JPS595536Y2 - Anti-vibration finish bar - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a finishing bar used for finishing the inner surface when forming a hume tube.

Conventional finishing bars of this type used a single steel bar, but because the finishing bar is inserted into the hollow part of a hume tube that rotates at high speed, it comes into contact with the inner surface and uses rotational force to create a smooth surface. The vibrations caused by the rotation of Huyum's canal were transmitted directly to the arms, causing occupational diseases.

In order to solve this problem, the inventor conducted extensive research and found that while the overall shape was almost the same, a specially structured vibration absorbing device was installed between the finished part and the grip to reduce the vibrations transmitted to the grip. It was successfully eliminated.

To explain the present invention with reference to the accompanying drawings, Fig. 1 shows an overall side view of the anti-vibration finished bar of the present invention, and A shows the finished part B.
indicates the grip.

C is a vibration absorbing part provided between the finished part A and the grip part B.

FIG. 2 shows a detailed sectional view of the vibration absorber C.

According to this, the vibration absorbing part C is separated from the front and rear finished parts A and the steel rod 6 of the grip part B, and these parts are connected with a hollow steel pipe 3, and a rubber or vinyl pipe body 4 is attached to the inner surface of this pipe 3. is inserted through the pipe 3, and a steel wire 2 is wound and fixed in a coil shape on the upper surface of the pipe 3 so as to cover the ends of the steel rod 6 of the finishing section A and the grip section B.

Reference numeral 5 in the figure is a stopper at the end of the coil. This vibration absorbing part C is a hollow pipe that connects both the finished part A and the grip part B, and uses a rubber pipe or vinyl pipe as a vibration absorber on the inner surface of the pipe 3, and a coil that is an elastic body. Since the outer periphery is coated with rubber, the impact during use is not only alleviated, but also the strength is increased because both ends of the coiled steel wire 2 are fixed across the finished part A and the steel rod 6 of the grip part B. The finished bar as a whole has the same shape as the conventional bar, so there is no discomfort in the finished bar, which is extremely effective in practical use.

[Brief explanation of the drawing]

Figure 1 shows the overall side view of the finishing bar of the present invention, and Figure 2 shows the finishing bar of the present invention.
The figure shows a detailed sectional view of the vibration absorbing section C. 1... Finishing bar 2... Coiled steel wire, 3... Steel pipe, 4... Rubber or vinyl pipe, 5... ...Coil stopper, 6
・・・・・・Steel rod.

Claims (1)

[Scope of utility model registration request] The finished part A and the grip part B of the finishing bar 1 made of a steel bar are separated, the parts are connected with a steel pipe 3, and a rubber pipe or a vinyl pipe 4 is inserted into the inner surface of the pipe 3, and the upper surface is A vibration-proof finishing bar characterized in that a steel wire 2 is wound and fixed in a coil shape over the ends of the finished part A and the grip part B to form a vibration absorbing part C.