JP2662167B2 - Motor support device for ventilation fan - 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 support device for a ventilation fan.

[0002]

2. Description of the Related Art Conventionally, a motor support device for a ventilation fan has generally been configured to support and fix a motor for driving a blade at the center of four independent columns provided in a ventilation fan body.
Since the air to be exhausted passes through the portion of the support, the support is contaminated and the airflow resistance is increased.
For these reasons, in recent years, there has been a demand for a motor support device for a ventilation fan which is excellent in cleaning performance and has low air resistance.To cope with this, by reducing the number of pillars,
There is provided one that improves the cleanability and reduces the air resistance. Hereinafter, the configuration will be described with reference to FIGS. 7 and 8.

As shown in the figure, each of both ends of a band-shaped plate is bent in the same direction and at a substantially right angle to form a fixing portion 1.
No. 01, a semi-circular holding portion 102 is formed substantially at the center between these fixing portions 101, and a support leg 103 is formed between both ends of the holding portion 102 and the fixing portion 101. A pair of two pieces 104, and an annular holding section 1 that holds a blade driving motor 105 with both holding sections 102
No. 06 is formed, and the support legs 103 are brought into contact with each other and spot-welded to fix the fixing portion 101 to the lower and upper surfaces of the inner wall surface of the frame-shaped ventilation fan main body 107. Then, the motor 105 is inserted into the holding section 106, and the motor fixing section 108 of the motor 105 is screwed into the motor supporting section 109 provided on the holding section 102 of the supporting piece 104.
Was fixed by.

[0004]

In such a conventional motor support device for a ventilating fan, two heavy motors 105 are used.
Because the support legs 103 are fixedly supported, the support legs 103 are spot-welded to ensure the strength of the motor support device for the ventilation fan itself, so it is necessary to prepare large-scale facilities for spot welding. In addition, there is a problem that a processing step for spot welding traces and the like occur, thereby increasing the manufacturing cost.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, and improves the strength of a motor support device for a ventilation fan without spot welding the support legs, thereby reducing the manufacturing cost. It is a first object to provide a device.

A second object is to improve the strength of the motor support device for a ventilation fan and to improve the assemblability thereof without spot welding the support legs.

[0007]

A first means for attaining the first object of the present invention is a holding portion in which a band-shaped plate is formed in a semi-annular shape, and opposite to each other from both ends of the holding portion. A flat support leg extending in the direction, a folded portion extending in a direction of being folded in a substantially U-shape at one end of one of the support legs, and each of the support legs. A pair of two support pieces each consisting of a fixed part extending in the same right angle direction from the front end part is formed as a pair, and these support pieces are placed on the folded back part of the support leg part of one support piece and the plane of the support leg part of the other support piece. The fixing portion is inserted and fixed so as to be fitted to each other, and a support portion of an annular motor composed of the two holding portions is formed at the center portion, and the fixing portion is a frame-shaped ventilation fan main body. Of a motor support device for a ventilation fan fixed on both sides In which was formed.

A second means for achieving the second object is a holding portion formed by forming a band-shaped plate material in a semi-annular shape, and a flat supporting member extending in opposite directions from both ends of the holding portion. A leg, a first bent portion extending at one side end of one of the support legs in a direction perpendicular to a planar portion of the support leg, and the support leg And a fixing portion extending in the same right-angle direction from each of the end portions of the supporting portion is formed as a pair, and the first bending portion of the supporting leg of one of the supporting portions is attached to the other supporting portion. A side end of the support leg in which the first bent portion is not provided;
And a first bent portion of the support leg of the other support piece is brought into contact with a side end of the support leg on which the first bent portion of the one support piece is not provided. Abutment is formed at the center to form an annular motor support portion consisting of the two holding portions, and the fixed portion is fixed to opposite side surfaces of a frame-shaped ventilation fan body and provided in a bridge shape. This is a configuration of a motor support device for a ventilation fan.

A third means for achieving the second object is a holding portion formed by forming a band-shaped plate material in a semi-annular shape, and a flat support extending in opposite directions from both ends of the holding portion. A leg, a first bent portion extending at one side end of one of the support legs in a direction perpendicular to the flat portion of the support leg, and another support A second leg extending in the same direction as the first bent portion at a side end of the one support leg opposite to the first bent portion of the one leg.
And a pair of support pieces each including a bent portion and a fixed portion extending in the same right angle direction from the respective distal end portions of the support leg portions, and a first support leg portion of one of these support pieces is provided. The second of the support leg of the other support piece at the bent portion
A side end of the support leg of the other support piece opposite to the second bent part of the support leg of the one support piece; The second bent portion of the support leg of the one support piece has a side end opposite to the first bent portion of the support leg of the other support piece, and the second bent portion of the support leg of the other support piece. An end portion of the support leg of one of the support pieces, which is opposite to the first bent portion, is brought into contact with the second bent portion, and a support portion for an annular motor including two of the holding portions in the center portion. , And the above-mentioned fixing portion is fixed to both opposing side surfaces of a frame-shaped ventilation fan main body to provide a bridge-shaped motor support device for a ventilation fan.

A fourth means for achieving the second object is a holding portion formed by forming a band-shaped plate material in a semi-annular shape, and a flat support extending in opposite directions from both ends of the holding portion. A leg, a projection protruding from the flat portion of one of the support legs on the concave side of the holding portion, and the holding portion of the flat portion of the other support leg. A pair of two support pieces each including the protrusion and the engagement hole opened at the target position on the basis of the reference point, and a fixing part extending in the same right angle direction from each of the tip ends of the support legs are provided as a pair. The convex portion of the support leg of the other support piece is engaged with the engagement hole of the support leg, and the planar portions are brought into contact with each other, so that the annular portion formed of the two holding portions at the center portion. A motor support portion is formed, and the fixed portion is fixed to opposite side surfaces of a frame-shaped ventilation fan main body to form a bridge. It is obtained by the configuration of the ventilating fan motor support device formed by providing a Jo.

A fifth means for achieving the second object is a holding portion formed by forming a band-shaped plate material in a semi-annular shape, and a flat support extending from both ends of the holding portion in opposite directions. A leg, a cut-and-raised portion protruding from the flat portion of one of the support legs on the concave side of the holding portion, and the holding of the flat portion of the other support leg. A pair of support pieces each including the cut-and-raised portion, an engagement hole opened at a target position, and a fixed portion extending in the same right angle direction from the respective distal end portion of the support leg portion with respect to one portion. Cut-and-raised part of the support leg of the other support piece in the engagement hole of the support leg of one piece, and cut and raised of the support leg of the one support piece in the engagement hole of the support leg of the other support piece. The parts are engaged, and the planar parts are brought into contact with each other,
A motor for a ventilation fan, in which a support portion of an annular motor composed of two holding portions is formed in a central portion, and the fixing portion is fixed to opposite side surfaces of a frame-shaped ventilation fan body and provided in a bridge shape. This is a configuration of a supporting device.

A sixth means for achieving the second object is a holding portion formed by forming a band-shaped plate material in a semi-annular shape, and a flat supporting member extending in opposite directions from both ends of the holding portion. A leg, a projection protruding from the flat portion of one of the support legs on the concave side of the holding portion, and the holding portion of the flat portion of the other support leg. A pair of two support pieces each including the convex portion, a concave portion protruding from the convex shape side of the sandwiching portion at the target position, and a fixed portion extending in the same right angle direction from the respective distal end portion of the support leg portion. The projection of the support leg of the other support piece is formed in the recess of the support leg of the other support piece, and the protrusion of the support leg of the one support piece is formed in the recess of the support leg of the other support piece. Is engaged,
Further, the planar portions are brought into contact with each other to form an annular motor support portion formed of the two holding portions at the center portion, and the fixing portion has a frame-like configuration.

[0013]

According to the first aspect of the present invention, the strength of the supporting leg is improved by providing a folded portion at the side end of one supporting leg of the supporting piece. By inserting the flat portion of the support leg of the other support piece into the folded portion of the support leg of the other, and by overlapping and fixing so as to fit each other to form a motor support device for a ventilation fan, the support leg This prevents the parts from shifting in the direction of the folded part and the support legs from being separated from each other, thereby improving the strength of the motor support device for a ventilation fan.

According to the structure of the second means, the strength of the support leg is improved by providing the first bent portion at the side end of one of the support legs of the support piece. Side end of the support leg in which the first bent portion of the other support piece is not provided in the first bent portion of the support leg portion, and first bend of the support leg portion of the other support piece By making the side end portions of the support legs, on which the first bent portion of one of the support pieces is not provided, contact the side ends of the support legs to form the motor support device for the ventilation fan, the support legs are connected to each other by the first bent portion. Since it is prevented from shifting in the direction, the strength of the motor support device for the ventilation fan is improved, and the first bent portion is provided in a direction perpendicular to the flat portion of the support leg. The support legs of the support piece are Will be able to match, it becomes possible to improve the assembling property.

According to the configuration of the third means, a first bent portion is provided at a side end of one support leg of the support piece, and a second bent portion is provided at a side end of the other support leg. By providing the support leg, the strength of the support leg is improved, and a side edge of the support leg of the other support piece opposite to the second bent portion of the support leg of the other support piece is improved. And a first bent portion of the support leg of the other support piece, a side end opposite to the second bent portion of the support leg of the one support piece, and a support leg portion of the support leg of the one support piece. One end of the support leg of the other support piece is opposite to the first end of the support leg of the other support piece, and one end of the support leg of the other support piece is attached to the second bent portion of the support leg of the other support piece. Forming a motor support device for a ventilation fan by abutting the side ends of the support legs opposite to the first bent portion Therefore, the support legs are prevented from shifting in the direction of the first bent portion and the second bent portion, and the strength of the motor support device for the ventilation fan is improved. , And the second bent portion are provided at right angles to the planar portion of the support leg, so that the support leg of the support piece can be combined with a simple linear motion, and the assembly thereof can be performed. The performance can be improved.

Further, according to the configuration of the fourth means, a convex portion is provided on the planar portion of one support leg of the support piece, and an engagement hole is provided on the planar portion of the other support leg, so that one support leg is provided. The projection of the support leg of the other support piece is provided in the engagement hole of the support leg of the other support piece, and the projection of the support leg of the support piece is provided in the engagement hole of the support foot of the other support piece. By forming the motor support device for the ventilation fan by being engaged, the support legs are prevented from shifting in the contact surface direction, and the strength of the motor support device for the ventilation fan is improved, and The support legs of the pieces can be combined by a simple linear motion, and the assemblability can be improved.

Further, according to the fifth means, a flat portion of one of the support legs of the support piece is cut and raised, and an engagement hole is provided in the flat portion of the other support leg. Cut-and-raised portion of the support leg of the other support piece into the engagement hole of the support leg of the support piece, and cut-off of the support leg of the one support piece into the engagement hole of the support leg of the other support piece. By engaging the raised parts to form a motor support device for the ventilation fan,
The support legs are prevented from being shifted from each other in the contact surface direction, so that the strength of the motor support device for the ventilation fan is improved, and the support legs of the support pieces are combined by a simple linear operation. As a result, the assemblability can be improved.

According to the configuration of the sixth means, a convex portion is provided in the planar portion of one of the support legs of the support piece, and a concave portion is provided in the planar portion of the other support leg portion. The protrusion of the support leg of one support piece is engaged with the protrusion of the support leg of the other support piece in the recess of the support leg, and the protrusion of the support leg of one support piece is engaged with the recess of the support leg of the other support piece. By forming the motor support device, the support legs are prevented from shifting in the contact surface direction, the strength of the motor support device for the ventilation fan is improved, and the support legs of the support pieces are The combination can be achieved by a simple linear operation, and the assemblability can be improved.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIG.

In this embodiment, only the motor support device for the ventilation fan is shown, and the main body of the ventilation fan for fixing the same and the motor for driving the blade fixed to the motor support device for the ventilation fan have the same shape as the conventional one. Omitted.

As shown in the figure, each of both ends of the band-shaped plate is bent in the same direction and substantially at a right angle to form a fixing portion 1.
And a semi-circular holding portion 2 is formed substantially at the center between the fixing portions 1, and both ends of the holding portion 2 and the fixing portion 1 are formed.
The support leg 3 is formed between the support leg 3 and a pair of two support pieces 5 each having a folded portion 4 extending in a direction of being folded into a substantially U-shape at one side end of the support leg 3 , These support pieces 5 are overlapped so that the flat portions of the support legs 3 of the other support piece 5 are inserted into the folded portions 4 of the support legs 3 of the one support piece 5 and fitted to each other. An annular holding portion 6 comprising two holding portions 2 is formed at the center portion, and the fixing portion 1 is fixed to the lower and upper surfaces of the inner wall surface of a frame-shaped ventilation fan main body (not shown). Then, a motor (not shown) is inserted into the holding portion 6, and a motor fixing portion of the motor is fixed to a motor supporting portion 7 provided on the holding portion 2 of the supporting piece 5 by a screw (not shown). is there.

In the above configuration, the folded back portion 4 is provided at the side end of one support leg 3 of the support piece 5,
The strength of the support leg 3 is improved, and the flat portion of the support leg 3 of the other support piece 5 is inserted into the folded portion 4 of the support leg 3 of the one support piece 5 and fitted together. By forming the motor support device for a ventilation fan by overlapping and fixing them together, the support legs 3 tend to shift in the direction of the base end of the folded portion 4 and the support legs 3 separate. Is prevented, and the strength of the motor support device for a ventilation fan is improved.

As described above, according to the motor support device for the ventilation fan of the embodiment of the present invention, the strength of the motor support device for the ventilation fan can be improved without spot welding the support legs 3 as in the related art. In addition, it is not necessary to prepare a large-scale facility for performing spot welding, and it is not necessary to perform a process for treating spot welding traces, so that the manufacturing cost can be significantly reduced.

Next, a second embodiment of the present invention will be described with reference to FIG. The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

As shown in the drawing, this embodiment is different from the first embodiment in that one side end of one support leg 3A is perpendicular to the plane portion of this support leg 3A. A pair of two support pieces 5A extending from the first bent portion 4A is provided, and the first bent portion 4A of the support leg 3A of one support piece 5A of these support pieces 5A is connected to the other support piece 5A. The side end of the supporting leg 3A where the first bent portion 4A is not provided, and the first end of the supporting leg 3A of the other supporting piece 5A.
Is characterized in that the side ends of the support leg 3A, on which the first bent portion 4A of the one support piece 5A is not provided, are brought into contact with the bent portion 4A, and the planar portions are brought into contact with each other. .

In the above configuration, by providing the first bent portion 4A at the side end of one support leg 3A of the support piece 5A, the strength of the support leg 3A is improved, and the one support piece 5A A side end of the support leg 3A where the first bent portion 4A of the other support piece 5A is not provided on the first bent portion 4A of the support leg 3A, and a support leg of the other support piece 5A. By making the side end of the support leg 3A of the support piece 5A, on which the first bent portion 4A of the support piece 5A is not provided, abut on the first bent portion 4A of the 3A to form a motor support device for a ventilation fan, The support legs 3A are prevented from shifting from each other in the direction of the first bent portion 4A, the strength of the motor support device for a ventilation fan is improved, and the first bent portion 4A is connected to the support leg 3A. Direction perpendicular to the flat part Since it is provided, the support piece 5A
Can be combined by a simple linear motion.

As described above, according to the motor support device for the ventilation fan of the embodiment of the present invention, the strength of the motor support device for the ventilation fan can be improved without spot welding the support legs 3A as in the related art. The assemblability can be improved.

Next, a third embodiment of the present invention will be described with reference to FIG. The same components as those in the second embodiment are denoted by the same reference numerals, and description thereof will be omitted.

As shown in the drawing, this embodiment is different from the second embodiment in that one support leg 3B of the other support leg 3B is provided.
B is a pair of two support pieces 5B each having a second bent portion 8 extending in the same direction as the first bent portion 4A at the side end opposite to the first bent portion 4A. First bent portion 4A of support leg 3B of one support piece 5B of 5B
The other end of the support leg 3B of the other support piece 5B on the side opposite to the second bent portion 8 and the other support piece 5B
The first bent portion 4A of the support leg 3B has a side end opposite to the second bent portion 8 of the support leg 3B of one support piece 5B, and the first end of the support leg 3B of the one support piece 5B. The second bent portion 8 has a side edge of the support leg 3B of the other support piece 5B opposite to the first bent portion 4A, and a second bent portion of the support leg 3B of the other support piece 5B. 8 is characterized in that a side end of the support leg 3B of one support piece 5B, which is opposite to the first bent portion 4A, is brought into contact, and the planar portions are brought into contact with each other.

In the above configuration, the first bent portion 4A is provided at the side end of one support leg 3B of the support piece 5B, and the second bent portion 8 is provided at the side end of the other support leg 3B. Thus, the strength of the support leg 3B is improved, and the first bent portion 4A of the support leg 3B of one support piece 5B is connected to the second bent portion 8 of the support leg 3B of the other support piece 5B. And the first bent portion 4A of the support leg 3B of the other support piece 5B on the side opposite to the second bent portion 8 of the support leg 3B of the one support piece 5B. The end, the second bent portion 8 of the support leg 3B of one support piece 5B, the side end opposite to the first bent portion 4A of the support leg 3B of the other support piece 5B, and the other. Of the one support piece 5B to the second bent portion 8 of the support leg 3B of the support piece 5B. The first bent part 4A of the Jiashi portion 3B
By forming the motor support device for the ventilation fan by abutting the side ends opposite to the above, the support legs 3B tend to shift in the direction of the first bent portion 4A and the second bent portion 8. Is prevented, the strength of the motor support device for the ventilation fan is improved, and the first bent portion 4A,
Since the second bent portion 8 is provided in a direction perpendicular to the flat portion of the support leg 3B, the support leg 3B of the support piece 5B can be combined by a simple linear motion. Become.

As described above, according to the motor support device for a ventilation fan according to the embodiment of the present invention, the strength of the motor support device for a ventilation fan can be improved without spot welding the support legs 3B as in the related art. The assemblability can be improved.

Next, a fourth embodiment of the present invention will be described with reference to FIG. The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

As shown in the drawing, the present embodiment is different from the first embodiment in that a projection 9 is protruded from the flat portion of one support leg 3C on the concave side of the holding portion 2 and the other. The supporting leg 3C of one of the supporting pieces 5C is formed as a pair of two supporting pieces 5C each having a projection 9 and an engaging hole 10 opened at a target position with reference to the holding portion 2 of the planar portion of the supporting leg 3C. The protrusion 9 of the support leg 3C of the other support piece 5C is provided in the engagement hole 10, and the support leg 3C of the support piece 5C is provided in the engagement hole 10 of the support leg 3C of the other support piece 5C. It is characterized in that the projections 9 are engaged and the planar portions are in contact with each other.

In the above configuration, the projection 9 is provided on the planar portion of one support leg 3C of the support piece 5C, and the engaging hole 10 is provided on the planar portion of the other support leg 3C. The other support piece 5 is inserted into the engagement hole 10 of the support leg 3C of the support 5C.
The projection 9 of the support leg 3C of C and the other support piece 5
By engaging the projection 9 of the support leg 3C of one support piece 5C with the engagement hole 10 of the support leg 3C of C to form a motor support device for a ventilation fan, the support legs 3C abut each other. It is prevented from shifting in the plane direction, the strength of the motor support device for the ventilation fan is improved, and the support piece 5C
Can be combined by a simple linear motion.

As described above, according to the motor support device for the ventilation fan of the embodiment of the present invention, the strength of the motor support device for the ventilation fan can be improved without spot welding the support legs 3C as in the related art. The assemblability can be improved.

Next, a fifth embodiment of the present invention will be described with reference to FIG. The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

As shown in the drawing, the present embodiment is different from the first embodiment in that a cut-and-raised portion 11 is protruded from the flat portion of one support leg 3D on the concave side of the holding portion 2 and the other. A pair of two support pieces 5D each having a cut-and-raised portion 11 and an engagement hole 12 opened at a target position with reference to the holding portion 2 of the flat portion of one support leg 3D, and a support leg of one support piece 5D. The cut-and-raised portion 11 of the support leg 3D of the other support piece 5D is provided in the 3D engagement hole 12 and the support leg of the one support piece 5D is provided in the engagement hole 12 of the support leg 3D of the other support piece 5D. The feature is that the cut-and-raised portion 11 of the portion 3D is engaged and the planar portions are brought into contact with each other.

In the above configuration, a cut-and-raised portion 11 is provided in the planar portion of one support leg 3D of the support piece 5D, and an engagement hole 12 is provided in the planar portion of the other support leg 3D. One of the cut-and-raised portions 11 of the support leg 3D of the other support piece 5D is inserted into the engagement hole 12 of the support leg 3D of the piece 5D, and the other is inserted into the engagement hole 12 of the support leg 3D of the other support piece 5D. By engaging the cut-and-raised portion 11 of the support leg 3D of the support piece 5D to form a motor support device for a ventilation fan, it is possible to prevent the support legs 3D from shifting in the contact surface direction. Thus, the strength of the motor support device for the ventilation fan is improved, and the support legs 3D of the support pieces 5D can be combined by a simple linear operation.

As described above, according to the motor support device for a ventilation fan according to the embodiment of the present invention, the strength of the motor support device for a ventilation fan can be improved without spot welding the support legs 3D as in the related art. The assemblability can be improved.

Next, a sixth embodiment of the present invention will be described with reference to FIG. The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

As shown in the drawing, the present embodiment is different from the first embodiment in that a projection 13 is protruded from the flat portion of one support leg 3E on the concave side of the holding portion 2 and the other. Support leg 3E
A support piece 5E having a convex portion 13 and a concave portion 14 protruding from the convex shape side of the holding portion 2 at a target position with reference to the holding portion 2 of the flat portion of FIG.
As a pair, the concave portion 14 of the support leg 3E of one support piece 5E, the convex portion 13 of the support leg 3E of the other support piece 5E, and the concave portion of the support leg 3E of the other support piece 5E. 14 is characterized in that the projection 13 of the support leg 3D of the one support piece 5E is engaged and the planar portions are brought into contact with each other.

In the above configuration, the convex portion 13 is provided on the planar portion of one support leg 3E of the support piece 5E, and the concave portion 14 is provided on the planar portion of the other support leg 3E. The other support piece 5E is inserted into the recess 14 of the support leg 3E.
Of the supporting leg 3E and the other supporting piece 5
By engaging the projection 13 of the support leg 3E of one support piece 5E with the recess 14 of the support leg 3E of E to form a motor support device for a ventilation fan, the support legs 3E are brought into contact with each other. Is prevented, the strength of the motor support device for the ventilation fan is improved, and the support piece 5E
Can be combined by a simple linear motion, and since the recess 14 does not penetrate the support leg 3E like an engagement hole, the support leg 3E
Is improved.

As described above, according to the motor support device for a ventilation fan of the embodiment of the present invention, the strength of the motor support device for a ventilation fan can be improved without spot welding the support legs 3E as in the related art. The assemblability can be improved.

[0044]

As is clear from the above embodiments, according to the present invention, the strength of the support leg is improved by providing the folded portion at the side end of one of the support legs of the support piece.
Also, the flat portions of the support legs of the other support piece are inserted into the folded portions of the support legs of the one support piece, and they are overlapped and fixed so as to fit each other to form a motor support device for a ventilation fan. As a result, the strength of the motor support device for the ventilation fan is improved without having to spot-weld the support legs, eliminating the need for preparing large-scale equipment for spot welding, and eliminating the process of treating spot welding traces. A motor support device for a ventilating fan, which is unnecessary and has the effect of significantly reducing the manufacturing cost, can be provided.

Further, by providing the first bent portion at the side end of one of the support legs of the support piece, the strength of the support leg is improved, and the first of the support legs of the one support piece is improved. The first bent portion of the support leg of the other support piece and the side end of the support leg where the first bent portion of the other support piece is not provided at the bent portion, By forming the motor support device for the ventilation fan by abutting the side ends of the support leg portion where the bent portion is not provided, the strength of the motor support device for the ventilation fan can be obtained without spot welding the support legs. By providing the first bent portion in a direction perpendicular to the flat portion of the support leg, the support leg of the support piece can be combined with a simple linear motion, so that To improve assemblability Can.

Also, by providing a first bent portion at the side end of one support leg of the support piece and a second bent portion at the side end of the other support leg, The strength is improved, and the first bent portion of the support leg of the one support piece has a side end opposite to the second bent portion of the support leg of the other support piece, and the other support piece. The first bent portion of the support leg has a side end opposite to the second bent portion of the support leg of one support piece, and the other end has the second bent portion of the support leg of one support piece. A first end of the support leg of one support piece is attached to a side end of the support leg of the support piece opposite to the first bent portion and a second bent portion of the support leg of the other support piece. By forming the motor support device for the ventilation fan by abutting the side end opposite to the bent portion, the support legs are connected to each other. Even if spot welding is not performed, the strength of the motor support device for a ventilation fan is improved, and the first bent portion and the second bent portion are provided in a direction perpendicular to the flat portion of the support leg, so that the support piece is provided. Can be combined by a simple linear motion, so that the assemblability can be improved.

Further, a convex portion is provided on the planar portion of one support leg of the support piece, and an engaging hole is provided on the planar portion of the other support leg, so that the engagement of the support leg portion of the one support piece is achieved. A motor for a ventilation fan is supported by engaging the projection of the support leg of the other support piece with the hole and the projection of the support leg of the one support piece into the engagement hole of the support leg of the other support piece. By forming the device, the strength of the motor support device for the ventilation fan is improved without spot welding the support legs, and the support legs of the support pieces can be combined with a simple linear motion. , The assemblability can be improved.

Further, a cut-and-raised portion is provided in the flat portion of one of the support legs of the support piece, and an engagement hole is provided in the flat portion of the other support leg, so that the support leg of the one support piece can be engaged. The cut-and-raised part of the support leg of the other support piece is engaged with the mating hole, and the cut-and-raised part of the support leg of the one support piece is engaged with the engagement hole of the support leg of the other support piece. The strength of the motor support device for the ventilation fan is improved without forming the support leg portions by spot welding, and the support leg portions of the support pieces can be combined with a simple linear motion. Therefore, assemblability can be improved.

Also, a convex portion is provided in the planar portion of one support leg of the support piece, and a concave portion is provided in the planar portion of the other support leg, and the other is provided in the concave portion of the support leg portion of one support piece. By engaging the protrusion of the support leg of one support piece with the protrusion of the support leg of the support piece, and the recess of the support leg of the other support piece, to form a motor support device for a ventilation fan. The strength of the motor support device for the ventilation fan is improved without spot welding the support legs, and the support legs of the support pieces can be combined with a simple linear motion, improving the assemblability. Can be done.

[Brief description of the drawings]

FIG. 1 is a perspective view of a motor support device for a ventilation fan according to a first embodiment of the present invention.

FIG. 2 is a perspective view of a motor support device for a ventilation fan according to the second embodiment.

FIG. 3 is a perspective view of a motor support device for a ventilation fan according to a third embodiment.

FIG. 4 is a perspective view of a motor support device for a ventilation fan according to a fourth embodiment.

FIG. 5 is a perspective view of a motor support device for a ventilation fan according to the fifth embodiment.

FIG. 6 is a perspective view of a motor support device for a ventilation fan according to a sixth embodiment.

FIG. 7 is a sectional view taken along the line AB in FIG. 6;

FIG. 8 is a perspective view of a conventional motor support device for a ventilation fan.

FIG. 9 is a perspective view showing a state in which the motor support device for the ventilation fan is fixed to the ventilation fan body.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fixed part 2 Nipping part 3 Support leg 3A Support leg 3B Support leg 3C Support leg 3D Support leg 3E Support leg 4 Folding part 4A 1st bending part 5 Support piece 5A Support piece 5B Support piece 5C Support Piece 5D support piece 5E support piece 6 holding part 8 second bent part 9 convex part 10 engaging hole 11 cut and raised part 12 engaging hole 13 convex part 14 concave part

Claims (6)

(57) [Claims] 1. A holding portion in which a band-shaped plate member is formed in a semi-annular shape, a flat supporting leg extending in opposite directions from both ends of the holding portion, and one of the supporting legs. A pair of two support pieces each consisting of a folded portion extending at one end of the portion in the direction of folding back into a substantially U-shape and a fixed portion extending in the same perpendicular direction from the respective distal end portions of the support leg portions. Of the support leg of the other support piece is inserted into the folded portion of the support leg of the other support piece, and overlapped and fixed so as to fit each other. A motor support device for a ventilation fan, wherein a support portion of an annular motor composed of a plurality of the holding portions is formed, and the fixing portion is fixed to both opposing side surfaces of a frame-shaped ventilation fan body and provided in a bridge shape. 2. A holding portion in which a band-shaped plate member is formed in a semi-annular shape, a flat supporting leg extending in opposite directions from both ends of the holding portion, and one of the supporting legs. A first bent portion extending in a direction perpendicular to the flat portion of the support leg at one end of the support leg, and a fixed portion extending in the same right direction from the tip of the support leg. A pair of support pieces is formed on the side of the support leg where the first bent portion of the support leg of one of the support pieces is not provided with the first bent portion of the other support piece. The end portion and the first bent portion of the support leg of the other support piece are brought into contact with the side end portion of the support leg where the first bent portion of the one support piece is not provided, and The parts are brought into contact with each other to support an annular motor consisting of the two holding parts at the center. A motor support device for a ventilating fan, wherein a portion is formed, and the fixing portion is fixed to opposite side surfaces of a frame-shaped ventilating fan body and provided in a bridge shape. 3. A holding portion in which a band-shaped plate member is formed in a semicircular shape, a flat supporting leg extending in opposite directions from both ends of the holding portion, and one of the supporting legs. A first bent portion extending at one end of the portion in a direction perpendicular to the flat portion of the support leg, and a first bent portion of the one support leg of the other support leg. A second bent portion extending in the same direction as the first bent portion at a side end portion opposite to the first bent portion, and a fixed portion extending in the same right angle direction from each of the distal ends of the support leg portions; A pair of two pieces, a first bent portion of the support leg of one of the support pieces and a side end opposite to the second bent portion of the support leg of the other support piece; And the first bent portion of the support leg of the other support piece is connected to the second bent portion of the support leg of the one support piece. A side end opposite to the bent portion, a second bent portion of the support leg of one support piece to a side end opposite to the first bent portion of the support leg of the other support piece,
And a second bent portion of the support leg of the other support piece is brought into contact with a side end of the support leg of the one support piece opposite to the first bent portion, and the flat portions are pressed against each other. In contact with each other, an annular motor support portion composed of the two holding portions is formed at the center portion, and the fixed portion is fixed to opposite side surfaces of a frame-shaped ventilation fan body and provided in a bridge shape. A motor support device for ventilation fans. 4. A holding portion in which a band-shaped plate material is formed in a semi-annular shape, a flat supporting leg extending in opposite directions from both ends of the holding portion, and one of these supporting legs. A convex portion projecting from the concave side of the holding portion on the flat portion of the portion, and an engaging hole opened at the target position with the convex portion with reference to the holding portion on the flat portion of the other support leg. When,
A pair of two support pieces each including a fixing part extending in the same right angle direction from the tip of each of the support legs is provided as a pair, and the support leg of the other support piece is inserted into the engagement hole of the support leg of one support piece. The projection of the support leg of one support piece is engaged with the projection of the support piece and the engagement hole of the support leg of the other support piece, and the flat portions are brought into contact with each other. A motor support device for a ventilation fan, wherein a support portion of an annular motor composed of a plurality of the holding portions is formed, and the fixing portion is fixed to both opposing side surfaces of a frame-shaped ventilation fan body and provided in a bridge shape. 5. A holding portion in which a band-shaped plate material is formed in a semi-annular shape, a flat supporting leg extending in opposite directions from both ends of the holding portion, and one of the supporting legs. A cut-and-raised portion protruding on the concave side of the holding portion in the flat portion of the portion, and a cut-and-raised portion and an opening opened at the target position with reference to the holding portion of the flat portion of the other support leg. A pair of two support pieces each including a mating hole and a fixing part extending in the same right angle direction from each of the front ends of the support legs, and the other support piece is inserted into the engagement hole of the support leg of one support piece. The cut-and-raised portion of the support leg of one support piece is engaged with the cut-and-raised portion of the support leg of the other support piece and the engagement hole of the support leg of the other support piece, and the planar portions are brought into contact with each other. Forming a support portion of an annular motor including two holding portions in the center portion, A motor support device for a ventilation fan, wherein the fixing portion is fixed to both opposing side surfaces of a frame-shaped ventilation fan body and provided in a bridge shape. 6. A holding portion in which a band-shaped plate member is formed in a semi-annular shape, a flat supporting leg extending in opposite directions from both ends of the holding portion, and one of the supporting legs. A convex portion protruding from the concave side of the holding portion on the flat portion of the portion, and the convex portion and the convex portion of the holding portion at the target position with reference to the holding portion of the flat portion of the other support leg. A support piece consisting of a concave portion protruding on the shape side and a fixed portion extending in the same right angle direction from the respective distal end portion of the support leg portion is provided by two.
As a pair, the protrusion of the support leg of the other support piece is provided in the recess of the support leg of the other support piece, and the support leg of the one support piece is provided in the recess of the support leg of the other support piece. The projections are engaged with each other and the flat portions are brought into contact with each other.
A motor support device for a ventilation fan, wherein a support portion of an annular motor composed of a plurality of the holding portions is formed, and the fixing portion is fixed to both opposing side surfaces of a frame-shaped ventilation fan body and provided in a bridge shape.