KR101075001B1 - Fire prevention gear damage prevention system of the door claw writing closed power cadence unit which bites. - Google Patents

Fire prevention gear damage prevention system of the door claw writing closed power cadence unit which bites. Download PDF

Info

Publication number
KR101075001B1
KR101075001B1 KR1020080112466A KR20080112466A KR101075001B1 KR 101075001 B1 KR101075001 B1 KR 101075001B1 KR 1020080112466 A KR1020080112466 A KR 1020080112466A KR 20080112466 A KR20080112466 A KR 20080112466A KR 101075001 B1 KR101075001 B1 KR 101075001B1
Authority
KR
South Korea
Prior art keywords
gear
rolling pin
closing force
pinion gear
fire door
Prior art date
Application number
KR1020080112466A
Other languages
Korean (ko)
Other versions
KR20100053723A (en
Inventor
박정태
Original Assignee
박정태
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 박정태 filed Critical 박정태
Priority to KR1020080112466A priority Critical patent/KR101075001B1/en
Publication of KR20100053723A publication Critical patent/KR20100053723A/en
Application granted granted Critical
Publication of KR101075001B1 publication Critical patent/KR101075001B1/en

Links

Images

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
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/18—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with counteracting springs
    • 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
    • E05F1/1041—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 a coil spring perpendicular to the pivot axis
    • E05F1/105—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 a coil spring perpendicular to the pivot axis with a compression spring
    • 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
    • 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
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/04—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes
    • E05F3/10—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes with a spring, other than a torsion spring, and a piston, the axes of which are the same or lie in the same direction
    • E05F3/102—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes with a spring, other than a torsion spring, and a piston, the axes of which are the same or lie in the same direction with rack-and-pinion transmission between driving shaft and piston within the closer housing
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
    • E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
    • E06B5/16—Fireproof doors or similar closures; Adaptations of fixed constructions therefor
    • 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
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13—Type of wing
    • E05Y2900/132—Doors
    • E05Y2900/134—Fire doors

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Special Wing (AREA)

Abstract

본 발명은 방화문 도어 클로저용 폐쇄력 보조유닛의 내부에 설치된 랙기어의 파손 또는 마모를 간단하고 효율적으로 방지할 수 있을 뿐 아니라 폐쇄력 보조유닛의 회전의 원활성 향상은 물론 수명연장에도 크게 기여할 수 있도록 하는 기어파손방지장치에 관한 것이다.The present invention can not only easily and efficiently prevent the damage or wear of the rack gear installed inside the closing force auxiliary unit for the fire door door closer, but also contribute to the improvement of the smoothness of rotation of the closing force auxiliary unit as well as the long life. The present invention relates to a gear break prevention device.

즉, 통상의 방화문 도어 클로저용 폐쇄력 보조유닛(2)에 있어서, 상기 피니언 기어(28)의 기어부(28a)와 맞물림 접하는 상대측 랙기어부(26a)의 마지막 기어 후방 마찰부(27)에 피니언기어부(28a)의 마지막기어와 닿을 때 미끄럼 작용하여 마찰저항의 최소화 및 회전 원활성의 극대화를 도모할 수 있도록 일정한 직경의 롤링핀(100)을 추가로 더 개재한 것이다.That is, in the closing force assisting unit 2 for the normal fire door door closer, the last gear rear friction part 27 of the counter rack gear part 26a which meshes with the gear part 28a of the pinion gear 28 is contacted. When the pinion gear portion (28a) is in contact with the last gear of the sliding action to further minimize the frictional resistance and to maximize the rotational smoothness is further interposed a rolling pin 100 of a constant diameter.

폐쇄력 보조유닛, 피니언 기어, 랙기어, 마찰부, 롤링핀 Closing force auxiliary unit, pinion gear, rack gear, friction part, rolling pin

Description

방화문 도어 클로저용 폐쇄력 보조유닛의 기어파손방지장치{Fire prevention gear damage prevention system of the door claw writing closed power cadence unit which bites.}Fire prevention gear damage prevention system of the door claw writing closed power cadence unit which bites.}

본 발명은 방화문 도어 클로저용 폐쇄력 보조유닛의 내부에 설치된 랙기어의 파손 또는 마모를 간단하고 효율적으로 방지할 수 있을 뿐 아니라 폐쇄력 보조유닛의 회전 원활성 향상은 물론 수명연장에도 크게 기여할 수 있도록 하는 기어파손방지장치에 관한 것이다.The present invention can not only easily and efficiently prevent the damage or wear of the rack gear installed inside the closing force auxiliary unit for the fire door door closer, but also contribute to the improvement of rotation smoothness of the closing force auxiliary unit as well as the long life. It relates to a gear breakage prevention device.

통상 방화문 도어 클로저용 폐쇄력 보조유닛(2)은 방화문(8)이 자동 닫힘시 폐쇄력이 약한 구간(즉, 문이 마지막으로 닫히는 최종 구간)에 대하여 보조적인 그 폐쇄력을 추가 인가해 완벽한 도어의 자동 닫힘 효율성을 제공하기 위해 설치브라켓(6)에 고정되는 기본 도어클로저(4)의 일단에 보조적으로 장착되는 장치로서, 최근 중요시되는 화재시 유독가스의 완벽차단 목적으로 모든 방화문에 의무적으로 설치할 것을 권고하고 있다.Normally, the closing force auxiliary unit 2 for the fire door door closer additionally applies the closing force that is auxiliary to the section in which the closing force is weak when the fire door 8 is automatically closed (that is, the last section in which the door is last closed). A device that is auxiliary to the one end of the basic door closer (4) fixed to the mounting bracket (6) to provide the automatic closing efficiency of the mandatory installation, mandatory installation on all fire doors for the purpose of completely blocking the toxic gas in the case of the recently important fire It is recommended.

그러나 상기한 종래 폐쇄력 보조유닛은 방화문 폐쇄작동 중 내부 장치된 랙기어와 피니언 기어간 마찰저항이 커 원활한 동작이 이루어지지 못할 뿐 아니라 특 히 랙기어의 파손 또는 마모현상으로 사용 중 고장이 잦고, 수명이 극히 짧아 이에 따른 비용의 손실은 물론 사용자의 불편이 상당한 실정이다.However, the above-described conventional closing force auxiliary unit has a large frictional resistance between the rack gear and the pinion gear installed inside the fire door closing operation, so that the smooth operation is not achieved, and in particular, the rack gear is frequently damaged due to breakage or wear of the rack gear. Due to the extremely short lifespan, there is a considerable loss of costs and user inconvenience.

즉, 종래의 폐쇄력 보조유닛(2)는 도 1에서 도시된 바와 같이 케이스(20)내 직선작동실(36)에 바이어스 스프링(24)과 랙기어부(26a)를 갖는 랙기어(26)를 구비하고, 상기 랙기어(26)와 기어 대응하는 상대측에는 일부 원주구간에 수개의 기어부(28a)가 형성되고 나머지 일부 구간에는 기어가 없는 슬라이딩면(28b)을 가진 피니언기어(28)를 도어클로저(2)의 회전축(40)과 축연결 구성된다.That is, the conventional closing force auxiliary unit 2 has a rack gear 26 having a bias spring 24 and a rack gear portion 26a in the linear operation chamber 36 in the case 20 as shown in FIG. And a pinion gear 28 having a sliding surface 28b having a gearless portion 28a in some circumferential sections and having a gearless portion in the other partial section on the opposite side corresponding to the rack gear 26 and the gear. The shaft is connected to the rotation shaft 40 of the door closer (2).

이러한 구성은 방화문(8)에 닫혀있는 상태에서의 최초 개방시 도 1에서 도시된 바와 같이 랙기어(26)가 피니언 기어(28) 중 수개의 기어가 형성된 피니언기어부(28a)와 기어물림된 상태임으로 피니언 기어(28)의 회전에 따라 랙기어(26)가 스프링(24)이 내장된 방향으로 이동하면서 그 스프링(24)을 압축하게 되는데,This configuration is such that the rack gear 26 is meshed with the pinion gear portion 28a in which several gears of the pinion gear 28 are formed as shown in FIG. 1 at the first opening in the closed state of the fire door 8. As the pinion gear 28 rotates, the rack gear 26 compresses the spring 24 while moving in the direction in which the spring 24 is built.

이때 상기 랙기어부(26a)의 마지막 기어와 피니언기어부의 마지막 기어간 걸림시에는 각각 하나의 기어(랙기어부의 마지막기어와 피니언기어부의 마지막 기어)만 서로 걸림 된 가운데 상당한 스프링의 압축저항까지 걸려있는 상태임에 따라,At this time, when the last gear of the rack gear part 26a and the last gear of the pinion gear part are caught between each other, only one gear (the last gear of the rack gear part and the last gear of the pinion gear part) is caught up to a considerable spring compression resistance. As you are,

상기 피니언 기어부(28a)의 마지막 기어가 랙기어부(26)의 마지막 기어의 최종 마찰부(27)와 접할 때, 그 하나의 마찰부(27)에 상당한 저항 값이 집중된 상태에서 마찰이 이루어지기 때문에,When the last gear of the pinion gear portion 28a is in contact with the final friction portion 27 of the last gear of the rack gear portion 26, friction occurs in a state where a significant resistance value is concentrated on the one friction portion 27. Because I lose

기어가 마모될 뿐 아니라 마모정도가 심할 경우 파손 또는 기능상실까지 확대되어 사용자에게 상당한 불편성을 야기하는 문제점이 있었다.In addition to the wear of the gear, when the degree of wear is severe, there is a problem causing significant inconvenience to the user is extended to damage or malfunction.

이를 해소하기 위해 일간에서는 상기 랙기어부(26a)와 피니언기어부(28a)에 고강도 열처리를 통해 마찰부의 표면을 재질 강화하여 마찰로 인한 마모현상의 완화시키는 방안에 대하여 시도된 사례도 있기는 하였으나, 열처리를 이용한 상기 방안은 개질의 강화로 말미암아 마모방지는 어느 정도 기대할 수 있었지만 취성이 오히려 약해져 크랙, 파손이 더 심하게 발생하는 바, 완벽한 방책이라 할 수 없다.In order to solve this problem, there have been attempts to alleviate the wear phenomenon caused by friction by reinforcing the surface of the friction part through high-strength heat treatment on the rack gear part 26a and the pinion gear part 28a. However, the above method using heat treatment could be expected to some extent due to the strengthening of the modification, but the brittleness is weakened, so that cracks and breakages occur more severely, and thus cannot be a perfect measure.

뿐만 아니라 상기한 종래 구조는 피니언기어부(28) 중 기어가 없는 슬라이딩면(28b)이 회전할 때 압축된 스프링(24)의 강한 탄성압을 받고 있는 랙기어부(26a)의 끝단 날카로운 모서와 마찰됨에 따라 상당한 마찰저항을 받는 가운데 회전되고, 이를 회전작동의 원활성을 저해하여 방화문 클로저 작동에 큰 장애로 작용했던 문제점도 존재하였다.In addition, the above-described conventional structure has a sharp edge at the end of the rack gear portion 26a which is subjected to strong elastic pressure of the compressed spring 24 when the gearless sliding surface 28b of the pinion gear portion 28 rotates. As the friction is rotated under considerable frictional resistance, there was also a problem that acted as a major obstacle to the operation of the fire door closer by inhibiting the smooth operation of the rotation operation.

이에 본 발명에서는 상기한 문제점을 일소하기 위해 창안한 것으로서, 방화문 도어클로저용 폐쇄력 보조유닛 내의 랙기어부와 피니언 기어부간 마찰저항이 집중되는 마찰부에 롤링수단을 개재하여 그 마찰저항을 최소화함은 물론 원활한 회전작동을 도모할 뿐 아니라 특히 기어간 마찰부의 마모, 파손 등의 결함을 최소화하여 고장율 저하, 비용절감, 수명연장, 사용의 편의성 등을 크게 향상시킨 새로운 기어파손방지구조를 제공함에 주안점을 두고 그 기술적 과제로서 완성한 것이다.Accordingly, the present invention was devised to solve the above problems, and minimizes the frictional resistance through a rolling part in which frictional resistance between the rack gear part and the pinion gear part in the closing force auxiliary unit for the fire door door closer is concentrated. Of course, in addition to achieving smooth rotation operation, in particular, it minimizes defects such as wear and breakage of friction parts between gears, thereby providing a new gear breakage prevention structure that greatly improves failure rate, cost reduction, life extension, and ease of use. This is a technical task.

통상의 방화문 도어 클로저용 폐쇄력 보조유닛(2)에 있어서, 상기 피니언 기어(28)의 기어부(28a)와 맞물림 접하는 상대측 랙기어부(26a)의 마지막 기어 후방 마찰부(27)에 피니언기어부(28a)의 마지막기어와 닿을 때 미끄럼 작용하여 마찰저항의 최소화 및 회전 원활성의 극대화를 도모할 수 있도록 일정한 직경의 롤링핀(100)을 추가로 더 개재한 것이다.In the closing force auxiliary unit 2 for the normal fire door door closer, the pinion gear is connected to the last gear rear friction portion 27 of the mating rack gear portion 26a in engagement with the gear portion 28a of the pinion gear 28. It is further interposed with a rolling pin 100 of a constant diameter so that the sliding action when contacting the last gear of the part (28a) to minimize the frictional resistance and to maximize the rotational smoothness.

이상과 같은 본 발명의 방화문 도어 클로저용 폐쇄력 보조유닛의 기어마모방지구조는 그 내부의 피니언 기어부와 랙기어간 강압 마찰시 그 사이에서 롤링 회전하면서 원활한 슬라이딩 미끄럼 작용이 일어나 기어의 마모, 크랙, 파손을 근본적으로 방지하는 가운데 원활한 회전 기능을 부여해 폐쇄력 보조유닛의 기능과 품질향상에 크게 기여할 수 있는 획기적인 발명이다.The gear abrasion prevention structure of the closing force auxiliary unit for the fire door door closer of the present invention as described above has a smooth sliding sliding action during rolling friction between the pinion gear portion and the rack gear therein, resulting in abrasion and cracking of the gear. It is a revolutionary invention that can contribute to the improvement of the function and quality of the closing force auxiliary unit by giving smooth rotation function while fundamentally preventing damage.

본 발명은 도 1에서 도시된 바와 같이 케이스(20)내 직선작동실(36)에 압축용 바이어스 스프링(24)이 구비되고, 상기 스프링(24)의 선단에는 랙기어부(26a)를 갖는 랙기어(26)를 구비하고, 상기 랙기어(26)와 측방에는 기어부(28a)와 슬라이딩면(28b)을 가진 피니언기어(28)를 구비하고, 상기 피니언기어(28)는 도어클로저(2)의 회전축(40)과 축 연결되어 방화문의 개방 또는 닫힘에 따라 정,역회전 작동할 수 있게 구성된 통상의 방화문 도어 클로저용 폐쇄력 보조유닛(2)에 있어서,As shown in FIG. 1, a compression bias spring 24 is provided in a linear operation chamber 36 in a case 20, and a rack having a rack gear portion 26a at the front end of the spring 24. And a pinion gear 28 having a gear portion 28a and a sliding surface 28b on the side of the rack gear 26, and the pinion gear 28 having a door closer 2; In the closing force auxiliary unit (2) for a conventional fire door door closer, the shaft is connected to the rotating shaft (40) of the) and configured to operate forward and reverse according to the opening or closing of the fire door.

상기 피니언 기어(28)의 기어부(28a)와 맞물림 접하는 상대측 랙기어부(26a)의 마지막 기어 후방 마찰부(27)에 피니언기어(28a)의 기어부 마지막 기어와 닿을 때 미끄럼 작용하여 마찰저항의 최소화 및 회전 원활성의 극대화를 도모할 수 있도록 일정한 직경의 롤링핀(100)을 추가로 더 개재한 것을 그 특징요지로 하였다.When the last gear rear friction portion 27 of the rack gear portion 26a of the mating gear 28a in contact with the gear portion 28a of the pinion gear 28 comes into contact with the last gear of the gear portion of the pinion gear 28a, the sliding resistance In order to minimize the rotation and maximize the smoothness of the rotation was further characterized by a further interposed a rolling pin of a constant diameter (100).

상기 롤링핀(100)은 상기 랙기어(26)의 마지막기어 후방의 마찰부(27)상에 외부로의 이탈은 근본적으로 방지되는 가운데 일부는 외부 돌출된 형태로 수용될 수 있도록,The rolling pin 100 is to be accommodated in the form of the outer protruding of the outer gear on the friction portion 27 behind the last gear of the rack gear 26 is essentially prevented,

입구(110)는 롤링핀(100)의 직경보다 미세하게 작은 폭으로 구성되는 반면 내부에는 마찰시 끼워진 롤링핀(100)이 공회전 롤링(슬라이딩 또는 미끄럼운동 등)이 이루어질 수 있게 그 롤링핀 보다 미세하게 큰 직경의 롤링핀포켓홈(120)을 형성한 다음 그 롤링핀포켓홈(120)에 롤링핀(100)을 끼워 결합시킴이 바람직하다.The inlet 110 has a width smaller than the diameter of the rolling pin 100, while the inside of the rolling pin 100 is finer than the rolling pin so that the rolling pin 100, which is fitted during friction, can be idle-rolled (such as sliding or sliding). It is preferable to form a rolling pin pocket groove 120 having a large diameter, and then to fit the rolling pin 100 into the rolling pin pocket groove 120.

그리고 상기 롤링핀포켓홈(120)에 결합되는 롤링핀(100)은 피니언기어(28)의 슬라이딩면(28b) 원주가 랙기어부(26a)의 마지막기어 끝단과 접할 때 그 사이의 마찰부(27) 상에서 피니언기어 원주면과 닿을 수 있는 양 만큼 돌출되도록 구성하여 피니언기어(28)의 회전 작동시 그 피니언기어(28)의 슬라이딩면(28b)의 원주둘레면이 그 롤링핀(100)과 닿아 마찰되는 가운데 회전될 수 있도록 함이 바람직하다.The rolling pin 100 coupled to the rolling pin pocket groove 120 has a friction portion therebetween when the circumference of the sliding surface 28b of the pinion gear 28 is in contact with the end gear end of the rack gear portion 26a. 27) is configured to protrude as much as the pinion gear circumferential surface in contact with the circumferential peripheral surface of the sliding surface 28b of the pinion gear 28 when the pinion gear 28 is rotated. It is desirable to be able to rotate while touching and rubbing.

한편, 방화문이 열릴(open)때 그 방화문과 축 연결된 피니언기어(28)는 회전하면서 랙기어(26)를 밀고, 이때 일측으로 밀려나는 랙기어(26)는 타측 스프링(24)에 의해 상당한 강압력이 축척되며, 상기 축척된 랙기어(26)의 강압력은 방화문의 닫힘 과정 중 폐쇄력이 약한 마지막 구간에 보조적인 추가 폐쇄력을 더 인가하여 완전한 방화문 닫힘 역할을 하는 통상의 방화문 도어클로저용 폐쇄력 보조장치(2)의 내부 부품 중,On the other hand, when the fire door is opened, the pinion gear 28 axially connected to the fire door pushes the rack gear 26 while rotating, and at this time, the rack gear 26 pushed to one side has a considerable strength by the other spring 24. Pressure is accumulated, and the strong pressure of the accumulated rack gear 26 is applied to the conventional fire door door closer which serves as a complete fire door closing by applying an additional additional closing force to the last section of the low closing force during the closing process of the fire door. Among the internal parts of the closing force assist device (2),

상당한 강압력이 인가된 랙기어부(26a)와 피니언 기어부(28a)간 기어물림 상태에서 피니언기어(28)의 연이은 회전 작동시 어느 순간 상당한 강압력이 주어진 상태의 랙기어부(26a) 중 마지막 하나의 기어에 피니언기어부(28)의 마지막 기어 하나만 걸림된 상태가 되는데,In the rack gear portion 26a in a state in which significant force pressure is given at a moment in successive rotational operations of the pinion gear 28 in a gear-engaged state between the rack gear portion 26a and the pinion gear portion 28a to which a significant strong pressure is applied. Only one last gear of the pinion gear part 28 is caught in the last one gear,

이 경우 기존에는 그 마찰되는 작은 마찰부(27)에 국부적인 최대의 집중 가압력이 인가되고 이 가운데 계속되는 방화문의 오픈작용에 따라 연속 회전하게 되면 그 랙기어(26)의 마찰부(27)에 큰 마찰저항과 심한충격은 물론 이로 인한 마모 또는 크랙, 파손 등의 결함을 피할 수 없었으나,In this case, when the local maximum concentrated pressing force is applied to the small friction part 27 to be rubbed, and continuously rotates in accordance with the opening action of the fire door, the friction part 27 of the rack gear 26 is large. Friction resistance and severe impact as well as defects such as abrasion, cracks, and breakage due to this were inevitable,

상기 본 발명에서 제시된 핵심요소인 롤링핀(100)을 끼워 구성시키게 되면, 그 마찰부(27)에 집중되는 강압력 및 큰 마찰계수를 분산시키는 효과를 얻을 수 있 음은 물론 롤링의 미끄럼 운동에 따른 마찰저항의 최소화로 마모, 크랙, 파손 등을 원천적으로 방지할 수 있고, 나아가 원활한 회전 및 작동에 크게 기여할 수 있게 된다.When the rolling pin 100, which is a key element proposed in the present invention, is fitted, the effect of dispersing the strong pressure concentrated on the friction part 27 and a large coefficient of friction can be obtained, as well as the sliding motion of rolling. By minimizing the frictional resistance, wear, cracks, damage, etc. can be prevented at the source, and further contribute to smooth rotation and operation.

도 1은 종래 방화문 도어 클로저용 폐쇄력 보조유닛의 설치상태도1 is a state of installation of a conventional closing force auxiliary unit for fire door door closer

도 2는 종래 방화문 도어 클로저용 폐쇄력 보조유닛의 내부 구조 및 작동상태도2 is a view showing the internal structure and operation state of the conventional closing force auxiliary unit for fire door closer

도 3 및 도 4는 본 발명의 바람직한 일 실시예를 보인 단면도와 작동상태도3 and 4 is a cross-sectional view and an operational state diagram showing an embodiment of the present invention

도 5는 본 발명에서 제시된 방화문 도어 클로저용 폐쇄력 보조유닛의 내부 에 설치된 랙기어와 피니언기어를 발췌한 상세도Figure 5 is a detailed view of the rack gear and pinion gear installed in the interior of the closing force auxiliary unit for the fire door door closer proposed in the present invention

도 6은 본 발명에서 제시된 방화문 도어 클로저용 폐쇄력 보조유닛의 내부 에 설치된 랙기어와 피니언기어간 맞물림 작동상태도Figure 6 is an operation state of engagement between the rack gear and the pinion gear installed in the closing force auxiliary unit for the fire door door closer proposed in the present invention.

도 7은 도 6의 랙기어와 피니언기어간 맞물림 사시도7 is a perspective view of engagement between the rack gear and the pinion gear of FIG.

*도면의 주요부분에 대한 부호설명** Description of Signs of Main Parts of Drawings *

2:방화문 도어 클로저용 폐쇄력 보조유닛 4:도어클로저2: Closing force auxiliary unit for fire door door closer 4: Door closer

8:방화문 20:케이스8: fire door 20: case

24:스프링 26:랙기어24: spring 26: rack gear

26a:랙기어부 28:피니언기어26a: rack gear 28: pinion gear

28a:기어부 28b:슬라이딩면28a: Gear 28b: Sliding surface

36:직선작동실 40:회전축36: linear operation chamber 40: rotary shaft

100:롤링핀 110:입구100: rolling pin 110: entrance

120:롤링핀포켓홈120: rolling pin pocket groove

Claims (3)

케이스(20)내 직선작동실(36)에 압축용 바이어스 스프링(24)이 구비하고, 상기 스프링(24)의 선단에는 랙기어부(26a)를 갖는 랙기어(26)를 구비하고, 상기 랙기어(26)와 측방에는 기어부(28a)와 슬라이딩면(28b)을 가진 피니언기어(28)를 구비하고, 상기 피니언기어(28)는 도어클로저(2)의 회전축(40)과 축 연결되어 방화문의 개방 또는 닫힘에 따라 정,역회전 작동할 수 있게 구성된 통상의 방화문 도어 클로저용 폐쇄력 보조유닛(2)에 있어서,A bias spring 24 for compression is provided in the linear operation chamber 36 in the case 20, and a rack gear 26 having a rack gear portion 26a is provided at the tip of the spring 24, and the rack The gear 26 and the side are provided with a pinion gear 28 having a gear portion 28a and a sliding surface 28b. The pinion gear 28 is axially connected to the rotary shaft 40 of the door closer 2. In the closing force auxiliary unit (2) for a conventional fire door door closer configured to be able to operate in forward and reverse rotation according to the opening or closing of the fire door, 상기 피니언기어(28)의 기어부(28a)와 맞물림 접하는 상대측 랙기어부(26a)의 마지막 기어 후방 마찰부(27)에 기어부(28a)의 마지막기어와 닿을 때 미끄럼 작용하여 마찰저항의 최소화 및 회전 원활성의 극대화를 도모할 수 있도록 일정한 직경의 롤링핀(100)을 추가로 더 개재한 것을 특징으로 한 방화문 도어 클로저용 폐쇄력 보조유닛의 기어파손방지장치.Minimizes frictional resistance by sliding when the last gear of the gear portion 28a comes into contact with the last gear rear friction portion 27 of the opposite rack gear portion 26a in engagement with the gear portion 28a of the pinion gear 28. And a gear breaking prevention device for a closing force auxiliary unit for a fire door door closer, further comprising a rolling pin 100 having a constant diameter to further maximize rotational smoothness. 제 1항에 있어서,The method of claim 1, 상기 롤링핀(100)은 상기 랙기어(26)의 마지막기어 후방의 마찰부(27)상에 외부로의 이탈은 근본적으로 방지되는 가운데 일부는 외부 돌출된 형태로 수용될 수 있도록 입구(110)는 롤링핀(100)의 직경보다 미세하게 작은 폭으로 구성되는 반면 내부에는 마찰시 끼워진 롤링핀(100)이 공회전 롤링(슬라이딩 또는 미끄럼운동 등)이 이루어질 수 있게 그 롤링핀 보다 미세하게 큰 직경의 롤링핀포켓홈(120)을 형성한 다음 그 포켓홈(120)에 끼워 결합되는 것을 특징으로 한 방화문 도어 클로저용 폐쇄력 보조유닛의 기어파손방지장치.The rolling pin 100 has an inlet 110 to be accommodated in an externally protruding form, while being partially prevented from escaping to the outside on the friction part 27 behind the last gear of the rack gear 26. Is composed of a width smaller than the diameter of the rolling pin 100, while the inside of the friction of the rolling pin 100 is inserted into the friction rolling (sliding or sliding, etc.) of the finer diameter than the rolling pin Forming a rolling pin pocket groove 120, the gear breakage prevention device of the closing force auxiliary unit for the fire door door closer characterized in that the fitting is inserted into the pocket groove (120). 제 2항에 있어서,3. The method of claim 2, 상기 롤링핀포켓홈(120)에 결합되는 롤링핀(100)은 피니언기어(28)의 슬라이딩면(28b) 원주가 랙기어부(26a)의 마지막기어 끝단과 접할 때 그 사이의 마찰부(27) 상에서 피니언기어(28) 원주면과 닿을 수 있는 양 만큼 돌출되도록 구성하여 피니언기어(28)의 회전 작동시 그 피니언기어(28)의 슬라이딩면(28b)의 원주둘레면이 그 롤링핀(100)과 닿아 마찰되는 가운데 회전될 수 있도록 구성되는 것을 특징으로 한 방화문 도어 클로저용 폐쇄력 보조유닛의 기어파손방지장치.The rolling pin 100 coupled to the rolling pin pocket groove 120 has a frictional portion 27 between the sliding surface 28b of the pinion gear 28 when the circumference of the rolling pin is in contact with the end gear end of the rack gear portion 26a. The circumferential circumferential surface of the sliding surface 28b of the pinion gear 28 when the pinion gear 28 rotates so that the pinion gear 28 protrudes as much as possible to contact the circumferential surface thereof. The gear breakage prevention device of the closing force auxiliary unit for the fire door door closer, characterized in that configured to be rotated in contact with the friction.
KR1020080112466A 2008-11-13 2008-11-13 Fire prevention gear damage prevention system of the door claw writing closed power cadence unit which bites. KR101075001B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020080112466A KR101075001B1 (en) 2008-11-13 2008-11-13 Fire prevention gear damage prevention system of the door claw writing closed power cadence unit which bites.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020080112466A KR101075001B1 (en) 2008-11-13 2008-11-13 Fire prevention gear damage prevention system of the door claw writing closed power cadence unit which bites.

Publications (2)

Publication Number Publication Date
KR20100053723A KR20100053723A (en) 2010-05-24
KR101075001B1 true KR101075001B1 (en) 2011-10-18

Family

ID=42278612

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020080112466A KR101075001B1 (en) 2008-11-13 2008-11-13 Fire prevention gear damage prevention system of the door claw writing closed power cadence unit which bites.

Country Status (1)

Country Link
KR (1) KR101075001B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160107843A (en) 2015-03-05 2016-09-19 탁우찬 Breech mechanism for fire door
KR20170002374U (en) 2015-12-23 2017-07-03 탁우찬 Stoper for fire dooe

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101256451B1 (en) * 2011-12-03 2013-04-19 (주)에이스앤아이 Closing force assistant device for door closer
CN108505865A (en) * 2018-06-06 2018-09-07 四川大学 A kind of shutdown damper
CN109972965A (en) * 2019-04-18 2019-07-05 深圳市天贸实业有限公司 Warming shutting window device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200202010Y1 (en) 2000-03-25 2000-11-01 문홍식 Piston of door closer
KR100681886B1 (en) 2005-08-16 2007-02-12 이덕환 Piston for door closure

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200202010Y1 (en) 2000-03-25 2000-11-01 문홍식 Piston of door closer
KR100681886B1 (en) 2005-08-16 2007-02-12 이덕환 Piston for door closure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160107843A (en) 2015-03-05 2016-09-19 탁우찬 Breech mechanism for fire door
KR20170002374U (en) 2015-12-23 2017-07-03 탁우찬 Stoper for fire dooe
KR20170002375U (en) 2015-12-23 2017-07-03 탁우찬 Stoper for fire dooe

Also Published As

Publication number Publication date
KR20100053723A (en) 2010-05-24

Similar Documents

Publication Publication Date Title
KR101075001B1 (en) Fire prevention gear damage prevention system of the door claw writing closed power cadence unit which bites.
CN201165778Y (en) Booster door handles
CN113644782B (en) Electric push rod structure and application control method thereof
CN107075888B (en) Compression door bolt
CN209413577U (en) A kind of locking and the closed guard gate using the locking
CN208861841U (en) A kind of door and window touch switch
CN215278711U (en) Automatic door capable of automatically cleaning by utilizing opening and closing actions of automatic door
CN108222694B (en) Quick steering mechanism of intelligent lock
CN114991648A (en) Fire-proof rolling shutter door machine with locking mechanism
CN208644863U (en) A kind of machine tool protection door structure that can be cleaned automatically
CN205875926U (en) Gear reversing mechanism of tool to lock
CN201225052Y (en) Electric door machine
CN209908112U (en) Clutch type door lock
EP2275633A2 (en) Order selector for a double wing door
CN208587018U (en) A kind of crank handle lock
EP1959081A1 (en) Door closer for left-hand side openable door and right-hand side openable door
CN112858620A (en) Non-maintaining COD pure water on-line measuring appearance
CN108818134A (en) A kind of machine tool protection door structure that can be cleaned automatically
KR200269685Y1 (en) Security device of an auxiliary door for receiving delivered goods
CN209687904U (en) Fire window opening/closing device gear shaft
CN108952378A (en) Safety door/window bolt
CN115977510A (en) Door body assembly and air conditioning unit
CN215830273U (en) Basement civil air defense door connecting mechanism
CN221169375U (en) Roller shutter machine clutch convenient to installation
CN220285501U (en) Ball fireproof lock

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
LAPS Lapse due to unpaid annual fee