Excavating – Snow or ice removing or grooming by portable device – Railway clearer
Patent
1980-01-16
1982-05-18
Eickholt, E. H.
Excavating
Snow or ice removing or grooming by portable device
Railway clearer
180 658, 280765, 414695, E02F 376
Patent
active
043297960
DESCRIPTION:
BRIEF SUMMARY
The present invention generally relates to excavating and load handling or loading machines.
Mobile excavators are generally constituted by a carrying chassis equipped with four single- or dual-type wheels and by a turret mounted on said chassis and carrying the working attachments and the driver's cab.
However, this solution is cumbersome; as the turret rotates above the tires and carries the cab, the minimum height of the machine is not compatible with the dimensions and functions thereof. In addition, this unnecessarily raises the point of articulation of the excavating attachment on the machine, reducing the depth of working by as much.
Other machines called "backhoe loaders" also exist, which are constituted by a chassis similar to those of agricultural tractors, carrying at the front a loading attachment and, to the rear, an excavator attachment. Such a solution is very widely adopted, but it gives a mediocre result and has numerous drawbacks, such as: the inefficiency of the attachments, the necessity of providing two attachments for similar functions, a low loading height, a limited rotation of the excavator attachment, the impossibility of providing a crane attachment on the machine, and the application of too great a load on the steering axle when the machine is working as a loader.
It is an object of the invention to create a mutli-use machine not having the drawbacks of the existing machines and furnishing, for minimum dimensions in height and in length, a maximum of possibilities, whilst comprising one sole attachment that may work as loader, excavator and crane, the arrangement being further such so as to allow a total rotation of the excavator and crane attachment and to ensure a good distribution of the load on the driving wheels when the machine works as a loader and for transporting loads.
To this end, the invention relates to a mutli-use excavating and load handling machine comprising a chassis carrying, towards one end, a power unit driving a driving axle equipped with driving wheels by which said chassis rests on the ground at this end, said chassis being provided towards its other end, with retractable stabilizers by which it may rest on the ground at this other end, said end carrying a turret mounted on the chassis via a slewing gear ring, this turret supporting the cab, a working attachment and a pair of retractable steering wheels.
According to a particular feature of the invention, the power unit is offset laterally with respect to the middle longitudinal axis of the chassis, and the working attachment is itself offset laterally with respect to the centre of the slewing gear ring of the turret, but opposite the offset of the power unit when this working attachment is directed towards this power unit, so that, for transport, the working attachment may be lowered with respect to the chassis, coming to the side of the power unit. The cab provided on the turret is then judiciously offset laterally with respect to the axis of rotation of this turret, on the same side as the power unit, so as to be in line therewith for transport and not to hinder the raising of the working attachment, which then passes to the side of the cab.
According to another feature of the invention, the working attachment is pivoted on the lower part of the turret, immediately above the slewing gear ring resting on the chassis.
According to yet another feature, the turret is of the type with total rotation so that the working attachment, which may receive for example a loading bucket, an excavating attachment or a crane attachment, as desired, may be slewed in appropriate manner with respect to the chassis.
According to a further suitable feature, the retractable steering wheels of the chassis are mounted on arms pivoted on the turret and able to be positioned by means of hydraulic jacks, these arms being movable between a transport position in which these wheels rest on the ground and a raised position. In this latter position, the steering wheels then suitably occupy a position which does not interfere with the
REFERENCES:
patent: 2295769 (1942-09-01), Zeilman
patent: 2602552 (1952-07-01), Orloff
patent: 3003649 (1961-10-01), Przybylski
patent: 3034670 (1962-05-01), Lafian
patent: 3107799 (1963-10-01), Briscoe et al.
patent: 3589538 (1971-06-01), Menzi
patent: 3606047 (1971-09-01), Schaeff
patent: 3777919 (1973-12-01), Konijn
patent: 3958813 (1976-05-01), Carey
patent: 4049070 (1977-09-01), Soyland
patent: 4183711 (1980-01-01), Schaeff
patent: 4241803 (1980-12-01), Lauber
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