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DESCRIPTION JPS5211335

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DESCRIPTION JPS5211335
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view showing one embodiment of a
ceiling-embedded heat resistant horn speaker according to the present invention, FIG. 2 is a plan
view thereof, FIG. 3 is a bottom view thereof, FIG. 5 is a front view of the speaker body, FIG. 5 is a
front view of the speaker mounting frame, FIG. 6 is a perspective view of the frame attachment, T
is an explanatory view showing a state where the speaker reinforcement frame is attached to the
ceiling board, 8 is an explanatory view showing a state in which the speaker mounting frame is
attached to the ceiling beam material, FIG. 9 is a front view showing another embodiment of the
speaker main body, and FIG. 10 shows another implementation of the ceiling embedded type
heat- FIG. 11 is a bottom view of the same. 1 ... circumferential groove, 2, 30 ... net mounting
frame, 3 ... speaker body, 4 ... leaf spring, 5 ... flange section, 6 ... speech mounting frame, 1 ·
..Frame attachment, 8 ... wire material, 9 ... adding tool, 10 horn part, 12 ... transformer 13 ...
magnet, 14 ... diaphragm, 15 ... UNISOTO Section, 16 ... drawing cord, 17, 29 ... net, 19 ...
mounting element L20 ... opening, 21 ... bottom plate, 22 ... screw thread L23 ... top plate, 24 ...
round hole, 25 ... mounting screw, 26 ... ceiling beam material, 27 ... square speaker body, 28 ...
convex part. -89 - U.S. Publication No. 52-11335 (2) No. 6, FIG. 6 -90, Japanese Utility Model
Application Laid-Open No. 52-11335 (3) Ikka-91
Ichigo 5211335 (4) No. 10 FIG. -92 one
DETAILED DESCRIPTION OF THE PROBLEM The present invention is extremely easy to wire and
install, and even when the ceiling is burned down due to a fire or the like, the ceiling embedded
heat-resistant type (1 honospi power concerned) is prevented from falling. A conventional
ceiling-embedded emergency heat resistant horn speaker has a round hole in one ceiling board
and fitting a speaker in this round hole - Since the entire speaker is screwed to the ceiling board,
it supports the entire speaker at the time of installation Work must be carried out while doing so
- wiring and installation work is extremely difficult, and in case the fire has burned down the
ceiling due to fire, the speaker also falls down and becomes unusable and dangerous There was a
drawback that it had. SUMMARY OF THE INVENTION The present invention has been devised in
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order to solve the above-mentioned drawbacks, and it is an object of the present invention to
provide a loudspeaker having a speaker body formed of a heat resistant material having one or a
plurality of engaging portions outwardly, And a loudspeaker mounting frame formed of a heat
resistant material having a plurality of plate springs at an upper portion thereof which engage
with the L arrangement engagement portion when inserted from the lower side and a collar
portion at a lower end thereof, And a ceiling plate or a ceiling beam material, a speaker is formed
by a frame attachment member 7, and one end of a wire (2) wire, a wire such as a wire is
connected to the top of the speaker body · Fixed and drill a round hole in the ceiling, attach a
lightweight speaker mounting frame, then fix the free end of the wire to the ceiling beam
material on the ceiling back side, hold the speaker body and connect the oitte healer , The
speaker body By inserting from the F side of the speaker mounting frame and attaching the leaf
spring to the engaging portion by engaging it, wiring and mounting can be done extremely easily
and at the same time the falling of the ceiling can be prevented by the ceiling To provide an
embedded heat resistant hoe / speaker. We will explain the composition of this invention based
on the embodiment shown in the same song. As shown in FIGS. 1 to 6, the ceiling embedded heat
resistant horn speaker in this embodiment is a heat resistant material having a circumferential
groove 1 on the outer surface and a flanged net attachment frame 2 at the lower end A plurality
of plate highs 4.4 · - which are engaged with the circumferential groove 1 when the speaker body
3 of the formed speaker body 3 and - are inserted from the lower side and the flange portion 5 at
the lower end From a speaker mounting frame 6 formed of a heat-resistant material having the
same, and a frame attachment 7 formed of a heat-resistant material for fixing the flange 5 of the
speaker mounting frame 6 and the ceiling plate or the ceiling (3) beam material , And one end of
a wire 8 such as a binding wire and a wire is connected and fixed to the upper part of the
speaker main body B. This wire 8 is formed by connecting and fixing one end of a wire 8, A
fixture 9 having a U-shaped cross section is fastened to the end of the screw, and the fixture 9 It
is firmly connected and fixed by winding one end of the wood 8.
The speaker body 3 has a horn wall folded back to the horn portion 10 inside the speaker body 3
and a unit portion 15 composed of the transformer 12, the magnet 16, the diaphragm 14 and the
like is housed inside the horn wall . 16 is a drawing code -17 is a net. The inner diameter of the
speaker mounting frame 6 is formed slightly larger than the outer diameter of the speaker body
6 so that the speaker body 6 can be easily inserted from the side of the speaker mounting frame
6. The plate spring 4-4
provided at the upper portion of the speaker mounting frame 6 curves
inward toward the projection 1 so as to be able to engage with the circumferential groove 1 of
the speaker body, and the protruding portion or the curved portion of this (4) And the diameter
of the connecting circle is smaller than the outer diameter of the speaker body 3. A plurality of
attachment holes 19.19 are formed in the peripheral edge portion of the collar portion 5 in the
lower part of the speaker attachment frame 6. The frame attachment 7 is formed into a shape
having a cross-sectional rectangular shape and having an open portion 20 at its upper portion,
and a screw hole 22 is formed in the bottom plate 21. Using the attachment hole 19 at the
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peripheral edge portion of the collar portion 5, The speaker mounting frame 6 can be attached to
the ceiling. Although the heat resistant horn speaker in this embodiment is formed of metal, a
heat resistant material such as a heat resistant synthetic resin may be used instead of a metal,
and then 0 will be explained. Next, a method of attaching the speaker of the present invention
embedded in the ceiling will be described . 7, the speaker mounting frame 6 is inserted into the
round hole 24 slightly larger than the speaker mounting frame 6 on the ceiling board 26, and the
mounting hole 19 at the peripheral edge portion of the flange portion 5 Then, a hole is drilled in
the ceiling plate 26 so as to coincide, then the frame attachment 7 is directly placed on the
ceiling, and the flange 5 of the speaker mounting frame 6 and the frame attachment (5) 7 are
tightened by the attaching screw 25 The speaker mounting frame 6 is fixed to the ceiling plate
26. Further, as shown in FIG. 8, the frame attachment 7 is passed through the ceiling beam
material 26 on the ceiling rear in advance so that the speaker attachment frame 6 can be more
firmly fixed to the ceiling. When the speaker mounting frame 6 is fixed to the ceiling as described
above, the wire rod 8 is reliably bound and fixed to the ceiling beam member while supporting
the speaker main body 3, the speaker main body is held, and the leader cord of the speaker main
body 16 - After inserting the speaker body 6 into the speaker mounting frame 6, the plate spring
4 - 4 is engaged with the circumferential groove 1 and fit. The wire rod 8 is pushed into the
ceiling as it is while being connected / fixed to the ceiling beam material. Since the groove of the
speaker body is provided in a circumferential shape, even if the speaker body 6 is inserted from
any direction, the plate springs 4, 4 of the speaker mounting frame engage with the groove, and
the speaker body 6 is inserted into the speaker mounting frame 6 with one touch.
It is also possible to use the wire 8 for grounding. Further, as shown in FIG. 9, by forming a
plurality of circumferential grooves 1 - 1 on the outer periphery (6) of the speaker body, it is
possible to absorb variations in the length of the leaf springs or deformation of the ceiling board
it can. In some cases, the net is not attached to the lower end of the speaker body 6, and in this
case, the attachment frame 2 is not necessarily required. Even when the above-mentioned wire
rod is connected / fixed to the conventional ceiling-embedded heat-resistant horn speaker, it is
possible to facilitate the wiring and mounting work of the speaker and prevent the speaker from
falling. In the above-described embodiment, the case where the circumferential groove is
provided on the outer surface of the speaker body as the engaging portion has been described,
but instead of providing the entire groove around the entire circumference, it may be provided
only in a part, or a recess such as a groove is provided Alternatively, one convex portion may be
provided on the entire circumference or a part of the speaker main body. The speaker according
to the present invention is not limited to a round speaker as in the above embodiment - for
example, as shown in FIGS. 10 and 11, the speaker of the square speaker main body 27 may be
recessed in a part of the entire periphery or outward direction k may form the engaging portion
by providing the convex portion 28. 29 is a net, and 30 is a nets (7) mounting frame. As
described above, the ceiling-embedded heat-resistant horn speaker of the present invention can
attach a loudspeaker main body of one weight by one touch after attaching a lightweight speaker
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mounting frame - Furthermore, one end of the wire is connected to the top of the speaker body
Since it is fixedly installed, by fixing the free end of this wire to the ceiling beam material, it is not
necessary to support the speaker body when connecting the speaker, so wiring work becomes
easy and the whole , It is possible to easily install the speaker, and even if Oii is burned down due
to fire or the like, falling of the speaker is prevented and thus it is extremely safe. In addition, it
has the effect that the above-mentioned wire material can also serve as a ground.
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