JP2002357344A - Mounting structure of louver with fan - Google Patents

Abstract

(57) [Problem] To provide a mounting structure of a louver with a fan, in which the processing of the mounting object is simple and the workability of attaching and detaching is further improved. A louver body (1) is provided with a tubular portion (1b) to be inserted into an opening (5) of a box wall surface (4), and the entire tubular portion is formed into a male screw. The ring-shaped member 3 was fastened to the louver main body 1 via the wall surface 4, the wall surface 4 was sandwiched, and a louver with a fan was attached.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a louver with a fan for forced ventilation, and more particularly to an improvement in its mounting structure.

[0002]

2. Description of the Related Art A conventional louver with a fan has a structure as shown in FIGS. FIG. 6 shows a mounting structure of a louver with a hood, in which a box wall surface 22 to be mounted is sandwiched and mounted between a louver body 21 and a fan 23, and a ventilation opening 25 is formed in the wall surface 22 and a screw 24 is inserted. Holes 26 are formed at the four corners of the opening, and the fan 23 is arranged inside the box, and is screwed in from the inside and mounted.

FIG. 7 shows a configuration in which a wall opening 27 is formed to be larger than the outer dimension of the fan 23 so that the fan 23 can be inserted. The fan 23 is screwed and fixed to a louver main body 28 in advance, and claws 29 provided on the louver main body 28 are provided. Is fixed to the end of the opening 27, and if necessary, holes 30 for inserting screws are formed in the four corners of the opening 27, and the louver main body 28 is fixed by screwing from the inside of the box. It has a structure to do.

[0004]

However, the mounting structure shown in FIG. 6 requires a lot of holes for mounting, which is troublesome.
Since screw tightening work occurs in the box, the workability of attaching and detaching work during installation and fan replacement was poor. In addition, since the mounting structure in FIG.
If the dimensional accuracy of the square hole, which is the opening, is not good, it cannot be locked, and if it is installed in a place where vibration or impact is applied, it may be necessary to tighten the screw. In some cases, and the hole processing was also troublesome. In view of the above problems, it is an object of the present invention to provide a mounting structure of a louver with a fan, in which processing of an object to be mounted is simple, and which has good workability in attaching and detaching.

[0005]

According to a first aspect of the present invention, a louver body is disposed at the front of an opening to be mounted and a fan is disposed at the back of the opening. The louver body has a tubular portion inserted into the opening, and the entire tubular portion is a male screw. On the other hand, a ring-shaped member to be screwed to the male screw is provided on the connection surface of the fan, and the ring-shaped member is fastened to the louver main body, and a louver with a fan is mounted on a mounting object.

According to a second aspect of the present invention, in the first aspect of the present invention, the ring-shaped member comprises a nut body having a female thread and a connection frame for mounting the fan body. It is fitted and rotatable with respect to the nut body.

According to a third aspect of the present invention, in the second aspect of the present invention, a reversing prohibition mechanism is provided between the connection frame and the nut body, the connection frame being rotatable only in the nut body screw-in direction, and prohibiting rotation in the opposite direction. Is provided.

[0008]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a perspective view showing a state in which a louver with a fan according to the present invention is mounted, 1 is a louver main body, 2 is a fan, 3 is a ring-shaped member,
Reference numeral 4 denotes a box wall surface to be attached, wherein the left side in the figure is the front side of the box and the right side is inside the box.

The louver main body 1 has a frame 1a covering the front surface of a rectangular opening 5 formed in the box wall surface 4, and a cylindrical portion 1b formed by extending the wall surface of a ventilation port provided in the center of the frame backward. The cylindrical portion 1b is formed in a substantially quadrangular shape, and thread grooves 6 are formed at four corners thereof, and a male screw is formed in the entire cylindrical portion. An opening 5 is provided on each of the four flat sides of the cylindrical portion 1b.
Locking pawls 7 are formed on each side of the lock.

As shown in FIG. 2, the ring-shaped member 3 is composed of a nut member 9 and a connecting frame 10 which is fitted to the nut member 9 so as to be fitted externally, that is, to accommodate the nut member 9. The nut body 9 has a thread groove 11 formed on an inner surface thereof, and constitutes a female screw which engages with a male screw formed by the cylindrical portion 1b of the louver main body 1. Further, as shown in the enlarged view A, a saw blade-shaped knurled portion 12 is formed all around the rear side adjacent to the female screw groove 11. The knurled portion 12 is formed with a step 12a at the end in the screwing direction, and a gentle slope is formed between adjacent steps. The whole is formed by resin molding.

The connection frame 10 has four screw holes 14 for screwing the fan 2 at four locations on the rear surface.
A plurality of tongue pieces 15 are provided to protrude forward with a predetermined gap (a gap slightly smaller than the thickness of the nut body 9) provided between the inner surface 10a and the inner surface 10a. And the whole except the screw hole formation part is formed by resin molding, and the screw hole formation part is formed by embedding a metal piece. The pitch of the tongue piece 15 is the knurled part 1.
2 is formed in accordance with the pitch.

The nut body 9 and the connecting frame 1 thus formed are
To explain the assembling and operation of the nut 0, the nut body 9 is housed in the connecting frame 10 and the two are joined. At this time, as shown in the enlarged explanatory view of the main part of FIG. Is inserted between the inner surface 10a and the tongue piece 15 to be integrated.
Therefore, the knurled portion 12 and the tongue piece 15 form a reversal prohibition mechanism, and the connection frame 10 is rotated rightward in the screwing direction with respect to the nut body 9, that is, the connection frame 10 is rotated without screwing operation. Even if it can be done, the rotation in the opposite direction is
The tongue piece 15 is locked to 2a and rotation is prevented.

Then, the fan 2 is screwed and assembled to the ring-shaped member 3 in which the nut body 9 and the connection frame 10 are joined, and is screwed to the cylindrical portion 1b of the louver main body 1 via the box wall surface. As shown in FIG. 4, the louver with a fan is assembled, and is mounted on an object to be mounted while sandwiching a wall surface.
FIG. 4 is a perspective view showing a state in which the louver body 1 and the fan 2 are connected to each other to assemble a louver with a fan. Although it is possible to rotate clockwise as shown by, it is formed so that it cannot rotate in the opposite direction.

As described above, since a separate screw is not used for mounting on the mounting object, the mounting operation is easy,
Even when replacing the fan, after removing the ring member connected to the fan from the louver main body, it is only necessary to remove the fan from the ring member at an easy place to work, and it is not necessary to remove the screw in the box, Maintenance workability is improved. In addition, since it is a mounting structure that clamps the mounting target, it can be securely fixed without using screws regardless of the environment such as the dimensional accuracy of the opening and the presence or absence of vibration at the mounting location,
At the time of fixing, it can be easily fixed without using a tool, and since there is no need to form a screw insertion hole, processing is easy.

Further, if the tightening force at the time of mounting is too strong, the connecting frame slides and rotates around the nut body, so that the tightening force does not exceed a specific amount and the ring-shaped member is used when replacing the fan. There is no danger that the ring cannot be removed or the ring body is damaged due to overtightening, and the coupling frame can be easily removed without being idled only when it is removed by the inversion inhibiting mechanism. In addition, the connecting frame can be rotated even when the louver with fan is installed, so that the fan can be rotated. Even if the fan is installed at an inclined angle, the fan can be rotated to adjust the angle and position the fan at a predetermined angle. it can.

FIG. 5 shows another embodiment of the present invention. Explaining the differences from the above embodiment, the cylindrical portion 18 of the louver main body 17 is formed in a cylindrical shape without a locking claw, and the opening 19 of the corresponding box wall is also formed in a circular shape. As described above, since the louver with a fan of the present invention has a structure in which the mounting object is clamped and fastened by fastening the fan to the louver main body, there is no need to provide a locking claw for locking the opening. Further, the cylindrical portion and the opening to be inserted into the opening may be formed in such a circular shape.

[0017]

As described above in detail, according to the first aspect of the present invention, since no separate screw is used for mounting on the mounting object, the mounting operation is easy, and the box can be replaced even when replacing the fan. After removing the ring member connected to the fan from the louver body without the need to remove the screws inside,
It is only necessary to remove the fan from the ring member at a place where it is easy to work, and the workability of maintenance is improved. In addition, since it is a mounting structure that clamps the mounting target, it can be securely fixed without using screws regardless of the environment such as the dimensional accuracy of the opening and the presence or absence of vibration at the mounting place, and tools are required for fixing do not do. Furthermore, since it is not necessary to form a screw insertion hole, processing is easy.

According to the second aspect of the invention, in addition to the effect of the first aspect, the fan can be rotated with the louver with the fan attached, so that the fan is tightened at an inclined angle. Can be rotated to adjust the angle, and the fan can be positioned at a predetermined angle.

According to the third aspect of the invention, in addition to the effect of the second aspect, if the tightening force is too strong, the connecting frame slides and rotates around the nut body so that the tightening force becomes a specific amount or more. Therefore, there is no fear that the ring body cannot be removed at the time of replacement of the fan or the ring body is damaged due to excessive tightening.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of an embodiment of the present invention, in which a louver with a fan is attached.

FIG. 2 is an exploded perspective view of the ring member of FIG. 1 and a partially enlarged view thereof.

FIG. 3 is an explanatory diagram showing an engagement state between a tooth portion and a tongue piece.

FIG. 4 is a perspective view showing a state where the louver main body and the fan are connected.

FIG. 5 is a perspective view showing another embodiment of the present invention.

FIG. 6 is a perspective view showing how a conventional louver with a fan is attached.

FIG. 7 is a perspective view showing how a conventional louver with a fan is attached.

[Explanation of symbols]

1. Louver body, 1a, frame, 1b, cylinder, 2.
・ Fan, 3 ring-shaped members, 4 ・ ・ Box wall (to be mounted), 5 ・ ・ Opening, 6 ・ ・ Screw groove, 9 ・ ・ Nut body, 10 ・ ・ Connection frame, 11 ・ ・ Screw groove, 12 ・・ Gear part, 15 ・ ・ Tongue piece, 17 louver body, 18 ・ ・ Cylinder part, 1
9. Opening.

Claims (3)

[Claims] 1. A louver with a fan, wherein a louver main body is arranged in front of an opening to be mounted and a fan is arranged at the back of the opening, and the two are connected via the mounting object to pinch and fix the mounting object. The louver main body has a tubular portion inserted into the opening, and the entire tubular portion is formed into a male screw, while a ring-shaped member screwed to the connecting surface of the fan with the male screw. Wherein the ring-shaped member is fastened to the louver main body, and the louver with a fan is mounted on an object to be mounted. 2. The ring-shaped member includes a nut body having a female screw formed therein and a connection frame for mounting the fan body, and the connection frame is fitted around the nut body and is rotatable with respect to the nut body. A mounting structure for a louver with a fan according to claim 1. 3. The louver with a fan according to claim 2, further comprising a reversing prohibition mechanism between the connection frame and the nut body, the rotation frame being rotatable only in the nut body screw-in direction, and the rotation in the opposite direction being prohibited. Mounting structure.