Electric shaver
AssigneeSanyo Electric Co., Ltd.
InventorsMakoto Watanabe, Nobuhisa Takao, Takashi Fujimoto
Life of this patent
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Abstract
An electric shaver is provided with arched outer blades and outer blades with slit ports opened with several transversely extended parallel slits. Both outer blades are rubbed by the inner blades along their inner faces to cut a beard. Two rows of outer blades with slit ports are mounted on both sides of the arched outer blades. The outer blades with slit ports comprise rectangular parallel blades with the upper faces not exactly planar but almost planar, parallel slits open in the upper face of the rectangular parallel blades and extend from the corner of the external side to the vertical part of the external side.
Claims46
An electric shaver apparatus comprising:
- a pair of elongated arched outer blades, each of said arched outer blades comprising a mesh cutter having plural beard cutting ports, an inner face and an outer face and being formed in an arch shape opening in a first direction, said arched outer blades having internal sides facing one another and external sides facing away from one another;
- a pair of arched inner blades comprising blade edges profiled in a shape complementary to said inner faces of said arched outer blades, respectively, said arched inner blades being movably mounted relative to said arched outer blades, respectively, such that, when said arched inner blades move relative to said arched outer blades, respectively, said blade edges rub against said inner faces of said arched outer blades;
- a pair of elongated slit port outer blades arranged parallel to and on at least one of the external sides of said arched outer blades;
- wherein each of said slit port outer blades has an inner face and an outer face and has a profile opening in said first direction, flattened at a surface facing a second direction opposite said first direction and having an external side facing away from said arched outer blades;
- wherein each of said slit port outer blades has a plurality of elongated parallel slit ports extending, in a transverse direction of said slit port outer blade, across at least part of the flattened surface, around a corner between said flattened surface and said external side of said slit port outer blade, and across at least part of said external side of said slit port outer blade;
- and
- wherein slit inner blades, comprising blade edges profiled in a shape complementary to said inner faces of said slit port outer blades, are mounted for movement relative to said slit port outer blades, respectively, such that, when said slit inner blades move relative to said slit port outer blades, respectively, said blade edges of said slit inner blades rub against said inner faces of said slit port outer blades.
Dependencies are inferred from the claim text.