EP0367941A1 - Plateforme à tréteau déplaçable en hauteur pour scènes de théâtre ou analogues - Google Patents

Plateforme à tréteau déplaçable en hauteur pour scènes de théâtre ou analogues Download PDF

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Publication number
EP0367941A1
EP0367941A1 EP89116743A EP89116743A EP0367941A1 EP 0367941 A1 EP0367941 A1 EP 0367941A1 EP 89116743 A EP89116743 A EP 89116743A EP 89116743 A EP89116743 A EP 89116743A EP 0367941 A1 EP0367941 A1 EP 0367941A1
Authority
EP
European Patent Office
Prior art keywords
pedestal
platform
guide profiles
locking
upper frame
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Withdrawn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
EP89116743A
Other languages
German (de)
English (en)
Inventor
Hans-Jochen Eisenberg
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0367941A1 publication Critical patent/EP0367941A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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 height-adjustable, rectangular pedestal, which can be strung together with the same type for the construction of variable-height, theater stages, hall floors or the like which are variable in themselves, with an upper frame carrying a platform, which is supported at its corner regions by four scissors, one of which is supported Scissor legs can be moved together with a locking pin loaded by a locking spring on longitudinal bars of the upper frame provided with locking openings, the locking pins at their rear end being displaceable on guide profiles parallel to the longitudinal bars but axially restrained and the guide profiles transverse to the longitudinal bars by the adjustment path of the Locking pins are movably mounted on the underside of the platform and are adjustable against the force of the locking springs.
  • Such a pedestal is known from DE-PS 31 00 163. With him the actuation of the spring-loaded locking pin or the inward movement of the guide profiles takes place by means of a double lever which can be rotated about a vertical axis, at the opposite ends of which the guide profiles are articulated via a transmission linkage.
  • the double lever can be there be driven by a motor.
  • a crank-like rotary key is placed on the shaft of the double lever through a platform opening, so that the locking pin can be unlocked by turning the crank and the upper frame can be released for height adjustment. This makes it possible to adjust the height of the pedestals that are arranged next to one another without removing them from the assembly, but this still requires a certain amount of force despite the usual spring support.
  • a forceful better height adjustability is given in the pedestal known from DE-PS 33 09 203, in which the locking bolts are unlocked by means of long actuating rods, which are plugged through platform openings on corresponding extension ends from beneath the platform, and the purpose of unlocking the
  • the locking pins only have to be pulled towards the narrow ends of the pedestals.
  • the rods are coupled in the manner of a bayonet lock with the attachment ends of the adjustment device so that the platform is adjusted in height directly via the tie rods, with the operators standing on adjacent pedestals.
  • the adjusting device comprises relatively long Bowden cables which run to the locking pins, but which are often not desired. This applies in particular to excessively high pedestals according to DE-OS 34 12 549.3.
  • the four scissors are on four Longitudinal bars distributed and can thus move the movable legs each over the entire length of a longitudinal bar, which requires correspondingly long Bowden cables.
  • the invention has for its object to further develop the generic, bowden cable-free pedestal so that it can be unlocked effortlessly and safely from above within a network, brought to the desired height position and then locked again.
  • the pedestal according to the invention is characterized in that the guide profiles are each articulated via parallelogram links to platform-side bearing points and are connected via pull tabs to a central adjustment member which can be tightened in the direction of a transverse side of the upper frame.
  • the adjustment device can be accommodated in the space enclosed by the upper frame, so that it does not increase the minimum stacking height of a completely folded pedestal.
  • the adjustment device which is essentially only subjected to tension, can be realized with relatively light components, so that the total weight of the pedestal does not increase significantly.
  • a length-adjustable tension member is connected to the adjustment member below its tool attachment, which has at its inner end a connecting element for the pull tabs leading to the guide profiles.
  • this length-adjustable tension member which is expediently a spindle, the adjustment path of the guide profiles can be conveniently matched to the pivoting path of the actuating rod to be plugged in such that the guide profiles describe just a little more than the path required for the unlatching.
  • the invention can be used with particular advantage in the case of a pedestal with four longitudinal spars, each supported only by one of the scissors.
  • four such inwardly pivotable guide profiles are provided in such a pedestal, of which the two outer are each mounted between an outer and an inner longitudinal spar on the underside of the platform via parallelogram links and via a pull tab on the outer legs of an approximately E-shaped one his back legs are pivoted connecting element, with the middle leg of the tension member is connected.
  • the pedestal according to Figures 1 to 6 consists in its basic structure of egg no a platform 1 - only partially indicated by dash-dotted lines - supporting upper frame 2, a lower frame 3 and four, Y-shaped scissors 4 hinged to the pedestal corners, the longer of the corner of the lower frame 3 outgoing scissor legs 5 is each articulated to a carriage 6, two of which are each guided on one of the side rails 7, 8.
  • the slides 6 each carry a locking pin 10 loaded by a compression spring 9, which is locked in the locked position in one of the holes 11 provided on the longitudinal bars 7, 8.
  • At the rear ends of the locking pin 10 each tension members in the form of ropes or rods 12 are connected, which are connected at their other end to a double twin roller 13 which run in C-profile guide rails 14, 15.
  • the C-guide profiles 14, 15 are articulated at their ends via parallelogram links 16, 17, 18, 19, to platform-side bearing points 20, which in the exemplary embodiment are formed on cross-bracing struts 21 of the upper frame 2.
  • the C-guide profiles 14, 15 are also connected to a central tension member 25 via two V-shaped pull tabs 22, 23 via a bolt-like connecting element 24, which in turn is connected to an adjusting member 27 which can be pivoted about a lower axis 26, on the upper end 28 of which an actuating rod can be plugged through a recess 29 in the platform 1.
  • the links 16 to 19 are on the one hand directed outwards from the C-guide profiles 14, 15 and on the other hand are directed towards the side of the adjusting member 27 so that when the adjusting member 27 is pivoted in the direction of the arrow 30 the guide rails 14, 15 are pivoted towards one another in translation are, the traction cables 12 pull the locking bolts 10 out of the locking openings 11, so that the pedestal is released for height adjustment.
  • the tension member 25 is designed as a spindle which can be screwed more or less far into a bracket 31 connected to the adjusting member 27, so as to adapt the adjustment path of the guide profiles 14, 15 to the path to be able to make the adjusting member 27.
  • the pedestal top frame 32 has four parallel longitudinal bars 33, 34, 35, 36, to each of which one of the four scissors 37 is articulated in such a way that the longer scissor legs 38 each extend over the entire length of the associated one Longitudinal beam can drive away.
  • the unlocking device according to the first exemplary embodiment is used for the two carriages 39 which can be moved on the inner longitudinal bars 34, 35, this unlocking device via the actuating rod 40 shown on the left in FIG. 7 can be actuated.
  • Two further C-guide profiles 42, 43 are provided for the slides 41 running on the two outer longitudinal spars 33, 36, each of which is articulated on the platform side between an outer longitudinal spar and an inner longitudinal spar via two parallelogram links 44, 45, 46, 47.
  • the adjusting member 48 is connected in this embodiment via a tension member 49 to the upper end of the middle leg 50 of an approximately E-shaped connecting element 51, the back 52 of which consists of a shaft which is supported in its central region via a fork 53 on the platform side, which is under runs through the two longitudinal spars 34, 35 lying on the inside and engages behind each of them with their outer legs 54, 55.
  • the free ends of the outer legs are each articulated to the C-guide profiles 42, 43 via a pull tab 56. If the adjusting member 48 is pivoted to the right in FIGS. 7 to 9 by means of the actuating rod 57, the C-profiles 42, 43 in turn pivot inward and thereby unlock the locking pins which are axially bound to them.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Multimedia (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Ladders (AREA)
EP89116743A 1988-09-20 1989-09-09 Plateforme à tréteau déplaçable en hauteur pour scènes de théâtre ou analogues Withdrawn EP0367941A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3831895 1988-09-20
DE19883831895 DE3831895C1 (fr) 1988-09-20 1988-09-20

Publications (1)

Publication Number Publication Date
EP0367941A1 true EP0367941A1 (fr) 1990-05-16

Family

ID=6363318

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89116743A Withdrawn EP0367941A1 (fr) 1988-09-20 1989-09-09 Plateforme à tréteau déplaçable en hauteur pour scènes de théâtre ou analogues

Country Status (2)

Country Link
EP (1) EP0367941A1 (fr)
DE (1) DE3831895C1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8111554U1 (de) * 1981-04-16 1981-11-12 Gebrüder Mott Metallwaren und Bühnenbau GmbH, 6972 Tauberbischofsheim Bewegliches buehnenelement
DE3100163A1 (de) * 1981-01-07 1982-08-05 Eisenberg, Hans Jochen, 5600 Wuppertal Hoehenverstellbarer, rechteckiger podestbock
DE3309203A1 (de) * 1983-03-15 1984-09-20 Eisenberg, Hans Jochen, 5600 Wuppertal Hoehenverstellbarer podestbock fuer theaterbuehnen oder dgl.
DE3412549A1 (de) * 1984-04-04 1985-10-17 Hans Jochen 5600 Wuppertal Eisenberg Von hand hoehenverstellbarer podestbock fuer theaterbuehnen o.dgl.
DE3505271A1 (de) * 1985-02-15 1986-08-28 Podest-Bau Kleu GmbH, 5600 Wuppertal Hoehenverstellbares podest

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3100163A1 (de) * 1981-01-07 1982-08-05 Eisenberg, Hans Jochen, 5600 Wuppertal Hoehenverstellbarer, rechteckiger podestbock
DE8111554U1 (de) * 1981-04-16 1981-11-12 Gebrüder Mott Metallwaren und Bühnenbau GmbH, 6972 Tauberbischofsheim Bewegliches buehnenelement
DE3309203A1 (de) * 1983-03-15 1984-09-20 Eisenberg, Hans Jochen, 5600 Wuppertal Hoehenverstellbarer podestbock fuer theaterbuehnen oder dgl.
DE3412549A1 (de) * 1984-04-04 1985-10-17 Hans Jochen 5600 Wuppertal Eisenberg Von hand hoehenverstellbarer podestbock fuer theaterbuehnen o.dgl.
DE3505271A1 (de) * 1985-02-15 1986-08-28 Podest-Bau Kleu GmbH, 5600 Wuppertal Hoehenverstellbares podest

Also Published As

Publication number Publication date
DE3831895C1 (fr) 1990-02-08

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