JP2010227225A - Electric shaver - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric shaver which is capable of achieving a stable shaving performance even in a different operation state. <P>SOLUTION: The electric shaver includes: a head driving device 25 as the second driving means which allows a reciprocating motion in the width direction Y of the electric shaver 11, a reciprocating motion in the front-to-back direction X perpendicular to the width direction Y, and a revolving motion with a shaft (a rotating shaft O1) along the vertical direction Z perpendicular to each of the directions as a center against a head part 13 having outer blades 15a to 17a; an acceleration sensor 26 as a detecting means to detect the operation state of the electric shaver 11; and a control circuit as a control means to control the head driving device 25 based on the detection signal from the acceleration sensor 26. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an electric razor for excising body hair such as wrinkles.

  As an electric shaver for scissors, for example, as shown in Patent Document 1, an inner blade that is reciprocally movable in a head portion, and a mesh-shaped outer blade that is provided so as to cover the inner blade A plurality of blade blocks are provided, and the scissors introduced into the outer blade are sandwiched between the outer blade and the inner blade that reciprocally vibrates with an electromagnetic actuator, and are cut off. In addition, the electric razor of Patent Document 1 is configured to reciprocate (vibrate) not only the inner blade but also the outer blade, and it becomes easy to introduce wrinkles and the like by the vibration of the outer blade, thereby improving the shaving performance. Is planned.

JP 2007-29123 A

  However, in the case of the electric razor as described above, the introduction rate to the outer blade such as a heel is reduced depending on the operation state of the user (the angle of the electric razor, how to move, etc.), and as a result, the shaving performance is reduced. End up. Therefore, it is desired that a stable operating state is achieved even when the user's operating state is different, and the shaving performance is stably exhibited.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an electric razor capable of obtaining stable shaving performance even if the operation state is different.

  In order to solve the above-mentioned problem, an invention according to claim 1 is provided with a gripping portion, an inner blade provided at a tip portion of the gripping portion and capable of reciprocating vibration in the width direction of the electric razor, and the inner blade. An electric shaver comprising a head portion having a blade block made of a mesh-like outer blade provided so as to cover the inner blade, and an inner blade driving means for reciprocally vibrating the inner blade, and at least the outer portion of the head portion. Reciprocating operation in the width direction (Y direction) of the electric razor with respect to the blade, reciprocating operation in the front-rear direction (X direction) perpendicular to the width direction, vertical direction (Z) orthogonal to the front-rear direction and width direction A second driving means for performing at least one of the turning motions about an axis along the direction), a detecting means for detecting an operation state of the electric shaver, and a detection signal from the detecting means Based on the second Characterized in that a control means for controlling the motion means.

  In this invention, the operation state is controlled because the movement of at least the outer blade of the head portion is displaced in the skin surface direction (direction parallel to the skin surface when the electric razor is used) according to various operation states. In addition, the introduction rate to the outer blade such as a heel is stabilized, and as a result, stable shaving performance can be obtained.

  According to a second aspect of the present invention, in the electric shaver according to the first aspect, the control means is configured to vary the drive frequency of at least the outer blade of the head unit based on a detection signal of the detection means. The driving means is controlled.

  In this invention, since the drive frequency of at least the outer blade of the head unit is variably controlled according to the operating state of the electric razor, it is possible to drive appropriately according to the operating state, and to stabilize the shaving performance suitably. It becomes possible.

  According to a third aspect of the present invention, in the electric shaver according to the first or second aspect, the control means changes the drive amplitude of at least the outer blade of the head unit based on a detection signal of the detection means. Two driving means are controlled.

  In this invention, since the drive amplitude of at least the outer blade of the head portion is variably controlled according to the operation state of the electric razor, it is possible to drive appropriately according to the operation state, and it is possible to suitably stabilize the shaving performance. It becomes possible.

  According to a fourth aspect of the present invention, in the electric shaver according to any one of the first to third aspects, the control means determines a driving speed of at least the outer blade of the head unit based on a detection signal of the detection means. The second driving means is controlled to be variable.

  In this invention, since the drive speed of at least the outer blade of the head portion is variably controlled according to the operation state of the electric razor, it is possible to drive appropriately according to the operation state, and it is possible to suitably stabilize the shaving performance. It becomes possible.

  According to a fifth aspect of the present invention, in the electric shaver according to any one of the first to fourth aspects of the present invention, the control means determines a driving acceleration of at least the outer blade of the head unit based on a detection signal of the detection means. The second driving means is controlled to be variable.

  In the present invention, since the drive acceleration of at least the outer blade of the head portion is variably controlled according to the operation state of the electric razor, it is possible to drive appropriately according to the operation state, and it is possible to suitably stabilize the shaving performance. It becomes possible.

  According to a sixth aspect of the present invention, in the electric razor according to any one of the first to fifth aspects, the detecting means detects a moving speed of the head portion as an operation state of the electric razor. Features.

  In this invention, since the movement of at least the outer blade of the head portion in the skin surface direction is controlled according to the moving speed of the head portion, stable shaving performance even when the moving speed of the head portion is different when using an electric razor. Can be obtained.

  According to a seventh aspect of the present invention, in the electric razor according to any one of the first to sixth aspects, the detection means detects a moving acceleration of the head portion as an operation state of the electric razor. Features.

In the present invention, since the movement of at least the outer blade of the head portion displaced in the vertical direction is controlled according to the movement acceleration of the head portion, the shaving performance can be preferably stabilized.
The invention according to claim 8 is the electric razor according to any one of claims 1 to 7, wherein the detection means detects a contact pressure that the outer blade receives from the skin as an operation state of the electric razor. It is characterized by doing.

  In this invention, since the operation of displacing at least the outer blade of the head portion in the skin surface direction is controlled according to the contact pressure that the outer blade receives from the skin, stable shaving performance can be obtained even if the contact pressure is different. It becomes.

  According to a ninth aspect of the present invention, in the electric shaver according to the eighth aspect, the detecting means includes a suspension spring coupled to the head portion, the outer blade and the inner blade as the contact pressure. It is characterized by detecting at least one amount of displacement or stress applied to at least one of them.

  In this invention, it becomes possible to detect suitably the contact pressure which an outer blade receives from skin.

  Therefore, according to the above-described invention, it is possible to obtain a stable shaving performance even if the operation state is different.

The perspective view for demonstrating schematic structure of the electric shaver of this embodiment. The top view which shows the upper part of the head part of an electric razor. The block diagram for demonstrating the electric structure of an electric razor. (A) (b) (c) The schematic diagram for demonstrating another example structure.

DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, an embodiment of the invention will be described with reference to the drawings.
As shown in FIG. 1, the electric shaver 11 for scissors according to the present embodiment includes a grip portion 12 that can be gripped by a user, and a head portion 13 provided on the top of the grip portion 12. The head unit 13 is configured to be able to perform reciprocating motions in the front-rear direction X (shaving direction) and the width direction Y and turning reciprocating motions about the axis along the vertical direction Z. Yes. In addition, the front-back direction X, the width direction Y, and the up-down direction Z of the electric shaver 11 are directions orthogonal to each other.

  The head portion 13 includes blade blocks 15 to 17, and the blade blocks 15 to 17 are a pair of mesh blade blocks 15 and 16 each having a mesh outer blade 15a and 16a, and a slit-shaped outer blade disposed therebetween. The three blade blocks 15 to 17 are configured as a so-called three-blade electric razor 11 that is arranged in parallel in the front-rear direction X of the upper portion of the head portion 13.

  Inside the head portion 13, there are inner blades 15b, 16b provided corresponding to the mesh outer blades 15a, 16a and an inner blade 17b provided corresponding to the slit-shaped outer blade 17a (see FIGS. 2 and 3). An electric inner blade driving device 21 (inner blade driving means) for reciprocally vibrating each in the width direction Y is provided. The inner blade driving device 21 is a control circuit as a control unit based on the power supply from the battery 23 (see FIG. 4) in the gripping portion 12 based on the ON operation of the operation switch 22 provided on the outer surface of the gripping portion 12. The drive power generated at 24 is supplied to operate. When the inner blades 15b, 16b, and 17b vibrate by the inner blade driving device 21, the scissors introduced into the outer blades 15a to 17a are excised by being sandwiched between the vibrating inner blades 15b, 16b, and 17b.

  Further, inside the head portion 13, a reciprocating motion of the head portion 13 around the rotation axis O <b> 1 in the vertical direction Z shown in FIG. 2, a reciprocating motion in the front-rear direction X (front-rear vibration), and a width A head driving device 25 as an electric second driving means that performs a reciprocating operation (left-right vibration) in the direction Y and an acceleration sensor 26 as a detecting means are provided.

  The head driving device 25 operates by being supplied with power from the battery 23 (see FIG. 3) based on control by the control circuit 24. When the head unit 13 performs at least one of the above-described three operations (longitudinal vibration, left-right vibration, and turning vibration) by driving the head driving device 25, the outer blades 15a to 17a are in the skin surface direction (use of the electric shaver 11). In the state, it is displaced in a direction parallel to the skin surface), so that wrinkles and the like are easily introduced into the outer blades 15a to 17a, and the shaving performance is improved.

  The acceleration sensor 26 can detect at least the acceleration of the head portion 13 in the front-rear direction X (shaving direction), and outputs the detected value (detection signal) to the control circuit 24. The control circuit 24 calculates the moving speed (operation speed) of the head unit 13 from the detected value (acceleration) detected by the acceleration sensor 26, and controls the operation of the head driving device 25 based on the calculated value. In the present embodiment, the control circuit 24 controls the operation of the head driving device 25 so as to vary the driving frequency of the longitudinal and lateral vibrations of the head unit 13 and the driving frequency of the reciprocating motion based on the moving speed of the head unit 13. .

  As a result, when the electric shaver 11 is used, for example, when the head unit 13 is moved quickly, the driving frequency of the head unit 13 is increased and decreased, and the vibration frequency of the head unit 13 is increased, and the head unit 13 is moved slowly. In some cases, it is possible to perform control so as to lower the driving frequency of the head unit 13 in the longitudinal and lateral vibrations and the reciprocating motion. Thereby, even in an operation state in which the moving speed of the head portion 13 is fast, the opportunity to introduce the scissors and the like into the outer blades 15a to 17a by the back and forth vibration of the head portion 13 and the reciprocating motion of the head is stabilized, and as a result, shaving The performance is stabilized. Further, when the head unit 13 is moved slowly, it is not necessary to drive the head unit 13 at a high frequency, and the user may feel discomfort due to friction. A suitable operation of the head unit 13 is possible by lowering the driving frequency of the reciprocating operation.

Next, characteristic effects of the present embodiment will be described.
(1) In this embodiment, with respect to the head part 13 having the outer blades 15a to 17a, the reciprocating operation of the electric shaver 11 in the width direction Y, the reciprocating operation in the front-rear direction X orthogonal to the width direction Y, and A head drive device 25 as a second drive means for performing a turning operation around an axis (rotation axis O1) along the vertical direction Z perpendicular to each direction, and an operation state of the electric shaver 11 is detected. An acceleration sensor 26 as detection means and a control circuit 24 as control means for controlling the head driving device 25 based on a detection signal from the acceleration sensor 26 are provided. For this reason, since the movement of the outer blades 15a to 17a in the skin surface direction (direction parallel to the skin surface when the electric razor is used) is controlled according to various operation states, the operation state is different. The rate of introduction into the outer blades 15a to 17a is stabilized, and as a result, stable shaving performance can be obtained.

  (2) In the present embodiment, the control circuit 24 controls the head driving device 25 so as to vary the driving frequency of the head unit 13 based on the detection signal of the acceleration sensor 26, so that appropriate driving according to the operating state is possible. Thus, the shaving performance can be suitably stabilized.

  (3) In this embodiment, the movement speed (operation speed) of the head unit 13 is detected as the operation state of the electric razor 11, and the operation in the skin direction of the head unit 13 according to the movement speed (front-rear and left-right vibration) Therefore, stable shaving performance can be obtained even when the moving speed of the head portion 13 is different when the electric razor 11 is used.

In addition, you may change embodiment of this invention as follows.
In the above embodiment, the acceleration sensor 26 is provided in the head unit 13. However, for example, the acceleration sensor 26 may be provided in the grip unit 12.

In the above embodiment, the acceleration sensor 26 is used as the detection unit, and the movement speed is calculated from the detection value. However, for example, a speed sensor may be used as the detection unit.
In the above embodiment, based on the operating state of the electric razor 11 (moving speed of the head unit 13), the driving frequency of the head unit 13 for front and rear and left and right vibrations and the driving frequency of the turning reciprocating operation are variably controlled. For example, the drive amplitude of the front / rear and left / right vibrations of the head unit 13 and the drive amplitude of the reciprocating motion may be variably controlled. In such a configuration, for example, when the head unit 13 is moved quickly, the driving amplitude of the front and rear of the head unit 13 and the left and right vibration and the swivel reciprocating operation is increased, and when the head unit 13 is moved slowly, the front and rear of the head unit 13 and Control that lowers the drive amplitude of the left-right vibration and the turning reciprocating motion is possible, and substantially the same effect as the above embodiment can be obtained.

  Further, based on the moving speed of the head unit 13, the longitudinal and lateral vibration speeds of the head unit 13 and the speed of the reciprocating motion may be variably controlled. In such a configuration, for example, when the head unit 13 is moved fast, the driving speed of the head unit 13 is increased and decreased, and when the head unit 13 is moved slowly, Control that lowers the drive speed of the left-right vibration and the turning reciprocating motion is possible, and substantially the same operational effects as in the above embodiment can be obtained.

  Further, based on the moving speed of the head section 13, the driving acceleration of the head section 13 in the longitudinal and lateral vibrations and the driving acceleration (starting speed) of the turning reciprocating motion may be variably controlled. In such a configuration, for example, when the head unit 13 is moved fast, the front and back of the head unit 13 and the drive acceleration of the left-right vibration and the turning reciprocating operation are increased, and when the head unit 13 is moved slowly, the front and back of the head unit 13 and Control that lowers the left and right vibration and the driving acceleration of the reciprocating motion of the turn is possible, and it is possible to obtain substantially the same operation and effect as the above embodiment.

  In the above embodiment, the control circuit 24 calculates the moving speed of the head unit 13 from the detection value of the acceleration sensor 26, and controls the operation of the head unit 13 based on the moving speed. The operation control of the head unit 13 may be performed based on the movement acceleration of the head unit 13. With this configuration, it is possible to obtain substantially the same operational effects as in the above embodiment.

  Further, for example, as shown in FIGS. 4A, 4B, and 4C, a detection sensor 31 (detection means) for detecting the contact pressure that the outer blades 15a to 17a receive from the skin as the operation state of the electric razor 11 is provided. It may be configured that the operation of the head unit 13 is controlled based on the contact pressure. 4A, 4B, and 4C, only the outer blade 15a and the inner blade 15b among the three outer blades 15a to 17a and the inner blades 15b to 17b are shown for convenience of explanation. In FIG. 4A, the detection sensor 31 detects the displacement in the vertical direction Z of the head suspension spring 32 connected to the head unit 13 or the stress in the vertical direction Z applied to the head suspension spring 32 as the contact pressure. The control circuit 24 controls the operation of the head unit 13 based on the detection signal.

  According to such a configuration, for example, the contact pressure that the outer blades 15a to 17a receive from the skin is low (that is, the displacement amount in the vertical direction Z of the head suspension spring 32 or the stress in the vertical direction Z applied to the head suspension spring 32). When the contact pressure is high, the operation control is performed to increase the driving frequency (or the driving amplitude, the driving speed, and the driving acceleration) of the head portion 13 in the longitudinal and lateral vibrations and the reciprocating reciprocating motion. It becomes possible. If the contact pressure is low, the operation of the head unit 13 becomes unstable, and the effect of introducing wrinkles or the like due to the operation of the head unit 13 may not be sufficiently exhibited. Thus, the operation of the head unit 13 is stabilized, and as a result, the shaving performance can be stabilized. On the other hand, when the contact pressure is high, the contact pressure of the outer blades 15a to 17a can be reduced by controlling the drive frequency of the head portion 13 to be small. Further, since the detection sensor 31 detects the displacement amount of the head suspension spring 32 connected to the head portion 13 or the stress applied to the head suspension spring 32 as the contact pressure, the contact received by the outer blades 15a to 17a from the skin. It becomes possible to detect a pressure suitably.

  In FIG. 4B, the detection sensor 31 applies the displacement in the vertical direction Z of the outer blade suspension spring 33 connected to the outer blades 15a to 17a or the outer blade suspension spring 33 as the contact pressure. The stress in the vertical direction Z is detected, and the control circuit 24 controls the operation of the head unit 13 based on the detection signal. 4C, the detection sensor 31 applies the displacement in the vertical direction Z of the inner blade suspension spring 34 connected to the inner blades 15b to 17b or the inner blade suspension spring 34 as the contact pressure. The stress in the vertical direction Z is detected, and the control circuit 24 controls the operation of the head unit 13 based on the detection signal. Also in the configuration shown in FIGS. 4B and 4C, it is possible to obtain substantially the same operational effects as the configuration shown in FIG. The suspension springs 32 to 34 are for returning the head portion 13, the outer blades 15a to 17a or the inner blades 15b to 17b displaced in the vertical direction Z to the initial positions.

  Further, a detection sensor (detection means) for detecting the distance between the outer blades 15a to 17a and the skin is provided as an operation state of the electric razor 11, and the operation of the head unit 13 is performed based on the distance detected by the detection sensor. You may comprise so that control may be made. Also with such a configuration, it is possible to obtain substantially the same operational effects as in the above embodiment.

  Further, a detection sensor (detection means) that electrically detects the contact of the outer blades 15a to 17a with the skin as an operation state of the electric razor is provided, and the contact of the outer blades 15a to 17a with the skin is determined based on the contact determination of the detection sensor. You may comprise so that operation | movement control of the head part 13 may be made in the direction improved. Also with such a configuration, it is possible to obtain substantially the same operational effects as in the above embodiment.

  Further, a detection sensor (detection means) for detecting the temperature distribution of the outer blades 15a to 17a is provided as an operation state of the electric razor, and the operation of the head unit 13 is controlled based on the temperature distribution detected by the detection sensor. You may comprise as follows. The temperature distribution of the outer blades 15a to 17a has a correlation with the contact state of the outer blades 15a to 17a with the skin (for example, the temperature distribution is also in a state where the outer blades 15a to 17a are in contact with the skin substantially uniformly. Therefore, it is possible to improve the adhesion of the outer blades 15a to 17a to the skin by controlling the operation of the head unit 13 in a direction in which the contact state of the outer blades 15a to 17a with the skin is improved. Become.

  In the above embodiment, the entire head unit 13 including the outer blades 15a to 17a is configured to perform the back and forth vibration and the swivel reciprocating motion. However, for example, only the outer blades 15a to 17a are front and rear and You may comprise so that a left-right vibration and turning reciprocation may be performed.

In the above embodiment, the head unit 13 is configured to be able to perform back-and-forth and side-to-side vibrations and swivel reciprocating operations. However, the head unit 13 is configured to enable only one or two of these three operations. Also good. Further, in addition to the above three operations, a forward / backward tilting operation (front / rear turning operation), a left / right tilting operation (left / right turning operation), or a reciprocating operation in the vertical direction Z may be possible.
In the above embodiment, the three blade blocks 15 to 17 are configured as a so-called three-blade electric shaver 11 arranged in parallel in the front-rear direction X. However, the present invention is not particularly limited to this. For example, one blade A single blade constituted only by blocks may be used, two blade blocks may form two blades, or four or more blade blocks may be arranged in parallel.

  -Although it applied to the electric razor 11 for wrinkles in the said embodiment, you may apply to the electric razor which cuts off hair other than a wrinkle.

  DESCRIPTION OF SYMBOLS 11 ... Electric razor, 12 ... Grasp part, 13 ... Head part, 15-17 ... Blade block, 15a-17a ... Outer blade, 15b-17b ... Inner blade, 21 ... Inner blade drive device as inner blade drive means, 24 DESCRIPTION OF SYMBOLS ... Control circuit as control means, 25 ... Head drive device as 2nd drive means, 26 ... Acceleration sensor as detection means, 31 ... Detection sensor as detection means, 32-34 ... Suspension spring, X ... Front-back direction, Y: width direction, Z: vertical direction.

Claims (9)

A gripping part;
A head portion having an inner blade provided at a tip portion of the gripping portion and capable of reciprocating vibration in the width direction of the electric razor, and a blade block comprising a mesh-like outer blade provided so as to cover the inner blade; ,
In an electric shaver provided with an inner blade driving means for reciprocatingly vibrating the inner blade,
Reciprocating operation of the electric shaver in the width direction (Y direction), reciprocating operation in the front-rear direction (X direction) perpendicular to the width direction, front-rear direction and width direction of at least the outer cutter of the head portion Second driving means for causing at least one of the turning motions about an axis along the vertical direction (Z direction) orthogonal to
Detection means for detecting an operation state of the electric razor;
An electric shaver comprising control means for controlling the second drive means based on a detection signal from the detection means. The electric razor according to claim 1,
The electric razor characterized in that the control means controls the second driving means so as to vary at least the driving frequency of the outer blade of the head portion based on a detection signal of the detecting means. The electric shaver according to claim 1 or 2,
The electric shaver according to claim 1, wherein the control means controls the second driving means so as to vary a driving amplitude of at least the outer blade of the head portion based on a detection signal of the detecting means. In the electric shaver according to any one of claims 1 to 3,
The electric razor characterized in that the control means controls the second driving means so as to vary at least the outer blade driving speed of the head portion based on a detection signal of the detecting means. In the electric shaver according to any one of claims 1 to 4,
The electric razor characterized in that the control means controls the second driving means so as to vary at least the driving acceleration of the outer blade of the head portion based on a detection signal of the detecting means. In the electric shaver according to any one of claims 1 to 5,
The electric razor according to claim 1, wherein the detecting means detects a moving speed of the head portion as an operation state of the electric razor. In the electric shaver according to any one of claims 1 to 6,
The electric razor according to claim 1, wherein the detecting means detects a movement acceleration of the head portion as an operation state of the electric razor. In the electric shaver according to any one of claims 1 to 7,
The electric razor according to claim 1, wherein the detecting means detects a contact pressure that the outer blade receives from the skin as an operation state of the electric razor. The electric shaver according to claim 8,
The detection means detects, as the contact pressure, at least one displacement amount of a suspension spring connected to the head portion, the outer blade and the inner blade, or a stress applied to at least one of them. An electric razor characterized by.

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