JPH10136733A - Vertical adjustment structure for apron in transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the vertical adjustment structure of an apron in a simple structure capable of preventing a seedling raking adjustment lever from being horizontally moved unexpectedly and accurately vertically adjusting the apron in a transplanter for supporting a seedling mounting base at the upper part of the main frame of a seedling planting part and vertically adjusting the apron of the seedling mounting base by the seedling raking adjustment lever. SOLUTION: An apron attaching seat 38 is disposed and the apron is supported on the upper surface of a planter case 7 fixed to the main frame 6, a turning shaft 40 linked with the seedling raking adjustment lever 37 is provided on the lower surface side of the apron attaching seat 38 and the apron 12 is vertically adjusted by a cam body 43 projectingly provided from the turning shaft 40. Also, the movement in a horizontal direction of the turning shaft 40 is controlled by the abutting of the cam body 43 and the apron attaching seat 38 and the horizontal movement of the seedling raking adjustment lever 37 is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for supporting a seedling mounting table above a main frame of a seedling mounting section, and moving an apron from which seedlings are sent out from the seedling mounting table by operating a seedling scraping control lever. The present invention relates to an apron up and down adjustment structure in a transplanter in which the amount of seedling scraping is adjusted to increase or decrease.

[0002]

2. Description of the Related Art In general, in a transplanting machine such as a riding rice transplanter, an apron for receiving a seedling is arranged at a lower end of a seedling mounting table provided in a seedling mounting section, and is sent out from the seedling mounting table onto the apron. It is known that the planter that operates for planting scrapes the planted seedlings to plant them in the field, and moves the apron up and down by operating the seedling scraping control lever to adjust the amount of seedling scraping up or down. Have been.

[0003] In such a transplanter, a horizontal axis is provided in conjunction with the turning operation of the seedling scraping adjusting lever, and an engaging body provided on this horizontal axis is engaged with the apron, and the turning operation of the adjusting lever is performed. The apron is moving up and down. However, when the apron is moved up and down, if the seedling scraping control lever moves in the horizontal direction, the apron cannot be moved up and down accurately, which may adversely affect seedling planting accuracy. is there. Therefore, conventionally, in order to prevent the seedling scraping control lever from moving in the lateral direction, a regulating member for preventing the lateral movement of the horizontal axis linked to the seedling scraping control lever is provided on the frame of the planting portion. The up-and-down adjustment structure of the apron was complicated.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described circumstances. Even if the apron is moved up and down by a vertical rotation operation of a seedling scraping adjusting lever, the present invention relates to An object of the present invention is to provide an apron up-and-down adjustment structure in a transplanter having a simple structure capable of preventing an inadvertent lateral movement of a scraping adjustment lever and capable of accurately adjusting an apron up and down.

[0005]

Means for Solving the Problems In order to solve the above-mentioned problems, a technical means taken by the present invention is to support a seedling mounting table above a main frame of a seedling planting section and to mount an apron on the seedling mounting table. In a transplanter that is adjusted up and down by a seedling scraping adjustment lever, an apron attachment seat is provided on an upper surface of a planter case fixed to the main frame to support the apron, and a seedling scraping adjustment lever is provided on a lower surface side of the apron attachment seat. And an apron vertically adjusted by a cam body protruding from the rotation shaft, and the lateral movement of the rotation shaft by contact of the cam body with the apron mounting seat. It is characterized by restricting and preventing lateral movement of the seedling scraping control lever, and supporting the seedling mounting table above the main frame of the seedling planting section, and moving the apron of the seedling mounting table to the seedling scraping adjusting lever. In the transplanter that can be adjusted up and down with On the upper surface of the planter case fixed to the frame, an apron mounting seat is provided to support the apron, and a lower shaft side of the apron mounting seat is provided with a rotating shaft interlocking with a seedling scraping adjustment lever, and from the rotating shaft, The apron is adjusted up and down by the protruding cam body, and the cam body and the end of the apron mounting seat or the inner edge of the guide hole formed in the apron mounting seat are brought into contact with each other in the lateral direction of the rotating shaft. The movement is regulated to prevent the lateral movement of the seedling scraping adjusting lever.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in detail with reference to an embodiment shown in the drawings. First, in FIGS. 1 to 3, reference numeral 1 denotes a traveling machine of a riding rice transplanter exemplified as a transplanter, and a seedling planting section 2 is attached to a rear portion of the traveling machine 1 via a link mechanism 3 so as to be movable up and down. Yes,
A planter 4 that is planted with the running of the machine is configured to scrape seedlings from a seedling mounting table 5 that is laterally fed left and right for each unit planting and plant the seedlings in a field.

Reference numeral 6 denotes a main frame of the seedling planting section 2. The main frame 6 is formed of a left-right square pipe, and a plurality of planters extending rearward on the lower surface of the main frame 6. The case 7 is fixed side by side via a bracket 8, and the planter 4 is mounted on a rotating shaft 9 provided at the rear end of the planter case 7. A planter drive shaft 10 is provided at the front of the planter case 7, and power from the planter drive shaft 10 is transmitted to the rotating shaft 9 via a transmission mechanism built in the planter case 7 to rotate the rotating shaft. 9 causes the planter 4 to be planted.

A seedling vertical feeding device 11 is provided on the bottom surface of the seedling mounting table 5.
At the lower end of the seedling mounting table 5, an apron 12 for receiving the vertically fed seedlings is provided so as to be vertically adjustable. The seedling mounting table 5 is supported in a front-to-back and low-level manner by a support frame 13 erected on the front surface of the main frame 6 at the upper end, and the lower end of the seedling mounting table 5 slides on a slide piece 14 to reciprocate left and right. It is free. 15 is a support frame 13
Mounting bracket.

Reference numeral 16 denotes a lateral feed mechanism for the seedling mounting table 5. A guide piece 17 connected to the seedling mounting table 5 is screwed on a screw shaft 18, and moves left and right by rotation of the screw shaft 18. The guide piece 17 reciprocates the seedling table 5 reciprocally. Reference numeral 19 denotes a lateral feed speed change case provided at one end of the screw shaft 18, and a speed change mechanism built in the horizontal feed speed change case 19 changes the rotation speed of the screw shaft 18 to move the seedling mounting table 5 to a desired lateral feed speed. And

Reference numeral 20 denotes a vertical feed cam provided at the other end of the screw shaft 18, and the vertical feed cam 20 is attached to a support bracket 21 of the screw shaft 18 by a pivot pin 22 as shown in FIGS. The pin 24a of the rotation link 24 attached to the screw shaft 18 is fitted into an elongated hole 23 formed in the vertical feed cam 20 so that the screw shaft 18 can rotate. The vertical feed cam 20 moves up and down in conjunction therewith.

Reference numeral 25 denotes a vertical feed lever which moves up and down when the vertical feed cam 20 abuts. The vertical feed lever 25 is connected to a feed roller 27 of a vertical feed belt 26 via an interlocking link 28. The feed roller 27 rotates in conjunction with the vertical movement of the vertical feed cam 20, and the vertical feed belt 26 intermittently feeds the mat seedling placed on the seedling mounting table 5 vertically.

Reference numeral 29 denotes a PTO shaft, and reference numeral 30 denotes a drive input case. Power from the drive input case 30 is transmitted to the planter drive shaft 10 and the input shaft of the transverse feed case 19. 31 is a horizontal control mechanism of the seedling planting section 2,
32 is a rolling spring stretched from a spring stay 33 to both sides of the seedling mounting table 5;
Rolling axis.

A reinforcing member 35 made of an elastic thin plate is fixed to the support frame 13 supporting the seedling mounting table 5 with a fixing bolt 36 between the upper surface of the main frame 6 and the main frame 6 so as to be inclined. A triangular reinforcing portion A is formed.

The apron 12 can be adjusted up and down by rotating the seedling scraping adjusting lever 37. That is, as shown in FIG. 4, an apron mounting seat 38 made of a U-shaped plate is fixed to the mounting portion 39 of the planter case 7 on the upper surface of the planter case 7, and the apron 12 is mounted on the upper surface of the apron mounting seat 38. It is supported slidably up and down.

On the lower surface side of the apron mounting seat 38, a rotating shaft 40 having a hexagonal cross section, which is interlocked with the operation of the seedling scraping adjusting lever 37, is provided. Seedling scraping control lever 3
Numeral 7 is supported on the rear surface of the main frame 6 via a support plate 41 so as to be freely rotatable up and down. The lower end of the scraping adjustment lever 37 is interlockingly connected to the rotation shaft 40 via an interlocking link 42. I have.

Numeral 43 denotes a plurality of cams protrudingly fixed at a predetermined interval to the rotating shaft 40. Of these cams 43, the cams 43 provided at both ends of the rotating shaft 40 are aprons. A cam body 43 which is in contact with the end of the mounting seat 38 and is provided in the middle of the rotating shaft 40 is inserted through a guide hole 44 formed in the apron mounting seat 38. And apron mounting seat 38
Of the cam body 43 projecting upward from the recess 1 of the apron 12.
By engaging with 2a, the cam body 43 provided on the rotating shaft 40 adjusts the position of the apron 12 up and down in conjunction with the turning operation of the scraping adjusting lever 37.

At this time, cam bodies 43 provided at both ends of the rotating shaft 40 abut against the end of the apron mounting seat 38, and the cam body 43 inserted through the guide hole 44 contacts the inner edge of the guide hole 44. Therefore, the lateral movement of the rotation shaft 40 is restricted, and the lateral movement of the scraping adjustment lever 37 connected to the rotation shaft 40 is prevented. 45 is a fixing bolt of the cam body 43;
Is a scraping adjustment lever 3 provided on the upper surface of the main frame 6
Numeral 7 is a lever guide and numeral 47 is a seedling scraping port provided on the apron 12.

Reference numeral 48 denotes a center float provided below the planter case 7, and 49 denotes a side float. A fulcrum shaft 50 of the floats 48, 49 is connected to a swing link 51 provided on the lower surface of the planter case 7. It is suspended so that it can move up and down freely. Reference numeral 52 denotes a planting depth adjusting lever. The tip of the planting depth adjusting lever 52 is connected to the swing link 51 in an interlocking manner.
The floats 48 and 49 are moved up and down by the operation 2 to adjust the planting depth of the seedlings. Reference numeral 53 denotes a lever guide for the planting depth adjusting lever 52.

Since the present invention is configured as described above, when the planting operation is performed, the traveling machine 1 is moved to move the apron 12 from the seedling mounting table 5 which is reciprocated to the left and right.
The planter 4 that operates to plant and seed the seedlings sent out above scrapes it and plant it in the field.

When the seedling scraping adjusting lever 37 is turned up and down in order to increase or decrease the amount of seedling scraping, the turning shaft 40 turns in conjunction with this operation. An upwardly projecting cam body 43 provided on the rotating shaft 40 moves the apron 12 up and down to increase or decrease the amount of seedling scraping by the planter 4. At this time, the cam bodies 43 provided at both ends of the rotating shaft 40 abut against the end of the apron mounting seat 38, and the cam bodies 43 provided in the middle of the rotating shaft 40 are formed on the apron mounting seat 38. The guide hole 44 contacts the inner edge of the guide hole 44, so that the movement of the rotating shaft 40 in the lateral direction is restricted. For this reason, the scraping adjustment lever 37 connected to the rotating shaft 40 does not inadvertently move laterally, and the apron 12 is accurately moved up and down to adjust the amount of seedling scraping.

As described above, the lateral movement of the scraping adjustment lever 37 can be prevented only by the apron mounting seat 38 that supports the apron 12 and the cam body 43 that moves the apron 12 up and down. The structure can be simplified.

[0022]

In summary, the present invention relates to a transplanting machine in which a seedling support is supported above a main frame of a seedling planting section and the apron of the seedling support is adjusted up and down by a seedling scraping adjusting lever. On the upper surface of the planter case fixed to the frame, an apron mounting seat is provided to support the apron, and a lower shaft side of the apron mounting seat is provided with a rotating shaft interlocking with a seedling scraping adjustment lever, and from the rotating shaft, The apron is vertically adjusted by the protruding cam body, and the lateral movement of the rotating shaft is restricted by the contact between the cam body and the apron mounting seat, thereby preventing the lateral movement of the seedling scraping adjustment lever. Also, in a transplanter that supports a seedling table above the main frame of the seedling planting section, and adjusts the apron of the seedling table up and down with a seedling scraping adjustment lever,
On the upper surface of the planter case fixed to the main frame, an apron mounting seat is provided to support the apron, and a lower shaft side of the apron mounting seat is provided with a rotating shaft interlocking with a seedling scraping adjustment lever, and The apron is adjusted up and down by a cam body protruding from the shaft, and the cam body is brought into contact with the end of the apron mounting seat or the inner edge of the guide hole formed in the apron mounting seat in the lateral direction of the rotating shaft. In order to control the movement of the seedling scraping control lever to prevent the lateral movement of the seedling scraping control lever, in adjusting the seedling scraping amount by operating the seedling scraping control lever,
Since the seedling scraping control lever does not inadvertently move laterally, the apron can be moved up and down accurately to increase or decrease the seedling scraping amount. Moreover, since only the apron mounting seat for supporting the apron and the cam body for vertically adjusting the apron can be used to prevent the lateral movement of the seedling scraping control lever, the structure for vertically adjusting the apron can be simplified.

[Brief description of the drawings]

FIG. 1 is an overall side view of a riding rice transplanter.

FIG. 2 is a side view of a seedling planting section.

FIG. 3 is a plan view of the same.

FIG. 4 is a perspective view of a main part.

FIG. 5 is an enlarged side view of the seedling vertical feeding device.

FIG. 6 is an operation explanatory view of the above operation.

[Explanation of symbols]

 2 Seedling Plant 5 Seedling Stand 6 Main Frame 7 Planter Case 12 Apron 37 Seedling Scavenging Adjustment Lever 38 Apron Mounting Seat 40 Rotating Shaft 43 Cam Body 44 Guide Hole

Claims (2)

[Claims] 1. A transplanter for supporting a seedling mounting table above a main frame of a seedling planting section and adjusting an apron of the seedling mounting table up and down by a seedling scraping adjusting lever, wherein a planter case fixed to the main frame is provided. On the upper surface, an apron mounting seat is provided to support the apron, and on the lower surface side of the apron mounting seat, a rotating shaft interlocking with the seedling scraping adjusting lever is provided, and the apron is provided by a cam body protruding from the rotating shaft. And a lateral movement of the seedling scraping adjustment lever is prevented by restricting the rotation of the rotating shaft in the lateral direction by contacting the cam body with the apron mounting seat. Up and down adjustment structure of the apron. 2. A transplanter in which a seedling mounting table is supported above a main frame of a seedling planting section, and an apron of the seedling mounting table is vertically adjusted by a seedling scraping adjusting lever. On the upper surface, an apron mounting seat is provided to support the apron, and on the lower surface side of the apron mounting seat, a rotating shaft interlocking with the seedling scraping adjusting lever is provided, and the apron is provided by a cam body protruding from the rotating shaft. And the lateral movement of the rotating shaft is regulated by contact between the cam body and the end of the apron mounting seat or the inner edge of the guide hole formed in the apron mounting seat. An up-and-down adjusting structure for an apron in a transplanter, wherein lateral movement of a scraping adjusting lever is prevented.