JPH0718019U - Loosening prevention bolt - Google Patents
Loosening prevention boltInfo
- Publication number
- JPH0718019U JPH0718019U JP5463093U JP5463093U JPH0718019U JP H0718019 U JPH0718019 U JP H0718019U JP 5463093 U JP5463093 U JP 5463093U JP 5463093 U JP5463093 U JP 5463093U JP H0718019 U JPH0718019 U JP H0718019U
- Authority
- JP
- Japan
- Prior art keywords
- bolt
- head
- tightened
- case
- lower side
- 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
Links
Landscapes
- Bolts, Nuts, And Washers (AREA)
Abstract
(57)【要約】
【目的】従来、小さなボルトを締め付ける場合には、ボ
ルトの頭部の下辺にスプリングワッシャ等を取り付け難
く、ボルトのみの締め付けによることから、しばしばボ
ルトの弛みが生じていた。この事例として、眼鏡のフレ
ームをとめているボルトの場合は、ワッシャが取り付け
にくいため、ボルトの締め付けに弛み生じ、時にはレン
ズが外れて落ちることがあった。この欠点を補うため、
弛み止め作用をするように、ボルトの構造に改良を加え
て、安心して利用出来るよう考案したものである。
【構成】この考案はボルトの頭部下辺に切り込みを入れ
たものである。この一部切り離したボルトの頭部を下方
向（ネジ側）に曲げておけば、このボルトを締め付ける
と、曲げた部分の復元する弾力によって、弛みを防げ
る。
(57) [Abstract] [Purpose] Conventionally, when tightening a small bolt, it is difficult to attach a spring washer or the like to the lower side of the head of the bolt, and the bolt is often loosened because only the bolt is tightened. As an example of this case, in the case of a bolt that fastens the frame of the eyeglass, the washer is difficult to attach, so that the bolt is loosened when tightened, and sometimes the lens comes off and falls. To make up for this shortcoming,
The structure of the bolt has been modified to prevent it from loosening, so that it can be used with peace of mind. [Structure] This invention is one in which a notch is made in the lower side of the head of a bolt. If the head of this partly separated bolt is bent downward (screw side), when this bolt is tightened, slack can be prevented by the resilience of the bent part.
Description
【０００１】[0001]
この考案は、ボルトによる締め付けの弛み止め方法に関するものである。 The present invention relates to a method for preventing tightening with bolts from loosening.
【０００２】[0002]
従来、ボルトの頭部の下辺にスプリングワッシャ等を別途にはめて締め付 けているが、小さい精密ボルト（眼鏡等）の場合は、ワッシャを取り付け難 く、ボルトのみによっている。 Conventionally, spring washers, etc. are separately attached to the lower side of the heads of bolts and tightened, but in the case of small precision bolts (glasses etc.), it is difficult to attach washers, and only the bolts are used.
【０００３】[0003]
これには次のような欠点があった。 ボルトが小さい精密機器の場合は、ワッシャを取り付けていないため、し ばしばボルトの弛みが生じていた。 この事例として、眼鏡のレンズをはめているフレームの締め付けボルトが 弛み、時にはレンズが外れて落ちる事があった。 This had the following drawbacks. For precision instruments with small bolts, bolts were often loosened because no washers were attached. In this case, the tightening bolts on the frame that wears the lens of the glasses loosened, and sometimes the lens came off and fell.
【０００４】[0004]
課題を解決するためには、ボルト自身に弛み止めを兼ね備えさせればよい 。 ボルトの頭部の下辺（ネジ側）を、円周にそった中心線方向に切り込みを 入れ、一部切り離した頭部を下方向（ネジ側）に曲げておくことであるる。 In order to solve the problem, the bolt itself should have a lock. The bottom side (screw side) of the head of the bolt is cut in the direction of the center line along the circumference, and the part of the head that has been cut off is bent downward (screw side).
【０００５】[0005]
一部切り離したボルトの頭部の曲げた部分によって、ボルトで締め付けた 台座が弾力をもって押さえられる。 The bent portion of the head of the bolt, which is partially separated, elastically presses the pedestal tightened with the bolt.
【０００６】[0006]
本考案を図１、図２、図３に示す事例に基づいて説明する。 １はボルトのネジ部分であり、２のボルトの頭部に３の切り込みをいれ、 ４の様にネジ方向にボルトの頭部の切り離した部分を曲げる。 The present invention will be described based on the cases shown in FIGS. 1, 2 and 3. Reference numeral 1 denotes a threaded portion of the bolt. The head of the bolt of 2 is provided with the notch of 3, and the portion of the head of the bolt that is cut off is bent in the screw direction as shown in 4.
【０００７】[0007]
この考案は、実施例に示すように、ボルトの頭部の下辺（ネジ側）の部分 に切り込みを入れ、一部切り離した頭部を下方向（ネジ側）に曲げることに より、ボルトを締め付けた状態で復元する弾力を生じさせ、弛みを防げるも のである。 スプリングワッシャを付け難い小さなボルトに適している。 なお、この弛み止めボルトで締め付ける台座に凹凸をつけておくと、相乗 効果をもたらす。 This invention, as shown in the embodiment, makes a notch in the lower side (screw side) of the head of the bolt and bends the partially cut head downward (screw side) to tighten the bolt. The elastic force that restores the slack state is generated, and the slack is prevented. Suitable for small bolts where spring washers are difficult to attach. In addition, if the pedestal tightened with these loosening prevention bolts is uneven, it will have a synergistic effect.
【図１】正面図（本考案の事例の１） この図は、ボルトの頭部の下辺（ネジ側）に主として２
カ所に切り込みを入れ、下方向（ネジ側）に曲げた事例
のものである。FIG. 1 is a front view (1 of the case of the present invention). This drawing mainly shows 2 on the lower side (screw side) of the head of the bolt.
This is an example of making a notch at a location and bending it downward (screw side).
【図２】正面図（本考案の事例の２） この図は、ボルトの頭部の下辺に主として４カ所に切り
込みを入れ、凹凸をつけて下方向に曲げた事例のもので
ある。FIG. 2 is a front view (2 of the case of the present invention). This figure shows a case in which notches are mainly made at four places on the lower side of the head of the bolt, and unevenness is provided to bend the bolt downward.
【図３】正面図（本考案の事例の３） この図は、ボルトの頭部の下辺を斜めに切り込みを入れ
た事例のものである。FIG. 3 is a front view (3 of the case of the present invention). This figure shows a case where the lower side of the head of the bolt is obliquely cut.
１はボルトのネジ部分、２はボルトの頭部、３は頭部の
切り込み、４はネジ方向に曲げた一部切り離した頭部で
ある。Reference numeral 1 is a screw portion of a bolt, 2 is a head portion of the bolt, 3 is a notch of the head portion, and 4 is a head portion which is bent in the screw direction and is partially cut off.
Claims (1)
たボルト。1. A bolt having a notch on the lower side of the head of the bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5463093U JPH0718019U (en) | 1993-08-31 | 1993-08-31 | Loosening prevention bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5463093U JPH0718019U (en) | 1993-08-31 | 1993-08-31 | Loosening prevention bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0718019U true JPH0718019U (en) | 1995-03-31 |
Family
ID=12976083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5463093U Pending JPH0718019U (en) | 1993-08-31 | 1993-08-31 | Loosening prevention bolt |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0718019U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51127891U (en) * | 1975-04-12 | 1976-10-15 |
-
1993
- 1993-08-31 JP JP5463093U patent/JPH0718019U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51127891U (en) * | 1975-04-12 | 1976-10-15 |
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