JPH0229861Y2 - - Google Patents

Description

[Detailed explanation of the invention] The purpose of this invention is to quickly and carefully dig yams, and a blade 1 is provided at the tip, and a short tube 2 that fits in the handle is provided at the base end in the opposite direction to the direction of the blade 1. , same short tube 2 and blade 1
The hoe 4 has a scooping surface 3 at an intermediate portion between the short tube 2 and the scooping surface 3, and a handle-fitting short tube 5 is formed at the connecting portion between the short tube 2 and the scooping surface 3 and is substantially orthogonal to the short tube 2. Small through-holes 6, 6 are formed in the side surfaces of the tubes 2, 5, respectively, and one end 7' of the handle 7 is formed so as to be removably fit into both the short tubes 2, 5. A locking hole 8 corresponding to each of the small through holes 6 is bored in the side surface of the
In the aligned state, the base end of the locking pin 9 inserted into the locking hole 8 from the small through hole 6 is bent and extended 10 in the direction of the handle 7, and the tip of the extension 10 is fixed to the side surface of the handle 7. The present invention also relates to a yam digging tool in which the pin 9 is inserted into the small through hole 6 due to the elasticity of the extension part 10, and the other end 7'' of the handle 7 is tapered.

The blade 1 is slightly curved as shown in Figures 1 and 2, and the scooping surface 3 is not flat, but curved in an arc shape between the blade 1 and the short tube 5 and between the side edges 3 and 3', making it smooth. The hoe 4 has a curved concave surface and a smooth curved convex surface on the back surface. The handle 7 is formed of a steel rod with an 8-square cross section, and one end 7' is formed into a short cylinder with a smaller diameter than the outer diameter of the handle 7 via a step 11, and the step 11 is in contact with the end surfaces of both the short cylinders 2 and 5. In this state, the small through hole 6 and the locking hole 8 are aligned. Further, the pin 9 and the extension part 10 are formed by springs, and the tips thereof are connected to the handle 7.
The fixing device is welded to the fixing needle 12 and fixed by pressing with the fixing needle 12, but the fixing means is not limited to this. Note that the reference numeral 5' in the figure is the opening at the other end of the short tube 5.

Therefore, as shown in FIG. 1, the hoe 4 and the handle 7 are first fitted into one short tube 5 of one end 7' of the handle 7, and the pin 9 is inserted into the small through hole 6 and the locking hole 8. When fixed, the handle 7 and the hoe 4 connect at almost right angles, so the same handle 7
While holding the yam, excavate the slope 13 shown in FIG. In this state, the pin 9 is raised from the solid line position in FIG. 3 to the imaginary line position against the elasticity of the extension part 10, and the handle 7 is pulled out from the short tube 5 to separate the hoe 4 and the handle 7.

Next, the separated one end portion 7' is fitted into the other short tube 2, and the small through hole 6 and the locking hole 8 are aligned, and the extension portion 10
When the pin 9 is inserted into both holes 6 and 8 due to its elasticity, the handle 7 and the hoe 4 are connected and fixed in the longitudinal direction as shown by solid lines in FIG. 2 and phantom lines in FIG. In this state, the handle 7 is held upright, the blade 1 is directed downward, and the soil around the yam 14 is excavated by the scooping surface 3 to form an annular hole 16 by raising and lowering or tilting it slightly.
In this state, the yam 14 is protected by the soil pillar 17. After that, remove the pin 9 from the small through hole 6 and the locking hole 8 as described above, separate the hoe 4 from the handle 7, and carefully break the soil pillar 17 with the tapered other end 7'' of the handle 7 to remove the yam in that area. 14 is exposed, and further, the hoe 4 and handle 7 are connected in the state shown in FIG. 2 to form an annular hole 16 downward, and by repeating this process, the yam 14 can be dug out to its lower end.

In conventional yam digging, it is necessary to bring at least three types of tools: one with the hoe and the handle at right angles, one with the hoe and the handle in the same direction, and a stick with a tapered tip, which are heavy and inconvenient to carry.

Since this project is constructed as described above, by simply bringing one yam in the condition shown in Figure 1 or 2, the yam digging work can be done quickly and carefully, and the yam can be dug safely without damaging the yams, making it easy to carry. There is a practical benefit in that.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the proposed yam digging tool, Fig. 2 is a perspective view of an example of implementation, Fig. 3 is a partially enlarged side view of Fig. 1, and Fig. 4 is taken along the line A-A in Fig. 3. Fig. 5 is a side view of the yam digging state. 1...blade, 2, 5...handle fitting short tube, 3...scooping surface, 4...hoe, 6...small through hole, 7...handle, 7'...
...One end, 8... Locking hole, 9... Locking pin, 10
...extension part, 7''...other end.

Claims (1)

[Scope of utility model registration request] A hoe 4 having a blade 1 at the tip, a handle-fitting short cylinder 2 in the opposite direction to the direction of the blade 1 at the base end, and a scooping surface 3 at the intermediate part between the short cylinder 2 and the blade 1, A handle-fitting short tube 5 is formed at the connection between the short tube 2 and the scooping surface 3, and is substantially perpendicular to the short tube 2, and small through holes 6, 6 are bored in the sides of both the short tubes 2, 5, respectively. One end 7' of the handle 7 is formed to be able to be removably fitted into the short tubes 2 and 5, respectively, and a locking hole 8 corresponding to the small through hole 6 is formed on the side surface of the same end 7'. In the aligned state, the proximal end of the locking pin 9 inserted into the locking hole 8 from the small through hole 6 is bent and extended 10 in the direction of the handle 7, and the tip of the extension 10 is inserted into the handle 7. A yam digging tool, which is fixed to the side surface of the yam and has the pin 9 inserted into the small through hole 6 by the elasticity of the extension part 10, and the other end 7'' of the handle 7 is tapered. .