JPS6237005Y2 - - Google Patents
Info
- Publication number
- JPS6237005Y2 JPS6237005Y2 JP420884U JP420884U JPS6237005Y2 JP S6237005 Y2 JPS6237005 Y2 JP S6237005Y2 JP 420884 U JP420884 U JP 420884U JP 420884 U JP420884 U JP 420884U JP S6237005 Y2 JPS6237005 Y2 JP S6237005Y2
- Authority
- JP
- Japan
- Prior art keywords
- base rod
- chain
- piece
- slide
- chain tensioner
- 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
- 229920003002 synthetic resin Polymers 0.000 claims description 3
- 239000000057 synthetic resin Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000009191 jumping Effects 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229910000677 High-carbon steel Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
Description
【考案の詳細な説明】
本考案は、内燃機関のチエーン伝達機構等に用
いられるチエーンテンシヨナに関するものであ
る。[Detailed Description of the Invention] The present invention relates to a chain tensioner used in a chain transmission mechanism of an internal combustion engine.
内燃機関のチエーンによる動力伝達機構には、
チエーンを押圧した状態で維持し、チエーンの異
常振動を防止するためのテンシヨナが設けられて
いるが、従来のテンシヨナは第１図に示すごと
く、焼入れ高炭素鋼のばね材からなる基部材ａの
片面にゴム等の弾性材ｂを介して四弗化エチレン
樹脂のスライド面ｃを構成したものが使われてお
り、高価になる問題を有していた。 The chain power transmission mechanism of an internal combustion engine includes:
A tensioner is provided to maintain the chain in a pressed state and prevent abnormal vibration of the chain, but as shown in Figure 1, the conventional tensioner has a base member a made of hardened high carbon steel spring material. A sliding surface c made of tetrafluoroethylene resin is used on one side with an elastic material b such as rubber interposed therebetween, which has the problem of being expensive.
本考案は、上記問題に鑑み、安価なテンシヨナ
を提供する目的でなされたものであり、自己潤滑
性に富み、かつ適度な粘弾性的特性と機械的強度
を有する樹脂により一体成形して得られるテンシ
ヨナを提供せんとするものである。 In view of the above-mentioned problems, the present invention was made with the aim of providing an inexpensive tensioner, which is obtained by integrally molding a resin that is highly self-lubricating and has appropriate viscoelastic properties and mechanical strength. It is intended to provide a tensioner.
以下、本考案の一実施例を図面にしたがつて説
明すると、第２図はテンシヨナの正面図、第３図
は同要部の断面図である。本考案のテンシヨナは
ポリアミド樹脂等の、自己潤滑性に富み、適度な
粘弾性的特性と機械的強度を有する合成樹脂によ
つて一体成形するもので、その形状は係合端部
１，１間を連結する基桿部２は外に向つて緩く彎
曲した板バネ状を呈し、該基桿部２の外側に、桿
部２より大曲率になる外側に彎曲したスライド部
３を、その両端を係合端部１，１にて上記基桿部
２と結合して構成する。当該スライド部３は基桿
部１の肉厚より薄く形成される。また４は上記基
桿部２とスライド部３の中央間に介装形成したリ
ブ構造であり、該リブ構造４は薄板状に成形され
た平行片５の両端に屈曲形成した連結端片６，６
を基桿部２の中央部と固着するとともに、平行片
５の中央から連結端片６と反対方向に延びる垂直
連結片７をスライド部３の中央部内面を連結して
なる。 An embodiment of the present invention will be described below with reference to the drawings. FIG. 2 is a front view of the tensioner, and FIG. 3 is a sectional view of the main part thereof. The tensioner of the present invention is integrally molded from a synthetic resin such as polyamide resin that is highly self-lubricating and has appropriate viscoelastic properties and mechanical strength, and its shape is between the engaging ends 1 and 1. The base rod part 2 that connects the base rod part 2 has a leaf spring shape that is gently curved outward, and a slide part 3 that is curved outward and has a larger curvature than the rod part 2 is attached to the outside of the base rod part 2. The engaging end portions 1, 1 are connected to the base rod portion 2. The slide portion 3 is formed thinner than the wall thickness of the base rod portion 1. Reference numeral 4 denotes a rib structure interposed between the base rod portion 2 and the slide portion 3, and the rib structure 4 includes connecting end pieces 6 bent at both ends of a parallel piece 5 formed into a thin plate shape. 6
is fixed to the central part of the base rod part 2, and a vertical connecting piece 7 extending from the center of the parallel piece 5 in the opposite direction to the connecting end piece 6 connects the inner surface of the central part of the slide part 3.
上記構成になるチエーンテンシヨナは第４図に
示すごとくチエーンスプロケツト８，９間に架設
したチエーン１０に対してチエーンテンシヨナの
係合端部１，１をホルダー１１，１２間に挟持
し、チエーン１０の側方からスライド部３を押圧
弾性付勢して使用するもので、チエーン１０は適
宜張力によつて張設せしめられ、スライド部３に
沿つて摺動するようになる。 As shown in FIG. 4, the chain tensioner having the above structure has the engaging ends 1, 1 of the chain tensioner held between the holders 11, 12 with respect to the chain 10 installed between the chain sprockets 8, 9. The chain 10 is used by pressing and elastically biasing the slide part 3 from the side of the chain 10, and the chain 10 is tensioned appropriately and slides along the slide part 3.
上記取り付け状態でチエーン１０が回転駆動せ
しめられ、チエーンテンシヨナのスライド部３に
沿つて滑動すると、該スライド部３はチエーン１
０の跳躍現象により応力を受けて加振され、振動
状態になるが、該スライド部３はリブ構造４を介
して基桿部２と連結されているため、該リブ構造
４によつてスライド部３の振動が減衰せしめられ
る。すなわちリブ構造４は、平行片５の長さがス
ライド部３の長さと異なるため、スライド部３と
の振動周期が異なり、減衰作用を発揮するもの
で、これによりチエーン１０は強制的に跳躍現象
を阻止せしめられる。 When the chain 10 is rotationally driven in the above-mentioned attached state and slides along the slide portion 3 of the chain tensioner, the slide portion 3
Due to the jumping phenomenon of 0, the slide part 3 is subjected to stress and vibrated, and becomes vibrating. However, since the slide part 3 is connected to the base part 2 through the rib structure 4, the slide part 3 is 3 vibrations are damped. That is, in the rib structure 4, since the length of the parallel piece 5 is different from the length of the slide part 3, the vibration period is different from that of the slide part 3, and a damping effect is exerted, thereby forcing the chain 10 to cause a jumping phenomenon. be prevented from doing so.
加えて基桿部２はスライド部３と両係合端部
１，１を介して一体に構成しているため、チエー
ンテンシヨナ全体の強度を維持すると同時にスラ
イド部３に対しての二重板バネの効果を有するよ
うになるもので、チエーン１０に対して適正な弾
性押圧力を付与するようになる。 In addition, since the base rod part 2 is integrated with the slide part 3 through both engaging ends 1, 1, the strength of the entire chain tensioner is maintained, and at the same time a double plate is provided for the slide part 3. It has a spring effect and applies an appropriate elastic pressing force to the chain 10.
第４図の実施例においては、リブ構造４が平行
片５の両端を基桿部２に連結され、平行片５の中
央部をスライド部３に連結されているが、平行片
５の両端をスライド部３に連結され、平行片５の
中央部を基桿部２に連結される構造であつても同
様の機能を果すことができる。 In the embodiment shown in FIG. 4, the rib structure 4 connects both ends of the parallel piece 5 to the base rod part 2, and the central part of the parallel piece 5 to the slide part 3. A similar function can be achieved even if the structure is such that the parallel piece 5 is connected to the slide part 3 and the central part of the parallel piece 5 is connected to the base rod part 2.
第５図の他の実施例においては、スライド部３
と基桿部２の間に介在するリブ構造４が略Ｓ字形
状を呈して複数個の配列になるもので、第４図の
実施例と同様の機能をもたらすことができ、さら
に本実施例におけるＳ字形状の態様に限定され
ず、略円弧形状等の屈曲構造に形成することがで
きる。 In another embodiment shown in FIG.
The rib structure 4 interposed between the base rod portion 2 and the base rod portion 2 has a substantially S-shape and is arranged in a plurality of rib structures, and can provide the same function as the embodiment shown in FIG. It is not limited to the S-shaped form shown in , but can be formed into a bent structure such as a substantially circular arc shape.
以上述べたごとく、本考案のチエーンテンシヨ
ナは合成樹脂により一体成形した形状により従来
のチエーンテンシヨナよりもすぐれた特性を有す
る構造体を安価に提供できるようになるもので、
本考案の実用的効果はきわめて大きい。 As mentioned above, the chain tensioner of the present invention is integrally molded from synthetic resin, making it possible to provide a structure with superior properties at a lower cost than conventional chain tensioners.
The practical effects of this invention are extremely large.
第１図は従来のチエーンテンシヨナの正面図、
第２図は本考案のチエーンテンシヨナの一実施例
を示す正面図、第３図は第２図におけるＡ−Ａ線
断面図、第４図は使用状態を示す正面図、第５図
は本考案のチエーンテンシヨナの他の実施例を示
す正面図である。
１……係合端部、２……基桿部、３……スライ
ド部、４……リブ構造、５……平行片、６……連
結端片、７……垂直連結片、１０……チエーン。
Figure 1 is a front view of a conventional chain tensioner.
Fig. 2 is a front view showing one embodiment of the chain tensioner of the present invention, Fig. 3 is a sectional view taken along line A-A in Fig. 2, Fig. 4 is a front view showing the state of use, and Fig. 5 is the main body. FIG. 7 is a front view showing another embodiment of the invented chain tensioner. DESCRIPTION OF SYMBOLS 1... Engagement end part, 2... Base rod part, 3... Slide part, 4... Rib structure, 5... Parallel piece, 6... Connection end piece, 7... Vertical connection piece, 10... Chain.
Claims (1)
ライド部と、該スライド部の両端間に架設する
基桿部と上記スライド部と基桿部を弾性的に連
結するリブ構造とよりなり、合成樹脂をもつて
一体成形されたことを特徴とするチエーンテン
シヨナ。 (2) リブ構造が、スライド部と基桿部の中間に配
置された平行片と、該平行片の両端を上記基桿
部およびスライド部の一方に連結する連結端片
と、上記平行片の中央部を上記スライド部およ
び基桿部の他方に連結する垂直連結片とよりな
ることを特徴とする実用新案登録請求の範囲第
１項記載のチエーンテンシヨナ。 (3) リブ構造が、一端をスライド部に連結され、
他端を基桿部に連結された屈曲片であることを
特徴とする実用新案登録請求の範囲第１項記載
のチエーンテンシヨナ。[Scope of Claim for Utility Model Registration] (1) A sliding part that protrudes from the chain and has an appropriately arcuate shape, a base rod part installed between both ends of the slide part, and an elastic connection between the slide part and the base rod part. A chain tensioner that has a rib structure and is integrally molded from synthetic resin. (2) The rib structure includes a parallel piece placed between the slide part and the base rod part, a connecting end piece that connects both ends of the parallel piece to one of the base rod part and the slide part, and a connecting end piece of the parallel piece. The chain tensioner according to claim 1, characterized in that the chain tensioner comprises a vertical connecting piece that connects the central portion to the other of the slide portion and the base rod portion. (3) The rib structure is connected at one end to the slide part,
The chain tensioner according to claim 1, which is a registered utility model, characterized in that the chain tensioner is a bent piece whose other end is connected to the base rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP420884U JPS60116449U (en) | 1984-01-18 | 1984-01-18 | chain tensioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP420884U JPS60116449U (en) | 1984-01-18 | 1984-01-18 | chain tensioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60116449U JPS60116449U (en) | 1985-08-06 |
| JPS6237005Y2 true JPS6237005Y2 (en) | 1987-09-21 |
Family
ID=30479561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP420884U Granted JPS60116449U (en) | 1984-01-18 | 1984-01-18 | chain tensioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60116449U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7641577B2 (en) * | 2005-06-28 | 2010-01-05 | Borgwarner Inc. | Mechanical chain tensioner with compliant blade spring |
-
1984
- 1984-01-18 JP JP420884U patent/JPS60116449U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60116449U (en) | 1985-08-06 |
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