JP2008002676A - Crime prevention screw - Google Patents

Crime prevention screw Download PDF

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Publication number
JP2008002676A
JP2008002676A JP2006200011A JP2006200011A JP2008002676A JP 2008002676 A JP2008002676 A JP 2008002676A JP 2006200011 A JP2006200011 A JP 2006200011A JP 2006200011 A JP2006200011 A JP 2006200011A JP 2008002676 A JP2008002676 A JP 2008002676A
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Japan
Prior art keywords
rivet
screw
head
bolt head
mounting cover
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JP2006200011A
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Japanese (ja)
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Sunao Otake
直 大竹
Shingo Otake
伸吾 大竹
Masaru Hirono
優 廣野
Satoru Maeda
悟 前田
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OTAKE KK
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OTAKE KK
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Priority to JP2006200011A priority Critical patent/JP2008002676A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a crime prevention screw mechanism which surely fixes an attachment cover to a hexagon bolt head and a nut by a blind rivet or a drive rivet, and is prevented from being removed by a working tool. <P>SOLUTION: A hole into which an end of the drive rivet or the blind rivet is inserted is provided in a hexagon member constituting the hexagon bolt head part, a screw pitch designated to attach a set screw with a hexagon socket or a sizing screw from an opposite side is provided while a part of a rivet insertion hole diameter remains, a part of a section to a rivet end insertion hole remains by a screw below hole diameter, the set screw with the hexagon socket is fixed and attached, the attachment cover having a hole through which the end of the rivet can be inserted is covered on a special hexagon head bolt having a space where the rivet end, is opened in the hexagon bolt head, the rivet is inserted, the rivet end is opened in the space in a special hexagon bolt head by hitting a pin of the drive rivet, or by pulling a shaft of the blind rivet, and the attachment cover is designed so as not to come off from the bolt head. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明はボルト、ナットが作業工具では外せないようにした、イタズラや盗難を未然に防ぐ事を目的とした防犯用特殊ボルト、特殊長ナットに関するものである。  The present invention relates to a special bolt for crime prevention and a special long nut intended to prevent mischief and theft in advance so that the bolt and nut cannot be removed by a work tool.

従来、ネジは簡単に締め、緩める事の利便性が重要視され、この利便性ゆえにネジは工作機械から日常用品等の殆どの製品、商品に使用、利用され、ネジがなければ生活が成り立たないと言っても決して過言ではない。  Conventionally, the convenience of simply tightening and loosening screws has been regarded as important, and because of this convenience, screws are used and used in almost all products and products such as machine tools and daily goods. It is no exaggeration to say.

しかし、複雑な社会情勢になってきた昨今では、簡単にネジを緩めたり、外したりできることが、逆にイタズラや窃盗、凶悪犯罪に利用されるようになった。安全であるべき児童公園の遊戯具のネジが外され子供が大怪我をしたり、公園の備品が何者かに持ち去られたり、歩道の手摺り等のネジが外され危険な状態であったり、鉄塔が倒されたり等のイタズラから、橋梁のアルミ製の高欄が一晩のうちに持ち去られ、高級外車やRV車等の窃盗や、盗難車輌の何倍ものナンバープレートが盗まれ、盗難車輌のナンバープレートを付け替える事で、盗難車輌の発見を遅らせたり、さらに凶悪な二次犯罪に利用されている。  However, in today's complex social situation, the ability to easily unscrew and remove screws has been used for mischief, theft, and violent crime. Children's park play equipment that should be safe is unscrewed and the child is seriously injured, park equipment is taken away by someone, and the handrails on the sidewalk are unscrewed and in a dangerous state, From the pranks of a steel tower being knocked down, the aluminum railings of the bridge were taken away overnight, the high-end foreign cars and RV cars were stolen, and many times the number plates of stolen vehicles were stolen. By replacing the license plate, it is used for delaying the discovery of stolen vehicles and even more brutal secondary crimes.

そこで特殊工具を利用したイタズラ防止ネジが出現してきた。コンピューターのハードディスクや電化製品のブラックボックス等のネジやイタズラ防止に利用されてきたが、特殊ネジ用の工具が市場で簡単に購入できるようになりイタズラ防止や盗難防止の効果が薄れてきた。  Therefore, a prank prevention screw using a special tool has appeared. Although it has been used to prevent screws and mischief in computer hard disks and black boxes of electrical appliances, special screw tools can be easily purchased on the market, and the effects of preventing mischief and theft have diminished.

ボルト、ナットにアルミ製のカバーをカシメで固定する方法は電力会社の鉄塔等に利用されているが、アルミのカバーをカシメで固定した場合、強力に固定する事ができず、マイナスドライバー等で簡単にカバーを外す事が可能である。  The method of fixing the aluminum cover to the bolts and nuts with caulking is used in power company towers, etc., but if the aluminum cover is fixed with caulking, it cannot be firmly fixed, and a minus driver etc. It is possible to remove the cover easily.

大型の六角ボルト頭にネジを切り、プラスチック製のカバーを六角ボルトで固定する方法もあるが、これもレンチで簡単に外す事ができる。  There is also a method of cutting the screw on the head of the large hexagon bolt and fixing the plastic cover with the hexagon bolt, but this can also be easily removed with a wrench.

2、3年前に神戸市の公園の滑り台のネジが外され、児童が大怪我をした事件が発生した。その対策に神戸市は遊戯具のネジを溶接で固定した。  A few years ago, a slide in a park in Kobe City was unscrewed, and an incident occurred in which a child was seriously injured. As a countermeasure, Kobe City fixed the play equipment screws by welding.

上記のような従来技術の問題点を解決する事を意図して、防犯ネジを固定する作業工程では特殊レンチ等、特別な工具を使用するのではなく、本発明は、ネジの取り付け作業は通常の作業工具で行い、ネジを外す場合は従来の作業工具では外すことのできないネジを提供することを課題とする。  In order to solve the problems of the prior art as described above, the present invention does not use a special tool such as a special wrench in the work process for fixing the security screw. It is an object of the present invention to provide a screw that cannot be removed with a conventional work tool when removing the screw.

本発明は、特殊加工した六角ボルト頭や長ナットに直接、作業工具でトルクを伝えられないように、金属製のカバーをドライブリベットあるいはブラインドリベットで特殊六角ボルト頭、蓋付き長ナットに固定する事を最も主要な特徴とする。  In the present invention, a metal cover is fixed to a special hexagon bolt head and a long nut with a lid with a drive rivet or a blind rivet so that torque cannot be transmitted directly to the specially processed hexagon bolt head and long nut with a work tool. Things are the main feature.

本発明に係る防犯ネジは特殊六角ボルト頭内、蓋付き長ナット内で、リベット先端部が広がる空間を形成する製造法を確立した事で、ドライブリベットあるいはブラインドリベットで特殊六角ボルト頭、蓋付き長ナットに装着カバーを取り付け、作業工具で六角頭、ナットにトルクを伝えられないように構成した。この特殊六角ボルト、蓋付き長ナットは、ともに比較的簡単な製造方法で製造可能で、多品種の特殊六角ボルト、蓋付き長ナットを安価に提供できる。  The security screw according to the present invention has a special hexagon head and lid with a drive rivet or blind rivet by establishing a manufacturing method that forms a space where the rivet tip extends in the special hexagon head and the long nut with lid. A mounting cover was attached to the long nut so that torque could not be transmitted to the hexagon head and nut with the work tool. Both the special hexagon bolt and the long nut with lid can be manufactured by a relatively simple manufacturing method, and a wide variety of special hexagon bolts and long nuts with a lid can be provided at low cost.

特殊六角ボルト頭、蓋付き長ナットに装着カバーをドライブリベットやブラインドリベットで固定することで、スパナ、メガネレンチ、パイプレンチ、プライヤー等の作業工具では外す事ができず、電動ドリル、グライダー等の電動工具でリベットの頭を破壊して装着カバーを外す為に、取り外し作業に時間がかかり、防犯効果は確実に上がると想定される。玄関の鍵を一カ所から二カ所に増やすだけで、防犯効果があることは衆知の事実である。  By fixing the mounting cover to the special hexagon bolt head and long nut with lid with a drive rivet or blind rivet, it cannot be removed with a work tool such as a spanner, spectacle wrench, pipe wrench, pliers, etc. Since the power tool destroys the head of the rivet and removes the mounting cover, it takes time for the removal work, and the crime prevention effect is surely improved. It is common knowledge that just by increasing the number of entrance keys from one place to two, it has a crime prevention effect.

この発明の実施の形態を図面を参照しながら以下に説明する。図1及び図2は、この発明の1実施形態を示し、図1は車輌のナンバープレート4を固定金具5に特殊六角ボルトで固定し、装着カバー1を被せ特殊六角ボルト9にリベット2で固定した実施例の側面図で、図2は図1の断面図である。  Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show an embodiment of the present invention. FIG. 1 shows that a vehicle license plate 4 is fixed to a fixing bracket 5 with a special hexagon bolt, and a mounting cover 1 is put on and fixed to a special hexagon bolt 9 with a rivet 2. FIG. 2 is a cross-sectional view of FIG.

装着カバー1と六角ボルト頭6とをリベット2により、固定されることにより、六角ボルト頭6は装着カバー1で包まれ六角ボルト頭6にトルクを伝える事ができない。六角ボルト頭6の内部にはネジピッチ8を途中まで切り、六角穴付き止めネジ3は切られたネジピッチ8より奥に進む事ができず、六角ボルト頭6の内部には六角穴付き止めネジ3との間に空間を作り、リベット2が六角ボルト頭6内部で広がり、リベット2の先端部が六角頭内部で広がる事を可能にしたことで、装着カバー1と六角ボルト頭6をリベット2で固定でき、従来のカバー固定方法に比べ、より強力に固定できる。  By fixing the mounting cover 1 and the hexagon bolt head 6 with the rivet 2, the hexagon bolt head 6 is wrapped by the mounting cover 1 and cannot transmit torque to the hexagon bolt head 6. The screw pitch 8 is cut halfway inside the hexagon bolt head 6, and the hexagon socket set screw 3 cannot go deeper than the cut screw pitch 8. The hexagon socket set screw 3 is inside the hexagon bolt head 6. The rivet 2 spreads inside the hexagon bolt head 6 and the tip of the rivet 2 can spread inside the hexagon head so that the mounting cover 1 and the hexagon bolt head 6 can be It can be fixed and can be fixed more strongly than the conventional cover fixing method.

このように本発明の防犯ネジは、M6サイズの防犯ネジ用としてのブラインドリベットのリベット先端部の外径3.2ミリのステンレス製の場合、引張り強度は284kgfとされており、人力でリベット2を外す事は極めて困難で、電動工具でリベット頭を破壊しカバーを外さないかぎり、ボルト、ナットを外す事ができない。  As described above, when the security screw of the present invention is made of stainless steel having an outer diameter of 3.2 mm at the rivet tip of a blind rivet for an M6 size security screw, the tensile strength is 284 kgf, and the rivet 2 is set manually. It is extremely difficult to remove the bolts and nuts unless the rivet head is destroyed with a power tool and the cover is removed.

実施例を揚げて本発明を更に詳しく説明をするが、本発明はこれらの実施例にのみ限定されるものではない。
図1は特殊六角ボルト9でナンバープレート4を固定金具5に固定し、装着カバー1を六角ボルト頭6に被せ、リベット2で固定した実施例1である。
The present invention will be described in more detail with reference to examples, but the present invention is not limited to these examples.
FIG. 1 shows an embodiment 1 in which a license plate 4 is fixed to a fixing bracket 5 with a special hexagon bolt 9, a mounting cover 1 is placed on a hexagon bolt head 6 and fixed with a rivet 2.

図2は図1の断面図でリベット2で装着カバー1と六角ボルト頭6をリベット2で固定した構造を示し、六角ボルト頭6と六角穴付き止めネジ3との内部形状を示す。  FIG. 2 is a cross-sectional view of FIG. 1 showing a structure in which the mounting cover 1 and the hexagon bolt head 6 are fixed by the rivet 2 with the rivet 2, and the internal shapes of the hexagon bolt head 6 and the hexagon socket set screw 3 are shown.

図3と図4は六角ボルト頭6の側面図と断面図である。リベット挿入穴7とネジピッチ8の形状を示す。  3 and 4 are a side view and a sectional view of the hexagon bolt head 6. The shape of the rivet insertion hole 7 and the screw pitch 8 is shown.

図5は特殊六角ボルト9の実施例1の側面図で六角ボルト頭6と六角穴付き止めネジ3を組立、溶接、接着剤等で固定した特殊六角ボルト9の実施例1である。  FIG. 5 is a side view of the special hexagon bolt 9 according to the first embodiment, which is the first embodiment of the special hexagon bolt 9 in which the hexagon bolt head 6 and the hexagon socket set screw 3 are assembled, welded, and fixed by an adhesive or the like.

図6は特殊六角ボルト9の実施例2の側面図で、図7は図6の断面図である。ボルトは多くのサイズがあり、多くのサイズに対応すべき、製造実施例で六角ボルト頭にリベット先端部が広げるための穴をあけ、リベット挿入穴7を設けた蓋10で穴を塞いだ特殊六角ボルト9の実施例2の図で、リベット2で装着カバー1が固定できる特殊六角ボルト9の製法実施例2である。  6 is a side view of Embodiment 2 of the special hexagon bolt 9 and FIG. 7 is a cross-sectional view of FIG. Bolts have many sizes and should be compatible with many sizes. In the manufacturing example, a hole for opening the rivet tip is opened on the hexagon bolt head, and the hole is closed with a lid 10 provided with a rivet insertion hole 7 FIG. 6 is a diagram of a second embodiment of the hexagon bolt 9, which is a second embodiment of the manufacturing method of the special hexagon bolt 9 in which the mounting cover 1 can be fixed with the rivet 2.

図8は木ネジ12、タッピンネジ12に装着カバー1が取り付けられるよう六角ボルト頭6を取り付けた側面図である。図9は図8の断面図で木ネジ12にタップ8を切った六角ボルト頭6を装着した特殊六角頭木ネジの製法実施例3である。  FIG. 8 is a side view in which the hexagon bolt head 6 is attached so that the mounting cover 1 can be attached to the wood screw 12 and the tapping screw 12. FIG. 9 is a sectional view of FIG. 8 showing a manufacturing method example 3 of a special hexagon head wood screw in which a hexagon bolt head 6 having a tap 8 cut is attached to a wood screw 12.

図10は蓋付き長ナット13の側面図で、図11は図10の断面図で蓋付き長ナット13にリベット2が挿入できるリベット挿入穴7をあけた蓋10を長ナットに溶接、接着剤等で固定し、六角ボルト頭6に装着カバー1をリベット2で固定し、特殊六角ボルト9のネジ先端部部に蓋付き長ナット13を取り付け、装着カバー1をリベット2で固定した特殊六角ボルト頭、蓋付き長ナット画側に装着カバー1をリベット2で固定できるようにし、ナット、ボルト頭の両側に装着カバー1を固定できるようにした実施例4である。  FIG. 10 is a side view of the long nut 13 with a lid, and FIG. 11 is a cross-sectional view of FIG. 10, in which the lid 10 having a rivet insertion hole 7 into which the rivet 2 can be inserted is welded to the long nut. Etc., fixing the mounting cover 1 to the hexagon bolt head 6 with the rivet 2, attaching a long nut 13 with a lid to the screw tip of the special hexagon bolt 9, and fixing the mounting cover 1 with the rivet 2 This is an embodiment 4 in which the mounting cover 1 can be fixed with rivets 2 on the side of the long nut with the head and lid, and the mounting cover 1 can be fixed on both sides of the nut and bolt heads.

図12は装着カバー1の側面図で、図13は図12の断面図でリベット2の頭を沈み込ませることでリベット2をニッパー等で切断や簡単に破壊できないようにした、リベット保護穴14の形状である。  FIG. 12 is a side view of the mounting cover 1, and FIG. 13 is a cross-sectional view of FIG. 12, in which the rivet 2 is submerged so that the rivet 2 cannot be cut or easily broken by a nipper or the like. It is the shape.

最近、犯罪が凶悪化しており、何百キロもある金庫が持ち去られたり、盗難車が激増しており、逃亡目的や摘発を逃れるために盗難車のナンバープレートを付け替えるために、盗難車の何倍ものナンバープレートが盗まれており、ナンバープレートの盗難対策に、警察も対策に苦慮しているのが現状である。  Recently, crime has been aggravated, hundreds of kilometers of safes have been taken away, and the number of stolen cars has increased dramatically. Twice as many license plates have been stolen, and the police are struggling with measures against theft of license plates.

近年、アルミ製の門扉が盗難にあったり、橋梁のアルミ製の高欄が盗まれたり、屋外の設備、施設がイタズラや盗難目的でネジを外される事件が多く発生しており、本発明はこうした対策に、安価で、簡単な作業で取り付け、電動工具を使用しなければ外れないネジの提供で産業上の利用可能性、効果はきわめて高いと想定できる。  In recent years, there have been many cases where aluminum gates were stolen, aluminum railings of bridges were stolen, outdoor equipment and facilities were mischievous and unscrewed for the purpose of theft. It can be assumed that industrial applicability and effectiveness are extremely high by providing screws that can be attached to such measures at low cost and with simple work, and that cannot be removed without using a power tool.

特殊六角ボルト頭に装着カバーをドライブリベットあるいはブラインドリベットで固定した説明図である。(実施例1)It is explanatory drawing which fixed the mounting cover to the special hexagon bolt head with the drive rivet or the blind rivet. (Example 1) 図1の断面説明図。Cross-sectional explanatory drawing of FIG. 六角ボルト頭の側面図で特殊六角ボルトの実施例1の部品図。FIG. 3 is a side view of a hexagon bolt head and a part diagram of the first embodiment of the special hexagon bolt. 図3の断面図で六角ボルト頭の製造実施例1の説明図。Explanatory drawing of the manufacture Example 1 of a hexagon bolt head with sectional drawing of FIG. 図3の六角ボルト頭に六角穴付き止めネジを装着固定した特殊六角ボルトの側面図。(実施例1)FIG. 4 is a side view of a special hexagon bolt in which a hexagon socket set screw is attached and fixed to the hexagon bolt head of FIG. 3. (Example 1) 特殊六角ボルトの側面図であり、六角ボルト頭にリベット先端部が広がる事ができる空間を保持できる穴をあけ、リベット挿入穴をあけた蓋を溶接、接着した説明図。(実施例2)It is a side view of a special hexagon bolt, and is an explanatory view in which a hole capable of holding a space where the rivet tip can spread is formed in the head of the hexagon bolt, and a lid with a rivet insertion hole is welded and bonded. (Example 2) 図6の特殊六角ボルトの断面説明図。Sectional explanatory drawing of the special hexagon bolt of FIG. 木ネジ、タッピンネジに図3の六角ボルト頭を装着固定用ネジ部に固定した側面図。(実施例3)The side view which fixed the hex bolt head of Drawing 3 to the screw part for attachment fixation to a wood screw and a tapping screw. (Example 3) 図8の断面説明図。Cross-sectional explanatory drawing of FIG. 蓋付き長ナットの側面図。(実施例4)The side view of a long nut with a lid. Example 4 図10の断面説明図。Cross-sectional explanatory drawing of FIG. 装着カバーの側面図。The side view of a mounting cover. 図12の断面説明図。Cross-sectional explanatory drawing of FIG.

符号の説明Explanation of symbols

1 装着カバー
2 ドライブリベット(ブラインドリベット)
3 六角穴付き止めネジ(寸切りネジ)
4 固定物(例、ナンバープレート)
5 固定金具
6 六角ボルト頭
7 リベット挿入穴
8 ネジピッチ
9 特殊六角ボルト
10 リベット挿入穴付き蓋
11 リベット先端用空間
12 木ネジ、タッピンネジ部
13 蓋付き長ナット
14 リベット保護穴
15 特殊六角頭木ネジ
1 Mounting cover 2 Drive rivet (blind rivet)
3 Hexagon socket set screw (dimension cutting screw)
4 Fixed objects (eg license plate)
5 Fixing bracket 6 Hex bolt head 7 Rivet insertion hole 8 Screw pitch 9 Special hexagon bolt 10 Cover with rivet insertion hole 11 Space for rivet tip 12 Wood screw, tapping screw 13 Long nut with lid 14 Rivet protection hole 15 Special hexagon head wood screw

Claims (9)

六角ボルト頭部分を構成する六角形部材にドライブリベットあるいはブラインドリベットのリベット先端部分が挿入できる穴をあけ、その穴径の一部の長さを残し、反対側から六角穴付き止めネジや寸切りネジ等が装着できるように、指定されたネジピッチを切り、リベット先端挿入穴との間の一部をネジ下穴径で残し、それに六角穴付き止めネジ等を装着固定し、リベット先端部を広げる事が可能な空間部を形成した特殊六角ボルトと、特殊六角ボルトのボルト頭部分に被せる装着カバーとで構成し、リベット先端部分が貫通できる穴をあけた装着カバーを特殊ボルト頭に被せ、リベットを挿入し、ドライブリベットのピンを叩くか、あるいはブラインドリベットのシャフトをハンドリベッター等で引き抜き、特殊ボルト頭内の空間部で、リベット先端部が広がる事で、特殊六角ボルト頭から装着カバーが外れないようにした防犯ネジ。  Drill a hole into which the rivet tip of a drive rivet or blind rivet can be inserted into the hexagonal member that forms the head of the hexagon bolt, leaving a part of the diameter of the hole diameter, and a hexagon socket set screw or dimension cut from the opposite side. Cut the specified screw pitch so that screws can be mounted, leave a part between the rivet tip insertion hole with the screw hole diameter, and fix it with a hexagon socket set screw, etc., and widen the rivet tip A special hexagon bolt that forms a space that can be used, and a mounting cover that covers the bolt head of the special hexagon bolt, and covers the special bolt head with a mounting cover that has a hole through which the rivet tip can penetrate. , Hit the pin of the drive rivet, or pull out the shaft of the blind rivet with a hand riveter etc., in the space inside the special bolt head, Betting tip is it is spread, crime prevention screw that was so worn cover does not come off from the special hexagonal bolt head. 六角ボルト頭の内部を、ドライブリベットあるいはブラインドリベットの先端部を広げる事が可能な、空間を形成できる穴をあけ、その穴の上部部分にリベット先端部が挿入できる穴をあけた蓋を溶接あるいは接着剤等で固定し、ボルト頭に装着カバーを装着し、リベット挿入穴からドライブリベットあるいはブラインドリベットを挿入させ、ドライブリベットのピンを叩くか、あるいはブラインドリベットのシャフトを引き抜き、ボルト頭内に形成した空間内でリベットの先端部を広げ、六角ボルト頭から装着カバーが外れないようにした防犯ネジ。  Inside the hexagon bolt head, a hole that can form a space that can widen the tip of the drive rivet or blind rivet is drilled, and a lid with a hole that allows the rivet tip to be inserted into the upper part of the hole is welded or Fix it with adhesive etc., attach the mounting cover to the bolt head, insert the drive rivet or blind rivet from the rivet insertion hole, hit the pin of the drive rivet, or pull out the shaft of the blind rivet and form it in the bolt head A security screw that widens the tip of the rivet in the space and prevents the mounting cover from being removed from the head of the hexagon bolt. 長ナットにドライブリベットあるいはブラインドリベットの先端部が挿入できる穴をあけた蓋を、溶接あるいは接着剤等で固定した蓋付き長ナットに、装着カバーを装着し装着カバーが蓋付き長ナットに、リベットで固定され外れないようにした、請求項1、請求項2に記載された防犯ネジのボルト頭と蓋付き長ナット両側に装着カバーをドライブリベットあるいはブラインドリベットで固定できるようにした特殊六角ボルト頭、蓋付き長ナットの両側に装着カバーが装着固定できる防犯ネジ。  Attach a cover with a lid with a hole in which the tip of the drive rivet or blind rivet can be inserted into the long nut, and fix the cover with a weld or adhesive, etc. A special hexagon bolt head that can be fixed with a drive rivet or blind rivet on both sides of the bolt head of the security screw and the long nut with lid, which is fixed with a screw so that it cannot be removed. A security screw that can be attached and fixed on both sides of the long nut with lid. タッピンネジや木ネジ等のネジ部と請求項1に記載された六角ボルト頭部分が装着固定できるよう、装着用ネジを切ったタッピンネジや木ネジ等に六角ボルト頭部分を溶接、接着固定し、装着カバーを被せ、ドライブリベットあるいはブラインドリベットで装着カバーを固定し、作業工具等で外せないようにした防犯ネジ。  Hexagon bolt head part is welded, bonded and fixed to the tapping screw or wood screw with the mounting screw cut so that the screw part such as tapping screw or wood screw and the hexagon bolt head part described in claim 1 can be attached and fixed. A security screw that is covered with a cover rivet or blind rivet, and secured with a work tool. 装着カバーはリベット頭が沈み込めるように、装着カバーのリベット装着穴の上部をリベット頭外径より少し広げ、リベット頭が装着カバーから飛び出ない事を特徴とした請求項1、請求項2、請求項3、請求項4に記載された防犯ネジ。  The mounting cover has a configuration in which an upper part of a rivet mounting hole of the mounting cover is slightly wider than an outer diameter of the rivet head so that the rivet head can sink, and the rivet head does not protrude from the mounting cover. Item 3. A security screw according to item 3 or claim 4. 装着カバーは切削加工で製造された請求項1、請求項2、請求項3、請求項4に記載された防犯ネジ用装着カバー。  The mounting cover for a security screw according to claim 1, 2, 3, or 4, wherein the mounting cover is manufactured by cutting. 装着カバーはプレス加工で製造された請求項1、請求項2、請求項3、請求項4に記載された防犯ネジ用装着カバー。  The mounting cover for a security screw according to claim 1, 2, 3, or 4, wherein the mounting cover is manufactured by press working. 装着カバーはダイキャスト加工で製造された請求項1、請求項2、請求項3、請求項4に記載された防犯ネジ用装着カバー。  The mounting cover for a security screw according to claim 1, 2, 3, or 4, wherein the mounting cover is manufactured by die casting. 装着カバーはパイプをカットし、パイプ外径と同等外径の円形蓋を作り、リベット頭外径より少し大きめの穴をあけ、リベット頭外径より大きな円形板に、リベット先端部が貫通できる穴をあけ、円形蓋の下側に溶接、接着材で固定した円形蓋をパイプに溶接、接着をした、請求項1、請求項2、請求項3,請求項4に記載された防犯ネジ用装着カバー。  The mounting cover cuts the pipe, creates a circular lid with an outer diameter equal to the outer diameter of the pipe, drills a hole slightly larger than the outer diameter of the rivet head, and allows the tip of the rivet to pass through a circular plate larger than the outer diameter of the rivet head The installation of the security screw according to claim 1, claim 2, claim 3, and claim 4, wherein a circular lid fixed with an adhesive is welded and bonded to the pipe. cover.
JP2006200011A 2006-06-22 2006-06-22 Crime prevention screw Pending JP2008002676A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105889292A (en) * 2014-12-19 2016-08-24 遵义勤乐五金建材加工厂 Antitheft foundation bolt
CN114483757A (en) * 2022-01-26 2022-05-13 国网山东省电力公司泰安供电公司 Safety screw sleeve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105889292A (en) * 2014-12-19 2016-08-24 遵义勤乐五金建材加工厂 Antitheft foundation bolt
CN114483757A (en) * 2022-01-26 2022-05-13 国网山东省电力公司泰安供电公司 Safety screw sleeve

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