KR100443869B1 - Hinge assembly for flat panel display appliance - Google Patents

Abstract

According to an aspect of the present invention, there is provided a hinge device for adjusting an inclination angle of a flat panel display device, the hinge device including a horizontal surface portion parallel to and fixed to a rear surface of the display device and a vertical surface portion perpendicular to the horizontal surface portion, the first surface having a through hole formed therein. A movable plate; A second fixing plate connected to the stand of the display device and having a vertical surface portion parallel to the vertical surface portion of the first plate and a horizontal surface portion vertical to the vertical surface portion, the upper fixing through hole formed in the vertical surface portion; A hinge shaft coupled to the through holes of the first and second plates, the hinge shaft comprising a head portion having a larger shaft diameter than the shaft portion and a shaft portion having a screw portion formed at an end thereof; A coupling member fixedly coupled to the end of the hinge shaft; A first flat washer disposed between the head portion of the hinge shaft and the vertical surface portion of the first movable plate; First and second fixing washers fixedly coupled to both sides of the through hole of the first plate; And third and fourth fixing washers fixedly coupled to both sides of the through hole of the second plate, wherein at least one of the first, second, third and fourth fixing washers applies an axial compressive elasticity. Provided is a hinge device for a video display device.

Description

HINGE ASSEMBLY FOR FLAT PANEL DISPLAY APPLIANCE}

The present invention relates to a hinge device that can adjust the tilting angle of the display in a flat panel type video display device, and in particular, a commercial bolt is used and the structure is simple without the need to separately process the hinge axis, which is a reference axis in which the display is pivoted up and down. And a hinge device configured to be easy to assemble.

Conventionally, one of these types of hinge devices is a hinge device of a video display device such as a portable computer, as shown in Fig. 1, which is fixed to a vertical portion 3b having a hinge shaft insertion hole and a casing body of the video display device. L-shaped mounting plate 3 having horizontal portion 3c to be installed, and chamfered mounting portion 1a fixedly fixed to an upper cover of a casing of an image display device on one side with a flange portion 1b interposed therebetween. ) And a hinge shaft (1) composed of an extension (1c) pivotably fitted through the hinge shaft insertion hole of the mounting plate (3) on the other side. At this time, the chamfered screw part 1c 'is formed in the end side of the extension part 1c.

The hinge device also includes washers 2a; 2b disposed on both sides of the mounting plate, an elastic washer 4 causing axial elasticity, a sleeve member 5 in contact with the elastic washer, a torsion spring 6, It includes a swing range defining washer 7 and a nut 8 having a braking protrusion 7a.

The sleeve member 5 consists of a flange portion 5a in contact with the elastic washer 4 and a tubular portion 5b into which the torsion spring 6 is fitted. One end of the torsion spring has a bent end 6a and is fitted into and fixed to a hole 3a formed in the vertical portion 3b of the mounting plate, and the other end is supported by the braking protrusion 7a of the turning range washer 7. do.

Moreover, since the turning range limited washer 7 is formed with the hole of the shape corresponding to the chamfered shape of the screw part 1c 'of the extension part 1c, the chamfering screw part 1c' is inserted in this hole, When turning the hinge shaft, the turning range is limited to the end 6a of the torsion spring 6, and when turning to the opposite side, the turning protrusion 7a is caught by the other end of the torsion spring to receive an elastic force that resists the turning motion. do.

However, such a hinge device first needs to be chamfered into a special shape for the hinge axis, and therefore, several steps for chamfering including milling and turning must be preceded during the manufacturing process of the hinge device. There was a factor of the increase in manufacturing cost, and it was necessary to manufacture a separate part corresponding to the shape of the chamfered hinge shaft, and there was a problem in design, manufacturing complexity, economy, and assembly, and the relatively soft plate of the hinge assembly rotated relatively. There was a disadvantage that there is much room for wear.

The present invention can use a commercial bolt without the need for using a special hinge shaft of the chamfered form, in order to solve the above-mentioned problems of the prior art, the plate of the hinge assembly is not worn by the relative rotation, and assembled to the chamfered hinge shaft It is possible to adjust the inclination angle of the display device without using a separate part that restricts the turning position of the hinge shaft, to provide a hinge device that is excellent in the hinge function, good assembly, and reduce the manufacturing cost.

1 is an exploded perspective view showing a hinge device for a video display device of the prior art.

Figure 2 is a perspective view of a hinge device for a video display device according to an embodiment of the present invention, the coil spring member is not installed.

3 is an exploded perspective view of the hinge device of FIG.

Figure 4 is a perspective view of a hinge device according to another embodiment of the present invention, the coil spring member is installed.

5 is an exploded perspective view of the hinge device of FIG.

<Explanation of symbols for the main parts of the drawings>

10: first movable plate

20: second fixing plate

30: hinge axis

41: first flat washer

42: second plain washer

51; First fixing washer

52; Second fixing washer

53: third fixing washer

54: fourth fixing washer

70; nut

In order to achieve the above object, the present invention provides a hinge device for adjusting the inclination angle of a flat display device, comprising a horizontal plane portion parallel to and fixed to the rear surface of the display device and a vertical plane portion perpendicular to the horizontal plane portion, the vertical plane A first movable plate having a through hole formed therein; A second fixing plate connected to the stand of the display device and having a vertical surface portion parallel to the vertical surface portion of the first plate and a horizontal surface portion vertical to the vertical surface portion, the upper fixing through hole formed in the vertical surface portion; A hinge shaft coupled to the through holes of the first and second plates, the hinge shaft comprising a head portion having a larger shaft diameter than the shaft portion and a shaft portion having a screw portion formed at an end thereof; A coupling member fixedly coupled to the end of the hinge shaft; A first flat washer disposed between the head portion of the hinge shaft and the vertical surface portion of the first movable plate; First and second fixing washers fixedly coupled to both sides of the through hole of the first plate; And third and fourth fixing washers fixedly coupled to both sides of the through hole of the second plate, wherein at least one of the first, second, third and fourth fixing washers applies an axial compressive elasticity. Provided is a hinge device for a video display device.

According to one embodiment of the invention, the first movable plate is further provided with a bent projection on the upper end side of the through hole, the second fixing plate is a bent type of the first plate on the upper side of the through hole opened upwards It is characterized in that it further comprises a turning guide of a predetermined turning angle range in which the projection is moved along the path pivoted about the hinge axis.

According to one embodiment of the invention, the first plate has a locking groove is formed in a portion parallel to the hinge axis, one end is fixed to the locking groove of the first plate and the other end is fixed to the fixing hole of the second plate And a coil spring member that provides a turning direction elastic resistance force in the relative rotation between the first plate and the second plate around the hinge axis.

According to an embodiment of the present invention, the first, second, third and fourth fixing washers are provided with one or more fixing protrusions, and the fixing protrusions of the fixing washers are formed around the through holes of the first and second plates. It is characterized in that the fixing hole is fixed.

According to an embodiment of the present invention, one of the third and fourth fixing washers includes an upper fixing protrusion having a width slightly smaller than the upper opening of the through hole of the second plate, and the upper fixing protrusion is fixedly coupled to the first fixing protrusion. The fixing hole of the two plate is characterized in that the upper opening of the through hole.

According to one embodiment of the invention, the coupling member is characterized in that the nut.

According to one embodiment of the invention, the first washer is characterized in that it has an oil-impregnated groove in the portion in contact with the adjacent element to prevent wear between the adjacent elements and to ensure smooth pivotal movement.

According to one embodiment of the invention, at least one of the fixing washers is characterized in that the portion in contact with the adjacent element is provided with an oil-impregnating groove that prevents wear between adjacent elements and ensures smooth swing movement.

According to one embodiment of the present invention, the elastic washer is characterized in that the washer of the roughly hemispherical shape having a fixing projection.

According to an embodiment of the present invention, the elastic washer is a fourth fixed washer adjacent to the coupling member, and the coupling member is a washer-type nut.

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

2 is a view showing a state in which a hinge device for a video display device according to an embodiment of the present invention is assembled with the coil spring member excluded. This figure shows only one side of the hinge assembly, the hinge device of the present invention is to install the hinge assembly on only one side as shown, without the need to install the same assembly as the hinge assembly on the side not shown in Figure 2 In addition, the inclination angle of the display device of the image display device can be adjusted.

As shown, the hinge device 100 according to the present invention is fixed to the hinge assembly (A) and the rear surface of the flat display device of the video display device, and the image display device side agent for fixing the hinge assembly (A). A second fixed plate connected to the first movable plate 10 and a stand for supporting the display device on the floor and disposed adjacent to the first movable plate so that the first movable plate can be rotated relative to each other; 20). Moving in the first plate is an expression of the meaning that the first plate can be rotated relative to the second plate, and fixing in the second plate is a relative expression of the expression moving in the first plate. It is an expression of the meaning that the second plate acts as a fixed reference point of rotation when the first plate is rotated about the hinge axis.

Since the relative rotation between the first and the second plate is a fixed support point of the second plate connected to the stand of the image display device, the first plate of the movable first plate is fixed to the hinge assembly coupled to the first and the second plate. The relative rotation is performed with respect to the two plates, and the relative rotation enables the inclination angle of the display device to be adjusted. As will be described later, at this time, the hinge assembly coupled to the first and second plates is firmly adhered to the first and second plates by applying compressive elasticity in the axial direction, so that the rotational position is maintained even when the relative rotation is performed.

3 is an exploded perspective view of the hinge device according to the present invention. According to the drawing, the first plate 10 fixedly coupled to the back of the display device of the video display device has a horizontal plane portion parallel to the rear of the display device and a vertical plane portion perpendicular to the horizontal plane portion, the hinge axis of the vertical plane portion The hinge shaft through hole 13 is inserted.

The second plate 20 connected to the stand of the image display device includes a vertical surface portion parallel to the vertical surface portion of the first plate, and includes a through hole 23 into which the hinge shaft 30 is inserted. The through hole 23 is an open opening with an open top, which is a configuration for ease of assembly work when assembling each element of the hinge assembly. In general, when assembling the hinge assembly, the second plate is mounted after the hinge shaft is attached to the first plate. Therefore, the second plate is formed by inserting the hinge shaft into the first plate. It can be easily attached from the lower part of a hinge shaft in a state. In other words, it is easy to secure a mounting space when the hinge assembly elements are mounted, so that the installation work is convenient.

In order to limit the rotation range when the first plate is rotated relative to the second plate about the hinge axis 30, the vertical surface portion of the first plate 10 is bent upwardly through the through hole 13. A protrusion 11 is formed, and the second plate 20 cooperates with the bent stopper protrusion 11 of the first plate 10 above the vertical surface portion to limit the turning range B of the first plate. A partially arcuate stopper member 21 may be formed above the through hole 23. The partially arced path is a path along the turning radius of the bent stopper projection of the first plate which is rotated relative to the second plate 20 about the hinge axis.

The hinge shaft 30, which can use a commercially available screw, is coupled through the through holes of the first and second plates, and finally, the nut 70 as a coupling member is fastened to the screw portion at the end of the hinge shaft to complete the hinge assembly. do. The hinge shaft is composed of a head portion and a cylindrical coupling portion as a shaft portion having a smaller shaft diameter, and a screw portion is formed on the end side of the coupling portion, and the nut is screwed to the screw portion.

The hinge shaft used for the hinge device of the present invention is a conventional hinge shaft that requires chamfering such as milling, turning, and the like by using a commercial bolt composed of a hexagonal head portion 30a and a screw portion 30b. The complicated and expensive manufacturing process of parts can be omitted, which is economical and easy to manufacture.

Between the head portion of the hinge shaft and the first plate 10 and between the second plate 20 and the nut 70 to ensure close engagement with both contact members, increase frictional force and reduce wear of adjacent contact members. First and second washers (41; 42) are arranged. The first and second washers 41 and 42 may be flat washers, and may be provided with oil-impregnated holes 41a and 42a in the parts in contact with the adjacent elements to ensure wear protection and smooth pivotal movement. Such oil-impregnated holes may be installed anywhere other than the first and second washers where frictional contact between adjacent elements occurs.

As described above, since the first plate 10 is relatively rotatable relative to the second plate 20, the contact surface of the first plate and the second plate is subject to considerable wear. In order to prevent such wear, the first and second fixing washers 51 and 52 are provided on both sides of the through hole of the first plate, and the third and fourth fixing washers 53 and 54 are formed on both sides of the through hole of the second plate. ) Is placed.

Among these fixing washers, in particular, the third and fourth fixing washers 53 and 54 fixed to the second plate 20 have a hinge axis coupled to the second plate, in addition to the wear protection function of the plate. In addition, the function of fixing the upper opening of the through hole 23) is not performed.

In order to securely engage the first and second fixing washers 51; 52 with respect to the first plate 10, the first and second fixing washers 51; 52 are provided with protrusions 51a and 52b circumferentially circumferentially. In the first plate, fixing holes 15a and 15b through which the bending protrusions 51a and 52b are fitted are formed around the through hole 13. In this case, since the bending protrusion and the fixing hole need only correspond to each other, the number and position thereof can be freely changed.

For the fixed engagement of the third and fourth fixing washers 53; 54 to the second plate 20, the third and fourth fixing washers 53; 54 are provided with protrusions 53a; 54a circumferentially. In the second plate, fixing holes 25a through which the bending protrusions 53a and 54a are fitted are formed around the through hole 23. According to the preferred embodiment shown in the drawing, the third fixing washer 53 has one bending protrusion 53a on the upper side, and the bending protrusion 53 is configured to be fitted into the upper opening portion of the through hole 23. . Therefore, the width A of the bent portion of the bent projection 53a substantially matches the width of the upper opening of the through hole 23 of the second plate. Although not shown, the third fixing washer 53 may further include a bending protrusion (not shown) fixedly coupled to the lower fixing hole 25b of the second plate. In this case, since the bending protrusion and the fixing hole need only correspond to each other, the number and position thereof can be freely changed, and in the same context, two fixing washers fixed to both sides of one plate may be arranged opposite to each other. .

At least one of the above-described fixed washers 51; 52; 53; 54 simultaneously serves as an elastic washer that causes axial compression elasticity in the hinge assembly. In this case, the elastic washer is formed in a substantially hemispherical or disc shape, and the compression force of the nut causes the compression elasticity in the hinge axis direction to securely maintain the engagement of the hinge assembly. According to a preferred embodiment of the present invention, such an elastic washer is applied to the fourth fixed washer 54, but none of the other first, second and third fixed washers 51; 52; 53 are axially compressible. Elastic washers 51 '; 52'; 53 'having a function. When the fourth fixing washer 54 is applied as an elastic washer, the second washer 42 and the nut 70 subsequently disposed on the fourth fixing washer 54 have a single washer-type nut 70 having an integral structure. ') Can be used. The application of the washer-type nut 70 'having the washer portion 70a' eliminates the need for the second flat washer 42, thereby reducing the number of parts.

4 is a perspective view of a hinge device according to another embodiment of the present invention, in which a coil spring member is installed, unlike FIGS. 2 and 3, and FIG. 5 is an exploded perspective view of the hinge device of FIG. As shown, the coil spring member 60 useful for adjusting the inclination angle of the large display device in the direction of the nut 70 from the second plate 20 can be installed. This is because, in the case of a large display device having a heavy weight, the hinge assembly may not be firmly held on the first and second plates only by the tightening force of the nut and the compressive elastic force by the elastic washer. When rotating (that is, adjusting the inclination angle of the display device), it causes elastic resistance in the turning direction to effectively support the heavy display device. For installation of the coil spring member 60, the first plate 10 is provided with a locking groove 16 in a horizontal surface portion perpendicular to the vertical surface portion and parallel to the hinge axis direction, the coil spring in the locking groove 16 One end 60b of the member 60 is fixed. The other end 60a of the coil spring member is provided to engage the fixing hole 25b of the second plate. At this time, the fixing hole 25b of the second plate is intended to be simultaneously coupled to the bending protrusion of the fixing washer.

While various embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications are possible within the understanding of those skilled in the art.

According to the above-described configuration, the present invention can use a commercial bolt without using the special hinge shaft of the chamfered form, in order to solve the problems of the prior art described above, so that the plate of the hinge assembly is not worn by the relative rotation, It is assembled to the chamfered hinge shaft to adjust the inclination angle of the display device without using a separate part that restricts the turning position of the hinge shaft, and provides a hinge device that has excellent hinge function, good assembly ability, and reduces manufacturing cost. do.

Claims (13)

A hinge device for adjusting the inclination angle of a flat panel display device, comprising: a first movable plate having a horizontal surface portion parallel to and fixed to a rear surface of the display device and a vertical surface portion perpendicular to the horizontal surface portion, and having a through hole formed therein; ; A second fixing plate connected to the stand of the display device and having a vertical surface portion parallel to the vertical surface portion of the first plate and a horizontal surface portion vertical to the vertical surface portion, the upper fixing through hole formed in the vertical surface portion; A hinge shaft coupled to the through holes of the first and second plates, the hinge shaft comprising a head portion having a larger shaft diameter than the shaft portion and a shaft portion having a screw portion formed at an end thereof; A coupling member fixedly coupled to the end of the hinge shaft; A first flat washer disposed between the head portion of the hinge shaft and the vertical surface portion of the first movable plate; First and second fixing washers fixedly coupled to both sides of the through hole of the first plate; And third and fourth fixing washers fixedly coupled to both sides of the through hole of the second plate, wherein at least one of the first, second, third and fourth fixing washers applies an axial compressive elasticity. The hinge device for a video display apparatus characterized by the above-mentioned. According to claim 1, wherein the first movable plate is further provided with a bent projection on the upper end of the through hole, the second fixing plate is hinged by the bent projection of the first plate on the upper end of the through hole is open upwards And a turning guide having a predetermined turning angle range which is moved along a path turning about an axis. According to claim 1, The first plate has a locking groove is formed in a portion parallel to the hinge axis, one end is fixed to the locking groove of the first plate and the other end is fixed to the fixing hole of the second plate, the hinge And a coil spring member for providing a resilient direction of rotational elasticity during relative rotation between the first plate and the second plate about an axis. The fixing washer according to any one of claims 1 to 3, wherein the first, second, third and fourth fixing washers have one or more fixing protrusions, and the fixing washers are disposed around the through holes of the first and second plates. The hinge device for a video display device, characterized in that the fixing hole is fixed to the fixing projection of the formed. 5. The method of claim 4, wherein one of the third and fourth fixing washers has an upper fixing protrusion having a width slightly smaller than the upper opening of the through hole of the second plate, wherein the upper fixing protrusion of the second plate is fixedly coupled. And the fixing hole is an upper opening of the through hole. delete delete The hinge device for a video display device according to any one of claims 1 to 3, wherein the coupling member is a nut. delete The hinge device for a video display device according to claim 1, wherein the first flat washer has an oil-impregnating groove for preventing abrasion between adjacent elements and providing a smooth turning movement at the contact portions between adjacent elements. 4. A method according to any one of claims 1 to 3, characterized in that at least one of the fixing washers is provided with an oil impregnation groove in the contact portion between the adjacent elements to prevent wear between adjacent elements and to provide a smooth turning movement. Hinge device for video display equipment. 4. The hinge device according to any one of claims 1 to 3, wherein the elastic washer is a substantially hemispherical washer having a fixing protrusion fixed to a plate. 13. The hinge device of claim 12, wherein the elastic washer is a fourth fixed washer adjacent the engagement member, and the engagement member is a washer-type nut.