned problems, and it has become possible to adjust the frictional force even after assembling the hinge device, to withstand a high pressing force and to obtain a high frictional force. It is another object of the present invention to provide a hinge device which can be assembled at a low cost and can be easily assembled by eliminating fluctuation of an opening / closing body.

[0009]

The hinge device according to the present invention comprises:
At one end, a stepped portion 1a projecting in the circumferential direction of the shaft body 1 is formed, and at the other end, a screw is formed, and at the other end 1b, a convex tapered surface engaging with the shaft fixing body 8 is formed. Is formed, a shaft holder 2 in which the shaft body 1 is rotatably penetrated, and a concave tapered surface 2a is formed in the through hole, and a shaft holder 2 that rotates with respect to the shaft holder 2. A friction body having a fixed direction and movably mounted in the axial direction, and having a convex tapered surface 3b corresponding to the tapered shape of the friction surface of the shaft holder 2 formed at a tip end in the shaft holder 2 direction. 3
Then, the friction body 3 is pressed in the axial direction, and the concave tapered surface 2a of the shaft holding body 2 is brought into contact with the convex tapered surface 3b to generate frictional force and formed on the shaft body 1. A pressing body 7 formed with a screw to be screwed into the screw; a shaft fixed body 8 formed with an engaging hole 8a into which a tip 1b of the shaft body 1 having a convex tapered surface is formed. Is provided.

[0010]

According to the present invention, a frictional force is generated when one end of the shaft body, the shaft holding body and the friction body are pressed by the pressing body. The other end of the shaft is fixed to the shaft fixing body. The frictional force can be adjusted by moving the pressing body in the axial direction.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1 to 4 show a first embodiment of the present invention, in which a shaft 1 has a stepped one end 1a, penetrates a shaft holder 2 rotatably, and has an axial direction at a stepped portion 1a. Have been deterred. When one end 1 a of the stepped shaft body 1, the shaft holder 2 and the friction body 3 are pressed by the pressing body 7, a frictional force is generated. The other end 1b of the shaft is fixed to a shaft fixing body 8 having an oval-shaped and tapered surface-shaped hole 8a.

As shown in an exploded perspective view of FIG. 3, the shaft body 1 penetrates the friction body 3 and a pin 4 is inserted into a round hole 1c provided in the shaft body 1 and an elongated hole 3a provided in the friction body 3. The friction body 3 is attached to the shaft body 1 by being inserted. As a result, the rotational directions of the friction body 3 and the shaft body 1 are fixed, and both are configured to be movable only in the axial direction within the range of the elongated hole 3a. Then, the shaft body 1 penetrates through the washer 5 and the elastic body 6 and is suppressed by the pressing body 7. An oval hole 5a is provided in the washer 5 so that it can move in the axial direction but does not rotate. The pressing force is adjusted by moving the pressing body 7 to the left in the axial direction.

The friction surface of the shaft holder 2 that contacts the friction member 3 is formed as a concave tapered surface 2a, and the tip of the friction member 3 in the direction of the shaft holder 2 is tapered. It is formed on a convex tapered surface 3b corresponding to the shape.

On the other hand, the stepped portion 1a of the shaft 1 and the shaft holder 2
Are pressed against each other and the shaft holder 2 and the friction body 3
Is pressed against the tapered surface to generate frictional force. This frictional force is proportionally and simultaneously adjusted by adjusting the pressing force. For example, if a male screw is cut at the tip of the shaft body 1 and the pressing body 7 is configured as a nut, the pressing force is specially moved by moving the pressing body 7 (nut) to the left and right of the shaft body 1. Easy adjustment without the need for a special jig. That is, the frictional force can be easily adjusted.

As described above, the shaft holder 2 has the concave tapered surface 2a, and the friction member 3 has the convex tapered surface 3a.
b is formed. Therefore, when the pressing body 7 is moved to the left in the drawing, the friction body 3 comes into contact with the shaft holding body 2, and when the pressing body 7 is further moved to the left to increase the pressing force, the friction body 3 is pressed against the shaft holding body 2. Then, it enters the inside of the concave tapered surface 2a formed in the shaft holder 2, withstands a large pressing force, and obtains a high frictional force. Shaft holder 2, respectively closing body shaft fixing member 8, the non-moving object, or by fixing to the contrary, it is the child holding the closing member at any angle.

In the above-described embodiment, the washer 5 is provided with the oval hole 5a and the rotation direction is fixed. However, as in the second embodiment shown in FIG. The combination and the rotation direction may be fixed. Since the other components in FIG. 4 are the same as those in the first embodiment, the same portions are denoted by the same reference numerals and description thereof will be omitted.

FIG. 5 is a side view of the shaft body 1 and a cross-sectional view of the shaft fixing body 8. The shaft body 1 has a tapered surface at the tip 1b. As shown in the figure, the tip dimension of the taper is a, the root dimension is b,
Assuming that a <c <b when the width dimension of the hole of the shaft fixing body 8 is c, the shaft fixing body 8 is engaged and fixed in the middle of the tapered surface of the shaft body 1 as shown in FIG. That is, the clearance between the tapered surface of the shaft body 1 and the two widths of the c-shaped hole 8a of the shaft fixing body 8 becomes zero, and the shaft holding body 2 or the shaft fixing body 8
The wobble of the opening / closing body attached to is eliminated.

Next, the hinge according to the present invention is used to open and cover the keyboard by rotating about the horizontal axis, and to rotatably mount a lid with a display panel for exposing and hiding a liquid crystal display (LCD). FIG. 7 shows a laptop electronic device to which the device is applied. (A) is a top view showing a state where the lid with the display panel is closed, (b) is a front view showing a state where the lid with the display panel is opened, and (c) is a side view showing the same.

The device main body 20 includes a keyboard 21 and necessary electronic devices therein. Keyboard 2
The hinge device according to the present invention is provided on both left and right sides (portion A in the figure) when 1 is turned to the user side.

In this hinge device, the cover 22 with the display panel is inserted into the screw holes 2b and 2c in the shaft holder 2 shown in FIG. 2, and the equipment body 20 is inserted into the screw holes 8b and 8c in the shaft holder 8 respectively. It is attached by being screwed and fixed. It goes without saying that the lid 22 with the display panel and the device body 20 may be mounted in reverse order.

[0021]

As described above, according to the present invention, the friction body 3 is formed with a convex tapered surface 3b, which is pressed against the concave tapered surface 2a formed on the shaft holder 2. By forming the tapered surface in this manner, the friction surface can be widened, a large frictional force can be obtained, and even if the friction body 3 is strongly pressed in the direction of the shaft holder 2, the tapered surface can be formed. Friction body 3 pressed by 2a
Can be prevented from radially deforming outside, and the friction body 3 can be prevented from cracking. In addition, since the shaft body 1 and the pressing body 7 are screwed together with a screw, the pressing body 7 is moved. The frictional force can be easily adjusted, and the tapered end 1b of the shaft body 1 is fixedly engaged with the engaging hole 8a of the shaft fixing body 8, so that the shaft holding body 2 or the shaft fixing An excellent effect that the opening / closing body attached to the body 8 does not wobble can be obtained.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is an exploded perspective view of the same.

FIG. 4 is an exploded perspective view showing another embodiment of the present invention.

FIG. 5 is a sectional view showing a dimensional relationship of the present invention.

FIG. 6 is a sectional view showing a dimensional relationship of the present invention.

7A and 7B show a laptop-type electronic device to which the hinge device of the present invention is applied, wherein FIG. 7A is a top view showing a state in which a lid with a display panel is closed, and FIG. 7B is a state in which the lid with a display panel is opened. And (c) is a side view of the same.

FIG. 8 is a sectional view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Shaft 2 Shaft holder 3 Friction body 4 Pin 5 Washer 6 Elastic body 7 Pressing body 8 Shaft fixed body 31 Shaft body 32 Washer 33 Elastic body 34 Shaft holder 35 Friction body 36 Shaft fixed body

Claims (1)

(57) [Scope of request for utility model registration] 1. A convex taper which is formed at one end with a step which protrudes in the circumferential direction of the shaft body, has a screw formed at the other end, and is engaged with the shaft fixing body at the end of the other end. A shaft body having a surface formed thereon, a shaft body rotatably penetrating the shaft body, and a shaft holding body having a concave tapered surface formed in the through hole; and a rotation direction fixed to the shaft holding body. A friction member having a convex tapered surface corresponding to the tapered shape of the friction surface of the shaft holder formed at a tip end in the shaft holder direction so as to be movable in the axial direction; Pressing body in which a screw is formed to generate frictional force by pressing a convex tapered surface against a concave tapered surface of the shaft holding member, and screwing to a screw formed in the shaft body. And an engagement hole into which a tip of the shaft body having a convex tapered surface is engaged and fixed. A hinge device comprising a formed shaft fixed body.