JPS58218988A - 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 run out of battery midway through shaving. This was designed to eliminate the inconvenience caused by this.

However, since this counter device is composed of many parts, the assembly of the electric shaver becomes complicated and expensive. Furthermore, since the operation of the counter device can only be checked after the electric shaver is completed, the entire electric shaver must be disassembled if it malfunctions. Furthermore, since the display board does not have a return-to-zero function, there is a drawback that it is difficult to provide a guideline that takes into account individual differences (differences in power consumption per use).

Therefore, an object of the present invention is to provide a counter device for an electric shaver that is easy to assemble, allows the operation of only the counter device to be checked, and allows easy estimation of conversion/charging timing according to individual differences. It is to be.

This invention is characterized in that all the counter components are assembled on the back side of a base that is attached to an electric shaver, and the display section and return knob are exposed on the surface of the base. Therefore, it is possible to assemble the original electric shaver by simply configuring the base mounting storage part on the razor body, and the counter device can be assembled separately on the base, and the counter operation can be transferred to the razor body. Operation can be checked before installation. This makes assembly easier and cheaper.

Have you applied an embodiment of this invention? [The razor is shown in Figures 1 to 17. That is, as shown in Fig. 2, this electric oven is roughly divided into 7 Ujifugu Glock A1 drive block B1 electric block C1 counter block D.
・Connect the screw 5 with the housing 2 at the pair of bosses 3 and 4.
(Fig. 3). Reference numeral 6 in FIG. 5 is a fitting portion of the front and rear portions 1a. As shown in FIG. 2, the drive block B includes a blade block 7, a blade mount 8, a motor block 9, and a switch handle 10.
It consists of an outer cutter 12 attached to an outer cutter frame 11, and an inner cutter body 13 (FIG. 3) located within the outer cutter frame 11 and the outer cutter 12 and elastically contacted with the outer cutter 12 by rotation. Although not shown, a cap for protecting the outer cutter 12 is engaged with a circumferential groove 14 of the outer cutter frame 11. The motor p-1 screw 9 has a cylindrical shape in which a motor 15 has a flat part 16 formed on one opposite side, a pair of motor terminals 17 (Fig. 3) protrudes from the rear end, and a motor shaft 18 protrudes from the front end. A joint 19 is attached to the joint 19.
is press-fitted into and engaged with the inner cutter body 13 (Fig. 3). The blade mount 8 has a stubble trap 20 that serves as a partition plate formed in the middle of the cylinder, and a female thread 21 for attaching the outer blade frame 11 to the inner periphery of the upper end. In addition, the lower end of the blade mount 8 has an inward hook 22 (Fig. 5).
By inserting the motor 15 from its F end, the rear edge of the motor 15 is locked with a hook 22. At this time, the motor 15, the motor shaft 18, and the joint 19'.

protrudes υ above the central hole 23 of the beard waste storage portion 20. This blade mounting base 8 is a hole 2 in the head part 1a of the upper housing 1.
4 is press-fitted and installed. The switch handle 10 is ring-shaped and is rotatably fitted between the upper housing 1 and the outer collar 25 of the blade mount 8, as shown in FIGS. 3 and 5. 26 is its guide rig. This switch handle lO has a pair of knob protrusions 27 on the outer surface, and a downward opening notch 28 between the knob protrusions 270 as shown in FIG.
An elastic arm 29 continuously extends inside the handle 10 above the notch 28, a lock button 30 is attached to the tip of the elastic arm 29, and a pair of guide arms 31 are installed on both sides of the lock button 30. At the same time, a lock protrusion 32 protrudes radially inward inside the lock button 30. This lock button 3
0, 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. When the handle 10 is attached to the blade mount 8, the protrusions 33 at both ends of the guide arm 31 come into slidable and 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 31, the lock button 30 projects beyond the notch 28 by a predetermined amount, and the lock protrusion 32 is inserted into one of a pair of locking recesses 34 and 35 formed at the edge of the hole 24 in the upper housing 1. Engage on one side.

Therefore, multiple rotations of the switch handle 10 are restricted by the lock projection 32 being locked in the locking recess 34 or 35. However, when the lock button 30 is pushed in with a finger, the guide arm 31
flexes, and the lock protrusion 32 separates from the locking recess 34 (35), allowing the handle 10 to rotate, and when the lock protrusion 32 is located in the other locking recess 35 or 34, when you release your finger, it locks in that position. The button 30 returns to its original state, and the locking protrusion 32 engages with the recess 35 or 34, returning to the locked state. I
- By moving the handle 10 between these two positions, the switch is turned on or off. of·
The handle 10 further has a rotation range regulating protrusion 36 which protrudes radially outward from the knob protrusion 10 at a position approximately 90 degrees apart from the knob protrusion 27, and has a hanging force at the same position.

There is a switch protrusion 37 that hangs in the direction, and this switch protrusion 37 enters the inside of the upper I housing 1 through a square hole 38 formed near the hole 24 of the upper I housing 1.

Further, the rotation range regulating protrusion 36 is located within a cutout recess 39 of a counter block D, which will be described later, and the rotation range of the handle 10 is restricted to a range in which the protrusion 36 can move within the recess 39, so that the locking operation is ensured. I am trying to make it happen. The switch handle 10 also has a click protrusion 40 at a position opposite to the regulation protrusion 36 (FIG. 2). This click protrusion 40 is formed in the center part and is opposed to the protrusion 42 formed on the outer cutter mount 8 (Fig. 3). 40 is the protrusion 42
This creates a click action.

As a switch block, the front switch handle 1
0, as shown in FIG. 2, it includes a switch terminal 43 and a switch chassis 44. First, as shown in FIG. 3, the switch terminal 43 has a groove 45 that is slidably fitted and held in the upper part of the switch chassis 44 and an engaging protrusion 46, and also has a bridging contact with a pair of switch contacts 47 of the switch chassis 44. It has a conductive plate 48 that separates the switch, and a recess 49 that engages with the lower end of the switch protrusion 37 is formed on the upper surface. Both ends of the switch chassis 44 are press-fitted into support recesses 50 formed in the lower housing 2 (FIG. 4).
, a pair of contact pieces 51 and 52 protrude from the main body 44a of the chassis 44 and contact the motor terminal 17. 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 of the pair of conductive plates 54, and a beautiful connecting piece 56 that is continuous with the conductive plate 54 is protruded from the relay terminal 55. It is. 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. Conductive plate 5
4. The connecting piece 56 and the battery connecting plate 57 connect thin metal plates such as steel to butter 1. When punched into a T-shape, the chassis body 44
A and intermediate terminal 55 are simultaneously molded, each pattern portion is cut at a predetermined position, and bent into the state shown in the figure.
The structure is well-formed, making mass production possible. thus,
When the switch protrusion 37 moves with the above-described on/off operation of the switch handle 10, the tip of the protrusion 37 engages with the recess 49 of the switch terminal 43, so the switch terminal 43 moves and the switch contact 47 connects and separates. The opening and closing operations control the power supply to the motor 15 on and off.

The counter block D has a flat base 5 as shown in FIG.
A counter component is assembled into the upper housing l, and is housed in the accommodation recess 59 of the base 58 formed on the upper surface of the upper housing l.
It is attached by locking hooks 60 formed on both sides of the recess 59 into locking holes 61 formed in the recess 59. As described above, the surface of the base 58 has a recess 39 at the center of the front edge, so that when it is attached to the upper housing 1, the switch handle 1
0 within the rotation range regulating protrusion 39. On the back side of the base 58, there are three shafts 62-64 degrees as shown in FIG.
A semicircular arc-shaped display slit 65 between the display slits 64 and a knob insertion hole 66 is formed on the lower side of the base 58. and axis 6
2, a display plate 67 is rotatably supported on shafts 63 and 64.
is formed with a split stopper 8 to prevent it from coming off at the tip, and the feed shaft 6 is attached to the shaft 63.
9. A feed lever 70 is pivotally supported on each of the shafts 64 so as 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 circumferential surface in a range where the display plate 67 can rotate up to a predetermined maximum value on the scale, and a color is displayed corresponding to the display slit 65. 72 (FIG. 1), a cam portion 73 is formed at the center on the opposite side of the color display portion 72, and a cam surface 74 on the outer periphery of this cam portion.
The diameter is made to gradually become shorter in the direction opposite to the return rotation direction of the display plate 67 (liTI forward rotation). In addition, the display board 67
A stopper protrusion 75 is formed at a predetermined distance from the center on the cam side of the display plate 67, and a rotation regulating arcuate groove 76 is formed at a position symmetrical to the color display section 72 of the display plate 67 (Figs. 3 and 11). , the protrusion 7 formed on the base 58 when supported on the shaft 62
7 is made to engage with the circular arc N36. A feed shaft 69 supported by the shaft 63 is connected to the display plate 67 .

Consisting of a gear 78 meshing with a partially toothed gear 71 and a windmill 79,
When the feeder wheel 69 rotates, the display plate 67 rotates. Delivery 9v
The bar 70 is a lever portion 8 extending radially from the bearing portion 80.
1, an L-shaped spring part 82 integrally formed at the tip of the lever part 81, and an L-shaped elastic pawl 83 extending 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 under the action of the spring, the tip of the lever part 81 is formed on the base 58. At this time, the tip of the elastic pawl 83 faces the mold wheel 79 of the feed wheel 69. The base 58 is still on top.
When attached to the housing 1, the tip of the lever part 81 is positioned so as to intersect the switch protrusion 370 in the ON operation direction as shown in FIG.
When the handle 10 is turned on, the lever part 81 is pushed by the switch protrusion 37 and rotates toward the imaginary line in FIG.
is elastically deformed, and the elastic pawl 83 engages with the groove of the mold wheel 79 to feed the mold wheel 79 by one thread, thereby rotating the display plate 67 by a predetermined angle.

The operator 86 serving as the return means is a substantially rectangular flat plate as shown in FIG. The recess 93 of the button 92 with a knob 91 is fitted into the button engaging protrusion 90 formed on the surface of the operator 86 by press fitting into the groove of the part 89 . The button 92 is passed through the hole 66 and is freely engaged with the guide recess 93 formed in the base 58, whereby the operator 86
is slidably supported in the longitudinal direction of the base 58 under the spring action of a spring portion 87, and a positioning protrusion 94 protruding from the side surface of the operator 86 is engaged with a positioning rig 95 of the base 58. It becomes stable.

In a stable state, the operator 86 has a folded portion 96a at its front end so that a pawl 96, which serves as an elastic locking means, elastically locks onto the mold wheel 79 due to its elastic action. This holds the feed wheel 69 and prevents it from reversing. Also, the return arm 97°7, cuff 4, protrudes from the shoulder at the front end of the operator 86.
(@□2.), □゛Also, as will become clear in the operation described later, a projection 98 for initial return drive and display plate rotation stop is formed on the side of the operator 86, and a projection 98 is formed so as to face the projection 75. However, the operation of the original counter device is as follows: When the switch switch 10 is rotated from OFF to ON, the 11th
As shown in the figure, the switch protrusion 37 moves from the solid line to the imaginary line, and the lever part 81 facing the side of the switch protrusion 37 is pushed by the switch protrusion 37, bending the spring part 82 as shown in the imaginary line, and rotating. Accordingly, the pawl 83 rotates and engages with the groove of the mold wheel 79, thereby rotating the mold wheel 79 by one heap. This rotation of the mold wheel 79 causes the gears 78.degree. 71 to rotate and the display plate 67 to rotate. As a result, the display screen on the surface of the base 58! J, 7
) A color display section 72 appears at one end of the display slit 65.
When the switch knob 10, which moves by one scale corresponding to one use, is turned off, the lever part 81 is released from being pressed by the switch protrusion 37, and the lever part 81 is released by the action of the spring part 82. At the same time as part 81 returns, claw 8
3 leaves the model car 79. At this time, the claw 96 of the operator 86
Since it is elastically secured to the mold wheel 79, there is no reversal and no excessive rotation.

Similarly, when the switch handle 10 is turned on from off again, the display plate 67 further rotates by a predetermined angle, and thus the display plate 67 continues to rotate according to the number of times the electric shaver is used, and the display portion appearing in the slit 65 The number of times of use is indicated by the number of arcuate graduations from one end of the 72. Therefore, the user needs to charge the battery every time he uses the electric miso to know when it has been used for the last time. Furthermore, generally speaking, once the display plate 67 of the gear 71, which is set according to the battery capacity, has finished rotating, even if the swift/bundle 10 is turned on and off, the feed wheel 69 only rotates, and the display plate 6
7 will no longer rotate. Furthermore, further rotation of the display plate 67 is caused by the stopper protrusion 75 of the display plate 67 and the protrusion 98 of the operator 86 locking together.
6 is engaged with the protrusion 77 of the operator 86.

Therefore, when returning the display board 67, the return knob 91 appearing on the outer surface of the base 58 is pushed down in the direction of the arrow in Figure 12. This movement of the knob 91 causes the operator 86 to move in the circumferential direction against the spring action of the spring portion 87. Due to this movement, the pawl 96 of the operation element 86 separates from the mold wheel 79 of the feed wheel 69, and the feed wheel 69 becomes free and one protrusion 98
hits the stopper protrusion 75, and the protrusion 98 stops the stopper protrusion 7.
By pressing 5, the display plate 67 is rotated in the reverse direction as indicated by arrow M in the initial stage of return. Further, as the operator 86 continues to move, the side surface of the return arm 97 is moved to the cam portion 7.
When the display plate 67 contacts the cam surface 74 of No. 3 and pushes the cam surface 74 with the arm 97, the display plate 67 continues to rotate in reverse as shown in FIG. 13 and returns to its original position, returning to zero. During this time, the gear 7 on the display board 67
1- meshes with gear 78 of 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, and the operator 86 is moved to the projection 95.
The pawl 96 elastically engages with the mold wheel 79 to hold the mold wheel 79. In this way, when the battery is in a so-called dead state, the battery is charged and the display board is reset to zero. You can know the maximum number of times the battery can be used until it reaches the end of its life, and you can individually decide how many times the battery can be used until the end of its life. You can avoid running out of battery.

As shown in FIG. 2, the electric block C consists of a printed circuit board Zoo on which a storage battery 99° charging circuit component is mounted, a plug chassis 101, and a plug 102.

The printed circuit board 100 includes transformers 1o3. Resistor 1o4° Rectifier 105. Charging circuit parts such as capacitor 106
In addition to being mounted, a display light emitting diode 107 and the like are mounted, and the light emitting diode 107 is inserted into the window 109 of the counter base 58 through the through hole 108 formed in the upper housing 1.
I'm trying to make it glow more. This printed circuit board 10
As shown in FIG. and forming side connection holes 111 to 113 at one end,
The tip and end of the connecting piece 56 of the switch chassis 44 is inserted into the connecting hole 113 "□" on the front end side and is connected by soldering K without staining. The plug chassis 101 is the first
As shown in FIGS. 4 to 17, a rear end 117 of the main body 116 slidably supports the plug 102 and has a plug contact 114 and a contact 115 for opening the motor drive circuit during charging.
A pair of conductive plates 118 are extended horizontally, a relay terminal 119 is provided at the tip thereof, and a beautiful connecting piece 120 is protruded from the relay terminal 119 in a direction perpendicular to the conductive plate 11B within the same plane as the conductive plate 118. Fold back and connect relay terminal 119 to main body 11
6, connect these connecting pieces 120 to +m printed circuit boards 100.
Connect to the connection hole 111 of. In addition, a pair of L-shaped conductive plates 121 are protruded from the upper surface at right angles to the sliding direction of the plug of the main body 116, a relay terminal 122 is formed at the tip of the plate as described above, and a beautiful connecting piece 123 is formed at the tip of the L-shaped conductive plate 121. is connected to the connection hole 112 of the printed circuit board 100.

These beautiful connecting pieces 120 and 123, including the beautiful connecting piece 56 of the switch chassis 44, are 1. Printed circuit board 1
00 connection holes 111 to 113 for temporary fixing and also to prevent the copper foil of the board 100 from peeling off when pushed in. One hook portion 123 of the conductive plate 121 is wide and forms a connection hole 124, which connects the storage battery 99.
One pole of the storage battery 99 is connected to the connection hole 124, and the other pole of the storage battery 99 is connected to the connection hole 57H of the battery connection plate 57 of the switch chassis 44.
, 2 printed circuit board 1o.

It is stored next to 9 (Fig. 4). 99a is a support lip provided on the lower housing 2.

The plug chassis 101 is made by punching out a single conductive plate into a predetermined wiring pattern, and then attaching a main body 116 and a relay terminal 119.
, 122 are made by cutting out a predetermined position of the pattern, and when used, the conductive plates 118 and 121 are bent from the imaginary line to the solid line in FIG. 17,
We are currently working on mass production. The plug 102 integrates a pair of plug blades 125 with a body 126 that is molded at the same time, and a knob 127 that protrudes from the body is exposed by passing it through a sleeve 128 at the rear end of the housing 1.2 (Fig. 16), so that the knob can be operated. A plug blade 125 is made to protrude and retract from the housing 1.2.

The plug blade 125 is slidably always in contact with the plug contact 114 of the plug chassis 101 on its side edge, and has a shorting plate 129 on the side of the plug body 126 facing the chassis. Open contact 11 when stored
It bridges 5 and separates when it is projected. This plug 102 is attached to the plug chassis 1 as shown in the imaginary line in FIG.
01, and is temporarily fixed by a presser piece 130 in a protruding state, and in this state is housed in a plug accommodating portion 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.

The electrical circuit of the t-block C is omitted here, but in short, when charging, the blade 125 of the plug 102 protrudes from the housing 1.2 and is inserted into an outlet, and the storage battery 99 is charged via the rectifier 105. and also plug 10
2 and operates the switch handle 10, the display plate 67 is activated and the voltage of the storage battery 99 is changed to the motor 1.
5 and causes the motor 15 to operate.

The rotation of the motor shaft 18 of the motor 15 rotates the inner blade body 13 of the blade block 7, making it possible to shave the beard introduced from the outer blade hole.

``Finally, regarding the assembly of this electric shaver, attach the upper housing 1, the switch handle 10, the drive block B,
The counter block D is assembled into the lower housing 2, and the switch terminals 43 of the switch block and the switch chassis 44. [The air block C is assembled, and the upper housing 1 and lower housing 2 are screwed together to form a completed product.

As described above, the counter device for an electric rice cooker of the present invention has counter components integrally disposed on a counter base equipped with a return means for returning the counter to zero, and the counter components are arranged on one side of the base. Because the counter and display board are exposed, the counter device can be made into a block and can be easily assembled into the razor body, and it is possible to check whether the counter is working properly in the block state before assembly. With the zero return function, the number of uses can be determined based on the battery capacity according to each user's usage, such as the thickness of the beard and how it is used.
1 can be set by oneself.

In this embodiment, a locking protrusion is provided on the base and a locking recess is formed in the razor body, so that the counter device can be attached to the razor body with a single touch.

[Brief explanation of the drawing]

Figure 1 shows one embodiment of this invention applied! A perspective view of Kikamiso υ, FIG. 2 is an exploded perspective view, FIG. 3 is an enlarged sectional view of FIG. 1, FIG. 4 is a plane view taken along 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. FIG. 11 is an exploded perspective view of the device; FIG. 11 is a cutaway plan view of its assembled state; FIGS. 12 and 13 are cutaway plan views showing the return operation; FIG. 14 is a sectional plan view showing the plug portion;
Figure 5 is a sectional view taken along the line xv-xv, and Figure 16 is a bottom side view showing the rear end surface of the housing. FIG. 17 is a perspective view of the plug chassis. 1.2...Housing (razor body), 58...
・Counter base, 62-64...axis, 65...display slit, 66...hole, 67...display board, 69...
- Feed wheel, 70... Feed lever, 71... Missing tooth gear, 72... Display section, 73... Cam section, 74... Cam surface, 75... Stopper protrusion, 78...・Gear, 79
...Model car, 8o...bearing part, 81...lever part,
82... Spring portion, 83... Elastic claw, 86... Operator (returning means), 87... Operator return spring portion, 88...
...Mounting key part, 89...Holding part, 9°...Protrusion, 91...Knob, 92...Return button, 94...Protrusion, 95...Positioning protrusion, 96...・Latching claw (locking means), 97...Return arm, 98...Protrusion (auxiliary return means) Fig. 5 J3 Fig. 6 Fig. 9

Claims (2)

[Claims] (1) A razor body, a counter base that is attached to the razor body and forms part of the surface of the razor body, and a counter base that is attached to the back side of this counter base and forms a part of it. A counter device for an electric shaver, comprising a display body for displaying a count scale, and a counter component in which a return knob for returning the display body to a zero position is exposed on the surface side of a counter base. (2) The electric shaver according to claim (1), wherein the counter base has a locking projection for attachment, and the shaver body has a locking hole into which the locking projection locks. counter device.