| 摘要 |
PROBLEM TO BE SOLVED: To miniaturize devices and facilitate assembling and disassembling work in a short time by hermetically sealing a coil in a coil pack, in which a plurality of film segments are suspended in the shaft direction along a cover for covering one end surface of a cylindrical coil, and an integrated body is formed by jointing connecting means of protruding parts protruded to the outer peripheral side. SOLUTION: A hollow part 2 in which an iron core is inserted is formed, and lead wire delivery parts 3A are led out from a cylindrical coil 1 covered with a coil pack 4 to the outer periphery. A cylinder back film is bonded by rolling one semilunar end portion back cover 5A and a rectangular back film segment along the shape of the cylindrical coil 1. A cylinder front film segment 6 combines a semilunar end surface front cover 6A and a rectangular front film segment. Zippers having protruding parts and recessed parts are formed on protruding parts of a cylinder back film segment 5 and the cylinder front film segment 6. As a result, assembling and disassembling of components, such as a cylinder front film segment and a cylinder back film segment in a coil pack are enabled, by pressing and pulling the protruding parts from the outer peripheral side by a worker.
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