| 摘要 |
PURPOSE:To mounting a container cap on a main container in a press-contacting state at plural positions and to improve fitting strength and moisture resistance by forming >=2 grooves of the main container and >=2 ribs of the container cap. CONSTITUTION:The main container body 1 is in a bottomed cylinder shape and its opening edge part 3 is formed slightly thick. Two groove 4a and 4a which are sectioned almost in an arcuate shape are formed in the internal surface of the opening edge part 3. The container cap 2, on the other hand, is constituted by drooping a peripheral wall part 6 from the base part of a thick flange 5 and providing a swell part 7 which contains the shaft part of a cassette on the cap surface from its lower end to the center horizontally. Then, two nearly arcuate ribs 8a and 8a which are fitted in the grooves 4a and 4a of the main container body are formed almost in the center of the peripheral wall part 6. This container cap 2 is mounted on the main container body 1 and then the ribs 8a and 8a are fitted in the grooves 4a and 4a and abut on them at two positions to hold the inside airtight. |
