JPH0719610U - Retaining ring for both shaft and hole - Google Patents

Abstract

(57)【要約】 【目的】 軸用と穴用のいずれにも共用できるようにす
る。 【構成】 略Ｃ形状の止め輪本体における両端部に差し
込み孔を開口すると共に、少なくとも一方の端部近くに
差し込み孔を開口してある。 (57) [Summary] [Purpose] To be used for both shafts and holes. [Structure] Insert holes are formed at both ends of a substantially C-shaped retaining ring body, and insert holes are formed near at least one end.

Description

【考案の詳細な説明】[Detailed description of the device]

【０００１】[0001]

【産業上の利用分野】[Industrial applications]

本考案は軸用あるいは穴用のいずれにも使用可能な軸・穴兼用の止め輪に関す る。 The present invention relates to a retaining ring for both shafts and holes that can be used for both shafts and holes.

【０００２】[0002]

【従来の技術】[Prior art]

従来のＣ形止め輪には、軸用のものと穴用のものがある。例えば軸用のＣ形止 め輪では両端部の差込み孔に着脱工具の先部を差し込み、両端部間を広げて内径 を大きくして軸面の溝部に嵌合および取り外し自在であり、また穴用のＣ形止め 輪では両端部の差込み孔に着脱工具の先部を差し込み、両端部間を狭めて外径を 小さくして穴面の溝部に嵌合および取り外し自在であり、それぞれ着脱作業が容 易である利点を有している。 Conventional C-shaped retaining rings include those for shafts and those for holes. For example, in a C type snap ring for a shaft, insert the tip of the attachment / detachment tool into the insertion holes at both ends, expand the space between both ends to increase the inner diameter, and then fit and remove it in the groove on the shaft surface. For the C-shaped retaining ring, the tip of the attachment / detachment tool is inserted into the insertion holes at both ends, and the outer diameter is reduced by narrowing the space between both ends to allow fitting and removal in the groove of the hole surface. It has the advantage of being easy.

【０００３】 ところで、前記した従来のＣ形止め輪は軸用と穴用の専用のものであるから、 次の問題がある。ａ．軸用のものは軸用にしか使えないし、穴用のものでは穴用 にしか使えないという使用上の制限がある。ｂ．プレス成形金型が軸用と穴用の 双方必要である。ｃ．軸用のものと穴用のものに別けて製作・保管・管理する手 間がかかる。By the way, since the above-mentioned conventional C-shaped retaining ring is dedicated for the shaft and the hole, it has the following problems. a. There is a limitation in use that the one for the shaft can be used only for the shaft and the one for the hole can be used only for the hole. b. Press molds are required for both shafts and holes. c. It takes time to manufacture, store, and manage the shaft and hole separately.

【０００４】[0004]

【考案が解決しようとする課題】[Problems to be solved by the device]

解決しようとする課題は、軸用のものと、穴用のものに専用設計されていて、 構造的に共用できないことである。 The problem to be solved is that it is designed exclusively for the shaft and the hole, and cannot be structurally shared.

【０００５】[0005]

【課題を解決するための手段】[Means for Solving the Problems]

前記の課題を解決するため、略Ｃ形状の止め輪本体における両端部に差し込み 孔を開口すると共に、少なくとも一方の端部近くに差し込み孔を開口したことを 特徴とする。 In order to solve the above-mentioned problems, insertion holes are formed at both ends of the snap ring body having a substantially C shape, and insertion holes are formed near at least one end.

【０００６】 本発明における両端部の対向状の先端部分は、表面側から裏面側に向けて平行 状に傾斜させて形成するのが良く、止め輪本体の縮径時に両端部が相互に重なり 易く、穴の溝部に対する着脱作業をスムーズに行い得る。また、両端部の間隔は 任意であり、小さくても大きくても良く、溝部への嵌合強度と、被固定体の固定 強度等を考慮して決定すれば良い。In the present invention, the opposite end portions of both ends are preferably formed by inclining in parallel from the front surface side to the back surface side, and both end portions easily overlap each other when the diameter of the retaining ring body is reduced. The work of attaching / detaching to / from the groove of the hole can be smoothly performed. The distance between both ends is arbitrary, and may be small or large, and may be determined in consideration of the fitting strength into the groove, the fixing strength of the fixed body, and the like.

【０００７】 また、両端部の間隔、一方の端部の差し込み孔と他方の端部近くの差し込み孔 との間隔は任意であり、たとえば、着脱工具を一方の端部の差し込み孔と他方の 端部近くの差し込み孔に差し込んで穴の溝部に嵌合可能まで縮径させた際に、他 方の端部が一方の端部に乗り上げて同端部の差し込み孔に差し込み状の着脱工具 先端に当接する程度に設定して、この当接ショックによって止め輪本体が穴の溝 部に対して着脱し得ることを確認できるようにすると共に、縮小を阻止されて縮 小され過ぎによる止め輪本体の変形が発生しないようにしても良い。この関係は 、差し込み孔を双方の両端部近くに開口している態様の場合についても同様であ る。[0007] Furthermore, the distance between both ends and the distance between the insertion hole at one end and the insertion hole near the other end are arbitrary. For example, a detachable tool may be attached to the insertion hole at one end and the other end. When it is inserted into the insertion hole near the part and reduced in diameter so that it can fit in the groove of the hole, the other end rides on one end and inserts into the insertion hole of the same end. The contact ring is set so that it can be confirmed that the retaining ring body can be attached to and detached from the groove of the hole by this contact shock. The deformation may not occur. This relationship also applies to the case where the insertion holes are opened near both ends of both.

【０００８】 止め輪本体の横断面形状は望ましくは矩形状であるが、他の形状たとえば円形 状、正方形状、その他の形状であっても良い。材質は、公知の部材であり、バネ 部材等の金属、エンジニアプラスチック等の樹脂が挙げられる。The cross-sectional shape of the snap ring body is preferably rectangular, but may be other shapes such as circular, square, and other shapes. The material is a known member, and examples thereof include metal such as a spring member and resin such as engineer plastic.

【０００９】[0009]

【作用】[Action]

本考案では、略Ｃ形状の止め輪本体における両端部に差し込み孔を開口すると 共に、少なくとも一方の端部近くに差し込み孔を開口してあるため、軸の溝部に 対する着脱時には両端部の差し込み孔に着脱工具を差し込んで止め輪本体径を拡 大させ、穴の溝部に対する着脱時には一端部の差し込み孔と他端部近くの差し込 み孔に着脱工具を差し込んで止め輪本体径を縮小させることにより、軸あるいは 穴の溝部に対して迅速に着脱できると共に、軸用、穴用のいずれにも着脱できて 共用することができる。 According to the present invention, since the insertion holes are opened at both ends of the retaining ring body having the substantially C shape, and the insertion holes are opened near at least one end, the insertion holes at both ends are attached and detached to / from the groove portion of the shaft. To increase the diameter of the retaining ring body by inserting the attachment / detachment tool into the groove, and to attach / detach the attaching / detaching tool to the insertion hole at one end and the insertion hole near the other end when attaching / detaching to / from the groove of the hole, reduce the diameter of the retaining ring body. This makes it possible to quickly attach / detach to / from the groove of the shaft or the hole, and attach / detach to / from both the shaft and the hole.

【００１０】 そして、止め輪本体を各差し込み孔ともどもプレス成形等によって容易に製作 することができ、一つの成形金型で賄えると共に、軸用と穴用に別ける必要性が なくなって製作・保管・管理しやすく経済的効果が大きい。The retaining ring main body can be easily manufactured by press molding or the like together with each insertion hole, and it can be covered by one molding die, and there is no need to separate it for the shaft and the hole. Easy to manage and great economic effect.

【００１１】[0011]

【実施例】【Example】

図１には本考案の軸・穴兼用止め輪の第１実施例を例示しており、略Ｃ形状の 止め輪本体１は、短辺側を厚さとして長辺側を表裏面とした横断面略矩形状のも ので、内周縁は外周縁と同心円状の左右両端部２，３内縁部分を除いて、中間部 分から左右両端部に向けて外周縁との間の幅が次第に狭まった態様の非同心円状 に形成してあり、左右両端部２，３の円周方向への開閉動作により弾性的に縮径 および拡径そして弾性復帰自在にしてある。 FIG. 1 illustrates a first embodiment of a retaining ring for both shaft and hole according to the present invention. A retaining ring body 1 having a substantially C shape traverses with the short side being the thickness and the long side being the front and back sides. Since the inner surface has a substantially rectangular shape, the width between the inner peripheral edge and the outer peripheral edge is gradually narrowed from the intermediate portion to the left and right end portions except for the inner edge portions of the left and right end portions 2 and 3 which are concentric with the outer peripheral edge. It is formed in a non-concentric shape, and can be elastically contracted, expanded, and elastically restored by opening and closing the left and right ends 2, 3 in the circumferential direction.

【００１２】 左右両端部２，３は表面側から裏面側に貫通状の差し込み孔４をそれぞれ開口 すると共に、右端部３近くにも差し込み孔５を同様に開口している。そして、左 右端部２，３における対向状の先端部分2a,3a は、表面側から裏面側に向けて平 行状に傾斜させて形成してある。The left and right end portions 2 and 3 respectively have penetrating insertion holes 4 from the front surface side to the back surface side, and also have insertion holes 5 near the right end portion 3 in the same manner. The front end portions 2a and 3a of the left and right end portions 2 and 3 facing each other are formed so as to be inclined in a horizontal direction from the front surface side to the back surface side.

【００１３】 また、左右両端部２，３における先端部分2a,3a の間隔は狭く形成して、両端 部２，３の左右両差し込み孔４間隔を狭めてあり、着脱工具を左端部２の差し込 み孔４と右端部３近くの差し込み孔５に差し込んで穴の浅い溝部に嵌合可能まで 縮径させた際に、右端部３が左端部２表面に乗り上げて同左端部２の差し込み孔 ４に差し込み状の着脱工具先端に当接する関係に設定してある。In addition, the distance between the tip portions 2a and 3a at the left and right ends 2 and 3 is narrow, and the distance between the left and right insertion holes 4 at both ends 2 and 3 is narrow, so that the detachable tool can be attached to the left end portion 2 only. When the insertion hole 4 and the insertion hole 5 near the right end portion 3 are inserted and reduced in diameter so that they can be fitted in the shallow groove portion, the right end portion 3 rides on the surface of the left end portion 2 and the insertion hole of the left end portion 2 thereof. 4 is set so as to abut against the tip of the insertion-type detachable tool.

【００１４】 これにより、軸の溝部に対する着脱時には左右両端部２，３の差し込み孔４， ４に着脱工具を差し込んで止め輪本体１径を拡大させ、穴の溝部に対する着脱時 には左端部２の差し込み孔４と右端部３近くの差し込み孔５に着脱工具を差し込 んで止め輪本体１径を縮小させることにより、軸あるいは穴の溝部に対して迅速 に着脱できると共に、軸用、穴用のいずれにも着脱できて共用することができる 。Accordingly, when attaching / detaching to / from the groove portion of the shaft, the attaching / detaching tool is inserted into the insertion holes 4 and 4 of the left and right end portions 2 and 3 to expand the diameter of the retaining ring body 1 and the left end portion 2 is attached / detached to / from the groove portion of the hole. By inserting an attachment / detachment tool into the insertion hole 4 and the insertion hole 5 near the right end 3 to reduce the diameter of the retaining ring body 1, it can be quickly attached / detached to / from the shaft or the groove of the hole. It can be attached to and detached from any of these and can be shared.

【００１５】 そして、止め輪本体１を各差し込み孔４，５ともどもプレス成形等によって容 易に製作することができ、一つの成形金型で賄えると共に、軸用と穴用に別ける 必要性がなくなって製作・保管・管理しやすく経済的効果が大きい。Further, the retaining ring body 1 can be easily manufactured by press molding or the like with each of the insertion holes 4 and 5, and can be covered by one molding die, and there is no need to separate the shaft and hole. It is easy to manufacture, store and manage, and has a large economic effect.

【００１６】 さらに、左右両端部２，３の対向状の先端部分2a,3a を、表面側から裏面側に 向けて平行状に傾斜させて形成してあるため、止め輪本体１の縮径時に左右両端 部２，３が相互に重なり易く、穴の溝部に対する着脱作業をスムーズに行うこと ができる。Furthermore, since the opposed tip portions 2a and 3a of the left and right end portions 2 and 3 are formed to be inclined in parallel from the front surface side to the back surface side, when the retaining ring body 1 is reduced in diameter. The left and right end portions 2 and 3 are easily overlapped with each other, so that the attachment / detachment work to / from the groove portion of the hole can be smoothly performed.

【００１７】 また、穴の溝部に対する着脱に際して、止め輪本体１を縮径させた時、右端部 ３が左端部２表面側に乗り上げて同左端部２の差し込み孔４に差し込み状の着脱 工具先端に当接するため、この当接ショックによって止め輪本体１が穴の溝部に 対して着脱可能であることを確認できると共に、縮径され過ぎて止め輪本体１が 変形するようなことがなく、穴の溝部が浅くとも対応できる。In addition, when the retaining ring body 1 is contracted in diameter when attaching or detaching to / from the groove portion of the hole, the right end part 3 rides on the surface side of the left end part 2 and is inserted into the insertion hole 4 of the left end part 2 of the insertion / removal tool tip. It is confirmed that the retaining ring body 1 can be attached to and detached from the groove of the hole by this contact shock, and the retaining ring body 1 is not deformed due to excessive diameter reduction. Can be used even if the groove is shallow.

【００１８】 軸の溝部に対する着脱時に、両端部２，３の左右の差し込み孔４間隔が狭く接 近しているため、着脱工具が差し込み易く、着脱作業を迅速に行うことができる 。At the time of attachment / detachment to / from the groove portion of the shaft, since the space between the left and right insertion holes 4 of both end portions 2 and 3 is close, the attachment / detachment tool can be easily inserted and the attachment / detachment work can be performed quickly.

【００１９】 図２には本考案の軸・穴兼用止め輪の第２実施例を例示しており、構成は前記 第１実施例のものと基本的に同一であるため、共通している構成の説明を省略し て、相違する構成について説明する。FIG. 2 illustrates a second embodiment of the retaining ring for both shaft and hole of the present invention. Since the structure is basically the same as that of the first embodiment, a common structure is provided. The description will be omitted and different configurations will be described.

【００２０】 左右両端部２，３近くに差し込み孔５をそれぞれ開口してある。Insertion holes 5 are opened near the left and right ends 2 and 3, respectively.

【００２１】 これにより、前記第１実施例のものと同様の効果があり、さらに穴の溝部に対 する着脱時には、両端部２，３近くの左右差し込み孔５に着脱工具を差し込んで 、先端部分2a,3a が着脱工具先端に当接するまで大きく縮径できるため、穴の溝 部が普通の深さのものから深いものまで対応できる。As a result, there is the same effect as that of the first embodiment, and when attaching / detaching to / from the groove portion of the hole, the attachment / detachment tool is inserted into the left and right insertion holes 5 near both end portions 2 and 3, and the tip end portion is inserted. Since the diameters of 2a and 3a can be greatly reduced until they come into contact with the tip of the detachable tool, the groove of the hole can be used from normal depth to deep.

【００２２】 前記した各実施例は本考案の一例を示しているに過ぎず、他の態様にすること も任意であって、たとえば、略Ｃ形状の止め輪本体１を外周縁が内周縁と同心円 状の左右両端部２，３外縁部分を除いて、中間部分から左右両端部に向けて内周 縁との間の幅が次第に狭まった態様の非同心円状に形成してあるものであっても 良い。Each of the above-described embodiments is merely an example of the present invention, and other embodiments are also possible. For example, the retaining ring body 1 having a substantially C shape has an outer peripheral edge and an inner peripheral edge. Except for the concentric left and right end portions 2 and 3 outer edge portions, the non-concentric circle shape is formed such that the width between the middle portion and the inner peripheral edge is gradually narrowed toward the left and right end portions. Is also good.

【００２３】[0023]

【考案の効果】[Effect of device]

Ａ．請求項１により、略Ｃ形状の止め輪本体における両端部に差し込み孔を開 口すると共に、少なくとも一方の端部近くに差し込み孔を開口してあるため、軸 の溝部に対する着脱時には両端部の差し込み孔に着脱工具を差し込んで止め輪本 体径を拡大させ、穴の溝部に対する着脱時には一端部の差し込み孔と他端部近く の差し込み孔に着脱工具を差し込んで止め輪本体径を縮小させることにより、軸 あるいは穴の溝部に対して迅速に着脱できると共に、軸用、穴用のいずれにも着 脱できて共用することができる。 A. According to claim 1, since the insertion holes are opened at both ends of the substantially C-shaped snap ring body, and the insertion holes are opened near at least one end, the both ends are inserted when the shaft is attached to or detached from the groove. By inserting the attachment / detachment tool into the hole to increase the diameter of the retaining ring body, when attaching / detaching to / from the groove of the hole, the attachment / detachment tool is inserted into the insertion hole at one end and the insertion hole near the other end to reduce the diameter of the retaining ring body. It can be quickly attached to and detached from the shaft or the groove of the hole, and it can be attached to and detached from both the shaft and the hole.

【００２４】 Ｂ．同項により、止め輪本体を各差し込み孔ともどもプレス成形等によって容 易に製作することができ、一つの成形金型で賄えると共に、軸用と穴用に別ける 必要性がなくなって製作・保管・管理しやすく経済的効果が大きい。B. According to the above paragraph, the snap ring main body can be easily manufactured by press molding etc. with each insertion hole, and it can be covered by one molding die, and there is no need to separate it for the shaft and the hole, so it can be manufactured, stored, and stored. Easy to manage and great economic effect.

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

【図１】 本考案の軸・穴兼用止め輪の第１実施例を例
示しており、（Ａ）は正面図、（Ｂ）は底面図、（Ｃ）
は部分拡大底面図。FIG. 1 illustrates a first embodiment of a retaining ring for both shaft and hole of the present invention, (A) is a front view, (B) is a bottom view, and (C).
Is a partially enlarged bottom view.

【図２】 本考案の軸・穴兼用止め輪の第２実施例を例
示しており、（Ａ）は正面図、（Ｂ）は底面図。FIG. 2 illustrates a second embodiment of a retaining ring for both shaft and hole of the present invention, (A) is a front view and (B) is a bottom view.

【符号の説明】[Explanation of symbols]

１ 止め輪本体 ２ 左端部 2a 左端部の先端部分 ３ 右端部 3a 右端部の先端部分 ４，５ 差し込み孔 1 Retaining ring body 2 Left end part 2a Left end part 3 Right end part 3a Right end part 4,5 Insertion hole

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項１】 略Ｃ形状の止め輪本体における両端部に
差し込み孔を開口すると共に、少なくとも一方の端部近
くに差し込み孔を開口してなる軸・穴兼用止め輪。1. A retaining ring for both a shaft and a hole, wherein insertion holes are opened at both ends of a substantially C-shaped retaining ring body, and insertion holes are opened near at least one end.