KR101185874B1 - Fatigue dispersion system for folding door assembly - Google Patents

Fatigue dispersion system for folding door assembly Download PDF

Info

Publication number
KR101185874B1
KR101185874B1 KR1020120090024A KR20120090024A KR101185874B1 KR 101185874 B1 KR101185874 B1 KR 101185874B1 KR 1020120090024 A KR1020120090024 A KR 1020120090024A KR 20120090024 A KR20120090024 A KR 20120090024A KR 101185874 B1 KR101185874 B1 KR 101185874B1
Authority
KR
South Korea
Prior art keywords
folding door
folding
hanger
rail
door assembly
Prior art date
Application number
KR1020120090024A
Other languages
Korean (ko)
Inventor
김영미
Original Assignee
한국히로마도 (주)
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 한국히로마도 (주) filed Critical 한국히로마도 (주)
Priority to KR1020120090024A priority Critical patent/KR101185874B1/en
Application granted granted Critical
Publication of KR101185874B1 publication Critical patent/KR101185874B1/en

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D15/00—Suspension arrangements for wings
    • E05D15/26—Suspension arrangements for wings for folding wings
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D15/00—Suspension arrangements for wings
    • E05D15/06—Suspension arrangements for wings for wings sliding horizontally more or less in their own plane
    • E05D15/0621—Details, e.g. suspension or supporting guides
    • E05D15/0626—Details, e.g. suspension or supporting guides for wings suspended at the top
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D15/00—Suspension arrangements for wings
    • E05D15/06—Suspension arrangements for wings for wings sliding horizontally more or less in their own plane
    • E05D15/0621—Details, e.g. suspension or supporting guides
    • E05D15/066—Details, e.g. suspension or supporting guides for wings supported at the bottom
    • 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
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/32—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing
    • E06B3/48—Wings connected at their edges, e.g. foldable wings
    • E06B3/485—Sectional doors
    • E06B3/486—Sectional doors with hinges being at least partially integral part of the section panels
    • 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
    • E05Y2201/684—Rails; Tracks
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Extensible Doors And Revolving Doors (AREA)

Abstract

PURPOSE: A fatigue load dispersion system of a folding door assembly is provided to prevent an excessive load from being applied to an upper rail when a folding door is opened. CONSTITUTION: A fatigue load dispersion system of a folding door assembly is composed of multiple folding doors(300). The folding doors are foldably coupled to each other using hinges and have upper and lower hangers(310,320). The upper and lower hangers are rolled along upper and lower rails(100,200). When the folding doors are closed, the folding doors are rolled through the upper hanger. When the folding doors are opened, the folding doors are rolled through the rolling contact between the lower hanger and the lower rail.

Description

폴딩도어 조립체의 피로하중 분산 시스템{Fatigue dispersion system for folding door assembly}Fatigue dispersion system for folding door assembly

본 발명은 폴딩도어 조립체에 관한 것으로서, 보다 상세하게는 폴딩도어들을 개방했을때 개방부위에 집중적으로 피로하중이 가해지는 것을 분산하도록 함으로써 폴딩도어의 장시간 사용이 가능하도록 한 폴딩도어 조립체의 피로하중 분산 시스템에 관한 것이다.The present invention relates to a folding door assembly. More particularly, the present invention relates to a folding door assembly that distributes fatigue loads intensively to an open area when opening the folding doors, thereby distributing fatigue loads of the folding door assembly to enable long-term use of the folding door. It's about the system.

일반적으로 근래에 들어와서 도어 조립체의 하나로써 벽체의 출입구 외측에 도어를 완전히 개방할 공간이 없는 곳이나, 기타 주변 환경과의 친화력을 도모하기 위하여 출입구를 완전히 개방할 수 있도록 된 폴딩도어 조립체가 근래에 널리 적용되고 있다.In general, a folding door assembly which has recently been introduced into a door assembly and has no space to fully open the door outside the entrance of the wall, or that can be opened completely to promote affinity with other surroundings. It is widely applied to.

이러한 폴딩도어 조립체는, 복수개의 개별 도어가 서로 회동 가능하게 힌지 결합되어 있는 것은 물론이고, 문틀상에 마련된 상,하 레일을 따라 슬라이딩 가능하게 설치된다.Such a folding door assembly is installed to be slidably along upper and lower rails provided on the door frame as well as hingedly coupled to the plurality of individual doors.

따라서 개별 도어들을 측방향으로 밀거나 당기는 동작에 의해 도어들이 순차적으로 이동 및 절첩되어 출입구를 개방 또는 밀폐시키게 되는 것이다.Therefore, the doors are sequentially moved and folded by pushing or pulling the individual doors laterally to open or close the entrance.

또한 이러한 통상적인 폴딩도어에 있어서는, 개별도어를 각각 문틀에 위치 고정시키기 위한 손잡이가 마련된 구조를 취하고 있다.In addition, in such a conventional folding door, it has a structure provided with a handle for fixing the individual door to the door frame.

그러나 이러한 일반적인 폴딩도어 조립체에 있어서는 다음과 같은 문제점이 발생된다.However, the following problems arise in such a general folding door assembly.

즉, 도 1에 나타내 보인 바와 같이 폴딩도어들이 닫힌 상태에서는 그 전체 하중이 고르게 분포된 상태이다.That is, as shown in FIG. 1, when the folding doors are closed, the entire load is evenly distributed.

따라서 폴딩도어들의 행거들과 상,하부 레일간에는 고른 하중 분포로 인하여 변형이 발생되지 않는다.Therefore, no deformation occurs due to the even load distribution between the hangers of the folding doors and the upper and lower rails.

그러나 도 2에 나타내 보인 바와 같이 폴딩도어들이 개방된 상태에서는 개방되어 절첩되어진 폴딩도어들로 인하여 절첩측 부위쪽에 집중적인 하중이 걸리게 된다.However, as shown in FIG. 2, when the folding doors are opened, intensive loads are applied to the folded side due to the folding doors being opened and folded.

따라서 폴딩도어의 상부 행거가 구름 지지된 상부 레일측에 과도한 하중이 걸리게 됨으로써 장시간 반복해서 폴딩도어의 잠금 및 열림동작을 행하게 되면, 상부 레일을 고정하고 있는 앵커나 볼트이 파손이 유발되어 불량이 발생되는 문제점이 있다.Therefore, when the upper hanger of the folding door is excessively loaded on the cloud-supported upper rail side, and the locking and opening operation of the folding door is repeated for a long time, the anchor or bolts fixing the upper rail may be damaged, causing defects. There is a problem.

상술한 문제점을 해소하기 위한 본 발명의 목적은, 잠금 동작은 상부 레일과 폴딩도어의 상부 행거 구름 동작을 통해 이루어지고, 개방 동작은 하부 레일과 하부 행거의 구름 동작을 통해 이루어지도록 함으로써 개방 동작시 과도한 하중이 상부 레일측에 걸리는 것을 미연에 방지하도록 함으로써 즉, 하중 분산 효과를 갖는 폴딩도어 조립체의 피로하중 분산 시스템을 제공함에 있다.An object of the present invention for solving the above problems, the locking operation is made through the upper hanger rolling operation of the upper rail and the folding door, the opening operation is made by the rolling operation of the lower rail and the lower hanger It is to provide a fatigue load distribution system of a folding door assembly having a load distribution effect by preventing the excessive load from being caught on the upper rail side.

상기와 같은 목적을 달성하기 위한 본 발명에 따른 폴딩도어 조립체의 피로하중 분산 시스템은, 상호 경첩을 통해 절첩 가능하게 결합되고, 상부 레일과 하부 레일을 따라 구름 이동되는 상부 행거와 하부 행거를 구비하는 다수의 폴딩도어로 이루어진 폴딩도어 조립체에 있어서, 상기 폴딩도어가 닫히는 동작에서는 상부 행거를 통해 구름이동되고, 상기 폴딩도어가 개방되어 절첩되는 시점에서는 하부 행거와 하부 레일간의 구름 접촉만을 통해 구름 이동되도록 된 것을 그 특징으로 한다.Fatigue load distribution system of the folding door assembly according to the present invention for achieving the above object, which is foldably coupled through a mutual hinge, having an upper hanger and a lower hanger which is clouded along the upper rail and the lower rail A folding door assembly comprising a plurality of folding doors, wherein the folding door is clouded through an upper hanger when the folding door is closed, and when the folding door is opened and folded, only the rolling contact between the lower hanger and the lower rail is clouded. It is characterized by that.

본 발명의 바람직한 한 특징은, 상기 폴딩도어가 개방되어 절첩되는 시점에서 하부 행거와 하부 레일간의 구름 접촉만을 통해 구름 이동되도록 하기 위하여, 상기 하부 레일의 절첩측 바닥면에는 폴딩도어의 하부 행거를 상부 방향으로 이동시키는 가이드 브래킷이 마련된 것에 있다.One preferred feature of the present invention is to provide a lower hanger of the folding door on the bottom side of the folding rail so that the folding door is clouded only through the rolling contact between the lower hanger and the lower rail when the folding door is opened and folded. The guide bracket which moves to a direction is provided.

상술한 본 발명에 따른 특징으로 인해 기대되는 효과로는, 하중이 고르게 분포되는 잠금 동작시에는 큰 하중이 걸리지 않기 때문에 상부 레일과 상부 행거를 통해 구름 동작을 행하고, 개방 동작시에는 큰 하중이 걸리기 때문에 하부 레일의 가이드 브래킷과 하부 행거를 통해 구름 동작을 행하기 때문에 종래 개방동작시 상부 레일에 큰 하중이 가해지는 것이 미연에 방지된다.As expected effects due to the above-described features of the present invention, since a large load is not applied during the locking operation in which the load is evenly distributed, rolling is performed through the upper rail and the upper hanger, and a large load is applied during the opening operation. Therefore, since the rolling motion is performed through the guide bracket and the lower hanger of the lower rail, a large load is applied to the upper rail in the conventional opening operation.

따라서 장시간 반복적인 잠금 및 개방동작시에도 상부 행거가 구름 결합된 상부 레일의 파손 및 손상을 미연에 방지할 수 있다. 즉, 장시간 폴딩도어의 작동이 가능하여 신뢰성을 향상시킬 수 있는 효과가 있다.Accordingly, even when repeated locking and opening operation for a long time, it is possible to prevent the damage and damage of the upper rail to which the upper hanger is cloud-coupled. That is, it is possible to operate the folding door for a long time has the effect of improving the reliability.

도 1 및 도 2는 일반적인 폴딩도어 조립체에서 잠금 및 개방시 하중이 분포되는 것을 나타낸 예시도.
도 3 및 도 4는 본 발명에 따른 폴딩도어 조립체의 피로하중 분산 시스템을 나타낸 단면도들.1 and 2 is an exemplary view showing that the load is distributed during locking and opening in a conventional folding door assembly.
3 and 4 are cross-sectional views showing a fatigue load distribution system of the folding door assembly according to the present invention.

발명의 상술한 목적과 여러 가지 장점은 이 기술 분야에 숙련된 사람들에 의해, 첨부된 도면을 참조하여 후술되는 본 발명의 바람직한 실시 예로부터 더욱 명확하게 될 것이다.BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings, in which: FIG.

도 3 및 도 4는 본 발명의 폴딩도어 조립체의 피로하중 분산 시스템을 나타낸 단면도들이다.3 and 4 are cross-sectional views showing a fatigue load distribution system of the folding door assembly of the present invention.

이에 나타내 보인 바와 같이 본 발명은, 상호 경첩을 통해 절첩 가능하게 결합되고, 상부 레일(100)과 하부 레일(200)을 따라 구름 이동되는 상부 행거(310)와 하부 행거(320)를 구비하는 다수의 폴딩도어(300)로 이루어진다.As shown in the present invention, the present invention, a plurality of having a top hanger 310 and the lower hanger 320 is coupled to each other through a hinge hinge, and clouded along the upper rail 100 and the lower rail 200. The folding door 300 is made of.

이때 폴딩도어(300)의 닫히는 동작은, 본 발명의 특징에 따라 도 3에 나타내 보인 바와 같이 상부 행거(310)와 상부 레일(100)간의 구름 동작을 통해 이루어진다.At this time, the closing operation of the folding door 300 is made through the rolling operation between the upper hanger 310 and the upper rail 100 as shown in FIG.

또한 개방 동작은 즉, 폴딩도어(300)가 개방되어 절첩되는 시점에서는 하부 행거(320)와 하부 레일(200)간의 구름 접촉만을 통해 구름 이동되도록 함으로써 접첩시 상부 레일(100)에 큰 하중이 가해지는 것을 즉, 피로하중이 집중되는 것을 분산하게 된다.In addition, in the opening operation, that is, when the folding door 300 is opened and folded, a large load is applied to the upper rail 100 at the time of folding by allowing only the rolling contact between the lower hanger 320 and the lower rail 200 to be clouded. Losing, ie, concentration of fatigue load, is distributed.

한편, 폴딩도어(300)가 개방되어 절첩되는 시점에서 하부 행거(320)와 하부 레일(200)간의 구름 접촉만을 통해 구름 이동되도록 하기 위하여, 도 4에 나타내 보인 바와 같이 하부 레일(200)의 절첩측 바닥면에는 폴딩도어(300)의 하부 행거(320)를 상부 방향으로 이동시키는 가이드 브래킷(400)이 마련된다.On the other hand, when the folding door 300 is opened and folded so as to be clouded only through the rolling contact between the lower hanger 320 and the lower rail 200, as shown in FIG. A guide bracket 400 for moving the lower hanger 320 of the folding door 300 in the upper direction is provided on the bottom side of the patch.

이와같은 가이드 브래킷(400)은 하부 레일(200)과 일체로 마련되거나 기타 고정수단을 통해 별도의 가이드 브래킷(400)을 고정 설치하여도 무방할 것이다.Such a guide bracket 400 may be provided integrally with the lower rail 200 or may be fixed to a separate guide bracket 400 through other fixing means.

또한 가이드 브래킷(400)의 사이드면은 하부 행거(320)가 부드럽게 상향 이동될 수 있도록 완만한 곡선면을 이루도록 함이 바람직할 것이다.In addition, the side surface of the guide bracket 400 will be desirable to form a smooth curved surface so that the lower hanger 320 can be moved upward smoothly.

이와같은 본 발명은, 잠금 동작시에는 고르게 하중이 분포됨으로써 상부 레일(100)과 상부 행거(310)간의 구름 동작을 통해 잠금 동작을 행하고, 상대적으로 큰 피로하중이 가해지는 개방동작시에는 상부 행거(310)가 상부 레일(100)에 접촉되지 않게하고, 하부 레일(200)과 하부 행거(320)간의 구름 동작을 통해 개방 동작이 이루어지게 된다.In the present invention, the lock operation is performed through the rolling operation between the upper rail 100 and the upper hanger 310 by the distribution of the load evenly during the locking operation, and the upper hanger during the opening operation to which a relatively large fatigue load is applied. The 310 is not in contact with the upper rail 100, and the opening operation is performed through the rolling operation between the lower rail 200 and the lower hanger 320.

따라서 잠금 동작시에는 부드러운 잠금 동작이 이루어지며, 개방 동작시에는 상부 레일(100)에 큰 하중이 가해지지 않고 하부 레일(200)과 하부 행거(320)의 구름 동작을 통해 이루어지게 되어 역시 부드러운 개방 동작이 이루어지게 된다.Therefore, in the locking operation, a smooth locking operation is performed, and in the opening operation, a large load is not applied to the upper rail 100, but is made through the rolling operation of the lower rail 200 and the lower hanger 320, and thus the soft opening. The operation is made.

이에따라 전체적으로 하중이 분산되는 효과를 갖게됨으로써 종래 개방 동작시 상부 레일에 집중적인 하중이 가해짐으로써 발생되는 상부 레일을 고정하는 앵커 또는 볼트등의 파손 우려를 미연에 방지할 수 있게되어 장시간 폴딩도어(300)의 개폐동작을 행할 수 있다.
As a result, the load is distributed as a whole, thereby preventing the possibility of damage such as anchors or bolts that secure the upper rail generated by intensive load being applied to the upper rail during the conventional opening operation. 300 can be opened and closed.

이상의 설명에서 본 발명은 특정의 실시 예와 관련하여 도시 및 설명하였지만, 등록청구범위에 의해 나타난 발명의 사상 및 영역으로부터 벗어나지 않는 한도 내에서 다양한 개조 및 변화가 가능하다는 것을 당 업계에서 통상의 지식을 가진 자라면 누구나 쉽게 알 수 있을 것이다.While the invention has been shown and described in connection with specific embodiments thereof, it is well known in the art that various modifications and changes can be made without departing from the spirit and scope of the invention as indicated by the claims. Anyone who owns it can easily find out.

*도면의 주요 부분에 대한 부호의 설명
100 : 상부 레일
200 : 하부 레일
300 : 폴딩도어
310 : 상부 행거
320 : 하부 행거
400 : 가이드 브래킷DESCRIPTION OF THE REFERENCE NUMERALS
100: upper rail
200: lower rail
300: folding door
310: upper hanger
320: lower hanger
400: guide bracket

Claims (2)

상호 경첩을 통해 절첩 가능하게 결합되고, 상부 레일과 하부 레일을 따라 구름 이동되는 상부 행거와 하부 행거를 구비하는 다수의 폴딩도어로 이루어진 폴딩도어 조립체에 있어서,
상기 폴딩도어가 닫히는 동작에서는 상부 행거를 통해 구름이동되고,
상기 폴딩도어가 개방되어 절첩되는 시점에서는 하부 행거와 하부 레일간의 구름 접촉만을 통해 구름 이동되도록 된 것을 특징으로 하는 폴딩도어 조립체의 피로하중 분산 시스템.A folding door assembly comprising a plurality of folding doors that are foldably coupled to each other by hinges and have upper and lower hangers that are rolled along an upper rail and a lower rail,
In the operation of closing the folding door is clouded through the upper hanger,
At the time when the folding door is opened and folded, the fatigue load distribution system of the folding door assembly, characterized in that to move the cloud only through the rolling contact between the lower hanger and the lower rail. 제 1항에 있어서,
상기 폴딩도어가 개방되어 절첩되는 시점에서 하부 행거와 하부 레일간의 구름 접촉만을 통해 구름 이동되도록 하기 위하여,
상기 하부 레일의 절첩측 바닥면에는 폴딩도어의 하부 행거를 상부 방향으로 이동시키는 가이드 브래킷이 마련된 것을 특징으로 하는 폴딩도어 조립체의 피로하중 분산 시스템.The method of claim 1,
In order to move the cloud only through the rolling contact between the lower hanger and the lower rail when the folding door is opened and folded,
And a guide bracket for moving the lower hanger of the folding door in an upward direction on the folded bottom surface of the lower rail.
KR1020120090024A 2012-08-17 2012-08-17 Fatigue dispersion system for folding door assembly KR101185874B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020120090024A KR101185874B1 (en) 2012-08-17 2012-08-17 Fatigue dispersion system for folding door assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120090024A KR101185874B1 (en) 2012-08-17 2012-08-17 Fatigue dispersion system for folding door assembly

Publications (1)

Publication Number Publication Date
KR101185874B1 true KR101185874B1 (en) 2012-09-26

Family

ID=47114106

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020120090024A KR101185874B1 (en) 2012-08-17 2012-08-17 Fatigue dispersion system for folding door assembly

Country Status (1)

Country Link
KR (1) KR101185874B1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000240345A (en) 1999-02-18 2000-09-05 Kazumoto Hashizume Fitting

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000240345A (en) 1999-02-18 2000-09-05 Kazumoto Hashizume Fitting

Similar Documents

Publication Publication Date Title
US9440727B2 (en) Telescoping aircraft panel door
RU2633193C2 (en) Panel system
KR20120003577U (en) The Maintenance Hatch of Ceiling Panel in Deck House
KR101966890B1 (en) Folding door roller apparatus
KR101185874B1 (en) Fatigue dispersion system for folding door assembly
KR101204004B1 (en) Door frame for improving assembliy and entering easily
JP6614994B2 (en) Door shoe with stopper function
KR20130003959U (en) sliding door for workshop
JP5774088B2 (en) Elevator door equipment
JP2017532269A (en) Door system for elevator equipment
KR20080082879A (en) Device for guiding a front door of elevator
KR102184683B1 (en) Elevator door system with interlock assembly
CN104047490B (en) Translation door slide assemblies
KR200430500Y1 (en) a partition with a sliding door
JP2013189294A (en) Door device of elevator
JP2009197402A (en) Partition panel with door in movable partition device
US20130081330A1 (en) Aircraft interior door assembly
JP2006103872A (en) Manhole cover device for passenger conveyor
JP2006194027A (en) Upper guide structure of sliding door
CN112832504A (en) Hanging basket suspension mechanism suitable for portal rigid frame structural engineering
JP7108261B2 (en) Stopper mechanism for self-closing sliding doors for greenhouses
JP6956923B2 (en) Elevator door
JP2020169063A5 (en)
JPH03232683A (en) Door device for elevator
JP7260152B2 (en) Fitting frame structure

Legal Events

Date Code Title Description
A201 Request for examination
A302 Request for accelerated examination
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20150706

Year of fee payment: 4

FPAY Annual fee payment

Payment date: 20160721

Year of fee payment: 5

FPAY Annual fee payment

Payment date: 20190813

Year of fee payment: 8