JP2002208329A - Switch structure of two-step detent - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a switch structure of two-step detent in which the reduction of the type of components and the number of components can be achieved by making common the components and by efficient utilization of the components. SOLUTION: The switch comprises a pair of movable pins 14, 14 formed with arc face R at the top end that are opposed to a pair of contact part 12a, 12a provided at the contact rubber 12, a switch knob 16 that is arranged over the top ends of the pair of movable pins 14, 14 and formed with an index protrusion 18 by being installed capable of pushing in, a supporting movable pin 15 that contacts with the index protrusion 18 and is formed with an arc face at the top end that becomes the inclining fulcrum of the switch knob 16, and a case 13 that supports the movable pins 14, 14 and the supporting movable pin 15 respectively in free sliding. The supporting movable pin 15 uses the same member as the movable pin 14 and the top end part of arc face R contacts with the index protrusion 18.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a two-stage moderation switch structure for selectively turning on and off a pair of contact points.

[0002]

2. Description of the Related Art Conventionally, there is a two-stage moderation switch 1 as shown in FIG. This switch 1 is provided with a contact rubber 3 having a pair of contact portions 3a, 3a on the surface of a substrate 2,
A switch knob 5 is provided on a case 4 that covers the contact rubber 3. The switch knob 5 is tilted in the direction in which the contact portions 3a, 3a are opposed to each other with the fulcrum movable pin 6 abutting on the detent ridge 5a formed on the switch knob 5 as a fulcrum. One of the corresponding pair of movable pins 7, 7 is pushed in, and the contact portion 3a on the pushed-in side is turned on.

The fulcrum movable pin 6 and the movable pins 7, 7 are slidably supported by the case 4, respectively. The fulcrum movable pin 6 is attached by a spring 8 in a direction in which the switch knob 5 is pushed up. As well as
An upper end portion in the figure has an arc surface R1 for supporting the detent mountain 5a in such a manner that it can tilt freely. The lower ends of the movable pins 7, 7 in the figure are connected to the contact portions 3a, 3a.
a, and the upper end in the figure has an arcuate surface R2 for contacting the pressing surfaces 5b and 5c of the switch knob 5 like the fulcrum movable pin 6 so as to be tiltable.
It has become.

[0004]

However, such a conventional two-step mode switch 1 comprises a substrate 2, a contact rubber 3, a case 4, a switch knob 5, a fulcrum movable pin 6, movable pins 7, 7, and a spring 8. And 8 parts. As described above, the use of many types and multiple parts necessitates an increase in cost due to an increase in man-hours for forming the parts and complicated assembling properties.

[0005] For this reason, it is advantageous in terms of cost reduction to reduce the types of component parts and the number of components. However, in the two-stage moderation switch 1, each tip of the fulcrum movable pin 6 and the movable pin 7 is formed. Since the contact rubber 3 is formed on an arc surface and has a biasing function by the elastic force of rubber, the movable pin 6 for the fulcrum and the movable pin 7 can be shared, and the function of the spring 8 can be used for the contact rubber 3. May be added.

Accordingly, the present invention provides a two-stage moderation switch structure capable of reducing the number of types of components and the number of components by sharing the used components and effectively using the used components. The purpose is to:

[0007]

According to a first aspect of the present invention, there is provided a contact rubber provided with a pair of contact portions arranged at a predetermined interval, and provided at a front end portion provided opposite to each contact portion. And a pair of movable pins that are pushed by a pressing force acting on the arcuate surface to actuate the contact portion, and are disposed straddling between the distal ends of the pair of movable pins, and are tiltable in a direction of pushing the respective movable pins. A switch knob which is freely mounted and has a moderating ridge formed at a position corresponding to an intermediate portion between the distal ends of the respective movable pins; An arcuate surface that is in contact with the switch knob and serves as an inclined fulcrum of the switch knob; and And a case for slidably supporting each of the fulcrum movable pins. The switch has a two-stage moderation, and uses the same member as the fulcrum movable pins as the fulcrum movable pins. The case is slidably supported on the case while applying the urging force of the urging means, and the arc-shaped tip portion is brought into contact with the detent mountain.

In this case, when a pressing force is applied to the switch knob, the movable pin serving as a fulcrum movable pin abutting on the detent mountain is pushed down against the urging means. Is added, the switch knob is inclined about the tip of the movable pin as a fulcrum. Then, one of the pair of movable pins corresponding to the contact portion of the contact rubber is pushed in, and the corresponding contact portion is operated. When the switch knob is tilted in the opposite direction, the other movable pin is pushed in and the corresponding contact portion is activated. Then, by releasing the pressing force of the switch knob, the switch knob is pushed up together with the movable pin serving as the fulcrum movable pin by the urging means to return to the initial state. At this time, since the same member as the movable pin is used as the movable pin for the fulcrum (that is, three movable pins are used), the types of components constituting the entire switch are reduced by the amount of the movable pin for the fulcrum. Become.

According to a second aspect of the present invention, in the two-stage moderation switch structure according to the first aspect, a protruding portion integrally protruded from the contact rubber is used as the urging means, and the tip of the protruding portion is connected to the protruding portion. It is characterized in that it comes into contact with the base end of the fulcrum movable pin.

In this case, the protruding portion integrally projecting from the contact rubber has a resilient force due to the elastic force of the rubber, and the protruding portion is brought into contact with the base end of the fulcrum movable pin, whereby the movable pin It can exert a restoring force against the pushing. Therefore, the raised portion can be used as an urging means, and the contact rubber can be provided with a function as an urging means, so that the urging means conventionally used as a separate body can be eliminated. For this reason, the type and the number of components are reduced.

[0011]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. 1 and 2 show one embodiment of a two-stage moderation switch structure according to the present invention.
2 is a cross-sectional view of the switch, and FIG. 2 is an enlarged cross-sectional view of a main part taken along line AA in FIG.

That is, the two-stage moderation switch 1 of this embodiment
1, a case 13 is provided so as to cover the contact rubber 12 provided on the substrate 11 as shown in FIG.
Has a pair of movable pins 14 and 14 and a movable pin 1 for a fulcrum.
5 are slidably supported, and these movable pins 1
4, 14 and a switch knob 16 is provided so as to cover the tip of the fulcrum movable pin 15.

The contact rubber 12 is provided with a pair of contact portions 12a, 12a at predetermined intervals, and the movable pins 14, 1 correspond to the respective contact portions 12a, 12a.
4 are arranged. The movable pins 14 have an arcuate surface R at the upper end in the figure, and the base 1 at the lower end in the figure has a flange 1 abutting on the contact portions 12a.
A cylindrical portion 14b between the arc surface R and the flange portion 14a is slidably fitted into a pair of first support holes 13a, 13a formed in the case 13.

The switch knob 16 is connected to the movable pin 1.
The movable pins 14, 14 move in the direction of pushing the movable pins 14, 14 (vertical direction in the figure) to the tip of a cylindrical portion 17 rising from the case 13 and surrounding the movable pins 14, 14 and the fulcrum movable pins 15, and the respective movable pins 14. , 14 are attached so that they can be inclined in the direction in which the two are opposed to each other (left-right direction in the figure). A moderation peak 18 is formed inside the switch knob 16 at a position corresponding to an intermediate portion between the distal ends of the movable pins 14, 14, that is, at a substantially central portion inside the switch knob 16 in this embodiment. Is done.

Further, the switch knob 16 of the moderation mountain 18
The movable pins 14, 14 are provided on both sides in the direction in which
There are provided inclined seats 16a, 16a with which the abutment is made.
These inclined seats 16a, 16a are inclined such that the amount of protrusion increases in the respective facing directions. On the both sides of the cylindrical portion 17 in the direction perpendicular to the paper surface in FIG. 1, protrusions 17a, 17a which are engaged with the switch knob 16 and serve as pivot points for the switch knob 16 are formed as shown in FIG.

The tip of the fulcrum movable pin 15 is in contact with the top of the detent mountain 18 so that the switch knob 16 can be inclined with the tip as a fulcrum. The tip of the pin 15 is required to be an arc surface.

In this embodiment, the movable pin 14
Attention is paid to the fact that an arc surface R is formed at the tip of the movable pin 14. The same member as the movable pin 14 is used as the fulcrum movable pin 15. That is, the fulcrum movable pin 1
As 5, the movable pins 14 are diverted, and a total of three movable pins 14 are used. The movable pin 15 for the fulcrum is formed by the pair of first support holes 13 a formed in the case 13.
The arcuate surface R at the tip of the fulcrum movable pin 15 is slidably fitted into the second support hole 13b formed between the holes 13a. A flange 14a formed at the base end of the fulcrum movable pin 15 is in contact with the tip of a raised portion 19 integrally projecting from the contact rubber 12. The raised portion 19 is formed integrally with the contact rubber 12 made of a rubber material and has elasticity, and is used as an urging means.

As shown in FIG. 2, the raised portion 19 has a first-stage first contact rubber 12 having a contact rubber 12 projecting in a hollow shape.
Moderation dome 19a and second-stage second moderation dome 19b
And are arranged side by side. Each of the first and second moderation domes 19a and 19b has a thick contact seat 2 on its top.
0, 20a are formed, and the abutment seat 20 of the first moderation dome 19a has a larger protrusion than the abutment seat 20a of the second moderation dome 19b.
a, the contact seat 20a and the flange 14
a is provided with a predetermined gap δ.

With the above-described configuration, when the switch 10 of the two-stage moderation of this embodiment applies a pressing force to the switch knob 16, the fulcrum movable pin 15 abutting on the moderation mountain 18 firstly has the The dome 19a is pushed down against the urging force of the dome 19a. Next, in this state, when a pressing force is applied to the switch knob 16 in one of the inclined directions, the fulcrum movable pin 15 is further pushed down against the urging force of the second moderation dome 19b, and the switch knob 16
Are inclined with the arcuate surface R at the tip of the fulcrum movable pin 15 as a fulcrum. Then, one of the movable pins 14 is pushed in by the inclined seat 16a pushed down by this inclination, and the corresponding contact portion 12a is pressed to operate. When the switch knob 16 is inclined in the opposite direction, the other movable pin 14 is pushed in by the inclined seat 16a, and the corresponding contact portion 12a is actuated.

Thereafter, by releasing the pressing force of the switch knob 16, the first and second moderation domes 19a, 19b are released.
The switch knob 16 is pushed up together with the fulcrum movable pin 15 by the urging force of the raised portion 19 made of b, thereby returning to the initial state shown in FIG. At this time, the movable pins 14, 1
4 is simultaneously pushed up by the elastic force of the contact rubber 12, and is similarly set to the initial state.

The two-stage moderating switch 10 of the present embodiment has a fulcrum movable pin 1, which is the same member as the movable pin 14, as the fulcrum movable pin 15 abutting on the moderation peak 18.
5, the movable pin 14 can be simply used as the fulcrum movable pin 15, and the switch 10
The types of parts constituting the whole are reduced by the amount of the fulcrum movable pins 15. In addition, the fulcrum movable pin 1
As the urging means 5, the raised part 19 projecting integrally from the contact rubber 12 is used, so that the urging means conventionally used as a separate body can be eliminated, and the components of the entire switch 10 can be eliminated. Types and points can be reduced.

That is, in the conventional two-stage moderation switch 1 shown in FIG. 4, as described above, one substrate 2, one contact rubber 3, one case 4, one switch knob 5,
The movable pin 6 for two fulcrums, the two movable pins 7, 7, and one spring 8 are composed of eight types of eight parts.
In the switch 10 according to the present embodiment, one substrate 11, one contact rubber 12 with a ridge 19, one case 1
3, 3 movable pins 14, 5 of one switch knob 16
It can be composed of seven types of parts. Accordingly, the number of processing steps for parts can be reduced by reducing the number of types of component parts, and the number of assembly steps can be reduced due to the reduction in the number of parts, so that a reduction in product cost can be achieved.

FIG. 3 shows another embodiment, in which the same components as those in the above-described embodiment are denoted by the same reference numerals, and a description thereof will be omitted. FIG. 3 is an enlarged sectional view of a main part corresponding to FIG. 2. This embodiment is mainly different from the above-described embodiment in that the bulging portion 19 is formed in a solid multi-stage pyramid shape.

In this embodiment, as shown in FIG. 3, the bulging portion 19 is integrally provided from the contact rubber 12 similarly to the above-described embodiment, but in this embodiment, the bulging portion 19 is
It is configured as a three-stage stance that gradually tapers toward the tip. That is, the bulging portion 19 forms a small-diameter first moderation step 19c at the foremost portion and a slightly larger-diameter second moderation step 19d at the next stage (lower stage in the figure). ,
The second moderation step portions 19c and 19d are integrally formed so as to be stacked on the base step portion 19e. Needless to say, in order to form the bulging portion 19 as a solid type, it is necessary to use a sufficiently soft rubber material having a large compressive deformation rate for the contact rubber 12.

Therefore, in this embodiment, the switch knob 1
6, the fulcrum movable pin 15 mainly compresses and deforms the first moderation step portion 19c, and then the second moderation step portion by the pressing force of the switch knob 16 in the inclined direction. While compressing and deforming the 19d, a pair of movable pins 14 and 1
4 is further pushed in and the corresponding contact portion 12
a can be activated to exhibit the same function as in the above embodiment.

Of course, even in this embodiment, the first and second
The bulging portion 19 including the moderation step portions 19c and 19d and the base step portion 19e is used as biasing means of the fulcrum movable pin 15, so that the types and the number of components of the entire switch 10 can be reduced. become.

Although the embodiments have been described above, the present invention is not limited to these embodiments, and various changes accompanying the gist of the configuration of the present invention are possible.

[0028]

According to the first aspect of the present invention, a contact rubber, a pair of movable pins each having an arcuate surface formed at a tip, a switch knob having a moderation peak, and a moderation at a tip are provided. A two-stage moderator comprising: a fulcrum movable pin formed with an arcuate surface that comes into contact with a mountain to which an urging force is applied by an urging means; and a case that slidably supports the movable pin and the fulcrum movable pin. In the switch structure of the above, the movable pin is used as the fulcrum movable pin in view of the fact that the distal end of the movable pin is an arcuate surface. It can be reduced by the amount of the movable pin. Therefore, it is possible to reduce the number of processing steps of the component to be configured and to achieve a reduction in product cost.

According to the second aspect of the present invention, in addition to the effect of the first aspect, the raised portion integrally projecting from the contact rubber is used as the urging means for the fulcrum movable pin. Can be reduced in the type and the number of parts constituting. Accordingly, it is possible to reduce the number of processing steps and the assembling process of the components to be configured, and to further reduce the product cost.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of a two-stage moderation switch structure according to the present invention.

FIG. 2 is an enlarged cross-sectional view of an essential part taken along line AA in FIG. 1, showing one embodiment of a two-stage moderation switch structure according to the present invention.

FIG. 3 is an enlarged sectional view of a main part corresponding to FIG. 2, showing another embodiment of a two-stage moderation switch structure according to the present invention.

FIG. 4 is a sectional view of a conventional two-stage moderation switch structure.

[Description of Signs] 10 Two-stage moderation switch 11 Substrate 12 Contact rubber 12a Contact portion 13 Case 14 Movable pin 15 Movable pin for fulcrum 16 Switch knob 18 Moderation mountain 19 Ridge R Arc surface

Claims (2)

[Claims] 1. A contact rubber provided with a pair of contact portions arranged at a predetermined interval, and a contact rubber provided opposite to each contact portion and pushed by a pressing force acting on an arc surface formed at a tip portion. A pair of movable pins that actuate the contact portion, and are disposed so as to straddle between the distal ends of the pair of movable pins, and are mounted to be tiltable in a direction in which the respective movable pins are pushed in. A switch knob having a moderation peak formed at a position corresponding to an intermediate portion between the portions; and an arc surface disposed between the pair of movable pins and in contact with the moderation peak and serving as an inclination fulcrum of the switch knob. And a fulcrum movable pin to which an urging force is applied by the urging means in a direction opposite to the pushing direction of the switch knob; and a slidable sliding member that covers the contact rubber and slides the movable pin and the fulcrum movable pin. And a case that freely supports the case. The switch is a two-stage moderation switch structure comprising: A two-step moderation switch structure, wherein the switch section is slidably supported by a case and an arc-shaped end portion is brought into contact with the moderation mountain. 2. The two-stage moderation switch structure according to claim 1, wherein a protruding portion integrally protruded from the contact rubber is used as the urging means, and a tip of the protruding portion is connected to the movable pin for the fulcrum. A two-stage moderation switch structure characterized by being brought into contact with a base end.