JP2875500B2 - Rotary electronic components - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a variable resistor,
The present invention relates to a rotary electronic component having a click mechanism in a rotary part such as an encoder.

[0002]

2. Description of the Related Art Conventionally, for example, a variable resistor with a rotary mechanism having a click mechanism has a variable resistor 1 and a rotary switch 2 provided with a rotary plate 3 interposed therebetween, as shown in FIG. 3, a mechanical part 2a of the rotary switch 2 is arranged, a slider 4 is attached to the front side, and a substrate 5 on which a resistor is formed is attached to face the slider 4; These are provided in a predetermined case 6. Further, a click rotary plate 7 is provided separately and coaxially with the rotary plate 3, and is housed in a click case 8. The reason why the click rotating plate 7 is provided separately in the click case 8 is that the click rotating plate 7 is always urged in one direction by the click spring 9. This is to prevent the click rotary plate 7 from tilting.

Further, as disclosed in Japanese Utility Model Publication No. 57-50723, a click groove is provided on a side surface of a rotary plate to which a slider is attached, and this side surface is urged by a click spring. As disclosed in Japanese Patent Application No. 60-94739, a substrate on which a resistor is formed and a rotary plate having a click recess are provided coaxially in contact with each other, and a click recess on the surface of the rotary plate is attached by a click spring. Some have also been suggested to give a sense of click.

[0004]

In the case of the above-described variable resistor with a rotary switch, a click case 8 accommodating a click mechanism is coaxially mounted outside the operating mechanism portion such as the variable resistor. The number of components has increased, and the overall height has increased. This has been an obstacle to miniaturization of electronic devices, in contrast to the recent demand for smaller and lighter electronic components. In particular, the slider 4 and the rotary switch 2 are provided on both sides of the rotary plate 3.
In the case of a rotary electronic component having such components, a large number of components are arranged around the rotation axis, and each component has an operating range set and occupies a certain space. There is a problem that the height is necessarily high.

In the case of Japanese Utility Model Publication No. 57-50723,
Since the side surface of the rotating plate is urged by the click spring, a radial force is always applied to the rotating shaft in one direction, and there is a problem that uneven wear of the bearing portion, inclination of the rotating shaft, and the like are apt to occur.

In the case of Japanese Utility Model Application Laid-Open No. 60-94739, the click plate and the substrate are rotated.
Although it has a structure in which only a variable resistor is provided, a rotating plate for clicking is provided separately, and the number of components is large, and the thickness in the axial direction is large, which is against the downsizing of electronic components. .

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and provides a rotary electronic component having a simple structure, a small number of components, a small size, and a low axial height. With the goal.

[0008]

SUMMARY OF THE INVENTION The present invention has a rotating plate fixed to a rotating shaft and an electronic member interlocked with the rotation of the rotating plate, and has a click mechanism for generating a click feeling during rotation. A concave portion is formed on a surface of the outer peripheral edge of the rotating plate perpendicular to the rotation axis, and the concave portion and a surface of the outer peripheral edge of the rotating plate perpendicular to the rotating axis are urged in the rotating axis direction of the rotating plate. A biasing member is provided, and further, a contact portion of the biasing member is formed on a holding arm extending in a tangential direction of the concave portion of the rotating plate, and the rotating plate is sandwiched on the opposite side of the biasing member, A rotary electronic component provided with a support member that abuts against the rotating plate against the biasing force of the biasing member.

In the rotary electronic component according to the present invention, the rotating plate that gives a click feeling is urged in the direction of the rotation axis by the urging member, and the rotating plate is in contact with the support member. No moment is applied, and no inclination of the rotating shaft is generated, so that a good click feeling can be obtained.
In addition, the abutting portion in contact with the concave portion is provided on the elongated holding arm, and the holding arm extends in the tangential direction of the rotating plate, so that it does not take up space, and has a high elastic force and a wide elastic deformation width.
A good click feeling can be obtained. Further, in the rotary electronic component of the present invention, a case for mounting the biasing member can be integrally molded.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 10 without FIG. 1 shows a rotary electronic component according to the first embodiment of the present invention. FIG. 1 is a schematic longitudinal sectional view of the rotary electronic component. Things. The variable resistor with the rotary switch is a small-diameter portion 1 of the rotary shaft 10.
0 a is inserted into the bearing member 12, and the retaining member 14 is fitted into the rotating shaft 10. Below the bearing member 12, a resistor (not shown) is formed concentrically, and a substrate 18 through which the rotary shaft 10 is inserted is inserted into a central through hole 16. A terminal 19 is attached to the substrate 18, and a slider 20 in contact with the resistor is attached to a rotating plate 22 fixed to the rotating shaft 10. The rotating plate 22 has the rotating shaft 10 inserted through the shaft holding portion 24 thereof,
The tip of the shaft holding portion 24 fits into the through hole 16 of the substrate 18, and the lower end is the bottom substrate 2 to which the terminal 26 is attached.
8 are fitted in the through holes 30. A known switch member 32, which is switched by the rotation of the rotary plate 22 and is urged by a spring 33, is provided on the back surface side of the rotary plate 22. Here, the slider 20 and the switch member 32 provided on both sides of the rotary plate 22 may be replaced with other electronic members.

On the peripheral edge of a surface of the rotating plate 22 perpendicular to the rotation axis, a triangular wave-shaped uneven portion 34 is provided as shown in FIGS. An urging member 42 attached to the case 40 comes into contact with the uneven portion 34, and the urging member 42 urges the rotating plate 22 in the axial direction of the rotating shaft 10 and in the direction of the substrate 18. I have. On the surface of the rotating plate 22, a projection 36 for attaching the slider 20 is formed.
A stopper piece 37 for regulating the rotation angle is provided on the side surface. Further, an engagement projection 38 which engages with the switch member 32 to open and close the switch member 32 is provided on the back surface side.

Further, an urging member 42 is provided with the rotating plate 22 interposed therebetween.
On the opposite side, the urging member 4 is
A support member 44 supporting the rotary plate 22 against the urging force of No. 2 is provided integrally with the case 40. Urging member 4
As shown in FIGS. 4 to 6, reference numeral 2 denotes an abutting portion which is made of an elastic metal plate and engages with the concave / convex portion 34, a holding arm 48 formed at a central portion thereof, and is attached to the case 40. It consists of a mounting part 50. The mounting portion 50 has a pair of through holes 52 for positioning at the time of mounting.

The case 40 forms only the side wall of the variable resistor with a rotary switch. As shown in FIGS. 7 to 10, a notch 54 for mounting the urging member 42 is provided. It is provided on the side wall. The notch 54 is provided with a pair of holding portions 60 and 62 for holding the urging member 42 in the axial direction in order to allow the case 40 to be integrally formed and to hold the urging member 42. It is provided on both sides of the cutout portion 54 in a positional relationship that does not matter. In this positional relationship, the holding portion 60 is provided inside and the holding portion 62 is provided outside to hold the urging member 42. Further, a support member 44 which comes into contact with the peripheral edge of the rotary plate 22 is provided integrally with the portion where the notch 54 is formed. Further, a convex portion 64 that fits into the through hole 52 of the biasing member 42 is provided on an end surface of the holding portion 62.
The urging member 4 is provided inside the holding portion 60.
A guide slope 66 for obliquely inserting the urging member 42 is provided so that the convex portion 64 is not scraped off when the case 2 is inserted into the case 40. The case 40, the bearing member 12, and the bottom substrate 28 form the case body 80 of the variable resistor with the rotary switch.

The rotary electronic component of this embodiment has a rotary shaft 1
With the rotation of 0, the resistance value of the terminal 19 connected to the slider 20 changes, and the switch member 32 is also switched. The ON / OFF signal is output from the terminal 26. Then, as the rotating shaft 10 rotates, the contact portion 46 of the urging member 42 rotates while climbing over the surface of the concave and convex portion 34, so that a click feeling is generated at the time of rotation.

According to the rotary electronic component of this embodiment, the slider 20 and the switch member 32 are provided on both sides of the rotary plate 22, and there is no space around the rotary shaft 10 for disposing the click mechanism. Regardless, an uneven portion 34 is formed on the peripheral portion of the rotary plate 22 to which the slider 20 is attached, and also serves as a rotary plate for clicking, thereby reducing the height of the component.

In addition, the urging member 42 for giving a click feeling urges the rotating plate 22 in the axial direction of the rotation shaft, and the rotating plate 22 is supported against the urging member 42 by the supporting member 44. In addition to being able to reduce the size, it is not necessary to provide a support for the urging force by providing a dedicated rotating plate for click, and no biased force or moment acts on the rotating plate 22. Good click feeling can be obtained by use. Further, the urging member 42 is connected to the rotating plate 2.
Since it is attached to the side wall of the case 40 on the side of 2, the urging members 42 do not overlap in the axial direction, and the thickness of the urging members 42 can be reduced. In addition, since the urging member 42 is made laterally long and the holding arm 48 is long, the stroke of the elastic deformation is long, the elastic force can be increased, and a good urging force can be obtained.

The case 40 is formed by forming a pair of holding portions 60 and 62 which are opposed to each other so as to be shifted from each other, and the whole can be formed by integral molding, so that the number of parts and the manufacturing cost can be reduced.

Next, a second embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIG. Here, the same members as those in the above-described embodiment are denoted by the same reference numerals, and description thereof will be omitted.

This embodiment relates to a variable resistor with a push switch.
The contact is closed by pressing. Further, the case is divided into an upper case 41 provided with a support member 44 of the rotating body 22 and a lower case 43 containing the switch unit.
The mounting portion 50 of the urging member 42 is sandwiched and fixed between the upper and lower cases 41 and 43.

Above the switch member 70, a receiving portion 72 on which the lower end of the rotating shaft 10 is mounted is mounted on the lower case 4.
3 is provided on the holding arm 74 extending from the third arm. The holding arm 74 has a cantilever structure integrally projecting from the frame of the case 43, and has a U-shaped large arm 74 a and a small arm further projecting inward from the U-shaped end of the large arm 74 a. And a portion 74b. As a result, even if the stroke of pushing the rotating shaft 10 is long, the receiving portion 72 does not tilt and lowers without any displacement.

In this embodiment, a good click feeling can be obtained with a small component as in the above-described embodiment.

The shape of the urging member of the present invention is not limited to the above embodiment. As shown in FIG. 14, the arm 49 is made longer so that the spring property of the urging member 42 is further improved. May be.

Further, the rotary electric component of the present invention can be used for all rotary electronic components such as a rotary encoder, a rotary switch, a variable resistor, etc., in addition to the above embodiment. In each component, the rotating body may not have a stopper piece, and various types of switch members may be applied. Furthermore, a large number of rotary electronic components may be stacked coaxially or connected in multiple axes.

The method of fixing the urging member to the case is not limited to the above embodiment. The urging member may be attached to the case by insert molding, thereby further reducing manufacturing costs and man-hours. Can be reduced. In addition, the concave portion formed in the rotating plate is not limited to the one formed by the continuation of the mountain-shaped concave and convex portions, as long as the concave portions are formed at regular intervals.
The surface may be on either side of the rotating plate, and may be formed on a part or the entire periphery of the peripheral portion.

[0025]

According to the rotary electronic component of the present invention, the rotary plate for generating a click feeling is also used as the rotary plate on which the electronic member such as the slider is attached, and the electronic member such as the slider is avoided. Since the click mechanism is arranged on the peripheral edge of the rotating plate, the height of the whole component can be reduced even if electronic members such as sliders are provided on both sides of the rotating plate.

Further, the urging member for giving a click feeling urges the rotating plate in the axial direction of the rotating shaft.
Since the rotating plate is in contact with the supporting member against the urging member, the shape can be reduced in size, and even if a rotating plate for click is not provided, biased force and moment do not act on the rotating plate,
Good clicks can be obtained even after long-term use. Furthermore, the urging member is also provided on the side of the rotating plate, and even if the rotating plate is thin, the rotating plate can be made thin without the warping plate being warped by the urging force of the urging member. Therefore, the axial height can be reduced accordingly. Further, the contact portion of the urging member is provided on the holding arm having a long stroke, and the clicking feeling is good.

In addition, since the holding portion of the urging member is formed so as to be shifted inward and outward, an integral form of the case becomes possible.
The number of parts can be reduced, and the number of manufacturing steps and cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a schematic longitudinal sectional view of a first embodiment of a rotary electronic component according to the present invention.

FIG. 2 is a partially broken side view of the rotating plate of the embodiment.

FIG. 3 is a front view of the rotating plate.

FIG. 4 is a plan view of an urging member of the embodiment.

FIG. 5 is a front view of the urging member.

FIG. 6 is a right side view of the urging member.

FIG. 7 is a front view of a case of the rotary electronic component of the embodiment.

FIG. 8 is a sectional view taken along line AA of FIG. 7;

FIG. 9 is a sectional view taken along line BB of FIG. 7;

FIG. 10 is a perspective view of a case of this embodiment.

FIG. 11 is a longitudinal sectional view of a second embodiment of the present invention.

FIG. 12 is a front view of a lower case of the second embodiment.

FIG. 13 is a sectional view taken along the line CC in FIG. 12;

FIG. 14 is a front view of another embodiment of the biasing member of the present invention.

FIG. 15 is a longitudinal sectional view of a conventional variable resistor with a rotary switch.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Rotating shaft 18 Substrate 20 Slider 22 Rotating plate 32 Switch member 34 Uneven part 42 Urging member 44 Supporting member 48 Holding arm 60, 62 Clamping part 80 Case body

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H01C 10/00 H01H 19/20 H05G 5/03

Claims (2)

(57) [Claims] 1. An insulating substrate, a conductor pattern formed on a surface of the insulating substrate, a case body to which the insulating substrate is attached, a rotating shaft supported by the case body, A rotating plate that is attached and rotates within the case body; a slider that is attached to one side of the rotating plate and slides on the conductor pattern in conjunction with the rotation of the rotating plate; In the rotary electronic component having an electronic member provided on the side and a click mechanism for generating a click feeling when the rotary plate rotates, an axis provided integrally with the rotary plate and through which a rotary shaft of the rotary plate is inserted. A holding portion, a concave portion formed on a surface of the outer peripheral edge of the rotating plate orthogonal to the rotation axis, and the slide body are provided separately from the case body on the side of the concave portion of the rotating plate. Attached to the recess and abutting on the recess and rotating A biasing member for biasing the plate surface in the direction of the rotation axis of the rotary plate; and a contact portion formed on the biasing member with the concave portion, and the rotary plate being tangential to a rotation locus of the rotary plate. A holding arm extending in parallel with the rotating plate, and provided integrally with the case body on the opposite side of the urging member with the rotating plate therebetween, and abutting against the rotating plate against the urging force of the urging member. A rotating electronic component comprising: a supporting member; 2. A rotary electronic component, comprising: a rotary plate fixed to a rotary shaft; and an electronic member interlocked with the rotation of the rotary plate, the rotary electronic component having a click mechanism for generating a click feeling at the time of rotation. A concave portion is provided on a surface of the outer peripheral edge of the plate orthogonal to the rotation axis, and the concave portion is attached to the case body on the side of the concave portion of the rotary plate and abuts on the concave portion to rotate the concave portion and the rotary plate surface of the rotary plate An urging member for urging in the axial direction;
A holding arm formed on the urging member and having a contact portion with the concave portion and extending in a direction tangential to a rotation locus of the rotating plate in parallel with the rotating plate; A rotary electronic component, further comprising a support member provided on the opposite side of the biasing member and in contact with the rotating plate against the biasing force of the biasing member.