EP3385212A1 - Gehebeltes kipp- oder hubscherensystem, verfahren zum betrieb und verwendungen davon - Google Patents

Gehebeltes kipp- oder hubscherensystem, verfahren zum betrieb und verwendungen davon Download PDF

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Publication number
EP3385212A1
EP3385212A1 EP18166392.3A EP18166392A EP3385212A1 EP 3385212 A1 EP3385212 A1 EP 3385212A1 EP 18166392 A EP18166392 A EP 18166392A EP 3385212 A1 EP3385212 A1 EP 3385212A1
Authority
EP
European Patent Office
Prior art keywords
scissors
base
hinged
platform
arm
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.)
Granted
Application number
EP18166392.3A
Other languages
English (en)
French (fr)
Other versions
EP3385212B1 (de
Inventor
Da Silva Bernardes Rui Jorge
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.)
Aber Hydraulics SA
Original Assignee
Aber- Embraiagens E Comandos Hidraulicos Antonio Bernardes Lda
ABER EMBRAIAGENS E COMANDOS HIDRAULICOS ANTONIO BERNARDES Lda
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 Aber- Embraiagens E Comandos Hidraulicos Antonio Bernardes Lda, ABER EMBRAIAGENS E COMANDOS HIDRAULICOS ANTONIO BERNARDES Lda filed Critical Aber- Embraiagens E Comandos Hidraulicos Antonio Bernardes Lda
Publication of EP3385212A1 publication Critical patent/EP3385212A1/de
Application granted granted Critical
Publication of EP3385212B1 publication Critical patent/EP3385212B1/de
Active 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
    • B66F7/0691—Asymmetric linkages, i.e. Y-configuration

Definitions

  • the present disclosure relates to a leveraged tilting or lifting scissors, methods of operation and uses thereof.
  • a scissors device for tilting or lifting a platform, of a cargo platform, with respect to a base, comprising
  • the base is incorporated in a cargo vehicle, or on the ground.
  • a scissors device is further described for tilting a cargo platform with respect to a base, comprising
  • the hinge with the base of the hydraulic cylinder (4) and the hinge with the base of the lower arm is the same hinge.
  • the lever arm is V-shaped, in particular with the inflection of the V in the hinge with the upper arm.
  • the surface solidary to the base comprises a sliding rail, preferably the protruding end of the lever is a bearing, a caster, a bushing, a pulley, or a skid, among others.
  • the protruding end of said lever arm comprises a roller for linearly sliding over the surface solidary to the base.
  • said device may comprise a plurality of scissors, namely 2, 3, 4, 5 or more.
  • said scissors device for tilting or lifting a cargo platform relative to a base comprises a hydraulic cylinder for actuating the scissors device, two arms hinged together allowing their relative movement and a lever arm, the cylinder being hinged at its first end to the base, the upper arm being hinged to the cargo platform and the lower arm being hinged to the base; the lever arm is hinged to the upper arm and the second end of the hydraulic/pneumatic cylinder, wherein said lever arm comprises a protruding end with a skid enabling the upper arm to be supported in part of the movement of said scissors comprising its closed position, by linearly sliding over a surface solidary to the base, the same applying to the opening thereof.
  • said device for tilting a platform comprises a hydraulic/pneumatic/electric cylinder for actuating the scissors device and hinged at its first end to the base, a scissors having two arms hinged together, an upper arm and a lower arm, wherein the lower arm is hinged to a base and the upper arm is hinged to the movable platform; a lever arm hinged to the upper arm and to a second end of the cylinder, wherein said lever arm comprises a protruding end for supporting the upper arm in a portion of the movement of said scissors comprising its closed position, by linearly sliding over a surface solidary to the base.
  • a platform preferably a cargo platform, is further described which comprises the scissors device described in any of the foregoing embodiments.
  • An elevator preferably a cargo elevator, comprising the above platform is further described.
  • a mechanism comprising the scissors device described in any of the foregoing embodiments is further described.
  • the present disclosure relates to a leveraged tilting scissors system consisting of one or more levers ( 1 ), upper arms ( 2 ), lower arms ( 3 ), a cylinder ( 4 ) and a lever base/leveraged base ( 7 ), with a range of various capacities designed to equip the most varied cargo cases, or platforms existing on the market, among other mechanisms.
  • the three critical points of the current tilting scissors are the start-up ( figure 1 ), end of tilting movement ( figure 3 ) and stop (end of cycle) ( figure 1 ).
  • the tilting scissors system is at a very closed angle, in particular an angle of 5-10°.
  • abrupt mechanical stops occur which are reflected in the form of stresses either in the structure of the tilting scissors system and movable case/platform, or in the hydraulic/pneumatic/electric system, such as stress concentration, deformations, breakages, very high pressures, pressure peaks, pressure surges, counter-pressures, etc. These are currently circumvented with external limit switches.
  • the leveraged tilting system described herein incorporates in its operation the damping at start-up ( figure 1/2 ) and at the stop of the movable case/platform (end of cycle) ( figure 1/2 ).
  • the damping at start-up is achieved by the actuation of the lever arm and the sliding base.
  • Another feature of the present disclosure is the design of the leveraged scissors structure enabling it to be more compact in height ( Figure 4/5 ). This design is possible because the device is actuated by the lever arm and the sliding base.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Forklifts And Lifting Vehicles (AREA)
EP18166392.3A 2017-04-07 2018-04-09 Gehebeltes kipp- oder hubscherensystem, verfahren zum betrieb und verwendungen davon Active EP3385212B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PT11001817 2017-04-07
PT11023417 2017-08-03

Publications (2)

Publication Number Publication Date
EP3385212A1 true EP3385212A1 (de) 2018-10-10
EP3385212B1 EP3385212B1 (de) 2021-08-18

Family

ID=62492379

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18166392.3A Active EP3385212B1 (de) 2017-04-07 2018-04-09 Gehebeltes kipp- oder hubscherensystem, verfahren zum betrieb und verwendungen davon

Country Status (2)

Country Link
EP (1) EP3385212B1 (de)
PT (1) PT3385212T (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113816296A (zh) * 2021-11-09 2021-12-21 株洲铭山科技股份有限公司 一种机车检测用抬升装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990004565A1 (en) * 1988-10-25 1990-05-03 Sehlstedt Per Olof Device for initiating a lifting movement in a lifting device
DE9205900U1 (de) * 1992-05-07 1992-10-01 Otto Nussbaum Gmbh & Co Kg, 7640 Kehl, De
DE29920934U1 (de) * 1999-11-29 2000-02-24 Maha Gmbh & Co Kg Scheren-Hebebühne
WO2001027499A1 (en) * 1999-10-12 2001-04-19 Snap-On Technologies, Inc. Low-level lift
US20070235266A1 (en) * 2006-03-07 2007-10-11 Roy Dantas Low profile lift

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990004565A1 (en) * 1988-10-25 1990-05-03 Sehlstedt Per Olof Device for initiating a lifting movement in a lifting device
DE9205900U1 (de) * 1992-05-07 1992-10-01 Otto Nussbaum Gmbh & Co Kg, 7640 Kehl, De
WO2001027499A1 (en) * 1999-10-12 2001-04-19 Snap-On Technologies, Inc. Low-level lift
DE29920934U1 (de) * 1999-11-29 2000-02-24 Maha Gmbh & Co Kg Scheren-Hebebühne
US20070235266A1 (en) * 2006-03-07 2007-10-11 Roy Dantas Low profile lift

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113816296A (zh) * 2021-11-09 2021-12-21 株洲铭山科技股份有限公司 一种机车检测用抬升装置

Also Published As

Publication number Publication date
PT3385212T (pt) 2021-11-25
EP3385212B1 (de) 2021-08-18

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