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JPS4986840

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DESCRIPTION JPS4986840
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows a diaphragm according to the present
invention. FIG. 1 shows a side view, a mouth shows a plan view, and FIG. 2 shows response
characteristics. 1 part, 4 ..... inner edge, 5 ... ... driving end. (A) (mouth) Fig. 1-95-J-49-86840 (2)
Fig. 2 ,-摩, No Shitsu (Ishi 4 good) It circumference Fff number HL-96-
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a speaker
diaphragm. In the conventional sliding board of this rattan, an edge plate is pasted on the
peripheral edge of the cone paper and a round type one is used, but the vibration generated from
the center of the cone paper is reflected on the edge part And the phenomenon that they
interfere with each other occurs, but since the bonding margin of the edge portion is uniform and
the peripheral edge of the edge portion is provided concentrically, it is possible for abnormal
resonance or vibration of a specific frequency. It caused a mountain valley in the response. The
present invention seeks to provide a speaker diaphragm that eliminates the above-mentioned
drawbacks. (1) Next, the present proposal will be described with reference to FIG. Fig. 1 (a) is a
side view of the diaphragm of the present invention, and tpl is a plan view. (11 is a part of the oil
formed by forming a valve or the like at the cone part, (2) is a cloth, skin 9 urethane foam (3), the
cone (1) and the edge (2) are attached with an adhesive etc. (5I indicates the drive end). Thus, as
shown in the present invention, the shape of the inner edge (4) is to let the center OK of the cone
constructively eccentrically and be asymmetric with respect to the center as q # 黴. In contrast to
the prior art, the inner edge (4) is concentric. Therefore, it was shown by hatching of the bonding
seam margin (3) and most of it had a uniform width. In the case of a conventional free-edge
diaphragm in which the attachment margin (31 is uniform), the vibration company raised in the
neck (state 21i part 1) (5) attenuates the oblique 1 l III part (1) of the cone. (21 will be reached.
However, if it has an ideally designed edge and the stiffness of the cone (1) is high enough, it will
have almost no effect on the properties, but to control the properties, the stiffness and
mechanical losses When it is determined within the practical range (2), the paste cost (the
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mechanical impedance of 31 nodals changes to rapid freezing). In addition, if the width of the
poor bonding margin (3) is uniform, resonance occurs at a certain% foot frequency, and as shown
in the wL 2 figure, Vζ and a peak and valley occur in the response. However, the book 'lkK is
J11! l Sweetened period (3 + discontinuities in free edge form with sticking wrinkles, after
accepting that it can not be stopped, by making the width of sticking (3) as shown, different
wealth Collusion can be distributed to an unspecified number, and as a result, it is possible to
have a similar response. In addition, it may be stuck on the edge of the edge (2 (in the front of
the cone '(1),-on the back or bottom).
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