KR100449588B1 - power serve structure of door switching - Google Patents

power serve structure of door switching Download PDF

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Publication number
KR100449588B1
KR100449588B1 KR10-2001-0047278A KR20010047278A KR100449588B1 KR 100449588 B1 KR100449588 B1 KR 100449588B1 KR 20010047278 A KR20010047278 A KR 20010047278A KR 100449588 B1 KR100449588 B1 KR 100449588B1
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KR
South Korea
Prior art keywords
door
hinge
power transmission
gear
gears
Prior art date
Application number
KR10-2001-0047278A
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Korean (ko)
Other versions
KR20030013003A (en
Inventor
손제익
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손제익
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Priority to KR10-2001-0047278A priority Critical patent/KR100449588B1/en
Publication of KR20030013003A publication Critical patent/KR20030013003A/en
Application granted granted Critical
Publication of KR100449588B1 publication Critical patent/KR100449588B1/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
    • E05F1/14—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with double-acting springs, e.g. for closing and opening or checking and closing no material
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
    • E05Y2201/404—Function thereof
    • E05Y2201/41—Function thereof for closing
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
    • E05Y2201/404—Function thereof
    • E05Y2201/422—Function thereof for opening
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
    • E05Y2201/47—Springs
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/60—Suspension or transmission members; Accessories therefor
    • E05Y2201/622—Suspension or transmission members elements
    • E05Y2201/628—Bearings
    • E05Y2201/636—Universal or ball joints
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/60—Suspension or transmission members; Accessories therefor
    • E05Y2201/622—Suspension or transmission members elements
    • E05Y2201/71—Toothed gearing
    • E05Y2201/716—Pinions
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/60—Suspension or transmission members; Accessories therefor
    • E05Y2201/622—Suspension or transmission members elements
    • E05Y2201/71—Toothed gearing
    • E05Y2201/722—Racks

Landscapes

  • Transmission Devices (AREA)
  • Power-Operated Mechanisms For Wings (AREA)

Abstract

본 발명은 도어 개폐장치에 있어서 동력전달구조에 관한 발명이다.The present invention relates to a power transmission structure in the door opening and closing apparatus.

본 발명 동력전달구조는 도어의 힌지에 축설되는 동력전달기어를 힌지의 상하부에 축설하여 도어복귀기능을 갖는 랙 기어와 치합되게 하고 힌지의 상하부에 축설되는 상하부 동력전달기어의 힌지공에는 힌지를 회전시키는 작동돌기를 돌설하고 힌지의 주벽상하에는 동력전달 돌기와 각각 접촉되어 동력전달 상하부 기어를 회전시키는 작동돌기를 돌설하여 도어가 오픈되는 방향에 따라서 동력전달 상하부기어가 선택적으로 작동될 수 있도록 한 것이다.The power transmission structure of the present invention, the power transmission gear to be built in the hinge of the door is arranged in the upper and lower parts of the hinge to engage with the rack gear having a door return function, and the hinge hole of the upper and lower power transmission gear built in the upper and lower parts of the hinge rotates the hinge. The upper and lower gears of the hinge are projected to contact the power transmission protrusions above and below the hinge wall to rotate the power transmission upper and lower gears so that the power transmission upper and lower gears can be selectively operated according to the direction in which the door is opened.

Description

도어 개폐장치에 있어서 동력전달구조{power serve structure of door switching}Power serve structure of door switching device

본 발명은 건물의 입구나 현관등의 출입구에 설치되어 도어의 일측에 형성된 힌지를 기점으로 회전동작에 의해 양쪽 방향으로 오픈될 수 있게 하는 도어 개폐장치의 구성 중 동력전달구조에 관한 발명이다.The present invention relates to a power transmission structure of a door opening and closing device which is installed at an entrance or entrance of a building to open in both directions by a rotational motion based on a hinge formed at one side of a door.

본 발명에서 동력전달구조라 함은 사람의 힘에 의하여 도어가 강제적으롤 열렸다가 자동적으로 닫히게 될 때 동력을 전달하는 것을 말하는 것이다.In the present invention, the power transmission structure refers to the transmission of power when the door is forcibly opened and automatically closed by the force of a person.

본 발명 동력전달장치는 본 발명출원인의 특허출원 제2000-19300호와 실용신안등록 제194383호 및 특허출원 제2001-40206호의 도어 개폐장치에 적용되는 것으로 도어힌지의 구조와 동력전달기어의 구조를 개선한 것이다.The power transmission device of the present invention is applied to the door opening and closing device of the patent application No. 2000-19300 and the utility model registration No. 194383 and the patent application No. 2001-40206 of the applicant of the present invention, the structure of the door hinge and the structure of the power transmission gear. It is an improvement.

상기한 본인의 선출원 특허와 선등록 실용신안의 도어개폐장치의 구성중 동력전달 구조를 보면 도어의 힌지에 고정되어 도어가 개폐시에 회전되는 원동기어의 외주면 일부에만 치차를 형성하여 원동기어의 전후방에 설치되는 랙기어와 치합되면서 랙기어를 이동시켜 랙기어와 일체로 형성된 작동로드에 탄설된 도어복귀스프링이 수축되었다가 탄발되는 도어복귀스프르링에 의하여 도어가 복귀되도록 하는 동력전달장치를 채택하고 있는 것이다.Looking at the power transmission structure of the door opening and closing device of the patent application and the registered utility model described above, the gear is fixed to the hinge of the door to form a gear only on a part of the outer circumferential surface of the motive gear that rotates when the door is opened and closed. It adopts a power transmission device that moves the rack gear while being engaged with the rack gear installed in the door, so that the door return spring installed on the working rod formed integrally with the rack gear is contracted and the door is returned by the door return spring springed. It is.

본 발명은 상기한 원동기어의 외주면 일부에만 치차가 형성됨으로서 발생되는 문제점 등을 개선시키기 위한 것으로 원동기어의 구성이 외주면 일측에만 치차가 형성된 것은 제작상의 불편함과 동작시에 치차가 치합되면서 발생되는 소음이나치합상태가 불량한 등의 문제점을 해결하여 원활한 동력전달이 이루워지도록 하기 위한 것이다.The present invention is to improve the problems caused by the formation of the gear only on a portion of the outer peripheral surface of the above-mentioned motive gear. To solve the problems such as noise or poor state of the match is to achieve a smooth power transmission.

본 발명은 상기한 문제점을 해결하기 위하여 외주면 전체에 치차가 형성된 두개의 원동기어를 도어힌지에 고정시키고 두개의 원동기어의 치차와 랙기어의 치차가 항시 치합되어 있는 상태에서 작동되도록 하였으며 도어힌지의 상하부로 설치되는 원동기어에는 도어가 안쪽 또는 바깥쪽으로 열릴때 원동기어가 각각 동작되도록 하기 위하여 원동기어의 힌지공 내벽에 걸림돌기를 각각 형성하고 힌지의 외벽 상하부에도 각각 걸림돌기를 돌설하여 도어복귀스프링이 탄발되면서 랙기어가 동작될때 랙기어와 치합된 원동기어가 회전되면서 힌지를 회전시켜서 도어가 원상으로 복귀되도록 함으로서 소음방지와 원활한 작동을 기대할 수 있도록 한것이다.The present invention is to solve the above problems to fix the two motive gears formed on the entire outer peripheral surface to the door hinge and to operate the gears of the two motive gear and the gear of the rack gear is always engaged. In order to operate the main gears when the door is opened inward or outward, the main gears installed in the upper and lower parts respectively have engaging projections on the inner wall of the hinge hole of the primary gear and protrude the locking projections on the upper and lower parts of the outer wall of the hinge. When the rack gear is operated, the main gear engaged with the rack gear is rotated to rotate the hinge so that the door returns to its original position, so that noise prevention and smooth operation can be expected.

도 1은 본 발명의 정면도1 is a front view of the present invention

도 2는 본 발명의 평면도2 is a plan view of the present invention

도 3은 본 발명의 요부 분해사시도Figure 3 is an exploded perspective view of the main part of the present invention

도 4는 본 발명의 요부 평면도4 is a plan view of main parts of the present invention;

도 5는 본 발명의 작동상태를 보인 평면도5 is a plan view showing an operating state of the present invention

〈도면의 주요부분에 대한 부호의 설명〉<Explanation of symbols for main parts of drawing>

(h) 힌지 (d) 도어(h) hinge (d) door

(20)(20') 랙기어 (22)(22') 도어복귀스프링(20) (20 ') Rack Gear (22) (22') Door Return Spring

(23)(23') 작동로드 (30) 제1동력 전달기어(23) (23 ') actuation rod (30) primary power transmission gear

(31) 제2동력전달기어 (40)(41) 상하부축(31) 2nd power transmission gear (40) (41) Upper and lower shaft

(50) 회전체 (100)(100') 상하부원동기어(50) Rotating Body (100) (100 ') Upper and Lower Drive Gears

(110)(110') 힌지공 (120)(120') 원동기어작동돌기(110) (110 ') hinge hole (120) (120') prime mover

(130)(130') 도어작동돌기(130) (130 ') door operating protrusion

힌지(h)를 구비하는 도어(d)와 원동기어의 전후방에 치합되어 도어복귀 작용을 하게 되는 랙기어(20)(20')와 상기 랙기어(20)(20')에서 연장되어 도어복귀스프링(22)(22')이 탄설되는 작동로드(23)(23')와 상기 힌지(h) 하단에 장착되는 제1동력전달기어(30)와 이에 치합되는 제2동력전달기어(31)와 상기 제2동력전달기어(31)의 상하부축(40)(41)과 일체로 형성된 회전체(50)로 구성되는 도어개폐장치에 있어서 상기 힌지(h)의 상하부에 축설되며 외주면 전체가 치차로 형성된 상하부원동기어(100)(100')를 상기 랙기어(20)(20')와 치합되게 하고 상기 상하부원동기어 (100)(100')의 힌지공(110)(110') 내벽에는 상하부원동기어 작동돌기(120)(120')를 돌설하고 상기 힌지(h)의 외벽 상하부에는 상기 상하부원동기어(100)(100')의 작동돌기(120)(120')에 접촉되어 도어(d)를 회전시키는 도어작동돌기(130)(130')를 돌설하여서 된 것이다.It is extended from the rack gears 20 and 20 'and the rack gears 20 and 20' which are engaged with the door d having the hinge h and front and rear of the motive gear to perform the door return action. Actuating rods 23 and 23 'on which the springs 22 and 22' are coalesced, and a first power transmission gear 30 mounted on the lower end of the hinge h, and a second power transmission gear 31 engaged therewith. And in the door opening and closing device consisting of a rotating body 50 formed integrally with the upper and lower shafts 40, 41 of the second power transmission gear 31 is installed in the upper and lower parts of the hinge (h), the entire outer peripheral surface is gear The upper and lower drive gears (100, 100 ') formed to engage with the rack gears 20, 20' and the inner wall of the hinge hole (110, 110 ') of the upper and lower drive gears (100, 100') The upper and lower drive gear operating protrusions 120 and 120 'are projected and the upper and lower parts of the outer wall of the hinge h are in contact with the operating protrusions 120 and 120' of the upper and lower drive gears 100 and 100 '. d) door operation to rotate Is a hayeoseo dolseol the group 130, 130 '.

도면중 미설명부호 (C)는 케이싱, (60)은 작동로드 고정브라켓, (70)은 상기회전체(50)에 내장되는 스틸볼, (71)은 회전체에 내장된 스프링탄발력조절부재, (72)는 스프링, (73)은 회전체의 하우징, (74)는 하우징의 두꺼운벽, (75)는 하우징의 얇은벽을 보인 것이다.In the drawings, reference numeral (C) is a casing, 60 is a working rod fixing bracket, 70 is a steel ball embedded in the rotating body 50, 71 is a spring elastic force adjusting member embedded in the rotating body , 72 is a spring, 73 is a housing of a rotating body, 74 is a thick wall of a housing, and 75 is a thin wall of a housing.

상기한 구조로 이루워진 본 발명의 작용효과를 설명한다.It demonstrates the effect of the present invention made of the above structure.

도 2는 본 발명이 적용된 도어 개폐장치의 평면도로서 도 2의 상태는 도어(d)가 도어 복귀스프링(22)(22')의 탄발력에 의하여 닫혀 있는 상태이다.2 is a plan view of the door opening and closing apparatus to which the present invention is applied, and the state of FIG. 2 is a state in which the door d is closed by the elastic force of the door return springs 22 and 22 '.

이와 같은 상태에서 도어(d)에 힘을 가해 오픈시키면 도어(d)가 오픈되는 방향에 따라서 힌지(h)에 축설된 상하부원동기어(100)(100')가 선택적으로 회전하게 되는 것이다.In such a state, when the door d is opened by applying force, the upper and lower driving gears 100 and 100 ′ arranged on the hinge h are selectively rotated according to the direction in which the door d is opened.

도5의 작동상태는 도어(d)를 시계바늘 방향으로 회전되록 오픈시켰을 때 작동되는 것을 보인 것으로 도 2의 상태에서는 힌지(h) 상부에 돌설된 도어작동돌기 (130)가 상부원동기어(100)에 형성된 상부원동기어 작동돌기(120)에 접촉되어 상부원동기어(100) 만이 회전동작을 하는 상태이며, 도어(d)를 시계바늘 반대방향으로 회전되도록 오픈시켰을때는 힌지(h) 하부에 돌설된 도어작동돌기(130')가 하부원동기어(100')에 형성된 하부원동기어 작동돌기(120')에 접촉되어 하부원동기어(100')만이 회전동작을 하게 되는 것이다.The operating state of FIG. 5 is shown to be operated when the door (d) is opened to rotate in a clockwise direction. In the state of FIG. 2, the door operating protrusion 130 protruding from the hinge (h) is the upper driving gear (100). The upper driving gear 100 is formed in contact with the upper driving gear (120) formed in the state that only the upper driving gear 100 rotates, and when the door (d) is opened to rotate in a counterclockwise direction, the lower protrusion (h) The door operating protrusion 130 ′ is in contact with the lower driving gear operating protrusion 120 ′ formed in the lower driving gear 100 ′ so that only the lower driving gear 100 ′ rotates.

이와 같이 도어(d)가 열리는 방향에 따라서 상하부원동기어(100)(100')가 작동하게 되며 상기 상하부원동기어(100)(100')에 치합된 랙기(20)(20')가 이동되면서 작동로드(23)(23')에 탄설된 도어복귀스프링(22)(22')이 수축되어 있는 상태가 되며 상기 상하부원동기어(100)가 회전됨과 동시에 힌지(h) 하단에 장착된 제1동력전달기어(30)의 회전으로 이에 치합된 제2동력 전달기어(30')가 회전하게 되는 것으로 회전체(50)의 상부축(40)에 축설된 제2동력 전달기어(30')의 회전으로 인하여 회전체(50)가 회전하게 되고 회전체(50)에 장착되어 스프링(72)의 탄발력으로 하우징((73)의 두꺼운벽(74)의 내면에 밀착되어 있던 스틸볼(71)이 하우징(73)의 얇은벽(75) 쪽으로 이동하면서 스프링(72)의 탄발력이 점차 약해지면서 도어(d)가 가볍게 열리게 되고 도어복귀스프링(22)(22')의 탄발력에 의하여 도어(d)가 닫힐 때는 하우징(73)의 얇은벽(75) 쪽에 있던 회전체(50)의 스틸볼(71)이 하우징 (73)의 두꺼운벽(74) 쪽으로 회전체(50)와 함께 이동되는 것으로 두꺼운 벽(74)에 의하여 스틸볼(71)에 받쳐 있는 스프링(72)이 수축되면서 탄발력은 점차 강해짐으로 도어(d)가 서서히 닫히게 되는 것이다.Thus, the upper and lower driving gears 100 and 100 'are operated according to the direction in which the door d is opened, and the racks 20 and 20' engaged with the upper and lower driving gears 100 and 100 'are moved. The door return springs 22 and 22 'installed in the operating rods 23 and 23' are in a contracted state, and the upper and lower motive gears 100 are rotated and the first mounted at the bottom of the hinge h. Rotation of the power transmission gear 30 causes the second power transmission gear 30 'coupled to the rotation of the second power transmission gear 30' built on the upper shaft 40 of the rotating body 50 to rotate. Due to the rotation, the rotating body 50 rotates and is mounted on the rotating body 50, and the steel ball 71 closely adhered to the inner surface of the thick wall 74 of the housing 73 by the elastic force of the spring 72. As the elastic force of the spring 72 is gradually weakened while moving toward the thin wall 75 of the housing 73, the door d is opened lightly and the elastic force of the door return springs 22 and 22 'is applied. When the door d is closed by the steel ball 71 of the rotating body 50 on the thin wall 75 side of the housing 73 together with the rotating body 50 toward the thick wall 74 of the housing 73. As the spring 72 supported by the steel ball 71 is contracted by the thick wall 74 to be moved, the resilience force is gradually increased so that the door d is gradually closed.

이상은 본 발명이 적용된 도어 개폐장치의 전체적인 작용효과를 설명한 것이다.The above has described the overall operation and effect of the door opening and closing apparatus to which the present invention is applied.

본 발명 도어복귀구조는 랙기어와 치합되는 상하부원동기어(100)(100')를 힌지(h)의 상하부에 설치하고 상하부원동기어의 외주면 전체에 치차를 형성시키므로서 랙기어와의 치합이 원활하게 이루워지고 작동 오차범위가 크게 줄어드는 것이다.In the door return structure of the present invention, the upper and lower driving gears 100 and 100 'which are engaged with the rack gears are installed at the upper and lower parts of the hinge h, and the teeth are smoothly engaged with the rack gears by forming teeth on the entire outer circumferential surface of the upper and lower driving gears. The operating error range is greatly reduced.

상기한 구성 및 작용효과를 가지게 되는 본 발명은 힌지에 축설되어 동력전달기능을 갖는 원동기어를 힌지의 상하부에 축설하여 각각 동작되게 함으로서 소음발생을 최소화 할 수가 있으며 동력전달기어의 마모율을 크게 낮출 수 있는 효과를 얻을 수가 있는 것이다.The present invention having the above-described configuration and operation effects can be minimized by greatly reducing the wear rate of the power transmission gear by placing the motive gear having a power transmission function at the upper and lower sides of the hinge to be operated. You can get the effect.

Claims (1)

힌지(h)를 구비하는 도어(d)와 원동기어의 전후방에 치합되어 도어복귀 작용을 하게 되는 랙기어(20)(20')와 상기 랙기어(20)(20')에서 연장되어 도어복귀스프링(22)(22')이 탄설되는 작동로드(23)(23')와 상기 힌지(h) 하단에 장착되는 제1동력전달기어(30)와 이에 치합되는 제2동력전달기어(31)와 상기 제2동력전달기어(31)의 상하부축(40)(41)과 일체로 형성된 회전체(50)로 구성되는 도어 개폐장치에 있어서 상기 힌지(h)의 상하부에 축설되며 외주면 전체가 치차로 형성된 상하부원동기어(100)(100')를 상기 랙기어(20)(20')와 치합되게 하고 상기 상하부원동기어 (100)(100')의 힌지공(110)(110') 내벽에는 상하부원동기어 작동돌기(120)(120')를 돌설하고 상기 힌지(h)의 외벽 상하부에는 상기 상하부원동기어(100)(100')의 작동돌기(120)(120')에 접촉되어 도어(d)를 회전시키는 도어작동돌기(130)(130')를 돌설하여서 된 것을 특징으로 하는 도어 개폐장치에 있어서 동력전달구조.It is extended from the rack gears 20 and 20 'and the rack gears 20 and 20' which are engaged with the door d having the hinge h and front and rear of the motive gear to perform the door return action. Actuating rods 23 and 23 'on which the springs 22 and 22' are coalesced, and a first power transmission gear 30 mounted on the lower end of the hinge h, and a second power transmission gear 31 engaged therewith. In the door opening and closing device consisting of a rotating body 50 formed integrally with the upper and lower shafts 40 and 41 of the second power transmission gear 31 is installed in the upper and lower parts of the hinge (h) and the entire outer peripheral surface is geared The upper and lower drive gears (100, 100 ') formed to engage with the rack gears 20, 20' and the inner wall of the hinge hole (110, 110 ') of the upper and lower drive gears (100, 100') The upper and lower drive gear operating protrusions 120 and 120 'are projected and the upper and lower parts of the outer wall of the hinge h are in contact with the operating protrusions 120 and 120' of the upper and lower drive gears 100 and 100 '. d) door operation to rotate The power transmission structure according to the door opening and closing device, characterized in that the hayeoseo dolseol the group 130, 130 '.
KR10-2001-0047278A 2001-08-06 2001-08-06 power serve structure of door switching KR100449588B1 (en)

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Publication number Priority date Publication date Assignee Title
KR101035120B1 (en) * 2008-09-11 2011-05-19 이경득 Door closer for a fire door

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KR101035118B1 (en) * 2008-09-11 2011-05-23 (주)세이프월 Door closer for a fire door

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101035120B1 (en) * 2008-09-11 2011-05-19 이경득 Door closer for a fire door

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