JP2724466B2 - Method of forming eccentric spiral spring with unequal pitch - Google Patents
Method of forming eccentric spiral spring with unequal pitchInfo
- Publication number
- JP2724466B2 JP2724466B2 JP63134749A JP13474988A JP2724466B2 JP 2724466 B2 JP2724466 B2 JP 2724466B2 JP 63134749 A JP63134749 A JP 63134749A JP 13474988 A JP13474988 A JP 13474988A JP 2724466 B2 JP2724466 B2 JP 2724466B2
- Authority
- JP
- Japan
- Prior art keywords
- spiral spring
- spacer
- spring
- pitch
- eccentric spiral
- 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 - Fee Related
Links
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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
- F16F1/04—Wound springs
- F16F1/10—Spiral springs with turns lying substantially in plane surfaces
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Springs (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、自動車のリクライニングシートやウインド
レギュレター等に使用するうず巻ばねの成形方法に関す
る。Description: TECHNICAL FIELD The present invention relates to a method for forming a spiral spring used for a reclining seat of an automobile, a wind regulator, and the like.
（従来技術） 従来のうず巻ばねは第６図に示す如く、巻き締め前は
ばね板間のピッチが各部等ピッチになっていた。(Prior Art) As shown in FIG. 6, in a conventional spiral spring, the pitch between spring plates was equal at each part before being tightened.
（発明が解決しようとする問題点） ところで上記従来技術に於ては巻き締め時は第７図の
如く、偏心しばね板が片方に片寄り互に接触して異音を
発生して不快感があり、又うず巻きばねをセッチィング
する時塑性変形させていないので第５図ｂのようにヘタ
リが大きく長期間安定したトルク特性が得られず、又第
５図Ｂのようにトルク特性先端が上方に立ち上り、直線
状の特性が得られないという問題点があった。(Problems to be Solved by the Invention) By the way, in the above-mentioned prior art, as shown in FIG. 7, when the coil is tightened, the spring plates are eccentric and the spring plates come in contact with each other and generate an unpleasant noise. In addition, since the spring is not plastically deformed when the spiral spring is set, the torque characteristics are large and the stable torque characteristics cannot be obtained for a long time as shown in FIG. 5b, and the tip of the torque characteristics is upward as shown in FIG. 5B. And there is a problem that a linear characteristic cannot be obtained.
（問題点を解決するための手段） 本発明は上記問題点を解決することを目的とし、ピッ
チを広めにコイリングし、セッチィング時一側部ばね板
間にスペーサーを挿入し、該スペーサーの厚みを外方部
が厚く内方部に行くに従って次第に薄くなるようにし、
高トルクをかけてばね板を塑性変形させた後、スペーサ
ーを除くようにした不等ピッチ偏心うず巻ばねの成形方
法を特徴とするものである。(Means for Solving the Problems) An object of the present invention is to solve the above problems by coiling with a wider pitch, inserting a spacer between one side spring plate at the time of setting, and reducing the thickness of the spacer. The outer part is thicker and gradually thinner as you go to the inner part,
The present invention is characterized by a method of forming an unequal-pitch eccentric spiral spring in which a spacer is removed after plastically deforming a spring plate by applying a high torque.
以下、第１図乃至第４図に示した実施例について詳細
に説明する。第１図の如くばね板１の一端をピン２に固
定し、うず巻状に広めにコイリングして軸芯３に固定
し、セッティング時第２図の如く一側部ばね板１間にス
ペーサー４を挿入し、該スペーサー４の厚みを外方部が
厚く内方部に行くに従って次第に薄くなるようにし、高
トルクをかけてばね板１を塑性変形させた後、第３図の
如くスペーサー４を除き、第３図の不等ピッチ偏心うず
巻ばね５を形成する。該不等ピッチ偏心うず巻ばね５
は、ばね板１間のピッチＰが中心より外側に行くに従っ
て次第に広くなる不等ピッチになっており、且つうず巻
きが偏心して非対称形になっている。Hereinafter, the embodiment shown in FIGS. 1 to 4 will be described in detail. As shown in FIG. 1, one end of a spring plate 1 is fixed to a pin 2, and is coiled in a spiral manner to be fixed to a shaft core 3. At the time of setting, a spacer 4 is provided between one side spring plate 1 as shown in FIG. The thickness of the spacer 4 is made thicker in the outer part and gradually thinner toward the inner part. The spring plate 1 is plastically deformed by applying a high torque, and then the spacer 4 is removed as shown in FIG. Except for the unequal pitch eccentric spiral spring 5 shown in FIG. The unequal pitch eccentric spiral spring 5
Has an unequal pitch in which the pitch P between the spring plates 1 becomes gradually wider as going outward from the center, and the vortex is eccentric to be asymmetric.
（効 果） 本発明によると、ピッチを広めにコイリングし、セッ
チィング時一側部ばね板間にスペーサーを挿入し、該ス
ペーサーの厚みを外方部が厚く内方部に行くに従って次
第に薄くなるようにし、高トルクをかけてばね板を塑性
変形させた後、スペーサーを除くようにした不等ピッチ
偏心うず巻ばねの成形方法を要旨としているので、巻き
締め中でも第４図の如く左側のピッチ（隙間）が最初大
きいのでばね板１のばね板間の接触、摩擦が少なくな
り、巻き締め最終時の立ち上り部が第５図Ａの如く低く
なってトルク特性が略直線状に改善された。そのため自
動車のリクライニングシートやウインドレギュレターに
使用した時、異音発生が少くなり不快感がなくなり乗心
地がよくなり、又うず巻きばねをセッチィング時高トル
クで塑性変形してあるので、第５図ａの如くヘタリが少
く長期間安定したトルク特性が得られる。(Effects) According to the present invention, coiling is performed with a wider pitch, and a spacer is inserted between the one side spring plates at the time of setting, so that the thickness of the spacer is gradually reduced as the outer portion becomes thicker and goes toward the inner portion. The essence of the method is to form a non-uniform pitch eccentric spiral spring in which the spring plate is plastically deformed by applying a high torque and then the spacers are removed. Since the gap is initially large, the contact and friction between the spring plates 1 are reduced, and the rising portion at the end of the tightening is reduced as shown in FIG. 5A, so that the torque characteristics are improved in a substantially linear manner. Therefore, when used for a reclining seat or a wind regulator of an automobile, the generation of abnormal noise is reduced, the discomfort is eliminated, and the riding comfort is improved, and the spiral spring is plastically deformed with a high torque at the time of setting. As described above, a stable torque characteristic can be obtained with little settling for a long time.
第１図乃至第３図は本発明成形方法を順次示す図、第４
図は第３図の本発明不等ピッチ偏心うず巻ばね使用時の
正面図、第５図は本発明と従来例のトルク特性図、第６
図は従来例巻き締め前正面図、第７図は第６図の巻き締
め後正面図である。 １……ばね板、２……ピン、３……軸芯 ４……スペーサー、５……不等ピッチ偏心うず巻ばね、
Ｐ……ピッチFIGS. 1 to 3 are diagrams sequentially showing the molding method of the present invention.
FIG. 3 is a front view of the eccentric spiral spring of the present invention shown in FIG. 3, and FIG. 5 is a torque characteristic diagram of the present invention and the conventional example.
FIG. 7 is a front view of the conventional example before winding, and FIG. 7 is a front view after the winding of FIG. 1 ... spring plate, 2 ... pin, 3 ... shaft core 4 ... spacer, 5 ... eccentric eccentric spiral spring,
P ... Pitch
Claims (1)
グ時一側部ばね板間にスペーサーを挿入し、該スペーサ
ーの厚みを外方部が厚く内方部に行くに従って次第に薄
くなるようにし、高トルクをかけてばね板を塑性変形さ
せた後、スペーサーを除くようにした不等ピッチ偏心う
ず巻ばねの成形方法。1. A coil having a wide pitch and a spacer inserted between one side spring plate at the time of setting so that the thickness of the spacer is gradually reduced as the outer portion becomes thicker toward the inner portion. A method of forming an eccentric eccentric spiral spring in which the spacer is removed after plastically deforming the spring plate by applying pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63134749A JP2724466B2 (en) | 1988-06-01 | 1988-06-01 | Method of forming eccentric spiral spring with unequal pitch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63134749A JP2724466B2 (en) | 1988-06-01 | 1988-06-01 | Method of forming eccentric spiral spring with unequal pitch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01303333A JPH01303333A (en) | 1989-12-07 |
| JP2724466B2 true JP2724466B2 (en) | 1998-03-09 |
Family
ID=15135678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63134749A Expired - Fee Related JP2724466B2 (en) | 1988-06-01 | 1988-06-01 | Method of forming eccentric spiral spring with unequal pitch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2724466B2 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04121551U (en) * | 1991-04-22 | 1992-10-30 | 株式会社松尾製作所 | Eccentric spiral spring and eccentric spiral spring with rotation transmission member |
| KR20020082029A (en) * | 2001-04-23 | 2002-10-30 | 김석성 | Method to product chair spring in car |
| EP1445670A1 (en) | 2003-02-06 | 2004-08-11 | ETA SA Manufacture Horlogère Suisse | Balance-spring resonator spiral and its method of fabrication |
| JP5002160B2 (en) * | 2006-01-26 | 2012-08-15 | 中央発條株式会社 | Spiral spring assembly and method for controlling outer and inner end loads |
| EP1818736A1 (en) | 2006-02-09 | 2007-08-15 | The Swatch Group Research and Development Ltd. | Shockproof collet |
| JP6153750B2 (en) * | 2013-03-22 | 2017-06-28 | 中央発條株式会社 | Spiral spring and manufacturing method thereof |
| JP2020002967A (en) * | 2018-06-26 | 2020-01-09 | 速水発条株式会社 | Spiral spring device |
| JP6626594B1 (en) * | 2018-07-02 | 2019-12-25 | セイコーインスツル株式会社 | Spiral spring, torque generator, watch movement and watch |
| JP7214187B2 (en) * | 2018-11-06 | 2023-01-30 | 日本テクニカ株式会社 | Structure of spiral spring for vehicle |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5165150U (en) * | 1974-11-15 | 1976-05-22 |
-
1988
- 1988-06-01 JP JP63134749A patent/JP2724466B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01303333A (en) | 1989-12-07 |
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| R250 | Receipt of annual fees |
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