JPS58211023A - Spring clutch - Google Patents

Spring clutch

Info

Publication number
JPS58211023A
JPS58211023A JP9361582A JP9361582A JPS58211023A JP S58211023 A JPS58211023 A JP S58211023A JP 9361582 A JP9361582 A JP 9361582A JP 9361582 A JP9361582 A JP 9361582A JP S58211023 A JPS58211023 A JP S58211023A
Authority
JP
Japan
Prior art keywords
spring clutch
grease
groove
lubricant
clutch
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
JP9361582A
Other languages
Japanese (ja)
Inventor
Satoru Okanishi
悟 岡西
Takuji Iriyama
入山 卓二
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP9361582A priority Critical patent/JPS58211023A/en
Publication of JPS58211023A publication Critical patent/JPS58211023A/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
    • F16D13/00Friction clutches
    • F16D13/08Friction clutches with a helical band or equivalent member, which may be built up from linked parts, with more than one turn embracing a drum or the like, with or without an additional clutch actuating the end of the band

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Operated Clutches (AREA)

Abstract

PURPOSE:To eliminate troubles such as degradation of slide surfaces, occurrence of abnormal sound, etc. due to shortage of grease or the like to improve durability by forming a deformed wire rod in the form of coil to form a lubricant reserving groove in the inner peripheral surface of the coil. CONSTITUTION:A spring clutch 16 is a coiled steel wire having approximately flattened rectangular section, i.e. so-called deformed wire, and provided in the inner periphery with a groove 17. This groove 17 is worked in the forming of said flattened rectangular wire rod. Since lubricant such as grease is applied to the groove 17, an amount of applied grease is not squeezed to provide the shortage of the lubricant when the spring clutch 16 is inserted into a drive boss 8. Also, since the lubricant is not applied to the outside or the like of the spring clutch 16, sufficient grease or the like is liable to deposit and remain in realy necessary slide portions.

Description

【発明の詳細な説明】 本発明は例えば脱水洗濯機において選択時と脱水時とで
動力の伝達を切換えるスプリングクラッチに・関するも
ので、スプリングクラッチの耐久性を向上させることを
目的とする。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a spring clutch that switches power transmission between selection and dehydration in, for example, a dehydrating washing machine, and an object of the present invention is to improve the durability of the spring clutch.

第1図は従来一般的な脱水洗濯機の要部の断面構造を示
し、モーター(図示せず)からVベルト1等にて回転伝
達された従動プーリー2の回転を、洗濯時には衣類攪拌
用パルセータ−3の回転に、脱水時にはフランジ4を介
して脱水兼洗濯槽6の回転にそれぞれ切替え伝達する為
に、従動プーリー2の上方にコイル状になした鋼線にて
なるスプリングクラッチ6を配している。
Fig. 1 shows a cross-sectional structure of the main parts of a conventional general dehydrating washing machine, in which the rotation of a driven pulley 2, which is rotationally transmitted from a motor (not shown) through a V-belt 1, etc., is transferred to a pulsator for stirring clothes during washing. A spring clutch 6 made of a coiled steel wire is arranged above the driven pulley 2 in order to switch and transmit the rotation of the washing tub 6 through the flange 4 during spin-drying. ing.

前記スプリングクラッチ6の働き兼ひに動作を説明する
と、スプリングクラッチ6は、脱水軸7の下端および前
記従動プーリー2に固着された駆動ボス8の外周に巻装
する。スプリングクラッチ6の下端には、爪9を形成し
、その外周に配したクラッチ切替ギア10に爪9を係着
している。
To explain the function and operation of the spring clutch 6, the spring clutch 6 is wound around the lower end of the dewatering shaft 7 and the outer periphery of the drive boss 8 fixed to the driven pulley 2. A pawl 9 is formed at the lower end of the spring clutch 6, and the pawl 9 is engaged with a clutch switching gear 10 disposed on the outer periphery of the pawl 9.

クラッチ切替ギア10は、そのギア羽根に保合。The clutch switching gear 10 is engaged with the gear blade.

離脱自在な爪11を先端に取付けたクラッチレバ−12
にて操作される。即ち、クラッチ切替ギア1Qに爪11
が係合した場合は、スプリングクラッチらは、駆動ボス
8を締めっけ力を解除されるので、従動プーリー2の回
転は脱水軸7に伝達されず、ビン13にて固着して連動
するパルセータ−軸14に伝達される。即ち洗濯時の運
転を行う。
Clutch lever 12 with a detachable pawl 11 attached to the tip
It is operated by. That is, the claw 11 is attached to the clutch switching gear 1Q.
When engaged, the force of the spring clutches tightening the drive boss 8 is released, so the rotation of the driven pulley 2 is not transmitted to the dewatering shaft 7, and the pulsator, which is fixed and interlocked with the bin 13, is - transmitted to the shaft 14; That is, the washing operation is performed.

一方、爪11をクラッチ切替・ギア10より離脱せしめ
た時は、スプリングクラッチ6は駆動ボス8vrC対し
締めつけ力を発生し、スプリングクラッチ6の締まり方
向の回転力を伝達するので、脱水軸子の回転、即ち、脱
水運転を行う。
On the other hand, when the pawl 11 is disengaged from the clutch switching/gear 10, the spring clutch 6 generates a tightening force against the drive boss 8vrC and transmits the rotational force in the tightening direction of the spring clutch 6, so that the dehydration shaft rotates. , that is, dehydration operation is performed.

以上がスプリングクラッチ6の働きであるが、此のスプ
リングクラッチ6は、一般に鋼線等にて製作する。また
、脱水軸7及び駆動ボス8もまた金属材料で製作する。
The above is the function of the spring clutch 6, and this spring clutch 6 is generally made of steel wire or the like. Further, the dewatering shaft 7 and the driving boss 8 are also made of metal materials.

これは耐摩耗性および強度を確保するためである。This is to ensure wear resistance and strength.

第2図は同要部を分解して示したものであり、これによ
って組立時の順序を説明する。予め前身って洗濯軸14
にビン13にて駆動ボス8を固着する。スプリングクラ
ッチ6は爪9を下方にして、駆動ボス8下端より挿入し
、更に、クラッチ切替ギア10をその外方に挿着する。
FIG. 2 shows the main parts disassembled, and the assembly sequence will be explained using this figure. The predecessor is the washing axis 14
Then, fix the drive boss 8 with a pin 13. The spring clutch 6 is inserted from the lower end of the drive boss 8 with the claw 9 facing downward, and the clutch switching gear 10 is further inserted outside thereof.

なお上記スプリングクラッチ6の爪9は、クラッチ切替
ギア10の下端係止穴10′に係着している。従動プー
リー2を駆動ボス8下端にネジ16にて固着して、組立
を完了する。
Note that the pawl 9 of the spring clutch 6 is engaged with a lower end locking hole 10' of the clutch switching gear 10. The driven pulley 2 is fixed to the lower end of the drive boss 8 with a screw 16 to complete the assembly.

さて、以上の様なりラッチ近傍の構成によれは、従来、
次の様な解決すべき課題が残されていた。
Now, depending on the configuration near the latch as described above, conventionally,
The following issues remained to be resolved.

スプリングクラッチ6内周はとくに洗濯時駆動ボス8と
高速摺動を行うので、焼付き防止、摩耗防止等から、オ
イルグリス等を塗布するのが一般的であったが、第2図
に示す様な組立を行う為、内周に塗布しておいても、駆
動ボス8への挿入時、しごかれて、その大半は、駆動ボ
ス8の下面に残留してしまい、必要とする内周摺動面に
は、僅かのクリ了ランス(隙間)に残留付着するのみで
ある。従って長期間の運転を継続した場合、グリスの枯
渇が生じ、異常音の発生や焼きつき等を生じて、摺動を
円滑に行わなく場合がある。
Since the inner periphery of the spring clutch 6 slides at high speed with the drive boss 8 especially during washing, it was common to apply oil grease or the like to prevent seizure and wear, as shown in Figure 2. Even if the coating is applied to the inner periphery for easy assembly, it will be squeezed when inserted into the drive boss 8, and most of it will remain on the lower surface of the drive boss 8, and the necessary inner periphery will not be coated. There is only a small amount of residual adhesion on the moving surface in the clearance lance (gap). Therefore, if operation is continued for a long period of time, the grease may become depleted, causing abnormal noises, seizures, etc., and smooth sliding may not be possible.

此の様な不具合を改善することを目的として、クラッチ
切替ギアの内周、即ち、スプリングクラッチの外方に、
グリス等の貯留用溝を設けたものがある。更に、他の例
では、クラッチ切替ギアとスプリングクラッチとの間に
、含油フェルト等の補助部材を挿設した例もある。
In order to improve this kind of problem, a
Some have grooves for storing grease, etc. Furthermore, in other examples, an auxiliary member such as oil-impregnated felt is inserted between the clutch switching gear and the spring clutch.

上記した従来の構造は、確かにスプリングクラッチ近傍
に、グリス類が付着し、何らかの効果は期待できるが、
真に必要とするスプリングクラッチ6の内周に、確実に
浸透するがという点については不安定なものである。伺
故なら、此のスプリングクラッチ6や、クラッチ切替ギ
ア10は、脱水運転時高速回転する為、どうしても、グ
リス類は外方、即ち、クラッチ切替ギア10の内周面に
飛散してしまい、真に必要とする内周面には移行しない
In the conventional structure described above, it is true that grease adheres to the vicinity of the spring clutch, and although some effects can be expected,
Although it reliably penetrates into the inner periphery of the spring clutch 6 where it is truly needed, it is unstable. If this is the case, the spring clutch 6 and the clutch switching gear 10 rotate at high speed during dehydration operation, so grease inevitably scatters on the outside, that is, on the inner circumferential surface of the clutch switching gear 10, and the It does not migrate to the inner peripheral surface, which is required for

本発明はスプリングクラッチを駆動ボスに挿着する際に
、グリス類がしごかれて付着する量が不足する不具合や
、スプリングクラッチの外方にグリスを介在させた場合
の不都合を解決するもので、以下、その実施例を説明す
る。第3図、第4図に示すように、スプリングクラッチ
16は鋼線を断面略正方形あるいは矩形をなす、いわゆ
る異径力ロ工といわれる平角線に成形し、コイル状に捲
いたものであって、内周部に、1条又は複数条の溝17
を設けている。この溝17の成形加工は、平角線材の成
形時に行う。
The present invention solves the problem that when inserting a spring clutch into a drive boss, the grease is squeezed out and the amount of grease that adheres is insufficient, and the problem that occurs when grease is placed outside the spring clutch. , an example thereof will be described below. As shown in FIGS. 3 and 4, the spring clutch 16 is made by forming a steel wire into a rectangular wire with a substantially square or rectangular cross section, so-called a so-called variable diameter wire, and winding it into a coil. , one or more grooves 17 on the inner circumference
has been established. This groove 17 is formed during the forming of the rectangular wire.

即ち、一般に丸線材より平角線に成形するのは、ロール
加工、あるいは引き抜き加工等で異形加工を行うが、ロ
ール形状あるいは、引き抜きダイスに上記溝加工用突部
を予め形成しておき、平角形状に成形する際に同時に溝
力0工を行えば、とくに別の加工工程を必要としない。
That is, generally, forming a round wire into a rectangular wire is carried out by rolling or drawing into irregular shapes. If the groove force zero machining is performed at the same time when molding, no separate machining process is required.

上記溝17にグリス等の潤滑剤を塗布しているので、ス
プリングクラッチ16を駆動ボス8に挿入する場合に、
しごかれて塗布量が不足するといった事がなく、また、
スプリングクラッチ16の外方等に潤滑剤が塗布させた
ものではない為、真に必要とする摺動部分に十分にグリ
ス等が付着残存しやすい構成となる。
Since the groove 17 is coated with a lubricant such as grease, when inserting the spring clutch 16 into the drive boss 8,
There is no need to apply too much due to straining, and
Since lubricant is not applied to the outside of the spring clutch 16, the structure is such that a sufficient amount of grease etc. tends to adhere to and remain on the sliding parts where it is really needed.

次にスプリングクラッチ6が異形線材よりなる点につい
て今少し詳細に説明する。
Next, the point that the spring clutch 6 is made of a deformed wire will be explained in more detail.

第6図に示すように平角形状をなす線材の上下端には、
若干の面取りあるいは円形角隅18 、18’を設ける
のが一般的である。従って、此の角隅18.18’ の
形状を大きくすれば、本実施例と同様の効果は期待出来
るが、その形状を大きくする事は、駆動ボスとの接触面
積が少なくなり、伝達トルク不足を生じる事になる。
As shown in Figure 6, the upper and lower ends of the rectangular wire rod are
It is common to provide some chamfering or circular corners 18, 18'. Therefore, if the shape of the corners 18 and 18' is made larger, the same effect as in this embodiment can be expected, but making the shape larger will reduce the contact area with the drive boss, resulting in insufficient transmission torque. will occur.

また、捲きつき時に、第6図中、イ部に示すように、ゆ
がんで締まり付き、正しい回転伝達を妨げるばかりでな
く、スプリングクラッチの耐久性にも影響を与える。
Further, when the spring clutch is wound, it becomes distorted and tightened as shown in part A in FIG. 6, which not only prevents correct rotation transmission but also affects the durability of the spring clutch.

以上の様な理由から、本実施例に示すように、潤滑剤溜
めを目的とする溝17を、異形線材の略中央部に一体形
成し、上下端面部分は必要以上に大きい面取り部分とせ
ずに、スプリングクラッチとしての機能が損なわれない
様にする事が望ましい。
For the reasons mentioned above, as shown in this embodiment, the groove 17 for the purpose of lubricant reservoir is integrally formed approximately at the center of the irregularly shaped wire, and the upper and lower end surfaces are not chamfered larger than necessary. It is desirable to prevent the function of the spring clutch from being impaired.

以上のように本発明によれば、異形線材をコイルを成形
し、その内周面に潤滑剤溜め用の溝を形成したことによ
り、従来からの課題であった、グリス等の油温による、
摺動面の劣化、異常音の発生等の不具合を解決でき、し
かも溝は線材を製作する際に、一体に加工できるために
、後加工等を必要とせず、コスト面でも有利である。特
に外方に露出して使用する脱水洗濯機の様に、オイルパ
ン等の内部にて使用が不可能なスプリングクラッチに本
発明を実施すれば、その効果を著しく発揮できる。
As described above, according to the present invention, a coil is formed from a deformed wire material and a groove for a lubricant reservoir is formed on the inner circumferential surface of the coil.
Problems such as deterioration of the sliding surface and generation of abnormal noise can be solved, and since the grooves can be integrally processed when manufacturing the wire, no post-processing is required, which is advantageous in terms of cost. In particular, if the present invention is applied to a spring clutch that cannot be used inside an oil pan or the like, such as a dehydrating washing machine that is exposed to the outside, its effects can be significantly exhibited.

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

第1図は脱水洗濯機の要部断面図、第2図はそのスプリ
ングクラッチ近傍の分解斜視図、第3図は本発明の実施
例におけるスプリングクラッチの外観斜視図、第4図は
その縦断面図、第5図は同要部の拡大断面図、第6図は
従来のスプリングクラッチの要部拡大断面図である。 16・・・・・・スプリングクラッチ、17・・・・・
溝。 代理人の氏名 弁理士 中 尾 敏 男 ほか1名第1
図 第2図 第 3 図 第6図
Fig. 1 is a sectional view of essential parts of a dehydrating washing machine, Fig. 2 is an exploded perspective view of the vicinity of the spring clutch, Fig. 3 is an external perspective view of the spring clutch in an embodiment of the present invention, and Fig. 4 is a vertical cross-section thereof. 5 and 5 are enlarged sectional views of the same essential parts, and FIG. 6 is an enlarged sectional view of the essential parts of a conventional spring clutch. 16... Spring clutch, 17...
groove. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2 Figure 3 Figure 6

Claims (1)

【特許請求の範囲】[Claims] 内周面に潤滑剤溜め用の細溝を有した異径線材をコイル
状に成形し、駆動側軸および従動側軸の外周に換装した
スプリングクラッチ。
A spring clutch in which wire rods of different diameters with thin grooves for lubricant reservoirs are formed into a coil shape on the inner circumferential surface and replaced on the outer circumferences of the driving and driven shafts.
JP9361582A 1982-05-31 1982-05-31 Spring clutch Pending JPS58211023A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9361582A JPS58211023A (en) 1982-05-31 1982-05-31 Spring clutch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9361582A JPS58211023A (en) 1982-05-31 1982-05-31 Spring clutch

Publications (1)

Publication Number Publication Date
JPS58211023A true JPS58211023A (en) 1983-12-08

Family

ID=14087226

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9361582A Pending JPS58211023A (en) 1982-05-31 1982-05-31 Spring clutch

Country Status (1)

Country Link
JP (1) JPS58211023A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0401807A2 (en) * 1989-06-08 1990-12-12 Canon Kabushiki Kaisha Driving force transmitting apparatus
US5325950A (en) * 1992-08-31 1994-07-05 Ingersoll-Rand Company Lubricant remover for a wrap spring clutch
EP2213898A1 (en) * 2009-02-02 2010-08-04 Robert Bosch GmbH Torque block, aggregate with same and method for producing a torque block

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0401807A2 (en) * 1989-06-08 1990-12-12 Canon Kabushiki Kaisha Driving force transmitting apparatus
US5435539A (en) * 1989-06-08 1995-07-25 Canon Kabushiki Kaisha Driving force transmitting apparatus
EP0401807B1 (en) * 1989-06-08 1996-11-13 Canon Kabushiki Kaisha Driving force transmitting apparatus
US5325950A (en) * 1992-08-31 1994-07-05 Ingersoll-Rand Company Lubricant remover for a wrap spring clutch
EP2213898A1 (en) * 2009-02-02 2010-08-04 Robert Bosch GmbH Torque block, aggregate with same and method for producing a torque block

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