JPS6018430B2 - Cap structure of flushable electric shaver - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cap structure for a water-washable electric razor, and more particularly, a cap structure for a water-washable electric razor, and more particularly, a cap structure for a water-washable electric razor, and more specifically, a cap structure for a shaving blade of an electric razor, which can remove the shavings accumulated inside by washing with water, to protect the shaving blade from inconvenient use. This relates to the structure of the cap to be attached.

Generally, when this type of water-washable electric razor is washed with water to remove beard debris that accumulates in the beard reservoir, the beard reservoir will dry slowly, so the cap is removed to protect the razor blade after washing. If you take care of yourself, the drying of the beard storage room will be significantly delayed.
There is the problem of bacteria breeding and the generation of bad odors.Also, if the cap is placed on the mounting slot to speed up the drying of the shaving chamber, there is a problem that the shaving blade cannot be protected from external impact. , to protect the shaving blade without delaying the drying of the beard storage chamber after washing with water,
This is desired for a flushable electric shaver. The present invention has been made in view of the above points, and its main purpose is to speed up the drying of the beard storage chamber after the beard shoulders are washed away by washing with water, thereby preventing the proliferation of bacteria in the beard storage chamber. It prevents the generation of bad odors and protects the shaving blade from external impact.
To this end, another object of the present invention is to provide a cap structure for a water-washable electric shaver that can prevent dirt from entering the beard storage chamber and the mustache remaining in the beard storage chamber from flying out by closing the entrance window provided in the cap when carrying the device. Another object of the present invention is to provide a cap structure for a water-washable electric razor that allows the cap to be easily removed from the shaving blade, and another object of the invention is to provide a cap structure for a water-washable electric razor that allows easy removal of the cap from the shaving blade. To provide a cap structure for a water-washable electric shaver in which clickability is imparted to opening/closing operations, and a sekiguchi window can be reliably locked in both open and closed positions.

The present invention will be described in detail below based on embodiments shown in the figures. In the cap structure of the flushable electric shaver according to the present invention, a shaving blade B is attached to the upper end of a housing A that houses a battery 80 therein, and the shaving blade B and the upper end of the housing A are watertight with the inside of the housing A. In a flushable electric razor, a beard reservoir chamber C is formed and the beard debris accumulated in the beard reservoir chamber C is discharged to the outside by water introduced into the beard reservoir chamber C. A cap D that covers the shaving blade B is detachably attached to the shaving blade B, and a window 7 that can be opened and closed is formed in the cap D at a position corresponding to the outer blade surface of the shaving blade B. In this example, the cap D
shows an example in which the cap holder 1 is detachably attached to the shaving blade B, and the cap cover 10 is attached to the cap holder so as to overlap with the upper surface of the cap holder 1. As shown in FIGS. 1 and 2, this flushable electric razor consists of a housing A that mainly houses a motor 25 and a battery 80, a shaving blade B attached to the upper end of the housing A, and a shaving blade B.
A cap D is attached to the battery 80 in the housing A.
The battery block E is comprised of a battery block E that holds the battery block E and closes the lower end opening of the housing A with its bottom surface, and a switch block F that is attached to one side of the housing A. The housing A is formed of synthetic resin into a cylindrical body with one side of the upper end closed in a circular shape and the lower end opened in a substantially hexagonal shape. ring 40
, the blade mounting base 30 and the inner blade block 20 and outer blade block 21 constituting the shaving blade B are attached, and the lower end opening □ is closed with the bottom cover 82 of the battery block E. A motor mount 50 is housed in the circular opening 17 at the upper end of the housing A with its upper surface flush with the end surface of the circular opening 17. A rinsing ring 40 having an outer diameter approximately equal to that of the rinsing ring 40 is coaxially rotatably mounted, and a blade mount 30 whose peripheral wall 31 is in contact with the inner surface of the peripheral wall 41 of the rinsing ring 40 is attached to the upper surface of the motor mount 50. is fixed via an inner flange 42 protruding from the lower end of the inner periphery, and a male threaded cylinder 22 protruding from the lower end of the outer cutter block 21 is screwed into a female thread 37 on the inner peripheral surface of the peripheral wall 31 of the blade mount 30. The outer blade block 21 is fixed to the blade mounting base 301,
A beard storage chamber C is formed between the blade mount 30 and the outer cutter block 21. An inner cutter block 20 that is rotatably driven by a motor 25 is housed in this hair storage chamber C, and the inner cutter block 20 is housed, and the inner cutter 23 and the outer cutter block 21 that protrude from the upper surface of the inner cutter block 20 are placed in the inner cutter block 20. The beard shoulders cut with the outer blade 24 of the face are stored in the beard storage chamber C, that is, the bottom surface of the blade mount 30, and the peripheral wall 31 of the blade mount 30 surrounding the side of the beard storage chamber C and A part of the peripheral wall 41 of the washing ring 40 is opened, and water is introduced into the beard storage chamber C and discharged to remove the beard shoulders accumulated inside. The motor 25 is iron-mounted within a cylindrical body 52 that protrudes from the back surface of the motor mount 50, and the motor 25 has its driving shaft 26 projected into a cylindrical shaft 54 that protrudes from the center of the top surface of the motor mount 50. and is held within the cylindrical body 52. A motor terminal 29 is exposed on the lower surface of this motor 25, and the motor terminal 29 is connected to an anode spring 107 and a cathode spring 10, respectively, provided on the battery block E.
8, respectively. Here, cylinder 5
A ring 56 is ironed on the outer periphery of the motor mounting base 50 and a flange receiver 18 protrudes to the inner periphery of the circular opening 17.
Fix the motor mounting base 50 to the housing A by sandwiching the ring 56 and screwing the screw 58 into the screw hole 19 provided on the inner circumference of the circular closed portion 17 through the notch 57 provided on the outer circumference of the flange 55. The circular opening 17 is closed watertight to prevent water from entering the housing A. In addition, an inner housing 57 protrudes from the inner wall of the cylinder shaft 54 at the center in the vertical direction, and as shown in FIG. By fitting the bushing 59 between the inner flange 57 and the inner flange 57, the housing A from the vicinity of the drive shaft 26 can be
It is designed to prevent water from entering inside. On the other hand, the flushing ring 40 has an inner flange 42 protruding from the inner periphery of the lower end that is freely guided to the outer periphery of the upper surface of the mower mount 50, and has two points spaced apart in the circumferential direction at two points facing each other in the diametrical direction. By sliding the triangular protrusions 44 protruding from the longitudinal center inner surface of the string 43 that linearly connects the inner flange 42 along the outer peripheral surface of the circular base 60 protruding from the center of the upper surface of the motor mounting base 50. It is rotatable on the same axis as the drive shaft 26 of the motor 25.
The outer peripheral surface of this circular table 60 has four
A pair of sawtooth protrusions 61, 61 protrude at these locations, and the triangular protrusion 44 is inserted into the locking recess 62 between the pair of protrusions 61, 61.
Rotation of the washing ring 40 is stopped when the iron is inserted. That is, the string 43 having the triangular protrusion 44 is given elasticity in the radial direction, and while the flushing ring 40 is rotating, the string 43 springs outward and the triangular protrusion 44 rides over the sawtooth protrusion 61 and enters the locking recess. 62, which gives the flushing ring 40 a rotational click property, and the flushing ring 40 is placed at a position where the triangular protrusion 44 is inserted into the locking recess 62.
This means that it is locked. Also, the peripheral wall 41 of the water washing ring 40
Washing windows 45 are provided at two locations corresponding to the diameter direction of the washing ring 40, and Sekiguchi windows 3 are provided at two locations corresponding to the diameter direction of the peripheral wall 31 of the blade mount 30 fixed inside the washing ring 40.
2 is opened and closed by the peripheral wall 41 of the flushing ring 40 and the flushing window 45. This blade mount 30 has a cylinder shaft 54 of a motor mounting cylinder 80 passed through a shaft hole 33 in the center, and a screw 35 is screwed into a threaded cylinder 63 protruding from the outer periphery of the upper surface of the motor mount 50 through the mounting hole 34 on the outer periphery. As shown in FIG. 7a, each triangular protrusion 44 of the string 43 fits into two locking recesses 62 provided on the outer periphery of the circular base 60. When the flush ring 40 is locked in the saddle position, the opening □ window 32 is completely closed, and each triangular protrusion 44 is inserted into the remaining two locking recesses 62 as shown in FIG.
When the flushing ring 40 is rotated to the position where the closing window 32 and the flushing window 45 are inserted, the closing window 32 and the flushing window 45 are closed.
, 45, and rotate the inner cutter block 20 with the outer cutter 24 immersed in water W, as shown in FIG. Accordingly, water is introduced to the upper surface of the blade mount 30 through the outer blade 24 along the direction of the arrow in the figure, and the beard shoulder Q accumulated on the blade mount 30 is discharged to the outside through the windows 32 and 45 along with the water. At the same time, the beard and grime adhering to the outer cutter 24 and inner cutter 23 are washed away. Furthermore, when shaving, the opening window 32 is closed with the water washing ring 40 to prevent beard debris from scattering on the face, hands, etc. during use. The above-mentioned washing ring 40 is integrally molded from synthetic resin, and the elastic string 43 is plated at the portion including the triangular projection 44, so that the string 43 and the triangular projection 44, which are made of synthetic resin, are not easily washed with water or soap. The plating layer prevents the surface hardness from decreasing due to contact with water or soap when shaving with a razor, and repeated use under such conditions may reduce the elasticity of the string 43 or cause the triangular protrusion 44 to deteriorate. It does not get crushed due to collision with the sawtooth protrusion 61, thus ensuring stable cooking operation over a long period of time. On the other hand, as shown in FIG. 4, the above-mentioned cap D is composed of a fan-shaped cylindrical cap holder 1 and a disc-shaped cap cover 10, each of which is made of elastic synthetic resin.

As shown in FIG. 10, the cap holder 1 has a locking claw 3 that projects from the lower end of the inner wall of the barrel 2 that extends downward from the circumference.
is a concave groove 2 formed on the entire side circumference of the outer cutter block 21.
7, it is detachably attached to the shaving blade B, that is, the outer cutter block 21. Iron is inserted into the groove 5 formed on the outer periphery of the cylindrical wall 4 protruding from the upper end of the cap holder 1, and into the round hole 6 provided at the center of the top surface of the cap holder 1 through a protrusion 12 protruding from the lower center surface. By doing so, it is rotatably attached to the cap holder 1 on the same axis. A plurality of closed windows 7 are provided at equal intervals along the circumference on the top surface of the cap holder 1, and through holes 13 of the same shape are formed in the cap cover 10 in correspondence with the open windows 7. When the cover 10 rotates on the upper surface of the cap holder 1, the entrance window 7 is opened and closed by allowing the entrance window 7 to pass through the through hole 13 or closing it with a portion other than the through hole 13. If the cap D is attached to protect the shaving blade B after washing the beard shoulders accumulated in the beard storage chamber C with water as described above, open the window 7 to speed up the drying process and dry the inside of the beard storage chamber C. When carrying an electric razor, the open window 7 is closed to prevent dirt from entering the shaving blade B and to prevent the beard shoulder remaining inside from coming out through the outer blade 24. . Here, as shown in FIG. 9, the protrusions 11 of the cap cover 10 protrude inward at two diametrically opposed locations at a constant length along the clouding direction, and these protrusions 11 , 11, a pair of engaging protrusions 14, 14 protrude at positions opposite to each other in the diametrical direction. The cap cover 10 is housed between a pair of stoppers 8, 8 that project vertically apart from each other, and the cap cover 10 can be rotated left and right within the range in which the engaging protrusion 14 moves between the two stoppers 8, 8, and is engaged with one of the stoppers 8. The position where the protrusion 14 is locked is the opening □ window 7 mentioned above.
The open position of the opening window 7 corresponds to the open position, and the closed position of the opening window 7 corresponds to the position where the engagement protrusion 14 is locked to the other stopper 8. Further, click protrusions 9 protrude from the outer periphery of the cylinder wall 4 between the pair of stoppers 8, 8 at positions close to each stopper 8, and the above-mentioned engaging protrusions 14 pass over each click protrusion 9 to form the above-mentioned opening/closing parts. The cap cover T
When rotating O, a click feeling is obtained when the engaging protrusion 14 passes over the click protrusion 9, and the cap cover 1
Of course, it is possible to easily confirm the transition from the open position and the closed position to the open position, and because the engaging protrusion 14 is locked between the stopper 8 and the click protrusion 9 in both the open and closed positions, respectively. , it is possible to prevent the cap cover 10 from inadvertently rotating and to reliably stop the cap cover 10 in either the open or closed position. In addition, a knob portion 15 is formed at a position facing in the diametrical direction on the outer circumferential surface of the barrel 2 of the cap holder 1 as a place to grasp with fingers when removing the entire cap D from the outer cutter block 21. 15, the locking pawl 3 that locks the cap ○ to the outer cutter block 21 is located when the circumferential wall of the cylinder 2 near the grip 15 is pushed inward by the force of the fingers applied to the grip 15. The circumferential wall of the arm cylinder 2 near the locking claw 3 is provided in such a way that it competes outward so as to be removed from the concave groove 27. In other words, each knob portion 15 is formed at a position offset from the locking pawl 3 by approximately 90 degrees along the circumferential direction. Note that knurling teeth 16 are formed on the green circumference of the cap cover 10, and the cap cover 10 has knurling teeth 16.
This prevents slipping during rotating operations. As shown in FIG. 11, side covers 70 and 71 in the form of band plates are attached to both sides of the housing A over substantially the entire length thereof, the surfaces of which are provided with irregularities 72 to prevent slipping.

As mentioned above, the side covers 70 and 71 are used because the hair can be removed by washing with water, and because this electric razor has a waterproof structure, it can be shaved using soap or shaving cream. , is attached to the housing A in order to prevent the electric shaver from slipping from the hand due to water or soap. The locking hole 75 and the locking recess 7 provided on the top surface of the bottom cover 82 of the battery block E fixed to the lower end of the housing A
6, and by inserting protrusions 79 that protrude above and below a plurality of ribs 78 that protrude from the sides of the housing A into recesses 77 formed on the top and bottom of the back surface, respectively.
Fixed. If each side cover 70, 71 is made of a soft material such as rubber, a soft feel can be obtained. Incidentally, in this embodiment, a storage battery is used as the battery 80, and this battery 80 is held in a battery block E shown in FIGS. 12 and 13.

The battery block E mainly includes a battery 8 as shown in the figure.
0, and a bottom cover 82 that closes the lower end of the housing A. The battery box 81 and the bottom lid 82 are each molded from synthetic resin, and a pair of hooks 83 protruding from the upper end of the bottom lid 82 are attached to the battery box 81 and the bottom lid 82, respectively.
The bottom cover 82 and the battery box 81 are connected by being inserted into a recessed step 84 provided at the lower end of the battery box 81 . This bottom cover 82 is installed by inserting a substantially hexagonal base 85 protruding from the upper surface into the lower end entrance of the housing A, and abutting the flange 86 on the outer periphery of the lower end against the periphery of the lower end opening of the housing A, and penetrating the bottom cover 82. It is fixed to the housing A by screwing the pin 88 through the hole 87 into the screw hole 89 on the lower surface of the housing A, and the ○ ring 90 iron-bonded to the base periphery of the base 85 comes into pressure contact with the lower end of the housing A. The space between the bottom cover 82 and the housing A is watertightly closed. This bottom cover 82 includes a pair of energizing pins 91 connected to an adapter G that converts commercial power into step-down rectification to generate DC power in order to charge the battery 80 with commercial power, a backflow prevention diode 92,
Light emitting diode 93 that lights up when connected to adapter G
, a current limiting resistor 94, and a printed board 95 connecting these on the bottom cover 82 are attached. The printed board 95 has a central hole 9
The convex portion 97 protruding from the center of the base 85 is inserted into the base 8 to form the base 8.
5 is positioned on the top surface, and as shown in FIG.
The upper ends of the regular pins 91 passing through the two are caulked and fixed to the printed board 95, respectively, and the printed board 95 is fixed on the base 85. As shown in the figure, each energizing pin 91 has its lower end placed in a recess 98 provided on the bottom surface of the bottom cover 82 and its upper end placed on the bottom cover 82.
The groove 1001 formed between the pair of flanges protruding from the upper end is inserted into the through hole 99 of the ring 101, and the groove 1001 is pressed into contact with the circumference of the through hole 99, thereby connecting the energizing pin 91 and the bottom cover 82. The lower end of the housing A is watertightly closed by the bottom cover 82. The backflow prevention diode 92, light emitting diode 93, and current limiting resistor 94 are fixed to the printed board 95 by inserting and fixing their legs into holes in the printed board 95, respectively, and a circuit formed on the printed board 95 connects one end of each to the printed board 95. A pair of lead wires 1 connected to the printed board 95
04,105, battery 80, anode metal fitting 106, reed switch 170, anode spring 107 and cathode spring 108
The motor 25 connected to the anode spring 107 and the cathode spring 108 constitutes an electric circuit shown in FIG. A circumferential groove 110 is provided at the lower end of each of the energizing pins 91.
As shown in FIGS. 18 and 19, an adapter G for charging the battery has a protrusion 131 protruding in the center inserted into a recess 98 on the lower surface of the bottom cover 82. When connected to the housing A, the dowels 133 formed on each of the pair of springs 132 arranged in the protruding base portion 131 are inserted into the circumferential groove 110 of each energizing pin 91 and locked, so that the energizing pin 91 The degree of connection between the contact spring 132 and the contact spring 132 is increased to prevent poor contact between the two, and the connection between the energizing pin 91 and the contact spring 132 prevents the housing A from falling downward even when the adapter G is placed upward. . Each contact spring 132 is fixed on a substrate 135 within the adapter G;
It is connected to a plug blade 134 that is connected to a commercial power supply via a step-down rectifier circuit (not shown), and is inserted through each insertion hole 136 on the top surface of the protrusion part 131, and the lower end is inserted into each part within the protrusion part 131. The battery 80 is charged by supplying direct current power obtained by step-down rectifying a commercial power source to the batteries 8 through each energizing pin 91 connected to the contact spring 132 . FIGS. 20 and 21 show another example for increasing the mechanical bonding force between the housing A and the adapter G using current-carrying pins 91, in which a convex band 138 formed on each current-carrying pin 91 is inserted into the insertion hole, respectively. Each energizing pin 91 is elastically locked to a locking collar 139 on the periphery of the pin 136, and the lower end of each energizing pin 91 is inserted into each approximately U-shaped contact spring 132 to electrically connect each contact spring 132. . This insertion hole 136 has a protrusion 131 made of elastic synthetic resin.
A slit 140 is formed on the upper surface of the insertion hole 136 so that the periphery of the insertion hole 136 is expanded by the protruding band 138 when each energizing pin 91 is inserted, and the protruding band 138 protrudes from the insertion hole 136. When it advances into the part 131, the insertion hole 136 closes to its original size due to the elastic restoring force of the synthetic resin, and the locking flange 139 around the insertion hole 136 closes to the convex band 1.
By the way, the above-mentioned light emitting diode 93, which is engaged with the energizing pin 91 and connected to the adapter G, has a pair of lead wires soldered to a printed board 95, as shown in FIGS. 14 and 15. A boss 142 that protrudes from the upper surface of the convex portion 97 of the bottom cover 82 is protruded between 93a, and the boss 142 is used as a positioning member to align the back surface of each light emitting portion 93b with the convex portion 97.
It is attached directly to the bottom cover 82 by being loosely attached to the circumferential surface.
Housing A at a position corresponding to this light emitting diode 93
As shown in FIG. 11, a display window 146 is formed,
The display window 146 is covered with a transparent lamp cover 148, as shown in FIG. 24, and the lighting of the light emitting diode 93 is displayed through the lamp cover 148. This lamp cover 148 has a hook 149 protruding from the back surface of the display window 1.
The through hole 15 on the bottom of the housing A is fixed to the housing A, and the through hole 150 penetrating inside and outside of the housing A is made watertight by the ○ ring 151 interposed between the green around the through hole 150 and the lamp cover 148. is blocked. In addition, when housing A is integrally molded from transparent synthetic resin, the portion that will become the display window is covered with tape 15 as shown in FIG.
If the entire remaining housing A (shown in the perspective view in the figure) is painted after masking in Step 3, the display window will be formed just by removing the tape 153, and the lamp cover 148 and circle ring 151 in the above embodiment will be unnecessary. becomes. Returning to the explanation of FIGS. 12 and 13, the battery box 81 is molded from synthetic resin, and the batteries 80 are housed between both walls 160 that protrude from both the upper and lower ends, and are mounted on spring holders 161 that protrude from the upper end. The anode spring 107 and the cathode spring 108 are fixed, and the anode metal fitting 106 and the reed switch 170 are fixed to one side wall 162.

The above anode spring 107, cathode spring 108 and anode metal fitting 1
06 is thermally welded to the battery box 81 by a boss 163 protruding from a spring holder 161 and a side wall 162, respectively, and electrode plates 164 and 165 protruding from both ends of the battery 80 are attached to the rear end of the anode metal fitting 106 and the rear end of the cathode spring 108, respectively. each merit and demerit 1
66, 167, and each lead wire 10
4 and 105 are soldered to the terminal block 168 of the anode metal fitting 106 and the notch 169 at the rear end of the cathode spring 108, respectively, to form a power supply circuit from the energizing pin 91 to the battery. A member 1 in which the tips of lead wires 170a extending to both ends of the reed switch 17 protrude from the side wall 162 of the battery box 81, respectively.
The lead wire 170a is inserted into the kerf 172 of 71 and positioned, and the tip of the lead wire 170a is fixed by soldering to the switch terminal block 173 at the end of the anode fitting 106 and the switch terminal block 174 at the rear end of the anode spring 107. As will be described later, the circuit between the battery 80 and the motor 25 is opened and closed in response to the movement of the permanent magnet 182 along the outer surface of the housing A. As shown in FIG. 13, the battery block E having such a configuration includes an anode spring 10 that serves as a connection terminal to the motor 25.
7, the cathode spring 108, and the current-carrying pin 91 that serves as the connection terminal to the adapter G. All the parts constituting the power supply circuit, including the current-carrying pin 91 that serves as the connection terminal to the adapter G, are integrated and assembled into one body. In addition to being easy to do by simply fixing it to A, as shown in Figure 22,
You can check whether the charging circuit is working properly by connecting an ammeter for checking the charging current between the adapter G and the energizing pin 91 and checking that the light emitting diode 93 is lit. An ammeter 1 for measuring the load current is connected between the reed switch 17 and the anode spring 107 or the cathode spring 108, and the negative current flow of the motor 25 can be measured by activating the permanent magnet 182 between the reed switch 17 and the reed switch 17. by the way,
The flushable electric shaver that charges the battery 80 by connecting the adapter G as described above does not perform so-called floating charging, in which the motor 25 is driven while charging the battery 80. When charging the battery 80, it is necessary to open the circuit between the motor 25 and the battery 80 to prevent current from flowing to the motor 25.

In other words, the current capacity of the adapter G used in this type of electric stove is not set to a value larger than the capacity required for charging the battery 80, and when charging the battery 80, the current capacity of the adapter G used is not set to a value larger than the capacity required for charging the battery 80. If the circuit between the motor 25 and the battery 80 is closed, an overload will occur and the current capacity of the adapter G will be insufficient, and the battery 80 will not be charged. Therefore, when connecting the adapter G, it is necessary to open the circuit between the motor 25 and the battery 80. be. The switch block F used in this embodiment includes means for opening the lead switch 170 to open the circuit between the motor 25 and the battery 80 during charging, and the switch block F will be described below. FIG. 24 shows parts constituting this switch block F, and the switch block F is assembled to one side of the housing A using the one side cover 71 mentioned above. switch block F
The switch base 180 is vertically movably housed in the space formed between the side cover 71 and the side surface of the housing A, and the outer surface of the side cover 71 is connected to the switch base 180. A switch handle 181 that is manually moved, a permanent magnet 182 that is held on the back side of the switch base 180 to open and close the IJ-do switch 170, a lock button 183 that locks the switch handle 181 to the stop position of the motor 25, and the above-mentioned It consists of a switch rod 187 having a rack 186 that meshes with a rack 184 of a switch base 181 via a pinion 185. All of the above components are attached to the side cover 71, and each component is temporarily held by the side cover 71. Then, by attaching the side cover 71 to the housing A, the switch block F is assembled to the housing A. The switch handle 181 has a long groove hole 18 formed at the upper end of the side cover 71 with a pair of hook claws 188 projecting from the back side.
6 and is attached to the side cover 71 so as to be slidable vertically, and the switch handle 1
The locking piece 190 protruding from the back side of the switch base 18
The switch base 18 is connected to the mounting hole 191 provided at the upper end of the switch base 18. The permanent magnet 182 is press-fitted into the frame 192 on the back side of the upper end of the switch base 180, and is attached to the housing A.
Switch handle 181 in recess 193 at upper end of side surface
The reed switch 170 is moved to open and close the reed switch 170 located inside the housing A on the back side of the recess 193.
is closed and the motor 25 is driven. lock button 183
The spring pieces 195 extending at both ends are pressed against the upper end of the side surface of the housing A and the surface of the switch base 180, so that the switch handle 181 is biased by the spring, and the switch is inserted through the hole 194 provided in the side cover 71. handle 18
1 Fill the lock hole 196 in the center with iron, and attach the switch handle 1
81 and the switch base 180, and when the switch handle 181 is in the lower position where the motor 25 is stopped, the lock hole 19
6, a lock pin 1 protrudes from the surface of the switch handle 181 and protrudes from the side surface of the base of the lock button 183.
As shown in FIG. 3A, the switch handle 181 will be stopped at this position unless the lock button 183 is pushed in and the switch handle 181 will be stopped in this position unless the lock button 183 is pushed in. Prevent movement. To drive the motor 25, the lock button 183 is pushed in to disengage the lock pin 197 and the crest 198, and the switch handle 181 is moved upward.If the switch handle 181 is returned to the lower position, The lock pin 197 returns to the locked position along the gentle slope of the peak 198. On the other hand, a pair of elastic arms 200 extend from the switch board 180, and while the switch board 180 is moving up and down, each arm 200
The protrusions 201 at the ends of the switch handle 181 elastically deform the respective arms 200 and go over the click protrusions 202 formed on both sides of the hair surface of the side cover 71 shown in FIG. 11 as shown in FIG. It is designed to give clickability to the movement of the image. 184 on one side of the flat plate portion 203 at the lower end of this switch base 180.
As shown in FIG. The long shaft hole 206 is filled with iron. The switch rod 187 has a rack 186 formed at its upper end engaged with the pinion 185, and the flat plate portion 2
As shown in FIG.
It passes through the through hole 208 provided in the bottom cover 82 of the battery block B at a position protruding to the side of the housing A, and the 25th
As shown in Figures a and b, respectively, when the switch handle 181 is in the on position, that is, in the upper position, the lower end of the switch rod 187 largely protrudes through the through hole 208, and the switch handle 181 is in the off position, that is, in the lower position. When pressed down, each rack 184, 186 moves in the opposite direction via the pinion 185, as shown by the arrow in the figure, and the lower end of the switch rod 187 is pulled up a certain distance x above its own position. . On the other hand, on the upper surface of the adapter G, a switch pin 210 corresponding to the switch rod 187 protrudes with a length that is slightly longer than the stroke X of the switch rod 187, and connects the adapter G. When charging, the switch pin 210 is inserted into the recessed step 211 on the bottom of the bottom cover 82,
The lower end of the switch rod 187 protruding into the recessed step 211 is pushed up, the switch base 180 is forcibly lowered, and the power to the motor 25 is turned off. Therefore, when charging, even if the switch handle 181 is in the on position, connecting the adapter G automatically returns the switch handle 181 to the off position, opening the power circuit between the motor 25 and the battery 80. As a result, the charging current supplied from the adapter G during charging is prevented from flowing across the motor 25, and the charging current can be passed to the battery 80 without fail, thereby eliminating charging errors. In this example, as described above, as a means for opening the circuit between the motor 25 and the battery 80 during charging, a switch pin is provided beside the adapter G with a switch base 180 that moves together with the switch handle 181 that is operated during shaving. 210, there is no need to provide a separate switch in the power supply circuit to prevent charging errors, and therefore the circuit resistance does not increase unlike when a separate switch is provided. It is possible to demonstrate highly reliable performance with a simple electrical circuit.

[Brief explanation of drawings]

Fig. 1 is an overall perspective view showing one embodiment of the present invention, Fig. 2 is a partially cutaway side view of the same with the cap removed, and Figs. 3 a and b.
, c are a partially cutaway front view, a partially cutaway side view, and a partially cutaway bottom view excluding the same cap and shaving blade, and Fig. 4 is a part attached to the upper end of the housing including the same cap and shaving blade. Fig. 5 is a top view showing the motor mounting tube used in the above unit housed in the housing, and Fig. 6 is a partially cutaway front view showing the mounting section between the motor mounting section and the motor in the above unit. Figures 7a and 7b are explanatory diagrams showing the action of the above-mentioned flush ring, respectively. Figure 8 is an explanatory diagram showing the flow of water during flushing of the above-mentioned electric shaver. Figure 9 is the structure of the same above-mentioned cap. 10 is a cross-sectional view taken along the line X-X in FIG. 9, FIG. 11 is a partially omitted perspective view showing the housing and side cover used in the above, and FIG.
The figure is an exploded perspective view showing a group of parts constituting the battery block used in the above, FIG. 13 is a perspective view showing the same battery block, FIG. 14 is a top view of the bottom cover of the same battery block, and FIG. 16 is a top view of the bottom cover of the same battery block. Partially cutaway side view of the bottom cover, Figure 16 is the same as above.
4 is a sectional view taken along the Y-Y line in Figure 4, Figure 17 is an explanatory diagram showing the electrical circuit used in the same as above, Figure 18 is a perspective view showing the state in which it is connected to the same adapter as above, and Figure 19 is a diagram showing the same as the above adapter. Partially cutaway vertical sectional view showing the internal structure of the connection point,
Fig. 20 is a partially cutaway vertical sectional view showing an example of the connection structure with the above adapter, Fig. 21 is a partially omitted perspective view of the adapter used in the above, and Fig. 22 is an inspection of the battery block shown in the above. Fig. 23 is a perspective view showing an example of the housing used in the above, and Fig. 24 is an exploded view showing the parts and housing constituting the switch block used in the above. Perspective view, Figure 25a
, b are explanatory diagrams showing the action of the switch rod in the same switch block, respectively, where A is a housing, B is a shaving blade, C is a beard storage chamber, D is a cap, 1 is a cap holder, 2 is a garden wall, 3 is a locking claw, 7 is a closing window, 9 is a click projection, 10 is a cap cover, 13 is a through hole, 27
is a concave groove. Figure - Figure 2 Figure 3 Figure 5 Figure 6 Figure 8 Figure 4 Figure 7 Figure 9 Figure '0 Figure ll Figure 12 Figure B - Figure 4 - Figure 5 Figure 6 - Figure 7 - Figure 8 - Figure 9 Figure 20 Figure 2! Figure 22 Figure 23 Figure 25

Claims (1)

[Claims] 1. A shaving blade is attached to the upper end of a housing that houses a battery therein, and a shaving chamber is formed between the shaving blade and the upper end of the housing and is watertightly isolated from the inside of the housing. In a flushable electric razor in which beard debris accumulated in a reservoir chamber is drained to the outside by water introduced into the reservoir chamber, a cap that covers the outer blade surface of the shaving blade is detachably attached to the shaving blade, A cap structure for a water-washable electric shaver characterized in that an opening window that can be opened and closed is formed in the cap at a position corresponding to the blade surface on the outer surface of the shaving blade. 2. A surrounding wall made of an elastic material that surrounds the entire upper circumference of the shaving blade extends from the periphery of the cap, and locking claws that protrude from a portion of the surrounding wall in the circumferential direction are formed on the outer circumferential surface of the shaving blade. A knob part is formed in a part of the surrounding wall in the circumferential direction as a part that locks in the groove and grips the cap when removing it from the shaving blade. According to a patent claim, the part of the surrounding wall having the locking claws is formed at a position such that when the locking claws 3 and the concave grooves are disengaged, a part of the surrounding wall having the locking claws elastically opens to the outside. The cap structure of the flushable electric shaver described in Scope 1. 3. The cap consists of a cap holder that is attached to the shaving blade, and a cap cover that is attached to the cap holder and overlaps the top surface of the cap holder. The cap cover is connected to the cap holder so as to be movable between an open position where the opening window communicates with the opening window and a closed position where the opening window is closed at a portion other than the through hole. 2. The cap structure for a water-washable electric shaver according to claim 1, wherein the cap cover is disengaged from the click engagement when the cap cover is moved from the open position to the closed position and from the closed position to the open position.