JPH0446159B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a click structure for a slide switch used in an electric shaver or the like.

(Background Art) For multi-stage slide type switch handles or switch operations with a large sliding amount, a click member is disposed inside the razor body and fitted with the switch handle to provide clickability when operating the switch. It is slidable together with the switch handle. Recently, switches in particular have become multi-functional, and a sharpening blade is integrated into the switch handle.In order to improve the ease of use of the sharpening blade, when the sharpening blade protrudes, it has become farther away from the main blade. The amount that the switch handle slides is increasing.

However, between the above-mentioned click members, there is an eighth
As shown in the figure, a click boss 20' is formed in the housing of the electric shaver body, and constitutes a switch click of the electric shaver.If the switch is of a multi-stage sliding type, and the amount of sliding of the switch increases, Since the click member 16' slides together with the switch handle and is disposed within the electric shaver body, a large space is required within the electric shaver body. ′
The disadvantage is that the moving space 16'' of the razor becomes larger, and the razor body becomes larger accordingly.

Further, a click boss 20' is formed between the click members 16', and an elastic leg piece 1 of the click member 16' is formed.
6b' and 16c' become longer, and in this case, the elastic leg piece 1
Since 6b' and 16c' are not supported and fixed to the housing, the length ₁ of the elastic leg pieces 16b' and 16c' becomes longer, resulting in lower load movement and lower operating force when operating the switch, resulting in poor operating clickability. It had the disadvantage that it was a bad switch, that is, it had a bad feel when operating the switch, and was not easy to use.

The present invention has been proposed in view of the above points, and its object is to provide a click member having a pair of click elastic pieces between a housing and a switch handle, support and fix it to the housing,
The click boss formed inside the switch handle is movable together with the switch handle.
To provide a switch for an electric shaver, etc., which is compact by effectively using the space inside the housing, and which reduces the number of parts and improves assembly efficiency by integrally forming a click member and a display plate.

(Disclosure of the Invention) FIGS. 1 to 6 show an embodiment of the present invention applied to an electric shaver, which will be described below with reference to the drawings. First, as shown in FIGS. 1 and 2, the main body 1 has an outer shell formed by an A housing 2 and a B housing 3, which are divided into two parts, and has a main blade 4 on the upper part of the housing, and a motor inside. 5 and a battery 7 for driving the motor 5. This battery 7 is connected to a circuit block that controls the power input from the plug 6 to charge the battery 7. Furthermore, an eccentric cam 9 is press-fitted into the upper part of the motor shaft 8 of the motor 5, and a main blade driver 10 that converts rotational motion into reciprocating motion is attached.
As is well known, an inner cutter (not shown) having a plurality of blades is coupled to the main blade driver 10 . Further, an outer cutter frame 11 having an outer cutter 4b attached in an arch shape is attached to the upper part of the housing.
The rotation of the motor 5 is converted into reciprocating motion by the eccentric cam 9 and the main blade driver 10, and the inner blade is moved to cut the beard.

Therefore, the A housing 2 includes a scraping blade block 12 that can be rotated and protruded into the trimmer storage section 13.
As shown in FIGS. 2 and 3, holding hooks 13b, 13c, and 13d are formed on the back of the switch handle 13a, and these hooks are attached to the A housing. It is locked to 2.

Similarly, a switch plate holding hook 13e extends from the switch handle 13a, and the switch plate 17 is held in close contact with the inside of the A housing 2. As shown in FIGS. 2, 4, and 5, on one side of the front surface of the A housing 2, a pair of elastic leg pieces 16b, 16c for clicks each having a protrusion 16a having a curvature at the tip end thereof is provided.
A click member 16 is provided.
This click member 16 includes protrusions 16 _d-1 , 16 b- _{1 , 1 formed on the lower surface side at a substantially intermediate portion between the base portion 16 d and the click elastic pieces 16 b and} 16 c.
6 _c-1 , etc., which are connected to the opening 2 formed in the A housing 2, as shown in FIGS. 4 and 7.
It is supported and fixed to a, 2b, and 2c. Further, as shown in FIG. 3, the switch handle 13a
A click boss 20 is provided between the click elastic pieces 16b and 16c of the click member 16 supported by the A housing 2 on the inner side thereof so as to be in contact with the projection 16a. In addition, as shown in FIGS. 4 and 5, the base portion 16d of the click member 16
A switch display plate 18 extending further downward and having a pair of left and right elastic pieces 15 is integrally formed. This display plate 18 has a projection 18 of curvature.
a is formed, and as shown in FIGS. 1 and 3, a through hole 13f provided in the switch handle 13a
is engaged, indicating the switch OFF state.

In addition, in FIG. 2, 19 is the printed circuit board 1.
With a contact spring that can slide against the contact provided at 8',
It is fixed to the switch plate 17 by heat sealing or the like.

Further, in FIG. 3, 14 is a push-up plate that is provided inside the trimmer case 13 and pushes up the trimmer block 12 (see FIG. 1), and the upper part of this push-up plate 14 is not particularly shown. is pivotally connected to the inner wall of the trimmer base, and one end of this push-up lever 21 is hinged to the lower end of the push-up plate 14 through a thin connecting piece 24. Furthermore, the trimmer 12
A return spring 22 for returning the push-up lever 21 to the stored state is arranged near the push-up plate 14 and on one end side of the pivot support 21b of the push-up lever 21 with respect to the push-up plate 14. is urged downward, and the trimmer 12 is in the retracted state.

On the other hand, the other end of the push-up lever 21 has an action section 21.
A is provided protrudingly.

Then, when the switch handle 13a is slid upward from the switch OFF state, the switch contact spring 19 of the switch plate 17 slides on the printed circuit board 18', and the switch is turned ON, driving the motor 5 and the main blade 4. At this time, the push-up lever 21 is not activated and the trimmer block 12 cannot be pushed up. Next, when the switch handle 13a is further greatly slid upward and the trimmer case 13 is brought close to the main blade 4, the action part 21a of the push-up lever 21 comes into contact with the upper wall (not shown) provided on the A housing 2, and the trimmer case 13 is brought close to the main blade 4. Since case 13 tries to move further upward,
The push-up lever 21 rotates around the support shaft 21b to push the push-up plate 14 upward. Since the upper part of the trimmer push-up plate 14 is pushed up against the pivot engagement part of the trimmer base, the trimmer block 1 which is pivotally supported on the inner wall of the trimmer case 13 is pushed up.
2 rotates around a supported shaft, and the cutting edge portion opens and protrudes forward.

Next, when the switch handle 13a is largely slid downward, the push-up plate 14 is pushed down by the spring pressure of the return spring 22 arranged near the push-up plate 14, and the trimmer 12 is retracted as shown in FIG. state.

Therefore, regarding the operation, Fig. 3, Fig. 6,
As shown in FIG. 7 etc., the switch handle 13a
Slide the switch handle 1 upward.
The click boss 14 formed on the click boss 3a moves upward, and the first convex portion 2 formed on the click boss 20 moves upward.
0a rides over the curvature projections 16a of the click elastic pieces 16b and 16c, and the switch is turned on.
At this time, the protrusion 18a of the display plate 18 moves from the OFF display position of the through hole 13f of the switch handle 13a to the ON display position of the through hole 13f _-2.
Indicates ON state. Next, switch handle 1
3a upward, the second protrusion 20b and third protrusion 20c formed on the click boss 20 ride over the curvature protrusions 16a of the click elastic pieces 16b and 16c, and the scraping blade becomes ready for use. As soon as the switch handle 13a
The protrusion 18a of the display plate 18 that was engaged with the through hole 13 _f-1 of the switch handle 13a
It is engaged with the through hole 13 _f-2 and shows the cutting edge state.

As described above, the click member 16 is supported by the A housing 2, and the switch handle 13a
Since the click boss 20 provided at the top moves upward, only the moving range of the click boss 20 is required, so less space is required and the device can be made compact. In addition, the click member 16 and the display plate 18
Since they are integrally formed, the number of parts can be reduced and ease of assembly can be improved. Furthermore, since the click elastic piece is supported with the A housing 2 at the middle part,
Since the distance between this support portion and the protrusion 16a of the curvature at the tip can be arbitrarily selected, the operating force of the switch can be easily selected.

(Effects of the Invention) As described above, according to the present invention, the device is composed of a pair of elastic legs for a click having a hook at the tip, and a boss for a click movably provided between these elastic legs for a click. In the click structure of a slide switch such as an electric shaver, the click member and the display plate are integrally formed, so the number of parts can be reduced and assembly efficiency can be improved.

Furthermore, since the click elastic piece of the click member is supported by the housing at the middle part, the distance between this support part and the curvature projection at the tip can be arbitrarily selected, making it easy to select the switch operating force. This has the effect of creating a switch that is easy to use and easy to use.

[Brief explanation of the drawing]

Fig. 1 is an external perspective view of an embodiment of the present invention, Fig. 2 is a partially cutaway sectional view showing the internal mechanism of the above, Fig. 3 is a perspective view of the switch handle section as seen from the inside, and Fig. 4 is a perspective view of the switch handle. FIG. 5 is a perspective view of the click member; FIGS. 6A to 6C are explanatory diagrams of the operation of the click member; FIG. Figures A to C are explanatory views of the operation of a conventional click member. 2, 3...Housing, 13a...Switch handle, 16...Click member, 16a...Hook, 16b, 16c...Elastic leg piece for click, 1
8...Switch display plate, 20...Click boss.

Claims (1)

[Claims] 1. In a click structure for a slide switch such as an electric shaver, which is composed of a pair of elastic click legs having a hook at the tip and a click boss movably provided between these elastic click legs, the click A boss is provided on the slidable switch handle side, the elastic leg piece for clicking is provided on the housing, and the base and intermediate portions of the elastic leg piece for clicking are supported and fixed to the housing, and furthermore, a display plate for displaying the switch operation is provided. A click structure for a slide switch of an electric shaver, etc., characterized in that it is integrally formed with an elastic leg piece.