A hair cutting device includes a cutter having a guard moveable relative a blade carrier to vary a cutting length within a cutting length range. The cutter has an actuator moveable between first and second positions to move a follower element and the guard to vary the cutting length between two extreme length settings. The cutter is pivotable relative a housing of the cutting device between an open position and a closed position for cutting. The follower element is configured to cooperate with the actuator so that, when the cutter is in the open position with the follower element and guard in the first position, but the actuator is in the second position, pivoting movement of the cutter to the closed position causes the actuator to drive the follower element and the guard to the second position.

A blade assembly for a hair cutting apparatus includes a first blade having teeth extending along a first blade edge, and a second blade having teeth extending along a second blade edge. A distance between the first and second blade edges defines a blade gap. A yoke is coupled to the second blade and configured to convert motion of a drive into reciprocation of the second blade relative to the first blade to cut hair. A spring includes a spring base and at least one spring arm configured to reciprocate with the second blade. A guide assembly includes a guide and a spring retainer, the guide being positioned between the first blade and the second blade, and the spring retainer fixing the spring base relative to the first blade, wherein in response to moving the guide relative to the first blade, the blade gap changes.

The present disclosure relates to a blade set (16) for a hair cutting appliance (10), comprising a stationary blade (20) and a cutter blade (22), the stationary blade comprising a blade base (40), and a plurality of teeth (44) extending from the blade base in a longitudinal direction (48), wherein the teeth are arranged in a series alternating with tooth gaps (46) therebetween, the tooth gaps defining hair entry slots, wherein the teeth comprise a first side (54) arranged to cooperate with a cutter blade to cut hair and a second side (52) arranged as a skin-facing side, wherein the teeth comprise at the first side at their longitudinal extension processing edges (70, 74), and wherein the processing edges comprise smoothened edge transitions. The present disclosure further relates to a hair cutting appliance (10).

There is disclosed a hair cutting device (10) comprising a cutting unit (30), the cutting unit comprising: a blade carrier (32) carrying a cutting blade (33), the cutting blade comprising cutting teeth (34); a guard blade (40) comprising guard teeth (42); wherein the guard blade is movable along the blade carrier relative to the cutting blade within a guard length range between a first guard position corresponding to a shortest hair cutting length of the cutting unit and a second guard position corresponding to the longest hair cutting length of the cutting unit; and wherein the blade carrier comprises a stop (35) configured to prevent movement of the guard blade past the first guard position and outside of the guard length range, thereby preventing the cutting length from being below the shortest cutting length.

An apparatus is provided for releasably locking a stationary blade to a hair clipper, and includes a stationary blade with a blade opening, and a bracket configured for fixing the stationary blade to the hair clipper. Also, the bracket has a bracket opening. An actuator in the apparatus has a locking formation engageable in the openings and is operable between a first, locked position locking the stationary blade to the bracket, and a second, unlocked position releasing the stationary blade from the bracket.

A beard trimmer having a handle, a motor and a head portion. The head portion comprises at least a first long hair cutter unit for trimming hair that is provided with a first outer cutter and a first inner cutter.

An electric-powered hair trimmer for personal grooming purposes. The electric-powered hair trimmer has a removable blade assembly that connects to an elongated handle. The removable blade assembly includes an adjustment mechanism to quickly and accurately adjust cutting depth. The handle includes two-way facets along its outer surface, and a receptacle defined within its inner surface to receive a removable battery. The battery is configured to include a pivotable mounting hook for hanging the trimmer.

There is disclosed a hair cutting device kit (10) comprising a drive unit (12) for driving a detachably mountable cutting unit (30), an actuator (16), and a user-moveable control element. The cutting unit (30) has an extension mechanism configured to vary a cutting length of the cutting unit within a cutting length range. The actuator is configured to cooperate with the extension mechanism of the cutting unit to vary a cutting length of the cutting unit within a cutting length range, the actuator being moveable between a first actuator position corresponding to a first extreme cutting length of the cutting length range, and a second actuator position corresponding to a second extreme cutting length of the cutting length range. The user-moveable control element is moveable between a range of length control positions between a first control position corresponding to the first actuator position and a second control position corresponding to the second actuator position, and an off position corresponding to deactivation of the drive, wherein the off position is adjacent the first control position. The actuator is in the first actuator position when the drive is deactivated by movement of the control element to the off position. The cutting unit is biased to return the follower element to a first follower position corresponding to engagement with the actuator in the first actuator position.

A hair cutting system includes a handle defining a longitudinal axis, a strut mounted to the handle and a hair cutting blade assembly coupled to the strut. The cutting blade assembly includes a stationary blade defining cutting teeth having blade edges and a movable blade defining cutting teeth having blade edges and capable of reciprocal movement relative to the stationary blade in a horizontal direction. The movable blade and the stationary blade are movable relative to each other in a longitudinal direction to adjust a longitudinal position of the movable blade relative to the stationary blade to selectively vary a distance between the blade edges of the stationary blade and the blade edges of the movable blade. A releasable lock is configured to selectively lock and release the stationary blade and the movable blade with respect to each other in the longitudinal direction.

A blade assembly for a hair cutting apparatus includes a first blade having teeth extending along a first blade edge, and a second blade having teeth extending along a second blade edge. A distance between the first and second blade edges defines a blade gap. A yoke is coupled to the second blade and configured to convert motion of a drive into reciprocation of the second blade relative to the first blade to cut hair. A spring includes a spring base and at least one spring arm configured to reciprocate with the second blade. A guide assembly includes a guide and a spring retainer, the guide being positioned between the first blade and the second blade, and the spring retainer fixing the spring base relative to the first blade, wherein in response to moving the guide relative to the first blade, the blade gap changes.