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BRIEF DESCRIPTION OF THE DRAWINGS FIGS. 1 (a) and 1 (b) are a perspective view and a
longitudinal sectional view, respectively, showing a front grill of a conventional speaker device
having a concave curved portion, and FIGS. 2 (a) and 2 FIG. 3 is an exploded perspective view
showing an assembling method in the same embodiment, and FIG. 4 is a cross-sectional view of a
main part showing in detail the essential parts in the same embodiment is there. 2 · · · · · · · · · · · · ·
· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · front grill, (61) 77 β r lv - 55 - Uta 51-31523
(2) 12 (6 l)! 0β No 4β-56-
DETAILED DESCRIPTION OF THE PROBLEM The present invention relates to a front grill of a
speaker device in which a key portion of a saran net forms a surface portion of a former theater.
(B) v, v, a front grill of a speaker device with a saloon attached to a saloon on a building where
part of the busy plane C1 (part A in the figure) forms a concave curved surface in 6, In IILC, in
order to forgive the former concave curved surface [i; i, the desired f'l portion of the saran frame
12 which donates the saran net 11 is concave curved surface and so on and it is understood by
the resin molding town 'i She was stuck to Saran net 11 on the concave curved part of this saran
p + 12 by glued to her. However, it is difficult or difficult to prepare the run - length frame 12
itself like this because it is relatively thick type @ 6t, the work of sticking the chainsum saran net
11 to the saran frame rzlF is also complicated there were. Furthermore, it is not foolish to apply
the above-mentioned rutinous complicated shape and relatively thick resinous relatives short, in
order to cope with the recent rise in the raw material price and the material shortage chicks,
which is inexpensive Make it simple by using materials l The necessity is increasing. The book is
a book that was wrapped based on such unfaithfulness, so its composition is inexpensive and
inexpensive, and in addition it is manufactured 4.1! It aims at providing a leiron grill of an easy
21 is a saran frame made of wood made according to the desired front grill shape. For example,
in this case, in order to make the front grille 1 and 1 "like the front grill shape shown in FIG. 1, in
this case the upper M front surface is made to protrude in the age direction and m front
projection protrusions Subordinate end lobe Pa This is laterally squeezed from the ledge 2 Ib
which is formed by connecting the lower end of the protruding portion of the protruding portion
of the frame main body 21 a and the frame main body 21 a K of the curved surface of the curved
surface. On the other hand, the dimension 22 shown in Fig. (B) is formed as a token that can
sustain one side and side of this saran frame according to the # 21 runframe 21. As shown in Fig.
On the rear side of F 'center of this saran net 22, a band-like cloth piece 23 made of cloth of @ 1
saran net 22 and Pi 5 + is supported at the one end portion in the width direction in
correspondence with i 21 bK of the i% i I' i I bow · saran frame 21 Sew and general company. In
order to stick the saran net 22 like the queen to the saran frame 21, sew the cloth piece 23 as it
says to No. 8 1 and fr @ '□ I busy sunnets 22 1! As shown in the figure, the peripheral part of
the front station saran net 22 is arranged along the outer peripheral surface of the front saran
frame 21, as shown in the figure, so that the rear end of the folding self-supporting saran frame
21 For example, the other end portion of the # T & & lt; & lt; & gt; piece 23 is tangential from the
lower side of 21 b of the saran frame 21 as well as the appropriate tension Advise me → 21b's
[Fixing with a spinning staple 24 @ to one part, if you wear% of the saran net 22 to the saran
frame 21 in this way, tension acts in the longitudinal direction and the lateral direction of the
saran net zxkC, and l! , The tension applied from the back surface acts on this partial piece of
bushing zsK. Accordingly, a desired concave curved line ic] e of the saran frame zxK is formed on
the front surface of the front grill 2 by the #i saran net 21. In this way, by sewing the cloth piece
23 on the saran net 22 and indicating it with the lane 21 b K of the saran frame 21, by the fist
which applies the tension from the back stone against the front 1 saran belt 22, the wood heat J
It is possible to easily form a desired concave curved surface by using the simple citation
awarded saran frame 21 formed using an inexpensive material. Moreover, since the
configuration is simple, it is easy to manufacture, for example, as shown in the drawing, if the
long hole is formed in the side surface of the projecting portion of the frame main body 21a and
the directional characteristic of the speaker device constructed using this is not damaged It is
easy to do. The idea of
the tooth powder is not limited to only the embodiment arranged in the
upper drawing and shown in the drawing, and its main object is to carry out it with extremely
deformed within the range not to change the tube. In embodiment k) In, staple z 4 fm, so that the
t-run net 22 is attached to the saran frame 21 [may be attached by using, for example, an
adhesive agent]. As described above, according to the present invention, it is easy to manufacture
the key grid at a low cost, and it is easy to manufacture the front grill of the speaker device.
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jps5131523, description
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