JPS6136524A - Brake mechanism - Google Patents

Brake mechanism

Info

Publication number
JPS6136524A
JPS6136524A JP15842184A JP15842184A JPS6136524A JP S6136524 A JPS6136524 A JP S6136524A JP 15842184 A JP15842184 A JP 15842184A JP 15842184 A JP15842184 A JP 15842184A JP S6136524 A JPS6136524 A JP S6136524A
Authority
JP
Japan
Prior art keywords
shaft
torsion spring
annular flange
operating member
brake mechanism
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
JP15842184A
Other languages
Japanese (ja)
Inventor
Akira Owada
大和田 晃
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.)
Shiroki Corp
Original Assignee
Shiroki Kinzoku 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 Shiroki Kinzoku Kogyo KK filed Critical Shiroki Kinzoku Kogyo KK
Priority to JP15842184A priority Critical patent/JPS6136524A/en
Publication of JPS6136524A publication Critical patent/JPS6136524A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D49/00Brakes with a braking member co-operating with the periphery of a drum, wheel-rim, or the like
    • F16D49/02Brakes with a braking member co-operating with the periphery of a drum, wheel-rim, or the like shaped as a helical band or coil with more than one turn, with or without intensification of the braking force by the tension of the band or contracting member
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D59/00Self-acting brakes, e.g. coming into operation at a predetermined speed

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

PURPOSE:To obtain the captioned apparatus with compact from at a low cost by inserting a torsion spring into a fixed shaft and generating a brake power by the diameter-contracting action of the spring. CONSTITUTION:Into the shaft part 9a of a shaft 9 fixed onto a lower arm 8, a driving member 10 equipped with a gear part 10a, torsion spring 12, and an operating member 15 having a serration, etc. are freely inserted. The hook parts 12a and 12b formed at the both edge parts of the torsion spring 12 are engaged with a driving member 10 and an operating member 15. When the diameter of the torsion spring 12 contracts because of the revolution of the operating member 15, the torsion spring 12 is attached under pressure onto the shaft part 9a of the shaft 9, and a brake power is generated.

Description

【発明の詳細な説明】 (産業上の利用分野〕 本発明は、ブレーキ機構に関し、更に詳しくはリクライ
ニング装置やウィンドレギュレータ等に使用されるブレ
ーキ機構に関する。
DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a brake mechanism, and more particularly to a brake mechanism used in reclining devices, window regulators, and the like.

〔従来の技術〕[Conventional technology]

この種のブレーキ機構として、第3図及び第4図に示す
ものが従来から採用されている。これは、ストッパケー
スl内に、切欠き2を刻没しハンドル軸3と一体のコア
4を回動可能に収納すると共に、前記ストッパケース1
内に、該ストッパケースl内壁に圧接すると共に、前記
コア4を包囲するトーションスプリング5を装着し、且
つ該スプリング5の両端には、コア4の回転時に切欠き
2の各側端部2a、2bと係合し得るフック部5a、5
bを折曲げ形成して、コア4が回転した際にいずれかの
フック部5a又は5bを巻き込み、スプリング5の外径
を引き縮めるように構成し、又前記切欠@2内にはビニ
オン6と一体のツメg?+7を挿入し、−ニオン6に回
転力が作用した際にツメ部7を介しスプリング5の外径
を押し広げてブレーキ力が発生するように構成している
As this type of brake mechanism, those shown in FIGS. 3 and 4 have been employed in the past. In this case, a notch 2 is carved in the stopper case 1 to rotatably accommodate a core 4 integral with the handle shaft 3, and the stopper case 1
A torsion spring 5 is installed inside the stopper case l to press against the inner wall of the stopper case l and surround the core 4, and each side end 2a of the notch 2 is provided at both ends of the spring 5 when the core 4 rotates. Hook parts 5a, 5 that can be engaged with 2b
b is bent and formed so that when the core 4 rotates, either the hook portion 5a or 5b is wound up and the outer diameter of the spring 5 is contracted. The one claw g? When the +7 is inserted and rotational force is applied to the -nion 6, the outer diameter of the spring 5 is expanded via the claw 7 to generate a braking force.

以上のような構成において、今、ハンドル軸3の操作に
より、コア4を第し図における反時針方向に回転させる
と、切欠き2の側端部2aがスプリング5のフック部5
aを押圧してスプリング5の外径を縮める。従って、ツ
メ部7を介してとニオン6は回転するようになる。尚、
コア4の時計方向への回転の場合も同様である。一方、
ピニオン6側からツメ部7に対して、時針方向又は反時
計方向のいずれの方向の回転力が加わっても、ツメ部7
がスプリング5を押し広げて、スプリング5とストッパ
ケースl内壁との間に摩擦力が発生し、その摩擦力によ
り大きなブレーキ力が発生し、回転は阻止される。
In the above configuration, when the core 4 is now rotated in the counterclockwise direction in FIG.
Press a to reduce the outer diameter of the spring 5. Therefore, the nion 6 comes to rotate via the claw portion 7. still,
The same applies to the case of clockwise rotation of the core 4. on the other hand,
Even if a rotational force is applied to the pawl 7 from the pinion 6 side in either the hour hand direction or the counterclockwise direction, the pawl 7
spreads out the spring 5, and a frictional force is generated between the spring 5 and the inner wall of the stopper case l, and the frictional force generates a large braking force to prevent rotation.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

ところで、このような従来のブレーキ機構においては、
トーションスプリング5の外側面と圧接するスト7バケ
ース1が必要不可欠な部品であり、このストッパケース
1の存在がブレーキ機構全体の大型化、コスト高を招く
という問題があった。
By the way, in such a conventional brake mechanism,
The stopper case 1, which is in pressure contact with the outer surface of the torsion spring 5, is an essential component, and the presence of this stopper case 1 has caused problems in that the entire brake mechanism becomes larger and costs increase.

本発明は、上記の問題に鑑みてなされたもので、その目
的は、ストッパケースを廃止してコンパクト化及びコス
トダウンを図ったブレーキ機構を提供することにある。
The present invention has been made in view of the above-mentioned problems, and an object thereof is to provide a brake mechanism that eliminates the stopper case and achieves compactness and cost reduction.

〔問題点を解決するための手段〕[Means for solving problems]

上記問題点を解決する本発明は、取付板に固着されるシ
ャフトと、該シャフトに枢着されギヤ部及び環状フラン
ジ部及びV;環状フランジ部の一部を削除して開口部と
して形成した切欠部を有する駆動部材と、前記環状フラ
ンジ部内に収容され前記シャフトが嵌挿するコイル部と
該コイル部両端に曲成したフック部を有し、このフック
部が前記切欠部内に位置するよう形成されたトーション
スプリングと、前記駆動部材の環状フランジ部を覆うよ
うに前記シャフトに枢着されると共に、前記トーション
スプリングのフック部の間に当接可能に突設した舌部を
有する操作部材とから成り、前記トーションスプリング
と前記シャフトの摩擦力によりブレーキ力を発生させる
ようにしたことを特徴とするものである。
The present invention to solve the above problems includes a shaft fixed to a mounting plate, a gear part and an annular flange part pivotally connected to the shaft, and a notch formed as an opening by removing a part of the annular flange part. a driving member having a drive member; a coil portion housed in the annular flange portion into which the shaft is inserted; and hook portions bent at both ends of the coil portion, the hook portions being formed so as to be located within the notch portion. the torsion spring; and an operating member pivotally connected to the shaft so as to cover the annular flange portion of the drive member and having a tongue protruding so as to be able to abut between the hook portions of the torsion spring. , the braking force is generated by the frictional force between the torsion spring and the shaft.

〔実施例〕〔Example〕

以下、第1図及び第2図を用いて本発明によるブレーキ
機構をリクライニング装置に通用した場合の実施例を説
明する。8は、シートクッション側に取付けられるロア
アームである取付板で、8゛  aは該ロアアーム8の
適所に穿設された貫通孔である。9は、シャフトで該シ
ャフト9の軸部9aは前記貫通孔8aに挿通され、基部
9bは前記ロアアーム8に溶接等により固着されるe9
cは、軸部9aの基部9bとは反対側の端部付近に形成
された周溝である。10は、駆動部材で該駆動部材10
にはギヤ部10aをはさんで互いに反対方向へ突出する
環状フランジ部10b及び突出部10Cが形成されてい
る。11は環状フランジ部10bの一部を削除して開口
部として形成された切欠き部で、10dは前記シャフト
9の軸部9aの挿通される貫通孔である。こうした駆動
部材10は、シャフト9に対し回動自在に枢着される。
An embodiment in which the brake mechanism according to the present invention is applied to a reclining device will be described below with reference to FIGS. 1 and 2. 8 is a mounting plate which is a lower arm attached to the seat cushion side, and 8'a is a through hole drilled at a suitable position in the lower arm 8. Reference numeral 9 denotes a shaft, and the shaft portion 9a of the shaft 9 is inserted into the through hole 8a, and the base portion 9b is fixed to the lower arm 8 by welding or the like e9.
c is a circumferential groove formed near the end of the shaft portion 9a on the opposite side from the base portion 9b. 10 is a driving member; the driving member 10;
An annular flange portion 10b and a protruding portion 10C are formed which protrude in opposite directions with the gear portion 10a in between. 11 is a notch formed as an opening by removing a part of the annular flange portion 10b, and 10d is a through hole through which the shaft portion 9a of the shaft 9 is inserted. The drive member 10 is pivotally connected to the shaft 9 so as to be freely rotatable.

12はトーションスプリングで、該スプリング12の両
端には、前記環状フランジ部10bの切欠き部11に面
する各側端部13.14と係合し得るフック部12a、
12bを折曲げ形成している。このトーションスプリン
グ12のコイル部の内径は自然状態で前記シャフト9の
軸部9aの直径よりやや小さく設定されていて、このス
プリング12は例で前記軸部9aに嵌挿され、該スプリ
ング12の内周面は軸部9aの外周面に圧接される。#
、トーションスプリング12のコイル部の外径は拡径状
態で前記環状フランジ部10bの内径よりやや小さく設
定されていて、該スプリング12は環状フランジ部10
b内に収納される(第2図)、15は図示しない操作ハ
ンドルの取付けられる操作部材であり、該操作部材15
の前記駆動部材10側端部には軸方向へ突出する舌部1
5aが一体的に形成されている。尚、該舌部15aとは
反対側の端部には、回り止めのためにセレーシジン等の
加工を施されたハンドル取付部15bが形成されている
。15Cは、前記シャフト9の軸部9aの挿通される貫
通孔であり、組立状態で操作部材15はシャフト9に回
動自在に枢着される。前記舌部tSaは組立状態で前記
トーションスプリング12の一対のフックft1512
m、12b間の間隙内に収納され、さらに前記駆動部材
10の切欠き部11内に位置するようになっている。更
に詳しく説明すれば、トーションスプリング12のフッ
ク部12a、12bは環状フランジ部10bの各側端部
13.14と操作部材15の舌部15aの両側端部との
間に位置するようになっている。こうして組立てられた
ブレーキ機構は、最終的にシャフト9の前記ff1i9
cにEリング16を嵌合させることにより抜は止めが図
られる。尚、図示は省略するが前記駆動部材10のギヤ
部10aにはチェーンが巻°掛けられ、該チェーンの他
端はロアアーム8に対してアンパアームを伸動させる際
の1転中心であるヒンジシャフトと一体的に回動するス
プロケットに@fJ)けられている。
Reference numeral 12 denotes a torsion spring, and hook portions 12a are provided at both ends of the spring 12, which can engage with each side end portion 13.14 facing the notch portion 11 of the annular flange portion 10b;
12b is formed by bending. The inner diameter of the coil portion of this torsion spring 12 is set to be slightly smaller than the diameter of the shaft portion 9a of the shaft 9 in its natural state. The peripheral surface is pressed against the outer peripheral surface of the shaft portion 9a. #
, the outer diameter of the coil portion of the torsion spring 12 is set to be slightly smaller than the inner diameter of the annular flange portion 10b in the expanded state;
15 is an operating member to which an operating handle (not shown) is attached;
A tongue portion 1 protruding in the axial direction is provided at the end portion on the drive member 10 side.
5a is integrally formed. A handle attachment portion 15b is formed at the end opposite to the tongue portion 15a, and is processed with a ceresigine or the like to prevent rotation. 15C is a through hole through which the shaft portion 9a of the shaft 9 is inserted, and the operating member 15 is pivotally attached to the shaft 9 in the assembled state. The tongue portion tSa is connected to the pair of hooks ft1512 of the torsion spring 12 in the assembled state.
m and 12b, and is further located within the notch 11 of the drive member 10. More specifically, the hook portions 12a, 12b of the torsion spring 12 are positioned between each side end 13.14 of the annular flange portion 10b and both side ends of the tongue portion 15a of the operating member 15. There is. The brake mechanism assembled in this way is finally assembled into the ff1i9 of the shaft 9.
By fitting the E-ring 16 to c, removal can be prevented. Although not shown, a chain is wound around the gear portion 10a of the drive member 10, and the other end of the chain is connected to a hinge shaft, which is the center of rotation when the amplifier arm is extended relative to the lower arm 8. @fJ) It is driven by a sprocket that rotates as a unit.

以上のような構成において、今、図示しない操作ハンド
ルの操作により操作部材15を第1図の矢印B方向に回
転させると、前記舌部15aの上側端部がトーションス
プリング12のフック12aを押圧して該スプリング1
2の直径を拡大する。
In the above-described configuration, when the operating member 15 is now rotated in the direction of arrow B in FIG. The spring 1
Enlarge the diameter of 2.

従って、シャフト9の軸部9aに対するトーションスプ
リング12の圧接状筋が解かれ、舌部15aを介して駆
動部材lOは回転するようになる。
Therefore, the pressure-like muscle of the torsion spring 12 against the shaft portion 9a of the shaft 9 is released, and the drive member 1O comes to rotate via the tongue portion 15a.

尚、操作部材15の矢印入方向への回転の場合も同様で
ある。一方、駆動部材10に矢印B方向の回転力が加わ
った場合、環状フランジ部10bの下側端部14がトー
ションスプリング12のフック12bを押圧して該スプ
リング12の[1を縮小する。従って、該スプリング1
2の内周面は軸部9aの外周面に圧接し、該両者の摩擦
力により大きなブレーキ力を発生させるため、駆動部材
lOの回転力は阻止される。
The same applies to the case where the operating member 15 is rotated in the direction indicated by the arrow. On the other hand, when a rotational force in the direction of arrow B is applied to the drive member 10, the lower end 14 of the annular flange portion 10b presses the hook 12b of the torsion spring 12 to contract [1] of the torsion spring 12. Therefore, the spring 1
The inner circumferential surface of the drive member 2 is in pressure contact with the outer circumferential surface of the shaft portion 9a, and the frictional force between the two generates a large braking force, so that the rotational force of the drive member 1O is blocked.

尚、前記実施例では本発明をリクライニング装置に適用
した場合について説明したが、これに限定することなく
、ウィンドレギュレータ、シートの上下v4整装置、ヘ
ッドレスト等にも適用可能である。
In the above embodiment, the present invention is applied to a reclining device, but the present invention is not limited thereto, and can be applied to a window regulator, a seat vertical adjustment device, a headrest, etc.

〔発明の効果〕〔Effect of the invention〕

以上説明したように、本発明によれば、従来のようなス
トンパケースを廃止することにより、コンパクト化及び
コストダウンを図ったブレーキ機構を提供できるので極
めて実用性の高いものである。
As explained above, according to the present invention, a brake mechanism that is compact and cost-reduced can be provided by eliminating the conventional stomper case, and is therefore extremely practical.

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

第1図は本発明によるブレーキ機構の一実施例を示す分
解斜視図、第2図は同様に組立状態を示す断面図、第3
図は従来のブレーキ機構を示す分解斜視図、第4図は従
来のブレーキ機構の説明図である。 8・・・取付板     9・−シャフト10・・〜駆
動部材   10a−・ギヤ部10b・・・環状フラン
ジ部 11・・・切欠き部
FIG. 1 is an exploded perspective view showing one embodiment of the brake mechanism according to the present invention, FIG. 2 is a sectional view similarly showing an assembled state, and FIG.
The figure is an exploded perspective view showing a conventional brake mechanism, and FIG. 4 is an explanatory diagram of the conventional brake mechanism. 8 Mounting plate 9 Shaft 10 Drive member 10a Gear part 10b Annular flange 11 Notch

Claims (1)

【特許請求の範囲】[Claims] 取付板に固着されるシャフトと、該シャフトに枢着され
ギヤ部及び環状フランジ部及び該環状フランジ部の一部
を削除して開口部として形成した切欠部を有する駆動部
材と、前記環状フランジ部内に収容され前記シャフトが
嵌挿するコイル部と該コイル部両端に曲成したフック部
を有し、このフック部が前記切欠部内に位置するよう形
成されたトーションスプリングと、前記駆動部材の環状
フランジ部を覆うように前記シャフトに枢着されると共
に、前記トーションスプリングのフック部の間に当接可
能に突設した舌部を有する操作部材とから成り、前記ト
ーションスプリングと前記シャフトの摩擦力によりブレ
ーキ力を発生させるようにしたことを特徴とするブレー
キ機構。
a shaft fixed to a mounting plate, a drive member pivotally attached to the shaft and having a gear portion, an annular flange portion, and a cutout portion formed as an opening by removing a part of the annular flange portion; a torsion spring having a coil part housed in the housing and into which the shaft is inserted; a torsion spring having a hook part curved at both ends of the coil part, the hook part being located in the notch; and an annular flange of the driving member. an operating member that is pivotally connected to the shaft so as to cover the torsion spring and has a tongue protruding so as to be able to come into contact between the hook parts of the torsion spring, and the operating member A brake mechanism characterized by generating braking force.
JP15842184A 1984-07-28 1984-07-28 Brake mechanism Pending JPS6136524A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15842184A JPS6136524A (en) 1984-07-28 1984-07-28 Brake mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15842184A JPS6136524A (en) 1984-07-28 1984-07-28 Brake mechanism

Publications (1)

Publication Number Publication Date
JPS6136524A true JPS6136524A (en) 1986-02-21

Family

ID=15671385

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15842184A Pending JPS6136524A (en) 1984-07-28 1984-07-28 Brake mechanism

Country Status (1)

Country Link
JP (1) JPS6136524A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102200175A (en) * 2011-04-25 2011-09-28 捷和电机(深圳)有限公司 Bidirectional spring brake and electric equipment

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4910665U (en) * 1972-04-28 1974-01-29

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4910665U (en) * 1972-04-28 1974-01-29

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102200175A (en) * 2011-04-25 2011-09-28 捷和电机(深圳)有限公司 Bidirectional spring brake and electric equipment

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