JPH0423901A - Tilling cover - Google Patents

Abstract

PURPOSE:To readily attach a sub-tilling cover by disposing a sealing member between the joint flange of a main tilling cover and the joint flange of a sub- tilling cover and fitting the joint socket and joint pin of both the joint flanges each other to nipping the sealing member with both the joint flanges. CONSTITUTION:Upwardly projected joint flanges 7, 8 provided with mutually fittable joint socket and pin, respectively, are disposed at the end of a main tilling cover 2 of a tilling machine 1 and at the end of a sub-tilling cover 4 to be jointed to the end of the main tilling cover 2 toward a tilling shaft 3, respectively. The joint socket 5 is fit to the pin 6 to join the joint flanges 7, 8 to each other through the sealing member 9. The sub-tilling cover 4 is thereby readily attached or detached and the disposition of the sealing member permits to unnecessitate the direct bonding of the joint flanges 7 and 8 to each other and to prevent the generation of rust and spaces therebetween.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a tilling cover for a tilling device, and is often used in tilling devices for tractors.

(Prior art and problems to be solved by the invention) In a tilling device, the tilling width is determined by the length of the tilling shaft having tilling claws, and the tilling shaft is expanded or contracted according to the tilling width. The tilling cover that covers the upper side of the tilling shaft can also be expanded or contracted. However, in the past, a joint flange was provided protrudingly from the joint part of the tillage cover, and the joint flanges were directly overlapped in the axial direction and fixed by tightening with bolts, nuts, etc. Therefore, the operation of joining and connecting the two joining flanges is troublesome, and over a long period of time, the space between the joining flanges is likely to become clogged with mud and cause rust, and gaps are likely to be created, causing mud to blow out.

(Means for Solving the Problems) The present invention provides that the main tilling cover 2 of the tilling equipment W1 and the auxiliary tilling cover 4 joined to the end side of the tilling shaft 3 direction of the main tilling cover 2 are joined to each other at their opposing edges. Mating socket 5
and a joining flange 7 having a joining pin 6 and projecting upward.
A sealing member 9 is provided between these joining flanges 7 and 8.
The tillage cover is configured to be connected by fitting the joint socket 5 and the joint pin 6 with the two interposed therebetween.

(Operation and Effect of the Invention) When increasing the tillage width, the joint flange 8 of the sub-tillage cover 4
is brought close to the joint flange 7 of the main tillage cover 2, and while the joint socket 5 and the joint pin 6 are fitted, the seal member 9 is interposed between these joint flanges 7 and 8 and held. . In this way, the joint socket and the joint pin 6
By fixing the gap between the sub-cultivation cover 4 and the sub-cultivation cover 4, the installation of the sub-cultivation cover 4 is completed.

In this way, while interposing the sealing member 9 between the joint flange 7 of the main tillage cover 2 and the joint flange 8 of the sub-tillage cover 4, the joint socket 5 and the joint pin 6 of the surface joint flange 7. Since the sealing member 9 is sandwiched by fitting with the auxiliary tillage cover 4,
Removal is simple and easy, and the interposition of the seal member 9 prevents the joining flanges 7 and 8 from directly overlapping each other, making it difficult for rust, gaps, etc. to occur between them.

(Example) In turning, the tilling device [1 is connected to the top link and lower link of the tractor and is raised and lowered by a lift arm, and the tilling transmission case 10 located in the center
A tilling frame 11 extending to the left and right sides, a mast 12 projecting upward, an input shaft 13, etc. are provided on the upper part of the frame 11, and a tilling shaft 14 extending to the left and right sides is provided below. 3 is connected to the input shaft 13 for transmission. The plowing frame 11 is provided with a connecting pin 15 to be connected to a lower link on the tractor side, and the mast 12 is connected to a top link, so that the tilling frame 11 is connected to the tractor so as to be freely controllable in elevation. Further, a hitch link 16 protrudes rearward from the tillage frame 11 so as to be movable up and down by means of an adjustment handle 17, and a gauge wheel 18 is attached to the rear end of the hitch link 16.

The tilling device 1 has a cover that covers the upper side of the rotating surface of the tilling claws 14. This cover consists of a main tilling cover 2 that covers the axial width of the tilling shaft 3, and an auxiliary tilling cover 4 that covers the upper side of the amplifying tilling shaft 19 connected to both left and right end portions of the tilling shaft 3.

The main tilling cover 2 is attached to a bracket 20 or the like on the lower side of the tilling frame 11, and the tilling transmission case 10 projects above and below the main tilling cover 2. At both left and right edges of the main tillage cover 2, a joining flange 7 of an appropriate height is integrally provided on the upper side over the front and back width, and a joining socket 5 having a pin hole is provided on one side of the joining flange 7. Fixed.

The auxiliary tillage cover 4 has the same cross-sectional form as the main tillage cover 2, and a joint flange 8 having the same shape as the joint flange 7 is provided on the inner edge thereof.
A joining pin 6 that can be inserted into the pin hole of the joining socket 5 is provided. Further, a side cover 22 is provided on the outer edge of the auxiliary tilling cover 4 so as to be replaceable with the joining flange 7 of the main tilling cover 2. When removing this sub-tilling cover 4.

This side cover 22 is attached to the outer edge of the main tilling cover 2. Reference numeral 23 denotes a fastener, which is provided on the joint socket 5, and when the joint pin 6 is fitted, the attachment of the sub-cultivation cover 4 is fixed by tightening the fastener 23.

The sealing member 9 is interposed between the left and right joining flanges 7.8, and is made of an elastic material such as a rubber material. The attachment may be simply by clamping between the joint flanges 7 and 8, or it may be integrally attached to either one, for example, the joint flange 7 on the main tillage cover 2 side. The end portion of the seal member 9 may be slightly protruded from the joining flange 7.8, or a seal retaining pin or the like may be protruded so that a part of the seal member 9 is fitted and retained. In this way, when attaching the auxiliary tillage cover 4, the sealing member 9 can be prevented from moving, falling off, etc., and the attaching work can be performed more easily.

On the rear side of the main tillage cover 2, a main rear cover 24 is provided with the same width and is rotatable so that a ground flattening portion 26 at the rear end can move up and down around the rear end side of the main tillage cover 2. It is supported by the upper hitch link 16 via a spring 25. This spring25. As a result, the leveling section 26 leveling the soil surface.

A sub-rear cover 27 can be attached to the left and right end portions of the main rear cover 24 in the same manner as the joining flange 7.8. 28 is a joining flange on the main rear cover 24 side, 29 is a joining flange on the side of the sub rear cover 27 opposing this, and 30 is a sealing member between these surface joining flanges 28 and 29. 30 is a joining socket, 31 is a joining pin, and 32 is a tightening knob.

The outer end of this sub-rear cover 27 is connected to the side cover 22.
However, it is not fixed to this side cover 22.

Further, the flat portion 33 at the rear lower end of this sub-rear cover 27 is separate from this sub-rear cover 27, and a bracket 34.3 is provided.
5 is attached to the right and left outer ends of the flat portion 26 of the main rear cover 24 by being pivoted 38 so as to be foldable, and rotates up and down against the dead center spring 36. As shown in FIG. 3, it can be folded and held on the rear side of the flat portion 26. By folding the leveling section 33 in this way.

The gauge foil 18 is placed in the open position of this flattened portion 33.
can be located.

Reference numeral 37 denotes a removable cover plate attached to the leveling section 26. When a cultivator is attached to the pitch link 16 and work on the platform is performed, the cover plate 37 is removed. In addition, in the case of rotation, a cover plate 37 is also provided at the left and right outer ends of the flattened portion 26, and the foldable flattened portion 33 is attached to the lid plate 37.

[Brief explanation of drawings]

The figures show one embodiment of the present invention, in which Figure 1 is a slope view seen from the front side, Figure 2 is a slope view seen from the rear side, and Figure 3 is a slope view seen from the rear side.
The figure is a perspective view showing the operation of a part thereof. (Explanation of symbols) 1 Tilling device 2 Main tilling cover 3 Tilling shaft
4 Sub-cultivation cover 5 Joint socket 6
Joint pin 7.8 Joint flange 9 Seal member

Claims (1)

[Claims] A joint socket 5 and a joint pin 6 that fit into each other are provided at the joint opposing edges of the main tillage cover 2 of the tillage device 1 and the sub-tillage cover 4 joined to the end side of the main tillage cover 2 in the direction of the tilling shaft 3.
A tillage cover is provided with protruding joining flanges 7 and 8 on the upper side, and is connected by interposing a sealing member 9 between the joining flanges 7 and 8 by fitting the joining socket 5 and the joining pin 6.