JPH10177827A - Rotary type position switch with push switch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the number of partitems so as to achieve miniturization by placing both a rotary switch part and a push switch part in common use with a contact part of the same functional parts as a center. SOLUTION: By placing a rotor 29 in rotation, in a moderation pin 25, the irregular part 30 for moderation moves from a recess over a projection to another recess by being accompanied with a sense of click. Following this movement, three contact points of a contact piece 31 maintained on the opposite surface to the rotor 29 move sequentially. Next, in a normal state, or in such state as the rotor 29 being rotationally switched to each step, the upper end part of the rotor 29 is pressed downward against the force of a coil spring 28 and the rotor 29 is moved downward in parallel to a contact substrate. Then, the moderation pin 25 rides on the step part in the radial direction of the moderation rugged part 30 by being accompanied by moderation feeling and consequently thereto, three contact points of the contact piece 31 move downward respectively. Meanwhile, a step part in the radial direction is made a little high, so that the rotor 29 may not be pressed downward in rotational operation of the rotor 29 not to be subjected to pushing operation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary type position switch with a push switch, which is mainly incorporated in an operation panel of an electronic device and generates a signal by a rotation operation and a push operation of an operation knob.

[0002]

2. Description of the Related Art A conventional switch with a push switch of this type will be described with reference to FIGS.

FIG. 8 is a cross-sectional view of a conventional rotary type position switch with a push switch, and FIG. 9 is an exploded perspective view of the rotary type position switch, wherein 1 is a first outer case made of resin, and 2 is a second outer case. On the inner surface of the first outer case 1, a fixed contact 3 with a terminal 3A of a rotary switch portion is fixed by insert molding, and a holding portion 5 for attaching a single push switch 4 is integrally provided. The second outer case 2 is combined with the first outer case 1 by engaging the engaging pawl 1A on the side of the first outer case 1 with the engaging hole 2A on the side thereof to form the outer case of the present switch. The movable case 6 in which the first middle case 6A and the second middle case 6B are combined in the same manner as the outer case is accommodated therein so as to be movable up and down, and the movable case 6 is taken up by the holding portion 5 so as to contact below. Attached Are pushed upward by the urging force of the push switch alone 4 of the spring (not shown) which are.

A substantially disk-shaped rotor 7 for a rotary switch unit also serving as an operation knob is rotatably held in the movable case 6, and a moderation spring 8 is attached to one surface of the rotor 7. The biased moderation pin 9 is held and elastically contacts the moderation concave / convex portion 10 on the inner surface of the second middle case 6 </ b> B, and is held on the other surface of the rotor 7. The two contact points are in elastic contact with the fixed contacts 3 on the inner surface of the first outer case 1 through the through holes 6C of the first middle case 6A.

The operation of the conventional rotary type position switch with push switch configured as described above is performed by rotating the rotor 7 by pressing the upper end of the rotor 7 projecting upward from the outer case in the tangential direction in FIG. As a result, the moderation pin 9 for the rotary switch held by the rotor 7 moves with a sense of moderation from the concave portion of the moderation uneven portion 10 to the next concave portion beyond the convex portion, and is held on the opposite surface. In the pattern of the fixed contact 3 shown in FIG. 10, for example, the two contact points of the contact piece 12 are changed from the contact between the common contact 3B and the individual contact 3C to the contact between the common contact 3B and the individual contact 3D. It is moving, and the rotor 7
The movable case 6 is moved downward by pushing the upper end of the push switch downward, and the protrusion 6D at the lower end of the second middle case 6B operates the push switch unit 4 to send the signal to each terminal 3.
A, 4A was transmitted to the outside.

When the movable case 6 moves downward to operate the push switch 4 alone, the contact piece 12 also moves downward on the fixed contact 3 as shown by black and white circles in FIG. In the pattern No. 3, all contact points have a large downward margin, so that the contact state does not change.

The conventional rotary type position switch with push switch is configured as described above, and the contact circuit of the switch is as shown in the switch circuit diagram in the case where the rotary switch section is a three-position type in FIG. In addition, the rotary switch section and the push switch section are independent of each other, and when assembling into an electronic device, one of the terminals 4A of the push switch section and the terminal of the common contact 3B of the rotary switch section are short-circuited and used as a common terminal. Was usually done.

[0008]

However, in the rotary type position switch with push switch having the above-mentioned conventional configuration, the rotary switch portion and the push switch portion are mechanically and electrically independent from each other. There is a problem that the number of components is large, the size is large, and the cost is high.

SUMMARY OF THE INVENTION An object of the present invention is to provide a rotary type position switch with a push switch which can reduce the number of components, reduce the size, and reduce the cost. Things.

[0010]

SUMMARY OF THE INVENTION In order to solve the above problems, a rotary type switch with a push switch according to the present invention is a component having the same function of a rotary switch and a push switch in consideration of the state of use in electronic equipment. Are shared and centered around the contact portion to reduce the number.

According to the present invention, a small-sized and low-cost rotary type position switch with a push switch can be realized.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS According to the first aspect of the present invention, each contact point of a contact board having a fixed contact composed of a common contact and a plurality of individual contacts and a contact piece having three contact points are equal. A contact piece that holds the contact piece so that the contact piece resiliently contacts the contact board with a proper contact pressure. In a normal state, the first contact point of the contact piece contacts the common contact of the fixed contact, and the second and third contact points One is in contact with the first individual contact, but the other contact point is not in contact with any contact, and by rotating the rotor, the first contact point remains in contact with the common contact However, one of the second and third contact points is in contact with the second individual contact, the other contact point is not in contact with any of the contacts, and the rotor is contacted in the normal state or in a state where the rotor is switched over. If you push in parallel with the board, One contact point remains in contact with the common contact and one of the second and third contact points remains in contact with the first or second individual contact, respectively, but the other contact does not contact any contact The point is in contact with the third individual contact, and the push switch section and the rotary switch section are mechanically and electrically shared to reduce the number of component parts. This has the effect that a position switch can be realized.

According to a second aspect of the present invention, there is provided a contact board having a fixed contact comprising a common contact and a plurality of individual contacts, and each contact point of a contact piece having three contact points is formed on the contact board with uniform contact pressure. A rotor that holds the contact pieces so as to resiliently contact each other, and in a normal state, the first contact point of the contact piece contacts the common contact of the fixed contact, and one of the second and third contact points is the first individual contact point. While contacting the contacts, the other contact point does not contact any of the contacts, and in the first step of the rotation switch of the rotor, the first contact point remains in contact with the common contact, but the second and One of the third contact points contacts the second individual contact, the other contact point does not contact any of the contacts, and the first contact point contacts the common contact when the rotor is switched in the second step. Remains in contact, but one of the second and third points of contact When the rotor touches the third individual contact and the other contact point does not contact any contact, and furthermore, pushes the rotor in parallel with the contact board in a normal state or a state in which the rotor is switched in each step, the first contact is obtained. The contact point remains in contact with the common contact, and one of the second and third contact points remains in contact with the first, second, or third individual contact, respectively, but the other that did not contact any contact The contact point is in contact with the fourth individual contact, and the push switch section and the rotary switch section are mechanically and electrically shared so that the number of component parts is reduced and the rotary with push switch is a three-position type. This has the function of realizing a mold position switch.

According to a third aspect of the present invention, in the first or second aspect of the present invention, the detent spring is urged against the first outer case in the form of a contact board having an inner surface having a fixed contact. A box-shaped outer case formed by combining a plate-shaped second outer case having a moderating pin on the inner surface, and a single-sided open box housed in the outer case so as to be able to move up and down in parallel with the contact board surface. A movable body urged to be pushed upward by a spring, and a substantially disk shape rotatably held on a wall of the movable body, and engaged with a moderation pin on a side facing the second outer case. And a contact piece that elastically contacts the contact board on the side facing the first outer case, and the upper end is formed of a rotor protruding from the outer case. The invention according to claim 1 or 2 In addition to the effects by, an effect that it is possible to reliably rotate the switching operation with a click feeling the rotary switch section.

According to a fourth aspect of the present invention, in the third aspect of the invention, the thin elastic portion on the outer periphery of the rotor is snap-engaged with the plurality of claws on the end surface of the opening of the movable body, and the circular shape at the center of the rotor. The rotor is rotatably held by the wall of the movable body by fitting the protrusion into the hole at the center of the bottom surface of the movable body. The rotor and the movable body are easily and securely connected without tilt. It has the effect of being able to.

According to a fifth aspect of the present invention, in the third aspect of the invention, a circular projection at the center of the rotor having a retaining piece is inserted into a hole of the same shape as the retaining piece at the center of the movable body wall. The rotor is rotatably held by the wall of the movable body by twisting the rotor by a predetermined angle, and the rotor and the movable body can be easily and reliably connected to each other. Has the effect of being able to

According to a sixth aspect of the present invention, in the invention according to any one of the third to fifth aspects, the moderating pin provided in the second outer case has a spherical rod-shaped tip, and the rotor corresponding thereto is provided. In addition to the concave / convex portions of the moderation, in addition to the concave / convex portions in the circumferential direction corresponding to the movement in the rotation direction of the rotor, the concave / convex portions in the radial direction are equivalent to the concave / convex portions in the radial direction in response to the downward movement of the movable body Or, a configuration in which a step portion higher than this is provided is provided, and the combination of the moderation pin and the moderation uneven portion has an effect that a moderation feeling can be generated at the time of the rotation switching operation and the push operation of the rotor. .

FIG. 1 shows an embodiment of the present invention.
This will be described with reference to FIGS. (Embodiment 1) FIG. 1 is a sectional view of a rotary position switch with a three-position push switch according to a first embodiment of the present invention, and FIG. 2 is an exploded perspective view thereof. A box-shaped first outer case 22 made of a resin is a box-shaped second outer case 22 combined with the resin. An inner surface of the first outer case 21 has a fixed contact 24 with a terminal 23 and a pattern diagram of FIG. As shown in FIG. 5, the contact board is a contact board fixed by insert molding by disposing first to fourth individual contacts 24B to 24E around the common contact 24A. A spherical rod-shaped moderation pin 25 is urged and held by a moderation spring 26, and the second outer case 22 is held in the same manner as in the prior art.
By engaging the engagement claws 21A on the side of the first outer case 21 with the engagement holes 22A on the side, the two are combined,
An outer case of the present switch is formed.

In the outer case, a box-shaped movable body 27 made of resin, which is open on one side, is housed so as to be able to move up and down in parallel with the inner surface of the first outer case 21 as a contact board.
Coil spring 28 mounted between the lower surface and the outer case
Has been pushed upwards.

Further, in the concave portion of the movable body 27, a substantially disk-shaped rotor 29 made of resin is rotated by fitting a circular projection 29A having a center on one surface thereof into a hole 27B at the center of the wall surface 27A of the concave portion. The movable member 27 is held movably, and its outer periphery is pressed by a plurality of claw portions 27C on the end surface of the opening of the movable body 27 to be prevented from coming off.

The method of housing and mounting the rotor 29 in the recess of the movable body 27 is performed by a thin elastic portion 29 on the outer periphery of the rotor 29.
B is aligned with the plurality of claw portions 27C on the end face of the opening of the movable body 27 and press-fitted along the outer tapered portion to be snap-coupled, and the circular projection 2 at the center of the rotor 29.
9A is fitted into a hole 27B at the center of the wall surface 27A of the movable body 27.

On one side of the rotor 29 combined as described above, a moderation concave / convex portion 30 whose front end held on the inner surface of the second outer case 22 of the outer case corresponds to the spherical rod-shaped moderation pin 25. However, as shown in the enlarged perspective views of FIGS. 1 and 4, the moderation unevenness portion 30 includes a circumferential unevenness portion 30A and a radial step portion 30B. In a normal state in which 27 is pushed up by the coil spring 28, the moderation pin 25 fits into the concave portion of the circumferential uneven portion 30A and is in elastic contact with the concave portion.

On the opposite surface of the rotor 29, there is held a contact piece 31 which resiliently contacts the fixed contact 24 on the contact board surface which is the inner surface of the first outer case 21 of the outer case. As shown by black circles in FIG. 3, the three contact points 31A, 31B, and 31C are urged by the contact springs 32 so as to elastically contact with uniform contact pressure.

The operation of the rotary position switch with a three-position push switch according to the present embodiment having the above-described configuration is performed by tangentially moving the upper end of the rotor 29 projecting upward from the outer case in FIG. By pushing and rotating the rotor 29, the moderation pin 2
5 is the circumferential unevenness 30A of the moderation unevenness 30;
It moves with a sense of moderation from the concave portion that had been in contact with the concave portion to the next concave portion beyond the convex portion, and accordingly, the three contact points 31A and 31A of the contact piece 31 held on the opposite surface of the rotor 29.
31B and 31C are pattern diagrams showing the contact state at the time of rotating operation of the switch contact in FIG. 5, from the normal state in FIG. 5A to the first step in FIG. 5B and the second step in FIG. The process sequentially proceeds to steps.

That is, the contact piece 31 shown in FIG.
The first contact point 31A is a common contact 24A of the fixed contact 24.
The second contact point 31B contacts the first individual contact 24B, and the third contact point 31C does not contact any contact, so that the first contact point 31A shown in FIG. The contact point 24A remains in contact, but the second contact point 31
B contacts the second individual contact 24C and the third contact point 31C
Transitions to a state where it does not touch any of the contacts,
Further, while the first contact point 31A shown in FIG. 3C remains in contact with the common contact 24A, the second contact point 31B does not contact any contact, and the third contact point 31C is in contact with the third contact point 31C. The state is shifted to a state of contacting the individual contact 24D, and the signal is transmitted to the outside through the terminal 23.

Next, in the above-described normal state or in a state where the rotation of the rotor 29 is switched to each step, the rotor 29
Is pushed downward against the force of the coil spring 28 and the rotor 29 is moved downward in parallel with the contact board, and the moderation pin 25 gives a moderation feeling to the radial step 30B of the moderation unevenness 30. Accordingly, the vehicle gets on, and the three contact points 31A, 31B, and 31C of the contact piece 31 are thereby connected, as shown in FIGS.
Move downward as indicated by white circles.

At this time, the first contact point 31A is connected to the common contact 2
4A, the second contact point 31B in the normal state is on the first individual contact 24B, the second contact point 31B in the first step is on the second individual contact 24C, and the third contact point 31C in the second step.
Remain in contact with the third individual contacts 24D, respectively.
The normal state and the third contact point 31C of the first step and the second contact point 31B of the second step, which are the contact points that have not contacted any of the contacts, are the fourth individual contacts 24E.
, And transmits the signal to the outside through the terminal 23.

The moderation uneven portion 3 of the rotor 29 described above.
The relationship between the height of the circumferential uneven portion 30A and the height of the step portion 30B in the radial direction is such that the radial step portion 30B is pressed so that the rotor 29 is not pushed downward when the rotor 29 is rotated. It is better to keep it a little higher.

In the above description, a rotary position switch with a three-position push switch has been described as an example. However, except for one of the above three positions, a rotary position switch with a two-position push switch is used. Since it is a position switch, its description is omitted.

As described above, the rotary type position switch with push switch according to the present embodiment shares the same functional parts of the rotary switch section and the push switch section with the contact section and the moderation generating mechanism during operation as the center. Thus, the number of components can be reduced.

(Embodiment 2) FIG. 6 is a sectional view of a rotary type position switch with a push switch according to a second embodiment of the present invention. The method of mounting in the recess is different.

That is, as shown in an exploded perspective view of a main part of FIG. 7, a circular projection 35 provided with a retaining piece 35A at the center of the rotor 33 at the tip is combined with the retaining piece 35A at the center of the wall surface of the movable body 34. The rotor 33 is mounted and connected to the movable body 34 by being inserted into the hole 34A having substantially the same shape and twisting at a predetermined angle, so that the rotor 33 can be easily and reliably connected.
The rotor 33 can be rotated with a small force.

[0033]

As described above, according to the present invention, the parts having the same function of the rotary switch part and the push switch part are replaced by the contact part and the moderation generating mechanism part at the time of operation in consideration of the use state in the electronic equipment. And the number of component parts is reduced to reduce the number of components, thereby obtaining an advantageous effect that a small, low-cost rotary type switch with a push switch can be realized.

[Brief description of the drawings]

FIG. 1 is a sectional view of a rotary type position switch with a push switch according to a first embodiment of the present invention.

FIG. 2 is an exploded perspective view of the same.

FIG. 3 is a pattern diagram of the contact board.

FIG. 4 is an enlarged perspective view of the concave and convex portion for the same degree.

FIG. 5 is a pattern diagram showing a contact state of a switch contact during the rotation operation. (A) A pattern diagram in a normal state. (B) A pattern diagram in a first step. (C) A pattern diagram in a second step.

FIG. 6 is a sectional view of a rotary position switch with a push switch according to a second embodiment of the present invention.

FIG. 7 is an exploded perspective view of the main part.

FIG. 8 is a sectional view of a conventional rotary type position switch with a push switch.

FIG. 9 is an exploded perspective view of the same.

FIG. 10 is a pattern diagram of a fixed contact of the rotary switch unit.

FIG. 11 is a switch circuit diagram when the rotary switch unit is a three-position type.

[Explanation of symbols]

 21 First Outer Case 21A Engagement Claw 22 Second Outer Case 22A Engagement Hole 23 Terminal 24 Fixed Contact 24A Common Contact 24B First Individual Contact 24C Second Individual Contact 24D Third Individual Contact 24E Fourth Individual Contact 25 Moderation Pin 26 Moderation spring 27, 34 Movable body 27A Wall surface 27B Hole 27C Claw 28 Coil spring 29, 33 Rotor 29A, 35 Circular projection 29B Thin elastic section 30 Moderation unevenness 30A Unevenness 30B Step 31 Contact piece 31A, 31B, 31C Contact point 32 Contact spring 34A Hole 35A Retaining piece

Claims (6)

[Claims] A contact board having a fixed contact composed of a common contact and a plurality of individual contacts, and a contact piece such that each contact point of a contact piece having three contact points resiliently contacts the contact board with a uniform contact pressure. In the normal state, the first contact point of the contact piece contacts the common contact of the fixed contact, and one of the second and third contact points contacts the first individual contact. The other contact point does not contact any of the contacts, and by rotating the rotor, the first contact point remains in contact with the common contact, but one of the second and third contact points remains in contact with the common contact. When contacting the two individual contacts, the other contact point does not contact any of the contacts, and when the rotor is pushed in parallel with the contact board in a normal state or a state in which the rotor is switched, the first contact point is Second and No. One of the three contact points remains in contact with the first or second individual contact, respectively, but the other contact point that did not contact any of the contacts is configured to contact the third individual contact. Rotary position switch with two-position push switch. 2. A contact board having a fixed contact composed of a common contact and a plurality of individual contacts, and a contact piece such that each contact point of a contact piece having three contact points resiliently contacts the contact board with a uniform contact pressure. In the normal state, the first contact point of the contact piece contacts the common contact of the fixed contact, and one of the second and third contact points contacts the first individual contact. The other contact point does not contact any of the contacts, and the first step of the rotation of the rotor switches, the first contact point remains in contact with the common contact, but one of the second and third contact points Contact the second individual contact, the other contact point does not contact any contact, the second step rotation switching of the rotor, the first contact point remains in contact with the common contact, One of the second and third contact points contacts the third individual contact If the other contact point does not touch any of the contacts, and if the rotor is pushed in parallel with the contact board in a normal state or in a state in which the rotor is switched in each step, the first contact point becomes the common contact, One of the second and third contact points remains in contact with the first, second, or third individual contact, respectively, but the other contact point that did not contact any of the contacts is a fourth individual contact. Rotary position switch with three-position push switch configured to come in contact with. 3. A plate-like first outer case having an inner surface serving as a contact board having a fixed contact and a plate-like second outer case having a moderation pin urged by a moderation spring on the inner surface. A box-shaped outer case formed, and a movable body urged to be pushed upward by a spring in a box shape with one side open housed in the outer case so as to be able to move up and down in parallel with the contact substrate surface. A substantially disc-shaped rotatably held on the wall of the movable body, a moderation concave / convex portion for engaging with a moderation pin on the side facing the second outer case to determine a rotation switching position, and a first outer case. The rotary position switch with a push switch according to claim 1 or 2, wherein a contact piece resiliently contacting the contact board is held on a side facing the contact board, and a rotor whose upper end protrudes from the outer case is formed. 4. A thin elastic portion on the outer periphery of the rotor is snap-engaged with a plurality of claws on an end face of the opening of the movable body, and a circular projection at the center of the rotor is fitted into a hole at the center of the bottom of the movable body. 4. A rotary type position switch with a push switch according to claim 3, wherein the rotor is rotatably held by a movable body wall. 5. The rotor can be rotated by the movable body wall surface by inserting a circular projection at the center of the rotor having the retainer piece into a hole of the same shape as the above-mentioned stopper piece at the center of the movable body wall surface and twisting it by a predetermined angle. The rotary type position switch with a push switch according to claim 3, wherein 6. A moderation pin provided in the second outer case has a tip of a spherical rod shape, and a moderation unevenness portion of the rotor corresponding to the moderation pin is formed into a circumferential direction unevenness portion corresponding to the movement of the rotor in the rotation direction. In addition, in accordance with the downward movement of the movable body, a step is provided in the radial direction which is equal to or higher than the circumferential unevenness in the radial direction. Rotary type position switch with push switch described in 1.