| 摘要 |
PROBLEM TO BE SOLVED: To provide a detachable joint-filler injection nozzle attached to a breaker which makes an opening as needed in the aluminum film of a cartridge filled with joint filler by easily and securely breaking the aluminum film, linked with the action of connecting and screwing to a front discharge opening of the cartridge, resulting in eliminating the process of intentionally breaking the aluminum film. SOLUTION: A hitting breaker A has a male screw or a smooth face on the lower circular surface of a small cylindrical flange, and is vertically formed with a unit of a bending rigid tube in the inside, and is provided with a breaking cutting edge on the top end and with a rotary cutter on the slanting surface of both sides of the cutting edge. Then, there are provided a flange on the outer surface of an accepting opening, a female screw or a smooth face in the inside surface, a substrate holding the hitting breaker or the like, a cylindrical body forming a tapered passage becoming small in a diameter toward the blind end from the substrate, and a male screw on the lower circular surface of the flange of the receiving opening.
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