JP2000348567A - Rotary electrical part - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rotary electrical part, having a clicking mechanism capable of generating various sorts of clicking sense and/or torque by changing in each sort of component the combination of ball held by a holding member, coil spring, etc., without changing the case, housing body, and cam seats provided in a rotor. SOLUTION: This rotary electrical part is equipped with a rotor 3 installed rotatably, cam seats 3b and 3c provided in the rotor 3 and having surface unevenness, clicking members 7 and 8 to be put in slide contact with the cam seats 3b and 3c, and a holding member 6 to hold the clicking members 7 and 8, where the holding member 6 is furnished with a plurality of holding parts 6a for holding the clicking members 7 and 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the structure of rotary electric parts such as a rotary switch, a rotary encoder, and a rotary volume, and more particularly to a rotary type having a click mechanism for generating a click feeling and a rotation torque during rotation. It relates to the structure of electrical components.

[0002]

2. Description of the Related Art As a structure of a rotary electric component having a conventional click mechanism, a rotary body having an operation shaft is provided inside a case such as a switch, an encoder, a volume, or a housing body. A cam groove having an uneven portion in the circumferential direction is formed, and a click member such as a ball and a coil spring or a leaf spring is incorporated so as to be in sliding contact with the cam groove. With the rotation of the operation shaft, the cam groove slides on the click member, so that a click feeling and a rotation torque are generated during rotation.

In this case, the cam groove forming the click mechanism is formed integrally with a rotating body having an operation shaft, and the click member, such as a ball and a coil spring or a leaf spring, is formed. Are also accommodated and held in a holding member for the click member, which is formed integrally with the case and the housing body.

Therefore, click mechanisms such as switches, encoders, and potentiometers, which are conventional rotary electric parts,
The switch, the encoder, the volume, etc., have been integrally incorporated into the case or the housing body.

[0005]

However, in the above-described configuration of the click mechanism of the conventional rotary electric component, the cam groove forming the click mechanism is formed integrally with the rotating body. Also, since the click members such as a ball, a coil spring, and a leaf spring are also held by a holding member formed integrally with the case or the housing body, various click feelings can be provided according to needs. In order to obtain a rotational torque, it is necessary to change the concave and convex portions of the cam groove of the rotary plate and to change the click member. There was a problem that a new groundwork had to be started.

Further, when the click mechanism is changed, the case and the housing main body must be changed accordingly, resulting in a problem that the number of types of parts increases and the cost increases.

Therefore, the present invention solves the above-mentioned problems, and allows a single type of component such as a ball or a coil spring to be held by a holding member without changing the cam groove of a case, a housing body, and a rotating body. It is an object of the present invention to provide a structure of a rotary electric component having a click mechanism capable of obtaining various click feelings and rotational torques by changing a combination of the above.

[0008]

According to the present invention, as a first means for solving the above-mentioned problems, a rotating member rotatably disposed and a cam groove having an uneven portion provided on the rotating member are provided. And a click member slidably in contact with the cam groove, and a holding member for holding the click member, wherein the holding member is formed with a plurality of holding portions for holding the click member. .

[0009] As a second means, the plurality of holding portions are formed in shapes having different sizes so that the size of the click member and the biasing load can be selected.

[0010] As a third means, a plurality of the holding portions are formed with different distances in a radial direction of the rotating body.

As a fourth means, the click member is constituted by a ball and a coil spring.

Further, as a fifth means, the rotating body includes:
The case and a cover that covers an opening of the case are rotatably disposed, and the holding member is attached outside the cover.

[0013] As a sixth means, the rotating body comprises:
The case and a cover that covers an opening of the case are rotatably disposed, and the holding member is attached inside the cover.

Further, as a seventh means, the holding member is provided with an insertion hole through which the operating shaft of the rotating body is inserted at a central portion thereof, and at a radially cross-shaped position across the insertion hole. A plurality of the holding portions are formed.

Further, as an eighth means, the plurality of holding portions are provided with a pair of holding portions provided at positions close to each other across the insertion hole, and at a position far from the insertion hole. And a pair of other holding portions provided in such a manner.

According to a ninth means, the ball and the coil spring are selectively held at one or a plurality of positions of the plurality of holding portions.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 to 4 show the structure of a rotary electric component according to a first embodiment of the present invention. FIG. 1 is a plan view showing a rotary switch which is a rotary electric component of the present invention.
3 is a longitudinal sectional view, FIG. 3 is a partially cutaway plan view showing a cam groove of the rotating body, and FIG. 4 is a longitudinal sectional view of FIG.

In the figure, a case 1 is made of an insulating material such as a synthetic resin and has a box shape with an open upper surface. A slider 2 made of a metal material having a spring property such as phosphor bronze or stainless steel is integrally formed at the bottom of the case 1 by insert molding or the like. A contact portion 2a is provided at the other end, and a connection terminal 2b is provided at the other end.
The connection terminal 2b extends outside the case 1.

The rotating body 3 is formed of an insulating material such as a synthetic resin, and has a cylindrical operating shaft 3a projecting outward from an opening of the case 1 at the center thereof. The operation shaft 3a is formed so as to be compatible with either a case of a rod-shaped shaft as shown in FIG. 2 or a case of a cylindrical shaft as shown in FIG. ing. A circuit board 4 made of a laminated plate of an insulating material such as phenolic resin is fixed to the lower end of the rotating body 3, and the circuit board 4 is brought into sliding contact with the slider 2 to switch the circuit. A plurality of circuit patterns (not shown) are formed.

On the upper surface of the rotating body 3, two annular cam grooves 3b and 3c are formed at different distances in the radial direction about the operation shaft 3a. This 2
The three cam grooves 3b and 3c are formed with uneven click cams 3d and 3e, respectively.
Each of d and 3e is composed of different types of uneven portions.

An annular sliding member is provided on the peripheral surface of the rotating body 3 so as to be positioned and slidably contacted with the inner bottom surface of the case 1 or an inner surface of a cover described later when the rotating body 3 is rotated. A moving projection 3f is formed.

The cover 5 is made of a plate-like metal material such as stainless steel or a steel plate, and is fixed on the case 1 so as to cover the opening of the case 1. At the center of the cover 5, an opening 5a through which the operation shaft 3a of the rotating body 3 passes is provided.

The holding member 6 for the click member is formed of an insulating material such as a synthetic resin, and a plurality of holding members 6a for the click members are provided at the center and side ends thereof. And a ball 7 and a coil spring 8 serving as click members. The holding member 6 shown in FIG. 1 is provided with an insertion hole 6b in the center thereof through which the operation shaft 3a of the rotating body 3 is inserted. A plurality of the holding portions 6a are formed at the position of the shape. Further, a plurality of the holding portions 6a
And a pair of holding portions 6aa and 6ab provided opposite to each other at a relatively close position with the insertion hole 6b interposed therebetween, and provided at a position distant from the insertion hole 6b with the holding portions 6aa and 6ab interposed therebetween. The other pair of holding portions 6ac and 6ad are formed, and the plurality of pair of holding portions 6aa and 6ab and the other pair of holding portions 6ac and 6ad are different in distance in the radial direction of the rotating body. It has been formed. Also,
The plurality of holding portions 6a and the pair of holding portions 6aa and 6ab and the other pair of holding portions are provided so that the size of the ball 7 and the coil spring 8 as the click members and the biasing load can be selected and stored. The parts 6ac and 6ad are 6aa and 6ab,
And 6ac and 6ad are formed with storage holes of different sizes. The holding member 6 is attached to the upper surface of the cover 5 by a method such as snapping or caulking.

The holding member 6 shown in FIG. 3 does not have an insertion hole through which the operating shaft 3a of the rotating body 3 is inserted at the center, and is provided on any one side of the rotating shaft 3a. It is something that has become. Also in this case, a plurality (two) of the holding portions 6 are formed in the holding member 6, and the balls 7 and the coil springs 8 are respectively provided in the holding portions 6.
Is stored. In the present embodiment, the holding unit 6
Although two are provided, four may be provided in parallel. Although two cam grooves 3b and 3c each having an annular shape are formed in the cam grooves shown in FIG. 3, four cam grooves can also be provided concentrically side by side.

Next, when assembling the above-described rotary switch of the present invention, first, a circuit pattern (not shown) of the circuit board 4 is opposed to the contact portion 2a of the slider 2 provided in the case 1. Then, the rotating body 3 to which the circuit board 4 is fixed is incorporated. Next, the rotating body 3
The cover 5 is attached to the case 1 so as to cover the opening of the case 1 while the operating shaft 3a is protruded from the opening 5a of the cover 5. Next, the ball 7 and the coil spring 8 are selectively stored in the plurality of holding portions 6 a of the holding member 6 as necessary, and
Is attached to the upper surface of the cover 5 by a method such as snapping or caulking, thereby completing the assembly.

In this case, the ball 7 and the coil spring 8 are selectively housed in one or a plurality of places of the plurality of holding portions 6a as necessary according to needs. A desired click feeling and rotational torque can be obtained. That is, since the plurality of holding portions 6a are formed with different distances in the radial direction of the rotating body 3, the balls 7 stored in the holding portions 6a having different distances are provided.
By selecting the position of the coil spring 8 and the position of the rotating body 3
2 formed of different types of uneven portions formed in
Since either one of the three cam grooves 3b and 3c can be selected, different click feelings and rotational torques can be obtained.

The plurality of holding portions 6a are provided so that the size of the ball 7 and the coil spring 8 as the click members and the biasing load can be selected and stored.
Of the two cam grooves 3b and 3c, the pair of holding portions 6aa and 6ab (or the other pair of holding portions 6ac and 6ad) provided at positions sliding on the same cam groove are stored in different sizes. The two cam grooves 3b are formed by selecting the size corresponding to the storage hole, the ball 7 and the coil spring 8 of the urging load.
3c, different click feelings and rotational torques can be obtained even when sliding on the same one cam groove.

The ball 7 and the coil spring 8 serving as the click members may be housed in the holding portion 6a so as to be in sliding contact with the two cam grooves 3b and 3c at the same time. Of the two cam grooves 3b and 3c, the pair of holding portions 6aa and 6ab (or the other pair of holding portions 6ac,
6ad). Also in this case, different click feelings and different rotation torques can be obtained.

In the above embodiment, the cam grooves 3b,
A holding member 6 for holding the ball 7 and the coil spring 8 slidably in contact with 3c is formed separately from the case 1 and the cover 5, and holds the ball 7 and the coil spring 8 on the holding member 6. Since the plurality of holding portions 6a are formed with different sizes and distances, the ball 7 and / or the like may be provided at one or a plurality of positions of the plurality of holding portions 6a according to needs. The holding member 6 can be configured by selectively storing the coil spring 8 and the holding member 6 can be externally attached to the cover 5, so that the case 1, the housing body, and One type of component can be used without changing the cam grooves 3b and 3c of the rotating body 3 according to needs each time, and the ball 7 and the coil spring 8 held by the holding member 6 can be used. Combination of By changing the obtained various click feeling or torque.

FIGS. 5 and 6 show the structure of a rotary electric component according to a second embodiment of the present invention. FIG. 5 is a plan view showing a rotary switch which is a rotary electric component of the present invention.
Is a longitudinal sectional view of the same. Note that the same components as those described with reference to FIGS. 1 to 4 are denoted by the same reference numerals and description thereof will be omitted.

In this case, the difference from the first embodiment is that the configuration of the cam groove formed in the rotating body is different. That is, in the configuration of the rotary switch according to the second embodiment of the present invention, a cam groove is formed in the axial direction of the rotating body.

The rotating body 13 is formed of an insulating material such as a synthetic resin, and has a circular operating shaft 13a projecting outward from an opening of the case 1 at the center thereof. In the vicinity of the root of the operation shaft 13a, an annular cam groove 13b having an uneven click cam 13d is formed on the shaft peripheral surface in the axis direction.

An annular surface of the rotating body 13 is positioned and slidably contacted with the inner bottom surface of the case 1 and the inner surface of the cover 5 when the rotating body 13 is similarly rotated. A sliding protrusion 13f is formed.

The holding member 16 of the click member is formed of an insulating material such as a synthetic resin, and has an insertion hole 16b at the center thereof through which the operation shaft 13a of the rotating body 13 is inserted. The rotating body 13 is sandwiched between the insertion holes 16b.
A plurality of click member holding portions 16a are provided at radially cross positions, and the click members such as the ball 7 and the coil spring 8 are housed in the holding portions 16a. Further, the plurality of holding portions 16a are formed of storage holes having different sizes so that the size and the biasing load of the ball 7 and the coil spring 8 as the click members can be selected and stored. .

In the case of the above embodiment, a pair of the holding portions opposing each other are formed as storage holes having different sizes, and two pairs of the holding holes are provided at a cross-shaped position. 16a may all be formed in the same size, or may be formed in different sizes. Also in this case, different click feelings and rotational torques can be obtained by selectively storing the ball 7 and the coil spring 8 as the click members.

In the above embodiment, only one cam groove 13b is formed on the peripheral surface of the operating shaft 13a, but two cam grooves 13b are formed vertically (not shown). Is also good. In this case, the holding portion 16a of the click member provided on the holding member 16 may be formed so as to be arranged in two stages corresponding to the cam grooves. Further, the cam groove 13b may be provided on the peripheral surface of the main body of the rotating body 13 (not shown), not on the peripheral surface of the operation shaft 13a.

Also in the second embodiment of the present invention, the holding member 16 for holding the ball 7 and the coil spring 8 slidably contacting the cam groove 13b is provided separately from the case 1 and the cover 5. Since a plurality of holding portions 16a for holding the ball 7 and the coil spring 8 are formed on the holding member 16, one of the plurality of holding portions 16a, or The holding member 16 can be formed by selectively storing the ball 7 and the coil spring 8 at a plurality of positions as necessary, and the holding member 16 is attached to the cover 5 by being externally attached. Therefore, the case 1, the housing body, and the cam groove 13b of the rotating body 13 can be dealt with by one kind of component without changing each time according to needs. By changing the combination of such a ball 7 and a coil spring 8 which is held in, and those different click feeling and rotation torque can be obtained.

7 and 8 show the structure of a rotary electric component according to a third embodiment of the present invention. FIG. 7 is a plan view showing a rotary switch which is a rotary electric component of the present invention.
Is a longitudinal sectional view of the same.

In this case, the difference from the first embodiment is that the structure for attaching the holding member of the click member is different. That is, in the configuration of the rotary switch according to the third embodiment of the present invention, the holding member is attached not inside the cover but inside. In the case of the present embodiment, the holding member 26 is attached to the inside of the opening of the case 1 while being held between the upper surface of the rotating body 3 and the lower surface of the cover 5.

Also in the third embodiment of the present invention, the holding member 26 is formed separately from the case 1 and the cover 5, and the ball 7 and the coil spring 8 are mounted on the holding member 26. Since a plurality of holding portions 26a for holding are formed, the case 1, the housing main body, the cam grooves 3b and 3c of the rotating body are held by the holding member 26 without changing each time according to needs. Various click feelings and rotational torques can be obtained by selecting the combination of the ball 7 and the coil spring 8 to be performed.

[0041]

As described above, according to the rotary electric component of the present invention, the click member is held by the holding member that holds the click member slidably contacting the cam groove having the concave and convex portions provided on the rotating body. Since a plurality of holding portions are formed, the combination of a ball, a coil spring, and the like held by the holding member can be changed in one type of component without changing the case, the housing main body, and the cam groove of the rotating body. Thereby, various click feelings and rotational torques can be obtained.

Further, since the plurality of holding portions are formed in shapes having different sizes so that the size of the click member and the urging load can be selected, it is easy to change the combination of the ball and the coil spring. Become.

Further, since the plurality of holding portions are formed at different distances in the radial direction of the rotating body, the holding portion corresponding to the cam groove of the rotating body can be easily selected.

Further, since the click member is composed of a ball and a coil spring, it is possible to use existing components, and it is possible to reduce the cost by eliminating the investment of a mold.

The rotating body is rotatably provided by a case and a cover for covering the opening of the case. Since the holding member is mounted outside the cover, the mounting of the holding member is prevented. Or replacement can be performed easily, and assemblability is improved.

The rotating body is rotatably provided by a case and a cover for covering the opening of the case. Since the holding member is mounted inside the cover, the holding member is rotatable. Since it is arranged in close contact with the cam groove of the body, stable click feeling and rotational torque can be obtained.

The holding member is provided with an insertion hole at the center thereof through which the operating shaft of the rotating body is inserted, and a plurality of holding portions are formed at positions radially crosswise across the insertion hole. Therefore, the positioning can be reliably performed only by inserting the holding member into the operation shaft, and a reliable click feeling and rotational torque can be obtained.

Further, the plurality of holding portions are provided with a pair of holding portions opposed to each other at a position near the insertion hole and another pair of holding portions provided at a position far from the insertion hole. With the configuration, the position of the holding portion that houses the ball and the coil spring can be easily specified, and thus a desired click feeling and rotational torque can be easily selected.

Further, since the ball and the coil spring are selectively held at one or more of the plurality of holding portions, various click feelings and rotational torques can be obtained.

[Brief description of the drawings]

FIG. 1 is a plan view showing a rotary electric component according to a first embodiment of the present invention.

FIG. 2 is a longitudinal sectional view showing the rotary electric component of the present invention.

FIG. 3 is a partially broken plan view showing a cam groove of the rotating body according to the first embodiment of the present invention.

FIG. 4 is a longitudinal sectional view of FIG. 3 of the present invention.

FIG. 5 is a plan view showing a rotary electric component according to a second embodiment of the present invention.

FIG. 6 is a longitudinal sectional view showing the same rotary electric component of the present invention.

FIG. 7 is a plan view showing a rotary electric component according to a third embodiment of the present invention.

FIG. 8 is a longitudinal sectional view showing the rotary electric component of the present invention.

[Description of Signs] 1 Case 2 Slider 2a Contact portion 2b Connection terminal 3, 13 Rotating body 3a, 13a Operating shaft 3b, 3c, 13b Cam groove 3d, 3e, 13d Cam for click 3f, 13f Sliding protrusion 4 Circuit Substrate 5 Cover 5a Opening 6, 16, 26 Holding member 6a, 16a, 26a Holding portion 6aa, 6ab One pair of holding portions 6ac, 6ad Another pair of holding portions 6b, 16b Insertion hole 7 Ball (click member) 8 Coil spring (Click member)

Claims (9)

[Claims] 1. A rotating body rotatably disposed, a cam groove having an uneven portion provided on the rotating body, a click member slidably contacting the cam groove, and holding the click member. A rotary electric component, comprising: a holding member, wherein the holding member is formed with a plurality of holding portions for holding the click member. 2. The rotary mold according to claim 1, wherein the plurality of holding portions are formed in shapes having different sizes so that a size of the click member and an urging load can be selected. Electrical component. 3. The rotary electric component according to claim 1, wherein the plurality of holding portions are formed with different distances in a radial direction of the rotating body. 4. The rotary electric component according to claim 1, wherein said click member comprises a ball and a coil spring. 5. The rotator is rotatably disposed by a case and a cover that covers an opening of the case, and the holding member is attached outside the cover. Claims 1, 2, 3, and 4
The described rotary electrical component. 6. The rotator is rotatably disposed by a case and a cover that covers an opening of the case, and the holding member is mounted inside the cover. Claims 1, 2, 3, and 4
The described rotary electrical component. 7. The holding member is provided at its center with an insertion hole through which the operating shaft of the rotating body is inserted, and a plurality of the holding portions are provided at a position cross-shaped in the radial direction with the insertion hole interposed therebetween. 7. The rotary electrical component according to claim 1, wherein the rotary electrical component is formed. 8. A plurality of the holding portions, a pair of holding portions provided opposed to each other at a position close to the insertion hole and another holding portion provided at a position far away to the insertion hole. The rotary electric component according to claim 7, comprising a pair of holding portions. 9. The rotary electric component according to claim 8, wherein the ball and the coil spring are selectively held at one or a plurality of positions of the plurality of holding portions.