The present disclosed subject matter provides a razor blade head with finger slots, depressions (indentations) which extend into the razor blade head, for receiving human fingers, allowing for the razor blade head, typically attached to the handle of a razor, and therefore, the razor, to be manipulated with more precision, control, and force, than by using the handle alone.

A back shaver includes a cutter head assembly and a handle. The handle is connected to the cutter head assembly. The cutter head assembly includes cutter heads, a cutter head frame, and a connecting member. The cutter heads are embedded in a front surface of the cutter head frame. A back surface of the cutter head frame is connected to the connecting member through a rotating shaft. Elastic components are disposed on one side, distal from the handle, of the connecting member. Sliding blocks are disposed on the back surface of the cutter head frame. When the handle is operated, a first force moment is applied to the cutter head frame through the connecting member, and a free end of each of the elastic components slides along a first end of a corresponding one of the sliding blocks to a second end of the corresponding one of the sliding blocks.

A shaving blade assembly and a method of using a shaving blade assembly may include a blade, a first resilient element, and a first movable member. The first resilient element may support the blade and be arranged to urge the blade in a first direction substantially orthogonal to a cutting edge of the blade. The first movable member may selectively engage the first resilient element, in the first direction in at least one position, to impede deformation of the first resilient element.

A system and a method for adaptively releasing a lubricant or a cosmetic for a razor cartridge, a sensing unit detects a property of at least one of skin, air, water and a chemical agent in a region adjacent to the razor cartridge. A smart polymer provided on the razor cartridge is selectively responsive to a characteristic external stimulus by undergoing a physical or chemical change. A processing unit controls the release of the lubricant or the cosmetic by providing the characteristic external stimulus to cause the smart polymer to undergo a change. The processing unit compares the detected property to a reference threshold parameter and determines whether to provide the characteristic external stimulus to the smart polymer based on the comparison, thereby generating the lubricant or the cosmetic. The determined level of depletion of the smart polymer is indicated by a light, aural, or haptic indication.

A razor apparatus including a head having at least one blade member on each of a first and a second opposed side of the head. Each blade member has a straight front cutting edge. The head includes a frame defining an opening through which the cutting edges are accessible. The frame also includes a rotatable mounting element for attachment of the head to a handle. The head is rotatable around a longitudinal axis of the handle at least 180° when the rotatable mounting element is activated.

A razer includes a main body, formed by folding a sheet material. The main body includes two holding portions for the user to hold thereon. One end of the main body includes a blade securement portion and is formed of an opening hole. In addition, a blade is attached to the blade securement portion and is partially exposed out of the opening hole. Before folding, the sheet material is a single flat sheet, and after folding, it can be folded into a three-dimensional razor for use.

A razor cartridge includes a plurality of razor blades installed in one direction of a cartridge frame, and a trimmer installed in the other direction of the cartridge frame, wherein the trimmer includes a trimming blade seated in a seating groove formed in the cartridge frame, and a trimmer cap coupled to both sides of the cartridge frame so that the trimming blade is fixed.

A razor cartridge includes a plurality of razor blades installed in one direction of a cartridge frame, and a trimmer installed in the other direction of the cartridge frame, wherein the trimmer includes a trimming blade seated in a seating groove formed in the cartridge frame, and a trimmer cap coupled to both sides of the cartridge frame so that the trimming blade is fixed.

A masking foil for a shaving cartridge comprising a front side, a back side, a pair of lateral sides, at least one ribbon extending along a top side of the masking foil between the front side and the back side, and a first securing portion located at one of the pair of lateral sides. The first securing portion comprises a cross-member extending along the top side of the masking foil between the front side and the back side, and at least two securing elements extending laterally outwardly from the cross-member.

A shaving cartridge including a housing, a guard bar, a cap and cutting elements. The housing including an inner receiving portion and an inner attaching portion. The cutting elements further including a connecting structure at each end for connection of the cutting elements either on the housing or between adjacent cutting elements to thereby form a chain-like effect.