JPH071912Y2 - Ceiling embedded speaker mounting structure - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a mounting structure for a ceiling-embedded speaker, and more particularly to a mounting structure for a ceiling-embedded speaker that can be mounted without using mounting screws. .

<Prior Art> Conventionally, a ceiling-embedded speaker that has been widely used has a grill for mounting the speaker, a cover for mounting the grill,
It consists of a decorative frame that attaches the cover to the ceiling plate.

The grill is designed with acoustic holes on the underside, and the speaker and cover are attached to it. The cover is mainly required for disaster prevention safety. The decorative frame is a mounting bracket for fixing the grill to the ceiling plate. And these were installed as follows.

That is, the speaker is attached to the grill with screws or the like, and the cover is attached thereto with screws or the like. Also attach the grill with both attached to the decorative frame that is already attached to the ceiling plate with screws.

<Problems to be Solved by the Invention> However, the above-mentioned conventional mounting method has a problem that the head of the screw is not visible because the screw head is visible from the outside in addition to low working efficiency and danger.

The present invention has been made in view of the above circumstances, and provides a ceiling-embedded speaker mounting structure that can be mounted without using a mounting screw or the like for mounting a grill and a decorative frame. It is an object.

<Means for Solving the Problems> A ceiling-embedded speaker mounting structure according to the present invention has a decorative frame to be mounted on a ceiling plate, a substantially thin plate-shaped grill to which the speaker is mounted, and a grill to be mounted on the grill. A ceiling-embedded speaker mounting structure, which comprises a bottom-cylindrical cover, and mounts the speaker on a ceiling plate by mounting the cover on a decorative frame.

The decorative frame has a plurality of claws provided upright on the inner peripheral wall and a decorative frame projecting ridge protruding inward from the inner peripheral wall.

Further, the cover has a flange, a plurality of cover protruding pieces protruding from the flange, and a plurality of cover locking claws protruding from the flange.

Further, the peripheral wall of the grill has a speaker bent portion bent inward and a cover bent portion.

On the other hand, the decorative frame is attached to an attachment opening formed in the ceiling plate by bending a claw.

Further, by fitting the speaker into the grill and rotating the speaker, the protrusion of the frame of the speaker is locked to the bent portion for the speaker to attach the speaker to the grill.

Further, by fitting the cover into the grill and rotating the cover, the cover projecting piece of the cover is locked to the cover bent portion of the grill to attach the grill to the cover.

The cover is attached to the decorative frame by fitting the cover into the decorative frame and rotating the cover so that the cover locking claws of the cover are locked to the decorative frame projections of the decorative frame.

<Operation> When the cover is fitted into the grill to which the speaker is attached and rotated, the grill locking claw is locked in the grill locking recess, the rotation of the cover is blocked by the grill stopper, and the cover is fixed to the grill. On the other hand, a decorative frame is fitted into a mounting opening formed in the ceiling plate in advance and fixed to the ceiling plate.

Next, lift the grill with the cover attached from below and fit it into the decorative frame, and rotate it.

As a result, the cover locking claw of the cover is locked in the cover locking recess of the decorative frame, the rotation of the cover is blocked by the cover stopper, and the cover is fixed to the decorative frame.

<Embodiment> An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is an external perspective view of a cover with a part cut away, FIG. 2 is an external perspective view of a grill showing a state where a speaker is attached, and FIG. 3 is an enlarged view of a main part of the cover and the grill. a) shows the state after fixing the cover to the grill. FIG. 4 is an external perspective view of the decorative frame, FIG. 5 is an explanatory view showing a state in which the cover is attached to the decorative frame, FIG. 6 is an enlarged view of a main part of the cover and the decorative frame, and FIG. The state where the cover is fitted in the frame is shown, and FIG. 6B shows the state where the cover is fixed to the decorative frame.

The ceiling-embedded speaker of the present invention comprises a speaker 10 and a speaker.
Grill 20 for mounting 10 and decorative frame 40 for mounting to ceiling board 50
And a cover 30 attached to the grill 20.

As shown in FIG. 2, the speaker 10 is of a widely used type, 11 is a frame of the speaker 10, 12 is a plurality of protrusions formed on the outer periphery of the frame, and the protrusion 12 has a grill. A mounting hole 13 for 20 is provided.

The grill 20 has an upper opening, and an acoustic hole (not shown) is formed in the bottom wall 22.
Is formed into a substantially thin plate shape, and a plurality of cover bending portions 23 are formed by cutting the peripheral wall 21 and bending the peripheral wall 21 inward. The cover bent portion 23 has a grill locking claw 231 formed so as to project downward from the cut line. The grill locking claw 231 is formed on the cover 30 when the cover 30 fitted to the grill 20 is rotated in the direction of the arrow A shown in FIG. 3A.
It is designed to be locked to. In addition, in FIG. 2, a plurality of speaker bent portions 24 corresponding to the cover bent portion 23 are formed, and the frame stopper 242 protruding downward from the cut line and the circumferential direction of the grill 20 are formed. And a long hole 243 formed in the. And the frame stopper 242
Rotating the frame 11 of the speaker 10 fitted in the grill 20 and twisting the long hole 243 with the tip of a driver or the like to deform the long hole 243, and as shown in FIG.
The speaker 10 is fixed to the grill 20.

As shown in FIG. 1, the cover 30 is a bottomed cylindrical body with a flange for safety in disaster prevention, and a cover protruding piece 32 protruding outward from an outer peripheral edge 31 of this flange is bent for the cover. It is formed at a position corresponding to the portion 23. On the upper surface of the cover projecting piece 32, there are provided a grill locking recess 321 for locking the grill locking claw 231 of the grill 20 and a grill stopper 322 formed integrally with the grill locking recess 321. A plurality of cover engaging claws 33 formed to protrude outward from the flange outer peripheral edge 31 are provided between adjacent cover protruding pieces 32.

When the cover 30 fitted in the grill 20 is rotated in the direction of arrow A in FIG.
Engages with the grill locking claw 231 of the grill 20. Rotation is blocked by the grill stopper 322, and the cover 30 is fixed to the grill 20.

In addition, a taper 323 is provided at one end of the cover protruding piece 32 so as to be lowered frontward in the rotation direction, so that the grill locking claw 231 can be smoothly transferred to the upper surface of the cover protruding piece 32.

The cover locking claw 33 is locked in the cover locking recess 441 formed in the decorative frame 40 when the grill 20 fitted in the decorative frame 40 is rotated in the direction of the arrow D in FIG. 5 (a). It is like this.

A bush hole 34 is formed on the top surface of the cover 30, and one end of the speaker input line 14 is connected to the terminal 15 attached to the frame 11 through this hole.

As shown in FIG. 4, the decorative frame 40 includes an inner peripheral wall 42 of the flange 41.
Decorative frame projecting pieces 44 projecting inward from are formed in the same number as the cover locking claws 33.

Next, a procedure for mounting the speaker having the mounting structure according to the present invention on the ceiling plate will be described.

The cover 30 is fitted into the grill 20 to which the speaker 10 is attached.

When the cover 30 is rotated in the direction of arrow A in FIG. 3A, the locking claw 231 of the grill 20 is locked in the locking recess 321 of the cover 30, and the rotation of the cover 30 is blocked by the grill stopper 322. . As a result, the cover 30 is fixed to the grill 20.

The decorative frame 40 is attached to the ceiling plate 50 in advance.

That is, as shown by the arrow B in FIG. 5, the decorative frame is attached to the attachment opening 51 of the ceiling plate 50 by bending the claw 43. Although only one claw 43 is bent in FIG. 5, it goes without saying that the remaining two claws 43 are similarly bent.

The grill 20 to which the cover 30 is fixed is attached to the decorative frame 40 at C in FIG.
Insert from the direction of the arrow.

While holding the grill 20 from below, rotate it in the direction of arrow D shown in FIG. Then, the cover locking claw 33 of the cover 30 is locked in the cover locking recess 441 provided in the decorative frame projection 44 of the decorative frame 40. And the cover stopper 442
The cover locking claw 33 is brought into contact with and the rotation of the grill is prevented (see FIGS. 6 (a) and 6 (b)). As a result, the speaker 10 is attached to the ceiling plate 50.

In the above description, the shapes of the locking claws and the locking recesses are not limited to the present embodiment, and the shape of the speaker and the decorative frame is not limited to the circular shape, but may be an elliptical shape or other shapes. May be.

<Effects of the Invention> As described above, in the ceiling-embedded speaker mounting structure according to the present invention, the cover is locked and fixed to the grill to which the speaker is mounted, and then the grill is fitted into the decorative frame and these are mounted without screws. It is designed to be fixed. Therefore, there are the following effects.

Mounting the ceiling-embedded speaker to the ceiling plate is extremely easy and does not take much time.

Since no screws are used, the work can be automated.

Since the screws are not visible, it looks good after mounting as a whole.

[Brief description of drawings]

1 is an external perspective view of a cover with a part cut away, FIG. 2 is an external perspective view of a grill showing a state where a speaker is attached, and FIG. 3 is an enlarged view of a main part of the cover and the grill. a) shows the state after fixing the cover to the grill. FIG. 4 is an external perspective view of the decorative frame, FIG. 5 is an explanatory view showing a state in which the cover is attached to the decorative frame, FIG. 6 is an enlarged view of a main part of the cover and the decorative frame, and FIG. The state where the cover is fitted in the frame is shown, and FIG. 6B shows the state where the cover is fixed to the decorative frame. 10 …… Speaker 20 …… Grill 23 …… Bend for cover 231 …… Grill locking claw 30 …… Cover 31 …… Flange outer edge 32 …… Cover protruding piece 321 …… Grill locking recess 322 …… Grill Stopper 33 …… Claw 40 …… Decorative frame 43 …… Claw 44 …… Decorative frame projection 441 …… Cover locking recess 442 …… Cover stopper 50 …… Ceiling plate

Claims (1)

[Scope of utility model registration request] 1. A decorative frame attached to a ceiling plate, a substantially thin plate-like grill to which a speaker is attached, and a bottomed cylindrical cover attached to the grill. The cover is used as a decorative frame. In a ceiling-embedded speaker mounting structure for mounting a speaker on a ceiling plate by mounting, the decorative frame comprises a plurality of claws provided upright on an inner peripheral wall, and a decorative frame projecting piece protruding inward from the inner peripheral wall. The cover has a flange, a plurality of cover protruding pieces protruding from the flange, and a plurality of cover locking claws protruding from the flange, the peripheral wall of the grill, It has a speaker bent portion bent inward and a cover bent portion, and the decorative frame is attached to a mounting opening formed in the ceiling plate by bending a claw, The grill By fitting and rotating the speaker, the protrusion of the speaker frame is locked to the speaker bending portion, the speaker is attached to the grill, and the cover is fitted and rotated on the grill to rotate the grill. The cover protruding piece of the cover is locked to the cover bent portion, the grill is attached to the cover, and the cover is fitted into the decorative frame and rotated to cause the cover locking piece of the cover to be the decorative frame of the decorative frame. A mounting structure for a ceiling-embedded speaker, characterized in that a cover is attached to a decorative frame by being locked to a ridge.