JP2003011791A - Lamp cleaner system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lamp cleaner system capable of being integrated by assembling a lamp unit in a car body. SOLUTION: This lamp cleaner system is composed of a cylinder 4 mounted on the lamp unit 2 having a translucent cover 3 for supplying the cleaning liquid 8, a piston 7 telescopically supported to the cylinder 4 and capable of projecting to the outside of the cover 3 at its tip part 6 through an opening part 5 formed on the cover 3, an injection nozzle 9 mounted on the tip part 6 of the piston 7 for injecting the cleaning liquid 8 to an outer surface of the cover 3, and a lid body 10 mounted on a position to cover the injection nozzle 9, and capable of closing the opening part 5 of the cover 3 in a sunk condition of the piston 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaner system for a lamp unit such as a headlamp.

[0002]

2. Description of the Related Art As a conventional lamp cleaner system,
For example, as shown in Japanese Patent Application Laid-Open No. 10-19730, a cylinder provided in an opening of a vehicle body, a piston extensible and supported by the cylinder, and an injection nozzle attached to the tip of the piston. In some cases, the cleaning liquid is sprayed from the spray nozzle after the piston projects from the cylinder to a predetermined position to remove dust and the like adhering to the front cover of the headlamp.

[0003]

However, in such a conventional technique, a lamp cleaner system must be provided for each of the left and right headlamps. That is, on the assembly line of an automobile company, the lamp cleaner system has to be assembled to the vehicle body, for example, a bumper or a front fender panel, which requires a large number of assembly steps and a long assembly line itself.

Further, even if a lamp cleaner system is previously arranged on a bumper or the like on a sub-assembly line arranged along the assembly line,
When assembling a bumper or the like after assembling the system into a vehicle body, the position of the lamp cleaner system may be displaced due to an applied load, and the mounting position is displaced, so that the position of the injection destination of the injection nozzle and the headlamp The position of the front cover may be relatively displaced.

The present invention has been made in view of such drawbacks of the conventional technique, and provides a lamp cleaner system which can be assembled together by assembling the lamp unit to the vehicle body.

[0006]

According to a first aspect of the present invention, there is provided a cylinder which is provided in a lamp unit having at least a light-transmitting cover and which can supply a cleaning liquid, and a cylinder which can be expanded and contracted with respect to the cylinder. A piston that is supported and has a tip that can protrude outside the cover through an opening formed in the cover, and an injection nozzle that is attached to the tip of the piston and that can inject a cleaning liquid onto the outer surface of the cover. And a lid which is arranged at a position to cover the injection nozzle and can close the opening of the cover when the piston is retracted.

According to the first aspect of the present invention, since the lamp cleaner system is assembled to the lamp unit, the lamp cleaner system can be assembled only by assembling the lamp unit to the vehicle body. The assembly line for the cleaner system is not required, and the assembly line to the vehicle body is shortened accordingly.

Further, since the lamp cleaner system is assembled to the lamp unit, there is no possibility that the position of the injection destination of the injection nozzle and the position of the cover of the lamp unit are relatively displaced, and the lamp cleaner system is always stable. The cleaning liquid can be supplied to the cover.

When the piston is in the retracted state,
Since the lid closes the opening of the cover, there is no possibility that dust or the like will enter the lamp unit through the opening, and since there is no running wind pressure on the piston caused by the protrusion, No air noise is generated.

Further, after the piston projects from the cylinder to a predetermined position, a cleaning liquid is sprayed from a spray nozzle attached to the tip of the piston at an appropriate angle with a high cleaning effect, so that the cover of the lamp unit is covered. It is possible to properly remove dust and the like attached to the.

A second aspect of the present invention is the lamp cleaner system according to the first aspect, wherein the lid body is substantially flush with the cover in a state in which the opening of the cover is closed. Make a state.

According to the second aspect of the present invention, the cover and the lid are separated from each other even when wind pressure is applied to the cover while the opening of the cover is closed by the lid. Since it is almost flush, wind noise is unlikely to occur. Also, even if the cover is cleaned, the cover body is flush so that the cover can be cleaned uniformly.

According to a third aspect of the present invention, a cylinder provided at least in the lamp unit having a light-transmitting cover and capable of supplying a cleaning liquid, and a cylinder that is extendably and contractably supported by the cylinder, are provided. A piston whose tip can be projected to the outside of the cover, an injection nozzle which is attached to the tip of the piston and can inject a cleaning liquid to the outer surface of the cover, and a piston which is arranged at a position covering the injection nozzle and the piston is immersed In this state, the cover body is provided on the side edge of the cover.

According to the third aspect of the invention, since the lamp cleaner system is assembled to the lamp unit, the lamp cleaner system can be assembled only by assembling the lamp unit to the vehicle body. The assembly line for the cleaner system is not required, and the assembly line to the vehicle body is shortened accordingly.

Further, since the lamp cleaner system is assembled to the lamp unit, there is no fear that the position of the injection destination of the injection nozzle and the position of the cover of the lamp unit are relatively displaced, and the lamp cleaner system is always stable. The cleaning liquid can be supplied to the cover.

When the piston is in the retracted state,
Since the lid serves as a pseudo cover portion of the cover, the degree of freedom in design is increased, and since there is no running wind pressure on the piston caused by the protrusion, no air noise is generated.

Further, after the piston projects from the cylinder to a predetermined position, a cleaning liquid is sprayed from a spray nozzle attached to the tip of the piston at an appropriate angle with a high cleaning effect, so that the cover of the lamp unit is covered. It is possible to properly remove dust and the like attached to the.

According to a fourth aspect of the present invention, in the lamp cleaner system according to the third aspect, the lid body is substantially flush with the cover while being housed on the side edge of the cover. Make up.

According to the fourth aspect of the present invention, the cover and the lid are separated from each other even when wind pressure is applied to the cover while the side edge of the cover is closed by the lid. Since it is almost flush, wind noise is unlikely to occur.
Also, even if the cover is cleaned, the cover body is flush so that the cover can be cleaned uniformly.

The invention according to a fifth aspect is the lamp cleaner system according to any one of the first to fourth aspects, wherein the cylinder is provided by being interposed between the cylinder and the piston. The first spring, which constantly urges the piston in the direction of contraction, and the closing valve, which is incorporated in the valve chamber formed at one end of the flow passage of the piston, in the closing direction. A second spring having a spring force larger than the urging force of the first spring, and the closing valve closes the flow passage of the piston by being pressed against the seating surface of the valve chamber by the second spring. The pressure of the cleaning liquid causes the piston to project from the cylinder and the closing valve is released from the seating surface, so that the cleaning liquid can be injected from the injection nozzle. .

According to the fifth aspect of the present invention, when the cleaning liquid injection switch is turned on, when the cleaning liquid is filled in the cylinder, the pressure due to the cleaning liquid is applied to the closing valve, and the piston moves to the first position via the closing valve. 1 The spring moves by being pushed against the extension force of the spring, and the injection nozzle side projects from the cylinder. When the first spring is compressed most, the movement of the piston is stopped. Further, the closing valve is pushed and moved against the extension force of the second spring by the applied pressure, and is released from the seating surface, thereby communicating with the flow passage of the piston and spraying the cleaning liquid from the spray nozzle. When the cleaning liquid injection switch is turned off, the supply of cleaning liquid is stopped, the pressure inside the cylinder decreases, and the extension force of the second spring prevails, so the closing valve closes the seating surface and the piston flow passage closes. Then, the injection of the cleaning liquid from the injection nozzle is stopped. Then, the piston is pushed and moved by the extension force of the first spring, the injection nozzle side of the piston enters the cylinder, and the cleaning liquid in the cylinder is pushed back to the outside of the cylinder. In this way, the cleaning liquid can be jetted and the jetting can be stopped despite the simple structure. Since the structure is simple, the cost is low and the possibility of failure is significantly reduced.

The invention according to claim 6 is the lamp cleaner system according to any one of claims 1 to 4, wherein the cylinder is formed by being interposed between the cylinder and the piston. With respect to the first spring, which is always biased in the direction of contraction of the piston, and is installed in a valve chamber formed at one end of the flow passage of the piston, and is larger than the biasing force of the first spring. A stop valve having a spring force, the stop valve closing the flow passage of the piston by its own elastic force, the pressure of the cleaning liquid causes the piston to protrude from the cylinder, and the stop valve When is opened, the cleaning liquid can be sprayed from the spray nozzle.

According to the invention of claim 6, claim 6
According to the invention described in (1), when the cleaning liquid injection switch is turned on, when the cleaning liquid is filled in the cylinder, the pressure due to the cleaning liquid is applied to the stop valve, and the piston expands the first spring through the stop valve. It is pushed against and moves, and the injection nozzle side projects from the cylinder. When the first spring is compressed most, the movement of the piston is stopped. Further, a pressure is applied to open the shut-off valve against the tension of the valve itself so that a gap is created, so that the cleaning fluid is jetted from the jet nozzle by communicating with the flow passage of the piston. When the cleaning liquid injection switch is turned off, the supply of cleaning liquid is stopped, the pressure in the cylinder is reduced, the stop valve is closed as before, and the clearance is eliminated, the piston flow passage is closed and the injection nozzle The injection of the cleaning liquid is stopped. Next, the piston is moved by being pushed by the extension force of the first spring, the injection nozzle side of the piston enters the cylinder, and the cleaning liquid in the cylinder is pushed back out of the cylinder. In this way, the cleaning liquid can be jetted and the jetting can be stopped despite the simple structure. Since the structure is simple, the cost is low and the possibility of failure is significantly reduced.

[0024]

BEST MODE FOR CARRYING OUT THE INVENTION A preferred first embodiment of the present invention will be described below with reference to FIGS. The headlamp cleaner system 1 that is the “lamp cleaner system” according to the first embodiment is provided in the headlamp unit 2 that is a “lamp unit” that has at least the front cover 3 that is a “cover” that can transmit light. And a cylinder 4 to which the cleaning liquid 8 can be supplied, and a tip portion 6 outside the front cover 3 through an opening 5 formed in the front cover 3 so as to extend and contract with respect to the cylinder 4. Piston 7 that can project and the piston 7
An injection nozzle 9 attached to the tip portion 6 of the front cover 3 and capable of injecting the cleaning liquid 8 onto the outer surface of the front cover 3, and an opening of the front cover 3 which is arranged at a position covering the injection nozzle 9 and in which the piston 7 is retracted. It is composed of a lid 10 capable of closing the portion 5. The lid 10 includes the front cover 3
It is desirable that the front cover 3 and the front cover 3 are tapered so as to be substantially flush with each other while the opening 5 is closed.

The headlamp unit 2 is an automobile 1.
One on the left and one on the front FR, and a container-shaped housing 21 with the front FR opened, and a transparent, translucent light that is arranged in the opening of the front FR of the housing 21 and slightly curved to the rear RR The front cover 3 is formed in a hollow shape. As shown in FIG. 4, the cylinder 4 is fixed to the housing 21 at a predetermined angle with a bracket 22 interposed therebetween. In the headlamp unit 2, reference numeral 23 is a headlamp (low), 24 is a headlamp (high), and 25 is a side turn signal lamp. By providing the headlamp cleaner system 1 between the headlamp (low) 23 and the headlamp (high) 24, the front cover 3 that covers both the lamps can be uniformly washed.

The headlamp cleaner system 1 comprises
A switch 26 capable of ON / OFF operation, a controller 27, a tank 28 capable of storing the cleaning liquid 8, and a cleaning liquid 8 in the tank 28 can be sucked by turning the switch 26 ON, and the switch 26 can be turned OFF. A pump 29 for stopping the suction and a bifurcated tube 30 that connects the cylinder 4 and the pump 29 are formed. The pump 29 may not only stop the suction when the switch 26 is turned off, but may also backflow, that is, suck the cleaning liquid 8 into the tank 28. The tube 30 is a first tube connected to the pump 29.
It comprises a pipe 30a, a second pipe 30b connected to each of the cylinders 4, and a connecting member 30c connecting the first pipe 30a and the second pipe 30b. The cleaning liquid 8 can be introduced from the port 28a of the tank 28, and the cap 28b closes the port 28a to prevent dust and the like from entering.

The headlamp cleaner system 1 comprises
As shown in FIGS. 10 to 14, the cylinder 4 is formed in a tubular shape, the piston 7 is retractable in the cylinder 4, and the cylinder 4 is arranged at a tip portion 6 of the piston 7. Stopper 31 for closing the mouth 4a
And a coil that is constantly urged so that the piston 7 contracts with respect to the cylinder 4 by being interposed between the stopper 31 of the cylinder 4 and the one end portion 7a of the piston 7, that is, the piston 7 contracts. A first spring 13 and a closing valve 16 incorporated in a valve chamber 15 formed at one end 14a of a flow passage 14 formed at the center of the piston 7 in the closing direction. The second spring 17 has a spring force larger than the biasing force of the first spring 13.

The shut-off valve 16 is, as shown in FIG.
The flow passage 14 of the piston 7 is closed by being pressed against the seating surface 18 of the seating portion 19 forming the valve chamber 15 by the second spring 17. When pressure is applied to the shutoff valve 16 by the cleaning liquid 8 supplied by the pump 29, the piston 7 is pushed up by the pressure and the other end portion 7b of the piston 7 is pushed up as shown in FIG. Side, that is, the side of the nozzle holder 9a where the injection nozzle 9 is provided, protrudes from the cylinder 4, and as shown in FIG. 13, further pressure is applied to release the stop valve 16 from the seating surface 18. As a result, the cleaning liquid 8 enters the valve chamber 15, and the cleaning liquid 8 can be injected from the injection nozzle 9 via the flow passage 14. Reference numeral 32 is a piston ring, and reference numeral 33 is a bellows which is arranged between the stopper 31 and the end portion of the tip portion 6 of the piston 7 so as to be able to expand and contract.

In the headlamp cleaner system 1 thus obtained, since the lamp cleaner system 1 is assembled to the headlamp unit 2, the headlamp unit 2 is simply assembled to the vehicle body of the automobile 11. Since the lamp cleaner system 1 is assembled, the assembly line for the lamp cleaner system 1 is not required, and the assembly line for the vehicle body of the automobile 11 is shortened accordingly. Further, since the headlamp cleaner system 1 is assembled by a manufacturer who assembles the headlamp unit 2, the system can be delivered.

Since the lamp cleaner system 1 is assembled to the headlamp unit 2,
There is no risk that the position of the spray destination of the spray nozzle 9 and the position of the front cover 3 of the headlamp unit 2 will be relatively displaced, and the cleaning liquid 8 will always be stably applied to the front cover 3.
Can be supplied. Moreover, the sprayed water easily hits the front cover 3 at an appropriate angle with a high cleaning effect, and the cleaning efficiency is significantly improved. Further, since the cleaning liquid 8 is jetted downward, it is difficult for the water droplets to reach other structural parts of the vehicle body such as the bumper 12, and the water droplets do not scatter.

Further, as shown in FIGS. 1 to 4, when the piston 7 is in the retracted state, the opening 5 of the front cover 3 is closed by the lid 10, so that the opening 5 is removed from the opening 5. There is no possibility that dust or the like will enter the headlamp unit 2, and since there is no running wind pressure entangled with the piston 7 caused by the protrusion, no air noise is generated.

Further, as shown in FIGS. 6 to 9, after the piston 7 is projected from the cylinder 4 to a predetermined position, a proper cleaning effect is obtained from the injection nozzle 9 attached to the tip portion 6 of the piston 7. By injecting the cleaning liquid 8 at various angles, it is possible to properly remove dust and the like adhering to the front cover 3 of the headlamp unit 2.

Further, as shown in FIGS. 1 to 4, when the opening 5 of the front cover 3 is closed by a lid 10, wind pressure applied to the front cover 3 is applied to the front cover 3 as the vehicle travels. However, since the front cover 3 and the lid 10 are substantially flush with each other, wind noise is unlikely to occur. Further, even if the front cover 3 is cleaned, the lid 10 is flush, so that the front cover 3 can be cleaned uniformly.

Since the lamp cleaner system 1 is assembled to the headlamp unit 2,
Since the lamp cleaner system 1 can be assembled only by assembling the headlamp unit 2 to the vehicle body of the automobile 11, the assembly line of the lamp cleaner system 1 is not required, and the assembly line of the automobile 11 to the vehicle body is accordingly increased. Will be short.

When the cleaning liquid injection switch 26 is turned on and the cleaning liquid 8 is filled in the cylinder 4, the pressure by the cleaning liquid 8 is applied to the closing valve 16, and the piston 7 causes the first spring to move through the closing valve 16. The injection nozzle 9 side projects from the cylinder 4 by being pushed and moved against the extension force of 13. When the first spring 13 is compressed most, the movement of the piston 7 is stopped. Further, the closing valve 16 is pushed and moved against the extension force of the second spring 17 by the applied pressure, and is released from the seating surface 18, thereby communicating with the flow passage 14 of the piston 7 and the cleaning liquid 8 from the injection nozzle 9. Can be injected.

When the cleaning liquid injection switch 26 is turned off, the supply of the cleaning liquid 8 is stopped, so that the pressure in the cylinder 4 is reduced and the extension force of the second spring 17 is increased, so that the stop valve 16 is seated. Face 18 closed, piston 7
Of the cleaning liquid 8 from the injection nozzle 9 is closed.
Injection is stopped. Next, the piston 7 is pushed and moved by the extension force of the first spring 13, the injection nozzle 9 side of the piston 7 enters the cylinder 4, and the cleaning liquid 8 in the cylinder 4 is pushed back out of the cylinder 4.
Thus, despite the simple structure, the cleaning liquid 8
And the injection can be stopped. Since the structure is simple, the cost is low and the possibility of failure is significantly reduced.

FIG. 15 shows a second preferred embodiment of the present invention.
~ It demonstrates based on FIG. The headlamp cleaner system 35, which is the “lamp cleaner system” according to the second embodiment, has at least a “cover” capable of transmitting light.
A head lamp unit 36 which is a “lamp unit” having a front cover 3 which is a cylinder 4, which is capable of supplying a cleaning liquid 8; A piston 7 which is arranged at a side edge of the front cover 3 and has a tip 6 which can be projected to the outside of the front cover 3; A nozzle 9 and a lid body which is arranged at a position covering the injection nozzle 9 and which is substantially flush with the front cover 3 in a state where the piston 7 is retracted and accommodated in a side edge of the front cover 3. And 37.

In the state where the side edges of the front cover 3 are closed by the lid 37, even if wind pressure is applied to the front cover 3 while the vehicle is running, the front cover 3 and the lid 37 are substantially flush with each other. Therefore, wind noise is unlikely to occur. Further, even if the front cover 3 is cleaned, the lid 37 is flush, so that the cleaning can be performed uniformly. Further, since the front cover 3 and the lid 37 appear to be integrated, they become a part of the headlamp design of the front cover 3 and a comprehensive design is possible. Further, since the headlamp cleaner system 1 is assembled by a manufacturer who assembles the headlamp unit 2, the system can be delivered.

Although the headlamp units 2 and 36 have a rice ball shape, a headlamp cleaner system 43 is formed in a recess 41 formed in the upper portion of a horizontally long headlamp unit 40 as shown in FIG. Lid 42
It can be stored. The lid 42 is formed to be substantially flush with the front cover 3.

20 to 24 show that the second spring 17 of the headlamp cleaner system 1 or 35 may be replaced by another means, which will be described below.

A first spring 1 which is interposed between the cylinder 4 and the piston 7 and constantly urges the cylinder 4 in a direction in which the piston 7 contracts.
3 and a rubber shut-off valve 45 which is incorporated in a valve chamber 15 formed at one end 14a of the flow passage 14 of the piston 7 and has a spring force larger than the urging force of the first spring 13. The shutoff valve 45 closes the flow passage 14 of the piston 7 by its own elastic force, the pressure of the cleaning liquid 8 causes the piston 7 to protrude from the cylinder 4, and the shutoff valve 45
The cleaning liquid 8 can be jetted from the jet nozzle 9 by opening.

With such a structure, when the cleaning liquid injection switch 26 is turned ON, when the cleaning liquid 8 is filled in the cylinder 4, the pressure by the cleaning liquid 8 is applied to the closing valve 45, and the piston 7 is passed through the closing valve 45. Is pushed against the extension force of the first spring 13 and moves from the state shown in FIG. 20 to the state shown in FIG. 21, and the injection nozzle 9 side projects from the cylinder 4. In this state, as shown in FIG.
Since the shutoff valve 45 is closed, the cleaning liquid 8 only increases the pressure.

When the first spring 13 is moved to the maximum compression, the movement of the piston 7 is stopped. As shown in FIG. 24, the shut-off valve 45 bends against the tension of the valve itself due to the applied pressure, and a gap is formed between the cut-off valve 46 and the “seating surface”. Then, as shown in FIG. 23, the cleaning liquid 8 is sprayed from the spray nozzle 9.

When the cleaning liquid injection switch 26 is turned off, the supply of the cleaning liquid 8 is stopped, the pressure in the cylinder 4 is reduced, the notch 46 of the shutoff valve 45 returns to its original position, and the clearance disappears. 7 flow passage 14
Is closed, and the injection of the cleaning liquid 8 from the injection nozzle 9 is stopped. Then, the piston 7 is moved by being pushed by the extension force of the first spring 13, and the piston 7 is moved into the cylinder 4.
And the cleaning liquid 8 in the cylinder 4 is pushed back out of the cylinder 4. In this way, the cleaning liquid 8 can be jetted and the jetting can be stopped despite the simple structure. Since the structure is simple, the cost is low and the possibility of failure is significantly reduced.

As shown in FIGS. 25 to 27, the shut-off valve 45 has a circular outer shape and has a notch 46 formed in the center thereof. The state changes to the open state as shown in FIG.

In each of the above embodiments, the headlamp cleaner system 1, 35, 43, the headlamp unit 2, 36, 40 and the front cover 3 have been described with respect to the lamp arranged on the front side of the automobile. However, it is not limited to the front side and may be the rear side.

[0047]

According to the invention of claim 1, since the lamp cleaner system is assembled to the lamp unit, the lamp cleaner system can be assembled only by assembling the lamp unit to the vehicle body.
The assembly line for the lamp cleaner system is not required, and the assembly line to the vehicle body is shortened accordingly.

Further, since the lamp cleaner system is assembled to the lamp unit, there is no fear that the position of the injection destination of the injection nozzle and the position of the cover of the lamp unit are relatively displaced, and the lamp cleaner system is always stable. The cleaning liquid can be supplied to the cover.

When the piston is in the retracted state,
Since the lid closes the opening of the cover, there is no possibility that dust or the like will enter the lamp unit through the opening, and since there is no running wind pressure on the piston caused by the protrusion, No air noise is generated.

Further, after the piston projects from the cylinder to a predetermined position, the cleaning liquid is sprayed from a spray nozzle attached to the tip of the piston at an appropriate angle with a high cleaning effect, so that the cover of the lamp unit is covered. It is possible to properly remove dust and the like attached to the.

According to the second aspect of the present invention, the cover and the lid are separated from each other even when wind pressure is applied to the cover while the opening of the cover is closed by the lid. Since it is almost flush, wind noise is unlikely to occur. Also, even if the cover is cleaned, the cover body is flush so that the cover can be cleaned uniformly.

According to the third aspect of the invention, since the lamp cleaner system is assembled to the lamp unit, the lamp cleaner system can be assembled only by assembling the lamp unit to the vehicle body. The assembly line for the cleaner system is not required, and the assembly line to the vehicle body is shortened accordingly.

Further, since the lamp cleaner system is assembled to the lamp unit, there is no fear that the position of the injection destination of the injection nozzle and the position of the cover of the lamp unit are relatively displaced, and the lamp cleaner system is always stable. The cleaning liquid can be supplied to the cover.

When the piston is in the retracted state,
Since the lid serves as a pseudo cover portion of the cover, the degree of freedom in design is increased, and since there is no running wind pressure on the piston caused by the protrusion, no air noise is generated.

Further, after the piston projects from the cylinder to a predetermined position, the cleaning liquid is sprayed from the spray nozzle attached to the tip of the piston at an appropriate angle with a high cleaning effect, so that the cover of the lamp unit is covered. It is possible to properly remove dust and the like attached to the.

According to the fourth aspect of the invention, the cover and the lid are separated from each other even when wind pressure is applied to the cover while the side edge of the cover is closed by the lid. Since it is almost flush, wind noise is unlikely to occur.
Also, even if the cover is cleaned, the cover body is flush so that the cover can be cleaned uniformly.

According to the fifth aspect of the invention, when the cleaning liquid injection switch is turned on, when the cleaning liquid is filled in the cylinder, the pressure due to the cleaning liquid is applied to the closing valve, and the piston moves to the first position via the closing valve. 1 The spring moves by being pushed against the extension force of the spring, and the injection nozzle side projects from the cylinder. When the first spring is compressed most, the movement of the piston is stopped. Further, the closing valve is pushed and moved against the extension force of the second spring by the applied pressure, and is released from the seating surface, thereby communicating with the flow passage of the piston and spraying the cleaning liquid from the spray nozzle. When the cleaning liquid injection switch is turned off, the supply of cleaning liquid is stopped, the pressure inside the cylinder decreases, and the extension force of the second spring prevails, so the closing valve closes the seating surface and the piston flow passage closes. Then, the injection of the cleaning liquid from the injection nozzle is stopped. Then, the piston is pushed and moved by the extension force of the first spring, the injection nozzle side of the piston enters the cylinder, and the cleaning liquid in the cylinder is pushed back to the outside of the cylinder. In this way, the cleaning liquid can be jetted and the jetting can be stopped despite the simple structure. Since the structure is simple, the cost is low and the possibility of failure is significantly reduced.

According to the sixth aspect of the invention, when the cleaning liquid injection switch is turned on, when the cleaning liquid is filled in the cylinder, the pressure due to the cleaning liquid is applied to the closing valve, and the piston moves to the first position via the closing valve. 1 The spring moves by being pushed against the extension force of the spring, and the injection nozzle side projects from the cylinder. When the first spring is compressed most, the movement of the piston is stopped. Further, a pressure is applied to open the shut-off valve against the tension of the valve itself so that a gap is created, so that the cleaning fluid is jetted from the jet nozzle by communicating with the flow passage of the piston. When the cleaning liquid injection switch is turned off, the supply of cleaning liquid is stopped, so the pressure in the cylinder decreases,
Since the stop valve is closed as before and the gap is eliminated, the flow passage of the piston is closed and the injection of the cleaning liquid from the injection nozzle is stopped. Next, the piston is moved by being pushed by the extension force of the first spring, the injection nozzle side of the piston enters the cylinder, and the cleaning liquid in the cylinder is pushed back out of the cylinder. In this way, the cleaning liquid can be jetted and the jetting can be stopped despite the simple structure. Because it has a simple structure, it becomes cheaper,
The probability of failure is also significantly reduced.

[Brief description of drawings]

FIG. 1 is a front view showing an automobile with a lid of a lamp cleaner system according to a first embodiment of the present invention being closed.

FIG. 2 is a side view of the lamp unit of the automobile shown in FIG.

FIG. 3 is an enlarged front view of FIG.

FIG. 4 is a sectional view taken along the line SA-SA in FIG.

5 is a circuit diagram of the lamp cleaner system of FIG.

FIG. 6 is a front view showing the automobile in a state in which the lid of the lamp cleaner system according to the first embodiment of the present invention is projected to eject the cleaning liquid.

FIG. 7 is a side view of FIG.

8 is an enlarged front view of FIG.

9 is a sectional view taken along line SB-SB in FIG.

10 is a cross-sectional view showing the relationship between the cylinder and the piston of the lamp cleaner system of FIG.

FIG. 11 is a cross-sectional view showing a state where the piston protrudes from the state of FIG.

FIG. 12 is an enlarged cross-sectional view of the main part of FIG.

FIG. 13 is a cross-sectional view showing a state in which the cleaning liquid is sprayed from the state of FIG.

FIG. 14 is an enlarged cross-sectional view of the main part of FIG.

FIG. 15 is an enlarged front view corresponding to FIG. 3 with the lid body of the lamp cleaner system according to the second embodiment of the present invention closed.

16 is a sectional view taken along the line SC-SC in FIG.

FIG. 17 is a front view showing a state where the piston protrudes from the state of FIG. 15 and the cleaning liquid is injected.

FIG. 18 is a sectional view taken along the line SD-SD in FIG.

FIG. 19 is a front view of a lamp unit different from these embodiments.

20 is a cross-sectional view showing the relationship between the cylinder and the piston of the lamp cleaner system of FIG.

FIG. 21 is a cross-sectional view showing a state where the piston protrudes from the state shown in FIG.

22 is an enlarged cross-sectional view of the main part of FIG.

FIG. 23 is a cross-sectional view showing a state in which the cleaning liquid is sprayed from the state shown in FIG.

FIG. 24 is an enlarged cross-sectional view of the main part of FIG.

FIG. 25 is a perspective view of the shutoff valve applied to FIGS. 20 to 24;

FIG. 26 is a perspective view showing a state where the cutout of the shutoff valve of FIG. 25 is opened.

FIG. 27 is a sectional view of FIG. 26.

[Explanation of symbols]

1, 35, 43 Headlamp cleaner system (lamp cleaner system) 2, 36, 40 Headlamp unit (lamp unit) 3 Front cover (cover) 4 Cylinder 5 Opening 6 Piston tip 7 Piston 8 Cleaning liquid 9 Injection nozzle 10 , 37, 42 Lid 11 Vehicle 12 Bumper (car body) 13 First spring 14 Flow passage 15 Valve chamber 16, 45 Closing valve 17 Second spring 18 Seating surface

Claims (6)

[Claims] 1. A cylinder provided at least in a lamp unit having a translucent cover and capable of supplying a cleaning liquid, and an opening formed in the cover, the cylinder being extendably supported by the cylinder. A piston whose tip can be projected to the outside of the cover via an injection nozzle, an injection nozzle which is attached to the tip of the piston and can inject a cleaning liquid onto the outer surface of the cover, and which is arranged at a position covering the injection nozzle and A lamp cleaner system, comprising: a lid body capable of closing an opening of the cover in a retracted state of a piston. 2. The lamp cleaner system according to claim 1, wherein the lid body is substantially flush with the cover in a state in which the opening of the cover is closed. A lamp cleaner system. 3. A cylinder provided at least in a lamp unit having a translucent cover and capable of supplying a cleaning liquid; and a cylinder which is extensible and supported with respect to the cylinder and has a tip portion outside the cover. A piston capable of projecting, an injection nozzle attached to the tip of the piston and capable of injecting a cleaning liquid onto the outer surface of the cover,
A lamp cleaner system, comprising: a lid body that is arranged at a position to cover the injection nozzle and the piston is arranged at a side edge of the cover in a retracted state. 4. The lamp cleaner system according to claim 3, wherein the lid body is substantially flush with the cover when the lid body is housed on a side edge of the cover. Lamp cleaner system. 5. The lamp cleaner system according to any one of claims 1 to 4, wherein the piston contracts with respect to the cylinder by being interposed between the cylinder and the piston. The first spring, which is always urged in the direction, and the closing valve, which is incorporated in a valve chamber formed at one end of the flow passage of the piston, in the closing direction, and the urging force of the first spring. A second spring having a greater spring force, wherein the shutoff valve closes the flow passage of the piston by being pressed against the seating surface of the valve chamber by the second spring, And a cleaning liquid that can be injected from an injection nozzle by allowing the piston to protrude from the cylinder and releasing the stop valve from the seating surface. Pcleaner system. 6. The lamp cleaner system according to any one of claims 1 to 4, wherein the piston contracts with respect to the cylinder by being interposed between the cylinder and the piston. A first spring that is always biased in a direction, and a shutoff valve that is incorporated in a valve chamber formed at one end of the flow passage of the piston and that has a spring force greater than the biasing force of the first spring. The closing valve is configured to close the flow passage of the piston by its own elastic force, and the pressure of the cleaning liquid causes the piston to protrude from the cylinder and the closing valve to open, thereby injecting the injection nozzle. A lamp cleaner system characterized by being able to inject more cleaning liquid.