JPH03295732A - Passing mechanism of headlight device for vehicle - Google Patents

Abstract

PURPOSE:To extend the lift of bulbs and various switches by lighting both a low-beam filament and a high-beam filament first, then turning off the low- beam filament immediately for the closing action of a passing switch. CONSTITUTION:When a lighting switch 19 and a dimmer switch 7 are operated, a headlight bulb 17 can be switched to either the high beam or the low beam. If a passing switch 8 is pushed under this condition, low-beam terminals 11a, 11b are kept excited first, hight-beam terminals 10a, 10b are excited by a high- beam exciting piece 15a, and a high-beam filament 17b is lighted. The low-beam terminals 11a, 11b are then cut off, and a low-beam filament 17a is turned off. When a switch main body 12 is rotated to the original nonoperating position, the low-beam filament 17a is lighted first, then the high-beam filament 17b is turned off in the opposite order to the above.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a passing mechanism for a vehicle headlamp device,
In particular, the present invention relates to an improvement in a passing switch that can avoid simultaneous lighting of a high beam filament and a low beam filament.

[Conventional technology]

A vehicle headlamp device includes a high beam filament and a low beam filament, and a changeover switch turns on one of them to switch the optical axis between the high beam and the low beam. Further, in a vehicle headlamp device, it is common to provide a passing switch that can immediately turn on the high beam filament whether the headlight is on or off.

[Problem that the invention seeks to solve]

However, in conventional headlight devices, when the low beam filament is turned on by the changeover switch, when the passing switch is closed, the high beam filament is also turned on while the low beam filament remains lit. Therefore, if a high beam filament and a low beam filament are provided in the same bulb, the bulb life will be shortened, and the current flowing through the various switches will increase, which may shorten the life of the various switches due to heat generation, etc. There is.

The present invention has been made to solve the above-mentioned conventional problems, and is a vehicle headlamp that can extend the bulb life and switch life by avoiding simultaneous lighting of the high beam filament and the low beam filament. The purpose is to provide a passing mechanism for the device.

[Means for solving problems]

The present invention provides a vehicle headlamp device having a high beam filament and a low beam filament, and in which either of the above filaments is turned on by a changeover switch, in which the high beam filament is turned on by closing the passing switch. The passing mechanism is configured to turn on the light, and when the passing switch is operated to close with the low beam filament turned on by the changeover switch, the passing switch turns on the high beam filament in the first and second periods, and then It is characterized by being configured to turn off the low beam filament during the period.

[Effect]

According to the passing mechanism according to the present invention, when the passing switch is closed in the daytime state in which none of the filaments are lit, only the high beam filament is lit as in the conventional case, and a normal passing operation is performed. On the other hand, when the passing switch is closed at night with the low beam filament turned on by the changeover switch, the high beam filament is first turned on, and then the low beam filament is immediately turned off.

As described above, in the present invention, the high beam filament and the low beam filament do not continue to be lit simultaneously for a long time, and therefore the life of the bulb and various switches is extended. Furthermore, since the low beam filament is turned off after the high beam filament is turned on, there is no possibility that any filament is turned off, and there is no problem with lighting at night.

〔Example〕

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

1 to 7 are diagrams for explaining a passing mechanism of a headlamp device for a motorcycle according to an embodiment of the present invention.

In FIG. 7 showing the arrangement of various switches, 1 is a steering handle, 2 is a lever holder attached to the left end of the handle l, and 3 is a clutch lever 14 pivotally supported by the holder 2. and a grip 4 of the steering handle 1. A switch case 5 is attached between the holders 2. This switch case 5 includes a turn switch 4P6 that turns on the turn signal. A daymer switch (changeover switch) 7 for switching between high beam and low beam and a passing switch 8 for performing a passing operation are installed. Further, a lighting switch 19 (see FIG. 6) for turning on or off the headlight is attached to a switch case (not shown) provided on the right side of the handle 1.

In FIGS. 1 to 3 showing the passing switch 8, the passing switch 8 mainly includes a switch box 9 mounted inside the opening 5a of the switch case 5, and a high beam terminal plate fixed to the inner surface of the switch box 9. 10. A low beam terminal plate 11 and a switch body 1 swingably disposed within the switch box 9
It is composed of 2.

The high beam terminal plate 10 and the low beam terminal plate 11 each have a pair of high beam terminals fOa and 1.
0b, low beam terminals 11a, and Ilb are spaced apart from each other by a predetermined distance and on the inner surface of each plate.

and are buried flush with the outer surface, and lead wires 13m and 13b are connected to the outer end surface of each terminal.

The switch main body 12 is pivotally supported by a support pin 9a formed in the switch box 9 so as to be freely swingable. A moderation mechanism 14 is provided near the pivot of the switch body 12 to hold the switch body 12 in a non-operating position. This moderation mechanism 14 is configured to push a steel ball 14m into a holding hole 12a recessed in the switch body 12 using a biasing spring 14b.
When the switch body 12 is in the non-operating position, the steel ball 14$1 is locked in the locking hole 9C formed in the switch box 9. . Further, a biasing spring 16 is disposed between the lower end of the switch body 12 and the switch box 9 for biasing the switch body 12 to the non-operating position.

Further, a storage recess 12b is provided on the side surface of the switch body 12 in a portion facing the high beam terminal and low beam terminal.
is recessed. A high beam conduction piece 15a or a low beam conduction piece 15b is retractably housed in the recess 12b, and a biasing spring 19 is biased outward.

Reference numeral 17 denotes a bulb of a headlamp device, and a high beam filament 17b and a low beam filament 17a are accommodated in the bulb 17, and the bulb 17 is energized by setting the daimer switch 7 to Hi, l, or o.

Next, the effects of this embodiment will be explained.

In the non-operating state of the passing switch 8 of this embodiment, the switch body 12 is urged to the outer non-operating position by the biasing spring 16, as shown in FIG. is held by a moderation mechanism 14. At this time, the low beam conduction piece 15b is connected to the low beam terminal 11a,
conduction between llb and high beam conduction piece tS.
a cuts off between the high beam terminals 10a and 10b (
The solid line s) in FIG. 6 indicates that the lighting switch 19. By operating the daimer switch 7, the headlight bulb 17 is set to high beam.

You can switch to either low beam or low beam.

When the lighting switch 19 is turned on and the daymer switch 7 is turned to Lo, the current from the buffer battery 18 is applied to the ON terminal of the lighting switch 19.

It is supplied to the low beam filament 17a via the low beam conduction piece 15b and the LO terminal of the daymer switch 7,
The headlight lights downward.

In this state, the switch body 1 of the passing switch 8
When the closing operation of pushing 2 inward is performed, as the fourth WJ rotates inward, first the high beam terminals 10a and 10b are brought into conduction by the high beam conduction piece 15m while the low beam terminal 118° 11b remains conductive. ), the high beam filament 17b also lights up. Then, while the high beam terminals 10a and 10b remain conductive, the low beam terminals 11a and llb are cut off, and the low beam filament 17a is turned off.

When the switch body 12 is released, the switch body 12 rotates to its original non-operating position. In this case, in the reverse order to the above, the low beam filament 17a lights up first, and then the high beam filament 17a lights up in this state.
b goes out.

As described above, in this embodiment, when the passing switch 8 is closed, both the high beam and the low beam are turned on for a very short time, and then only the high beam is turned on immediately thereafter. Therefore, the life of the bulb due to simultaneous lighting of both filaments,
This solves the problem of shortened switch life. Furthermore, in this case, there is no moment when both filaments go out at the same time, so there is no problem with the lighting function of the device.

〔Effect of the invention〕

As described above, according to the passing mechanism of the vehicle headlamp device according to the present invention, when the passing switch is closed in the low beam state, both the low beam filament and the high beam filament are first turned on, and then, Since the low beam filament is turned off immediately, it is possible to avoid simultaneous lighting of both filaments for a long period of time without causing a problem in the lighting function, and this has the effect of extending the life of the bulb and various switches.

[Brief explanation of drawings]

1 to 7 are diagrams for explaining a passing mechanism of a headlamp device for a motorcycle according to an embodiment of the present invention, and FIG. 1 is a sectional view taken along line I-I in FIG. Figure 2 is the first
3 is an enlarged sectional view of the low beam terminal portion, and FIG. 4 is a sectional view taken along the line ■-■ in the figure. FIG. 5 is a sectional view for explaining the operation, FIG. 6 is an electric circuit diagram, and FIG. 7 is a plan view showing the state in which the passing switch is installed. In the figure, 7 is a daymer switch (changeover switch), 8 is a passing switch (passing mechanism), and 12
17a is a low beam filament, and 17b is a high beam filament.

Claims (1)

[Claims] (1) In a vehicle headlamp device that has a high beam filament and a low beam filament and is configured to turn on either of the above filaments using a changeover switch, the high beam filament is turned on by closing the passing switch. The passing mechanism is configured to cause the passing switch to
When the passing switch is closed with the low beam filament turned on by the above changeover switch, the high beam filament is turned on in the first and second periods, and the low beam filament is turned off in the second period. The passing mechanism of the vehicle headlamp device is characterized by: