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JP2000324592

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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 JP2000324592
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a
speaker used in various audio and visual equipment.
[0002]
2. Description of the Related Art A conventional speaker will be described with reference to FIGS.
3 and 4. FIG. FIG. 3 is an exploded perspective view of a direct drive type magnetic shielding type
speaker, which is a type of elongated speaker, and FIG. 4 is a perspective view illustrating a
coupling state of a reinforcing rib and a damper which is the main part.
[0003]
According to the figure, 1 is an elongated vibrator having a reverse U-shaped short side and a
voice coil 1b wound with a coil 1c on the lower open end side and a U-shaped upper apex side as
the diaphragm 1a. A sheet of hard aluminum, paper, resin containing glass fiber, etc. is molded to
integrally form the diaphragm portion 1a and the voice coil portion 1b.
[0004]
Reference numeral 2 denotes an edge whose inner periphery is coupled to the outer periphery of
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1
the diaphragm portion 1 a of the oscillator 1 and which becomes a part of the oscillator 1 and
whose outer periphery is coupled to the top opening of the frame 3.
Reference numeral 7 denotes a damper for holding the vibrating body 1 via a plurality of
reinforcing ribs 8 which hold and hold the inside and outside of the inverted U-shaped vibrating
body 1 between the main body 8a and the arm 8b. The adhesive is adhered to the groove 7a
substantially at the center of the corrugation of the damper 7 and is connected to the lower side
of the frame 3 to hold the vibrating body 1 in a freely vibrating manner by the damper as
described above.
[0005]
The reference numeral 6 denotes a magnetic circuit in which a magnetic gap 6a is formed by the
yoke 4 and the magnet 5 disposed in the central recess of the frame 3. A plurality of gaps 6b in
which the reinforcing ribs 8 are disposed so that the magnetic circuit 6 does not contact, and a
plurality of the voices of the vibrating body 1 linearly disposed by the respective magnetic gaps
6a. The coil portion 1b is inserted. Reference numeral 9 denotes a gasket for clamping the edge 2
with the frame 3.
[0006]
In the speaker configured as described above, by applying an external audio signal to the coil 1c
of the voice coil portion 1b, the vibrating body 1 is moved up and down to vibrate the diaphragm
portion 1a to emit a sound wave.
[0007]
However, in the above-mentioned speaker, since the reinforcing rib 8 is placed on the groove 7a
at the top of the center of the damper 7 and bonded, the adhesive bond of the damper 7 and the
reinforcing rib 8 is bonded by an adhesive. The bonding portion is an end face of the reinforcing
rib 8, and the bonding area is extremely limited, and there is a possibility of debonding, and it is
difficult to move to the next step until the bonding is cured and dried, which has become a
productivity bottleneck.
[0008]
In addition, it has a problem that it is difficult to cope with future deep bass reproduction as a
speaker and high input resistance.
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2
[0009]
SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the speaker
according to the present invention comprises an elongated vibrator mounted at least at the top
opening of the frame, and a vibrator for holding the vibrator and having a slit. A plurality of
reinforcing ribs and a damper which is inserted into the slit and connected to the frame in the
vicinity of both ends are inserted, the damper is inserted into the slit provided in the reinforcing
rib and the damper is coupled to the frame As a result, the damper and the reinforcing rib have a
bonding strength capable of coping with the large amplitude of the vibrating body due to the
regeneration of the deep bass and the increase in the resistance to input as well as the possibility
of the detachment due to the adhesion failure being eliminated.
[0010]
According to a first aspect of the present invention, there is provided an elongated vibrator
mounted to at least an upper surface opening of a frame, and a plurality of reinforcements
holding the vibrator and provided with a slit. It consists of a rib and a damper which is inserted
into the slit and connected to the frame in the vicinity of both ends, and the damper is inserted
into the slit provided on the reinforcing rib so as to couple the damper to the frame As a result,
the damper and the reinforcing rib do not have the possibility of coming off due to adhesion
failure, and supply of a speaker with excellent performance by having a bonding strength that
can cope with the large amplitude of the vibrating body due to the regeneration of deep bass and
the high input resistance. To make it possible.
[0011]
Hereinafter, an embodiment of the speaker of the present invention will be described with
reference to FIGS. 1 and 2. FIG.
[0012]
In the description, the same parts as in the prior art will be assigned the same reference
numerals and explanations thereof will be omitted.
[0013]
FIG. 1 is an exploded perspective view of a direct drive type magnetic shielding type speaker
according to an embodiment of the speaker of the present invention, and FIG. 2 is a perspective
view for explaining a coupling state of a reinforcing rib and a damper which is the main part. .
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[0014]
The difference between the prior art and the prior art will be described with reference to the
figure. Reference numeral 8 denotes a reinforcing rib, which holds the inside and the outside of
the inverted U-shaped vibrating body 1 between the main body 8a and the arm 8b and holds a
slit near the lower end. 8c is provided.
A groove 7a at the top of the substantially central portion of the corrugation of the damper 7 is
inserted into the slit 8c and fitted therein, and is further firmly fixed by an adhesive.
[0015]
As described above, since the damper 7 is inserted into the slit 8 c of the reinforcing rib 8, it does
not come off, and it is possible to provide a speaker that can sufficiently cope with the input
resistance.
[0016]
As described above, according to the speaker of the present invention, the reinforcing rib is
provided with the slit and the damper is inserted into the slit. Therefore, the damper and the
reinforcing rib do not have a possibility of coming off due to poor adhesion and are heavy It has
a bonding strength that can cope with the increase in the amplitude of the vibrating body due to
the bass reproduction and the high input resistance.
[0017]
In addition, productivity can be significantly improved over conventional products because it is
not necessary to wait for complete curing of the adhesive even if stability of the bonding position
is achieved using the adhesive between the damper and the reinforcing rib It is.
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