JP2001030880A - Drying device for car washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the enlargement of a nozzle for drying and also improve a noise reduction effect much more. SOLUTION: In this device, a duct 13 is connected between a side nozzle 8 for jetting the air S for drying to a vehicle and a fan device 10 for supplying the air S for drying to this side nozzle 8 and an air flowing passage 14 is formed in the duct 13 and the enlarged passage 20 enlarged the sectional area of the passage is formed in the cave room 15 provided on the way of the duct 13 and a sound absorbent 21 is installed inside the cave room 15.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dryer for drying a vehicle provided in a car washer.

[0002]

2. Description of the Related Art Conventionally, as this type of drying apparatus, there is one disclosed, for example, in Japanese Utility Model Publication No. 5-20619.
That is, the car washer body includes an upper nozzle body (drying nozzle) that injects drying air onto the upper surface of the vehicle to dry it.
A pair of left and right side nozzle bodies (drying nozzles) for injecting drying air to the side of the vehicle for drying, a first blower for supplying drying air to the upper nozzle body, and drying to the side nozzle bodies And a second blower for supplying working air.

A sound absorbing material is provided inside the upper nozzle body and inside the side nozzle body, respectively.
Thereby, noise when drying the vehicle by injecting the drying air from the upper nozzle body and the side nozzle body has been reduced.

[0004]

However, in the above-mentioned conventional type, since the sound absorbing material is provided inside the upper nozzle body and inside the side nozzle body, the size of the upper nozzle body and the side nozzle body are increased. There was a problem that it would. In particular, in order to further reduce the noise, it is necessary to increase the amount of the sound absorbing material, and there is a possibility that the size of the upper nozzle body and the side nozzle body may be further increased.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a drying apparatus for a car washer which can prevent the size of a drying nozzle from increasing in size and further improve the noise reduction effect.

[0006]

According to a first aspect of the present invention, there is provided a car washing machine, comprising: a drying nozzle for jetting drying air to a vehicle; A blower for supplying air is provided, an airflow passage is formed between the drying nozzle and the blower, and an enlarged passage portion having an enlarged passage cross-sectional area is formed in a middle portion of the airflow passage. Is what it is.

[0007] According to this, the blowing device is driven, the drying air is supplied to the drying nozzle, and is jetted from the drying nozzle to the vehicle, whereby the vehicle surface is dried. At this time, the drying air sent from the blower flows into the enlarged passage through the air passage. In this enlarged passage portion, the passage cross-sectional area is rapidly increased, so that a pressure loss occurs in the drying air, and the kinetic energy of the drying air decreases, thereby attenuating noise when the drying air flows. .

[0008] In the car washer according to the second aspect of the present invention, a sound absorbing material is provided in the enlarged passage portion. According to this, when the drying air passes through the enlarged passage, noise is absorbed by the sound absorbing material provided in the enlarged passage,
The noise is further reduced. In the car washer according to the third aspect of the present invention, the air flow passage is formed inside a tubular member connected between the drying nozzle and the blower, and the enlarged passage portion is a hollow chamber provided in a middle portion of the tubular member. And the sound absorbing material is attached to the inner surface of the cavity.

According to this, the drying air sent from the air blower flows through the air flow passage in the tubular member into the enlarged passage in the cavity. In this enlarged passage portion, the passage cross-sectional area is rapidly increased, so that the noise when the drying air flows is attenuated. Further, noise is absorbed by the sound absorbing material attached to the inner surface of the cavity, so that the noise is further reduced.

Further, since the sound absorbing material is provided not in the interior of the drying nozzle but in the hollow chamber in the middle of the tubular member for supplying the drying air to the drying nozzle, the size of the drying nozzle is increased. Can be prevented.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. As shown in FIG.
Reference numeral 1 denotes a self-propelled car wash machine, which has a gate-shaped car wash machine body 3 supported and guided by a floor rail 2 and capable of running back and forth, and a vertically movable top brush (not shown) for brushing the upper surface of the vehicle 4. A pair of left and right side brushes (not shown) for brushing both side surfaces and front and rear surfaces of the vehicle 4; a pair of left and right rocker brushes (not shown) for brushing lower portions of both side surfaces of the vehicle 4 and each wheel; 4, a cleaning water arch (not shown) for injecting washing water, a wax arch (not shown) for injecting liquid wax to the vehicle 4, and a vehicle height detecting device 5 (Sonic sensor or the like) for detecting the vehicle height. ) Are provided.

Further, the car washer body 3 has a pair of left and right side nozzles 8 (an example of a drying nozzle) for injecting drying air S to both sides of the vehicle 4 to dry both sides of the vehicle 4. Injecting the drying air S onto the upper surface of the vehicle 4
A top nozzle 9 (an example of a nozzle for drying) for drying the upper surface of the nozzle and a pair of left and right blowers 10 (blowers) for supplying drying air S to these nozzles 8 and 9 are provided. The top nozzle 9 is provided so as to be able to move up and down freely, and is configured to move up and down by a lifting drive device (not shown) according to the vehicle height detected by the vehicle height detection device 5.

As shown in FIG. 1, a flexible tubular duct 13 is connected between an air outlet 11 of the air blower 10 and an inlet 12 of the side nozzle 8. An air flow passage 14 is formed inside these ducts 13. In the middle of the duct 13 is a rectangular box-shaped hollow chamber 15.
Is provided. That is, the duct 13 includes an upstream duct body 17 connected between the air outlet 11 of the blower 10 and the inlet 16 of the cavity 15, an outlet 18 of the cavity 15, and an inlet of the side nozzle 8. 12 and a downstream duct body 19 connected between them.

An enlarged passage section 20 having a rectangular cross section is formed inside the cavity chamber 15, and the passage sectional area of the enlarged passage section 20 is larger than the passage sectional area inside the duct 13. That is, as shown in FIG. 2, when the vertical width inside the hollow chamber 15 is A, the horizontal width is B, and the inner diameter of the duct 13 is C, the passage cross-sectional area of the enlarged passage portion 20 = A × B> duct 1
It is configured in a relationship such as cross-sectional area = π × C ^2/4 in 3. Further, a sound absorbing material 21 is provided on the inner surface of the cavity 15.
Is installed.

As shown in FIGS. 3 and 4, the sound absorbing material 21 includes a thin porous member 23 made of aluminum, an aluminum stopper plate 24 opposed to the porous member 23 at a predetermined interval, and It is composed of a glass wool 25 sandwiched between the porous member 23 and the stopper plate 24.
The porous member 23 is constituted by a net member 26 (mesh member) made of aluminum and a fiber 27 of aluminum.

One end of each branch duct 29 is connected to a middle part of each of the left and right downstream duct bodies 19, and the other end of each branch duct 29 is connected to a pair of left and right inflow ports 30 of the top nozzle 9. ing. Hereinafter, the operation of the above configuration will be described. When carrying out car washing, first, the washing water is injected from the washing water arch onto the surface of the vehicle 4 while the car washing machine body 3 moves forward and the vehicle height detecting device 5 detects the vehicle height, and the liquid wax is applied. From the arch for wax to vehicle 4
Are sprayed onto the surface of the vehicle 4, and each brush is driven to rotate to brush the surface of the vehicle 4.

When the brushing of the front, rear, side and top surfaces of the vehicle 4 is completed as described above, the car washer body 3 then travels backward and the air blowers 10 are driven.
The drying air S is supplied to both side nozzles 8 and the top nozzle 9, and the injection ports 31, 32 of these nozzles 8, 9 are provided.
Injected from. Thereby, as shown in FIG. 5, both sides of the vehicle 4 are dried by the drying air S from the side nozzle 8 and the upper surface is dried by the drying air S from the top nozzle 9. At this time, the top nozzle 9 moves up and down according to the vehicle height detected by the vehicle height detection device 5.

At the time of the above-mentioned drying process, as shown in FIG. 1, the drying air S sent out from the air outlets 11 of the two air blowers 10 passes through the air flow passage 14 in the upstream duct body 17. It flows into the enlarged passage portion 20 in the cavity chamber 15. At this time, since the cross-sectional area of the passage is rapidly increased, the drying air S flows into the enlarged passage portion 20 to cause a pressure loss in the drying air S, and the kinetic energy of the drying air S decreases. Thereby, the noise when the drying air S flows is attenuated. Further, the noise is absorbed by the sound absorbing material 21 attached to the inner surface of the cavity 15, so that the noise is further reduced.

After that, a part of the drying air S flowing from the cavity chamber 15 into the downstream duct body 19 is supplied into the side nozzle 8 and injected from the injection port 31. The remainder of the drying air S flows from the downstream duct body 19 into the branch duct 29, is supplied into the top nozzle 9, and is jetted from the jet port 32. Thus, the sound absorbing material 2
1 is provided not in the side nozzle 8 or the top nozzle 9 but in the hollow chamber 15 in the middle of the duct 13 for supplying the drying air S to the nozzles 8 and 9. It is possible to prevent the side nozzle 8 and the top nozzle 9 from being enlarged.

As shown in FIG. 1, the mounting position of the hollow chamber 15 is determined by the inflow port 12 of the side nozzle 8 and the top nozzle 9.
The effect of the noise reduction is higher at a position closer to the blower opening 11 of the blower 10 than at a position closer to the inflow port 30. Therefore, it is effective to provide the cavity chamber 15 near the air outlet 11 of the air blower 10. In the above embodiment, the self-propelled car washer body 3 was described. However, the car washer body was installed and fixed, and the car 4 was transferred to the car washer body while being conveyed by the carrier device. It may be a type of car washing machine. Alternatively, a car washer of a type in which the self-propelled car washer body 3 is moved back and forth and the car 4 is washed while being conveyed by the conveyance device.

In the above embodiment, the hollow chamber 15 is formed in the shape of a square box. However, the shape is not limited to this, and may be, for example, a cylindrical shape. In the first embodiment, as shown in FIG. 1, the hollow chamber 15 is provided in the middle of the duct 13, and the branch duct 29 is connected to the downstream duct body 19. As shown in FIG.
As shown in (5), the branch duct 29 may be connected to the upstream duct body 17, and the cavity 15 may be provided in the middle of the duct 13 and the middle of the branch duct 29.

Further, in the first embodiment, as shown in FIG. 1, the blower 10 is shared by the side nozzle 8 and the top nozzle 9, but as a third embodiment,
As shown in FIG. 7, a blower 10 for supplying the drying air S to the side nozzle 8 is provided, and the blower 10 and the side nozzle 8 are connected by a duct 13. And further, a pair of left and right blowers 40 for supplying the drying air S to the top nozzle 9 is provided, and both the blowers 40 and the top nozzle 9 are connected by different ducts 41 respectively. Separate cavities 42 may be provided in the sections.

[0023]

As described above, according to the first aspect of the present invention, the drying air sent from the blower flows into the enlarged passage through the air flow passage, and the cross-sectional area of the passage in the enlarged passage is reduced. The noise is attenuated when the drying air flows because of the rapid expansion. According to the second aspect of the present invention, when the drying air passes through the enlarged passage, the noise is absorbed by the sound absorbing material provided in the enlarged passage, so that the noise is further reduced.

According to the third aspect of the present invention, the sound absorbing material is provided not in the interior of the drying nozzle but in the hollow chamber in the middle of the tubular member for supplying the drying air to the drying nozzle. It is possible to prevent an increase in the size of the nozzle.

[Brief description of the drawings]

FIG. 1 is a partially cutaway view showing a configuration of a drying device for a car washer according to a first embodiment of the present invention.

FIG. 2 is a view taken along the line XX in FIG. 1;

FIG. 3 is a cross-sectional view showing a configuration of a sound absorbing material of the drying device of the car washer.

FIG. 4 is an enlarged view of a surface of a porous member constituting a sound absorbing material of the drying device of the car washer.

FIG. 5 is a front view of the same car washer.

FIG. 6 is a partially cutaway view illustrating a configuration of a drying apparatus for a car washer according to a second embodiment of the present invention.

FIG. 7 is a schematic diagram showing a configuration of a car washing machine drying device according to a third embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Car wash machine 3 Car wash machine main body 4 Vehicle 8 Side nozzle (nozzle for drying) 9 Top nozzle (nozzle for drying) 10 Blower 13 Duct (tubular member) 14 Air flow passage 15 Cavity room 20 Enlarged passage portion 21 Sound absorbing material 29 Branch Duct (tubular member) 40 Different blower 41 Different duct (tubular member) 42 Cavity S Drying air

Claims (3)

[Claims] A drying nozzle for injecting drying air into a vehicle, and a blowing device for supplying drying air to the drying nozzle are provided in the car washer body, and the drying nozzle and the blowing device are connected to each other. An air flow passage is formed between the air flow passages, and an enlarged passage having an enlarged cross-sectional area is formed in a middle portion of the air flow passage. 2. The drying device for a car washer according to claim 1, wherein a sound absorbing material is provided in the enlarged passage portion. 3. The air flow passage is formed inside a tubular member connected between the drying nozzle and the blower, and the enlarged passage portion is formed inside a hollow chamber provided at an intermediate portion of the tubular member. The drying apparatus for a car wash according to claim 2, wherein the sound absorbing material is attached to an inner surface of the cavity.