JP2020015113A - Tool for removal of screw - Google Patents

Tool for removal of screw Download PDF

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JP2020015113A
JP2020015113A JP2018138321A JP2018138321A JP2020015113A JP 2020015113 A JP2020015113 A JP 2020015113A JP 2018138321 A JP2018138321 A JP 2018138321A JP 2018138321 A JP2018138321 A JP 2018138321A JP 2020015113 A JP2020015113 A JP 2020015113A
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screw
screw head
tool
holding
driver
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JP6532991B1 (en
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鈴木　勇雄
Isao Suzuki
勇雄 鈴木
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Abstract

To remove a screw more easily and quickly even if a groove on a screw head is clogged with dirt, rust and so on, or is crushed due to use of a screwdriver or the like.SOLUTION: A tool 1 for removal of screw holds a circumference of a screw head and removes a screw. The tool 1 has a cylindrical holding part 10 at one end, and a connection part 20 which is connected to a screwdriver at the other end. A taper part 14, in which an inner surface at one end of the holding part 10 expands in a tapered shape toward a tip, is formed on the holding part 10. Further, said one end is sharp. By bringing the screw had into contact with the inner surface at said one end, the holding part 10 holds the screw head. The inner surface of the holding part 10 may have a projection part 15.SELECTED DRAWING: Figure 1

Description

本発明は、ねじを除去する工具に関する。   The present invention relates to a tool for removing a screw.

建設現場等で、皿ねじ、鍋ねじ等のねじを板等に取り付けた後、ねじの頭部の溝が汚れや錆び等で詰まったり、ドライバー等の使用でつぶれてしまったりすることがある。このような場合、ねじを取り外す際に、作業員がねじ頭部をサンダーややすり等で切断したり、くぎ抜きでねじを撤去したりしていた。しかしながら、サンダーややすり等の場合、ねじ頭部以外の部分が板等に残存してしまう。また、くぎ抜きの場合、ねじ部分が板等に食い込んでいるため、ねじを引き抜くのが容易ではない。そこで、例えば、特許文献１のようなアタッチメントを取り付けた電動ねじ締付け・弛め工具を用いることで、より容易かつ迅速にねじを除去できる。   At a construction site or the like, after attaching a screw such as a flat head screw or a pan screw to a plate or the like, the groove of the head of the screw may be clogged with dirt or rust, or may be crushed by using a screwdriver or the like. In such a case, when removing the screw, an operator cuts the screw head with a sander, a file, or the like, or removes the screw with a nail. However, in the case of a sander, a file, or the like, portions other than the screw head remain on the plate or the like. Further, in the case of nail removal, the screw portion is biting into a plate or the like, so it is not easy to pull out the screw. Therefore, for example, by using an electric screw tightening / loosening tool with an attachment as disclosed in Patent Document 1, the screw can be removed more easily and quickly.

特開２００２−６６９４３号公報JP-A-2002-66943

ところで、ねじは板等に隙間なくしっかりと締め付けられていることが多い。特許文献１のようなアタッチメントでは、先端に厚みがあるため、板等とねじ頭の間にアタッチメントを挿入するのは難しい。そのため、ねじ頭部の溝が汚れや錆び等で詰まったり、ドライバー等でつぶれてしまったりした場合にも、より容易かつ迅速にねじを撤去する方法が求められている。   By the way, the screw is often firmly fastened to a plate or the like without any gap. In the attachment as in Patent Literature 1, it is difficult to insert the attachment between the plate or the like and the screw head because the tip has a thickness. Therefore, even when the groove of the screw head is clogged with dirt or rust or crushed by a screwdriver or the like, a method for removing the screw more easily and quickly is required.

本発明の目的は、ねじ頭部の溝が汚れや錆び等で詰まったり、ドライバー等の使用でつぶれてしまったりした場合にも、より容易かつ迅速にねじを撤去するための工具を提供することにある。   An object of the present invention is to provide a tool for easily and quickly removing a screw even when a groove in a screw head is clogged with dirt or rust, or is crushed by use of a screwdriver or the like. It is in.

本発明は、一端部が開口しており、前記一端部がねじ頭部の周縁を挟持する筒状の挟持部と、前記挟持部の他端部から延びた、ドライバーと接続する接続部とを有し、前記挟持部の前記一端部の内表面が先端に向かってテーパー状に広がっているとともに、前記一端部が先鋭であり、前記一端部の内表面にねじ頭部を接触させることで前記挟持部がねじ頭部を挟持することを特徴とするねじ除去用の工具である。   According to the present invention, one end portion is open, the one end portion includes a cylindrical holding portion that holds the periphery of the screw head, and a connection portion that extends from the other end portion of the holding portion and connects to a driver. Having, while the inner surface of the one end of the holding portion is tapered toward the tip, the one end is sharp, and the screw head is brought into contact with the inner surface of the one end by the screw head. A screw removing tool, wherein the holding portion holds the screw head.

本発明の工具によると、挟持部の一端部の内表面がテーパー状に広がっているとともに、一端部が先鋭である。このため、挟持部の一端部をねじ部と板等との間に差し込みやすい。よって、挟持部の一端部をねじ部と板等との間に差し込んで一端部の内表面にねじ頭部を接触させることで、挟持部にねじ頭部を挟持させてねじ頭部を掴ませやすい。その状態でドライバーを回転させることで、容易かつ迅速にねじを撤去することができる。   According to the tool of the present invention, the inner surface of one end of the holding portion is tapered and the one end is sharp. For this reason, it is easy to insert one end of the holding portion between the screw portion and the plate or the like. Therefore, by inserting one end of the holding part between the screw part and the plate or the like and bringing the screw head into contact with the inner surface of the one end, the screw head is held by the holding part and the screw head is grasped. Cheap. By turning the screwdriver in this state, the screw can be easily and quickly removed.

また、本発明は、前記挟持部の内表面に突起部を有することが好ましい。これによると、突起部でねじ頭部を掴んで支持しやすい。よって、容易かつ迅速にねじを撤去することができる。   Further, in the present invention, it is preferable that a projection is provided on an inner surface of the holding portion. According to this, the screw head is easily grasped and supported by the projection. Therefore, the screw can be easily and quickly removed.

本発明の一実施形態に係る、ねじ除去用の工具の斜視図である。1 is a perspective view of a screw removing tool according to an embodiment of the present invention. 図１の工具におけるＩＩ−ＩＩ線断面図である。FIG. 2 is a sectional view taken along line II-II of the tool in FIG. 1. 図１の工具におけるＩＩＩ−ＩＩＩ線断面図である。FIG. 3 is a sectional view taken along line III-III of the tool in FIG. 1. 図１の工具の使用図である。FIG. 2 is a use view of the tool of FIG. 1.

以下、本発明の一実施形態に係るねじ除去用の工具１（以下、工具１とする。）について、図１〜図４を用いて説明する。工具１は、挟持部１０及び接続部２０を有し、金属で形成されている。なお、以下において、図１に示すように、工具１の長尺方向を前後方向、長尺方向と直交する一方向を左右方向、左右方向及び前後方向の両方向と直交する方向を上下方向という。これらの方向は本実施形態の説明のために設定されているに過ぎず、工具１が常にこれらの方向に従った状態である必要はない。   Hereinafter, a screw removal tool 1 (hereinafter, referred to as a tool 1) according to an embodiment of the present invention will be described with reference to FIGS. The tool 1 has a holding portion 10 and a connection portion 20 and is formed of metal. In the following, as shown in FIG. 1, the long direction of the tool 1 is referred to as a front-rear direction, and one direction perpendicular to the long direction is referred to as a left-right direction, and a direction perpendicular to both the left-right direction and the front-rear direction is referred to as a vertical direction. These directions are merely set for the description of the present embodiment, and the tool 1 does not need to always be in a state following these directions.

挟持部１０は円筒状の構造をした台部１１と、台部１１の前端から前方に延びた本体部１２を備えている。本体部１２の外表面は、台部１１の外表面に対して、挟持部１０の中心軸Ｃに向かって凹んでいる。本体部１２は、前端が開口した円筒状の概略形状をしている。本体部１２は、円筒部１３及びテーパー部１４を備えている。円筒部１３は、台部１１の前端から延びている。円筒部１３の内径は、台部１１の内径より大きい。テーパー部１４は、円筒部１３の前端１３ａから前方に延びており、前方に向かって開口している。テーパー部１４の内表面は、図１及び図２に示すように、円筒部１３の前端１３ａの内表面から前方の開口端１４ａに向かってテーパー状に広がっている。また、テーパー部１４は先鋭である。なお、本発明で言う「一端部」とは、円筒部１３の前端部及びテーパー部１４の全体を含む部分に対応する。   The holding portion 10 includes a base 11 having a cylindrical structure, and a main body 12 extending forward from a front end of the base 11. The outer surface of the main body 12 is recessed toward the center axis C of the holding portion 10 with respect to the outer surface of the base 11. The main body 12 has a substantially cylindrical shape with an open front end. The main body 12 has a cylindrical portion 13 and a tapered portion 14. The cylindrical portion 13 extends from the front end of the base 11. The inner diameter of the cylindrical portion 13 is larger than the inner diameter of the base 11. The tapered portion 14 extends forward from the front end 13a of the cylindrical portion 13 and opens forward. As shown in FIGS. 1 and 2, the inner surface of the tapered portion 14 is tapered from the inner surface of the front end 13a of the cylindrical portion 13 toward the front open end 14a. Further, the tapered portion 14 is sharp. The “one end” in the present invention corresponds to a portion including the front end of the cylindrical portion 13 and the entire tapered portion 14.

図２及び図３に示すように、円筒部１３の内表面には、６つの突起部１５が形成されている。突起部１５は、円筒部１３の前端から後端まで延びている。また、突起部１５は、高さ方向が前後方向に沿った三角錐状の概略形状をしている。突起部１５は、図３に示すように、中心軸Ｃを中心とした周方向に関して等間隔に配置されている。突起部１５は、中心軸Ｃと直交する断面が二等辺三角形の概略形状である。この二等辺三角形は、頂点（突起部１５の先端縁）が中心軸Ｃに向くように配置されている。６つの突起部１５の底面の頂点は、台部１１の内表面１１ａと上下方向及び左右方向に同じ位置にある。   As shown in FIGS. 2 and 3, six protrusions 15 are formed on the inner surface of the cylindrical portion 13. The protrusion 15 extends from the front end to the rear end of the cylindrical portion 13. The projection 15 has a generally triangular pyramid shape in which the height direction extends in the front-rear direction. As shown in FIG. 3, the protrusions 15 are arranged at regular intervals in the circumferential direction around the center axis C. The cross section of the protrusion 15 perpendicular to the central axis C has a roughly isosceles triangle shape. The isosceles triangle is arranged such that the apex (the tip edge of the projection 15) faces the central axis C. The vertices of the bottom surfaces of the six protrusions 15 are located at the same position in the vertical and horizontal directions as the inner surface 11 a of the base 11.

図１に示すように、接続部２０は六角柱状であり、台部１１の後端部に固定されている。接続部２０は、上下方向及び左右方向の両方に関して上記端部の中心の位置から後方に向かって延びている。接続部２０は、後述するドライバー１００の回転部１１０に取り外し可能に挿入される。   As shown in FIG. 1, the connecting portion 20 has a hexagonal column shape and is fixed to the rear end of the base 11. The connecting portion 20 extends rearward from the center position of the end in both the vertical and horizontal directions. The connecting portion 20 is removably inserted into a rotating portion 110 of the driver 100 described later.

工具１はドライバー１００に接続して用いられる。ドライバー１００には、従来公知のインパクトドライバーが使用される。図４に示すように、ドライバー１００は、回転部１１０と本体部１２０を有している。回転部１１０には、工具１の接続部２０を挿入可能な挿入穴が形成されている。本体部１２０は、図示されていない電源スイッチ、回転部１１０の回転スイッチ、及びその回転方向の切替スイッチを有している。本体部１２０の一端部に回転部１１０が設けられている。   The tool 1 is used by being connected to a driver 100. As the driver 100, a conventionally known impact driver is used. As shown in FIG. 4, the driver 100 has a rotating unit 110 and a main unit 120. The rotating portion 110 has an insertion hole into which the connecting portion 20 of the tool 1 can be inserted. The main body unit 120 has a power switch (not shown), a rotation switch of the rotation unit 110, and a switch for changing the rotation direction. The rotating section 110 is provided at one end of the main body section 120.

ねじ２００には、従来公知の皿ねじが使用される。皿ねじのほか、鍋ねじ、トラスねじ、丸ねじ、平ねじ、低頭ねじ、コンクリートビス等従来公知のねじが使用される。ねじ頭部２１０の径は、円筒部１３の開口端１３ａの径よりも、若干小さい。   As the screw 200, a conventionally known countersunk screw is used. In addition to flathead screws, conventionally known screws such as pan screws, truss screws, round screws, flat screws, low-head screws, and concrete screws are used. The diameter of the screw head 210 is slightly smaller than the diameter of the open end 13a of the cylindrical portion 13.

次に、図４を参照しつつ、上述の実施形態に係る工具１の使用方法について説明する。
ドライバー１００の回転部１１０に接続部２０を挿入することで、工具１をドライバー１００に取り付ける。 Next, a method of using the tool 1 according to the above-described embodiment will be described with reference to FIG.
The tool 1 is attached to the driver 100 by inserting the connecting part 20 into the rotating part 110 of the driver 100.

次に、板にねじ込まれたねじ２００のねじ頭部２１０と板との間に、テーパー部１４の前端から挟持部１０を差し込む。そして、例えば、突起部１５の先端縁にねじ頭部２１０を接触させることで、挟持部１０にねじ頭部２１０の周縁を挟持させる。   Next, the holding portion 10 is inserted from the front end of the tapered portion 14 between the screw head 210 of the screw 200 screwed into the plate and the plate. Then, for example, by bringing the screw head 210 into contact with the leading edge of the protrusion 15, the holding portion 10 causes the periphery of the screw head 210 to be held.

次に、ドライバー１００を下方のねじ２００に向かって押さえ付けつつ、電動ドライバー１００の電源スイッチを入れ、切替スイッチ及び回転スイッチを操作して回転部１１０を一方向に回転させることで、回転部１１０に固定した工具１を一方向に回転させて、ねじ２００を緩めていく。このようにして、ねじ２００を板から除去する。   Next, while pressing the screwdriver 100 toward the screw 200 below, the power switch of the electric screwdriver 100 is turned on, and the changeover switch and the rotation switch are operated to rotate the rotation unit 110 in one direction. Is rotated in one direction, and the screw 200 is loosened. In this way, the screw 200 is removed from the plate.

以上説明した実施形態によると、挟持部１０の前端部にあるテーパー部１４の内表面がテーパー状に広がっているとともに、テーパー部１４が先鋭である。このため、挟持部１０を、ねじ頭部２１０と板との間に差し込みやすい。よって、挟持部１０のテーパー部１４をねじ頭部２１０と板との間に差し込んで６つの突起部１５をねじ頭部２１０に接触させることで、挟持部１０にねじ頭部２１０の周縁を挟持させてねじ頭部２１０を掴ませやすい。そして、その状態でドライバーを回転させることで、容易かつ迅速にねじを撤去することができる。また、突起部１５の中心軸Ｃと直交する断面において、二等辺三角形の概略形状の中心軸Ｃに向かって配置された頂点（突起部１５の先端縁）が、ねじ頭部２１０を掴んで支持しやすい。よって、容易かつ迅速にねじ２００を撤去することができる。   According to the above-described embodiment, the inner surface of the tapered portion 14 at the front end of the holding portion 10 is spread in a tapered shape, and the tapered portion 14 is sharp. For this reason, it is easy to insert the holding portion 10 between the screw head 210 and the plate. Therefore, by inserting the tapered portion 14 of the holding portion 10 between the screw head 210 and the plate and bringing the six protrusions 15 into contact with the screw head 210, the holding portion 10 holds the periphery of the screw head 210. Then, the screw head 210 can be easily grasped. Then, by turning the driver in this state, the screw can be easily and quickly removed. Further, in a cross section orthogonal to the central axis C of the projection 15, a vertex (a tip edge of the projection 15) arranged toward the central axis C of the approximate shape of the isosceles triangle holds the screw head 210 and is supported. It's easy to do. Therefore, the screw 200 can be easily and quickly removed.

＜変形例＞
以上は、本発明の好適な実施形態についての説明であるが、本発明は上述の実施形態に限られるものではなく、課題を解決するための手段に記載された範囲の限りにおいて様々な変更が可能なものである。 <Modification>
The above is a description of the preferred embodiment of the present invention. However, the present invention is not limited to the above-described embodiment, and various changes may be made within the scope described in the means for solving the problem. It is possible.

例えば、上述の実施形態では、突起部１５が円筒部１３の内表面に形成されている。しかし、テーパー部１４に形成されていてもよいし、円筒部１３及びテーパー部１４の両方に形成されていてもよい。   For example, in the above-described embodiment, the protrusion 15 is formed on the inner surface of the cylindrical portion 13. However, it may be formed on the tapered portion 14, or may be formed on both the cylindrical portion 13 and the tapered portion 14.

上述の実施形態では、突起部１５とねじ頭部２１０を接触させることで、挟持部１０にねじ頭部２１０を挟持させる。しかし、テーパー部１４とねじ頭部２１０を接触させることでねじ頭部２１０を挟持させてもよい。   In the above-described embodiment, the screw head 210 is held by the holding unit 10 by bringing the protrusion 15 into contact with the screw head 210. However, the screw head 210 may be pinched by bringing the tapered portion 14 into contact with the screw head 210.

また、上述の実施形態では、ドライバー１００にインパクトドライバーを用いている。しかし、ドリルドライバーや手動のドライバーでもよい。この場合、接続部２０の代わりに、ドリルドライバーや手動のドライバーの回転部に挿入可能な形状を有する接続部が工具１に設けられる。   In the above embodiment, an impact driver is used as the driver 100. However, a drill driver or a manual driver may be used. In this case, instead of the connecting portion 20, a connecting portion having a shape that can be inserted into a rotating portion of a drill driver or a manual driver is provided on the tool 1.

また、上述の実施形態では、６つの突起部１５を有しているが、７つ以上でも５つ以下でもよいし、なくともよい。   In the above-described embodiment, six protrusions 15 are provided. However, the number may be seven or more, five or less, or not.

また、上述の実施形態では、頭部の平面形状が円形のねじに対して工具１が使用されているが、六角ボルト等、頭部の平面形状が円形以外の形状を有する固定具に対して工具１が使用されてもよい。   Further, in the above-described embodiment, the tool 1 is used for a screw whose head has a circular planar shape. However, for a fixing tool such as a hexagon bolt, the planar shape of the head has a shape other than circular. Tool 1 may be used.

１ ねじ除去用の工具
１０ 挟持部
１３ 円筒部
１４ テーパー部
１５ 突起部
２０ 接続部
１００ ドライバー
２１０ ねじ頭部 DESCRIPTION OF SYMBOLS 1 Screw removing tool 10 Holding part 13 Cylindrical part 14 Tapered part 15 Protrusion part 20 Connection part 100 Driver 210 Screw head

本発明は、一端部が開口しており、前記一端部が、板等に固定されたねじ頭部の周縁を挟持する筒状の挟持部と、前記挟持部の他端部から延びた、ドライバーと接続する接続部とを有し、前記挟持部の前記一端部が、内表面が前端に向かってテーパー状に広がったテーパー部を有しているとともに、前記テーパー部が前方に向かって先鋭であり、前記挟持部の内表面に、前端が前記テーパー部の前端より後方に配置されると共に、前記テーパー部の前端に向かうほど先細りに形成された突起部を有し、前記テーパー部が板等とねじ頭部の間に差し込まれた状態で前記一端部の内表面にねじ頭部を接触させることで前記挟持部がねじ頭部を挟持することを特徴とするねじ除去用の工具である。 The present invention provides a driver, wherein one end is open, the one end is a tubular holding portion for holding a peripheral edge of a screw head fixed to a plate or the like, and the other end of the holding portion is extended from a driver. and a connecting portion connecting with said one end of the clamping portion, together has a tapered portion whose inner surface widened in a tapered shape toward the front end, a sharp the tapered portion toward the front A front end is disposed behind the front end of the tapered portion on the inner surface of the holding portion, and the protrusion has a protrusion tapered toward the front end of the tapered portion, and the tapered portion is a plate or the like. A screw removing tool characterized in that the screw head is brought into contact with the inner surface of the one end portion while being inserted between the screw head and the screw head, so that the holding portion holds the screw head.

また、突起部でねじ頭部を掴んで支持しやすい。よって、容易かつ迅速にねじを撤去することができる。 In addition, it is easy to support grasp the screw head in a collision caused part. Therefore, the screw can be easily and quickly removed.

Claims (2)

一端部が開口しており、前記一端部がねじ頭部の周縁を挟持する筒状の挟持部と、
前記挟持部の他端部から延びた、ドライバーと接続する接続部とを有し、
前記挟持部の前記一端部の内表面が先端に向かってテーパー状に広がっているとともに、前記一端部が先鋭であり、前記一端部の内表面にねじ頭部を接触させることで前記挟持部がねじ頭部を挟持することを特徴とするねじ除去用の工具。 One end portion is open, the one end portion is a cylindrical holding portion for holding the periphery of the screw head,
A connection portion extending from the other end of the holding portion and connected to a driver,
The inner surface of the one end portion of the holding portion is tapered toward the tip, and the one end portion is sharp, and the holding portion is brought into contact with a screw head on the inner surface of the one end portion. Screw removal tool characterized by holding the screw head. 前記挟持部の内表面に突起部を有することを特徴とする請求項１に記載のねじ除去用の工具。   The screw removing tool according to claim 1, further comprising a protrusion on an inner surface of the holding portion.
JP2018138321A 2018-07-24 2018-07-24 Tool for screw removal Active JP6532991B1 (en)

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Publication number Priority date Publication date Assignee Title
CN110253499A (en) * 2019-07-08 2019-09-20 镇江市凯越工具有限公司 It is a kind of to clamp disconnected screw with quickly removing device
CN111098254A (en) * 2019-12-20 2020-05-05 四川希望汽车职业学院 Special tool for disassembling socket head cap screws
CN110961859B (en) * 2019-12-27 2024-03-29 广西玉柴机器股份有限公司 Device and method for repairing fracture of connecting bolt of engine cylinder cover and cylinder body

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