JPH0120205Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vehicle glove box lamp switch for illuminating the inside of a glove box in a vehicle.

An example of a conventional glove box lamp switch is the one shown in FIG. 1, which generally consists of a switch part A and a lamp socket part B. The switch part A includes a substantially cylindrical switch case 1 made of a metal material, a cap 2 having a mounting spring 2a crimped and fixed to an opening of the switch case 1, and a hole bored in the center of the cap 2. a push rod 3 loosely fitted and supported in the hole 2b, and a switch case 1 of the push rod 3;
It is composed of a guide pin 4 attached to the side end, a movable contact piece 5, and a spring 6 that always urges the push rod to the left. The lamp socket section B is composed of a socket case 7, a lamp 8, a holding fitting 9 that comes into contact with the base 8a of the lamp 8, and a spring 10 that constantly biases the lamp 8 in the right direction via the holding fitting 9. . The switch part A and the lamp socket part B have insulating members 11a, 11b, and 11c interposed at their respective ends, and are integrated by a crimping eyelet 12 made of a conductive material. Further, cords 13 and 14 are electrically connected and fixed to the switch case 1 and the socket case 7 by soldering, respectively.

The operation of the conventional glove box lamp switch for a vehicle having the above configuration will be described. When a glove box lid (not shown) is opened or closed, the push rod 3 is operated to control the lighting and extinguishing of the lamp 8. That is, when the lid of the glove box (not shown) is opened, the state shown in FIG. 1 is reached, and the electrical connection path includes the positive terminal of the power source (not shown), the cord 13, the socket case 7, the lamp 8, and the holding metal fitting 9. , spring 10, crimping eyelet 12, spring 6, movable contact piece 5, cap 2, cord 14,
A closed circuit is formed with the negative pole of the power source (not shown), and the lamp 8 is lit. When the glove box lid (not shown) is closed, the push rod 3
is pushed in, the movable contact piece 5 operates in conjunction with the push rod 3, the connection between the movable contact piece 5 and the cap 2 is severed, and the lamp 8 is turned off.

However, the above-mentioned conventional glove box lamp switch for a vehicle has a large number of component parts and a complicated structure, resulting in an increase in assembly man-hours and parts cost. In addition, there were many conductive parts when energized, in other words, there were many contact points, and a voltage drop occurred due to the contact resistance of each contact point, resulting in a reduction in performance such as insufficient lamp illuminance. .

The present invention was developed by focusing on the above-mentioned conventional problems, and by reducing the number of component parts and integrating the switch part and the lamp socket part with a detachable locking means, it reduces the number of assembly steps. It is an object of the present invention to provide a glove box lamp switch for a vehicle with reduction and good performance.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a glove box lamp switch for a vehicle according to the present invention will be described below with reference to FIGS. 2 and 3.

First, the switch section a will be explained.

Reference numeral 21 denotes a switch case made of a resin material and having a substantially cylindrical shape. One end of the switch case 21 has a flange 21a, and the center of the flange 21a has a fixing member bent into a U-shape. Contact piece 22
is fixed. The fixed contact piece 22 has a hole 22a in the center thereof into which a push rod 23 (to be described later) is inserted, the outer peripheral side of the hole 22a on the switch case 21 side becomes a connection part 22b, and the bent one side becomes a terminal part. 22c, and the terminal portion 22c is exposed to the outside of the switch case 21. The cord 14 is soldered to the terminal portion 22c.
is connected. Also, on the side of the switch case 21, elastic claws 21b for attachment and holes 21c for assembly are provided.
are provided in appropriate numbers. The switch case 21
Inside, there is a movable contact piece 2 having a plurality of contact parts 24a.
4 is provided, and the push rod 23 is connected to the hole 22 of the fixed contact piece 22.
The operation part 23a and the support part 23b are loosely fitted to the part a.
It consists of

Next, the lamp socket part b will be explained.

Reference numeral 25 designates a lamp socket case made of resin material, and a wedge base lamp 28 is mounted on one side of the lamp socket case.
A socket hole 25a is provided for connection and attachment. Connecting pieces 26 and 27 having holder parts 26a and 27a for connecting and holding terminals 28a and 28b of the wedge base lamp 28, respectively, are provided in the socket hole 25a. Also,
The connecting piece 26 has a spring receiving part 26b, and the connecting piece 27 has a terminal part 27b. A guide portion 25b is provided at the center of the other side of the lamp socket case 25. The guide portion 25b has a guide hole 25b' into which the holding portion 23b of the switch knob 23 is loosely fitted. An appropriate number of claws 25c are provided on the outside of the lamp socket case 25 to engage with holes 21c formed in the switch case 21.

The switch part a and the lamp socket part b having the above-described structure are assembled by interposing the spring 29 between the movable contact piece 24 and the spring receiving part 26b of the connecting piece 26. That is, the switch part a and the lamp socket part b constitute the vehicle glove box lamp switch by engaging the hole 21c of the switch part a and the claw 25c of the lamp socket part b, which are the locking means.

Next, the action will be explained.

In the glove box lamp switch, a push rod 23 is activated by opening and closing a glove box lid (not shown), and controls turning on and off of the wedge base lamp 28. The state shown in FIG. 2 is when the lid (not shown) is opened. The electrical connection path includes the positive pole of the power source (not shown), the cord 13, the connecting piece 27, the wedge base lamp 28, the connecting piece 26, the spring 29,
A closed circuit consisting of the movable contact piece 24, the fixed contact piece 22, the cord 14, and the negative pole of the power source (not shown) is constructed, and the wedge base lamp 28 is lit. When the lid (not shown) is closed, the push rod 23 is pushed in, the fixed contact piece 22 and the movable contact piece 24 are disconnected, and the wedge base lamp 28 is turned off.

Since the electrical connection between the switch part a and the lamp socket part b is made by only a single spring 29, there are few electrical connection points by contact.
Overall, the contact resistance is lower than before. The spring 29 also has the function of applying an operating load to the push rod 23.

When assembling the switch part a and the lamp socket part b, it is possible to assemble the switch part a and the lamp socket part b by using detachable locking means, so-called one-touch assembly, without using special tools or the like.

The glove box lamp switch according to the present invention having the above-mentioned configuration and operation has the following effects.

That is, the number of parts is reduced compared to the conventional glove box lamp switch for vehicles, and the switch part and the lamp socket part can be assembled using detachable locking means, so that the number of assembly steps can be reduced.

In addition, since the switch part and the lamp socket part are electrically connected by a single spring, there are fewer contact points and the overall contact resistance is lower, eliminating problems such as a drop in lamp illuminance and ensuring stable performance. We can provide a good globe lamp box lamp switch.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing a conventional glove box lamp switch, FIG. 2 is a sectional view showing an embodiment of the glove box lamp switch according to the present invention, and FIG. 3 is an exploded perspective view of FIG. A, a... Switch part, B, b... Lamp socket part, 21... Switch case, 21c...
Hole, 22...Fixed contact piece, 23...Push rod, 24...Movable contact piece, 25...Lamp socket case, 25c...Claw, 26, 27...Connection piece,
28... Wedge base lamp, 29... Spring.

Claims (1)

[Scope of utility model registration request] A switch part that is turned ON and OFF by the opening and closing operation of a glove box lid in a vehicle, and consists of a switch case, a fixed contact piece inserted into the switch case, and a movable contact piece fixed to a push rod; A lamp socket case, along with holding a lamp to illuminate the
A glove box lamp switch for a vehicle that is integrated with a lamp socket portion consisting of a lamp socket portion and a connecting piece inserted into the lamp socket case,
1. A glove box lamp switch for a vehicle, characterized in that the switch portion and the lamp socket portion are integrally constructed by a removable locking means.