The present disclosure relates to a method of forming a sheet-metal based double-walled stationary blade (24) for a hair cutting appliance (10), the method comprising: providing a first pre-product layer (70), providing a second pre-product layer (72) which is separate from the first pre-product layer (70), providing a guide slot (44) for a cutter (26), and bonding the first pre-product layer (70) and the second pre-product layer (72) to one another such that the pre-product layers (70, 72) are arranged to jointly receive a to-be-mounted cutter (26), wherein the first pre-product layer (70) and the second pre-product layer (72), in the bonded state, are at least partially offset from one another to provide a defined mating clearance fit for the to-be-mounted cutter (26), wherein the pre-product layers (70, 72) are bonded to one another at their longitudinal ends such that stationary blade teeth (54) are partially formed by the first pre-product layer (70) and partially formed by the second pre- product layer (72), and wherein tips (56) of the stationary blade teeth (54) are arranged adjacent to a transition zone (84) between the pre-product layers (70, 72). The present disclosure further relates to a cutting appliance and to a blade set (22) for such an appliance.

The present disclosure relates to a cutting appliance (10) and to a blade set (20) for such an appliance. The blade set (20) comprises a stationary blade (22) comprising a first wall (100) arranged to serve as a skin facing wall when in operation, a second wall (102) at least partially offset from the first wall (100), such that the first wall (100) and the second wall (102) define therebetween a guide slot (96) arranged to receive a cutter (24), at least one toothed leading edge (30) jointly formed by the first wall (100) and the second wall (102), wherein the at least one toothed leading edge (30) comprises a plurality of teeth (36), and a cutter (24) comprising a main portion (78), at least one toothed leading edge (80) protruding from the main portion (78), wherein the cutter (24) is movably arranged within the guide slot (96), wherein the cutter (22) comprises, at a bottom side thereof facing the second wall (102), an elevated spacing arrangement (140) associated with the least one toothed leading edge (80), the spacing arrangement (140) being configured for spacing a substantially flat bottom surface (136) of the at least one toothed leading edge (80) of the cutter (24) away from the second wall (102). The disclosure further relates to corresponding manufacturing methods.

A stationary blade for a blade set of a hair cutting appliance is arranged to be moved through hair in a moving direction to cut hair. The stationary blade includes: a first wall portion arranged to serve as a skin facing wall when in operation; a second wall portion at least partially offset from the first wall portion; and at least one toothed leading edge comprising a plurality of teeth and being jointly provided by the first wall portion and the second wall portion. The first wall portion and the second wall portion are connected at a frontal end of the at least one toothed leading edge to provide tips of the teeth. A blade set including the stationary blade and a moveable cutting blade are also arranged to cut hair. A method of fabricating a blade set is also described.

The present invention relates to electric shavers, handpieces of such shavers and a method of manufacturing such electric shavers. More particularly, the present invention relates to a shaver set comprising a plurality of electric shavers.

A stationary blade for a blade set of an electrically operated hair cutting appliance includes first and second walls, where each wall has a first surface, a second surface facing away from the first surface, and a laterally extending leading edge having a plurality of laterally spaced apart longitudinally extending projections. The first surfaces of the first and second walls face each other, at least at their leading edges, while corresponding projections along the leading edges of the first and second walls are mutually connected at their tips to define a plurality of generally U-shaped teeth. The first surfaces of the first and second walls are separated to define a laterally extending guide slot for insertion of a movable blade of the blade set between them. The projections of the first wall have an average thickness that is less than an average thickness of the projections of the second wall.

An inner blade of a rotary electric shaver decreases a rake angle and increases an erecting angle in a small blade, which can prevent remaining hair from appearing on one end side in a cross section of hair, and which can prevent poor shaving performance and increased sliding resistance against an outer blade. An inner blade of a rotary electric shaver includes an outer blade whose upper surface functions as an annular shaving surface having multiple hair inlets, and the inner blade having a plurality of small blades which rotate while coming into sliding contact with a lower surface of the outer blade. The small blade is formed by erecting a portion of a metal plate so that an angle of a front side in a rotation direction with respect to a plate surface of the metal plate becomes an acute angle, the front side in the rotation direction has a concave portion having a shape hollowed toward a lower end portion from an upper end surface which comes into sliding contact with the outer blade, and an upper end edge defined by the upper end surface and the concave portion functions as a blade edge.

A shaver, a shaver cutting mesh, and a process for manufacturing the shaver cutting mesh. The process for manufacturing the shaver cutting mesh does not adopt an integral drawing process, but divides the cutting mesh into two parts to be machined, and then completely combines the two parts together by adopting a welding process, so that the mesh surface part is good in uniformity, the radian of the whole mesh surface also can be ensured, the comfort degree and the cleanness in shaving are further improved, and the housing part is machined at a larger thickness (such as 0.5 mm) than that of the mesh surface part to ensure the strength of a whole mesh cover.

The present invention relates to a cutter system for an electric shaver and/or trimmer, comprising a pair of comb-like cutting elements with cooperating toothed cutting edges and movably supported relative to each other by a support element, wherein lateral ends of at least one of said cutting elements are provided with lateral protection elements having rounded and/or chamfered edge contours for soft skin engagement, wherein said lateral protection element is integrally formed in one part with the cutting element by an end portion of the cutting element bent away from a skin contact surface thereof and enveloping a gap movably receiving the other cutting element and/or enveloping the support element.

The present disclosure relates to a hair cutting appliance (10), a blade set (20) for a hair cutting appliance (10),and to an integrally formed metal-plastic composite stationary blade (22) for said blade set (20). Said stationary blade (22) may comprise a first wall portion (58) arranged to serve as a skin facing wall when in operation, a second wall portion (60) at least partially offset from the first wall portion (58), such that the first wall portion (58) and the second wall portion (60) define therebetween a guide slot arranged to receive a movable cutter blade (24), at least one toothed leading edge (30) jointly formed by the first wall portion (58) and the second wall portion (60), and a plastic component (114) comprising at least one mounting element (36), wherein the at least one toothed leading edge (30) comprises a plurality of teeth (90), wherein the first wall portion (58) and the second wall portion (60) are integrally made from a metal component (56), particularly from a sheet metal component (56), wherein the first wall portion (58) and the second wall portion (60) mutually define an inner metal shell of the stationary blade (22), and wherein the plastic component (114) is molded to the second wall portion (60). The disclosure further relates to a method for manufacturing a respective blade.

A rotary electric shaver according to the present invention includes an outer blade whose upper surface functions as annular shaving surfaces having multiple hair inlets formed therein, and an inner blade that has a small blade which rotates while coming into sliding contact with a lower surface of the outer blade. The inner blade is an integral structure using a metal material, and has a projection in which an upper surface side is a convex portion and a lower surface side is a concave portion at a center position in a radial direction. An upper end portion of an inner blade drive shaft directly engages with the concave portion so as to be disengageable therefrom.