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This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or
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BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of the inventive speaker.
1 is a reinforcing plate, 2 is a passive diaphragm, 3 is a diaphragm, 4 is a frame, 5 is a plate, 6 is
a magnet, 7 is a center pole, 8 is a voice coil, and 9 is a through hole.
DETAILED DESCRIPTION OF THE INVENTION In the Invention: 1. A bass diaphragm is attached
to a diaphragm of a bass speaker. A loudspeaker is a bass speaker in the case of a speaker system
incorporating a conventional parabal diaphragm. Since it was divided into two units (the unit and
the pano knob diaphragm speaker, it was necessary to increase the area of the 41-n 272 baffle
plate and to increase the capacity of the speaker box. The present invention has been devised to
eliminate the necessity described above, and an embodiment shown in FIG. V will be described.
Referring to FIG. 1, as shown in FIG. A magnetic gap is formed between the top outer surface of
the circuit center pole 7 and the inner surface of the plate 5, the bottom of the truncated cone 4
is connected to the top of the plate 5, and the voice coil 8 is located at the center of the magnetic
gap. Attach the edge to the frusto-conical diaphragm 3 with the voice coil 8 hanging down at the
center as shown in Fig. X, X), and frame the outer edge of the frame by 47-oMJKM! L * 1 iia K 7
# -c, -by3 '-*-/ l- "1-it7 The periphery of the disk-shaped passive diaphragm 2 which penetrates
the through hole 9 in the direction of central axial force and forms the peripheral part in the
corrugated / yongonoji And the upper surface of the passive vibration @ 2: a speaker for sticking
the disk-shaped reinforcing plate 1 thereon. Reinforcing plate 1 (a disk made of a light metal
such as aluminum or a synthetic resin or rubber, and the passive diaphragm 2 is formed of a
flexible synthetic resin or rubber). Since the present invention is configured as described above,
the air vibration generated by the vibration of the drive diaphragm 3 propagates through the
through hole 9 and resonates with the air vibration, so that the disc-shaped passive diaphragm 2
is It vibrates and expands the bass range. According to the present invention, the area of the
buckle plate can be small, the capacity of the speaker box can be small, and the number of parts
is small, so the material cost can be small, which leads to shortening of the assembly man-hours.
Because the diaphragm is in the direction of the central axis of the diaphragm, the sound source
becomes a core ring and is a device with excellent resonance efficiency.
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