| 摘要 |
A razor blade assembly for mounting on a handle via a pivotal connection, the assembly including a housing that carries three blade members, each having leading edges, and has a guard portion, a cap structure, and arcuate bearing surfaces below the blade carrying portion that pivotally engage shell bearing connections of the handle. The pivot axis of the razor blade assembly is located in a region defined by an imaginary boundary extending from the first leading edge to the second leading edge when both are in the unloaded position, extending upward and rearward from the second leading edge to a position slightly above the upper surface of the housing at a location in front of the third leading edge, extending along and slightly above the upper surface of the housing to a position in front of the first leading edge, extending downward and forward to a location within the guard portion below and forward of the first leading edge, and extending from the location within the guard portion upward and rearward to the first leading edge. The pivot axis is advantageously located at the secondary blade member leading edge and at least two of the blade member leading edges have sharpened cutting edges. The housing is provided with a cam surface engaged by a spring loaded cam follower on the razor handle, and the cam can be contoured to provide an at-rest position other than a position midway between the limit of forward and rearward arcuate travel.
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