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JPS50105437

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complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or
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DESCRIPTION JPS50105437
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal side view of a conventional
closed speaker box. Fig. 2 and the following show an embodiment of the present invention, Fig. 2
is a front view, Fig. 3 is a longitudinal cross-sectional view taken along the line-of Fig. 2, and Fig.
4 is an exploded side sectional view. FIG. 5 is a perspective view of a frame. 5
ииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииии ?Room, 14
..... Frame. Fig. 1 Fig. 2-87-50-105 437 (2) Fig. 3 Fig. 4 Fig. 5-88-
DETAILED DESCRIPTION OF THE INVENTION The present invention is directed to a speaker /
stem that facilitates the replacement of mid-high pitched speakers. FIG. 1 shows a conventional
two-way speaker stem, and 1 is a closed-type speaker box filled with a sound absorbing material
3, and a middle and high-pitched speaker 5 and a bass speaker 7 are attached to the front
thereof . The human power signal supplied to the terminal 2 is supplied to the bass speaker 7
through the lead wire 4 (1) 8. It is further supplied to the high / high-pitched speaker 5 via the
network 8 and the level adjuster 6. By the way, since it is the medium-high-pitched speaker that
determines the tone of the Manon Cui beak system, there is a desire to replace only this mediumhigh-pitched speaker. However, as described above, when the speaker box 1 is a closed type, its
replacement is extremely difficult. There is also a desire to change the 2 way to 3 way, but it is
impossible because there is no mounting hole for the speaker to be added. The present invention
is intended to meet the above-mentioned additional needs, and FIG. 2 and the following show an
embodiment thereof. Reference numeral 11 denotes a closed speaker box, and a bass speaker 7
is attached to the front surface thereof. A front upper portion of the speaker box 11 is partitioned
by an airtight partition plate 12, whereby a chamber 13 whose front is open is formed 1 (2). The
middle to high-pitched speaker 5 is fixed to the front of the frame 14 shown in FIG. The frame 14
is inserted into the chamber 13 as shown in FIG. 4 and is fixed by screws 15 screwed in from
both sides of the speaker,)-nox 11. A frame 8 is provided with a mesh 8 which is inserted
between a terminal pin 16 projecting from the back of the frame 14 and the middle high-pitched
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speaker 5. On the front face of the frame 14, a knob 6 of the level adjuster and a crossover
variable knob 17 are attached. An outlet 18 is provided at the back of the chamber 13 and is
connected to the terminal 2 through the lead wire 4. The receptacle 18 receives the terminal pin
16 and maintains electrical contact therewith when the frame 14 is inserted into and fixed to the
chamber 13. In addition, it is a saran net that covers the front of the low frequency speaker 7 and
is attached to the front of the speaker box 11 by the fastener 9. According to the above
configuration, the low frequency speaker 7 is attached so that the rear surface thereof is sealed
in the speaker box 11 (3), so that the function as the low frequency speaker can be sufficiently
exhibited. Because it is attached to the chamber 13, its back is not sealed, but its function as a
middle high-pitched speaker can not be ignored.
The middle-high-pitched speaker 5 can be easily replaced by pulling out the frame 14 from the
room 13. Further, the medium-high-pitched speaker 5 can be replaced by a three-way frame
provided with mid-tone speakers and high-tone speakers. It can also be changed to a speaker
system. In the present invention, as described above, a part of the closed speaker box is divided,
the middle and high row speakers are detachably attached thereto, and the bass speaker is
attached to the remaining portion, so that the function of the bass speaker is not impaired. , It is
easy to replace only the middle and high-tone speaker, and it becomes easy to change the sound
quality, and change the two-way, three-way, etc.
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