JPS58218987A - Counter apparatus of electric shaver - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a counter device for an electric shaver.

By displaying the number of times the electric razor has been used, this counter device predicts when it is time to replace the built-in battery and when to charge the storage battery, allowing you to always shave with sufficient battery capacity and prevent the battery from running out mid-shave. This was designed to eliminate any inconvenience that may occur.

However, this counter device is difficult to operate because it needs to be activated every time the electric shaver is used.

It was difficult to use and had the disadvantage that one operation could be forgotten.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a counter device for a 1R razor that allows the user to know in advance when it is time to charge or change the battery, which simplifies the construction of the razor, and prevents the user from forgetting to operate the razor.

This invention is characterized in that the display means of the counter device is linked to the switch that operates the blade drive motor.

For this reason, 1! When using the electric razor, there is no need to separately operate the counter device other than the switch, and the operation is easy, and since the display section is actually operated by the switch operation, there is no chance of forgetting to operate the display section. Therefore, the count display of the counter device is always reliable.

A ti razor to which an embodiment of the present invention is applied is shown in FIGS. 1 to 17. In other words, this electric razor is
As shown in Figure 2, it is roughly divided into housing block A, drive block B, electric block C, and counter block D.
First, the housing block A is formed by connecting an upper housing 1 and a lower housing 2 at a pair of bosses 3.4 with connecting screws 5 (FIG. 3). Reference numeral 6 in FIG. 5 is a fitting portion of the lid portion 1a. The drive unit 10B has a blade block 7, a blade mount 8, and a motor block 9 as shown in Figure 2.
, a switch handle 10, and the blade block 7 includes an outer cutter 12 attached to an outer cutter frame 11 and an inner cutter body 13 (a second (Figure 3). Although not shown, a cap for protecting the outer cutter 12 is engaged with the circumferential groove 14 of the outer cutter frame 110.

The motor block 9 has a cylindrical shape in which a motor 15 is formed with a flat part 16 on one opposite side surface, and a pair of motor terminals 1 on the rear end surface.
7 (Fig. 3) and the motor shaft 1 protrudes from the front end surface.
A joint 19 is attached to 8, and this joint 19 is press-fitted into and engaged with the inner cutter body 13 (FIG. 3).

The blade mounting base 8 has a beard waste storage part 2 which serves as a partition plate in the middle part of the cylinder.
0, and a female thread 21 for attaching the outer cutter frame 11 is formed on the inner periphery of the upper end. In addition, the lower end of the blade mount 8 has an inward hook 22 as shown in Fig. 5i.
, the rear edge of the motor 15 is locked with seven hooks 22 by inserting the motor 15 from its lower end. At this time, the motor shaft 18 of the motor 15 and the joint 19 protrude from the central hole 23 of the whisker waste storage portion 20 in the direction h. This blade mount 8
is attached by being press-fitted into the hole 24 of the head portion 1a of the upper housing 1. Switch hand A/10 is ring-shaped,
As shown in FIGS. 3 and 5, it is rotatably fitted between the upper housing 1 and the outer collar 25 of the blade mount 8. 26
is its guide rib. This switch hand/L'I
O has a pair of knob protrusions 27 on the outer surface, and the knob protrusions 2
As shown in FIG.
protrudes continuously, and a lock button 30 is attached to the tip of the elastic arm 29.
is housed, and a pair of guide arms 31 are inserted from both sides of the lock button 30.
is protruded, and a lock protrusion 3 is formed inside the lock button 30.
2 protrudes radially inward. When the elastic arm 29 is elastically bent at right angles as shown in FIG. 8, the lock button 30 projects outward from the notch 28 and the lock protrusion 32 assumes a hanging position. In the state (3) in which the hand 1v10 is attached to the blade mount 8, the protrusions 33 at both ends of the guide arm 31 come into sliding elastic contact with the outer surface of the blade mount 8 due to the spring action of the elastic arm 29, and this guide arm With the support of 31
The button 30 protrudes from the notch 28 by a predetermined amount, and the lock protrusion 32 engages with one of a pair of locking recesses 34 and 35 formed at the edge of the hole 240 of the upper housing 10.

Therefore, the rotation of the switch hand/L'IO is restricted by the engagement of the lock protrusion 32 in the recess 34 or 35, but when the lock button 30 is pushed in with a finger, the guide arm 3
1 is bent, and the lock protrusion 32 is engaged with the engagement recess 34 or 35.
The hand 1v10 can be rotated by separating from the lock protrusion 3.
2 is located in the other engagement recess 35 straddling 34 and when you release your finger, the lock button 30 returns to that position and the lock protrusion 32
is locked in the recess 35 or 34 and becomes the locked position again. It is assumed that the hand/1/10 is operated to turn on or off the switch by moving between these two positions. Hand/L/10 also includes a rotation range regulating protrusion 36 that protrudes radially inward and outward from the hand 1v10 at a position approximately 90 degrees apart from the knob protrusion 27, and a switch protrusion 37 that hangs in the direction of the artist at the same position. There is a square hole 38 formed in the vicinity of the hole 24 of the upper housing 1 and enters into the inside of the housing 1. Further, the rotation range regulating protrusion 36 is located within a cutout recess 39 of a counter pro-took D to be described later, and the rotation range of the hand Iv10 is restricted to a range in which the protrusion 36 can move within the recess 39, and the locking operation is performed. i.

In addition, the switch hand /l/10 has a click protrusion 40 on the opposite side of the regulation dice 36 (see figure 2).This is arranged along the inner circumference of the hand /1/10, and both ends are hands) vlo This click projection 40 faces a projection 42 formed on the outer cutter mounting base 8' (Fig. 3), and the hand/I/10 is When operating within the rotation range (switch operation range), the click protrusion 40 completely passes over the protrusion 42, thereby creating a click action.

As a switch block, in addition to FjtJ switch hand/L'IO, as shown in Fig. 2, switch terminal 4 is used.
3 and a switch chassis 44. First, the Sui-Sochi inner core 43, which is a movable part, is slidably fitted and held in the upper part of the switch chassis 44 by a groove 45, as shown in FIG.
and an engaging protrusion 46, and the switch chassis 4
A conductive plate 48 that connects and disconnects the pair of switch contacts 47 of 4.
and has four portions 49 formed on the upper surface thereof to engage with the lower end portions of the switch protrusions 37. switch chassis 44
is a pair of contact pieces 51., both ends of which are press-fitted and held in support recesses 50 formed in the lower housing 2 (FIG. 4), and are in contact with the motor terminal 17 from the main body 44a of the chassis 44. −
52 is overhanging. 53 is the guide. In addition, a pair of conductive plates 54 are protruded from the upper surface of one end of the chassis 440 main body 44a, and a relay terminal 55 is simultaneously molded on the tip thereof. be. Furthermore, a battery connection plate 57 is made to protrude from the upper surface of the other end of the chassis body 44a.

This chassis 44 has contact pieces 51, 52 . The conductive plate 54° connection piece 56 and the battery connection plate 57 are formed by punching a thin metal plate made of copper or the like in a pattern, and simultaneously molding the chassis body 44a and the relay terminal 55, cutting each pattern at a predetermined position, and making the connections as shown in the figure. It is formed by bending the face, making it possible for mass production. In this way, as the switch hand A/100 turns on and off, the switch protrusion 37
When the protrusion 37 moves, the tip of the protrusion 37 engages with the four parts 49 of the switch terminal 43, so the switch terminal 43 moves, and the switch contact 47 opens and closes, thereby turning the power supply to the motor 15 on and off. be done.

The counter prowork D has a flat base 5 as shown in FIG.
A counter component is assembled into the upper housing 1 and placed in the accommodation recess 59 of the base 58 formed on the upper surface of the upper housing 1.
The hooks 60 formed on both sides of 8 are connected to the holes 61 by the hooks 60 formed in the recesses 59. 1. , can be installed. As described above, the surface of the base 58 has a recess 39 at the center of the front edge,
When attached to the upper housing l, the switch hand/1/100 rotation range regulating protrusion 36 is located within the four parts 39.

On the back side of the base 58, there are three shafts 62 to 6 as shown in FIG.
4. A semi-circular display slit 65 between the axes 62-64.
A knob insertion hole 66 is formed on the lower side of the base 58. A display board 67 is rotatably supported on the shaft 62.
The shafts 63 and 64 have a retaining split 68 formed at their tips.
There is a feed car 69. A feed lever 70 is attached to each of the shafts 64 to prevent them from coming off. The display plate 67 is disc-shaped, and a partially toothed gear 71 is formed on a part of its outer peripheral surface, that is, in a range where the display plate 67 can rotate up to a predetermined maximum value on the scale, and a color display portion 72 is formed in correspondence with the display slit 65. (FIG. 1), a cam portion 73't- is formed in the middle on the opposite side of the color display portion 72, and a cam surface 74 on the outer periphery of this cam portion is rotated in a direction opposite to the direction of return rotation of the display plate 67 ( (forward rotation) so that the diameter gradually becomes shorter. Further, a stop flange protrusion 75 is formed at a position a predetermined distance away from the center on the cam portion side of the display plate 67, and a rotation regulating arcuate groove 76 is formed at a position symmetrical to the color display portion 72 of the display plate 67. FIG.

(FIG. 11), when the shaft 62 is rotated, a protrusion 77 formed on the base 58 engages with the arcuate groove 36. A feed wheel 69 supported by the shaft 63 is comprised of a gear 78 and a pawl 11E79 that mesh with the partially toothed gear 71 of the display plate 67, and when the feed wheel 69 rotates, the display plate 67 rotates. The feed lever 70 has a lever portion 81 extending radially from the bearing portion 80.
It consists of an LT-shaped spring shaft 82 integrally formed at the tip of the lever part 81, and an L-shaped elastic pawl 83 projecting from the bearing part 80 at a substantially right angle to the lever part 81, and is pivotally supported on the shaft 64. Then, as shown in FIG. 11, the tip of the spring portion 82 engages with the spring receiving protrusion 84 formed on the base 58, and due to the spring action, the vicinity of the tip of the lever portion 81 engages with the spring receiving protrusion 84 formed on the base 58. It is supported by the projection 85, and at this time, the tip of the elastic pawl 83 faces the mold wheel 79 of the feed wheel 69. Also, the base 58 is on top
When attached to the housing 1, as shown in FIG. 11, the tip and end of the V-bar part 81 is positioned so as to face toward the ON operation direction of the switch protrusion 37.
When the Sochi Hand/L'lOi is turned on, the lever part 81 is pushed by the switch protrusion 3.7 and rotates to the imaginary line in FIG. 11, and the spring part 82 is elastically deformed. Engaging with the groove, the mold wheel 79 is fed by one thread, thereby rotating the display plate 67 by a predetermined angle.

The operator 86 serving as a return means has a substantially rectangular flat 4-shape as shown in FIG. A button 92 with a knob 91 is held in the groove of the holding portion 89 by press fitting, and is attached to a button engaging protrusion 90 formed on the surface of the operator 86.
Fit the recess 93 of the button 92 into the base 5.
8 through the hole 66 and formed in the base 58.
The button 92 is slidably engaged with the button 92 , thereby supporting the operator 86 in a longitudinal direction of the base 58 in a freely swivel manner under the action of the spring portion 87 . The positioning protrusion 94 is the positioning rib 9 of the base 58.
5 becomes a stable part.

In the stable part of the operator 86, a claw 96, which serves as a locking means that also has elasticity, is formed with a folded part 96a at the front end.
9, and its pawl 96 holds the feed wheel 69 and prevents it from reversing. In addition, the return arm 97 protruding from the shoulder of the front end of the operator 86 is opposed to the cam surface 74 of the cam portion 73 (Fig. 12), and, as will be explained later, returns to the side of the operator 86 for initial drive. A protrusion 98 for rotating the display plate upward is formed to face the protrusion 75.

The operation of this counter device is such that when the switch handle 10 is turned from OFF to ON, the switch protrusion 37 moves from the solid line to the imaginary line as shown in FIG. The part 81 is pushed by the switch protrusion 37 and rotates by bending the spring part 82 as shown in line 11, and the pawl 83 rotates accordingly to engage the RVC of the mold wheel 79 and release the mold. The wheel 79 is rotated by one rotation. This rotation of the claw I [79 causes the gear 78° 71 to rotate, and the display plate 67 is rotated. 72 appears and moves by one scale corresponding to one use on the display slit 65.Switch hand/
L/10tl - When turned off, the lever part 81 is released from the state where it was pressed by the switch protrusion 37, so the spring part 8
2, the lever part 81 returns and at the same time the claw 83
The nail evil 79 leaves. At this time, the claw 96 of the operator 86 is elastically engaged with the model wheel 79, so there is no reverse rotation and no excessive rotation.

Similarly, if you turn Sui Sochi Hand/l/10 from off to on again, the display board 67 will further rotate by a predetermined angle, and like this! The display board 67 continues to rotate according to the number of times the perfect razor is used, and the display board 67 continues to rotate. J.v) The number of times of use is displayed by the number of tick marks from one end of the display section 72 shown in 65. Therefore, each time the user uses the electric shaver, he or she can charge the battery and know how many times the shaver has been used. Furthermore, generally speaking, once the display plate 67 has finished rotating by the number of teeth of the gear 71, which is set according to the maximum speed, the feed wheel 69 will only rotate even if the Sui-Sochi handle 10 is turned on or off. The front center plate stops rotating by 67 degrees. Further rotation of the reed display board 67 is prevented by the stopper protrusion 75 of the display board 67.
This is restricted by the engagement of the protrusion 98 of the operator 86 with the operator 86 and by the engagement of the protrusion 77 of the operator 86 with the circular arc groove 76 of the display plate 670.

Therefore, when returning the display plate 67tl, push down the return knob 91 appearing on the outer surface of the base 58 in the direction of arrow N in FIG.
move in the same direction against the spring action of the spring portion 87. This movement causes the pawl 96 of the operator 86 to move the mold wheel 7 of the feed wheel 69.
9, the feed wheel 69 becomes free, and the protrusion 98 hits the stopper protrusion 75, and the protrusion 98 pushes the stopper protrusion 75, causing the display plate 67 to be reversed in the direction of arrow M in the initial stage of return. Rotate. Furthermore, operator 8
6 continues the movement #J, the side surface of the return arm 97 comes into contact with the cam surface 74 of the cam portion 73, and by pushing the cam surface 74 with the arm 97, the display board 67 continues to reverse as shown in FIG. Return to the original position and return to zero. During this time, the gear 71 of the display board 67 meshes with the gear 78 of the feed wheel 69. On the other hand, when the return knob 91 is released, both the operator 86 and the button 92 return to their original positions due to the action of the spring portion 87, the operator 86 is supported by the protrusion 95, and the pawl 96 is elastically engaged with the mold wheel 79 to form the mold. Hold the car 79. In this way, when the battery is in a so-called dead state, by charging the battery and returning the display board to zero, the user can charge the battery and return it to zero according to the power consumed by one razor use. The maximum number of uses is known and the city.

Individuals can decide how many times the pond can be used until its lifespan.
At the same time, it is possible to always obtain a sufficient operating state until the number of times of shaving is reached, so it is possible to avoid running out of battery in the middle of shaving.

Electrical block C, printed circuit board 100 on which storage battery 99° charging circuit components are mounted as shown in Fig. 2-. It consists of a plug chassis 101 and a plug 102.

Printed circuit board 100 yen, transformer 103. resistance 104
° Rectifier 105. #1 where charging circuit components such as a capacitor 106 are mounted, or where a display light emitting diode 107 and the like are mounted, the light diode 107 is inserted into the window 10 of the counter base 58 through a through hole 108 formed in the housing l.
I am trying to make 9 areas emit light. This printed circuit board
OO has a notch 110 formed on one side of both tlFM members to escape the posts 3 and 4 of the housing 1.2 as shown in FIG. and connection holes 111 to 113 on the side of one end.
, and the tip of the connecting piece 56 of the switch chassis 44 is inserted into the connecting hole 113 on the front end side and connected in a double-tight manner by soldering. As shown in FIGS. 14 and 17, the push switch ν-shi 101 has a plug contact 114 and a contact 115 that opens the motor drive circuit in the case of fog.
A pair of conductive plates 118 are extended from the rear t@117 of the main body 116 that supports 02 in a slidable manner, and a relay terminal 119 f is provided at a part of the tip thereof, and a pair of conductive plates 118 are provided at a right angle in the same plane as the conductive plate 118 from the relay terminal 119. A beautiful connecting piece 120 is projected toward the bottom of the image, the conductive plate 118'f is folded back, and the relay terminals 119 are arranged on the main body 116, and this connecting piece 120 is attached to the bullet board 1.
000 connecting hole 111K connect. In addition, a pair of L-shaped conductive plates 1 are installed from the soil surface at right angles to the plug sliding direction of the main body 116.
21 is extended, a relay terminal 122 is formed at its tip as described above, and a beautiful connecting piece 123 is formed at its tip, which is connected to the connection hole 112 of the printed circuit board 100.

These beautiful connection pieces 120 and 123, including the beautiful shape W of the switch chassis 44 and the continuation piece 56, are inserted into the connection holes 111 to 113 of the printed circuit board 100 and are temporarily pressed. It has the function of preventing the copper foil from peeling off. One hook portion 12 of the conductive plate 121
3 is wide and forms an N through hole 124, and the storage battery 9
The four poles of the storage battery 99 are connected to the connection hole 124, and the other pole of the storage battery 99 is connected to the connection hole 57a of the battery connection plate 57 of the switch chassis 44. It is stored in ru(@
', Figure 4). 99a This is the support 1 provided on the Iri lower housing 2.

The plug chassis 101 is formed by punching out a single conductive plate 1 into a predetermined wiring pattern, and forming a main body 116 and a relay terminal 119.
, 122 are simultaneously molded, and the conductive plates 118 and 121 are bent at a predetermined position from the pattern as shown by the solid line from the imaginary line in FIG. 17 during use.
We are currently working on mass production. The bladder 102 has a pair of plug blades 125 integrated with a main body 126 formed at the same time, and a knob 127 extending from the integrated body is exposed by passing it through the slit 128 at the rear end of the housing 1 (FIG. 16). The plug blade 126 is made to come out and go out from the /S housing 1.2 by operating the knob.

"'I" plug blade [s indicates that its side edge is in constant sliding contact with the plug contact 1 of the plug chassis 101], and a short circuit plate 129 is provided on the side of the plug body 126 facing the chassis to prevent short circuits. The plate 129 has one open point 11 when the plug 102 is stored.
5t - Bridged so that they separate when ejected. As shown in FIG. 17, this plug 102 is temporarily fixed to the plug chassis 101 in a protruding state by a presser piece 130.
In this state, the plug is stored in a plug storage section 132 that is partitioned by a partition plate 131 of the housing 2 and has an opening 132a on the side. Note that 133 is a presser knob when the plug 102 is moved in and out, and 134 is a positioning guide for the plug 102.

Although the IIC circuit of this ti block C is omitted, when charging is required, when the plug blade 125 of the locking plug 102 is protruded from the housing 1.2 and inserted into an outlet, the storage battery 99 is charged via the rectifier @105. , also plug 1
When the switch hand 02 is restored and the switch hand L/10 is operated, the display board 67 is activated and the voltage of the storage battery 99 is applied to the motor 15, so that the motor 15 is activated. The inner blade body 13 of the blade block 7 is rotated by the motor of the motor 15 and the rotation of the shaft 18, and the beard introduced from the outer blade hole can be shaved.

Finally, regarding the assembly of this streetcar razor, the upper housing 1 has a Sui Edge Hand/I/10. Driving Pro Tsuk B,
Counter block Dt-incorporated, and switch terminals 43 of the switch block and switch chassis 44 in the lower housing 2. The air block C is assembled, and the upper housing 1 and lower housing 2 are connected with screws to form a completed product.

As described above, in the counter device for an electric shaver of the present invention, the display means of the counter device is linked to the switch handle of the motor control switch, so that the opening/closing of the switch and the operation of the counter f'lli'? It can be operated reliably according to the number of times the switch lfl is closed, and there is no need to forget to operate it.
Since no separate operation unit is required, the structure is simplified, and the effect is that it is easy to know in advance when it is time to charge or change the battery with 5 degrees of reliability.

As an embodiment, firstly, if the switch hunt lVf ring shape is used, the operating section and the switch driving section can be separated in position, and restrictions on operability are reduced.

Second, since the protrusions project in the radial direction of the switch handle and fit into the four parts formed on the razor body to restrict the operating range of the switch, the switch handle can operate reliably with a simple configuration.

Thirdly, since the switch handle operation part is placed on the side wall of the main body and the display scale is provided on the front of the main body, the two are separated by approximately 90 degrees in opposite directions, so the counter display will not be obscured by fingers when operating the switch. It's convenient because it's easy to see and you can quickly see how much time you have left.

Fourth, because the click, lock, and switch handle are integrally formed, the number of parts connected to the switch handle, click, and lock button can be reduced, and the number of assembly steps can be reduced compared to conventional methods, which are made up of separate parts. By integrally forming the previously used parts, dimensions and quality after assembly can be more stable than with combined parts.

[Brief explanation of drawings]

Figure 1 shows one embodiment of this invention applied! A perspective view of the electric razor, FIG. 2 is an exploded perspective view thereof, FIG. 3 is an enlarged sectional view of FIG. 1, FIG. 4 is a plane view taken along the line IV-IV, and FIG. Fig. 6 is a partial plan view of the switch handle, Fig. 7 is a perspective view thereof, Fig. 8 is a perspective view of the lock button in a bent state, Fig. 9 is a sectional view thereof, and Fig. 10 is a counter device. FIG. 11 is a vertical sectional plan view of the assembled state, FIG. 12 and FIG. 13 are broken plan views showing the return operation, FIG. 14 is a sectional plan view showing the plug part,
Figure 5h -t oxv-xvts section [TI Figure, i
Figure 6h is a side view showing the rear end surface of the housing, and Figure 17 is a perspective view of the plug chassis. 1.2...Housing (razor body), 10...
Switch handle, 15...Motor, 27...Knob (operation part), 30...Lock button, 36...Rotation range regulating protrusion, 37...Switch protrusion, 40...Click protrusion, 43...Sui-Sochi terminal (movable part), 65
...Display slit, 67...Display board (display means),
72...Color display section (display scale) - Fig. 1 Fig. 5 Fig. 6 Fig. 9 Fig. 114 Fig. 14 Fig. 15 Fig. 16 Fig. 17

Claims (1)

[Scope of Claims] (1) An electric shaver equipped with a switch for controlling the blade drive motor on and off, and a display means that is linked to the switch hand of this switch and increases the usage count scale by turning on the switch handle. counter device. 121. The counter device for an electric shaver according to claim 1, wherein the switch handle is Jd-ring shaped and extends in the axial direction to drive the movable part of the switch. (3) The switch handle has a protrusion in the radial direction, and is arranged in a recess formed in the razor body to restrict the rotation range of the switch hand μ.
As stated in the section! , 9K counter device. (4) The operation part of the switch hand μ is powered on the side surface of the razor body, and the display scale of the display means is on the front side of the razor body. (5) The switch handle is integrally formed with a click protrusion and a lock button.
A counter device for an electric shaver according to item (2), item (3), or item (4).