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:
Apr. 09, 2002
Filed:
Jul. 13, 1999
Osamu Shibata, Tokyo, JP;
Kabushiki Kaisha Himiko, Tokyo, JP;
Abstract
A recess portion and a thick outer peripheral portion are formed in an upper surface of a bottom plate . A recess portion is formed in a lower surface of a cover . The recess portions and have configurations corresponding to a combination of a tarsal portion of a foot covering an area from a heel to substantially a center portion of a foot and a metatarsal portion of the foot covering an area from the center portion to roots of toes of the foot, respectively. A plurality of blades are integrally formed on a surface of the recess portion , extend in directions perpendicular to a longitudinal direction of the bottom plate and are slanted toward a heel portion of the bottom plate. The welded portions and of the upper surface of the bottom plate and the lower surface of the cover, which directly surround the respective recess portions and have uniform width, are welded together by a high frequency welder and fluid is sealed in a space defined by the recess portions and . Since the width of the welded portions and is uniform, the adhering strength becomes uniform, so that a water leakage can be prevented. Further, the insole or sole of shoe can massage a sole of foot while absorbing shock during walking, with reliable welding of the bottom plate and the cover.