JPH0244652Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention has a planting device connected to the rear of the traveling machine via a four-link mechanism so that it can be driven up and down. This invention relates to a rice transplanter that is configured to be movable.

In such a rice transplanter, the planting device can swing left and right around the vertical axis relative to the main traveling machine, that is, can freely yaw, so it can rotate the machine at the edge of the field or follow curved ridges in deformed fields. When steering the
By yawing, the planting device can be moved to follow the trajectory of the traveling machine with little lateral sliding movement, thereby reducing the headland area due to small radius turns, It has the advantage of being able to be planted in an orderly manner along curved ridges.

However, in this case, when the machine turns at the edge of the field while traveling on the road or when being transported by truck, etc., when the planting device is raised to a non-working position above the ground, the planting device can freely yaw. When this occurs, there is an inconvenience in that the unexpected yawing of the planting device causes the planting device to collide with other objects, which can lead to dangerous situations.

An object of the present invention is to eliminate such inconveniences.

The rice planting device, which is connected to the rear of the traveling machine of the present invention so that it can be driven up and down via a four-link mechanism, is configured to be able to swing left and right around a single vertical axis with respect to the machine. In the machine, the vertical axis is
It is provided at the connecting part between the traveling main machine and the four-link mechanism, so that the entire four-link mechanism can swing left and right around the vertical axis, and the rear part of the traveling main machine and the four-link mechanism are A contact regulating member having contact surfaces at positions corresponding to both the left and right sides of the vertical axis is provided on each of the side ends of the machine, so that when the planting device rises to a non-working position by floating above the ground, both of the above-mentioned The present invention is characterized in that the planting device is swung back to a predetermined posture with respect to the main plant by abutment of the abutment regulating members.

According to this characteristic configuration, as the planting device, which is yawing around the vertical axis relative to the machine, is raised to the non-working position, both the contact regulating members on the machine side and the quadruple link mechanism side The system automatically returns the planting device to a predetermined position without requiring any special operations, and can be fixed so that it does not yaw in that position. It is possible to reliably avoid danger caused by unexpected yawing of the planting device when turning the machine, driving on the road, transporting by truck, etc. The planting device is then swung back to a predetermined position relative to the traveling machine and fixed.
The balance of the traveling machine when the planting device is raised to the non-working position, especially the left-right balance, can be maintained well. Moreover, the main component for returning to yawing is a component that is originally provided, but can be constructed by using the drive means for upward movement of the planting device. By simply adding a contact regulating member to each side of the connecting link mechanism, the desired purpose could be achieved with a simple structure and low cost. below,
Embodiments of the present invention will be described based on the drawings.

A planting device 2 is connected to the rear of the riding machine 1 so that it can be raised and lowered via a parallel quadruple link mechanism 3. Hydraulic cylinder 4
This is a riding rice transplanter in which the planting device 2 is connected to the main machine 1 together with the link mechanism 3 around the vertical axis X passing through the attachment part of the link mechanism 3 to the main machine 1.
It is configured to be able to swing (yawing) left and right with respect to the machine 1, and to be able to swing (roll) left and right with respect to the machine 1 around the longitudinal axis Y passing through the attachment part to the link mechanism 3. There is.

This machine 1 has a pair of lower links 3B, 3 in the link mechanism 3, when the planting device 2 yaws a certain amount with respect to the machine 1 in a state where the planting device 2 is lowered to the grounding work position.
By contacting the left and right ends of the contact regulating member 5 suspended between B, further yawing of the planting device 2 is prevented, and the main unit 1 of the planting device 2 is
The planting device 2 A yawing abutment regulating member 6 that swings back to a predetermined posture facing the same direction as the main machine 1 is provided so as to double as a mounting frame for the link mechanism 3. The link mechanism 3 has a mechanism that when the link mechanism 3 and the planting device 2 roll a certain amount relative to each other in a state where the planting device 2 is lowered to the grounding work position, the link mechanism 3 contacts the protrusions 7, 7 attached to the planting device 2. By hitting each other, further relative rolling of both 3 and 2 is prevented, and rolling of the planting device 2 with respect to this machine 1 is regulated within a certain range, and the planting device 2
A rolling contact regulating member 8 that swings and holds the planting device 2 back to a position parallel to the main plant 1 by contacting both the protrusions 7 and 7 as the device rises to the ground floating non-working position. is installed.

Note that although reference numerals are written in the claims section of the utility model registration for convenience of comparison with the drawings, the present invention is not limited to the structure of the attached drawings by such entry.

[Brief explanation of the drawing]

Fig. 1 is a side view of the main part, Fig. 2 is a plan view of the main part, Fig. 3 is an enlarged perspective view of the main part, Fig. 4 is an enlarged plan view of the main part, and Fig. 5 is a plan view of the main part. It is an enlarged sectional view taken along a line. 1... Travel main machine, 2... Planting device, 3... Quadruple link mechanism, 5, 6... Contact regulating member, X...
Vertical axis.

Claims (1)

[Claims for Utility Model Registration] 1. A planting device 2 connected to the rear of a traveling main machine 1 via a quadruple link mechanism 3 so as to be able to be driven up and down, with a single vertical axis X relative to the main machine 1. In a rice transplanter that is configured to be able to swing left and right around the machine, the vertical axis X is connected to the traveling main machine 1 and the four-link mechanism 3
The entire quadruple link mechanism 3 is configured to be able to swing left and right around the vertical axis Contact regulating members 6 and 5 having contact surfaces at positions corresponding to the left and right sides of the vertical axis A rice transplanter characterized in that the planting device 2 is swung back to a predetermined posture with respect to the main machine 1 by the contact between the contact regulating members 6 and 5. 2. A request for registration of a utility model in which the abutment regulating member 6 doubles as a member that abuts and regulates the left-right swing of the planting device 2 within a certain range when the planting device 2 is lowered to the ground-contact work position. range 1
The rice transplanter described in section.