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DESCRIPTION JPS5495225

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DESCRIPTION JPS5495225
BRIEF DESCRIPTION OF THE DRAWINGS FIGS. 1 and 2 are perspective views of different
embodiments showing the constituent members of the front face net tensioning apparatus
according to the present invention, respectively, and FIG. 3 shows the net FIG. 4 and FIG. 5 are
cross-sectional views of partial cutaway showing different examples of fitting configurations by
constituent members, respectively, and FIG. 6 is a front view showing the front face net FIG. 7 is
a partial cross-sectional view showing a fitted state of the constituent members of the tensioning
device, in which a part of another embodiment showing the constituent members is cut away. . 1
... front frame, 2 ... main frame member, 2a ... rear face, 2C ... front face, 3 ... ... sub member, 4 · · · ·
Groove part, 5 · · · net, 5 a · · · circumference, 6 · · · · ridge part.
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for
attaching a net to a front frame of a speaker cabinet. Conventionally, in order to net gold on a
front frame of a loudspeaker cabinet made of wood, synthetic resin or the like, it is necessary to
adjust the strength of the tension of the net by hand, fix it with a staple or stretch it by heating
Although I was wearing it, in these methods it was easy to deform the weave of the net and the
beauty W 74 in order to adjust the strength of the tension of the net by hand. In addition, since
skill is required for the sticking operation, work efficiency is not increased because it requires
time for postal mail, and in the case of stapling, there is a drawback such as sternol appears on
the surface so that the appearance is harmed . The present invention aims to solve all the
drawbacks as described above, so that it is divided into a front frame sound frame member and a
protrusion member of the speaker cabinet, and the two members are attached to each other to
stick to the front surface of the front frame In order to provide a net tensioning device for a
speaker cabinet which is capable of clamping and fixing a net so that the net can be stretched
without deformation in a short time and with a moderate beam, the present invention , In the
figure, 1 is a front frame, and the front frame 1 is composed of two members, that is, the main
frame member 2 and the protrusion member 3. Then, the main frame member 2 is necessarily
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integrally formed as a frame shape However, the protrusion member 3 may be integrally formed
as a frame shape as shown in FIGS. 1 and 6, or it may be formed into four pieces by dividing each
side per side as shown in FIG. 2 - On the entire periphery of the back surface 2a of the main
frame member 2, As shown in the embodiment of Figure 1 and Figure 2, continuously formed
groove A having a predetermined width. On the other hand, the slave member 3 is formed so that
the slave member 3 itself can be fitted into the groove portion 4 of -F, but the state of
engagement between the groove portion 4 and the slave member 3 is as follows When the net 50
periphery 58 is clamped by fitting, it is set so that the fitting is not easily released. My father, in
order to prevent sliding movement of the surroundings 5
from the subordinate member 3
inadvertently when the fingers and the above-mentioned both 4 and 3 are fitted together and
hooked around the periphery 5 of the net 5, the submembers 3 are partially or totally 4 shows a
cross sectional view of a fitting in another embodiment of the present invention, but the slave
member 3 is fitted in the groove 4 of the main frame member 2 So as to protrude therefrom. FIG.
5 is a cross-sectional view of another embodiment showing a fitting state, which is opened to the
groove portion 4 of the main frame member 2, the back surface 2 a and the inside surface 2 b
thereof, and the slave member 3 is As in the embodiment, the slave member 3 itself is fitted into
the groove portion 4).
FIG. 6 is a perspective view of a portion of another embodiment of the present invention in a
disassembled state, in which a protruding portion 6 having a predetermined width is
continuously formed on the entire circumference of the back surface 2 a of the main frame
member 2 On the other hand, a groove portion 7 to be engaged with the above-mentioned ridge
portion 6 is formed on the follower member 3. Next, it will be described in the stretching process
of the net. In any of the front frame 1 of each of the above embodiments, firstly, the net 5 such as
a saran net or the like is expanded so as not to cause deformation or sag of the weave on the
work table, and the main frame member 2 is placed on the net 5 , So that the front face 2 thereof
is placed so as to contact the net 5 (note that the main frame member 2 is placed on the net 5 so
that the periphery 5a of the net 5 is all the same width from the outer periphery of the main
frame member 2 Then, after the periphery 5a of the net 5 protruding from the outer periphery of
the main frame member 2 is entirely folded back to the back surface 2a, in the case of FIG. 1, FIG.
2, and fifth prisoner , In the case of FIG. 4, the sub member 3 itself is formed in the groove
portion 4, in the case of FIG. 4, the ridge portion 3 a of the sub member 3 is formed by the gauze
4, and in the case of FIG. 6 the ridge portion 3 a of the VC D main frame member 2 As shown in
FIGS. 3, 4, 5, and 7, when the # 1 g 1 r of the slave member 3 is fitted to each other, the
periphery 5 a of the net 5 The net 5 of fi 2 C in front of the main frame member 2 is pulled with
the same tension toward each side of the main frame member 2 in the above fitted overplate,
And is attached to the forward direction 2 C of the main frame member 2 with a moderate
tension. For this purpose, it is necessary that both members 2 and 3 are fitted simultaneously
over the whole 1. The fitting of both members 2 and 3 is fixed by an adhesive, or at least one of
both members is made of rubber Or the like so that only the fitting portion of at least one
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member of both members is formed of an elastic material and pressed into the sub member gold
frame member or the like is used It is desirable to fix it. As described above, the mesh 5 can be
attached to the front face 2C of the main frame member 2 by clamping and fixing the periphery
5at of the net 5 by the fitting between the fresh member 2 and the slave member 3 , The
stretching process of the net 5 is simplified and it is possible to do without requiring skill in a
short time. Since the main frame member 2 and the slave member 3 are fitted together, the same
tension is applied to the net 5 toward each side of the main frame member 2, so that the weft of
the net 5 is corrected at the beginning of the stretching process If so, the weave shape does not
change extremely, l! And the net 5 also sticks to the main frame member 2, that is, the front
frame 1 with appropriate tension. Furthermore, since the net 5 is fitted and fixed on the back
surface 2 a of the main frame member 20 by the slave member 3, the appearance viewed from
the front surface of the front frame 1 is very fine.
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