JP3128578U - Planting hole excavator with multi film cutter - Google Patents

Abstract

Provided is a planting hole excavator with a multifilm cutter that can quickly cut out a multifilm into a precise circular shape and can also excavate a planting hole at the same time.
A planting hole excavator with a multi-film cutter includes a hollow shaft, a cylindrical blade attached to a lower end of the hollow shaft, and a cylindrical blade from a guide tube through which the hollow shaft is inserted. A protective frame 4 attached in an enclosing state, and an extruded shaft provided through a hollow shaft 2 in the vertical direction, a disk-like extruded plate 6a provided at the lower end, and a locking pin 6b attached orthogonally at the upper end 6, a spring receiver 7 (7 a and 7 b) attached to the hollow shaft 2, and a coil spring 8 disposed between these spring receivers 7 (7 a and 7 b).
[Selection] Figure 1

Description

  The present invention relates to a planting hole excavator with a multifilm cutter that is used for drilling a planting hole in soil at the same time as making a hole in a multifilm when planting a potted seedling.

  Multi-films are used for the cultivation of vegetables and flower buds for high quality and stable production. Although the work which cuts a multifilm when opening a planting hole in the soil coat | covered with this multifilm is essential, as a tool used for this work, there is a multifilm cutter cut out in a circular shape. However, a cutter knife or a multi-film cutter that cuts out in a circle requires considerable skill to cut out quickly.

  So, for example, attach a handle to the upper part of the hollow shaft, attach a cylindrical blade to the lower part, attach a handle to the upper part of the rod, attach a column and a footboard to the lower part, push the handle down with one hand, cut the multi film and raise the handle, An instrument (see Patent Document 1) that allows holes to be formed when both handles are held with both hands and the treadle is stepped on with a foot, or a vertical handle and a cross-shaped cutter section that is attached to the lower end of the vertical handle 2 and is detachably attached. It consists of a protective frame attached to the lower end of the vertical handle in a state surrounding the cross cutter part, a horizontal cutter guide, a vertical cutter guide, a spring stopper, and a coil spring. Equipment that can be used has been proposed.

JP 2004-222695 A JP 2002-159227 A

  In view of the problems of the prior art, the present invention also provides a planting hole excavator with a multifilm cutter that not only can cut out a multifilm quickly and accurately into a circular shape but can also drill a planting hole at the same time. The purpose is to provide.

  For this reason, the planting hole excavator with a multi-film cutter according to the present invention includes a hollow shaft, a cylindrical blade connected to the lower end of the hollow shaft, a protective frame attached around the cylindrical blade, and the hollow shaft. In a planting hole excavator with a multi-film cutter that is loosely fitted and elastically biases the lifting and lowering operation of the hollow shaft, a soil extrusion shaft penetrating through the hollow shaft so as to be movable up and down, and the soil extrusion shaft An earth extrusion plate is provided which is attached to the lower end and is accommodated in the cylindrical blade.

(1) Not only can the multi-film be cut quickly and accurately into a circular shape, but also a planting hole can be excavated simultaneously.
(2) The soil accumulated in the cylindrical blade can be discharged by the extrusion plate, and continuous operation becomes easy.

Hereinafter, embodiments of the present invention will be described based on examples shown in the drawings.
FIG. 1 is a perspective view showing a planting hole excavator with a multi-film cutter according to the present invention, FIG. 2 is a cross-sectional view of an essential part of FIG. 1, and FIG.

  1 is a planting hole excavator with a multi-film cutter according to the present invention. A hollow shaft 2, a cylindrical blade 3 attached to the lower end of the hollow shaft 2, and a cylindrical blade 3 from a guide tube 5 through which the hollow shaft 2 is inserted. A protective frame 4 attached so as to surround the upper and lower ends, a hollow shaft 2 passing through the top and bottom, a disc-shaped earth extrusion plate 6a provided at the lower end, and a locking pin 6b attached perpendicularly to the upper end. The earth pushing shaft 6 is composed of a spring holder 7 (7a and 7b) attached to the hollow shaft 2, and a coil spring 8 disposed between the spring holders 7 (7a and 7b).

  The hollow shaft 2 has a grip 2a made of synthetic resin attached to the upper end of a circular tube having a predetermined length, and a through hole 2b through which the extruded shaft 6 can be inserted is formed at the top of the grip 2a.

  The cylindrical blade 3 has a through hole 3b through which an earth extruded shaft 6 can be inserted in the upper plate, and the lower end of the hollow shaft 2 is connected to the through hole 3b. A plurality of saw blades 3a for cutting out the multifilm are formed at the lower end of the cylindrical blade 3.

  The protective frame 4 includes a guide cylinder 5 through which the hollow shaft 2 is inserted so as to be movable up and down in the center, a protective arm 4a disposed in three directions around the guide cylinder 5, and an annular shape connected to the lower end of the protective arm 4a. Film presser 4b. Each protection arm 4a has a substantially inverted L shape, and the upper end is connected to the side surface of the guide tube 5 and the lower end is connected to an annular film presser 4b. In this case, the diameter of the film presser 4 b is configured to be larger than the diameter of the cylindrical blade 3.

  The spring receiver 7 is composed of a dish-shaped lower ring 7 b that is arranged on the upper end of the guide cylinder 5 and is loosely fitted to the hollow shaft 2, and an upper ring 7 a that is secured to the middle of the hollow shaft 2 with a split pin 9. . The coil spring 8 is loosely fitted to the lower part from the middle of the hollow shaft 2, the upper end is in contact with the upper ring 7 a, and the lower end is in contact with the guide cylinder 5 of the protective frame 4. Energize the bullet.

The planting hole excavator 1 with a multi-film cutter configured as described above is used as follows.
As shown to Fig.3 (a), the place which should excavate the planting hole 11a of the straw (soil) 11 coat | covered with the multi sheet | seat 10 is first pressed with the film holder 4b. Next, as shown in FIG. 3B, the hollow sheet 2 is pushed down while rotating the cylindrical blade 3, whereby the multi-sheet 10 is cut into a circular shape by the saw blade 3a and the planting hole 11a is excavated. . At that time, the earth pushing plate 6 a is pushed up by the earth 11 stored in the cylindrical blade 3. Finally, as shown in FIG. 3C, the soil 11 stored in the cylindrical blade 3 can be discharged by pushing down the soil extrusion shaft 6.

It is a perspective view which shows the planting hole excavator with a multi film cutter which concerns on this invention. It is principal part sectional drawing of FIG. It is sectional drawing which shows a use condition.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Planting hole excavator with a multi film cutter 2 Hollow shaft 2a Grip 2b Grip through-hole 3 Cylindrical blade 3a Saw blade 3b Cylindrical blade through-hole 4 Protective frame 4a Protective arm 4b Film presser 5 Guide cylinder 6 Soil extrusion shaft 6a Soil Extrusion plate 6b Locking pin 7 Spring receiver 7a Upper ring 7b of spring receiver 8 Lower ring of spring receiver 8 Coil spring 9 Split pin 10 Multi film 11
11a planting hole

Claims (1)

A hollow shaft, a cylindrical blade connected to the lower end of the hollow shaft, a protective frame attached around the cylindrical blade, and a spring loosely fitted to the hollow shaft to elastically bias the lifting and lowering operation of the hollow shaft In the planting hole excavator with a multi-film cutter, an earth extrusion shaft that is penetrated through the hollow shaft so as to be movable up and down, and an earth extrusion plate that is attached to the lower end of the earth extrusion shaft and is accommodated in the cylindrical blade A planting hole excavator with a multi-film cutter, characterized by comprising.