JPH11121210A - Rotary electric part having pushing switch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a stabilized clciking sense by providing the constitution, wherein a rubber member and a coupling member are bonded by the concave and convex pattern. SOLUTION: When an operating shaft 7 is rotated in a rotary electric part with a pushing switch, a movable contact point 3 is connected to and separated from a fixed contact point 4 by the rotation of a rotary body 2, and a rotary electric part D is operated. Furthermore, when the operating shaft 7 is pushed and moved to the direction of the shaft, the operating shaft 7 moves a coupling member 15 to the axial direction. At the same time, the coupling member 15 pushes the flat surface of a rubber member 13 at the flat surfaces of a convex part 15d and an extending part 15c. Then, the rubber member 13 is pushed, deformed and inverted. A movable contact point 12 is brought into contact with the fixed contact point 11 by the clicking action of the rubber member 13, and ON-state is provided. When the pushing of the operating shaft 7 is released from this state, the coupling member 15 and the operating shaft 7 are pushed back by the rubber member 13. The movement of a collar part 7b of the operating shaft 7 is stopped by the collar part 1d. When an extending part 15c of the coupling member 15 is held at a containing part 4b of an attaching base body 4, the movable contact point 12 becomes OFF-state.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary electric component such as a pulse switch or a variable resistor provided with a push switch for turning ON / OFF a contact by an axial movement of an operating shaft. The present invention relates to a rotary electric component with a push switch for operating the electronic component.

[0002]

2. Description of the Related Art As shown in FIG. 4, in a conventional rotary electric component with a push switch, a bearing 31 includes a housing 31a, a through hole 31b, and a part of the through hole 31b at an end. It has a flange 31c provided so as to close it. Further, a hole 32 is provided at the center in the storage portion 31a of the bearing 31.
a rotatable magnetic drum 32 having a
A plurality of Hall ICs 33 fixed at a position facing 2
And the magnetic drum 32 and the Hall IC 33 constitute a rotary electric component D which is a rotary encoder.

The magnetic drum 32 has an uneven portion 32b.
Is provided, and a spring 34 fixed in the storage portion 31a can be engaged with and disengaged from the uneven portion 32b, so that a click operation can be performed when the magnetic drum 32 rotates. In addition, the operating shaft 35 has a circular portion 3 having a groove 35a.
5b, a non-circular portion 35c connected to the circular portion 35b, and a protrusion 35d connected to the non-circular portion 35c.
Reference numeral 5 denotes a state where the through-hole 31b of the bearing 31 and the hole 32a of the magnetic drum 32 are inserted, the circular portion 35b is located at the flange 31c, and the non-circular portion 35c is located at the hole 32a. A metal washer 36 is attached to the groove 35a of the operation shaft 35, and the operation shaft 35 is prevented from coming off so that the washer 36 contacts the inner surface of the flange portion 31c. In addition, the operation shaft 35 attached in this manner is capable of rotating and moving in the axial direction.
When the operation shaft 35 is rotated, the circular portion 35b is rotated by using the flange 31c as a guide, and the magnetic drum 32 is rotated by the non-circular portion 35c. When the operation shaft 35 is moved in the axial direction, the flange 31c It slides between the holes 32a and moves.

An insulating base 37 made of a synthetic resin molded product is disposed so as to cover the open portion of the housing 31a of the bearing 31, and a push switch P is mounted in a recess 37a of the insulating base 37. Have been. The push switch P includes a fixed contact 39 embedded in the case 38, a movable contact 40 disposed in the case 38,
A dome-shaped rubber member 41 is provided in the case 38 and covers the movable contact 40, and a plate 42 is provided so as to cover an open portion of the case 38. When the push switch P is attached to the rear of the rotary electric component D, the top of the rubber member 41 is in contact with the protrusion 35d of the operation shaft 35, and the operation shaft 3
5 is pressed forward.

In such a rotary electric component with a push switch, the knob 43 attached to the operation shaft 35 is used.
Is rotated by the operation shaft 35, the magnetic drum 32 rotates while performing a click operation, and the rotation of the magnetic drum 32 causes the Hall IC 33 to generate an output signal, whereby the rotary electric component D is operated. When the knob 43 is pressed and moved in the axial direction, the operation shaft 35 is also moved, and the rubber member 41 is pressed by the protrusion 35d. Then, the rubber member 41 is pushed to be deformed and inverted, and the movable contact 40 is pressed by the click operation of the rubber member 41, and the movable contact 40 comes into contact with the fixed contact 39 to be turned ON. When the pressing force of the knob 43 is released, the rubber member 41 is inverted and returned to its original state by its own spring property, so that the operating shaft 35 is pushed back by the rubber member 41 and the washer 36 is moved to the flange portion 31.
c, and the movable contact 40 returns to its original state due to its own spring property and is turned off. In this manner, the operation of the rotary electric component D and the push switch P is performed.

[0006]

A rotary electric component with a push switch according to the prior art is composed of a rubber member 41 and an operating shaft 3.
5, the rubber member 41 and the protrusion 35 in the axial direction due to variations in attachment and the like.
d cannot be kept constant, so that the protrusion 3
There is a problem that the pressing position of the 5d against the rubber member 41 is not constant, and the click feeling varies. The best click feeling is obtained when the center of the rubber member 41 is pressed on the axis of the operation shaft 35.
There is a problem in that a good click feeling cannot be obtained because the pressing position to 1 is not constant. Also, the protrusion 35
Since the distal end portion d and the rubber member 41 are in contact with each other, sliding occurs between the protrusion 35d and the rubber member 41 when the vibration or the pressing of the protrusion 35d occurs, and the life of the rubber member 41 is short. There's a problem. In addition, when the protrusion 35d is pressed, the tip of the protrusion 35d is displaced from the center of the rubber member 41 due to sliding between the rubber member 41 and the pressed position is changed. . In addition, since the rubber member 41 is pressed by the protrusion 35d, the pressing is performed at one point, so that the deformation of the rubber member 41 is not stabilized, and there is a problem that the click feeling varies.

[0007]

According to a first aspect of the present invention, there is provided a rotary electric component having a rotating body provided with a hole, and a rotary electric component provided at a rear portion of the rotary electric component.
A push switch having a movable contact, a fixed contact, and a bowl-shaped rubber member for operating the movable contact; an operation shaft inserted through the hole of the rotating body; and a connection between the operation shaft and the rubber member. A connecting member interposed between the connecting member and the connecting member for transmitting the movement of the operating shaft to the rubber member, wherein an engaging portion provided at an end of the operating shaft and an engaging portion of the connecting member are fitted and connected. In addition, a concave portion is provided on one of the connecting member and the rubber member, and a convex portion is provided on the other, and the concave and convex portions are coupled to each other, and the rotating body is rotated by the rotating operation of the operating shaft to rotate the rotary electric component. And operating the push switch by moving the rubber member via the connecting member in the axial movement of the operating shaft. As a second solution, an engaging portion between the operating shaft and the connecting member, and a concave portion and a convex portion of the connecting member and the rubber member are provided on the axis of the operating shaft. Further, as a third solving means, the concave portion or the convex portion is provided at a top portion forming a flat surface of the bowl-shaped rubber member, and a facing surface of the connecting member facing the top portion of the rubber member is flattened. A flat surface of the rubber member and a flat surface of the connecting member were abutted to each other so as to be unevenly coupled to each other. Further, as a fourth solution, the connecting member is provided with an overhang having the flat surface, and the overhang can be held by a storage portion provided on the mounting base.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A rotary electric component with a push switch according to the present invention will be described with reference to FIGS. 1 to 3. FIG. 1 is a sectional view of a rotary electric component with a push switch according to the present invention.
FIG. 2 is an exploded perspective view of a main part of a rotary electric component with a push switch of the present invention, and FIG. 3 is an explanatory diagram showing an operation of the rotary electric component with a push switch of the present invention.

As shown in FIGS. 1 to 3, the rotary electric component with a push switch according to the present invention comprises a bearing 1 made of zinc die cast or the like, and a housing 1a and a through hole 1b.
And a flange portion 1d provided at an end of the cylindrical portion 1c so as to cover a part of the through hole 1b. A rotatable rotator 2 having a non-circular hole 2a at the center thereof is disposed in the housing 1a of the bearing 1.
Is a movable contact made of a metal having a concave and convex portion 2b and a cylindrical portion 2c, an insulating member 2e made of a synthetic resin coupled to the holding portion 2d, and a metal plate attached to the insulating member 2e. The cylindrical portion 2c of the rotating body 2 is inserted into the through hole 1b of the bearing 1, and rotates with the bearing 1 as a guide. The mounting base 4 made of a synthetic resin molded product includes:
A fixed contact 5 is buried, and the mounting base 4 is disposed so as to cover an open portion of the storage portion 1 a of the bearing 1 and is mounted on the bearing 1. When the mounting base 4 is attached, the elastic contact (not shown) of the fixed contact 5 contacts and separates from the movable contact 3 to switch the contact. The rotating body 2 having the movable contact 3 and the fixed contact Mounting base 4 having 5
These form a rotary electric component D which is a pulse switch. Note that the rotary electric component D may be an encoder, a variable resistor, or the like.

A spring 6 made of a metal plate is fixed in the accommodating portion 1a of the bearing 1. The spring 6 can be engaged with and disengaged from the uneven portion 2b of the rotating body 2. Sometimes, a click operation can be performed. The operation shaft 7 made of metal or the like includes an operation unit 7a,
A flange portion 7b having a larger diameter than the operation portion 7a;
b and a non-circular portion 7c
And a columnar engaging portion 7d provided at the shaft center portion. The operating shaft 7 is inserted through the through hole 1b of the bearing 1 and the hole 2a of the rotating body 2, the operating portion 7a is inserted into the flange 1d, the flange 7b is inserted into the through hole 1b, and the non-circular portion. 7c is positioned in the hole 2a, the operating shaft 7 rotates in the direction of the support of the operating portion 7a by the flange 1d, and moves in the axial direction.
b can be engaged with the flange 1d of the bearing 1,
To prevent them from falling off. The elastic member 8 formed by bending a metal plate having a spring property is inserted into the operation portion 7a of the operation shaft 7 and disposed between the flange 1d of the bearing 1 and the flange 7b of the operation shaft 7. Has been installed. The elastic member 8 constantly presses the operating shaft 7 backward, prevents the flange 7b from colliding with the flange 1d when the operating shaft 7 is pushed back forward, and 1d
The collision noise is reduced and the collision noise is reduced.

A push switch P is attached to a rear portion of the rotary electric component D by an attachment plate 9. The push switch P has a fixed contact 11 embedded in a case 10 made of a synthetic resin molded product, A movable contact 12 disposed in the case 10 and a bowl-shaped rubber member 13 disposed in the case 10 so as to cover the movable contact 12
And a plate portion 14 for preventing the rubber member 13 from coming off. The rubber member 13 has a bowl-shaped top with a flat surface, and a recess 13a formed at the center thereof, that is, at a position in line with the axis of the operation shaft 7, and a push switch P. Is mounted on the rear part of the rotary electric component D, the rubber member 13 is arranged at a position in line with the engaging portion 7d of the operation shaft 7.

The connecting member 15 made of a synthetic resin molded product or the like has a substantially conical base 15b having an engaging portion 15a formed of a hole, and a projecting portion 15c having a flat surface projecting from one end of the base 15b. And a projection 15d provided at the center of the overhang 15c. The base 15b of the connecting member 15 is inserted into the hole 4a of the mounting base 4 and the hole 2f of the insulating member 2e of the rotating body 2,
The engaging portion 7d of the operation shaft 7 is fitted (fitted and coupled) into the hole serving as the engaging portion 15a, and the projecting portion is fitted with the convex portion 15d fitted into the concave portion 13a of the rubber member 13 (concavo-convex coupling). The flat member 15c is attached by bringing the flat surface of the rubber member 13 into contact with the flat surface of the top of the rubber member 13, and the projecting portion 15c is housed and held in the housing portion 4b formed of the concave portion of the mounting base 4. The connecting member 15 attached in this manner has the engaging portion 15a and the convex portion 15d arranged on the axis S of the operating shaft 7, and the connecting member 15
Is pressed by the rubber member 13, abuts on the mounting base 4 and is held by the storage portion 4 b, and the operation shaft 7 is pressed forward by the connecting member 15. Grease (not shown) is applied to a portion where the metals slide, such as a hole of the flange portion 1d and a contact portion between the cylindrical portion 2a and the through hole 1b.

In such a rotary electric component with a push switch, when the operating shaft 7 is rotated in the state of FIG. 1, the operating shaft 7 is guided by the operating portion 7a to guide the flange portion 1d.
Base 1 of connecting member 15 integrally attached to operation shaft 7
5b is guided by the hole 4a of the mounting base 4,
It rotates with the point supported, and the rotating body 2 is
Rotates while performing a click operation. Then, the movable contact 3 is rotated by the rotation of the rotating body 2, the movable contact 3 is brought into contact with or separated from the fixed contact 4, the contact is switched, and the rotary electric component D is operated. When the operation shaft 7 is pressed and moved in the axial direction in the state of FIG.
And the non-circular portion 7c moves with the hole 2a as a guide, the operating shaft 7 moves the connecting member 15 in the axial direction, and the connecting member 15 is formed by the rubber member 13 on the flat surface of the convex portion 15d and the projecting portion 15c. Press the flat surface of Then, as shown in FIG. 3, the rubber member 13 is pushed and deformed and inverted, and the movable contact 12 is pressed by the click operation of the rubber member 13, and the movable contact 12 comes into contact with the fixed contact 11 to turn on. Become. Then, when the pressing force of the operation shaft 7 is released from this state, the rubber member 13 is inverted and returned to the original state by its own spring property, so that the connecting member 15 and the operation shaft 7 are pushed back by the rubber member 13. At this time, the flange 7b of the operation shaft 7 and the bearing 1
The return impact of the operation shaft 7 is mitigated by the spring member 8 interposed between the flange portion 1d and the impact noise is extremely reduced. At this time, the base portion 15b has a substantially conical shape,
Since the tip is thin, it does not catch on the hole 4a. When the movement of the flange 7b of the operating shaft 7 is stopped by the flange 1d and the protrusion 15c of the connecting member 15 is held by the housing 4b of the mounting base 4, the movement of the movable contact 12 is stopped. Due to the resiliency of, it returns to the original state, becomes the OFF state, and returns to the state of FIG. In this manner, the operation of the rotary electric component D and the push switch P is performed. In the present embodiment,
Since the operation portion 7a uses the flange portion 1d as a guide, the distance between the operation portion 7a and the other guide portion can be increased.
Grease may be applied to the contact position as a guide. In this case, since the support rotation is performed with a large diameter, a smooth and stable operation feeling can be obtained. The relationship between the concave portion 13a and the convex portion 15d of the rubber member 13 and the connecting member 15 in the above embodiment may be reversed, and the rubber member 13 may have a convex portion, and the connecting member 15 may have a concave portion.

[0014]

According to the rotary electric component with push switch of the present invention, since the rubber member 13 and the connecting member 15 are unevenly connected, the position of the rubber member 13 and the connecting member 15 can be fixed. The pressing position of the connecting member 15 against the rubber member 13 becomes constant, and a rotary electric component with a push switch that can obtain a stable click feeling can be provided.
Further, since the rubber member 13 and the connecting member 15 are unevenly coupled, when the vibration or the pressing of the connecting member 15
It is possible to provide a long-life rotary electric component with a push switch that does not cause sliding between the rubber member 13 and the rubber member 13 and does not wear the rubber member 13. In addition, since the rubber member 13 and the connecting member 15 are unevenly coupled, when the connecting member 15 is pressed, the pressing position on the rubber member 13 becomes constant, and a rotary electric component with a push switch with a stable click feeling can be provided. .

On the axis S of the operating shaft 7, the engaging portions 7d and 15a of the operating shaft 7 and the connecting member 15 and the connecting member 15
And the concave portion 13a and the convex portion 15d of the rubber member 13, so that the rubber member 13 can be pressed on the axis S of the operating shaft 7, and the rotary type with a push switch that is stable and has a good click feeling. We can provide electrical components. In addition, since the flat surface of the rubber member 13 and the flat surface of the connecting member 15 are in contact with each other, the pressing of the connecting member 15 against the rubber member 13 becomes a surface pressing, and the deformation of the rubber member 13 can be made constant, so that the click feeling is extremely high. , A rotary electric component with a push switch can be provided. Further, the overhanging portion 15 provided on the connecting member 15 is provided.
c can be stored in the storage section 4b of the mounting base 4,
The positioning during the assembly of the connecting member 15 not only improves the assemblability, but also enables the positioning of the engaging portion 7d, which is the free end of the operating shaft 7, with the connecting member 15, and the operability of the operating shaft 7 is good and stable. A rotary electric component with a push switch can be provided.

[Brief description of the drawings]

FIG. 1 is a sectional view of a rotary electric component with a push switch according to the present invention.

FIG. 2 is a perspective view of a main part of a rotary electric component with a push switch according to the present invention.

FIG. 3 is an explanatory view showing the operation of the rotary electric component with a push switch of the present invention.

FIG. 4 is a cross-sectional view of a conventional rotary electric component with a push switch.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bearing 1a Storage part 1b Through-hole 1c Cylindrical part 1d Flange part 2 Rotating body 2a Hole 2b Irregular part 2c Cylindrical part 2d Holding part 2e Insulating member 2f Hole 3 Movable contact 4 Mounting base 4a Hole 4b Storage part 5 Fixed contact D rotation Mold electric component 7 Operation shaft 7a Operation part 7b Flange part 7c Non-circular part 7d Engagement part 8 Elastic member 9 Mounting plate P Push switch 10 Case 11 Fixed contact 12 Movable contact 13 Rubber member 13a Concave part 14 Plate part 15 Connection member 15a Joint 15b Base 15c Overhang 15d Convex

Claims (4)

[Claims] 1. A rotary electric component having a rotary body provided with a hole, a movable contact and a fixed contact disposed at a rear portion of the rotary electric component, and a bowl-shaped rubber for operating the movable contact. A push switch having a member, an operating shaft inserted into the hole of the rotating body, and a connecting member interposed between the operating shaft and the rubber member, for transmitting movement of the operating shaft to the rubber member. An engagement portion provided at an end of the operation shaft and an engagement portion of the connection member are fitted and coupled, and a concave portion is provided on one of the connection member and the rubber member, and a convex portion is provided on the other. Parts are provided and are unevenly coupled to each other, and the rotating member is rotated to operate the rotary electric component by the rotating operation of the operating shaft, and the connecting member is moved by the axial moving operation of the operating shaft. The push switch is operated by moving the rubber member through A rotary electric component with a push switch, characterized in that it is made. 2. The operating shaft according to claim 1, wherein an engaging portion between the operating shaft and the connecting member, and a concave portion and a convex portion of the connecting member and the rubber member are provided on an axis of the operating shaft. A rotary electrical component with a push switch as described. 3. The concave portion or the convex portion is provided at a top portion of the bowl-shaped rubber member that forms a flat surface, and a facing surface of the connecting member facing the top portion of the rubber member is a flat surface. The rotary electric component with a push switch according to claim 1 or 2, wherein the flat surface of the rubber member and the flat surface of the connecting member are connected to each other in an uneven manner while being in contact with each other. 4. A push switch according to claim 3, wherein the connecting member is provided with an overhang having the flat surface, and the overhang can be held by a storage portion provided on the mounting base. Rotating electrical components.