JPH0416964Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field]

The present invention relates to a seed tape seeding machine that sends a seed tape into a groove formed by a groove cutting claw and embeds seeds therein.

[Conventional technology]

FIG. 7 shows a conventional manual seed tape seeding machine. This seeding machine has a ruler wheel 2 at the front end of a car frame 1, a pressure wheel 3 at the rear end, a tape roller 4 supported on the middle part, and a pressure wheel 3 and a pressure wheel 3 located behind the ruler wheel 2. A hollow groove-making pawl 5 is vertically provided on the car frame 1 between the car frame 1 and the car frame 1. Then, while holding the handle 6 and moving it by hand, the seed tape 7 from the tape roller 4 is inserted and guided by the groove-making claw 5, and fed into the groove created by the groove-making claw 5, and then covered by the soil cover plate 8. Cover with soil. FIG. 8 shows a conventional tailor towed type, in which the ruler wheel 2 and handle 6 are omitted and the wheel frame 1 is connected to the rear end of the tailor 9 compared to the above-mentioned hand-pushed type. The seed tape 7 is sown and buried in the same manner as described above by towing the seed tape 7 while letting the wheel 11 function as a ruler wheel. Moreover, what was disclosed in Japanese Utility Model Application Publication No. 60-153904 is a feeding wheel that has protrusions spaced apart on its outer circumferential surface and flanges on both sides, and a grooving wheel that excavates a groove in advance of the feeding wheel. The seed tape is fed from the reel between both flanges by using a pawl and rotating the feed wheel with external power, and feeding it into the groove excavated by the groove cutting pawl.

[Problem that the idea aims to solve]

However, in the seeding machines shown in FIGS. 7 and 8, the groove-making claw 5 is located between the ruler wheel 2 and the suppression wheel 3, which is located farther back than the ruler wheel 2. The groove-making claw 5 cannot adapt to the unevenness of the other surface between it and the ring 3. For this reason, when the ground between them is convex as shown in FIG. 9A, the seed tape 7 is buried deeply, and when it is concave as shown in FIG. 9B, the seed tape 7 is not buried but on the ground. It had the disadvantage of floating and being exposed. In addition, in the method disclosed in Japanese Utility Model Application Publication No. 60-153904, a groove is excavated with a groove cutting claw in advance of the feeding wheel, but the feeding wheel cannot smoothly adapt to the unevenness of the ground, so the seed tape is cut at a constant rate. Cannot be buried deep. Moreover, since the spacing between the flanges on both sides of the feed-out wheel is narrow in accordance with the width of the seed tape, the space between them becomes clogged with dirt, making the work difficult. Furthermore, since the feeding wheel is rotationally driven by external power, the feeding speed of the seed tape does not match the speed at which the seed tape advances relative to the ground, resulting in disadvantages such as abnormal feeding and failure to bury the seed tape in time. The purpose of the present invention is to eliminate the various drawbacks of the conventional methods mentioned above, to be able to always create grooves of a constant depth even on finely uneven ground, and to be able to create seed tape at the same time and at the point where the grooves are being created. The object is to be able to feed the material smoothly into the groove and to always bury it at a constant depth.

[Means to solve the problem]

Therefore, the present invention, as illustrated in FIG.
The vertically swinging body 13 at one end of the parallel link mechanism A supports the left and right drum-shaped ruler wheels 17 in parallel, and has a pipe-shaped groove in which the seed tape 31 wound around the tape reel 29 is inserted. Claw 18
is located between the left and right ruler wheels 17 and buried in the vertical swinging body 13 at a position close to its axis, so that the J-shaped lower end 18a of the groove-making claw 18 curves backward and connects the left and right ruler wheels. 17, and the lower end opening 18b of the groove-making claw 18 is directed toward the rear at a position substantially directly below the axis of the left and right ruler wheels 17 and further below the grounding outer circumferential surface. be.

[Effect]

When the left and right ruler wheels 17 move up and down according to the unevenness of the ground due to the action of the parallel link mechanism A, the grooving pawl 18 moves up and down integrally with the left and right ruler wheels 17 at a position close to their axes. . In this case, the J-shaped lower end portion 18a of the groove-making pawl 18 hangs down below the grounding outer circumferential surface of the left and right drum-shaped ruler wheels 17,
Since the lower end opening 18b is not located at a position that is forward and backward from the ground contact outer peripheral surface of the ruler wheel 17, but is located almost directly below the axis of the left and right ruler wheels 17, it always maintains a constant depth even with respect to small irregularities on the ground. excavate a trench.
The groove-making pawl 18 is pipe-shaped and also serves as a guide for inserting the seed tape 31, and its lower end 18a is J-shaped and faces rearward below the outer circumferential surface of the ruler wheel 17. The tape 31 is smoothly fed into the groove at the same time as the groove is formed and at the point where the groove is formed, and is always buried at a constant depth.

【Example】

Hereinafter, one embodiment of the present invention will be described in detail. In FIG. 1, a vertically swinging body 13 with an L-shaped side surface is attached to the lower end of a connecting column 11 that is vertically connected to a tailor or the like by a hitch 10 (FIG. 3 is a plan view thereof) by means of upper and lower links 12. These connecting columns 11, links 12, and vertically swinging bodies 13 constitute a parallel link mechanism A. The vertically oscillating body 13 has a groove-making pawl attachment fitting 14 fixed to the rear side of its vertical portion 13a, and a bearing pipe 15 fixed horizontally to the tip of its horizontal portion 13b. An axle 16 is rotatably inserted through the bearing pipe 15 as shown in FIG.
are detachably attached and screwed in parallel. In addition, the pipe-shaped groove-making pawl 18 is attached to the groove-making pawl mounting bracket 1.
4 is vertically screwed to the vertical portion 13a of the vertically swinging body 13 so as to be detachable and vertically adjustable. The groove-making claw 18 installed in this manner is located between the left and right ruler wheels 17 and slightly in front of the axle 16, and its J-shaped lower end 18a is located below the outer periphery of the ruler wheel 17. The lower end opening 18b is located directly below the axle 16. That is, the J-shaped lower end 18a of the groove-making claw 18 is curved backward and hangs down below the grounding outer peripheral surfaces of the left and right ruler wheels 17, and the lower end opening 18b is aligned with the axis of the left and right ruler wheels 17. It is located almost directly below, further below the ground contact outer peripheral surface, and faces rearward. A soil cover plate mounting bracket 19 is fixed slightly above the J-shaped lower end 18a of the groove cutting claw 18, and a fourth
An arm 21 of the soil covering plate 20 shown in the figure is detachably and rotatably supported. On the other hand, in the middle part of the connecting column 11, a suppression wheel mounting frame 22 is installed horizontally and removably toward the rear by means of a mounting bracket 23 at its front end. At the rear end of this clamping wheel mounting frame 22, a frame 26 of a drum-shaped clamping wheel 25 is supported by a mounting bracket 24 at the rear end in a detachable and vertically adjustable manner. 17 and rolls behind it. Further, at the upper end of the connecting column 11, a reel support arm 27 shown in FIG.
8, it is installed horizontally toward the rear in a detachable manner. At the rear end of the reel support arm 27, a tape reel 29 is rotatably supported by a horizontal shaft 30. The seed tape 31 is supported in a wound state on the tape reel 29 in a detachable manner, and is unwound downward from the tape reel 29, passes through the frame of the suppression ring mounting frame 22, and is further inserted through the slotting claw 18 to be removed from the tape reel 29. It is pulled out from the bottom end. The seed tape sowing machine constructed in this way is installed by a hitch 10 on a Taylor B seed tape sowing machine as shown in FIG.
When the J is connected to the J
A groove is made by the lower end 18a of the letter shape, and the seed tape 31 is continuously drawn into the groove, and the seed tape 31 is continuously drawn into the groove.
0 immediately covered with soil, and then crushed by the crushing wheel 25. The left and right ruler wheels 17 roll while moving up and down according to the unevenness of the ground due to the action of the parallel link mechanism A, and the groove-cutting claws 18 also move up and down accordingly. The lower end 18a of this groove-making claw 18
cuts into the ground by the amount that protrudes from the ground contact outer peripheral surface of the ruler wheel 17, and creates a groove with the corresponding depth.
In this case, since the lower end opening 18b is located directly below the axle 16 of the ruler wheel 17, the groove depth is always determined based on the lowest part of the outer circumferential surface of the ruler wheel 17 (grounding outer circumferential surface). Therefore, it is possible to always create grooves of a constant depth even on finely uneven ground.

[Effect of the idea]

As described above, the seed tape seeding machine of the present invention has the following effects. When the left and right ruler wheels move up and down according to the unevenness of the ground due to the action of the parallel link mechanism, the grooving pawl moves up and down integrally with the left and right ruler wheels at a position close to the axes of the left and right ruler wheels. In this case, the J-shaped lower end of the groove-making pawl hangs down below the grounding outer circumferential surface of the left and right drum-shaped ruler wheels, and the lower end opening is not at a position that is forward and backward away from the grounding outer circumferential surface of the ruler wheel. Since it is located almost directly below the axes of the left and right ruler wheels, it is possible to always dig a groove of a constant depth even on small irregularities in the ground. The cutting groove claw is pipe-shaped and also serves as a guide for inserting the seed tape, and its lower end is J-shaped and points backward below the outer circumferential surface of the ruler wheel. It is smoothly fed into the groove at the same time as the groove is created and is always buried at a constant depth. Therefore, there is no longer a problem of the seed tape being buried at an uneven depth or rising to the surface of the ground and being exposed. It has a simple structure in which the left and right drum-shaped ruler wheels are pivotally supported by a parallel link mechanism, and a pipe-shaped groove claw that also serves as a guide for the seed tape is embedded between these ruler wheels, so it can be provided at low cost. Furthermore, unlike conventional methods, there are no problems such as soil clogging in the tape feeding section or the speed at which the tape feeds out does not match the speed relative to the ground.

[Brief explanation of the drawing]

Fig. 1 is a side view of an embodiment of the present invention, Fig. 2 is a plan view thereof, Fig. 3 is a plan view of the hitch, Fig. 4 is a plan view of the covering plate, and Fig. 5 is a tape roller and its arm. 6 is a plan view of the device, and FIG. 6 is a side view of the device in use. Also, Fig. 7 is a side view of a conventional hand-push type seed tape seeding machine, Fig. 8 is a side view of a conventional Taylor traction type seed tape seeding machine, and Fig. 9 A and B are the seed tape seeding machine of Fig. 7. It is an explanatory diagram of the seeding operation by. A... Parallel link mechanism, 13... Vertical swinging body,
16... Axle, 17... Ruler wheel, 18... Groove-making claw, 18a... Lower end of groove-making claw, 18b... Lower end opening of groove-making claw, 29... Tape reel, 31...
Seed tape.

Claims (1)

[Scope of utility model registration request] On the vertical swinging body 13 at one end of the parallel link mechanism A,
A pipe-shaped groove claw 1 supports the drum-shaped left and right ruler wheels 17 in parallel and allows the seed tape 31 wound around the tape reel 29 to be inserted therethrough.
8 is positioned between the left and right ruler wheels 17 and vertically attached to the vertical swinging body 13 at a position close to its axis, and the J-shaped lower end 18a of the groove-making pawl 18 curves backward while forming the left and right ruler wheels 17. The lower end opening 18b of the groove-making claw 18 hangs downward from the grounding outer peripheral surface of the ruler wheel 17.
A seed tape sowing machine characterized in that the seed tape sowing machine is arranged to face rearward at a position substantially directly below the axis of the left and right ruler wheels 17 and further below the ground contact outer peripheral surface thereof.