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KR19990062843A - Lift prevention device of lift - Google Patents

Lift prevention device of lift Download PDF

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Publication number
KR19990062843A
KR19990062843A KR1019980053351A KR19980053351A KR19990062843A KR 19990062843 A KR19990062843 A KR 19990062843A KR 1019980053351 A KR1019980053351 A KR 1019980053351A KR 19980053351 A KR19980053351 A KR 19980053351A KR 19990062843 A KR19990062843 A KR 19990062843A
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KR
South Korea
Prior art keywords
rack
cylinder
lift
connecting plate
rack member
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Application number
KR1019980053351A
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Korean (ko)
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KR100281005B1 (en
Inventor
슈운지 이소가이
신타로 오쿠노
Original Assignee
스기우라 야스나리
스기야스고교 가부시키가이샤
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Publication of KR19990062843A publication Critical patent/KR19990062843A/en
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Publication of KR100281005B1 publication Critical patent/KR100281005B1/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66FHOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/28Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66FHOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/06Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66FHOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F17/00Safety devices, e.g. for limiting or indicating lifting force

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Actuator (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Abstract

본 발명은, 용접이나 볼트를 사용하지 않고 랙부재를 리프트 실린더에 간단하면서도 정밀도 좋게 조립하는 장치에 관한 것이다.The present invention relates to an apparatus for simply and precisely assembling a rack member to a lift cylinder without using welding or bolts.

본 발명에 있어서는, 랙부재(12)를 1매의 연결판(13)과 2매의 랙판(14)으로 가로가 긴 ㄷ자형으로 형성한다. 연결판(13)에 끼워맞춤구멍(15)을 설치하고, 이것을 리프트 실린더(1)의 헤드 커버(5)의 작은 지름부(6)에 끼워 맞춘다. 랙판(14)에 축 통과구멍(16)을 설치하여 이 구멍(16)에 실린더 설치축(9)을 끼워 통하게 하여, 설치축(9)을 개재하여 랙판(14)을 바닥 브래킷(7)에 결합한다.In the present invention, the rack member 12 is formed in a long U-shape by the connecting plate 13 and the two rack plates 14. The fitting hole 15 is provided in the connecting plate 13, and the fitting hole 15 is fitted into the small diameter part 6 of the head cover 5 of the lift cylinder 1. An axial passage hole 16 is provided in the rack plate 14 to allow the cylinder mounting shaft 9 to fit through the hole 16 so that the rack plate 14 is attached to the bottom bracket 7 via the mounting shaft 9. To combine.

Description

리프트의 하강금지장치Lift prevention device of lift

본 발명은 리프트의 하강금지장치에 관한 것이다.The present invention relates to an anti-descent device of the lift.

종래, X형 링크식 리프트의 하강금지장치로서, 도 3에 나타낸 바와 같이, 짐받이(31)를 승강하는 리프트 실린더(32)에 랙(33)을 조립하고, 랙(33)에 포올(34)을 걸어 고정하여 짐받이(31)의 하강을 저지하는 기술이 알려져 있다. 이 종래 장치에서는, 도 4에 나타낸 바와 같이, 랙(33)이 리프트 실린더(32)의 양쪽면에 용접(35)에 의해 고정되어 있다. 또, 도 5에 나타낸 바와 같이, 리프트 실린더(32)의 양 끝단부에 블록(36)을 용접(37)으로 고정하고, 각 블록(36)의 양쪽면에 랙(33)을 볼트(38)로 분해 가능하게 조립하는 기술도 알려져 있다.Conventionally, as the lowering device of the X-type link lift, as shown in FIG. The technique which stops the descent of the carrier 31 by fixing by hanging is known. In this conventional apparatus, as shown in FIG. 4, the rack 33 is fixed to both surfaces of the lift cylinder 32 by welding 35. 5, the block 36 is fixed to the both ends of the lift cylinder 32 by welding 37, and the rack 33 is bolted to both sides of each block 36. There is also known a technique for assembling so as to be decomposable.

그런데, 도 4의 하강금지장치에 의하면 이하의 문제점이 있었다.By the way, according to the fall prohibition apparatus of FIG. 4, there existed the following problems.

(1) 랙(33)을 용접(35)으로 실린더(32)에 조립하고 있기 때문에, 용접시의 열에 의해 실린더(32) 및 랙(33)에 왜곡이나 변형이 발생하기 쉽다.(1) Since the rack 33 is assembled to the cylinder 32 by welding 35, distortion and deformation are likely to occur in the cylinder 32 and the rack 33 due to the heat during welding.

(2) 랙(33)은 소모품이나 이것만 교환할 수 없기 때문에, 실린더(32)를 포함하는 어셈블리 교환이 필요하게 되어 리프트의 러닝 코스트가 높아진다.(2) Since the rack 33 cannot replace only consumables or this, it is necessary to replace the assembly including the cylinder 32, thereby increasing the running cost of the lift.

(3) 랙(33)에 포올(34)이 걸려 하강고정이 된 상태에서는 랙(33)에 가해지는 부하에 의하여 실린더(32)가 변형된다.(3) The cylinder 32 is deformed by the load applied to the rack 33 in the state in which the pawl 34 is caught by the rack 33 and lowered and fixed.

또, 도 5의 하강금지장치에는 다음의 문제점이 있었다.In addition, the falling prohibition apparatus of FIG. 5 has the following problems.

(4) 블록(36)을 용접(37)에 의해 실린더(32)에 조립하고 있기 때문에, 상기 (1)과 마찬가지로 왜곡이나 변형이 발생하기 쉽다.(4) Since the block 36 is assembled to the cylinder 32 by the welding 37, distortion and deformation are likely to occur in the same manner as in the above (1).

(5) 랙(33)을 볼트(38)로 설치하고 있기 때문에, 랙(33)만의 교환은 용이하나 설치오차가 생기기 쉬워, 2매의 랙(33)의 피치를 정확하게 정합시킬 필요가 있다.(5) Since the rack 33 is provided with the bolts 38, the rack 33 is easy to replace, but installation errors are likely to occur, and the pitches of the two racks 33 need to be accurately matched.

(6) 블록(36)에 랙(33)을 볼트로 조립하고 있기 때문에, 부품점수가 늘어나고 조립이 번거롭다.(6) Since the rack 33 is assembled to the block 36 by bolts, the number of parts is increased and assembly is cumbersome.

또한, 양자의 하강금지장치에는 공통적인 다음의 문제점이 있었다.In addition, both of the lowering prohibiting devices have the following problems in common.

(7) (1), (3), (4)와 같은 실린더의 왜곡이나 변형에 의하여 오일누설이 발생하는 일이 있으며, 오일누설을 방지하려면, 실린더에 여분의 강도를 갖게 하거나 장치 조립시에 특별한 용접지그를 사용하거나 할 필요가 있다.(7) Oil leakage may occur due to the distortion or deformation of the cylinder such as (1), (3), or (4) .To prevent oil leakage, provide extra strength to the cylinder or It is necessary to use or do special welding jig.

그래서, 본 발명의 과제는, 용접이나 볼트를 사용하지 않고 랙부재를 리프트 실린더에 간단하면서도 정밀도 좋게 조립할 수 있는 리프트의 하강금지장치를 제공하는 데에 있다.Accordingly, an object of the present invention is to provide a lift prohibition device for lifting, which can simply and accurately assemble a rack member to a lift cylinder without using welding or bolts.

도 1은 본 발명의 일 실시형태를 나타낸 하강금지장치의 사시도,1 is a perspective view of the falling prohibition device showing an embodiment of the present invention;

도 2는 상기 장치를 분해하여 나타낸 사시도,2 is an exploded perspective view of the apparatus;

도 3은 X형 링크식 리프트의 개략도,3 is a schematic view of an X-type linked lift,

도 4는 종래의 하강금지장치를 나타낸 사시도,Figure 4 is a perspective view showing a conventional fall prohibition device,

도 5는 종래의 다른 하강금지장치를 나타낸 사시도.5 is a perspective view showing another conventional drop prohibition device.

※도면의 주요 부분에 대한 부호의 설명※ Explanation of code for main part of drawing

1 : 리프트 실린더 5 : 헤드 커버1: lift cylinder 5: head cover

6 : 작은 지름부 7 : 바닥 브래킷6: small diameter portion 7: bottom bracket

9 : 실린더 설치축 12 : 랙부재9 cylinder mounting shaft 12 rack member

13 : 연결판 14 : 랙판13: connecting plate 14: rack plate

15 : 끼워맞춤구멍15: fitting hole

상기의 과제를 해결하기 위하여, 본 발명은, 리프트 실린더에 조립한 랙부재에 포올을 걸어 고정하여 짐받이의 하강을 저지하는 리프트의 하강금지장치에 있어서, 랙부재를 연결판과 2매의 랙판으로 가로가 긴 ㄷ자형으로 형성하고, 연결판에 실린더 헤드의 작은 지름부에 끼워 맞추는 구멍을 설치하여 랙판을 실린더 설치축을 개재하여 실린더 바닥의 브래킷에 결합한 것을 특징으로 한다.MEANS TO SOLVE THE PROBLEM In order to solve the said subject, in this invention, in the fall restraint apparatus of the lift which hangs a pole to the rack member assembled to the lift cylinder, and prevents the fall of a carrier, a rack member is connected to a connecting plate and two rack boards. It is formed in a long U-shape, and is installed in the connecting plate to fit the small diameter portion of the cylinder head, the rack plate is coupled to the bracket of the cylinder via the cylinder mounting shaft.

이하, 본 발명의 실시형태를 도면에 의거하여 설명한다. 도 1 및 도 2에 나타낸 바와 같이, 리프트 실린더(1)는 실린더 튜브(2)와 피스톤 로드(3)를 구비하며, 실린더 튜브(2)를 예를 들어 X형 링크식 리프트의 프레임(4)에 설치하고, 유압으로 피스톤 로드(3)를 신축하여 짐받이(31)(도 3 참조)를 승강하도록 구성되어 있다. 실린더 튜브(2)의 끝단에는 헤드 커버(5)가 나사 고정되고, 이 커버(5)에는 작은 지름부(6)가 설치되어 있다. 실린더 튜브(2)의 기단(基端)에는 바닥 브래킷(7)이 고정되고, 이 브래킷(7)에는 축 통과구멍(8)이 설치되어 있다. 그리고, 리프트 실린더(1)는 축 통과구멍(8)에 끼워 통하게 한 실린더 설치축(9)에 의하여 프레임(4)의 지지부(10)에 요동 가능하게 피벗 부착되어 있다.EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described based on drawing. As shown in FIGS. 1 and 2, the lift cylinder 1 has a cylinder tube 2 and a piston rod 3, and the cylinder tube 2 is for example a frame 4 of an X-linked lift. The piston rod 3 is stretched and contracted by hydraulic pressure, and the bearing 31 (refer FIG. 3) is raised and lowered. The head cover 5 is screwed to the end of the cylinder tube 2, and a small diameter part 6 is provided on the cover 5. A bottom bracket 7 is fixed to the base end of the cylinder tube 2, and an axial passage hole 8 is provided in the bracket 7. And the lift cylinder 1 is pivotally attached to the support part 10 of the frame 4 by the cylinder installation shaft 9 which let the shaft cylinder hole 8 pass.

리프트 실린더(1)에는 랙부재(12)가 조립되고, 이 랙부재(12)와 포올(34)(도 3 참조)에 의하여 짐받이(31)의 하강을 저지하는 하강금지장치가 구성되어 있다. 랙부재(12)는 1매의 연결판(13)과 2매의 랙판(14)으로 가로가 긴 ㄷ자형으로 형성되어 있다. 연결판(13)에는 헤드 커버(5)의 작은 지름부(6)에 끼워 맞추는 끼워맞춤구멍(15)이 설치되어 있다. 랙판(14)의 한쪽 끝단은 용접 등의 적절한 고정수단으로 연결판(13)에 일체적으로 연결되고, 랙판(14)의 다른쪽 끝단에는 축 통과구멍(16)이 설치되어 있다. 그리고, 랙판(14)은 축 통과구멍(16)에 끼워 통하게 한 실린더 설치축(9)을 개재하여 바닥 브래킷(7)에 결합되어 있다.The rack member 12 is assembled to the lift cylinder 1, and the lowering prohibiting device which prevents the fall of the carrier 31 by this rack member 12 and the pole 34 (refer FIG. 3) is comprised. The rack member 12 is formed in a long U-shape with a connecting plate 13 and two rack plates 14. The connecting plate 13 is provided with fitting holes 15 for fitting into the small diameter portion 6 of the head cover 5. One end of the rack plate 14 is integrally connected to the connecting plate 13 by an appropriate fixing means such as welding, and an axial passage hole 16 is provided at the other end of the rack plate 14. The rack plate 14 is coupled to the bottom bracket 7 via the cylinder mounting shaft 9 which is fitted through the shaft passage hole 16.

상기 구성의 하강금지장치에 있어서, 랙부재(12)를 리프트 실린더(1)에 조립할 때에는, 연결판(13)의 끼워맞춤구멍(15)을 헤드 커버(5)의 작은 지름부(6)에 끼워 맞추고, 실린더 설치축(9)을 랙판(14)의 축 통과구멍(16) 및 바닥 브래킷(7)의 축 통과구멍(8)에 끼워 통하게 한다. 또, 리프트 운전중에 하강금지가 되었을 때에는, 랙부재(12)에 가해지는 부하의 대부분이 2매의 랙판(14)을 개재하여 실린더 설치축(9)에 의하여 지지되기 때문에, 실린더 튜브(2)에는 과대한 압축력이 작용하지 않는다. 따라서, 본 실시형태의 하강금지장치에 의하면 이하의 작용효과를 기대할 수 있다.In the lowering prohibition apparatus of the above structure, when assembling the rack member 12 to the lift cylinder 1, the fitting hole 15 of the connecting plate 13 is connected to the small diameter portion 6 of the head cover 5. The cylinder mounting shaft 9 is fitted into the shaft passage hole 16 of the rack plate 14 and the shaft passage hole 8 of the bottom bracket 7. In addition, when the dropping is prohibited during the lift operation, most of the load applied to the rack member 12 is supported by the cylinder mounting shaft 9 via the two rack plates 14, so that the cylinder tube 2 Excessive compressive force does not work. Therefore, according to the fall prohibition apparatus of this embodiment, the following effects can be expected.

(1) 랙부재(12)를 용접 없이 조립하기 때문에, 용접열에 의한 실린더 튜브(2)나 랙판(14) 등의 변형을 방지할 수 있다.(1) Since the rack member 12 is assembled without welding, deformation of the cylinder tube 2, the rack plate 14, etc. by the heat of welding can be prevented.

(2) 랙부재(12)를 볼트체결 없이 조립하기 때문에, 조립작업이 용이하고 볼트조립에 의한 오차를 회피하여 2매의 랙판(14)의 피치를 정확하게 정합시킬 수 있다.(2) Since the rack member 12 is assembled without bolt fastening, the assembling work is easy and the pitch of the two rack plates 14 can be accurately matched, avoiding the error caused by the bolt assembly.

(3) 랙부재(12)를 리프트 실린더(1)의 기존 부품을 이용하여 조립하기 때문에, 장치 전체의 부품점수를 적게 하여 소형 경량화가 가능하게 된다.(3) Since the rack member 12 is assembled using the existing parts of the lift cylinder 1, it is possible to reduce the number of parts of the entire apparatus and to reduce the size and weight.

(4) 랙판(14)이 소모되었을 경우, 랙부재(12)만을 교환하면 되고 리프트 실린더(1)의 교환이 불필요하여, 메인터넌스를 용이하게 할 수 있고 리프트의 러닝 코스트도 싸게 된다.(4) When the rack plate 14 is exhausted, only the rack member 12 needs to be replaced, so that the lift cylinder 1 is not replaced, so that maintenance can be facilitated and the running cost of the lift is also low.

(5) 하강금지가 되었을 때이더라도 부하에 의하여 실린더 튜브(2)가 잘 변형되지 않는다.(5) Even when it is prohibited to descend, the cylinder tube 2 is hardly deformed by the load.

(6) 연결판(13)을 헤드 커버(5)의 이완금지로서 기능시킬 수 있다.(6) The connecting plate 13 can function as restraint of the head cover 5.

(7) 랙부재(12)가 리프트 실린더(1)에 대하여 완전히 고정되어 있지 않으므로, 편하중에 의하여 좌우에 불균등한 부하가 걸렸을 때이더라도 랙부재(12)가 미동하여 2매의 랙판(14)의 양쪽에 힘을 작용시킬 수 있음과 동시에, 실린더 튜브(2)의 비틀림을 미연에 방지할 수 있다.(7) Since the rack member 12 is not completely fixed to the lift cylinder 1, even when an uneven load is applied to the left and right by a single load, the rack member 12 is finely moved so that the two rack plates 14 A force can be applied to both sides, and the torsion of the cylinder tube 2 can be prevented beforehand.

또한, 본 발명은 X형 링크식 리프트에만 적용되는 것이 아니라, 컬럼식 또는 사판식 등의 각종 리프트에 적용할 수도 있다. 그 외, 본 발명의 취지를 벗어나지 않는 범위에서 각 부의 형상 및 구성을 적절히 변경하여 실시하는 것도 가능하다.In addition, the present invention is not only applied to the X-type link lift, but can be applied to various lifts such as column type or swash plate type. In addition, it is also possible to change suitably the shape and structure of each part, and implement it in the range which does not deviate from the meaning of this invention.

이상으로 상세하게 서술한 바와 같이, 본 발명의 하강금지장치에 의하면, 랙부재를 연결판과 2매의 랙판으로 가로가 긴 ㄷ자형으로 형성하고, 연결판에 실린더 헤드의 작은 지름부에 끼워 맞추는 구멍을 설치하여 랙판을 실린더 설치축을 개재하여 실린더 바닥의 브래킷에 결합하였으므로, 용접이나 볼트를 사용하지 않고 랙부재를 리프트 실린더에 간단하면서도 정밀도 좋게 조립할 수 있다는 뛰어난 효과를 나타낸다.As described in detail above, according to the lowering prohibiting apparatus of the present invention, the rack member is formed into a long U-shape with a connecting plate and two rack plates, and fits into the small diameter portion of the cylinder head on the connecting plate. Since the rack plate is attached to the bracket at the bottom of the cylinder via the cylinder mounting shaft through the hole, the rack member can be easily and accurately assembled to the lift cylinder without welding or bolts.

Claims (1)

리프트 실린더에 조립한 랙부재에 포올을 걸어 고정하여 짐받이의 하강을 저지하는 리프트의 하강금지장치에 있어서,In the lift restraint device for stopping the lowering of the carrier by hanging the pole to the rack member assembled to the lift cylinder, 랙부재를 연결판과 2매의 랙판으로 가로가 긴 ㄷ자형으로 형성하고, 연결판에 실린더 헤드의 작은 지름부에 끼워 맞추는 구멍을 설치하여 랙판을 실린더 설치축을 개재하여 실린더 바닥의 브래킷에 결합한 것을 특징으로 하는 하강금지장치.The rack member is formed into a long U-shape with a connecting plate and two rack plates, and a hole is fitted to the small diameter portion of the cylinder head in the connecting plate, and the rack plate is joined to the bracket at the bottom of the cylinder via the cylinder mounting shaft. A falling prohibition device, characterized in that.
KR1019980053351A 1997-12-08 1998-12-07 Lift prevention device of lift KR100281005B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP33735797A JP3755700B2 (en) 1997-12-08 1997-12-08 Lift lowering stop device
JP9-337357 1997-12-08

Publications (2)

Publication Number Publication Date
KR19990062843A true KR19990062843A (en) 1999-07-26
KR100281005B1 KR100281005B1 (en) 2001-02-01

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JP (1) JP3755700B2 (en)
KR (1) KR100281005B1 (en)
TW (1) TW379754U (en)

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Publication number Priority date Publication date Assignee Title
CN102849653A (en) * 2012-09-22 2013-01-02 济南华北升降平台制造有限公司 Downward gliding prevention device of scissor type lifting platform
CN103693584B (en) * 2013-12-23 2016-08-17 常熟通润汽车零部件股份有限公司 Can automatically compensate double shearing type lifters of difference in height
CN103738879A (en) * 2014-01-16 2014-04-23 赛埃孚汽车保修设备(太仓)有限公司 Superthin scissor lift
CN106986282A (en) * 2017-04-11 2017-07-28 桐乡市民安纺织有限责任公司 A kind of lift stock supporting mechanism

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TW379754U (en) 2000-01-11
KR100281005B1 (en) 2001-02-01
JP3755700B2 (en) 2006-03-15

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