JPH06141632A - Transplanting claw of vegetable transplanter - Google Patents

Abstract

PURPOSE:To provide the subject claw so designed as not to develop difference between transplanting hole position and transplanting position for transplanting seedlings in a vegetable transplanter following laying a mulching film on ridges. CONSTITUTION:The outer periphery of a middle part of a transplanting claw is provided with a heater H for opening transplanting holes, and with the claw bodies 1a, 1b of the transplanting claw as double structure, a water supply section 2 is equipped in between them, or, the inside of the claw bodies is fitted with a watering pipe and the inside of the claw is served as receiving section for seedlings.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a construction of a transplanting nail having a transplant hole opening function in a self-propelled vegetable transplanting machine.

[0002]

2. Description of the Related Art Conventionally, in a vegetable transplanter, as an opening device for punching a transplant hole in a mulch film laid on a field before transplanting seedlings, a device for burning the film by electric heat or a cutter is used. It is well-known that the film is cut to make a hole by rotating it, etc., but it is placed in front of the transplanted nail and is configured separately from the transplanted nail. It is installed as possible.

[0003]

The conventional implant hole opening device is arranged immediately in front of the implant nail to perform the hole opening work in synchronization with the raising and lowering of the implant nail. Since the configuration is different from the above, it is not possible to solve the problem that the position of the transplant hole causes an error from the descending position of the transplant nail due to slipping of the traveling wheel or unevenness in the field scene. Further, since the raising / lowering mechanism of the transplant hole opening device must be provided separately from the transplant nail, the assembly structure is complicated, the number of parts is increased, and the cost is increased. From the above points, it is desirable to construct a graft nail that can perform mulch film perforation simultaneously with transplantation.

However, in the case where the transplanted nail is provided with a hole opening mechanism, if a heater type such as electric heat is used, heat is transferred to the transplanted nail, and the seedlings inside the nail are damaged. In addition, attaching a cutting type to the transplant nail such as rotating the cutter makes the structure too complicated.

[0005]

The present invention uses the following method in order to solve the above problems. That is, in a vegetable transplanter that supplies seedlings into the transplanted nail while running and is transplanted on the field, a heater for opening a transplantation hole is provided on the middle and outer circumference of the transplanted nail, and the heater is placed inside the transplanted nail. The water supply section is arranged between the seedling receiving section and the seedling receiving section to form a transplanting hole opening / transplanting nail of the vegetable transplanting machine.

[0006]

The operation of the present invention constructed as above will be described. When the transplanted nail is lowered onto the ridge, a hole for transplantation is opened in the multi-film laid on the ridge by a heater for opening multiple holes attached to the outside of the transplanted nail, and at the same time, the seedling in the transplanted nail is It is to be transplanted into the hole.

While the pot seedling is inside the transplant nail, the heat of the heater for opening the transplant hole is cooled by the water supply portion provided between the transplant nail and the receiving portion, and the seedling is damaged by the heat of the heater. To prevent this.

[0008]

The problems and configurations to be solved by the present invention are as described above, and the embodiments of the present invention shown in the accompanying drawings will be described below. FIG. 1 is an overall side view of a vegetable transplanter equipped with a transplant nail B of the present invention, FIG. 2 is a side sectional view showing a configuration of a transplant nail A provided with a water supply section, and FIG. 3 is a transplant using a receiving section as an irrigation pipe. FIG. 4 is a side cross-sectional view showing the structure of the nail B, FIG. 4 is a side view showing an elevating mechanism of the transplanted nail B, and FIG. 5 is a plan view of the same.

The overall structure of the vegetable transplanter of the present invention will be described with reference to FIG. The engine E is arranged in the base frame 28, and the output shaft of the engine E is connected via a belt,
A generator 29, which serves as a power source for the transplantation hole opening heater H, is provided in the front portion. A fuel tank GT and a muffler 30 are arranged above the engine E and covered with a bonnet 31. The bonnet 31 is provided with a preliminary seedling stand 32 on its side part, and on the upper part, a water supply part of a transplanted nail B (A) described later or a water supply tank T for supplying water to an irrigation pipe is mounted. ing.

A mission case M is disposed at the rear of the base frame 28, and a left and right swing case 33 is supported by the mission case M so as to be vertically swingable, and the swing case 33 is a drive wheel for traveling. The rear wheel RW is supported. A swing arm 35 is vertically swingably supported by a bumper 34 at the front part of the base frame 28, and a front wheel FW is supported at the rear end of the swing arm 35. Then, below the base frame 28,
Prior to transplantation, a crushing roller 36 for crushing the upper surface of the ridge U and the mulch film laid on the ridge is provided. The compression roller 36 is made of resin, is located at the front end position of the machine body, and compresses the ridge surface by its own weight without applying a biasing force by a spring or the like. This prevents the crushing roller 36 from excessively indenting the ridges and the mulch film. In addition, since it also has the effect of splashing water droplets on the film to the side, it prevents the situation where the temperature of the multi-hole opening heater H drops and the film opening becomes insufficient due to the attachment of water droplets after rainy weather. It also has a function to do.

A transplant transmission case 8 is connected to the rear end of the transmission case M, and the transplant pawl B (A) for opening a transplant hole according to the present invention is provided at the rear end of the transplant transmission case 8. ) Is arranged, and a transplantation guide frame 37 having a U-shape in a plan view shown in FIG. 5 is arranged below the rear surface of the transplantation guide frame 37.
It is configured so that the transplanted nail B (A) swings up and down as the soil roller 38 swings in accordance with the unevenness of the ridge surface. Furthermore, transplanted nail B
A chassis frame 39 is provided in the rear of (A), and one chassis of the seedling mounting table 40 that reciprocates left and right on the chassis frame 39 and a seedling raising tray 41 on the seedling mounting table 40. A seedling supply section C including a seedling take-out nail 42 for taking out pot seedlings is configured.

Further, at the rear end of the chassis frame 39,
Steering handles 43 are arranged in series, and the steering handles 4
3, a transplantation clutch lever 44, left and right side clutch levers 45, and the like are arranged. Below the steering handle 43, a steering speed change lever 46, a stock adjustment lever 47, a planting depth adjustment lever 48, Further, the cultivation soil adjusting lever 49 is provided and constitutes the operation portion D.

Next, referring to FIGS. 2 and 3, the structure of the transplantation hole opening / transplantation nail according to the present invention will be described. First, explaining from the transplanted nail A of FIG. 2, the semi-conical nail bodies 1a and 1b which are pivoted back and forth and pivotally connected so as to be opened are made into a double structure, and the inner plate is provided with a seedling receiving portion 1c. The water supply unit 2 is configured between the receiving unit 1c and the outer claws 1a and 1b. The heaters H, H for opening transplantation holes are arranged on the outer circumference of the claws 1a, 1b having such a configuration. The transplant hole opening heater H has a heating wire embedded therein which generates heat due to the electromotive force of the generator 29. And the nail body 1a
A water supply port 2a is provided in each water supply part 2 of 1b, communicates with a water supply pipe 3, and water supplied from the water supply tank T is fed into the water supply part 2 for transplantation at the time of transplantation. When the pot seedling is held in the transplanted nail A configured as described above, the heat of the multi-hole opening heater H on the outside of the nail bodies 1a and 1b is cooled by the water supply unit 2 and the seedling heater heats. Since the seedlings are not directly transmitted, the seedlings are not damaged.

Next, the structure of the transplanted nail B of FIG. 3 will be described. The transplanted nail B has heaters H, H for opening a transplantation hole, which have the same structure as that of the transplanted nail A, on the outer circumference of the middle abdomen of the nail bodies 4a, 4b.
The upper irrigation pipes 5 and 5 are fixed to the upper portions of the nails 4a and 4b with fixing members 6.6, and the irrigation water is received from the upper irrigation pipes 5 and 5 as a seedling receiving portion. Tube 7/7/7 ...
Are arranged toward the bottom of the claw bodies 4a and 4b. Irrigation pipe 7
The tip of 7 ... serves as a watering nozzle 7a. Then, water is supplied from the water supply tank into the irrigation pipe 7.
When seedlings are fed to the transplanted nails B having such a configuration, the pot seedlings are held by the irrigation pipes 7, 7, ... Inside the nail bodies 4a, 4b, and thus transmitted to the nail bodies 4a, 4b. The heat of the transplant hole opening heater H is prevented from being heated by the water in the irrigation pipe 7 to heat the seedlings.

The structure of the transplant nails A / B for opening the transplant holes is as described above. Next, the elevating mechanism of these transplant nails will be described with reference to FIGS. 4 and 5. In this example, the nail B to be transplanted is
The structure of the lifting mechanism is as shown in FIG.
Is also the same. The transplantation driven shaft 10 of the transplantation transmission case 9 connected to the mission case M is a driven shaft for the transplantation drive shaft 8 of the mission case M, and a rotary provided continuously above the rear portion of the transplantation transmission case 9. It serves as an input shaft of the case 11, and the drive of the transplantation driven shaft 10 is gear-transmitted in the rotary case 11 to drive the rotating shaft of the crank arm 12. The crank arm 12 supports a transplant arm 13, and the transplant arm 13 supports the transplant nail B via a nail support 14 and an advance / retreat rod 15. A guide roller 16 is provided at the upper end of the transplant arm 13 and is fitted in a guide groove 17a of a rail 17 described below so as to be vertically movable. Thus, the rotation of the crank arm 12 causes the guide roller 16 to move up and down in the guide groove 17a,
The transplantation arm 13 is configured to move up and down while being swung back and forth, so that the transplantation nail B moves up and down along an oval transplantation locus. On the other hand, the transplanted nail B is composed of half-conical nail bodies 4a and 4b divided into two parts, and the forward / backward movement is performed by the action of the transplantation cam 19 on the proximal arm shaft 18 of the crank arm 12. It is configured to open and close as the rod 15 slides. Then, the opening / closing timing of the nail body is adjusted during the raising / lowering movement of the transplanted nail, the pot seedling for one strain is taken from the seedling take-out nail 42 at the most raised position of the transplanted nail, and descends to the most lowered position. When it reaches, the heaters H, H for opening transplant holes on the outside of the nail body press against the multi-film stretched on the ridges, the multi-film is incinerated to form the holes, and then the nail bodies 4a, 4b are Open
The pot seedlings are configured to be transplanted onto the ridges in the transplantation holes, and further, in the transplanted nail B, when the nail body is opened, irrigation is performed from the irrigation nozzles 7a, 7a ,. Is.

As shown in FIG. 5, the rail 17 is
Is fixed to a transplant nail raising / lowering guide plate 20 by a bolt 21, and the transplant guide plate 20 is attached to a floating fulcrum shaft 22 provided on substantially the same axis as the transplant drive shaft 8 of the mission case M. It is supported so that it can swing up and down. Further, the transplantation guide frame 37 is attached to the transplantation transmission case 9 and the transplantation nail lifting guide plate 20 by the bolts 23.
・ It is fixed at 23.

Finally, the irrigation mechanism of the transplanted nail B will be described. An irrigation pump P is disposed above the transplantation driven shaft 10 in the transplantation transmission case 9 from the water supply tank T via a water distribution pipe 24, and a irrigation cam 25 is attached to the transplantation driven shaft 10. It is fixed. The irrigation cam 25 rotates together with the rotation of the transplantation driven shaft 10, and when pressed against the piston rod 26 of the irrigation pump P, the piston rod 26 is pushed into the pump to operate the irrigation pump. Water is supplied from the water distribution pipe 27 to the upper irrigation pipe 5 and the irrigation pipe 7, and irrigation is performed from the irrigation nozzle 7a. The pump operation timing is as described above.
The timing is adjusted when the transplanting nail B is opened and the seedling is transplanted, and the timing adjustment is performed by adjusting the mounting angle of the irrigation cam 25 or the mounting angle of the irrigation pump P. Instead of the irrigation pump P, a switching valve may be provided, and the valve may be switched by pressing the irrigation cam 25 to open the valve.

[0018]

The present invention has the following effects by being configured as described above. That is, the heater for opening the transplant hole is arranged outside the transplant nail, but the heat supplied to the nail body of the transplant nail is cooled by the water supply part in the transplant nail, and the heater heat is prevented from being transmitted to the seedling. Therefore, it is possible to open the transplant hole and transplant the seedling at the same time with one transplant nail while preventing damage to the seedling in the transplant nail. Compared to a vegetable transplanter equipped with an opening device, there is no misalignment between the multi-hole and the transplantation position, and no holding member for the transplanting hole opening device is required, so the structure is simple and the number of parts is reduced. Therefore, the cost can be reduced. Further, in the structure in which the irrigation pipe is provided in the transplant nail, irrigation work can be performed simultaneously with the transplant.

[Brief description of drawings]

FIG. 1 is an overall side view of a vegetable transplanter equipped with a transplant nail B of the present invention.

FIG. 2 is a side sectional view showing the structure of a transplant nail A provided with a water supply unit.

FIG. 3 is a side sectional view showing a configuration of a transplant nail B having an irrigation pipe as a receiving portion.

FIG. 4 is a side view showing an elevating mechanism of a transplant nail B.

FIG. 5 is a plan view of the same.

[Explanation of symbols]

 A / B Implant nail H Implant heater 1a ・ 1b, 4a ・ 4b Claw body 2 Water supply part 3 Water supply pipe 7 Irrigation pipe 7a Irrigation nozzle

Claims (1)

[Claims] 1. In a vegetable transplanter for feeding seedlings into a transplanted nail while running and transplanting it onto a field, a heater for opening a transplantation hole is provided on the middle and outer circumference of the transplanted nail, and A transplant nail for a vegetable transplanter, which is characterized in that a water supply section is arranged between the seedling receiving section arranged inside.