JP2652625B2 - Bracket and mounting structure for ventilation fan cover - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation fan cover mounting device and a mounting structure, and more particularly to a ventilation fan cover mounting device and a mounting structure for mounting a removable ventilation fan cover on a ventilation fan frame.

[0002]

2. Description of the Related Art FIGS. 7 and 8 show the structure of a fixture for a ventilation fan cover disclosed in Japanese Utility Model Publication No. 2-5292 and the attached state of the fixture. Referring to FIG. 7, the attachment of the ventilation fan cover includes a thin plate piece 52 provided with a bent hook portion 51 having an acute angle at a tip end thereof, and a coil spring 53 wound at a fine pitch. A coil spring 53 is attached to the rear end of the thin plate piece 52.
Of the coil spring 53
Of the coil spring 53 is extended to the side surface of the coil portion of the coil spring 53. The free end 56 of the coil spring 53 is in elastic contact with the end of the coil.

[0003] As shown in FIG. 8, the free end 56 of the other end 55 of the coil spring 53 is inserted into the peripheral end of the flange 30 of the ventilation fan cover 27 and is engaged in advance. . The other end 55 of the coil spring 53
Since the free end 56 extends to the side surface of the coil portion of the coil spring 53 and resiliently contacts the side surface, the ventilation fan cover mounting member 41 does not come off from the flange portion 30 unnecessarily. That is, since it can be handled in a state in which the ventilation fan cover attachment 41 is attached to the flange portion 30, it is possible to omit the trouble of putting only the ventilation fan cover attachment 41 in another bag to make a product. In addition, when the fan is attached to the ventilation fan, the ventilation fan cover 27 is attached to the ventilation fan frame 25 of the ventilation fan 59.
After that, the bent hook portion 51 of the ventilation fan cover mounting member 41 can be easily attached only by hooking the bent hook portion 51 on the joint portion between the main body frame 37 of the ventilation fan 59 and the ventilation fan frame 25. Removal work can also be easily performed.

[0004]

In the above-mentioned conventional fittings for the ventilation fan cover, since the length of the coil spring is constant, the width and thickness ("D" dimension in FIG. 8) of the ventilation fan frame are different. Sometimes the spring tension is too strong,
Or, it is too weak and the range that can be used properly is narrowed.

In addition, the gap ("S" dimension in FIG. 8) between the main body of the ventilation fan and the wall to be attached is actually 1-2 mm.
The replacement work was troublesome for housewives, because there were many narrow ones and the position of the ventilation fan was high. Furthermore, since the right and left fittings are attached to the flange portion of the ventilation fan cover body in advance, every time the ventilation fan cover is attached, this fitting must be discarded, which is uneconomical.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and the invention according to claim 1 facilitates the installation of the ventilation fan cover, and it is necessary to replace the ventilation fan cover at the time of replacement. The aim is to provide no ventilation fan cover fittings. Further, the invention according to claim 2 provides an installation structure of a ventilation fan cover that allows easy installation of the ventilation fan cover and that can attach the ventilation fan cover with a desired pressing force irrespective of the shape and dimensions of the ventilation fan frame. With the goal.

[0007]

In order to achieve the above object, an invention according to claim 1 is a mounting device for a ventilation fan cover for mounting the ventilation fan cover to a ventilation fan frame, wherein the mounting member has a U-shaped cross section or a cross section. A clip that is formed in a U-shape and can be fixed to the ventilation fan frame by sandwiching the flat plate portion of the ventilation fan frame with elastic force, and a coil spring whose one end is connected to a part of the surface of the clip, A hook provided at the other end of the coil spring and having a shape that can be locked to a part of the ventilation fan cover.

According to a second aspect of the present invention, there is provided a ventilation fan frame having a pair of attachments mounted on opposite side walls of the ventilation fan frame so as to extend from one end to the other end of the ventilation fan frame. A ventilation fan cover mounting structure in which a ventilation fan cover is attached to the other end while pressing the flange thereof, wherein each of the mounting tools is detachably mounted to one end of the ventilation fan frame, and a mounting piece. A member having one end connected thereto and having a different tensile force depending on the degree of expansion and contraction, and a locking portion attached to the other end of the member. A plurality of engaging portions are provided at positions where the degree of expansion and contraction of the member is different for each of the fixtures.

[0009]

As described above, according to the first aspect of the present invention, since the clip which can clamp the flat plate portion of the ventilation fan frame by elastic force and fix it to the ventilation fan frame is provided, the ventilation fan frame is once provided. If the clip is attached to the fan, there is no need to remove the fixture every time the ventilation fan cover is replaced. And, the installation or removal of the ventilation fan cover is very easy because it is performed on the ventilation fan cover side by using the hook.

[0010] In the invention according to claim 2, since a plurality of engaging portions are provided on the flange portion of the ventilation fan cover at positions where the degree of expansion and contraction of the members is different, the shape, dimensions, etc. of the ventilation fan frame are provided. It is sufficient to select an appropriate engaging portion according to.
This allows the ventilation fan cover to be easily attached with a desired pressing force.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a view showing the structure of a fixture for a ventilation fan cover according to a first embodiment of the present invention, and FIG. 2 is a view taken along the line II-II in FIG. is there.
With reference to these drawings, the structure of the fixture for the ventilation fan cover will be described. The ventilation fan cover attachment 41 according to this embodiment includes three members including a clip 11, a spring member 14 connected to the clip 11, and an attachment member 20 connected to the spring member 14. The clip 11 includes a thin plate piece 12 formed by bending a rectangular plate-shaped tin plate into a U-shaped cross section, and a thin plate piece 1.
2 and a locking piece 13 formed by raising a member inside the notch 16 formed on one side. Here, the gap L facing the end of the thin plate piece 12 is 0.5 m
m, which is a size corresponding to a thickness of 0.8 to 1.5 mm of a ventilation fan frame (described later) to which the thin plate piece 12 is attached. The radius R of the bent portion of the thin plate piece 12 is about 1.5 mm.

On the other hand, the spring member 14 has a coil spring 17 made of spring steel as a center, and one end of the spring member 14 is connected as a hook portion 15 to the locking piece 13 of the clip 11 so as not to come off. Further, the other end of the coil spring 17 forms a ring portion 19. The attachment member 20 has a hook portion 23 which can be locked to the flange portion of the ventilation fan cover, and a ring portion 21 which is engaged with the ring portion 19 of the spring member 14 so as not to come off and be pinched by a finger. It is composed of Since the attachment member 20 is intended to engage with the ventilation fan cover, the attachment member 20 has a higher hardness and a larger thickness than the steel material forming the spring member 14.

FIG. 3 is a perspective view showing a state where the ventilation fan cover is attached to the ventilation fan frame using the fixtures shown in FIGS. 1 and 2, and FIG. 4 is an end view of the IV-IV line in FIG. It is. With reference to these drawings, the state of attachment of the ventilation fan cover according to the first embodiment of the present invention with the fixture will be described.

The ventilating fan frame 25 is mounted on the main frame 37 mounted on the wall 39 so that its ends are overlapped with each other, and is detachable from the main frame 37. Therefore, when attaching the ventilation fan cover mounting member 41, first, the ventilation fan frame 25 is removed from the main body frame 37. Then, a pair of thin plate pieces 12 is attached so as to sandwich the opposite side wall end of the removed ventilation fan frame 25. As described above, the gap L at the end of the thin plate piece 12 is slightly smaller than the thickness of the side wall of the ventilation fan frame 25. However, the end can be easily formed by bending it into a U-shaped cross section. After the opening, the thin plate piece 12 acts to pinch the side wall 26 of the ventilation fan frame 25 with a predetermined force, so that the stable mounting of the thin plate piece 12 can be realized. Therefore, the thin plate piece 12 and thus the fixture 4
There is no danger that 1 will slip down below the ventilation fan frame 25.

It is also conceivable to use a mere plate material instead of the thin plate piece 12 and fix the fixture to the side wall 26 of the ventilation fan frame 25 using, for example, a double-sided adhesive tape. It is not preferable because it has problems such as a problem and a stain due to a residual adhesive after peeling. With the thin piece 12 attached in this manner, the ventilation fan frame 25 is
Attach to 7. That is, in this state, a pair of ventilation fan cover mounting members 41 are mounted on both sides of the opposed side wall of the ventilation fan frame 25. Therefore, the attachment 41 can be easily attached even at a high place.

In this state, a filter 29 is provided at the center.
A ventilation fan cover 27 made of an aluminum foil or plastic molded body to which is attached is set. That is, the flange portion 30 of the ventilation fan cover 27 is installed so as to press the upper surface 28 of the ventilation fan frame 25. The flange portion 30 of the ventilation fan cover 27 is formed with raised portions 33 on both sides facing each other, and each of the raised portions 33 is provided with a ventilation fan cover fitting 4.
Slots 35a, 35 so that one hook 23 can be locked
b is formed.

When the ventilation fan cover 27 is mounted on the ventilation fan frame 25, the ring portion 21 of the ventilation fan cover mounting member 41 is pinched by a finger, and the hook portion 23 is formed in the elongated hole 35a formed in the raised portion 33 of the ventilation fan cover 27. , 35b. That is, when the hook portion 23 of the ventilation fan cover attachment 41 is engaged with the ventilation fan cover 27, the elongated holes 35 a and 35 b are so arranged that an appropriate tensile force acts on the hook portion 23 depending on the degree of extension of the coil spring 17. May be selected. By doing in this way, even if the width of the side wall 26 of the ventilation fan frame 25 is different, or the size of the upper surface 28 of the ventilation fan frame 25,
Even if the flange portion 30 of the ventilation fan cover 27 is not tight, by selecting the engagement portion between the hook portion 23 of the ventilation fan cover attachment 41 and the elongated holes 35a and 35b formed in the raised portion 33, With an appropriate pressing force of the ventilation fan cover 27 on the upper surface 28 of the ventilation fan frame 25,
A ventilation fan cover 27 can be attached.

When the ventilation fan is used, the filter 29 of the ventilation fan cover 27 becomes dirty, and when the ventilation fan cover 27 is replaced, the hook portion 23 of the ventilation fan cover fitting 41 is inserted into the oblong hole 3.
The ventilator fan cover 27 can be easily replaced simply by releasing the engagement from one of 5a and 35b. That is, the removal and attachment of the ventilation fan cover 27
, That is, on the front surface of the ventilation fan frame 25, the handling becomes extremely easy. Further, since the ventilation fan cover attachment 41 remains attached to the side wall 26 of the ventilation fan frame 25 even after the replacement of the ventilation fan cover 27, there is no need to discard the ventilation fan cover attachment 41, which is economically advantageous. Become.

FIG. 5 is a view showing the structure of a fixture for a ventilation fan cover according to a second embodiment of the present invention. In this embodiment, mounting pieces 43a and 43b having different lengths of the coil springs 17a and 17b are mounted on the locking piece 13 of one clip 11. By configuring the fitting in this way, even if the ventilation hole cover has only one engaging hole with respect to the fitting, it is possible to select the tensile force at the time of engagement. That is, clip 1
In the case where the length of the position of the mounting hole of the ventilation fan cover from the mounting position of No. 1 is short, the hook portion 23a of the mounting piece 43a
When the length from the mounting position of the clip 11 to the mounting hole of the ventilation fan cover is long, the ventilation fan cover 27 may be mounted using the hook 23b of the mounting piece 43b. Thereby, the number of engagement holes formed in the ventilation fan cover can be reduced.

FIG. 6 is a view showing a structure of a ventilation fan cover mounting device according to a third embodiment of the present invention. In the attachment according to this embodiment, the shape of the attachment piece 43 composed of the spring member 14 and the attachment member 20 is the same as that of the ventilation fan cover attachment 41 according to the first embodiment shown in FIG. is there. However, in this embodiment,
There are provided two locking pieces for connecting the hook portion 15 of the spring member 14 to the thin plate piece 12 of the clip 11. That is, by locking the hook portion 15 of the spring member 14 to either the locking piece 13a or the locking piece 13b, the position where the clip 11 is attached and the position of the engagement hole where the hook portion 23 is locked. Even if the distance from the fan frame differs depending on the shape of the ventilation fan frame, the tension of the spring member 14 can be adjusted, and the ventilation fan cover 27 can be attached to the ventilation fan frame 25 with a predetermined pressing force. Thus, also in this embodiment, the number of engagement holes formed in the flange portion of the ventilation fan cover can be reduced.

In the above embodiment, since the tin plate is used for the clip 11 of the ventilation fan cover mounting member 41 from an economic viewpoint, the clip 11 has a U-shaped cross section to prevent metal fatigue. Therefore, clip the spring steel 1
When the clip 11 is used, the clip 11 may have a U-shaped cross section. Further, in the above embodiment, the coil spring 17 is used for the ventilation fan cover fixture 41. However, if the tension force varies depending on the degree of expansion and contraction, for example, a leaf spring formed into a corrugated shape, , Other members may be used.

Further, in the above embodiment, the spring member 14 and the mounting member 20 of the ventilation fan cover mounting member 41 are separate parts, but the hardness of the tip member of the spring member 14 is changed by, for example, heat treatment.
This can be used directly as a hook portion, and the attachment member 20 can be dispensed with.

[Brief description of the drawings]

FIG. 1 is a diagram showing a structure of a fixture for a ventilation fan cover according to a first embodiment of the present invention.

FIG. 2 is a diagram of a II-II line in FIG. 1;

FIG. 3 is a perspective view showing a state where the ventilation fan cover is mounted on the ventilation fan frame using the ventilation fan cover mounting tool of FIG. 1;

FIG. 4 is an end view of the IV-IV line in FIG. 3;

FIG. 5 is a view showing a structure of a fixture for a ventilation fan cover according to a second embodiment of the present invention.

FIG. 6 is a view showing a structure of a fixture for a ventilation fan cover according to a third embodiment of the present invention.

FIG. 7 is a perspective view showing a structure of a conventional attachment for a ventilation fan cover.

FIG. 8 is a cross-sectional view showing a state where a ventilation fan cover is mounted on a ventilation fan frame using the mounting tool of FIG. 7;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Clip 12 Thin plate piece 14 Spring member 17 Coil spring 20 Attachment member 23 Hook part 25 Ventilation fan frame 27 Ventilation fan cover 30 Flange part 31 Engagement part 35a, 35b Long hole 41 Ventilation fan cover mounting tool The same code in each figure is the same or the same. The corresponding parts are shown.

Continuation of the front page (56) References JP-A-59-4936 (JP, U) JP-A 60-135548 (JP, U) JP-A 3-111837 (JP, U) JP-A 6-59734 (JP) , U) Japanese Utility Model 2-77529 (JP, U) Japanese Utility Model 3-115337 (JP, U) Japanese Utility Model 4-106441 (JP, U) Japanese Utility Model 3-72239 (JP, U) Japanese Utility Model 1-63944 (JP, U) Japanese Utility Model 1983-174627 (JP, U) Registered utility model 3008367 (JP, U)

Claims (2)

(57) [Claims] An attachment for a ventilation fan cover for attaching a ventilation fan cover to a ventilation fan frame, the ventilation fan cover being formed in a U-shaped cross section or a U-shaped cross section so as to sandwich a flat plate portion of the ventilation fan frame by elastic force. And a coil spring having one end connected to a part of the surface of the clip; and a coil spring attached to the other end of the coil spring and connected to a part of the ventilation fan cover. And a hook having a shape that can be stopped. 2. A pair of fixtures are mounted on opposite side walls of a cylindrical ventilation fan frame so as to extend from one end to the other end of the ventilation fan frame, and a flange is provided on the other end of the ventilation fan frame. A mounting structure of a ventilation fan cover for mounting a ventilation fan cover in a state where a part is pressed, wherein each of the mounting tools is a mounting piece detachably attached to one end of the ventilation fan frame, and one end of the mounting piece is attached to the mounting piece. A member that is connected and expandable and has a different tensile force depending on the degree of expansion and contraction; and a locking portion attached to the other end of the member. A ventilating fan cover mounting structure, wherein a plurality of engageable engaging portions are provided at positions where the degree of expansion and contraction of the member is different with respect to each of the mounting tools.