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JPS55165594

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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 JPS55165594
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of a speaker using a
neck ring, FIG. 2 is an enlarged view of a bonding (joining) portion between a neck ring and a
bobbin and a diaphragm, and FIG. One embodiment of the invention A cross-sectional view of a
neck ring, FIG. 4 is a surface view of the configuration of FIG. 3, and FIGS. 5-8 are surface views
of another embodiment neck ring. 1 ииииии Magnetic circuit, 2 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 и и и и и и и и
и и и и и и и и и и и и и и и voice coil, "и и ..... voice coil bobbin, 7 ...... neck ring, 8 ...... vibration plate, 9 ......
adhesive, 10 ... ... bubbles, 11 ... иииииииииииииииииииииииииииииииииииииииииииииииииииииииииииии Small groove.
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a loudspeaker,
and more particularly to a loudspeaker having an improved neck ring between a voice coil
bobbin and a diaphragm. Conventionally, in the speaker, as shown in FIG. 1, a tubular neck ring
is fixedly provided between the voice coil bobbin 6 and the diaphragm 8. The purpose is to insert
a ring made of an elastic material such as rubber, 'j, or an end as a mechanical filter for the
purpose of cutting off the area resonance, or conversely, the connection portion between the
voice coil bobbin 6 and the diaphragm 8 In some cases, a rigid ring is used to increase the
rigidity of the FIG. 2 is an enlarged view of this joint portion, but conventionally, an adhesive
resin 9 of epoxy resin type or rubber type is used for coupling the voice coil bobbin 6 with the
neck ring 7 and the diaphragm 8. The neck ring 7 is generally cylindrical, and needs an
appropriate height to satisfy the above-mentioned, and generally, for example, when the neck
ring 7 and the voice coil bobbin 6 are coupled as shown in FIG. There is a method of applying the
upper 1tC adhesive 9 on both bonding points and letting it flow down naturally or permeating
VC on the inner and outer surfaces of the ring using capillary action and coating it on the whole
bonding portion. However, in this method, if the gap between the neck ring and the voice coil
hobin 6 is not appropriate, there is a defect that the air bubble 10 enters and the adhesive 9
flows too much and the uniform bond (contacting layer) is not small. . 2.) The present invention
eliminates the drawbacks of the prior art described above and uses an improved neck ring 7 to
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facilitate and complete the bonding of the neck ring 7 to the voice coil bump 76 and the
diaphragm 8. To provide a speaker. In order to achieve the above object, the present invention
controls the application amount of the adhesive 9, and the inner and outer surfaces of the neck
ring 7 so that the adhesive 9 penetrates uniformly on the inner and outer surfaces of the neck
ring where it is bonded. A notch 11 such as an upper end KV or U is provided. As a result, the
application amount and the application position of the adhesive 9 are made constant. Further, the
grooves communicate with each other, and a plurality of grooves 9 of adhesive 9 are provided on
the inner and outer surfaces of the neck ring from the upper end to the lower end. More
desirably, small grooves for venting air are formed in communication from the grooves 11
toward the lower end of the ring. Hereinafter, the present invention will be described based on
the illustrated embodiment. The neck ring according to the first embodiment has a cross section
as shown in FIG. 3 and a surface as shown in FIG. 4 and has a ditch for adjusting the application
amount of the adhesive 9. Notches 11 are formed on the upper and lower inner and outer
surfaces of the ring 7, respectively.
In addition, U-shaped or V-shaped longitudinal grooves 12 and lateral grooves 12 'are provided
in the vertical and horizontal directions for the flow penetration of the adhesive 9. That is, when
the adhesive 9 is applied to the notches 11Vc provided on the inner and outer surfaces of the
neck ring 7, the adhesive 9 flows along the grooves 12 and 12 'communicated from these
notches 11, and the adhesive surface is the inner and outer surface of the non-groove ring. To
penetrate. Also, when air bubbles enter into the bonding (bonding) surface, they are pushed out
along the small groove 13. The small groove 13 is sized in consideration of the viscosity of the
adhesive so that the adhesive does not flow out except at the bonding point. Furthermore, the
adhesive 9 has a reaction fM! It is better to use (for example, epoxy resin etc.). This is applied in a
specified amount to the notch 11 for the reservoir groove, warmed by a dryer, or put in a
temperature bath, and the adhesive 9 penetrates along the groove 12, 12 'VC and uniform
adhesion can be achieved, resulting in adhesion strength The wolf also climbs. The 5th
regression -4, Il +:,; 65-, '-4 is the basic form which simplified this invention, and the adhesive 9 is
applied to the notch 11 and V-shaped from the upper end of the ring along # 12 It flows to the
lower end and penetrates the ring surface (also the inner and outer surfaces) between the
grooves 12. The small groove 16 is for preventing the adhesive 9 from flowing out of the neck
ring 7, and it is sufficient that the small groove 16 has such a size that only air is exhausted. 6 to
8 show another modification of the present invention, wherein the configuration F of FIG. 6 is
formed by forming an iV-shaped groove in an angle, and the configuration of FIG. 7 meanders the
U-shaped groove 12 In the structure of FIG. 8, U-shaped grooves are formed so as to cross each
other. According to the present invention, uniform bonding can be performed between the neck
ring 7 and the diaphragm 8 and the voice coil hobin 6, and the reliability as a speaker unit can be
improved.
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