JP2001221215A - Detachment prevention structure for insertion member - Google Patents

Detachment prevention structure for insertion member

Info

Publication number
JP2001221215A
JP2001221215A JP2000029288A JP2000029288A JP2001221215A JP 2001221215 A JP2001221215 A JP 2001221215A JP 2000029288 A JP2000029288 A JP 2000029288A JP 2000029288 A JP2000029288 A JP 2000029288A JP 2001221215 A JP2001221215 A JP 2001221215A
Authority
JP
Japan
Prior art keywords
insertion member
shaft
groove
flexible member
retaining structure
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
JP2000029288A
Other languages
Japanese (ja)
Inventor
Masao Saito
雅夫 斉藤
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.)
KYOUWA KK
Original Assignee
KYOUWA 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 KYOUWA KK filed Critical KYOUWA KK
Priority to JP2000029288A priority Critical patent/JP2001221215A/en
Publication of JP2001221215A publication Critical patent/JP2001221215A/en
Pending legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To provide a simple detachment prevention structure for an insertion member excellent in workability and handleability, certainly preventing detachment of a shaft body such as a nut screwed on a bolt without using an additional detachment prevention tool such as a split pin. SOLUTION: A screw shaft 8 of the bolt 7 is formed with a slit-like groove, while a flexible member 2 projecting formed with a lock part 5 is housed in the groove 1. When inserting the nut 9, a thread of the nut 9 presses the flexible member 2 to house the flexible member 2 into the groove 1. When the nut 9 is inserted in a prescribed position, the flexible member 2 gets in a free state, and the lock part 5 abuts on an end face of the nut 9 to function as the detachment prevention structure.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、軸体に挿入される
挿入部材の抜け止め構造に係り、特に、着脱が容易で確
実の抜け止めが可能な挿入部材の抜け止め構造に関す
る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a retaining structure for an insertion member to be inserted into a shaft, and more particularly, to a retaining structure for an insertion member which can be easily detached and securely retained.

【0002】[0002]

【従来の技術】図13に示すように、例えば、本体側1
2に部材13を固定する場合にボルト14及びナット1
5が一般に用いられるが、この場合、ナット15の脱落
を嫌う箇所においては抜け止めが用いられる。この抜け
止めとして一般的のものは図示のように割ピン16であ
る。この割ピン16は規格品であり、その形状,材質等
も決められており、安価で便利なものであるが、その反
面着脱、特に取り外しが極めて困難な場合が多い。特
に、発錆箇所における割ピン16の取り外しは困難であ
り、特殊の抜き工具が必要になる。更に、取り外した割
ピン16は図14に示すようにその先端が2股になった
り欠けたりし、再使用がやり難い問題点がある。また、
戸外作業、特に冬場における戸外作業時におけるボルト
14,ナット15の締め付け作業を必要とする場所で
は、この割ピン16の着脱作業は極めて作業性が悪く嫌
われている。
2. Description of the Related Art As shown in FIG.
2 and the bolt 14 and the nut 1
5 is generally used. In this case, a stopper is used at a place where the nut 15 is not likely to come off. As a typical stopper, a split pin 16 is shown as shown. The split pin 16 is a standard product, and its shape, material and the like are determined. The split pin 16 is inexpensive and convenient. In particular, it is difficult to remove the split pin 16 at a rusting point, and a special punching tool is required. Further, as shown in FIG. 14, the detached split pin 16 has a problem that its tip is bifurcated or chipped, making it difficult to reuse. Also,
In places where outdoor work is required, particularly in outdoor work in winter, where tightening of the bolts 14 and nuts 15 is required, the work of attaching and detaching the split pins 16 is extremely poor and hated.

【0003】割ピン16の替りに、図15に示すスナッ
プリング17のようなものが抜け止めとして使用される
場合も多い。このものは図16に示すように軸体18に
挿入されたリング状部材19をその位置で固定する必要
がある場合に使用されることが多い。スナップリング1
7は抜け止め部材としては効果的のものであるが、特殊
の工具がないとその着脱が難しい。また、割ピン16に
較べると高価のものになる。また、スナップリング17
は軸体18がねじ軸のようなものには一般に使用するこ
とが難しい。
In many cases, a snap ring 17 shown in FIG. 15 is used as a retaining pin instead of the split pin 16. This is often used when it is necessary to fix the ring-shaped member 19 inserted in the shaft 18 at that position as shown in FIG. Snap ring 1
7 is effective as a retaining member, but it is difficult to attach and detach it without a special tool. In addition, it is more expensive than the split pin 16. Also, the snap ring 17
In general, it is difficult to use the shaft body 18 such as a screw shaft.

【0004】また、割ピン16やスナップリング17の
ように、別体の部材を用いないで挿入部材の抜け止めを
行う簡便の抜け止め構造として図17,図18に示すも
のが従来より採用されている。このものは軸体20にピ
ン21により回動自在に支持された回動駒22を設け、
この回動駒22をピン21に対し非対称とし基端側を重
くすると共に先端側に挿入部材の抜け止めを行うための
係止部23を一体的に形成したものからなる。図17に
示すように回動駒22をピン21まわりに手動で回動さ
せた状態に挿入部材24を挿入し、挿入が終了すると回
動駒22が自然に回動し、図18に示すように係止部2
3が挿入部材24の端面に当接して挿入部材24の抜け
止めを行うものである。
FIGS. 17 and 18 show a conventional simple retaining structure for retaining an inserted member without using a separate member, such as a split pin 16 and a snap ring 17. FIG. ing. This is provided with a turning piece 22 rotatably supported by a pin 21 on a shaft body 20,
The turning piece 22 is asymmetric with respect to the pin 21, the base end side is made heavier, and a locking portion 23 for preventing the insertion member from coming off is formed integrally with the distal end side. As shown in FIG. 17, the insertion member 24 is inserted in a state where the turning piece 22 is manually turned around the pin 21. When the insertion is completed, the turning piece 22 turns naturally, and as shown in FIG. Locking part 2
Reference numeral 3 denotes an abutment on the end face of the insertion member 24 to prevent the insertion member 24 from coming off.

【0005】[0005]

【発明が解決しようとする課題】前記したように、割ピ
ン16やスナップリング17を用いた抜け止め構造は作
業性が悪く、再使用も難しい場合もあり、別体品のため
取扱性も悪い。また、図17,図18に示したものは作
業性,取扱性はよいが、軸体20の端面25と挿入部材
24の端面26との間に回動駒22の回動に必要な隙間
27等が必要となり、挿入部材24の挿入位置が不安定
となる問題点がある。また、回動駒22の回動が重力を
使用するため任意の場所に適用することはできない。
As described above, the retaining structure using the split pin 16 and the snap ring 17 is inferior in workability, and may be difficult to reuse, and is difficult to handle because it is a separate product. . 17 and 18 are good in workability and handleability, but a gap 27 required for turning the turning piece 22 between the end face 25 of the shaft 20 and the end face 26 of the insertion member 24. And the like, and the insertion position of the insertion member 24 becomes unstable. Further, since the rotation of the rotating piece 22 uses gravity, it cannot be applied to an arbitrary place.

【0006】本発明は、以上の事情に鑑みて発明された
ものであり、作業性,取扱性がよく、ねじ軸を含む各種
の軸体に適用され、確実な抜け止めができ、比較的安価
に実施できる挿入部材の抜け止め構造を提供することを
目的とする。
The present invention has been made in view of the above circumstances, has good workability and handleability, can be applied to various types of shafts including a screw shaft, can reliably prevent slipping, and is relatively inexpensive. It is an object of the present invention to provide an insertion member retaining structure that can be implemented at a time.

【0007】[0007]

【課題を解決するための手段】本発明は、以上の目的を
達成するために、軸体に挿入される挿入部材の端面に係
合しその抜け止めを行うための抜け止め構造であって、
該抜け止め構造は、前記軸体の外面に形成されるスリッ
ト状の溝と、該溝内に基端側を嵌入されると共に先端側
に自由状態において前記軸体の外面から突出する係止部
を形成し該係止部に加わる押圧力により全体が前記溝内
に収納される弾性変形可能な可撓部材とを有する挿入部
材の抜け止め構造を構造するものである。
SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a retaining structure for engaging an end face of an insertion member inserted into a shaft body to prevent the insertion member from coming off.
The retaining structure includes a slit-shaped groove formed on an outer surface of the shaft, and a locking portion having a base end inserted into the groove and protruding from the outer surface of the shaft in a free state at the distal end. And a resiliently deformable flexible member which is entirely accommodated in the groove by the pressing force applied to the locking portion.

【0008】また、前記溝が、前記軸体に単数又は複数
箇所形成されるものであり、前記複数の溝が同一形状又
は異なる形状のものからなることを特徴とする。また、
前記可撓部材は、その係止部が1箇所又は2箇所形成さ
れるものからなり、前記挿入部材の後面又は前後面に当
接して前記挿入部材の抜け止めを行うものであることを
特徴とする。
[0008] Further, one or more grooves are formed in the shaft body, and the plurality of grooves have the same shape or different shapes. Also,
The flexible member has a locking portion formed at one or two places, and abuts on a rear surface or a front and rear surface of the insertion member to prevent the insertion member from coming off. I do.

【0009】また、前記軸体がねじ軸であり、前記挿入
部材が前記ねじ軸に螺合するナット状部材であることを
特徴とし、前記軸体が軸棒からなり、前記挿入部材が前
記軸棒に挿着されるカラ状部材であることを特徴とす
る。
Further, the shaft is a screw shaft, and the insertion member is a nut-like member screwed to the screw shaft. The shaft is formed of a shaft rod, and the insertion member is the shaft. It is a hollow member inserted into a rod.

【0010】本発明の請求項1の挿入部材の抜け止め構
造によれば、軸体に挿入部材を挿入すると、軸体の外面
から突出していた係止部が挿入部材の内面により押圧さ
れ係止部は溝内に沈む。従って、挿入部材は簡単に軸体
に挿入される。挿入が終了すると抜け止めの係止部がそ
の弾性により自由状態に復帰し、係止部が挿入部材の端
面に係合、即ち、当接する。これにより、抜け止めが確
実に行われる。即ち、挿入部材の挿入動作のみで特別の
別体の抜け止めを用いることなく抜け止めが行われる。
このため作業性,取扱性の向上が図れる。
According to the first aspect of the present invention, when the insertion member is inserted into the shaft, the locking portion projecting from the outer surface of the shaft is pressed by the inner surface of the insertion member to lock. The part sinks in the groove. Therefore, the insertion member is easily inserted into the shaft. When the insertion is completed, the retaining portion of the retaining member returns to a free state due to its elasticity, and the retaining portion engages, that is, comes into contact with the end face of the insertion member. Thereby, the retaining is surely performed. That is, the retaining operation is performed only by the insertion operation of the inserting member without using a special separate retaining device.
Therefore, workability and handleability can be improved.

【0011】本発明の請求項2に記載の挿入部材の抜け
止め構造によれば、溝が複数箇所形成されることによ
り、挿入部材の抜け止めの確実化が図れると共に、複数
の溝の形状(長さ)を相異させることにより、寸法の異
なる挿入部材に対応することができる。
According to the insert member retaining structure according to the second aspect of the present invention, since the grooves are formed at a plurality of positions, the insertion members can be reliably prevented from coming off, and the shape of the plurality of grooves ( By making the lengths different, it is possible to cope with insertion members having different dimensions.

【0012】本発明の請求項3に記載の挿入部材の抜け
止め構造によれば、抜け止めの係止部を2箇所形成する
ことにより挿入部材は前後面の双方で抜け止めされ、よ
り確実な抜け止めが行われる。
According to the insertion member retaining structure of the third aspect of the present invention, by forming two retaining portions for retaining the insertion member, the insertion member is retained on both the front and rear surfaces, so that it is more reliable. A retaining is performed.

【0013】本発明の請求項4に記載の挿入部材の抜け
止め構造によれば、締め具として最も一般的なねじ軸と
これに螺合するナット状部材を用いた箇所における抜け
止め構造により広範囲な締め付け箇所における抜け止め
の着脱の容易化が図れ、作業性の大幅の向上が図れる。
According to the insertion member retaining structure according to the fourth aspect of the present invention, a more widespread retaining structure at a position using a screw shaft most commonly used as a fastener and a nut-like member screwed to the screw shaft. Attachment and detachment of the retaining member can be facilitated at a suitable fastening point, and workability can be greatly improved.

【0014】本発明の請求項5に記載の挿入部材の抜け
止め構造によれば、軸棒に挿入されるカラ状部材の抜け
止めにも適用され、適用範囲の拡大化が図れる。
According to the structure for preventing the insertion member from falling out according to the fifth aspect of the present invention, the structure is also applied to the prevention of the removal of the empty member inserted into the shaft rod, and the applicable range can be expanded.

【0015】[0015]

【発明の実施の形態】以下、本発明の挿入部材の抜け止
め構造の実施の形態を図面に基づき詳説する。図1,図
2,図4,図8は軸体としてボルトを用い、挿入部材と
してこのボルトのねじ軸に螺着されるナットを用いる場
合の実施の形態を示す。また、本実施の形態における溝
は2箇所形成されており、1つの溝は他の溝よりも軸長
方向に沿った長さが短いが、勿論、これに限定するもの
ではない。
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of an insertion member retaining structure according to an embodiment of the present invention. FIGS. 1, 2, 4 and 8 show an embodiment in which a bolt is used as a shaft body and a nut screwed to a screw shaft of the bolt is used as an insertion member. Further, two grooves are formed in the present embodiment, and one groove has a shorter length along the axial length direction than the other groove, but is not limited to this.

【0016】ボルト7のねじ軸8の適宜場所には寸法a
の溝1が形成されると共にA>aの溝1′が形成され
る。また、この溝1,1′の溝幅t(図2)は本実施の
形態では一定であるが勿論これに限定するものではな
い。なお、以下の説明の溝1についてのみ行うが、他の
溝1′等についても同様の内容のものが適用される。
At a suitable place on the screw shaft 8 of the bolt 7, a dimension a
And the groove 1 'of A> a is formed. The groove width t (FIG. 2) of the grooves 1 and 1 'is constant in the present embodiment, but is not limited to this. It should be noted that only the groove 1 described below is used, but the same contents are applied to other grooves 1 ′ and the like.

【0017】溝1内には本発明の抜け止め構造である可
撓部材2が収納される。この可撓部材2は弾性変形可能
のものからなり、例えば、図3(a),(b),(c)
に示す形状のものが採用される。この可撓部材2は、基
端側の長さa″の台板3と、この台板3に一端側を連結
して片持ち支持される長さb<a″の可撓板4と、可撓
板4の先端側に突出して形成される係止部5等とからな
り、厚みt1の板部材からなる。なお、台板3と可撓板
4との間には隙間6が形成される。以上の構造により、
係止部5を押圧すると隙間6の分だけ可撓板4の前端側
が撓む。なお、この撓わんだ状態で可撓部材2は溝1の
内に完全に収納される寸法のものからなる。
A flexible member 2 having a retaining structure of the present invention is accommodated in the groove 1. The flexible member 2 is made of an elastically deformable material, and is, for example, shown in FIGS.
The shape shown in FIG. The flexible member 2 includes a base plate 3 having a length a ″ on the base end side, a flexible plate 4 having a length b <a ″ that is connected to the base plate 3 at one end and is cantilevered, The flexible plate 4 includes a locking portion 5 and the like protruding from the distal end side of the flexible plate 4, and is formed of a plate member having a thickness t1. A gap 6 is formed between the base plate 3 and the flexible plate 4. With the above structure,
When the locking portion 5 is pressed, the front end side of the flexible plate 4 is bent by the gap 6. It should be noted that the flexible member 2 is of such a size as to be completely accommodated in the groove 1 in this bent state.

【0018】可撓部材2は、例えば、バネ材からなる弾
性変形可能なものからなり、前記の台板3の長さa″は
溝1の底面の長さaよりもやや長めに形成される。ま
た、厚みt1は溝1の溝幅tよりもやや薄めのものから
なる。以上のように可撓部材2の台板3の寸法a″が溝
1の底面の長さaよりもやや長目のため、可撓部材2を
溝1内に挿入すると図6,図7に示すように、台板3が
溝幅方向や上下方向にやや変形し、溝1内に嵌着され
る。これにより、可撓部材2は溝1内に安定保持され、
簡単には脱落しない。また、可撓部材2は図1に示すよ
うに自由状態ではねじ軸8の外面から係止部5のみが突
出した状態で収納される。
The flexible member 2 is made of, for example, an elastically deformable member made of a spring material, and the length a ″ of the base plate 3 is formed to be slightly longer than the length a of the bottom surface of the groove 1. The thickness t1 is slightly thinner than the groove width t of the groove 1. As described above, the dimension a ″ of the base plate 3 of the flexible member 2 is slightly longer than the length a of the bottom surface of the groove 1. When the flexible member 2 is inserted into the groove 1, the base plate 3 is slightly deformed in the groove width direction or the vertical direction as shown in FIGS. Thereby, the flexible member 2 is stably held in the groove 1, and
Does not fall off easily. In addition, the flexible member 2 is stored in a free state in which only the locking portion 5 protrudes from the outer surface of the screw shaft 8 in the free state, as shown in FIG.

【0019】次に、図4,図5により、本実施の形態の
挿入部材の抜け止め構造の作用を説明する。ボルト7の
ねじ軸8の溝1内には予め可撓部材2が嵌着されてい
る。このねじ軸8にナット9を螺着し締め込んで行くと
ナット9の内ねじにより可撓部材2の係止部5が押圧さ
れ、図4に示すように可撓部材2全体が溝1内に収納さ
れる。従って、ナット9の螺着を引き続き進めることが
できる。図5に示すように、ナット9の螺着が所定位置
まで進むとナット9の内ねじによる係止部5の押圧力が
解除され、可撓部材2はもとの自由状態に復帰する。こ
のため、係止部5がナット9の端面に当接し、結果とし
てナット9の抜き止めが行われる。この場合、前記した
ように可撓部材2は台板3が溝1に嵌着されているた
め、可撓部材2は溝1に固持され、以上の動作中におい
ても、且つ動作後においても脱落することはない。
Next, the operation of the insertion member retaining structure of the present embodiment will be described with reference to FIGS. The flexible member 2 is fitted in the groove 1 of the screw shaft 8 of the bolt 7 in advance. When the nut 9 is screwed into the screw shaft 8 and tightened, the locking portion 5 of the flexible member 2 is pressed by the inner screw of the nut 9, and the entire flexible member 2 is in the groove 1 as shown in FIG. Is stored in. Therefore, the screwing of the nut 9 can be continued. As shown in FIG. 5, when the screwing of the nut 9 advances to a predetermined position, the pressing force of the locking portion 5 by the internal screw of the nut 9 is released, and the flexible member 2 returns to the original free state. For this reason, the locking portion 5 comes into contact with the end face of the nut 9, and as a result, the nut 9 is prevented from being pulled out. In this case, since the base plate 3 is fitted in the groove 1 as described above, the flexible member 2 is fixed to the groove 1 and falls off during the above operation and after the operation. I will not do it.

【0020】以上の実施の形態は、軸体がボルト7のね
じ軸8の場合であるが、図8,図9は軸体が軸棒10で
あり、これに挿入部材としてカラ状部材11を挿入する
場合の実施の形態を示す。まず、軸棒10に形成された
溝1内には図3等に示した可撓部材2が嵌着されてい
る。この状態の軸棒10にカラ状部材11を挿入すると
カラ状部材11の内孔により可撓部材2の係止部5が押
圧され、可撓部材2の全体が溝1内に収納され、カラ状
部材11は所定位置まで挿入される。この状態で可撓部
材2が自由状態に復帰するように溝1及び可撓部材2の
形状を設定することによりカラ状部材11は所定の挿入
位置で抜け止めされる。なお、本実施の形態は軸体とし
て軸棒10を用いた場合について説明したが、その他の
形態の軸体に対しても同様な構造の抜け止め構造が適用
された。
In the above-described embodiment, the shaft is the screw shaft 8 of the bolt 7. FIGS. 8 and 9 show a shaft that is a shaft 10 and a hollow member 11 as an insertion member. An embodiment in the case of insertion is shown. First, the flexible member 2 shown in FIG. 3 and the like is fitted in the groove 1 formed in the shaft rod 10. When the empty member 11 is inserted into the shaft 10 in this state, the locking portion 5 of the flexible member 2 is pressed by the inner hole of the empty member 11, and the entire flexible member 2 is stored in the groove 1. The shaped member 11 is inserted to a predetermined position. By setting the shapes of the groove 1 and the flexible member 2 so that the flexible member 2 returns to the free state in this state, the empty member 11 is prevented from falling off at a predetermined insertion position. In the present embodiment, the case where the shaft rod 10 is used as the shaft body has been described. However, a similar structure of the retaining structure is applied to shaft bodies of other forms.

【0021】図10乃至図11は可撓部材に関するその
他の実施の形態の数例を示す。図10の可撓部材2aは
前後に係止部5a,5aを設けたものであり、挿入部材
の前後に係止部5a,5aを当接係合せしめて挿入部材
の抜け止めの確実性をより向上させたものである。ま
た、図11,図12の可撓部材2b,2cは一本のワイ
ヤ部材により可撓部材を形成したものであり、図11の
可撓部材2bはワイヤ部材の一部に係止部5bを設けた
ものであり、図12に示す可撓部材2cはワイヤ部材に
別体の係止部5cを固着したものからなる。図10,図
11,図12において可撓部材2aの台板3aや可撓部
材2b,2cの前記ワイヤ部材の図の下方側は溝1の底
面側で張り出した状態で嵌着され可撓部材2b,2cを
溝1内に固持するように形成される。なお、可撓部材の
形状,構造は以上のものに限定するものではない。
FIGS. 10 and 11 show several examples of other embodiments relating to the flexible member. The flexible member 2a shown in FIG. 10 is provided with locking portions 5a, 5a at the front and rear, and the locking portions 5a, 5a are brought into contact with the insertion member at the front and rear to make sure that the insertion member is more securely retained. It has been improved. The flexible members 2b and 2c in FIGS. 11 and 12 are formed by forming a flexible member with a single wire member. The flexible member 2b in FIG. The flexible member 2c shown in FIG. 12 is formed by fixing a separate locking portion 5c to a wire member. 10, 11 and 12, the lower side of the base plate 3a of the flexible member 2a and the wire members of the flexible members 2b and 2c are fitted in such a manner that they protrude from the bottom side of the groove 1 in the figure. 2b and 2c are formed so as to be held in the groove 1. The shape and structure of the flexible member are not limited to those described above.

【0022】[0022]

【発明の効果】本発明の挿入部材の抜け止め構造によれ
ば、ボルトのようなねじ軸とこれに螺着されるナットや
その他の各種軸体に挿入される挿入部材の抜け止めが確
実に行われると共に、従来の技術のように別体の抜け止
めを使用する必要がなく、安価に実施できると共に、作
業性,取扱性の向上が図れる。
According to the insert member retaining structure of the present invention, the screw member such as a bolt and the nut inserted into the screw shaft and other various shaft members can be reliably prevented from being removed. In addition to this, it is not necessary to use a separate stopper as in the prior art, so that it can be implemented at low cost, and the workability and handleability can be improved.

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

【図1】本発明の挿入部材の抜け止め構造の一実施の形
態を示すもので、軸体としてねじ軸を有するボルトを用
い、挿入部材としてナットを用いた場合の全体構造を示
す部分軸断面図。
FIG. 1 shows an embodiment of a retaining structure for an insertion member according to the present invention, in which a bolt having a screw shaft is used as a shaft body and a nut is used as an insertion member. FIG.

【図2】図1の上面図。FIG. 2 is a top view of FIG. 1;

【図3】本発明の挿入部材の抜け止め構造に使用される
可撓部材の一実施の形態を示す正面図(a)、A矢視側
面図(b)、上面図(c)。
FIGS. 3A and 3B are a front view, an A side view (b), and a top view (c) showing one embodiment of a flexible member used for the retaining structure of the insertion member of the present invention.

【図4】図1,図2に示した挿入部材の抜け止め構造の
抜け止め作用を説明するための部分軸断面図。
FIG. 4 is a partial axial sectional view for explaining a retaining function of the retaining structure of the insertion member shown in FIGS. 1 and 2;

【図5】図1,図2に示した挿入部材の抜け止め構造の
抜け止め作用を説明するための部分軸断面図。
FIG. 5 is a partial axial cross-sectional view for explaining a retaining function of the retaining structure of the insertion member shown in FIGS. 1 and 2;

【図6】可撓部材の溝内への嵌着状態を示す模式図。FIG. 6 is a schematic diagram showing a state in which a flexible member is fitted into a groove.

【図7】可撓部材の溝内への嵌着状態を示す模式図。FIG. 7 is a schematic view showing a state in which a flexible member is fitted into a groove.

【図8】軸体として軸棒を用い、挿入部材としてカラ状
部材を用いた場合の本発明の挿入部材の抜け止め構造の
実施の形態を示す部分軸断面図。
FIG. 8 is a partial axial sectional view showing an embodiment of an insertion member retaining structure according to the present invention when a shaft rod is used as a shaft body and a hollow member is used as an insertion member.

【図9】図8における可撓部材により挿入部材の抜け止
め状態を示す部分軸断面図。
FIG. 9 is a partial axial sectional view showing a state in which the insertion member is prevented from coming off by the flexible member in FIG. 8;

【図10】前後に係止部を設けた可撓部材の実施の形態
を示す正面図。
FIG. 10 is a front view showing an embodiment of a flexible member provided with locking portions at the front and rear.

【図11】ワイヤ部材を用いた可撓部材を示す正面図。FIG. 11 is a front view showing a flexible member using a wire member.

【図12】ワイヤ部材を用いると共に係止部をワイヤ部
材に固着してなる可撓部材を示す正面図。
FIG. 12 is a front view showing a flexible member using a wire member and having a locking portion fixed to the wire member.

【図13】従来の割ピンを用いた抜け止め構造を示す軸
断面図。
FIG. 13 is an axial sectional view showing a retaining structure using a conventional split pin.

【図14】図13の場合において、ねじ軸等から取り出
した割ピンの形態を示す正面図。
14 is a front view showing a form of a split pin taken out from a screw shaft or the like in the case of FIG. 13;

【図15】スナップリングの平面図。FIG. 15 is a plan view of a snap ring.

【図16】スナップリングを抜け止めとした従来の抜け
止め構造を示す部分軸断面図。
FIG. 16 is a partial axial sectional view showing a conventional retaining structure in which a snap ring is retained.

【図17】ワンタッチ式の回動駒を用いた従来の抜け止
め構造の模式図。
FIG. 17 is a schematic view of a conventional retaining structure using a one-touch rotating piece.

【図18】図8の抜け止め構造の作用を説明する模式
図。
FIG. 18 is a schematic view illustrating the operation of the retaining structure of FIG. 8;

【符号の説明】[Explanation of symbols]

1 溝 1′ 溝 2 可撓部材 2a 可撓部材 2b 可撓部材 2c 可撓部材 3 台板 4 可撓板 5 係止部 5a 係止部 5b 係止部 5c 係止部 6 隙間 7 ボルト 8 ねじ 9 ナット 10 軸棒 11 カラ状部材 Reference Signs List 1 groove 1 'groove 2 flexible member 2a flexible member 2b flexible member 2c flexible member 3 base plate 4 flexible plate 5 locking portion 5a locking portion 5b locking portion 5c locking portion 6 gap 7 bolt 8 screw 9 Nut 10 Shaft bar 11 Empty member

Claims (5)

【特許請求の範囲】[Claims] 【請求項1】 軸体に挿入される挿入部材の端面に係合
しその抜け止めを行うための抜け止め構造であって、該
抜け止め構造は、前記軸体の外面に形成されるスリット
状の溝と、該溝内に基端側を嵌入されると共に先端側に
自由状態において前記軸体の外面から突出する係止部を
形成し該係止部に加わる押圧力により全体が前記溝内に
収納される弾性変形可能な可撓部材とを有することを特
徴とする挿入部材の抜け止め構造。
1. A retaining structure for engaging an end face of an insertion member inserted into a shaft body to prevent the insertion member from coming off, the retaining structure comprising a slit formed on an outer surface of the shaft body. And a locking portion that is fitted on the base end side into the groove and protrudes from the outer surface of the shaft body in the free state on the distal end side, and is entirely formed in the groove by pressing force applied to the locking portion. And an elastically deformable flexible member housed in the insertion member.
【請求項2】 前記溝が、前記軸体に単数又は複数箇所
形成されるものであり、前記複数の溝が同一形状又は異
なる形状のものからなる請求項1に記載の挿入部材の抜
け止め構造。
2. The retaining structure for an insertion member according to claim 1, wherein one or more of the grooves are formed in the shaft body, and the plurality of grooves have the same shape or different shapes. .
【請求項3】 前記可撓部材は、その係止部が1箇所又
は2箇所形成されるものからなり、前記挿入部材の後面
又は前後面に当接して前記挿入部材の抜け止めを行うも
のであることを特徴とする請求項1又は2に記載の挿入
部材の抜け止め構造。
3. The flexible member has a locking portion formed at one or two places, and abuts on a rear surface or a front and rear surface of the insertion member to prevent the insertion member from falling off. The retaining structure for an insertion member according to claim 1, wherein the structure is provided.
【請求項4】 前記軸体がねじ軸であり、前記挿入部材
が前記ねじ軸に螺合するナット状部材である請求項1に
記載の挿入部材の抜け止め構造。
4. The retaining structure for an insertion member according to claim 1, wherein the shaft body is a screw shaft, and the insertion member is a nut-like member screwed to the screw shaft.
【請求項5】 前記軸体が軸棒からなり、前記挿入部材
が前記軸棒に挿着されるカラ状部材である請求項1に記
載の挿入部材の抜け止め構造。
5. The retaining structure for an insertion member according to claim 1, wherein the shaft body is formed of a shaft bar, and the insertion member is a hollow member inserted into the shaft bar.
JP2000029288A 2000-02-07 2000-02-07 Detachment prevention structure for insertion member Pending JP2001221215A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000029288A JP2001221215A (en) 2000-02-07 2000-02-07 Detachment prevention structure for insertion member

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000029288A JP2001221215A (en) 2000-02-07 2000-02-07 Detachment prevention structure for insertion member

Publications (1)

Publication Number Publication Date
JP2001221215A true JP2001221215A (en) 2001-08-17

Family

ID=18554570

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000029288A Pending JP2001221215A (en) 2000-02-07 2000-02-07 Detachment prevention structure for insertion member

Country Status (1)

Country Link
JP (1) JP2001221215A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008075296A (en) * 2006-09-20 2008-04-03 Chugoku Electric Power Co Inc:The Scaffolding bolt unit
CN106667069A (en) * 2016-12-07 2017-05-17 重庆佐恩家具有限公司 Desk with tool box
CN109026969A (en) * 2018-05-25 2018-12-18 廖建飞 A kind of screw retention connection assembly

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008075296A (en) * 2006-09-20 2008-04-03 Chugoku Electric Power Co Inc:The Scaffolding bolt unit
CN106667069A (en) * 2016-12-07 2017-05-17 重庆佐恩家具有限公司 Desk with tool box
CN109026969A (en) * 2018-05-25 2018-12-18 廖建飞 A kind of screw retention connection assembly

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