KR20030000931A - Axial disk compression type hinge device - Google Patents

Abstract

PURPOSE: An axial direction disk compression type hinge device is provided to reduce the assembly and the manufacturing cost by reducing the parts largely and to reduce the cost by using a standardized part as a hinge axis through the simple process. CONSTITUTION: The first hinge bracket(10) includes a fixing part fixing to a main body, a bending part perpendicularly bent from the fixing part, and the first embossing part having the first axis hole protruded to one side of a center of the bending part. The second hinge bracket(20) includes the fixing part fixing to a display, the bending part perpendicularly bent from the fixing part, and the second embossing part having the second axis hole protruded to a direction confronting to the first embossing part at the center of the bending part. A hinge axis(30) penetrates into the first and the second axis hole by making the first and the second hinge bracket(10,20) contact to the embossing part. A disc spring(40) supports the first and the second hinge bracket(10,20) elastically by interposing between a head of the hinge axis(30) and the first hinge bracket(10). A fixing nut(60) is fixed to an end of the hinge axis(30).

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, the 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 an LCD monitor, and the second hinge bracket 2 is a display body of a notebook computer or an LCD monitor (not shown). ) Is combined. 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 each paired in pairs to friction between both sides of the first hinge bracket 1, ie, the first hinge bracket 1 and the second hinge bracket 2, respectively. Interposed between the contact portion and the frictional contact between the first hinge bracket 1 and the disk spring 5, respectively, which is 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 in the hinge shaft 3. 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 conventional hinge device as described above requires a relatively large number of parts, and thus has a problem in that the number of assembly operations is high and the manufacturing and assembly costs are high. Moreover, the conventional hinge device uses a hinge shaft processed through a separate process, which causes a cost increase.

In addition, the conventional hinge device can be expected smoothness and stability of operation only when the disc spring interposed in the pair of the hinge shaft exactly match, but the conventional structure is difficult to match the disc spring, such as assembly problems In addition to this, there is also a problem that shortening the life of the disk spring and the smoothness and stability of the operation is reduced.

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.

SUMMARY OF THE INVENTION The present invention has been made in view of the above, and an object thereof is to provide an axial disk compression hinge device that can significantly reduce assembly and manufacturing costs by greatly reducing the number of parts.

It is another object of the present invention to provide an axial disk compression hinge device that can reduce costs by using standardized parts, such as bolts, as a hinge axis through simple machining.

It is still another object of the present invention to provide an axial disk compression hinge device that can be easily and precisely assembled and its disk spring assembled, thereby improving the assemblability, smoothness of operation and stability.

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,

3a and 3b are front and side views showing a first hinge bracket used in the hinge device of the present invention;

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

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

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

7A and 7B are front and side views showing a space washer used in the hinge apparatus of the present invention.

Explanation of symbols on the main parts of the drawings

10,20; First and second hinge brackets 13,23; First and second embossed parts

30; hinge shaft 33; keyway

40; disc spring 41; positioning protrusion

50; space washer 52; oil groove

60; tightening nut

The axial disk compression hinge device according to the present invention for achieving the above object is a fixed portion coupled to the main body, such as a notebook computer or LCD monitor, bent vertically bent therefrom, and in the center of the bent portion A first hinge bracket having a first embossing portion having a first shaft hole protruding to one side; A second shaft having a fixing portion coupled to a display body such as a notebook computer or an LCD monitor, a bending portion vertically bent therefrom, and a second shaft hole protruding in a direction opposite to the first embossing portion at the center of the bending portion; A second hinge bracket provided with an embossing portion; A hinge shaft installed through the shaft hole of the first and second hinge brackets while the first and second hinge brackets are in contact with the embossing portion thereof; At least one disc spring interposed between the head of the hinge shaft and the first hinge bracket to resiliently support the first and second hinge brackets on the hinge shaft; And a fastening nut fastened to an end of the hinge shaft. Since the present invention can greatly reduce the number of components, the assembly and manufacturing costs can be reduced.

At least one of the embossed portions of the first and second hinge brackets may be formed with oil grooves for receiving oil for lubricating these frictional contact portions.

In addition, the hinge device according to the present invention may further include a space washer interposed between the embossed portion friction contact portion for smooth operation of the first and second hinge brackets. The space washer may be formed with an oil groove in the form of a long hole in communication with its through hole.

The hinge shaft has a key groove formed along a longitudinal direction thereof, and the first hinge bracket and the disc spring are provided with positioning protrusions inserted into the key groove of the hinge shaft, respectively. Therefore, the assembly of the hinge shaft and the disk spring can be facilitated, and the position of each component is accurately maintained by the key groove and the positioning projection, thereby improving the stability and smoothness of the operation. Furthermore, since the hinge shaft can be manufactured by a simple process of processing a keyway on a conventional standardized bolt, the manufacturing cost as well as the manufacturing time can be considerably shortened as compared with the conventional manufacturing of a separate member through various processing processes. You can.

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

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

As shown in FIG. 2, the axial disk compression hinge device according to an embodiment of the present invention includes a first hinge bracket 10, a second hinge bracket 20, and a hinge shaft 30. And a disc spring 40, a space washer 50, and a fastening nut 60.

As shown in FIGS. 3A and 3B, the first hinge bracket 10 includes, for example, a fixing portion 11 fixed to a main body (not shown), such as a notebook computer or an LCD monitor, from the fixing portion 11. It has a bent portion 12 bent vertically. The first embossed portion 13 having a predetermined contact area protrudes on either side of the bent portion 12, and a first shaft hole 13a is formed in the first embossed portion 13. have. In the drawing, reference numeral 14 denotes a positioning protrusion, which will be described later.

As shown in FIGS. 4A and 4B, the second hinge bracket 20 includes a fixing part 21 and a fixing part 21 fixed to a display body (not shown) such as the notebook computer or the LCD monitor. Bent portion 22 is bent vertically from). A second embossing portion 23 is formed at a substantially center of the bent portion 22 and has a predetermined contact area which protrudes in a direction opposite to the first embossing portion 13 to be in contact with each other. The second shaft hole 23a is formed in the portion 23.

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. At this time, the first and second hinge brackets 10 and 20 are assembled such that the first and second embossed portions 13 and 23 protruding from the bent portions 12 and 22 are in contact with each other. 5A and 5B, the hinge shaft 30 has a key groove 33 along a length thereof in a conventional standardized bolt having one end 31 having a head 31 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 hinge shaft 30 and the disk spring 40 or the space washer 50 inserted therein, and precisely positions the hinge shaft 30 at the hinge shaft 30. To maintain and match, the description thereof will be described later.

The disc spring 40 elastically supports the first hinge bracket 10 and the second hinge bracket 20 between the head 31 of the hinge shaft 30 and the first hinge bracket 10. Is installed. 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. 6A and 6B, the disc spring 40 has a convex portion whose center portion is curved outward, and the hinge shaft (the convex portion faces the head 31 of the hinge shaft 30). It is interposed in 30) to elastically support the hinge bracket. In the present invention, the disk spring 40 is provided with a positioning projection 41 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 40 ) When the positioning projection 41 is inserted into the key groove 33 of the hinge shaft 30 is assembled, the position on the hinge shaft 30 can be accurately and easily adjusted. 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. In addition, since the recessed portion formed by the embossed portion 13 of the first hinge bracket 10 and the disk spring 40 cooperate to exert elasticity, the number of the disk springs 40 is shown in the drawing. As described above, even if one is used, sufficient elasticity required can be obtained, so that the number of components can be reduced. Meanwhile, the drawing shows an example in which one disk spring 40 is employed, but the present invention is not necessarily limited thereto, and the disk spring may be increased to an appropriate number for adjusting torque.

The space washer 50 is interposed between the first and second hinge brackets 10 and 20 of the hinge shaft 30, that is, between the first and second embossed portions 13 and 23. do. The space washer 50 prevents abrasion of the embossed portions of the first and second hinge brackets 10 and 20 due to frictional contact and enables smooth operation. As shown in FIGS. 7A and 7B, the space washer 50 has a through hole 51 through which the hinge shaft 30 penetrates and a plurality of oil-filled parts for smooth operation of the friction part. An oil groove 52 is provided. The oil groove 52 is formed in a curved shape in communication with the through hole 51 at intervals of about 90 degrees with respect to the through hole 51. In the illustrated example, four oil grooves 52 are formed. However, the present invention is not limited thereto, and the oil grooves 52 may be added or subtracted in an appropriate number as necessary. Here, the space washers 50 are employed in at least a number. That is, at least two or more space washers have to be provided before and after the first hinge bracket, but in the present invention, only one space washer is provided between the first and second hinge brackets. Therefore, the number of parts can be reduced.

In the axial disk compression hinge apparatus according to the present invention configured as described above, the first and second hinge brackets are sandwiched by the hinge shafts 30 through the shaft holes of the first and second hinge brackets 10 and 20. 10) (20) is connected to each other to allow relative movement. Of course, here, the first and second hinge brackets 10 and 20 are assembled such that the embossing portions 13 and 23 abut, and the disc spring 40 is the head portion 31 of the hinge shaft 30. ) And the first hinge bracket 10. A space washer 50 is interposed between the embossing portions 13 and 23 of the first and second hinge brackets 10 and 20. Then, finally tighten the fastening nut 60 to the end of the hinge shaft (30). The second hinge bracket 20 fixed to the display body of the notebook computer or the LCD monitor is initially kept elastically in close contact with the first hinge bracket 10 by the disc spring 40 so that external force is not applied. It stays that way. In this state, when the display body is opened or the display body is rotated to adjust the angle, the second hinge bracket 20 rotates while winning the elasticity of the disk spring 40. When the external force is removed, the disk spring ( The second hinge bracket 20 is maintained in the adjusted state while the elasticity by 40 is applied.

According to the present invention as described above, since it can be composed of one disk spring and one space washer, the number of components can be reduced, and the disk spring and the hinge bracket in the key groove of the hinge shaft at the time of assembly of the components. Since the positioning projection of the insertion part, the assembly position of the parts can be accurately and easily adjusted. Therefore, smoothness and 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 having a fixing portion coupled to the main body, a bent portion vertically bent therefrom, and a first embossing portion having a first shaft hole protruding toward one of the centers of the bent portion; A second embossed portion having a fixed portion coupled to the display body, a bent portion vertically bent therefrom, and a second shaft hole protruding in a direction opposite to the first embossed portion at the center of the bent portion; Hinge brackets; A hinge shaft installed through the shaft hole of the first and second hinge brackets while the first and second hinge brackets are in contact with the embossing portion thereof; At least one disc spring interposed between the head of the hinge shaft and the first hinge bracket to resiliently support the first and second hinge brackets on the hinge shaft; And A axial disk compression hinge device comprising a; fastening nut fastened to the end of the hinge shaft. The method of claim 1, And at least one of the embossed portions of the first and second hinge brackets is formed with an oil groove for storing oil for lubrication of these frictional contact portions. The method of claim 1, And a space washer interposed between the embossed frictional contact portions of the first and second hinge brackets for smooth operation of the first and second hinge brackets. The method of claim 3, wherein The space washer is an axial disk compression hinge device, characterized in that the oil groove in the form of a long hole in communication with its through hole is formed. The method of claim 3, wherein The hinge shaft has a key groove formed along the longitudinal direction, the first hinge bracket and the disk spring, the axial disk compression hinge device, characterized in that the positioning projection is inserted into the key groove of the hinge shaft, respectively; .