JP3646136B2

JP3646136B2 - Portable worktable

Info

Publication number: JP3646136B2
Application number: JP33561399A
Authority: JP
Inventors: 豊治千田; 雄三船渡; 英男花田; 保柄澤
Original assignee: Sumikei Nikkei Engineering Co Ltd
Current assignee: Nippon Engineering Co Ltd
Priority date: 1999-11-26
Filing date: 1999-11-26
Publication date: 2005-05-11
Anticipated expiration: 2019-11-26
Also published as: JP2001152659A

Description

【０００１】
【発明の属する技術分野】
本発明は、建築工事現場、建築物の天井や壁面などの内外装作業、電気配線作業などで使用される可搬式作業台、詳しくは、長方形状の天板に梯子状の主脚を折り畳み可能に設けた可搬式作業台の改良に関する。
【０００２】
【従来の技術】
従来、建築物などの天井、壁面などの作業には、図１７に示すように、長方形状の天板３にステップ５をそなえた梯子状の主脚４、４を設けた作業台（足場）２が使用されている。（実開平６−５６３２１号公報他）
【０００３】
作業台２は、通常、可搬式のもので、使用後は、天板３とステップ５の間に取り付けられたステイ７を屈曲部８で折り曲げて、作業台２を折り畳み、移動できるようになっている。
【０００４】
この形式の作業台は、安全上の観点から作業床面の高さが２ｍ未満のものに適用され、作業床面となる天板には滑り止めなど、安全面の措置も行われているが、天井や壁面の作業に必要なものを手に持って作業を行う場合などに、安定性を欠き、落下する事故の生じることが少なくなかった。
【０００５】
この問題を解決するために、図１８に示すように、天板３に梯子状の主脚４、４を折り畳み可能に設けた可搬式作業台２において、天板３または主脚４の上部に、昇降時の手掛けとして機能する手掛け部材６をＡ方向またはＢ方向に回動して、主脚４または天板２に沿って折り畳み可能に取付けられた可搬式作業台１が提案されている。（特許第２９８９１６６号、第２９８９１７２号公報）
【０００６】
しかしながら、このような手掛け部材を設けた作業台を使用した場合においても、内装、外装作業、電気配線作業などで、とくに上方に集中して行う作業などにおいては、足元が不注意となり易く、作業中に長方形状の天板の長辺側や短辺側から足を踏み外す事故が多く経験されており、さらに安全性の高い作業台が要求されている。
【０００７】
【発明が解決しようとする課題】
本発明は、天板に梯子状の主脚を折り畳み可能に設けた作業台における上記従来の問題点を解消するためになされたものであり、その目的は、例えば、長さが１，３００〜１，８００ｍｍ、幅が２５０〜５００ｍｍ程度の縦長の天板寸法をそなえ、高さが２ｍ以下程度の可搬式作業台において、従来の可搬式作業台の構造を大きく変えることなしに、天板に載って作業を行う場合における作業の安全性を大幅に向上させた可搬式作業台を提供することにある。
【０００８】
【課題を解決するための手段】
上記の目的を達成するための本発明の請求項１による可搬式作業台は、長方形状の天板に梯子状の主脚を折り畳み可能に設け、天板または主脚に手掛け部材を折り畳み可能に取付けた可搬式作業台において、手摺の縦桟の下部に、天板の下面部に当接する固定用部材と天板の上面に当接する板状部材を設け、該板状部材と固定用部材とにより天板の長辺側端部を挟持し、板状部材から天板にピンを挿通することにより天板の長辺側に手摺を取り付けることを特徴とする。
【０００９】
請求項２による可搬式作業台は、長方形状の天板に梯子状の主脚を折り畳み可能に設け、天板または主脚に手掛け部材を折り畳み可能に取付けた可搬式作業台において、手摺の縦桟の下部に、天板の長辺側側壁に当接する垂直部と、該垂直部から延び長辺側側壁の内方に位置する天板の長辺側中間壁が形成する溝部に嵌入する立上り部を具えた固定用部材を設けるとともに、天板の上面に当接する板状部材を設け、該板状部材と前記固定用部材により天板の長辺側端部を挟持し、板状部材と天板とをピンで結合することにより天板の長辺側に手摺を取り付けることを特徴とする。
【００１０】
請求項３による可搬式作業台は、請求項１または２において、天板の短辺側に着脱可能な端部足場を連設したことを特徴とする。
【００１１】
請求項４による可搬式作業台は、請求項１または２記載の可搬式作業台を、長方形状の天板の短辺が対向するよう複数個配置し、対向する天板の短辺間に中間足場を介設して作業台を長手方向に連結したことを特徴とする。
【００１２】
請求項５による可搬式作業台は、請求項１または２記載の可搬式作業台を、長方形状の天板の長辺が対向するよう複数個配置し、対向する天板の長辺間に中間足場を介設して作業台を幅方向に連結したことを特徴とする。
【００１３】
本発明の作業台において、天板、主脚、手掛け部材、手摺、端部足場、中間足場などの部材は、使用態様に応じて、軽量鋼材、ＦＲＰその他の材料で構成することもできるが、軽量性、耐食性、取扱い性などを考慮した場合、アルミニウム（合金を含む）の押出形材やアルミニウムの押出形材とアルミニウムの板材との組合わせで構成するのが最も好ましい。
【００１４】
【発明の実施の形態】
本発明の可搬式作業台の好ましい実施形態を以下に説明する。従来と同じ部材、共通の部材には同一の符号を付した。なお、これらの実施形態は、本発明の一実施例を示すものであり、本発明はこれらに限定されるものではない。
【００１５】
本発明における手摺の取付けの第１の形態は、図１に示すように、長方形状の天板３に梯子状の主脚４、４を折り畳み可能に設け、天板３または主脚４に手掛け部材６を折り畳み可能に取付けた可搬式作業台１において、長方形状の天板３の長辺側９に着脱可能な手摺１１を設けるものである。５は梯子状の主脚４のステップ、７は天板３とステップ５の間に取り付けられたステイ７であり、作業台１は、ステイ７を屈曲部で折り曲げることによって折り畳み、移動できるようになっている。この場合、手掛け部材６は、天板３の隅角部または主脚４の上部に取付けるのが好ましい。
【００１６】
手摺１１は、図１に示すように、天板３の両方の長辺９側に対向して設けることもできるが、壁面の作業などを行うに際し、天板３の一方の長辺側を壁面に近付けて使用するような場合においては、壁面に当接する長辺側と反対側の長辺側にのみ手摺１０を設ければよく、いずれに設けるかは作業台の使用態様に応じて選択される。
【００１７】
手摺１１の天板３の長辺９側への固定は、図２に示すように、手摺１１の横桟１１Ａから延びる縦桟１１Ｂの下部に固定用部材１３を設けることにより行われる。例えば、固定用部材１３の垂直部１３Ａを縦桟１１Ｂの下部にボルト・ナットなど（図示せず）適宜の手段で固定し、固定用部材１３の垂直部１３から延びる立上り部１３Ｂを一点鎖線で示すように天板３の下面部に当接させ、Ｌ字形金具などからなる板状部材１４を手摺１１の縦桟１１Ｂと天板３にボルト・ナットなどの手段で固着することにより行われ、手摺１１は天板３の長辺９側に着脱可能に取り付けられる。
【００１８】
手摺１１の天板３の長辺９側への他の固定方式を図３〜７に示す。図３および図６に示すように、天板３の長辺９側に、長辺側側壁９Ａと長辺側側壁９Ａから内方に位置する長辺側中間壁９Ｂを設ける。図３〜５に示すように、手摺１１の縦桟１１Ｂの下部に、天板３の長辺側側壁９Ａに当接する垂直部１３Ｃと、垂直部１３Ｃから延び天板３の長辺側中間壁９Ｂが形成する溝部１５に嵌入する立上り部１３Ｄを具えた固定用部材１３を、例えばボルト・ナットやリベットで取付けることにより設けるとともに、天板３の上面に当接するＬ字形金具などの板状部材１４を例えばボルト・ナットやリベットで取付けることにより設け、図３に示すように、板状部材１４と固定用部材１３とにより天板３の長辺側端部を挟持し、板状部材１４と天板３に穿設した孔Ｈを合わせ、この孔ＨにピンＰを挿通することにより天板３の長辺９側に手摺１１を取付ける。
【００１９】
ピンＰは、図３〜４に示すように、手摺１１の縦桟１１Ｂにワイヤーなど適宜の手段で取付けておくと便利である。手摺１１の取り外しは、ピンＰを抜くことによって行うことができる。この固定方式においては、長辺側中間壁９Ｂを天板３の長手方向に連続して形成しておくことにより、天板３の長辺９側のどの位置にも自由に手摺１１を設置することが可能となる。また、この固定方式により手摺１１を取付けた場合には、天板３に作業者が載ると天板３にかかる荷重により手摺１１の縦桟１１Ｂが内方に傾くよう作用し、手摺１１が外れるのを防止できる機能を有する。
【００２０】
また、天板３の長辺９側への取り付けは、図７に示すような方式で行うこともできる。図７の取付け方式においては、ピンＰをばね３２の作用によって天板３の上方に突出するよう取付けておき、手摺１１の設置に際しては、板状部材１４を、ばね３２の作用に抗してピンＰを下方に押しながら天板３の上面に挿着すると、天板３の孔ＨがピンＰの位置に来た時点でピンＰが上方に戻り板状部材１４が固定される。
【００２１】
本発明においては、第２の形態として、手掛け部材を折り畳み可能に取付けた可搬式作業台１において、長方形状の天板３の短辺１０側に着脱可能な手摺１２を設けることもできる。また、第３の実施形態として、天板３の長辺９側と短辺１０側の両方に手摺を設けることもできる。
【００２２】
手摺１２の天板３の短辺１０側への固定方式の一例を図８に示す。図８においては、手摺１２の縦桟１２Ｂの下部に固定用部材１６、１６を固着し、中間部に各一対の天板挟持部材１７、１７を設け、図８に点線で示されるように、固定用部材１６、１６の屈曲部１８、１８を主脚４の一対の縦部材に嵌着するとともに、天板挟持部材１７、１７で天板３の短辺１０側を挟持し、天板挟持部材１７および天板３に穿設した孔Ｈを介してボルト・ナット、ピンなど適宜の手段で天板３に天板挟持部材１７を固着することにより手摺１２を取付ける。また、天板３と天板挟持部材１７の固着を解除することにより手摺１２を取り外すことができる。
【００２３】
本発明においては、図９に示すように、天板３の短辺１０側に端部足場１９を連接することにより、例えば、作業台の長手方向を壁面と対向させて行う壁面作業において、作業台と壁面との隙間をなくし、作業台１の（長手方向）端部での作業中の落下事故を防止することができる。また、足場台の長手方向の作業面積を簡単に増やすことができ、作業領域を広げることができる。
【００２４】
本発明の実施形態として、図９に示すように、端部足場１９を連設するとともに手摺を設けることもできる。図９においては、天板３の両長片側に手摺１１を設けているが、使用態様によっては、一方の長辺側のみに手摺１１を設ける場合もある。また、天板３の短片側にのみ手摺１２を取付けることもでき、また天板３の長辺側と短辺側に手摺１２を併設することもできる。
【００２５】
端部足場１９は、例えば図１０に示すように、端部足場１９に端部足場固定用部材２０を有する脚部２２、２２を取付け、端部足場固定用部材２０の溝部２１を作業台の主脚のステップ５に嵌着するとともに、端部足場１９の端部を天板３と同一レベルとなるよう天板３の短片１０に重合して、孔Ｈを介してボルト・ナットなど適宜の手段で天板３に固定する。また、端部足場１９にワイヤーなど適宜の手段で取付けられているピンＰを孔Ｈに挿通して、端部足場１９を天板３に固定するようにすると便利である。
【００２６】
本発明においては、図１１、図１２に示すように、作業台１間に中間足場２３を介設して長手方向または幅方向に連結し、作業面を長手方向または幅方向に拡張して使用することができる。作業台１を中間足場２３を介設して長手方向に連設して使用する場合、図１１に示すように、天板３、３の長辺９側の手摺１１、１１を連結部材２４で結び、天板の長辺側に手摺を連続させることによって、内外装工事の際の壁面作業などを安全性を確保しながら広範囲に行うことが可能となる。
【００２７】
また、図１２に示すように、作業台１を中間足場２３を介設して幅方向に連結して使用する場合、天板３、３の長辺側の手摺１１、１１を連結部材２４、２４で結べば、天板の短辺側も囲われて連結部材２５、２５が手摺の機能を果たし、広い作業面において四方の安全を確保することができる。これらの実施形態における手摺の取付けは、図１１、図１２に例示したものに限らず、足場台の使用態様に応じて、天板の長辺側への取付け、短辺側への取付けを適宜選択、組合わせて実施することができる。
【００２８】
さらに、本発明においては、図１３に示すように、作業台１を多数の中間足場２３を介設して長手方向および幅方向に連結してもよく、例えば、天板３の長辺側および短辺側にそれぞれ手摺１１および１２を取付け、手摺１１、１２をそれぞれ連結部材２４および２５で結び、連続した手摺を形成する。なお、図１３は、手掛け部材６を省略して示されている。
【００２９】
作業台１の長手方向への連結は、図１１に示すように、複数の作業台１、１を長方形状の天板３、３の短辺が対向するよう配置して、対向する天板の短辺間に中間足場２３を配設し、作業台１の幅方向への連結は、図１２に示すように、複数の作業台１、１を長方形状の天板３、３の長辺が対向するよう配置し、対向する天板の長辺間に中間足場２３を配設する。
【００３０】
作業台１の天板３に中間足場２３を取付ける場合の実施形態は、図１４に示すように、中間足場２３の端縁部に取付け部材２６をボルト・ナット、リベットなどの固定手段Ｆで固着し、天板３と取付け部材２６を重合して、重合部に対応する孔Ｈを穿設し、孔Ｈにピン２７を差し込むことによって行われる。
【００３１】
ピン２７は、図１５に示すように、一部に切欠き３０を有する頭部２８、差込み部２９および頭部２８より小径の中間部３１からなり、孔Ｈへの差し込みを簡単に行うことができると同時に、切欠き３０の部分に、例えばドライバーの先を入れて持ち上げることにより簡単に引き抜くことができ、作業台の折り畳み、移動の際の作業性を向上させるのに役立つ。
【００３２】
このピン２７は、図２、図３に示す手摺１１と天板３の長辺９側との固定における板状部材１４と天板３と結合、図８に示す手摺１２と天板３の短辺１０側との結合における天板挟持部材１７、１７と天板３との結合、図１０に示す天板３への端部足場１９の連設においても、孔Ｈに差し込んで使用することができる。
【００３３】
作業台１の天板３に中間足場２３を取付ける場合の他の実施形態としては、図１６に示すように、中間足場２３の一方の端縁部においては、短いピン部材３３Ｂを設け、下部に傾斜面３４を形成して外方に開いた形状とした取付け部材２６Ｂをボルト・ナット、リベットなどの固定手段で固着し、中間足場２３をやや傾けるようにして傾斜面３４に沿って天板３の端部に挿入し、ピン部材３３Ｂを天板３の孔Ｈに差し込むことにより天板３に中間足場２３を取付ける。また、中間足場２３の他方の端縁部においては、長いピン部材３３Ａを設けた取付け部材２６Ａを固着し、天板３と取付け部材２６Ａを重合する際に、ピン部材３３Ａを天板３の孔Ｈに差し込むことにより中間足場２３の取付けを行う。
【００３４】
【実施例】
以下、本発明の実施例を説明する。
実施例１
アルミニウム押出形材（材質：Ａ６０６３ＳおよびＡ６Ｎ０１Ｓ）を組合わせた天板（寸法：長さ１５００ｍｍ、幅５００ｍｍ）、Ａ６Ｎ０１Ｓ押出形材からなる梯子状の主脚、手掛け部材を用いて、図１８に示す構造の、最大高さ１７５０ｍｍ、主脚の伸縮幅４００ｍｍの作業台を組立てた。
【００３５】
この作業台に、アルミニウム押出形材（材質：Ａ６０６３ＳおよびＡ６Ｎ０１Ｓ）を組合わせてなる中間足場（寸法：長さ１５００ｍｍ、幅５００ｍｍ）を介設させて、図１６に示す方式により作業台を連結し、図１１に示すような作業台を形成した。
【００３６】
ついで、図１１に示すように、作業台１、１の天板３、３の一方の長辺側に、図３〜６の方式に従って、アルミニウム合金押出形材（材質：Ａ６０６３Ｐ）からなる手摺を取付け、手摺間を手摺と同じ材質からなる連結部材２４で結び、作業台を完成した。
【００３７】
この作業台を実際に内装工事現場において、壁面作業に使用したところ、手摺の存在により、背後の安全性が確保され、きわめて安全に作業を行うことができ、作業性も向上することが確認された。
【００３８】
実施例２
アルミニウム押出形材（材質：Ａ６０６３ＳおよびＡ６Ｎ０１Ｓ）を組合わせた天板（寸法：長さ１５００ｍｍ、幅５００ｍｍ）、Ａ６Ｎ０１Ｓ押出形材からなる梯子状の主脚、手掛け部材を用いて、図１８に示す構造の、最大高さ１７５０ｍｍ、主脚の伸縮幅４００ｍｍの作業台を組立てた。
【００３９】
この作業台に、アルミニウム押出形材（材質：Ａ６０６３ＳおよびＡ６Ｎ０１Ｓ）を組合わせてなる中間足場（寸法：長さ１５００ｍｍ、幅５００ｍｍ）を介設させて、図１６に示す方式により作業台を連結し、図１２に示すような作業台を形成した。
【００４０】
ついで、図１２に示すように、天板３、中間足場２３および天板３からなる作業面の対向する長辺側に、図３〜６の方式に従って、アルミニウム合金押出形材（材質：Ａ６０６３Ｓ）からなる手摺１１を取付け作業台を完成した。
【００４１】
この作業台を実際に内装工事現場において、壁面作業に使用したところ、手摺の存在により、背後の安全性が確保され、きわめて安全に作業を行うことができ、作業性も向上することが確認された。
【００４２】
【発明の効果】
本発明によれば、長方形状の天板をそなえた可搬式作業台において、従来の可搬式作業台の構造、軽量性を大きく変えることなく、作業の安全性が大幅に向上し、その結果として、作業性の向上も期待することができる可搬式作業台が提供される。
【図面の簡単な説明】
【図１】本発明による可搬式作業台の実施例を示す斜視図である。
【図２】本発明における天板の長辺側への手摺の固定方式の一実施例を示す一部斜視図である。
【図３】本発明における天板の長辺側への手摺の固定方式の他の実施例を示す一部断面図である。
【図４】図３の固定方式において用いる固定部材の正面図である。
【図５】図３の固定方式において用いる固定部材の平面図である。
【図６】図３の固定方式において用いる天板の一部斜視図である。
【図７】本発明における天板の長辺側への手摺の固定方式のさらに他の実施例を示す一部断面図である。
【図８】本発明における天板の短辺側への手摺の固定方式の実施例を示す一部斜視図である。
【図９】本発明の端部足場を連設した可搬式作業台を示す斜視図である。
【図１０】本発明における端部足場の連設方式の一実施例を示す一部斜視図である。
【図１１】中間足場を介して長手方向に連結した本発明による可搬式作業台を示す斜視図である。
【図１２】中間足場を介して幅方向に連結した本発明による可搬式作業台を示す斜視図である。
【図１３】多数の中間足場を介して長手方向および幅方向の連結した本発明による可搬式作業台を示す斜視図である。
【図１４】本発明における作業台の天板と中間足場の連結方式の一実施例を示す一部断面図である。
【図１５】天板と中間足場を連結するためのピンを示す斜視図である。
【図１６】本発明における作業台の天板と中間足場の連結方式の他の実施例を示す一部断面図である。
【図１７】従来の可搬式作業台を示す斜視図である。
【図１８】従来の手掛け部材付き可搬式作業台を示す斜視図である。
【符号の説明】
１可搬式作業台
２従来の可搬式作業台
３天板
４主脚
５ステップ
６手掛け部材
７ステイ
８屈曲部
９天板の長辺
9A 長辺側側壁
9B 長辺側中間壁
10 天板の短辺
11 手摺
11A 横桟
11B 縦桟
12 手摺
12B 縦桟
13 固定用部材
13A 垂直部
13B 立上り部
13C 垂直部
13D 立上り部
14 板状部材
15 溝部
16 固定用部材
17 天板挟持部材
18 屈曲部
19 端部足場
20 端部足場固定用部材
21 溝部
22 脚部
23 中間足場
24 連結部材
25 連結部材
26 取付け部材
27 ピン
28 頭部
29 差込み部
30 切欠き
31 中間部
32 ばね
33 ピン部材
34 傾斜面
Ｈ孔
Ｐピン
Ｆ固定手段[0001]
BACKGROUND OF THE INVENTION
The present invention is a portable work table used in construction work sites, interior / exterior work such as ceilings and walls of buildings, and electrical wiring work. More specifically, a ladder-shaped main leg can be folded on a rectangular top plate. It relates to the improvement of the portable workbench provided in.
[0002]
[Prior art]
Conventionally, for work such as a ceiling or a wall of a building or the like, as shown in FIG. 17, a work table (scaffold) provided with ladder-shaped main legs 4 and 4 each having a step 5 on a rectangular top plate 3. 2 is used. (Japanese Utility Model Publication No. 6-56321)
[0003]
The work table 2 is usually portable, and after use, the work table 2 can be folded and moved by folding the stay 7 attached between the top plate 3 and the step 5 at the bent portion 8. ing.
[0004]
This type of workbench is applied to a work floor with a height of less than 2m from the viewpoint of safety, and safety measures such as anti-slip are taken on the top plate that is the work floor. When working with a hand on the ceiling or wall surface, it often lacks stability and often causes a fall accident.
[0005]
In order to solve this problem, as shown in FIG. 18, in a portable work table 2 in which ladder-shaped main legs 4, 4 are foldably provided on the top board 3, the top board 3 or the main legs 4 are arranged above the top board 3. A portable work table 1 is proposed in which a handle member 6 that functions as a handle for raising and lowering is rotated in the A direction or the B direction so as to be foldable along the main leg 4 or the top plate 2. (Patent Nos. 2989166 and 2989172)
[0006]
However, even when using a workbench equipped with such a handle member, it is easy for the feet to be inadvertent, especially in work that is concentrated on the interior, exterior work, electrical wiring work, etc. There have been many accidents in which a foot is removed from the long side or short side of a rectangular top plate, and a work platform with higher safety is required.
[0007]
[Problems to be solved by the invention]
The present invention has been made to solve the above-described conventional problems in a workbench in which a ladder-like main leg is foldably provided on a top plate. The object of the present invention is, for example, a length of 1,300 to A portable work table with a vertical top plate size of 1,800 mm and a width of about 250 to 500 mm and a height of about 2 m or less can be used without changing the structure of the conventional portable work table. It is an object of the present invention to provide a portable work table that greatly improves the safety of work when the work is carried on the machine.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, a portable work bench according to claim 1 of the present invention is provided with a ladder-shaped main leg that can be folded on a rectangular top plate, and a handle member can be folded on the top plate or the main leg. In the mounted portable work table, a fixing member that contacts the lower surface portion of the top plate and a plate member that contacts the upper surface of the top plate are provided below the vertical rail of the handrail, the plate member and the fixing member, The handrail is attached to the long side of the top plate by pinching the long side end portion of the top plate by inserting a pin from the plate-like member into the top plate .
[0009]
The portable worktable according to claim 2 is a portable worktable in which a ladder-shaped main leg is foldably provided on a rectangular top plate, and a handle member is foldably attached to the top plate or the main leg. At the bottom of the crosspiece, a vertical part that abuts the long side wall of the top plate and a rising part that extends from the vertical part and fits into a groove formed by the long side intermediate wall of the top plate that is located inward of the long side wall And a plate-like member that comes into contact with the top surface of the top plate. The plate-like member and the fixing member sandwich the long side end of the top plate. A handrail is attached to the long side of the top plate by connecting the top plate with a pin.
[0010]
According to a third aspect of the present invention, the portable work platform according to the first or second aspect is characterized in that an detachable end scaffold is continuously provided on the short side of the top plate.
[0011]
According to a fourth aspect of the present invention, there is provided a portable worktable according to the first or second aspect , wherein a plurality of the portable worktables are arranged so that the short sides of the rectangular top plate are opposed to each other, and an intermediate between the short sides of the opposed top plates is provided. The working table is connected in the longitudinal direction through a scaffold.
[0012]
According to a fifth aspect of the present invention, there is provided a portable worktable according to the first or second aspect in which a plurality of rectangular worktops are arranged so that the long sides of the rectangular top plate face each other, and an intermediate between the long sides of the facing top boards is provided. The working table is connected in the width direction through a scaffold.
[0013]
In the worktable of the present invention, members such as the top plate, the main leg, the handle member, the handrail, the end scaffold, and the intermediate scaffold can be made of lightweight steel, FRP, or other materials, depending on the mode of use. In view of lightness, corrosion resistance, handleability, and the like, it is most preferable to use an aluminum extruded shape (including an alloy) or a combination of an aluminum extruded shape and an aluminum plate.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
A preferred embodiment of the portable worktable of the present invention will be described below. The same code | symbol was attached | subjected to the same member as the past, and a common member. In addition, these embodiment shows an Example of this invention, and this invention is not limited to these.
[0015]
As shown in FIG. 1, the first mode of attachment of the handrail according to the present invention is such that a ladder-shaped main leg 4, 4 is foldably provided on a rectangular top plate 3, and the top plate 3 or the main leg 4 is hung. In the portable work table 1 to which the member 6 is foldably attached, a detachable handrail 11 is provided on the long side 9 of the rectangular top plate 3. 5 is a step of the ladder-shaped main leg 4, 7 is a stay 7 attached between the top plate 3 and the step 5, and the work table 1 can be folded and moved by folding the stay 7 at the bent portion. It has become. In this case, the handle member 6 is preferably attached to the corner portion of the top plate 3 or the upper portion of the main leg 4.
[0016]
As shown in FIG. 1, the handrail 11 can be provided to face both the long sides 9 of the top plate 3. However, when performing work on the wall surface, one long side of the top plate 3 is placed on the wall surface. In the case where the handrail 10 is used close to the wall, the handrail 10 may be provided only on the long side opposite to the long side contacting the wall surface, and it is selected depending on the use mode of the work table. The
[0017]
As shown in FIG. 2, the handrail 11 is fixed to the long side 9 side of the top plate 3 by providing a fixing member 13 at a lower portion of the vertical rail 11 B extending from the horizontal rail 11 A of the handrail 11. For example, the vertical portion 13A of the fixing member 13 is fixed to the lower portion of the vertical beam 11B by a suitable means such as a bolt and a nut (not shown), and the rising portion 13B extending from the vertical portion 13 of the fixing member 13 is indicated by a one-dot chain line. As shown, it is brought into contact with the lower surface portion of the top plate 3, and a plate member 14 made of L-shaped metal fittings is fixed to the vertical rail 11B of the handrail 11 and the top plate 3 by means such as bolts and nuts, The handrail 11 is detachably attached to the long side 9 side of the top plate 3.
[0018]
The other fixing method to the long side 9 side of the top plate 3 of the handrail 11 is shown in FIGS. As shown in FIGS. 3 and 6, a long side wall 9 A and a long side intermediate wall 9 B positioned inward from the long side wall 9 A are provided on the long side 9 side of the top plate 3. As shown in FIGS. 3 to 5, a vertical portion 13 C contacting the long side wall 9 A of the top plate 3, and a long side intermediate wall extending from the vertical portion 13 C, below the vertical rail 11 B of the handrail 11. A plate-like member such as an L-shaped bracket that is provided by attaching a fixing member 13 having a rising portion 13D that fits into a groove portion 15 formed by 9B with, for example, a bolt, a nut, or a rivet, and that abuts the upper surface of the top plate 14 is attached by bolts / nuts or rivets, for example, and as shown in FIG. 3, the plate member 14 and the fixing member 13 sandwich the long side end of the top plate 3, and the plate member 14 The hole H drilled in the top plate 3 is aligned, and a pin P is inserted into the hole H, whereby the handrail 11 is attached to the long side 9 side of the top plate 3.
[0019]
As shown in FIGS. 3 to 4, the pin P is conveniently attached to the vertical rail 11 B of the handrail 11 by an appropriate means such as a wire. The handrail 11 can be removed by removing the pin P. In this fixing method, the handrail 11 is freely installed at any position on the long side 9 side of the top plate 3 by forming the long side intermediate wall 9B continuously in the longitudinal direction of the top plate 3. It becomes possible. Further, when the handrail 11 is attached by this fixing method, when an operator is placed on the top plate 3, the vertical rail 11 B of the handrail 11 acts to inwardly tilt due to the load applied to the top plate 3, and the handrail 11 is detached. It has the function which can prevent.
[0020]
Moreover, the attachment to the long side 9 side of the top plate 3 can also be performed by a system as shown in FIG. In the mounting method of FIG. 7, the pin P is mounted so as to protrude above the top plate 3 by the action of the spring 32, and when installing the handrail 11, the plate-like member 14 is against the action of the spring 32. When the pin P is pushed downward and inserted into the top surface of the top plate 3, the pin P returns upward and the plate-like member 14 is fixed when the hole H of the top plate 3 reaches the position of the pin P.
[0021]
In the present invention, as a second embodiment, in the portable worktable 1 to which the handle member is foldably attached, a detachable handrail 12 can be provided on the short side 10 side of the rectangular top plate 3. Further, as a third embodiment, handrails can be provided on both the long side 9 side and the short side 10 side of the top plate 3.
[0022]
An example of a method of fixing the handrail 12 to the top side 3 of the top plate 3 is shown in FIG. In FIG. 8, fixing members 16 and 16 are fixed to the lower part of the vertical rail 12B of the handrail 12, and a pair of top plate clamping members 17 and 17 are provided in the middle part, as shown by dotted lines in FIG. The bent portions 18 and 18 of the fixing members 16 and 16 are fitted to the pair of vertical members of the main leg 4 and the top plate holding members 17 and 17 hold the short side 10 side of the top plate 3 to hold the top plate. The handrail 12 is attached by fixing the top plate clamping member 17 to the top plate 3 by appropriate means such as bolts, nuts and pins through the holes 17 formed in the member 17 and the top plate 3. Further, the handrail 12 can be removed by releasing the fixation between the top plate 3 and the top plate holding member 17.
[0023]
In the present invention, as shown in FIG. 9, by connecting an end scaffold 19 to the short side 10 side of the top plate 3, for example, in a wall surface work in which the longitudinal direction of the work table is opposed to the wall surface, A gap between the table and the wall surface can be eliminated, and a fall accident during work at the (longitudinal) end of the work table 1 can be prevented. Further, the work area in the longitudinal direction of the scaffolding can be easily increased, and the work area can be expanded.
[0024]
As an embodiment of the present invention, as shown in FIG. 9, the end scaffold 19 can be provided continuously and a handrail can be provided. In FIG. 9, the handrail 11 is provided on both long sides of the top board 3, but the handrail 11 may be provided only on one long side depending on the usage. Further, the handrail 12 can be attached only to the short side of the top plate 3, and the handrail 12 can be provided on the long side and the short side of the top plate 3.
[0025]
For example, as shown in FIG. 10, the end scaffold 19 is provided with leg portions 22 and 22 having end scaffold fixing members 20 attached to the end scaffold 19, and the groove portions 21 of the end scaffold fixing members 20 are formed on the work platform. While fitting to the step 5 of the main leg, the end portion of the end scaffold 19 is superposed on the short piece 10 of the top plate 3 so as to be at the same level as the top plate 3, and an appropriate bolt / nut or the like is provided through the hole H. It fixes to the top plate 3 with a means. In addition, it is convenient to fix the end scaffold 19 to the top plate 3 by inserting the pin P attached to the end scaffold 19 by an appropriate means such as a wire through the hole H.
[0026]
In the present invention, as shown in FIG. 11 and FIG. 12, an intermediate scaffold 23 is interposed between the work tables 1 and connected in the longitudinal direction or the width direction, and the work surface is expanded and used in the length direction or the width direction. can do. When the workbench 1 is used by connecting it in the longitudinal direction with the intermediate scaffold 23 interposed therebetween, the handrails 11 and 11 on the long side 9 side of the top plates 3 and 3 are connected by the connecting member 24 as shown in FIG. By connecting the handrail to the long side of the top plate, it is possible to perform a wide range of wall work during interior / exterior construction while ensuring safety.
[0027]
As shown in FIG. 12, when the work table 1 is used by being connected in the width direction with the intermediate scaffold 23 interposed, the handrails 11, 11 on the long sides of the top plates 3, 3 are connected to the connecting member 24, If tied at 24, the short side of the top plate is also surrounded, and the connecting members 25 and 25 serve as a handrail, and it is possible to ensure safety in all directions on a wide work surface. The attachment of the handrail in these embodiments is not limited to that illustrated in FIGS. 11 and 12, and the attachment to the long side of the top plate and the attachment to the short side are appropriately performed according to the usage mode of the scaffolding base. Selection and combination can be implemented.
[0028]
Furthermore, in the present invention, as shown in FIG. 13, the work table 1 may be connected in the longitudinal direction and the width direction through a number of intermediate scaffolds 23, for example, the long side of the top plate 3 and Handrails 11 and 12 are attached to the short sides, respectively, and handrails 11 and 12 are connected by connecting members 24 and 25, respectively, to form a continuous handrail. In FIG. 13, the handle member 6 is omitted.
[0029]
As shown in FIG. 11, the work table 1 is connected in the longitudinal direction by arranging a plurality of work tables 1 and 1 so that the short sides of the rectangular top plates 3 and 3 face each other. An intermediate scaffold 23 is arranged between the short sides, and the work table 1 is connected in the width direction as shown in FIG. 12 by connecting the work tables 1 and 1 to the long sides of the rectangular top plates 3 and 3. It arrange | positions so that it may oppose, and the intermediate | middle scaffold 23 is arrange | positioned between the long sides of the opposing top plate.
[0030]
In the embodiment in which the intermediate scaffold 23 is attached to the top plate 3 of the work table 1, as shown in FIG. 14, the attachment member 26 is fixed to the end edge of the intermediate scaffold 23 by fixing means F such as bolts, nuts and rivets. Then, the top plate 3 and the mounting member 26 are overlapped, a hole H corresponding to the overlapped portion is formed, and the pin 27 is inserted into the hole H.
[0031]
As shown in FIG. 15, the pin 27 includes a head portion 28 having a notch 30 in a part, an insertion portion 29, and an intermediate portion 31 having a smaller diameter than the head portion 28, and can be easily inserted into the hole H. At the same time, it can be easily pulled out by, for example, inserting a driver's tip into the notch 30 and lifting it, which helps to improve the workability when folding and moving the work table.
[0032]
The pin 27 is coupled to the plate-like member 14 and the top plate 3 in fixing between the handrail 11 shown in FIGS. 2 and 3 and the long side 9 side of the top plate 3, and is short between the handrail 12 and the top plate 3 shown in FIG. 8. The top plate holding members 17 and 17 and the top plate 3 can be connected to the side 10 side, and the end scaffold 19 can be connected to the top plate 3 shown in FIG. it can.
[0033]
As another embodiment when attaching the intermediate scaffold 23 to the top plate 3 of the work table 1, as shown in FIG. 16, a short pin member 33B is provided at one end edge of the intermediate scaffold 23, and the lower part is provided at the lower part. A mounting member 26B having an inclined surface 34 formed in an outwardly open shape is fixed by a fixing means such as a bolt, a nut, and a rivet, and the intermediate platform 23 is slightly inclined so that the top plate 3 extends along the inclined surface 34. The intermediate scaffold 23 is attached to the top plate 3 by inserting the pin member 33B into the hole H of the top plate 3. Further, at the other end edge of the intermediate scaffold 23, the attachment member 26A provided with the long pin member 33A is fixed, and when the top plate 3 and the attachment member 26A are overlapped, the pin member 33A is inserted into the hole of the top plate 3. The intermediate scaffold 23 is attached by inserting it into H.
[0034]
【Example】
Examples of the present invention will be described below.
Example 1
FIG. 18 shows a top plate (dimensions: length 1500 mm, width 500 mm) in which aluminum extruded profiles (materials: A6063S and A6N01S) are combined, ladder-shaped main legs and handle members made of A6N01S extruded profiles. A worktable having a maximum height of 1750 mm and a main leg expansion / contraction width of 400 mm was assembled.
[0035]
An intermediate scaffold (dimensions: length 1500 mm, width 500 mm) formed by combining aluminum extruded profiles (materials: A6063S and A6N01S) is provided on this work table, and the work tables are connected by the method shown in FIG. A work table as shown in FIG. 11 was formed.
[0036]
Next, as shown in FIG. 11, a handrail made of an aluminum alloy extruded shape (material: A6063P) is applied to one long side of the top plates 3, 3 of the worktables 1, 1 according to the method of FIGS. The workbench was completed by connecting and connecting the handrails with a connecting member 24 made of the same material as the handrails.
[0037]
When this work bench was actually used for wall work at the interior construction site, it was confirmed that the safety of the back was ensured by the presence of the handrail, the work could be done extremely safely, and the workability was also improved. It was.
[0038]
Example 2
FIG. 18 shows a top plate (dimensions: length 1500 mm, width 500 mm) in which aluminum extruded profiles (materials: A6063S and A6N01S) are combined, ladder-shaped main legs and handle members made of A6N01S extruded profiles. A worktable having a maximum height of 1750 mm and a main leg expansion / contraction width of 400 mm was assembled.
[0039]
An intermediate scaffold (dimensions: length 1500 mm, width 500 mm) formed by combining aluminum extruded profiles (materials: A6063S and A6N01S) is provided on this work table, and the work tables are connected by the method shown in FIG. A work table as shown in FIG. 12 was formed.
[0040]
Next, as shown in FIG. 12, an aluminum alloy extruded profile (material: A6063S) is formed on the opposite long sides of the work surface including the top plate 3, the intermediate scaffold 23, and the top plate 3 according to the method shown in FIGS. A workbench was completed with a handrail 11 made of
[0041]
When this work bench was actually used for wall work at the interior construction site, it was confirmed that the safety of the back was ensured by the presence of the handrail, the work could be done extremely safely, and the workability was also improved. It was.
[0042]
【The invention's effect】
According to the present invention, in a portable worktable having a rectangular top plate, the safety of the work is greatly improved without greatly changing the structure and light weight of the conventional portable worktable, and as a result, In addition, a portable worktable that can be expected to improve workability is provided.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of a portable worktable according to the present invention.
FIG. 2 is a partial perspective view showing an embodiment of a method of fixing a handrail to the long side of the top plate in the present invention.
FIG. 3 is a partial cross-sectional view showing another embodiment of the method of fixing the handrail to the long side of the top plate in the present invention.
4 is a front view of a fixing member used in the fixing method of FIG. 3. FIG.
5 is a plan view of a fixing member used in the fixing method of FIG. 3. FIG.
6 is a partial perspective view of a top plate used in the fixing method of FIG. 3;
FIG. 7 is a partial cross-sectional view showing still another embodiment of the method of fixing the handrail to the long side of the top plate in the present invention.
FIG. 8 is a partial perspective view showing an embodiment of a method of fixing a handrail to the short side of the top plate in the present invention.
FIG. 9 is a perspective view showing a portable work table in which end scaffolds according to the present invention are continuously provided.
FIG. 10 is a partial perspective view showing an embodiment of the end scaffold continuous connection system in the present invention.
FIG. 11 is a perspective view showing a portable worktable according to the present invention connected in the longitudinal direction via an intermediate scaffold.
FIG. 12 is a perspective view showing a portable worktable according to the present invention connected in the width direction via an intermediate scaffold.
FIG. 13 is a perspective view showing a portable worktable according to the present invention connected in the longitudinal direction and the width direction through a number of intermediate scaffolds.
FIG. 14 is a partial cross-sectional view showing an embodiment of a method for connecting the top plate of the work table and the intermediate scaffold according to the present invention.
FIG. 15 is a perspective view showing a pin for connecting the top board and the intermediate scaffold.
FIG. 16 is a partial cross-sectional view showing another embodiment of a method for connecting the top plate of the work table and the intermediate scaffold according to the present invention.
FIG. 17 is a perspective view showing a conventional portable work table.
FIG. 18 is a perspective view showing a conventional portable worktable with a handle member.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Portable worktable 2 Conventional portable worktable 3 Top plate 4 Main leg 5 Step 6 Hook member 7 Stay 8 Bending part 9 Long side of top plate
9A long side wall
9B Long side intermediate wall
10 Short side of the top
11 Handrail
11A side pier
11B vertical rail
12 Handrail
12B Vertical rail
13 Fixing member
13A vertical section
13B Rise
13C vertical section
13D Rise
14 Plate member
15 Groove
16 Fixing member
17 Top plate clamping member
18 Bend
19 End scaffold
20 End scaffold fixing member
21 Groove
22 legs
23 Intermediate scaffold
24 Connecting members
25 Connecting members
26 Mounting material
27 pin
28 head
29 Insertion section
30 notches
31 Middle part
32 Spring
33 Pin member
34 Inclined surface H hole P pin F fixing means

Claims

In a portable worktable with a ladder-shaped main leg that can be folded on a rectangular top plate and a handle member attached to the top plate or main leg so that it can be folded , the lower surface of the top plate of the handrail A fixing member that comes into contact with the plate and a plate-like member that comes into contact with the top surface of the top plate. The plate-like member and the fixing member hold the end on the long side of the top plate, and the pin from the plate-like member to the top plate A portable workbench characterized in that a handrail is attached to the long side of the top board by inserting the door.

In a portable worktable where a ladder-shaped main leg is foldable on a rectangular top plate and a handle member is foldably attached to the top plate or main leg, the long side of the top plate is placed under the vertical rail of the handrail A fixing member having a vertical portion that contacts the side wall and a rising portion that extends from the vertical portion and that fits into a groove formed by the long-side intermediate wall of the top plate that is positioned inward of the long-side side wall; By providing a plate-like member that comes into contact with the upper surface of the top plate, sandwiching the long side end of the top plate by the plate-like member and the fixing member, and connecting the plate-like member and the top plate with a pin A portable workbench characterized by attaching a handrail to the long side of the top board.

The portable worktable according to claim 1 or 2 , further comprising an end scaffold that can be attached to and detached from the short side of the top plate.

A plurality of portable worktables according to claim 1 or 2 are arranged such that the short sides of the rectangular top plate are opposed to each other, and an intermediate scaffold is interposed between the short sides of the opposed top plates to provide a worktable. A portable workbench characterized by being connected in the longitudinal direction.

A plurality of the portable worktables according to claim 1 or 2 are arranged so that the long sides of the rectangular top plate are opposed to each other, and an intermediate scaffold is interposed between the long sides of the opposed top plates. A portable work platform that is connected in the width direction.