KR200184244Y1 - Disk type friction hinge device - Google Patents

Abstract

The present invention provides a disk-type friction hinge device for additionally installing a fixing washer between the bracket and the connecting portion of the other fixing member, and to install the anti-rotation clip washer on the disk spring side. To this end, the present invention is inserted through the bracket and the hole to which the fixed side member of the target device is fixedly coupled in the state where the cam washer and the first washer are fitted to the connection portion of the shaft to which the rotating side member of the target device is fixedly coupled. Rotatingly coupled, a plurality of fixing washers with a plurality of insertion fixing parts protruding from each other through the plurality of insertion holes vented to the bracket are inserted into each of the fixing fixing is fixed to both sides of the bracket, and the disk spring In order to prevent the disc spring from being separated between the nuts, a disc for preventing rotation of the disk spring is formed by a plurality of locking pieces formed with a plurality of engaging pieces cut at a predetermined angle from the inside of the hole and erected at a predetermined angle, and generating a torque through the second washer. The threaded portion formed in the connection part of the shaft while the spring is fitted is fixed to the nut. Characterized in that the finished coupling.

Description

Disk Type Friction Hinge Device

The present invention relates to a disk-type friction hinge device, and more specifically, to separate the target device in combination with a separate fixing washer on both sides of the bracket of the friction hinge device for maintaining the rotational movement state of the rotating device The present invention relates to a disk-type friction hinge device capable of preventing wear of the bracket by friction and preventing separation of other fitting members by employing a rotation preventing clip washer.

As is well known, a torque hinge device is used as a kind of hinge device in order to maintain the target device by rotating it at a predetermined position or angle, such as adjusting the angle of the display portion of the notebook computer or adjusting the screen angle of the LCD monitor. A friction hinge device, also called a hinge device, is used.

Such a friction hinge device is capable of performing a damping action to alleviate an impact as well as suppress a sudden exceeding a rotational position while generating dynamic torque when moving or rotating a target device.

On the other hand, the friction hinge device is classified into various types according to its operation principle and structure, typically, a wrap spring method, an axial disk compression method, and a roll pin. It is divided into method, question mark method, and clip spring method.

Among them, in the case of the axial disk compression type friction hinge device, a circular friction plate is installed on the shaft to generate frictional force by the applied pressure. This has the advantage of being easy.

1 is an exploded perspective view showing the overall structure of such a conventional axial disk compression friction hinge device.

In the same figure, the friction hinge device 100 includes a shaft 10, an angle control cam washer 12, washers 14 and 18, bracket 16, a plurality of disc springs 20, and a nut 22. It consists of. Here, the shaft 10 is to be screwed with the rotating side member (ie, the display portion in the case of a notebook computer) of the target device through a screw hole (10a) formed in the body, along the one end to the body The connection part 10b of the predetermined length in which the several screw thread was formed is formed.

The angle control cam washer 12, which is circular in shape and has a predetermined width groove 12a on one side thereof, is fixedly connected to the connecting portion 10b of the shaft 10, and then the circular first washer 14 is fitted. The connecting portion 10b is rotatably fitted through the hole 16a formed in the 'L' shaped bracket 16 by inserting the angle control cam washer 12 and the first washer 14. Lose.

On the other hand, the upper end of the bracket 16, that is, the portion that meets the groove 12a formed in the angle control cam washer 12, the position beyond the predetermined angle with respect to the bracket 16 and the angle control cam washer 12 The locking jaw 16b for preventing excessive movement is protruded, and a plurality of screw holes 16c are formed at the bent portion of the bracket 16, so that the base member of the target device (i.e., the main body in the case of a notebook computer) is formed. To be screwed securely to the part) side.

In addition, a plurality of disk springs 20 are fitted into the connecting portion 10b of the shaft 10 penetrating the hole 16a of the bracket 16 in a state where another circular washer 18 is fitted. The plurality of disk springs 20 may be provided with one to four disks depending on the type and size of the target device and the size of the pressing force applied according to the intended use.

Next, the connecting portion 10b of the shaft 10 in which the plurality of disk springs 20 are fitted is such that the threads thereof are completely engaged by the nut 22.

According to the conventional axial disk compression friction hinge device configured as described above, when the rotating side member coupled to the shaft 10 is rotated by the user's pressing operation bracket to the connecting portion (10b) of the shaft 10 In the plurality of disk springs 20 inserted through (16) while rotating a constant torque due to friction is generated, the sudden rotational motion is suppressed, as well as to cushion the impact.

On the other hand, by the locking action of the locking projection (16b) formed on the upper end of the bracket 16, by the width allowed by the groove 12a of the angle control cam washer 12 fixedly coupled to the shaft (10) The rotation angle of the shaft 10 is limited.

Next, when the pressing operation on the rotating side member coupled to the shaft 10 is stopped, the angular position of the rotating side member is fixedly maintained by the pressing force based on the tightening elasticity of the disk spring 20.

On the other hand, in the conventional axial disk compression type friction hinge device configured as described above, the front and rear portions of the shaft 10 penetrated through the holes 16a of the bracket 16 have their front and rear portions closed. The first and second washers 14, 18 are connected in direct contact so that friction caused by the rotation of the shaft 10 frequently occurs between the first and second washers 14, 18 and the bracket 16. Therefore, the material of the bracket 16 should be made of a high strength steel sheet with high hardness.

However, in the case of a high-hardness steel sheet having a high hardness that is employed to prevent the wear of the material due to the friction frequently generated between the bracket 16 and the first and second washers 14 and 18, it is relatively soft. Since it has a higher price range than a conventional steel sheet, there is a disadvantage in that it acts as a main factor for raising the overall manufacturing price.

In addition, since the first and second washers 14 and 18 are simply coupled to the front and rear surfaces of the bracket 16 through the connecting portion 10b of the shaft 10 without passing through a separate coupling means. If the rotation operation is repeated for a long time, there is a problem that unnecessary contact is generated while the contact part is released.

Therefore, in order to prevent such an unwinding state, a separate process is required, but when processing a groove for preventing unwinding in the shaft 10, there is a disadvantage that the processing cost increases.

In addition, since the plurality of disk springs 20 are connected so as to be in direct contact with the second washer 18 and the nut 22, the nut 22 is loosened to the connecting portion 10b of the shaft 10. If the state of engagement with the threads formed in the incomplete or loosening between the first and second washers (14,18) and the bracket 16 is loosened the tightening elastic state of the disk spring 20 is released The problem arises that this is not applied properly or, more seriously, the disk spring is more likely to come off.

Accordingly, the present invention has been made to solve the above-mentioned problems, the object of the present invention is to provide a fixing washer between the connecting portion of the bracket and the other fixing member in the disk-type friction hinge device, the binding state of each member It is to provide a disk-type friction hinge device that can be maintained while preventing the wear of the bracket.

Another object of the present invention is to provide a disk-type friction hinge device that can prevent the separation of the disk spring by installing the anti-rotation clip washer on the disk spring side that generates torque in the disk-type friction hinge device.

According to the disk-type friction hinge device according to the present invention in order to achieve the above object, the angle control cam washer and the first washer is fitted to the connecting portion of the shaft to which the rotating side member of the target device is fixedly coupled The fixing side member is fitted through the bracket and the hole fixedly coupled to be rotatably coupled, and the plurality of fixing washers with a plurality of insert fixing parts are inserted through the plurality of insertion holes vented to the bracket. It is securely coupled to both sides of the bracket, and a rotation preventing clip washer formed with a plurality of engaging pieces erected at an angle by cutting a predetermined portion from the inside of the hole to prevent the disc spring from being separated between the disc spring and the nut. Are coupled and the disk spring generating torque via the second washer is fitted. Standing the friction hinge device of a threaded portion of a fixed end coupled to a disk-type nut is provided formed in the connection portion of the shaft.

Preferably, the connecting portion of the shaft is formed at least two or more recessed grooves along the longitudinal direction, the hole of the disk spring is formed so that at least two or more protruding to accommodate the recessed grooves of the connecting portion.

More preferably, the plurality of insertion fixing parts protruding from the plurality of fixing washers are formed to protrude in a triangular shape, and the bracket is made of a relatively low-cost metal plate having a soft material.

In addition, the present invention is characterized in that the rotation preventing clip washer is further installed between the second washer and the disk spring.

According to the present invention configured as described above, in the disk-type friction hinge device that is employed to bind the divided target device, such as a notebook computer, and to enable the rotation and holding of the display portion, fixedly coupled to the body portion of the notebook computer As the plurality of fixing washers are fixedly coupled to both sides of the bracket to prevent friction and loosening with the washers, the bracket can be made of a relatively soft material and the cost of parts can be reduced. In addition, by additionally installing a clip washer to prevent the departure of the disk spring on the side of the disk spring generating torque, the reliability of the product can be improved while preventing the separation of the disk spring.

1 is an exploded perspective view showing the overall structure of a disk type friction hinge device according to the prior art;

2 is a perspective view showing a disk type friction hinge device employing a fixing washer and a clip washer according to a first embodiment of the present invention,

Figure 3 is an exploded perspective view showing the overall structure of the disk type friction hinge device shown in Figure 2 according to a first embodiment of the present invention,

Figure 4 is an assembly cross-sectional view showing a state in which the fixing washer is assembled in the friction type hinge device of the disk type shown in Figure 3,

5 is an exploded perspective view showing the overall structure of the disk-type friction hinge device according to the second embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

10: shaft, 12: angle control cam washer,

14, 18: washer, 16: bracket,

20: disc spring, 22: nut,

30, 32: fixing washer, 36, 38: clip washer.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the disk type friction hinge device according to a first embodiment of the present invention.

That is, FIG. 2 is a perspective view of a disk type friction hinge device employing a fixing washer and a clip washer according to the first embodiment of the present invention, and FIG. 3 is shown in FIG. 2 according to the first embodiment of the present invention. Figure 4 is an exploded perspective view showing the overall structure of the disk-type friction hinge device, Figure 4 is an assembled cross-sectional view showing a state in which the fixing washer is assembled in the disk-type friction hinge device shown in FIG.

In the same figure, the same reference numerals are given to the same components as those of FIG. 1 showing the conventional friction hinge apparatus, and detailed description thereof will be omitted.

In the same figure, the angle control washer 12 is fitted in the connecting portion 10b of the shaft 10, and the bracket 16 is mounted on the shaft 16 through the hole 16a in a state where the first washer 14 is fitted. 10 may be rotatably coupled to the connecting portion 10b, and a first fixing washer 30 having a circular shape is formed between the first washer 14 and the bracket 16 to the connecting portion 10b. It is inserted and interposed.

In addition, a second washer 18 is fitted in the connecting portion 10b of the shaft 10 in which the first fixing washer 30 and the bracket 16 are fitted, and the bracket 16 and the second washer 18 are fitted. Between the second fixing washer 32 having the same shape as the first fixing washer 30 is fitted.

As shown in FIG. 4, the first and second fixing washers 30 and 32 have a plurality of insertion fixing parts 34 protruding in a triangular shape at both ends of the circular shape. The plurality of insertion fixing parts 34 are inserted into the insertion holes 16d of the bracket 16 to fix the first and second fixing washers 30 and 32.

Since the insertion fixing part 34 protrudes in a triangular shape, it is possible to prevent shaking and maintain a solid assembly state. However, the number of insertion fixing parts 34 protruding from the first and second fixing washers 30 and 32, respectively, can be increased or decreased as needed.

In addition, the bracket 16 has the first and second fixing washers 30 and 32 fixedly coupled to both sides thereof so that direct contact with the first and second washers 14 and 18 does not occur. As a result, abrasion due to friction does not occur, so that a relatively soft metal plate can be manufactured.

In addition, a plurality of discs are provided in the connecting portion 10b of the shaft 10 in which the first fixing washer 30, the bracket 16, the second fixing washer 32, and the second washer 18 are fitted. The spring 20 and the nut 22 are fitted and finished.

Here, the plurality of disk springs 20 are formed in the shape of a four-leaf clover with four holes protruding from the shape of the holes 20a, and the connecting portion 10b of the shaft 10 is the disk spring 20. In order to be accommodated in the hole 20a of the groove, four grooves are formed in the same length as the shape of the hole 20a in the longitudinal direction.

Meanwhile, a rotation preventing clip washer 36 is inserted between the second washer 18 and the disc spring 20 to prevent the disc spring 20 from being separated from the disc washer 20 and the nut. The third washer 38 is inserted between the 22.

Here, the clip washer 36 is formed by a plurality of engaging pieces 40 are formed at a predetermined angle by cutting a predetermined portion from the inside of the hole, the clip washer 36 is connected to the shaft (10) ( Once inserted into 10b), it does not fall easily due to the locking action by the locking piece 40.

However, another clip washer may be additionally installed between the disc spring 20 and the nut 22.

The operation of the present invention configured as described above will be described in more detail.

First, in a state where the angle control cam washer 12 and the first washer 14 are fitted to the connecting portion 10b of the shaft 10, both sides of the bracket 16 are provided with the first and second fixing washers 30, Insertion fixing portion 34 formed in 32 is fixedly coupled to the insertion hole (16c) is fitted to the connecting portion (10b) of the shaft (10).

Next, a second washer 18 and an anti-rotation clip washer are connected to the connecting portion 10b of the shaft 10 in which the first fixing washer 30, the bracket 16, and the second fixing washer 32 are fitted. 36, the plurality of disk springs 20, the third washers 38 are fitted, respectively, and finally screwed together by the nuts 22. As shown in FIG.

In such a disk type friction hinge device 100, the shaft 10 is fixedly coupled to the rotating side member of the target device such as a notebook computer, that is, the display portion, through the screw hole 16a, and the bracket 16 is attached thereto. It is fixedly screwed to the base member, that is, the main body portion, through the screw hole 16a.

When the display portion is pressed by the user in such a coupling state and the shaft 10 is to be rotated, the connecting portion 10b of the shaft 10 is rotated, and a plurality of disk springs fitted to the connecting portion 10b ( The rotation proceeds while receiving the torque caused by the friction generated in 20).

At this time, the bracket 16 is in direct contact with the first and second washers 14 and 18 as the first and second fixing washers 30 and 32 are fixedly interposed on both sides. As it becomes difficult, frictional wear does not occur.

On the other hand, when the display portion coupled to the shaft 10 is stopped to rotate as moving at a constant rotation angle, the disk spring 20 is maintained at a constant rotation angle of the display portion by the pressing force due to its tightening elasticity It will be fixed as much as possible.

At this time, the anti-rotation clip washers 36 coupled to both sides of the plurality of disk springs 20 are loosened of the disk springs 20 through a locking action by the plurality of locking pieces 40 formed therein. It is designed to prevent departure.

Next, a second embodiment of the present invention will be described in detail with reference to the accompanying drawings.

5 is an exploded perspective view showing the overall structure of the disk-type friction hinge device according to the second embodiment of the present invention.

In the second embodiment of the present invention shown in FIG. 5, the overall components are similar to the first embodiment of the present invention shown in FIG. 3, but the shape of the connecting portion 10b of the shaft 10 and the disk spring ( The hole shape of 20 is different from the first embodiment.

That is, the connecting portion 10b of the shaft 10 is formed with grooves recessed to both sides along the longitudinal direction thereof, and the shape of the hole 20a of the disc spring 20 also includes the recessed grooves of the connecting portion 10b. Both sides protrude to accommodate.

On the other hand, by changing the shape of the connecting portion 10b of the shaft 10 and the hole 20a of the disk spring 20, the coupling of the connecting portion 10b and the disk spring 20 can be further solidified.

As described above, according to the disk-type friction hinge device according to the present invention, the washer and the bracket are performed even if frequent rotation is performed by additionally coupling a washer that can be fixed between the bracket into which the shaft is fitted and the washer to the bracket side. As the friction between the two does not occur and wear does not occur, it is possible to manufacture the bracket as a low-cost and relatively soft material, thereby reducing the overall part price.

In addition, by installing the anti-rotation clip washer on the side of the disk spring generating torque, it is possible to prevent unnecessary loosening or detachment of the disk spring, so that the shaft does not need to be processed separately to prevent the disk spring from coming off. As a result, the processing cost is reduced, and the reliability of the overall function is improved.

The present invention is not limited to the above-described specific preferred embodiments, and any person having ordinary skill in the art to which the present invention pertains may make various modifications without departing from the gist of the present invention claimed in the claims. Of course, such changes are intended to fall within the scope of the claims set forth.

Claims (5)

The angle control cam washer and the first washer are fitted to the connection portion of the shaft to which the rotation side member of the target device is fixedly coupled. , A plurality of fixing washers having a plurality of insertion fixing parts protruding are inserted into the fixing fixing parts through a plurality of insertion holes vented to the bracket, and fixedly coupled to both sides of the bracket, Between the disk spring and the nut to prevent the separation of the disk spring, a predetermined portion is cut from the inside of the hole is coupled to the rotation preventing clip washer formed with a plurality of engaging pieces erected at a predetermined angle, A disk-type friction hinge device, characterized in that the threaded portion formed at the connecting portion of the shaft is fixedly fixed to the nut while the disk spring generating torque is inserted through the second washer. 2. The connecting portion of the shaft according to claim 1, wherein the connecting portion of the shaft forms at least two recessed grooves along its longitudinal direction, and the hole of the disc spring is formed at least two protrusions to receive the recessed grooves of the connecting portion. Disc type friction hinge device, characterized in that made to be. The disk-type friction hinge device according to claim 1, wherein the plurality of insertion fixing parts protruding from the plurality of fixing washers are formed to protrude in a triangular shape. The disk-type friction hinge device according to claim 1, wherein the bracket is made of a metal plate having a soft material. The disk type friction hinge device according to claim 1, further comprising an anti-rotation clip washer disposed between the second washer and the disk spring.