JPS5857127B2 - Planting device drive lifting device in rice transplanter - Google Patents

Description

[Detailed Description of the Invention] The present invention is configured such that the planting device section can be driven up and down via a lift rod and a lower link that are installed in a non-parallel posture across the main body and the planting device section. Regarding a rice transplanter.

Planting in this type of rice transplanter is controlled by the lift rod and lower link, which are in a non-parallel position with respect to the ground. When moving up and down by driving, the relative angle between the lift rod and lower link changes, which inevitably causes the attitude of the planting device to change relative to the ground. When adjusting the depth, not only will the planting posture be disturbed, but the feeding action of the placed seedlings will become uncertain, causing damage to the seedlings and missing plants. When replenishing seedlings with the device raised above the ground, there were inconveniences such as having to replenish seedlings in an awkward position.

In view of the above-mentioned circumstances, the present invention has been developed so that the posture of the planting device relative to the ground can be controlled to a posture suitable for seedling planting or seedling replenishment, regardless of the driving up and down movement of the device. In the above-mentioned device, the planting is carried out by utilizing the relative angle change between the lift rod and the lower link as the drive moves up and down. It is characterized by being equipped with a mechanism to control its posture.

That is, the present inventor focused on the fact that the relative angle between the lift rod and the lower link changes as the device moves up and down, and uses this angle change to control the planting. By being configured to control the ground attitude, the planting device is driven up and down via a structurally simple two-point link mechanism between the lift rod and the lower link in non-parallel positions. By simply adding a simple configuration to the two-point link mechanism, it is possible to control the posture of the planting device relative to the ground to a posture suitable for seedling planting or seedling replenishment, based on changes in the depth of the tiller. Planting operations such as adjusting the depth and replenishing seedlings were performed reliably, efficiently, and easily.

Embodiments of the present invention will be described below based on the drawings.

In the figure, reference numeral 1 indicates a hydraulic drive mechanism 5 for a pair of left and right lift arms 4, 4 that can be vertically swung around the axis in the left and right directions with respect to the moving direction of the aircraft, and is mounted on the upper part of a tension case 3 having a driving rear wheel 2. The main body is provided with a seat 6 and a connecting hitch 7 connected to the rear wall of the mission case 3, and 8 is a seedling stand 9 tilted forward from the rear lower part to the front upper part. For planting, there is a transmission case 11 which contains claws 10 for planting, and a transmission case 11 for planting these, and a float 12 for leveling the surface for planting seedlings. The part 8 is planted at the front end of the mission case 11 at the rear ends of a pair of left and right lift rods 13, 13 and lower links 14, 14 which are pivoted to the lift arms 4, 4 and connecting hitch 7 of the main body 1, respectively. Department,
They are pivotally connected in a state of being located on the same horizontal axis and in a non-parallel posture, so that the drive movement of the lift arms 4, 4 causes the lower links 14, 14 to pivot on the main body 1 side. The planting device section 8 is configured to be driven up and down as a fulcrum.

In such a riding rice transplanter, the lift rod 13
, 13 and the lower links 14, 14, a waist bending link 15°15 which bends toward the front of the fuselage is interposed, and the bending pivot portions 15a, 15a of this waist bending link 15, 15.
The rear end of the rod 16 which is pivotally connected to the planting box 11 is pivotally connected to the guide frame 17 for lateral movement of the seedling stand 9 extending upward from the front end of the planting case 11. The above-mentioned lift rod 131 accompanies the driving up and down movement of the device.
3 and the lower links 14, 14 constitutes an attitude control mechanism 1 that maintains the attitude of the planting device 10 relative to the ground at a constant g regardless of whether it is raised or lowered.

[Brief explanation of drawings]

The drawings illustrate an embodiment of the planting device part drive lifting device in the rice transplanter according to the present invention, and FIGS. 1 and 2 are side views showing the lowered state and the raised state, respectively. 1...Main body, 8...Planting equipment part, 1
3...Lift rod, 14...Lower lift, 1 B--Attitude control mechanism.

Claims (1)

[Claims] 1. The planting device section 8 can be driven up and down via a lift rod 13 and a lower link 14, which are installed in a non-parallel posture across the main body 1 and the planting device section 8. In this rice transplanter, the planting is performed using a Hata mechanism (1) that controls the attitude of the device section 80 and the ground by utilizing the relative angle change between the lift rod 13 and the lower link 14 as the drive goes up and down. A rice transplanter is equipped with a device driving lifting device for planting. 2. The posture control mechanism 18 maintains the posture of the planting device 80 relative to the ground at a constant or constant g regardless of elevation. The rice transplanter according to claim 1 is configured to perform planting by a lifting device that drives the device section.