JPH06249223A - Bolt with built-in locking action - Google Patents

Bolt with built-in locking action

Info

Publication number
JPH06249223A
JPH06249223A JP3602993A JP3602993A JPH06249223A JP H06249223 A JPH06249223 A JP H06249223A JP 3602993 A JP3602993 A JP 3602993A JP 3602993 A JP3602993 A JP 3602993A JP H06249223 A JPH06249223 A JP H06249223A
Authority
JP
Japan
Prior art keywords
nut
bolt
screw
shank
locking action
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
JP3602993A
Other languages
Japanese (ja)
Inventor
Hiroyasu Fujieda
広康 藤枝
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP3602993A priority Critical patent/JPH06249223A/en
Publication of JPH06249223A publication Critical patent/JPH06249223A/en
Pending legal-status Critical Current

Links

Landscapes

  • Bolts, Nuts, And Washers (AREA)

Abstract

PURPOSE:To bear locking action by using the under head and the incomplete screw of a CONSTITUTION:A bolt which consists of a hexagon head H and an under head fillet shank S has a screw at the end of the shank S. A nut N is placed into the screw. A male screw B has the under head fillet shunk screwed to the right end of a female screw A, because the shank S is bigger in size than the nut N there is no space between the screws of the bolt and the nut, and a screw thread is deformed at the nut. In this way, larger friction occurs between the bolt and the nut to prevent looseness.

Description

【発明の詳細な説明】 この発明はボルトとナットのネジ相互間には多少のスキ
マがあるもので、その結果ネジは自然に緩むことがある
ため、その弊害をなくすために考えられた従来のネジ
は、緩みを防止するためナツトを２個使用したり。溝付
ナツトを使用したり、緩み防止用塗布剤をネジ山に塗り
付け足りしていたこの方法ではナツトを作るのに、コス
トがかさんだり一本ごとに塗布剤を塗り付けたり、手間
がかかり、大変な労力を必要としました。この不便をな
くしコストを低く押さえるために、ボルトの首下部を通
常よりも太くし、そこに外形を大きくしたネジを切るこ
とにより、ネジを締めた場合ボルトとナツトのネジ相互
間のスキマを無くし、首下部がナツトに食い込むことに
よりボルトとナツトの相互間摩擦を大きくしてゆるみを
防止するものであるDETAILED DESCRIPTION OF THE INVENTION The present invention has some clearance between screws of a bolt and a nut, and as a result, the screws may loosen spontaneously. Use two nuts to prevent the screws from loosening. This method used grooved nuts and applied a loosening prevention coating agent to the threads, but this method requires a lot of time and effort to apply nuts to make nuts. It took a lot of effort. In order to eliminate this inconvenience and keep costs low, the lower part of the bolt is made thicker than usual, and a screw with an enlarged outline is cut there to eliminate the gap between the bolt and nut nut when tightening the screw. , The lower neck bites into the nut to increase the friction between the bolt and nut and prevent loosening.

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

【図１】図１はボルトとナツトである。ボルトとは図の
如く６角けいのあたまＨと丸い首下シヤンクＳとからな
り、シヤンクの端にはネジが切ってある。そしてこのネ
ジにはナツトＮがはめられているFIG. 1 is a bolt and nut. The bolt is composed of a hexagonal head H and a round neck S as shown in the figure, and the end of the shank is threaded. And the nut N is fitted to this screw.

【図２】図２はボルトとナツトのかみ合い断面を示して
おりＡはメネジでありＢはオネジである、Ａの右端では
Ｂの首下シヤンク部のネジが食い込んでおりナツトより
もシヤンクの太さが太いためにボルトとナツトのネジ相
互間のスキマが無くなり ナツト部ではネジ山が変形し
ているFIG. 2 shows a cross section of engagement between a bolt and a nut, where A is a female screw and B is a male screw. At the right end of A, the screw at the under neck shank portion of B is biting and the thickness of the shank is larger than that of the nut. Since the thickness is thick, there is no gap between the bolt and nut screws, and the threads are deformed at the nut part.

【符合の説明】[Explanation of sign]

Ｈ 頭 Ｓ シヤンク 首下 Ｎ ナツト Ａ メネジ Ｂ オネジ H Head S Shank Neck N Nut A Female thread B Male thread

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】ボルトの首下部、不完全ネジ部を利用する
ことにより 緩み止めの作用を担わせる1. A function of preventing loosening is provided by utilizing a lower part of a neck of a bolt and an incomplete thread part.
JP3602993A 1993-01-13 1993-01-13 Bolt with built-in locking action Pending JPH06249223A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3602993A JPH06249223A (en) 1993-01-13 1993-01-13 Bolt with built-in locking action

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3602993A JPH06249223A (en) 1993-01-13 1993-01-13 Bolt with built-in locking action

Publications (1)

Publication Number Publication Date
JPH06249223A true JPH06249223A (en) 1994-09-06

Family

ID=12458295

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3602993A Pending JPH06249223A (en) 1993-01-13 1993-01-13 Bolt with built-in locking action

Country Status (1)

Country Link
JP (1) JPH06249223A (en)

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