JPH0520620Y2 - - Google Patents

Description

[Detailed description of the invention] A. Purpose of the invention (1) Industrial application field The present invention is a drying device for a vehicle, particularly a centrifugal blower equipped with an impeller with an air outlet opening on the outer circumferential surface.
A nozzle body that receives air supply from the blower is provided on the machine frame, and the nozzle body has a horizontal nozzle extending in the vertical direction, and the air ejected from the nozzle is directed to vehicles near the machine frame. The present invention relates to a device that is applied to the side surface of a vehicle to dry the side surface of the vehicle.

(2) Prior Art Conventionally, in the drying device of the above type, the nozzle body was disposed on the side of the machine frame so as to be close to the side of the vehicle, and the blower was disposed on the top of the machine frame away from the nozzle body. The body and the blower were connected by a duct.

(3) Problems to be solved by the invention In the conventional device described above, it is necessary to use an L-shaped duct or other duct with a bent middle to connect the nozzle body and the blower that are vertically separated from each other. , the structure is complicated and assembly to the machine frame is troublesome, and it is necessary to change the direction of the air flow as it passes through the duct, which increases the resistance of the flow path. There are problems such as a decrease in blower efficiency.

The present invention has been proposed in view of the above, and an object of the present invention is to provide a drying device for a vehicle with a simple structure that can solve all of the above-mentioned problems of conventional devices.

B. Structure of the invention (1) Means for solving the problem In order to achieve the above object, the invention provides a centrifugal blower equipped with an impeller with an air outlet opening on the outer circumferential surface, and air supply from this blower. A nozzle body for receiving air is provided on the machine frame, and the nozzle body has a horizontal nozzle extending in the vertical direction, and the air ejected from the nozzle is applied to a side surface of the vehicle body close to the machine frame. In the vehicle drying device configured to dry the side surface, the nozzle body includes:
In order to serve as the casing of the blower, the impeller is formed in a shape that accommodates the impeller therein. It is arranged so as to be located between two horizontal planes passing through the upper and lower ends, respectively.

(2) Effect In the nozzle body, nearly half of the outer peripheral surface of the impeller can be directed close to the nozzle side, and nearly half of the air blown into the nozzle body from the air outlet on the outer peripheral surface can be directed in a large direction along the way. Since the air can be directly introduced into the nozzle without being converted, the overall flow path resistance that the air faces from the blower to the nozzle body can be significantly reduced.

Further, since the nozzle body itself serves as the casing of the blower, there is no need to specially install a duct between the nozzle body and the blower, and the nozzle body and the blower can be handled as one unit.

(3) Embodiment An embodiment of the present invention will be explained below with reference to the drawings.
is placed on guide rails 2, 2 laid on the ground via running wheels 3, and is capable of running back and forth along the guide rails 2, 2 by a prime mover (not shown). The gate-shaped machine frame 1 is equipped with a well-known car body cleaning device (not shown) capable of cleaning the car body surface of an automobile.
, a first drying device D ₁ for drying the top surface of the car body after car washing, and a second drying device D ₂ for drying both left and right sides of the car body, and the second drying device D ₂ constitutes the drying device of the present invention.

The first drying device D ₁ includes a pair of left and right first centrifugal blowers B 1 that are installed on both upper sides of the gantry machine frame 1 and driven by a prime mover M ₁ , and a pair of first centrifugal blowers B ₁ on the ceiling of the gantry machine frame 1 . An upper nozzle body _N1 that is supported on the frame 1a so as to be able to rise and fall via a lift mechanism (not shown), and a flexible duct ₅ that communicates between the inside of this nozzle body _N1 and each of the first centrifugal blowers B1. It is composed of
Each first centrifugal blower B ₁ has a box-shaped casing 10 that is flat in the running direction of the machine frame 1, and a discharge port 4 connected to the duct 5 is provided protruding from the lower part of the inner wall of the casing 10. Further, in the casing 10, there is housed an impeller (not shown) having a rotating shaft 11a disposed along the traveling direction. As shown in Fig. 2, the upper nozzle body _N1 has a box shape with an inverted triangular cross section and extends long in the left and right direction.
At its lower end, a downward nozzle n ₁ extending long in the left-right direction is provided. The upper wall 6 of the upper nozzle body N ₁ has an outer end that extends through the upper wall 6 and has both the dants 5.
A pair of left and right connecting pipes 7 are integrally fixed to each other, and the inner end of each connecting pipe 7 opens directly into the upper nozzle body _N1 , so that the discharge from each first centrifugal blower _B1 is It serves as an air introduction port 7a into the upper nozzle body _N1 . A support plate 9 1 is fitted on the inner surface of the upper nozzle body N ₁ at the same height as the inner end of the connecting pipe 7, and this support plate _{9 1 and} the nozzle n ₁ of the upper nozzle body N ₁ In the space defined between the inner end surface 8 facing the , that is, the inner surface of the upper wall 6,
Filled with glass wool or other sound absorbing material g ₁ . In order to enhance the sound absorbing function of the sound absorbing material _g1 , a large number of small holes _9a1 ... are bored in the support plate ₉₁ , and the first sound absorbing material _S1 is constituted by the supporting plate ₉₁ and the sound absorbing material _g1 . Ru.

The second drying device D ₂ also includes a pair of left and right second centrifugal blowers B ₂ that are installed on both sides of the gate-type machine frame 1 and driven by a prime mover M ₂ , and each of the second centrifugal It is composed of a pair of left and right side nozzle bodies _N2 each receiving air supply from a blower _B2 . Each side nozzle body _N2 is designed so that it can also be used as the casing of the corresponding second centrifugal blower _B2 .
A size that accommodates the impeller 11 of the blower _B2 ,
In addition, it is formed into a flat box shape in the direction along the rotation axis 11a of the impeller 11 (travel direction of the machine frame 1), and in particular, the upper end of the nozzle body _N2 has an upper half of the impeller 11. A curved protrusion 20, which is approximately semicircular when viewed from the front of the machine frame 1, is integrally connected to receive the nozzle body N2, and at the inner end of the nozzle body _N2 , there is a horizontal nozzle _n2 extending vertically in an elongated manner. is opened. The impeller 11 has a configuration similar to that of a conventionally well-known centrifugal blower, and has an air suction port 11 in the center of the side wall opposite to the prime mover _M2 .
b, and a large number of air outlets 11c are opened on the outer peripheral surface, and these air intake ports 11
b and the air outlet 11c, the air sucked from the air inlet 11b is transferred to the air outlet 11 using centrifugal force.
A large number of blades 11d are provided for guiding toward the c side. The air suction port 11b is provided on one side wall of the side nozzle body _N2 opposite thereto,
It communicates directly with the air inlet cylinder 16 of the second centrifugal blower _B2 . In each side nozzle body _N2 , the impeller 11 has an axis of its rotating shaft 11a that is substantially perpendicular to the vertical plane that traverses the nozzle _n2 and passes through the upper and lower ends of the nozzle _n2 , respectively. It is arranged so as to be located between two horizontal planes.

One surface ₁₂ of a pair of inner surfaces 12 and 13 facing each other parallel to each other of each side nozzle body N2
has a support plate 9 forming a flat space therebetween.
₂ is fixed, the flat space thereof is filled with glass wool or other sound absorbing material _g2 , and the support plate ₉₂
A large number of small holes 9a ₂ . . . are bored in the hole. Thus, the support plate 9 ₂ and the sound absorbing material g ₂ constitute the second sound absorber S ₂ , and between the support plate 9 ₂ and the other inner surface 13 of each side nozzle body N ₂ , Both inner surfaces 12, 13
Sufficient air gap 14 is ensured to provide a flow path for the discharge airflow from the second centrifugal blower B ₂ to pass through each side nozzle body N ₂ along.

In addition, 15 in FIGS. 1 and 3 indicates each centrifugal blower B ₁ ,
This is a sound absorber installed in the air inlet cylinder 16 of _B2 .

Next, to explain the operation of the above embodiment, with a vehicle to be dried placed between both guide rails 2, 2, each centrifugal blower _B1 , _B2 is driven, and the portal machine frame 1 is caused to run. and the nozzle of the upper nozzle body N ₁
From each first centrifugal blower B ₁ , high-speed airflow that has passed through the duct 5 and the upper nozzle body N ₁ is ejected and blown onto the upper surface of the vehicle body, and from the nozzle _{n 2} of each side nozzle body N ₂ From the second centrifugal blower _B2 , high-speed airflow passing through each side nozzle body _N2 is ejected and blown onto both the left and right sides of the vehicle body, allowing the surface of the vehicle body to be quickly dried after being washed. .

In this drying process, each centrifugal blower B ₁ ,
The noise generated when _the discharged air of B ₂ tries to pass through each nozzle body N ₁ , N _{2 is}
It is effectively absorbed and reduced by the sound absorbers S ₁ and S ₂ inside. Moreover, the first sound absorber S ₁ in the upper nozzle body N ₁ is
It is provided on the inner end surface 8 of the upper nozzle body N ₁ facing the nozzle n ₁ and is located around the air flow that is vigorously blown into the upper nozzle body N ₁ from the inlet 7a. It is not a resistance to
Furthermore, even if the second sound absorber S ₂ is provided on one inner surface 12 of each side nozzle body N ₂ along the flow direction of the air flow inside each side nozzle body N ₂ , the other inner surface 13 can guide the airflow smoothly, so the resistance to the airflow of the side nozzle body _N2 as a whole is small, and after all, the sound absorbers _S1 and _S2 are inside each nozzle body _N1 and _N2 . Even if they are specially installed, there is no concern that the speed of air ejection from each nozzle n ₁ and n ₂ will decrease.

In particular, in each side nozzle body _N2 , the impeller 11 of each centrifugal blower _B2 has its axis of rotation 11a substantially perpendicular to the vertical plane that traverses the nozzle _n2 , as described above, and Since it is arranged so as to be located between two horizontal planes passing through the upper and lower ends of n ₂ , respectively, nearly half of the outer circumferential surface of the impeller 11 in the side nozzle body N ₂ is directed close to the nozzle n ₂ side. Therefore, nearly half of the air blown into the side nozzle body N ₂ from the air outlet 11c on the outer peripheral surface can be directly introduced into the nozzle n ₂ without changing the direction significantly on the way. The flow path resistance that the air receives from the second centrifugal blower B ₂ to the nozzle n ₂ is greatly reduced as a whole.

C. Effects of the invention As described above, according to the invention, a centrifugal blower equipped with an impeller having an air suction port opened on the outer circumferential surface and a nozzle body that receives air supply from this blower are provided in the machine frame, and the nozzle A drying device for a vehicle, wherein a horizontal nozzle extending in the vertical direction is formed in the body, and air ejected from the nozzle is applied to a side surface of the vehicle body close to the machine frame to dry the side surface. In the above, the nozzle body is formed in a shape in which the impeller is housed so that the nozzle body can also be used as a casing of the blower, and the impeller is
The axis of rotation is located between two horizontal planes that are approximately perpendicular to the plane that traverses the nozzle and passes through the upper and lower ends of the nozzle, so that the outer circumferential surface of the impeller is located within the nozzle body. Nearly half of the circumference of the nozzle can be directed close to the nozzle side, and nearly half of the air blown into the nozzle body from the air outlet on the outer circumferential surface can be directly introduced into the nozzle without changing direction midway. Therefore, the air flow path resistance between the blower and the nozzle body can be significantly reduced, which can contribute to increasing the efficiency of the blower. In addition, since the nozzle body itself serves as the casing of the blower, there is no need to install a special duct between the nozzle body and the blower, which makes the structure simpler and contributes to cost reduction.
Furthermore, the blower and nozzle body can be handled as one unit, which is convenient, and the workability of assembling the machine frame is improved.

[Brief explanation of drawings]

1 to 3 show an embodiment of the present invention, in which FIG. 1 is an overall front view of the drying device, FIG. 2 is an enlarged cross-sectional view taken along the - line in FIG. 1, and FIG. 3 is a - line in FIG. It is a line enlarged sectional view. B ₂ ... Second centrifugal blower as a blower, D ₂ ...
...Second drying device as a drying device, N ₂ ... Side nozzle body as a nozzle body, n ₂ ... Spout, 1...
Machine frame, 11... Impeller, 11a... Rotating shaft, 11
c...Air outlet.

Claims (1)

[Scope of utility model registration request] A centrifugal blower equipped with an impeller having an air outlet opening on its outer peripheral surface, and a nozzle body that receives air supply from the blower are provided in the machine frame, and the nozzle body includes:
In the vehicle drying device, a lateral nozzle extending in a vertical direction is formed, and air ejected from the nozzle is applied to a side surface of a vehicle body close to the machine frame to dry the side surface of the vehicle, wherein the nozzle The body is formed in a shape in which the impeller is housed in order to serve as a casing of the blower, and the impeller has an axis of rotation substantially perpendicular to a plane that longitudinally traverses the nozzle. above the spout,
A drying device for a vehicle, characterized in that it is arranged so as to be located between two horizontal planes passing through each lower end.