EP0520137A1 - Plateforme de lavage pour composer des scènes de théatre ou analogue - Google Patents

Plateforme de lavage pour composer des scènes de théatre ou analogue Download PDF

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Publication number
EP0520137A1
EP0520137A1 EP92103207A EP92103207A EP0520137A1 EP 0520137 A1 EP0520137 A1 EP 0520137A1 EP 92103207 A EP92103207 A EP 92103207A EP 92103207 A EP92103207 A EP 92103207A EP 0520137 A1 EP0520137 A1 EP 0520137A1
Authority
EP
European Patent Office
Prior art keywords
pedestal
spindle
frame according
scissor
lifting device
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.)
Withdrawn
Application number
EP92103207A
Other languages
German (de)
English (en)
Inventor
Kurt Stascheit
Original Assignee
Eisenberg Hans-Jochen
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 Eisenberg Hans-Jochen filed Critical Eisenberg Hans-Jochen
Publication of EP0520137A1 publication Critical patent/EP0520137A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • B66F7/0608—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement driven by screw or spindle
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H3/00—Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons
    • E04H3/10—Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons for meetings, entertainments, or sports
    • E04H3/22—Theatres; Concert halls; Studios for broadcasting, cinematography, television or similar purposes
    • E04H3/24—Constructional features of stages
    • E04H3/26—Revolving stages; Stages able to be lowered

Definitions

  • the invention relates to a pedestal for the construction of theater stages, grandstands or the like., With a platform carried by lifting scissors and with at least one motor driven, parallel to the platform directed spindle for erecting the lifting scissors, each spindle carries a spindle nut and one of each Each scissor's scissor arm is articulated to a spindle nut.
  • the invention has for its object to provide a generic pedestal that can be folded into a very flat basic position and raised from its basic position with relatively little effort.
  • the invention provides that the motor and the spindle are arranged together on a slide which is guided in the direction of the spindle nut until it hits a stop, that an auxiliary lifting device on the slide and on an ascending part of the pedestal is formed, which translates the horizontal movement of the carriage into a lifting movement of the pedestal, that when the motor is switched on in the flat basic pedestal position, the carriage moves towards the spindle nut acting as an abutment and thereby raises the lifting scissors by an initial path via the auxiliary lifting device and that after When the slide hits the stop, the spindle nut runs towards the slide while the lifting scissors are further raised.
  • the auxiliary lifting device can preferably consist of an inclined ramp and a ramp element, which are arranged on the scissor legs and the slide.
  • the task of the invention can also be solved with a height-adjustable pedestal, in which, in contrast to the pretreated embodiment, the drive motor for the spindle drive is fixedly mounted on the pedestal.
  • a pedestal to provide the object according to the invention is provided that in the middle of the pedestal below the platform is also an auxiliary lifting device that can be driven by the motor-driven spindle drive, that the spindle drive when the motor is switched on in the flat basic pedestal position initially only actuates the auxiliary lifting device , which raises the pedestal by an initial stroke, during which the attack of the spindle drive on the movable scissor leg ends is idle, and that only towards the end of the initial phase the spindle drive acts on the horizontally movable scissor leg ends and further raises the pedestal, during which time the auxiliary -Lifting device runs empty.
  • the pedestal can now be designed with a minimum basic height, so that it fulfills the requirements for a low stacking height, or for a low application height when a hall floor is subsequently occupied. Thanks to the auxiliary lifting device, the pedestal can be safely and reliably raised from its lowest position with little effort and can also be lowered back into its basic position in a controlled manner.
  • the pedestal can be continuously adjusted to any desired height so that it can also be precisely adapted to the adjacent floor areas, for example to an adjacent stair step.
  • the auxiliary lifting device requires only a few inexpensive additional devices, since the basic structure of the generic pedestal remains unchanged.
  • the pedestal consists in its basic structure of a platform 1, a rectangular upper frame 2 supporting the platform 1, a rectangular lower frame 3 and two X-shaped lifting scissors 4, 5.
  • the scissor legs 6, 7 of the lifting scissors 4 and the scissor legs 8, 9 of the Lifting scissors 5 are articulated at one end at vertically superimposed corner points 10, 11 of the upper frame 2 and the lower frame 3, while the other ends 12, 13 can be moved via rollers 14, 15 on slideways 16, 17 of the upper frame or lower frame.
  • a motor 18 with a self-locking gear 19 is arranged on the subframe 3, which drives two spindles 21, 22 via a chain drive 20, which are directed parallel to the longitudinal sides of the subframe 3 and each pass through a spindle nut 23, 24.
  • the spindle nuts 23, 24 are each carried by a carriage 25, 26.
  • Each carriage 25, 26 is supported with an impeller 27 and with one of the rollers 15 on slideways of the lower frame.
  • the articulation axis 28 carrying the rollers 15 passes through both carriages 25, 26 and forms a common articulation axis for the scissor legs 7, 9.
  • the scissor legs 8, 9 - and 6, 7 - are almost parallel to each other, and the scissor joint 29 is located at the same height as the central longitudinal axis of the spindles 21 and 22. In this position, the scissor legs do not yet offer a moment arm on which the spindle drive described could effectively engage.
  • the pedestal is equipped with two auxiliary lifting devices 30, 31.
  • the motor 18 is mounted on a carriage 32 together with its gear 19, the chain drive 20 and the spindles 21, 22.
  • the carriage 32 is supported by four wheels 33, 34, 35, 36 on guide plates 37, 38 of the lower frame 3.
  • the guide plates 37, 38 carry on their inner longitudinal edges guide pieces 39, 40 which are provided with guide grooves 41, 42 in which a base plate 43 of the carriage 32 is guided exactly parallel to the subframe 3.
  • the carriage 32 can be moved in the direction of the spindle nuts 23, 24 until it hits the stops 44, 45.
  • the carriage 32 also carries an overrun roller 46, 47, to which attached ramp ramps 48, 49 are attached to the scissor legs 7 and 9.
  • the ramps 48, 49 are each inclined by an angle a of approximately 30 ° with respect to the longitudinal extent of the scissor legs 7, 9.
  • run-up rollers 46, 47 rest against the upper end of the run-up ramps 48, 49, which fall off to the side of the spindle nuts 23, 24.
  • the run-up ramps 48, 49 are - seen from the spindle nuts 23, 24 - beyond the scissor joint 29.
  • the invention is not restricted to the exemplary embodiment shown.
  • a single central spindle can be provided, the two carriages 25, 26 being combined into one carriage.
  • the motor and the associated auxiliary lifting devices can also be attached to the upper frame instead of the lower frame.
  • the pedestal shown in FIGS. 1 to 4 would be upside down and only the platform would have to be moved from one frame to the other frame.
  • Longer pedestals can also be provided at both ends with one of the pairs of scissors shown with associated lifting devices.
  • Y-shaped scissors can also be used, in which the movable end 13 of the scissor legs 6, 8, which are each not driven directly by the lifting device, can be omitted.
  • the slide and the auxiliary lifting devices are each arranged between the spread scissor leg halves of the Y-scissors.
  • auxiliary lifting devices 51, 52 are arranged on each spindle 21, 22.
  • Each auxiliary lifting device comprises a carriage 53 which can be moved on a running surface of the lower frame 3 and a spindle nut 54 which has a flange as a driver 55 which is rigidly connected to the carriage 53.
  • the auxiliary lifting devices 51, 52 are each designed as spreading devices and have an inclined ramp 56 on their carriage 53, which cooperates with an overrun member 57 designed as a roller, which is in each case attached to the adjacent scissor legs 7 and 9, cf. also the enlarged illustration according to FIG. 8.
  • the auxiliary lifting devices 51, 52 are arranged in the area of the center of the pedestal below the platform 1.
  • an approximately U-shaped transmission member 58 is articulated in plan view, the articulation being carried out on the axles carrying the rollers 15.
  • the transmission member 58 can be moved by means of rollers 59 on the floor or on running surfaces of the lower frame 3.
  • the spindles 21, 22 pass through holes 60 provided with play in the U-back of the transmission member 58 and protrude into the spindle bearings 61, 61 fixed to the frame.
  • a further spindle nut 62 is arranged on each spindle 21, 22, which has a flange-shaped driver 63 at its end facing the bearings 61.
  • the spindle nut 62 can pass through the hole 60 in the transmission member 58 until its driver 63 strikes the back of the transmission member 58.
  • the catch 63 engages the transmission member 58 with a play S.
  • Fig. 7 illustrates the rotation lock of the spindle nut 62, which surrounds a bottom-side slide rail 65 with a fork-shaped projection 64 and is therefore only movable along this slide rail.
  • both spindle nuts 54 and 62 run synchronously to the left, ie towards the fixed corner points 11, 11 of the lifting scissor limbs. Since the spindle nuts 54, 54 immediately carry the carriages 53, 53 rigidly attached to them, the ramps 56, 56 located on the carriages 53, 53 become under the overrun members 57, 57 are pressed, which are increasingly raised to the intermediate height shown in FIG. 10 in accordance with the rise of the ramps 56, 56. During this initial stroke exerted by the auxiliary lifting devices 51, 52, the spindle nuts 62, 62, which initially run empty, reach the operative position shown in FIG. 10, in which their drivers 63, 63 have hit the transmission member 58.
  • the drivers 63, 63 take the transmission member 58 with them and are thus now in operative engagement with the movable lifting leg ends 12, 12, so that the further erection of the pedestal via the spindle nuts 62, 62 or their drivers 63, 63 takes place.
  • the run-up members 57, 57 separate from the run-up ramps 56, 56 and, as shown in FIG. 11, rise with the lifting scissors 4, 5.
  • the auxiliary lifting devices 51, 52 thus run empty in this main lifting phase.
  • the auxiliary lifting devices 51, 52 are supported with the rollers of their carriages 53 on the running surfaces of the lower frame 3, which in this case act as abutment surfaces 66.
  • Fig. 12 illustrates a modification of the above-described embodiment, which consists in that each ramp ramp 56a on the rising scissor legs 9 and 7 and the roller-shaped ramp member 57a on the carriage 53 are arranged.
  • Fig. 13 illustrates a modification, which consists in that the drivers 55 and 63 are attached to the ends of a common carrier 67, which here as a enclosing the spindle 21 and 22 respectively and the transmission member 58 is formed through tube.
  • the tubular support 67 is rigidly connected to a spindle nut 68 arranged in its interior, which moves the drivers 55, 63 when the motor 18 is switched on in the manner described with reference to the exemplary embodiment according to FIGS. 9 to 11.
  • FIGS. 14 to 19 show a schematic illustration of a further exemplary embodiment, in which the only difference from the embodiments according to FIGS. 5 to 13 is that the auxiliary lifting device - instead of a ramp / ramp member-spreading device - has a spreading lever 69 on the scissor joint 29 is permanently articulated and carries a roller 70 at its other end. 14, the roller 70 rests on the abutment surface 66, and the axis of the roller 70 lies lower than the scissor joint 29, so that the spreading lever 69 is inclined towards the driver 55.
  • the driver 55 When the spindle drive is switched on, the driver 55 immediately presses the spreading lever 69 into an increasingly steeper position according to FIGS. 15 and 16 via the roller 70.
  • the second driver 63 initially runs empty. If the second driver 63 has hit the transmission member 58, cf. 16, the second driver 63 takes over the further erection of the pedestal, the spreading lever 69 separating from the first driver 55 and rising with the pedestal.
  • the spreading lever 69 is thereby by a chain 71 attached to the scissor legs 9 in the approximately half-height pedestal position according to FIG Carrier 55 held in an inclined position so that when the pedestal is lowered from the position shown in FIG. 18, the roller 70 is again in a suitable manner to the right of the upper articulation point of the spreading lever 69 on the scissor joint 29 and the spreading lever 69 automatically in the position shown in FIG 1 can return again.
  • FIGS. 20 to 22 show a schematic representation of a further exemplary embodiment, in which - instead of the rod-shaped expansion lever 69 according to the exemplary embodiment according to FIGS. 14 to 19 - an eccentric disk 72 is provided, which in the basic position has a bearing mouth 73 at one end , which loosely receives a bolt 74 arranged coaxially to the scissors joint 29, also compare the enlarged illustration according to FIG. 23, which shows the eccentric disk 72 in an intermediate position which lies between the positions according to FIGS. 20 and 21.
  • the eccentric disc 72 is permanently articulated on the driver 55, the articulation point 75 on the driver 55 also being lower than the central axis of the bolt 74 in the basic position according to FIG. 20.
  • the eccentric disc 72 carries at its edge a series of small support rollers 76 which roll in succession on the abutment surface 66 when the eccentric disc 72 is pivoted. After the initial stroke has been carried out by means of the driver 55, the eccentric disc 72 remains on the driver 55 while the bolt 74 rises together with the scissors.
EP92103207A 1991-06-22 1992-02-26 Plateforme de lavage pour composer des scènes de théatre ou analogue Withdrawn EP0520137A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4120711 1991-06-22
DE19914120711 DE4120711C1 (fr) 1991-06-22 1991-06-22

Publications (1)

Publication Number Publication Date
EP0520137A1 true EP0520137A1 (fr) 1992-12-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP92103207A Withdrawn EP0520137A1 (fr) 1991-06-22 1992-02-26 Plateforme de lavage pour composer des scènes de théatre ou analogue

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EP (1) EP0520137A1 (fr)
DE (1) DE4120711C1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1375409A1 (fr) * 2002-06-17 2004-01-02 Remech Systemtechnik GmbH & Co. KG Dispositif de levage à ciseaux pour une installation de convoyage à rouleaux
CN104444310A (zh) * 2014-11-28 2015-03-25 天奇自动化工程股份有限公司 横移顶升滚床
CN107244639A (zh) * 2017-07-20 2017-10-13 兰州理工大学 舞台涉水旋转升降组合装备
CN107253653A (zh) * 2017-06-29 2017-10-17 无锡市京锡冶金液压机电有限公司 一种家用升降梯
WO2018178524A1 (fr) * 2017-03-31 2018-10-04 Bourdeau Florian Procédé et dispositif de soutien d'une roue
US11840437B1 (en) * 2022-07-05 2023-12-12 Tata Consultancy Services Limited Fork assembly for autonomous mobile robots and automated guided vehicles

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4413527A1 (de) * 1994-04-15 1995-10-19 Laweco Maschinen Und Apparateb Scherenhubtisch
DE9414744U1 (de) * 1994-09-12 1994-11-03 Zippo Hebetechnik Gmbh Scherenhebebühne
US6014936A (en) * 1997-07-30 2000-01-18 Stageright Corporation Variable height fold and roll staging and method of assembling same
US7584575B2 (en) 2003-07-18 2009-09-08 Stageright Corporation Variable height fold and roll staging and method of assembling same
DE102007041061B4 (de) * 2007-08-29 2014-06-18 Gotthilf Benz Turngeräte GmbH & Co. KG Anordnung einer Multifunktionswand, insbesondere Spiel- oder Sportwand, in einer Wandnische
DE202011004868U1 (de) 2011-04-05 2011-09-05 Eckhard Dommenz Motorisch betriebenes Scherenpodest für Bühnen, Podien, Saalebenen und Tribünen
CN112211443A (zh) * 2020-09-03 2021-01-12 无锡迪诺卡金属制品有限公司 一种新型舞台支架
DE102020216347B4 (de) 2020-12-18 2023-02-09 Continental Engineering Services Gmbh Antriebsanordnung für einen Scherenhub mit einer mechanischen Vorspannung
CN114215894B (zh) * 2022-02-22 2022-05-17 西安外事学院 一种凸轮传动装置及应用该凸轮传动装置的舞台

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1794165A (en) * 1929-08-01 1931-02-24 W C And D J Casey Automobile lift
CH276815A (de) * 1949-05-07 1951-07-31 Geilinger & Co Elektrische Hebebühne.
GB915556A (fr) * 1958-12-06 1963-01-16 Ingo Trepel
EP0034221A1 (fr) * 1980-01-31 1981-08-26 Hans-Jochen Eisenberg Plateforme à tréteau déplaçable en hauteur pour scènes de théâtre ou analogues
DE3442940A1 (de) * 1984-11-24 1986-06-05 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Hebetisch
EP0286615A1 (fr) * 1987-04-10 1988-10-12 Toivo Mäkelä Cric articulé

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1794165A (en) * 1929-08-01 1931-02-24 W C And D J Casey Automobile lift
CH276815A (de) * 1949-05-07 1951-07-31 Geilinger & Co Elektrische Hebebühne.
GB915556A (fr) * 1958-12-06 1963-01-16 Ingo Trepel
EP0034221A1 (fr) * 1980-01-31 1981-08-26 Hans-Jochen Eisenberg Plateforme à tréteau déplaçable en hauteur pour scènes de théâtre ou analogues
DE3442940A1 (de) * 1984-11-24 1986-06-05 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Hebetisch
EP0286615A1 (fr) * 1987-04-10 1988-10-12 Toivo Mäkelä Cric articulé

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1375409A1 (fr) * 2002-06-17 2004-01-02 Remech Systemtechnik GmbH & Co. KG Dispositif de levage à ciseaux pour une installation de convoyage à rouleaux
CN1304269C (zh) * 2002-06-17 2007-03-14 雷米克系统工程两合公司 优选用于滑动垫板－输送设备的升降装置
CN104444310A (zh) * 2014-11-28 2015-03-25 天奇自动化工程股份有限公司 横移顶升滚床
WO2018178524A1 (fr) * 2017-03-31 2018-10-04 Bourdeau Florian Procédé et dispositif de soutien d'une roue
CN107253653A (zh) * 2017-06-29 2017-10-17 无锡市京锡冶金液压机电有限公司 一种家用升降梯
CN107244639A (zh) * 2017-07-20 2017-10-13 兰州理工大学 舞台涉水旋转升降组合装备
US11840437B1 (en) * 2022-07-05 2023-12-12 Tata Consultancy Services Limited Fork assembly for autonomous mobile robots and automated guided vehicles

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Publication number Publication date
DE4120711C1 (fr) 1992-04-09

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