JP6629600B2 - Electric razor - Google Patents

Description

  The present invention relates to an electric razor provided with a cutting blade having a movable blade and a fixed blade.

  An electric razor of this kind can be found in US Pat. There, the razor head is provided with a plurality of cutting blades comprising an inner blade and an outer blade. The plurality of cutting blades include first and third cutting blades for rough shaving and second and fourth cutting blades for finishing shaving.

JP 2010-136954 A

  In the electric razor disclosed in Patent Document 1, the outer blade of the third cutting blade for rough shaving is located at a position higher than the outer blade of the second and fourth cutting blades for finishing shaving. The outer blade for rough shaving hits the skin first, and then the outer blade for finishing shaving hits the skin by further pushing. At this time, since the opening area of each of the blade holes of the outer blade for rough shaving is large, there is a problem in contact with the skin.

  An object of the present invention is to provide an electric razor that can improve the skin contact during shaving.

  In the electric razor according to the present invention, a plurality of cutting blades 16 to 19 having fixed blades 22 and 26 and movable blades 23 and 27 are arranged on the razor head 2. The plurality of cutting blades 16 to 19 are composed of cutting blades 16 and 18 for finishing shaving and cutting blades 17 and 19 for rough shaving. The fixed blade 22 and the movable blade 23 of the cutting blades 16 and 18 for finish shaving, and the fixed blade 26 and the movable blade 27 of the cutting blades 17 and 19 for rough shaving can be moved up and down with respect to the razor head 2. Supported. Fixed blade frames that support the fixed blades 22 at the left and right ends of the fixed blades 22 of the finishing blades 16 and 18 and the left and right ends of the fixed blades 26 of the cutting blades 17 and 19 for rough shaving. 24 and 28 are provided with side end frames 24a and 28a, and at the upper ends of the side end frames 24a and 28a, skin contact protrusions 81 to 84 projecting upward from the tops of the fixed blades 22 and 26 are provided. Assuming a virtual reference line P located below the sliding surfaces of the movable blades 23 and 27, the skin contact projections 82 provided on the fixed blade 26 of the cutting blades 17 and 19 for rough shaving are assumed from the virtual reference line P. The vertical height from the virtual reference line P to the top of the skin contact projections 81 and 83 provided on the fixed blade 22 of the cutting blades 16 and 18 for finishing shaving is H2. In this case, the projections 81 to 84 for each skin are arranged so as to satisfy the inequality H1> H2. The vertical height from the virtual reference line P to the top of the fixed blade 22 of the cutting blades 16 and 18 for finishing shaving is H3, and from the virtual reference line P to the top of the fixed blade 26 of the cutting blades 17 and 19 for rough shaving. The fixed blades 22 and 26 are arranged so that the inequality H3 ≧ H4 is satisfied when the vertical height of the fixed blade is H4.

  At least at the inner corner between the fixed blade 26 and the side edge frame 28a of the fixed blade frame 28 of the cutting blades 17 and 19 for rough shaving, a buffer portion 95 that covers the outer side surface of the fixed blade 26 is formed.

  A cushioning inclined surface 96 is formed in the buffering section 95 and slopes downward toward the fixed blade 26.

  In an electric razor in which the skin contact protrusions 81 to 84 are provided on the side end frames 24a and 28a of the fixed blade frames 24 and 28, the height relationship between the skin contact protrusions 81 to 84 and the tops of the fixed blades 22 and 26 is represented by (H1> H2) is satisfied. The height relationship between the tops of the fixed blades 22 of the cutting blades 16 and 18 for finishing shaving and the tops of the fixed blades 26 of the cutting blades 17 and 19 for rough shaving is set so as to satisfy (H3 ≧ H4). . According to such an electric razor, since the skin contact with the fixed blade 26 of the cutting blades 17 and 19 for rough shaving can be restricted by the projections 81 to 84 on the skin, the burden on the skin during shaving can be reduced. .

  When the buffer portion 95 is provided at an inner corner between the side edge frame 28a of the fixed blade frame 28 and the fixed blade 26, the skin contact protrusion 84 protruding upward from the fixed blade 26 precedes the fixed blade 26. The buffer 95 can prevent the skin surface from being greatly dented when hitting the skin surface. Further, since the skin surface is not greatly dented by the skin contact protrusion 84, the skin contact at the time of shaving can be made smooth.

  When the cushioning inclined surface 96 is formed in the cushioning portion 95, the area of the cushioning portion 95 connected to the skin contacting protrusion 84 can be increased, and the surface change of the buffering inclined surface 96 from the skin contacting protrusion 84 to the fixed blade 26 is moderate. Thus, the skin contact at the time of shaving can be further softened and smoothed. Further, when the skin surface slides from the fixed blade 26 toward the skin contact protrusion 84, the skin surface is smoothly guided by the cushioning inclined surface 96, and the skin surface crosses the skin contact protrusion 84. Operation can be performed smoothly.

It is a principle explanatory view of the movable blade drive structure of the electric razor according to the present invention. 1 is a front view of an electric shaver according to the present invention. It is a side view of a razor head. It is a top view of a razor head. It is a vertical side view of a razor head. It is a vertical front view of the principal part which shows the mounting structure of a fixed blade holder. It is a partially broken front view of the principal part showing the removal operation of the fixed blade holder. FIG. 3 is an exploded cross-sectional view showing a mounting structure of a fixed blade holder. It is sectional drawing of a movable blade drive structure. It is explanatory drawing which shows the moving state of a movable blade. It is sectional drawing which shows the relationship of the height of a skin contact protrusion and a fixed blade in each cutting blade. It is a vertical front view of the principal part which shows the related structure of a skin contact protrusion and a fixed blade holder. It is a rear view of an important section showing a relation structure of a skin contact projection and a fixed blade holder. It is principle explanatory drawing of another Example 1 of the movable blade drive structure of an electric razor. It is a principle explanatory view of another embodiment 2 of the movable blade drive structure of the electric razor. It is a principle explanatory view of another embodiment 3 of the movable blade drive structure of the electric razor. FIG. 14 is an explanatory view of the principle of another embodiment 4 of the movable blade drive structure of the electric razor. It is sectional drawing of Example 4 of another Example of the movable blade drive structure of an electric razor. It is principle explanatory drawing of another Example 5 of the movable blade drive structure of an electric razor. It is principle explanatory drawing of another Example 6 of the movable blade drive structure of an electric razor. It is sectional drawing of another Example 6 of the movable blade drive structure of an electric razor. It is sectional drawing of the modification 1 of the protrusion of the skin contact of an electric razor. It is principle explanatory drawing of another Example 7 of the movable blade drive structure of an electric razor. It is sectional drawing which shows the principle structure of another Example 8 of the movable blade drive structure of an electric razor.

First Embodiment FIGS. 1 to 13 show a first embodiment of an electric shaver according to the present invention. The front, rear, left, right, up and down in the present invention follow the cross arrows shown in FIG. 2 and FIG. 2 and 3, the electric razor includes a main body case 1 also serving as a grip, and a razor head 2 supported by the main body case 1 so as to be vertically movable and tiltable right and left. The razor head 2 is provided on the upper part of the main body case 1. Electrical components such as a motor 3, a secondary battery 4, and a control board 5 are arranged inside the main body case 1. The control board 5 is provided with a switch for switching the state of current supply to the motor 3 and an LED 6 for displaying the remaining amount of light by emitting light. On the front face of the main body case 1, a switch button 8 for switching the previous switch is arranged. Further, as shown in FIG. 3, on the rear surface side of the main body case 1, a sharp shaving blade 9 and a slide knob 10 for pushing up the sharp shaving blade 9 to a driving position are provided. In this embodiment, an electric razor in which the razor head 2 is supported by the main body case 1 so as to be vertically movable and tiltable left and right will be described. However, the razor head 2 may be fixed to the main body case 1. 1 and 2, reference numeral 3a denotes an output shaft of the motor 3.

  As shown in FIG. 3, the razor head 2 includes a head base 13 and a fixed blade holder 14 detachably mounted on the base 13 as a base. The head base 13 includes a motor holder (shown in FIG. 3). (Not provided). A float structure is provided between the lower part of the motor holder and the main body case 1 to support the razor head 2 so as to be able to move up and down and to tilt left and right. The fixed blade holder 14 includes a first main blade (cutting blade) 16 for finishing shaving, a center blade (cutting blade) 17 for rough shaving, and a second main blade (cutting blade) for finishing shaving in order from the front side. 18 and a sub-blade (cutting blade) 19 for rough shaving.

  As shown in FIG. 4, each of the main blades 16 and 18 includes a fixed blade (outer blade) 22 formed of a mesh blade and a movable blade (inner blade) 23 formed of a slit blade that slides on the inner surface of the fixed blade 22. Finishing and cutting short hair, mainly. The fixed blade 22 is fixed to a fixed blade frame 24 and is curved in an inverted U shape. The movable blade 23 is fixed to a movable blade frame 25 and is curved in an inverted U shape. The first main blade 16 and the second main blade 18 have the same size, and there is no difference in their outer dimensions.

  The center blade 17 and the sub-blade 19 each include a fixed blade 26 composed of a slit blade and a movable blade 27 composed of a comb blade slidably in contact with the inner surface of the fixed blade 26, and mainly cut long hairs and hairs. The fixed blade 26 is supported by a fixed blade frame 28, and the movable blade 27 is supported by a movable blade frame 29. The fixed blade frames 24 and 28 are mounted on a fixed blade support base 30. The fixed blade frames 24 and 28 in this state are pushed upward by fixed blade springs (springs) 31 (see FIG. 5) which are elastic means disposed between the fixed blade support base 30 and the fixed blade frames 24 and 28. By being urged, the slide pieces 32 provided at the left and right ends of each of the fixed blade frames 24 and 28 are received at the upper ends of the guide grooves 33 provided in the fixed blade support base 30 (see FIG. 6). Therefore, the fixed blade 26 and the fixed blade frames 24 and 28 sink toward the fixed blade support base 30 (downward) when receiving a pressing reaction force from the skin surface. The spring load of the fixed blade spring 31 that pushes up and urges the fixed blade 26 of the center blade 17 and the sub blade 19 is set smaller than the spring load of the fixed blade spring 31 that pushes up and urges the fixed blade 22 of each of the main blades 16 and 18. Have been. This is to make the fixed blades 26 of the center blade 17 and the sub blade 19 easier to sink than the fixed blades 22 of the main blades 16 and 18 and to soften the skin contact. By operating the switch button 8 and rotating the motor 8, the movable blades 23 and 27 slide on the inner surfaces of the fixed blades 22 and 26.

  In each of the fixed blades 22 and 26, a blade hole (including a slit) for introducing a beard is formed, and the opening area of each of the center blade 17 and the sub-blade 19 is reduced by the first main blade 16 and the second blade. The opening areas of the individual blade holes of the main blade 18 are made larger so that a larger amount of whiskers can be easily introduced. In particular, the opening area of each blade hole of the sub-blade 19 arranged at the rear end of the razor head 2 is the largest compared to the opening area of each blade hole of the other cutting blades. It can be introduced effectively to perform early shave.

  As shown in FIGS. 6 to 8, on the left and right sides of the head base 13, a release button 36 that locks and holds the fixed blade holder 14 attached to the head base 13 so that it cannot be separated is slidably assembled left and right. And is pushed outward. The button spring 37 in the present embodiment is a metal coil spring, but is not limited thereto, and may be a metal leaf spring, a resin coil spring, or the like. Further, a spring formed integrally with the removal button 36 may be used. The removal button 36 includes a button body 38, a vertical receiving wall 39 provided on an upper part of the button body 38, an engagement claw 40 provided on a lower part of the button body 38, and an engagement step provided on front and rear sides of the button body 38. It is made of a plastic molded article integrally provided with the portion 41. An engagement groove 42 corresponding to the engagement claw 40 is formed in the head base 13, and an engagement claw 43 corresponding to the engagement step portion 41 is formed on the inner surface of the holder side frame 14 a of the fixed blade holder 14. ing. The button body 38 and a separation protrusion 47 described later protrude outward from the operation window 44 provided in the holder side frame 14a (see FIG. 6). In the case of an electric razor in which the razor head 2 is fixed to the main body case 1, a portion corresponding to the head base 13 is a structure on the main body case 1 side on which the fixed blade holder 14 is mounted.

  The fixed blade support base 30 is formed of a rectangular frame that is horizontally long in the left and right direction. An inverted J-shaped detachable arm 46 that can be elastically deformed is integrally provided on the left and right side end frames 30a. A circular separation projection 47 is provided to protrude outward. An escape recess 48 for the receiving wall 39 is formed on the outer surface of the side end frame 30a, and the guide groove 33 is formed before and after the side end frame 30a. On the outer surface of the detaching arm 46, an engagement claw 50 is formed which engages with an engagement recess 49 formed in the inner surface of the side end frame 14a of the fixed blade holder 14.

  The fixed blade support base 30 is assembled with the fixed blade frame 24 of each of the main blades 16 and 18 and the fixed blade frame 28 of the center blade 17 and the sub-blade 19, and the fixed blade support base 30 in this state is attached to the inner surface of the fixed blade holder 14. The fixed blades 22, 22, 26, 26 can be integrated with the fixed blade holder 14 by assembling the fixed blades from the lower surface side. In this state, as shown in FIG. 6, the engaging claw 50 of the detaching arm 46 is engaged with the engaging concave portion 49 on the inner surface of the fixed blade holder 14. By attaching the fixed blade holder 14 to which the fixed blade support base 30 is attached to the head base 13, the engaging claw 43 of the fixed blade holder 14 is engaged with the engaging step 41 of the release button 36 as shown in FIG. And is held and fixed inseparably. Further, the lower inner surface of the detaching arm 46 is received by the receiving wall 39 of the detaching button 36.

  When removing the shavings inside the razor head 2 or replacing the main blades 16 and 18, the center blade 17 and the sub-blade 19 whose service life has expired, the detach button 36 and the separation projection 47 are simultaneously operated. Then, the fixed blade holder 14 is removed from the head base 13. More specifically, as shown in FIG. 7, one of the thumb and forefinger grasps the removal button 36, and the other thumb and forefinger grasps the separation projection 47, thereby resisting the urging force of the button spring 37 and the elastic force of the removal arm 46. Then, both 36 and 47 are pushed simultaneously. At this time, the pushing force applied to the separation projection 47 acts on the removal button 36 via the receiving wall 39. Therefore, in a state where the pushing force acting on the release button 36 is about twice as compared with the case where only the release button 36 is pushed in, the removal button 36 is pushed securely and lightly, and the removal button 36 is pressed. Can be disengaged from the engaging claw 43 and the fixed blade holder 14 can be removed from the head base 13.

  As described above, since the inside of the razor head 2 is opened when the fixed blade holder 14 is removed, it is possible to clean and remove shavings or replace all the movable blades 23, 23, 27, 27. it can. Further, by pressing the pair of separation projections 47 while holding the fixed blade holder 14, the fixed blade support base 30 is removed from the fixed blade holder 14, and the fixed blade support base 30 and the fixed blades 22 and 26 are removed. Can be cleaned and replaced. Further, by pressing the pair of separation projections 47 while holding the fixed blade holder 14, the engagement state of the engagement claw 50 of the removal arm 46 with the engagement recess 49 formed in the fixed blade holder 14 is performed. Can be released, and the fixed blade support base 30 can be detached downward from the fixed blade holder 14. Thereby, cleaning and replacement of the fixed blade support base 30 and the fixed blades 22 and 26 can be performed. In this manner, the fixed blade frames 24 and 28 that support the fixed blades 22 and 26 and the detachable arm 46 and the separation protrusion 47 that operate to attach and detach the fixed blade support base 30 that supports the fixed blade frames 24 and 28 to and from the fixed blade holder 14 are formed. Also, since it also serves as an operating means for supporting the pushing of the detach button 36, the attaching / detaching structure can be simplified. In this embodiment, the detachable arm 46 and the separation projection 47 are used as the operating means as described above. However, the present invention is not limited to this. For example, the fixed blade support base 30 is not fixed to the fixed blade holder 14 but is fixed to the fixed blade holder 14, and the detaching arm 46 and the separation protrusion 47 are directly fixed to the inner wall of the fixed blade holder 14. It is possible to use the operating means for exclusively supporting the pushing of the button. Also in this case, it is preferable to set the protruding end of the separation protrusion 47 outside the protruding end of the detach button 36. In the present embodiment, the detachable arm 46 has an inverted J-shaped structure that is elastically deformable. However, the structure is not limited to this. It may be a structure. Further, the removal arm 46 may be a combination structure of a coil spring or a plate-like spring and a lying hat-shaped base body having an arm piece for pressing the receiving wall 39. In this case, the separation projection 47 may be provided integrally on the top of the hat-shaped base body.

  A movable blade drive structure between the motor 3 and the movable blades 23/27 for reciprocatingly driving the four movable blades 23/27 of the main blades 16/18, the center blade 17 and the sub-blade 19 right and left and back and forth. Is provided. In this embodiment, the first main blade 16 and the center blade 17 constitute a front-side cutting blade group C1, and the second main blade 18 and the sub-blade 19 constitute a rear-side cutting blade group C2. The movable blade drive structures D1 and D2 are provided for each of C1 and C2. In FIGS. 1 and 9, the movable blade drive structures D1 and D2 include a motor 3, a cam structure (motion conversion structure) disposed between the motor 3 and the movable blades 23 and 27, drive levers 55 and 56, and a drive lever. It is composed of four connecting pins (connecting bodies) 57, 58, 59, and 60 for transmitting the swinging operation of 55 and 56 to the movable blades 23 and 27. The cam structure is composed of eccentric cams 62 and 63 fixed to the output shaft 3a of the motor 3, and cam grooves 64 and 65 formed at the swinging tips of the drive levers 55 and 56.

  As shown in FIG. 1, the drive lever 55 of the movable blade drive structure D <b> 1 corresponding to the front-side cutting blade group C <b> 1 is disposed on the front side of a vertical plane extending right and left through the center axis of the motor 3, and its front end swings. It is pivotally supported by a moving center shaft 68 so as to be able to swing right and left. The drive lever 56 of the movable blade drive structure D2 corresponding to the rear cutting blade group C2 is disposed on the rear side of a vertical plane extending right and left through the center axis of the motor 3, and its rear end has a swing center axis. At 69, it is pivotally supported to be able to swing left and right. The swing center shafts 68 and 69 are fixed to a pair of front and rear brackets 70 and 70 provided on the head base 13. As shown in FIG. 9, passive arms 71 and 72 are respectively provided at the swinging ends of the pair of drive levers 55 and 56, and the eccentric cams 62 and 63 are provided on the plate surfaces of the passive arms 71 and 72. The engaging cam grooves 64 and 65 are formed. The passive arms 71 and 72 are provided adjacent to each other with a vertical interval on the center axis of the motor 3. As described above, the movable blade drive structure D1 and the movable blade drive structure D2 use the motor 3 as a common drive source, and reciprocally drive the four movable blades 23 and 27 with only one motor 3.

  Connecting pins (connecting bodies) 57 and 58 for transmitting the reciprocating operation of the lever 55 to the first main blade 16 and the movable blades 23 and 27 of the center blade 17 are fixed to the front drive lever 55 at predetermined intervals. Have been. Further, connecting pins (connecting bodies) 59 and 60 for transmitting the reciprocating operation of the lever 56 to the movable blades 23 and 27 of the second main blade 18 and the sub blade 19 are provided at a predetermined distance on the rear drive lever 56. Open and fixed. In this way, by disposing the connection positions of the connection pins 57 to 60, the front-rear distance between the connection pins 57 and 58 and the swing center axis 68 is different, and the connection pins 59 and 60 and the swing center axis are different. The front-back distance between 69 will be different. As shown in FIG. 5, the upper ends of the connection pins 57 to 60 are engaged with connection holes 73 to 76 provided in the movable blade frames 25, 25, 29, 29, respectively. A movable blade spring (spring) 77, which is an elastic means that pushes and urges the blades 23 and 27 toward the fixed blades 22 and 26, is disposed. The spring load of the movable blade spring 77 that pushes and biases the movable blade 27 of the center blade 17 and the sub blade 19 is set smaller than the spring load of the movable blade spring 77 that pushes and biases the movable blade 23 of each of the main blades 16 and 18. Have been. This makes it easier for the fixed blades 26 of the center blade 17 and the sub-blade 19 to sink than the fixed blades 22 of each of the main blades 16 and 18, and softens the skin contact. Note that, of the components of the movable blade drive structure D1 and D2, each member except the motor 3 is housed inside the case body 15 and sealed with a packing (not shown) for sealing the upper surface of the case body 15. Only the connecting pins 57, 58, 59, 60 penetrate the packing and transmit the swinging motion of the drive levers 55, 56 to the movable blades 23, 27.

  At the time of shaving, the drive lever 55 of the front movable blade drive structure D1 and the drive lever 56 of the rear movable blade drive structure D2 are simultaneously driven by motor power to swing the four movable blades 23 and 27. Drive back and forth. At this time, since the rotation direction of the motor 3 is one direction (clockwise direction in FIG. 1), the drive levers 55 and 56 in each of the drive structures D1 and D2 swing in the opposite directions in synchronization. When driven, the movable blades 23 and 27 of the front cutting blade group C1 and the movable blades 23 and 27 of the rear cutting blade group C2 are reciprocated in opposite directions. For this reason, it is possible to cancel the vibration when the front and rear movable blades 23 and 27 reciprocate and cancel out the unpleasant vibration on the skin surface, and to perform the whisker cutting more smoothly.

  Further, as shown in FIG. 10, each movable blade 23/27 moves slightly back and forth while reciprocating left and right with respect to the corresponding fixed blade 22/26. Therefore, each of the movable blades 23 and 27 exerts a tearing action on the beard captured by the fixed blades 22 and 26, so that the beard can be cut smoothly and accurately. Further, in the front-side cutting blade group C1, since the front-rear distance from the center of the swing center axis 68 of the drive lever 55 to the center of each of the connecting pins 57 and 58 is different, the movable blade closer to the swing center axis 68 is different. The left and right reciprocating strokes S1 and the front and rear movement amount T1 of the movable blade 27 are smaller than the left and right reciprocating strokes S2 and the front and rear movement amount T2 of the movable blade 27 farther from the swing center axis 68. A similar difference occurs in the rear cutting blade group C2.

  Specifically, in the front-side cutting blade group C1, the left-right stroke S2 of the movable blade 27 of the center blade 17, the front-rear movement amount T2, and the reciprocating speed are the same as the left-right stroke S1 of the movable blade 23 of the first main blade 16 and the front-rear movement amount. It is larger than T1 and the reciprocating speed. For this reason, after the long hairs and the hairs are effectively cut by the center blade 17, the short hairs can be effectively finished and cut by the main blades 16 and 18 adjacent to the front and rear. Further, in the rear side cutting blade group C2, the left-right stroke S2 of the movable blade 23 of the second main blade 18 and the longitudinal movement amount T2 and the reciprocating speed are the same as the left-right stroke S1 of the movable blade 27 of the sub-blade 19 and the longitudinal movement amount. T1 and the reciprocating speed become larger. The distance between the center of the connecting pin 60 for driving the movable blade 27 of the sub-blade 19 and the center of the swing center shaft 69 in the rear-side cutting blade group C2 is different from that of the connecting pin 59 for driving the movable blade 23 of the second main blade 18. It is smaller than the distance between the centers of the moving center shafts 69. Therefore, a larger swing torque acts on the movable blade 27 of the sub-blade 19 than on the movable blade 23 of the second main blade 18. Therefore, the long house and the curly hair captured by the fixed blade 26 of the sub-blade 19 having the large opening area of the blade hole can be effectively cut, and the beard can be cut efficiently.

  In the electric razor configured as described above, the center blade 17 and the fixed blade 26 of the sub-blade 19 are configured as slit blades, so that the skin contact is poor, and the skin contact feeling is smoother than the fixed blade 22 having the mesh blade structure. Is difficult to obtain. Moreover, since all the movable blades 23 and 27 vibrate back and forth, there is a tendency that a burning sensation is likely to occur after shaving. In order to improve such a feeling of use and obtain a feeling of smooth skin contact, the left and right ends of the fixed blade 22 of each of the main blades 16 and 18 and the left and right ends of the fixed blade 26 of the center blade 17 and the sub blade 19 are respectively provided. The skin contact projections 81 to 84 are provided. Specifically, in the fixed blade frame 24 that supports the fixed blades 22 of the main blades 16 and 18, the skin contact protrusions 81 projecting upward from the tops of the fixed blades 22 at the upper ends of the left and right side end frames 24a. 83 are provided. Further, in the fixed blade frame 28 supporting the fixed blade 26 of the center blade 17 and the sub blade 19, skin contact protrusions 82 and 84 projecting upward from the tops of the fixed blades 26 are provided at the upper ends of the left and right side end frames 28a. Provided.

  The above dimensional relationships are arranged as shown in FIG. First, assume a virtual reference line P that is parallel to the reciprocating direction of the movable blades 23 and 27 and that is located below the sliding surface of the movable blades 23 and 27. The vertical height from the virtual reference line P to the top of the skin contact protrusions 82 and 84 provided on the fixed blade 26 of the center blade 17 for rough shaving and the sub-blade 19 is H1, and the final shaving is performed from the virtual reference line P. When the vertical height of the first and second main blades 16 and 18 to the tops of the skin contact projections 81 and 83 provided on the fixed blade 22 is H2, the inequality (H1> H2) is satisfied. The projections 83 and 84 are arranged on each skin. Further, the vertical height from the virtual reference line P to the tops of the fixed blades 22 of the first and second main blades 16 and 18 for finish shaving is H3, and the center blade 17 for rough shaving and When the vertical height of the sub-blade 19 up to the top of the fixed blade 26 is H4, the fixed blades 22 and 26 are arranged so as to satisfy the inequality (H3 ≧ H4). The vertical height H3 from the virtual reference line P to the tops of the fixed blades 22 of the first and second main blades 16 and 18 for finishing shaving is determined by the first and second heights H1 and V2 for finishing shaving from the virtual reference line P. Are set slightly smaller than the vertical height H2 to the tops of the skin contact projections 81 and 83 provided on the fixed blades 22 of the main blades 16 and 18 (H2> H3).

  As described above, when the skin contact protrusions 83 and 84 are projected above the skin contact protrusions 81 and 83, and when the top of the fixed blade 22 is positioned above the top of the fixed blade 26, the skin surface is centered. The contact of the blade 17 and the sub-blade 19 with the fixed blade 26 can be prevented, and the skin surface can be prevented from drastically falling into the slit of the latter fixed blade 26. Therefore, it is possible to make the feeling of skin contact during shaving smooth, and to prevent the occurrence of a burning sensation after shaving.

  At the time of normal shaving, the razor head 2 is moved in the front-rear direction orthogonal to the reciprocating direction of each movable blade 23/27, while moving the razor head 2 along the reciprocating direction of each movable blade 23/27. Beard cutting may be performed. In such a case, in order to smoothly sink the fixed blades 22 and 26 to soften the skin contact, the side end frames 24a and 28a (the skin contact protrusions 81) when the razor head 2 is viewed from the front-rear direction. To 84), inclined surfaces 85 and 86 are formed which are inclined downward from the top to the side end. In this embodiment, the inclined surfaces 85 provided on the first main blade 16, the center blade 17, and the second main blade 18 are formed so as to be inclined downward from the top toward the side ends, and the upper and lower ends thereof are rounded. did. As shown in FIG. 6, when the razor head 2 is viewed from the front-back direction, the inclined surface 85 is formed as an outwardly curved curved surface.

  As shown in FIG. 12, when the razor head 2 is viewed from the front-back direction, the inclined surface 86 of the sub-blade 19 is formed as an outwardly curved inclined surface, and is disposed in a groove (recess) 80 at the left and right center thereof. The metal roller 87 thus functioned as the skin contact projection 84. That is, the roller 87 is provided on the side end frame 28 a formed by the outwardly curved inclined surface 86 that is inclined downward from the top to the side end. In other words, the roller 87 is provided on the side end frame 28 a formed by the outwardly curved inclined surface 86 inclined downward toward the outside of the razor head 2. As shown in FIG. 12, the peripheral surface of the roller 87 is a skin contact surface, and is inclined in an outwardly curved shape along the inclined surface 86. That is, the peripheral surface of the roller 87 is an outwardly curved inclined surface that inclines downward toward the outside. The roller 87 is a generally frustoconical roller lying down. In each of the cutting blades 16 to 19, one side end frame 24a / 28a of the two left and right side end frames 24a / 28a is provided with an inclined surface in the shape of a convex curved surface over most of the left / right direction (width direction). Has been. Thereby, a softer skin contact can be obtained. The roller 87 is rotatably supported about a horizontal axis by a pin (rotating shaft) 88, and its peripheral surface is flush with an inclined surface 86 having an outwardly curved surface. The pins 88 are inserted in the holes 80a formed on the left and right of the groove 80, and are disposed so as to straddle the groove 80 of the side end frame 28a so that the axial direction thereof coincides with the left and right direction. ing. Therefore, the roller 87 is attached to the side end frame 28a so as to be rotatable around the horizontal axis in the left-right direction. Further, the roller 87 can be provided rotatably with respect to the fixed pin 88 via a bearing. In the present embodiment, after the pin 88 is fixed to the side end frame 28a, the roller 87 is rotatably supported on the fixed pin 88, but is not limited thereto. After the pin 88 and the roller 87 are integrally formed, a bearing such as a bearing is arranged in a hole 80a for supporting the pin 88 of the side end frame 28a, and the roller 87 is configured by supporting the pin 88 with this bearing. The structure may be rotatably supported. Further, in this embodiment, the pin 88 has a two-sided support structure in which both ends of the pin 88 are supported. However, a cantilevered support structure in which only one end of the pin 88 is supported may be used. In this case, since the roller 87 can be provided over the end of the pin 88 on the unsupported side, the contact area with the skin surface can be increased, and the skin contact can be made softer.

  As shown in FIG. 13, roller windows (notches) 89 are formed on both left and right sides of the rear frame of the fixed blade holder 14 so that the rear peripheral surface of the roller 87 projects toward the rear surface of the fixed blade holder 14. . As shown in FIG. 5 and FIG. 11, the skin contact projection 84 a formed of the rear peripheral surface and the inclined surface 86 of the roller 87 projects rearward from the rear surface of the fixed blade 26, so that the skin contact projection 84 a, that is, the roller The rear peripheral surface of 87 and the inclined surface 86 are brought into contact with the skin surface so that the skin surface is not directly pressed against the slit of the fixed blade 26, and the skin contact of the sub-blade 19 can be made soft. . In order to supply a weak current having a positive polarity and a negative polarity to the skin surface using the roller 87, a current supply source 90 is provided inside the main body case 1, and a lead wire 91 derived from the current supply source 90 is connected to the pin 88. Connected. The weak current is output to the roller 87 via the pin 88 when the motor 3 is in the operating state, and gives a current stimulus to the skin surface.

  The roller 87 is not limited to being made of metal as long as it can supply current to the skin surface, and may be a conductive resin. Further, the roller 87 may have a configuration in which a cylindrical or frusto-conical tire made of conductive rubber is fitted around a metal cylindrical or frusto-conical wheel. Further, in this embodiment, one roller 87 has a positive polarity and the other roller 87 has a negative polarity. However, the present invention is not limited to this. A conductive member made of a resin or a conductive resin is provided, and this is used as a grip electrode. Then, the two rollers 87 are both configured to have a positive polarity or a negative polarity, and the grip electrodes are configured to have a negative polarity or a positive polarity, which is the opposite polarity of the two rollers 87, to supply a current to a skin surface via a human body. be able to. In this case, the rollers 87 need not be a pair, and may have a structure in which one of the right and left rollers 87 is provided. Note that the roller 87 may not be conductive as long as the current is not supplied to the skin surface, and the roller 87 may be a resin-made cylindrical or frusto-conical roller. Alternatively, a roller in which a rubber cylindrical or frustoconical tire is fitted around a cylindrical or frustoconical wheel made of resin may be used. By providing an elastic member (anti-slip means) having a large coefficient of friction, such as natural rubber, silicone rubber, or an elastomeric resin, on the peripheral surface (skin contact surface) of the roller 87, the roller 87 can be driven by the frictional force received from the skin surface. It can be easily rotated. Thereby, the razor head 2 can be moved more smoothly. Further, the roller 87 may have a roller structure in which the shape of the groove (recess) 80 provided in the side end frame 28a is a dome-shaped recess having an inner recess, and a sphere (ball) is provided in the dome-shaped recess. In this case, the sphere is provided so as not to be able to escape from the dome-shaped concave portion and to be able to roll in all directions. In short, the roller 87 is not limited to a rotating structure that rotates around an axis as long as it has a rolling structure.

  The lower ends of the inclined surfaces 85 and 86 are located below the top of the holder side frame 14a of the fixed blade holder 14. This is to prevent the lower ends of the inclined surfaces 85 and 86 from biting into the skin surface, and to smooth the feeling of contact with the skin. As shown in FIGS. 6 and 12, a holder inclined surface 94 is formed on the upper portion of the holder side frame 14 a when the razor head 2 is viewed from the front-rear direction, the holder inclined surface 94 being inclined downward from the top to the side end. I have. Assuming a virtual inclined surface Q extending above the fixed blades 22 and 26 through the holder inclined surface 94, the preceding inclined surfaces 85 and 86 are located below the virtual inclined surface Q. This is to prevent the inclined surfaces 85 and 86 protruding above the holder side frame 14a from hitting the skin surface earlier than the holder inclined surface 94, and to smooth the feeling of skin contact.

  Since the skin contact protrusions 82 and 84 described above project above the fixed blade 26 of the center blade 17 and the sub blade 19, the skin contact protrusions 82 and 84 hit the skin surface prior to the fixed blade 26. There is a possibility that the skin surface will be greatly dented. In order to avoid such a situation, a buffer portion 95 for covering the outer surface of the side edge of the fixed blade 26 is formed at an inner corner between the side edge frame 28a of the fixed blade frame 28 of the center blade 17 and the sub blade 19 and the fixed blade 26. are doing. As shown in FIGS. 12 and 13, the cushioning portion 95 is formed with a cushioning inclined surface 96 that is inclined downward from the skin contact protrusion 84 toward the fixed blade 26, and the inclined surface 96 is It is formed to extend from the upper front corner to the rear surface via the upper surface.

  According to the electric shaver configured as described above, the movable blades 23 and 27 of the four cutting blades 16 to 19 are reciprocated right and left and back and forth by the movable blade drive structures D1 and D2, so that the movable blades can be moved at the time of cutting the beard. By causing the blades 23 and 27 to exert the cutting action, the whiskers can be cut smoothly and accurately. In addition, skin contact projections 81 to 84 are provided on the side end frames 24 a and 28 a of the fixed blade frames 24 and 28 of the respective cutting blades 16 to 19, and the skin surface bites into the fixed blade 26 of the center blade 17 and the sub blade 19. This reduces the burden on the skin when shaving. Further, since the skin surface is received by the skin contact projections 81 to 84 and the skin surface can be restricted from being strongly pressed against the fixed blade 26 of the cutting blades 17 and 19 for rough shaving, the movable blades 23 and 27 vibrate in the longitudinal direction. This can eliminate the burning sensation after shaving, improve the usability of the electric razor as a whole, and provide a smooth skin contact feeling.

Hereinafter, another embodiment of the movable blade drive structure and another embodiment of the skin contact protrusion will be described. In each embodiment, a structure and a function different from those in the first embodiment will be mainly described, and the same members will be denoted by the same reference numerals and description thereof will be omitted.
(Embodiment 1) FIG. 14 shows Embodiment 1 in which the cutting blade groups C1 and C2 and the movable blade drive structures D1 and D2 are changed. There, the front side cutting blade group C1 was constituted by three cutting blades 16, 17, 20 and the rear side cutting blade group C2 was constituted by two cutting blades 18, 19. The distance L2 between the centers of the three connecting pins 57, 58, and 61 fixed to the front drive lever 55 and the center of the connecting pin 57 closest to the center of the front swing center axis 68 and the center of the front swing center axis 68. The distance L1 was set the same. When the center distances L1 and L2 are set to 1, the center distance L3 between the two connecting pins 59 and 60 fixed to the rear drive lever 56 is set to 1.2 and the center of the rear swing center axis 69 is set. The distance L4 between the centers of the connection pins 60 closest to the same central axis 69 is set to 1.5.

  As described above, if the center-to-center distances L1 to L4 of the connecting pins 57 to 61 and the like corresponding to the respective cutting blades 16 to 20 are different from each other, depending on the distance from the swing center axes 68 and 69, The left and right strokes S and the forward and backward movement amounts T of the movable blades 23 and 27, as well as the reciprocating speed and the swing torque, can be made to differ greatly. As described above, in the second embodiment, the positions of the connection pins 57 to 61 are different from each other, so that the connection pins 57, 58, 61, 59, 60 of the front and rear drive levers 55, 56 and the swing center shaft 68 are formed. The front and rear distances between them are all different so that the driving positions of the five movable blades 23 and 27 are different. In FIG. 14, the front-side cutting blade group C1 is constituted by the cutting blades 16 and 20 each including two main blades and the cutting blade 17 including the center blade disposed between the two main blades. Can be freely changed as necessary. For example, the front-side cutting blade group C1 may be configured with only three main blades. Similarly, the rear cutting blade group C2 may be configured with only two main blades or only two sub blades, and the same applies to the following embodiments.

Second Embodiment FIG. 15 shows a second embodiment in which the cutting blade groups C1 and C2 and the movable blade driving structures D1 and D2 are changed. In this case, the front-side cutting blade group C1 and the rear-side cutting blade group C2 are configured in the same manner as in the first embodiment, but the rear drive lever 56 is moved to the center of the razor head 2 perpendicular to the center axis of the motor 3. It is different from the movable blade drive structure D2 of the first embodiment in that it is inclined with respect to the axis. An eccentric cam 62 for driving the front drive lever 55 is provided on the upper side, and an eccentric cam 63 for driving the rear drive lever 56 is provided on the lower side. In the movable blade drive structures D1 and D2 of the first and second embodiments, the razor head 2 is arranged such that the cam centers of the eccentric cams 62 and 63 and the axis of the output shaft 3a of the motor 3 are orthogonal to the center axis of the motor 3. , The front and rear drive levers 55 and 56 overlap linearly along the front and rear center axis of the razor head 2. However, in the third embodiment, the front and rear drive levers 55 and 56 do not overlap linearly along the front and rear center axis of the razor head 2.

  As described above, when the center position of the swing center shaft 69 of the rear drive lever 56 is shifted to the left or right with respect to the center position of the front swing center shaft 68, the rear drive lever 56 , The front-rear movement amount T of the movable blades 23 and 27 driven by the front drive lever 55 can be made larger. On the other hand, when the center-to-center distances from the swing center axes 68 and 69 to the connecting pins 57 to 60 are set under the same conditions, the left and right sides of the movable blades 23 and 27 driven by the rear drive lever 56 are set. The stroke S is smaller than that on the front side.

Third Embodiment FIG. 16 shows a third embodiment in which the movable blade drive structures D1 and D2 are changed. Here, when the center positions of the front and rear swing center axes 68 and 69 are on the front and rear center axes of the razor head 2, the center position of the motor 3 is shifted to the side of the front and rear center axis of the razor head 2 and Each of the drive levers 55 and 56 is inclined with respect to the center axis of the razor head 2 in the front-rear direction. In this case, the operating characteristics of the movable blades 23 and 27 of the front-side cutting blade group C1 are the same as the operating characteristics of the movable blades 23 and 27 of the rear-side cutting blade group C2. 55 and 56 are oscillated in synchronization with each other in opposite directions.

(Fourth Embodiment) FIGS. 17 and 18 show a fourth embodiment in which the cutting blade group C1 and the movable blade drive structure D1 are changed. There, the razor head 2 is provided with only one cutting blade group C1. The cutting blade group C1 is composed of the main blade 18 and the sub blade 19, and the fixed blade 26 on the side close to the swing center axis 69 of the drive lever 56 is formed by a slit blade. Further, the opening area of each blade hole of the fixed blade 26 closer to the swing center axis 69 is set larger than the opening area of each blade hole of the fixed blade 22 far from the swing center axis 69. In this manner, by forming the fixed blade 26 with a slit blade and further setting the opening area of each blade hole large, it is possible to introduce more long hairs or curly hairs and perform early shaving. Further, since the opening area of each blade hole of the fixed blade 26 on the side close to the swing center axis 69 is set large, the moment arm of the drive lever 56 can be operated even if more long hairs or curly hairs are introduced. The load can be reduced by the small amount, and the load on the motor 3 can be reduced. The movable blade drive structure D1 is formed on the lower surface of the drive lever 56, the two connecting pins 59 and 60 fixed to the lever 56, the eccentric cam 63 fixed to the output shaft 3a of the motor 3, and the lower surface of the drive lever 56. It was composed of a cam groove 65 and the like. The center position of the motor 3 is located at the front and rear center of the front and rear connection pins 59 and 60. In this embodiment, the front and rear movable blades 23 swing back and forth in synchronization with the drive lever 56 in the left and right direction, but the swing stroke of the rear movable blade 23 is smaller than that of the front movable blade 23. Become.

(Embodiment 5) FIG. 19 shows Embodiment 5 in which the cutting blade groups C1 and C2 and the movable blade drive structures D1 and D2 are changed. There, the front-side cutting blade group C1 was constituted by three cutting blades 16, 17, and 20, and the rear-side cutting blade group C2 was constituted by three cutting blades 18, 19, and 21. Only one drive lever 55 is provided in a state orthogonal to all of the cutting blades 16 to 21, and the front and rear central portions thereof are pivotally supported by a support shaft 101 so that the seesaw can swing. Further, a cam groove 102 and an eccentric cam 103 for driving the groove 102 are provided on the rear lower surface of the driving lever 55, and the eccentric cam 103 is driven to rotate by the motor 3. The center distance L1 between the support shaft 101 and the connection pins 61 and 59 adjacent to the coaxial 101 was the same as the center distance L1 between the front and rear connection pins 57 to 61 and 66. In this embodiment, the movable blades 23 and 27 of the front-side cutting blade group C1 and the movable blades 23 and 27 of the rear-side cutting blade group C2 reciprocate in opposite directions.

(Embodiment 6) FIGS. 20 and 21 show Embodiment 6 in which the movable blade drive structures D1 and D2 are changed. There, the front-side cutting blade group C1 was constituted by two cutting blades 16 and 17, and the rear-side cutting blade group C2 was constituted by two cutting blades 18 and 19. Further, the front drive lever 55 and the rear drive lever 56 are pivotally supported by a support shaft 101 provided between the front and rear cutting blade groups C1 and C2, and the respective drive levers 55 and 56 are respectively supported. The swing drive can be performed by the dedicated motor 3 using the same cam structure as that of the fifth embodiment. In this case, the movable blade drive structures D1 and D2 swing the drive levers 55 and 56 by the dedicated motors 3.3, respectively. The reciprocating speed of the movable blades 23 and 27 of the cutting blade groups C1 and C2 can be freely adjusted.

(Modification 1) FIG. 22 shows Modification 1 in which the skin contact protrusion is changed. Here, the roller 87 is accommodated in the concave portion 106 formed on the inclined surface 86, and the upper peripheral surface thereof is made to protrude upward from the inclined surface 86. However, as in the first embodiment, the upper peripheral surface of the roller 87 is located below the virtual inclined surface Q passing through the holder inclined surface 94. Further, similarly to the first embodiment, the peripheral surface of the roller 87 is inclined along the inclined surface 86. When the upper peripheral surface of the roller 87 projects above the inclined surface 86 as described above, the roller 87 hits the skin surface before the inclined surface 86, and the roller 87 idles due to the frictional force with the skin surface. Soft and smooth skin contact during shaving can be achieved. Further, when the roller 87 is in contact with the skin surface, the beard can be cut while the roller 87 rotates and the razor head 2 moves lightly.

Seventh Embodiment FIG. 23 shows a seventh embodiment in which the movable blade drive structures D1 and D2 are changed. There, a drive gear 108 is fixed to the output shaft 3a of the motor 3, and eccentric cams 62 and 63 are provided on driven gears 109 and 110 disposed before and after the gear 108, and the front and rear drive levers 55 and 56 are reversed. Reciprocating rocking is possible in a state synchronized with the direction. In addition, the eccentric cams 62 and 63 are driven gears 109 and 63 so that the front eccentric cam 62 is at the 3 o'clock position on the clock face and the rear eccentric cam 62 is at the 9 o'clock position. 110 meshes with the drive gear 108. In this embodiment, the eccentric cams 62 and 63 and the cam grooves 64 and 65 constitute an operation conversion mechanism of the movable blade drive structures D1 and D2.

(Embodiment 8) FIG. 24 shows Embodiment 8 in which the movable blade drive structures D1 and D2 are changed. Here, the front and rear drive levers 55 and 56 are reciprocated by a linear motor (motor) 112. The linear motor 112 includes a movable magnet 113 fixed to the tip of the swing of the front and rear drive levers 55 and 56, and a fixed electromagnet 114 disposed on the head base 13 facing the movable magnet 113. 56 can be driven back and forth in a required drive pattern. For example, the front and rear drive levers 55 and 56 can be driven in a mutually synchronized state, or can be driven with the front and rear drive levers 55 and 56 having different reciprocating strokes and reciprocating speeds. In this embodiment, the linear motor 112 also serves as the motor 3 and an operation conversion structure. As described above, the electric shaver of the present invention includes the movable blade drive structures D1 and D2 that use the linear motor 112 as a power source.

  In the above-described embodiment, the motion converting structure is constituted by the eccentric cams 62 and 63 and the cam grooves 64 and 65. However, the motion converting structure is not necessary. The motion converting structure includes the drive levers 55 and 56 which reciprocate with the crank, the crank and the bell. It can be composed of a crank (corresponding to the drive levers 55 and 56), a plate cam and a bell crank circumscribing the peripheral surface thereof. In the above-described embodiment, the connection pins 57 to 61 and 66 are fixed to the drive levers 55 and 56. However, it is not necessary to fix the connection pins 57 to 61 and 66 to the movable blade frames 25 and 29. Alternatively, it may be formed integrally with the movable blade frames 25 and 29. The movable blade 23 of the main blades 16 and 18 does not need to be a slit blade, and may be a movable blade having a semicircular group of small blades. The coupling bodies 57 to 60 are not formed in a pin shape. A hollow shaft or a shaft having a polygonal cross section can be formed.

  In the first embodiment, the roller 87 is provided only on the sub-blade 19, but the roller 87 can also be provided on the first main blade 16, the center blade 17, and the second main blade 18. In this case, the rear peripheral surface and the inclined surface 86 of the roller provided on each of the cutting blades 16 to 19 are brought into contact with the skin surface, and the skin surface is directly pressed to the blade holes and slits of the fixed blades 22 and 26. Can be eliminated, and the skin contact of each of the cutting blades 16 to 19 can be made soft. Further, when the rollers 87 are provided on all the cutting blades 16 to 19 and all the cutting blades 16 to 19 are elastically supported so as to be vertically movable, the skin contact can be further softened. In the first embodiment, the skin contact projections 81 to 84 project upward from the tops of the fixed blades 22 and 26, but are not limited thereto, and are flush with the tops of the fixed blades 22 and 26. The projections 81 to 84 may be skin contact. As long as the skin contact projections 81 to 84 hit the skin surface due to the sinking of the cutting blades 16 to 19 into the skin, the skin contact projections 81 to 84 may be lower than the tops of the fixed blades 22 and 26 in some cases. It may be in a position form.

  In the above-mentioned embodiment, another embodiment, and the modification, the reciprocating electric shaver in which the movable blades 23 and 27 are reciprocated and slid on the fixed blades 22 and 26 is used. The present invention can be applied to a rotary electric shaver in which a blade is rotated around a horizontal axis and slides on a fixed blade. The movable blade of the cutting blade for finishing shaving and the movable blade of the cutting blade for rough shaving may both be of a rotary type, or the movable blade of the cutting blade for finishing shaving is of a rotary type and is used for rough shaving. The movable blade of the cutting blade may be of a reciprocating type. The plurality of cutting blades consisted of two finishing shaving cutting blades and two rough shaving cutting blades, but one finishing shaving cutting blade and one rough shaving cutting blade. It may be constituted by a cutting blade, or may be constituted by two cutting blades for finishing shaving and one cutting blade for rough shaving. The number and arrangement of the plurality of cutting blades can be variously changed without departing from the gist of the present invention.

  In the first embodiment, the buffer 95 is provided only on the fixed frame 28 of the cutting blade 19, but the buffer 95 can be provided on the fixed frames 24 and 28 of all the cutting blades 16 to 19. When the buffer portions 95 are provided on the fixed frames 24 and 28 of all the cutting blades 16 to 19, it is preferable to form the buffer inclined surfaces 96 on all the buffer portions 95.

The above embodiment, another embodiment, and modifications can be implemented in the following modes.
Cutting blades 16 to 19 having fixed blades 22 and 26 and movable blades 23 and 27 are arranged on the razor head 2.
The fixed blades 22 and 26 of the cutting blades 16 to 19 are supported by fixed blade frames 24 and 28,
At both left and right ends of the fixed blades 22 and 26, side end frames 24a and 28a of the fixed blade frames 24 and 28 are located,
When the razor head 2 is viewed from the front-back direction, the side end frames 24a and 28a are formed with inclined surfaces 85 and 86 that are inclined downward from the top to the side ends,
That is, the electric shaver characterized in that the side end frames 24a and 28a are formed with inclined surfaces 85 and 86 that are inclined downward toward the outside.
In this manner, when the inclined surfaces 85 and 86 that are inclined downward from the tops to the side ends of the side end frames 24a and 28a are formed, that is, the inclined surfaces 85 that are inclined downward and outward toward the side end frames 24a and 28a. When the ridges 86 are formed, when the razor head 2 is moved in the left-right direction to perform shaving, the skin contact can be made soft.

The above configuration,
An electric razor, characterized in that the inclined surfaces 85 and 86 are formed by outwardly curved curved surfaces.
As described above, when the inclined surfaces 85 and 86 are formed by the convex curved surfaces, the sliding movement of the skin surface in contact with the inclined surfaces 85 and 86 is performed smoothly, so that the skin contact is further soft and smooth. It can be.

The above configuration,
The fixed blade frames 24 and 28 are supported by a fixed blade holder 14 detachably mounted on the razor head 2,
An electric razor, wherein the inclined lower ends of the inclined surfaces 85 and 86 are located below the top of the holder side frame 14a of the fixed blade holder 14.
As described above, when the inclined lower ends of the inclined surfaces 85 and 86 are located below the top of the holder side frame 14a of the fixed blade holder 14, the top of the holder side frame 14a is inclined when shaving. By contacting the skin surface before the lower end, the inclined lower ends of the inclined surfaces 85 and 86 can be prevented from contacting the skin surface. Therefore, it is possible to prevent the inclined lower ends of the inclined surfaces 85 and 86 from biting into the skin surface, and to smooth the skin contact feeling.

The above configuration,
A holder inclined surface 94 is formed on the upper part of the holder side frame 14a when the razor head 2 is viewed from the front-rear direction, the holder inclined surface 94 being inclined downward from the top side to the side end side.
That is, on the upper part of the holder side frame 14a of the fixed blade holder 14, a holder inclined surface 94 which is inclined downward outward is formed.
Assuming a virtual inclined surface Q extending above the fixed blade 26 through the holder inclined surface 94, the inclined surfaces 85 and 86 are located below the virtual inclined surface Q.
The inclined planes 85 and 86 are located below the virtual inclined plane Q passing through the holder inclined plane 94 because the holder inclined plane 94 is not covered when the razor head 2 is moved in the left-right direction to perform beard cutting. This is because, after making contact with the surface, the inclined surfaces 85 and 86 are brought into contact with the skin surface. As described above, if the inclined surfaces 85 and 86 are brought into contact with the skin surface after the holder inclined surface 94 comes into contact with the skin surface, the skin contact during shaving can be made soft and smooth. .

The above configuration,
An electric razor, wherein fixed blades 22 and 26 and movable blades 23 and 27 of the cutting blades 16 to 19 are elastically supported so as to be vertically movable with respect to the razor head 2.
As described above, when the fixed blades 22 and 26 and the movable blades 23 and 27 are elastically supported so as to be vertically movable, the skin contact during shaving can be made soft.

Further, the above embodiment, another embodiment, and modifications can be implemented in the following modes.
A plurality of cutting blades 16 to 19 having fixed blades 22 and 26 and movable blades 23 and 27 are arranged on the razor head 2,
Movable blade drive structures D1 and D2 for reciprocally driving the movable blades 23 and 27 include a motor 3, drive levers 55 and 56 for transmitting the power of the motor 3 to the movable blades 23 and 27, and coupling bodies 57 to 60. Yes,
The drive levers 55 and 56 are arranged so as to intersect with the reciprocating directions of the movable blades 23 and 27, and one end is supported so as to be capable of reciprocating swing on swing center shafts 68 and 69,
Connecting bodies 57 to 60 are arranged at a plurality of positions in the longitudinal direction of the drive levers 55 and 56 vertically opposed to the movable blades 23 and 27,
An electric razor, wherein the distance between each of the connecting bodies 57 to 60 and the swing center shafts 68 and 69 is different.
As described above, when the movable blades 23 and 27 are swingably driven by the drive levers 55 and 56, the plurality of movable blades 23 and 27 can be simultaneously moved back and forth while reciprocating in the left-right direction. By causing the movable blades 23 and 27 to exert the pulling action, the whiskers can be cut smoothly and accurately. Further, the distance between each of the connecting bodies 57 to 60 and the swing center shafts 68 and 69 is made different so that the left and right strokes of the movable blades 23 and 27 driven by the drive levers 55 and 56 differ greatly. . According to such movable blade drive structures D1 and D2, when the reciprocating speed of the movable blades 23 and 27 on the side with the smaller left-right stroke is the same as the reciprocating speed of the conventional movable blade, the movable blade on the side with the larger left-right stroke is used. By increasing the reciprocating speed of 23 and 27, whisker cutting can be performed effectively.

The above configuration,
Blade holes for beard introduction are formed in each of the fixed blades 22 and 26,
The opening area of the blade holes of the fixed blades 22 and 26 on the side close to the swing center axes 68 and 69 of the drive levers 55 and 56 is fixed to the fixed blade 22 on the side far from the swing center axes 68 and 69 of the drive levers 55 and 56. -An electric razor characterized by being set larger than the opening area of 26 blade holes.
As described above, compared to the opening areas of the blade holes of the fixed blades 22 and 26 farther from the swing center shafts 68 and 69, the blade holes of the fixed blades 22 and 26 closer to the swing center shafts 68 and 69 are smaller. If the opening area is set to be large, it is possible to shave early by introducing more whiskers for the large opening area. In addition, since the rocking torque increases as the distance from the rocking center shafts 68 and 69 increases, a large amount of whiskers introduced from the fixed blades 22 and 26 can be reliably cut to reduce the driving load of the motor 3.

The above configuration,
An electric razor, characterized in that the fixed blades 22 and 26 on the side of the drive levers 55 and 56 near the swing center axes 68 and 69 are formed by slit blades.
In this manner, when the fixed blades 22 and 26 on the side close to the swing center shafts 68 and 69 are formed by slit blades, compared with the case where the fixed blades 22 and 26 are formed by mesh blades, the curly and long hairs are slit. It can be more reliably captured by the blade and can be accurately introduced into the fixed blades 22 and 26. Therefore, the beard can be effectively cut even when the user has a thick beard or has a lot of curly hair.

The above configuration,
A pair of cutting blade groups C1 and C2 including a plurality of cutting blades 16 to 19 are arranged on the razor head 2, and a movable blade drive structure D1 and D2 are provided for each of the cutting blade groups C1 and C2.
The drive lever 55 forming the movable blade drive structure D1 of the one cutting blade group C1 and the drive lever 56 forming the movable blade drive structure D2 of the other cutting blade group C2 are connected to each other by the movable blade drive structures D1 and D2. An electric razor characterized by being driven to swing in a state synchronized in the opposite direction.
As described above, when the drive levers 55 and 56 are oscillated in synchronization with each other in opposite directions, the vibrations when the movable blades 23 and 27 reciprocate can cancel each other, and therefore, the skin is unpleasant. The action of vibration can be eliminated, and the whiskers can be cut more smoothly.

The above configuration,
The swing center axis 68 of the drive lever 55 constituting the movable blade drive structure D1 of one cutting blade group C1, and the swing center axis 69 of the drive lever 56 constituting the movable blade drive structure D2 of the other cutting blade group C2. Are arranged separately with the motor 3 in between,
The movable blade drive structures D1 and D2 include an operation conversion structure that converts the rotational power of the motor 3 into a reciprocating swing operation.
An electric razor, wherein each of the driving levers 55 and 56 is simultaneously driven to swing in opposite directions by a single motor 3 via an operation converting structure.
As described above, the swing center shafts 68 and 69 of the pair of drive levers 55 and 56 are separately arranged with the motor 3 interposed therebetween, and each of the drive levers 55 and 56 is operated by one motor 3 via the motion conversion structure. Simultaneously, the movable blades 23 and 27 of the cutting blade groups C1 and C2 can be reciprocally driven by only one motor 3 by swinging in the opposite directions. Therefore, compared with the case where each of the drive levers 55 and 56 is driven by the dedicated motor 3, the structure of the movable blade drive structures D1 and D2 can be simplified and the overall cost can be reduced.

The above configuration,
An electric converter characterized in that the motion converting structure is constituted by eccentric cams 62 and 63 fixed to the output shaft 3a of the motor 3, and cam grooves 64 and 65 formed at the swinging tips of the drive levers 55 and 56. Razor.
As described above, according to the operation conversion structure constituted by the eccentric cams 62 and 63 and the cam grooves 64 and 65, the rotational power of the motor 3 is converted into a swing operation only by rotating the eccentric cams 62 and 63. The drive levers 55 and 56 can swing back and forth. In addition, since the eccentric cams 62 and 63 and the cam grooves 64 and 65 having a simple structure can convert the rotational power into a swinging operation, the cost required for manufacturing the operation conversion structure can be reduced, and the structure can be reduced for a long time. The reliability of the operation conversion function during use can be improved.

The above configuration,
One drive lever 55 and the other drive lever 56 are arranged before and after the central axis of the motor 3,
An electric razor, wherein at least one of the front and rear drive levers (56) is inclined with respect to the front and rear center axis of the razor head (2) perpendicular to the center axis of the motor (3).
As described above, when one of the front and rear drive levers 56 is inclined with respect to the front and rear center axis of the razor head 2 which is orthogonal to the center axis of the motor 3, the front and rear movement component when the drive lever 56 swings is obtained. And the front and rear strokes of the movable blades 23 and 27 can be increased. In addition, as the front and rear strokes of the movable blades 23 and 27 are large, the cutting action of the movable blades 23 and 27 is enhanced, and the whisker cutting can be performed more effectively.

The above configuration,
At a plurality of locations of one drive lever 55 and the other drive lever 56, a plurality of coupling bodies 57 to 60 are arranged, respectively.
An electric razor characterized in that the distance from the center of the swing center axes 68 and 69 of the drive levers 55 and 56 to the centers of the individual connecting bodies 57 to 60 is different.
As described above, if the distances from the center axes of the swing center axes 68 and 69 of the drive levers 55 and 56 to the centers of the individual coupling bodies 57 to 60 are different, the left and right directions of the movable blades 23 and 27 are different. The reciprocating stroke S1 and the back-and-forth movement amount T1 can be changed to be large or small according to the difference in the distance. Therefore, by appropriately arranging the movable blades 23 and 27 in accordance with the structure and the cutting characteristics of the cutting blades 16 to 19, the whiskers can be cut smoothly and accurately.

The above configuration,
The cutting blade groups C1 and C2 are composed of cutting blades 16 and 18 for finish shaving and cutting blades 17 and 19 for rough shaving.
The fixed blade 22 and the movable blade 23 of the cutting blades 16 and 18 for finishing shaving, and the fixed blade 26 and the movable blade 27 of the cutting blades 17 and 19 for rough shaving are supported by the razor head 2 so as to be vertically movable. Urged by springs 31 and 77,
Fixed blade frames that support the fixed blades 22 at the left and right ends of the fixed blades 22 of the finishing blades 16 and 18 and the left and right ends of the fixed blades 26 of the cutting blades 17 and 19 for rough shaving. 24 and 28 are provided with side end frames 24a and 28a, and at the upper ends of the side end frames 24a and 28a, there are provided skin contact protrusions 81 to 84 projecting upward from the tops of the fixed blades 22 and 26,
Assuming a horizontal virtual reference line P (a virtual reference line parallel to the reciprocating direction of the movable blades 23 and 27) located below the sliding surface of the movable blades 23 and 27 with respect to the fixed blades 22 and 26,
In a natural state where no pressing load is applied to the skin, the vertical height from the virtual reference line P to the tops of the skin contact protrusions 82 and 84 provided on the fixed blade 26 of the cutting blades 17 and 19 for rough shaving is determined. When the height from the virtual reference line P to the top of the skin contact protrusions 81 and 83 provided on the fixed blades 22 of the cutting blades 16 and 18 for finishing shaving is H2, the inequality H1> H2 is satisfied. Projections 81 to 84 are arranged for each skin so that
In a natural state where no pressing load is applied to the skin, the vertical height from the virtual reference line P to the tops of the fixed blades 22 of the cutting blades 16 and 18 for finishing shaving is H3, and the vertical shading from the virtual reference line P is rough. Wherein the fixed blades 22 and 26 are arranged so that the inequality H3 ≧ H4 is satisfied when the vertical height of the cutting blades 17 and 19 to the top of the fixed blade 26 is H4. .
Thus, in the electric shaver in which the skin contact protrusions 81 to 84 are provided on the side end frames 24a and 28a of the fixed blade frames 24 and 28, the height relationship between the skin contact protrusions 81 to 84 and the tops of the fixed blades 22 and 26. Satisfy (H1> H2). The height relationship between the tops of the fixed blades 22 of the cutting blades 16 and 18 for finishing shaving and the tops of the fixed blades 26 of the cutting blades 17 and 19 for rough shaving is set so as to satisfy (H3 ≧ H4). . According to such an electric razor, it is possible to restrict the skin surface from digging into the fixed blade 26 of the cutting blades 17 and 19 for rough shaving by the skin contact projections 81 to 84, so that the burden on the skin surface during shaving can be reduced. .

The above configuration,
An electric razor, characterized in that the razor head 2 has slanted surfaces 85 and 86 that are inclined downward from the top to the side end at the skin contact protrusions 81 to 84 when the razor head 2 is viewed from the front-back direction.
In this manner, when the inclined surfaces 85 and 86 that are inclined downward from the tops to the side ends of the skin contact protrusions 81 to 84 are formed, the razor head 2 is moved while moving along the longitudinal direction of each of the fixed blades 22 and 26. When cutting, the fixed blades 22 and 26 can be sunk smoothly to make the skin contact soft.

The above configuration,
An electric razor, characterized in that the inclined surfaces 85 and 86 are formed by outwardly curved curved surfaces.
As described above, when the inclined surfaces 85 and 86 are formed by the convex curved surfaces, the sliding movement of the skin surface in contact with the inclined surfaces 85 and 86 is performed smoothly, so that the skin contact is further soft and smooth. It can be.

The above configuration,
The fixed blade frames 24 and 28 are supported by a fixed blade holder 14 detachably mounted on the razor head 2,
An electric razor, wherein the inclined lower ends of the inclined surfaces 85 and 86 are located below the top of the holder side frame 14a of the fixed blade holder 14.
As described above, when the inclined lower ends of the inclined surfaces 85 and 86 are located below the top of the holder side frame 14a of the fixed blade holder 14, the top of the holder side frame 14a is inclined when shaving. By contacting the skin surface before the lower end, the inclined lower ends of the inclined surfaces 85 and 86 can be prevented from contacting the skin surface. Therefore, it is possible to prevent the inclined lower ends of the inclined surfaces 85 and 86 from biting into the skin surface, and to smooth the skin contact feeling.

The above configuration,
A holder inclined surface 94 is formed on the upper part of the holder side frame 14a when the razor head 2 is viewed from the front-rear direction, the holder inclined surface 94 being inclined downward from the top side to the side end side.
Assuming a virtual inclined surface Q extending above the fixed blade 26 through the holder inclined surface 94, the inclined surfaces 85 and 86 are located below the virtual inclined surface Q.
The inclined planes 85 and 86 are located below the virtual inclined plane Q passing through the holder inclined plane 94 because the razor head 2 is moved along the reciprocating direction of each movable blade 23 and 27 to perform whisker cutting. This is because, when performing, after the holder inclined surface 94 is brought into contact with the skin surface, the inclined surfaces 85 and 86 are brought into contact with the skin surface. As described above, after the holder inclined surface 94 is brought into contact with the skin surface, the inclined surfaces 85 and 86 are brought into contact with the skin surface, thereby preventing the fixed blades 22 and 26 from being strongly pressed against the skin surface. In addition, the skin contact at the time of shaving can be made soft and smooth.

The above configuration,
At least in the inner corner between the fixed blade 26 and the side edge frame 28a of the fixed blade frame 28 of the cutting blades 17 and 19 for rough shaving, a buffer portion 95 that covers the outer surface of the side edge of the fixed blade 26 is formed. Characterized by an electric razor.
As described above, when the buffer portion 95 is provided at the inner corner between the side edge frame 28a of the fixed blade frame 28 and the fixed blade 26, the skin contact protrusion 84 protruding upward from the fixed blade 26 becomes The bumper 95 can prevent the skin surface from being greatly dented by hitting the skin surface prior to the above. Further, since the skin surface is not greatly dented by the skin contact protrusion 84, the skin contact at the time of shaving can be made smooth.

The above configuration,
An electric razor, wherein a shock-absorbing inclined surface 96 is formed on the shock-absorbing portion 95 so as to be inclined downward toward the fixed blade 26.
As described above, when the cushioning inclined surface 96 is formed in the buffering portion 95, the area of the buffering portion 95 continuous with the skin contacting projection 84 can be increased, and the buffering inclined surface 96 extending from the skin contacting projection 84 to the fixed blade 26 can be formed. By making the surface change gradual, it is possible to further soften and smooth the skin contact when shaving. Further, when the skin surface slides from the fixed blade 26 toward the skin contact protrusion 84, the skin surface is smoothly guided by the cushioning inclined surface 96, and the skin surface crosses the skin contact protrusion 84. Operation can be performed smoothly.

The above configuration,
A cutting blade 19 for rough shaving is arranged on at least one of the front end and the rear end of the razor head 2,
On the left and right side end frames 28a of the fixed blade frame 28 of the cutting blade 19 for rough shaving, a skin contact protrusion 84a is formed which protrudes before or after the fixed blade 26 of the cutting blade 19. Electric razor.
The cutting blades 19 for rough shaving are arranged on at least one of the front end and the rear end of the razor head 2, and fixed blades 26 of the cutting blade 19 are mounted on left and right side end frames 28 a of a fixed blade frame 28 of the cutting blade 19. A skin contact projection 84a projecting forward or backward is provided. According to such an electric razor, the skin contact projection 84a is brought into contact with the skin surface prior to the fixed blade 26 of the cutting blade 19 composed of a slit blade, so that the skin contact at the time of shaving is further soft and smooth. can do.

The above configuration,
An electric razor, characterized in that a notch 89 is formed on one of the front and rear frames of the fixed blade holder 14 so as to project the skin contact projection 84a out of the front and rear frames.
In this manner, when the cutout 89 for the skin contact protrusion 84a is formed in the fixed blade holder 14, the skin contact protrusion 84a is brought into contact with the skin surface prior to the fixed blade 26 of the cutting blade 19, and the shaving is performed. The skin contact at the time can be made softer and smoother. At this time, since the fixed blade holder 14 does not interfere with the exposure of the skin contact protrusion 84a, the compact razor head 2 can be configured.

The above configuration,
The spring load of the spring 31 that pushes up and urges the fixed blade 26 of the cutting blades 17 and 19 for rough shaving is smaller than the spring load of the spring 31 that pushes up and urges the fixed blade 22 of the cutting blades 16 and 18 for finishing shaving. An electric razor characterized by being set.
As described above, when the tension of the spring 31 that pushes up and urges the fixed blade 26 for rough shaving is set smaller than the tension of the spring 31 that pushes up and urges the fixed blade 22 for finishing shaving, the fixed blade 26 for rough shaving is set. By a smaller external force, the tension of the spring 31 acting on the skin surface can be reduced. Therefore, it is possible to prevent the skin surface from being pushed back by a large force and greatly deforming into a dent, so that the fixed blade 26 for rough shaving can have a soft and smooth skin contact.

The above configuration,
An electric razor, wherein the skin contact projections 81 to 84 and 84a are constituted by rollers 87 rotatable around a horizontal axis in the left-right direction.
As described above, when the projection 84 is constituted by the rotatable roller 87, the roller 87 rotates when the razor head 2 slides along the skin surface, so that the razor head 2 can be moved lightly and smoothly. While cutting a beard. Also, the razor head 2 can be smoothly slid along the skin surface by the amount of the rotation of the roller 87, so that the shaving can be performed lightly in a shorter time.

The above configuration,
An electric razor, wherein the peripheral surface of the roller 87 is inclined flush with the inclined surfaces 85 and 86.
As described above, when the peripheral surface of the roller 87 is inclined to be flush with the inclined surface 86, the skin surface is caught by the roller 87 when the razor head 2 is moved along the center axis of the roller 87. Can be prevented by the inclined surface 86. Accordingly, when necessary, the roller 87 in contact with the skin surface is rotated to smooth the movement of the razor head 2, and it is possible to prevent the roller 87 from obstructing the sliding movement of the skin surface in the left-right direction.

The above configuration,
A pair of rollers 87 has conductivity,
An electric razor comprising a pair of rollers (87) provided with a current supply source (90) for supplying a weak current of a positive polarity and a negative current.
As described above, according to the electric shaver provided with the pair of conductive rollers 87 and the current supply source 90 that supplies a weak current having a different polarity to each roller 87, the beard is applied while applying a current stimulus to the skin surface. Cutting can be performed.

Further, the above embodiment, another embodiment, and modifications can be implemented in the following modes.
A plurality of cutting blades 16 to 19 having fixed blades 22 and 26 and movable blades 23 and 27 are arranged on the razor head 2,
Fixed blade frames 24 and 28 supporting the fixed blades 22 and 26 are respectively mounted on the fixed blade support base 30, and the fixed blade support base 30 is removably mounted on the fixed blade holder 14.
The fixed blade support base 30 is provided with a pair of left and right resiliently deformable detachable arms 46 and a pair of left and right separation protrusions 47 for releasing the engagement of the arms 46, and an engaging claw 50 provided on the detachable arm 46. Are engaged with the engagement recesses 49 of the fixed blade holder 14,
The fixed blade holder 14 is detachably mounted on the head base 13 of the razor head 2,
The head base 13 of the razor head 2 is provided with a pair of removal buttons 36 each having an engagement step 41 that engages with and disengages from the engagement claw 43 of the fixed blade holder 14 mounted on the head base 13. Are elastically urged outward by a button spring 37,
The inner surface of the removal arm 46 of the fixed blade support base 30 is received by a receiving wall 39 provided above the removal button 36, and the separation projection 47 projects outward from the fixed blade holder 14 from the upper outer surface of the removal button 36. Yes,
The removal button 36 is grasped with one finger, and the separation projection 47 is grasped with the other finger, and the removal button 36 and the separation projection 47 are simultaneously pressed against the urging force of the button spring 37 and the elastic force of the removal arm 46. An electric razor wherein the fixed blade holder 14 is detached from the head base 13 and operated.
As described above, the removal button 36 for the fixed blade holder 14 is provided on the head base 13 of the razor head 2, and the detaching operation by the removal button 36 is assisted by the separation protrusion 47 provided on the fixed blade support base 30. According to the razor, the release button 36 can be disengaged with both hands. More specifically, the removal button 36 is grasped with one finger and the separation protrusion 47 is grasped with the other finger, and the removal button 36 and the separation protrusion 47 are simultaneously pressed against the urging force of the button spring 37 and the elastic force of the removal arm 46. By performing the pushing operation, the release button 36 can be disengaged. Therefore, in a state where the pushing force acting on the release button 36 is increased as compared with the case where only the release button 36 is pushed in, the removal button 36 is pushed firmly and lightly so that the engagement of the release button 36 is achieved. The step portion 41 is disengaged from the engagement claw 43, and the fixed blade holder 14 can be removed from the head base 13.

2 Razor head 13 Head base 14 Fixed blade holder 16 First main blade (cutting blade)
17 Center blade (cutting blade)
18 2nd main blade (cutting blade)
19 Sub blade (cutting blade)
22 Fixed blades of first main blade and second main blade 23 Movable blades of first main blade and second main blade 24 Fixed blade frame of first main blade and second main blade 25 First main blade and second main blade Movable blade frame 26 fixed blade of center blade and sub-blade 27 movable blade of center blade and sub-blade 28 fixed blade frame of center blade and sub-blade 29 movable blade frame of center blade and sub-blade 30 fixed blade support base 55 front side Drive lever 56 Rear drive lever 57-60 Connection pin 62, 63 Eccentric cam 64, 65 Cam groove 68, 69 Central axis of swing.
81 to 84 Skin contact protrusion 85/86 Inclined surface 87 Roller C1 / C2 Cutting blade group D1 / D2 Movable blade drive structure P Virtual reference line

Claims (2)

A plurality of cutting blades (16 to 19) having a fixed blade (22/26) and a movable blade (23/27) are arranged on the razor head (2),
The plurality of cutting blades (16 to 19) include a cutting blade (16/18) for finishing shaving and a cutting blade (17/19) for rough shaving.
The fixed blade (22) and the movable blade (23) of the cutting blades (16 and 18) for finishing shaving, and the fixed blade (26) and the movable blade (27) of the cutting blades (17 and 19) for rough shaving, respectively Is supported so as to be vertically movable with respect to the razor head (2),
The fixed blades (22) of the cutting blades (16, 18) for finishing shaving and the left and right ends of the fixed blade (26) of the cutting blades (17, 19) for rough shaving are respectively attached to the fixed blades (26). Side frames (24a, 28a) of the fixed blade frames (24, 28) for supporting the fixed blades (22, 26) are provided on the upper ends of the side edge frames (24a, 28a). There are provided skin contact protrusions (81 to 84) protruding upward,
Assuming a virtual reference line (P) located below the sliding surface of the movable blade (23/27),
The vertical height from the virtual reference line (P) to the top of the skin contact protrusion (82, 84) provided on the fixed blade (26) of the cutting blade (17, 19) for rough shaving is (H1), When the vertical height from the virtual reference line (P) to the top of the skin contact protrusion (81, 83) provided on the fixed blade (22) of the cutting blade (16, 18) for finishing shaving is (H2) , The projections (81 to 84) per skin are arranged so as to satisfy the inequality (H1> H2),
The vertical height from the virtual reference line (P) to the top of the fixed blade (22) of the cutting blade (16, 18) for finishing shaving is (H3), and the cutting blade for rough shaving from the virtual reference line (P). when the upper and lower height to the top of the (17, 19) of the fixed blade (26) and (H4), is arranged a respective fixed blade (22, 26) so as to satisfy the inequality (H3 ≧ H4) ,
At least at the inner corner between the fixed end frame (28a) and the fixed blade (26) of the fixed blade frame (28) of the cutting blade (17, 19) for rough shaving, the outer side surface of the fixed blade (26) is attached. An electric razor, wherein a covering buffer (95) is formed . The electric shaver according to claim 1, wherein the buffer (95) is formed with a buffer inclined surface (96) inclined downward toward the fixed blade (26) .

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