US3823915A - Elevator table - Google Patents

Elevator table Download PDF

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Publication number
US3823915A
US3823915A US00319770A US31977072A US3823915A US 3823915 A US3823915 A US 3823915A US 00319770 A US00319770 A US 00319770A US 31977072 A US31977072 A US 31977072A US 3823915 A US3823915 A US 3823915A
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US
United States
Prior art keywords
platform
levers
lever
elevator table
additional
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
US00319770A
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English (en)
Inventor
S Koehler
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.)
Trepel AG
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Trepel AG
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
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Publication of US3823915A publication Critical patent/US3823915A/en
Assigned to TREPEL GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG, HEBE- UND FOERDERTECHNIK reassignment TREPEL GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG, HEBE- UND FOERDERTECHNIK ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: TREPEL AG
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
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B9/00—Tables with tops of variable height
    • A47B9/16—Tables with tops of variable height with means for, or adapted for, inclining the legs of the table for varying the height of the top, e.g. with adjustable cross legs
    • 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

  • An upper and a parallel lower platform are connected by at least two transversely spaced lever units each having two crossed levers which are pivoted at their point of intersection and whose respective upper and lower ends are provided with rollers guided in guides of the upper and lower platform, respectively.
  • the upper and/or the lower ends of the crossed levers of each unit have associated therewith at least one additional lever one end of which is pivoted to the respective platform intermediate the endsof the levers associated therewith, whereas the other end is pivoted to one of the two levers of the unit intermediate the point of intersection of the levers and the end of the lever which is connected with the respective platform. More of the additional levers can also be provided.
  • the present invention relates to a device for raising and loweringloads, and more particularly to an elevator table.
  • Such tables operating on the scissors or pantograph principle, are already known. They use an upper and a lower platform between which there are disposed two or more units each having two crossed levers. Where the levers intersect one another they are pivoted together. The lower ends of the levers are connected with the lower platform for pivoting movement about fixed pivots. The upper ends of the levers are provided with rollers which can roll in guides provided on the upper platform. It is also known to reverse the relationship so that the rollers are associated with the lower platform and the fixed pivots are associated with the upper platform.
  • an elevator table which, briefly stated, comprises an upper and a parallel lower platplatforms intermediate the lever ends associated with the same, and another end portion pivoted to one of the levers of the respective unit intermediate the point of intersection and the lever ends which are associated with this one platform.
  • FIGURE is a somewhat diagrammatic il lustration of an exemplary embodiment of the invention.
  • the term platform is here not restricted to any particular structural concept in this context; evidently, the lower platform 7 could be a plate, but it could also be a base of any suitable type or configuration.
  • the platform 6 usually is plate-shaped.
  • the two platforms 6 and 7 are-vertically spaced from one another and the elevator table is provided with two transversely spaced lever units 4, of which only one is illustrated, it being understood that the other one will be located behind it. It is, of course, also conceivable that only a single lever unit 4 might be utilized.
  • lever units 4 are composed of two crossed levers 2 each having an upper lever arm 2a and a lower lever arm 2b.
  • the levers 2 of each unit 4 are pivoted together at the pivot point 3, that is at the point of intersection of the levers 2.
  • the construction of theillustrated elevator table is conventional except for the fact that in the prior art only one set of ends (either the upper ends or the lower ends) would be provided with the rollers 1, whereas the other ends would be connected with the respective platform for movement about fixed pivots rather than on rollers.
  • this additional lever means comprises additional levers 5.
  • the levers are provided in the form of two pair of such levers, associated with the upper and lower platforms, respectively.
  • a single such lever 5 could be associated with each of the upper and lower platforms, or a single such lever 5 could be associated with one of the upper and lower platforms, or again a pair of such levers could be associated with either the platform 6 or the platform 7.
  • the levers 5 associated with the lever arms 2a are pivoted to the latter midway between the point of intersection 3 and the respective roller 1, and the opposite end of each lever 5 is pivoted to the upper platform 6 via a pivot 9.
  • the levers 5 associated with the lever arms 2b are arranged similarly, that is one end of eachlever 5 is pivoted to a respective lever arm 2b intermediate the associated roller 1 and the point of intersection 3, whereas the opposite end of the same lever-5 is pivoted withthe pivot 9 to the lower platform 7.
  • the location of the pivots 9 is midway between the ends of the lever arms 2a, or 2b, respectively.
  • Such an arrangement has the advantage that it prevents, if heavy or very heavy loads are carried on the platform 6, damage to the levers 2 and 5 if a downward deformation of the platform 6 should result vided in form of a fluid-operated cylinder and piston I unit 10 which is connected with the platform 6 and with the pivot 9, respectively.
  • the cylinder and piston unit is advantageously a hydraulic unit.
  • other means for effecting the displacement can also be utilized.
  • the necessary fluid lines and fluid supply means for the unit 10 have been omitted for the sake of clarlty.
  • the platform 6 (or 7) receives a further supporting point which means that it can be made less massive and less strong (especially if it is of large dimension) than would otherwise be necessary if there were only two supporting points (rollers 1 at the endsof the associated lever arms).
  • lf unit 4 is provided with only a single or a pair of the levers 5, then it is advantageous if these act between the levers 2 and the platform 6, rather than between the platform 7 and the levers 2. Of course, both platforms and levers can be so provided.
  • An elevator table comprising an upper and a parallel lower platform; at least one lever unit intermediate said platforms and comprising two crossed levers pivoted together at their point of intersection and having respective upper ends associated with said upper platform, and lower ends associated with said lower platform; rollers provided on said upper ends in rolling engagement with said upper platform, and on said lower ends in rolling engagement with said lower platform; additional lever means comprising additional levers, each of said additional levers having one end portion located at one of said platforms intermediate the lever ends associated therewith, and another end portion pivoted to one of the levers intermediate said point of intersection and the lever ends associated with said one platform; pivot means pivoting said one end portion to said one platform; and mounting means mounting said pivot means for movement substantially parallel to the plane of said platform relative to the latter.
  • An elevator table as defined in claim 6; and further I I comprising fluid-operated cylinder-and-piston means 5 cylmderand'plston associated with said pivot means for effecting said said cylinder-and-piston means comprises a hydraulic

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Types And Forms Of Lifts (AREA)
  • Machine Tool Units (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Handcart (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
US00319770A 1972-02-24 1972-12-29 Elevator table Expired - Lifetime US3823915A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2208777A DE2208777C3 (de) 1972-02-24 1972-02-24 Scherenhebe tisch

Publications (1)

Publication Number Publication Date
US3823915A true US3823915A (en) 1974-07-16

Family

ID=5836987

Family Applications (1)

Application Number Title Priority Date Filing Date
US00319770A Expired - Lifetime US3823915A (en) 1972-02-24 1972-12-29 Elevator table

Country Status (8)

Country Link
US (1) US3823915A (xx)
BE (1) BE791776A (xx)
DE (1) DE2208777C3 (xx)
ES (1) ES408742A1 (xx)
IT (1) IT972219B (xx)
NL (1) NL7214670A (xx)
NO (1) NO137540C (xx)
SE (1) SE377322B (xx)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3994369A (en) * 1975-05-08 1976-11-30 Lawrence Peska Associates, Inc. Emergency vehicle brake
US4194723A (en) * 1978-04-14 1980-03-25 Jlg Industries, Inc. Scissors linkage workman's platform
US4381101A (en) * 1981-02-23 1983-04-26 Halliburton Company Draft gear removal apparatus
US4405116A (en) * 1980-01-31 1983-09-20 Eisenberg Hans Jochen Adjustable pedestal trestle for theater stages or the like
US4927127A (en) * 1987-08-12 1990-05-22 U.S. Philips Corporation Adjustable support table for medical use
DE9413017U1 (de) * 1994-08-12 1994-10-06 FAC Frank Abels Consulting & Technology GmbH, 29633 Munster Scherenhubbühne
FR2839868A1 (fr) * 2002-05-23 2003-11-28 Jean Claude Leglise Dispositif de support pliable, notamment pour table
US6715724B2 (en) * 2002-04-09 2004-04-06 Hon Technology Inc. Adjustable support for a fireplace
WO2005044714A1 (en) * 2003-11-07 2005-05-19 Maarten Van Dalsen Load displacer
WO2007088145A1 (en) * 2006-02-02 2007-08-09 O.Me.R. S.P.A. Improved pantograph lift
EP1914193A1 (fr) * 2006-10-20 2008-04-23 Rotobloc-PSP SARL Table élévatrica à ciseau
US20110163215A1 (en) * 2005-10-03 2011-07-07 Peerless Industries, Inc. Pull-Out Swivel Mount
US9808080B2 (en) 2015-04-01 2017-11-07 Kinder Design Inc. Portable height-adjustable tabletop assembly and method of adjusting a height of the same
US20170340104A1 (en) * 2016-05-27 2017-11-30 Kelly International Corp. Lifting platform
US20210070591A1 (en) * 2018-03-16 2021-03-11 Brilliant Stages Limited Lift
US11382419B2 (en) * 2017-01-06 2022-07-12 Loctek Inc. Desk-mounted lifting platform
US11388989B1 (en) 2015-01-24 2022-07-19 Office Kick, Inc. Desktop workspace that adjusts vertically
US11388991B1 (en) 2017-07-08 2022-07-19 Office Kick, Inc. Height adjustable desktop
EP3069047B1 (en) * 2013-11-11 2023-05-17 Soylu, Resit A mechanical torque generator and related kinematic chains
USD1007804S1 (en) * 2023-05-15 2023-12-12 Bean's Best, LLC Heavy-duty scissor jack
US12102229B1 (en) 2023-10-04 2024-10-01 Office Kick, Inc. Desktop workspace that adjusts vertically

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0328935A1 (de) * 1988-02-19 1989-08-23 Autop - Perkute Maschinenbau Gmbh Auffahrbühne für einen Arbeits- und Inspektionsstand für Kraftfahrzeuge
DE19856206A1 (de) * 1998-12-05 2000-06-15 Eckhardt Penzek Scherenhubtisch

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1080750B (de) * 1955-05-16 1960-04-28 Wilhelm Ludowici Dr Ing Hebevorrichtung mit Nuernberger Schere
US3112676A (en) * 1959-06-16 1963-12-03 Amalgamated Dental Co Ltd Hoist
US3623707A (en) * 1969-11-05 1971-11-30 Chem Rubber Co Laboratory jack

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1080750B (de) * 1955-05-16 1960-04-28 Wilhelm Ludowici Dr Ing Hebevorrichtung mit Nuernberger Schere
US3112676A (en) * 1959-06-16 1963-12-03 Amalgamated Dental Co Ltd Hoist
US3623707A (en) * 1969-11-05 1971-11-30 Chem Rubber Co Laboratory jack

Cited By (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3994369A (en) * 1975-05-08 1976-11-30 Lawrence Peska Associates, Inc. Emergency vehicle brake
US4194723A (en) * 1978-04-14 1980-03-25 Jlg Industries, Inc. Scissors linkage workman's platform
US4405116A (en) * 1980-01-31 1983-09-20 Eisenberg Hans Jochen Adjustable pedestal trestle for theater stages or the like
US4381101A (en) * 1981-02-23 1983-04-26 Halliburton Company Draft gear removal apparatus
US4927127A (en) * 1987-08-12 1990-05-22 U.S. Philips Corporation Adjustable support table for medical use
DE9413017U1 (de) * 1994-08-12 1994-10-06 FAC Frank Abels Consulting & Technology GmbH, 29633 Munster Scherenhubbühne
US6715724B2 (en) * 2002-04-09 2004-04-06 Hon Technology Inc. Adjustable support for a fireplace
FR2839868A1 (fr) * 2002-05-23 2003-11-28 Jean Claude Leglise Dispositif de support pliable, notamment pour table
WO2005044714A1 (en) * 2003-11-07 2005-05-19 Maarten Van Dalsen Load displacer
US20110163215A1 (en) * 2005-10-03 2011-07-07 Peerless Industries, Inc. Pull-Out Swivel Mount
US9551453B2 (en) * 2005-10-03 2017-01-24 Peerless Industries, Inc. Pull-out swivel mount
US10107447B2 (en) 2005-10-03 2018-10-23 Peerless Industries, Inc. Pull-out swivel mount
US9851047B1 (en) 2005-10-03 2017-12-26 Peerless Industries, Inc. Pull-out swivel mount
WO2007088145A1 (en) * 2006-02-02 2007-08-09 O.Me.R. S.P.A. Improved pantograph lift
EP1914193A1 (fr) * 2006-10-20 2008-04-23 Rotobloc-PSP SARL Table élévatrica à ciseau
FR2907441A1 (fr) * 2006-10-20 2008-04-25 Rotobloc Psp Sarl Table elevatrice a ciseau.
EP3069047B1 (en) * 2013-11-11 2023-05-17 Soylu, Resit A mechanical torque generator and related kinematic chains
US11388989B1 (en) 2015-01-24 2022-07-19 Office Kick, Inc. Desktop workspace that adjusts vertically
US11464325B1 (en) * 2015-01-24 2022-10-11 Office Kick, Inc. Desktop workspace that adjusts vertically
US12082695B1 (en) 2015-01-24 2024-09-10 Office Kick, Inc. Desktop workspace that adjusts vertically
US11910926B1 (en) 2015-01-24 2024-02-27 Office Kick, Inc. Desktop workspace that adjusts vertically
US12082696B1 (en) 2015-01-24 2024-09-10 Office Kick, Inc. Desktop workspace that adjusts vertically
US11980289B1 (en) 2015-01-24 2024-05-14 Office Kick, Inc. Desktop workspace that adjusts vertically
US11950699B1 (en) 2015-01-24 2024-04-09 Office Kick, Inc. Desktop workspace that adjusts vertically
US11925264B1 (en) 2015-01-24 2024-03-12 Office Kick, Inc. Desktop workspace that adjusts vertically
US11470959B1 (en) 2015-01-24 2022-10-18 Office Kick, Inc. Desktop workspace that adjusts vertically
US11864654B1 (en) 2015-01-24 2024-01-09 Office Kick, Inc. Desktop workspace that adjusts vertically
US11800927B1 (en) 2015-01-24 2023-10-31 Office Kick, Inc. Desktop workspace that adjusts vertically
US11944196B1 (en) 2015-01-24 2024-04-02 Office Kick, Inc. Desktop workspace that adjusts vertically
US11849843B1 (en) 2015-01-24 2023-12-26 Office Kick, Inc. Desktop workspace that adjusts vertically
US11857073B1 (en) 2015-01-24 2024-01-02 Office Kick, Inc. Desktop workspace that adjusts vertically
US9808080B2 (en) 2015-04-01 2017-11-07 Kinder Design Inc. Portable height-adjustable tabletop assembly and method of adjusting a height of the same
US20170340104A1 (en) * 2016-05-27 2017-11-30 Kelly International Corp. Lifting platform
US20220257006A1 (en) * 2017-01-06 2022-08-18 Loctek Inc. Desk-mounted lifting platform
US11382419B2 (en) * 2017-01-06 2022-07-12 Loctek Inc. Desk-mounted lifting platform
US11395544B1 (en) 2017-07-08 2022-07-26 Office Kick, Inc. Keyboard tray that adjusts horizontally and vertically
US11388991B1 (en) 2017-07-08 2022-07-19 Office Kick, Inc. Height adjustable desktop
US20210070591A1 (en) * 2018-03-16 2021-03-11 Brilliant Stages Limited Lift
US12049395B2 (en) * 2018-03-16 2024-07-30 Brilliant Stages Limited Lift
USD1007804S1 (en) * 2023-05-15 2023-12-12 Bean's Best, LLC Heavy-duty scissor jack
US12102229B1 (en) 2023-10-04 2024-10-01 Office Kick, Inc. Desktop workspace that adjusts vertically

Also Published As

Publication number Publication date
NO137540B (no) 1977-12-05
SE377322B (xx) 1975-06-30
BE791776A (fr) 1973-03-16
IT972219B (it) 1974-05-20
DE2208777A1 (de) 1973-08-30
ES408742A1 (es) 1975-10-01
DE2208777C3 (de) 1980-01-24
DE2208777B2 (de) 1979-05-31
NO137540C (no) 1978-03-15
NL7214670A (xx) 1973-08-28

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Legal Events

Date Code Title Description
AS Assignment

Owner name: TREPEL GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG, HEB

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:TREPEL AG;REEL/FRAME:004709/0580

Effective date: 19870402