| 摘要 |
PROBLEM TO BE SOLVED: To reduce the time required for replacing a cartridge of a delivery gun. SOLUTION: A pair of supporting arms 4, 4, which are parallel to each other, is provided in a gun body 2. A cylinder 7 is placed between the arms 4, 4. A screw member 72 is threadedly engaged with the cylinder 7 in a direction normal to the axis of the cylinder 7. In the supporting arm 4, an oblong hole 42 extending in the axial direction of the arm 4 is formed. The threaded part of the member 72 (not shown) is inserted into the hole 42, so that the cylinder 7 can be moved in the longitudinal direction of the arm 4 and the cylinder 7 is made rotatable about an axis oriented in a direction normal to the longitudinal direction of the arm 4.
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