JP2748728B2 - Blower - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blower having a casing accommodating rotating blades and a connecting pipe connected to a discharge port of the casing.

[0002]

2. Description of the Related Art FIG. 3 and FIG.
It is a figure which shows the conventional air blower shown by 61097 gazettes. In the figure, reference numeral 1 denotes a casing having a first side plate 1a and a second side plate 1b facing each other, and a casing having a cavity 1c formed therein. The blades 4 disposed in the space 1c are suction ports provided in the second side plate 1b in correspondence with the blades 3, 5
Is a discharge port provided on the first side plate 1a and having a cylindrical edge, 6 is a connection pipe fitted to the discharge port 5, and 7 is a connection pipe 6.
Are attached to the edge of the discharge port 5.

[0003] The conventional blower is configured as described above,
When the motor 2 is energized, the blades 3 rotate, and air is sucked from the suction port 4 and blown from the discharge port 5 to the connection pipe 6.
Further, the connection pipe 6 is fastened to the edge of the discharge port 5 by a mounting bracket 7 so as not to leak air.

[0004]

In the conventional blower as described above, the mounting bracket 7 is tightened by the operation in the direction orthogonal to the mounting operation direction of the motor 2 during the assembling operation, which is a complicated operation. There was a problem. Further, since the connecting pipe 6 is held by friction, there is a problem that the connecting pipe 6 is easily detached in the longitudinal direction.

The present invention has been made to solve such a problem, and an object of the present invention is to provide a blower in which a connecting pipe is mounted through an operation in a direction perpendicular to a casing surface.

[0006]

In the blower according to the present invention, a flange is provided at an end of the connection pipe, and a mounting fitting fitted to the connection pipe is provided.

A projection for fitting is provided on one side of the plane of the mounting bracket, and a fastening section is provided on the other side.

[0008]

In the blower constructed as described above, the flange is pressed against the casing by the fitting, and the connection pipe is mounted.

The projection of the mounting bracket is fitted to the end of the casing outside the cavity, and the fastening portion is fastened to the casing at an extension outside the air flow path inside the casing.

[0010]

1 and 2 show one embodiment of the present invention. In the drawings, the same reference numerals as those in FIGS. 3 and 4 denote corresponding parts, and 1d denotes air provided in a space 1c. In the channel, void 1
c and is formed by a tongue-shaped partition plate 1e in a plane. Reference numeral 6 denotes a connection pipe having a flange 6a at an end, and reference numeral 7 denotes a plate-like mounting fitting fitted to the connection pipe 6, which is disposed on the side of the flange 6a opposite to the first side plate 1a, and on one side of a plane, the second A protrusion 7a fitted in the fitting hole 1f of the extension of the side plate 1b outside the cavity 1c is provided, and a fastening portion 7b is provided on the other side. A fixing screw 7c is inserted into the fastening portion 7b and screwed into the first side plate 1a to reach the space 1c.

The connection pipe 6 of the blower constructed as described above is attached to the connecting pipe 6 in the direction along the length of the connection pipe 6 by the mounting bracket 7.
It is pressed and attached to the casing 1. For this reason,
A failure due to being securely held and removed by the casing 1 can be prevented.

Further, since the tip of the fixing screw 7c of the mounting member 7 is disposed outside the air flow path 1d formed by the partition plate 1e, the air flow is not disturbed, and a good air blowing action can be obtained.

Further, since the mounting operation flow line of the mounting bracket 7 is parallel to the mounting operation flow line of the motor 2, the assembling work is facilitated, which is advantageous for automation of the assembly.

[0014]

According to the present invention, as described above, the flange at the end of the connection pipe is pressed by the mounting bracket and mounted on the casing, so that there is an effect that the casing of the connection pipe is securely held.

Further, since the fixing screw of the mounting bracket is provided outside the air flow path and the fitting projection is provided outside the casing, there is an effect of obtaining a turbulent airflow without disturbance.

[Brief description of the drawings]

FIG. 1 is a plan view showing a first embodiment of the present invention.

FIG. 2 is an enlarged view of a main part in cross section taken along line AA of FIG. 1;

FIG. 3 is a perspective view corresponding to FIG. 1, showing a conventional blower.

FIG. 4 is an enlarged longitudinal sectional view of a main part of FIG. 3;

[Explanation of symbols]

 Reference Signs List 1 casing 1c void 1d air flow path 3 blade 4 suction port 5 discharge port 6 connection pipe 6a flange 7 mounting bracket 7a projection 7b fastening section

Claims (2)

(57) [Claims] 1. A casing in which rotating blades are accommodated in a space forming an air flow path, and a casing provided with a suction port and a discharge port corresponding to the blades, and a flange provided at an end portion are mounted on an upper side.
The outlet is overlapped with the outer edge of the casing.
And connecting tubes, fitted with the casing to the connecting pipe
A blower comprising: a mounting bracket mounted on the casing and arranged on the outer surface so as to overlap with the flange. 2. A projection projecting from one side and projecting outside the casing.
A projection locked in a fitting hole provided in the projection, and the projection
The blower according to claim 1 , characterized in that the blower is provided with a fitting protruding from the other side opposite to the casing and having a fastening portion fastened to the casing .