JP2018033890A - Electric razor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric razor capable of rapidly and effectively cutting beards according to differences in the beard length, dense degree of beards or the like.SOLUTION: There is provided an electric razor which comprises a body case 1 and a razor head 2 supported by the body case 1. Movable blades 14 and 101 and a cylindrical fixed blade 15 surrounding the periphery of the movable blades 14 and 101 are provided on the razor head 2. A cutting blade 44 and a cutting zone having a blade hole 45 are provided on the entire peripheral surface of the fixed blade 15. The movable blades 14 and 101 have small blades 19 and 103 for cutting beards in cooperation with the cutting blade 44 formed on the entire peripheral surface of the fixed blade 15. The fixed blade 15 is provided so as to project to one end of the long axis-like body case 1 which also functions as a grip. The fixed blade 15 is provided so that the long axis direction of the cylindrical fixed blade 15 and the long axis direction of the body case 1 are substantially identical to each other. A plurality of cutting zones different in formation pattern of the blade hole 45 are adjacently provided in the peripheral direction of the peripheral surface of the fixed blade 15.SELECTED DRAWING: Figure 6

Description

  The present invention relates to an electric razor including a fixed blade and a movable blade.

  This type of electric razor is disclosed in Patent Document 1, for example. In the electric razor of Patent Document 1, a cylindrical mesh outer blade (fixed blade) is provided at the upper part of the main body case, and an inner blade body (movable blade) that is rotationally driven is provided inside the mesh outer blade. The inner blade body has a pair of end plates and an intermediate plate fixed above and below the rotation shaft as a support structure, and two rectangular inner blade pieces are mounted around the end plate and the intermediate plate, Each inner blade piece is pressed against the reticulated outer blade by a leaf spring piece mounted on the opposite surface of the plate. When the switch provided on the main body case is turned on, the motor is activated and the inner blade body is rotationally driven, so that the whisker entering from the blade hole of the mesh outer blade can be cut with the inner blade body.

Japanese Utility Model Publication No. 56-54068

  According to the electric razor of Patent Document 1, since the mesh-shaped outer blade is held in a cylindrical shape, the whisker can be cut on any peripheral surface of the mesh-shaped outer blade. However, although the reticulated outer blade has a cutting region for shaving short hair, no beard cutting region corresponding to long hair or comb hair is formed.

  An object of the present invention is to provide an electric razor capable of performing beard cutting quickly and effectively in accordance with the length of the beard and the difference in the density of the beard.

  The electric razor according to the present invention includes a main body case 1 and a razor head 2 supported by the main body case 1. The razor head 2 is provided with movable blades 14 and 101 and a cylindrical fixed blade 15 surrounding the movable blades 14 and 101. A cutting region having a cutting edge 44 and a blade hole 45 is provided on the entire peripheral surface of the fixed blade 15. The movable blades 14 and 101 include small blades 19 and 103 that cut the beard in cooperation with the cutting blades 44 formed on the entire peripheral surface of the fixed blade 15. A fixed blade 15 is provided so as to protrude from one end of a long-axis main body case 1 that also serves as a grip. The long axis direction of the cylindrical fixed blade 15 and the long axis direction of the main body case 1 are provided so as to substantially coincide. A plurality of cutting regions having different formation patterns of the blade holes 45 are provided adjacent to each other in the circumferential direction of the peripheral surface of the fixed blade 15.

  The cutting region includes at least short hair cutting regions Z1 and Z2 that mainly cut short hairs, and long hair cutting regions Z3 that mainly cut long hairs.

  The long hair cutting region Z3 includes a slit-like blade hole 45. The longitudinal direction of the blade hole 45 in the long hair cutting region Z <b> 3 is provided along the circumferential direction of the fixed blade 15.

  When a plurality of cutting regions having different formation patterns of the blade holes 45 are provided adjacent to each other in the circumferential direction of the peripheral surface of the fixed blade 15, each cutting is performed according to the length of the whiskers or the difference in the density of the whiskers. By properly using the regions, the beard cutting can be performed quickly and effectively.

  After cutting long hairs in the long hair cutting region Z3, finishing shave can be performed in the short hair cutting regions Z1 and Z2. In addition, since the short hair cutting regions Z1 and Z2 and the long hair cutting region Z3 are provided adjacent to each other in the circumferential direction, by rotating the fixed blade 15 around the axis while being in contact with the skin surface, Can be cut continuously.

  Since the longitudinal direction of the slit-like blade hole 45 in the long hair cutting region Z3 is provided along the circumferential direction of the fixed blade 15, when the fixed blade 15 is rotated around the axis while being in contact with the skin surface, the long hair is introduced. Easy to cut long hairs.

It is sectional drawing which shows the cutting blade structure of the electric razor which concerns on Example 1. FIG. 1 is a side view of an electric razor according to Embodiment 1. FIG. It is a vertical side view of the razor head of the electric razor which concerns on Example 1. FIG. 1 is an exploded cross-sectional view of a razor head of an electric razor according to Embodiment 1. FIG. It is a front view of the movable blade of the electric razor which concerns on Example 1. FIG. It is the sectional view on the AA line in FIG. It is an expanded view of the fixed blade of the electric razor which concerns on Example 1. FIG. It is explanatory drawing which shows the manufacture process of the fixed blade of the electric razor which concerns on Example 1. FIG. It is a vertical side view of the elastic moderation structure of the electric razor which concerns on Example 1. FIG. It is a vertical side view which shows another operation | movement of an elastic moderation structure. 6 is a cross-sectional view of a fixed blade of an electric razor according to Embodiment 2. FIG. 6 is a sectional view of a fixed blade of an electric razor according to Embodiment 3. FIG. It is a front view of the fixed blade of the electric razor which concerns on Example 4. FIG. It is a front view of the fixed blade of the electric razor which concerns on Example 5. FIG. 10 is a side view of an electric razor according to Embodiment 6. FIG. It is a schematic side view which shows the power transmission structure of the electric shaver which concerns on Example 6. FIG. It is sectional drawing which shows the cutting blade structure of the electric razor which concerns on Example 7. FIG. It is a front view of the movable blade and sleeve of an electric razor concerning Example 7. FIG. 10 is an exploded perspective view of a movable blade and a sleeve of an electric razor according to a seventh embodiment. It is a side view of a reciprocating drive type electric shaver to which the present invention is applied. It is a vertical side view which shows the power transmission structure in the electric shaver of FIG. 10 is a front view of a fixed blade of an electric razor according to a modification of Example 5. FIG.

Example 1 FIGS. 1 to 10 show Example 1 in which the present invention is applied to a stick-type electric razor having a cylinder-shaped razor head. In the present embodiment, front and rear, left and right, and up and down follow the cross arrows shown in FIG. As shown in FIG. 2, the electric razor according to this embodiment includes a long-axis main body case 1 that also serves as a grip, and a long-axis razor head 2 that protrudes from one end of the main body case 1. The main body case 1 is composed of a base case 3 and a head side case 5 connected to the base case 3 so as to be swingable by a rotation shaft (bending shaft) 4. A control board 7 is accommodated, and a motor 8 and a speed reduction unit 9 are arranged inside the head side case 5. A switch button 10 for starting or stopping the motor 8 is provided on the front surface of the base case 3. On the left and right side surfaces of the base case 3 and the head side case 5, rib-like finger hooking projections 11 along the axis P of the main body case 1 are formed. Although not shown, the speed reduction unit 9 is composed of a planetary gear type speed reduction unit, which reduces the rotational power of the motor 8 to a quarter and outputs it.

  As shown in FIGS. 3 and 6, the razor head 2 has a long movable blade 14, a long fixed blade 15 surrounding the movable blade 14, and a movable blade support that supports the movable blade 14. A shaft (support shaft) 16, a head cap 17 that is attached to the movable blade support shaft 16 and retains the movable blade 14 and the fixed blade 15 are provided. The movable blade 14 is a cylindrical movable blade shaft 18 that is rotationally driven by the power of the previous motor 8, four small blades 19 that are mounted and fixed from one end to the other end around the movable blade shaft 18; A driven gear 20 fixed to the lower end of the movable blade shaft 18 and a thrust ring 21 fixed to the upper end of the movable blade shaft 18 are provided. The small blade 19 cuts the beard in cooperation with the cutting blade 44 formed on the entire peripheral surface of the cylindrical fixed blade 15. The movable blade shaft 18 and the small blade 19 are each formed of stainless steel, and a plurality of locations on the mounting base end 19a of each small blade 19 are fixed to the movable blade shaft 18 by welding. This welding location (fixed structure) is indicated by reference numeral 22. As described above, in the electric shaver in this embodiment, the movable blade 14 is provided inside the fixed blade 15 formed in a cylindrical shape (cylinder shape), and the tip of the small blade 19 is in contact with the inner surface of the fixed blade 15. The beard is cut by sliding. The fixing structure of the mounting base end 19a of each small blade 19 may be a screw fastening structure or a caulking fixing structure other than welding. The driven gear 20 does not have to be separate from the movable blade shaft 18 and may be formed integrally with the movable blade shaft 18. The movable blade support shaft (support shaft) 16 is not limited to the configuration in which the movable blade 14 is supported, and is provided only for supporting both the fixed blades 15 as will be described later. Also good. In this case, the support shaft 16 is not limited to a rod-like shape having a circular cross section, but may be a rod-like shape having a rectangular cross-section or a rod-like shape having a fan-like cross section.

  As shown in FIGS. 4 and 5, a continuous wave cutting edge 25 is formed at the tip of the small blade 19, and the curved opening 26 is intermittently formed in the small blade wall continuous with the recessed edge of the cutting blade 25. And another cutting blade 28 is formed at the opening edge of the opening 26 on the side of the fluff accumulation portion 27. Most of the curved cutting blade 28 is inclined with respect to the axis (long axis) P of the movable blade shaft 18. A line connecting the protruding edge 25 (tip) of the continuous waveform is provided in parallel with the axis of the movable blade shaft 18. If the cutting edge 25 having a continuous waveform is formed at the tip of the small blade 19, the tip of the small blade 19 can be brought into close contact with the fixed blade 15, and further, the cutting can be performed by the inclined blade portion of the cutting blade 25. Can be carried out effectively. Similarly, since the beard can be cut by the curved cutting blade 28, the beard can be cut sharply with good sharpness. Further, when the curved opening 26 is formed along the recessed edge of the cutting blade 25, the hair adhering to the inner surface of the fixed blade 15 can be introduced from the opening 26 and held in the hair accumulation part 27. Therefore, it can be well prevented that the fluff is discharged out of the cutting blade 25 and scattered from the blade hole 45 of the fixed blade 15. Furthermore, since the chance of capturing the beard by the cutting blade 25 provided at the cutting edge of the small blade 19 and the cutting blade 28 provided at the opening 26 increases, the beard cutting can be performed more effectively.

  As described above, when the cutting blades 25 and 28 are formed at the tip of the small blade 19 and the opening edge of the opening 26 on the side of the fluff accumulation portion 27, the cutting blade 25 is provided only at the tip of the small blade 19. Compared to the above, it is possible to increase the opportunities for cutting the beard and effectively cut the beard accordingly. As shown in FIG. 1, the cutting edge angle θ1 of the cutting edge 25 provided at the tip of the small blade 19 is set larger than the cutting edge angle θ2 of the cutting edge 28 on the opening 26 side (see FIG. 1). This is because the beard that is difficult to cut is captured by the cutting blade 25 at the tip of the small blade 19 and dragged into the fixed blade 15, and the beard in this state is cut by the cutting blade 28 on the sharper opening 26 side. This is to enable shave.

  In the above electric razor, in order to prevent the chips cut by the movable blade 14 from being scattered outside the fixed blade 15, the tip of the small blade 19 slidably contacting the inner surface of the fixed blade 15 and the movable blade shaft 18. Between the mounting base ends 19a of the small blades 19 fixed to the dents, a dent collecting portion 27 for storing the swarf cut by the small blades 19 is formed as a recess. As shown in FIG. 1, when assuming a virtual reference line Q that is orthogonal to the tangent line T of the front peripheral surface of the movable blade shaft 18 and passes through the contact point of the tangent line, the fluff accumulation portion 27 is moved from the virtual reference line Q to the movable blade. 14 is formed with a curved surface that is recessed toward the upper side in the rotational direction, and the tip of the small blade 19 including the cutting edge 25 protrudes from the virtual reference line Q toward the lower side in the rotational direction of the movable blade 14 by the dimension a. I am letting. Furthermore, as shown in FIG. 5 and FIG. 6, the chip collection part 27 is inclined from the lower end toward the upper end of the movable blade shaft 18, and the chip collection unit 27 is closer to the upper end of the movable blade shaft 18. The depth of the dent is increased. The mounting base end 19 a of the small blade 19 fixed to the movable blade shaft 18 is formed by a plane along the tangent line T of the peripheral surface of the movable blade shaft 18.

  The movable blade support shaft 16 is made of a stainless steel round shaft, and a flange wall 16 a provided at the lower end thereof is insert-fixed to the upper wall of the head side case 5. Bearings (bearings) 31 are mounted so as not to be vertically movable at two upper and lower portions of the movable blade support shaft 16, and the movable blade shaft is inserted and mounted on the movable blade support shaft 16 along the support shaft 16 by the bearing 31. The shaft 18 is rotatably supported. Thus, when the movable blade shaft 18 of the movable blade 14 is pivotally supported via the bearing 31 with the movable blade support shaft 16 fixed to the head side case 5, the vertically long movable blade 14 rotates in a light and stable state. Since it can be supported as much as possible, the driving load of the motor 8 can be reduced and the power consumption can be reduced. The rotation center axis of the movable blade 14 does not tilt during rotation. Moreover, since the movable blade 14 can be rotationally driven in a stable state, the beard cutting can be performed uniformly. The movable blade 14 does not necessarily need to be rotatably supported by the movable blade support shaft 16. That is, the movable blade support shaft 16 can be configured to be used as a support shaft for supporting only the fixed blade 15. In this case, the movable blade 14 is rotatably supported on the main body case 1 side.

  In FIG. 3, the head cap 17 includes a cap main body 32 made of a plastic molded product, and a shutter 33 made of a stainless steel plate disposed on the upper surface of the cap main body 32. A plurality of cleaning openings 34 for discharging cleaning water are formed at a plurality of locations on the upper wall of the cap body 32, and the cleaning opening 34 can be opened and closed by rotating the shutter 33 around the shutter shaft 35. A screw shaft 36 is integrally provided at the center of the inner surface of the cap body 32, and a cylindrical wall 37 that presses and holds the thrust ring 21 is formed around the screw shaft 36. In addition, a mounting seat 38 for holding the fixed blade 15 is formed in the inner surface of the cap body 32 so as to be recessed. The head cap 17 is integrated with the movable blade support shaft 16 by screwing the screw shaft 36 into the screw hole 39 provided in the movable blade support shaft 16, and the movable blade 14 and the fixed blade 15 assembled to the head side case 5. Remove and fix. At this time, the cylindrical wall 37 presses and holds the thrust ring 21 to restrict the movable blade 14 from moving upward. When the head cap 17 is removed from the movable blade support shaft 16, the fixed blade 15 and the movable blade 14 can be separated from the head side case 5 and the movable blade support shaft 16. Thus, the fixed blade 15 and the movable blade 14 can be attached to and detached from the head side case 5 and the movable blade support shaft 16 by being inserted and removed along the movable blade support shaft 16. The head cap 17 is not limited to the configuration in which the screw shaft 36 is screwed into the screw hole 39 provided in the movable blade support shaft 16, and may be a coupling method such as concave-convex fitting coupling or bayonet coupling. The screw shaft 36 may be provided separately from the head cap 17.

  The fixed blade 15 is formed in a long axis shape by an endless cylindrical blade body 42 that is long in the vertical direction, and reinforcing rings 43 that are fixed at both the upper and lower ends of the blade body 42. In the circumferential direction of the peripheral surface of the blade body 42, a plurality of cutting regions having different formation patterns of the cutting blade 44 and the blade hole 45 are provided. In this example, as shown in the developed view of FIG. 7, a short hair cutting region Z1 that mainly cuts short hairs, and a stump hair cutting region (short hair cutting region) that mainly cuts stump hairs shorter than short hairs. Three types of cutting regions, Z2 and a long hair cutting region Z3 that mainly cuts comb hair and long hair, were formed on the entire peripheral surface of the blade body 42 so that the respective regions are adjacent to each other. The blade hole 45 in the short hair cutting region Z1 is formed in a horizontally long hexagonal shape, the blade hole 45 in the stump hair cutting region Z2 is formed in a regular hexagonal shape, and each opening area of the blade hole 45 in the stump hair cutting region Z2 Is smaller than the individual opening area of the blade hole 45 in the short hair cutting region Z1. The stump hair cutting region Z2 can be interpreted as a “short hair cutting region” because it is a region where shorter hair can be cut. That is, in the present invention, the short hair cutting region Z1 and the stump hair cutting region Z2 are collectively referred to as a “short hair cutting region”. The blade hole 45 of the long hair cutting region Z3 is formed in a long groove shape (slit shape) that is long in the circumferential direction, and can effectively introduce comb hair and long hair. That is, each long groove-like blade hole 45 is provided such that the longitudinal direction of the blade hole 45 is along the circumferential direction of the cylindrical fixed blade 15. The definition of the long groove-shaped (slit-shaped) blade hole 45 in the long hair cutting region Z3 refers to a structure in which the dimension in the longitudinal direction of the blade hole is twice or more than the dimension in the short direction of the blade hole. Therefore, the shape of the blade hole 45 as in the short hair cutting region Z1 and the stump hair cutting region Z2 is less than twice the longitudinal dimension of the blade hole relative to the short dimension of the blade hole. It is not a long groove-shaped (slit-shaped) blade hole 45. With respect to the circumferential length of each of the cutting regions Z1 to Z3, (Z2> = Z1> Z3) can be satisfied. According to such a fixed blade 15, it is possible to increase the area area of the short hair cutting region Z <b> 1 and the stump hair cutting region Z <b> 2, which are frequently used, and to increase the opportunity for cutting the short hair and the stump hair. Can be done effectively. Moreover, it was made to satisfy (Z3> Z1> Z2) regarding the thickness of each cutting area | region Z1-Z3. The outer surfaces of the respective regions Z1 to Z3 can be coated with different colors, and in this case, it is possible to clarify which cutting region is in contact with the skin surface, so that user convenience can be improved. In the present embodiment, the blade hole 45 of the long hair cutting region Z3 is provided with its longitudinal direction along the circumferential direction. However, as a modification, the long groove-shaped blade hole 45 has a longitudinal direction of a fixed blade. It can be set as the structure provided along 15 major axis directions. As a result, if the user grasps the main body case 1 and reciprocates the case 1 in the axial direction, the fixed blade 15 also reciprocates in the same direction, and the long groove-shaped blade of the long hair cutting region Z3. Since the longitudinal direction of the hole 45 is the same direction, it is easy to introduce long hair, and the long hair can be suitably cut. If long hair can be cut to a certain extent, then the fixed blade 15 is rotated around the axis (circumferential direction) to bring the short hair cutting region Z1 into contact with the skin surface and then reciprocated in the axial direction as described above. The shaving work by the Z1 blade hole 45 can be performed. Further, if the fixed blade 15 is rotated around the axis (circumferential direction) to bring the stub hair cutting region Z2 into contact with the skin surface and reciprocated in the axial direction as described above, the blade hole 45 of the stub hair cutting region Z2 is used. The shaving work by can be performed. Also in this modified example, it is possible to perform a shaving operation in which long hairs and short hairs are distinguished in the circumferential surface of the cylindrical fixed blade 15.

  On the inner surface of the upper reinforcing ring 43 is formed a bell mouth-shaped guide portion 81 that is continuous with the inner surface of the blade body 42, and on the inner surface of the lower reinforcing ring 43 is a bell mouth that is continuous with the inner surface of the blade body 42. A guide portion 82 is formed. According to such a fixed blade 15, it is possible to improve the structural strength of the blade body 42 by restricting the blade body 42 from being elastically deformed radially inward by the reinforcing ring 43. Further, since the fixed blade 15 can be assembled to the movable blade 14 by using the forwardly tapered guide portion 82 formed on the lower side of the fixed blade 15 as a guide, the fixed blade 15 can be easily assembled to the movable blade 14. It can be done. Similarly, since the movable blade 14 can be assembled to the fixed blade 15 using the guide portion 81 formed on the upper side of the fixed blade 15 as a guide, the movable blade 14 can be easily assembled to the fixed blade 15. . Therefore, maintenance of the movable blade 14 and the fixed blade 15 can be facilitated.

  The blade body 42 is formed into an endless cylindrical shape that is long in the vertical direction through the electroforming process shown in FIGS. First, a glass cylindrical base material 46 is prepared, and a copper plating layer is formed on the peripheral surface thereof. Next, a photoresist layer is formed on the surface of the base material 46, exposed with a photomask in close contact with the upper surface, developed and dried, and the unexposed portion is dissolved and removed to provide a resist opening 47. A resist pattern 48 is formed on the surface of the base material 46. The shape of the resist pattern 48 is matched with the pattern of the cutting blade 44 and the blade hole 45 in each of the cutting regions Z1 to Z3. Next, the base material 46 is immersed in an electroforming solution, and an electrodeposited metal (copper) is grown on the plating layer exposed in the resist opening 47 to form a primary electroforming layer 49. At this time, the primary electroformed layer 49 is grown until it slightly exceeds the thickness of the resist pattern 48.

  Next, the base material 46 is immersed in another electroforming solution, and an electrodeposited metal (nickel-cobalt alloy) is grown on the outer surface of the primary electroformed layer 49 to form the secondary electroformed layer 50. Finally, after the base material 46 is crushed to separate the cylindrical blank from the base material 46, the photoresist layer and the primary electroformed layer 49 are dissolved and removed to obtain the front blank of the blade body 42. Then, the blade body 42 is completed by subjecting the front blank to a grinding process.

  The reinforcing ring 43 is made of a plastic molded product, and the reinforcing ring 43 can be integrated with the blade body 42 by inserting the blade body 42 at the time of molding. As described above, when the blade body 42 is insert-fixed at the time of forming the reinforcing ring 43, it is not necessary to separately provide a structure for integrating the blade body 42 and the reinforcing ring 43, so that the structure of the fixed blade 15 can be simplified. As shown in FIGS. 3 and 4, a stepped portion 53 that fits into the mounting seat 38 of the head cap 17 is formed on the upper peripheral edge of the upper reinforcing ring 43, and on the lower peripheral edge of the lower reinforcing ring 43. A stepped portion 55 that fits into the mounting seat 54 of the head side case 5 is formed. Further, the step portion 55 of the lower reinforcing ring 43 and the mounting seat 54 of the head side case 5 are formed with a projection 56 and a recess 57 that engage with each other to fix and hold the fixed blade 15 in a non-rotatable manner. Yes. As described above, when the reinforcing rings 43 are provided above and below the blade main body 42, the upper and lower reinforcing rings 43 can restrict the blade main body 42 applied to the skin surface from being deformed into an inner recess. Therefore, even when the blade body 42 is strongly pressed against the skin surface, the blade body 42 can be accurately cut by maintaining the outer shape of the blade body 42 in a cylindrical shape. In addition, the contact area between the skin surface and the blade body 42 can be prevented from becoming unnecessarily large, and the burden on the skin surface can be reduced. When fixing the fixed blade 15 to the head side case 5 (main body case 1), the fixed blade 15 is moved along the movable blade support shaft 16, and the step 55 of the reinforcing ring 43 below the fixed blade 15 is moved. It is fitted to the mounting seat 54 of the head side case 5. Then, the head cap 17 is screwed into a screw hole 39 provided in the movable blade support shaft 16. Thereby, the fixed blade 15 assembled to the head side case 5 can be secured. At this time, the mounting seat 38 of the head cap 17 allows the fixed blade 15 to rattle in the major axis direction of the movable blade support shaft 16 and the direction perpendicular to the major axis direction via the stepped portion 53 of the upper reinforcing ring 43. It can be prevented as much as possible. When the fixed blade 15 and the movable blade 14 are assembled, the movable blade shaft 18 and the blade body 42 are arranged concentrically around the movable blade support shaft 16. Further, the relationship between the main body case 1, the fixed blade 15 and the movable blade 14 is provided such that the axial direction of the main body case 1, the long axis direction of the cylindrical fixed blade 15 and the long axis direction of the movable blade shaft 18 coincide. ing.

  As shown in FIG. 2, the head side case 5 is connected to the base case 3 by a rotation shaft (bending shaft) 4 so as to be able to swing back and forth, and along the axis (long axis) P of the main body case 1. The second posture in which the axis of the head side case 5 coincides with the axis of the base case 3 (the state shown by the solid line in FIG. 2) and the axis of the head side case 5 is bent and displaced 90 degrees forward from the first posture. It can swing between a posture (a state indicated by an imaginary line in FIG. 2), that is, a state where the axis of the head side case 5 is orthogonal to the axis of the base case 3. The “matching first posture” is not limited to a straight line shape that exactly matches as long as the axis of the head side case 5 and the axis of the base case 3 are oriented in the same direction, and is in a parallel relationship. Even axes are included. Furthermore, in the first posture, if there is no problem with shaving by the pinching posture or the pen holding posture, it is not necessary to face in the exact same direction. For example, as long as the first posture is substantially coincident, the axis of the head side case 5 may be within the range of 0 ° ± 10 ° with respect to the axis of the base case 3. Even in the second posture, the bending displacement is not limited to 90 degrees forward, and if there is no problem in shaving with a grip, the bending displacement can be performed with a slight width. For example, if the configuration can swing between the first posture and a second posture that is bent and displaced approximately 90 degrees forward, the intersecting angle between both axes may be in the range of 90 degrees ± 10 degrees. The user can shave with the razor head 2 held in the first posture, and can also shave with the razor head 2 held in the second posture when necessary. At this time, in the first posture, shaving is performed in a pinching posture with the body case 1 at the tip of each finger or a pen holding posture, and in the second posture, a gripping posture (longitudinal) including each finger and palm is held. Shave in the holding position). In order to hold the head side case 5 in the first posture and the second posture, an elastic moderation structure is provided between the rotating shaft 4 and the bearing portion 12 that supports the coaxial shaft 4. In the first posture in which the axis of the head side case 5 is substantially coincident with the axis of the base case 3, the razor head 2, the fixed blade 15, and the movable blade 14 with respect to the axis (long axis) of the base case 3 (main body case 1). The axis (long axis) of the movable blade support shaft 16 also substantially coincides. In the second posture in which the axis of the head side case 5 is bent and displaced approximately 90 degrees forward from the first posture, the razor head 2, the fixed blade 15, and the axis (long axis) of the base case 3 (main body case 1), The axes (long axes) of the movable blade 14 and the movable blade support shaft 16 are substantially orthogonal. As shown in FIG. 2, the cutting blade 44 and the blade hole 45 in the fixed blade 15 are formed in the first posture in which the long axis direction of the cylindrical fixed blade 15 and the long axis direction of the main body case 1 coincide. The entire circumferential surface of the cutting area is exposed to free space. Even in the second posture in which the long axis direction of the cylindrical fixed blade 15 and the long axis direction of the main body case 1 are orthogonal, the entire circumference of the cutting region in which the cutting blade 44 and the blade hole 45 are formed in the fixed blade 15. The surface is exposed to free space. Note that the free space is a space that is not covered by the casing constituting the razor head 2 or the main body case 1 and is visible to the user.

  In FIG. 9, a connecting arm 58 projects from the lower surface of the head-side case 5, and a connecting groove 59 that accommodates the connecting arm 58 is formed in the base case 3 from the upper surface of the case to the front surface of the case. The rotating shaft 4 is formed integrally with the head side case 5. 9 and 10, the elastic moderation structure includes a plastic ring-shaped moderation spring 60 fixed to the rotation shaft 4, and two moderation protrusions (first moderation body) provided at positions surrounding the moderation spring 60. ) 61 and moderation recesses (second moderation bodies) 62 and 63 provided at three locations on the inner surface of the bearing portion 12. The moderation recesses 62 and 63 are formed between two arcuate protrusions formed adjacent to each other. Two moderation recesses 62 are provided at the front and rear facing positions of the inner surface of the bearing portion 12, and A third moderation recess 63 is formed at the center of the lower surface. A pair of connecting pieces 65 project from the inner surface of the moderation spring 60, and each of the connection pieces 65 is engaged and fixed in a connection groove 66 formed on the rotation shaft 4, so that the moderation spring 60 is connected to the rotation shaft 4. And integrated.

  In the state where the head side case 5 is displaced to the first posture, as shown in FIG. 9, the two moderation protrusions 61 are engaged with the two moderation recesses 62 provided on the front and rear surfaces of the bearing portion 12. . When the head side case 5 is displaced from the first posture to the second posture, only one moderation protrusion 61 is engaged with one moderation recess 63 provided at the center of the lower surface of the bearing portion 12. . As described above, when the elastic moderation structure is provided, the head side case 5 can be held in the first posture and the second posture, so that the beard cutting can be performed stably in each posture.

  Further, when the razor head 2 is pressed against the skin surface with the head side case 5 switched to the second posture, the razor head 2 receives the skin reaction force and rotates (oscillates) counterclockwise in FIG. )try to. However, the moderation spring 61 is elastically deformed as the moderation protrusion 61 tries to get over the arcuate projection on the right side of the moderation recess 63 in FIG. 10, and the razor head 2 rotates counterclockwise by the deformation stress. Therefore, as the skin reaction force decreases, the razor head 2 returns to the horizontal second posture. When the razor head 2 rotates counterclockwise against the deformation stress of the moderation spring 60, the lower surface of the connecting arm 58 is received by the front end of the connecting groove 59, so that the razor head 2 tilts further. The moderation projection 61 does not get over the top (dead point) of the arc projection of the moderation recess 63. Thus, in the second posture, the head side case 5 and the razor head 2 are elastically supported to be swingable with respect to the base case 3. That is, the rotation shaft 4 provided in one of the base case 3 and the head side case 5 is supported by the bearing portion 12 provided on the other side so as to be relatively swingable, and the rotation shaft 4 and the bearing portion 12 are supported. An elastic moderation structure that holds the head side case 5 in the first posture and the second posture is provided therebetween, and the elastic moderation structure is fixed to one of the rotating shaft 4 and the bearing portion 12. Shaped moderation spring 60, first moderation body 61 provided on moderation spring 60, provided on the other remaining of rotating shaft 4 and bearing portion 12, while first moderation body 61 is elastically deforming moderation spring 60, A second moderation body 62 that engages and disengages is provided. And in the 2nd attitude | position which the 1st moderation body 61 and the 2nd moderation body 62 engage, engagement of the 1st moderation body 61 and the 2nd moderation body 62 is cancelled | released on the opposite side to the side which goes to a 1st attitude | position. Between the dead points, the head side case 5 is elastically supported so as to be swingable by the spring force of the moderation spring 60. Further, the head side case 5 in the second posture is coupled to the base case 3 so as to be swingable between the second posture and a posture that exceeds the second posture in a direction away from the first posture. Thus, in the second posture, the head side case 5 is elastically supported so as to be swingable with respect to the base case 3, so that the razor head 2 can swing a predetermined angle when shaving in the first posture. Therefore, the fixed blade 15 can be prevented from being excessively pressed against the skin surface, and a large burden can be prevented from being applied to the skin surface. The elastic moderation structure is not limited to the structure of this embodiment, and the moderation spring 60 may be various as long as the moderation spring 60 also serves as a spring that elastically biases the head side case 5 with respect to the base case 3. Conceivable. For example, an elastic moderation structure comprising a pivot shaft 4 provided with a plurality of recesses around the periphery, and a plate spring having a projection that engages with the recesses fixed to the bearing portion 12 around the pivot shaft 4. Also good.

  Similarly, in a state where the head side case 5 is switched to the first posture, when the razor head 2 is pressed against the skin surface, the razor head 2 receives the skin reaction force and tries to rotate in the clockwise direction in FIG. To do. In this case, the moderation protrusion 61 tries to get over the lower circular protrusion of the right circular protrusion toward the FIG. 9 and the upper circular protrusion of the left circular protrusion toward the FIG. 9. Accordingly, the moderation spring 60 is elastically deformed, and the deformation stress restricts the razor head 2 from rotating in the clockwise direction. Therefore, as the skin reaction force becomes smaller, the razor head 2 has a vertical first posture. Return to. When the razor head 2 is rotated in the clockwise direction against the deformation stress of the moderation spring 60, the inclined lower surface of the connecting arm 58 is received by the upper end of the connecting groove 59, so that the razor head 2 is swung back further. It does not move, and the moderation protrusion 61 does not get over the top (dead point) of the arc protrusion of the moderation recess 63. As described above, since the razor head 2 is float-supported by the base case 3 so as to be able to swing back and forth, the fixed blade 15 is prevented from being excessively pressed against the skin surface, and a large load is applied to the skin surface. Can be prevented. In the first posture, the two moderation protrusions 61 are engaged with the moderation recess 63, and in the second posture, the one moderation projection 61 is engaged with the moderation recess 63, so that the moderation spring 60 is deformed in the first posture. The stress is sufficiently larger than the deformation stress of the moderation spring 60 in the second posture. That is, in this embodiment, the head side case 5 is elastically supported so as to be swingable with respect to the base case 3 even in the first posture, but the spring force of the moderation spring 60 against the skin reaction force is the second posture. The spring force of the first posture is larger than the spring force of. Therefore, since the razor head 2 is float-supported so as to be able to swing by a predetermined angle during shaving in the first posture, the fixed blade 15 can be prevented from being excessively pressed against the skin surface, and a large burden is placed on the skin surface. It can be prevented from hanging. In addition, since the spring force in the first posture is larger than the spring force in the second posture, it is easy to aim at the shaved part with a point in the state of the first posture.

  Further, since the number of the moderation protrusions 61 and the moderation recesses 62 engaged in the first posture is set to be larger than the number of the moderation protrusions 61 and the moderation recesses 63 engaged in the second posture, the head side case 5 is made to have a smaller force. Thus, the second posture can be returned to the first posture. Conversely, when the head side case 5 is switched from the first position to the second position, a greater force is required, so that the posture of the head side case 5 is the second position contrary to the user's intention during shaving. Switching to the posture can be prevented. Therefore, when shaving with the head-side case 5 in the first posture, the beard can be cut in a stable state. In this embodiment, the head-side case 5 is elastically supported so as to be swingable with respect to the base case 3 by using a moderation spring 60 having an elastic moderation structure. However, the present invention is not limited to this. The head side case 5 has a vertically divided case structure, and an elastic body (coil spring, tubular rubber, etc.) is interposed between the two cases, so that the upper head side case 5 and the razor head 2 are attached to the base case 3. On the other hand, the structure which elastically supports so that rocking is possible may be sufficient. In this case, the head-side case 5 and the base case 3 are not limited to a swinging structure in which the rotation shaft 4 of the head-side case 5 and the base case 3 are provided horizontally. A configuration in which the rotating shaft (bending axis) 4 that is provided obliquely and connects the opposed walls provided obliquely is disposed in a direction orthogonal to the opposed wall surface, that is, is disposed obliquely. It can be set as the rocking | fluctuation structure containing.

  As shown in FIG. 3, the power for transmitting the rotational power of the motor 8 to the movable blade 14 between the motor 8 provided in the head side case 5 and the movable blade shaft 18 provided in the razor head 2. A transmission structure is provided. The power transmission structure includes a flexible shaft 69 fixed to the output shaft of the reduction unit 9, a drive gear 70 fixed to the output end of the flexible shaft 69, and a driven gear 20 fixed to the movable blade shaft 18 and meshing with the drive gear 70. It consists of The gear shaft 71 of the drive gear 70 is rotatably supported by a bearing 72 fixed to the head side case 5, and the upper side of the portion supported by the bearing 72 protrudes above the head side case 5. The motor 8 and the speed reduction unit 9 are inclined with respect to the axis P of the main body case 1 in a state where the output shaft is positioned at the upper end of the inclination in order to avoid the head side case 5 from being enlarged and carried. Further, by arranging the motor 8 and the speed reduction unit 9 in an inclined manner, the bending angle of the flexible shaft 69 can be reduced, and the transmission loss of the rotational power of the motor 8 can be reduced. Incidentally, when the central axis of the motor 8 and the central axis of the drive gear 70 are parallel, the flexible shaft 69 is curved in a gentle S shape to form a convex curved portion and a concave curved portion, and between the curved portions. Inevitable formation of inflection points. However, if the motor 8 is disposed in an inclined manner, the bending angle of the flexible shaft 69 can be reduced to avoid the formation of the previous inflection point. Therefore, the transmission loss of rotational power between the motor 8 and the drive gear 70 can be avoided. Can be reduced.

  In FIG. 3, an illuminating body 75 for illuminating the skin surface at the time of shaving is disposed on the front upper end of the head side case 5. In this embodiment, the illuminating body 75 is composed of a bullet-type LED, and its optical axis is directed toward the outer peripheral surface of the razor head 2. Reference numeral 76 denotes a transparent diffusion block that diffuses part of the light emitted from the illuminating body 75. At the time of use, whisker cutting is performed while illuminating the skin surface and the whiskers with the illumination light emitted from the illuminating body 75, so that the whiskers are accurately cut while accurately grasping the state of the whiskers and the cutting state of the whiskers. be able to.

  When using an electric razor, for example, with the head side case 5 in the first posture, the short hair cutting region Z1 of the fixed blade 15 is applied to the skin surface to cut the beard. In addition, after rough shaving in the short hair cutting region Z1, the grip position of the main body case 1 is changed in the circumferential direction, and the stump hair shorter than the short hair is cut by applying the stump hair cutting region Z2 to the skin surface. be able to. Furthermore, by changing the grip position of the main body case 1 in the circumferential direction again and applying the long hair cutting region Z3 to the skin surface, it is possible to cut the comb hair and long hair. As described above, when the grip position of the main body case 1 is changed in the circumferential direction, the posture change can be performed accurately by changing the posture of the main body case 1 using the finger hooking projection 11.

According to the electric razor configured as described above, the shavings cut by the movable blade 14 can be held in the shavings accumulating portion 27, so that the shavings are blown off by the small blade 19 and scattered out of the fixed blade 15. Can be prevented. Therefore, the shave can always be performed in a hygienic state. Moreover, the cleaning interval of the fouling accumulated inside the fixed blade 15 can be expanded, and the labor required for cleaning can be reduced.
Since the mounting base end 19a of the movable blade shaft 18 is formed in a plane along the tangent line T of the peripheral surface of the movable blade shaft 18, when the moment accompanying the cutting resistance at the time of cutting the beard acts on the mounting base end 19a, the mounting base The end 19a is elastically deformed toward the peripheral surface side of the movable blade shaft 18 so that the previous moment can be absorbed and released. Therefore, it is possible to well prevent the previous moment from acting and the fixing structure of the mounting base end 19a, that is, the welded portion 22, from causing fatigue failure.

Since the fluff accumulation portion 27 is formed with a curved surface that is recessed from the virtual reference line Q toward the upper side in the rotational direction of the movable blade 14, the fluff accumulation portion 27 can be easily formed. Further, the volume of the fluff accumulation portion 27 can be increased so that a larger amount of fluff can be held inside the fluff accumulation portion 27, and the cut fluff is subjected to the centrifugal force of the small blade 19 to collect the fluff. Jumping out of the portion 27 can be well prevented. Further, the peripheral surface of the cutting blade 25 on the side of the cutting blade 25 can be urged closely against the inner surface of the fixed blade 15 by the deformation stress of the fluff accumulation portion 27.
Since the tip of the small blade 19 protrudes from the virtual reference line Q toward the lower side in the rotational direction of the movable blade 14 by the dimension a, the tip of the small blade 19 is rotated in the rotational direction of the movable blade 14 due to the cutting resistance during beard cutting. Even if it moves to the upper side, the cutting edge 25 at the tip of the small blade 19 can be reliably prevented from moving to the upper side in the rotational direction of the movable blade 14 beyond the virtual reference line Q. Therefore, it is possible to prevent the cutting blade 25 from striking the inner surface of the fixed blade 15 and damaging either the cutting blade 25 or the fixed blade 15. Further, the length of the small blade 19 that is in sliding contact with the fixed blade 15 can be increased, and the elasticity of the small blade 19 can be increased by that much.

  The dust collected in the hair collection part 27 can be washed away by washing with water. In that case, as shown in FIG. 4, the shutter 33 provided on the head cap 17 is rotated to open the cleaning opening 34. In this state, the electric razor is supported diagonally so that the head cap 17 is positioned at the lower end of the slant, and in a state where the movable blade 14 is driven to rotate, tap water is allowed to flow from the peripheral surface of the fixed blade 15 to thereby remove fluff. The water can be discharged from the cleaning opening 34 of the head cap 17 together with the cleaning water. At this time, if the fluff accumulation portion 27 is inclined from the lower end side toward the upper end side of the movable blade shaft 18, the hair flakes together with the washing water along the spiral fluff accumulation portion 27 at the time of washing with water. It is possible to make the hair flow and to wash away the debris toward the head cap 17 reliably and easily.

Since the fixed blade 15 in use is supported at both ends by a mounting seat 38 of the head cap 17 whose upper and lower ends are fixed to the movable blade spindle 16 and a mounting seat 54 of the head side case 5, a cylindrical fixed blade 15 can be firmly fixed and held by the head cap 17 and the body case 1. Therefore, the fixed blade 15 pressed against the skin surface is prevented from being deformed by receiving the reaction force of the skin or being displaced in the direction of the central axis, and the whiskers can be cut accurately. Further, the sliding contact resistance of the movable blade 14 and the fixed blade 15 in the axial direction can be made constant, and the whisker cutting action in the axial direction of the fixed blade 15 can be made uniform.
In addition, since three types of cutting regions, a short hair cutting region Z1, a stump hair cutting region Z2, and a long hair cutting region Z3, are formed on the peripheral surface of the fixed blade 15, there are differences in the length of the beard and the density of the beard. Accordingly, by properly using each of the cutting regions Z1 to Z3, the whisker cutting can be performed quickly and effectively. In this embodiment, the fixed blade 15 is directly attached to the main body case 1 (head side case 5), but is not limited to this, and is provided continuously at the end of the main body case 1 (head side case 5). A structure provided with an intermediate case (outer blade holder) to which the fixed blade 15 can be detachably mounted may be used. The structure in which both ends of the long axis direction of the fixed blade 15 are supported at both ends by the head cap 17 attached to the support shaft 16 and the main body case 1 (head side case 5) interposes such an intermediate case. The configuration is also included. Further, the head cap 17 is coupled by directly screwing the screw shaft 36 into the screw hole 39 provided in the movable blade support shaft 16, but is not limited thereto. It can be coupled via a shaft piece fixed to the movable blade support shaft 16. Accordingly, the configuration in which the head cap 17 that can be attached to and detached from the movable blade support shaft (support shaft) 16 includes the configuration in which such a shaft piece is interposed.

  When the head cap 17 is removed from the movable blade spindle 16, the movable blade 14 and the fixed blade 15 can be easily removed from the head side case 5, so that the movable blade 14 and the fixed blade 15 can be easily replaced. . Further, after removing the movable blade 14 from the head-side case 5, the chips attached to the inner surface of the hair collection unit 27, the inner surface of the movable blade shaft 18, the blade surface of the driven gear 20, etc. are cleaned or washed. The movable blade 14 can be maintained in a sanitary state. The fixed blade 15 removed from the head side case 5 can be similarly maintained in a hygienic state.

  When the cutting area including the cutting blade 44 and the blade hole 45 is provided on the entire peripheral surface of the fixed blade 15, the whisker can be cut on any peripheral surface of the entire peripheral surface of the fixed blade 15. Therefore, as compared with the embodiment in which the cutting region is partially provided on the peripheral surface of the fixed blade 15, the whisker can be cut by simply applying an arbitrary peripheral surface of the fixed blade 15 to the skin surface, and the fixed blade 15 that contacts the skin surface can be cut. Even when the circumferential surface position changes, whiskers can be continuously cut.

  In the first embodiment, the fluff accumulation portion 27 is formed with one curved surface, but the fluff accumulation portion 27 may be formed with a U-shaped, V-shaped, or W-shaped dent. It is sufficient that at least one is provided. Further, the cutting blade 25 does not have to be a continuous corrugated blade, and may have a saw blade shape or a blade shape in which a saw blade and a corrugated blade are mixed. The fixed blade 15 is not necessarily provided with a cutting region provided with the cutting blade 44 and the blade hole 45 on the entire peripheral surface. For example, the fixed blade 15 is limited to one-fourth to two-thirds of the peripheral surface of the fixed blade 15. A cutting region may be partially formed, for example, by providing a cutting region. In addition, a cutting region is provided on the entire peripheral surface of the fixed blade 15, and a part of the peripheral surface is covered with a cover wall provided integrally with the head cap 17 and the head side case 5, You may make it expose a cutting | disconnection area | region in a part of surface. With respect to the elastic moderation structure, the rotation shaft 4 can be provided on the base case 3 side, and the bearing portion 12 can be provided on the head side case 5. Furthermore, in Example 1, three types of cutting regions, short hair cutting region Z1, stump hair cutting region Z2, and long hair cutting region Z3, were formed, but this is not necessary and corresponds to the length and manner of hair growth. Thus, four or more types of cutting regions can be formed, or two types of cutting regions, a short hair cutting region Z1 and a long hair cutting region Z3, can be formed. The contents described above can be applied to the following embodiments. The fluff accumulation portion 27 in the small blade 19 can be formed of a perforated plate material having a mesh shape, a punching metal shape, or an expanded metal shape. As described above, when the fluff accumulation portion 27 is formed of a porous plate material, when the movable blade 14 is driven to rotate, air escapes from the hole opening of the porous plate material. It can prevent well.

Example 2 FIG. 11 shows Example 2 in which a part of the structure of the fixed blade 15 is changed. There, a reinforcing portion 80 that is bent in the radial direction is formed on the inner surface of the upper end of the blade body 42 in a flange shape so that the upper end of the blade body 42 and the reinforcing portion 80 are reinforced by the upper reinforcing ring 43. . According to such a fixed blade 15, the structural strength of the fixed blade 15 can be further enhanced by restricting the blade body 42 from being elastically deformed radially inward by the reinforcing portion 80 compared to the blade body 42 of the first embodiment. . If necessary, the reinforcing portion 80 can be provided also on the inner surface of the lower end of the blade body 42. According to the fixed blade 15 having improved structural strength as described above, when the structural strength of the fixed blade 15 is constant, the thickness of the fixed blade 15 can be made thinner, so that it can be deeply shaved. Since others are the same as the fixed blade 15 of Example 1, the same code | symbol is attached | subjected to the same member and the description is abbreviate | omitted. The same applies to the following embodiments.

(Example 3) Example 3 which changed a part of structure of the fixed blade 15 in FIG. 12 is shown. In this case, the upper and lower ends of the blade body 42 are provided with tapered guide portions 81 and 82, respectively, and the upper end and the guide portions 81 and 82 of the blade body 42 are reinforced by the upper and lower reinforcing rings 43. . According to such a fixed blade 15, as with the fixed blade 15 of the second embodiment, the guide body 81, 82 restricts the blade body 42 from being elastically deformed inward in the radial direction, and the structural strength of the blade body 42. Can be improved. Further, since the fixed blade 15 can be assembled to the movable blade 14 by using the forwardly tapered guide portion 82 formed on the lower side of the fixed blade 15 as a guide, the fixed blade 15 can be easily assembled to the movable blade 14. It can be done. Similarly, since the movable blade 14 can be assembled to the fixed blade 15 using the guide portion 81 formed on the upper side of the fixed blade 15 as a guide, the movable blade 14 can be easily assembled to the fixed blade 15. . Therefore, maintenance of the movable blade 14 and the fixed blade 15 can be facilitated.

Example 4 FIG. 13 shows Example 4 in which a part of the structure of the fixed blade 15 is changed. In this case, the blade body 42 is formed in a tapered crown shape so that the structural strength of the upper and lower middle portions of the blade body 42 can be enhanced. Also, when using it, you can press it while denting the skin surface with the curved surface of the upper and lower part of the blade body 42 formed in a tapered crown shape. In the same manner as described above, it is possible to effectively cut short hairs, comb hairs, and long hairs that are folded down along the skin surface, and perform beard cutting appropriately.

Example 5 FIG. 14 shows Example 5 in which a part of the structure of the fixed blade 15 is changed. In this case, the blade main body 42 is provided with a short hair cutting region Z1 for mainly cutting short hairs and a long hair cutting region Z3 for mainly cutting comb hairs and long hairs. Specifically, the long hair cutting region Z3 is formed in a circular shape at the upper end in the long axis direction of the fixed blade 15, and the short hair cutting region Z1 is circularly adjacent to the remaining peripheral surface of the fixed blade 15 in the long axis direction. Formed to be. With respect to the length in the major axis direction of each of the cutting regions Z1 and Z3, (Z1> Z3) can be satisfied. According to such a fixed blade 15, by simply shifting the position of the fixed blade 15 that contacts the skin surface along the axis P of the main body case 1, the cutting region that contacts the skin surface can be quickly changed between the short hair cutting region Z1 and the long hair cutting region Z3. Can be changed. Incidentally, in the electric razor of Example 1, it takes time and effort to change the gripping position of the main body case 1 in the circumferential direction and to change the cutting area that hits the skin surface. Further, since the long hair cutting region Z3 is provided at the upper end side (free end side) of the fixed blade 15, in other words, at one end away from the main body case 1, the long hair cutting region Z3 is applied to the portion where the long hair grows. The posture and angle of the long hair cutting region Z3 can be freely selected. Therefore, the long hair that has fallen into the skin surface can be properly guided into the blade hole 45 to cut the long hair more reliably. In addition, when the long hair cutting area | region Z3 is provided in the lower end side of the fixed blade 15, the short hair cutting area | region Z1 may hit a skin surface and may become obstructive. Furthermore, since the length in the axial direction of each cutting region Z1 and Z3 is (Z1> Z3), the area of the short hair cutting region Z1 that is frequently used can be increased to increase the chance of cutting short hairs. Therefore, the beard cutting can be effectively performed in a shorter time. In the first posture in which the axis of the head side case 5 is substantially coincident with the axis of the base case 3, the razor head 2, the fixed blade 15, and the movable blade 14 with respect to the axis (long axis) of the base case 3 (main body case 1). The axis (long axis) of the movable blade support shaft 16 also substantially coincides. In the second posture in which the axis of the head side case 5 is bent and displaced approximately 90 degrees forward from the first posture, the razor head 2, the fixed blade 15, and the axis (long axis) of the base case 3 (main body case 1), The axes (long axes) of the movable blade 14 and the movable blade support shaft 16 are substantially orthogonal. In the first posture in which the major axis direction of the cylindrical fixed blade 15 and the major axis direction of the main body case 1 substantially coincide with each other, the entire peripheral surface of the cutting region in which the cutting blade 44 and the blade hole 45 in the fixed blade 15 are formed. Is exposed to free space. Even in the second posture in which the long axis direction of the cylindrical fixed blade 15 and the long axis direction of the main body case 1 are substantially orthogonal, the entire cutting region of the fixed blade 15 in which the cutting blade 44 and the blade hole 45 are formed. The peripheral surface is exposed to free space. In addition, in a present Example, the stump hair cutting area | region Z2 can be provided in the site | part adjacent to the short hair cutting area | region Z1 on the opposite side to the long hair cutting area | region Z3.

  In the present embodiment, as shown in FIG. 14, the long groove-shaped (slit-shaped) blade hole 45 of the long hair cutting region Z3 is provided in the longitudinal direction along the circumferential direction. As shown in FIG. 22, the long groove-shaped (slit-shaped) blade hole 45 can be configured such that its longitudinal direction is provided along the long axis direction of the fixed blade 15. As a result, if the user grasps the main body case 1 and reciprocates the case 1 in the axial direction, the fixed blade 15 also reciprocates in the same direction, and the long groove-shaped blade of the long hair cutting region Z3. Since the longitudinal direction of the hole 45 is the same direction, it is easy to introduce long hair, and the long hair can be suitably cut. Moreover, since the reciprocating motion is performed, the cutting with the blade hole 45 in the short hair cutting region Z1 can be performed immediately after cutting the long hair, and the shaving operation can be performed efficiently and easily because it can be repeated. Further, as shown in FIG. 22, the long hair cutting region Z3 is provided between the short hair cutting region Z1 and the short hair cutting region Z1. Accordingly, if the main body case 1 is reciprocated in the axial direction and the fixed blade 15 is reciprocated in the same direction as described above, the short hair cutting region Z1 is provided on both sides with respect to the long hair cutting region Z3. Can be shaved manually. In addition, also in the positional relationship of the long hair cutting area | region Z3 and the short hair cutting area | region Z1 in a present Example, the long hair cutting area | region Z3 is a structure provided in the end of the side away from the main body case 1. FIG. In short, as long as the long hair cutting region Z3 is provided on the upper end side of the center line in the major axis direction of the blade body 42 of the fixed blade 15, it can be configured to be provided at one end away from the body case 1. .

Example 6 FIGS. 15 and 16 show Example 6 in which the power transmission structure for transmitting the rotational power of the motor 8 to the movable blade 14 is changed. In this case, the motor 8 is disposed inside the base case 3, and the rotational power of the motor 8 is transmitted to the head side case 5 via a face gear 84 disposed on the central axis of the rotating shaft 4. Specifically, as shown in FIG. 16, the drive gear 85 fixed to the output shaft of the reduction unit 9 is engaged with the face gear 84, and the passive gear 86 provided on the input end side of the flexible shaft 69 is engaged with the face gear 84. The movable blade 14 can be driven to rotate. The rotational power of the passive gear 86 is transmitted to the driven gear 20 of the movable blade shaft 18 via the flexible shaft 69 and the drive gear 70. In the electric razor according to the sixth embodiment, since the motor 8 is disposed inside the base case 3 that also serves as a grip, the head side case 5 is not lifted in a state of being bent in the second posture. Further, when the head side case 5 swings and displaces between the first posture and the second posture, the motor lead that supplies the drive current to the motor 8 is not bent, so that the motor lead is prevented from being disconnected. it can. Also in the electric razor according to the sixth embodiment, similarly to the electric razor according to the first embodiment, the head-side case 5 is held between the rotating shaft 4 and the bearing portion 12 in the first posture and the second posture. A moderation structure is provided, and the razor head 2 is elastically supported by the moderation spring 60 having an elastic moderation structure so that the razor head 2 can swing at a predetermined angle with respect to the base case 3 in both the first position and the second position. Yes. A face gear 84 and a ring-shaped moderation spring 60 are provided concentrically around the rotation shaft 4.

  In the sixth embodiment, the motor 8 is disposed inside the base case 3, but it is not necessary. The motor 8 and the power transmission structure that transmits the rotational power of the motor 8 to the movable blade 14 are the head of the main body case 1. It can be provided in the side case 5. In that case, for example, the motor 8 and the movable blade shaft 18 are directly connected, or the driven gear 20 of the movable blade shaft 18 is driven by the drive gear 70 fixed to the output shaft of the motor 8 or the reduction unit 9 to move the movable blade 14. Since the power transmission structure for the movable blade 14 can be remarkably simplified, the cost can be reduced.

Example 7 FIGS. 17 to 19 show an electric shaver according to Example 7. FIG. In this embodiment, the point that the structure of the movable blade 14 is changed and the point that the flock accumulation portion 27 is formed on the sleeve 89 assembled to the movable blade 14 are greatly different from the electric razor of the first embodiment. The movable blade 14 includes a movable blade shaft 18 that supports three small blades 19, a driven gear 20 that is fixed to the lower end of the movable blade shaft 18, and a thrust ring 21 that is fixed to the upper end of the movable blade shaft 18. ing. The movable blade shaft 18 is formed of a plastic molded product integrally provided with a cylindrical shaft main body 90 and small blade mounting arms 91 protruding from three locations around the shaft main body 90. Small blades 19 are caulked and fixed together with U-shaped biasing springs 93 on small blade shafts 92 provided at four upper and lower positions. The small blade mounting arm 91 is inclined with respect to the rotation center axis of the movable blade 14, and the upper end thereof is positioned on the upper side in the rotational direction from the lower end. The small blade 19 is composed of a flat blade body formed in a vertically long parallelogram shape, and a linear cutting blade 25 is formed on the lower side in the rotational direction.

  As shown in FIG. 19, the sleeve 89 has a donut-shaped base end wall 94, three fluff pockets 95 provided on the lower surface of the base end wall 94, and a bottom wall 96 continuous with the lower end of the fluff pocket 95. It consists of a plastic molded product provided integrally. The fluff pocket 95 is integrally provided with a partial arc-shaped peripheral wall 95a and a radial wall 95b continuous on the lower side in the rotational direction of the peripheral wall 95a, and the space between the peripheral wall 95a and the radial wall 95b is opposite. It is the fluff accumulation part 27 having a V-shaped cross section. The fluff pocket 95 of the sleeve 89 is inserted between the blade mounting arms 91 adjacent from the upper side of the movable blade 14, and the proximal end wall 94 is received by the upper ends of the blade mounting arm 91 and the blade 19, and the radial wall The sleeve 89 can be integrated with the movable blade 14 by receiving 95b with the small blade mounting arm 91. The cutting edge 25 of the small blade 19 in this state is opposed to the free end of the peripheral wall 95a via a small gap E, and the fluff cut by the small blade 19 passes through the gap E from the previous gap E. Get inside.

  As described above, according to the movable blade 14 constituted by the movable blade shaft 18 and the flat plate-shaped small blade 19, only the tip of the cutting blade 25 slides against the inner surface of the fixed blade 15 to perform the beard cutting. The cutting load acting on the motor 8 can be reduced by reducing the frictional resistance of the small blade 19 compared to the movable blade 1. Since the cutting blade 25 of the small blade 19 is inclined obliquely, the beard can be cut, and therefore the beard can be cut sharply and sharply. Further, since the fluff accumulation portion 27 is formed in the sleeve 89 provided separately, the head cap 17 is separated from the movable blade spindle 16 and further removed from the movable blade 214 to be held in the fluff accumulation portion 27. It is possible to easily wash away most of the hair chips. Furthermore, since the gap E between the cutting edge 25 and the free end of the peripheral wall 95a is small, it is possible to well prevent the fluff held by the fluff accumulation portion 27 from jumping out of the gap E.

  In each of the above-described embodiments, the case where the movable blade 14 is a rotary blade has been described. However, the electric razor of the present invention can be implemented in a form in which the movable blade 101 is driven to reciprocate to perform whisker cutting. Specifically, as shown in FIGS. 20 and 21, the movable blade 101 includes a vertically movable hollow cylindrical movable blade shaft 102 and six small blades 103 fixed at regular intervals along the movable blade shaft 102. Configure. The movable blade shaft 102 is inserted into the movable blade support shaft 16 and supported while being guided by the support shaft 16 so as to be capable of reciprocating in the long axis direction. The movable blade support shaft 16 is made of a stainless steel round shaft, and a flange wall 16 a provided at the lower end thereof is insert-fixed to the upper wall of the head side case 5. As described above, when the movable blade shaft 102 of the movable blade 101 is supported while being guided by the movable blade support shaft 16 fixed to the head side case 5, the long-axis movable blade 14 is reciprocated in a light and stable state. Can be made. The movable blade shaft 102 is guided to be vertically slidable by a boss 104 provided at the center of the inner surface of the head cap 17 and a boss 105 provided on the upper wall of the head side case 5. The small blade 103 is formed in a disc shape, and cutting edges 106 are formed on the upper edge and the lower edge of the peripheral surface, and the peripheral surface other than the cutting edge 106 is recessed radially inwardly, 15 is configured so as not to slide on. The fixed blade 15 includes a blade body 42 and a reinforcing ring 43 fixed to the upper end and the lower end of the blade body 42, and a screw portion 111 provided on the lower end reinforcing ring 43 is attached to a mounting seat for the head side case 5. The head side case 5 is integrated by screwing into a screw hole 112 provided on the inner peripheral surface of 54. Further, the fixed blade 15 can be prevented from coming off by screwing a screw hole 121 formed in the head cap 17 into a screw shaft 120 formed at the tip of the movable blade support shaft 16. At this time, since the tapered support surface 122 formed around the lower surface of the head cap 17 is in contact with the guide portion 81 in a pressed state, the fixed blade 15 is supported at both ends. The beard cutting can be performed accurately by preventing the fixed blade 15 pressed against the surface from being deformed due to the skin reaction force or being displaced in the direction of the central axis. Since a group of cutting blades 44 and blade holes 45 are formed on the entire peripheral surface of the fixed blade 15, the disk-shaped small blade 103 and the cutting blade 44 cooperate to form a whisker on the entire peripheral surface of the fixed blade 15. Can be cut.

  Similar to the electric razor of the sixth embodiment, the motor 8 is disposed inside the base case 3, and the head side case is disposed via a face gear 84 in which the rotational power of the motor 8 is disposed on the central axis of the rotating shaft 4. Go to 5. Specifically, as shown in FIG. 21, the drive gear 85 fixed to the output shaft of the speed reduction unit 9 is engaged with the face gear 84, and the rotational operation of the face gear 84 is converted into a reciprocating operation by the crankshaft 107. Can be driven back and forth. An upper end of the crankshaft 107 is connected to a lower end of a transmission shaft 123 detachably connected to the movable blade shaft 102 by a pin 108 so that the lower end of the crankshaft 107 is connected to a gear end surface of the face gear 84. An eccentric pin 109 is connected so as to be capable of relative tilting. In order to allow the head-side case 5 to tilt forward and backward, a relief groove 110 that tilts relative to the gear shaft of the drive gear 85 is formed on the connecting arm 58 side. When the head cap 17 is removed from the movable blade support shaft 16, the fixed blade 15 and the movable blade 101 can be separated from the head side case 5 and the movable blade support shaft 16. The fixed blade 15 and the movable blade 101 can be attached to and detached from the head side case 5 and the movable blade support shaft 16 by being inserted and removed along the movable blade support shaft 16. Also in the present embodiment, an elastic moderation structure that holds the head side case 5 in the first posture and the second posture is provided between the rotating shaft 4 and the bearing portion 12. The razor head 2 is elastically supported by the spring 60 so as to be swingable by a predetermined angle with respect to the base case 3 in both the first posture and the second posture. A face gear 84 and a ring-shaped moderation spring 60 are provided concentrically around the rotation shaft 4. Moreover, any form of each said Example is applicable also about the arrangement pattern of the short hair cutting area | region Z1, the stump hair cutting area | region Z2, and the long hair cutting area | region Z3 in the fixed blade 15. FIG. 20 and 21, the same members as those in the above-described embodiments are denoted by the same reference numerals, and the description thereof is omitted. The electric razor configured as described above can perform beard cutting in the same manner as the electric razor described in each of the above-described embodiments. By increasing the chance of contact between the small blade 103 and the beard, the beard can be cut effectively.

The electric shaver of the said Example can be implemented with the following aspects.
A main body case 1 and a razor head 2 supported by the main body case 1;
The razor head 2 is provided with a movable blade 14, 101 and a fixed blade 15 surrounding the movable blade 14, 101,
One end of the main body case 1 is provided with a support shaft 16 projecting in the long axis direction of the case 1.
A head cap 17 detachably attached to the support shaft 16 is provided.
An electric razor characterized in that both ends in the major axis direction of the fixed blade 15 are supported at both ends by a head cap 17 attached to the support shaft 16 and the main body case 1.
When the both ends of the long axis direction of the fixed blade 15 are both supported by the head cap 17 attached to the support shaft 16 and the main body case 1 as in the above configuration, the fixed blade 15 is firmly fixed by the head cap 17 and the main body case 1. Can be held fixed. Therefore, the fixed blade 15 pressed against the skin surface is deformed by receiving the skin reaction force, or is prevented from moving in a direction perpendicular to the major axis direction, and the beard cutting can be performed accurately.

The above electric razor,
An electric razor characterized in that both ends of the fixed blade 15 are reinforced by reinforcing rings 43.
When both ends of the fixed blade 15 are reinforced by the reinforcing ring 43 as in the above-described configuration, the reinforcing ring 43 can restrict the fixed blade 15 applied to the skin surface from being deformed into an inner recess. Accordingly, even when the fixed blade 15 is strongly pressed against the skin surface, the shape of the fixed blade 15 can be maintained and the whiskers can be cut accurately.

The above electric razor,
The movable blades 14 and 101 include movable blade shafts 18 and 102 and small blades 19 and 103 provided around the movable blade shafts 18 and 102.
An electric shaver characterized in that the movable blade shafts 18 and 102 of the movable blades 14 and 101 are formed in a hollow cylindrical shape and are supported by a support shaft 16 so as to be movable. The term “movable” means that the movable blades 14 and 101 can be rotated or reciprocated.
If the movable blade shafts 18 and 102 formed in a hollow cylindrical shape are supported by the support shaft 16 so as to be movable as in the above configuration, the movable blades 14 and 101 can be driven in a stable state.

The above electric razor,
The movable blades 14 and 101 attached to the support shaft 16 and the fixed blade 15 attached to the main body case 1 are fixed and secured by a head cap 17 attached to the support shaft 16.
An electric shaver configured so that the fixed blade 15 and the movable blades 14 and 101 can be separated from the main body case 1 and the support shaft 16 in a state in which the head cap 17 is detached from the support shaft 16.
If the movable blades 14 and 101 and the fixed blade 15 are secured by the head cap 17 attached to the support shaft 16 as in the above configuration, the fixed blade 15 can be removed simply by removing the head cap 17 from the support shaft 16. Can be separated from the main body case 1, and the movable blades 14 and 101 can be separated from the support shaft 16. Accordingly, assembly and maintenance of the movable blades 14 and 101 and the fixed blade 15 can be facilitated.

The above electric razor,
A main body case 1 and a razor head 2 supported by the main body case 1;
The razor head 2 is provided with a movable blade 14 and a fixed blade 15 surrounding the movable blade 14,
The movable blade 14 includes a movable blade shaft 18 that is rotationally driven, and a small blade 19 that is provided around the movable blade shaft 18.
One end of the main body case 1 is provided with a support shaft 16 projecting in the long axis direction of the case 1.
An electric shaver characterized in that the movable blade shaft 18 of the movable blade 14 is formed in a hollow cylindrical shape and is rotatably supported by a support shaft 16.
With the above configuration, when the movable blade shaft 18 formed in a hollow cylindrical shape is rotatably supported by the support shaft 16, the movable blade 14 can be rotationally driven in a stable state.

Moreover, the electric shaver of the said Example can be implemented with the following aspects.
A main body case 1 and a razor head 2 supported by the main body case 1;
The razor head 2 is provided with movable blades 14 and 101 and a cylindrical fixed blade 15 surrounding the movable blades 14 and 101,
A cutting region having a cutting blade 44 and a blade hole 45 is provided on the entire peripheral surface of the fixed blade 15,
The movable blades 14 and 101 include small blades 19 and 103 that cut the beard in cooperation with the cutting blades 44 formed on the entire peripheral surface of the fixed blade 15.
The fixed blade 15 is provided to protrude from one end of the long-axis main body case 1 that also serves as a grip,
The long axis direction of the cylindrical fixed blade 15 and the long axis direction of the main body case 1 are provided so as to substantially coincide with each other, and the entire circumferential surface of the cutting region of the fixed blade 15 is exposed to free space,
An electric razor characterized in that a plurality of cutting regions having different formation patterns of the blade holes 45 are provided adjacent to each other in the circumferential direction of the peripheral surface of the fixed blade 15.
As in the above-described configuration, when a plurality of cutting regions having different formation patterns of the blade holes 45 are provided adjacent to each other in the circumferential direction of the peripheral surface of the fixed blade 15, the difference in the length of the whiskers and the density of the whiskers, etc. Accordingly, by properly using each cutting area, whiskers can be cut quickly and effectively.

The above electric razor,
An electric shaver characterized in that the cutting region includes at least short hair cutting regions Z1 and Z2 that mainly cut short hairs and long hair cutting regions Z3 that mainly cut long hairs.
According to the said structure, after cutting long hair in the long hair cutting area | region Z3, finishing shaving can be performed in the short hair cutting area | region Z1 * Z2. In addition, since the short hair cutting regions Z1 and Z2 and the long hair cutting region Z3 are provided adjacent to each other in the circumferential direction, by rotating the fixed blade 15 around the axis while being in contact with the skin surface, Can be cut continuously.

The above electric razor,
The long hair cutting region Z3 includes a slit-like blade hole 45,
An electric razor characterized in that the longitudinal direction of the blade hole 45 of the long hair cutting region Z3 is provided along the circumferential direction of the fixed blade 15.
According to the above configuration, since the longitudinal direction of the slit-like blade hole 45 in the long hair cutting region Z3 is provided along the circumferential direction of the fixed blade 15, the fixed blade 15 is rotated around the axis while being in contact with the skin surface. Sometimes, it is easy to introduce long hair, and the long hair can be suitably cut. The fact that the longitudinal direction of the blade hole 45 is provided along the circumferential direction of the fixed blade 15 is not limited to the case where the longitudinal direction of the blade hole exactly coincides with the circumferential direction, but is slightly inclined at an angle of ± 10 degrees. You may do it.

Moreover, the electric shaver of the said Example can be implemented with the following aspects.
A main body case 1 and a razor head 2 supported by the main body case 1;
The razor head 2 is provided with movable blades 14 and 101 and a cylindrical fixed blade 15 surrounding the movable blades 14 and 101,
A cutting region having a cutting blade 44 and a blade hole 45 is provided on the entire peripheral surface of the fixed blade 15,
The movable blades 14 and 101 include small blades 19 and 103 that cut the beard in cooperation with the cutting blades 44 formed on the entire peripheral surface of the fixed blade 15.
The fixed blade 15 is provided to protrude from one end of the long-axis main body case 1 that also serves as a grip,
The long axis direction of the cylindrical fixed blade 15 and the long axis direction of the main body case 1 are provided so as to substantially coincide with each other, and the entire circumferential surface of the cutting region of the fixed blade 15 is exposed to free space,
An electric razor characterized in that a plurality of cutting regions having different formation patterns of blade holes 45 are provided adjacent to each other in the major axis direction of the fixed blade 15.
If a plurality of cutting regions having different formation patterns of the blade holes 45 are provided adjacent to each other in the major axis direction of the fixed blade 15 as in the above configuration, depending on the length of the whiskers and the density of the whiskers, etc. Thus, by properly using each cutting region, it is possible to perform whisker cutting quickly and effectively.

The above electric razor,
An electric shaver characterized in that the cutting region includes at least short hair cutting regions Z1 and Z2 that mainly cut short hairs and long hair cutting regions Z3 that mainly cut long hairs.
According to the said structure, after cutting long hair in the long hair cutting area | region Z3, finishing shaving can be performed in the short hair cutting area | region Z1 * Z2. Further, since the short hair cutting regions Z1 and Z2 and the long hair cutting region Z3 are provided adjacent to the long axis direction of the fixed blade 15, the long blade direction of the fixed blade 15 remains in contact with the skin surface. By reciprocating, long hair and short hair can be cut continuously.

The above electric razor,
The long hair cutting region Z3 includes a slit-like blade hole 45,
An electric razor characterized in that the longitudinal direction of the blade hole 45 of the long hair cutting region Z3 is provided along the long axis direction of the fixed blade 15.
According to the above configuration, since the longitudinal direction of the slit-like blade hole 45 in the long hair cutting region Z3 is provided along the long axis direction of the fixed blade 15, the fixed blade 15 remains in contact with the skin surface. When reciprocating in the long axis direction, it is easy to introduce long hairs, and the long hairs can be suitably cut. The fact that the longitudinal direction of the blade hole 45 is provided along the long axis direction of the fixed blade 15 is not limited to the case where the longitudinal direction of the blade hole exactly coincides with the long axis direction, and is slightly at an angle of ± 10 degrees. It may be inclined.

The above electric razor,
An electric razor characterized in that the long hair cutting region Z3 is provided at one end on the side away from the main body case 1.
According to the said structure, the attitude | position and angle of the long hair cutting area | region Z3 when applying the long hair cutting area | region Z3 to the part which the long hair grows can be selected freely. Therefore, the long hair that has fallen into the skin surface can be appropriately guided into the blade hole 45 to cut the long hair more reliably. In addition, when the long hair cutting area | region Z3 is provided in the side close | similar to the main body case 1, the short hair cutting area | region Z1 may hit a skin surface and may become obstructive. Further, if the diameter of the fixed blade 15 is reduced, it can also be applied to shaving the nose. In this case, the nose hair can be easily cut by inserting the end of the fixed blade 15 into the nostril.

The above electric razor,
An electric razor characterized in that the long hair cutting region Z3 is provided between the short hair cutting regions Z1 and Z2 and the short hair cutting regions Z1 and Z2.
With the above configuration, if the main body case 1 is reciprocated in the axial direction and the fixed blade 15 is reciprocated in the same direction, there is a short hair cutting region Z1 on both sides based on the long hair cutting region Z3. Can be shaved.

The above electric razor,
The long hair cutting region Z3 is provided at one end on the side away from the main body case 1,
The long hair cutting region Z3 includes a slit-like blade hole 45,
An electric razor characterized in that the longitudinal direction of the blade hole 45 of the long hair cutting region Z3 is provided along the circumferential direction of the fixed blade 15.
With the above configuration, if the main body case 1 is held in the hand and the portion is swung around the shaft, the long hair cutting region Z3 is greatly oscillated by a small amount of hand movement, so that the long hair can be cut effectively. At this time, since the longitudinal direction of the blade hole 45 is provided along the circumferential direction of the fixed blade 15, the long hair can be appropriately cut into the blade hole 45 and the long hair can be cut more reliably. Further, if the diameter of the fixed blade 15 is reduced, it can also be applied to shaving the nose. In this case, the nose hair can be easily cut by inserting the end of the fixed blade 15 into the hole of the nose and rotating it around the long axis. The fact that the longitudinal direction of the blade hole 45 is provided along the circumferential direction of the fixed blade 15 is not limited to the case where the longitudinal direction of the blade hole exactly coincides with the circumferential direction, but is slightly inclined at an angle of ± 10 degrees. You may do it.

Moreover, the electric shaver of the said Example can be implemented with the following aspects.
A main body case 1 and a razor head 2 supported by the main body case 1;
The razor head 2 is provided with a movable blade 14, 101 and a fixed blade 15 surrounding the movable blade 14, 101,
The main body case 1 is composed of a base case 3 and a head side case 5 connected to the base case 3 so as to be swingable by a bending shaft 4.
The razor head 2 is provided so as to protrude from one end of the head side case 5,
The head side case 5 is configured to be swingable between a first posture in which the axis of the head side case 5 substantially coincides with the axis of the base case 3 and a second posture in which the head side case 5 is bent at an angle of about 90 degrees from the first posture. Has been
An electric shaver, wherein the head side case 5 is elastically supported so as to be swingable with respect to the base case 3 in the second posture.
According to the above configuration, the razor head 2 and the main body case 1 can be changed in posture so that the razor head 2 and the main body case 1 are substantially straight, or the razor head 2 and the main body case 1 intersect at an angle of approximately 90 degrees, so that the user can use either of them. The easy-to-use form can be selected and the usability can be improved. Further, when the razor head 2 and the main body case 1 are in the second posture in which the razor head 2 and the main body case 1 intersect at an angle of approximately 90 degrees, the razor head 2 is elastically supported so as to be able to swing, so that the fixed blade 15 is excessive on the skin surface. It is possible to prevent the skin surface from being overwhelmed by being pressed against the skin.

The above electric razor,
The bending shaft 4 provided on either the base case 3 or the head side case 5 is supported by a bearing portion 12 provided on the other side so as to be capable of relative swinging.
An elastic moderation structure that holds the head-side case 5 in the first posture and the second posture is provided between the bending shaft 4 and the bearing portion 12.
The elastic moderation structure includes a moderation spring 60 fixed to one of the bending shaft 4 and the bearing portion 12;
An electric razor characterized in that the moderation spring 60 also serves as a spring for elastically biasing the head-side case 5 so as to swing.
According to the above configuration, it is not necessary to separately provide a spring for elastically biasing the head side case 5, that is, the razor head 2, so that the number of parts can be reduced.

The above electric razor,
The bending shaft 4 provided on either the base case 3 or the head side case 5 is supported by a bearing portion 12 provided on the other side so as to be capable of relative swinging.
An elastic moderation structure that holds the head-side case 5 in the first posture and the second posture is provided between the bending shaft 4 and the bearing portion 12.
The elastic moderation structure has a ring-shaped moderation spring 60 fixed to one of the bending shaft 4 and the bearing portion 12, the first moderation body 61 provided on the moderation spring 60, the bending shaft 4 and the bearing portion 12 remaining. A second moderation body 62 that is provided on the other side and engages / disengages from the first moderation body 61 while elastically deforming the moderation spring 60;
In the second posture in which the first moderating body 61 and the second moderating body 62 are engaged, the dead point at which the engagement of the first moderating body 61 and the second moderating body 62 is released to the side opposite to the side toward the first posture. The electric shaver is characterized in that the head side case 5 is elastically supported so as to be swingable by the spring force of the moderation spring 60.
According to the above configuration, it is not necessary to separately provide a spring for elastically biasing the head side case 5, that is, the razor head 2, so that the number of parts can be reduced.

The above electric razor,
The head side case 5 in the second posture is connected to the base case 3 so as to be swingable between the second posture and a posture exceeding 90 degrees from the first posture and exceeding the second posture. Electric razor to do.
According to the above configuration, since the head side case 5, that is, the razor head 2, and the base case 3, that is, the main body case 1 are in an acute angle when swinging from the second posture, the fixed blade 15 is placed on the skin surface. When pressed with a strong force, the fixed blade 15 can easily escape and damage to the swinging structure can be prevented as much as possible.

The above electric razor,
Between the motor 8 provided inside the base case 3 and the movable blades 14 and 101, a power transmission structure for transmitting the rotational power of the motor 8 to the movable blade 14 is provided.
The power transmission structure includes a drive gear 85 that transmits the rotational power of the motor 8 and a face gear 84 that rotates about the bending shaft 4 for transmitting the power of the drive gear 85 to the movable blades 14 and 101. And electric razor.
According to the above configuration, since the motor 8 is disposed inside the base case 3 that also serves as a grip, the head side case 5 is not lifted in a state of being bent in the second posture. Further, when the head side case 5 swings and displaces between the first posture and the second posture, the motor lead that supplies the drive current to the motor 8 is not bent, so that the motor lead is prevented from being disconnected. it can.

  The cylindrical shape of the cylindrical fixed blade 15 in the above embodiment includes a truncated cone shape having gradually different diameters in the major axis direction. Each of the movable blades 14 and 101 of the above embodiment includes plate-shaped small blades 19 and 103. For example, a metal plate such as stainless steel is etched to form a large number of openings (the periphery of the opening is a cutting blade). The drum-shaped movable blades 14 and 101 can be formed into a cylindrical shape by rolling this metal plate.

DESCRIPTION OF SYMBOLS 1 Main body case 2 Razor head 3 Base case 4 Rotating axis (bending axis)
DESCRIPTION OF SYMBOLS 5 Head side case 8 Motor 11 Finger hooking protrusion 12 Bearing part 14 Movable blade 15 Fixed blade 16 Movable blade spindle (support axis)
17 Head Cap 18 Movable Blade Shaft 19 Small Blade 19a Mounting Base End 20 Drive Gear 25 Cutting Blade 26 Opening 27 Flue Accumulation Portion 28 Cutting Blade 31 Bearing 42 Blade Body 43 Reinforcement Ring 44 Cutting Blade 45 Blade Hole 60 Moderation Spring 61 First Moderation body 62 Second moderation body 69 Flexible shaft 70 Drive gear 75 Illumination body 80 Reinforcing wall 81 Guide portion 82 Guide portion 85 Drive gear 86 Passive gear 84 Face gear P Axis line Q Virtual reference line Z1 Short hair cutting region Z2 Stump hair cutting region Z3 Long hair cutting area θ1 Cutting edge angle θ2 Cutting edge angle

Claims (3)

A main body case (1) and a razor head (2) supported by the main body case (1);
The razor head (2) is provided with a movable blade (14, 101) and a cylindrical fixed blade (15) surrounding the movable blade (14, 101).
A cutting region having a cutting blade (44) and a blade hole (45) is provided on the entire peripheral surface of the fixed blade (15),
The movable blade (14, 101) includes a small blade (19, 103) that cuts the beard in cooperation with the cutting blade (44) formed on the entire peripheral surface of the fixed blade (15),
A fixed blade (15) is provided protruding from one end of a long-axis main body case (1) that also serves as a grip,
The long axis direction of the cylindrical fixed blade (15) and the long axis direction of the main body case (1) are provided so as to substantially coincide with each other.
An electric razor characterized in that a plurality of cutting regions having different formation patterns of blade holes (45) are provided adjacent to each other in the circumferential direction of the peripheral surface of the fixed blade (15).   The cutting region comprises at least a short hair cutting region (Z1 · Z2) for mainly cutting short hairs and a long hair cutting region (Z3) for mainly cutting long hairs. The described electric razor. The long hair cutting region (Z3) includes a slit-like blade hole (45),
The electric shaver according to claim 2, characterized in that the longitudinal direction of the blade hole (45) of the long hair cutting region (Z3) is provided along the circumferential direction of the fixed blade (15).

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