An electric shaver, comprising an elongated housing receiving an electric motor and/or an electric power source, a working head attached to said housing, wherein said housing includes an elongated base element and a cover element closing said base element and surrounding a connection connecting said electric motor and/or said electric power source to said working head, wherein said cover element is sealed to said base element and/or to said connection by at least one seal.

In a hair grooming appliance, a head is detachably mountable on a handle having a motor and a receptacle configured to receive at least a portion of the head therein when the head is mounted on the handle with the head in operative connection with the motor. The handle has a first attachment member positioned at least partially within the receptacle and arranged to detachably engage the head when the at least a portion of the head is inserted into the receptacle and a second attachment member positioned at least partially within the receptacle and arranged to engage the head when the at least a portion of the head is inserted into the receptacle. The second attachment member is a different type of attachment member than the first attachment member. In a particular embodiment, the hair grooming appliance is a shaver.

In a hair grooming appliance, a head is detachably mountable on a handle having a motor and a receptacle configured to receive at least a portion of the head therein when the head is mounted on the handle with the head in operative connection with the motor. The handle has a first attachment member positioned at least partially within the receptacle and arranged to detachably engage the head when the at least a portion of the head is inserted into the receptacle and a second attachment member positioned at least partially within the receptacle and arranged to engage the head when the at least a portion of the head is inserted into the receptacle. The second attachment member is a different type of attachment member than the first attachment member. In a particular embodiment, the hair grooming appliance is a shaver.

The present invention relates to a hair clipping device (10) which comprises a housing (14), a cutting assembly (16) including a stationary cutting blade (32) and a moveable cutting blade (34), a drive arrangement (42) for driving the moveable cutting blade (34) relative to the stationary cutting blade (32) in an oscillatory movement along a first axis (40), a comb support element (45) for removably attaching a comb attachment (12) with a plurality of comb teeth (50), and an adjustment unit (58) for adjusting the position of the comb attachment (12) relative to the cutting assembly (16), when the comb attachment (12) is attached to the comb support element (45), wherein the adjustment unit (58) is configured to increase a distance between the comb attachment (12) and the cutting assembly (16) during an extension movement of the adjustment unit (58), and to decrease the distance between the comb attachment (12) and the cutting assembly (16) during a retraction movement of the adjustment unit (58). The hair clipping device (10) further comprises an end stop element (74) which is configured to prevent a movement of the comb attachment (12) towards the cutting assembly (16) during the retraction movement when a minimal distance between the comb attachment (12) and the cutting assembly (16) is reached by contacting the comb support element (45). The end stop element (74) is further configured to cause a coupling of the adjustment unit (58) with one of the stationary cutting blade (32) and the moveable cutting blade (34) if the retraction movement of the adjustment unit (58) is continued after the minimal distance between the comb attachment (12) and the cutting assembly (16) is reached after a contact of the end stop element (74) with the comb support element (45). Said coupling enables an adjustment of the position of the moveable cutting blade (34) relative to the stationary cutting blade (32) along a second axis (56) transverse to the first axis (40) by means of the adjustment unit (58).

The present invention relates to a hair clipping device (10) which comprises a housing (14), a cutting assembly (16) including a stationary cutting blade (32) and a moveable cutting blade (34), a drive arrangement (42) for driving the moveable cutting blade (34) relative to the stationary cutting blade (32) in an oscillatory movement along a first axis (40), a comb support element (45) for removably attaching a comb attachment (12) with a plurality of comb teeth (50), and an adjustment unit (58) for adjusting the position of the comb attachment (12) relative to the cutting assembly (16), when the comb attachment (12) is attached to the comb support element (45), wherein the adjustment unit (58) is configured to increase a distance between the comb attachment (12) and the cutting assembly (16) during an extension movement of the adjustment unit (58), and to decrease the distance between the comb attachment (12) and the cutting assembly (16) during a retraction movement of the adjustment unit (58). The hair clipping device (10) further comprises an end stop element (74) which is configured to prevent a movement of the comb attachment (12) towards the cutting assembly (16) during the retraction movement when a minimal distance between the comb attachment (12) and the cutting assembly (16) is reached by contacting the comb support element (45). The end stop element (74) is further configured to cause a coupling of the adjustment unit (58) with one of the stationary cutting blade (32) and the moveable cutting blade (34) if the retraction movement of the adjustment unit (58) is continued after the minimal distance between the comb attachment (12) and the cutting assembly (16) is reached after a contact of the end stop element (74) with the comb support element (45). Said coupling enables an adjustment of the position of the moveable cutting blade (34) relative to the stationary cutting blade (32) along a second axis (56) transverse to the first axis (40) by means of the adjustment unit (58).

An electrically driven device provided with a housing, an electric motor with a drive shaft having a first rotary axis and a drive pin connected to the drive shaft eccentrically with respect to the rotary axis, and a driven shaft mounted in the housing for performing a pivoting is disclosed. The driven shaft is indirectly coupled to the drive shaft by means of a gear mechanism converting a rotary motion of the drive shaft into a reciprocating pivoting motion of the driven shaft. The gear mechanism comprises one intermediate shaft having a second rotary axis extending in the longitudinal direction of the intermediate shaft and at least one crank arm coupled to the drive pin. The crank arm is pivotably mounted in the housing and is coupled to the intermediate shaft thereby converting a rotary motion of the drive shaft into a reciprocating pivoting of the intermediate shaft about the second rotary axis. The intermediate shaft is coupled to the at least one driven shaft by means of a pivotable bridge such that the intermediate shaft is offset with respect to the at least one driven shaft.

An electrically driven device provided with a housing, an electric motor with a drive shaft having a first rotary axis and a drive pin connected to the drive shaft eccentrically with respect to the rotary axis, and a driven shaft mounted in the housing for performing a pivoting is disclosed. The driven shaft is indirectly coupled to the drive shaft by means of a gear mechanism converting a rotary motion of the drive shaft into a reciprocating pivoting motion of the driven shaft. The gear mechanism comprises one intermediate shaft having a second rotary axis extending in the longitudinal direction of the intermediate shaft and at least one crank arm coupled to the drive pin. The crank arm is pivotably mounted in the housing and is coupled to the intermediate shaft thereby converting a rotary motion of the drive shaft into a reciprocating pivoting of the intermediate shaft about the second rotary axis. The intermediate shaft is coupled to the at least one driven shaft by means of a pivotable bridge such that the intermediate shaft is offset with respect to the at least one driven shaft.

This electric shaver has outer blades, inner blades, an inner-blade joint component, and skin-entry prevention parts. The outer blades have outer-blade holes. The inner blades have main inner-blade walls, multiple blade pieces, inner-blade holes, and internal inner-blade spaces. The inner blades move back and forth relative to the outer blades so as to cut hair that has entered through the outer-blade holes. The main inner-blade walls are connected to the inner-blade joint component. The internal inner-blade spaces are bounded by the main inner-blade walls and the multiple blade pieces. The skin-entry prevention parts are located inside the internal inner-blade spaces, at positions that correspond to the inner-blade holes, and are structured so as to contact skin that has entered the internal inner-blade spaces via the inter-blade holes.

This electric shaver has outer blades, inner blades, an inner-blade joint component, and skin-entry prevention parts. The outer blades have outer-blade holes. The inner blades have main inner-blade walls, multiple blade pieces, inner-blade holes, and internal inner-blade spaces. The inner blades move back and forth relative to the outer blades so as to cut hair that has entered through the outer-blade holes. The main inner-blade walls are connected to the inner-blade joint component. The internal inner-blade spaces are bounded by the main inner-blade walls and the multiple blade pieces. The skin-entry prevention parts are located inside the internal inner-blade spaces, at positions that correspond to the inner-blade holes, and are structured so as to contact skin that has entered the internal inner-blade spaces via the inter-blade holes.

A sandwich-structured cutter and a hair trimmer, the cutter including two fixed blades, each of which has a row of teeth at the front end, and a movable blade, which is sandwiched between the two fixed blades, can reciprocate relative to the two fixed blades in the longitudinal direction, and is an integrated blade. The movable blade has a row of teeth at the front end, the front ends of the teeth of the movable blade do not protrude from the front ends of the teeth of the fixed blades, and each tooth of the movable blade has a quadrangular cross-section shape, which includes parallel first pair sides and second pair sides forming four acute angles with the first pair sides. The cutter and the hair trimmer can lower the probability that the user gets injured and the cutting efficiency is high.