To provide a fastening device which is applied even to a Western style toilet bowl body of which the depth of the attachment hole such as a toilet seat attachment hole varies considerably, and which exerts a secure fixing force.
The fastening device 1 is provided with a male screw 10, a female screw 20, a washer 30 as a part unrotable, at least one bush 40 for the adjustment of length, and a rubber bush 50 for fixation. The male screw 10 is comprised of a head 11, a cylindrical part 12 and a screw part 13, and the female screw 20 is screwed to the screw part 13. Then the washer 30, which is inserted to the cylindrical part 12, is not rotated even when the head 11 is rotated from above at the time of fastening. The bush 40 is provided so that it is not rotated relatively with the washer 30, and is formed in a cylindrical shape extending in the axial direction. Then the rubber bush 50 for fixation, the movement of which in the upward direction is regulated by the bush 40 for the adjustment of length, is provided so that it is not rotated relatively with the bush 40 for the adjustment of length. The rubber bush 50 for fixation is formed in a cylindrical shape extending axially, and an expanded-diameter part 51 formed by contraction of the axial length is formed at some midpoint. Then the rubber bush 50 is provided so that it is not rotated relatively with the female screw 20.
COPYRIGHT: (C)2007,JPO&INPIT
FUKAYA HIROYASU
YANO HIROBUMI
OOHIRA AKICHIKA
NAWATANI NAOKO
KOBAYAKAWA MEGUMI
ITO HISAMI
MURATA HIROYUKI
TANIMOTO TAKASHI
| JPS5015955A | 1975-02-20 | |||
| JPH10159822A | 1998-06-16 | |||
| JPS61140208A | 1986-06-27 | |||
| JPS5312966A | 1978-02-06 | |||
| JPS6221996A | 1987-01-30 | |||
| JPH04140506A | 1992-05-14 |
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