JP2000213500A - Air blower - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the pressure loss of the air-flow force even in the change of air-flow direction by mounting a blower part on a turn table for blowing the air from a blast port by means of a motor provided with a fan. SOLUTION: A blower part 14 of an air blower 13 is mounted on an upper part of a carriage 15 through a turn table 16. The blower part 14 comprises a rear duct 18 comprising an inlet port 17, and a front duct 20 comprising an blast port 19 and narrowed along the blasting direction for contracting the air-flow. A motor 22 attached with a fan 21 is mounted on the rear duct 18, and the fixed louvers 23... are laterally arranged on the blast port 19 of the front duct 20 for controlling the air blasting direction approximately same as the flowing direction inside the blower part 14. The air blower 13 is lifted up by a jack 24 mounted on an edge near the inlet port 17 and the blast port 19 of the blower part 14, and positioned and fixed after the air-flow direction of the air blower 13 is determined by means of the turn table 16.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blower for changing a wind direction.

[0002]

2. Description of the Related Art In a running test of a car, there is a test for examining a state of the car when a wind at a predetermined angle is received while the car is running. In this test, as shown in FIG. This is performed using a plurality of large-sized blowers 3 (five in FIG. 6) arranged along the road surface 2 in the traveling direction of the automobile 1.

[0003] As shown in FIGS. 7 and 8, the blower 3 has a duct main body 4 erected on the ground 5. The duct main body 4 has a rear duct 7 having a suction port 6 and an outlet 8. And a front duct 9 formed narrow along the blowing direction to reduce the wind.

[0004] The rear duct 7 is provided with a motor 11 to which a fan 10 is attached.
Has a drive louver 12 arranged in the left-right direction, and the drive louver 12 is provided with a drive louver motor (not shown) for changing the direction of the drive louver 12 so as to change the wind direction.

When air is blown from the blower 3, the drive louver 12 is fixed at a predetermined angle in advance so as to have a wind direction at a predetermined angle, and air is sucked by the fan 10 to be taken into the duct body 4, and the air is blown into the duct body 4. The air is rectified by the duct 9 and is blown in a direction of a predetermined angle by the drive louver 12.

[0006]

However, when the wind direction is changed by the drive louver 12, the operating cost and the like do not change much at a normal wind speed, but at a wind speed similar to a typhoon, the pressure loss of the wind power greatly increases and the power is reduced. There was a problem that the loss was large and the operation cost was extra.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a blower that does not cause pressure loss of wind when changing the wind direction.

[0008]

The blower of the present invention has a structure in which a blower for blowing air from an outlet by a motor having a fan is mounted on a turntable.

When air is blown from the blower at a predetermined angle, the blower is rotated and fixed by a turntable so that the outlet of the blower is directed at the predetermined angle, and then air is blown by a motor fan. Suction is performed and air is blown from the outlet in a direction at a predetermined angle.

[0010] Therefore, it is possible to prevent pressure loss of wind power, minimize power loss, and suppress an increase in operating cost.

Further, if a movable cart is provided below the turntable, the blower can be moved along the rail, so that the blower can blow air at a predetermined angle from an appropriate position.

Further, when the carriage is configured to be able to be carried along the rail, the blower can be moved along the rail without fail.

Furthermore, if a plurality of blowers are arranged on a rail, it is possible to blow air to many basins.

Further, when a jack is provided to support the blower unit by separating the bogie from the rail, when the air is blown using the jack, the bogie does not travel on the rail, so that the air is reliably blown at a predetermined angle. Can be.

[0015]

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

FIGS. 1 to 5 show a blower 13 showing an embodiment of the present invention, in which parts denoted by the same reference numerals as those in FIGS. 6 and 7 represent the same parts. .

The blower 13 has a blower 14 provided above a carriage 15 via a turntable 16.

The blower unit 14 is a duct, which is a rear duct 18 having a suction port 17, a front duct 20 having a blowout port 19, and formed narrow in the blowout direction so as to reduce the wind. It consists of.

The rear duct 18 is provided with a motor 22 to which a fan 21 is attached, and the outlet 19 of the front duct 20 has a direction in which the wind blows out is substantially the same as the direction in which the inside of the blower 14 flows. And a fixed louver 23 formed side by side in the left-right direction.

A jack 24 for lifting the blower 13 in contact with the ground 5 is provided at an edge of the blower 14 near the inlet 17 and the outlet 19.

The carriage 15 located below the blower 14 is
A rail 2 is attached to the side of the square frame 25.
6 is provided with four wheels 27 that can travel on the vehicle. Here, the rail 26 is provided along the road surface of the running test, and the rail 26 is embedded in the ground 5 so that only the upper part is exposed.

The turntable 16 provided between the blower 14 and the carriage 15 comprises a lower disk portion 28 and an upper disk portion 29. The upper surface of the lower disk portion 28 and the upper disk portion 2
9 are provided with annular grooves 30 and 31 and a plurality of bolt holes 32 and 33, respectively, and ball bearings 34 are disposed in the annular grooves 30 and 31 so that a lower disk portion 28 and an upper disk portion 29 are formed. Is rotatably mounted coaxially. The lower disk portion 28 is fastened to the carriage 15 via bolts, and the upper disk portion 29 is fastened to the blower 14 via bolts.

The turntable 16 is provided with fixing members (not shown) such as pins and stoppers for fixing the rotation of the lower part 28 of the disk and the upper part 29 of the disk. The gap 36 between the upper disk 29 and the lower disk 28
A rain avoiding part 37 is provided so that rainwater does not enter the area.

Next, the operation of the present embodiment will be described.

When air is blown from the air blower 13 at a predetermined angle, a plurality of air blowers 1
3 (five in FIG. 5) are respectively moved along rails 26 so as to have a predetermined interval with the adjacent blower 13, and the turntable 16 is used to turn the outlet 19 of the blower 14 toward a wind direction at a predetermined angle. The blower 14 is rotated, and the bogie 15 is separated from the rail 26 by the jack 24 so that the blower 1
The blower 13 is lifted and fixed so as to support 4.
Here, the turntable 16 is fixed by a fixing member.

Next, air is sucked by the fan 21 of the motor 22 and taken into the inside of the blower unit 14, and the
From the direction of a predetermined angle.

For this reason, it is possible to prevent the pressure loss of the wind force generated when the wind direction is changed by the drive louver 23, minimize the power loss, and suppress the increase in the operating cost.

If the carriage 15 which can run on the rail 26 is provided below the turntable 16, the blower 13 can be moved along the rail 26 so that the blower 13 blows air from a proper position at a predetermined angle. Can be.

Further, when the carriage 15 is configured to be able to be carried along the rails 26, the blower 13 can be reliably moved along the rails 26.

Furthermore, when a plurality of blowers 13 are arranged on the rail 26, it is possible to blow air to many basins.

When the truck 15 is separated from the rail 26 and a jack 24 for supporting the blower unit 14 is provided, the jack 2
When the air is blown by using the carriage 4, the cart 15 can surely blow air at a predetermined angle without traveling on the rail 26.

The present invention is not limited to the above-described embodiment only. The fixed louver 23 may be driven to adjust the wind direction within a range that does not cause the pressure loss of the wind force, and the turntable 16 is rotated. Of course, it is possible to use manual or motive power such as a motor, and it is needless to say that various changes can be made without departing from the gist of the present invention.

[0033]

According to the blower of the present invention, various excellent effects as described below can be obtained.

I) According to the blower of the present invention, since the blower is rotated by the turntable so that the outlet of the blower is directed to a predetermined wind direction, the pressure loss of the wind is prevented and the power loss is minimized. And increase in operating costs can be suppressed.

II) If a movable cart is provided at the lower part of the turntable, the blower can be moved along the rail, so that air can be blown at a predetermined angle from an appropriate position.

III) If the carriage is configured to be able to be carried along the rail, the blower can be moved reliably along the rail.

IV) By arranging a plurality of blowers on the rail, it is possible to blow air to many basins.

V) If a jack is provided to support the blower unit by separating the bogie from the rail, when the air is blown using the jack, the bogie does not run on the rail, so that the air is reliably blown at a predetermined angle. Can be.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of a blower of the present invention.

FIG. 2 is a view in the direction of arrows II-II in FIG.

FIG. 3 is a diagram in which a lower portion of a disk of a turntable in a blower of the present invention is mounted on a frame.

FIG. 4 is an enlarged sectional view of a turntable in the blower of the present invention.

FIG. 5 is a view showing a state in which the blower of the present invention rotates to blow air in a wind direction at a predetermined angle.

FIG. 6 is a view showing how a conventional blower blows air.

FIG. 7 is a side view showing an example of a conventional blower.

8 is a view in the direction of arrows VIII-VIII in FIG. 7;

[Explanation of symbols]

 14 Blower 15 Cart 16 Turntable 19 Air outlet 21 Fan 22 Motor 24 Jack 26 Rail

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Fujio Izumi 125 Izumi Blower Co., Ltd. 4-5-5 Imai, Gojo-shi, Nara Prefecture F-term (reference) 2G023 AB01 AB12 AB21 AC01 AC07 AD03

Claims (5)

[Claims] 1. A blower, wherein a blower for blowing air from an outlet by a motor having a fan is mounted on a turntable. 2. The blower according to claim 1, wherein a movable truck is provided below the turntable. 3. The blower according to claim 2, wherein the carriage is configured to be able to be carried along the rail. 4. The blower according to claim 3, wherein a plurality of the blowers are arranged on a rail. 5. The blower according to claim 3, further comprising a jack for supporting the blower by separating the cart from the rail.