WO2014096293A1 - Table élévatrice à ciseaux - Google Patents

Table élévatrice à ciseaux Download PDF

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Publication number
WO2014096293A1
WO2014096293A1 PCT/EP2013/077550 EP2013077550W WO2014096293A1 WO 2014096293 A1 WO2014096293 A1 WO 2014096293A1 EP 2013077550 W EP2013077550 W EP 2013077550W WO 2014096293 A1 WO2014096293 A1 WO 2014096293A1
Authority
WO
WIPO (PCT)
Prior art keywords
scissor
platform
roller
tension element
scissor lift
Prior art date
Application number
PCT/EP2013/077550
Other languages
German (de)
English (en)
Inventor
Ernst Langewellpott
Original Assignee
Albrecht, Elena
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 Albrecht, Elena filed Critical Albrecht, Elena
Priority to EP13820765.9A priority Critical patent/EP2935086A1/fr
Publication of WO2014096293A1 publication Critical patent/WO2014096293A1/fr

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
    • B66F7/065—Scissor linkages, i.e. X-configuration

Definitions

  • the present invention relates to a scissor lift with a platform and a carrier, which hinged to at least one pair of scissors with two on a scissors axis
  • the scissor lift preferably has a flat construction and has a belt drive that allows movement of the platform from the carrier from the approximated position to a more spaced position with reasonable force, in particular, moving the platform from the carrier from a lower position the carrier and the platform are in an approximate position, to an upper position in which they are spaced from each other, with smaller differences in the force required for the lower portion of the travel, in which the scissor members are pivoted at a small angle to each other, to the upper portion the travel path, in which the scissor members are pivoted at a larger angle to the platform and / or the carrier.
  • the scissor lift allows the method from an approximate position of the platform and support, in which the scissor members are pivoted at a small angle to each other, for example, from an approximately parallel pivot position of 0 ° to 10 ° of the scissor members, preferably also to an approximately parallel position of 0 ° to 10 ° of the scissor members to the platform and / or the carrier.
  • the scissor lift has the advantage that the drive can consist of a belt drive of a belt or at least two parallel belt. Instead of a belt, a rope, in particular a steel cable, or a chain can form the tension element.
  • the scissor lift table has a drive with a pulling element, which loads a scissor link against the other scissor link and which is guided in a U-shaped section, and with a dipping roller, which is at a distance from the platform and / or from the carrier on the platform or is mounted on the carrier, which is loaded in a position in which the platform is approximated to the carrier against the U-shaped portion.
  • the tension element can have a course other than U-shaped, in particular a straight course.
  • DE 21 35 700 shows a scissor lift, the underlying scissor arms are guided only in movable bearings, so that the table can move along the floating bearing.
  • the scissors can by loading a rod, which is mounted on a scissors axis, from the be raised in the lower position.
  • the rod is loaded by a rope in the direction of the scissors axis, which additionally loads the mutually displaceable lower ends of the scissor arms against each other.
  • the one end of the rod is pivotally mounted only on a scissors axis and the other end is supported on the U-shaped running rope.
  • the bar acts only on the lever of the scissor arms on the table.
  • the object of the invention is to provide an alternative scissor lift, which preferably allows a method of the platform from the lowest position without high expenditure of force.
  • the scissor lift on a structure that is not faster when shutting down and slow startup from the low position without special mechanical effort allowed.
  • the alternative scissor lift is not faster when shutting down and slow startup from the low position without special mechanical effort allowed.
  • the drive has at least one tension element or consists of at least one tension element whose first end is fixed to a fixing point and the opposite second end is in engagement with a winding roll and opposite the first end can be shortened or extended, wherein the winding roll is in particular driven by a motor, preferably with a self-locking drive or gear.
  • the tension element which is a chain, a steel cable and preferably a belt, loads between its first and second end a scissor member against the other scissor member, preferably the tension member loads a scissor member approximately parallel to the carrier and / or the platform.
  • the tension member generally preferably loads a leg of a scissor member which extends between its non-locating bearing and the scissors axis, e.g. the leg of a scissor member which extends between the floating bearing, which is arranged on the carrier and the scissors axis.
  • the scissor lift on two parallel guided tension elements More preferably, the fixing points of two parallel tension elements are arranged on a yoke, the is fixed with a between the fixing points, preferably centrally between the fixing points arranged pivot bearing, in particular on the platform, on the carrier or on a beam which is connected to two parallel sections or legs of two scissor members.
  • the pivot bearing is movable at least about a first pivot axis perpendicular to the plane in which the tension elements extend adjacent to the fixing points, preferably additionally around a second pivot axis which is perpendicular to the first pivot axis and perpendicular to the tension elements.
  • two fixed to a yoke tension elements, pivot bearings of the yoke and arranged at the second end of the tension elements winding rollers are arranged symmetrically to the longitudinal center plane of the scissor lift.
  • the winding rollers are preferably arranged on a common shaft.
  • the tension element or each of two parallel tension elements, is guided between its first and second end in a U-shaped section and an immersion roller which is mounted at a distance from the platform and / or from the carrier to the platform or to the carrier is loaded against the U-shaped portion at least in a position in which the platform is approximated to the carrier.
  • the U-shaped section of the tension member is formed by passing the tension member over two spaced guide members, e.g. two spaced deflection rollers are, between which or in their distance the dipping roller is guided, in particular during movement of the platform against the carrier in the lower position.
  • the first end of the tension member may be fixed to a scissor member, alternatively, the first end of the tension member may be fixed to the carrier or to the platform, wherein the tension member is guided around a scissor member mounted on a first deflection roller.
  • the tension element is loaded by the first deflection roller against the scissor member.
  • the distance between the guide elements is generally dimensioned such that the dipping roller can move between them and forms its U-shaped section when loaded against the tension element.
  • the tension element in a U-shaped section loads the dipping roller and scissor links only in one leg between their non-locating bearing and the scissors axis.
  • the U-shaped section of the tension element or the guide elements arranged at a distance can be formed by fixing the tension element at a fixing point and by a distance from the fixation point Guide roller is guided.
  • the fixing point which forms the first end of the tension element, replace one of the spaced deflection rollers over which the tension element is guided.
  • the dipping roller forms in the region in which it is arranged against the tension element and the tension element against the spaced deflection rollers or against the deflection roller and at a distance
  • Deflection rollers or a fixing point and a spaced-apart guide roller over which the tension element is guided, are connected to the carrier, the dipping roller is mounted on the platform and preferably the tension element against a leg of a
  • Scissor member loaded which is between the scissors axis and one on the carrier
  • the winding roller with drive motor is preferably connected to the carrier, and preferably arranged between the carrier and the platform.
  • the arranged at a distance pulleys or a fixing point and a spaced guide roller over which the tension element is guided to form the U-shaped portion may be arranged at a distance from the carrier.
  • the dipping roll form the U-shaped section maximally to adjacent to the carrier. Accordingly, the minimum distance in the lower position of the platform and the carrier by the distance of the pulleys and the
  • the distance between the deflection rollers or the distance of the fixing point and the deflection roller to the carrier and the distance of the dipping roller from the platform is a maximum of 30%, not more than 20% or at most 5 to 10% of the distance of the platform from the carrier in the upper position ,
  • Tension element is guided to form its U-shaped portion, arranged approximately in the plane of the carrier and on the side opposite the platform of the carrier is formed a recess into which the dipping roller can be moved and in which
  • Diving roll can form the U-shaped section.
  • a recess may be bounded by a housing adjacent to the carrier, for example a pipe section.
  • the dipping roller is preferably arranged on the center line of the U-shaped section of the tension element, or a center line running centrally between the guide elements (9), so that they are approximately centered when the platform is moved towards the carrier when the scissor elements pivot into the lower position is guided between the spaced guide rollers or between a fixing point and a spaced-apart guide roller.
  • this center line is perpendicular to the platform.
  • the deflection roller is mounted on a support element arranged along this center line, which space separates the deflection roller from the platform. More preferably, this center line passes through a fixed bearing of a scissor member, preferably through the fixed bearing of both scissor members.
  • the U-shaped portion of the tension member is at a fixed bearing of a
  • Scissor member e.g. by two pulleys or a fixing point and a guide roller are arranged at the same distance from a connecting line between the fixed bearings of two hinged together scissor members.
  • the winding roll can be arranged between the U-shaped section of the tension element and the region in which the tension element loads the scissor link. Then it is preferred that the tension element is deflected by at least one guide roller, which is arranged on the side opposite the immersion roller of the formed U-shaped section or on the side of the U-shaped section opposite the immersion roller, e.g. from the U-shaped section to the winding roll.
  • the dipping roller is mounted on the carrier and preferably, the tension member is loaded against a leg of a scissor member extending between the scissors axis and a platform located on the platform or floating bearing of the scissor member.
  • the U-shaped section of the tension element can be arranged along the tension element between the first deflection roller or the fixing point and the winding roller, or the first deflection roller can be arranged along the tension element between the U-shaped section of the tension element
  • Tension element and the winding roll can be arranged.
  • the dipping roller is mounted on the platform, it is arranged at a distance from the plane in which the surface of the platform facing away from the carrier extends.
  • the dipping roller can be mounted at a distance from the platform by means of a support element, eg a rod.
  • the support element preferably extends perpendicular to the platform.
  • the support element may be fixed in the region of the arranged on the platform fixed bearing of a scissor member, for example on the platform or on the fixed bearing itself, especially if the platform is reinforced at the fixed bearing.
  • the tension element can be loaded against the scissor member in that the tension element is guided against a deflection roller mounted on an expansion lever or on one Fixation point on one
  • Spreading lever is set. Such a spreading lever is e.g. on a leg of a
  • Scherenglieds which extends between the scissor shaft and the loose end or movable bearing mounted in a pivot bearing and guided with a movable bearing against the spaced leg of another scissor member which extends between the scissors axis and the loose end or floating bearing.
  • two parallel tension elements are preferred, whose fixing points are fixed to a yoke, which is movable about a symmetrically arranged between the scissor members pivot axis.
  • the tension element when it is guided around a deflection roller which is mounted directly or by means of a pivot lever on a scissor member, be fixed in a fixing point on a leg of the other scissor member which extends between the fixed bearing and the scissors axis.
  • the second end of the tension member may thereby engage the winding roll to be fixed to the winding roll.
  • the second end of the tension member may engage the winding roll by supporting the second end of the tension member on a roller about which a second tension member is guided having one end fixed and the other end secured to the winding roll.
  • the second tension element forms a pulley or a reduction for the movement of
  • Tension element which forms the U-shaped section.
  • the second pulling element may independently be a chain, a steel cable or preferably a belt.
  • a belt is preferably a flat belt having longitudinally extending steel cables within a rubber body.
  • the scissor lift table permits a jerk-free, preferably substantially uniform, movement of the platform relative to the carrier, even in the section of the travel path in which the dipping roller leaves or is moved into the U-shaped section.
  • a jerk-free method is e.g. also possible via the travel path in which the dipping roller touches the tension element or moves away from it and the
  • Pulling element comes from its stretched over the guide elements position or in a stretched over the guide elements position.
  • the U-shaped area allows one
  • the force required in the lower portion of the travel for the process is about as large, e.g. at most twice as large, preferably by 50% or less, greater than the force required in the upper portion of the travel for travel, each preferably for the same travel of the platform relative to the carrier.
  • the winding roll is driven by a frequency-controlled electric motor.
  • An advantage of the lift table according to the invention is that in the lower travel the load exerted by the U-shaped tension element on the dive roller load is converted directly into stroke of the platform, especially in contrast to such lifting tables, where the lifting force acts only on the lever of the scissors. Therefore, in the lifting table according to the invention for the method from the lower position no overcoming an unfavorable
  • Dive roll on shutdown has a braking effect, which causes a much slower shutdown in the lower position with the same resistance by the engine.
  • FIG. 1 shows an embodiment of the scissor lifting table with fixation of the tension element on a scissor link
  • FIG. 3 shows a further embodiment with load of the tension element against
  • FIG. 4 shows an embodiment with loading of the tension element against a scissor element by means of a first deflection roller
  • FIG. 5 shows an embodiment in the upper position
  • FIG. 6 shows an embodiment of the scissor lifting table with a deflection roller and a fixing point as a guide element
  • Figure 7 shows an embodiment of the scissor lift with two parallel
  • Figure 8 is a plan view of an embodiment of the scissor lift
  • Scissor lift with two parallel tension elements below the platform and in Figure 9 is a view of a further embodiment.
  • FIG. 1 shows, for a scissor lift table in the lower position, the arrangement of two deflecting rollers arranged at a distance as guide elements 9, over which the tension element 6 is guided and between which the U-shaped section is formed by the loading of the dipping roller 10.
  • the dipping roller 10 is supported by a rod 15 at a distance from the platform 2.
  • the tension element 6 is arranged with its first end at a fixing point 7 on the leg of a scissor member, which extends between the scissors axis 3 and its movable bearing 5.
  • the U-shaped area between the winding roll 8 and the area is arranged in which the tension element 6 is loaded against the scissor member.
  • the braking effect of the U-shaped tension member when lowering the platform 2 against the carrier 1 is that the load of the dipping roller 10 against the tension member 6 a much slower movement causes, as it takes place at an otherwise same lifting table without the arrangement with dipping roller 10 and U-shaped guide of the tension element 6, wherein the tension element engages only at the end of a scissor member at the Losende.
  • FIG. 2 shows, on a scissor lift table in the upper position, that the U-shaped section is stretched when the dipping roller 10 is spaced from the section of the tension element 6 which is guided over the guide elements 9.
  • FIG. 2 shows an expansion lever 11, which has a deflection roller 16 around which the tension element 6 is guided.
  • the expansion lever 11 is connected to a fixed bearing 12 on the upper leg of the scissor member between the scissors axis 3 and the upper, on the platform. 2
  • Moving bearing 13 which is arranged along the lower leg of the other scissor member between the scissors axis 3 and the lower, arranged on the carrier 1 floating bearing 5 movable.
  • a rotation of the winding roller 8 shortens or lengthens the tension element 6 between the winding roller 8 and fixing point 7, so that from the pivoting of the
  • the fixing point 7 of the tension element 6 is arranged here as an alternative to the arrangement on the carrier on a leg of the other scissor member, which is between the fixed bearing 4 and the
  • Scissor shaft 3 extends.
  • Figure 3 shows according to Figure 2 a scissor lift with a spreading lever 11, the fixed bearing 12 is attached to the lower leg of a scissor member between the scissor shaft 3 and the lower, arranged on the support 1 floating bearing 5, while the movable bearing 13 of the expansion lever 11 against the upper leg a scissor member between the upper, arranged on the platform 2 floating bearing 5 and the scissor shaft 3 is movably arranged.
  • This arrangement of fixed bearing 12 and floating bearing 13 of the expansion lever 11 is preferred.
  • the first deflection roller 17 is, as in the embodiment of Figure 2, preferably closer to the floating bearing 13 of the expansion lever 11 is arranged as at the fixed bearing 12.
  • FIG. 4 shows an embodiment in which the winding roller 8 lies between the deflection rollers, which delimit the U-shaped section of the tension element 6 as guide elements 9, and the region in which the tension element 6 loads a scissor member.
  • two first guide rollers 17 are provided, which are arranged opposite the platform at a distance from the spaced deflection rollers, which form the guide elements 9, over which the tension element 6 is guided in order to form its U-shaped section.
  • FIG. 5 shows a recess 14 below the carrier 1 into which the U-shaped section can be formed by the dipping roller 10.
  • FIG. 6 shows a scissor lift table with a deflection roller and a fixing point 7 as guide elements 9, over which the tension element 6 is guided and between which the U-shaped section is formed by the loading of the dipping roller 10. Furthermore, FIG. 6 generally shows the possibility of arranging the motor-driven winding roll 8 at a distance from the support 1 with respect to the platform 2, e.g. Generally, the winding roll 8 and its drive are preferably arranged in a plane which lies between the carrier 1 and the platform 2, optionally below or offset from the platform 2 or outside the circumference of the carrier 1 and / or platform 2.
  • FIG. 7 shows the arrangement of the U-shaped section, whose guide elements 9 are two deflection rollers, along the tension element 6 between the fixing point and a first deflection roller 17, which deflects the tension element to the winding roller 8.
  • the first guide roller 17 loads the tension member 6 against the portion or leg of the scissor member, which extends between the scissor shaft 3 and its movable bearing 5.
  • the scissor lift on two parallel tension elements 6, whose
  • the yoke 18, e.g. is a beam has a bearing with a first pivot axis 19 to which it is perpendicular to the plane in which the tension members 6 extend, preferably in addition to a second pivot axis 20, which is perpendicular to the first pivot axis 19 and perpendicular to the tension elements 6 is arranged.
  • FIG. 8 shows, in plan view of the tension elements 6, that the yoke 18 can be mounted on the carrier 1, preferably with the first pivot axis 19 and the second pivot axis 20.
  • the two parallel tension elements 6 are arranged symmetrically to the longitudinal center plane 21 which lies between the scissor members.
  • Figure 9 shows the example of an embodiment in which the first end of the tension member 6 is connected to the fixing point 7 with the carrier 1 and the tension member via a first guide roller 17 on the lower leg of a scissor member between the lower, the carrier 1 arranged floating bearing 5 and the Scissor axis 3 is guided, that the second end of the tension member 6 can thereby be in engagement with the winding roller 6, that at the second end of the tension member, a roller 23 is mounted, around which a second tension member 22 runs.
  • the second tension member 22 has a fixed end 24, e.g. is connected to the carrier 1, in particular the bearing housing of the winding roll 8, and whose other end is fixed to the winding roll 8. In this case, the lower leg of the leg 1 adjacent to the carrier and the upper leg of the platform 2 adjacent leg.

Abstract

L'invention concerne une table élévatrice à ciseaux dont l'entraînement présente un élément de traction (6) qui sollicite un élément de ciseaux contre l'autre élément de ciseaux et qui est guidé dans une partie en forme de U, comprenant un rouleau plongeur (10) qui est monté sur la plate-forme (2) ou le support (1) à une distance de la plate-forme (2) et/ou du support (1) et qui, dans une position dans laquelle la plate-forme (2) est approchée du support (1), est sollicité contre la partie en forme de U.
PCT/EP2013/077550 2012-12-19 2013-12-19 Table élévatrice à ciseaux WO2014096293A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13820765.9A EP2935086A1 (fr) 2012-12-19 2013-12-19 Table élévatrice à ciseaux

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012223869.7A DE102012223869A1 (de) 2012-12-19 2012-12-19 Scherenhubtisch flacher Bauweise
DE102012223869.7 2012-12-19

Publications (1)

Publication Number Publication Date
WO2014096293A1 true WO2014096293A1 (fr) 2014-06-26

Family

ID=49955299

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2013/077550 WO2014096293A1 (fr) 2012-12-19 2013-12-19 Table élévatrice à ciseaux

Country Status (3)

Country Link
EP (1) EP2935086A1 (fr)
DE (1) DE102012223869A1 (fr)
WO (1) WO2014096293A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105967098A (zh) * 2016-07-05 2016-09-28 宿州市航宇塑胶贸易有限公司 一种气动升降装置
CN115321447B (zh) * 2022-10-11 2023-04-07 南通至顺聚氨酯材料有限公司 一种用于维修作业的升降平台

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2153700A1 (de) * 1971-10-28 1973-05-03 Licentia Gmbh Ausfahrantrieb fuer eine von nuernberger scheren getragene plattform
DE2635197A1 (de) * 1976-08-05 1978-02-09 Trepel Ag Scherenhebetisch
DE10314967A1 (de) * 2003-04-02 2004-10-28 Flexlift-Hubgeräte GmbH Scherenhubtisch
EP1726560A1 (fr) * 2005-05-27 2006-11-29 Gottfried Reymann Table élévatrice à ciseaux
DE102005039945A1 (de) * 2005-08-24 2007-03-01 EISENMANN Fördertechnik GmbH & Co. KG Scherenhubtisch
DE102010042011A1 (de) * 2010-10-05 2012-04-05 Elena Albrecht Scherenhubtisch

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE920390C (de) * 1940-09-04 1956-01-12 Wilhelm Dr-Ing Ludowici Scherenhubvorrichtung
EP0017914B1 (fr) * 1979-04-12 1982-12-29 Lupo, Marianne Dispositif de levage pour installation dans un meuble pour téléviseur ou similaire

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2153700A1 (de) * 1971-10-28 1973-05-03 Licentia Gmbh Ausfahrantrieb fuer eine von nuernberger scheren getragene plattform
DE2635197A1 (de) * 1976-08-05 1978-02-09 Trepel Ag Scherenhebetisch
DE10314967A1 (de) * 2003-04-02 2004-10-28 Flexlift-Hubgeräte GmbH Scherenhubtisch
EP1726560A1 (fr) * 2005-05-27 2006-11-29 Gottfried Reymann Table élévatrice à ciseaux
DE102005039945A1 (de) * 2005-08-24 2007-03-01 EISENMANN Fördertechnik GmbH & Co. KG Scherenhubtisch
DE102010042011A1 (de) * 2010-10-05 2012-04-05 Elena Albrecht Scherenhubtisch

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2935086A1 *

Also Published As

Publication number Publication date
DE102012223869A1 (de) 2014-06-26
EP2935086A1 (fr) 2015-10-28

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