| 摘要 |
PROBLEM TO BE SOLVED: To reduce the number of parts of a container in which thread-engaged parts return to their thread-engaged state when a movable body moves forward or backward and the thread-engaged parts are released from their thread-engaged state. SOLUTION: The container 100 includes a movable body 6 and thread-engaged parts 8. When a main cylinder 2 and an operation cylinder 3 are relatively rotated in one direction, the movable body 6 moves forward by the action of screwing of the thread-engaged parts 8 and the coating material M is extruded from an opening 1a. When they are relatively rotated in the other direction, the movable body 6 moves backward by the action of screwing of the thread-engaged parts 8. It has an elastic body 5z which provides the thread-engaged parts 8 with extending elastic force so that the thread-engaged parts 8 may be back to their thread-engaged state when the movable body 6 moves forward and the thread-engaged parts 8 are released from their thread-engaged state and provides the thread-engaged parts 8 with compressing elastic force so that the thread-engaged parts 8 may be back to their thread-engaged state when the movable body 6 moves backward and the thread-engaged parts 8 are released from their thread-engaged state. The elastic body 5z is used for the two cases of return to the tread-engaged state. Consequently, since the elastic body 5z can be provided for only one of the thread-engaged parts 8 so that the two types of elastic force can be provided for return to the thread-engaged state, it can be integrated with one of the thread-engaged parts 8 into a component. COPYRIGHT: (C)2009,JPO&INPIT
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