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JPS55159694

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Notice
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
financial decisions, should not be based on machine-translation output.
DESCRIPTION JPS55159694
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional view of a speaker, and FIG. 2 is an
exploded sectional view of the same. 5 is a damper, 6 is a diaphragm, 2 is a coil bobbin. .
DETAILED DESCRIPTION OF THE INVENTION The purpose of this invention is to speed up the
process of assembling the speaker. The purpose of the invention is to achieve the above object by
bonding the parts using an ultraviolet-curable adhesive. Referring to FIG. 1, the general structure
of the speaker will be described with reference to FIG. 1. ▪ indicates an external magnetic circuit
consisting of a plate, a ball and a macnet, and in the magnetic gap formed by the pole and plate
of the magnetic circuit l. A voice coil 3 wound around a coil povin 2 is disposed, and the coil
povin 2 is resiliently supported by a rim 4 fixed to the frame 4 or the plate. /り? The base of
the diaphragm 6 is fixed to the upper end surface of the coil bobbin 2 and the outer periphery of
the diaphragm 6 is an edge 7 of the opening edge of the frame 4 fixed to the magnetic circuit l. It
is fixed via Reference numeral 8 is a dustproof cap which covers the upper end opening of the
coil hobin 2, and the following steps are taken to assemble a speaker of such a configuration. (1)
Fix the frame 4 to the magnetic circuit 1 and the magnetic circuit 1 by means such as adhesive or
electric welding (2) Insert the voice coil gauge 10 into the magnetic gap of the magnetic circuit 1
and outside the voice coil gauge 10 The coil bobbin 2 in which the voice coil 3 is wound is
disposed along the surface to be measured. (, ()) Bond the outer peripheral edge of the damper 5
and the plate, and the inner setting edge and the coil hobin 2 respectively. (4) The top of the
diaphragm 6 and the upper end of the coil hobin are attached to the opening edge of the frame 4
through the edge 7 and the outer edge of the coil hobin is attached to the edge of the frame 4.
(6) After the adhesive of each bonding portion is cured, the voice coil cage 10 is removed and the
dustproof cap 8 is bonded to complete. (Note that the electrical wiring process is attached in the
above assembly 1 but the explanation is omitted because it is related to the main cutting, and the
explanation is two-force stop.) In such an assembly process, the tamper 5 and the coil bolt 2 and
the diaphragm 6 The adhesive of rubber thread is used as the adhesive for each of the adhesive
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parts of the film, the coil 5 and the tamper 5 and the plate, the diaphragm 6 and the frame, but
as the rubber adhesive is well known, Have a similar moat. That is, the adhesive of the comb yarn
has a long time to cure because it hardens by volatilization of the solvent contained therein. For
example, it takes about 12 hours or more until the mobile handling qJ capable of curing state to
cure fully after about 12 hours; Even if it is intended to shorten the curing time 4 by forced
heating and drying, it has a long time (for example, 3 to 6 hours in 60 ° C.) and the productivity
is very poor, and it is difficult to dry it. Requires space, and additionally requires a dry / dry table
device.
In addition, since the organic solvents which volatilize are harmful to the human body, they
require a ventilating apparatus, etc., and in addition to the above-mentioned disadvantages, it is
necessary to spend a great deal of money on the equipment. In order to solve the disadvantages
of this kind of rubber thread adhesive, it is a UV curable adhesive that cures by irradiation of
ultraviolet light, or a point where curing time is long and there is no harmful volatile component.
It has attracted attention as an adhesive. As such an adhesive, for example, urethane group
having a vinyl group, and lyrino crecine (CH2 = CHX-0-R) as a main agent, and the radical
Togane initiated by light, 堵 1 photo 1) is Therefore, this invention is characterized in that the
above-mentioned UV curable adhesive is used as an adhesive for each part of II, and will be
described in detail along with its assembly process. 5 (1) Fix the frame 4 to the magnetic circuit 1
and the magnetic circuit 1 by means such as adhesive or electric welding (2) Insert the voice coil
gauge lOe into the magnetic gap of the magnetic circuit l The coil bobbin 2 in which the voice
coil 3 is wound is disposed along the outside 01li 而. (3) A UV curable adhesive is applied to the
portion of the plate where the outer inner edge of the tamper 5 is to be placed, and the coil
bobbin 2 is pushed through the center hole of the tamper 5 to self-identify at a predetermined
position. Then, an ultraviolet curing adhesive is applied to the joint portion of the tamper-5 and
the coil bobbin 2, and ultraviolet rays are irradiated from above the opening of the frame 4. (4)
Place a sticky adhesive film on the outer edge of the frame 4 and insert the top corner of the
diaphragm 6 into the coil pole 72, and move the diaphragm 6 (the diaphragm 6) The outer
circumference of the diaphragm 4 is adhered to the frame 4, and the arrow paper 9 to which the
adhesive adhesive film is adhered is attached to the upper surface of the outer circumference of
the diaphragm 6. iL。 6 (5) Fill the gap between the coil bow Hin 2 and the top corner of the
diaphragm 6 with a UV curable adhesive. (6) The ultraviolet light is irradiated from above the
opening of the frame 4. (About 2 minutes with a 600 W mercury lamp from above 15 G) (7)
Remove the voice coil gauge IO and attach the dustproof cap 8. Thus, the speaker according to
the present invention is completed with the adhesive cured in about 5 minutes to 7 minutes
including UV irradiation time of about 4 minutes and other incidental work. be able to. In
addition, since the present invention does not use an adhesive that includes an organic solvent
such as a rubber thread adhesive, it does not use a ventilating device etc., and the adhesive
curing time is extremely fast, as in the prior art. There is a very effective advantage that
equipment cost can be reduced because the large dry / purulent space or dry / taste apparatus is
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not at all cost, and the cost-span of the product can be measured.
Thus, as the ultraviolet 7-ray curable adhesive used in this invention, curing occurs or radical
reaction (chain reaction) occurs as in the case of urethane acrylic resin having a functional group
of vinyl type as described above, and it is anaerobic Most preferred is of the type having the
property (the property of curing when the air is shut off).
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