EP1181467B1 - Table elevatrice a compas - Google Patents

Table elevatrice a compas Download PDF

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Publication number
EP1181467B1
EP1181467B1 EP00920582A EP00920582A EP1181467B1 EP 1181467 B1 EP1181467 B1 EP 1181467B1 EP 00920582 A EP00920582 A EP 00920582A EP 00920582 A EP00920582 A EP 00920582A EP 1181467 B1 EP1181467 B1 EP 1181467B1
Authority
EP
European Patent Office
Prior art keywords
scissor
lifting
drive shaft
lift table
table according
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
EP00920582A
Other languages
German (de)
English (en)
Other versions
EP1181467B2 (fr
EP1181467A1 (fr
Inventor
Gerold Heckert
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.)
HECKERT, GEROLD
Original Assignee
Heckert GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7907534&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1181467(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Heckert GmbH filed Critical Heckert GmbH
Publication of EP1181467A1 publication Critical patent/EP1181467A1/fr
Publication of EP1181467B1 publication Critical patent/EP1181467B1/fr
Application granted granted Critical
Publication of EP1181467B2 publication Critical patent/EP1181467B2/fr
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
    • B66F7/065—Scissor linkages, i.e. X-configuration

Definitions

  • the invention relates to a scissor lift table with one between Carrying device and a base unit arranged scissors, which about a scissors axis inner leg and outer leg pivotable relative to each other has, and with a lifting device which by means of a drive for Has opening and closing of the scissors reciprocating lift truck, with the drive a drive shaft directed parallel to the scissors axis is coupled with the at least one placed around this and to the pallet truck coupled traction means is movable in both directions.
  • a lifting table of this type for example for lifting and lowering loads used in automobile manufacture is in US-A 3,785,462 specified.
  • a lower one is used on both sides Shaft a traction device attached to one end.
  • the traction device is around several other pulleys, including also one between the scissor legs back and forth movable roller-shaped lifting element looped and fixed with its other end to the upper part of the lifting table.
  • DE 33 31 872 A proposes a roller-shaped lifting element that attached to one end of two chains on both sides by means of a piston-cylinder unit, that attacks at the other ends of the two chains, between to move the scissor legs back and forth to raise and lower the top.
  • the invention has for its object a scissor lift table at the beginning to provide the type with which the lifting movement without risk of a Contamination is controlled and can be carried out reliably.
  • Hiemach is provided that the traction means is at least one band-shaped toothed belt and that the drive shaft on its peripheral surface at least in some areas one interacting with the toothing of the at least one toothed belt Serration bears.
  • a favorable structure for a reliable function is that the Drive shaft is mounted fixed on the base unit and that at least one Deflecting element, or the one at a fixed distance from the drive shaft, is / are rotatably mounted parallel to this axis of rotation for deflection the traction means is provided.
  • the reliability of the drive device further contribute to the fact that several, e.g. three or four timing belts and a number corresponding to their number Number of deflection elements are provided.
  • the measures for placing and moving the pallet truck are favorable, that the timing belt (s) forms an upper run and a lower run and that the pallet truck is coupled to the upper run.
  • the toothed belt has two Has ends, both of which are fixed to the pallet truck, at least a fastening point a tensioning device for tensioning the respective Has timing belt.
  • the timing belt tension could also be used by adjusting the corresponding deflection elements.
  • the drive has a gear section with a stub shaft, into which an adapted end section of the drive shaft is inserted.
  • a structure that is favorable for the function is that two parallel ones Inner leg and two parallel outer legs on both sides of the base unit and the carrying device are mounted and that the pallet truck is rolling or sliding is supported on the inner thighs, while at least one Outer legs for opening and closing the scissors for the lifting movement e.g. interchangeable stroke curve is provided over which the stroke movement is determinable.
  • the drive shaft in the area of a base-side pivot axis the inner leg is arranged while the axis of rotation of the deflecting elements in the area of the inner legs on the opposite side from the drive shaft Side of the scissors axis is arranged, so the pallet truck securely on the inner legs to carry out the lifting movement into the end positions guided.
  • the measures are still favorable that the pallet truck for support on the inner legs two pairs of in the direction of travel offset roles and to interact with the stroke curves Has pair of lifting rollers.
  • An alternative construction of the scissor lift table is e.g. in that the Pallet truck is slidably mounted on the base unit and a pair of both Lateral curves in the direction of movement carries with a Interacting pair of lifting rollers rolling on it, which on two opposite Legs of the scissors or the scissors axis are fixed in place are.
  • Fig. 1 is a scissor lift table 20 in part as an embodiment sectional side view shown from the inside, being between a frame-shaped base unit 17 which can be anchored to the floor and a carrying device 14, for example a platform for accommodating car bodies, a pair of scissors 11 with two inner legs 12 and two outer legs 13 and a scissor axis 16 is arranged.
  • two such scissors 11 are parallel Inner legs 12 and outer legs 13 on both sides of the base unit 17 and the support device 14 pivotable and with one leg end slidably mounted.
  • a drive 1 in the form of an electric motor, which is equipped with a brake 1.2 is coupled and is fixed with a torque arm 2 against rotation.
  • a drive shaft 3 used, which is partially provided with teeth on its outside.
  • the drive shaft 3 is in the region of the lower pivot axis of the inner leg 12 of the scissors 11 on longitudinal struts or cross-struts or separate Carrier elements of the base unit 17 rotatably fixed in rotary bearings 15.
  • toothed belt wheels 5 In the area of the teeth, four are slightly apart from one another around the drive shaft 3 spaced band-shaped toothed belt 4 with on the toothing of the drive shaft 3 matched counter gears and on the other hand by respective Deflection elements in the form of toothed belt wheels 5 performed on a seen from the drive shaft 3 opposite side of the scissors axis 16, are arranged on the inner legs 12 arranged axis of rotation.
  • the Drive shaft 3, the scissors axis 16 and the axis of rotation of the deflecting elements 5 run parallel to each other.
  • the toothed belt wheels 5 have each side flanges, so that an upper run and a lower run forming toothed belt 4 are reliably performed.
  • the toothed belt wheels 5 can be formed on a common shaft or axis and if desired also be provided with teeth.
  • a lifting carriage 6 is arranged on the upper side of the upper run of the toothed belt 4, which is fixed at clamping points 8 with clamping means on the four toothed belts 4 is.
  • To tension the respective toothed belts 4 are at least one Side the clamping points 8 with clamping means 8 adjustable in the direction of rotation Mistake.
  • the two ends of the toothed belts 4 are at the clamping points 8 clamped.
  • the pallet truck 6 is with support rollers 7 either on the top Edge of the inner leg 12 or on the side of the inner leg 12 attached, preferably replaceable rails supported, wherein two pairs of laterally opposite support rollers 7 are provided, which in Direction are spaced.
  • the pallet truck 6 has a pair of them laterally opposite lifting rollers 9, the under on the two Outer legs 13 in their upper leg section with respect to the scissors axis 16 arranged lifting curves 10 during a movement of the lifting car 6 unroll.
  • the stroke curve 10 can be a desired one temporal course of the lifting movement can be designed so that, for example The lifting movement starts slowly, is accelerated and then slowly runs down again.
  • the stroke curve can also be shaped at its ends so that towards the end of the movement of the lifting truck 6, no further lifting movement so that an exact final height of the carrying device 14, e.g. in the range of one Transfer station to a transverse conveyor belt is clearly reached.
  • the lifting truck 6 with the drive 1 is moved over the drive shaft 3 and the toothed belt 4 in the desired direction and up to move to the desired position.
  • the position can be set using Position detectors are monitored or controlled. With the brake 1.2 an unintentional downward stroke is safely avoided. If a toothed belt 4 tear, so the lifting operation with the remaining timing belts 4 can continue for the time being be led until there is an appropriate opportunity to renew the damaged timing belt 4 results.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Handcart (AREA)
  • Types And Forms Of Lifts (AREA)
  • High-Pressure Fuel Injection Pump Control (AREA)
  • Gears, Cams (AREA)
  • Transmission Devices (AREA)

Claims (11)

  1. Table élévatrice à ciseaux, avec des ciseaux (11) disposés entre un dispositif porteur (14) et une unité de base (17) qui présentent une branche intérieure (12) et une branche extérieure (13) pivotant l'une par rapport à l'autre autour d'un axe de ciseaux (16) et avec un dispositif de levage qui présente un chariot élévateur (6) mobile en va-et-vient au moyen d'un entraínement (1) pour ouvrir et fermer les ciseaux (11), un arbre moteur (3) dirigé parallèlement à l'axe de ciseaux (16) étant accouplé à l'entraínement (1), par lequel au moins un organe de traction (4) monté autour de celui-ci et accouplé au chariot élévateur (6) est mobile dans les deux directions de rotation,
    caractérisée en ce que l'organe de traction est au moins une courroie crantée (4) en forme de bande et que l'arbre moteur (3) porte sur sa surface périphérique, au moins par zones, une denture coopérant avec la denture de la au moins une courroie crantée (4).
  2. Table élévatrice à ciseaux selon la revendication 1,
    caractérisée en ce que l'arbre moteur (3) est monté fixe en position sur l'unité de base (17) et qu'au moins un élément de renvoi (5), qui est/sont monté(s) à rotation sur un axe de rotation monté à distance fixe de l'arbre moteur (3), parallèlement à celui-ci, est/sont prévu(s) pour le changement de direction de la courroie crantée (4).
  3. Table élévatrice à ciseaux selon la revendication 1 ou 2,
    caractérisée en ce que plusieurs courroies crantées (4) ainsi qu'un nombre d'éléments de renvoi (5) correspondant à leur nombre sont prévus.
  4. Table élévatrice à ciseaux selon l'une des revendications précédentes,
    caractérisée en ce qu'au moins une courroie crantée (4) forme un brin supérieur et un brin inférieur et
    que le chariot élévateur (6) est accouplé au brin supérieur.
  5. Table élévatrice à ciseaux selon la revendication 4,
    caractérisée en ce que la courroie crantée (4) présente deux extrémités qui sont toutes deux fixées au chariot élévateur (6), au moins un emplacement de fixation (7, 8) présentant un dispositif de tension.
  6. Table élévatrice à ciseaux selon l'une des revendications précédentes,
    caractérisée en ce que l'entraínement (1) présente une section d'engrenage avec un moignon d'arbre creux dans lequel est enfoncée une section d'extrémité adaptée de l'arbre moteur.
  7. Table élévatrice à ciseaux selon l'une des revendications précédentes,
    caractérisée en ce que l'entraínement (1) est fixé latéralement à l'extérieur de l'unité de base (17) sur celle-ci et est muni d'un frein (1.2) et d'un support de couples de rotation (2).
  8. Table élévatrice à ciseaux selon l'une des revendications précédentes,
    caractérisée en ce que deux branches intérieures (12) parallèles et deux branches extérieures (13) parallèles sont montées des deux côtés sur l'unité de base (17) et le dispositif porteur (14) et
    que le chariot élévateur (6) est en appui à roulement ou à glissement sur les branches intérieures (12), tandis qu'une came de levage (10), par laquelle le déplacement de levée peut être déterminé, est prévue sur au moins une branche extérieure (13) pour ouvrir et fermer les ciseaux (11) pour le déplacement de levée.
  9. Table élévatrice à ciseaux selon l'une des revendications précédentes,
    caractérisée en ce que l'arbre moteur (3) et disposé dans la zone d'un axe de pivotement du côté base de la branche intérieure (12), tandis que l'axe de rotation des éléments de renvoi (5) est disposé dans la zone de la branche intérieure (12) sur le côté de l'axe de ciseaux (16) opposé en partant de l'arbre moteur (3).
  10. Table élévatrice à ciseaux selon l'une des revendications précédentes,
    caractérisée en ce que le chariot élévateur (6) présente deux paires de rouleaux décalés en direction de déplacement pour l'appui sur les branches intérieures (12) et une paire de rouleaux de levage (9) pour coopérer avec les cames de levage (10).
  11. Table élévatrice à ciseaux selon l'une des revendications 1 à 7,
    caractérisée en ce que le chariot élévateur (6) est monté à glissement sur l'unité de base (17) et porte une paire de cames de levage alignées des deux côtés en direction de déplacement, qui coopèrent avec une paire de rouleaux élévateur roulant dessus qui sont montés en position fixe sur deux ailes opposées des ciseaux (11) ou l'axe de ciseaux (16).
EP00920582A 1999-05-08 2000-03-25 Table elevatrice a compas Expired - Lifetime EP1181467B2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19921435A DE19921435A1 (de) 1999-05-08 1999-05-08 Scherenhubtisch
DE19921435 1999-05-08
PCT/EP2000/002657 WO2000068596A1 (fr) 1999-05-08 2000-03-25 Table elevatrice a compas

Publications (3)

Publication Number Publication Date
EP1181467A1 EP1181467A1 (fr) 2002-02-27
EP1181467B1 true EP1181467B1 (fr) 2002-12-04
EP1181467B2 EP1181467B2 (fr) 2007-10-03

Family

ID=7907534

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00920582A Expired - Lifetime EP1181467B2 (fr) 1999-05-08 2000-03-25 Table elevatrice a compas

Country Status (7)

Country Link
US (1) US6705238B1 (fr)
EP (1) EP1181467B2 (fr)
JP (1) JP2002544094A (fr)
AT (1) ATE229139T1 (fr)
DE (3) DE19921435A1 (fr)
ES (1) ES2185587T5 (fr)
WO (1) WO2000068596A1 (fr)

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US7637468B2 (en) * 2008-01-06 2009-12-29 Ming-Hsing Huang Adjustable notebook computer support
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US8714524B2 (en) * 2009-12-16 2014-05-06 Herkules Equipment Corporation Belt-driven transportation system
US8733508B2 (en) 2010-04-02 2014-05-27 Herkules Equipment Corporation Scissor lift assembly
US8308134B2 (en) 2010-04-20 2012-11-13 Stan Design, Inc. Mobile jack with locking assembly
WO2012135078A2 (fr) 2011-03-25 2012-10-04 Boomerang Systems, Inc. Table élévatrice à ciseaux
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DE102011118672A1 (de) * 2011-11-16 2013-05-16 Christoph Mohr Scherenhubtisch
JP3198070U (ja) 2012-05-24 2015-06-18 ヴァリデスク リミテッド ライアビリティ カンパニー 調整自在の卓上作業台
DE202013100340U1 (de) * 2012-07-13 2013-02-08 Rofa Industrial Automation Ag Hubtischsteuerung
US9296596B2 (en) 2012-10-15 2016-03-29 Cameron Lanning Cormack Hybrid wedge jack/scissor lift lifting apparatus and method of operation thereof
US8967057B2 (en) * 2012-11-02 2015-03-03 South Essex Fabricating Inc. Vertically adjustable platform system
US9422142B2 (en) 2013-08-01 2016-08-23 Herkules Equipment Corporation Scissor-type lift assembly
TWI531523B (zh) * 2013-12-06 2016-05-01 金寶電子工業股份有限公司 升降車與其高度顯示機構
DE102014001890B4 (de) * 2014-02-14 2019-08-22 Grammer Ag Vorrichtung zum Abfedern eines Federungsoberteils in wenigstens einer Raumrichtung gegenüber einem relativ dazu bewegbaren Federungsunterteil, Sitz und Fahrzeug mit einer derartigen Vorrichtung
DE102014002210B4 (de) * 2014-02-20 2018-07-19 Grammer Aktiengesellschaft Vorrichtung zum Abfedern eines Federungsoberteils in wenigstens einer Raumrichtung gegenüber einem relativ dazu bewegbaren Federungsunterteil, Sitz und Fahrzeug
CN107614297B (zh) * 2015-05-26 2021-05-07 埃索欧耐迪克超动力 使用磁流变流体离合器装置的动态运动控制系统
US9504316B1 (en) * 2016-04-20 2016-11-29 Henry Streicher Height adjustable desktop assembly
US11019920B2 (en) 2016-09-23 2021-06-01 Varidesk, Llc Electrically-lifted computer desk and office desk thereof
CN206390562U (zh) 2016-09-23 2017-08-11 廖良成 电动升降电脑桌及其办公桌
US9855879B1 (en) 2016-10-05 2018-01-02 Extendquip, Llc Support assembly for mounting an accessory to a work utility vehicle
US11390504B2 (en) * 2018-03-20 2022-07-19 Bastian Solutions, Llc Lift mechanism for robotic shuttle system
CN109380873A (zh) * 2018-10-12 2019-02-26 中国环境管理干部学院 一种思政用可移动演说台
TWI702072B (zh) * 2019-11-29 2020-08-21 昌祐科技國際股份有限公司 用於健身器材之車架揚升機構
DE102020110757B3 (de) * 2020-04-21 2021-09-16 Grammer Aktiengesellschaft Fahrzeugsitz
DE102021209083B4 (de) * 2021-08-18 2023-06-07 Siemens Healthcare Gmbh Patientenlagerungstisch

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DE4011318A1 (de) * 1990-04-07 1991-10-17 Stotz Kraemer Ag Hubtisch zur ueberwindung eines hoehensprungs in foerderstrassen
DE29806243U1 (de) * 1998-04-04 1998-07-02 Förster, Rainer, 09238 Auerswalde Werktisch mit mehreren in ihrer Länge verstellbaren Tischbeinen

Also Published As

Publication number Publication date
ES2185587T3 (es) 2003-05-01
DE29910744U1 (de) 1999-11-04
DE19921435A1 (de) 2000-11-16
ATE229139T1 (de) 2002-12-15
EP1181467B2 (fr) 2007-10-03
WO2000068596A1 (fr) 2000-11-16
US6705238B1 (en) 2004-03-16
ES2185587T5 (es) 2008-03-16
EP1181467A1 (fr) 2002-02-27
JP2002544094A (ja) 2002-12-24
DE50000879D1 (de) 2003-01-16

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