JPH041687Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a sliding type electronic component such as a sliding type variable resistor.

[Conventional technology]

For electronic equipment, especially audio equipment such as car stereos,
BACKGROUND OF THE INVENTION Many electronic components including sliders, such as sliding type variable resistors, are used.

FIG. 7 is an exploded perspective view showing a conventional example of such a slide type variable resistor.

In the figure, 1 is a sliding body made of synthetic resin, and the sliding body 1 is formed with a base 1b and a lever 1a extending upward from the base 1b for sliding the sliding body 1. . A metal sliding body (not shown) is attached to the lower surface of the base 1b. Reference numeral 2 denotes a case of a sliding type variable resistor made of synthetic resin. A plurality of slide holes 2a are formed on the upper surface of the case 2, and a plurality of protrusions are formed on both lower edges of the case 2 in the longitudinal direction. 2b is formed. Reference numeral 3 denotes a substrate on which a plurality of patterns 3a of resistors and conductors are formed. A hole 3b is provided in the substrate 3 at a position corresponding to the protrusion 2b of the case 2.

The assembly of this sliding type variable resistor consists of sliding body 1
After inserting the lever 1a into the slide hole 2a and inserting the hole 3b of the board 3 into the protrusion 2b,
The case 2 is fixed onto the substrate 3 by hot caulking the tips of the protrusions 2b. At this time, the slider of the slider 1 comes into contact with the pattern 3a, and when the lever 1a is moved along the slide hole 2a, a predetermined resistance value is derived from the pattern of the resistor.

[Problem that the invention attempts to solve]

However, in the case of the conventional slide type variable resistor assembled in this way, case 2
When viewing the sliding variable resistor from above, the internal parts (for example, the pattern 3a on the board 3) can be seen through the slide hole 2a of the case 2, and foreign matter such as dust may enter and the appearance may be affected. There was a problem that it spoiled the aesthetic appearance.

Further, when such a sliding type electronic component is placed on an operation panel in an automobile, it is necessary to mount an illumination lamp or the like for convenience of operation. Particularly in these days when electronic devices are becoming smaller, it is extremely difficult to arrange many illumination lamps in a narrow space, and this poses a problem in that it becomes an obstacle to miniaturization.

The present invention has been developed in view of the above points, and even when the sliding electronic component is viewed from the top of the case, the inside of the electronic component cannot be seen through the sliding hole, giving it an excellent aesthetic appearance and preventing dust, etc. To provide a small sliding type electronic component that does not allow foreign matter to enter inside and is equipped with illumination means.

[Means for solving problems]

In order to solve the above problems, the present invention has a case with a rectangular slide hole formed on the top surface from which the lever of the sliding body protrudes, and a conductor and resistor pattern for electronic components formed on the top surface and attached to the bottom end of the case. a base having a slider on its lower surface that is located between the board and the case and slides into contact with the conductor and resistor patterns of the board; and a base extending upward from the base and protruding from the slide hole of the case. A sliding electronic component comprising a lever and a sliding body, wherein the case is made of a transparent material, and a through hole is provided at the base of the sliding body that passes through the base in the longitudinal direction of the slide hole of the case. A rectangular shielding plate having a size equal to or larger than the slide hole is formed through the through hole, and both ends thereof are fixed to protrusions provided on the back surface of the case so as to cover the slide hole. and substantially the entire surface of the case other than the slide hole is covered with a non-light-transmitting member, and the shielding plate and the non-light-transparent member are covered near both longitudinal ends of the slide hole inside the case. The light emitting element is arranged at a position that guides light in a straight line to the inner surface of the slide hole located between the two.

[Effect]

By configuring the sliding type electronic component as described above, when the sliding type electronic component is viewed from the top of the case, the inside cannot be seen through the sliding hole of the case due to the shielding plate, which improves the appearance and improves the appearance of the sliding type electronic component. Since the shielding plate prevents metal pieces such as pins or dust from entering from the outside, failures such as short circuits are reduced. In addition, the light emitting element is placed in the case at a position where the light emitted by the light emitting element passes through the case and directly illuminates the inner surface of the slide hole in a straight line, so that the light emitted from the light emitting element The light passes through the case and directly reaches the inner surface of the slide hole, and is diffusely reflected by the inner surface, making only the vicinity of the inner surface stand out in the form of a dim band of light. The surrounding surfaces of the shield plate surface are also illuminated. In other words, according to the sliding electronic component according to the present invention, only the inner peripheral part of the slide hole from which the sliding body to be operated protrudes can be highlighted in the form of a luminous band, so that the operating range of the sliding body can be achieved even in a dark place. can be clearly displayed and its operation is reliable. It also has an excellent design. Further, according to the present invention, a predetermined area can be effectively illuminated with a small number of lighting elements, and the sliding type electronic component can be easily miniaturized.

〔Example〕

Hereinafter, one embodiment of the present invention will be described in detail based on the drawings.

In this embodiment, a slide type variable resistor suitable for use as an equalizer in a car stereo is shown.

Figure 2 is a diagram showing the sliding body 5 according to the present invention, in which figure a is a plan view, figure b is a right side view, and figure c
1 is a side sectional view taken along the dashed line A-A' in FIG.

In the figure, reference numeral 5 denotes a sliding body integrally formed of an insulating material such as synthetic resin. The sliding body 5
A base 5b and an operating lever 5a extending upward from the base 5b are formed. Board 5
A through hole 5c having a shape and size through which a shielding plate 8 described below passes is formed approximately in the center of b. Also,
On the bottom surface of the substrate 5b, a metal slider 9 as described below is provided.
Slider mounting protrusions 5d for mounting the slider are formed at four locations.

FIG. 3 is a plan view showing the shielding plate 8. FIG. The shielding plate 8 is a plate formed in a rectangular shape, and mounting holes 8a, 8a for fixing the shielding plate 8 to the case 6 are formed at both ends thereof. Width d ₂ of shielding plate 8
is formed to be slightly smaller than the width d ₁ of the through hole 5c shown in FIG. 2a, and the thickness of the shielding plate 8 is formed to be slightly smaller than the height t of the through hole 5c shown in FIG. 2c. ing. Further, the shielding plate 8 is configured to have a size equal to or larger than the size of a slide hole portion 6a of the case 6, which will be described below.

FIG. 1 is an exploded perspective view of a sliding variable resistor according to the present invention using a sliding body 5 and a shielding plate 8, and FIG. 4 is a sectional view of the assembled sliding variable resistor. 6 is a partial cross-sectional view of the case 6 shown in FIG. 1 taken along line A-A and viewed from the direction of the arrow.

In FIGS. 1 and 4, 6 is a case of a sliding type variable resistor made of an insulating material such as a transparent synthetic resin such as acrylic, and a plurality of slide holes 6a are formed on the upper surface of the case 6. A plurality of protrusions 6b are formed on both lower edges 6c, 6c of the case 6 in the longitudinal direction. Also, the lower surfaces of both lower edges 6c, 6c of the case 6, and the protrusions 6b, 6b.
Holes 6f, 6f into which light emitting elements 10, 10 described below are inserted are formed inside (see FIG. 4).
As shown in FIG. 4, when the light emitting elements 10, 10 are inserted into the holes 6f, 6f, the light emitted by the light emitting elements 10, 10 is transmitted through the case 6 in a straight line. It is provided at a position that directly illuminates the inner surface of the slide hole portion 6a. Furthermore, projections 6d for attaching a shielding plate (shown in FIGS. 4 and 6) are formed on the back side of both ends of the slide hole 6a of the case 6, and a recess 6e is formed along the slide hole 6a. The width of the concave portion 6e is the width of the sliding body 5, and the depth is slightly larger than the distance between the upper surface of the base portion 5b of the sliding body 5 and the shielding plate 8. 7
This is a substrate on which a plurality of resistor patterns 7a and conductor patterns 7b are printed and formed on the front surface, and a conductor pattern for connecting the light emitting element 10 is formed on the back surface. The resistor pattern 7a and the conductor pattern 7b are formed at a position where a slider 9 (shown in FIG. 4) of the slider 5 comes into sliding contact. Further, the substrate 7 is provided with a hole 7c at a position corresponding to the projection 6b of the case 6, into which the projection 6b engages. In addition, on both sides of the resistor pattern 7a and the conductor pattern 7b on the substrate 7, the case 6
The light emitting element 1 is located at the position corresponding to the holes 6f and 6f.
0 and 10 are placed. Light emitting elements 10, 10
As shown in FIG. 4, both terminals are connected to a predetermined conductor pattern on the lower surface of the substrate 6. The light emitting element 10 is composed of, for example, a lamp, a light emitting diode, or the like.

Reference numeral 11 denotes a flat name plate made of a material that does not transmit light, such as metal or opaque synthetic resin. The nameplate 11 is placed on the top surface of the case 6, and a plurality of elongated holes 11a having the same size and shape as the slide holes 6a are formed at positions corresponding to the slide holes 6a of the case 6. Furthermore, a symbol or the like indicating the sliding type variable resistance element is formed as a transparent portion 11b at a predetermined position around the elongated hole portion 11a.

Next, how to assemble this slide type variable resistor will be explained.

First, the slider mounting protrusion 5d on the lower surface of the slider 5
Attach the slider 9 to. At this time, the slider 9 is fixed by heat caulking the slider attachment projections 5d. Next, the shielding plate 8 is inserted into the through hole 5c of the sliding body 5. Then, the lever 5a of the sliding body 5 is inserted into the slide hole 6a of the case 6, and at the same time, the mounting holes 8a, 8a of the shielding plate 8 are inserted into the shielding plate mounting protrusion 6d of the case 6.
The shielding plate 8 is fixed to the case 6 by hot caulking the tip of d.

Next, after inserting the protrusion 6b of the case 6 into the hole 7c of the substrate 7, the case 6 is fixed onto the substrate 7 by hot caulking the tip of the protrusion 6b. At this time, as shown in FIG. 4, the light emitting elements 10, 10 placed on the substrate 7
It is within 6f. At this time, as shown in FIG. 4, the slider 9 of the slider 5 comes into contact with the resistor pattern 7a and the conductor pattern 7b.
When the lever 5a of the slider 5 is operated and the slider 5 is moved along the slide hole 6a of the case 6, these resistor patterns 7a and conductor patterns 7b are removed.
The resistance value between the predetermined terminals derived from the value changes.

Next, the nameplate 11 is glued to the top surface of the case 6.
At this time, the slide hole 6a of the case 6 and the nameplate 11
The elongated hole portions 11a of the two are aligned.

FIG. 5 is a plan view of a part of the slide type variable resistor assembled in this manner, viewed from directly above. As shown in the figure, even when the sliding type variable resistor is viewed from above the case 6, the shielding plate 8 allows the slide hole 6a of the case 6 to be seen through the inside part (for example, the resistor pattern on the board 7). 7
a, conductor pattern 7b, etc.) are not visible. Furthermore, since the shielding plate 8 closes the slide hole 6a, direct intrusion of foreign substances such as conductive materials from the slide hole 6a is prevented, and failures such as short circuits are reduced.

Here, the light emitting elements 10, 10 placed on the substrate 7
When the light emitting element 1 is turned on, as shown in FIG.
The light l emitted by the lenses 0 and 10 passes through the case 6 made of a transparent material and is diffusely reflected on the inner surface of the slide hole 6a. Due to the diffusely reflected light, the vicinity of the inner surface of the slide hole 6a becomes a dim light zone Bl as shown in FIG.
stands out in a shape. Furthermore, the surface of the shielding plate 8 is also illuminated and stands out due to the diffusely reflected light. That is, the light emitting elements 10,1
Only the vicinity of the inner surface of the slide hole 6a and the surface of the shielding plate 8 are illuminated by the zero light and stand out. Therefore, when this sliding electronic component is viewed from above with the light emitting elements 10 and 10 turned on, only the inner surface of the elongated hole 11a of the nameplate 11 (the inner surface of the slide hole 6a of the case 6) and the inside thereof are visible. is illuminated, the position of the sliding body 5 can be easily confirmed, and its operation becomes easy.

Although one embodiment of the sliding type electronic component according to the present invention has been described above in detail using a sliding type variable resistor, the present invention is not limited to this.
Needless to say, the present invention can be applied not only to sliding type variable resistors of various other shapes, but also to various other sliding type electronic components (for example, sliding type switches, etc.). Further, the light emitting element may be placed elsewhere as long as it is inside the case. Further, the name plate is not necessarily necessary, and an opaque paint or the like may be applied to the top surface of the case as long as it does not allow light to pass through the top of the case.

[Effect of idea]

As described in detail above, according to the present invention, the following excellent effects can be obtained.

When viewing the sliding electronic component from the top of the case, the inside of the component cannot be seen through the slide hole of the case due to the shielding plate, which improves the aesthetic appearance and prevents metal pieces such as pins from coming in from the outside. Failures such as short circuits are also reduced due to the prevention of intrusion of dust and the like.

The light emitting element is placed in the case at a position where the light emitted by the light emitting element passes through the case and directly illuminates the inner surface of the slide hole in a straight line, so the light emitted from the light emitting element is Passes through the case and directly reaches the inner surface of the slide hole,
The light is diffusely reflected by the inner surface, making only the vicinity of the inner surface stand out in the form of a dim light band, and the surrounding surface of the shielding plate surface is also illuminated by the diffusely reflected light. In other words, according to the sliding electronic component of the present invention, only the area around the slide hole from which the sliding body to be operated protrudes can be highlighted in the form of a luminous band, making the operating range of the sliding body clearly visible even in a dark place. can be displayed, and its operation is reliable. It also has an excellent design.

Further, according to the present invention, a predetermined area can be effectively illuminated with a small number of lighting elements, and the sliding type electronic component can be easily miniaturized.

Further, in the present invention, since the projection is provided on the back surface of the case to securely fix the shielding plate, the shielding plate does not shake at all.

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view of a sliding type variable resistor according to the present invention, and FIG. 2 is a diagram showing a sliding body 5 according to the present invention, in which figure a is a plan view, figure b is a right side view, Figure c is a side sectional view of figure a taken along the dashed line A-A' and viewed in the same direction, figure d is a bottom view, figure 3 is a plan view showing the shielding plate 8, and figure 4. 5 is a sectional view of a slide type variable resistor according to the present invention, FIG. 5 is a plan view of a main part of a part of the slide type variable resistor according to the present invention seen from directly above, and FIG. 6 is a part of case 6. The sectional view and FIG. 7 are exploded perspective views showing a conventional slide type variable resistor. In the figure, 5...Sliding body, 5a...Lever, 5b...
...Base, 5c...Through hole, 6...Case, 6a...
...Slide hole portion, 7...Substrate, 7a...Resistor pattern, 7b...Conductor pattern, 8...Shielding plate, 9...Slider, 10...Light emitting element, 11...
It is a nameplate (opaque member).

Claims (1)

[Claims for Utility Model Registration] A case with a rectangular slide hole formed on the top surface from which a lever of a sliding body projects, and a board with conductor and resistor patterns of electronic components formed on the top surface and attached to the bottom end of the case. , a base that is located between the board and the case and has a slider on its lower surface that makes sliding contact with the conductor and resistor pattern of the board, and a lever that extends upward from the base and projects from the slide hole of the case. A sliding electronic component comprising a sliding body, wherein the case is made of a transparent material, and a through hole is formed in the base of the sliding body to pass through the base in the longitudinal direction of the slide hole of the case, A rectangular shielding plate having a size equal to or larger than the size of the slide hole is passed through the through hole and both ends thereof are fixed to protrusions provided on the back surface of the case so as to cover the slide hole. Substantially the entire surface of the surface other than the slide hole portion is covered with a non-light-transmitting member, and is located near both ends of the slide hole portion in the longitudinal direction inside the case and between the shielding plate and the non-light-transparent member. A slide-type electronic component characterized in that a light-emitting element is arranged on the inner surface of a slide hole at a position that guides light in a straight line.