JP2564103Y2 - Drilling tool for nursery with thermal insulation sheet - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drilling tool for drilling a seedbed having a heat insulating sheet for sowing or planting.

[0002]

2. Description of the Related Art In order to keep warm, when seeding or planting seedlings on a nursery bed covered with a vinyl sheet,
At the sowing or planting part, holes must be made in the vinyl sheet. Conventionally, a drilling tool as shown in FIGS. 4 and 5 has been used for this drilling. In this conventional drilling tool, a handle 2 is fixed to an upper end of a pair of rod-shaped frames 1, and a drilling cylinder 3 is fixed to a lower end of the frame 1. The perforated cylinder 3 has a substantially cylindrical shape with the vertical direction as the axial direction, and the lower end portions of both frames 1 are fixed to both sides of the upper end portion of the outer peripheral surface. The drilling cylinder 3 has a tapered shape whose diameter gradually decreases slightly downward. The lower end of the perforated cylinder 3 is a cutting blade 4 having an uneven shape and a lower end sharpened downward. Then, at the time of punching, the operator holds the handle 2 with both hands, puts the punching cylinder 3 at a predetermined position on the vinyl sheet 6, and pushes down the entire punching tool. Thereby, as shown in FIG. 5, the perforated cylinder 3 cuts into the soil 7 and the vinyl sheet 6 is cut out in a circular shape.

However, when a hole is made in a nursery bed covered with a heat insulating sheet such as a vinyl sheet 6 using the above-described conventional hole-making tool, the sheet piece 6a cut out in a circular shape after the hole-making is particularly suitable for the hole-making device. It is not held and usually left as it is near the nursery. However, if the cut sheet pieces 6a are scattered in or around the soil 7, there is a problem that they cause pollution as industrial waste. On the other hand, if you try to prevent this,
6a had to be manually raked one by one, which was very troublesome.

On the other hand, for example, Japanese Utility Model Application No. 62-914.
No. 37 (No. 63-199545)
Lum is provided by a cutting blade (cutting blade) of a perforated cylinder (tubing body).
Pierce the cut insulation sheet (multi-film)
Now, forcibly lift this arrow (multi-film
A punch with a pick-up bar is described. And
With this drilling tool, a substantially U-shaped flange is placed on the upper end of the drilling cylinder.
While securing the frame, center the upper end of this frame
The boss is fixed to the boss.
Insert the support rod and insert the arrowhead from below
Then, it is fastened and fixed with bolts.

[0005]

[Problems to be solved by the invention] By the way, as mentioned above
The drilling tool with a solid arrowhead has the condition of the nursery and the heat insulation sheet.
Consideration of differences in usability or usability depending on users
Then, it is possible to adjust the height of the arrow body with respect to the drilling cylinder
Is desirable. On the other hand, the aforementioned Japanese Utility Model Application No. 62-9143
In the drilling tool described in the microfilm of No. 7, the bolt
If you loosen the support rod and arrow body with respect to the boss,
Which can be adjusted to the height of the arrow body with respect to the cylinder
It seems that the support rod and arrow are common to the boss
Inserted into the boss and tightened with common bolts
When this bolt is loosened, not only the arrow
The support rod can be moved, and the height of the
Only It is not something that can be easily adjusted. Moreover,
Since the upper part of the arrow is along the support rod,
It is difficult to operate only the arrowhead by biting,
Even if you adjust the length, once the entire drilling tool
To operate the lower part of the arrowhead
No.

[0006] The present invention is intended to solve such problems by providing an arrow body in addition to the drilling tube, the cut sheet piece having a heat insulating sheet so as to be recovered to easily For the drilling tool in the nursery,
An object of the present invention is to make it possible to easily adjust the height of an arrow body .

[0007]

According to the present invention, there is provided a drilling tool for a nursery having a heat retaining sheet according to the present invention.
A pair of rods whose lower ends are fixed to both upper sides of this perforated cylinder
Frame and a frame fixed to the top of these frames
A hand, a horizontal rod erected between the two frames, and a horizontal rod
A bushing which is vertically fixed to, the vertical direction as the axial direction
And a arrows body comprising the arrowhead portion that sit in a tube opened the hole provided integrally with Yagara and lower ends of this Yagara rod-shaped, front
Penetration of the arrowhead through the bearing cylinder so that it can move up and down.
It can be fixed at any position with respect to the bearing cylinder .

[0008]

The drilling tool of nursery with insulation sheet of the effects of the present invention, when drilling the covered seedbed by insulation sheets, holes
The handle connected to the punching cylinder via the frame is gripped, the punching cylinder is applied to the heat retaining sheet from above, and the punching cylinder is pushed down. Along with this, the perforated cylinder penetrates into the soil, and a predetermined portion of the heat retaining sheet is cut off by the cutting blade at the lower end of the perforated cylinder. At the same time, the arrow in the perforated cylinder penetrates the cut sheet piece from above, and the sheet piece is hooked and held on the arrowhead at the lower end of the arrow body that has penetrated the sheet piece. Each time a hole is punched, the newly cut sheet piece is added below the previously cut sheet piece on the arrowhead, and the sheet piece is not left in the soil or around. The cut-out sheet pieces can be collectively removed from the arrow later and disposed of later. The arrowhead is its arrowhead
Bearing provided on a horizontal rod erected between a pair of frames
The tube penetrates vertically so that it can move up and down.
Depending on the condition and usability,
Can be adjusted arbitrarily. To adjust the height of the arrowhead,
Loosen the fixture and move the arrow handle vertically with respect to the bearing cylinder
Later, the fasteners are tightened again.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring now to FIGS. 1 to 3, a drill for a nursery having a heat retaining sheet according to the present invention will be described. 4 and 5 described above are denoted by the same reference numerals, description thereof will be omitted, and different points will be mainly described. A horizontal rod 11 is fixedly installed below the two frames 1. This horizontal rod 11 has a bearing cylinder
Numeral 12 is fixed vertically, and a rod-shaped arrow pattern 14 of an arrow body 13 whose vertical direction is the axial direction penetrates the bearing cylinder 12 so as to be vertically movable. The arrowhead 14 can be fixed to the bearing cylinder 12 at an arbitrary position by a wing bolt 15 as a fixing tool . Also, at the lower end of the arrowhead 14,
An arrowhead section 16 is provided integrally. The arrowhead portion 16 has a slanted edge 16a that is pointed downward, and that is slightly inclined in a direction in which both sides of the upper edge rise as the arrowheads 14 are separated.

Next, the operation of the above configuration will be described. The height of the arrow body 13 with respect to the drill cylinder 3 can be adjusted arbitrarily, but the arrowhead part 16 is located at the lower part in the drill cylinder 3.
You. To adjust the height of the arrow body 13, loosen the wing bolt 15
After moving the arrowhead 14 up and down with respect to the bearing cylinder 12,
The bolt 15 is tightened to fix the arrow body 13 to the bored cylinder 3. Then, in order to make a hole in the seeding or planting portion on the nursery bed covered with the vinyl sheet 6 as a heat retaining sheet, the operator holds the handle 2 with both hands and moves the hole-piercing cylinder 3 to a predetermined position on the vinyl sheet 6. And press down the entire piercing tool. Thereby, as shown in FIG. 3, the perforated tube 3 bites into the soil 7, and the vinyl sheet 6 is cut into a circular shape by the cutting blade 4 at the lower end of the perforated tube 3. At the same time, the arrow body 13 pierces the cut sheet piece 6a from above, and the arrowhead portion 16 penetrates through the sheet piece 6a. Hereafter, this sheet piece 6a
Is hooked and held on the arrowhead portion 16. Each time a hole is punched, the newly cut sheet piece 6a
16 and joins below the sheet piece 6a cut off last time. In addition, both upper edges of the arrowhead portion 16 are inclined edges 16a which are inclined in a direction of ascending as the distance from the arrowhead 14 is increased, and the tips of these inclined edges 16a are pierced into the sheet piece 6a. Is securely held on the arrowhead portion 16 and does not easily fall off the arrowhead 13. Then, the sheet pieces 6a that are cut off and stacked on the arrowhead portion 16 of the arrowhead 13 are appropriately collectively removed later from the arrowhead 13 and discarded.

As described above, according to the configuration of the above-described embodiment, since the arrow body 13 is provided in the perforated cylinder 3, the cut-off sheet piece 6a can be reliably collected at the time of perforation. The piece 6a is not left in the soil 7 or the surroundings. Therefore, environmental pollution caused by leaving the sheet piece 6a, which is industrial waste, can be prevented. Further, as described above, the collection and disposal of the cut sheet pieces 6a can be performed extremely easily without any trouble, and the work efficiency is good. In addition, nurseries and
Holes according to the condition of the neal sheet 6 or ease of use
The height of the arrow body 13 with respect to the opening cylinder 3 can be adjusted,
You. Moreover, the height can be easily adjusted.

It should be noted that the present invention is not limited to the above embodiment, and various modifications can be made. For example,
The shapes of the frame, handle, and the like are not limited to those in the above embodiment.

[0013]

According to the present invention, in a drilling tool for a nursery having a heat retaining sheet, in addition to a drilling cylinder having a cutting blade at a lower end, an arrow having an arrowhead portion at a lower end located in the drilling cylinder. With the body, the cut-out sheet pieces are held on the arrowheads of the arrowheads, so that the cut-out sheet pieces can be collected easily and reliably, and environmental pollution caused by leaving the sheet pieces unattended Can also be prevented. Also, the lower end is
The handle is fixed to the upper side of the barrel, and the handle is fixed to the upper end.
A horizontal rod is erected between a pair of frames, and the vertical rod is
It is assumed that the arrow pattern of the arrowhead penetrates the provided bearing cylinder so that it can move vertically.
It can be fixed at any position with respect to the bushing with a fixture
The condition of the nursery and the heat insulation sheet or
Depending on how you can adjust the height of the arrow body with respect to the drill cylinder
It is convenient and can make this adjustment easy.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view showing an embodiment of a nursery hole punching device having a heat retaining sheet of the present invention.

FIG. 2 is a lower perspective view of the vicinity of the perforated cylinder.

FIG. 3 is a cross-sectional view for explaining the same operation.

FIG. 4 is a perspective view showing an example of a conventional drill for a nursery having a heat retaining sheet.

FIG. 5 is a cross-sectional view for explaining the same operation.

[Description of Signs ] 1 Frame 2 Handle 3 Perforated cylinder 4 Cutting blade 6 Vinyl sheet (heat insulation sheet) 11 Horizontal rod 12 Bearing cylinder 13 Arrow body 14 Arrow pattern 15 Butterfly bolt (fixture) 16 Arrowhead

Claims (1)

(57) [Scope of request for utility model registration] 1. A boring cylinder having an axially vertical direction and a cutting blade at a lower end, and a lower end fixed to both upper sides of the boring cylinder.
A pair of fixed rod-shaped frames, and above these frames
A handle fixed to the end and installed between the two frames
A horizontal rod, a bearing cylinder fixed vertically to the horizontal rod, a rod-shaped arrow with an axial direction in the vertical direction, and a lower end of the arrow.
A <br/> arrows body comprising the arrowhead portion you positioned in the drilling cylinder provided in the body, vertically movable transmural said Yagara to said bushing
It can be fixed at any position with respect to the bearing cylinder by through fixing
Boring tool nurseries with heat insulating sheet, characterized in that the.