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BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of a coaxial two-way
speaker according to an embodiment of the present invention. A 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 a
center of the ball-3a и и и и и и и и и и и и и и и и и и и и back chamber , 4 ... axis.
DETAILED DESCRIPTION OF THE INVENTION The present invention is a two-way speaker with
coaxial quantity capable of waveform transmission. A two-way coaxial speaker is a kind of
composite speaker in which the reproduction band is divided, the optimum speaker is selected
for each band, and they are coaxially combined in order to achieve true fidelity. Because the
magnetic circuit, diaphragm, etc. can be separately configured although the shape is large, it is
possible to realize a good composite speaker through thinking separately about directivity
characteristics, high-pitched characteristics, output sound pressure etc. It will be. However, in the
conventional coaxial type 29 A speaker, since the positional relationship between the woofer and
the tweeter is fixed, the distance from the listening point to the sound source differs in each
speaker by ░ C. Therefore, the phase characteristic is nonlinear And the realization of faithful
waveform transmission was a nuisance. This device is intended to improve the above points, and
it is possible to move the tweeter back and forth, and the sound source position tIi 111! 1. A
coaxial type 29 eye speaker that enables 1 and matches the 4'L general time of the sound from
the sound source to the listening point over each speaker so that waveform transmission can be
realized faithfully It is intended to be provided. Hereinafter, one embodiment will be described
with reference to the drawings. The figure shows one side of the 2-way speaker, (4) the woofer
and (c) the tweeter. (1) is a frame in which a hole (la) is bored in the bottom, inside of which a
magnetic circuit (2) of an outer magnetic disk for woofer) is provided, and further, a center ball
of this magnetic circuit (2) Of the inner magnetic disk is provided as a pack chamber (2b) to
provide a single-passage path (3) of the inner magnetic disk for the tweeter (t). (4) is an axis for
adjusting the forward distance of the tweeter (t) with respect to the center ball (2a) K. This-(4)
can be fixed with a screw aI in a guide (2c) integrated with the magnetic circuit (2). Then, a
sound absorbing material (5) is provided between the tweeter (the weir and the center pole of the
woofer (6) so that abnormal noise does not occur in that portion, and the tweeter (t) A sound
absorbing material (7) such as glass wool is also applied to the outer periphery of the frame (6)
to prevent specific acoustic resonance and flatten sound pressure characteristics and phase
characteristics. In the frame (6) of the lie (R), a nonmagnetic material is opened so that the
leakage flux from the woofer (the magnetic circuit (2) of the station does not occur). (8;) is a
cylinder having an outer diameter smaller than the outer diameter of the center pole (2a) of the
woofer (6) by 1 to 2 degrees, whereby the above-mentioned sound absorbing material (7) The
center ball G of the woofer (6) while preventing entering the coil gap of 6).
Prevent acoustic resonance in the space between 0 and the frame (7) of the tweeter (t). That is,
this cylinder (81) also performs the same function as the function of the sound absorbing
material (7). In the above, at the assembly stage, the woo-hu (6) is magnetized, and the suction
force works when the tweeter (6) is assembled in ░ C, so that it becomes difficult to incorporate
the tweeter (t). Assembled 9: Look at the ILvc woofer (6) and the tweeter (b) simultaneously.
Since the woofer's magnetic circuit (2) is of the external magnet type and the tweeter's magnetic
circuit (3) is cRiIlffi, the center ball of woofer (t) and yoke of tweeter (t) are It can be made the
same in the direction of the swaying magnetic flux, and the tweezers are settled in the stable
state in the chamber (21) because of the solid, and the magnetic flux comes to be effectively
utilized. Is a network, a woofer) and a tweeter (a cross-over is set so that there is no phase
difference with respect to the 's as far as possible). From this, the tweeter can be moved in the
axial direction by this invention. The position relation with the woofer can be set to the optimum
state, and as a result, the transmission time I11 of the sound between the sound source and the
listening point can be matched between the respective speakers, and the phase characteristics
are excellent. What is it? One it is possible to achieve the realization of faithful waveform
transmission 4, drawings' 7) BRIEF DESCRIPTION OF THE FIGURES is a cross-sectional view of a
29 Rays speaker coaxial according to the present embodiment. (2)
иииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииии Magnetic circuit (3a) иииииииииииииии Center ball (3 b) ) и и и и и и Back
chamber (4) и и и и и и и Register shaft utility model. IflJli person Bionia Co., Ltd. agent ? ?; ?; W W
? и и ? и и "" (42. 8))) 6) Inventors other than the above or utility model registration applicants (1)
Inventors 4. . I ? 77, ?, 7 Saitama Prefecture Tokorozawa Flower Garden 4 chome address
2610 Toburo I Wakok 5 YOKUKA Address Bio = A Corporation Tokorozawa Plant Sakaaki Name
Sugawara Takashi Address Name Address Name Name IP: Place name (2) Utility model
registration Applicant address (location) name (name) representative address (location) name
(name) representative
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