| 摘要 |
<p>A synthetic resin filler cap (1), comprising a cap body (2) closely fitted to a bottle mouth tube (24) for opening a filler port and an outer cap body (15) threadedly attached to and detached from the cap body (2) for closing and opening the filler port, wherein a first locking part (5) is formed on the cap body (2) at the outer peripheral center part of fitted tube (3), a second locking part (23) for locking from the underside of the first locking part (5) is provided on a locking tube (22) formed integrally with an outer locking part (5) through the broken piece (21) thereof, and the fitting strength of the cap body (2) to the bottle mouth tube (24) is set to such a degree that the cap body (2) can be removed off manually, whereby the separation of the filler cap (1) from the bottle mouth tube (24) can be achieved easily.</p> |
