| 摘要 |
<p>PROBLEM TO BE SOLVED: To efficiently and uniformly contract at thermal contraction tube without the use of fire by mounting a cover section on a base section having a recess fitted to the outer shape of the thermalcontraction tube using a hinge, so that it is operable, and locating sources of infrared radiation in inner parts of the base section and the cover section. SOLUTION: A main body 1 is made by connecting a base section 2 and a cover section 3 using a hinge 4. In an inner circumfernetial face of each of he base section 2 and the cover section 3, a semicircular recess 10 is formed so that when the main body 1 is closed the semicircular recesses 10 of the base section 2 and the cover section 3 form a circular shape fitted for the outer shape of a thermal contraction tube. A buckle 11 is installed at a point on an outer face of the main body 1 nearly opposite to the point where the hinge 4 is installed. By locking and unlocking the buckle 11, the main body 1 can be opened and closed. Furthermore, a total of 8 infrared lamps 5 are located in some parts in the base section 2 and the cover section 3 corresponding to the corners of the outer shape. By this method, the thermal contraction tube can be contracted efficiently without the use of fire and, moreover, the contraction work can be done without requiring skills.</p> |
