EP0062057A1 - A raisable and lowerable working table or the like - Google Patents

A raisable and lowerable working table or the like

Info

Publication number
EP0062057A1
EP0062057A1 EP81902855A EP81902855A EP0062057A1 EP 0062057 A1 EP0062057 A1 EP 0062057A1 EP 81902855 A EP81902855 A EP 81902855A EP 81902855 A EP81902855 A EP 81902855A EP 0062057 A1 EP0062057 A1 EP 0062057A1
Authority
EP
European Patent Office
Prior art keywords
legs
acting
lift
link system
raisable
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.)
Ceased
Application number
EP81902855A
Other languages
German (de)
French (fr)
Inventor
Klas Karlsson
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.)
Nartransportdon Ntd AB
Original Assignee
Nartransportdon Ntd 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 Nartransportdon Ntd AB filed Critical Nartransportdon Ntd AB
Publication of EP0062057A1 publication Critical patent/EP0062057A1/en
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
    • B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
    • B25H1/14—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby with provision for adjusting the bench top
    • B25H1/16—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby with provision for adjusting the bench top in height
    • 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
    • B66F7/0625—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement with wheels for moving around the floor
    • 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
    • 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

Definitions

  • a raisable and lowerable working table or the like A raisable and lowerable working table or the like.
  • the present invention relates to a raisable and lowerable working device, e.g. a working table.
  • the device according to the invention is characterized by two vertical raising legs, which are guided each on its guide leg, which in turn are attached to a lower frame portion, and by a symmetrical link system acting between the lower frame portion and the lifting legs, a lifting motor, e.g. a garage jack, acting in the point of symmetry of said link system.
  • a lifting motor e.g. a garage jack
  • the table includes a frame with a lower portion generally referenced 2 and an upper portion generally referenced 4.
  • the lower portion includes a lower horizontal support beam 6, horizontal leg beams 8 attached to the ends of said support beam, and vertical guide beams 10 which are likewise attached nearby the ends of the beam 6.
  • the beam 6 carries a lifting motor 12, e.g. a conventional hydraulic garage jack, with lifting piston
  • the piston 14 is located in the middle between the guide beams 10 and acts on a symmetrical link system.
  • the link system includes two essentially upright links 18, which at their lower ends are pivotally carried by the beam 6. At their upper ends the links 18 are pivotally connected with one end to each one of two crossed links 20.
  • the piston 14 acts on a pivot 22 in the crossing point of the link 20.
  • the links 20 carry the upper frame portion 4'.
  • the frame portion 4 includes two vertical telescopically on the guide rods shiftable legs 24, which have pivot points 26 for the upper ends of the links 20.
  • the legs 24 are rigidly connected by means of a transverse beam 26 and carry a table disk 28.
  • the table disk 28 is, however, only illustrated as an example and pan be replaced by arbitrary devices of other kinds, which require vertical adjustability. Sinking of the legs 24 is carried through by means of a handle 30 connected via a cable 32 to a valve, not shown, of the jack 12.
  • the described link system is exactly symmetrically located with respect to the jack 12 and the legs 10, 24.
  • the link system is so dimensioned that the legs 24 are supported at the lower fixing points 34 of the guide legs 10 when the piston 14 extends completely into its cylinder.
  • the maximally out of the cylinder extended position 14 is corresponded, in the same way, by highest possible level of the table 28.
  • the transverse beams 8 at each end carry wheels 36.
  • supports for shield plates, not shown, for the link system and the lifting motor are illustrated.
  • a continuous adjustability of the height of the frame is possible and with the upper handle 30 a very accurate and flexible exact adjustment can be obtained after coarse raising has been obtained by means of the arm 16.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Structural Engineering (AREA)
  • Handcart (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)

Abstract

Table de travail possedant deux pieds de levage verticaux (24), chacun etant guide par sa jambe de guidage (10), lesquelles sont a leur tour fixees a une portion inferieure de cadre (6) et a un systeme de liaison symetrique (20, 22) agissant entre la portion inferieure de cadre et les pieds de levage, un verin de garage (12, 14) agissant sur le point de symetrie de ce systeme de liaison. Sur la portion superieure du dispositif est situe un dispositif de manoeuvre pour le moteur de levage. Les jambes de guidage sont supportees a chaque extremite par une poutre horizontale, au centre de laquelle est situe le moteur de levage, et qui repose a son tour sur des pieds supports s'etendant transversalement.Work table having two vertical lifting feet (24), each being guided by its guide leg (10), which in turn are fixed to a lower frame portion (6) and to a symmetrical connection system (20, 22) acting between the lower portion of the frame and the lifting feet, a garage cylinder (12, 14) acting on the point of symmetry of this connection system. On the upper portion of the device is located an operating device for the lifting motor. The guide legs are supported at each end by a horizontal beam, at the center of which is the lifting motor, and which in turn rests on support legs extending transversely.

Description

A raisable and lowerable working table or the like.
The present invention relates to a raisable and lowerable working device, e.g. a working table.
Most existing working tables of this kind are characterized by a complicated and thereby sensible and expensive design. The purpose of the invention is to provide a constructively simple, cheap and reliable working table, the raising device of which is furthermore little space requiring.
This purpose has been attained in that the device according to the invention is characterized by two vertical raising legs, which are guided each on its guide leg, which in turn are attached to a lower frame portion, and by a symmetrical link system acting between the lower frame portion and the lifting legs, a lifting motor, e.g. a garage jack, acting in the point of symmetry of said link system.
The invention will now be described more closely with reference to the attached drawing, that illustrates a raisable and lowerable working table in a perspective view.
The table includes a frame with a lower portion generally referenced 2 and an upper portion generally referenced 4. The lower portion includes a lower horizontal support beam 6, horizontal leg beams 8 attached to the ends of said support beam, and vertical guide beams 10 which are likewise attached nearby the ends of the beam 6. The beam 6 carries a lifting motor 12, e.g. a conventional hydraulic garage jack, with lifting piston
14 and lifting manoeuvring arm 16. The piston 14 is located in the middle between the guide beams 10 and acts on a symmetrical link system. The link system includes two essentially upright links 18, which at their lower ends are pivotally carried by the beam 6. At their upper ends the links 18 are pivotally connected with one end to each one of two crossed links 20. The piston 14 acts on a pivot 22 in the crossing point of the link 20. At their outer ends the links 20 carry the upper frame portion 4'. The frame portion 4 includes two vertical telescopically on the guide rods shiftable legs 24, which have pivot points 26 for the upper ends of the links 20. The legs 24 are rigidly connected by means of a transverse beam 26 and carry a table disk 28. The table disk 28 is, however, only illustrated as an example and pan be replaced by arbitrary devices of other kinds, which require vertical adjustability. Sinking of the legs 24 is carried through by means of a handle 30 connected via a cable 32 to a valve, not shown, of the jack 12.
The described link system is exactly symmetrically located with respect to the jack 12 and the legs 10, 24. The link system is so dimensioned that the legs 24 are supported at the lower fixing points 34 of the guide legs 10 when the piston 14 extends completely into its cylinder. The maximally out of the cylinder extended position 14 is corresponded, in the same way, by highest possible level of the table 28.
The transverse beams 8 at each end carry wheels 36. At 38 supports for shield plates, not shown, for the link system and the lifting motor are illustrated.
By means of the described symmetrical link arrangement acting on only two legs jamming has been completely eliminated, at the same time as a simple, reliable and little space requiring lifting arrangement has been provided.
A continuous adjustability of the height of the frame is possible and with the upper handle 30 a very accurate and flexible exact adjustment can be obtained after coarse raising has been obtained by means of the arm 16.

Claims

Claims .
1. A raisable and lowerable working device, e.g. a working table, c h a r a c t e r i z e d by two vertical lift legs (24), which are guided on each its guide leg (10), which in turn are attached to a lower frame portion (6,8), and by a symmetrical link system (8,20) acting between the lower frame portion and the lift legs, a lift motor (12), e.g. a garage jack, acting on the point (22) of symmetry of said symmetrical link system.
2. A device according to claim 1, c h a r a c t e r i z e d by a manoeuvering device for the lift motor located at the upper portion of the device.
3. A device according to claim 1 or 2, c h a r a c t e r i z e d in that the guide legs (10) are carried at each its end by a horizontal beam (6), on which the lift motor (12) is centrally located, and which in turn is carried by transversely extending support legs (8).
4. A device according to any of claims 1 - 3, c h a r a c t e r i z e d in that the lift legs (24), the link system (8,20) and the lift motor (12) are located in essentially the same vertical plane.
EP81902855A 1980-10-15 1981-10-14 A raisable and lowerable working table or the like Ceased EP0062057A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8007216 1980-10-15
SE8007216A SE8007216L (en) 1980-10-15 1980-10-15 HIGH AND LOWER WORK TABLE, OR LIKE

Publications (1)

Publication Number Publication Date
EP0062057A1 true EP0062057A1 (en) 1982-10-13

Family

ID=20341989

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81902855A Ceased EP0062057A1 (en) 1980-10-15 1981-10-14 A raisable and lowerable working table or the like

Country Status (5)

Country Link
EP (1) EP0062057A1 (en)
DK (1) DK259382A (en)
NO (1) NO821967L (en)
SE (1) SE8007216L (en)
WO (1) WO1982001342A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106078561A (en) * 2016-08-04 2016-11-09 国家电网公司 Transformer blower fan mounting tool and using method thereof
CN110539259A (en) * 2019-08-29 2019-12-06 南京禹智智能科技有限公司 compressing and fixing device for automobile accessory part maintenance and compressing method thereof

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8316592D0 (en) * 1983-06-17 1983-07-20 Mackrill Eng Ltd David Container handling apparatus
FR2780331B1 (en) * 1998-06-26 2003-05-02 Philippe Ringard FIXING TABLE SADDLE, TELESCOPIC WITH HYDRAULIC SYSTEM, MULTIFUNCTION
AU2010201432B2 (en) * 2009-04-17 2015-01-22 Maxi-Care Promotions Pty. Ltd. Pedestal end for patients bed
FR2951372B1 (en) * 2009-10-20 2011-12-09 Hill Rom Sas HOSPITAL OR ACCOMMODATION BED WITH ADJUSTABLE SLEEPING PLAN
CN105382786B (en) * 2015-12-10 2018-03-23 沃德传动（天津）股份有限公司 Reductor shaft mount support
FR3046787A1 (en) * 2016-01-18 2017-07-21 Entreprise Bouvier PORTAGE SYSTEM
CN109108915A (en) * 2018-09-07 2019-01-01 安徽普生源生物科技有限公司 Bottom stabilizing mechanism for mold processing machinery

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1034443A (en) * 1911-01-24 1912-08-06 Marion Hathaway Piano-bench.
GB619392A (en) * 1945-12-13 1949-03-08 Samuel Saul Jr Improvements in tiltable top work table
GB1065035A (en) * 1964-02-14 1967-04-12 Karl Georg Ilse Improvements in or relating to devices for parallel guiding of furniture parts which are adjustable in height
GB1232983A (en) * 1967-07-11 1971-05-26
GB1182164A (en) * 1967-08-11 1970-02-25 Nesbit Evans & Company Ltd J Improvements relating to Hydraulically Operated Hospital Furniture.
SE311989B (en) * 1967-11-21 1969-06-30 G Wiklund

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8201342A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106078561A (en) * 2016-08-04 2016-11-09 国家电网公司 Transformer blower fan mounting tool and using method thereof
CN110539259A (en) * 2019-08-29 2019-12-06 南京禹智智能科技有限公司 compressing and fixing device for automobile accessory part maintenance and compressing method thereof

Also Published As

Publication number Publication date
DK259382A (en) 1982-06-09
WO1982001342A1 (en) 1982-04-29
NO821967L (en) 1982-06-14
SE8007216L (en) 1982-04-16

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19820607

AK Designated contracting states

Designated state(s): DE FR GB SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 19841222

RIN1 Information on inventor provided before grant (corrected)

Inventor name: KARLSSON, KLAS