JPH06313418A - Paint removal bolt - Google Patents

Paint removal bolt

Info

Publication number
JPH06313418A
JPH06313418A JP12356593A JP12356593A JPH06313418A JP H06313418 A JPH06313418 A JP H06313418A JP 12356593 A JP12356593 A JP 12356593A JP 12356593 A JP12356593 A JP 12356593A JP H06313418 A JPH06313418 A JP H06313418A
Authority
JP
Japan
Prior art keywords
bolt
nut
guide portion
groove
diameter
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.)
Granted
Application number
JP12356593A
Other languages
Japanese (ja)
Other versions
JP3283336B2 (en
Inventor
Takehiro Okuwaki
武大 奥脇
Hidetake Sakuragi
秀偉 桜木
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.)
Nissan Motor Co Ltd
Topura Co Ltd
Original Assignee
Nissan Motor Co Ltd
Topura Co Ltd
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 Nissan Motor Co Ltd, Topura Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP12356593A priority Critical patent/JP3283336B2/en
Publication of JPH06313418A publication Critical patent/JPH06313418A/en
Application granted granted Critical
Publication of JP3283336B2 publication Critical patent/JP3283336B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

PURPOSE:To provide a bolt having a function to remove a paint film inside a nut as well as to prevent the bolt from falling at the point when the bolt is inserted into the fixed nut. CONSTITUTION:A bolt 1 has a screw thread part 1a followed by a guidance part 1b formed thereon. The outside diameter 'd' of the guidance part 1b is almost the same as the inside diameter of a fixed nut and the same outside diameter continues to its end. Five groove 6, of which sectional form is in a trapezoid shape, are provided from a several threads, for example, three threads of the screw thread parts 1a to the guidance part 1b on the circumference of the bolt 1 which can be surely inserted into the nut owing to the guidance 1b and a paint film inside the nut can be removed owing to the groove 6.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、ボルト、特に、内面に
塗料が付着したナットに螺合する塗装取りボルトに関す
るものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bolt, and more particularly to a paint removing bolt which is screwed onto a nut having an inner surface coated with paint.

【0002】[0002]

【従来の技術】従来、例えば自動車部品を車体に固定す
る手段としては、ボルト固定が一般的である。この方法
は、図3に示すように、締め付け材4の締め付け箇所に
貫通穴5を開け、裏面側にナット2を溶接し、貫通穴が
開けられた被締め付け材3を重ねて、ボルト1により締
結する方法である。ナット2をあらかじめ溶接しておく
ことにより、締結作業において、ナット2の回り止めを
しておく必要がないから、作業性を高めることができる
方法である。この方法においては、通常工程としては、
ボディ等に溶接によりナット2を取り付け、電着塗装を
施した後に各部位をボルトにより締結するものである。
したがって、塗装を施した時点でナット2の内部に塗膜
がたまる。現在、この電着塗装については、カチオン系
の塗料が多く用いられているが、この塗膜が非常に硬い
ため、ボルトで締結する際、ナット内にカチオン塗膜等
の塗装膜が付着したままで、ボルトをねじ込むことは困
難である。無理にねじ込むと、ボルトやナットのねじ山
が破損したり、ボルト自体の破損を招くこともある。
2. Description of the Related Art Conventionally, bolt fixing is generally used as a means for fixing automobile parts to a vehicle body. In this method, as shown in FIG. 3, a through hole 5 is opened in a tightening portion of a tightening member 4, a nut 2 is welded on a back surface side, a tightened member 3 having a through hole is overlapped, and a bolt 1 is used. It is a method of concluding. By welding the nut 2 in advance, it is not necessary to prevent the nut 2 from rotating during the fastening work, and thus the workability can be improved. In this method, the normal steps are:
The nut 2 is attached to the body or the like by welding, and after electrodeposition coating is applied, each part is fastened with bolts.
Therefore, a coating film is accumulated inside the nut 2 when the coating is applied. Currently, a lot of cationic paints are used for this electrodeposition coating, but this coating is so hard that when the bolts are tightened, a coating film such as a cationic coating remains attached inside the nut. It is difficult to screw the bolt in. If the screw is forcibly screwed in, the thread of the bolt or nut may be damaged, or the bolt itself may be damaged.

【0003】これを解決するために、塗装前にナット面
をマスキングしておき、ナットのねじ山部に塗料が侵入
しないようにする方法や、塗装後にナットのねじ山を再
度タップ立てする方法があるが、いずれも、工数がかか
り、組立能率の低下やコスト高を招き、にわかには採用
できないという問題を有している。
In order to solve this, there is a method of masking the nut surface before coating so that the paint does not enter the thread portion of the nut, or a method of tapping the thread of the nut again after coating. However, each of them has a problem that it takes a lot of man-hours, causes a decrease in assembling efficiency and a high cost, and cannot be adopted suddenly.

【0004】現在、ボルトの先端部分でナットの内部に
溜まった塗膜を剥離しながらねじ込み締結を行なう目的
で考案されたボルトも知られている。図4は、そのよう
な構造のボルトの先端部近傍の側面図である。図4
(A),図4(B)は、それぞれ別個の構造のものを示
している。図中、1はボルト、1aはねじ山部、1bは
案内部、6は溝部である。図4(A)のボルト1は、ね
じ山部1aの先に案内部1bが形成されており、案内部
1bは先細りの形状に構成されている。溝部6は断面が
三角形に形成されている。また、図4(B)のボルト1
は、溝部6が幅広に削られた形状に設けられたものであ
る。
At present, there is also known a bolt designed for the purpose of screwing and fastening while peeling off the coating film accumulated inside the nut at the tip of the bolt. FIG. 4 is a side view of the vicinity of the tip of a bolt having such a structure. Figure 4
(A) and FIG. 4 (B) show different structures. In the figure, 1 is a bolt, 1a is a screw thread portion, 1b is a guide portion, and 6 is a groove portion. In the bolt 1 of FIG. 4A, the guide portion 1b is formed at the tip of the thread portion 1a, and the guide portion 1b is formed in a tapered shape. The groove 6 has a triangular cross section. In addition, the bolt 1 of FIG.
Is provided in a shape in which the groove portion 6 is widely cut.

【0005】これらのボルトによる締結作業において
は、塗膜で埋まったナットにボルトを締結しようとした
場合、ナットの面取り等の関係で、ボルトが倒れやすい
状態にあり、正規のめねじとおねじの嵌め合いの前に、
所定の推力とトルクが加えられると、より倒れは増長さ
れる傾向となる。倒れが生じたまま、ボルトを回転させ
ると、ねじの正規の締結が行なわれず、ねじの噛み込み
という不具合を招いている。また、単に、ねじに塗装を
取る機能を持たせた場合には、ねじ込み時に発生するト
ルクは、そのまま作業者への負担となり、作業者の疲労
を招き、締め付け効率の低下につながるから、ねじ込み
トルクを低く抑えることが課題となっている。
In the fastening work with these bolts, when trying to fasten the bolt to the nut filled with the coating film, the bolt is liable to fall down due to the chamfering of the nut and the like. Before fitting
When a predetermined thrust and torque are applied, the tilt tends to increase. If the bolt is rotated while it is still falling, the screw is not properly tightened, which causes a problem of biting the screw. Also, if the screw has a function to remove the paint, the torque generated when screwing in will be a burden to the operator as it is, leading to fatigue of the operator and a decrease in tightening efficiency. The problem is to keep the value low.

【0006】[0006]

【発明が解決しようとする課題】本発明は、上述した問
題点を解決するためになされたもので、ボルトの倒れを
防止して、正規のねじの嵌め合いとなるようにして、ボ
ルトが塗装を取る以前、または、塗装を取っている段階
でのねじの噛み込みをなくし、ねじ込み時でのトルクを
低くし、作業者への負担を軽減することを目的とするも
のである。
SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and prevents the bolt from falling down so that a regular screw fitting is achieved and the bolt is painted. The purpose of the present invention is to prevent the screw from being caught before the removal or before the painting, to reduce the torque at the time of screwing in and reduce the burden on the operator.

【0007】[0007]

【課題を解決するための手段】本発明は、請求項1に記
載の発明においては、塗装取りボルトにおいて、ねじ山
部の先端部にナット内径とほぼ等しい外径の案内部が形
成され、かつ、前記ねじ山部の一部から前記案内部にか
けて、軸方向に沿って断面が台形で谷径より深い少なく
とも1本の溝部が形成されていることを特徴とするもの
である。
According to a first aspect of the present invention, in the paint removing bolt, a guide portion having an outer diameter substantially equal to the inner diameter of the nut is formed at the tip of the thread portion, and At least one groove having a trapezoidal cross section along the axial direction and deeper than the root diameter is formed from a part of the thread portion to the guide portion.

【0008】また、請求項2に記載の発明においては、
塗装取りボルトにおいて、ねじ山部の先端部に谷径より
小さい外径の案内部が形成され、かつ、前記案内部に至
る前記ねじ山部の一部に、軸方向に沿って断面が台形で
谷径より深く前記案内部の外径より浅い少なくとも1本
の溝部が形成されていることを特徴とするものである。
Further, in the invention described in claim 2,
In the paint removal bolt, a guide portion having an outer diameter smaller than the root diameter is formed at the tip of the thread portion, and a part of the thread portion reaching the guide portion has a trapezoidal cross section along the axial direction. It is characterized in that at least one groove is formed which is deeper than the root diameter and shallower than the outer diameter of the guide portion.

【0009】[0009]

【作用】請求項1に記載の発明によれば、ボルトの案内
部の外径とナットの内径がほぼ等しいことにより、常に
ボルトとナットのねじ面が垂直状態を保ち、無理な締め
付け作業や姿勢においても、一度ボルトがナット内に挿
入されれば、ボルトに倒れが生じることはなく、確実な
はめ合いが保証される。
According to the invention described in claim 1, since the outer diameter of the guide portion of the bolt and the inner diameter of the nut are substantially equal to each other, the screw surfaces of the bolt and the nut are always kept in a vertical state, and an unreasonable tightening work or posture. Also in the case of (1), once the bolt is inserted into the nut, the bolt does not fall down, and a secure fit is guaranteed.

【0010】請求項2に記載の発明によれば、ボルトの
案内部の外径がナットの内径に対してある程度小さいか
ら、ナットの孔の探り作業が容易である。
According to the second aspect of the invention, since the outer diameter of the guide portion of the bolt is smaller than the inner diameter of the nut to some extent, the work of searching the hole of the nut is easy.

【0011】[0011]

【実施例】図1は、本発明のボルトの第1の実施例を説
明するためのもので、図1(A)は先端部近傍の側面
図、図1(B)は各部の説明図、図1(C)は溝部の断
面図である。図中、1はボルト、1aはねじ山部、1b
は案内部、1cは転造痕、6は溝部である。ボルト1
は、ねじ山部1aに続いて案内部1bが形成されてい
る。案内部1bには転造痕1cが形成されている。案内
部1bの外径dは、ボルト1が螺合される固定ナットの
内径にほぼ等しく、むしろやや小さめであり、ほぼ同じ
外径で先端まで続いている。溝部6は、ねじ山部の数
山、例えば、3山から案内部1bにかけて、断面が台形
の溝として、周上に5本が設けられている。
DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is for explaining a first embodiment of the bolt of the present invention. FIG. 1 (A) is a side view of the vicinity of the tip, and FIG. 1 (B) is an explanatory view of each part. FIG. 1C is a sectional view of the groove. In the figure, 1 is a bolt, 1a is a threaded portion, 1b
Is a guide portion, 1c is a rolling mark, and 6 is a groove portion. Bolt 1
The guide portion 1b is formed following the thread portion 1a. A rolling mark 1c is formed on the guide portion 1b. The outer diameter d of the guide portion 1b is substantially equal to the inner diameter of the fixed nut with which the bolt 1 is screwed, and is rather small, and continues to the tip with substantially the same outer diameter. Five grooves 6 are provided on the circumference as a groove having a trapezoidal cross section from several threads of the thread portion, for example, three threads to the guide portion 1b.

【0012】各部の寸法関係について説明する。図1
(B)に示すように、溝部6は、台形状の凹部として形
成されている。この凹部は、側壁6a,6bは、傾斜面
として形成されている。締め付けの際のボルト1の回転
方向(図示矢印)に対して、先行する側の側壁6bの角
度は緩く、後続する側の側壁6aの角度は急になってい
る。溝部6の深さは、案内部1bの外径より深く形成さ
れている。
The dimensional relationship of each part will be described. Figure 1
As shown in (B), the groove 6 is formed as a trapezoidal recess. In this recess, the side walls 6a and 6b are formed as inclined surfaces. The angle of the side wall 6b on the leading side is small and the angle of the side wall 6a on the trailing side is steep with respect to the rotation direction (the arrow shown in the figure) of the bolt 1 when tightening. The depth of the groove portion 6 is formed deeper than the outer diameter of the guide portion 1b.

【0013】溝部6の断面形状を図1(C)に示した
が、この実施例では側壁6aの角度θ1 は約15度、側
壁6bの角度θ2 は約51度である。締め付けの際のボ
ルト1の回転方向(図示矢印)に対して、側壁6aの角
度を90度に近い急な角度にして、ナットの内面の塗膜
を剥しやすいようにした。平面状の溝底部とそれに続く
緩い傾斜面の側壁6bから構成されている部分は、剥離
した塗膜が目詰まりしないで逃げ易いようになってい
る。
The sectional shape of the groove 6 is shown in FIG. 1C. In this embodiment, the side wall 6a has an angle θ 1 of about 15 degrees and the side wall 6b has an angle θ 2 of about 51 degrees. The angle of the side wall 6a was set to a steep angle close to 90 degrees with respect to the rotation direction (indicated by the arrow) of the bolt 1 during tightening so that the coating film on the inner surface of the nut could be easily peeled off. The part formed by the flat groove bottom and the side wall 6b of the sloping slope which follows the flat groove is easy to escape without clogging of the peeled coating film.

【0014】この実施例では、案内部1bが、ねじ込ま
れるナットの内径にほぼ等しい外径を有しているため、
案内部1bがナット内に挿入されると、常にボルト1と
ナットのねじ面は垂直状態を保つことができ、どんな締
め付け作業姿勢であってもボルトに倒れは生じない。ま
た、ボルトとナット面が常に垂直であることが保証され
るから、ボルトとナットのねじ山は常に正規の状態で噛
み合い、噛み込みは生じない。そして、ねじ込みの際
に、ナット内の塗膜を剥離できるので、抵抗力を増加さ
せることもない。
In this embodiment, the guide portion 1b has an outer diameter substantially equal to the inner diameter of the nut to be screwed in,
When the guide portion 1b is inserted into the nut, the bolt 1 and the thread surface of the nut can always be kept in a vertical state, and the bolt does not fall down in any tightening work posture. Further, since it is guaranteed that the bolt and nut surfaces are always vertical, the threads of the bolt and nut are always meshed in a regular state, and no jamming occurs. Since the coating film inside the nut can be peeled off at the time of screwing, the resistance force is not increased.

【0015】上述した実施例のボルトの製造工程につい
て説明する。ボルトの呼び径もしくは転造ねじ下径近傍
の直径を有する適当な長さの線材を冷間加工によって、
一端に頭部を形成し、他端の先端部の所定長さ部分を案
内部1bの外径となる細径部に形成する。ついで、転造
工程で、ねじ山部と溝部が形成される。この転造の際
に、案内部には転造痕1cが形成される。
The manufacturing process of the bolt of the above embodiment will be described. By cold working a wire rod of an appropriate length having a nominal diameter of the bolt or a diameter near the rolling screw lower diameter,
A head portion is formed at one end, and a predetermined length portion of the tip portion at the other end is formed as a small-diameter portion that is the outer diameter of the guide portion 1b. Then, in a rolling process, a thread portion and a groove portion are formed. During this rolling, a rolling mark 1c is formed on the guide portion.

【0016】図2は、本発明のボルトの第2の実施例を
説明するためのもので、図2(A)は先端部近傍の側面
図、図2(B)は各部の説明図である。図中、図1と同
様な部分には同じ符号を付して説明を省略する。ねじ山
部1aに続いて形成される案内部1bの外径dは、ボル
ト1の谷径より小さい。したがって、第1の実施例のよ
うな転造痕はない。溝部6は、ねじ山部の数山、例え
ば、3山から案内部1bの手前にかけて、断面が台形の
溝として、周上に5本が設けられている。
2A and 2B are for explaining a second embodiment of the bolt of the present invention. FIG. 2A is a side view of the vicinity of the tip portion, and FIG. 2B is an explanatory view of each portion. . In the figure, the same parts as those in FIG. The outer diameter d of the guide portion 1b formed following the thread portion 1a is smaller than the root diameter of the bolt 1. Therefore, there are no rolling marks as in the first embodiment. Five grooves 6 are provided on the circumference as a groove having a trapezoidal cross section from several threads of the thread portion, for example, three threads to the front of the guide portion 1b.

【0017】各部の寸法関係について説明する。図2
(B)に示すように、溝部6の断面形状は、図1(C)
で説明したと同様な台形状である。溝部6の深さは、谷
径より深く、案内部1bの外径より浅く形成されてい
る。したがって、案内部1bには、溝部は形成されな
い。
The dimensional relationship of each part will be described. Figure 2
As shown in (B), the cross-sectional shape of the groove portion 6 is as shown in FIG.
It has a trapezoidal shape similar to that described in. The depth of the groove portion 6 is deeper than the root diameter and shallower than the outer diameter of the guide portion 1b. Therefore, no groove is formed in the guide portion 1b.

【0018】この実施例では、案内部1bが、ねじ込ま
れるナットの内径よりある程度小さいから、案内部1b
をナットに挿入することが容易であり、ナットのねじ孔
の探りが容易である。倒れに対しては、第1の実施例よ
り劣るが、図4で説明した従来のボルトよりも倒れは生
じにくい。したがって、工具をナットのねじ孔に対して
垂直にすることが容易な作業に対しては、倒れの問題が
生じにくい場合に、探りが容易となる利点がある。
In this embodiment, since the guide portion 1b is smaller than the inner diameter of the nut to be screwed in, the guide portion 1b is small.
Is easy to insert into the nut, and it is easy to find the screw hole of the nut. Although it is inferior to the first embodiment in the fall, it is less likely to fall than the conventional bolt described in FIG. Therefore, for the work in which it is easy to make the tool perpendicular to the screw hole of the nut, there is an advantage that it is easy to search when the problem of falling is unlikely to occur.

【0019】なお、上述した各実施例において、溝部が
形成される完全ねじ山の数や、溝部の断面形状、本数等
は一例であって、適宜の数、形状とすることができる。
また、溝部の長手方向に関しては、軸の母線方向に対し
て斜めに沿う方向としたが、平行に近い方向であっても
よい。斜めに沿う方向とした場合には、ねじ込みに際し
て、剥離した塗膜が上方に逃げやすい利点がある。
In each of the above-described embodiments, the number of complete threads for forming the groove, the cross-sectional shape of the groove, the number of threads, etc. are merely examples, and can be set to an appropriate number and shape.
Further, the longitudinal direction of the groove portion is set to be a direction oblique to the generatrix direction of the shaft, but it may be a direction close to parallel. The diagonal direction has an advantage that the peeled coating film easily escapes upward when screwing.

【0020】[0020]

【発明の効果】以上の説明から明らかなように、本発明
のボルトによれば、ボルトの倒れを防止して、正規のね
じの嵌め合いを保証でき、噛み込みの発生を避けること
ができる。また、ねじ込みの際に、ナット内の塗膜を剥
離できるので、抵抗力を増加させることもなく、例え
ば、自動車の組立ラインでの締め付け作業等に用いて、
作業性を向上させることができるという効果がある。
As is apparent from the above description, according to the bolt of the present invention, it is possible to prevent the bolt from falling down, to ensure proper screw fitting, and to prevent the occurrence of biting. Also, since the coating film inside the nut can be peeled off when screwed in, it does not increase the resistance, and is used, for example, for tightening work in an automobile assembly line,
The workability can be improved.

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

【図1】本発明のボルトの第1の実施例を説明するため
のもので、図1(A)は先端部近傍の側面図、図1
(B)は軸部の寸法関係の説明図、図1(C)は溝部の
拡大断面図である。
FIG. 1 is a view for explaining a first embodiment of a bolt of the present invention, FIG. 1 (A) is a side view in the vicinity of a tip portion, FIG.
FIG. 1B is an explanatory view of the dimensional relationship of the shaft portion, and FIG. 1C is an enlarged sectional view of the groove portion.

【図2】本発明のボルトの第2の実施例を説明するため
のもので、図2(A)は先端部近傍の側面図、図2
(B)は軸部の寸法関係の説明図である。
FIG. 2 is a view for explaining a second embodiment of the bolt of the present invention, FIG. 2 (A) is a side view of the vicinity of the tip portion, FIG.
(B) is an explanatory view of the dimensional relationship of the shaft portion.

【図3】固定ナットによる締結方法の説明図である。FIG. 3 is an explanatory diagram of a fastening method using a fixing nut.

【図4】従来のボルトの先端部近傍の側面図である。FIG. 4 is a side view of the vicinity of the tip of a conventional bolt.

【符号の説明】[Explanation of symbols]

1 ボルト 1a ねじ山部 1b 案内部 1c 転造痕 6 溝部 1 Bolt 1a Screw thread 1b Guide 1c Rolling mark 6 Groove

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 ねじ山部の先端部にナット内径とほぼ等
しい外径の案内部が形成され、かつ、前記ねじ山部の一
部から前記案内部にかけて、軸方向に沿って断面が台形
で谷径より深い少なくとも1本の溝部が形成されている
ことを特徴とする塗装取りボルト。
1. A guide portion having an outer diameter substantially equal to the inner diameter of the nut is formed at the tip of the thread portion, and a trapezoidal cross section is formed along the axial direction from a part of the thread portion to the guide portion. A paint removal bolt, characterized in that at least one groove portion deeper than the root diameter is formed.
【請求項2】 ねじ山部の先端部に谷径より小さい外径
の案内部が形成され、かつ、前記案内部に至る前記ねじ
山部の一部に、軸方向に沿って断面が台形で谷径より深
く前記案内部の外径より浅い少なくとも1本の溝部が形
成されていることを特徴とする塗装取りボルト。
2. A guide portion having an outer diameter smaller than the root diameter is formed at the tip of the thread portion, and a part of the thread portion reaching the guide portion has a trapezoidal cross section along the axial direction. A paint removal bolt, characterized in that at least one groove is formed that is deeper than the root diameter and shallower than the outer diameter of the guide portion.
JP12356593A 1993-04-27 1993-04-27 Paint removal bolt Expired - Lifetime JP3283336B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12356593A JP3283336B2 (en) 1993-04-27 1993-04-27 Paint removal bolt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12356593A JP3283336B2 (en) 1993-04-27 1993-04-27 Paint removal bolt

Publications (2)

Publication Number Publication Date
JPH06313418A true JPH06313418A (en) 1994-11-08
JP3283336B2 JP3283336B2 (en) 2002-05-20

Family

ID=14863735

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12356593A Expired - Lifetime JP3283336B2 (en) 1993-04-27 1993-04-27 Paint removal bolt

Country Status (1)

Country Link
JP (1) JP3283336B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003120632A (en) * 2001-10-11 2003-04-23 Meidoo:Kk Bolt, manufacturing die, and method of manufacturing the bolt
JP2013255645A (en) * 2012-06-12 2013-12-26 Hoshizaki Electric Co Ltd Dishwasher
WO2017022707A1 (en) * 2015-08-04 2017-02-09 株式会社青山製作所 Paint film-peeling bolt
US9664223B2 (en) 2012-06-01 2017-05-30 Aoyama Seisakusho Co., Ltd. Seizure prevention bolt
KR102106035B1 (en) * 2019-08-01 2020-06-04 영신금속공업 주식회사 Bolt for earth

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013109393A1 (en) 2013-08-29 2015-03-05 Epcos Ag Surge arresters

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003120632A (en) * 2001-10-11 2003-04-23 Meidoo:Kk Bolt, manufacturing die, and method of manufacturing the bolt
US9664223B2 (en) 2012-06-01 2017-05-30 Aoyama Seisakusho Co., Ltd. Seizure prevention bolt
JP2013255645A (en) * 2012-06-12 2013-12-26 Hoshizaki Electric Co Ltd Dishwasher
WO2017022707A1 (en) * 2015-08-04 2017-02-09 株式会社青山製作所 Paint film-peeling bolt
JPWO2017022707A1 (en) * 2015-08-04 2018-05-24 株式会社青山製作所 Film peeling bolt
US10267348B2 (en) 2015-08-04 2019-04-23 Aoyama Seisakusho Co., Ltd. Bolt for peeling coating film
KR102106035B1 (en) * 2019-08-01 2020-06-04 영신금속공업 주식회사 Bolt for earth

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