JPS62135587A - Brake shoe - Google Patents

Brake shoe

Info

Publication number
JPS62135587A
JPS62135587A JP27535885A JP27535885A JPS62135587A JP S62135587 A JPS62135587 A JP S62135587A JP 27535885 A JP27535885 A JP 27535885A JP 27535885 A JP27535885 A JP 27535885A JP S62135587 A JPS62135587 A JP S62135587A
Authority
JP
Japan
Prior art keywords
brake
resin
brake shoe
weight
braking
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
JP27535885A
Other languages
Japanese (ja)
Inventor
Morinori Fukuda
守記 福田
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP27535885A priority Critical patent/JPS62135587A/en
Publication of JPS62135587A publication Critical patent/JPS62135587A/en
Pending legal-status Critical Current

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  • Braking Arrangements (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

PURPOSE:To obtain a brake shoe capable of providing a stable braking time and free from occurrence of abnormal sounds, by mixing a low-melting thermoplastic crystalline resin such as high-density polyethylene with a high-melting polyamide resin and blending the mixture with synthetic rubber and a filler, followed by molding. CONSTITUTION:5-15wt% low-melting thermoplastic crystalline resin (A) comprised of at least one member selected from among high-density polyethylene and ultrahigh-molecular polyethylene is mixed with 45-65wt% polyamide resin (B) having a melting point higher than that of the component A to obtain a mixed resin. 25-40wt% synthetic rubber and 5-15wt% at least one filler selected from among potassium titanate whisker, calcium carbonate and talc are uniformly mixed with and dispersed in a major component comprised of the mixed resin. The mixing and dispersion product is molded into a brake shoe for use in braking a brake wheel for a centrifugal dehydrator.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、衣類などの脱水を行う遠心脱水機のブレーキ
など、断続で制動をかけるブレーキ機構を有する産業分
野では広く使用できるブレーキシューに関するものであ
る。
DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a brake shoe that can be widely used in industrial fields having a brake mechanism that applies braking intermittently, such as the brake of a centrifugal dehydrator for dewatering clothes, etc. .

従来の技術 従来のアルミニウム製ブレーキホイールを使う遠心脱水
機のブレーキ機構を第9図および第10図により説明す
る。すなわち、遠心脱水機の外装体1内には、駆動モー
ター2の駆動軸3とブレーキホイール4を介して直結さ
れた脱水かと5が設けられである。洗濯した衣類を脱水
かと5に入れ、脱水フタロを閉めると、ワイヤー7が連
動して引っハラれ、ブレーキレバー8とブレーキレバー
8に固着されているブレーキシュー9が、ブレーキホイ
ール4の摺動面より離れる。これと同時に駆動モーター
2に通電されて、脱水かと5が毎分170Q回転〜18
00回転するので、衣類中の水は、遠心力により外へ飛
散して、脱水槽10の壁をったい、排水口11から排水
ホース(図示せず)により、核外へ排水される。脱水が
終了して、脱水フタロを開けると、ワイヤー7が連動し
て緩み、ブレーキスプリング12がブレーキレノ<−8
を引張り、ブレーキシュー9がブレーキホイール4に巻
き込まれ制動が掛り脱水かと5を停止させる。このよう
にて車用されるフ゛レーキンユ−9は、ポリアミド−ら
が60重量゛几、熱可塑性エラストマー40重iTf’
!’oの混合物を成形したものである。
2. Description of the Related Art A conventional brake mechanism of a centrifugal dehydrator using an aluminum brake wheel will be explained with reference to FIGS. 9 and 10. That is, in the exterior body 1 of the centrifugal dehydrator, a dehydration head 5 is provided which is directly connected to a drive shaft 3 of a drive motor 2 via a brake wheel 4. When the washed clothes are placed in the dehydrator 5 and the dehydrator is closed, the wire 7 is pulled together, and the brake lever 8 and the brake shoe 9 fixed to the brake lever 8 are pulled against the sliding surface of the brake wheel 4. Move further away. At the same time, the drive motor 2 is energized, and the dehydration motor 5 rotates at 170 Q to 18 rpm.
00 rotations, the water in the clothes is scattered to the outside by centrifugal force, and is drained from the wall of the dehydration tank 10 and out of the nucleus through the drain port 11 by a drain hose (not shown). When dehydration is completed and the dehydration phthalo is opened, the wire 7 is interlocked and loosened, and the brake spring 12 becomes brake leno<-8
The brake shoe 9 is caught in the brake wheel 4, applying braking and stopping the dewatering wheel 5. The flakekin Yu-9 used in cars is made of polyamide or the like with a weight of 60 weight and thermoplastic elastomer with a weight of 40 weight iTf'.
! 'o mixture is molded.

発明が解決しようとする問題点 上記樹脂シュー9を使用すると、ブレーキシュー9の面
圧分布を考えると明らかなように、ブレーキレバー8の
支点に近い側が犬きくなる。この場合、遠1U脱水機の
負荷が大きくなると、面圧の大きい側の摩耗が大きくな
り巻き込み角度がそれとともに大きくなって、ブレーキ
時間が短かくなってい〈○このだめ遠・0脱水機の各部
品へ過大な負荷がかかり、脱水機の寿命を短かくすると
いう悪影響があった。。
Problems to be Solved by the Invention When the resin shoe 9 is used, as is clear from consideration of the surface pressure distribution of the brake shoe 9, the side of the brake lever 8 closer to the fulcrum becomes stiffer. In this case, as the load on the far 1U dehydrator increases, the wear on the side with higher surface pressure increases, the winding angle increases accordingly, and the braking time becomes shorter. This had the negative effect of placing an excessive load on the parts and shortening the life of the dehydrator. .

本発明は、このような問題点を解決するもので、製品寿
命に至るまで、通切なブレーキ時間を確保して脱水機へ
の過大な負荷を与えないようにするものである。
The present invention solves these problems by ensuring a consistent braking time throughout the life of the product and preventing excessive load on the dehydrator.

問題点を解決するための手段 この問題点を解決するために本発明は、熱可塑性樹脂の
剛性を調整すると同時に、アルミニウム製のブレーキホ
イールを場つけることのない、充填材を配合したもので
ある。
Means for Solving the Problem In order to solve this problem, the present invention incorporates a filler that adjusts the stiffness of the thermoplastic resin and at the same time does not interfere with the aluminum brake wheel. .

作用 この材料t14成により、アルミニウム製のブレーキホ
イールを攻撃して、アルミニウムの窄耗マたは切片によ
り異常音を発生することなく、ポリアミド樹脂の優れた
耐摩耗性による面1久寿命確保、熱可塑性エラストマー
による摩擦係数確保、超高分子PK、HDPE&てよる
ブレーキ音防止および耐摩耗性と充填材配合の剛性によ
り、ブレーキ時間の安定と停止時のブレーキ音防止がで
きる。
Function: The T14 material does not attack aluminum brake wheels and generate abnormal noise due to aluminum wear or chips, and ensures a long service life due to the excellent wear resistance of polyamide resin. The plastic elastomer ensures a coefficient of friction, the ultra-high polymer PK, HDPE & brake prevents brake noise, and the abrasion resistance and rigidity of the filler compound make it possible to stabilize braking time and prevent brake noise when stopping.

実施例 以下、本発明の実施例について説明する。Example Examples of the present invention will be described below.

ブレーキシューは、ポリアミドら(三菱油化・BASF
社B3S )45〜65重量%、高密度ポリエチレン(
三菱油化+a)BZ−5o)5〜15重量%、熱可塑性
エラストマー(旭化成(5リソルプレン414)25〜
40重量0loタルク5〜16重量%を均一に混合分散
させ成形したものである。上記配合割合で成形したブレ
ーキシューの実験結果を第1図、第3図に示す。
Brake shoes are made of polyamide etc. (Mitsubishi Yuka/BASF)
Company B3S) 45-65% by weight, high density polyethylene (
Mitsubishi Yuka+a) BZ-5o) 5-15% by weight, thermoplastic elastomer (Asahi Kasei (5 Lysolprene 414) 25-15% by weight
It is formed by uniformly mixing and dispersing 5 to 16% by weight of 0LO talc. Experimental results of brake shoes molded with the above blending ratio are shown in FIGS. 1 and 3.

(1)充填材配合 第1図の実験データーに示すように5〜15重量%の充
填材を配合した熱可塑性樹脂ブレーキ/ニー;は、安定
したブレーキ時間が得られ、15重量%を越えるとブレ
ーキ時間が長すぎ、5重量%を下捷わると短かすぎる。
(1) Filler composition As shown in the experimental data in Figure 1, thermoplastic resin brakes/knees containing 5 to 15% by weight of filler provide stable braking time; The braking time is too long, and when it is reduced by 5% by weight, it is too short.

同様に剛性の低い従来の熱可塑性樹脂ブレーキシューは
著しくブレーキ時間が短かくなる。このことから本発明
の樹脂プレーキンニーの方がブレーキ機!!jiまわり
への過大な負荷を与えずIQれていることが分かる。こ
れは第2図に示すように、制動中樹脂ブレーキシュー1
3が制動力により巻き込み先端部より順次弾性変形を生
じ後端が圧接され摩耗するものであり、樹脂プレーキン
ニーの剛性を増すことにより、先端と後端の摩耗比率を
調整でき、巻き込み角度の変化を押えるものでちる。ま
た、この充填材は、アルミニウム製ブレーキホイール1
4を傷つけることないので、金IB音の発生もない。
Similarly, conventional thermoplastic brake shoes with low stiffness significantly shorten braking times. For this reason, the resin brake knee of the present invention is a better brake machine! ! It can be seen that the IQ is reduced without placing an excessive load on the ji area. As shown in Fig. 2, this is caused by the resin brake shoe 1 during braking.
3 is one in which elastic deformation occurs sequentially from the tip of the winding due to braking force, and the rear end is pressed against it and wears out.By increasing the rigidity of the resin pre-knee, the wear ratio between the front and rear ends can be adjusted, and changes in the winding angle can be adjusted. Chill with something you can hold. In addition, this filler is used for aluminum brake wheels 1
Since it does not damage the 4, there is no gold IB sound.

2)低融点樹脂配合 第2図は本発明のプレーキンニーs −T t441&
Jを求めたものであるが、本発明の樹脂プレーキンニー
より高密度ポリエチレンを除いた樹脂ブレーキシューは
、ベース樹脂の6−ナイロンが結晶性樹脂であることか
ら、摩擦熱によりガラス転移点を越えゴム的性質(粘弾
性)を示し、摩擦係数が急激に上昇し制動トルクが大巾
に上がる。これにより、停止直前にスティック・スリッ
プを生じブレーキ音が発生する一方、本発明のブレーキ
シューは、高密度ポリエチレンを配合しているため、高
密度ポリエチレンの融点を越えると、軟化して潤滑性を
有するので急激な摩擦係数の上昇を抑制している0この
ことから最も発熱の高いブレーキ停止直前に潤滑性を得
ることができブレーキシュー摺動面のスティックスリッ
プ現家を防止するためブレーキ音が発生しない。第4図
はHD 、 P E fli・ブレーキ時間・面圧の関
係図であるが、5重量?′O〜15重宿°九で短かく適
正なブレーキ時間が得られ、5wt%以下で(は、ブレ
ーキ時間が寸だスティックスリップ防止もできない。1
625以上ではブレーキ時間が長すぎる。
2) Low melting point resin formulation Figure 2 shows the prekinny s-T t441& of the present invention.
However, since the resin brake shoe of the present invention, which is made by removing high-density polyethylene from the resin brake shoe of the present invention, the base resin 6-nylon is a crystalline resin, it exceeds the glass transition point due to frictional heat and becomes rubber. The coefficient of friction increases rapidly and the braking torque increases dramatically. This causes stick-slip and brake noise just before stopping, but since the brake shoes of the present invention are compounded with high-density polyethylene, when the melting point of high-density polyethylene is exceeded, it softens and loses its lubricity. This suppresses a sudden increase in the coefficient of friction.This allows lubricity to be obtained just before the brake stops, which generates the most heat, and prevents stick-slip on the sliding surface of the brake shoe, which generates brake noise. do not. Figure 4 shows the relationship between HD, PE fli, braking time, and surface pressure. A short and appropriate braking time can be obtained at 'O ~ 15°9, and below 5wt%, the braking time is short and stick-slip cannot be prevented.1
If it is 625 or more, the braking time is too long.

f3j  合成ゴム 第5図、第6図は、合成ゴム含有率とブレーキ時間およ
び摩耗量の関係を求めたものであるが、ブレーキ時間と
耐摩耗性から、40重量%を越えると著しく摩耗が犬き
くなりかつブレーキ時間も短かすぎ使用に耐えない。ま
た、25重量?6を下まわるとブレーキ時間が長すぎ使
用に釦えない。
f3j Synthetic Rubber Figures 5 and 6 show the relationship between synthetic rubber content, braking time, and amount of wear. From the perspective of braking time and wear resistance, when the content exceeds 40% by weight, wear is significantly reduced. The brakes become louder and the braking time is too short to be usable. Also, 25 weight? If it goes below 6, the braking time is too long and the button cannot be pressed.

(4)ペース樹脂 第7図、第8図に示すように、ポリアミド6は、熱可塑
性樹脂中で、耐摩耗性が特に優れた樹脂であり、柔軟性
を有し高融点樹脂であるので、ブレーキシューのペース
樹脂として最適であるが45重量%を下まわると、溶融
状態が発生し焼は付いたり、ブレーキ時間が不安定とな
る。なお、ポリアミド66、ポリアミド11 。
(4) Pace Resin As shown in Figures 7 and 8, polyamide 6 is a resin with particularly excellent wear resistance among thermoplastic resins, and is a flexible and high melting point resin. It is most suitable as a pace resin for brake shoes, but if it is less than 45% by weight, a molten state will occur, causing seizures and making the braking time unstable. In addition, polyamide 66 and polyamide 11.

ポリアミド12も使用できる。Polyamide 12 can also be used.

発明の効果 以上のように、本発明によれば、充填(−4をポリアミ
ド樹脂をベースとした、熱可塑性樹脂ブレーキシューに
混合することで、プレーキンニー全体の剛性調整により
、巻き込み角度の変化をぜ1胤・:して、いつも安定し
たブレーキ時間が得られる。っまだ、高密度ポリエチレ
ンあるいは超高分子ポリエチレンを配合しているためブ
レーキ音の発生がなく、さらにアルミニウムを攻゛12
するような、強化繊維を配合していないので、ブレーキ
ホイールの著しい摩耗および金属音も生じない優れたブ
レーキシューを得ることができる。
Effects of the Invention As described above, according to the present invention, by mixing the filling (-4) into a thermoplastic resin brake shoe based on polyamide resin, the rigidity of the entire brake knee can be adjusted, thereby eliminating changes in the winding angle. 1.: Therefore, you can always get stable braking time.It still contains high-density polyethylene or ultra-high molecular weight polyethylene, so there is no brake noise, and it also has aluminum 12
Since it does not contain reinforcing fibers, it is possible to obtain an excellent brake shoe that does not cause significant brake wheel wear or metallic noise.

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

第1図は、本発明のブレーキシューと従来ブレーキシュ
ーのブレーキ回数とブレーキ時間の関係を示す図、第2
図は、制動直前のブレーキシューと、制動中に弾性変形
したブレーキシューの状態図、第3図は、HDPRを配
合した場合と除いた場合のS−T曲線図、第4は本発明
のブレーキシューで、HDPR含有率・面圧・ブレーキ
時間O関係図、第5図はブレーキ時間と合成ゴム含有率
との関係図、第6図は摩耗量と合成ゴム含有率の関係図
、第7図は各樹脂と比摩耗量の関係図、第8図は各樹脂
と体積摩耗量の関係図、第9図は遠心脱水機の全体構成
断面図、第10図は、ブレーキ機構の斜視図である。 13・・・・・・ブレーキシュー、14・・・・・・ブ
レーキホイル。 代理人の氏名 弁理士 中 尾 敏 男 ほか1名表1
叫(25 口中AN   /7θθrp〜 第2図 第3図 L3転軟Crf)ル〕 第4図 第 5 図 第 6 図 第7図 摺動摩利」     をへ馬軌機 人趙へ−ム達し号杷
ざ9フこ湾1も IC,C)                  ハI
史機 テーパー第9図 第10図
FIG. 1 is a diagram showing the relationship between the number of braking times and braking time of the brake shoe of the present invention and the conventional brake shoe, and FIG.
The figure shows a state diagram of a brake shoe immediately before braking and a brake shoe that is elastically deformed during braking. Figure 3 is an S-T curve diagram with and without HDPR blended. Figure 4 is a diagram of the brake shoe of the present invention. Figure 5 is a relationship diagram between brake time and synthetic rubber content, Figure 6 is a relationship diagram between wear amount and synthetic rubber content, and Figure 7 is a diagram showing the relationship between HDPR content, surface pressure, and brake time. 8 is a diagram showing the relationship between each resin and specific wear amount, FIG. 8 is a diagram showing the relationship between each resin and volumetric wear amount, FIG. 9 is a sectional view of the overall configuration of the centrifugal dehydrator, and FIG. 10 is a perspective view of the brake mechanism. . 13... Brake shoe, 14... Brake wheel. Name of agent: Patent attorney Toshio Nakao and 1 other person Table 1
(25 Mouth AN /7θθrp~ Fig. 2 Fig. 3 L3 Transfer Crf) Le] Fig. 4 Fig. 5 Fig. 6 Fig. 7 Sliding Mari” to the horse rail machine to the human Zhao to the loquat Za9 Fuko Bay 1 also IC, C) Ha I
Historical Machine Taper Figure 9 Figure 10

Claims (1)

【特許請求の範囲】[Claims]  ブレーキホィールを制動するブレーキシューが高密度
ポリエチレンおよび超高分子ポリエチレンの少なくとも
1つ以上からなる低融点の熱可塑性結晶性樹脂5〜15
重量%と前記低融点熱可塑性結晶性樹脂よりも高融点の
ポリアミド樹脂45〜65重量%との混合物を主成分と
し、これに合成ゴムを25〜40重量%、チタン酸カリ
ウムウィスカー、炭酸カルシウム、タルク、の少なくと
も1つ以上からなる充てん材を5〜15重量%を均一に
混合分散させ成形したブレーキシュー。
The brake shoe for braking the brake wheel is a low melting point thermoplastic crystalline resin made of at least one of high density polyethylene and ultra high molecular weight polyethylene.
The main component is a mixture of 45 to 65 weight % of a polyamide resin having a higher melting point than the low melting point thermoplastic crystalline resin, 25 to 40 weight % of synthetic rubber, potassium titanate whiskers, calcium carbonate, A brake shoe formed by uniformly mixing and dispersing 5 to 15% by weight of a filler consisting of at least one of talc.
JP27535885A 1985-12-06 1985-12-06 Brake shoe Pending JPS62135587A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP27535885A JPS62135587A (en) 1985-12-06 1985-12-06 Brake shoe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP27535885A JPS62135587A (en) 1985-12-06 1985-12-06 Brake shoe

Publications (1)

Publication Number Publication Date
JPS62135587A true JPS62135587A (en) 1987-06-18

Family

ID=17554358

Family Applications (1)

Application Number Title Priority Date Filing Date
JP27535885A Pending JPS62135587A (en) 1985-12-06 1985-12-06 Brake shoe

Country Status (1)

Country Link
JP (1) JPS62135587A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2349447A (en) * 1999-04-30 2000-11-01 Birkbys Plastics Limited Control pedal assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2349447A (en) * 1999-04-30 2000-11-01 Birkbys Plastics Limited Control pedal assembly
GB2349447B (en) * 1999-04-30 2003-07-09 Birkbys Plastics Ltd A control pedal assembly

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