JP7490276B1 - bar - Google Patents
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- JP7490276B1 JP7490276B1 JP2023160224A JP2023160224A JP7490276B1 JP 7490276 B1 JP7490276 B1 JP 7490276B1 JP 2023160224 A JP2023160224 A JP 2023160224A JP 2023160224 A JP2023160224 A JP 2023160224A JP 7490276 B1 JP7490276 B1 JP 7490276B1
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- 239000002023 wood Substances 0.000 claims abstract description 62
- 210000000078 claw Anatomy 0.000 claims abstract description 14
- 238000010586 diagram Methods 0.000 description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 241000587161 Gomphocarpus Species 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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Abstract
【課題】木材間に隙間がない場合でも木材を引き離して容易に釘を抜くことができるバールを提供する。【解決手段】バールは、棒状のシャフト部の一端側に前記シャフト部と垂直に取り付けられた先端の釘抜部にＶ字溝が形成されたヘッド部、及び前記シャフト部の他端側に先端が爪部であるグリップ部を有し、前記釘抜部より後側に前記ヘッド部の両側方へ突出する張出部を設け、前記爪部より下側に前記グリップ部の両側方へ突出する張出部を設け、前記ヘッド部の後側にハンマー部を設けた、ことを特徴とする。【選択図】図１[Problem] To provide a crowbar that can easily pull apart wooden pieces of wood to remove nails even when there is no gap between the pieces of wood. [Solution] The crowbar has a head portion with a V-shaped groove formed in the nail puller at the tip attached perpendicularly to the shaft portion on one end of a rod-shaped shaft portion, and a grip portion with a claw portion at the tip on the other end of the shaft portion, with overhanging portions protruding on both sides of the head portion behind the nail puller, overhanging portions protruding on both sides of the grip portion below the claw portion, and a hammer portion provided behind the head portion. [Selected Figure] Figure 1
Description
本発明は、釘を抜くためのバールに関する。 The present invention relates to a crowbar for removing nails.
バールは、木材等に打ち込まれた釘を梃（テコ）の原理を利用して引き抜くための棒状の工具であり、主に金属製で一方の先端が曲げられてＬ字状になっている。また、両端に釘抜きが付いているものや、曲げた反対側にハンマーを付けてＴ字状になっているものもある。 A crowbar is a rod-shaped tool that uses the principle of leverage to pull out nails that have been driven into wood or other materials. It is generally made of metal and one end is bent into an L shape. There are also some with a nail puller attached to both ends, and some with a hammer attached to the other end of the bent end to make a T shape.
特許文献１に記載されているように、長い釘でも面倒な準備をすることなく容易に引き抜くことができ、嵩張らず、しかも構造が単純で製造しやすい釘抜き工具の発明も開示されている。 As described in Patent Document 1, an invention has been disclosed for a nail puller that can easily pull out even long nails without complicated preparation, is not bulky, and has a simple structure that makes it easy to manufacture.
しかしながら、特許文献１に記載の釘抜き工具は、作用部の略Ｖ字形状の切り欠きに釘の頭部を掛けて、支点部を支点として、副作用部が円弧を描くように、梃の原理で柄部を後方に動かすことで釘を抜くが、木材等に釘が打ち込まれている場合、釘の頭部が木材等の上面から突出していないと釘抜き工具の略Ｖ字形状の切り欠きに掛けることはできない。そのため、釘抜き工具の尖った先端などで木材等を刳り貫いて無理矢理に釘の頭部を出した上で、略Ｖ字形状の切り欠きに掛ける等している。 However, the nail puller described in Patent Document 1 pulls out a nail by hanging the head of the nail in the roughly V-shaped notch of the working part, and using the fulcrum part as a fulcrum and moving the handle backwards using the principle of a lever so that the side part draws an arc, but when a nail is driven into wood or the like, the head of the nail cannot be hung in the roughly V-shaped notch of the nail puller unless it protrudes from the top surface of the wood or the like. For this reason, the pointed tip of the nail puller is used to carve out the wood or the like to forcibly expose the head of the nail, and then the nail can be hung in the roughly V-shaped notch.
また、下側の木材と上側の木材とを釘で留めている場合、木材間に隙間があれば、釘抜き工具の尖った先端などを挿し込んで上下に隙間を拡げながら釘を抜くこともできるが、木材間に隙間がない状態で釘を抜くことは困難である。釘抜き工具など梃の原理を利用するには、支点と作用点を確保する必要がある。 In addition, when a lower piece of wood is fastened to an upper piece of wood with a nail, if there is a gap between the pieces of wood, it is possible to insert the pointed tip of a nail puller to widen the gap vertically and remove the nail, but it is difficult to remove the nail if there is no gap between the pieces of wood. To use the principle of a lever, such as with a nail puller, it is necessary to secure a fulcrum and a point of application.
そこで、本発明は、木材間に隙間がない場合でも木材を引き離して容易に釘を抜くことができるバールを提供することを目的とする。 Therefore, the objective of the present invention is to provide a crowbar that can easily separate pieces of wood and remove nails even when there are no gaps between the pieces of wood.
上記の課題を解決するために、本発明であるバールは、棒状のシャフト部の一端側に前記シャフト部と垂直に取り付けられた先端の釘抜部にＶ字溝が形成されたヘッド部を有し、前記釘抜部より後側に前記ヘッド部の両側方へ突出する張出部を設けた、ことを特徴とする。 To solve the above problems, the crowbar of the present invention is characterized in that it has a head portion with a V-shaped groove formed in the nail puller at the tip, which is attached perpendicularly to one end of a rod-shaped shaft portion, and has overhanging portions that protrude on both sides of the head portion behind the nail puller.
前記バールにおいて、前記シャフト部の他端側に先端が爪部であるグリップ部を有し、前記爪部より下側に前記グリップ部の両側方へ突出する張出部を設けた、ことを特徴とする。 The crowbar has a grip portion with a claw at the tip on the other end of the shaft, and protrusions protruding on both sides of the grip portion are provided below the claw.
前記バールにおいて、前記ヘッド部の後側にハンマー部を設けた、ことを特徴とする。 The crowbar is characterized by having a hammer section provided behind the head section.
本発明によれば、木材間に隙間がない場合でも木材を引き離して容易に釘を抜くことができる。下側の木材と上側の木材とを釘で留めている場合、下側の木材に支点を確保し、作用点として上側の木材にヘッド部を当てることで、梃の原理を利用して容易に木材を引き離すことができる。 According to the present invention, even if there is no gap between the pieces of wood, the nail can be easily removed by pulling the pieces apart. When a nail is used to fasten a lower piece of wood to an upper piece of wood, the fulcrum is secured on the lower piece of wood, and the head of the nail is placed on the upper piece of wood as the point of action, allowing the wood to be easily pulled apart using the principle of a lever.
以下に、本発明の実施形態について図面を参照して詳細に説明する。なお、同一機能を有するものは同一符号を付け、その繰り返しの説明は省略する場合がある。 The following describes in detail an embodiment of the present invention with reference to the drawings. Components with the same functions are given the same reference numerals, and repeated explanations may be omitted.
まず、本発明であるバールの構造について説明する。図１は、バールを示す斜視図である。図２は、バールを示す側面図である。図３は、バールを示す正面図である。図４は、バールを示す底面図である。なお、バールのヘッド部において釘抜部があるほうを前、ハンマー部があるほうを後、グリップ部において爪部があるほうを上とする。 First, the structure of the crowbar of the present invention will be described. Fig. 1 is a perspective view of the crowbar. Fig. 2 is a side view of the crowbar. Fig. 3 is a front view of the crowbar. Fig. 4 is a bottom view of the crowbar. Note that the side of the crowbar head where the nail puller is located is the front, the side where the hammer is located is the rear, and the side of the grip where the claws are located is the top.
図１に示すように、バール１００は、棒状のシャフト部２００の一端側（下側）であるネック部２１０にシャフト部２００と略垂直に取り付けられた先端の釘抜部４１０にＶ字溝４１０ａが形成されたヘッド部４００、及びシャフト部２００の他端側（上側）に先端が爪部３１０であるグリップ部３００を有する。 As shown in FIG. 1, the crowbar 100 has a head portion 400 with a V-shaped groove 410a formed in a nail puller 410 at the tip, which is attached to a neck portion 210, which is one end (lower side) of a rod-shaped shaft portion 200, approximately perpendicular to the shaft portion 200, and a grip portion 300 with a claw portion 310 at the tip, at the other end (upper side) of the shaft portion 200.
バール１００は、木材に刺さった釘などを引く抜くための工具であり、主に鉄などの金属製である。先端を曲げてＬ字状にした細長い棒の短い側を作用点として釘を掛け、曲げた部分を支点として木材に当て、長い側を力点として倒すように回動させることにより、小さい力で釘を引き抜く。 The crowbar 100 is a tool used to pull out nails and other items stuck in wood, and is mainly made of metal such as iron. The tip of the long, thin rod is bent into an L-shape, and the short side of the rod is used as the point of application for hanging a nail. The bent part is placed against the wood as a fulcrum, and the long side is used as the point of force to rotate the rod, pulling it down and pulling out the nail with little force.
図２、３に示すように、シャフト部２００は、グリップ部３００とヘッド部４００を繋ぐための棒材である。上端がグリップ部３００に繋がり、下端がネック部２１０を介してヘッド部４００に繋がる。ヘッド部４００よりも長くすることで、釘を抜くために掛ける力が小さくなる。シャフト部２００の上部を手で握った場合は、そこが力点となる。 As shown in Figures 2 and 3, the shaft portion 200 is a rod that connects the grip portion 300 and the head portion 400. The upper end is connected to the grip portion 300, and the lower end is connected to the head portion 400 via the neck portion 210. By making it longer than the head portion 400, the force required to pull out a nail is reduced. When the upper portion of the shaft portion 200 is gripped with the hand, that is the point of force application.
グリップ部３００は、シャフト部２００から繋がり、力を掛けるために手で握る部分である。先端を扁平状にした爪部３１０は、上下を逆にして釘で留められた木材の間など狭い隙間に挿し込んで間隔を拡げたり、木材に打ち込まれた釘周辺を刳り貫いて釘の頭に爪部３１０を引っ掛けて釘を浮かせたりする。 The grip section 300 is connected to the shaft section 200 and is the section that is gripped by the hand to apply force. The claw section 310, which has a flattened tip, can be turned upside down and inserted into narrow gaps such as between pieces of wood fastened with nails to widen the gap, or can be used to hollow out the area around a nail driven into the wood and hook the claw section 310 onto the head of the nail to lift the nail.
ネック部２１０は、シャフト部２００とヘッド部４００を直角に近い角度で接続することで支点となる部分である。上方にシャフト部２００が延び、前方にヘッド部４００が延びる。木材に当てたときにシャフト部２００を回動させやすいように、ネック部２１０が湾曲していると良い。 The neck portion 210 serves as a fulcrum by connecting the shaft portion 200 and the head portion 400 at an angle close to a right angle. The shaft portion 200 extends upward, and the head portion 400 extends forward. It is preferable that the neck portion 210 is curved so that the shaft portion 200 can be easily rotated when it is placed against wood.
ヘッド部４００は、釘を引き抜くための力が発生する作用点となる部分である。ネック部２１０から繋がっており、釘を掛けるために先端を扁平状にして２つに先割れしたＶ字溝４１０ａを形成した釘抜部４１０を有する。 The head portion 400 is the point of action where the force required to pull out the nail is generated. It is connected to the neck portion 210 and has a nail puller portion 410 with a flattened tip and a V-shaped groove 410a split into two for hanging the nail.
図４に示すように、ヘッド部４００には、釘抜部４１０より後側（図では下側）にヘッド部４００の両側方へ突出する張出部４２０を設ける。同様に、グリップ部３００には、爪部３１０より下側にグリップ部３００の両側方へ突出する張出部３２０を設ける。 As shown in FIG. 4, the head portion 400 has overhanging portions 420 that protrude to both sides of the head portion 400 rearward (lower in the figure) from the nail puller portion 410. Similarly, the grip portion 300 has overhanging portions 320 that protrude to both sides of the grip portion 300 below the claw portion 310.
張出部４２０は、釘抜部４１０の反対側（後方）にあるネック部２１０を支点とするのが困難な場合に、ネック部２１０の代わりに支点とするために設ける。例えば、木材へ当てる箇所が横にずれている場合などである。 The protruding portion 420 is provided to serve as a fulcrum in place of the neck portion 210 when it is difficult to use the neck portion 210, which is located on the opposite side (rear) of the nail puller 410, as a fulcrum. For example, this may occur when the point where the nail is placed against the wood is shifted to the side.
また、ヘッド部４００の後側には、ハンマー部５００を設ける。ハンマー部５００は、シャフト部２００より後方に突出していても良いし、釘を抜く際の支点としやすいようになるべく突出させないようにしても良い。 A hammer portion 500 is provided behind the head portion 400. The hammer portion 500 may protrude rearward from the shaft portion 200, or may protrude as little as possible so that it can be easily used as a fulcrum when removing the nail.
次に、本発明であるバールを使用して２枚の木材に打ち込まれた釘を抜く場合を説明する。図５は、バールを使用して釘が打ち込まれた２枚の木材を引き離す状況を示す図である。図６は、バールで木材間に隙間を空けた状況を示す図である。図７は、バールを木材間に挿し込んだ状況を示す図である。図８は、バールで剥がした木材の裏側から釘の頭を出す状況を示す図である。図９は、バールで頭の浮いた釘を引き抜く状況を示す図である。 Next, we will explain the case of using a crowbar according to the present invention to remove a nail that has been driven into two pieces of wood. Figure 5 is a diagram showing how a crowbar is used to separate two pieces of wood with a nail driven into them. Figure 6 is a diagram showing how a gap has been created between the pieces of wood using a crowbar. Figure 7 is a diagram showing how a crowbar has been inserted between the pieces of wood. Figure 8 is a diagram showing how the head of a nail appears from the back side of a piece of wood that has been peeled away using a crowbar. Figure 9 is a diagram showing how a nail with a loose head is removed using a crowbar.
図５に示すように、例えば、横向きの木材１１０ｂの上に縦向きの木材１１０ａが交差するように釘１２０で留められている場合とする。釘１２０の頭は、木材１１０ａの上面（表面）と連になるように打ち込まれ、木材１１０ａと木材１１０ｂの間に隙間１３０が無い状態である。 As shown in FIG. 5, for example, a vertical piece of wood 110a is fastened by a nail 120 so that the two pieces cross over each other on top of a horizontal piece of wood 110b. The head of the nail 120 is driven into the wood so that it is in contact with the top surface (front surface) of the wood 110a, and there is no gap 130 between the wood pieces 110a and 110b.
木材１１０ａと釘１２０の間にも、木材１１０ａと木材１１０ｂの間にも、バール１１０の釘抜部４１０は、無理矢理に捻じ込まなければ入り込まない状況であり、ネック部２１０を支点として釘１２０を抜くことができない。 The nail puller 410 of the crowbar 110 cannot be inserted between the wood 110a and the nail 120, or between the wood 110a and the wood 110b, unless it is forcibly twisted in, and the nail 120 cannot be pulled out using the neck 210 as a fulcrum.
そこで、釘抜部４１０の側面を木材１１０ｂの側面に当てた上で、釘抜部４１０の上面を木材１１０ａの下面に当てるようにすると共に、張出部４２０の下面を木材１１０ｂの上面に当てるようにする。 Therefore, the side of the nail puller 410 is placed against the side of the wooden piece 110b, and the top of the nail puller 410 is placed against the bottom surface of the wooden piece 110a, while the bottom surface of the protruding part 420 is placed against the top surface of the wooden piece 110b.
図６に示すように、張出部４２０を支点、シャフト部２００を力点、釘抜部４１０を作用点として、シャフト部２００を後方に回動させると、釘１２０が少し抜けて木材１１０ａが浮き、木材１１０ｂと木材１１０ａの間に隙間１３０が生じる。 As shown in FIG. 6, when the shaft portion 200 is rotated backward with the protruding portion 420 as the fulcrum, the shaft portion 200 as the force point, and the nail puller portion 410 as the point of action, the nail 120 comes out a little, the wood 110a floats, and a gap 130 is created between the wood 110b and the wood 110a.
図７に示すように、木材１１０ｂの上面に沿って釘抜部４１０を隙間１３０に挿し込み、釘抜部４１０のＶ字溝４１０ａで釘１２０の軸を挟み込む。木材１１０ｂに当てたネック部２１０又はハンマー部５００を支点として、シャフト部２００を後方に回動させれば、木材１１０ｂから木材１１０ａが釘１２０と共に剥がされる。 As shown in FIG. 7, the nail puller 410 is inserted into the gap 130 along the top surface of the wood 110b, and the shaft of the nail 120 is clamped in the V-shaped groove 410a of the nail puller 410. When the shaft 200 is rotated backward with the neck 210 or hammer 500 in contact with the wood 110b as a fulcrum, the wood 110a is peeled off from the wood 110b together with the nail 120.
図８に示すように、木材１１０ａを裏返すと、木材１１０ａの裏面に釘１２０の軸が出ている状態である。木材１１０ａの表面で釘１２０の頭が押さえ付けられていない状態で、ハンマー部５００で釘１２０の軸を叩けば、釘１２０の頭が木材１１０ａの表面から出て浮いた状態になる。 As shown in FIG. 8, when the wooden piece 110a is turned over, the shaft of the nail 120 protrudes from the underside of the wooden piece 110a. When the shaft of the nail 120 is struck with the hammer unit 500 while the head of the nail 120 is not pressed down against the surface of the wooden piece 110a, the head of the nail 120 protrudes from the surface of the wooden piece 110a and becomes floating.
図９に示すように、木材１１０ａを表返して、木材１１０ａの表面（上面）から浮いた釘１２０の頭を釘抜部４１０のＶ字溝４１０ａに掛ける。木材１１０ａに当てたネック部２１０又はハンマー部５００を支点として、シャフト部２００を後方に回動させれば、木材１１０ａから釘１２０が引き抜かれる。 As shown in FIG. 9, the wooden piece 110a is turned over, and the head of the nail 120 that has risen above the surface (top surface) of the wooden piece 110a is hooked into the V-shaped groove 410a of the nail puller 410. The shaft 200 is rotated backward with the neck 210 or hammer 500 in contact with the wooden piece 110a as a fulcrum, and the nail 120 is pulled out of the wooden piece 110a.
本発明によれば、木材間に隙間がない場合でも木材を引き離して容易に釘を抜くことができる。下側の木材と上側の木材とを釘で留めている場合、下側の木材に支点を確保し、作用点として上側の木材にヘッド部を当てることで、梃の原理を利用して容易に木材を引き離すことができる。 According to the present invention, even if there is no gap between the pieces of wood, the nail can be easily removed by pulling the pieces apart. When a nail is used to fasten a lower piece of wood to an upper piece of wood, the fulcrum is secured on the lower piece of wood, and the head of the nail is placed on the upper piece of wood as the point of action, allowing the wood to be easily pulled apart using the principle of a lever.
以上、本発明の実施例を述べたが、これらに限定されるものではない。例えば、グリップ部に爪部がないものでも良いし、爪部にＶ字溝を形成しても良い。また、ヘッド部にハンマー部がないものでも良い。 The above are examples of the present invention, but the present invention is not limited to these. For example, the grip portion may not have a claw portion, or a V-shaped groove may be formed in the claw portion. Also, the head portion may not have a hammer portion.
１００：バール
１１０ａ：木材
１１０ｂ：木材
１２０：釘
１３０：隙間
２００：シャフト部
２１０：ネック部
３００：グリップ部
３１０：爪部
３２０：張出部
４００：ヘッド部
４１０：釘抜部
４１０ａ：Ｖ字溝
４２０：張出部
５００：ハンマー部
100: Crowbar 110a: Wood 110b: Wood 120: Nail 130: Gap 200: Shaft 210: Neck 300: Grip 310: Claw 320: Extension 400: Head 410: Nail puller 410a: V-groove 420: Extension 500: Hammer
Claims (3)
前記ネック部の前方に前記シャフト部と垂直となるように取り付けられたヘッド部と、
前記ヘッド部の先端にＶ字溝が形成された釘抜部と、
前記釘抜部より後側に前記ヘッド部の両側方へ突出するように設けられた張出部と、を有し、
交差する木材が釘で留められ木材間に隙間が無い場合に、上側の木材の下面に前記釘抜部を当て、下側の木材の上面に片方の前記張出部を当てることで、前記ネック部を支点にするのが困難な場合でも前記張出部を支点として下側の木材から上側の木材を引き離す、
ことを特徴とするバール。 A neck portion which is one end side of the rod-shaped shaft portion;
a head portion attached to the front of the neck portion so as to be perpendicular to the shaft portion;
A nail puller having a V-shaped groove formed at the tip of the head portion;
and a protruding portion provided rearward of the nail puller so as to protrude toward both sides of the head portion,
When intersecting pieces of wood are fastened together with nails and there is no gap between the pieces of wood, the nail puller is placed on the underside of the upper piece of wood and one of the protruding parts is placed on the top side of the lower piece of wood, so that even if it is difficult to use the neck part as a fulcrum, the protruding part can be used as a fulcrum to separate the upper piece of wood from the lower piece of wood.
A bar characterized by:
前記爪部より下側に前記グリップ部の両側方へ突出する張出部を設けた、
ことを特徴とする請求項１に記載のバール。 A grip portion having a claw tip is provided on the other end of the shaft portion,
A protruding portion is provided below the claw portion and protrudes to both sides of the grip portion.
2. The crowbar according to claim 1 .
ことを特徴とする請求項１に記載のバール。 A hammer portion is provided on the rear side of the head portion.
2. The crowbar according to claim 1 .
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3064107U (en) | 1999-05-20 | 1999-12-24 | 株式会社ユザワ工務店 | Iron lever |
| US20090307847A1 (en) | 2008-06-16 | 2009-12-17 | Mou-Tang Liou | Multi-function Tool |
| JP3182322U (en) | 2013-01-07 | 2013-03-21 | 武 江原 | Bar for renovation |
| CN205237989U (en) | 2015-11-27 | 2016-05-18 | 杨婧杰 | Multi -functional laborsaving claw hammer |
-
2023
- 2023-09-25 JP JP2023160224A patent/JP7490276B1/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3064107U (en) | 1999-05-20 | 1999-12-24 | 株式会社ユザワ工務店 | Iron lever |
| US20090307847A1 (en) | 2008-06-16 | 2009-12-17 | Mou-Tang Liou | Multi-function Tool |
| JP3182322U (en) | 2013-01-07 | 2013-03-21 | 武 江原 | Bar for renovation |
| CN205237989U (en) | 2015-11-27 | 2016-05-18 | 杨婧杰 | Multi -functional laborsaving claw hammer |
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