JPH022161Y2 - - Google Patents

Description

[Detailed description of the invention] This invention uses a multi-film support that supports the side edges of the multi-film in a sequentially lifted state along the traveling direction of the inter-till machine when performing inter-tilling work between furrows covered with multi-film. It is related to the device.

Conventionally, when performing intertilling work between furrows covered with mulch film, a mulch film support device has been used that sequentially lifts the side edges of the mulch film along the traveling direction of the intertilling machine. As a support device, the side edges of the multi-film are generally held between two rotating rolls (upper and lower). However, since the multi-film is supported by the frictional force between the multi-film and the rotating roll, as muddy water adhering to the back side of the multi-film adheres to the surface of the rotating roll, the friction between the multi-film and the rotating roll gradually increases. The force may drop and the multi-film may come off between the rotating rolls. In addition, the multi-film held by the rotary roll must be sent backward in the direction of travel in accordance with the traveling speed of the inter-tillage machine, which requires a power transmission mechanism to transmit rotational force to the rotary roll, resulting in a complicated structure. It's getting old.

This invention was devised in view of these points, and the object is to provide a multi-film support device that has a simple structure and can reliably support multi-films.

This idea consists of rotating bodies that rotate in a plane substantially perpendicular to the axis of the frame at both left and right ends of a frame that extends in the left-right direction and is towed by a mobile agricultural machine and runs between furrows. By fixing the protrusions radially and moving the mobile agricultural machine with the rotating body having the protrusions positioned inside the side edge of the multi-film covered with the ridges, the rotating body and the protrusions can be moved along the progress of the mobile agricultural machine. The side edges of the mulch film are lifted up one after another, and the protrusions pierce the mulch film to ensure support of the mulch film.Furthermore, the protrusions pierced into the mulch film provide tensile force to the mulch film as the mobile agricultural machine advances. Because it automatically rotates backwards by
The structure is simple and does not require a power transmission mechanism for transmitting rotational force to the rotating body.

An embodiment of this invention will be described based on the drawings. An inter-tillage rotary 2 is connected to the rear part of the mobile agricultural machine 1 in the direction of movement, and a mounting portion 5 fixed to a frame 4 extending in the left-right direction is fitted into a mounting shaft 3 extending above the inter-tillage rotary 2. It is tightened and fixed in place. At both left and right ends of the frame 4, arms 6, which can be freely expanded and contracted in the left and right directions, are tightened and fixed by butterfly bolts 7, and at the tip of the arms 6, a disk 8, which is a rotating body, is attached to the end of the arm 6 by a mounting bolt 9. It is attached so that it can rotate freely around its axis. In addition,
The disks 8 are arranged in an inverted V-shape with respect to the traveling direction of the mobile agricultural machine 1. A plurality of pins 10, which are projections, are radially fixed to the outer peripheral portion of the disk 8.

In such a configuration, the disk 8 is positioned inside the side edge of the multi-film 11 covering the ridges, and the pin 1 is positioned as shown in FIGS. 3 and 4.
The mobile agricultural machine 1 is advanced with the 0 stuck into the multi-film 11. When the mobile agricultural machine 1 moves in the direction of arrow A shown in FIGS. 3 and 4,
Since the pin 10a stuck into the multi-film 11 is pulled in the direction of movement by the multi-film 11, the disc 8 rotates in the direction of arrow B, and the pin 1
Before 0a is removed from the multi-film 11, the subsequent pin 10b pierces the multi-film 11.
In this way, even without providing a power transmission mechanism for transmitting rotational force to the disk 8, the disk 8 automatically rotates and the lifted multi-film 11 can be easily sent rearward. Also, multi film 1
The pins 10 are sequentially inserted into the multi-film 1 to support and lift the multi-film 11.
Even when muddy water adheres to 1, it can be supported reliably. Moreover, since the pin 10 stuck in the multi-film 11 moves from the center side of the ridge toward the hem due to the rotation of the disk 5, the side edge of the multi-film 11 is pulled toward the hem of the ridge, and the pin 10 moves toward the hem of the ridge.
0 will surely pierce the multi-film 11. Therefore, the multi-film 11 is installed on the inter-tiling rotary 2.
multi-film 11 while preventing it from wrapping around.
The intertilling rotary 2 can perform intercultivation work up to the soil below the side edges of the soil.

This invention is configured as described above, so when the side edges of the multi-film are lifted one after another, the protrusions fixed to the rotating body are pierced into the multi-film, so even if muddy water etc. is attached to the multi-film, the multi-film can still be used. The film can be supported reliably, and the rotating body is automatically rotated by the tensile force of the multi-film acting on the pierced protrusions, thereby eliminating the need for a power transmission mechanism to transmit rotational force to the rotating body. This has advantages such as a simple structure.

[Brief explanation of the drawing]

The drawing shows one embodiment of this invention.
The figure is a plan view of the whole, FIG. 2 is an enlarged perspective view of the main parts, and FIGS. 3 and 4 are explanatory diagrams showing simplified support states of the multi-film. 1... Mobile agricultural machine, 4... Frame, 8... Disk (rotating body), 10... Pin (protrusion), 11...
multi film.

Claims (1)

[Scope of utility model registration request] A frame extending in the left-right direction that is towed by a mobile agricultural machine and runs between furrows is provided, and rotary bodies that rotate in a plane substantially perpendicular to the axis of the frame are provided at both left and right ends of the frame, and the rotation The body is placed inside the side edge of the multi-film covered with the ridges in a state where the multi-film is lifted up,
A multi-film support device characterized in that a plurality of protrusions that pierce the multi-film are radially fixed to an outer peripheral portion of the rotating body.