IP Library Granted Patent US 9,248,578
Granted Patent B2
US 9,248,578 · App. 13/049,369 · Granted Feb 2, 2016

Electric Shaver

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Quick Facts
Patent No.
US 9,248,578
App. No.
13/049,369
Granted
Feb 2, 2016
Kind
B2
Abstract

Bars 40 include a hair raising bar 45 having a hair raising portion 45 g raising body hair 75 . A cross section of the hair raising portion 45 g has a profile shape including connecting elements 80 which are connected, each connecting element being at least any one of a line segment 81 and an arc line 82.

Claims (17)

1. An electric shaver, comprising:

an outer blade comprising a plurality of longitudinal bars extending in a longitudinal direction of the outer blade and lateral bars extending in a lateral direction of the outer blade, wherein the longitudinal bars and lateral bars intersect to define blade holes;

an inner blade which is provided inside of the outer blade and moved relative to the outer blade to cut a body hair inserted into one of the blade holes, wherein

the longitudinal bars include a hair raising bar having a hair raising portion raising the body hair,

the hair raising bar includes a skin contact surface facing skin, a flat-bottom surface formed on an inner blade side, an inner side surface facing the blade holes and the inner blade, and a hair raising surface connecting the skin contact surface and the inner side surface,

a profile shape of a cross section of the hair raising surface is formed by connecting a blade hole side edge in a cross-sectional line of the skin contact surface and a skin side edge in a cross-sectional line of the inner side surface with or a plurality of connecting elements,

the plurality of connecting elements comprising at least two arc lines, and

to connect the two arc lines of the plurality of connecting elements, the two arc lines are connected with positions of the centers of curvature set different from each other,

wherein the inner side surface is inclined.

2. The electric shaver according to claim 1 , the plurality of connecting elements further comprising at least two line segments, wherein to connect two of the line segments, the cross-sectional line of the skin contact surface, and the cross-sectional line of the inner side surface, the two line segments are connected with an angle therebetween set not less than 90 degrees but less than 180 degrees.

3. The electric shaver according to claim 1 , wherein the cross-section of the hair raising surface has a profile shape in which at least one of the arc lines is positioned on the skin side.

4. The electric shaver according to claim 1 , wherein the cross-section of the hair raising surface has a profile shape in which at least one of the arc lines is positioned on the inner blade side.

5. The electric shaver according to claim 1 , wherein the cross-section of the hair raising portion has a profile shape in which a distance between connecting points of the connecting elements arranged on the skin side is longer than a distance between connecting points of the connecting elements arranged on the inner blade side.

6. The electric shaver according to claim 1 , wherein the cross-section of the hair raising surface has a profile shape in which a distance between connecting points of the connecting elements arranged on the skin side is shorter than a distance between connecting points of the connecting elements arranged on the inner blade side.

7. The electric shaver according to claim 1 , wherein a top portion is formed in the skin side of the hair raising surface.

8. The electric shaver according to claim 1 , wherein the skin contact surface of the hair raising bar is recessed downward from an outermost surface of the outer blade.

9. The electric shaver according to claim 1 , wherein the plurality of connecting elements is defined by arc lines having different curvature radii.

Assignments (4)
CORRECTIVE ASSIGNMENT TO CORRECT THE ERRONEOUSLY FILED APPLICATION NUMBERS 13/384239, 13/498734, 14/116681 AND 14/301144 PREVIOUSLY RECORDED ON REEL 034194 FRAME 0143. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Dec 24, 2020
From: PANASONIC CORPORATION
To: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Reel/Frame 056788/0362 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 10, 2014
From: PANASONIC CORPORATION
To: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Reel/Frame 034194/0143 →
MERGER Recorded Feb 13, 2012
From: PANASONIC ELECTRIC WORKS CO.,LTD.,
To: PANASONIC CORPORATION
Reel/Frame 027697/0525 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 16, 2011
From: KOBAYASHI, NOBORU; SHIMIZU, HIROAKI; KOMORI, SHUNSUKE; IKUTA, TOSHIO; IWASAKI, JYUZAEMON
To: PANASONIC ELECTRIC WORKS CO., LTD.
Reel/Frame 025968/0810 →