KR200352373Y1 - A flat torque hinge - Google Patents

Abstract

The present invention is a simple configuration to give a pipe spring to the ordinary flat hinge, has a constant torque when opening and closing the door smoothly, the door opening and closing operation proceeds smoothly, and thus the main body and the door is not shocked by the opening and closing operation It relates to a flat torque hinge which is protected and which significantly improves the functionality and usability of the flat hinge.

The present invention for realizing this is a door side bracket protruding the insertion tube for inserting the shaft on one side of the plate portion, and the body side bracket protruding the insertion tube formed in series with the insertion tube of the door side bracket And a shaft configured to penetrate each insertion tube of the door side bracket and the main body side bracket, wherein the shaft is provided with a pipe spring. The inner diameter is fixed, the pipe spring is coupled to the portion of the shaft located in the insertion tube of the door side bracket, the pipe spring is supported by the insertion tube of the door side bracket, the shaft and the body side The bracket is coupled to be integrated.

Description

Flat Torque Hinges {A FLAT TORQUE HINGE}

The present invention relates to a hinge, in particular, a simple configuration to give a pipe spring to the ordinary flat hinge, has a constant torque when opening and closing the door smoothly opening and closing operation and accordingly the main body and door to the opening and closing operation The present invention relates to a flat torque hinge that is protected by no impact, and which significantly improves the functionality and usability of the flat hinge.

In general, the hinge device is essentially accompanied by a structure in which the opening and closing operation of the door is performed, and has been variously developed in a direction in which the opening and closing operation is smooth by having a torque in the opening and closing rotation operation.

The torque generating structure of the hinge device is generally made using the elasticity and friction structure of the spring, and is mainly applied to the hinge device mounted on precision products such as electronic products, contributing to the improvement of product safety and the feeling of use.

However, the flat hinge 100, which is a hinge device mounted to a door such as general furniture or kitchen furniture, still has the shaft 130, as shown in Fig. 6 (a) and a front (b). The main body side bracket 120 having the insertion tube 123 into which the shaft is fitted to the flat plate 121 fixed to the main body side, and the insertion tube into which the shaft is inserted into the flat plate 111 fixed to the door ( 113 is formed of a door side bracket (110).

The brackets 110 and 120 on the door side and the body side have an advantage that the insertion pipes 113 and 123 are usually formed by bending a part of the flat plate portions 111 and 121 to be extremely simple in configuration.

However, such a conventional technology allows the door side bracket to rotate freely around the shaft to simply open and close the door, and does not have any elasticity due to the opening and closing operation. There is a problem in that the feeling of use is lowered and the dignity of the product is hinged.

The present invention has been devised to solve the above problems,

The object of the present invention is a simple configuration for providing a pipe spring to the ordinary flat hinge, has a constant torque when the door opening and closing rotation smoothly opening and closing the door and the body and the door is protected from impact In addition, the present invention provides a flat torque hinge that significantly improves the functionality and usability of the product to be mounted.

1 is an exploded perspective view showing the configuration of an embodiment according to the present invention

2 is an assembled perspective view of FIG.

3 is a plan view of FIG.

4 is an enlarged cross-sectional view taken along the line A-A of FIG.

5 is an exploded perspective view showing the configuration of another embodiment according to the present invention

Fig. 6 is a configuration diagram of the prior art, in which a is a plan sectional view and b is a forward sectional view.

*** Explanation of symbols for the main parts of the drawings

1: Flat torque hinge 10,10 'of the present design: Door side bracket

11: Reputation Department 13: Insertion Tube

13a: groove 13b: lubricant filling hole

15: Welded portion 20, 20 ': Body side bracket

21: plate 23: inserting tube

23a: fixing groove 30: shaft

33: kiibu 33a: plane

35: spline protrusion 40: pipe spring

41: opening 43: stopper protrusion

45: lubricant filling hole 50: key ring

51: keyhole 53: projection

60: cover 100: prior art flat hinge

Flat torque hinge according to the present invention to achieve the above object,

A door side bracket on which an insertion tube for fitting the shaft is projected to one side of the flat plate portion on which the fastening hole is formed, and an insertion tube formed in series with the insertion tube of the door side bracket; In the flat hinge is composed of a shaft fitted through the insertion tube of the door side bracket and the main body side bracket,

A pipe spring is provided to the shaft.

As an embodiment according to the present invention,

The insertion tube of the door side bracket has a fixed inner diameter, and the pipe spring is coupled to a portion of the shaft positioned in the insertion tube of the door side bracket, and the pipe spring is supported by the insertion tube of the door side bracket. The shaft and the main body side bracket are combined to be integrated.

Hereinafter, an embodiment of the flat torque hinge of the present invention will be described in more detail with reference to the accompanying drawings.

1 is an exploded perspective view showing the configuration of an embodiment according to the present invention, Figure 2 is a perspective view of the combination of Figure 1, Figure 3 is a cross-sectional view of Figure 2, Figure 4 is an enlarged cross-sectional view taken along line A-A of FIG.

As shown in Figures 1 to 4, the flat torque hinge 1 of the embodiment according to the present invention, the insertion tube 13 for fitting the shaft to one side of the flat plate portion 11 is formed with a fastening hole (11a) The protruding door side bracket 10 and the insertion tube 23 which forms a series with the insertion tube 13 of the door side bracket 10 protrude to the flat part 21 in which the fastening hole 21a is formed. It consists of a main body side bracket 20, and the shaft 30 which is fitted through the insertion tube 13, 23 of the door side bracket 10 and the body side bracket 20, the shaft ( 30, the pipe spring 40 is provided.

Here, the insertion tube 13 of the door side bracket 10 is fixed in the size of the inner diameter, the opening portion 41 is located in the portion located in the insertion tube 13 of the door side bracket of the shaft 30 The formed pipe spring 40 is coupled, the pipe spring 40 is supported by the insertion tube 13 of the door side bracket, the shaft 30 and the body side bracket 20 is coupled to be integrated desirable.

In addition, the pipe spring 40 is tightly coupled to the shaft.

The insertion tube 13 of the door side bracket 10 and the insertion tube 23 of the body side bracket 20 are formed by bending a portion of the flat plate portion. As described above, in the insertion tube 13 formed by bending the flat plate, the bending end is not fixed so that torque is generated differently according to the opening and closing rotation directions. Therefore, the bending end of the insertion tube 13 may be fixed to the flat plate 11, the end of the bending so that the torque in the opening and closing rotation direction evenly generated.

In addition, one or more stopper protrusions 43 are formed in the pipe spring 40 in the longitudinal direction, and grooves 13a corresponding to the stopper protrusions 43 are formed in the insertion tube 13 of the door side bracket. The pipe spring 40 is assembled to move integrally with the door side bracket 10.

The stopper projection 43 of the pipe spring is located in the opposite direction of the opening portion 41, that is, in the center of the outer circumferential surface of the pipe spring 40, so that the pipe spring according to the opening and closing direction of the door-side bracket 10 rotates. The curling and thus the torque are caused to occur equally.

In addition, the groove (13a) formed in the insertion tube 13 of the door side bracket is formed from one side end to the stopper protrusion 43 of the pipe spring engaging position.

In this configuration, the pipe spring 40 is inserted through one end of the groove 13a and the insertion progress is stopped by the stopper protrusion 43 at the position where the groove 13a is blocked to guide the assembly position.

It is preferable that lubricant filling holes 45 and 13a are formed through the pipe spring 40 and the insertion tube 13 of the door side bracket 10, respectively.

In addition, a key portion 33 having a diameter reduced at both ends of the shaft 30 and a plane 33a formed on an outer circumferential surface thereof is formed, and the key portions 33 corresponding to the key portion 33 are formed at both key portions 33. The key ring 50 is formed and the key ring 50 having the anti-rotation protrusion 53 formed on the outer circumference thereof is coupled, and the protrusion 53 of the key ring is formed at both ends of the insertion pipe 23 of the main body side bracket 20. It is preferable that the fixing groove 23a is formed to be inserted. Such a configuration allows the shaft 30 and the main body side bracket 20 to be integrated so that the rotation of the shaft 30 is prevented even when the pipe spring 40 is rubbed.

The key ring protrusion 53 and the insertion groove 23a of the insertion tube are formed to face each other, and the protrusion 53 and the fixing groove 23a are connected to the key ring 50 to prevent the key ring 50 from being separated. Caulking is preferably made.

The door side bracket 10 and the main body side bracket 20 shown in FIGS. 1 to 4 are formed using a press method.

5 is an exploded perspective view showing another embodiment according to the present invention.

As shown in FIG. 5, the door side bracket 10 'and the main body side bracket 20' according to the present invention have flat plate portions 11, 21, and insertion tubes 13, 23, respectively. It may be formed integrally by die casting.

The brackets 10 'and 20' manufactured by the die casting method as described above are inserted into the insertion pipes 13 and 23 without clearance therebetween, so that internal diameter deformation such as gaps or expansions is blocked.

In addition, an opening portion 41 is formed in the pipe spring 40, and protrudes in the longitudinal direction to be coupled to the opening portion 41 of the pipe spring 40 on one side of the inner circumferential surface of the insertion tube of the door side bracket 10. A step 13c may be formed (see FIG. 5).

This configuration allows the pipe spring 40 to support the insertion pipe 13 at two points of the groove 13a and the protruding end 13c, thereby making curling stable, and in particular, preventing backlash due to wear. .

In addition, a spline groove 23b is formed at an inner circumference of the one side insertion tube 23 of the main body side bracket 20, and the shaft 30 has a spline groove 23b of the body side bracket insertion tube at one end. A spline protrusion 35 corresponding to the main body side bracket 10 and the key may be coupled (see FIG. 5).

The door side bracket 10 and the main body side bracket 20 may be provided with support portions 17 and 27 for receiving the corresponding insertion tubes, respectively (see FIG. 5).

Each of the flat plate portions 11 and 21 of the door side bracket 10 and the main body side bracket 20 may be provided with a cover 60 that can be detached by uneven coupling (see FIG. 5).

The cover 60 has one or more protrusions 61 at the edges of the cover 60 and the cover coupling grooves 19 corresponding to the protrusions 61 at the plate portions 11 and 21 of the bracket for detachable coupling of the cover 60. (29) is preferably formed.

Such a cover 60 makes the exterior beautiful by covering the flat plate that is the part to which the bolt is fastened.

Look at the working state of the flat torque hinge (1) according to the present invention having such a configuration.

The shaft 30 is fixed to the main body side bracket 20 by the key ring 50 so that the shaft 30 is prevented from rotating, and the pipe spring 40 has the stopper protrusion 43 with the door side bracket ( 10 is held by the insertion tube 13 and the groove 13a. When the door side bracket 10 is rotated according to the door opening / closing operation, the inner circumferential surface of the pipe spring 40 rotates on the shaft 30 and is rubbed. This causes the curling of the pipe spring 40.

The curling of the pipe spring 40 allows the door side bracket 10 to have a constant torque to reduce the rotational speed and to move at a gentle speed.

Therefore, the door on which the door side bracket 10 is mounted is smoothly opened and closed so that it is not subjected to the shock that may occur when the door is opened and closed and improves the usability.

Here, when the protruding end 13c is formed on the inner circumferential surface of the door-side bracket insertion tube 13 as shown in FIG. 5, the curling is stable by holding the pipe spring 43 at two places and prevents backlash. .

Meanwhile, the lubricant is introduced through the lubricant filling hole formed in the door bracket bracket tube 13 and the pipe spring 40 so that the friction between the shaft 30 and the pipe spring 40 is made smoothly. Make this possible.

In the above, preferred embodiments of the present invention have been described with reference to the accompanying drawings. Here, the terms or words used in the present specification and claims should not be construed as being limited to ordinary or dictionary meanings, but should be construed as meanings and concepts corresponding to the technical spirit of the present invention. Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical ideas of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

As described in detail above, the flat torque hinge according to the present invention,

By providing pipe springs to ordinary flat hinges, the pipe springs have a constant torque due to the friction caused by the pipe springs on the shaft during door opening and closing rotation, so that the door opening and closing operation proceeds smoothly, thereby preventing the main body and the door from being impacted. It is a technology having the advantage of significantly improving the functionality and usability.

Claims (11)

A door side bracket (10) in which an insertion tube (13) for fitting a shaft is formed on one side of the plate portion (11) on which the fastening hole (11a) is formed, and an insertion tube (13) of the door side bracket (10); A series of insertion pipes 23 protrude from the flat plate portion 21 on which the fastening holes 21a are formed, and each of the door side bracket 10 and the body side bracket 20. In the flat hinge consisting of a shaft 30 fitted through the insertion tube 13, 23, Flat torque hinge, characterized in that the shaft is given a pipe spring (40). The method of claim 1, Insertion pipe 13 of the door-side bracket 10 is the size of the inner diameter is fixed, The pipe spring 40 is coupled to a portion located in the insertion tube 13 of the door side bracket of the shaft 30, The pipe spring 40 is supported by the insertion tube 13 of the door side bracket Flat shaft hinge, characterized in that the shaft (30) and the main body side bracket 20 is coupled to be integrated. The method according to claim 1 or 2, The insertion tube 13 of the door side bracket 10 and the insertion tube 23 of the body side bracket 20 are formed by bending a portion of the flat plate portion. The insertion tube 13 of the bending-shaped door side bracket 10 is a flat torque hinge, characterized in that the bending end is welded to the flat plate so that torque in the opening and closing rotation direction is generated evenly. The method according to claim 1 or 2, The pipe spring 40 is formed with at least one stopper protrusion 43 in the longitudinal direction, A flat torque hinge, characterized in that a groove (13a) corresponding to the stopper protrusion (43) is formed in the insertion tube (13) of the door side bracket. The method according to claim 1 or 2, Flat pipe hinges, characterized in that the through-filling pipe (40) and the insertion pipe (13) of the door bracket (10) through the lubricant filling holes (45, 13b), respectively. The method according to claim 1 or 2, At both ends of the shaft 30, a diameter is reduced and a key portion 33 having a plane formed on an outer circumferential surface thereof is formed. Key holes 50 corresponding to the key part 33 are formed in both side key parts 33, and a key ring 50 having an anti-rotation protrusion 53 formed on an outer circumference thereof is coupled thereto. Flat torque hinge, characterized in that the fixing groove (23a) for inserting the projection 53 of the key ring is formed at both ends of the insertion tube (23) of the main body side bracket (20). The method of claim 6, Projection 53 of the key ring and the fixing groove (23a) of the insertion tube is formed in a pair to face, Flat torque hinge, characterized in that the connecting portion of the projection 53 and the fixing groove (23a) is caulking to prevent the key ring (50) from being separated. The method of claim 4, wherein The groove (13a) formed in the insertion tube (13) of the door-side bracket starting from one side, the plate torque hinge, characterized in that formed to the stopper projection 43 of the pipe spring engaging position. The method according to claim 1 or 2, The door side bracket (10 ') and the body side bracket (20') is a flat torque hinge, characterized in that the flat plate portion (11) (21) and the insertion tube (13) (23) are formed integrally by die casting. The method according to claim 1 or 2, Opening portion 41 is formed in the pipe spring 40, Flat torque hinge, characterized in that the protruding end (13c) is formed in the longitudinal direction on one side of the inner peripheral surface of the insertion tube of the door-side bracket (10) to be coupled to the opening (41) of the pipe spring (40). The method according to claim 1 or 2, Spline grooves 23b are formed on the inner circumference of the one side insertion tube 23 of the main body side bracket 20, The shaft 30 is a flat torque hinge, characterized in that the spline protrusion (35) corresponding to the spline groove (23b) of the main body side bracket insertion tube is formed at one side end is coupled to the main body side bracket (10).