JPH03186642A - Belt tension device of internal combustion engine - Google Patents

Belt tension device of internal combustion engine

Info

Publication number
JPH03186642A
JPH03186642A JP32397789A JP32397789A JPH03186642A JP H03186642 A JPH03186642 A JP H03186642A JP 32397789 A JP32397789 A JP 32397789A JP 32397789 A JP32397789 A JP 32397789A JP H03186642 A JPH03186642 A JP H03186642A
Authority
JP
Japan
Prior art keywords
stopper
nut
shaft
plate
belt
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
Application number
JP32397789A
Other languages
Japanese (ja)
Other versions
JP2941321B2 (en
Inventor
Norihiko Kasahara
笠原　則彦
Katsuya Yamamoto
勝也 山本
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.)
UD Trucks Corp
Original Assignee
UD Trucks Corp
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 UD Trucks Corp filed Critical UD Trucks Corp
Priority to JP1323977A priority Critical patent/JP2941321B2/en
Publication of JPH03186642A publication Critical patent/JPH03186642A/en
Application granted granted Critical
Publication of JP2941321B2 publication Critical patent/JP2941321B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B67/00—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
    • F02B67/04—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus
    • F02B67/06—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus driven by means of chains, belts, or like endless members
    • 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
    • F16H2007/0802—Actuators for final output members
    • F16H2007/0808—Extension coil springs
    • 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
    • F16H2007/0863—Finally actuated members, e.g. constructional details thereof
    • F16H2007/0874—Two or more finally actuated members
    • 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
    • F16H7/0829—Means for varying tension of belts, ropes, or chains with vibration damping means
    • 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
    • F16H7/14—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of a driving or driven pulley

Landscapes

  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)

Abstract

PURPOSE:To eliminate layout restriction of an alternator with tension adjusting work facilitated by connecting one end of a damper, provided with a spring, on an end part of an adjust shaft and the other end to the arm of a tension pulley. CONSTITUTION:An adjust shaft 32 is inserted through a stopper plate 24, the second stopper 39 is brought into contact with the stopper plate 24, an adjust nut 30 is left-hand rotated and screwed to the shaft 32 and the nut 30, when it comes in contact with a mounting plate 25, is right-hand rotated and tightened until the first stopper 38 comes in contact with the stopper plate 24. Next the nut 30 is left-hand rotated and loosened until the second stopper 39 comes in contact with the lock plate 27 of the stopper plate 24, and in this condition, the shaft 24 and an arm 10 are connected to each other by a damper 40. The nut 30 is right-hand rotated until the first stopper 38 comes in contact with the stopper plate 24, and when the shaft 32 is moved to a pulley side, the arm 10 is pressed by the damper 40 and turned to give predetermined tension to a belt 14.

Description

【発明の詳細な説明】 ［産業上の利用分野コ 本発明は、内燃機関の回転力を補機に伝達するためのプ
ーリに掛け渡されたベルトに所定のテンションを与える
ための内燃機関のベルトテンション装置に関する。Detailed Description of the Invention [Industrial Field of Application] The present invention relates to an internal combustion engine belt for applying a predetermined tension to a belt stretched around a pulley for transmitting the rotational force of the internal combustion engine to an auxiliary machine. Relating to a tension device.

［従来の技術］ 周知のように、内燃機関の補機、例えばオルタネータや
カークーラコンプレッサを駆動するためのプーリに掛け
渡されたベルトには、ベルト着脱作業時にベルトを緩め
ると共に、常時はベルトに所定のテンションを与えるベ
ルトテンション装置が設けられている。[Prior Art] As is well known, a belt that is wrapped around a pulley to drive auxiliary equipment of an internal combustion engine, such as an alternator or a car cooler compressor, has a belt that is loosened when attaching or detaching the belt, and a belt that is normally attached to the belt. A belt tensioning device is provided to provide a predetermined tension.

その−例を第１１図について説明すると、クランクプー
リ１、カークーラコンプレッサのプーリ２、オルタネー
タ３のプーリ４及びその他の補機のプーリ１２．１３に
掛け渡されたベルト１４には、全体を符号Ａで示すベル
トテンション装置が設けられている。An example of this will be explained with reference to FIG. A belt tensioning device, designated A, is provided.

その装置Ａは、テンションプーリ９と、アジャストシャ
フト８とから概略構成されている。そのテンションプー
リ９は、一端が図示しないエンジン本体に設けられた固
定部材に枢着されたアーム１０ａの中程に回転自在に支
持され、アーム１０の他端と固定部材との間には、プー
リ９をベルト１４側に付勢する圧縮スプリング１１が介
装されている。他方、オルタネータ３の両側には、フラ
ンジ部５．６が設けられ、一方のフランジ部５はボルト
ａにより固定部材に枢着され、他方のフランジ部にはボ
ス部７がボルトｂにより固着されている。前記アジャス
トシャフト８は、このボス部７に挿通され、シャフト８
のねじ部に螺合するダブルナツトｄＳｅによりボス部７
に固定され、スプリング１１側の端部は、ボルトＣによ
り固定部材に枢着されている。The device A is generally composed of a tension pulley 9 and an adjustment shaft 8. The tension pulley 9 is rotatably supported in the middle of an arm 10a whose one end is pivotally connected to a fixing member provided on the engine body (not shown), and between the other end of the arm 10 and the fixing member there is a pulley. A compression spring 11 is interposed to urge the belt 9 toward the belt 14. On the other hand, flange portions 5.6 are provided on both sides of the alternator 3, one flange portion 5 is pivotally connected to a fixing member by bolts a, and a boss portion 7 is fixed to the other flange portion by bolts b. There is. The adjustment shaft 8 is inserted through this boss portion 7, and the shaft 8
Boss part 7 is screwed into the screw part of
The end on the spring 11 side is pivotally connected to the fixing member by a bolt C.

このように構成され、ベルト装着時はオルタネータを鎖
線位置３Ａに回動し、ベルト１４にかかるテンションを
小さくしてベルト１４を装着したのち、オルタネータ３
を実線位置に回動しベルト１４に所定のテンションを与
えるようになっている。With this structure, when the belt is attached, the alternator is rotated to the chain line position 3A, the tension applied to the belt 14 is reduced, and after the belt 14 is attached, the alternator 3
is rotated to the solid line position to apply a predetermined tension to the belt 14.

［発明が解決しようとする課題］ しかしながら、オルタネータ３を回動してベルト１４の
テンションを調整するには、ボルトａ〜Ｃ及びナツトｄ
、ｅを緩めたり締め込んだりする必要があり、調整作業
が面倒で、作業時間が長い。[Problem to be Solved by the Invention] However, in order to rotate the alternator 3 and adjust the tension of the belt 14, bolts a to C and nuts d are required.
, e must be loosened or tightened, making the adjustment work troublesome and taking a long time.

また、オルタネータ３の回動範囲が広いので、レイアウ
トのスペースが大きくなり、したがって、大出力の大型
のオルタネータを装着することができない。Furthermore, since the rotation range of the alternator 3 is wide, the layout space becomes large, and therefore a large alternator with a high output cannot be installed.

ベルトテンション装置に関し本出願人は実開昭６４−４
５０５２号公報において、目盛りを付した板材を、テン
ションプーリの外周と交わるようにエンジン本体のブラ
ケットの位置に設け、テンションの大きさを目盛りによ
り表示できるようにする技術を提案している。この提案
自体は有効なものであるが、しかし、目盛りを読み取っ
て調整する作業は煩しい。Concerning the belt tension device, the present applicant filed the Utility Model Application No. 64-4
Japanese Patent No. 5052 proposes a technique in which a plate with a scale is provided at a bracket of the engine body so as to intersect with the outer periphery of the tension pulley, so that the magnitude of the tension can be displayed using the scale. Although this proposal itself is effective, the work of reading and adjusting the scale is cumbersome.

本発明は、テンション調整作業が容易で、かつ、オルタ
ネータのレイアウトの制約をなくした内燃機関のベルト
テンション装置を提供することを目的としている。SUMMARY OF THE INVENTION An object of the present invention is to provide a belt tension device for an internal combustion engine that allows easy tension adjustment work and eliminates constraints on alternator layout.

［課題を解決するための手段］ 本発明によれば、内燃機関の回転力を補機に伝達するた
めのプーリに掛け渡されたベルトに所定のテンションを
与えるための内燃機関のベルトテンション装置において
、前記プーリにより駆動される補機の上部にブラケット
を取付けて該ブラケットにアジャストナツトを設け、該
アジャストナツトに螺合するねじ部を備えたシャフトを
設けて該シャフトにストッパを設けると共に、該シャフ
トの端部にスプリングを備えたダンパの一端を連結し、
該ダンパの他端をテンションブーりのアームに連結して
いる。[Means for Solving the Problems] According to the present invention, a belt tension device for an internal combustion engine is provided for applying a predetermined tension to a belt stretched around a pulley for transmitting the rotational force of the internal combustion engine to an auxiliary machine. , a bracket is attached to the upper part of the auxiliary machine driven by the pulley, an adjustment nut is provided on the bracket, a shaft is provided with a threaded portion that is screwed into the adjustment nut, a stopper is provided on the shaft, and the shaft is provided with a stopper. Connect one end of a damper with a spring to the end of the
The other end of the damper is connected to an arm of a tensioning booth.

前記ブラケットの中程及びテンションプーリに対向する
側にストッパプレート及び取付はプレートを立設してス
トッパプレートにアジャストシャフトを挿通ずる切欠部
を形成し、取付プレートに右ねじ孔を形成し、シャフト
のストッパプレートの両側にプーリ側の第２のストッパ
とこれに対向する側の第１のストッパとを間隔を設けて
形成すると共に、シャフトの端部を右ねじ孔に螺合する
アジャストナツトに形成した左ねじ孔に螺合するのが好
ましい。A stopper plate and a mounting plate are erected in the middle of the bracket and on the side facing the tension pulley, a notch is formed in the stopper plate through which the adjustment shaft is inserted, and a right-handed threaded hole is formed in the mounting plate to allow the shaft to be inserted. A second stopper on the pulley side and a first stopper on the opposite side are formed at intervals on both sides of the stopper plate, and the end of the shaft is formed into an adjustment nut to be screwed into a right-hand threaded hole. It is preferable to screw into the left-hand screw hole.

また、ダンパは、所定ストロークで伸縮自在な外筒及び
内筒と、両筒間に張設された圧縮スプリングとで構成す
るのが好ましい。Further, it is preferable that the damper is composed of an outer cylinder and an inner cylinder that are extendable and retractable with a predetermined stroke, and a compression spring stretched between the two cylinders.

［作用］ 上記のように構成された内燃機関のベルトテンション装
置においては、アジャストシャフトをストッパプレート
に挿通して第２のストッパをストッパプレートに当接し
、ナツトを左回転してシャフトに螺合し、ナツトが取付
プレートに当接したら、ナツトを右回転して第１のスト
ッパがストッパプレートに当接するまで締め込み、次い
で、ナツトを左回転し、第２のストッパがストッパプレ
ートに取付けたロックプレートに当接するまでナツトを
緩め、その状態で、アジャストシャフトとアームとをダ
ンパで連結する。この状態では、ダンパがナツト側に移
動しているので、アームはナツト側に回動され、したが
って、ベルトに与えるテンションは小さく、容易にベル
トを各プーリ間に掛け渡すことができる。[Operation] In the internal combustion engine belt tension device configured as described above, the adjustment shaft is inserted through the stopper plate, the second stopper is brought into contact with the stopper plate, and the nut is rotated counterclockwise to be screwed onto the shaft. , once the nut contacts the mounting plate, turn the nut clockwise and tighten until the first stopper contacts the stopper plate, then rotate the nut counterclockwise until the second stopper touches the lock plate attached to the stopper plate. Loosen the nut until it touches the shaft, and in that state connect the adjustment shaft and arm with the damper. In this state, since the damper has moved toward the nut, the arm is rotated toward the nut, so that the tension applied to the belt is small, and the belt can be easily passed between the pulleys.

テンションを大きくする際は、ナツトを第１のストッパ
がストッパプレートに当接するまでナットを右回転し、
アジャストシャフトをプーリ側に移動すると、アームは
ダンパにより押されて回動し、ベルトに所定のテンショ
ンを与える。To increase the tension, rotate the nut clockwise until the first stopper contacts the stopper plate.
When the adjustment shaft is moved toward the pulley, the arm is pushed by the damper and rotates, applying a predetermined tension to the belt.

［実施例］ 以下図面を参照して本発明の詳細な説明する。[Example] The present invention will be described in detail below with reference to the drawings.

なお、第１図において第１１図に対応する部分について
は、同じ符号を付して重複説明を省略する。Note that parts in FIG. 1 that correspond to those in FIG. 11 are given the same reference numerals and redundant explanation will be omitted.

第１図において、テンションプーリ９は、一端がシリン
ダブロック１５に枢着されたアーム１０の他端に回転自
在に支持され、シリンダブロック１５に固設されたオル
タネータ３のフランジ部６には、テンションブラケット
２０が固設されている。そして、このブラケット２０の
プーリ９側に形成された長孔２３とアーム１０の中程と
の間には、全体を符号４０で示すダンパが介装されてい
る。In FIG. 1, a tension pulley 9 is rotatably supported by the other end of an arm 10 whose one end is pivotally connected to a cylinder block 15. A bracket 20 is fixedly installed. A damper, generally designated by reference numeral 40, is interposed between the elongated hole 23 formed on the pulley 9 side of the bracket 20 and the middle of the arm 10.

第２図において、ダンパ４０には、外筒４１と内筒４２
とがストロークＳの範囲で摺動自在に設けられ、両筒４
１．４２の間には圧縮スプリング４３が張設され、自由
長Ｌ１に形成されている。In FIG. 2, the damper 40 includes an outer cylinder 41 and an inner cylinder 42.
and are provided slidably within the range of stroke S, and both cylinders 4
A compression spring 43 is stretched between 1.42 and has a free length L1.

そして、外筒４１と内筒４２との端部には、それぞれ取
付孔４５．４７を備えた取付部４４．４６が一体に形成
されている。Mounting portions 44 and 46 each having mounting holes 45 and 47 are integrally formed at the ends of the outer cylinder 41 and the inner cylinder 42, respectively.

第３図ないし第５図において、ベルトテンションブラケ
ット２０は、上縁に折曲げ部２１ａが形成された平板状
の本体２１の一側面に突設されたＬ字状の取付部２２に
よりオルタネータ３のフランジ部６に固設されている。In FIGS. 3 to 5, the belt tension bracket 20 is attached to the alternator 3 by an L-shaped mounting portion 22 protruding from one side of a flat plate-like main body 21 with a bent portion 21a formed on the upper edge. It is fixed to the flange portion 6.

その本体２１の中心線り上のプーリ９側の端部には、長
孔２３が穿設されている。この本体２１の中程と長孔２
３に対向する端部には、それぞれ平板状のストッパプレ
ート２４及び取付プレート２５が中心線りに直角に立設
されている。その−方のプレート２４には、側方から中
心線り上方までの切欠部２６（第５図）が形成され、ま
た長孔２３側の側面には、切欠部２７ａ（第５図）が形
成されたロックプレート２７がボルト２８により固着さ
れている。他方、取付プレート２５には、中心線りの上
方に例えば外径２５ｍ１ピツチ２゜５１１Ｉ１１のねじ
孔２９（第６図）が設けられ、このねじ孔２９には、ア
ジャストナツト３０が螺合されている。そのナツト３０
には、例えば外径Ｌｏｗ、ピッチ１．５ｍｍの左ねじの
ねじ孔３１（第６図）が設けられ、このねじ孔３１には
、アジャストシャフト３２のねじ部３３が螺合されてい
る。このシャフト３２の軸部３４は、ボス部２４の切欠
部２７を通って直角に折曲げられ、その折曲げ部３５の
長孔２３を貫通した端部には、ねじ部３６が形成されて
いる。そして、折曲げ部３５の軸部３４側には、本体２
１の表面に当接するガイドリング３７が設けられている
。また、軸部３４にはプレート２４のナツト３０側の側
面に当接するリング状の第１のストッパ３８が固設され
、折曲げ部３５例の軸部３４の中程には、第２のストッ
パ３９が固設されている。そして、ダンパ１０は、取付
孔４５を介して折曲げ部３５に連結され、取付孔４７を
介してアーム１０の中程に連結されている。A long hole 23 is bored at the end of the main body 21 on the pulley 9 side on the center line. The middle of this main body 21 and the long hole 2
A flat stopper plate 24 and a flat mounting plate 25 are erected at right angles to the center line at the ends opposite to 3, respectively. A notch 26 (FIG. 5) is formed in the plate 24 on that side from the side to above the center line, and a notch 27a (FIG. 5) is formed in the side surface on the elongated hole 23 side. The lock plate 27 is fixed with bolts 28. On the other hand, the mounting plate 25 is provided with a screw hole 29 (Fig. 6) having an outer diameter of 25 m and a pitch of 2°511 I11, for example, above the center line, and an adjustment nut 30 is screwed into this screw hole 29. There is. That nut 30
is provided with a left-handed screw hole 31 (FIG. 6) having, for example, a low outer diameter and a pitch of 1.5 mm, and a threaded portion 33 of an adjustment shaft 32 is screwed into this screw hole 31. The shaft portion 34 of the shaft 32 is bent at a right angle through the notch 27 of the boss portion 24, and a threaded portion 36 is formed at the end of the bent portion 35 passing through the elongated hole 23. . The main body 2 is provided on the shaft portion 34 side of the bent portion 35.
A guide ring 37 that comes into contact with the surface of 1 is provided. Further, a ring-shaped first stopper 38 that comes into contact with the side surface of the plate 24 on the nut 30 side is fixed to the shaft portion 34, and a second stopper 38 is provided in the middle of the shaft portion 34 of the bent portion 35. 39 is fixedly installed. The damper 10 is connected to the bending portion 35 through a mounting hole 45 and to the middle of the arm 10 through a mounting hole 47.

第６図ないし第８図において、ナツト３０のねじ孔３（
の長さｌは、ナツト３０のねじ部の長さｌ、と、先端部
の長さ１２との和に等しく形成されている。また、第１
及び第２のストッパ２８．２９の内方間隔を１！３、ロ
ックプレート２７の厚さを１４、プレート２４の厚さを
ｌ、とすると、折曲げ部３５の長孔２３の左端部から右
方への移動距離１６は、 ｌｂ　＝Ａ’３　　　（１４＋Ｊ５）　・・・　（１）
で示され、また、ナツト３０のねじ孔３１をシャフト３
２のねじ部３３に螺合し、ナツト３０の先端部がプレー
ト２５に当接した時点から、ナツト３０のねじ部をプレ
ート２５のねじ孔２９に螺合し、ねじ込んで第１のスト
ッパ３８が左行してプレート２４に当接するまでのねじ
込み距離Ｉ１７は、１７＝（１６／（ナツト３０のピッ
チ２．５＋ねじ孔３１のピッチ１．５））Ｘナツト３０
のピッチ２．５＝０．６２５１６　・・・　（２）で示
されるように、寸法ｌ、〜ｌ、が決められている。6 to 8, the screw hole 3 of the nut 30 (
The length l is equal to the sum of the length l of the threaded portion of the nut 30 and the length 12 of the tip. Also, the first
If the inner distance between the second stoppers 28 and 29 is 1!3, the thickness of the lock plate 27 is 14, and the thickness of the plate 24 is l, then from the left end of the long hole 23 of the bent part 35 to the right The moving distance 16 in the direction is lb = A'3 (14 + J5) ... (1)
Also, the threaded hole 31 of the nut 30 is connected to the shaft 3.
From the time when the tip of the nut 30 contacts the plate 25, the threaded part of the nut 30 is screwed into the threaded hole 29 of the plate 25, and the first stopper 38 is screwed in. The screwing distance I17 to the left until it touches the plate 24 is 17 = (16/(pitch 2.5 of nut 30 + pitch 1.5 of screw hole 31)) x nut 30
Pitch 2.5=0.62516... As shown in (2), the dimensions l, ~l, are determined.

アジャストシャフト３２の組付けに際し第６図に示すよ
うに、シャフト３２の折曲げ部３５を長孔２３に挿通し
、軸部３４を回動してプレート２４の切欠部２６に挿入
し、第２のストッパ３９をプレート２４に当接して図示
しない治具等で固定する。次いで、ナツト３０を手回し
で左回転しシャフト３２にねじ込む。When assembling the adjustment shaft 32, as shown in FIG. The stopper 39 is brought into contact with the plate 24 and fixed with a jig or the like (not shown). Next, the nut 30 is turned counterclockwise by hand and screwed onto the shaft 32.

そして、第７図に示すようにナツト３０の先端部がプレ
ート２５に当接したら、ナツト３０を右回転してプレー
ト２５のねじ孔２９にねじ込む。When the tip of the nut 30 contacts the plate 25 as shown in FIG. 7, the nut 30 is rotated clockwise and screwed into the screw hole 29 of the plate 25.

この際、ナツト３０は１回転以内にねじ孔２９にねじ掛
りさせる。At this time, the nut 30 is screwed into the screw hole 29 within one rotation.

ナツト３０を更に右回転して第８図に示すように、シャ
フト３２が左行して第１のストッパ３８がプレート２４
に当接したら、ロックプレート２７の切欠部２７ａがシ
ャフト３２に当接するようにプレート２４に固定する。When the nut 30 is further rotated clockwise, the shaft 32 moves to the left and the first stopper 38 is moved to the plate 24 as shown in FIG.
, the lock plate 27 is fixed to the plate 24 so that the notch 27a of the lock plate 27 comes into contact with the shaft 32.

最後に、第９図に示すようにナツト３ｏを左回転して折
曲げ部３５を右行させ、第２のストッパ３９をロックプ
レート２７に当接させて終る。Finally, as shown in FIG. 9, the nut 3o is rotated counterclockwise to move the bent portion 35 to the right, and the second stopper 39 is brought into contact with the lock plate 27.

この状態において第１図に示すように、アジャストシャ
フト３２の折曲げ部３５と鎖線値１！４０Ａのアームと
を鎖線で示す自由長Ｌ１のダンパ４０Ａで連結する。し
たがって、テンションプーリは鎖線位置９Ａに位置し、
各プーリに掛け渡したベルト１４Ａに与えるテンション
は、小さく抑えられる。In this state, as shown in FIG. 1, the bent portion 35 of the adjustment shaft 32 and the arm having a chain line value of 1!40A are connected by a damper 40A having a free length L1 shown by a chain line. Therefore, the tension pulley is located at the chain line position 9A,
The tension applied to the belt 14A stretched around each pulley can be kept small.

ベルト１４に所定のテンションを与える際は、第８図に
示すようにアジャストナツト３０を右回転して折曲げ部
３５を左行させる。これにより、ダンパ４０は圧縮長Ｌ
２に圧縮されると共に、アーム１０を時計方向に回動し
、テンションプーリ９をベルト１４に圧接してベルト１
４に所定のテンションを与える。この際、ダンパ４０は
圧縮され、かつ、式１．２から、自由長Ｌ１と圧縮長Ｌ
２との差（ＬＬ−Ｌ２）は、アジャストナツト３０の調
整ねじ込み量１７より大きい。すなわち、小さい調整ね
じ込み量で広い範囲のテンションを調整することができ
る。また、テンションの値は、ストッパプレート２４が
、第１のストッパ３８に近い程大きいことを容易に読み
取ることができる。When applying a predetermined tension to the belt 14, the adjusting nut 30 is rotated clockwise to move the bent portion 35 to the left, as shown in FIG. As a result, the damper 40 has a compression length L
2, the arm 10 is rotated clockwise, the tension pulley 9 is pressed against the belt 14, and the belt 1 is compressed.
Apply a predetermined tension to 4. At this time, the damper 40 is compressed, and from equation 1.2, the free length L1 and the compressed length L
2 (LL-L2) is larger than the adjustment screw-in amount 17 of the adjustment nut 30. That is, the tension can be adjusted over a wide range with a small amount of adjustment screwing. Furthermore, it can be easily read that the closer the stopper plate 24 is to the first stopper 38, the greater the tension value is.

第１０図は本発明の別の実施例を示し、６角頭のナツト
３０ＡをＥ型リング３０ａによりプレート２５Ａに回転
自在に取付け、ねじ孔３１Ａ１ねじ部３３Ａのねじを２
条〜３条ねじに形成し、他を前記実施例と同様に構成し
た例である。この実施例は、ナツト３０Ａの回りにスペ
ースがある場合に好適であり同様の作用効果がある。FIG. 10 shows another embodiment of the present invention, in which a hexagonal head nut 30A is rotatably attached to a plate 25A by an E-shaped ring 30a, and screws in a screw hole 31A1 and a threaded portion 33A are
This is an example in which the thread is formed into a thread to three threads, and the rest is configured in the same manner as in the previous embodiment. This embodiment is suitable when there is space around the nut 30A, and has similar effects.

［発明の効果］ 本発明は、以上説明したように構成されているので、ベ
ルトの適正なテンション設定作業を容易に行い、作業性
を改善することができる。[Effects of the Invention] Since the present invention is configured as described above, it is possible to easily set the appropriate belt tension and improve workability.

また、オルタネータが固定されているので、同一スペー
スで大型大出力のオルタネータを取付けることができる
。Furthermore, since the alternator is fixed, a large, high-output alternator can be installed in the same space.

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

第１図は本発明の一実施例を示す全体構成図、第２図は
ダンパの一部を断面図で示した側面図、第３図はベルト
テンションブラケットを示す正面図、第４図及び第５図
はそれぞれ第３図の側面図及び右側面図、第６図ないし
第９図はそれぞれアジャストシャフトの組付は手順を示
す側面図、第１０図は本発明の別の実施例を示す要部の
側面図、第１１図は従来装置を示す全体構成図である。 １．２．４・・・プーリ　３・・・オルタネータ　　１
４・・・ベルト　　９・・・テンションプーリ　　１０
・・・アーム　　２０・・・ベルトテンションブラケッ
ト　　２１・・・本体２３・・・長孔　　２４・・・ス
トッパプレート２５・・・取付プレート　　２９・・・
ねじ孔　　３０・・・アジャストナツト　　３１・・・
ねじ孔　　３２・・・アジャストナツト　　３３・・・
ねじ部　　３８・・・第１のストッパ３９・・・第２の
ストッパ　　４０・・・ダンパ　　４３・・・圧縮スプ
リング 第９ 図 第１０図Fig. 1 is an overall configuration diagram showing one embodiment of the present invention, Fig. 2 is a side view showing a part of the damper in cross section, Fig. 3 is a front view showing a belt tension bracket, Figs. 5 is a side view and a right side view of FIG. 3, FIGS. 6 to 9 are side views showing the procedure for assembling the adjustment shaft, and FIG. 10 is a schematic diagram showing another embodiment of the present invention. FIG. 11 is an overall configuration diagram showing a conventional device. 1.2.4...Pulley 3...Alternator 1
4...Belt 9...Tension pulley 10
... Arm 20 ... Belt tension bracket 21 ... Main body 23 ... Long hole 24 ... Stopper plate 25 ... Mounting plate 29 ...
Screw hole 30... Adjustment nut 31...
Screw hole 32... Adjustment nut 33...
Threaded portion 38...First stopper 39...Second stopper 40...Damper 43...Compression spring Fig. 9 Fig. 10

Claims (1)

【特許請求の範囲】[Claims] 内燃機関の回転力を補機に伝達するためのプーリに掛け
渡されたベルトに所定のテンションを与えるための内燃
機関のベルトテンション装置において、前記プーリによ
り駆動される補機の上部にブラケットを取付けて該ブラ
ケットにアジャストナットを設け、該アジャストナット
に螺合するねじ部を備えたシャフトを設けて該シャフト
にストッパを設けると共に、該シャフトの端部にスプリ
ングを備えたダンパの一端を連結し、該ダンパの他端を
テンションプーリのアームに連結したことを特徴とする
内燃機関のベルトテンション装置。In a belt tension device for an internal combustion engine that applies a predetermined tension to a belt that is stretched over a pulley for transmitting the rotational force of the internal combustion engine to an auxiliary device, a bracket is attached to the top of the auxiliary device driven by the pulley. an adjustment nut is provided on the bracket, a shaft is provided with a threaded portion that engages with the adjustment nut, a stopper is provided on the shaft, and one end of a damper provided with a spring is connected to an end of the shaft; A belt tension device for an internal combustion engine, characterized in that the other end of the damper is connected to an arm of a tension pulley.
JP1323977A 1989-12-15 1989-12-15 Belt tension device for internal combustion engine Expired - Lifetime JP2941321B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1323977A JP2941321B2 (en) 1989-12-15 1989-12-15 Belt tension device for internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1323977A JP2941321B2 (en) 1989-12-15 1989-12-15 Belt tension device for internal combustion engine

Publications (2)

Publication Number Publication Date
JPH03186642A true JPH03186642A (en) 1991-08-14
JP2941321B2 JP2941321B2 (en) 1999-08-25

Family

ID=18160742

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1323977A Expired - Lifetime JP2941321B2 (en) 1989-12-15 1989-12-15 Belt tension device for internal combustion engine

Country Status (1)

Country Link
JP (1) JP2941321B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003078865A1 (en) * 2002-03-15 2003-09-25 The Gates Corporation Initial belt tensioner
WO2006061070A1 (en) * 2004-12-07 2006-06-15 Schaeffler Kg Tensioning device for a belt drive
DE102006023773A1 (en) * 2006-05-20 2007-11-22 Schaeffler Kg Belt drive for internal-combustion engine, has pulley with generator that is supported at shock absorber unit producing pretensioning force, and tensioning roller tiltably supported at lever arm, at which shock absorber unit is arranged
CN110594373A (en) * 2019-08-13 2019-12-20 青岛海尔洗衣机有限公司 Belt tensioning mechanism, clothes dryer and tensioning method of belt of clothes dryer

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003078865A1 (en) * 2002-03-15 2003-09-25 The Gates Corporation Initial belt tensioner
KR100730973B1 (en) * 2002-03-15 2007-06-22 더 게이츠 코포레이션 Initial belt tensioner
WO2006061070A1 (en) * 2004-12-07 2006-06-15 Schaeffler Kg Tensioning device for a belt drive
DE102006023773A1 (en) * 2006-05-20 2007-11-22 Schaeffler Kg Belt drive for internal-combustion engine, has pulley with generator that is supported at shock absorber unit producing pretensioning force, and tensioning roller tiltably supported at lever arm, at which shock absorber unit is arranged
CN110594373A (en) * 2019-08-13 2019-12-20 青岛海尔洗衣机有限公司 Belt tensioning mechanism, clothes dryer and tensioning method of belt of clothes dryer
CN110594373B (en) * 2019-08-13 2024-02-13 上海海尔洗涤电器有限公司 Belt tensioning mechanism, clothes dryer and belt tensioning method of clothes dryer

Also Published As

Publication number Publication date
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