WO2014155970A1 - Electric razor - Google Patents

Electric razor Download PDF

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Publication number
WO2014155970A1
WO2014155970A1 PCT/JP2014/001058 JP2014001058W WO2014155970A1 WO 2014155970 A1 WO2014155970 A1 WO 2014155970A1 JP 2014001058 W JP2014001058 W JP 2014001058W WO 2014155970 A1 WO2014155970 A1 WO 2014155970A1
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WO
WIPO (PCT)
Prior art keywords
vibration
unit
force
iron core
outer blade
Prior art date
Application number
PCT/JP2014/001058
Other languages
French (fr)
Japanese (ja)
Inventor
憲二 成田
新太郎 松尾
佐近　茂俊
茂 立田
中山　敏
Original Assignee
パナソニック 株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by パナソニック 株式会社 filed Critical パナソニック 株式会社
Publication of WO2014155970A1 publication Critical patent/WO2014155970A1/en

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
    • B26B19/28—Drive layout for hair clippers or dry shavers, e.g. providing for electromotive drive
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
    • H02K33/02—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with armatures moved one way by energisation of a single coil system and returned by mechanical force, e.g. by springs
    • H02K33/04—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with armatures moved one way by energisation of a single coil system and returned by mechanical force, e.g. by springs wherein the frequency of operation is determined by the frequency of uninterrupted AC energisation

Definitions

  • the present invention relates to an electric razor.
  • Patent Document 1 discloses an example of a conventional electric razor.
  • FIG. 5 shows an electric razor 900 of Patent Document 1.
  • the electric razor 900 has a grip portion 910, a blade head 920, a solenoid 930, and a rod 940.
  • the blade head 920 includes a head housing 921, an outer blade 922, and a head base 923.
  • the solenoid 930 is disposed inside the grip portion 910.
  • the solenoid 930 has a frame 931, a bobbin 932, a coil 933, a fixed iron core 934, and a movable iron core 935.
  • the fixed iron core 934 and the movable iron core 935 are opposed to each other with a gap 936 interposed therebetween.
  • the coil 933 is wound around the bobbin 932.
  • the rod 940 is coupled to the movable iron core 935.
  • the tip of the rod 940 is coupled to the head base 923.
  • the solenoid 930 reciprocates the movable iron core 935 and the rod 940 by repeatedly energizing and de-energizing the coil 933.
  • the solenoid 930 vibrates the blade head 920 by reciprocating the rod 940. For this reason, the force which presses the blade head 920 against skin becomes large.
  • the movable iron core 935 is separated from the fixed iron core 934 as the load on the blade head 920 increases. For this reason, the gap 936 becomes large. For this reason, the movable iron core 935 receives a small suction force from the fixed iron core 934. For this reason, the force which presses the blade head 920 against skin becomes small.
  • the electric razor 900 has a structure that reduces the vibration force of the blade head 920 as the load of the blade head 920 increases.
  • This structure is intended to maintain the pressing force by which the user presses the blade head 920 against the skin and the resultant force of the vibration force transmitted from the solenoid 930 to the blade head 920 at a constant magnitude.
  • the inventors of the present application have found that the electric razor 900 has the following problems.
  • the vibration force of the solenoid 930 when the pressing force generated by the user exceeds a certain value, the vibration force of the solenoid 930 is not generated or the vibration force of the solenoid 930 has a minute magnitude.
  • the vibration force of the solenoid 930 does not change even if the pressing force by the user increases when the pressing force by the user has a magnitude greater than a certain value. That is, the resultant force of the pressing force by the user and the vibration force of the solenoid 930 increases substantially depending only on the pressing force when the pressing force by the user has a magnitude greater than a certain value.
  • the blade head 920 increases the amount of skin to be introduced as the pressing force by the user increases. For this reason, in the electric shaver 900, when the pressing force by the user increases to a certain value or more, there is a possibility that the skin is excessively introduced into the blade head 920. When the skin is excessively introduced into the blade head 920, the skin may be damaged by the reciprocating motion of the inner blade of the blade head 920.
  • An object of the present invention is to provide an electric razor that contributes to making it difficult to damage the skin.
  • the electric razor includes a hair removal part, a main body part that supports the hair removal part, and a vibration generation part including a magnetic force generation part and an output movable part
  • the magnetic force generation part includes a coil and an input side iron core
  • the magnetic force generating unit forms a magnetic field by the coil, and causes the attractive force of the input side iron core to act on the output movable unit
  • the output movable unit is configured to generate the magnetic force generating unit based on the attractive force of the input side iron core.
  • An output-side iron core that moves relative to the output-side iron core, and a vibration component that is coupled to the output-side iron core and transmits vibration to the hair removal unit based on the relative movement of the output-side iron core.
  • the output side iron core is configured to approach the input side iron core as the load on the hair removal portion increases.
  • the vibration generating unit is configured to reduce the gap formed between the hair removal unit and the vibration component as the load on the hair removal unit increases, and the vibration component includes the gap. It is preferable that vibration is not transmitted to the hair removal part when it exists, and vibration is transmitted to the hair removal part when the gap is not present.
  • the electric razor includes a position adjusting unit, and the position adjusting unit is configured to change an initial position of the hair removal unit with respect to the vibrating component.
  • This electric razor contributes to making it hard to damage the skin.
  • a form of electric shaver subordinate to an independent form has the following matters.
  • the electric razor is configured to reduce a gap formed between the hair removal portion and the vibration component as the load on the hair removal portion increases.
  • the vibration component does not transmit vibration to the hair removal part when a gap exists, and transmits vibration to the hair removal part when no gap exists.
  • a form of electric shaver subordinate to an independent form has the following matters.
  • the electric razor has a position adjustment unit, and the position adjustment unit is configured to change the initial position of the hair removal unit with respect to the vibration component.
  • FIG. 1 shows an embodiment of an electric razor 1.
  • the electric razor 1 includes a main body unit 10, a hair removal unit 20, an inner blade drive unit 50, a power switch 60, a control unit 70, a power supply unit 80, a vibration generation unit 100, and a vibration input unit 130.
  • the longitudinal direction of the electric razor 1 indicates both directions in the longitudinal direction when the electric razor 1 is viewed from the front.
  • the width direction of the electric razor 1 indicates a bidirectional direction orthogonal to the longitudinal direction when the electric razor 1 is viewed from the front.
  • the depth direction of the electric razor 1 indicates both directions orthogonal to the longitudinal direction and the width direction in the front view of the electric razor 1.
  • the main body 10 has a shape that can be gripped by the user.
  • the main body 10 supports the hair removal unit 20.
  • the main body unit 10 accommodates a part of the inner blade driving unit 50, the control unit 70, the power supply unit 80, and the vibration generating unit 100 inside the main body unit 10.
  • the hair removal unit 20 includes an outer blade block 30 and an inner blade block 40.
  • the hair removal unit 20 reciprocates the inner blade block 40 relative to the outer blade block 30 in the width direction of the electric razor 1.
  • the hair removal unit 20 shave the hair introduced into the outer blade block 30 by the reciprocating motion of the inner blade block 40.
  • the outer blade block 30 includes an outer blade case 31, an outer blade 32, and an outer blade inner space 33.
  • the outer blade block 30 has a structure in which an outer blade case 31 and an outer blade 32 formed as individual parts are coupled to each other.
  • the outer blade block 30 accommodates the inner blade block 40 in the outer blade inner space 33 (see FIG. 2).
  • the outer blade block 30 is pressed against the skin 200 by the pressing force FF of the user when the electric razor 1 is used for hair removal.
  • the pressing force FF indicates a force applied by the user to the skin 200 via the outer blade block 30 when the outer blade block 30 is pressed against the skin 200.
  • the outer blade block 30 receives a reaction force from the skin 200 when pressed against the skin 200.
  • the reaction force that the outer blade block 30 receives from the skin 200 (hereinafter, “skin reaction force FR”) changes according to the pressing force FF.
  • the outer blade case 31 is coupled to the main body 10 via a floating structure.
  • the floating structure changes the posture of the outer cutter case 31 with respect to the main body 10.
  • the outer cutter case 31 can be displaced in the width direction, the height direction, and the depth direction with respect to the main body 10.
  • the outer cutter case 31 can be displaced in the rotational direction with respect to the main body 10 around an axis parallel to the width direction and an axis parallel to the depth direction.
  • the outer blade 32 has a plurality of outer blade holes (not shown).
  • the outer blade 32 introduces bristles into the outer blade inner space 33 through the outer blade hole.
  • the outer blade 32 introduces the skin 200 into the outer blade inner space 33 through the outer blade hole.
  • the amount of skin 200 introduced into the outer blade inner space 33 (hereinafter referred to as “skin introduction amount S”) is defined as the volume of the skin 200 existing on the outer blade inner space 33 side with respect to the outer blade hole as an example. Can do.
  • the inner blade block 40 includes a joint component 41 and an inner blade 42.
  • the inner blade block 40 has a structure in which a joint part 41 and an inner blade 42 formed as individual parts are coupled to each other.
  • the inner blade block 40 shaves hair in cooperation with the outer blade block 30.
  • the joint component 41 is coupled to the inner blade 42 at a portion close to the outer blade case 31.
  • the joint component 41 is coupled to the inner blade drive unit 50 at a portion close to the main body 10.
  • the joint component 41 has a structure capable of displacement in the width direction with respect to the main body 10 and the outer blade block 30.
  • the inner blade drive unit 50 includes a linear actuator as an example.
  • the inner blade drive unit 50 is driven based on a drive signal supplied from the control unit 70.
  • the inner blade drive unit 50 reciprocates the joint component 41 in the width direction of the electric razor 1.
  • the vibration generating unit 100 transmits the vibration force FV to the outer blade block 30 via the vibration input unit 130.
  • the vibration force FV of the vibration generating unit 100 acts in the height direction of the outer blade block 30.
  • the vibration generating unit 100 suppresses the skin introduction amount S from being larger than the appropriate range by supplying the vibration force FV to the outer blade block 30.
  • the power switch 60 is formed on the case of the main body 10.
  • the power switch 60 has the form of a human machine interface.
  • the power switch 60 is operated to turn on and off the power of the electric shaver 1.
  • the power switch 60 supplies an operation signal to the control unit 70 every time it is pushed.
  • the control unit 70 controls at least the inner blade driving unit 50 and the vibration generating unit 100.
  • the control unit 70 starts driving the inner blade driving unit 50 and the vibration generating unit 100 when the power switch 60 is turned on.
  • the control unit 70 stops driving the inner blade driving unit 50 and the vibration generating unit 100 when the power switch 60 of the main body unit 10 is turned off.
  • the power supply unit 80 is disposed inside the main body unit 10.
  • the power supply unit 80 supplies the power of the primary battery or the secondary battery to the power block of the electric shaver 1.
  • the power block of the electric razor 1 includes an inner blade driving unit 50, a vibration generating unit 100, and a control unit 70.
  • FIG. 2 shows a model configuration of the vibration generating unit 100 and the vibration input unit 130.
  • the vibration input unit 130 receives the vibration force FV generated by the vibration generation unit 100.
  • the vibration input unit 130 is integrally formed of the same material as that of the outer blade case 31.
  • the vibration input unit 130 includes an input unit space 131 and an input unit facing surface 132.
  • the input part space 131 is open toward the main body part 10.
  • the input unit facing surface 132 is in contact with the vibration component 121 of the vibration generating unit 100.
  • the vibration generating unit 100 includes a case 101, a magnetic force generating unit 110, and an output movable unit 120.
  • the vibration generating unit 100 forms a solenoid.
  • the vibration generating unit 100 transmits the vibration force FV to the skin 200 by vibrating the vibration input unit 130 and the outer blade block 30.
  • the vibration force FV indicates the force that the vibration component 121 transmits to the vibration input unit 130 due to the vibration of the vibration component 121 of the output movable unit 120 based on the suction force of the input side iron core 113 of the magnetic force generation unit 110.
  • the vibration generating unit 100 defines the driving direction D.
  • the driving direction D indicates the bidirectional direction of the displacement direction of the vibration component 121.
  • the driving direction D includes a pressing direction DU and a pulling direction DD.
  • the pressing direction DU indicates a direction from the main body unit 10 toward the hair removal unit 20.
  • the pull-in direction DD indicates a direction from the hair removal unit 20 toward the main body unit 10.
  • the magnetic force generator 110 is disposed inside the case 101.
  • the magnetic force generation unit 110 includes a bobbin 111, a coil 112, and an input side iron core 113.
  • the magnetic force generation unit 110 causes the attractive force of the input side iron core 113 to act on the output movable unit 120.
  • the bobbin 111 is made of a resin material.
  • the bobbin 111 is coupled to the case 101.
  • the coil 112 is wound around the bobbin 111.
  • a current flows through the coil 112 based on the control of the control unit 70.
  • the input side iron core 113 is made of a magnetic material.
  • the input side iron core 113 is coupled to the case 101.
  • the output movable unit 120 is disposed inside the case 101.
  • the output movable unit 120 includes a vibration part 121, an output side iron core 125, and a load input part 126.
  • the output movable unit 120 reciprocates in the driving direction D based on the suction force of the input side iron core 113.
  • the vibration component 121 is made of a resin material.
  • the vibration component 121 includes a coupling part 122 and a contact part 123.
  • the vibration component 121 has a structure in which the coupling portion 122 and the contact portion 123 are integrally formed of the same material.
  • a part of the coupling part 122 and the contact part 123 are arranged in the input part space 131 of the vibration input part 130.
  • the contact portion 123 has a contact portion facing surface 124 that contacts the input portion facing surface 132.
  • the output iron core 125 is made of a magnetic material.
  • the output side iron core 125 is coupled to the coupling portion 122 of the vibration component 121.
  • the output side iron core 125 moves integrally with the vibration component 121 by the suction force of the input side iron core 113.
  • the load input component 126 has a form of a coil spring as an example.
  • the load input component 126 supplies a force acting in the pressing direction DU to the vibration component 121.
  • the load input component 126 is compressed and deformed when a force in the pull-in direction DD acts on the vibration component 121.
  • the input side iron core 113 and the output side iron core 125 are opposed to each other in the driving direction D via a gap (hereinafter, “internal gap 102”).
  • the size of the internal gap 102 (hereinafter, “internal gap distance LA”) varies depending on at least one of the skin reaction force FR acting on the outer blade block 30 and the energized state of the coil 112.
  • the internal gap distance LA can be defined as the distance between the facing surface of the input-side iron core 113 and the facing surface of the output-side iron core 125.
  • the skin reaction force FR acting on the outer blade block 30 corresponds to one of the main components of the load acting on the hair removal unit 20.
  • the contact portion facing surface 124 and the input portion facing surface 132 are opposed to each other in the driving direction D via a gap (hereinafter, “external gap 103”).
  • the size of the external gap 103 (hereinafter, “external gap distance LB”) varies depending on at least one of the skin reaction force FR acting on the outer blade block 30 and the energized state of the coil 112.
  • the vibration generating unit 100 has at least two driving states.
  • the two driving states indicate an “energized state” and a “non-energized state”.
  • the energized state indicates a state in which a current is flowing through the coil 112 under the control of the control unit 70.
  • the non-energized state indicates a state where energization of the coil 112 by the control unit 70 is stopped.
  • the vibration generating unit 100 forms the following operation under the control of the control unit 70.
  • the control unit 70 starts energizing the coil 112 at regular intervals.
  • the coil 112 forms a magnetic field when a current flows.
  • the magnetic flux generated from the coil 112 passes through the input side iron core 113.
  • the input-side iron core 113 applies an attractive force to the output-side iron core 125 when magnetic flux passes through.
  • the output side iron core 125 and the vibration component 121 are displaced in the drawing direction DD by the suction force of the input side iron core 113.
  • the vibration component 121 increases the amount of deformation in the compression direction of the load input component 126 (hereinafter referred to as “compression deformation amount V”) by being displaced in the pull-in direction DD.
  • compression deformation amount V in the energized state is larger than the compression deformation amount V in the non-energized state.
  • the suction displacement amount W of the vibration component 121 and the output side iron core 125 changes according to the length of the internal gap distance LA in the non-energized state.
  • the suction displacement amount W indicates an amount by which the output side iron core 125 and the vibration component 121 are displaced in the pull-in direction DD based on the suction force of the input side iron core 113.
  • the attractive force of the input side iron core 113 acting on the output side iron core 125 increases as the internal gap distance LA in the non-energized state becomes shorter. For this reason, the suction displacement amount W increases as the internal gap distance LA in the non-energized state becomes shorter.
  • the internal gap distance LA and the external gap distance LB change when the vibration component 121 is displaced in the pull-in direction DD. That is, the internal gap distance LA and the external gap distance LB change when the driving state of the vibration generating unit 100 changes from the non-energized state to the energized state.
  • the internal gap distance LA is shortened with a change from the non-energized state to the energized state.
  • the external gap distance LB increases with a change from the non-energized state to the energized state.
  • the difference between the internal gap distance LA in the energized state and the internal gap distance LA in the non-energized state corresponds to the suction displacement amount W.
  • the difference between the external gap distance LB in the energized state and the external gap distance LB in the non-energized state corresponds to the suction displacement amount W.
  • the control unit 70 stops energization of the coil 112 after a predetermined time has elapsed after starting energization of the coil 112.
  • the coil 112 does not form a magnetic field due to no current flowing.
  • the input side iron core 113 does not apply an attractive force to the output side iron core 125 when the coil 112 does not form a magnetic field.
  • the output side iron core 125 and the vibration component 121 are displaced in the pressing direction DU by the restoring force of the load input component 126 when the drive state of the vibration generating unit 100 changes from the energized state to the non-energized state.
  • the amount of compressive deformation V of the load input component 126 becomes smaller than the amount of compressive deformation V in the energized state when the output side iron core 125 and the vibration component 121 are displaced in the pressing direction DU.
  • the internal gap distance LA and the external gap distance LB change when the vibration component 121 is displaced in the pressing direction DU. That is, the internal gap distance LA and the external gap distance LB change when the driving state of the vibration generating unit 100 changes from the energized state to the non-energized state.
  • the internal gap distance LA increases with a change from the energized state to the non-energized state.
  • the external gap distance LB is shortened with a change from the energized state to the non-energized state.
  • the vibration component 121 and the output side iron core 125 vibrate with respect to the magnetic force generation unit 110 and the vibration input unit 130 by alternately forming an energized state and a non-energized state.
  • the vibration component 121 changes the transmission form of vibration to the vibration input unit 130 according to the relationship with the vibration input unit 130 in a non-energized state.
  • FIG. 3 shows a state in which the vibration component 121 and the vibration input unit 130 are in contact with each other.
  • the vibration component 121 does not transmit vibration to the vibration input unit 130 when not in contact with the vibration input unit 130 in a non-energized state. That is, the vibration component 121 does not transmit vibration to the vibration input unit 130 when the external gap distance LB in the non-energized state is greater than “0”. For this reason, the vibration generating unit 100 does not supply the vibration force FV to the outer blade block 30.
  • the vibration component 121 transmits vibration to the vibration input unit 130 when in contact with the vibration input unit 130 in a non-energized state. That is, the vibration component 121 transmits vibration to the vibration input unit 130 when the external gap distance LB in the non-energized state is “0”.
  • the vibration component 121 supplies vibration force FV to the vibration input unit 130 and the outer blade block 30 by transmitting vibration to the vibration input unit 130.
  • the external gap distance LB in the non-energized state changes according to the position of the vibration input unit 130 in the drive direction D with respect to the vibration component 121.
  • the vibration input unit 130 is displaced integrally with the outer blade block 30.
  • the external gap distance LB in the non-energized state changes in accordance with the position in the driving direction D of the outer cutter block 30 relative to the main body 10 (hereinafter, “outer cutter position C”).
  • the outer blade block 30 is displaced in the pull-in direction DD according to the skin reaction force FR. For this reason, the outer blade position C changes according to the skin reaction force FR.
  • the skin reaction force FR changes according to the pressing force FF.
  • the outer cutter position C changes according to the pressing force FF.
  • the outer cutter position C changes in the range from the maximum separation position CU to the maximum approach position CD.
  • the outer cutter position C has a component contact position CM between the maximum separation position CU and the maximum approach position CD.
  • the maximum separation position CU indicates a position where the outer blade block 30 is most separated from the main body 10 in the driving direction D.
  • the maximum approach position CD indicates a position where the outer blade block 30 is closest to the main body 10 in the driving direction D.
  • the component contact position CM indicates a position where the vibration input unit 130 starts to contact the vibration component 121 in accordance with the displacement of the outer blade block 30 in the retracting direction DD.
  • outer blade block 30 When the skin reaction force FR is not acting on the outer blade block 30, the outer blade block 30 is located at the maximum separation position CU. When the skin reaction force FR is acting on the outer blade block 30, the outer blade block 30 is displaced to the limit with respect to the main body portion 10 in the retracting direction DD and is positioned at the maximum approach position CD.
  • the outer blade position C corresponds to a displacement amount of the outer blade block 30 in the drawing direction DD with respect to the main body portion 10 (hereinafter, “outer blade displacement amount XB”).
  • the outer cutter displacement amount XB is the minimum displacement amount XBL.
  • the outer cutter displacement amount XB changes according to the outer cutter position C.
  • the outer cutter displacement amount XB is the reference displacement amount XBM.
  • the outer cutter displacement amount XB changes according to the outer cutter position C.
  • the outer cutter displacement amount XB is the maximum displacement amount XBH.
  • the external gap distance LB in the non-energized state is the longest in the change range of the external gap distance LB. That is, when the outer blade displacement amount XB is the minimum displacement amount XBL, the external gap distance LB in the non-energized state is the longest in the change range of the external gap distance LB.
  • the external gap distance LB in the non-energized state becomes shorter as the outer blade position C approaches the component contact position CM. That is, when the outer blade displacement amount XB is included in the range between the minimum displacement amount XBL and the reference displacement amount XBM, the external gap distance LB in the non-energized state becomes shorter as the outer blade displacement amount XB increases.
  • the external gap distance LB in the non-energized state is “0”. That is, when the outer blade displacement amount XB is the reference displacement amount XBM, the external gap distance LB in the non-energized state is “0”.
  • the external gap distance LB in the non-energized state is “0”. That is, when the outer blade displacement amount XB is included in the range from the reference displacement amount XBM to the maximum displacement amount XBH, the external gap distance LB in the non-energized state is “0”.
  • the outer cutter block 30 pulls the vibrating component 121 into the magnetic force generator 110 as the outer cutter displacement amount XB increases. Displace in the direction DD.
  • the outer blade block 30 changes the reference part position PX of the vibration part 121 by displacing the vibration part 121 in the pull-in direction DD.
  • the reference component position PX indicates the position of the vibration component 121 with respect to the magnetic force generation unit 110 in a non-energized state.
  • the reference component position PX changes in the range from the minimum suction position PXU to the maximum suction position PXD according to the change in the outer blade position C.
  • the reference part position PX is at the minimum suction position PXU. That is, when the outer blade displacement amount XB is the minimum displacement amount XBL, the reference component position PX is at the minimum suction position PXU.
  • the reference component position PX When the outer blade position C is included in the range between the maximum separation position CU and the component contact position CM, the reference component position PX is at the minimum suction position PXU without reacting to the change in the outer blade position C. That is, when the outer blade displacement amount XB is included in the range between the minimum displacement amount XBL and the reference displacement amount XBM, the reference component position PX does not react to the change in the outer blade displacement amount XB and is set to the minimum suction position PXU. is there.
  • the reference component position PX approaches the maximum suction position PXD as the outer cutter position C approaches the maximum approach position CD. That is, when the outer blade displacement amount XB is included in the range from the reference displacement amount XBM to the maximum displacement amount XBH, the reference part position PX approaches the maximum suction position PXD as the outer blade displacement amount XB approaches the maximum displacement amount XBH. .
  • the reference part position PX is the maximum suction position PXD. That is, when the outer blade displacement amount XB is the maximum displacement amount XBH, the reference component position PX is at the maximum suction position PXD.
  • the internal gap distance LA in the non-energized state changes according to the reference part position PX.
  • the suction displacement amount W changes according to the internal gap distance LA in the non-energized state. Therefore, the suction displacement amount W changes according to the reference part position PX.
  • the internal gap distance LA in the non-energized state is the longest within the change range corresponding to the reference part position PX. For this reason, when the reference part position PX is at the minimum suction position PXU, the suction displacement amount W is the smallest within the change range corresponding to the reference part position PX.
  • the internal gap distance LA in the non-energized state becomes shorter as the reference part position PX approaches the maximum suction position PXD from the minimum suction position PXU. For this reason, the suction displacement amount W increases as the reference part position PX approaches the maximum suction position PXD from the minimum suction position PXU.
  • the internal gap distance LA in the non-energized state is the shortest within the change range corresponding to the reference part position PX. For this reason, when the reference part position PX is at the maximum suction position PXD, the suction displacement amount W is the largest within the change range corresponding to the reference part position PX.
  • the suction displacement amount W varies as follows according to the outer cutter position C.
  • the suction displacement amount W does not react to a change in the outer blade position C when the outer blade position C is included in a range closer to the maximum separation position CU than the component contact position CM.
  • the suction displacement amount W increases as the outer cutter position C approaches the maximum approach position CD.
  • the vibration component 121 transmits vibration to the vibration input unit 130 as follows.
  • the vibration component 121 is in contact with the vibration input unit 130 when the driving state of the vibration generating unit 100 is a non-energized state. Yes.
  • the vibrating component 121 When the driving state of the vibration generating unit 100 changes from the non-energized state to the energized state, the vibrating component 121 is displaced in the pull-in direction DD.
  • the contact part 123 is separated from the vibration input part 130 according to the displacement of the vibration part 121.
  • the internal gap distance LA is shortened according to the displacement of the vibration component 121.
  • the external gap distance LB becomes longer according to the displacement of the vibration component 121.
  • the vibrating component 121 is displaced in the pressing direction DU.
  • the internal gap distance LA becomes longer according to the displacement of the vibration component 121.
  • the external gap distance LB is shortened according to the displacement of the vibration component 121.
  • the contact part 123 collides with the vibration input part 130 according to the displacement of the vibration part 121.
  • the vibration component 121 transmits an impact load as the vibration force FV to the vibration input unit 130.
  • the outer blade block 30 transmits the impact load transmitted to the vibration input unit 130 to the skin 200. That is, the outer blade block 30 transmits the resultant force of the pressing force FF and the vibration force FV to the skin 200.
  • the electric razor 1 has the following actions.
  • the outer cutter position C changes according to the skin reaction force FR.
  • the outer cutter position C approaches the maximum approach position CD as the skin reaction force FR increases.
  • the outer blade position C reaches the component contact position CM when the skin reaction force FR is the reference skin reaction force FRX.
  • the pressing force FF is the reference pressing force FFX.
  • the outer blade position C is the component contact position CM.
  • the outer blade block 30 brings the vibration input unit 130 into contact with the vibration component 121.
  • the vibration component 121 starts to transmit vibration to the vibration input unit 130 and the outer blade block 30.
  • the skin introduction amount S is included in the appropriate range and has a certain margin with respect to the upper limit of the appropriate range.
  • the skin introduction amount S has a small margin with respect to the upper limit of the appropriate range.
  • the timing at which the vibration component 121 begins to transmit vibration to the vibration input unit 130 and the outer blade block 30 is such that the skin introduction amount S exceeds the appropriate range from the state where the risk that the skin introduction amount S exceeds the appropriate range is low. This corresponds to the timing when the state changes to a high state. For this reason, the user can recognize that the skin introduction amount S is likely to exceed the appropriate range based on the fact that the outer blade block 30 starts to vibrate in the driving direction D. That is, the electric razor 1 can notify the user of the level of the skin introduction amount S by vibrating the outer blade block 30 in the driving direction D.
  • the inventor of the present application conducted a test for confirming a change in the relationship between the outer blade block 30 and the skin 200 with changes in the pressing force FF and the vibration force FV.
  • the inventor of the present application has obtained the following knowledge from the results of this test.
  • the pressing force FF has a magnitude less than the reference pressing force FFX
  • the vibration force FV increases
  • the adhesion between the outer blade block 30 and the skin 200 is enhanced. For this reason, the amount of hair shaved by the hair removal unit 20 is likely to increase.
  • the vibration force FV of the vibration generating unit 100 is not supplied to the outer blade block 30 or a relatively small vibration force FV is supplied,
  • the blade block 30 is highly likely to introduce skin 200 in an amount exceeding the appropriate range.
  • the outer blade block 30 is intermittent from the skin 200. Therefore, it becomes easy to displace in the separation direction. For this reason, the skin introduction amount S tends to decrease.
  • the displacement of the outer blade block 30 in the separation direction based on the vibration force FV indicates a displacement having a vector in a direction opposite to the direction in which the outer blade block 30 is pressed against the skin 200 or a vector in a direction close to the opposite direction.
  • the outer blade block 30 When a space is formed between the outer blade block 30 and the skin 200 by the displacement of the outer blade block 30 in the separation direction based on the vibration force FV, and a space is formed between the outer blade block 30 and the skin 200. May not. Due to the displacement of the outer blade block 30 in the separation direction based on the vibration force FV, the outer blade block 30 does not introduce the skin 200, or the skin introduction amount S is less than before the displacement in the separation direction. Form. Regardless of whether or not a space is formed between the outer blade block 30 and the skin 200, the outer blade block 30 based on the vibration force FV is displaced by the displacement of the outer blade block 30 in the separation direction based on the vibration force FV. Compared to the case where no displacement in the separating direction is formed, the skin introduction amount S of the outer blade block 30 is reduced.
  • the outer blade block 30 has a skin displacement due to displacement in the separation direction even if a larger amount of skin 200 than the appropriate range is introduced.
  • the introduction amount S is decreased.
  • skin 200 becomes difficult to be damaged. That is, the vibration force FV of the vibration generating unit 100 is intermittently separated from the skin 200 when the pressing force FF having a magnitude greater than or equal to the reference pressing force FFX is acting on the skin 200.
  • the skin introduction amount S is decreased by displacing the skin.
  • the reason why the outer blade block 30 is displaced in the separation direction based on the vibration force FV is considered as follows. As the force applied to the skin 200 from the outside increases, the dent deformation amount of the skin 200 increases. In the skin 200, the deformation based on the pressing force FF is less likely to occur as the dent deformation amount increases. When the pressing force FF has a magnitude equal to or larger than the reference pressing force FFX, the skin 200 forms a state where there is no deformed portion or a state where the deformed portion is sufficiently small.
  • the outer blade block 30 when receiving the vibration force FV from the outer blade block 30, the skin 200 does not cause dent deformation based on the vibration force FV, or The dent deformation amount based on the vibration force FV forms a minute state. For this reason, the outer blade block 30 receives a shocking and large reaction force from the skin 200 as the vibration force FV is transmitted to the skin 200. For this reason, it is considered that the outer blade block 30 is intermittently displaced in the separation direction based on the vibration force FV.
  • the vibration generating unit 100 has a structure in which the vibration of the outer blade block 30 increases as the pressing force FF increases in consideration of the above matters. For this reason, the vibration generating unit 100 easily displaces the outer blade block 30 in the separating direction with respect to the skin 200 as the pressing force FF increases. For this reason, the skin introduction amount S tends to decrease. The vibration of the outer blade block 30 increases as the pressing force FF increases for the following reason.
  • the skin reaction force FR increases as the pressing force FF increases.
  • the outer cutter position C changes in the retracting direction DD as the skin reaction force FR increases.
  • the reference part position PX approaches the maximum suction position PXD as the skin reaction force FR increases.
  • the internal gap distance LA becomes shorter as the reference part position PX approaches the maximum suction position PXD.
  • the suction force of the input side iron core 113 increases as the internal gap distance LA decreases.
  • the amount of compressive deformation V of the load input component 126 increases as the suction force of the input side iron core 113 increases.
  • the vibration force FV of the vibration generating unit 100 increases as the compression deformation amount V increases. For this reason, the vibration force FV of the vibration generating unit 100 increases as the skin reaction force FR increases. For this reason, the vibration of the outer blade block 30 increases as the skin reaction force FR increases. For this reason, the vibration of the outer blade block 30 increases as the skin reaction force FR increases. For this reason, the vibration of the outer blade block 30
  • the electric razor 1 has the following effects.
  • the electric razor 1 has a vibration generating unit 100.
  • the vibration generating unit 100 transmits the vibration force FV to the outer blade block 30 via the vibration input unit 130. For this reason, the outer blade block 30 is displaced in the separation direction intermittently with respect to the skin 200 when the pressing force FF is large. For this reason, damage to the skin 200 is less likely to occur. That is, the electric razor 1 contributes to making the skin 200 less likely to be damaged.
  • the vibration generating unit 100 displaces the outer blade block 30 in the separating direction with respect to the skin 200. For this reason, the frictional force between the outer blade block 30 and the skin 200 is reduced. For this reason, the force of the outer blade block 30 that moves relative to the skin 200 for hair removal is reduced. For this reason, the user can make small the force which moves the electric razor 1 with respect to the skin 200 for hair removal.
  • the vibration generating unit 100 starts to transmit vibration to the vibration input unit 130. For this reason, the outer blade block 30 can notify the user that the skin introduction amount S is likely to exceed the appropriate range by vibration.
  • the electric razor 1 has an advantage over the comparative electric razor.
  • the comparative electric razor is different from the electric razor 1 in the following points, and indicates a virtual electric razor having the same configuration as the electric razor 1 in other points.
  • the vibration component and the vibration input portion are in contact with each other.
  • the output side iron core is disposed on the side opposite to the outer blade block with respect to the input side iron core.
  • the output side iron core of the comparative electric razor is separated from the input side iron core as the outer blade block changes in the retracting direction DD.
  • the internal clearance distance LA of the comparative electric razor becomes longer as the skin reaction force FR increases.
  • the suction force of the input side iron core of the comparative electric razor decreases as the skin reaction force FR increases.
  • the vibration force FV of the comparative electric razor decreases as the skin reaction force FR increases.
  • the vibration of the outer cutter block of the comparative electric razor decreases as the pressing force FF increases. That is, the vibration generating portion of the comparative electric razor approaches a state where it does not substantially function as the pressing force FF increases.
  • the vibration generating unit 100 of the electric razor 1 the internal gap distance LA becomes shorter as the pressing force FF becomes larger. Therefore, the ability of the vibration generating unit 100 to vibrate the outer blade block 30 increases as the pressing force FF increases. For this reason, the vibration generating unit 100 contributes to enhancing the effect of making the skin 200 less likely to be damaged.
  • FIG. 4 shows one form of the electric shaver 1 of the second embodiment.
  • the electric shaver 1 of the second embodiment has a plurality of components.
  • the plurality of components of the second embodiment have the same or similar structure and function as the components of the electric shaver 1 of the first embodiment.
  • the description of the electric shaver 1 of the second embodiment is the configuration of the first embodiment with respect to at least a part of the components of the second embodiment having the same or similar structure and function as the components of the first embodiment.
  • the same reference numerals are used for the elements.
  • the electric shaver 1 of the second embodiment is mainly different from the electric shaver 1 of the first embodiment in the following points.
  • the electric razor 1 of the first embodiment does not have a mechanism for adjusting the external gap distance LB when the outer blade block 30 is not pressed against the skin 200.
  • the electric razor 1 according to the second embodiment includes a gap adjusting unit 140 for adjusting the external gap distance LB when the outer blade block 30 is not pressed against the skin 200.
  • the gap adjustment unit 140 is configured by a set of a plurality of components.
  • the plurality of components of the gap adjustment unit 140 include a position restriction mechanism 141, an operation component 142, and two springs 143.
  • the two springs 143 are disposed between the main body 10 and the outer blade case 31.
  • the two springs 143 are disposed at symmetrical positions with respect to the center line of the electric razor 1 in the width direction.
  • the spring 143 is compressed and deformed when the outer blade block 30 is displaced in the retracting direction DD.
  • the operation component 142 is formed on the case of the main body 10. When the external force is supplied to the operation component 142, the operation component 142 is displaced with respect to the main body 10.
  • the operation component 142 is connected to the position restriction mechanism 141 via a link mechanism (not shown).
  • the operation component 142 operates the position restriction mechanism 141 in accordance with a change in the operation position of the operation component 142.
  • the operation position of the operation component 142 changes continuously or stepwise in the range from the maximum separation setting position to the maximum approach setting position.
  • the operation position of the operation component 142 has a reference setting position between the maximum separation setting position and the maximum approach setting position.
  • the position regulating mechanism 141 changes the limit position (hereinafter, “separation limit position CX”) at which the outer blade block 30 can be displaced in the pressing direction DU with respect to the main body 10 to change the operation position of the operation component 142. Change accordingly.
  • the position restricting mechanism 141 does not restrict the displacement of the outer blade block 30 in the retracting direction DD.
  • the outer blade block 30 is located at the separation limit position CX in a state where the skin reaction force FR is not acting.
  • the position regulation mechanism 141 sets the separation limit position CX to the maximum separation position CU.
  • the position restriction mechanism 141 sets the separation limit position CX to the component contact position CM.
  • the position restriction mechanism 141 sets the separation limit position CX to the maximum approach position CD.
  • the external gap distance LB in the non-energized state is the longest in the change range based on the operation position of the operation component 142.
  • the separation limit position CX is included in the range between the maximum separation position CU and the component contact position CM
  • the external gap distance LB in the non-energized state becomes shorter as the separation limit position CX approaches the component contact position CM.
  • the separation limit position CX is at the component contact position CM
  • the external gap distance LB in the non-energized state is “0”.
  • the external gap distance LB in the non-energized state is “0”.
  • the external gap distance LB in the non-energized state is “0”.
  • the vibration generating unit 100 transmits vibration to the vibration input unit 130 when the pressing force FF changes from less than the reference pressing force FFX to a magnitude equal to or larger than the reference pressing force FFX. Start to do. That is, the vibration generating unit 100 forms the same operation as the vibration generating unit 100 of the first embodiment.
  • the vibration generating unit 100 When the separation limit position CX is between the maximum separation position CU and the component contact position CM, when the pressing force FF changes from less than the predetermined pressing force FFW to a magnitude equal to or larger than the predetermined pressing force FFW, the vibration generating unit 100 The vibration starts to be transmitted to the vibration input unit 130.
  • the predetermined pressing force FFW is larger than “0” and smaller than the reference pressing force FFX.
  • the predetermined pressing force FFW decreases as the separation limit position CX approaches the component contact position CM.
  • the vibration generating unit 100 causes the vibration input unit 130 to vibrate when the pressing force FF changes to a value larger than “0”. Begin to communicate.
  • the electric razor 1 of the second embodiment has the effect (1) produced by the electric razor 1 of the first embodiment, that is, the effect of contributing to making the skin 200 difficult to damage, and (2) to (5) ).
  • the electric shaver 1 of the second embodiment further has the following effects.
  • the electric razor 1 has a gap adjustment unit 140.
  • the gap adjustment unit 140 adjusts the size of the external gap distance LB according to the operation position of the operation component 142. For this reason, the user can adjust the magnitude of the pressing force FF when the vibration generating unit 100 starts to transmit vibration to the outer blade block 30.
  • FIG. 1 shows an embodiment of an electric shaver 1 according to the third embodiment.
  • the electric shaver 1 of the third embodiment has a plurality of components.
  • the plurality of components of the third embodiment have the same or similar structures and functions as the components of the electric shaver 1 of the third embodiment.
  • Description of the electric shaver 1 of 3rd Embodiment abbreviate
  • the description of the electric shaver 1 of the third embodiment is the same as the configuration of the third embodiment with respect to at least a part of the components of the third embodiment having the same or similar structure and function as the components of the first embodiment.
  • the same reference numerals are used for the elements.
  • the electric razor 1 of the third embodiment is mainly different from the electric razor 1 of the first embodiment in the following points.
  • the electric shaver 1 according to the first embodiment drives the vibration generating unit 100 when the power switch 60 is turned on.
  • the electric razor 1 of 3rd Embodiment detects the skin reaction force FR, and drives the vibration generation part 100 based on a detection result.
  • the electric shaver 1 of the third embodiment has the following detailed configuration.
  • the electric razor 1 has a load detection unit (not shown).
  • the load detection unit generates a detection signal that changes according to the displacement of the outer blade block 30, the pressure of the outer blade block 30, or the strain of the outer blade block 30.
  • the control unit 70 compares the detection signal of the load detection unit with the reference signal, and controls the vibration generation unit 100 based on the comparison result.
  • the control unit 70 starts energization of the coil 112 when the relationship between the detection signal of the load detection unit and the reference signal indicates that the skin reaction force FR is greater than or equal to the reference skin reaction force FRX.
  • the control unit 70 causes a constant current to flow through the coil 112.
  • the control unit 70 stops energization of the coil 112 when the relationship between the detection signal of the load detection unit and the reference signal indicates that the skin reaction force FR has a magnitude less than the reference skin reaction force FRX.
  • the electric razor 1 of the third embodiment has the effect (1) produced by the electric razor 1 of the first embodiment, that is, the effect that it contributes to making the skin 200 difficult to be damaged, and (2) to ( The effect 5) is produced.
  • the electric razor includes other embodiments different from the first to third embodiments.
  • Other embodiments have, as an example, forms of modifications of the first to third embodiments shown below. Note that the following modifications can be combined with each other within a technically consistent range.
  • the input side iron core 113 is fixed to the case 101.
  • the configuration of the vibration generating unit 100 is not limited to the content exemplified in the first embodiment.
  • the vibration generating unit 100 according to the modified example has a structure in which the input side iron core 113 can be displaced with respect to the case 101. Note that the same deformation is also established in the vibration generating unit 100 of the second embodiment and the third embodiment.
  • the vibration generating unit 100 according to the first embodiment has a vibration component 121 formed of a resin material.
  • the material of the vibration component 121 is not limited to the content exemplified in the first embodiment.
  • the vibration generating unit 100 according to the modification includes a vibration component 121 formed of a metal material. Note that the same deformation is also established in the vibration generating unit 100 of the second embodiment and the third embodiment.
  • the vibration component 121 has a structure in which the coupling portion 122 and the contact portion 123 are integrally formed of the same material.
  • the structure of the vibration component 121 is not limited to the content exemplified in the first embodiment.
  • the deformable vibration component 121 has a structure in which a coupling portion 122 and a contact portion 123 formed as individual components are coupled to each other.
  • the material of the coupling portion 122 and the contact portion 123 can be made different from each other. Note that the same deformation is also established in the vibration component 121 of the second embodiment and the third embodiment.
  • the vibration input unit 130 of the first embodiment is integrally formed of the same material as the outer blade case 31.
  • the configuration of the vibration input unit 130 is not limited to the content exemplified in the first embodiment.
  • the vibration input unit 130 of the modified example is formed as a part different from the outer cutter case 31 and is coupled to the outer cutter case 31. Note that the same deformation is also established in the vibration input unit 130 of the second embodiment and the third embodiment.
  • the electric razor 1 of the first embodiment forms the external gap 103 between the vibration component 121 and the vibration input unit 130 in a state where the skin reaction force FR is not acting.
  • the vibration input unit 130 contacts the vibration component 121 when the skin reaction force FR is greater than or equal to the reference skin reaction force FRX.
  • the relationship between the vibration component 121 and the vibration input unit 130 is not limited to the content exemplified in the first embodiment.
  • the electric shaver 1 according to the modification has a structure in which the vibration component 121 and the vibration input unit 130 are in contact with each other in a state where the skin reaction force FR is not acting. Note that the same modification is established in the electric shaver 1 of the third embodiment.
  • the electric razor 1 transmits the vibration force FV of the vibration generating unit 100 to the outer blade block 30 by the contact between the vibration input unit 130 and the vibration component 121.
  • the configuration for transmitting the vibration force FV to the outer blade block 30 is not limited to the configuration illustrated in the first embodiment.
  • the vibration input unit 130 is omitted.
  • the vibration generating unit 100 transmits the vibration force FV to the outer blade block 30 by bringing the vibration component 121 into contact with the outer blade case 31.
  • the electric shaver 1 of 1st Embodiment has the outer blade block 30 illustrated by FIG.
  • the configuration of the outer cutter block 30 is not limited to the content exemplified in the first embodiment.
  • the modified electric razor 1 has a modified outer blade block in place of the outer blade block 30.
  • the deformed outer blade block has a function according to the function of the outer blade block 30 and has a configuration different from that of the outer blade block 30. Note that the same modification is established in the electric shaver 1 of the second embodiment and the third embodiment.
  • the electric shaver 1 of 1st Embodiment has the inner blade block 40 illustrated by FIG.
  • the configuration of the inner blade block 40 is not limited to the content exemplified in the first embodiment.
  • the modified electric razor 1 has a modified inner blade block instead of the inner blade block 40.
  • the modified inner blade block has a function according to the function of the inner blade block 40 and has a configuration different from that of the inner blade block 40. Note that the same modification is established in the electric shaver 1 of the second embodiment and the third embodiment.
  • the electric razor 1 of the first embodiment has a magnetic force generator 110 illustrated in FIG.
  • the configuration of the magnetic force generation unit 110 is not limited to the content exemplified in the first embodiment.
  • the electric shaver 1 according to the modified example has a deformed magnetic force generator instead of the magnetic force generator 110.
  • the deformed magnetic force generation unit has a function according to the function of the magnetic force generation unit 110 and has a configuration different from that of the magnetic force generation unit 110. Note that the same modification is established in the electric shaver 1 of the second embodiment and the third embodiment.
  • the electric razor 1 according to the first embodiment has an output movable unit 120 illustrated in FIG.
  • the configuration of the output movable unit 120 is not limited to the content exemplified in the first embodiment.
  • the electric shaver 1 according to the modified example has a modified output movable portion instead of the output movable portion 120.
  • the deformable output movable unit has a function according to the function of the output movable unit 120 and has a configuration different from that of the output movable unit 120. Note that the same modification is established in the electric shaver 1 of the second embodiment and the third embodiment.
  • the electric shaver 1 of 1st Embodiment has the vibration input part 130 illustrated by FIG.
  • the configuration of the vibration input unit 130 is not limited to the content exemplified in the first embodiment.
  • the electric shaver 1 according to the modified example has a modified vibration input unit instead of the vibration input unit 130.
  • the deformation vibration input unit has a function according to the function of the vibration input unit 130 and has a configuration different from that of the vibration input unit 130. Note that the same modification is established in the electric shaver 1 of the second embodiment and the third embodiment.
  • the electric shaver 1 of 2nd Embodiment has the clearance gap adjustment part 140 illustrated by FIG.
  • the configuration of the gap adjustment unit 140 is not limited to the content exemplified in the second embodiment.
  • the electric shaver 1 according to the modified example has a modified gap adjusting unit instead of the gap adjusting unit 140.
  • the deformation gap adjustment unit has a function according to the function of the gap adjustment unit 140 and has a configuration different from that of the gap adjustment unit 140.
  • the control unit 70 of the third embodiment has a constant current when the skin reaction force FR is greater than the reference skin reaction force FRX, which is suggested by the relationship between the detection signal of the load detection unit and the reference signal. Is passed through the coil 112.
  • the control content of the control unit 70 is not limited to the content exemplified in the third embodiment.
  • the control unit 70 according to the modification changes the magnitude of the current flowing through the coil 112 according to the skin reaction force FR.
  • the control unit 70 has the following configuration.
  • the control unit 70 determines that the reaction force FR Compare with force judgment signal.
  • the control unit 70 determines the relationship between the high reaction force larger than the reference skin reaction force FRX and the skin reaction force FR based on the comparison result between the detection signal of the load detection unit and the high reaction force determination signal.
  • the control unit 70 applies a high load current to the coil 112. Shed. When it is suggested by the relationship between the detection signal of the load detection unit and the high reaction force determination signal that the skin reaction force FR is less than the high reaction force, the control unit 70 is smaller than the current at high load. A load current is passed through the coil 112. For this reason, the vibration force FV of the vibration generating unit 100 is greater when the skin reaction force FR is greater than or equal to the high reaction force than when the skin reaction force FR is less than the high reaction force. For this reason, when the skin reaction force FR takes a magnitude greater than or equal to the high reaction force, the outer blade block 30 is easily displaced from the skin 200 in the separation direction.
  • Means for solving the problems include the following [Appendix 1] to [Appendix 4].
  • the items included in [Appendix 1] to [Appendix 4] correspond to the items disclosed in the embodiment.
  • the load detection unit generates a detection signal that changes according to a load supplied to the hair removal unit.
  • the control unit increases the current supplied to the magnetic force generation unit when the detection signal indicates that the load on the hair removal unit is increasing.
  • the electric razor has a main body part, a hair removal part, and a vibration generating part.
  • the body portion supports the hair removal portion.
  • the vibration generating unit includes a magnetic force generating unit and an output movable unit.
  • the magnetic force generator has a coil and an input side iron core, forms a magnetic field with the coil, and causes the attraction force of the input side iron core to act on the output movable part.
  • the output movable part has a vibration component and an output side iron core.
  • the output side iron core is coupled to the vibration component and moves relative to the magnetic force generation unit based on the attractive force of the input side iron core.
  • the vibration component transmits vibration to the hair removal unit based on the movement of the output side iron core.
  • the electric razor has a gap formed between the hair removal part and the vibration component.
  • the gap decreases as the load on the hair removal unit increases.
  • the vibration component does not transmit vibration to the hair removal part when the gap exists, and transmits vibration to the hair removal part when the gap does not exist.

Abstract

An electric razor (1) is provided with a hair removal portion (20), a main unit portion (10) supporting the hair removal portion (20), and a vibration generation unit (100), including a magnetic force generating unit (110) and an output movable portion (120). The magnetic force generating unit (110) includes a coil (112) and an input-side core (113). The magnetic force generating unit (110) forms a magnetic field by way of the coil, and causes suction force of the input-side core (113) to be exerted on the output movable portion (120). The output movable portion (120) includes: an output-side core (125) which moves relative to the magnetic force generating unit (110) on the basis of the suction force of the input-side core (113); and a vibration component (121) which is coupled to the output-side core (125), and which conveys vibration to the hair removal portion (20) on the basis of the relative movement of the output-side core (125). The vibration generation unit (100) is configured so as to cause the output-side core (125) to approach the input-side core (113) as the load of the hair removal portion (20) increases.

Description

電気かみそりElectric razor
　本発明は、電気かみそりに関する。 The present invention relates to an electric razor.
　特許文献１は、従来の電気かみそりの一例を開示している。図５は、特許文献１の電気かみそり９００を示している。電気かみそり９００は、グリップ部９１０、刃ヘッド９２０、ソレノイド９３０、およびロッド９４０を有する。刃ヘッド９２０は、ヘッドハウジング９２１、外刃９２２、およびヘッドベース９２３を有する。ソレノイド９３０は、グリップ部９１０の内部に配置されている。 Patent Document 1 discloses an example of a conventional electric razor. FIG. 5 shows an electric razor 900 of Patent Document 1. The electric razor 900 has a grip portion 910, a blade head 920, a solenoid 930, and a rod 940. The blade head 920 includes a head housing 921, an outer blade 922, and a head base 923. The solenoid 930 is disposed inside the grip portion 910.
　ソレノイド９３０は、フレーム９３１、ボビン９３２、コイル９３３、固定鉄心９３４、および可動鉄心９３５を有する。固定鉄心９３４および可動鉄心９３５は、ギャップ９３６を介して対向している。コイル９３３は、ボビン９３２に巻き付けられている。ロッド９４０は、可動鉄心９３５と結合されている。ロッド９４０の先端部は、ヘッドベース９２３と結合されている。 The solenoid 930 has a frame 931, a bobbin 932, a coil 933, a fixed iron core 934, and a movable iron core 935. The fixed iron core 934 and the movable iron core 935 are opposed to each other with a gap 936 interposed therebetween. The coil 933 is wound around the bobbin 932. The rod 940 is coupled to the movable iron core 935. The tip of the rod 940 is coupled to the head base 923.
　ソレノイド９３０は、コイル９３３の通電および非通電が繰り返されることにより、可動鉄心９３５およびロッド９４０を往復運動させる。ソレノイド９３０は、ロッド９４０を往復運動させることにより、刃ヘッド９２０を振動させる。このため、刃ヘッド９２０を肌に押し付ける力が大きくなる。 The solenoid 930 reciprocates the movable iron core 935 and the rod 940 by repeatedly energizing and de-energizing the coil 933. The solenoid 930 vibrates the blade head 920 by reciprocating the rod 940. For this reason, the force which presses the blade head 920 against skin becomes large.
　可動鉄心９３５は、刃ヘッド９２０の負荷が大きくなるにつれて、固定鉄心９３４から離間する。このため、ギャップ９３６が大きくなる。このため、可動鉄心９３５は、固定鉄心９３４から受ける吸引力が小さくなる。このため、刃ヘッド９２０を肌に押し付ける力が小さくなる。 The movable iron core 935 is separated from the fixed iron core 934 as the load on the blade head 920 increases. For this reason, the gap 936 becomes large. For this reason, the movable iron core 935 receives a small suction force from the fixed iron core 934. For this reason, the force which presses the blade head 920 against skin becomes small.
　電気かみそり９００は、以上のとおり、刃ヘッド９２０の負荷が大きくなるにつれて刃ヘッド９２０の振動力を低下させる構造を有する。この構造は、使用者が刃ヘッド９２０を肌に押し付ける押付力、および、ソレノイド９３０が刃ヘッド９２０に伝達する振動力の合力を一定の大きさに維持することを意図している。 As described above, the electric razor 900 has a structure that reduces the vibration force of the blade head 920 as the load of the blade head 920 increases. This structure is intended to maintain the pressing force by which the user presses the blade head 920 against the skin and the resultant force of the vibration force transmitted from the solenoid 930 to the blade head 920 at a constant magnitude.
特開２００９－２３２８９０号公報JP 2009-232890 A
　本願発明者は、電気かみそり９００が以下の課題を有することを見出した。 The inventors of the present application have found that the electric razor 900 has the following problems.
　電気かみそり９００では、使用者によって生成される押付力が一定値を超えた場合、ソレノイド９３０の振動力が発生しなくなるか、または、ソレノイド９３０の振動力が微小な大きさを有すると考えられる。ソレノイド９３０の振動力は、使用者による押付力が一定値以上の大きさを有する場合、使用者による押付力が増加しても変化しない。すなわち、使用者による押付力およびソレノイド９３０の振動力の合力は、使用者による押付力が一定値以上の大きさを有する場合、実質的に押付力のみに依存して大きくなる。 In the electric razor 900, it is considered that when the pressing force generated by the user exceeds a certain value, the vibration force of the solenoid 930 is not generated or the vibration force of the solenoid 930 has a minute magnitude. The vibration force of the solenoid 930 does not change even if the pressing force by the user increases when the pressing force by the user has a magnitude greater than a certain value. That is, the resultant force of the pressing force by the user and the vibration force of the solenoid 930 increases substantially depending only on the pressing force when the pressing force by the user has a magnitude greater than a certain value.
　一方、刃ヘッド９２０は、使用者による押付力が大きくなるにつれて肌を導入する量を増加させる。このため、電気かみそり９００では、使用者による押付力が一定値以上に増加するとき、刃ヘッド９２０の内部に肌を過剰に導入するおそれがある。肌は、刃ヘッド９２０の内部に過剰に導入されたとき、刃ヘッド９２０の内刃の往復運動により損傷することがある。 On the other hand, the blade head 920 increases the amount of skin to be introduced as the pressing force by the user increases. For this reason, in the electric shaver 900, when the pressing force by the user increases to a certain value or more, there is a possibility that the skin is excessively introduced into the blade head 920. When the skin is excessively introduced into the blade head 920, the skin may be damaged by the reciprocating motion of the inner blade of the blade head 920.
　本発明は、肌を損傷させにくくすることに貢献する電気かみそりを提供することを目的とする。 An object of the present invention is to provide an electric razor that contributes to making it difficult to damage the skin.
　本発明の一側面は、電気かみそりである。電気かみそりは、除毛部と、前記除毛部を支持する本体部と、磁力発生部および出力可動部を含む振動発生部とを備え、前記磁力発生部は、コイルおよび入力側鉄心を含み、前記磁力発生部は、前記コイルにより磁界を形成し、前記入力側鉄心の吸引力を前記出力可動部に作用させ、前記出力可動部は、前記入力側鉄心の吸引力に基づいて前記磁力発生部に対して相対移動する出力側鉄心と、前記出力側鉄心に結合され、前記出力側鉄心の相対移動に基づいて前記除毛部に振動を伝達する振動部品とを含み、前記振動発生部は、前記除毛部の負荷が大きくなるにつれて前記出力側鉄心を前記入力側鉄心に接近させるように構成される。 One aspect of the present invention is an electric razor. The electric razor includes a hair removal part, a main body part that supports the hair removal part, and a vibration generation part including a magnetic force generation part and an output movable part, and the magnetic force generation part includes a coil and an input side iron core, The magnetic force generating unit forms a magnetic field by the coil, and causes the attractive force of the input side iron core to act on the output movable unit, and the output movable unit is configured to generate the magnetic force generating unit based on the attractive force of the input side iron core. An output-side iron core that moves relative to the output-side iron core, and a vibration component that is coupled to the output-side iron core and transmits vibration to the hair removal unit based on the relative movement of the output-side iron core. The output side iron core is configured to approach the input side iron core as the load on the hair removal portion increases.
　上記構成において、振動発生部は、前記除毛部の負荷が大きくなるにつれて除毛部と振動部品との間に形成された前記隙間を小さくするように構成され、前記振動部品は、前記隙間が存在しているとき、前記除毛部に振動を伝達せず、前記隙間が存在していないとき、前記除毛部に振動を伝達することが好ましい。 In the above configuration, the vibration generating unit is configured to reduce the gap formed between the hair removal unit and the vibration component as the load on the hair removal unit increases, and the vibration component includes the gap. It is preferable that vibration is not transmitted to the hair removal part when it exists, and vibration is transmitted to the hair removal part when the gap is not present.
　上記構成において、前記電気かみそりは、位置調整部を備え、前記位置調整部は、前記振動部品に対する前記除毛部の初期位置を変化させるように構成されることが好ましい。 In the above configuration, it is preferable that the electric razor includes a position adjusting unit, and the position adjusting unit is configured to change an initial position of the hair removal unit with respect to the vibrating component.
　本電気かみそりは、肌を損傷させにくくすることに貢献する。 This electric razor contributes to making it hard to damage the skin.
は、第１実施形態の電気かみそりのブロック構成を示す。These show the block configuration of the electric shaver of 1st Embodiment. は、第１実施形態の振動発生部のモデル構成を示す。These show the model structure of the vibration generation part of 1st Embodiment. は、第１実施形態の振動発生部のモデル構成を示す。These show the model structure of the vibration generation part of 1st Embodiment. は、第２実施形態の振動発生部のモデル構成を示す。These show the model structure of the vibration generation part of 2nd Embodiment. は、従来の電気かみそりのモデル構成を示す。These show the model structure of the conventional electric shaver.
　〔ａ〕独立した一形態に従属する一形態の電気かみそりは、次の事項を有する。電気かみそりは、除毛部の負荷が大きくなるにつれて除毛部と振動部品との間に形成された隙間を小さくするように構成される。振動部品は、隙間が存在しているとき、除毛部に振動を伝達せず、隙間が存在していないとき、除毛部に振動を伝達する。 [A] A form of electric shaver subordinate to an independent form has the following matters. The electric razor is configured to reduce a gap formed between the hair removal portion and the vibration component as the load on the hair removal portion increases. The vibration component does not transmit vibration to the hair removal part when a gap exists, and transmits vibration to the hair removal part when no gap exists.
　〔ｂ〕独立した一形態に従属する一形態の電気かみそりは、次の事項を有する。電気かみそりは、位置調整部を有し、位置調整部は、振動部品に対する除毛部の初期位置を変化させるように構成される。 [B] A form of electric shaver subordinate to an independent form has the following matters. The electric razor has a position adjustment unit, and the position adjustment unit is configured to change the initial position of the hair removal unit with respect to the vibration component.
　（第１実施形態）
　図１は、電気かみそり１の一形態を示している。 (First embodiment)
FIG. 1 shows an embodiment of an electric razor 1.
　電気かみそり１は、本体部１０、除毛部２０、内刃駆動部５０、電源スイッチ６０、制御部７０、電源部８０、振動発生部１００、および振動入力部１３０を含む。電気かみそり１の長手方向は、電気かみそり１の正面視における長手方向の双方向を示す。電気かみそり１の幅方向は、電気かみそり１の正面視において長手方向に直交する双方向を示す。電気かみそり１の奥行方向は、電気かみそり１の正面視において長手方向および幅方向に直交する双方向を示す。 The electric razor 1 includes a main body unit 10, a hair removal unit 20, an inner blade drive unit 50, a power switch 60, a control unit 70, a power supply unit 80, a vibration generation unit 100, and a vibration input unit 130. The longitudinal direction of the electric razor 1 indicates both directions in the longitudinal direction when the electric razor 1 is viewed from the front. The width direction of the electric razor 1 indicates a bidirectional direction orthogonal to the longitudinal direction when the electric razor 1 is viewed from the front. The depth direction of the electric razor 1 indicates both directions orthogonal to the longitudinal direction and the width direction in the front view of the electric razor 1.
　本体部１０は、使用者がグリップすることが可能な形状を有する。本体部１０は、除毛部２０を支持している。本体部１０は、内刃駆動部５０、制御部７０、電源部８０、および振動発生部１００の一部を本体部１０の内部に収容している。 The main body 10 has a shape that can be gripped by the user. The main body 10 supports the hair removal unit 20. The main body unit 10 accommodates a part of the inner blade driving unit 50, the control unit 70, the power supply unit 80, and the vibration generating unit 100 inside the main body unit 10.
　除毛部２０は、外刃ブロック３０および内刃ブロック４０を含む。除毛部２０は、電気かみそり１の幅方向において、内刃ブロック４０を外刃ブロック３０に対して往復運動させる。除毛部２０は、内刃ブロック４０の往復運動により、外刃ブロック３０の内部に導入された毛を剃る。 The hair removal unit 20 includes an outer blade block 30 and an inner blade block 40. The hair removal unit 20 reciprocates the inner blade block 40 relative to the outer blade block 30 in the width direction of the electric razor 1. The hair removal unit 20 shave the hair introduced into the outer blade block 30 by the reciprocating motion of the inner blade block 40.
　外刃ブロック３０は、外刃ケース３１、外刃３２、および外刃内部空間３３を含む。外刃ブロック３０は、個別の部品として形成された外刃ケース３１および外刃３２が互いに結合された構造を有する。外刃ブロック３０は、外刃内部空間３３（図２参照）において内刃ブロック４０を収容している。 The outer blade block 30 includes an outer blade case 31, an outer blade 32, and an outer blade inner space 33. The outer blade block 30 has a structure in which an outer blade case 31 and an outer blade 32 formed as individual parts are coupled to each other. The outer blade block 30 accommodates the inner blade block 40 in the outer blade inner space 33 (see FIG. 2).
　外刃ブロック３０は、電気かみそり１が除毛に用いられるとき、使用者の押付力ＦＦにより肌２００に押し付けられる。押付力ＦＦは、外刃ブロック３０が肌２００に押し付けられているとき、使用者が外刃ブロック３０を介して肌２００に作用させている力を示す。外刃ブロック３０は、肌２００に押し付けられているとき、肌２００から反力を受ける。外刃ブロック３０が肌２００から受ける反力（以下、「肌反力ＦＲ」）は、押付力ＦＦに応じて変化する。 The outer blade block 30 is pressed against the skin 200 by the pressing force FF of the user when the electric razor 1 is used for hair removal. The pressing force FF indicates a force applied by the user to the skin 200 via the outer blade block 30 when the outer blade block 30 is pressed against the skin 200. The outer blade block 30 receives a reaction force from the skin 200 when pressed against the skin 200. The reaction force that the outer blade block 30 receives from the skin 200 (hereinafter, “skin reaction force FR”) changes according to the pressing force FF.
　外刃ケース３１は、フローティング構造を介して本体部１０と結合されている。フローティング構造は、本体部１０に対する外刃ケース３１の姿勢を変化させる。外刃ケース３１は、本体部１０に対して幅方向、高さ方向、および奥行方向に変位することができる。外刃ケース３１は、幅方向に平行な軸まわり、および、奥行方向に平行な軸まわりにおいて、本体部１０に対して回転方向に変位することができる。 The outer blade case 31 is coupled to the main body 10 via a floating structure. The floating structure changes the posture of the outer cutter case 31 with respect to the main body 10. The outer cutter case 31 can be displaced in the width direction, the height direction, and the depth direction with respect to the main body 10. The outer cutter case 31 can be displaced in the rotational direction with respect to the main body 10 around an axis parallel to the width direction and an axis parallel to the depth direction.
　外刃３２は、複数の外刃孔を有する（図示略）。外刃３２は、外刃孔を介して外刃内部空間３３に毛を導入する。外刃３２は、押付力ＦＦが大きいとき、外刃孔を介して外刃内部空間３３に肌２００を導入する。外刃内部空間３３に導入される肌２００の量（以下、「肌導入量Ｓ」）は、一例として、外刃孔よりも外刃内部空間３３側に存在する肌２００の体積として規定することができる。 The outer blade 32 has a plurality of outer blade holes (not shown). The outer blade 32 introduces bristles into the outer blade inner space 33 through the outer blade hole. When the pressing force FF is large, the outer blade 32 introduces the skin 200 into the outer blade inner space 33 through the outer blade hole. The amount of skin 200 introduced into the outer blade inner space 33 (hereinafter referred to as “skin introduction amount S”) is defined as the volume of the skin 200 existing on the outer blade inner space 33 side with respect to the outer blade hole as an example. Can do.
　内刃ブロック４０は、継手部品４１および内刃４２を含む。内刃ブロック４０は、個別の部品として形成された継手部品４１および内刃４２が互いに結合された構造を有する。内刃ブロック４０は、外刃ブロック３０と協働して毛を剃る。 The inner blade block 40 includes a joint component 41 and an inner blade 42. The inner blade block 40 has a structure in which a joint part 41 and an inner blade 42 formed as individual parts are coupled to each other. The inner blade block 40 shaves hair in cooperation with the outer blade block 30.
　継手部品４１は、外刃ケース３１に近い部分において、内刃４２と結合している。継手部品４１は、本体部１０に近い部分において、内刃駆動部５０と結合している。継手部品４１は、本体部１０および外刃ブロック３０に対する幅方向への変位が可能な構造を有する。 The joint component 41 is coupled to the inner blade 42 at a portion close to the outer blade case 31. The joint component 41 is coupled to the inner blade drive unit 50 at a portion close to the main body 10. The joint component 41 has a structure capable of displacement in the width direction with respect to the main body 10 and the outer blade block 30.
　内刃駆動部５０は、一例として、リニアアクチュエーターを含む。内刃駆動部５０は、制御部７０から供給されたる駆動信号に基づいて駆動する。内刃駆動部５０は、継手部品４１を電気かみそり１の幅方向において往復運動させる。 The inner blade drive unit 50 includes a linear actuator as an example. The inner blade drive unit 50 is driven based on a drive signal supplied from the control unit 70. The inner blade drive unit 50 reciprocates the joint component 41 in the width direction of the electric razor 1.
　振動発生部１００は、振動入力部１３０を介して外刃ブロック３０に振動力ＦＶを伝達する。振動発生部１００の振動力ＦＶは、外刃ブロック３０の高さ方向に作用する。振動発生部１００は、外刃ブロック３０に振動力ＦＶを供給することにより、肌導入量Ｓが適正範囲よりも多くなることを抑制する。 The vibration generating unit 100 transmits the vibration force FV to the outer blade block 30 via the vibration input unit 130. The vibration force FV of the vibration generating unit 100 acts in the height direction of the outer blade block 30. The vibration generating unit 100 suppresses the skin introduction amount S from being larger than the appropriate range by supplying the vibration force FV to the outer blade block 30.
　電源スイッチ６０は、本体部１０のケース上に形成されている。電源スイッチ６０は、ヒューマンマシンインターフェースの形態を有する。電源スイッチ６０は、電気かみそり１の電源をオンおよびオフするために操作される。電源スイッチ６０は、押し込み操作される毎に操作信号を制御部７０に供給する。 The power switch 60 is formed on the case of the main body 10. The power switch 60 has the form of a human machine interface. The power switch 60 is operated to turn on and off the power of the electric shaver 1. The power switch 60 supplies an operation signal to the control unit 70 every time it is pushed.
　制御部７０は、少なくとも内刃駆動部５０および振動発生部１００を制御する。制御部７０は、電源スイッチ６０がオンされたとき、内刃駆動部５０および振動発生部１００の駆動を開始する。制御部７０は、本体部１０の電源スイッチ６０がオフされたとき、内刃駆動部５０および振動発生部１００の駆動を停止する。 The control unit 70 controls at least the inner blade driving unit 50 and the vibration generating unit 100. The control unit 70 starts driving the inner blade driving unit 50 and the vibration generating unit 100 when the power switch 60 is turned on. The control unit 70 stops driving the inner blade driving unit 50 and the vibration generating unit 100 when the power switch 60 of the main body unit 10 is turned off.
　電源部８０は、本体部１０の内部に配置されている。電源部８０は、一例として、１次電池または２次電池の電力を電気かみそり１の電力ブロックに供給する。電気かみそり１の電力ブロックは、内刃駆動部５０、振動発生部１００、および制御部７０を含む。 The power supply unit 80 is disposed inside the main body unit 10. For example, the power supply unit 80 supplies the power of the primary battery or the secondary battery to the power block of the electric shaver 1. The power block of the electric razor 1 includes an inner blade driving unit 50, a vibration generating unit 100, and a control unit 70.
　図２は、振動発生部１００および振動入力部１３０のモデル構成を示している。 FIG. 2 shows a model configuration of the vibration generating unit 100 and the vibration input unit 130.
　振動入力部１３０は、振動発生部１００によって生成された振動力ＦＶを受け取る。振動入力部１３０は、外刃ケース３１と同一の材料により一体的に形成されている。振動入力部１３０は、入力部空間１３１および入力部対向面１３２を有する。入力部空間１３１は、本体部１０に向かって開口している。入力部対向面１３２は、振動発生部１００の振動部品１２１と接触する。 The vibration input unit 130 receives the vibration force FV generated by the vibration generation unit 100. The vibration input unit 130 is integrally formed of the same material as that of the outer blade case 31. The vibration input unit 130 includes an input unit space 131 and an input unit facing surface 132. The input part space 131 is open toward the main body part 10. The input unit facing surface 132 is in contact with the vibration component 121 of the vibration generating unit 100.
　振動発生部１００は、ケース１０１、磁力発生部１１０、および出力可動部１２０を含む。振動発生部１００は、ソレノイドを形成している。振動発生部１００は、振動入力部１３０および外刃ブロック３０を振動させることにより、肌２００に振動力ＦＶを伝達する。振動力ＦＶは、磁力発生部１１０の入力側鉄心１１３の吸引力に基づく出力可動部１２０の振動部品１２１の振動により、振動部品１２１が振動入力部１３０に伝達する力を示す。 The vibration generating unit 100 includes a case 101, a magnetic force generating unit 110, and an output movable unit 120. The vibration generating unit 100 forms a solenoid. The vibration generating unit 100 transmits the vibration force FV to the skin 200 by vibrating the vibration input unit 130 and the outer blade block 30. The vibration force FV indicates the force that the vibration component 121 transmits to the vibration input unit 130 due to the vibration of the vibration component 121 of the output movable unit 120 based on the suction force of the input side iron core 113 of the magnetic force generation unit 110.
　振動発生部１００は、駆動方向Ｄを規定する。駆動方向Ｄは、振動部品１２１の変位方向の双方向を示す。駆動方向Ｄは、押付方向ＤＵおよび引込方向ＤＤを含む。押付方向ＤＵは、本体部１０から除毛部２０に向かう方向を示す。引込方向ＤＤは、除毛部２０から本体部１０に向かう方向を示す。 The vibration generating unit 100 defines the driving direction D. The driving direction D indicates the bidirectional direction of the displacement direction of the vibration component 121. The driving direction D includes a pressing direction DU and a pulling direction DD. The pressing direction DU indicates a direction from the main body unit 10 toward the hair removal unit 20. The pull-in direction DD indicates a direction from the hair removal unit 20 toward the main body unit 10.
　磁力発生部１１０は、ケース１０１の内部に配置されている。磁力発生部１１０は、ボビン１１１、コイル１１２、および入力側鉄心１１３を有する。磁力発生部１１０は、入力側鉄心１１３の吸引力を出力可動部１２０に作用させる。 The magnetic force generator 110 is disposed inside the case 101. The magnetic force generation unit 110 includes a bobbin 111, a coil 112, and an input side iron core 113. The magnetic force generation unit 110 causes the attractive force of the input side iron core 113 to act on the output movable unit 120.
　ボビン１１１は、樹脂材料により形成されている。ボビン１１１は、ケース１０１に結合されている。コイル１１２は、ボビン１１１に巻き付けられている。コイル１１２には、制御部７０の制御に基づいて電流が流される。入力側鉄心１１３は、磁性材料により形成されている。入力側鉄心１１３は、ケース１０１に結合されている。 The bobbin 111 is made of a resin material. The bobbin 111 is coupled to the case 101. The coil 112 is wound around the bobbin 111. A current flows through the coil 112 based on the control of the control unit 70. The input side iron core 113 is made of a magnetic material. The input side iron core 113 is coupled to the case 101.
　出力可動部１２０は、ケース１０１の内部に配置されている。出力可動部１２０は、振動部品１２１、出力側鉄心１２５、および荷重入力部品１２６を有する。出力可動部１２０は、入力側鉄心１１３の吸引力に基づいて、駆動方向Ｄにおいて往復運動する。 The output movable unit 120 is disposed inside the case 101. The output movable unit 120 includes a vibration part 121, an output side iron core 125, and a load input part 126. The output movable unit 120 reciprocates in the driving direction D based on the suction force of the input side iron core 113.
　振動部品１２１は、樹脂材料により形成されている。振動部品１２１は、結合部１２２および接触部１２３を有する。振動部品１２１は、結合部１２２および接触部１２３が同一の材料により一体的に形成された構造を有する。結合部１２２の一部および接触部１２３は、振動入力部１３０の入力部空間１３１に配置されている。接触部１２３は、入力部対向面１３２に接触する接触部対向面１２４を有する。 The vibration component 121 is made of a resin material. The vibration component 121 includes a coupling part 122 and a contact part 123. The vibration component 121 has a structure in which the coupling portion 122 and the contact portion 123 are integrally formed of the same material. A part of the coupling part 122 and the contact part 123 are arranged in the input part space 131 of the vibration input part 130. The contact portion 123 has a contact portion facing surface 124 that contacts the input portion facing surface 132.
　出力側鉄心１２５は、磁性材料により形成されている。出力側鉄心１２５は、振動部品１２１の結合部１２２と結合されている。出力側鉄心１２５は、入力側鉄心１１３の吸引力により振動部品１２１と一体的に運動する。 The output iron core 125 is made of a magnetic material. The output side iron core 125 is coupled to the coupling portion 122 of the vibration component 121. The output side iron core 125 moves integrally with the vibration component 121 by the suction force of the input side iron core 113.
　荷重入力部品１２６は、一例として、コイルスプリングの形態を有する。荷重入力部品１２６は、押付方向ＤＵに作用する力を振動部品１２１に供給する。荷重入力部品１２６は、振動部品１２１に引込方向ＤＤの力が作用することにより、圧縮変形する。 The load input component 126 has a form of a coil spring as an example. The load input component 126 supplies a force acting in the pressing direction DU to the vibration component 121. The load input component 126 is compressed and deformed when a force in the pull-in direction DD acts on the vibration component 121.
　入力側鉄心１１３および出力側鉄心１２５は、駆動方向Ｄにおいて隙間（以下、「内部隙間１０２」）を介して対向している。内部隙間１０２の大きさ（以下、「内部隙間距離ＬＡ」）は、外刃ブロック３０に作用する肌反力ＦＲ、および、コイル１１２の通電状態の少なくとも一方に応じて変化する。内部隙間距離ＬＡは、一例として、入力側鉄心１１３の対向面および出力側鉄心１２５の対向面の距離として規定することができる。なお、外刃ブロック３０に作用する肌反力ＦＲは、除毛部２０に作用する負荷の主要な成分の１つに相当する。 The input side iron core 113 and the output side iron core 125 are opposed to each other in the driving direction D via a gap (hereinafter, “internal gap 102”). The size of the internal gap 102 (hereinafter, “internal gap distance LA”) varies depending on at least one of the skin reaction force FR acting on the outer blade block 30 and the energized state of the coil 112. For example, the internal gap distance LA can be defined as the distance between the facing surface of the input-side iron core 113 and the facing surface of the output-side iron core 125. The skin reaction force FR acting on the outer blade block 30 corresponds to one of the main components of the load acting on the hair removal unit 20.
　接触部対向面１２４および入力部対向面１３２は、駆動方向Ｄにおいて隙間（以下、「外部隙間１０３」）を介して対向している。外部隙間１０３の大きさ（以下、「外部隙間距離ＬＢ」）は、外刃ブロック３０に作用する肌反力ＦＲ、および、コイル１１２の通電状態の少なくとも一方に応じて変化する。 The contact portion facing surface 124 and the input portion facing surface 132 are opposed to each other in the driving direction D via a gap (hereinafter, “external gap 103”). The size of the external gap 103 (hereinafter, “external gap distance LB”) varies depending on at least one of the skin reaction force FR acting on the outer blade block 30 and the energized state of the coil 112.
　振動発生部１００は、少なくとも２つの駆動状態を有する。２つの駆動状態は、「通電状態」および「非通電状態」を示す。通電状態は、制御部７０の制御によりコイル１１２に電流が流れている状態を示す。非通電状態は、制御部７０によるコイル１１２への通電が停止されている状態を示す。振動発生部１００は、制御部７０の制御により以下の動作を形成する。 The vibration generating unit 100 has at least two driving states. The two driving states indicate an “energized state” and a “non-energized state”. The energized state indicates a state in which a current is flowing through the coil 112 under the control of the control unit 70. The non-energized state indicates a state where energization of the coil 112 by the control unit 70 is stopped. The vibration generating unit 100 forms the following operation under the control of the control unit 70.
　制御部７０は、一定周期毎にコイル１１２への通電を開始する。コイル１１２は、電流が流れることにより磁界を形成する。コイル１１２から発生した磁束は、入力側鉄心１１３を通過する。入力側鉄心１１３は、磁束が通過しているとき、出力側鉄心１２５に吸引力を作用させる。このため、出力側鉄心１２５および振動部品１２１は、入力側鉄心１１３の吸引力により、引込方向ＤＤに変位する。振動部品１２１は、引込方向ＤＤに変位することにより、荷重入力部品１２６の圧縮方向の変形量（以下、「圧縮変形量Ｖ」）を増加させる。通電状態の圧縮変形量Ｖは、非通電状態の圧縮変形量Ｖよりも大きい。 The control unit 70 starts energizing the coil 112 at regular intervals. The coil 112 forms a magnetic field when a current flows. The magnetic flux generated from the coil 112 passes through the input side iron core 113. The input-side iron core 113 applies an attractive force to the output-side iron core 125 when magnetic flux passes through. For this reason, the output side iron core 125 and the vibration component 121 are displaced in the drawing direction DD by the suction force of the input side iron core 113. The vibration component 121 increases the amount of deformation in the compression direction of the load input component 126 (hereinafter referred to as “compression deformation amount V”) by being displaced in the pull-in direction DD. The compression deformation amount V in the energized state is larger than the compression deformation amount V in the non-energized state.
　振動部品１２１および出力側鉄心１２５の吸引変位量Ｗは、非通電状態の内部隙間距離ＬＡの長さに応じて変化する。吸引変位量Ｗは、入力側鉄心１１３の吸引力に基づいて、出力側鉄心１２５および振動部品１２１が引込方向ＤＤに変位する量を示す。出力側鉄心１２５に作用する入力側鉄心１１３の吸引力は、非通電状態の内部隙間距離ＬＡが短くなるにつれて大きくなる。このため、吸引変位量Ｗは、非通電状態の内部隙間距離ＬＡが短くなるにつれて大きくなる。 The suction displacement amount W of the vibration component 121 and the output side iron core 125 changes according to the length of the internal gap distance LA in the non-energized state. The suction displacement amount W indicates an amount by which the output side iron core 125 and the vibration component 121 are displaced in the pull-in direction DD based on the suction force of the input side iron core 113. The attractive force of the input side iron core 113 acting on the output side iron core 125 increases as the internal gap distance LA in the non-energized state becomes shorter. For this reason, the suction displacement amount W increases as the internal gap distance LA in the non-energized state becomes shorter.
　内部隙間距離ＬＡおよび外部隙間距離ＬＢは、振動部品１２１が引込方向ＤＤに変位することにより変化する。すなわち、内部隙間距離ＬＡおよび外部隙間距離ＬＢは、振動発生部１００の駆動状態が非通電状態から通電状態に変化することにより変化する。内部隙間距離ＬＡは、非通電状態から通電状態への変化にともなって短くなる。外部隙間距離ＬＢは、非通電状態から通電状態への変化にともなって長くなる。 The internal gap distance LA and the external gap distance LB change when the vibration component 121 is displaced in the pull-in direction DD. That is, the internal gap distance LA and the external gap distance LB change when the driving state of the vibration generating unit 100 changes from the non-energized state to the energized state. The internal gap distance LA is shortened with a change from the non-energized state to the energized state. The external gap distance LB increases with a change from the non-energized state to the energized state.
　通電状態の内部隙間距離ＬＡおよび非通電状態の内部隙間距離ＬＡの差は、吸引変位量Ｗに相当する。通電状態の外部隙間距離ＬＢおよび非通電状態の外部隙間距離ＬＢの差は、吸引変位量Ｗに相当する。 The difference between the internal gap distance LA in the energized state and the internal gap distance LA in the non-energized state corresponds to the suction displacement amount W. The difference between the external gap distance LB in the energized state and the external gap distance LB in the non-energized state corresponds to the suction displacement amount W.
　制御部７０は、コイル１１２への通電を開始してから一定時間が経過した後、コイル１１２への通電を停止する。コイル１１２は、電流が流れなくなることにより、磁界を形成しなくなる。入力側鉄心１１３は、コイル１１２が磁界を形成していないとき、出力側鉄心１２５に吸引力を作用させない。このため、出力側鉄心１２５および振動部品１２１は、振動発生部１００の駆動状態が通電状態から非通電状態に変化したとき、荷重入力部品１２６の復元力により押付方向ＤＵに変位する。荷重入力部品１２６の圧縮変形量Ｖは、出力側鉄心１２５および振動部品１２１が押付方向ＤＵに変位することにより、通電状態の圧縮変形量Ｖよりも小さくなる。 The control unit 70 stops energization of the coil 112 after a predetermined time has elapsed after starting energization of the coil 112. The coil 112 does not form a magnetic field due to no current flowing. The input side iron core 113 does not apply an attractive force to the output side iron core 125 when the coil 112 does not form a magnetic field. For this reason, the output side iron core 125 and the vibration component 121 are displaced in the pressing direction DU by the restoring force of the load input component 126 when the drive state of the vibration generating unit 100 changes from the energized state to the non-energized state. The amount of compressive deformation V of the load input component 126 becomes smaller than the amount of compressive deformation V in the energized state when the output side iron core 125 and the vibration component 121 are displaced in the pressing direction DU.
　内部隙間距離ＬＡおよび外部隙間距離ＬＢは、振動部品１２１が押付方向ＤＵに変位することにより変化する。すなわち、内部隙間距離ＬＡおよび外部隙間距離ＬＢは、振動発生部１００の駆動状態が通電状態から非通電状態に変化することにより変化する。内部隙間距離ＬＡは、通電状態から非通電状態への変化にともなって長くなる。外部隙間距離ＬＢは、通電状態から非通電状態への変化にともなって短くなる。 The internal gap distance LA and the external gap distance LB change when the vibration component 121 is displaced in the pressing direction DU. That is, the internal gap distance LA and the external gap distance LB change when the driving state of the vibration generating unit 100 changes from the energized state to the non-energized state. The internal gap distance LA increases with a change from the energized state to the non-energized state. The external gap distance LB is shortened with a change from the energized state to the non-energized state.
　振動部品１２１および出力側鉄心１２５は、通電状態および非通電状態が交互に形成されることにより、磁力発生部１１０および振動入力部１３０に対して振動する。振動部品１２１は、非通電状態における振動入力部１３０との関係に応じて、振動入力部１３０に対する振動の伝達形態を変化させる。 The vibration component 121 and the output side iron core 125 vibrate with respect to the magnetic force generation unit 110 and the vibration input unit 130 by alternately forming an energized state and a non-energized state. The vibration component 121 changes the transmission form of vibration to the vibration input unit 130 according to the relationship with the vibration input unit 130 in a non-energized state.
　図３は、振動部品１２１および振動入力部１３０が互いに接触した状態を示している。 FIG. 3 shows a state in which the vibration component 121 and the vibration input unit 130 are in contact with each other.
　振動部品１２１は、非通電状態において振動入力部１３０と接触していないとき、振動入力部１３０に振動を伝達しない。すなわち、振動部品１２１は、非通電状態の外部隙間距離ＬＢが「０」よりも大きいとき、振動入力部１３０に振動を伝達しない。このため、振動発生部１００は、外刃ブロック３０に振動力ＦＶを供給しない。 The vibration component 121 does not transmit vibration to the vibration input unit 130 when not in contact with the vibration input unit 130 in a non-energized state. That is, the vibration component 121 does not transmit vibration to the vibration input unit 130 when the external gap distance LB in the non-energized state is greater than “0”. For this reason, the vibration generating unit 100 does not supply the vibration force FV to the outer blade block 30.
　振動部品１２１は、非通電状態において振動入力部１３０と接触しているとき、振動入力部１３０に振動を伝達する。すなわち、振動部品１２１は、非通電状態の外部隙間距離ＬＢが「０」であるとき、振動入力部１３０に振動を伝達する。振動部品１２１は、振動入力部１３０に振動を伝達することにより、振動入力部１３０および外刃ブロック３０に振動力ＦＶを供給する。 The vibration component 121 transmits vibration to the vibration input unit 130 when in contact with the vibration input unit 130 in a non-energized state. That is, the vibration component 121 transmits vibration to the vibration input unit 130 when the external gap distance LB in the non-energized state is “0”. The vibration component 121 supplies vibration force FV to the vibration input unit 130 and the outer blade block 30 by transmitting vibration to the vibration input unit 130.
　非通電状態の外部隙間距離ＬＢは、振動部品１２１に対する振動入力部１３０の駆動方向Ｄの位置に応じて変化する。振動入力部１３０は、外刃ブロック３０と一体的に変位する。このため、非通電状態の外部隙間距離ＬＢは、本体部１０に対する外刃ブロック３０の駆動方向Ｄの位置（以下、「外刃位置Ｃ」）に応じて変化する。 The external gap distance LB in the non-energized state changes according to the position of the vibration input unit 130 in the drive direction D with respect to the vibration component 121. The vibration input unit 130 is displaced integrally with the outer blade block 30. For this reason, the external gap distance LB in the non-energized state changes in accordance with the position in the driving direction D of the outer cutter block 30 relative to the main body 10 (hereinafter, “outer cutter position C”).
　外刃ブロック３０は、肌反力ＦＲに応じて引込方向ＤＤに変位する。このため、外刃位置Ｃは、肌反力ＦＲに応じて変化する。肌反力ＦＲは、押付力ＦＦに応じて変化する。このため、外刃位置Ｃは、押付力ＦＦに応じて変化する。外刃位置Ｃは、最大離間位置ＣＵから最大接近位置ＣＤまでの範囲において変化する。外刃位置Ｃは、最大離間位置ＣＵと最大接近位置ＣＤとの間に部品接触位置ＣＭを有する。 The outer blade block 30 is displaced in the pull-in direction DD according to the skin reaction force FR. For this reason, the outer blade position C changes according to the skin reaction force FR. The skin reaction force FR changes according to the pressing force FF. For this reason, the outer cutter position C changes according to the pressing force FF. The outer cutter position C changes in the range from the maximum separation position CU to the maximum approach position CD. The outer cutter position C has a component contact position CM between the maximum separation position CU and the maximum approach position CD.
　最大離間位置ＣＵは、駆動方向Ｄにおいて、外刃ブロック３０が本体部１０から最も離間した位置を示す。最大接近位置ＣＤは、駆動方向Ｄにおいて、外刃ブロック３０が本体部１０に最も接近した位置を示す。部品接触位置ＣＭは、外刃ブロック３０の引込方向ＤＤへの変位にともなって、振動入力部１３０が振動部品１２１に接触しはじめる位置を示す。 The maximum separation position CU indicates a position where the outer blade block 30 is most separated from the main body 10 in the driving direction D. The maximum approach position CD indicates a position where the outer blade block 30 is closest to the main body 10 in the driving direction D. The component contact position CM indicates a position where the vibration input unit 130 starts to contact the vibration component 121 in accordance with the displacement of the outer blade block 30 in the retracting direction DD.
　外刃ブロック３０に肌反力ＦＲが作用していないとき、外刃ブロック３０は最大離間位置ＣＵに位置する。外刃ブロック３０に肌反力ＦＲが作用しているとき、外刃ブロック３０は、本体部１０に対して限界まで引込方向ＤＤに変位して最大接近位置ＣＤに位置する。外刃位置Ｃは、本体部１０に対する外刃ブロック３０の引込方向ＤＤの変位量（以下、「外刃変位量ＸＢ」）に対応する。 When the skin reaction force FR is not acting on the outer blade block 30, the outer blade block 30 is located at the maximum separation position CU. When the skin reaction force FR is acting on the outer blade block 30, the outer blade block 30 is displaced to the limit with respect to the main body portion 10 in the retracting direction DD and is positioned at the maximum approach position CD. The outer blade position C corresponds to a displacement amount of the outer blade block 30 in the drawing direction DD with respect to the main body portion 10 (hereinafter, “outer blade displacement amount XB”).
　外刃位置Ｃが最大離間位置ＣＵにあるとき、外刃変位量ＸＢは最小変位量ＸＢＬである。外刃位置Ｃが最大離間位置ＣＵから部品接触位置ＣＭまでの範囲に含まれるとき、外刃変位量ＸＢは外刃位置Ｃに応じて変化する。外刃位置Ｃが部品接触位置ＣＭであるとき、外刃変位量ＸＢは基準変位量ＸＢＭである。外刃位置Ｃが部品接触位置ＣＭから最大接近位置ＣＤまでの範囲に含まれるとき、外刃変位量ＸＢは外刃位置Ｃに応じて変化する。外刃位置Ｃが最大接近位置ＣＤであるとき、外刃変位量ＸＢは最大変位量ＸＢＨである。 When the outer cutter position C is at the maximum separation position CU, the outer cutter displacement amount XB is the minimum displacement amount XBL. When the outer cutter position C is included in the range from the maximum separation position CU to the component contact position CM, the outer cutter displacement amount XB changes according to the outer cutter position C. When the outer cutter position C is the component contact position CM, the outer cutter displacement amount XB is the reference displacement amount XBM. When the outer cutter position C is included in the range from the component contact position CM to the maximum approach position CD, the outer cutter displacement amount XB changes according to the outer cutter position C. When the outer cutter position C is the maximum approach position CD, the outer cutter displacement amount XB is the maximum displacement amount XBH.
　外刃位置Ｃが最大離間位置ＣＵにあるとき、非通電状態の外部隙間距離ＬＢは、外部隙間距離ＬＢの変化範囲において最も長くなる。すなわち、外刃変位量ＸＢが最小変位量ＸＢＬであるとき、非通電状態の外部隙間距離ＬＢは、外部隙間距離ＬＢの変化範囲において最も長くなる。 When the outer blade position C is at the maximum separation position CU, the external gap distance LB in the non-energized state is the longest in the change range of the external gap distance LB. That is, when the outer blade displacement amount XB is the minimum displacement amount XBL, the external gap distance LB in the non-energized state is the longest in the change range of the external gap distance LB.
　外刃位置Ｃが最大離間位置ＣＵと部品接触位置ＣＭとの間の範囲に含まれるとき、非通電状態の外部隙間距離ＬＢは、外刃位置Ｃが部品接触位置ＣＭに近づくにつれて短くなる。すなわち、外刃変位量ＸＢが最小変位量ＸＢＬと基準変位量ＸＢＭとの間の範囲に含まれるとき、非通電状態の外部隙間距離ＬＢは、外刃変位量ＸＢが大きくなるにつれて短くなる。 When the outer blade position C is included in the range between the maximum separation position CU and the component contact position CM, the external gap distance LB in the non-energized state becomes shorter as the outer blade position C approaches the component contact position CM. That is, when the outer blade displacement amount XB is included in the range between the minimum displacement amount XBL and the reference displacement amount XBM, the external gap distance LB in the non-energized state becomes shorter as the outer blade displacement amount XB increases.
　外刃位置Ｃが部品接触位置ＣＭにあるとき、非通電状態の外部隙間距離ＬＢは「０」である。すなわち、外刃変位量ＸＢが基準変位量ＸＢＭであるとき、非通電状態の外部隙間距離ＬＢは「０」である。 When the outer cutter position C is at the component contact position CM, the external gap distance LB in the non-energized state is “0”. That is, when the outer blade displacement amount XB is the reference displacement amount XBM, the external gap distance LB in the non-energized state is “0”.
　外刃位置Ｃが部品接触位置ＣＭから最大接近位置ＣＤまでの範囲に含まれるとき、非通電状態の外部隙間距離ＬＢは「０」である。すなわち、外刃変位量ＸＢが基準変位量ＸＢＭから最大変位量ＸＢＨまでの範囲に含まれるとき、非通電状態の外部隙間距離ＬＢは「０」である。 When the outer blade position C is included in the range from the component contact position CM to the maximum approach position CD, the external gap distance LB in the non-energized state is “0”. That is, when the outer blade displacement amount XB is included in the range from the reference displacement amount XBM to the maximum displacement amount XBH, the external gap distance LB in the non-energized state is “0”.
　外刃位置Ｃが部品接触位置ＣＭから最大接近位置ＣＤまでの範囲に含まれるとき、外刃ブロック３０は、外刃変位量ＸＢが大きくなるにつれて、振動部品１２１を磁力発生部１１０に対して引込方向ＤＤに変位させる。外刃ブロック３０は、振動部品１２１を引込方向ＤＤに変位させることにより、振動部品１２１の基準部品位置ＰＸを変化させる。 When the outer cutter position C is included in the range from the component contact position CM to the maximum approach position CD, the outer cutter block 30 pulls the vibrating component 121 into the magnetic force generator 110 as the outer cutter displacement amount XB increases. Displace in the direction DD. The outer blade block 30 changes the reference part position PX of the vibration part 121 by displacing the vibration part 121 in the pull-in direction DD.
　基準部品位置ＰＸは、非通電状態における磁力発生部１１０に対する振動部品１２１の位置を示す。基準部品位置ＰＸは、外刃位置Ｃの変化に応じて、最小吸引位置ＰＸＵから最大吸引位置ＰＸＤまでの範囲において変化する。 The reference component position PX indicates the position of the vibration component 121 with respect to the magnetic force generation unit 110 in a non-energized state. The reference component position PX changes in the range from the minimum suction position PXU to the maximum suction position PXD according to the change in the outer blade position C.
　外刃位置Ｃが最大離間位置ＣＵにあるとき、基準部品位置ＰＸは最小吸引位置ＰＸＵにある。すなわち、外刃変位量ＸＢが最小変位量ＸＢＬであるとき、基準部品位置ＰＸは最小吸引位置ＰＸＵにある。 When the outer cutter position C is at the maximum separation position CU, the reference part position PX is at the minimum suction position PXU. That is, when the outer blade displacement amount XB is the minimum displacement amount XBL, the reference component position PX is at the minimum suction position PXU.
　外刃位置Ｃが最大離間位置ＣＵと部品接触位置ＣＭとの間の範囲に含まれるとき、基準部品位置ＰＸは、外刃位置Ｃの変化に反応せずに最小吸引位置ＰＸＵにある。すなわち、外刃変位量ＸＢが最小変位量ＸＢＬと基準変位量ＸＢＭとの間の範囲に含まれるとき、基準部品位置ＰＸは、外刃変位量ＸＢの変化に反応せずに最小吸引位置ＰＸＵにある。 When the outer blade position C is included in the range between the maximum separation position CU and the component contact position CM, the reference component position PX is at the minimum suction position PXU without reacting to the change in the outer blade position C. That is, when the outer blade displacement amount XB is included in the range between the minimum displacement amount XBL and the reference displacement amount XBM, the reference component position PX does not react to the change in the outer blade displacement amount XB and is set to the minimum suction position PXU. is there.
　外刃位置Ｃが部品接触位置ＣＭから最大接近位置ＣＤまでの範囲に含まれるとき、基準部品位置ＰＸは、外刃位置Ｃが最大接近位置ＣＤに近づくにつれて最大吸引位置ＰＸＤに近づく。すなわち、外刃変位量ＸＢが基準変位量ＸＢＭから最大変位量ＸＢＨまでの範囲に含まれるとき、基準部品位置ＰＸは、外刃変位量ＸＢが最大変位量ＸＢＨに近づくにつれて最大吸引位置ＰＸＤに近づく。 When the outer cutter position C is included in the range from the component contact position CM to the maximum approach position CD, the reference component position PX approaches the maximum suction position PXD as the outer cutter position C approaches the maximum approach position CD. That is, when the outer blade displacement amount XB is included in the range from the reference displacement amount XBM to the maximum displacement amount XBH, the reference part position PX approaches the maximum suction position PXD as the outer blade displacement amount XB approaches the maximum displacement amount XBH. .
　外刃位置Ｃが最大接近位置ＣＤにあるとき、基準部品位置ＰＸは最大吸引位置ＰＸＤである。すなわち、外刃変位量ＸＢが最大変位量ＸＢＨであるとき、基準部品位置ＰＸは最大吸引位置ＰＸＤにある。 When the outer cutter position C is at the maximum approach position CD, the reference part position PX is the maximum suction position PXD. That is, when the outer blade displacement amount XB is the maximum displacement amount XBH, the reference component position PX is at the maximum suction position PXD.
　非通電状態の内部隙間距離ＬＡは、基準部品位置ＰＸに応じて変化する。吸引変位量Ｗは、非通電状態の内部隙間距離ＬＡに応じて変化する。このため、吸引変位量Ｗは、基準部品位置ＰＸに応じて変化する。 The internal gap distance LA in the non-energized state changes according to the reference part position PX. The suction displacement amount W changes according to the internal gap distance LA in the non-energized state. Therefore, the suction displacement amount W changes according to the reference part position PX.
　基準部品位置ＰＸが最小吸引位置ＰＸＵであるとき、非通電状態の内部隙間距離ＬＡは、基準部品位置ＰＸに応じた変化範囲内において最も長くなる。このため、基準部品位置ＰＸが最小吸引位置ＰＸＵにあるとき、吸引変位量Ｗは、基準部品位置ＰＸに応じた変化範囲内において最も小さくなる。 When the reference part position PX is the minimum suction position PXU, the internal gap distance LA in the non-energized state is the longest within the change range corresponding to the reference part position PX. For this reason, when the reference part position PX is at the minimum suction position PXU, the suction displacement amount W is the smallest within the change range corresponding to the reference part position PX.
　非通電状態の内部隙間距離ＬＡは、基準部品位置ＰＸが最小吸引位置ＰＸＵから最大吸引位置ＰＸＤに近づくにつれて短くなる。このため、吸引変位量Ｗは、基準部品位置ＰＸが最小吸引位置ＰＸＵから最大吸引位置ＰＸＤに近づくにつれて大きくなる。 The internal gap distance LA in the non-energized state becomes shorter as the reference part position PX approaches the maximum suction position PXD from the minimum suction position PXU. For this reason, the suction displacement amount W increases as the reference part position PX approaches the maximum suction position PXD from the minimum suction position PXU.
　基準部品位置ＰＸが最大吸引位置ＰＸＤにあるとき、非通電状態の内部隙間距離ＬＡは、基準部品位置ＰＸに応じた変化範囲内において最も短くなる。このため、基準部品位置ＰＸが最大吸引位置ＰＸＤにあるとき、吸引変位量Ｗは、基準部品位置ＰＸに応じた変化範囲内において最も大きくなる。 When the reference part position PX is at the maximum suction position PXD, the internal gap distance LA in the non-energized state is the shortest within the change range corresponding to the reference part position PX. For this reason, when the reference part position PX is at the maximum suction position PXD, the suction displacement amount W is the largest within the change range corresponding to the reference part position PX.
　吸引変位量Ｗは、外刃位置Ｃに応じて次のとおり変化する。 The suction displacement amount W varies as follows according to the outer cutter position C.
　吸引変位量Ｗは、外刃位置Ｃが部品接触位置ＣＭよりも最大離間位置ＣＵに近い範囲に含まれるとき、外刃位置Ｃの変化に反応しない。外刃位置Ｃが部品接触位置ＣＭから最大接近位置ＣＤまでの範囲に含まれるとき、吸引変位量Ｗは、外刃位置Ｃが最大接近位置ＣＤに近づくにつれて大きくなる。 The suction displacement amount W does not react to a change in the outer blade position C when the outer blade position C is included in a range closer to the maximum separation position CU than the component contact position CM. When the outer cutter position C is included in the range from the component contact position CM to the maximum approach position CD, the suction displacement amount W increases as the outer cutter position C approaches the maximum approach position CD.
　振動部品１２１は、次のとおり振動入力部１３０に振動を伝達する。 The vibration component 121 transmits vibration to the vibration input unit 130 as follows.
　外刃位置Ｃが部品接触位置ＣＭから最大接近位置ＣＤまでの範囲に含まれる場合、振動発生部１００の駆動状態が非通電状態であるとき、振動部品１２１は、振動入力部１３０に接触している。 When the outer blade position C is included in the range from the component contact position CM to the maximum approach position CD, the vibration component 121 is in contact with the vibration input unit 130 when the driving state of the vibration generating unit 100 is a non-energized state. Yes.
　振動発生部１００の駆動状態が非通電状態から通電状態に変化したとき、振動部品１２１は、引込方向ＤＤに変位する。接触部１２３は、振動部品１２１の変位に応じて振動入力部１３０から離間する。内部隙間距離ＬＡは、振動部品１２１の変位に応じて短くなる。外部隙間距離ＬＢは、振動部品１２１の変位に応じて長くなる。 When the driving state of the vibration generating unit 100 changes from the non-energized state to the energized state, the vibrating component 121 is displaced in the pull-in direction DD. The contact part 123 is separated from the vibration input part 130 according to the displacement of the vibration part 121. The internal gap distance LA is shortened according to the displacement of the vibration component 121. The external gap distance LB becomes longer according to the displacement of the vibration component 121.
　振動発生部１００の駆動状態が通電状態から非通電状態に変化したとき、振動部品１２１は、押付方向ＤＵに変位する。内部隙間距離ＬＡは、振動部品１２１の変位に応じて長くなる。外部隙間距離ＬＢは、振動部品１２１の変位に応じて短くなる。接触部１２３は、振動部品１２１の変位に応じて振動入力部１３０に衝突する。 When the driving state of the vibration generating unit 100 changes from the energized state to the non-energized state, the vibrating component 121 is displaced in the pressing direction DU. The internal gap distance LA becomes longer according to the displacement of the vibration component 121. The external gap distance LB is shortened according to the displacement of the vibration component 121. The contact part 123 collides with the vibration input part 130 according to the displacement of the vibration part 121.
　このため、振動部品１２１は、振動力ＦＶとしての衝撃荷重を振動入力部１３０に伝達する。このため、外刃ブロック３０は、振動入力部１３０に伝達された衝撃荷重を肌２００に伝達する。すなわち、外刃ブロック３０は、押付力ＦＦおよび振動力ＦＶの合力を肌２００に伝達する。 For this reason, the vibration component 121 transmits an impact load as the vibration force FV to the vibration input unit 130. For this reason, the outer blade block 30 transmits the impact load transmitted to the vibration input unit 130 to the skin 200. That is, the outer blade block 30 transmits the resultant force of the pressing force FF and the vibration force FV to the skin 200.
　電気かみそり１は、以下の作用を有する。 The electric razor 1 has the following actions.
　外刃位置Ｃは、肌反力ＦＲに応じて変化する。外刃位置Ｃは、肌反力ＦＲが大きくなるにつれて最大接近位置ＣＤに近づく。外刃位置Ｃは、肌反力ＦＲが基準肌反力ＦＲＸであるとき、部品接触位置ＣＭに達する。肌反力ＦＲが基準肌反力ＦＲＸであるとき、押付力ＦＦは基準押付力ＦＦＸである。 The outer cutter position C changes according to the skin reaction force FR. The outer cutter position C approaches the maximum approach position CD as the skin reaction force FR increases. The outer blade position C reaches the component contact position CM when the skin reaction force FR is the reference skin reaction force FRX. When the skin reaction force FR is the reference skin reaction force FRX, the pressing force FF is the reference pressing force FFX.
　このため、押付力ＦＦが基準押付力ＦＦＸであるとき、外刃位置Ｃは、部品接触位置ＣＭである。このため、押付力ＦＦが基準押付力ＦＦＸ未満から基準押付力ＦＦＸ以上の大きさに変化したとき、外刃ブロック３０は、振動入力部１３０を振動部品１２１に接触させる。このため、押付力ＦＦが基準押付力ＦＦＸ未満から基準押付力ＦＦＸ以上の大きさに変化したとき、振動部品１２１は、振動入力部１３０および外刃ブロック３０に振動を伝達しはじめる。 For this reason, when the pressing force FF is the reference pressing force FFX, the outer blade position C is the component contact position CM. For this reason, when the pressing force FF changes from less than the reference pressing force FFX to a magnitude greater than or equal to the reference pressing force FFX, the outer blade block 30 brings the vibration input unit 130 into contact with the vibration component 121. For this reason, when the pressing force FF changes from less than the reference pressing force FFX to a magnitude equal to or larger than the reference pressing force FFX, the vibration component 121 starts to transmit vibration to the vibration input unit 130 and the outer blade block 30.
　押付力ＦＦが基準押付力ＦＦＸ未満の大きさを有するとき、肌導入量Ｓは、適正範囲に含まれ、かつ適正範囲の上限に対して一定の余裕を持つ。押付力ＦＦが基準押付力ＦＦＸ以上の大きさを有し、押付力ＦＦと基準押付力ＦＦＸとの差が小さいとき、肌導入量Ｓは、適正範囲の上限に対する余裕が小さい。押付力ＦＦが基準押付力ＦＦＸ以上の大きさを有し、押付力ＦＦと基準押付力ＦＦＸとの差が大きいとき、肌導入量Ｓは、適正範囲を超えるおそれが高くなる。 When the pressing force FF has a magnitude less than the reference pressing force FFX, the skin introduction amount S is included in the appropriate range and has a certain margin with respect to the upper limit of the appropriate range. When the pressing force FF is greater than the reference pressing force FFX and the difference between the pressing force FF and the reference pressing force FFX is small, the skin introduction amount S has a small margin with respect to the upper limit of the appropriate range. When the pressing force FF is greater than the reference pressing force FFX and the difference between the pressing force FF and the reference pressing force FFX is large, the skin introduction amount S is likely to exceed the appropriate range.
　このため、振動部品１２１が振動入力部１３０および外刃ブロック３０に振動を伝達しはじめるタイミングは、肌導入量Ｓが適正範囲を超えるおそれが低い状態から、肌導入量Ｓが適正範囲を超えるおそれが高い状態に変化したタイミングに相当する。このため、使用者は、外刃ブロック３０が駆動方向Ｄに振動しはじめたことに基づいて、肌導入量Ｓが適正範囲を超えるおそれが高いことを認識することができる。すなわち、電気かみそり１は、外刃ブロック３０を駆動方向Ｄに振動させることにより、肌導入量Ｓのレベルを使用者に報知することができる。 For this reason, the timing at which the vibration component 121 begins to transmit vibration to the vibration input unit 130 and the outer blade block 30 is such that the skin introduction amount S exceeds the appropriate range from the state where the risk that the skin introduction amount S exceeds the appropriate range is low. This corresponds to the timing when the state changes to a high state. For this reason, the user can recognize that the skin introduction amount S is likely to exceed the appropriate range based on the fact that the outer blade block 30 starts to vibrate in the driving direction D. That is, the electric razor 1 can notify the user of the level of the skin introduction amount S by vibrating the outer blade block 30 in the driving direction D.
　本願発明者は、押付力ＦＦおよび振動力ＦＶの変化にともなう外刃ブロック３０と肌２００との間の関係の変化を確認する試験を実施した。本願発明者は、この試験の結果から以下の知見を得た。 The inventor of the present application conducted a test for confirming a change in the relationship between the outer blade block 30 and the skin 200 with changes in the pressing force FF and the vibration force FV. The inventor of the present application has obtained the following knowledge from the results of this test.
　押付力ＦＦが基準押付力ＦＦＸ未満の大きさを有する場合、押付力ＦＦおよび振動力ＦＶの少なくとも一方が増加するとき、外刃ブロック３０と肌２００との間の密着性が高められる。このため、除毛部２０によって剃られる毛の量が増加しやすくなる。 When the pressing force FF has a magnitude less than the reference pressing force FFX, when at least one of the pressing force FF and the vibration force FV increases, the adhesion between the outer blade block 30 and the skin 200 is enhanced. For this reason, the amount of hair shaved by the hair removal unit 20 is likely to increase.
　押付力ＦＦが基準押付力ＦＦＸ以上の大きさを有する場合、外刃ブロック３０に振動発生部１００の振動力ＦＶが供給されていないか、または比較的小さい振動力ＦＶが供給されるとき、外刃ブロック３０は、適正範囲を超える量の肌２００を導入するおそれが高い。 When the pressing force FF is greater than the reference pressing force FFX, when the vibration force FV of the vibration generating unit 100 is not supplied to the outer blade block 30 or a relatively small vibration force FV is supplied, The blade block 30 is highly likely to introduce skin 200 in an amount exceeding the appropriate range.
　押付力ＦＦが基準押付力ＦＦＸ以上の大きさを有する場合、基準振動力ＦＶＸ以上の大きさを有する振動力ＦＶが振動発生部１００から供給されるとき、外刃ブロック３０は、肌２００から間欠的に離間方向に変位しやすくなる。このため、肌導入量Ｓが減少しやすくなる。 When the pressing force FF has a magnitude greater than or equal to the reference pressing force FFX, when the vibration force FV having a magnitude greater than or equal to the reference vibration force FVX is supplied from the vibration generating unit 100, the outer blade block 30 is intermittent from the skin 200. Therefore, it becomes easy to displace in the separation direction. For this reason, the skin introduction amount S tends to decrease.
　振動力ＦＶに基づく外刃ブロック３０の離間方向への変位は、外刃ブロック３０を肌２００に押し付ける方向とは反対方向のベクトル、または、反対方向に近い方向のベクトルを持つ変位を示す。 The displacement of the outer blade block 30 in the separation direction based on the vibration force FV indicates a displacement having a vector in a direction opposite to the direction in which the outer blade block 30 is pressed against the skin 200 or a vector in a direction close to the opposite direction.
　振動力ＦＶに基づく外刃ブロック３０の離間方向への変位により、外刃ブロック３０と肌２００との間に空間を形成する場合、および、外刃ブロック３０と肌２００との間に空間を形成しない場合がある。振動力ＦＶに基づく外刃ブロック３０の離間方向への変位により、外刃ブロック３０は、肌２００を導入していない状態、または、離間方向への変位前よりも肌導入量Ｓが減少した状態を形成する。外刃ブロック３０と肌２００との間に空間を形成したか否かにかかわらず、振動力ＦＶに基づいて外刃ブロック３０の離間方向への変位により、振動力ＦＶに基づく外刃ブロック３０の離間方向への変位を形成しない場合と比較して、外刃ブロック３０の肌導入量Ｓが減少する。 When a space is formed between the outer blade block 30 and the skin 200 by the displacement of the outer blade block 30 in the separation direction based on the vibration force FV, and a space is formed between the outer blade block 30 and the skin 200. May not. Due to the displacement of the outer blade block 30 in the separation direction based on the vibration force FV, the outer blade block 30 does not introduce the skin 200, or the skin introduction amount S is less than before the displacement in the separation direction. Form. Regardless of whether or not a space is formed between the outer blade block 30 and the skin 200, the outer blade block 30 based on the vibration force FV is displaced by the displacement of the outer blade block 30 in the separation direction based on the vibration force FV. Compared to the case where no displacement in the separating direction is formed, the skin introduction amount S of the outer blade block 30 is reduced.
　このため、押付力ＦＦが基準押付力ＦＦＸ以上の大きさを有することにより、外刃ブロック３０は、適正範囲よりも多い量の肌２００を導入していたとしても、離間方向への変位により肌導入量Ｓを減少させる。このため、肌２００が損傷しにくくなる。すなわち、振動発生部１００の振動力ＦＶは、基準押付力ＦＦＸ以上の大きさを有する押付力ＦＦが肌２００に作用している場合、外刃ブロック３０を肌２００に対して間欠的に離間方向に変位させることにより、肌導入量Ｓを減少させる。 For this reason, when the pressing force FF has a magnitude equal to or larger than the reference pressing force FFX, the outer blade block 30 has a skin displacement due to displacement in the separation direction even if a larger amount of skin 200 than the appropriate range is introduced. The introduction amount S is decreased. For this reason, skin 200 becomes difficult to be damaged. That is, the vibration force FV of the vibration generating unit 100 is intermittently separated from the skin 200 when the pressing force FF having a magnitude greater than or equal to the reference pressing force FFX is acting on the skin 200. The skin introduction amount S is decreased by displacing the skin.
　振動力ＦＶに基づいて外刃ブロック３０が離間方向に変位する理由は、次のように考えられる。肌２００に対して外部から付与される力が大きくなるにつれて、肌２００の凹み変形量が大きくなる。肌２００では、凹み変形量が大きくなるにつれて、押付力ＦＦに基づく変形が生じにくくなる。肌２００は、押付力ＦＦが基準押付力ＦＦＸ以上の大きさを有するとき、変形部分が存在しない状態、または、変形部分が十分に小さい状態を形成する。 The reason why the outer blade block 30 is displaced in the separation direction based on the vibration force FV is considered as follows. As the force applied to the skin 200 from the outside increases, the dent deformation amount of the skin 200 increases. In the skin 200, the deformation based on the pressing force FF is less likely to occur as the dent deformation amount increases. When the pressing force FF has a magnitude equal to or larger than the reference pressing force FFX, the skin 200 forms a state where there is no deformed portion or a state where the deformed portion is sufficiently small.
　このため、押付力ＦＦが基準押付力ＦＦＸ以上の大きさを有する場合において、外刃ブロック３０から振動力ＦＶを受けたとき、肌２００は、振動力ＦＶに基づく凹み変形を生じないか、または振動力ＦＶに基づく凹み変形量は、微小な状態を形成する。このため、外刃ブロック３０は、肌２００に振動力ＦＶを伝達することにともなって、衝撃的かつ大きな反力を肌２００から受け取る。このため、外刃ブロック３０が振動力ＦＶに基づいて間欠的に離間方向に変位すると考えられる。 For this reason, when the pressing force FF has a magnitude equal to or larger than the reference pressing force FFX, when receiving the vibration force FV from the outer blade block 30, the skin 200 does not cause dent deformation based on the vibration force FV, or The dent deformation amount based on the vibration force FV forms a minute state. For this reason, the outer blade block 30 receives a shocking and large reaction force from the skin 200 as the vibration force FV is transmitted to the skin 200. For this reason, it is considered that the outer blade block 30 is intermittently displaced in the separation direction based on the vibration force FV.
　振動発生部１００は、以上の事項を踏まえて、押付力ＦＦが大きくなるにつれて外刃ブロック３０の振動が大きくなる構造を有する。このため、振動発生部１００は、押付力ＦＦが大きくなるにつれて、外刃ブロック３０を肌２００に対して離間方向に変位させやすくなる。このため、肌導入量Ｓが減少しやすくなる。外刃ブロック３０の振動は、以下の理由により、押付力ＦＦが大きくなるにつれて大きくなる。 The vibration generating unit 100 has a structure in which the vibration of the outer blade block 30 increases as the pressing force FF increases in consideration of the above matters. For this reason, the vibration generating unit 100 easily displaces the outer blade block 30 in the separating direction with respect to the skin 200 as the pressing force FF increases. For this reason, the skin introduction amount S tends to decrease. The vibration of the outer blade block 30 increases as the pressing force FF increases for the following reason.
　肌反力ＦＲは、押付力ＦＦが大きくなるにつれて大きくなる。外刃位置Ｃは、肌反力ＦＲが大きくなるにつれて引込方向ＤＤに変化する。基準部品位置ＰＸは、肌反力ＦＲが大きくなるにつれて最大吸引位置ＰＸＤに近づく。内部隙間距離ＬＡは、基準部品位置ＰＸが最大吸引位置ＰＸＤに近づくにつれて短くなる。入力側鉄心１１３の吸引力は、内部隙間距離ＬＡが短くなるにつれて大きくなる。荷重入力部品１２６の圧縮変形量Ｖは、入力側鉄心１１３の吸引力が大きくなるにつれて大きくなる。振動発生部１００の振動力ＦＶは、圧縮変形量Ｖが大きくなるにつれて大きくなる。このため、振動発生部１００の振動力ＦＶは、肌反力ＦＲが大きくなるにつれて大きくなる。このため、外刃ブロック３０の振動は、肌反力ＦＲが大きくなるにつれて大きくなる。このため、外刃ブロック３０の振動は、押付力ＦＦが大きくなるにつれて大きくなる。 The skin reaction force FR increases as the pressing force FF increases. The outer cutter position C changes in the retracting direction DD as the skin reaction force FR increases. The reference part position PX approaches the maximum suction position PXD as the skin reaction force FR increases. The internal gap distance LA becomes shorter as the reference part position PX approaches the maximum suction position PXD. The suction force of the input side iron core 113 increases as the internal gap distance LA decreases. The amount of compressive deformation V of the load input component 126 increases as the suction force of the input side iron core 113 increases. The vibration force FV of the vibration generating unit 100 increases as the compression deformation amount V increases. For this reason, the vibration force FV of the vibration generating unit 100 increases as the skin reaction force FR increases. For this reason, the vibration of the outer blade block 30 increases as the skin reaction force FR increases. For this reason, the vibration of the outer blade block 30 increases as the pressing force FF increases.
　電気かみそり１は、以下の効果を奏する。 The electric razor 1 has the following effects.
　（１）電気かみそり１は、振動発生部１００を有する。振動発生部１００は、振動入力部１３０を介して外刃ブロック３０に振動力ＦＶを伝達する。このため、外刃ブロック３０は、押付力ＦＦが大きいとき、肌２００に対して間欠的に離間方向に変位する。このため、肌２００の損傷が生じにくくなる。すなわち、電気かみそり１は、肌２００の損傷を生じにくくすることに貢献する。 (1) The electric razor 1 has a vibration generating unit 100. The vibration generating unit 100 transmits the vibration force FV to the outer blade block 30 via the vibration input unit 130. For this reason, the outer blade block 30 is displaced in the separation direction intermittently with respect to the skin 200 when the pressing force FF is large. For this reason, damage to the skin 200 is less likely to occur. That is, the electric razor 1 contributes to making the skin 200 less likely to be damaged.
　（２）振動発生部１００は、外刃ブロック３０を肌２００に対して離間方向に変位させる。このため、外刃ブロック３０と肌２００との間の摩擦力が小さくなる。このため、除毛のために肌２００に対して移動する外刃ブロック３０の力が小さくなる。このため、使用者は、除毛のために電気かみそり１を肌２００に対して移動させる力を小さくすることができる。 (2) The vibration generating unit 100 displaces the outer blade block 30 in the separating direction with respect to the skin 200. For this reason, the frictional force between the outer blade block 30 and the skin 200 is reduced. For this reason, the force of the outer blade block 30 that moves relative to the skin 200 for hair removal is reduced. For this reason, the user can make small the force which moves the electric razor 1 with respect to the skin 200 for hair removal.
　（３）押付力ＦＦが基準押付力ＦＦＸ未満の大きさから基準押付力ＦＦＸ以上の大きさに変化したとき、振動発生部１００は、振動入力部１３０に振動を伝達しはじめる。このため、外刃ブロック３０は、肌導入量Ｓが適正範囲を超えるおそれが高いことを、振動により使用者に報知することができる。 (3) When the pressing force FF changes from a magnitude less than the reference pressing force FFX to a magnitude greater than the reference pressing force FFX, the vibration generating unit 100 starts to transmit vibration to the vibration input unit 130. For this reason, the outer blade block 30 can notify the user that the skin introduction amount S is likely to exceed the appropriate range by vibration.
　（４）振動力ＦＶに基づく外刃ブロック３０の離間方向の変位が存在していない場合、肌導入量Ｓは、押付力ＦＦが大きくなるにつれて多くなる。このため、比較的大きな押付力ＦＦは、肌導入量Ｓを過度に多くするおそれを潜在的に有する。一方、振動発生部１００は、押付力ＦＦが大きくなるにつれて振動力ＦＶを増加させる。このため、外刃ブロック３０は、押付力ＦＦが大きくなるにつれて肌２００から離間しやすくなる。このため、比較的大きな押付力ＦＦに起因して肌導入量Ｓが過度に多くなるおそれが低減される。 (4) When there is no displacement in the separating direction of the outer blade block 30 based on the vibration force FV, the skin introduction amount S increases as the pressing force FF increases. For this reason, the relatively large pressing force FF potentially has a risk of excessively increasing the skin introduction amount S. On the other hand, the vibration generating unit 100 increases the vibration force FV as the pressing force FF increases. For this reason, the outer blade block 30 is easily separated from the skin 200 as the pressing force FF increases. For this reason, the possibility that the skin introduction amount S is excessively increased due to the relatively large pressing force FF is reduced.
　（５）電気かみそり１は、比較電気かみそりに対して有利な点を有する。比較電気かみそりは、以下の点において電気かみそり１と相違し、その他の点において、電気かみそり１と同一の構成を有する仮想の電気かみそりを示す。 (5) The electric razor 1 has an advantage over the comparative electric razor. The comparative electric razor is different from the electric razor 1 in the following points, and indicates a virtual electric razor having the same configuration as the electric razor 1 in other points.
　比較電気かみそりでは、肌反力ＦＲが作用していない場合、振動部品および振動入力部が互いに接触している。比較電気かみそりでは、駆動方向Ｄにおいて、出力側鉄心が入力側鉄心に対して外刃ブロックとは反対側に配置されている。 In the comparative electric razor, when the skin reaction force FR is not acting, the vibration component and the vibration input portion are in contact with each other. In the comparative electric razor, in the driving direction D, the output side iron core is disposed on the side opposite to the outer blade block with respect to the input side iron core.
　このため、比較電気かみそりの出力側鉄心は、外刃ブロックが引込方向ＤＤに変化するにつれて、入力側鉄心から離間する。このため、比較電気かみそりの内部隙間距離ＬＡは、肌反力ＦＲが大きくなるにつれて長くなる。このため、比較電気かみそりの入力側鉄心の吸引力は、肌反力ＦＲが大きくなるにつれて小さくなる。 For this reason, the output side iron core of the comparative electric razor is separated from the input side iron core as the outer blade block changes in the retracting direction DD. For this reason, the internal clearance distance LA of the comparative electric razor becomes longer as the skin reaction force FR increases. For this reason, the suction force of the input side iron core of the comparative electric razor decreases as the skin reaction force FR increases.
　このため、比較電気かみそりの振動力ＦＶは、肌反力ＦＲが大きくなるにつれて小さくなる。このため、比較電気かみそりの外刃ブロックの振動は、押付力ＦＦが大きくなるにつれて小さくなる。すなわち、比較電気かみそりの振動発生部は、押付力ＦＦが大きくなるにつれて、実質的に機能していない状態に近づく。 Therefore, the vibration force FV of the comparative electric razor decreases as the skin reaction force FR increases. For this reason, the vibration of the outer cutter block of the comparative electric razor decreases as the pressing force FF increases. That is, the vibration generating portion of the comparative electric razor approaches a state where it does not substantially function as the pressing force FF increases.
　一方、電気かみそり１の振動発生部１００は、押付力ＦＦが大きくなるにつれて内部隙間距離ＬＡが短くなる。このため、振動発生部１００による外刃ブロック３０を振動させる能力は、押付力ＦＦが大きくなるにつれて高くなる。このため、振動発生部１００は、肌２００の損傷を生じにくくする効果を高めることに貢献する。 On the other hand, in the vibration generating unit 100 of the electric razor 1, the internal gap distance LA becomes shorter as the pressing force FF becomes larger. Therefore, the ability of the vibration generating unit 100 to vibrate the outer blade block 30 increases as the pressing force FF increases. For this reason, the vibration generating unit 100 contributes to enhancing the effect of making the skin 200 less likely to be damaged.
　（第２実施形態）
　図４は、第２実施形態の電気かみそり１の一形態を示している。 (Second Embodiment)
FIG. 4 shows one form of the electric shaver 1 of the second embodiment.
　第２実施形態の電気かみそり１は、複数の構成要素を有する。第２実施形態の複数の構成要素は、第１実施形態の電気かみそり１が有する複数の構成要素と同様または類似の構造および機能を有する。第２実施形態の電気かみそり１の説明は、第１実施形態の構成要素と同様または類似の構造および機能を有する第２実施形態の構成要素の説明の一部または全部を省略する。第２実施形態の電気かみそり１の説明は、第１実施形態の構成要素と同様または類似の構造および機能を有する第２実施形態の構成要素の少なくとも一部に対して、第１実施形態の構成要素と同一の符号を付している。 The electric shaver 1 of the second embodiment has a plurality of components. The plurality of components of the second embodiment have the same or similar structure and function as the components of the electric shaver 1 of the first embodiment. Description of the electric shaver 1 of 2nd Embodiment abbreviate | omits a part or all of description of the component of 2nd Embodiment which has the same or similar structure and function as the component of 1st Embodiment. The description of the electric shaver 1 of the second embodiment is the configuration of the first embodiment with respect to at least a part of the components of the second embodiment having the same or similar structure and function as the components of the first embodiment. The same reference numerals are used for the elements.
　第２実施形態の電気かみそり１は、主として、次の点において第１実施形態の電気かみそり１と相違する。第１実施形態の電気かみそり１は、外刃ブロック３０が肌２００に押し付けられていない場合に外部隙間距離ＬＢを調整するための機構を有していない。第２実施形態の電気かみそり１は、外刃ブロック３０が肌２００に押し付けられていない場合に外部隙間距離ＬＢを調整するための隙間調整部１４０を有する。 The electric shaver 1 of the second embodiment is mainly different from the electric shaver 1 of the first embodiment in the following points. The electric razor 1 of the first embodiment does not have a mechanism for adjusting the external gap distance LB when the outer blade block 30 is not pressed against the skin 200. The electric razor 1 according to the second embodiment includes a gap adjusting unit 140 for adjusting the external gap distance LB when the outer blade block 30 is not pressed against the skin 200.
　隙間調整部１４０は、複数の構成要素の集合により構成されている。隙間調整部１４０の複数の構成要素は、位置規制機構１４１、操作部品１４２、および２つのばね１４３を含む。 The gap adjustment unit 140 is configured by a set of a plurality of components. The plurality of components of the gap adjustment unit 140 include a position restriction mechanism 141, an operation component 142, and two springs 143.
　２つのばね１４３は、本体部１０と外刃ケース３１との間に配置されている。２つのばね１４３は、電気かみそり１の幅方向の中心線に対して左右対称の位置に配置されている。ばね１４３は、外刃ブロック３０が引込方向ＤＤに変位することにより圧縮変形する。 The two springs 143 are disposed between the main body 10 and the outer blade case 31. The two springs 143 are disposed at symmetrical positions with respect to the center line of the electric razor 1 in the width direction. The spring 143 is compressed and deformed when the outer blade block 30 is displaced in the retracting direction DD.
　操作部品１４２は、本体部１０のケース上に形成されている。操作部品１４２に外力が供給されることにより、操作部品１４２は本体部１０に対して変位する。操作部品１４２は、リンク機構（図示略）を介して位置規制機構１４１と連結されている。操作部品１４２は、操作部品１４２の操作位置の変化に応じて位置規制機構１４１を動作させる。操作部品１４２の操作位置は、最大離間設定位置から最大接近設定位置までの範囲において連続的または段階的に変化する。操作部品１４２の操作位置は、最大離間設定位置と最大接近設定位置との間に基準設定位置を有する。 The operation component 142 is formed on the case of the main body 10. When the external force is supplied to the operation component 142, the operation component 142 is displaced with respect to the main body 10. The operation component 142 is connected to the position restriction mechanism 141 via a link mechanism (not shown). The operation component 142 operates the position restriction mechanism 141 in accordance with a change in the operation position of the operation component 142. The operation position of the operation component 142 changes continuously or stepwise in the range from the maximum separation setting position to the maximum approach setting position. The operation position of the operation component 142 has a reference setting position between the maximum separation setting position and the maximum approach setting position.
　位置規制機構１４１は、外刃ブロック３０が本体部１０に対して押付方向ＤＵに変位することができる限界の位置（以下、「離間限界位置ＣＸ」）を、操作部品１４２の操作位置の変化に応じて変更する。位置規制機構１４１は、外刃ブロック３０の引込方向ＤＤの変位を規制しない。外刃ブロック３０は、肌反力ＦＲが作用していない状態において離間限界位置ＣＸに位置する。 The position regulating mechanism 141 changes the limit position (hereinafter, “separation limit position CX”) at which the outer blade block 30 can be displaced in the pressing direction DU with respect to the main body 10 to change the operation position of the operation component 142. Change accordingly. The position restricting mechanism 141 does not restrict the displacement of the outer blade block 30 in the retracting direction DD. The outer blade block 30 is located at the separation limit position CX in a state where the skin reaction force FR is not acting.
　操作部品１４２の操作位置が最大離間設定位置にあるとき、位置規制機構１４１は、離間限界位置ＣＸを最大離間位置ＣＵに設定する。操作部品１４２の操作位置が基準設定位置にあるとき、位置規制機構１４１は、離間限界位置ＣＸを部品接触位置ＣＭに設定する。操作部品１４２の操作位置が最大接近設定位置にあるとき、位置規制機構１４１は、離間限界位置ＣＸを最大接近位置ＣＤに設定する。 When the operation position of the operation component 142 is at the maximum separation setting position, the position regulation mechanism 141 sets the separation limit position CX to the maximum separation position CU. When the operation position of the operation component 142 is at the reference setting position, the position restriction mechanism 141 sets the separation limit position CX to the component contact position CM. When the operation position of the operation component 142 is at the maximum approach setting position, the position restriction mechanism 141 sets the separation limit position CX to the maximum approach position CD.
　非通電状態の外部隙間距離ＬＢは、離間限界位置ＣＸが最大離間位置ＣＵにあるとき、操作部品１４２の操作位置に基づく変化範囲において最も長くなる。離間限界位置ＣＸが最大離間位置ＣＵと部品接触位置ＣＭとの間の範囲に含まれるとき、非通電状態の外部隙間距離ＬＢは、離間限界位置ＣＸが部品接触位置ＣＭに近づくにつれて短くなる。離間限界位置ＣＸが部品接触位置ＣＭにあるとき、非通電状態の外部隙間距離ＬＢは「０」である。離間限界位置ＣＸが部品接触位置ＣＭと最大接近位置ＣＤと間の範囲に含まれるとき、非通電状態の外部隙間距離ＬＢは「０」である。離間限界位置ＣＸが最大接近位置ＣＤにあるとき、非通電状態の外部隙間距離ＬＢは「０」である。 When the separation limit position CX is at the maximum separation position CU, the external gap distance LB in the non-energized state is the longest in the change range based on the operation position of the operation component 142. When the separation limit position CX is included in the range between the maximum separation position CU and the component contact position CM, the external gap distance LB in the non-energized state becomes shorter as the separation limit position CX approaches the component contact position CM. When the separation limit position CX is at the component contact position CM, the external gap distance LB in the non-energized state is “0”. When the separation limit position CX is included in the range between the component contact position CM and the maximum approach position CD, the external gap distance LB in the non-energized state is “0”. When the separation limit position CX is at the maximum approach position CD, the external gap distance LB in the non-energized state is “0”.
　離間限界位置ＣＸが最大離間位置ＣＵにある場合、振動発生部１００は、押付力ＦＦが基準押付力ＦＦＸ未満から基準押付力ＦＦＸ以上の大きさに変化したとき、振動入力部１３０に振動を伝達しはじめる。すなわち、振動発生部１００は、第１実施形態の振動発生部１００と同じ動作を形成する。 When the separation limit position CX is at the maximum separation position CU, the vibration generating unit 100 transmits vibration to the vibration input unit 130 when the pressing force FF changes from less than the reference pressing force FFX to a magnitude equal to or larger than the reference pressing force FFX. Start to do. That is, the vibration generating unit 100 forms the same operation as the vibration generating unit 100 of the first embodiment.
　離間限界位置ＣＸが最大離間位置ＣＵと部品接触位置ＣＭとの間にある場合、押付力ＦＦが所定押付力ＦＦＷ未満から所定押付力ＦＦＷ以上の大きさに変化したとき、振動発生部１００は、振動入力部１３０に振動を伝達しはじめる。所定押付力ＦＦＷは、「０」よりも大きく、基準押付力ＦＦＸよりも小さい。所定押付力ＦＦＷは、離間限界位置ＣＸが部品接触位置ＣＭに近づくにつれて小さくなる。 When the separation limit position CX is between the maximum separation position CU and the component contact position CM, when the pressing force FF changes from less than the predetermined pressing force FFW to a magnitude equal to or larger than the predetermined pressing force FFW, the vibration generating unit 100 The vibration starts to be transmitted to the vibration input unit 130. The predetermined pressing force FFW is larger than “0” and smaller than the reference pressing force FFX. The predetermined pressing force FFW decreases as the separation limit position CX approaches the component contact position CM.
　離間限界位置ＣＸが部品接触位置ＣＭから最大接近位置ＣＤまでの範囲に含まれる場合、押付力ＦＦが「０」よりも大きな値に変化したとき、振動発生部１００は、振動入力部１３０に振動を伝達しはじめる。 When the separation limit position CX is included in the range from the component contact position CM to the maximum approach position CD, the vibration generating unit 100 causes the vibration input unit 130 to vibrate when the pressing force FF changes to a value larger than “0”. Begin to communicate.
　第２実施形態の電気かみそり１は、第１実施形態の電気かみそり１が奏する（１）の効果、すなわち、肌２００を損傷させにくくすることに貢献する旨の効果、および（２）～（５）の効果を奏する。第２実施形態の電気かみそり１は、さらに以下の効果を奏する。 The electric razor 1 of the second embodiment has the effect (1) produced by the electric razor 1 of the first embodiment, that is, the effect of contributing to making the skin 200 difficult to damage, and (2) to (5) ). The electric shaver 1 of the second embodiment further has the following effects.
　（６）電気かみそり１は、隙間調整部１４０を有する。隙間調整部１４０は、操作部品１４２の操作位置に応じて外部隙間距離ＬＢの大きさを調整する。このため、使用者は、振動発生部１００が外刃ブロック３０に振動を伝達しはじめるときの押付力ＦＦの大きさを調整することができる。 (6) The electric razor 1 has a gap adjustment unit 140. The gap adjustment unit 140 adjusts the size of the external gap distance LB according to the operation position of the operation component 142. For this reason, the user can adjust the magnitude of the pressing force FF when the vibration generating unit 100 starts to transmit vibration to the outer blade block 30.
　（第３実施形態）
　図１は、第３実施形態の電気かみそり１の一形態を示している。 (Third embodiment)
FIG. 1 shows an embodiment of an electric shaver 1 according to the third embodiment.
　第３実施形態の電気かみそり１は、複数の構成要素を有する。第３実施形態の複数の構成要素は、第３実施形態の電気かみそり１が有する複数の構成要素と同様または類似の構造および機能を有する。第３実施形態の電気かみそり１の説明は、第１実施形態の構成要素と同様または類似の構造および機能を有する第３実施形態の構成要素の説明の一部または全部を省略する。第３実施形態の電気かみそり１の説明は、第１実施形態の構成要素と同様または類似の構造および機能を有する第３実施形態の構成要素の少なくとも一部に対して、第３実施形態の構成要素と同一の符号を付している。 The electric shaver 1 of the third embodiment has a plurality of components. The plurality of components of the third embodiment have the same or similar structures and functions as the components of the electric shaver 1 of the third embodiment. Description of the electric shaver 1 of 3rd Embodiment abbreviate | omits part or all of description of the component of 3rd Embodiment which has the same or similar structure and function as the component of 1st Embodiment. The description of the electric shaver 1 of the third embodiment is the same as the configuration of the third embodiment with respect to at least a part of the components of the third embodiment having the same or similar structure and function as the components of the first embodiment. The same reference numerals are used for the elements.
　第３実施形態の電気かみそり１は、主として、次の点において第１実施形態の電気かみそり１と相違する。第１実施形態の電気かみそり１は、電源スイッチ６０のオン操作にともない振動発生部１００を駆動する。第３実施形態の電気かみそり１は、肌反力ＦＲを検知し、検知結果に基づいて振動発生部１００を駆動する。 The electric razor 1 of the third embodiment is mainly different from the electric razor 1 of the first embodiment in the following points. The electric shaver 1 according to the first embodiment drives the vibration generating unit 100 when the power switch 60 is turned on. The electric razor 1 of 3rd Embodiment detects the skin reaction force FR, and drives the vibration generation part 100 based on a detection result.
　第３実施形態の電気かみそり１は、以下の詳細な構成を有する。 The electric shaver 1 of the third embodiment has the following detailed configuration.
　電気かみそり１は、負荷検知部（図示略）を有する。負荷検知部は、外刃ブロック３０の変位、外刃ブロック３０の圧力、または、外刃ブロック３０のひずみに応じて変化する検知信号を生成する。制御部７０は、負荷検知部の検知信号と基準信号とを比較し、比較結果に基づいて振動発生部１００を制御する。制御部７０は、肌反力ＦＲが基準肌反力ＦＲＸ以上の大きさを有することが、負荷検知部の検知信号および基準信号の関係により示唆されるとき、コイル１１２への通電を開始する。制御部７０は、一定の大きさの電流をコイル１１２に流す。制御部７０は、肌反力ＦＲが基準肌反力ＦＲＸ未満の大きさを有することが、負荷検知部の検知信号および基準信号の関係により示唆されるとき、コイル１１２への通電を停止する。 The electric razor 1 has a load detection unit (not shown). The load detection unit generates a detection signal that changes according to the displacement of the outer blade block 30, the pressure of the outer blade block 30, or the strain of the outer blade block 30. The control unit 70 compares the detection signal of the load detection unit with the reference signal, and controls the vibration generation unit 100 based on the comparison result. The control unit 70 starts energization of the coil 112 when the relationship between the detection signal of the load detection unit and the reference signal indicates that the skin reaction force FR is greater than or equal to the reference skin reaction force FRX. The control unit 70 causes a constant current to flow through the coil 112. The control unit 70 stops energization of the coil 112 when the relationship between the detection signal of the load detection unit and the reference signal indicates that the skin reaction force FR has a magnitude less than the reference skin reaction force FRX.
　第３実施形態の電気かみそり１は、第１実施形態の電気かみそり１が奏する（１）の効果、すなわち、肌２００を損傷させにくくすることに貢献する旨の効果、および、（２）～（５）の効果を奏する。 The electric razor 1 of the third embodiment has the effect (1) produced by the electric razor 1 of the first embodiment, that is, the effect that it contributes to making the skin 200 difficult to be damaged, and (2) to ( The effect 5) is produced.
　（その他の実施形態）
　本電気かみそりは、第１実施形態～第３実施形態とは異なるその他の実施形態を含む。その他の実施形態は、一例として、以下に示される第１実施形態～第３実施形態の変形例の形態を有する。なお、以下の各変形例は、技術的に矛盾しない範囲において互いに組み合わせることができる。 (Other embodiments)
The electric razor includes other embodiments different from the first to third embodiments. Other embodiments have, as an example, forms of modifications of the first to third embodiments shown below. Note that the following modifications can be combined with each other within a technically consistent range.
　・第１実施形態の振動発生部１００は、入力側鉄心１１３をケース１０１に固定している。ただし、振動発生部１００の構成は、第１実施形態に例示された内容に限られない。変形例の振動発生部１００は、入力側鉄心１１３がケース１０１に対して変位することが可能な構造を有する。なお、第２実施形態および第３実施形態の振動発生部１００においても同様の変形が成立する。 In the vibration generating unit 100 of the first embodiment, the input side iron core 113 is fixed to the case 101. However, the configuration of the vibration generating unit 100 is not limited to the content exemplified in the first embodiment. The vibration generating unit 100 according to the modified example has a structure in which the input side iron core 113 can be displaced with respect to the case 101. Note that the same deformation is also established in the vibration generating unit 100 of the second embodiment and the third embodiment.
　・第１実施形態の振動発生部１００は、樹脂材料により形成された振動部品１２１を有する。ただし、振動部品１２１の材質は、第１実施形態に例示された内容に限られない。変形例の振動発生部１００は、一例として、金属材料により形成された振動部品１２１を有する。なお、第２実施形態および第３実施形態の振動発生部１００においても同様の変形が成立する。 The vibration generating unit 100 according to the first embodiment has a vibration component 121 formed of a resin material. However, the material of the vibration component 121 is not limited to the content exemplified in the first embodiment. As an example, the vibration generating unit 100 according to the modification includes a vibration component 121 formed of a metal material. Note that the same deformation is also established in the vibration generating unit 100 of the second embodiment and the third embodiment.
　・第１実施形態の振動部品１２１は、結合部１２２および接触部１２３が同一の材料により一体的に形成された構造を有する。ただし、振動部品１２１の構造は、第１実施形態に例示された内容に限られない。変形性の振動部品１２１は、個別の部品として形成された結合部１２２および接触部１２３が互いに結合された構造を有する。この振動部品１２１は、結合部１２２および接触部１２３の材質を互いに異ならせることができる。なお、第２実施形態および第３実施形態の振動部品１２１においても同様の変形が成立する。 The vibration component 121 according to the first embodiment has a structure in which the coupling portion 122 and the contact portion 123 are integrally formed of the same material. However, the structure of the vibration component 121 is not limited to the content exemplified in the first embodiment. The deformable vibration component 121 has a structure in which a coupling portion 122 and a contact portion 123 formed as individual components are coupled to each other. In the vibration component 121, the material of the coupling portion 122 and the contact portion 123 can be made different from each other. Note that the same deformation is also established in the vibration component 121 of the second embodiment and the third embodiment.
　・第１実施形態の振動入力部１３０は、外刃ケース３１と同一の材料により一体的に形成されている。ただし、振動入力部１３０の構成は、第１実施形態に例示された内容に限られない。変形例の振動入力部１３０は、外刃ケース３１とは別の部品として形成され、外刃ケース３１に結合されている。なお、第２実施形態および第３実施形態の振動入力部１３０においても同様の変形が成立する。 The vibration input unit 130 of the first embodiment is integrally formed of the same material as the outer blade case 31. However, the configuration of the vibration input unit 130 is not limited to the content exemplified in the first embodiment. The vibration input unit 130 of the modified example is formed as a part different from the outer cutter case 31 and is coupled to the outer cutter case 31. Note that the same deformation is also established in the vibration input unit 130 of the second embodiment and the third embodiment.
　・第１実施形態の電気かみそり１は、肌反力ＦＲが作用していない状態において、振動部品１２１と振動入力部１３０との間に外部隙間１０３を形成する。振動入力部１３０は、肌反力ＦＲが基準肌反力ＦＲＸ以上の大きさを取るとき、振動部品１２１と接触する。ただし、振動部品１２１および振動入力部１３０の関係は、第１実施形態に例示された内容に限られない。変形例の電気かみそり１は、肌反力ＦＲが作用していない状態において、振動部品１２１および振動入力部１３０が互いに接触する構造を有する。なお、第３実施形態の電気かみそり１においても同様の変形が成立する。 The electric razor 1 of the first embodiment forms the external gap 103 between the vibration component 121 and the vibration input unit 130 in a state where the skin reaction force FR is not acting. The vibration input unit 130 contacts the vibration component 121 when the skin reaction force FR is greater than or equal to the reference skin reaction force FRX. However, the relationship between the vibration component 121 and the vibration input unit 130 is not limited to the content exemplified in the first embodiment. The electric shaver 1 according to the modification has a structure in which the vibration component 121 and the vibration input unit 130 are in contact with each other in a state where the skin reaction force FR is not acting. Note that the same modification is established in the electric shaver 1 of the third embodiment.
　・第１実施形態の電気かみそり１は、振動入力部１３０および振動部品１２１の接触により、振動発生部１００の振動力ＦＶを外刃ブロック３０に伝達する。ただし、振動力ＦＶを外刃ブロック３０に伝達するための構成は、第１実施形態に例示された構成に限られない。変形例の電気かみそり１は、振動入力部１３０を省略している。振動発生部１００は、振動部品１２１を外刃ケース３１に接触させることにより、振動力ＦＶを外刃ブロック３０に伝達する。 The electric razor 1 according to the first embodiment transmits the vibration force FV of the vibration generating unit 100 to the outer blade block 30 by the contact between the vibration input unit 130 and the vibration component 121. However, the configuration for transmitting the vibration force FV to the outer blade block 30 is not limited to the configuration illustrated in the first embodiment. In the electric shaver 1 according to the modification, the vibration input unit 130 is omitted. The vibration generating unit 100 transmits the vibration force FV to the outer blade block 30 by bringing the vibration component 121 into contact with the outer blade case 31.
　・第１実施形態の電気かみそり１は、図２に例示される外刃ブロック３０を有する。ただし、外刃ブロック３０の構成は、第１実施形態に例示された内容に限られない。変形例の電気かみそり１は、外刃ブロック３０に代えて変形外刃ブロックを有する。変形外刃ブロックは、外刃ブロック３０の機能に準じた機能を有し、外刃ブロック３０と異なる構成を有する。なお、第２実施形態および第３実施形態の電気かみそり１においても同様の変形が成立する。 -The electric shaver 1 of 1st Embodiment has the outer blade block 30 illustrated by FIG. However, the configuration of the outer cutter block 30 is not limited to the content exemplified in the first embodiment. The modified electric razor 1 has a modified outer blade block in place of the outer blade block 30. The deformed outer blade block has a function according to the function of the outer blade block 30 and has a configuration different from that of the outer blade block 30. Note that the same modification is established in the electric shaver 1 of the second embodiment and the third embodiment.
　・第１実施形態の電気かみそり１は、図２に例示される内刃ブロック４０を有する。ただし、内刃ブロック４０の構成は、第１実施形態に例示された内容に限られない。変形例の電気かみそり１は、内刃ブロック４０に代えて変形内刃ブロックを有する。変形内刃ブロックは、内刃ブロック４０の機能に準じた機能を有し、内刃ブロック４０と異なる構成を有する。なお、第２実施形態および第３実施形態の電気かみそり１においても同様の変形が成立する。 -The electric shaver 1 of 1st Embodiment has the inner blade block 40 illustrated by FIG. However, the configuration of the inner blade block 40 is not limited to the content exemplified in the first embodiment. The modified electric razor 1 has a modified inner blade block instead of the inner blade block 40. The modified inner blade block has a function according to the function of the inner blade block 40 and has a configuration different from that of the inner blade block 40. Note that the same modification is established in the electric shaver 1 of the second embodiment and the third embodiment.
　・第１実施形態の電気かみそり１は、図２に例示される磁力発生部１１０を有する。ただし、磁力発生部１１０の構成は、第１実施形態に例示された内容に限られない。変形例の電気かみそり１は、磁力発生部１１０に代えて変形磁力発生部を有する。変形磁力発生部は、磁力発生部１１０の機能に準じた機能を有し、磁力発生部１１０と異なる構成を有する。なお、第２実施形態および第３実施形態の電気かみそり１においても同様の変形が成立する。 The electric razor 1 of the first embodiment has a magnetic force generator 110 illustrated in FIG. However, the configuration of the magnetic force generation unit 110 is not limited to the content exemplified in the first embodiment. The electric shaver 1 according to the modified example has a deformed magnetic force generator instead of the magnetic force generator 110. The deformed magnetic force generation unit has a function according to the function of the magnetic force generation unit 110 and has a configuration different from that of the magnetic force generation unit 110. Note that the same modification is established in the electric shaver 1 of the second embodiment and the third embodiment.
　・第１実施形態の電気かみそり１は、図２に例示される出力可動部１２０を有する。ただし、出力可動部１２０の構成は、第１実施形態に例示された内容に限られない。変形例の電気かみそり１は、出力可動部１２０に代えて変形出力可動部を有する。変形出力可動部は、出力可動部１２０の機能に準じた機能を有し、出力可動部１２０と異なる構成を有する。なお、第２実施形態および第３実施形態の電気かみそり１においても同様の変形が成立する。 The electric razor 1 according to the first embodiment has an output movable unit 120 illustrated in FIG. However, the configuration of the output movable unit 120 is not limited to the content exemplified in the first embodiment. The electric shaver 1 according to the modified example has a modified output movable portion instead of the output movable portion 120. The deformable output movable unit has a function according to the function of the output movable unit 120 and has a configuration different from that of the output movable unit 120. Note that the same modification is established in the electric shaver 1 of the second embodiment and the third embodiment.
　・第１実施形態の電気かみそり１は、図２に例示される振動入力部１３０を有する。ただし、振動入力部１３０の構成は、第１実施形態に例示された内容に限られない。変形例の電気かみそり１は、振動入力部１３０に代えて変形振動入力部を有する。変形振動入力部は、振動入力部１３０の機能に準じた機能を有し、振動入力部１３０と異なる構成を有する。なお、第２実施形態および第３実施形態の電気かみそり１においても同様の変形が成立する。 -The electric shaver 1 of 1st Embodiment has the vibration input part 130 illustrated by FIG. However, the configuration of the vibration input unit 130 is not limited to the content exemplified in the first embodiment. The electric shaver 1 according to the modified example has a modified vibration input unit instead of the vibration input unit 130. The deformation vibration input unit has a function according to the function of the vibration input unit 130 and has a configuration different from that of the vibration input unit 130. Note that the same modification is established in the electric shaver 1 of the second embodiment and the third embodiment.
　・第２実施形態の電気かみそり１は、図４に例示される隙間調整部１４０を有する。ただし、隙間調整部１４０の構成は、第２実施形態に例示された内容に限られない。変形例の電気かみそり１は、隙間調整部１４０に代えて変形隙間調整部を有する。変形隙間調整部は、隙間調整部１４０の機能に準じた機能を有し、隙間調整部１４０と異なる構成を有する。 -The electric shaver 1 of 2nd Embodiment has the clearance gap adjustment part 140 illustrated by FIG. However, the configuration of the gap adjustment unit 140 is not limited to the content exemplified in the second embodiment. The electric shaver 1 according to the modified example has a modified gap adjusting unit instead of the gap adjusting unit 140. The deformation gap adjustment unit has a function according to the function of the gap adjustment unit 140 and has a configuration different from that of the gap adjustment unit 140.
　・第３実施形態の制御部７０は、肌反力ＦＲが基準肌反力ＦＲＸ以上の大きさを取ることが、負荷検知部の検知信号および基準信号の関係により示唆されるとき、一定の電流をコイル１１２に流す。ただし、制御部７０の制御内容は、第３実施形態に例示された内容に限られない。変形例の制御部７０は、コイル１１２に流す電流の大きさを肌反力ＦＲに応じて変化させる。この制御部７０は、一例として、以下の構成を有する。 The control unit 70 of the third embodiment has a constant current when the skin reaction force FR is greater than the reference skin reaction force FRX, which is suggested by the relationship between the detection signal of the load detection unit and the reference signal. Is passed through the coil 112. However, the control content of the control unit 70 is not limited to the content exemplified in the third embodiment. The control unit 70 according to the modification changes the magnitude of the current flowing through the coil 112 according to the skin reaction force FR. For example, the control unit 70 has the following configuration.
　制御部７０は、肌反力ＦＲが基準肌反力ＦＲＸ以上の大きさを取ることが、負荷検知部の検知信号および基準信号の関係により示唆されるとき、負荷検知部の検知信号と高反力判定信号とを比較する。制御部７０は、負荷検知部の検知信号および高反力判定信号の比較結果に基づいて、基準肌反力ＦＲＸよりも大きい高反力と肌反力ＦＲとの関係を判定する。 When it is suggested by the relationship between the detection signal of the load detection unit and the reference signal that the skin reaction force FR is greater than or equal to the reference skin reaction force FRX, the control unit 70 determines that the reaction force FR Compare with force judgment signal. The control unit 70 determines the relationship between the high reaction force larger than the reference skin reaction force FRX and the skin reaction force FR based on the comparison result between the detection signal of the load detection unit and the high reaction force determination signal.
　制御部７０は、肌反力ＦＲが高反力以上の大きさを取ることが、負荷検知部の検知信号および高反力判定信号の関係により示唆されるとき、高負荷時電流をコイル１１２に流す。制御部７０は、肌反力ＦＲが高反力未満の大きさを取ることが、負荷検知部の検知信号および高反力判定信号の関係により示唆されるとき、高負荷時電流よりも小さい低負荷時電流をコイル１１２に流す。このため、振動発生部１００の振動力ＦＶは、肌反力ＦＲが高反力以上の大きさを取るとき、肌反力ＦＲが高反力未満の大きさを取るときよりも大きくなる。このため、外刃ブロック３０は、肌反力ＦＲが高反力以上の大きさを取るとき、肌２００から離間方向により変位しやすくなる。 When it is suggested by the relationship between the detection signal of the load detection unit and the high reaction force determination signal that the skin reaction force FR has a magnitude greater than or equal to the high reaction force, the control unit 70 applies a high load current to the coil 112. Shed. When it is suggested by the relationship between the detection signal of the load detection unit and the high reaction force determination signal that the skin reaction force FR is less than the high reaction force, the control unit 70 is smaller than the current at high load. A load current is passed through the coil 112. For this reason, the vibration force FV of the vibration generating unit 100 is greater when the skin reaction force FR is greater than or equal to the high reaction force than when the skin reaction force FR is less than the high reaction force. For this reason, when the skin reaction force FR takes a magnitude greater than or equal to the high reaction force, the outer blade block 30 is easily displaced from the skin 200 in the separation direction.
　（課題を解決するための手段に関する付記）
　課題を解決するための手段は、下記の〔付記項１〕～〔付記項４〕を含む。なお、〔付記項１〕～〔付記項４〕が有する事項は、実施形態において開示された事項と対応している。 (Additional note regarding means for solving the problem)
Means for solving the problems include the following [Appendix 1] to [Appendix 4]. The items included in [Appendix 1] to [Appendix 4] correspond to the items disclosed in the embodiment.
　〔付記項１〕
　請求項１～３のいずれか一項に記載の電気かみそりにおいて、前記振動発生部は、前記除毛部の負荷が大きくなるにつれて前記除毛部に供給する振動力を増加させる。 [Additional Item 1]
The electric shaver according to any one of claims 1 to 3, wherein the vibration generating unit increases a vibration force supplied to the hair removal unit as a load on the hair removal unit increases.
　〔付記項２〕
　請求項１～３のいずれか一項、または、付記項１に記載の電気かみそりにおいて、前記振動発生部は、前記除毛部の高さ方向において前記除毛部を振動させる。 [Appendix 2]
The electric shaver according to any one of claims 1 to 3, or the supplementary claim 1, wherein the vibration generating section vibrates the hair removal section in a height direction of the hair removal section.
　〔付記項３〕
　請求項２もしくは３、または、付記項１もしくは２に記載の電気かみそりにおいて、前記電気かみそりは、制御部および負荷検知部を有する。前記負荷検知部は、前記除毛部に供給される負荷に応じて変化する検知信号を生成する。前記制御部は、前記除毛部の負荷が増加していることが前記検知信号により示唆されるとき、前記磁力発生部に供給する電流を大きくする。 [Additional Item 3]
The electric razor according to claim 2 or 3, or appendix 1 or 2, wherein the electric razor includes a control unit and a load detection unit. The load detection unit generates a detection signal that changes according to a load supplied to the hair removal unit. The control unit increases the current supplied to the magnetic force generation unit when the detection signal indicates that the load on the hair removal unit is increasing.
　〔付記項４〕
　前記電気かみそりは、本体部、除毛部、および振動発生部を有する。前記本体部は、前記除毛部を支持する。前記振動発生部は、磁力発生部および出力可動部を有する。前記磁力発生部は、コイルおよび入力側鉄心を有し、前記コイルにより磁界を形成し、前記入力側鉄心の吸引力を前記出力可動部に作用させる。前記出力可動部は、振動部品および出力側鉄心を有する。前記出力側鉄心は、前記振動部品と結合し、前記入力側鉄心の吸引力に基づいて前記磁力発生部に対して運動する。前記振動部品は、前記出力側鉄心の運動に基づいて前記除毛部に振動を伝達する。前記電気かみそりは、前記除毛部と前記振動部品との間に形成された隙間を有する。前記隙間は、前記除毛部の負荷が大きくなるにつれて小さくなる。前記振動部品は、前記隙間が存在しているとき、前記除毛部に振動を伝達せず、前記隙間が存在していないとき、前記除毛部に振動を伝達する。 [Additional Item 4]
The electric razor has a main body part, a hair removal part, and a vibration generating part. The body portion supports the hair removal portion. The vibration generating unit includes a magnetic force generating unit and an output movable unit. The magnetic force generator has a coil and an input side iron core, forms a magnetic field with the coil, and causes the attraction force of the input side iron core to act on the output movable part. The output movable part has a vibration component and an output side iron core. The output side iron core is coupled to the vibration component and moves relative to the magnetic force generation unit based on the attractive force of the input side iron core. The vibration component transmits vibration to the hair removal unit based on the movement of the output side iron core. The electric razor has a gap formed between the hair removal part and the vibration component. The gap decreases as the load on the hair removal unit increases. The vibration component does not transmit vibration to the hair removal part when the gap exists, and transmits vibration to the hair removal part when the gap does not exist.

Claims (3)

  1. 　電気かみそりであって、
    　除毛部と、
    　前記除毛部を支持する本体部と、
    　磁力発生部および出力可動部を含む振動発生部とを備え、
    　前記磁力発生部は、コイルおよび入力側鉄心を含み、
    　前記磁力発生部は、前記コイルにより磁界を形成し、前記入力側鉄心の吸引力を前記出力可動部に作用させ、
    　前記出力可動部は、前記入力側鉄心の吸引力に基づいて前記磁力発生部に対して相対移動する出力側鉄心と、前記出力側鉄心に結合され、前記出力側鉄心の相対移動に基づいて前記除毛部に振動を伝達する振動部品とを含み、
    　前記振動発生部は、前記除毛部の負荷が大きくなるにつれて前記出力側鉄心を前記入力側鉄心に接近させるように構成される、電気かみそり。     An electric razor,
    Hair removal part,
    A body part for supporting the hair removal part;
    A vibration generating unit including a magnetic force generating unit and an output movable unit,
    The magnetic force generator includes a coil and an input side iron core,
    The magnetic force generation part forms a magnetic field by the coil, and causes the attraction force of the input side iron core to act on the output movable part,
    The output movable part is coupled to the output side iron core that moves relative to the magnetic force generation part based on the attractive force of the input side iron core, and the output side iron core, and based on the relative movement of the output side iron core Including vibration parts that transmit vibration to the hair removal part,
    The vibration generator is an electric razor configured to bring the output iron core closer to the input iron core as the load on the hair removal section increases.
  2. 　前記振動発生部は、前記除毛部の負荷が大きくなるにつれて前記除毛部と前記振動部品との間に形成された隙間が小さくなるように構成され、
    　前記振動部品は、前記隙間が存在しているとき、前記除毛部に振動を伝達せず、前記隙間が存在していないとき、前記除毛部に振動を伝達する、請求項１に記載の電気かみそり。     The vibration generating unit is configured such that a gap formed between the hair removal unit and the vibration component decreases as a load on the hair removal unit increases.
    2. The vibration component according to claim 1, wherein the vibration component does not transmit vibration to the hair removal unit when the gap exists, and transmits vibration to the hair removal unit when the gap does not exist. Electric razor.
  3. 　前記電気かみそりは、位置調整部を備え、
    　前記位置調整部は、前記振動部品に対する前記除毛部の初期位置を変化させるように構成される、請求項１または２に記載の電気かみそり。     The electric razor includes a position adjustment unit,
    The electric shaver according to claim 1 or 2, wherein the position adjustment unit is configured to change an initial position of the hair removal unit with respect to the vibration component.
PCT/JP2014/001058 2013-03-28 2014-02-27 Electric razor WO2014155970A1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111941470A (en) * 2019-05-17 2020-11-17 杭州乐秀电子科技有限公司 Electric shaver connected through magnetic attraction

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55103889A (en) * 1979-02-01 1980-08-08 Suwa Seikosha Kk Reciprocating vibration type electric razor
JP2007190312A (en) * 2006-01-23 2007-08-02 Matsushita Electric Works Ltd Hair cutter
JP2009232890A (en) * 2008-03-25 2009-10-15 Panasonic Electric Works Co Ltd Razor
JP2009254785A (en) * 2008-03-25 2009-11-05 Panasonic Electric Works Co Ltd Shaver
US20120151773A1 (en) * 2009-09-25 2012-06-21 Panasonic Corporation Electric shaver

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55103889A (en) * 1979-02-01 1980-08-08 Suwa Seikosha Kk Reciprocating vibration type electric razor
JP2007190312A (en) * 2006-01-23 2007-08-02 Matsushita Electric Works Ltd Hair cutter
JP2009232890A (en) * 2008-03-25 2009-10-15 Panasonic Electric Works Co Ltd Razor
JP2009254785A (en) * 2008-03-25 2009-11-05 Panasonic Electric Works Co Ltd Shaver
US20120151773A1 (en) * 2009-09-25 2012-06-21 Panasonic Corporation Electric shaver

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111941470A (en) * 2019-05-17 2020-11-17 杭州乐秀电子科技有限公司 Electric shaver connected through magnetic attraction

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