EP0320781B1 - Device for transporting and laying shaped stones or shaped flagstones - Google Patents
Device for transporting and laying shaped stones or shaped flagstones Download PDFInfo
- Publication number
- EP0320781B1 EP0320781B1 EP88120475A EP88120475A EP0320781B1 EP 0320781 B1 EP0320781 B1 EP 0320781B1 EP 88120475 A EP88120475 A EP 88120475A EP 88120475 A EP88120475 A EP 88120475A EP 0320781 B1 EP0320781 B1 EP 0320781B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- chain
- shaped
- frame
- deflection roller
- laying
- 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.)
- Expired - Lifetime
Links
- 239000004575 stone Substances 0.000 title claims abstract description 9
- 238000000034 method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/52—Apparatus for laying individual preformed surfacing elements, e.g. kerbstones
- E01C19/526—Apparatus for laying individual preformed surfacing elements, e.g. kerbstones hand operated
- E01C19/528—Apparatus for laying individual preformed surfacing elements, e.g. kerbstones hand operated with wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/061—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks characterised by having a lifting jib
Definitions
- the invention relates to a device for transporting and laying shaped stones and stone slabs, which are individually removed from a stack and transported to the installation site, with a horizontally projecting gripping and lifting system, which is vertically displaceably mounted on a vertical frame guided on wheels Height-adjustable by means of a tension member which is guided over a deflection roller mounted at the upper end of the frame and can be influenced in its movement by means of a braking system in cooperation with a spring element designed as a gas spring.
- Such a device is known from FR-A-2 381 133.
- This device essentially works by means of a hydraulic cylinder, however, an existing pressure accumulator, which can also be designed as a gas spring, only fulfills an additional function. It is true that the extension arm is raised and lowered by means of a traction cable, this traction cable being guided over a roller which is attached to the upper end of a hydraulic cylinder. When lowering, the hydraulic cylinder also moves downwards and presses the hydraulic fluid into a cylinder, from where the energy accumulator is then activated.
- such hydraulic cylinders are somewhat susceptible to operation and also require additional lubricants, so that they are therefore not very environmentally friendly.
- the present invention has for its object to provide a device of the aforementioned type, which is simple in construction, which allows the stones to be picked up and put down without any particular effort and which, with easy handling, has a high level of operational safety without possible environmental pollution.
- At least one gas spring is fixed vertically in the frame with its gas cylinder and the free end of the downwardly extendable piston rod of the gas spring is in operative connection with the tension member designed as a chain.
- the lifting and gripping system is thus directly coupled via a chain to the piston rod of a gas spring, which is activated when the lifting system is lowered, the lifting system can be automatically opened again.
- a gas spring By using a gas spring, a largely trouble-free and very environmentally compatible arrangement is created, which is also very simple, robust and immune to failure.
- Two gas springs arranged in parallel are expediently provided, the piston rods of which are connected to one another by an axis carrying a further deflecting roller, via which deflecting roller the chain is guided.
- the chain can be fixed above the lower deflection roller on the frame itself, wherein the deflection roller can also be designed as a sprocket.
- the brake system is expediently designed as a drum brake, which brake can be inserted by means of a spring and can be released by hand using a Bowden cable.
- the gripping and lifting system shown in Fig. 1 is generally designated 1. It is constructed in a basic design known per se and works in the manner of a snap lock with a sensor in such a way that the pliers-like gripper is first opened when it is lowered by a sensor and is closed by the train when it is raised again.
- the entire gripping and lifting system 1 depends on a crossbar 2, which is supported by a rod 16 with which it is jointly attached to a vertical guide system 3, which slides on two parallel guide rods 4 and 4 'with the help of rollers 20 .
- the guide system 3 hangs on a chain 8, which is guided via a chain wheel 9, which is connected to a disc brake or drum brake, not shown.
- the brake in connection with the chain wheel 9 can be released via a Bowden cable 10 depending on an actuation of the operator on the lever 11 against the force of a spring 14 which is fixed on one side to an abutment 13, via a brake lever, which is not specified in detail.
- the entire device can be moved using the linkage 12.
- the device according to the invention is used in such a way that the operator first moves the entire device to a stack of shaped stone pallets, where the holding and lifting system can drop by tilting onto the uppermost pallet, and this upper plate is raised for gripping. The brake is therefore blocked. Then the entire device is pushed to the storage place (relocation point).
- the frame which can be constructed, for example, as a frame 23 (FIG. 4), two gas pressure springs 15 are attached next to one another, which are rigidly connected at their lower end, in the region of the end of the piston rod, to a deflection wheel 21, which is only indicated schematically.
- the gas springs push the deflection roller 21 down again and thereby lift the now much lighter lifting and gripping system 1 until the operator stops the upward movement by applying the brake.
- the trolley can be guided back to the stack of stones with the lifting and gripping system raised and the stone slab can be picked up.
- the process described is repeated, the gas springs being set so that when the lifting and gripping system is loaded, the gas pressure springs are compressed and when the load is off they can relax again.
- the lifting and gripping system can be guided on a corresponding endless chain and the gas pressure springs can be arranged on the side of the lowering of the lifting and gripping system and act directly on the slide.
- the chain is only used for the holding and braking processes, while the pressure of the lifting and gripping system is exerted directly on the gas pressure springs when lowering and on the other hand by the gas pressure springs on the spring and brake system when lifting.
- the only decisive factor is that the movement of the lifting and gripping system, which is controlled in a weight-dependent manner by means of the gas pressure springs, can be clearly locked in any end position and in particular also in every intermediate position by means of a brake.
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Transportation (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Handcart (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
Description
Die Erfindung bezieht sich auf eine Vorrichtung zum Transport und Verlegen von Formsteinen und Formsteinplatten, die einzeln von einem Stapel abgenommen und zum Verlegeort transportiert werden, mit einem an einem auf Rädern geführten, vertikalen Gestell höhenverstellbar verschieblich angebrachten, horizontal abragenden Greif- und Hebesystem, das mittels eines Zuggliedes, das über eine am oberen Ende des Gestells gelagerten Umlenkrolle geführt und mittels eines Bremssystems im Zusammenwirken mit einem als Gasfeder ausgebildeten Federelement in seiner Bewegung beinflußbar ist, höhenverstellbar geführt ist.The invention relates to a device for transporting and laying shaped stones and stone slabs, which are individually removed from a stack and transported to the installation site, with a horizontally projecting gripping and lifting system, which is vertically displaceably mounted on a vertical frame guided on wheels Height-adjustable by means of a tension member which is guided over a deflection roller mounted at the upper end of the frame and can be influenced in its movement by means of a braking system in cooperation with a spring element designed as a gas spring.
Eine solche Vorrichtung ist aus der FR-A-2 381 133 bekannt. Diese Vorrichtung arbeitet im wesentlichen aber mittels Hydraulikzylinder, wobei ein ebenfalls vorhandener Druckspeicher, der auch als Gasfeder ausgebildet sein kann, nur eine zusätzliche Funktion erfüllt. Es wird zwar hier der Auslegearm mittels eines Zugseils angehoben und abgesenkt, wobei dieses Zugseil über eine Rolle geführt ist, die am oberen Ende eines Hydraulikzylinders befestigt ist. Beim Absenken fährt dann ebenfalls der Hydraulikzylinder nach unten und drückt die Hydraulikflüssigkeit in einen Zylinder, von wo aus dann der Kraftspeicher aktiviert wird. Derartige Hydraulikzylinder weisen jedoch im Betrieb eine gewisse Anfälligkeit auf und benötigen darüberhinaus zusätzliche Schmiermittel, so daß sie damit nicht sehr umweltverträglich sind.Such a device is known from FR-A-2 381 133. This device essentially works by means of a hydraulic cylinder, however, an existing pressure accumulator, which can also be designed as a gas spring, only fulfills an additional function. It is true that the extension arm is raised and lowered by means of a traction cable, this traction cable being guided over a roller which is attached to the upper end of a hydraulic cylinder. When lowering, the hydraulic cylinder also moves downwards and presses the hydraulic fluid into a cylinder, from where the energy accumulator is then activated. However, such hydraulic cylinders are somewhat susceptible to operation and also require additional lubricants, so that they are therefore not very environmentally friendly.
Eine ähnliche Vorrichtung ist in der DE-U-7 712 606 beschrieben, bei der das Hebe- und Greifsystem über eine gebremste Kette bewegt wird, wobei diese Kette an ihrem freien Ende zur Entlastung und zum Gewichtsausgleich ein Gegengewicht aufweist. Damit können jedoch nur konstante Hebekräfte bewirkt werden, wobei das Gegengewicht lediglich das Leergwicht des Greif- und Hebesystems ausgleichen darf, da dieses sich sonst unbelastet nicht mehr absenken würde.A similar device is described in DE-U-7 712 606, in which the lifting and gripping system is moved over a braked chain, this chain at its free end Relief and to counterbalance the weight. However, this means that only constant lifting forces can be achieved, with the counterweight only being able to compensate for the unladen weight of the gripping and lifting system, since this would otherwise no longer be unloaded.
Demgegenüber liegt der vorliegenden Erfindung die Aufgabe zugrunde, eine Vorrichtung der vorgenannten Art zu schaffen, die einfach aufgebaut ist, die ein Aufnehmen und Ablegen der Steine ohne besonderen Kraftaufwand ermöglicht und die bei leichter Handhabung eine hohe Betriebssicherheit ohne mögliche Umweltbelastungen aufweist.In contrast, the present invention has for its object to provide a device of the aforementioned type, which is simple in construction, which allows the stones to be picked up and put down without any particular effort and which, with easy handling, has a high level of operational safety without possible environmental pollution.
Zur Lösung dieser Aufgabe ist erfindungsgemäß vorgesehen, daß mindestens eine Gasfeder mit ihrem Gaszylinder vertikal im Gestell festgelegt ist und das freie Ende der nach unten ausfahrbaren Kolbenstange der Gasfeder mit dem als Kette ausgebildeten Zugglied in Wirkverbindung steht.To solve this problem it is provided according to the invention that at least one gas spring is fixed vertically in the frame with its gas cylinder and the free end of the downwardly extendable piston rod of the gas spring is in operative connection with the tension member designed as a chain.
Da somit das Hebe- und Greifsystem unmittelbar über eine Kette an die Kolbenstange einer Gasfeder angekoppelt ist, die beim Niederfahren des Hebesystems aktiviert wird, ist damit ein selbsttätiges Wiederauffahren des Hebesystems möglich. Durch die Verwendung einer Gasfeder ist eine weitgehend störungsfreie und sehr umweltverträgliche Anordnung geschaffen, die darüberhinaus sehr einfach, robust und störungsunanfällig aufgebaut ist.Since the lifting and gripping system is thus directly coupled via a chain to the piston rod of a gas spring, which is activated when the lifting system is lowered, the lifting system can be automatically opened again. By using a gas spring, a largely trouble-free and very environmentally compatible arrangement is created, which is also very simple, robust and immune to failure.
Zweckmäßigerweise sind zwei parallel angeordnete Gasfedern vorgesehen, deren Kolbenstangen durch eine eine weitere Umlenkrolle tragende Achse miteinander verbunden sind, über welche Umlenkrolle die Kette geführt ist.Two gas springs arranged in parallel are expediently provided, the piston rods of which are connected to one another by an axis carrying a further deflecting roller, via which deflecting roller the chain is guided.
Dabei kann die Kette oberhalb der unteren Umlenkrolle am Gestell selbst festgelegt sein, wobei die Umlenkrolle auch als Kettenrad ausgebildet sein kann.The chain can be fixed above the lower deflection roller on the frame itself, wherein the deflection roller can also be designed as a sprocket.
Zweckmäßigerweise ist das Bremssystem als Trommelbremse ausgebildet, wobei diese Bremse mittels einer Feder eingelegt und von Hand über einen Bowdenzug lösbar sein kann.The brake system is expediently designed as a drum brake, which brake can be inserted by means of a spring and can be released by hand using a Bowden cable.
Einzelheiten einer Vorrichtung nach der Erfindung werden nachfolgend anhand einer schematischen Zeichnung erläutert.Details of a device according to the invention are explained below with reference to a schematic drawing.
In den Zeichnungen zeigen:
- Fig. 1
- in einer Seitenansicht eine Transportvorrichtung nach der Erfindung,
- Fig. 2
- in Seitenansicht die Rollenführung des Greif- und Hebesystems in vergrößertem Maßstab,
- Fig. 3
- das Rollensystem in Draufsicht und
- Fig. 4
- eine Schnittdarstellung längs der Linie IV - IV in Fig. 1 in einer schematisierten Darstellung zur Erläuterung des grundsätzlichen Aufbaus.
- Fig. 1
- a side view of a transport device according to the invention,
- Fig. 2
- in side view the roller guide of the gripping and lifting system on an enlarged scale,
- Fig. 3
- the roller system in top view and
- Fig. 4
- a sectional view taken along the line IV - IV in Fig. 1 in a schematic representation to explain the basic structure.
Das in Fig. 1 gezeigte Greif- und Hebesystem ist pauschal mit 1 bezeichnet. Es ist in einer an sich bekannten Grundausführung aufgebaut und arbeitet nach Art eines Schnappverschlusses mit Fühler derart, daß beim Absenken über einen Fühler zunächst der zangenartige Greifer geöffnet und beim Wiederanheben durch den Zug nach oben geschlossen wird.The gripping and lifting system shown in Fig. 1 is generally designated 1. It is constructed in a basic design known per se and works in the manner of a snap lock with a sensor in such a way that the pliers-like gripper is first opened when it is lowered by a sensor and is closed by the train when it is raised again.
Das gesamte Greif- und Hebesystem 1 hängt an einer Quertraverse 2, die durch eine Stange 16 abgestützt ist, mit der sie gemeinsam an einem vertikalen Führungssystem 3 befestigt ist, das an zwei parallel angeordneten Führungsstangen 4 bzw. 4′ mit Hilfe von Rollen 20 gleitet.The entire gripping and lifting system 1 depends on a crossbar 2, which is supported by a
Das Führungssystem 3 hängt an einer Kette 8, die über ein Kettenrad 9, das mit einer nicht dargestellten Scheibenbremse oder Trommelbremse verbunden ist, geführt ist.The
Die in Verbindung mit dem Kettenrad 9 stehende Bremse kann über einen Bowdenzug 10 abhängig von einer Betätigung der Bedienungsperson am Hebel 11 entgegen der Kraft einer Feder 14, die einseitig an einem Widerlager 13 befestigt ist, über einen im einzelnen nicht bezeichneten Bremshebel gelüftet werden. Die gesamte Vorrichtung kann mit Hilfe des Gestänges 12 verschoben werden.The brake in connection with the chain wheel 9 can be released via a Bowden
Die Vorrichtung nach der Erfindung wird so eingesetzt, daß die Bedienungsperson zunächst die gesamte Vorrichtung zu einem Stapel von Formsteinpaletten fährt, dort das Halte- und Hebesystem durch Kippen auf die oberste Palette absinken läßt, und diese obere Platte zum Greifen angehoben wird. Die Bremse ist daher blockiert. Dann wird die gesamte Vorrichtung zu dem Ablageplatz (Verlegungsstelle) geschoben.The device according to the invention is used in such a way that the operator first moves the entire device to a stack of shaped stone pallets, where the holding and lifting system can drop by tilting onto the uppermost pallet, and this upper plate is raised for gripping. The brake is therefore blocked. Then the entire device is pushed to the storage place (relocation point).
Dort löst die Bedienungsperson über den Handgriff 11 die Bremse für das Kettenrad 9 und aufgrund des Gewichtes des Greif- und Hebesystems 1 zusammen mit der von diesem aufgenommenen Platte senkt sich das System mit der Platte bis auf den Versetzungsort ab, und zwar mit einer Geschwindigkeit, die über die Bremse steuerbar ist.There, the operator releases the brake for the chain wheel 9 via the handle 11 and, due to the weight of the gripping and lifting system 1 together with the plate received by the latter, the system with the plate lowers down to the point of displacement, at a speed, which is controllable via the brake.
In dem Gestell, das beispielsweise als Rahmen 23 (Fig. 4) aufgebaut sein kann, sind zwei Gasdruckfedern 15 nebeneinander angebracht, die an ihrem unteren Ende, und zwar im Bereich des Endes der Kolbenstange mit einem nur schematisch angedeuteten Umlenkrad 21 starr verbunden sind. Die Kette 8, an der das Greif-und Hebesystem 1 aufgehängt ist, und die, wie erwähnt, über das Kettenrad 9 geführt ist, ist weiter zwischen den beiden Gasfedern 15 nach unten geführt und wird über die Umlenkrolle 21 wieder nach oben gezogen und starr am Rahmen befestigt.In the frame, which can be constructed, for example, as a frame 23 (FIG. 4), two
Dadurch werden beim Absenken des Greif- und Hebesystems 1 aufgrund des Gewichtes der dort aufgehängten Platten über die Kette 8 nach Lösen der Bremse über den Bowdenzug 10 die beiden Gasdruckfedern zusammengedrückt, wodurch das Umlenkrad 21 nach oben zusammen mit den Kolbenstangen der Gasdruckfedern wandert.As a result, when the gripping and lifting system 1 is lowered due to the weight of the plates suspended there via the
Nach dem Absetzen drücken die Gasfedern die Umlenkrolle 21 wieder nach unten und heben dadurch das nunmehr sehr viel leichtere Hebe- und Greifsystem 1 nach oben, bis die Bedienungsperson die Bewegung nach oben durch Einlegen der Bremse stoppt.After setting down, the gas springs push the
Nun kann der Wagen mit angehobenem Hebe- und Greifsystem wieder zu dem Stapel von Steinen geführt werden und die Steinplatte aufgenommen werden. Der beschriebene Vorgang wiederholt sich dabei, wobei die Gasfedern so eingestellt sind, daß bei belastetem Hebe- und Greifsystem die Gasdruckfedern zusammengedrückt und bei entlastetem sich diese wieder entspannen können.Now the trolley can be guided back to the stack of stones with the lifting and gripping system raised and the stone slab can be picked up. The process described is repeated, the gas springs being set so that when the lifting and gripping system is loaded, the gas pressure springs are compressed and when the load is off they can relax again.
Die Erfindung wurde bewußt nur an einem schematisch dargestellten Ausführungsbeispiel erläutert, da im Rahmen fachmännischen Könnens eine Vielzahl von Abwandlungen im Rahmen des Erfindungsgedankens möglich sind. So kann beispielsweise das Hebe- und Greifsystem an einer entsprechenden Endloskette geführt sein und die Gasdruckfedern können auf der Seite des Absenkens des Hebe- und Greifsystems angeordnet sein und unmittelbar an dem Schlitten angreifen. In diesem Fall wird die Kette lediglich für die Halte-und Bremsvorgänge herangezogen, während der Druck von Hebe-und Greifsystem einerseits auf die Gasdruckfedern beim Absenken und andererseits von den Gasdruckfedern auf das Feder- und Bremssystem beim Anheben unmittelbar ausgeübt wird. Entscheidend allein ist, daß die über die Gasdruckfedern gewichtsabhängig gesteuerte Bewegung des Hebe- und Greifsystems in jeder Endstellung und insbesondere auch jeder Zwischenstellung über eine Bremse eindeutig arretiert werden kann.The invention was deliberately explained only on the basis of a schematically illustrated exemplary embodiment, since a large number of modifications are possible within the scope of the technical skill within the scope of the inventive concept. For example, the lifting and gripping system can be guided on a corresponding endless chain and the gas pressure springs can be arranged on the side of the lowering of the lifting and gripping system and act directly on the slide. In this case, the chain is only used for the holding and braking processes, while the pressure of the lifting and gripping system is exerted directly on the gas pressure springs when lowering and on the other hand by the gas pressure springs on the spring and brake system when lifting. The only decisive factor is that the movement of the lifting and gripping system, which is controlled in a weight-dependent manner by means of the gas pressure springs, can be clearly locked in any end position and in particular also in every intermediate position by means of a brake.
Claims (6)
- Device for transporting and laying shaped stones and shaped flagstones which are individually removed from a stack and transported to the laying site, having a horizontally projecting gripping and lifting system (1, 2) which is displaceably mounted so as to be vertically adjustable on a vertical frame (23) conveyed on wheels (5, 7) and is guided so as to be vertically adjustable by means of a tension member (8), which is conveyed over a deflection roller (9) supported on the top end of the frame (23) and whose movement may be influenced by means of a braking system in cooperation with a spring element in the form of a pneumatic spring (15), characterized in that at least one pneumatic spring (15) is fixed with its gas cylinder vertically in the frame (23) and the free end of the downwardly extendable piston rod of the pneumatic spring (15) is operationally connected to the tension member in the form of chain (8).
- Device according to claim 1, characterized in that two parallel pneumatic springs (15) are provided, whose piston rods are connected to one another by an axle bearing a further deflection roller (21), over which the chain (8) is conveyed.
- Device according to claim 2, characterized in that the chain (8) is fixed on the frame (23) above the lower deflection roller (21).
- Device according to claim 1, characterized in that the deflection roller (9) takes the form of a chain wheel.
- Device according to claim 1, characterized in that the braking system takes the form of a drum brake.
- Device according to claim 5, characterized in that the brake is applied by means of a spring (14) and is releasable manually via a Bowden cable (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT88120475T ATE78539T1 (en) | 1987-12-16 | 1988-12-07 | DEVICE FOR TRANSPORTATION AND LAYING OF SHAPED STONE OR SHAPED STONE PANELS. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE8716604U | 1987-12-16 | ||
| DE8716604U DE8716604U1 (en) | 1987-12-16 | 1987-12-16 | Device for transporting and laying shaped bricks or shaped brick slabs |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0320781A1 EP0320781A1 (en) | 1989-06-21 |
| EP0320781B1 true EP0320781B1 (en) | 1992-07-22 |
Family
ID=6815189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP88120475A Expired - Lifetime EP0320781B1 (en) | 1987-12-16 | 1988-12-07 | Device for transporting and laying shaped stones or shaped flagstones |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0320781B1 (en) |
| AT (1) | ATE78539T1 (en) |
| DE (2) | DE8716604U1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3930222A1 (en) * | 1989-09-11 | 1990-03-22 | Arndt Haensel | LAYING TROLLEY FOR COMPOSITION BLOCKS |
| GB2287012B (en) * | 1994-03-05 | 1998-02-25 | Johnson Peter A | Transport devices |
| US5639197A (en) * | 1995-09-07 | 1997-06-17 | The Drum Runner Material Handling Company | Universal carrier with optional integral force measuring device |
| DE29711165U1 (en) * | 1997-06-26 | 1997-12-18 | Prätorius, Ehrenfried, 32609 Hüllhorst | Concrete slab lifting transport and laying cart |
| DE102010060201B4 (en) * | 2010-10-27 | 2014-12-18 | Teccad Engineering Gmbh | delivery vehicle |
| CN103863840B (en) * | 2012-12-17 | 2016-01-27 | 信宜市恒大机械设备厂 | One removes brick equipment automatically |
| JP7079432B2 (en) * | 2018-03-08 | 2022-06-02 | 株式会社ダイセイ | Pavement laying machine |
| CN112982105A (en) * | 2021-03-23 | 2021-06-18 | 陕西华山路桥集团有限公司 | High-precision rapid installation construction method for high-quality special-shaped stone curb |
| CN113371047B (en) * | 2021-04-20 | 2022-10-18 | 四川川交路桥有限责任公司 | Automatic trolley for carrying materials for processing reinforcing steel bars |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3039632A (en) * | 1961-04-20 | 1962-06-19 | Flexicore Co | Slab laying cart |
| GB1400709A (en) * | 1971-09-02 | 1975-07-23 | Larsen A J | Device for laying of flagstones |
| DE2707495B2 (en) * | 1977-02-22 | 1979-07-05 | Allgemeine Strassenbaubedarfsgesellschaft Mbh, 2820 Bremen | Device for laying essentially plate-shaped road surface elements |
| DE7712606U1 (en) * | 1977-04-21 | 1977-10-20 | Dr. Barth Kg, 7500 Karlsruhe | Laying trolley for covering elements |
| DE3406854A1 (en) * | 1984-02-25 | 1985-09-12 | Anton Mehrings GmbH, 2940 Wilhelmshaven | Transport and laying barrow for plate-shaped or block-shaped road covering elements |
-
1987
- 1987-12-16 DE DE8716604U patent/DE8716604U1/en not_active Expired
-
1988
- 1988-12-07 AT AT88120475T patent/ATE78539T1/en not_active IP Right Cessation
- 1988-12-07 DE DE8888120475T patent/DE3873049D1/en not_active Expired - Fee Related
- 1988-12-07 EP EP88120475A patent/EP0320781B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE3873049D1 (en) | 1992-08-27 |
| ATE78539T1 (en) | 1992-08-15 |
| EP0320781A1 (en) | 1989-06-21 |
| DE8716604U1 (en) | 1988-03-03 |
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