JPH10136732A - Attachment structure for lever guide in transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the attachment structure of a lever guide capable of easily finely adjusting a seedling raking amount and a planting depth or the operation load of a seedling raking amount adjustment lever and a planting depth adjustment lever even in the one for operating both adjustment levers along the lever guide in a transplanter provided with the seedling raking amount adjustment lever for vertically moving an apron and the planting depth adjustment lever for vertically moving a float. SOLUTION: By freely position-adjustably attaching the lever guides 42 and 50 of the seedling raking amount adjustment lever 37 and the planting depth adjustment lever 48 to the main frame 6 of a seedling planting part, the seedling raking amount and the planting depth or the lever operation loads of both adjustment levers 37 and 48 can easily and finely be adjusted just by adjusting the attaching positions of the lever guides 42 and 50.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lever guide mounting structure in a transplanter provided with a seedling scraping amount adjusting lever for moving an apron up and down and a planting depth adjusting lever for moving a float up and down. It is.

[0002]

2. Description of the Related Art Generally, a transplanting machine such as a riding rice transplanter is provided with a seedling scraping amount adjusting lever for vertically moving an apron and a planting depth adjusting lever for vertically moving a float. By operating along the guide groove of the lever guide, the seedling scraping amount and the planting depth are adjusted, and the seedling planting operation is performed by engaging a lever notch provided in the guide groove at a desired adjustment position. Things are known.

However, in a conventional transplanting machine, the lever guide of such an adjusting lever is fixed to a frame or the like of a seedling plant, so that the adjusting lever adjusts the amount of seedling scraping and planting depth, or the lever is adjusted. The operating load of the adjusting lever to be disengaged from the notch could not be finely adjusted according to the working conditions.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and comprises a seedling scraping amount adjusting lever and a planting depth adjusting lever provided on a transplanting machine, and a lever guide. A lever guide mounting structure that can easily and finely adjust the amount of seedling scraping and planting depth, or the operating load of the adjustment lever, even if the operation is performed according to the operating conditions. It is assumed that.

[0005]

In order to solve the above-mentioned problems, the technical measures taken by the present invention include a seedling scraping amount control lever for moving the apron up and down, and a planting depth control for moving the float up and down. In the transplanter provided with a lever, the lever guides of both levers are mounted on the main frame of the seedling mounting portion so as to be freely adjustable, so that only the mounting position of the lever guide is adjusted, and the seedling scraping amount and It is characterized in that the planting depth or the operating load of the control lever can be finely adjusted according to the working conditions, etc.The planting amount control lever that moves the apron up and down and the plant that moves the float up and down In the transplanting machine provided with a depth adjustment lever, a lever guide of both levers is provided with a longitudinal adjusting hole for inserting a mounting bolt, and a seedling formed by a square pipe is provided. The main frame has a fixed long groove in the left and right direction to fix the mounting bolts, and the lever guides of both levers are mounted on the upper surface of the main frame so that they can be adjusted back and forth and left and right, so only the operation of changing the mounting bolts Thus, the mounting position of the lever guide can be easily adjusted forward, backward, left and right.

[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 square pipe extending in the left-right direction, and has a plurality of planter cases 7 extending rearward on the lower surface thereof. The planter 4 is axially mounted on a rotating shaft 9 provided at the rear end of the planter case 7 and fixed side by side via a bracket 8. A planter drive shaft 10 is disposed at the front of the planter case 7, and the power from the planter drive shaft 10 is transmitted to the rotating shaft 9 via a transmission mechanism built in the planter case 7,
The planter 4 is planted by the rotation of.

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 speed change case provided at one end of the screw shaft 18, and a speed change mechanism provided inside the speed change case 19 changes the rotation speed of the screw shaft 18 to set the seedling mounting table 5 at a desired lateral feed speed.

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 a long 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. Reference numeral 31 denotes a horizontal control mechanism of the seedling placement unit 2, 32 denotes a rolling spring stretched from a spring stay 33 to both sides of the seedling mounting table 5, and 34 denotes a rolling shaft of the seedling placement unit 2.

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.

Reference numeral 37 denotes a seedling scraping amount adjusting lever, and the apron 12 can be adjusted up and down by operating the seedling scraping amount adjusting lever 37. That is, the planter case 7
Apron mounting seat 3 consisting of a U-shaped plate
The apron 12 is fixed on the upper surface of the apron mounting seat 38 so as to be vertically slidable. On the lower surface side of the apron mounting seat 38, a rotating shaft 39 interlocking with the operation of the seedling scraping amount adjusting lever 37 is provided, and a cam body 40 provided on the rotating shaft 39 is provided on the apron mounting seat 38. It protrudes upward through the guide hole 41.

By locking the cam body 40 in the concave portion 12a of the apron 12, the cam body 40 which rotates in conjunction with the operation of the seedling scraping amount adjusting lever 37 operates.
The position of 2 is adjusted up and down to increase or decrease the amount of seedling scraped by the planter 4. 42 is a lever guide of the seedling scraping amount adjusting lever 37 provided on the main frame 6,
Reference numeral 43 denotes a seedling scraping port provided on the apron 12.

Reference numeral 44 denotes a center float provided below the planter case 7 for sliding on a rice field, and 45 denotes a side float. A fulcrum shaft 46 of these floats 44, 45
Oscillating link 47 pivotally supported on the lower surface side of the planter case 7
And is suspended vertically through the arm.

Numeral 48 denotes a planting depth adjusting lever. The distal end of the planting depth adjusting lever 48 is connected to the swing link 47 via a connecting link 49. A swing link 47 swinging in conjunction with the operation of (1) moves the floats 44 and 45 up and down to adjust the planting depth of the seedlings. Reference numeral 50 denotes a lever guide for the planting depth adjusting lever 48 provided on the main frame 6.

The mounting position of the lever guide 50 is configured to be adjustable in the front, rear, left and right directions. That is, as shown in FIG. 4, the main body of the lever guide 50 is formed of a member having a U-shaped cross section that is provided on the upper surface of the main frame 6 and that opens rearward, and a vertical guide groove 51 is formed on the front surface thereof. The guide groove 51 is provided with a planting depth adjusting lever 4.
A straight portion 8 penetrates obliquely upward and forward.
A plurality of lever notches 52 for engaging the planting depth adjusting lever 48 at a desired operation position are formed on the inner edge of the guide groove 51.

Reference numeral 53 denotes a mounting seat provided at the base end of the lever guide 50.
Is formed in the front-rear direction,
The mounting position of the lever guide 50 can be adjusted back and forth.

On the upper surface of the main frame 6, fixed long grooves 56 for fixing the mounting bolts 54 are formed in the left-right direction. By changing the mounting bolts 54 along the fixed long grooves 56, the levers are changed. The mounting position of the guide 50 is also adjustable in the left-right direction. Reference numeral 57 denotes a fixing nut insertion groove for screwing the mounting bolt 54 and fixing the fixing nut to the fixed long groove 56.

The mounting position of the lever guide 42 of the scraping adjustment lever 37 is also adjustable in the front-rear and left-right directions.
Since the configuration is the same as 0, detailed description is omitted. 58
Is a guide groove provided in the lever guide 42, 59 is a lever notch, and 60 is a mounting bolt.

Since the present invention is configured as described above, if the seedling scraping amount adjusting lever 37 is vertically turned along the guide groove 58 of the lever guide 42, the apron 12 moves up and down, and the planter 4 can be adjusted to increase or decrease the scraping amount of the seedlings.
By vertically operating the guide groove 51, the floats 44 and 45 can be moved up and down to adjust the planting depth of the seedlings.

When the lever guide 50 of the planting depth adjusting lever 48 is moved and adjusted in the front-rear direction, the lever guide 5 is adjusted.
Since the straight portion of the planting depth adjustment lever 48 obliquely penetrates the guide groove 51 of No. 0 forward and upward, the relative position of the planting depth adjustment lever 48 with respect to the guide groove 51 is vertically As a result, even if the planting depth adjusting lever 48 is engaged with the same lever notch 52, the rotation angle slightly changes. That is, if the lever guide 50 is moved forward, even if the planting depth adjusting lever 48 is engaged with the same lever notch 52, the downward rotation angle becomes large, and the lever guide 50 is moved backward. In some cases, even if the planting depth adjusting lever 48 is engaged with the same lever notch 52, the rotation angle becomes small. Therefore, fine adjustment of the planting depth in conjunction with the planting depth adjusting lever 48 can be performed only by adjusting the mounting position of the lever guide 50 back and forth.

When the lever guide 50 is moved and adjusted in the left-right direction, the planting depth adjusting lever 48 is
, And approaches and separates from the lever notch 52. Therefore, only by adjusting the lever guide 50 left and right, the lever operation load when the planting depth adjusting lever 48 is engaged with the lever notch 52 can be easily finely adjusted.

When the lever guide 42 is adjusted back and forth and right and left, the seedling scraping amount adjusting lever 37 operates in the same manner as described above, so that fine adjustment of the seedling scraping amount and fine adjustment of the lever operation load can be easily performed. be able to.

[0026]

In summary, the present invention relates to a transplanting machine provided with a seedling scraping amount adjusting lever for moving the apron up and down and a planting depth adjusting lever for moving the float up and down. Are mounted on the main frame of the seedling mounting section so that they can be adjusted freely.If the position of the lever guide mounted on the main frame is adjusted, the relative positions of both levers with respect to the lever guide are displaced. Fine adjustment of the attachment depth and fine adjustment of the lever operation load can be performed according to the working conditions.

Further, in a transplanter provided with a seedling scraping amount adjusting lever for moving the apron up and down and a planting depth adjusting lever for moving the float up and down, mounting bolts are inserted into the lever guides of both levers. In addition to providing a longitudinal adjustment hole in the front and rear direction, the main frame of the seedling planting part formed by a square pipe is provided with a fixed long groove in the left and right direction for fixing the mounting bolt, and the lever guides of both levers are respectively provided on the main frame. With the one that can be adjusted to the front and back and left and right freely, the mounting position of the lever guide can be adjusted to the front and rear and left and right only by changing the mounting bolt. The fine adjustment of the load can be easily performed.

[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 explanatory diagram of the operation of the above.

[Explanation of symbols]

 2 Seedling plant 6 Main frame 12 Apron 37 Seedling scraping amount adjustment lever 42 Lever guide 48 Planting depth adjustment lever 50 Lever guide 54 Mounting bolt 55 Adjusting slot 56 Fixed slot

Claims (2)

[Claims] 1. A transplanting machine provided with a seedling scraping amount adjusting lever for moving an apron up and down and a planting depth adjusting lever for moving a float up and down, wherein the lever guides of both levers are connected to a main portion of the seedling planting section. A lever guide mounting structure in a transplanter, wherein the lever guide is mounted on a frame so as to be freely adjustable. 2. In a transplanter provided with a seedling scraping amount adjusting lever for moving an apron up and down and a planting depth adjusting lever for moving a float up and down, mounting bolts are inserted into lever guides of both levers. In addition to providing a longitudinal adjustment hole in the front-rear direction, the main frame of the seedling planting section formed by a square pipe is provided with a fixed long groove in the left-right direction for fixing the mounting bolt, and the lever guides of both levers are respectively provided on the main frame. A lever guide mounting structure in a transplanter, wherein the lever guide is mounted on the upper surface so as to be adjustable in front, rear, left and right.