To provide an inexpensively manufacturable lid for blocking pits capable of completely blocking the pits irrespective of size of the pits, hardly causing deterioration and fracture, and easily attachable to the pits.
A fixing means 15 protrudedly provided on one face of a lid disk part 14 of the lid 10 for blocking pits is equipped with a pair of fixing piece parts 16, 16. Each fixing piece part 16, 16 is equipped with a fixing part 18 erected in a center part side of the lid disk part 14, and an elastic piece part 19 with a base end part 21 joined to the fixing part 18 and a tip part 22 side extended toward an outer circumference direction of the lid disk part 14, and respective fixing parts 16, 16 are arranged in substantially symmetrical positions on the basis of an imaginary center point 17 of the lid disk part 14. When a center of a pit and the imaginary center point 17 of the lid disk part 14 are aligned in a state before attachment to the pit, each tip 22, 22 is projected outward from a circumferential rim part 23 of an opening 13 of the pit, each tip 22 is elastically deformed in an imaginary center point 17 direction of the lid disk part 14 in a state attached to the pit, and it is pressed against and fixed to an interior of the pit.
OYAMA HISAKAZU
SASAKI KAZUYA
HAYASHI YOSHIHIRO
KANTO KIZAI KOGYO KK
| JP2001208276A | 2001-08-03 | |||
| JP3988000B2 | 2007-10-10 |
Akio Ishii