JPS6026930Y2 - safety pick - Google Patents

Description

[Detailed description of the invention] This invention relates to a safety pick used when excavating underground objects such as telecommunication cables, water pipes, gas pipes, etc.

Traditionally, electric wires were distributed to each customer from above-ground poles, but recently in cities, electric wires are being buried underground.

Also, water pipes have been buried underground for a long time.

Digging underground with picks for failures or additions would damage electrical cables and water pipes, and it would take a lot of time to repair them.

The purpose of this invention is to provide a safety pick that does not damage electric cables or water pipes when drilling holes with the pick in the above-mentioned situation.

This invention will be explained with reference to embodiments shown in the accompanying drawings.

In an iron pick having excavating bodies 1 and 2 on both sides of the handle hole, one excavating body 1 is left as is, and a female thread 3 is provided in the tip of the other excavating body 2.

The adapter 4 is made of metal and has rod screws 6 and 7 on both sides of the disc portion 5.

The tip part 8 is made of synthetic resin, for example, nylon 6, and a conical part 10 is connected to a cylindrical part 9, and the disc part 5 is inserted into the cylindrical part 9.
A hole 11 into which the screw fits and a female threaded portion 12 are provided.

As shown in FIG. 6, the tip 8 is integrally cast with synthetic resin on the rod screw 7 of the adapter 4, and the rod screw 6 of the adapter 4 is screwed into the female thread of the excavation body 2. Drilling body 2
contact with.

To explain how to use the present invention, earth and sand are dug with the iron excavation body 1 of the pick, and when the earth and sand have been dug to a certain extent, the pick is turned upside down and the earth and sand is dug with the excavation body 2.

In the case of electrical work, since the tip 8 of the excavation body 2 is made of synthetic resin, it will not damage the cable.

Also, if the cable is exposed, it has electrical insulation and is less dangerous.

Moreover, by replacing the tip 8, it can be used any number of times.

In addition, when digging gas pipes and water pipes, there is no fear of making holes in the pipes.

Furthermore, in the present invention, one side is made of conventional iron and the other side is made of synthetic resin, so one pick can be used in two ways, making it extremely convenient in practice.

In addition, since various things such as electric cables, communication cables, water pipes, gas pipes, etc. are buried underground, there are great effects such as less impact on the buried objects in the case of a single construction work.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a front view, Fig. 2 is a partially sectional front view of the other excavation body, Fig. 3 is a side view of Fig. 2, and Fig. 4 is a front view of the adapter. , FIG. 5 is a partially sectional front view of the tip, and FIG. 6 is an assembled view of the other excavator. DESCRIPTION OF SYMBOLS 1... One excavation body, 2... The other excavation body,... Adapter, 8... Tip part.

Claims (1)

[Scope of utility model registration request] In an iron pick having one digging body 1 and the other digging body 2 on both sides of the handle hole, a synthetic resin tip 3 is connected to the tip of the other digging body 2 via an adapter 4. Safety pick.