JP3116031U

JP3116031U - Workbench

Info

Publication number: JP3116031U
Application number: JP2005006868U
Authority: JP
Inventors: 博康田井
Original assignee: 株式会社泉陽商会
Priority date: 2005-08-23
Filing date: 2005-08-23
Publication date: 2005-11-24
Anticipated expiration: 2015-08-23

Abstract

【課題】高所作業を安全に行うことができると共に、コンパクトな大きさに容易に折畳むことができる作業台を提供する。
【解決手段】複数の柱部材１を有すると共に床板部材５が付設された作業台本体45と、左右一対の柱部材１Ａ，１Ｂ間に折り畳まれた折畳収納状態と後方向展開状態とに切換自在な昇降用階段２と、を備えた作業台である。また、左右一対の柱部材１Ａ，１Ｂの夫々には、上下方向の第１ガイド溝部36と第２ガイド溝部37が設けられている。また、昇降用階段２は、左右一対の突張部材20，20と、突張部材20に枢着されると共に第１被ガイド軸25が設けられた一対のリンク部材24，24と、左右一対の突張部材20，20間に枢着されると共に第２被ガイド軸26，26が設けられた踏板部材19と、を有する。また、第１被ガイド軸25は、第１ガイド溝部36に上下スライド自在に嵌め込まれ、第２被ガイド軸26は、第２ガイド溝部37に上下スライド自在に嵌め込まれている。
【選択図】図３PROBLEM TO BE SOLVED: To provide a work table that can safely perform work at a high place and can be easily folded into a compact size.
A worktable body 45 having a plurality of pillar members 1 and a floor plate member 5 is switched to a folded storage state folded between a pair of left and right pillar members 1A and 1B and a rearward expanded state. It is a workbench equipped with a freely raising and lowering stairs 2. Further, a first guide groove portion 36 and a second guide groove portion 37 in the vertical direction are provided on each of the pair of left and right column members 1A and 1B. The elevating staircase 2 includes a pair of left and right projecting members 20, 20, a pair of link members 24, 24 pivotally attached to the projecting member 20 and provided with a first guided shaft 25, and a pair of left and right And a tread plate member 19 provided with second guided shafts 26 and 26 and pivotally mounted between the projecting members 20 and 20. The first guided shaft 25 is fitted into the first guide groove portion 36 so as to be slidable up and down, and the second guided shaft 26 is fitted into the second guide groove portion 37 so as to be slidable up and down.
[Selection] Figure 3

Description

本考案は、高所作業用の作業台に関するものである。 The present invention relates to a work table for working at heights.

従来の作業台として、一対の脚部の上端を開閉自在に枢着した脚立体と、脚立体の側方に立設される支持脚とを床面に立設し、夫々の上端部を、足場板部で横架状に連結したものが知られている（例えば、特許文献１参照）。
特開平７−１０２７５７号公報 As a conventional workbench, a leg body in which the upper ends of a pair of leg portions are pivotably attached and a support leg standing on the side of the leg body are erected on the floor surface, What was connected horizontally by the scaffold board part is known (for example, refer patent document 1).
JP-A-7-102757

この従来の作業台は、足場板部の上方に手摺りとなるものが設けられていないので、足場板部の上面に乗って作業する間にバランスを崩してしまった場合、落下する危険があり、安全に作業を行うことができない。
また、不使用時に収納する場合は、脚立体の両脚部を枢着部にて閉じると共に、支持脚を足場板部に折畳み、かつ、足場板部を、下方へ垂下するように、脚立体の側方にて枢軸で折り曲げるのであるが、脚立体の両脚部同士の間隔や、脚立体と支持脚との間隔が大きく、畳んだ大きさがコンパクトではないので、広い収納スペースを要し、邪魔になる。 Since this conventional workbench is not provided with a handrail above the scaffold plate part, there is a risk of falling if the balance is lost while working on the upper surface of the scaffold plate part. Can't work safely.
Also, when storing when not in use, close both leg parts of the leg solid body at the pivoting part, fold the support leg to the scaffold board part, and hang the scaffold board part downward, Although it is bent at the pivot on the side, the distance between the legs of the leg solid and the distance between the leg solid and the support leg are large, and the folded size is not compact, so it requires a large storage space and is obstructive. become.

そこで、本考案は、高所作業を安全に行うことができると共に、コンパクトな大きさに容易に折畳むことができる作業台を提供することを目的とする。 Accordingly, an object of the present invention is to provide a work table that can safely perform work at a high place and can be easily folded into a compact size.

上記の目的を達成するために、本考案に係る作業台は、複数の柱部材を有すると共に床板部材が付設された作業台本体と、左右一対の該柱部材間に折り畳まれた折畳収納状態と後方向展開状態とに切換自在であると共に上記床板部材に昇降するための昇降用階段と、を備えた作業台であって、上記左右一対の柱部材の夫々には、上下方向の第１ガイド溝部と第２ガイド溝部が設けられ、上記昇降用階段は、下端に車輪が付設された左右一対で後方下傾状の突張部材と、該突張部材に後端部が枢着されると共に前端部に第１被ガイド軸が設けられた後方下傾状の一対のリンク部材と、該左右一対の突張部材間に後端部が枢着されると共に前端寄りに左右一対の第２被ガイド軸が設けられた踏板部材と、を有し、上記リンク部材の上記第１被ガイド軸は、上記第１ガイド溝部に上下スライド自在に嵌め込まれ、上記踏板部材の上記第２被ガイド軸は、上記第２ガイド溝部に上下スライド自在に嵌め込まれている。 In order to achieve the above object, a work table according to the present invention includes a work table body having a plurality of column members and a floor plate member, and a folded storage state in which the work table is folded between a pair of left and right column members. And a back-and-forth deployment state, and a lifting / lowering stair for moving up and down to the floor plate member, each of the pair of left and right column members includes a first in the vertical direction. A guide groove portion and a second guide groove portion are provided, and the elevating staircase has a pair of left and right projecting members each having a lower left side and a rear end portion pivotally attached to the projecting members. In addition, a pair of rearwardly inclined link members provided with a first guided shaft at the front end portion, and a rear end portion pivoted between the pair of left and right projecting members and a pair of left and right second members closer to the front end A tread member provided with a guided shaft, and the first guide member of the link member Axis is fitted freely vertically sliding on the first guide groove, the second guided shaft of the stepping plate member is fitted freely up and down the slide in the second guide groove.

また、上記昇降用階段の上記後方向展開状態において、上記リンク部材の上記第１被ガイド軸は、上記第１ガイド溝部の下端で係止され、かつ、上記踏板部材の上記第２被ガイド軸は、上記第２ガイド溝部の下端で係止される。
また、上記踏板部材は、上記左右一対の第２被ガイド軸が設けられた第１踏板部材と、該第１踏板部材よりも下方の第２踏板部材と、を有し、該第１踏板部材及び該第２踏板部材は、上記左右一対の突張部材と略平行を保つ連結杆にて相互に連結されている。 The first guided shaft of the link member is locked at the lower end of the first guide groove portion and the second guided shaft of the tread member is in the rearward expanded state of the ascending / descending step. Is locked at the lower end of the second guide groove.
The tread member includes a first tread member provided with the pair of left and right second guided shafts, and a second tread member below the first tread member, the first tread member The second tread member is connected to each other by a connecting rod that is substantially parallel to the pair of left and right projecting members.

また、上記作業台本体は、上半部が手摺り枠部を形成すると共に全体の輪郭が矩形状である一対の側枠体を有し、該側枠体は、前方向展開状態と左右方向折畳状態とに切換自在となるように、枢着部材にて上記左右一対の柱部材に枢着され、該一対の側枠体のうちの一方の側枠体の上下中間位置に、上記床板部材が、鉛直状に折り畳まれる折畳収納状態に揺動可能として枢着されている。
また、上記一対の側枠体のうち、一方の側枠体は、前方向展開状態と左右方向折畳状態とを、平面視略90°の範囲をもって揺動し、かつ、他方の側枠体は、前方向展開状態と左右方向折畳状態とを、平面視略 270°の範囲をもって揺動するよう、上記枢着部材にて枢着されている。
また、前方向展開状態の一対の側枠体の前端縁部を左右連結状に取付・取外自在として連結する間隔保持部材を、備え、しかも、該間隔保持部材のうちの一本は、手摺り用水平部材である。 The work table body has a pair of side frames whose upper half forms a handrail frame and whose overall outline is a rectangular shape. The floor plate is pivotally attached to the pair of left and right pillar members by a pivot attachment member so as to be switchable to a folded state, and the floor plate is positioned at the upper and lower intermediate positions of one of the pair of side frame bodies. The member is pivotally mounted so as to be swingable in a folded storage state in which the member is folded vertically.
In addition, of the pair of side frames, one side frame swings between the forwardly expanded state and the left-right direction folded state within a range of about 90 ° in plan view, and the other side frame Is pivotally attached by the pivot member so as to swing between the forwardly expanded state and the laterally folded state within a range of about 270 ° in plan view.
In addition, a spacing member is provided for connecting the front end edges of the pair of side frames in the forward-deployed state so that they can be attached / removed in a laterally connected manner, and one of the spacing members is a hand. It is a horizontal member for sliding.

本考案は、次のような著大な効果を奏する。
本考案の作業台は、突張部材の下端側を床面に接触させたまま、折畳動作を行うことができ、その際の突張部材の移動は車輪によりスムーズであるので、容易に昇降用階段を折畳むことができる。また、踏板部材の揺動と突張部材の移動とを連動させることができるので、折畳動作の途中で突張部材が前後にぐらついて折畳動作がぎこちなくなることもない。
また、昇降用階段の後方向展開状態において、踏板部材に作業者が乗った場合に踏板部材を水平状に確実に保持でき、安全である。
また、昇降用階段が複数段で構成されている場合にも、すべての踏板部材を連動させて容易に折畳みを行い得る。 The present invention has the following remarkable effects.
The work table of the present invention can be folded while keeping the lower end side of the strut member in contact with the floor surface. The stairs can be folded. Further, since the swinging of the tread plate member and the movement of the tension member can be interlocked, the tension member does not sway back and forth during the folding operation, and the folding operation does not become awkward.
In addition, when the operator gets on the tread member in the rearward expanded state of the ascending / descending stairs, the tread member can be securely held in a horizontal state, which is safe.
Further, even when the ascending / descending stairs are composed of a plurality of stairs, all the tread members can be linked together and easily folded.

また、床板部材上での作業中にバランスを崩しても、身体を側枠体の手摺り枠部が支えてくれ、落下することがない。また掴みながら作業することもできるので、効率よく、安全に高所作業を行うことができる。
また、折畳状態において、側枠体は、柱部材を挟んで前後において略平行状となり、一層コンパクトに折畳むことができる。
また、作業中に側枠体が不意に揺動するのを防ぐことができ、安全に作業を行うことができる。また、作業中にバランスを崩しても手摺り用水平部材が支えとなると共に、手摺り用水平部材を把持しながら作業することもでき、高所作業が、一層安全なものとなる。 Even if the balance is lost during the work on the floor board member, the handrail frame portion of the side frame supports the body and does not fall. Moreover, since it can also work while grasping, it can work at a high place efficiently and safely.
Further, in the folded state, the side frame body is substantially parallel before and after the column member, and can be folded more compactly.
Further, it is possible to prevent the side frame body from unexpectedly swinging during the work, and the work can be performed safely. In addition, even if the balance is lost during the work, the handrail horizontal member can be supported, and the handrail horizontal member can be gripped to work, so that the work at a high place becomes safer.

以下、実施の形態を示す図面に基づき、本考案を詳説する。
図１〜図３に於て、本考案の実施の一形態に係る作業台は、複数の柱部材１を有すると共に床板部材５が付設された作業台本体45と、床板部材５に昇降するための昇降用階段２と、を備えている。
昇降用階段２は、左右一対の柱部材１Ａ，１Ｂ間に折り畳まれた折畳収納状態（図５参照）と後方向展開状態（図３参照）とに切換自在である。
また、作業台本体45の左右一対の柱部材１Ａ，１Ｂは、下端同士が横桁９にて連結されて、所定間隔に保持されている。両柱部材１Ａ，１Ｂは、同じ高さの細長棒形状であると共に、平面視に於て、夫々、左右方向外方斜め前方向きの斜向面16，17を有する直角三角形状に形成されている。また、左右一対の柱部材１Ａ，１Ｂの夫々には、上下方向の第１ガイド溝部36と第２ガイド溝部37が設けられている。また、柱部材１Ｂには、昇降用階段２の後方向展開状態において後述の突張部材20，20の上部を係止する係止部30が設けられている。なお、矢印Ｆは前方を示す。 Hereinafter, the present invention will be described in detail with reference to the drawings showing embodiments.
1 to 3, a work table according to an embodiment of the present invention includes a work table main body 45 having a plurality of column members 1 and a floor plate member 5 attached thereto, and the floor plate member 5. Stairs 2 for raising and lowering.
The ascending / descending stairs 2 can be switched between a folded storage state (see FIG. 5) folded between a pair of left and right column members 1A and 1B and a rearward unfolded state (see FIG. 3).
In addition, the pair of left and right column members 1A and 1B of the work table main body 45 are held at predetermined intervals with their lower ends connected by a cross beam 9. Both columnar members 1A and 1B are formed in the shape of right-angled triangles having slanted bar shapes having the same height and obliquely facing surfaces 16 and 17 that are obliquely outward and forward in the lateral direction in plan view, respectively. Yes. Further, a first guide groove portion 36 and a second guide groove portion 37 in the vertical direction are provided on each of the pair of left and right column members 1A and 1B. Further, the column member 1B is provided with a locking portion 30 that locks the upper portions of the later-described strut members 20, 20 in the rearwardly expanded state of the ascending / descending stairs 2. The arrow F indicates the front.

ここで、図３及び図４に於て、昇降用階段２の構造ついて詳しく述べる。この昇降用階段２は、下端に車輪23が付設された左右一対で後方下傾状の突張部材20，20と、突張部材20に後端部が枢着される後方下傾状の一対のリンク部材24，24と、左右一対の突張部材20，20間に後端部が枢着される踏板部材19と、を有している。
突張部材20，20は、細長矩形棒体から成り、後方向展開状態で床面Ｇに突っ張って踏板部材19を水平に保持するようになっている。
リンク部材24は、棒状であり、前端部に第１被ガイド軸25が設けられている。このリンク部材24の第１被ガイド軸25は、第１ガイド溝部36に上下スライド自在に嵌め込まれている。また、第１被ガイド軸25は、昇降用階段２の後方向展開状態において、第１ガイド溝部36の下端で係止されるようになっている。
また、リンク部材24の後端部は、揺動軸33にて、突張部材20に枢着されている。 Here, the structure of the ascending / descending steps 2 will be described in detail with reference to FIGS. The ascending / descending stairs 2 includes a pair of left and right projecting members 20 and 20 each having a lower end with a wheel 23 attached thereto, and a rearwardly inclined pair having rear end portions pivotally attached to the projecting member 20. Link members 24 and 24 and a tread member 19 whose rear end is pivotally mounted between a pair of left and right projecting members 20 and 20.
The strut members 20, 20 are formed of elongated rectangular bars, and are stretched against the floor surface G in a rearwardly unfolded state to hold the tread member 19 horizontally.
The link member 24 has a rod shape, and a first guided shaft 25 is provided at the front end. The first guided shaft 25 of the link member 24 is fitted in the first guide groove 36 so as to be slidable up and down. Further, the first guided shaft 25 is locked at the lower end of the first guide groove 36 in the rearward expanded state of the elevating staircase 2.
Further, the rear end portion of the link member 24 is pivotally attached to the projecting member 20 by the swing shaft 33.

踏板部材19は、前端寄りに左右一対の第２被ガイド軸26，26が設けられている。この踏板部材19の第２被ガイド軸26は、第２ガイド溝部37に上下スライド自在に嵌め込まれている。第２被ガイド軸26は、昇降用階段２の後方向展開状態において、第２ガイド溝部37の下端で係止されるようになっている。
また、踏板部材19は、上述の左右一対の第２被ガイド軸26，26が設けられた第１踏板部材21と、第１踏板部材21よりも下方の第２踏板部材22と、を有している。第１踏板部材21は、突張部材20，20の上部に、揺動軸27にて枢着されている。また、第２踏板部材22の後端部は、突張部材20，20の上下略中間位置に、揺動軸28にて枢着されている。なお、この揺動軸28は、揺動軸33よりも上方に位置している。
第１踏板部材21及び第２踏板部材22は、左右一対の突張部材20，20と略平行を保つ左右一対の連結杆38，38にて相互に連結されている。この連結杆38は、棒状であり、第１踏板部材21と第２被ガイド軸26にて枢着されている。 The tread member 19 is provided with a pair of left and right second guided shafts 26, 26 near the front end. The second guided shaft 26 of the tread member 19 is fitted in the second guide groove portion 37 so as to be slidable up and down. The second guided shaft 26 is locked at the lower end of the second guide groove portion 37 in the rearward expanded state of the elevating staircase 2.
The tread member 19 includes a first tread member 21 provided with the above-described pair of left and right second guided shafts 26, 26, and a second tread member 22 below the first tread member 21. ing. The first tread plate member 21 is pivotally attached to the upper part of the projecting members 20, 20 by a swing shaft 27. Further, the rear end portion of the second tread plate member 22 is pivotally mounted on the swing shaft 28 at a substantially intermediate position between the projecting members 20 and 20. The swing shaft 28 is located above the swing shaft 33.
The first tread member 21 and the second tread member 22 are connected to each other by a pair of left and right connecting rods 38, 38 that are substantially parallel to the pair of left and right projecting members 20, 20. The connecting rod 38 has a rod shape and is pivotally attached to the first tread plate member 21 and the second guided shaft 26.

次に、作業台本体45の構造について詳しく述べる。図１及び図２に示すように、作業台本体45は、上半部が手摺り枠部３を形成すると共に全体の輪郭が矩形状である一対の側枠体４Ａ，４Ｂを有している。これら側枠体４Ａ，４Ｂは、前方向展開状態と左右方向折畳状態とに切換自在となるように、枢着部材10，11にて左右一対の柱部材１Ａ，１Ｂに枢着されている。
側枠体４Ａ，４Ｂは、夫々、柱部材１Ａ，１Ｂと同じ高さを有する前後一対の縦桁部41，42と、両縦桁部41，42の上端・下端同士を連結する上下一対の横桁部43，44と、から成る。このうち上側の横桁部43は、使用者が把持する手摺り枠部３を形成している。 Next, the structure of the workbench main body 45 will be described in detail. As shown in FIGS. 1 and 2, the work table main body 45 has a pair of side frame bodies 4A and 4B whose upper half forms the handrail frame section 3 and whose overall outline is rectangular. . These side frames 4A and 4B are pivotally attached to a pair of left and right column members 1A and 1B by pivotal members 10 and 11 so as to be switchable between a forwardly expanded state and a leftward and rightward folded state. .
The side frames 4A and 4B are a pair of upper and lower vertical girder portions 41 and 42 having the same height as the column members 1A and 1B, respectively, and a pair of upper and lower vertical girder portions 41 and 42 that connect the upper and lower ends of both vertical girder portions 41 and 42. It consists of horizontal girder parts 43 and 44. Of these, the upper cross beam portion 43 forms a handrail frame portion 3 that is gripped by the user.

側枠体４Ａの後側縦桁部42Ａは、展開状態において左右方向内方斜め後向きとなる合わせ斜向面46を有している。縦桁部42Ａの合わせ斜向面46の前端縁部は、（左側の）柱部材１Ａの斜向面16の前端縁部と、枢着部材10にて揺動自在に枢着されている。枢着部材10は、例えば、蝶番部材であり、上下２箇所付設されている。これにより、側枠体４Ａは、図７の矢印Ｋのように右側（内側）に揺動自在となっている。そして、側枠体４Ａは、前方向展開状態となる時に、その合わせ斜向面46が柱部材１Ａの上記斜向面16に密に合う（当接する）ようになっている。
また、側枠体４Ａの下側横桁部44の下面には、前後一対の首振り車輪６，６が取着されている。 The rear vertical girder portion 42A of the side frame 4A has a matching oblique surface 46 that is obliquely rearward inward in the left-right direction in the unfolded state. The front end edge portion of the alignment inclined surface 46 of the vertical girder portion 42A is pivotally attached to the front end edge portion of the inclined surface 16 of the column member 1A (on the left side) by the pivot attachment member 10. The pivot attachment member 10 is, for example, a hinge member, and is provided at two locations, upper and lower. As a result, the side frame 4A is swingable to the right (inside) as indicated by an arrow K in FIG. When the side frame 4A is in the forwardly developed state, the alignment oblique surface 46 closely fits (abuts) the oblique surface 16 of the column member 1A.
A pair of front and rear swing wheels 6 and 6 are attached to the lower surface of the lower horizontal girder portion 44 of the side frame 4A.

側枠体４Ｂの後側縦桁部42Ｂは、展開状態において左右方向内方斜め後向きとなる合わせ斜向面47を有している。縦桁部42Ｂの合わせ斜向面47の後端縁部は、（右側の）柱部材１Ｂの斜向面17の後端縁部と、枢着部材11にて揺動自在に枢着されている。枢着部材11は、例えば、蝶番部材であり、上下２箇所付設されている。これにより、側枠体４Ｂは、図７の矢印Ｌのように右側（外側）に揺動自在となっている。そして、側枠体４Ｂは、前方向展開状態となる時に、その合わせ斜向面47が柱部材１Ｂの上記斜向面17に密に合う（当接する）ようになっている。
また、側枠体４Ｂの上下中間位置には、受け横桁８が、縦桁部41，42に横架状に設けられている。
また、側枠体４Ｂの下側横桁部44の下面には、前後一対の首振り車輪６，６が取着されている。
図７に於て、上述した一対の側枠体４Ａ，４Ｂのうち、一方の側枠体４Ａは、前方向展開状態と左右方向折畳状態とを、平面視略90°の範囲内の揺動角度θ₁をもって揺動し、かつ、他方の側枠体４Ｂは、前方向展開状態と左右方向折畳状態とを、平面視略 270°の範囲内の揺動角度θ₂をもって揺動するようになっている。 The rear vertical beam portion 42B of the side frame body 4B has a matching oblique surface 47 that is obliquely rearward inward in the left-right direction in the unfolded state. The rear end edge portion of the alignment inclined surface 47 of the vertical beam portion 42B is pivotally attached to the rear end edge portion of the inclined surface 17 of the column member 1B (on the right side) by the pivot attachment member 11. Yes. The pivot attachment member 11 is, for example, a hinge member, and is provided at two locations, upper and lower. As a result, the side frame 4B is swingable to the right (outside) as indicated by an arrow L in FIG. When the side frame body 4B is in the forwardly developed state, the alignment oblique surface 47 closely fits (abuts) the oblique surface 17 of the column member 1B.
In addition, at the upper and lower intermediate positions of the side frame body 4B, the receiving cross beam 8 is provided horizontally on the vertical beam portions 41 and 42.
A pair of front and rear swing wheels 6 and 6 are attached to the lower surface of the lower horizontal beam portion 44 of the side frame 4B.
In FIG. 7, of the pair of side frames 4A and 4B described above, one side frame 4A has a swing between a front expanded state and a left and right folded state within a range of about 90 ° in a plan view. with a dynamic angle theta ₁ swings, and the other one of the side frame member 4B is a the forward deployed state and a horizontal direction folded state, oscillates with a rocking angle theta ₂ in the range of plan view 270 ° It is like that.

作業台本体45の床板部材５は、図１及び図２に示すように、鉛直状に折畳まれる収納状態に揺動可能として、側枠体４Ａの上下中間位置に枢着されている。さらに具体的に述べると、この床板部材５は矩形板状に形成され、その前後方向長さは、側枠体４Ａ（４Ｂ）の縦桁部41，42の対向面40，40の間隔より僅かに小さく、かつ、左右方向長さは、両側枠体４Ａ，４Ｂの外面同士間の幅に略等しく設定されている。床板部材５は、枢着部材12，12にて、側枠体４Ａの縦桁部41，42の対向面40，40の上下中間位置に枢着されている。これにより、床板部材５は、水平状態と鉛直折畳状態とに切換え可能となっている。そして、床板部材５は、水平状態において、側枠体４Ｂ側の受け横桁８にて水平状に保持されるようになっている。 As shown in FIGS. 1 and 2, the floor plate member 5 of the work table main body 45 is pivotally attached to an upper and lower intermediate position of the side frame body 4 </ b> A so as to be swingable in a storage state folded vertically. More specifically, the floor plate member 5 is formed in a rectangular plate shape, and its length in the front-rear direction is slightly smaller than the distance between the opposing surfaces 40, 40 of the stringers 41, 42 of the side frame 4A (4B). And the length in the left-right direction is set to be approximately equal to the width between the outer surfaces of the side frames 4A, 4B. The floor board member 5 is pivotally attached to the upper and lower intermediate positions of the opposed surfaces 40, 40 of the vertical girder portions 41, 42 of the side frame 4A by pivot members 12, 12. Thereby, the floor board member 5 can be switched between a horizontal state and a vertical folded state. And in the horizontal state, the floor board member 5 is hold | maintained horizontally by the receiving cross beam 8 by the side frame 4B side.

また、本実施形態に係る作業台は、展開状態の一対の側枠体４Ａ，４Ｂの前端縁部14，14を左右連結状に取付・取外自在として連結する複数の間隔保持部材７…を、備えている。
間隔保持部材７…は、薄型細長帯板形状を有し、そのうちの一本は、側枠体４Ａ，４Ｂの前端縁部14，14の上部を連結する手摺り用水平部材13となっている。即ち、両側枠体４Ａ，４Ｂの手摺り枠部３と、間隔保持部材７の手摺り用水平部材13とから、平面視に於て後方開放コの字状の手摺りが、形成される。また、他の一本は、側枠体４Ａ，４Ｂの前端縁部14，14の上部と下部とをクロス状に（たすき掛け状に）連結するすじかい用斜め部材15となっている。
上述の間隔保持部材７…の取付は、各間隔保持部材７の端部に形成された小孔にボルト等の取付雄部材31を挿通させると共にその取付雄部材31を各前側縦桁部41の前面に形成された雌孔部32に挿入（螺合）することによって、行われる。 In addition, the work table according to the present embodiment includes a plurality of spacing members 7 that connect the front end edge portions 14 and 14 of the pair of side frames 4A and 4B in an unfolded state in a left-right connection manner so as to be freely attachable / detachable. Have.
The spacing members 7 have a thin and elongated strip shape, and one of them is a handrail horizontal member 13 that connects the upper portions of the front edge portions 14 and 14 of the side frames 4A and 4B. . That is, a handrail having a U-shaped rear opening is formed in plan view from the handrail frame portion 3 of the both side frames 4A and 4B and the handrail horizontal member 13 of the spacing member 7. The other one is a slanting diagonal member 15 that connects the upper and lower portions of the front end edge portions 14, 14 of the side frames 4A, 4B in a cross shape.
The above-described spacing members 7 are attached by inserting a mounting male member 31 such as a bolt into a small hole formed at the end of each spacing holding member 7 and attaching the mounting male member 31 to each front vertical beam portion 41. It is carried out by inserting (screwing) into the female hole 32 formed on the front surface.

なお、柱部材１Ａ，１Ｂ、側枠体４Ａ，４Ｂ、床板部材５、昇降用階段２及び間隔保持部材７は、例えばアルミニウム合金等から、成る。 The column members 1A and 1B, the side frames 4A and 4B, the floor plate member 5, the elevating step 2 and the spacing member 7 are made of, for example, an aluminum alloy.

次に、本考案に係る作業台の作用、使用方法について説明する。
先ず、図１〜図４に示したような展開状態の作業台を、作業する場所まで車輪６，23で移動させ、図示省略のストッパで動き止めをする。そして、昇降用階段２から、床板部材５上に上がり、高所での作業を行う。この際、作業者は手摺り枠部３若しくは手摺り用水平部材13を掴みながら作業できる。また、作業者は、バランスを崩しても手摺り枠部３と手摺り用水平部材13によって支えられる。これにより、作業者は、落下することなく、安全に高所作業を行うことができる。 Next, the operation and usage of the worktable according to the present invention will be described.
First, the work table in the unfolded state as shown in FIGS. 1 to 4 is moved to the place where the work is to be performed by the wheels 6 and 23, and is stopped by a stopper (not shown). And it goes up on the floor board member 5 from the raising / lowering staircase 2, and performs the work in a high place. At this time, the operator can work while holding the handrail frame 3 or the handrail horizontal member 13. Further, even if the operator loses balance, the worker is supported by the handrail frame portion 3 and the handrail horizontal member 13. Thereby, the worker can safely work at a high place without falling.

次に、図３，図５〜図９に於て、作業完了後に作業台を折畳状態にする手順について説明する。
先ず、図４に示すように、床板部材５を、実線にて示す水平状態から、上方（矢印Ｂ方向）へ揺動させる。そして、床板部材５を略鉛直状態にして、その側端縁５ｂを、側枠体４Ａの縦桁部41，42に、ネジ部材等の係止部材29で折畳み状に保持する（図９参照）。
次に、図１に示した全ての間隔保持部材７…を、側枠体４Ａ，４Ｂの前端縁部14，14から取外す。そして、図７に示すように、左側の側枠体４Ａを、矢印Ｋ方向のように右側（内側）に90°揺動させて、左右方向折畳状態とする。 Next, in FIG. 3 and FIG. 5 to FIG.
First, as shown in FIG. 4, the floor board member 5 is swung upward (in the direction of arrow B) from the horizontal state indicated by the solid line. Then, the floor plate member 5 is set in a substantially vertical state, and the side edge 5b is folded and held on the vertical beam portions 41 and 42 of the side frame body 4A by a locking member 29 such as a screw member (see FIG. 9). ).
Next, all the spacing members 7 shown in FIG. 1 are removed from the front end edges 14 and 14 of the side frames 4A and 4B. Then, as shown in FIG. 7, the left side frame body 4A is swung 90 ° to the right side (inner side) as indicated by the arrow K to be in the left-right folded state.

次に、昇降用階段２を、柱部材１Ａ，１Ｂの間に折畳んで収納する。図３に示すように、後方向展開状態では、リンク部材24の第１被ガイド軸25が、第１ガイド溝部36の下端で係止され、踏板部材19の第２被ガイド軸26が、第２ガイド溝部37の下端で係止され、さらに、突張部材20，20の上部が、係止部30にて係止されている。これにより、左右一対の突張部材20，20は、床面Ｇに突っ張った状態を維持し、第１踏板部材21・第２踏板部材22が水平に保持されている。
この状態から、係止部30による突張部材20，20の係止状態を解除する。そして、図６に示すように、第１踏板部材21の後端部を掴んで、上方へ揺動させる（矢印Ｃ方向）と、連結杆38，38で第１踏板部材21と連結された第２踏板部材22も、上方へ揺動する（矢印Ｄ方向）。 Next, the ascending / descending steps 2 are folded and stored between the column members 1A and 1B. As shown in FIG. 3, in the rearward deployed state, the first guided shaft 25 of the link member 24 is locked at the lower end of the first guide groove portion 36, and the second guided shaft 26 of the tread member 19 is 2 is locked at the lower end of the guide groove portion 37, and the upper portions of the projecting members 20, 20 are locked at the locking portion 30. As a result, the pair of left and right projecting members 20 and 20 are maintained in a state of being stretched on the floor surface G, and the first tread member 21 and the second tread member 22 are held horizontally.
From this state, the locked state of the tension members 20, 20 by the locking portion 30 is released. As shown in FIG. 6, when the rear end portion of the first tread member 21 is grasped and swung upward (in the direction of arrow C), the first tread member 21 connected to the first tread member 21 by connecting rods 38 and 38 is obtained. The two tread board member 22 also swings upward (in the direction of arrow D).

第１踏板部材21が上方へ揺動すると、突張部材20，20は、上方へ引き上げられようとするが、その際、リンク部材24の第１被ガイド軸25が第１ガイド溝部36に沿って上方（矢印Ｈ方向）へ移動する。これにより、リンク部材24の第１被ガイド軸25と揺動軸33との前後方向の距離が小さくなるので、突張部材20，20は、車輪23を床面Ｇに接触させたまま、第１ガイド溝部36側に引き寄せられるように移動する（矢印Ｅ方向）。
突張部材20，20の車輪23が床面Ｇに接触したまま第１ガイド溝部36にある程度近づくと、図５の２点鎖線部分で示すように、今度は、第１踏板部材21を揺動させるだけでなく上方へ引き上げる（矢印Ｉ方向）。この際、第１踏板部材21の第２被ガイド軸26は、第２ガイド溝部37に沿って上方へ移動する。また、第１踏板部材21を上方へ引き上げるのに伴って、突張部材20，20は、上方へ引き上げられる（矢印Ｊ方向）。
そして、第１踏板部材21の第２被ガイド軸26が第２ガイド溝部37の上端までくると、第２ガイド溝部37の上端側に形成された掛止溝部34（図６参照）に第２被ガイド軸26を掛止させる。こうして、図５の実線部分で示すように、第１踏板部材21・第２踏板部材22・突張部材20は、柱部材１Ａ，１Ｂの間に折畳まれた収納状態となる。なお、昇降用階段２を折畳む作業は、側枠体４Ａを上記のように折畳む前に行ってもよい。 When the first tread plate member 21 swings upward, the projecting members 20, 20 tend to be pulled upward. At this time, the first guided shaft 25 of the link member 24 extends along the first guide groove 36. Move upward (in the direction of arrow H). As a result, the distance in the front-rear direction between the first guided shaft 25 and the swing shaft 33 of the link member 24 is reduced, so that the projecting members 20 and 20 keep the wheel 23 in contact with the floor G and Move so as to be pulled toward the one guide groove 36 (in the direction of arrow E).
When the wheels 23 of the tension members 20 and 20 approach the first guide groove 36 to some extent while being in contact with the floor surface G, the first tread plate member 21 is swung as shown by a two-dot chain line portion in FIG. In addition to causing it to rise, pull it upward (in the direction of arrow I). At this time, the second guided shaft 26 of the first tread member 21 moves upward along the second guide groove portion 37. Further, as the first tread member 21 is pulled upward, the strut members 20 and 20 are pulled upward (in the direction of arrow J).
Then, when the second guided shaft 26 of the first tread member 21 reaches the upper end of the second guide groove portion 37, the second groove is formed in the latching groove portion 34 (see FIG. 6) formed on the upper end side of the second guide groove portion 37. The guided shaft 26 is hooked. Thus, as shown by the solid line portion in FIG. 5, the first tread member 21, the second tread member 22, and the projecting member 20 are folded between the column members 1A and 1B. In addition, you may perform the operation | work which folds the raising / lowering stairs 2 before folding the side frame 4A as mentioned above.

次に、図７に示すように、右側の側枠体４Ｂを、矢印Ｌのように外側に 270°揺動させて左右方向折畳状態とすれば、図８，図９のような折畳状態となる。
そして、図８，図９に於て、両側枠体４Ａ，４Ｂ・昇降用階段２を、図示省略の開き防止部材によって、不意に開くのを防止する。なお、図は折畳状態を示す側面図であるが、判り易くするために、柱部材１Ａ，１Ｂに対して両側枠体４Ａ，４Ｂを夫々前後に離間させて図示してあり、実際は、両側枠体４Ａ，４Ｂは柱部材１Ａ，１Ｂに接近して配設される。 Next, as shown in FIG. 7, when the right side frame body 4B is swung outward by 270 ° as indicated by the arrow L to be folded in the left-right direction, the folding as shown in FIGS. It becomes a state.
8 and 9, both side frames 4A, 4B and the elevating stairs 2 are prevented from being opened unexpectedly by an opening prevention member (not shown). In addition, although a figure is a side view which shows a folded-up state, in order to make it easy to understand, both side frame body 4A, 4B is spaced apart and back and forth with respect to pillar member 1A, 1B, and is actually shown on both sides. The frame bodies 4A and 4B are disposed close to the column members 1A and 1B.

なお、本考案は、上述の実施の形態に限定されず、本考案の要旨を逸脱しない範囲で設計変更可能である。例えば、本実施形態では、作業台本体45が折畳可能である場合を例示したが、本考案はこれに限らず、折畳できない作業台本体に昇降用階段２を組み合わせるも好ましい。
また、昇降用階段２の踏板部材19は、第１踏板部材21と第２踏板部材22とを有して２段とするものに限るのではなく、踏板部材の数を増やして３段以上とするも自由である。
また、一対の側枠体４Ａ，４Ｂのうち、左側の側枠体４Ａが、前方向展開状態と左右方向折畳状態とを、平面視略 270°の範囲をもって揺動し、かつ、右側の側枠体４Ｂが、前方向展開状態と左右方向折畳状態とを、平面視略90°の範囲をもって揺動するよう、枢着部材10，11にて柱部材１Ａ，１Ｂに枢着されてもよい。 In addition, this invention is not limited to the above-mentioned embodiment, A design change is possible in the range which does not deviate from the summary of this invention. For example, in the present embodiment, the case where the workbench main body 45 is foldable is illustrated, but the present invention is not limited to this, and it is also preferable to combine the elevating staircase 2 with the workbench main body that cannot be folded.
Further, the step board member 19 of the elevating staircase 2 is not limited to the two-stage structure including the first and second step board members 21 and 22, but the number of the step board members is increased to three or more. It is also free to do.
In addition, of the pair of side frames 4A and 4B, the left side frame 4A swings between the forward-deployed state and the left-right folded state within a range of about 270 ° in plan view, The side frame 4B is pivotally attached to the column members 1A and 1B by pivotal members 10 and 11 so as to swing between the forwardly expanded state and the left and right direction folded state within a range of about 90 ° in plan view. Also good.

以上のように、本考案に係る作業台は、複数の柱部材１を有すると共に床板部材５が付設された作業台本体45と、左右一対の柱部材１Ａ，１Ｂ間に折り畳まれた折畳収納状態と後方向展開状態とに切換自在であると共に床板部材５に昇降するための昇降用階段２と、を備えた作業台であって、左右一対の柱部材１Ａ，１Ｂの夫々には、上下方向の第１ガイド溝部36と第２ガイド溝部37が設けられ、昇降用階段２は、下端に車輪23が付設された左右一対で後方下傾状の突張部材20，20と、突張部材20に後端部が枢着されると共に前端部に第１被ガイド軸25が設けられた後方下傾状の一対のリンク部材24，24と、左右一対の突張部材20，20間に後端部が枢着されると共に前端寄りに左右一対の第２被ガイド軸26，26が設けられた踏板部材19と、を有し、リンク部材24の第１被ガイド軸25は、第１ガイド溝部36に上下スライド自在に嵌め込まれ、踏板部材19の第２被ガイド軸26は、第２ガイド溝部37に上下スライド自在に嵌め込まれているので、踏板部材19を掴んで上方へ揺動させ、それに伴って突張部材20，20が上方へ引き上げられる際、リンク部材24の第１被ガイド軸25の上方への移動（図６の矢印Ｈ方向）により、突張部材20，20を第１ガイド溝部36側に移動させることができる。即ち、踏板部材19の揺動に伴って突張部材20，20は上方へ引き上げられるが、その分、後方傾斜状の突張部材20，20を起立させていくことができるので、突張部材20，20の下端側を床面Ｇに接触させたまま、折畳動作を行うことができる。また、突張部材20，20の下端には車輪23が付設されているので、突張部材20，20の移動はスムーズなものとなる。これにより、容易に昇降用階段２を折畳むことができる。 As described above, the work table according to the present invention includes a work table body 45 having a plurality of column members 1 and a floor plate member 5 attached thereto, and a folded storage folded between a pair of left and right column members 1A and 1B. And a lifting / lowering stairway 2 for moving up and down to the floor plate member 5, each of the pair of left and right column members 1 </ b> A and 1 </ b> B includes an upper and lower The first guide groove 36 and the second guide groove 37 in the direction are provided, and the ascending / descending staircase 2 includes a pair of left and right projecting members 20 and 20 with a wheel 23 attached to the lower end, and a projecting member A rear end portion is pivotally attached to 20 and a first guided shaft 25 is provided at the front end portion, and a rearward inclined pair of link members 24, 24 and a pair of left and right projecting members 20, 20 And a tread member 19 having a pair of left and right second guided shafts 26, 26 provided at the ends and pivotally attached to the front end. The first guided shaft 25 of the member 24 is fitted into the first guide groove 36 so as to be slidable up and down, and the second guided shaft 26 of the tread member 19 is fitted into the second guide groove 37 so as to be slidable up and down. Therefore, when the tread member 19 is grabbed and swung upward, and the projecting members 20 and 20 are pulled up accordingly, the link member 24 moves upward of the first guided shaft 25 (arrow in FIG. 6). The projecting members 20, 20 can be moved to the first guide groove 36 side in the H direction. That is, the strut members 20 and 20 are pulled upward as the tread plate member 19 swings. However, the rear slant strut members 20 and 20 can be raised up by that amount. The folding operation can be performed while the lower end sides of 20 and 20 are in contact with the floor G. Further, since the wheels 23 are attached to the lower ends of the tension members 20 and 20, the movement of the tension members 20 and 20 becomes smooth. Thereby, the raising / lowering staircase 2 can be folded easily.

また、踏板部材19の揺動と突張部材20，20の移動とを連動させることができるので、折畳動作の途中で突張部材20，20が前後にぐらついて折畳動作がぎこちなくなることもない。
また、突張部材20，20の下端側の車輪23が床面Ｇに接触している間、踏板部材19を掴んで上方へ揺動させている作業者の手に床面突張部材20，20の全重量が加わることがないので、容易に昇降用階段２を折畳むことができる。 In addition, since the swing of the tread member 19 and the movement of the tension members 20 and 20 can be interlocked, the tension members 20 and 20 swing back and forth during the folding operation, and the folding operation becomes awkward. Nor.
Further, while the wheel 23 on the lower end side of the tension members 20, 20 is in contact with the floor surface G, the floor surface tension member 20, Since the total weight of 20 is not added, the elevating stairs 2 can be easily folded.

また、昇降用階段２の後方向展開状態において、リンク部材24の第１被ガイド軸25は、第１ガイド溝部36の下端で係止され、かつ、踏板部材19の第２被ガイド軸26は、第２ガイド溝部37の下端で係止されるので、昇降用階段２の後方向展開状態において、踏板部材19に作業者が乗った場合に踏板部材19を水平状に確実に保持でき、安全である。 Further, in the rearward expanded state of the ascending / descending stairs 2, the first guided shaft 25 of the link member 24 is locked at the lower end of the first guide groove portion 36, and the second guided shaft 26 of the tread member 19 is Since it is locked at the lower end of the second guide groove portion 37, when the operator gets on the tread member 19, the tread member 19 can be securely held in the horizontal state in the rearwardly expanded state of the ascending / descending stairs 2 and is safe. It is.

また、踏板部材19は、左右一対の第２被ガイド軸26，26が設けられた第１踏板部材21と、第１踏板部材21よりも下方の第２踏板部材22と、を有し、第１踏板部材21及び第２踏板部材22は、左右一対の突張部材20，20と略平行を保つ連結杆38，38にて相互に連結されているので、昇降用階段２が複数段で構成されている場合にも、すべての踏板部材（第１踏板部材21，第２踏板部材22）を連動させて容易に折畳みを行い得る。 The tread member 19 includes a first tread member 21 provided with a pair of left and right second guided shafts 26 and 26, and a second tread member 22 below the first tread member 21. Since the first tread member 21 and the second tread member 22 are connected to each other by connecting rods 38, 38 that are substantially parallel to the pair of left and right projecting members 20, 20, the elevating stairs 2 is composed of a plurality of steps. Even in this case, all the tread members (the first tread member 21 and the second tread member 22) can be easily folded together.

また、作業台本体45は、上半部が手摺り枠部３を形成すると共に全体の輪郭が矩形状である一対の側枠体４Ａ，４Ｂを有し、側枠体４Ａ，４Ｂは、前方向展開状態と左右方向折畳状態とに切換自在となるように、枢着部材10，11にて左右一対の柱部材１Ａ，１Ｂに枢着され、一対の側枠体４Ａ，４Ｂのうちの一方の側枠体４Ａ，４Ｂの上下中間位置に、床板部材５が、鉛直状に折り畳まれる折畳収納状態に揺動可能として枢着されているので、床板部材５上での作業中にバランスを崩しても、身体を側枠体４Ａ，４Ｂの手摺り枠部３が支えてくれ、落下することがない。また掴みながら作業することもできるので、効率よく、安全に高所作業を行うことができる。
そして、一対の側枠体４Ａ，４Ｂと、床板部材５と、昇降用階段２をコンパクトに（幅を狭くして）折畳むことができるので、収納するのに広い場所を要さず、邪魔にならない。しかも、作業台を折畳状態と使用状態に、容易かつ迅速に切換えられて作業効率を上昇させることができる。 The worktable body 45 has a pair of side frames 4A and 4B whose upper half forms the handrail frame portion 3 and whose overall outline is rectangular, and the side frames 4A and 4B A pair of left and right column members 1A and 1B are pivotally attached to pivotal members 10 and 11 so as to be switchable between a direction-deployed state and a laterally folded state. Since the floor board member 5 is pivotally attached to the upper and lower intermediate positions of the side frames 4A and 4B so as to be swingable in a folded storage state in which the floor board member is folded vertically, the balance is maintained during work on the floor board member 5. Even if it breaks down, the handrail frame part 3 of the side frame bodies 4A and 4B supports the body and does not fall. Moreover, since it can also work while grasping, it can work in high places efficiently and safely.
Since the pair of side frames 4A and 4B, the floor plate member 5, and the elevating stairs 2 can be folded compactly (with a narrow width), a large space is not required to store them, do not become. Moreover, the work table can be easily and quickly switched between the folded state and the used state, and the working efficiency can be increased.

また、一対の側枠体４Ａ，４Ｂのうち、一方の側枠体４Ａは、前方向展開状態と左右方向折畳状態とを、平面視略90°の範囲をもって揺動し、かつ、他方の側枠体４Ｂは、前方向展開状態と左右方向折畳状態とを、平面視略 270°の範囲をもって揺動するよう、枢着部材10，11にて枢着されているので、側枠体４Ａ，４Ｂは、柱部材１Ａ，１Ｂを挟んで前後において略平行状となり、一層コンパクトに折畳むことができる。 Further, of the pair of side frames 4A and 4B, one side frame 4A swings between the forwardly expanded state and the left and right direction folded state within a range of about 90 ° in plan view, Since the side frame 4B is pivotally attached by the pivot members 10 and 11 so as to swing between the forwardly expanded state and the left-right direction folded state within a range of about 270 ° in plan view, 4A and 4B are substantially parallel before and after the column members 1A and 1B, and can be folded more compactly.

また、前方向展開状態の一対の側枠体４Ａ，４Ｂの前端縁部14，14を左右連結状に取付・取外自在として連結する間隔保持部材７を、備え、しかも、間隔保持部材７のうちの一本は、手摺り用水平部材13であるので、両側枠体４Ａ，４Ｂを前方向展開状態に保持することができ、作業中に側枠体４Ａ，４Ｂが不意に揺動するのを防ぐことができる。よって、安全に作業を行うことができる。しかも、間隔保持部材７のうちの一本は、手摺り用水平部材13なので、作業中にバランスを崩しても支えとなると共に、把持しながら作業することもでき、高所作業が、一層安全なものとなる。 Further, the space holding member 7 for connecting the front end edge portions 14 and 14 of the pair of side frame bodies 4A and 4B in the forwardly deployed state so as to be detachable in the left-right connection form is provided. One of them is a handrail horizontal member 13, so that both side frames 4A and 4B can be held in the forwardly expanded state, and the side frames 4A and 4B swing unexpectedly during the operation. Can be prevented. Therefore, it is possible to work safely. Moreover, since one of the spacing members 7 is the handrail horizontal member 13, it can be supported even if the balance is lost during the operation, and can be operated while being gripped. It will be something.

本考案に係る作業台の実施の一形態を示す斜視図である。It is a perspective view showing one embodiment of a work table concerning the present invention. 断面平面図である。FIG. 昇降用階段を後方向展開状態とした要部拡大側面図である。It is a principal part expanded side view which made the raising / lowering staircase the back deployment state. 要部拡大背面図である。It is a principal part expanded rear view. 昇降用階段を折畳収納状態とした要部拡大側面図である。It is a principal part enlarged side view which made the raising / lowering staircase the folding accommodation state. 折畳む際の昇降用階段の動きを説明する要部拡大側面図である。It is a principal part expanded side view explaining the motion of the raising / lowering staircase at the time of folding. 説明用平面図である。It is a top view for description. 説明用平面図である。It is a top view for description. 図８のＡ−Ａ矢視断面図である。It is AA arrow sectional drawing of FIG.

Explanation of symbols

１，１Ａ，１Ｂ柱部材
２昇降用階段
３手摺り枠部
４Ａ，４Ｂ側枠体
５床板部材
７間隔保持部材
10 枢着部材
11 枢着部材
13 手摺り用水平部材
14 前端縁部
19 踏板部材
20 突張部材
21 第１踏板部材
22 第２踏板部材
23 車輪
24 リンク部材
25 第１被ガイド軸
26 第２被ガイド軸
36 第１ガイド溝部
37 第２ガイド溝部
38 連結杆
45 作業台本体 DESCRIPTION OF SYMBOLS 1,1A, 1B Column member 2 Stair for raising / lowering 3 Handrail frame part 4A, 4B Side frame 5 Floor board member 7 Space | interval holding member
10 Pivoting parts
11 Pivoting parts
13 Handrail horizontal member
14 Front edge
19 Tread member
20 Strut member
21 First tread member
22 Second tread member
23 wheels
24 Link member
25 First guided shaft
26 Second guided shaft
36 First guide groove
37 Second guide groove
38 Linkage
45 Platform body

Claims

A work table body (45) having a plurality of pillar members (1) and provided with a floor board member (5), and a folded storage state folded between the pair of left and right pillar members (1A) (1B) and the rear A workbench that is switchable to a direction-deployed state and includes an elevating step (2) for ascending and descending to the floor plate member (5),
Each of the pair of left and right column members (1A) (1B) is provided with a first guide groove portion (36) and a second guide groove portion (37) in the vertical direction,
The elevating staircase (2) has a pair of left and right extension members (20), (20) with a wheel (23) attached to the lower end, and a rear end portion on the extension member (20). A pair of link members (24) and (24) inclined downward and provided with a first guided shaft (25) at the front end and the pair of left and right projecting members (20) and (20) A tread member (19) having a rear end portion pivoted between and a pair of left and right second guided shafts (26) (26) provided near the front end,
The first guided shaft (25) of the link member (24) is fitted into the first guide groove (36) so as to be slidable up and down, and the second guided shaft (26) of the tread member (19). Is a work table which is fitted in the second guide groove (37) so as to be slidable in the vertical direction.

In the rearward expanded state of the ascending / descending stairs (2), the first guided shaft (25) of the link member (24) is locked at the lower end of the first guide groove (36), and The workbench according to claim 1, wherein the second guided shaft (26) of the tread member (19) is locked at a lower end of the second guide groove (37).

The tread member (19) includes a first tread member (21) provided with the pair of left and right second guided shafts (26) and (26), and a second lower portion below the first tread member (21). A tread plate member (22), and the first tread plate member (21) and the second tread plate member (22) are connected to each other so as to be substantially parallel to the pair of left and right projecting members (20), (20). (38) The workbench according to claim 1 or 2, which is connected to each other at (38).

The worktable body (45) has a pair of side frames (4A) (4B) whose upper half forms a handrail frame (3) and whose overall contour is rectangular.
The side frame bodies (4A) and (4B) are connected to the pair of left and right column members (1A) by pivoting members (10) and (11) so that they can be switched between a forwardly expanded state and a horizontally folded state. ) (1B),
The floor plate member (5) can swing in a folded storage state in which the floor plate member (5) is vertically folded at the upper and lower intermediate positions of one side frame (4A) of the pair of side frames (4A) and (4B). The workbench according to claim 1, 2 or 3 pivoted as.

Of the pair of side frame bodies (4A) and (4B), one side frame body (4A) swings between a forwardly expanded state and a laterally folded state within a range of approximately 90 ° in plan view, In addition, the other side frame (4B) is mounted on the pivot member (10) (11) so as to swing between the forwardly expanded state and the laterally folded state within a range of about 270 ° in plan view. The workbench according to claim 4, which is pivotally attached.

A distance holding member (7) for connecting the front end edges (14) and (14) of the pair of side frames (4A) and (4B) in the forward-deployed state in a left-right connection manner so as to be freely removable; The workbench according to claim 4 or 5, wherein one of the spacing members (7) is a handrail horizontal member (13).