JP2565379Y2 - Apron adjustment device in rice transplanter - Google Patents

Description

[Detailed description of the invention]

[0001]

The present invention relates to an apron arranged at the end of a mat seedling in order to control the amount of one scraping by a planter from the end of the mat seedling on a seedling table of a rice transplanter. The present invention relates to a device for adjusting a moving amount.

[0002]

2. Description of the Related Art Various types of devices for adjusting the position of a mat seedling placed on a seedling table of a rice transplanter with an apron and adjusting the position of the apron in relation to the locus of movement of a planter claw. Is proposed in Japanese Patent Publication No. 63-39207 as an example related to the apparatus.

[0003] This device is a rice transplanter having a seedling table supported slidably in the body in a lateral direction and an apron arranged at the lower end of the seedling table. Are provided, and these arms are connected by connecting rods to form a parallel link. Each arm is provided with an apron attachment member, and the apron can be moved up and down in parallel by turning the arm. Things.

[0004]

However, in this device, the rear part of the drive case is extended laterally, two apron support plates are attached to this portion, and L-shaped arms are respectively attached to the flat portions of the apron support plate. The apron support plate is rotatably supported by a pin, the arm and the apron are connected to a bolt, and the two arms are further connected to each other by a connecting rod to rotate the arm forming the parallel link. Accordingly, the apron is moved up and down via bolts. Therefore, this device has a considerably large number of parts and the structure of the device is complicated, so that the manufacturing cost increases. In addition to the need for precision in assembling these parts, it is necessary to perform sufficient maintenance and inspection to prevent loosening of the connection part of many parts and to maintain the apron support position with high precision with respect to the planter. there were.

Accordingly, an object of the present invention is to provide an apparatus capable of reducing the number of parts and ensuring the accuracy of the apron support position.

[0006]

An apron adjusting device for a rice transplanter according to the present invention for achieving the above object is provided with a seedling mounting table which is slidably supported by the body in a lateral direction and a seedling mounting table for the seedling mounting table. In a rice transplanter having an apron disposed at a lower end and supporting a lower end portion of a mat seedling, an apron attachment plate is provided at a rear end of a drive case connected to an airframe and transmitting power to a planting portion, The apron mounting plate includes a fixing plate portion for fixing to the drive case, a projecting portion projecting from the fixing plate portion in the width direction of the seedling mounting table, and an apron supporting portion formed on the projecting portion. This is a device in which a cut-out piece formed by cutting a part of the overhanging portion is bent toward the anti-apron side to serve as a fulcrum of a lever for moving the apron back and forth.

Further, in order to connect the apron and the up-down device, a bracket fixed to the base of the apron is inserted into a cutout hole formed with a cutout piece of the apron mounting plate, and a tip end of the bracket is engaged with the crankshaft. doing.

[0008]

[Operation] The apron mounting plate is cut out and bent toward the apron side to form a bracket that serves as a fulcrum for the crankshaft that raises and lowers the apron, so that the relative position between this fulcrum and the apron can be accurately determined. The position of the apron whose front and rear positions are adjusted by rotating the crankshaft with the lever can be accurately adjusted, and the position of the apron relative to the planter claw can be maintained for a long period of time.

[0009]

[Embodiment] Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a side view of the rice transplanter, and FIG. 2 is a plan view thereof. The rice transplanter 1 has a body 3 on which an engine 2 is mounted, and a paddy wheel 5 and a float 6 are suspended on the body 3 by a link mechanism so as to be swingable. Further, a drive case 7 is disposed on the body 3 toward the rear, and a planter 8 is rotatably installed on the drive case 7 and a handle 10 is extended toward the rear upper side. A seedling mounting table 12 is supported along the handle 10 and slidably in the lateral direction by a slide piece 11. An apron mounting plate 13 is fixed to the rear end of the drive case 7, and an apron 14 is supported on the apron mounting plate 13 so as to be movable back and forth.

FIG. 3 shows a drive case 7 and a handle 10,
The apron mounting plate 13 fixed to the rear end of the drive case 7 is shown.
Is a fixing plate 13a fixed to the rear end of the drive case 7.
And an overhanging plate portion 13b continuous with the apron support portion 13c formed at both ends of the overhanging plate portion 13b with an L-shaped cross section. A support substrate 15 for fixing the drive unit of the planter 8 is provided at a rear portion of the drive case 7, and a fixing plate 16 for fixing to the body 3 is provided at a front portion.

As shown in FIGS. 3 to 5, the apron mounting plate 13 is formed by bending a metal plate cut into a predetermined shape, and is an extension plate which is an extension of the fixed plate portion 13a. Two cutout holes 13d are cut out in a U-shape in the portion 13b, and a cutout piece 13e formed by this cutout is extruded backward and bent so as to be orthogonal to the overhang plate portion 13b to form a bracket.

On the other hand, a lever portion for adjusting the front and rear positions of the apron 14 is a crank portion which is inserted into a hole 13f provided in two cutout pieces 13e formed by cutting out the overhanging plate portion 13b and raising it. A crankshaft 17 forming 17a and this crankshaft
The lever 17 is fixed to the center of the lever 17 by welding. As shown in FIGS. 4 and 5, an L-shaped bracket 19 is fixed to the base 14a of the apron 14, and a forked engaging portion 19a is formed at the tip of the rising portion of the bracket 19. The rising portion is inserted into the cutout hole 13d to engage with the root of the crank portion 17a of the crankshaft 17. Accordingly, the rising portion of the bracket 19 is parallel to the cutout 13e, and the crank portion 17a is also arranged along the cutout 13e.

Therefore, this lever 18 is designated by a symbol in FIG.
When the crankshaft 17 is swung up and down between 18 and 18a, the straight portion of the crankshaft 17 swings because the crank portion 17a is supported by the cut-out piece 13e. The apron 14 moves up and down between the symbols 14 and 14 m at the lower end of the seedling mounting table 12 via the L-shaped bracket 19 engaged with the Will be adjusted.

An opening is provided in the support surface of the seedling mounting table 12, and a part of the seedling feed belt 20 protrudes from this opening to engage with and support the lower surface of the seedling to adjust to the planting motion. It is configured to transfer mat seedlings intermittently.

[0015]

According to the present invention, an apron adjusting device for a rice transplanter according to the present invention comprises a seedling support slidably supported by a machine body in a lateral direction and a lower end of a mat seedling arranged at a lower end of the seedling mount. In a rice transplanter having an apron to be supported, an apron attachment plate is provided at a rear end of a drive case connected to the body and transmitting power to the planting portion, and the apron attachment plate is fixed to the drive case. A fixing plate portion, a protruding portion that protrudes from the fixing plate portion in the width direction of the seedling mounting table, and an apron support portion formed on the protruding portion, and a part of the protruding portion. The cut piece formed by cutting is bent toward the apron side to serve as a fulcrum of a lever for moving the apron back and forth.

Accordingly, the apron 14 supported by the apron mounting plate 13 moves up and down via the crankshaft 17 supported by the cutout 13e formed integrally with the rear side of the apron mounting plate 13 by being bent. Since the position is adjusted, the vertical position of the apron 14 can be adjusted to accurately adjust the relative position between the planter claw and the apron 14.

Further, in the present invention, since the lever device for moving the apron 14 up and down is supported by a part of the apron mounting plate 13, the number of parts is small, and furthermore, the support means does not have a disorder of adjustment due to slackness, and It is also advantageous in terms of maintenance. Furthermore, cut out the bracket 19 provided on the apron 14
Since the apron 14 is supported on the crankshaft 17 through 13d, the structure for supporting the apron 14 can be significantly simplified, and a device with less trouble can be provided.

[Brief description of the drawings]

FIG. 1 is a side view of a rice transplanter according to an embodiment of the present invention.

FIG. 2 is a plan view of the rice transplanter according to the first embodiment.

FIG. 3 is a perspective view showing a structure of a drive case and a handle portion.

FIG. 4 is an exploded perspective view of a main part of the device according to the present invention.

FIG. 5 is a side view of an apron raising and lowering device.

[Explanation of symbols]

1 Rice transplanter 3 Airframe 7 Drive case 8
Planter 10 Handle 11 Slide piece 12 Seedling stand 13 Apron mounting plate 13a Fixed plate 13b
Overhang plate 13c Apron support 13d Cutout hole 13e Cutout 14 Apron 17 Crankshaft 17a Crank
18 Lever 19 Bracket 19a Forked part.

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Sho 61-122641 (JP, U) Japanese Utility Model Sho 59-4219 (JP, U)

Claims (2)

(57) [Scope of request for utility model registration] 1. A rice transplanter having a seedling table supported slidably in the machine body in a lateral direction and an apron arranged at a lower end of the seedling machine table and supporting a lower end portion of a mat seedling. An apron mounting plate is provided at the rear end of the drive case that transmits power to the planting portion, and the apron mounting plate includes a fixing plate portion for fixing to the drive case and a fixing plate portion. A protruding portion that protrudes in the width direction of the seedling mounting table, and an apron support portion formed on the protruding portion, and a cut piece formed by cutting a part of the protruding portion is formed on the anti-apron side. Apron adjustment device for rice transplanters that is used as a fulcrum for a lever that bends and moves the apron back and forth. 2. A bracket fixed to an apron is inserted into a hole of a portion of the apron mounting plate where a cutout is formed, and a crankshaft fixed to a lever for raising and lowering the apron is engaged with a forked portion at the tip of the bracket. An apron adjustment device for a rice transplanter according to claim 1, wherein