Harvesters – Motorized harvester – With plural sources of power
Patent
1986-08-25
1988-01-05
Hirsch, Paul J.
Harvesters
Motorized harvester
With plural sources of power
56237, A01D 3486, A01D 3443
Patent
active
047167165
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD OF THE INVENTION
This invention relates to agricultural equipment, and more particularly to equipment which may be mounted off the end of a boom.
BACKGROUND ART
It has been proposed to provide various forms of mowers, slashers, etc. in extendible arms off tractors and other like vehicles enabling an hydraulic operation of the arm through action of suitably connected rams. These types of equipment are commonly employed along roadsides, up the sloped surfaces of embankments and other areas where more standard forms of motorised mowers or slashers cannot go. In an orchard there is a need to mow beneath trees without fouling of the trees and an extension is required if a mower or slasher unit is to be extended beneath the trees. The usual unit is not adapted to this task and is unnecessarily complex for the task of mowing over what is essentially a flat surface.
OUTLINE OF THE INVENTION
It is an object of the present invention to provide a work head to be mounted on a boom for operation off a support vehicle so as to be able to work beneath trees and other like objects whilst the support vehicle travels access ways between the trees and other like objects. It is another object of the present invention to provide a work head which is capable of varied selected operation as a mower or slasher and rotary tiller. it is a further object of the present invention to provide a work head which is able to be trailed in and out between objects with a great deal of stability. Other objects and advantages of the present invention will hereinafter become apparent.
The present invention achieves its objects by provision of a work head for mounting off a boom comprising a supporting housing having brakcet means thereon for attachment to the boom, forward roller means for rolling movement in operation over the ground beneath, said forward roller means being disposed on a horizontal axis extending perpendicularly of the line of foward motion of said work head extending along the leading edge of said work head, rearwood roller means for rolling movement in operation over the ground beneath being disposed on a horizontal axis extending perpendicularly of the line of forward motion of said work head extending along the trailing edge of said work head, and an outer roller means for rolling movement in operation over the ground beneath being disposed on a horizontal axis outwardly of the supporting housing in the sense of the boom side being oriented inwardly, said axis being angularly disposed relative to the axes of the forward and trailing roller means, said forward roller means and said outer roller means being disposed end to end across the leading edge of the work head, each of said forward, trailing and outer roller means being cylindrical bodies with conically shaped end pieces leading to shafts providing for their axial rolling support.
BRIEF DESCRIPTION OF THE DRAWINGS
In order that the invention may be more readily understood and put into practical effect, reference will now be made to the accompanying drawings which illustrate a preferred embodiment thereof and wherein:
FIG. 1 shows a form of boom to which the work head of the present invention may be applied;
FIG. 2 is a section through the boom of FIG. 1;
FIG. 3 illustrates the disposition of the boom of FIG. 1 on a tractor;
FIG. 4 is a front view of a work head in accordance with the present invention;
FIG. 5 is an end view of the work head of FIG. 4;
FIG. 6 is a plan view of the work head of FIG. 4;
FIG. 7 is a sectional view of a part of the work head of FIG. 4; and
FIGS. 8 to 11 show various views of the components of a multipurpose work head which may be incorporated in a work head according to the present invention.
METHOD OF PERFORMANCE
In FIG. 1, item 10 is a boom carrier bracket by which the boom assembly may be mounted to a tractor or other like vehicle. Supported on the boom carrier bracket 10, on a shaft passing therethrough, is a pinion 11 which may be chain type sprocket. The pinion 11 engages with a rack 12 which is a roller
REFERENCES:
patent: 3087296 (1963-04-01), Cowles
patent: 3604188 (1971-09-01), Mott
patent: 4074510 (1978-02-01), Teagle
patent: 4161858 (1979-07-01), Gerrits
patent: 4241565 (1980-10-01), Parsons
patent: 4502269 (1985-03-01), Cartner
Favier Allan G.
Favier Kevin A.
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