JPH05199585A - Manufacture of speaker - Google Patents

Abstract

PURPOSE:To simplify the work process, to shorten the working time, and to improve the quality of a product speaker by joining the edge sticking part of a diaphragm and an upper gasket made of synthetic resin, through which UV light can be transmitted, by a UV hardened adhesive. CONSTITUTION:A UV hardened adhesive 5 is applied on an edge sticking part 3a of a conical diaphragm 3, and an upper gasket 4a made of synthetic resin through which UV light can be transmitted is placed on it, and they are irradiated with UV light. The UV hardened adhesive 5 on the lower face is irradiated through the upper gasket 4a by the UV light and is hardened. As the result, firm adhesion between the edge sticking part 3a of the diaphragm 3 and the gasket 4a is completed in a short time without requiring a heater. Since the UV hardened adhesive 5 which has a high adhesion strength and has a viscosity is used, it keeps the viscosity after hardening and is softer than the edge sticking part 3a of the diaphragm 3 even if protruding, and scratching noise does not occur even if it is brought into contact with the edge sticking part 3a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a loudspeaker manufacturing method in which a novel material and an adhesive are used for a method of adhering a diaphragm and a gasket to improve a manufacturing process. .

[0002]

2. Description of the Related Art Conventionally, a method of manufacturing a speaker of this type has been mainly composed of an outer edge of a frame made of an iron plate, a lower gasket made of cardboard or the like, and an ordinary solvent-based or emulsion-based adhesive on the outer edge of the frame. Then, it was heat-cured and adhered, and the edge adhering portion of the conical diaphragm was adhered thereon with the same adhesive, and further, an upper gasket made of paper or the like was adhered thereon.

[0003]

Therefore, in the conventional method for manufacturing a speaker of this type, in the step of adhering the upper gasket, a large amount of a heating device for curing the adhesive, a heating time, etc. are required. However, there is a problem that the adhesive strength of the adhesive is not reliable. Further, among such adhesives, the elastomer adhesive is peeled off due to poor adhesion, which is a cause of occurrence of chattering failure. The main reason for this is considered to be insufficient adhesive strength between the edge portion of the diaphragm and the gasket, or a slight leak at the time of applying the adhesive.

Therefore, in order to solve the problem of the conventional speaker manufacturing method, the present invention does not use an organic solvent but uses a UV-curable resin, so that the process can be performed in a timely manner. It is an object of the present invention to provide a method of manufacturing a speaker, which aims to simplify the work process, shorten the work time, and improve the quality of the product speaker by simplifying the work.

[0005]

The structure of the present invention for achieving the above object will be described with reference to FIG. 1 corresponding to a speaker of the present invention. The present invention is arranged on the outer edge of the frame (1). , Lower gasket (2), and conical diaphragm on top of it
In the method for manufacturing a speaker in which the edge sticking portion (3a) of (3) is further stuck, and the upper gasket (4a) is stuck thereon, the edge sticking portion (3a) of the diaphragm (3) and the UV ray UV curable adhesive between the transparent synthetic resin upper gasket (4a)
This is a method for manufacturing a speaker, in which (5) is applied, and UV rays are applied to cure and adhere.

[0006]

Since the present invention has such a configuration, the edge of the conical diaphragm (3) is placed on the outer edge of the frame (1), on the lower gasket (2) attached. After adhering the attachment part (3a), UV on the edge attachment part (3a) of the diaphragm (3).
A curable adhesive (5) is applied, and an upper gasket (4a) made of a synthetic resin capable of transmitting UV rays is placed on the adhesive and UV rays are irradiated.

Therefore, according to the speaker manufacturing method of the present invention, the UV curable resin adhesive (5) on the lower surface is transmitted through the gasket (4a) made of synthetic resin capable of transmitting UV rays as described above.
The UV curable adhesive (5) can be cured by irradiating the UV light. As a result, the strong adhesion between the edge portion (3a) of the diaphragm (3) and the gasket (4a) can be obtained in a short time and with less labor, and the quality of the product speaker can be improved.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 (a) is a diagram showing an embodiment of a speaker manufactured by the method of the present invention, and FIG. 1 (b) is a partially enlarged view thereof. The speaker generally has a magnetic circuit (12) having a ring-shaped magnetic air gap (11) concentrically attached to the frame (1).
(3) is a conical diaphragm mainly made of paper.A voice coil bobbin (14) with a voice coil (13) wound around the center hole and a damper (15) attached to the middle abdomen is attached. The voice coil (13) is supported in the magnetic gap (11) by a damper (15) whose edge is attached to the frame (1) with an adhesive so as not to touch the magnetic pole wall.

And, at the time of assembly, as described above,
Place the lower gasket (2) over the outer edge of the frame (1) with the magnetic circuit (12) and the conical diaphragm (3) over it.
Edge sticking part (3a) of
In the manufacturing method of the speaker to which (4a) is attached, the diaphragm
UV curable adhesive between the edge sticking part (3a) of (3) and the synthetic resin upper gasket (4a) capable of transmitting UV rays.
(5) is applied and UV rays are radiated through the upper gasket (4a) by the UV ray irradiator (6).
This is a speaker manufacturing method in which (5) is cured and adhered.

Although the embodiments considered to be representative of the present invention have been described above, the present invention is not necessarily limited to the structures of these embodiments, and has the above-mentioned constitutional requirements of the present invention, and The present invention can be appropriately modified and carried out within the scope of achieving the object of the present invention and having the following effects.

[0011]

As is apparent from the above description, according to the present invention, the UV curable adhesive (5) is applied onto the edge attaching portion (3a) of the diaphragm (3), and Place an upper gasket (4a) made of synthetic resin that is transparent to UV rays on top of
Since it is a method of irradiating V rays, it passes through the gasket (4a) made of synthetic resin that can transmit UV rays, and
UV curable adhesive by irradiating the curable resin adhesive (5)
(5) can be cured, and as a result, the strong adhesion between the edge sticking part (3a) of the diaphragm (3) and the gasket (4a) does not require a heating device and heating time, In a short time, it is possible to obtain a remarkable effect of simplifying the work process, which cannot be expected from the conventional one.

Further, the present invention has a high adhesive strength and
Since the adhesive UV curable adhesive is used, it retains viscoelasticity even after curing and does not solidify, so if the adhesive leaks and sticks out, the edge sticking part (3a) of the diaphragm (3) Since it is softer than the edge sticking part (3a), it does not generate a rattling sound even when it comes into contact with the edge sticking part (3a), so it is possible to expect an effect that the quality of the product speaker can be improved. It has arrived. And again, UV curable adhesive
(5) to the diaphragm edge pasting part (3a) and upper gasket (4a)
It is also possible to apply it to the inside of the bonded portion of and to be diverted as a sealing material for preventing chatter vibration.

Furthermore, since the adhesive (5) is a non-solvent type and not a thermosetting type, the edge adhering portion of the vibrating plate (3) is
It is possible to obtain the favorable effect that the chemical and thermal adverse effects are not exerted on (3a).

[Brief description of drawings]

FIG. 1A is a sectional view showing a speaker of an embodiment of the present invention, and FIG. 1B is an enlarged view of a main part.

[Explanation of symbols]

 (1) Frame (2) Lower gasket (3) Cone-shaped diaphragm (3a) Edge attachment part (4a) Upper gasket made of synthetic resin capable of transmitting UV rays (5) UV curable adhesive (6) UV rays Irradiation device

Claims (1)

[Claims] 1. A lower gasket (2) on the outer edge of the frame (1), an edge attachment portion (3a) of a conical diaphragm (3) on it, and an upper portion on it. In the method of manufacturing a speaker in which a gasket (4a) is attached, a UV-curable type is provided between an edge attachment portion (3a) of a diaphragm (3) and an upper gasket (4a) made of synthetic resin capable of transmitting UV rays. Apply adhesive (5),
A method for manufacturing a speaker in which UV rays are irradiated to cure and adhere.