WO2023058763A1 - クリーナノズル - Google Patents
クリーナノズル Download PDFInfo
- Publication number
- WO2023058763A1 WO2023058763A1 PCT/JP2022/037700 JP2022037700W WO2023058763A1 WO 2023058763 A1 WO2023058763 A1 WO 2023058763A1 JP 2022037700 W JP2022037700 W JP 2022037700W WO 2023058763 A1 WO2023058763 A1 WO 2023058763A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cylinder
- piston
- cleaner nozzle
- axial direction
- coil spring
- Prior art date
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- 238000006073 displacement reaction Methods 0.000 claims abstract description 16
- 230000002093 peripheral effect Effects 0.000 claims description 18
- 230000000452 restraining effect Effects 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 5
- 230000001629 suppression Effects 0.000 abstract description 2
- 238000004140 cleaning Methods 0.000 description 20
- 239000007788 liquid Substances 0.000 description 15
- 238000012986 modification Methods 0.000 description 12
- 230000004048 modification Effects 0.000 description 12
- 230000033228 biological regulation Effects 0.000 description 6
- 230000003068 static effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
- B05B1/08—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape of pulsating nature, e.g. delivering liquid in successive separate quantities ; Fluidic oscillators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
- B05B1/10—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape in the form of a fine jet, e.g. for use in wind-screen washers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/70—Arrangements for moving spray heads automatically to or from the working position
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/70—Arrangements for moving spray heads automatically to or from the working position
- B05B15/72—Arrangements for moving spray heads automatically to or from the working position using hydraulic or pneumatic means
- B05B15/74—Arrangements for moving spray heads automatically to or from the working position using hydraulic or pneumatic means driven by the discharged fluid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/62—Other vehicle fittings for cleaning
Definitions
- the present disclosure relates to cleaner nozzles.
- Patent Document 1 A cleaner nozzle as described in Patent Document 1 is known.
- the piston is provided with an ejection port capable of ejecting a cleaning liquid for cleaning a sensor such as a camera.
- a sensor such as a camera
- the piston may be displaced relative to the cylinder around the axis of the cylinder, causing the ejection port to be displaced from the sensor.
- the cleaner nozzle described in Patent Document 1 has a coil spring inside the cylinder for returning the piston to its original position.
- the coil spring will not be able to uniformly apply an elastic restoring force to the piston.
- the piston cannot be returned to its original position, or when the cleaning liquid is discharged by pushing the piston against the elastic restoring force of the coil spring, the discharge position or posture deviates from the original position or posture. Resulting in.
- the piston can be displaced in the axial direction of the cylinder.
- stroke the amount of displacement of the piston in the axial direction in order to reliably apply the cleaning liquid to the object to be cleaned. Desired. Therefore, the stroke amount of the piston required for each vehicle type is different. However, it takes time and effort to design a cleaner nozzle with different specifications each time according to the required stroke amount.
- a first object of the present disclosure is to provide a cleaner nozzle in which the ejection port is less likely to shift from the object to be cleaned.
- a second object of the present invention is to provide a cleaner nozzle in which displacement of the coil spring in the radial direction of the cylinder is suppressed.
- a third object of the present invention is to provide a cleaner nozzle that can be easily mounted on various types of vehicles.
- a cleaner nozzle includes a cylindrical cylinder extending in the axial direction; a piston displaceable in the axial direction within the cylinder, the cleaner nozzle comprising:
- the piston and the cylinder are provided with a restraining portion that restrains relative displacement of the cylinder and the piston about the axis line by coming into contact with each other.
- a cleaner nozzle includes a cylindrical cylinder extending in the axial direction; a piston displaceable in the axial direction within the cylinder, the cleaner nozzle comprising:
- the piston has a projecting portion projecting in a radial direction of the cylinder,
- the cylinder is provided with a restraining portion that restrains displacement of the piston relative to the cylinder about the axis line by coming into contact with the projecting portion.
- a cleaner nozzle includes a cylindrical cylinder, a piston displaceable within the cylinder in the axial direction of the cylinder;
- a cleaner nozzle comprising The cylinder has a cover covering at least part of the opening,
- a coil spring is provided inside the cylinder to keep the piston away from the cover,
- the cover portion is provided with a guide portion that extends toward the coil spring in the axial direction and contacts the coil spring.
- a cleaner nozzle includes a cylindrical cylinder, a piston displaceable relative to the cylinder in an axial direction of the cylinder,
- the cylinder has a tubular portion and a covering portion that covers at least part of an opening of the tubular portion that is separate from the tubular portion,
- the cover portion is provided with a guide portion that extends in the axial direction and regulates the length of the piston that can be displaced in the axial direction by contacting the piston.
- a cleaner nozzle whose spout is less likely to shift from the object to be cleaned. Further, according to the present disclosure, it is possible to provide a cleaner nozzle in which the coil spring is suppressed from being displaced in the radial direction of the cylinder. Furthermore, it is possible to provide a cleaner nozzle that can be easily mounted on various types of vehicles.
- FIG. 1 is a schematic cross-sectional view explaining the outline of the cleaner nozzle according to the first embodiment.
- FIG. 2 is a perspective view of a cleaner nozzle according to the first embodiment.
- 3 is a cross-sectional view of the III-III plane in FIG. 2.
- FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. 2.
- FIG. 5 is a view in the direction of arrow V in FIG. 2.
- FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. 4.
- FIG. FIG. 7 is an exploded perspective view of the cleaner nozzle according to this embodiment.
- FIG. 8 is an arrow view of the cleaner nozzle according to Modification 1 as seen from the axial direction.
- FIG. 9 is an arrow view of the cleaner nozzle according to Modification 2 as seen from the axial direction.
- FIG. 10 is a perspective view of a cleaner nozzle according to the second embodiment.
- 11 is a cross-sectional view of the XI-XI plane in FIG. 10.
- FIG. 12 is a cross-sectional view taken along the line XII-XII in FIG. 10.
- FIG. 13 is a cross-sectional view taken along the line XIII-XIII in FIG. 12.
- FIG. FIG. 14 is an exploded perspective view of the cleaner nozzle in the second embodiment.
- 15 is a cross-sectional view taken along the line XV-XV in FIG. 13.
- FIG. 16A is a diagram illustrating regulation of stroke amount by a regulation portion and a guide portion.
- FIG. 16B is a diagram illustrating regulation of the stroke amount by the regulation section and the guide section.
- FIG. 1 is a cross-sectional view showing how the cleaner nozzle 1 according to the first embodiment is attached to a vehicle.
- the cleaner nozzle 1 is attached to a vehicle and cleans a sensor W such as a camera and LiDAR (or the like) mounted on the vehicle.
- the cleaner nozzle 1 has a cylinder 10 and a piston 20. , an ejection port 23 capable of ejecting the cleaning liquid is provided.
- the piston 20 can be displaced relative to the cylinder 10 in the direction of the axis Ax of the cylinder 10 (see FIGS. 2 and 3).
- the side of the ejection port 23 in the direction of the axis Ax (upper side in FIG. 3) may be referred to as the front, and the side opposite to the ejection port 23 in the direction of the axis Ax (lower side in FIG. 3) may be referred to as the rear side.
- Cleaning liquid is ejected from the ejection port 23 by relative displacement of the piston 20 with respect to the cylinder 10 .
- the cleaner nozzle 1 cleans the sensor W
- the piston 20 is displaced in the direction of the axis Ax of the cylinder 10, and the ejection port 23 reaches a position closer to the sensor W than when the cleaner nozzle 1 does not clean the sensor W.
- the sensor W can be cleaned by ejecting the cleaning liquid from the ejection port 23 .
- the cleaner nozzle 1 can be configured so that the ejection port 23 protrudes from the design surface of the vehicle only when the cleaner nozzle 1 is in operation, and does not protrude from the design surface of the vehicle when the cleaner nozzle 1 is not in operation. As a result, even if the cleaner nozzle 1 is mounted, the design of the vehicle is less likely to be spoiled.
- FIG. 2 is a perspective view of the cleaner nozzle 1 according to the first embodiment.
- 3 is a cross-sectional view of the III-III plane in FIG. 2.
- FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. 2.
- the cylinder 10 has a cylindrical portion 11 and a cap 12.
- the cap 12 closes at least part of the opening of the tubular portion 11 .
- the cap 12 is an example of a cover.
- the cap 12 has a hole 13 through which a shaft portion 22, which will be described later, can be inserted.
- the cap 12 is provided at one end of the cylindrical portion 11 and covers the opening of the one end of the cylindrical portion 11 except for the hole 13 .
- the cover (cap 12) is configured to be separable from the tubular portion 11. As shown in FIG.
- the covering part in the present disclosure is not limited to the example of this embodiment.
- the tubular portion 11 and the cover portion may be formed integrally.
- the cover (cap 12 ) is provided at one end of the tubular portion 11 , but the cover may be provided inside the tubular portion 11 .
- the piston 20 has a first seal portion 21 .
- the first seal portion 21 is in watertight contact with the inner wall of the cylinder 10 .
- the first seal portion 21 divides the cylinder 10 into a spring housing chamber S and a hydraulic pressure chamber P. As shown in FIG.
- the spring housing chamber S is a space formed between the cap 12 and the first seal portion 21 of the two spaces inside the cylinder 10 partitioned by the first seal portion 21 .
- a coil spring 30 is provided in the spring housing chamber S.
- the coil spring 30 returns the piston 20 to its original position by urging the piston 20 that has been displaced in the direction of the axis Ax and has approached the cap 12 in a direction away from the cap 12 .
- the spring housing chamber S is provided with an air inlet/outlet 14 . When the piston 20 is displaced in the direction of the axis Ax and approaches the cap 12 , the volume of the spring housing chamber S becomes smaller, so that the air inside the spring housing chamber S flows out from the air inlet/outlet 14 .
- the water pressure chamber P is a space provided on the opposite side of the cap 12 from the first seal portion 21 of the two spaces inside the cylinder 10 partitioned by the first seal portion 21 .
- a cleaning liquid is supplied to the water pressure chamber P from a supply source (not shown).
- Piston 20 has a shaft portion 22 .
- the shaft portion 22 is inserted inside the coil spring 30 .
- the shaft portion 22 includes a jet port 23 for jetting cleaning liquid.
- the ejection port 23 is provided at the end of the shaft portion 22 on the cap 12 side. may be
- An internal flow path 22 a is provided inside the shaft portion 22 .
- the internal flow path 22a communicates with the hydraulic chamber P. As shown in FIG.
- the internal flow path 22a also communicates with the ejection port 23 .
- FIG. 5 is a view viewed from the V direction (axis Ax direction) in FIG.
- the shaft portion 22 and the hole 13 have corresponding shapes when viewed in the direction of the axis Ax.
- the shaft portion 22 has two parallel linear portions and two arcuate portions connecting the linear portions when viewed from the direction of the axis Ax. It has a so-called track-like shape.
- the arc-shaped portion is called a piston-side curved portion 26 and the linear portion is called a piston-side flat portion 27 .
- the inner peripheral edge of the hole 13 has a shape corresponding to the outer peripheral edge of the shaft portion 22 .
- the hole 13 is formed by a cylinder-side curved surface portion 16 having a shape corresponding to the piston-side curved surface portion 26 and a cylinder-side flat surface portion 17 having a shape corresponding to the piston-side flat surface portion 27 .
- the piston-side flat portion 27 and the cylinder-side flat portion 17 correspond to suppressing portions that suppress relative rotation between the cylinder 10 and the piston 20 . It is desirable that a plurality of piston-side flat portions 27 and cylinder-side flat portions 17 be provided. In this embodiment, two piston-side flat portions 27 and two cylinder-side flat portions 17 are provided so as to sandwich the axis Ax.
- the ejection port 23 needs to face the object to be cleaned.
- the detection surface of the sensor W is often a relatively small member, and the cleaner nozzle 1 is required to jet the cleaning liquid to an accurate position.
- the piston 20 may unintentionally rotate with respect to the cylinder 10 around the axis Ax.
- the cleaner nozzle 1 of the present embodiment displacement of the piston 20 about the axis Ax with respect to the cylinder 10 is suppressed by the piston-side flat portion 27 and the cylinder-side flat portion 17, which are suppressing portions. Therefore, it is easy to maintain a posture in which the ejection port 23 faces the object to be cleaned. As a result, it is possible to provide the cleaner nozzle 1 in which the ejection port 23 is less likely to be displaced from the object to be cleaned.
- the suppressing portions are the piston-side flat portion 27 provided on the piston 20 and the cylinder-side flat portion 17 provided on the cylinder 10 facing the piston-side flat portion 27 .
- the suppressing portion can be provided with a simple configuration in which the piston 20 is provided with a planar portion as the piston-side planar portion 27 and the cylinder 10 is provided with a planar portion as the cylinder-side planar portion 17. . Further, by abutting the flat surfaces, the relative displacement of the piston 20 and the cylinder 10 around the axis Ax can be kept within a predetermined range with high reproducibility.
- the cylinder-side flat portion 17 partially constitutes the hole 13 provided in the cap 12 (cover portion). Also, the piston-side flat portion 27 is a portion that contacts the hole 13 .
- the cylinder-side flat surface portion 17 that is part of the cap 12 (cover portion) forming the hole 13 and the shaft portion 22 that is part of the piston 20 come into contact with each other. Since the suppressing portion is provided at the portion where the cap 12 and the piston 20 contact each other, the design of the suppressing portion can be simplified.
- At least two cylinder-side flat portions 17 and at least two piston-side flat portions 27 are provided. Therefore, relative displacement between the piston 20 and the cylinder 10 about the axis Ax can be more easily suppressed than when only one cylinder-side flat portion 17 and one piston-side flat portion 27 are provided.
- At least two or more cylinder-side flat portions 17 are provided so as to sandwich the axis Ax when viewed from the direction of the axis Ax. Since two or more cylinder-side flat portions 17 are provided at positions separated from each other, relative displacement between the cylinder 10 and the piston 20 around the axis Ax can be suppressed more efficiently.
- FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. 4.
- the cap 12 has a guide portion 18 that contacts the coil spring 30 and holds the coil spring 30 .
- the guide portion 18 extends to the side opposite to the ejection port 23 . That is, the guide portion 18 extends inside the spring housing chamber S. As shown in FIG.
- two guide parts 18 are provided so as to sandwich the axis Ax.
- the guide portion 18 is in contact with the inner peripheral surface 30 a of the coil spring 30 .
- the guide portion 18 has a flat surface 18a that is flat when viewed in the direction of the axis Ax.
- the flat surface 18 a is provided so as to face the piston-side flat portion 27 .
- the guide portion 18 is provided on the cap 12 (cover portion) so that the flat surface 18 a of the guide portion 18 faces the piston-side flat portion 27 .
- the piston 20 is inserted into the cylindrical portion 11, and the cap 12 is fitted into the cylindrical portion 11 so that the guide portion 18 of the cap 12 faces the piston-side flat portion 27, thereby forming a separate cap. It becomes easy to attach 12 to the tubular portion 11 . Thereby, the cleaner nozzle 1 can be easily assembled.
- the guide portion 18 supports the inner peripheral surface 30a of the coil spring 30. Therefore, compared to the case where the guide portion 18 supports the outer peripheral surface of the coil spring 30, the size of the cleaner nozzle 1 is less likely to increase.
- At least two or more guide portions 18 are provided so as to sandwich the axis Ax when viewed from the direction of the axis Ax. Since the plurality of guide portions 18 are separated from each other, they can support the inner peripheral surface 30a of the coil spring 30 more effectively. Thereby, it is possible to further suppress the coil spring 30 from being displaced with respect to the cylinder 10 .
- the cleaning fluid is ejected from the ejection port 23 along the internal flow path 22a.
- the piston 20 is displaced forward so that the ejection port 23 approaches the sensor W due to the static pressure in the hydraulic chamber P increasing. Since the coil spring 30 is provided in the spring housing chamber S, the displaced piston 20 can be returned to its original position.
- FIG. 7 is an exploded perspective view of the cleaner nozzle 1 according to this embodiment.
- the cleaner nozzle 1 of this embodiment has a second seal portion 40.
- the second seal portion 40 is provided between the coil spring 30 and the cap 12 .
- the second seal portion 40 is desirably made of rubber.
- the second seal portion 40 has a shaft portion through-hole 41 through which the shaft portion 22, which is a part of the piston 20, penetrates, and a guide portion through-hole 42 through which the guide portion 18 penetrates.
- the second seal portion 40 is arranged so as to surround the shaft portion 22 and the guide portion 18 .
- the second seal portion 40 since the second seal portion 40 is provided so as to cover the periphery of the piston 20, it is possible to reduce the inflow of dust and the like from the periphery of the piston 20. Further, the second seal portion 40 has a guide portion through-hole 42 through which the guide portion 18 passes. If the second seal portion 40 has elasticity and the guide portion through-hole 42 has a diameter smaller than that of the guide portion 18, the guide portion 18 is placed downward with the second seal portion 40 attached to the cover portion. Even in this state, the second seal portion 40 is unlikely to come off due to the frictional force with the guide portion 18 .
- FIG. 8 is a view of the cleaner nozzle 1A according to Modification 1 as seen from the direction of the axis Ax.
- a shaft portion 22A (an example of a piston-side suppressing portion) of the cleaner nozzle 1A according to Modification 1 has an oval shape when viewed from the direction of the axis Ax. That is, the shaft portion 22A of Modification 1 does not have the piston-side curved portion 26 and the piston-side flat portion 27 .
- a hole 13A (an example of a cylinder-side restraining portion) through which the shaft portion 22A is inserted also does not have the cylinder-side curved surface portion 16 and the cylinder-side flat surface portion 17. Instead, the hole 13A has an oval shape when viewed from the direction of the axis Ax. are doing.
- the outer peripheral edge of the piston-side suppressing portion has a large radial dimension about the axis Ax when viewed from the direction of the axis Ax of the cylinder 10A. It has a diameter portion 26A and a piston side small diameter portion 27A having a small radial dimension.
- the piston-side large-diameter portion 26A and the piston-side small-diameter portion 27A of the piston-side restraining portion are alternately provided along the circumferential direction.
- the inner peripheral edge of the cylinder-side restraining portion When viewed from the direction of the axis Ax of the cylinder 10A, the inner peripheral edge of the cylinder-side restraining portion has a cylinder-side large-diameter portion 16A with a large radial dimension about the axis Ax and a cylinder-side small-diameter portion 17A with a small radial dimension. have.
- the cylinder-side large-diameter portion 16A and the cylinder-side small-diameter portion 17A of the cylinder-side restraining portion are alternately provided along the circumferential direction.
- the piston-side small-diameter portion 27A faces the cylinder-side small-diameter portion 17A
- the piston-side large-diameter portion 26A faces the cylinder-side large-diameter portion 16A.
- the suppressing portions including the piston-side suppressing portion and the cylinder-side suppressing portion have a flat shape when viewed from the direction of the axis Ax of the cylinder 10A. Therefore, when the piston 20A attempts to rotate relative to the cylinder 10A, the piston-side large-diameter portion 26A comes into contact with the adjacent cylinder-side large-diameter portion 16A due to the flat shape of the restraining portion, causing the piston 20A to move further. rotation is blocked. As a result, it is possible to provide the cleaner nozzle 1A in which the ejection port 23A is less likely to be displaced from the object to be cleaned.
- FIG. 9 is an arrow view of the cleaner nozzle 1B according to Modification 2 as seen from the axial direction.
- the shaft portion 22B and the hole 13B forming the suppressing portion are substantially polygonal.
- substantially polygonal means that the shape is basically polygonal, but may be rounded to the extent that relative rotation can be suppressed.
- the sides of the equilateral triangle may be curved as long as the relative rotation can be suppressed.
- the portions corresponding to the vertices of the equilateral triangles may be rounded.
- the basic shape of the substantially polygonal shape is not limited to a regular polygonal shape.
- the restraining portions provided in the cylinder 10B and the piston 20B are substantially polygonal, the portions corresponding to the vertexes of the substantially polygonal contact with each other. Relative rotation of 10B and piston 20B is suppressed. Accordingly, it is possible to provide the cleaner nozzle 1B in which the ejection port 23B is less likely to be displaced from the object to be cleaned.
- the radial dimension of the restraining portion from the center of rotation changes in the circumferential direction, and when the piston 20B and the cylinder 10B rotate relative to each other, the portion with the large radial dimension of the piston 20B corresponds to the radial dimension of the cylinder 10B.
- the shape of the suppressing portion is not particularly limited as long as it contacts a portion with a small force and prevents relative rotation between the piston 20B and the cylinder 10B.
- FIG. 10 is a perspective view of the cleaner nozzle 101 according to the second embodiment.
- 11 is a cross-sectional view of the XI-XI plane in FIG. 10.
- FIG. 12 is a cross-sectional view taken along the line XII-XII in FIG. 10.
- the ejection port 123 of the cleaner nozzle 101 according to the second embodiment is not provided directly on the piston 20 like the ejection port 23 of the cleaner nozzle 1 according to the first embodiment. It is provided by attaching the portion 150 to the shaft portion 122 of the piston 120 . As shown in FIGS.
- the covering portion 150 be provided so as to contact the periphery of the hole 113 provided in the cap 112 that closes part of the opening of the tubular portion 111 . At this time, it is possible to reduce the inflow of dust and the like from the gap between the hole 113 and the shaft portion 122 of the covering portion 150 .
- FIG. 13 is a cross-sectional view of the XIII-XIII cross section in FIG.
- the shaft portion 122 of the cleaner nozzle 101 in the second embodiment has a projecting portion 126.
- the hole 113 provided in the cap 112 is provided with a concave portion 116 (an example of a suppressing portion) corresponding to the projecting portion 126 .
- a plurality of projecting portions 126 be provided.
- two protrusions 126 are provided across the axis Ax.
- the projecting portion 126 extends in the direction of the axis Ax.
- the displacement of the piston 120 about the axis Ax with respect to the cylinder 110 is suppressed by the concave portion 116 (suppressing portion). Therefore, it is easy to maintain the posture in which the ejection port 123 faces the object to be cleaned. Accordingly, it is possible to provide the cleaner nozzle 101 in which the ejection port 123 is less likely to be displaced from the object to be cleaned.
- the protrusion 126 in the cleaner nozzle 101 extends in the direction of the axis Ax, even if the piston 120 is displaced in the direction of the axis Ax with respect to the cylinder 110, the protrusion 126 and the recess 116 as a suppressing portion can be kept in contact with
- the piston 120 is displaced about the axis Ax with respect to the cylinder 110 compared to the case where only one projecting portion 126 is provided. It becomes easier to suppress things.
- the protrusions 126 of the cleaner nozzle 101 in this embodiment are provided so as to sandwich the axis Ax when viewed from the direction of the axis Ax. That is, since the projecting portion 126 is provided apart, it is easy to more effectively suppress the relative displacement of the piston 120 and the cylinder 110 around the axis Ax.
- the space inside the cylinder 110 in the second embodiment is defined by the first sealing portion 121 as in the cleaner nozzle 1 in the first embodiment. It is divided into S.
- a coil spring 130 is provided inside the spring housing chamber S to keep the piston 120 away from the cap 112, which is an example of a cover.
- a shaft portion 122 that is a part of the piston 120 is provided inside the coil spring 130 . 12 and 13, the projecting portion 126 contacts the inner peripheral surface 130a of the coil spring 130 to support the coil spring 130. As shown in FIGS.
- the cap 112 is provided with a guide portion 118 extending rearward in the direction of the axis Ax (on the side opposite to the ejection port 123). It is desirable that the guide portion 118 has an arc shape when viewed from the direction of the axis Ax. As shown in FIG. 13 , the guide portion 118 is inserted into the space formed by the outer wall surface of the shaft portion 122 including the projecting portion 126 and the inner peripheral surface 130 a of the coil spring 130 . In this embodiment, since two projecting portions 126 are provided, there are also two such spaces. A guide portion 118 is inserted into each of the two spaces. At this time, it is desirable that the guide portion 118 also contacts the inner peripheral surface 130 a of the coil spring 130 to support the coil spring 130 .
- FIG. 14 is an exploded perspective view of the cleaner nozzle 101 in the second embodiment.
- 15 is a cross-sectional view taken along the line XV-XV in FIG. 13.
- FIG. 15 does not show the coil spring 130 and the covering portion 150 for convenience of explanation.
- the cap 112 is attached to the cylindrical portion 111 by inserting and fitting the guide portion 118 provided on the cap 112 into the space formed by the piston 120 including the projecting portion 126 and the inner peripheral surface 130a of the coil. be done.
- the projecting portion 126 is the main body, and the projecting portion 126 is accommodated in the gap between the guide portions 118 .
- the gap between the guide portions 118 is formed so as to widen toward the tip of the guide portion 118 .
- the guide portion 118 has a shape such that it is separated from the projecting portion 126 toward its tip.
- the coil spring 130 of the cleaner nozzle 101 in this embodiment is supported by the protruding portion 126, the coil spring 130 is less likely to shift with respect to the cylinder 110. As a result, even if the coil spring 130 repeats expansion and contraction, the direction of the biasing force of the coil spring 130 is less likely to change, so that the piston 120 that has been displaced toward the cap 112 that is the covering portion can be easily returned to its original position.
- the piston 120 is inserted into the cylindrical portion 111, and the guide portion 118 of the cap 112 moves into the space formed by the outer wall surface of the piston 120 including the projecting portion 126 and the coil spring 130. be fitted in. Therefore, it becomes easy to attach the cap 112 , which is a separate covering portion, to the cylindrical portion 111 . Thereby, the cleaner nozzle 101 can be easily assembled.
- the plurality of protruding portions 126 are provided so as to be accommodated in the gaps of the guide portion 118 .
- the projecting portion 126 and the guide portion 118 come into contact with each other. This further suppresses the relative displacement between the piston 120 and the cylinder 110 around the axis Ax.
- the gap between the arc-shaped guide portions 118 has a shape that widens toward the tip (forward in the direction of the axis Ax). At this time, since the tip of the gap is widened, the guide portion 118 can be easily inserted into the space formed by the outer wall surface of the piston 120 including the projecting portion 126 and the coil spring 130 .
- the assembly method according to the present embodiment is a process of attaching the cap 112, which is the covering portion, to the cylindrical portion 111 so that the guide portion 118 is inserted into the space formed by the outer wall surface of the piston 120 including the projecting portion 126 and the coil spring 130. including.
- the cap 112 by attaching the cap 112 to the tubular portion 111 so as to insert the guide portion 118 into the space formed by the outer wall surface of the piston 120 including the projecting portion 126 and the coil spring 130, the position and orientation of the cap 112 are determined. to induce Since the space closed by the cylindrical portion 111 and the cap 112 cannot be visually recognized by the operator, it is difficult to assemble with high accuracy. However, since the space into which the guide portion 118 is inserted is already defined as the space formed by the outer wall surface of the piston 120 including the projecting portion 126 and the coil spring 130, the cleaner nozzle 101 can be assembled with high accuracy.
- the piston 120 of the cleaner nozzle 101 in the second embodiment has a restriction portion 160.
- the restricting portion 160 is provided so as to project radially from the shaft portion 122 of the piston 120 .
- the projecting portion 126 and the restricting portion 160 are provided at intervals of 90° in the circumferential direction (around the axis Ax) of the shaft portion 122. It is desirable that
- FIG. 16A and 16B are diagrams illustrating regulation of stroke amount Ls by regulation portion 160 and guide portion 118.
- FIG. 16A is an enlarged view of area A in FIG. 12.
- FIG. The state shown in FIG. 16A is a state in which restricting portion 160 and guide portion 118 are separated.
- the state shown in FIG. 16B is a state in which piston 120 is displaced forward in the direction of axis Ax with respect to cylinder 110 from the state shown in FIG. When the restriction portion 160 and the guide portion 118 contact each other, the piston 120 cannot be displaced further in the direction of the axis line Ax.
- the rear end portion of the guide portion 118 in the direction of the axis Ax determines the front limit position of the displacement of the piston 120 in the direction of the axis Ax.
- the required stroke amount of the piston may differ depending on the type of vehicle in which the cleaner nozzle is mounted. This is because the distance between the position where the cleaner nozzle is mounted and the object to be cleaned such as the sensor may vary depending on the vehicle model. Even if the stroke amount Ls required for each vehicle type differs in this way, according to the cleaner nozzle 101 of the present embodiment, there is no need to redesign the entire cleaner nozzle 101, and only the cap 112 including the guide portion 118 can be replaced. The length may be designed according to the required stroke amount Ls. Therefore, it is possible to realize the cleaner nozzle 101 that is easily compatible with various vehicle types.
- the guide portions 118 and the restricting portion 160 can contact each other at a plurality of points. Thereby, the stroke amount Ls of the piston 120 can be regulated more effectively.
- the plurality of guide portions 118 are provided apart from each other so as to sandwich the axis Ax, the contact state between the guide portions 118 and the restricting portion 160 is likely to be stable. As a result, when the stroke amount Ls of the piston 120 is regulated, it is possible to prevent the piston 120 from moving in an unintended direction.
- the movement of the coil spring 130 with respect to the cap 112 and the cylinder 110 is restricted by the guide portion 118 supporting the inner peripheral surface 130a of the coil spring 130 .
- the radial position of the coil spring 130 with respect to the cylinder 110 is less likely to shift.
- the suppression part does not necessarily have to be provided in the cover part.
- the piston and the cylinder may come into contact with each other to suppress relative rotation of the piston and the cylinder about the axis.
- Japanese patent application Japanese Patent Application No. 2021-166302
- Japanese patent application Japanese Patent Application No. 2021-166303
- Contents disclosed in the Japanese patent application Japanese patent application No. 2021-166304 filed on October 8, 2021
- the Japanese patent application Japanese patent application No. 2021-166305 filed on October 8, 2021 are incorporated as appropriate.
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Abstract
Description
ところで、コイルばねがシリンダの内部で径方向の位置がずれてしまうと、コイルバネがピストンに一様に弾性復元力を作用させることができなくなってしまう。すると、ピストンを元の位置に戻せなくなったり、あるいは、コイルばねの弾性復元力に抗してピストンを押し出して洗浄液を吐出させる際に、その吐出位置や吐出姿勢が本来の位置や姿勢からずれたりしてしまう。
ところで、車種によってクリーナノズルと洗浄対象物の位置関係が異なることがあるので、洗浄対象物へ確実に洗浄液を塗布するために、ピストンの軸線方向への変位量(ストローク量)を調整することが求められる。このため、車種ごとに求められるピストンのストローク量は異なっている。しかしながら、求められるストローク量に応じて、異なる仕様のクリーナノズルをその都度設計するのは手間がかかる。
軸線方向に延びる筒状のシリンダと、
噴出口を有し、前記シリンダ内で前記軸線方向に変位可能なピストンと、を備えるクリーナノズルであって、
前記ピストンおよび前記シリンダには、互いに接触することにより、前記シリンダと前記ピストンの前記軸線回りの相対変位を抑制する抑制部が設けられている。
軸線方向に延びる筒状のシリンダと、
噴出口を有し、前記シリンダ内で前記軸線方向に変位可能なピストンと、を備えるクリーナノズルであって、
前記ピストンは、前記シリンダの径方向に突出した突出部を有し、
前記シリンダには、前記突出部と接触することにより、前記シリンダに対する前記ピストンの前記軸線回りの変位を抑制する抑制部が設けられている。
筒状のシリンダと、
前記シリンダの内で前記シリンダの軸線方向に変位することが可能なピストンと、
を備えるクリーナノズルであって、
前記シリンダは、開口の少なくとも一部を覆う覆い部を有し、
前記シリンダ内部には、前記ピストンを前記覆い部から遠ざけるコイルばねが設けられており、
前記覆い部には、前記軸線方向の前記コイルばね側に延びて前記コイルばねに接触するガイド部が設けられている。
筒状のシリンダと、
前記シリンダに対して前記シリンダの軸線方向に変位可能なピストンと、を備えるクリーナノズルであって、
前記シリンダは、筒状部と、前記筒状部とは別体の前記筒状部の開口の少なくとも一部を覆う覆い部とを有し、
前記覆い部には、前記軸線方向に延び、前記ピストンに接触することにより前記ピストンの前記軸線方向への変位可能な長さを規制するガイド部が設けられている。
まず、第一実施形態のクリーナノズル1を説明する。図1は第一実施形態に係るクリーナノズル1が車両に取り付けられた様子を示す断面図である。クリーナノズル1は、車両に取り付けられており、車両に搭載されたカメラやLiDAR(などのセンサWを洗浄する。クリーナノズル1は、シリンダ10とピストン20とを有する。シリンダ10の先端部には、洗浄液を噴出することが可能な噴出口23が設けられている。
ピストン20がシリンダ10に対して相対変位することにより、噴出口23から洗浄液が噴出される。また、クリーナノズル1がセンサWを洗浄するとき、ピストン20はシリンダ10の軸線Ax方向に変位し、クリーナノズル1がセンサWを洗浄しないときと比べて、噴出口23がセンサWに近い位置まで移動する。この状態で、噴出口23から洗浄液が噴出されることで、センサWを洗浄することができる。つまり、クリーナノズル1は作動時のみ噴出口23が車両の意匠面から突出し、その非作動時には噴出口23が車両の意匠面から突出しないように構成できる。これにより、クリーナノズル1を搭載しても車両の意匠性を損ねにくい。
また、本実施形態において、覆い部(キャップ12)は筒状部11の一方の端部に設けられているが、筒状部11の内部に覆い部が設けられていてもよい。
ばね収容室Sには、空気出入口14が設けられている。ピストン20が軸線Ax方向に変位してキャップ12に近づくと、ばね収容室Sの体積は小さくなるので、その分のばね収容室Sの内部の空気が空気出入口14から流出する。逆に、ピストン20がキャップ12から遠ざかる方向に変位すると、ばね収容室Sの体積は増加するので、ばね収容室Sの内部に空気が、空気出入口14を通って流入する。これにより、ばね収容室Sの静圧の変化が抑制でき、コイルばね30により円滑にピストン20を変位させることができる。
軸部22の内部には、内部流路22aが設けられている。内部流路22aは、水圧室Pと連通している。また、内部流路22aは、噴出口23とも連通している。
センサWの洗浄が終了すると、供給源から洗浄液の供給を停止する。コイルばね30の弾性復元力によりピストン20はキャップ12から遠ざかる方向に変位し、洗浄開始前の位置に戻る。
ところが、ピストン20がシリンダ10に対して軸線Ax方向に変位を繰り返すと、意図せずピストン20がシリンダ10に対して軸線Ax回りに回転することがある。
また、平面同士を突き当てることにより高い再現性でピストン20とシリンダ10の軸線Ax回りの相対変位を所定の範囲内に収めることができる。
キャップ12は、コイルばね30に接してコイルばね30を保持するガイド部18を有する。図4に示すように、ガイド部18は噴出口23とは反対側に延びている。すなわち、ガイド部18は、ばね収容室Sの内部に延びている。
また、第二シール部40は、ガイド部18が貫通するガイド部貫通孔42を持つ。第二シール部40が伸縮性を有し、かつ、ガイド部貫通孔42がガイド部18よりも小径であれば、覆い部に第二シール部40を取り付けた状態で、ガイド部18を下にした状態にしても、第二シール部40がガイド部18との摩擦力により脱落しにくい。
次に、第一実施形態に係るクリーナノズル1Aの変形例について説明する。図8は、変形例1に係るクリーナノズル1Aを軸線Ax方向から見た矢視図である。変形例1に係るクリーナノズル1Aの軸部22A(ピストン側抑制部の一例)は、軸線Ax方向から見て長円形状をなしている。つまり、変形例1の軸部22Aは、ピストン側曲面部26およびピストン側平面部27を有していない。軸部22Aが挿通される孔13A(シリンダ側抑制部の一例)も、シリンダ側曲面部16およびシリンダ側平面部17を有さない代わりに、孔13Aは軸線Ax方向から見ると長円形状をしている。
図9は、変形例2に係るクリーナノズル1Bの軸線方向から見た矢視図である。変形例2に係るクリーナノズル1Bにおいて、抑制部をなす軸部22Bおよび孔13Bは略多角形である。「略多角形」は、基本的には多角形型であるが、相対回転を抑制できる程度に丸みを帯びていてもよいことを表している。例えば、図9に示すように、相対回転を抑制できるのであれば、正三角形の辺の部分が、湾曲していても構わない。また、相対回転を抑制できるのであれば、正三角形の頂点に相当する部分が丸みを帯びていても構わない。また、略多角形の基本となる形状は、正多角形に限定されない。
次に、第二実施形態に係るクリーナノズル101について説明する。図10は、第二実施形態に係るクリーナノズル101の斜視図である。図11は、図10におけるXI-XI面の断面矢視図である。図12は、図10におけるXII-XII断面の断面矢視図である。
第二実施形態に係るクリーナノズル101の噴出口123は、第一実施形態に係るクリーナノズル1の噴出口23のようにピストン20に直接設けられているのではなく、噴出口123を備えた被せ部150をピストン120の軸部122に取り付けることにより設けられている。図11および図12に示すように、被せ部150は、筒状部111の開口の一部を塞ぐキャップ112に設けられた孔113の周囲と接するように設けられることが望ましい。このとき、被せ部150が孔113と軸部122との隙間から、塵などが流入することを低減できる。
このとき、ガイド部118も、コイルばね130の内周面130aに接触して、コイルばね130を支持していることが望ましい。
クリーナノズル101の組立の際には、まず、シリンダ110の筒状部111に、第一シール部121を取り付けたピストン120を挿入する。
次に、ピストン120にコイルばね130を取り付ける。このとき、ピストン120の軸部122に設けられた突出部126は、コイルの内周面130aに接触している。
その次に、筒状部111とは別体のキャップ112を筒状部111に取り付ける。このとき、キャップ112に設けられたガイド部118を、突出部126を含むピストン120とコイルの内周面130aとがなす空間に挿入して嵌め込むことで、キャップ112が筒状部111に取り付けられる。突出部126を主体として換言すると、突出部126はガイド部118同士の隙間に収容される。
本実施形態におけるクリーナノズル101によれば、筒状部111の中にピストン120を挿入し、キャップ112のガイド部118が、突出部126を含むピストン120の外壁面とコイルばね130とがなす空間に嵌め込まれる。このため、別体の覆い部であるキャップ112を筒状部111に対して取り付けることが容易となる。これにより、クリーナノズル101を簡単に組み立てることができる。
筒状部111とキャップ112とで閉塞される空間は、作業者からは視認することができないので、精度よく組み立てるのが難しい。しかし、突出部126を含むピストン120の外壁面とコイルばね130とがなす空間としてガイド部118が挿入される空間が既に規定されているので、クリーナノズル101を精度よく組み立てることができる。
図16Aに示した状態は、規制部160とガイド部118とは離隔した状態である。一方、図16Bに示した状態は、図16Aに示した状態からピストン120がシリンダ110に対して軸線Ax方向の前方に変位して、規制部160がガイド部118と接触した状態である。規制部160とガイド部118とが接触すると、ピストン120がこれ以上軸線Ax方向に変位できない。つまり、ガイド部118の軸線Ax方向の後端部がピストン120の軸線Ax方向の変位の前方限界位置を決定している。軸線Ax方向のガイド部118の長さLgを調節することにより、ピストン120のストローク量Ls(軸線Ax方向の変位可能長さ)を調節することができる。
このように車種ごとに求められるストローク量Lsが異なる場合でも、本実施形態に係るクリーナノズル101によれば、クリーナノズル101の全体を再設計する必要がなく、ガイド部118を含むキャップ112のみを求められるストローク量Lsに応じた長さに設計すればよい。このため、様々な車種に対応しやすいクリーナノズル101を実現できる。
また、複数のガイド部118は、軸線Axを挟むように互いに離れて設けられているので、ガイド部118と規制部160とが接触状態において安定しやすい。これにより、ピストン120のストローク量Lsを規制した際に、意図しない向きにピストン120が移動することを抑制できる。
Claims (26)
- 軸線方向に延びる筒状のシリンダと、
噴出口を有し、前記シリンダ内で前記軸線方向に変位可能なピストンと、を備えるクリーナノズルであって、
前記ピストンおよび前記シリンダには、互いに接触することにより、前記シリンダと前記ピストンの前記軸線回りの相対変位を抑制する抑制部が設けられている、クリーナノズル。 - 前記抑制部は、前記ピストンに設けられたピストン側平面部と、前記ピストン側平面部に向かい合う前記シリンダに設けられたシリンダ側平面部である、請求項1に記載のクリーナノズル。
- 前記シリンダは、開口の少なくとも一部を覆う覆い部を有し、
前記覆い部には、前記ピストンが挿通される孔が設けられており、
前記孔を構成する前記覆い部の一部と前記ピストンの前記孔に接する部位とが前記抑制部を構成している、請求項1または2に記載のクリーナノズル。 - 前記シリンダは、筒状部と、前記筒状部と別体で前記筒状部の開口の少なくとも一部を覆う覆い部と、を有し、
前記覆い部には、前記噴出口と反対側に延びるガイド部が設けられており、
前記ガイド部は、前記ピストン側平面部と対向する平坦面を有している、請求項2または3に記載のクリーナノズル。 - 前記シリンダ側平面部および前記ピストン側平面部はそれぞれ、少なくとも2つ以上設けられる、請求項2から4のいずれか一項に記載のクリーナノズル。
- 少なくとも2つ以上の前記シリンダ側平面部は、前記軸線方向から見て前記軸線を挟むように設けられている、請求項5に記載のクリーナノズル。
- 前記ピストンは、前記シリンダの内壁と水密に接するシール部と、内部流路とを有し、
前記シリンダは、前記覆い部と前記シール部との間に形成されるばね収容室と、前記シール部よりも前記覆い部と反対側に設けられて前記内部流路と連通する水圧室とに区画され、
前記ばね収容室には、前記ピストンを前記覆い部から遠ざけるコイルばねが設けられている、請求項3に記載のクリーナノズル。 - 前記抑制部は、前記シリンダの軸線方向から見ると、扁平な形状を成している、請求項1に記載のクリーナノズル。
- 抑制部は、前記シリンダの軸線方向から見ると、略多角形である、請求項1に記載のクリーナノズル。
- 軸線方向に延びる筒状のシリンダと、
噴出口を有し、前記シリンダ内で前記軸線方向に変位可能なピストンと、を備えるクリーナノズルであって、
前記ピストンは、前記シリンダの径方向に突出した突出部を有し、
前記シリンダには、前記突出部と接触することにより、前記シリンダに対する前記ピストンの前記軸線回りの変位を抑制する抑制部が設けられている、クリーナノズル。 - 前記突出部は、前記軸線方向に延びている、請求項10に記載のクリーナノズル。
- 前記突出部は、少なくとも2つ以上設けられる、請求項10または11に記載のクリーナノズル。
- 少なくとも2つ以上の前記突出部は、前記軸線方向から見て前記軸線を挟むように設けられている、請求項12に記載のクリーナノズル。
- 前記シリンダは、その開口の少なくとも一部を覆う覆い部を有し、
前記シリンダの内部には、前記ピストンを前記覆い部から遠ざけるコイルばねが設けられており、
前記突出部は前記コイルばねの内周面を支持している、
請求項10に記載のクリーナノズル。 - 前記シリンダは、筒状部と、前記筒状部とは別体の前記筒状部の開口の少なくとも一部を覆う前記覆い部とを有し、
前記覆い部には、前記軸線方向の前記噴出口と反対側に延びるガイド部が設けられており、
前記ガイド部は、前記突出部を含む前記ピストンの外壁面と前記コイルばねとがなす空間に配置される、請求項14に記載のクリーナノズル。 - 前記軸線方向から見て、前記ガイド部は円弧状であり、
前記軸線方向に延びる前記ガイド部同士の隙間は、先端に向かうほど広がっている、請求項15に記載のクリーナノズル。 - 請求項15または16に記載のクリーナノズルを組み立てるクリーナノズルの組立方法であって、前記組立方法は、
前記筒状部に、前記ピストンを挿入する第1ステップと、
前記コイルばねの内周面に前記ピストンの前記突出部が接触するように、前記ピストンに前記コイルばねを取り付ける第2ステップと、
前記突出部を含む前記ピストンの外壁面と前記コイルばねとがなす空間に前記ガイド部を挿入するように、前記筒状部に前記覆い部を取り付ける第3ステップと、を含むクリーナノズルの組立方法。 - 筒状のシリンダと、
前記シリンダの内で前記シリンダの軸線方向に変位することが可能なピストンと、
を備えるクリーナノズルであって、
前記シリンダは、開口の少なくとも一部を覆う覆い部を有し、
前記シリンダ内部には、前記ピストンを前記覆い部から遠ざけるコイルばねが設けられており、
前記覆い部には、前記軸線方向の前記コイルばね側に延びて前記コイルばねに接触するガイド部が設けられている、クリーナノズル。 - 前記ガイド部は、前記コイルばねの内周面を支持している、請求項18に記載のクリーナノズル。
- 前記ガイド部は、前記軸線方向から見て前記軸線を挟むように設けられている少なくとも2つ以上設けられる、請求項18に記載のクリーナノズル。
- 前記ピストンは、前記シリンダの径方向に突出し、前記軸線方向に延びる筋状の突出部を有し、
2つ以上設けられた前記ガイド部の隙間に、前記突出部が収容される、
請求項19に記載のクリーナノズル。 - 前記ピストンは、前記シリンダの内壁と水密に接する第一シール部と、内部流路とを有し、
前記シリンダは、前記覆い部と前記第一シール部との間に形成されるばね収容室と、前記第一シール部よりも前記覆い部と反対側に設けられて前記内部流路と連通する水圧室とに区画され、
前記コイルばねは、前記ばね収容室に設けられている、請求項18~21のいずれか一項に記載のクリーナノズル。 - 前記覆い部と前記コイルばねとの間に、第二シール部が設けられ、
前記第二シール部は、前記ピストンと前記ガイド部とがそれぞれ貫通する貫通孔を有する、請求項18~22のいずれか一項に記載のクリーナノズル。 - 筒状のシリンダと、
前記シリンダに対して前記シリンダの軸線方向に変位可能なピストンと、を備えるクリーナノズルであって、
前記シリンダは、筒状部と、前記筒状部とは別体の前記筒状部の開口の少なくとも一部を覆う覆い部とを有し、
前記覆い部には、前記軸線方向に延び、前記ピストンに接触することにより前記ピストンの前記軸線方向への変位可能な長さを規制するガイド部が設けられている、クリーナノズル。 - 前記ガイド部は、前記軸線方向から見て前記軸線を挟むように少なくとも2つ以上設けられている、請求項24に記載のクリーナノズル。
- 前記シリンダ内部には、前記ピストンを前記覆い部から遠ざけるコイルばねが設けられており、
前記ガイド部は、前記コイルばねの内周面を支持している、
請求項24または25に記載のクリーナノズル。
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Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001347930A (ja) * | 2000-06-08 | 2001-12-18 | Asmo Co Ltd | 噴射ノズル |
JP2002173006A (ja) * | 2000-12-07 | 2002-06-18 | Asmo Co Ltd | ヘッドランプクリーナ |
JP2003025972A (ja) * | 2001-07-13 | 2003-01-29 | Ichikoh Ind Ltd | ランプクリーナシステム |
JP2006151152A (ja) * | 2004-11-29 | 2006-06-15 | Koito Mfg Co Ltd | 車輌用灯具の洗浄装置 |
JP2017024712A (ja) * | 2015-07-22 | 2017-02-02 | ヴァレオ システム デシュヤージュValeo Systemes D’Essuyage | 自動車用のセンサ洗浄装置 |
JP2018034646A (ja) | 2016-08-31 | 2018-03-08 | アスモ株式会社 | 車載光学センサ洗浄装置 |
JP2021166303A (ja) | 2014-03-14 | 2021-10-14 | 株式会社半導体エネルギー研究所 | 半導体装置 |
JP2021166302A (ja) | 2016-11-15 | 2021-10-14 | アドバンストマテリアルテクノロジーズ株式会社 | 成膜装置及び膜構造体 |
JP2021166304A (ja) | 2016-04-25 | 2021-10-14 | ソニーグループ株式会社 | 固体撮像素子 |
JP2021166305A (ja) | 2018-07-20 | 2021-10-14 | 株式会社Fuji | 部品実装機 |
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Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001347930A (ja) * | 2000-06-08 | 2001-12-18 | Asmo Co Ltd | 噴射ノズル |
JP2002173006A (ja) * | 2000-12-07 | 2002-06-18 | Asmo Co Ltd | ヘッドランプクリーナ |
JP2003025972A (ja) * | 2001-07-13 | 2003-01-29 | Ichikoh Ind Ltd | ランプクリーナシステム |
JP2006151152A (ja) * | 2004-11-29 | 2006-06-15 | Koito Mfg Co Ltd | 車輌用灯具の洗浄装置 |
JP2021166303A (ja) | 2014-03-14 | 2021-10-14 | 株式会社半導体エネルギー研究所 | 半導体装置 |
JP2017024712A (ja) * | 2015-07-22 | 2017-02-02 | ヴァレオ システム デシュヤージュValeo Systemes D’Essuyage | 自動車用のセンサ洗浄装置 |
JP2021166304A (ja) | 2016-04-25 | 2021-10-14 | ソニーグループ株式会社 | 固体撮像素子 |
JP2018034646A (ja) | 2016-08-31 | 2018-03-08 | アスモ株式会社 | 車載光学センサ洗浄装置 |
JP2021166302A (ja) | 2016-11-15 | 2021-10-14 | アドバンストマテリアルテクノロジーズ株式会社 | 成膜装置及び膜構造体 |
JP2021166305A (ja) | 2018-07-20 | 2021-10-14 | 株式会社Fuji | 部品実装機 |
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