JPH09189315A - Cotter pin - Google Patents

Cotter pin

Info

Publication number
JPH09189315A
JPH09189315A JP1818996A JP1818996A JPH09189315A JP H09189315 A JPH09189315 A JP H09189315A JP 1818996 A JP1818996 A JP 1818996A JP 1818996 A JP1818996 A JP 1818996A JP H09189315 A JPH09189315 A JP H09189315A
Authority
JP
Japan
Prior art keywords
pin
protruding rod
cotter
cotter pin
nut
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
JP1818996A
Other languages
Japanese (ja)
Inventor
Moriyasu Harada
守尉 原田
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.)
Asahi Tec Corp
Original Assignee
Asahi Tec Corp
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 Asahi Tec Corp filed Critical Asahi Tec Corp
Priority to JP1818996A priority Critical patent/JPH09189315A/en
Publication of JPH09189315A publication Critical patent/JPH09189315A/en
Pending legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To easily provide a cotter pin of a desired diameter. SOLUTION: It is a cotter pin (a) constituted of a pin part 1 having a head part 2 on one end side in the shaft center direction and a nut part 4 installed on the other end side in the shaft center direction, a projected rod part 3 extending in the same direction as the shaft center direction of the pin part 1 from the other end of the pin part 1 is provided on the pin part 1, a bent wire 3a which is in parallel with the shaft center direction of the projected rod on its head end side and consisting of a flat surface bent on the side of the pin part 1 is provided on the projected rod part 3, and a through hole 4a to which the projected rod part 3 is inserted is provided on the nut part 4.

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】本発明はコッタピンに係り、
特に、コッタピンの軸心方向外側に対して力が作用して
も対処できるものに関する。
TECHNICAL FIELD The present invention relates to a cotter pin,
In particular, the present invention relates to what can be dealt with even when a force is applied to the outside of the cotter pin in the axial direction.

【0002】[0002]

【従来の技術】従来、例えば、がいし装置の連結用に用
いられるコッタピンにおいて、コッタピンの軸心方向側
の外力を考慮する必要ない場合は、コッタピンの頭部と
反対側のピン端部に割りピンを装着して抜け止めがなさ
れる。しかし、コッタピンの軸心方向側の外力を考慮し
なければならない場合は、ピン端部に雄ねじを形成し、
その雄ねじにナットを螺着するとともに、その螺着した
ナットの抜け止め防止用に割りピンが挿入される、いわ
ゆるコッタボルトが用いられる。
2. Description of the Related Art Conventionally, for example, in a cotter pin used for connecting an insulator device, when it is not necessary to consider the external force on the axial center side of the cotter pin, a split pin is provided on the pin end opposite to the head of the cotter pin. Is attached to prevent slipping out. However, if it is necessary to consider the external force on the axial center side of the cotter pin, form a male screw at the pin end,
A so-called cotter bolt is used in which a nut is screwed to the male screw and a split pin is inserted to prevent the screwed nut from coming off.

【0003】[0003]

【発明が解決しようとする課題】ところで、上記従来の
コッタボルトのサイズは、JIS規格によりM16(直
径16mmのボルト。以下、同じ),M20,M22等
のように所定の間隔を保って規格化されているので、例
えば、設計値でM17で十分である場合でも、M20の
コッタボルトを使用しなければならず、ボルトそのもの
が過剰品質となるとともに連結金具本体の孔径が大きく
なり、結果的に製品のコスト高を招く欠点があった。
By the way, the size of the conventional cotter bolt is standardized according to the JIS standard such as M16 (a bolt having a diameter of 16 mm; the same applies hereinafter), M20, M22, etc., with a predetermined interval. Therefore, for example, even if the design value of M17 is sufficient, the M20 cotter bolt must be used, resulting in excessive quality of the bolt itself and an increase in the hole diameter of the connecting fitting body, resulting in There was a drawback that resulted in high costs.

【0004】そこで、本発明は、上記欠点を解決するた
めになされたものであって、その目的は、コッタピンの
軸心方向側の外力に耐えることができるとともに、任意
の直径のコッタピンを簡単に製造することのできるコッ
タピンを提供することにある。
Therefore, the present invention has been made to solve the above-mentioned drawbacks, and an object thereof is to be able to withstand an external force on the axial direction side of the cotter pin and to easily use a cotter pin having an arbitrary diameter. It is to provide a cotter pin that can be manufactured.

【0005】[0005]

【課題を解決するための手段】本発明に係るコッタピン
は、上記目的を達成するために、軸心方向の一端側に頭
部を有するピン部と、その軸心方向の他端側に装着され
るナット部とからなるコッタピンであって、前記ピン部
に、そのピン部の他端からそのピン部の軸心方向と同方
向に伸びる突出棒部を設けるとともに、その突出棒部
に、先端側においてその突出棒の軸心方向と平行し、か
つ、そのピン部側において屈曲する偏平面からなる屈曲
条を設け、前記ナット部に、前記突出棒部が挿入される
貫通孔を設けたことを特徴としている。また、前記屈曲
条は、突出棒部の直径方向に2条設けられていることを
特徴としている。そして、前記ナット部が前記突出棒部
に挿入されて回転されたときに、その突出棒部に設けら
れている割りピン孔と、ナット部に設けられている割り
ピン孔とが対向するように設けられ、それら割りピン孔
に割りピンが装着されることを特徴としている。
In order to achieve the above object, a cotter pin according to the present invention is mounted on a pin portion having a head on one end side in the axial direction and the other end side in the axial direction. A cotter pin consisting of a nut portion, and the pin portion is provided with a protruding rod portion extending from the other end of the pin portion in the same direction as the axial direction of the pin portion, and the protruding rod portion has a tip end side. In the above, a bent line formed of a flat surface parallel to the axial direction of the protruding rod and bent on the pin portion side is provided, and a through hole into which the protruding rod portion is inserted is provided in the nut portion. It has a feature. Further, the bending line is characterized in that two lines are provided in the diameter direction of the protruding rod portion. Then, when the nut portion is inserted into the protruding rod portion and rotated, the split pin hole provided in the protruding rod portion and the split pin hole provided in the nut portion face each other. The cotter pins are provided, and cotter pins are attached to the cotter pin holes.

【0006】[0006]

【発明の実施の形態】以下、本発明の実施の形態を図面
に基づいて説明する。図1は、一実施の形態に係るコッ
タピンの正面図であって、そのコッタピンaは、長軸か
らなるピン部1と、そのピン部1の軸心方向の一端側に
設けられた頭部2と、その軸心方向の他端側に設けられ
た突出棒部3とから構成されている。
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view of a cotter pin according to an embodiment, in which a cotter pin a includes a pin portion 1 having a long axis and a head portion 2 provided on one end side in the axial direction of the pin portion 1. And a protruding rod portion 3 provided on the other end side in the axial direction thereof.

【0007】ピン部1の長さは、接続部材イ,ロを接続
した状態で突出棒部3が接続部材(図1の例では接続部
材ロ)から突出するように決められている。また、この
ピン部1の直径は、所望の直径に、すなわち、図1の接
続部材イ,ロを接続するために必要な強度を過不足なく
得られるように、任意に設定することができる。
The length of the pin portion 1 is determined so that the projecting rod portion 3 projects from the connecting member (the connecting member B in the example of FIG. 1) in a state where the connecting members a and b are connected. Further, the diameter of the pin portion 1 can be arbitrarily set to a desired diameter, that is, to obtain the strength required for connecting the connecting members a and b of FIG.

【0008】頭部2の形状は、ピン部1が接続部材ロか
ら外れないように、かつ、ピン部1の軸心方向外側に加
わる力を十分に保持できるように決められている。
The shape of the head portion 2 is determined so that the pin portion 1 does not come off from the connecting member (b) and that the force applied to the outer side in the axial direction of the pin portion 1 can be sufficiently retained.

【0009】突出棒部3及びナット部4の詳細は、図2
に示されていて、このうち、図2(a)には、突出棒部
が示されている。
Details of the protruding rod portion 3 and the nut portion 4 are shown in FIG.
In FIG. 2A, the protruding rod portion is shown.

【0010】突出棒部3は、先端(頭部2の設けられて
いる先端と反対側の先端)から、そのピン部1の軸心方
向外側に伸びる円柱からなり、その円柱の外側に2条の
屈曲条3a,3bが形成されている。これら偏平条3
a,3bは、偏平面からなり、突出棒3の直径方向に対
向して2条設けられていて、先端側は突出棒部3の軸心
方向と平行に、かつピン部1側は90°屈曲するように
形成されている。つまり、突出棒部3には、リード角が
90°の2条ねじが設けられている。また、この突出部
3のピン部1側には、割りピン孔3cが設けられてい
る。この突出棒部3及び屈曲条3a,3bの形状は、ピ
ン部1の軸心方向外側に加わる力をナット部4で支持し
たときに十分に耐えられるように決められている。
The protruding rod portion 3 is formed of a cylinder extending from the tip (the tip opposite to the tip on which the head 2 is provided) to the axially outer side of the pin portion 1, and two rods are provided outside the cylinder. Bent lines 3a and 3b are formed. These flat strips 3
a and 3b are composed of flat planes, and are provided in two rows facing each other in the diametrical direction of the projecting rod 3, the tip side being parallel to the axial direction of the projecting rod section 3 and the pin section 1 side being 90 °. It is formed to bend. That is, the protruding rod portion 3 is provided with a double thread screw having a lead angle of 90 °. A split pin hole 3c is provided on the pin portion 1 side of the protruding portion 3. The shapes of the protruding rod portion 3 and the bent strips 3a and 3b are determined so that the force applied to the axially outer side of the pin portion 1 can be sufficiently endured by the nut portion 4.

【0011】図2(b)に示されるように、ナット部4
には、上記突出棒部3が屈曲条3a,3bに規制されな
がら挿入できるように形成された貫通孔4aが設けられ
ている。そして、このナット部4には、ナット部4が突
出棒部3に挿入されてその突出棒部3に対して90°回
転したときに、その突出棒部3に設けられている割りピ
ン孔3cと対応する位置に割りピン孔4bが設けられて
いる。したがって、両割りピン孔3c,4b間に、図1
に示されるように割りピンPが装着されると、突出棒部
3bに対するナット部4の回動を阻止することができ
る。
As shown in FIG. 2B, the nut portion 4
Is provided with a through hole 4a formed so that the protruding rod portion 3 can be inserted while being regulated by the bent strips 3a and 3b. Then, in the nut portion 4, when the nut portion 4 is inserted into the protruding rod portion 3 and rotated by 90 ° with respect to the protruding rod portion 3, the split pin hole 3c provided in the protruding rod portion 3 is formed. A split pin hole 4b is provided at a position corresponding to. Therefore, between the split pin holes 3c and 4b, as shown in FIG.
When the split pin P is mounted as shown in FIG. 5, rotation of the nut portion 4 with respect to the protruding rod portion 3b can be prevented.

【0012】以上のように、本実施の形態に係るコッタ
ピンaは、頭部2と反対側のピン部1の端部に、従来の
ように雄ねじを形成する必要がないので、所望の直径の
コッタピンを容易に得ることができる。
As described above, the cotter pin a according to the present embodiment does not need to be formed with a male screw at the end of the pin portion 1 on the side opposite to the head 2 as in the prior art, and therefore has a desired diameter. The cotter pin can be easily obtained.

【0013】しかも、突出棒部3の形状は、90°屈曲
する屈曲条3a,3bを有する簡単な形状からなるの
で、容易に鍛造等により作ることができる。
Moreover, since the projecting rod portion 3 has a simple shape having the bent strips 3a and 3b bent at 90 °, it can be easily manufactured by forging or the like.

【0014】さらに、ナット部4は、突出棒部3に挿入
して90°回転させるだけで足りるので、コッタピンa
の装着作業を容易にすることが可能となる。
Further, since it is sufficient to insert the nut portion 4 into the protruding rod portion 3 and rotate it by 90 °, the cotter pin a
It becomes possible to facilitate the mounting work.

【0015】なお、上述の例では、屈曲条は2条とした
が1条とすることもできる。しかし、上述の例のように
2条とすると、ピン部1の軸心方向外側に加わる力をナ
ット部4で効果的に保持することができる。
In the above example, the number of bending lines is two, but it is also possible to have one. However, if the number of threads is two as in the above example, the force applied to the axially outer side of the pin portion 1 can be effectively held by the nut portion 4.

【0016】[0016]

【発明の効果】本発明に係るコッタピンは、ピン部の突
出棒部に、先端側においてその突出棒の軸心方向と平行
し、かつ、そのピン部側において屈曲する偏平面からな
る屈曲条を設け、ナット部に、前記突出棒部が挿入され
る貫通孔を設けたので、従来のように雄ねじを必要とし
ないので所望の直径のコッタピンを容易に得ることがで
きる。しかも、突出棒部の屈曲する屈曲条は簡単な形状
なので、鍛造等により容易に作ることができる。また、
ナット部は、突出棒部に挿入しながら回転させるだけで
足りるので、コッタピンの装着作業を容易にすることが
可能となる。また、屈曲条を、突出棒部の直径方向に2
条設けたときは、ピン部の軸心方向外側に加わる力をナ
ット部で効果的に保持することができる。さらに、ナッ
ト部が突出棒部に挿入されて回転されたときに、その突
出棒部に設けられている割りピン孔と、ナット部に設け
られている割りピン孔とが対向するように設けられ、そ
れら割りピン孔に割りピンが装着されるようにしたとき
は、ナット部の回動を効果的に阻止することができる。
In the cotter pin according to the present invention, the protruding rod portion of the pin portion is provided with a bending strip which is parallel to the axial direction of the protruding rod at the tip end side and which is formed of a flat surface that bends at the pin portion side. Since the through hole for inserting the protruding rod portion is provided in the nut portion, a cotter pin having a desired diameter can be easily obtained because a male screw is not required unlike the conventional case. Moreover, since the bent bar of the protruding rod portion has a simple shape, it can be easily manufactured by forging or the like. Also,
Since it is sufficient to rotate the nut portion while inserting it into the protruding rod portion, it is possible to facilitate the work of mounting the cotter pin. In addition, bend the ridge 2 in the diametrical direction of the protruding bar.
When the strip is provided, the force applied to the axially outer side of the pin portion can be effectively held by the nut portion. Further, when the nut portion is inserted into the protruding rod portion and rotated, the split pin hole provided in the protruding rod portion and the split pin hole provided in the nut portion are provided so as to face each other. When the split pins are mounted in the split pin holes, the rotation of the nut portion can be effectively prevented.

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

【図1】本発明の一実施の形態に係るコッタピンの正面
図である。
FIG. 1 is a front view of a cotter pin according to an embodiment of the present invention.

【図2】(a)は突出棒部の斜視図、(b)はナット部
の斜視図である。
2A is a perspective view of a protruding rod portion, and FIG. 2B is a perspective view of a nut portion.

【符号の説明】[Explanation of symbols]

a コッタピン P 割りピン イ,ロ 接続部材 1 ピン部 2 端部 3 突出棒部 3a,3b 屈曲条 3c 割りピン孔 4 ナット部 4a 貫通孔 4b 割りピン部 a Cotta pin P Split pin Y, B Connecting member 1 Pin part 2 End part 3 Protruding rod part 3a, 3b Bending strip 3c Split pin hole 4 Nut part 4a Through hole 4b Split pin part

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 軸心方向の一端側に頭部を有するピン部
と、その軸心方向の他端側に装着されるナット部とから
なるコッタピンであって、 前記ピン部に、そのピン部の他端からそのピン部の軸心
方向と同方向に伸びる突出棒部を設けるとともに、その
突出棒部に、先端側においてその突出棒の軸心方向と平
行し、かつ、そのピン部側において屈曲する偏平面から
なる屈曲条を設け、 前記ナット部に、前記突出棒部が挿入される貫通孔を設
けた、 ことを特徴とするコッタピン。
1. A cotter pin comprising a pin portion having a head portion on one end side in the axial direction and a nut portion mounted on the other end side in the axial direction, wherein the pin portion is provided on the pin portion. Is provided with a protruding rod portion extending from the other end in the same direction as the axial direction of the pin portion, and the protruding rod portion is parallel to the axial center direction of the protruding rod at the tip side, and at the pin portion side. A cotter pin, characterized in that a bent strip formed of a bent flat surface is provided, and a through hole into which the protruding rod portion is inserted is provided in the nut portion.
【請求項2】 屈曲条は、突出棒部の直径方向に2条設
けられていることを特徴とする請求項1記載のコッタピ
ン。
2. The cotter pin according to claim 1, wherein the bending strip is provided with two strips in a diameter direction of the protruding rod portion.
【請求項3】 ナット部が突出棒部に挿入されて回転さ
れたときに、その突出棒部に設けられている割りピン孔
と、ナット部に設けられている割りピン孔とが対向する
ように設けられ、それら割りピン孔に割りピンが装着さ
れることを特徴とする請求項1又は2記載のコッタピ
ン。
3. When the nut portion is inserted into the protruding rod portion and rotated, the split pin hole provided in the protruding rod portion and the split pin hole provided in the nut portion face each other. The cotter pin according to claim 1 or 2, wherein the cotter pin is provided on the cotter pin and the cotter pin is mounted in the cotter pin holes.
JP1818996A 1996-01-08 1996-01-08 Cotter pin Pending JPH09189315A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1818996A JPH09189315A (en) 1996-01-08 1996-01-08 Cotter pin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1818996A JPH09189315A (en) 1996-01-08 1996-01-08 Cotter pin

Publications (1)

Publication Number Publication Date
JPH09189315A true JPH09189315A (en) 1997-07-22

Family

ID=11964681

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1818996A Pending JPH09189315A (en) 1996-01-08 1996-01-08 Cotter pin

Country Status (1)

Country Link
JP (1) JPH09189315A (en)

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