The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 05, 2000
Filed:
Apr. 30, 1999
Shuich Mizata, Gifu-ken, JP;
Fuyuhiro Tunekuni, Miyagi-ken, JP;
Masaki Hashimoto, Osaka, JP;
Yasuo Ako, Osaka, JP;
INOAC Elastomer Co. Ltd., Ibi-gun, JP;
Araya Industrial Co., Ltd., Osaka, JP;
INOAC Corporation, Aichi, JP;
Abstract
A bicycle spoke rim wheel for a WO type tubeless tire is disclosed having a rim construction which can secure an airtightness, reduce a weight of the wheel, and easily fit a tire. Particularly, a seal material within a recess can be reduced in weight, and mounting of a tire bead on the rim is facilitated by placing the tire bead into the recess. This provides an arrangement, wherein a rim (1) is provided with a diaphragm (5) on a rim outer side (3), a nipple hole (20) of the diaphragm (5) is airtightened by a seal material (24) in the form of a metal tape and, when air is filled into a tubeless tire (37), a soft foam (25) is further bonded to the upper surface of the seal material (24) so that a tire bead portion (38) is readily placed on a bead-seating portion (11), whereby even a thin tire bead portion (38) can be easily sealed, as a result of which the shape of the bead-seating portion from a rim ear portion (7) to a hump portion (12) is curved to enlarge a sealing area, a valve (29) is pressed against the diaphragm (5) through a packing (34) and airtightened, a spoke mounting-hole (23) is bored in thick-wall portion of the rim body surface (18), and a spoke end (28) and a nipple head (26) are received in a hollow portion (8).