JPH0286299A - Diaphragm for speaker - Google Patents

Abstract

PURPOSE:To attain the assembly of a speaker unit with a simple process by forming a molten fixed part to a hole of a diaphragm made of a thermoplastic resin to which a silver thread is inserted, soldering a lead wire and a silver thread and melting and solidifying the molten fixed part. CONSTITUTION:A hole 12 to insert a silver thread X is made to a diaphragm 11 made of a thermoplastic resin, a rimb 12A as the molten fixed part is formed to the surrounding of the hole 12 to make the thick part. Then the silver thread X is inserted through the hole 12 and its end and the lead wire Y led from the voice coil are soldered and the rim 12A is heated and molten to weld the silver thread X and the lead wire Y to the diaphragm 11. Thus, the silver thread X and the lead wire Y are fixed to the diaphragm 11 with a simple manufacture process.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a speaker diaphragm, and more specifically,
This invention relates to a speaker diaphragm made of thermoplastic resin.

[Conventional technology]

In the generally known speaker unit based on υ, tinsel wire is placed through the moving plate (1- As shown in Figure 3, this f!
j: The part where the thread passes through the diaphragm 2, and this and 1I7t
Another hole 3, 4 is drilled to match the hole 3,
Pass the tinsel wire 1 through 1aI1 in an inverted U shape through 4, and remove the voice coil from the j! ] The lead wire 5 and the tinsel wire 1 are connected by soldering.

[Problem to be solved by the invention]

In the speaker diaphragm as described above, the holes 3 and 4 are provided with eyelets, which not only complicates the work process but also requires eyelet fittings. Therefore, the object of this invention is to make it possible to fix tinsel wires and lead wires to the diaphragm by a simple process when the diaphragm is made of thermoplastic 461 resin. It is.

[Means for Solving Section 7] In order to achieve the above-mentioned object, the present invention provides a speaker diaphragm made of thermoplastic resin, in which a lead wire extending from a voice coil and a JJt4 moving plate Eyelet L1 is attached to the connection part with the flij thread line passed from the back side to the front side at a ratio of 1:5.
ν is melted and fixed f, and j≦ is JfJ, and this melted and fixed part is f;! It is characterized in that after passing one piece of thread, the melting and fixing part is heat-melted to fix the tinsel wire.

【Example】

Hereinafter, FIG. 1 (,1
), (b), (C) and Fig. 2 (a), -(b
). In these figures, the symbol U indicates a diaphragm molded from thermoplastic resin, and a tinsel wire X is connected to this diaphragm 1 by l+i'
A hole 12 is drilled for the i to pass through, and a rim portion 12A serving as a fixing portion is formed by melt cutting around this hole 12 to form a thick wall portion. The i+lj thread fG Connect the exposed lead wire Y to the hunter.
2 Melt A with a heated soldering iron or the like and press f! ii. Fix the thread line X and the lead wire Y to the diaphragm 11.

[Other Examples]

In the above embodiment, as shown in FIG.
The rim part 12A was provided integrally with the diaphragm 11 as a constant part, but a thick eyelet member 13 formed by non-'9'U type I flit was inserted into the hole L2. It is also possible to fit it in and melt it. In this case, since the I and M members [3] have insulating properties, there is no need to use tinsel wire in an insulating tube. [Effects of the Invention] As is clear from the above description, according to the speaker diaphragm of the present invention, the melted and fixed portion is integrally or separately provided in the hole through which the tinsel wire of the thermoplastic resin diaphragm is inserted. After connecting the lead wire and the tinsel wire by soldering, it is possible to integrate the diaphragm with the diaphragm by hardening the molten fixing part. This has the effect of assembling the speaker unit.

[Brief explanation of the drawing]

Figures 1 (a), (b), and (C) are an enlarged 1-fold view and a partial perspective view of the main parts of the speaker diaphragm according to the present invention, and an enlarged 1-fold view of the tinsel wire fixed to the diaphragm. side view,
Fig. 2 (b) is a partially enlarged cross-sectional view of another embodiment and an enlarged cross-sectional view of the f::! thread wire being temporarily fixed in the u'i movement, and Fig. 3 is a li/li of a conventional speaker unit.
l”6 E-side view. 11... Vibration plate, 12... Hole, 12A... Rim part, 13... Eyelet part) tAlX... Tinsel wire, Y...
·Lead. Patent applicant: Pioneer Law Company (a) (b) (C) Agent: Patent attorney Nobuaki Kobashi

Claims (2)

[Claims] (1) In a speaker diaphragm made of thermoplastic resin, an eyelet-shaped melt-fixed part is attached to the connection part between the lead wire extending from the voice coil and the tinsel wire inserted from the back side of the diaphragm to the front side. 1. A diaphragm for a speaker, characterized in that the tinsel wire is fixed by inserting the tinsel wire into the melt-fixed portion and then thermally welding the melt-fixed portion. (2) The diaphragm for a speaker according to claim 1, wherein an eyelet member made of a non-conductive resin is insert-molded in the cotton thread insertion portion of the diaphragm.