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JPS4942697

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DESCRIPTION JPS4942697
■ Loudspeaker assembly device ■ Japanese Patent Application No. 45-93013 [phase]
Application No. 45 (1970) October 21 @ inventor Sawada Makoto-Kadoma City Daiji Kadoma
1006 Matsushita Electric Industrial Co., Ltd. Uchido Koji Office 0 Applicant Matsushita Electric
Appliances and Industry Co., Ltd. Kadoma City Oji Kadoma 1006 [Phase] Agent Attorney Nakao
Toshio 1 person
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional view showing an embodiment of a
speaker assembling apparatus of the present invention, and FIG. 2 is a bottom view thereof.
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a speaker
assembling apparatus for bonding a diaphragm to a speaker frame using a heat reactivated
adhesive. In general, a heat reactivated adhesive is often used to incorporate a diaphragm into a
frame. In this case, a heat reactivated adhesive is applied to the periphery of the diaphragm and
adhesively fixed to one frame. However, many of these adhesives are quick-drying, and if it is
intended to be applied, it is an adhesive. Is almost always solidified. Therefore, in the past, in the
pasting process, heating is performed using a ring-shaped heating member, but it takes time and
labor and productivity is poor. In addition, when the diaphragm or the frame is square or
semicircular, it is necessary to provide a heating body conforming to the shape, which is
extremely expensive in terms of equipment. The present invention eliminates the abovementioned conventional drawbacks. Hereinafter, the present invention will be described with
reference to the drawings of one embodiment. Reference numeral 1 denotes a pallet provided on
a conveyor. A frame 3 to which a field unit 2 is connected is attached to this par rl 11 111 Lunt
1. Disposed on the frame 3 is a diaphragm 5 having a thermally reactivated adhesive 4 applied to
the periphery. Then, a sprocket 6 is fixed to the lower part of the ballent 1 and this sprocket 6 is
engaged with the chain 11 driven by the sprockets 7.8, 9 and 10. In addition, pipe-shaped high
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frequency coils 12 are provided above and below the periphery of the frame 30 moved by a
conveyor. Therefore, even if the adhesive 4 applied to the peripheral edge of the diaphragm 50 is
solidified, it flows by the conveyor according to this apparatus (in the coating, the ball 1 is
rotated by the chain 11 and the sprocket 6 and the peripheral edge of the frame 30 is The
adhesive 4 is softened by heating and the diaphragm 5 can be adhered and fixed to the frame 3.
Since the sprocket 7 is provided on the arm 14 whose one end is stretched by the spring 13,
when the sprocket 6 first engages with the chain 11, the sprocket 7 escapes and the sprocket 6
engages with the chain 11. It will not be an obstacle. As described above, the speaker assembling
apparatus according to the present invention is provided with a pallet for attaching a frame to a
general transport body such as a conveyor, which is configured to be able to self-rotate the pallet,
and vibration is applied to the peripheral portion with a heat reactivating adhesive. Since a barlike high frequency coil for heating the peripheral portion of the frame on which the plate is
mounted is provided along the carrier, it can be heat bonded in any shape, and the equipment
cost is also low. It is a dog of industrial value that can be assembled with good productivity.
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