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WO2017086505A1 - Integrated hinge - Google Patents

Integrated hinge Download PDF

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Publication number
WO2017086505A1
WO2017086505A1 PCT/KR2015/012452 KR2015012452W WO2017086505A1 WO 2017086505 A1 WO2017086505 A1 WO 2017086505A1 KR 2015012452 W KR2015012452 W KR 2015012452W WO 2017086505 A1 WO2017086505 A1 WO 2017086505A1
Authority
WO
WIPO (PCT)
Prior art keywords
door
hinge
fixing plate
frame
hinge shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2015/012452
Other languages
French (fr)
Korean (ko)
Inventor
홍윤표
서종근
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daehyeung H&t Co Ltd
Original Assignee
Daehyeung H&t Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Daehyeung H&t Co Ltd filed Critical Daehyeung H&t Co Ltd
Priority to PCT/KR2015/012452 priority Critical patent/WO2017086505A1/en
Priority to CN201580085698.4A priority patent/CN108474228A/en
Publication of WO2017086505A1 publication Critical patent/WO2017086505A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D3/00—Hinges with pins
    • E05D3/02—Hinges with pins with one pin
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D5/00—Construction of single parts, e.g. the parts for attachment
    • E05D5/02—Parts for attachment, e.g. flaps
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D5/00—Construction of single parts, e.g. the parts for attachment
    • E05D5/10—Pins, sockets or sleeves; Removable pins

Definitions

  • the present invention relates to an integral hinge, and more particularly, to an integral hinge capable of fast and firmly fixing the door to the door frame as the upper coupling portion and the lower coupling portion are formed on the upper and lower portions of the long hinge shaft.
  • the hinge is a device that is attached to the door frame and the door to open and close the door.
  • Hinge is a device made of two symmetrical metal plate pillars to interlock with each other, and is a type of feldspar, which has the same function as a burrow. According to the attached shape, it is classified into exposed hinge and hidden hinge, and according to size, it is divided into long hinge and short hinge. Its use is an indispensable device for swing doors because it connects the door plate to the body so that the door can be opened and closed.
  • the Republic of Korea Patent No. 10-0937387 (registered on Jan. 18, 2010) is hinged to one inner side of the fixing plate without undergoing a separate work process of making a bent groove in the fixing plate itself.
  • the door frame fastener is formed with the end of the shaft extended and rolled, and the end of the hinge shaft extends to the inner end of the other side of the rotating plate opposite to one side of the fixed plate on which the door frame fastener is formed. Or it is posted with respect to the structure of the door hinge is formed with a fastener in which the end from the upper end of the hinge shaft to the lower end is rolled.
  • the conventional hinge as described above is used to install a plurality of hinges in the door frame and the door, so if you do not fasten the plurality of hinges side by side there is a problem that the door is opened after the hinge installation or the door is opened in a twisted state .
  • the conventional hinge installation does not know exactly the portion of the load load and the portion of the shear force generated by the rotation of the door, and installs a large number of hinges in the eye mass, so if you install a lot of hinge, the cost will rise, and the hinge If installed, there is a problem that the door stability is inferior.
  • Another object of the present invention is to provide an integrated hinge that can prevent an accident by preventing a finger from entering between the door frame and the door.
  • the hinge shaft, and the upper coupling portion provided with at least one door fixing plate fixed to the door and at least one frame fixing plate which is rotatably connected to the hinge shaft and fixed to the door frame
  • a lower coupling part having at least one frame fixing plate rotatably connected to the lower portion of the hinge shaft and fixed to the door frame and at least one door fixing plate fixed to the door, and the upper coupling portion at the hinge shaft. It is achieved by an integral hinge comprising a shaft portion formed between the lower coupling portion.
  • the hinge shaft is formed with a diameter smaller than the shaft portion of the upper coupling portion and the lower coupling portion is located.
  • the upper coupling portion or the lower coupling portion further comprises a spacer coupled to the hinge axis.
  • the hinge axis is formed with a length longer than one half of the door height.
  • the top and bottom of the hinge shaft is formed with a tip to prevent the departure of the door fixing plate and the frame fixing plate.
  • the frame fixing plate and the door fixing plate are formed to be alternately arranged up and down around the hinge axis on each opposite side.
  • the frame fixing plate and the door fixing plate are each provided with a connecting portion formed in a direction perpendicular to the hinge axis, and a fixed portion extending in a direction perpendicular to the connecting portion.
  • the frame fixing plate and the door fixing plate located in the upper coupling portion is formed with a fixed area of a larger area than the frame fixing plate and the door fixing plate located in the lower coupling portion.
  • the hinge shaft is formed longer than the length of the door fixing plate and the frame fixing plate is connected to form the upper coupling portion and the lower coupling portion at the upper and lower ends of the hinge shaft and the shaft portion is formed in the center Accordingly, when the hinges are fixed in parallel with the door frame without the work of aligning a plurality of hinges in the existing hinge installation, the hinge can be easily installed, thereby reducing the installation time and significantly reducing the installation failure rate.
  • the hinge can be designed in consideration of the size and position of the shear force applied to the hinge when opening and closing the door, it is efficient to produce a hinge with a stress for each door.
  • the hinge axis is located between the door frame and the door is a space for the fingers can be blocked is effective to prevent safety accidents by children.
  • FIG. 1 is a front view of the integral hinge according to an embodiment of the present invention.
  • FIG. 2 is an exploded view of the integral hinge according to an embodiment of the present invention.
  • Figure 3 is a state of use of the integral hinge in accordance with an embodiment of the present invention.
  • FIG. 4 is a front view of the unitary hinge according to another embodiment of the present invention.
  • Figure 5 is a state of use of the integral hinge in accordance with another embodiment of the present invention.
  • the upper coupling portion 12 and the lower coupling portion 16 are integrally formed on the upper and lower portions of the hinge shaft 10 that are elongated. (1,2)
  • the hinge shaft 10 and the hinge shaft 10 is rotatably connected to the upper end, at least one frame fixing plate 22 fixed to the door frame (F), the door (D)
  • At least one door fixing plate 20 is fixed to the upper coupling portion 12 is provided, rotatably connected to the lower end of the hinge shaft 10, at least one frame fixing plate fixed to the door frame (F) 22 and a bottom having at least one door fixing plate 20 fixed to the door D is provided.
  • the hinge shaft 10 includes a shaft portion 14 formed between the upper coupling part 12 and the lower coupling portion (16).
  • the hinge shaft 10 corresponds to an axis in which the door fixing plate 20 and the frame fixing plate 22 are connected and rotated.
  • at least one door fixing plate 20 and The upper coupling portion 12 and the lower coupling portion 16 is connected to the frame fixing plate 22, the shaft portion 14 formed so as to be spaced apart a predetermined distance between the upper coupling portion 12 and the lower coupling portion 16. It is preferable that it is formed to be constricted so as to be provided.
  • the hinge shaft 10 is preferably formed of a metal material, but may be formed of any material that can withstand the shear force generated in the hinge shaft 10 as the door (D) is rotated.
  • Door fixing plate 20 is a plate-type provided with a through hole 26 to be fixed to the connecting portion 28 rotatably coupled to the hinge shaft 10 and a fastening tool such as nails or screws to the door (D) It is formed of the fixing portion 24.
  • Frame fixing plate 22 is plate-type provided with a through hole 26 to be fixed to the connecting portion 28 rotatably coupled to the hinge shaft 10 and a fastening tool such as nails or screws to the door frame (F) It is formed to face the door fixing plate 20 to the fixing portion 24 of the.
  • the door fixing plate 20 and the frame fixing plate 22 may be formed in various forms, in order to evenly distribute the load of the door (D) received by the door fixing plate 20 and the frame fixing plate 22 evenly. It is preferably formed in a symmetrical shape with respect to the hinge axis (10).
  • the upper coupling part 12 is formed of at least one door fixing plate 20 and the frame fixing plate 22 and is coupled to the upper portion of the hinge shaft 10.
  • the lower coupling part 16 is formed of at least one door fixing plate 20 and a frame fixing plate 22 and is formed below the hinge shaft 10 at a predetermined interval from the upper coupling part 12.
  • the upper coupling portion 12 receives more lateral pressure and shear force than the lower coupling portion 16, it is preferable to install a plurality of door fixing plates 20 and frame fixing plates 22 on the upper coupling portion 12. Do.
  • the shaft portion 14 is a portion located between the upper coupling portion 12 and the lower coupling portion 16 in the hinge shaft 10 connects the upper coupling portion 12 and the lower coupling portion 16.
  • the shaft portion 14 is the upper coupling portion 12 in the hinge shaft 10 so that the connection between the hinge shaft 10 and the upper coupling portion 12 and the lower coupling portion 16 from the outside can be seen smooth.
  • the diameter of the lower coupling portion 16 may be larger than the position where the lower coupling portion 16 is located. It is prevented from moving downward.
  • the upper coupling portion 12 has a hollow cylindrical spacer having a predetermined length in place of the door fixing plate or the frame fixing plate in place of these, so that even if the step is located at a predetermined position of the shaft portion 14 as necessary. The number of the door fixing plate or the frame fixing plate positioned in the upper coupling portion can be adjusted. It is prevented to move upward of.
  • the lower coupling portion 16 has a hollow cylindrical spacer having a predetermined length in place of the door fixing plate or the frame fixing plate in place of these, so that even if the step is located at a predetermined position of the shaft portion 14 as necessary.
  • the number of door fixing plates or frame fixing plates located on the lower coupling part can be adjusted.
  • the integral hinge 1 according to the preferred embodiment of the present invention, as shown in Figure 3, when the door (D) is coupled to the door frame (F) to maintain the balance of the door (D) and the door (D)
  • the hinge shaft 10 is preferably formed longer than a half of the height of the door.
  • the tip 30 larger than the diameter of the can be coupled, the tip 30 may be formed in various forms, but the door fixing plate 20 and the frame fixing plate 22 and the hinge shaft 10 from the outside
  • the diameter of the tip 30 is preferably formed to be similar to the diameter of the shaft portion 14 so that the engagement of the tip 30 with the tip 30 may be smooth.
  • integral hinges (1, 2) according to a preferred embodiment of the present invention, as shown in Figure 1, the door fixing plate 20 and the frame fixing plate 22 is opposed to the hinge axis 10 While being disposed in a predetermined position, they may be alternately arranged up and down so as not to overlap each other even if they are rotated.
  • the load of the door D supported by the hinges 1 and 2 may be evenly distributed. Can be.
  • the door fixing plate 20 and the frame fixing plate 22 is connected to the hinge shaft 10 and the door (D) or door frame ( It is formed of a plate-shaped fixing portion 24 fixed to the F), the connecting portion 28 and the fixing portion 24, as shown in Figure 1, integrally formed in a direction perpendicular to the hinge shaft 10 4, the fixing part 24 extends in a vertical direction from the connecting part 28 so as to widen the engagement area of the fixing part 24. Can be.
  • the upper coupling part 12 receiving a lot of lateral pressure and shear force
  • the fixing part 24 of the door fixing plate 20 and the frame fixing plate 22 located in the area of the fixing part 24 of the door fixing plate 20 and the frame fixing plate 22 located in the lower coupling part 16 is provided. It is desirable to form a wider to increase the fastening force.
  • the integrated hinges 1 and 2 have a hinge shaft 10 formed longer than the length of the door fixing plate 20 and the frame fixing plate 22 are connected to the hinge shaft (
  • the upper coupling portion 12 and the lower coupling portion 16 is formed on the upper and lower portions of 10), and the shaft portion 14 is formed in the center, so that a plurality of hinges are aligned in a row so that the door is not twisted when the existing hinge is installed.
  • Fixing the hinge shaft 10 in parallel with the door frame (F) without work can be easily installed hinges (1, 2) has the effect of reducing the installation time and installation failure rate significantly.
  • the hinges (1, 2) can be designed in consideration of the size and position of the shear force applied to the hinges (1, 2) when opening and closing the door, and can be produced as a door (D) and a set Therefore, it is possible to produce a hinge with a stress for each door (D) is efficient.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hinges (AREA)

Abstract

An integrated hinge (1, 2) according to preferred embodiments of the present invention includes an upper coupling part (12) and a lower coupling part (16) integrally formed at an upper portion and a lower portion of a longitudinally formed hinge shaft (10), and thus, at the time of installing the hinge (1, 2), it is possible to easily install the hinge (1, 2) without the distortion of a door if the hinge shaft (10) is fixed to a door frame (F) in parallel thereto, even without an operation of arranging multiple hinges in a line as in a conventional method. The hinge (1, 2) comprises: a hinge shaft (10); an upper coupling part (12) comprising at least one frame fixed plate (22) which is rotatably connected to the upper end of the hinge shaft (10) and is fixed to a door frame (F), and at least one door fixed plate (20) fixed to a door (D); a lower coupling part (16) comprising at least one frame fixed plate (22) which is rotatably connected to the lower end of the hinge shaft (10) and is fixed to the door frame (F), and at least one door fixed plate (20) fixed to the door (D); and a shaft part (14) which is formed between the upper coupling part (12) and the lower coupling part (16) on the hinge shaft (10).

Description

일체형 경첩Integral hinges

본 발명은 일체형 경첩에 관한 것으로, 더욱 상세하게는 길게 형성된 힌지축 의 상부와 하부에 상부결합부와 하부결합부가 형성됨에 따라 문틀에 문을 신속하고 견고하게 고정시킬 수 있는 일체형 경첩에 관한 것이다.The present invention relates to an integral hinge, and more particularly, to an integral hinge capable of fast and firmly fixing the door to the door frame as the upper coupling portion and the lower coupling portion are formed on the upper and lower portions of the long hinge shaft.

일반적으로 경첩은 문틀과 문짝에 부착되어 문짝을 개폐할 수 있도록 하는 장치이다. 경첩은 대칭이 되는 두개의 금속판 기둥축을 중심으로 서로 맞물리어 돌 아갈 수 있도록 만든 장치이며, 장석의 일종으로 돌쩌귀와 같은 기능을 가진다. 부착된 외형에 따라 노출형 경첩과 숨은 경첩으로 분류하고, 크기에 따라 장경첩과 단경첩으로 구분한다. 용도는 문판을 몸체에 잇대어 문을 열고 닫을 수 있도록 해 주므로 여닫이 문에서는 필수 불가결한 장치이다.In general, the hinge is a device that is attached to the door frame and the door to open and close the door. Hinge is a device made of two symmetrical metal plate pillars to interlock with each other, and is a type of feldspar, which has the same function as a burrow. According to the attached shape, it is classified into exposed hinge and hidden hinge, and according to size, it is divided into long hinge and short hinge. Its use is an indispensable device for swing doors because it connects the door plate to the body so that the door can be opened and closed.

종래의 경첩에 관한 기술로서 대한민국 등록특허 제10-0937387호(2010.01.18 등록)에는 고정 플레이트의 자체에 굴곡된 홈을 만들어 제작하는 별도의 작업공정 을 거치지 않고 고정 플레이트의 한쪽면 내측 단부에 힌지축의 단부가 연장되어 말 은 상태로 도어틀 고정구가 형성되어 있으며, 도어틀 고정구가 형성되어 있는 고정 플레이트의 한쪽면과 상반되는 회전 플레이트의 다른 한쪽면 내측 단부에 힌지축의 단부가 연장되어 말은 상태 또는 힌지축 상단에서 하단까지의 단부가 연장되어 말은 상태로 도어 고정구가 형성되어 있는 고정구가 형성된 도어경첩의 구조에 관하여 게시되어 있다.As a conventional hinge technology, the Republic of Korea Patent No. 10-0937387 (registered on Jan. 18, 2010) is hinged to one inner side of the fixing plate without undergoing a separate work process of making a bent groove in the fixing plate itself. The door frame fastener is formed with the end of the shaft extended and rolled, and the end of the hinge shaft extends to the inner end of the other side of the rotating plate opposite to one side of the fixed plate on which the door frame fastener is formed. Or it is posted with respect to the structure of the door hinge is formed with a fastener in which the end from the upper end of the hinge shaft to the lower end is rolled.

또한 대한민국 등록특허 제10-0428752호(2004.04.30.등록)에는 경첩에 있 어서, 일정 길이의 축부와, 상기 축부에 삽입 조립되어 수회 동일 형상으로 일측을 향해 절곡 형성되는 3단의 상,중,하단 경첩고정부를 포함한 구성으로 이루어짐을 특 징으로 하는 전/후방 구별 없이 사용할 수 있는 경첩이 게시되어 있다.In addition, the Republic of Korea Patent No. 10-0428752 (registered on April 30, 2004) in the hinge, the shaft portion of a predetermined length, three stages of the upper and middle are inserted and assembled into the shaft portion is bent toward one side in the same shape several times Hinges that can be used without distinction between the front and rear, which are characterized by consisting of the lower hinge fixing government, are posted.

그러나 전술한 바와 같은 종래의 경첩은 문틀 및 문에 설치시에 다수개의 경첩을 사용하게 되므로 다수개의 경첩을 일렬로 나란히 고정시키지 못하면 경첩 설 치 후 문짝이 열리지 않거나 뒤틀린 상태로 문짝이 열리는 문제점이 있다.However, the conventional hinge as described above is used to install a plurality of hinges in the door frame and the door, so if you do not fasten the plurality of hinges side by side there is a problem that the door is opened after the hinge installation or the door is opened in a twisted state .

또한 종래의 경첩 설치는 문의 하중이 걸리는 부분과 문의 회전에 의해 전단력이 발생하는 부분을 정확히 파악하지 못하고 눈대중으로 다수개의 경첩을 설치하기 때문에 경첩을 많이 설치하게 되면 비용이 상승하게 되고, 경첩을 적게 설치하게 되면 문의 안정성이 떨어지는 문제점이 있다.In addition, the conventional hinge installation does not know exactly the portion of the load load and the portion of the shear force generated by the rotation of the door, and installs a large number of hinges in the eye mass, so if you install a lot of hinge, the cost will rise, and the hinge If installed, there is a problem that the door stability is inferior.

본 발명의 목적은 길게 형성된 힌지축의 상부와 하부에 상부결합부와 하부결합부가 일체로 형성됨에 따라 문이 뒤틀리지 않고 견고하게 고정되며 간편하게 설치되는 일체형 경첩을 제공하는 데 있다.It is an object of the present invention to provide an integrated hinge that is firmly fixed and easily installed without twisting the door as the upper coupling portion and the lower coupling portion are integrally formed on the upper and lower portions of the hinge shaft.

본 발명의 다른 목적은 문틀과 문 사이로 손가락이 들어가는 것을 방지하여 사고를 방지할 수 있는 일체형 경첩을 제공하는 데 있다.Another object of the present invention is to provide an integrated hinge that can prevent an accident by preventing a finger from entering between the door frame and the door.

전술한 본 발명의 목적은, 힌지축과, 상기 힌지축 상부에 회전 가능하도록 연결되고 문틀에 고정되는 적어도 하나이상의 틀고정플레이트와 문에 고정되는 적어 도 하나 이상의 문고정플레이트가 구비되는 상부결합부와, 상기 힌지축 하부에 회전 가능하도록 연결되고 문틀에 고정되는 적어도 하나이상의 틀고정플레이트와 문에 고정되는 적어도 하나 이상의 문고정플레이트가 구비되는 하부결합부와, 상기 힌지축에서 상기 상부결합부와 하부결합부 사이에 형성되는 축부를 포함하는 일체형 경첩에 의해 달성된다.The above object of the present invention, the hinge shaft, and the upper coupling portion provided with at least one door fixing plate fixed to the door and at least one frame fixing plate which is rotatably connected to the hinge shaft and fixed to the door frame A lower coupling part having at least one frame fixing plate rotatably connected to the lower portion of the hinge shaft and fixed to the door frame and at least one door fixing plate fixed to the door, and the upper coupling portion at the hinge shaft. It is achieved by an integral hinge comprising a shaft portion formed between the lower coupling portion.

본 발명의 바람직한 특징에 따르면, 상기 힌지축은 상기 상부결합부와 하부 결합부가 위치하는 부분의 직경이 상기 축부보다 작게 형성된다.According to a preferred feature of the invention, the hinge shaft is formed with a diameter smaller than the shaft portion of the upper coupling portion and the lower coupling portion is located.

본 발명의 바람직한 특징에 따르면, 상기 상부결합부 또는 상기 하부결합부 는 상기 힌지축에 결합되는 스페이서를 더 포함한다.According to a preferred feature of the invention, the upper coupling portion or the lower coupling portion further comprises a spacer coupled to the hinge axis.

본 발명의 바람직한 특징에 따르면, 상기 힌지축은 문 높이의 2분의 1보다 긴 길이로 형성된다.According to a preferred feature of the invention, the hinge axis is formed with a length longer than one half of the door height.

본 발명의 바람직한 특징에 따르면, 상기 힌지축의 상단과 하단에는 상기 문 고정플레이트와 틀고정플레이트의 이탈을 방지하는 팁이 형성된다.According to a preferred feature of the invention, the top and bottom of the hinge shaft is formed with a tip to prevent the departure of the door fixing plate and the frame fixing plate.

본 발명의 바람직한 특징에 따르면, 상기 틀고정플레이트와 문고정플레이트는 각각 대향된 양쪽에 상기 힌지축을 중심으로 상하로 번갈아 배열되어 형성된다.According to a preferred feature of the present invention, the frame fixing plate and the door fixing plate are formed to be alternately arranged up and down around the hinge axis on each opposite side.

본 발명의 바람직한 특징에 따르면, 상기 틀고정플레이트와 문고정플레이트는 각각 상기 힌지축으로부터 수직한 방향으로 형성된 연결부와, 상기 연결부로부터 수직한 방향으로 연장 형성된 고정부가 구비된다.According to a preferred feature of the present invention, the frame fixing plate and the door fixing plate are each provided with a connecting portion formed in a direction perpendicular to the hinge axis, and a fixed portion extending in a direction perpendicular to the connecting portion.

본 발명의 바람직한 특징에 따르면, 상기 상부결합부에 위치한 틀고정플레이트와 문고정플레이트는 상기 하부결합부에 위치한 틀고정플레이트와 문고정플레이트보다 넓은 면적의 고정부가 형성된다.According to a preferred feature of the present invention, the frame fixing plate and the door fixing plate located in the upper coupling portion is formed with a fixed area of a larger area than the frame fixing plate and the door fixing plate located in the lower coupling portion.

본 발명의 바람직한 실시예에 따른 일체형 경첩에 의하면, 힌지축이 문고정플레이트와 틀고정플레이트가 연결된 길이보다 길게 형성되어 힌지축의 상단부와 하단부에 상부결합부와 하부결합부가 형성되며 중앙에는 축부가 형성됨에 따라, 기존 경첩 설치시 다수개의 경첩을 일렬로 맞추는 작업 없이, 힌지축을 문틀과 평행한 상태로 고정하면 간편하게 경첩이 설치할 수 있어 설치 시간이 줄어들고 설치 실패율이 현저히 줄어드는 효과가 있다.According to the integral hinge according to the preferred embodiment of the present invention, the hinge shaft is formed longer than the length of the door fixing plate and the frame fixing plate is connected to form the upper coupling portion and the lower coupling portion at the upper and lower ends of the hinge shaft and the shaft portion is formed in the center Accordingly, when the hinges are fixed in parallel with the door frame without the work of aligning a plurality of hinges in the existing hinge installation, the hinge can be easily installed, thereby reducing the installation time and significantly reducing the installation failure rate.

또한 기존에는 문틀에 문을 결합할 때 다수개의 경첩을 준비하여 눈대중으로 하중과 전단력이 많이 발생하는 부위에 다수개의 경첩을 설치했지만, 본 발명 의 일 실시예에 따른 일체형 경첩에 의하면, 문의 종류에 따라 문을 여닫을 때 경첩에 걸리게 되는 전단력의 크기와 위치를 고려하여 경첩을 설계할 수 있고, 각각의 문에 맞는 응력을 가진 경첩을 생산할 수 있어 효율적이다.In addition, in the past, when the door is coupled to the door frame to prepare a plurality of hinges to install a plurality of hinges in the place where the load and shear force is generated a lot of eyes, according to the one-piece hinge according to an embodiment of the present invention, Therefore, the hinge can be designed in consideration of the size and position of the shear force applied to the hinge when opening and closing the door, it is efficient to produce a hinge with a stress for each door.

또한, 문틀과 문 사이에 힌지축이 위치하기 때문에 손가락이 들어갈 수 있는 공간이 차단하여 어린이들에 의한 안전사고를 방지할 수 있는 효과가 있다.In addition, because the hinge axis is located between the door frame and the door is a space for the fingers can be blocked is effective to prevent safety accidents by children.

도 1은 본 발명의 일 실시예에 따른 일체형 경첩의 정면도.1 is a front view of the integral hinge according to an embodiment of the present invention.

도 2는 본 발명의 일 실시예에 따른 일체형 경첩의 분해도.2 is an exploded view of the integral hinge according to an embodiment of the present invention.

도 3은 본 발명의 일 실시예에 따른 일체형 경첩의 사용 상태도.Figure 3 is a state of use of the integral hinge in accordance with an embodiment of the present invention.

도 4는 본 발명의 또 다른 실시예에 따른 일체형 경첩의 정면도.4 is a front view of the unitary hinge according to another embodiment of the present invention.

도 5는 본 발명의 또 다른 실시예에 따른 일체형 경첩의 사용 상태도.Figure 5 is a state of use of the integral hinge in accordance with another embodiment of the present invention.

이하에는, 본 발명의 바람직한 실시예를 첨부도면을 참조하여 상세하게 설명 하되, 이는 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자가 본 발명을 용이하게 실시할 수 있을 정도로 상세하게 설명하기 위한 것이지, 이로 인해 본 발명 의 기술적인 사상 및 범주가 한정되는 것을 의미하지는 않는다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are intended to explain in detail enough to enable those skilled in the art to easily carry out the present invention. Therefore, this does not mean that the technical spirit and scope of the present invention are limited.

본 발명의 바람직한 실시예들에 따른 일체형 경첩(1,2)은, 길게 형성된 힌지축(10)의 상부와 하부에 상부결합부(12)와 하부결합부(16)가 일체로 형성됨에 따라 경첩(1,2) 설치시, 기존의 방식처럼 다수개의 경첩을 일렬로 맞추는 작업이 없이 도, 힌지축(10)을 문틀(F)과 평행한 상태로 고정하면 문의 뒤틀림 현상 없이 간편하게 경첩(1,2)을 설치할 수 있는 것으로, 힌지축(10)과 상기 힌지축(10) 상단에 회전 가능하도록 연결되고, 문틀(F)에 고정되는 적어도 하나이상의 틀고정플레이트(22)와, 문(D)에 고정되는 적어도 하나 이상의 문고정플레이트(20)가 구비되는 상부결합부(12), 상기 힌지축(10) 하단에 회전 가능하도록 연결되고, 문틀(F)에 고 정되는 적어도 하나 이상의 틀고정플레이트(22)와, 문(D)에 고정되는 적어도 하나 이상의 문고정플레이트(20)가 구비되는 하부결합부(16), 상기 힌지축(10)에서 상기 상부결합부(12)와 하부결합부(16) 사이에 형성되는 축부(14)를 포함한다.In the integrated hinges 1 and 2 according to the preferred embodiments of the present invention, the upper coupling portion 12 and the lower coupling portion 16 are integrally formed on the upper and lower portions of the hinge shaft 10 that are elongated. (1,2) When installing, it is possible to fix the hinge shaft 10 in parallel with the door frame (F) without the work of aligning a plurality of hinges in a line as in the conventional method, and the hinge (1, 2) can be installed, the hinge shaft 10 and the hinge shaft 10 is rotatably connected to the upper end, at least one frame fixing plate 22 fixed to the door frame (F), the door (D) At least one door fixing plate 20 is fixed to the upper coupling portion 12 is provided, rotatably connected to the lower end of the hinge shaft 10, at least one frame fixing plate fixed to the door frame (F) 22 and a bottom having at least one door fixing plate 20 fixed to the door D is provided. In the combination unit 16, the hinge shaft 10 includes a shaft portion 14 formed between the upper coupling part 12 and the lower coupling portion (16).

여기서, 힌지축(10)은 문고정플레이트(20)와 틀고정플레이트(22)가 연결되어 회전하는 축에 해당하는 것으로, 도 1에 도시되는 바와 같이, 적어도 하나이상의 문고정플레이트(20)와 틀고정플레이트(22)가 구비되는 상부결합부(12)와 하부결합부(16)가 연결되고, 상기 상부결합부(12)와 하부결합부(16) 사이가 소정거리 이격되도록 형성된 축부(14)가 구비되도록 긴축으로 형성되는 것이 바람직하다.Here, the hinge shaft 10 corresponds to an axis in which the door fixing plate 20 and the frame fixing plate 22 are connected and rotated. As shown in FIG. 1, at least one door fixing plate 20 and The upper coupling portion 12 and the lower coupling portion 16 is connected to the frame fixing plate 22, the shaft portion 14 formed so as to be spaced apart a predetermined distance between the upper coupling portion 12 and the lower coupling portion 16. It is preferable that it is formed to be constricted so as to be provided.

또한 힌지축(10)은 금속 재질로 형성되는 것이 바람직하나, 문(D)이 회전되면서 힌지축(10)에 발생되는 전단력을 견딜 수 있는 어떠한 소재로도 형성될 수 있다.In addition, the hinge shaft 10 is preferably formed of a metal material, but may be formed of any material that can withstand the shear force generated in the hinge shaft 10 as the door (D) is rotated.

문고정플레이트(20)는 상기 힌지축(10)에 회전 가능하도록 결합되는 연결 부(28)와 문(D)에 못이나 나사와 같은 체결 공구로 고정될 수 있도록 통공(26)이 구비된 판형의 고정부(24)로 형성된다.Door fixing plate 20 is a plate-type provided with a through hole 26 to be fixed to the connecting portion 28 rotatably coupled to the hinge shaft 10 and a fastening tool such as nails or screws to the door (D) It is formed of the fixing portion 24.

틀고정플레이트(22)는 상기 힌지축(10)에 회전 가능하도록 결합되는 연결 부(28)와 문틀(F)에 못이나 나사와 같은 체결 공구로 고정될 수 있도록 통공(26)이 구비된 판형의 고정부(24)로 문고정플레이트(20)와 대향되어 형성된다.Frame fixing plate 22 is plate-type provided with a through hole 26 to be fixed to the connecting portion 28 rotatably coupled to the hinge shaft 10 and a fastening tool such as nails or screws to the door frame (F) It is formed to face the door fixing plate 20 to the fixing portion 24 of the.

이때, 문고정플레이트(20)와 틀고정플레이트(22)는 다양한 형태로 형성될 수 있으나, 문고정플레이트(20)와 틀고정플레이트(22)가 받는 문(D)의 하중을 고루 분산시키기 위하여 힌지축(10)을 기준으로 대칭된 모양으로 형성되는 것이 바람직하다.At this time, the door fixing plate 20 and the frame fixing plate 22 may be formed in various forms, in order to evenly distribute the load of the door (D) received by the door fixing plate 20 and the frame fixing plate 22 evenly. It is preferably formed in a symmetrical shape with respect to the hinge axis (10).

상부결합부(12)는 적어도 하나 이상의 문고정플레이트(20)와 틀고정플레이트(22)로 형성되며 상기 힌지축(10)의 상부에 결합되어 형성된다.The upper coupling part 12 is formed of at least one door fixing plate 20 and the frame fixing plate 22 and is coupled to the upper portion of the hinge shaft 10.

하부결합부(16)는 적어도 하나 이상의 문고정플레이트(20)와 틀고정플레이트(22)로 형성되며 상기 상부결합부(12)와 소정간격 이격되어 상기 힌지축(10)의 하부에 형성된다.The lower coupling part 16 is formed of at least one door fixing plate 20 and a frame fixing plate 22 and is formed below the hinge shaft 10 at a predetermined interval from the upper coupling part 12.

이때, 상부결합부(12)는 하부결합부(16)보다 횡압력과 전단력을 많이 받게 되므로 상부결합부(12)에 문고정플레이트(20)와 틀고정플레이트(22)를 다수개 설치하는 것이 바람직하다.At this time, since the upper coupling portion 12 receives more lateral pressure and shear force than the lower coupling portion 16, it is preferable to install a plurality of door fixing plates 20 and frame fixing plates 22 on the upper coupling portion 12. Do.

축부(14)는 힌지축(10)에서 상부결합부(12)와 하부결합부(16) 사이에 위치한 부분으로 상부결합부(12)와 하부결합부(16)를 이어준다.The shaft portion 14 is a portion located between the upper coupling portion 12 and the lower coupling portion 16 in the hinge shaft 10 connects the upper coupling portion 12 and the lower coupling portion 16.

이때, 축부(14)는 외부에서 힌지축(10)과 상기 상부결합부(12)와 하부결합부(16)의 연결이 돌출되지 않고 매끄럽게 보일 수 있도록 힌지축(10)에서 상부결합부(12)와 하부결합부(16)가 위치한 부분보다 직경이 크게 형성될 수 있다.이로 인해 축부(14)의 상부에는 단턱이 구비되고 상부결합부(12)가 단턱에 지지되어 축 부(14)의 하방으로 이동되는 것이 방지된다. 바람직하게는 상부결합부(12)에는 문고정플레이트 또는 틀고정플레이트의 위치에 이들을 대신하여 일정길이를 갖는 중공의 원통형상의 스페이서를 두어 축부(14)의 소정의 위치에 단턱이 위치되더라도 필요에 따라 상부결합부에 위치되는 문고정플레이트 또는 틀고정플레이트의 수를 조절할 수 있다.마찬가지로 이와 대칭되도록 축부(14)의 하부에는 단턱이 구비되고 하부결합부(16)가 단턱에 지지되어 축부(14)의 상방으로 이동되는 것이 방지된다. 바람직하게는 하부결합부(16)에는 문고정플레이트 또는 틀고정플레이트의 위치에 이들을 대신하여 일정길이를 갖는 중공의 원통형상의 스페이서를 두어 축부(14)의 소정의 위치에 단턱이 위치되더라도 필요에 따라 하부결합부에 위치되는 문고정플레이트 또는 틀고정플레이트의 수를 조절할 수 있다.At this time, the shaft portion 14 is the upper coupling portion 12 in the hinge shaft 10 so that the connection between the hinge shaft 10 and the upper coupling portion 12 and the lower coupling portion 16 from the outside can be seen smooth. ) And the diameter of the lower coupling portion 16 may be larger than the position where the lower coupling portion 16 is located. It is prevented from moving downward. Preferably, the upper coupling portion 12 has a hollow cylindrical spacer having a predetermined length in place of the door fixing plate or the frame fixing plate in place of these, so that even if the step is located at a predetermined position of the shaft portion 14 as necessary. The number of the door fixing plate or the frame fixing plate positioned in the upper coupling portion can be adjusted. It is prevented to move upward of. Preferably, the lower coupling portion 16 has a hollow cylindrical spacer having a predetermined length in place of the door fixing plate or the frame fixing plate in place of these, so that even if the step is located at a predetermined position of the shaft portion 14 as necessary. The number of door fixing plates or frame fixing plates located on the lower coupling part can be adjusted.

본 발명의 바람직한 실시예에 따른 일체형 경첩(1)은, 도 3에 도시되는 바와 같이, 문틀(F)에 문(D)이 결합될 때 문(D)의 균형을 유지하고 문(D)을 안정감 있게 여닫도록 하기 위하여 상기 힌지축(10)은 문높이의 2분의 1보다 길게 형성되는 것이 바람직하다.The integral hinge 1 according to the preferred embodiment of the present invention, as shown in Figure 3, when the door (D) is coupled to the door frame (F) to maintain the balance of the door (D) and the door (D) In order to open and close with a sense of stability, the hinge shaft 10 is preferably formed longer than a half of the height of the door.

또한, 도 2에 도시된 바와 같이, 문고정플레이트(20)와 틀고정플레이트(22) 가 힌지축(10)에서 이탈되지 않도록 힌지축(10)의 상단면과 하단면에 힌지축(10)의 직경보다 큰 팁(30)이 결합될 수 있으며, 상기 팁(30)은 다양한 형태로 형성될 수 있지만, 외부에서 상기 문고정플레이트(20)와 틀고정플레이트(22)와 힌지축(10)과 팁(30)의 결합이 매끄럽게 보일 수 있도록 팁(30)의 직경은 축부(14)의 직경과 비슷하게 형성되는 것이 바람직하다.In addition, as shown in FIG. 2, the hinge shaft 10 on the top and bottom surfaces of the hinge shaft 10 so that the door fixing plate 20 and the frame fixing plate 22 are not separated from the hinge shaft 10. The tip 30 larger than the diameter of the can be coupled, the tip 30 may be formed in various forms, but the door fixing plate 20 and the frame fixing plate 22 and the hinge shaft 10 from the outside The diameter of the tip 30 is preferably formed to be similar to the diameter of the shaft portion 14 so that the engagement of the tip 30 with the tip 30 may be smooth.

한편, 본 발명의 바람직한 실시예에 따른 일체형 경첩(1, 2)은, 도 1에 도시 된 바와 같이, 문고정플레이트(20)와 틀고정플레이트(22)가 힌지축(10)을 중심으로 대향된 위치로 배치되면서, 회전되어도 서로 겹쳐지지 않도록 상하로 번갈아 배열 될 수 있다.On the other hand, integral hinges (1, 2) according to a preferred embodiment of the present invention, as shown in Figure 1, the door fixing plate 20 and the frame fixing plate 22 is opposed to the hinge axis 10 While being disposed in a predetermined position, they may be alternately arranged up and down so as not to overlap each other even if they are rotated.

이때, 힌지축(10)에 의해 지지되는 문고정플레이트(20)와 틀고정플레이트(22)의 길이가 같게 형성되면 경첩(1,2)에 의해 지지되는 문(D)의 하중이 고르게 분포될 수 있다.At this time, when the length of the door fixing plate 20 and the frame fixing plate 22 supported by the hinge shaft 10 is formed to be the same, the load of the door D supported by the hinges 1 and 2 may be evenly distributed. Can be.

본 발명의 바람직한 실시예에 따른 일체형 경첩(1, 2)은 문고정플레이트(20) 와 틀고정플레이트(22)는 힌지축(10)에 연결되는 연결부(28)와 문(D) 또는 문틀(F) 에 고정되는 판형의 고정부(24)로 형성되는데, 상기 연결부(28)와 고정부(24)는, 도1에 도시된 바와 같이, 힌지축(10)으로부터 수직한 방향으로 일체로 형성된 판형의 일반적인 형태를 취할 수 있고, 또한 도 4에 도시된 바와 같이, 고정부(24)의 결합 면적을 넓히기 위해 고정부(24)는 상기 연결부(28)로 부터 수직한 방향으로 연장되어 형성될 수 있다.Integral hinges (1, 2) according to a preferred embodiment of the present invention, the door fixing plate 20 and the frame fixing plate 22 is connected to the hinge shaft 10 and the door (D) or door frame ( It is formed of a plate-shaped fixing portion 24 fixed to the F), the connecting portion 28 and the fixing portion 24, as shown in Figure 1, integrally formed in a direction perpendicular to the hinge shaft 10 4, the fixing part 24 extends in a vertical direction from the connecting part 28 so as to widen the engagement area of the fixing part 24. Can be.

또한 상기한 바와 같이 문고정플레이트(20)와 틀고정플레이트(22)의 고정 부(24)가 연결부(28)로부터 수직한 방향으로 연장 형성된 경우, 횡압력과 전단력을 많이 받는 상부결합부(12)에 위치한 문고정플레이트(20)와 틀고정플레이트(22)의 고정부(24)는 하부결합부(16)에 위치한 문고정플레이트(20)와 틀고정플레이트(22) 의 고정부(24) 면적보다 넓게 형성되어 체결력을 높이는 것이 바람직하다.In addition, as described above, when the fixing part 24 of the door fixing plate 20 and the frame fixing plate 22 extends in the vertical direction from the connecting part 28, the upper coupling part 12 receiving a lot of lateral pressure and shear force The fixing part 24 of the door fixing plate 20 and the frame fixing plate 22 located in the area of the fixing part 24 of the door fixing plate 20 and the frame fixing plate 22 located in the lower coupling part 16 is provided. It is desirable to form a wider to increase the fastening force.

전술한 바와 같이 본 발명의 일 실시예에 따른 일체형 경첩(1, 2)은, 힌지축(10)이 문고정플레이트(20)와 틀고정플레이트(22)가 연결된 길이보다 길게 형성 되어 힌지축(10)의 상부와 하부에 상부결합부(12)와 하부결합부(16)가 형성되며 중앙에는 축부(14)가 형성됨에 따라 기존의 경첩 설치시 문이 뒤틀리지 않도록 다수개의 경첩을 일렬로 맞추는 작업 없이 힌지축(10)을 문틀(F)과 평행한 상태로 고정 하면 간편하게 경첩(1, 2)을 설치할 수 있어 설치 시간이 줄어들고 설치 실패율이 현저히 줄어드는 효과가 있다.As described above, the integrated hinges 1 and 2 according to an embodiment of the present invention have a hinge shaft 10 formed longer than the length of the door fixing plate 20 and the frame fixing plate 22 are connected to the hinge shaft ( The upper coupling portion 12 and the lower coupling portion 16 is formed on the upper and lower portions of 10), and the shaft portion 14 is formed in the center, so that a plurality of hinges are aligned in a row so that the door is not twisted when the existing hinge is installed. Fixing the hinge shaft 10 in parallel with the door frame (F) without work can be easily installed hinges (1, 2) has the effect of reducing the installation time and installation failure rate significantly.

또한 기존에는 문틀(F)에 문(D)을 결합할 때 눈대중으로 전단력이 많이 발생하는 부위에 다수개의 경첩을 설치했지만, 본 발명의 일 실시예에 따른 일체형 경첩(1, 2)에 의하면, 문(D)의 종류에 따라 문을 여닫을 때 경첩(1, 2)에 걸리게 되는 전단력의 크기와 위치를 고려하여 경첩(1, 2)을 설계할 수 있고, 문(D)과 세트로 생산할 수 있어 각각의 문(D)에 맞는 응력을 가진 경첩을 생산할 수 있어 효율적이다.In addition, in the past, when the door (F) when the door (D) is coupled to a plurality of hinges to the site where the shear force is generated a lot in the eye mass, according to the integral hinges (1, 2) according to an embodiment of the present invention, According to the type of door (D), the hinges (1, 2) can be designed in consideration of the size and position of the shear force applied to the hinges (1, 2) when opening and closing the door, and can be produced as a door (D) and a set Therefore, it is possible to produce a hinge with a stress for each door (D) is efficient.

Claims (8)

힌지축; Hinge axis; 상기 힌지축 상부에 회전 가능하도록 연결되고, 문틀에 고정되는 적어도 하나 이상의 틀고정플레이트와, 문에 고정되는 적어도 하나 이상의 문고정플레이트가 구비되는 상부결합부; An upper coupling part rotatably connected to an upper portion of the hinge shaft and provided with at least one frame fixing plate fixed to the door frame, and at least one door fixing plate fixed to the door; 상기 힌지축 하부에 회전 가능하도록 연결되고, 문틀에 고정되는 적어도 하나 이상의 틀고정플레이트와, 문에 고정되는 적어도 하나 이상의 문고정플레이트가 구비되는 하부결합부; A lower coupling part rotatably connected to a lower portion of the hinge shaft and provided with at least one frame fixing plate fixed to the door frame, and at least one door fixing plate fixed to the door; 상기 힌지축에서 상기 상부결합부와 하부결합부 사이에 형성되는 축부;를 포함하는 것을 특징으로 하는 일체형 경첩.And a shaft portion formed between the upper coupling portion and the lower coupling portion at the hinge shaft. 제 1항에 있어서, The method of claim 1, 상기 힌지축은 상기 상부결합부와 하부결합부가 위치하는 부분의 직경이 상 기 축부보다 작게 형성되는 것을 특징으로 하는 일체형 경첩.The hinge shaft is a one-piece hinge, characterized in that the diameter of the portion where the upper coupling portion and the lower coupling portion is located smaller than the shaft portion. 제 1항에 있어서, The method of claim 1, 상기 상부결합부 또는 상기 하부결합부는 상기 힌지축에 결합되는 스페이서를 더 포함하는 것을 특징으로 하는 일체형 경첩.And the upper coupling portion or the lower coupling portion further comprises a spacer coupled to the hinge shaft. 제 1항에 있어서, The method of claim 1, 상기 힌지축은 문높이의 2분의 1보다 긴 길이로 형성되는 것을 특징으로 하 는 일체형 경첩.The hinge shaft is a one-piece hinge, characterized in that formed in a length longer than half the height of the door. 제 1항에 있어서, The method of claim 1, 상기 힌지축의 상단과 하단에는 상기 문고정플레이트와 틀고정플레이트의 이 탈을 방지하는 팁이 형성되는 것을 특징으로 하는 일체형 경첩.The hinge hinge, characterized in that the top and bottom of the hinge shaft is formed with a tip for preventing the door fixing plate and the frame fixing plate from being separated. 제 1항에 있어서, The method of claim 1, 상기 틀고정플레이트와 문고정플레이트는 각각 대향된 양쪽에 상기 힌지축을 중심으로 상하로 번갈아 배열되어 형성되는 것을 특징으로 하는 일체형 경첩.The frame fixing plate and the door fixing plate are integral hinges, characterized in that formed on the opposite sides alternately arranged up and down around the hinge axis. 제 6항에 있어서, The method of claim 6, 상기 틀고정플레이트와 문고정플레이트는 각각 상기 힌지축으로부터 수직한 방향으로 형성된 연결부와, 상기 연결부로부터 수직한 방향으로 연장 형성된 고정 부가 구비된 것을 특징으로 하는 일체형 경첩.The frame fixing plate and the door fixing plate are integral hinges, characterized in that each provided with a connecting portion formed in a direction perpendicular to the hinge axis, and a fixing portion extending in a vertical direction from the connecting portion. 제 7항에 있어서, 상기 상부결합부에 위치한 틀고정플레이트와 문고정플레이트는 상기 하부결합부에 위치한 틀고정플레이트와 문고정플레이트보다 넓은 면적의 고정부가 형성되는 것을 특징으로 하는 일체형 경첩.8. The unitary hinge of claim 7, wherein the frame fixing plate and the door fixing plate positioned at the upper coupling portion have a larger area than the frame fixing plate and the door fixing plate positioned at the lower coupling portion.
PCT/KR2015/012452 2015-11-19 2015-11-19 Integrated hinge Ceased WO2017086505A1 (en)

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JPH1018674A (en) * 1996-07-01 1998-01-20 Yagi:Kk Cap for hinge
US20020116788A1 (en) * 2001-02-09 2002-08-29 Daniel Pompei Gravity hinge
US20070182202A1 (en) * 2004-08-05 2007-08-09 Ryan Brenneman Composite cargo door/ramp
KR100831608B1 (en) * 2007-05-18 2008-05-23 탁동호 Door hinge
KR20120002040U (en) * 2010-09-10 2012-03-20 이현호 Coaxial mailbox hinge

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CN200999538Y (en) * 2007-01-25 2008-01-02 王小林 Anti-theft automatically shutting and stopping hinge
CN201794415U (en) * 2010-09-08 2011-04-13 赵西敬 Connecting hinge of aluminum alloy door
CN203925072U (en) * 2014-05-26 2014-11-05 国网山东省电力公司菏泽供电公司 A kind of hinge arrangement
CN204060278U (en) * 2014-09-03 2014-12-31 安徽安凯汽车股份有限公司 A kind of coach compartment door hinge

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Publication number Priority date Publication date Assignee Title
JPH1018674A (en) * 1996-07-01 1998-01-20 Yagi:Kk Cap for hinge
US20020116788A1 (en) * 2001-02-09 2002-08-29 Daniel Pompei Gravity hinge
US20070182202A1 (en) * 2004-08-05 2007-08-09 Ryan Brenneman Composite cargo door/ramp
KR100831608B1 (en) * 2007-05-18 2008-05-23 탁동호 Door hinge
KR20120002040U (en) * 2010-09-10 2012-03-20 이현호 Coaxial mailbox hinge

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