JPS59144855A - Sprocket - Google Patents

Sprocket

Info

Publication number
JPS59144855A
JPS59144855A JP1770683A JP1770683A JPS59144855A JP S59144855 A JPS59144855 A JP S59144855A JP 1770683 A JP1770683 A JP 1770683A JP 1770683 A JP1770683 A JP 1770683A JP S59144855 A JPS59144855 A JP S59144855A
Authority
JP
Japan
Prior art keywords
roller
tooth
chain
noise
gear
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
JP1770683A
Other languages
Japanese (ja)
Inventor
Masashi Nagano
正士 長野
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.)
Shimano Inc
Original Assignee
Shimano Industrial Co Ltd
Shimano Inc
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 Shimano Industrial Co Ltd, Shimano Inc filed Critical Shimano Industrial Co Ltd
Priority to JP1770683A priority Critical patent/JPS59144855A/en
Publication of JPS59144855A publication Critical patent/JPS59144855A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H55/00Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02Toothed members; Worms
    • F16H55/30Chain-wheels
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H55/00Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02Toothed members; Worms
    • F16H55/30Chain-wheels
    • F16H2055/306Chain-wheels with means providing resilience or vibration damping in chain sprocket wheels

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gears, Cams (AREA)

Abstract

PURPOSE:To reduce the noise of collision of rollers and the bottoms of teeth, by providing the roller incoming side of each tooth with an elastically deformed part, which comes into contact with the incoming roller to interfere with its incoming to the bottom of the tooth. CONSTITUTION:The chain roller incoming side of each tooth 11 of a sprocket 1 is provided with an elastically deformed part 13, which comes into contact with a chain roller 23 incoming to the tooth, to interfere with the incoming to the bottom 12 of the tooth. Since the roller 23 receives the contact interference of the elastically deformed part 13 and is introduced to the bottom 12 of the tooth 11, the noise of collision of the roller and the bottom of the tooth is reduced. The impact caused at the time of contact of the roller 23 with the elastically deformed part 13 is absorbed by its elastic deformation so that an impact noise is prevented. The noise of engagement of the sprocket 1 and a chain is thus surely reduced.

Description

【発明の詳細な説明】 この発明は、主として自転車に用いるチェノギャ、詳し
くはインナーリンクでレートとアウターリンクプレート
及びローラを備えた駆動チェノと噛合う多数の歯をもつ
チェノギャに関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a chain gear mainly used for bicycles, and more particularly to a chain gear having a large number of teeth that meshes with a driving chain having an inner link, a rate, an outer link plate, and a roller.

一般に自転車は、駆動チェノギャと従動チェノギャとの
間に駆動チェノを掛回し、前記駆動チェノギャをクラン
ク?介して回転させることにより、前記チェノを介して
従動チェノギャに回転動力を伝達し、該従動チェノギャ
の回恢に伴ない後車輪を回転させて自転車走行を行なう
のであるが、斯くのどとく行なう自転車走行時には、前
記各ギヤにチェノが噛合う際、これらギヤとチェノとの
間に音鳴りが生じるのである。
Generally, in a bicycle, a driving chain is hung between a driving chain gear and a driven chain gear, and the driving chain gear is cranked. By rotating the chain through the chain, rotational power is transmitted to the driven chain gear through the chain, and as the driven chain gear recovers, the rear wheel is rotated to perform bicycle running. Sometimes, when the chino meshes with each of the gears, a noise is generated between these gears and the chino.

しかして前記音鳴りを防止すべく、その発生原因を追求
したところ、チェノギャのチェノに対する噛合時、つま
りチェノギャの回転に伴ない該チェノギャの歯がチェノ
に噛合うとき、このチェノのローラが前記チェノギャの
歯と歯の間に侵入して歯底を直接打撃し、この打撃音が
前記音鳴りの発生原因となることが判明したのである。
In order to prevent the noise, we investigated the cause of the noise and found that when the chain gear engages with the chain, that is, when the teeth of the chain gear mesh with the chain as the chain gear rotates, the rollers of the chain engage with the chain gear. It was discovered that the impact noise entered between the teeth and directly struck the bottom of the teeth was the cause of the above-mentioned noise.

本発明は以上のごとき考察のもとになしたもので、その
目的は、チェノギャのチェノに対する噛合時、チェノの
ローラをチェノギャの歯底に直接干渉させずに、その前
に前記チェノギャの歯の側端面に干渉させた後歯底に導
入させることにより前記ローラと歯底との打撃音を小な
らしめ、音鳴りを防止せんとするものである。
The present invention has been made based on the above consideration, and its object is to prevent the rollers of the cheno gear from directly interfering with the bottom of the tooth of the cheno gear when the cheno gear engages with the cheno gear, and to By interfering with the side end surface and then introducing it into the bottom of the tooth, the impact sound between the roller and the bottom of the tooth is reduced and noise is prevented.

しかして本発明の構成は、前記歯における前記ローラの
侵入側側端面に、前記歯に侵入するローラと接触して、
該ローラの歯底への侵入を干渉下る弾性変位部を設け、
該弾性変位部により前記ローラを干渉させて、歯底に導
入し、音鳴りご減少させるべくしたものである。
Accordingly, the configuration of the present invention is such that the end surface of the teeth on the entry side of the roller is in contact with the roller entering the teeth,
Provided with an elastic displacement part that interferes with the roller's intrusion into the tooth bottom,
The elastic displacement portion interferes with the roller and introduces it into the tooth bottom, thereby reducing noise.

以下本発明にか\るチェノギャ?図面の実施例によって
説明下る。
Is this invention related to the following? The explanation will be given by way of example in the drawings.

図中(1〕は外周に多数の歯(11)を等間隔に設ける
と共に、この各歯(11ンの間には、歯底(12)を形
成したチェノギャであり、(2)は前記チェノギャ(1
,)の歯(11)に噛合う駆動チェノであって、このチ
ェノ(2)は1対のインナーリンクブレー)  (21
)、(21)と、1対のアウターリンクプレート (2
2)、(22〕 と、ローラ(26)とから成り、前記
各インナーリンクプレート (21)、、(21)の長
さ方向両側で、該各ブレー) (21)、(21,)間
に、前記ローラ(2ろ)をそれぞれ介装させると共、に
、tYiJ記インナーリンクプレート (21)、(2
1)の長さ方向両(fil+で外個部に、前記アウター
リンクプレート(22)、、(22)xそれぞれ配置し
て、該各アウターリンクプレート (22)、(22)
間に、前記各インナーリンクプレート (21)、’(
’21)及びローラ(26)を経てビン(24)を貫通
固定させることにより、前記インナーリンクプレート(
21)、(21)とアウターリンクプレート (22)
、(22)とを結合し、斯くのどとくして多数のインナ
ーリンクプレート (21)、(21)とアウターリン
クプレート (22)、(22)とを長尺に無端状に結
合させている。
In the figure, (1) is a chain gear in which a large number of teeth (11) are provided at equal intervals on the outer periphery, and tooth bottoms (12) are formed between each tooth (11), and (2) is the chain gear. (1
,) is a drive chino meshing with the teeth (11) of the chino (2), which has a pair of inner link brakes) (21
), (21) and a pair of outer link plates (2
2), (22), and a roller (26), on both sides of each inner link plate (21), (21) in the length direction, between each brake (21), (21,). , the rollers (2 rollers) are interposed therein, and inner link plates (21) and (2) are provided.
1) The outer link plates (22), (22)
In between, each inner link plate (21),'(
By penetrating and fixing the bin (24) through the inner link plate ('21) and the roller (26),
21), (21) and outer link plate (22)
, (22), and through this throat, a large number of inner link plates (21), (21) and outer link plates (22), (22) are connected in a long, endless manner.

斯くして前記チェノギャ(1)の回転に伴ない、前記チ
ェノ(2ンのローラ(2ろ)を前記ギヤ(1〕の歯(1
1)と歯(11)の間から歯底(12)へと侵入させ、
前記歯(11)のギヤ回転方向前面側に前記ローラ(2
6)を当接させて前記チェノ(2)に回転駆動力を与え
るべくしている。
In this way, as the chain gear (1) rotates, the chain gear (2)'s roller (2 roller) is moved between the teeth (1) of the gear (1).
1) and the tooth bottom (12) from between the teeth (11),
The roller (2) is placed on the front side of the gear rotation direction of the tooth (11).
6) are brought into contact with each other to apply rotational driving force to the chino (2).

しかして前記ギヤ(1)の歯(11)における前記チェ
ノローラ(2ろ)の侵入側([I+1端而に、+7ir
記爾(11)に侵入するローラ(25)と接触して該ロ
ーラ(26)の歯底(12)への侵入を干渉する弾性変
位ff1s13)を形成するのである具体的には、前記
ギヤ(1)を例えば合成樹脂或はアルミニウム合金など
の軟質材料で形成する場合は、第1及び第2図に示すご
とく、前記ギヤ(1)における歯(11)の回転方向後
側面一/ 邪を約0.2〜0.3 Rw程度膨出させて該膨出部を
前゛記ローラ(23〕と干渉する弾性変位g(13)と
なし、この弾性変位g (13)に前記ローラ(2ろ)
を接触させて歯底(12)へと導入させることにより、
前記ローラ(2ろ〕と歯底(12)との打撃音を小なら
しめ、かつmllフローラ2ろ)と弾性変位部(16)
との接触時に生じる衝撃は、l1Ij記弾性変位部(1
6)の弾性変位によって吸収させ、衝撃音の発生2阻止
するのである。
Therefore, the intrusion side ([I+1 end, +7ir
Specifically, the gear (11) forms an elastic displacement ff1s13) that comes into contact with the roller (25) entering the gear (11) and interferes with the entry of the roller (26) into the tooth bottom (12). 1) is made of a soft material such as synthetic resin or aluminum alloy, as shown in FIGS. The bulge is made to bulge by about 0.2 to 0.3 Rw to create an elastic displacement g (13) that interferes with the roller (23), and the roller (2 roller) is attached to this elastic displacement g (13). )
By bringing it into contact with and introducing it into the tooth bottom (12),
The impact sound between the roller (2) and the tooth bottom (12) is reduced, and the mll flora 2) and the elastic displacement portion (16) are
The impact generated upon contact with the elastic displacement portion (1
6) It is absorbed by the elastic displacement and prevents the generation of impact noise.

また前記ギヤ(1)を鉄などの硬質材料で形成する場合
には、第3図に示すごと< 、niI記ギヤ(1)にお
ける歯(11)の回転方向後側面に、該爾(11]の一
部を切欠くなどして少下方に突出下る突出片を形成し、
該突出片を弾性変位部(16)とな丁のである。
In addition, when the gear (1) is made of a hard material such as iron, as shown in FIG. Form a protruding piece that protrudes slightly downward by cutting out a part of it,
The protruding piece serves as an elastic displacement portion (16).

図の実施例においては、前記ギヤ(1)における歯(1
1)の回転方向後側面に弾性変位g(13)を形成した
が、この弾性・変位W)(1ろ〕は前記歯(11〕−の
後側面と前側面との両側面に形成することもできる。
In the illustrated embodiment, the gear (1) has a tooth (1).
Although the elastic displacement g(13) is formed on the rear side surface in the rotational direction of 1), this elastic displacement W) (1ro) must be formed on both the rear and front side surfaces of the tooth (11). You can also do it.

また本発明のチェノギャ(1)は、主に自転車の駆動チ
ェノギャ、従動チェノギャ及びディレーラ−のテンショ
ンプーリーなどに適用するのであるが、自転車以外にも
例えば美容車4cどのチェノギャ及びテンションプーリ
ーにもJ ノM可能である0 尚、図中(25)は前記チェノ(2)のローラ(2ろ)
に内装するブツシュである。
In addition, the chain gear (1) of the present invention is mainly applied to the driving chain gear, driven chain gear, and tension pulley of a derailleur of a bicycle, but it can also be applied to any chain gear and tension pulley of a beauty car 4c, etc. M is possible 0 In addition, (25) in the figure is the roller (2 roller) of the chino (2).
It is a bush to be decorated.

本発明は以上のごとく構成したもので、チェノギャ(1
)の回転に伴ない駆動チェノ(2)のローラ(23)が
、前記ギヤ(1)の南(11)と+8(11)の間から
歯底(12)へと侵入され、前記ローラ(2ろ)が前記
歯(11)の回転方向前面側に当接されて、前記ギヤ(
1)からチェノ(2)に回転駆動力が伝達さ′九る。
The present invention is constructed as described above.
), the roller (23) of the drive chino (2) enters the tooth bottom (12) from between the south (11) and +8 (11) of the gear (1), and the roller (2) The gear (11) is brought into contact with the front side of the tooth (11) in the rotating direction,
The rotational driving force is transmitted from 1) to the chino (2).

しかして前記四−ラ(2ろ)の前記歯底(12)への侵
入時に、該ローラ(23)は前記歯(11)のローラ侵
入側側端面に設けた弾性変位部(16)に接触干渉され
て、歯底(12)へと導入されるのであり、従って前記
ローラ(26〕と歯底(12)との打′、弦音が小とな
り、また前記ローラ(2ろ)と弾性変位部(1ろ〕との
]X触時に生じる衝撃は、同記弾性変位邪(16)の弾
性変位によって吸収されるため、衝撃音を生じることは
ないのである。
Therefore, when the fourth roller (2 roller) enters the tooth bottom (12), the roller (23) comes into contact with the elastic displacement portion (16) provided on the end surface of the tooth (11) on the roller entry side. Therefore, when the roller (26) and the tooth bottom (12) hit, the string sound becomes small, and the roller (26) and the elastic displacement part The impact generated when X touches (1) is absorbed by the elastic displacement of (16), so no impact sound is generated.

以上説明したごとく本発明のチェノギャによれば、爾【
こおけるチェノローラの侵入側側端面に前記歯に侵入す
るローラと接触して該ローラの歯底への侵入を干渉する
弾性゛変位部を設けたから、前記弾性変位部によりロー
ラと歯底との打撃音を小ならしめることができ、また前
記ローラと弾性変位部との接触時に生じる衝撃は、前記
弾性変位部の弾性変位により吸収できて、(IT雫音を
発生することもなく、従って前記チェノギャとチェノと
の噛合時に生じる音鳴りを+il実に防止できるに至っ
たのである。
As explained above, according to the Chenogya of the present invention,
Since an elastic displacement part is provided on the entry side end surface of the Cheno roller that contacts the roller entering the tooth and interferes with the roller's entry into the tooth bottom, the elastic displacement part prevents the impact between the roller and the tooth bottom. The sound can be reduced, and the impact generated when the roller and the elastic displacement part come into contact can be absorbed by the elastic displacement of the elastic displacement part (there is no dripping noise) This has made it possible to effectively prevent the noise that occurs when the metal and the chino engage.

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

第1図は本発明にか\るチェノギャの一実施例2示す一
部切欠1Ili1面図、第2図は同平面図、第3図は他
実施例を示す側面図である。 (1)・・・チェノギャ (11)−・・爾 (12)・・・歯底 (1ろ)・・・I;i性変位邪 (2)・・・チェノ (21)・・・インナーリンクプレート(22)・・・
アウターリンクプレート(26)・・・ローラ 什理人 弁理士 津 1)直 久 第1図 / 第2悶I
FIG. 1 is a partially cutaway plan view showing Embodiment 2 of a Cheno gear according to the present invention, FIG. 2 is a plan view of the same, and FIG. 3 is a side view showing another embodiment. (1)...Cheno Gya (11)-...R (12)...Tooth Bottom (1ro)...I;i Sexual Displacement Evil (2)...Ceno (21)...Inner Link Plate (22)...
Outer link plate (26)...Laura Jurito Patent attorney Tsu 1) Naohisa 1st figure/2nd agony I

Claims (1)

【特許請求の範囲】[Claims] イジナーリンクプレートとアウターリンクプレート及び
ローラを備えた駆動チェノと噛合う多数の歯をもつチェ
ノギャであって、前記歯における前記ローラの侵入側側
端面に、前記歯に侵入するローラと接触して、該ローラ
の歯底への侵入ご干渉する弾性変位部を設けたことを特
徴とするチェノギャ。
A chain gear having a large number of teeth that mesh with a driving chain including an adjustment link plate, an outer link plate, and a roller, wherein an end surface of the teeth on the entry side of the roller is in contact with the roller entering the teeth. , a chenogya characterized in that an elastic displacement part is provided to interfere with the intrusion into the bottom of the tooth of the roller.
JP1770683A 1983-02-04 1983-02-04 Sprocket Pending JPS59144855A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1770683A JPS59144855A (en) 1983-02-04 1983-02-04 Sprocket

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1770683A JPS59144855A (en) 1983-02-04 1983-02-04 Sprocket

Publications (1)

Publication Number Publication Date
JPS59144855A true JPS59144855A (en) 1984-08-20

Family

ID=11951213

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1770683A Pending JPS59144855A (en) 1983-02-04 1983-02-04 Sprocket

Country Status (1)

Country Link
JP (1) JPS59144855A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005007819A1 (en) * 2005-02-21 2006-08-24 Uli Sommer Gear wheel for chain drive, has teeth, where contour of teeth in area of tooth base and tooth flank is recessed close to base opposite to contour of chain roll or sprocket wheel, where change over of base to flank is represented by level
EP2677204A1 (en) * 2012-06-21 2013-12-25 Tai-Her Yang Chainwheel enabling positive rotational transmission and reverse rotational sliding features
EP2677205A1 (en) * 2012-06-21 2013-12-25 Tai-Her Yang Anti-detachment chainwheel having forced recessed face at chain tooth root portion
WO2017034428A1 (en) * 2015-08-25 2017-03-02 Miranda & Irmão, Lda. Transmission system and its use

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005007819A1 (en) * 2005-02-21 2006-08-24 Uli Sommer Gear wheel for chain drive, has teeth, where contour of teeth in area of tooth base and tooth flank is recessed close to base opposite to contour of chain roll or sprocket wheel, where change over of base to flank is represented by level
EP2677204A1 (en) * 2012-06-21 2013-12-25 Tai-Her Yang Chainwheel enabling positive rotational transmission and reverse rotational sliding features
EP2677205A1 (en) * 2012-06-21 2013-12-25 Tai-Her Yang Anti-detachment chainwheel having forced recessed face at chain tooth root portion
CN103511591A (en) * 2012-06-21 2014-01-15 杨泰和 Chainwheel enabling positive rotational transmission and reverse rotational sliding features
WO2017034428A1 (en) * 2015-08-25 2017-03-02 Miranda & Irmão, Lda. Transmission system and its use
US10780944B2 (en) 2015-08-25 2020-09-22 Miranda & Irmao, Lda. Transmission system and its use

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