KR20220005708A - Door hinge device for assembly and disassembly with spring cam damping device - Google Patents

Abstract

The present invention relates to a door hinge device having a spring cam damping device, which is easy to assemble and disassemble, and more particularly to the door hinge device having a spring cam damping device, which is easy to assembly and disassemble, facilitating folding and rotation between a vertical frame of a folding door and a fixed frame installed on a wall by using a structure such as a spring cam damping device, a cover, and a fixed body in a mutual rotation connection part, allowing smooth rotation, easy assembly and use, and enabling the spring cam damping device to be built into the vertical frame to automatic close after the folding door is opened while not allowing the door to be opened by the wind, not external force, by a magnetic member after sealing. The door hinge device having a spring cam damping device that is easy to assemble and disassemble includes a fixed frame, a vertical frame, a spring cam damping device, a cover, and a fixed body.

Description

Door hinge device for assembly and disassembly with spring cam damping device

The present invention relates to a door hinge device that is easy to assemble and disassemble, which is equipped with a spring cam damping device that has a structure that can be easily folded in a door, is easy to install and use, and allows a folding speed to be adjusted.

In general, a folding door literally refers to a folding door, and it can be used as a replacement for the inner and outer walls of a building wall, and its durability is guaranteed in response to mechanical external forces. . In addition, by applying glass to the product, visibility can be secured, and due to its excellent design, it is also used for interior purposes.

In addition, the folding door opens 50% of the existing doors to 90% or more in order to utilize the space valuable, making it a spacious living space for residential use and easy access for customers for commercial use, mainly in high-class restaurants, apartments, It is a trend that is used for entrances or division doors of houses and shopping malls.

This folding door is designed to completely open the doorway in a place where there is no space to completely open the door on the outside of the doorway of the wall. It is connected by a sliding door and one end of the sliding door is connected to rotate on one side of the door frame.

In the conventional folding door, sliding doors are installed hanging from an upper frame on which an upper rail is formed, and are folded. That is, it is a structure in which the load of the sliding doors is supported by the upper frame. Therefore, in the conventional folding door, the upper frame supporting the load of the sliding doors cannot withstand the load and is bent.

In addition, the conventional folding door has a complicated construction of a connection part with a wall, a connection part between the door and the door is not smooth, and there is a problem that it is easily opened even by wind after it is closed.

Republic of Korea Patent Publication No. 10-1456898 (Registered on October 27, 2014)

The present invention has been devised to solve the above problems, and an object of the present invention is to provide a connection structure in which folding and rotation of a vertical frame and a fixed frame in a folding door is easy and easy, so that installation and use are easy, The folding door opened by external force is returned to its original state by the spring cam damping device, and when the folding door is closed, it is fixed by magnetism to prevent the problem of being opened by wind rather than external force. An object of the present invention is to provide a door hinge device that is easy to assemble and disassemble with a spring cam damping device configured to enable speed adjustment.

Other objects and advantages of the present invention will be set forth below and will be learned by way of example of the present invention. Further, the objects and advantages of the present invention may be realized by means and combinations indicated in the claims.

The present invention is a means for solving the above problems,

It is applied to the folding door 10 that is rotatably connected to the side of the door 11 by a hinge to be folded and opened, and is installed to correspond to the wall W, and a plurality of first fixing pieces 21 are provided on the upper surface. The formed fixed frame 20; a vertical frame 30 of the door 11 that is rotatably coupled to one side of the fixing frame 20, has an insertion hole 34 perforated on one side, and has a second fixing piece 31 formed on its upper surface; In the corner installation space 33 of the vertical frame 30 and the horizontal frame 40, a hinge shaft T is protruded upward, and is vertically installed in the vertical frame 30 in the longitudinal direction to rotate to one side. A spring cam damping device 50 that is installed so that automatic return to the original position is possible afterward, so that a hinge for rotating the door 11 is not required; The cover 60 is coupled to the upper surface of the spring cam damping device 50 in the installation space 33 and has a hole in the center through which the hinge shaft T protrudes; One end is positioned to correspond to the upper surface of the cover 60 , and the hinge shaft T is fitted into the insertion hole 73 punched in the center to be fixed, and the other end is first fixed to the upper surface of the fixed frame 20 as a fixing means It is fixed to the piece 21, the upper surface of the horizontal frame 40 and the same horizontal line forming a fixing body (70); It is characterized in that it comprises a.

As described above, the present invention has an effect that the folding and rotation of the vertical frame and the fixed frame in the folding door is easy and easy.

In addition, the present invention has the effect of easy assembly and easy installation and simple structure.

In addition, according to the present invention, the automatic return of the opened folding door is possible, and after it is closed, it is not opened except by an external force of the user and has the effect of being securely fixed.

In addition, the present invention has the effect of controlling the folding speed of the door.

1 is a view of an embodiment showing a door hinge device that is easy to assemble and disassemble with a spring cam damping device according to the present invention.
2 and 3 are exploded perspective views of FIG.
4 and 5 are views of an embodiment showing a cover according to the present invention.
6 is a view of an embodiment showing a body according to the present invention.
7 is a view of an embodiment showing the coupling structure of the cover and the body according to the present invention.
8 is a view of an embodiment showing an operating structure according to the present invention.
9 is a view showing another embodiment according to the present invention.
10 is a view of an embodiment showing a coupling relationship between the upper cap and the body according to the present invention.

Before describing various embodiments of the present invention in detail, it will be understood that the application is not limited to the details of the construction and arrangement of components described in the following detailed description or shown in the drawings. The invention is capable of being embodied and practiced in other embodiments and of being carried out in various ways. Also, device or element orientation (eg, “front”, “back”, “up”, “down”, “top”, “bottom”) The expressions and predicates used herein with respect to terms such as ", "left," "right," "lateral," etc. are used merely to simplify the description of the invention, and the associated apparatus Or it will be appreciated that it does not simply indicate or imply that an element must have a particular orientation. Also, terms such as “first” and “second” are used in this application and the appended claims for the purpose of description and are not intended to indicate or imply relative importance or spirit.

In order to achieve the above object, the present invention has the following features.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, the terms or words used in the present specification and claims should not be construed as being limited to conventional or dictionary meanings, and the inventor should properly understand the concept of the term in order to best describe his invention. Based on the principle that it can be defined, it should be interpreted as meaning and concept consistent with the technical idea of the present invention.

Accordingly, the embodiments described in this specification and the configurations shown in the drawings are only the most preferred embodiment of the present invention and do not represent all the technical spirit of the present invention, so at the time of the present application, various It should be understood that there may be equivalents and variations.

Looking at an embodiment according to the present invention,

It is applied to the folding door 10 that is rotatably connected to the side of the door 11 by a hinge to be folded and opened, and is installed to correspond to the wall W, and a plurality of first fixing pieces 21 are provided on the upper surface. The formed fixed frame 20; The vertical frame 30 of the door 11 is rotatably coupled to one side of the fixing frame 20, the insertion hole 34 is perforated on one side, and the second fixing piece 31 is formed on the upper surface; In the corner installation space 33 of the vertical frame 30 and the horizontal frame 40, a hinge shaft T is protruded upward, and is vertically installed in the vertical frame 30 in the longitudinal direction to rotate to one side. A spring cam damping device 50 that is installed so that it can automatically return to its original position afterward, so that a hinge for rotating the door 11 is not required; The cover 60 is coupled to the upper surface of the spring cam damping device 50 in the installation space 33 and has a hole in the center through which the hinge shaft T protrudes; One end is positioned to correspond to the upper surface of the cover 60 , and the hinge shaft T is fitted into the insertion hole 73 punched in the center to be fixed, and the other end is first fixed to the upper surface of the fixed frame 20 as a fixing means It is fixed to the piece 21, the upper surface of the horizontal frame 40 and the same horizontal line forming the fixture 70; It is characterized in that it comprises a.

In addition, the fixed frame 20 forms a first recessed part 22 in which one side contacting the vertical frame 30 is recessed in an arc shape, and the vertical frame 30 has a first recessed part 22 . The arc-shaped first protrusion 32 corresponding to 11) It is characterized in that the perforated insertion hole 34 is not identified from the outside during sealing.

In addition, the spring cam damping device 50 is mounted in the vertical frame 20 and rotates together, the uppermost body 51 forming the same horizontal line as the vertical frame (30); A first cam ( 53); It is fixedly installed at the lower end of the first cam 53 inside the main body 51 so that it rotates together with the main body 51, and a plurality of second protrusions 54 opposite to the first protrusions 52 are provided on the upper circumferential surface. By forming, when the door 11 is closed, the first and second protrusions 52 and 54 are engaged while shifting from each other, and when the door 11 is opened, the ends of the second protrusions 54 become the first protrusions 52 ) is rotated to a position corresponding to the end of the contact, the second cam 55 is pushed down to the lower end; a lower cap (56) fitted and fixed to the lowermost end of the body (51); It is installed between the first and second cams 53 and 55 inside the main body 51 and is tensioned or compressed depending on whether the second cam 55 ascends or descends, thereby increasing the rotational speed of the door 11 to be opened and closed. An elastic member 57 to reduce the damping role; a tension adjusting unit 90 installed at the lower end of the main body 51 to adjust the tension of the elastic member 57; characterized in that it consists of

In addition, the main body 51 has a central hole (51a) penetrated in the longitudinal direction; a depression line (51b) which is recessed in the longitudinal direction on the inner periphery of the central hole (51a); A plurality of fitting lines (51c) which are formed protruding in the longitudinal direction on the outer periphery of the main body (51) to fit the vertical frame (30) corresponding to the inner periphery groove (36) into which the main body (51) is inserted; a fastening line (51d) formed on both sides of the outer periphery of the main body (51) in the longitudinal direction, the inner periphery of which is formed with a thread, and a cutout cut in the longitudinal direction is formed; characterized in that it consists of

In addition, the tension control unit 90 is inserted into the lower end of the elastic member 57 inside the body 51, the elevating body 91 for supporting the elastic member (57); By screwing through the lower cap 56 from the outside of the main body 51 and being connected to the bottom surface of the elevating body 91, the elevating body 91 elevates and lowers according to the rotational direction to place the elastic member 57 at the lower end position. By adjusting the tension adjusting screw 92 to adjust the degree of compression of the elastic member 57; The tension adjusting screw 92 has a wrench groove 93 formed on the bottom so as to be rotatable through the adjusting device 100 , and the adjusting device 100 is fitted to the tension adjusting screw 92 . It is characterized in that the opening and closing possible insertion hole 34 is perforated on the outer periphery of the vertical frame 30 in which the main body 51 is installed.

In addition, the cover 60 includes a horizontal portion 61 installed horizontally on the upper end of the body 51 to be installed upright; a fitting pipe (62) protruding from the bottom surface of the horizontal part (61) in the form of a circular tube, corresponding to the upper end of the body (51) and fitted; The outer periphery of the fitting pipe 62 protrudes apart from each other in the longitudinal direction, and corresponds to the depression line 51b recessed in the longitudinal direction on the inner periphery of the body 51 and is fitted, so that of the horizontal portion 61 Fastening piece 63 to prevent rotation; A perforation is formed in the horizontal portion 61 so as to communicate with a fastening line 51d formed in the longitudinal direction on the outer periphery of the main body 51 , and the horizontal portion 61 is fixed to the main body 51 by a fixing means a first fixing hole 64 to make it; A plurality of fitting projections (65) protruding from the bottom surface of the horizontal part (61) and fitted into the holes (35) formed in the upper edge of the vertical frame (30) into which the main body (51) is inserted; A perforation is formed in the horizontal part 61 so as to communicate with the second fixing piece 31 formed at the upper end of the vertical frame 30 in the longitudinal direction, and the horizontal part 61 is fixed to the vertical frame 30 by a fixing means. ) a second fixing hole 66 to be fixed to; characterized in that it consists of

In addition, the door 11 is connected to each other, the upper and lower connecting jaws 12 formed on one side; a gearbox 80 installed on the connecting jaw 12 between the door 11 and the door 11 and connected to the rotation shaft of the plurality of doors 11; Among the plurality of doors 11 of the folding door 10, it is mounted in a mounting groove 13 recessed on one side of the upper surface of the door 11 located at the end, and when the folding door 10 is closed, the magnetic material of the door frame and a magnetic member 12 to be in magnetic contact; It is characterized in that it is further provided.

Hereinafter, a door hinge device equipped with a spring cam damping device according to a preferred embodiment of the present invention will be described in detail with reference to FIGS. 1 to 10 .

The door hinge device for easy assembly and disassembly provided with a spring cam damping device according to the present invention includes a fixed frame 20, a vertical frame 30, a spring cam damping device 50, a cover 60, and a fixed body 70. , including a control device 100 .

The fixed frame 20 is installed upright on the construction target surface (wall W) for installing the folding door 10, and is in the form of a hollow processed beam, and the upper end (and lower end) of the present invention will be described later. A plurality of first fixing pieces 21 to be connected to the fixing body 70 and the like are formed.

The first fixing piece 21 has a thread formed on its inner periphery so as to be coupled with a fixing means (a bolt or the like is used, and the same applies to other fixing means to be described later), and a second fixing piece 31 to be described later. ), the fastening line 51d, and the inner periphery of the second fixing hole 66 so that the same thread is formed.

The vertical frame 30 constitutes the horizontal frame 40 and the door 11, and is rotatably coupled to one side of the above-described fixing frame 20, and a plurality of second fixing pieces ( 31) is formed. This vertical frame 30 is also hollow inside and forms a beam shape.

In addition, when the plurality of doors 11 constituting the folding door 10 are folded, the vertical frame 30 of the door 11 is connected to the fixed frame 20 before the door 11 is opened and closed, It has a structure that rotates in the rear direction and rotates,

Accordingly, the fixed frame 20 forms a first recessed part 22 in which one side contacting the vertical frame 30 is recessed in an arc shape, and the vertical frame 30 has a first recessed part 22 . By protruding the arc-shaped first protrusion 32 corresponding to , rotation of the door 11 is facilitated.

In addition, at the upper and lower portions of the vertical frame 30 , the horizontal frame 40 is fastened to form a level with the ground, and the horizontal frame 40 fastened to the upper end of the vertical frame 30 is the upper portion of the horizontal frame 40 . The surface is not on the same horizontal line as the upper surface of the vertical frame 30, but is coupled to a position relatively higher than that of the vertical frame 30, so that the horizontal frame 40 and the vertical frame 30 are connected to the corners of each other. An installation space 33 is formed.

A spring cam damping device 50 for facilitating rotation of the door 11 to be described later through this installation space 33 is inserted and mounted in the vertical frame 30 in the longitudinal direction, and A cover 60, a fixture 70, and the like are sequentially installed on the upper portion. A description thereof will be provided below.

In addition, in the case of such a vertical frame 30, an insertion hole 34 is perforated at the lower end of one side so that an adjustment device 100, a hexagonal wrench, etc. to be described later can be inserted therein. At this time, the insertion hole 34 is perforated on the side of the first protrusion 32 so that the perforated insertion hole 34 is not identified from the outside when the door 11 is closed, so as not to damage the aesthetics.

The spring cam damping device 50 is installed in the installation space 33 formed at the edge connection part of the vertical frame 30 and the horizontal frame 40 of the door 11, in the vertical frame 30 having an empty inside. It is to be installed vertically in the longitudinal direction, and the hinge axis T is protruded at the upper part.

The spring cam damping device 50 includes a body 51 , a first cam 53 , a second cam 55 , a lower cap 56 , an elastic member 57 , and a tension adjusting unit 90 .

The body 51 forms an installation space therein, is installed upright, is in the form of a tube with both ends, that is, upper and lower ends, is mounted in the vertical frame 30 and rotates together, and the uppermost end is a vertical frame (30) and the same horizontal line as the structure. The body 51 includes a central hole 51a, a depression line 51b, a fitting line 51c, and a fastening line 51d.

The central hole 51a is a hole penetrating the inside of the main body 51, and the depression line 51b is a portion that is recessed in the inner periphery of the central hole 51a in a hemispherical cross-section in the longitudinal direction.

The fitting line 51c is formed to protrude in the longitudinal direction on the outer periphery of the main body 51, and is fitted to correspond to the inner periphery groove 36 of the vertical frame 30 into which the main body 51 is inserted. The main body 51 is to be positioned within the vertical frame 30 is fixed.

The fastening line (51d) is formed in the longitudinal direction on both sides of the outer periphery of the main body (51) on the protrusions (51e) protruding to both sides of the main body (51) without the fitting line (51c) being formed, the inner periphery A thread (a female thread, formed locally only on the inner periphery of the upper side of the fastening line 51d) is formed, and a cutout cut in the longitudinal direction is formed.

The first cam 53 is installed in the body 51 as described above, a hinge shaft T penetrating through the cover 60 is formed on the upper surface, and a plurality of inverted triangular first protrusions 52 are formed on the lower circumferential surface. The cams are formed to face each other. That is, the first cam 53 has a circular cross-section, and two inverted triangular first protrusions 52 are protruded to face each other at the outer portion of the lower end of the circle.

Due to the plurality of the first protrusions 52 , the first concave portions 58 , which are triangular empty spaces, are oppositely formed between the first protrusions 52 and the first protrusions 52 .

The second cam 55 has the same shape except for the hinge shaft T of the first cam 53, has a circular cross section, and the first cam 53 inside the body 51 described above. It is fixedly installed at the lower end so as to rotate together with the main body 51 , and a plurality of second protrusions 54 opposite to the first protrusions 52 are formed on the upper circumferential surface. Of course, like the first cam 53 , the second cam 55 also faces the second recessed part 59 , which is an empty space of an inverted triangle between the second protruding part 54 and the second protruding part 54 . is formed

That is, the second cam 55 has a plurality of sliding protrusions protruding from the outer periphery, and a plurality of sliding grooves corresponding to the sliding protrusions are also formed on the inner periphery of the body 51 in the longitudinal direction, so that the second cam 55 ) is slid up and down in a fixed position inside the main body 51 to have a structure capable of lifting and lowering.

Accordingly, before the first operation in which the door 11 is sealed, the plurality of first protrusions 52 of the first cam 53 correspond to the plurality of second depressions 59 formed on the upper surface of the second cam 55 , By maintaining the fitted shape, the first protruding part 52 of the first cam 53 and the second protruding part 54 of the second cam 55 have a shape in which they are engaged while displaced from each other, so that the first and second cams ( 53, 55) will have a form in which the corresponding surfaces are completely in close contact.

In addition, when the door 11 is rotated to one side and opened, the main body 51 and the second cam 55 fixed in the vertical frame 30 and the vertical frame 30 by the rotation of the door 11 are also It will be natural to rotate in the direction of rotation of the door 11 as they are accompanied, but the first cam 53 maintains its original state even though the vertical frame 30 and the main body 51 are rotated, but still does not rotate. Accordingly, as the second cam 55 is rotated, the second protrusion 54 of the upper surface of the second cam 55 gradually descends while moving along the slanted perimeter of the first protrusion 52, and eventually the first protrusion (52), the first and second protrusions (52, 54) come to a position where the ends of each other are in corresponding contact, and eventually, at the lower end of the fixed first cam (53) The second cam 55 is pushed down to the lower end of the main body 51 to have a shape.

The lower cap 56 is a cap fitted and fixed to the lowermost end of the body 51 .

The elastic member 57 (ex: coil spring) is installed between the first and second cams 53 and 55 inside the body 51 described above, and is tensioned according to whether the second cam 55 rises or falls. Alternatively, it is compressed to reduce the rotational speed of the door 11 to be opened and closed, thereby serving as a damping agent.

That is, when the door 11 is closed (when the first protruding part 52 of the first cam 53 is engaged with the second recessed part 59 of the second cam 55), the first tension When the door 11 is opened (the state in which the first protrusion 52 of the first cam 53 comes into contact with the second protrusion 54 of the second cam 55 and descends) while maintaining the state, the elastic member (57) is compressed slowly, and when the door 11 is closed again, the door 11 is not closed abruptly, but the compressed elastic member 57 is tensioned while returning to its original state so that the door 11 is slowly closed. will do

The tension adjusting unit 90 is installed at the lower end of the body 51 described above, and is a part for adjusting the tension of the elastic member 57 . The tension adjusting unit 90 for this purpose includes an elevating body 91 and a tension adjusting screw 92 .

The elevating body 91 is inserted into the lower end of the elastic member 57 inside the body 51 to support the elastic member 57 , and the tension adjusting screw 92 is installed from the outside of the body 51 . As the lower cap 56 is screwed through and connected to the bottom surface of the elevating body 91, the position of the screwed portion on the lower cap 56 is changed according to the rotational direction, and the elevating and lowering body 91 is elevated and lowered by an elastic member ( 57) by adjusting the position of the lower end, so that the degree of compression of the elastic member 57 can be adjusted.

In addition, the tension adjusting screw 92 has a wrench groove 93 formed on the bottom to be rotatable through the adjusting device 100 , and the adjusting device 100 can be fitted into the tension adjusting screw 92 . In order to do so, the opening and closing insertion hole 34 may be perforated on the outer periphery of the vertical frame 30 in which the main body 51 is installed.

(In addition, according to various embodiments of the user,

An auxiliary elastic member 110 (ex: coil spring) may be installed between the first and second cams 53 and 55 so as to be tensionable/compressible. When the door 11 is closed, the first and second cams ( 53 and 55) are compressed while meshing with each other, so that the door 11 is first damped by the elastic member 57, and when the door 11 is completely closed, the damping is adjusted secondarily and to serve as a buffer so that the door 11 can be completely closed without noise.

That is, when the door 11 is initially closed, it is compressed by the meshing of the first and second cams 53 and 55 between the first and second cams 53 and 55, and then the door 11 is opened. In this case, the auxiliary elastic member 110 is tensioned while returning to its original state, and when the door 11 is closed again, the auxiliary elastic member 110 is compressed due to the meshing of the first and second cams 53 and 55, and thus the door 11 ) is to serve as a buffer until the door 11 is completely closed while the speed at which the door 11 closes is further reduced due to the compression of the elastic member 57 .

Of course, for this purpose, grooves are formed at the lower end of the first cam 53 and the upper end of the second cam 55 so that both ends of the auxiliary elastic member 110 are fixed, so that they can be installed vertically. )

The cover 60 is a cap that corresponds to the upper end of the aforementioned body 51 and is fitted horizontally. The cover 60 for this purpose includes a horizontal portion 61 , a fitting pipe 62 , a fastening piece 63 , a first fixing hole 64 , a fitting protrusion 65 , and a second fixing hole 66 .

A step 67 is formed on the upper surface of the cover 60, and the second recessed portion ( 68) is formed, and the fixed body 70 is correspondingly seated on the horizontal surface of the step 61.

The horizontal part 61 is a plate installed horizontally on the upper end of the main body 51 in order to seal the upper end of the main body 51 described above. The horizontal portion 61 has a hole in the center of which a hinge shaft T protruding from the upper portion of a cover 60 to be described later mounted on the inside of the main body 51 is fitted, and has a 'B'-shaped cross-section. By having a shape, a chin is formed on the upper surface. In addition, a rounding surface is formed on the chin portion.

The fitting tube 62 is a circular tube that protrudes downward from the center of the bottom surface of the horizontal part 61, and corresponds to the central hole 51a of the main body 51 and is fitted. Accordingly, the hinge axis T of the cover 60 penetrates the center of the fitting pipe 62 and has a structure in which the horizontal portion 61 protrudes from the central upper surface.

The fastening piece 63 is formed to protrude from the outer periphery of the fitting pipe 62 in the longitudinal direction, has a hemispherical cross-section, and is vertically spaced apart from each other on the outer periphery of the fitting pipe 62 . This fastening piece 63 corresponds to the plurality of recessed lines 51b formed on the inner periphery of the body 51 and is fitted, thereby serving to prevent rotation of the horizontal portion 61 .

The first fixing hole 64 is a hole formed in the horizontal portion 61 so as to communicate with the fastening line 51d formed in the longitudinal direction on the outer periphery of the main body 51, and a separate fixing means (bolt) etc.) is continuously fastened to the first fixing hole 64 and the fastening line 51d from the upper part of the horizontal part 61 , so that the horizontal part 61 can be fixed to the main body 51 .

A plurality of the fitting protrusions 65 are formed to protrude downward from the bottom surface of the horizontal part 61, and are fitted into the holes 35 formed in the upper edge of the vertical frame 30 into which the main body 51 is inserted. It is configured to fix the horizontal part 61 to the main body 51 together with the first fixing hole 64 .

The second fixing hole 66 is a hole formed in the horizontal portion 61 so as to communicate with the second fixing piece 31 formed in the longitudinal direction at the upper end of the above-described vertical frame 30, the horizontal portion (61) A fixing means such as a bolt passes through the second fixing hole 66 from the top and is fastened to the second fixing piece 31, so that the horizontal part 61 can be fixed to the vertical frame 30 .

The fixing body 70 has one end positioned corresponding to the upper surface of the cover 60 in the installation space 33 described above, so that the hinge shaft T is fitted and fixed in the insertion hole 73 drilled in the center, and the other end is fixed to the first fixing piece 21 by fixing means on the upper surface of the fixing frame 20 , and the upper surface forms the same horizontal line as the horizontal frame 40 .

The fixing body 70 includes a first body 71 in the form of a circular plate in which an insertion hole 73 is punched in the center, and a plurality of first fixing pieces extending from the first body 71 and the fixing frame 20 ( 21) and consists of a second body 74 in the shape of a 'C' which perforates a plurality of fourth fastening holes 75 .

In addition, in the present invention

Connecting jaws 12 that are respectively recessed at the upper and lower ends of the door 11 are formed, and the gearbox 80 is provided on the connecting jaws 12 between the door 11 and the door 11. It is installed and connected to the rotation shaft of the plurality of doors 11 to enable rotation while connecting the door 11 and the door 11 to each other,

Among the plurality of doors 11 of the folding door 10, a magnetic member 12 (ex: magnet) is mounted in the mounting groove 13 recessed on one side of the upper surface of the door 11 located at the end. , when the folding door 10 is closed, it is made to be in magnetic contact with the magnetic material pre-mounted on the door frame, so that after the folding door 10 is closed, it can be prevented from being opened by the user's external force or wind, etc.

As described above, although the present invention has been described with reference to limited embodiments and drawings, the present invention is not limited thereto, and the technical spirit of the present invention and the following by those of ordinary skill in the art to which the present invention pertains. Of course, various modifications and changes are possible within the scope of equivalents of the claims to be described.

10: folding door 11: door
12: connecting jaw 13: mounting groove
14: magnetic member 20: fixed frame
21: first fixing piece 22: first depression
30: vertical frame 31: second fixing piece
32: first protrusion 33: installation space
34: insertion hole 35: hole
36: groove 40: horizontal frame
50: spring cam damping device 51: body
52: first protrusion 53: first cam
54: second protrusion 55: second cam
56: lower cap 57: elastic member
58: first depression 59: second depression
60: cover 61: horizontal part
62: fitting pipe 63: fastening piece
64: first fixing hole 65: fitting projection
66: second fixing hole 67: step
68: depression 70: fixed body
71: first body 72: second protrusion
73: insertion hole 74: second body
75: fourth fastening hole 80: gear box
90: tension control unit 91: elevating body
92: tension adjusting screw 93: wrench groove
100: regulator
T: hinge shaft

Claims (7)

It is applied to the folding door 10, in which the side surfaces of a plurality of doors 11 are rotatably connected by a hinge and are folded and opened and closed,
a fixing frame 20 that is installed to correspond to the wall W, and has a plurality of first fixing pieces 21 formed on its upper surface;
a vertical frame 30 of the door 11 that is rotatably coupled to one side of the fixing frame 20, has an insertion hole 34 perforated on one side, and has a second fixing piece 31 formed on its upper surface;
In the corner installation space 33 of the vertical frame 30 and the horizontal frame 40, a hinge shaft T is protruded upward, and is vertically installed in the vertical frame 30 in the longitudinal direction to rotate to one side. A spring cam damping device 50 that is installed so that it can automatically return to its original position afterward, so that a hinge for rotating the door 11 is not required;
The cover 60 is coupled to the upper surface of the spring cam damping device 50 in the installation space 33 and has a hole in the center through which the hinge shaft T protrudes;
One end is positioned to correspond to the upper surface of the cover 60 , and the hinge shaft T is fitted into the insertion hole 73 punched in the center to be fixed, and the other end is first fixed to the upper surface of the fixed frame 20 as a fixing means It is fixed to the piece 21, the upper surface of the horizontal frame 40 and the same horizontal line forming the fixture 70;
A door hinge device that is easy to assemble and disassemble with a spring cam damping device, characterized in that it comprises a.
The method of claim 1,
The fixed frame 20 forms a first depression 22 in which one side in contact with the vertical frame 30 is depressed in an arc shape,
In the vertical frame 30, the arc-shaped first protrusion 32 corresponding to the first concave part 22 is protruded to facilitate rotation of the door 11,
The insertion hole 34 is perforated on the side of the first protrusion 32, so that when the door 11 is closed, the perforated insertion hole 34 is not identified from the outside. and a door hinge device that is easy to disassemble.
The method of claim 1,
The spring cam damping device 50 is
a body 51 mounted in the vertical frame 20 and rotated together, the uppermost end forming the same horizontal line as the vertical frame 30;
A first cam ( 53);
It is fixedly installed at the lower end of the first cam 53 inside the main body 51 so that it rotates together with the main body 51, and a plurality of second protrusions 54 opposite to the first protrusions 52 are provided on the upper circumferential surface. By forming, when the door 11 is closed, the first and second protrusions 52 and 54 are engaged while shifting from each other, and when the door 11 is opened, the end of the second protrusion 54 becomes the first protrusion 52 ) is rotated to a position corresponding to the end of the contact, the second cam 55 is pushed down to the lower end;
a lower cap (56) fitted and fixed to the lowermost end of the body (51);
It is installed between the first and second cams 53 and 55 inside the main body 51 and is tensioned or compressed depending on whether the second cam 55 ascends or descends, thereby increasing the rotational speed of the door 11 to be opened and closed. An elastic member 57 to reduce the damping role;
a tension adjusting unit 90 installed at the lower end of the main body 51 to adjust the tension of the elastic member 57;
A door hinge device that is easy to assemble and disassemble with a spring cam damping device, characterized in that it consists of
4. The method of claim 3,
The body 51 is
a central hole (51a) that penetrates in the longitudinal direction;
a depression line (51b) which is recessed in the longitudinal direction on the inner periphery of the central hole (51a);
A plurality of fitting lines (51c) which are formed protruding in the longitudinal direction on the outer periphery of the main body (51) to fit the vertical frame (30) corresponding to the inner periphery groove (36) into which the main body (51) is inserted;
a fastening line (51d) formed on both sides of the outer periphery of the main body (51) in the longitudinal direction, the inner periphery of which is formed with a thread, and a cutout cut in the longitudinal direction is formed;
A door hinge device that is easy to assemble and disassemble with a spring cam damping device, characterized in that it consists of
4. The method of claim 3,
The tension adjusting unit 90 is
an elevating body 91 inserted into the lower end of the elastic member 57 inside the body 51 to support the elastic member 57;
By screwing through the lower cap 56 from the outside of the main body 51 and being connected to the bottom surface of the elevating body 91, the elevating body 91 elevates and lowers according to the rotational direction to place the elastic member 57 at the lower end position. By adjusting the tension adjusting screw 92 to adjust the degree of compression of the elastic member 57; is made up of
The tension adjusting screw 92 is
A wrench groove 93 is formed on the bottom surface to be rotatable through the adjusting device 100 , and the body 51 is installed so that the adjusting device 100 can be inserted into the tension adjusting screw 92 . A door hinge device that is easy to assemble and disassemble with a spring cam damping device, characterized in that the opening and closing opening 34 is perforated on the outer periphery of (30).
The method of claim 1,
The cover 60 is
a horizontal portion 61 installed horizontally on the upper end of the body 51 installed upright;
a fitting pipe (62) protruding from the bottom surface of the horizontal part (61) in the form of a circular tube, corresponding to the upper end of the body (51) and fitted;
The outer periphery of the fitting pipe 62 protrudes apart from each other in the longitudinal direction, and corresponds to the depression line 51b recessed in the longitudinal direction on the inner periphery of the body 51 and is fitted, so that of the horizontal portion 61 Fastening piece 63 to prevent rotation;
A perforation is formed in the horizontal portion 61 so as to communicate with a fastening line 51d formed in the longitudinal direction on the outer periphery of the main body 51 , and the horizontal portion 61 is fixed to the main body 51 by a fixing means a first fixing hole 64 to make it;
A plurality of fitting projections (65) protruding from the bottom surface of the horizontal part (61) and fitted into the holes (35) formed in the upper edge of the vertical frame (30) into which the main body (51) is inserted;
A perforation is formed in the horizontal part 61 so as to communicate with the second fixing piece 31 formed at the upper end of the vertical frame 30 in the longitudinal direction, and the horizontal part 61 is fixed to the vertical frame 30 by a fixing means. ) for fixing the second fixing hole 66;
A door hinge device that is easy to assemble and disassemble with a spring cam damping device, characterized in that it consists of
The method of claim 1,
Connecting jaws 12 formed on the upper and lower sides of the door 11 are connected to each other;
a gearbox 80 installed on the connecting jaw 12 between the door 11 and the door 11 and connected to the rotation shaft of the plurality of doors 11;
Among the plurality of doors 11 of the folding door 10, it is mounted in a mounting groove 13 recessed on one side of the upper surface of the door 11 located at the end, and when the folding door 10 is closed, the magnetic body of the door frame and a magnetic member 12 to be in magnetic contact;
A door hinge device that is easy to assemble and disassemble with a spring cam damping device, characterized in that it further comprises.

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