KR20030000930A - Axial disk compression type hinge device - Google Patents

Abstract

PURPOSE: An axial direction disk compression type hinge device is provided to reduce the cost by using a standardized part as a hinge axis through the simple process and to increase the assembly, and the smoothness and the stability of the movement by assembling a disc spring simply and fitting the disc spring to an assembling position simply. CONSTITUTION: The first hinge bracket(10) is joined to a main body. The second hinge bracket(20) is joined to a display. For the relative motion of the first and the second hinge bracket(10,20), the hinge axis(30) is inserted into both axis holes(12a) of the first and the second hinge bracket(10,20). A plurality of space washers(40) is installed to both sides of the first hinge bracket(10). The disc springs(50) are installed to the hinge axis(30) in order to support the first and the second hinge bracket(10,20) elastically. A guide washer(60) is inserted into a rear part of the disc spring(50). A fixing nut(70) is joined to an end part of the hinge axis(30). A key groove(33) is formed on the hinge axis(30) at a lengthwise direction. The position of the disc spring(50) is constantly kept on the hinge axis(30) by forming a position deciding protrusion inserted into the key groove(33) on the disc spring(50).

Description

Axial Disc Compression Hinges {AXIAL DISK COMPRESSION TYPE HINGE DEVICE}

The present invention relates to a hinge device used to hold an object at a constant position or angle, and in particular, to maintain the display body of a notebook computer at a constant angle with respect to the main body or to properly adjust and maintain the screen angle of an LCD monitor. An axial disk compression hinge device.

For example, in a notebook computer, the hinge device couples the cover in which the display is integrated to the main body so as to be opened and closed in the vertical direction, and when the cover is opened, an appropriate angle with respect to the main body is set by the pressing force such as a disc spring. It plays a role in keeping it accomplished. At the same time, the hinge device also generates dynamic torque due to friction when an object such as a cover of a notebook computer moves or rotates, thereby suppressing sudden movement of the object and cushioning an impact.

Such a hinge device is implemented in various forms according to its operation principle and structure, and typical examples of the hinge device are wrap spring type, axial disk compression type, roll pin type and clip spring type.

Among these, an axial disk compression hinge device has a structure using a plurality of pairs of disk springs, a typical example of which is illustrated in FIG. 1, which is briefly described as follows.

1 is a view showing a conventional axial disc compression hinge device, in which reference numeral 1 denotes a first hinge bracket, 2 a second hinge bracket, 3 a hinge shaft, 4 and 4 'space washers, and Is a disc spring, 6 is a guide washer, and 7 is a tightening nut.

The first hinge bracket 1 is, for example, coupled to a main body (not shown) of a notebook computer or LCD monitor, and the second hinge bracket 2 is a display body of a notebook computer cover or LCD monitor (not shown). Not bound). Through holes 11 and 12 are formed in the bent portions 1a and 2a of the hinge brackets 1 and 2, respectively, and these hinge brackets 1 and 2 are their through holes 11, respectively. It is connected by the hinge axis 3 coupled through 12 to enable relative movement. Space washer (4) (4 '), disk spring (5), guide washer (6) is sequentially inserted into the hinge shaft (3) from the left side of the drawing, the fastening nut at the end of the hinge shaft (3) (7) is combined.

The space washers 4 and 4 ′ are paired in pairs, respectively, so that the friction contacts between the two sides of the first hinge bracket 1, ie, the first hinge bracket 1 and the second hinge bracket 2, are separated from each other. And a frictional contact between the first hinge bracket 1 and the disk spring 5, respectively, which are employed for smooth hinge operation. Here, although not shown in the figure, several oil grooves may be formed in the space washers 4 and 4 '.

The disc spring (5) is to allow the display body to maintain a constant angle with respect to the main body by elastically supporting the first hinge bracket (1) toward the second hinge bracket (2), the direction in which the two pairs apply elasticity to the outside It is interposed on the hinge axis. Such a disk spring can adjust the required torque of the hinge device by adding or subtracting the number thereof.

In the conventional hinge device as described above, since the second hinge bracket 2 is elastically supported by the first hinge bracket 1 by the disc spring 5, the second hinge bracket 2 maintains its state unless an external force is applied. do. In this state, when the display body is rotated, an external force acts in the direction of opening to the second hinge bracket 2, and thus the second hinge bracket 2 rotates while overcoming the elasticity of the disc spring 5. The sieve rotates, and when the external force is removed, the elasticity of the disc spring 5 acts on the second hinge bracket 2 to maintain a constant angle of the state in which the display body is rotated.

However, the above-described conventional hinge device uses a hinge shaft processed through a separate process, which causes a cost increase.

In addition, smoothness and stability of operation can be expected only when two pairs of disc springs interposed on the hinge shaft are correctly matched. However, the conventional structure has problems in assemblability, such as difficulty in accurately matching disc springs. There is also a problem that shortening the life of the spring and the smoothness and stability of the operation is poor.

In addition, the conventional hinge device also has a problem in that lift test performance is limited because the oil groove of the space washer is formed in a circular hole of a simple shape.

The present invention has been made in view of the above, and provides an axial disk compression hinge device that can reduce costs by using standardized parts, such as bolts, as a hinge shaft through simple machining. There is a purpose.

Another object of the present invention is to provide an axial disk compression hinge device that can be easily and accurately assembled and its position of the disk spring to improve the assembly, smoothness and stability of operation.

It is still another object of the present invention to provide an axial disk compression hinge device that can further improve lift test performance.

1 is a view showing a conventional axial disk compression hinge device;

2 is a view showing an axial disk compression hinge apparatus according to an embodiment of the present invention,

3 is a side view of FIG.

4a and 4b is a front view and a side view showing a hinge axis used in the hinge device of the present invention,

5a and 5b is a front view and a side view showing a space washer used in the hinge device of the present invention,

6a and 6b is a front view and a side view showing a disk spring used in the hinge device of the present invention,

7a and 7b is a front view and a side view showing a guide washer used in the hinge device of the present invention, and

8 is a view showing an axial disk compression hinge apparatus according to another embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

10,20; first and second hinge brackets 30; hinge shafts

33; keyway 40; space washer

50; disc spring 60; guide washer

Positioning projection 70; tightening nut

80; compression coil spring

An axial disk compression hinge apparatus according to the present invention for achieving the above object is a first hinge bracket coupled to a main body such as a notebook computer or an LCD monitor, and a first coupled to a display body such as a notebook computer or an LCD monitor. 2 hinge brackets, hinge shafts inserted through their shaft holes for the relative movement of the first and second hinge brackets, and a plurality of space washers interposed on both sides of the first hinge brackets of the hinge shafts; In order to elastically support the first and second hinge brackets, a plurality of pairs of disc springs interposed on the hinge shaft, guide washers fitted to the hinge shafts to be positioned at the rear of the disc springs, and fastening nuts fastened to the ends of the hinge shafts. It is provided with a key groove is formed in the hinge shaft along the longitudinal direction, the disk spring is inserted into the key groove of the hinge shaft Positioning projections are formed. Therefore, the position of the disk spring on the hinge shaft can be kept constant, and the assemblability thereof can also be improved.

The hinge shaft can be constructed at low cost through a simple process of machining a keyway in a conventional standardized bolt.

In addition, the present invention may be formed in the guide washer is a positioning projection which is inserted into the key groove of the hinge shaft.

In addition, a plurality of oil grooves having a long hole shape may be formed in the space washer communicating with the inner diameter thereof.

According to another preferred embodiment of the present invention, a hinge device for adjusting and maintaining the angle of the display body relative to the main body, such as a notebook computer or LCD monitor, comprising: a first hinge bracket; A second hinge bracket; Hinge shafts fitted through their shaft holes to connect the first and second hinge brackets to allow relative movement; A plurality of space washers interposed on both sides of the first hinge bracket of the hinge shaft; A plurality of disc springs for the same purpose as compression coil springs interposed on the hinge shafts for elastically supporting the first and second hinge brackets; A guide washer fitted to the hinge shaft to be located at the rear portion of the disc spring; And a fastening nut fastened to an end of the hinge shaft, wherein the hinge shaft is provided with a key groove along a longitudinal direction thereof, and the disk spring and the guide washer are formed with positioning protrusions inserted into the key groove of the hinge shaft. An axial disk compression hinge device is provided which is configured to maintain a constant position of the disc spring and the guide washer on the hinge shaft.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a view showing an axial disk compression hinge device according to an embodiment of the present invention, Figure 3 is a side view of Figure 2, Figures 4a and 4b is a front view and side view showing a hinge axis used in the hinge device of the present invention. 5A and 5B are front and side views showing a space washer used in the hinge apparatus of the present invention, and FIGS. 6A and 6B are front and side views of a disk spring used in the hinge apparatus of the present invention, and FIGS. 7A and 7B. Is a front view and a side view showing a guide washer used in the hinge apparatus of the present invention.

As shown in Figures 2 and 3, the axial disk compression hinge device according to an embodiment of the present invention, the first hinge bracket 10, the second hinge bracket 20, the hinge shaft 30, a plurality of space washers 40, a plurality of pairs of disk springs 50, guide washers 60, and a fastening nut 70 are provided.

The first hinge bracket 10 may include, for example, a fixing portion 11 fixed to a main body (not shown) of a notebook computer or an LCD monitor, and a bent portion 12 bent vertically from the fixing portion 11. The bent portion 12 has a shaft hole (12a) is formed.

The second hinge bracket 20 includes a fixing part 21 fixed to a display body (not shown) such as a notebook computer or an LCD monitor, and a bent part 22 vertically bent from the fixing part 21. ), The bent portion 22 is formed with a shaft hole (22a).

The hinge shaft 30 is installed to penetrate through the shaft holes 12a and 22a formed in the bent portions 12 and 22 of the first and second hinge brackets 10 and 20. The first and second hinge brackets 10 and 20 are connected to each other to allow relative movement, that is, bidirectional rotational movement about the hinge axis 30. As shown in FIGS. 4A and 4B, the hinge shaft 30 is provided with a head 31 at one end and a threaded part 32 at the other end thereof. ) Is made of machined structure. In other words, in the prior art, a high manufacturing cost was required by manufacturing a hinge shaft by processing a separate shaft member. However, in the present invention, a simple keyway machining is performed on a bolt that has been standardized to be utilized as a hinge shaft, thereby achieving cost reduction. will be. Here, the key groove 33 easily assembles the disc spring 50 or the guide washer 60, etc. inserted into the hinge shaft 30, and accurately maintains and coincides with the position in the hinge shaft 30 thereof. For this purpose, the description thereof will be described later.

The space washers 40 are positioned before and after the first hinge bracket 10 of the hinge shaft 30, and are generally two between the first hinge bracket 10 and the second hinge bracket 20. And about two between the first hinge bracket 10 and the disk spring 50, and the first and second hinge brackets 10, 20 and the disk spring 50 by frictional contact. To prevent wear and to ensure a smooth operation. As shown in FIGS. 5A and 5B, the space washer 40 has a through hole 41 through which the hinge shaft 30 penetrates and a plurality of oil-filled parts for smooth operation of the friction part. An oil groove 42 is provided. The oil groove 42 is formed in a curved shape in communication with the through hole 41 at intervals of about 90 degrees with respect to the through hole 41. In the illustrated example, four oil grooves 42 are formed, but the embodiment is not necessarily limited thereto.

The disk spring 50 is installed to elastically support the first hinge bracket 10 and the second hinge bracket 20 at the rear of the first hinge bracket 10 of the hinge shaft 30. As a result, the second hinge bracket 20 is elastically in close contact with the first hinge bracket 10 unless an external force is applied to maintain the state. As shown in FIGS. 6A and 6B, the disc spring 50 has a convex portion whose center portion is curved outwardly, and is installed on the hinge shaft 30 so as to face the convex portion facing outward. Will be elastically supported. In the present invention, the disk spring 50 is provided with a positioning projection 51 protruding into the center through hole in order to be easily positioned at the correct position on the hinge shaft 30, thereby the disk spring 50 ) When the positioning projection 51 is inserted into the key groove 33 of the hinge shaft 30 is assembled, it is possible to accurately and easily match the position on the hinge shaft (30). Therefore, it is possible to solve the shortening of the life of the disk spring, the instability of the operation, and the like, which may occur due to the disc spring being displaced. On the other hand, the disk spring 50 as shown in the figure is shown as a pair of four, this may be added or subtracted for torque adjustment in some cases.

The guide washer 60 is fitted to the rear end of the disc spring 50 of the hinge shaft 30, the fastening nut 70 is fastened to the end screw portion of the hinge shaft 30. The guide washer 60 serves to support the disk spring 50, which also has a positioning protrusion 61 protruding into a through hole in the center thereof, so that its position is constant when assembling the hinge shaft 30. It is supposed to be decided.

In the axial disk compression hinge device according to the present invention configured as described above, the first and second hinge brackets are sandwiched between the hinge shafts 30 through the shaft holes of the first and second hinge brackets 10 and 20. 10) After the 20 is connected to each other to allow relative movement, the spacer washer 40, the disk spring 50, the guide washer 60 are sequentially inserted in the hinge shaft 30 and finally the hinge shaft ( Assemble the fastening nut 70 to the end of 30). Here, the space washer 40 is interposed between the first and second hinge brackets 10 and 20 and the friction contact portion between the first hinge bracket 10 and the disc spring 50.

The first hinge bracket 20 fixed to the display body of the notebook computer or the LCD monitor is initially applied by the disk spring 50 so as to be elastically in close contact with the first hinge bracket 10 so that external force is not applied. It stays that way.

In this state, when the display body is opened or rotated to adjust the angle, the second hinge bracket 20 rotates while winning the elasticity of the disk spring 50. When the external force is removed, the disk spring ( While the elasticity by 50) acts, the second hinge bracket 20 is maintained in an adjusted state.

This action is not significantly different from the conventional case, but the present invention is not only easy to assemble the parts, but also the position of the parts on the hinge axis can be kept constant, the characteristics that can improve the smoothness and stability of the hinge operation have.

8 is a view showing an axial disk compression hinge apparatus according to another embodiment of the present invention.

As can be seen from the drawings, the basic structure of the hinge apparatus according to another embodiment of the present invention is made similar to the embodiment of the present invention described above.

That is, the hinge shaft 30 is fitted through the shaft hole of the first hinge bracket 10 and the second hinge bracket 20, and the space washer 40 and the disk spring 50 are fitted to the hinge shaft 30. The guide washer 60, and the fastening nut 70 is coupled to the same as the embodiment of the present invention. In this embodiment, however, the compression coil spring 80 is interposed between the first hinge bracket 10 and the guide washer 60. Therefore, in the drawings, the same reference numerals are assigned to the same members as those of the exemplary embodiment of the present invention, and thus detailed description thereof will be omitted.

The compression coil spring 80 added in this embodiment serves to elastically support the first and second hinge brackets 10 and 20 like the disc spring 50, and the compression coil spring 80 One end is fixed to the first hinge bracket 10, the other end is fixed to the guide washer (60).

The operation and effect of the hinge apparatus according to another embodiment of the present invention is also not significantly different from the above-described embodiment, and thus a detailed description thereof will be omitted.

According to the present invention as described above, since the positioning projections of the disc spring 50 and the guide washer 60 are inserted into the key groove 33 of the hinge shaft 30 at the time of assembly of the parts, these disc springs 50 ) And the position in the hinge axis of the guide washer 60 can be accurately and easily matched. Therefore, the stability of the hinge device operation can be attained.

In addition, the present invention is used by processing the key groove in the normalized bolt as a hinge shaft, it is possible to reduce the cost of production as well as manufacturing.

Further, in the present invention, since a larger area of oil grooves is formed in the space washer, not only the lift test performance can be improved but also the operation smoothness can be improved.

While the invention has been described and illustrated in connection with a preferred embodiment for illustrating the principles of the invention, the invention is not limited to the configuration and operation as such is illustrated and described. Rather, those skilled in the art will appreciate that many modifications and variations of the present invention are possible without departing from the spirit and scope of the appended claims. Accordingly, however, all suitable changes, modifications, and equivalents should be considered to be within the scope of the present invention.

Claims (5)

A hinge device for adjusting and holding an angle of a display body relative to a main body such as a notebook computer or an LCD monitor, A first hinge bracket coupled to the main body; A second hinge bracket coupled to the display body; Hinge shafts fitted through their shaft holes to connect the first and second hinge brackets to allow relative movement; A plurality of space washers interposed on both sides of the first hinge bracket of the hinge shaft; A plurality of pairs of disc springs interposed on the hinge shafts to elastically support the first and second hinge brackets; A guide washer fitted to the hinge shaft to be located at the rear portion of the disc spring; And And a fastening nut fastened to an end of the hinge shaft. The hinge shaft is formed with a key groove along its longitudinal direction, The disk spring has a positioning projection is inserted into the key groove of the hinge shaft, the axial disk compression hinge device, characterized in that configured to maintain a constant position of the disk spring on the hinge shaft. The method of claim 1, Axial disk compression hinge device, characterized in that the key groove is machined in the normal bolt used as a hinge axis. The method of claim 1, An axial disk compression hinge device, characterized in that the positioning washer is formed in the guide washer is inserted into the key groove of the hinge shaft. The method according to any one of claims 1 to 3, And the space washer is formed with a plurality of oil grooves having a long hole shape in communication with the inner diameter thereof. A hinge device for adjusting and holding an angle of a display body relative to a main body such as a notebook computer or an LCD monitor, A first hinge bracket coupled to the main body; A second hinge bracket coupled to the display body; Hinge shafts fitted through their shaft holes to connect the first and second hinge brackets to allow relative movement; A plurality of space washers interposed on both sides of the first hinge bracket of the hinge shaft; A plurality of disc springs for the same purpose as compression coil springs interposed on the hinge shafts for elastically supporting the first and second hinge brackets; A guide washer fitted to the hinge shaft to be located at the rear portion of the disc spring; And And a fastening nut fastened to an end of the hinge shaft. The hinge shaft is formed with a key groove along its longitudinal direction, The disk spring and the guide washer is formed with a positioning projection which is inserted into the key groove of the hinge shaft, respectively, axial disk compression hinge device, characterized in that configured to maintain a constant position of the disk spring and the guide washer in the hinge shaft .