INNER BLADE FOR ELECTRIC RAZOR - MATSUSHITA ELECTRIC WORKS LTD

Title:

INNER BLADE FOR ELECTRIC RAZOR

Document Type and Number:

WIPO Patent Application WO/2008/010431

Kind Code:

A1

Abstract:

An inner blade (5) for an electric razor having blades (30) supported by a base (20). When the inner blade (5) is reciprocated in parallel with the outer blade (10) having whisker introducing holes (11), whiskers are cut between the inner blade (5) and an outer blade (10). The blades (30) are arranged in parallel with each other, and a pair of blade edges (32) is symmetrically arranged on both sides of the upper part (31) of each blade (30). The blade edges (32) are defined by the upper surface (31) and scoop surfaces (33) tilted relative to the upper surface (31). The tip of each blade edge (32) is rounded to a shape with a curvature radius R (μm) and is formed such that the curvature radius R satisfies the relationship of R ≤ -0.2 α + 1.1 (μm), with α being the angle in degree of a scoop surface (33) relative to the upper surface (31).

Inventors:

SATO MASAAKI (JP)
KOMORI SHUNSUKE (JP)
IWASAKI JYUZAEMON (JP)
SHIBA TAKESHI (JP)

Application Number:

PCT/JP2007/063648

Publication Date:

January 24, 2008

Filing Date:

July 09, 2007

Export Citation:

Click for automatic bibliography generation Help

Assignee:

MATSUSHITA ELECTRIC WORKS LTD (JP)
SATO MASAAKI (JP)
KOMORI SHUNSUKE (JP)
IWASAKI JYUZAEMON (JP)
SHIBA TAKESHI (JP)

International Classes:

B26B19/04

Domestic Patent References:

WO2003016000A1	2003-02-27
WO2003016000A1	2003-02-27

Foreign References:

JPH10328434A	1998-12-15
JPH08196752A	1996-08-06
JPH0938349A	1997-02-10
JPS5849175A	1983-03-23
JPH06142347A	1994-05-24
JP2006199953A	2006-08-03

Other References: