JPS614398A - Dustproof net of speaker in car - Google Patents

Dustproof net of speaker in car

Info

Publication number
JPS614398A
JPS614398A JP12710184A JP12710184A JPS614398A JP S614398 A JPS614398 A JP S614398A JP 12710184 A JP12710184 A JP 12710184A JP 12710184 A JP12710184 A JP 12710184A JP S614398 A JPS614398 A JP S614398A
Authority
JP
Japan
Prior art keywords
dustproof net
polyvinyl chloride
short fiber
net
speaker
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP12710184A
Other languages
Japanese (ja)
Inventor
Kunio Mitobe
三戸部 邦男
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pioneer Corp
Original Assignee
Pioneer Corp
Pioneer Electronic Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pioneer Corp, Pioneer Electronic Corp filed Critical Pioneer Corp
Priority to JP12710184A priority Critical patent/JPS614398A/en
Publication of JPS614398A publication Critical patent/JPS614398A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00Diaphragms for electromechanical transducers; Cones
    • H04R7/02Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/12Non-planar diaphragms or cones

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

PURPOSE:To improve incombustibility, weatherproofness, water proof property etc. by weaving a dustproof net using spun yarn obtained by mixed yarn of short fiber of polyvinyl chloride and short fiber of polyethylene terephtalate. CONSTITUTION:To make the dustproof net 10, equal quantity of short fiber of polyvinyl chloride and short fiber of polyethylene terephtalate is mixed and mixed yarn is obtained by spinning. The net is woven by woven number of warp 30-45/square inch, weft 30-45/square inch. Proportion of mixing of polyvinyl chloride and polyethylene terephtalate may be 30:70-100:0. However, in the case of 100% polyvinyl chloride, thermal resistance becomes inferior. The dustproof net is dyed black for its appearance, and incombustibility is supplemented by soaking small quantity of incombustible agent or black resin. In the case of speaker in a car, as water repellent property is influenced by number of weaving, water proof property is improved by securing coarsenenn that does not cause deformation of the diaphragm.

Description

【発明の詳細な説明】[Detailed description of the invention] 【産業上の利用分野】[Industrial application field]

この発明は、車載用スピーカの防塵ネットに関し、さら
に詳しくは、難燃性に富む防塵ネットに15Ilする。
The present invention relates to a dustproof net for a vehicle speaker, and more specifically, to a dustproof net that is highly flame retardant.

【従来の技術】[Conventional technology]

車載用スピーカの前面には、塵埃の侵入や、振動板の保
護を目的として防塵ネットが張設されている。この防塵
ネットは、車内と云う特別な環境から耐候性に優れ、熱
収縮率が小さく、耐水性にも優れ、とくに、安全性の見
地から難燃性に優れた#1lIiで形成したものが用い
られている。 例えば、代表的なIm紺としては、ポリエチレンテレフ
タレート(テトロンIHN>が挙げられる。 この繊維は耐候性に優れ、温度変化の影響も受番)にく
く、耐水性にも優れているのであるが、難燃性に乏しい
ので、加工により難燃性を付加して使用される。この難
燃性付与には、難燃剤を樹脂に混合し1.これを前記ポ
リエチレンテレフタレート繊維に含浸するのであって、
加工コストがかなり高いものとなっている。 さらに詳しく説明すると、ポリエチレンテレフタレート
繊維の40番手糸を軽52〜45本/平方インチ、緯4
0〜45本/平方インチで編み込み、これに黒染と、ネ
ットに弾性を若干与えるために難燃剤を20〜50%の
割合で樹脂に混合したものを前記繊維に含浸するのであ
る。 このようにして得られた防塵ネットは、きわめて熱収縮
率が小さ・く、耐水性に優れているが、難燃剤のコスト
と、元々高価なポリエチレンテレフタレート繊維を10
0%用いることから、かなり高いものになっている。
A dustproof net is placed on the front of the car speaker to prevent dust from entering and to protect the diaphragm. This dustproof net is made of #1lIi, which has excellent weather resistance, low heat shrinkage, and excellent water resistance due to the special environment of the inside of a car, and has excellent flame retardancy from a safety standpoint. It is being For example, a typical Im navy blue is polyethylene terephthalate (Tetron IHN). This fiber has excellent weather resistance, is not easily affected by temperature changes, and is also excellent in water resistance. Since it has poor flammability, it is used by adding flame retardancy through processing. To impart this flame retardancy, a flame retardant is mixed into the resin.1. This is impregnated into the polyethylene terephthalate fiber,
The processing cost is quite high. To explain in more detail, 40 count polyethylene terephthalate fiber yarns are used with a light weight of 52 to 45 yarns/square inch and a weft of 4.
The fibers are woven at a rate of 0 to 45 fibers per square inch, and then dyed black and impregnated with a mixture of flame retardant and resin at a ratio of 20 to 50% to give the net some elasticity. The dustproof net obtained in this way has an extremely low heat shrinkage rate and excellent water resistance, but the cost of flame retardants and the originally expensive polyethylene terephthalate fibers are high.
Since 0% is used, it is quite high.

【目 的】【the purpose】

そこで、この発明は比較的廉価で、動燃性に優れ、耐候
性、耐水性、さらには収縮率の小さい防塵ネッ1〜を提
供することを目的とするものである。
Therefore, the object of the present invention is to provide a dustproof net 1 which is relatively inexpensive, has excellent dynamic combustibility, weather resistance, water resistance, and further has a small shrinkage rate.

【構 成】【composition】

上述のような目的を達成するために、この発明は、ポリ
エチレンテレフタレートと、ポリ塩化ビニールの各知1
1#Itを紡績することで得た綴紐で軽30〜45本/
平行インチ、緯30〜45本/平方インチに編み込んで
ネットを形成し、これに少量の難燃剤、あるいは、黒色
の樹脂を含浸させてネットをII燃性にすると共に、弾
性をもたμて構成したことを特徴とづるものである。 [実 施 例] 以下、この発明の構成を車載用スピーカど共に説明する
。先ず、図において符号1はヨークを示し、このヨーク
1にマグネット2を介してトッププレート3が取付けら
れて、センターポール4と、コノトッププレート3の間
隙間にボビン゛5に巻装されたボイスコイル5aが位置
し、ボビン5には振動板6の内周縁が固定されている。 この振動板6の外周縁はエツジ7を介してバッキング8
によりフレーム9に固定されており、このバッキング8
で囲まれる空間の前面が防塵ネット10によって被われ
、防塵ネット10の周縁はバッキング8に対して熱融着
あるいは、接着剤による接着で固定されている。 この防塵ネット10は、ポリ塩化ビニールの短繊維と、
ポリエチレンテレフタレートの短繊維とを等量混合し、
これを紡績して混紡糸を得る。この混紡糸で経30〜4
5本/平行インチ、紳30〜45本/平方インチの編み
込み本数により編成されている。 ポリ塩化ビニールと、ポリエチレンテレフタレートとの
混紡率は30ニア0〜100:Oでもよいが、ポリ塩化
ビニール100%では難燃性には問題はないが、耐熱性
において劣る。 得られた防塵ネットの体裁から黒染し、さらには、防塵
ネット自体に弾性を与えるために、少量の難燃剤、ある
いは、黒色の樹脂を含浸させることで鯉燃牲を補う。 車載用スピーカの場合、耐水性、ならびに、繰返される
耐熱温度り゛イクルの点が重要であるが、ネットの編み
込み本数の多少で水はりが左右されるから、振動板が変
形を起こさない程度の粗さを確保づることで耐水性の問
題を解決できる。 また、繰返される耐熱温度サイクルの問題は、この発明
の防塵ネットがきわめて小さい熱収縮率(100℃、2
4時間で0.5%以下)であり、ポリエチレンフタレー
ト繊1([100%で、難燃処理したものと変わらない
。 【効 果) 以上の説明から明らかなように、この発明の車載用スピ
ーカの防塵ネットは、ポリ塩化ビニールの短繊維と、ポ
リエチレンテレフタレートの短繊維との混紡により得た
紡績糸で編成したから、難燃性に優れ、かつ、耐候性、
耐水性などにも優れ、廉価に提供できる効果がある。
In order to achieve the above-mentioned objects, the present invention utilizes polyethylene terephthalate and polyvinyl chloride.
30 to 45 light cords obtained by spinning 1#It/
A net is formed by weaving parallel inches and 30 to 45 threads/square inch, and this is impregnated with a small amount of flame retardant or black resin to make the net II flammable and elastic. It is characterized by its composition. [Example] Hereinafter, the configuration of the present invention will be explained together with a vehicle-mounted speaker. First, in the figure, reference numeral 1 indicates a yoke, a top plate 3 is attached to this yoke 1 via a magnet 2, and a voice wound around a bobbin 5 is installed in the gap between the center pole 4 and the top plate 3. A coil 5a is located, and the inner peripheral edge of a diaphragm 6 is fixed to the bobbin 5. The outer peripheral edge of this diaphragm 6 is connected to a backing 8 via an edge 7.
This backing 8 is fixed to the frame 9 by
The front surface of the space surrounded by is covered with a dustproof net 10, and the periphery of the dustproof net 10 is fixed to the backing 8 by heat fusion or adhesive bonding. This dustproof net 10 is made of polyvinyl chloride short fibers,
Mix equal amounts of short fibers of polyethylene terephthalate,
This is spun to obtain a blended yarn. This blended yarn has a warp of 30 to 4
It is knitted with a number of braids of 5 per parallel inch and 30 to 45 per square inch. The blending ratio of polyvinyl chloride and polyethylene terephthalate may be 30:0 to 100:0, but if the polyvinyl chloride is 100%, there is no problem in flame retardancy, but it is inferior in heat resistance. The appearance of the resulting dustproof net is dyed black, and furthermore, in order to give elasticity to the dustproof net itself, it is impregnated with a small amount of flame retardant or black resin to compensate for carp flammability. In the case of in-vehicle speakers, water resistance and repeated heat-resistant temperature cycles are important, but since the number of woven nets affects the amount of water, the diaphragm should be made to a level that does not cause deformation. By ensuring roughness, the problem of water resistance can be solved. In addition, the problem of repeated heat-resistant temperature cycles is that the dustproof net of this invention has an extremely small heat shrinkage rate (100℃, 2
0.5% or less in 4 hours) and polyethylene phthalate fiber 1 (100%, which is the same as that treated with flame retardant treatment. [Effects] As is clear from the above explanation, the in-vehicle speaker of this invention The dustproof net is knitted with spun yarn obtained by blending short fibers of polyvinyl chloride and short fibers of polyethylene terephthalate, so it has excellent flame retardancy, weather resistance,
It also has excellent water resistance and can be provided at a low price.

【図面の簡単な説明】[Brief explanation of the drawing]

添付図面はこの発明の防塵ネットを備える車載用スピー
カの断面図である。 1・・・ヨーク、2・・・マグネット、3川トツププレ
ー1.4・・・センターポール、5・・・ボビン、6山
振動板、1・・・エツジ、8・・・バッキング、9・・
・フレーム、10・・・防塵ネット。
The accompanying drawing is a sectional view of a vehicle-mounted speaker equipped with a dustproof net according to the present invention. 1... Yoke, 2... Magnet, 3 River top play 1.4... Center pole, 5... Bobbin, 6-mount diaphragm, 1... Edge, 8... Backing, 9...
・Frame, 10...dustproof net.

Claims (1)

【特許請求の範囲】[Claims] (1)車載用スピーカ用防塵ネットにおいて、ポリ塩化
ビニールの短繊維と、ポリエチレンテレフタレートの短
繊維との混紡糸で形成したことを特徴とする車載用スピ
ーカの防塵ネット。
(1) A dustproof net for a car speaker, characterized in that the net is made of a blended yarn of polyvinyl chloride short fibers and polyethylene terephthalate short fibers.
JP12710184A 1984-06-19 1984-06-19 Dustproof net of speaker in car Pending JPS614398A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12710184A JPS614398A (en) 1984-06-19 1984-06-19 Dustproof net of speaker in car

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12710184A JPS614398A (en) 1984-06-19 1984-06-19 Dustproof net of speaker in car

Publications (1)

Publication Number Publication Date
JPS614398A true JPS614398A (en) 1986-01-10

Family

ID=14951616

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12710184A Pending JPS614398A (en) 1984-06-19 1984-06-19 Dustproof net of speaker in car

Country Status (1)

Country Link
JP (1) JPS614398A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010208557A (en) * 2009-03-11 2010-09-24 Denso Corp Vehicle existence notification device
US20160073183A1 (en) * 2014-09-08 2016-03-10 Apple Inc. Molded acoustic mesh for electronic devices

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5310745A (en) * 1976-07-16 1978-01-31 La Mode Management Pty Flame resisting textile fiber and method of making same
JPS5819896U (en) * 1981-07-31 1983-02-07 光工業株式会社 Speed improvement device for garbage collection ship with rotor drain plate

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5310745A (en) * 1976-07-16 1978-01-31 La Mode Management Pty Flame resisting textile fiber and method of making same
JPS5819896U (en) * 1981-07-31 1983-02-07 光工業株式会社 Speed improvement device for garbage collection ship with rotor drain plate

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010208557A (en) * 2009-03-11 2010-09-24 Denso Corp Vehicle existence notification device
US20160073183A1 (en) * 2014-09-08 2016-03-10 Apple Inc. Molded acoustic mesh for electronic devices
US10154327B2 (en) * 2014-09-08 2018-12-11 Apple Inc. Molded acoustic mesh for electronic devices

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