Timber hauling device

Details Timber hauling device Timber hauling device

1998-11-13

2001-05-01

Morano, S. Joseph (Department: 3617)

Railways

Traction

Cable

C104S183000, C104S178000, C104S230000, C105S003000

Reexamination Certificate

active

06223660

ABSTRACT:

BACKGROUND OF THE INVENTION
The invention relates to a traveling device for hauling timber with a loading ramp for the wood.
DESCRIPTION OF THE RELATED ART
In mountainous terrain or terrain passable only with difficulty by conventional, self-propelled vehicles, such as swampy areas, the removal of tree trunks or blocks is very difficult and is done for example with all-wheel tractors with attached kickback cylinder shield and cable winches or by means of cableways with a supporting and a traction cable. In both cases only very limited carrying capacity can be achieved, i.e. only individual trunks or trunks in small numbers can be transported at one time. In addition, the use of cableways is complex and expensive and the movement of cableway superstructures is time consuming. Tractors in turn can be used only with moderate steepness and sufficient supporting capacity of the ground.
SUMMARY OF THE INVENTION
The object of the invention is to devise a traveling device for hauling timber with a loading ramp for the wood which can also be used in terrain no longer passable for conventional, self-propelled vehicles.
This object is achieved with a device with the features of claim
1
.
The device of the invention is not dependent on a conventional drive via wheels which presuppose sufficient wheel grip or the like for its locomotion in the two directions of travel, but can move up and down using the cables themselves in very steep terrain, good security against overturning of the vehicle being given by the cables.


REFERENCES:
patent: 3473486 (1969-10-01), Harmon
patent: 3769916 (1973-11-01), Hogan
patent: 4329104 (1982-05-01), Akiyama et al.
patent: 4754825 (1988-07-01), Scheffer
patent: 5655584 (1997-08-01), Glawson
patent: 5820066 (1998-10-01), Jaramillo et al.
patent: 2 263 117 (1973-10-01), None
patent: 28 05 610 (1979-08-01), None
patent: 28 49 149 (1980-05-01), None

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