JPH05151Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a click structure that gives a sense of moderation to, for example, the ON/OFF operation of the slide knob of an electric shaver.

[Conventional technology]

FIG. 7 shows a conventional example. In the figure, reference numeral 1 indicates a front case member of an electric shaver as a fixing member, and a slide knob 2 is provided on the front surface of the electric shaver so as to be slidable, for example, in the vertical direction. A click plate 3 is housed within the front case member 1, and this plate 3 is integrated so as to be moved together with the slide knob 2 via a heat caulking portion 2a or the like. In the figure, 1a is a long hole, and 1b is a guide rib. A switch contact piece 4 is attached to a part of the click board 3, and this contact piece 4 is brought into contact with and separated from a switch pattern on a printed circuit board (not shown), thereby turning the switch on and off.
OFF is becoming more and more common.

Elastically deformable click legs 5 are integrally protruded from both left and right edges of the click plate 3. These pair of click legs 5 are arranged in a V-shape,
The crossing end portion 5a formed at the tip thereof is adapted to be engaged with a leg engaging convex portion 6 integrally formed on the inner surface of both sides of the front case member 1. Note that 7 and 8 in the figure are other leg engaging convex portions provided above and below the leg engaging convex portion 6.

A click structure is formed by the click plate 3 and the leg engaging protrusions 6 to 8. In this structure, when the click plate 3 is moved together with the switch knob 2 from the illustrated state in the direction of arrow A so that the switch is turned ON, the click leg 5 is bent in the direction of arrow B, so that the overpass end 5a Immediately after passing over the leg engaging convex portion 6 upward in the figure, the leg engaging convex portion 6 and 7 are elastically engaged. This gives you a sense of moderation and at the same time keeps the switch in the ON position. Also, press arrow C to turn the switch OFF.
When the slide knob is pulled down in the direction, the click leg 5
Immediately after the climbing end portion 5a climbs over the leg engaging convex portion 6 downward in the figure due to the bending of the leg portion 5a, the leg portion 5a elastically engages between the leg engaging convex portions 6 and 8. At the same time, the switch is held in the OFF position, giving a sense of moderation.

[Problem that the invention attempts to solve]

However, according to the above click structure,
Since the click leg 5 is provided protruding outside the width dimension D of the click plate 3, a considerably large width E is required to arrange the click structure, so it is desirable to downsize the equipment in which this click structure is installed. There was a problem that it was easy to become an obstacle in the case. Furthermore, in the conventional click structure, the amount of deflection is the same no matter which direction the click leg 5 rides over the leg engaging convex portion 6. In other words, in the past, there was a problem in that the sense of moderation associated with the click operation was the same.
For this reason, for example, in the case of the switch mentioned above,
If it is impossible to lighten the ON operation force and increase the OFF operation force, and the elastic force of the click leg 5 has decreased, or if the design is designed in advance to reduce the ON operation force, use I got it wrong
There is a high possibility that the slide knob 2 will be operated to the OFF position.

Accordingly, an object of the present invention is to provide a click structure that can be made small and that allows the operating force of the click operation to be differentiated between strengths and weaknesses.

[Means for solving problems]

Therefore, in order to solve the above-mentioned conventional problems, the present invention includes a pair of elastically deformable click legs provided on a click plate that moves together with the slide knob, and a fixed click leg that engages with the overpassing ends of the tips of these legs. A leg engaging convex portion is provided within the width dimension of the click plate. At the same time, the pair of click legs includes a first leg section provided along the sliding direction, and a second leg section integrally folded back from the tip of the first leg section and having the overpass end section. Formed from parts. Furthermore, the second leg is formed to be more flexible than the first leg.

[Effect]

Since the click structure of the present invention has a pair of click legs and a leg engaging protrusion within the width dimension of the click plate, it does not require space on both sides of the click plate in the width direction to provide a pair of click legs. Therefore, it is suitable for installation in equipment that is intended to be miniaturized. When the click plate is moved together with the slide knob so that the base of the click leg approaches the leg engaging protrusion, the second leg, which is more flexible than the first leg, moves closer to the first leg. As a result, the over-over end of the tip of the click leg overrides the leg-engaging end, elastically engaging with the end, and at the same time providing a sense of moderation. In this case, depending on the degree of elasticity of the first leg, the first leg may or may not bend a little after the elastic deformation of the second leg has progressed considerably. be. The degree of moderation in the above case mainly depends on the deflection of the second leg. Furthermore, if the click plate is moved together with the slide knob so that the base of the click leg approaches the leg engaging convex part from the above-mentioned state, the second leg will receive a force in the direction away from the first leg. However, movement in that direction is restricted by the fact that the second leg is folded back against the first leg, so the second leg only bends slightly, and then the first leg is bent. As a result, the over-over end of the tip of the click leg overrides the leg-engaging end and elastically engages with it, while at the same time providing a sense of moderation. The degree of moderation in this case mainly depends on the deflection of the first leg.

〔Example〕

Hereinafter, one embodiment of the present invention will be described with reference to FIGS. 1 to 6.

11 in Fig. 2 is a front case member 12 made of synthetic resin.
This is a main body case formed by connecting the rear case member 13 and the rear case member 13. In addition, in FIGS. 1 and 2, 13 is an engaging pawl for connection, and 14 is a screw for connection. Inside the main body case 11, a printed circuit board 16 to which circuit components such as a transformer 15, a resistor (not shown), a diode, etc. are attached is housed, and a storage battery (not shown) is housed. Further, a charging plug 17 with a plug blade that can be freely inserted and removed is housed in the lower part of the main body case 11, and a motor 18 is housed in the upper part of the main body case 11. An outer cutter 19 is removably screwed into the upper part of the main body case 11, and an inner cutter 20 rotated by a motor 18 is in sliding contact with the inner surface of the outer cutter 19. In addition, the second
In the figure, 21 is a decorative plate attached to the front surface of the front case member 12.

The main body case 11 is provided with a sliding switch mechanism 22. This switch mechanism 22 includes a slide knob 23 made of synthetic resin, a click plate 24 made of elastic synthetic resin, a switch contact piece 25 attached to this plate 24 by heat caulking, etc., and this contact piece 25 makes contact. It is formed from a switch circuit pattern (not shown) on the printed circuit board 16 that is separated from the switch. For example, this switch mechanism 22 is turned on when the slide knob 23 is slid upward, and turned off when it is slid downward, thereby causing the electric power from the storage battery (not shown) to be energized to the motor 18. and blocking.

As shown in FIG. 2, the slide knob 23 is provided so as to be slidable, for example, in the vertical direction along the inner surface of a rectangular groove 26 provided on the front surface of the front case member 12. As shown in FIG. 1, the click plate 24 is provided so as to be slidable in the vertical direction along a guide 27 provided on the inner surface of the front case member 12. A pair of connecting claws 28 provided on the slide knob 23 and passing through the front case member 12 are engaged with the click plate 24, and the click plate 24 is moved together with the slide knob 23 by this connection. It's getting old.

Further, as shown in FIG. 1, the click plate 24 is integrally provided with a lock piece 29 having a hole. The front part of this lock piece 29 is attached to the front case member 12.
It passes through the slide knob 23 and the rear end thereof is adapted to be engaged with and disengaged from a rod-shaped lock portion 30 formed from a part of the front case member 12. This locking piece 29 is supported by a bridge-shaped elastically deformable part 31 that is integrated with the click plate 24, and its elasticity causes the edge of the hole to be pushed into the locking part 30.
The slide knob 23 is always engaged with the tip to stop the slide knob 23 from moving. And elastic deformation part 31
By pushing in the lock piece 29 with your finger while bending it backward, the hole in the lock piece 29 is exactly opposite to the tip of the lock part 30, and the subsequent slide knob 23
and allows movement of the click plate 24.

Then, the switch mechanism 22 is turned on and off.
This is done with a sense of moderation using the click structure described below. As shown in FIGS. 1 and 3 to 6, this click structure includes a click plate 24 that integrally has a pair of elastically deformable click legs 33, and an inner surface of the front case member 12 as a fixing member. It is formed from a leg engaging convex portion 35 which is integrally provided in a protruding manner and is engaged with a transfer end portion 34 at the tip of the click leg 33. These click legs 33 and leg engaging protrusions 35 are provided within the width dimension of the click plate 24, as shown in FIG. The pair of click legs 33 are shown in FIGS. 3 to 6.
As shown in detail in the figure, a first leg portion 36 is provided along the sliding direction of the click plate 24, etc., and the tip of the first leg portion 36 is folded back into a U-shape, and the above-mentioned override end portion 34 is provided. It is formed from a second leg portion 37 having at its tip. The second leg portion 37 is the first leg portion 3
shorter than 6. Moreover, the second leg portion 37 is the first leg portion 3
It is formed to be more flexible than 6. Further, the leg engaging convex portion 35 is a cylindrical convex portion.

According to the above-described click structure, since the pair of click legs 33 and the leg engaging protrusions 35 are provided within the width dimension of the click plate 24, the click plate 2
There is no need for space for providing a pair of click legs 33 on both sides of the frame 4 in the width direction. Therefore, the area required for installing this click structure is small, and it is less likely to become an obstacle to downsizing the electric shaver, making it suitable for installation in equipment intended to be downsized.

When the slide knob 23 is slid upward to turn on the switch mechanism 22, the click plate 24, which is moved together with the slide knob 23,
The base portion of the click leg 33 is displaced so as to approach the leg engaging convex portion 35. Then, the second leg part 37, which is more flexible than the first leg part 36, is bent closer to the first leg part 36. The state change during this time is the third
As shown in FIG. 4, the distance G between the legs 36 and 37 in the state shown in FIG. 4 is smaller than the distance F between the legs 36 and 37 in the state shown in FIG. Due to such flexure of the second leg portion 37, the overcoming end portion 34 at the tip of the click leg 33
passes over the leg engaging end 35 from the lower side to the upper side and elastically engages with it (this state is shown in FIG. 5), while at the same time providing a sense of moderation. In this case, the first leg 36 may bend a little after the elastic deformation of the second leg 37 has progressed considerably, although it depends on the elasticity of the first leg 36. Sometimes there isn't.

The degree of moderation in the above case is given mainly depending on the deflection of the second leg portion 37.

Also, when the switch mechanism 22 is turned OFF by sliding the slide knob 23 downward,
The click plate 24 that is moved together with the slide knob 23 is displaced so that the base of the click leg 33 moves away from the leg engaging protrusion 35. Therefore, the second leg 37 receives a force in the direction away from the first leg 36 (indicated by an arrow in FIG. 5), but the movement in that direction causes the second leg 37 to Because it is restrained by being folded against
The second leg 37 is only slightly bent, and the first leg portion 36 is then bent in the direction of the arrow in FIG. By that,
The over-over end 34 at the tip of the click leg 33 goes over the leg engaging end 35 from the upper side to the lower side and elastically engages with it (this state is shown in FIG. 3), and at the same time provides a sense of moderation. give.

The degree of moderation in this case is given mainly depending on the deflection of the first leg portion 36.

That is, according to the above-described click operation, when turning on the switch mechanism 22, it is possible to provide a light sense of moderation depending on the deflection of the second leg portion 37, which is easy to deflect, and to turn on the switch mechanism 22.
When turning OFF, a heavy sense of moderation can be given depending on the deflection of the first leg portion 36, which is less flexible than the second leg portion 37. Therefore, due to the difference in the strength of the sense of moderation as described above, it is possible to reduce the possibility that the user will accidentally turn the switch OFF when the switch is ON.

Although the above embodiment is configured as described above, in implementing the present invention, for example, a switch may be used.
There is no harm in making the sense of moderation when turning on the switch stronger than the sense of moderation when turning it off. Furthermore, the present invention is not limited to the click structure that provides moderation to the switch; for example, when inserting and removing the razor blade of an electric razor, the moderation when retracting the blade is greater than the moderation when protruding the blade. It can also be applied to a structure in which the moderation is strengthened to ensure a large holding force when the blade is in a protruding state of use.

[Effect of idea]

As explained above, the present invention has a pair of elastically deformable click legs that provide a sense of moderation, and a fixed leg engaging protrusion that engages with the tips of these legs, and the width dimension of the click plate that is moved with the slide knob. Since the click leg is provided inside, the structure can be made smaller, and since the click leg is formed by folding back the second leg, which is more flexible than this leg, at the tip of the first leg, there is no difference in strength or weakness in the operating force of the click operation. It has the practical effect of being able to be attached.

[Brief explanation of drawings]

1 to 6 show an embodiment of the present invention,
Figure 1 is a rear view of the front case member of the electric shaver.
FIG. 2 is a longitudinal sectional side view of the electric shaver, and FIGS. 3 to 6 are front views showing different states of the click structure. FIG. 7 is a front view showing a conventional example. 23...Slide knob, 33...Click leg,
24...Click plate, 12...Front case member (fixing member), 34...Climb over end, 35...Leg engaging convex portion, 36...First leg, 37...Second leg.

Claims (1)

[Scope of Claim for Utility Model Registration] A click board that integrally has a pair of elastically deformable click legs that move together with the slide knob;
In the click structure, the pair of click legs and the leg engaging convex portion are provided on the fixed member that guides the sliding of the slide knob, and the leg engaging convex portion is engaged with the over-crossing end portion of the tip of the click leg. Provided within the width dimension of the above click board,
The pair of click legs includes a first leg section provided along the sliding direction, and a second leg section integrally folded back from the tip of the first leg section and having the overpassing end section. A click structure characterized in that the second leg is more flexible than the first leg.