EP0267542A1 - Wheel set for a mobile terrace - Google Patents
Wheel set for a mobile terrace Download PDFInfo
- 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
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- European Patent Office
- Prior art keywords
- grandstand
- rollers
- fluid
- lifting devices
- gear according
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- 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.
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- 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)
- Vibration Prevention Devices (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
Description
Die Erfindung betrifft ein Fahrwerk für eine verfahrbare Tribüne, insbesondere eine ausziehbare Tribüne, mit Laufrollen, die an Tribünenfüßen derart einziehbar gelagert sind, daß im eingezogenen Zustand der Laufrollen an den Tribünenfüßen befestigte Auflageflächen mit dem Untergrund (Hallenboden) zur Einleitung der Verkehrslast in Kontakt kommen.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 .
Derartige Tribünen, die auch als Teleskop-Tribünen bezeichnet werden, können dann, wenn sie nicht gebraucht werden, zusammengeschoben und in Nischen oder im Boden versenkt werden. Benötigt man Sitzplätze, so werden die Tribünen ausgefahren, wozu Laufrollen an den Tribünenfüßen angebracht sind.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.
Es ist bekannt, die Laufrollen über Federn nach oben "einziehbar" zu lagern, wobei die Federn so ausgebildet und angeordnet sind, daß die Laufrollen im unbelasteten Zustand der Tribüne über Auflageflächen hervorstehen. Wenn aber die Tribüne durch die Zuschauer belastet wird, werden die Federn zusammengedrückt und die Auflageflächen kommen mit dem Untergrund in Kontakt. Die Federn werden im algemeinen so steif gewählt, daß bei etwa 10 % der maximalen Verkehrslast die Auflageflächen mit dem Untergrund in Kontakt kommen.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.
Da derartige Tribünen vor allem in Sälen und Hallen verwendet werden, stellt die Belastung des Hallenbodens aufgrund dessen Empfindlichkeit ein großes Problem dar. Um keine zu hohen Flächendrücke auf den Hallenboden aufzubringen, fordert z.B. die DIN 18032 (Teil 5, Punkt 4.3) bestimmte Mindestmaße für die Laufrollen.Since such stands are used primarily in halls and halls, the load on the hall floor is a major problem due to its sensitivity. In order not to apply excessive surface pressure to the hall floor, e.g. DIN 18032 (part 5, point 4.3) specifies minimum dimensions for the rollers.
Ein weiteres Problem bei derartigen Tribünen besteht darin, daß diese schon dann standfest sein müssen, wenn der erste Zuschauer die Tribüne betritt. Aus diesem Grund werden oftmals noch gesonderte Feststeller vorgesehen, die die Tribüne auch im unbelasteten Zustand arretieren.Another problem with such stands is that they have to be stable when the first spectator enters the stands. For this reason, separate brakes are often provided, which also lock the grandstand in the unloaded state.
Bei der oben beschriebenen Feder-Konstruktion tritt nun das Problem auf, daß dann, wenn die Tribüne abgesenkt ist, also die Auflageflächen mit dem Hallenboden in Kontakt sind, zwar der größte Teil der Verkehrslast über die großflächigen Auflageflächen in den Untergrund eingeleitet wird, die 10 % der Verkehrslast aber, die zum Einziehen der Laufrollen benötigt werden, drücken ständig die Laufrollen auf den Hallenboden. Während des Verfahrens der Tribüne sind zwar die Flächendrücke ungefährlich, der Hallenboden wird nicht bleibend verformt, wenn aber die Tribüne längere Zeit steht, so drücken die Rollen immer auf die gleiche Stelle, so daß selbst bei nur 10 % der Verkehrslast, die über die Laufrollen in den Boden eingeleitet werden, eine bleibende Verformung auftreten kann. Dabei ist zu beachten, daß die Rollen im ausgefahrenen Zustand der Tribüne stets dieselbe Position einnehmen.With the spring construction described above, the problem now arises that when the grandstand is lowered, i.e. the support surfaces are in contact with the hall floor, most of the traffic load is introduced into the underground via the large support surfaces, the 10th However,% of the traffic load that is required to retract the castors constantly press the castors onto the hall floor. During the movement of the grandstand, the surface pressures are harmless, the hall floor is not permanently deformed, but if the grandstand is standing for a long time, the castors always press on the same point, so that even with only 10% of the traffic load, the castors are introduced into the ground, permanent deformation can occur. It should be noted that the rollers always assume the same position when the grandstand is extended.
Ausgehend vom oben genannten Stand der Technik ist es Aufgabe der vorliegenden Erfindung, ein Fahrwerk der eingangs genannten Art dahingehend weiterzubilden, daß eine hohe Standfestigkeit bei niedriger Bodenbelastung sichergestellt ist.Starting from the above-mentioned prior art, it is an object of the present invention to develop a chassis of the type mentioned at the outset in such a way that a high level of stability is ensured with a low floor load.
Die erfindungsgemäße Lösung besteht darin, daß die Laufrollen über fluidbetätigte Hubeinrichtungen ein-/ausfahrbar gelagert sind.The solution according to the invention is that the rollers are mounted retractable / extendable via fluid-operated lifting devices.
Gemäß der Erfindung werden also die Laufrollen über fluidbetätigte Hubeinrichtungen dann eingefahren bzw. eingezogen, wenn die Tribüne ihre Endposition im ausgefahrenen Zustand erreicht hat. Unter Einfahren der Rollen ist hierbei zu verstehen, daß die kraftschlüssige Verbindung zwischen den Tribünenfüßen und den Rollen im wesentlichen unterbrochen ist.According to the invention, 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.
Vorzugsweise werden mehrere Laufrollen zu einem Fahrwerk zusammengefaßt, das jeweils einem Tribünenfuß zugeordnet ist. Ein solches Fahrwerk wird mit einer einzigen Hubeinrichtung versehen, so daß mehrere Rollen gleichzeitig eingefahren werden können. Bei einer anderen bevorzugten Ausführungsform der Erfindung sind mehrere gleichartige Hubeinrichtungen derart in fluiddichter Verbindung miteinander gehal ten, daß sie gemeinsam betätigbar sind. Hierzu eignet sich z.B. ein Schlauchsystem.Preferably, several rollers are combined to form a running gear, each of which is assigned to a grandstand foot. Such a chassis is provided with a single lifting device so that several rollers can be retracted at the same time. In another preferred embodiment of the invention, 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.
Vorzugsweise ist jeder Hubeinrichtung (bzw. jeder Gruppe von zusammengefaßten Hubeinrichtungen) eine steuerbare Ventilanordnung zugeordnet, über die der Fluiddruck erhöht oder abgesenkt werden kann. Wenn man die Tribüne ausgefahren hat, so kann man das Ventil öffnen, so daß der Fluiddruck abgesenkt wird.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.
Diese Betätigung der Ventilanordnungen kann nun von Hand geschehen, z.B. über ein Gestänge. Bei einer anderen bevorzugten Ausführungsform der Erfindung ist die Ventilanordnung selbsttätig steuerbar ausgebildet. Diese selbst tätige Steuerung kann z. B. über ein Überdruckventil mit ausgeprägten Hysteresseeigenschaften geschehen, das dann (bleibend) öffnet, wenn der Fluiddruck, der ja der aufgenommenen Last entspricht, einen bestimmten Betrag überschreitet. Dieser Betrag kann einen Wert sehr nah bei bzw. über dem Eigengewicht der Tribune haben, so daß dann, wenn die Tribünenkonstruktion ganz ihre Endposition eingenommen hat, eine Bedienungsperson die Bühne betritt und damit das Ventil auslöst, so daß die kraftschlüssige Verbindung zwischen Tribünenfuß und Laufrollen durch Ablassen des Drucks aufgehoben wird.This actuation of the valve arrangements can now be done manually, for example using a linkage. In another preferred embodiment of the invention, the 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.
Vorzugsweise ist mindestens eine Druck-Fluidquelle vorgesehen, die mit den Ventilanordnungen der Hubeinrichtungen verbindbar ist. Eine derartige Druck-Fluidquelle kann eine Pumpe (hand- oder motorisch betätigt) sein, es eignen sich aber auch Druckspeicher, wie z. B. eine Preßluftflasche (bzw. beide zusammen).At least one pressure fluid source is preferably provided which can be connected to the valve arrangements of the lifting devices. Such 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).
Besonders einfach ist die Konstruktion dann, wenn die Hubeinrichtungen ein fluiddichtes Kissen umfassen. Eine derartige Anordnung ist einfacher als Hubzylinder oder dergleichen. Vorzugsweise umfaßt in diesem Fall das Fahrwerk eine Halteschiene für die Laufrollen, die in einem am Tribünenfuß befestigten Träger höhenverschiebbar gelagert ist. Zwischen der Halteschiene und dem Träger sitzt das Hubkissen.The construction is particularly simple when the lifting devices comprise a fluid-tight cushion. Such an arrangement is simpler than lifting cylinders or the like. In this case, 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.
Bei einer speziellen Ausführungsform ist vorgesehen, daß die Halteschiene eine obere Endfläche aufweist, im Träger, der im wesentlichen ein Hutprofil aufweist, gelagert ist, und daß das Kissen schlauchförmig ausgebildet und zwischen der oberen Endfläche der Halteschiene und der gegenüberliegenden Fläche des Trägers angeordnet ist.In a special embodiment it is provided that the holding rail has an upper end surface, is mounted in the carrier, which essentially has a hat profile, and that the cushion is tubular and is arranged between the upper end surface of the holding rail and the opposite surface of the carrier.
Weitere bevorzugte Ausführungsformen und erfindungswesentliche Merkmale ergeben sich aus dem nachfolgend beschriebenen Ausführungsbeispiel einer bevorzugten Ausführungsform der Erfindung, das anhand von Abbildungen näher erläutert wird. Hierbei zeigen
- Fig. 1 eine schematisierte, halbgeschnittene Seitenansicht eines Fahrwerkes mit ausgefahrenen Rollen;
- Fig. 2 einen Schnitt entlang der Linie II-II aus Fig. 1;
- Fig. 3 und 4 Darstellungen wie die Fig. 1 und 2, jedoch im abgesenkten Zustand der Laufrollen.
- Figure 1 is a schematic, half-sectional side view of a chassis with extended rollers.
- FIG. 2 shows a section along the line II-II from FIG. 1;
- 3 and 4 representations like FIGS. 1 and 2, but in the lowered state of the rollers.
Wie in Fig. 1 gezeigt, umfaßt die bevorzugte Ausführungsform des Fahrwerkes 8 einen Träger 9, der im Querschnitt ein hut-förmiges Profil aufweist, wobei der Innenraum des Trägers 9 nach unten, zum Hallenboden 10 hin offen ist.As shown in FIG. 1, 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.
An seiner Oberseite ist der Träger 9 an einem Fuß 5 der Tribüne festgeschweißt.At its top, the support 9 is welded to a foot 5 of the grandstand.
Im Träger 9 ist eine Halteschiene 2 über eine höhenverschiebliche Lagerung 4 gehalten, an der mehrere Laufrollen 1 drehbar befestigt sind. Die Lagerung 4 ist hierbei derart ausgebildet, daß die Laufrollen 1 im abgesenkten Zustand über Auflageflächen 3 hervorstehen, die am Unterrand des Trägers 9 sitzen. In der eingefahrenen Position der Halteschiene 2, wenn also die Laufrollen 1 angehoben sind, sind die großflächig ausgebildeten Auflageflächen 3 in Kontakt mit dem Hallenboden 10, die Laufrollen 1 liegen nur noch mit ihrem vernachlässigbaren Eigengewicht auf dem Hallenboden 10 auf.In the carrier 9, a
Die Halteschiene 2 für die Laufrollen 1 weist die Form eines U-Profiles auf, so daß durch ihre Oberseite im Träger 9 ein Hohlraum gebildet ist. In diesem Hohlraum sitzt ein Hubkissen 6, das als Schlauch ausgebildet se in kann. Der Schlauch 6 ist mit einem Ventil 7 versehen, das durch eine Bohrung nach oben aus dem Träger 9 heraussteht.The
Im Stau-Zustand ist das Hubkissen 6 aufgeblasen, das Ventil 7 geschlossen, so daß die Rollen 1 über die Auflageflächen 3 nach unten hervorstehen. In diesem Zustand kann man die Bühne verfahren, die Rollen halten die Auflageflächen 3 im notwendigen Abstand zum Hallenobden 10. Dadurch, daß für alle Laufrollen 1 ein gemeinsames Hubkissen 6 vorgesehen ist, können gewisse Unebenheiten des Bodens 10 auch ausgeglichen werden.In the traffic jam condition, 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.
Sobald die Tribüne ihre ausgezogene Endposition erreicht hat, öffnet man das Ventil 7, so daß das im Hubkissen 6 enthaltene Druckfluid ausströmen kann. Die Auflageflächen 3 kommen dann mit dem Hallenboden 10 in Kontakt (siehe Fig. 3 und 4). Dadurch, daß der Druck aus dem Kissen 6 abgelassen ist, wird keine Kraft mehr über die Laufrollen 1 in den Hallenboden 10 eingeleitet, gleichgültig wie groß die aufgebrachte Verkehrslast ist. Darüber hinaus steht die Tribüne durch die reibschlüssige Verbindung der Auflageflächen 3 mt dem Boden 10 fest, so daß die notwendige Sicherheit auch dann bereits gewährleistet ist, wenn der erste Benutzer die Bühne betritt.As soon as the grandstand has reached its extended end position, 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. In addition, 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.
Will man die Tribüne wieder zusammenschieben, so pumpt man durch die Ventile 7 Luft oder ein Fluid in die Hubkissen 6, so daß die Tribüne angehoben wird. Dadurch, daß das Hubkissen 6 als langer Schlauch ausgebildet ist, genügt hierfür ein relativ geringer Druck, der über eine Handpumpe, eine motorisch getriebene Pumpe oder über mitgeführte Druckluftbehälter einbringbar ist. Selbstverständlich ist es auch möglich, eine entsprechend lange Druckluftleitung, die zu einem Kompressor führt, zu verwenden.If you want to push the grandstand back together, you pump air or fluid through the valves 7 into the lifting cushion 6, so that the grandstand is raised. Because 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.
Bei einer hier nicht gezeigten bevorzugten Ausführungsform der Erfindung ist das Ventil 7 wie eingangs beschrieben als Überdruckventil ausgeführt, das dann öffnet, wenn der Innendruck im Hubkissen 6 einen vorbestimmten Betrag erreicht. Dadurch wird eine Art "selbsttätige" Vorrichtung geschaffen.In a preferred embodiment of the invention, not shown here, the 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.
Sämtliche hier aufgeführten Einzelmerkmale werden für sich allein und in beliebiger Kombination gesehen als erfindungswesentlich beansprucht.All of the individual features listed here are claimed on their own and in any combination as essential to the invention.
- 1 Laufrollen1 castors
- 2 Halteschienen für die Laufrollen2 support rails for the rollers
- 3 Auflageflächen3 contact surfaces
- 4 Bewegliche Lagerung4 Movable storage
- 5 Tribünenfuß5 grandstand feet
- 6 Hubkissen6 lifting cushions
- 7 Anschluß (Ventil)7 connection (valve)
- 8 Fahrwerk8 chassis
- 9 Träger9 carriers
- 10 Hallenboden10 hall floors
Claims (10)
dadurch gekennzeichnet,
daß die Laufrollen (1) über fluidbetätigte Hubeinrichtungen (6) ein-/ausfahrbar gelagert sind.1.Chassis for a movable grandstand, in particular an extendable grandstand, with castors (1) which are retractably mounted on grandstand feet (5) in such a way that in the retracted state of the casters (1), support surfaces (3) fastened to the grandstand feet with the ground (Hall floor) come into contact to initiate the traffic load,
characterized by
that the rollers (1) are mounted retractable / extendable via fluid-operated lifting devices (6).
dadurch gekennzeichnet,
daß mehrere Laufrollen (1) zu einem Fahrwerk (3) zusammen gefaßt sind, das einem Tribünenfuß (7) zugeordnet ist, und daß jedes Fahrwerk (8) eine Hubeinrichtung (6) aufweist.2. Running gear according to claim 1,
characterized by
that several rollers (1) to form a chassis (3) are summarized, which is assigned to a grandstand base (7) and that each undercarriage (8) has a lifting device (6).
dadurch gekennzeichnet,
daß mehrere Hubeinrichtungen (6) derart in fluiddichter Verbindung miteinander stehen, daß sie gemeinsam betätigbar sind.3. Running gear according to one of the preceding claims,
characterized,
that several lifting devices (6) are in fluid-tight connection with one another in such a way that they can be actuated together.
dadurch gekennzeichnet,
daß den Hubeinrichtungen eine steuerbare Ventilanordnung (7) zugeordnet ist, über die der Fluiddruck erhöht oder abgesenkt werden kann.4. Running gear according to one of the preceding claims,
characterized,
that the lifting devices are assigned a controllable valve arrangement (7), via which the fluid pressure can be increased or decreased.
dadurch gekennzeichnet,
daß die Ventilanordnung (7) von Hand (gegebenenfalls fern-) steuerbar ist.5. landing gear according to claim 4,
characterized,
that the valve arrangement (7) can be controlled by hand (possibly remotely).
dadurch gekennzeichnet,
daß die Ventilanordnung (7) derart selbstätig steuerbar ist, daß eine um einen bestimmten Betrag (2 bis 10 % der Verkehrslast) über das Eigengewicht der Tribüne hinausgehende Belastung die Ventilanordnung (7) öffnet.6. Suspension according to claim 4,
characterized,
that the valve arrangement (7) can be controlled automatically in such a way that a load exceeding the weight of the grandstand by a certain amount (2 to 10% of the traffic load) opens the valve arrangement (7).
daß (mindestens) eine Druck-Fluidquelle vorgesehen ist, die mit den Ventilanordnungen (7) der Hubeinrichtungen (6) verbindbar ist, wobei die Druck-Fluidquelle eine Pumpe und/oder einen Druckspeicher (Preßluftflasche) aufweist.7. Running gear according to one of the preceding claims, characterized in
that (at least) a pressure fluid source is provided which can be connected to the valve arrangements (7) of the lifting devices (6), the pressure fluid source having a pump and / or a pressure accumulator (compressed air bottle).
dadurch gekennzeichnet,
daß die Hubeinrichtung (6) ein fluiddichtes Kissen umfaßt.8. Suspension according to one of the preceding claims,
characterized,
that the lifting device (6) comprises a fluid-tight cushion.
dadurch gekennzeichnet,
daß das Fahrwerk (8) eine Halteschiene (2) für die Laufrollen (1) umfaßt, die in einem am Tribünenfuß (7) befestigten Träger (9) höhen-verschiebbar gelagert ist.9. Chassis according to one of the preceding claims,
characterized,
that the undercarriage (8) comprises a holding rail (2) for the rollers (1), which is mounted in a height-displaceable manner in a support (9) fastened to the stand (7).
dadurch gekennzeichnet,
daß die Halteschiene (2) eine obere Endfläche aufweist, im Träger (9), der im wesentlichen ein Hutprofil aufweist, gelagert ist, und daß das Kissen (6) schlauchförmig ausgebildet und zwischen der oberen Endfläche der Halteschiene (2) und der gegenüberliegenden Fläche des Trägers (9) angeordnet ist.10. Suspension according to claim 9,
characterized,
that the holding rail (2) has an upper end surface, is mounted in the carrier (9), which essentially has a hat profile, and that the cushion (6) is tubular and between the upper end surface of the holding rail (2) and the opposite surface the carrier (9) is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT87116321T ATE62971T1 (en) | 1986-11-11 | 1987-11-05 | CHASSIS FOR A MOBILE STAND. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3638506 | 1986-11-11 | ||
| DE3638506A DE3638506C1 (en) | 1986-11-11 | 1986-11-11 | Chassis for a movable grandstand |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0267542A1 true EP0267542A1 (en) | 1988-05-18 |
| EP0267542B1 EP0267542B1 (en) | 1991-04-24 |
Family
ID=6313690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP87116321A Expired - Lifetime EP0267542B1 (en) | 1986-11-11 | 1987-11-05 | Wheel set for a mobile terrace |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0267542B1 (en) |
| AT (1) | ATE62971T1 (en) |
| DE (2) | DE3638506C1 (en) |
Cited By (1)
| 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)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19943969A1 (en) * | 1999-09-14 | 2001-03-15 | Joachim Aurich | Method for raising and lowering vehicle uses inflatable tube mounted on rollers which is positioned between axles of vehicle and inflated using, e.g. compressor |
| DE10043649B4 (en) * | 2000-09-05 | 2004-04-15 | Hans Kroher | Running gear for a movable grandstand |
| ITRM20080539A1 (en) * | 2008-10-09 | 2010-04-10 | Angelo Trotta | PNEUMATIC LIFTING AND HANDLING OF OBJECTS, IN PARTICULAR FOR FURNISHING OBJECTS. |
| WO2012150853A1 (en) * | 2011-05-02 | 2012-11-08 | Alismobile, S.A. De C.V. | System of telescopic stands having a motorised carriage for moving same |
| CN102328552B (en) * | 2011-07-11 | 2013-04-17 | 江苏金陵体育器材股份有限公司 | Stand roller braking device |
| FI129355B (en) * | 2020-02-21 | 2021-12-31 | Maekelae Alu Oy | Transport support |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1089634A (en) * | 1953-09-17 | 1955-03-21 | Improvements to mobile partitions for buildings | |
| 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 |
-
1986
- 1986-11-11 DE DE3638506A patent/DE3638506C1/en not_active Expired
-
1987
- 1987-11-05 AT AT87116321T patent/ATE62971T1/en not_active IP Right Cessation
- 1987-11-05 EP EP87116321A patent/EP0267542B1/en not_active Expired - Lifetime
- 1987-11-05 DE DE8787116321T patent/DE3769597D1/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2870492A (en) * | 1953-04-06 | 1959-01-27 | Fred Medart Mfg Co | Seating structures |
| FR1089634A (en) * | 1953-09-17 | 1955-03-21 | Improvements to mobile partitions for buildings | |
| 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)
| 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 |
|---|---|
| DE3769597D1 (en) | 1991-05-29 |
| DE3638506C1 (en) | 1988-02-18 |
| ATE62971T1 (en) | 1991-05-15 |
| EP0267542B1 (en) | 1991-04-24 |
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