JPS61220946A - Retractable headlamp - Google Patents

Abstract

PURPOSE:To easily set the lamp lens surface to the equal plane to the outer surface of a car body by releasing an optical-axis adjusting screw from the support in the projection state of a headlamp case, when the case is accommodated. CONSTITUTION:When a lamp 22 is put out, a headlamp case 2 is accommodated into a chassis 4, and a lamp housing 16 is position-regulated by a stopper 38 so that the lamp lens surface 221 is on the equal plane to the outer surface of the car body 4. When a motor 10 is operated to light the lamp 22, and a worm gear 14 is turned, the case 2 integrally formed with the gear 14 is turned in the projection direction. The slide part 28 of a support releasing means 26 is slided in the advance direction through the shift of the tappet 283 of the slide part 28 on the periphery of a cam 34, and the supporting position for an optical-axis adjusting screw 20 is shifted to a regular supporting surface 284, and the lamp 22 is set at the regular optical-axis position at the time of the completion of the projection turning drive of the case 2.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention is characterized in that the lamp is placed supine in a retracted state so that the lens surface of the lamp is along the outer surface of the vehicle body, and the lamp is erected in a protruding state to light the lamp. , relates to a type of tractable rad lamp generally called an exposed type.

(Prior Art) As a conventional exposed type glue tractor pull headlamp, those described in Japanese Patent Laid-Open No. 53-107044 and Japanese Utility Model Application No. 57-170337 are known.

These tractor-pull headlamps include a headlamp case that is rotatable relative to the vehicle body, a lamp housing that is swingable relative to the headlamp case, a lamp supported by the lamp housing, and the headlamp case. and an optical axis adjustment screw that is installed between the lamp housing and the lamp housing to adjust the optical axis of the lamp by adjusting the amount of swing of the lamp housing. It was supposed to be located on the surface.

(Problem to be Solved by the Invention) However, in such conventional tractor-pull headlamps, the position of the lamp relative to the headlamp case is not fixed at a position where a normal optical axis can be obtained when the headlamp case is in a protruding state. Therefore, when the headlamp case is stored, even if the lamp lens surface is designed to be flush with the outer surface of the vehicle body in the drawing, due to parts/assembly errors or variations in load distribution during the manufacturing process, However, when the lamp is retracted after adjusting its optical axis, there is a problem in that the lens surface of the lamp does not match the outer surface of the vehicle body.

Furthermore, if the lens surface of the lamp does not match the outer surface of the vehicle body when it is in the retracted state, it will not look good, and it will generate wind noise, causing noise. There has been a problem in that gaps are created, which can cause failures due to objects getting caught in them.

(Means for Solving the Problems) The present invention has been made for the purpose of solving the above-mentioned conventional problems. A headlamp case is provided so as to be rotatable from a retracted state to an extended protruding state, a driving means for rotationally driving the headlamp case is provided, and a lamp housing is provided so as to be swingable relative to the headlamp case. a lamp is supported by the lamp housing, an optical axis adjustment screw is provided which is screwed into the lamp housing and whose base end is supported by the headlamp case, and the lamp is placed supine in the retracted state of the headlamp case. , in a retractable headlamp in which the lamp is erected with the headlamp case in a protruding state.

The lamp housing is provided with a spring that urges the lamp housing in a direction to shorten the distance between the lamp housing and the headlamp case at a position where the optical axis adjustment screw is provided, and the spring is interlocked with the driving means and moves the headlamp. Provided in the headlamp case is a support release means for supporting a base end of the optical axis adjustment screw when the case is in a protruding state and releasing support for the base end of the optical axis adjustment screw when the headlamp case is in a retracted state; A stopper is provided for regulating the position of the lamp housing against the biasing force of the spring so that the lens surface of the lamp becomes flush with the outer surface of the vehicle body when the support of the optical axis adjustment screw is released by the support release means. I decided to set it up.

(Function) Therefore, when the headlamp case is in the protruding state where it is protruded from the vehicle body, by supporting the optical axis adjustment screw with the support release means on the headlamp case side, the normal optical axis position of the lamp can be adjusted with respect to the headlamp case. 1. Next, when the headlamp case is rotated in the storage direction by the drive means, the support release means is operated in conjunction with this, the support of the optical axis adjustment screw is released, and the lamp is released together with the lamp housing. After being swung and moved relative to the headlamp case in the biasing direction of the spring, the position can be restricted by a stopper so that it is flush with the outer surface of the vehicle body.

(Example) Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

First, the structure of the first embodiment shown in FIGS. 1 to 4 will be explained.

2 is a headlamp case, which is in a protruding state (Fig. 1) when it is stored in the vehicle body 4 (Fig. 2);
As shown in FIG. 3, the headlamp case 2 is rotatably mounted around a case rod 8 with respect to a bracket 6 provided on the vehicle body 4. , and covers both the left and right sides, the top surface, and the rear surface.

Incidentally, the case rod 8 is fixed to the bracket 6 so as not to rotate.

Reference numeral 10 denotes an electric motor as a driving means, which rotates the headlamp case 2. This electric motor 10 is attached to the bracket 6, and a worm 12 is provided on its rotating shaft 101. It is being

The worm 12 is engaged with a worm gear 14 which is fixed to the headlamp case 2 and rotatable with respect to the case rod 8, and the headlamp case 2 is rotated by the rotation of the electric motor IO. dynamically driven.

Reference numeral 16 denotes a lamp housing, which is swingably provided in the headlamp case 2. This lamp housing 16 is connected to the headlamp case via a ball joint 18 that can swing vertically, horizontally, and diagonally. It is supported by 2.

Reference numeral 20 denotes an optical axis adjustment screw, which is attached to the lamp housing 1.
6, and when the headlamp case 2 is in the protruding state (FIG. 1), the proximal end 20 is attached to the headlamp case 2.
1 is supported, and this optical axis adjustment screw 20 is
With the base end 201 supported by the headlamp case 2, by rotating it once to change the screwing position with the lamp housing 16, the lamp housing 16 can be attached to the headlamp case 2 with the pole joint 18 as a fulcrum. The optical axis of the lamp 22 supported by the lamp housing 16 can be adjusted.

Note that 221 is the lens surface of the lamp 22.

A spring 24 is provided in parallel with the optical axis adjustment screw 20, and biases the lamp housing 16 in a direction that shortens the distance between the lamp housing 16 and the headlamp case 2 at the position where the screw 20 is provided. It is something that makes you

Reference numeral 26 denotes a support release means which is interlocked with the electric motor 10 and is configured to support the base end 201 of the optical axis adjustment screw 20 when the headlamp case 2 is in the protruding state (FIG. 1) and to release the headlamp. The support for the optical axis adjustment screw 20 is released when the case 2 is in the stored state (FIG. 2). A slide portion 28 consisting of a bushing rod 282 and a tappet 283, a slide guide 30 and a bushing rod guide 32 attached to the headlamp case 2, a cam 34 fixed to the case rod 8, and a bushing rod guide 32. and the spring 3 provided between the tappet 283
It consists of 6 and.

The slide portion 2B is brought into contact with the cam 34 by the biasing force of the spring 36, and moves on the cam 34 in conjunction with the rotation of the headlamp case 2 toward the protruding side, and moves toward the slide guide 30. The headlamp case 2 is advanced along the bushing rod guide 32, and is retracted in conjunction with the day shift to the storage side of the headlamp case 2.

The slider 281 has a regular support surface 284 and an inclined surface 28.
5, when the headlamp case 2 is in the protruding state, the base end 201 of the optical axis adjustment screw 20 is supported by the regular support surface 284, and as the headlamp case 2 is rotated to retract, the base end 201 is supported. The surface moves toward the inclined surface 285.

Reference numeral 38 denotes a stopper, which is provided on the lamp housing 16 and restricts the position of the lamp housing 16 against the biasing force of the spring 24. This is the position where the lens surface 221 of the lamp 22 is flush with the outer surface of the vehicle body 4 (FIG. 2).

The stopper 38 has its tip abutted against the headlamp case 2 to regulate its position, and a hard cushioning material 40 is provided on the surface of the headlamp case 2 that comes into contact with the stopper 38 .

Next, the operation of the embodiment will be explained.

When the lamp 22 is turned off, the headlamp case 2 is attached to the vehicle body 4.
is stored in.

Lamp housing 1 with headlamp case 2 stored
The position of the lamp 6 is regulated by a stopper 38 so that the lens surface 221 of the lamp 2 is flush with the outer surface of the vehicle body 4.
Moreover, the slide portion 28 of the support release means 26 is in the retracted state, and the optical axis adjustment screw 20 is in the inclined surface 28 of the slider 281.
5 (Figure 2).

Next, when the electric motor 10 is operated to project the headlamp case 2 in order to light up the lamp 22 and provide headlight, the worm gear 14 is rotated and the headlamp case 2 is driven to rotate in the projecting direction.

At the same time, the tappet 283 of the slide part 28 of the support release means 26 is moved around the cam 34, the slide part 28 is slid in the advancing direction, and the position where the optical axis adjustment screw 20 is supported by the slider 281 is set to the normal support surface 284. It has been moved in the direction of 〈.

As the support position of the optical axis adjustment screw 20 moves, the lamp housing 16 is swung about the ball joint 18 in the direction of the normal optical axis position, causing the headlamp case 2 to protrude as shown in FIG. At the end of the rotation drive, the optical axis adjustment screw 20 is supported by the regular support surface 284 and the lamp 22
is located at the normal optical axis position.

In FIG. 1, a two-dot chain line a indicates the position of the lamp 22 with respect to the headlamp case 2 when the headlamp case is stored.

Thereafter, when storing the headlamp case 2, when the electric motor 10 is reversely rotated, the headlamp case 2 is rotated in the storing direction.
At the same time, the slide portion 28 of the support release means 26 is slid in the retraction direction.

When the slide portion 28 is retracted, the support position of the optical axis adjustment screw 20 by the slider 28 is moved from the regular support surface 284 to the inclined surface 285, and accordingly, the lamp housing 16 is moved by the biasing force of the spring 24. , the stopper 38 is swung until it comes into contact with the buffer material 40, and the stopper 3
8, the lens surface 221 of the lamp 22 is stored in a position flush with the outer surface of the vehicle body 2.

Therefore, the position of the lens surface 221 of the lamp 22 with respect to the headlamp case 2 is made different between when the headlamp case is stored and when the headlamp case is extended, so that the lens surface 221 and the outer surface of the vehicle body 4 are on the same surface when the headlamp case is stored. This allows the lamp 22 to have a regular optical axis when projected.

Next, a second embodiment shown in FIG. 5 will be described.

This embodiment is an example in which an abbreviated rotating member 42 is provided on the slide guide 30 as a part of the support release means 26.

Therefore, in conjunction with the rotation of the protruding side of the headlamp case 2, the pressing piece 421 of the rotating member 42 is pressed by the bushing rod 282 to rotate, and the supporting piece 422 supports the optical axis adjustment screw 20. I can do it.

Next, a third embodiment shown in FIG. 6 will be explained.

This embodiment is an example in which a bushing rod 282 and a rotating member 42 are connected by a link 46 via a pole joint 44.

Therefore, by sliding the bushing rod 282, the rotating member 42 is rotated via the link 46, and the supporting piece 422 is rotated.
can support the optical axis adjustment screw 20.

Next, a fourth embodiment shown in FIG. 7 will be described.

In this embodiment, a rotating arm 48 is provided which rotates with the rotation of the headlamp case, and a hollow support 50 is provided between the rotating arm 48 and the bushing rod 282, so that a space between the two 48,282 is provided. A spring 52 is provided which urges the spring 52 to shorten, and links 54, 54 whose connecting portions 541 are bent in the direction of rotational force are provided.
This is an example in which 6 is provided.

Therefore, with one rotation of the rotation arm 48, the links 54 and 54
When the bushing rod 282 is rotated, the links 54, 54 are extended against the stopper 56, and the bushing rod 282 is advanced.

Next, a fifth embodiment shown in FIG. 8 will be described.

This embodiment is an example in which a tapered disc 60 is used as the support release means.

Note that the thickest part of the disk 60 becomes the regular support surface 601.

Therefore, as the headlamp case 2 rotates, it becomes a circle! 160
is rotated, the support position of the optical axis adjustment screw 20 is moved, and the optical axis adjustment screw 20 can be supported on the regular support surface 601.

Next, a sixth embodiment shown in FIG. 9 will be described.

In this embodiment, as support release means, a rotating shaft 704 rotatably provided on a headlamp case 700 by a bracket 702 meshes with a fixed gear 706 fixed to the rotating shaft 704 and fixed to the vehicle body to rotate. and an aiming stopper 712 that is fixed to the rotating shaft 704 and supports the base end of the optical axis adjustment screw 710 in the protruding state of the headlamp case 700. Support release means 7
This is an example using 0.

In addition, 716 is a lamp housing, 722 is a lamp, 72
4 is a spring, 738 is a stopper, and 744 is a pole joint.

Therefore, as the headlamp case rotates, the planetary gear rotates and revolves around the fixed gear, and the rotation of the planetary gear rotates the rotation axis, and the aiming stopper is rotated, causing the optical axis adjustment screw to rotate. support will be cancelled.

Although one embodiment of the present invention has been described above in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and the present invention may be modified without departing from the gist of the present invention. included.

For example, the headlamp case 2 only needs to be able to rotate relative to the vehicle body 4 from the retracted state to the protruded state and support the lamp housing 16.

Further, the driving means may also be one using negative pressure or hydraulic fluid pressure other than the electric motor 10.

The support of the lamp housing 16 is not limited to the pole joint 18.

Further, the support release means is also interlocked with the drive means to support the base end of the optical axis adjustment screw in the protruding state of the headlamp case,
Any type of support may be used as long as the support is released when the headlamp case is in the stored state.

Further, the stopper 38 may be provided on the headlamp case 2 or the vehicle body 4.

(Effects of the Invention) As described above, according to the adhesive tractor pull headlamp of the present invention, the lamp and lamp housing are supported so that a normal optical axis is obtained when the headlamp case is extended, and the headlamp case is supported when the headlamp case is retracted. The support is released in conjunction with the rotational drive of the lamp lens, and the lamp lens surface, whose position is regulated by the stopper, is returned to a position flush with the outer surface of the vehicle body, resulting in a gap or step between the surface and the outer surface of the vehicle body. The effect is that it always looks good, is less likely to generate noise, and is less likely to break down due to objects being caught in it.

[Brief explanation of drawings]

1 and 2 are partially cutaway side views showing a glue tractor pull headlamp according to a first embodiment of the present invention, FIG. 3 is a cross-sectional view showing essential parts of the headlamp according to the first embodiment, FIG. 5 is a perspective view showing the headlamp of the first embodiment, FIG. 5 is a sectional view showing the main parts of the headlamp of the second embodiment, and FIG. 6 is an operation explanatory diagram showing the main parts of the headlamp of the third embodiment. Figure 7 is the 4th
FIG. 8 is a perspective view showing the main parts of the headlamp of the fifth embodiment. FIG. 9 is a side view of the main parts of the headlamp of the sixth embodiment. . 2.700...Headlamp case 4...Vehicle body 10...Electric motor (driving means) 16.716...Lamp housing 20.710...Optical axis adjustment screw 22.722...Lamp 24 .724...Spring 26.70...Support release means 38.738...Stopper 60...Disc (support release means) Patent application Nissan Shatai Co., Ltd. Figure 9 Figure 1 Figure 2 Figure 5 Figure 6 Figure 7 Figure 8

Claims (1)

[Scope of Claims] 1) A headlamp case is provided so as to be rotatable from a retracted state stored in the vehicle body to a protruded state, and a driving means for rotationally driving the headlamp case is provided, A lamp housing is provided to be swingable relative to the lamp case, a lamp is supported by the lamp housing, and an optical axis adjustment screw is provided which is screwed into the lamp housing and whose base end is supported by the headlamp case. , a retractable headlamp in which the lamp lies supine with the headlamp case in a retracted state and the lamp is erected with the headlamp case in a protruding state, wherein the lamp housing is located at a position where the optical axis adjustment screw is provided in the lamp housing; and a spring that urges the lamp housing in a direction to shorten the distance between the lamp housing and the headlamp case, the spring being interlocked with the driving means to support the base end of the optical axis adjustment screw in the protruding state of the headlamp case, and , the headlamp case is provided with a support release means for releasing the support of the base end of the optical axis adjustment screw when the headlamp case is in the retracted state, and when the support release means releases the support of the optical axis adjustment screw, the lamp is A retractable headlamp, characterized in that a stopper is provided for regulating the position of the lamp housing against the biasing force of the spring so that the lens surface is flush with the outer surface of the vehicle body.