JPH0143560Y2 - - Google Patents
Info
- Publication number
- JPH0143560Y2 JPH0143560Y2 JP1983047099U JP4709983U JPH0143560Y2 JP H0143560 Y2 JPH0143560 Y2 JP H0143560Y2 JP 1983047099 U JP1983047099 U JP 1983047099U JP 4709983 U JP4709983 U JP 4709983U JP H0143560 Y2 JPH0143560 Y2 JP H0143560Y2
- Authority
- JP
- Japan
- Prior art keywords
- tension spring
- support piece
- plate
- hooking
- shaped support
- 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
Landscapes
- Springs (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Description
【考案の詳細な説明】
本考案はテンシヨンスプリングを引掛け取付け
るテンシヨンスプリングの取付装置に関するもの
である。[Detailed Description of the Invention] The present invention relates to a tension spring mounting device for hooking and mounting a tension spring.
第１図を参照して、カムシヤフトプーリ１、イ
ンジエクシヨンポンププーリ２、アイドルプーリ
３、オイルポンププーリ４、クランクプーリ５を
回して掛装したタイミングベルト６の緊張機構７
は、シリンダブロツク８に植設したピン９に端部
を枢着する支持片１０にテンシヨンプーリ１１を
取付けてあり、また他端部にスプリング止着端１
２を形成してあり、シリンダブロツク８に植設し
たスプリング止着杆１３に上端１４ａを係止させ
たテンシヨンスプリング１４の下端１４ｂをスプ
リング止着端１２に係止させてあり、支持片１０
の長孔１５より突出するボルト１６を緩め、ピン
９を支点として支持片１０を動かし、テンシヨン
スプリング１４の弾力を介してテンシヨンプーリ
１１をタイミングベルト１６に圧接させ、タイミ
ングベルト６を緊張させたのち、ボルト１６を締
めて支持片１０を緊定させた。 Referring to FIG. 1, a tensioning mechanism 7 for a timing belt 6, which is hung by rotating a camshaft pulley 1, an injection pump pulley 2, an idler pulley 3, an oil pump pulley 4, and a crank pulley 5, is shown.
A tension pulley 11 is attached to a support piece 10 whose end is pivotally attached to a pin 9 implanted in a cylinder block 8, and a spring fixed end 1 is attached to the other end.
2, the upper end 14a of the tension spring 14 is locked to the spring locking rod 13 implanted in the cylinder block 8, and the lower end 14b of the tension spring 14 is locked to the spring locking end 12.
Loosen the bolt 16 protruding from the long hole 15, move the support piece 10 using the pin 9 as a fulcrum, and press the tension pulley 11 against the timing belt 16 through the elasticity of the tension spring 14, thereby tensioning the timing belt 6. Afterwards, the bolt 16 was tightened to tighten the support piece 10.
この場合、テンシヨンスプリング１４の下端１
４ｂと、支持片１０のスプリング止着端１２との
従来の引掛け構造は、第２図に示すように、短円
柱体の上下中間部に断面半円状の周溝１７ａを刻
設した止着杆１７を支持片１０に植設し、テンシ
ヨンスプリング１４の下端１４ｂの引掛け彎曲部
１４ｃ内側を周溝１７ａに引掛けて係止させた。
このような、支持片１０に止着杆１７を溶接また
はかしめ等して植設することは量産性に欠ける難
点があつた。 In this case, the lower end 1 of the tension spring 14
4b and the spring fastening end 12 of the support piece 10, as shown in FIG. The mounting rod 17 was planted in the support piece 10, and the inner side of the hook curved portion 14c of the lower end 14b of the tension spring 14 was hooked and locked in the circumferential groove 17a.
Providing the fixing rod 17 to the support piece 10 by welding or caulking as described above has the disadvantage that it is not suitable for mass production.
また、第３図および第４図に示す、別の従来の
引掛け構造は支持片１０の端部を折曲させ、一側
に切欠１８ａを有する止着端１８を形成し、テン
シヨンスプリング１４の下端１４ｂの引掛け彎曲
部１４ｃを切欠１８ａに引掛け係止させた。この
ため、切欠１８ａに引掛けた引掛け彎曲部１４ｃ
の内側が止着端１８の前面１８ｂ、後面１８ｃと
切欠１８ａとの角部分１８ｄに接するとともに止
着端１８との接触範囲が狭いので、エンジン振動
等によるテンシヨンスプリング１４の共振、接触
部分における応力集中等によつてテンシヨンスプ
リング１４を折損させ、エンジン事故を招く惧れ
があつた。 Another conventional hooking structure shown in FIGS. 3 and 4 includes bending the end of the support piece 10 to form a fastening end 18 having a notch 18a on one side, and a tension spring 14. The hooking curved portion 14c of the lower end 14b of is hooked and locked to the notch 18a. For this reason, the hook curved portion 14c hooked on the notch 18a
The inner side of the retaining end 18 is in contact with the corner portion 18d between the front surface 18b and the rear surface 18c and the notch 18a, and the contact area with the retaining end 18 is narrow, so resonance of the tension spring 14 due to engine vibration, etc. There was a risk that the tension spring 14 would break due to stress concentration, leading to an engine accident.
この場合、止着端１８の板厚を大とし、角落し
を充分にして丸味をもたせることは量産上、好ま
しくない。 In this case, it is not desirable for mass production to increase the plate thickness of the fastening end 18 and give it a rounded shape by sufficiently cutting corners.
本考案は前記の点に鑑み、量産性大であつて、
接触範囲を可及的に大とし応力集中を緩和して共
振現象を制振させるようにしたものであつて、テ
ンシヨンスプリングの引掛け彎曲部内側に沿つて
添接するよう彎曲する接触面を有する係合部を形
成した止着端を板状支持片に設け、前記係合部に
テンシヨンスプリング端を引掛け止着してなるテ
ンシヨンスプリングの取付装置である。 In view of the above points, the present invention is highly suitable for mass production, and
The contact area is made as large as possible to alleviate stress concentration and dampen resonance phenomena, and has a contact surface that is curved so as to be attached along the inside of the hook curved part of the tension spring. This is a tension spring attachment device in which a fastening end with an engaging portion is provided on a plate-shaped support piece, and the tension spring end is hooked and fastened to the engaging portion.
次に、本考案の実施例を第１図、第５図、第６
図および第７図を参照して説明する。 Next, examples of the present invention are shown in FIGS. 1, 5, and 6.
This will be explained with reference to FIG. 7 and FIG.
第５図、第６図および第７図に示すように、板
状支持片１０の端部を上方に折曲げ、テンシヨン
スプリング１４の下端１４ｂの引掛け彎曲部１４
ｃ内側を係合させる係合部１９ａと、離脱防止片
部１９ｂとを有する止着端１９を形成する。 As shown in FIG. 5, FIG. 6, and FIG.
A fastening end 19 is formed which has an engaging part 19a that engages the inner side and a detachment prevention piece part 19b.
この場合、前記係合部１９ａはテンシヨンスプ
リング１４の引掛け彎曲部１４ｃ内側に沿つて添
接するよう彎曲する接触面１９ｃを有し、引掛け
彎曲部１４ｃの曲率半径をＲとし、接触面１９ｃ
の曲率半径をr1としたとき、Ｒ＞r1とし、望まし
くはＲ≒r1とし、また接触面１９ｃに続く端縁１
９ｄを、さらに内側に彎曲させ、曲率半径r2と
し、接触面１９ｃに続く基部１９ｅの曲率半径を
r3としたときr1＞r2，r1＞r3、とするとよい。 In this case, the engaging portion 19a has a contact surface 19c that is curved so as to be attached along the inside of the hook curved portion 14c of the tension spring 14, and the radius of curvature of the hook curved portion 14c is R, and the contact surface 19c
When the radius of curvature of is r 1 , R>r 1 , preferably R≒r 1 , and the edge 1 following the contact surface 19c
9d is further curved inward, the radius of curvature is r 2 , and the radius of curvature of the base 19e following the contact surface 19c is
When r 3 , it is preferable to set r 1 > r 2 , r 1 > r 3 .
止着端１９を有する板状支持片１０は、金属板
材を用いてプレス成形により一体成形する。 The plate-shaped support piece 10 having the fixed end 19 is integrally formed by press molding using a metal plate material.
このように形成した板状支持片１０を用い、止
着端１９の係合部１９ａの接触面１９ｃに引掛け
彎曲部１４ｃの内側を添接させ係合させてテンシ
ヨンスプリング１４の下端１４ｂを係止する。 Using the plate-shaped support piece 10 formed in this way, the lower end 14b of the tension spring 14 is attached to the contact surface 19c of the engaging portion 19a of the fastening end 19, and the inside of the hooked curved portion 14c is brought into contact and engaged. to lock.
なお、本例では、係止杆１３を第８図示のねじ
込み式とし、かつ中間に周溝１３ａを形成してあ
り、この周溝１３ａにテンシヨンスプリング１４
の上端１４ａを係止させてある。 In this example, the locking rod 13 is of the screw type shown in FIG. 8, and a circumferential groove 13a is formed in the middle.
The upper end 14a of is locked.
本考案は前記のように構成したので、テンシヨ
ンスプリング１４の引掛け彎曲部１４ｃと板状支
持片１０の止着端１９の係合部１９ｃとの間にお
ける引掛け応力は比較的広範囲の接触部分に分布
して応力集中を防止し、エンジン振動等によるテ
ンシヨンスプリング１４の共振現象を発生せしめ
ない。 Since the present invention is configured as described above, the hooking stress between the hooking curved portion 14c of the tension spring 14 and the engaging portion 19c of the fixed end 19 of the plate-shaped support piece 10 is reduced over a relatively wide range of contact. This prevents stress concentration from occurring in the tension spring 14 due to engine vibration and the like.
第９図および第１０図に示すものは、前記の止
着端１９を有する板状支持片１０に代えて、止着
端２０を有する支持片板状１０としたものであ
り、止着端２０は内側に向け弧状の係合部２０
ａ，２０ａを形成し、これら係合部２０ａ，２０
ａは外面を連続弧状としてテンシヨンスプリング
１４の引掛け彎曲部１４ｃの内側に沿うようにし
てあり、離脱防止片部２０ｂは外向き張出状とし
てあり、止着端２０を有する板状支持片１０も板
材を用いてプレス成形により成形する。 What is shown in FIGS. 9 and 10 is a plate-shaped support piece 10 having a fastening end 20 instead of the plate-like support piece 10 having the fastening end 19, and the fastening end 20 is an inwardly arcuate engaging portion 20.
a, 20a, and these engaging portions 20a, 20
a has a continuous arc-shaped outer surface and extends along the inside of the hooking curved portion 14c of the tension spring 14, and the detachment prevention piece 20b is a plate-shaped support piece having an outwardly projecting shape and having a fixed end 20. 10 is also formed by press molding using a plate material.
止着端２０とした板状支持片１０の場合におけ
る係合部２０ａ，２０ａと、テンシヨンスプリン
グ１４の引掛け彎曲部１４ｃとの作用、効果は止
着端１９を有する板状支持片１０の場合における
よりも接触面積が大となり応力集中の緩和、制振
効果を一層向上する。 In the case of the plate-shaped support piece 10 having the fixed end 20, the action and effect of the engaging parts 20a, 20a and the hooking curved part 14c of the tension spring 14 are as follows. The contact area is larger than in the case where the contact area is larger, which further improves stress concentration relaxation and vibration damping effects.
本考案はテンシヨンスプリングの引掛け彎曲部
内側に添接する係合部を止着端に有する板状支持
片を用い、テンシヨンスプリングの下端を止着端
に引掛け係止させてなるからテンシヨンスプリン
グの引掛け下端の応力集中を分散させ、接触範囲
を広くしてテンシヨンスプリングの折損を防止す
ることができるし、しかも、止着端を有する板状
支持片は板材を用いてプレス成形し得るから量産
性に秀れる等その実用的効果は大である。また、
本案はテンシヨンスプリングを用いるどのような
部所にも適用し得る。 The present invention uses a plate-shaped support piece that has an engaging part attached to the inside of the hooked curved part of the tension spring at the fixed end, and hooks and locks the lower end of the tension spring to the fixed end. It is possible to disperse stress concentration at the hooked lower end of the tension spring and widen the contact range to prevent breakage of the tension spring.Moreover, the plate-shaped support piece with the fixed end is press-formed using a plate material. It has great practical effects, such as being able to excel in mass production. Also,
The present invention can be applied to any location that uses tension springs.
第１図は本考案の実施例の正面図、第２図は従
来装置におけるテンシヨンスプリングと支持片と
の引掛け構造を示す要部斜視図、第３図は別の従
来装置におけるテンシヨンスプリングと支持片と
の引掛け構造を示す要部斜視図、第４図は第３図
に示す引掛け構造の要部拡大平面図、第５図は本
考案におけるテンシヨンスプリングと板状支持片
との引掛け構造を示す要部拡大図、第６図は第５
図における板状支持片の止着端の斜視図、第７図
は第６図に示す止着端の要部拡大説明図、第８図
はテンシヨンスプリングの上端を係止する止着杆
の側面図、第９図は本考案の別の実施例における
テンシヨンスプリング下端と板状支持片の止着端
との引掛け構造を示す平面図、第１０図は第９図
における板状支持片の止着端の斜視図である。
６……タイミングベルト、８……シリンダブロ
ツク、９……ピン、１０……板状支持片、１１…
…テンシヨンプーリ、１２……スプリング止着
端、１３……スプリング止着杆、１４……テンシ
ヨンスプリング、１４ａ……上端、１４ｂ……下
端、１４ｃ……引掛け彎曲部、１９，２０……止
着端、１９ａ，２０ａ……係合部、１９ｂ，２０
ｂ……離脱防止片部。
Fig. 1 is a front view of an embodiment of the present invention, Fig. 2 is a perspective view of a main part showing a hooking structure between a tension spring and a support piece in a conventional device, and Fig. 3 is a tension spring in another conventional device. FIG. 4 is an enlarged plan view of the main part of the hook structure shown in FIG. 3, and FIG. Figure 6 is an enlarged view of the main part showing the hooking structure of
FIG. 7 is an enlarged explanatory view of the main part of the fastening end shown in FIG. 6, and FIG. 8 is a perspective view of the fastening end of the plate-shaped support piece shown in FIG. A side view, FIG. 9 is a plan view showing a hooking structure between the lower end of the tension spring and the fixed end of the plate-shaped support piece in another embodiment of the present invention, and FIG. 10 is the plate-shaped support piece in FIG. 9. It is a perspective view of the fixed end of. 6...Timing belt, 8...Cylinder block, 9...Pin, 10...Plate support piece, 11...
...Tension pulley, 12... Spring fixing end, 13... Spring fixing rod, 14... Tension spring, 14a... Upper end, 14b... Lower end, 14c... Hook curved part, 19, 20... ...Fixed end, 19a, 20a...Engagement part, 19b, 20
b... Separation prevention piece.
Claims (1)
つて添接するよう彎曲する接触面を有する係合部
を形成した止着端を板状支持片に設け、前記係合
部にテンシヨンスプリング端を引掛け止着してな
るテンシヨンスプリングの取付装置。 A plate-like support piece is provided with a fastening end formed with an engaging part having a curved contact surface so as to be attached along the inside of the hooking curved part of the tension spring, and the tension spring end is hooked to the engaging part. A mounting device for a fixed tension spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4709983U JPS59153735U (en) | 1983-03-31 | 1983-03-31 | Tension spring mounting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4709983U JPS59153735U (en) | 1983-03-31 | 1983-03-31 | Tension spring mounting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59153735U JPS59153735U (en) | 1984-10-15 |
| JPH0143560Y2 true JPH0143560Y2 (en) | 1989-12-18 |
Family
ID=30177650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4709983U Granted JPS59153735U (en) | 1983-03-31 | 1983-03-31 | Tension spring mounting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59153735U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2469009A1 (en) * | 2002-02-27 | 2003-09-04 | Ishikawajima-Harima Heavy Industries, Co., Ltd. | Damping device and method for setting characteristic frequency of damping body in said damping device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5351548U (en) * | 1976-10-06 | 1978-05-02 | ||
| JPS5940338Y2 (en) * | 1978-02-20 | 1984-11-15 | 三井金属鉱業株式会社 | A device that automatically combines anode plates and cathode plates alternately. |
| JPS5936751Y2 (en) * | 1982-02-13 | 1984-10-11 | 利和 奥野 | Spring hook |
| JPS59146645U (en) * | 1983-03-22 | 1984-10-01 | 日本精工株式会社 | tensioner |
-
1983
- 1983-03-31 JP JP4709983U patent/JPS59153735U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59153735U (en) | 1984-10-15 |
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