JPH09252603A - Structure of ridging unit fitting part of rear cover for farming machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to adjust the cut part of an operation part cover irrelevantly to whether a ridging unit fitted to a cultivating operation machine is large or small in size. SOLUTION: The bottom open type cut part 16 into which the ridging unit is inserted is formed on the rear cover 8 which covers the rear of a cultivating operation part and a lid 17 which covers the cut part 16 when the cut part is unused is fitted. An adjusting spacer 18 of specific width for adjusting the size of the inner peripheral edge of the cut part 16 is provided. Then the adjusting spacer 18 is fitted detachably along at least the inner peripheral edge of the cut part 16. Further, the adjusting spacer 18 is fitted detachably to the outer peripheral edge side of the lid 17.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ridge mounting structure for a rear cover of a working machine such as a tilling work machine.

[0002]

2. Description of the Related Art Generally, a ridger is attached to the rear of a tilling work machine and used at the same time as the tilling work machine or after the plowing work. The rear cover that covers the upper part of the ridge is provided with a mountain-shaped notch that passes through the upper center of the ridge in the front-rear direction, and a lid that detachably covers the notch when the ridge is not used.

[0003]

However, while there are large and small ridges depending on the size of the ridge, the size and shape of the notch on the rear cover side are constant. Generally, a notch corresponding to a large one is provided.Therefore, when a small ridge erector is attached, a large gap is generated between the inner peripheral edge of the notch and the outer periphery of the upper part of the ridge erector. There was a problem that spillage occurred from this gap and it was not possible to form erect ridges.

[0004]

The present invention solves the above-mentioned problems. First, an open notch 16 for inserting a ridger 11 is formed in a rear cover 8 covering the rear of the tilling work part 6. Then, in a mechanism in which a lid 17 is attached to cover the notch 16 when the notch is not used, an adjusting spacer 18 having a predetermined width for adjusting the size of the inner peripheral edge of the notch 16 is provided, and the adjusting spacer 18 is at least the notch. The feature is that the mechanism is detachably attached along the inner peripheral edge of 16.

The second feature is that the adjusting spacer 18 is detachably attached to the outer peripheral edge of the lid 17.

[0006]

1 is a rear perspective view of a tilling work machine 1 connected to a work vehicle (not shown) such as a tractor. The work machine 1 is vertically movable to a work vehicle by a hitch portion 2 at the front center. The working unit 6 is connected to the inside of the working machine frame 3 and is composed of a rotary tilling claw or the like supported by the rotary shaft 4. The working unit 6 is connected to the rear end of the main cover 7 at the upper surface and at the rear side. Each is covered with a rear cover 8 having a V-shaped cross section.

A well-known ridger 11 is attached to the center of a horizontal tool bar 9 forming a part of the working machine frame 3 by a mounting support 12 to form the lower end of the ridger 11 and to advance the vehicle. The plowed soil 13 is pushed to both sides to form the groove between the ridges, and the plow spatula 13 is inserted into the working part 6. At the upper part of the plow spatula 13, a guide surface 14 is formed so as to project rearward and upward in a ridge shape. Protrudes upward through a notch 16 formed in the rear cover 8 and having a mountain-shaped lower open shape.

2 and 3 show the notch 16 and the notch 16
2 shows a mounting structure with a lid 17 which is detachably attached to the rear cover 8. In this example, the notch 16 has a mountain shape whose front end extends to the vicinity of the front end of the central portion of the rear cover 8. This shape and size are large uprights. The upper guide surface 14 is inserted or accommodated.

On the other hand, the lid 17 which is detachably attached to the cutout 16 corresponds to the inner peripheral shape of the cutout 16 in accordance with the size and shape of the upper guide surface 14 of the small upright device. It has a substantially similar mountain shape or a substantially triangular shape.
A mountain-shaped gap having a substantially parallel width is formed between the inner peripheral edge of the notch 16 and the outer peripheral edge of the lid 17, which is formed with the rear end side (bottom side) of the lid 17 aligned with the rear end line of the rear cover 8. To cover it, an adjusting spacer 18 of the same shape is prepared.

At the inner peripheral edge of the cutout portion 16, a receiving plate 19 having a constant width formed corresponding to the shape of the inner peripheral edge is fixed from the back side, and a receiving portion 16a projecting inwardly with a uniform width is stepped. It is formed so as to descend. On the other hand, the adjustment spacer 18 is also made up of two large and small substantially similar plates having a predetermined width (the mounting plate 18
a and the receiving plate 18b) are shifted in the front-rear direction and overlapped with each other, and are integrally fixed by a bolt 21 or the like, and the upper surface of the protruding end of the receiving plate 18b forms a step.

With this structure, the back surface of the placing plate 18a is placed on the receiving portion 16a in a circumferentially fitted state, and the receiving plate 18b is placed.
The outer peripheral back surface of the lid 17 is placed on the upper surface in a fitted state.
As a result, when the adjusting spacer 18 and the end of the lid 17 are sequentially placed on the cutout portion 16 and placed, the upper surfaces of the adjusting spacer 18 and the lid 17 are flush with the upper surface of the rear cover 8. 20a and 20b are both the adjustment spacer 18 and the lid 1.
The lower end (rear end) of 7 is the rear cover 8 or the adjustment spacer 18.
It is an attachment for abutting and locking for stably locking to the lower end side and aligning the upper surface of the lower end side.

Further, the receiving plate 19 on the side of the cutout portion 16 and the mounting plate 18a on the side of the adjusting spacer 18 are removably fixed to each other by bolts 21 in a superposed state. Also the lid 17
A clamper with a lever 23a for engaging and disengaging and a hook 23b is symmetrically located on the upper surface, and a bolt 2 is used as a fixture 23.
1 is detachably attached, and when the attachment 23 is fixed to the adjustment spacer 18, the attachment 23 is attached to the two locking tools 24 attached on the adjustment spacer 18, the lever 23a and the hook 23b. It is attached and fixed so that it can be engaged and disengaged.

Further, when the lid 17 and the adjusting spacer 18 are integrally attached and fixed and attached to the rear cover 8 side,
First, after removing the attachment 23 from the lid 17, the lid 17 is removed.
And the adjustment spacer 18 to the front position over the side (Note: this reattachment fixes the lid 17 and the adjustment spacer 18 together), and then the lever 23a and the hook 23b.
By the above, the attachment 23 is detachably locked and fixed to the locking tool 26 attached to the rear cover 8 side. The adjustment spacer 18 and the lid 17 can be fixed by fastening with the bolt 21 as in the case of attaching the adjustment spacer 18 to the notch 16.

When the upright device 11 is not used by the above mechanism, the adjustment spacer 18 and the lid 17 are integrally fixed by the attachment 23 and attached to the notch 16 of the rear cover 8. At this time, each mounting portion may be fixed by bolting.

When the large ridger 11 is used, the ridger 11 is attached with the maximum notch size obtained by removing the adjusting spacer 18 from the notch 16, and when the small ridger is used, the adjusting spacer is used. Attach only 18 to the notch 16 with the small notch size. As a result of this
The gap between the inner peripheral edge of the cutout portion 16 and the upper guide surface 14 of the upright device 11 is maintained substantially constant and appropriate regardless of whether the device 1 is large or small, which causes problems such as spillage during upright work. Can be prevented.

The adjustment spacer 18 is not necessarily limited to one, but may be divided into a plurality of pieces to have a structure corresponding to a large, medium, small or larger ridge device size.

[0017]

According to the present invention configured as described above, when the ridger is attached to the working machine, the gap between the ridger and the inner peripheral edge of the notch which changes depending on the size of the ridger is provided. Since it can be adjusted to be smaller by attaching and detaching the adjusting spacer, there is an advantage that it is possible to prevent or suppress the occurrence of spillage or the like from a gap that becomes large depending on the size of the ridge.

By making the adjusting spacer attachable to and detachable from both the rear cover side and the lid side, the spacer can also be used integrally with the lid as a part of the lid covering the notch when the notch is not used. .

[Brief description of drawings]

FIG. 1 is a rear perspective view of a tillage implement equipped with a ridger.

FIG. 2 is an exploded enlarged plan view of a notch portion of a work machine rear cover.

FIG. 3 is an enlarged plan view in which a lid of a rear cover and an adjustment spacer are integrally fixed.

FIG. 4 is an enlarged plan view showing a state in which an adjustment spacer is attached to the rear cover.

[Explanation of symbols]

 1 Working Machine 6 Working Section 8 Rear Cover 11 Ridge 16 Cutout 17 Lid 18 Adjustment Spacer

Claims (2)

[Claims] 1. A rear cover (8) covering the rear of the tilling work section (6) is provided with an open cutout (16) through which a ridger (11) can be inserted, and the cutout (16) is formed when the cutout is not used. 1
In a mechanism having a lid (17) for covering 6), an adjustment spacer (18) having a predetermined width for adjusting the size of the inner peripheral edge of the cutout portion (16) is provided, and the adjustment spacer (18) is provided at least in the cutout portion (18). 16) The structure of the upright mounting portion of the rear cover for the working machine, which has a mechanism for detachably mounting along the inner peripheral edge of 16). 2. The structure of the upright device mounting portion of the rear cover for a working machine according to claim 1, wherein the adjusting spacer (18) is a mechanism for detachably mounting to the outer peripheral edge side of the lid (17).