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JPS5723692

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DESCRIPTION JPS5723692
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a half sectional view of a conventional passive
radiator, and FIG. 2 is a half sectional view showing an embodiment of the passive-radiator of the
present invention. 1 и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и
и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и diaphragm, 10 и и и и и 11.12
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DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a low cost, high
productivity and high performance passive radiator. As a conventional passive radiator, it was
comprised as shown in FIG. That is, an edge 4 joined to the peripheral edge of the conical
diaphragm 3 together with the gasket 2 is bonded to the peripheral edge of the frame 1 drawn
into a truncated cone shape by an adhesive, and the central portion of the conical diaphragm 3 is
In this configuration, since the frame 1, the damper 5 and the like are used, the cone-like base at
the time of large amplitude, -2-37 sonii 2 vibration Although it can prevent the rolling of the
board 3, it requires a deeply squeezed frame 1 and a special damper 5 with high flexibility or
superiority, resulting in high parts cost and a disadvantage in terms of productivity, and the bass
by passive radiator The mechanical loss that hinders the regeneration is increased by the viscous
drag of the air flowing through the damper 5 due to the use of the damper 6, and the ideal bass
regeneration can not always be performed. The present invention is intended to eliminate the
above-mentioned conventional drawbacks, and to provide a low-cost and stable-quality passive
radiator with a simple configuration. Reference numeral 6 denotes a frame having a frame such
as a ring made of synthetic resin and having a step 7 provided on the upper surface thereof. The
periphery of the diaphragm 9 is made of synthetic resin or the like in a flat plate with the gasket
8 on the step 7 of the frame 6 The edge 1o attached to the-part is bonded by an adhesive and it
is ? 0. Further, hooks 11.12 are provided on the lower surface of the frame 6 and the lower
surface of the diaphragm 9, and between the hooks 11.12, a linear body 13 made of an elastic
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material of rubber or synthetic resin is stretched. The diaphragm 9 is suspended in the frame 6
by the linear body 13. The frame 6 and the diaphragm 9 can be manufactured by a method in
which they are simultaneously molded and then separated into two. As described above, since the
passive radiator of the present invention is configured, even if it is incorporated into a speaker
box and used as a conventional passive radiator with a damper, the moving plate is inclined or
rolling is performed by using a plurality of support elastic bodies. It is also possible to
simultaneously form both the frame and the diaphragm with synthetic resin without causing any
problems, which is extremely advantageous in terms of cost, which makes the assembly easy, and
the support of the linear body further reduces the viscous drag of the air and reproduces the
bass. The advantage is that the flexibility of the linear body can be arbitrarily changed, and the
selection of the characteristics is easy, which has various advantages and is of great practical
value 11.
one'.
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