JP2001334076A - Electric shaver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric shaver which gives an optimum driving speed of the inner blade for each of the two operation modes of a mode for good skin feeling and a mode for good blade sharpness. SOLUTION: The electric shaver has a blade unit 200 having an outer blade 14 which unit is floatable against its main body 301. The fixing height of the blade unit 200 is controllable. The shaver has an inner blade driving control means 302 which controls the driving speed of the inner blade 4 according to the fixing height of the blade unit 200.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric shaver in which a blade unit having an outer blade can be floated with respect to a main body and the height of the blade unit can be adjusted.

[0002]

2. Description of the Related Art Conventionally, an electric razor provided with a float mechanism on an outer blade has a function of imparting elasticity to the outer blade by means of a float. Good and high adhesion between the skin and the outer blade can reduce the unshaved residue. In addition, the user adjusts the mounting height of the outer blade for each user's darkness of the beard, weakness of the skin, how to shave and press, and optimizes the floating force of the outer blade and the pushing force of the inner blade There is also an electric razor to adjust the value.

[0003]

However, in the conventional electric razor, the driving load is changed by changing the mounting height of the outer blade, so that the rotation speed of the inner blade is lowered and the sharpness is deteriorated. Also, there is a problem that the rotation speed is increased and the skin contact becomes worse.

In an electric razor in which the mounting height of the outer blade can be changed, when the height of the outer blade is at the upper position, the mode is used by a person with weak skin or a thin beard. The push-up force of the facing blade is small, and the rotating floor is higher than when the outer blade is below, and conversely, people who have a strong beard or want to shave deeply want to use powerfully at a higher rotation speed In the mode in which the blade is at the lower position, the number of revolutions is reduced, and there is a problem that the driving speed of the inner blade is reduced and the sharpness is deteriorated.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and has as its object to adjust the drive speed of the inner blade in conjunction with the mounting height of the blade unit. By changing the driving load as in the past, the driving speed of the inner blade decreases and the sharpness deteriorates, or the driving speed increases and the skin contact does not deteriorate, the mode to improve the skin contact, An object of the present invention is to provide an electric razor capable of obtaining an optimum inner blade driving speed in each of the modes for improving sharpness.

[0006]

According to the present invention, a blade unit 20 having an outer blade 14 is provided.
In the electric razor in which 0 can float with respect to the main body 301 and the mounting height of the blade unit 200 can be adjusted, the inner blade that adjusts the driving speed of the inner blade 4 in conjunction with the mounting height of the blade unit 200 It is characterized in that the drive control means 302 is provided. With this configuration, even if the drive load changes, the drive speed of the inner blade 4 decreases and the sharpness deteriorates, or the drive speed increases and the skin contact increases. Can be adjusted so that it does not deteriorate.

Further, it is preferable to include a position detecting means 303 for detecting the position of the blade unit 200 and a means for controlling the motor 3 in conjunction with the position of the blade unit 200. By interlocking the position detection and the control of the motor 3, the adjustment of the driving speed of the inner cutter 4 becomes accurate.

The position detecting means 303 of the blade unit 200 preferably detects the position of the operating means 304 for moving the blade unit 200 up and down.

The operating means 304 for moving the blade unit 200 up and down has an operating portion disposed outside the main body 301 and a first connecting portion connected to a member for moving the blade unit 200 up and down on the back surface thereof. And blade unit 2
And a second connecting portion connected to a portion for detecting the mounting height of 00.

Preferably, the position detecting means 303 comprises a single switch 8 for detecting a plurality of positions of a member coupled to move up and down in association with the blade unit 200.

The main body 301 has a waterproof structure, and the operation of the operating means 304 disposed outside the main body 301 is controlled by the main body 3.
It is preferable that the rotating shaft 72 is provided on a member to be transmitted to the inside of the main body 01, and the space between the rotating shaft 72 and the bearing of the main body 301 is sealed by an O-ring. The reliability of waterproofing during the period increases.

In a reciprocating electric shaver, it is preferable to adjust the drive speed of the inner cutter 4 by adjusting the amplitude of the inner cutter 4.

In a rotary electric shaver, it is preferable that the driving speed of the inner cutter 4 is adjusted by controlling the rotation speed of the inner cutter 4.

The present invention also relates to an electric shaver in which the blade unit 200 having the outer blade 14 can float with respect to the main body 301 and the mounting height of the blade unit 200 can be adjusted. Irrespective of this, the inner blade drive control means 302 for controlling the drive speed of the inner blade 4 to be constant is provided. With such a configuration, the mounting height of the blade unit 200 is increased. The problem that the skin contact becomes worse when the camera is in a low position and the sharpness becomes poor when the camera is in a low position can be eliminated.

It is preferable that the drive speed of the inner blade 4 is controlled to be constant regardless of the mounting height of the blade unit 200 by detecting the drive speed of the motor 3. It is possible to easily control the driving speed of the motor 3 to be constant by a method of detecting an electromotive voltage or the like.

The inner blade drive control means 302 lowers the driving speed of the inner blade 4 when the mounting height of the blade unit 200 is high, and when the mounting height of the blade unit 200 is low. It is preferable to adjust the driving speed of the inner blade 4 so as to be faster. In this case, when the mounting height of the blade unit 200 is at a high position, the skin contact becomes better, and when it is at a low position,
The sharpness becomes better.

Preferably, the position detecting means 303 of the blade unit 200 detects the position of a member arranged to move up and down in conjunction with the blade unit 200.

The position detecting means 303 of the blade unit 200 is provided with a light-shielding portion 139a on a member which moves up and down in conjunction with the blade unit 200, and the light from the light emitting element N is blocked by the light-shielding portion 139a. Preferably, movement is detected.

The position detecting means 303 of the blade unit 200 is provided by a member interlocking with the blade unit 200.
It is preferable to include a plurality of switches F and G that are N / OFF.

Preferably, the means for controlling the motor comprises a variable resistor 310 for controlling the current flowing to the motor 3 in conjunction with the mounting position of the blade unit 200.
In this case, the drive speed of the motor 3 can be easily adjusted by changing the resistance value of the variable resistor 310.

It is preferable that the variable resistor 310 is arranged in series with the motor 3.

Further, it is preferable to have a member which is coupled so as to move up and down in conjunction with the blade unit 200, and the member itself constitutes the variable resistor 310.

It is preferable that a part of the operating means 304 for moving the blade unit 200 up and down forms a variable resistor 310.

It is preferable that a rotary volume K be formed coaxially with the rotary operation means 304.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on embodiments shown in the accompanying drawings.

FIGS. 1 to 9 show an example of an electric shaver.
Inside the cylindrical main body housing 1, a storage battery 2 and a motor 3 such as a linear motor, and a storage battery 2 and a motor 3
And a base 5 for holding the circuit board 26. The motor 3 has a driver 1 on its upper part for transmitting a driving force to the inner blade 4.
2 is provided. The upper opening of the main body housing 1 is closed by the blade mount 6 on the main body 301 side, and the lower opening is closed by the lower cover 7.

As shown in FIGS. 7 and 8, on the upper part of the blade mount 6 on the main body 301 side, the blade mount 11 is fixed using screws. The upper and lower blade mounts 6 and 11 each have an opening, the driver 12 of the motor 3 penetrates the opening, and the O-ring portion 48 inside the driver waterproof rubber 13 is
Of the driver waterproof rubber 13 is sandwiched between the upper and lower blade mounts 6 and 11.

The blade mount 6 on the main body 301 side and the main body housing 1 sandwich an O-ring 28 integrally formed with the blade mount 6 at an intermediate portion thereof, and a front panel 29 on the upper side.
(FIG. 4) and the upper ring 27. The lower cover 7 waterproofs the inside of the main body housing 1 by integrally molding rubber on an outer peripheral portion and a screw hole portion which are mating surfaces with the main body housing 1 or assembling the O-ring therebetween.

A push-type switch 8 penetrating through an opening of a front panel 29 is provided on the front surface of the main housing 1.
(FIG. 4) is provided with a switch waterproof rubber 9 interposed therebetween, and a trimmer unit 10 (FIG. 5) is slidably disposed on the back surface of the main body housing 1.

The driver 12 is provided with an inner blade push-up spring 22 together with a spring stopper 40. The inner blade 4 is always pressed against the outer blade 14 (FIG. 6) by the elasticity of the inner blade push-up spring 22. I have. A trimmer driving rod 115 and a slit blade driving rod 51a (FIG. 5) are attached to the side surface of the driving portion of the driver 12, and the trimmer unit 10 and the slit blade 44 are respectively mounted.
(FIG. 6).

As shown in FIG. 6, the head portion includes two front and rear net blade units 80, 80 and a central slit blade 4 as shown in FIG.
4 and a blade frame 18 for supporting the blade unit 18 in a free-floating manner. The blade frame 18 is provided with engaging portions for detachable engagement with the main body 301 at both ends in the longitudinal direction. It is prepared in several places.

At the upper end of the blade mount 6 on the main body 301 side, FIG.
As shown in the figure, an upper blade mounting base 11 is provided, and projections 23 having a shape along the outer peripheral surface of the blade frame 18 are provided at the left and right ends on the upper side of the blade mounting base 11. A vertical notch 79 is provided between the protrusions 23, and a total of 4
An opening 37 is provided between the protrusions 23 before and after the book protrusion 23.
0 is provided.

Next, a mechanism for adjusting the mounting height of the blade unit 200 will be described.

At the position surrounded by the lower outer periphery of the blade mounting base 6 on the main body 301 side and the inner periphery of the front panel 29, as shown in FIG. It is arranged to be movable. A track-like long hole 24 that is long in the vertical direction is provided at both ends of the switching plate 21, and the float round boss 30 provided on the slide hook 25 is fitted into the long hole 24. The slide hook 25 is provided with an elastic leg portion 34 having elasticity so as not to impair the floatability. The fixed connection between the slide hook 25 and the switching plate 21 is performed by a round boss 33 of the slide hook 25 that penetrates a hole 32 provided in the center of the switching plate 21.

The slide hook 25 penetrates through the opening 370 of the blade mount 11 and protrudes from the upper surface.
And a locking hook portion 31 for engaging with the engaging portion 20 of FIG.

As a mechanism for sliding the switching plate 21 in the vertical direction, a dial 53 serving as an operation section of the operation means 304 is used. The dial 53 includes an engagement protrusion 6 a protruding from the blade mount 6 on the main body 301 side and the front panel 29.
Is positioned in the circular hole 77 (FIG. 4) formed by the concave portion.

The engaging projection 6a of the blade mount 6 on the main body 301 penetrates through the center hole 58 (FIG. 7) of the dial 53. A screw hole 6b is provided at the center of the engagement protrusion 6a. A holding plate 61 having a notch 60 formed on the surface of the dial 53 is loosely engaged, and a screw 62 is inserted through the holding plate 61 and the hole 59 of the dial 53 and screwed into the engaging projection 6 a of the blade mounting base 6 to hold the holding member. Fixing the plate 61 to the blade mount 6,
The dial 53 can be rotated by hand around the screw 62. On the surface of the dial 53, "power
Indication such as “rful”, “normal”, and “mild” is given. When the dial 53 is rotated, the holding plate 61 is fixed, and the above-mentioned display can be seen from the notch 60, so that the set position of the blade unit 200 can be known. Reference numeral 63 in FIG. 8 denotes a hidden plate for the screw 62.

As shown in FIG. 10, a cam groove 52 eccentric from the center of rotation is provided on the inner side of the rotary type dial 53. The dial 53 is rotatably disposed on the blade mount 6 through an opening in the front panel 29.

The coupling with the switching plate 21 is performed by using the round boss 33 of the slide hook 25 as a cam shaft and slidably coupling with the eccentric cam groove 52 on the back surface of the dial 53 in a U-shape. The switching plate 21 whose movement in the left-right direction is restricted by this can only move up and down. By turning the dial 53, the distance between the cam groove 52 on the back surface and the center of rotation changes. The round boss 33 of the slide hook 25 serving as a cam shaft connected to the cam groove 52 is
2, the eccentricity of the cam groove 52 causes a vertical force to be transmitted to the switching plate 21 so that the switching plate 21 is slid in the vertical direction.

In this manner, by rotating the dial 53, the blade frame 18 can be moved up and down via the slide hook 25, and the mounting height of the blade unit 200 can be adjusted vertically with respect to the inner blade 4. Is what you can do.

The back surface of the dial 53 is shown in FIGS.
As shown in FIG.
And is fitted to the round boss 71 (second connecting portion) of the switch cam 70. The switch cam 70 is an O-ring 7
3 (FIG. 8), a round hole 380 provided in the blade mount 6
(FIG. 8) is rotatably supported by the switch cam 7.
A cam lever 75 disposed inside the main body 301 is provided with an engagement rib 74 at the tip of the rotation shaft 72 (FIG. 12).
The engaging rib 74 is engaged with the engaging groove 76 (FIG. 8). The operation of the dial 53 outside the main body 301 is transmitted to the cam lever 75 inside the main body 301 via the rotary shaft 72 of the switch cam 70, and has a structure in which the rotary shaft 72 and the O-ring 73 are waterproofed. This improves the reliability of waterproofing.

As shown in FIG. 8, a switch holder 381 is held on an outer shell 79 of the motor 3 by an engaging portion 82. A cam lever 75, a switching lever 83, a switching switch 85, and a switch cover 88 are attached to the switch holder 381. The cam lever 75 is rotatably supported, and the switching lever 83 is vertically slidably supported. 86 (FIG. 13A) is fixed by a switch holder 381 and a switch cover 88. The rotating motion transmitted to the inside of the main body 301 is converted into a reciprocating sliding motion by the cam lever 75 and the switching lever 83. The engagement groove 84 of the switching lever 83 is engaged with the switch portion 87 of the switching switch 85, and the switching lever 8
The switch is switched by the reciprocating sliding motion of 3.

The change-over switch 85 is provided as shown in FIG.
(B) In any of the three states of (c), the switch 87
Is detected, the signal is transmitted to the circuit board 26 through the conductive portion 89, and is fed back to the current flowing through the motor 3, so that the amplitude of the inner blade 4 is controlled.

As described above, the operation of the dial 53 is transmitted to the changeover switch 85 capable of detecting a plurality of positions in conjunction with the adjustment of the mounting height of the blade unit 200 by the operation of the dial 53. 200 positions are detected. Then, the detected blade unit 20
The motor 3 is controlled based on the zero position to adjust the amplitude of the inner blade 4. FIG. 27 shows a block diagram of this example.

However, the drive speed of the inner blade 4 can be adjusted in conjunction with the mounting height of the blade unit 200,
Even if the driving load changes, the driving speed of the inner blade 4 does not decrease and the sharpness does not deteriorate, and the driving speed does not increase and the skin contact does not deteriorate. The optimum driving speed of the inner blade 4 can be obtained in each of the modes. As a result, it is possible to eliminate the loss of skin touch and sharpness.

FIGS. 1 to 9 show an embodiment in which the motor 3 is used. The drive speed of the inner blade 4 is adjusted by changing the amplitude of the motor 3, but a rotary motor is used. In such a case, the drive speed of the inner cutter 4 can be adjusted by changing the motor speed.

FIG. 14 is a graph comparing the difference in the driving speed of the inner blade 4 with the presence or absence of the drive speed adjusting function of the inner blade 4 when the mounting height of the blade unit 200 changes. In the conventional example no drive speed adjustment function, as indicated by line L _1, originally blade unit is a mode using a thin person with sensitive skin people or beard 200
When the mounting height of the inner blade 4 is at a high position, the driving speed of the inner blade 4 is increased, and the skin contact tends to be deteriorated. On the other hand, in the mode where the blade unit 200, which is originally used by a person with a strong beard or who wants to shave deeply and wants to use it more powerfully at a higher driving speed, is at a lower position, the driving speed of the inner blade 4 tends to decrease and the sharpness tends to deteriorate. Was.

Therefore, as shown by the line L ₂ in FIG. 14, the inner blade 4 is linked with the mounting height of the blade unit 200.
By controlling the driving speed of the blade unit 200 to control the driving speed to be constant at any mounting height, when the mounting height of the blade unit 200 is at a high position, the skin contact becomes poor or when the blade unit 200 is at a low position. It is possible to eliminate the adverse effect that the sharpness sometimes deteriorates.

Next, as another means for keeping the driving speed of the inner blade 4 constant irrespective of the mounting height of the blade unit 200, the driving speed of the motor 3 is detected and the driving speed of the motor 3 is kept constant. There is also a method. 1 to 9
In the present embodiment using the motor 3 shown in FIG. 5, the drive speed of the motor 3 can be controlled to be constant by detecting the back electromotive voltage by driving the motor, thereby keeping the drive speed of the inner cutter 4 constant. be able to.

Further, as shown by line L ₃ of Figure 14,
When the mounting height of the blade unit 200 is at a high position, the inner blade 4
May be adjusted so that the driving speed is low, and when the position is low, the driving speed is high. In this case, when the attachment height of the blade unit 200 is at a high position, the skin contact becomes better, and when it is at a low position, the sharpness can be improved.

Referring to FIGS. 15 to 26, still another embodiment of the present invention will be described. Inside the cylindrical main body housing 1, a storage battery 102 and a motor 103 such as a linear motor, a base 105 for holding the storage battery 102, the motor 3, and a circuit board 126 are stored. Motor 3
A driving element 1 for transmitting a driving force to the inner blade 104
12 are provided.

In a state where the lower part of the motor 103 and the upper part of the base 105 are connected, the opening is closed by the blade mount 106 from the upper side of the main body housing 101 and the lower cover 107 from the lower side, and fixed by screws 127 and 141. You. The upper part of the main body housing 101 is closed by a blade mount 106, and the lower part of the main body housing 101 is closed by an opening with a lower cover 107.

A switch 108 and a switch base 109 for slidably engaging the switch 108 with the main body housing 101 are provided on the front surface of the main body housing 101, and a trimmer 110 is slidably disposed on the rear surface of the main body housing 101. It is assumed to be a configuration provided. A rubber presser plate 111 is fixed to the upper portion of the blade mount 106 using screws 127.

As shown in FIG. 20, the blade mounting base 106 and the rubber holding plate 111 have openings, respectively. The driver 112 of the motor 3 passes through the openings, and
13 is fitted into the waterproof seal portion 149 of the driver 112, and the outer peripheral portion 1 of the driver waterproof rubber 113 is fitted.
The structure is such that 50 is sandwiched between the blade mount 106 and the rubber pressing plate 111.

The blade mount 106 and the body housing 10
1 is fixed with an O-ring 128 sandwiched in the middle thereof and an upper ring with the front panel on the upper side. The lower cover 107 is formed by integrally molding rubber on an outer peripheral portion and a screw hole portion, which are mating surfaces with the main body housing 101, and an O-ring 123.
And the main body housing 101 is assembled.
The inside can be waterproof.

The driver 112 has an inner blade push-up spring 132.
(FIG. 21) is provided together with a spring stopper 140, so that the inner blade 4 can always be pressed against the outer blade 14 by its elasticity, and a trimmer driving rod 115 and a slit are provided on the side surface of the driving portion of the driver. The blade drive rod 151 is attached so that the drive can be transmitted to the trimmer blade and the slit blade, respectively.

The head portion is constituted by a blade frame comprising two net blade cassettes on the front and rear outer sides, a slit blade unit at the center, and a holding cassette 118 for supporting these blade units in a floatable manner.

The net blade unit is integrated by attaching a net cover to an outer blade 114 and an inner cassette 116 to which the outer blade 114 is fixed by heat sealing.

The slit blade unit includes a slit outer blade 14.
4, a slit inner blade 152, a slit joint 143, a slit push-up spring 145, and a slit holding member 146. The slit holding member 146 is floatably held by a holding cassette 118 via a slit float spring 147.

The net blade unit includes a holding cassette 118
By engaging the engagement groove 165 with the rib 166 of the net cover 142, it is held in a freely floating manner.

In the slit blade unit, the hook 168 provided on the slit holding member 146 and the projection 167 provided on the inner surface of the holding cassette 118 are engaged, and the slit push-up spring 1 is engaged.
45, the holding cassette 11
8 is held so as to float freely. This holding cassette 11
8 is provided with two engaging hooks 120 for attaching and detaching to and from the main body at both ends in the longitudinal direction.

On the main body side, a switching plate 121 is disposed at a position surrounded by the outer periphery of the blade mount 106 and the inner periphery of the main body housing 101 so as to be movable in the vertical direction. FIG. 28 shows a block diagram of this example.

On the body housing 1 side, a switching plate (slide plate) 121 is vertically disposed at a position surrounded by the outer periphery of the blade mount 6 and the inner periphery of the front panel 29. The switching plate 121 has a substantially U-shape, and its end protrudes upward, and the projection 169 protrudes from the upper surface through a hole 170 provided in the blade mount 106.
A locking hole 122 for engaging with the engaging hook 120 of the holding cassette 118 is provided.

Around the projection 169 of the switching plate 121,
A ring 133 made of an elastic material such as rubber for preventing intrusion of shavings is attached. Switching plate 121
An engaging hole 171 for attaching the rack member 136 is provided in the vicinity of the center of the front surface of the rack member 136. The engaging hole 171 is engaged with the engaging protrusion 172 of the rack member 136, and is connected by caulking.

The rack member 136 is formed with rack grooves 136a and 136b (FIG. 20) on both left and right sides thereof. The left side thereof is engaged with the reduction gear 135, and the right side is engaged with the cam lever 138.

The reduction gear 135 is a partial gear in which the gears of the small-diameter portion 173 and the large-diameter portion 174 have the same thickness, and an engagement hole 17 provided at the center of the small-diameter portion 173.
5 is rotatably engaged with the projection 176 of the blade mount 106,
The gear of the small diameter portion 173 meshes with the rack member 136, and the large diameter portion 174 meshes with the operation gear 131.

The operation gear 131 is connected to the projection of the operation button 130 and is integrated with the operation gear 131. The operation gear 131 is positioned in a circular hole defined by the front surface of the main body housing 101 and the recesses 177 and 178 of the upper panel 129. It is held rotatably with respect to the main body housing 101. By assembling the main body 301 in this state, the operation gear 13
1 and the reduction gear 135 mesh with each other, and by rotating the operation gear 131, the reduction gear 135 rotates, and the switching plate 121 can be moved up and down via the rack member 136. When the holding cassette 118 is assembled in this state, the entire blade frame moves up and down.

On the main body side, a switching plate 121 that can move up and down is disposed at a position surrounded by the outer periphery of the blade mount 106 and the inner periphery of the main body housing 101, and corresponds to the engaging hook 120 of the holding cassette 118. By providing a locking hole 122 for attaching and detaching the holding cassette 118 at the position, the holding cassette 1
The outer blade 14 can be moved up and down by moving the switching plate 121 up and down at the same time as the attachment and detachment of the 18 can be performed.

As a mechanism for sliding the switching plate 121 in the vertical direction, a rotary operation button 130 having a gear on the inner surface is rotatably held outside the main body housing 101. The switching member 121 has a rack member 13 on the front.
6, or by connecting the rack member 136, further engaging the reduction gear 135 between the rack member 136 and the operation gear 131 on the inner surface side of the operation button 130, and turning the operation button 130, Power is transmitted through the operation gear 131 and the rack member 136, the switching plate 121 can be slid in the vertical direction, and the mounting height of the outer blade 14 can be changed.

The cam lever 138 provided on the right side of the rack member 136 is connected to the blade mount 10 via an O-ring 134.
6 is rotatably engaged with a hole 183 on the front surface thereof, and an engagement rib 184 is provided at a tip of the cam lever 138 so as to engage with a groove 185 of a switch cam 137 disposed in the main body housing 101. ing.

In the switch cam 137, a projection 186 provided on the back side of the groove 185 is rotatably engaged with a hole 187 on the front surface of the motor 3, and a long groove 188 is formed on the right side thereof with a projection of the switching lever 139. 189 so as to be freely rotatable. The switching lever 139 is vertically movable with respect to the motor 3 by its upper end being engaged with the engagement groove 190 on the upper part of the motor 3 and the rear projection 191 being engaged with the engagement hole 192 on the front of the motor 3. Is held.

With this configuration, when the rack member 136 moves, the switching lever 139 can move up and down via the cam lever 138 and the switch cam 137.

FIGS. 22 to 26 show an example of the motor control means. An example of a block diagram of this example is shown in FIGS.
0 is shown.

FIG. 22 shows a state in which a conductive brush A is disposed in front of the switching lever 139, and moves up and down following the movement of the switching lever 139 when the position of the blade unit 200 is changed. On the other hand, conductive patterns C arranged at regular intervals are printed on a circuit board B extending from the circuit board 126, and two points in the conductive patterns C constitute an encoder E that is short-circuited by a conductive brush. The position of the blade unit 200 can be detected by detecting which pattern is short-circuited by the IC (D).
The IC (D) controls the current flowing through the motor 3 according to the detected amount, and adjusts the driving speed of the motor 3. Also, by detecting the position of the switching lever 139 connected to the blade unit 200, rather than detecting the position of the operation button,
The mounting position of the blade unit 200 can be detected more accurately.

FIG. 23 shows another example. Here, a plurality of light emitting elements N and light receiving elements O are arranged on an axis crossing the switching lever 139 so as to face each other. Switching lever 139
Is moved downward, the lower part of the switching lever 139 becomes the light emitting element N.
And light receiving element O, and intercepts the light beam received by light receiving element O. Therefore, the position of the switching lever 139, that is, the position of the blade unit 200, can be detected based on how many light receiving elements receive the light beam.
The IC (D) controls the current flowing through the motor 3 according to the detected amount, and adjusts the driving speed of the motor 3.

FIG. 24 shows a case where a plurality of switches F and G are arranged in the notch of the switching lever 139, and the blade unit 2
When the position of 00 is changed, the switching lever 139 moves up and down, and switches F and G are turned on / off. Switching lever 1
39 has the highest position, ie blade unit 2
When the 00 position is at the highest position, the switches F and G are both OFF. When the switching lever 139 is at the intermediate position, that is, when the position of the blade unit 200 is at the intermediate position, the switch F is ON and the switch G is OFF.
It becomes F. When the switching lever 139 is at the lowest position,
That is, when the position of the blade unit 200 is at the lowest position, both the switches F and G are ON. Thus, the position of the blade unit 200 can be detected at three levels of height. The control unit controls the current flowing to the motor 3 according to the detected amount, and adjusts the driving speed of the motor 3.

FIG. 25 shows a configuration in which a resistor H constituting the variable resistor 310 is disposed on the back surface of the switching lever 139 so as to move simultaneously with the switching lever 139 as the blade unit 200 moves up and down. On the other hand, the conductive pattern I is printed on the circuit board B so as to be in contact with the resistor H, and when the switching lever 139 moves up and down, the resistance value between the lead wire J and the conductive pattern I changes. This resistance value is connected in series with the motor 3. When the position of the blade unit 200 is low, the resistance value is low and the driving speed of the motor 3 is increased. Conversely, when the position of the blade unit 200 is high, the resistance value is high, which acts to reduce the driving speed of the motor 3.

FIG. 26 shows the operation button 130 and the operation gear 131.
A rotary volume K serving as a variable resistor 300 is arranged on the same axis as the variable resistor 300, and is configured to move simultaneously with the rotation of the operation button. FIG. 30 shows an example of a block diagram of the present example. The resistance value of the rotary volume K changes with the rotation of the operation button. Since this resistance value is connected in series with the motor 3, the resistance value is low when the position of the blade unit 200 is low, and acts to increase the driving speed of the motor 3. Conversely, when the position of the blade unit 200 is high, the resistance value is high, which acts to reduce the driving speed of the motor 3.

[0079]

As described above, according to the first aspect of the present invention, the electric shaver in which the blade unit having the outer blade can float with respect to the main body and the mounting height of the blade unit can be adjusted. In, the inner blade drive control means to adjust the drive speed of the inner blade in conjunction with the mounting height of the blade unit, so by adjusting the drive speed of the inner blade in conjunction with the mounting height of the blade unit Even if the driving load changes, the adjustment can be made so that the driving speed of the inner blade does not decrease and the sharpness deteriorates, or the driving speed increases and the skin contact does not deteriorate. Therefore, in each of the mode of improving the skin contact and the mode of improving the sharpness, the optimum driving speed of the inner blade is obtained, and the loss of the skin contact and the sharpness can be prevented.

According to a second aspect of the present invention, in addition to the effects of the first aspect, there are provided position detecting means for detecting the position of the blade unit, and means for controlling the motor in conjunction with the position of the blade unit. Therefore, the drive speed of the inner blade can be accurately adjusted by linking the detection of the position of the blade unit and the control of the motor.

According to the third aspect of the present invention, in addition to the effect of the second aspect, the position detecting means of the blade unit detects the position of the operating means for moving the blade unit up and down. Even in the case of the rotary dial type or the vertical lever type, the mounting height of the blade unit can be easily detected from the operation amount.

According to a fourth aspect of the present invention, in addition to the effect of the third aspect, the operating means for moving the blade unit up and down comprises an operating portion arranged outside the main body, and the blade unit is provided on the back surface thereof. Has a first connecting portion connected to a member for moving the blade unit up and down, and a second connecting portion connected to a portion for detecting the mounting height of the blade unit. Since the mounting height can be detected at the same time as the mounting height is adjusted, the operability is improved.

According to a fifth aspect of the present invention, in addition to the effect of the second aspect, the position detecting means detects one or more positions of a member coupled to move up and down in conjunction with the blade unit. Since the switch is composed of a switch, the mounting height of the blade unit can be detected with a small number of parts, so that the structure can be simplified and the cost can be reduced.

According to a sixth aspect of the present invention, in addition to the effect of the fourth aspect, the main body has a waterproof structure, and a rotation shaft portion is provided on the member for transmitting the operation of the operating means disposed outside the main body to the inside of the main body. The O-ring seals the space between the rotating shaft portion and the bearing portion of the main body, so that the reliability of waterproofing between the operation means and the inside of the main body can be improved.

According to a seventh aspect of the present invention, in addition to the effect of the first aspect, in the reciprocating electric shaver, the driving speed of the inner blade is adjusted by adjusting the amplitude of the inner blade. It is possible to provide a reciprocating electric shaver that does not impair the sharpness.

According to the invention of claim 8, in addition to the effect of claim 1, in the rotary electric shaver, the driving speed of the inner blade is adjusted by controlling the rotation speed of the inner blade. It is possible to provide a rotary electric shaver that does not impair hitting or sharpness.

According to a ninth aspect of the present invention, there is provided an electric shaver in which the blade unit having the outer blade is floatable with respect to the main body and the mounting height of the blade unit is adjustable. Regardless, the inner blade drive control means that controls the drive speed of the inner blade to be constant is provided, so that the blade unit can be mounted by controlling the drive speed to be constant at any mounting height of the blade unit. It is possible to eliminate the adverse effect that the skin contact becomes worse when the height is at a high position, and the sharpness becomes poor when the height is at a low position.

According to a tenth aspect of the present invention, in addition to the effect of the ninth aspect, by detecting the driving speed of the motor, the driving speed of the inner blade can be kept constant regardless of the mounting height of the blade unit. Since the control is performed, the drive speed of the motor can be controlled to be constant by, for example, a method of detecting a back electromotive voltage by driving the motor, so that the drive speed of the inner blade can be kept constant with a simple structure.

According to an eleventh aspect of the present invention, in addition to the effect of the first aspect, the inner blade drive control means reduces the drive speed of the inner blade when the mounting height of the blade unit is at a high position, And when the mounting height of the blade unit is at a low position, the drive speed of the inner blade is adjusted to be high. Therefore, when the mounting height of the blade unit is at a high position, the skin contact becomes better, and Sometimes the sharpness can be improved.

According to the twelfth aspect of the present invention, in addition to the effect of the first aspect, the position detection means of the blade unit detects the position of a member arranged to move up and down in conjunction with the blade unit. The detection of the mounting height of the blade unit can be easily performed via the member.

The invention described in claim 13 is the same as that in claim 12
In addition to the effects described above, the position detecting means of the blade unit is provided with a light shielding portion on a member that moves up and down in conjunction with the blade unit, and detects movement of the member by blocking light rays from the light emitting element with the light shielding portion. Therefore, the movement of the member moving up and down in conjunction with the blade unit can be optically and accurately detected.

The invention according to claim 14 has, in addition to the effect according to claim 1, a plurality of switches which are turned on / off by members which are interlocked with the blade unit, so that the plurality of switches interlock with the blade unit. The movement of the member can be easily and accurately detected.

According to a fifteenth aspect of the present invention, in addition to the effect of the first aspect, the means for controlling the motor comprises a variable resistor for controlling a current flowing through the motor in conjunction with the mounting position of the blade unit. Therefore, the drive speed of the motor can be adjusted by changing the resistance value of the variable resistor, and the control of the motor can be easily performed using only the variable resistor.

The invention according to claim 16 is based on claim 15
In addition to the effects described above, the variable resistor is arranged in series with the motor, so that the motor driving speed can be adjusted by the variable resistor with a simple structure.

The invention according to claim 17 is based on claim 15
In addition to the effects described above, the blade unit has a member coupled to move up and down in conjunction with the blade unit, and the member itself constitutes a variable resistor. The resistance value of the variable resistor can be changed in conjunction therewith.

The invention according to claim 18 is directed to claim 15
In addition to the effects described above, since a part of the operating means for raising and lowering the blade unit constitutes a variable resistor, it is possible to adjust the driving speed of the motor by changing the resistance value with a small number of parts. Can be.

The invention according to claim 19 is the invention according to claim 18
In addition to the effects described above, since the rotary volume is formed coaxially with the rotary operation means, the drive speed of the motor can be more easily adjusted by the amount of rotation of the operation means.

[Brief description of the drawings]

FIG. 1 is a front view showing an example of the present embodiment.

FIG. 2 is a front sectional view of the same.

FIG. 3 is a side sectional view of the same.

FIG. 4 is an exploded perspective view of the same.

FIG. 5 is an exploded perspective view of the same.

FIG. 6 is an exploded perspective view of the same.

FIG. 7 is an exploded perspective view of the same.

FIG. 8 is an exploded perspective view of the same.

FIG. 9 is an exploded perspective view of the same.

FIG. 10 is a partially broken front view of the same.

FIG. 11 is a partially cutaway front view of the same.

FIG. 12 is a perspective view of the same.

FIGS. 13A to 13C are explanatory diagrams of the operation.

FIG. 14 is a graph showing the relationship between the mounting height of the blade unit and the driving speed of the inner blade.

FIG. 15 is a front view of another embodiment.

FIG. 16 is a front sectional view of the above.

FIG. 17 is a side sectional view of the same.

FIG. 18 is an exploded perspective view of the same.

FIG. 19 is an exploded perspective view of the same.

FIG. 20 is an exploded perspective view of the same.

FIG. 21 is an exploded perspective view of the same.

FIG. 22 is a partially cutaway front view of another embodiment.

FIG. 23 is a partially broken front view of still another embodiment.

FIG. 24 (a) is a partially cutaway front view of still another embodiment, and FIG. 24 (b) is an explanatory view of an intermediate position of a switching lever.

FIG. 25 (a) is a partially cutaway front view of still another embodiment, and FIG. 25 (b) is a side sectional view.

FIG. 26 is a partially broken front view of still another embodiment.

FIG. 27 is a block diagram of the above.

FIG. 28 is a block diagram of another example.

FIG. 29 is a block diagram of still another example.

FIG. 30 is a block diagram of still another example.

[Explanation of symbols]

 Reference Signs List 3 motor 4 inner blade 8 switch 14 outer blade 72 rotating shaft portion 139a light shielding portion 139a, 139b switch operation portion F, G switch 200 blade unit 301 main body 302 inner blade drive control means 303 position detection means 304 operation means 310 variable resistor N Light emitting element K Rotary volume

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[Procedure amendment]

[Submission date] November 20, 2000 (200.11.
20)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claim 8

[Correction method] Change

[Correction contents]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0004

[Correction method] Change

[Correction contents]

In an electric razor in which the mounting height of the outer blade can be changed, when the height of the outer blade is at the upper position, the mode is used by a person with weak skin or a thin beard. inner <br/> becomes small upward force of the blade, will outer cutter becomes higher speed or frequency than when an underlying dark people and bearded Conversely, higher who want to close shave rotation In a mode in which the outer blade, which is desired to be used in a powerful manner, is at the lower position, the rotation speed is reduced, and there is a problem that the driving speed of the inner blade is reduced and the sharpness is deteriorated.

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0010

[Correction method] Change

[Correction contents]

Preferably, the position detecting means 303 comprises a single changeover switch 85 for detecting a plurality of positions of members which are coupled to move up and down in association with the blade unit 200. In this case, the number of parts is reduced. Can be reduced.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0013

[Correction method] Change

[Correction contents]

[0013] in preferred to adjust the driving speed of the inner cutter 4 by controlling the rotational speed or frequency of the blade 4.

[Procedure amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0030

[Correction method] Change

[Correction contents]

The driver 12 is provided with an inner blade push-up spring 22 together with a spring stopper 40. The inner blade 4 is always pressed against the outer blade 14 (FIG. 6) by the elasticity of the inner blade push-up spring 22. I have. A trimmer drive rod 15 and a slit blade drive rod 51 are attached to the side surface of the drive portion of the driver 12 so that the drive can be transmitted to the trimmer unit 10 and the slit blade 84 (FIG. 6), respectively.

[Procedure amendment 6]

[Document name to be amended] Statement

[Correction target item name] 0037

[Correction method] Change

[Correction contents]

The engaging projection 6a of the blade mount 6 on the main body 301 penetrates the center hole 59 (FIG. 7) of the dial 53. A screw hole 6b is provided at the center of the engagement protrusion 6a. A holding plate 61 having a notch 60 formed on the surface of the dial 53 is loosely engaged, and a screw 62 is inserted through the holding plate 61 and the hole 59 of the dial 53 and screwed into the engaging projection 6 a of the blade mounting base 6 to hold the holding member. Fixing the plate 61 to the blade mount 6,
The dial 53 can be rotated by hand around the screw 62. On the surface of the dial 53, "power
Indication such as “rful”, “normal”, and “mild” is given. When the dial 53 is rotated, the holding plate 61 is fixed, and the above-mentioned display can be seen from the notch 60, so that the set position of the blade unit 200 can be known. Reference numeral 63 in FIG. 8 denotes a hidden plate for the screw 62.

[Procedure amendment 7]

[Document name to be amended] Statement

[Correction target item name] 0038

[Correction method] Change

[Correction contents]

As shown in FIG. 10, a cam groove 52 eccentric from the center of rotation is provided on the inner side of the rotary type dial 53. Dial 53 is rotatably arranged in the blade mount 6 through the opening hole of the front panel 29.

[Procedure amendment 8]

[Document name to be amended] Statement

[Correction target item name] 0039

[Correction method] Change

[Correction contents]

For connection with the switching plate 21, the round boss 33 of the slide hook 25 is used as a cam shaft, and slidably connected to the eccentric cam groove 52 on the back surface of the dial 53 . The switching plate 21 sandwiching the blade mounting base 6 in a U-shape and thereby restricting the operation in the left-right direction can only move up and down. By turning the dial 53, the distance between the cam groove 52 on the back surface and the center of rotation changes. The round boss 33 of the slide hook 25 serving as a cam shaft connected to the cam groove 52 is
2, the eccentricity of the cam groove 52 causes a vertical force to be transmitted to the switching plate 21 so that the switching plate 21 is slid in the vertical direction.

[Procedure amendment 9]

[Document name to be amended] Statement

[Correction target item name] 0044

[Correction method] Change

[Correction contents]

As described above, the operation of the dial 53 is transmitted to the changeover switch 85 capable of detecting a plurality of positions in conjunction with the adjustment of the mounting height of the blade unit 200 by the operation of the dial 53. 200 positions are detected. Then, the detected blade unit 20
The motor 3 is controlled based on the zero position to adjust the amplitude of the inner blade 4. FIG. 28 shows a block diagram of this example.

[Procedure amendment 10]

[Document name to be amended] Statement

[Correction target item name] 0051

[Correction method] Change

[Correction contents]

Referring to FIGS. 15 to 26, still another embodiment of the present invention will be described. Inside the cylindrical main body housing 101 , a storage battery 102 and a motor 103 such as a linear motor, a base 105 for holding the storage battery 102, the motor 103 and a circuit board 126 are stored.
The motor 103 is provided with a driver 112 for transmitting a driving force to the inner blade 104 at an upper portion thereof.

[Procedure amendment 11]

[Document name to be amended] Statement

[Correction target item name] 0054

[Correction method] Change

[Correction contents]

[0054] As shown in FIG. 20, the blade mount 106, the rubber pressing plate 111 has its own opening, the motor 10
No. 3, the driver 112 penetrates through the opening, the inner O-ring part 148 of the driver waterproof rubber 113 fits into the waterproof seal part 149 of the driver 112, and the outer peripheral part 150 of the driver waterproof rubber 113 is blade-mounted. The structure is sandwiched between the base 106 and the rubber pressing plate 111.

[Procedure amendment 12]

[Document name to be amended] Statement

[Correction target item name] 0056

[Correction method] Change

[Correction contents]

The driver 112 has an inner blade push-up spring 132.
(FIG. 21) is provided together with a spring stopper 140, so that the elasticity thereof can always press the inner cutter 104 against the outer cutter 114, and the trimmer drive rod 115 and the slit are provided on the side surface of the drive part of the driver. Attach the blade drive rod 151,
The drive can be transmitted to the trimmer blade and the slit blade, respectively.

[Procedure amendment 13]

[Document name to be amended] Statement

[Correction target item name] 0061

[Correction method] Change

[Correction contents]

In the slit blade unit, the hook 168 provided on the slit holding member 146 and the projection 167 provided on the inner surface of the holding cassette 118 are engaged, and are urged upward by the slit float blade 147 . In this state, it is held in the holding cassette 118 so as to float freely. The holding cassette 118 has an engaging hook 12 for detaching from the main body.
0 are provided at two places at both ends in the longitudinal direction for attachment and detachment.

[Procedure amendment 14]

[Document name to be amended] Statement

[Correction target item name] 0062

[Correction method] Change

[Correction contents]

On the main body side, a switching plate 121 is disposed at a position surrounded by the outer periphery of the blade mount 106 and the inner periphery of the main body housing 101 so as to be movable in the vertical direction. FIG. 27 shows a block diagram of this example.

[Procedure amendment 15]

[Document name to be amended] Statement

[Correction target item name] 0063

[Correction method] Change

[Correction contents]

On the body housing 101 side, a switching plate (slide plate) 121 is vertically disposed at a position surrounded by the outer periphery of the blade mount 6 and the inner periphery of the upper panel 129 . The switching plate 121 has a substantially U-shape, and its end protrudes upward.
6 protrudes from the upper surface through a hole 170 provided in the same. A locking hole 122 for engaging with the engaging hook 120 of the holding cassette 118 is provided.

[Procedure amendment 16]

[Document name to be amended] Statement

[Correction target item name]

[Correction method] Change

[Correction contents]

On the main body side, a switching plate 121 that can move up and down is disposed at a position surrounded by the outer periphery of the blade mount 106 and the inner periphery of the main body housing 101, and corresponds to the engaging hook 120 of the holding cassette 118. By providing a locking hole 122 for attaching and detaching the holding cassette 118 at the position, the holding cassette 1
The outer blade 114 can be moved up and down by moving the switching plate 121 up and down at the same time as the attachment and detachment of the 18 can be performed.

[Procedure amendment 17]

[Document name to be amended] Statement

[Correction target item name] 0069

[Correction method] Change

[Correction contents]

As a mechanism for sliding the switching plate 121 in the vertical direction, a rotary operation button 130 having a gear on the inner surface is rotatably held outside the main body housing 101. The switching member 121 has a rack member 13 on the front.
6, or by connecting the rack member 136, further engaging the reduction gear 135 between the rack member 136 and the operation gear 131 on the inner surface side of the operation button 130, and turning the operation button 130, Power is transmitted via the operation gear 131 and the rack member 136, the switching plate 121 can be slid in the vertical direction, and the mounting height of the outer blade 114 can be changed.

[Procedure amendment 18]

[Document name to be amended] Statement

[Correction target item name] 0071

[Correction method] Change

[Correction contents]

The switch cam 137 has a protrusion 186 provided on the back side of the groove 185 and a hole 187 on the front surface of the motor 103.
And is rotatably engaged with the slot 188 on the right side thereof.
Are rotatably connected to the protrusion 189 of the switching lever 139. The switching lever 139 has an upper end portion of the motor 10.
And 3 of the upper portion of the engaging groove 190, the rear side of the projecting portion 191 by the respective motor 103 the front face of the engaging hole 192 is engaged, is held to the motor 103 vertically movable.

[Procedure amendment 19]

[Document name to be amended] Statement

[Correction target item name]

[Correction method] Change

[Correction contents]

FIG. 22 shows a state in which a conductive brush A is disposed in front of the switching lever 139, and moves up and down following the movement of the switching lever 139 when the position of the blade unit 200 is changed. On the other hand, conductive patterns C arranged at regular intervals are printed on a circuit board B extending from the circuit board 126, and two points in the conductive patterns C constitute an encoder E that is short-circuited by a conductive brush. The position of the blade unit 200 can be detected by detecting which pattern is short-circuited by the IC (D).
The IC (D) controls the current flowing to the motor 103 according to the detected amount, and adjusts the driving speed of the motor 103 . Also, rather than detecting the position of the operation button, the blade unit 200
By detecting the position of the switching lever 139 connected to the blade unit 139, the mounting position of the blade unit 200 can be detected more accurately.

[Procedure amendment 20]

[Document name to be amended] Statement

[Correction target item name] 0075

[Correction method] Change

[Correction contents]

FIG. 23 shows another example. Here, a plurality of light emitting elements N and light receiving elements O are arranged on an axis crossing the switching lever 139 so as to face each other. Switching lever 139
Is moved downward, the lower part of the switching lever 139 becomes the light emitting element N.
And light receiving element O, and intercepts the light beam received by light receiving element O. Therefore, the position of the switching lever 139, that is, the position of the blade unit 200, can be detected based on how many light receiving elements receive the light beam.
The IC (D) controls the current flowing to the motor 103 according to the detected amount, and adjusts the driving speed of the motor 103 .

[Procedure amendment 21]

[Document name to be amended] Statement

[Correction target item name] 0076

[Correction method] Change

[Correction contents]

FIG. 24 shows a case where a plurality of switches F and G are arranged in the notch of the switching lever 139, and the blade unit 2
When the position of 00 is changed, the switching lever 139 moves up and down, and switches F and G are turned on / off. Switching lever 1
39 has the highest position, ie blade unit 2
When the 00 position is at the highest position, the switches F and G are both OFF. When the switching lever 139 is at the intermediate position, that is, when the position of the blade unit 200 is at the intermediate position, the switch F is ON and the switch G is OFF.
It becomes F. When the switching lever 139 is at the lowest position,
That is, when the position of the blade unit 200 is at the lowest position, both the switches F and G are ON. Thus, the position of the blade unit 200 can be detected at three levels of height. The control unit controls the motor according to the detected amount.
Controlling the current flowing in the 103 to adjust the driving speed of the motor 103.

[Procedure amendment 22]

[Document name to be amended] Statement

[Correction target item name] 0077

[Correction method] Change

[Correction contents]

FIG. 25 shows a configuration in which a resistor H constituting the variable resistor 310 is disposed on the back surface of the switching lever 139 so as to move simultaneously with the switching lever 139 as the blade unit 200 moves up and down. On the other hand, the conductive pattern I is printed on the circuit board B so as to be in contact with the resistor H, and when the switching lever 139 moves up and down, the resistance value between the lead wire J and the conductive pattern I changes. The resistance value of the motor 103
When the position of the blade unit 200 is low, the resistance value is low and the driving speed of the motor 103 is increased. Conversely, when the position of the blade unit 200 is high, the resistance value is high, which acts to reduce the driving speed of the motor 103 .

[Procedure amendment 23]

[Document name to be amended] Statement

[Correction target item name] 0078

[Correction method] Change

[Correction contents]

FIG. 26 shows the operation button 130 and the operation gear 131.
A rotary volume K serving as a variable resistor 300 is arranged on the same axis as the variable resistor 300, and is configured to move simultaneously with the rotation of the operation button. FIG. 30 shows an example of a block diagram of the present example. The resistance value of the rotary volume K changes with the rotation of the operation button. Since this resistance value is connected in series with the motor 103 , when the position of the blade unit 200 is low, the resistance value is low, and the driving speed of the motor 103 is increased. Conversely, when the position of the blade unit 200 is high, the resistance value is high, which acts to reduce the driving speed of the motor 103 .

[Procedure amendment 24]

[Document name to be amended] Statement

[Correction target item name] 008

[Correction method] Change

[Correction contents]

[0086] The invention of claim 8, wherein, in addition to the effect of claim 1, wherein, since adjusting the drive speed of the inner cutter by controlling the rotational speed or frequency of the inner cutter, and skin around sharpness The electric shaver can be provided without impairing the electric shaver.

[Procedure amendment 25]

[Document name to be amended] Drawing

[Correction target item name] Fig. 8

[Correction method] Change

[Correction contents]

FIG. 8

[Procedure amendment 26]

[Document name to be amended] Drawing

[Correction target item name] FIG.

[Correction method] Change

[Correction contents]

FIG.

Continuing on the front page (72) Inventor Yasunori Ueda 1048 Kadoma Kadoma, Osaka Pref. Matsushita Electric Works, Ltd. (72) Inventor Fumio Taniguchi 1048 Odaka Kadoma, Kadoma, Osaka Pref. Matsushita Electric Works (72) Invention Mikihiro Yamashita 1048 Kadoma Kadoma, Kadoma City, Osaka Prefecture (72) Inventor Takeshi Shiba 1048 Kadoma Kadoma, Kadoma City, Osaka Prefecture Inside the Matsushita Electric Works Co., Ltd. (72) Yasuo Ibuki Inventor Yasuo Kadoma, Osaka Prefecture 1048 Kadoma Matsushita Electric Works Co., Ltd. (72) Inventor Atsushi Takahashi 1048 Kazuma Kadoma City, Osaka Pref.Matsushita Electric Works Co., Ltd.

Claims (19)

[Claims] 1. An electric shaver in which a blade unit having an outer blade is floatable with respect to a main body and the mounting height of the blade unit is adjustable. An electric razor comprising an inner blade drive control means for adjusting a drive speed. 2. The electric shaver according to claim 1, further comprising a position detecting means for detecting a position of the blade unit, and means for controlling a motor in conjunction with the position of the blade unit. 3. The electric shaver according to claim 2, wherein the position detection means of the blade unit detects a position of an operation means for moving the blade unit up and down. 4. An operating means for moving the blade unit up and down,
A first connecting portion provided on the back side of the operating portion disposed outside the main body and connected to a member for moving the blade unit up and down; and a second connecting portion connected to a portion for detecting a mounting height of the blade unit. The electric shaver according to claim 3, further comprising: 5. The electric shaver according to claim 2, wherein the position detecting means comprises a single switch for detecting a plurality of positions of a member coupled to move up and down in conjunction with the blade unit. 6. A body having a waterproof structure, a rotating shaft portion provided on a member for transmitting the operation of operation means disposed outside the body to the inside of the body, and an O-ring between the rotating shaft portion and a bearing portion of the body. The electric shaver according to claim 4, wherein the electric shaver is sealed. 7. The electric shaver according to claim 1, wherein in the reciprocating electric shaver, the drive speed of the inner cutter is adjusted by adjusting the amplitude of the inner cutter. 8. The electric shaver according to claim 1, wherein in the rotary electric shaver, the driving speed of the inner blade is adjusted by controlling the rotation speed of the inner blade. 9. An electric shaver in which a blade unit having an outer blade is floatable with respect to a main body and the mounting height of the blade unit is adjustable, regardless of the mounting height of the blade unit. An electric razor comprising an inner blade drive control means for controlling a drive speed to be constant. 10. The drive speed of the inner blade is controlled to be constant irrespective of the mounting height of the blade unit by detecting the drive speed of the motor.
Electric razor as described. 11. The inner blade drive control means reduces the drive speed of the inner blade when the mounting height of the blade unit is high, and drives the inner blade when the mounting height of the blade unit is low. The electric shaver according to claim 1, wherein the speed is adjusted so as to increase the speed. 12. The electric shaver according to claim 1, wherein the position detecting means of the blade unit detects a position of a member arranged to move up and down in conjunction with the blade unit. 13. The position detecting means of the blade unit includes a light-shielding portion provided on a member which moves up and down in conjunction with the blade unit, and detects a movement of the member when light from the light emitting element is blocked by the light-shielding portion. An electric razor according to claim 12, characterized in that: 14. The electric shaver according to claim 1, wherein the position detecting means of the blade unit comprises a plurality of switches which are turned on / off by a member interlocked with the blade unit. 15. The electric shaver according to claim 1, wherein the means for controlling the motor comprises a variable resistor for controlling a current flowing through the motor in conjunction with a position at which the blade unit is mounted. 16. The electric shaver according to claim 15, wherein the variable resistor is arranged in series with the motor. 17. The electric shaver according to claim 15, further comprising a member coupled to move up and down in conjunction with the blade unit, the member itself constituting a variable resistor. 18. The electric shaver according to claim 15, wherein a part of the operation means for moving the blade unit up and down forms a variable resistor. 19. The electric shaver according to claim 18, wherein a rotary volume is formed coaxially with the rotary operation means.