WO2004010013A1 - Snap ring for shaft - Google Patents

Snap ring for shaft Download PDF

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Publication number
WO2004010013A1
WO2004010013A1 PCT/JP2002/007959 JP0207959W WO2004010013A1 WO 2004010013 A1 WO2004010013 A1 WO 2004010013A1 JP 0207959 W JP0207959 W JP 0207959W WO 2004010013 A1 WO2004010013 A1 WO 2004010013A1
Authority
WO
WIPO (PCT)
Prior art keywords
retaining ring
shaft
opening
outer peripheral
notches
Prior art date
Application number
PCT/JP2002/007959
Other languages
French (fr)
Japanese (ja)
Inventor
Kouichi Tanaka
Yoshichika Tanaka
Original Assignee
Chubu Bearing Kabushiki Kaisya
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 Chubu Bearing Kabushiki Kaisya filed Critical Chubu Bearing Kabushiki Kaisya
Priority to AU2002313913A priority Critical patent/AU2002313913A1/en
Publication of WO2004010013A1 publication Critical patent/WO2004010013A1/en

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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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
    • F16B21/10—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts
    • F16B21/16—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft
    • F16B21/18—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft with circlips or like resilient retaining devices, i.e. resilient in the plane of the ring or the like; Details
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B43/00—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts
    • F16B43/005—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts engaging the bolt laterally to allow a quick mounting or dismounting of the washer, i.e. without the need to engage over the end of the bolt

Definitions

  • the present invention relates to a retaining ring for a shaft which is fitted into an annular groove of a shaft for positioning or preventing a component such as a bearing mounted on the shaft.
  • E-type retaining ring As a conventional retaining ring for a shaft, a “E-type retaining ring” of JIS 285 is representative.
  • the material of the E-type retaining ring is spring steel or stainless steel for spring, and the annular groove of the shaft is used. Notches having slightly smaller inner diameters are formed at two locations on the inner circumference to facilitate elastic deformation, and openings are provided at one location on the outer circumference.
  • the above-mentioned E-type retaining ring requires a large pressing and pulling force to elastically deform the E-type retaining ring at the time of attachment / detachment, so it is extremely difficult to manually attach / detach the attachment / detachment.
  • the E-type retaining ring may come off from the mounting jig or the dedicated machine during the mounting process due to deviations in the setting posture or pressing direction of the dedicated machine. There was a task that had to be done.
  • the present invention is based on the above-mentioned conventional technology, and in view of the problem that the attaching / detaching operation is difficult and that it is easy to splash during the mounting process, a plurality of C-shaped bases having an opening at one place on the outer periphery are provided at the inner periphery.
  • the inner notch and the protruding piece are alternately formed, and the outer notch is formed in a portion of the outer periphery corresponding to the portion between the inner notches, and the opening is formed so as to expand toward the outer periphery.
  • FIG. 1 is a front view showing a first embodiment of a shaft retaining ring
  • FIG. 2 is a front view showing a second embodiment of the shaft retaining ring
  • FIG. 3 is a shaft stopper.
  • FIG. 4 is a front view showing a third embodiment of the ring
  • FIG. 4 is a front view showing a fourth embodiment of the shaft retaining ring
  • FIG. 5 is a fifth embodiment of the shaft retaining ring.
  • FIG. 6 is a front view showing a sixth embodiment of the shaft retaining ring
  • FIG. 7 is a front view showing the seventh embodiment of the shaft retaining ring. Is a front view showing an eighth embodiment of the shaft retaining ring, FIG.
  • FIG. 9 is a front view showing the ninth embodiment of the shaft retaining ring
  • FIG. 10 is a front view of the shaft retaining ring
  • FIG. 11 is a front view showing the tenth embodiment
  • FIG. 11 is a front view showing the eleventh embodiment of the shaft retaining ring
  • FIG. 12 is a front view of the shaft retaining ring of
  • FIG. Fig. 13 is a view showing a mounting process
  • Fig. 13 is a shaft stopper of Fig. 11
  • Fig. 14 is a view showing a mounting process of the ring
  • Fig. 14 is a cross-sectional view showing a mounted state of a shaft retaining ring
  • Fig. 15 is a mounted state of a shaft retaining ring curved in an arc shape.
  • FIG. 16 is a view showing a method of removing the retaining ring for the shaft in FIGS. 2 and 11.
  • Such a retaining ring for a shaft has a symmetrical shape, and has a plurality of inner cutouts 3, 3a ... and a protruding piece in an inner peripheral portion of a C-shaped base material 2 provided with an opening 1 at one position on an outer peripheral portion. Are formed alternately, and a plurality of outer cutouts 5, 5a are formed in the outer peripheral portion.
  • the material of the substrate 2 is made of metal such as spring steel or spring stainless steel having excellent elasticity, and the inner diameter d of the substrate 2 is set to be smaller than the annular groove T of the shaft S.
  • the opening 1 is formed so as to expand toward the outer peripheral side, and pointed tip portions 6 and 6a are formed on both sides of the opening 1 on the outer peripheral surface of the base material 2.
  • FIGS. 1 and 2 are front views showing first and second embodiments of a shaft retaining ring according to the present invention, wherein four inner cutouts 3 , 3a, 3b, 3c and five projecting pieces 4, 4a, 4b, 4c, 4d, and as shown in FIG. 1, a portion between the inner notches 3, 3a and an inner notch in the outer peripheral portion.
  • Two outer cutouts 5 and 5a are formed in a portion corresponding to the portion between the portions 3b and 3c, and a portion corresponding to the portion between the inner cutouts 3a and 3b, that is, the opening in the base material 2.
  • An arc-shaped concave portion 7 is formed in the outer peripheral portion of the portion opposite to the portion 1 or, as shown in FIG. 2, a portion corresponding to the portion between the inner cutouts 3, 3a, 3b, and 3c in the outer peripheral portion.
  • Three outer cutouts 5, 5a, 5b are formed.
  • the protrusions 4a and 4c between the inner cutouts 3 and 3a and between the inner cutouts 3b and 3c do not abut on the bottom surface of the annular groove T in the mounted state, so that the remaining protrusions 4 and 4c do not abut.
  • the tips of the projecting pieces 44b and 4d are formed in concentric arc shapes.
  • FIGS. 3 and 4 are front views showing third and fourth embodiments of the retaining ring for a shaft according to the present invention, wherein three inner cutouts 3, 3a, 3b and 4 are formed in the inner peripheral portion of the base material 2.
  • Pieces 4, 4 a, 4 b, and 4 c are formed, and two outer notches are formed in the outer peripheral portion at portions corresponding to the portions between the inner notches 3 and 3 a and the portions between the inner notches 3 a and 3 b.
  • Parts 5, 5a are formed.
  • an arc-shaped concave as shown in FIG. 4 is formed on the outer peripheral portion of the base 2 opposite to the opening 1.
  • the part 7 may be formed.
  • FIG. 5 is a front view showing a fifth embodiment of a retaining ring for a shaft according to the present invention, wherein two inner cutouts 3, 3a and three protruding portions 4 are provided on an inner peripheral portion of a base material 2. , 4a, and 4b, and a portion corresponding to the portion between the inner notches 3 and 3a in the outer peripheral portion, a position near the inner notches 3 and 3a, and an outer periphery of a portion of the base 2 opposite to the opening 1.
  • Three outer cutouts 5, 5a, 5b are formed in the section.
  • FIG. 6 is a front view showing a sixth embodiment of a shaft retaining ring according to the present invention, in which three inner cutouts 3, 3a, 3b and four protrusions are provided on an inner peripheral portion of a base material 2.
  • three inner cutouts 3, 3a, 3b and four protrusions are provided on an inner peripheral portion of a base material 2.
  • two outer notches 5, 5a are formed in the outer peripheral portion between the inner notches 3, 3a and in the inner notches 3a, 3b.
  • an inner notch 3a located on the inner peripheral portion of the base 2 opposite to the opening 1 is formed in a substantially T shape.
  • FIG. 5 is a front view showing a seventh embodiment of a shaft retaining ring according to the present invention, in which two inner cutouts 3, 3a and three protruding pieces 4, 4a, 4b are provided on the inner peripheral surface. And an outer notch 5 is formed on a portion of the outer peripheral surface corresponding to the portion between the inner notches 3 and 3a, that is, on the outer peripheral surface of the base 2 opposite to the opening 1.
  • FIGS. 8 and 9 are front views showing the eighth and ninth embodiments of the retaining ring for a shaft according to the present invention.
  • two inner notches 3 and 3a and three protruding pieces 4, 4a, 4b are formed with an outer cutout 5 on the outer peripheral surface, and arcuate concave portions 8, 8a are formed on both sides of the outer cutout 5 on the outer peripheral surface of the base material 2.
  • FIG. 10 is a front view showing a tenth embodiment of the shaft retaining ring according to the present invention.
  • two inner notches 33a and 3b are formed on the inner peripheral surface.
  • FIG. 11 is a front view showing a first embodiment of the shaft retaining ring according to the present invention.
  • FIG. Four inner notches 3, 3a, 3b, 3c and five projecting pieces 4, 4a, 4b, 4c, 4d are formed, and as shown in FIG. 1, inner notches 3, Two outer cutouts 5 and 5a are formed at a position corresponding to a portion between 3a and a portion between inner cutouts 3b and 3c.
  • the base material 2 is curved in an arc shape, and the inner cutouts 3, 3a are bent at the base end, and the inner cutouts 3, 3a are formed in the annular groove T.
  • the component W attached to the shaft S is pressed against the outer peripheral side of the elastically deformed base material 2 while being in contact with the inner surface.
  • the base 2 may be inclined from the inner circumference to the outer circumference, and the base end of the protruding pieces 4, 4a,... On the inner circumference of the base 2 may be bent. Next, the operation of the shaft retaining ring according to the present invention will be described.
  • both sides of the opening 1 are brought into contact with the annular groove S, and FIG. 12 (b)
  • the opening 1 is expanded by pressing, and as shown in FIG. 12 (c), FIG. 13 (c) and FIG. Although it is fitted in the annular groove S, it is deformed with a small pressing force during easy mounting due to the outer cutouts 5, 5a ...
  • a plurality of inner cutouts 3, 3a... And projecting pieces 4, 4a- are alternately formed on the inner peripheral surface of a C-shaped base material 2 provided with an opening 1 at one place on the outer peripheral portion.
  • the outer cutouts 5, 5a,... are formed in the outer peripheral surface at a position corresponding to the portion between the inner cutouts 3, 3a, and the opening 1 is formed so as to expand to the outer peripheral surface. Because it can be elastically deformed, attaching and detaching work can be performed without applying excessive force, and thus simplification of attaching and detaching work can be achieved. Safety at the time can be improved.
  • the projecting portion from the shaft S can be reduced, so that even if it is mounted on a machine with a complicated internal structure, it will not interfere with other parts. It is possible to avoid it.
  • the center line side corners are the tool contact portions 9 and 9a.
  • the base member 2 is curved in an arc shape, and the protruding pieces 4, 4a,... On the inner peripheral side are bent at the base end, the inner cutouts 3, 3a,.

Abstract

In order to solve the problems with a prior art E type snap ring that the snap ring snaps away easily and fixing/removing work thereof is difficult, a plurality of inner notches (3, 3a, ...) and protrusions (4, 4a, ...) are formed alternately at the inner circumferential part of a C-shaped basic material provided with an opening (1) at one position of the outer circumferential part thereof, and outer notches (5, 5a, ...) are formed at the positions of the outer circumferential part corresponding to the parts between the inner notches (3, 3a, ...), wherein the opening (1) is enlarged toward the outer circumferential side. Since the snap ring is resiliently deformed easily without requiring a more than necessary force at the time of fixing/removing, the snap ring for shaft can be fixed/removed easily while preventing it from snapping away especially at the time of fixing.

Description

明糸田 »  Akeita »
軸用止め輪  Retaining ring for shaft
技術分野  Technical field
本発明は、 軸に装着された軸受等の部品の位置決め又は抜け止め のために、 軸の環状溝に嵌着する様にした軸用止め輪に関する。 背景技術  The present invention relates to a retaining ring for a shaft which is fitted into an annular groove of a shaft for positioning or preventing a component such as a bearing mounted on the shaft. Background art
従来の軸用止め輪としては、 J I S 2 8 0 5の 「E型止め輪」 が 代表的であり、 該 E型止め輪の材質をばね用鋼又はばね用ステンレ ス鋼とし、 軸の環状溝より若干小さい内径を有し、 内周部の二箇所 に、 弾性変形を容易にするための切欠部が形成され、 外周の一箇所 に開口部を設けている。  As a conventional retaining ring for a shaft, a “E-type retaining ring” of JIS 285 is representative. The material of the E-type retaining ring is spring steel or stainless steel for spring, and the annular groove of the shaft is used. Notches having slightly smaller inner diameters are formed at two locations on the inner circumference to facilitate elastic deformation, and openings are provided at one location on the outer circumference.
そして、 E型止め輪を装着する際には、 先端に E型止め輪をセッ 卜した装着用治具を手で持ったり、 専用機械にセッ トして、 E型止 め輪の開口部の両側面を環状溝に押圧し開口部を拡開させることで、 E型止め輪を環状溝に嵌着すると共に、 弾性復元力により環状溝を 挟着し軸に締着される様に成っている。  When mounting the E-shaped retaining ring, hold the mounting jig with the E-shaped retaining ring at the tip by hand, or set it on a special machine to close the opening of the E-shaped retaining ring. By pressing both sides into the annular groove and expanding the opening, the E-shaped retaining ring is fitted into the annular groove, and the elastic groove is clamped by the elastic restoring force and fastened to the shaft. I have.
又、 取付状態の E型止め輪を取り外す際には、 開口部の両側の外 周面に形成される尖端状の先端部を押圧し開口部を拡開させる様に したり、 或いは E型止め輪における開口部の反対側部位をペンチ、 プライヤ等の工具で摑んで引き抜く様にしている。  Also, when removing the E-type retaining ring in the attached state, press the pointed tip formed on the outer peripheral surface on both sides of the opening to expand the opening, or The part of the ring opposite to the opening is pulled out with a tool such as pliers or pliers.
しかし、 上記 E型止め輪では、 着脱時には E型止め輪を弾性変形 させるための大きな押圧 ·引張力が必要になるため、 手作業による 着脱は非常に困難であり、 而も装着用治具又は専用機械へのセッ ト 姿勢や押圧方向のずれにより、 装着過程で装着用治具又は専用機械 から E型止め輪が外れて撥ね飛ぶことが多々有り、 非常に危険であ るなど、 解決せねばならない課題があった。 発明の開示 本発明は、 上記従来技術に基づく、 着脱作業が困難で、 装着過程 で撥ね飛び易い課題に鑑み、 外周部の一箇所に開口部を設けた C型 状の基材の内周部に複数個の内側切欠部及び突片部を交互形成する と共に、 外周部における、 上記内側切欠部間の部分に相当する部位 に外側切欠部を形成し、 開口部を外周側へ拡開する様に形成するこ とによって、 必要以上に力を入れなくても弾性変形させることを可 能にすることで、 軸用止め輪の着脱作業の簡易化を図ると共に、 E 型止め輪の離脱による撥ね飛びが無く装着作業を安全化する様にし て、 上記課題を解決する。 図面の簡単な説明 However, the above-mentioned E-type retaining ring requires a large pressing and pulling force to elastically deform the E-type retaining ring at the time of attachment / detachment, so it is extremely difficult to manually attach / detach the attachment / detachment. The E-type retaining ring may come off from the mounting jig or the dedicated machine during the mounting process due to deviations in the setting posture or pressing direction of the dedicated machine. There was a task that had to be done. Disclosure of the invention The present invention is based on the above-mentioned conventional technology, and in view of the problem that the attaching / detaching operation is difficult and that it is easy to splash during the mounting process, a plurality of C-shaped bases having an opening at one place on the outer periphery are provided at the inner periphery. The inner notch and the protruding piece are alternately formed, and the outer notch is formed in a portion of the outer periphery corresponding to the portion between the inner notches, and the opening is formed so as to expand toward the outer periphery. This makes it possible to perform elastic deformation without applying excessive force, thereby simplifying the work of attaching and detaching the shaft retaining ring, and preventing splashing due to detachment of the E-shaped retaining ring. The above problems are solved by making the mounting work safe. BRIEF DESCRIPTION OF THE FIGURES
第 1図は、 軸用止め輪の第 1実施例を示す正面図であり、 第 2図 は、 軸用止め輪の第 2実施例を示す正面図であり、 第 3図は、 軸用 止め輪の第 3実施例を示す正面図であり、 第 4図は、 軸用止め輪の 第 4実施例を示す正面図であり、 第 5図は、 軸用止め輪の第 5実施 例を示す正面図であり、 第 6図は、 軸用止め輪の第 6実施例を示す 正面図であり、 第 7図は、 軸用止め輪の第 7実施例を示す正面図で あり、 第 8図は、 軸用止め輪の第 8実施例を示す正面図であり、 第 9図は、 軸用止め輪の第 9実施例を示す正面図であり、 第 1 0図は、 軸用止め輪の第 1 0実施例を示す正面図であり、 第 1 1図は、 軸用 止め輪の第 1 1実施例を示す正面図であり、 第 1 2図は、 第 2図の 軸用止め輪の装着過程を示す図であり、 第 1 3図は、 第 1 1図の軸 用止め輪の装着過程を示す図であり、 第 1 4図は、 軸用止め輪の装 着状態を示す断面図であり、 第 1 5図は、 弓形に湾曲させた軸用止 め輪の装着状態を示す断面図であり、 第 1 6図は、 第 2、 1 1図の 軸用止め輪の取り外し方法を示す図である。 発明を実施するための最良の形態  FIG. 1 is a front view showing a first embodiment of a shaft retaining ring, FIG. 2 is a front view showing a second embodiment of the shaft retaining ring, and FIG. 3 is a shaft stopper. FIG. 4 is a front view showing a third embodiment of the ring, FIG. 4 is a front view showing a fourth embodiment of the shaft retaining ring, and FIG. 5 is a fifth embodiment of the shaft retaining ring. FIG. 6 is a front view showing a sixth embodiment of the shaft retaining ring, and FIG. 7 is a front view showing the seventh embodiment of the shaft retaining ring. Is a front view showing an eighth embodiment of the shaft retaining ring, FIG. 9 is a front view showing the ninth embodiment of the shaft retaining ring, and FIG. 10 is a front view of the shaft retaining ring. FIG. 11 is a front view showing the tenth embodiment, FIG. 11 is a front view showing the eleventh embodiment of the shaft retaining ring, and FIG. 12 is a front view of the shaft retaining ring of FIG. Fig. 13 is a view showing a mounting process, and Fig. 13 is a shaft stopper of Fig. 11; Fig. 14 is a view showing a mounting process of the ring, Fig. 14 is a cross-sectional view showing a mounted state of a shaft retaining ring, and Fig. 15 is a mounted state of a shaft retaining ring curved in an arc shape. FIG. 16 is a view showing a method of removing the retaining ring for the shaft in FIGS. 2 and 11. BEST MODE FOR CARRYING OUT THE INVENTION
以下本発明の実施の形態を図面に基づいて説明すると、 本発明に 係る軸用止め輪は、 左右対称形状で、 外周部の一箇所に開口部 1を 設けた C型状の基材 2の内周部に複数個の内側切欠部 3、 3a…及び 突片部 4、 4a…を交互形成すると共に、 外周部に複数個の外側切欠 部 5、 5a…を形成している。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. Such a retaining ring for a shaft has a symmetrical shape, and has a plurality of inner cutouts 3, 3a ... and a protruding piece in an inner peripheral portion of a C-shaped base material 2 provided with an opening 1 at one position on an outer peripheral portion. Are formed alternately, and a plurality of outer cutouts 5, 5a are formed in the outer peripheral portion.
基材 2の材質は、 弾性に優れたばね用鋼又はばね用ステンレス鋼 の様な金属製として、 基材 2の内径 dを、 軸 Sの環状溝 Tより小径 に設定している。  The material of the substrate 2 is made of metal such as spring steel or spring stainless steel having excellent elasticity, and the inner diameter d of the substrate 2 is set to be smaller than the annular groove T of the shaft S.
開口部 1を外周側へ拡開する様に形成して、 基材 2の外周面にお ける開口部 1の両側に尖端状の先端部 6、 6aを形成している。  The opening 1 is formed so as to expand toward the outer peripheral side, and pointed tip portions 6 and 6a are formed on both sides of the opening 1 on the outer peripheral surface of the base material 2.
具体的に説明すると、 第 1、 2図は、 本発明に係る軸用止め輪の 第 1、 2実施例を示す正面図であり、 基材 2の内周部に 4個の内側 切欠部 3、 3a、 3b、 3c及び 5個の突片部 4、 4a、 4b、 4c、 4dを形成 すると共に、 第 1図に示す様に、 外周部における内側切欠部 3、 3a 間の部分及び内側切欠部 3b、 3c間の部分に相当する部位に 2個の外 側切欠部 5、 5aを形成し、 内側切欠部 3a、 3b間の部分に相当する部 位、 即ち、 基材 2における開.口部 1の反対側部位の外周部に円弧状 の凹部 7を形成したり、 或いは第 2図に示す様に、 外周部における 内側切欠部 3、 3a、 3b、 3c間の部分に相当する部位に 3個の外側切 欠部 5、 5a、 5bを形成している。  More specifically, FIGS. 1 and 2 are front views showing first and second embodiments of a shaft retaining ring according to the present invention, wherein four inner cutouts 3 , 3a, 3b, 3c and five projecting pieces 4, 4a, 4b, 4c, 4d, and as shown in FIG. 1, a portion between the inner notches 3, 3a and an inner notch in the outer peripheral portion. Two outer cutouts 5 and 5a are formed in a portion corresponding to the portion between the portions 3b and 3c, and a portion corresponding to the portion between the inner cutouts 3a and 3b, that is, the opening in the base material 2. An arc-shaped concave portion 7 is formed in the outer peripheral portion of the portion opposite to the portion 1 or, as shown in FIG. 2, a portion corresponding to the portion between the inner cutouts 3, 3a, 3b, and 3c in the outer peripheral portion. Three outer cutouts 5, 5a, 5b are formed.
尚、 内側切欠部 3、 3a間及び内側切欠部 3b、 3c間の突片部 4a、 4c の先端を、 装着状態において環状溝 Tの底面に当接しない様に、 残 る突片部 4、 4b、 4dの先端より外周側に設定すると共に、 突片部 4 4b、 4dの先端を同心円上の円弧形状に形成している。  It should be noted that the protrusions 4a and 4c between the inner cutouts 3 and 3a and between the inner cutouts 3b and 3c do not abut on the bottom surface of the annular groove T in the mounted state, so that the remaining protrusions 4 and 4c do not abut. In addition to being set on the outer peripheral side from the tips of 4b and 4d, the tips of the projecting pieces 44b and 4d are formed in concentric arc shapes.
第 3、 4図は、 本発明に係る軸用止め輪の第 3、 4実施例を示す 正面図であり、 基材 2の内周部に 3個の内側切欠部 3、 3a、 3b及び 4個の突片部 4、 4a、 4b、 4cを形成すると共に、 外周部における内 側切欠部 3、 3a間の部分及び内側切欠部 3a、 3b間の部分に相当する 部位に 2個の外側切欠部 5、 5aを形成している。 又、 基材 2におけ る開口部 1の反対側部位の外周部に、 第 4図に示す様な円弧状の凹 部 7を形成しても良い。 FIGS. 3 and 4 are front views showing third and fourth embodiments of the retaining ring for a shaft according to the present invention, wherein three inner cutouts 3, 3a, 3b and 4 are formed in the inner peripheral portion of the base material 2. Pieces 4, 4 a, 4 b, and 4 c are formed, and two outer notches are formed in the outer peripheral portion at portions corresponding to the portions between the inner notches 3 and 3 a and the portions between the inner notches 3 a and 3 b. Parts 5, 5a are formed. In addition, an arc-shaped concave as shown in FIG. 4 is formed on the outer peripheral portion of the base 2 opposite to the opening 1. The part 7 may be formed.
第 5図は、 本発明に係る軸用止め輪の第 5実施例を示す正面図で あり、 基材 2の内周部に 2個の内側切欠部 3、 3a及び 3個の突片部 4、 4a、 4bを形成すると共に、 外周部における内側切欠部 3、 3a間 の部分に相当する部位にして内側切欠部 3、 3aに近い位置及び基材 2における開口部 1の反対側部位の外周部に 3個の外側切欠部 5、 5a、 5bを形成している。  FIG. 5 is a front view showing a fifth embodiment of a retaining ring for a shaft according to the present invention, wherein two inner cutouts 3, 3a and three protruding portions 4 are provided on an inner peripheral portion of a base material 2. , 4a, and 4b, and a portion corresponding to the portion between the inner notches 3 and 3a in the outer peripheral portion, a position near the inner notches 3 and 3a, and an outer periphery of a portion of the base 2 opposite to the opening 1. Three outer cutouts 5, 5a, 5b are formed in the section.
第 6図は、 本発明に係る軸用止め輪の第 6実施例を示す正面図で あり、 基材 2の内周部に 3個の内側切欠部 3、 3a、 3b及び 4個の突 片部 4、 4a、 4b、 4cを形成すると共に、 外周部における内側切欠部 3、 3a間の部分及び内側切欠部 3a、 3bに 2個の外側切欠部 5、 5aを 形成している。 又、 基材 2における開口部 1の反対側部位の内周部 に位置する内側切欠部 3aを略 T字状に形成している。  FIG. 6 is a front view showing a sixth embodiment of a shaft retaining ring according to the present invention, in which three inner cutouts 3, 3a, 3b and four protrusions are provided on an inner peripheral portion of a base material 2. In addition to forming the portions 4, 4a, 4b, 4c, two outer notches 5, 5a are formed in the outer peripheral portion between the inner notches 3, 3a and in the inner notches 3a, 3b. Further, an inner notch 3a located on the inner peripheral portion of the base 2 opposite to the opening 1 is formed in a substantially T shape.
第 Ί図は、 本発明に係る軸用止め輪の第 7実施例を示す正面図で あり、 内周面に 2個の内側切欠部 3、 3a及び 3個の突片部 4、 4a、 4bを形成すると共に、 外周面における内側切欠部 3、 3a間部分に相 当する部位、 即ち、 基材 2における開口部 1の反対側部位の外周面 に外側切欠部 5を形成している。  FIG. 5 is a front view showing a seventh embodiment of a shaft retaining ring according to the present invention, in which two inner cutouts 3, 3a and three protruding pieces 4, 4a, 4b are provided on the inner peripheral surface. And an outer notch 5 is formed on a portion of the outer peripheral surface corresponding to the portion between the inner notches 3 and 3a, that is, on the outer peripheral surface of the base 2 opposite to the opening 1.
第 8、 9図は、 本発明に係る軸用止め輪の第 8、 9実施例を示す 正面図であり、 上記第 7実施例と同様に、 内周面に 2個の内側切欠 部 3、 3a及び 3個の突片部 4、 4a、 4bを、 外周面に外側切欠部 5を 形成すると共に、 基材 2の外周面における外側切欠部 5の両側部位 に円弧状の凹部 8、 8aを形成している。  FIGS. 8 and 9 are front views showing the eighth and ninth embodiments of the retaining ring for a shaft according to the present invention. As in the seventh embodiment, two inner notches 3 and 3a and three protruding pieces 4, 4a, 4b are formed with an outer cutout 5 on the outer peripheral surface, and arcuate concave portions 8, 8a are formed on both sides of the outer cutout 5 on the outer peripheral surface of the base material 2. Has formed.
第 1 0図は、 本発明に係る軸用止め輪の第 1 0実施例を示す正面 図であり、 上記第 7実施例と同様に、 内周面に 2個の内側切欠部 3 3a及び 3個の突片部 4、 4a、 4bを形成すると共に、 外周面における 内側切欠部 3、 3a間部分に相当する部位、 即ち、 基材 2における開 口部 1の反対側部位及び基材 2の外周面における、 内側切欠部 3、 3aと開口部 1間部分に相当する部位に 3個の外側切欠部 5、 5a、 5b を形成している。 FIG. 10 is a front view showing a tenth embodiment of the shaft retaining ring according to the present invention. As in the seventh embodiment, two inner notches 33a and 3b are formed on the inner peripheral surface. Pieces 4, 4 a, and 4 b, and a portion of the outer peripheral surface corresponding to the portion between the inner cutouts 3 and 3 a, that is, a portion of the base material 2 opposite to the opening 1 and a portion of the base material 2. Three outer cutouts 5, 5a, 5b in the outer peripheral surface at a position corresponding to the portion between the inner cutouts 3, 3a and the opening 1. Is formed.
第 1 1図は、 本発明に係る軸用止め輪の第 1 1実施例を示す正面 図であり、 軸用止め輪の第 1、 2実施例と同様に、 基材 2の内周部 に 4個の内側切欠部 3、 3a、 3b、 3c及び 5個の突片部 4、 4a、 4b、 4c、 4dを形成すると共に、 第 1図に示す様に、 外周部における内側 切欠部 3、 3a間の部分及び内側切欠部 3b、 3c間の部分に相当する部 位に 2個の外側切欠部 5、 5aを形成している。  FIG. 11 is a front view showing a first embodiment of the shaft retaining ring according to the present invention. As in the first and second embodiments of the shaft retaining ring, FIG. Four inner notches 3, 3a, 3b, 3c and five projecting pieces 4, 4a, 4b, 4c, 4d are formed, and as shown in FIG. 1, inner notches 3, Two outer cutouts 5 and 5a are formed at a position corresponding to a portion between 3a and a portion between inner cutouts 3b and 3c.
第 1、 2図に示す 4〜6に示す軸用止め輪の外側切欠部 5、 5a- における、 開口部 1の反対側に位置すると共に基材 2の中心線に対 し対称位置の 2個の中心線側角部を、 軸 Sから軸用止め輪を外すぺ ンチ、 プライヤ等の工具の当接部 9、 9aとしている。  In the outer notches 5, 5a- of the retaining rings for shafts shown in 4 to 6 shown in Figs. 1 and 2, two of them are located on the opposite side of the opening 1 and symmetrical with respect to the center line of the base material 2. The corners on the center line side of are formed as abutting portions 9 and 9a for tools such as pliers and pliers for removing the shaft retaining ring from the shaft S.
又、 第 1 5図に示す様に、 基材 2を弓形に湾曲させると共に、 内 側切欠部 3、 3a…を基端部で屈曲し、 該内側切欠部 3、 3a…が環状 溝 Tの内側面に当接すると共に、 弾性変形した基材 2の外周側で、 軸 Sに装着した部品 Wを押圧する様にしている。  As shown in FIG. 15, the base material 2 is curved in an arc shape, and the inner cutouts 3, 3a are bent at the base end, and the inner cutouts 3, 3a are formed in the annular groove T. The component W attached to the shaft S is pressed against the outer peripheral side of the elastically deformed base material 2 while being in contact with the inner surface.
又、 図示しないが、 基材 2を内周側より外周側へ傾斜させると共 に、 該基材 2の内周側の突片部 4、 4a…の基端部を屈曲しても良い 次に本発明に係る軸用止め輪の作用について説明する。  Although not shown, the base 2 may be inclined from the inner circumference to the outer circumference, and the base end of the protruding pieces 4, 4a,... On the inner circumference of the base 2 may be bent. Next, the operation of the shaft retaining ring according to the present invention will be described.
軸 Sへの装着時には、 先ず第 1 2図 （a ) 、 第 1 3図 （a ) に示 す様に、 開口部 1の両側面を環状溝 Sに当接し、 第 1 2図 （b ) 、 第 1 3図 （b ) に示す様に、 押圧して開口部 1を拡開させて、 第 1 2図 （c ) 、 第 1 3図 （c ) 、 第 1 6図に示す様に、 環状溝 Sに嵌 着されるが、 外側切欠部 5、 5a…により容易装着時に小さい押圧力 で変形する。  At the time of mounting on the shaft S, first, as shown in FIGS. 12 (a) and 13 (a), both sides of the opening 1 are brought into contact with the annular groove S, and FIG. 12 (b) As shown in FIG. 13 (b), the opening 1 is expanded by pressing, and as shown in FIG. 12 (c), FIG. 13 (c) and FIG. Although it is fitted in the annular groove S, it is deformed with a small pressing force during easy mounting due to the outer cutouts 5, 5a ...
軸 Sからの取り外し時には、 第 1 6図に示す様に、 工具当接部 9 9aにペンチ、 プライヤ等の工具を当てて摑んで引っ張れば、 開口部 1が拡開して外れる。 尚、 第 1 6図においては、 第 2、 1 1図に示 す軸用止め輪で説明しているが、 第 1、 4〜6図に示す軸用止め輪 でも同様に外すことが可能である。 又、 単に先端部 6、 6aを同時に押すことで開口部 1を拡開させて 外すこと'も可能である。 At the time of removal from the shaft S, as shown in FIG. 16, if a tool such as pliers or a pair of pliers is applied to the tool contact portion 99a and pulled, the opening 1 is expanded and comes off. In FIG. 16, the shaft retaining ring shown in FIGS. 2 and 11 has been described, but the shaft retaining ring shown in FIGS. 1 and 4 to 6 can be removed in the same manner. is there. It is also possible to expand and remove the opening 1 simply by pressing the tips 6 and 6a simultaneously.
基材 2における開口部 1の反対側部位に外側切欠部 5、 5a…のど れか又は凹部 7があれば、 装着用治具又は専用機械に対し正しい姿 勢でセッ 卜することが可能になる。 産業上の利用可能性  If any one of the outer cutouts 5, 5a, etc. or the recess 7 is provided on the opposite side of the opening 1 in the base material 2, it is possible to set the mounting jig or the dedicated machine in a correct posture. . Industrial applicability
要するに本発明は、 外周部の一箇所に開口部 1を設けた C型状の 基材 2の内周面に複数個の内側切欠部 3、 3a…及び突片部 4、 4a- を交互形成すると共に、 外周面における、 上記内側切欠部 3、 3a 間部分に相当する部位に外側切欠部 5、 5a…を形成し、 開口部 1を 外周面へ拡開する様に形成したので、 容易に弾性変形させることが 出来るため、 必要以上の力を入れずに着脱作業を行うことが出来、 よって着脱作業の簡易化を図ることが出来、 而も装着過程で止め輪 が撥ね飛ばず、 装着作業時の安全性の向上を図ることが出来る。 又、 従来の E型止め輪と同様にコンパク ト化を図ることで、 軸 S からの突出部位を少なくすることが出来るため、 内部構造の複雑な 機械に取り付けても、 他の部品の邪魔にならない様にすることが出 来る。  In short, according to the present invention, a plurality of inner cutouts 3, 3a... And projecting pieces 4, 4a- are alternately formed on the inner peripheral surface of a C-shaped base material 2 provided with an opening 1 at one place on the outer peripheral portion. In addition, the outer cutouts 5, 5a,... Are formed in the outer peripheral surface at a position corresponding to the portion between the inner cutouts 3, 3a, and the opening 1 is formed so as to expand to the outer peripheral surface. Because it can be elastically deformed, attaching and detaching work can be performed without applying excessive force, and thus simplification of attaching and detaching work can be achieved. Safety at the time can be improved. Also, by making it compact as in the case of the conventional E-type retaining ring, the projecting portion from the shaft S can be reduced, so that even if it is mounted on a machine with a complicated internal structure, it will not interfere with other parts. It is possible to avoid it.
外側切欠部 5、 5a…における、 開口部 1の反対側に位置すると共 に基材の中心線に対し対称位置の 2個の、 中心線側角部を工具当接 部 9、 9aとしたので、 該工具当接部 9、 9aに工具を当てれば、 装着 状態の止め輪を工具で摑むことが出来るため、 取り外し作業の容易 化を図ることが出来る。 - 基材 2を弓形に湾曲させると共に、 内周側の突片部 4、 4a…を基 端部で屈曲したので、 かかる軸用止め輪を装着した状態では、 内側 切欠部 3、 3a…が、 嵌まり込んだ環状溝 Tの内側面に当接すると共 に、 弾性変形状態の基材 2の外周部で、 軸 Sに装着した部品 Wが押 圧されるため、 軸 Sに対する部品 Wの位置決めを環状溝 Tの幅とは 無関係に行うことが出来る等その実用的効果甚だ大である。 Since the two notch portions 5 and 5a, which are located on the opposite side of the opening 1 and are symmetrical with respect to the center line of the base material, the center line side corners are the tool contact portions 9 and 9a. However, if a tool is applied to the tool abutting portions 9 and 9a, the retaining ring in the mounted state can be closed with a tool, so that removal work can be facilitated. -Since the base member 2 is curved in an arc shape, and the protruding pieces 4, 4a,... On the inner peripheral side are bent at the base end, the inner cutouts 3, 3a,. However, since the component W mounted on the shaft S is pressed against the outer peripheral portion of the base material 2 in an elastically deformed state while being in contact with the inner surface of the fitted annular groove T, the component W with respect to the shaft S is pressed. What is the width of the annular groove T for positioning? Its practical effect is enormous, for example, it can be performed independently.

Claims

請求の範囲 . 外周部の一箇所に開口部を設けた C型状の基材の内周部に複数 個の内側切欠部及び突片部を交互形成すると共に、 外周部におけ る、 上記内側切欠部間の部分に相当する部位に外側切欠部を形成 し、 開口部を外周側へ拡開する様に形成したことを特徴とする軸 用止め輪。Claims. A plurality of inner cutouts and projecting pieces are alternately formed in the inner peripheral portion of a C-shaped base material provided with an opening at one position in the outer peripheral portion, and the inner side in the outer peripheral portion is formed. An outer ring notch is formed at a portion corresponding to a portion between the notches, and the opening is formed so as to expand toward an outer peripheral side.
. 外側切欠部における、 開口部の反対側に位置すると共に基材の 中心線に対し対称位置の 2個の開口部の中心線側角部を工具当接 部としたことを特徴とする請求項 1記載の軸用止め輪。The center line side corners of the two openings located on the opposite side of the outer notch and opposite to the opening and symmetrical with respect to the center line of the base material are tool contact parts. The retaining ring for shafts described in 1.
. 基材を弓形に湾曲させると共に、 内周側の突片部を基端部で屈 曲したことを特徴とする請求項 1又は 2記載の軸用止め輪。 3. The retaining ring for a shaft according to claim 1, wherein the base material is curved in an arc shape, and the protruding piece on the inner peripheral side is bent at a base end.
PCT/JP2002/007959 2002-07-19 2002-08-05 Snap ring for shaft WO2004010013A1 (en)

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CN107735586A (en) * 2015-07-30 2018-02-23 株式会社Lg化学 Backing plate

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Publication number Priority date Publication date Assignee Title
CN104533914A (en) * 2014-11-11 2015-04-22 中国北方发动机研究所(天津) Elastic bearing retainer ring applicable to internal combustion engine
CN104659989A (en) * 2015-01-09 2015-05-27 广东威灵电机制造有限公司 Motor and split washer thereof

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US4343581A (en) * 1979-05-21 1982-08-10 Waldes Kohinoor, Inc. Double-bevel spring retaining ring
JPS6239012U (en) * 1985-08-29 1987-03-09
JPH02143513U (en) * 1989-05-08 1990-12-05
JPH03107522U (en) * 1990-02-21 1991-11-06
JPH0642514A (en) * 1992-07-21 1994-02-15 Masao Kubota Retaining ring

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US4006659A (en) * 1973-05-31 1977-02-08 Waldes Kohinoor, Inc. Spring-metal retaining rings
US4343581A (en) * 1979-05-21 1982-08-10 Waldes Kohinoor, Inc. Double-bevel spring retaining ring
JPS6239012U (en) * 1985-08-29 1987-03-09
JPH02143513U (en) * 1989-05-08 1990-12-05
JPH03107522U (en) * 1990-02-21 1991-11-06
JPH0642514A (en) * 1992-07-21 1994-02-15 Masao Kubota Retaining ring

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CN107735586A (en) * 2015-07-30 2018-02-23 株式会社Lg化学 Backing plate

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