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JPS51127030

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complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or
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DESCRIPTION JPS51127030
BRIEF DESCRIPTION OF THE DRAWINGS The first is a sectional view of a cone type speaker, FIG.
2 is a sectional view of the inventive beaker, FIG. 3 is a sectional view of a vibration system of the
inventive speaker, and FIG. Sectional drawing of the dome-shaped speaker of an Example. 29a is
a rising portion, 8 is a frame, and 29 is a damper. -69- Japanese Utility Model 51-] 27030 (2)
years old 3 figures + 4 figures 1 700 1
DETAILED DESCRIPTION OF THE INVENTION 1 The present invention relates to a speaker
structure which can be significantly shortened as much as production. In general, the structure of
the cone type speaker is as shown in FIG. センターポール2. フロントプレート3. The voice
coil bobbin 7 in which the voice coil 6 is wound around the magnetic gap 5 formed between the
front plate 3 and the center pole 2 of the magnetic circuit consisting of the back plate 4 etc. is
the same as the side wall of the center ball 2 and the inner wall of the center hole of the front
plate 3 The voice coil bobbin 7 is disposed so as to be vertically oscillated 2 by a damper 9 fixed
to the frame 8 or the front plate 3 at a periphery thereof. The upper end of the voice coil bobbin
7 is fixed to the periphery of the central hole of the cone diaphragm 10, and the periphery of the
cone diaphragm 10 is fixed to the open end of the frame 8. In order to assemble a speaker
having such a structure, after assembling a magnetic circuit, a voice coil voice-1 is inserted into
the magnetic gap 5 and the voice coil 1 = 1 J 6 is wound along the outer peripheral surface
thereof. The voice coil bobbin 7 is inserted and the voice coil 6 is disposed at the center of the
magnetic gap. Next, the periphery of the central hole of the damper 9 is inserted into the voice
coil bobbin 7 to bond the both together and to bond the outer periphery of the damper 9 to the
frame 8 or the front plate 2. Further, the peripheral portion of the central hole of the cone
diaphragm 1o is inserted and bonded to the upper end of the voice coil bobbin 7, and the outer
peripheral portion of the cone diaphragm 10 is bonded to the open end of the frame 8. After that,
the adhesive is dried and the voice coil 711 is removed and completed. As in the case of three or
more, the process q of the conventional cone-shaped speaker assembly is (1) assembly of
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magnetic circuit, (2) insertion of voice coil gauge 11, (3) insertion of voice coil bobbin 7 into
voice coil gauge 11! , (4) Insert the damper 9 into the voice coil bobbin 7 and bond the central
hole riverside and the outer peripheral part, (5) insert the cone diaphragm 10 into the end of the
voice coil bobbin 7F and bond the central hole open side and the outer peripheral edge , (6) It
consists of the process of removing the gauge after drying. The present invention is a speaker
structure in which the process is shortened by changing the shape of the damper to make it
possible to bond integrally the "" damper, the voice coil bobbin and the cone diaphragm by the
preliminary processing. The invention will now be described in greater detail with reference to
the embodiments of FIGS. 2 and 3. The damper 29 of the speaker according to the present
invention has a shape in which the outer peripheral portion 29a rises up to the opening edge of
the frame 8.
Tamper 29 of such a shape is a voice coil bobbin 7ii ui in which a voice coil is wound around the
open end of the central hole, and the outermost peripheral end of the binary 41 and the rising
portion 29a is the open end edge of the frame 8 Together with the outer peripheral part of the
cone diaphragm 10, it is adhered. :. 0-like f, g, '7t 429 or Yes, 1-car. In the pre-processing stage,
the peripheral portion around the central hole of the damper 29 ′ ′ ′ and the peripheral
portion around the central hole of the cone diaphragm 10 are bonded to the voice coil bobbin 7
wound with the voice coil ζ6- \ The outer portion and the outermost portion of the standing
portion 29a of the damper 29 are bonded. After drying each bonding portion, the voice coil
hovin 7 is inserted through the voice coil hobin 11 inserted into the magnetic gap 5, and the
rising portion 29a outermost portion of the cone diaphragm 10 and the damper 29 integrally
bonded. The frame 8 is bonded to the open end and after drying, the voice coil gauge 11 is
removed and completed. As described above, the structure of the speaker according to the
present invention is the cone diaphragm 10. Since the Tamper-29 and the voice coil bobbin 7 can
only be bonded together in advance, they can be dried in a short time, and the process of the
production line can be remarkably shortened by 5 and magnetic circuit parts including the frame
It is possible to improve the production efficiency by assembling the vibration system parts from
the process in which the assembly of the vibration system parts is simultaneously performed in
parallel, and assembling the parts of the last phase together to improve the production efficiency.
Since the adhesive at the bonding portion with the cone diaphragm 10 and the cone diaphragm
10 is incorporated in the frame 8 in a completely dry state, it flows into the adhesive or magnetic
gap 5 in the blood attachment portion to function as a speaker. It is possible to completely
prevent the occurrence of defects caused by stopping and to provide a large amount of stable
quality. When the present invention is used not only for the cone type speaker but also for the
dome type speaker as shown in FIG. 4, it acts as a double damper and effectively suppresses the
generation of the low link etc. of the voice coil bobbin) 6
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