JPH02146293A - Industrial fan - Google Patents

Abstract

PURPOSE:To make the form of a stand simple and reduce the cost by forming the title fan of a stand supporting a fan motor and plural legs with their edges to be inserted into the lower inner side of the stand and fixing the legs along the inner peripheral surface of the stand with equal spaces. CONSTITUTION:A stand 3 holding a fan 1 and a fan motor 2 is formed cylindrical, and at the lower side face of the stand 3, a tripod 4 is positioned and fixedly supported cut-and-raised up parts 5 are provided. Nuts 7 are further welded in the vicinity of the parts 5 and bolts 6 are screwed therein. In fixing three legs 4, the legs 4 are brought in contact with the parts 5 of the stand 3 so as to be positioned and the fixing bolts 6 are fastened to tapped holes provided at the legs 4 so as to secure the tripod 4 fixedly at the stand 3. With this structure, a stable industrial fan with a tripod can be obtained just by inserting the tripod into the lower part of the stand 3 and fastening the fixing bolts 6 after positioning.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an industrial electric fan used in factories and the like.

2. Description of the Related Art In general, many industrial fans used in factories are equipped with tripod legs.

Conventionally, this type of electric fan had a configuration as shown in FIG. That is, the stand 103 made of steel plate is the fan 101.
The tripod 106 has a holder 106 that holds the fan motor 100 and fixes the upper ends of the three legs 104 together. The stand 103 has a tripod 106 and a bolt.
By integrally connecting the nuts 1 and 7, a large installation area can be obtained during use, and the center of gravity can be completely stabilized.

In the above configuration, the industrial fan is assembled by the user by screwing the three legs 104 onto the holder 105 to complete the tripod 106, and then placing the stand 103 with the fan guard attached on top of the tripod 106. It was to be fixed with screws using Porto Nara) 107'i.

Problems to be Solved by the Invention However, in the conventional configuration described above, the stand 103 and tripod 106 of the industrial fan are separated, so there is a problem that the number of parts is large and it takes time and effort for the user to assemble. Ta. Further, on the manufacturer's side, since the stand 103 is formed into a complicated shape by processing a steel plate, there is a problem in that the number of processing steps is large and the manufacturing cost is high.

The present invention is intended to solve these problems, and aims to provide a low-cost industrial-use Isofil that reduces the number of parts, reduces assembly effort, and has a simplified stand shape. be.

Means for Solving the Problems In order to solve the above problems, the present invention provides a fan motor that pivotally supports a fan, a stand that supports the fan motor, and a plurality of legs whose tips are inserted inside the lower part of the stand. The membrane has structural members fixed at regular intervals along the inner peripheral surface of the stand.

Function: With this configuration, the nutand that holds the fan and fan motor is entirely shaped into a substantially cylindrical shape, so that it can be directly inserted into and fixed to a plurality of presser stands.

EXAMPLE An example of the present invention will be described below with reference to FIGS. 1 and 2.

As shown in the figure, the stand 3 that holds the fan 1 and the fan motor 2 is formed into a cylindrical shape.
In addition, a plurality of cutouts 6 for positioning and fixed support of the tripod 4 are provided, a nut is welded near the cutouts 6, and a fixing bolt 6 is screwed into the nut 7. When fixing the three legs 4, place the legs 4 against the cutouts at the bottom of the stand 3 to position them, and then tighten the fixing bolts 6 into the screw holes provided in the legs 4. 3 is securely fixed.

With the above configuration, the legs 4 are connected to the stand 3 by inserting the tripod 4 metal directly into the lower part of the stand 3, positioning it, and then tightening the fixing bolt 6, so that it can be used as a stable industrial fan with tripod legs. can be used.

In addition, since the stand 3 is formed by cutting a cylindrical pipe and only partially processing it, there is no need for conventional mold pressing and bending of steel plates, and the number of processing steps can be significantly reduced. can.

Effects of the Invention According to the present invention, the stand has a cylindrical shape,
Since a plurality of legs are directly connected, the number of leg parts and assembly man-hours as well as the manufacturing man-hours of the stand can be reduced, making it possible to realize a low-cost industrial electric fan without sacrificing functionality.

[Brief explanation of the drawing]

FIG. 1 is a side view of an industrial fan according to an embodiment of the present invention, FIG. 2 is a perspective view of essential parts of the industrial candy shell, and FIG. 3 is a side view of a conventional industrial fan. 1...Fan, 2...Fan motor,
3...stand, 4...legs. Name of agent: Patent attorney Shigetaka Awano and 1 other person1-
1177-/

Claims (1)

[Claims] It has a fan motor that pivotally supports the fan, a substantially cylindrical stand that supports the fan motor, and a plurality of legs whose tips are inserted inside the lower part of the stand, and the legs are attached to the inner peripheral surface of the stand. Industrial fans fixed at equal intervals along the line.