JPH0535524Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to an aiming device for an automobile headlamp.

<Prior Art> When adjusting the aiming of an automobile headlamp, an aiming screw connected between a movable member (e.g., a reflector) and a fixed member (e.g., a lamp body) is moved by hand or with a tool such as a screwdriver. However, if the head of the aiming screw is located behind the headlight and there is not enough operating space behind the headlight, you may not be able to insert your hand or a tool such as a screwdriver. This means that you will not be able to adjust your aiming.

<Problems to be solved by the invention> The present invention was made in view of the above circumstances, and the head of the aiming screw is located behind the headlight, and there is no operation space behind the headlight. To provide an aiming device for a headlamp for an automobile whose structure is simple and allows the aiming adjustment operation to be easily performed by rotating an aiming screw with a screwdriver from the front of the headlamp when there is not enough room. It is something.

<Means for Solving the Problems> The aiming device of the present invention for an automobile headlamp which achieves the above object has an aiming screw screwed and connected to a nut fixed to a movable member side, and a head of the aiming screw. A spur gear is fixed to the part, a pinion gear pivotally attached to the fixed member side is meshed and connected to the spur gear, an operating rod is provided on the pinion gear to protrude toward the front of the headlight, and the head of the operating rod is connected to the pinion gear. The side is rotatably supported by an arm protruding from the fixed member side, an engagement hole is formed in the head of the operating rod for engaging the tip of the screwdriver, and the engagement hole and the above-mentioned engagement hole are formed on the fixed member side. The device is characterized in that an insertion opening for the driver is formed at a position facing each other and spaced apart from the engagement hole by a certain distance.

There are two types of methods for adjusting the optical axis of automobile headlights: a movable reflector type that moves the reflector relative to the light body, and a movable lamp unit type that moves the lamp unit relative to the vehicle body. Both are essentially the same, and in this specification, movable members such as reflecting mirrors and lamp units are referred to as movable members.
A member such as a lamp body or a vehicle body that supports the movable member is called a fixed member.

<Example> Hereinafter, an example of implementing the present invention will be described based on the drawings.

In the illustrated embodiment, a reflector 2 is a movable member with respect to a lamp body 1 which is a fixed member.
This is applied to a headlamp A of a movable reflector type which is swingably supported by one fulcrum member 3 and two aiming screws 4.

The aiming screw 4 is threadedly connected to a nut 6 fixed to the reflector 2 via a bracket 5.
The head 4a is rotatably projected rearward from the lamp body 1, and a spur gear 7 is fixed to the head 4a.

The spur gear 7 is fixed to the head 4a of the aiming screw 4 so as to rotate together with the aiming screw 4, and is meshed with a pinion gear 9 which is arranged in parallel with the same axial direction.

The pinion gear 9 has an operating rod 8 formed on its shaft core so as to protrude toward the front of the headlamp A.
It is rotatably pivoted to an arm 10 protruding from the rear and sideways, and is meshed and connected with a spur gear 7.
The operating rod 8 connects the headlight A from the shaft center of the pinion gear 9.
are formed to protrude toward the front of the same body, and
An engagement hole 12 for engaging the tip 11a of the driver 11 is formed in the head 8a.

The screwdriver 11 used may be a Phillips screwdriver or a flathead screwdriver, but the engagement hole 12 is formed in a Phillips or minus shape so as to engage with the tip 11a of the screwdriver 11 used.

In the figure, reference numeral 13 is an insertion port for introducing the driver 11 into the engagement hole 12 of the operating rod 8, and it is located at a position opposite to the engagement hole 12 of the operating rod 8 on the fixed member side of the lamp body 1. The driver 11 is formed at a constant interval from the engagement hole 12.
To serve as a guide when the pinion gear is engaged with the engagement hole 12 of the operating rod 8, and to serve as a support when rotating the pinion gear 9, thereby making aiming adjustment operations easier in general. You will be able to do it.

When adjusting the aiming of the headlight A, insert the screwdriver 11 from the front of the headlight A, and insert its tip 1 into the engagement hole 12 of the operating rod 8.
1a and rotate the driver 11.
Then, the pinion gear 9, which is the same as the operating rod 8, rotates, and along with this, the spur gear 7 rotates into the driver 11.
The aiming screw 4 also rotates in the same manner as the spur gear 7. Then, the nut 6 fixed to the reflecting mirror 2 moves forward or backward relative to the aiming screw 4 (in the direction of arrow P), and the aiming adjustment of the reflecting mirror 2 is performed.

Further, in the embodiment of the present invention, the front lens 14 constituting the headlamp A is molded from a resin material, and the garnish 15 is molded into the same body as the front lens 14. At this time, an air vent hole 17 is placed in the boundary recess 16 between the front lens 14 and the garnish 15.
are formed through the entire circumference of the front lens 14 at appropriate intervals. By forming the air bleed hole 17 through the hole 17, when coating the front lens 14 to the garnish 15 with a hard coat, no air pockets are generated in the boundary recess 16 between the front lens 14 and the garnish 15, resulting in a clean coating. becomes possible.

Further, the aiming device for an automobile headlamp shown in FIGS. 3 and 4 is designed so that aiming adjustment can be performed from the front of the headlamp A without using a gear. That is, the aiming screw 4 is rotatably connected across the nut 6 fixed to the bracket 5 of the reflector 2 and the front flange portion 1a of the lamp body 1, and the head 4a of the aiming screw 4 is connected to the front flange portion 1a of the lamp body 1. It is made to protrude from the front surface of the front flange portion 1a. Then, a window hole 18 is formed on the back surface of the lamp body 1 where the aiming device is located, and the window hole 18 is closed with a cover plate 19 through packing 20 in a waterproof manner. The cover plate 19 has one or two screws 21 and an engagement piece 19a formed protruding from the lower end of the cover plate 19, which is inserted into and engaged with an engagement part 22 formed at the lower part of the window hole 18 of the lamp body 1. It is twisted and fixed.

<Effects of the invention> Since the aiming device for the automobile headlamp of the present invention is constructed in this way, the head of the aiming screw is located behind the headlamp, and there is sufficient operation space behind the headlamp. If not, you can easily adjust the aiming by inserting a screwdriver from the front of the headlight and rotating the aiming screw.

Moreover, since the aiming screw is rotated by a screwdriver, the structure is simple and can be provided at low cost.

Therefore, the intended purpose can be achieved.

Furthermore, since the driver insertion opening is formed on the fixed member side in front of the headlight, the presence of the aiming device can be made less noticeable, and at the same time,
To be able to play the role of a guide when inserting and engaging a driver into the engagement hole of the operating rod head and as a support when rotating a pinion gear, and to make aiming adjustment operations easier overall. I can do it.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing an example of the implementation of the present invention;
The figure is an exploded perspective view of essential parts, FIG. 3 is a sectional view showing another embodiment, and FIG. 4 is an exploded perspective view of the same. In the figure, A is a headlight, 1 is a fixing member (light body), 2
is a movable member (reflector), 4 is an aiming screw,
4a is the head, 6 is the nut, 7 is the spur gear, 8 is the operating rod, 9 is the pinion gear, 11 is the driver,
12 is an engagement hole, and 13 is an insertion port.

Claims (1)

[Scope of utility model registration request] An aiming screw is screwed and connected to a nut fixed to the movable member side, a spur gear is fixed to the head of the aiming screw, a pinion gear pivotally attached to the fixed member side is meshed and connected to the spur gear, An operating rod is provided on the pinion gear to protrude toward the front of the headlight, and the head side of the operating rod is rotatably supported by an arm protruding from the fixed member side, and a driver is attached to the head of the operating rod. It is characterized by forming an engagement hole for engaging the tip, and forming an insertion opening for the screwdriver on the fixed member side at a position opposite to the engagement hole and spaced a certain distance from the engagement hole. Aiming device for automotive headlights.