RAZOR BLADE CARTRIDGE WITH GUARD RIBS

摘要

A blade cartridge (10) including one or more blades (60, 100) fixed between a platform member (20) and a cap member (120). The present invention provides a novel blade cartridge (10) including one or more protruding members, or guard ribs (140, 142, 144), positioned proximate the skin engaging edges (62, 102) of the blades (60, 100) such that a portion of the blade (60, 100) adjacent the guard ribs (140, 142, 144) has a negative exposure. The guard rib (140) preferably has an arcuate contact surface (141) and is narrow in thickness in a direction along the skin engaging edge (62, 102). Preferably a plurality of guard ribs (140, 142, 144) are evenly positioned along the blade cartridge (10). In addition to the guard ribs (140) on the platform member (20), the present invention further includes protruding members, or guard ribs (144), on the cap member (120). The guard ribs (140) on the platform member (20) are preferably aligned with and substantially continuous with the guard ribs (144) on the cap member (120). In a further embodiment, the blade cartridge (10) includes a spacer (80) separating the first blade (60) and a second blade (100). In this embodiment the spacer (80) has protruding members, or guard ribs (142), positioned proximate the skin engaging edges (62, 102) of the first and second blades (60, 100).