CA1143209A

CA1143209A - Self-balanced cultivating device for plows

Info

Publication number: CA1143209A
Application number: CA000350789A
Authority: CA
Inventors: Erik H. Carlsson; Rolf E. Lindqvist
Original assignee: Overums Bruk AB
Current assignee: Overums Bruk AB
Priority date: 1979-04-26
Filing date: 1980-04-28
Publication date: 1983-03-22
Also published as: SE416698B; SE7903660L

Abstract

A B S T R A C T

A cultivating device for plows which is formed without a so-called land side, and thus creates a self-balancing effect on the tool, which thereby can be moved forwards with only slight resistance. The cultivating device for the plow is so constructed and arranged to create a turn-ing moment about the connecting point to a towing vehicle with the turning moment determining the working width of the tool.

Description

11~3209 This invention relates to a cultivating device for plows which comprises a holder intended to be fastened to a beam on the plow and to receive a plate-shaped exchange-able wear part, which extends obliquely both downwardly and forwardly from the holder, the flat side of the wear part being directed mainly in a forward direction.
Cultivating plows are known, The purpose of these devices is to adapt a plow to other operation than just plowing, and preferably to a treatment which is more surface-related. Such a treat-ment has been shown to be sufficient as complementary to plowing, on some occasions.
In devices of the above type, as well as in conven-tional plows, there is a so-called land side, i.e. a side which is moved parallel to the direction of movement of the cultivating device. The purpose of this side is to contri-bute to maintaining the device in the right directlon behind the towing vehicle, and to neutralize the side forces which are created by the mold board. This is particularly important ; for semi-mounted plows, which are connected to the towing vehicle by a single bearing and towing point.
A feature of the present invention is to provide a simple and inexpensive cultivating device which can be 2S fastened to a conventional plow, and which is self-balanced and provides the intended worl~ing wiclth without using a par-ticular land side.
In order that the invention will be more clearly ; ullderstood, it will now be disclosed in greater cletail with reference to the accompanyin~ drawin~s, in which~

.. , 3;2(~9 FIG. 1 is a side elevation view showing a com-plete cultivating device in accordance with the invention.
FIG. 2 is a view similar to FIG. 1 but showing the holder in the cultivatlng device, and FIG. 3 is a sectional view taken along the line III-III of FIG. 2.
As seen in the figures, the cult;vating device of the present invention comprises a holder which is refer-red to generally by the reference numeral 10. The holder 10 is secured to a beam 11 by means of bolts 12. The beam is fastened to a plow frame in a conventional manner (not shown). The holder consists of a side part 13 with holes 14 for the bolts 12, and has a front edge 15 which extends in a rearward and upward direction, and continues into a flange 16 in its lower area. The flange 16 has holes 17 through which bolts 18 for a plate-shaped wear part 19 can be inserted. The wear part 19 extends in a forward and downward direction from the holder, and is bevelled on its outer end, and also on its inner end. The wear ; 20 plate 19 can be turned when it has become worn, so that . the unused end can be used.
As appears from FIG. 3, the angle ~ between the side part 13, which is parallel to the direction of movement F, and the flange 16 is less than 90, preferably 60-80. The holder with the side part 13 only serves as a means to fasten the wear part 19 to the beam 11, and thus does not work as a land side. Thus, when using the plow for cultivating, the wear part is inclined with respect to the directlon of movement thereby neutralizing the side forces.
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Claims

The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:

1. In a cultivating device for plows which com-prises a holder intended to be fastened to a beam on said plow, the improvement comprising an exchangeable wear plate having a flat part which extends obliquely downwardly and forwardly from the holder, the flat part of said wear part being directed mainly forward, said wear plate having a relatively small width and wherein the flat part of said wear plate is inclined at a certain angle of inclination .alpha. in the range of 60°-80° with respect to the direction of movement.

2. A cultivating device as claimed in claim 1 wherein said holder comprises a flat side part, and further comprising fastening means for securing said flat side part to said beam, and the oblique edge of said flat side part extending rearwardly and upwardly and being provided with a flange that has means to fasten said wear plate to said holder.