Abstract: A shaver includes a shaving unit having e.g., three shaving elements. Each shaving element accommodates a cutter member for cutting off hairs. Each shaving element further accommodates a gear wheel which is part of a transmission for coupling a drive shaft for driving the cutter member to an output shaft of a motor of the shaver. A top side of a space where the gear wheel is located is covered by a partition, where only the drive shaft extends through this partition. Each shaving element can be individually opened by removing a top portion of the shaving element, including the cutter member, from a base portion of the shaving element where the gear wheel, the drive shaft and the partition are located. An opening system may be provided to open all the shaving elements in one action by reversal of the direction of rotation of the output shaft, for example.

Abstract: A shaving device comprises a head structure (2) and a base structure (4). The head structure (2) is configured to retain and support at least one shaving head (30A, 30B, 30C). The head structure (2) is releasably retainable on the base structure (4). The base structure (4) is free of support elements in an area of an outer circumference of the head structure (2) such that the head structure (2), when coupled to the base structure (4), is not supported in the area of its outer circumference. The head structure (2), when coupled to the base structure (4), is substantially only retained on the base structure (4) by a retaining force provided by a retaining structure of the base structure (4).

Abstract: A grinding head of a grinder is provided with a knife assembly that includes a knife holder with a number of arms, each having a knife insert slot, for receiving a matching number of knife inserts. The knife inserts have a blade or cutting edge and a bottom edge. The bottom edge, rather than being a straight edge, is shaped to define a pair of bearing portions that fit within the slot of the knife holder arm and allow the knife insert to be firmly retained in the slot. A recessed area is located between the bearing portions. The recessed area accommodates any imperfections in the floor of the insert slot, and provides a void area within which any material contained within the slot can be received when the knife insert is engaged within the slot.

Abstract: An inner cutter unit for a rotary shaver includes cutter blades arranged at different radii from a rotation axis of the unit. Depending on their respective positions within the unit, the respective cutter blades may be provided with different wedge angles and/or different bending resistance.

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 shaving apparatus has one or more shaving heads (5) with a shaving surface (9) for contacting the skin during shaving and at least one cutter (4) that is moveable behind the shaving surface (9). A drive structure (3) including a motor (2) and coupled to the cutter or cutters (4) for driving the movement of the cutter or cutters is carried by a housing (1) containing the motor (2) of the drive structure. A shell structure (12) envelops at least a portion of the housing (1) behind the shaving head or heads (5) and is mounted to the housing (1).

Abstract: Shaving apparatus having at least one cutting unit with an external cutting member and a movable internal cutting member. An energy-dissipating system is provided between mutually movable parts of the internal or an external cutting member to reduce the bouncing effect between the internal and external cutting member after cutting a hair. Such an energy-dissipating system may for example be an element with visco-elastic properties.

Abstract: A trimmer/edger/designer that has different size circular razor pads that rotates the cutting apparatus inside the razor-blade safety guard, at the head of the trimmer. A small razor pad that is capable of getting into tight complicated areas of the face easier. The trimmer/edger/designer has more agility to move around the curves and indentations on the face while keeping the parts of the beard, mustache and around the ear intact.

Abstract: A cutter member for a rotary shaver includes a number of cutters arranged in at least two rings around a central axis, and a number of upwardly bent arms connecting the cutters to the central base. The rings are formed by bending some of the arms more outward and/or inward than others. Further, the cutter member may be made by consecutively cutting a blank of sheet material so as to have a number of arms with cutters and by bending some of the arms more outward and/or inward than others, so as to arrange the cutters in the at least two rings.

Abstract: A shaving unit for an electric shaver which comprises an outer cutter and an inner cutter associated to that outer cutter. The cutters are mounted so as to be movable relative to each other and adapted to be set in a relative motion by a drive mechanism. The inner cutter provides a plurality of cutting edges and abuts with its outer face on the inner face of the outer cutter. The outer cutter provides a plurality of teeth equipped with cutting edges. The outer cutter provides two comb elements which are disposed opposite one another and which extend according to the direction of the relative motion. The two comb elements are aligned with respect to one another such that the tips of the teeth of the first comb element are facing the tips of the teeth of the second comb element, the tips of the teeth spaced from one another.

Abstract: A Motorized shaving apparatus head and motorized shaving apparatus incorporating the same. In one embodiment, the invention is a shaving apparatus comprising: an elongated handle having a longitudinal axis; a power source; a head coupled to a distal end of the elongated handle, the head having a working surface with a longitudinal width of 40-44 mm and a transverse width of 14-16 mm; the working surface comprising a fixed blade having a cutting edge; a rotary cutter having cutting edges disposed within the head, the cutting edges of the rotary cutter positioned adjacent the cutting edge of the fixed blade so that a user's hairs are sheared between the cutting edge of the fixed blade and the cutting edges of the rotary cutter when the rotary cutter is rotating; and a motor operably coupled to the rotary cutter to rotate the rotary cutter about axis.

Abstract: A shaving head (3) comprises at least one cutting unit (4) in which an external cutting member (5) which has a function in contacting skin to be subjected to a shaving action is arranged, and which is suspended relative to a holder (8) of the shaving head (3) through suspension means. In particular, the suspension means comprise at least two pivot constructions, wherein one pivot construction enables a member (9) of the suspension means to be pivotable relative to the holder (8), and wherein another pivot construction enables the external cutting member (5) to be pivotable relative to the suspension member (9) as mentioned. Furthermore, a pivoting stiffness of a connection of the latter pivot construction is lower than a pivoting stiffness of the first pivot construction. In this way, good contour following performance is obtained at two levels, in both relatively small and relatively large curvature changing areas.

Abstract: A electric razor foil assembly comprises flexible outer and inner foils (1, 2) supported by a structure (14) that is deformable to permit the foils to flex to follow concave or convex curvatures. The support structure includes two suspension members (22) supporting the foils along the respective side edges, and each support member (22) has several support elements (24) interconnected by hinges (25) and in sliding cooperation with the foils. The deformation of the suspension members is guided by guide plates located adjacent the suspension members. The foils are urged into cooperation by spring members (30) and the inner foil (2) is reciprocated by a drive arrangement including a flexible drive plate (36) disposed between the spring members (30) and the inner foil (2).

Abstract: A dry shaver unit includes a housing and a cutter blade assembly mounted in the housing. The cutter blade assembly includes a cutter blade and cooperating shear blade arrangement. The thickness of the shear blade varies over its surface, such that the spacing between a portion of the skin engaging surface of the shear blade and the opposite face thereof is increased as compared with the spacing required to achieve a “close shave”. The cutter blade assembly is mounted in the housing such that a plurality of portions of the shear blade having different thicknesses are simultaneously available for application to a surface to be shaved.

Abstract: A rotary shaving head having a one-piece cup-shaped metal body including a comb portion. A plurality of openings in the comb portion are defined by opposed sidewalls, the intersection of at least one sidewall of at least one of the openings with an inner surface of the comb portion defining a cutting edge having a positive rake angle. A rotary shaving head manufacturing method includes the steps of etching a set of openings corresponding to a shaving head blank into an elongate flat metal strip, forming the blank into a cup-shaped unfinished shaving head, and removing material from the inner surface of the comb portion of the unfinished shaving head.

Abstract: A motorized shaving apparatus head and motorized shaving apparatus incorporating the same. In one embodiment, the invention is a shaving apparatus head comprising: a rotary cutter comprising a cylindrical body having an outer surface and an inner surface forming a cavity, and a plurality of spaced-apart cutting edges extending from the outer surface of the cylindrical body; an electric motor located within the cavity and operably coupled to the rotary cutter to rotate the rotary cutter about an axis; and a fixed blade having a cutting edge, the fixed blade mounted adjacent the rotary cutter so that a user's hairs are sheared between the cutting edge of the fixed blade and the cutting edges of the rotary cutter when the rotary cutter is rotating.

Abstract: A rotary electric shaver provided with a plurality of cutter units, each of which has an outer cutter (72) and an inner cutter (84), which rotates while elastically contacting the outer cutter from below. The shaver comprising: a plurality of outer cutter assemblies (70), each of which is made integral with a cutter circumferential rim (74) having the outer cutter of each cutter unit secured thereto and which is movably retained in a mounting port formed in the cutter frame (66), a pushup plate (92) which contacts the outer cutter assembly from below to push up the outer cutter assembly, a cutter retaining plate (90) which is retained by the cutter frame and which is positioned below the pushup plate, and an outer cutter float spring (94) which is compressively interposed between the cutter retaining plate and the pushup plate to impart an upward return tendency to the pushup plate.

Abstract: A motorized shaving apparatus head and motorized shaving apparatus incorporating the same. In one embodiment, the invention is a shaving apparatus head comprising: a rotary cutter comprising a cylindrical body having an outer surface and an inner surface forming a cavity, and a plurality of spaced-apart cutting edges extending from the outer surface of the cylindrical body; an electric motor located within the cavity and operably coupled to the rotary cutter to rotate the rotary cutter about an axis; and a fixed blade having a cutting edge, the fixed blade mounted adjacent the rotary cutter so that a user's hairs are sheared between the cutting edge of the fixed blade and the cutting edges of the rotary cutter when the rotary cutter is rotating.

Abstract: A shaving apparatus has at least one cutting unit (3) having an outer shaving surface (7) for contacting the skin, interrupted by hair entry apertures (8), an internal cutter (5) which is drivable for movement along the hair entry apertures (8) for cutting off hairs projecting through the hair entry apertures (8). A suspension member (6) via which the external cutter is suspended relative to the holder (2) is tiltable relative to the holder (2) about a tilting axis (17) located more closely to a first peripheral portion (18) of the shaving surface (7) than to a second peripheral portion (19) of the shaving surface (7) opposite to said first peripheral portion (18) of said shaving surface (7).

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: Provided is an insert type blade assembly of a rotation drum type electric razor, and the insert type blade assembly of the rotation drum type electric razor which includes a main body 10 that has an ON/OFF switch 12 at a front surface thereof; a blade supporting means 20 that is coupled to an upper side of the main body 10 so as to receive a motor 22 driven by the ON/OFF switch 12; a power transmitting means 30 that is downwardly disposed at a side surface of the blade supporting means 20 and provided with a plurality of gears coupled to the motor 22 so as to transmit power; a plurality of blade assemblies 40 that is rotated at a high speed so as to cut body hair by the power transmitted from the power transmitting means 30 and respectively disposed at an upper portion of the blade supporting means 20; a trimmer assembly 50 that is coupled to a lower side of the blade supporting means 20 and provided with has a trimmer disposed at a rear side of the main body 10 so as to be reciprocated left and right by dri

Abstract: A method for forming at least one opening in a receptacle comprises the steps of providing a receptacle having a cover with an exterior surface and an interior surface covering a cavity. A cutting mechanism is also provided having at least one blade. The cover is pierced with the blade, and the blade is moved through the cover to cut a portion of the cover and create an opening in the cover to provide access into the cavity. Further, the cut portion curls on top of the exterior surface as the opening is created.

Abstract: A rotary electric shaver including a cutter unit 16 for holding an outer cutter 14 in an outer cutter frame 18 mounted on the shaver main body 10 and for rotationally driving an inner cutter 40 installed inside the outer cutter 14 by a rotational drive shaft 26 while pressing the inner cutter 40 elastically toward the outer cutter 14; and the shaver further including a swivel case 48 which swivels freely and moves up and down freely with the outer cutter 14, a movable panel 92 for pushing this swivel case 48 upward with a return spring 70 in between, and a push-up mechanism 94 for changing the height level (position) of the movable panel 92, so that the push-up force on the outer cutter 14 from the inner cutter side is controllable by changing the height level (position) of the movable panel 92 by the push-up mechanism 94.

Abstract: A rotary type electric shaver with an outer cutter frame provided on a shaver main body. An outer cutter installed in this outer cutter frame and having its shaving surface on the upper surface of a ring-shaped thin layer portion. An inner cutter 16 having a cutter body that rotates and makes sliding contact from below with the lower surface of the outer cutter 14, wherein a thin layer portion 28 is formed in a substantially arc shape that is convex upward in a radial and vertical cross section that includes a center axis line which is the rotational center of the inner cutter. The thickness of the thin layer portion near the apex of the upward convex is smallest at the apex and gradually becomes thicker as distance increases away from the apex.

Abstract: The invention relates to a method of manufacturing a cutting member (6) of a shaver (1). The method comprises the steps of providing a plate-shaped carrier (10), cutting at least one cutting element (9a, 9b) free from the carrier except for a residual connection between a base (15, 23) of the cutting element and the carrier, and bending the cutting element relative to the carrier. According to the invention the steps of cutting free and bending are performed simultaneously using a tool (11) having a combined punching and bending effect. By using such a tool the action of cutting free is obtained by a tearing process which does not lead to a free space and a loss of material between the cutting element (9a, 9b) and the carrier (10). As a result the strength of the carrier is not reduced by such a free space or loss of material.

Abstract: A shaving apparatus includes at least one cutting unit having an inner cutter rotationally drivable with respect to an outer cutter by driving shaft of a driving device. The driving shaft exerts a prestress force on the inner cutter in the direction of the outer cutter. During cutting of a hair, the hair exerts a cutting force on the inner cutter directed opposite the driving force. The driving shaft bears axially on the outer cutter via at least one driving surface of a coupling element which is rotationally drivable. The inner cutter includes at least one driven surface for cooperating with the driving surface for exerting the driving force. The direction of the driving force is substantially perpendicular to the driving surface and the driven surface.

Abstract: In a shaving apparatus (1) with a housing (2) and with a short-hair cutting device (30) projecting out of housing (2) and with a long-hair cutting device (36, 37) projecting out of housing (2), a common carrying device (45) is provided for the cutting devices (30, 36, 37), wherein the carrying device (45) is adjustable for height relative to the housing (2), so that all the cutting devices (30, 36, 37) can be adjusted for height together, and wherein there is a drive connection to a motor (16) of the shaving apparatus (1) in each operating position of the cutting devices (30, 36, 37) and consequently all the cutting devices (30, 36, 37) are drivable in each operating position of the cutting devices (30, 36, 37).

Abstract: A rotary electric shaver including a disc-shaped outer cutter 10, which is mounted in the upper part of a shaver main body housing therein a motor and has ring-shaped tracks 18 on the under (inner) surface thereof, and an inner cutter 12A, which has cutter blades 120 that elastically contact the ring-shaped tracks 18 of the outer cutter 10 from below and is rotated by the motor; and in this shaver, the inner cutter 12A has vibration elements 132 that travel in the ring-shaped tracks 18 and have a smaller spring constant, compared to the cutter blade 120, in the direction same as and opposite from the direction in which the cutter blades travel, and the vibration elements 132 vibrate and produce sound when, during shaving, they strike stoppers 134 provided near the vibration elements 132.

Abstract: A shaving apparatus has at least one cutting unit (3) having an outer shaving surface (7) for contacting the skin, interrupted by hair entry apertures (8), an internal cutter (5) which is drivable for movement along the hair entry apertures (8) for cutting off hairs projecting through the hair entry apertures (8). A suspension member (6) via which the external cutter is suspended relative to the holder (2) is tillable relative to the holder (2) about a tilting axis (17) located more closely to a first peripheral portion (18) of the shaving surface (7) than to a second peripheral portion (19) of the shaving surface (7) opposite to said first peripheral portion (18) of said shaving surface (7).

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: 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: A toroidal type stepless speed changer including input and output disks (10) and (12), power rollers (20) provided between the disks with supporting shafts (28) thereof outwardly protruding, a single movable ring (30) with which the outer ends of the power roller supporting shafts (28) are engaged, the single movable ring being movable in the direction of the disk center shaft (14) with turning thereof being restricted, and a single adjustment belt (48) capable of making reciprocal motion in its turning (circumferential) direction so as to move the movable ring (30) along to disk center shaft. By the movement of the movable ring (30) in the disk center shaft direction that is caused by the reciprocal motion of the adjustment belt (48), the inclination of all the power roller supporting shaft is varied, thus changing the rotational speed between the input and output disks.

Abstract: A rotary electric shaver including a substantially disc-shaped outer cutter 18 having hair introduction openings and held in the upper part of the shaver main body 50 housing therein a motor, and an inner cutter that, while elastically contacting the inner surface of the outer cutter 18, is rotationally driven by the motor; and the shaver further including an outer cutter frame 14A provided on the shaver main body 50, and a skin protection rim 16 that is interposed between the outer cutter frame 14A and the outer cutter 18 to hold the outer cutter 18 and is elastically provided so as to be depressible with respect to the outer cutter frame 14A.

Abstract: A rotary shaver including an outer cutter frame (18) provided on a shaver main body (10), an outer cutter (14) that is installed in this outer cutter frame (18) and has ring-shaped thin layer portions (28a, 28b) whose upper surfaces are the shaving surfaces, and an inner cutter (16) that has cutter bodies (38) that rotates and make sliding contact with the lower surface of the thin layer portions of the outer cutter to cut hair that entered hair introduction openings (30a, 30b) formed in the thin layer portions; wherein the hair introduction openings have a slit shape extending in substantially the radial direction of the thin layer portions, and the cutting edge angle (p, q) at the lower end(s) of the side wall surface(s) of the hair introduction openings (30a, 30b) defined by the ribs (32a, 32b) is an acute angle.

Abstract: A shaving apparatus has plurality of shaving heads, each with a rotatable cutting member (5) associated with and rotatable relative to a shear plate (3). For driving the cutting members (5), a plurality of drive units (9) is provided, each of said units extending at least from drive rim (7) engaged for driving the drive unit to a coupling end (27) coupled to one of the cutting members (5) for transmitting a rotation of the drive unit (9) to the cutting member (5). The drive rims (7) of the drive units (9) are suspended for rotation about axes of rotation (20) that are oriented at angles relative to each other and diverge from each other in a direction from the drive rim (7) to the coupling (27).

Abstract: Electric rotary shaver including an outer cutter 14, in which a ring-shaped groove 26 is formed in the top portion and two ring-shaped inner cutter running tracks 34 are formed in the interior surface, and an inner cutter 16, in which a plurality of cutter blades 40 are provided that make sliding contact with the inner cutter running tracks 34 of the outer cutter 14. A sliding surface where the cutter blades of the inner cutter make a sliding contact with the inner cutter running track of the outer cutter is set on a plane C perpendicular to the center axis line (A), and the thickness of the top portion of the outer cutter 14 is such that the portions near the ring-shaped groove 26 are made thinner or thicker than the other part of the top portion on at least a part of the circumference.

Abstract: An electric shaver apparatus and method are disclosed which incorporate an actively cooled surface to contact and cool the skin of a user to enhance the comfort of shaving. The actively cooled surface is provided by a thermoelectric cooler with a passive or active heat sink in the various embodiments.

Abstract: An electric shaver including an outer cutter holder (30) that holds the outer cutters (24), an inner cutter holder (42) which has a plurality of projections (50) that pass through the outer cutter holder (30) and press the outer circumferential edges of the outer cutters (24) and which holds the inner cutters (36) so that the inner cutters are rotatable, a single shaft member (62) which passes through the inner cutter holder (42) and outer cutter holder (30) and whose tip end is positioned in the cutter frame (20) so as to be located between the mutually adjacent outer cutters (24), and a cutter retaining assembly (60), which the shaft member (62) passes through and is detachably anchored to the cutter frame (20) and further elastically presses the inner cutter holder (42) toward the outer cutters.

Abstract: The invention relates to an inner cutter unit (5) for a rotary shaver (1), comprising a plurality of cutter blades (16, 17, 18), arranged at different radii (r1, r2, r3) from a rotation axis (C) of said unit (5). Depending on their respective positions within the unit (5), the respective cutter blades (16, 17, 18) may be provided with different wedge angles (?1,2,3) and/or different bending resistance. The invention furthermore relates to a method for making such an inner cutter unit, a shaver head provided with an inner cutter unit and an outer cutter unit, wherein the design of the outer unit is adapted to that of the inner unit. The invention furthermore relates to a rotary shaver provided with at least one inner cutter unit according to the invention.

Abstract: Shaving apparatus having a housing (1) and a shaving head holder (2) that is pivotably connected to the housing (1) and can pivot from an open position to a closed position against the force of a spring (8), and having latching means (10-13) for latching the shaving head holder to, and unlatching the shaving head holder from, the housing in a closed position of said holder. To improve the skin contour-following properties during shaving, the shaving head holder (2) in its closed position can be depressed against the force of a spring (8).

Abstract: Shaving apparatus having at least one cutting unit (3) with an external cutting member (4) and a rotatable internal cutting member (6) each having cooperating cutting edges (8,9) forming bearing surfaces of a first bearing, said external and internal cutting member (4,6) having a second bearing with bearing surfaces (14,17). To minimize the friction between the cutting edges (8,9), means (13) with visco-elastic properties are provided between the two bearings, so that during operation the distance between the bearing surfaces (8,9) of the first bearing adjusts oneself to the distance between the bearing surfaces (14,17) of the second bearing. During cutting of hairs the means with visco-elastic properties behave as a stiff element whereas during periods in which no hairs are cut these means behave relatively soft so that the cutting gaps between the cutting edges are closed.

Abstract: An inner cutter including a circular hub unit, which is coupled to a rotary drive shaft, and a ring-shaped inner cutter main unit, which is secured to the hub unit and is formed with cutter blades standing up from their lower portions with the upper parts sliding against the inside lower surface of the outer cutter; and the cutter blades being formed with reduced cross-sectional portions that have a dimension in the radial direction of circular hub unit (or of the ring-shaped inner cutter main body) made smaller than a dimension in the radial direction of blade tip ends.

Abstract: An electric rotary shaver, in which the cutter head that includes outer and inner cutters is washable while the inner cutter(s) is being rotationally driven, including agitating vanes that agitate the liquid in which the cutter head is immersed and discharge shaving debris out of the cutter head by generating a flow of the liquid. The agitating vanes are provided on a drive shaft(s) that engages with and rotates the inner cutter(s) and rotationally drives the inner cutter(s).

Abstract: A main body of an inner blade is inserted into an inner blade insertion hole of an inner blade frame such that the main body can extend and retreat, a tip end cutting edge is pushed by a spring such that it comes into contact with an inner peripheral surface of a slit outer blade, the main body of the inner blade projecting outward from the inner blade insertion hole is bent rearward in a rotational direction, and the cutting edge of the inner blade is located rearward of the main body in the inner blade insertion hole in the rotational direction. With this configuration, the cutting edge does not fall forward in the rotational direction, and no gap is generated between the cutting edge and the inner peripheral surface of the slit outer blade.

Abstract: A rotary shaver including an outer cutter frame (18) provided on a shaver main body (10), an outer cutter (14) that is installed in this outer cutter frame (18) and has ring-shaped thin layer portions (28a, 28b) whose upper surfaces are the shaving surfaces, and an inner cutter (16) that has cutter bodies (38) that rotates and make sliding contact with the lower surface of the thin layer portions of the outer cutter to cut hair that entered hair introduction openings (30a, 30b) formed in the thin layer portions; wherein the hair introduction openings have a slit shape extending in substantially the radial direction of the thin layer portions, and the cutting edge angle (p, q) at the lower end(s) of the side wall surface(s) of the hair introduction openings (30a, 30b) defined by the ribs (32a, 32b) is an acute angle.

Abstract: Disclosed is a net-rotating type electric razor(10) wherein rotary safety nets(12) are fitted into openings(111) of a cover(11), such that rotary blades(14) are rotated at a high speed by a drive motor(100) while being protected by the rotary safety nets. The electric razor comprises a net rotating vibrator(13) formed with a speed reduction gear(132), a first driving gear(15) and first driven gears(151) engaged with the speed reduction gear of the net rotating vibrator, a second driving gear(16) connected to the first driving gear(15) while being engaged with second driven gears(161), upper-side vibrators(17) mounted to the second driven gears(161), a third driving gear(18) connected to the second driving gear(16) while being engaged with third driven gears(181), and lower-side vibrators(19) mounted to the third driven gears(181).

Abstract: A rotary shaver including an outer cutter frame (18) provided on a shaver main body (10), an outer cutter (14) that is installed in this outer cutter frame (18) and has ring-shaped thin layer portions (28a, 28b) whose upper surfaces are the shaving surfaces, and an inner cutter (16) that has cutter bodies (38) that rotates and make sliding contact with the lower surface of the thin layer portions of the outer cutter to cut hair that entered hair introduction openings (30a, 30b) formed in the thin layer portions; wherein the hair introduction openings have a slit shape extending in substantially the radial direction of the thin layer portions, and the cutting edge angle (p, q) at the lower end(s) of the side wall surface(s) of the hair introduction openings (30a, 30b) defined by the ribs (32a, 32b) is an acute angle.

Abstract: The present invention relates to a cutting blade assembly of a rotation drum type electric razor, it includes a razor body on which an on/off switch is formed and in which a driving motor operated by the on/off switch is embedded, a driving support that is formed uprightly on the left and right side of the razor body faced each other and on the upper end of which a plurality of connection holes is formed, a power transmission means that is provided between the driving support and is connected to the driving motor to transmit a driving force, a cutting blade assembly that is shaft-connected to the connection hole of the driving support and to which a driving force is transmitted from the power transmission means to rotate at a high speed, and is provided with cutting blades, and a cover that is hook-connected to the upper surface of the razor body and on which a net covering the cutting blade assembly is formed.

Abstract: A rotary electric shaver including a shaver main body; a motor installed in the shaver main body; and a plurality of outer cutter units detachably provided on the shaver main body, each of the outer cutter units including an outer cutter and an inner cutter which is rotated by the motor and rotate while sliding against the inner surface of the outer cutter are, and in this shaver, each of the outer cutter unit includes a cutter frame on which the outer cutter is mounted at a top end thereof, and this cutter frame is swingable in any direction, and thus the outer cutter units are swingable independently of each other.