EP0344196B1 - Anordnung für eine hydraulische hebebühne - Google Patents

Anordnung für eine hydraulische hebebühne Download PDF

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Publication number
EP0344196B1
EP0344196B1 EP88901664A EP88901664A EP0344196B1 EP 0344196 B1 EP0344196 B1 EP 0344196B1 EP 88901664 A EP88901664 A EP 88901664A EP 88901664 A EP88901664 A EP 88901664A EP 0344196 B1 EP0344196 B1 EP 0344196B1
Authority
EP
European Patent Office
Prior art keywords
scissor
scissor arms
section
power transmission
arrangement
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.)
Expired - Lifetime
Application number
EP88901664A
Other languages
English (en)
French (fr)
Other versions
EP0344196A1 (de
Inventor
Lars Johansson
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.)
Hymo AB
Original Assignee
Hymo AB
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 Hymo AB filed Critical Hymo AB
Priority to AT88901664T priority Critical patent/ATE80124T1/de
Publication of EP0344196A1 publication Critical patent/EP0344196A1/de
Application granted granted Critical
Publication of EP0344196B1 publication Critical patent/EP0344196B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, 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
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B66F7/08—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement hydraulically or pneumatically operated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, 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
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B66F7/065—Scissor linkages, i.e. X-configuration

Definitions

  • the present invention relates to an arrangement for a hydraulic lifting table of the scissor type with two pairs of mutually attached scissor arms, which at their ends are connected by means of pivots and rollers to a lower frame section and an upper table section, and are mutually and operatively connected to the pivotable connection, comprising a power transmission arrangement for raising and lowering the table section, wherein the power transmission arrangement contains for each pair of scissor arms a hydraulic cylinder pivotally mounted at said connection and wherein the piston rod of the hydraulic cylinder is so arranged as to interact during the raising and lowering movement of the lifting table via a roller and a shaft with at least two guide curves arranged in conjunction with the common bearing shaft for the scissor arms and operatively connected to the respective scissor arm.
  • a lifting table of the kind mentioned in the above introductory part is disclosed by SE-A-450 486.
  • This lifting table has a combination of a roller and a guiding shaft cooperating with a quoding curve and an oval opening in one of the scissor arms respectively.
  • DE-A-1 756 270 discloses a scissor type lifting table in which lifting torque is transferred from a hydrantic cylinder to a scissor arm via a roller engaging an oval opening in a pressing piece connected to the scissor arm.
  • lifting table In the case of those lifting tables which are intended to be used, for example in conjunction with a hand-operated truck or in vehicle workshops, for raising a vehicle to a comfortable working height for repair work to be carried out, it is of value for the lifting table to exhibit the minimum height possible. This is determined partly by the dimensions of the power transmission arrangement, since this must be enclosed by the table in its collapsed position, and partly by the mechanical construction of the table with regard to its intended carrying capacity and stability. On the other hand the lifting capacity of the table is determined by the maximum pressure available from the power transmission arrangement.
  • One objection of the present invention is to make available a hydraulic lifting table in which the above-mentioned disadvantages have been eliminated, which is made possible in that those scissor arms, which are pivotally connected to the frame section, consist of a beam of "U"-section open towards the top, in which the appropriate power transmission arrangement is arranged and that a transverse shaft is arranged on the upper end of the piston rod, bearing those rollers cooperating with the curves, which curves are provided onto cam members located within the U-section of the scissor arms.
  • the guide curves operatively connected to said scissor arm are linearly sloping.
  • Fig. 1 is a perspective view illustrating an embodiment of a lifting table in accordance with the present invention.
  • Fig. 2 illustrates a plan view from the side showing details of the interaction of the power transmission arrangement with the guide curves.
  • the designations 1a, 1b and 2a, 2b are used in Fig. 1 in respect of scissor arms connected together by means of shafts 1c, 2c for a hydraulic lifting table of the scissor type, which consists of a lower frame section 3 and an upper table section 4.
  • the scissor arms 1a, 2a are mutually connected at their lower ends to a shaft 5 and are pivotally mounted about same relative to the frame section 3.
  • the upper ends of the scissor arms 1b, 2b are pivotally mounted in the table section 4.
  • the lower end of the scissor arm 1b and the upper end of the scissor arm 2b are executed with rollers 6, of which those at the upper end of the scissor arm 2b are not shown in the drawing.
  • the purpose of the rollers 6 is to facilitate the movement of the aforementioned ends of the scissor arms along the frame sections and table sections, 3 and 4.
  • Each of the scissor arms 1a and 2a consists of a beam of 'U'-section open towards the top, in which there is arranged, pivotally mounted on the shaft 5, a hydraulic cylinder 7a and 7b for raising and lowering of the table section 4.
  • Each of the scissor arms 1b and 2b is manufactured from two flat steel profiles connected together at their respective ends by means of cross-pieces.
  • rollers 9a, 9b and 9c are arranged on a common shaft 10 at the outer end of the piston rod 8a of the hydraulic cylinder 7a.
  • the roller 9b interacts with a guide curve 11b, which is operatively connected to the scissor arm 1b.
  • the rollers 9a and 9c which are arranged to either side of the roller 9b in order to achieve a symmetrical load distribution, interact with two guide curves 11a and 11c, which are operatively connected to the scissor arm 1a.
  • the guide curves 11a and 11c constitute a linear gradient, and their primary function is to provide a moment arm, designated by 12 in Fig. 2, between the point of engagement of the roller 9b with the guide curve 11b and the common angle of pivoting 1c of the pair 1a, 1b of scissor arms.

Claims (2)

  1. Anordnung für einen hydraulischen Hubtisch vom Scherentypus mit zwei Paaren von gegenseitig aneinander angreifenden Scherenhebeln (1a, 1b; 2a, 2b), die an ihren Enden mittels Gelenken und Rollen mit einem unteren Rahmenteil (3) und einem oberen Tischteil (3) verbunden sind und die gegenseitig mit einem Gelenkanschluß (5) an Rahmenteil (3) in Wirkverbindung stehen, umfassend eine Kraftübertragungseinrichtung (7, 8, 9, 11) zum Anheben und Absenken des Tischteiles (4), wobei die Kraftübertragungseinrichtung (7, 8, 9, 11) für jedes Scherenhebelpaar (1a, 1b; 2a, 2b) einen Hydraulikzylinder (7a; 7b) aufweist, der an dem genannten Anschluß (5) gelenkig gelagert ist, wobei die Kolbenstange (8a, 8b) des hydraulischen Zylinders (7a; 7b) derart angeordnet ist, daß sie während der Hub- und Senkbewegung des Hubtisches über eine Rolle (9a, 9b, 9c) und eine Achse (10) mit wenigstens zwei Kurvenführungen (11a, 11b, 11c) zusammenwirkt, die in Verbindung mit der gemeinsamen Lagerachse (1c, 2c) für die Scherenhebel (1a, 1b; 2a, 2b) angeordnet ist und mit den jeweiligen Scherenhebeln (1a, 1b; 2a, 2b) in Wirkverbindung steht, dadurch gekennzeichnet, daß jene Scherenhebel (1a, 2a), die mit dem Rahmenteil gelenkig verbunden sind, aus einem Balken mit nach oben offenem U-Profil bestehen, in welchem die entsprechende Kraftübertragungseinrichtung (7, 8, 9, 11) angeordnet ist, und daß eine Querachse (10) am oberen Ende der Kolbenstange (8a) angeordnet ist, die jene Rollen (9a, 9b, 9c) trägt, welche mit den Kurvenführungen zusammenarbeitet, wobei die Kurvenführungen an Nockenelementen vorgesehen sind, die innerhalb des U-Profiles der Scherenhebel angeordnet sind.
  2. Anordnung gemäß Anspruch 1, dadurch gekennzeichnet, daß die Kurvenführungen (11a, 11c), die mit dem Scherenhebel (1a, 2a), welcher den Hydraulikzylinder enthält, in Wirkverbindung stehen, linear abfallen.
EP88901664A 1987-02-04 1988-02-04 Anordnung für eine hydraulische hebebühne Expired - Lifetime EP0344196B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88901664T ATE80124T1 (de) 1987-02-04 1988-02-04 Anordnung fuer eine hydraulische hebebuehne.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8700418A SE456499B (sv) 1987-02-04 1987-02-04 Anordning vid ett hydrauliskt lyftbord
SE8700418 1987-02-04

Publications (2)

Publication Number Publication Date
EP0344196A1 EP0344196A1 (de) 1989-12-06
EP0344196B1 true EP0344196B1 (de) 1992-09-02

Family

ID=20367389

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88901664A Expired - Lifetime EP0344196B1 (de) 1987-02-04 1988-02-04 Anordnung für eine hydraulische hebebühne

Country Status (8)

Country Link
EP (1) EP0344196B1 (de)
AT (1) ATE80124T1 (de)
AU (1) AU1293488A (de)
DE (1) DE3874328T2 (de)
DK (1) DK160019C (de)
NO (1) NO884371L (de)
SE (1) SE456499B (de)
WO (1) WO1988005759A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102963837A (zh) * 2012-11-16 2013-03-13 无锡阳工机械制造有限公司 一种升降机支架结构连接方法
US9961989B2 (en) 2016-03-07 2018-05-08 Marc Stefan Witt Radial scissor lift table and method
CN109015005A (zh) * 2018-07-26 2018-12-18 昆明理工大学 一种多维度夹具

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9302967U1 (de) * 1993-03-02 1993-04-22 Hydraulik Techniek, Emmen, Nl
JP3435119B2 (ja) * 2000-04-03 2003-08-11 株式会社メイキコウ テーブルリフト装置
US10244861B1 (en) 2015-01-24 2019-04-02 Nathan Mark Poniatowski Desktop workspace that adjusts vertically
US10618472B2 (en) 2015-08-04 2020-04-14 T-Max (Hangzhou) Technology Co., Ltd. Vehicle and vehicle step apparatus with multiple drive motors
US10384614B1 (en) 2018-07-20 2019-08-20 T-Max (Hangzhou) Technology Co., Ltd. Vehicle, running board assembly and drive assembly for running board
US11198394B2 (en) 2018-07-20 2021-12-14 T-Max (Hangzhou) Technology Co., Ltd. Vehicle running board apparatus and retractable device thereof
BE1026784B1 (fr) 2018-11-13 2020-06-15 Docmans Sprl Table elevatrice
CN110012061B (zh) 2019-02-20 2022-02-08 杭州天铭科技股份有限公司 车用装备的管理装置、车辆及服务器
WO2020177186A1 (zh) 2019-03-05 2020-09-10 杭州天铭科技股份有限公司 车用踏杠设备和车辆
WO2020181617A1 (zh) 2019-03-11 2020-09-17 杭州天铭科技股份有限公司 调节装置、调节器和减震器
US11584387B2 (en) 2019-09-16 2023-02-21 T-Max (Hangzhou) Technology Co., Ltd. Step apparatus for vehicle and vehicle
WO2021227616A1 (zh) 2020-05-11 2021-11-18 杭州天铭科技股份有限公司 一种车用踏板设备和车辆
WO2021227617A1 (zh) 2020-05-11 2021-11-18 杭州天铭科技股份有限公司 车用踏板设备和车辆

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2862689A (en) * 1955-11-03 1958-12-02 Southworth Machine Co Paper lift
US2937852A (en) * 1956-10-29 1960-05-24 Jesse E Clarke Lift device
DE1756270A1 (de) * 1968-04-29 1970-03-12 Katt Anton F Hubkolbenantrieb fuer Scherenhubelemente
DE8229071U1 (de) * 1982-10-16 1983-06-23 Flexlift Hubgeräte GmbH, 4800 Bielefeld Hubvorrichtung
SE450486B (sv) * 1983-08-29 1987-06-29 Edmo Torbjoern Ab Lyftbordskonstruktion

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102963837A (zh) * 2012-11-16 2013-03-13 无锡阳工机械制造有限公司 一种升降机支架结构连接方法
US9961989B2 (en) 2016-03-07 2018-05-08 Marc Stefan Witt Radial scissor lift table and method
CN109015005A (zh) * 2018-07-26 2018-12-18 昆明理工大学 一种多维度夹具

Also Published As

Publication number Publication date
NO884371D0 (no) 1988-10-03
DK160019B (da) 1991-01-14
AU1293488A (en) 1988-08-24
DK160019C (da) 1991-06-17
EP0344196A1 (de) 1989-12-06
SE8700418L (sv) 1988-08-05
DK528088A (da) 1988-09-22
DE3874328D1 (de) 1992-10-08
DK528088D0 (da) 1988-09-22
DE3874328T2 (de) 1993-03-04
SE8700418D0 (sv) 1987-02-04
WO1988005759A1 (en) 1988-08-11
SE456499B (sv) 1988-10-10
NO884371L (no) 1988-10-03
ATE80124T1 (de) 1992-09-15

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