| 摘要 |
PROBLEM TO BE SOLVED: To provide a coil cartridge which can facilitate the charge and replacement of a filling material, can be simply manufactured, has impact resistance itself, can prevent the breakage of an inner peripheral surface of a vessel, in which the cartridge is housed, can increase/decrease the charging amount of the filling material, and is deformable with its flexibility. SOLUTION: The coil cartridge has a spiral intermediate part having a housing space of a granular filling material 2 and both end parts where the granular filling material 2 housed in the housing space cannot pass. When pulling force is applied in a direction of a central axis of a spiral shape of the intermediate part, a gap of the spiral shape of the intermediate part is broadened till the granular filling material 2 can pass therethrough to enable the granular filling material 2 to be charged in the housing space and to be discharged from the housing space. When the pulling force is released, the gap of the spiral shape of the intermediate part becomes narrow owing to elastic force of the intermediate part till the granular filling material 2 cannot pass therethrough but fluid can pass therethrough to confine the granular filling material 2 in the housing space. COPYRIGHT: (C)2007,JPO&INPIT
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