JP3297585B2 - Pressurized 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 pressurized ventilation fan which is installed in an opening provided on a wall surface and discharges dirty air in a room.

[0002]

2. Description of the Related Art In recent years, a pressurized ventilation fan that exhausts indoor polluted air to the outside using a ventilation fan installed on a wall surface in order to improve the environment of a living space has become widespread. The demand for inexpensive pressurized ventilation fans, which are easy to install and are inexpensive, is increasing with the spread of the fans.

An example of a conventional pressurized ventilation fan will be described with reference to FIGS. As shown in the figure, a motor 102 to which blades 101 are connected is supported by supporting legs 103, and a hole 104 for passing a screw 104 for attaching the supporting leg 103 and a hole 105 for passing a screw for attaching to a wall are provided.
And a screw 104 for attaching the support leg provided on the support leg 103 to a frame 107 provided with a projection 106 adjacent thereto.
A fixing member 109 provided with a hole 108 through which a screw for attaching to the wall is inserted is fixed on the wall side of the frame 107 so as to fit through the screw 104. Since the fixing position is determined by the protrusion 106, the hole of the frame 107 and the hole 1 of the reinforcing member 109
08 is prevented from shifting.

[0004]

In such a conventional pressurized ventilation fan, a hole 1 through which a screw for mounting to a wall is passed is provided.
When the position of the positioning projection 106 of the reinforcing member 109 is shifted from that of the reinforcing member 109, the hole 105 through which a screw for mounting on the wall provided on the frame 107 is inserted and the screw for mounting on the wall provided on the reinforcing member 109 are inserted. Since the hole 108 to be shifted is shifted, there is a problem that the processing accuracy must be increased and the cost increases.

An object of the present invention is to solve the above-mentioned problems, and it is a first object of the present invention to provide a pressurized ventilation fan to which a reinforcing member can be accurately attached without increasing processing accuracy.

A second object of the present invention is to make it possible to temporarily fix a pressure ventilation fan and to facilitate installation.

It is a third object of the present invention to make it possible to temporarily fix the frame so that the frame can be easily mounted and the frame can be processed at a low cost.

[0008]

According to the present invention, there is provided a pressurized ventilation fan according to the present invention, wherein a frame having a wind tunnel in which a blade is disposed at the center, a supporting leg for supporting an electric motor having the blade mounted on the frame, A mounting portion having a first insertion hole through which a leg mounting screw provided on the frame mounting side of the support leg is inserted, and a mounting portion through which the leg mounting screw provided in the frame portion corresponding to the mounting portion is inserted. A semi-drilled hole formed on the left and right sides of the second insertion hole, a half-drilled hole that can be punched through a fixing screw for fixing the frame body to the wall, and a half-drilled hole protruding to the rear side; A reinforcing member having left and right fitting push holes to be fitted into the semi-hollow portions formed in the holes, and a reinforcing member provided with a third insertion hole through which a leg mounting screw is inserted in the center; The reinforcing member positioned by inserting the insertion hole into the half hole is supported by the leg mounting screw via the mounting part. It is obtained by a structure attached to the frame with the legs.

According to the present invention, it is possible to provide a pressurized ventilation fan to which a reinforcing member can be accurately attached without increasing processing accuracy.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention provides a frame body in which a wind tunnel in which a blade is arranged is provided in the center;
Support legs for supporting the motor with the blades mounted on the frame,
A mounting portion having a first insertion hole through which a leg mounting screw provided on the frame mounting side of the support leg is inserted, and a mounting portion through which the leg mounting screw provided in the frame portion corresponding to the mounting portion is inserted. interpolating fitting and 2 of the insertion hole, and a half blanking hole punch punching possible semi penetrations on the left and right of the second insertion holes are projecting formed on the rear side, the semi missing portion formed in a semi-cut hole And a reinforcing member having a third insertion hole through which a leg mounting screw is inserted in the center thereof, and a fitting hole is inserted into a semi-hollow portion formed in the frame body, and positioning is performed. Attach the reinforcing member to the frame together with the support leg via the mounting part with the leg mounting screw ,
When fixing the frame to the wall, punch out the half-hole
And fixed to the penetrated half hole and the insertion hole of the reinforcing member.
The reinforcing member is attached to the frame at the same time when the support leg is attached to the frame by the leg mounting screw via the mounting portion, and the reinforcing member is formed by half-cutting formed on the frame. It is positioned by the half-holes provided in the holes, and by punching out the half-holes when mounting the frame, the half-holes provided in the frame penetrate and match the fitting and insertion holes of the reinforcing member, reinforcing The member has the effect of being accurately mounted.

An embodiment of the present invention will be described below with reference to FIGS.

[0012]

【Example】

(Embodiment 1) As shown in FIGS. 1 to 3, a motor 2 having blades 1 mounted thereon is supported by supporting legs 5 for supporting the motor 2 on a frame 4 provided with a wind tunnel 3 in which the blades 1 are arranged in the center. A mounting portion 8 having a first insertion hole 7 through which the leg mounting screw 6 is inserted is provided on the side of the frame 4 on which the leg mounting screw 6 is inserted. A fixing screw (not shown) for providing the insertion hole 9 and fixing the frame 4 to the left and right of the second insertion hole 9
A semi-drilled hole 11 protruding toward the rear side is provided with a half-drilled hole 10 that can be punched through, and has a substantially U-shaped cross section.
A third insertion hole 1 into which a leg attachment screw 6 is inserted at the center, having a left and right insertion hole 12 for insertion into the semi-through portion 10 formed in the hole.
3 is provided to form the reinforcing member 14.

In the above configuration, when the support leg 5 is mounted on the frame 4, the fitting hole 12 of the reinforcing member 14 is fitted into the half hole 10 formed in the half hole 11 provided in the frame 4. A first through hole 7 provided in the mounting portion 8 of the support leg 5 and a second through hole 9 provided in the frame 4;
After passing through the third insertion hole 13 provided in the reinforcing member 14, the fixing screw 15 is screwed into the supporting member 5 and the reinforcing member 14
Attach together.

When the frame 4 is fixed to the wall, the half hole 10 of the half hole 11 formed in the frame 4 is punched out. 10 and is positioned by being inserted into
The punched-out half-hole 11 and the insertion hole 12 match, and the fixing screw is fixed to the wall through the half-hole 11 of the frame 4 and the insertion hole 12 of the reinforcing member 14. Thus, the frame 4 is fixed while being reinforced by the reinforcing member 14.

As described above, according to the pressurized ventilation fan according to the first embodiment of the present invention, the reinforcing member 14 is positioned by inserting the fitting hole 12 into the half hole 10 of the frame 4, and the leg mounting screw is provided. 6, the support leg 5 and the reinforcing member 14 are attached to the frame 4 together, and the reinforcing member 14 is provided at an accurate position, and the position of the reinforcing member 14 is adjusted when the frame 4 is attached to the wall. Even if it is not necessary, the hole for passing the fixing screw is accurately formed, and the installation work becomes easy.

(Embodiment 2) As shown in FIGS. 4 to 6, the semi-drilled hole 11A provided in the frame 4A is fixed smaller than the large diameter portion through which the head of the fixing screw 15 passes and the head of the fixing screw 15. A small diameter portion is formed by a small diameter portion through which the screw portion of the screw 15 passes, and the small diameter portion is provided so as to be on the upper side of the large diameter portion.

The fitting hole 12A of the reinforcing member 14A is provided.
The frame 4A is also formed so as to be fitted into the half hole 10A formed by the half hole 11A of the frame 4A.

In the above structure, when the frame 4A is mounted on the wall 16, the fixing screw 15 is firstly screwed into a predetermined position of the wall 16 and temporarily fixed, and the hole 4A of the frame 4A is partially cut out. A hole through which the fixing screw 15 passes is formed by punching out the formed half hole 10A, and a fitting hole 12A of the reinforcing member 14A and a half of the frame 4A are formed at the head of the fixing screw 15 temporarily fixed to the wall 16. When the large diameter portion of the hole 11A is inserted and the hand is released to remove the force supporting the frame 4A with the head of the fixing screw 15 protruding above the frame 4A, the frame 4A is fixed. The frame body 4A is temporarily fixed until the small-diameter portion abuts on the screw portion of the fixing screw 1A.
The frame body 4 </ b> A is fixed to the wall part 16 by tightening 5.

As described above, according to the pressurized ventilation fan of the second embodiment, the half-drilled hole 11A through which the fixing screw 15 for fixing the frame 4A to the wall portion 16 is inserted and the insertion hole 1 provided in the reinforcing member 14A.
Since 2A is formed in a ball shape, the fixing screw 1
5, the frame 4A is temporarily fixed by hooking the frame 4A to the fixing screw 15 using the half-drilled hole 11A.
Is fixed, and it is not necessary to fix while supporting the heavy frame 4A, and the frame 4A is easily fixed.

(Embodiment 3) As shown in FIG.
And a fitting hole 12B formed in the reinforcing member 14B are provided above and below a large diameter portion through which the head of the fixing screw (not shown) passes. The small-diameter portion through which the portion passes is formed continuously, and the frame body is formed vertically and horizontally symmetrically.

In the above configuration, when the frame 4B is mounted on the wall, the frame 4B can be fixed by the same operation as in the second embodiment.

As described above, according to the pressurized ventilation fan of the third embodiment, the frame 4B can be temporarily fixed and then fixed, so that the frame 4B can be easily fixed and the frame 4B is vertically and horizontally symmetrical. Therefore, the processing of the frame 4B can be performed at low cost.

[0023]

As is apparent from the above embodiment, according to the present invention, a half hole having a through hole for a leg mounting screw and a half hole formed by punching is formed in the supporting leg mounting portion of the frame. Then, the reinforcing member is provided with a fitting insertion hole to be inserted into the half hole and a through hole for the leg mounting screw, and the supporting leg and the reinforcing member are mounted together on the frame body by the leg mounting screw, so the reinforcing member is provided at an accurate position. Thus, it is possible to provide a pressurized ventilation fan that facilitates installation work.

Further, since the half-hole and the insertion hole of the reinforcing member provided in the frame are formed in the shape of a ball and can be temporarily fixed to the fixing screw temporarily fixed to the wall, the labor for mounting the pressurized ventilation fan is reduced. At the same time, the mounting work becomes easier.

In addition, since the semi-drilled hole provided in the frame body and the insertion hole for the reinforcing member are provided with small diameter portions smaller than the fixing screw head above and below the large diameter portion through which the fixing screw head passes. The frame body is turned upside down to enable temporary fixing, and the frame body is symmetrical, so that processing can be performed at low cost.

[Brief description of the drawings]

FIG. 1 is a front view showing a configuration of a pressurized ventilation fan according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view showing an engaged state of a frame and a reinforcing member of the pressurized ventilation fan according to the first embodiment.

FIG. 3 is a cross-sectional view showing a mounting state of the pressurized ventilation fan according to the first embodiment using leg mounting screws.

FIG. 4 is a front view showing the configuration of a pressurized ventilation fan according to the second embodiment.

FIG. 5 is a cross-sectional view showing an engagement state between a frame of the pressurized ventilation fan and a reinforcing member according to the second embodiment.

FIG. 6 is a partial cross-sectional view showing a state in which the pressurized ventilation fan according to the second embodiment is temporarily fixed.

FIG. 7 is a front view showing the configuration of a pressurized ventilation fan according to the third embodiment.

FIG. 8 is a front view showing a configuration of a conventional pressurized ventilation fan.

FIG. 9 is a cross-sectional view showing an engaged state between the frame of the pressurized ventilation fan and the reinforcing member.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 blade 2 motor 3 wind tunnel 4 frame 4A frame 4B frame 5 support leg 6 leg mounting screw 7 first insertion hole 8 mounting portion 9 second insertion hole 10 semi-drilled hole 11 half-drilled hole 11A half-drilled hole 11B Half hole 12 Insertion hole 12A Insertion hole 12B Insertion hole 13 Third insertion hole 14 Reinforcement member 14A Reinforcement member 14B Reinforcement member 15 Fixing screw

Continuation of the front page (56) References JP-A-2-309143 (JP, A) JP-A-6-207721 (JP, A) JP-A-59-147941 (JP, A) JP-A-58-158242 (JP) , U) Japanese Utility Model Hei 2-67829 (JP, U) Japanese Utility Model Application Showa 59-113194 (JP, U) Japanese Utility Model Utility Model Showa 40-29742 (JP, Y1) (58) Fields surveyed (Int. Cl. ⁷ , DB) Name) F24F 7/013 101

Claims (3)

(57) [Claims] 1. A frame in which a wind tunnel in which blades are arranged is provided in the center, support legs for supporting an electric motor on which the blades are mounted on the frame, and leg mounting screws provided on the frame mounting side of the support legs. A mounting portion having a first insertion hole through which the first mounting hole is inserted, a second insertion hole through which the leg mounting screw is provided in the frame portion corresponding to the mounting portion, and a left and right side of the second insertion hole. the striking vent allows semi escape portion and a semi-cut hole which is protruding formed on the rear side, said half blanking the insertion hole to be interpolated fitted semi missing portion formed in the hole has a horizontal center leg mounting screws A reinforcing member provided with a third insertion hole to be inserted, wherein the reinforcing member positioned by inserting the insertion hole into the half hole formed in the frame is supported by the leg mounting screw via the mounting portion. Together with the frame, and when fixing the frame to the wall,
Punched and fixed to the penetrated half-drilled hole and the insertion hole of the reinforcing member.
A pressurized ventilation fan that is fixed through a fixed screw . 2. A damper formed by a large-diameter portion through which a head of a fixing screw passes through a semi-drilled hole provided in a frame body and a fitting insertion hole formed in a reinforcing member, and a small-diameter portion through which a screw is smaller than the head of the fixing screw and passes through. The small-diameter portion is disposed on the upper side, and is formed in the shape of a circle.
Pressurized ventilation fan as described. 3. A small-diameter portion in which a half-drilled hole provided in the frame body and a fitting insertion hole formed in the reinforcing member are vertically arranged above and below a large-diameter portion through which the head of the fixing screw passes. 2. The frame body is formed to be vertically symmetrical.
Pressurized ventilation fan as described.