JPS6121005A - Hitch apparatus of working device in agricultural machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to agricultural machinery, and is used to connect a seeding machine or other working equipment to the rear of a tractor, tiller, or the like.

[Prior art]

Conventional working equipment coupling devices in agricultural machinery, as seen in Utility Model Publication No. 57-12806, have been used to connect multiple seeding machines and other working equipment individually in the left and right directions with respect to the tool bar. It was meant to be slid and aligned with the ridges.

[Problem that the invention seeks to solve]

Therefore, during the forward and return journeys during work, it was difficult to move a plurality of work implements left and right at the same distance from the machine body.

In contrast, according to the present invention, a plurality of working tools are adjusted to the left and right with the same spacing, and work can be done rationally. Because of this, the attachment part is torsioned and the movement lacks circularity, but this is relaxed by being suspended by a spring, and has the characteristic of smooth movement.

[Means to solve the problem]

In order to solve this problem, the present invention uses the following technical means.

In other words, a movable rod is attached to the support frame at the rear of the machine so that it can move in the left and right direction, and a seeding machine and other working devices are attached to the movable rod using a pair of upper and lower connecting rods that protrude rearward from the movable rod. The lower end of the fishing rod is attached so that it can move in the vertical direction, and the upper end protrudes from the rear. This is a device for connecting a working implement in an agricultural machine, characterized in that a spring is interposed between the working implement and the implement.

[Action and effect]

Since the present invention is configured as described above, when it is desired to move the position of the working implement in the left and right direction on the return trip compared to the outbound trip during agricultural work.

Move the moving rod in the desired left and right direction relative to the receiving frame.

Then, the intervals between multiple work tools remain the same,
Move left and right. Since these working tools protrude significantly rearward, a large torsional force acts between the moving rod and the receiving frame, resulting in unbalanced surface pressure and uneven movement, as well as localized wear. However, in this invention, since the working tool is supported via a spring from the upper end of the fishing rod whose base rotates on a vertical axis, the rod is rotated by a large width. It is characterized by smooth movement, less local wear, and less variation in the ground pressure of the work equipment after it moves from side to side.

〔Example〕

Next, we will explain the seeding machine to which this invention was applied.
Reference numeral 1 indicates a tiller, which is equipped with rotary tiller claws (2) and a body (3) that protrudes rearward above the rotary tiller claws, and is arranged to be moved up and down with respect to the tractor.

Reference numeral (4) denotes a receiving frame, which is detachably attached to the body (3) with a bin (5), and at the rear thereof, a horizontally elongated moving rod (6) is provided so as to be movable in the left-right direction. Its composition is
The longitudinal section of the rear part of the receiving frame (4) is made rectangular, and there are pins (8) with multiple bearings (7) in the vertical and horizontal directions.
The movable rod (6) is supported between the upper and lower bearings (7) (7), and the screw rod (9) is inserted from the top of the receiving frame (4).
Screw it in toward the moving rod (6), and use the tip to loosen it.

It is better to fix it.

01 is a horizontal rod, located diagonally at the rear lower part of the movable rod (6).

It is connected to this by a support frame Ql) Ql).

(2) α] are brackets that face each other in the front-rear direction, and both ends of a pair of upper and lower connecting rods Q4"l Q4) are each pivoted, so that one bracket (3) It is made to move vertically parallel to α2, and the front bracket 02 is fixed to the horizontal rod αO, and the rear bracket αa is fixed to the horizontal mounting rod 09. For the mounting rod α9,
It is preferable to provide a mounting seat Q6, which can be detachably attached to the bracket α using a bolt αη or the like.

(181Q110 is a seed sowing machine, and its feeding rotor is rotated by a chino from a pressure roller holder supported at the lower end of the rod 0909, which is installed at a fixed interval in the left and right direction on the mounting rod aG, and whose tip rotates. It is made to.

■υ is a lower fishing rod, the lower end of which is attached to the receiving frame (4) so as to rotate around a vertical axis, and the upper part of which protrudes diagonally rearward, and the upper end and mounting seat αG There is a spring fence between the two. In addition, it is desirable to attach one end of the spring (A) with a screw rod so that the strength can be adjusted.

In the seeding device configured in this way, the screw rod (9) is loosened and the movable rod (6) is pushed in the left and right directions. Then, the moving rod (6) slides on the bearing (7) (7) and moves in a predetermined direction, and the pair of sowing devices (to) α& move left and right while maintaining the same distance. Here, since this sowing device αεαa largely protrudes backward from the receiving frame (4), a biased force acts between the moving rod (6) and the bearing (7) (7), but the lower rod QD Since it is supported from the upper end via a spring (A), the biased force is largely alleviated, making movement smoother and localized forces lessened, reducing damage. In addition, the lower end of the fishing rod 12η is
Since it is rotatable around the vertical axis, as the movable rod (6) slides, this lower rod Qυ automatically rotates and supports the rod no matter where it is moved. Power does not fluctuate widely.

[Brief explanation of drawings]

FIG. 1 is a side view of a working implement coupling device in an agricultural machine according to the present invention, and FIG. 2 is a plan view thereof. FIG. 3 is an enlarged cutaway side view of a portion thereof. The symbols in the figure are as follows. (3) Machine body (4) Receiving frame (6) Movable rod α chrysanthemum Repeating (to) work equipment? υ Lower fishing rod (2) spring

Claims (1)

[Claims] A moving rod is attached to the support frame at the rear of the machine so that it can move left and right, and a seeding machine and other working devices are moved vertically using a pair of upper and lower connecting rods that protrude rearward from this moving rod. The lower end of the fishing rod is movably attached and has an upper end protruding rearward, and the lower end of the fishing rod is attached to the receiving frame so as to be rotatable around the vertical axis, so that the upper end of the fishing rod and the work implement are connected to each other. A device for connecting working implements in an agricultural machine, characterized in that a spring is inserted between the two.