JP3330775B2 - Lateral feed shift lever of rice transplanter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for facilitating the assembly of a lateral feed shift lever in a planting portion of a rice transplanter and facilitating operation of the lateral feed shift lever and a vertical seedling removal amount adjusting lever.

[0002]

2. Description of the Related Art Conventionally, in a planting portion of a riding rice transplanter, a seedling mounting table is connected to a sliding child receiver that slides reciprocally on a horizontal feed shaft, whereby the seedling mounting table is reciprocated in the horizontal direction. In the planting transmission case, a shifter is slidably provided on the traverse transmission shaft by meshing a traverse transmission gear with a driven gear of the traverse shaft,
A configuration is known in which the shifter and one of the transverse feed gears are fitted to perform a speed change operation of rotation of the transverse feed shaft. This shifter was connected to a speed change operation shaft via a fork.

[0003]

However, in the prior art, the lever guide of the traverse transmission lever has an open front surface so that members such as an internal gearshift shaft can be easily exposed from the outside. The structure was so unwieldy that a foreign object could enter the inside and hinder the lever operation. Also, the operation direction of the lever for adjusting the same seedling picking amount is the vertical picking amount in the vertical direction, whereas the operation direction of the lateral feed shift lever is the front-back direction or the rotating direction. Low awareness of the
The configuration was difficult to use.

[0004]

The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described. That is, in the configuration in which the lateral feed shift of the seedling table in the rice transplanter is performed in the planting mission case,
The lever guide of the lateral feed shift lever was arranged above the lever guide of the vertical seedling collection adjusting lever, and both lever guides were integrally arranged on the side of the planting transmission case. In addition, a pivot point for the lateral feed shift lever is provided in the lever guide of the vertical seedling removal amount adjusting lever.

[0005]

According to the present invention, by using the above-described means, the internal members such as the shift operation shaft and the arm are mounted on a lever guide for adjusting the amount of vertical seedlings to be taken, and a lateral feed shift is provided on the upper surface of the lever guide. By disposing the lever guide of the lever, the internal components are sufficiently covered, so that foreign matter does not enter and a cover excellent in design can be formed. Also, a vertical seedling picking amount adjusting lever and a lateral feed shifting lever for lateral feed amount adjustment are disposed near each other, the vertical seedling picking amount adjusting lever is operated in the vertical direction, and the horizontal feed shifting lever is moved in the horizontal direction. The operation is performed in the same direction, and the operability from the driver's seat is improved, and the operation feeling is improved.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a side view of a rice transplanter adopting the present invention, FIG. 2 is a partial front sectional view showing a transmission system in a planting transmission case M, and FIG. 3 is a partial partial front view showing a power transmission structure to a vertical feed belt. FIG. 4 is a partial cross-sectional side view showing a configuration in which the transverse feed lever of the present invention is disposed. FIG. 5 is a partial front sectional view showing a configuration in which the transverse feed lever of the present invention is disposed. FIG. 7 is a cross-sectional side view of the lateral feed lever cover.
8 is a side sectional view of the unit clutch cover, FIG. 8 is a front sectional view of the same unit clutch cover, and FIG. 9 is an internal front view of a planting transmission case M showing a transverse feed transmission mechanism by sliding operation of a transmission operation shaft.

The overall structure of the riding rice transplanter will be described with reference to FIG. In the traveling vehicle A, the power of the engine E is transmitted to the transmission case C, and the front wheels FW, the rear wheels RW and P
Driving TO axis. A planting portion B is connected to the rear portion of the traveling vehicle body A via parallel links 43 and 44 so as to be able to move up and down. In the planting section B, a planting mission case M is disposed in the center of the lower front part. In the planting mission case M, the plant is transmitted from the PTO shaft to the input shaft 30 via a universal joint or the like. .

The seedling mounting table 24 is mounted on the guide rail 25 so as to be slidable reciprocally in the horizontal direction, and the seedling mounting table 24 is mounted on the seedling mounting table 24 by driving a seedling feed belt 28 below the seedling mounting table 24. Forcibly lower the seedling mat downward. In addition, a plurality of planting transmission cases 33 projecting rearward from the planting mission case M are driven to drive a planting claw 37 disposed at the tip of a rotary case 36 disposed at the rear end thereof. Is inherited from the lower end of the seedling mounting table 24 and is planted in the field. A center float 39 and left and right side floats 40 are suspended from the lower part of the planting portion B so as to be able to move up and down.

Next, the drive system of the planting section B will be described with reference to FIG. In the planting transmission case M, the input shaft 30 is transmitted to the transmission shaft 31 via a bevel gear, and the planting nail drive shaft 32 is driven by the transmission shaft 31 by chain transmission. Power is transmitted to a transmission case input shaft 34 and a planting claw transmission shaft 35 in a planting transmission case 33 having a front end fixed to the planting transmission case M, and a transmission case input shaft in each planting claw transmission case 33. From 34, the rotary case 36 is driven to rotate by chain transmission, and the planting claw 37 is also driven.

On the other hand, an eccentric gear 31a provided on the transmission shaft 31 and an eccentric gear 21b provided on the transmission shaft 21 are meshed with each other to be transmitted to the transmission shaft 21, and the transmission shaft 21 is connected to the transmission gears 21a. Are loosely fitted and meshed with the shift driven gears 22a fixed to the transverse feed shaft 22. Further, a shifter 20 slidably attached to the transmission shaft 21 is connected to one of the transmission gears 21a, 21a, and the speed is arbitrarily changed to drive the transverse feed shaft 25 at a variable speed.
As shown in FIG. 9, the shifter 20 is connected to a shift operation shaft 16 via a fork 19, and the shift operation shaft 16 is slid by manual operation of the lateral feed shift lever L1. Thus, the shifter 20 can slide.

The lateral feed shaft 22 is provided with a groove 22b for sliding a sliding member. A sliding member receiver 23 is loosely fitted in the lateral feed shaft 22, and the sliding member receiver 23 is fitted in the groove 22b.
The sliding element 23a attached inside is inserted into the horizontal feed shaft 2
With the rotation of 2, the sliding element 23a slides in the groove 22b, and the sliding element receiver 23 reciprocates on the lateral feed shaft 22 left and right. Further, the sliding child receiver 23 has a connecting portion 23b protruding rearward, a seedling mounting table 24 connected to the connecting portion 23b, and reciprocating left and right by the rotation of the lateral feed shaft 22.

In the planting transmission case M, the vertical feed shaft 2 is driven by a chain drive from the horizontal feed shaft 22.
6 is driven, and a vertical feed cam 26a is provided on the vertical feed shaft 26.
The vertical feed cams 26a are protrudingly provided, and the vertical feed cams 26a are arranged so as to be in contact with a driven cam 27 shown in FIG. It is composed.

As shown in FIG. 4, the base end of the vertical seedling removal amount adjusting lever L2 is connected to a rotating shaft 25 of a guide rail 25.
When the guide rail 25 is rotated from the front upper side to the rear lower side by the vertical rotation operation of the vertical seedling removal amount adjusting lever L2, the seedling mounting placed on the guide rail 25 is accordingly performed. The driven cam 27 disposed below the table 24 also rotates, and the contact position with the vertical feed cam 26a changes. Therefore, the amount of rotation of the driven cam 27 due to the pressing of the vertical feed cam 26a varies, and based on this,
The amount of transport in the vertical direction by the seedling feed belt 52 is adjusted, and the amount of seedlings collected in the vertical direction is adjusted.

Then, as shown in FIG.
Are fixed to the left and right sides of the front surface (lower surface) of the vehicle. A guide member 51 is vertically arranged between the reinforcement rail 50 and the guide rail 25. Has been established. Vertical feed rollers 28 are pivotally supported at upper and lower positions of the guide members 51, 51,.
The vertical feed belts 52 are wound around the vertical feed rollers 28. Also, a connecting rail 53 is disposed in the left-right direction at an intermediate position of the vertical feed rollers 28 in the vertical direction.

The lower longitudinal feed roller 28.2
Are fixedly mounted on the drive shafts 54, 54,..., And a stop clutch 55 is interposed between the drive shaft 54 and the drive shaft 54. By disengaging the stop clutch 55, The drive of the vertical feed roller 28 is stopped, and the vertical feed of the seedling by the vertical feed belt 52 can be stopped.

As shown in FIG. 1, an operating lever 60 for operating the locking clutches 55 is disposed on the upper part of the front surface of the seedling mounting table 24. The structure of the operating lever 60 is shown in FIGS. As shown in (1), it is pivotally supported by the unit clutch cover U. The unit clutch cover U is composed of a fixed cover 56 and a mounting cover 57. The fixed cover 56 is bowl-shaped and has a side surface 56d and an outer peripheral surface 56e. Outer supports 58, 58, 58 can be attached to the surface 56e. Above the outer peripheral surface 56e of the fixed cover 56, a cutout portion 56a cut out toward the side surface is provided,
A rectangular opening 56b on the side of the outer peripheral surface 56e
Is provided. Further, mounting holes 64 are opened in the side surface 56d, and the fixing cover 56 can be fixed using pins or the like.

An operating lever 60 is connected to the fulcrum pin 59.
Is pivoting. A grip 6 is attached to one end of the operation lever 60.
0b is provided, and the other end is provided with a fastening pin 61, and a clutch wire is connected through an inner end 62. The clutch wire is connected to the outer receptacle 58.
・ 58 ・ 58

The mounting cover 57 is bowl-shaped and has a side surface 57d and an outer peripheral surface 57e.
7 is larger than the opening surface of the fixed cover 56. Further, a cutout portion 57a is formed above the outer peripheral surface 57e of the mounting cover 57 toward the side surface. On the side, a convex portion 57b projects inward, and an open portion 57c is provided below the outer peripheral surface.

When the fixing cover 56 is fitted and fixed to the fixing cover 56, the fixing cover 56 is fixed to the seedling mounting table 24, and the operation lever 60 is fixed to the pivot pin 59.
When the mounting cover 57 is fitted as shown by the arrow in FIG. 7 after pivoting, the clutch wire extending outside the outer receptacles 58, 58, 58 interferes with the opening of the opening 57c. I will not do it. Further, the notch 56a of the fixed cover 56 and the notch 5 of the mounting cover 57
7a, an opening is formed in the upper part, so that the operation lever 60 can be rotatably protruded outward. Therefore, the fixed cover 56 and the mounting cover 5 are viewed from the side.
7 can be wrapped, and a thin cover can be formed. The openings 56b and 56
b, the convex portions 57b are inserted into the mounting cover 5b.
7 can be formed into a simple fitting structure for locking the fixing cover 56, and a configuration that can be securely fixed.

Next, the lever guides 1 and 2 of the vertical seedling removal amount adjusting lever L2 and the lateral feed shift lever L1 will be described with reference to FIGS. A fixed cover 13 is fixedly provided on a side surface of the planting mission case M.
Reference numeral 3 extends laterally, and the lever guide 1 is fixedly provided on the side surface of the fixed cover 13. The lever guide 1
A guide groove 1a is formed in the front of the vertical direction, and the vertical feed amount adjusting lever L2 can be protruded from the guide groove 1a.
Since notches 1b and 1b are provided at the right edge of the guide groove 1a, the vertical seedling removal amount adjusting lever L2 is turned up and down so that a stopper portion which is a notch fitting portion at a desired fixed position. Can be fitted into the notch 1b to engage and fix the vertical seedling removal amount adjusting lever L2 at an arbitrary height.

FIG. 9 shows a speed change operation mechanism for rotating the traverse shaft 22 by operating the traverse speed change lever L1.
This will be described with reference to FIG. In the planting transmission case M, a shifter 20 on the transverse feed shaft 21 and a fork 19
The gear shift operation shaft 16 connected by is horizontally slidably provided in the left-right direction. The right end portion of the speed change operation shaft 16 has a detent structure and is formed in accordance with the number of set positions of a lateral feed speed change lever L1 described later.

On the other hand, as shown in FIGS. 4 to 6, the left side of the speed change operation shaft 16 protrudes from the left side of the planting transmission case M, and extends to the inside of the lever guide 1. A compression spring (not shown) is externally fitted near the distal end, and the sliding cylinder 12 is mounted on the speed change operation shaft 16 including the compression spring, and the speed change operation shaft 16 is
By moving the sliding cylinder 12 in the left-right direction, the shift operation shaft 16 can be pressed and slid in the left-right direction against the compression spring.

A support member 7 is fixed inside the lever guide 1, and a fork rotation shaft 8 is disposed in the front-rear direction so as to be rotatable with respect to the support member 7. The upper end of a fork 9 made of two front-back parallel plates is pivotally supported on the fork rotation shaft 8, and the fork rotation shaft 8 is moved via the fork 9 to the sliding cylinder 12 (speed change gear). The lower end of the fork 9 is pivotally connected to the left end of the sliding cylinder 12. On the other hand, a U-shaped rotating arm 4 is extended from the base end of the lateral feed shift lever L1 so as to open downward.
A pivot pin 5 is pivotally supported by the pivot arm 4 in the left-right direction,
The transverse feed shift lever L1 can be pivoted back and forth about the pivot pin 5, and a boss (not shown) is provided on the pivot pin 5, and the upper end of the fork 9 is fixed to the boss. Thus, the transverse feed lever L1 and the fork 9 are integrated.

Then, the transverse feed lever L1 of the present invention is used.
Is pivotally supported by the fork rotation shaft 8 so as to be able to swing left and right. The fork rotation shaft 8 is pivotally supported by a support member 7 fixed below the upper surface of the lever guide 1. Supported. Further, a stopper 3 for notch fitting is projected from the front end of the lateral feed transmission lever L1, and one end of a tension spring 10 is locked to the stopper 3, and the other end of the tension spring 10 is The lateral feed shift lever L1 is urged forward by being locked on the upper surface of the lever guide 1. For this purpose, the lateral feed shift lever L1 is structured to be pivotally supported by the lever guide 1.

Then, above the lever guide 1, FIG.
And a horizontal feed lever guide 2 shown in FIG. The traversing lever guide 2 has a tension spring 10 and a base end portion of the traversing shift lever L1 and the like inside, and has a front surface and a rear surface of the traversing lever guide 2, Overlapping portions 2c and 2d that overlap each other are formed at the upper portion, and can be fixed to the lever guide 1 using bolts and nuts at the overlapping portions 2c and 2d. A lever guide groove 2a is formed on the upper surface of the lateral feed lever guide 2 in the left-right direction.
The notches 2b, 2b,...
Is cut. The lateral feed shift lever L1 is projected upward into the lever guide groove 2a, and the transverse feed shift lever L1 is urged forward by the tension spring 10. When the shift operation is performed, the notch 2b is attached to the notch 2b. 3 can be fitted to fix the sliding of the lateral feed shift lever L1 in the left-right direction.

With this configuration, the tension spring 10 provided on the lateral feed shift lever L1 can be easily locked on the lever guide, and the lateral feed lever guide 2 is erected above it. Thereby, the tension spring 10 and the rotation base of the lateral feed shift lever L1 can be covered. Further, a simple assembly structure using bolts and nuts can be achieved.

[0027]

According to the present invention, the following effects can be obtained by the configuration described above. That is, by disposing a lateral feed speed change lever that adjusts the amount of laterally sown seedlings above the vertical seedling amount adjustment lever that adjusts the amount of vertically sewn seedlings on the seedling mounting table, the operator can feed the laterally slidable seedlings. Since the left and right operation direction of the speed change lever and the lateral feed direction match, it is easy to understand and the operation feeling is improved. Also, since the lever guide for the traverse feed speed change lever can be assembled later, the assembling of the traverse speed shift lever can be facilitated, and the lever guide has a function of a cover so that the internal movement can be achieved. , And a cover excellent in design can be provided. In addition, since both levers are configured to be locked in the notch, the operation is unified and the structure is easy to handle.

[Brief description of the drawings]

FIG. 1 is a side view of a rice transplanter employing the present invention.

FIG. 2 is a front partial cross-sectional view showing a transmission system in the planting mission case M.

FIG. 3 is a partial front sectional view showing a structure for transmitting power to a vertical feed belt.

FIG. 4 is a partial cross-sectional side view showing a configuration in which a lateral feed shift lever of the present invention is arranged.

FIG. 5 is a partial front cross-sectional view showing a configuration in which a lateral feed shift lever of the present invention is arranged.

FIG. 6 is a side cross-sectional view of a lateral feed lever cover.

FIG. 7 is a side sectional view of a unit clutch cover.

FIG. 8 is a front sectional view of the unit clutch cover.

FIG. 9 is an internal front view of an implanted transmission case M showing a lateral feed transmission mechanism by a sliding operation of a transmission operation shaft.

[Explanation of symbols]

 M Transmission case with planting L1 Lateral feed shift lever L2 Vertical seedling removal amount adjustment lever 1 Lever guide 2 Lateral feed lever guide 8 Rotating shaft 10 Tension spring 16 Speed change operation shaft 24 Seedling stand

Claims (2)

(57) [Claims] 1. A lateral shift of a seedling table in a rice transplanter,
In the case of the planting mission case, the lever guide of the transverse feed transmission lever is arranged above the lever guide of the vertical seedling removal amount adjusting lever, and both lever guides are integrally arranged on the side of the planting mission case A lateral feed shift lever of a rice transplanter, characterized in that: 2. A laterally-moving transmission lever of a rice transplanter, characterized in that a rotation fulcrum of a laterally-moving transmission lever is provided on a lever guide of the vertical seedling collecting amount adjusting lever according to claim 1.