To provide a toilet seat capable of maintaining appearance performance, waterproof performance, and cleanliness for a long time.
A toilet seat includes: an upper toilet seat casing 410 having a seat surface; a lower toilet seat casing 420 formed of a resin material; and an exterior member 430 that covers approximately all the surfaces of the upper toilet seat casing 410 and at least a part of the lower toilet seat casing 420. The exterior member 430 is formed of a flexible filmy thermoplastic resin material by heating. By jointing the end part of the exterior member 430 with the lower toilet seat casing 420 by welding, both decoration treatment of the toilet seat 400 and waterproof treatment at the joint part of the upper toilet seat casing 410 with the lower toilet seat casing 420 can be simultaneously practiced. By welding the end part of the exterior member 430, stripping from the exterior member 430 can be prevented so as to stably maintain the appearance and the interior function of the toilet seat 400 over a long period of time.
IWANAGA MASAZUMI
ONISHI HIRONAO
Daisuke Nagano
Kentaro Fujii
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