JPH11113319A - Carrying apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To dissolve a problem having fear moving an undercarriage on which operation equipment is carried immediately after removing from a traveling vehicle in unexpected place, though the undercarriage is positioned under the operation equipment and when the operation equipment is lowered, the equipment is received by the undercarriage and the operation equipment is removed from the traveling vehicle and stored. SOLUTION: This carrying apparatus is obtained by detachably installing operating equipment in a hitch disposed in a traveling vehicle and lifted and lowered by a driving apparatus, fixing an undercarriage 53 on which the operating equipment removed from the traveling vehicle is placed and forming the operating equipment lowered with the hitch so as to apply braking to the wheels 58 when carried on the undercarriage.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used for a placement device on which a seedling plant or other working equipment removed from a traveling vehicle body (including a tractor) is mounted.

[0002]

2. Description of the Related Art A hitch provided on a tractor or other traveling vehicle body is provided so as to move up and down by a hydraulic cylinder or other driving device, and a seedling plant and other working equipment are detachably mounted on the hitch. Then, after receiving the seedling lowering device with the hitch in the undercarriage, the seedling transplanting device is manually or automatically removed from the hitch, and the detached seedling transplanting device is moved to a predetermined position while being mounted on the undercarriage and stored. It has become.

[0003]

The undercarriage must be moved freely by wheels for alignment with the descending seedling plant. However, if the undercarriage freely moves even after the seedling plant is disengaged from the running vehicle body, there is a possibility that the seedling plant may move to an unexpected place due to inclination of the ground or the like.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a drive unit 14 provided on a traveling vehicle body 1.
The work equipment 2 is detachably attached to the hitch 12 which moves up and down, and the undercarriage 5 on which the work equipment 2 to be detached from the traveling vehicle body 1 rides
3 and a mounting device provided such that when the work equipment 2 descending with the hitch 12 rides on the chassis 53, the wheels 58 are braked.

[0005]

Next, an embodiment of the present invention will be described. A seedling plant (work equipment) 2 is attached to a traveling vehicle body 1 to form a rice transplanter (FIGS. 1 and 2). The traveling vehicle body 1 is configured as follows. A main gear box 4 and a rear wheel gear box 5 are provided before and after the frame 3, and a pair of front wheels 6 and a rear wheel 7 are mounted on both sides of each. An engine 8 is provided on the frame 3, and its power is adjusted to a predetermined speed by a transmission in the main gear box 4.
These are rotated on the cultivator (or road surface) of the paddy field, and the traveling vehicle body 1 is made to travel. When a seat 9 is provided on the engine 8 and a steering handle 10 disposed in front thereof is operated, the front wheels 6 are steered and the course of the traveling vehicle body 1 changes.

A support 11 extends upward from a rear portion of the frame 3, and both ends of a pair of links 13 parallel to the rear hitch 12 are rotatably mounted. A hydraulic cylinder (drive device) 14 is attached to the frame 3, and a tip of a piston rod 14 a projecting obliquely upward from the frame 3 is connected to a lower end of an arm 15 integrated with the upper link 13. 12 can be moved up and down while maintaining the same posture. The hitch 12 has a V-shaped receiving portion 16 at an upper portion and a hook 17 at a side portion, and is configured automatically.

The seedling plant 2 uses seedlings grown as follows. As shown in FIG. 3, a flexible resin plate 18a and a plurality of pots 18b arranged in front, rear, left and right are integrally formed, and the seedling box 1 is formed.
It is 8. Each pot 18b is open upward and has an extrusion hole at the bottom. Feed holes 18c having the same pitch as the pots 18b arranged in front and rear are provided on both sides of the resin plate 18a. In the figure, the left and right pots 1
8b is composed of 14 pieces, and the middle is open. Each pot 18b is filled with floor soil, and two or three grains are sowed thereon, covered with soil and watered. After a predetermined number of days, seedlings for one plant grow in each pot 18b, and the roots growing in the floor soil grow along the inner wall of the pot 18b to form a root pot.

The seedling plant 2 is constructed as follows. A machine frame 19 is detachably attached to the rear surface of the hitch 12. That is, the machine frame 19 is configured such that the upper pin 20 is supported by the receiving portion 16, and the side pin 21 is pulled forward by the hook 17 and fixed. The center (FIG. 4) of the horizontally long sleeve 22 is attached to the lower part of the machine frame 19 so as to swing around the rolling shaft 23 in the front-rear direction. A part of the power of the engine 8 in the main gear box 4 is introduced into the sleeve 22 by the input shaft 24. Four seedling planting units 25 for transplanting seedlings to the left and right
Are arranged side by side to form an eight-row seedling planting apparatus 2.

[0009] Each seedling plant 25 is configured as follows. A gear box 26 projects forward from the sleeve 22, and a pair of cases 27 project upward on both sides thereof. A pair of seedling mounting tables 28 and 29 on which the seedling boxes 18 are mounted are arranged vertically on the rearward and downward slopes, and opposed U-shaped rails 30 are provided on both sides so as to hold both sides of the seedling box 18. It is made. The upper and lower rails 30 are the seedling mounting tables 28, 2
9 and merge into a single piece, then descend almost vertically, bend in a U-shape inside the case 27, and
9 has reached the receiving box 31 below. The left and right cases 27
An upper end is connected, and a support column 32 extending upward from the connection portion is bent forward to support the seedling mounting tables 28 and 29 and the receiving box 31.
The seedling boxes 18 on the seedling stands 28 and 29
At 8a and 29a, the rail 30 is extended to the vertical portion so as to be continued one box at a time.

Box feed shaft 3 rotated by power in sleeve 22
3, an extruding shaft 34, and a seedling transmitting shaft 35 that swings by its power protrude from the side surface of the gear box 26. Box feed shaft 33
Is rotated, the cam is rotated by the lever 36 and the intermediate shaft 36a.
And the rod swings the bell crank 37 and the pawl 38
Move up and down to intermittently lower the seedling box 18. The same number of extrusion pins 3 as the horizontally arranged pots 18a
Reference numeral 9 is provided between the left and right cases 27 so that the rotation of the extrusion shaft 34 is transmitted by a crank, a rod 40, or the like, and moves forward and backward. Then, when moving backward, the pots 18a rush from the bottom into the horizontally arranged pots 18a and push out the seedling pots later. Both sides of a carrier 41 (FIG. 2) disposed after the rail 30 are attached to the right and left cases 27 by a pair of parallel links 42, so that the root pot of the seedling extruded by the pushing pins 39 can be received by the holder. ing. When the parallel link 42 swings by rotation of the seedling feed shaft 35, the carrier 41 descends in the same posture, and transfers the seedling to the next belt conveyor 43 (FIG. 4) at the lower end.

A pair of belt conveyors 43 are provided side by side below the bends of the rails 30 so that the upper surfaces of the respective belts can be turned outwardly by the power within the sleeve 22. That is, each belt conveyor 43 has 7
The individual seedlings ride side by side with their leaves behind and are sent out to each other. Guide plates 44 (FIG. 4) are provided above and below each belt conveyor 43. A pair of implant cases 45 extend rearward from the sleeve 22 outside the respective belt conveyors 43, and the rear drum 46 is rotated by the power in the sleeve 22 in a counterclockwise direction as viewed from the left. The planting rod 47 projects from the drum 46 and undulates during rotation, so that the seedlings pushed down along the guide plate 44 are transplanted to the mud so as to stand up at the lower end. Then, the feeding of the seedling box 18 by the claws 38, the pushing out of the seedlings by the push pins 39, and the feeding of the seedlings by the carrier 41 are repeated at regular intervals so that the intervals before and after the transplanted seedlings are constant. Done. The seedling box 18 in which the seedlings have been extruded and emptied is placed in a seedling box
At 8, it is sent to the receiving box 31. Central implanting case 45
Is shared with an adjacent seedling plant 25.

A float 48 is arranged below the belt conveyor 43, and slides on a mud surface as the traveling vehicle body 1 advances. Then, the front portion projects right and left, and the projecting portion is made to level the ground in advance at the position where the seedling is transplanted. Support plates 49 project upward from the side surfaces of the respective gear boxes 26, and are connected by horizontal rods 50. Operating shaft 5
1 is attached to the lower abdomen of each implant case 45,
The lever 51a (FIG. 5) swings when operated. The four arms 52 extend rearward from the operating shaft 51, and the rear part of the float 48 is attached to each rear end. The depth can be adjusted.

When the power transmission of the input shaft 24 is cut off and oil is sent to the hydraulic cylinder 14 to cause its piston rod 14a to protrude, the seedling plant 2 rises above the ground. Chassis 53
Is configured as follows. Casters 55 are provided at the four corners of the table 54 (FIG. 6). Rear caster 55
Is as shown in FIG. That is, the fork 56 is attached so as to rotate around the longitudinal axis 57, and the wheel 58 is attached to the lower part of the fork by an axle 59 so as to rotate. Then, a hollow column 60 extends upward from the table 54, and a column 61 having a V-shaped receiving member 61 a is inserted into the column 60 from above and pushed up by a spring 62. A push rod 63 extending downward from the lower end of the support rod 61 reaches the inside of the fork 56 through the center of the longitudinal axis 57. When one end of a pad 64 made of a spring material is fixed to the fork 56 and the push rod 63 is lowered, the lower end of the pad 64 hits the center and the other end of the pad 64 is pushed down. (Attached) to stop the rotation.

An arm 65 extends rearward from the support rod 61, and a middle of a lever 66 rotatably attached to the support column 60 and a protruding end thereof are connected by a link 67. A pair of support pieces 68 extend rearward from the column 60 on the left and right sides of the arm 65, and are provided so that pins 69 can be inserted into and removed from the respective holes 68a. When the lever 65 is operated in the counterclockwise direction in FIG. 7 to raise the arm 65 and the pin 69 is inserted into the hole 68a, the arm 65 is supported by the pin 69 and braking of the wheel 58 by the pad 64 is prevented. You.

A pair of columns 70 extend upward from the left and right sides of the front portion of the base 54, and V-shaped receiving members 70a are provided at respective protruding ends. Therefore, the undercarriage 53 from which the pin 69 has been removed is pushed under the raised seedling planting device 2 and the hook 17
Is removed from the pin 21 and the oil in the hydraulic cylinder 14 is returned to the tank. Then, the seedling plant 2 descends, and the horizontal rod 50 and the operating shaft 51 are received by the pair of receiving members 70a and 61a, respectively. At this time, the seedling planting device 2
And the height of the receiving member 61a, it tilts slightly forward from the posture of FIG. Then, the hitch 12 is further lowered so that the receiving portion 16 is separated from the pin 20, and the seedling plant 2 is separated from the traveling vehicle body 1. For those with a fertilizer applicator as shown in the figure, the hose must be separated in advance.

At this time, the support rod 61 compresses the spring 62 by the load of the seedling plant 2 and descends.
4. The lower part of the pad 64 contacts the wheel 58 to prevent its rotation. When moving the undercarriage 53 on which the seedling plant 2 is mounted, the lever 66 is lifted, and the pin 69 is inserted into the hole 68 a under the arm 65. Then, the support rod 61 stops at a position where the lower end of the push rod 63 rises from the pad 64, and the braking of the wheel 58 by the pad 64 is released. Therefore, the wheels 58 rotate freely and the chassis 53 moves lightly. When it comes to the predetermined position, pin 6
Pull out 9 and stop moving.

Although the control device is provided on the rear receiving member 61a in the drawing, it can be provided on the front receiving member 70a side to brake the front wheel 58. In particular, when the hitch 12 is configured to be automatic and lowered, the receiving portion 61a supports the rear portion of the seedling plant 2, and then the seedling planting device 2 goes down and the front portion is supported by the receiving portion 70a. Then, the undercarriage 53 can be moved until the support by the undercarriage 53 is completed, and the positioning thereof becomes smooth.

With the configuration as shown in the left half of FIG. 8, the gear box 26 of the pair of seedling units 25 can be shared in the seedling plant 2 described above. That is, the sleeve 22 and the gear box 26 are fixed in the middle of the left and right seedling mounting tables 28, and the box feed shaft 33 (or the intermediate shaft 36 a), the pushing shaft 34, and the seedling feed shaft 35 are protruded left and right from the gear box 26. A predetermined portion of the left and right seedling planting units 24 is driven. Then
The gear box 26 and the gear group therein are halved, so that the seedling plant 2 is lightweight and inexpensive. In addition, as shown in FIG. 8, when the seedling plant 2 is configured as a six-row planting, one of the gear boxes 26 in which the above-described shafts protrude to one side can be used.

The rail 30 is fixed to the opposing surfaces of the pair of cases 27, and the space between them serves as a passage for the seedling box 18. Therefore, if the gear box 26 is provided between the pair of cases 27 as in the related art, 26 is tilted forward so as not to overlap with the rail 30, but according to the configuration of FIG.
6 can be set upright and viewed from the side, and can be stacked on the rail 30 (FIG. 9). Then, the seedling transplanting device 2 approaches the traveling vehicle body 1, shortening the overall length of the rice transplanter and improving the weight balance.

When the seedling plant 2 is constructed as a six-row plant shown in FIG. 8, the rolling shaft 23 is located at the center of the plant and there is a possibility that the right and left balance may be lost, but the input shaft 24 is shifted to the light side. And the direction of rotation can be devised to maintain balance.

[0021]

As described above, according to the present invention, the chassis 53
When the work equipment 2 rides, the wheels 58 are automatically braked, so that the possibility that the work equipment 2 distant from the traveling vehicle body 1 moves to an unexpected place is eliminated.

[Brief description of the drawings]

Fig. 1 Side view of rice transplanter

FIG. 2 is a plan view thereof.

FIG. 3 is a plan view of a seedling box for making seedlings used for the rice transplanter.

FIG. 4 is an enlarged plan view of a part thereof.

FIG. 5 is a side view thereof.

FIG. 6 is a perspective view of an undercarriage on which the seedling planter rides.

FIG. 7 is a partially enlarged sectional side view.

FIG. 8 is a plan view of a part of the improved rice transplanter.

FIG. 9 is a side view thereof.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Running vehicle body 2 Working equipment (seedling planting apparatus) 12 Hitch 14 Drive unit (hydraulic cylinder) 53 Chassis 58 Wheels

Claims (1)

[Claims] 1. A work equipment 2 is removably mounted on a hitch 12 provided on the traveling vehicle body 1 and moved up and down by a driving device 14, and a chassis 53 on which the operation equipment 2 detached from the traveling vehicle body 1 rides.
And a mounting device provided so that when the work equipment 2 lowered together with the hitch 12 rides on the chassis 53, braking is applied to the wheels 58.