JP2012218657A - Washing device of vehicular lamp - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a washing device of a vehicular lamp, of which the cost is reduced by reducing the number of part items and making a bumper cover compact, and in which assemblability of the bumper cover is improved.SOLUTION: The washing device of a vehicular lamp includes a cylinder, a piston, an injection nozzle part 5 attached to the distal end of the piston, and the bumper cover 16 attached to the injection nozzle part 5. In the washing device, a pair of upper and lower fitting plates 16A are integrally formed on the back surface of the bumper cover 16, and a part 11A to be fitted is integrally formed at the injection nozzle part 5. An engaging hole 16a is formed on the fitting plates 16A and an engaging pawl 11c is formed on the part 11A to be fitted. The fitting plate 16A is fitted to the part 11A to be fitted, the engaging pawl 11c formed at the part 11A to be fitted is engaged with the engaging hole 16a formed on the fitting plates 16, and thus the bumper cover 16 is attached to the injection nozzle part 5.

Description

  The present invention relates to a cleaning apparatus for spraying a cleaning liquid onto a vehicle lamp such as a headlamp to clean the surface thereof.

  If the front (lens surface) of the headlamps arranged on the left and right of the front part of the vehicle becomes dirty due to dust or mud, the amount of light may be insufficient. A cleaning device for cleaning the front surface of the headlamp is installed on the back side of the front bumper. The cleaning device includes a cylinder to which cleaning liquid is supplied, a piston slidably fitted in the cylinder, an injection nozzle portion attached to the tip of the piston, and a bumper attached to the injection nozzle portion. A cover is provided.

  On the left and right of the front bumper of the vehicle equipped with such a cleaning device, there are formed openings through which the piston and the injection nozzle portion attached to the tip of the front lamp pass and protrude forward of the vehicle when cleaning the headlamp. Yes.

  Thus, when the nozzle is not cleaned, the injection nozzle is stored on the back side of the front bumper. When the headlamp is cleaned, the piston and the injection nozzle are opened from the opening formed in the front bumper by the pressure of the cleaning liquid. When the pressure of the cleaning liquid rises above the specified value, the check valve opens and the cleaning liquid is supplied to the spray nozzle, and the cleaning liquid is sprayed from the spray nozzle toward the headlamp and adheres to the front surface of the headlamp. Dust and mud are removed. When the headlamp cleaning is completed, the piston and the injection nozzle portion are returned to the retracted position on the back side of the front bumper by the biasing means such as a return spring, and the opening of the front bumper is the bumper cover attached to the injection nozzle portion. The spray nozzle portion and the like in the back are not visible from the outside.

  By the way, since the attachment of the bumper cover to the injection nozzle portion was performed by screwing or the like from a narrow opening portion of the front bumper, there was a problem that workability was extremely poor.

  Therefore, in Patent Document 1, a bumper cover mounting structure as shown in FIG. 11 is proposed.

  That is, FIG. 11 is an exploded perspective view showing the bumper cover mounting structure proposed in Patent Document 1. As shown in the figure, on the back surface of the bumper cover 116, there is a cylindrical receiving portion 116A and the receiving portion 116A. A plate-like engaging portion 116B extending horizontally from side to side and vertical rib-like reinforcing ribs 116C formed at both left and right end portions of the engaging portion 116B are integrally projected. Here, an engagement notch 116a is formed on the upper portion of the receiving portion 116A, and receiving notches 116b are formed on both left and right sides of the receiving portion 116A. The left and right engaging portions 116B are formed with engaging holes 116c.

  On the other hand, a holder 120 is attached to the valve case 111 of the injection nozzle part 105 attached to the tip of a piston (not shown), and the holder 120 has a shaft-like fitting shaft part 120A and its left and right sides. A horizontally extending plate-like support portion 120B is formed. And the rotation prevention protrusion 120a is formed in the upper part of 120 A of shaft parts of the holder 120, and the engaging claw 120b is formed in the right-and-left support part 120B, respectively.

  Thus, the bumper cover 116 is attached to the injection nozzle unit 105 in the following manner.

  That is, with the piston (not shown) and the injection nozzle portion 105 at the tip thereof attached to the vehicle body via a bracket (not shown), the receiving portion 116A of the bumper cover 116, the engaging portion 116B, and the reinforcing rib 116C are connected to the front bumper. When inserted into the inside through an opening (not shown), the detent protrusion 120a formed on the fitting shaft portion 120A of the holder 120 engages with the engagement notch 116a of the receiving portion 116A, and the left and right support portions 120B receive. The bumper cover 116 is positioned with respect to the injection nozzle portion 105 by fitting 120b into the receiving notch of the portion 116A. Then, when the bumper cover 116 is further pushed in while maintaining this state, the engagement claws 120b formed on the left and right support portions 120B of the holder 120 are engaged with the engagement portions 116B formed on the bumper cover 116 side. The bumper cover 116 is attached to the injection nozzle unit 105 via the holder 120 by engaging with the joint hole 116 c.

  As described above, according to the mounting structure shown in FIG. 11, the bumper cover 116 is simply pushed inward while the receiving portion 116A of the bumper cover 116 and the fitting shaft portion 120A of the holder 120 are aligned. The bumper cover 116 can be attached to the injection nozzle portion 105.

JP 2006-335275 A

  However, the conventional mounting structure shown in FIG. 11 has a problem in that the holder 120 is necessary, so that the number of parts increases, resulting in an increase in cost. Further, since the bumper cover 116 is provided with a receiving portion 116A and a wide engaging portion 116B and a reinforcing rib 116C that extend in the lateral direction, the bumper cover 116 becomes larger, and its pressure receiving area also becomes larger, and the bumper is increased during cleaning. There is also a problem that the force due to the wind pressure received by the cover 116 increases. If the force due to the wind pressure received by the bumper cover 116 during cleaning is large, the piston cannot extend completely, and the cleaning liquid sprayed from the spray nozzle portion 105 attached to the tip of the piston is not sprayed to the target headlamp position. There is a possibility that the cleaning of the headlamp becomes insufficient.

  Furthermore, in the conventional mounting structure shown in FIG. 11, the receiving portion 16A of the bumper cover 116 is inserted from a narrow opening of the front bumper, and this is accurately aligned with the fitting shaft portion 120A of the holder 120. There is a problem that it is not easy, and it is necessary to use a special means such as a jig for positioning them.

  The present invention has been made in view of the above problems, and the object of the present invention is to reduce the number of parts and reduce the size of the bumper cover, thereby reducing the cost and improving the assembling property of the bumper cover. An object of the present invention is to provide a vehicular lamp cleaning device capable of performing

  In order to achieve the above object, the invention according to claim 1 is a cylinder to which cleaning liquid is supplied, a piston slidably fitted in the cylinder, and an injection nozzle portion attached to the tip of the piston. And a bumper cover attached to the spray nozzle portion, and a vehicular lamp cleaning device that sprays a cleaning liquid from a spray port of the spray nozzle portion toward the vehicle lamp, and a pair of upper and lower fittings on the back surface of the bumper cover. A mating plate is integrally formed, and a fitting portion is formed integrally with the injection nozzle portion. An engaging claw is formed on one of the fitting plate and the fitting portion, and an engaging hole is formed on the other. The bumper cover is ejected by fitting the fitting plate into the fitted portion and engaging the engaging claw formed on one of the two with the engaging hole formed on the other. No Characterized in that attached to the pole tip.

  According to a second aspect of the present invention, in the first aspect of the present invention, a pair of left and right guide ribs are provided on the upper and lower surfaces of the injection nozzle portion to guide the bumper cover in sliding contact with both left and right end surfaces of the fitting plate of the bumper cover. It is characterized by standing up.

  According to a third aspect of the present invention, in the invention of the second aspect, the height of the guide rib is varied between right and left, and either the left or right of the fitting plate is in contact with the high height guide rib. A misassembly prevention rib for preventing fitting of the fitting blade to the fitting portion is formed.

  According to a fourth aspect of the present invention, in the third aspect of the present invention, the right and left injection nozzle portions are shared by the left and right sides upside down, and the fitting plate formed on the left and right bumper covers has the error. The assembly prevention ribs are formed on the opposite sides on the left and right sides.

  According to the first aspect of the present invention, a pair of upper and lower fitting plates integrally formed on the back surface of the bumper cover is inserted from the opening of the bumper, and the fitting plate is formed in the injection nozzle portion. If the bumper cover is pushed in as it is fitted in the upper and lower surfaces, the engagement claw formed on one of the fitting plate and the fitted portion engages with the engagement hole formed on the other, and the bumper cover Is attached to the injection nozzle portion, so that parts such as a holder that have been conventionally required are not required, and the number of parts can be reduced to reduce the cost.

  Further, the width of the pair of upper and lower fitting plates formed on the back surface of the bumper cover is narrower than the width of the fitted portion of the injection nozzle portion, and the size of the bumper cover may be sufficient to cover the injection nozzle portion. The bumper cover can be downsized to reduce costs. Since the bumper cover is reduced in size in this way, the pressure receiving area of the bumper cover is also reduced, so that the bumper cover receives when the piston, the injection nozzle, and the bumper cover protrude forward of the front bumper during cleaning. The force due to wind pressure is kept small. For this reason, the piston can be fully extended against the force of the wind pressure, and the cleaning liquid sprayed from the spray nozzle of the spray nozzle attached to the tip of the piston is accurately sprayed to the target position. The lamp is thoroughly cleaned.

  According to the second aspect of the present invention, when the bumper cover is attached, the guide ribs formed on the upper and lower surfaces of the engaged portion of the injection nozzle portion are in sliding contact with the left and right side surfaces of the fitting plate to guide the movement of each guide rib. Therefore, the assembling property of the bumper cover is improved.

  According to the third and fourth aspects of the present invention, guide ribs having different heights are respectively formed on the upper and lower surfaces of the injection nozzle portion, and the bumper cover is properly attached to either the left or right of the pair of upper and lower fitting plates of the bumper cover. Since the wrong assembly prevention rib that interferes with the higher guide rib when the upper and lower and left and right sides are assembled with each other is assembled, the bumper cover is prevented from being assembled incorrectly, and the bumper cover is always attached. It can be attached in a regular state.

It is a side view at the time of storage of the washing | cleaning apparatus which concerns on this invention. It is the sectional view on the AA line of FIG. (A), (b) is a sectional side view which shows the state of the washing | cleaning apparatus at the time of non-washing (at the time of storing) and washing | cleaning. It is a top view which shows the state before attaching the bumper cover of the washing | cleaning apparatus which concerns on this invention to an injection nozzle part. It is a top view which shows the state which attached the bumper cover of the washing | cleaning apparatus which concerns on this invention to the injection nozzle part. (A), (b) is the BB sectional drawing of FIG. It is the perspective view which looked at the bumper cover and injection nozzle part in the attachment state in the washing | cleaning apparatus which concerns on this invention from the back side. It is a rear view of the bumper cover and injection nozzle part in the attachment state of the washing | cleaning apparatus which concerns on this invention. It is CC sectional view taken on the line of FIG. It is a top view which shows the state which attached the bumper cover of another design to the injection nozzle part in the washing | cleaning apparatus which concerns on this invention. It is a disassembled perspective view which shows the attachment structure of the bumper cover proposed in patent document 1. FIG.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  1 is a side view of the cleaning device according to the present invention when stored, FIG. 2 is a cross-sectional view taken along line AA of FIG. 1, and FIGS. 3A and 3B are non-cleaned (stored) and cleaned. FIG. 2 is a side sectional view showing a state of the cleaning device, and the cleaning device 1 according to the present embodiment injects cleaning liquid toward the front surface (lens surface) of a headlamp (not shown) arranged on the left and right of the front portion of the vehicle. The apparatus for cleaning the front surface is disposed on the back side of the front bumper 50 as shown in FIG. Although the cleaning device 1 is installed for each of the left and right headlamps, the configuration and operation thereof are the same for the left and right, and therefore only one cleaning device 1 will be described below.

  A cleaning device 1 shown in FIGS. 1 and 2 has a cylindrical piston 3 slidably inserted into a cylindrical cylinder 2 and an injection nozzle portion via a check valve mechanism 4 at the tip of the piston 3. 5 is attached.

  The cylinder 2 is supplied with cleaning liquid from a washer tank (not shown), and a plug 6 is provided at the center of the rear end thereof at right angles to the axial direction of the cylinder 2. The washer tank communicates with a hose (not shown) connected to the plug 6. A bottomed cylindrical cover 7 is fitted on the inner periphery of the front end of the cylinder 2, and a bracket 8 is attached to the outer periphery of the cover 7. The cleaning device 1 is attached to the vehicle body on the back side of the front bumper 50 shown in FIG.

  A compression spring 9 as a biasing means for biasing the piston 3 in the direction in which the piston 3 is pulled into the cylinder 2 is wound around the outer periphery of the piston 3 in the cylinder 2, as shown in FIG. The spring 9 is compressed between the cover 7 and the cylinder 2.

  The large-diameter portion 3A at the rear end of the piston 3 is in sliding contact with the inner peripheral surface of the cylinder 2 via a rubber seal member 10, and a cleaning liquid passage 3a penetrating in the axial direction is formed in the inside. Yes.

  As shown in FIG. 2, the check valve mechanism 4 includes a valve case 11 and a valve spring 13 for energizing the valve 12 in the closing direction. The shape is an ellipse that is flat in the horizontal direction. The spring constant of the valve spring 13 is set larger than the spring constant of the compression spring 9.

  Here, the injection nozzle unit 5 is fitted and held in the check valve mechanism 4, the nozzle holder 14 rotatably supported on the left and right of the valve case 11 of the check valve mechanism 4, and the left and right nozzle holders 14. The bumper cover 16 is provided from the rear surface of the rectangular tube-shaped fitting portion 11A formed at the center in the width direction of the valve case 11 from the rear side of the vehicle (left side in FIG. 1). It is attached via a pair of upper and lower fitting plates 16A extending horizontally toward. In addition, the bumper cover 16 stores the opening 50a formed in the front bumper 50 shown in FIG. 3 at the time of non-cleaning (the piston 3 and the injection nozzle 5 are stored behind the front bumper 50 as shown in FIG. 3A). The details of the mounting structure will be described later.

  Next, the operation of the cleaning device 1 configured as described above will be described.

  In the cleaning device 1 according to the present embodiment, when the headlamp is not cleaned, the piston 3 is moved to the cylinder 2 by the urging force of the compression spring 9 as shown in FIGS. 1, 2, and 3 (a). At this time, the valve 12 of the check valve mechanism 4 is closed by a valve spring 13 as shown in FIG. As shown in FIG. 3A, the injection nozzle portion 5 is stored behind the front bumper 50 of the vehicle, and a bumper cover 16 attached to the tip of the injection nozzle portion 5 is an opening 50a formed in the front bumper 50. Is blocking.

  Thus, when the headlamp is cleaned by the cleaning device 1, a high-pressure cleaning liquid is supplied from a washer tank (not shown) to a cylinder 2 of the cleaning device 1 through a hose (not shown), and the pressure of the cleaning liquid is reduced. The piston 3 received on the end face of the large diameter portion 3A is pushed forward while the compression spring 9 is compressed. When the piston 3 is pushed forward in this manner, the piston 3 and the injection nozzle portion 5 provided at the tip thereof are opened together with the bumper cover 16 in the front bumper 50 as shown in FIG. The vehicle is pushed forward from 50a. In this case, since the spring constant of the valve spring 13 is set larger than the spring constant of the compression spring 9 as described above, the valve 12 of the check valve mechanism 4 remains closed as shown in FIG. Is not supplied to the injection nozzle section 5.

  As described above, when the piston 3 moves forward to the front end of the cylinder 2 due to the pressure of the cleaning liquid and stops, the piston 3 is in the most extended state that extends most from the cylinder 2. In this way, after the piston 3 reaches the most extended position where it is most pulled out from the cylinder 2, the pressure of the cleaning liquid rises above a predetermined value, and the force based on the pressure of the cleaning liquid acting on the valve 12 of the check valve mechanism 4 is increased. When the urging force of the valve spring 13 becomes larger, the valve 13 moves forward and opens, so that the cleaning liquid is supplied from the valve case 11 to the left and right injection nozzles 15 via the left and right nozzle holders 14.

  As described above, the cleaning liquid supplied to the left and right ejection nozzles 15 is ejected toward the front surface of the headlamp from unillustrated ejection openings that open to the respective ejection nozzles 15, and is attached to the front surface of the headlamp. Wash away dirt and mud. When the cleaning of the headlamp is completed and the supply of the cleaning liquid to the cylinder 2 is interrupted, the piston 3 is drawn into the cylinder 2 as shown in FIG. The injection nozzle unit 5 is returned to the retracted position on the back side of the front bumper 50, the bumper cover 16 closes the opening 50a of the front bumper 50, and the valve 12 of the check valve mechanism 4 is closed again as shown in FIG.

  Next, the attachment structure to the injection nozzle part 5 of the bumper cover 16 is demonstrated below based on FIGS.

  4 is a plan view showing a state before the bumper cover is attached to the injection nozzle portion, FIG. 5 is a plan view showing a state in which the bumper cover is attached to the injection nozzle portion, and FIGS. 6A and 6B are views of FIG. FIG. 7 is a perspective view of the bumper cover and the injection nozzle in the attached state as seen from the back side, FIG. 8 is a rear view of the bumper cover and the injection nozzle in the attached state, and FIG. FIG.

  As shown in FIGS. 7 and 8, the bumper cover 16 has a resin shape that matches the shape of the opening 50a (see FIG. 3) formed in the front bumper 50 (in this embodiment, a rectangular arcuate curved surface shape). A pair of upper and lower fitting plates 16A are integrally formed horizontally and in parallel on the rear surface of the rear side (downward in FIGS. 4 and 5) (see FIG. 9). A rectangular engagement hole 16a is formed at the tip of each of the pair of upper and lower fitting plates 16A, and a transverse section is formed at one end edge in the left-right direction (the right end edge in FIGS. 5 and 6A). An inverted L-shaped misassembly prevention rib 16b is integrally formed along the longitudinal direction (vehicle longitudinal direction).

  On the other hand, as shown in FIGS. 4, 6, 7 and 8, guide ribs 11 a and 11 b having different heights are provided at predetermined intervals (on the left and right sides of the upper and lower surfaces of the valve case 11 provided in the injection nozzle portion 5. The width of the fitting plate 16A is set up in parallel with each other along the vehicle front-rear direction (the direction perpendicular to the plane of FIG. 6). In the present embodiment, the left guide rib 11a is high and the right guide rib 11b is low in the rear view (see FIG. 6). As shown in FIGS. 4 and 9, an engaging claw 11 c is formed at the center in the width direction of the upper and lower surfaces of the valve case 11.

  Thus, as described above, the cleaning device 1 is attached to the vehicle body on the back side of the front bumper 50 as shown in FIG. 3A via the bracket 8 (see FIGS. 1 and 2). A bumper cover 16 is attached to the injection nozzle portion 5 of the apparatus 1 in the following manner.

  That is, if a pair of upper and lower fitting plates 16A formed on the back surface of the bumper cover 16 are inserted straight into the opening 50a of the front bumper 50 from the front of the vehicle to the rear of the vehicle, the pair of upper and lower fitting plates 16A are ejected from the injection nozzle. It is fitted to the upper and lower surfaces of a rectangular tube-like fitting portion 11A formed at the tip of the valve case 11 of the portion 5 and the left and right guide ribs 11a and 11b respectively protruding from the upper and lower surfaces. If the bumper cover 16 is pushed further into the rear side (rear of the vehicle) in such a state, the pair of upper and lower fitting plates 16A of the bumper cover 16 are in sliding contact with the left and right guide ribs 11a and 11b. The valve case 11 moves along the upper and lower surfaces of the fitted portion 11A of the valve case 1 while being guided in the state, and as shown in FIGS. 5 and 9, the valve case 11 is inserted into the fitting holes 16a formed in each fitting plate 16A. The engaging claws 11 c formed on the upper and lower surfaces of the fitted portion 11 </ b> A are engaged, and the bumper cover 16 is fixed to the injection nozzle portion 5. In this case, when the upper and lower sides of the bumper cover 16 are correct, as shown in FIG. 6A, the erroneous assembly preventing ribs 16b formed on the upper and lower fitting plates 16A are on the side of the guide rib 11b having a lower height (see FIG. 6). Therefore, the misassembly prevention rib 16b does not interfere with the guide rib 11b, and the bumper cover 16 can be attached smoothly without any trouble.

  On the other hand, when the operator tries to attach the bumper cover 16 upside down, the erroneous assembly preventing ribs 16b formed on each fitting plate 16A are as shown in FIG. Therefore, the improper assembly preventing rib 16b interferes with the guide rib 11a and cannot push the bumper cover 16 any further. As a result, the operator notices that the bumper cover 16 is mounted upside down, and erroneous assembly of the bumper cover 16 is reliably prevented.

  By the way, since the curved surface shape of the bumper cover 16 is along the curved surface shape of the front bumper 50, the shape is different on the right and left sides, and it is necessary to prevent the wrong assembly of attaching the left and right bumper covers 16 in reverse.

  In this Embodiment, the injection nozzle part 5 is shared by right and left, and the valve case 11 is used by reversing the left and right. Accordingly, the left and right valve cases 11 are opposite to each other in the left and right arrangements of the two guide ribs 11a and 11b formed on the upper and lower surfaces of the valve case 11. Therefore, if the left and right positions of the misassembly prevention ribs 16b formed on the pair of upper and lower fitting plates 16A of the bumper cover 16 are reversed with respect to the left and right bumper covers 16, the operator It is possible to prevent erroneous assembly by mistaken mounting.

  As described above, in the cleaning apparatus 1 according to the present embodiment, the pair of upper and lower fitting plates 16A integrally formed on the back surface of the bumper cover 16 is inserted from the opening 50a of the front bumper 50, and the fitting plate If the bumper cover 16 is pushed in as it is fitted into the upper and lower surfaces of the fitted portion 11A formed in the valve case 11 of the injection nozzle portion 5, the engagement hole 16a formed in the fitting plate 16A is inserted into the engagement hole 16a. Since the engagement claws 11c formed on the upper and lower surfaces of the valve case 11 are engaged and the bumper cover 16 can be easily attached to the injection nozzle portion with a single touch, components such as the holder 120 (see FIG. 11) which have been conventionally required Is eliminated, and the number of parts can be reduced to reduce costs. When the bumper cover 16 is attached, the guide ribs 11a and 11b formed on the upper and lower surfaces of the engaged portion 11A of the valve case 11 are in sliding contact with the left and right side surfaces of the fitting plate 11A and the fitting plates 16A move. Therefore, the assembling property of the bumper cover 16 is improved.

  Note that the bumper cover 16 'having a different design as shown in FIG. 10 can be dealt with only by changing the length of the fitting plate 16A integrally formed on the back surface thereof.

  Further, the width of the pair of upper and lower fitting plates 16A formed on the back surface of the bumper cover 16 is narrower than the width of the fitted portion 11A formed on the valve case 11 of the injection nozzle portion 5, and the size of the bumper cover 16 is reduced. Since it is sufficient to cover the injection nozzle portion 5, the bumper cover 16 can be downsized to reduce the cost. Since the bumper cover 16 is reduced in size as described above, the pressure receiving area of the bumper cover 16 is also reduced. Therefore, as shown in FIG. 3B, the piston 3, the injection nozzle unit 5, and the bumper cover 16 are cleaned. As a result, the force caused by the wind pressure received by the bumper cover 16 when the front bumper 50 protrudes forward is suppressed to a low level. For this reason, the piston 3 can be fully extended against the force of the wind pressure and the urging force of the compression spring 9 (see FIG. 2), and the injection of the nozzle 15 to the injection of the injection nozzle portion 5 attached to the tip thereof. The cleaning liquid sprayed from the mouth is accurately sprayed to the target headlamp position, and the headlamp is sufficiently cleaned.

  In the present embodiment, guide ribs 11a and 11b having different heights are respectively formed on the upper and lower surfaces of the valve case 11 of the injection nozzle portion 5, and either one of the left and right of the pair of upper and lower fitting plates 16A of the bumper cover 16 is formed. Since the bumper cover 16 is formed with the misassembly prevention rib 16b that interferes with the guide rib 11a having a higher height when the bumper cover 16 is to be assembled with the right and left and the right and left being reversed with respect to the normal state, Assembling is prevented, and the bumper cover 16 can be always attached in a normal state.

  In the above embodiment, the engaging hole 16a is formed in the fitting plate 16A on the bumper cover 16 side, and the engaging claw 11c is formed in the fitted portion 11A of the valve case 11, but this is not the case. Alternatively, an engagement claw may be formed in the fitting plate 16A on the bumper cover 16 side, and an engagement hole may be formed in the fitted portion 11A of the valve case 11.

DESCRIPTION OF SYMBOLS 1 Cleaning device 2 Cylinder 3 Piston 3A Piston large diameter part 3a Piston cleaning liquid passage 4 Check valve mechanism 5 Injection nozzle part 6 Plug 7 Cover 8 Bracket 9 Compression spring 10 Seal member 11 Valve case 11A Valve case fitting part 11a 11b Valve case guide rib 11c Valve case engagement claw 12 Valve 13 Valve spring 14 Nozzle holder 15 Injection nozzle 16, 16 'Bumper cover 16A Bumper cover fitting plate 16a Bumper cover engagement hole 16b Misassembly prevention rib 50 Front bumper 50a Front bumper opening

Claims (4)

A cylinder to which cleaning liquid is supplied; a piston slidably fitted in the cylinder; an injection nozzle portion attached to the tip of the piston; and a bumper cover attached to the injection nozzle portion, In the vehicular lamp cleaning device that sprays the cleaning liquid from the injection port of the injection nozzle portion toward the vehicular lamp,
A pair of upper and lower fitting plates are integrally formed on the back surface of the bumper cover, and a fitting portion is integrally formed on the injection nozzle portion, and an engagement claw is formed on one of the fitting plate and the fitting portion. The engaging holes are formed in the other, the fitting plate is fitted into the fitted portion, and the engaging claw formed in one of the both is engaged with the engaging hole formed in the other. A vehicular lamp cleaning apparatus, wherein the bumper cover is attached to the injection nozzle portion by combining the two.   2. The vehicle for a vehicle according to claim 1, wherein a pair of left and right guide ribs are provided on the upper and lower surfaces of the injection nozzle portion so as to slide in contact with both left and right end surfaces of the fitting plate of the bumper cover and guide the bumper cover. Lamp cleaning equipment.   The height of the guide rib is varied between the left and right sides, and either the left or right of the fitting plate is brought into contact with the guide rib having a high height to prevent the fitting plate from fitting into the fitted portion. 3. The vehicular lamp cleaning apparatus according to claim 2, wherein a misassembly prevention rib is formed. The right and left jet nozzle portions are used in the left and right direction upside down, and the misassembly prevention ribs are formed on the opposite sides of the fitting plate formed on the left and right bumper covers. The cleaning device for a vehicular lamp according to claim 3.

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