JP2586343Y2 - Swing electronic components - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oscillating electronic component which changes its resistance value by oscillating a knob.
More particularly, the present invention relates to a oscillating electronic component having a sound deadening function that does not produce any sound even when the knob is oscillated.

[0002]

2. Description of the Related Art Conventionally, there has been a variable resistor or switch which swings in a seesaw shape by pressing an end of a knob. Such a swing type electronic component is used as a zoom switch of a video camera, for example. There has been a swing type electronic component using a coil spring as a return spring.

FIG. 6 is a view for explaining the operation of a swing type electronic component using a conventional coil spring of this kind. FIG.
, 180 is a coil spring wound in a ring shape, 1
Reference numerals 91 and 193 denote locking projections provided on a slidable object (not shown) pivotally supported, and reference numerals 195 and 197 denote engagement members provided on a case (not shown) for accommodating the slidable object. Stop projections. The case and its locking projections 195 and 197 are stationary, and the sliding type object and its locking projections 191 and 193 are stationary.
Rotates. Further, a knob (not shown) is fixed to the sliding type object, and when one end of the knob is pressed, the sliding type object swings in that direction. The carp of this conventional example
The both ends 183 and 185 of the lub spring 180
The rubber tubes 187 and 189 have been removed.
You.

In FIG. 1, first, as shown in FIG. 1A, both ends 183 and 185 of a coil spring 180 are normally provided.
Are locked by both locking projections 195 and 197 of the case, and at the same time, are in contact with both locking projections 191 and 193 of the sliding type object.

Next, when one end of the knob is pressed to swing the sliding type object in the counterclockwise direction a as shown in FIG. 2B, the end 185 of the coil spring 180 is brought into contact with the locking projection of the case. In the state of being locked to 197, the locking projection 191 of the sliding-type object presses and moves the end 183 of the coil spring 180. Then, when the pressing on the knob is released, the sliding-type object returns to the state shown in FIG.

Next, when the other end of the knob is pressed to swing the sliding type object in the clockwise direction b as shown in FIG. 2C, the end 183 of the coil spring 180 is brought into contact with the locking projection of the case. In the state of being locked to 195, the locking projection 193 of the sliding type presses and moves the end 185 of the coil spring 180. Then, when the pressing on the knob is released, the sliding-type object returns to the state shown in FIG.

In the above conventional example, the tubes 187, 189 according to the present invention are attached to both ends 183, 185 of the coil spring 180, respectively.
This is to absorb sound and vibration generated when the locking projections 191 and 193 of the sliding type object and the locking projections 195 and 197 of the case abut on the 185.

[0008]

Incidentally, in the above-mentioned conventional example, the outer circumferences of the tubes 187 and 189 of the both ends 183 and 185 of the coil spring 180 sometimes come into direct contact with the surface of the sliding type object or the case. In such a case, as shown in FIG.
When 3,185 moves in the directions of arrows c and d, the tubes 187 and 189 rotate in the directions of arrows e and f, whereby the tubes 187 and 189 gradually move from both ends 183 and 185 of the coil spring 180. I got out.
In the end, there was a problem that it completely came off.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and has as its object to provide a rocking electronic component which can muffle sound and does not come off tubes attached to both ends of a coil spring for muffling. Is to do.

[0010]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is directed to a method of connecting a substrate to a substrate which is pivotably supported by the substrate.
A sliding type member for operating an electric function portion provided therebetween, a coil spring wound in a coil shape, both ends of which are drawn out in a radially outward direction to form a locking portion, and a case for accommodating each of these members And a knob attached to the slide-type object. The coil spring is stored and held in a coil spring storage portion provided on the slide-type object. Contact both locking parts,
On the other hand, the locking projection provided on the surface of the case facing the sliding type object is brought into contact with both locking portions of the coil spring, and the knob is swung to either one of the sliding type object. When one of the coil springs is swung, one of the locking portions provided on the sliding type object is held in a state where one of the locking portions of the coil spring is held by one of the locking projections provided on the case. In a swingable electronic component having a structure in which a projection presses and moves the other locking portion of the coil spring, both locking of the coil spring is performed.
Attach tubes made of tubular elastic material to each part
I decided to. Also, the present invention provides a sliding type of the coil spring.
Sliding type coil near the locking part facing the surface side of the object
Pull the coil spring at a predetermined height from the bottom of the spring storage part.
A separate projection is provided. In addition, the present invention
Abut the locking part on the opposite side to the surface of the sliding type
When the locking portion contacts the locking projection at the tip of the locking projection.
A regulating projection that regulates not to come into contact with the case
It was decided to provide.

[0011]

[Action] Tubes are attached to both locking parts of the coil spring.
Therefore, silencing can be achieved. The locking portion towards facing the side of the sliding type of coil spring, is pulled away from the surface of predetermined height sliding-type product by projection provided on the bottom of the coil spring accommodating portion of the sliding type thereof. On the other hand, the locking portion on the opposite side of the coil spring is regulated so as not to come into contact with the case by a regulating projection provided on the sliding type object. For this reason, the tube attached to any of the locking parts does not contact the surface of the sliding type object or the surface of the case,
The detachment of the tube caused by the rotation of the tube is reliably prevented.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings. FIG. 1 is an exploded perspective view showing an oscillating variable resistor 1 according to one embodiment of the present invention. As shown in FIG. 1, the oscillating variable resistor 1 has a slider 30 attached to one surface of a sliding object 10 and a coil spring 40 attached to the other surface thereof. The substrate 50 is housed in a case 60 composed of a case main body 61 and a case cover 80, and a knob 90
It is configured with attached. Hereinafter, each component will be described.

As shown in FIG. 1, the sliding type object 10 is formed in a shape in which a part of a disk is cut linearly, and a rotating shaft 11 protrudes from both sides at the center (however, FIG. 1). The drawing does not show the rotating shaft 11 protruding from the rear surface side of the sliding die 10). On both end surfaces of the rotating shaft 11, there are provided fitting projections 12, 12 each having a substantially rectangular parallelepiped shape for fitting fitting grooves 91, 91 of a knob 90 described below (however, in FIG. Only the fitting projection 12 is shown). On one surface of the sliding type object 10 (the surface on the side shown in the figure), four arc-shaped guide plates 13, 15, 17, and
By providing the coil spring 19 and the guide protrusion 20, a coil spring housing portion 21 for housing a coil spring 40 described below is formed therebetween, and two substantially trapezoidal locking protrusions 23 and 25 are separated therefrom by a predetermined distance. It is protruding. Further, a regulating protrusion 26 is provided at the end of the side surface of the locking protrusion 25.

Here, a projection 27 having a predetermined length extends outward from the guide plate 13. In other words, the projection 27 extends so as to cross the bottom of the coil spring housing 21 between the arc-shaped projections 13 and 17.

Next, a slider 30 made of an elastic metal plate is fixed to the other surface (the surface not shown in the figure) of the sliding die 10. The fixing of the slider 30
Is inserted into a projection (not shown) provided on the surface of the sliding die 10 and the tip of the projection is heat caulked. The slider 30 has two sets of sliding contacts 31,
33 are provided.

Next, a flexible substrate 50 is formed by forming two arc-shaped resistor patterns 51 and 53 on a synthetic resin film.
Are printed, and each is connected to the conductor pattern 55. Further, a through hole 57 is provided at a predetermined position of the flexible substrate 50 so as to penetrate the rotary shaft 11 provided on the sliding die 10. Further, five mounting holes 59 are provided on the outer periphery of the flexible substrate 50.

The coil spring 40 is formed by winding an elastic metal wire in a coil shape instead of twice, and linearly pulling out the locking portions 41 and 43 from both ends in a radially outward direction. Tubes 45, 47 made of cylindrical silicon rubber are attached to the locking portions 41, 43.

Next, the case body 61 is provided with a plate 63 having a desired shape.
A side wall 65 is provided on the outer periphery of the sliding member, and a flange portion 67 is provided at an end of the side wall 65.
A hole 69 for inserting and supporting the 0 rotation shaft 11 is provided. Further, a plurality of projections 68 protrude from the flange portion 67. These projections 68 are provided at positions corresponding to the mounting holes 59 provided in the flexible substrate 50.

FIG. 2 is a perspective view showing the back side of the case body 61. As shown in FIG. As shown in FIG.
At a predetermined position on the back surface of the first plate 63, arc-shaped locking projections 71 and 73 are protruded, and a rubber cushion insertion portion 75 for accommodating a rubber cushion 77 shown in FIG. Is provided. Here rubber cushion 7
7 has a long arm 78 in the lateral direction, and both end faces 78a,
Reference numeral 78b designates a contact surface for contacting the locking projections 23, 25 of the sliding die 10 described below.

Next, the case cover 80 is formed in a plate shape as shown in FIG. 1, and a cylindrical hole 81 for inserting and supporting the rotating shaft 11 of the sliding type object 10 is provided substantially at the center thereof. The outer periphery is provided with a mounting hole 83 into which the projection 68 of the case main body 61 is inserted.

Next, the knob 90 is formed in a substantially box-like shape having an open lower surface, and has fitting grooves 91, 91 fitted in the fitting projections 12, 12 of the sliding mold 10 at the lower ends at the center of both sides. (Only the near side is shown in the figure).

Next, a method of assembling the oscillating variable resistor 1 will be described. First, as described above, the slider 30 is fixed to the sliding type object 10, and the rubber cushion 77 is stored and held in the rubber cushion insertion portion 75 of the case body 61.
The tubes 45 and 47 are attached to the locking portions 41 and 43 of the coil spring 40, respectively.

Next, the coil spring 40 is accommodated in the coil spring accommodating portion 21 provided on the sliding type object 10. Specifically, the coil spring 40 is moved between the guide plates 13 and 17 and the guide plates 15 and 1.
9 and are engaged with the guide projections 20 so as not to fall out to the near side (see FIG. 4A). At this time, the locking portions 41 and 43 of the coil spring 40 are engaged with the locking projections 23 and 25 of the sliding type object 10, respectively (see FIG. 4A).

Next, the sliding type object 10 is housed in the case main body 61, and the rotating shaft 11 is inserted and supported in the hole 69 of the case main body 61, while the case cover 80 to which the flexible substrate 50 is attached is attached to the case main body 61. Touch the back. At this time, the projection 68 of the case main body 61 is inserted into the mounting hole 59 of the flexible substrate 50 and the mounting hole 83 of the case cover 80 is penetrated. The state at this time is shown in FIG.

Then, as shown in FIG.
In addition, knobs are fitted to the fitting projections 12, 12 of the sliding type object 10 protruding outside from the holes 69, 81 provided in the case cover 80 (however, only the fitting projection 12 on the near side is shown in the figure). The 90 fitting grooves 91 are fitted. As a result, when both ends of the knob 90 are pressed, the knob 90 swings, and at the same time, the sliding type object 10 swings, so that the sliding contacts 31, 33 of the slider 30 attached to the sliding type object 10 are flexible. By sliding on the resistor patterns 51 and 53 provided on the substrate 50, the resistance value changes.

FIG. 4 is an explanatory view showing a main part of a return mechanism of the oscillating variable resistor 1 using the coil spring 40. FIG. 4A shows a neutral state, and FIG. FIG. 3C shows a state in which the knob 90 is swung in the left rotation direction, and FIG. 3C shows a state in which the knob 90 is swung in the right rotation direction.

In FIG. 1, the sliding type object 10 is shown in its entirety, but only the locking projections 71 and 73 and the rubber cushion 77 of the case body 61 are shown. Then, the sliding type object 10 swings together with the knob 90, but both the locking projections 71, 73 and the rubber cushion 77 of the case main body 61 are always stationary.

First, in the neutral state shown in FIG. 3A, the locking portions 41, 43 to which the tubes 45, 47 at both ends of the coil spring 40 are attached are both locking projections 71, 73 provided on the case body 61. At the same time, it is also in contact with both locking projections 23 and 25 of the sliding die 10. The rubber cushion 77 attached to the case main body 61 is located exactly at the center of both the locking portions 41 and 43.

Next, as shown in FIG.
When the left end of is pressed, the sliding object 10 swings counterclockwise. As a result, in a state where the right locking portion 43 of the coil spring 40 is locked by the stationary locking projection 73 of the case main body 61, the locking projection 23 of the sliding die 10 is
Is pressed to move. Knob 90
The locking portion 41 of the coil spring 40 is a rubber cushion 77
Can be swung until it comes into contact with the end face 78a. When the locking portion 41 to which the tube 45 of the coil spring 40 is attached collides with the end face 78a of the rubber cushion 77, both of them have elasticity, so that no collision sound or vibration occurs.

Next, when the pressure on the knob 90 is released,
By the elastic force of the coil spring 40, the knob 90 and the sliding type object 10 return to the state shown in FIG. At this time, the locking portion 41 collides with the locking projection 71, but since the tube 45 is attached to the locking portion 41, no collision sound or vibration occurs at the time of the collision.

Next, the state shown in FIG.
When the right end of the knob 90 is pressed, the sliding object 10 swings clockwise as shown in FIG. Thereby, the coil spring 4
The locking projection 25 of the sliding die 10 presses the locking section 43 on the right side of the coil spring 40 in a state where the locking section 41 on the left side of the coil spring 40 is locked by the stationary locking projection 71 of the case body 61. Then move.

Next, when the pressure on the knob 90 is released,
By the elastic force of the coil spring 40, the knob 90 and the sliding type object 10 return to the state shown in FIG. At this time, the locking portion 43 collides with the locking projection 73, but since the tube 47 is attached to the locking portion 43, no collision sound or vibration occurs at the time of the collision.

By the way, the coil spring 40 in this embodiment is
In FIG. 4, one of the locking portions 41 is on the surface side of the sliding type object 10 (FIG. 4).
, And the other locking portion 43 is wound so as to face the surface of the case main body 61 (in FIG. 4, the front side of the paper). A projection 27 is provided in the vicinity of the locking portion 41 (that is, the locking portion 41 which faces the surface of the sliding die 10 and may be in direct contact with the surface of the sliding die 10). As shown in FIG. 5, the locking portion 41 is separated from the surface of the sliding mold 10 by the thickness of the projection 27. Therefore, even if the locking portion 41 swings in the direction of arrow A shown in FIG.
The tube 5 does not directly touch the surface of the sliding mold 10, and thus the tube 45 is reliably prevented from coming off due to the rotation of the tube 45.

On the other hand, the locking portion 43 (that is, the locking portion 43 which faces the surface of the case main body 61 and may directly contact the surface of the case main body 61) swings in the direction of arrow B. Since the regulating projection 26 is provided at the upper end of the locking projection 25, the tube 47 attached to the locking section 43 is always used when the locking section 43 comes into contact with the locking projection 25. It is located below the regulating projection 26 and does not move above it. That is, when the tube 47 comes into contact with the locking projection 25, its position is always corrected in a direction to be separated from the surface of the case main body 61 by the thickness of the regulating projection 26. The tube 47 does not touch the surface of the case body 61. Therefore, the tube 47 does not rotate and does not fall out of the locking portion 43.

The present invention is not limited to the oscillating variable resistor,
The present invention may be applied to various other oscillating electronic components such as an oscillating switch.

[0036]

[Effects of the Invention] As described in detail above, according to the oscillating electronic component of the present invention , not only can the sound be eliminated,
It has an excellent effect that the tubes attached to both ends of the coil spring for noise reduction can be reliably prevented from coming off.

[Brief description of the drawings]

FIG. 1 shows an oscillating variable resistor 1 according to an embodiment of the present invention.
FIG.

FIG. 2 is a perspective view showing a back side of a case main body 61.

FIG. 3 is a diagram showing a procedure for assembling the oscillating variable resistor 1;

FIG. 4 is a mechanism explanatory view showing a main part of a return mechanism of the oscillating variable resistor 1 using a coil spring 40;

FIG. 5 is a diagram for explaining the operation of the present invention.

FIG. 6 is an explanatory diagram of an operation of a swingable electronic component using a conventional coil spring.

FIG. 7 is a view for explaining a problem of a swing type electronic component using a conventional coil spring.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Oscillating electronic component 10 Sliding object 21 Coil spring accommodating part 23, 25 Locking protrusion 26 Regulation protrusion 27 Protrusion 30 Slider 40 Coil spring 41, 43 Locking part 45, 47 Tube 50 Flexible board 60 Case 61 Case Main body 71, 73 Locking projection 80 Cover

──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Showa 60-109303 (JP, U) Japanese Utility Model Showa 61-131806 (JP, U) Japanese Utility Model Showa 59-48004 (JP, U) Japanese Utility Model Showa 63- 118203 (JP, U) Hira 1-39602 (JP, U) Hira 3-25202 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) H01H 23/00-23 / 30 H01C 10/30-10/36

Claims (3)

(57) [Scope of request for utility model registration] 1. A substrate, said substrate being pivotally supported so as to be swingable.
A sliding-type product allowed to operate the electrical function portion provided between,
A coil spring wound in a coil shape, both ends of which are drawn out in a radially outward direction to serve as a locking portion, a case for accommodating these members, and a knob attached to the sliding type object, The coil spring is stored and held in a coil spring storage portion provided on the sliding type object, and both locking portions of the coil spring are brought into contact with locking projections provided on the sliding type object. When the locking projection provided on the surface facing the object is brought into contact with both the locking portions of the coil spring, and the knob is swung to either one, the sliding type object is swung. While one of the locking portions of the coil spring is held by one of the locking protrusions provided on the case, one of the locking protrusions provided on the sliding type object is engaged with the other of the coil springs. Oscillating type of structure that moves by pressing the stop In part, each of the two locking portions or tubular elastic member of the coil spring
Oscillating power supply with a tube
Child parts. 2. The coil spring is opposed to a surface of a sliding type object.
Bottom of the coil spring storage part of the sliding type object near the locking part
Is provided with a protrusion for separating the coil spring from the bottom by a predetermined height.
The oscillating electronic component according to claim 1, wherein the oscillating electronic component is eccentric. 3. The coil spring is opposite to the surface of the sliding type object.
The locking projection is provided at the tip of the locking projection for abutting the opposite locking section.
Will not come into contact with the case when it comes into contact with the locking projection.
Claims provided with a regulating projection for regulating
Item 2. An oscillating electronic component according to Item 1.