US 5,398,412 AGranted

Reciprocatory dry shaver

AssigneeMatsushita Electric Works, Ltd.

InventorsMasao Tanahashi, Takeshi Shiba, Toshio Ikuta

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Abstract

A reciprocatory dry shaver has a head for mounting three elongated cutter heads, one center cutter head and two outer cutter heads extending in parallel with each other. Each cutter head comprises a holder carrying a stationary cutter and a movable cutter driven to reciprocate in shearing engagement with the stationary cutter. The head frame is mounted on a shaver housing from which a reciprocating element projects to drive the movable cutter of each cutter head. The center and outer cutter heads are floatingly supported at individual longitudinal ends by associated center and outer spring members so that each cutter head is vertically movable relative to the head frame. The center spring members are formed in one of either the head frame or the associated holder while the outer spring members are formed in the other of the head frame and the associated holders. Thus, the spring members for floatingly supporting the center and outer cutter heads can be effectively distributed to the head frame and the associated holders to enable a compact arrangement for a system of floating supporting the three parallel cutter heads within a limited space.

Claims14

Dependent claims

A reciprocatory dry shaver comprising:

a head frame mounting at least three elongated cutter heads each having a longitudinal axis and having opposed longitudinal ends spaced along said longitudinal axis, said at least three elongated cutter heads composed of at least one center cutter head and two outer cutter heads arranged on opposite sides of said at least one center cutter head with the individual longitudinal axes substantially parallel to each other, each of said two outer cutter heads and said at least one center cutter head comprising a holder carrying a stationary cutter and a movable cutter which is driven to reciprocate along said longitudinal axis in close engagement with said stationary cutter to effect hair cutting therebetween,
a shaver housing mounting said head frame and a reciprocating element projecting from said housing to drive said movable cutters of said inner and outer cutter heads;
said holder of each of said two outer cutter heads being floatingly supported from said head frame at their longitudinal ends by outer spring members and said at least one center head being floatingly supported from said head frame by an associated center spring member so that each stationary cutter is vertically movable relative to said head frame, and said center spring member being formed in one of said head frame and said associated holder while said outer spring members are formed in the other of said head frame and said associated holders.

Dependencies are inferred from the claim text.