JP2003137077A - Anti-scattering water discharging head of car washer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an anti-scattering cover of a car washer having (1) followability to a cleaned surface, (2) a protecting operation of the cleaned surface, and (3) exchange easiness of components. SOLUTION: In this anti-scattering water discharging head 25, the anti- scattering cover 1 is mounted to a water discharging nozzle 4 of the car washer for discharging cleaning water W. The anti-scattering cover 1 comprises a frustum-like synthetic resin cover part 14 having a widening opening downward, flexibility and no side edge, and an annular contact surface buffer part 16 mounted to a lower peripheral edge 15 of the synthetic resin cover part 14, having air permeability and flexibility. The upper peripheral edge 13 of the synthetic resin cover part 14 is mounted to the periphery of the water discharging nozzle 4 of the anti-scattering water discharging head 25 to surround the water discharging nozzle 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a splash prevention water discharge head in which a splash prevention cover is attached to a water discharge nozzle of a car wash tool for discharging wash water.

[0002]

2. Description of the Related Art For cleaning automobiles, for example, various car wash tools have been proposed which can be carried by a hand so that an owner can individually wash the car. In recent years, in addition to the use of water discharge and a cleaning liquid, a car wash tool in which a cleaning brush is improved by using a rotating brush that rotates by utilizing a water flow at the time of water discharge in a water discharge part is also seen. In this case, there is also a cleaning tool provided with an anti-scattering cover made of a non-breathable member such as a metal plate or a plastic plate that covers the rotating brush in order to prevent water from being scattered by the rotating brush (for example, Japanese Patent Laid-Open No. 09-1321).
No. 21 "Car wash" etc.)

Many other cleaning tools are also devised to prevent water from splashing. JP 07-3
28556 "Cleaning tool" or JP 07-328557 "Cleaning tool"
Is a tool for cleaning the inner walls of buildings and tunnels, but each is equipped with a shatterproof cover with a similar external shape. The former shatterproof cover comprises a net knitted in a grid pattern and a support member, and has a deformable closing body attached to the edge. This scattering prevention cover allows the pressure inside the cover to escape to the outside due to the air permeability of the net. Further, the latter scattering prevention cover is made of a non-water-permeable member (metal plate), but is provided with a breathable portion (ventilation hole) so that the pressure inside the cover is released to the outside of the cover.

[0004]

In the shatterproof cover disclosed in Japanese Patent Laid-Open No. 07-328556, the outer shape of the cover is not specified, but a truncated pyramid shape is given as an example. Since the concrete anti-scattering cover has a net stretched between the support members configured in the shape of a truncated pyramid, it seems that the cover shape has shape retention and does not easily deform. . Therefore, the gap created by the unevenness of the surface to be cleaned is closed by the deformation of the closing body attached to the edge. However, if the surface to be cleaned itself is greatly curved (e.g., the outer surface of an automobile), it cannot be followed only by the deformation of the closing body, and as a result, there is a possibility that a gap may occur between the scattering prevention cover and the surface to be cleaned. . JP 07-328
Since No. 556 and the like target the wall surfaces of buildings with many flat surfaces, this viewpoint was lacking ((1) Lack of followability to the surface to be cleaned).

Further, the blocking body of the shatterproof cover disclosed in Japanese Patent Laid-Open No. 07-328556 is attached continuously to the edge of the net. Usually, since it is on the extension line of the edge of the net that contacts the surface to be cleaned, it seems that there is no possibility that the edge of the net will come into contact with the object to be cleaned even with the above-mentioned manner of attaching the closing body. However, in practice, in order to close the gap with the object to be cleaned as described above, the scattering prevention cover is moved back and forth, left and right while pressing the block against the surface to be cleaned. Can not be denied the possibility of touching the object to be cleaned. The function of the closing body is not only to close the gap with the surface to be cleaned but also to protect the surface to be cleaned from damage. That is, such a viewpoint was lacking in the shatterproof cover of Japanese Patent Laid-Open No. 07-328556 ((2) Lack of protective action for the surface to be cleaned).

In addition, the closed body comes into contact with the surface to be cleaned most,
It is easy to get dirty, so it is desirable to be able to replace it.
If it is attached like a shatterproof cover such as 07-328556, it will be difficult to replace it. In this case, it is easy to adopt a replaceable structure, but in practice, it is necessary that the procedure is easy. In addition, a structure or configuration that realizes the above-mentioned ease must be one that can be provided at low cost ((3) Ease of exchanging parts). Therefore, an investigation was conducted in order to develop a splash-preventing water discharge head having the above-described (1) followability to the surface to be cleaned, (2) protective action of the surface to be cleaned, and (3) easy replacement of parts.

[0007]

[Means for Solving the Problems] What has been developed as a result of the study is a scattering prevention water discharge head in which a scattering prevention cover is attached to a water discharge nozzle of a car wash tool for discharging cleaning water.
The shatterproof cover has a frustum-shaped frustum-shaped synthetic resin cover part that has flexibility and expands downward, and breathability and flexibility to be attached to the lower peripheral edge part of this synthetic resin cover part. The synthetic resin cover part is a splash preventive water discharge head for a car wash tool in which an upper peripheral portion is attached around the water discharge nozzle of the splash preventive water discharge head so as to surround the water discharge nozzle. "Frustum shape without side edges" according to the present invention
Is basically a truncated cone shape (including a cone, an elliptic truncated cone, or an elliptical cone), but even if it looks like a truncated pyramid shape or a truncated pyramid shape, the side edges (corners) are smooth and continuous curved surfaces. If it is, the bias of the deformation described later is suppressed, and thus it is included in the present invention.

In the splash prevention water discharge head of the present invention, first, (a) both the synthetic resin cover portion and the contact surface cushioning portion constituting the cover are deformed so that the entire splash prevention cover attached can be deformed following the surface to be cleaned. Added flexibility. However, since the synthetic resin cover has a three-dimensional shape surrounding the water discharge nozzle, the deformation of the material is biased only by the flexibility of the material, and the followability to the surface to be cleaned becomes insufficient. Therefore, in the present invention, further, (b) the synthetic resin cover portion is specified as a truncated cone shape without side edges, basically a truncated cone shape, to eliminate the bias of deformation and to perform constant deformation in any direction. The following shows that the followability to the surface to be cleaned is improved (the above (1) Solution to followability to the surface to be cleaned).

The contact surface cushioning portion of the present invention is a foamed resin molded body mounted so as to surround the lower peripheral edge portion of the synthetic resin cover portion. It is easy to form the contact surface cushion formed of the foamed resin molded body in an annular shape with a cross section surrounding the lower peripheral edge of the synthetic resin cover portion. It eliminates the risk that the lower peripheral edge of the cover will come into contact with the surface to be cleaned ((2) Solution to the effect of protecting the surface to be cleaned). The cross-sectional shape of the contact surface buffer portion formed of this foamed resin molded body is free. Since the foamed resin molded body is relatively flexible, the surface to be cleaned will not be damaged even if the cross section has an angle. Rather, at least the lower surface of the contact surface cushioning portion should be flat so that the contact surface cushioning portion can be easily pressed against the surface to be cleaned. The air permeability of the contact surface cushioning portion has a function of releasing the internal pressure when the scattering prevention cover is brought into close contact with the surface to be cleaned.

Further, the contact surface cushioning portion is provided with an annular notch into which the lower peripheral edge portion of the synthetic resin cover portion is inserted, so that the lower peripheral edge portion can be detachably attached ((3) Easy replacement of parts) Sexual resolution). In the present invention, since the synthetic resin cover to which the contact surface cushioning part is attached adopts a truncated cone shape without side edges,
The lower peripheral edge portion widens downward in the radial direction. Therefore, the annular notch provided in the contact surface cushioning portion similarly expands downward in the radial direction, that is, the slot of the notch has a smaller radius than the lower peripheral edge of the cover. Since the contact surface cushioning part expands due to its flexibility and elasticity, it inserts the lower peripheral edge of the cover, so it does not come off during use of the cleaning tool, but it can be easily removed if the user pushes it apart. it can. In this way, the attachment / detachment of the contact surface buffer portion is realized.

The contact surface cushioning portion may be a fur molded body (a brush made of animal hair, mouton, etc.), or a brush molded body (a brush-shaped brush made of a flexible synthetic resin needle) in addition to the foamed molded body. Etc.) In any case, the synthetic resin cover may be mounted so as to surround the lower peripheral edge of the synthetic resin cover so that the lower peripheral edge does not contact the surface to be cleaned under any circumstances. Any molded body can deform the contact surface shape following the deformation of the synthetic resin cover portion, and since there is air permeability between animal hair or flexible synthetic resin needles, the pressure inside the synthetic resin cover portion can be reduced. Can escape to the outside.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing an example of a car wash having a shatterproof water discharge head 25 to which the shatterproof cover 1 of the present invention is attached, and FIG. 2 is a shatterproof water discharge head.
Fig. 3 is a vertical cross-sectional view of the excerpt of 25.
FIG. 5 is a plan view showing an excerpt of 25, FIG. 4 is a vertical sectional view corresponding to FIG. Two
6 is a plan view corresponding to FIG. 3 showing the same state. This example is an example of the splash-preventing water discharge head 25 in which the splash-preventing cover 1 is attached to the mounting base 12 that projects the water discharge nozzle 4 of the car wash tool that the user holds and uses the handle 3.

The car wash tool itself is of a commonly found construction, as seen in FIG. At the rear end of the long handle 3 held by the user, there are a medicine tank mounting portion 6 of the medicine tank 5 and a hose connecting portion 8 of a hose 7, and the medicine tank mounting portion 6
By pulling the trigger 9 of, the washing water W, which is a mixture of water and a chemical (washing liquid), is provided at the tip of the handle 3 (see FIG. 2).
(See reference). The medicine tank 5 is detachable, and various mixing means for water can be used. Hose connection part 8
Insert the hose 7 into the connection body 10,
The hose 7 is fixed by screwing the tightening ring 11 screwed onto the screw 10.

As shown in FIGS. 2, 3 and 4, the shatterproof cover 1, which is a main component of the shatterproof water discharge head 25, has an upper peripheral edge on a mounting base 12 provided at the tip of the handle 3 of the car wash tool. Frustum-shaped synthetic resin cover part 14 with part 13 attached
And a contact surface buffer portion 16 made of a foamed resin molding having a parallelogrammatic cross section and an annular shape in a plan view, which is attached to the lower peripheral edge portion 15 of the synthetic resin cover portion 14. Synthetic resin cover part of this example
14 is a transparent vinyl chloride sheet and has a flat surface to be cleaned.
Even when the shatterproof cover 1 is closely attached to the 17, the water discharge status of the water discharge nozzle 4 can be visually confirmed from the outside.
As shown in FIG. 4, the synthetic resin cover portion 14 contacts the upper peripheral edge portion 13 with the inner surface 18 of the truncated cone, which is the lower surface of the mounting base portion 12,
The bolts 19 and 19 are clamped by a holding block 20 which is fastened to the splash prevention water discharge head 12, and attached around the water discharge nozzle 4.

The contact surface cushioning portion 16 is made of urethane foam having a parallelogrammatic cross section and an annular shape in a plan view, and is provided with a notch 21 into which the lower peripheral edge portion 15 of the synthetic resin cover portion 14 is inserted. At the time of use, the lower peripheral edge portion 15 of the synthetic resin cover portion 14 is simply inserted into the notch 21, and it is not particularly necessary to fix it. As is apparent from FIG. 2, since the cut end 23 is located outside the cut opening 22 in the radial direction, there is no possibility that the contact surface cushioning portion 16 will come off from the synthetic resin cover portion 14 in normal use. In this way, since the contact surface cushioning portion 16 only inserts the lower peripheral edge portion 15 of the synthetic resin cover portion 14,
Easy to put on and take off. At the time of attachment / detachment, the flexibility of the contact surface cushioning portion 16 is utilized, and the user deforms the contact surface cushioning portion 16 to attach or detach it.

In the car wash tool of this embodiment, the contact surface cushioning portion 16 is provided on the surface to be cleaned.
Since the water is discharged from the water discharge nozzle 4 in a state of being in contact with the surface 17, the cleaning water W is surrounded by the synthetic resin cover portion 14, the contact surface buffer portion 16 and the surface to be cleaned 17, as is apparent from FIGS. 2 and 3. It scatters only within the range. This prevents the washing water W from being scattered to the user, and concentrates the washing water W on the surface 17 to be washed to realize an effective car wash. In this way, if the scattering prevention cover 1 is moved back and forth and left and right while the contact surface buffering portion 16 is in close contact with the surface to be cleaned 17, the contact surface buffering portion 16 can rub the surface to be cleaned 17 to remove dirt. In this case, the synthetic resin cover 14
Since the contact surface cushioning portion 16 is mounted so as to surround the lower peripheral edge portion 15, the lower peripheral edge portion 15 of the synthetic resin cover portion 14 never touches the surface to be cleaned 17 no matter how the splash prevention water discharge head 25 is moved. There is no possibility of damaging the surface to be cleaned 17 without touching it. On the contrary, the contact surface cushioning part 16 is
Since it comes in contact with 17, efficient cleaning is possible. Further, the contact surface cushioning portion 16 having the corner portion (corner of parallelogram in cross section) 24 as in the present example, the corner portion 24 is directed to the seam or the like of the outer panel of the automobile to be cleaned, and the contact surface cushioning portion 16 is finer. Allows car wash.

The surface to be cleaned is not limited to a flat surface, and especially when it is used as a car wash tool, it is necessary for the contact surface buffering portion to follow the outer surface of the automobile where a complicated curved surface is continuous. In the splash-preventing water discharge head of the present invention, flexibility is imparted not only to the contact surface cushioning portion in contact with the surface to be cleaned but also to the synthetic resin cover portion itself, and the outer shape of the synthetic resin cover portion is frustoconical. As a result, a scattering prevention cover that can be freely deformed without directionality is realized, and the followability to the surface to be cleaned is realized. Specifically, the contact surface buffer portion 16 that is brought into close contact with the surface to be cleaned 16
5 and 6 so that the load on the
As described above, the synthetic resin cover portion 14 and the contact surface cushioning portion 16 are integrally deformed.

At this time, if the synthetic resin cover portion 14 has a uniform thickness, the synthetic resin cover portion 14 having a wide side surface is equally deformed everywhere, so that the surface to be cleaned 2 can be easily tracked.
On the contrary, it may cause inappropriate deformation. Therefore, in this example, the thickness from the upper peripheral edge portion 13 of the synthetic resin cover portion 14 to the vicinity of the middle tier is made relatively thicker than the thickness from the vicinity of the middle portion to the lower peripheral edge portion 15. That is, the synthetic resin cover portion 14 of the present example is unlikely to be deformed above the middle stage, and is relatively easily deformed below the middle stage. In this way, when the portion that is difficult to deform and the portion that is easily deformed are provided, the surface to be cleaned 2
The appropriate deformation of the synthetic resin cover portion 14 and the contact surface cushioning portion 16 according to the synthetic resin cover portion 14 is enabled according to the shape of the. The thickness of the synthetic resin cover portion 14 may be changed stepwise as in this example, or may be continuously and gently changed.

FIG. 7 shows a contact surface cushioning portion formed of a fur molding.
Figure 1 of a car wash with a shatterproof water discharge head 25 with 26
FIG. 8 is a perspective view equivalent to FIG. 1, and FIG. 8 is a perspective view equivalent to FIG. 1 of a car wash tool provided with a splash prevention water discharge head 25 having a contact surface cushioning portion 27 formed of a brush molded body. From the viewpoint of rubbing the surface to be cleaned to remove dirt, as shown in FIG. 7 or FIG. 8, a contact surface cushioning portion 26 formed of a fur molding (specifically, Mouton)
Alternatively, the contact surface cushioning portion 27 formed of a brush molded body may be used. In this case, each contact surface cushioning portion 26, 27 has a bag shape in cross section so that the lower peripheral edge portion of the synthetic resin cover portion 14 does not come into contact with the surface to be cleaned, and the lower peripheral edge portion can be covered with buttons, screws or bolts. To do so.

[0020]

EFFECTS OF THE INVENTION According to the present invention, a scattering prevention cover having (1) followability to a surface to be cleaned, (2) protection action of the surface to be cleaned, and (3) easy replacement of parts is a main component, It becomes possible to provide a car wash tool equipped with an efficient and effective splash prevention water discharge head. In particular, the synthetic resin cover part that constitutes the scattering prevention cover has a truncated cone shape with no directionality, and the synthetic resin cover part and the contact surface buffer part are integrally deformed, so that the surface to be cleaned can be easily followed. Has been greatly improved. In this case, as described above, if the thickness of the synthetic resin cover part is partially and relatively changed, it is possible to avoid unnecessary deformation and realize appropriate deformation capable of following the surface to be cleaned. As a result, it becomes possible to wash the car without getting wet and to use the wash water without waste even in a severe winter.

The function of protecting the surface to be cleaned is realized by the contact surface buffer portion which is mounted so as to surround the lower peripheral edge portion of the synthetic resin cover portion. The attachment of the contact surface cushioning portion to the synthetic resin cover portion is easy because the lower peripheral edge portion of the synthetic resin cover portion is simply inserted into the notch of the contact surface cushioning portion. However, since the synthetic resin cover is frustum-shaped, the notch is located radially outside the notch, and the contact surface cushioning part attached to the lower peripheral edge of the synthetic resin cover does not easily fall off. .

In addition, when the lower peripheral edge portion of the frustum-shaped synthetic resin cover portion is inserted into the notch of the contact surface buffer portion,
If any part is likely to come off the notch, the lower peripheral edge of the point-symmetrical position is caught in the notch and cannot be easily removed. Thus, the contact surface cushioning portion can be removed only by manual operation by the user, but since the contact surface cushioning portion has flexibility, it can be easily attached and detached. Thus, the present invention has the effect of providing a splash-preventing water discharge head that is highly effective as a cleaning tool and is excellent in handleability by improving each part constituting the splash-preventing cover.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a car wash tool having a splash prevention water discharge head to which a splash prevention cover of the present invention is attached.

FIG. 2 is a vertical cross-sectional view showing an extracted water splash prevention head.

FIG. 3 is a plan view of the splash prevention water discharge head.

FIG. 4 is a view showing a state in which the splash prevention water discharge head is disassembled.
It is a considerable vertical cross section.

FIG. 5 is a vertical cross-sectional view corresponding to FIG. 2, showing a state in which a contact surface buffer portion is pressed against a curved surface to be cleaned.

FIG. 6 is a plan view corresponding to FIG. 3 showing the same state.

FIG. 7 is a perspective view corresponding to FIG. 1 of a car wash equipped with a splash-preventing water discharge head having a contact surface cushioning portion formed of a fur molded body.

FIG. 8 is a perspective view corresponding to FIG. 1 of a car wash equipped with a splash-preventing water discharge head having a contact surface cushioning portion formed of a brush molded body.

[Explanation of symbols]

1 Scatter prevention cover 12 Mounting base 13 Upper edge 14 Synthetic resin cover 15 Lower edge 16 Contact surface cushioning part made of foamed resin molding W wash water

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 3B116 AA31 AB52 BA02 BA13 BB38                       CD33                 3B201 AA31 AB52 BA02 BA13 BB38                       CD33                 3D026 AA02 AA19 AA23 AA33 AA38                       AA90                 4D073 AA09 BB03 DB04 DB06 DB08                       DB18 DB19 DB26 DB28 DB35

Claims (5)

[Claims] 1. A shatterproof water discharge head, in which a shatterproof cover is attached to a water discharge nozzle of a car wash tool that discharges wash water, wherein the shatterproof cover has a flexible side edge that expands downward. With a frustum-shaped synthetic resin cover part,
The synthetic resin cover part comprises a breathable and flexible annular contact surface cushioning part to be attached to the lower peripheral edge part of the synthetic resin cover part, and the synthetic resin cover part surrounds the water discharge nozzle so as to surround the water discharge nozzle. A splash-proof water-spraying head for car wash products, characterized by having an upper peripheral edge attached to the periphery. 2. The splash-preventing water discharge head of a car wash according to claim 1, wherein the contact surface cushioning portion is a foamed resin molded body mounted so as to surround a lower peripheral edge portion of the synthetic resin cover portion. 3. The splash-preventing water discharge head for a car wash tool according to claim 1, wherein the contact surface cushioning portion is a foamed resin molded body provided with an annular notch into which a lower peripheral edge portion of the synthetic resin cover portion is inserted. 4. The splash-preventing water discharge head for a car wash according to claim 1, wherein the contact-surface cushioning portion is a fur molded body mounted so as to surround a lower peripheral edge portion of the synthetic resin cover portion. 5. The contact surface cushioning portion is a brush molded body mounted so as to surround a lower peripheral edge portion of the synthetic resin cover portion.
Water-spraying head to prevent scattering of the described car wash equipment.