EP1491703A1 - Crane bucket for the conveying of construction material - Google Patents

Crane bucket for the conveying of construction material Download PDF

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Publication number
EP1491703A1
EP1491703A1 EP03405456A EP03405456A EP1491703A1 EP 1491703 A1 EP1491703 A1 EP 1491703A1 EP 03405456 A EP03405456 A EP 03405456A EP 03405456 A EP03405456 A EP 03405456A EP 1491703 A1 EP1491703 A1 EP 1491703A1
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EP
European Patent Office
Prior art keywords
container
silo according
silo
flap closure
opening
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
EP03405456A
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German (de)
French (fr)
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EP1491703B1 (en
Inventor
Eduard Vögtli
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.)
OBRIST BAUGERAETE AG
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Obrist Geratebau AG
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Application filed by Obrist Geratebau AG filed Critical Obrist Geratebau AG
Priority to EP20030405456 priority Critical patent/EP1491703B1/en
Publication of EP1491703A1 publication Critical patent/EP1491703A1/en
Application granted granted Critical
Publication of EP1491703B1 publication Critical patent/EP1491703B1/en
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/02Conveying or working-up concrete or similar masses able to be heaped or cast
    • E04G21/025Buckets specially adapted for use with concrete
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C3/00Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith and intended primarily for transmitting lifting forces to loose materials; Grabs
    • B66C3/14Grabs opened or closed by driving motors thereon

Definitions

  • the invention relates to a crane silo for the transport of pourable building materials, such as concrete, gravel, sand or the like.
  • a container which can be fed through a filling opening at the top and which has a flap closure which can be opened at the lower end by means of a lever mechanism and for storage on a frame is attached.
  • Crane silos of this type are known from CH 685831 A5 and have clearly stood their ground over other constructions due to their solidity and reliability. They are used in sizes with a capacity of 600, 800, 1200 and 1500 liters on construction sites, where tower cranes are used for larger loads. These crane silos have a correspondingly high dead weight due to the relatively large capacity and the necessary stability and can therefore not be used on construction sites of smaller dimensions with a lack of transport capacity. Because the lighter tower cranes, so-called quick assembly cranes, have a range of max. 35 m at the free end of the boom a load capacity of 1000 kg and less, which is not sufficient to 500 or more liters of concrete or.
  • the object of the present invention is to provide suitable functionality and a relatively low weight with optimal absorption capacity. This means that a crane silo has to be created which, in unfavorable environmental conditions, if it can be operated by a person, for example from narrow standing areas, has a high level of operating comfort and excellent functional properties.
  • the object is achieved in that the container has an approximately circular loading opening and is formed in a funnel shape in the outlet direction, such that the outlet opening of the container located at the lower end opens into the flap closure which has an approximately rectangular opening when emptied.
  • the at least approximately circular loading opening which conveys a favorable stability, and the rectangular emptying opening of the flap closure with a metered removal of concrete, sand, gravel or the like from the container
  • This goal can be achieved by moving the container jacket at its height from a circular loading opening into an approximately oval or elliptical one The outlet opening is deformed so that a large outlet opening can form on the container.
  • the outlet opening is. -Edge, adapted to the rectangular outlet opening of the flap closure, with rounded outlet edges. That is, the outlet opening of the container should have at least approximately straight intermediate sections on the longitudinal and / or narrow side corresponding to the movement of the flap bottom.
  • An excellent outlet opening of the container can be achieved if the transition from the longitudinal side to the narrow side of the outlet opening is designed as a curved section, so that an optimal seal can be created by the flap closure at the outlet opening of the container 3.
  • the container Due to the shape of the container, it can be conveniently Create emptying conditions, because the crane silo can be formed on the entire circumference with relatively steep wall sections that enclose an angle of 15 ° and less with respect to a vertical. A harmful knock on the wall of the container due to incomplete emptying or bridging can thus be avoided.
  • the container can by edges on the Coat that run from the filling to the outlet opening are reinforced. This corresponds to an optimization measure to achieve a low weight of the crane silo when using relatively thin steel sheet.
  • the jacket sheet thickness of the container be 1.25 to 1.75 mm, preferably 1.5 mm, which contributes to the optimization against wear, for high reliability and a favorable weight, and enables the use of commercially available sheet metal.
  • the container can expediently be provided on the outer circumference with a reinforcement ring between the loading and discharge opening, which is able to absorb the relatively high reveal pressure without noticeably increasing its own weight.
  • the filling opening of the container is formed by a bead-like edge, damage to solid objects can be avoided when the crane silo strikes and the container can be given greater rigidity and stability.
  • the bead-like edge can be formed in a simple manner by a tube connected to the container jacket by welding.
  • the container shape it proves to be an essential advantage if the container is formed from two approximately uniform jacket parts, so that production can be simplified.
  • the jacket parts are welded to form a container, it is advantageous if the former have tabs projecting along at least one edge region along a jacket part.
  • the flaps which partially form a double container wall, can be formed on the upper end of the container for fastening a suspension device of the silo, for example by suspension eyes. If a cuff is applied to the circumference above the outlet opening of the container by welding, then this can help the stability of the container beyond this area.
  • the outlet opening of the container forms a sealing lip opposite the flap closure, which will also serve to reinforce the edge area against wear.
  • the flap lock is advantageously drive-connected to lever gears which are arranged on the frame and can be actuated by means of the operating lever (s) and which actuate or. the ease of use of the flap lock due to reduction ratios.
  • the frame to which the container is attached preferably has a rectangular shape, the longitudinal side of which extends approximately parallel to the pivot axis of two flap closure elements forming the flap closure; i.e., the entire height of the container is protected against impact damage, on the one hand by the bead-like upper edge of the filling opening and on the other hand by the frame underneath. Nevertheless, the frame does not protrude laterally from the container.
  • a shaft is provided for actuating the two flap lock elements on the lateral ends of the flap lock along the long side of the frame and on this, which is the lever mechanism combines.
  • the two flap closure elements are each provided at the lateral ends with lever-like drive elements connecting a lever mechanism, which are designed in such a way that the flap closure is torsionally rigid by the lever mechanisms being formed by a two-armed lever attached to the shaft , the lever arms of which are coupled to a drive element by a link.
  • the functioning of the flap closure is expediently determined such that the flap closure elements can be pivoted against a closing force for opening, as a result of which the amount of the building material to be removed can be easily metered.
  • an outlet chute which can be moved into an operating position below the emptying opening of the crane silo, is fastened to the frame, which is attached to arms which can be pivoted about a horizontal axis and can be pivoted from an upright non-operating position to the side of the container into a sloping operating position.
  • FIG. 1 to 4 show a crane silo 1 for the transport of pourable building materials such as concrete, gravel, sand or the like, with a container 3 which can be loaded from above through a filling opening 2 and which has a lever mechanism 31 for emptying at the lower end , 32 has openable flap closure 4 and is fastened to a frame 5 for placement on the floor or a scaffold etc.
  • the container 3 has a circular filling opening 2, to which a container jacket 6 connects and ends at the lower container end with an approximately oval or elliptical outlet opening 7.
  • a circular outlet opening would have the consequence that on the one hand the emptying opening of the flap closure could not be used optimally and on the other hand a rectangular outlet opening would have insufficient strength.
  • the outlet opening is designed to deviate from a circular or rectangular shape, such that it comes closest to an oval or an ellipse.
  • the container 3 is formed at the filling opening 2 with a circularly bent steel tube 8, which is welded to the container jacket 6.
  • Fig. 2 shows a bird's eye view of an outlet opening 7 of the container 3 on the long and narrow sides by at least approximately straight intermediate sections 9, 10 which are part of a rectangular shape. Both sections 9, 10 can also be canceled out by irregular curvatures, so that the outlet opening 7 resembles an ellipse.
  • the illustrated jacket lines of the container jacket 6 represent outwardly acting edges 11 which stiffen the container jacket 6; the arrangement of the edges 11 and the course lead to the apparent discharge opening 7.
  • the funnel-shaped container 3 could also have a truncated cone-shaped jacket without edges. Due to the outlet opening 7, the container jacket 6 has jacket lines of different steepness on the circumference, which, however, do not deviate more than 15 ° from a vertical.
  • the wall thickness of the container 3 is 1.25 to 1.75 mm, preferably 1.5 mm, with differences in this regard being correspondingly noticeable in the design of a light crane silo.
  • the steel tube 8 forming a bead-like edge at the filling opening 2 is welded to the container jacket 6, preferably in such a way that the weld seam continuously passes to the inside or outside rounding of the steel tube 8.
  • the container jacket 6 consists of two at least approximately uniform jacket parts 12, 13, which are formed on a surface line in an edge region by a tab 54, which is welded to overlap the edge region of the abutting shell part 13, 12.
  • the flap 54 of a sheath part 12, 13 to be welded to the other sheath part 12, 13 is arranged in a stepped manner on the sheath part 12, 13, so that a correct welding can be carried out on the sheath parts 12, 13, which is double over the width of a flap 54
  • Container wall forms see Fig. 5
  • two opposing reinforced container sections running from top to bottom which are suitable for attaching a suspension device 14 to the upper end, from which the crane silo 1 is suspended for transport, are formed on the container jacket 6.
  • the suspension device 14 is formed on each side of the filling opening 2 from two eyelets 15, 16 with passage openings 17, through which a cable or chain fastening device (not shown), for example a cow's mouth, is passed.
  • a sleeve 18 is attached to the container 3, preferably welded to the container jacket 6.
  • the cuff 18 is configured at the lower end, at least in partial areas on the circumference, by a vertical section 19 which gives the leaking building materials a vertical direction of movement in the edge area, that is to say that the container 3 has a vertical section in front of the outlet opening 7, which at the decisive container shape does not change anything.
  • the sleeve 18 is designed to stiffen the wall on these longer sections and is bent outwards (see FIG. 6).
  • the outlet opening 7, with or without a vertical outlet section 19 on the cuff 18, has a sealing lip 20 acting at its lower end opposite the flap closure 4.
  • the flap closure 4 consists of two oppositely pivotable, interacting flap closure elements 21, 22, each one after the Have pivoting radius curved bottom plate 23, 24, which move along the sealing lip 20 when opening and closing the flap closure 4.
  • the flap lock 4 or the flap lock elements 21, 22 are each mounted on opposite transverse struts 25, 26 of the frame 5, viewed in plan view, pivotable about a horizontal axis 27, 28.
  • lever-like drive elements 29, 30 are provided on the flap closure elements 21, 22, which are each drive-connected to a lever mechanism 31, 32.
  • lever gears 31, 32 which are each assigned to a lateral flap lock end, have two-armed (stretched) levers 33, 34 which are fastened to a shaft 35 and whose lever arms 38, 39 are each connected to the flap lock elements 21, 22 by a link 36, 37 are connected.
  • the shaft in turn is mounted on the longitudinal ends of the frame 5 in bearing blocks 40 and has a fixed operating lever 41 at both ends, with which the flap closure 4 can be opened and closed.
  • the long sides of the frame 5 run at least approximately parallel to the pivot axis of the flap closure 4.
  • the flap closure 4 is opened against a closing force, for which purpose a spring 53 connected to the two-armed (extended) lever 33, 34 and the frame 5 is arranged.
  • the lever gears 31, 32 are protected by a housing 42 against external influences.
  • the crane silo 1 is provided with an outlet chute 43 which can be moved into an operating position below the emptying opening of the flap closure 4 and which is fastened to arms 44, 45 which can be pivoted about a horizontal axis and from an upright out-of-service position next to the container 3 - as in FIGS. 1 and 4 shown - can be pivoted into an inclined operating position.
  • the discharge chute 43 In order to be able to hold the discharge chute 43 in the inoperative position according to FIG.
  • a gas pressure spring 55 is provided in each case, the ends of which are on the one hand attached to the frame 5 and on the other hand connected to an arm 44, 45 in such a way that the discharge chute 43 is also held in the operating position by the gas pressure spring 55 after a pivoting movement.
  • an automatically acting spring could also be used for the same purpose.
  • the frame 5 has four support legs 46 running on the container 3 and fastened to it on one side, which are connected by transverse struts 25, 26, 47, 48 and longitudinal struts 49, 50, 51, so that a box-like structure with high stability is produced, the shaft 35 forms the fourth longitudinal strut.
  • handles 52 are attached to the struts and support legs, which serve to manipulate the crane silo.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Storage Of Harvested Produce (AREA)

Abstract

A mobile silo for the transport and discharge of bulk aggregates has an outer frame with an inverted truncated cone. The cone is essentially circular at the top and converges towards the base and translating to a rectangular outlet and closure flap. The silo is supported within the frame by a tilt mechanism.

Description

Die Erfindung betrifft ein Kransilo für den Transport von schüttbaren Baustoffen, wie Beton, Kies, Sand oder dgl., mit einem oben durch eine Einfüllöffnung beschickbaren Behälter, der zur Entleerung an dem unteren Ende einen mittels Hebelgetriebe öffenbaren Klappenverschluss aufweist und zum Abstellen an einem Gestell befestigt ist.The invention relates to a crane silo for the transport of pourable building materials, such as concrete, gravel, sand or the like. With a container which can be fed through a filling opening at the top and which has a flap closure which can be opened at the lower end by means of a lever mechanism and for storage on a frame is attached.

Kransilos dieser Art sind durch die CH 685831 A5 bekannt und haben sich in der Praxis gegenüber anderen Konstruktionen durch Solidität und Zuverlässigkeit klar behauptet.
Sie werden in Grössen mit einem Aufnahmevermögen von 600, 800, 1200 und 1500 Liter Inhalt auf Baustellen benutzt, dort, wo Turmkrane für grössere Lasten eingesetzt werden. Diese Kransilos weisen aufgrund des relativ grossen Aufnahmevermögens und der dazu notwendigen Stabilität ein entsprechend hohes Eigengewicht auf und können deshalb auf Baustellen geringeren Ausmasses mit fehlender Transportkapazität nicht eingesetzt werden. Denn die leichteren Turmkrane, sog. Schnellmontagekrane weisen bei einer Reichweite von max. 35 m am freien Auslegerende eine Tragkraft von 1000 kg und weniger auf, die nicht ausreicht, um 500 und mehr Litern Beton resp. 1470 kg insgesamt, mit diesen bekannten Kransilos über eine Distanz von mehr als 20 m zu transportieren.
Dabei nimmt ein nach der bekannten Art aus Baustahl gefertigter Kransilo einen zu hohen Gewichtsanteil ein, um den in Fahrmischern zugeführten Beton auf eine rationelle Weise resp. in kurzer Zeit verarbeiten zu können.
Crane silos of this type are known from CH 685831 A5 and have clearly stood their ground over other constructions due to their solidity and reliability.
They are used in sizes with a capacity of 600, 800, 1200 and 1500 liters on construction sites, where tower cranes are used for larger loads. These crane silos have a correspondingly high dead weight due to the relatively large capacity and the necessary stability and can therefore not be used on construction sites of smaller dimensions with a lack of transport capacity. Because the lighter tower cranes, so-called quick assembly cranes, have a range of max. 35 m at the free end of the boom a load capacity of 1000 kg and less, which is not sufficient to 500 or more liters of concrete or. 1470 kg in total, with these well-known crane silos to be transported over a distance of more than 20 m.
Here, a crane silo made according to the known type from structural steel takes up too much a weight in order to the concrete fed in truck mixers in a rational manner. to be able to process in a short time.

Zur Verwirklichung der Vorzüge eines Kransilos nach der CH 685831 A5 stellt sich an die vorliegende Erfindung die Aufgabe nach einer geeigneten Funktionalität und einem relativ niedrigen Eigengewicht mit optimalem Aufnahmevermögen.
D.h., es ist ein Kransilo zu schaffen, das in ungünstigen Umgebungsverhältnissen, wenn es von einer Person beispielsweise von schmalen Standflächen aus zu bedienen ist, einen hohen Bedienungskomfort und vorzügliche funktionelle Einsatzeigenschaften aufweist.
To achieve the advantages of a crane silo according to CH 685831 A5, the object of the present invention is to provide suitable functionality and a relatively low weight with optimal absorption capacity.
This means that a crane silo has to be created which, in unfavorable environmental conditions, if it can be operated by a person, for example from narrow standing areas, has a high level of operating comfort and excellent functional properties.

Erfindungsgemäss ist die Aufgabe dadurch gelöst, dass der Behälter eine etwa kreisrunde Beschickungsöffnung aufweist und in Auslaufrichtung sich trichterförmig verjüngend ausgebildet ist, derart, dass die sich an dem unteren Ende befindende Auslauföffnung des Behälters in den beim Entleeren eine etwa rechteckförmige Oeffnung aufweisenden Klappenverschluss mündet.According to the invention, the object is achieved in that the container has an approximately circular loading opening and is formed in a funnel shape in the outlet direction, such that the outlet opening of the container located at the lower end opens into the flap closure which has an approximately rectangular opening when emptied.

Für eine optimale Nutzung der durch die wenigstens annähernd kreisrunde Beschickungsöffnung, die eine günstige Stabilität vermittelt, und die rechteckige Entleerungsöffnung des Klappenverschlusses mit einer dosierbaren Entnahme von Beton, Sand, Kies oder dgl. aus dem Behälter, ist es wichtig, dass keine Toträume am Auslaufende des Behälters und im Innern des Klappenverschlusses existieren, in denen sich die Baustoffe ansammeln und zur Aushärtung an Teilen des Klappenverschlusses führen, sodass sie nurmehr mit relativ hohem Aufwand und Folgeschäden von den Teilen gelöst werden können.
Dieses Ziel kann dadurch erreicht werden, indem der Behältermantel auf seiner Höhe von einer kreisrunden Beschickungsöffnung in eine etwa ovale oder eliptische Auslauföffnung verlaufend verformt ist, sodass eine große Auslauföffung am Behälter entstehen kann.
Es sollen jedenfalls im Vergleich mit den genannten bekannten Kransilos bezüglich der rechteckigen Entleerungsöffnung an dem Behälter, in Draufsicht betrachtet eckige Kanten vermieden werden, welchen nicht zuletzt durch die zu entleerende, mit hohem Reibungszkoeffizient wirkende Masse an der Auslauföffnung zu starkem Verschleiss an der Behälterinnenwand beansprucht würden.
For optimal use of the at least approximately circular loading opening, which conveys a favorable stability, and the rectangular emptying opening of the flap closure with a metered removal of concrete, sand, gravel or the like from the container, it is important that there are no dead spaces at the outlet end of the container and inside the flap closure exist in which the building materials accumulate and lead to hardening of parts of the flap closure, so that they can only be detached from the parts with relatively great effort and consequential damage.
This goal can be achieved by moving the container jacket at its height from a circular loading opening into an approximately oval or elliptical one The outlet opening is deformed so that a large outlet opening can form on the container.
In any case, in comparison with the known crane silos mentioned with regard to the rectangular emptying opening on the container, when viewed in plan view, angular edges should be avoided, which would not least be subject to excessive wear on the inner wall of the container due to the mass to be emptied, which acts with a high coefficient of friction at the outlet opening ,

Vorzugsweise ist die Auslauföffnung resp. -kante, angepasst an die rechteckige Auslauföffnung des Klappenverschlusses, mit abgerundeten Auslaufkanten ausgebildet. D.h., die Auslauföffnung des Behälters soll der Bewegung des Klappenbodens entsprechend an der Längs- und/oder Schmalseite wenigstens annähernd gerade verlaufende Zwischenabschnitte aufweisen.Preferably, the outlet opening is. -Edge, adapted to the rectangular outlet opening of the flap closure, with rounded outlet edges. That is, the outlet opening of the container should have at least approximately straight intermediate sections on the longitudinal and / or narrow side corresponding to the movement of the flap bottom.

Eine vortreffliche Auslauföffnung des Behälters kann dadurch erreicht werden, wenn der Uebergang von der Längs- auf die Schmalseite der Auslauföffnung jeweils als gekrümmter Abschnitt ausgebildet ist, sodass eine optimale Abdichtung durch den Klappenverschluss an der Auslauföffnung des Behälters 3 entstehen kann.An excellent outlet opening of the container can be achieved if the transition from the longitudinal side to the narrow side of the outlet opening is designed as a curved section, so that an optimal seal can be created by the flap closure at the outlet opening of the container 3.

Es lassen sich aufgrund der Behälterform günstige Auslauf- resp. Entleerungsverhältnisse schaffen, da der Kransilo am gesamten Umfang mit relativ steilen Wandabschnitten, die gegenüber einer Senkrechten einen Winkel von 15° und weniger einschliessen, ausgebildet werden kann. Ein schädliches Klopfen an die Wand des Behälters wegen unvollstädiger Entleerung oder Brückenbildung kann somit vermieden werden.Due to the shape of the container, it can be conveniently Create emptying conditions, because the crane silo can be formed on the entire circumference with relatively steep wall sections that enclose an angle of 15 ° and less with respect to a vertical. A harmful knock on the wall of the container due to incomplete emptying or bridging can thus be avoided.

Zur Verstärkung des Behälters gegen Bersten des durch die Füllung entstehenden hohen Druckes auf die Behälterwand, kann der Behälter durch Kanten an dem Mantel, die von der Einfüll- zur Auslauföffnung verlaufen, verstärkt werden. Dies entspricht einer Optimierungsmassnahme zur Erzielung eines geringen Gewichts des Kransilos bei Verwendung von relativ dünnem Stahlblech.To reinforce the container against bursting of the high pressure created by the filling on the container wall, the container can by edges on the Coat that run from the filling to the outlet opening are reinforced. This corresponds to an optimization measure to achieve a low weight of the crane silo when using relatively thin steel sheet.

Es wird vorgeschlagen, dass die Mantelblechdicke des Behälters 1,25 bis 1,75 mm, vorzugsweise 1,5 mm aufweist, die zur Optimierung gegen Verschleiss, für eine hohe Zuverlässigkeit und ein günstiges Eigengewicht beiträgt sowie den Gebrauch handelsüblicher Blechtafel ermöglicht.It is proposed that the jacket sheet thickness of the container be 1.25 to 1.75 mm, preferably 1.5 mm, which contributes to the optimization against wear, for high reliability and a favorable weight, and enables the use of commercially available sheet metal.

Zweckmässigerweise kann der Behälter am Aussenumfang mit einem Verstärkungsring zwischen Beschickungs- und Auslauföffnung versehen sein, der ohne spürbare Eigengewichtzunahme den relativ hohen Leibungsdruck aufzunehmen vermag.The container can expediently be provided on the outer circumference with a reinforcement ring between the loading and discharge opening, which is able to absorb the relatively high reveal pressure without noticeably increasing its own weight.

Wenn die Einfüllöffnung des Behälters durch einen wulstartigen Rand ausgebildet ist, können beim Auftreffen des Kransilos an festen Objekten Schäden vermieden und dem Behälter eine grössere Steifigkeit und Stabilität vermittelt werden.If the filling opening of the container is formed by a bead-like edge, damage to solid objects can be avoided when the crane silo strikes and the container can be given greater rigidity and stability.

Der wulstartige Rand kann auf eine einfache Art durch ein mit dem Behältermantel durch Schweissen verbundenes Rohr gebildet sein.The bead-like edge can be formed in a simple manner by a tube connected to the container jacket by welding.

Es erweist sich bei der Behälterform als wesentlicher Vorteil, wenn der Behälter aus zwei etwa gleichförmigen Mantelteilen gebildet ist, sodass eine Fertigung vereinfacht werden kann.In the case of the container shape, it proves to be an essential advantage if the container is formed from two approximately uniform jacket parts, so that production can be simplified.

Da die Mantelteile zu einem Behälter verschweisst werden, ist es günstig, wenn erstere wenigstens in einem Randbereich entlang einer Mantelteile überstehenden Lappen aufweisen.Since the jacket parts are welded to form a container, it is advantageous if the former have tabs projecting along at least one edge region along a jacket part.

Zur Verbesserung der Festigkeit des Behälters können die partiell eine doppelte Behälterwand bildenden Lappen an dem oberen Behälterende zur Befestigung einer Aufhängevorrichtung des Silos ausgebildet sein, beispielsweise durch Aufhängeösen.
Wenn oberhalb der Auslauföffnung des Behälters am Umfang eine Manschette durch Schweissen aufgebracht wird, dann kann diese zur Stabilität des Behälters über diesen Bereich hinaus verhelfen.
To improve the strength of the container, the flaps, which partially form a double container wall, can be formed on the upper end of the container for fastening a suspension device of the silo, for example by suspension eyes.
If a cuff is applied to the circumference above the outlet opening of the container by welding, then this can help the stability of the container beyond this area.

Der einfachheithalber bildet die Auslauföffnung des Behälters eine Dichtungslippe gegenüber dem Klappenverschluss, die gleichzeitig als eine Verstärkung des Randbereichs gegen Verschleiss dienen wird.For the sake of simplicity, the outlet opening of the container forms a sealing lip opposite the flap closure, which will also serve to reinforce the edge area against wear.

Vorteilhaft ist der Klappenverschluss mit an dem Gestell angeordneten, mittels Bedienungshebel(n) betätigbaren Hebelgetrieben antriebsverbunden, die eine Betätigung resp. die Bedienbarkeit des Klappenverschlusses aufgrund von Untersetzungsverhältnissen erleichtert.The flap lock is advantageously drive-connected to lever gears which are arranged on the frame and can be actuated by means of the operating lever (s) and which actuate or. the ease of use of the flap lock due to reduction ratios.

Das Gestell, an dem der Behälter befestigt ist, weist in Draufsicht betrachtet vorzugsweise eine eine rechteckige Form auf, deren Längsseite etwa parallel zur Schwenkachse zweier den Klappenverschluss bildenden Klappenverschlusselementen verläuft; d.h., der Behälter ist auf seiner ganzen Höhe gegen Aufprallschäden geschützt, einerseits durch den wulstartigen oberen Rand der Einfüllöffnung und andererseits durch das Gestell darunter. Dennoch übersteht das Gestell den Behälter seitlich nicht.When viewed from above, the frame to which the container is attached preferably has a rectangular shape, the longitudinal side of which extends approximately parallel to the pivot axis of two flap closure elements forming the flap closure; i.e., the entire height of the container is protected against impact damage, on the one hand by the bead-like upper edge of the filling opening and on the other hand by the frame underneath. Nevertheless, the frame does not protrude laterally from the container.

Damit die Oeffnungs- und Schliesskräfte an dem Klappenverschluss verteilt werden können, ist zum Betätigen der beiden Klappenverschlusselemente an den seitlichen Enden des Klappenverschlusses entlang der Längsseite des Gestells und an diesem zweifach gelagert eine Welle vorgesehen, die die Hebelgetriebe verbindet.So that the opening and closing forces can be distributed on the flap lock, a shaft is provided for actuating the two flap lock elements on the lateral ends of the flap lock along the long side of the frame and on this, which is the lever mechanism combines.

Es erweist sich als einfache Vorrichtung, wenn die beiden Klappenverschlusselemente an den seitlichen Enden jeweils mit ein Hebelgetriebe verbindenden, hebelartigen Antriebselementen versehen sind, die derart ausgebildet sind, dass der Klappenverschluss verwindungssteif ist, indem die Hebelgetriebe durch einen an der Welle befestigten zweiarmigen Hebel ausgebildet sind, dessen Hebelarme durch einen Lenker mit jeweils einem Antriebselement gekoppelt sind.It proves to be a simple device if the two flap closure elements are each provided at the lateral ends with lever-like drive elements connecting a lever mechanism, which are designed in such a way that the flap closure is torsionally rigid by the lever mechanisms being formed by a two-armed lever attached to the shaft , the lever arms of which are coupled to a drive element by a link.

Es ist einfach, wenn die einem Hebelgetriebe zugeordneten Antriebselemente jeweils an einer gemeinsamen Schwenkachse gelagert sind.It is easy if the drive elements assigned to a lever mechanism are each mounted on a common pivot axis.

Die Funktionsweise des Klappenverschlusses ist zweckmässig so festgelegt, dass die Klappenverschlusselemente zum Oeffnen gegen eine Schliesskraft verschwenkbar sind, wodurch die Menge des zu entnehmenden Baustoffes leicht dosierbar ist.The functioning of the flap closure is expediently determined such that the flap closure elements can be pivoted against a closing force for opening, as a result of which the amount of the building material to be removed can be easily metered.

Es kann u.a. zur seitlichen Beschickung von Hohlräumen eine in eine unterhalb der Entleerungsöffnung des Kransilos in eine Betriebslage versetzbare Auslaufschurre an dem Gestell befestigt sein, die an um eine horizontale Achse verschwenkbaren Armen befestigt ist und aus einer aufrechten Ausserbetriebslage seitlich des Behälters in eine schräg abfallende Betriebslage schwenkbar ist.Among other things, For lateral loading of cavities, an outlet chute which can be moved into an operating position below the emptying opening of the crane silo, is fastened to the frame, which is attached to arms which can be pivoted about a horizontal axis and can be pivoted from an upright non-operating position to the side of the container into a sloping operating position.

Es erweist sich als einfach und bietet sich als günstige Weiterausgestaltung an, wenn die Achsen der schwenkbaren Klappenverschlusselemente zur Lagerung der Auslaufschurre benutzt werden können.It proves to be simple and offers a favorable further development if the axes of the swiveling flap closure elements can be used to mount the outlet chute.

Anschliessend wird die Erfindung unter Bezugnahme auf die Zeichnung, auf die bezüglich aller in der Beschreibung nicht näher erwähnten Einzelheiten verwiesen wird, anhand eines Ausführungsbeispiels beschrieben. In der Zeichnung zeigen:

Fig. 1
einen erfindungsgemässen Kransilo in räumlicher Darstellung,
Fig. 2
eine Draufsicht auf den in Fig. 1 gezeigten Kransilo,
Fig. 3
eine Ansicht der Bedienerseite des Kransilos,
Fig. 4
eine Seitenansicht des in Fig. 3 dargestellten Kransilos,
Fig. 5
einen Schnitt durch den Behältermantel gemäss V - V in Fig. 3 und
Fig. 6
einen Schnitt durch den Behältermantel gemäss VI - VI in Fig. 3.
The invention is then referred to with reference to the drawing, to which all details not mentioned in the description are referred is described using an exemplary embodiment. The drawing shows:
Fig. 1
a crane silo according to the invention in a spatial representation,
Fig. 2
2 shows a plan view of the crane silo shown in FIG. 1,
Fig. 3
a view of the operator side of the crane silo,
Fig. 4
3 shows a side view of the crane silo shown in FIG. 3,
Fig. 5
a section through the container jacket according to V - V in Fig. 3 and
Fig. 6
3 shows a section through the container jacket according to VI - VI in FIG. 3.

Die Fig. 1 bis 4 zeigen einen Kransilo 1 für den Transport von schüttfähigen Baustoffen wie beispielsweise Beton, Kies, Sand oder dgl., mit einem von oben durch eine Einfüllöffnung 2 beschickbaren Behälter 3, der zur Entleerung an dem unteren Ende einen mittels Hebelgetrieben 31, 32 öffenbaren Klappenverschluss 4 aufweist und zum Abstellen auf dem Boden oder einem Gerüst etc. an einem Gestell 5 befestigt ist.
Der Behälter 3 weist eine kreisrunde Einfüllöffnung 2 auf, an die ein Behältermantel 6 anschliesst und an dem unteren Behälterende mit einer etwa ovalen oder eliptischen Auslauföffnung 7 endet. Eine kreisrunde Auslauföffnung hätte zur Folge, dass einerseits die Entleerungsöffnung des Klappenverschlusses nicht optimal genutzt werden könnte und andererseits eine rechteckige Auslauföffnung eine unzureichende Festigkeit aufweisen würde. Deshalb ist die Auslauföffnung von einer kreisrunden oder rechteckigen Form abweichend ausgestaltet, derart, dass sie einem Oval oder einer Elipse wohl am nächsten kommt. Das heisst jedoch nicht, dass die Auslauföffnung 7 in Draufsicht betrachtet eine reine Oval- oder Elipsenform aufzuweisen hat, um der Erfindung gerecht zu werden.
Zur Verstärkung gegen eine Verformung ist der Behälter 3 an der Einfüllöffnung 2 mit einem kreisrund gebogenen Stahlrohr 8 ausgebildet, das mit dem Behältermantel 6 verschweisst ist.
Fig. 2 zeigt aus der Vogelschau eine Auslauföffnung 7 des Behälters 3 an der Längs- und der Schmalseite durch wenigstens annähernd gerade verlaufende Zwischenabschnitte 9, 10 ausgebildet, die Teil einer Rechteckform sind. Beide Abschnitte 9, 10 können durch unregelmässige Krümmungen auch aufgehoben werden, sodass die Auslauföffnung 7 einer Elipse gleicht.
Die veranschaulichten Mantellinien des Behältermantels 6 stellen nach aussen wirkende Kanten 11 dar, die den Behältermantel 6 versteifen; die Anordnungsweise der Kanten 11 und der Verlauf führen zu der ersichtlichen Auslauöffnung 7. Selbstverständlich könnte der trichterförmige Behälter 3 auch einen kegelstumpfförmigen Mantel ohne Kanten aufweisen.
Der Behältermantel 6 weist aufgrund der Auslauföffnung 7 unterschiedlich steile Mantellinien am Umfang auf, die jedoch nicht mehr als 15° von einer Senkrechten abweichen.
Idealerweise beträgt die Wandstärke des Behälters 3 1,25 bis 1,75 mm, vorzugsweise 1,5 mm, wobei sich diesbezügliche Unterschiede bei der Ausgestaltung eines leichten Kransilos entsprechend bemerkbar machen.
Nicht dargestellt ist ein Verstärkungsring zwischen Einfüll- 2 und Auslauföffnung 7 am Umfang des Behälters 3, der insbesondere beim Befüllen des Behälters 3 den hohen Leibungsdruck teilweise aufnimmt.
Das an der Einfüllöffnung 2 einen wulstartigen Rand bildende Stahlrohr 8 ist mit dem Behältermantel 6 verschweisst, vorzugsweise so, dass die Schweissnaht an die Innen- oder Aussenrundung des Stahlrohres 8 stufenlos übergeht.
Der Behältermantel 6 besteht aus zwei zumindest annähernd gleichförmigen Mantelteilen 12, 13, die anschliessend an eine Mantellinie in einem Randbereich durch einen Lappen 54 ausgebildet sind, der mit dem Randbereich des anstossenden Mantelteils 13, 12 überlappend verschweisst ist. Der mit dem anderen Mantelteil 12, 13 zu verschweissende Lappen 54 eines Mantelteils 12, 13 ist an dem Mantelteil 12, 13 abgestuft angeordnet, sodass eine vorschriftsmässige Schweissung an den Mantelteilen 12, 13 durchgeführt werden kann, die über die Breite eines Lappens 54 eine doppelte Behälterwand bildet (siehe Fig. 5).
Es entstehen auf diese Weise an dem Behältermantel 6 zwei sich gegenüberliegende, von oben nach unten verlaufende verstärkte Behälterabschnitte, die sich dazu eignen, dass an dem oberen Ende eine Aufhängevorrichtung 14 befestigt ist, an denen der Kransilo 1 zum Transport aufgehängt wird. Die Aufhängevorrichtung 14 ist auf jeder Seite der Einfüllöffnung 2 aus zwei Oesen 15, 16 mit Durchtrittsöffnungen 17 gebildet, durch die eine Seil- oder Kettenbefestigungsvorrichtung (nicht dargestellt), beispielsweise ein Kuhmaul, hindurchgeführt wird.
Oberhalb der Auslauföffnung 7 ist an dem Behälter 3 eine diesen einfassende Manschette 18 befestigt, vorzugsweise mit dem Behältermantel 6 verschweisst.
Die Manschette 18 ist am unteren Ende, zumindest in Teilbereichen am Umfang, durch einen senkrechten Abschnitt 19 ausgestaltet, der den auslaufenden Baustoffen im Randbereich eine senkrechte Bewegungsrichtung verleiht, d.h., dass der Behälter 3 vor der Auslauföffnung 7 einen senkrechten Abschnitt aufweist, der an der massgebenden Behälterform jedoch nichts ändert.
Zumindest an den Zwischenabschnitten 9 der Auslauföffnung 7 resp. darüber hinaus ist die Manschette 18 zur Versteifung der Wand auf diesen längeren Abschnitten nach aussen abgekröft ausgebildet (siehe Fig. 6).
Die Auslauföffnung 7, ob mit oder ohne senkrechtem Auslaufabschnitt 19 an der Manschette 18, weist an ihrem unteren Ende eine gegenüber dem Klappenverschluss 4 wirkende Dichtungslippe 20 auf.
Der Klappenverschluss 4 besteht aus zwei entgegengesetzt schwenkbaren, zusammenwirkenden Klappenverschlusselementen 21, 22, die jeweils ein nach dem Schwenkradius gebogenes Bodenblech 23, 24 aufweisen, welche beim Oeffnen und Schliessen des Klappenverschlusses 4 sich entlang der Dichtungslippe 20 bewegen.
Der Klappenverschluss 4 bzw. die Klappenverschlusselemente 21, 22 sind jeweils an sich gegenüberliegenden Querstreben 25, 26 des in Draufsicht betrachtet rechteckigen Gestells 5 um eine horizontale Achse 27, 28 schwenkbar gelagert. Hierzu sind an den Klappenverschlusselementen 21, 22 beidseits hebelartige Antriebselemente 29, 30 vorgesehen, die mit jeweils einem Hebelgetriebe 31, 32 antriebsverbunden sind. Diese Hebelgetriebe 31, 32, die jeweils einem seitlichen Klappenverschlussende zugeordnet sind, weisen zweiarmige (gestreckte) Hebel 33, 34 auf, die an einer Welle 35 befestigt und deren Hebelarme 38, 39 durch jeweils einen Lenker 36, 37 mit den Klappenverschlusselementen 21, 22 verbunden sind.
Die Welle wiederum ist an den Längsenden des Gestells 5 in Lagerböcken 40 gelagert und besitzt beidenends einen fest angeordneten Bedienungshebel 41, mit denen der Klappenverschluss 4 öffen- und schliessbar ist.
Die Längsseiten des Gestells 5 verlaufen wenigstens annähernd parallel zur Schwenkachse des Klappenverschlusses 4.
Das Oeffnen des Klappenverschlusses 4 erfolgt gegen eine Schliesskraft, wozu eine mit dem zweiarmigen (gestreckten) Hebel 33, 34 und dem Gestell 5 verbundene Feder 53 angeordnet ist.
Die Hebelgetriebe 31, 32 sind von einem Gehäuse 42 gegen äussere Einflüsse geschützt.
Im übrigen ist der Kransilo 1 mit einer unterhalb der Entleerungsöffnung des Klappenverschlusses 4 in eine Betriebslage versetzbaren Auslaufschurre 43 versehen, die an um eine horizontale Achse verschwenkbaren Armen 44, 45 befestigt ist und aus einer aufrechten Ausserbetriebslage neben dem Behälter 3 -wie in den Fig. 1 und 4 gezeigt- in eine schräg abfallende Betriebslage schwenkbar ist.
Um die Auslaufschurre 43 in der Ausserbetriebslage gemäss Fig. 4 halten zu können, ist jeweils eine Gasdruckfeder 55 vorgesehen, die mit den Enden einerseits an dem Gestell 5 befestigt und andererseits mit einem Arm 44, 45 verbunden ist, derart, dass die Auslaufschurre 43 nach einer Schwenkbewegung von der Gasdruckfeder 55 auch in der Betriebslage gehalten wird.
Selbstverständlich könnte zum gleichen Zweck auch eine selbsttätig wirkende Feder verwendet werden.
Das Gestell 5 weist vier an den Behälter 3 verlaufende und an diesem einseitig befestigte Stützbeine 46 auf, die durch Quer- 25, 26, 47, 48 und Längsstreben 49, 50, 51 verbunden sind, so dass ein kastenähnliches Gebilde mit hoher Standfestigkeit entsteht, wobei die Welle 35 die vierte Längsstrebe bildet.
Weiterhin sind an den Streben und Stützbeinen Handgriffe 52 befestigt, die der Manipulation des Kransilos dienen.
1 to 4 show a crane silo 1 for the transport of pourable building materials such as concrete, gravel, sand or the like, with a container 3 which can be loaded from above through a filling opening 2 and which has a lever mechanism 31 for emptying at the lower end , 32 has openable flap closure 4 and is fastened to a frame 5 for placement on the floor or a scaffold etc.
The container 3 has a circular filling opening 2, to which a container jacket 6 connects and ends at the lower container end with an approximately oval or elliptical outlet opening 7. A circular outlet opening would have the consequence that on the one hand the emptying opening of the flap closure could not be used optimally and on the other hand a rectangular outlet opening would have insufficient strength. Therefore, the outlet opening is designed to deviate from a circular or rectangular shape, such that it comes closest to an oval or an ellipse. However, this does not mean that the outlet opening 7, when viewed in plan view, has to have a pure oval or elliptical shape in order to do justice to the invention.
To reinforce deformation, the container 3 is formed at the filling opening 2 with a circularly bent steel tube 8, which is welded to the container jacket 6.
Fig. 2 shows a bird's eye view of an outlet opening 7 of the container 3 on the long and narrow sides by at least approximately straight intermediate sections 9, 10 which are part of a rectangular shape. Both sections 9, 10 can also be canceled out by irregular curvatures, so that the outlet opening 7 resembles an ellipse.
The illustrated jacket lines of the container jacket 6 represent outwardly acting edges 11 which stiffen the container jacket 6; the arrangement of the edges 11 and the course lead to the apparent discharge opening 7. Of course, the funnel-shaped container 3 could also have a truncated cone-shaped jacket without edges.
Due to the outlet opening 7, the container jacket 6 has jacket lines of different steepness on the circumference, which, however, do not deviate more than 15 ° from a vertical.
Ideally, the wall thickness of the container 3 is 1.25 to 1.75 mm, preferably 1.5 mm, with differences in this regard being correspondingly noticeable in the design of a light crane silo.
Not shown is a reinforcing ring between the filling opening 2 and the outlet opening 7 on the circumference of the container 3, which partially absorbs the high reveal pressure, particularly when the container 3 is being filled.
The steel tube 8 forming a bead-like edge at the filling opening 2 is welded to the container jacket 6, preferably in such a way that the weld seam continuously passes to the inside or outside rounding of the steel tube 8.
The container jacket 6 consists of two at least approximately uniform jacket parts 12, 13, which are formed on a surface line in an edge region by a tab 54, which is welded to overlap the edge region of the abutting shell part 13, 12. The flap 54 of a sheath part 12, 13 to be welded to the other sheath part 12, 13 is arranged in a stepped manner on the sheath part 12, 13, so that a correct welding can be carried out on the sheath parts 12, 13, which is double over the width of a flap 54 Container wall forms (see Fig. 5).
In this way, two opposing reinforced container sections running from top to bottom, which are suitable for attaching a suspension device 14 to the upper end, from which the crane silo 1 is suspended for transport, are formed on the container jacket 6. The suspension device 14 is formed on each side of the filling opening 2 from two eyelets 15, 16 with passage openings 17, through which a cable or chain fastening device (not shown), for example a cow's mouth, is passed.
Above the outlet opening 7, a sleeve 18 is attached to the container 3, preferably welded to the container jacket 6.
The cuff 18 is configured at the lower end, at least in partial areas on the circumference, by a vertical section 19 which gives the leaking building materials a vertical direction of movement in the edge area, that is to say that the container 3 has a vertical section in front of the outlet opening 7, which at the decisive container shape does not change anything.
At least at the intermediate sections 9 of the outlet opening 7, respectively. in addition, the sleeve 18 is designed to stiffen the wall on these longer sections and is bent outwards (see FIG. 6).
The outlet opening 7, with or without a vertical outlet section 19 on the cuff 18, has a sealing lip 20 acting at its lower end opposite the flap closure 4.
The flap closure 4 consists of two oppositely pivotable, interacting flap closure elements 21, 22, each one after the Have pivoting radius curved bottom plate 23, 24, which move along the sealing lip 20 when opening and closing the flap closure 4.
The flap lock 4 or the flap lock elements 21, 22 are each mounted on opposite transverse struts 25, 26 of the frame 5, viewed in plan view, pivotable about a horizontal axis 27, 28. For this purpose, lever-like drive elements 29, 30 are provided on the flap closure elements 21, 22, which are each drive-connected to a lever mechanism 31, 32. These lever gears 31, 32, which are each assigned to a lateral flap lock end, have two-armed (stretched) levers 33, 34 which are fastened to a shaft 35 and whose lever arms 38, 39 are each connected to the flap lock elements 21, 22 by a link 36, 37 are connected.
The shaft in turn is mounted on the longitudinal ends of the frame 5 in bearing blocks 40 and has a fixed operating lever 41 at both ends, with which the flap closure 4 can be opened and closed.
The long sides of the frame 5 run at least approximately parallel to the pivot axis of the flap closure 4.
The flap closure 4 is opened against a closing force, for which purpose a spring 53 connected to the two-armed (extended) lever 33, 34 and the frame 5 is arranged.
The lever gears 31, 32 are protected by a housing 42 against external influences.
In addition, the crane silo 1 is provided with an outlet chute 43 which can be moved into an operating position below the emptying opening of the flap closure 4 and which is fastened to arms 44, 45 which can be pivoted about a horizontal axis and from an upright out-of-service position next to the container 3 - as in FIGS. 1 and 4 shown - can be pivoted into an inclined operating position.
In order to be able to hold the discharge chute 43 in the inoperative position according to FIG. 4, a gas pressure spring 55 is provided in each case, the ends of which are on the one hand attached to the frame 5 and on the other hand connected to an arm 44, 45 in such a way that the discharge chute 43 is also held in the operating position by the gas pressure spring 55 after a pivoting movement.
Of course, an automatically acting spring could also be used for the same purpose.
The frame 5 has four support legs 46 running on the container 3 and fastened to it on one side, which are connected by transverse struts 25, 26, 47, 48 and longitudinal struts 49, 50, 51, so that a box-like structure with high stability is produced, the shaft 35 forms the fourth longitudinal strut.
Furthermore, handles 52 are attached to the struts and support legs, which serve to manipulate the crane silo.

Claims (24)

Kransilo (1) für den Transport von schüttbaren Baustoffen, wie Beton, Kies, Sand oder dgl., mit einem oben durch eine Einfüllöffnung (2) beschickbaren Behälter (3), der zur Entleerung an dem unteren Ende einen mittels Hebelgetriebe (31, 32) öffenbaren Klappenverschluss (4) aufweist und zum Abstellen an einem Gestell (5) befestigt ist, dadurch gekennzeichnet, dass der Behälter (3) eine etwa kreisrunde Einfüllöffnung (2) aufweist und in Auslaufrichtung sich trichterförmig verjüngend ausgebildet ist, derart, dass die sich an dem unteren Ende befindende Auslauföffnung (7) des Behälters in den eine etwa rechteckförmige Entleerungsöffnung aufweisenden Klappenverschluss (4) mündet.Crane silo (1) for the transport of pourable building materials, such as concrete, gravel, sand or the like, with a container (3) which can be fed through a filling opening (2) at the top and which has a lever mechanism (31, 32 ) has an openable flap closure (4) and is attached to a frame (5) for storage, characterized in that the container (3) has an approximately circular filler opening (2) and is formed in a funnel-shaped manner in the outlet direction in such a way that the at the lower end of the outlet opening (7) of the container opens into the flap closure (4) which has an approximately rectangular emptying opening. Silo nach Anspruch 1, dadurch gekennzeichnet, dass der Behältermantel (6) von einer runden Einfüllöffnung (2) in eine etwa ovale oder eliptische Auslauföffnung (7) übergeht.Silo according to claim 1, characterized in that the container jacket (6) merges from a round filling opening (2) into an approximately oval or elliptical outlet opening (7). Silo nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Auslauföffnung (7) des Behälters (3) an der Längs- und/oder Schmalseite wenigstens annähernd gerade verlaufende Zwischenabschnitte (9, 10) eines Rechtecks aufweist.Silo according to claim 1 or 2, characterized in that the outlet opening (7) of the container (3) has at least approximately straight intermediate sections (9, 10) of a rectangle on the longitudinal and / or narrow side. Silo nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass der Uebergang von der Längs- auf die Schmalseite der Auslauföffnung (7) jeweils als gekrümmter Abschnitt ausgebildet ist.Silo according to claim 2 or 3, characterized in that the transition from the longitudinal to the narrow side of the outlet opening (7) is in each case designed as a curved section. Silo nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Mantellinien des Behälters (3) zur Senkrechten einen Winkel von maximal 15° bilden.Silo according to one of claims 1 to 4, characterized in that the surface lines of the container (3) form an angle of at most 15 ° to the vertical. Silo nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der Behältermantel (69 am Umfang verteilt, von der Einfüllzur Auslauföffnung (7) verlaufende Kanten (11) aufweist.Silo according to one of claims 1 to 5, characterized in that the container jacket (69 distributed around the circumference has edges (11) running from the filler to the outlet opening (7). Silo nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, das die Wandstärke des Behältermantels (6) zwischen 1,3 und 1,7 mm beträgt.Silo according to one of claims 1 to 6, characterized in that the wall thickness of the container jacket (6) is between 1.3 and 1.7 mm. Silo nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass der Behälter (3) zwischen Einfüll- (2) und Auslaufsöffnung (7) am Umfang einen Verstärkungsring aufweist.Silo according to one of claims 1 to 7, characterized in that the container (3) between the filling (2) and outlet opening (7) has a reinforcing ring on the circumference. Silo nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die Einfüllöffnung (2) durch einen wulstartigen Rand ausgebildet ist.Silo according to one of claims 1 to 8, characterized in that the filling opening (2) is formed by a bead-like edge. Silo nach Anspruch 9, dadurch gekennzeichnet, dass der wulstartige Rand durch ein mit dem Behältermantel (6) durch Schweissen verbundenes Rohr (8) gebildet ist.Silo according to claim 9, characterized in that the bead-like edge is formed by a tube (8) connected to the container jacket (6) by welding. Silo nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass der Behälter (3) aus zwei etwa gleichförmigen Mantelteilen (12, 13) gebildet ist.Silo according to one of claims 1 to 10, characterized in that the container (3) is formed from two approximately uniform jacket parts (12, 13). Silo nach Anspruch 11, dadurch gekennzeichnet, dass wenigstens ein entlang einer Mantellinie verlaufender Randbereich des Mantelteils (12, 13) durch einen mit dem anderen Mantelteil (13, 12) verschweissbaren Lappen (54) ausgebildet ist.Silo according to claim 11, characterized in that at least one edge region of the casing part (12, 13) running along a casing line is formed by a tab (54) which can be welded to the other casing part (13, 12). Silo nach Anspruch 12, dadurch gekennzeichnet, dass an dem oberen Behälterende der durch den Lappen (54) gebildeten doppelten Behälterwand eine Aufhängevorrichtung (14), beispielsweise aus sich gegenüberstehenden Oesen (15, 16) befestigt ist.Silo according to claim 12, characterized in that a hanging device (14), for example of opposing eyelets (15, 16), is attached to the upper end of the container of the double container wall formed by the tab (54). Silo nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, dass oberhalb der Auslauföffnung (7) des Behälters (3) an dessen Umfang eine Manschette (18) befestigt ist.Silo according to one of claims 1 to 13, characterized in that a sleeve (18) is attached above the outlet opening (7) of the container (3) on its circumference. Silo nach Anspruch 14, dadurch gekennzeichnet, dass die Manschette (18) am unteren Ende einen senkrechten Auslaufabschnitt (19) aufweist.Silo according to claim 14, characterized in that the sleeve (18) has a vertical outlet section (19) at the lower end. Silo nach Anspruch 14 oder 15, dadurch gekennzeichnet, dass die Auslauföffnung (7) des Behälters (3) gegenüber dem Klappenverschluss (4) als eine Dichtungslippe (20) wirkend ausgebildet ist.Silo according to claim 14 or 15, characterized in that the outlet opening (7) of the container (3) is designed to act as a sealing lip (20) with respect to the flap closure (4). Silo nach einem der Ansprüche 1 bis 16, dadurch gekennzeichne, dass der Klappenverschluss (4) mit an dem Gestell (5) angeordneten, mittels wenigstens eines Bedienungshebels (41) betätigbaren Hebelgetrieben (31, 32) antriebsverbunden ist.Silo according to one of Claims 1 to 16, characterized in that the flap closure (4) is arranged on the frame (5) by means of at least one operating lever (41) actuatable lever gears (31, 32) is drive-connected. Silo nach Anspruch 17, dadurch gekennzeichnet, dass das Gestell (5) in Draufsicht betrachtet eine rechteckige Form aufweist, deren Längsseite wenigstens annähernd parallel zur Schwenkachse des Klappenverschlusses (4) verläuft.Silo according to claim 17, characterized in that the frame (5) viewed in plan view has a rectangular shape, the long side of which runs at least approximately parallel to the pivot axis of the flap closure (4). Silo nach einem der Ansprüche 17 oder 18, dadurch gekennzeichnet, dass die Hebelgetriebe (31, 32) durch eine gemeinsame, entlang der Längsseite des Gestells (5) angeordnete Welle (35) verbunden sind.Silo according to one of claims 17 or 18, characterized in that the lever gears (31, 32) are connected by a common shaft (35) arranged along the longitudinal side of the frame (5). Silo nach einem der Ansprüche 17 bis 19, mit einem Klappenverschluss (4) aus zwei schwenkbaren Klappenverschlusselementen (21, 22), die an den seitlichen Enden jeweils ein mit einem Hebelgetriebe (31, 32) verbundenes hebelartiges Antriebselement (29, 30) aufweisen, dadurch gekennzeichnet, dass die Hebelgetriebe (31, 32) durch jeweils einen an der Welle (35) befestigten zweiarmigen Hebel (33, 34) ausgebildet sind, dessen Hebelarme (38, 39) durch einen Lenker (36, 37) mit jeweils einem Antriebselement (29, 30) gekoppelt sind.Silo according to one of claims 17 to 19, with a flap closure (4) made of two pivotable flap closure elements (21, 22), each having a lever-like drive element (29, 30) connected to a lever mechanism (31, 32) at the lateral ends, characterized in that the lever gears (31, 32) are each formed by a two-armed lever (33, 34) attached to the shaft (35), the lever arms (38, 39) by a link (36, 37) each having a drive element (29, 30) are coupled. Silo nach Anspruch 20, dadurch gekennzeichnet, dass die einem Hebelgetriebe (31, 32) zugeordneten Antriebselemente (29, 30) jeweils an einer gemeinsamen Schwenkachse (27, 28) gelagert sind.Silo according to claim 20, characterized in that the drive elements (29, 30) assigned to a lever mechanism (31, 32) are each mounted on a common pivot axis (27, 28). Silo nach einem der Ansprüche 20 und 21, dadurch gekennzeichnet, dass die Klappenverschlusselemente (21, 22) zum Oeffnen des Klappenverschlusses (4) gegen eine Schliesskraft verschwenkbar sind.Silo according to one of claims 20 and 21, characterized in that the flap closure elements (21, 22) can be pivoted against a closing force in order to open the flap closure (4). Silo nach einem der Ansprüche 1 bis 22, mit einer in eine unterhalb der Entleerungsöffnung des Silos (1) in eine Betriebslage versetzbaren Auslaufschurre (43), dadurch gekennzeichnet, dass die Auslaufschurre (43) an um eine horizontale Achse verschwenkbaren Armen (44, 45) befestigt ist und aus einer aufrechten Ausserbetriebslage neben dem Behälter (3) in eine schräg abfallende Betriebslage schwenkbar ist.Silo according to one of claims 1 to 22, with an outlet chute (43) which can be set into an operating position below the emptying opening of the silo (1), characterized in that the outlet chute (43) has arms (44, 45) which can be pivoted about a horizontal axis ) is attached and can be swiveled from an upright out-of-service position next to the container (3) into a sloping operating position. Silo nach Anspruch 23, dadurch gekennzeichnet, dass die Schwenkachse (27, 28) der Klappenverschlusselemente (21, 22) zur Lagerung der Auslaufschurre (43) ausgebildet ist.Silo according to claim 23, characterized in that the pivot axis (27, 28) of the flap closure elements (21, 22) is designed for mounting the outlet chute (43).
EP20030405456 2003-06-22 2003-06-22 Crane bucket for the conveying of construction material Expired - Lifetime EP1491703B1 (en)

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EP20030405456 EP1491703B1 (en) 2003-06-22 2003-06-22 Crane bucket for the conveying of construction material

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EP20030405456 EP1491703B1 (en) 2003-06-22 2003-06-22 Crane bucket for the conveying of construction material

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EP1491703B1 EP1491703B1 (en) 2013-08-21

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1830017A1 (en) * 2006-03-02 2007-09-05 Obrist Baugeräte AG Crane bucket for transport of pourable construction material, like concrete, gravel, sand
CN101929246A (en) * 2010-08-30 2010-12-29 中国一冶集团有限公司 Method for conveying concrete by adopting track trolley with buffer unloading and empty bucket restoration
CN102787724A (en) * 2012-08-14 2012-11-21 厦门中联建设工程有限公司 Device and method for collecting concrete
EP2905397A1 (en) 2014-02-07 2015-08-12 Obrist Baugeräte AG Crane silo for the transport of bulk construction material such as concrete, gravel, sand or similar

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Publication number Priority date Publication date Assignee Title
US2054546A (en) * 1936-01-27 1936-09-15 Dravo Contracting Company Concrete bucket
US2713507A (en) * 1948-10-04 1955-07-19 Garlinghouse Brothers Concrete bucket
US2901148A (en) * 1957-04-01 1959-08-25 Samuel C Cunningham Bucket for conveying concrete
JPH07112789A (en) * 1993-10-15 1995-05-02 Rikidou Sangyo:Kk Bucket device for concrete, etc.
CH685831A5 (en) 1994-01-17 1995-10-13 Eduard Voegtli Transport equipment for loose building materials

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Publication number Priority date Publication date Assignee Title
US2054546A (en) * 1936-01-27 1936-09-15 Dravo Contracting Company Concrete bucket
US2713507A (en) * 1948-10-04 1955-07-19 Garlinghouse Brothers Concrete bucket
US2901148A (en) * 1957-04-01 1959-08-25 Samuel C Cunningham Bucket for conveying concrete
JPH07112789A (en) * 1993-10-15 1995-05-02 Rikidou Sangyo:Kk Bucket device for concrete, etc.
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1830017A1 (en) * 2006-03-02 2007-09-05 Obrist Baugeräte AG Crane bucket for transport of pourable construction material, like concrete, gravel, sand
CN101929246A (en) * 2010-08-30 2010-12-29 中国一冶集团有限公司 Method for conveying concrete by adopting track trolley with buffer unloading and empty bucket restoration
CN102787724A (en) * 2012-08-14 2012-11-21 厦门中联建设工程有限公司 Device and method for collecting concrete
CN102787724B (en) * 2012-08-14 2015-04-15 厦门中联建设工程有限公司 Device and method for collecting concrete
EP2905397A1 (en) 2014-02-07 2015-08-12 Obrist Baugeräte AG Crane silo for the transport of bulk construction material such as concrete, gravel, sand or similar

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