JPS5928988A - Click apparatus - 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 click device applied to a sliding part of an electric shaver comb, a slide switch, and the like.

Conventionally, as this type of click device, @1 figure and 2
What is proposed is shown in the figure. That is, a housing 1 is provided with an elastically deformable bridge-like piece 2, a gourd-shaped opening 3 is formed in this bridge-like piece 2, and an operating member 4 such as a switch is formed.
The click shaft 5Yr is fitted into the round hole portion 3a of the opening 3. Therefore, as shown in Figures 3 to 5,
In a switch or the like where the sliding amount li needs to be reduced, the length L of the elastically deformable portion of the bridge piece 20 forming the opening 3 is shortened. Therefore, when the click shaft 5 of the operating member 4 moves from one round hole part 3a of the opening 3 to the other round hole part 3b, it pushes the central protrusion 6 of the bridge-like piece □2 outward, and Deform piece 2 to a steep angle.

Therefore, stress is concentrated on both ends 2a of the bridge-like piece 20, making it easy to break.

Also, conventionally, #! 6 and #I7, an elastic piece 9 having a wavy side profile is protruded from the housing 8, and the click shaft 5'ft of the operating member (not shown) is made to slide along the profile. Click devices have also been proposed. However, when the click shaft 5 moves, the central convex portion 1° of the elastic piece 9 is pushed and the elastic piece 9 is displaced, so the click shaft 5 is subjected to a reaction force F. A force is applied to the member in one direction. Therefore, there is a drawback that the operating member is tilted or the sliding movement is uneven, so that it does not slide smoothly.

In addition, since the direction in which the click shaft 5 pushes the elastic piece 9 is different between the forward stroke and the backward stroke of the click shaft 5, the change in operating force is different as shown in FIGS. 8 and 9, and the characteristics of the click are different. The disadvantage was that they were different.

Therefore, an object of the present invention is to provide a click device that does not weaken its durability due to excessive force even if the stroke is small, and that allows stable operation without any difference in click performance due to reciprocation. be.

An embodiment of the invention is shown in FIGS. 10 and 11.

In the figure, reference numeral 11 denotes a housing, which has a rectangular opening and has a pair of l1li8 made of an elastic material extending from its sloping side surfaces.
A C-shaped click piece 12 is provided in a protruding manner. These click pieces 12 have free end sides facing each other, and gourd-shaped openings 13 are formed point-symmetrically between these click pieces 12. Therefore, the central protrusion 14 is formed on both click pieces 12 so as to face each other. In addition, notched grooves 5 are formed in the sliding direction from both round hole portions 13a and 13b of the opening 13, so that the click piece 12 is easily bent. The operating member 16 has a protruding lick shaft that can be fitted into the circular hole portions 13a and 13b of the opening 13, and the operating member 16 can be slid in the longitudinal direction of the open loe 3 relative to the housing 11. It is supported by a suitable guide member.

According to such a configuration, since the click pieces 12 are formed facing each other and the click shaft 17 is fitted between them, the stroke i! of the click shaft 17 is reduced. By shortening the housing 11', sufficient deformation with click performance can be obtained, and even if the housing 11' is made of plastic material, it will not be damaged. Since the click piece 12'iC-shape is formed, the click piece 12 can be partially bent more easily, and damage to p1 can be surely prevented. Furthermore, since the pair of click pieces 12 are configured to be symmetrical at all points, the change in the reaction force from the click pieces 12 on the click shaft 17 with respect to the moving distance of the click shaft 17 is the same in both forward and backward movements of the operating member 16. , stable click force can be obtained. Further, the operating member 16 will not be tilted or shifted due to the click force. Note that even if it is not necessarily point symmetrical, the click shaft 17 receives the reaction force of the click piece 12 from both sides, so compared to the conventional one shown in FIG. I can figure it out.

Figures 11 to 16 show an example of an electric shaver fully equipped with the click device of this embodiment.

In the figure, reference numeral 20 denotes a main body case, the head of which is provided with a sliding fixed comb blade 21 and a movable comb blade 22, and a drive device 23 thereof is housed within the main body case 20. 2
A movable comb 4 has teeth along the fixed comb blades 21, and is attached to the main body case 20 so as to be vertically slidable. A housing 11' forming a part of the main body case 20 is formed inside the movable comb 24, and this housing 1
A pair of click pieces 12 (5) and 10 (FIG. 10) are provided at 1'.

Further, a click shaft 17 that fits into the click piece 12 is provided protruding from the back surface of the movable comb 24.

The movable comb 24 is further provided with a protruding lead portion 25 for operation.

In this configuration, when shaving the armpits, the movable comb 24 is used in a state close to the fixed comb blade 21 as shown in FIG. When shaving legs, face, arms, etc., the movable comb 24 is moved away as shown in FIG. 14. @13 In the state shown in Fig. 13, the click shaft 17 of the movable comb 24 is fitted into one round hole 13a of the opening 13 between the click pieces 12, and the first
In the state shown in FIG. 4, it fits into the other round hole 13b.

In the above embodiment, the housings 11, 11"i are fixed and the click shaft 17 is moved, but the housings 11, 11"i may be moved to perform the click operation.

As described above, in the click device of the present invention, the P base end made of an elastic material is fixed to a common housing, and the side surfaces of the free ends are arranged to face each other, and the above-mentioned (6) protrusion facing the free end side surface is provided. a pair of click pieces formed with a projection, and a pair of click pieces that are movable relative to the housing and are fitted between the free end side surfaces of the click pieces so as to be able to bend the click pieces and pass between the protrusions. Because it is equipped with an inserted click shaft, even if the stroke of the click operation is small, there is no unreasonable force acting on it and weakening its durability, and there is no difference in click characteristics due to reciprocation, and it is stable. The effect of being able to perform operations is planned.

[Brief explanation of drawings]

FIG. 1 is a plan view of a conventional click device, FIG. 2 is an exploded perspective view thereof, and FIG. 3 is a plan view of another conventional click device.
FIG. 4 is a cross-sectional view of the same, and FIG. 5 is an explanatory diagram of its operation.
FIG. 6 is a plan view of yet another conventional click device, and FIG.
FIG. 8 is an explanatory diagram of the operating force characteristics of the forward stroke, FIG. 9 is an explanatory diagram of the operating force characteristics of the backward stroke, and FIG. 10 is an explanatory diagram of the operating force characteristics of the forward stroke. 11(A) and 11(B) are explanatory diagrams of its operation, FIG. 12 is a front view of the electric shaver equipped with the click device of this embodiment, and FIG. 13 is a partially cutaway side view thereof. , 14th
The figure also shows a partially cutaway side view of its different operating states, the first
Figure 5 is a front view of the housing, and Figure 16 is the first view.
5 is a sectional view taken along the line xvt-xv in FIG. 5. FIG. DESCRIPTION OF SYMBOLS 11, 11'...Housing, 12...Click piece, 13...Opening, 13a, 13b...Round hole part, 14...Protrusion, 15...Notch groove, 16... Operating member, 17...Click axis, 20...Main body case, 24...Movable comb, 25...Lead department agent for operation Patent attorney Akio Ii Figure 13 Figure 14 Figure 15 Figure 16 Figure 490-

Claims (2)

[Claims] (1) a pair of click pieces made of an elastic material, the base ends of which are identified by a common housing, the side surfaces of the free ends facing each other, and a protrusion facing the free end side surfaces formed therein;
a click shaft provided movably relative to the housing and fitted between the free end sides of the click piece so as to bend the click piece and pass between the protrusions; . (2) The click device according to claim (1), wherein a lead portion for operation is formed on the click shaft.