JP2014100742A - Bit for removing screw - Google Patents
Bit for removing screw Download PDFInfo
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- JP2014100742A JP2014100742A JP2012252100A JP2012252100A JP2014100742A JP 2014100742 A JP2014100742 A JP 2014100742A JP 2012252100 A JP2012252100 A JP 2012252100A JP 2012252100 A JP2012252100 A JP 2012252100A JP 2014100742 A JP2014100742 A JP 2014100742A
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- screw
- bit
- blade
- handle
- round
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- 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.)
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- 230000000669 biting effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
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- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
Abstract
Description
本発明は、使用によってネジ廻し用穴が崩れて取り外しが難しくなったネジを容易に、かつ効率的に取り外すことの出来るネジ外し用ビットに関する。 The present invention relates to a screw removal bit that can easily and efficiently remove a screw that has become difficult to remove due to use of a screw turning hole.
ネジ廻し用穴は一般的には破損されない状態に保持されるが、中には破損や摩耗によってネジ廻しが不可能の状態になるものも存在する。この場合、無理な手段でそのネジを取り外すことは出来るが、ネジ込みされている部材や装置等やネジそのものにダメージを与える恐れがある。従って、ネジ廻し用穴がダメになっているネジを安全に、かつ確実に取り外す手段が必要となる。 The screw-turning hole is generally held in a state where it is not damaged, but some of them are in a state in which the screw cannot be turned due to breakage or wear. In this case, the screw can be removed by unreasonable means, but there is a risk of damaging the screwed member or device or the screw itself. Therefore, there is a need for a means for safely and reliably removing a screw whose screw-turning hole is useless.
そのために、従来より各種のネジ外し用の工具が開発され、その中でもネジ外し用ビットが色々と開示されている。
本願の発明に比較的近いネジ外し用ビットとし、例えば「特許文献１」が挙げられる。
For this purpose, various types of unscrewing tools have been developed, and among them, various unscrewing bits have been disclosed.
An example of a screw removal bit that is relatively close to the invention of the present application is “Patent Document 1”.
前記の「特許文献１」の「特開平１０−２３０４７０号」の「ねじビット並びにねじ山等が損形した場合のねじ外し具」はネジ廻し用穴が完全に破損したり消滅しているようなねじに対してそのねじを取り外すのに有効なねじ外し具であるが、その構造の特徴としてはビットの先端（６）に中心より鋭角（９０度以下）の角度の刃部を形成したものであり、後に説明する本願の発明のように切刃部が鈍角に形成されると共にこの鈍角形状の一直線状の薄肉切刃部から柄部側に向かってラウンド部や凹状部を形成し、強度と破壊力を兼ね備えたものとは大きく相違するものである。 In the above-mentioned “Patent Document 1”, “Japanese Unexamined Patent Publication No. 10-230470”, “Screw Bit and Screw Remover in the Case of Damaged Screw Bits” seems to be completely damaged or disappeared. It is an effective screw remover for removing the screw from the center screw, but the structure is characterized by forming a blade with an acute angle (90 degrees or less) from the center at the tip (6) of the bit. The cutting edge is formed at an obtuse angle as in the invention of the present application to be described later, and a round part or a concave part is formed from the straight thin cutting edge part of the obtuse angle shape toward the handle part side, and the strength It is very different from those that have destructive power.
本発明は、以上の事情に鑑みて創案されたものであり、ネジ廻し用穴が破損したり摩耗したネジの取り外しが確実に出来、強度的にも高いネジ外し用ビットを提供することを目的とする。 The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a screw removal bit that can reliably remove a screw screw hole that has been damaged or worn, and that has high strength. And
本発明は、以上の目的を達成するために、請求項１の発明は、ネジの頭部のネジ廻し用穴が崩れて取り外しが難しいネジを容易に取り外すために使用するビットであって、該ビットは細長な柄部の先端に鈍角の刃部を形成するものからなり、前記刃部は、先端に形成される一直線状の薄肉切刃部と該切刃部から前記先端の角度に沿って左右に形成されるラウンド部と該ラウンド部と対峙する位置において形成され前記切刃部から前記柄部に向かって凹設する凹状部とからなることを特徴とする。 In order to achieve the above object, the present invention provides a bit used to easily remove a screw that is difficult to remove due to a screw turning hole in a screw head being broken. The bit is formed by forming an obtuse blade at the tip of an elongated handle, and the blade includes a straight thin cutting blade formed at the tip and the angle of the tip from the cutting blade. It consists of the round part formed in the right and left, and the concave part formed in the position which opposes this round part, and is recessed toward the said handle part from the said cutting blade part, It is characterized by the above-mentioned.
また、請求項２の発明は、前記柄部がその横断面の六角状の硬質棒体からなることを特徴とする。 The invention according to claim 2 is characterized in that the handle portion is formed of a hexagonal hard rod having a transverse section.
本発明の請求項１のネジ外し用ビットによれば、細長な柄部の先端に形成されている刃部としては一直線状の薄肉切刃部とラウンド部と凹状部からなり、薄肉切刃部は鋭い刃を形成し食い込み力が大きいと共に鈍角であり強度的にも高い。また、ラウンド部により押圧時においても剛性があり対手のネジに当接してビット全体のフラツキを防止する機能を有し、凹状部は薄肉切刃部による食い込み性の向上を図る機能を有するものからなり、強度と食い込み力の高い効果を上げることが出来る。 According to the unscrewing bit of claim 1 of the present invention, the blade portion formed at the tip of the elongated handle portion comprises a straight thin cutting blade portion, a round portion and a concave portion, and the thin cutting blade portion Forms a sharp blade, has a large bite force, is obtuse, and has high strength. In addition, the round part is rigid even when pressed and has a function to prevent fluttering of the entire bit by abutting against the screw of the opposite hand, and the concave part has a function to improve the biting property by the thin cutting edge part The effect of high strength and biting power can be increased.
また、請求項２のネジ外し用ビットによれば、柄部が六角形状のものからなり、薄肉切刃部とラウンド部及び凹状部の形成が高精度に形成出来る効果を有すると共に柄部は硬質棒体からなり、剛性の高いビットとしての効果を上げることが出来る。 In addition, according to the screw removal bit of claim 2, the handle portion is made of a hexagonal shape, and the formation of the thin cutting edge portion, the round portion and the recessed portion can be formed with high precision and the handle portion is hard. It consists of a rod and can increase the effect as a highly rigid bit.
以下、本発明のネジ外し用ビットの実施の形態を図面を参照して詳述する。
図１（ａ），（ｂ），（ｃ）に示すように本実施例のネジ外し用ビット１００は六角形の硬質棒材の柄部１０の先端に刃部１を形成したものからなる。
Embodiments of a screw removal bit according to the present invention will be described below in detail with reference to the drawings.
As shown in FIGS. 1A, 1B, and 1C, the unscrewing bit 100 of this embodiment is formed by forming a blade portion 1 at the tip of a handle portion 10 of a hexagonal hard bar.
この刃部１は図１の（ａ），（ｂ），（ｃ）に示す構造のものからなり一直線状の薄肉切刃部２とこの薄肉切刃部２から左右方向に先端の角度に沿って柄部１０側に向かって形成されるラウンド部３と同じく薄肉切刃部から左右方向に左右のラウンド部３と対峙する位置に形成させる凹状部４等とから形成される。なお、薄肉切刃部２は鈍角（図示では約１４０度）に形成され鈍角のものに較べて鋭いものではないが強度的には非常に高いものからなる。
また、ラウンド部３は薄肉切刃部２がネジ５（図２）に食い込む際にネジ５のネジ廻し用穴６から外れた頭部７に圧接し、ネジ外し用ビット１００を安定的に支持する機能を果すものと思考される。一方、凹状部４は薄肉切刃部２の食い込み力を高める機能を果すものと思考される。
This blade portion 1 has the structure shown in FIGS. 1A, 1B, and 1C, and has a straight thin cutting edge portion 2 and the angle from the thin cutting edge portion 2 in the left-right direction along the tip angle. In the same way as the round portion 3 formed toward the handle portion 10 side, the thin cutting blade portion is formed from a concave portion 4 or the like formed at a position facing the left and right round portions 3 in the left-right direction. The thin-walled cutting edge portion 2 is formed at an obtuse angle (about 140 degrees in the drawing) and is not as sharp as an obtuse angle but is very high in strength.
In addition, the round part 3 presses against the head 7 removed from the screw hole 6 of the screw 5 when the thin cutting edge part 2 bites into the screw 5 (FIG. 2), and stably supports the screw removal bit 100. It is thought to fulfill the function to do. On the other hand, the concave portion 4 is considered to fulfill the function of increasing the biting force of the thin cutting blade portion 2.
図２（ａ），（ｂ）は本実施例のネジ外し用ビット１００によるネジ外しの作用を説明するものである。ネジ５にはその頭部７のその中央部にネジ廻し用穴６が形成されたものからなり、そのネジ部８を対象物９にネジ込みした状態に保持されている。 2 (a) and 2 (b) illustrate the action of unscrewing by the unscrewing bit 100 of this embodiment. The screw 5 includes a screw hole 6 formed at the center of the head 7 and is held in a state where the screw 8 is screwed into the object 9.
まず、図２（ａ）に示すように本発明のネジ外し用ビット１００をネジ５のネジ廻し用穴６の位置に薄肉切刃部２が当る位置に位置決めする。次に、図略の押圧手段によりネジ外し用ビット１００をネジ５側に押圧することにより薄肉切刃部２がネジ廻し用穴６に食い込み、頭部５の一部に新たな溝１１を形成する。よって、ネジ外し用ビット１００はネジ５をネジ廻しすることが可能となる。この状態でネジ外し用ビット１００をネジ込み方向と逆方向に回転させることによりネジ外し用ビット１００と一体的構造になっているネジ５を対象物９から取り外すことが容易に出来る。
なお、ネジ外し用ビット１００の刃部１は前記のように鈍角に形成されており、ラウンド部３があるため高強度のものからなり、食い込みも確実に行うことが出来る。
First, as shown in FIG. 2A, the unscrewing bit 100 of the present invention is positioned at a position where the thin cutting edge portion 2 hits the position of the screw turning hole 6 of the screw 5. Next, when the unscrewing bit 100 is pressed to the screw 5 side by a pressing means (not shown), the thin cutting edge 2 bites into the screw turning hole 6 and forms a new groove 11 in a part of the head 5. To do. Therefore, the screw removal bit 100 can rotate the screw 5. In this state, by rotating the screw removal bit 100 in the direction opposite to the screwing direction, the screw 5 that is integrated with the screw removal bit 100 can be easily removed from the object 9.
In addition, the blade part 1 of the screw removal bit 100 is formed at an obtuse angle as described above, and since the round part 3 is provided, the blade part 1 is made of a high strength and can be reliably bite.
本発明は、以上の内容のものからなるが、本発明は以上の内容に限定されるものではなく、同一技術的範疇のものが適用されることは勿論である。 The present invention is composed of the contents described above, but the present invention is not limited to the contents described above, and those of the same technical category are of course applied.
本発明は、ネジ廻し用穴のあるすべてのネジに対して適用可能であり、その利用範囲は極めて広い。 The present invention can be applied to all screws having screw holes, and the range of use is extremely wide.
１ 刃部
２ 薄肉切刃部
３ ラウンド部
４ 凹状部
５ ネジ
６ ネジ廻し用穴
７ 頭部
８ ネジ部
９ 対象物
１０ 柄部
１１ 新たな溝
DESCRIPTION OF SYMBOLS 1 Blade part 2 Thin cutting blade part 3 Round part 4 Concave part 5 Screw 6 Screw hole 7 Head 8 Screw part 9 Object 10 Handle part 11 New groove
Claims (2)
The screw removing bit according to claim 1, wherein the handle portion is made of a hexagonal hard rod having a transverse section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012252100A JP2014100742A (en) | 2012-11-16 | 2012-11-16 | Bit for removing screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012252100A JP2014100742A (en) | 2012-11-16 | 2012-11-16 | Bit for removing screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2014100742A true JP2014100742A (en) | 2014-06-05 |
Family
ID=51023762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2012252100A Pending JP2014100742A (en) | 2012-11-16 | 2012-11-16 | Bit for removing screw |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2014100742A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016026184A1 (en) * | 2014-08-18 | 2016-02-25 | 四川省外贸机械进出口有限责任公司 | Tool facilitating take-out of damaged screw |
-
2012
- 2012-11-16 JP JP2012252100A patent/JP2014100742A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016026184A1 (en) * | 2014-08-18 | 2016-02-25 | 四川省外贸机械进出口有限责任公司 | Tool facilitating take-out of damaged screw |
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