| 摘要 |
A safety razor blade unit has a guard (2), a cap (3), and three parallel bla des (11, 12, 13) mounted between the guard and cap, at least one of the blades, guard and cap being movable from a non-shaving posi tion to modify a blade exposure dimension, and to attain a modified blade geometry in which the exposure of the first blade (11) is not greater than zero and the exposure of the third blade ( 13) is not less than zero. At least one of the cap (2) and guard (3) can be movable aga inst the force of a spring (20 or 21) from a non-shaving position in which all the blades between the guard and cap have their edges disposed below a plane tangential to the skin contacting surfaces of the guard and cap. The blades can be independently sprung or carried for movemen t in unison on a carrier pivotally mounted in a frame of the blade unit.
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