JPS6030902Y2 - Traveling device of riding rice transplanter - Google Patents

Description

[Detailed Description of the Invention] 1. Industrial Application Field The present invention consists of a planting section having a seedling stand and planting claws, and a riding section consisting of an agricultural tractor or a traveling vehicle exclusively for rice planting. This invention relates to a riding rice transplanter equipped with three or more front wheels or rear wheels.

1. Prior Art Conventionally, as shown in, for example, Japanese Utility Model Application Publication No. 53-124515, there has been a technology in which inner and outer wheels are disposed coaxially and removably.

Problems to be Solved by the First Invention In the prior art, the inner and outer wheels are connected and supported only by the axle, so the outer wheel may ride on a hard convex part and the inner wheel may float, causing problems with the outer wheel. When a large load is applied, the axle supporting the outer wheel is easily deformed, and there are safety problems such as the position of the outer wheel easily becoming eccentric with respect to the inner wheel.

1. A means to solve a problem.

However, in the present invention, the inner and outer wheels are connected and supported by a connecting shaft, and a supporting rod is connected to the connecting shaft via a bearing, and the supporting rod is detachably attached to the rice transplanter's hitch via the supporting rod. It was supported.

1. Therefore, the support strength of the outer wheels can be improved more easily than before, the mounting interval of the inner and outer wheels can be arbitrarily set longer than before, and deformation of the coupling shaft etc. can be prevented. A sufficient distance between the inner and outer wheels can be obtained, and the rice planting using the wheels causes less disturbance of the rice field than before, allowing for stable movement. The reinforcing structure can be constructed simply, and the outer wheels can be easily disassembled and handled easily.

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

Fig. 1 is a schematic side view of the riding rice transplanter, and Fig. 2 is a plan view of the same. In the figure, 1 is a riding section consisting of a running vehicle dedicated to rice transplanting, 2 is a front body, 3 is a rear body, and 4. Reference numeral 5 denotes a connection frame that connects the front and rear car bodies 2 and 3 so as to be able to bend only in the horizontal direction via a rotational fulcrum shaft 6; The front and rear wheels for paddy fields are attached, 12 is a column whose base end is fixed to the front body 2 and supports the preliminary seedling stand 13, and 14 is a driver's seat that is attached to the upper part of the rear of the front body 2 via the column 12. , 15 is a steering bundle provided above the front part of the front vehicle body 2, and 16 is an engine mounted on the rear vehicle body 3. By operating the handle 15, the front and rear vehicle bodies 2 and 3 are horizontally moved around the pivot shaft 6. Bending and planting are configured so that they travel along a trajectory.

Further, numeral 17 in the figure is a planting part for eight-row planting, which is installed in the front of the front vehicle body 2 so that it can be raised and lowered via a three-point linkage mechanism 18.
Reference numeral 19 denotes a seedling stand with a front and rear height that can be moved back and forth from side to side, 20 a planting claw that takes out one seedling from the seedling stand 9 and plants it, and 21 a seedling stand 19 and a planting claw. 20 is a transmission case to which the transmission case 21 is attached; 22 is a float that supports the transmission case 21; 23 is a front bumper connected to the transmission case 21 and the float 22; 24 is a fixed frame that supports each transmission case 21; The platform 19 and the planting claws 20 are driven appropriately to continuously plant seedlings.

As shown in Figure 3, front and rear transmissions 2 are installed on the front and rear car bodies 2 and 3.
5.26 is incorporated, final cases 27 and 28 are protruded from both sides of the front and rear transmissions 25 and 26, swing cases 1G and 11 are swingably attached to both sides of each final case 27 and 28, and swing cases 1G and 11 are attached to each case 10 and 11. The front wheel 7 and the inner diameter wheel 8 are respectively supported, and the outer rear axle 9 is arranged coaxially with the inner diameter wheel 8, and in the case of planting 8 rows as shown in the figure, the 8 rows of already planted seedlings 29...・Each wheel 7°8.9 is arranged so as to form a rut 30 between all the rows except the center.

As shown in FIG. 4, a hexagonal columnar axle 33 is mounted on a swing case 11 containing a sprocket, a chain, etc., and a flange 8a of an inner diameter wheel 8, which is an inner wheel, is fitted onto the axle 33 and a flange bolt is attached. A flange 8a is fixed to the axle 33 via 35, a drum 8b is fixed to the flange 8a, and a rim 8d having lugs 8C is supported by the drum 8b via spokes 8e.

Further, a coupling flange 37 serving as a coupling shaft is integrally fixed to one end of the hexagonal columnar auxiliary axle 36, the coupling flange 37 is fitted onto the axle 33, and the flange 37 is fixed to the axle 33 via a flange bolt 39. An auxiliary axle 36 is removably extended from the outer end of the axle 33.

The flange 9a of the outer rear axle 9, which is an outer wheel, is fitted onto the auxiliary axle 36, and the flange 9a is fixed to the auxiliary axle 36 via the flange bolt 41. At the same time, the drum 9b is fixed to the flange 9a, and the lug 9C is fixed. The rim 9d is supported by the drum 9b via spokes 9e, and the outer rear axle 9 is removably supported on the same axis as the inner diameter wheel 8. Also, the diameter d of the outer rear axle 9 is made slightly smaller, so that the inner diameter wheel 8 touches the ground on a relatively hard flat road surface, and the outer rear axle 9 is slightly lifted and separated from the road surface, making it easier to attach and detach the outer rear axle 9. It is configured so that it can be carried out.

Furthermore, as shown in FIGS. 5 and 6, bearings 43 and 44 are fixed to the two-pronged ends of the two-pronged support rod 42, and the bearings 43 and
44 rotatably supports the coupling flange 37, and coupling pins 45 and 45 are integrally provided at both ends of the connecting bar 46 and are removably fitted to the two pronged base ends of the supporting bar 42. 42 and 42 are connected in a disassembly manner by a connecting rod 46.

A hitch 47 is provided at the rear end of the rear vehicle body 3, and a U-shaped support frame 50 is attached to the hitch 47 via a hitch pin 48 and a fixing bolt 49.

The guide groove 51 into which the intermediate rod 46 is loosely inserted is inserted into the support frame 5.
0 and swing case 11. The support rods 42 and the connecting rods 46 are integrally displaced in conjunction with the swinging of the points t and 1, and each support rod 4
2 and a connecting rod 46 to support the outer rear axle 9 via the coupling flange 37.
When removing the joint flange 37, support rod 42, connecting rod 46, and support frame 50, each is disassembled and formed to be stored compactly together with the outer rear axle 9, and the auxiliary axle 36 and the joint flange 37 are removed. Support rod 42 and connecting rod 46
The outside rear axle 9 can be easily incorporated into a conventional structure having a pair of left and right wheels.

Effects of the invention As is clear from the above embodiments, the present invention provides a traveling device in which inner and outer wheels 8 and 9 are coaxially provided in a detachable manner.
The inner and outer wheels 8 and 9 are connected and supported by a coupling shaft 37, and a support rod 4 is connected to the coupling shaft 37 via bearings 43 and 44.
2 are connected, and the support rod 42 is detachably supported by the hitch 47 of the rice transplanting machine via the support frame 50, and the support strength of the outer wheels 9 can be improved more easily than before. Compared to the past, the mounting interval between the inner and outer wheels 8 and 9 can be arbitrarily set longer, and deformation of the coupling shaft 37 etc. can be prevented and a sufficient distance between the inner and outer wheels 8 and 9 can be obtained. With 8 and 9, planting can be carried out more stably with less disturbance of the rice field than before, and the rice transplanter's hit 4
By supporting the support rod 42 on the support rod 7, the reinforcing structure of the outer wheel 9 can be constructed simply, and the outer wheel 9 can be easily disassembled and handled, which has practical effects. be.

[Brief Description of the Drawings] Fig. 1 is a schematic side view of a riding rice transplanter showing an embodiment of the present invention, Fig. 2 is a plan view of the same, Fig. 3 is a plan explanatory view of the main parts, and Fig. 4 is a schematic side view of a riding rice transplanter showing an embodiment of the present invention. An enlarged plan view of the main part, and FIGS. 5 and 6 are partial sectional views thereof. 8... Inner diameter wheel (inner wheel), 9...
・Outer rear axle (outer wheel), 37... Connection flange (connection shaft), 42... Support rod, 47...
・・Hitsuchi, 50・・・・・ Support frame.

Claims (1)

[Scope of utility model registration request] In a traveling device in which inner and outer wheels 8 and 9 are removably provided on the same axis, the inner and outer wheels 8 and 9 are connected and supported by a coupling shaft 37, and are also supported by the coupling shaft 37 via bearings 43 and 44. A traveling device for a riding rice transplanter, characterized in that a rod 42 is connected and the support rod 42 is detachably supported by a hitch 47 of a rice transplanter body via a support frame 50.