JPH1110A - Planting device for transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the subject device so designed as not to generate large noise by wholly closing the opener of a planting cylinder when an inner scraper is put through downward off the opener of the planting cylinder. SOLUTION: This planting device for a transplanter is so designed that, during the rising process of a planting cylinder, a pair of openers 58 are closed and an inner scraper 69 is advanced into the openers 58, and then moved downward inside the openers 58 as the planting cylinder 35 rises, and allowed to go off the lower end so as to scrape the soil adhered to the inner surface of the openers 58 downward. In this case, the openers' closing time is set so as to wholly close them after the inner scraper 69 is put through the openers downward.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a planting apparatus for a transplanting machine for planting vegetable seedlings on a ridge or the like in a field.

[0002]

2. Description of the Related Art A conventional transplanter is provided with a spring for urging the opener of a transplanting tube to close it, and the opening and closing operation is performed by pulling the opener against the spring in conjunction with raising and lowering of the transplanting tube. Provide an interlocking device for raising and lowering the planting tube, dropping the seedlings into the planting tube when the planting tube rises, opening the opener of the planting tube when the planting tube descends, planting the seedlings, The inner scraper enters the opener in the process of raising the attachment cylinder, moves the inner scraper downward in the opener with the rise of the planting cylinder and projects from the lower end, and removes the soil adhering to the inner surface of the opener. Although there is one that scrapes off, in the conventional case, the opening and closing operation of the opener of the planting tube does not consider the relationship with the position of the inner scraper, and the inner scraper moves from the opener of the planting tube. Before escaping downward, Opener of the tube was adapted to all closed.

[0003]

However, as described above, the inner scraper is completely closed before the inner scraper exits downward from the opener of the planting tube. There is a problem in that the opener of the planting tube closes vigorously when it comes out from the opener of the planting tube downward, and at this time, a loud noise is generated.

[0004] In view of the above problems, the present invention prevents the opener of the transplanting cylinder from fully closing when the inner scraper comes down from the opener of the transplanting cylinder, and does not generate loud noise. Things.

[0005]

According to a first technical means of the present invention for solving the above-mentioned problems, a planting cylinder 35 having a pair of openable and closable openers 58 at a lower portion is provided so as to be movable up and down. The seedlings 28 are dropped into the planting tube 35 when the planting tube 35 rises, and the pair of openers 58 of the planting tube 35 are opened when the planting tube 35 descends, so that the seedlings 28 are planted. , The pair of openers 58 are closed, and the inner scraper 69 is advanced into the opener 58, and the planting cylinder 3 is closed.
5, the inner scraper 69 is moved downward in the opener 58 along with the riser, and is pulled out from the lower end of the opener 58, and the soil attached to the inner surface of the opener 58 is scraped down. The inner scraper 6
The point is that the closing time of the opener 58 is set so that the opener 58 of the planting tube 35 is fully closed after the 9 has exited downward from the opener 58 of the planting tube 35.

The second technical means comprises a planting tube 35 provided with an openable and closable opener 58 at a lower portion, and a device frame 38 for supporting the planting tube 35 so as to be able to move up and down.
8 is provided between the apparatus frame 38 and the planting tube 35, and the opener 58 is pulled between the device frame 38 and the planting tube 35 by pulling the opener 58 against the spring 62 in conjunction with the vertical movement of the planting tube 35. In the implanting device of the transplanting machine provided with an interlocking tool 61 to be operated and provided with an inner scraper 69 which moves downward in the opener 58 and comes out from its lower end in the process of ascending the transplanting cylinder 35, the inner scraper 69 Is planting tube 3
5 after having fallen downward from the opener 58 of the planting cylinder 35.
The interlocking tool 61 is configured so that the opener 58 is completely closed.

Therefore, when the planting cylinder 35 is further raised,
The inner scraper 69 moves into the opener 58 and moves downward to scrape off the soil adhering to the inner surface of the opener 58, in contrast to the rise of the planting cylinder 35. Then, when the inner scraper 69 exits downward from the opener 58 of the planting tube 35, the planting tube 3
The fifth opener 58 is not completely closed, and after the inner scraper 69 comes out from the opener 58 of the planting tube 35, the opener 58 is fully closed.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG.
1 is a walking type having a steering handle 13 at a rear portion of the traveling vehicle 12, and runs in the longitudinal direction across the ridge 14, and covers a soild seedling 28 shown in FIG. 14 at predetermined intervals.

[0009] The traveling vehicle 12 has a gantry 16 at a front portion thereof.
An engine 17 is mounted on the gantry 16, and the engine 17 is covered with a bonnet 18. A transmission case 19 is fixed to the rear of the gantry 16, and is formed with a square pipe or the like at the rear of the transmission case 19. The front part of the main frame 15 is fixed, and the rear part of the main frame 15 is bent upward to serve as a mounting part for the steering handle 13. The power of the engine 17 is transmitted to the transmission case 19 by a wrapping transmission or the like.

The power from the inside of the transmission case 19 is supplied to a wheel transmission shaft 20 projecting to the left and right sides, and to the wheel transmission shaft 2.
The first PT provided rearward from the left side and protruding left and right.
An O-shaft 21 and a second PTO shaft 22 projecting rearward and upward are taken out by three systems. The left and right ends of the wheel transmission shaft 20 support left and right drive wheels 24 (rear wheels) via a transmission case 23 that swings up and down around the axis.
The drive wheels 24 can be driven by the internal winding transmission 25. This drive wheel 24 rolls in the groove between the ridges 14. In addition, a pair of left and right front wheels 26 and a ridge height detection roller 27 are provided at a front portion of the traveling vehicle 12.

[0011] At the rear of the traveling vehicle 12, a transplanting operation section 29 is provided.
Is provided. The transplanting operation unit 29 includes a seedling supply device 30 and a planting device 31 for planting the soild seedlings 28 supplied from the seedling supply device 30 into the ridges 14 by the planting cylinder 35.
And a multi-film M
And a multi-film punching device 32 for punching a transplantation hole. The seedling supply device 30 is driven by the rotational power of the second PTO shaft 22, and the planting device 31 and the multi-perforation device 32
Are driven by the rotational power of the first PTO shaft 21.

The seedling supply device 30 is mounted on the main frame 15 and has a pot portion 33a where the soild seedling 28 is raised.
While transferring the seedling trays 33 arranged in a large number of rows and columns in the horizontal and vertical directions, the planting device 31
At a predetermined seedling removal position, the seedlings 28 are taken out one by one with the seedling removal claw 34, and the soild seedlings 28 are transported above the planting device 31 and then dropped into the planting cylinder 35 for mounting. It is made to enter. The seedling tray 33 is made of resin and has flexibility, and a large number of pot portions 33 are arranged vertically and horizontally.
a protruding from the rear surface, and each pot portion 33a
Seedlings 28 are raised.

A transmission shaft connected to the second PTO shaft 22 is connected to the power receiving shaft 36 of the seedling supply device 30 via a universal joint, and the above operation is repeated by the power from the transmission shaft. The planting device 31
As shown in FIG. 3, the multi-film punching device 32 is provided on a device frame 38 supported on the first PTO shaft 21 of the transmission case 19 so as to be vertically swingable.

A drive shaft 41 is rotatably supported on the device frame 38. The power from the drive shaft 41 is transmitted to the planting device 31 and the multi-perforation device 32. A pressure-reducing / covering roller 46 is provided at the rear of the device frame 38, and the rear end of the device frame 38 is hung by the main frame 15, and follows the height of the ridges 14. Can be swung up and down.

The multi-film perforating apparatus 32 includes a gas burner type perforating means 47, and the perforating means 47 is vertically movable via a parallel link 48.
It is connected to. Upper link 48a of the parallel link 48
, A cam roller 50 is pivotally mounted. The cam roller 50 includes a disk-shaped flat cam 51 provided on the drive shaft 41.
Roll around the outer periphery of the piercing means 4
The cam roller 50 is urged in the direction of pressing the cam roller 50 against the outer periphery of the cam 51 by its own weight of 7, or by urging means such as a tension spring.

A concave portion is formed in a part of the cam 51 in the circumferential direction. When the cam roller 50 falls into the concave portion, the perforating means 47 moves downward, and the heating means provided at the lower end of the perforating means 47 is provided. By pressing the body 52 against the multi-film M, a transplant hole is made in the multi-film M. Further, the cam 51 is formed so as to raise the perforating means 47 immediately after perforating the multi-film M, and the other parts except the recess hold the perforating means 47 at the standby position of the ascending limit. To this end, the drive shaft 41 is formed in an outer peripheral shape having a substantially constant distance from the axis.

The planting device 31 comprises a planting cylinder 35 which is pierced and moved with respect to the ridges 14 so as to plant the seedlings 28 supplied from the seedling supply device 30 on the ridges 14 at predetermined intervals. A swing link mechanism 53 for vertically moving the cylinder 35 up and down and moving it back and forth is mainly constituted. Swing link mechanism 53
Is provided with a first parallel link 54 whose upper end is pivotally supported by the device frame 38 so that the lower end can freely swing back and forth. A swing plate 55 is pivotally connected to the lower end of the first parallel link 54, The front end of the second parallel link 56 is pivotally connected to the swing plate 55, and the planting cylinder 35 is pivotally connected to the rear end of the second parallel link 56. The distal end of a crank arm 57 provided on a left-right drive shaft 41 provided on the apparatus frame 38 is connected to the upper link 56a of the second parallel link 56.

Therefore, the rotation of the crank arm 57 via the drive shaft 41 by the power from the first PTO shaft 21 causes the first and second parallel links 54 and 56 to move the planting cylinder 35 up and down and back and forth. , And draws a substantially elliptical trajectory.
When piercing 5 into ridge 14, planting cylinder 35 does not move substantially forward with respect to the field.

As shown in FIGS. 1 and 4 to 7, the planting cylinder 35 is a cylinder having an opening having a rectangular shape in a plan view, and a lower part having a mounting pin 59a as a fulcrum. A pair of front and rear openers 58 which can be opened and closed freely by the operator. The opener 58 operates the opening / closing link 59 to move the bending link pin 6.
It can be opened and closed by 0. And opener 58
Forms a planting hole in the ridge 14 when the ridge 14 enters the ridge 14 at the bottom dead center of the locus of the planting cylinder 35, and the opener 58
It is opened back and forth by an interlocking tool 61 pivotally connected to the device frame 38 and the seedling 28 can be planted in the planting hole. The front and rear openers 58 are urged by a tension spring 62 so as to always close when the interlock 61 is not operating. The opening / closing link 59 of the opener 58 is provided with a stopper bolt 63 for limiting the opening of the opener 58.

As shown in FIG. 1, the opening / closing member 61 has a link structure formed to be freely bendable by rotatably connecting longitudinal ends of a plurality of members 142 and 145, and has a front end. The front support shaft 14 in the left-right direction is attached to the device frame 38.
First link member 142 rotatably connected around 1
The front end is rotatably connected to the rear end of the first link member 142 via a left-right connecting shaft 143 and the rear end is rotatably connected to the front opener 58 about the left-right supporting shaft 144 in the left-right direction. And a second link member 145 provided.

First link member 142 and second link member 1
45 is configured to bend via the connecting shaft 143, and when the bend is extended, the second link member 1
A stopper 146 is provided at the tip of the first link member 142 for contacting the stopper 45 and restricting rotation about the connection shaft 143. The second link member 145 is a rod-shaped first elastic body 14.
7 and a cylindrical second elastic member 148 in which the first elastic member 147 is slidably fitted. The second elastic member 148 is slid in the longitudinal direction to allow the second link member (elastic member) 1 to slide.
45 is extendable.

A tension coil spring 150 is attached to the first and second elastic members 147 and 148, and the tension coil spring 150 urges the second link member 145 in a contracting direction. A cutout opening 64 is formed in the upper part on the rear side of the front and rear openers 58 so that an inner scraper 69 of a scraper device 65 described later can enter the inside of the opener 58 from outside. The opening 64 has a lower edge portion formed so as to protrude slightly behind the upper edge portion, and a lower portion than the lower edge has an opener 5.
8 are formed in a mountain-like curve.

A scraper device 65 is provided on the rear side of the planting tube 35. When the planting tube 35 is inserted into the ridge 14 and the seedlings 28 are planted, it is moved upward by the swinging link mechanism 53. The soil attached to the outer and inner wall surfaces of the opener 58 is scraped off. The scraper device 65 includes an operating arm 68 having an upper portion pivotally supported by a support member 66 projecting upward from a rear portion of the device frame 34 via a pin 67 so as to swing back and forth. Inner and outer scrapers 69, 7 which are protruded to the side and are arranged behind the planting cylinder 35.
0, and guide means 71 for scraping the inner and outer scrapers 69, 70. The guide means 71 includes a guided portion 72 provided on the operation arm 68.
And a guide portion 73 fixed to the cylinder above the planting cylinder 35.

The position of the connecting shaft 143 and the second
By appropriately setting the length of the link member 145,
As shown in FIG. 1, the inner scraper 69 is
5, when it comes out downwardly from the opener 58,
The opener 58 of the planting tube 35 is not completely closed but is slightly opened, and the inner scraper 69 is opened by the opener 58 of the planting cylinder 35.
, The opener 58 is fully closed.

In the above configuration, the scraping operation will be described with reference to FIG. 1 and FIGS. The arrow A indicates the traveling direction (transplant direction) of the transplanter 11, and the left side of the drawing indicates the rear side of the transplanter 11. After the soiled seedling 28 taken out of the seedling tray 33 of the seedling supply device 30 by the seedling take-out claw 34 is dropped from above into the planting cylinder 35 moved to the vicinity of the top dead center by the swing link mechanism 53, and then planted. The attachment cylinder 35 is lowered downward by the swing link mechanism 53, and pierces the ridge 14 at the bottom dead center to form a planting hole (see FIG. 4). Then, the opener 58 is opened by the action of the interlocking tool 61, and the seedling 28 is planted in the planting hole.

After the seedlings 28 have been planted, the planting cylinder 35 is raised slightly backward by the swinging link mechanism 53, and the guide portion 73 of the scraper device 65 provided on the planting cylinder 35 is
It engages with a guided portion 72 provided on the operating arm 68 (FIG. 5).
reference). When the planting cylinder 35 further rises, the guided portion 72 rolls or slides on the guide portion 73, and the operating arm 68 swings forward against the tension spring 76 and is pulled, The inner scraper 69 is connected to the opening 64 of the opener 58.
From the inner scraper 69 and the outer scraper 70
6 sandwiches the inner and outer surfaces of the opener 58 (FIG. 6).
reference).

In this state, the inner and outer scrapers 69 and 70 move downward, in such a way as to scrape the soil adhering to the inner and outer surfaces of the opener 58 downward. I have. Therefore, every time one seedling 28 is planted, the attached soil can be removed by the scraper device 65, so that the soild seedling 28 can always be held in an upright posture without falling in the planting cylinder 35.

As shown in FIG. 1, when the inner scraper 69 comes down from the opener 58 of the planting tube 35, the opener 58 of the planting tube 35 is not completely closed but rather opened. After the inner scraper 69 has slipped downward from the opener 58 of the planting cylinder 35, the opener 58 is completely closed. Therefore, when the inner scraper 69 escapes downward from the opener 58 of the planting cylinder 35,
When the front and rear openers 58 are not in contact with each other and the inner scraper 69 comes out of the opener 58, the front and rear openers 58 do not vigorously close due to the urging of the tension spring 62, and at this time a large noise is generated. Disappears.

[0029]

According to the present invention, when the inner scraper 69 escapes downward from the opener 58 of the planting tube 35, the front and rear openers 58 do not vigorously close and generate large noise.

[Brief description of the drawings]

FIG. 1 is a side view showing a state immediately after an inner scraper has slipped downward from an opener according to an embodiment of the present invention.

FIG. 2 is an overall side view of the vegetable transplanter.

FIG. 3 is an overall schematic side view showing a seedling planting apparatus and a multi-film punching apparatus mounted on the apparatus frame.

FIG. 4 is a side view showing the planting cylinder and the scraper means, and shows a state where the planting cylinder holds soil seedlings and pierces a ridge.

FIG. 5 is a side view showing the transplanting cylinder and the scraper means, and shows a state in which the transplanting cylinder is being lifted.

FIG. 6 is a side view showing the planting cylinder and the scraper means, and shows a state where the planting cylinder is raised and the scraper means operates.

FIG. 7 is a side view showing the planting cylinder and the scraper means, and shows a state where the planting cylinder is raised and the scraper means operates.

[Explanation of symbols]

 28 Soiled seedling 35 Planting cylinder 58 Opener 61 Interlocking tool 62 Spring 69 Inner scraper

Claims (2)

[Claims] A planting tube (35) having a pair of openable and closable openers (58) at a lower portion thereof is provided so as to be able to move up and down, and when the planting tube (35) rises, a seedling (35) is placed in the planting tube (35). 28)
Is dropped, and when the planting tube (35) descends, the planting tube (3
5) Opening the pair of openers (58) to plant the seedlings (28), closing the pair of openers (58) and raising the inner scraper (69) during the ascent of the planting cylinder (35). ), The inner scraper (69) is moved downward in the opener (58) with the rise of the planting cylinder (35) and comes out from the lower end thereof, and adheres to the inner surface of the opener (58). An implanting device for an implanting machine which scrapes soil downward, wherein after the inner scraper (69) comes down from the opener (58) of the implanting tube (35), the opener of the implanting tube (35) is removed. Opener (5) so that (58) is fully closed
8) An implanting device for an implanting machine, wherein the closing time is set. 2. A planting cylinder (35) having an openable and closable opener (58) at a lower portion, and a device frame (38) for supporting the planting cylinder (35) so as to be movable up and down. ) Is provided so as to close the device, and between the device frame (38) and the planting cylinder (35),
An interlocking tool (61) for opening and closing the opener (58) against the spring (62) in conjunction with the raising and lowering of the planting tube (35) is provided. ,
An implanting device for an implanting machine provided with an inner scraper (69) that moves downward in an opener (58) and exits from a lower end thereof, wherein the inner scraper (69) is an opener (58) of an implanting cylinder (35). After exiting downward from the opening, the interlocking device (6) is closed so that the opener (58) of the planting tube (35) is completely closed.
An implanting device for an implanting machine, characterized in that 1) is constituted.