JPH089480A - Mounting device for ceiling speaker - Google Patents

Abstract

PURPOSE:To bring the panel into close contact with the ceiling by using a plastic deformation spring. CONSTITUTION:A speaker 34 is provided corresponding to a ceiling hole 24 at the upper place than the ceiling hole which is provided on a ceiling 22. An engagement hole 42 is formed on a base part 28 placed higher than the ceiling 22 and closed to it. A sphere projection part 44 provided on one end is engaged with the engagement hole 42. The other end of a spring 40 pulled out through the ceiling 22 is attached to the panel 48 at the lower part of the ceiling hole 24. With the power of the spring 40, the panel 48 is brought into close contact with the ceiling 22. When the spring 40 is plastically deformed, the spring 40 is pulled and a sphere projection part 44 is engaged with a spring engagement part 54 which is separated from the engagement hole 42 on the base part 28. By recovering the power of the spring 40, the panel 48 is brought into close contact with the ceiling 22.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for mounting a speaker in a ceiling hole provided in a ceiling, and more particularly to a panel mounting structure for covering the ceiling hole.

[0002]

2. Description of the Related Art Conventionally, as a device for mounting a speaker on a ceiling, for example, as shown in FIG. 7, a ceiling box 4 is provided in a ceiling 2 and a speaker box is provided in the ceiling 2 so as to correspond to the ceiling hole 4. 6, the speaker 10 is provided on the panel 8 covering the ceiling hole 4, the ends of the springs 12 and 12 are coupled to the upper wall of the speaker box 6, and the springs 12 and 12 are pulled to form the ceiling hole 4 There is a method in which the ceiling 8 is covered with the panel 8 by pulling it out from the panel 8 and connecting the other end to the panel 8 and compressing the springs 12 and 12 so as to return to the original lengths as shown by arrows. .

Further, as shown in FIG. 8, a pedestal 14 is provided in the ceiling 2 so as to cover the ceiling hole 4, and the pedestal 14 is located on the back surface side of an opening 16 formed so as to correspond to the ceiling hole 4. The speaker 10 is provided as described above, and both ends of the spring 18 provided on the back surface side of the pedestal 14 are extended, pulled and pulled out from the ceiling hole 4 and coupled to the panel 8, respectively, and the spring 16 returns to its original position as indicated by an arrow. There is also one in which the ceiling hole 4 is covered on the panel 8 by compressing the panel 8 so as to return to the length.

[0004]

However, in any of the structures shown in FIGS. 7 and 8, the panel 8 is made by utilizing the restoring force of the spring 12, 12 or 16 from the state in which the spring 12, 12 or 16 is pulled. Is attached to the ceiling hole 4. Therefore, the springs 12, 12 or 16 are pulled, but at that time, the springs 12, 12 or 16 are likely to be plastically deformed, the panel 8 and the ceiling 2 do not come into close contact with each other, and when the loudspeaker 10 expands the sound, There were cases where chattering and appearance defects occurred. When such a phenomenon occurs, the spring 12, 12 or 16 is replaced only, and there is no good countermeasure.

It is an object of the present invention to make the panel adhere to the ceiling by utilizing the plastically deformed spring even if the spring is plastically deformed.

[0006]

In order to achieve the above object, the first invention is a speaker provided above a ceiling hole formed in a ceiling and corresponding to the ceiling hole. A panel that covers the ceiling hole from the lower surface side thereof, a first locking portion provided above the ceiling hole, and an engaging portion that is detachable from the first locking portion are provided at one end. A spring that is coupled to the panel through the ceiling hole and pulls the panel toward the ceiling hole, and a first engaging portion that is provided above the ceiling hole and separated from the first engaging portion, and the engaging portion is removable. And two locking portions.

A second aspect of the present invention is the same as the first aspect of the present invention, in which the base portion provided above the ceiling is provided with the first and second locking portions. Further, in the third aspect of the present invention, the base is provided near the ceiling.

[0008]

According to the first aspect of the present invention, the spring for covering the ceiling hole in the panel normally has its engaging portion locked to the first locking portion, but the spring is plastically deformed and stretched. If the spring is pulled, the spring is pulled and the second
It is locked to the locking part of. By pulling the spring,
The spring regains the spring force and allows the panel to adhere to the ceiling.

According to the second aspect of the invention, since the first and second locking portions as described above are formed on the base portion provided in the ceiling, it is necessary to form these locking portions one by one on the ceiling. Since there is no need to arrange the base in the ceiling, it is possible to easily mount the panel.

Further, according to the third invention, since the above-mentioned base is formed in the vicinity of the ceiling, when the engaging portions are engaged with the first and second engaging portions, the ceiling is singly provided. Since it is not necessary to put your hands in the back of the machine, the installation work becomes easier.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment is shown in FIGS. As shown in FIG. 1, in this embodiment, a ceiling hole 24 is formed in the ceiling 22, and the ceiling hole 24 is, for example, circular or rectangular. Inside the ceiling 22, a pedestal 26 has a ceiling hole 2
It is arranged so as to cover 4. This pedestal 26 is relatively close to the ceiling 22 but is spaced apart,
For example, it has a rectangular base portion 28. A peripheral wall 30 that supports the base 28 is formed around the base 28 and is in contact with the ceiling 22. The pedestal 26 is placed above the ceiling 22 from the ceiling hole 24, for example.

A circular opening 32 is formed at a position corresponding to the central ceiling hole 24 of the base portion 28. A speaker 34 is provided on the rear surface side of the base 28 so that the speaker 32 can raise the sound.
Is attached.

The base portion 28 is provided with two folding members 36, 36 integrally with the base portion 28. These folding tools 3
6 and 36 are arranged outside the speaker 34 (left and right direction of the speaker 34 in FIG. 1), and
Are located at the center of the front-back direction (front-back direction in FIG. 1). These folding tools 36, 36 extend upward from the base portion 28, and the tip end portion thereof has the speaker 3
4 extends further upward than the upper part of 4, and is further inverted outward at the tip end thereof, that is, the opposite side of the speaker 34, while being gently curved and returned to the base 28.
It has a letter shape. A groove 38 is formed in the center of the folding member 36 in the front-rear direction, as shown in a partially enlarged view in FIG.

Grooves 38, 3 of the folding tools 36, 36
8 along these grooves 38, 38 respectively.
0 and 40 are arranged. This folding tool 36, 36
Since the tip of the spring is bent, the springs 40, 40
The wrapping of the spring is also done gently, and the springs 40, 40
Does not get stuck in something that prevents it from moving smoothly.

These springs 40, 40 are in a normal state, that is, in a state in which they are not pulled, and the groove 3 of the folding member 36.
8 has a length slightly longer than that of the springs 40, 40, and one end of each of the springs 40, 40 has a hole 42 formed in the base 28.
The spherical projection 44, which is an engaging portion, is attached to the tip end of the spherical projection 44. As shown in FIG.
The diameter d2 of the spherical protrusion 44 is larger than the diameter d1 of the hole 42. Therefore, even if the springs 40, 40 are pulled, the spherical protrusion 44 does not pass through the hole 42,
It functions as a first locking portion and blocks movement of the springs 40, 40.

The other ends of the springs 40, 40, that is, the ends on the side closer to the speaker 34, pass through the holes 46, 46 formed in the base 28, the ceiling holes 24, and the ceiling 22. It is pulled out downward and is connected to the panel 48.

That is, the panel 48 is formed in such a size that the ceiling hole 24 can be covered, and the projections 50, 50 are formed at the center portions of the both ends in the front-rear direction. The spring 4 is inserted into the engaging holes 52, 52 formed in the spring 50.
The other ends of 0 and 40 are engaged. Since the springs 40, 40 are thus pulled and pulled out from the ceiling hole 24, when the springs 40, 40 are restored to their original state, the panel 48 is pulled up and the panel 48 covers the ceiling hole 24.

In this way, the panel 48 is attached to the ceiling hole 24.
The springs 40, 40 cover the folding member 38.
Since it is folded back by, the total length in the normal state can be made longer than in the case where a spring is coupled to the upper wall of the speaker box 6 as shown in FIG. 7, for example. Therefore, in order to cover the ceiling hole 24 with the panel 48, the other ends of the springs 40, 40 are connected to the protrusions 50 of the panel 48.
Even if the springs 40, 40 are pulled so as to engage with the engagement holes 52 of the spring 50, the springs 40, 40 are less likely to be plastically deformed.

When the ceiling hole 24 is actually covered with the panel 48, the springs 40, 40 are fed into the ceiling 22 from the holes 42, 42, and are folded back along the grooves 38, 38 of the folding tools 36, 36 to form the holes. Pull out from 46,46. In this case, since the grooves 38, 38 are formed, the springs 40, 4
It is easy to fold back and pull out 0. Holes 46, 4
The springs 40, 40 pulled out from 6 are pulled into a tensioned state, and the engagement holes 5 of the protrusions 50, 50 of the panel 48 are pulled.
Engage with 2, 52. In this state, when the tension of the springs 40, 40 is released, the restoring force of the springs 40, 40 raises the panel 48, and the panel 48 covers the ceiling hole 24.

Even in the above-mentioned manner, the springs 40, 40 may be plastically deformed to be in a so-called stretched state. In such a case, if the springs 40, 40 are replaced one by one, the mounting efficiency of the panel 48 becomes poor. Therefore, in order to deal with such a case, spring locking portions 54, 54, which are second locking portions, are provided on the lower surface of the base portion 28 so as to be positioned further outward than the hole 42. .

As shown in the enlarged view of FIG. 4, these spring locking portions 54, 54 are both from the lower surface of the base portion 28 to the peripheral wall 3.
It is composed of two plate-shaped members 56, 56 provided so as to face the 0 side. The distance d3 between the plate-shaped members 56, 56 is set smaller than the diameter d2 of the spherical protrusion 44. Also,
The spring locking portions 54, 54 are provided close to the peripheral wall 30.

When both or one of the springs 40, 40 is plastically deformed, as shown in FIG. 5, the spherical projection 44 is pulled toward the plate-like members 56, 56 as shown by the arrow, and the spherical projection 44 is pulled. The plate members 56, 56 are locked to each other. As a result, even if the spring 40 is plastically deformed, the panel 4
The parts of the springs 40, 40 on the 8 side can be extended and the spring force can be restored. Therefore, it is possible to save the trouble of replacing the spring 40 one by one.

In particular, the locking hole 42 and the spring locking portion 54 are
Since they are provided on the same base portion 28, their height positions are almost the same. Therefore, the springs 40, 40 are
Since it is bent along 8, the top of the folding tool 36, the locking hole 46, and the spring locking portion 42 are extended along the two sides having the apexes thereof, so that, for example, from the top of the folding tool 36. As compared with the case where the spring 40 is directly extended, the extended distance of the spring 40 is longer, and the spring force can be easily recovered. Further, since the spring locking portion 56 is provided close to the peripheral wall 30, the extension distance can be increased also from this point.

Further, since the locking hole 42 and the spring locking portion 54 are formed in advance at the base of the pedestal 26 which is inserted into the ceiling 22 from the ceiling hole 24, the locking hole 42, It is not necessary to provide an equivalent to the spring locking portion 54. Therefore, the mounting work becomes easy. Further, the base portion 28 provided with the locking hole 42 and the spring locking portion 54.
Are arranged close to the ceiling hole 24, the spring 4
It is not necessary to put the hands deep in the ceiling when attaching the 0 and 40 locking holes 42 and the spring locking portion 54, which facilitates the mounting work.

FIG. 6 shows a second embodiment. In this embodiment, a speaker box 58 is provided so as to cover the ceiling hole 24, and the speaker 34 is arranged on the panel 48. This speaker box 58 also has a ceiling hole 2
It is placed above the ceiling 22 from No. 4.

In this embodiment, the folding tools 60, 60 provided in the first embodiment are not provided. Instead, plate-shaped bases 60, 60 are provided in the vicinity of the upper wall of the speaker box 58 in parallel with the upper wall. Similar to the first embodiment, these base portions 60, 60 are provided with locking holes 42, 42 that are first locking portions, and the springs 40, 40 are passed through these, so that the base portion 60 It projects to the upper side, and a spherical projection 44, which is an engaging part, is provided at the projecting end as in the first embodiment.

Further, the locking holes 4 are formed in the base portions 60, 60.
Spring engaging portions 62, 62 which are second engaging portions are provided at inner inner end portions of the base portions 60, 60 which are located away from the second and second portions 42, 42, respectively.
Each is provided. These spring locking portions 62, 62
Is a plate-shaped body provided on the upper surfaces of the base portions 60, 60 perpendicularly thereto, and these are provided with grooves 64, 64 whose upper side is open. Although not shown, the widths of the grooves 64, 64 are set so that the springs 40, 40 can pass therethrough and are smaller than the diameter of the spherical projection 44.

Also in this embodiment, when both or one of the springs 40 is stretched and plastically deformed, the spherical protrusion 44 of the plastically deformed spring 40 is disengaged from the locking hole 42, and the spring locking portion 62 side. To the spring locking portion 62. This causes the plastically deformed panel 48 of the spring 40.
The part on the side can be stretched and its spring force can be restored. Therefore, it is possible to save the labor of replacing the springs 40 one by one as in the first embodiment. Further, since the locking hole 42 and the spring locking portion 62 are formed in advance in the base portion 60 of the speaker box 58 which is inserted from the ceiling hole 24 into the ceiling 22, the locking hole 42,
Since it is not necessary to provide a part corresponding to the spring locking portion 62, the mounting work becomes easy.

Although two springs 40 are provided in both of the above embodiments, the number can be arbitrarily increased. Also,
In both of the above embodiments, for the two springs 40, 40,
Although the folding tools 36, 36 are provided respectively, the folding tool 36 may be provided only on one of the springs. In this case, the spring without the folding tool 36 needs to have a normal length. In addition, in the first embodiment, the folding tool 36 has an inverted U-shape with a curved tip, but a shape having a leg portion at right angles to both ends of the horizontal portion is used. You can also

Further, configurations other than the spring locking portions 54 and 62 shown in the first and second embodiments can also be used as the spring locking portions. For example, in one plate,
It is also possible to use a groove provided with a groove extending from one of the side edges toward the center. Also, as the first locking portion, the first
Also, in the second embodiment, the locking hole 42 provided in the base portion is used, but instead of this, one having the same structure as the spring locking portion 54 or 62 may be used as the first locking portion. it can.

[0031]

As described above, according to the first aspect of the invention, when the spring is plastically deformed and stretched, the spring is pulled so that it is located at a position away from the first engaging portion. Since it is locked to the locking portion of No. 2, the spring can regain the spring force by pulling the spring, and the panel can be brought into close contact with the ceiling. Therefore, it is not necessary to replace the plastically deformed springs one by one, and the panel mounting operation can be facilitated.

According to the second aspect of the invention, since the first and second locking portions as described above are formed on the base portion provided in the ceiling, when the base portion is arranged in the ceiling. The first and second locking portions can be naturally arranged, and it is not necessary to form the first and second locking portions on the ceiling one by one, and the panel mounting operation becomes easier.

Further, according to the invention described in claim 3, since the above-mentioned base is formed in the vicinity of the ceiling, when engaging the engaging portion of the spring with the first and second engaging portions. Since it is not necessary to put the hand to the back of the ceiling one by one, the mounting work becomes easier.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a first embodiment of a ceiling speaker mounting device according to the present invention.

FIG. 2 is a partially omitted perspective view of a folding tool used in the first embodiment.

FIG. 3 is a view showing a spring mounting structure in the first embodiment.

FIG. 4 is a perspective view of a spring engaging portion according to the first embodiment.

FIG. 5 is an explanatory view of the engagement state of the spring with the spring engagement portion in the first embodiment.

FIG. 6 is a vertical sectional view of the second embodiment.

FIG. 7 is a vertical cross-sectional view showing an example of a conventional ceiling speaker mounting device.

FIG. 8 is a vertical cross-sectional view showing another example of a conventional ceiling speaker mounting device.

[Explanation of symbols]

 22 Ceiling 24 Ceiling Hole 28 Base 40 Spring 42 Locking Hole (First Locking Part) 44 Engaging Projection (Engaging Part) 48 Panel 54 Spring Locking Part (Second Locking Part)

Claims (3)

[Claims] 1. A speaker provided corresponding to the ceiling hole above a ceiling hole formed in the ceiling, a panel covering the ceiling hole from its lower surface side, and above the ceiling hole. Has a first locking portion provided at the one end and an engaging portion that is detachable from the first locking portion at one end, and is coupled to the panel through the ceiling hole and pulls the panel toward the ceiling hole side. A ceiling speaker mounting device comprising: a spring; and a second engaging portion that is provided above the ceiling hole and apart from the first engaging portion, and the engaging portion is detachable. 2. The ceiling speaker mounting device according to claim 1, wherein the base portion provided above the ceiling is provided with first and second locking portions. . 3. The ceiling speaker mounting device according to claim 2, wherein the base portion is provided near the ceiling.