| US 7,540,090 B2 | ||
| Rotary type electric shaver | ||
| Tsuyoshi Nakano, Matsumoto (Japan) | ||
| Assigned to Izumi Products Company, Nagano (Japan) | ||
| Filed on Feb. 15, 2008, as Appl. No. 12/70,283. | ||
| Application 12/070283 is a division of application No. 11/353710, filed on Feb. 14, 2006, granted, now 7,356,929. | ||
| Claims priority of application No. 2005-036594 (JP), filed on Feb. 14, 2005. | ||
| Prior Publication US 2008/0148573 A1, Jun. 26, 2008 | ||
| Int. Cl. B26B 19/16 (2006.01) | ||
| U.S. Cl. 30—43.6 [30/346.51] | 1 Claim |
| 1. A rotary type electric shaver comprising an outer cutter frame that is provided on a shaver main body, an outer cutter
that is installed in said outer cutter frame and has hair introduction openings in its ring-shaped thin layer portion whose
upper surface forms a shaving surface, and an inner cutter that has cutter bodies which make sliding contact with a lower
surface of said thin layer portion and rotate to cut hair that entered said hair introduction openings, wherein
said hair introduction openings have a shape of slit extending in said thin layer portion in substantially a radial direction
thereof;
upper portions of two opposing side wall surfaces extending in a lengthwise direction of said hair introduction openings form
parallel planes in cross section taken substantially orthogonal to the lengthwise direction of said hair introduction openings;
and
wherein cutting edges, which are respectively at lower ends of two opposing side wall surfaces of each of said hair introduction
openings on both forefront and rearward sides with respect to a direction of rotation of said inner cutter, are formed at
an acute angle in cross section taken substantially orthogonal to said lengthwise direction of said hair introduction openings
and project towards each other.
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