Abstract: A reciprocating-type electric shaver includes an outer blade, an oscillator that is driven to reciprocate by a motor, and an inner blade that reciprocates in cooperation with the oscillator. The oscillator includes attachment portions that are respectively attached to a main body, a movable base, both end sides of which are supported by the attachment portions via support portions having a substantially U-shape, and a cooperation portion that cooperates with the inner blade. In the respective support portions, a portion on a side connected to the attachment portion in a base portion, which is one linear portion of the U-shape, is formed in flexible oscillating pieces. The respective oscillating pieces are formed to be tilted in a direction orthogonal to a reciprocating direction of the movable base so that a lower portion side of the respective oscillating pieces is open outward in the reciprocating direction of the movable base.

Abstract: 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.

Abstract: A rotary electric shaver 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 small blade is formed so that an inner blade base plate is partially erected, and is disposed in at least two rows on a circumference close to an outer periphery and on a circumference close to an inner periphery. There is provided a movable inner blade that has a movable small blade which is vertically movable along a front end surface in a rotation direction of the small blade, with respect to the predetermined small blade.

Abstract: A rotary electric shaver includes a gear case arranged inside a head unit, a lower gear arranged in a lower portion of the gear case, coaxially having an outer blade gear for driving an outer blade and an inner blade gear for driving an inner blade, an upper gear arranged in an upper portion of the gear case to drive the outer blade, and a transmission gear having an input gear arranged in the lower portion of the gear case and to which driving power is input from the lower gear, and an output gear arranged in the upper portion of the gear case to drive the upper gear, in which the input gear and the output gear are coaxial and a rotary shaft vertically penetrates the gear case. The driving power from the upper gear drives an outer blade drive gear for driving the outer blade.

Abstract: A reciprocating-type electric shaver includes an outer blade, an oscillator that is driven to reciprocate by a motor, and an inner blade that reciprocates in cooperation with the oscillator. The oscillator includes attachment portions that are respectively attached to a main body, a movable base, both end sides of which are supported by the attachment portions via support portions having a substantially U-shape, and a cooperation portion that cooperates with the inner blade. In the respective support portions, a portion on a side connected to the attachment portion in a base portion, which is one linear portion of the U-shape, is formed in flexible oscillating pieces. The respective oscillating pieces are formed to be tilted in a direction orthogonal to a reciprocating direction of the movable base so that a lower portion side of the respective oscillating pieces is open outward in the reciprocating direction of the movable base.

Abstract: 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.

Abstract: In a rotary electric shaver according to the present invention, a plurality of blade units that include an outer blade having an annular shaving surface on an upper surface and an inner blade rotating in sliding contact with a lower surface of the outer blade are arranged in a head unit held by a main body so as to be tiltable. A main drive shaft outputting drive force of a motor accommodated in the main body and a rotary shaft of any one blade unit out of the plurality of blade units are connected by a movable joint, and a position of the movable joint serves as a tilting fulcrum for tilting the head unit.

Abstract: A rotary electric shaver 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 small blade is formed so that an inner blade base plate is partially erected, and is disposed in at least two rows on a circumference close to an outer periphery and on a circumference close to an inner periphery. There is provided a movable inner blade that has a movable small blade which is vertically movable along a front end surface in a rotation direction of the small blade, with respect to the predetermined small blade.

Abstract: A rotary electric shaver includes a gear case arranged inside a head unit, a lower gear arranged in a lower portion of the gear case, coaxially having an outer blade gear for driving an outer blade and an inner blade gear for driving an inner blade, an upper gear arranged in an upper portion of the gear case to drive the outer blade, and a transmission gear having an input gear arranged in the lower portion of the gear case and to which driving power is input from the lower gear, and an output gear arranged in the upper portion of the gear case to drive the upper gear, in which the input gear and the output gear are coaxial and a rotary shaft vertically penetrates the gear case. The driving power from the upper gear drives an outer blade drive gear for driving the outer blade.

Abstract: In a reciprocating-type electric shaver, an inner blade has an attachment groove which is open downward in a lower end of a side edge. An inner peripheral portion of the attachment groove has an engagement groove which is recessed in an in-plane direction on a wall surface of the side edge and in a longitudinal direction of the inner blade. An inner blade base has a projection at a position corresponding to the attachment groove. The projection can be elastically deformed in the in-plane direction on the wall surface of the side edge and in the longitudinal direction of the inner blade, and is formed so that an engagement claw disposed in a distal end of the projection can enter and engage with the engagement groove. The engagement claw engages with the engagement groove, thereby causing the inner blade to be fixed to the inner blade base.

Abstract: There is provided a rotary electric shaver whose outer blade can smoothly move along skin, which can reliably catch any type of hair, and which can prevent the skin from being damaged due to deep shaving. A rotary electric shaver 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 from below the annular shaving surfaces. The outer blade is configured so that the hair inlets are juxtaposed by changing the circumferential distance in a predetermined circumferential area on the annular shaving surfaces.

Abstract: A reciprocating-type electric shaver includes a head unit that is arranged so as to be capable of oscillating at least forward to and rearward from a main body. The head unit has multiple blade units whose inner blades and come into sliding contact with an inner surface of outer blades and reciprocate rightward and leftward. At least one of the blade units is configured to serve as a movable blade unit which is held by a blade frame of the head unit so as to be vertically movable from the reference position between a predetermined upper position and a predetermined lower position, and the blade frame has a positioning lever which performs positioning by moving the movable blade unit to a desired position.

Abstract: In a reciprocating-type electric shaver, an inner blade has an attachment groove which is open downward in a lower end of a side edge. An inner peripheral portion of the attachment groove has an engagement groove which is recessed in an in-plane direction on a wall surface of the side edge and in a longitudinal direction of the inner blade. An inner blade base has a projection at a position corresponding to the attachment groove. The projection can be elastically deformed in the in-plane direction on the wall surface of the side edge and in the longitudinal direction of the inner blade, and is formed so that an engagement claw disposed in a distal end of the projection can enter and engage with the engagement groove. The engagement claw engages with the engagement groove, thereby causing the inner blade to be fixed to the inner blade base.

Abstract: In a rotary electric shaver according to the present invention, a plurality of blade units that include an outer blade having an annular shaving surface on an upper surface and an inner blade rotating in sliding contact with a lower surface of the outer blade are arranged in a head unit held by a main body so as to be tiltable. A main drive shaft outputting drive force of a motor accommodated in the main body and a rotary shaft of any one blade unit out of the plurality of blade units are connected by a movable joint, and a position of the movable joint serves as a tilting fulcrum for tilting the head unit.

Abstract: A rotary electric shaver including cutter units, each having an outer cutter and an inner cutter rotating in resilient contact with the inner surface of the outer cutter, further including a shaver head which is pivotably provided on the shaver main body; an outer cutter frame attached to the shaver head to support the outer cutters in a depressible fashion; a main drive shaft for transmitting, via a first universal joint, the rotation of a motor housed in the shaver main body to a driving mechanism provided inside the shaver head; inner cutter drive shafts provided in the shaver head and rotationally driven by the driving mechanism; and second universal joints for transmitting the rotation of the inner cutter drive shafts to the inner cutters; and in this shaver the first universal joint being disposed near the pivotal center of the shaver head.

Abstract: The rotary electric shaver including; a plurality of cutter circumferential rims (24), each of which is detachable from the shaver main body (12), and separately surrounds and holds each of individual outer cutters (16), a pivotal supporting section (22) which pivotably retains the cutter circumferential rim on a pivotal axis passing the center of the outer cutter, and a detachable blind cover (66) which fills a gap between adjoining cutter circumferential rims and which is in resilient contact, from below, with a bottom edge of the cutter circumferential rim, the bottom edge being adjacent to the center of the shaver main body.

Abstract: The rotary electric shaver comprising; cutter circumferential rims (24), each of which is separately provided for each outer cutter (16) and which holds the outer cutter by surrounding the outer periphery of the outer cutter, and pivotal supporting sections (22) which pivotably and removably hold the cutter circumferential rim on a pivotal axis (C) passing the center (Q) of the outer cutter. The upper surface of the cutter circumferential rim is extended out over the pivotal supporting sections, thus increasing the width of the upper surface of the cutter circumferential rim.

Abstract: A reciprocating type electric shaver having a trimmer blade, which is substantially reverse L-shaped in cross section and installed in a shaver head of a shaver main body, wherein the trimmer blade comprises a stationary outer cutter that is bent in substantially a reverse L shape and a movable inner cutter that makes sliding contact with the inner surface of the stationary outer cutter; and in the horizontal bent part at the upper end of the outer cutter is formed with first slits that open toward the open end side and second slits that open toward the opposite bent corner side of the horizontal bent part; so that the outer cutter works together with the reciprocating inner cutter to cut the hair that enters the slits.

Abstract: A rotary electric shaver including cutter units, each having an outer cutter and an inner cutter rotating in resilient contact with the inner surface of the outer cutter, further including a shaver head which is pivotably provided on the shaver main body; an outer cutter frame attached to the shaver head to support the outer cutters in a depressible fashion; a main drive shaft for transmitting, via a first universal joint, the rotation of a motor housed in the shaver main body to a driving mechanism provided inside the shaver head; inner cutter drive shafts provided in the shaver head and rotationally driven by the driving mechanism; and second universal joints for transmitting the rotation of the inner cutter drive shafts to the inner cutters; and in this shaver the first universal joint being disposed near the pivotal center of the shaver head.