JPH0112913Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a reamer for cutting the opening of a gas tank whose one end connects the other end of a rubber tube connected to a gas appliance to increase the inner diameter of the opening.

A gas fuse is sometimes inserted into the mouth of the gas kettle to prevent gas from leaking if the rubber tube comes off. Therefore, when trying to fit a gas fuse into the mouth of a gas tank, the outer diameter of the gas fuse is larger than the inner diameter of the mouth of the gas tank, and the gas fuse may not fit into the mouth of the gas tank.

The object of the present invention is to provide a reamer for cutting the gas socket opening, which cuts the internal diameter of the gas cylinder opening to match the outer diameter of the gas cylinder, in cases where the gas fuse is larger than the internal diameter of the gas cylinder opening and cannot fit the gas fuse. purpose.

Hereinafter, the present invention will be explained based on drawings showing an example of implementation. In the figure, reference numeral 1 denotes linear blade parts formed at appropriate angles in the circumferential direction, and in the embodiment shown in the drawing, they are formed long in the axial direction at six locations, and the tip part is tapered to form a straight blade part 1a. is the tip tapered part. Reference numeral 2 denotes a tapered blade part that is integrally connected to each linear blade part 1 and is inclined so as to gradually become higher from the linear blade part 1 side. Reference numeral 3 denotes a stopper part connected to the upper end of each tapered blade part 2, and the surface of this stopper part 3 faces in a direction perpendicular to the axial direction. Reference numeral 4 denotes a square head connected to the stopper part 3, into which a central square hole of a handle 5 as shown by the two-dot chain line in FIG. 2 is fitted. 6 is a center hole penetrating in the axial direction. Reference numeral 7 denotes the opening of the gasket, the inner surface of which is cut by the reamer configured as described above; 8, when the inner surface of the gasket opening 7 is cut by the reamer, the cutting powder is released into the gasket opening 7; An elastic body such as a sponge is inserted into the gasket opening 7 to prevent it from penetrating deeper inside, and is held by the tip flange 10 of the shaft 9 passing through the center hole 6. .

Next, a description will be given of the operation of cutting the inner surface of the gasket opening 7 using the reamer. When inserting the gas fuse into the gas tank opening 7, if the inner diameter of the gas socket 7 is smaller than the outer diameter of the gas fuse, it is necessary to cut the inner surface of the gas socket 7 to enlarge the diameter. In that case, force is applied in the direction of inserting the reamer from the tip tapered portion 1a into the gas kettle opening 7, and while the reamer is rotated by the handle 5, the inner surface of the gas kock mouth 7 is cut with the linear blade portions 1. do. The tapered blade portion 2 also chamfers the tip portion 7a of the gas stick mouth portion 7. During this cutting, by pulling the shaft 9 forward and clamping the elastic body 8 between the tip flange 10 of the shaft 9 and the reamer tip, the elastic body 8 is deformed to expand its diameter. It comes into pressure contact with the inner surface of the gas tank opening 7, and can prevent cutting powder produced by the reamer from entering deeper than the gas socket opening 7. After cutting, by pulling out the elastic body 8 from the gas socket opening 7 in a clamped state, the cutting powder inside the gas socket opening 7 can be removed to the outside.

The length from the stopper part 3 to the tip of the linear blade part 1 is formed to be slightly longer than the length of the gas fuse inserted into the gas socket opening part 7. Further, the outer diameter of the reamer is formed to match the outer diameter of the gas fuse to be inserted. Furthermore, as mentioned above, cutting the tip 7a of the gas bottle opening 7 with the tapered blade 2 prevents the O-ring fitted onto the gas fuse from being scratched when inserted into the gas bottle opening 7. This is to do so.

The reamer for cutting the gas socket opening of the present invention can be implemented as described above, and the inner diameter of the gas cylinder opening can be easily cut to match the outer diameter of the gas fuse, and the tip of the gas cylinder opening can be chamfered. This also prevents damage to the O-ring that fits around the inserted gas fuse.

In addition, in the reamer for cutting the mouth of the gasket of the present invention, the linear blade for cutting the inner diameter of the mouth of the gaskot and the tapered blade for chamfering the tip of the mouth of the gaskot are integrally formed. can be provided at a lower price than.

[Brief explanation of the drawing]

The drawings show an example of the implementation of the present invention.
The figure is a perspective view, and FIG. 2 is a side sectional view showing the state of use. 1... linear blade part, 1a... tip tapered part,
2...Tapered blade part, 3...Stopper part, 4
... Square head, 5 ... Handle, 6 ... Center hole, 7
...Gaskock opening, 8...Elastic body, 9...Shaft,
10...Tip flange.

Claims (1)

[Scope of utility model registration request] A reamer for cutting the gas socket opening into which a gas leak prevention gas fuse is inserted to match the outer diameter of the gas fuse. A linear blade part of a book, a tapered blade part that is integrally connected to each blade part and slopes gradually higher from each blade part, and a tapered blade part formed at the end on the side of the tapered blade part. A reamer for cutting the mouth of a gas cutter, characterized by comprising a head for engaging a handle.