JPH02142936A - Flat spiral spring - Google Patents

Flat spiral spring

Info

Publication number
JPH02142936A
JPH02142936A JP29438988A JP29438988A JPH02142936A JP H02142936 A JPH02142936 A JP H02142936A JP 29438988 A JP29438988 A JP 29438988A JP 29438988 A JP29438988 A JP 29438988A JP H02142936 A JPH02142936 A JP H02142936A
Authority
JP
Japan
Prior art keywords
locking piece
spring
locking
spiral spring
flat 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.)
Pending
Application number
JP29438988A
Other languages
Japanese (ja)
Inventor
Kosuke Miura
三浦　晃右
Eiji Miyazaki
英司 宮崎
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.)
MORI ZENMAI KOGYO KK
Original Assignee
MORI ZENMAI KOGYO KK
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 MORI ZENMAI KOGYO KK filed Critical MORI ZENMAI KOGYO KK
Priority to JP29438988A priority Critical patent/JPH02142936A/en
Publication of JPH02142936A publication Critical patent/JPH02142936A/en
Pending legal-status Critical Current

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)

Abstract

PURPOSE:To prevent a locking piece from being projected out of the outer diameter of a spring as well as to prevent an operator from getting hurt when it is fitted in a case by projecting the locking piece to the side of an inner diameter in a spiral type flat spiral spring. CONSTITUTION:The tip end section 3 of a spiral type flat spiral spring 1 is formed with a hooking section 4 which is locked on a flat spiral spring case, a locking piece 5 is provided on the side 1a of an inner diameter near by the hooking section, and a locking hole 6 is bored at a space to the after end from the locking piece 5. After flat spiral spring 1 has been winded up, when the locking piece 5 is inserted into the locking hole 6 while holding by an operator is released thereafter, the spring wants to be expanded because of the elastic force of the flat spiral spring while leaving the locking piece 5 locked in the locking hole 6, and the locking piece 5 is thereby crushed by the force so as to be lowered in height so that a spiral form roughly in a circular shape is formed. By this constitution, the flat spiral spring can thereby be obtained, which prevent the locking piece from being projected from the outermost diameter of the spring and also prevents operator's hands from getting hurt by the tip end of the locking piece when it is fitted in.

Description

【発明の詳細な説明】 〈産業上の利用分野〉 本発明は長尺状の薄板をうずまき状に湾曲して形成する
ゼンマイバネの改良に関スル。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to improvement of a spiral spring formed by curving a long thin plate into a spiral shape.

〈従来の技術〉 ゼンマイバネは、所定の大きさに巻き込んだ状態で器具
等のゼンマイバネケースに装着される。しかし、ゼンマ
イバネの巻き弾力作用により拡張しようとするため、Ｖ
ｉが困難である。<Prior Art> A spiral spring is wound into a predetermined size and attached to a spiral spring case of a device or the like. However, since it tries to expand due to the winding elastic action of the mainspring spring, V
i is difficult.

そこで、従来から、この課題を解決するための手段とし
て種々の提案がなされており、例えば第６図（Ａ）　（
Ｂ）に示すようなものが広く知られている。Therefore, various proposals have been made in the past as means to solve this problem, such as the one shown in Figure 6 (A) (
The one shown in B) is widely known.

このものは、第６図（Ａ）　に示すように最外径部に配
位された先端部（ｄ）側の側面に、係止孔（ａ）を設け
ると共に、この係止孔（ａ）より一定間隔（ｐＪ後端部
（ｅ）側寄りに離れた部分に抜き打ら加工により、外径
側に突出する係止片（ｂ）を設けたものである。そして
、所定の大きさに巻き込んだ後、第６図（Ｂ）に示すよ
うに、係止片（ｂ）を係止孔（ａ）に嵌挿して、係止す
るようにして拡張を防止したものである。As shown in FIG. 6(A), a locking hole (a) is provided on the side surface of the tip (d) located at the outermost diameter portion, and this locking hole (a) A locking piece (b) protruding toward the outer diameter side is provided by punching at a more constant interval (pJ rear end (e) side) and then cut to a predetermined size. After being rolled in, the locking piece (b) is inserted into the locking hole (a) to lock and prevent expansion, as shown in FIG. 6(B).

〈発明が解決しようとする課題〉 ところが、このものは係止片（ｂ）を、うずまき状の外
径側に突出するように設けているため、係止状態におい
ては、係止片［有］）の先端（ｂｌ）が最外径の外側面
（Ｃ）より突出する。<Problems to be Solved by the Invention> However, in this device, the locking piece (b) is provided so as to protrude toward the outer diameter side of the spiral shape, so in the locked state, the locking piece [with] ) protrudes from the outer surface (C) of the outermost diameter.

さらに、第６図（Ｃ）に示すように、係止片（ｂ）に巻
き弾力作用による拡張しようとする力（Ｑ＋がかかると
、係止片（ｂ）の基端片（ｂ２）で変形を起こし、外径
方向にふくれ、歪な形になり、係止片（ハ）の突出を助
長する。この結果、ゼンマイバネケースに係止片（ｂ）
が当たらないように、係止片（ｂ）の逃がし部を形成し
なければならず、ゼンマイバネケースの加工成形が複雑
となってしまう。Furthermore, as shown in FIG. 6(C), when a force (Q+) is applied to the locking piece (b) to expand due to the winding elastic action, the proximal end piece (b2) of the locking piece (b) deforms. This causes the locking piece (b) to bulge in the outer radial direction, creating a distorted shape and promoting the protrusion of the locking piece (c).As a result, the locking piece (b)
It is necessary to form a relief part for the locking piece (b) so that the locking piece (b) does not hit, which makes processing and forming of the mainspring spring case complicated.

また、係止片＠）の先Ｘ（ｂｌ）が尖っているため、最
外径より突出していると、ゼンマイバネケースに装着す
る際等、その先１（ｂｌ）で手を切るという課題を有し
たものである。In addition, since the tip X (bl) of the locking piece @) is sharp, if it protrudes beyond the outermost diameter, there is a problem of cutting your hand with the tip 1 (bl) when attaching it to the mainspring spring case. This is what I did.

〈課題を解決するための手段〉 そこで本発明は、うずまき状に形成される上記ゼンマイ
バネにおいて、先端部の内側面に、うずまき状の内径側
に突出する係止片を備え、さらにこの係止片から所定間
隔、後端部寄りに離れた箇所に係止片を係止する係止孔
を備えたゼンマイバネを提供することにより上記課題を
解決する。<Means for Solving the Problems> Accordingly, the present invention provides the above-mentioned spiral spring formed in a spiral shape, and further includes a locking piece protruding toward the inner diameter side of the spiral shape on the inner surface of the tip end. The above problem is solved by providing a spiral spring having a locking hole for locking a locking piece at a location a predetermined distance away from the rear end.

く作　用〉 本発明においては、係止片をうずまき状の内径側に突出
させることにより係止状態においては、係止片が最外径
の外側面より突出することはなくなる。Effect> In the present invention, by causing the locking piece to protrude toward the inner diameter side of the spiral shape, in the locked state, the locking piece will not protrude beyond the outermost surface of the outer diameter.

また、係止状態では係１Ｆ片が、常時、巻き弾力作用に
より外径方向に付勢される。これにより係止片が内径方
向に起こされるのを防止してその基端片部での変形を防
止することができるとともに、係止片が弾性変形して、
その突出高さが低くなり、隙間が狭く抑えられて、外径
方向にふくれるようなことはなくなる。Further, in the locked state, the locking piece 1F is always urged in the outer radial direction by the winding elastic action. This prevents the locking piece from being raised in the radial direction and prevents deformation at its proximal end, and also allows the locking piece to be elastically deformed.
The protrusion height is reduced, the gap is kept narrow, and swelling in the outer diameter direction is eliminated.

従って、従来のように、ゼンマイバネケースに係止片が
当たらないように、その逃がし部を設ける必要がなくな
り、ゼンマイバネケースを単純な形状に形成すれば良く
、ゼンマイハネケースの成形加工を容易なものとするこ
とができるようになる。Therefore, unlike in the past, there is no need to provide a relief part to prevent the locking piece from hitting the spring spring case, and the spring spring case can be formed into a simple shape, making it easier to mold the spring spring case. You will be able to do this.

〜方、ゼンマイバネケースに装着する際等には係止片の
先端で手を切るようなこともなくなる。On the other hand, there is no need to cut your hand at the tip of the locking piece when attaching it to the mainspring spring case.

〈実施例〉 以下、図面に基づいて、本発明の一実施例を具体的に説
明する。<Example> Hereinafter, an example of the present invention will be specifically described based on the drawings.

第１図は本発明のゼンマイバネの係止状態を示す斜視図
であり、第２図はゼンマイハネの先端部を示す拡大斜視
図である。FIG. 1 is a perspective view showing the locking state of the spiral spring of the present invention, and FIG. 2 is an enlarged perspective view showing the tip of the spiral spring.

本発明のゼンマイバネ（１）は、第１図に示すように、
弾力性を有する長尺状の鋼板からなり、一端側が最内径
部に配位されて後端部（２）を成し、この後端部（２）
から順次うずまき状に形成され、他端側が最外径に配位
されて先端部（３）を成している。そして先端部（３）
には第２図に示すようにその先端にゼンマイバネケース
の一部に係止される引掛部（４）がうずまき方向と反対
方向へ、外側に折り曲げられて形成されている。そして
、この引掛部（４）の近傍の内側面（１ａ）には係止片
（５）が設けられている。The spiral spring (1) of the present invention, as shown in FIG.
It is made of a long steel plate having elasticity, and one end side is arranged at the innermost diameter part to form a rear end part (2), and this rear end part (2)
It is sequentially formed in a spiral shape, and the other end is located at the outermost diameter to form a tip (3). and the tip (3)
As shown in FIG. 2, a hook portion (4) that is hooked to a part of the mainspring spring case is formed at the tip thereof by being bent outward in a direction opposite to the spiral direction. A locking piece (5) is provided on the inner surface (1a) near the hook (4).

この係止片（５）は、プレス加工によりその基端片（５
ａ）以外の周囲が鋼板から切り離されて成る。This locking piece (5) is formed by pressing the base end piece (5).
The surrounding area other than a) is separated from the steel plate.

そして、この切り離された部分が基端片（５ａ）から内
側面側、即ちうずまき状の内径側に突出するように、且
つ、その先端（５ｂ）が後端方向に向くように、折り曲
げられて、係止片（５）を成している。Then, this separated portion is bent so that it protrudes from the proximal end piece (5a) toward the inner surface side, that is, toward the spiral inner diameter side, and so that its tip (5b) faces toward the rear end. , forming a locking piece (5).

また、係止片（５）から後端部（２）側寄りに、所定間
隔（１）隔てた側面に細長状の係止孔（６）をプレス加
工により穿設している。この係止孔（６）が、上記係止
片（５）を係止するためのものである。Furthermore, an elongated locking hole (6) is formed by press working on the side surface of the locking piece (5) toward the rear end (2) at a predetermined distance (1). This locking hole (6) is for locking the locking piece (5).

係止孔（６）に係止片（５）を係止するには、ゼンマイ
バネ（＋）を所定の大きさに巻き込んだ後、係止片（５
）を係止孔（６）に嵌挿する。この状態で手を諦すと、
ゼンマイバネ（１）の巻き弾力により、拡コｌＱしよう
とする力が働き、係止片（５）と係止孔（６）とは互い
に反対方向に動く、この動きにより、係止片（５）と係
止孔（６）とは自然に係止する。このとき、第３図に示
すように、係止片（５）には巻き弾力が作用し、係止片
（５）の先端（５ｂ）を内径方向（図示Ｘ方向）に起こ
そうとする力が働くが、これと同時に、外径方向（図示
Ｙ方向）にも拡張しようとする巻き弾力作用が働く。こ
れにより、係止片（５）の基端片（５ａ）部での変形は
抑えられ、円形状を維持することができ変形による係止
片（５）の外径方向への突出を防ぐことができる。To lock the locking piece (5) in the locking hole (6), wind up the spiral spring (+) to a predetermined size, then insert the locking piece (5) into the locking hole (6).
) into the locking hole (6). If you give up in this state,
Due to the winding elasticity of the mainspring spring (1), a force to expand the force acts, causing the locking piece (5) and the locking hole (6) to move in opposite directions. Due to this movement, the locking piece (5) and the locking hole (6) are naturally locked. At this time, as shown in Fig. 3, a winding elasticity acts on the locking piece (5), and a force that tries to raise the tip (5b) of the locking piece (5) in the inner radial direction (X direction in the figure) However, at the same time, a winding elastic action that tries to expand in the outer radial direction (Y direction in the figure) also works. As a result, deformation at the proximal end piece (5a) of the locking piece (5) is suppressed, and the circular shape can be maintained, thereby preventing the locking piece (5) from protruding in the outer radial direction due to deformation. Can be done.

さらに、この拡張しようとする外径方向への巻き弾力作
用により、係止片（５）が弾性変形してその突出高さ（
ｈｌ）が低い高さ（ｈ２）となり、隙間（１）が狭く抑
えられて、外径方向にふくれるようなことはなくなる。Furthermore, due to the elastic action of the winding in the outer radial direction to expand, the locking piece (5) is elastically deformed and its protruding height (
hl) becomes a low height (h2), the gap (1) is kept narrow, and it does not bulge in the outer radial direction.

以上の様に構成することにより、係止状態においては、
係止片（５）が最外径より突出することがなくなる。By configuring as above, in the locked state,
The locking piece (5) will no longer protrude beyond the outermost diameter.

従って、従来のようにゼンマイバネケースに係止片の逃
がし部を設ける必要がなくなり、ゼンマイバネケースを
単純な形状に形成すれば良く、成形加工を容易なものと
することができるようになる。Therefore, there is no need to provide a relief part for the locking piece in the spring spring case as in the conventional case, and the spring spring case can be formed into a simple shape, making the molding process easier.

また、ゼンマイバネケースに装着する際等には、係止片
（５）の先端（５ｂ）で手を切るようなこともなくなる
。Moreover, when attaching it to the mainspring spring case, there is no need to cut your hand at the tip (5b) of the locking piece (5).

尚、係止片（５）の形状は、実施例で示したものに限ら
ず、第４図に示すように、係止片（５）の先端（５ｂ）
が後端部（２）方向を向くように、基端片（５ａ）から
折り曲げて形成するようにしても良い。Note that the shape of the locking piece (5) is not limited to that shown in the embodiment, and as shown in FIG.
It may be formed by bending the proximal end piece (5a) so that it faces toward the rear end (2).

さらに、第５図に示すように、係止片（５）の中央部で
折り返して形成するようにしても良く、適宜変更できる
ものである。Furthermore, as shown in FIG. 5, the locking piece (5) may be formed by folding back at the center, and this can be changed as appropriate.

〈発明の効果〉 以上実施例で述べたように、本発明のゼンマイバネは、
係止状態において、係止片が最外径の外側面より突出す
ることはなく、また、ゼンマイバネの巻き弾力作用によ
り、係止片の基端片部での変形を抑えるとともに、係止
片の突出高さを低くして、円形状に維持し、外径方向に
ふくれるのを防止することができる。<Effects of the Invention> As described in the examples above, the spiral spring of the present invention has the following effects:
In the locked state, the locking piece does not protrude from the outer surface of the outermost diameter, and due to the winding elasticity of the spiral spring, deformation at the base end of the locking piece is suppressed and the locking piece is By lowering the protruding height, it is possible to maintain the circular shape and prevent it from swelling in the outer radial direction.

これにより、従来のようにゼンマイバネケースに係止片
の逃がし部を設ける必要がない。Thereby, there is no need to provide a release part for the locking piece in the mainspring spring case as in the conventional case.

従って、ゼンマイバネケースを単純な形状に形成すれば
良く、成形加工を容易なものとすることができるように
なり、低コストで製作できるものとなる。Therefore, it is only necessary to form the spring spring case into a simple shape, and the molding process can be made easy, so that it can be manufactured at low cost.

一方、ゼンマイバネケースに装着する際等には、係止片
の先端で手を切るようなこともなくなるものとなる。On the other hand, when attaching it to a mainspring spring case, there is no need to cut your hand at the tip of the locking piece.

以上、本発明は安全に操作できる有用且つ実用的なゼン
マイバネを提供し得たものである。As described above, the present invention has been able to provide a useful and practical spiral spring that can be operated safely.

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

第１図は本発明のゼンマイバネの一実施例を示す斜視図
であり、第２図は先端部の係止片と係止孔を示す要部拡
大斜視図、第３図は係止状態における係止片の状態を示
す説明図、第４図は他の実施例を示す要部拡大斜視図、
第５図は他のもう一つの実施例を示す要部拡大斜視図、
第６図（Ａ）　は従来例を示す斜視図、第６図（Ｂ）は
従来例を示す要部拡大斜視図、第６図（Ｃ）は従来例の
係止状態における係止片の状態を示す説明図である。 （１）・・・ゼンマイハネ、（１ａ）・・・内側面、（
Ｉｂ）・・・外側面、（２）・・・後端部、（５）・・
・係止片、（５ａ）・・・基端部、（６）・・・係止孔FIG. 1 is a perspective view showing an embodiment of the spring spring of the present invention, FIG. 2 is an enlarged perspective view of the main part showing the locking piece and the locking hole at the tip, and FIG. 3 is the locking spring in the locked state. An explanatory view showing the state of the stopper piece, FIG. 4 is an enlarged perspective view of the main part showing another embodiment,
FIG. 5 is an enlarged perspective view of main parts showing another embodiment;
Fig. 6(A) is a perspective view showing the conventional example, Fig. 6(B) is an enlarged perspective view of the main part showing the conventional example, and Fig. 6(C) is the state of the locking piece in the locked state of the conventional example. FIG. (1)...Clockwork spring, (1a)...Inner surface, (
Ib)...outer surface, (2)...rear end, (5)...
・Latching piece, (5a)... Base end part, (6)... Locking hole

Claims (1)

【特許請求の範囲】 長尺状の薄板からなり、一端側が最内径部に配位されて
後端部を成し、この後端部から順次うずまき状に湾曲さ
れて形成され、他端側が最外径部に配位されて、先端部
を成すゼンマイバネにおいて、 上記先端部が、その内側面にうずまき状の内径側に突出
する係止片を有し、さらにこの係止片から所定間隔、後
端部よりに離れた箇所に係止孔を備え、ゼンマイバネを
所定の大きさに巻き込んだ後、この係止孔に係止片を嵌
挿して係止可能としたものであることを特徴とするゼン
マイバネ。[Claims] Consisting of a long thin plate, one end is arranged at the innermost diameter part to form the rear end, and the plate is sequentially curved in a spiral shape from the rear end, and the other end is the rear end. In a spiral spring disposed on the outer diameter part and forming a tip part, the tip part has a spiral locking piece protruding toward the inner diameter side on its inner surface, and further has a locking piece located at a predetermined distance behind the locking piece. A locking hole is provided at a location farther away from the end, and after the spiral spring is wound to a predetermined size, the locking piece can be inserted into the locking hole to lock the spring. Spring spring.
JP29438988A 1988-11-21 1988-11-21 Flat spiral spring Pending JPH02142936A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP29438988A JPH02142936A (en) 1988-11-21 1988-11-21 Flat spiral spring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP29438988A JPH02142936A (en) 1988-11-21 1988-11-21 Flat spiral spring

Publications (1)

Publication Number Publication Date
JPH02142936A true JPH02142936A (en) 1990-06-01

Family

ID=17807099

Family Applications (1)

Application Number Title Priority Date Filing Date
JP29438988A Pending JPH02142936A (en) 1988-11-21 1988-11-21 Flat spiral spring

Country Status (1)

Country Link
JP (1) JPH02142936A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5425557U (en) * 1977-07-23 1979-02-20
JPH0718454U (en) * 1993-08-23 1995-03-31 日新電機株式会社 Cooling system
JPH0718313U (en) * 1993-08-31 1995-03-31 道雄 野口 Wall member for indirect lighting

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5425557U (en) * 1977-07-23 1979-02-20
JPH0718454U (en) * 1993-08-23 1995-03-31 日新電機株式会社 Cooling system
JPH0718313U (en) * 1993-08-31 1995-03-31 道雄 野口 Wall member for indirect lighting

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