| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a locking device the operability of which is not lowered by adhesion of a beverage or dust. <P>SOLUTION: A plurality of grooves 4e are recessedly arranged on the upper surfaces of base end 4a and front end 4b of a locking pawl 4 facing the lower surface of upper wall 2b of a case 2. Even when a beverage or dust which has intruded into the case 2 intrudes up to a clearance s<SB>3</SB>between the upper surface of base end 4a of the locking pawl 4 and the lower surface of upper wall 2b of the case 2, the beverage or the dust is scraped down into the grooves 4e in a lower position than the uppermost surface of the base end 4a. Thus, the beverage or the dust is prevented from being fixed to the clearance s<SB>3</SB>, and the locking pawl 4 is always smoothly advanced and retreated. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
