JPH037807B2 - - Google Patents

Info

Publication number
JPH037807B2
JPH037807B2 JP57035936A JP3593682A JPH037807B2 JP H037807 B2 JPH037807 B2 JP H037807B2 JP 57035936 A JP57035936 A JP 57035936A JP 3593682 A JP3593682 A JP 3593682A JP H037807 B2 JPH037807 B2 JP H037807B2
Authority
JP
Japan
Prior art keywords
bolt
nut
clutch piece
space
rotated
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.)
Expired - Lifetime
Application number
JP57035936A
Other languages
Japanese (ja)
Other versions
JPS58156712A (en
Inventor
Noritaka Kashimura
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.)
ENPURASU KK
Original Assignee
ENPURASU 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 ENPURASU KK filed Critical ENPURASU KK
Priority to JP3593682A priority Critical patent/JPS58156712A/en
Publication of JPS58156712A publication Critical patent/JPS58156712A/en
Publication of JPH037807B2 publication Critical patent/JPH037807B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Bolts, Nuts, And Washers (AREA)
  • Adornments (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Slide Fasteners, Snap Fasteners, And Hook Fasteners (AREA)

Description

【発明の詳細な説明】 本発明は緩み止めを設けたナツトに関するもの
である。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a nut provided with a locking mechanism.

一般にボルトとナツトを用いて締付けて固定し
た場合、固定後時間を経過するにしたがつて次第
に緩みを生ずる欠点がある。そのために、この緩
みを防止するためワツシヤを介在させる等の手段
が用いられているが、ボルトとナツト以外の部品
を必要とし特に固定のための作業に余計な操作が
加わることとなり好ましくない。
In general, when bolts and nuts are used to tighten and fix, there is a drawback that they gradually loosen as time passes after fixing. For this reason, measures such as interposing washers are used to prevent this loosening, but this requires parts other than bolts and nuts, which is undesirable because it requires extra operations, especially for fixing.

本発明は以上のような事情に鑑みなされたもの
であつて、クラツチ片を設けることによつて螺合
する際にはねじが締る方向にのみ回転し得て、そ
れとは逆の方向の回転は阻止されるようにした緩
み止めを設けたナツトを提供するものである。
The present invention was made in view of the above circumstances, and by providing a clutch piece, when screwing together, the screw can rotate only in the tightening direction, and can rotate in the opposite direction. provides a nut provided with a lock that prevents loosening.

以下図示する一実施例にもとづき、本発明のナ
ツトの具体的な構造について説明する。第1図は
本発明のナツトの横断面図で、ボルトを螺合した
状態に示してある。この図において、1はナツト
で、一般のナツトと同様に例えば六角柱状体2の
中央に雌ねじ3が形成されていると共に柱状体2
内にその一部がねじ3が切欠かれていて中央空間
に通じている空間2aが複数個所(図示する実施
例の場合は2個所)設けられている。4は空間2
a内に配置されたクラツチ片で、例えばこの図に
あるように断面が橢円の柱状体をなしており、又
その一端はねじ3の切欠き3aより中央空間に突
出していて、第1図のようにボルトをねじ込んだ
時にはその先端面がボルト5のねじの部分に接す
るように構成されている。尚クラツチ片4は空間
2a内で多少動き得るように空間2aをクラツチ
片4よりも幾分大きく形成してある。
The specific structure of the nut of the present invention will be described below based on one embodiment shown in the drawings. FIG. 1 is a cross-sectional view of the nut of the present invention, shown with a bolt threaded onto it. In this figure, 1 is a nut, and like a general nut, for example, a female thread 3 is formed in the center of a hexagonal columnar body 2, and the columnar body 2 is
A plurality of spaces 2a (in the case of the illustrated embodiment, two spaces) are provided inside, in which screws 3 are partially cut out, and the spaces 2a communicate with the central space. 4 is space 2
The clutch piece is placed in the center space a, and has, for example, a columnar body with a circular cross section as shown in this figure, and one end of which protrudes into the central space from the notch 3a of the screw 3, as shown in Figure 1. When the bolt is screwed in as shown in FIG. The space 2a is formed to be somewhat larger than the clutch piece 4 so that the clutch piece 4 can move somewhat within the space 2a.

このような構造のナツト1に対してボルト5を
ねじ込んで行つた場合、即ち第1図においてボル
ト5を矢印方向に回転させて行つた場合、クラツ
チ片4は僅かに後方へ押しやられてボルト5はほ
とんど抵抗なく回転され、したがつてボルトとナ
ツトによる締付けが可能となる。これに対してボ
ルト5をナツト1より抜き取る方向に回転させた
場合、つまりボルト5を第1図において矢印と反
対方向に回転させた場合は、クラツチ片4の先端
はボルト5のねじの部分に圧着され噛み込むので
ボルトの回転は阻止される。即ちボルト5は締め
る方向には回転し得るが、緩む方向には回転する
ことができない。そのため一度締め付けたボルト
は緩むことがない。
When the bolt 5 is screwed into the nut 1 having such a structure, that is, when the bolt 5 is rotated in the direction of the arrow in FIG. can be rotated with little resistance, thus allowing tightening with bolts and nuts. On the other hand, when the bolt 5 is rotated in the direction to remove it from the nut 1, that is, when the bolt 5 is rotated in the opposite direction to the arrow in FIG. Since it is crimped and bitten, rotation of the bolt is prevented. That is, the bolt 5 can be rotated in the tightening direction, but cannot be rotated in the loosening direction. Therefore, once the bolt is tightened, it will not loosen.

第1図に示すナツト1の柱状体2に形成された
空間2aは、クラツチ片4の形状と同じ形状でこ
れより多少大きいものであつたが、例えば第2図
に示すような形状にしてもよい。つまりこのよう
な形状とすることによつてボルト5が矢印方向に
回転される時は、クラツチ片4は空隙2aのAに
示す部分へ移動することによつてボルト5は全く
抵抗なく回転する。これに対してボルト5が矢印
と反対方向に回転される時はクラツチ片4は空間
2aのBに示す面に圧着されて動き得なくなり、
したがつてクラツチ片4はボルト5にも噛み込ん
でボルトは回転しない。
The space 2a formed in the columnar body 2 of the nut 1 shown in FIG. 1 had the same shape as the clutch piece 4 and was slightly larger, but it could also be shaped as shown in FIG. good. That is, by adopting such a shape, when the bolt 5 is rotated in the direction of the arrow, the clutch piece 4 moves to the portion shown by A in the gap 2a, and the bolt 5 rotates without any resistance. On the other hand, when the bolt 5 is rotated in the direction opposite to the arrow, the clutch piece 4 is pressed against the surface shown by B of the space 2a and cannot move.
Therefore, the clutch piece 4 also gets caught in the bolt 5, and the bolt does not rotate.

尚クラツチ片は図示した構造のものであればプ
ラスチツクでも金属でもよく、ボルトを一方向の
み回転し得て、反対方向へはボルトへの噛み込み
によつてその回転を阻止するようなものであれば
いかなるものでもよい。
The clutch piece may be made of plastic or metal as long as it has the structure shown in the figure, and it may be of a type that can rotate the bolt in only one direction and prevents rotation in the opposite direction by biting into the bolt. It can be anything.

以上説明したように、本発明のナツトによれ
ば、緩み方向にはボルトが回転し得ないので、締
付けた後に緩むことは全くない。
As explained above, according to the nut of the present invention, since the bolt cannot rotate in the direction of loosening, there is no possibility of loosening after tightening.

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

第1図は本発明の実施例の横断面図、第2図は
他の実施例の横断面図である。 1……ナツト、4……クラツチ片、5……ボル
ト。
FIG. 1 is a cross-sectional view of an embodiment of the present invention, and FIG. 2 is a cross-sectional view of another embodiment. 1...nut, 4...clutch piece, 5...bolt.

Claims (1)

【特許請求の範囲】[Claims] 1 空間を有し該空間内にボルトを螺合した時に
該ボルトのねじ部に接する断面形状がほぼ楕円形
の柱状体をなすクラツチ片を上記ボルトのねじ部
に接する位置に法線に対してねじを緩める方向と
逆側にやゝ傾斜した状態で内部にゆるく嵌合配置
し、ねじを緩める方向に回転した時には前記クラ
ツチ片によつてボルトの回転が阻止されるように
したことを特徴とする緩み止めを設けたナツト。
1. A clutch piece that has a space and has a columnar shape with a substantially elliptical cross-sectional shape that contacts the threaded portion of the bolt when the bolt is screwed into the space is placed at a position that contacts the threaded portion of the bolt with respect to the normal line. The bolt is loosely fitted inside with a slight incline in the direction opposite to the direction in which the screw is loosened, and when the bolt is rotated in the direction in which the screw is loosened, rotation of the bolt is prevented by the clutch piece. A nut with a lock that prevents it from loosening.
JP3593682A 1982-03-09 1982-03-09 Nut to which locking is fitted Granted JPS58156712A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3593682A JPS58156712A (en) 1982-03-09 1982-03-09 Nut to which locking is fitted

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3593682A JPS58156712A (en) 1982-03-09 1982-03-09 Nut to which locking is fitted

Publications (2)

Publication Number Publication Date
JPS58156712A JPS58156712A (en) 1983-09-17
JPH037807B2 true JPH037807B2 (en) 1991-02-04

Family

ID=12455898

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3593682A Granted JPS58156712A (en) 1982-03-09 1982-03-09 Nut to which locking is fitted

Country Status (1)

Country Link
JP (1) JPS58156712A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0658316A (en) * 1992-08-04 1994-03-01 Yoshihiro Imai Preventive device for screw return
JP5098104B2 (en) * 2008-05-30 2012-12-12 豊丸産業株式会社 Control device for gaming machine and gaming machine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5541665B2 (en) * 1977-02-01 1980-10-25

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5836889Y2 (en) * 1978-09-11 1983-08-19 日東精工株式会社 Fasteners with locking mechanism

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5541665B2 (en) * 1977-02-01 1980-10-25

Also Published As

Publication number Publication date
JPS58156712A (en) 1983-09-17

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