JP2009204153A - Screw not loosened even by strong vibration - Google Patents

Screw not loosened even by strong vibration Download PDF

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JP2009204153A
JP2009204153A JP2008084751A JP2008084751A JP2009204153A JP 2009204153 A JP2009204153 A JP 2009204153A JP 2008084751 A JP2008084751 A JP 2008084751A JP 2008084751 A JP2008084751 A JP 2008084751A JP 2009204153 A JP2009204153 A JP 2009204153A
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bolt
nut
thread
screw thread
loosened
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Toshiyuki Kuramori
俊之 倉守
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a bolt and a nut (screw) inexpensively manufacturable by a conventional simple machining technology capable of using specifications of sizes and the like of conventional bolts and nuts as they are, and not loosened by even strong vibration. <P>SOLUTION: This nut 1 has a clockwise (or counterclockwise) screw thread 2, and a screw thread 3 in a direction opposite to its direction both of which are fastened by rotating a bolt 6 and a bolt 9. After a workpiece 4 or the like is fastened with the nut 1 and the bolt 6, the bolt 6 is fastened with the bolt 9. When the nut 1 rotates to be loosened, since the rotating direction of the screw thread of the bolt 6 is opposite to that of the bolt 9, the nut 1 is not loosened because rotating forces of them are negated with each other. When the bolt 6 is about to be loosened, and the bolt 9 is intended to be rotated in the same direction, the bolt 9 rotates along the screw thread 3 of the nut 1 and thereby fastens the bolt 6, and as a result, the bolt 6 is fastened and cannot rotate. Unevenness 8 is irregularly formed on side surfaces of heads of the bolt 6 and the bolt 9 contacting with each other in order to increase frictional resistance. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、ボルトに締め付けたナットが緩む時は、ナットは回転して緩みます。
ナットの内側に大と小の２つの円形の溝を掘り、その部分に右まわりと左回りのネジ山をつける。そのナットに差し込むボルト２本に右回りと左回りのネジ山をつけることによってナットは回転することはできなくなる。次に、２本のボルトが、ナットから緩もうとすると右回りのボルトは左回りに、左回りのボルトは右回りに回転を始めようとするが、ボルトの頭部分が接触しているため、お互いに回転運動が打ち消し合いボルトも動かなくなるという、振動にも強い緩まないネジに関するものです。In the present invention, when a nut tightened on a bolt is loosened, the nut is rotated and loosened.
Drill two large and small circular grooves inside the nut, and attach clockwise and counterclockwise threads to that part. By attaching clockwise and counterclockwise threads to the two bolts inserted into the nut, the nut cannot be rotated. Next, when the two bolts try to loosen from the nut, the clockwise bolt tries to rotate counterclockwise, and the counterclockwise bolt tries to rotate clockwise, but the bolt head is in contact. , It is related to screws that do not loosen against vibrations, such that the rotational movements cancel each other and the bolts also move.

従来のボルトとナットは強い力で締め付けたあと、強い振動を受けた場合、その締め付けた強い力が、その反動として、ネジの原理からして当然その反発力が同じ力でナットを緩ませようと働き、僅かなきっかけでナットは緩み始めていた。ナットを緩まなくさせるために、スプリングワッシャーや菊ワッシヤーをボルトとナットの間に入れて緩まないようにする。これは、期待したほど、効果は無かった。そのほか、接着剤でボルトとナットを接着する、ナットを別の固定板等で固定し回らなくする、ボルトとナットに穴をあけ、緩み止めとしてピンを挿入しボルトとナットを固定し、回らなくする等の工夫がされていた。
これらは、いずれの方法も、製造工程又は組立工程が多くなり、加工等の複雑さが伴いコストアップとなっていた。If a conventional bolt and nut are tightened with a strong force and then subjected to strong vibrations, the strong force tightened will cause the nut to loosen with the same repulsive force due to the principle of the screw. The nut started to loosen with a slight trigger. To prevent the nut from loosening, place a spring washer or chrysanthemum washer between the bolt and nut to prevent it from coming loose. This was not as effective as expected. In addition, the bolt and nut are bonded with an adhesive, the nut is fixed with another fixing plate, etc., is not turned around, a hole is made in the bolt and nut, a pin is inserted as a lock to fix the bolt and nut, and the nut is not turned. The idea of doing was done.
In any of these methods, the manufacturing process or the assembly process is increased, and the cost is increased due to the complexity of processing and the like.

本発明は、従来の工作技術をそのまま活用し、簡単に製造ができること。又、今までのボルトやナットのサイズ、ピッチ等の規格を利用すること等を考え継続的な振動にも緩まないボルトとナット（ネジ）を実現するものです。The present invention can be easily manufactured by utilizing conventional machining techniques as they are. In addition, the bolts and nuts (screws) that do not loosen even with continuous vibration are realized in consideration of the use of standards such as conventional bolt and nut sizes and pitches.

振動でも緩まないナットとボルト（ネジ）は、図１に示すように、ナット１にはボルト６とボルト９を回転して締めこむことができる内側のナット部分の右回り（又は左回り）のネジ山２とネジ山２とは違う反対回りのネジ山３を備えている。
ボルト６の外形部分には、ネジ山２と同じ回りのネジ山５をつけ、ボルト９の外形部分には、ネジ山３と同じ回りのネジ山７をつけている。
又、ボルト６とボルト９の接触する頭の側面部分は摩擦抵抗を大きくするために、不規則に凹凸８をつけている。
ナット１の内側のナット部分の右回り（又は左回り）のネジ山２と同じ方向のネジ山５を付けたボルト６で工作物等４を挟んで、締めつける。
次に、ボルト６の上からボルト６とは違う反対回りのネジ山７をつけたボルト９をナット１のネジ山３に入れて締めつける。
ナット１が緩もうとすると、ボルト６に対しての緩むための回転方向とボルト９に対しての緩むための回転方向が全く違う反対方向の回転方向となるため、お互いに回転する力が打ち消し合いナット１は緩むことができないのである。
ボルト６が緩むときの回転方向とボルト９が緩むときの回転方向は、ネジ山５とネジ山７が常に反対方向のため、工作物をボルト６とナット１で締め付けた後、振動等でボルト６が緩もうと回転した場合、その動きは、ボルト９に伝えられ、ボルト９を同じ方向に回転させようとすると、ボルト９は、ナット１のネジ山３にそって回転するため、緩むのではなく、ボルト６を締め付けることになる。結果として、ボルト６は締め付けられて、緩むための回転ができなくなってしまう。
つまり、強い振動等を受けたボルト６はナット１のネジ山２に沿って回転し緩むというボルト６の性質とナット１の内径部分にもう一つ、ネジ山２とは違う反対回りの内側のネジ山３をつくりネジ山３に沿って回転して緩むボルト９の性質を利用して、ボルト６の回転とボルト９の回転がお互いに反対回りのため回転する力が打ち消し合い、ボルト６とボルト９は緩まないのである。As shown in FIG. 1, the nuts and bolts (screws) that are not loosened by vibration are clockwise (or counterclockwise) of the inner nut portion that can be tightened by rotating the bolts 6 and 9 to the nut 1. The screw thread 2 and the screw thread 3 opposite to the screw thread 2 are provided.
A screw thread 5 around the same thread as the screw thread 2 is attached to the outer part of the bolt 6, and a screw thread 7 around the same screw thread 3 is attached to the outer part of the bolt 9.
Further, the side surface portion of the head where the bolt 6 and the bolt 9 contact is irregularly provided with irregularities 8 in order to increase the frictional resistance.
The workpiece 4 or the like is clamped with a bolt 6 having a screw thread 5 in the same direction as the screw thread 2 clockwise (or counterclockwise) of the nut portion inside the nut 1 and tightened.
Next, a bolt 9 having a screw thread 7 opposite to the bolt 6 is inserted into the screw thread 3 of the nut 1 and tightened from above the bolt 6.
When the nut 1 tries to loosen, the rotational direction for loosening with respect to the bolt 6 and the rotational direction for loosening with respect to the bolt 9 are completely different from each other. The mating nut 1 cannot be loosened.
The direction of rotation when the bolt 6 is loosened and the direction of rotation when the bolt 9 is loosened are that the screw thread 5 and the screw thread 7 are always in opposite directions. When the bolt 6 rotates to loosen, the movement is transmitted to the bolt 9. When the bolt 9 is rotated in the same direction, the bolt 9 rotates along the thread 3 of the nut 1, so that the bolt 9 loosens. Instead, the bolt 6 is tightened. As a result, the bolt 6 is tightened and cannot be rotated for loosening.
In other words, the bolt 6 that has received strong vibration or the like rotates and loosens along the thread 2 of the nut 1 and the inner diameter part of the nut 1 is different from the thread 2 inside. Utilizing the property of the bolt 9 that creates the screw thread 3 and rotates and loosens along the screw thread 3, the rotation force of the bolt 6 and the rotation of the bolt 9 are opposite to each other. The bolt 9 does not loosen.

従来は、ナットを緩まなくするため、強い力で締めていた。そのため、締める力が強すぎると、ネジ山を壊していた。又、イ．緩まなくするために、接着剤をボルトとナットにつけ固めたり、ナットを別の固定板等で固定し動かなくしたり、ボルトとナットに穴をあけ、ピンを挿入し緩まなくしたりしていた。ロ．簡単な方法としては、スプリングワッシャやナイロン入りナット等で緩み防止を図っていた。イの方法は、いづれも、組立て作業工程と部品が別途かかりコストアップになっていた。ロの方法は、完全にはナットの緩みは防げなかった。
本発明は、従来のボルトの規格サイズを変更することなく、ナット１の内側に、反対回りの２種類のネジ山２とネジ山３をつける。そのナット１にボルト６を差し込み回転させ工作物４を締めつける。次に、ボルト６の上からボルト６とは違う反対回りのネジ山７をつけたボルト９をナット１のネジ山３に入れて締めつける。
ナット１が緩もうとすると、ボルト６に対しての緩むための回転方向とボルト９に対しての緩むための回転方向が全く違う反対方向の回転方向となるため、お互いに回転する力が打ち消し合いナット１は緩むことができないのである。
ボルト６が緩むときの回転方向とボルト９が緩むときの回転方向は、ネジ山５とネジ山７が常に反対方向のため、工作物をボルト６とナット１で締め付けた後、振動等でボルト６が緩もうと回転した場合、その動きは、ボルト９に伝えられ、ボルト９を同じ方向に回転させようとすると、ボルト９は、ナット１のネジ山３にそって回転するため、緩むのではなく、ボルト６を締め付けることになる。結果として、ボルト６は締め付けられて、緩むための回転ができなくなってしまう。
従来の強い力だけで締めているナットでは、強い、連続した振動では、僅かなきっかけでナットは緩み始めることもあった。本発明は、緩むことを前提において、ナット１の回転、ボルト６とボルト９の回転がお互いに反対回りのため回転する力が打ち消し合う作用を利用したものである。
本発明の効果としては、強い力でしめる作業では、ネジ山を壊すギリギリのところで止める、熟練度は必要がなくなる。通常の力で誰でも簡単に締めることができる。特に、振動が連続、又は断続的に起こる個所の工程では、ナット１の回転はボルト６とボルト９によって止まり、ボルト６の回転はボルト９によって止まり、緩むことが無いため、産業上、おおいに活用される。従来のボルトの長さ、大きさ等をそのまま継承するため、従来のボルトとナット（ネジ）を部品として、製品を製造している場合でも、生産工程を変更することなく、本発明のボルトとナット（ネジ）をそのまま活用することができる。Conventionally, the nut is tightened with a strong force so as not to loosen. Therefore, if the tightening force was too strong, the screw thread was broken. In addition, a. In order to prevent loosening, the adhesive was fixed on the bolt and nut, and the nut was fixed with another fixing plate to prevent it from moving, or a hole was made in the bolt and nut, and a pin was inserted to prevent loosening. B. As a simple method, a spring washer and a nut with nylon were used to prevent loosening. In each of the methods, the assembly work process and parts were separately required, resulting in an increase in cost. The method of B could not completely prevent the nut from loosening.
The present invention attaches two types of oppositely threaded threads 2 and 3 inside the nut 1 without changing the standard size of the conventional bolt. A bolt 6 is inserted into the nut 1 and rotated to tighten the workpiece 4. Next, a bolt 9 having a screw thread 7 opposite to the bolt 6 is inserted into the screw thread 3 of the nut 1 and tightened from above the bolt 6.
When the nut 1 tries to loosen, the rotational direction for loosening with respect to the bolt 6 and the rotational direction for loosening with respect to the bolt 9 are completely different from each other. The mating nut 1 cannot be loosened.
The direction of rotation when the bolt 6 is loosened and the direction of rotation when the bolt 9 is loosened are that the screw thread 5 and the screw thread 7 are always in opposite directions. Therefore, after tightening the workpiece with the bolt 6 and the nut 1, When the bolt 6 rotates to loosen, the movement is transmitted to the bolt 9, and if the bolt 9 is rotated in the same direction, the bolt 9 rotates along the thread 3 of the nut 1, so that the bolt 9 loosens. Instead, the bolt 6 is tightened. As a result, the bolt 6 is tightened and cannot be rotated for loosening.
With a nut that has been tightened only with a conventional strong force, the nut may begin to loosen with a slight trigger under strong and continuous vibration. In the present invention, on the premise of loosening, the rotation force of the nut 1 and the rotation of the bolt 6 and the bolt 9 are opposite to each other so that the rotating forces cancel each other.
As an effect of the present invention, in the work of tightening with a strong force, it is not necessary to have the skill level to stop at the last moment to break the thread. Anyone can easily tighten with normal power. In particular, in a process where vibration occurs continuously or intermittently, the rotation of the nut 1 is stopped by the bolt 6 and the bolt 9, and the rotation of the bolt 6 is stopped by the bolt 9 and is not loosened. Is done. In order to inherit the length, size, etc. of conventional bolts as they are, even when manufacturing products using conventional bolts and nuts (screws) as parts, the bolts of the present invention can be used without changing the production process. Nuts (screws) can be used as they are.

本発明に係る振動でも緩まないボルトとナット（ネジ）は、図１に示すように、ナット１にはボルト６を回転して差し込むことができる内側のナット部分のネジ山２とボルト９を回転して差し込むことができる内側のナット部分のネジ山３を備えている。
ボルト６の外形部分には、右回り（又は左回り）のネジ山５がつけられている。ナット部分のネジ山２とボルト６のネジ山５は同じ回り。ボルト９は、ボルト６とは違う反対回りのネジ山７がつけられている。ナット部分のネジ山３とボルト９のネジ山７は同じ回り。
ナット１とボルト６の外形部分のネジ山５と同じ方向のネジ山を付けたナット１のネジ山２で工作物４を締めつける。次に、摩擦抵抗を大きくするためにボルト６の頭につけた突起部分の上からボルト６の穴に沿ってボルト９を差込みナット１のネジ山３に差込み回転させ、ボルト６の頭部分とボルト９の頭部分が密着するように締めつける。
ナット１が緩もうとすると、ボルト６とボルト９に対して緩むための回転方向が全く反対のためお互いに回転する力が打ち消し合いナット１は緩むことができないのである。
工作物４を締め付けたボルト６が緩んで回転しょうとすると、その動きは、ボルト９に伝えられる。ボルト９が、同じ方向に回転すると、ボルト９はナット１の内側部分のネジ山２とは違う反対回りのネジ山３を付けた内側のナットに差し込んでいるため、ボルト９の回転は、緩むのではなく、反対にボルト６を締め付ける動きとなる。
その結果、ボルト６の回転は、ボルト９の回転によって打ち消し合い、又、ボルト９の回転はボルト６の回転によって打ち消し合い、お互いにボルト６とボルト９は緩まないのである。As shown in FIG. 1, the bolts and nuts (screws) that do not loosen even with vibration according to the present invention rotate the screw 2 and bolt 9 of the inner nut portion into which the bolt 6 can be rotated and inserted into the nut 1. The inner nut portion thread 3 can be inserted.
A clockwise (or counterclockwise) thread 5 is attached to the outer shape of the bolt 6. The screw thread 2 of the nut part and the screw thread 5 of the bolt 6 are the same. The bolt 9 is provided with a thread 7 opposite to the bolt 6, which is different from the bolt 6. The thread 3 of the nut part and the thread 7 of the bolt 9 are the same.
The workpiece 4 is fastened with the thread 2 of the nut 1 with the thread in the same direction as the thread 5 of the outer part of the nut 1 and the bolt 6. Next, in order to increase the frictional resistance, the bolt 9 is inserted into the screw thread 3 of the nut 1 along the hole of the bolt 6 from above the protruding portion attached to the head of the bolt 6 and rotated. Tighten so that the head of 9 is in close contact.
If the nut 1 is to be loosened, the rotational directions for loosening the bolts 6 and 9 are completely opposite to each other, so that the rotating forces cancel each other and the nut 1 cannot be loosened.
When the bolt 6 that tightens the workpiece 4 is loosened and tries to rotate, the movement is transmitted to the bolt 9. When the bolt 9 rotates in the same direction, the bolt 9 is inserted into the inner nut with the opposite screw thread 3 different from the screw thread 2 of the inner part of the nut 1, so that the rotation of the bolt 9 is loosened. Instead, the bolt 6 is tightened.
As a result, the rotation of the bolt 6 cancels out by the rotation of the bolt 9, and the rotation of the bolt 9 cancels out by the rotation of the bolt 6. The bolt 6 and the bolt 9 do not loosen each other.

本発明に係るボルトとナット（ネジ）は、工業的に量産する事が可能であるため、産業上の利用可能性を有する。Since the bolt and nut (screw) according to the present invention can be industrially mass-produced, they have industrial applicability.

本発明の実施例を示すための斜視図。The perspective view for showing the example of the present invention. ナット１の側面図と正面図 ナット１の内側部分には右回り（又は左回り）のネジ山２をつける。さらにネジ山２の内側部分には、ネジ山２とは違う反対回りのネジ山３をつける。内側部分の長さ及び内径は、工作物４の厚さ等によって変える。又、ネジ山２とネジ山３のピッチは工作物によって変える。ナット１はボルト６とボルト９の２種類のネジ山部分を備えたナットです。Side view and front view of nut 1 A clockwise (or counterclockwise) thread 2 is attached to the inner portion of the nut 1. Further, an opposite thread 3 different from the thread 2 is attached to the inner part of the thread 2. The length and the inner diameter of the inner part vary depending on the thickness of the workpiece 4 and the like. Further, the pitch of the thread 2 and the thread 3 is changed depending on the workpiece. Nut 1 is a nut with two types of thread parts, bolt 6 and bolt 9. ボルト６の側面図と正面図 ボルト６のネジ山５は、ナット１のネジ山２と同じ方向のネジ山ボルトの頭部の外側に不規則に凹凸８をつけている。ボルト６の中心部分は頭から先端まで、空洞となっており、ボルト９のネジ山部分が貫通できるようにしている。Side view and front view of the bolt 6 The thread 5 of the bolt 6 has irregularities 8 irregularly formed on the outside of the head of the thread bolt in the same direction as the thread 2 of the nut 1. The central portion of the bolt 6 is a cavity from the head to the tip, so that the thread portion of the bolt 9 can pass therethrough. ボルト９の正面図と側面図 ボルト９のネジ山７は、ナット１のネジ山３と同じ方向のネジ山ボルトの頭部の内側に不規則に凹凸８をつけている。ボルト９のネジ山７はボルト６のネジ山５とは反対回りのネジ山。Front View and Side View of Bolt 9 The thread 7 of the bolt 9 has irregularities 8 irregularly formed inside the head of the thread bolt in the same direction as the thread 3 of the nut 1. The thread 7 of the bolt 9 is the thread opposite to the thread 5 of the bolt 6. 使用した時の状態を示す断面図。工作物４を挟みつけるための、ナット１とボルト６と反回転ボルト９の組み立て構造図です。ナットとボルトの長さと大きさ等は挟む工作物の厚さ等によって変わる。又、ボルト６の頭の外側部分とボルト９の頭の内側部分には摩擦抵抗を大きくするために不規則に凹凸８をつけている。Sectional drawing which shows the state when used. This is an assembly structure diagram of the nut 1, bolt 6 and anti-rotation bolt 9 for sandwiching the workpiece 4. The length and size of the nut and bolt vary depending on the thickness of the workpiece to be sandwiched. Further, irregularities 8 are irregularly formed on the outer portion of the head of the bolt 6 and the inner portion of the head of the bolt 9 in order to increase the frictional resistance.

符号の説明Explanation of symbols

１ 内側に２種類のネジ山部分をもっているナット本体。
２ 右回り（又は左回り）のネジ山。
３ ２のネジ山とは違う反対回りのネジ山。
４ 工作物
５ ２のネジ山と同じ方向のネジ山
６ ボルト９のネジ山部分が貫通できるようにボルトの頭から先端まで穴があいており、５のネジ山をつけたボルト。
７ ２のネジ山と５のネジ山とは違う反対回りのネジ山。
８ 摩擦抵抗の大きくするための凹凸部分
９ ６のボルトとは違う反対回りのネジ山をつけたボルト1 Nut body with two types of thread on the inside.
2 A clockwise (or counterclockwise) thread.
32 Threads in the opposite direction that are different from the 2 thread.
4 Thread 5 in the same direction as the thread of workpiece 52 2 A bolt with 5 threads, with holes from the head to the tip of the bolt 9 so that the threaded portion of bolt 9 can penetrate.
7 Threads in opposite directions are different from thread 2 and thread 5
8 Uneven part for increasing frictional resistance 96 Bolts with oppositely threaded threads different from the 6 bolts

Claims (3)

ナット１の円柱の内側部分を大と小の２つの円形の溝を掘り、大きい円形の部分に右回り（又は左回り）のネジ山２の部分をつけ、小さい円形の部分には、ネジ山２とは違う反対回りのネジ山３を付けた円柱ナット。 ［図２］参照Two circular grooves, large and small, are dug in the inner part of the cylinder of the nut 1, a clockwise (or counterclockwise) thread 2 part is attached to the large circular part, and a thread is attached to the small circular part. Cylindrical nut with thread 3 on the opposite side, different from 2. See [Figure 2] 摩擦抵抗を大きくするために凹凸８をボルト６の頭の外側につけた円柱ボルト。 ［図３］参照Cylindrical bolt with irregularities 8 on the outside of the head of the bolt 6 in order to increase the frictional resistance. See [Figure 3] 摩擦抵抗を大きくするために凹凸８をボルト９の頭部の内側につけたボルト。 ［図４］参照A bolt with unevenness 8 on the inside of the head of the bolt 9 in order to increase the frictional resistance. See [Figure 4]
JP2008084751A 2008-02-27 2008-02-27 Screw not loosened even by strong vibration Pending JP2009204153A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020185297A1 (en) 2019-03-12 2020-09-17 Size Earl Allen Multi-piece anti-vibration locking fastener
CN113417926A (en) * 2021-05-27 2021-09-21 蒋玉婷 Anti-loosening stud
WO2021194138A1 (en) * 2020-03-25 2021-09-30 주식회사 엘지에너지솔루션 Battery pack including handle-locking mechanism
US11236778B2 (en) 2019-03-12 2022-02-01 Earl Allen Size, JR. Multi-piece anti-vibration locking fastener having coaxially arranged inner and outer opposite threaded bolts in combination with successive and opposite threaded profiles within a thickened base layer
US11499583B2 (en) 2019-03-12 2022-11-15 Earl Allen Size, JR. Fastener assembly

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020185297A1 (en) 2019-03-12 2020-09-17 Size Earl Allen Multi-piece anti-vibration locking fastener
US11168729B2 (en) 2019-03-12 2021-11-09 Earl Allen Size, JR. Multi-piece anti-vibration locking fastener
GB2596716A (en) * 2019-03-12 2022-01-05 Allen Size Earl Multi-piece anti-vibration locking fastener
US11236778B2 (en) 2019-03-12 2022-02-01 Earl Allen Size, JR. Multi-piece anti-vibration locking fastener having coaxially arranged inner and outer opposite threaded bolts in combination with successive and opposite threaded profiles within a thickened base layer
US11499583B2 (en) 2019-03-12 2022-11-15 Earl Allen Size, JR. Fastener assembly
GB2596716B (en) * 2019-03-12 2023-03-01 Allen Size Earl Multi-piece anti-vibration locking fastener
WO2021194138A1 (en) * 2020-03-25 2021-09-30 주식회사 엘지에너지솔루션 Battery pack including handle-locking mechanism
KR20210119789A (en) * 2020-03-25 2021-10-06 주식회사 엘지에너지솔루션 Battery Pack with a handle which has a loose stopper
CN114503346A (en) * 2020-03-25 2022-05-13 株式会社Lg新能源 Battery pack including handle locking device
EP4060801A4 (en) * 2020-03-25 2023-01-04 LG Energy Solution, Ltd. Battery pack including handle-locking mechanism
KR102684808B1 (en) 2020-03-25 2024-07-11 주식회사 엘지에너지솔루션 Battery Pack with a handle which has a loose stopper
CN113417926A (en) * 2021-05-27 2021-09-21 蒋玉婷 Anti-loosening stud

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