JPS61108298A - Manufacture of speaker - Google Patents

Abstract

PURPOSE:To remove a hard work and to manufacture a speaker easily and correctly by two-point supporting and positioning with a positioning supporting jig and a damper mounting to the prescribed position a voice coil bobbin part and a coupler part which goes to a single body, thereafter, remove a cylindrical type positioning jig and fitting a flat plate diaphragm part to the coupler part. CONSTITUTION:A frame 4 fitting a magnetic circuit part is mounted to a supporting body 30 so that the four angle parts may be hung on a frame fitting groove 31 of the supporting body 30. Next, a cylindrical type positioning jig 6 is inserted into the voice coil bobbin part 1, and the voice coil bobbin part 1 is stored in the prescribed position in a gap G in the magnetic circuit part. In such a condition, the central opening part of a damper 7 is passed through the voice coil bobbin part 1, the opening part of the damper 7 and the outer periphery part of the voice coil bobbin part 1 are stuck with the adhesives and the outer periphery part of the damper 7 is stuck to a bottom plate part 14 of the frame 4. For the bobbin part 1 positioned by the cylindrical type positioning jig 6 automatically, the coupler part 8 is centered and stored in the suitable position.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a manufacturing method using a jig for positioning and supporting a speaker having a flat diaphragm.

[Conventional technology]

A method of manufacturing a speaker device having a cone-shaped diaphragm and a flat diaphragm with a hole in the center for extracting a voice coil bobbin positioning jig was as follows. First, a voice coil bobbin is inserted into the center core of the magnetic circuit section of the speaker using a positioning jig. This positioning jig has a cylindrical shape as a whole, and its thin cylindrical part is inserted into the center core, and the voice coil bobbin is fitted and supported on the outer periphery of the center core.
The center core is positioned in the vertical direction so that the central axes of the center core and the voice coil bobbin coincide, and the gap between the center core and the voice coil bobbin is kept constant. Then, a damper is attached to the voice coil bobbin supported by this positioning jig, and a diaphragm is attached to the tenth end of the voice coil bobbin via a coupler or directly, and between the outer periphery of the diaphragm and the frame of the speaker. It is easy to manufacture by installing the elastic edge, solidifying the adhesive and structurally solidifying it, and then removing the positioning jig from the voice coil bobbin through the jig removal hole in the diaphragm. be.

However, in speakers with a flat diaphragm, if a large jig removal hole that is approximately the same shape as the voice coil bobbin is drilled in the flat diaphragm, not only will the strength of the flat diaphragm itself become weaker, but the effective area In addition, by attaching a cap to prevent dirt from entering through the jig removal hole, there is an unavoidable drawback that the characteristics of the flat speaker, which has a wide piston vibration band and excellent acoustic characteristics, are impaired.

Therefore, a method for assembling a speaker has been proposed in Japanese Patent Application Laid-open No. 59-16496 (Japanese Patent Application No. 57-126346).

That is, as shown in FIGS. 5 to 8, the voice coil bobbin section (11) is fixed to the voice coil bobbin section (11) through the collar section (2), which is an oval plate with a circular insertion hole.

A pair of rectangular bar-shaped positioning and supporting jigs (3) are also prepared, and the speaker frame (4) is provided with a mounting portion (5) on which each positioning and supporting jig (3) is placed.

Then, the cylindrical positioning jig (6) is fitted into the voice coil bobbin portion +11 and into the center core of the magnetic circuit. In this state, the damper (
7), and then attach the positioning support jig (3) to the mounting part (4) of the frame (4) as shown by the dashed line in Figure 7.
5), and the positioning and supporting jig (3) supports the collar part (2) from below to position and support the voice coil bobbin part +11, as shown by the dashed line in FIG.

In this state, the voice coil bobbin section +11 is connected to the damper (
7) and the positioning support via the flange (2)! L(3
It is supported at a predetermined position with two-point support by 1.

Therefore, the cylindrical positioning jig (6) is removed, and a flat plate diaphragm (9) with no holes, which is sub-assembled with the coupler part (8), is placed on the top of the voice coil bobbin part (1).

Then, the outer periphery of this flat plate diaphragm (9) is formed into an elastic edge i1.
1, it lands on the -F end of the speaker frame (4).

In this state, the voice coil bobbin part (1), coupler part (8), and flat plate diaphragm (9), which are formed in one body, are in a predetermined position with two-point support by the damper (7) and the elastic edge a. Since the pair of positioning and supporting jigs (3) are no longer needed, they can be removed to complete the speaker.

[Problem that the invention seeks to solve]

- The manufacturing method described above involves the difficult task of subassembling the coupler on the flat plate diaphragm at an appropriate +I- position where the coupler and voice coil bobbin can be combined later. On the other hand, it is difficult to manufacture a flat diaphragm with a vertical surface, and the yield of the product is low! This has the disadvantage of reducing productivity and workability.

Furthermore, there is also the disadvantage that a member unrelated to the original function, such as a flange, must be attached to the voice coil bobbin.

In view of the above-mentioned points, the present invention can be easily and accurately manufactured without attaching any special positioning member and without the difficult work of subassembling the coupler to the flat diaphragm. The purpose of the present invention is to provide a method for manufacturing a speaker.

[Means for solving problems]

In the speaker manufacturing method of the present invention, a voice coil bobbin section is positioned and inserted into the center core of a magnetic circuit section using a cylindrical positioning jig, and then a damper is attached to and supported by the voice coil bobbin section. Next, a positioning support jig placed at a predetermined position by a support attached to the speaker frame is used to set the upper end surface of the coupler section, on which the flat plate diaphragm is attached, at a predetermined angle Ml perpendicular to the center line of the voice coil bobbin section. The present invention is characterized in that a flat diaphragm is attached to the upper end surface of the coupler part with the coupler part supported in position, and the flat diaphragm is attached to the speaker frame with an elastic edge to complete the speaker.

[Effect]

According to the speaker manufacturing method described above, during the speaker manufacturing process, the positioning support jig placed on the support that supports the coupler unit works together with the damper to move the voice coil bobbin unit and the coupler unit together. It has the function of supporting at two points and maintaining its proper position.

〔Example〕

Hereinafter, embodiments of the speaker device of the present invention will be described with reference to FIGS. 1A to 4. Note that in FIGS. 1A to 4, parts corresponding to those in FIGS. 5 to 8 are given the same reference numerals for convenience of explanation.

Figures 1 and 2 are different from the first embodiment of the present invention, and this embodiment has a jig mounting portion (5) mounted on the speaker frame (4).
) without providing a frame (4) and a pair of positioning support fixtures! A support body (30
).

The support body (30) used in this example has a cylindrical shape with a diameter as large as that of the speaker, and four shallow rectangular speaker frame fitting grooves (31) are bored at predetermined positions at the lower end of the support body (30). In addition, four deep rectangular positioning support jig fitting grooves (32) are bored.

The positioning support jig (3) also has a coupler support part (3a) at the center, a mooring part (3b) of the coupler support part (3a), and grip parts (3C) at both ends. Consists of.

This coupler support part (3a) is connected to the circle ki of the coupler part (8).
(This is a semi-circular conical slope facing F toward the center corresponding to the slope, and as shown in Figure 2, the coupler support part (3a) of the pair of positioning support jigs (3) is It is constructed so that it can be supported so as to surround the conical surface of the coupler portion (8) from an image perspective.

Further, the mooring portion (3b) is provided with a U-shaped notch (33) that fits into the jig fitting '1m (31) of the support (30).

Further, the bottom surface of the mooring portion (3b) is formed to be a plane at the reference height of the jig.

In addition, the speaker frame (4) is constructed by bending four support plates (15) diagonally to one side and standing upright from the circular bottom plate (14) to which the magnetic circuit is attached, and on top of which is a flat diaphragm plate. (
9) A rectangular frame portion (16) is formed to which the portion is attached.

Further, (20) is an annular plate, (21) is an annular magnet, and (22) is a yoke plate, with a cylindrical yoke (23) protruding from the center thereof.

In addition, the voice coil bobbin section (11 has a voice coil (
24) is wound and a damper (7) is attached.

The coupler portion (8) is formed by forming a thin metal plate into a truncated conical shape.

The flat plate diaphragm (9) part is made of honeycomb core material formed into a rectangular shape, and a rectangular frame-shaped elastic edge (II) is attached to the outer periphery of the honeycomb core material.
Furthermore, an 11-shaped support frame (24) is attached to the stratum corneum of this 4@sexual camphor tree.

(25) is the conventional speaker's li! This is a cylindrical positioning jig used for I-building. (26) is a rectangular flat root-shaped mark used for manufacturing work, and a circular hole (27) is provided in the center thereof, which is larger than the outer diameter of the voice coil bobbin part (1) and smaller than the maximum diameter of the coupler. It is something.

Next, the method for manufacturing the speaker of the present invention will be explained step by step.

First, as shown in Figure 1A, the bottom plate part of the frame (4) (
14), a plate (20), a magnet (21) and a cork play plate 1- (22) are attached to constitute a magnetic circuit section.

Then, the frame (4) to which this magnetic circuit section is attached is placed on the support (30) so that its four corners are hooked into the frame fitting grooves (31) of the support (30).

Next, the cylindrical positioning jig (6) is inserted into the voice coil bobbin portion (1). Then, the cylindrical inner space of the cylindrical positioning jig (6) is fitted into the yoke (23), and the voice coil bobbin portion +11 is placed in a fixed position within the gear G that is connected to the magnetic circuit portion.

Furthermore, in this state, the center opening of the damper (7) is voiced:
Ill bobbin section (116: Ill, this damper [
7) and the outer periphery of the voice coil bobbin section (1) are attached with adhesive, and the outer periphery of the damper (7) is attached to the bottom plate section (14) of the frame (4).

Next, as shown in FIG. 1B, the operator holds the grip part (3c) of the positioning support jig (3) and inserts the positioning support jig (3) into the jig fitting groove (32) of the support (30). Place the jig (3).

That is, from one jig fitting groove (32) to the frame (4
) between the support plates (15) of the other jig fitting groove (32
), and each U-shaped notch te 33) is inserted into the jig fitting groove (
32) so that it fits on the side of the positioning support jig (
3) is placed on the bottom surface of the jig fitting groove (32).

In addition, the positioning support jig (3) has a jig fitting groove (32).
The pair of positioning and supporting jigs (3
) are kept close to each other within play range. In addition, according to the configuration in which play is provided between the positioning support jig (3) and the mooring part (3h), manufacturing tolerances of the support body (30) and the positioning support jig (3) themselves can be absorbed. The mooring part (3b) of the jig does not require a means for correcting its accuracy, and there is no need to firmly fit the mooring part (3b) of the jig into the jig fitting groove (32) of the support (30). 3h) will not wear out,
The maintenance of the jig itself can be reduced.

Next, as shown in FIG. 1C, the coupler part (8) is attached to the voice coil bobbin part +11.
) on the coupler support part (3a), and align the position so that the negative end cylindrical part (8a) of this coupler part (8) can be inserted into the voice coil bobbin part +11. Then, place 26) heavily on this coupler part (8) 1-.

Then, due to the weight of this heavy weight 26), the turnip part (8)
The diagonal stratum supports the riverside positioning! t (31) while sliding down the slope of the coupler support part (3a), inserting it into the voice coil bobbin part (1), and moving the pair of positioning support jigs (3) so as to spread them out laterally. The coupler part (8) is automatically centered with respect to the voice coil bobbin part (1) positioned by the cylindrical positioning jig (61) and is placed in the proper γ position.

In this state, insert the circular hole (27) of 26) into the inner periphery F part of the coupler part (8) and the voice coil bobbin part (1).
Attach one end with adhesive.

In this way, coupler part (8) and voice coil bobbin part (1
) are attached to the damper (7).
), a pair of positioning support jigs (3) placed on the support body (30), and a cylindrical positioning jig (6). Therefore, the cylindrical positioning jig (6) is removed from the cylinder of the voice coil bobbin portion +11 while maintaining the proper position.

The coupler part (8) and voice coil bobbin part Tll, which are integrated in this way, are connected to the damper (7) and the support body (30).
) and a pair of positioning support jigs (3) placed on the
In the state of point support, the damper (7) can prevent the position from shifting in the horizontal direction, the positioning support jig (3) does not move in the vertical direction, and the coupler part (8)
Since the slopes of the coupler support portions (3a) of the pair of positioning support jigs (3) are supported from below so as to touch the slopes thereof, displacement in the vertical direction can be restricted.

Furthermore, if the integrated coupler section (8) and voice coil bobbin section (1) tend to tilt, the damper (7)
The coupler part (
8) and the positioning support jig (3) that supports it must be shifted in the vertical direction, but as mentioned above, the position is regulated so that it does not shift in the vertical direction, so It can be supported in an appropriate position.

Next, remove 26) from above the coupler part (8), place the flat plate diaphragm (9) part on the coupler part (8)-H,
On top of this, place the heavy weight 26) that was used earlier, align the rectangular support frame (24) on the outer periphery of the elastic edge 0 (11) with the rectangular frame part (16) of the frame (4), and adhere both of them. Then remove Kurashiku 26). Here, the voice coil bobbin section +11, the turnip lBtg+
Since the flat plate diaphragm +91 is supported at three points: the damper (7), the elastic edge aψ, and a pair of positioning support jigs (3), the operator must use each positioning and support jig (3).
) from the jig placement part of the frame (4), and the voice coil bobbin part +11, coupler part (8) and flat plate diaphragm (9) which are integrally constructed as shown in Fig. 1C are fitted. It is manufactured so that it can move up and down within the elastic range of the damper (7) and the elastic edge i11 while maintaining the stop position.

Note that the cylindrical positioning jig (6) that was used to position the voice coil bobbin section (1) was used before removing the flat diaphragm (9). ! Since it has already been extracted during the manufacturing process, a hole for extracting the jig is provided in the flat diaphragm (9).
Moreover, since the slope of the coupler part (8) is supported by the pair of positioning and supporting jigs (3), the voice coil bobbin part (1) does not require any other special parts such as a collar.

Furthermore, it is also possible to manufacture a speaker in which the jig mounting portion (5) for the positioning support jig (3) is not provided on the speaker frame (4).

In addition, there is no need to perform the difficult sub-assembly of the coupler part (8) to the flat plate frequency (9), and the work can proceed smoothly, which increases productivity and improves product yield. It is possible to provide IM with inexpensive products.

In addition, in the first embodiment described above, the voice ml bobbin part il+ and the coupler part (8) are formed as separate parts, but even if these are formed inside the body from the beginning, this is also true. Example positioning support 1. ? jig (3
).

In this case, the voice coil bobbin part (1) in which the coupler part (8) is integrally formed is shaped into a cylindrical shape.
(fits into the yoke (23) via the tg, and the damper (7)
The work up to pasting the voice coil bobbin portion Tll and the frame (4) is the same as in the above-mentioned embodiment.

Next, the pair of positioning support jigs (3) are attached to the support body (30
) in the jig fitting groove (32) of the coupler support part (
3a) is lightly pressed along one circumference of the slope of the positioned coupler portion (8). In this state, the positioning support jig (3) and the cylindrical positioning jig (26)
This cylindrical positioning jig (6
).

After that, IIt handling motion (9 ) portion, removing the positioning support jig (3), and constructing it are the same as in the first embodiment described above.

Next, a second embodiment of the present invention will be explained with reference to FIGS. 3A to 4.

In this example, the jig mounting part (5) is mounted on the speaker frame (4).
A pair of supports (3) suspended from the frame (4) without
(1) is a manufacturing method in which a frame (4) and a pair of positioning support jigs (3) are relatively positioned.

The pair of supports (30) used in this example are each formed into a generally U-shape, and are provided with anchoring branches (35) so as to be folded back toward the C from both free ends thereof. . Furthermore, this anchoring branch (35) and the support body (30
) is provided with an escape groove (36) of a predetermined length.

In addition, a rectangular abutment part (37) formed one step higher in a rectangular shape is provided in the lower central part of the support body (30), and two grooves are bored in each part of the upper surface of the support part (37), thereby forming small rectangular protrusions. A locking protrusion (38) having a shape is provided.

In addition, trapezoidal positioning protrusions (39) are provided protruding from both central lateral surfaces of the support (30) on the toe side.

In addition, the positioning support jig (3) used in this example is
The coupler support part (3a) in the center and the coupler support part (3a)
The carnal mooring part (3h) of 3a) and the grip parts (3h) at both ends.
c).

This coupler support part (3a) is connected to the inner needle of the coupler part (8).
A semi-circular conical slope facing downward toward the center corresponding to the slope is formed, and as shown in Fig. 4, the coupler support part (3a) of the pair of positioning support jigs (3) is The circle M1 of the coupler part (8) faces towards the side. ...It is structured so that it can support 1 as seen from the flesh.

In addition, the mooring part (3b) has a speaker frame (4).
An elliptical through hole (40) for loosely fitting into the locking protrusion (38) of a pair of supports (30) suspended from the U-shaped hole (40) and a U-shape for loosely fitting into the rectangular abutment (37). Notch (33)
to be drilled.

Furthermore, the bottom surface of the mooring portion (3h) is formed into a plane with a predetermined crystallinity.

Also, this pair of supports (30) and 4S? , Speaker frame (4) using tW determining support jig (3)
The four supporting plates (15) are bent diagonally to one side (-1) and set upright from the circular bottom handling part (14) that takes the magnetic circuit, and the flat plate vibrator (9) is placed on top of the four supporting plates (15). It forms a rectangular frame part (16) to which the frame is attached.

(20) is an annular plate, (21) is an annular magnet, and (22) is a yoke plate, with a cylindrical yoke (23) protruding from the center.

In addition, the voice coil bobbin section (11 has a bobbin 4 shown in Fig. 1A).
．． A voice coil (19) is wound around L6, and a damper (7) is attached to it.

The coupler part (8) is thin-walled gold as shown in Figure 3. Ba(~
4- It is formed into a bent conical shape.

The deck diaphragm (9) part is made of honeycomb γ+4 formed in a rectangular shape, and a rectangular rod-shaped elastic edge (I[e) is attached to the outer periphery of the honeycomb diaphragm (9). Attach the body (24).

Further, (25) is a cylindrical positioning jig used in the manufacture of conventional speakers. (26) is a rectangular flat weight used for manufacturing work, and a circular hole (27) is provided in the center of the weight, which is larger than the outer diameter of the voice coil bobbin part +11 and smaller than the maximum diameter of the coupler. be.

First, the method for manufacturing the speaker of the present invention will be explained step by step.

First, as shown in Figure 3A, a plate (20), a magnet (
21) and a yoke plate (22) to form a magnetic circuit section.

Furthermore, a cylindrical positioning jig (25) is inserted into the voice coil bobbin section (11).
Place the voice coil bobbin part (11) in the position in the gear G in the magnetic circuit part so that the voice coil bobbin part (11) is attached. The opening 1'' part of this damper (7) and the outer periphery of the voice coil bobbin part +11 are attached with adhesive, and the outer periphery of the damper (7) is attached to the bottom plate part (14) of the frame (4). wear it.

Next, as shown in FIG. 3B, the operator attaches a pair of supports (3
0) are suspended from opposite sides of the frame (4).

That is, the rectangular frame portion (
The anchoring branch (35) of the support (30) is placed on the corner plane "2" of the rectangular frame (16), and set so that the outer vertical side of the rectangular frame (16) enters the relief groove (36). hang.

In this state, the support body (3 (1)) is suspended vertically, and the positioning protrusion (39) is attached to the support plate (3) of the frame (4).
15), and this support (30) is fixed (1/
It should be kept in place.

Then, ζ, a pair of positioning support jigs (3) are placed on the pair of supports (30).

That is, a positioning support jig (3) is passed between the support plates (15) of the frame (4) from the inside of one U-shaped support (30), and each mooring part (3b ) correspond to the locking projections (38) of the support (30), each locking projection (38) loosely fits into the oval through hole (40), and the U-shaped notch (33) has a rectangular shape. It is placed so as to loosely fit on the support base (37).

Note that the positioning support jig (3) includes a pair of supports (30
), the pair of positioning and supporting jigs (3) are provided with play so that they can be moved laterally within a predetermined range when placed on the
keep them close to each other within play range. In addition, this positioning support jig (3), the mooring part (3b), and the support body (3
According to the configuration in which play is provided in the locking protrusion (38) of 0), manufacturing tolerances of the frame (4) and positioning support jig (3) themselves are absorbed, and a means for correcting the accuracy is required. Moreover, since there is no need to forcefully fit the mooring part (3b) of the jig into the mooring protrusion (38) of the support (30), the mooring part (3b) of the jig does not wear out. 1) The maintenance of the jig itself can be reduced.

Next, as shown in FIG. 3C, the coupler part (8) is attached to the voice coil bobbin part (1).
), and align the position so that the lower end cylindrical part (8a) of the coupler part (8) can be inserted into the voice coil bobbin part (1). Then, place 26) heavily on this coupler part (8)-H. Then, the outer periphery of the slope of the coupler part (8) slides on the slope of the coupler support part (3a) of the positioning support jig (3) due to the heavy weight of the voice coil bobbin part (1). ), the pair of positioning and supporting jigs (3) are moved to spread out laterally, and the voice coil bobbin section (11) is automatically positioned by the cylindrical positioning jig (25). The portion (8) is centered and placed in the proper position.

In this state, carefully insert the circular hole (27) of 26) into the lower part of the inner circumference of the coupler part (8) and the voice coil bobbin part +11.
Attach one end with adhesive.

In this way, coupler part (8) and voice coil bobbin part +1
1 are integrally attached, these are dampers (7
), a pair of positioning support jigs (3) placed on the support body (30), and a cylindrical positioning jig (25). Therefore, remove the cylindrical positioning jig (25) from the cylinder of the voice coil bobbin part (1) while maintaining the proper position.

It is something that

In this way, the coupler part (81) and the voice coil bobbin part (11) are connected to the damper (7) and the support body (30).
) and a pair of positioning support jigs (3) placed on the
In the state of point support, the damper (7) can prevent the position from shifting in the horizontal direction, and the () γ positioning support jig R (3) does not move in the vertical direction, and the coupler part (
Since the slope 8) is supported from below by the slope of the cover support part (3a) of the pair of positioning support jigs (3), displacement in the vertical direction can be prevented. Furthermore, the integrated coupler part (8) and voice coil bobbin part +
11 is about to tilt, it will rotate around the support part by the damper (7), and the coupler part (8) and the positioning support jig (3) that supports it will be vertically tilted. However, since the position is regulated so that it does not shift in the iV direction as described above, it can be supported at an appropriate position without tilting.

Next, remove 26) from the -t of the coupler part (8), and shake it out! Place the II plate (9) part on the coupler part (81-hi), place the heavy weight 26 used earlier on top of it,
Its elastic edge (1 (II) A rectangular support frame (24
) to the rectangular frame part (16) of frame J (41) and adhere both of them, then remove 26) with a heavy weight. Here, the voice coil bobbin section (11,
The coupler part (8) and the flat plate diaphragm (9) are connected to the damper (7)
Since it is supported at three points: the elastic edge and the pair of positioning and supporting jigs (3) placed on the support (30), work H is performed using each support (30) and positioning support. The jig (3) is arranged in a row from the jig fitting groove (32) of the frame (4), and is constructed integrally with the first figure of the first embodiment described above in the same way as the Pozumono. The voice coil bobbin part +11, the coupler part (8), and the td+ machine (91) are manufactured so that they can move up within the elastic range of the damper (7) and the elastic edge O1 while maintaining the 1st position. It is something.

Note that the cylindrical positioning jig (25) that was used to position the voice coil bobbin part +11 was already removed during the manufacturing process before attaching the flat diaphragm (9), so it cannot be fixed to the flat diaphragm (9). There is no need to provide a hole for removing the tool, and since the slope of the coupler part (8) is supported by the pair of positioning and supporting jigs +31, the voice coil bobbin part (11
It does not require any other special parts such as a tsuba.

Furthermore, it is also possible to manufacture a speaker in which the jig mounting portion (5) for the positioning support jig (3) is not provided on the speaker frame (4).

In addition, there is no need to perform the difficult sub-assembly of the coupler part (8) to the flat diaphragm (9), and the work can proceed smoothly, which improves productivity, improves the product yield, and reduces the cost. products that can be provided.

Furthermore, in the second embodiment described above, the voice coil bobbin portion T
1) and the coupler part (8) are formed as separate parts, but even in a case where these are formed integrally from the beginning, the positioning support jig (3) of this example can be used to manufacture the product. can do.

In this case, the voice coil bobbin part (1) with the coupler part (8) formed therein is fitted onto the yoke (23) via the cylindrical positioning jig (6), and the damper (7) is attached to the voice coil bobbin part (1). The operations up to attaching the support to the frame (4) and suspending the pair of supports (30) from the frame (4) are the same as in the above-mentioned embodiment.

Next, the pair of positioning support jigs (3) are attached to the support body (30
), and lightly press the coupler support part (3a) along the outer periphery of the slope of the positioned coupler part (8).

In this state, the coupler part (8) and the voice coil bobbin part il+, which are integrally formed, are connected to the damper (7) and the support body (30).
) and the cylindrical positioning jig (6), so the cylindrical positioning jig (6) is removed.

Then, remove the flat plate diaphragm (9) while supporting it at two points: the damper (7) and the (1/w texture support jig (3)) placed on the support (30). Lee Kuchi I, Lee Shin II
The manufacturing process is the same as in the second embodiment described above, except that the jig (3) for the J' fixing support 1.1° is removed.

〔Effect of the invention〕

As detailed above, according to the method for manufacturing a speaker of the present invention, the coupler part is held at an appropriate position by a positioning support jig held in a predetermined position by a support during manufacturing, so that the speaker can be manufactured accurately. In addition to improving production yields, this method eliminates the need for special positioning members on the voice coil bobbin section or jig placement section on the frame, and allows for the difficult work of subassembling the coupler section onto the flat diaphragm. This has the effect of improving productivity, workability, and providing inexpensive products.

[Brief explanation of drawings]

1A to 1D are longitudinal sectional views showing each manufacturing process of the first embodiment of the speaker manufacturing method of the present invention, FIG. 2 is an exploded perspective view showing all the parts used in this example, and FIG. Diagram A
Figures 3 to 3 are longitudinal sectional views showing each manufacturing process of the second embodiment of the present invention, Figure 4 is an exploded perspective view of all the parts used in this example, and Figure 5 is an i! of a conventional speaker. 6 is a front view showing the members used in the conventional manufacturing method, FIG. 7 is a vertical sectional view showing the main parts of the conventional manufacturing process, and FIG. 8 is the conventional manufacturing method. FIG. 3 is a perspective view of a frame used in the manufacturing method. (1) is the voice coil bobbin part, (3) is the A17 positioning support jig, (3a) is the coupler support part, (6) is the cylindrical positioning jig, (7) is the damper, and (8) is the coupler. Part, (
9) is a flat diaphragm, and (30) is a support body. JP-A-6L-108298 (9) θ Itkokuku Hato > OCp-勺＠net
'-S ** Ward O-procedural amendment Motion 11Q) March 180, 1980 Manabu Shiga, Commissioner of the Patent Office 1, Indication of the case 2, Name of the invention Method of manufacturing a speaker 3, Person making the amendment and the case Relationship Patent applicant address Tokyo Parts Designed Parts 6-7-35 Name (2
18) Sony Corporation Representative Director Norio Ohga 4, Agent

Claims (1)

[Claims] The voice coil bobbin section is attached to the center core using a cylindrical positioning jig, and the damper is attached while maintaining the position. Next, the voice coil bobbin section and the coupler section, which are integrated, are placed in the specified position using a support attached to the frame. The speaker is positioned by supporting it at two points using the positioning support jig and the damper, and then the cylindrical positioning jig is removed, and the flat plate diaphragm part is attached to the coupler part to complete the speaker. Characteristic speaker manufacturing method.