JPH0323485Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a tool for breaking the tip portion of a separator used in concrete construction that protrudes from a hardened concrete wall surface.

Previously, the protruding parts of the separators that protruded from the concrete wall after concrete was poured were broken by hitting them with a hammer, but since the work was done on temporary scaffolding with poor footing, there was a risk of losing balance and falling from a high place. Moreover, there was a drawback that the tip of the broken separator could fall and be dangerous. In addition, a separator tip breaking tool using a pipe is known from Japanese Utility Model Application No. 55-82345, but with this, when the separator is inserted into one opening of the pipe and broken, it falls directly through the inside of the pipe. It was still dangerous. Furthermore, since the separator does not fit into the inside of the pipe, there is a drawback that the separator easily slips out. In addition, the separator having a spherical head at the tip has the disadvantage that it is often necessary to prepare a separate tool with a larger pipe diameter, resulting in a time-consuming process. The present invention aims to provide a separator tip breaking tool that eliminates these drawbacks.

In the present invention, a vertical hole 3 having a diameter slightly larger than the diameter of the spherical head a is provided at a position close to the tip opening 2 of the hollow cylinder 1 into which the separator A having a spherical head a at the tip can be inserted; This relates to a separator tip breaking tool which is provided with a lid 5 having a hole 4 slightly larger than the rod diameter of the separator A at the opposite end of the cylindrical body. In the figure, 6 and 6' are connecting side plates for forming the vertical hole 3, 7 is a concrete wall, and b is a notch provided at the break point of the separator A.

In this design, a ball head a is attached to the tip of separator A.
If there is, first grasp the hollow cylindrical body 1 with your hand and insert the tip of the separator A from the tip opening 2,
Next, the hollow cylindrical body A is tilted, a part of its spherical head a enters the vertical hole 3, and the inner wall edge of the vertical hole is connected to the spherical head a.
touch the base of the From now on, the hollow cylindrical body 1 is rotated around the axis of the separator A by further tilting the hollow cylindrical body 1 toward the concrete wall 7 side.
By doing this, the ball head a is restrained in the vertical hole 3, and the hollow cylindrical body 1 does not slip out of the separator A. Force is applied to the separator A from the contact point of the inner wall edge of the vertical hole 3, causing its bending. The notch b of the separator A is broken by the shearing force of the moment, and since the hollow cylindrical body 1 is rotated, the breakage of the notch b occurs gradually around the entire circumference of the notch b, and the notch b portion is broken with a light force. The separator A can be broken off from the base (see Figure 5A). The tip of the broken separator falls into the hollow part of the hollow cylindrical body 1 to prevent it from falling. Next, in the case of a separator without a spherical head a, insert the separator A into the hole 4 of the lid 5 on the opposite side of the hollow cylinder 1, and tilt the hollow cylinder 1 in the same manner as above and rotate it. The threaded part of the separator A is slanted to lock onto the inner wall of the hole 4, and the unevenness of the thread prevents the hollow cylindrical body 1 from slipping out.
It can be broken from the notch b. Of course, even in the case of a separator without a ball head, the vertical hole 3
It can be inserted into the opening 2 at the tip and broken. In this case, the tip of the broken separator is attached to the hollow cylindrical body 1.
It is possible to store it inside.

As described above, according to the present invention, the tip of the separator can be safely broken with light force without falling off, and the tip of the separator that has been broken can also be broken off with ease. It doesn't fly or fall. Furthermore, this separator tip breaking tool has the effect of being safe without causing an accident of falling due to loss of posture balance.

[Brief explanation of the drawing]

Fig. 1 is a front view showing the separator tip breaking tool of the present invention, Fig. 2 is a plan view thereof, Fig. 3 is a longitudinal sectional view thereof, Fig. 4 is a sectional view taken along the line - Fig. 1, Fig. 5 Roro is an explanatory diagram showing a state of use. 1: Hollow cylinder, 2: Opening, 3: Vertical hole, 4:
Hole, 5: Lid, A: Separator, a: Ball head,
b: Notch.

Claims (1)

[Scope of utility model registration request] A vertical hole 3 with a diameter slightly larger than the diameter of the spherical head a is provided at a position close to the tip opening 2 of the hollow cylinder 1 into which the separator A having a spherical head a at the tip can be inserted, and A separator tip breaking tool which is provided with a lid 5 having a hole 4 slightly larger than the rod diameter of the separator A at the end.