JP3431840B2

JP3431840B2 - Box hardware removal tool

Info

Publication number: JP3431840B2
Application number: JP25599998A
Authority: JP
Inventors: 正文曽木
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-08-25
Filing date: 1998-08-25
Publication date: 2003-07-28
Anticipated expiration: 2018-08-25
Also published as: JP2000061855A

Description

【発明の詳細な説明】【０００１】【発明の属する技術分野】本発明はコンクリートパネル
を固定する箱金物を取り外すための取り外し具に関する
ものである。【０００２】【従来の技術】コンクリートパネルを固定するために従
来良く使用されている箱金物の一例を図４、図５に示
し、図４は箱金物設置部の垂直断面図、図５はその水平
断面図である。各図において、コンクリートパネル３は
土中に立設された縦梁４に沿って位置しており、コンク
リートパネル３の板面には適宜位置に通孔３１（図４、
図５では一箇所のみ示す）が設けられて、これら通孔３
１にそれぞれ箱金物２が設けられている。すなわち、箱
金物２は一端に係止片２２を設けた棒体２３を有し、係
止片２２は傘状に開いた断面を有してその外周端面がコ
ンクリートパネル３の内側面（各図の左側面）に当接し
ている。棒体２３は係止片２２の中央に一端が埋設固定
されるとともに、通孔３１内に挿通された棒体２３の他
端部外周にはねじ部２３１が形成されている。【０００３】箱金物２の本体２１は一定幅の長板を略Ｕ
字形（図４）に屈曲成形したもので、開放部を外側（図
４右方）へ向けて水平姿勢で位置し、中央部の板面に設
けたウエルドナット２４によって上記棒体２３のねじ部
２３１にねじ込み固定されている。本体２１の上下の脚
部２１１，２１２は連結材２１３で結合されており、こ
れら脚部２１１，２１２間に、縦梁４に接して水平方向
へ延びる横梁５が挿通されている。脚部２１１，２１２
にはそれぞれ上下の対向位置に長手方向へ延びる長孔２
１３，２１４が形成されており、これら長孔２１３，２
１４内に上方から楔体６が挿通されて横梁５の側面に当
接し、これにより、コンクリートパネル３が縦梁４に圧
接させられて位置決め固定される。【０００４】【発明が解決しようとする課題】ところで、コンクリー
トパネル３の内側にコンクリート打ちを行った後、箱金
物２の本体２１を取り外してコンクリートパネル３をコ
ンクリート壁の表面から取り去る必要があるが、本体２
１の取り外しは従来、専ら本体２１の脚部２１１，２１
２を手で掴んで回転させることによって、ウエルドナッ
ト２４を棒体２３のねじ部２３１から離脱させている。
しかし、これでは作業効率が悪いという問題がある。【０００５】そこで本発明はこのような課題を解決する
もので、箱金物の本体の取り外しを簡易かつ迅速に行う
ことができる箱金物の取り外し具を提供することを目的
とする。【０００６】【課題を解決するための手段】上記目的を達成するた
め、本発明では、コンクリートパネル（３）を貫通する
棒体（２３）を有し、棒体（２３）の一端をこれに設け
た係止片（２２）によってコンクリートパネル（３）の
内側面に係止するとともに、棒体（２３）の他端に形成
したねじ部（２３１）に略Ｕ字形に成形された本体（２
１）をその中央でねじ込み固定して、上下に位置する本
体（２１）の脚部（２１１，２１２）間に横梁（５）を
通すとともに各脚部（２１１，２１２）に設けた通孔
（２１３，２１４）内に楔体（６）を挿通して、楔体
（６）を横梁（５）に当接させることによりコンクリー
トパネル（３）を縦梁（４）に固定するようにした箱金
物（２）において、箱金物の取り外し具（１）は、箱金
物本体（２１）の脚部（２１１，２１２）に装着される
装着体（１１）と、装着体（１１）の中央に設けられて
ドリル工具（７）にチャッキングされる軸体（１５）と
を具備し、上記装着体（２１）は一端開放の箱形状に成
形されてその端面中央に軸体（１５）が立設され、装着
体（２１）を本体脚部（２１１，２１２）を覆うように
その開放口より当該本体脚部（２１１，２１２）へ差込
み装着する。【０００７】本発明においては、装着体を箱金物の脚部
に装着し、その軸体をドリル工具にチャッキングして、
ドリル工具を回転作動させると、装着体と箱金物の本体
が一体に回転して棒体のねじ部から上記本体が離脱させ
られる。このようにして、ドリル工具を使用してその回
転力により箱金物本体を簡易かつ迅速に取り外すことが
できる。また、本発明によれば、本体脚部へ装着可能
な装着体を簡易な構造で実現することができる。【０００８】【０００９】なお、上記カッコ内の符号は、後述する実
施形態に記載の具体的手段との対応関係を示すものであ
る。【００１０】【発明の実施の形態】図１には取り外し具の側面図を示
し、図２にはその平面図を示す。取り外し具１は装着体
１１を有し、この装着体１１は金属板材を一方へ開放す
る箱状に成形したものである。そして、装着体１１の上
下の側壁１２，１３は開放方向へ向けて対向間隔が漸次
大きくなっており、この結果、装着体１１の箱内空間は
開放方向へ向けて上下の間隔が広がっている。装着体１
１の上下方向の短辺の長さｄ１（図１）と長辺の長さｄ
２はこれらの間に箱金物本体２１（図４）の上下の脚部
２１１，２１２の間隔Ｄ１が入るように設定されてい
る。また、装着体１１の幅ｄ３（図２）は箱金物本体２
１（図５）の幅Ｄ２よりもやや大きくしてある。装着体
１１の端板１４の中心には軸体１５が突設してあり、こ
の軸体１５は市販の木工用電動ドリルにチャッキング可
能な形状としてある。なお、装着体１１の板面には適当
位置に円形開口１１１，１１２が設けられて重量軽減の
ための肉盗みとしてある。【００１１】このような取り外し具１で箱金物２を取り
外す場合には、図３に示すように、楔体６を取り去って
横梁５を上下の脚部２１１，２１２間から抜いた状態
で、電動ドリル７の先端にチャッキングされた軸体１５
に支持された装着体１１を、箱金物本体２１の上下の脚
部２１１，２１２を覆うようにこれらに差し込む。そし
て、電動ドリル７を起動して装着体１１を半時計方向へ
回転させると、ウエルドナット２４が棒体２３のねじ部
２３１から抜け出て装着体２１が棒体２３から外れる。【００１２】【発明の効果】以上のように、本発明の箱金物の取り外
し具によれば、箱金物の本体の取り外しを簡易かつ迅速
に行うことができる。Description: BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to a removal tool for removing a metal box for fixing a concrete panel. 2. Description of the Related Art FIGS. 4 and 5 show an example of a box metal fitting which is conventionally often used for fixing a concrete panel. FIG. 4 is a vertical sectional view of a box metal fitting installation portion, and FIG. It is a horizontal sectional view. In each of the drawings, the concrete panel 3 is located along a vertical beam 4 erected in the soil, and a through hole 31 (FIG.
Only one location is shown in FIG. 5).
1 are provided with box hardware 2 respectively. That is, the metal box 2 has a bar 23 having a locking piece 22 at one end. The locking piece 22 has an umbrella-shaped cross section, and its outer peripheral end face is the inner surface of the concrete panel 3 (see each figure). On the left side). One end of the rod 23 is embedded and fixed at the center of the locking piece 22, and a thread 231 is formed on the outer periphery of the other end of the rod 23 inserted into the through hole 31. The main body 21 of the metal box 2 has a long plate of a predetermined width substantially U-shaped.
It is bent and formed into a V-shape (FIG. 4), is positioned in a horizontal posture with the open portion facing outward (to the right in FIG. 4), and is formed by a weld nut 24 provided on a central plate surface. 231 is screwed and fixed. The upper and lower legs 211, 212 of the main body 21 are connected by a connecting member 213, and a horizontal beam 5 extending in the horizontal direction in contact with the vertical beam 4 is inserted between the legs 211, 212. Legs 211, 212
Are elongated holes 2 extending in the longitudinal direction at upper and lower opposing positions, respectively.
13, 214 are formed, and these long holes 213, 2
The wedge body 6 is inserted from above into the inside 14 and abuts against the side surface of the cross beam 5, whereby the concrete panel 3 is pressed against the vertical beam 4 and fixed in position. [0004] By the way, after concrete is cast inside the concrete panel 3, it is necessary to remove the main body 21 of the box fitting 2 and remove the concrete panel 3 from the surface of the concrete wall. , Body 2
Conventionally, only the legs 211 and 21 of the main body 21 can be removed.
The weld nut 24 is detached from the threaded portion 231 of the rod 23 by grasping and rotating the hand 2.
However, this has a problem that work efficiency is poor. SUMMARY OF THE INVENTION The object of the present invention is to solve such a problem, and an object of the present invention is to provide a box hardware removal tool which can easily and quickly remove the body of the box hardware. In order to achieve the above object, according to the present invention, there is provided a rod (23) penetrating a concrete panel (3), and one end of the rod (23) is connected to the rod (23). The main body (2) which is locked to the inner surface of the concrete panel (3) by the provided locking piece (22), and is formed in a substantially U-shape with a screw portion (231) formed at the other end of the rod body (23).
1) is screwed and fixed at the center thereof, and the cross beam (5) is passed between the legs (211 and 212) of the main body (21) positioned above and below, and the through holes (211) provided in each leg (211 and 212). 213, 214), the wedge body (6) is inserted into the box, and the wedge body (6) is brought into contact with the cross beam (5) to fix the concrete panel (3) to the vertical beam (4). In the hardware (2), the box metal removal tool (1) is provided at the center of the mounting body (11) mounted on the legs (211 and 212) of the box metal body (21). And a shaft body (15) that is attached to a drill tool (7), and the mounting body (21) is formed in a box shape with one end open.
Shaft (15) is erected at the center of the end face and mounted.
So that the body (21) covers the body legs (211 and 212)
Insert the main body legs (211 and 212) through the opening
Only. In the present invention , the mounting body is mounted on the leg of the box hardware, and the shaft body is chucked with a drill tool.
When the drill tool is rotated, the mounting body and the main body of the box hardware rotate integrally, and the main body is detached from the threaded portion of the rod. In this way, the box hardware main body can be easily and quickly removed by the rotational force of the drill tool. Also, according to the present invention, it can be attached to the main body legs.
A simple mounting structure can be realized with a simple mounting body. [0009] The reference numerals in parentheses indicate the correspondence with specific means described in the embodiments described later. FIG. 1 is a side view of a removal tool, and FIG. 2 is a plan view of the same. The removal tool 1 has a mounting body 11, and this mounting body 11 is formed by forming a metal plate into a box shape open to one side. The upper and lower side walls 12 and 13 of the mounting body 11 are gradually increased in facing distance in the opening direction, and as a result, the space in the box of the mounting body 11 is widened in the opening direction. . Wearing body 1
The length d1 of the short side in the vertical direction of FIG.
2 is set so that a distance D1 between the upper and lower legs 211 and 212 of the box hardware main body 21 (FIG. 4) is inserted therebetween. The width d3 (FIG. 2) of the mounting body 11 is
1 (FIG. 5) is slightly larger than the width D2. A shaft 15 protrudes from the center of the end plate 14 of the mounting body 11, and has a shape that can be chucked by a commercially available electric drill for woodworking. In addition, circular openings 111 and 112 are provided at appropriate positions on the plate surface of the mounting body 11 so as to reduce the weight. When the box fitting 2 is to be detached with the detaching tool 1 as shown in FIG. 3, the wedge body 6 is removed and the cross beam 5 is pulled out from between the upper and lower legs 211 and 212. Shaft 15 chucked at the tip of drill 7
Is inserted into these so as to cover the upper and lower legs 211, 212 of the box hardware 21. Then, when the electric drill 7 is activated to rotate the mounting body 11 in the counterclockwise direction, the weld nut 24 comes out of the threaded portion 231 of the rod 23 and the mounting body 21 comes off the rod 23. As described above, according to the box hardware removal tool of the present invention, the body of the box metal body can be easily and quickly removed.

【図面の簡単な説明】【図１】取り外し具の側面図である。【図２】取り外し具の平面図である。【図３】箱金物の取り外しを行っている状態を示す垂直
断面図である。【図４】箱金物設置部の垂直断面図である。【図５】箱金物設置部の水平断面図である。【符号の説明】１…取り外し具、１１…装着体、１５…軸体、２…箱金
物、２１…本体、２１１，２１２…脚部、２１３，２１
４…通孔、２２…係止片、２３…棒体、２３１…ねじ
部、３…コンクリートパネル、５…横梁、６…楔体、７
…ドリル工具。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view of a removal tool. FIG. 2 is a plan view of a removal tool. FIG. 3 is a vertical sectional view showing a state where a box hardware is being removed. FIG. 4 is a vertical sectional view of a box hardware installation portion. FIG. 5 is a horizontal sectional view of a box hardware installation part. [Description of Signs] 1 ... Removal tool, 11 ... Mounted body, 15 ... Shaft body, 2 ... Box hardware, 21 ... Main body, 211, 212 ... Legs, 213, 21
DESCRIPTION OF SYMBOLS 4 ... Through-hole, 22 ... Locking piece, 23 ... Bar body, 231 ... Screw part, 3 ... Concrete panel, 5 ... Cross beam, 6 ... Wedge body, 7
... Drill tools.

Claims

(57) [Claim 1] A rod having a rod penetrating the concrete panel, one end of which is locked to the inner surface of the concrete panel by a locking piece provided on the rod, A main body formed into a substantially U-shape is screwed and fixed at the center of the screw formed at the other end of the body, and a cross beam is passed between the legs of the main body located above and below, and into the through holes provided in both legs. In a box fitting in which the concrete panel is fixed to the vertical beam by inserting the wedge body and abutting the wedge body on the horizontal beam,
A box-shaped body having a mounting body mounted on the legs of the box metal body and a shaft provided at the center of the mounting body and chucked by a drill tool , wherein the mounting body is open at one end.
And the shaft body is erected in the center of the end face,
The body is attached to the body through the opening so as to cover the body legs.
A tool for removing box hardware, which is inserted and attached to a leg .