KR101471159B1 - Door hinge - Google Patents

Abstract

The present invention relates to a door hinge. And particularly, the door hinge can prevent a door from becoming slack by pressurizing a rotation pin to be mounted on a door frame. Therefore, the present invention in order to solve the problem is to provide the door hinge capable of preventing a door from becoming slack by pressurizing the rotation pin mounted on the door frame. According to the present invention, the door hinge (10) is installed between the door frame (D) and a support frame (F).

Description

DOOR HINGE

The present invention relates to a door hinge, and in particular, it is possible to prevent a door from sagging by pressing a pivot pin mounted on a door frame.

Generally, as is well known, a door includes a door frame D on which a glass or the like is mounted, and a support frame F on which the door frame D is supported (see FIG. 1).

The door frame F may include an upper support frame F1 disposed on the door frame D and a lower support frame F2 disposed on the lower portion of the door frame D.

At this time, a portion of the door frame (D) is provided with a hinge, which rotates about the portion where the hinge is installed, thereby opening and closing the door frame (D).

However, there is a problem that one side of the door frame D is lowered by the weight of the door frame D depending on use, and is inclined as a whole.

On the other hand, the above-described door-related configuration itself is well-known technology and is described in detail in the following prior art documents, so that redundant description and illustration are omitted.

(Document 1) Korean Patent Publication No. 10-2009-0036726 (Document 2) Korean Patent No. 10-1109624 (Document 3) Korean Utility Model Registration No. 20-0170546

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a door hinge for preventing the door from sagging by pressing a pivot pin mounted on the door frame.

In order to accomplish the above object, the present invention provides a door hinge (10) installed between a door frame (D) and a support frame (F), wherein the door hinge (10) An upper door hinge 100 disposed between the bottom surface of the upper support frame F1 disposed at an upper portion of the frame D and a lower door hinge 100 disposed at a lower side of the door frame D and a lower portion of the door frame D And a lower door hinge 200 installed between upper surfaces of the lower support frame F2 so that the upper door hinge 100 and the lower door hinge 200 are supported by the fixing rings 140 and 240 And one side of which is rotatably mounted on the support frame F and the other side includes pivot pins 110 and 210 which are inserted into the fixing rings 140 and 240 and are installed on one side of the fixing rings 140 and 240 Further comprising a pressing portion (142, 242) for pressing the inserted pivot pin (110, 210), wherein the pivot pin 210 has a rotary pin body 211 rotatably installed on one side of the lower support frame F2 and a bar shape protruding from one side of the upper surface of the rotary pin body 211 and inserted into the fixing ring 240 Shaped support plate 213 which is formed between the insertion bar 212 and the rotation pin body 211 and contacts the bottom surface of the fixing ring 240 and the upper surface of the lower support frame F2, , Wherein the fixing ring (240) is fixed to a part of the bottom surface of the door frame (D), and has a ring shape and has a fixing ring body (241) into which the insertion bar (212) is inserted, And a pressing portion 242 provided on one side of the stationary ring body 241 to press the insertion bar 212 of the pivot pin 210.

The door hinge 10 is disposed between the door frame D and the support frame F so that the door hinge 10 is positioned between one side of the upper surface of the door frame D and the door frame D, An upper door hinge 100 installed between the bottom surface of the upper support frame F1 disposed at an upper portion of the door frame D and a lower support frame The upper door hinge 100 and the lower door hinge 200 include fixing rings 140 and 240 fixed to the door frame D and a lower door hinge 200 installed between upper surfaces of the upper door hinge 100 and the lower door hinge 200. [ And the other side of which is rotatably installed in the support frame F and the other side of which is inserted into the fixing rings 140 and 240. The fixing pins 140 and 240 are installed on one side of the fixing rings 140 and 240, The door hinge further includes pressing portions 142 and 242 for pressing the pins 110 and 210.

The pivot pin 110 of the upper door hinge 100 includes a pivot pin main body 111 rotatably installed at one side of the upper support frame F1 and a pivot pin main body 111 pivotally installed at a side of the bottom surface of the pivot pin main body 111 And a bar-shaped insertion bar 112 protruding from the upper surface of the door frame D and inserted into the fixing ring 140. The fixing ring 140 is fixed to a portion of the upper surface of the door frame D, And a pressing part 142 installed on one side of the fixing ring body 141 and pressing the insertion bar 112 of the rotation pin 110. The fixing ring body 141 has a pressing part 142, And an upper fixing cap 120 and a lower fixing cap 130 which are disposed on the fixing ring 140 and into which the pivot pin main body 111 is inserted, (130) is disposed in the vertical direction of the pivot pin body (111), and the upper fixed cap (120) and the lower fixed cap The upper fixing cap body 121 and the lower fixing cap body 131 protrude in a plate shape from a part of the outer circumferential surface of the upper fixing cap body 121 and the lower fixing cap body 131, And an upper attachment plate 122 and a lower attachment plate 132 which are respectively installed on one side of the upper support frame F1.

It is also possible to further include a bearing (BRG) disposed between the support plate 213 and the stationary ring 240.

The pressing portions 142 and 242 may be screwed into the side surfaces of the stationary ring bodies 141 and 241.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings.

Prior to that, terms and words used in the present specification and claims should not be construed in a conventional and dictionary sense, and the inventor may properly define the concept of the term in order to best explain its invention It should be construed as meaning and concept consistent with the technical idea of the present invention.

According to the present invention, it is possible to prevent the door from sagging by pressing the pivot pin mounted on the door frame.

1 is a sectional view of a door hinge according to an embodiment of the present invention,
FIGS. 2A and 2B are conceptual diagrams illustrating a case where the door frame is normal and a case where the door frame is sagged;
3 and 4 are an assembled perspective view and an exploded perspective view of an upper door hinge according to an embodiment of the present invention,
5 and 6 are an assembled perspective view and an exploded perspective view of a lower door hinge according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation.

In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

In addition, the following embodiments are not intended to limit the scope of the present invention, but merely as exemplifications of the constituent elements set forth in the claims of the present invention, and are included in technical ideas throughout the specification of the present invention, Embodiments that include components replaceable as equivalents in the elements may be included within the scope of the present invention.

FIG. 1 is a cross-sectional view of a door hinge according to an embodiment of the present invention when the door hinge is coupled to a door frame and a support frame. FIG. 2a and FIG. 3 and 4 are an assembled perspective view and an exploded perspective view of an upper door hinge according to an embodiment of the present invention, and FIGS. 5 and 6 are perspective views of a lower door hinge according to an embodiment of the present invention. A combined perspective view and an isolated perspective view.

Example

The door hinge 10 according to an embodiment of the present invention is installed between a door frame D and a support frame F as shown in Fig. 1 and includes a stationary ring R fixed to the door frame D, And a pivot pin (P) rotatably installed on the support frame (F) at one side and inserted into the stationary ring (R) at the other side.

At this time, a pressing portion (S), which is provided on one side of the fixing ring (R) and presses the inserted pivot pin (P), is pressed by the pressing portion (S) The relative angle of the stationary ring R is adjusted to prevent sagging of the door.

That is, as shown in Fig. 2A, the center of the stationary ring R and the pivot pin P coincide with each other in a state in which the door frame D does not sag.

When the door frame D is sagged, the fixing ring R fixed to the door frame D is inclined relative to the rotation pin P as shown in FIG. 2B.

When the left side portion of the door frame D is sagged, the door frame D and the stationary ring R are moved relative to the pivot pin P of the hinge 10 disposed on the right side of the door frame D, Is inclined at a specific angle [theta].

At this time, the fixing ring R is not tilted with respect to the pivot pin (P), thereby preventing sagging of the door frame (D).

1, a stationary ring R fixed to the door frame D and a pressing portion S provided on the stationary ring R, Is rotatably installed on the frame (F) and the other side is inserted into the stationary ring (R).

That is, when the fixing ring R is inclined at a predetermined angle with respect to the pivot pin P by sagging of the door frame D, the fixing ring R disposed on the upper surface of the door frame D as shown in Fig. ) Presses the pivot pin (P) in the left direction in the drawing. The pressing portion S2 on the left side of the stationary ring R disposed on the lower side of the door frame D presses the rotating pin P in the right direction in the figure.

At this time, since the rotation pin (P) is fixed, the stationary ring (R) moves in the clockwise direction relatively to return to the normal state (FIG. 2A) will be.

Hereinafter, the present invention will be described in detail with reference to examples.

The door hinge 10 of the present invention may include an upper door hinge 100 and a lower door hinge 200 as shown in FIGS. 1 and 3 to 6.

The upper door hinge 100 is installed between one side of the upper surface of the door frame D and the lower surface of the upper support frame F1 disposed on the upper side of the door frame D, Is provided between the lower surface of the door frame (D) and the upper surface of the lower support frame (F2) disposed below the door frame (D).

That is, the hinges 100 and 200 are installed on the upper and lower portions of the door frame D, respectively, so that the door frame D is rotated while being supported by the support frame F.

The upper door hinge 100 and the lower door hinge 200 have fixing rings 140 and 240 fixed to the door frame D so that one side is rotatably installed on the supporting frame F, And pivot pins (110, 210) inserted into the fixed rings (140, 240).

At this time, the pressing rings 142 and 242 are installed on one side of the fixing rings 140 and 240 and press the inserted pivot pins 110 and 210, respectively.

That is, the fixing ring 140 of the upper door hinge 100 is installed on the upper surface of the door frame D, and one side (upper case in FIG. 1) of the rotation pin 110 is rotatable And the other side (the lower side in the case of FIG. 1) of the pivot pin 110 is inserted into the stationary ring 140. As shown in FIG.

Similarly, the fixing ring 240 of the lower door hinge 200 is installed on the bottom surface of the door frame D so that one side (the lower side in FIG. 1) of the rotation pin 210 is rotatable to the lower supporting frame F2 And the other side (the upper side in the case of FIG. 1) is inserted into the fixing ring 240.

With this configuration, when the door frame D rotates, the fixing ring 140 of the upper door hinge 100 rotates in conjunction with the upper surface of the door frame D and is rotated by the rotation of the fixing ring 140 The pivot pin 110 can be rotated. Of course, it is also possible that the pivoting pin 110 is not coupled to the stationary ring 140 so that the stationary ring 140 is rotated without being rotated.

In the case of the lower door hinge 200, when the door frame D rotates, the fixing ring 240 of the lower door hinge 200 rotates in conjunction with the bottom surface of the door frame D, The rotation pin 210 is rotated. Of course, as described above, it is also possible to prevent the rotation pin 210 from rotating because it is not coupled to the stationary ring 240.

That is, the door frame D is rotated around a point where the upper door hinge 100 and the lower door hinge 200 are installed.

On the other hand, the fixing rings 140 and 240 are provided with pressing portions 142 and 242, respectively. The pressing portions 142 and 242 are installed on one side of the fixing rings 140 and 240 to press the pressing portions 112 and 212 of the rotating pins 110 and 210 as described above.

When the fixing rings 140 and 240 are inclined with respect to the pivot pins 110 and 210 due to deflection of the door frame D by the pressing portions 142 and 242, the door frame D can be prevented from sagging by correcting the inclination.

The pivot pin 210 of the upper door hinge 100 and the pivot pin 210 of the lower door hinge 200 form the center of rotation of the door frame D as described above, And is supported by the frame (F).

For this, the pivot pins 110 of the upper door hinge 100 may include various shapes and configurations, but as shown in FIGS. 3 to 4, the pivot pins 110 are rotatably installed on one side of the upper support frame F1 And a bar-shaped insertion bar 112 protruding from one side of the bottom surface of the rotation pin body 111 and inserted into the fixing ring 140. [

At this time, the diameter of the pivot pin main body 111 is set to be larger than the diameter of the insertion bar 112, and after the insertion bar 112 is inserted into the fixing ring 140, It is possible to contact the upper surface of the stationary ring 140 so as to stably install the stationary ring 140.

The rotary pin main body 111 may have a cylindrical shape as shown in the figure but may be rotatably mounted on the upper support frame F1 to interlock with the rotation of the door frame D As long as the rotary pin main body 111 has a shape different from that of the cylinder, it falls within the scope of the present invention.

The insertion bar 112 may have a bar shape having a rectangular cross section. However, the insertion bar 112 may be inserted into the fixing ring 140 as described above, , So long as the above-described object is achieved, the shape of the insert bar 112 is not limited to a rectangular cross-section, but is naturally within the scope of the present invention.

The fixing ring 140 is fixed to a portion of the upper surface of the door frame D and rotates in conjunction with the door frame D as described above so that the insertion bar 112 of the pivot pin 110 is inserted So that the post-pressing portion 142 presses the insertion bar 112.

As shown in FIGS. 3 to 4, a ring-shaped stationary ring body 141 into which the insertion bar 112 is inserted and a stationary ring- And a pressing part 142 installed on the side of the rotation pin 110 for pressing the insertion bar 112 of the rotation pin 110.

That is, the insertion bar 112 is inserted into the central portion of the ring-shaped stationary ring body 141, and the pressing portion 142 provided at one side of the stationary ring body 141 presses the insertion bar 112, As shown in Fig.

In this case, the pushing portion 142 can use various constructions such that the pushing portion 142 can press the insertion bar 112. However, as shown in the drawing, the pushing portion 142 may be screwed into the side surface of the stationary ring body 141 It is possible.

That is, when the pressing portion 142 is provided to penetrate the side surface of the stationary ring body 141 by screwing and then contact the insertion bar 112, the pressing portion 142 is rotated by the rotation of the insertion bar 112 To more easily push the insertion bar 112 or to stop the pressurization.

For this purpose, the pressurizing unit 142 may be a known bolt or the like, but this is merely an example for explaining the present invention. The pressurizing unit 142 is moved forward and backward by screwing to the stationary ring body 141 It will be appreciated that all other configurations are contemplated to fall within the scope of the present invention as long as the insertion bar 112 can be pressed.

It is also possible to provide a plate-like contact plate 142a at an end of the pressing portion 142 which is in contact with the insertion bar 112 to press the insertion bar 112 more stably.

In addition, a recessed portion 142b is formed on the opposite end of the pressing portion 142, that is, at an end surface of the fixing ring 140 in the outward direction, so that the pressing portion 142 can be more easily inserted It is also possible to rotate.

As described above, the upper door hinge 100 includes the fixing ring 140 and the pivot pin 110. In order to pivot the upper pivot pin 110 on the upper support frame F1, It is also possible to include an upper fixing cap 120 and a lower fixing cap 130 which are disposed on the fixing ring 140 and into which the rotating pin body 111 is inserted, (120) and the lower fixed cap (130) are arranged in the vertical direction of the pivot pin body (111).

The upper fixed cap body 120 has a hollow cylindrical upper fixed cap body 121 and a lower fixed cap main body 121. The upper fixed cap body 121 protrudes in a plate shape from a part of the outer circumferential surface of the upper fixed cap body 121, And an upper attachment plate 122 provided on the side of the upper attachment plate 122.

The lower fixed cap body 130 has a hollow cylindrical lower fixed cap body 131 and a lower fixed cap body 131 protruding in a plate shape from a portion of the outer circumferential surface of the lower fixed cap body 131, And an upper attachment plate 122 and a lower attachment plate 132. [

1, when the upper support frame F1 has a rectangular cross-sectional shape, the upper attachment plate 122 of the upper fixed cap 120 is hooked on the upper surface of the upper support frame F1, The lower attachment plate 132 of the lower fixed cap 130 is installed on the bottom of the upper support frame F2.

That is, since the upper attachment plate 122 and the lower attachment plate 132 are simply brought into contact with the upper and lower surfaces of the upper support frame F1, the rotation pin 110 can be rotated.

The upper fixed cap body 121 and the lower fixed cap body 131 are shown as hollow cylinders, but the shape of the insertion pin 112 of the pivot pin 110 can be inserted. The upper fixed cap body 121 and the lower fixed cap body 131 are formed in such a shape that the insertion bar 112 can be inserted into the upper fixed cap body 121 and the lower fixed cap body 131 as described above, 131 are of different shapes, it goes without saying that they belong to the category of the present invention.

As described above, the door hinge 10 of the present invention includes the upper door hinge 100 and the lower door hinge 200, and the lower door hinge 200 includes the door 100, A fixed ring 240 fixed to the frame D and a pivot pin 210 rotatably installed on the lower support frame F2 on one side and inserted into the fixed ring 240 on the other side.

The upper door hinge 100 has the same structure as the upper door hinge 100 except that it is provided on one side of the fixing ring 240 and includes a pressing portion 242 for pressing the inserted pivot pin 210.

The pivot pin 210 of the lower door hinge 200 includes a pivot pin main body 211 rotatably installed on one side of the lower support frame F2 and a pivot pin main body 211 pivotally supported on one side of the pivot pin main body 211 Shaped insertion bar 212 protruding from the upper portion of the upper door hinge 100 and inserted into the fixing ring 240. This is the same as the rotation pin 110 of the upper door hinge 100 described above.

The pivot pin 210 of the lower door hinge 200 is formed between the insertion bar 212 and the pivot pin body 211 so that the bottom surface of the fixing ring 240 and the upper surface of the lower support frame F2 Shaped support plate 213 contacting the plate-shaped support plate 213, respectively.

That is, in the case of the lower door hinge 200, after the upper surface of the fixing ring 240 is fixed to the bottom surface of the door frame D by welding or the like, the insertion bar 212 of the pivot pin 210 is fixed to the fixing ring 240). At this time, the support plate 213 of the pivot pin 210 is brought into contact with the bottom surface of the fixing ring 240.

Meanwhile, the pivot pin body 211 of the pivot pin 210 may be installed to be inserted into a through hole (not shown) formed on the upper surface of the lower support frame F2 as shown in Fig. 1, The bottom surface of the plate 213 is brought into contact with the upper surface of the lower support frame F2.

At this time, the diameter of the pivot pin body 211 may be made slightly smaller than the diameter of the through hole so that the pivot pin body 211 can be rotated.

The fixing ring 240 is fixed to a portion of the bottom surface of the door frame D as described above and has a ring shape and has a fixing ring body 241 into which the insertion bar 212 is inserted, And a pressing part 242 provided on one side of the upper door hinge 100 and pressing the insertion bar 212 of the pivot pin 210. Since the upper door hinge 100 is similar to the upper door hinge 100 described above,

Unlike the upper door hinge 100, the lower door hinge 200 supports the weight of the door frame D so that the door frame D can be rotated smoothly between the support plate 213 and the stationary ring 240 It is also possible to install a bearing BRG in the bearing.

This is because when the door frame D is rotated, the stationary ring 240 fixed to the door frame D rotates and the stationary ring 240 rotates on the support plate 213.

When the load of the door frame D is high, the fixing ring 240 may not smoothly rotate on the supporting plate 213. Therefore, after the bearing BRG is installed on the supporting plate 213, The stationary ring 240 can be disposed on the bearing BRG so that the stationary ring 240 can rotate smoothly.

The pressing portion 242 may be formed on the side surface of the stationary ring body 241 in a screwed manner. Since the pressing portion 242 is the same as that of the upper door hinge 100, a repetitive description will be omitted.

Meanwhile, as shown in FIG. 6, the washers 220 and 230 may be disposed on the upper and lower sides of the bearing BRG, respectively, to enable more stable rotation.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the same is by way of illustration and example only and is not to be construed as limiting the present invention. It is obvious that the modification or improvement is possible.

It is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

100: upper door hinge 110: pivot pin
120: upper fixed cap 130: lower fixed cap
140: stationary ring 142:
200: lower door hinge 210: pivot pin
220, 230: Washer 240: Retaining ring
242:

Claims (5)

delete A door hinge (10) installed between a door frame (D) and a support frame (F)
The door hinge 10 includes an upper door hinge 100 installed between one side of an upper surface of the door frame D and a lower surface of an upper supporting frame F1 disposed on the upper side of the door frame D, And a lower door hinge (200) installed between a lower surface of the frame (D) and an upper surface of a lower support frame (F2) disposed at a lower portion of the door frame (D)
The upper door hinge 100 and the lower door hinge 200 have fixing rings 140 and 240 fixed to the door frame D so that one side is rotatably installed on the supporting frame F, (110, 210) inserted into the holes (140, 240)
Further comprising a pressing part (142, 242) provided on one side of the fixing ring (140, 240) and pressing the inserted pivot pin (110, 210)
The pivot pin 210 includes a pivot pin body 211 rotatably installed on one side of the lower support frame F2 and a pivot pin protruding from one side of the upper surface of the pivot pin body 211, Shaped insertion bar 212 inserted between the insertion bar 212 and the rotary pin main body 211 to be in contact with the bottom surface of the fixing ring 240 and the upper surface of the lower support frame F2, And a support plate (213)
The fixing ring 240 is fixed to a part of the bottom surface of the door frame D and includes a fixing ring body 241 having a ring shape into which the insertion bar 212 is inserted, , And a pressing portion (242) installed on the pivot pin (210) to press the insertion bar (212) of the pivot pin (210). 3. The method of claim 2,
The pivot pin 110 of the upper door hinge 100 includes a pivot pin main body 111 rotatably installed on one side of the upper support frame F1 and a pivot pin main body 111 protruding from one side of the bottom surface of the pivot pin main body 111 And a bar-shaped insertion bar (112) inserted into the stationary ring (140)
The fixing ring 140 is fixed to a part of the upper surface of the door frame D and has a ring shape and has a fixing ring body 141 into which the insertion bar 112 is inserted, And a pressing portion (142) installed on the rotation pin (110) and pressing the insertion bar (112) of the rotation pin (110)
Further comprising an upper fixing cap (120) and a lower fixing cap (130) which are disposed on the fixing ring (140) and into which the rotating pin body (111) is inserted,
The upper fixed cap 120 and the lower fixed cap 130 are disposed in the vertical direction of the pivot pin body 111,
The upper fixing cap 120 and the lower fixing cap 130 have a hollow upper and lower fixing cap body 121 and a lower fixing cap body 131. The upper fixing cap body 121 and the lower fixing cap body 131 , And an upper attachment plate (122) and a lower attachment plate (132) protruding in the shape of a plate from one part of the outer circumferential surface of the upper support frame (F1). 3. The method of claim 2,
And a bearing (BRG) disposed between the support plate (213) and the stationary ring (240). The method of claim 3,
Wherein the pressing portions (142, 242) are screwed into the side surfaces of the stationary ring body (141, 241).

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