JPS588211A - Assembling device for resilient plunger - Google Patents
Assembling device for resilient plungerInfo
- Publication number
- JPS588211A JPS588211A JP10496281A JP10496281A JPS588211A JP S588211 A JPS588211 A JP S588211A JP 10496281 A JP10496281 A JP 10496281A JP 10496281 A JP10496281 A JP 10496281A JP S588211 A JPS588211 A JP S588211A
- Authority
- JP
- Japan
- Prior art keywords
- plunger
- screw
- bolt
- tensioner
- spring
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
- B23P19/06—Screw or nut setting or loosening machines
-
- 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
- F16H7/18—Means for guiding or supporting belts, ropes, or chains
- F16H2007/185—Means for guiding or supporting belts, ropes, or chains the guiding surface in contact with the belt, rope or chain having particular shapes, structures or materials
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Assembly (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は常に矯出し方向に付勢されているプランジャの
付勢力を容易に抑、止且つ解放させる組付装置Ｋｌｌす
る。DETAILED DESCRIPTION OF THE INVENTION The present invention provides an assembly device Kll that easily suppresses, stops, and releases the biasing force of the plunger that is always biased in the straightening direction.
従来、飛出し付勢状態で用いられるプランジャは分解し
て飛出し付勢力を除去して運搬するか又は容器内に押し
込めて運搬し、他の機器に装着する際にはプランジャを
人手で押し込めた状態を保持しながら行っているが、例
えばエンジン用タイミングチェーンのテンショナー〇よ
うに１工ンジン組立の最終工１１忙お−てエンジンケー
スの外部よルテンショナーをエンジンに組付ける際には
、テンショナ一本体をエンジンケースに挿着したのちに
おいてプランジャの飛出し付勢力の阻止を解除しなけれ
ばならないので、前記従来の装着操作でけエンジンへの
テンショナー組付は困難である。テンショナーは第１図
に示すようにテンショナ一本体１に両端開口のプランジ
ャ室２を貫設し、該プランジャ室２の一端開口内周にバ
ネ圧縮用ネジ３を刻設しプランジャ室２内に回動不能で
軸方向に摺動自在にプランジャ４を装入し、皺プランジ
ャ４の母線方向一部周面に形成した平面部に円周方角の
多数の係止歯５を刻設するとと４ｋ、該係止歯５に係止
してプランジャ４の飛出し方向への摺動を許すよう忙ス
プリング６で係止方向に付勢され且つ、プランジャ４の
押し込め方向、すなわち飛出し方向の反対方向への摺動
を阻止する爪部材７をテンショナ一本体１に枢支し、プ
ランジャ４の飛出し先端にはタイミングチェーン（図示
せず）に押接してタイミングチェーンに一定の張力を与
えるテンショナーシュー（図示せず）が取付けられてお
シ、プランジャ４の軸方向に穿設した有底円孔８内に該
孔の長さより本長大な付勢バネとしてコイルバネ９を装
入し、ガスケット１０を介して前記バネ圧縮用ネジ５に
螺合するネジ部分１１を有するボルト１２をテンショナ
一本体１に螺着して、前記コイルバネ９をプランジャ４
とボルト１２の間に圧縮状態でプランジャ室２内に封入
する。したがって、プランジャ４は圧縮状ａにあゐコイ
ルバネ９によって常にプランジャ室２より飛出す方向に
付勢されており、プランジャ４の飛出しを人手等圧よっ
て押えておかなければプランジャはコイルバネ９によっ
てプランジャ室２外へ飛出シテプランジャ室２よ〕離脱
して了り。したがって、前述のよう忙エンジンケース内
に取付けられたタイミングチェーンへの組付けは困難忙
なる。Conventionally, plungers used in a protruding biased state were either disassembled and transported after removing the protruding biasing force, or were transported by being stuffed into a container, and when attached to other equipment, the plunger was manually pushed in. For example, when assembling the tensioner to the engine from the outside of the engine case, when assembling the tensioner to the engine, the tensioner must be It is difficult to assemble the tensioner to the engine using the conventional mounting operation, since it is necessary to release the blocking force of the plunger after the main body is inserted into the engine case. As shown in FIG. 1, the tensioner has a plunger chamber 2 with openings at both ends inserted through the tensioner main body 1, and a spring compression screw 3 cut into the inner periphery of the plunger chamber 2 with an opening at one end. When the plunger 4 is inserted so as to be immovable and freely slidable in the axial direction, and a large number of locking teeth 5 are carved in the circumferential direction on a flat part formed on a part of the peripheral surface in the generatrix direction of the wrinkled plunger 4, 4k is obtained. It is urged in the locking direction by the busy spring 6 so as to lock in the locking teeth 5 and allow the plunger 4 to slide in the protruding direction, and in the opposite direction to the pushing direction of the plunger 4, that is, the protruding direction. A claw member 7 is pivotally supported on the tensioner main body 1, and a tensioner shoe (not shown) is provided at the protruding tip of the plunger 4 to press against the timing chain (not shown) and apply a constant tension to the timing chain. ) is attached, a coil spring 9 is inserted into the bottomed circular hole 8 bored in the axial direction of the plunger 4 as a biasing spring whose main length is larger than the length of the hole, and the coil spring 9 is inserted through the gasket 10. A bolt 12 having a threaded portion 11 that is screwed into the spring compression screw 5 is screwed onto the tensioner main body 1, and the coil spring 9 is attached to the plunger 4.
and the bolt 12 in a compressed state within the plunger chamber 2. Therefore, the plunger 4 is in the compressed state a and is always biased in the direction of ejecting from the plunger chamber 2 by the coil spring 9. If the protrusion of the plunger 4 is not restrained by manual equal pressure, the plunger will be pushed out by the coil spring 9. Jump out of room 2 and leave the shite plunger room 2. Therefore, as described above, it is difficult and difficult to assemble the timing chain to the timing chain installed inside the busy engine case.
％にオートバイのエンジンにはエンジン組立て後膜エン
ジンケース外よりテンショナーを挿着するものであるか
ら、プランジャの飛出しを抑止【７なけれは挿着不能で
ある。そこで、テンショナーの組付けを家易にするため
次の提案がなされている。Since the tensioner is inserted into the motorcycle engine from outside the membrane engine case after the engine is assembled, it cannot be inserted without preventing the plunger from popping out. Therefore, the following proposal has been made to make it easier to assemble the tensioner.
（１）先づ、第１図に矢印方向で示すようにプランジャ
４を装入したテンショナ一本体１のみをエンジンケース
Ｉ！ｉに挿着してテンショナーシューをチェーンに当接
し、次にコイルバネを装入してボルト１２をテンショナ
一本体１に螺着しコイルバネ９を圧縮してプランジャ４
を飛出し方向に付勢して前記テンショナーシューをチェ
ーン忙押接せしめる組付方法。(1) First, as shown in the arrow direction in FIG. 1, the tensioner body 1 with the plunger 4 inserted therein is removed from the engine case I! i and put the tensioner shoe into contact with the chain, then insert the coil spring, screw the bolt 12 onto the tensioner body 1, compress the coil spring 9, and release the plunger 4.
An assembly method in which the tensioner shoe is forced into contact with the chain by urging the tensioner shoe in the protruding direction.
（２） 第２評に要部を示すようにプランジャ４に側
方ビン１３を突設し、該ビン１ＡｔＣ係脱する７ツク１
４をテンショナ一本体ＩＫ回動自在に枢着し、該７ツク
１４を側方ピン１３に係止してプランジャ４０飛出しを
防止した状態でエンジンケース丘に挿着し、タイミング
チェーンのバタツキ振動によってプランジャ４が矢印イ
方向に後退すること忙よシ側方ピン１３はフック１４の
テーパカム面１５を押下げて側方ビン１３より外され、
プランジャ４はコイルバネ９の付勢力により飛出し、タ
イミングチェーンを押接して該チェーンに一定の張力を
与える手段・
（３）第３図に示すように、テンショナ一本体１にプラ
ンジャ室２に貫通する螺孔を設けて該螺孔にボルト１６
を螺入してプランジャ４を押圧締着させてプランジャ４
の飛出しを防止し組付後において肢ボルト１６を螺脱す
ることによりプランジャ４０飛出しを解除すゐ手段。(2) As shown in the second review, a side bottle 13 is provided protruding from the plunger 4, and seven hooks 1 for engaging and disengaging the bottle 1AtC are provided.
4 is pivotally attached to the tensioner main body IK so that it can rotate freely, and the 7 hooks 14 are locked to the side pins 13 to prevent the plunger 40 from flying out, and the plunger 40 is inserted into the engine case hill to prevent flapping vibrations of the timing chain. As the plunger 4 moves backward in the direction of arrow A, the side pin 13 pushes down the tapered cam surface 15 of the hook 14 and is removed from the side pin 13.
The plunger 4 is pushed out by the biasing force of the coil spring 9, and is a means of pressing the timing chain to apply a certain tension to the chain. (3) As shown in FIG. A screw hole is provided and a bolt 16 is inserted into the screw hole.
Screw in and press and tighten the plunger 4.
Means for preventing the plunger 40 from popping out and releasing the plunger 40 from popping out by unscrewing the leg bolt 16 after assembly.
（萄 第４図に示すように、テンショナ一本体１に設け
た爪部材７０回動を阻止するストツノく１７を爪部材後
部に挿入して、プランジャ４が飛出さないように爪部材
７を係止歯５に起立係止させ、組付後にストッパ１７を
外してグランジ苺４の飛出しを可能圧する組付手段。(As shown in FIG. 4, a stopper 17 provided on the tensioner main body 1 that prevents the rotation of the claw member 70 is inserted into the rear part of the claw member, and the claw member 7 is engaged to prevent the plunger 4 from flying out.) An assembling means for vertically locking the stopper 5 and removing the stopper 17 after assembling to allow the grunge strawberries 4 to pop out.
しかし、前記（１）の方法はテンショナ一本体を組付後
にボルト１２をバネ９の力に抗して圧縮しながらテンシ
ョナ一本体のノ（ネ圧縮用ネジ３に螺着させねばならぬ
ので、ボルトのネジ部１１をテンショナ一本体のバネ圧
縮用ネジ５との螺着位置に合せる作業がバネ９の圧縮反
力に妨げられて容易に行えない。まえ前記（りの手段は
プランジャ４と共に側方ビン１５がエンジンケースＥに
挿入されるので、エンジン側に側方ビン１３の挿入空間
を必要として設計の自由度を制限し且つ余分の空間を確
保しなければならず、更に重要なことはテンショナ一本
体挿着後にチェーンの振動によってフック１４が側方ビ
ン１３よ）外れたか否かの確認ができない欠点があ）、
外れない場合はタイミングチェーンに所定の張力が付与
されないで、チェーンを懸回しているスブ党ケットホイ
ールよシ該チェーンが噛みはずれるおそれがあり、きわ
めて信頼性に乏しい。更ｋまた前記（３）の手段はテン
ショナ一本体１をエンジンケースＥに挿着後にボルト１
６を螺脱しなければならないので、少くと本ボルト長和
相当するボルト引抜き空間を余分に確保しなければなら
ぬ欠点があるばかりでなく、プランジャ４の飛出し付勢
力を抑止する力がプランジャの側面より作用するため極
めて弱く、テンショナーに用いられるコイルバネはその
弾性が大であることが一般であるから、確実にプランジ
ャ４の飛出しを抑止することは困難であり確実性に乏し
イ、前記（４）の手段は組立後のエンジンケース鵞内に
手又は道具を入れることができないのでテンショナ一本
体をエンジンケース忙挿着後、ストッパ１７を外すこと
は不可能である。However, in method (1), after the tensioner body is assembled, the bolt 12 must be compressed against the force of the spring 9 and screwed onto the compression screw 3 of the tensioner body. The work of aligning the threaded portion 11 of the bolt with the screwing position of the spring compression screw 5 of the tensioner main body is hindered by the compression reaction force of the spring 9 and cannot be easily performed. Since the side bin 15 is inserted into the engine case E, a space for inserting the side bin 13 is required on the engine side, which limits design freedom and requires securing extra space. There is a drawback that it is not possible to confirm whether the hook 14 has come off from the side pin 13 due to the vibration of the chain after the tensioner body is inserted.
If the timing chain does not come off, a predetermined tension will not be applied to the timing chain, and the chain may become disengaged from the bracket wheel that suspends the chain, resulting in extremely poor reliability. Further, the means (3) above is implemented by inserting the bolt 1 after inserting the tensioner body 1 into the engine case E.
6 has to be unscrewed, which not only has the disadvantage of requiring an extra space for pulling out the bolt at least equivalent to the length of the actual bolt, but also has the disadvantage that the force that restrains the urging force of the plunger 4 from protruding is Since it acts from the side, it is extremely weak, and coil springs used in tensioners generally have high elasticity, so it is difficult to reliably prevent the plunger 4 from flying out, and there is a lack of reliability. With the method 4), it is impossible to insert hands or tools into the engine case after assembly, so it is impossible to remove the stopper 17 after the tensioner body is inserted into the engine case.
上述の如く、夫々提案は信頼性および挿着作業の困難性
等の点において多くの問題点を含んでいる。As mentioned above, each of the proposals has many problems in terms of reliability and difficulty in insertion work.
本発明は従来の欠点を除去し上記提案の問題点を解決し
、運搬シよび挿着が簡便で組付操作が容易且つ確実な飛
出し付勢されたプランジャの組付装置であって、以下そ
の実施例をエンジンケース忙挿着されるタイミングチェ
ーンテンショナー忙つｈて第１〜４図記載のものと同一
の構成は同一の符号を用いて説明すると、第５図（ａ）
、 （ｂ） 、 （ｃ）および（ｄ）は本発明の第１
実施例であって、ボルト１２には図（ａ） ｆｆｃ示す
ようにバネ圧縮用ネジ３に螺入するネジ部分１１のほか
に＃ネジ部分１１の逆ネジ部分２０、すなわちネジ部分
１１が右ネジの場合は逆ネジ部分２０は左ネジ、ネジ部
分１１が左ネジの場合は逆ネジ部分２０Ｆｉ右ネジが刻
設され、またプランジャ４の有底孔８の開口端部内周に
は図（ｂ）に示すよう忙前記逆ネジ部分２０が螺入する
プランジャ飛出し防止ネジ２１が刻設されている。した
がって、バネ圧縮用ネジ３とプランジャ飛出し防止ネジ
２１とは相互に逆ネジである。The present invention eliminates the conventional drawbacks and solves the problems of the above-mentioned proposals, and provides an assembly device for a protruding biased plunger that is easy to transport and insert, and is easy and reliable to assemble. The embodiment will be explained using the same reference numerals as those shown in FIGS. 1 to 4, in which the timing chain tensioner is installed and installed in the engine case.
, (b), (c) and (d) are the first
In this embodiment, the bolt 12 has a threaded portion 11 screwed into the spring compression screw 3 as shown in Figure (a) ffc, as well as a reverse threaded portion 20 of the #threaded portion 11, that is, the threaded portion 11 has a right-handed thread. In this case, the reverse threaded part 20 is a left-hand thread, and when the threaded part 11 is a left-hand thread, a reverse thread part 20Fi is carved with a right-hand thread, and the inner periphery of the open end of the bottomed hole 8 of the plunger 4 is shown in Figure (b). As shown in the figure, a plunger protrusion prevention screw 21 into which the reverse threaded portion 20 is screwed is provided. Therefore, the spring compression screw 3 and the plunger protrusion prevention screw 21 have opposite threads.
そこで先づ図（Ｃ）の如くエンジンケースＥにテンショ
ナ一本体１を挿着する前にプランジャ４の飛出しを押え
乍らテンショナ一本体１のバネ圧縮用ネジ３にボルトの
ネジ部分１１を螺合し、ボルトの逆ネジ部分２０がプラ
ンジャ４に刻設したプランジャ飛出し防止ネジ２１に：
押接した時点においてボルト１２を逆回動させると、ボ
ルト１２はテンショナ一本体ＩＫ対して螺脱方向忙移動
するが、一方逆ネジ部分２０は回動不能のプランジャの
プランジャ飛出し防止ネジ２１に螺入してプランジャ４
とボルト１２とはコイルバネ９を圧縮封入した状態にお
いて締結一体化される。したがってプランジャ４とボル
ト１２との締結後はプランジャ４の飛出しを外力により
押えなくて本プランジャ４がプランジャ室２より飛出す
おそれはないから、この状態においてはテンショナ一本
体は図（ｄ）Ｋ示す如く一塊の物品として自由に運搬及
び他の機器に挿着することができる。Therefore, before inserting the tensioner main body 1 into the engine case E as shown in Figure (C), first screw the threaded portion 11 of the bolt into the spring compression screw 3 of the tensioner main body 1 while holding down the plunger 4 from protruding. Then, the reverse threaded part 20 of the bolt connects to the plunger protrusion prevention screw 21 carved into the plunger 4:
When the bolt 12 is rotated in the opposite direction at the time of pressing, the bolt 12 moves in the unscrewing direction with respect to the tensioner main body IK, but on the other hand, the reverse threaded portion 20 engages with the plunger protrusion prevention screw 21 of the non-rotatable plunger. Screw in plunger 4
and the bolt 12 are fastened and integrated with the coil spring 9 compressed and enclosed. Therefore, after the plunger 4 and the bolt 12 are fastened, the plunger 4 is not prevented from protruding by external force, and there is no risk that the plunger 4 will protrude from the plunger chamber 2. In this state, the tensioner body is As shown, it can be freely transported as a unit and inserted into other equipment.
そζで、プランジャ４とボルト１２とが締結一体化され
たテンショナ一本体１をエンジンケース罵に外部より挿
着したのち、テンショナ一本体のバネ圧縮用ネジ３にボ
ルトのネジ部分１１が螺入する方向にボルト１２を回動
させると、ボルトの逆ネジ部分２０はプランジャ４のプ
ランジャ飛出し防止ネジ２１より螺脱する方向に回動せ
しめられてプランジャ４とボルト１２との締結は解除せ
しめられるから、プランジャ４はコイルノくネ９によっ
てプランジャ室２より飛出す方向に移動し、一方ボルト
１２はテンショナ一本体１に螺着締結されてコイルノ（
ネ９を一層押圧する方向に移動する。Then, after inserting the tensioner body 1, in which the plunger 4 and the bolt 12 are fastened and integrated, into the engine case from the outside, the threaded portion 11 of the bolt is screwed into the spring compression screw 3 of the tensioner body. When the bolt 12 is rotated in the direction shown in FIG. , the plunger 4 moves in the direction of ejecting from the plunger chamber 2 by the coil nozzle 9, while the bolt 12 is screwed into the tensioner main body 1 and the coil nozzle (
move in the direction of pressing the button 9 further.
したがって、テンショナ一本体１はエンジンケースｗ
ＩｔＣ挿着する時にはブランシャトテンショナ一本体と
が一体化されて挿着しやすく、挿着後にボルトを回動さ
せることによってプランジャはコイルバネの付勢力によ
って飛出すと同時に、コイルバネはボルトによって圧縮
されてテンショナーシューを確実にタイミングチェーン
に押接して該チェーンに所定の張力を付与することがで
きるものである。Therefore, the tensioner body 1 is the engine case w
When inserting the ItC, the Blanchat tensioner body is integrated with the main body, making it easy to insert, and by rotating the bolt after insertion, the plunger pops out due to the biasing force of the coil spring, and at the same time, the coil spring is compressed by the bolt. The tensioner shoe can be reliably pressed against the timing chain to apply a predetermined tension to the chain.
また第６図は本発明の第２実施例であって、第５図（ａ
）における逆ネジ部分（２０）をボルト１２の中心部軸
方向に突設し九コイルノ（ネ９の案内杆１２′を長くし
てその先端部外周に逆ネジ部分２０’として刻設し、該
逆ネジ部分２０’ Ｋ螺合するプランジャ飛出し防止ネ
ジ２１′を７ランジヤ４に穿設した有底孔８の底部に更
に穿設した螺孔８′に瑯成した本のであって、第１実施
例の場合と同様にしてプランジャ４の飛出しを外力によ
って押え乍らボルト１２をテンショナ一本体１に螺入し
、ポル）［突設した案内杆１２′の先端忙刻設した逆ネ
ジ部分２０′がプランジャの有底孔の螺孔８′のプラン
ジャ飛出し防止ネジ２１′に押接した時点で、ボルトを
逆回動してグランジャ飛出し防止ネジ２１′とボルトの
案内杆に創設した逆ネジ部分２０’とを螺合して、プラ
ンジャ４とボルト１２とをコイルバネ９がグランジャの
有底孔８内に圧縮された状態で締結一体化し、しかるの
ちエンジンケースＥ内に挿着して第１実施例の場合と同
様にボルトを回動してプランジャ４のボルトとの螺合締
結を釈放解除してプランジャ４を飛出し作動させるもの
である。なお、ボルトに刻設した逆ネジ部分はプランジ
ャ４を螺合係止すれば足りる屯のであるからネジ部分の
長さは短かくて屯よい。Further, FIG. 6 shows a second embodiment of the present invention, and FIG.
) is provided to protrude in the axial direction of the center of the bolt 12, and the guide rod 12' of the bolt 12 is lengthened and a reverse threaded portion 20' is carved on the outer periphery of its tip. A reverse threaded portion 20'K is screwed into a screw hole 8' further drilled at the bottom of a bottomed hole 8 drilled in the 7 plunger 4, and the plunger protrusion prevention screw 21' is screwed into the screw hole 8'. In the same manner as in the embodiment, screw the bolt 12 into the tensioner main body 1 while holding down the protrusion of the plunger 4 by an external force, and screw the bolt 12 into the tensioner main body 1. When the plunger 20' comes into contact with the plunger protrusion prevention screw 21' in the screw hole 8' of the bottomed hole of the plunger, the bolt is rotated in the opposite direction to connect the plunger protrusion prevention screw 21' and the guide rod of the bolt. The reverse threaded portion 20' is screwed together, the plunger 4 and the bolt 12 are fastened and integrated with the coil spring 9 being compressed in the bottomed hole 8 of the granger, and then inserted into the engine case E. As in the case of the first embodiment, the bolt is rotated to release and release the threaded engagement of the plunger 4 with the bolt, thereby causing the plunger 4 to fly out and operate. It should be noted that the length of the reverse threaded portion carved into the bolt is sufficient if the plunger 4 is screwed and locked, so the length of the threaded portion may be short and thick.
以上の如く、本発明は同一のボルトを正逆回動すること
によってコイルバネを圧縮しプランジャを飛出させるか
又はコイルバネの圧縮状態を維持させながらプランジャ
の飛出しを阻止するかの選択がきわめて容易に操作でき
るので、プランジャの飛出しを阻止した状態では運搬お
よび取扱操作が簡便となり、この状態でたとえば組付後
に触れることができないような挿着孔内又は壁の反対側
等にプランジャが位置する場合において本ボルトを逆回
動させることによプ容易にプラコノジャの飛出し阻止状
態を解除することができるから、エンジン組立の最後工
程でエンジンケースの外からテンショナーのプランジャ
をエンジンケース内に位置するよう忙挿着する組付作業
が容易に行うことができ、ｉ本ボルトを逆回動させて螺
着しているプランジャを、ボルトを正回動させコイルバ
ネを圧縮しながらプランジャを螺脱させるので、目視不
能の場所において本プランジャの螺脱は確実に行われ、
更に全体が小型になって組付はスペースも節減される等
のすぐれた効果を有するものである。As described above, in the present invention, it is extremely easy to select whether to compress the coil spring and cause the plunger to pop out by rotating the same bolt in the forward and reverse directions, or to prevent the plunger from popping out while maintaining the compressed state of the coil spring. Since the plunger can be operated easily when the plunger is prevented from flying out, it is easy to carry and handle the plunger. In some cases, by rotating this bolt in the opposite direction, the state of preventing the plastic plunger from popping out can be easily released, so in the final process of engine assembly, position the tensioner plunger from outside the engine case into the engine case. It is easy to assemble the plunger by rotating the bolt in the opposite direction and unscrewing the plunger while compressing the coil spring by rotating the bolt in the forward direction. , the plunger is reliably unscrewed in a place that cannot be seen by the naked eye,
Furthermore, the overall size is reduced, and the assembly space is also saved, which has excellent effects.
第１〜４図は従来のエンジン用タイミングチェーンのテ
ンショナーを示し、第１図は分解組立正面図、第２図は
要部正面図、第３図および第４図は正面断面図であって
、第５〜６図は本発明の第１．第２実施例であるエンジ
ン用タイミングチェーンのテンショナーを示し第５図（
ａ）はボルト正面図、（ｂ）はプランジャ要部正面断面
図、（Ｃ）はプランジャ飛出し可能時の正面断面図、（
ｄ）はプランジャ飛出し阻止時の正面断面図、第６図は
プランジャ飛出し可能時の正面断面図である。
１・・・テンショナ一本体 ２−・・プランジャ室３−
・・バネ圧縮用ネジ ４・・・プランジャ ９・・・付
勢バネ １１・・・ネジ部分 １２・・・ポル） ２
０．２０’・・・逆ネジ部分 ２１．２１’・・・プラ
ンジャ飛出し防止ネジ代理人 弁理士祐 川 尉 −外
１名
第３図
区
第４＃Ａ
第５図
（ａ） （ｂ）
（ｄ）1 to 4 show a conventional engine timing chain tensioner, FIG. 1 is an exploded front view, FIG. 2 is a front view of main parts, and FIGS. 3 and 4 are front sectional views, 5 and 6 show the first embodiment of the present invention. Figure 5 shows a tensioner for an engine timing chain according to the second embodiment (
(a) is a front view of the bolt, (b) is a front cross-sectional view of the main part of the plunger, (C) is a front cross-sectional view when the plunger can be ejected, (
d) is a front sectional view when the plunger is prevented from popping out, and FIG. 6 is a front sectional view when the plunger is allowed to pop out. 1...Tensioner body 2-...Plunger chamber 3-
...Spring compression screw 4...Plunger 9...Biasing spring 11...Screw part 12...Pol) 2
0.20'... Reverse threaded part 21.21'... Screw to prevent plunger from popping out Agent Patent attorney Yukawa Takeshi - 1 other person Figure 3 Section 4 #A Figure 5 (a) (b) (d)
Claims (1)
用ネジを刻設し、他端開口よ）飛出し自在で且り回動不
能忙前記プランジャ室に装入されたプランジャに前記バ
ネ圧縮用ネジと逆ネジのプランジャ飛出し防止ネジを刻
設し、前記バネ圧縮用ネジ忙螺入するネジ部分とプラン
ジャ飛出し防止ネジに螺入する逆ネジ部分とを有するボ
ルトを前記プランジャ室並びにプランジャに螺着し、該
ボルトとプランジャとの間にプランジャ飛出し付勢バネ
を圧縮状態でプランジャ室内に封入した飛出し付勢され
九プランジャの組付装置。A spring compression screw is carved into the inner periphery of one end of the plunger chamber, which has both ends open, and the plunger inserted into the plunger chamber is provided with a spring compression screw that can protrude freely (from the other end) and cannot rotate. A bolt with a screw and a reverse threaded plunger protrusion prevention screw is carved into the plunger chamber and the plunger, and the bolt has a threaded portion that is screwed into the spring compression screw and a reverse threaded portion that is screwed into the plunger protrusion prevention screw. This is an assembling device for a nine-protrusion biased plunger which is screwed together and a plunger protrusion bias spring is enclosed in a compressed state in a plunger chamber between the bolt and the plunger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10496281A JPS60527B2 (en) | 1981-07-07 | 1981-07-07 | Assembling device for protruding biased plunger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10496281A JPS60527B2 (en) | 1981-07-07 | 1981-07-07 | Assembling device for protruding biased plunger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS588211A true JPS588211A (en) | 1983-01-18 |
| JPS60527B2 JPS60527B2 (en) | 1985-01-08 |
Family
ID=14394719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10496281A Expired JPS60527B2 (en) | 1981-07-07 | 1981-07-07 | Assembling device for protruding biased plunger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60527B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004044749A (en) * | 2002-07-15 | 2004-02-12 | Tsubakimoto Chain Co | Plunger stopper made of resin for ratchet type tensioner |
| JP2004044713A (en) * | 2002-07-12 | 2004-02-12 | Tsubakimoto Chain Co | Plunger restraining tool for rachet-type tensioner |
| JP2006520717A (en) * | 2003-03-17 | 2006-09-14 | ルノー・エス・アー・エス | Shock absorbing support device for automobile |
| US7431675B2 (en) * | 2005-05-24 | 2008-10-07 | Ford Global Technologies, Llc | Chain tensioner |
| DE10102804B4 (en) * | 2000-01-21 | 2010-12-09 | Tsubakimoto Chain Co., Nakanoshima | Ratchet tensioning device |
| JP2016031104A (en) * | 2014-07-29 | 2016-03-07 | 富士重工業株式会社 | Tensioner |
| CN112902801A (en) * | 2021-02-23 | 2021-06-04 | 杭州东华链条集团有限公司 | Assembling and detecting production line and assembling and detecting method for automobile engine chain tensioner |
-
1981
- 1981-07-07 JP JP10496281A patent/JPS60527B2/en not_active Expired
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10102804B4 (en) * | 2000-01-21 | 2010-12-09 | Tsubakimoto Chain Co., Nakanoshima | Ratchet tensioning device |
| JP2004044713A (en) * | 2002-07-12 | 2004-02-12 | Tsubakimoto Chain Co | Plunger restraining tool for rachet-type tensioner |
| JP2004044749A (en) * | 2002-07-15 | 2004-02-12 | Tsubakimoto Chain Co | Plunger stopper made of resin for ratchet type tensioner |
| JP2006520717A (en) * | 2003-03-17 | 2006-09-14 | ルノー・エス・アー・エス | Shock absorbing support device for automobile |
| US7431675B2 (en) * | 2005-05-24 | 2008-10-07 | Ford Global Technologies, Llc | Chain tensioner |
| GB2426561B (en) * | 2005-05-24 | 2010-07-28 | Ford Global Tech Llc | Chain tensioner |
| DE102006015986B4 (en) * | 2005-05-24 | 2012-04-12 | Ford Global Technologies, Llc | Chain tensioner |
| JP2016031104A (en) * | 2014-07-29 | 2016-03-07 | 富士重工業株式会社 | Tensioner |
| CN112902801A (en) * | 2021-02-23 | 2021-06-04 | 杭州东华链条集团有限公司 | Assembling and detecting production line and assembling and detecting method for automobile engine chain tensioner |
| CN112902801B (en) * | 2021-02-23 | 2022-09-20 | 杭州东华链条集团有限公司 | Assembling and detecting production line and assembling and detecting method for automobile engine chain tensioner |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60527B2 (en) | 1985-01-08 |
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