JPS568400

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DESCRIPTION JPS568400
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows a front view of a frame, and FIG. 2-FIG. 2
correspond to FIG. 1-- line. FIG. 1 shows an embodiment of a coaxial flat diaphragm type speaker
unit according to the present invention. FIG. 6 is an enlarged side cross-sectional view of the
speaker unit. 1 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ·
· · · · central frame, 15 ...... connecting arm, 2 ...... edge base, 3 ...... bass portion of the diaphragm, 4
...... mid section diaphragm.
The present invention relates to a coaxial flat diaphragm type speaker unit, and more particularly
to a coaxial flat diaphragm type subwoofer ENIT having at least an edge base used by two
diaphragms. The flat diaphragm can achieve relatively flat sound pressure characteristics over
the entire frequency range, and can recognize features such as the ability to enjoy a rearrangement sound due to stable sound quality, and a speaker system using this is provided.一
one no l-,? It came to be with 7a. A characteristic of the speaker system using a flat diaphragm is
that movement of the sound image is extremely small, but if it is configured in a coaxial type
array, one with less movement of the sound image can be obtained. However, when the flat
diaphragms are coaxially arranged, the flat diaphragms are positioned on the same plane to
obtain an ideal sound image, but the spaces behind the respective diaphragms may be in a
common state and interfere with each other, In addition, an edge base for fixing the edge of the
edge as a diaphragm of the diaphragm is necessary at the inside and outside edge of each
diaphragm, and the structure itself becomes quite complicated. Therefore, this invention aims to
simplify the structure and to prevent interference in the space behind the diaphragm. Therefore,
at least, the edge base of the diaphragm of the low sound part and the diaphragm of the middle
sound part should be used at the same time The edge base is configured to divide the space
behind the low-pitched portion diaphragm and the mid-tone portion vibrating plate. Hereinafter,
the present invention will be described with reference to the attached drawings. In the figure,
reference numeral I is a frame constituting the sub-cabinet unit 1 ° '-'- to, outer peripheral frame
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// 1 inner peripheral frame / 2, connecting arm / J1 j-di connecting these, inner side of inner
peripheral frame saw There is a center frame / 4 ', which is connected to the inner frame frame
by a connection arm 15 in the form of a parallel cross. The connection arm 13 is connected to an
inner peripheral frame / co-KV type peak portion and is connected to the other end end outer
peripheral frame l /, and is provided for each power transmission of the frame. On the front side
of the inner peripheral frame saw, an edge base 2 having an end face at the same level as the
front surface level of the edge groove // a provided on the inner peripheral edge of the outer
peripheral frame / 1 is fixed. Is a long block type having a side surface parallel to the outer
peripheral frame saw, and the space behind the diaphragm J of the bass portion supported via
the edge 3111 bt between the outer base frame // and the end base 1 of the inner peripheral
frame 12 And, it has a function to divide the space behind the shooting board of the middle
sound section supported between the inner frame frame's edge base and the center frame / 4L
between the center frame / 4L and the center frame / 4L.
Furthermore, the edge 3b inside the diaphragm 3 and the edge a of the outer cylinder of the
outer cylinder of the vibration and f ′ ′ plate are fixed to the edge base that is fixed to the
inner peripheral frame / c. Moving plate 3. Commonly supports one edge of ginseng. Since the
coaxial flat diaphragm type sublayer of the device of the invention is as described above, the
edge Jb and the junction are common to the inside of the diaphragm J of the bass part and the
outside of the diaphragm gauze of the middle mass part. It can be supported by a, and the edge
base is simplified, and the edge base further divides the space behind the diaphragm J and the
diaphragm gauze. As apparent from the above description, according to the coaxial flat
diaphragm type speaker unit of the present invention, the inside of the diaphragm of the bass
part and the outside of the diaphragm of the middle sound part are supported by a single edge
base. Since this edge base separates the space behind the two diaphragms and makes them
independent, there is no direct interference behind the diaphragms, and it is possible to expect
cost reduction due to the simplification of the structure.
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