Shaving unit with blade tensioning means

A razor blade unit comprising two elongated blade members, at least one long edge of each being constituted by a cutting edge, spacer members securing said blade members together at the opposite ends thereof, and a wedge having opposed end faces in engagement with the adjacent inner faces of said spacer members and extending between said blade members in a direction parallel with the planes of the blade members, said wedge being in compression to strain the ends of said blade members apart and maintain both of said blade members in tension.

A razor blade unit in the form of an open rectangular frame that includes an elongated blade portion and two spacer portions, one at each end of said blade portion, and thickness of each said space portion being greater than the thickness of said blade portion, at least one long edge of said blade portion being constituted by a cutting edge, the opposite ends of said blade portion being connected to said spacer portions and said blade portion being unsupported intermediate its opposite ends so that the intermediate area between said opposite ends is open and assists in the clearing of shaving debris,

• and wedge means fixed in compressive engagement within said open rectangular frame in engagement with said spacer portions to tension said cutting edge.

A shaving unit including cap and guard structure and a blade unit permanently secured between said cap and guard structure, said blade unit being in the form of an open rectangular frame and including first and second elongated blade members, one long edge of each said blade member being constituted by a cutting edge, said blade members being laterally offset with respect to each other and being connected to end portions of the frame at their opposite ends and being unsupported intermediate their opposite ends so that the intermediate area between said opposite ends is completely open and assists in the clearing of shaving debris, and wedge means fixed in compressive engagement within said open rectangular frame and engaging said end portions of said frame to strain the ends of said frame apart and maintain both of said cutting edges in tension.

A shaving unit including cap and guard structure and a blade unit permanently secured between said cap and guard structure, said blade unit comprising two elongated blade members, at least one long edge of each being constituted by a cutting edge, spacer members securing said blade members together at the opposite ends thereof, and a wedge having opposed end faces in engagement with the adjacent inner faces of said spacer members and extending in a direction perpendicular to the planes of said blade members, said wedge being in compression to strain the ends of said blade members apart and maintain both of said blade members in tension.

A shaving unit including cap and guard structure and a blade unit permanently secured between said cap and guard structure, said blade unit comprising two elongated blade members, at least one long edge of each being constituted by a cutting edge, spacer members securing said blade members together at the opposite ends thereof, and a wedge having opposed end faces in engagement with the adjacent inner faces of said spacer members and extending between said blade members in a direction parallel with the planes of the blade members, said wedge being in compression to strain the ends of said blade members apart and maintain both of said blade members in tension.