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DESCRIPTION JPS5642090

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DESCRIPTION JPS5642090
BRIEF DESCRIPTION OF THE DRAWINGS FIGS. 1 and 2 are perspective views showing a general
speaker box and a speaker horn, FIG. 3 is a two-sectional view of a conventional example, and
FIG. 4 is a cross- FIG. 5A and FIG. 5B are a side view and a plan view showing essential parts of
FIG. 4, and FIG. 6 is a top view showing the mounting completed state of the above embodiment.
1 ... speaker box, 2 ... baffle board (mounting board), 3 ... speaker horn, 3a ... ... flange section
(plate-like part), 3b ... Reflective wall, 3C ... Speaker mounting part, 3d ... ... screw insertion hole,
3e '... ... screw, 3f ... step part , 3 g · · · · ridges, 5 · · · · · · screws, 6 · · · · · packing.
DETAILED DESCRIPTION OF THE DEVELOPMENT 2 The present invention relates to a mounting
device for a plate-shaped part, and it is an umbrella claw ρ 2. Conventionally, in a multiway
speaker system, as shown in FIGS. 1 to 3, a rectangular flange portion 3 a, an arcuate reflection
wall 3 b, a pyramidal speaker attachment And a portion 3C are mounted on the speaker horn 3.
Specifically, as shown in FIG. 3, the paddy 4 is attached to the back surface of the flange portion
3a, and the four corners are tightened with screws 6. However, it is extremely troublesome to
stick the paddle 4 with an adhesive or the like as described above, and there is a problem that the
operation time is prolonged. SUMMARY OF THE INVENTION It is an object of the present
invention to provide a mounting device for a plate-shaped component which solves such a
conventional problem. DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the
present invention will now be described with reference to FIGS. 4 to 6. In FIGS. 4 to 6, the same
reference numerals are given to parts having the same functions as those in FIGS. 1 to 3, and the
description thereof is omitted. Screw insertion holes provided at the four corners of the seven
runs lla 3 of the sdi'i speakerphone 3, 3 eid Bosses provided around the screw insertion holes 3
d, 3 f are provided from the outer periphery of the boss 3 e toward the corners of the flange
portion 3 a The step part 6 is a packing cut out of paper or the like. In this embodiment, the ridge
3 q is provided over the entire outer circumference of the 7-lance portion 3. 5 (-), the stepped
portion 3f protrudes from the tip of the protrusion 3q only by a, so that a part of the packing 6
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enters into the protrusion 3q and protrudes by a from the tip of the protrusion 3q As a result, the
thickness "a" of the portion protruding from the ridge 3 q of the packing 6 is substantially equal
to the thickness "a" of the stepped portion 3 f. Also, as shown in FIG. 5), at the four corners of the
packing 6, a hollowed portion matching the shape of the boss 3 e and the step portion 3 is
provided, and the length b between the boss 3 e and the boss 3 e The length C between the
cutout portions is slightly longer than the length C between the cutout portions. In the above
configuration, when the paddle 6 is slightly bent and fitted between the four bosses 30, the inner
peripheral surface of the hollowed out portion of the paddle 6 is lightly pressed against the outer
peripheral surface of the boss 3 e, and the pressure contact force , The packing 6 is temporarily
fixed to the back surface of the flange portion 3a. Therefore, as shown in FIG. 6, once the flange
portion 3 & is fixed to the baffle plate 2 with screws 5, the reworking of the speaker horn 3 is
completed. At this time, since the tightening force of the screw 4 intensively acts on the four
corners of the flange portion 3 a, the portion located outside the boss 3 e sinks toward the baffle
plate 2 side and the flange The gap between the baffle plate 2 and the vicinity of the center and
the four corners of the portion 3 a varies and it becomes unsightly in appearance.
However, in this embodiment, since the stepped portion 3 f having a concentric thickness with
the protruding dimension a of the packing 6 is provided at the four corners, the outer side of the
boss 3 e does not sink and the four corners bend and the appearance becomes unsightly There is
no. In addition, as in the present embodiment, when not providing a perfect round hole in the
paddle 6 but providing a hollowed portion, the following effects are also expected. That is, in the
case where circular holes to be fitted to the bosses 3e are provided at the four corners of the
packing 6, there is a situation that the circular holes can not be fitted to the bosses 3e even with
slight variations in the accuracy of 5, and the mounting of the packing 6 Work becomes difficult.
In particular, in order to provisionally fix the paddle 6 with a single touch only by mating the
round hole and the boss 3e, it is necessary to sufficiently increase the dimensional accuracy of
the round hole, which is extremely difficult to realize. Further, when fitting the round hole to the
boss 3e, a thin portion positioned outside the boss 3e is liable to break, there is a problem that
the fried portion appears outside and the appearance becomes unsightly. On the contrary, as in
this embodiment, by providing a hollowed out portion in the paddle 6 and providing a stepped
portion 31 having substantially the same thickness as the paddle 6 on the outside of the boss 3e,
the dimensional accuracy of the packing 6 also becomes There is no particular need to make it
high, you can temporarily fix with a single touch without breaking a part of the packing 6, t, 'Th?
'T, 7'y'yy "3 · It is possible to surely prevent deflection of P · tA. - m - In the above embodiment,
the flange portion of the horn is used for the speaker as a plate-like component, but other platelike portions may be used. Also, it is unnecessary to provide six protrusions 3 q on the outer
periphery of the flange portion 3 q. As described above, according to the present invention, it is
possible to provisionally fix the padkin to the plate-like part with a single touch, and by the
action of the stepped part provided at the four corners of the plate-like part, the plate- And it is
possible to make the appearance beautiful.
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