JPS621843Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a support structure for an oblong roller mounted on the front or rear part of a working machine.

Conventional technology A long roller is attached to the front of an upcut-type rotary tiller to prevent the tilled soil from being pushed forward and also serves as a ruler wheel.Also, a long roller is attached to the rear of a fertilizing seeding machine or management work machine. It is known that a long pressure roller is rotatably supported by a support frame along the width direction of the work machine, and is supported via a support arm.

Problems to be Solved by the Invention Conventionally, the support frames and support arms of these well-known long rollers have been fixed by bolts, nuts, welding, etc., and the left and right spacing between the support arms is constant. When attaching to a work machine, it is necessary to prepare a dedicated device to match the width of each work machine, which is uneconomical because it lacks versatility.

Means to Solve the Problems Therefore, the present invention provides a long hole in the left and right direction at the mounting position of the support arm and the support frame, so that left and right adjustment can be easily performed. This provides a support structure for long rollers.

Embodiments The present invention will now be described with reference to illustrated embodiments.

In FIG. 1, reference numeral 1 indicates an up-cut type rotary tiller, and this rotary tiller 1 has the following features:
It is attached to a three-point link hitch of a tractor (not shown) via a top mast 2 and a pair of left and right lower link attachment rods 3, and receives power from the tractor through an input shaft 4, and rotates the tilling claws 5 in the direction of the arrow to perform tilling work. It's getting old. A long roller 6 having a length approximately equal to the width of the rotary tiller 1 is provided at the front of the rotary tiller 1 .

As shown in FIG. 2, the roller 6 is rotatably supported by a support frame 7 via a support shaft 8, and is used to till soil which is tilled and released forward by the tilling claws 5 of the rotary tilling device 1. It functions to prevent the lower link from being pushed forward, and is inserted into the fixing box 9 provided on the lower link mounting rods 3, 3.
It is supported by a support arm 11 whose height can be adjusted in the vertical direction by means of a fixing pin 10, and also serves as a ruler wheel (gauge wheel).

In the present invention, a mounting piece 13 is provided at the lower end of the support arm 11 at the mounting position of the support arm 11 and the support frame 7, and a mounting piece 13 is provided at the support frame 7 and has a long hole 12 in the left and right direction. The engaging pin 14 is engaged so as to be movable left and right.

In a long roller support structure having such a configuration, even if the distance between the lower link mounting rods 3, 3 changes depending on the size of the rotary tiller 1, the size of the tractor, etc. By moving the engagement pin 14 in the left-right direction within the elongated hole 12, the left-right spacing can be easily adjusted, and it can be easily adapted to rotary tillers of various sizes.

In addition, in the above embodiment, the mounting pieces 13, 13
In one case, the elongated hole 12 may be omitted and the engagement pin may be fixed.

In addition, in the above embodiment, the present invention was applied to an up-cut type rotary tilling device, but it can also be installed at the rear of a fertilizing seeding machine or a management work machine, or a wheat treading roller, a pressure roller, etc. This can be applied when a roller that is long in the left and right direction is attached to a working machine or a tractor.

Effects of the Invention As explained above, the long roller support structure of the present invention has a long hole in the left and right direction in the mounting position of the support frame and the support arm, so that the left and right spacing of the support arm can be freely adjusted. Therefore, even if there are slight variations in the size, width, etc. of work equipment and tractors, one type of long roller can be used for various types of equipment, making it versatile, and there is no need to prepare a roller for each work equipment. It is economical because there is no space between the support arms, and it is easy to adjust the spacing between the support arms and attach/detach it to a working machine or a tractor, thereby reducing production costs.

[Brief explanation of the drawing]

FIG. 1 is a side view of the entire up-cut rotary cultivating device to which the present invention is applied, FIG. 2 is a rear view of the roller support structure, and FIG. 3 is a rear view showing how the same is used. 1... Rotary tillage device, 2... Top mast, 3... Lower link mounting rod, 4... Input shaft,
5... Tilling claw, 6... Roller, 7... Support frame, 8... Support shaft, 9... Mounting box, 10...
...Fixing pin, 11... Support arm, 12... Elongated hole, 13... Mounting piece, 14... Engaging pin.

Claims (1)

[Scope of utility model registration request] A long roller rotatably supported by a support frame along the left and right width directions of the work machine is supported at the front or rear part of the work machine via a support arm, wherein the support arm A support structure for a long roller, characterized in that a long hole in the left and right direction is provided at the mounting position of the support arm and the support frame, so that the left and right width of the support arm can be freely adjusted.