KR20200065527A - Hinge assembly for door - Google Patents

Abstract

The present invention relates to a hinge assembly for a door. According to an embodiment of the present invention, the hinge assembly for a door comprises: a gear shaft member including a central shaft which is disposed at the center of a hinge, a moving gear portion which is fixed to one end of the central shaft and has a first gear portion, an angle adjusting gear portion which has a second gear portion slidably facing the first gear portion, and a fixing gear portion which is fixed to the other end of the central shaft and fixedly coupled to the angle adjusting gear portion; a main body coupled to both sides of the gear shaft member and including a plurality of main body units having a double-sided coupling member with coupling surfaces formed on both surfaces; a pad coupled to one surface of the double-sided coupling member; and a cover coming in close contact with the other surface of the double-sided coupling member and detachably coupled to the pad. According to the present invention, the hinge assembly for a door can be applicable to various type of doors.

Description

Door hinge assembly {HINGE ASSEMBLY FOR DOOR}

The present invention relates to a hinge assembly for a door.

The door is essentially installed for entrance to and from the building, movement between isolated spaces in the building, and partitioned spaces, such as a room or a toilet.

The door is divided into several types according to the opening/closing structure, and the door of the casement type is widely used in consideration of user convenience.

In particular, the door is rotatably installed on the door frame using a hinge.

In the conventional case, the hinge for the door is simply configured to make the door rotatable to open or close the door with less force.

In addition, the conventional door hinge was installed through a predetermined surface between the door and the door frame. For this reason, the shape of the door and the door are formed in the conventional door hinge since the coupling part coupled to the door and the door frame has been determined from the time of manufacture. It was difficult to be used in various ways depending on the installation structure.

Therefore, the user can change the front and rear of the door hinge according to convenience and apply it by assembling variously on the door. It can also adjust the opening angle of the door or even control the automatic closing of the door. It is necessary to develop a hinge for a door that can absorb shock.

Prior art related to the present invention includes the Republic of Korea Registered Utility Model Publication No. 20-0428147 (announced on September 28, 2006), the prior literature discloses a door hinge with an automatic locking/closing function.

The present invention is to solve the above-mentioned problems, the object of the present invention is to provide a hinge assembly for a door that can be used for various doors because the user can easily change the engagement position of the front cover and pad of the door hinge.

Another object of the present invention is to provide a hinge assembly for a door that is easy to assemble and shows a smooth, one-piece aesthetic after assembly, and can be easily maintained when parts are damaged.

Another object of the present invention is to provide a hinge assembly for a door that can be used as a left and right body unit according to convenience by assembling a plurality of body units to the left and right of the gear shaft member.

Another object of the present invention is that the main body unit coupled to the upper and lower parts of the gear shaft member does not need to be separated, and there is no play in the engaging portion, so it is possible to prevent defects such as shaking of the door during use of the door. It is to provide a hinge assembly for a door.

Another object of the present invention is to provide a hinge assembly for a door in which a plurality of sliding contact surfaces are formed between a moving gear part and an angle adjusting gear part so that loads between each other can be distributed to a plurality of positions.

The objects of the present invention are not limited to the above-mentioned objects, and other objects and advantages of the present invention not mentioned can be understood by the following description, and will be more clearly understood by embodiments of the present invention. In addition, it will be readily appreciated that the objects and advantages of the present invention can be realized by means of the appended claims and combinations thereof.

In order to achieve the above object, the hinge assembly for a door according to an embodiment of the present invention is fixed to one end of the central shaft 110 and the central shaft 110 disposed in the central direction of the hinge, the first gear An angle adjusting gear part having a moving gear part 120 having a part 125 and a second gear part 133 which is coupled through the central shaft 110 and is slidable facing the first gear part 125 ( 130, a gear shaft member 100 that is fixed to the other end of the central shaft 110 and includes a fixed gear portion 140 coupled to the angle adjusting gear portion 130; A main body 200 including a plurality of main body units 300 coupled to both sides of the gear shaft member 100 and having double side coupling members 310 having coupling surfaces on both sides; A pad 400 coupled to one surface of the double-sided coupling member 310; And a cover 500 that is in close contact with the other surface of the double-sided coupling member 310 and is detachably coupled with the pad 400.

In addition, the double-sided coupling member 310 is provided with a coupling surface having the same shape and size to each other through both surfaces, and the pad 400 and the cover 500 may be changeable in the coupling direction with each other.

In addition, the main body unit 300 is provided at one end of the double-sided coupling member 310, and has a tubular projection 321 provided with an insertion hole 322 into which one end of the gear shaft member 100 is inserted. A first connecting body 320; And a second connecting body 330 provided at the other end of the double-sided coupling member 310 and having an arc-shaped groove 331 corresponding to the tubular protrusion 321.

In addition, the pad 400 is coupled to one surface of the double-sided coupling member 310, the pad body 410 to provide a flat exterior surface to be installed in close contact through the wall surface on which the door or door is installed; A curved surface connecting portion 420 extending round to one side of the pad body 410 to form a curved surface to a portion connected to the cover 500; And a side portion 430 extending from the edge of the pad body 410 to have a predetermined length in a direction coupled to the double-sided coupling member 310 and forming a side surface connected to the double-sided coupling member 310. .

In addition, the side portion 430 extends longer in a portion proximate to the curved connection portion 430, and when coupled with the cover 500, a protruding end portion 431 providing a contact surface 435 contacting the cover 500 ), the outer surface of the pad body 410 is formed to be inclined at a predetermined angle based on the engaging surface coupled to the double-sided coupling member 310, the pad 400 in each of the plurality of body units 300 ) May have a shape in which the pad 400 protrudes convexly toward the gear shaft member 100 when engaged.

In addition, a plurality of fastening holes 411 corresponding to fastening holes 311 provided in the double-sided coupling member 310 are provided inside the pad body 410, and the cover 500 is provided in the curved connection part 420. ) May be provided with a hook connection hole 421 for detachably coupled hook.

In addition, a plurality of grooves 413 may be disposed at regular intervals on the flat exterior surface of the pad body 410.

In addition, a plurality of protrusions 415 protruding convexly are formed on the flat exterior surface of the pad body 410 in which the plurality of shock absorbing grooves 413 are not disposed, and the plurality of protrusions 415 are the pads. When the body 410 is fastened to the installation surface, it is compressed to the installation surface to prevent slip or flow of the hinge assembly 1000 when the door is used.

In addition, a coating portion 410a made of an elastic material is formed on a flat exterior surface of the pad body 410, and a comb pattern, a grid pattern, etc. for enhancing frictional force may be further provided on the surface of the coating portion 410a. have.

In addition, the mobile gear unit 120, the first gear body 121 is provided with a hollow 122 is inserted into one end of the central shaft 110; And an expanding portion 123 having a plurality of protrusions 124 protruding in a circumferential direction at predetermined intervals along an outer circumferential surface, and having an outer diameter that is expanded compared to the first gear body 121. The first gear unit 125 protrudes from the expanding portion 123 and provides a first outer gear unit 1251 that provides a first outer sliding surface 1251a located outside the first gear unit 125. ); And a first inner sliding surface 1252a which is located inside the first gear part 125 than the first outer gear unit 1251 and is formed to face the first outer sliding surface 1251a. 1 inner gear unit 1252; includes, the angle adjustment gear portion 130, has the same diameter as the expansion portion 123, the second gear portion 133 is provided at one end, the circumference at the other end It includes a second gear body 131 is provided with a first tooth coupling portion 135 is provided with irregularities in the direction, the second gear portion 133, is located outside the second gear portion 133 And, a second outer gear unit (1331) for providing a second outer sliding surface (1331a) capable of contacting the first outer sliding surface (1251a); And a second inner sliding surface 1252a located inside the second gear portion 133 than the second outer gear unit 1331 and providing a second inner sliding surface 1252a that is in contact with the first inner sliding surface 1252a. It includes; a gear unit 1332.

In addition, the fixed gear part 140 includes a third gear body 141 having a hollow 142 into which the other end of the central shaft 110 is inserted; And a plurality of protrusions 144 protruding in a circumferential direction at predetermined intervals along the outer circumferential surface, and having an outer diameter that is larger than that of the third gear body 141. Including, the second tooth engaging portion 145 that is engaged; the first and second straight lines protruding to a predetermined height in the longitudinal direction on the outer circumferential surfaces of the first gear body 121 and the third gear body 141; Protrusions 129 and 149 are provided, and the other end of the central shaft 111 has a projection 113 for preventing separation, which prevents the coupling state from being released after the coupling between the other end of the central shaft 111 and the fixed gear portion 140. It may be further provided.

According to the present invention, the user can easily change the combined position of the cover (that is, the front cover) and the pad (that is, the rear pad) of the hinge for the door, so that it can be used for various doors.

In addition, according to the present invention, the front cover and the pad coupled to the front and rear of the body of the door hinge can be integrally assembled through the body. As a result, it shows a smooth and luxurious appearance aesthetics overall, and if some damage or breakage occurs for each part, it is possible to easily replace and assemble only that part, thereby maximizing convenience in maintenance.

In addition, according to the present invention, a plurality of main body units can be coupled upward and downward through a gear shaft member disposed at the center of a door hinge to form a main body. , Can be easily assembled and used on the right side. Therefore, mass production is possible and user convenience is maximized.

In addition, according to the present invention, there is no need to separate the body unit that is coupled to the upper and lower parts of the gear shaft member after engaging. Therefore, there is no gap between the gear shaft member and the main body, and thus it is possible to prevent a defect in which the door is shaken relative to the shaft during use of the door, and the product life is increased.

In addition, according to the present invention, a plurality of sliding contact surfaces are formed between the moving gear part constituting the gear shaft member and the angle adjusting gear part, so that loads therebetween can be distributed to a plurality of positions. As a result, it is possible to prevent the component from being damaged or worn because the load is concentrated in some positions, thereby improving durability. In addition, even when a problem occurs on one sliding contact surface, sliding movement due to the weight of the door can be possible through the other sliding contact surface, thereby preventing sudden malfunction of the door.

In addition, according to the present invention, the angle adjusting gear portion may be engaged through the central axis through the lower fixed gear portion and the circumferential irregular shape to not separate the body unit coupled to the fixed gear portion. In other words, the angle adjusting gear portion and the fixed gear portion do not rotate with each other and consist of a structure separated only up and down, so that the body unit at the bottom cannot be separated when adjusting the angle, thereby increasing the durability life.

In addition to the above-described effects, the concrete effects of the present invention will be described together while describing the specific matters for carrying out the invention.

1 and 2 are exploded perspective views showing a separated structure of a hinge assembly for a door according to an embodiment of the present invention.
3 is an enlarged perspective view showing only a pad among door hinge assemblies according to an embodiment of the present invention.
4 is a view showing the structure of the pad of the hinge assembly for a door according to an embodiment of the present invention.
5 is a view showing the structure of the main body of the door hinge assembly according to an embodiment of the present invention.
6 is a view showing a rear shape of a pad of a hinge assembly for a door according to an embodiment of the present invention.
7 is an exploded perspective view showing a structure in which a gear shaft member is separated from a hinge assembly for a door according to an embodiment of the present invention.
8 is a view showing a structure in which a gear shaft member is separated from a hinge assembly for a door according to an embodiment of the present invention.
9 is a view showing a state in which the gear shaft member is coupled in the hinge assembly for a door according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings so that those skilled in the art to which the present invention pertains can easily practice. The present invention can be implemented in many different forms and is not limited to the embodiments described herein.

In order to clearly describe the present invention, parts irrelevant to the description are omitted, and the same reference numerals are assigned to the same or similar elements throughout the specification. In addition, some embodiments of the present invention will be described in detail with reference to exemplary drawings. In adding reference numerals to the components of each drawing, the same components may have the same reference numerals as possible even though they are displayed on different drawings. In addition, in describing the present invention, when it is determined that detailed descriptions of related well-known structures or functions may obscure the subject matter of the present invention, detailed descriptions thereof may be omitted.

In describing the components of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are only for distinguishing the component from other components, and the nature, order, order, or number of the component is not limited by the term. When a component is described as being "connected", "coupled" or "connected" to another component, the component may be directly connected to or connected to the other component, but different components between each component It will be understood that the "intervenes" may be, or each component may be "connected", "coupled" or "connected" through other components.

In addition, in implementing the present invention, components may be subdivided and described for convenience of description, but these components may be implemented in one device or module, or one component may be multiple devices or modules. It can be implemented by being divided into.

In the drawings, FIGS. 1 and 2 are exploded perspective views showing a separated structure of a hinge assembly for a door according to an embodiment of the present invention. And Figures 3 and 4 is a perspective view and a configuration diagram showing only the pad enlarged from the hinge assembly for the door, Figure 5 is a view showing the structure of the body of the hinge assembly for the door, Figure 6 is according to an embodiment of the present invention It is a view showing the rear shape of the pad of the door hinge assembly.

As shown, the hinge assembly 1000 for a door according to an embodiment of the present invention includes a gear shaft member 100, a body 200, a pad 400, and a cover 500.

The gear shaft member 100 includes a central shaft 110, a moving gear part 120, an angle adjusting gear part 130, and a fixed gear part 140.

7 to 9, the central axis 110 is disposed in the center direction of the hinge. The central axis 110 may be formed in a rod shape of a circular cross section having a predetermined diameter. The lower end of the central shaft 110 may be provided with a projection for preventing separation 113 (see FIG. 7) to prevent separation from each other after being engaged with the fixed gear portion 140.

The moving gear part 120 is fixed to one end of the central shaft 110 and has a first gear part 125. The angle adjustment gear part 130 is coupled through the central shaft 110 and is provided with the second gear part 133 slidable facing the first gear part 125. The fixed gear part 140 is fixed to the other end of the central shaft 110 and is coupled to the angle adjustment gear part 130.

The main body 200 is coupled to both sides of the gear shaft member 100, and includes a plurality of main body units 300 having double-sided coupling members 310 having coupling surfaces on both sides.

The double-sided coupling member 310 is provided with a coupling surface having the same shape and size to each other through both sides. Accordingly, the bonding direction of the pad 400 and the cover 500 may be changed with each other, so that the plurality of body units 300 may be used as a left hinge or a right hinge.

The main body unit 300 includes a double-sided coupling member 310, a first connecting body 320, and a second connecting body 330.

The first connecting body 320 is provided at one end of the double-sided coupling member 310, and has a tubular protrusion 321 provided with an insertion hole 322 into which one end of the gear shaft member 100 is inserted. The second connecting body 330 is provided at the other end of the double-sided coupling member 310 and has an arc-shaped groove 331 corresponding to the tubular protrusion 321.

The pad 400 is coupled to one surface of the double-sided coupling member 310. The cover 500 is in close contact with the other surface of the double-sided coupling member 310 and can be detachably coupled to the pad 400 in a one-touch manner.

The pad 400 includes a pad body 410, a curved surface connection portion 420, and a side surface 430.

The pad body 410 is coupled to one surface of the double-sided coupling member 310, and provides a flat exterior surface to be installed in close contact through a door or a wall surface on which the door is installed.

The curved surface connection portion 420 extends round to one side of the pad body 410 to form a curved surface up to a portion connected to the cover 500.

The side portion 430 extends from the edge of the pad body 410 to have a predetermined length in a direction coupled to the double-sided coupling member 310 and forms a side surface connected to the double-sided coupling member 310.

As a specific example, the side portion 430 extends longer in a portion proximate to the curved connection portion 430 to provide a contact end 435 that comes into contact with the cover 500 when coupled with the cover 500 ( 431). Accordingly, after the coupling between the pad 400 and the cover 500 is made, it may have a smooth appearance, and the double-sided coupling member 310 may not be exposed to the outside.

In addition, the exterior surface of the pad body 410 is formed to be inclined at a predetermined angle (a, see FIG. 3) based on the coupling surface coupled to the double-sided coupling member 310. Accordingly, when the pads 400 are coupled to each of the plurality of body units 300, the pads 400 coupled to both sides of the gear shaft member 100 have a shape that protrudes convexly toward the gear shaft member 100. Can have As a result, when the pad body 410 is fixed in close contact with the door or the wall on which the door is installed, both body units 300 are normally opened at a predetermined angle, and the door has an effect of opening at a predetermined angle. Can be. Here, the angle (a) may be formed to about 7.5 degrees, but is not limited thereto, and the size of the angle may be changed as necessary.

In addition, a plurality of fastening holes 411 corresponding to the fastening holes 311 provided in the double-sided coupling member 310 are provided inside the pad body 410. In addition, a hook connection hole 421 for attaching and detaching the hook provided on the cover 500 may be provided on the curved connection part 420. Thus, one-touch fastening between the pad 400 and the cover 500 can be easily achieved.

Referring to FIG. 4, a plurality of grooves 413 are arranged at regular intervals on the flat exterior surface of the pad body 410. This groove 413 has a function of absorbing the shock applied to the hinge portion when using the door, and serves to absorb shock and reduce noise when the door is strongly opened or closed as the air is filled inside the groove 413 Do it.

In addition, a plurality of protrusions 415 protruding convexly may be formed on the flat exterior surface of the pad body 410 in which the plurality of shock absorbing grooves 413 are not disposed. When the pad body 410 is fastened to the installation surface, the plurality of protrusions 415 are pressed against the installation surface to prevent slip or flow of the hinge assembly 1000 and suppress vibration when using the door.

In addition, a coating portion 410a of an elastic material (eg, rubber, etc.) may be formed on the flat exterior surface of the pad body 410. In addition to this, a pattern for enhancing the frictional force, for example, a comb pattern, a grid pattern, etc. may be formed on the surface of the coating unit 410a.

Next, the gear shaft member 100 will be described.

7 to 9 are views illustrating a gear shaft member in a hinge assembly for a door according to an embodiment of the present invention.

As shown, the gear shaft member 100 constituting the hinge assembly for a door according to an embodiment of the present invention includes a central shaft 110, a moving gear unit 120, an angle adjustment gear unit 130, and a fixed gear unit 140.

The central axis 110 is disposed in the central direction of the hinge.

The moving gear unit 120 is fixed to one end of the central shaft 110 and has a first gear unit 125, the angle adjustment gear unit 130 is coupled through the central shaft 110 and the first gear unit 125 ), the second gear portion 133 is slidable.

The fixed gear part 140 is fixed to the other end of the central shaft 110 and is coupled with the angle adjustment gear part 130.

Hereinafter, the moving gear part 120, the angle adjustment gear part 130, and the fixed gear part 140 will be described in detail.

The moving gear part 120 includes a first gear body 121 and an expanding portion 123.

The gear body 121 is a circular rod-shaped member having a hollow 122 into which one end of the central shaft 110 is inserted.

The expansion pipe portion 123 has an outer diameter that is larger than that of the first gear body 121 and includes a plurality of projection portions 124 protruding in a circumferential direction at predetermined intervals along the outer circumferential surface.

When the mobile gear 120 is inserted into the insertion hole 322 of the tubular protrusion 321 of the first connection body 320, the plurality of protrusions 124 protrude to maintain the coupling state between each other by the interference fit method. do. The plurality of protrusions 124 may be provided at predetermined intervals in the circumferential direction along the circumferential surface of the expansion tube 123.

At this time, the first gear unit 125 includes a first outer gear unit 1251 and a first inner gear unit 1252.

The first outer gear unit 1251 protrudes from the expansion portion 123 and provides a first outer sliding surface 1251a located outside the first gear portion 125.

In addition, the first inner gear unit 1252 is located inside the first gear portion 125 than the first outer gear unit 1251, and the first inner sliding surface is formed to face the first outer sliding surface 1251a. (1252a).

The angle adjustment gear part 130 has the same diameter as the expansion tube part 123, the second gear part 133 is provided at one end, and the first tooth coupling part 135 is provided with irregularities in the circumferential direction at the other end. It includes a second gear body 131.

At this time, the second gear unit 133 includes a second outer gear unit 1331 and a second inner gear unit 1332.

The second outer gear unit 1331 is located outside the second gear portion 133 and provides a second outer sliding surface 1331a that is in contact with the first outer sliding surface 1251a.

In addition, the second inner gear unit 1332 is located inside the second gear portion 133 than the second outer gear unit 1331 and is in contact with the first inner sliding surface 1252a, the second inner sliding surface 1252a ).

As described above, the moving gear part 120 and the angle adjusting gear part 130 are formed of a pair of gears, thereby dividing the center of gravity, improving durability, and improving operational reliability.

The fixed gear part 140 includes a third gear body 141 and a second tooth coupling part 145.

The third gear body 141 has a hollow 142 into which the other end of the central shaft 110 is inserted. In addition, the second tooth engaging portion 145 has a larger outer diameter than the third gear body 141, and includes a plurality of protrusions 144 protruding in the circumferential direction at predetermined intervals along the outer circumferential surface. The protrusion 144 has the same function as the protrusion 124 provided in the expansion tube 123 described above.

The second tooth engaging portion 145 is engaged with the first tooth engaging portion 135, and fixes the engagement position between the angle adjusting gear portion 130 and the fixed gear portion 140, and rotation or movement occurs between each other. To prevent it.

According to the configuration as described above, the fixed gear unit 140 does not need to be separated for angle adjustment after being combined with the main unit 300. That is, the user can adjust the angle through the first and second tooth type coupling parts 135 and 145 by rotating only the angle adjusting gear part 130 to the required angle. Accordingly, the door opening angle can be adjusted or the automatic closing function can be set without separating the moving gear part 120 and the fixed gear part 140.

In other words, the movable gear portion 120 and the fixed gear portion 140 can maintain a solid coupling state with the plurality of body units 300, thereby reducing the occurrence of play at the engaging portion and suppressing unnecessary shaking during operation of the door. can do.

On the other hand, referring to Figure 8, the first circumferential surface of the first gear body 121 and the third gear body 141 protrudes to a predetermined height in the longitudinal direction to combine the first and third gear bodies 121, 141 Guided first and second straight protrusions 129 and 149 may be provided.

As described above, according to the configuration and operation of the present invention, the user can easily change the combined position of the front cover and pad of the hinge for the door and can be used for various doors.

In addition, the front cover and the pad coupled to the front and rear of the body of the door hinge can be assembled integrally through the body. As a result, overall, it shows a smooth and luxurious appearance, and when some damage or breakdown occurs for each part, it is possible to easily replace and assemble only that part, thereby maximizing convenience in maintenance.

In addition, the main body can be configured by combining a plurality of main body units up and down through a gear shaft member disposed at the center of a door hinge, and then assembled into a left and right side by a user after molding and manufacturing a plurality of main body units. Can be used. Therefore, mass production is possible and user convenience can be maximized.

In addition, there is no need to separate the main body unit coupled to the upper and lower parts of the gear shaft member after coupling. Therefore, the gap between the gear shaft member and the main body is not generated, and thus, during the use of the door, a defect in which the door is shaken relative to the shaft can be prevented, and product life can be increased.

In addition, a plurality of sliding contact surfaces are formed between the moving gear part constituting the gear shaft member and the angle adjusting gear part, so that loads therebetween can be distributed to a plurality of positions. As a result, it is possible to prevent the component from being damaged or worn because the load is concentrated in some positions, thereby improving durability. In addition, even when a problem occurs in one sliding contact surface, sliding movement due to the weight of the door can be possible through the other sliding contact surface, thereby preventing sudden door operation failure.

In addition, the angle adjusting gear portion may be engaged through the central axis through the lower fixed gear portion and the circumferential irregular shape, so that the body unit coupled to the fixed gear portion may not be separated. In other words, the angle adjusting gear portion and the fixed gear portion are configured to be separated only up and down without rotating each other, so that the body unit at the bottom cannot be separated when adjusting the angle, thereby increasing the durability life.

As described above, the present invention has been described with reference to the exemplified drawings, but the present invention is not limited by the examples and drawings disclosed in the present specification, and can be varied by those skilled in the art within the scope of the technical idea of the present invention. It is obvious that modifications can be made. In addition, although the operation and effect according to the configuration of the present invention is not explicitly described while describing the embodiments of the present invention, it is natural that the predictable effect by the configuration should also be recognized.

100: gear shaft member
110: central axis
111: rod-shaped body
113: departure prevention projections
120: mobile gear
121: first gear body
122: hollow
123: expansion part
124: protrusion
125: first gear unit
1251: first outer gear unit
1251a: First outer sliding surface
1252: first inner gear unit
1252a: First inner sliding surface
129: straight projection
130: angle adjustment gear
131: second gear body
133: second gear unit
1331: second outer gear unit
1331a: Second outer sliding surface
1332: Second inner gear unit
1332a: Second inner sliding surface
135: first tooth coupling
140: fixed gear part
141: third gear body
142: hollow
144: protrusion
145: second tooth coupling
149: straight projection
200: main body
300: main unit
310: double-sided coupling member
311: Fastening hole
320: first connection body
321: tubular protrusion
322: insertion hole
330: second connection body
331: arc-shaped groove
400: pad
410: pad body
410a: coating
410b: slip-prevention pattern
411: fastening hole
413: shock absorber groove
415: anti-slip projection
420: curved surface connection
421: hook connection hole
430: side
431: protruding end
435: contact surface
500: cover
1000: hinge assembly for doors

Claims (7)

A central axis disposed at the center of the hinge, a movable gear portion fixed to one end of the central axis and having a first gear portion, an angle adjusting gear portion having the second gear portion slidable facing the first gear portion, and of the central axis A gear shaft member fixed to the other end and including a fixed gear part fixed to the angle adjusting gear part;
A body including a plurality of body units coupled to both sides of the gear shaft member and having double-sided coupling members provided with coupling surfaces on both sides;
A pad coupled to one surface of the double-sided coupling member; And
A cover in close contact with the other surface of the double-sided coupling member and detachably coupled to the pad;
Door hinge assembly comprising a.
According to claim 1,
The body unit,
A first connecting body provided at one end of the double-sided coupling member and having a tubular protrusion provided with an insertion hole into which one end of the gear shaft member is inserted; And
A second connecting body provided at the other end of the double-sided coupling member and having an arc-shaped groove corresponding to the tubular protrusion;
Door hinge assembly comprising a.
According to claim 1,
The pad,
A pad body coupled to one surface of the double-sided coupling member, installed in close contact with the installation site, and having a flat exterior surface;
A curved connecting portion extending round to one side of the pad body and forming a curved surface to a portion connected to the cover; And
A side portion extending from an edge of the pad body in a direction coupled to the double-sided coupling member and forming a side surface connected to the double-sided coupling member;
Door hinge assembly comprising a.
According to claim 3,
The inside of the pad body is provided with a plurality of fastening holes corresponding to the fastening holes provided in the double-sided coupling member, the curved connection portion is provided with a hook connection hole for detachably coupled hook provided on the cover
Door hinge assembly.
According to claim 3,
A plurality of grooves are arranged at regular intervals from each other on the flat exterior surface of the pad body.
Door hinge assembly.
According to claim 1,
The moving gear portion, the first gear body having a hollow to which one end of the central shaft is inserted, and the outer diameter is expanded compared to the first gear body, a plurality of protrusions in the circumferential direction at a predetermined distance along the outer circumferential surface Including the expansion portion having a projection,
The first gear portion, the first outer gear unit protruding from the expansion portion, and providing a first outer sliding surface located on the outside of the first gear portion, and the inner side of the first gear portion than the first outer gear unit And a first inner gear unit positioned at the first outer sliding surface and providing a first inner sliding surface formed on the first outer sliding surface.
The angle adjustment gear portion, the second gear body having the same diameter as the expansion pipe portion, the second gear portion is provided at one end, the first toothed coupling portion is provided with irregularities in the circumferential direction at the other end,
The second gear unit is located outside the second gear unit, and a second outer gear unit providing a second outer sliding surface contactable with the first outer sliding surface, and the second outer gear unit than the second outer gear unit A second inner gear unit which is located inside the gear portion and provides a second inner sliding surface that is in contact with the first inner sliding surface.
Door hinge assembly.
The method of claim 6,
The fixed gear portion, the third gear body provided with a hollow to which the other end of the central shaft is inserted, and the outer diameter is expanded compared to the third gear body, a plurality of protrusions in the circumferential direction at a predetermined distance along the outer circumferential surface It has a protruding portion, and includes a second tooth engaging portion engaged with the first tooth engaging portion, and the other end of the central shaft is further provided with a projection for preventing separation for strengthening the coupling force with the fixed gear portion.
Door hinge assembly.

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