JP4131302B2

JP4131302B2 - Reinforced jack

Info

Publication number: JP4131302B2
Application number: JP24889998A
Authority: JP
Inventors: 敬三川端; 啓一阿部; 四郎河崎; 敏小島; 達治高井
Original assignee: 岡部株式会社; 那覇鋼材株式会社
Priority date: 1998-09-03
Filing date: 1998-09-03
Publication date: 2008-08-13
Anticipated expiration: 2018-09-03
Also published as: JP2000080653A

Description

【０００１】
【発明の属する技術分野】
この発明は、Ｈ型鋼のフランジ及びウェブの補強を行なう補強ジャッキに関する。
【０００２】
【従来の技術】
例えば壁または柱等を建設するために地を掘って根切りを行ない、この根切りわきの土砂の崩れを防止するために山留め板が施工され、この山留め板の腹起しに例えばＨ型鋼が用いられる。
【０００３】
このＨ型鋼は、例えば図１３に示すように、Ｈ型鋼１００のフランジ１００ａとウエブ１００ｂ部分にスチフナと言われる、鉄板１０１を溶接して、補強していた。
【０００４】
また、転用タイプとしてはジャッキがあり、図１４に示すように、ジャッキ１１０は、ねじ鉄筋１１０ａを支柱として用い、両端部１１０ｂ、１１０ｃをＨ型鋼１００のフランジ１００ａに係止し補強している。
【０００５】
【発明が解決しようとする課題】
ところで、図１３に示すものでは、鉄板１０１をＨ型鋼１００に溶接するのに手間がかかり、また溶接技術を要し、しかも溶接であるために転用ができない。また、図１４に示すものでは、取付けのためにねじ鉄筋１１０ａを回転して高さを調節するのであるが、ねじ鉄筋１１０ａは断面が小判型であるため、スパナ掛けは９０°回転しないと反対側に差し込めなく、作業面積が広くなり、例えば障害物があると作業性が悪い。
【０００６】
また、同様な転用タイプの補強ジャッキとして、図１５に示すような楔形式のものがあるが、このような補強ジャッキ１２０では、楔１２０ａに抜け方向の外力が当たった場合、また、振動等により楔１２０ａが抜ける恐れがあるので、品質として問題がある。
【０００７】
この発明は、かかる点に鑑みてなされたもので、転用可能で、作業性が良く、強度があり、しかも確実に固定でき安定性がある補強ジャッキを提供することを目的としている。
【０００８】
【課題を解決するための手段】
前記課題を解決し、かつ目的を達成するために、この発明は、以下のように構成した。
【０００９】
請求項１記載の発明は、
『筒部の端部にＨ型鋼の一端のフランジ端部に設置できるＬ形の座面を有する筒部材と、軸部の端部に前記Ｈ型鋼の他端のフランジ端部に設置できるＬ形の座面を有する支持部材とを有し、
前記筒部材の筒部に前記支持部材の軸部を挿入して軸方向に移動可能であり、
前記支持部材の軸部に挿入されて前記軸方向と直交する方向に移動可能で前記筒部材の筒部に形成された当接面と前記支持部材の軸部に形成された当接面との間に配置されるパイプ状楔と、このパイプ状楔を前記軸方向と直交する方向に移動させる調節部材とを有し、
前記調節部材は、前記パイプ状楔に前記軸方向と直交する方向に貫通して螺着されたボルトで構成され、このボルトの回動で先端部が前記支持部材の軸部に当接して前記パイプ状楔を引っ張り前記軸方向と直交する方向に移動させ、
前記パイプ状楔により前記筒部材と前記支持部材とが軸方向に移動して広がり前記Ｈ型鋼の両フランジ端部間に当接して設置して補強可能に構成されることを特徴とする補強ジャッキ。』である。
【００１０】
この請求項１記載の発明によれば、筒部材の筒部と支持部材の軸部とが軸方向に移動可能であり、パイプ状楔を軸方向と直交する方向に移動させることで、筒部材と支持部材が軸方向に移動して広がりＨ型鋼の両フランジ端部間に当接して設置して補強することができ、作業性が良く、強度があり、しかも確実に固定でき安定性がある。また、ボルトの回動で先端部が支持部材の軸部に当接してパイプ状楔を引っ張り軸方向と直交する方向に移動させることができ、ボルトによる簡単な構造で、しかも確実にパイプ状楔を移動させてパイプ状楔により筒部材と支持部材とが軸方向に移動して広がりＨ型鋼の両フランジ端部間に当接して設置して補強することができ、作業性が良く、しかも確実に固定でき安定性がある。
【００１１】
請求項２記載の発明は、
『前記筒部材の筒部に前記軸方向と直交する方向に貫通して形成された孔と前記支持部材の軸部に前記軸方向と直交する方向に貫通して形成された軸方向に長い孔とを連結して抜け止めを行なう抜け止め部材を有することを特徴とする請求項１記載の補強ジャッキ。』である。
【００１２】
この請求項２記載の発明によれば、筒部材の筒部と支持部材の軸部とが抜け止め部材により連結され、筒部材と支持部材とが別々になることがなく、作業性がよく、保管、管理も容易である。
【００１３】
請求項３記載の発明は、
『前記筒部材の筒部及び／又は前記支持部材の当接面と、前記パイプ状楔との間に、対応する前記Ｈ型鋼の大きさに併せて配置されるスペーサを有することを特徴とする請求項１記載の補強ジャッキ。』である。
【００１４】
この請求項３記載の発明によれば、スペーサを用いることで、Ｈ型鋼の大きさに併せて容易に対応することができ、一層汎用性がある。
【００２３】
【発明の実施の形態】
以下、この発明の補強ジャッキの実施の形態を、図面に基づいて詳細に説明する。先ず、補強ジャッキを、図１乃至図３に示す実施の形態について説明する。図１は補強ジャッキをＨ型鋼の両フランジ端部間に設置した状態の平面図、図２は強ジャッキをＨ型鋼の両フランジ端部間に設置した状態の側面図、図３は図１のＩＩＩ−ＩＩＩ線に沿う断面図である。
【００２４】
補強ジャッキ１は、例えば山留め板の腹起しに用いられるＨ型鋼２を補強するものであり、筒部材３、支持部材４及びパイプ状楔５を有している。筒部材３は、筒部３ａの一端部にＨ型鋼２の一端のフランジ端部２ａに設置できるＬ形の座面３ｂを有し、他端部にパイプ状楔５のテーパ面に当接するテーパ面３ｃを有している。支持部材４は、軸部４ａの端部にＨ型鋼２の他端のフランジ端部２ｂに設置できるＬ形の座面４ｂを有している。筒部材３の筒部３ａに支持部材４の軸部４ａが挿入され、筒部３ａと軸部４ａとが軸方向に移動可能である。
【００２５】
パイプ状楔５は、支持部材４の軸部４ａに軸方向と直交する方向に移動可能に挿通され、筒部材３の筒部３ａと支持部材４の頭部４ｃとの間に配置される。パイプ状楔５は、断面長方形のパイプ状に形成され、長辺部５ａと短辺部５ｂとの間に筒部３ａのテーパ面３ｃに当接するテーパ面５ｃと、頭部４ｃのストレート面４ｄに当接するストレート面５ｄを有している。
【００２６】
パイプ状楔５の短辺部５ｂには、軸方向と直交する方向に移動させる調節部材Ａが設けられ、この調節部材Ａは、パイプ状楔５に貫通して螺着されたボルト６で構成される。このボルト６の回動で先端部６ａが支持部材４の軸部４ａに当接してパイプ状楔５を引っ張り軸方向と直交する方向に移動させ、これにより筒部材３と支持部材４が広がる。
【００２７】
このようにボルト６の回動で先端部６ａが支持部材４の軸部４ａに当接してパイプ状楔５を引っ張り軸方向と直交する方向に移動させることができ、ボルト６による簡単な構造で、しかも確実にパイプ状楔５を移動させて、Ｈ型鋼２の両フランジ端部２ａ、２ｂ間に設置して補強することができ、作業性が良く、しかも確実に固定でき安定性がある。また、パイプ状楔５をボルト６の回動により、引くことにより取り付けるので、従来の楔をハンマーにて叩く方法と比較して、ボルトの締め付けトルクを管理することにより、ジャッキ自体のＨ型鋼のフランジに対する取付け強度を一定にすることができる。
【００２８】
また、ボルト６を回動するので、例えばスパナの合わせ方が、ねじ鉄筋を支柱としたものと比較して、角度が自由になり狭い場所での作業でもしやすく、作業性がよい。
【００２９】
筒部材３にはピン孔３ｅが形成され、また支持部材４には軸方向に長いピン孔４ｅが形成され、抜け止め部材Ｂを構成するスプリングピン７をピン孔３ｅ及びピン孔４ｅに挿入して連結する。このように筒部材３の筒部３ａと支持部材４の軸部４ａとが抜け止め部材Ｂを構成するスプリングピン７により連結され、筒部材３と支持部材４とが別々になることがなく、作業性がよく、保管、管理も容易である。
【００３０】
なお、支持部材４の頭部４ｃにテーパ面を形成し、筒部材３の筒部３ａにストレート面を形成し、パイプ状楔５のテーパ面５ｃを頭部４ｃのテーパ面に当接するようにしてもよい。また、パイプ状楔の両面をテーパとしてもよい。
【００３１】
さらに、例えば、筒部材３、支持部材４及びパイプ状楔５を鋳鋼で製造した場合は、製品の個々部分の求められる強度に応じた厚さ加工でき、また溶接がないので、シンプルな形状が得られた。また、鋳鋼としては、オーステンパ球状黒鉛鋳鉄を採用したので、強度が高く粘りのある製品になった。
【００３２】
次に、他の実施の形態の補強ジャッキを、図４乃至図９に示す。図４は補強ジャッキをＨ型鋼の両フランジ端部間に設置した状態の平面図、図５は補強ジャッキをＨ型鋼の両フランジ端部間に設置した状態の側面図、図６は図４のVI-VI線に沿う断面図である。図７は筒部材を示し、図７（ａ）は平面図、図７（ｂ）は図７（ａ）のｂ−ｂ線に沿う断面図、図７（ｃ）は側面図、図７（ｄ）は図７（ｃ）の右側面図である。図８は支持部材を示し、図８（ａ）は平面図、図８（ｂ）は側面図、図８（ｃ）は図８（ｂ）の左側面図である。図９はパイプ状楔を示し、図９（ａ）は平面図、図９（ｂ）は図９（ａ）の側面図、図９（ｃ）は図９（ｃ）の底面図である。
【００３３】
この実施の形態の補強ジャッキ１は、図１乃至図３に示す実施の形態と同じ構成を同じ符号を付して説明を省略する。補強ジャッキ１の筒部材３には、筒部３ａのテーパ面３ｃが形成される部分３ｆを厚肉に形成し、接触面圧を大きくしている。また、筒部３ａの端にボス部３ｇが形成され、このボス部３ｇの孔部３ｈに安全吊り具を取り付けることができるようにしている。さらに、筒部３ａの中央にピン孔３ｅが形成されている。
【００３４】
支持部材４は、軸部４ａの頭部４ｃにボス部４ｆが形成され、このボス部４ｆの孔部４ｇに安全吊り具を取り付けることができるようにしている。軸部４ａには、切欠き凹部４ｈが形成され、この切欠き凹部４ｈに筒部３ａのピン孔３ｅから挿通されたスプリングピン７が位置し、筒部材３と支持部材４とが別々になることがないようにしている。また、軸部４ａには、軸方向に溝部４ｉが形成され、軽量化されている。パイプ状楔５は、短辺部５ｂを厚肉にして補強部５ｅが形成されている。この補強部５ｅに雌螺子５ｆが形成され、この雌螺子５ｆにボルト６が螺着されている。
【００３５】
さらに、他の実施の形態の補強ジャッキを、図１０に示す。図１０は補強ジャッキをＨ型鋼の両フランジ端部間に設置した状態の平面図である。この実施の形態の補強ジャッキ１は、図１乃至図３に示す実施の形態と同じ構成を同じ符号を付して説明を省略する。補強ジャッキ１は、支持部材４の頭部４ｃと、パイプ状楔５との間に、対応するＨ型鋼２の大きさに併せてスペーサ１０が配置される。
【００３６】
なお、支持部材４の頭部４ｃにテーパ面を形成し、筒部材３の筒部３ａにストレート面を形成し、パイプ状楔５のテーパ面を頭部４ｃのテーパ面に当接するようにしてもよく、この場合には、筒部材３の筒部３ａとパイプ状楔５との間に、スペーサ１０が配置される。このようにスペーサ１０を用いることで、Ｈ型鋼２の大きさ併せて容易に対応することができ、一層汎用性がある。
【００３７】
さらに、参考例の形態の補強ジャッキを、図１１に示す。図１１は補強ジャッキをＨ型鋼の両フランジ端部間に設置した状態を示す図であり、図１１（ａ）は平面図、図１１（ｂ）は側面図である。この実施の形態の補強ジャッキ１は、図１乃至図３に示す実施の形態と同じ構成を同じ符号を付して説明を省略する。
【００３８】
この参考例の形態の補強ジャッキ１は、筒部材３の筒部３ａと支持部材４の軸部４ａとが軸方向に移動可能であり、板状楔２０が支持部材４の軸部４ａに形成された軸方向のガイド孔４ｊと筒部材３の筒部３ａに形成された軸方向のガイド孔３ｊとに貫通して配置されている。
【００３９】
補強ジャッキ１には、板状楔２０を軸方向と直交する方向に移動させる調節部材Ｃが設けられ、この調節部材Ｃは、筒部材３の筒部３ａに設けた支持部３ｋに螺着して挿通されたボルト２１で構成されている。ボルト２１は、先端部２１ａが板状楔２０に回動可能に設けられている。このボルト２１の回動で板状楔２０を引っ張りまたは押して軸方向と直交する方向に移動させるように構成されている。
【００４０】
このようにボルト２１の回動で板状楔２０を押して軸方向と直交する方向に移動させ、Ｈ型鋼２の両フランジ端部間に設置して補強することができる。また、補強ジャッキ１をＨ型鋼２から取り外す時には、ボルト２１を反対方向へ回動することで板状楔２０を引っ張り、両フランジ端部間から容易に外すことができ作業性が良い。また、板状楔２０をボルト２１の回動により、引っ張ったり押すことにより取り付けるので、従来の楔をハンマーにて叩く方法と比較して、ジヤッキ自体のＨ型鋼のフランジに対する取付け強度、ボルトの締め付けトルクを一定にすることができる。
【００４１】
さらに、他の参考例の形態の補強ジャッキを、図１２に示す。図１２は補強ジャッキをＨ型鋼の両フランジ端部間に設置した状態を示す図であり、図１２（ａ）は平面図、図１２（ｂ）は側面図である。この実施の形態の補強ジャッキ１は、図１１に示す参考例の形態と同じ構成を同じ符号を付して説明を省略する。
【００４２】
この参考例の形態の補強ジャッキ１では、調節部材Ｃが筒部材３の筒部３ａに設けた支持部３ｋに回動可能に支持したナット部材３０と、このナット部材３０に螺着して挿通され先端部を板状楔２０に固定したボルト３１とから構成されている。
【００４３】
このようにナット部材３０の回動で板状楔２０を引っ張り軸方向と直交する方向に移動させ、Ｈ型鋼２の両フランジ端部間に設置して補強することができる。また、補強ジャッキ１をＨ型鋼２から取り外す時には、ナット部材３０を反対方向へ回動することで板状楔２０を押し、両フランジ端部間から容易に外すことができ作業性が良い。
【００４４】
【発明の効果】
前記したように、請求項１記載の発明では、筒部材の筒部と支持部材の軸部とが軸方向に移動可能であり、パイプ状楔を軸方向と直交する方向に移動させることで、筒部材と支持部材が軸方向に移動して広がりＨ型鋼の両フランジ端部間に当接して設置して補強することができ、作業性が良く、強度があり、しかも確実に固定でき安定性がある。また、ボルトの回動で先端部が支持部材の軸部に当接してパイプ状楔を引っ張り軸方向と直交する方向に移動させることができ、ボルトによる簡単な構造で、しかも確実にパイプ状楔を移動させてパイプ状楔により筒部材と支持部材とが軸方向に移動して広がりＨ型鋼の両フランジ端部間に当接して設置して補強することができ、作業性が良く、しかも確実に固定でき安定性がある。
【００４５】
請求項２記載の発明では、筒部材の筒部に軸方向と直交する方向に貫通して形成された孔と支持部材の軸部に軸方向と直交する方向に貫通して形成された軸方向に長い孔とを連結して抜け止めを行なう抜け止め部材を有し、筒部材の筒部と支持部材の軸部とが抜け止め部材により連結されることで、筒部材と支持部材とが別々になることがなく、作業性がよく、保管、管理も容易である。
【００４６】
請求項３記載の発明では、筒部材の筒部及び／又は支持部材の当接面と、パイプ状楔との間に、対応するＨ型鋼の大きさに併せて配置されるスペーサを有し、スペーサを用いることで、Ｈ型鋼の大きさに併せて容易に対応することができ、一層汎用性がある。
【図面の簡単な説明】
【図１】補強ジャッキをＨ型鋼の両フランジ端部間に設置した状態の平面図である。
【図２】強ジャッキをＨ型鋼の両フランジ端部間に設置した状態の側面図である。
【図３】図１のＩＩＩ−ＩＩＩ線に沿う断面図である。
【図４】補強ジャッキをＨ型鋼の両フランジ端部間に設置した状態の平面図である。
【図５】強ジャッキをＨ型鋼の両フランジ端部間に設置した状態の側面図である。
【図６】図４のVI-VI線に沿う断面図である。
【図７】筒部材を示す図である。
【図８】支持部材を示す図である。
【図９】パイプ状楔を示す図である。
【図１０】補強ジャッキをＨ型鋼の両フランジ端部間に設置した状態の平面図である。
【図１１】補強ジャッキをＨ型鋼の両フランジ端部間に設置した状態を示す図である。
【図１２】補強ジャッキをＨ型鋼の両フランジ端部間に設置した状態を示す図である。
【図１３】従来のＨ型鋼を鉄板を溶接して補強する図である。
【図１４】従来のＨ型鋼を補強ジャッキにより補強する図である。
【図１５】従来のＨ型鋼を補強ジャッキにより補強する図である。
【符号の説明】
１補強ジャッキ
２Ｈ型鋼
２ａ、２ｂフランジ端部
３筒部材
３ａ筒部
４支持部材
４ａ軸部
４ｃ頭部
５パイプ状楔
Ａ調節部材[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a reinforcing jack for reinforcing a flange and a web of an H-shaped steel.
[0002]
[Prior art]
For example, in order to construct a wall or a pillar, etc., the ground is excavated and rooted, and a retaining plate is constructed to prevent the crushing of the sand and sand. Used.
[0003]
For example, as shown in FIG. 13, the H-shaped steel is reinforced by welding an iron plate 101 called a stiffener to the flange 100 a and web 100 b portions of the H-shaped steel 100.
[0004]
As a diversion type, there is a jack. As shown in FIG. 14, the jack 110 uses a threaded reinforcing bar 110 a as a support, and both ends 110 b and 110 c are locked to the flange 100 a of the H-shaped steel 100 to be reinforced.
[0005]
[Problems to be solved by the invention]
By the way, in what is shown in FIG. 13, it takes time to weld the iron plate 101 to the H-shaped steel 100, requires a welding technique, and cannot be diverted because it is welding. Further, in the case shown in FIG. 14, the height of the screw rebar 110a is adjusted by rotating the screw rebar 110a for mounting. However, since the cross section of the screw rebar 110a is oval, the spanner hook does not rotate 90 °. The work area becomes large, and for example, if there are obstacles, workability is poor.
[0006]
Also, as a similar diversion type reinforcing jack, there is a wedge type as shown in FIG. 15. In such a reinforcing jack 120, when an external force in the pulling direction is applied to the wedge 120a, vibration or the like occurs. Since the wedge 120a may come off, there is a problem in quality.
[0007]
The present invention has been made in view of this point, and an object of the present invention is to provide a reinforcing jack that can be diverted, has good workability, has strength, can be securely fixed, and is stable.
[0008]
[Means for Solving the Problems]
In order to solve the above-described problems and achieve the object, the present invention is configured as follows.
[0009]
The invention according to claim 1
“A cylindrical member having an L-shaped seating surface that can be installed at the flange end of one end of the H-shaped steel at the end of the cylindrical portion, and an L-shape that can be installed at the flange end of the other end of the H-shaped steel at the end of the shaft. A support member having a seating surface of
The shaft portion of the support member is inserted into the tube portion of the tube member and is movable in the axial direction.
An abutment surface that is inserted into the shaft portion of the support member and is movable in a direction orthogonal to the axial direction and formed on the tube portion of the tube member, and an abutment surface formed on the shaft portion of the support member A pipe-shaped wedge disposed between and an adjustment member for moving the pipe-shaped wedge in a direction perpendicular to the axial direction;
The adjusting member is configured by a bolt that is threaded through the pipe wedge in a direction perpendicular to the axial direction, and the tip of the bolt abuts on the shaft portion of the support member by the rotation of the bolt. Pull the pipe-shaped wedge and move it in the direction perpendicular to the axial direction ,
Reinforcing jack, characterized in that said supporting member and the tubular member by the pipe-shaped wedge is reinforced configured to be able to set up contact between both flange end of the move in the axial direction spreads the H-shaped steel . ].
[0010]
According to the invention of claim 1 wherein, Ri movable der and the shaft portion of the support member cylindrical portion of the cylindrical member in the axial direction, is moved in the direction perpendicular to pipes shaped wedge to the axial direction, The cylindrical member and the supporting member move in the axial direction and spread, and can be installed and reinforced by abutting between both flange ends of the H-shaped steel. Good workability, strength, and reliable fixation There is. In addition, the rotation of the bolt allows the tip portion to abut the shaft portion of the support member so that the pipe-shaped wedge can be moved in the direction perpendicular to the pulling axial direction. the move can be reinforced by installing the pipe-shaped wedge and the cylindrical member and the support member abuts between both flange end of the H-section steel spread moves axially, good workability, and reliably It can be fixed to and has stability.
[0011]
The invention according to claim 2
“ A hole formed in the cylindrical portion of the cylindrical member so as to pass through in a direction perpendicular to the axial direction and a hole formed in the axial portion of the supporting member so as to penetrate in a direction orthogonal to the axial direction. The reinforcing jack according to claim 1, further comprising a retaining member that prevents the retaining member from being connected to each other. ].
[0012]
According to the second aspect of the present invention, the cylindrical portion of the cylindrical member and the shaft portion of the supporting member are connected by the retaining member, the cylindrical member and the supporting member are not separated, and workability is good. Easy to store and manage.
[0013]
The invention described in claim 3
A contact surface of "the tubular member of the tubular portion and / or the support member, between the pipe-shaped wedge, and having a spacer which is arranged according to the size of the corresponding H-shaped steel The reinforcing jack according to claim 1. ].
[0014]
According to the invention described in claim 3, by using the spacer, it can be easily accommodated in accordance with the size of the H-shaped steel, and is more versatile.
[0023]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the reinforcing jack according to the present invention will be described below in detail with reference to the drawings. First, a description will be given of an embodiment shown in FIGS. 1 is a plan view of a state in which a reinforcing jack is installed between both flange end portions of the H-shaped steel, FIG. 2 is a side view of a state in which a strong jack is installed between both flange end portions of the H-shaped steel, and FIG. It is sectional drawing which follows an III-III line.
[0024]
The reinforcing jack 1 reinforces an H-shaped steel 2 used, for example, for raising a mountain retaining plate, and includes a tubular member 3, a supporting member 4, and a pipe-like wedge 5. The cylindrical member 3 has an L-shaped seating surface 3b that can be installed on the flange end 2a at one end of the H-shaped steel 2 at one end of the cylindrical portion 3a, and a taper that contacts the tapered surface of the pipe-like wedge 5 at the other end. It has a surface 3c. The support member 4 has an L-shaped seating surface 4b that can be installed on the flange end 2b of the other end of the H-shaped steel 2 at the end of the shaft portion 4a. The shaft portion 4a of the support member 4 is inserted into the tube portion 3a of the tube member 3, and the tube portion 3a and the shaft portion 4a are movable in the axial direction.
[0025]
The pipe-shaped wedge 5 is inserted into the shaft portion 4 a of the support member 4 so as to be movable in a direction orthogonal to the axial direction, and is disposed between the tube portion 3 a of the tube member 3 and the head portion 4 c of the support member 4. The pipe-shaped wedge 5 is formed in a pipe shape having a rectangular cross section, and has a tapered surface 5c that contacts the tapered surface 3c of the cylindrical portion 3a between the long side portion 5a and the short side portion 5b, and a straight surface 4d of the head portion 4c. It has a straight surface 5d that comes into contact with.
[0026]
The short side portion 5b of the pipe-shaped wedge 5 is provided with an adjusting member A that is moved in a direction orthogonal to the axial direction, and this adjusting member A is constituted by a bolt 6 that penetrates and is screwed into the pipe-shaped wedge 5. Is done. As the bolt 6 rotates, the tip 6a abuts against the shaft 4a of the support member 4 to move the pipe-shaped wedge 5 in a direction perpendicular to the pulling shaft direction, thereby expanding the cylindrical member 3 and the support member 4.
[0027]
In this way, by rotating the bolt 6, the tip end portion 6 a abuts on the shaft portion 4 a of the support member 4, and the pipe-like wedge 5 can be moved in a direction perpendicular to the pulling axis direction. In addition, the pipe-shaped wedge 5 can be reliably moved and installed between the flange end portions 2a and 2b of the H-shaped steel 2 to be reinforced, so that the workability is good and the pin can be reliably fixed and stable. Moreover, since the pipe-shaped wedge 5 is attached by pulling by rotating the bolt 6, the bolt tightening torque is controlled as compared with the conventional method of hitting the wedge with a hammer, so that the H-shaped steel of the jack itself can be controlled. The attachment strength to the flange can be made constant.
[0028]
In addition, since the bolt 6 is rotated, for example, the method of aligning the spanner is free from the angle and is easy to work in a narrow place as compared with the method using the screw rebar as a support column, and the workability is good.
[0029]
A pin hole 3e is formed in the cylindrical member 3, and a pin hole 4e which is long in the axial direction is formed in the support member 4. A spring pin 7 constituting the retaining member B is inserted into the pin hole 3e and the pin hole 4e. Connect. Thus, the cylindrical portion 3a of the cylindrical member 3 and the shaft portion 4a of the supporting member 4 are connected by the spring pin 7 constituting the retaining member B, so that the cylindrical member 3 and the supporting member 4 are not separated, Good workability, easy storage and management.
[0030]
A tapered surface is formed on the head portion 4c of the support member 4, a straight surface is formed on the cylindrical portion 3a of the cylindrical member 3, and the tapered surface 5c of the pipe-like wedge 5 is brought into contact with the tapered surface of the head portion 4c. May be. Further, both sides of the pipe-shaped wedge may be tapered.
[0031]
Furthermore, for example, when the cylindrical member 3, the support member 4 and the pipe-shaped wedge 5 are manufactured from cast steel, the thickness can be processed according to the required strength of each part of the product, and there is no welding, so a simple shape is obtained. Obtained. Moreover, since austempered spheroidal graphite cast iron was adopted as the cast steel, the product became strong and sticky.
[0032]
Next, a reinforcing jack according to another embodiment is shown in FIGS. 4 is a plan view of a state in which a reinforcing jack is installed between both flange end portions of the H-shaped steel, FIG. 5 is a side view of a state in which a reinforcing jack is installed between both flange end portions of the H-shaped steel, and FIG. It is sectional drawing which follows a VI-VI line. 7 shows a cylindrical member, FIG. 7 (a) is a plan view, FIG. 7 (b) is a cross-sectional view taken along line bb of FIG. 7 (a), FIG. 7 (c) is a side view, and FIG. d) is a right side view of FIG. 8 shows a support member, FIG. 8 (a) is a plan view, FIG. 8 (b) is a side view, and FIG. 8 (c) is a left side view of FIG. 8 (b). 9 shows a pipe-shaped wedge, FIG. 9A is a plan view, FIG. 9B is a side view of FIG. 9A, and FIG. 9C is a bottom view of FIG. 9C.
[0033]
In the reinforcing jack 1 of this embodiment, the same components as those of the embodiment shown in FIGS. The cylindrical member 3 of the reinforcing jack 1 is formed with a thick portion 3f where the tapered surface 3c of the cylindrical portion 3a is formed to increase the contact surface pressure. A boss 3g is formed at the end of the cylindrical portion 3a, and a safety suspender can be attached to the hole 3h of the boss 3g. Further, a pin hole 3e is formed at the center of the cylindrical portion 3a.
[0034]
The support member 4 has a boss portion 4f formed on the head portion 4c of the shaft portion 4a, and a safety suspender can be attached to the hole portion 4g of the boss portion 4f. The shaft portion 4a is formed with a notch recess 4h, and the spring pin 7 inserted from the pin hole 3e of the tube portion 3a is located in the notch recess 4h, so that the tube member 3 and the support member 4 are separated. I'm trying not to get it. Further, the shaft portion 4a is formed with a groove portion 4i in the axial direction to reduce the weight. The pipe-shaped wedge 5 is formed with a reinforcing portion 5e with the short side portion 5b being thick. A female screw 5f is formed in the reinforcing portion 5e, and a bolt 6 is screwed to the female screw 5f.
[0035]
Furthermore, the reinforcement jack of other embodiment is shown in FIG. FIG. 10 is a plan view showing a state in which the reinforcing jack is installed between both flange end portions of the H-shaped steel. In the reinforcing jack 1 of this embodiment, the same components as those of the embodiment shown in FIGS. Reinforcing jack 1 includes a head portion 4c of the supporting member 4, between the pipe-shaped wedge 5, the spacer 10 in accordance with the magnitude of the corresponding H-shaped steel 2 is arranged.
[0036]
A taper surface is formed on the head portion 4c of the support member 4, a straight surface is formed on the tube portion 3a of the tube member 3, and the taper surface of the pipe-shaped wedge 5 is brought into contact with the taper surface of the head portion 4c. In this case, the spacer 10 is disposed between the cylindrical portion 3 a of the cylindrical member 3 and the pipe-shaped wedge 5. By using the spacer 10 in this way, it is possible to easily cope with the size of the H-shaped steel 2 and it is more versatile.
[0037]
Furthermore, the reinforcement jack of the form of a reference example is shown in FIG. 11A and 11B are views showing a state in which the reinforcing jack is installed between both flange end portions of the H-shaped steel. FIG. 11A is a plan view and FIG. 11B is a side view. In the reinforcing jack 1 of this embodiment, the same components as those of the embodiment shown in FIGS.
[0038]
In the reinforcing jack 1 in the form of this reference example , the cylindrical portion 3 a of the cylindrical member 3 and the shaft portion 4 a of the support member 4 are movable in the axial direction, and a plate-like wedge 20 is formed on the shaft portion 4 a of the support member 4. The axial guide hole 4j and the axial guide hole 3j formed in the cylindrical portion 3a of the cylindrical member 3 are disposed so as to penetrate.
[0039]
The reinforcing jack 1 is provided with an adjusting member C that moves the plate-like wedge 20 in a direction orthogonal to the axial direction. The adjusting member C is screwed to a support portion 3k provided on the cylindrical portion 3a of the cylindrical member 3. It is comprised with the volt | bolt 21 inserted through. The bolt 21 is provided with a tip 21 a so as to be rotatable on the plate-like wedge 20. The rotation of the bolt 21 causes the plate-like wedge 20 to be pulled or pushed to move in a direction perpendicular to the axial direction.
[0040]
In this manner, the plate-like wedge 20 can be pushed by the rotation of the bolt 21 and moved in the direction perpendicular to the axial direction, and can be installed and reinforced between both flange end portions of the H-shaped steel 2. Further, when the reinforcing jack 1 is removed from the H-shaped steel 2, the plate-like wedge 20 can be pulled by turning the bolt 21 in the opposite direction, so that it can be easily removed from between the end portions of both flanges. Further, since the plate-like wedge 20 is attached by pulling or pushing the bolt 21, the attachment strength of the jack itself to the flange of the H-shaped steel and the tightening of the bolt are compared with the conventional method of hitting the wedge with a hammer. Torque can be made constant.
[0041]
Furthermore, the reinforcing jack in the form of another reference example, illustrated in FIG. 12. 12A and 12B are views showing a state in which the reinforcing jack is installed between both flange end portions of the H-shaped steel. FIG. 12A is a plan view and FIG. 12B is a side view. The reinforcement jack 1 of this embodiment attaches the same code | symbol to the structure same as the form of the reference example shown in FIG. 11, and abbreviate | omits description.
[0042]
In the reinforcing jack 1 in the form of this reference example , the adjusting member C is rotatably supported by the supporting portion 3k provided on the cylindrical portion 3a of the cylindrical member 3, and the nut member 30 is screwed and inserted into the nut member 30. And a bolt 31 having a tip end fixed to the plate-like wedge 20.
[0043]
In this way, the plate-like wedge 20 can be moved in the direction perpendicular to the direction of the pulling axis by the rotation of the nut member 30, and can be installed and reinforced between both flange end portions of the H-shaped steel 2. Further, when removing the reinforcing jack 1 from the H-shaped steel 2, the plate-like wedge 20 can be pushed by turning the nut member 30 in the opposite direction, so that it can be easily removed from the ends of both flanges, and the workability is good.
[0044]
【The invention's effect】
As described above, in the first aspect of the present invention, Ri movable der and the shaft portion of the support member cylindrical portion of the cylindrical member in the axial direction, to move in the direction perpendicular to pipes shaped wedge to the axial direction in, can be cylindrical member and the support member is reinforced by installing contact between both flange end of the H-section steel spread moves axially, good workability, it is strong, yet can be securely fixed There is stability. In addition, the rotation of the bolt allows the tip portion to abut the shaft portion of the support member so that the pipe-shaped wedge can be moved in the direction perpendicular to the pulling axial direction. the move can be reinforced by installing the pipe-shaped wedge and the cylindrical member and the support member abuts between both flange end of the H-section steel spread moves axially, good workability, and reliably It can be fixed to and has stability.
[0045]
According to the second aspect of the present invention, the hole formed through the cylindrical portion of the cylindrical member in the direction orthogonal to the axial direction and the axial direction formed through the axial portion of the support member in the direction orthogonal to the axial direction. has a long hole and the member retaining perform retained by connecting, in Rukoto connected by retaining member and the shaft portion of the cylindrical portion of the cylindrical member supporting member, it is separate and the tubular support member It is easy to work and store and manage.
[0046]
In the invention of claim 3, wherein the abutment surface of the cylindrical portion and / or support members of the cylindrical member, between the pipe-shaped wedge, having a spacer which is arranged in conjunction with the size of the corresponding H-shaped steel, by using a spacer, it is possible to easily cope in accordance with the magnitude of the H-shaped steel, there is more versatility.
[Brief description of the drawings]
FIG. 1 is a plan view of a state in which a reinforcing jack is installed between both flange end portions of an H-shaped steel.
FIG. 2 is a side view of a state in which a strong jack is installed between both flange end portions of an H-shaped steel.
3 is a cross-sectional view taken along line III-III in FIG.
FIG. 4 is a plan view of a state in which a reinforcing jack is installed between both flange end portions of H-shaped steel.
FIG. 5 is a side view of a state in which a strong jack is installed between both flange end portions of an H-shaped steel.
6 is a cross-sectional view taken along line VI-VI in FIG.
FIG. 7 is a view showing a cylindrical member.
FIG. 8 is a view showing a support member.
FIG. 9 is a view showing a pipe-shaped wedge.
FIG. 10 is a plan view of a state in which a reinforcing jack is installed between both flange end portions of H-shaped steel.
FIG. 11 is a view showing a state in which a reinforcing jack is installed between both flange end portions of an H-shaped steel.
FIG. 12 is a view showing a state in which a reinforcing jack is installed between both flange end portions of H-shaped steel.
FIG. 13 is a diagram for reinforcing a conventional H-shaped steel by welding an iron plate.
FIG. 14 is a diagram in which a conventional H-shaped steel is reinforced by a reinforcing jack.
FIG. 15 is a diagram in which a conventional H-shaped steel is reinforced by a reinforcing jack.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Reinforcement jack 2 H-shaped steel 2a, 2b Flange end part 3 Cylinder member 3a Cylinder part 4 Support member 4a Shaft part 4c Head part 5 Pipe-shaped wedge A adjustment member

Claims

A cylindrical member having an L-shaped seating surface that can be installed at the flange end of one end of the H-shaped steel at the end of the cylindrical portion, and an L-shaped member that can be installed at the flange end of the other end of the H-shaped steel at the end of the shaft A support member having a seating surface,
The shaft portion of the support member is inserted into the tube portion of the tube member and is movable in the axial direction.
An abutment surface that is inserted into the shaft portion of the support member and is movable in a direction orthogonal to the axial direction and formed on the tube portion of the tube member, and an abutment surface formed on the shaft portion of the support member A pipe-shaped wedge disposed between and an adjustment member for moving the pipe-shaped wedge in a direction perpendicular to the axial direction;
The adjusting member is configured by a bolt that is threaded through the pipe wedge in a direction perpendicular to the axial direction, and the tip of the bolt abuts on the shaft portion of the support member by the rotation of the bolt. Pull the pipe-shaped wedge and move it in the direction perpendicular to the axial direction ,
Reinforcing jack, characterized in that said supporting member and the tubular member by the pipe-shaped wedge is reinforced configured to be able to set up contact between both flange end of the move in the axial direction spreads the H-shaped steel .

A hole formed through the cylindrical portion of the cylindrical member in a direction perpendicular to the axial direction, and a long hole in the axial direction formed through the axial portion of the support member in a direction orthogonal to the axial direction. The reinforcing jack according to claim 1, further comprising a retaining member that prevents the retaining by connecting the members.

According to the contact surface of the tubular portion and / or said support member of said tubular member, between the pipe-shaped wedge, characterized in that it has spacers which are arranged according to the size of the corresponding H-shaped steel Item 1. A reinforcing jack according to item 1.