JP2585521Y2 - Multi-film perforator for vegetable 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 construction of a hole opening device in a vegetable transplanter for opening a planting hole for seedlings in a multi-film laid on a ridge.

[0002]

2. Description of the Related Art Conventionally, a planting hole for planting seedlings on a multi-film laid in a field is opened by a hole opening device.
A technique related to a vegetable transplanting machine for planting a pot seedling of one strain taken out from a seedling tray of a seedling mounting table in a planting hole with a seedling take-out claw with a planting claw having an openable / closable nail body has become publicly known. In this hole opening device, the heating element is formed in a circular shape, and is pressed against a predetermined portion of the multi-film to dissolve in a circular shape before the planting, so that the planting hole is opened.

[0003]

In the prior art, the heating element was driven up and down by rotation of a camshaft, but the heating element was moved down by a parallel link contacting the cam. The falling speed is not fast because it falls while abutting. However, when the falling speed of the heating element is low, the pressing time on the multi-film is short, and when the pressing force is low, burning off of the film may be insufficient. In order to completely burn off the film, it is desirable that the heating element be instantaneously lowered and pressed with a strong force.

[0004] Further, the shape of the pressing surface of the heating element is conventionally circular, but the vegetable transplanter itself is also advanced when pressing the multi-film, so that the planting holes are inevitably formed in the front-back direction. It tended to be long, that is, a long elliptical shape before and after, and it became a hole larger than a desired hole, so that weeds were easy to grow.

[0005]

Means for Solving the Problems The present invention has the following structure in order to solve the above problems. That is, at the position in front of the planting section, a hole opening device for pressing the heating element against the multi-film laid in the field to open the planting hole is provided, and the heating element is moved up and down in synchronization with the driving of the planting section. In the vegetable transplanter configured as described above, the pressing surface of the heating element has an elliptical shape that is long in the left-right direction of the machine.

[0006]

In the multi-film hole opening apparatus, when the parallel link D and the heating element E are lowered, the parallel link D is forcibly lowered by the spring 10 for urging the parallel link D downward, and the lowering speed is high. Since the pressing force of the pressing member 13 of the body E against the multi-film is also strong, the multi-film is reliably burned off, and the film residue is also burned to reduce the adhesion. Furthermore, since the pressing surface of the heating element E has an elliptical shape that is long in the left-right direction, conventionally, the shape of the planting hole on the multi-film constituted by the pressing member 13 is changed by the advance of the machine during the hole opening operation. What was longer in the front-back direction of the hole is corrected to just a circular shape.

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. FIG. 1 is an overall side view of a vegetable transplanter using the present invention, FIG. 2 is a partial side view of a hole opening A, FIG. 3 is a partial side view of the heating element E when it is lowered, and FIG. 5 is a partial side view when the brush is raised, and FIG.
FIG. 6 is an outer side view of the heating element E, FIG. 7 is an inner side view thereof, FIG. 8 is a front view thereof, FIG. 9 is a front view of the same when the pressing surface has a weight shape, and FIG. 11 is a plan view of the pressing tool 13, FIG. 12 is a rear perspective view showing the arrangement of the spare seedling table on the bonnet 25, and FIG. 13 shows the configuration of the pressure-reducing roller 31 and the slope-reducing roller 52 attached to the front of the bumper. FIG. 14 is a partial front view, and FIG. 15 is an overall side view.

The overall structure of the vegetable transplanter of the present invention will be described with reference to FIG. An engine ENG is disposed in the base frame 23, and the belt 4 is connected to an output shaft of the engine ENG.
6, the heating element E of the multi-film hole opening apparatus described later
A power generator 45, which is a power source of the power supply, is disposed at the front. A fuel tank T and a muffler 24 are disposed above the engine ENG, and are covered with a hood 25. As shown in FIG. 12, the bonnet 25 is provided with side spare seedling mounting stands 26 on both sides, and a central spare seedling mounting stand 27 is also provided upright. The central spare seedling mounting table 27 is composed of a vertical frame 27a in the front-rear direction and a horizontal frame 27b in the left-right direction of the fuselage. The front end of the vertical frame 27a is near the center of the hood 25, and the rear end is the rear end of the hood. The seedling raising tray 28 can be placed both vertically and horizontally, and has a function of increasing the strength of the bonnet 25.

At the rear of the base frame 23, a transmission case M is provided. A left and right swing case 29 is supported on the transmission case M so as to be able to swing up and down. A rear wheel RW, which is a wheel, is supported. A swing arm 30 is supported at the front of the base frame 23 by a bumper 47 so as to be vertically swingable, and a front wheel FW is provided at the rear end of the swing arm 30.
Is supported. Then, a pressure-reducing roller 31 for relieving the upper surface of the ridge U is provided below the base frame 23. The pressure-reducing roller 31 is made of resin, is located at the front end position of the fuselage, that is, at the front of the hole opening A, and does not apply a downward urging force by a spring or the like and has its own weight. Suppress the ridge U upper surface with. As a result, the upper surface of the multi-film 22 described later applied to the ridge U becomes flat, and the pressing surface of the hole opening A becomes accurate. The reason why the pressure is reduced by its own weight is that when an urging force is applied, the ridge and the upper surface of the multi-film are dented. Also,
If water droplets due to rain, dew, or the like adhere to the multi-film, the temperature will be low and the burning will not be sufficient, and the planting hole cannot be formed even if the heating element E is pressed against the film as it is. Although there is a possibility, the crushing roller 31
In this case, the water droplets are repelled to the side to remove the water droplets, and the drilling and planting work can be performed even after rainy weather.

An embodiment in which the slope of the ridge is also pressed down by a roller will be described with reference to FIGS. The stays 48 are fixedly provided on both sides of the front part of the bumper 47. The stay 48 has a slope-reducing roller supporting portion 48a protruding therefrom, and a long hole 48b and an arm fitting hole 48c. Then, the slope repressing roller support 48
a and the support plate 49 are brought into close contact with each other, and are fixed by bolts 50 through the elongated holes 48b. Then, the roller arm 51 is inserted into the arm insertion hole 48c, and the side surface pressure reduction roller 52 is supported. The slope repressing roller 52 is adapted to follow the slope of the ridge, and by adjusting the fixing position of the bolt 50 in the long hole 48b according to the angle of the slope,
The angle of the roller arm 51 and the slope crushing roller 52 can be adjusted. The slope repressing roller 52 is
It is to suppress the slope of the ridge, especially when the multi-film is stretched on the ridge, because the edge of the multi-film is crushed, the multi-film surface on the ridge upper surface can be more beautifully flattened, Drilling and planting operations are further ensured. Further, the slope repressing roller 52 is
Since the ridges are sandwiched from both sides, there is an action of guiding the airframe so that the airframe follows the ridges and proceeds. Further, as shown in FIG. 15, a slope-reducing roller 52 is disposed on the ridge slope at the forefront, and the front wheel FW and the rear wheel R are successively provided on the ridge.
Since the W is disposed, the direction guidance of the body on the ridge is extremely improved. In this embodiment, the pressure-reducing roller 31 is provided between the stays 48.
Further, a front weight 53 is fixedly provided at the upper front of the stays 48.

At the rear end of the transmission case M, a planting transmission case 1 is pivotally supported. At the rear end of the planting transmission case 1, a perforated portion A of the multi-film perforation device according to the present invention is provided. And a planting section B for pot seedlings. In this manner, the hole opening A is disposed immediately before the planting portion B, and the planting claw 32 of the planting portion B is positioned on the ridge opened by the hole opening A. The seedlings are planted in the planting holes of the multi-film. Further, a gauge wheel 34 is supported from a side surface of the planting transmission case 1 via a gauge wheel frame 33, and the gauge wheel 34 is adjusted according to the unevenness of the ridge surface.
Swings, the planting transmission case 1, the hole opening A, and the planting portion B swing up and down. Further, a chassis frame 35 is provided behind the planting portion B. One plant is provided on the chassis frame 35 from a seedling table 36 that reciprocates left and right and a seedling tray 28 on the seedling table 36. A seedling supply section C is configured to include a seedling removal claw 37 for taking out pot seedlings per minute.

Further, a steering handle 38 is connected to the rear end of the chassis frame 35, and a planting clutch lever 39, left and right side clutch levers 40 and the like are disposed on the steering handle 38. The steering handle 3
8, a traveling shift lever 41 and an inter-stock shift lever 4 are provided.
2, and a planting depth adjusting lever 43 is provided.

Next, the configuration of the hole opening A according to the present invention will be described with reference to FIGS. The planting transmission case 1
A planting drive shaft 2 is mounted horizontally. The planting drive shaft 2 is
It serves as a drive shaft for raising and lowering the planting claws 32 in the planting portion C, and as a driving shaft for rotating the heating element E and the cleaning tool F in the hole opening A. The large cam 3 and the small cam 4 that rotate about the planting drive shaft 2 are fixed to the planting drive shaft 2. Further, in the vicinity of the planting drive shaft 2, a link support plate 5 is fixed to the planting transmission case 1, and pivot shafts 5a, 5b, and 5c are provided. And
One ends of an upper link 6 and a lower link 8 are pivotally supported on the pivot shafts 5a and 5b, respectively, and the other ends of the upper link 6 and the lower link 8 are
It is connected to the support rod 9 to form a parallel link D. And
The upper link 6 pivotally supports a large cam contact roller 7 so as to contact the side of the large cam 3, and the contact position of the large cam contact roller 7 with the rotation of the large cam 3. Is changed and goes up and down, so that the upper link 6 and the lower link 8
・ The parallel link D consisting of the support rod 9 is moved from the H1 position to the L1 position.
It rotates up and down to the position. Further, a spring 10 is locked to the link support plate 5 from the end of the upper link 6 on the side of the support rod 9 to urge the entire parallel link D downward.

A heating element E is fixed to the lower end of the support rod 9. The configuration of the heating element E will be described with reference to FIGS. The left and right two glow plugs 12.
2 is supported and fixed, and the lower end is inserted into the pressing tool 13. The glow plug 12 heats the pressing tool 13,
The heated presser 13 presses the multi-film 22 to burn off the film and form a planting hole. And, two bolt fitting members 14
Is disposed between the support plate 11 and the pressing tool 13, and the bolts 15 are fitted and fixed to the bolt fitting member 14.
The bolt 15 and the bolt insertion member 14 have a function as a heat insulating member for preventing the temperature of the presser 13 to be heated from being transmitted from the support plate 11 to the support rod 8.

The pressing member 13 has an elliptical shape that is long in the horizontal direction as shown in FIGS. 10 and 11 in plan view. This is because, in the multi-film hole opening and planting operation, the airframe advances while the pressing tool 13 is pressed onto the multi-film, and as a result, the shape of the planting hole formed by the pressing tool 13 is increased. In anticipation of stretching back and forth,
By shortening the front-rear direction, the planting hole is made circular as a result. The configuration of the planting hole in the multi-film includes a method of cutting off a portion pressed by the pressing tool 13 from another portion, and a method of cutting the planting hole from the central portion of the planting hole position by the pressing tool 13. A method is conceivable in which holes are formed by melting the film in a circular shape to the edge of the position. In the latter case, the edge of the planting hole thus formed is not necessarily clean, but since the film is not cut off, there is no possibility that the burnt residue of the film adheres to the lower surface of the pressing tool 13. As shown in FIG. 9, the lower surface of the pressing tool 13 may be formed as a weight having a central portion as an apex so as to be suitable for forming a planting hole by this method.

The heating element E constructed as described above is fixed below the support rod 9 of the parallel link D. The support rod 9 has a locking hole for fixing the support plate 11 with bolts. 2 and 5, the heating element E can be fixed to the supporting rod 9 by adjusting the height of the heating element E, as shown in FIGS.

Next, the structure of the cleaning tool F will be described.
The cleaning tool link 16 is pivotally supported on the pivot shaft 5c of the link support plate 5. A small cam contact roller 17 is pivotally supported at the end of the cleaning tool link 16 so as to press against the rotating small cam 4. An arm support 18 is vertically provided below the cleaning tool link 16, and a cleaning tool arm 19 having a cleaning brush 20 at a distal end thereof is screwed and fixed to the arm support 18. A plurality of locking holes 18a are formed in the arm support portion 18. The fixing position of the cleaning tool arm 19 with respect to the arm support portion 18 is adjusted as shown in FIGS. It can be adjusted. A spring 21 is wound around the pivot shaft 5c to urge the cleaning tool link 16 upward. In a normal state, the small cam contact roller 17 is attached to the planting transmission shaft 2. It is in H2 position in contact. The cleaning tool F is configured as described above.

As described above, the multi-film hole opening apparatus A
Is rotated by the rotation of the large cam 3 attached to the planted transmission shaft 2, and is rotated by the parallel link D having the heating element E and the small cam 4 also attached to the planted transmission shaft 2. The cleaning tool F that rotates vertically is driven. Here, the heating element E and the cleaning tool F accompanying the rotation of the large cam 3 and the small cam 4 are shown.
2 to 4 will be described. First, while the large cam contact roller 9 is in contact with the largest radius portion of the large cam 3, the parallel link D and the heating element E are at the upper position H1 as shown in FIG. The planting transmission shaft 2 rotates clockwise as shown by the arrow in FIG. 2, and from the state shown in FIG. 2, the large cam contact roller 7 of the upper link 6 will soon be replaced with the minimum radius portion of the large cam 3 as shown in FIG. 3a, and falls down.
At the same time, the parallel link D and the heating element E descend at a stroke to the lower position L1, and the pressing member 13 of the heating element E comes into contact with the multi-film 22 and presses the film to form a planting hole. It is.

The parallel link D and the heating element E
Is forcibly lowered by the biasing force of the spring 10 locked to the link support plate 5 from the upper link 6. That is, the descending speed is fast, and the pressing force of the pressing tool 13 against the multi-film is also sharp and strong. As a result, the cutting of the multi-film by the pressing tool 13 is sharpened, and the pressing surface is in close contact, and the lowering speed is faster, and the pressing time is longer, so that the planting hole is reliably and beautifully configured. At the same time, the burnt-off film residue is also reliably burned, and the adhesion of the residue is reduced.

In this way, the heating element E is used as the multi-film 22
The large cam 3 rotates while the planting hole is formed, and the large cam contact roller 7 comes into contact with the largest radius portion of the large cam 3 soon. As shown in FIG. After reaching the ascending position H1, the small cam 4 rotating with the rotation of the large cam 3
Abuts against the small cam contact roller 17 at the upper position H2,
The small cam contact roller 17 is lowered to the lower position L2. As a result, the cleaning tool arm 19 and the brush 20 rotate upward, and the pressing tool 1 of the heating element E at the upper position H1.
3 is in contact with the lower surface. Further, the small cam 4 rotates, and the small cam contact roller 17 is disengaged from the small cam 4 and is again in the upper position H.
When the brush 20 is turned, the brush 20 turns again downward. At this time, the brush 20 rubs the lower surface of the pressing member 13 to remove the film residue attached to the position. Thus, the heating element E repeatedly moves up and down, and the cleaning tool F
The operation of cleaning the pressing surface of the heat generating element E every time it is raised and lowered is repeated to form the planting holes on the multi-film.

Incidentally, in the transplanting operation by the vegetable transplanter, the heating element E may not be required because the multi-film is not laid. In addition, even when the multi-film hole opening operation is performed, the film is sufficiently burnt off. In some cases, the cleaning tool F is unnecessary. In such a case, it is troublesome to disassemble the hole opening A one by one and remove the parallel link D, the heating element E, or the cleaning tool F, and when necessary, it is necessary to attach them again. . Therefore, the parallel link D is fixed to the upper position H1 so that the parallel link D is not moved up and down by the rotation of the large cam 3, so that the parallel link fixing hole 5d is formed in the link support plate 5.
Also, a fixing hole 8a is formed in the lower link so that both holes can be aligned and pinned. Further, a cleaning tool fixing hole 5e is formed in the link support plate 5 so as to fix the cleaning tool F at a lower position L2 unrelated to the rotation of the small cam 4.
A fixing hole 16a is formed in the cleaning tool link 16 so that both holes can be aligned and pinned. As described above, when the heating element E and the cleaning tool F are not required, the work can be started simply by fixing the position without performing the attaching and detaching work.

[0022]

[Effects of the Invention] The present invention is constructed as described above and has the following effects. That is, since the multi-film hole opening device is configured as described in the claims, the configuration of the planting holes on the multi-film is reliable, the shape of the holes is circular, and the edge is beautiful. It is something that can be done.

[Brief description of the drawings]

FIG. 1 is an overall side view of a vegetable transplanter using the present invention.

FIG. 2 is a partial side view of a hole opening A;

FIG. 3 is a partial side view when the heating element E is lowered.

FIG. 4 is a partial side view of the cleaning tool F when the brush is raised.

FIG. 5 is a partial front assembly view of the same.

FIG. 6 is an outer side view of the heating element E.

FIG. 7 is an inside side view of the same.

FIG. 8 is a front view of the same.

FIG. 9 is a front view of the case where the pressing surface has a weight shape.

FIG. 10 is a plan view of the same.

11 is a plan view of the pressing tool 13. FIG.

FIG. 12 is a rear perspective view showing the arrangement of the spare seedling mounting table on the bonnet 25.

FIG. 13 shows a pressure reducing roller 31 attached to the front of a bumper.
FIG. 4 is a partial side view showing a configuration of a slope crushing roller 52.

FIG. 14 is a partial front view of the same.

FIG. 15 is an overall side view of the same.

[Explanation of symbols]

 Reference Signs List A Hole opening D Parallel link E Heating element F Cleaning tool 1 Planting conduction case 2 Planting conduction shaft 3 Large cam 4 Small cam 5 Link support plate 6 Upper link 7 Large cam contact roller 8 Lower link 9 Supporting rod 10 Spring DESCRIPTION OF SYMBOLS 11 Support plate 12 Glow plug 13 Pressing tool

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masatoshi Hinasa 1-32 Chaya-cho, Kita-ku, Osaka, Osaka Inside Yanmar Agricultural Machinery Co., Ltd. (72) Masahiro Kanezaki 1-32, Chaya-cho, Kita-ku, Osaka, Osaka No. Yanmar Agricultural Machinery Co., Ltd. (72) Inventor Yoshiaki Kuraya 1-32 Chaya-cho, Kita-ku, Osaka-shi, Osaka Yanmar Agricultural Machinery Co., Ltd. (56) References JP-A-1-309611 (JP, A) Hei 4-12811 (JP, U) Japanese Utility Model 64-22248 (JP, U) Japanese Utility Model Hei 4-110414 (JP, U) Japanese Utility Model 49-12022 (JP, Y1) Utility model registration 2509849 (JP, Y2) (58) Fields investigated (Int. Cl. ⁶ , DB name) A01C 11/02 301 A01G 13/00 302

Claims (1)

(57) [Scope of request for utility model registration] 1. A hole opening device for opening a planting hole by pressing a heating element on a multi-film laid in a field at a position in front of a planting section, and synchronizing the heating element with driving of the planting section. In a vegetable transplanter configured to be driven up and down, a pressing surface of the heating element is formed in an elliptical shape that is long in a lateral direction of the machine.