EP0706869A1 - Transportable mixer - Google Patents
Transportable mixer Download PDFInfo
- Publication number
- EP0706869A1 EP0706869A1 EP95112965A EP95112965A EP0706869A1 EP 0706869 A1 EP0706869 A1 EP 0706869A1 EP 95112965 A EP95112965 A EP 95112965A EP 95112965 A EP95112965 A EP 95112965A EP 0706869 A1 EP0706869 A1 EP 0706869A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cover
- funnel
- edge
- opening
- discharge funnel
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/42—Apparatus specially adapted for being mounted on vehicles with provision for mixing during transport
- B28C5/4203—Details; Accessories
- B28C5/4234—Charge or discharge systems therefor
Definitions
- the invention relates to a mixer truck with a mixing drum rotatably mounted on a vehicle frame and provided with a rotary drive, which has an opening provided with a circular edge at its rear end, with a discharge funnel which is fixed to the frame and which covers the lower region of the opening, and with a at its upper edge on a frame-fixed bracket or holding part, pivotally mounted, round, closing the opening, which a filling funnel passes through and which is sealed off from the edge of the opening by a seal that allows rotation of the mixing drum and which is sealed by a seal with this and a frame Part articulated pressure medium piston-cylinder unit between its closed position and its open position is pivotable.
- a truck mixer of this type is known for example from EP 0 374 682 B1.
- Truck mixers are increasingly being used to transport liquid mix, so that it is necessary to close the rear opening of the drum with a cover which prevents the liquid mix from spilling out.
- a mixing drum 2 is rotatably mounted on the vehicle frame (not shown) of a truck about an axis of rotation 1 which rises obliquely towards the end of the vehicle.
- the mixing drum 2 has at its rear end a circular opening 3 with a peripheral flange-shaped edge 4 that widens conically outwards.
- the lower part of the flange-shaped edge 4 is bordered by a discharge funnel 5 that is fixed to the frame.
- This outlet funnel 5 consists of two substantially U-shaped curved, obtuse angles to each other arranged groove-shaped parts 6, 7, whose lower legs overlap the flange-shaped edge 4 of the mixing drum 2 in corresponding cutouts.
- the two channel-shaped parts 6, 7 of the discharge funnel are welded together in the region of the vertical central plane of the mixing drum 2 in such a way that they form an outlet opening 8.
- the outlet funnel 5 is connected to the vehicle frame by lateral holding pieces 9, 10 and intermediate blocks or supports, not shown.
- a support bracket 14 is connected via holding pieces 12, 13, at the apex region of which a circular closure 17 is articulated by a joint 15 via a support piece 16.
- An inlet funnel 18 passing through this is connected to the cover 17.
- a pressure medium piston-cylinder unit 19 is provided, the cylinder of which is articulated in the center on a triangular plate 20, which is welded to the outer legs of the side parts 6, 7 of the discharge funnel, and its piston rod on the middle upper one Area of the hopper 18 is articulated.
- the cover 17 is shown in its closed position, in which the cover seal abuts the flange-shaped edge 4 of the mixing drum.
- the lid 17 abuts the outer boundary wall of the discharge funnel 5 with its lower edge region, so that the opening angle ⁇ 1 of the lid 17 is limited.
- this object is achieved in a truck mixer of the generic type in that the outlet funnel is provided with a round cutout corresponding to the contour of the lower region of the lid edge, which allows the lid to be swung out beyond the outlet funnel.
- the opening angle of the cover is not limited by the outer wall of the discharge funnel, since the cover can be pivoted beyond it. If the pressure medium-piston-cylinder unit pivoting the cover is loosened or unhooked, it can even be folded back onto the mixing drum so that the opening of the mixing drum is fully released.
- the curvature of the cutout of the discharge funnel is expediently adapted to the curvature of the cover in such a way that the cover can just pass the edge of the cutout when it is pivoted.
- This configuration thus provides that only a narrow gap remains between the lid, which is pivoted into the area of the outer wall of the outlet funnel, and the cutout, so that during the emptying process the lid closes the outlet funnel to the outside and an undesired escape of mixed material via the Edge of the discharge funnel prevented.
- An almost complete closure is achieved when the corresponding partially pivoted lid is in the level of the outer wall of the discharge funnel in the emptying position.
- the lid is expediently mounted on a bracket, the legs of which are connected to the outer side parts of the outlet funnel.
- Two lateral pressure medium piston-cylinder units can be provided for pivoting the cover. These pressure medium-piston-cylinder units are expediently each articulated to the side parts of the discharge funnel and the filling funnel.
- the lid system according to FIGS. 1 to 4 differs from the known ones according to FIGS. 5 to 7 in that the upper edge 30 of the outer wall of the discharge funnel 5 is provided with an arcuately curved cutout, the contour of which is essentially determined by the particular one Edge region of the cover 17 is determined, which just passes through the plane of the outer wall of the funnel 5.
- the lower region of the edge of the cover 17 is matched to the contour of the upper edge 30 of the outer wall of the discharge funnel 5 in such a way that a gap which is as narrow as possible remains between the two edges, which on the one hand enables the cover 17 to be swung freely over the discharge funnel 5 and on the other hand prevents an undesired escape of mixed material after pivoting the cover 17 into the emptying position.
- pressure medium-piston-cylinder units 31, 32 are provided, the cylinders of which are articulated on holding pieces 33 which are connected to the upper lateral areas of the outlet funnel 5.
- the piston rods of the pressure medium-piston-cylinder units 31, 32 are articulated on bow-shaped holding pieces 34, the legs of which are connected to the side walls of the inlet funnel 18 are welded.
- the pressure medium piston-cylinder units 31, 32 which serve to pivot the cover 17 are arranged laterally outside the pivoting range of the cover 17 in the manner shown in FIG. 4, so that the cover 17 is also freely accessible via the pressure medium piston cylinder Units 31, 32 can swing out.
- FIG 1 shows the lid system according to the invention in a position in which the lid 17 closes the opening of the mixing drum 2.
- the cover 17 is pivoted out into its emptying position by an angle ⁇ 1, in which the lower edge region of the cover 17 is located in the region of the edge 30 of the cutout of the outer wall of the discharge funnel 5.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
Description
Die Erfindung betrifft einen Fahrmischer mit einer auf einem Fahrzeugrahmen drehbar gelagerten und mit einem Drehantrieb versehenen Mischtrommel, die an ihrem hinteren Ende eine mit einem kreisrunden Rand versehene Öffnung besitzt, mit einem rahmenfest gehalterten Auslauftrichter, der den unteren Bereich der Öffnung überdeckt, und mit einem an seinem oberen Rand an einem rahmenfesten Bügel oder Halteteil schwenkbar gelagerten, runden, die Öffnung verschließenden Deckel, den ein Einfülltrichter durchsetzt und der gegenüber dem Rand der Öffnung durch eine eine Drehung der Mischtrommel zulassende Dichtung abgedichtet ist und der durch eine mit diesem und einem rahmenfesten Teil gelenkig verbundene Druckmittel-Kolben-Zylinder-Einheit zwischen seiner Verschlußstellung und seiner Öffnungsstellung verschwenkbar ist.The invention relates to a mixer truck with a mixing drum rotatably mounted on a vehicle frame and provided with a rotary drive, which has an opening provided with a circular edge at its rear end, with a discharge funnel which is fixed to the frame and which covers the lower region of the opening, and with a at its upper edge on a frame-fixed bracket or holding part, pivotally mounted, round, closing the opening, which a filling funnel passes through and which is sealed off from the edge of the opening by a seal that allows rotation of the mixing drum and which is sealed by a seal with this and a frame Part articulated pressure medium piston-cylinder unit between its closed position and its open position is pivotable.
Ein Fahrmischer dieser Art ist beispielsweise aus EP 0 374 682 B1 bekannt.A truck mixer of this type is known for example from EP 0 374 682 B1.
In zunehmendem Maße werden Fahrmischer zum Transport von flüssigem Mischgut verwendet, so daß es notwendig ist, die hintere Öffnung der Trommel durch einen Deckel zu verschließen, der ein Herausschwappen des flüssigen Mischguts verhindert.Truck mixers are increasingly being used to transport liquid mix, so that it is necessary to close the rear opening of the drum with a cover which prevents the liquid mix from spilling out.
Ein bekanntes übliches Deckelsystem der eingangs angegebenen Art wird nachstehend anhand der Fig. 5 bis 7 der Zeichnung näher erläutert:
Auf dem nicht dargestellten Fahrzeugrahmen eines Lkw ist um eine zum Fahrzeugende hin schräg ansteigende Drehachse 1 eine Mischtrommel 2 drehbar gelagert. Die Mischtrommel 2 besitzt an ihrem hinteren Ende eine kreisrunde Öffnung 3 mit einem sich konusförmig nach außen hin erweiternden umlaufenden flanschförmigen Rand 4. Der untere Teil des flanschförmigen Randes 4 ist von einem rahmenfest gehalterten Auslauftrichter 5 eingefaßt. Dieser Auslauftrichter 5 besteht aus zwei im wesentlichen U-förmig gekrümmten, stumpfwinkelig zueinander angeordneten rinnenförmigen Teilen 6, 7, deren unteren Schenkel in entsprechenden Ausschnitten den flanschförmigen Rand 4 der Mischtrommel 2 übergreifen. Die beiden rinnenförmigen Teile 6, 7 des Auslauftrichters sind im Bereich der vertikalen Mittelebene der Mischtrommel 2 in der Weise miteinander verschweißt, daß sie eine Auslauföffnung 8 bilden. Der Auslauftrichter 5 ist durch seitliche Haltestücke 9, 10 und nicht dargestellte zwischengeschaltete Böcke oder Stützen mit dem Fahrzeugrahmen verbunden.A known conventional cover system of the type specified at the outset is explained in more detail below with reference to FIGS. 5 to 7 of the drawing:
A
Mit den oberen Seitenteilen des Trichters 8 ist über Haltestücke 12, 13 ein Tragbügel 14 verbunden, an dessen Scheitelbereich durch ein Gelenk 15 über ein Tragstück 16 ein kreisrunder Verschluß 17 angelenkt ist. Mit dem Deckel 17 ist ein diesen durchsetzender Einlauftrichter 18 verbunden. Zum Verschwenken des Deckels 17 ist eine Druckmittel-Kolben-Zylinder-Einheit 19 vorgesehen, deren Zylinder mittig an einem dreieckigen Blech 20 angelenkt ist, das mit den äußeren Schenkeln der Seitenteile 6, 7 des Auslauftrichters verschweißt ist, und dessen Kolbenstange an dem mittleren oberen Bereich des Einfülltrichters 18 angelenkt ist.With the upper side parts of the funnel 8, a support bracket 14 is connected via
In Fig. 6 ist der Deckel 17 in seiner Verschlußstellung dargestellt, in der die Deckeldichtung schleifend an dem flanschförmigen Rand 4 der Mischtrommel anliegt.6, the cover 17 is shown in its closed position, in which the cover seal abuts the flange-
Aus Fig. 5 ist die Öffnungsstellung des Deckels 17 ersichtlich, in der dieser den Auslauftrichter 5 freigibt. In dieser Öffnungsstellung stößt der Deckel 17 mit seinem unteren Randbereich an die äußere Begrenzungswandung des Auslauftrichters 5 an, so daß der Öffnungswinkel α1 des Deckels 17 begrenzt ist.5 shows the open position of the cover 17, in which it releases the
Insbesondere zum Zweck der Reinigung der Mischtrommel, des Deckelsystems und der Dichtung und des Mischtrommelrandes ist ein guter und einfacher Zugang zu dem Öffnungsbereich der Mischtrommel erwünscht, der jedoch bei den bekannten Fahrmischern behindert wird, daß der Öffnungswinkel α1 des Deckels durch das Anstoßen an die äußere Wandung des Auslauftrichters stark eingeschränkt ist.Particularly for the purpose of cleaning the mixing drum, the cover system and the seal and the mixing drum edge, good and easy access to the opening area of the mixing drum is desirable, but this is hindered in the known truck mixers that the opening angle α1 of the cover is caused by the impact on the outside Wall of the discharge funnel is severely restricted.
Aufgabe der Erfindung ist es daher, einen Fahrmischer der eingangs angegebenen Art zu schaffen, der in einfacher Weise einen Zugang zu der Öffnung der Mischtrommel zu Wartungs- und Reinigungszwecken ermöglicht.It is therefore an object of the invention to provide a truck mixer of the type specified at the outset, which allows easy access to the opening of the mixing drum for maintenance and cleaning purposes.
Erfindungsgemäß wird diese Aufgabe bei einem Fahrmischer der gattungsgemäßen Art dadurch gelöst, daß der Auslauftrichter mit einem der Kontur des unteren Bereiches des Deckelrandes entsprechenden runden Ausschnitt versehen ist, der ein Ausschwenken des Deckels über den Auslauftrichter hinaus gestattet. Bei dem erfindungsgemäßen Fahrmischer ist also der Öffnungswinkel des Deckels nicht durch die äußere Wandung des Auslauftrichters beschränkt, da der Deckel über diesen hinaus geschwenkt werden kann. Wird die den Deckel verschwenkende Druckmittel-Kolben-Zylinder-Einheit gelöst oder ausgehakt, läßt sich dieser sogar bis auf die Mischtrommel zurückklappen, so daß die Öffnung der Mischtrommel völlig freigegeben wird.According to the invention, this object is achieved in a truck mixer of the generic type in that the outlet funnel is provided with a round cutout corresponding to the contour of the lower region of the lid edge, which allows the lid to be swung out beyond the outlet funnel. In the truck mixer according to the invention, the opening angle of the cover is not limited by the outer wall of the discharge funnel, since the cover can be pivoted beyond it. If the pressure medium-piston-cylinder unit pivoting the cover is loosened or unhooked, it can even be folded back onto the mixing drum so that the opening of the mixing drum is fully released.
Zweckmäßigerweise ist die Krümmung des Ausschnitts des Auslauftrichters derart an die Krümmung des Deckels angepaßt, daß der Deckel bei seinem Verschwenken den Rand des Ausschnitts gerade passieren kann. Diese Ausgestaltung sieht somit vor, daß zwischen dem etwa in den Bereich der äußeren Wandung des Auslauftrichters geschwenkten Deckel und dem Ausschnitt nur ein schmaler Spalt verbleibt, so daß während des Entleervorgangs der Deckel den Auslauftrichter nach außen hin abschließt und ein unerwünschtes Austreten von Mischgut über den Rand des Auslauftrichters verhindert. Ein nahezu vollständiger Abschluß wird erreicht, wenn sich in der Entleerstellung der entsprechend teilweise ausgeschwenkte Deckel in der Ebene der äußeren Wandung des Auslauftrichters befindet.The curvature of the cutout of the discharge funnel is expediently adapted to the curvature of the cover in such a way that the cover can just pass the edge of the cutout when it is pivoted. This configuration thus provides that only a narrow gap remains between the lid, which is pivoted into the area of the outer wall of the outlet funnel, and the cutout, so that during the emptying process the lid closes the outlet funnel to the outside and an undesired escape of mixed material via the Edge of the discharge funnel prevented. An almost complete closure is achieved when the corresponding partially pivoted lid is in the level of the outer wall of the discharge funnel in the emptying position.
Zweckmäßigerweise ist der Deckel an einem Bügel gelagert, dessen Schenkel mit den äußeren Seitenteilen des Auslauftrichters verbunden sind.The lid is expediently mounted on a bracket, the legs of which are connected to the outer side parts of the outlet funnel.
Zum Verschwenken des Deckels können zwei seitliche Druckmittel-Kolben-Zylinder-Einheiten vorgesehen sein. Diese Druckmittel-Kolben-Zylinder-Einheiten sind zweckmäßigerweise jeweils gelenkig mit den Seitenteilen des Auslauftrichters und des Einfülltrichters verbunden.Two lateral pressure medium piston-cylinder units can be provided for pivoting the cover. These pressure medium-piston-cylinder units are expediently each articulated to the side parts of the discharge funnel and the filling funnel.
Ein Ausführungsbeispiel der Erfindung wird nachstehend anhand der Zeichnungsfiguren 1 bis 4 näher erläutert. Dabei zeigt
- Fig. 1
- eine Seitenansicht des Deckelsystems für die Mischtrommel in einem Zustand, in dem der Deckel die Mischtrommel verschließt,
- Fig. 2
- eine der Fig. 1 entsprechende Darstellung des Deckelsystems, in der sich der Deckel in seiner Entleerstellung befindet,
- Fig. 3
- eine den Fig. 1 und 2 entsprechende Darstellung des Deckelsystems, in der der Deckel über die äußere Wandung des Auslauftrichters hinaus ausgeschwenkt ist, und
- Fig. 4
- eine Draufsicht auf das Deckelsystem nach den Fig. 1 bis 3.
- Fig. 1
- 2 shows a side view of the cover system for the mixing drum in a state in which the cover closes the mixing drum,
- Fig. 2
- 1 corresponding representation of the lid system, in which the lid is in its emptying position,
- Fig. 3
- 1 and 2 corresponding representation of the lid system, in which the lid is pivoted out over the outer wall of the discharge funnel, and
- Fig. 4
- a plan view of the lid system according to FIGS. 1 to 3.
Das erfindungsgemäße Deckelsystem nach den Fig. 1 bis 4 unterscheidet sich von den bekannten nach den Fig. 5 bis 7 dadurch, daß der obere Rand 30 der äußeren Wandung des Auslauftrichters 5 mit einem bogenförmig gekrümmten Ausschnitt versehen ist, dessen Kontur im wesentlichen durch den jeweiligen Randbereich des Deckels 17 bestimmt wird, der gerade die Ebene der äußeren Wandung des Trichters 5 durchsetzt. Der untere Bereich des Randes des Deckels 17 ist auf die Kontur des oberen Randes 30 der äußeren Wandung des Auslauftrichters 5 derart abgestimmt, daß zwischen den beiden Rändern ein möglichst schmaler Spalt verbleibt, der einerseits ein ungehindertes Ausschwenken des Deckels 17 über den Auslauftrichter 5 hinaus ermöglicht und andererseits ein unerwünschtes Austreten von Mischgut nach dem Verschwenken des Deckels 17 in die Entleerstellung verhindert.The lid system according to FIGS. 1 to 4 differs from the known ones according to FIGS. 5 to 7 in that the
Zur Verschwenkung des Deckels 17 sind Druckmittel-Kolben-Zylinder-Einheiten 31, 32 vorgesehen, deren Zylinder an Haltestücken 33 angelenkt sind, die mit den oberen seitlichen Bereichen des Auslauftrichters 5 verbunden sind. Die Kolbenstangen der Druckmittel-Kolben-Zylinder-Einheiten 31, 32 sind an bügelförmigen Haltestücken 34 angelenkt, deren Schenkel mit den Seitenwänden des Einlauftrichters 18 verschweißt sind. Die dem Verschwenken des Deckels 17 dienenden Druckmittel-Kolben-Zylinder-Einheiten 31, 32 sind in der aus Fig. 4 ersichtlichen Weise seitlich außerhalb des Schwenkbereichs des Deckels 17 angeordnet, so daß der Deckel 17 behinderungsfrei auch über die Druckmittel-Kolben-Zylinder-Einheiten 31, 32 hinaus ausschwenken kann.For pivoting the cover 17, pressure medium-piston-cylinder units 31, 32 are provided, the cylinders of which are articulated on
Aus Fig. 1 ist das erfindungsgemäße Deckelsystem in einer Stellung ersichtlich, in der der Deckel 17 die Öffnung der Mischtrommel 2 verschließt.1 shows the lid system according to the invention in a position in which the lid 17 closes the opening of the
Bei der aus Fig. 2 ersichtlichen Darstellung ist der Deckel 17 um einen Winkel α1 in seine Entleerstellung ausgeschwenkt, in der sich der untere Randbereich des Deckels 17 im Bereich des Randes 30 des Ausschnittes der äußeren Wandung des Auslauftrichters 5 befindet.In the illustration shown in FIG. 2, the cover 17 is pivoted out into its emptying position by an angle α1, in which the lower edge region of the cover 17 is located in the region of the
Aus Fig. 3 ist eine Stellung des Deckels 17 ersichtlich, in der dieser um den Winkel α2 über den Auslauftrichter hinaus ausgeschwenkt ist.From Fig. 3 a position of the cover 17 can be seen in which it is pivoted out by the angle α2 beyond the discharge funnel.
Claims (5)
mit einer auf einem Fahrzeugrahmen drehbar gelagerten und mit einem Drehantrieb versehenen Mischtrommel, die an ihrem hinteren Ende eine mit einem kreisrunden Rand versehene Öffnung besitzt,
mit einem rahmenfest gehalterten Auslauftrichter, der den unteren Bereich der Öffnung überdeckt und
mit einem an seinem oberen Rand an einem rahmenfesten Bügel oder Halteteil schwenkbar gelagerten, runden, die Öffnung verschließenden Deckel, den ein Einfülltrichter durchsetzt und der gegenüber dem Rand der Öffnung durch eine eine Drehung der Mischtrommel zulassende Dichtung abgedichtet ist und der durch eine mit diesem und einem rahmenfesten Teil gelenkig verbundenen Druckmittel-Kolben-Zylinder-Einheit zwischen seiner Verschlußstellung und seiner Öffnungsstellung verschwenkbar ist,
dadurch gekennzeichnet,
daß der Auslauftrichter mit einem der Kontur des unteren Bereiches des Deckelrandes entsprechenden runden Ausschnitt versehen ist, der ein Ausschwenken des Deckels über den Auslauftrichter hinaus gestattet.Truck mixer
with a mixing drum rotatably mounted on a vehicle frame and provided with a rotary drive, which has an opening provided with a circular edge at its rear end,
with a discharge funnel fixed to the frame, which covers the lower area of the opening and
with a round lid which closes the opening and which is pivotally mounted on a frame-fixed bracket or holding part at its upper edge, through which a filling funnel passes and which is sealed off from the edge of the opening by a seal which permits rotation of the mixing drum and which is sealed by a seal with this and a frame-fixed part of an articulated pressure-piston-cylinder unit is pivotable between its closed position and its open position,
characterized by
that the outlet funnel is provided with a round cutout corresponding to the contour of the lower region of the lid edge, which allows the lid to be swung out beyond the outlet funnel.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE9416517U | 1994-10-13 | ||
| DE9416517U DE9416517U1 (en) | 1994-10-13 | 1994-10-13 | Truck mixer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0706869A1 true EP0706869A1 (en) | 1996-04-17 |
| EP0706869B1 EP0706869B1 (en) | 2002-01-16 |
Family
ID=6914861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP95112965A Expired - Lifetime EP0706869B1 (en) | 1994-10-13 | 1995-08-17 | Transportable mixer |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0706869B1 (en) |
| AT (1) | ATE211961T1 (en) |
| DE (2) | DE9416517U1 (en) |
| ES (1) | ES2171479T3 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6957908B1 (en) * | 2001-09-15 | 2005-10-25 | Oshkosh Truck Corporation | Environmental shield for a truck mounted concrete mixer |
| CN108407094A (en) * | 2018-06-04 | 2018-08-17 | 莱州双象重工机械有限公司 | Automatic charging blender |
| CN111805745A (en) * | 2020-07-17 | 2020-10-23 | 安徽工业大学 | Movable tool for sealing device of tail cover of stirring vehicle |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29621448U1 (en) * | 1996-12-10 | 1997-02-06 | Liebherr-Mischtechnik Gmbh, 88427 Bad Schussenried | Closure |
| DE19956939A1 (en) | 1999-11-26 | 2001-05-31 | Eirich Maschf Gustav | Device and method for closing an emptying opening in a rotating container |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2267801A (en) * | 1939-08-14 | 1941-12-30 | T L Smith Co | Transit concrete mixer |
| GB544299A (en) * | 1941-05-09 | 1942-04-07 | Chain Belt Co | Method of and apparatus for mixing concrete |
| US2451555A (en) * | 1944-10-23 | 1948-10-19 | Chain Belt Co | Means for charging, sealing, and discharging mixers |
| US4154534A (en) * | 1977-07-28 | 1979-05-15 | The Jaeger Machine Company | Transit concrete mixer adapted for loading and discharging aggregates of a wide range of slump value |
| US4318621A (en) * | 1977-05-09 | 1982-03-09 | Jaeger Machine Company | Transit concrete mixer with displaceable charging hopper |
| EP0374682B1 (en) | 1988-12-17 | 1991-09-25 | Stetter Gmbh | Vehicle concrete mixer |
| EP0642900A1 (en) * | 1993-05-05 | 1995-03-15 | Stetter Gmbh | Vehicle mounted mixer for flowable medium such as concrete |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1999843A (en) * | 1931-10-09 | 1935-04-30 | Blaw Knox Co | Mixer |
-
1994
- 1994-10-13 DE DE9416517U patent/DE9416517U1/en not_active Expired - Lifetime
-
1995
- 1995-08-17 DE DE59509997T patent/DE59509997D1/en not_active Expired - Lifetime
- 1995-08-17 EP EP95112965A patent/EP0706869B1/en not_active Expired - Lifetime
- 1995-08-17 ES ES95112965T patent/ES2171479T3/en not_active Expired - Lifetime
- 1995-08-17 AT AT95112965T patent/ATE211961T1/en active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2267801A (en) * | 1939-08-14 | 1941-12-30 | T L Smith Co | Transit concrete mixer |
| GB544299A (en) * | 1941-05-09 | 1942-04-07 | Chain Belt Co | Method of and apparatus for mixing concrete |
| US2451555A (en) * | 1944-10-23 | 1948-10-19 | Chain Belt Co | Means for charging, sealing, and discharging mixers |
| US4318621A (en) * | 1977-05-09 | 1982-03-09 | Jaeger Machine Company | Transit concrete mixer with displaceable charging hopper |
| US4154534A (en) * | 1977-07-28 | 1979-05-15 | The Jaeger Machine Company | Transit concrete mixer adapted for loading and discharging aggregates of a wide range of slump value |
| EP0374682B1 (en) | 1988-12-17 | 1991-09-25 | Stetter Gmbh | Vehicle concrete mixer |
| EP0642900A1 (en) * | 1993-05-05 | 1995-03-15 | Stetter Gmbh | Vehicle mounted mixer for flowable medium such as concrete |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6957908B1 (en) * | 2001-09-15 | 2005-10-25 | Oshkosh Truck Corporation | Environmental shield for a truck mounted concrete mixer |
| CN108407094A (en) * | 2018-06-04 | 2018-08-17 | 莱州双象重工机械有限公司 | Automatic charging blender |
| CN111805745A (en) * | 2020-07-17 | 2020-10-23 | 安徽工业大学 | Movable tool for sealing device of tail cover of stirring vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2171479T3 (en) | 2002-09-16 |
| EP0706869B1 (en) | 2002-01-16 |
| DE59509997D1 (en) | 2002-02-21 |
| ATE211961T1 (en) | 2002-02-15 |
| DE9416517U1 (en) | 1995-01-12 |
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