JP2018033882A - Electric razor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric shaver capable of eliminating scattering of hair dust cut by a movable blade to the outside of a fixed blade, thus enabling to always perform shaving in a sanitary state, in an electric shaver.SOLUTION: There is provided an electric shaver which comprises a body case 1 and a razor head 2 supported by the body case 1. A movable blade 14 and a fixed blade 15 surrounding the periphery of the movable blade 14 are provided on the razor head 2. The movable blade 14 comprises a rotatably driven movable blade shaft 18 and a small blade 19 mounted around the movable blade shaft 18. A hair dust accumulation part 27 is recess-formed between a tip end of the small blade 19 in sliding contact with the fixed blade 15 and a mounting base end 19a of the small blade 19 fixed to the movable blade shaft 18 to store the hair dust cut by the small blade 19 in the hair dust accumulation part 27.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an electric razor including a cylindrical fixed blade and a movable blade that is rotationally driven.

  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 (2 pages 12 lines to 4 pages 6 lines, Fig. 2)

  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, the fluff accumulated inside the reticulated outer blade is blown off by the inner blade piece and scattered outside the reticulated outer blade. For example, when the reticulated outer blade is laid down on the skin surface and pressed in a posture, the fluff accumulated on the bottom of the inner surface of the reticulated outer blade moves to the rotation region of the inner blade piece. It scatters outside the outer blade and adheres to the skin surface. The only way to prevent the scattering of the dust is to remove the mesh outer blade from the main body case every time the shave is finished, and to clean the dust remaining inside the mesh outer blade. troublesome.

  An object of the present invention is to provide an electric razor that can hold shavings cut by a movable blade and prevent the shavings from scattering out of the fixed blade, and thus can always shave in a sanitary state. There is to do.

  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 a movable blade 14 and a fixed blade 15 surrounding the movable blade 14. As shown in FIG. 1, the movable blade 14 includes a movable blade shaft 18 that is rotationally driven, and a small blade 19 that is mounted around the movable blade shaft 18. A fouling accumulation unit 27 that stores fuzz cut by the small blade 19 between the distal end of the small blade 19 that is in sliding contact with the fixed blade 15 and the mounting base end 19 a of the small blade 19 that is fixed to the movable blade shaft 18. It is characterized by forming a dent. The fixed blade 15 surrounding the movable blade 14 includes a case where the fixed blade 15 surrounds the entire circumference of the movable blade 14 and a case where the fixed blade 15 surrounds a part of the periphery of the movable blade 14.

  A mounting base end 19 a of the small blade 19 fixed to the movable blade shaft 18 is formed on a plane along the tangent line T of the peripheral surface of the movable blade shaft 18.

  When assuming a virtual reference line Q that is orthogonal to the tangent line T of the peripheral surface of the movable blade shaft 18 and passes through the contact point of the tangent line T, the fluff accumulation portion 27 is on the upper side in the rotational direction of the movable blade 14 from the virtual reference line Q. It is formed with a curved surface that is recessed.

  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.

  The small blade 19 is fixed from one end of the movable blade shaft 18 to the other end. The fluff accumulation portion 27 is inclined from one end of the movable blade shaft 18 toward the other end.

  As shown in FIG. 5, the tip of the small blade 19 is provided in parallel with the axis of the movable blade shaft 18. A cutting edge 25 provided at the tip of the small blade 19 is formed in a continuous waveform.

  An opening 26 is formed in a small blade wall continuous with the cutting edge of the small blade 19. A cutting edge 28 is formed on the opening edge of the opening 26 on the side of the fouling accumulation part 27.

  The opening 26 is inclined with respect to the axis of the movable blade shaft 18, and the cutting blade 28 formed at the opening edge of the opening 26 is inclined with respect to the axis of the movable blade shaft 18.

  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, respectively.

  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 formed in the opening 26 (see FIG. 1).

  A movable blade 14 is provided inside a fixed blade 15 formed in a cylindrical shape. A cutting region including a cutting blade 44 and a blade hole 45 is provided on the entire peripheral surface of the fixed blade 15.

  The razor head 2 is disposed on an extension of the axis P of the main body case 1 that also serves as a grip, and the fixed blade 15 is formed in a cylindrical shape that is long in the axial direction. A plurality of cutting regions having different formation patterns of the cutting blade 44 and the blade hole 45 are provided in the circumferential direction of the peripheral surface of the fixed blade 15.

  As shown in FIGS. 6 and 7, the cutting region includes a short hair cutting region Z1 that mainly cuts short hairs, and a stump hair cutting region Z2 that mainly cuts stump hairs shorter than the short hairs.

  The cutting region includes a short hair cutting region Z1 for mainly cutting short hairs, a stump hair cutting region Z2 for mainly cutting stump hairs shorter than the short hairs, and a long hair cutting region Z3 for mainly cutting comb hairs and long hairs. I have.

  A plurality of cutting regions having different formation patterns of the cutting blade 44 and the blade hole 45 are provided on the circumferential surface of the fixed blade 15 formed in a cylindrical shape over the entire circumference of the fixed blade 15. The cutting region includes a short hair cutting region Z1 that mainly cuts short hairs and a long hair cutting region Z3 that mainly cuts comb hairs and long hairs. As shown in FIG. 14, the long hair cutting region Z <b> 3 is formed at one end in the axial direction of the fixed blade 15, and the short hair cutting region Z <b> 1 is formed on the peripheral surface of the remaining fixed blade 15.

  As shown in FIG. 3, a reinforcing ring 43 that reinforces the blade body 42 is provided at at least one end in the axial direction of the blade body 42 of the fixed blade 15.

  The reinforcing ring 43 is formed of a plastic molded product. The blade body 42 is insert-fixed to the reinforcing ring 43.

  As shown in FIG. 11, a reinforcing portion 80 that is bent in the radial direction is formed at least at one end in the axial direction of the fixed blade 15.

  As shown in FIG. 3, a movable blade support shaft 16 is provided at one end of the main body case 1 so as to project inside the razor head 2 along the axis P of the case 1. The movable blade shaft 18 of the movable blade 14 is formed in a hollow cylindrical shape and is rotatably supported by the movable blade support shaft 16.

  A head cap 17 that can be attached to and detached from the movable blade spindle 16 is provided at the protruding end of the razor head 2. Both ends of the fixed blade 15 in the axial direction are supported at both ends by the head cap 17 attached to the movable blade support shaft 16 and the main body case 1.

  As shown in FIG. 12, a taper-shaped guide portion 82 is formed at the lower end of the fixed blade 15 at the lower end, and the outer surface thereof is reinforced by the reinforcing ring 43.

  The movable blade 14 attached to the movable blade support shaft 16 and the fixed blade 15 attached to the main body case 1 are secured by a head cap 17 attached to the movable blade support shaft 16. In a state where the head cap 17 is detached from the movable blade support shaft 16, the fixed blade 15 and the movable blade 14 are configured to be separable from the main body case 1 and the movable blade support shaft 16.

  As shown in FIG. 2, the main body case 1 includes a base case 3 and a head-side case 5 that is swingably connected to the base case 3 with a bending shaft 4. The head-side case 5 can swing between a first posture that is linearly continuous with the base case 3 along the axis P of the main body case 1 and a second posture that is bent and displaced from the first posture by a predetermined angle. Configure.

  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 is provided between the bending shaft 4 and the bearing portion 12 to hold the head side case 5 in the first posture and the second posture. The elastic moderation structure includes a ring-shaped moderation spring 60 fixed to one of the bending shaft 4 and the bearing portion 12, a plurality of first moderation bodies 61 provided on the moderation spring 60, the bending shaft 4 and the bearing portion 12. A plurality of second moderation bodies 62 that are engaged with and disengaged from the first moderation body 61 while elastically deforming the moderation spring 60 are provided. A razor between a second posture in which the first moderating body 61 and the second moderating body 62 are engaged with each other and a dead point where the engagement of the first moderating body 61 and the second moderating body 62 is released in the second posture. The head 2 is configured to be able to float against the spring force of the moderation spring 60.

  The number of first moderation bodies 61 and second moderation bodies 62 engaged in the first posture is set to be larger than the number of first moderation bodies 61 and second moderation bodies 63 engaged in the second posture.

  A power transmission structure for transmitting the rotational power of the motor 8 to the movable blade 14 is provided between the motor 8 provided in the base case 3 and the movable blade shaft 18 provided in the head side case 5. In the power transmission structure, the drive gear 85 that transmits the rotational power of the motor 8, the passive gear 86 fixed to the movable blade shaft 18, and the drive gear 85 and the passive gear 86 are simultaneously meshed with each other to passively drive the power of the drive gear 85. A face gear 84 that is transmitted to the gear 86 is included.

  The motor 8 and the power transmission structure for transmitting the rotational power of the motor 8 to the movable blade 14 are provided in the head side case 5 of the main body case 1.

  The central axis of the motor 8 provided in the head side case 5 is inclined with respect to the axis P of the main body case 1. As shown in FIG. 3, the power transmission structure includes a flexible shaft 69 fixed to the output shaft of the motor 8, a drive gear 70 fixed to the output end of the flexible shaft 69, and a drive gear 70 fixed to the movable blade shaft 18. The driven gear 20 is meshed.

  An illuminating body 75 that illuminates the skin surface is disposed at the end of the main body case 1. The optical axis of the illuminating body 75 is directed toward the outer peripheral surface of the razor head 2.

  On the peripheral surface of the main body case 1, rib-shaped finger hooking projections 11 are formed along the axis P of the main body case 1.

  In the present invention, the movable blade 14 is composed of the movable blade shaft 18 and the small blade 19 attached to the movable blade shaft 18, and the fluff accumulation portion 27 is recessed between the tip of the small blade 19 and the mounting base end 19 a. It was formed so that the shavings cut by the small blade 19 can be held and stored in the shavings accumulation part 27. According to such an electric razor, as long as the movable blade 14 is driven to rotate, the chips cut by the movable blade 14 are held in the chip collection part 27 and the chips are blown off by the small blade 19. Therefore, it is possible to prevent the fixed blade 15 from being scattered outside, and thus it is possible to always shave in a hygienic state. It should be noted that the hair chips held in the hair chip accumulation portion 27 can be removed by washing with water. When washing with water cannot be performed, the fixed blade 15 and the movable blade 14 are separated from the main body case 1 with the driving of the movable blade 14 stopped, and then the hair is scraped from the hair collection portion 27 using a brush or the like. Can be removed.

  When the mounting base end 19a of the small blade 19 is formed in a plane along the tangent line T of the peripheral surface of the movable blade shaft 18, the mounting base end 19a is applied when a moment associated with cutting resistance at the time of cutting the beard acts on the mounting base end 19a. Since it is elastically deformed toward the peripheral surface side of the movable blade shaft 18, the previous moment (moment associated with cutting resistance at the time of cutting the whiskers) 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 from causing fatigue failure.

  If 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 dent shape and the depth of the fluff accumulation portion 27 can be freely selected as necessary. In addition, the fluff accumulation portion 27 can be easily formed. In addition, the volume of the hair collection unit 27 can be increased, and a larger amount of the hair collection can be held inside the hair collection unit 27. Further, it is possible to well prevent the cut fuzz from jumping out of the fouling accumulation portion 27 due to the centrifugal force of the small blade 19.

  When the tip of the small blade 19 protrudes from the virtual reference line Q to the lower side in the rotational direction of the movable blade 14, the tip of the small blade 19 shifts toward the upper side in the rotational direction of the movable blade 14 due to the cutting resistance at the time of cutting the beard. Even so, it is possible to reliably prevent the tip of the small blade 19 from moving beyond the virtual reference line Q toward the upper side in the rotational direction of the movable blade 14. Therefore, it is possible to prevent the tip of the small blade 19 from striking the inner surface of the fixed blade 15 and damaging either the tip of the small blade 19 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.

  When the fluff accumulation portion 27 is inclined from the lower end side toward the upper end side of the movable blade shaft 18, at the time of washing with water, the fluff flows together with the washing water along the inclined fluff accumulation portion 27, and the razor head 2. It is possible to surely and easily wash away the fluff toward the head cap 17 at the upper end of the head.

  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 done effectively.

  When the opening 26 is formed in the small blade wall continuous with the cutting edge of the small blade 19, the fluff adhering to the inner surface of the fixed blade 15 can be introduced from the opening 26 and held in the fluff accumulation portion 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. In addition, if the cutting edge 28 is formed on the opening edge of the opening 26 on the side of the fluff accumulation portion 27, the chance of capturing beards by the cutting edge 25 provided at the cutting edge of the small blade 19 and the cutting edge 28 provided at the opening 26 increases. The beard cutting can be performed more effectively.

  When the cutting blade 28 formed on the opening edge of the opening 26 is inclined with respect to the axis of the movable blade shaft 18, the cutting can be performed with the inclined blade portion of the cutting blade 28, so that the beard cutting can be performed effectively. .

  If 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 lint collecting portion 27, the chance of capturing the beard by both the cutting blades 25 and 28 increases, so that the beard cutting is further performed. It can be done effectively.

  When the cutting edge angle θ1 of the cutting blade 25 is set to be larger than the cutting edge angle θ2 of the cutting blade 28 formed in the opening 26, the beard that is difficult to cut is captured by the cutting blade 25 at the tip of the small blade 19 and is placed inside the fixed blade 15. Since the whiskers in this state can be cut with the sharper cutting edge 28 on the opening 26 side, the shaving can be deeper than when the whiskers are cut with the cutting edge 25 alone.

  If the movable blade 14 is provided inside the fixed blade 15 formed in a cylindrical shape, and the cutting region including the cutting blade 44 and the blade hole 45 is provided on the entire peripheral surface of the fixed blade 15, any arbitrary peripheral surface of the fixed blade 15 is provided. The beard cutting can be performed on the peripheral surface. Therefore, compared to the case where the cutting region is partially provided on the peripheral surface of the fixed blade 15, the beard can be cut by simply applying an arbitrary peripheral surface of the fixed blade 15 to the skin surface, and the fixed blade hitting the skin surface Even when the circumferential surface position of 15 changes, the whisker can be cut continuously.

  When the fixed blade 15 is formed in a cylindrical shape that is long in the axial direction, and a plurality of cutting regions having different formation patterns of the cutting blade 44 and the blade hole 45 are provided in the circumferential direction of the fixed blade 15, the length of the beard and the density of the beard are increased. By appropriately using each cutting area according to the degree of difference, whiskers can be cut quickly and effectively.

  When the fixed blade 15 is provided with a short hair cutting region Z1 for mainly cutting short hairs and a stump hair cutting region Z2 for mainly cutting stump hairs shorter than short hairs, after shaving in the short hair cutting region Z1, It is possible to finish shave at the stump hair cutting region Z2. Therefore, compared to the case where only the short hair cutting region Z1 or only the stump hair cutting region Z2 is formed on the fixed blade 15, the hair cutting can be efficiently performed in a shorter time, and the burden on the skin surface can be reduced.

  When the fixed blade 15 is provided with a short hair cutting region Z1, a stump hair cutting region Z2, and a long hair cutting region Z3 for mainly cutting comb hairs and long hairs, depending on the length of the beard, the density of the beard, etc. By properly using the cutting regions Z1 to Z3, it is possible to perform whisker cutting quickly and effectively.

  When the long hair cutting region Z3 is formed at one end in the axial direction of the fixed blade 15 and the short hair cutting region Z1 is formed on the peripheral surface of the remaining fixed blade 15, the position of the fixed blade 15 that contacts the skin surface is set to the axis P of the main body case 1. It is possible to quickly change the cutting region that hits the skin surface between the short hair cutting region Z1 and the long hair cutting region Z3 simply by shifting along. In addition, when the short hair cutting area | region Z1 and the long hair cutting area | region Z3 are provided in the state adjacent to the circumferential direction of the fixed blade 15, the grip position of the main body case 1 is changed to the circumferential direction, and the cutting | disconnection which hits a skin surface Since it is necessary to change the area, it takes time and effort.

  When the reinforcing ring 43 is provided on at least one end of the blade body 42 in the axial direction, the reinforcing ring 43 can restrict the blade 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.

  If the blade main body 42 is insert-fixed at the time of forming the reinforcing ring 43, there is no need to separately provide a structure for integrating the blade main body 42 and the reinforcing ring 43, and the structure of the fixed blade 15 can be simplified.

  When the reinforcing portion 80 that is bent in the radial direction is formed at least at one end in the axial direction of the fixed blade 19, the reinforcing portion 80 restricts the blade main body 42 from being elastically deformed radially inward. Strength can be further increased. Accordingly, when the structural strength of the fixed blade 15 is constant, the thickness of the fixed blade 15 can be made thinner and deeper.

  When the movable blade support shaft 16 is provided at one end of the main body case 1 and the movable blade shaft 18 formed in a hollow cylindrical shape is rotatably supported by the movable blade support shaft 16, the vertically long movable blade 14 is light and stable. Can be supported in a rotatable manner, and the driving load of the motor 8 can be reduced to reduce power consumption. Moreover, since the movable blade 14 can be rotationally driven in a stable state, the beard cutting can be performed uniformly.

  When both ends of the fixed blade 15 in the axial direction are supported by the head cap 17 attached to the movable blade support shaft 16 and the main body case 1, the cylindrical fixed blade 15 is securely fixed by the head cap 17 and the main body case 1. Can hold. Therefore, the fixed blade 15 pressed against the skin surface is prevented from being tilted or displaced in the direction of the central axis due to the skin reaction force, 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.

  When a taper-shaped guide portion 82 is formed at the lower end of the fixed blade 15 and its outer surface is reinforced by the reinforcing ring 43, the reinforcing ring 43 restricts the blade body 42 from elastically deforming radially inward. Thus, the structural strength of the blade body 42 can be improved. In addition, since the fixed blade 15 can be assembled to the movable blade 14 by using the pointed taper-shaped guide portion 82 formed at least below the fixed blade 15 as a guide, the fixed blade 15 can be assembled to the movable blade 14. It can be done easily. Maintenance of the movable blade 14 and the fixed blade 15 can be facilitated.

  If the movable blade 14 and the fixed blade 15 are secured and fixed by the head cap 17 attached to the movable blade support shaft 16, the fixed blade 15 can be removed from the movable blade support shaft 16 only by removing the head cap 17 from the main body case 1. Further, the movable blade 14 can be separated from the movable blade support shaft 16. Therefore, assembly and maintenance of the movable blade 14 and the fixed blade 15 can be facilitated.

  As shown in FIG. 2, the base case 3 and the head side case 5 constitute the main body case 1, and according to the electric razor that allows the head side case 5 to swing between the first posture and the second posture. The beard cutting can be performed by changing the posture of the head side case 5 in accordance with the skin surface state of the beard cutting portion. For example, when cutting the beard on the side of the side or the lower side of the chin, the head case 5 is bent and the beard is cut so that the base case 3 does not need to be frequently gripped and the beard can be used in a more comfortable posture. Can cut.

  When an elastic moderation structure including a moderation spring 60, a first moderation body 61, and a second moderation body 62 is provided between the bending shaft 4 and the bearing portion 12, the head side case 5 is positioned in the first position and the second position. Since it can hold | maintain, beard cutting can be performed in the stable state in each attitude | position. Further, in the state where the head side case 5 is switched to the second posture, the razor head 2 is floated against the spring force of the moderation spring 60 between dead points, so that the fixed blade 15 is excessively pressed against the skin surface. This eliminates the burden on the skin.

  When the number of the first moderation bodies 61 and the second moderation bodies 62 engaged in the first posture is set larger than the number of the first moderation bodies 61 and the second moderation bodies 63 engaged in the second posture, the head side case 5 can be returned from the second posture to the first posture with a smaller force. 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.

  If a power transmission structure is provided between the motor 8 provided in the base case 3 and the movable blade shaft 18 provided in the head side case 5, the head side case 5 is held in a bent state in the second posture. Can be resolved. Further, when a power transmission structure is constituted by the drive gear 85 and the passive gear 86 and the face gear 84 that meshes with both the gears 85 and 86 at the same time, a motor lead that supplies a drive current to the motor 8 provided in the base case 3 is provided. Since it is not bent, it is possible to eliminate the disconnection of the motor lead.

  When the motor 8 and a power transmission structure for transmitting the rotational power of the motor 8 to the movable blade 14 are provided in the head side case 5 of the main body case 1, for example, the motor 8 and the movable blade shaft 18 are directly connected, or the motor 8 or the deceleration is performed. The movable blade 14 can be rotationally driven by driving the driven gear 20 of the movable blade shaft 18 with the drive gear 70 fixed to the output shaft of the unit 9. Therefore, the power transmission structure for the movable blade 14 can be remarkably simplified and its cost can be reduced.

  The reason why the central axis of the motor 8 provided in the head side case 5 is inclined with respect to the axis P of the main body case 1 is to avoid the head side case 5 from becoming large and to be lifted. . Further, 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 two 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.

  When the illuminating body 75 is arranged at the end of the main body case 1 and its optical axis is directed toward the outer peripheral surface of the razor head 2, it illuminates the skin surface and the whiskers with the illumination light emitted from the illuminating body 75. Can cut beard. Therefore, it is possible to accurately cut the beard while accurately grasping the state of the beard and the cutting state of the beard.

  When a plurality of cutting regions provided with the cutting blade 44 and the blade hole 45 are provided on the peripheral surface of the fixed blade 15, the gripping position of the main body case 1 is changed in the circumferential direction so that the cutting region is adapted to the state of the beard. Cut the beard with In such a case, when the rib-like finger hooking protrusion 11 is formed on the peripheral surface of the main body case 1 along the axis P, the posture of the main body case 1 is changed using the rib-like finger hooking protrusion 11. Thus, the posture change can be performed accurately, so that the beard cutting can be performed more easily in the cutting region adapted to the state of the beard.

It is sectional drawing which shows the cutting blade structure of the electric shaver which concerns on Example 1 of this invention. 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.

Example 1 FIGS. 1 to 10 show Example 1 in which the present invention is applied to a cylinder-type electric shaver. 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 the present embodiment includes a main body case 1 that also serves as a grip, and a razor head 2 that is supported by 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 bending shaft 4. The battery 6 and the control board 7 are accommodated in the base case 3. In addition, 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 includes a movable blade 14, a cylindrical fixed blade 15 surrounding the movable blade 14, a movable blade support shaft 16 that pivotally supports the movable blade 14, and a movable A head cap 17 that is attached to the blade support shaft 16 and holds the movable blade 14 and the fixed blade 15 in place is 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 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.

  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 P of the movable blade shaft 18. A line connecting the protruding edge (tip) of the cutting edge 25 having a continuous waveform is provided in parallel with the axis P 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 electric razor described above, in order to eliminate the swarf 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 T, the fluff accumulation portion 27 is movable from the virtual reference line Q. It is formed with a curved surface that is recessed toward the upper side in the rotational direction of the blade 14, and the tip of the small blade 19 including the cutting blade 25 is moved by the dimension a from the virtual reference line Q toward the lower side in the rotational direction of the movable blade 14. It is protruding. 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.

  In FIG. 3, 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 move up and down at two upper and lower portions of the movable blade support shaft 16, and the movable blade shaft 18 is rotatably supported by the bearing 31. 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 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 fixed blade 15 includes an endless cylindrical blade body 42 that is long in the vertical direction, and reinforcing rings 43 that are fixed to 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 embodiment, as shown in the developed view of FIG. 7, a short hair cutting region Z1 that mainly cuts short hairs, a stump hair cutting region Z2 that mainly cuts stump hairs shorter than short hairs, and mainly comb hairs In addition, three types of cutting regions, the long hair cutting region Z3 for cutting long hairs, are formed on the peripheral surface of the blade body 42. 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 blade hole 45 of the long hair cutting region Z3 is formed in a long groove shape that is long in the circumferential direction, and can effectively introduce comb hair and long hair. 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.

  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.

  As shown in FIG. 2, the head side case 5 is connected to the base case 3 by a bending shaft 4 so as to be swingable back and forth, and is continuous with the base case 3 along the axis P of the main body case 1. Can be swung between a first posture (a state indicated by a solid line in FIG. 2) and a second posture (a state indicated by an imaginary line in FIG. 2) bent and displaced 90 degrees forward from the first posture. 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. 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 bending shaft 4 and the bearing portion 12 that supports the coaxial shaft 4.

  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 bending 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 bending shaft 4 and two moderation protrusions (first moderation bodies) 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 connection piece 65 is engaged and fixed in a connection groove 66 formed on the bending shaft 4, so that the moderation spring 60 is integrated with the bending shaft 4. It has become.

  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 provided at the center of the lower surface of the bearing portion 12 as shown in FIG. 63 is engaged. 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 in the state where the head side case 5 is switched to the second posture, the razor head 2 receives the skin reaction force and tries to rotate counterclockwise in FIG. . 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. 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 62. 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 excessive pressing of the fixed blade 15 against the skin surface is eliminated, and a large load is applied to the skin surface. Can be eliminated. In the first posture, the two moderation protrusions 61 are engaged with the moderation recess 62, 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.

  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.

  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 tilted or displaced in the direction of the central axis due to the skin reaction force, 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.

  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. Regarding the elastic moderation structure, the bending 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 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 of the present invention 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 FIG. 12 shows Example 3 of the present invention in which a part of the structure of the fixed blade 15 is changed. 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 of the present invention 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 of the present invention 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 axial direction of the fixed blade 15, and the short hair cutting region Z1 is formed in a circular shape on the remaining peripheral surface of the fixed blade 15. With respect to the length in the axial 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 on the upper end side (free end side) of the fixed blade 15, the posture and angle of the long hair cutting region Z3 when the long hair cutting region Z3 is applied to the portion where the long hair grows can be freely selected. it can. 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.

Example 6 FIGS. 15 and 16 show Example 6 of the present invention 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 bending 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. In addition, 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 disconnected. it can.

  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 razor according to Example 7 of the present invention. 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. In addition, since the fluff accumulation portion 27 is formed in the sleeve 89 provided separately, the head cap 17 is separated from the movable blade support shaft 16, and further, the sleeve 89 is removed from the movable blade 14 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 the electric razor according to the first to seventh embodiments in which the movable blade 14 is a rotating blade, the fixed blade 15 may be formed in a truncated cone shape.

  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 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 is composed of a linear blade-shaped movable blade shaft 102 that is vertically long and six small blades 103 fixed at regular intervals along the movable blade shaft 102. To do. The movable blade shaft 102 is pivotally supported 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 so that the movable blade shaft 102 can slide up and down. 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 lower end of the blade body 42, and a screw hole 111 provided on the reinforcing ring 43 is provided with a screw hole provided on the inner peripheral surface of the mounting seat 54. It is integrated with the head side case 5 by being screwed into 112. 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 5 is connected via a face gear 84 in which the rotational power of the motor 8 is disposed on the central axis of the bending shaft 4. Is transmitted to. 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. The upper end of the crankshaft 107 is connected to the lower end of the movable blade shaft 102 by a pin 108 so as to be relatively tiltable, and the lower end of the crankshaft 107 is connected to the gear end face of the face gear 84 so as to be relatively tiltable by an eccentric pin 109. . 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. 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.

DESCRIPTION OF SYMBOLS 1 Main body case 2 Razor head 3 Base case 4 Bending shaft 5 Head side case 8 Motor 11 Finger hooking protrusion 12 Bearing part 14 Movable blade 15 Fixed blade 16 Movable blade spindle 17 Head cap 18 Movable blade shaft 19 Small blade 19a Mounting base end 20 Follower gear 25 Cutting edge 26 Opening 27 Flue accumulation part 28 Cutting edge 31 Bearing
42 Blade body 43 Reinforcement ring 44 Cutting blade 45 Blade hole 60 Moderation spring 61 First moderation body (moderation protrusion)
62 Second moderation body (moderation recess)
69 Flexible shaft 70 Drive gear 75 Illuminator 80 Reinforcement part 81 Guide part 82 Guide part 84 Face gear 85 Drive gear 86 Passive gear P Axis line Q Virtual reference line Z1 Short hair cutting area Z2 Stump hair cutting area Z3 Long hair cutting area θ1 Blade edge angle θ2 Cutting edge angle

Claims (30)

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 mounted around the movable blade shaft (18).
Cutting with the small blade (19) between the tip of the small blade (19) slidingly contacting the fixed blade (15) and the mounting base end (19a) of the small blade (19) fixed to the movable blade shaft (18) An electric shaver characterized in that a fluff accumulation portion (27) for storing the produced fluff is recessed.   The mounting base end (19a) of the small blade (19) fixed to the movable blade shaft (18) is formed in a plane along the tangent (T) of the peripheral surface of the movable blade shaft (18). Electric razor. When assuming a virtual reference line (Q) orthogonal to the tangent (T) of the peripheral surface of the movable blade axis (18) and passing through the contact point of the tangent (T),
The electric shaver according to claim 1 or 2, wherein the fluff accumulation portion (27) is formed of 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 electric shaver according to claim 3, wherein 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). The small blade (19) is fixed from one end of the movable blade shaft (18) to the other end,
The electric shaver according to any one of claims 1 to 4, wherein the fluff accumulation portion (27) is inclined from one end of the movable blade shaft (18) toward the other end. The tip of the small blade (19) is provided in parallel with the axis of the movable blade shaft (18),
The electric shaver according to any one of claims 1 to 4, wherein the cutting blade (25) provided at the tip of the small blade (19) is formed in a continuous waveform. An opening (26) is formed in the small blade wall continuous to the cutting edge of the small blade (19),
The electric shaver according to any one of claims 1 to 6, wherein a cutting blade (28) is formed at an opening edge of the opening (26) on the side of the fouling accumulation portion (27). The opening (26) is inclined with respect to the axis of the movable blade axis (18);
The electric shaver according to claim 7, wherein the cutting edge (28) formed at the opening edge of the opening (26) is inclined with respect to the axis of the movable blade axis (18).   The cutting edge (25, 28) is formed in each of the front-end | tip of a small blade (19) and the opening edge by the side of the fluff accumulation part (27) of the said opening (26), The Claim 7 or 8 Electric razor.   The blade edge angle (θ1) of the cutting blade (25) provided at the tip of the small blade (19) is set larger than the blade edge angle (θ2) of the cutting blade (28) formed in the opening (26). The electric razor according to 9. A movable blade (14) is provided inside a fixed blade (15) formed in a cylindrical shape,
The electric shaver according to any one of claims 1 to 10, wherein 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 razor head (2) is disposed on an extension of the axis (P) of the main body case (1) that also serves as a grip, and the fixed blade (15) is formed in a cylindrical shape that is long in the axial direction.
The electric shaver according to claim 11, wherein a plurality of cutting regions having different formation patterns of the cutting blade (44) and the blade hole (45) are provided in the circumferential direction of the peripheral surface of the fixed blade (15).   The electricity according to claim 12, wherein the cutting region comprises a short hair cutting region (Z1) for mainly cutting short hairs, and a stump hair cutting region (Z2) for mainly cutting stump hairs shorter than the short hairs. Razor.   The cutting region is a short hair cutting region (Z1) for mainly cutting short hairs, a stump hair cutting region (Z2) for mainly cutting stump hairs shorter than the short hairs, and a long hair for mainly cutting comb hairs and long hairs The electric shaver according to claim 12 or 13, comprising a cutting region (Z3). A plurality of cutting regions having different formation patterns of the cutting blade (44) and the blade hole (45) are provided over the entire circumference of the fixed blade (15) on the peripheral surface of the fixed blade (15) formed in a cylindrical shape. ,
The cutting region mainly comprises a short hair cutting region (Z1) for cutting short hairs, and a long hair cutting region (Z3) for mainly cutting comb hairs and long hairs,
The long hair cutting region (Z3) is formed at one end in the axial direction of the fixed blade (15), and the short hair cutting region (Z1) is formed on the peripheral surface of the remaining fixed blade (15). Electric razor.   The reinforcement ring (43) which reinforces a blade main body (42) is provided in the at least one end of the axial direction of the blade main body (42) of a fixed blade (15) as described in any one of Claim 11 to 15 provided. Electric razor. The reinforcing ring (43) is formed of a plastic molded product,
The electric shaver according to claim 16, wherein the blade body (42) is insert-fixed to the reinforcing ring (43).   The electric shaver according to claim 16 or 17, wherein a reinforcing portion (80) bent in a radial direction is formed at least at one end in the axial direction of the fixed blade (15). A movable blade support shaft (16) is provided at one end of the main body case (1) so as to project inside the razor head (2) along the axis (P) of the case (1).
The electric shaver according to any one of claims 11 to 18, wherein the movable blade shaft (18) of the movable blade (14) is formed in a hollow cylindrical shape and is rotatably supported by the movable blade support shaft (16). . A head cap (17) that can be attached to and detached from the movable blade spindle (16) is provided at the tip of the razor head (2).
The electric shaver according to claim 19, wherein both ends of the fixed blade (15) in the axial direction are both supported by a head cap (17) and a main body case (1) attached to the movable blade support shaft (16).   The electric razor according to claim 20, wherein a tapered guide part (82) is formed at least at the lower end of the upper and lower ends of the fixed blade (15), and the outer surface thereof is reinforced by a reinforcing ring (43). . The movable blade (14) attached to the movable blade support shaft (16) and the fixed blade (15) attached to the main body case (1) are secured by the head cap (17) attached to the movable blade support shaft (16). Has been
In a state where 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 main body case (1) and the movable blade support shaft (16). The electric shaver according to any one of claims 19 to 21, which is configured. The main body case (1) is composed of a base case (3) and a head side case (5) coupled to the base case (3) so as to be swingable by a bending shaft (4).
A first posture in which the head side case (5) continues linearly with the base case (3) along the axis (P) of the main body case (1), and a second posture in which the head side case (5) is bent and displaced from the first posture by a predetermined angle. The electric shaver according to any one of claims 11 to 22, wherein the electric shaver is configured so as to be able to swing between the two. The bending shaft (4) provided on one of the base case (3) and the head side case (5) is supported by a bearing (12) provided on the other side so as to be relatively swingable.
An elastic moderation structure is provided between the bending shaft (4) and the bearing portion (12) to hold the head case (5) in the first posture and the second posture,
The elastic moderation structure has a ring-shaped moderation spring (60) fixed to one of the bending shaft (4) and the bearing portion (12), and a plurality of first moderation bodies (61) provided on the moderation spring (60). ), And a plurality of second moderator bodies (4) that are provided on the other remaining of the bending shaft (4) and the bearing portion (12) and that elastically deform the moderation spring (60) and engage with and disengage from the first moderation body (61). 62)
The second posture in which the first moderating body (61) and the second moderating body (62) engage with each other, and the engagement of the first moderating body (61) and the second moderation body (62) in the second posture is released. 24. An electric razor according to claim 23, wherein the razor head (2) is configured to float against the spring force of the moderation spring (60) between dead points.   The number of first moderation bodies (61) and second moderation bodies (62) engaged in the first posture is the number of first moderation bodies (61) and second moderation bodies (63) engaged in the second posture. The electric shaver according to claim 24, wherein the electric shaver is set larger. Between the motor (8) provided in the base case (3) and the movable blade shaft (18) provided in the head side case (5), the rotational power of the motor (8) is transferred to the movable blade (14). ) Is provided with a power transmission structure,
The power transmission structure includes a drive gear (85) that transmits the rotational power of the motor (8), a passive gear (86) fixed to the movable blade shaft (18), a drive gear (85), and a passive gear (86). 26. An electric shaver according to any one of claims 23 to 25, including a face gear (84) that meshes simultaneously and transmits the power of the drive gear (85) to the passive gear (86).   The motor (8) and a power transmission structure for transmitting the rotational power of the motor (8) to the movable blade (14) are provided in the head side case (5) of the main body case (1). The electric razor as described in any one. The central axis of the motor (8) provided in the head side case (5) is inclined with respect to the axis (P) of the main body case (1),
The power transmission structure is fixed to the flexible shaft (69) fixed to the output shaft of the motor (8), the drive gear (70) fixed to the output end of the flexible shaft (69), and the movable blade shaft (18). 28. An electric shaver according to claim 27, comprising a driven gear (20) meshing with the drive gear (70). An illuminating body (75) for illuminating the skin surface is disposed at the end of the main body case (1),
The electric razor according to any one of claims 12 to 28, wherein the optical axis of the illuminating body (75) is directed toward the outer surface of the razor head (2).   30. The electric razor according to claim 29, wherein a rib-like finger hooking projection (11) along the axis (P) of the main body case (1) is formed on the peripheral surface of the main body case (1).

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