SE456499B - DEVICE AT A HYDRAULIC LIFT TABLE - Google Patents

DEVICE AT A HYDRAULIC LIFT TABLE

Info

Publication number
SE456499B
SE456499B SE8700418A SE8700418A SE456499B SE 456499 B SE456499 B SE 456499B SE 8700418 A SE8700418 A SE 8700418A SE 8700418 A SE8700418 A SE 8700418A SE 456499 B SE456499 B SE 456499B
Authority
SE
Sweden
Prior art keywords
scissor
scissor arms
power transmission
section
operatively connected
Prior art date
Application number
SE8700418A
Other languages
Swedish (sv)
Other versions
SE8700418L (en
SE8700418D0 (en
Inventor
L Johansson
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 SE8700418A priority Critical patent/SE456499B/en
Publication of SE8700418D0 publication Critical patent/SE8700418D0/en
Priority to AU12934/88A priority patent/AU1293488A/en
Priority to PCT/SE1988/000036 priority patent/WO1988005759A1/en
Priority to DE8888901664T priority patent/DE3874328T2/en
Priority to EP88901664A priority patent/EP0344196B1/en
Priority to AT88901664T priority patent/ATE80124T1/en
Publication of SE8700418L publication Critical patent/SE8700418L/en
Priority to DK528088A priority patent/DK160019C/en
Priority to NO884371A priority patent/NO884371D0/en
Publication of SE456499B publication Critical patent/SE456499B/en

Links

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

Abstract

Arrangement for a hydraulic lifting table of the scissor type. This has two pairs of mutually attached scissor arms (1a, 1b; 2a, 2b), which at their ends are connected by means of pivots and rollers to a lower frame section (3) and an upper table section (4). The scissor arms (1a, 1b; 2a, 2b) are mutually and operatively connected to the pivotable connection (5) to the frame section (3). The lifting table comprises a power transmission arrangement (7, 8, 9, 11) for raising and lowering the table section (4). The invention is characterized in that the power transmission arrangement (7, 8, 9, 11) contains for each pair of scissor arms (1a, 1b; 2a, 2b) a hydraulic cylinder (7a; 7b) pivotally mounted at said connection (5). The piston rod (8a, 8b) of the cylinder is so arranged as to interact via rollers (9a, 9b, 9c) with guide curves (11a, 11b, 11c) arranged in conjunction with the common bearing shaft (1c, 2c) for the scissor arms (1a, 1b; 2a, 2b) and operatively connected to the respective scissor arm (1a, 1b; 2a, 2b).

Description

456 499 10 15 20 25 30 35 _2- höj- och sänkningsrörelse via rullar stâ i ingrepp med åtminstone tvâ styrkurvor, vilka är anordnade i anslutning till saxarmarnas gemen- samma lagringsaxel och är operativt förbundna, med resp saxarm och de inbördes operativt förbundna saxarmarna, vilka är vridbart anslut- na till stativsektionen, utgöres av en uppåt öppen U-profilbalk, i vilken tillhörande kraftöverföringsanordning är anordnad. 456 499 10 15 20 25 30 35 _2 raising and lowering movement via rollers are engaged with at least two guide curves, which are arranged in connection with the common bearing axis of the scissor arms and are operatively connected, with the respective scissor arm and the mutually operatively connected scissor arms, which are rotatably connected to the frame section, consist of an upwardly open U-profile beam, in which associated power transmission device is arranged.

Uppfinningen skall i det följande förklaras ytterligare med hänvis- ning till bifogade ritning pâ vilken fig 1 är en perspektivvy, som visar ett utförande av ett Lyftbord enligt föreliggande uppfinning.The invention will be further explained in the following with reference to the accompanying drawing, in which Fig. 1 is a perspective view showing an embodiment of a lifting table according to the present invention.

Fig 2 visar en planvy från sidan i detalj kraftöverföringsanord- ningens samverkan med styrkurvorna.Fig. 2 shows a plan view from the side in detail of the power transmission device's interaction with the control curves.

I fig 1 betecknar 1a, 1b och Za, 2b parvid medelst axlar 10, Zc inbördes förenade saxarmar för ett hydrauliskt lyftbord av saxtyp, " vilket innefattar en undre stativsektion 3 och en övre bordsektion 4. saxarmarna 1a, 2a är vid sina nedre ändrar inbördes förenade med en axel 5 och vridbart lagrade kring denna relativt stativsektionen 3.In Fig. 1, 1a, 1b and Za, 2b denote by means of shafts 10, Zc interconnected scissor arms for a scissor-type hydraulic lifting table, "which comprises a lower frame section 3 and an upper table section 4. the scissor arms 1a, 2a are at their lower ends mutually connected to a shaft 5 and rotatably mounted about it relative to the frame section 3.

Saxarmarnas 1b, Zb övre ändar är vridbart lagrade i bordsektionen 4.The upper ends of the scissor arms 1b, Zb are rotatably mounted in the table section 4.

Saxarmarnas 1b, 2b nedre och saxarmarnas 1a, Za övre änder år ut- bildade med rullar 6, av vilka de vid saxarmens 2a övre ände och 2b nedre ände ej är synliga pâ ritningen. Rullarna 6 har till uppgift att underlätta nämnda saxarmsändars förflyttning utefter stativ- resp bordsektionerna 3 resp 4.The lower ends of the scissor arms 1b, 2b and the upper ends of the scissor arms 1a, Za are formed with rollers 6, of which those at the upper end of the scissor arm 2a and the lower end of 2b are not visible in the drawing. The rollers 6 have the task of facilitating the movement of the scissor arm ends along the stand and table sections 3 and 4, respectively.

Var och en av saxarmarna 1a resp 2a utgöres av en uppåt öppen U- profilbalk i vilken är anordnad en i axeln S vridbart lagrad hydraul- cylinder 7a resp 7b för höjning och sänkning av bordsektionen 4. Var och en av saxarmarna 1b resp 2b år tillverkade av tvâ plattjärnpro- filer vilka vid sina resp ändar är inbördes förbundna medelst tvär- slag.Each of the scissor arms 1a and 2a, respectively, consists of an upwardly open U-profile beam in which a hydraulic cylinder 7a and 7b rotatably mounted in the shaft S is arranged for raising and lowering the table section 4. Each of the scissor arms 1b and 2b, respectively, is manufactured. of two flat iron profiles which at their respective ends are interconnected by means of transverse strokes.

Eftersom kraftöverföringen frân cylindrarna 7a resp 7b till saxarms- paren 1a, 1b resp 2a, 2b år identiskt lika utförda, kommer nu med hänvisning till fig 2 endast den till cylindern 7a tillhörande kraft- överföringen att beskrivas.Since the power transmission from the cylinders 7a and 7b to the pair of scissor arms 1a, 1b and 2a, 2b, respectively, is identical in design, now with reference to Fig. 2 only the power transmission belonging to the cylinder 7a will be described.

I yttre änden av hydraulcylinderns 7a kolvstâng 8a är trenne rullar JN' '\ , -_¿'/J.ZÅ 10 15 456 499 _3_ 9a, 9b och 9c anordnade pâ en gemensam axel 10. Rullen 9b står i ingrepp med en styrkurva 11b, som är operativt förbunden med saxarmen 1b.Rullarna 9a och 9:, vilka för att upppnâ en symmetrisk belast- ningsfördelning är anordnade pâ ömse sidor om rullen 9b, står i ingrepp med tvenne styrkurvor11a och 11c, vilka är operativt för- bundna med saxarmen 1a. Styr-kurvorna 11a och 11c bildar ett linjärt sluttande plan och har primärt till uppgift att åstadkomma en momentarm, i fig 2 betecknad 12, mellan rullens 9b ingreppspunkt i styrkurvan 11b och saxarmsparets 1a, 1b gemensamma vridningsaxel 1c.At the outer end of the piston rod 8a of the hydraulic cylinder 7a, three rollers JN '' \, -_¿ '/ J.ZÅ 10 15 456 499 _3_ 9a, 9b and 9c are arranged on a common shaft 10. The roller 9b is engaged with a guide curve 11b , which are operatively connected to the scissor arm 1b. The rollers 9a and 9:, which in order to achieve a symmetrical load distribution are arranged on either side of the roller 9b, engage two guide curves 11a and 11c, which are operatively connected to the scissor arm. 1a. The guide curves 11a and 11c form a linearly sloping plane and have the primary task of providing a torque arm, designated 12 in Fig. 2, between the point of engagement of the roller 9b in the guide curve 11b and the common axis of rotation 1c of the scissor arm pair 1a, 1b.

Därigenom att den för lyftningen erforderliga kraften är uppdelad på tvâ hydraulcylindrar 7a, 7b kan dessas dimensioner hållas inom sådana gränser att lyftbordet får en mycket liten minsta höjd. Till detta bidrar också det uppfinningsenliga särdraget, nämligen att styrkur- vorna11a, 11b och 11c, mot vilka lyftkraften verkar, är anordnade vid den gemensamma lagringen för resp saxarmspar.Because the force required for lifting is divided into two hydraulic cylinders 7a, 7b, their dimensions can be kept within such limits that the lifting table has a very small minimum height. The feature according to the invention also contributes to this, namely that the guide curves 11a, 11b and 11c, against which the lifting force acts, are arranged at the common bearing for the respective pair of scissor arms.

Claims (1)

1. 456 499.,... i 1D 15 201. 456 499., ... i 1D 15 20 1. Patenk rav Anordning vid hydraulist Lyftbord av saxtyp med tvâ par inbördes förenade saxarmar (1a, 1b; Za, 2b), vilka vid sina ändar är vnid- och rullbart anslutna till en nedre stativsektion (3) och en övre bordsektion (4) och 'inbördes operativt förbundna vid den vridbara anslutningen (5) till stativsektionen (3), innefattande en kraft- överföringsanordning (7, 8, 9, 11) för höjning och sänkning av bordsektionen (4), k ä n n e t e c k n a d av kombinationen av följande utmärkande drag: kraftöverföringsanordningen (7, 8, 9, 11) innefattar för resp saxarmspar (1a, 1b; 2a, 2b) en vid den nämnda anslutningen (5) vridbart monterad hydraulcylinder (7a; 7b);* hydraulcylinderns kolvstâng (Ba, 8b) är inrättad att under lyft- bordets hela höj- och sänkningsrörelse via rullar (9a, 9b, 9c) stâ i ingrepp med åtminstone tvâ styrkurvor (11a, 11b, 11c), vilka är anordnade i anslutning till saxarmarnas (1a, 1b; Za, 2b) gemensamma lagringsaxel (1a, 2c) och är operativt förbundna, med resp saxarm (1 a, 1b; Za, 2b) och de inbördes operativt förbundna saxarmarna (1a, 2a), vilka âr vridbart anslutna till stativsektionen G), utgöres av en uppåt öppen U-profilbalk, i vilken tillhörande kraftöverföringsanord- ning (7, 8, E, 11) är anordnad. ....._. .e'~'..r¿!_e,__, Alle.,1. Patenk rav Device for hydraulist Scissor-type lifting table with two pairs of interconnected scissor arms (1a, 1b; Za, 2b), which at their ends are rotatably and rotatably connected to a lower frame section (3) and an upper table section (4) and 'operatively connected at the rotatable connection (5) to the stand section (3), comprising a power transmission device (7, 8, 9, 11) for raising and lowering the table section (4), characterized by the combination of the following features: feature: the power transmission device (7, 8, 9, 11) comprises for each pair of scissor arms (1a, 1b; 2a, 2b) a hydraulic cylinder (7a; 7b) rotatably mounted at the said connection (5); * piston rod of the hydraulic cylinder (Ba, 8b) is arranged to engage during the entire raising and lowering movement of the lifting table via rollers (9a, 9b, 9c) with at least two guide curves (11a, 11b, 11c), which are arranged in connection with the scissor arms (1a, 1b; Za, 2b) common bearing shaft (1a, 2c) and are operatively connected, with respective scissor arm (1 a, 1b; Za, 2b) and the mutually operatively connected scissor arms (1a, 2a), which are rotatably connected to the frame section G), consist of an upwardly open U-profile beam, in which the associated power transmission device (7, 8, E, 11) is arranged. ....._. .e '~' .. r¿! _e, __, Alle.,
SE8700418A 1987-02-04 1987-02-04 DEVICE AT A HYDRAULIC LIFT TABLE SE456499B (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
SE8700418A SE456499B (en) 1987-02-04 1987-02-04 DEVICE AT A HYDRAULIC LIFT TABLE
AU12934/88A AU1293488A (en) 1987-02-04 1988-02-04 Arrangement for a hydraulic lifting table
PCT/SE1988/000036 WO1988005759A1 (en) 1987-02-04 1988-02-04 Arrangement for a hydraulic lifting table
DE8888901664T DE3874328T2 (en) 1987-02-04 1988-02-04 ARRANGEMENT FOR A HYDRAULIC LIFT.
EP88901664A EP0344196B1 (en) 1987-02-04 1988-02-04 Arrangement for a hydraulic lifting table
AT88901664T ATE80124T1 (en) 1987-02-04 1988-02-04 ARRANGEMENT FOR A HYDRAULIC LIFT.
DK528088A DK160019C (en) 1987-02-04 1988-09-22 HYDRAULIC LIFT TABLE OF THE SCALE TYPE
NO884371A NO884371D0 (en) 1987-02-04 1988-10-03 DEVICE FOR HYDRAULIC LIFT TABLE.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8700418A SE456499B (en) 1987-02-04 1987-02-04 DEVICE AT A HYDRAULIC LIFT TABLE

Publications (3)

Publication Number Publication Date
SE8700418D0 SE8700418D0 (en) 1987-02-04
SE8700418L SE8700418L (en) 1988-08-05
SE456499B true SE456499B (en) 1988-10-10

Family

ID=20367389

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8700418A SE456499B (en) 1987-02-04 1987-02-04 DEVICE AT A HYDRAULIC LIFT TABLE

Country Status (8)

Country Link
EP (1) EP0344196B1 (en)
AT (1) ATE80124T1 (en)
AU (1) AU1293488A (en)
DE (1) DE3874328T2 (en)
DK (1) DK160019C (en)
NO (1) NO884371D0 (en)
SE (1) SE456499B (en)
WO (1) WO1988005759A1 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9302967U1 (en) * 1993-03-02 1993-04-22 Hydraulik Techniek, Emmen, Nl
JP3435119B2 (en) * 2000-04-03 2003-08-11 株式会社メイキコウ Table lift equipment
CN102963837A (en) * 2012-11-16 2013-03-13 无锡阳工机械制造有限公司 Connecting method of elevator bracket structure
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
US9961989B2 (en) 2016-03-07 2018-05-08 Marc Stefan Witt Radial scissor lift table and method
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
CN109015005A (en) * 2018-07-26 2018-12-18 昆明理工大学 A kind of various dimensions fixture
BE1026784B1 (en) 2018-11-13 2020-06-15 Docmans Sprl LIFTING TABLE
CN110012061B (en) 2019-02-20 2022-02-08 杭州天铭科技股份有限公司 Management device for vehicle equipment, vehicle, and server
WO2020177186A1 (en) 2019-03-05 2020-09-10 杭州天铭科技股份有限公司 Vehicle step bar device and vehicle
WO2020181617A1 (en) 2019-03-11 2020-09-17 杭州天铭科技股份有限公司 Adjustment apparatus, adjuster, and shock absorber
US11584387B2 (en) 2019-09-16 2023-02-21 T-Max (Hangzhou) Technology Co., Ltd. Step apparatus for vehicle and vehicle
WO2021227617A1 (en) 2020-05-11 2021-11-18 杭州天铭科技股份有限公司 Vehicle pedal apparatus and vehicle
WO2021227616A1 (en) 2020-05-11 2021-11-18 杭州天铭科技股份有限公司 Vehicle footboard device and vehicle

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* 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 (en) * 1968-04-29 1970-03-12 Katt Anton F Piston drive for scissor lifting elements
DE8229071U1 (en) * 1982-10-16 1983-06-23 Flexlift Hubgeräte GmbH, 4800 Bielefeld LIFTING DEVICE
SE450486B (en) * 1983-08-29 1987-06-29 Edmo Torbjoern Ab LIFT TABLE CONSTRUCTION

Also Published As

Publication number Publication date
AU1293488A (en) 1988-08-24
WO1988005759A1 (en) 1988-08-11
DE3874328T2 (en) 1993-03-04
EP0344196B1 (en) 1992-09-02
DK160019C (en) 1991-06-17
DK528088A (en) 1988-09-22
ATE80124T1 (en) 1992-09-15
SE8700418L (en) 1988-08-05
DK528088D0 (en) 1988-09-22
NO884371L (en) 1988-10-03
SE8700418D0 (en) 1987-02-04
DK160019B (en) 1991-01-14
EP0344196A1 (en) 1989-12-06
DE3874328D1 (en) 1992-10-08
NO884371D0 (en) 1988-10-03

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