JPS5955281A - Counter apparatus of electric razor - 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] This invention relates to a counter device for an electric shaver, which shows the degree of consumption of a dry cell battery or storage battery, easily predicts when to replace or charge the battery, and keeps the battery capacity always in a usable state. The purpose is to prevent the inner blade from becoming sluggish during shaving or stopping due to a dead battery, and to prevent the inner blade from becoming inoperable at the beginning of use.

An embodiment of the invention is shown in FIGS. 1 to 7. That is, first of all, the electric shaver is a rotary type and has a dry battery (not shown) and a motor (not shown)'f: inside the main body 1,
An inner cutter body (not shown) is connected to the motor shaft and rotated, while the outer cutter body 21r is placed over the inner cutter body and inserted into the cutter hole of the outer cutter body 2.
) Cut off the infested beard. The switch handle 3 is ring-shaped and is provided near the outer blade body 2, and a switch protrusion 4 (FIG. 3) provided on the handle 3 opens and closes a contact portion provided inside the main body-1.

In the counter device R, 5, a counter base 6 is attached to four flat parts (not shown) formed on the surface of the main body 10. The counter base 6 has an arc-shaped display window 7 formed approximately in the center of its surface, a return button hole 8 at the lower end, an on/off display recess 9 at the upper end, and a display provided on the switch handle 3. The protrusion 10 is positioned.

On the back side of the counter base 6, there is a return button 11° and a display board 1.
2. and the feed base [3] are installed.

First, the return button 11 has a flat plate shape with the button hole 8 on the surface.
A square hole 15 for zero return is formed in the center, a return protrusion 16 is formed in the center of one side edge of the square hole 15, and a return protrusion 16 is formed in the center of one side of the hole. Tapered protrusion 1
7 and t on the side opposite to the protrusion 17.
A J-receiving recess 18 is formed. Display board 12I/″i,
A partially toothed gear 19i is formed on its half periphery, an arcuate scale is provided on the surface with numerical or color markings corresponding to the display window 7, and an approximately no. Returning force A 21 Fully protruding. This display board 1
When the shaft hole 20 of No. 2 is fitted into the shaft 22 formed approximately in the center of the counter base 6, the display window 7 on the front side of the counter base 6 will open.
A scale will appear on the screen. Also, the operator 1 of the return button 11
4 through the button hole 8 and the return cam 21f into the square hole 15:
The return button 11t is arranged so as to be slidable in the width direction of the counter base 60 inside the counter base 6, and a compression coil spring 23 is disposed between the recess 18 and the inner surface of the counter base 6 facing the recess 18. (The return button 11 is supported on one side wall of the base 6 by compression. At this time, the return protrusion 16 is at a position away from the return cam 21 and faces the minimum diameter groove 21a of the return cup 21. In addition,
The relationship is such that the scale appearing on the display window 7 becomes zero at the position where the minimum diameter groove portion 21a of the return cam 21 faces the return protrusion 16.

The feed base 13 has a flat plate shape with a width equal to the width of the inner surface of the counter base 6, and has a T-shaped spring body 24 integrally formed at its upper end, arcuate protrusions 25 at both ends, and a lower end. A tapered recess 26 is formed on one side of the recess 26, and a pair of shafts 27 and 28 are formed in the width direction at the center of the surface. This feed base 13 is disposed on the upper part of the counter base 6 so as to be able to slide vertically, and the tapered recess 26 is fitted into the η-bar protrusion 17, and the arcuate protrusion 25 is attached to the upper end of the counter base 6. 6a
comes into contact with. Further, a feed gear 29 and a feed lever 30 are pivotally supported on the shaft 27. The feed gear 29 is coaxially formed with a mold wheel 31 and a gear 32'f having a smaller diameter than the mold wheel 31, and when the feed gear 29 is supported on the shaft 27, the gear 32 meshes with the gear 19 of the display board 12. The feed lever 30 is approximately C-shaped, with inward pawls 33a and 33b formed on both ends thereof, and a shaft hole 34'f formed approximately in the center, and a handle 35 connected to the shaft hole 34 and one pawl. The part between 33b and the claw 33a,
It protrudes in parallel to the direction in which the portions 33b are opposed to each other. When supported by the shaft hole 34k ill+ 28 of the feed lever 30, the claws 33a and 33b face both sides of the mold wheel 31, and the handle 35 fits into the hole 36 formed in the switch protrusion 4. .

In FIG. 3, the switch handle 3 is in the off state, and at this time, the pawl 33b comes into elastic contact with the valley groove of the mold wheel 31 and holds the entire mold wheel 31, and the other pawl 33a is attached to one side of the peak of the mold wheel 31. It is facing the slope of , the model car 31 for Jin is the feed lever 3
0, and the display plate 12 meshing with the gear 32 of the model wheel 31 is also held without wobbling. When the switch handle 3 is operated in this state, the switch protrusion 4 moves in the direction of arrow P, thereby rotating the feed lever 30 as shown in FIG. When the mold wheel 31f hits, the half-hit rotates in the direction of the arrow Q and comes into elastic contact with the valley, and the other pawl 33b leaves the mold wheel 31,
It is located on a slope slightly beyond the top of the mountain that was reached after 310 rotations of the model car. Then, when the switch handle 3ft is turned off, the state shifts to the state shown in FIG. 3 described above, at which time the pawl 33b engages the mold wheel 31, rotates the mold wheel 31 by half a pitch, and comes into elastic contact with the valley. In this way, the claw TL31 rotates by one pitch by turning on and off the switch hash 301 times, and the display plate 12 rotates by one scale through the gear 32°19. When the switch handle 30 is repeatedly turned on and off each time the electric shaver is used, the scale on the display board 12 will appear on the display window 7 according to the number of times the electric shaver is used.

Then, the battery is replaced when the number of times the battery is consumed, that is, it is time to replace (or charge) the battery. Since there are individual differences in the amount of power consumed in one shave, the scale for when to replace the battery is initially determined by using the battery until it runs out and using the scale value at that time. Also, this display board 12
Since the gear 19 is a partially toothed gear, the maximum scale is fixed and it will not rotate any further.

Figures 6 and 7 illustrate battery replacement or storage battery charging [I
This shows the zero return operation of the display board 12 at the time of L. In other words, when the return button 11 is moved in the direction of arrow R in Fig. 3, it becomes as shown in Fig. 6, and the return button IT is moved in the horizontal direction. As the compression coil spring 23 is compressed, the Taber protrusion 17 separates from the Taber recess 26 and pushes the base 13,
Since the circular arc protrusion 25 of the T-shaped spring body 24 is locked to the upper end of the counter base 6, the 'l'-shaped spring body 24 is deflected and the teeth jlt32 are separated from the gear 19 of the display plate 12, causing them to mesh. It comes off. When the operator 14t further moves, the return protrusion 16 comes into contact with the cam surface of the cam 21 and pushes it, thereby rotating the cam 21 and positioning it at the fourth part 21a that has the smallest diameter of the heart shape, as shown in FIG. It becomes like this.

As a result, the display plate 12 rotates in the opposite direction, and the scale returns to its original position, resulting in a zero return state. Hand from operator 14 t'Fli
When the return button 11 is slid and returned by the compression coil spring 23, and the tapered projection 17 is positioned in the tapered recess 26, the feed base 13 is lowered by the T-shaped spring rest 24, and the tapered projection 17 and the recess are moved. 26 is engaged, and gear 1
9.32 are engaged with each other and the count starts.

Because of this, this counter device allows you to see the number of uses or the degree of battery consumption from the scale displayed on the display window 7, and to predict when it is time to replace the battery. , it is possible to always ensure a usable state, and the inner blade does not become slow and stop during use. Furthermore, by using the button 11 to engage and disengage the gears 19 and 32, the engagement between the die wheel 31 and the feed lever 30 in the feed device can be maintained in a constant relationship. It is possible to prevent the display plate 12 from moving improperly due to mutual positional deviation that occurs when the two are engaged and disengaged, and the display plate 1211 can be reliably fed and the scale displayed accurately.

In addition, in this invention, the display board side may be moved relative to the feeding device side. The feeding device may also be manually operated depending on the razor use.

As described above, the electric shaver counter device of the present invention is provided with a means for engaging and disengaging the feeding means with the gear of the display plate, and a return means for returning the display plate to zero when released. Because you can use one bag, you can see the level of battery consumption and predict when it will be replaced or charged, and you can always use the 751 razor without running out of battery. Since the feeding device is not a separate structure, there is no mutual positional deviation, and the display board f:
It has the advantage of being able to accurately send information and to operate the display board with a total accuracy of 75λ on the scale.

[Brief explanation of the drawing]

Navy blue 1 Figure t Electricity to which one embodiment of this invention is applied - 1J1
Fig. 2 is a perspective view of the razor, Fig. 2 is a cross-sectional view of the counter device in the switch-off state, and Fig. 4 is its w-wta cross-sectional view. , FIG. 5 is a cross-sectional view of the switch-on state, and FIGS. 6 and 7 are cross-sectional views of the zero return operation state. 4...Switch protrusion, 6...Force') :' YuM
Stand N 1''... Return button (engagement/disengagement means, zero return means), 12... Display board, 13... Feeding base, 17...
・Tenoku protrusion (engaging/disengaging means), 19...gear, 21・
...Cam (returning means), 26...Taber recess Fig. 1 Fig. 3 Fig. 8 Fig. 4

Claims (1)

[Claims] a display plate having gears; a feeding device having a gear that meshes with the gear and rotating the display plate intermittently each time the electric shaver is used; and at least one of the display plate and the feeding device relative to the other. and a zero return means for returning the display plate to its original position when the display plate becomes free due to the engagement and disengagement means. Electric razor counter device.