JPH0311154U - - Google Patents
Info
- Publication number
- JPH0311154U JPH0311154U JP7119489U JP7119489U JPH0311154U JP H0311154 U JPH0311154 U JP H0311154U JP 7119489 U JP7119489 U JP 7119489U JP 7119489 U JP7119489 U JP 7119489U JP H0311154 U JPH0311154 U JP H0311154U
- Authority
- JP
- Japan
- Prior art keywords
- fixed
- swinging member
- fixed shaft
- swinging
- autotensioner
- 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.)
- Granted
Links
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 238000013016 damping Methods 0.000 claims 4
- 239000007787 solid Substances 0.000 claims 4
- 239000003566 sealing material Substances 0.000 claims 3
- 239000000758 substrate Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H7/10—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley
- F16H7/12—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley
- F16H7/1254—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley without vibration damping means
- F16H7/1281—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley without vibration damping means where the axis of the pulley moves along a substantially circular path
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Description
第１図は本考案の第一実施例を示す断面図、第
２図は本考案の第二実施例を示す、第１図のＡ部
に相当する断面図、第３図は本考案の第三実施例
を示す、ケーシング片同士の合わせ目部分を示す
断面図、第４図はオートテンシヨナを付設したエ
ンジンをタイミングベルト駆動機構を示す正面図
、第５図は従来のオートテンシヨナの１例を示す
、第１図同様の図である。
１……ベルト、２……駆動プーリ、３……従動
プーリ、４……ガイドプーリ、５……テンシヨン
プーリ、６……枢軸、７……揺動部材、８……は
ね、９……ボルト、１０……固定軸、１１……基
板、１２……緩衝筒、１３……保持筒、１４……
スリーブ、１５……ハウジング、１６……捩りコ
イルばね、１７……固定軸、１８……第一ハウジ
ング片、１８……底部、１８ｂ……周壁部、１９
……揺動部材、２０……揺動筒、２１……滑り軸
受、２２……第二のハウジング片、２２ａ……底
部、２３……捩りコイルばね、２４……ゴム筒、
２５……ハウジング、２６……固定部材、２７…
…頭部、２８……座板、２９……ラビリンスシー
ル部材、３０……凹部、３１……第一の係止部、
３２……第二の係止部、３３……凹部、３４……
空間、３５……ラビリンスシール、３６……腕片
、３７……枢軸、３８……ボルト、３９……転が
り軸受、４０，４１……Ｏリング。
Fig. 1 is a sectional view showing a first embodiment of the present invention, Fig. 2 is a sectional view showing a second embodiment of the invention, corresponding to section A in Fig. 1, and Fig. 3 is a sectional view showing a second embodiment of the invention. FIG. 4 is a front view showing the timing belt drive mechanism of an engine equipped with an autotensioner, and FIG. 2 is a diagram similar to FIG. 1, showing an example; FIG. DESCRIPTION OF SYMBOLS 1... Belt, 2... Driving pulley, 3... Driven pulley, 4... Guide pulley, 5... Tension pulley, 6... Pivot, 7... Swinging member, 8... Spring, 9... ... Bolt, 10 ... Fixed shaft, 11 ... Board, 12 ... Buffer cylinder, 13 ... Holding cylinder, 14 ...
Sleeve, 15... Housing, 16... Torsion coil spring, 17... Fixed shaft, 18... First housing piece, 18... Bottom, 18b... Peripheral wall part, 19
... Swinging member, 20 ... Swing tube, 21 ... Sliding bearing, 22 ... Second housing piece, 22a ... Bottom, 23 ... Torsion coil spring, 24 ... Rubber cylinder,
25...Housing, 26...Fixing member, 27...
... head, 28 ... seat plate, 29 ... labyrinth seal member, 30 ... recess, 31 ... first locking part,
32... second locking part, 33... recess, 34...
Space, 35... Labyrinth seal, 36... Arm piece, 37... Pivot, 38... Bolt, 39... Rolling bearing, 40, 41... O-ring.
Claims (1)
トによつて基板に固定される中空管状の固定軸と
、滑り軸受を介してこの固定軸に外嵌される揺動
筒を有し、上記固定軸を中心として揺動する揺動
部材と、この揺動部材の一部に設けられた固定軸
と平行な枢軸によつて、揺動部材に枢支されたテ
ンシヨンプーリと、一端に形成した第一の係止部
を上記固定部材に、他端に形成した第二の係止部
を揺動部材にそれぞれ係止し、上記テンシヨンプ
ーリをベルトに押し付ける方向の弾力を、揺動部
材に対して付与する捩りコイルばねとを有するオ
ートテンシヨナに於いて、上記固定軸の外周面と
揺動筒の内周面との間で、滑り軸受を設けた空間
に通じる部分に、シール材を設けた事を特徴とす
るオートテンシヨナ。 (2) ボルトの頭部に支承された円形の座板の外
周縁と、揺動筒の開口部内周面との間にシール材
が設けられている、請求項１に記載のオートテン
シヨナ。 (3) 固定部材に設けられ、内側を挿通したボル
トによつて基板に固定される中空管状の固定軸と
、滑り軸受を介してこの固定軸に外嵌される揺動
筒を有し、上記固定軸を中心として揺動する揺動
部材と、この揺動部材の一部に設けられた固定軸
と平行な枢軸によつて、揺動部材に枢支されたテ
ンシヨンプーリと、一端に形成した第一の係止部
を上記固定部材に、他端に形成した第二の係止部
を揺動部材にそれぞれ係止し、上記テンシヨンプ
ーリをベルトに押し付ける方向の弾力を、揺動部
材に対して付与する捩りコイルばねとを有するオ
ートテンシヨナに於いて、上記固定軸側に固定の
第一のハウジング片と上記揺動部材側に固定の第
二のハウジング片とにより構成されるハウジング
の内側で、捩りコイルばねを設けた空間に通じる
部分に、シール材を設けた事を特徴とするオート
テンシヨナ。 (4) 揺動部材と固定部材との互いに対向する周
面同士の間に、軸方向一端を上記揺動部材に、軸
方向他端を上記固定部材に、それぞれ結合した固
体減衰装置を具え、且つ、使用時に於ける上記ば
ねの変形量と固体減衰装置の変形量とが異なる様
に、上記両変形量を互いに独立して設定した、請
求項１〜３の何れかに記載のオートテンシヨナ。 (5) 固体減衰装置が円筒状にゴム筒であり、小
径の固定軸と、中径のゴム筒と、大径の捩りコイ
ルばねとが、互いに同心に配置されている、請求
項４に記載のオートテンシヨナ。[Claims for Utility Model Registration] (1) A hollow tubular fixed shaft that is provided on the fixed member and fixed to the board by a bolt inserted through the inside, and that is fitted onto the outside of the fixed shaft via a sliding bearing. A swinging member having a swinging tube and swinging around the fixed shaft, and a pivot shaft parallel to the fixed shaft provided on a part of the swinging member, the swinging member being pivotally supported by the swinging member. A tension pulley and a first locking portion formed at one end are locked to the fixed member, a second locking portion formed at the other end is locked to the swinging member, and the tension pulley is pressed against the belt. In an autotensioner having a torsion coil spring that imparts directional elasticity to a swinging member, a sliding bearing is provided between the outer peripheral surface of the fixed shaft and the inner peripheral surface of the swinging cylinder. An autotensioner characterized by having a sealing material installed in the part leading to the space. (2) The autotensioner according to claim 1, wherein a sealing material is provided between the outer peripheral edge of the circular seat plate supported on the head of the bolt and the inner peripheral surface of the opening of the swing cylinder. (3) A hollow tubular fixed shaft provided on the fixed member and fixed to the substrate by a bolt inserted through the inside, and a swing cylinder fitted externally to the fixed shaft via a sliding bearing, and the above-mentioned A swinging member that swings around a fixed shaft, a tension pulley that is pivotally supported on the swinging member by a pivot parallel to the fixed shaft provided on a part of the swinging member, and a tension pulley formed at one end. The first locking portion formed at the other end is locked to the fixed member, and the second locking portion formed at the other end is locked to the swinging member, and the elasticity in the direction of pressing the tension pulley against the belt is applied to the swinging member. In an autotensioner having a torsion coil spring applied to the fixed shaft, the housing includes a first housing piece fixed to the fixed shaft side and a second housing piece fixed to the swinging member side. An auto tensioner characterized by having a sealing material provided inside the part that communicates with the space in which the torsion coil spring is provided. (4) A solid damping device is provided between the mutually opposing circumferential surfaces of the swinging member and the fixed member, with one axial end coupled to the swinging member and the other axial end coupled to the fixed member, The autotensioner according to any one of claims 1 to 3, wherein the amount of deformation of the spring and the amount of deformation of the solid damping device are set independently of each other so that the amount of deformation of the spring and the amount of deformation of the solid damping device are different during use. . (5) The solid damping device is a cylindrical rubber tube, and the small-diameter fixed shaft, the medium-diameter rubber tube, and the large-diameter torsion coil spring are arranged concentrically with each other. auto tensioner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989071194U JP2516335Y2 (en) | 1989-06-20 | 1989-06-20 | Auto tensioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989071194U JP2516335Y2 (en) | 1989-06-20 | 1989-06-20 | Auto tensioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0311154U true JPH0311154U (en) | 1991-02-04 |
| JP2516335Y2 JP2516335Y2 (en) | 1996-11-06 |
Family
ID=31608006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989071194U Expired - Lifetime JP2516335Y2 (en) | 1989-06-20 | 1989-06-20 | Auto tensioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2516335Y2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005059405A1 (en) * | 2003-12-16 | 2005-06-30 | Ntn Corporation | Tension adjusting device for auxiliary machine driving belts |
| JP2006162006A (en) * | 2004-12-09 | 2006-06-22 | Jtekt Corp | Auto tensioner |
| JP2011509388A (en) * | 2008-01-08 | 2011-03-24 | クロイズ ギア アンド プロダクツ インコーポレイテッド | Mooring fastener device for chain guide or tensioner arm |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63147957U (en) * | 1987-03-19 | 1988-09-29 |
-
1989
- 1989-06-20 JP JP1989071194U patent/JP2516335Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63147957U (en) * | 1987-03-19 | 1988-09-29 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005059405A1 (en) * | 2003-12-16 | 2005-06-30 | Ntn Corporation | Tension adjusting device for auxiliary machine driving belts |
| CN100441912C (en) * | 2003-12-16 | 2008-12-10 | Ntn株式会社 | Tension adjusting device for auxiliary machine driving belts |
| JP2006162006A (en) * | 2004-12-09 | 2006-06-22 | Jtekt Corp | Auto tensioner |
| JP4687090B2 (en) * | 2004-12-09 | 2011-05-25 | 株式会社ジェイテクト | Auto tensioner |
| JP2011509388A (en) * | 2008-01-08 | 2011-03-24 | クロイズ ギア アンド プロダクツ インコーポレイテッド | Mooring fastener device for chain guide or tensioner arm |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2516335Y2 (en) | 1996-11-06 |
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