JP2868305B2 - Lighting device for slide knob - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an illumination device for a slide knob.

(Prior Art and Problems to be Solved by the Invention) Conventionally, in a lighting device of a slide knob provided on a front panel of an automobile, by operating a knob, a brush provided on a slider integrated with the knob is used as a base. LED provided on the knob by sliding contact with the fixed printed circuit board
This knob is illuminated by turning on.

However, this requires an LED, a brush, a contact, and the like, so that the number of parts is large, it is difficult and expensive to manufacture, and there is a risk of poor contact.

In addition, the direction of irradiation of the LED light is random, and may be scattered and reflected on a windshield or the like to obstruct the view.

Therefore, the present invention can reduce the number of parts,
It is an object of the present invention to provide a lighting device for a slide knob that can reliably emit light in a predetermined direction.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a lighting device for a slide knob, a light source provided inside a panel, a slider capable of reciprocating in a predetermined direction with respect to a base, A light-transmitting member fixed to the slider, the light-transmitting member including two light-receiving portions for receiving light from the light source, and one light-emitting portion for respectively projecting light received by the light-receiving portions in different directions; And an operation knob having a display section through which light from the light projecting section of the light transmitting member is transmitted.

(Embodiment) Next, an embodiment of an illumination device for a slide knob according to the present invention will be described with reference to FIG. 1 to FIG.

FIG. 1 shows a heater control device of an automobile equipped with this lighting device. A case 1 has a plurality of push switch bodies 2 for switching various modes, and a slider 3 of a control lever for switching temperature and air flow. Is housed.

Each of the switch bodies 2 is attached to a printed circuit board 4 fixed at a predetermined position in the case 1. The push knobs 6 for driving these switch bodies 2 project upward from a front panel 5 formed on the front surface of the case 1, and the slide knobs 7 for the sliders 3 project downward from the front panel 5. It is arranged. further,
A display section (temperature and air volume) 8 is provided between the push knob 6 and each slide knob 7.

Each of the push knobs 6 has a box shape as shown in FIG. 1, and has an on / off display section 11 at an upper portion of a front surface protruding from the front panel 5 and a switching mode display section at a lower portion.
12 are formed respectively.

The on / off display section 11 indicates whether the push knob 6 is in an on state where the push knob 6 is pressed or an off state where the push knob 6 is protruding. The switching mode display section 12 displays the switching mode of the heater control device obtained when the push knob 6 is depressed.

An on-off display is provided inside the push knob 6.
A space opening from behind 11 to the right in FIG.
13 are formed. In this space 13, a lamp 14 provided at the tip of the printed circuit board 4 is located. The lamp 14 is turned on when the push knob 6 is depressed to illuminate the on / off display unit 11.

When the switch body 2 is driven by the push knob 6, the rod 15 is brought into contact with the right end face of the push knob 6.
Done through. That is, the push operation of the push knob 6 turns on a switch (not shown) in the switch main body 2 via the rod 15, so that the lamp 14 is turned on and the operated object (not shown) is driven. Has become.

The slide knob 7 has a display portion 20 on the front surface (left direction in FIG. 1) at the center and a concave portion 21 on the back surface. This recess
The distal end of the slider 3 is fitted to 21.

The slider 3 includes a housing 25 in which a third lens 50 described below is integrally housed, a gripper 26 slidably attached to the rail 16 of the case 1, and a control lever 36.
And an engaging projection 37 for operating the. The accommodation section
At the center of 25, a tubular ball receiving portion 27 protrudes, and accommodates a ball 29 urged to project upward by a spring. The ball 29 is disengaged from a plurality of grooves (not shown) provided in the case 1 with the movement of the slider 3, and positions the slide knob 7. in this way,
Since the spring 28 and the ball 29 are disposed between the light receiving portions 52, 52, that is, at the center of the slider 3, the balance when the slider 3 slides is improved, and the slide knob 7
Can be operated smoothly.

The lighting device of the display unit 12 of the push knob 6 is
Lamp 17, light source, first lens 30, and second lens 40
As a result, the display section 20 of the slide knob 7
7, the first lens 30 and the third lens 50 respectively.

The lamp 17 is attached to the printed circuit board 4 and is turned on when a light switch (not shown) is turned on.

The first lens 30 is disposed on the back side of the display unit 8 of the front panel 5, and is made of a light-transmitting plate having a shape shown in FIG. The first lens 30 has concave portions 31 at two positions on the left and right sides of the upper surface (one is not shown), and the tip of the lamp 17 is located in the concave portion 31.

In front of each recess 31 (upward in FIG. 3),
Cut positions 32 are provided at positions corresponding to the push knobs 6, respectively.
A first reflecting surface 33 that is inclined at an angle is formed.

In front of the notch 32, a notch 34 is provided from the upper surface of the first lens 30 along the sliding direction of the slider 3, and the length of the notch 34 is substantially equal to that of the slider. It has a second reflecting surface 35 which is the same as the sliding dimension of No. 3 and is inclined at 45 degrees. The second lens 40 is made of a light transmitting material, and is integrated inside the lower part of the push knob 6. And
In FIG. 1, the left end portion is in contact with the back surface of the display section 12, and the right end portion is formed with a third reflection surface 41 having an inclination of approximately 45 degrees. An opening 6a is provided on the lower surface of the push knob 6, so that the third reflection surface 41 can receive the reflected light from the first reflection surface 33 of the first lens 30.

As shown in FIG. 2, the third lens 50 is made of a substantially Y-shaped translucent material, and has a light projecting portion 51 integrated with the distal end of the slider 3 and a substantially V-shaped two light projecting portion. Dividing light receiving part
52,52. The light receiving section 52 extends upward in a stepwise manner, and has a front end face facing upward to receive light from the second reflecting surface 35 of the cut groove 34.

In the illumination device of the slide knob having the above-described configuration, the light emitted from the lamp 17 passes through the first lens 30 and a part of the light passing below the first lens 30 is transmitted by the first reflection surface 33 to the second lens 40. Irradiates the third reflecting surface 41 of the
The light reflected by the light transmitting through the second lens 40 illuminates the switching mode display section 12 of the push knob 6. Light passing through the lower part of the first lens 30 other than the first reflection surface 33 goes straight as it is and illuminates the display unit 8.

On the other hand, all the light passing through the upper part of the first lens 30 is reflected downward in FIG. 1 through the second reflecting surface 35 of the cut groove 34, so that the light is reflected no matter where the slider 3 is. 3 lenses 50
The light from the lamp 17 can be received by the light receiving units 52, 52. The light received by each of the light receiving sections 52, 52 travels on a separate path, and when illuminated from the light projecting section 51, is not scattered by the slide knob 7 but is scattered by the display section 20 in two directions.
To illuminate.

(Effects of the Invention) As is clear from the above description, in the illumination device for a slide knob according to the present invention, light from a light source for illuminating the push knob is received from two light receiving units constituting the light transmitting member, Irradiation is performed in two different directions from one light emitting unit.

Therefore, this light can be clearly confirmed from both the driver's seat and the passenger's seat. Further, since the light is not scattered and reflected on the windshield or the like, the visibility of the driver or the like is not hindered.

[Brief description of the drawings]

FIG. 1 is a sectional view of an illumination device for a slide knob according to the present invention, FIG. 2 is a perspective view of a slider portion of FIG. 1, and FIG. 3 is a front view of a light transmitting member. 1 ... case, 3 ... slider, 5 ... front panel, 7 ... slide knob, 17 ... lamp (light source), 30 ...
... First lens, 50 ... Third lens, 51 ... Light emitting unit, 52 ...
…Light receiving section.

Continuation of the front page (56) References JP-A-3-273952 (JP, A) JP-A-55-140877 (JP, A) JP-A-55-26581 (JP, U) JP-A-57-128541 (JP, A) , U) Japanese Utility Model Showa 60-30024 (JP, U) Japanese Utility Model Application Hei 4-43512 (JP, U) Japanese Utility Model Showa 55-2769 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB Name) B60Q 3/04 B60H 1/00 103

Claims (1)

(57) [Claims] 1. A light source provided inside a panel, a slider reciprocally movable in a predetermined direction with respect to a base, two light receiving portions fixed to the slider and receiving light from the light source, and a light receiving portion. A light transmitting member having one light projecting portion for projecting the received light in different directions; and a light transmitting member fixed to a tip of a slider protruding from the panel and transmitting light from the light projecting portion of the light transmitting member. An illumination device for a slide knob, comprising: an operation knob having a display unit.