EP0267542A1 - Train de roues pour tribune mobile - Google Patents

Train de roues pour tribune mobile Download PDF

Info

Publication number
EP0267542A1
EP0267542A1 EP87116321A EP87116321A EP0267542A1 EP 0267542 A1 EP0267542 A1 EP 0267542A1 EP 87116321 A EP87116321 A EP 87116321A EP 87116321 A EP87116321 A EP 87116321A EP 0267542 A1 EP0267542 A1 EP 0267542A1
Authority
EP
European Patent Office
Prior art keywords
grandstand
rollers
fluid
lifting devices
gear 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.)
Granted
Application number
EP87116321A
Other languages
German (de)
English (en)
Other versions
EP0267542B1 (fr
Inventor
Michael Bauer
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.)
Bayerische Buehnenbau GmbH
Original Assignee
Bayerische Buehnenbau 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
Application filed by Bayerische Buehnenbau GmbH filed Critical Bayerische Buehnenbau GmbH
Priority to AT87116321T priority Critical patent/ATE62971T1/de
Publication of EP0267542A1 publication Critical patent/EP0267542A1/fr
Application granted granted Critical
Publication of EP0267542B1 publication Critical patent/EP0267542B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E04H3/12—Tribunes, grandstands or terraces for spectators
    • E04H3/123—Telescopic grandstands

Definitions

  • the invention relates to a chassis for a movable grandstand, in particular an extendable grandstand, with castors which are mounted retractable on grandstand feet so that in the retracted state of the casters on the grandstand feet fixed contact surfaces come into contact with the ground (hall floor) to initiate the traffic load .
  • Such stands which are also referred to as telescopic stands, can be pushed together when not in use and lowered into niches or in the floor. If seats are required, the grandstands are extended, for which purpose castors are attached to the grandstand feet.
  • rollers It is known to store the rollers "retractable" above springs, the springs being designed and arranged so that the rollers in the unloaded state the grandstand protrude above contact surfaces. But when the stands are loaded by the spectators, the springs are compressed and the contact surfaces come into contact with the ground.
  • the springs are generally chosen so stiff that the contact surfaces come into contact with the ground at about 10% of the maximum traffic load.
  • rollers are mounted retractable / extendable via fluid-operated lifting devices.
  • the rollers are then retracted or drawn in via fluid-operated lifting devices when the grandstand has reached its end position in the extended state. Retracting the rollers means that the non-positive connection between the stands and the rollers is essentially interrupted.
  • rollers are combined to form a running gear, each of which is assigned to a grandstand foot.
  • a chassis is provided with a single lifting device so that several rollers can be retracted at the same time.
  • several similar lifting devices are held in fluid-tight connection with one another in such a way that they can be actuated together. For this, e.g. a hose system.
  • Each lifting device (or each group of combined lifting devices) is preferably assigned a controllable valve arrangement, via which the fluid pressure can be increased or decreased. When you have extended the grandstand, you can open the valve so that the fluid pressure is reduced.
  • valve arrangement is designed to be automatically controllable.
  • This itself active control can e.g. B. happen via a pressure relief valve with pronounced hysteresis properties, which then opens (permanent) when the fluid pressure, which corresponds to the load absorbed, exceeds a certain amount.
  • This amount can have a value very close to or above the weight of the grandstand, so that when the grandstand construction has reached its final position, an operator enters the stage and thus triggers the valve, so that the non-positive connection between the grandstand foot and castors is released by releasing the pressure.
  • At least one pressure fluid source is preferably provided which can be connected to the valve arrangements of the lifting devices.
  • a pressure fluid source can be a pump (manually or motor-operated), but pressure accumulators, such as, for. B. a compressed air bottle (or both together).
  • the undercarriage preferably comprises a holding rail for the rollers, which is mounted so as to be vertically displaceable in a support attached to the stand base.
  • the lifting cushion sits between the support rail and the carrier.
  • the holding rail has an upper end surface
  • the carrier which essentially has a hat profile
  • the cushion is tubular and is arranged between the upper end surface of the holding rail and the opposite surface of the carrier.
  • the preferred embodiment of the undercarriage 8 comprises a support 9, which has a hat-shaped profile in cross section, the interior of the support 9 being open downwards towards the hall floor 10.
  • the support 9 is welded to a foot 5 of the grandstand.
  • a holding rail 2 is held by a height-adjustable bearing 4, on which several rollers 1 are rotatably attached.
  • the bearing 4 is designed in such a way that the rollers 1 protrude in the lowered state over bearing surfaces 3, which sit on the lower edge of the carrier 9.
  • the large-area support surfaces 3 are in contact with the hall floor 10, the rollers 1 rest only on the hall floor 10 with their negligible weight.
  • the holding rail 2 for the rollers 1 has the shape of a U-profile, so that a cavity is formed by its top in the carrier 9. In this cavity sits a lifting cushion 6, which can be formed as a hose.
  • the hose 6 is provided with a valve 7 which projects upwards out of the carrier 9 through a bore.
  • the lifting cushion 6 is inflated, the valve 7 is closed, so that the rollers 1 protrude downward over the contact surfaces 3. In this state you can move the stage, the rollers keep the support surfaces 3 at the necessary distance from the hall floor 10. Because a common lifting cushion 6 is provided for all rollers 1, certain unevenness of the floor 10 can also be compensated for.
  • the valve 7 is opened so that the pressure fluid contained in the lifting cushion 6 can flow out.
  • the contact surfaces 3 then come into contact with the hall floor 10 (see FIGS. 3 and 4). Because the pressure is released from the cushion 6, no more force is introduced via the rollers 1 into the hall floor 10, regardless of the size of the traffic load applied.
  • the grandstand is fixed by the frictional connection of the support surfaces 3 mt the floor 10, so that the necessary security is guaranteed even when the first user enters the stage.
  • the lifting cushion 6 is designed as a long hose, a relatively low pressure is sufficient for this, which can be introduced via a hand pump, a motor-driven pump or via a compressed air container carried along. Of course, it is also possible to use a correspondingly long compressed air line that leads to a compressor.
  • valve 7 is designed as a pressure relief valve as described at the beginning, which opens when the internal pressure in the lifting cushion 6 reaches a predetermined amount. This creates a kind of "automatic" device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Legs For Furniture In General (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)
  • Vehicle Body Suspensions (AREA)
  • Vibration Prevention Devices (AREA)
EP87116321A 1986-11-11 1987-11-05 Train de roues pour tribune mobile Expired - Lifetime EP0267542B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87116321T ATE62971T1 (de) 1986-11-11 1987-11-05 Fahrwerk fuer eine verfahrbare tribuene.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3638506 1986-11-11
DE3638506A DE3638506C1 (de) 1986-11-11 1986-11-11 Fahrwerk fuer eine verfahrbare Tribuene

Publications (2)

Publication Number Publication Date
EP0267542A1 true EP0267542A1 (fr) 1988-05-18
EP0267542B1 EP0267542B1 (fr) 1991-04-24

Family

ID=6313690

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87116321A Expired - Lifetime EP0267542B1 (fr) 1986-11-11 1987-11-05 Train de roues pour tribune mobile

Country Status (3)

Country Link
EP (1) EP0267542B1 (fr)
AT (1) ATE62971T1 (fr)
DE (2) DE3638506C1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2291040A (en) * 1994-07-09 1996-01-17 Mangar International Ltd Medical Lifting Devices

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19943969A1 (de) * 1999-09-14 2001-03-15 Joachim Aurich Kraftfahrzeugversetzeinrichtung
DE10043649B4 (de) * 2000-09-05 2004-04-15 Hans Kroher Fahrwerk für eine verfahrbare Tribüne
ITRM20080539A1 (it) * 2008-10-09 2010-04-10 Angelo Trotta Dispositivo pneumatico di sollevamento e movimentazione di oggetti, in particolare per oggetti di arredamento.
WO2012150853A1 (fr) * 2011-05-02 2012-11-08 Alismobile, S.A. De C.V. Système de gradins télescopiques comprenant un chariot motorisé pour son transport
CN102328552B (zh) * 2011-07-11 2013-04-17 江苏金陵体育器材股份有限公司 看台滚轮刹车装置
FI129355B (fi) * 2020-02-21 2021-12-31 Maekelae Alu Oy Siirtoalusta

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1089634A (fr) * 1953-09-17 1955-03-21 Perfectionnements apportés aux cloisons mobiles pour constructions
US2870492A (en) * 1953-04-06 1959-01-27 Fred Medart Mfg Co Seating structures
US2877507A (en) * 1956-04-04 1959-03-17 Cons Foundries And Mfg Corp Mobile tiered assemblage
US2968841A (en) * 1956-11-19 1961-01-24 Universal Bleacher Co Movable folding bleacher
US3525184A (en) * 1967-12-18 1970-08-25 Western Unit Corp Stadium with mobile seating sections

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2870492A (en) * 1953-04-06 1959-01-27 Fred Medart Mfg Co Seating structures
FR1089634A (fr) * 1953-09-17 1955-03-21 Perfectionnements apportés aux cloisons mobiles pour constructions
US2877507A (en) * 1956-04-04 1959-03-17 Cons Foundries And Mfg Corp Mobile tiered assemblage
US2968841A (en) * 1956-11-19 1961-01-24 Universal Bleacher Co Movable folding bleacher
US3525184A (en) * 1967-12-18 1970-08-25 Western Unit Corp Stadium with mobile seating sections

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2291040A (en) * 1994-07-09 1996-01-17 Mangar International Ltd Medical Lifting Devices
GB2291040B (en) * 1994-07-09 1997-09-17 Mangar International Ltd Medical lifting devices
US5669086A (en) * 1994-07-09 1997-09-23 Mangar International Limited Inflatable medical lifting devices

Also Published As

Publication number Publication date
DE3638506C1 (de) 1988-02-18
EP0267542B1 (fr) 1991-04-24
DE3769597D1 (de) 1991-05-29
ATE62971T1 (de) 1991-05-15

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