JPS6327151Y2 - - Google Patents
Info
- Publication number
- JPS6327151Y2 JPS6327151Y2 JP1983026721U JP2672183U JPS6327151Y2 JP S6327151 Y2 JPS6327151 Y2 JP S6327151Y2 JP 1983026721 U JP1983026721 U JP 1983026721U JP 2672183 U JP2672183 U JP 2672183U JP S6327151 Y2 JPS6327151 Y2 JP S6327151Y2
- Authority
- JP
- Japan
- Prior art keywords
- drum
- shoe
- wheel cylinder
- vibration
- back plate
- 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.)
- Expired
Links
- 239000002390 adhesive tape Substances 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 20
- 229910052742 iron Inorganic materials 0.000 description 10
- 230000002093 peripheral effect Effects 0.000 description 3
- 210000001015 abdomen Anatomy 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Vibration Prevention Devices (AREA)
- Braking Arrangements (AREA)
Description
【考案の詳細な説明】
本考案は自動車等のブレーキ装置として一般に
用いられているドラムブレーキにおける鳴き防止
装置に関するものである。[Detailed Description of the Invention] The present invention relates to a squeal prevention device for drum brakes, which are generally used as braking devices for automobiles and the like.
ドラムブレーキは、車輪等の回転部材と一体と
なつて回転するドラムと該ドラムの内周面に対向
するシユーと、車輪を支持するハウジング等の非
回転部材側に固定されたバツクプレートに取付け
られ前記シユーをドラム内周面に押しつけ作動さ
せるホイールシリンダ等の組合せよりなるのが普
通である（例えば実開昭55−56930号公報及び実
開昭55−78839号公報等参照）。 A drum brake consists of a drum that rotates together with a rotating member such as a wheel, a shoe that faces the inner peripheral surface of the drum, and a back plate that is fixed to a non-rotating member such as a housing that supports the wheel. Usually, it consists of a combination of wheel cylinders, etc., which actuate the shoe by pressing it against the inner peripheral surface of the drum (see, for example, Japanese Utility Model Application Publication No. 55-56930 and Japanese Utility Model Application Publication No. 55-78839, etc.).
上記のようなドラムブレーキにおいては、ホイ
ールシリンダが作動してシユーをドラムの内周面
に圧接させた制動時、所謂ブレーキの鳴きと称さ
れるかん高い異音を発生する。 In the above-mentioned drum brake, when the wheel cylinder operates and the shoe is brought into pressure contact with the inner peripheral surface of the drum during braking, a high-pitched noise called so-called brake squeal is generated.
このブレーキの鳴きは、制動時ドラムとシユー
の摺動によつて生ずる摩擦振動が該シユー及びホ
イールシリンダを介してバツクプレートを共振さ
せて生じるものであり、該バツクプレートの共振
はバツクプレートの大きさや形状により異るが、
例えば第１図に示すようにツーリーデイングタイ
プのブレーキ等バツクプレート１の中心０に対し
対称的に２個所ホイールシリンダの取付部２，２
が設けられているものにおいては、Ａ，A′のよ
うにシユーの反力を受けるホイールシリンダ取付
部２及び２が振動の腹となり偶数次のモードで振
動している。 This brake squeal is caused by the frictional vibration caused by the sliding of the drum and shoe during braking, which causes the back plate to resonate through the shoe and wheel cylinder.The resonance of the back plate is due to the large size of the back plate. It varies depending on the shape of the pod,
For example, as shown in FIG. 1, there are two mounting parts 2, 2 of the wheel cylinder symmetrically with respect to the center 0 of the back plate 1, such as a two-leading type brake.
In the case where the wheel cylinder mounting portions 2 and 2, which receive the reaction force of the shoe, such as A and A', act as antinodes of vibration and vibrate in an even-order mode.
振動の防止対策として振動する物体にダイナミ
ツクダンパを設けることは従来より一般に採用さ
れているところであるが、通常ダイナミツクダン
パは振動の腹となる部分に取付けて制振させるの
が普通であり、従つてダイナミツクダンパは数10
〜数100Hzの低周波振動には対応できても数1000
Hzの高周波振動に対しては対応できないと言うの
が従来からの常識であり、上記のようなブレーキ
の鳴きのように3000Hz程度のかん高い音に対して
ダイナミツクダンパでは吸収できないとされてい
るのが現状である。 It has been common practice to install dynamic dampers on vibrating objects as a measure to prevent vibrations, but normally dynamic dampers are installed at the antinode of vibration to dampen vibrations. Therefore, the number of dynamic dampers is 10.
~ Even if it can handle low frequency vibrations of several 100 Hz, it will only be several 1000 Hz.
It has long been common knowledge that dynamic dampers cannot cope with high-frequency vibrations of 3000 Hz, such as the brake squeal mentioned above. is the current situation.
本考案は極めて簡単なる構成においてブレーキ
の鳴きを防止することができる装置を提供しよう
とするもので、以下第２，３図の実施例を参照し
て説明する。 The present invention aims to provide a device that can prevent brake squeal with an extremely simple configuration, and will be described below with reference to the embodiments shown in FIGS. 2 and 3.
第２，３図において、１はホイールシリンダ
（図示省略）の取付部２，２をもつバツクプレー
ト、３はシユー、４はドラムであり、ホイールシ
リンダの作動によりシユー３がドラム４の内周面
に圧接した制動時において、該シユー３の摩擦振
動がシユー３の反力を受けるホイールシリンダ取
付部よりバツクプレート１に伝わり、バツクプレ
ート１が第１図のＡ，A′に示すように共振する
ことは前述した通りである。 In Figs. 2 and 3, 1 is a back plate with attachment parts 2 and 2 for wheel cylinders (not shown), 3 is a shoe, and 4 is a drum. During braking when the shoe 3 is in pressure contact with the shoe 3, the frictional vibration of the shoe 3 is transmitted to the back plate 1 from the wheel cylinder attachment part that receives the reaction force of the shoe 3, and the back plate 1 resonates as shown at A and A' in FIG. This is as stated above.
本考案では、バツクプレート１裏側の外周寄り
の部分に、ホイールシリンダ取付部２の振動の腹
ａをまたぎ振動の節ｂ，ｂとなる部分を通つて隣
り合つた腹ｃとｃにまで至る円弧形状の鉄板５を
両面接着テープ６にて貼り付けたものである。 In the present invention, a circular arc is formed on the back side of the back plate 1 near the outer periphery, which straddles the antinode a of the vibration of the wheel cylinder mounting part 2, passes through the vibration nodes b and b, and reaches the adjacent anodes c and c. A shaped iron plate 5 is attached with double-sided adhesive tape 6.
尚両面接着テープ６の端縁部にはシール剤７を
塗布して接着面に水が侵入することがないように
することが望ましい。 It is preferable to apply a sealant 7 to the edge of the double-sided adhesive tape 6 to prevent water from entering the adhesive surface.
上記のようにホイールシリンダ取付部２を中心
として左右に隣り合つた振動の腹と腹とを結ぶよ
う鉄板５を両面接着テープ６にてバツクプレート
１裏面に貼り着けた本考案では、両面接着テープ
６が弾性材、鉄板５が重りとして一種のダイナミ
ツクダンパとしての機能を果すと共に、該ダイナ
ミツクダンパを振動の基点となるホイルシリンダ
取付部を中心として左右の振動の節となる部分を
通り両隣りの振動の腹にまで連続して設けたこと
により、低周波の振動のみならず、数1000Hzの高
周波振動にも的確に対応でき、3000〜35000Hzの
ブレーキ鳴き音を効果的に吸収することができる
ものである。 As described above, in the present invention, the iron plate 5 is attached to the back surface of the back plate 1 with the double-sided adhesive tape 6 so as to connect the anti-nodes of vibration adjacent to the left and right with the wheel cylinder mounting portion 2 at the center. is an elastic material, and the iron plate 5 is used as a weight to function as a kind of dynamic damper. By providing continuous vibration up to the antinode of the vibration, it can accurately respond to not only low frequency vibrations but also high frequency vibrations of several 1000 Hz, and can effectively absorb brake squeal noise of 3000 to 35000 Hz. It is something.
所定の形状に構成した鉄板５を単に両面接着テ
ープ６にて貼りつけるだけで目的を達成できるの
で、組付けが極めて容易であり、且つコスト的に
非常に有利であることは言うまでもない。 Since the purpose can be achieved by simply pasting the iron plate 5 formed into a predetermined shape with double-sided adhesive tape 6, it goes without saying that assembly is extremely easy and is very cost-effective.
尚エネルギーの大なる鳴きに対しては上記ホイ
ールシリンダ取付部２，２を中心として左右に対
称に振り分けて貼着した鉄板５，５に加え、他の
振動の腹となる部分a′，a′を中心としてその両隣
りの腹となる部分c′，c′にまで至る鉄板５′，
５′を両面接着テープにて貼着すれば極めて効果
的である。 In addition to the iron plates 5, 5 attached symmetrically to the left and right around the wheel cylinder mounting parts 2, 2, in addition to the iron plates 5, 5, which are attached to the left and right sides of the wheel cylinder mounting parts 2, 2, in addition to the iron plates 5, 5, which are the antinodes of vibration, parts a', a' The iron plate 5' is centered on and extends to the belly portions c' and c' on both sides of the iron plate 5',
It is extremely effective to attach 5' with double-sided adhesive tape.
以上のように本考案では、鉄板とそれをバツク
プレート裏面に貼着する両面接着テープにてダイ
ナミツクダンパを構成すると共に、該鉄板を少く
ともホイールシリンダ取付部の振動の腹となる部
分を中心に左右の隣り合う振動の腹と腹とを結ぶ
よう貼着したことにより、制動時の鳴き音の著し
い低減をはかることができるもので、部品が単純
で組付作業が極めて容易であり且つコスト低廉な
ることと相俟つて実用上多大の効果をもたらし得
るものである。 As described above, in the present invention, a dynamic damper is constructed using a steel plate and double-sided adhesive tape that is attached to the back surface of the back plate, and the steel plate is attached at least to the center of vibration at the part where the wheel cylinder is attached. By attaching the anti-nodes of vibrations that are adjacent to each other on the left and right sides, it is possible to significantly reduce squealing noise during braking.The parts are simple, the assembly work is extremely easy, and the cost is low. Together with this, this can bring about great practical effects.
第１図イ，ロはバツクプレートの断面図及び制
動時におけるバツクプレートの振動モード説明
図、第２図及び第３図は本考案の実施例を示す要
部断面図及びバツクプレートの裏面図である。
１……バツクプレート、２……ホイールシリン
ダ取付部、３……シユー、４……ドラム、５……
鉄板、６……両面接着テープ。
Figures 1A and 3B are a cross-sectional view of the back plate and an explanatory diagram of the vibration mode of the back plate during braking, and Figures 2 and 3 are a cross-sectional view of essential parts and a back view of the back plate showing an embodiment of the present invention. be. 1...Back plate, 2...Wheel cylinder mounting part, 3...Shoe, 4...Drum, 5...
Iron plate, 6... double-sided adhesive tape.
Claims (1)
周面に対するシユーと非回転部材であるバツクプ
レートに取付けられ該シユーをドラム内周面に押
付作動させるホイールシリンダとからなるドラム
ブレーキにおいて、バツクプレートの少くともホ
イールシリンダ取付部の振動の腹となる部分を中
心にその左右の節となる部分を通り左右に隣り合
う振動モードの腹と腹とを結ぶ円弧形状の鉄板
を、バツクプレート裏面に両面接着テープにて貼
着したことを特徴とするブレーキの鳴き防止装
置。 A drum brake consisting of a drum that rotates together with a rotating member, a shoe for the inner circumferential surface of the drum, and a wheel cylinder that is attached to a non-rotating member and presses the shoe against the inner circumferential surface of the drum. An arc-shaped steel plate is attached to the back of the back plate using double-sided adhesive tape, centering around the vibration antinode of the wheel cylinder mounting part, passing through the nodes on the left and right, and connecting the vibration modes that are adjacent on the left and right. A brake squeal prevention device characterized by a brake squeak prevention device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2672183U JPS59132919U (en) | 1983-02-25 | 1983-02-25 | Brake squeal prevention device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2672183U JPS59132919U (en) | 1983-02-25 | 1983-02-25 | Brake squeal prevention device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59132919U JPS59132919U (en) | 1984-09-06 |
| JPS6327151Y2 true JPS6327151Y2 (en) | 1988-07-22 |
Family
ID=30157628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2672183U Granted JPS59132919U (en) | 1983-02-25 | 1983-02-25 | Brake squeal prevention device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59132919U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5346567A (en) * | 1976-10-07 | 1978-04-26 | Hosei Brake Ind | Creakproof device for drum brake |
-
1983
- 1983-02-25 JP JP2672183U patent/JPS59132919U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5346567A (en) * | 1976-10-07 | 1978-04-26 | Hosei Brake Ind | Creakproof device for drum brake |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59132919U (en) | 1984-09-06 |
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