JPH0765672A - Light source-attached switch for knob illumination - Google Patents

Abstract

PURPOSE:To provide a light source-attached switch for knob illumination by which shows the switch operation without enlarging the size of the switch. CONSTITUTION:An illumination displaying part 1a1 and operation state displaying parts 1a2, 1a3 are formed on the upper face of an operation knob 1 which is supported in a case 2 in the way it can swing freely. Fixed contactors 6d1-6d3 matching a movable contactor 11 of a movable board 9 to form an electric circuit are installed in an electrode board 6 wherein the movable board 9 is driven by an operational rod 1b of the operational knob 1. Supporting parts 6e1, 6e2 are placed out of the area where the movable board moves in the polar board and while being supported by the supporting parts 6e1, 6e2, a printed substrate 8a is set above the movable board. Three light sources 8b1-8b3 which correspond to the respective displaying parts are mounted on the printed substrate and they are connected with the polar board through the supporting parts to turn on light. Partitioned chambers 2b1-2b3 where light is emitted while being prevented from leaking except each corresponding displaying part are formed in the case.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switch with a light source for illuminating a knob, and more particularly to illuminating a seesaw-type operation knob which can be used in many applications in an automobile installed in a dark place without night illumination. The present invention relates to a switch with a light source for knob lighting, which is provided with a light source that makes it easy to recognize the position.

[0002]

2. Description of the Related Art Conventionally, in this type of switch, various illumination structures have been studied in order to secure sufficient illuminance in the illumination display portion of the seesaw type operation knob.
-37728. In the proposed switch, as shown in FIGS. 6 to 8, the knob 1 having the illumination display portion 1a is pivotally supported by the case 2. A knob plate 3 with a steel ball 4 pressed onto the knob 1
Has been inserted. A spring 5 is inserted in the blind hole 2a formed in the case 2. The pole plate 6 fitted in the lower part of the case 2 is provided with a mounting portion 6a for mounting the lamp socket 7 in the center, a connector portion 6b on the lower surface, and fixed contacts (not shown) on the upper surface. It is provided. The lamp socket 7 is vertically long, and the lamp 8 is arranged below the illumination display portion 1a of the knob 1.

The movable platen 9, to which the movable contact pieces 10 and 11 are fixedly attached to the bottom surface, is operated by operating the knob 1 so that the polar plate 6
Slide on. The movable platen 9 is provided with a hole 9a that is loosely fitted in the mounting portion 6a that projects in the center of the pole plate 6. Hole 9
“A” has a rectangular shape so that the movable platen 9 can be moved in the X and Y directions of the arrow. The movable platen 9 is provided with a connecting portion 9b that engages with the operating rod 1b of the knob 1.

In the above structure, when the knob 1 is pressed, the operating rod 1b is swung, the movable platen 9 is linearly slid in the Y direction or the X direction, and the switch is turned on. The lamp 8 lights up when a lighting switch or the like (not shown) for night illumination is turned on, and the lighting display unit 1a of the knob 1 is turned on.
Illuminate.

In the above-described switch, the lamp socket 7 is arranged in the central portion of the pole board 6 and the movable board 9 is provided with the hole 9a through which the lamp socket 7 is inserted.
Sufficient illuminance can be obtained on the knob illumination display unit 1a.

[0006]

However, in the above-mentioned conventional switch with a light source for knob lighting, since there is no display other than the display showing the position of the operating knob, the operating condition of the switch, that is, the operation of the knob, The movable platen 9 is in the X direction,
There was a problem that it was not possible to know in which direction the Y direction was moved.

Therefore, it is conceivable to incorporate a light source that indicates the operating status into the above-mentioned conventional switch. There is a problem that the size of the entire switch becomes large because the size of the switch must be increased.

Therefore, in view of the above-mentioned conventional problems, an object of the present invention is to provide a switch with a light source for knob illumination, which can notify the operating state of the switch without increasing the size. There is.

[0009]

In order to achieve the above object, a switch with a light source for knob illumination, which is made according to the present invention, has an illumination display section and an operation status display section made of a translucent material in the center of the upper surface and both sides thereof. Each of them is provided with an operating rod integrally formed on one side wall of the central portion, and an operating knob having a moderation ridge formed on the lower surface of the other side wall facing the operating knob, and driven by engaging with the operating rod of the operating knob. A movable plate equipped with a movable contact piece, a pole plate having a fixed contact piece that forms an electric circuit corresponding to the movable contact piece of the movable plate, and the operation knob swingably supported. A case provided with an elastic contact means that cooperates with the moderation mountain to form a moderation mechanism; and an upper part of the movable plate supported by a support piece standing on the pole plate outside the moving range of the movable plate. Are arranged in the lighting display section and the operation status display section A printed circuit board on which three light sources corresponding to each other are mounted, and a compartment for preventing light from the light sources from leaking to other than the corresponding display portion is formed in the case, and the power supply for turning on the light source is supplied to the support piece. It is characterized in that the electrode board and the printed circuit board are electrically connected via the.

[0010]

With the above construction, the illumination display section and the operation status display section made of a translucent material are provided at the center of the upper surface of the operation knob swingably supported by the case and on both sides of the operation knob. A fixed contact piece that forms an electric circuit corresponding to the movable contact piece equipped on the movable plate that is engaged and driven is mounted on the pole plate, and a support piece is set up on this pole plate outside the movable range of the movable plate. The printed circuit board is arranged above the movable plate while being supported by this support piece. Then, three light sources respectively corresponding to the illumination display section and the operation status display section are mounted on the printed circuit board, and the pole board and the printed circuit board are electrically connected through the support pieces so that the light source is turned on. ing. Moreover, a compartment is formed in the case to prevent light from the light source from leaking except the corresponding display portion. Therefore,
When the operation knob is operated, the light source according to the operation direction is turned on, and the operation state display unit corresponding to the turned-on light source is caused to display the operation state of the switch.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 5 show an embodiment of a switch with a light source for knob lighting according to the present invention, and parts corresponding to the conventional switches described above with reference to FIGS. 6 to 8 are given the same reference numerals.

In the figure, the operation knob 1 is provided with operation status display portions 1a ₂ and 1a ₃ on both sides of an illumination display portion 1a _{1 at} the center of the surface thereof, and a light guide is fitted into each display portion. . Characters or pictograms according to the operation function are attached to the surface of the light guide body as desired.

An upper surface of the case 2 is opened so that the operation knob 1 can be mounted on the case 2, and a casing surrounding the periphery is formed on the lower side. A lower end surface of the case 2 is opened so that the pole board 6 can be mounted. Further, a partition surface is formed at a predetermined depth in the opening for mounting the operation knob 1, and a peripheral wall 2b that enters the inside of the operation knob 1 is erected on the periphery on the end surface side on the inner peripheral side thereof. ing. Peripheral wall 2b is partitioned by partition walls, lighting display unit 1a _1, the three compartments 2b ₁ ～2B ₃ corresponding respectively to the operating status display unit 1a ₂ and 1a ₃ are formed.
Each compartment is opened so as to communicate with the inside of the case.

A shaft hole 2c for supporting the support shaft 1c of the operation knob 1 is formed at a predetermined position on the wall surface on both sides of the case 2. A support shaft 1c is integrally formed on the side wall of the central portion of the operation knob 1 so as to project symmetrically to each other. Furthermore, the side wall having one of the support shafts is extended further downward,
A moderation crest 1d is integrally formed on the lower end surface thereof. The moderation ridge 1d constitutes a moderation device by pressing a steel ball 4 mounted in a hole 2a formed in a partition surface on one side of the case 2 into pressure contact.

Further, in the vicinity of the inner side of the side wall having the other support shaft 1c, an operating rod 1b inserted into the case 2 along the inner wall surface of the wall forming the opening of the case 2 is provided.
It projects downward and is integrally formed. At the tip of the operating rod 1b, a small circular plate portion is formed which forms an arc in the swinging direction of the knob 1, and a groove of a movable plate 9 mounted slidably in a predetermined direction of the pole plate 6 in the case 2. It is loosely fitted and engaged with the connecting portion 9b. That is, the movable disk 9 is slid by a predetermined distance by the small disk portion of the operating rod 1b which is integrally rocked by the rocking operation of the operation knob 1.

The movable platen 9 is guided in a predetermined direction by a pair of guide ribs 6c formed on the upper surface of the pole plate 6, and a movable contact piece 11 is fixed to the fixed contact piece 6c of the pole plate 6 on the lower surface side thereof. It is installed to form the electric circuit of. Movable contact piece 11
Has a U-shape, and both ends of the hole 9 are formed in the movable platen 9.
The springs 11a housed in the holes 9d of the movable platen 9 are urged in the direction in which they are elastically contacted with the fixed contact pieces 6d while being inserted into and attached to the c ₁ and 9c _{2 so} that they can come in and out within a certain range. ing. Contacting the movable contact piece 11 of three stationary contact piece 6d ₁ ~6d ₃ projecting central portion two contact 11b which is formed of the pole board 6 side at a predetermined pressure, or separable are possible.

The pole plate 6 is provided on the upper surface between the guide ribs 6c,
Movable contact piece 11 and are embedded three stationary contact piece 6d ₁ ~6d ₃ for forming a predetermined electric circuits corresponding, it is attached to the opening of the lower end surface of the case 2. Fixed contact piece 6d ₁
Each of ~ 6d ₃ is arranged so that one end thereof is provided on the inner surface of the pole plate 6 so as to form a predetermined electric circuit corresponding to the movable contact piece 11, and the other end is formed on the lower surface of the pole plate 6. It is embedded in the connector portion 6b so as to project as a connection terminal.

Light source support pieces 6e ₁ and 6e ₂ facing each other in the moving direction of the movable board 9 are erected on the upper surface of the pole board 6, and light source prints are formed on the upper end surfaces of the light source support pieces 6e ₁ and 6e _2. The printed board 8 for the light source is fixed to the board 8a.
A space in which the movable platen 9 can move is formed on the lower surface side of a. The upper surface of the printed circuit board 8a at a position corresponding to the compartment 2b ₁ ~2b ₃ formed in the case 2, LED8b _1, the LED8b ₂ and 8b ₃ the wiring pattern is an operation display light source is an illuminating light source It is attached by soldering or the like, and is provided so that the entire surface of the corresponding display portion can be irradiated with the light generated by lighting of each LED.

The wiring pattern of the light source PCB 8a is an end electrically connected to the light source supporting member 6e ₁ of and embedded in 6e ₂ present 4 protrudes on the upper surface of power supply terminals 8c ₁ ~8c _4, these The other end of the power supply terminal is projected as a connection terminal into the connector portion 6b formed on the lower surface of the pole board 6.

In summary, the switch is the operation knob 1,
Case 2, LED8b₁~ 8b₃Print base equipped with
The plate 8a, the movable platen 9 and the pole plate 6 are generally constituted.
It The operation knob 1 includes an illumination display unit 1 made of a translucent material.
a₁And operation display section 1a₂, 1a ₃Are integrally formed
It A support shaft 1c is provided on both side walls and extends downward.
Operation for engaging the moderation ridge 1d on one side and the movable platen 9 on the other side
The rods 9 are respectively projected. Case 2 has a knob on the top
1 can be installed in the opening 10 and the moderation ridge 1d of the knob 1 inside
Ball 4 engaging with, and a spring that biases this ball
2a for accommodating the gear 5 and a slide through which the operating rod 1b penetrates.
2a₁And compartment 2b in the center₁~ 2b₃And downwards allowed
Hole 2 for accommodating the movable plate 9 and the polar plate 6 and for locking the polar plate on the side wall
d and the lock arm 2e.

A movable contact piece 11 for switching the switch and a spooling 11a are mounted on the movable platen 9. The pole base 6 is formed integrally with the connector terminals of the stationary contact piece 6d ₁ ~6d ₃ and the external connection approaching and moving away from the movable contact piece 11, protruding from both sides of the power source support piece 6e ₁ and 6e ₂ feed terminals 8c ₁ ~ 8c ₄
The wiring pattern on the printed circuit board 8 is soldered. Switch changeover switch consisting of the operation knob by the pressing operation of the operation knob 1 is swung movable platen 9 is slid on the pole board 6 and the movable contact piece 11 stationary contact piece 6d ₁ ~6d ₃ Metropolitan Opens and closes for switching. Light emitted from the LEDs 8b _{1 to} 8b ₃ on the printed circuit board 8 is divided into compartments 2b _{1 to} 2b.
Go through ₃ to illuminate the illumination display or operating status display of the knob.

The movable contact piece 11 and the fixed contact piece 6d _1-
6d ₃ , LEDs 8b _{1 to} 8b ₃ , power supply terminals 8c _{1 to} 8c
Fig. 5 shows the electric circuit configuration such as ₄ .
The fixed contact pieces 6d _{1 to} 6d ₃ and the power supply terminals 8c _{1 to} 8c ₄ are
The connection terminals T _{1 to} T _{7 are} extended to the inside of the connector portion 6b.
Has become. The LE that illuminates the illumination display unit 1a ₁
D8b ₁ is the vehicle lighting switch during the night is turned on at all times the voltage between the connection terminals T ₄ and T ₆ are turned on is applied later. Therefore, this illumination display unit 1
The display of a ₁ is displayed brightly, and even if the surroundings are dark, the position of the switch can be easily known.

Further, in this state, when the operation knob 1 is pushed and swung in the clockwise direction in FIG. 2, the movable contact piece 11 is moved between the fixed contact pieces 6d ₁ and 6d ₂ to be connected. A short circuit is provided between the terminals T ₁ and T ₂ , and accordingly, a separately provided circuit (not shown) is connected to the connection terminals T ₄ and T _7.
A voltage is applied between them to turn on the LED 8b ₃ . Therefore, when the LED 8b ₃ is turned on, the operation status display unit 1
The display of a ₃ is displayed brightly, and the operating status of the switch can be easily known even when the surroundings are dark. When the opposite side is pressed, the movable contact piece 11 moves the fixed contact pieces 6d ₁ and 6d.
_It is moved between ₃ and short-circuits between the connection terminals T ₁ and T ₃ , and in response to this, a voltage is applied between the connection terminals T ₄ and T ₅ and L
The ED 8b ₂ is turned on, and the display of the operation status display portion 1a ₂ is made bright so that it can be seen even if the operation state of the switch is dark.

[0024]

As described above, according to the present invention, the operation knob is provided with the illumination display section and the operation status display section, and the three light sources corresponding to the respective display sections are provided. Since it is mounted on a printed circuit board that is supported by a support piece that is erected on the pole board outside the range of movement and that is arranged above the movable board, without making the switch large,
In addition to night lighting, a switch is provided that can display the operating status of the switch. In addition, since the three light sources are partitioned into the case, the light from the light sources is not leaked to other than the corresponding display portion, and the light sources are arranged at the positions corresponding to the respective display portions, so that the light source is large and large. There is an effect that sufficient display illuminance can be obtained without using the above light source.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of a switch with a light source for knob lighting according to the present invention.

FIG. 2 is a cross-sectional view showing an embodiment of a switch with a light source for knob lighting according to the present invention.

FIG. 3 is a vertical sectional view showing an embodiment of a switch with a light source for knob illumination according to the present invention.

FIG. 4 is a top view showing an example of a switch with a light source for knob illumination according to the present invention.

FIG. 5 is an electric circuit diagram of an embodiment of a switch with a light source for knob illumination according to the present invention.

FIG. 6 is an exploded perspective view of an example of a conventional switch with a light source for knob lighting.

FIG. 7 is a vertical cross-sectional view showing an example of a conventional switch with a light source for knob illumination.

FIG. 8 is a cross-sectional view showing one example of a conventional switch with a light source for knob illumination.

[Explanation of symbols]

1 Operation Knob 1a ₁ Illumination Display Section 1a ₂ , 1a ₃ Operation Status Display Section 1b Operation Rod 1d Moderation Mountain 2 Case 2b _{1 to} 2b ₂ Compartment Chamber 4, 5 Elastic Contact Means (Ball, Spring) 6 Poles 6d _{1 to} 6d ₃ stationary contact piece 6e _1, 6e ₂ supporting piece 8a printed board 8b ₁ ~8b ₃ source (LED) 9 movable platen 11 movable strips

Claims (1)

[Claims] 1. An illumination display section and an operation status display section made of a translucent material are provided in the center of the upper surface and both sides thereof, and an operating rod is integrally formed on one side wall of the central section, and the other of the opposing ones is formed. An operating knob having a moderation peak formed on the lower surface of the side wall, a movable plate equipped with a movable contact piece that is driven by engaging with an operating rod of the operation knob, and an electric plate corresponding to the movable contact piece of the movable plate. A pole board equipped with a fixed contact piece forming a circuit, and a case provided with an elastic contact means for swingably supporting the operation knob and configuring a moderation mechanism in cooperation with the moderation crest, Outside the movable range of the movable plate, three light sources, which are supported by a supporting piece erected on the pole plate and arranged above the movable plate and respectively correspond to the illumination display section and the operation status display section, are placed. A printed circuit board, and the light source in the case It is characterized in that a compartment for preventing the light from leaking is formed except for the corresponding display portion, and the power supply for turning on the light source is electrically connected to the pole board and the printed board through the supporting piece. Switch with light source for knob lighting.