JP3315347B2 - Motor fan mounting structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a motor fan mounting structure which has a flange and is mounted and held by mounting screws.

[0002]

2. Description of the Related Art FIG. 13 is a front view of an example of a motor fan 1, in which mounting holes 2-1 formed at four corners of a flange 2 are used as mounting means. As the flange 2, a single flange type formed on one side or a double flange type formed on both end faces as shown in a partial side view in FIG. 14 is frequently used.

[0003] The mounting holes are often used in the form of a screw insertion hole 2-1 shown in FIG. 15 or a screw hole formation 2-2 shown in FIG.

[0004]

In the above-mentioned conventional construction, the mounting hole is formed directly in the flange. Therefore, in order to cope with a change in the mounting pitch or the specification of the mounting screw, a new flange is manufactured and therefore the motor fan is required. Had a problem that required new production.

[0005]

According to the motor fan mounting structure of the present invention, a mounting screw screw member is fitted to a mounting screw insertion portion of a flange mounting surface from the outer peripheral side of the flange, or a mounting screw of the flange mounting surface is provided. The insertion portion peripheral edge is provided with a shallow concave surface communicating with the flange outer peripheral edge, the concave surface is formed from a thin steel plate from the flange outer peripheral edge side, is formed of a thin steel plate, fits into the concave surface of the flange, and an interval corresponding to the fitting portion thickness of the flange And a notch or a hole formed in one surface for inserting the mounting screw, and a nut member for screwing the mounting screw is fixed to the outside of the other surface. It is formed by fitting the held mounting screw screw member,
Alternatively, the flange includes a concave portion in which a groove is formed on the outer peripheral edge side and a groove substantially parallel to the mounting surface is formed on a side wall of the concave portion.
It is configured such that the mounting means is formed by fitting a mounting screw screwing member having a side surface convex portion fitted into the groove of the concave portion side wall and having a through hole and a screw hole provided on the surface thereof. .

[0006] In the above-described configuration, the flange and the mounting screw threading member are separated from each other, so that the same motor fan can be used, and any mounting specification can be coped with only by selecting the mounting screw threading member. There is.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a partially enlarged view showing an embodiment of a mounting portion of an outer peripheral edge of a flange 2 according to the present invention. The mounting screw insertion portion of the flange 2 shown in FIG. 2 and a mounting screw screwing member shown in FIGS. 3 form an attachment means.

As shown in FIG. 2, an open U-shaped shallow concave surface 2-3 is formed on the outer peripheral edge of the flange at the peripheral edge of the mounting screw insertion portion 2-1 of the flange 2, and the concave surface 2-3 is formed on the concave surface 2-3. The mounting screw threading member 3 as shown in FIG. 3 is fitted to form the mounting means, and the U-shaped shallow concave surface 2-3 is formed at the base of the mounting screw peripheral edge forming the inner wall thereof. A portion is provided with an inclined surface so that mounting of the mounting screw threading member 3 is facilitated, and a tip portion thereof is formed in a shape corresponding to a fitting portion of the mounting screw screwing member 3. Mounting screw screw member 3 described above
Is a thin metal plate (for example, a steel plate) as shown in FIGS.
And two surfaces 3-11 and 3-12 corresponding to the thickness of the fitting portion of the flange 2 are formed. One of the surfaces has a notch 3-13 through which a mounting screw is inserted, and the other surface has a notch 3-13. A nut member 3-2 for screwing a mounting screw is fixedly provided outside the.

In this example, the tip of the inner portion of the concave surface 2-3 of the flange 2 has a semicircular shape as shown in FIG. 2, and the mounting screw threaded member 3 fitted therein is, as shown in FIG. The distal end of the mounting screw insertion portion 3-11 has a semicircular shape, and the opposite end is formed as a window 3-13 reaching the end of the surface on the side where the nut member 3-2 is fixed. The mounting screw insertion portion 3-11 of the mounting screw engaging member 3 may be a hole, and the shape of the inner portion of the concave surface 2-3 of the corresponding flange may be a circular projection corresponding to the hole 3-11.

FIG. 5 is a partially enlarged view showing another embodiment of the flange mounting portion according to the present invention. The mounting screw insertion portion 2-1 of the flange shown in FIG. 6 is engaged with the mounting screw thread shown in FIGS. The attachment means is formed with the member 3.

As shown in FIG. 6, an insertion hole 2-1 having a diameter sufficient for inserting a mounting screw is formed in the vicinity of the peripheral edge of the flange, and is communicated with the insertion hole 2-1. In this example, the mounting surface on the mounting is not the flange mounting surface but the surface of the mounting screw screwing member 3.

In this example, the mounting screw insertion portion 2-1 near the peripheral edge of the flange is formed as a hole, and the mounting screw screwing member 3 on the other side is formed as a mounting screw insertion portion 3-14 on one surface. However, these are not necessarily limited to holes, and the flange side may be an open U-shaped groove at the peripheral edge thereof.
A notch shape as shown in FIG.

The mounting screw screwing member 3 is not limited to steel, but may be resin-molded or non-ferrous metal, etc., in consideration of the strength of a small and light motor fan, and the screwing member may be a plate member. Although a description has been given of the configuration in which the nut is fixed to the nut, a well-known method of extruding a plate member by burring to form a screw hole may be employed.

FIGS. 9 and 10 are partially enlarged views of still another example. As shown in FIG. 11, a U-shaped notch 2-4 whose peripheral side is open is formed in the peripheral part of the flange 2, and the notch is formed. A mounting screw screw member 4 having a mounting hole 4-2 shown in FIG.
Is fitted. FIGS. 9 and 10 show that the same components can be used to change the mounting specification. As shown in FIG. 12, a mounting screw having a screw insertion hole 4-1 and a screw hole 4-2 formed in the surface thereof is provided. The state in which the mounting direction of the screw member 4 is changed in response to the change in the mounting pitch is shown.

In this example, a concave groove 2-41 is formed on the side wall of the U-shaped notch 2-4 of the flange, and the mounting screw screw member 4 is formed on the side wall with the concave groove 2-41 of the notch. The fitting projections 4-3 are formed and fixed and held by the fitting of the two.
Eventually, the motor fan is provided for mounting.

In the third example, the concave groove 2-41 on the inner side wall of the notch 2-4 formed in the flange and the projection on the side wall of the mounting screw engaging member 4 fitted in the concave groove 2-41 are opposite to each other. May be formed.

[0017]

According to the motor fan mounting structure of the present invention, the motor fan is shared only by separating the flange and the mounting screw screw member and forming a desired mounting structure on the mounting screw screw member. However, there is an advantage that it is possible to cope with an arbitrary mounting specification only by selecting the specification of the mounting screw screw member.

[Brief description of the drawings]

FIG. 1 is a partially enlarged view of an example of a motor fan mounting structure according to the present invention.

FIG. 2 is a perspective view illustrating a flange mounting screw insertion portion of the example of FIG. 1;

FIG. 3 is a perspective view of a mounting screw screw member of the example of FIG. 1;

FIG. 4 is a cross-sectional view of the example of FIG.

FIG. 5 is a partially enlarged view of another example of the motor fan mounting structure according to the present invention.

FIG. 6 is a perspective view showing a flange mounting screw insertion portion of the example of FIG. 5;

FIG. 7 is a perspective view of a mounting screw engagement member of the example of FIG. 5;

8 is a cross-sectional view of the example of FIG.

FIG. 9 is a partially enlarged view of a third example of the motor fan mounting structure according to the present invention.

FIG. 10 is a partially enlarged view of the example of FIG. 9 in which a mounting state of a mounting screw engaging member is changed.

FIG. 11 is a partially enlarged view showing a mounting screw insertion portion of the flange in the example of FIGS. 9 and 10;

FIG. 12 is a perspective view of the mounting screw threaded member of the example of FIGS.

FIG. 13 is a front view of an example of a motor fan according to the present invention.

FIG. 14 is a partial side view of the double flange type corresponding to FIG.

FIG. 15 is a partially enlarged view of a mounting screw insertion portion in the example of FIG. 13;

FIG. 16 is a partially enlarged view of a mounting screw insertion portion in which the mounting hole corresponding to FIG. 13 is a screw hole.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Motor fan 2 Flange 2-1 Mounting screw insertion hole 2-2 Mounting screw hole 2-3 Shallow concave surface 2-4 Concave opening on peripheral edge 2-41 Groove on concave side wall 3 Mounting screw screw member 3-1 Screw connection Member body 3-11 First surface 3-12 Second surface separated from first surface by a distance corresponding to the thickness of the flange attachment portion 3-13 Notch formed on first surface 3-14 Mounting screw insertion hole formed on one surface 3-2 Nut member fixedly arranged on the second surface 4 Another mounting screw screw member 4-1 Mounting screw insertion hole 4-2 Screw hole 4-3 Side wall Protrusions formed on

Claims (5)

(57) [Claims] 1. A motor fan having a flange and mounted and held by a mounting screw, wherein a peripheral edge of the mounting screw insertion portion of the flange mounting surface has a shallow concave surface communicating with an outer peripheral edge of the flange. In a motor fan mounting structure in which a mounting screw screw member is fitted to form mounting means, the mounting screw screw member may be a thin metal plate.
And two substantially parallel surfaces which fit into the concave surface of the flange and have a spacing corresponding to the thickness of the fitting portion of the flange, and one of the surfaces has a notch through which a mounting screw is inserted. Alternatively, a hole is formed, and a nut member for screwing the mounting screw is fixedly held outside the other surface . 2. A mounting structure for a motor fan comprising a flange and mounted and held by mounting screws, wherein a mounting screw screwing member is fitted into the mounting screw insertion portion of the flange mounting surface from the outer peripheral side of the flange. The mounting screw threaded member has two substantially parallel surfaces formed of a thin metal plate and having a gap corresponding to the fitting thickness of the flange, and one of the surfaces is provided with a mounting screw. A notch or a hole to be inserted is formed, and a nut member for screwing the mounting screw is fixedly held outside the other surface . 3. A mounting structure for a motor fan, comprising a flange and mounted and held by mounting screws, wherein the flange has an open concave portion on an outer peripheral side of the flange, and a mounting screw screw member is fitted into the concave portion for mounting. Means for mounting the motor fan. 4. A groove substantially parallel to the mounting surface is formed on a side wall of the concave portion of the flange, and a convex portion that fits into the groove of the side wall of the concave portion is formed on a side surface of a mounting screw threaded member fitted into the concave portion. The mounting structure for a motor fan according to claim 3, wherein the mounting means is formed by fitting the both and being formed. 5. The motor fan mounting structure according to claim 3, wherein the mounting screw screw member has a through hole and a screw hole.