JP3583616B2 - A cover for preventing accidents to be inserted into the square head or nut of the bolt - Google Patents

A cover for preventing accidents to be inserted into the square head or nut of the bolt Download PDF

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JP3583616B2
JP3583616B2 JP13394698A JP13394698A JP3583616B2 JP 3583616 B2 JP3583616 B2 JP 3583616B2 JP 13394698 A JP13394698 A JP 13394698A JP 13394698 A JP13394698 A JP 13394698A JP 3583616 B2 JP3583616 B2 JP 3583616B2
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Prior art keywords
cover
nut
bolt
locking member
square head
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JP13394698A
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JPH11325043A (en
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昇 片岡
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株式会社石亀工業
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Description

【0001】
【発明の属する技術分野】
本発明は、ボルトの角頭部又はナットに套嵌される悪事防止用のカバーに関する。
【0002】
【従来の技術】
従来、鉄塔、建造物、建築物、構造物等の各種の建物、又は各種交通機関等に使用されているボルト及びナットの取外し、妨害等の如く、犯罪に直結する事件(悪事)が頻発している。しかし、この悪事防止に役立つボルト及びナットの商品(製品)及び文献は少ないことから、その改良が望まれている。
【0003】
尚、前記悪事防止の一般的な方策としては、このボルト及びナットを溶接で固定する手段(溶接固定)がある。しかし、溶接固定の場合は、溶接機器を要することから、例えば、場所的な制限、条件的な制限、均一な精度が図れない等の点において問題を残す処である。従って、溶接固定の問題を解消し、悪事・弛緩防止に役立つ、ボルト及びナットの構造、及び構造的に確立された技術が要望されている。
【0004】
上記の要望に鑑み、その改良を技術文献でみると、次のような文献がある。(1)特開平9-137820号のボルトの封印装置及びその使用方法であり、ボルトに噛合した第2の締付ナットの外凹溝と、封印キャップの内凹溝の間にCリングを設け、このCリングを内外凹溝に差し渡し設けることにより、当該封印キャップの脱抜防止を図る。(2)特開平7-63211号の緩み止めシールナットであり、めねじを有する金属ナットの螺軸部に、前記めねじの内径とほぼ同径のねじなし袋穴を設けた樹脂部材を套嵌し、この樹脂部材には金属ナットの前端に位置する環状突起を形成するとともに前方へ拡がる皿形のシール部を設けた構成であり、ナットの防錆効果と、このナットの弛緩防止を図る。(3)実開平5-96531号の緩み止めナットであり、ナットに弾性補強板を埋設し、当該ナットの螺入で前記弾性補強板の先端をボルトの螺軸部に圧接する構成であり、弛緩防止を図る。
【0005】
【発明が解決しようとする課題】
前記文献(1)〜(3)は、在来のロックナットに弛緩防止手段を設けるので、ナットの弛緩防止に役立つ構成となっている。このように単一の弛緩防止手段であるが故に、弛緩防止には役立つ反面、悪事に対しては必ずしも有効でないと思われる。
【0006】
以下、理由を述べる。:理由1は、文献(1)では、締付ナットと封印キャップが同調することから、当該封印キャップを強制的に回すと、同時に締付ナットも脱抜される(取外される)虞れがある。また文献(2)、(3)では、ナットそのものが露呈されていることから、スパナー等の締付具により簡易に脱抜される虞れがある。:理由2は、文献(1)では封印キャップの形状が締付ナットの形状になり、悪事に利用される虞があること、又は文献(2)、(3)は、前述と同様な虞れがある。
【0007】
【課題を解決するための手段】
請求項1の発明は、カバーをボルトの角頭部又はナットに套嵌した後、このカバーを回転することにより、確実かつ瞬時にロックできることと、一度ロックすると外れないボルトの角頭部又はナットに套嵌される悪事防止用のカバーを提供する。
【0008】
請求項1は、ボルトの角頭部又はナットに套嵌される悪事防止用のカバーであって、
このカバーを、ボルトの角頭部又はナットの座面に設けられる座金、板等の係止部材と、この係止部材に喰込み係止されるロック部材と、このロック部材をボルトの軸方向に揺動するカバー本体で構成してなり、
このカバーのカバー本体と前記ボルトの角頭部又はナットの隙間を狭める当該カバーの回転操作により、前記ロック部材を揺動し、このロック部材の爪片を前記係止部材に喰込み係止することを特徴とする。
【0009】
請求項2の発明は、ボルトの角頭部又はナットに套嵌される悪事防止用のカバーであって、このカバーをボルトの角頭部又はナットに套嵌した後、このカバーを回転することにより、確実かつ瞬時にロックできるロック部材を提供する。
【0010】
請求項2は、ロック部材を、数個の爪片と、この爪片を連結するリングで構成する。
【0011】
請求項3の発明は、ボルトの角頭部又はナットに套嵌される悪事防止用のカバーであって、係止部材に確実に喰込み係止できるロック部材を提供する。
【0012】
請求項3は、係止部材とベース又は連結部材の間にスペーサを介在する構成である。
【0013】
請求項4の発明は、ボルトの角頭部又はナットに套嵌される悪事防止用のカバーであって、このカバーをボルトの角頭部又はナットに套嵌した後、このカバーを回転することにより、確実かつ瞬時にロックできる係止部材を提供する。
【0014】
請求項4は、係止部材を、スプリング座金で構成する。
【0015】
【発明の実施の形態】
図1、図2の如く、鉄塔、構造物等のベースに連結部材を添接し、このベース及び連結部材に係止部材及びスペーサを介在してボルトを貫通し、このボルトの螺軸部に係止部材及びスペーサを介在してナットを螺入して、当該ベース及び連結部材を緊締した状態において、カバーのロック部材の数個の爪片(各爪片とする)を、カバー本体とボルトの角頭部又はナットで形成される大きい隙間(カバー本体とボルトの角頭部の頭谷面又はカバー本体とナットの谷面)に挿入するようにして、当該カバーを角頭部又はナットに套嵌する。この操作により、各爪片は大きい隙間に挿入されており、かつ各爪片の爪側は係止部材の内側に位置する(爪側はスペーサの周面に位置する。)が、この爪側と係止部材とはロックされておらず、所謂、ロック部材は開放された状態である。
【0016】
以上のロック部材が開放された状態から、図3、図4の如く、カバーを何れかの方向に回転すると、各爪片は頭谷面又は谷面から頭角面又は角面に向かって移動される。この移動に伴って、前記の大きい隙間から、小さい隙間へと変わるとともに、各爪片の尻側が押し上げられる。この各爪片の爪側が押し下げられる。即ち、各爪片が揺動する。この各爪片の揺動により、当該爪側が係止部材の内側に係止(喰込み係止)される。所謂、カバーがボルトの角頭部・係止部材又はナット・係止部材に套嵌されるとともに、カバーの各爪片がボルトの係止部材又はナットの係止部材に係止される(即ち、カバーがボルトの角頭部・係止部材又はナット・係止部材に套嵌・係止される)。
【0017】
このような操作及び手順により、カバーがボルトの角頭部・係止部材又はナット・係止部材に套嵌・係止されると、カバーをいくら回しても、空回りするのみで、前記の喰込み係止の関係は解除できない。従って、螺着されているボルト又はナットは外れない。即ち、悪事防止に役立つ構成である。
【0018】
【実施例】
以下、本発明の一実施例を図面を参照として説明する。
【0019】
1はボルトAの角頭部A1又はナットB「尚、ナットBに使用した場合の例は、後述する。」に套嵌される悪事防止用のカバーで、このカバー1は、前記角頭部A1の座面A2に当接される座金2(係止部材に相当する。)と、この座金2とベースXとの間に介在され、かつこの座金2とベースX間に空間を形成するスペーサ3と、前記座金2に喰込み係止される数個の爪片411及びこの各爪片411を連結するリング412とでなるロック部材4と、前記座金2及びロック部材4が設けられる前記ボルトAの角頭部A1に套嵌されるカバー本体5で構成される。このカバー1は、前述の如く、ボルトAの角頭部A1に套嵌されるとともに、所定角度回転することにより、座金2にロック部材4が係止される構造である。
【0020】
尚、前記ナットBに套嵌される悪事防止用のカバーでは、このカバー1は、ナットBの座面B2に当接される座金2と、この座金2と連結部材Yとの間に介在され、かつこの座金2と連結部材Y間に空間を形成するスペーサ3aと、前記座金2に喰込み係止される数個の爪片411及びこの各爪片411を連結するリング412とでなるロック部材4と、前記座金2及びロック部材4が設けられる前記ナットBに套嵌されるカバー本体5で構成される。このカバー1は、前述の如く、ナットBに套嵌されるとともに、所定角度回転することにより、座金2にロック部材4が係止される構造である。
【0021】
【0022】
前記ロック部材4を構成する各爪片411は、ボルトAの角頭部A1の頭谷面A3から頭角面A4に向かって移動される。この移動に伴って、前記の大きい隙間Hから、小さい隙間H1へと変わるとともに、各爪片411の尻側411bが押し上げられる。この各爪片411の爪側411aが押し下げられる。即ち、各爪片411が揺動する。この各爪片411の揺動により、当該爪側411aが座金2の内側に係止される。カバー1がボルトAの角頭部A1・座金2に套嵌されるとともに、カバー1の各爪片411がボルトAの座金2に係止される。また前記ロック部材4を構成する各爪片411は、ナットBの谷面B3から角面B4に向かって移動される。この移動に伴って、前記の大きい隙間Hから、小さい隙間H1へと変わるとともに、各爪片411の尻側411bが押し上げられる。この各爪片411の爪側411aが押し下げられる。即ち、各爪片411が揺動する。この各爪片411の揺動により、当該爪側411aが座金2の内側に係止される。カバー1がナットB・座金2に套嵌されるとともに、カバー1の各爪片411がナットBの座金2に係止される。
【0023】
【発明の効果】
請求項1の発明は、悪事防止用のカバーは、ボルトの角頭部又はナットの座面に設けられる係止部材と、この係止部材に喰込み係止するロック部材と、このロック部材をボルトの軸方向に揺動するカバー本体でなり、このカバーの回転操作により、ロック部材を揺動し、このロック部材の爪片を係止部材に喰込み係止することを特徴とする。従って、カバーをボルトの角頭部又はナットに套嵌した後、このカバーを回転することにより、この悪事防止用のカバーは、ボルト又はナットに確実かつ瞬時にロックされる。また一度ロックすると外れない悪事防止用のカバーを提供できる。
【0024】
請求項2の発明は、ロック部材を、数個の爪片と、この爪片を連結するリングで構成する。従って、悪事防止用のカバーをボルトの角頭部又はナットに套嵌した後、このカバーを回転することにより、この悪事防止用のカバーは、各爪片を介してボルト又はナットに確実かつ瞬時にロックされる。また一度ロックすると外れない悪事防止用のカバーを提供できる。
【0025】
請求項3の発明は、座金とベース又は連結部材の間にスペーサを介在する構成である。従って、悪事防止用のカバーをボルトの角頭部又はナットに套嵌した後、このカバーを回転することにより、この悪事防止用のカバーは、スペーサ及び各爪片を介してボルト又はナットに確実かつ瞬時に係止できる。また座金に確実に喰込み係止できる悪事防止用のカバーを提供できる。
【0026】
請求項4の発明は、座金を、スプリング座金で構成する。従って、ボルトの角頭部又はナットに套嵌される悪事防止用のカバーであって、このカバーをボルトの角頭部又はナットに套嵌した後、このカバーを回転することにより、この悪事防止用のカバーは、各爪片とスプリング座金との係止を介してボルト又はナットに確実かつ瞬時に係止できる。また座金の弾性及び確実な係止を利用した悪事防止用のカバーを提供できる。
【図面の簡単な説明】
【図1】使用状態を示し、かつ係止部材が開放された状態を示す断面図である。
【図2】図1のイ−イの横断面図である。
【図3】図1のロ−ロの横断面図である。
【図4】図1の他の例のイ−イの横断面図である。
【図5】使用状態を示し、かつ係止部材がロックされた状態を示す断面図である。
【図6】図5の横断面図である。
【図7】鉄塔に使用した状態の要部縮尺模式図である。
【符号の説明】
1 カバー
2 座金
3 スペーサ
3a スペーサ
4 ロック部材
411 爪片
411a 爪側
411b 尻側
412 リング
5 カバー本体
A ボルト
A1 角頭部
A2 座面
A3 頭谷面
A4 頭角面
B ナット
B2 座面
B3 谷面
B4 角面
H 大きい隙間
H1 小さい隙間
X ベース
Y 連結部材
[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cover for preventing accidents that is fitted over a square head or a nut of a bolt.
[0002]
[Prior art]
Conventionally, there are frequent incidents (bad things) directly related to crime, such as removal and obstruction of bolts and nuts used in various buildings such as steel towers, buildings, buildings, structures, etc., or various transportation systems. ing. However, there are few products (products) and literatures on bolts and nuts that are useful for preventing such wrongdoing, and thus improvements are desired.
[0003]
In addition, as a general measure for preventing the wrongs, there is a means for fixing the bolt and the nut by welding (weld fixing). However, in the case of welding and fixing, since welding equipment is required, there is a problem in that, for example, locational limitations, conditional limitations, and uniform accuracy cannot be achieved. Therefore, there is a need for a bolt and nut structure and a structurally established technology that can solve the problem of welding fixation and help prevent wrongdoing and loosening.
[0004]
In view of the above-mentioned demands, if the improvement is viewed in the technical literature, there are the following literatures. (1) A bolt sealing device and a method of using the same disclosed in Japanese Patent Application Laid-Open No. Hei 9-137820, wherein a C-ring is provided between an outer concave groove of a second tightening nut engaged with the bolt and an inner concave groove of a sealing cap. By disposing the C ring in the inner and outer concave grooves, the sealing cap is prevented from coming off. (2) A seal nut for preventing loosening described in Japanese Patent Application Laid-Open No. 7-63211, wherein a resin member having a screwless blind hole having a diameter substantially equal to the inner diameter of the female screw is provided on a screw shaft of a metal nut having a female screw. The resin member has a configuration in which an annular protrusion located at the front end of the metal nut is formed, and a dish-shaped seal portion is provided that expands forward, so that the nut can be prevented from rusting and the nut can be prevented from loosening. . (3) The locking nut of Japanese Utility Model No. 5-96531, in which an elastic reinforcing plate is embedded in the nut, and the tip of the elastic reinforcing plate is pressed against the screw shaft of the bolt by screwing in the nut, Prevent relaxation.
[0005]
[Problems to be solved by the invention]
The above-mentioned documents (1) to (3) have a configuration useful for preventing the nut from loosening because the conventional lock nut is provided with a slack preventing means. As described above, since it is a single loosening prevention means, it is useful for preventing loosening, but it is not necessarily effective against wrongdoing.
[0006]
Hereinafter, the reason will be described. : Reason 1 is that, in Document (1), since the locking nut and the sealing cap are synchronized, when the sealing cap is forcibly turned, the tightening nut may be simultaneously removed (removed). There is. Further, in the literatures (2) and (3), since the nut itself is exposed, there is a possibility that the nut may be easily removed with a fastener such as a spanner. : Reason 2 is that the shape of the sealing cap becomes the shape of the tightening nut in the document (1), and there is a possibility that it will be used for malicious purposes, or the documents (2) and (3) may be the same as those described above. There is.
[0007]
[Means for Solving the Problems]
The invention according to claim 1 is that the cover can be securely and instantly locked by rotating the cover after the cover is fitted over the corner or nut of the bolt, and the corner or nut of the bolt which does not come off once locked. Provided is a cover for preventing wrongdoing, which is inserted into the cover.
[0008]
Claim 1 is a cover for preventing accidents that is fitted over the square head or nut of the bolt,
The cover is provided with a locking member such as a washer or a plate provided on the square head of the bolt or the bearing surface of the nut, a locking member biting and locking the locking member, and the locking member in the axial direction of the bolt. It consists of a cover body that swings
By rotating the cover to narrow the gap between the cover main body of the cover and the corner of the bolt or the nut, the lock member is swung, and the claw of the lock member is engaged with the locking member and locked. It is characterized by the following.
[0009]
The invention according to claim 2 is a cover for preventing accidents that is fitted over the square head or nut of the bolt, and after the cover is fitted over the square head or nut of the bolt, the cover is rotated. Accordingly, a lock member that can be reliably and instantly locked is provided.
[0010]
According to a second aspect of the present invention, the lock member includes a plurality of claw pieces and a ring connecting the claw pieces .
[0011]
A third aspect of the present invention provides a lock member that is a cover for preventing accidents fitted over a square head or a nut of a bolt, and that can reliably bite and lock the locking member.
[0012]
Claim 3 is a configuration in which a spacer is interposed between the locking member and the base or the connecting member.
[0013]
The invention according to claim 4 is a cover for preventing accidents to be fitted over the square head or nut of the bolt, and after the cover is fitted over the square head or nut of the bolt, the cover is rotated. Accordingly, a locking member that can be securely and instantly locked is provided.
[0014]
According to a fourth aspect, the locking member is constituted by a spring washer.
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
As shown in FIGS. 1 and 2, a connecting member is attached to a base of a steel tower, a structure, or the like, and a bolt is penetrated through a locking member and a spacer between the base and the connecting member. In a state where the nut is screwed in through the stop member and the spacer, and the base and the connecting member are tightened, several claw pieces (each claw piece) of the lock member of the cover are connected to the cover body and the bolt. The cover is inserted into the corner head or the nut by inserting the cover into a large gap formed by the corner head or the nut (the valley surface of the cover body and the corner of the bolt or the valley surface of the cover body and the nut). Fit. By this operation, each claw piece is inserted into the large gap, and the claw side of each claw piece is located inside the locking member (the claw side is located on the peripheral surface of the spacer). The locking member is not locked, and the so-called locking member is open.
[0016]
When the cover is rotated in any direction as shown in FIGS. 3 and 4 from a state where the lock member is released, each claw piece is moved from the trough surface or the trough surface toward the head angle surface or the angle surface. You. Along with this movement, the gap changes from the large gap to the small gap, and the buttocks of each claw piece are pushed up. The nail side of each nail piece is pushed down. That is, each claw piece swings. Due to the swing of each claw piece, the claw side is locked (bite-locked) inside the locking member. The so-called cover is fitted over the square head / locking member or nut / locking member of the bolt, and each claw piece of the cover is locked by the locking member of the bolt or nut. The cover is fitted and locked to the square head of the bolt and the locking member or the nut and the locking member).
[0017]
With such an operation and procedure, when the cover is fitted and locked to the square head / locking member or the nut / locking member of the bolt, the cover is only idled, no matter how much the cover is turned, and the above-mentioned bite is obtained. The lock-in relationship cannot be released. Therefore, the bolt or nut which is screwed is not removed. That is, the configuration is useful for preventing wrongdoing.
[0018]
【Example】
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[0019]
Numeral 1 denotes a corner head A1 of the bolt A or a nut B. An example in which the nut B is used for the nut B will be described later. A washer 2 (corresponding to a locking member) that is in contact with a bearing surface A2 of A1, and a spacer that is interposed between the washer 2 and the base X and that forms a space between the washer 2 and the base X. 3, a lock member 4 composed of several pawls 411 bitingly engaged with the washer 2 and a ring 412 connecting the pawls 411, and the bolt provided with the washer 2 and the lock member 4. A is composed of a cover main body 5 that is fitted over the square head A1 of A. As described above, the cover 1 has a structure in which the lock member 4 is engaged with the washer 2 by being fitted over the square head A1 of the bolt A and rotating by a predetermined angle.
[0020]
In the case of a cover for preventing accidents that is fitted over the nut B, the cover 1 is interposed between the washer 2 that is in contact with the bearing surface B2 of the nut B and the washer 2 and the connecting member Y. And a lock comprising a spacer 3a forming a space between the washer 2 and the connecting member Y, a plurality of claw pieces 411 biting into the washer 2 and a ring 412 connecting the respective claw pieces 411. It comprises a member 4 and a cover main body 5 which is fitted over the nut B on which the washer 2 and the lock member 4 are provided. As described above, the cover 1 has a structure in which the lock member 4 is locked to the washer 2 by being fitted over the nut B and rotating by a predetermined angle.
[0021]
[0022]
Each of the claw pieces 411 constituting the lock member 4 is moved from the head valley surface A3 of the square head A1 of the bolt A toward the head corner surface A4. Along with this movement, the gap G changes from the large gap H to the small gap H1, and the tail side 411b of each claw piece 411 is pushed up. The nail side 411a of each nail piece 411 is pushed down. That is, each claw piece 411 swings. The swing of each of the claw pieces 411 locks the claw side 411 a inside the washer 2. The cover 1 is fitted over the square head A1 and the washer 2 of the bolt A, and the claws 411 of the cover 1 are locked to the washer 2 of the bolt A. Each claw piece 411 constituting the lock member 4 is moved from the valley surface B3 of the nut B toward the corner surface B4. Along with this movement, the gap G changes from the large gap H to the small gap H1, and the tail side 411b of each claw piece 411 is pushed up. The nail side 411a of each nail piece 411 is pushed down. That is, each claw piece 411 swings. The swing of each of the claw pieces 411 locks the claw side 411 a inside the washer 2. The cover 1 is fitted over the nut B and the washer 2, and the claws 411 of the cover 1 are engaged with the washer 2 of the nut B.
[0023]
【The invention's effect】
According to the first aspect of the present invention, an evil prevention cover includes a locking member provided on a square head of a bolt or a seat surface of a nut, a locking member that bites into and locks the locking member, and a locking member. The cover body swings in the axial direction of the bolt, and the rotation of the cover swings the lock member, and the claw of the lock member is engaged with the engagement member to be engaged . Therefore, by rotating the cover after the cover is fitted to the corner of the bolt or the nut, the cover for preventing accidents is securely and instantly locked to the bolt or the nut. Also, it is possible to provide a cover for preventing wrongdoing that does not come off once locked.
[0024]
According to a second aspect of the present invention, the lock member includes a plurality of claw pieces and a ring connecting the claw pieces . Therefore, by inserting the cover for preventing wrongdoing into the square head or nut of the bolt and then rotating the cover, the cover for preventing wrongdoing can be securely and instantly attached to the bolt or nut via each claw piece. Locked to. Also, it is possible to provide a cover for preventing wrongdoing that does not come off once locked.
[0025]
The invention according to claim 3 is a configuration in which a spacer is interposed between the washer and the base or the connecting member. Therefore, by inserting the cover for preventing wrongdoing into the square head or nut of the bolt and then rotating the cover, the cover for preventing wrongdoing is securely attached to the bolt or nut via the spacer and each claw piece. And it can be locked instantly. In addition, it is possible to provide an evil prevention cover capable of securely engaging and locking the washer.
[0026]
According to a fourth aspect of the present invention, the washer is constituted by a spring washer. Therefore, a cover for preventing an accident inserted into the square head or the nut of the bolt. The cover is rotated after inserting the cover into the square head or the nut of the bolt to prevent the accident. Cover can be securely and instantly locked to a bolt or a nut via locking between each claw piece and a spring washer. In addition, it is possible to provide a cover for preventing accidents utilizing the elasticity and reliable locking of the washer.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a use state and a state where a locking member is opened.
FIG. 2 is a cross-sectional view taken along line II of FIG.
FIG. 3 is a cross-sectional view of the roll of FIG. 1;
FIG. 4 is a cross-sectional view of another example of FIG. 1;
FIG. 5 is a cross-sectional view illustrating a use state and a state where a locking member is locked.
FIG. 6 is a cross-sectional view of FIG.
FIG. 7 is a schematic scale diagram of a main part in a state used for a steel tower.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Cover 2 Washer 3 Spacer 3a Spacer 4 Lock member 411 Nail piece 411a Nail side 411b Butt side 412 ring 5 Cover body A Bolt A1 Square head A2 Seat A3 Head valley A4 Head valley B Nut B2 Seat B3 Valley B4 Corner H Large gap H1 Small gap X Base Y Connecting member

Claims (4)

ボルトの角頭部又はナットに套嵌される悪事防止用のカバーであって、
このカバーを、ボルトの角頭部又はナットの座面に設けられる座金、板等の係止部材と、この係止部材に喰込み係止されるロック部材と、このロック部材をボルトの軸方向に揺動するカバー本体で構成してなり、
このカバーのカバー本体と前記ボルトの角頭部又はナットの隙間を狭める当該カバーの回転操作により、前記ロック部材を揺動し、このロック部材の爪片を前記係止部材に喰込み係止することを特徴とするボルトの角頭部又はナットに套嵌される悪事防止用のカバー。
It is a cover for preventing accidents to be inserted into the square head of the bolt or the nut,
The cover is provided with a locking member such as a washer or a plate provided on the square head of the bolt or the bearing surface of the nut, a locking member biting and locking the locking member, and the locking member in the axial direction of the bolt. It consists of a cover body that swings
By rotating the cover to narrow the gap between the cover main body of the cover and the corner of the bolt or the nut, the lock member is swung, and the claw of the lock member is engaged with the locking member and locked. A cover for preventing an accident inserted into a square head or a nut of a bolt.
上記ロック部材を、数個の爪片と、この爪片を連結するリングで構成した請求項1に記載のボルトの角頭部又はナットに套嵌される悪事防止用のカバー。2. The cover for preventing an accident inserted into a square head or a nut of a bolt according to claim 1, wherein the lock member is constituted by several claw pieces and a ring connecting the claw pieces . 上記係止部材とベース又は連結部材の間にスペーサを介在する構成とした請求項1に記載のボルトの角頭部又はナットに套嵌される悪事防止用のカバー。2. The cover for preventing an accident inserted into a square head or a nut of the bolt according to claim 1, wherein a spacer is interposed between the locking member and the base or the connecting member. 上記係止部材を、スプリング座金で構成した請求項1に記載のボルトの角頭部又はナットに套嵌される悪事防止用のカバー。2. The cover for preventing a wrong fit of the bolt head or the nut according to claim 1, wherein the locking member is constituted by a spring washer.
JP13394698A 1998-05-15 1998-05-15 A cover for preventing accidents to be inserted into the square head or nut of the bolt Expired - Fee Related JP3583616B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13394698A JP3583616B2 (en) 1998-05-15 1998-05-15 A cover for preventing accidents to be inserted into the square head or nut of the bolt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13394698A JP3583616B2 (en) 1998-05-15 1998-05-15 A cover for preventing accidents to be inserted into the square head or nut of the bolt

Publications (2)

Publication Number Publication Date
JPH11325043A JPH11325043A (en) 1999-11-26
JP3583616B2 true JP3583616B2 (en) 2004-11-04

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018168716A1 (en) * 2017-03-17 2018-09-20 株式会社Ihi Rod assembly and supercharger

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018168716A1 (en) * 2017-03-17 2018-09-20 株式会社Ihi Rod assembly and supercharger
US11566534B2 (en) 2017-03-17 2023-01-31 Ihi Corporation Rod assembly and turbocharger

Also Published As

Publication number Publication date
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