DE8631199U1 - Hand lever cart - Google Patents

Description

DIRK PRIEST
to Magney 1
5860 Iserlohn

The invention relates to a hand lever cart made of a welded steel construction, which, as a universal device for "pre-delivery" (Fig. 2 Fig. 1) and "drop-delivery" (Fig. 5) during forestry and logging work in weak to medium-strong tree stands, makes work considerably easier and faster.

In the tree stands mentioned above, trees that have already been sawn down cannot be felled.

Depending on the stand and tree species, around 80% of the sawn-down trees often remain hanging in the crown area. "felling levers" and "felling wedges" are inefficient when the "hangers" are accidentally brought down due to the high ergonomic load (small lever arm, additional heavy load on the forest worker's back) and the relatively small lever in relation to the weight and length of the tree.

The use of a logging horse or

The

that of a cable winch to pull the tree from the stump. This method is relatively expensive in terms of costs and time.

This is where the HAND LEVER TROLLEY comes into play, without the power parts described above.

It consists of two pneumatic rubber tires (Fig.1.4), connected by an angled axle (Fig.2 Fig.1.3)», on one side of which the attachable drawbar tube (Fig.1.2 and 3) is connected, which ends with a cross-welded handle. (Fig.1.1) On the opposite side of the axle, the load arm (Fig.2 Fig.2.2) or the holder (Fig.1.6) for the lever pliers (Fig.2 Fig 1.4) is welded.

The movably suspended lever tongs hold trunks with a diameter of 6-35cm.

The two horns (Fig.2 Fig1.5) are used for the pre-delivery of "crane lengths" (Fig.2 Fig 1).

A worker can use the 15kg HANDLEBARROW, which runs on two wheelbarrow wheels, to pull 400kg trees from the stand, even uphill, with the tree load resting exactly over the wheel axle. (Fig. 3.1)

This is made possible by a corresponding lever ratio (Fig.2 Fig.2), the ball-bearing pneumatic wheels, and the force a (Fig.3), whereby the worker uses his body weight

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(relieves the strain on the back), and the HAND LEVER TROLLEY steers or pulls in the desired direction. (Fig. 2)

The U-shaped axle enables the advance delivery of logs (Fig. 2) and offers a high ground clearance, so that even long logs can be loaded onto the log- «ndön üu8j? in the center of gravity, and so
can be moved easily.

Claims (2)

Protection claims: Il 1. Hand lever cart, characterized by a long steel tube drawbar with handle (Fig. 1, 1 and 2) and an opposite load arm (Fig. 2, Fig. 2, 2) connected by a U-shaped axle (Fig. 2, 3), which is five times shorter than the drawbar. 2. Hand lever truck according to claim 1, characterized by a movably suspended lever tongs (Fig. 2, Fig. 1, 4). 07.