DE948567C - Device for digging up soil, in particular for agricultural purposes - Google Patents

Description

ISSUED SEPTEMBER 6, 1956

L 19075 III 145 a

Addendum to patent 879

The invention relates to a device for digging up soil, in particular for agricultural purposes, consisting of a substantially constant spacing from the ground on this guided and self-moving body of rotation, for example a drum, and on this pivotably suspended and inevitably in the vertical plane guided digging spade, according to patent 879 478.

In order to achieve the set goal, the device according to the main patent is the grave spade exposed to an inevitable deflection after crossing the apex of their career paths mediated by the rotational body and consequently essentially straight and perpendicular to the sole of the clod in the intended Depth of the ground, with a sudden onset after reaching the depth of the clod, movement of the corresponding digging spade causing the pierced clod to break away perpendicular to the spade surface. For this purpose, the spades are on articulated parallelograms suspended by means of curved fingers sliding along a specially shaped curved track be moved according to the intended digging movement.

In contrast, the invention brings an improvement in terms of inconsistencies inclined joint parallelograms.

The essence of the invention is seen in it. that on the end walls of the stored on the shaft Drum one or more essentially triangular shaped pieces carrying the digging spade held in bearings at one triangle apex and both with an adjacent triangle apex

ίο Limited movement in slots of the drum pivotable as well as in an eccentrically arranged on the frame with respect to the shaft, im essentially elliptical curved path are guided, with the shorter lever arm of the double-armed Lever formed, scbwenkverschieblich at the remaining triangular tip of the fittings held grave spade handle is supported by means of a handlebar on a collar of the shaft.

Another essential characteristic comes from the

so description emerges.

In the drawing, the object of the invention is shown for example, namely there a side view of the rotating body (drum) of the device with the arrangement of three inevitable guided digging spade shown.

On the frame 12, which is expediently held in a cantilevered manner by the machine frame of a tractor the rotary body io driven by the machine is mounted on a shaft 13. To the End walls of the rotating body (drum) 10 are essentially triangular shaped pieces 15, 15 ', 15 "suspended in bearings 14,14 ', 14", namely at a triangle point. The neighboring triangular apex of the fittings is provided with a guide

The guide pins slide in slots 18, 18 ', 18 "in the end walls of the drum 10, so that the shaped pieces 15, 15', 15" can be pivoted with limited movement, while they are equiaxed arranged sliding rollers 33, 33 ', 33 ″ roll along in an approximately perpendicular elliptical cam track 34 which is fixedly arranged on the frame 12 during the rotary movement of the drum 10. Then a predetermined pivoting of the shaped pieces 15, 15 ', 15 "is achieved at very specific points. 32 ', 32 ¹ "with a collar 35 provided on the shaft 13, so that the respective spade 20, 20' or 20" used shortly before and shortly after its working position moves essentially vertically downwards or upwards executes directed movement. The curve pattern ellipse 34 is provided on its lower part with an indentation running obliquely to the rear and upward, which merges back into the normal elliptical path 34 at the highest point with a small, downwardly directed bend 34 ″.

It is thereby achieved that the digging spade pushing vertically downwards into the soil at the kink 34 'of the indentation of the curved path ellipse 34 is deflected obliquely upwards so that the clod 31 is broken loose and taken away by the spade. If then the respective roller 33, 33 'or 33 ″ reaches the bend 34 ″ of the cam track 34, each falls jerk the loaded spade back a little so that the clod separates from the spade loosens and falls back into the ground with the weather side first.

The collar 35 can rotate on the shaft 13 or both together with respect to the drum 10 and be provided lockable, whereby a central adjustment of all grave spades accordingly the present earth conditions is easily possible.

Claims (2)

PATENT CLAIMS: ι. Device for digging up soil, in particular for agricultural purposes, consisting of from a substantially constant distance from the ground above this guided and self-moving rotating body, for example a drum, and on This grave spade, which is suspended so that it can pivot and is inevitably guided in the vertical plane, according to patent 879 478, is characterized by records that on the end walls of the drum (10) mounted on the shaft (13) one or several essentially triangular shaped pieces (15, τ 5 ', 15 ") at a triangular tip in bearings (14, 14 ', 14 ") held and with an adjacent triangular point both in slots (18, 18', r8") of the drum (10) can be swiveled with limited movement as well as in one opposite the shaft (13) eccentrically on the frame (12) fixedly arranged, essentially elliptical curved path (34). are performed, with the shorter lever arm designed as a double lever arm on the remaining triangular tip of the shaped pieces of the grave spade handle held pivotably (16, 16 ', 16 ") by means of a handlebar (32,32'32") a collar (35) of the shaft (13) is firmly supported. 2. Device according to claim 1, characterized in that that the lower part of the curved path ellipse suspended with a vertical longitudinal axis (34) running diagonally backwards and upwards against the direction of travel of the device is pressed in, the bevel at the highest point with a downward small bend (34 ") joins the normal elliptical path again, so that at At this point the clod (31) is loosened from the upwardly reaching spade (20, 20 'or 20 ") There is a jolt. iao 1 sheet of drawings 5 509 696/67 2.56 (609 603 8.56)