JPH0329688A - Electric razor - Google Patents

Abstract

PURPOSE:To prevent the malfunction of a power select switch by providing a switch handle for slide type on-off switch in parallel to a switch handle for power selection, and making the operational directions of both switch handles different from each other. CONSTITUTION:A switch handle 30 for a slide type on/off switch and a switch handle 40 for a power select switch are provided in parallel to each other, and the operational direction of the handle 40 is made to intersect the slide direction of the handle 30. Namely, when the handle 30 is operated, the operation of the power select switch is not triggered even with a finger placed on the handle 40 during the operation of the handle 30, because the operational directions of both handles 30 and 40 are different from each other, thereby preventing the unexpected selection of a power supply.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to an electric shaver, and particularly to an electric shaver equipped with an on/off switch and a power changeover switch.

[Conventional technology]

In order to avoid being unusable due to a dead battery, it is equipped with a main battery and a spare battery, so that when the main battery runs out,
There are electric razors that allow you to shave using a spare battery. If this device automatically switches between the main battery and the spare battery, the user may not be able to recognize that the main battery has already run out and is running on the spare battery, and the user may not be able to use the spare battery. Because this type of device is equipped with a power changeover switch, the user can change the power.

[Problem M that the invention attempts to solve]

However, in many conventional models, the operating direction of the switch handle of the power selector switch is the same as the operating direction of the switch handle for the on/off switch, so it is possible to accidentally switch the power selector switch during the on/off operation and waste the spare battery. There were times when I ended up using up the battery so quickly that there was no point in having a spare battery for emergencies when the main battery ran out. In addition, some devices are designed so that the power selector switch can only be switched when the on/off switch is turned on to prevent accidental switching of the power selector switch, but in this case However, due to the operating direction, there were cases where the battery could be accidentally switched to the spare battery side, and the structure was complicated. The present invention has been made in view of these points, and its purpose is to prevent the power selector switch from being operated erroneously when operating the on/off switch, and to prevent erroneous operation of the power selector switch. There is no electric razor to offer.

[Means to solve the problem]

Therefore, the present invention provides a switch handle for a sliding on-off switch and a switch handle for a power changeover switch, and the operating direction of the switch handle for the power changeover switch is changed from the sliding direction of the switch handle for the on-off switch. The feature is that the direction intersects with the [Function] According to the present invention, even if a finger touches the switch handle of the power selector switch when operating the switch handle of the on/off switch, since the operating directions of both switch handles are different, it is difficult to operate the power selector switch. It's something you can never do. [Embodiment] The present invention will be described in detail below based on the illustrated embodiment. This electric shaver has an outer cutter 24 disposed on the surface side of one end of the housing 1 via an outer cutter frame 14. A motor 21 and an inner cutter block 25 connected to the output shaft of the motor 21 via a joint 23 are disposed inside the housing 1 on the one end side. In the figure, 13 is a motor mounting base, and 15 is a cap for protecting the outer blade. As is clear from FIG. 4, the housing 1 is composed of a housing 11 on the front side, a housing 12 on the back side, and a front panel 10 attached to the surface of the housing 11. A battery 21, a spare battery 22, and a circuit board 6 to which a base 5 is attached are housed, as well as a plug unit 67. The circuit board 6 is mounted with a charging control circuit for a main battery 21 and a spare battery 22, which are storage batteries.In addition to the base 5, the circuit board 6 also includes a power supply section 6 to which a plug unit 67 is connected.
6, a light emitting element 68 for displaying when charging is in progress, a connecting fitting 27 connected to the positive terminal of the motor 20, etc., and are positioned and fixed on the inner surface of the housing 12. In the figure, 26 is a connecting fitting whose one end contacts the negative terminal of the motor 20. As shown in FIGS. 9 and 10, the base 5 is provided with a positioning protrusion 53 and a positioning rib 54 on the back side, which are inserted into a positioning hole provided in the circuit board 6, and two pairs of guide ribs 51, 51, 52, and 52 on the front side, and the main terminal 43, the spare terminal 44, and the contact part 34a of the contact spring 34 are arranged parallel to each other on the front side. is contact spring 34
A contact plate 33 facing the is attached. This base 5 includes a main terminal 43, a spare terminal 44, and each terminal portion 43a of the contact plate 33. 44a and 33a are fixed by being soldered to the circuit board 6, and as shown in FIG. It is positioned by engaging with the positioning ribs 12a, 12a. The terminal portion 33a of the contact plate 33 contacts one end of the contact fitting 26, as is clear from FIG. The positioning rib 54 and the guide rib 52 also serve to prevent deformation of the terminal portion 33a, the main terminal 43, etc. On the other hand, two switch handles 30 and 40 are slidably attached to the surface of the housing 1. A switch handle 30 that is slidable in the longitudinal direction of the housing 1 is disposed on the front side of the front panel 10 with a lock handle 31 attached to the back side thereof.
As shown in FIG. 5(a), the hooks 30a protruding from both side edges are slidably engaged with the front panel 10, and the push button part is made to protrude toward the surface side of the switch handle 30, and the sixth As shown in Figure (a), the lock handle 31 is integrally equipped with a click spring 3lb that gives a click feeling when the switch handle 30 is slid.
is connected to the switch plate 32 arranged on the inner surface of the housing l1. As described above, the lock handle 31 is sandwiched between the switch handle 30 and the surface of the housing 11, and the fitting and locking portions of the switch handle 30, lock handle 31, and switch plate 32 are approximately the same. Since they are sandwich-fitted on the same plane through the housing 1l, there is no inclination or wobbling of the lock handle 31 or the switch plate 32. The other switch handle 40 is arranged to be slidable in the width direction of the housing 1, which is a direction perpendicular to the operating direction of the switch handle 30, and a slider 41 arranged on the inner surface of the housing 11 is fitted and connected. It will be done. A contact spring 42 is attached to the slider 41, which is attached to the housing 1l by hooks llb, llb formed on the inner surface of the housing 11, and whose sliding direction is regulated by engagement with ribs lla, etc. Figure 6(c)
The 4lb inside is a click spring that engages with the inner surface of the housing 11 to provide a click feeling when the switch handle 40 is slid, and is provided integrally with the slider 41. The slider 41 has an engagement part with the switch handle 40, a click spring 4lb, and a mounting part of the contact spring 42 arranged in a plane. Since the interlocking by the plate 32b is also developed in a plane, it contributes to making the electric shaver thinner. The assembly of this electric shaver consists of a block shown in FIG. 6 in which a switch handle 30, 40, a switch plate 32, a slider 41, etc. are attached to a front panel 10 and a housing 1l, and a circuit board 6, etc. are attached to a housing 12. This is done by combining the blocks shown in FIG. 7 and then incorporating the motor mount 13 to which the motor 21 is attached. The outer cutter frame 14 is attached to the housing 1 via a motor mount 13. Now, when one ends of the housings 11 and 12 are engaged with each other and the other ends are connected with the screw l9, the switch grate 32 assembled on the housing 11 side is as shown in FIG.
), the tip of the bottle 32a protruding toward the rear side is positioned in the guide groove 50 formed in the base 5, and is engaged with the guide ribs 51, 51 of the base 5, so that the housing 11 side switch plate 32 and base 5
The switch plate 32 is positioned relative to the switch plate 32, and the slide of the switch plate 32 is guided. Furthermore, as shown in FIGS. 1 and 5 (bHc), due to the contact between the rib lla on the inner surface of the housing 11 and the guide rib 52 of the base 5,
The slider 41 is positioned between the base 5 and the slider 41 guided by the ribs lla, and the slider 41 brings the contact spring 43 into contact with the surface of the base 5, so that the main terminal 43 and the contact spring 34 are normally connected. The switch 4 in FIG. 11 is connected to the main battery 210 by short-circuiting the contact part 34a.
Connect to 1. In this electric shaver, if the switch handle 30 is slid while pushing the push button part of the lock handle 31, the pin 32a of the switch plate 32 that slides together with the switch handle 30 presses the contact spring 34 and pushes it onto the contact plate 33. In order to make contact with
The switch 3 shown in FIG. 11 is turned on, and the main battery 2
1 supplies power to the motor 20. At this time, the operating direction of the switch handle 30 and the operating direction of the switch handle 40 are perpendicular to each other, and as shown by γ in FIG. , the switch handle 40 will not be switched when the switch handle 30 is operated. Furthermore, since the width of the switch handle 30 and the width including the sliding range of the switch handle 40 are approximately the same, the purpose and use of both are clear both externally and operationally. This also helps prevent erroneous operations. When the remaining capacity of the main battery 2l becomes low, the switch 4 can be switched to the spare battery 22 side by operating the switch handle 40. The contact spring 42 attached to the slider 4l that slides in the width direction of the housing 1 together with the switch handle 40 is connected to the contact portion 34 of the contact spring 34.
A and the spare terminal 44 are short-circuited, and the motor 20 and the spare battery 21 are connected. However, in order to prevent the spare battery 22 from being consumed before the remaining capacity of the main battery 21 becomes low, the switch handle 40 can only be operated when the switch handle 30 is moved to the on side. It is made possible to do so. That is, the switch plate 32 interlocked with the switch handle 30 is shown in FIG. 6(e) and FIG. 8(b).
), the baffle plate 32 comes into contact with the slider 41.
b, and when the switch handle 30 is in the off position, the slider 41 comes into contact with the baffle plate 32b, so the switch handle 40 cannot be moved, and the switch handle 30 and the switch plate 32 are in the on position. When moved, the baffle plate 32b separates from the contact position with the slider 41, and as shown in FIG. 8(a), the switch handle 40 can be operated. When the slider 41 is in the position where the motor 20 is connected, the baffle plate 32 is attached to the slider 41.
If the switch hand 30 cannot be returned to the OFF position due to contact with the main battery 21 and the switch handle 40 is not returned to the position where the main battery 21 is connected to the motor 20, the switch 3 must be turned OFF. It is now impossible to do so. As shown in FIG. 13, an inclined edge 3 is attached to the base of the baffle plate 32b.
2c is provided, and when the switch handle 30 is returned from the on position to the off position, the inclined edge 32C presses the slider 41, returning the slider 41 and the switch handle 40 to the position where the main battery 21 is connected to the motor 20. You can also leave it so that As shown in FIG. 12, both batteries 21 and 22 are charged by protruding the plug unit 67 to the side and connecting it to an outlet. SW in FIGS. 7 and 11 is a switch that disconnects the motor 20 when the plug unit 1/67 is extended. Other embodiments are shown in Figure 14 and below. The switch handle 40 is of a rotary lever type, and when the switch handle 40 is rotated, a bifurcated lever part 40d provided on the switch handle 40 moves the bin 4
The slider 4l that engages the slider 1d is made to slide. In this case as well, the operating directions of the switch handle 30 and the switch handle 40 are directions that intersect with each other, and the switch handle 30 and the switch handle 40 are
The switch handle 40 is lower than the 0 surface by γ.
, the switch handle 40 will not be moved when the switch handle 30 is moved to the on position.

【Effect of the invention】

As described above, in the present invention, when operating the switch handle of the on-off switch, even if your finger touches the switch handle of the power selector switch, since the operating directions of both switch handles are different, the power selector switch cannot be operated. This prevents the power supply from being switched inadvertently.

[Brief explanation of drawings]

Fig. 1 is a longitudinal sectional view of one embodiment of the present invention, Fig. 2 is a front view of the same, Fig. 3 is a perspective view of the same, Fig. 4 is an exploded perspective view of the same, and Figs. )(c) is the same horizontal ll7rW
Figure i, Figures 6(a), (b), and (c) are the front view, longitudinal sectional view, and partial rear view of the front side housing sink block, and Figure 7(a).
) (b) is a front view and longitudinal cross-sectional view of the rear housing block, Figures 8 (a) and (b) are partial front views of the same as above, and Figure 9 (
a) (b) (c) (d) are the rear view, vertical cross-sectional view, front view, and right side view of the same base, and Figure 10 (aHb) is an enlarged vertical cross-sectional view and front view of the same base. , FIG. 11 is the same circuit diagram as above,
12(a), 12(b), and 12(c) are a front view, a bottom view, and a side view of the same as above, 13(a) and 13(b) are partial front views of another example, and FIG. 14 is another example. 15(a) and 15(b) are side views of the same as above, and FIG. 16 is a partial front view of the same as above, 11 and 12 are housings, and 30 and 40 are switch handles.

Claims (1)

[Claims] (1) A switch handle for a sliding on-off switch and a switch handle for a power selector switch are installed side by side, and the operating direction of the switch handle for the power selector switch crosses the sliding direction of the switch handle for the on/off switch. An electric razor characterized by a direction.