DE4320245A1 - Combined lift and crane truck - Google Patents

Abstract

Lift trucks are state of the art. This also applies to small crane trucks which are manually operated for lifting small loads, for example when removing engines from cars in order to transport these engines onto a pallet. As soon as these small crane trucks have transported these engines onto a pallet, a lift truck must transport the pallet into another position. The novel invention connects this combination between lift truck and crane truck so that only one variation, namely as lift and crane truck, has to be purchased. This variation also relieves the parking area of the converted space, because two variations had to be stored previously, whereas only one truck is required in the case of the novel invention. If, for example, a heavy object had to be lifted previously out of a vehicle, either a fork-lift truck or powerful physical effort was necessary in order to transport an object onto a pallet. With the novel lift and crane truck this is done simply without problem. The lift truck with a long reach is moved under the vehicle. The heavy object is then pulled out of the vehicle with the lift and crane truck. A pallet is pushed under this suspended object. This heavy object is slowly put down on the pallet by hydraulic relief. The object can then easily be transported on this pallet.

Description

Pallet truck for the transport of pallets with heavy loads are state of the art today and generally indispensable. So that z. For example, heavy loads are loaded onto a pallet must be able to be lifted beforehand. This usually happens with the help of an additional one Crane or with a forklift or with a Chain hoist tied to rails.

For unloading heavy objects e.g. Example of trucks a tail lift or chain hoist attached to rails bound, or a forklift is required. All of these machines are very expensive and each Machine needs a parking space, which with expensive converted space must be paid for.

Smaller craft businesses are hardly able to handle heavy ones Transport loads over 500 kg.

A pallet truck is very often available. But this means that is already delivered on a pallet.

This maladministration should now be due to the new invention be resolved.  

To this end, the invention proposes one "combined lifting and crane trucks" before.

An existing pallet truck is retrofitted for this purpose, by welding 2 guide plates on the inclined plane become.

Between these guide rails is a telescope rectangular tube to be extended via a guide pin stored.

In the upper area of the inserted rectangular tube this pipe angled.

In the lower area of the bend is on the Undershooted a track. There are 2 gusset plates on the back of the rectangular tube welded.

The loop becomes one between these gusset plates Wire rope fastened with the help of a bolt.

This wire rope is then guided over a guide roller. This guide roller is mounted in a round pin. The round bolt is located in a guide sleeve stored on a thrust bearing.

Then we attach the wire rope in the front area to the Hydraulic housing attached, so here at this point a fixed point arises.

If the hydraulic pump is now operated via the hydraulic arm, this creates a tensile force on the wire rope, which the interposed rectangular tube in a vertical position emotional.  

The bend is horizontal to the pallet truck. By pumping again there is a slope up to outer end of the bend. A trolley, which is on the running rail, contains a crane hook.

Opening the hydraulics lowers the pallet truck again. At the same time, the crane hook is directed downwards. Now is a heavy object such. For example an engine from 500 kg are lifted on a pallet, so the Crane hook attached to the engine with a chain.

By pumping up the hydraulics, the motor is now up emotional.

As soon as an appropriate ground clearance is reached, a pallet is pushed under the engine and that Sinking on the pallet can begin. The engine is now on this palette.

The chain is then released from the hook and the pallet truck is then pushed completely under the pallet.

Example 2

Now want a heavy object from a truck area be lifted and unloaded, so the telescopic arm extended.

Then the running rail is connected via the hydraulics Trolley brought into a horizontal position in the hook of the trolley we now put another bottle train hooked.  

With this pulley, the weight is raised but the running track (which is also inside the rectangle tube can be stored) is the weight lifted relocated and secured with a locking pin.

The truck can now drive off and the weight is reduced with the help of the chain hoist lowered onto the pallet.

The chain hoist is then freed from its weight.  

Using a schematic representation, the Invention will be described in more detail.

Fig. 1 shows the lifting u. Crane truck in its lowest position. A weight is attached to the hook, and the lifting u. Crane truck is pushed below the pallet.

Fig. 2 shows the lifting u. Crane truck with extended cylinder. The fixed point of the wire rope on the hydraulic housing and the extension of the hydraulic cylinder have exerted a tensile force on the wire rope and brought the running rail with the weight into a horizontal position.

Fig. 3 shows the lifting u. Lowered crane truck, with the weight now on the pallet.

Fig. 4 shows the lifting u. Crane truck with the weight on it ready for transport.

The Hub u. The basic equipment of the crane truck is as finished pallet truck.

Lift truck no. 1 has an inclined plane, which is aligned as reinforcement to the lifting cylinder no. 8 . Guide plates No. 5 are welded on this inclined plane.

There is a rectangular tube No. 3 between the guide plates No. 5 .

In this rectangular tube No. 3 , an extendable rectangular tube No. 3 a is inserted and locked with the rectangular tube No. 3 a by bolt No. 3 b.

There are welded gusset plates No. 4 on the back of the rectangular tube No. 3 .

Between these gusset plates No. 4 , a wire rope loop No. 2 is attached.

The wire rope No. 7 is fixedly connected to the lifting cylinder hydraulic mechanism No. 6 via a guide roller No. 15 . It forms the so-called benchmark.

The rectangular tube No. 3 , in which the sliding element No. 3 a is inserted, has No. 3 gusset plates No. 2 on the front.

At this point there is the highest power. With this force, a heavy weight can over a chain can be dragged onto the pallet.

The sliding element No. 3 a, which is inserted into the rectangular tube No. 3 , is angled bluntly at one end.

At the bottom of the bend are guide rails or welded slide rails.  

A trolley no. 10 is mounted in these guide rails.

Trolley No. 10 contains a crane hook, which is anchored with a weight No. 11 over a chain. While the hydraulic arm No. 9 is now pumping the cylinder No. 13 out of the hydraulic housing No. 8 via the hydraulic pump No. 6 , a tensile force is created on the wire rope No. 7 .

As a result, the wire rope No. 7 is extended on its fixed point side and the length of the wire rope No. 7 is shortened via the control wheel No. 15 to the tie rod No. 4 . Characterized the rectangular tube No. 3 , which is fixed with a bearing pin No. 3 b between the guide plates No. 5 , pulled up, so that the weight No. 11 can now be brought into a horizontal position by extending the hydraulic cylinder No. 13 . After the weight No. 11 has been brought into a horizontal position, this weight No. 11 is manually transported to the center via a running rail and locked with bolt No. 13 a.

Pallet No. 12 is now at the highest carrying height.

Then the hydraulic system No. 8 is relieved and the hydraulic cylinder No. 13 is brought into its rest position. Weight No. 11 is now on pallet No. 12 .

By releasing the chain on the chain hook No. 10 , the pallet No. 12 is now raised again via the hydraulic system No. 8 and the weight can now be transported effortlessly.

The wire rope no. 7 impairs the storage target to be controlled insignificantly, because this wire rope is correspondingly flexible via the guide roller.

Claims (3)

1. characterized in that on a pallet truck a rectangular tube on the inclined plane of the truck between two sliding plates is articulated over a bolt and that this rectangular tube is connected via a rotatably arranged castor with a wire rope on one side with the rectangular tube and is firmly connected to the hydraulic housing on the other side. 2. Characterized in that failed Renem cylinder the crane so far is lifted that a trolley either below the rectangular tube or through Slitting the rectangular tube too a run inside the rectangular tube cat can be moved. 3. Characterized in that a flexible Wire rope with cylinder extended and the rotatability of the hook load Wheels and thus a steering guaranteed is.