JP5128925B2

JP5128925B2 - Workbench

Info

Publication number: JP5128925B2
Application number: JP2007320673A
Authority: JP
Inventors: 善昌菅谷; 雅紀横田; 豊山岡; 朋広鶴留
Original assignee: Alinco Inc; Shimizu Corp
Current assignee: Alinco Inc; Shimizu Corp
Priority date: 2007-12-12
Filing date: 2007-12-12
Publication date: 2013-01-23
Anticipated expiration: 2027-12-12
Also published as: JP2009144361A

Description

本発明は、建物の建設現場等において、天井内の耐火被覆作業、配線作業、配管作業等あるいは天井下地やこの下地への天井ボードの取付け、設備器具の取付け等の天井作業、あるいはまたブラインドボックス等の取付作業等々の高所作業を行うのに使用される作業台に関する。 The present invention relates to a fireproof covering work in a ceiling, wiring work, piping work, etc., ceiling work such as installation of ceiling boards and ceiling boards, installation of equipment, etc. The present invention relates to a work table used to perform high-level work such as mounting work.

建物の建設現場で使用される作業台は、天板と、これの下面側の四隅に取り付けられた４本の脚柱とからなり、各脚柱は、脚柱本体と、これに伸縮可能に接続された伸縮部材とからなるもので、建設現場で一般に使用される作業台としては、天板の幅が１ｍ、その長さが２ｍ、また伸縮部材を最大限収縮した状態での作業台の高さが約１．０ｍ、最大限伸張した状態での高さが約１．３ｍ程度のものが多く使用されている。 The work table used at the construction site of the building is composed of a top plate and four pedestals attached to the four corners on the lower side of each, and each pedestal can be expanded and contracted to the pedestal body. As a workbench generally used at construction sites, the workbench is 1m wide, 2m long, and the workbench in a state where the telescopic member is fully contracted. Many are used having a height of about 1.0 m and a height of about 1.3 m when fully extended.

ところが、例えば図１２の(a) に示す鉄骨梁Ｈ回りの耐火被覆作業（Ｎが被覆部を示す）のように床面から作業床面までの高さが２ｍ以上必要な場合には、上記したような高さが約１．０ｍ程度の作業台では、伸縮部材を伸張した状態でも天板高さがせいぜい１．３ｍ程度であるために使用できず、従ってこのような鉄骨梁耐火被覆作業には図示のようなテーブルリフターＲ等の高所作業車や、図示は省略するがローリングタワー等の足場を使用する必要があった。尚、同図に示すように天井下地への天井板Ｓの取付作業は、作業床面高さが比較的低いため、上記した天板高さが約１．０の作業台１０Ｔが使用される。図１２において、Ｐは建物躯体側のデッキプレートを示す。 However, when the height from the floor surface to the work floor surface is required to be 2 m or more as in the case of fireproof coating work around the steel beam H shown in FIG. Such a work table with a height of about 1.0 m cannot be used because the height of the top plate is at most about 1.3 m even when the telescopic member is extended. It was necessary to use an aerial work vehicle such as a table lifter R as shown in the figure, or a scaffold such as a rolling tower although not shown in the figure. Note that, as shown in the figure, the work board 10T having the top plate height of about 1.0 is used for the work of attaching the ceiling plate S to the ceiling base because the work floor surface height is relatively low. . In FIG. 12, P indicates a deck plate on the building skeleton side.

上記鉄骨梁耐火被覆作業に使用されるようなテーブルリフター等の高所作業車やローリングタワー等は、大掛かりな構造であるためコストが高く、設備費用の高騰を来すという問題があった。また、従来の高所作業車では作業床面積が小さく、且つ作業車の横移動、上下昇降時間の無駄が多く、作業性が悪かった。 High-altitude work vehicles such as table lifters and rolling towers used in the above-mentioned steel beam fireproof coating work have a problem that they are expensive because of their large structure, resulting in an increase in equipment costs. In addition, the conventional aerial work vehicle has a small work floor area, and there is a lot of wasted time for lateral movement of the work vehicle and up and down ascending / descending time, resulting in poor workability.

そこで、上記のように天板高さが例えば１．０〜１．３ｍ程度と比較的低い作業台を２台積み重ねるようにすれば、高さが２倍になるから、上記鉄骨梁回り耐火被覆作業のように床面から天板までの高さが例えば２．５ｍ程度必要な高所作業が行なえることになる。しかし、この場合には、作業台を単に積み重ねただけでは不安定で危険であることから、上下の作業台どうしを連結して固定する必要がある。 Therefore, as described above, if two work tables having a relatively low top plate height of, for example, about 1.0 to 1.3 m are stacked, the height is doubled. As in the work, it is possible to perform work at a high place where the height from the floor surface to the top plate is required, for example, about 2.5 m. However, in this case, it is unstable and dangerous to simply stack the work tables, so it is necessary to connect and fix the upper and lower work tables.

本発明は、上記のような課題に鑑みてなされたもので、高さが比較的低く、製作コストの安い作業台を複数台積み重ねることで、例えば鉄骨梁回り耐火被覆作業のような天井作業等、その他の高所作業に有効に使用できるようにすると共に、作業台の積み重ね時に上下に隣り合う作業台どうしを連結することにより安全に使用できる作業台を提供することを目的とする。 The present invention has been made in view of the above problems, and by stacking a plurality of work tables that are relatively low in height and low in production cost, for example, ceiling work such as fire-resistant coating work around steel beams, etc. Another object of the present invention is to provide a work table that can be used effectively for other high-altitude work and that can be used safely by connecting work tables adjacent to each other when the work tables are stacked.

上記課題を解決するための手段を、後述する実施形態の参照符号を付して説明すると、請求項１に係る発明は、天板１の下面側の四隅に夫々脚柱を取り付けてなる作業台において、一つの作業台Ｔの天板１上に他の作業台Ｔの脚柱２を載せて積み重ねた時に上下に隣り合う作業台Ｔの上下に対応する脚柱２どうしを連結する連結装置３，３′を備えてなる作業台であって、前記連結装置３，３′は、脚柱２の所要部に固定された取付金具４と、この取付金具４に一端部５ａが上下方向回動可能に枢着された連結杆５と、この連結杆５の他端部５ｂに上下方向回動可能に枢着され、脚柱２に対し着脱自在なクランプ６とからなるもので、通常時は、連結杆５を脚柱２とほぼ平行するように折り畳んで、クランプ６を当該作業台Ｔの脚柱２に取着することによって連結装置３を収納状態とし、複数の作業台Ｔを積み重ねた時は、上下に隣り合う作業台Ｔの一方の作業台Ｔの連結装置３のクランプ６を脚柱２から外して反転し、他方の作業台Ｔの対応する脚柱２に取着することによって連結装置３を連結状態とするようにしたことを特徴とする。 Means for solving the above problems will be described with reference numerals of the embodiments described later. The invention according to claim 1 is a work table in which pedestals are respectively attached to the four corners on the lower surface side of the top plate 1. In FIG. 5, when the pedestal 2 of another work table T is placed on the top plate 1 of one work table T and stacked, the connecting device 3 connects the corresponding leg columns 2 corresponding to the upper and lower sides of the work table T adjacent to each other. , 3 ', the connecting device 3, 3' includes a mounting bracket 4 fixed to a required portion of the pedestal 2, and one end portion 5a of the mounting bracket 4 rotating in the vertical direction. The connecting rod 5 is pivotally attached, and the other end 5b of the connecting rod 5 is pivotally attached to the other end portion 5b so as to be pivotable in the vertical direction. The connecting rod 5 is folded so as to be substantially parallel to the pedestal 2 and the clamp 6 is attached to the pedestal 2 of the work table T. When the plurality of work tables T are stacked, the clamp 6 of the connection device 3 of one work table T of the work tables T adjacent in the vertical direction is removed from the pedestal 2 and inverted. In addition, the connecting device 3 is brought into a connected state by being attached to the corresponding pedestal 2 of the other work table T.

請求項２は、請求項１に記載の作業台において、連結装置３，３′は、取付金具４が各脚柱２の下端部に固定され、この脚柱２の上部側にクランプ６が取り付けられるようになっていることを特徴とする。 According to a second aspect of the present invention, in the workbench according to the first aspect , the connecting device 3, 3 ′ has a mounting bracket 4 fixed to the lower end portion of each pedestal 2, and a clamp 6 attached to the upper side of the pedestal 2 It is characterized by being adapted.

請求項３は、請求項１又は２に記載の作業台において、連結装置３，３′の取付金具４は脚柱２回りに回動可能に取り付けられることを特徴とする。 According to a third aspect of the present invention, in the workbench according to the first or second aspect , the mounting bracket 4 of the coupling device 3 or 3 ′ is attached so as to be rotatable around the leg 2.

請求項４は、請求項１〜３の何れかに記載の作業台において、連結装置３′のクランプ６はその本体部６ｏが長さ変更可能であることを特徴とする。 Claim 4 is the workbench according to any one of claims 1 to 3, the clamp 6 of the coupling device 3 'is characterized by its body portion 6o is changeable in length.

請求項５は、請求項１〜４の何れかに記載の作業台において、連結装置３，３′のクランプ６はパイプクランプからなることを特徴とする。 A fifth aspect of the present invention is the worktable according to any one of the first to fourth aspects, wherein the clamps 6 of the connecting devices 3 and 3 'are pipe clamps.

請求項６は、請求項１〜５の何れかに記載の作業台において、各脚柱２の下端部にキャスター１４を取り付けると共に、天板１の上面側の四隅にキャスター１４の車輪止め２６，２７を設けてなることを特徴とする。 Claim 6 is the workbench according to any one of claims 1 to 5, is attached to casters 14 to the lower end of Kakuashibashira 2, wheel stopper 26 of the casters 14 on the upper surface of the four corners of the top plate 1, 27 is provided.

請求項７は、請求項１〜６の何れかに記載の作業台において、一つの作業台Ｔの天板１上に他の作業台Ｔの脚柱２を載せて積み重ね、上下に隣り合う作業台Ｔの上下に対応する脚柱２どうしを連結装置３により連結したものを複数組間隔をおいて並置した時に各組の上段側作業台Ｔの天板１どうしを連結用天板２８で連結するようにしたことを特徴とする。 Claim 7 is a work table according to any one of claims 1 to 6 , wherein the work pillars 2 of another work table T are stacked on the top plate 1 of one work table T, and the work is adjacent vertically. When the pillars 2 corresponding to the upper and lower sides of the table T are connected by the connecting device 3, the top plates 1 of the upper work table T of each set are connected by the connecting top plate 28 when a plurality of sets are arranged side by side. It was made to do.

請求項８は、請求項７に記載の作業台において、各組の上段側作業台Ｔの天板１どうしを連結用天板２８で連結すると共に、各組の下段側作業台Ｔの天板１どうしを連結用天板２８で連結するようにしたことを特徴とする。 According to an eighth aspect of the present invention, in the work table according to the seventh aspect , the top plates 1 of the upper stage work tables T of the respective groups are connected to each other by the connection top plate 28, and the top plates of the lower stage work tables T of the respective groups. One is connected with the top plate 28 for connection, It is characterized by the above-mentioned.

上記解決手段による発明の効果を、後述する実施形態の参照符号を付して説明すると、請求項１に係る発明の作業台Ｔは、一つの作業台Ｔの天板１上に他の作業台Ｔの脚柱２を載せて積み重ねた時に上下に隣り合う作業台Ｔの上下に対応する脚柱２どうしを連結する連結装置３，３′を備えているから、高さが比較的低く、比較的安価な作業台を複数台積み重ねることによって、例えば鉄骨梁回り耐火被覆作業のように比較的高所での作業に使用できると共に、上下に隣り合う作業台どうしを連結することによって安全に使用でき、それにより高所作業用の特別な作業台が不要となり、設備費用の軽減を図ることができる。 The effect of the invention by the above-described solution means will be described with reference numerals in the embodiments to be described later. The work table T of the invention according to claim 1 is provided on the top plate 1 of one work table T. It is equipped with connecting devices 3 and 3 'for connecting the corresponding pillars 2 above and below the work table T adjacent to each other when the T pillars 2 are stacked and stacked. By stacking a number of inexpensive work tables, it can be used for work at relatively high places, for example, fireproof coating work around steel beams, and it can be used safely by connecting work tables adjacent to each other vertically. This eliminates the need for a special work table for working at a high place, thereby reducing the equipment cost.

更に本発明によれば、連結装置３，３′は、脚柱２の所要部に固定された取付金具４と、取付金具４に一端部５ａが上下方向回動可能に枢着された連結杆５と、連結杆５の他端部５ｂに上下方向回動可能に枢着され、脚柱２に対し着脱自在なクランプ６とからなるもので、通常時は、連結杆５を脚柱２とほぼ平行するように折り畳んで、クランプ６を当該作業台Ｔの脚柱２に取着することによって連結装置３を収納状態としているため嵩張らず、当該作業台Ｔを通常の積み重ねない状態で使用する時に連結装置３，３′が作業台Ｔから殆ど突出しないので作業に支障を来すことがない。また、作業台を積み重ねて使用する際に、下段側の作業台は連結装置３，３′を設けない通常の作業台でもよいが、その場合には連結装置３，３′を設けない通常の作業台と、連結装置３，３′を設けた作業台Ｔとを選り分けて積み重ね作業を行う必要がある。然るに、連結装置３，３′を設けた作業台Ｔのみを図３に示すようにランダムに同じ構造の作業台Ｔ，Ｔを積み重ねればよく、積み重ね作業を迅速に行なうことができ、また同じ構造の作業台Ｔのみを量産すればよいから、製作費を低減することができる。また同じ作業台Ｔを積み重ねる時は、上下に隣り合う作業台Ｔ，Ｔの上下何れか一方の作業台Ｔの連結装置３，３′のクランプ６を脚柱２から外して反転し、他方の作業台Ｔの対応する脚柱２に取着することにより連結装置３，３′が連結状態となるから、連結装置３，３′の連結操作が簡単となり、上下に隣り合う作業台Ｔの上下に対応する脚柱２，２どうしを迅速容易に連結することができて、作業性が良好となる。 Further , according to the present invention , the connecting devices 3 and 3 'include a mounting bracket 4 fixed to a required portion of the pedestal 2, and a connecting rod having one end portion 5a pivotally attached to the mounting bracket 4 so as to be pivotable in the vertical direction. 5 and a clamp 6 which is pivotally attached to the other end 5b of the connecting rod 5 so as to be pivotable in the vertical direction and is detachable with respect to the pedestal 2. The linking rod 5 is connected to the pedestal 2 in a normal state. Folding so as to be substantially parallel, and attaching the clamp 6 to the pedestal 2 of the work table T, the coupling device 3 is in the retracted state, so it is not bulky, and the work table T is used without being normally stacked. Sometimes, the connecting devices 3 and 3 'hardly protrude from the work table T, so that the work is not hindered. Further, when the work tables are stacked and used, the lower work table may be a normal work table without the connecting devices 3 and 3 '. In that case, the normal work table without the connecting devices 3 and 3' is provided. It is necessary to select and stack the work table and the work table T provided with the coupling devices 3 and 3 '. However, it is only necessary to stack the work tables T and T having the same structure on the work table T provided with the connecting devices 3 and 3 'at random as shown in FIG. Since only the work table T having a structure needs to be mass-produced, the production cost can be reduced. When stacking the same work table T, the clamps 6 of the connecting devices 3 and 3 'of the work table T on either the upper or lower side of the work table T or T are removed from the pedestal 2 and reversed. Since the connecting devices 3 and 3 'are connected by attaching to the corresponding pedestal 2 of the work table T, the connecting operation of the connecting devices 3 and 3' is simplified, and the upper and lower of the work tables T adjacent to each other up and down. It is possible to quickly and easily connect the pillars 2 and 2 corresponding to the above, and the workability is improved.

請求項２に係る発明のように、連結装置３，３′の取付金具４を各脚柱２の下端部に固定し、脚柱２の上部側にクランプ６を取り付けるようにした場合は、作業台Ｔの積み重ね時に、上下に隣り合う上段側作業台Ｔにある各連結装置３のクランプ６をこの上段側作業台Ｔの脚柱２の主脚柱２ａから外して、連結杆５を下向きに１８０°反転し、下段側の作業台Ｔの対応する脚柱２の主脚柱２ａの上端部に取着して連結装置３，３′を連結状態とすることにより、各連結装置３，３′のクランプ６の最終的な取着作業を下段の作業台Ｔ側、つまり低い位置で行なえるため、作業性が一層良くなる。 As in the invention according to claim 2, when the mounting bracket 4 of the coupling device 3, 3 'is fixed to the lower end of each pedestal 2 and the clamp 6 is mounted on the upper side of the pedestal 2, When stacking the tables T, the clamps 6 of the respective connecting devices 3 on the upper work table T adjacent to each other in the vertical direction are removed from the main leg 2a of the pedestal 2 of the upper work table T so that the connecting rod 5 faces downward. Each connecting device 3, 3 is inverted by 180 ° and attached to the upper end of the main pedestal 2 a of the corresponding pedestal 2 of the lower work table T so that the connecting devices 3, 3 ′ are connected. Since the final attaching operation of the clamp 6 'can be performed on the lower work table T side, that is, at a low position, workability is further improved.

請求項３に係る発明のように、連結装置３，３′の取付金具４が脚柱２回りに回動可能に取り付けられるようにすれば、取付金具４を脚柱２の天板桁側対応位置に取り付けた場合は、取付金具４が天板１の妻側からは突出しないから、作業台Ｔを並べるときに図６の(a) に示すように作業台Ｔの妻側端部どうしが突き合うように縦列状態に並べることができ、また取付金具４を脚柱２の天板妻側対応位置に取り付けた場合は、取付金具４が天板１の桁側からは突出しないから、図６の(b) に示すように作業台Ｔの桁側端部どうしが突き合うように横列状態に並べることができる。 If the mounting bracket 4 of the coupling device 3, 3 ′ is pivotably mounted around the pedestal 2 as in the invention according to claim 3 , the mounting bracket 4 is compatible with the top column girder side of the pedestal 2. When mounted in the position, the mounting bracket 4 does not protrude from the wife side of the top board 1, so that when the work table T is arranged, the wives side ends of the work table T are not connected to each other as shown in FIG. When the mounting bracket 4 is mounted at a position corresponding to the top plate side of the pedestal 2, the mounting bracket 4 does not protrude from the girder side of the top plate 1. As shown in FIG. 6 (b), the work table T can be arranged in a row state so that the end portions of the work table T face each other.

請求項４に係る発明のように、連結装置３′のクランプ６はその本体部６ｏを長さ変更可能とすれば、図７及び図８に例示するように作業台Ｔの上に天板幅の狭い作業台Ｔ′を載せた時に、連結装置３′によって下段側作業台Ｔの脚柱２と上段側幅狭作業台Ｔ′の脚柱２とを連結することができる。このように、クランプ６の本体部６ｏが長さ変更可能な連結装置３′を備えた作業台Ｔによれば、作業台Ｔの上に天板幅の狭い作業台、つまり作業台Ｔよりも重量の軽い作業台Ｔ′を載せて連結できるから、積み重ね作業が非常に楽となる。 As in the invention according to claim 4 , if the length of the body 6o of the clamp 6 of the connecting device 3 'can be changed, the top plate width on the work table T as illustrated in FIGS. When the narrow work table T ′ is placed, the connecting device 3 ′ can connect the leg column 2 of the lower work table T and the leg column 2 of the upper work table T ′. As described above, according to the work table T including the coupling device 3 ′ in which the main body portion 6 o of the clamp 6 can be changed in length, the work table having a narrow top plate width on the work table T, that is, the work table T is used. Since the light work table T ′ can be mounted and connected, stacking work becomes very easy.

請求項５に係る発明によれば、連結装置３，３′のクランプ６がパイプクランプからなるため、脚柱２に対するクランプ６の取付け及び取外しを簡単容易に行なうことができる。 According to the fifth aspect of the present invention, since the clamp 6 of the coupling devices 3 and 3 ′ is a pipe clamp, it is possible to easily and easily attach and remove the clamp 6 to and from the pedestal 2.

請求項６に係る発明によれば、各脚柱２の下端部にキャスター１４を取り付けることによって各作業台Ｔの移動が容易になると共に、天板１の上面側の四隅にキャスター１４の車輪止め２６，２７を設けたことにより、作業台Ｔを積み重ねた時に上段側作業台Ｔの移動が阻止されて、作業台Ｔのより安定した段積みが可能となる。 According to the sixth aspect of the present invention, by attaching the casters 14 to the lower end portions of the respective pedestals 2, the work tables T can be easily moved, and the wheels of the casters 14 are fixed to the four corners on the upper surface side of the top plate 1. By providing 26 and 27, when the work tables T are stacked, the upper work table T is prevented from moving, and the work tables T can be stacked more stably.

請求項７に係る発明によれば、作業床面積が広くなって、作業性が格段に向上することになり、そして連結用天板２８の下方にスペースができるため、資材等を跨ぐことができる。 According to the invention which concerns on Claim 7 , since work floor area becomes large and workability | operativity will improve remarkably and space is made under the top plate 28 for a connection, it can straddle materials etc. .

請求項８に係る発明によれば、下段側連結用天板２８の上に資材等を載せたまま移動させることができる利点がある。 According to the invention which concerns on Claim 8 , there exists an advantage which can be moved, putting a material etc. on the lower stage side connection top plate 28. FIG.

以下に本発明の好適な一実施形態を図面に基づいて説明すると、図１の(a) は本発明に係る作業台Ｔの正面図、(b) は平面図、図２の(a) は縦断面図であり、図３は作業台Ｔを２台積み重ねた状態の側面図である。この作業台Ｔは、作業者が乗って天井等における作業を行なう天板１と、この天板１の下面側の前後左右の四隅に取り付けられた４本の脚柱２とからなり、各脚柱２には、図３に示すように２台の作業台Ｔ，Ｔを積み重ねた時に上下の作業台Ｔ，Ｔの上下に対応する脚柱２，２どうしを連結する連結装置３が設けられている。この実施形態の作業台Ｔでは、天板１は、図１の(b) に示すように左右二つに分割され、両分割天板部１ａ，１ａは、枢着部２０で枢着されて、図１の(a) に示すような使用状態から山形をなして二つ折り可能となっており、また各脚柱３は、伸縮可能にして且つ図１の(a) に示すような使用状態から天板１の下面側に折り畳み可能となっている。 A preferred embodiment of the present invention will be described below with reference to the drawings. FIG. 1 (a) is a front view of a workbench T according to the present invention, (b) is a plan view, and FIG. FIG. 3 is a longitudinal sectional view, and FIG. 3 is a side view showing a state in which two work tables T are stacked. The work table T includes a top plate 1 on which an operator rides and works on a ceiling and the like, and four pedestals 2 attached to four front and rear, left and right corners on the lower surface side of the top plate 1. As shown in FIG. 3, the pillar 2 is provided with a connecting device 3 for connecting the leg pillars 2 and 2 corresponding to the upper and lower sides of the upper and lower work tables T and T when the two work tables T and T are stacked. ing. In the work table T of this embodiment, the top plate 1 is divided into left and right parts as shown in FIG. 1 (b), and the two divided top plate parts 1a and 1a are pivotally attached by a pivotal part 20. 1 can be folded in two from the use state shown in FIG. 1 (a), and each pedestal 3 can be expanded and contracted and used as shown in FIG. 1 (a). Can be folded to the lower surface side of the top plate 1.

天板１の下面側の前後左右の四隅には軸取付部材（図示せず）が取り付けられ、左側及び右側の夫々前後軸取付部材間に脚取付軸１２が取り付けられている。一方、各脚柱２は、主脚柱２ａと、この主脚柱２ａ内に嵌挿されて伸縮可能に接続された伸縮脚柱２ｂとからなるもので、各主脚柱２ａは、その上端部が取付ブラケット１１内において左右各脚取付軸１２の前後端部に、天板１に対し垂直な直立姿勢と天板１の下面側に折り畳まれる折畳姿勢とに姿勢変更可能に枢着されている。脚柱２の伸縮脚柱２ｂは、主脚柱２ａ内にその下方より嵌挿されて、所要伸縮位置でストッパー１３により主脚柱２ａに固定されるようになっている。主脚柱２ａ内には伸縮脚柱２ｂの伸張操作を容易にするためのコイルバネ２１が挿入され、また伸縮脚柱２ｂの下端部にキャスター１４が取り付けられている。主脚柱２ａ及び伸縮脚柱２ｂは夫々金属パイプからなる。 A shaft attachment member (not shown) is attached to the front, rear, left and right corners of the lower surface side of the top plate 1, and a leg attachment shaft 12 is attached between the left and right front and rear shaft attachment members. On the other hand, each pedestal 2 is composed of a main pedestal 2a and a telescopic pedestal 2b that is inserted into the main pedestal 2a and connected to be extendable, and each main pedestal 2a has an upper end thereof. The part is pivotally attached to the front and rear end portions of the left and right leg mounting shafts 12 in the mounting bracket 11 so that the posture can be changed between an upright posture perpendicular to the top plate 1 and a folding posture folded on the lower surface side of the top plate 1. ing. The telescopic leg 2b of the leg 2 is fitted and inserted into the main leg 2a from below, and is fixed to the main leg 2a by the stopper 13 at a required telescopic position. A coil spring 21 for facilitating the extension operation of the telescopic leg 2b is inserted into the main leg 2a, and a caster 14 is attached to the lower end of the telescopic leg 2b. The main leg 2a and the telescopic leg 2b are each made of a metal pipe.

また、左側及び右側の夫々前後一対の主脚柱２ａ，２ａは、その下方部側で金属パイプからなる連結材１５によって連結され（図２の(a) 参照）、これら前後一対の主脚柱２ａ，２ａに嵌挿された前後一対の伸縮脚柱２ｂ，２ｂは、その下端部で金属パイプからなる連結材１６によって連結されている（図２の(a) ，図４参照）。また、天板１の下面側中央部と、左右の連結材１５，１５との間には補強桟１７，１７が介装され、各補強桟１７の中間所要部には、当該補強桟１７を二つ折りするための関節部材２２（図１の(a) 参照）が設けられていて、この関節部材１８を中心に補強桟１７を二つ折りすることにより、これに連動して左側及び右側の前後一対の主脚柱２ａ，２ａを天板１の下面側に折り畳み収納できるようになっている。図１(a) ，(b) において、２３はリンク部材、２４はショックアブソーバーを示す。 The pair of front and rear main leg columns 2a and 2a on the left and right sides are connected by a connecting member 15 made of a metal pipe on the lower side thereof (see FIG. 2 (a)). The pair of front and rear telescopic leg columns 2b and 2b fitted and inserted into 2a and 2a are connected by a connecting member 16 made of a metal pipe at the lower end thereof (see FIGS. 2 (a) and 4). Reinforcing bars 17 and 17 are interposed between the central portion on the lower surface side of the top plate 1 and the left and right connecting members 15 and 15, and the reinforcing bars 17 are provided at intermediate required portions of the reinforcing bars 17. A joint member 22 (see FIG. 1A) for folding in half is provided. By folding the reinforcing bar 17 around the joint member 18, the left and right front and rear are interlocked. The pair of main pedestals 2 a and 2 a can be folded and stored on the lower surface side of the top plate 1. In FIGS. 1A and 1B, reference numeral 23 denotes a link member, and 24 denotes a shock absorber.

図１〜図３において、１１及び１１′は各分割天板部１ａの四隅に設けられた手摺ブラケットで、手摺ブラケット１１には２つの手摺支柱差込部１１ａ，１１ａが設けてあり、手摺ブラケット１１′には１つの手摺支柱差込部１１ａが設けてある。しかして、作業台Ｔを積み重ねた時には上段側作業台Ｔの高さが２ｍを越えて、作業上の危険を伴うため、上段側作業台Ｔの天板１上に手摺り２５を設置することができる。この手摺り２５の設置にあたっては、例えば図１の(a) ，(b) 及び図２の(a) を参照すると、天板１の桁側では、図１の(a) に示すように各分割天板部１ａの左右両端にある手摺ブラケット１１′の手摺支柱差込部１１ａと手摺ブラケット１１の一つの手摺支柱差込部１１ａとに手摺り２５の左右支柱２５ａ，２５ａの夫々下端部を差し込めばよく、また天板１の妻側では、図２の(a) に示すように分割天板部１ａの両端にある手摺ブラケット１１，１１の夫々一つの手摺支柱差込部１１ａ，１１ａに、手摺り２５の左右支柱２５ａ，２５ａの夫々下端部を差し込めばよい。 1 to 3, reference numerals 11 and 11 'denote handrail brackets provided at the four corners of each divided top plate portion 1a. The handrail bracket 11 is provided with two handrail post insertion portions 11a and 11a. 11 'is provided with one handrail post insertion portion 11a. Therefore, when the work tables T are stacked, the height of the upper work table T exceeds 2 m, and there is a risk of work. Therefore, the handrail 25 is installed on the top plate 1 of the upper work table T. Can do. When the handrail 25 is installed, for example, referring to FIGS. 1 (a) and 1 (b) and FIG. 2 (a), as shown in FIG. The lower ends of the left and right struts 25a and 25a of the handrail 25 are respectively connected to the handrail strut insertion portion 11a of the handrail bracket 11 'and the one handrail strut insertion portion 11a of the handrail bracket 11 at the left and right ends of the divided top plate portion 1a. It is only necessary to insert it, and on the wife side of the top board 1, as shown in FIG. 2 (a), the handrail bracket insertion parts 11a and 11a of the handrail brackets 11 and 11 at both ends of the divided top board part 1a are respectively inserted. The lower ends of the left and right columns 25a, 25a of the handrail 25 may be inserted.

また作業台Ｔの脚柱２の下端部に取り付けられたキャスター１４には車輪の回転を阻止するロック装置（図示省略）が設けてあるが、このロック装置だけでは、作業台Ｔを積み重ねた時に上段側作業台Ｔのキャスター１４が下段側作業台Ｔの天板１上で滑りを生じて移動するおそれがあるため、下段側作業台Ｔの天板１の上面側四隅部に図２の(b) 〜(d) に示すようにキャスター１４の移動を阻止する車輪止め２６，２７を設けることができる。(b) 及び(c) に示す車輪止め２６は、天板１の上面に凹設された凹所２６ａからなるもの、また(d) に示す車輪止め２７は、天板１の上面に突設された矩形状枠２７ｂによって形成される凹所２７ａからなるものであり、何れの車輪止め２６，２７も、凹所２６ａ，２７ａに車輪１４ａを係合させることによって、キャスター１４の移動を阻止することができる。このようなキャスター１４の車輪止め２６，２７を設けることによって、より一層安定した作業台Ｔの段積みが可能となる。 Further, the caster 14 attached to the lower end of the pedestal 2 of the work table T is provided with a lock device (not shown) for preventing the rotation of the wheel, but with this lock device alone, the work table T is stacked. Since there is a possibility that the caster 14 of the upper work table T slides on the top plate 1 of the lower work table T, the casters 14 of the upper work table T in FIG. b) Wheel stoppers 26 and 27 for preventing the movement of the caster 14 can be provided as shown in FIGS. The wheel stopper 26 shown in (b) and (c) consists of a recess 26 a recessed in the upper surface of the top plate 1, and the wheel stopper 27 shown in (d) protrudes from the upper surface of the top plate 1. Each of the wheel stoppers 26, 27 prevents the movement of the caster 14 by engaging the wheel 14a with the recesses 26a, 27a. be able to. By providing the wheel stoppers 26 and 27 of the caster 14 as described above, the work table T can be stacked more stably.

次に連結装置３について説明すると、この連結装置３は、図４から分かるように、各脚柱２を構成する伸縮脚柱２ｂの下端部に取り付けられる取付金具４と、この取付金具４に一端部５ａが上下方向回動可能に枢着される金属パイプ製の連結杆５と、この連結杆５の他端部５ｂに上下方向回動可能に枢着され、脚柱２の主脚柱２ａに対して着脱自在なクランプ６とからなるもので、通常時は、図３及び図５に示すように、連結杆５を脚柱２と平行になるように上向きに折り畳んで、クランプ６を作業台Ｔの脚柱２の主脚柱２ａに取着することにより連結装置３を収納状態とし、しかして図３及び図５に示すように、一つの作業台Ｔの上に他の作業台Ｔを載せた時は、上段側作業台Ｔに設けてある各連結装置３のクランプ６をこの上段側作業台Ｔの脚柱２の主脚柱２ａから外して、連結杆５を図３及び図５の矢印Ｐで示すような下向き方向に１８０°反転し、そのクランプ６を下段側の作業台Ｔの対応する脚柱２の主脚柱２ａの上端部に取着することによって連結装置３を連結状態とし、これにより上段側の作業台Ｔを下段側の作業台Ｔ上の定位置に固定するようにしたものである。 Next, the connecting device 3 will be described. As can be seen from FIG. 4, the connecting device 3 has a mounting bracket 4 attached to the lower end portion of the telescopic leg 2b constituting each leg 2, and one end of the mounting bracket 4. A connecting rod 5 made of a metal pipe pivotally attached to the portion 5a so as to be pivotable in the vertical direction, and a main leg column 2a of the leg column 2 is pivotally attached to the other end portion 5b of the coupling rod 5 so as to be pivotable in the vertical direction. In the normal state, as shown in FIGS. 3 and 5, the connecting rod 5 is folded upward so as to be parallel to the pedestal 2, and the clamp 6 is operated. By attaching to the main pedestal 2a of the pedestal 2 of the pedestal T, the connecting device 3 is put into the stowed state, and as shown in FIG. 3 and FIG. Is placed on the upper work table T, the clamp 6 of each coupling device 3 provided on the upper work table T is connected to the upper work table. 3 is removed from the main pedestal 2a of the pedestal 2 and the connecting rod 5 is inverted 180 ° in the downward direction as indicated by the arrow P in FIGS. 3 and 5, and the clamp 6 corresponds to the lower work table T. By attaching to the upper end of the main pedestal 2a of the pedestal 2, the connecting device 3 is brought into a connected state, whereby the upper work table T is fixed at a fixed position on the lower work table T. Is.

上記連結装置３の取付金具４は、図４及び図５に示すように、金具本体部４ｏの一端側に設けられた筒状部４ａを脚柱２の伸縮脚柱２ｂの下端部に回転可能に嵌合して所定の回動位置で固定用ビス１９により固定するようにし、また他端部の連結部片４ｂを連結杆５の一端部５ａに枢着ピン７（天板１の長手方向に延びる）によって枢着するようにしたものである。またクランプ６は、単管パイプを用いた鋼管足場の組み立てなどに使用される周知構造のパイプクランプからなるもので、図４に簡単に示すように、連結杆５の他端部５ｂに枢着ピン８によって一端部が枢着されたクランプ本体部６ｏと、このクランプ本体部６ｏの他端部に連設された円弧状パイプ受け６ａの一端側に開閉自在に枢着された円弧状の掴持アーム６ｂと、円弧状パイプ受け６ａの他端側に枢着されて、掴持アーム６ｂの遊端部に取り付けられる締付ボルト６ｃとから構成される。このようなパイプクランプ６によれば、脚柱２に対するクランプ６の取付け及び取外しを簡単容易に行なうことができる。 As shown in FIGS. 4 and 5, the mounting bracket 4 of the connecting device 3 can rotate the cylindrical portion 4 a provided on one end side of the bracket main body 4 o to the lower end of the telescopic leg 2 b of the leg 2. And is fixed with a fixing screw 19 at a predetermined rotational position, and the connecting piece 4b at the other end is pivotally attached to one end 5a of the connecting rod 5 (the longitudinal direction of the top plate 1). It is intended to pivot. The clamp 6 is a pipe clamp having a known structure used for assembling a steel pipe scaffold using a single pipe, and is pivotally attached to the other end 5b of the connecting rod 5 as shown in FIG. A clamp main body 6o having one end pivotally attached by a pin 8 and an arc-shaped grip pivotably attached to one end of an arcuate pipe receiver 6a connected to the other end of the clamp main body 6o. It comprises a holding arm 6b and a fastening bolt 6c that is pivotally attached to the other end of the arcuate pipe receiver 6a and is attached to the free end of the holding arm 6b. According to such a pipe clamp 6, attachment and removal of the clamp 6 with respect to the pedestal 2 can be performed easily and easily.

図１の下側には、伸縮脚柱２ｂを適宜伸張操作することによって各脚柱２の高さを適当に高くした状態を仮想線で示している。 In the lower side of FIG. 1, a state in which the height of each leg column 2 is appropriately increased by appropriately extending the telescopic leg column 2b is indicated by a virtual line.

この実施形態に示す作業台Ｔでは、床面から天板１上面までの高さＨは、伸縮脚柱２ｂを最大限収縮した状態で約１．０ｍであり、また伸縮脚柱２ｂを最大限伸張した状態では約１．３ｍであるから、一つの作業台Ｔの上に他の作業台Ｔを載せることによって、床面から上段側作業台Ｔの天板１上面までの高さは２Ｈで、約２．０〜２．６ｍ（具体的には事務所ビルであれば、２．２〜２．５ｍ程度）である。従って、例えば鉄骨梁回りの耐火被覆作業には作業高さが約２．５ｍ程度必要とする場合が多いが、この場合にはきわめて有用である。このような鉄骨梁回り耐火被覆作業時は使用数量も少ないが、軽天作業を行なう時には、積み重ねていた作業台Ｔを降ろすことにより、作業高さが約１．０〜１．３ｍ程度の作業台として使用することができる。また、作業台Ｔを２台積み重ねて使用することにより、上記のような耐火被覆作業時に使用していた作業台数量で、軽天作業台とした場合（作業台Ｔを積み重ねることなくそのままで使用する場合）は、同じ数量で軽天作業時の床面積は２倍の広さを有することができる。 In the working table T shown in this embodiment, the height H from the floor surface to the top surface of the top plate 1 is about 1.0 m in a state where the telescopic leg 2b is contracted to the maximum, and the telescopic leg 2b is maximized. Since it is about 1.3 m in the extended state, by placing another work table T on one work table T, the height from the floor surface to the upper surface of the top plate 1 of the upper work table T is 2H. , About 2.0 to 2.6 m (specifically, about 2.2 to 2.5 m for an office building). Therefore, for example, in many cases, a work height of about 2.5 m is required for fireproof coating work around a steel beam, but in this case, it is extremely useful. Although the amount of use is small at the time of such fire-resistant coating work around the steel beam, the work height is about 1.0 to 1.3 m by lowering the stacked work table T when performing light work. Can be used as a stand. In addition, when two work tables T are used in a stacked manner, the light work table is used in the quantity of work used during the above fireproof coating work (use the work tables T as they are without being stacked) The floor area during light weather work can be twice as large.

図１２の(b) には、上記作業台Ｔを二つ積み重ねて、鉄骨梁Ｈ回りの耐火被覆作業を行なっている状態を示す。この場合、鉄骨Ｈ梁回りの耐火被覆作業には作業高さが約２．５ｍ程度必要とするが、天板高さ約１．０〜１．３ｍの作業台Ｔを２台積み重ねると、床面から上段側作業台Ｔの天板１上面までの高さが約２．０〜２．６ｍとなるから、これによって鉄骨梁回りの耐火被覆作業を行なうことができる。天井下地への天井板Ｓの取付作業は作業床面高さが比較的低いため、上記作業台Ｔをそのまま使用すればよいことになる。また、上段側作業台Ｔの天板１上面までの高さが２．０ｍを越える場合には、図１及び図２の仮想線図示のように天板１の周縁部に沿って着脱可能な手摺り２５を設置することができる。 FIG. 12B shows a state in which two work tables T are stacked and fireproof coating work around the steel beam H is performed. In this case, the work height of about 2.5m is required for the fireproof coating work around the steel frame H beam, but when two work tables T with a top plate height of about 1.0 to 1.3m are stacked, Since the height from the surface to the upper surface of the top plate 1 of the upper work table T is about 2.0 to 2.6 m, it is possible to perform the fireproof coating work around the steel beam. Since the work floor surface height is relatively low when the ceiling plate S is attached to the ceiling base, the work table T may be used as it is. Further, when the height of the upper stage work table T to the top surface of the top plate 1 exceeds 2.0 m, it can be attached and detached along the peripheral edge of the top plate 1 as shown in phantom lines in FIGS. A handrail 25 can be installed.

図１〜図５に示す実施形態では、作業台Ｔの各脚柱２に取り付ける連結装置３は、作業台Ｔの天板１の桁側からその側方へ張り出すように（図１の(b) 及び図２の(a) 参照）取付金具４を脚柱２の天板桁側対応位置に取り付けているが、そうすると、作業台Ｔを並べる場合には、図６の(a) に示すように作業台Ｔの妻側端部どうしが突き合うように縦列状態でしか並べることができない。しかして、図６の(b) に示すように作業台Ｔを桁側どうしが突き合うように横列状態に並べる必要がある場合は、各連結装置３の取付金具４を脚柱２に対し図６の(a) の状態から９０度回動した天板妻側対応位置に取り付けて、各連結装置３が作業台Ｔの天板１の妻側からその側方へ張り出すように取り付ければよい。 In the embodiment shown in FIGS. 1 to 5, the connecting device 3 attached to each pedestal 2 of the work table T is projected from the side of the top plate 1 of the work table T to the side (( b) and (a) of FIG. 2) The mounting bracket 4 is attached to the position corresponding to the top plate girder side of the pedestal 2. However, in this case, when the work tables T are arranged, as shown in FIG. Thus, the wives side end portions of the work table T can be arranged only in a column state so that they face each other. Therefore, when it is necessary to arrange the work tables T in a row so that the beam sides face each other, as shown in FIG. 6 (a) is attached at a position corresponding to the top plate wife side rotated 90 degrees from the state of (a), and each connecting device 3 is attached so as to protrude from the side of the top plate 1 of the work table T to the side. .

また図１〜図５に示す実施形態では、同じ大きさの作業台Ｔを上下に積み重ねる場合について説明したが、図７には作業台Ｔの上に、天板１の長さは同じであるが、天板１の幅が下段側作業台Ｔの例えば５分の３程度と狭い作業台Ｔ′を積み重ねる場合につき説明する。図７の(a) は作業台Ｔの上に幅狭の作業台Ｔ′を載せて上下作業台Ｔ，Ｔ′の上下に対応する脚柱２，２どうしを下段側作業台Ｔの脚柱２に設けた連結装置３′により連結した状態の平面図、(b) は正面図、(c) は側面図である。尚、上段側の幅狭作業台Ｔ′は、(a) から分かるように下段側作業台Ｔに対して天板１の両端妻側ラインを揃えると共に、下段側作業台Ｔの天板１の幅方向中央側寄りに載せるものとする。尚、ここでは図示を省略しているが、作業台Ｔ，Ｔ′の各脚柱２の下端にはキャスターが取り付けられているものとする。 Moreover, although embodiment shown in FIGS. 1-5 demonstrated the case where the work bench | platform T of the same magnitude | size was piled up and down, the length of the top plate 1 is the same on the work bench T in FIG. However, a description will be given of a case where a narrow work table T ′ is stacked with, for example, about 3/5 of the lower work table T. In FIG. 7A, a narrow work table T 'is placed on the work table T, and the pedestals 2 and 2 corresponding to the upper and lower work tables T and T' are connected to the lower work table T. 2 is a plan view showing a state of being connected by a connecting device 3 ′ provided in FIG. 2, (b) is a front view, and (c) is a side view. In addition, as shown in (a), the narrower work table T ′ on the upper stage side is aligned with both ends of the top plate 1 with respect to the lower work table T, and the top work board 1 of the lower work table T is arranged. It shall be placed near the center in the width direction. In addition, although illustration is abbreviate | omitted here, the caster shall be attached to the lower end of each pedestal pillar 2 of work-table T, T '.

上記連結装置３′は、(c) から分かるように、下段側作業台Ｔの脚柱２の上端部に取り付けられる取付金具４と、取付金具４に一端部が上下方向回動可能に枢着されるの連結杆５と、この連結杆５の他端部に上下方向回動可能に枢着され、上段側作業台Ｔ′の脚柱２に対して着脱自在なクランプ６とから構成される。取付金具４は、金具本体部４ｏの一端側の筒状部４ａを脚柱２の下端部に固定し、他端部を連結杆５の一端部に枢着したものである。クランプ６は、実質的に図４の(b) に示されるような構造であるが、このクランプ６は、クランプ本体部６ｏが長さ変更可能な構造、例えば所要長さに伸縮できる構造となっている。 As can be seen from (c), the connecting device 3 ′ has a mounting bracket 4 attached to the upper end portion of the pedestal 2 of the lower work table T, and one end portion pivotally attached to the mounting bracket 4 so as to be pivotable in the vertical direction. The connecting rod 5 and a clamp 6 pivotally attached to the other end of the connecting rod 5 so as to be pivotable in the vertical direction and detachable with respect to the pedestal 2 of the upper work table T ′. . The mounting bracket 4 is obtained by fixing the cylindrical portion 4 a on one end side of the bracket main body portion 4 o to the lower end portion of the pedestal 2 and pivoting the other end portion on one end portion of the connecting rod 5. The clamp 6 has a structure substantially as shown in FIG. 4B. The clamp 6 has a structure in which the length of the clamp body 6o can be changed, for example, a structure that can be expanded and contracted to a required length. ing.

この連結装置３′は、通常時は、(c) の仮想線で示すように、連結杆５を脚柱２と平行になるように下向きに折り畳むと共に、クランプ６のクランプ本体部６ｏを収縮状態にして脚柱２に取着することにより連結装置３を収納状態とし、そして作業台Ｔの上に幅狭の作業台Ｔ′を載せた時に、各連結装置３のクランプ６を脚柱２から外し、連結杆５を上向きに１８０°反転して、クランプ６を上段側の幅狭作業台Ｔ′の対応する脚柱２の下端部に取着することによって連結装置３′を連結状態とし、これによって上段側の幅狭作業台Ｔ′を下段側の作業台Ｔ上の定位置に固定するようにしたものである。 Normally, the connecting device 3 'folds the connecting rod 5 downward so as to be parallel to the pedestal 2 as shown by the phantom line (c), and the clamp body 6o of the clamp 6 is contracted. When the connecting device 3 is placed in the stowed state by being attached to the pedestal 2 and the work table T ′ having a narrow width is placed on the work table T, the clamp 6 of each connecting device 3 is removed from the pedestal 2. Remove the connecting rod 5 upward 180 ° and attach the clamp 6 to the lower end of the corresponding pedestal 2 of the upper narrow work table T ′ to bring the connecting device 3 ′ into a connected state. As a result, the upper narrow work table T ′ is fixed at a fixed position on the lower work table T.

この連結装置３′のクランプ６は、クランプ本体部６ｏが長さ変更可能であって、ここでは例えば所要長さに伸縮できる構造としているが、これ以外にクランプ本体部６ｏの長さを変更できる構造であれば、どのような構造でもよく、例えば所要長さのクランプ本体部６ｏを適宜に取り換えできるようにしたものでもよい。また、取付金具４は、脚柱２回りに回動可能に取り付けることができる。このように、クランプ６の本体部６ｏが長さ変更可能な連結装置３′を備えた作業台Ｔによれば、作業台Ｔの上に天板幅の狭い作業台、つまり作業台Ｔよりも軽量の作業台Ｔ′を載せて連結できるから、積み重ね作業が非常に楽となる。 The clamp 6 of the connecting device 3 'can be changed in length by the clamp body 6o, and here, for example, has a structure that can be expanded and contracted to a required length, but in addition to this, the length of the clamp body 6o can be changed. Any structure may be used as long as it is a structure. For example, a clamp body 6o having a required length can be appropriately replaced. Further, the mounting bracket 4 can be mounted so as to be rotatable around the pedestal 2. As described above, according to the work table T including the coupling device 3 ′ in which the main body portion 6 o of the clamp 6 can be changed in length, the work table having a narrow top plate width on the work table T, that is, the work table T is used. Since a lightweight work table T ′ can be mounted and connected, stacking work becomes very easy.

図７に示す実施形態は、一つの作業台Ｔの上に一つの幅狭作業台Ｔ′を載せた場合であるが、図８は二つの作業台Ｔ，Ｔ上に二つの幅狭作業台Ｔ′，Ｔ′を載せた実施形態を示し、(a) はその平面図、(b) は(a) のＸ−Ｘ線断面図、(c) は側面図である。即ち、この実施形態では、幅が作業台Ｔの５分の３程度の作業台Ｔ′を作業台Ｔの上に載せて、天板１の妻側ラインどうしを揃えると共に、桁側ラインは片側のみが上下方向に揃うようにした上下二つの作業台Ｔ，Ｔ′の二組を背中合わせに突き合わせたような状態としたもので、下段側作業台Ｔの脚柱２と上段側作業台Ｔ′の脚柱２とを天板１の妻側ラインで上下直線状に対向するものどうし連結装置３によって連結し、また天板１の桁側ラインで上下に段違い状に対向する脚柱２，２どうしを図７の実施形態で示したものと同様な構成の連結装置３′によって連結するようにしたものである。 The embodiment shown in FIG. 7 is a case where one narrow work table T ′ is placed on one work table T, but FIG. 8 shows two narrow work tables on two work tables T and T. An embodiment with T ′ and T ′ mounted thereon is shown, (a) is a plan view thereof, (b) is a sectional view taken along line XX of (a), and (c) is a side view. In other words, in this embodiment, a work table T ′ having a width of about three-fifths of the work table T is placed on the work table T so that the wife side lines of the top plate 1 are aligned, and the girder line is on one side. In this state, two sets of upper and lower work tables T and T ′ that are aligned only in the vertical direction are in a state of being back-to-back, and the pedestal 2 of the lower work table T and the upper work table T ′. Are connected to each other by a connecting device 3 that is opposed to the top side of the top plate 1 in a straight line on the top side of the top plate 1, and is vertically opposite to the top side of the top side of the top plate 1. They are connected by a connecting device 3 'having the same configuration as that shown in the embodiment of FIG.

以上、図１〜図７に示すような作業台Ｔの連結装置３は、各脚柱２の所要部に固定される取付金具４と、取付金具４に一端部５ａが上下方向回動可能に枢着された連結杆５と、連結杆５の他端部５ｂに上下方向回動可能に枢着され、脚柱２に対し着脱自在なクランプ６とからなるもので、通常時は、連結杆５を脚柱２とほぼ平行するように折り畳んで、クランプ６を脚柱２に取着することによって連結装置３を収納状態としているから、嵩張らず、作業台Ｔを通常の積み重ねない状態で使用する時に連結装置３が作業台Ｔから殆ど突出しないので作業に支障を来すことがない。 As described above, the connection device 3 for the work table T as shown in FIGS. 1 to 7 has the mounting bracket 4 fixed to the required portion of each pedestal 2 and the one end portion 5a of the mounting bracket 4 being rotatable in the vertical direction. The connecting rod 5 is pivotally attached to the other end portion 5b of the connecting rod 5 so as to be pivotable in the vertical direction. 5 is folded so that it is substantially parallel to the pedestal 2, and the clamp 6 is attached to the pedestal 2, so that the coupling device 3 is stored, so that it is not bulky and the work table T is used without being stacked normally. When connecting, the connecting device 3 hardly protrudes from the work table T, so that the work is not hindered.

また、図１〜図５の実施形態のように、同じ構造の作業台を積み重ねて使用する際に、下段側の作業台は連結装置３を設けない通常の作業台でもよいが、その場合には連結装置３を設けない通常の作業台と、連結装置３を設けた作業台Ｔとを選り分けて積み重ね作業を行なわねばならない。然るに、連結装置３を設けた作業台Ｔのみを図３に示すようにランダムに同じ構造の作業台Ｔ，Ｔを積み重ねればよく、積み重ね作業を迅速に行なうことができ、また同じ構造の作業台Ｔのみを量産すればよいから、製作費を低減することができる。また同じ作業台Ｔを積み重ねる時は、上下作業台Ｔ，Ｔの何れか一方の作業台Ｔの連結装置３のクランプ６を脚柱２から外して反転し、他方の作業台Ｔの対向する脚柱２に取着することにより連結装置３が連結状態となるから、連結装置３の連結操作が簡単となり、上下の作業台Ｔ，Ｔの上下に対向する脚柱２，２どうしを迅速容易に連結することができて、作業性が良好となる。 In addition, when the work tables having the same structure are stacked and used as in the embodiment of FIGS. 1 to 5, the work table on the lower stage side may be a normal work table without the connection device 3, but in that case In this case, a normal work table without the connecting device 3 and a work table T with the connecting device 3 are selected and stacked. However, it is only necessary to stack the work tables T and T having the same structure on the work table T provided with the connecting device 3 at random as shown in FIG. 3, and the stacking work can be quickly performed. Since only the table T needs to be mass-produced, the production cost can be reduced. When stacking the same work table T, the clamp 6 of the connecting device 3 of one of the upper and lower work tables T, T is removed from the pedestal 2 and inverted, and the opposite leg of the other work table T is reversed. Since the connecting device 3 is in the connected state by being attached to the column 2, the connecting operation of the connecting device 3 is simplified, and the leg columns 2, 2 facing the upper and lower work tables T, T are quickly and easily connected. It can be connected, and workability is improved.

また図１〜図５によって説明した実施形態の作業台Ｔの連結装置３では、取付金具４が各脚柱２の下端部に固定され、この脚柱２の上部側にクランプ６が取り付けられているため、２台の作業台Ｔ，Ｔを積み重ねた時に、上段側作業台Ｔに設けてある各連結装置３のクランプ６をこの上段側作業台Ｔの脚柱２の主脚柱２ａから外して、連結杆５を下向きに１８０°反転し、そのクランプ６を下段側の作業台Ｔの対向する脚柱２の主脚柱２ａの上端部に取着することによって連結装置３を連結状態としているが、取付金具４を各脚柱２の上端部に固定し、この脚柱２の下部側にクランプ６を取り付けておいて、２台の作業台Ｔ，Ｔを積み重ねた時に、下段側作業台Ｔに設けてある各連結装置３のクランプ６をこの下段側作業台Ｔの脚柱２の主脚柱２ａから外して、連結杆５を上向きに１８０°反転し、そのクランプ６を上段側の作業台Ｔの対向する脚柱２の主脚柱２ａの下端部に取着することによって連結装置３を連結状態とするようにしてもよい。その場合には、上段側の作業台Ｔは、連結装置３を設けない通常の作業台としてもよく、そうすることにより上に積み重ねる作業台の重量を軽くすることができる。 In addition, in the connection device 3 of the work table T according to the embodiment described with reference to FIGS. 1 to 5, the mounting bracket 4 is fixed to the lower end portion of each leg column 2, and the clamp 6 is attached to the upper side of the leg column 2. Therefore, when the two work tables T, T are stacked, the clamp 6 of each coupling device 3 provided on the upper work table T is removed from the main pedestal 2a of the pedestal 2 of the upper work table T. Then, the connecting rod 3 is turned 180 ° downward, and the clamp 6 is attached to the upper end of the main leg 2a of the opposite leg 2 of the lower work table T, thereby bringing the connecting device 3 into a connected state. However, when the mounting bracket 4 is fixed to the upper end of each pedestal 2 and the clamp 6 is attached to the lower side of the pedestal 2 and the two work tables T and T are stacked, the lower side work The clamp 6 of each coupling device 3 provided on the table T is connected to the main leg of the pedestal 2 of the lower work table T. 2a, the connecting rod 5 is inverted 180 ° upward, and the clamp 6 is attached to the lower end of the main leg 2a of the opposite leg 2 of the upper work table T, thereby connecting the connecting device 3 You may make it be a connection state. In that case, the work table T on the upper stage may be a normal work table without the connection device 3, and by doing so, the weight of the work table stacked on top can be reduced.

但し、この実施形態のように、取付金具４を各脚柱２の下端部に固定し、この脚柱２の上部側にクランプ６を取り付けておいて、２台の作業台Ｔ，Ｔの積み重ね時に、上段側作業台Ｔにある各連結装置３のクランプ６をこの上段側作業台Ｔの脚柱２の主脚柱２ａから外して、連結杆５を下向きに１８０°反転し、下段側の作業台Ｔの対向する脚柱２の主脚柱２ａの上端部に取着して連結装置３を連結状態とするようにした場合は、各連結装置３のクランプ６の最終的な取着作業を下段の作業台Ｔ側、つまり低い位置で行なえるため、作業性が一層良好となる。 However, as in this embodiment, the mounting bracket 4 is fixed to the lower end of each pedestal 2, and the clamp 6 is attached to the upper side of the pedestal 2, and the two work tables T and T are stacked. Sometimes, the clamp 6 of each connecting device 3 on the upper work table T is removed from the main pedestal 2a of the pedestal 2 of the upper work table T, and the connecting rod 5 is inverted 180 ° downward, When the connecting device 3 is connected to the upper end of the main pedestal 2a of the opposite pedestal 2 of the work table T, the final attaching operation of the clamp 6 of each connecting device 3 is performed. Can be performed at the lower work table T side, that is, at a low position, the workability is further improved.

また、上述した実施形態の連結装置３では、作業台Ｔを積み重ねた時に、例えば図５に示すように、上段側作業台Ｔにある連結装置３のクランプ６をこの上段側作業台Ｔの脚柱２から外して、連結杆５を、天板１の長手方向に延びる枢着ピン８を中心に図５の矢印Ｐで示す下向きに１８０°反転し、下段側の作業台Ｔの対向する脚柱２の上端部に取着して連結装置３を連結状態とするようにしているが、連結杆５を反転させるのに、図９に示す実施形態のように天板１の長手方向と直交する方向に延びる枢着ピン８′を中心に連結杆５を反転させるようにしてもよい。 Further, in the coupling device 3 of the above-described embodiment, when the work tables T are stacked, for example, as shown in FIG. 5, the clamp 6 of the connection device 3 on the upper work table T is attached to the legs of the upper work table T. Detaching from the column 2, the connecting rod 5 is inverted 180 ° downward as indicated by the arrow P in FIG. 5 around the pivot pin 8 extending in the longitudinal direction of the top plate 1, and the opposite legs of the work table T on the lower stage side. Although it connects to the upper end part of the pillar 2 and the connection apparatus 3 is made into a connection state, in order to reverse the connection rod 5, it is orthogonal to the longitudinal direction of the top plate 1 like embodiment shown in FIG. The connecting rod 5 may be inverted around a pivot pin 8 ′ extending in the direction of movement.

即ち、図９の実施形態にあっては、連結装置３の取付金具４をその長手方向の中央部で二分割して、一方の分割体４ａを脚柱２の下端部に取り付け、他方の分割体４ｂを連結杆５の一端部５ａに固定すると共に、両分割体４ａ，４ｂを天板１の長手方向と直交する方向に延びる枢着ピン８′で枢支連結して、連結杆５が枢着ピン８′を中心として図９の矢印Ｑ方向又はその逆方向に回転できるようにしたもので、作業台Ｔを積み重ねた時には、図９の仮想線で示すように、上段側作業台Ｔにある連結装置３のクランプ６を上段側作業台Ｔの脚柱２から外し、連結杆５を、天板１の長手方向と直交する方向に延びる枢着ピン８′を中心に矢印Ｑで示す方向（又は逆方向）に１８０°反転し、そのクランプ６を下段側の作業台Ｔの対向する脚柱２の上端部に取着して連結装置３を連結状態としている。 That is, in the embodiment of FIG. 9, the mounting bracket 4 of the coupling device 3 is divided into two at the center in the longitudinal direction, one divided body 4 a is attached to the lower end of the pedestal 2, and the other divided The body 4b is fixed to one end portion 5a of the connecting rod 5, and both the divided bodies 4a and 4b are pivotally connected by a pivoting pin 8 'extending in a direction perpendicular to the longitudinal direction of the top plate 1, so that the connecting rod 5 9 can be rotated around the pivot pin 8 'in the direction of the arrow Q in FIG. 9 or in the opposite direction. When the work tables T are stacked, as shown by the phantom lines in FIG. The clamp 6 of the connecting device 3 is removed from the pedestal 2 of the upper work table T, and the connecting rod 5 is indicated by an arrow Q about a pivot pin 8 'extending in a direction perpendicular to the longitudinal direction of the top plate 1. Inverted 180 degrees in the direction (or the reverse direction), the clamp 6 is the opposite pedestal 2 of the lower work table T The connecting device 3 and attached to an upper end portion is in the connection mode.

図１０は本発明に係る作業台Ｔの他の実施形態を示すもので、作業台Ｔを上下２段に積み重ねたものを二組、所要間隔をおいて並置し、一方の組の上段側作業台Ｔの天板１と、他方の組の上段側作業台Ｔの天板１とを所要長さの連結用天板２８により連結するようにした実施形態である。図１１には連結用天板２８を詳細に図示しており、(a) は連結用天板２８を桁側側面から見た正面図、(b) は(a) に示す連結用天板２８の一部平面図、(c) は連結用天板２８を妻側側面から見た正面図、(d) は図１０の(b) の矢印Ｙで示す部分の拡大平面図である。 FIG. 10 shows another embodiment of the work table T according to the present invention. Two sets of work tables T stacked in two upper and lower stages are juxtaposed at a required interval, and one set of upper work This is an embodiment in which the top plate 1 of the table T and the top plate 1 of the other set upper work table T are connected by a connecting top plate 28 having a required length. FIG. 11 shows the connecting top plate 28 in detail. (A) is a front view of the connecting top plate 28 as seen from the side of the beam side, and (b) is a connecting top plate 28 shown in (a). (C) is the front view which looked at the top plate 28 for connection from the wife side surface, (d) is the enlarged plan view of the part shown by the arrow Y of (b) of FIG.

上記連結用天板２８の桁側側面の両端部には、作業台Ｔの天板１の上面側に形成された係合穴３０（図１１の(c) 参照）に係脱可能に係合する連結手段２９が設けられている。この連結手段２９は、図１１の(a) に示すように、倒立Ｌ字状でその水平軸部３１ａ先端から作業台Ｔの天板１の上面に形成された係合穴３０に嵌入係合する係合部３１ｂを垂下した連結部材３１を備えている。この連結部材３１は、その垂下軸部３１ｏが取付ブラケット３２にて連結用天板２８の前後桁側側面に回転及び上下動自在に取付けられ、且つこの連結部材３１の垂下軸部３１ｏの下端と取付ブラケット３２との間に介装されたばね３３にて常時下方に付勢されている。また、取付ブラケット３２には非連結時に係合部３１ｂを連結用天板２８の桁側側面に沿わせた状態で嵌入保持する保持部３４が設けられている。 Engageably engages with engagement holes 30 (see FIG. 11C) formed on the upper surface side of the top plate 1 of the work table T at both ends of the side surface of the connecting top plate 28. Connecting means 29 is provided. As shown in FIG. 11 (a), the connecting means 29 is an inverted L-shape and is fitted into an engagement hole 30 formed on the top surface of the top plate 1 of the work table T from the tip of the horizontal shaft portion 31a. The connecting member 31 is provided to suspend the engaging portion 31b. The connecting member 31 has a hanging shaft portion 31o attached to a front and rear girder side surface of the connecting top plate 28 by a mounting bracket 32 so as to be rotatable and vertically movable, and a lower end of the hanging shaft portion 31o of the connecting member 31 and The spring 33 interposed between the mounting bracket 32 and the mounting bracket 32 is always urged downward. In addition, the mounting bracket 32 is provided with a holding portion 34 that fits and holds the engaging portion 31b along the spar-side surface of the connecting top plate 28 when not connected.

しかして、連結時には図１１の(a) に矢印ａで示すように連結手段２９の連結部材３１を引き上げて、係合部３１ｂを保持部３４から抜き出し、矢印ｂで示すように垂下軸部３１ｏ周りに回転させ、図１１の(d) に示すように係合部３１ｂを作業台Ｔの天板１の係合穴３０に位置合わせして引上げを解除することにより、係合部３１ｂを係合穴３０に係合させて、連結用天板２８と作業台Ｔの天板１とを所定間隔あけた状態で面一に（同じレベルに）互いに連結することができる。 Thus, at the time of connection, the connecting member 31 of the connecting means 29 is pulled up as shown by an arrow a in FIG. 11 (a), the engaging portion 31b is pulled out from the holding portion 34, and the hanging shaft portion 31o is shown as shown by an arrow b. The engagement portion 31b is engaged by rotating it around and aligning the engagement portion 31b with the engagement hole 30 of the top plate 1 of the work table T as shown in FIG. By engaging with the joint hole 30, the connecting top plate 28 and the top plate 1 of the work table T can be connected to each other in a flush manner (at the same level) with a predetermined distance therebetween.

上記のように作業台Ｔを上下２段に積み重ねたものを例えば２組、所要間隔をおいて並置し、一方の組の上段側作業台Ｔの天板１と、他方の組の上段側作業台Ｔの天板１とを連結用天板２８によって連結することにより、作業床面積が広くなり、作業性が格段に向上することになる。また、この場合、連結用天板２８の下方にスペースができるため、資材等を跨ぐことができるなどのメリットがある。 For example, two sets of the work tables T stacked in two upper and lower stages as described above are juxtaposed at a necessary interval, and the top plate 1 of the upper work table T of one set and the upper work of the other set. By connecting the top plate 1 of the table T with the connecting top plate 28, the work floor area is increased, and the workability is remarkably improved. Further, in this case, since a space is formed below the connecting top plate 28, there is a merit that materials and the like can be straddled.

図１０の(a) の実施形態では、各組の上段側作業台Ｔの天板１どうしを連結用天板２８で連結しただけであるが、同図の(b) に示すように、各組の下段側作業台Ｔの天板１どうしも、下段側連結用天板２８によって連結するようにしてもよく、そうすることによって下段側連結用天板２８の上に資材等を載せたまま移動させることも可能となる。この下段側連結用天板２８を各組下段側作業台Ｔの天板１に連結する方法は、上述したような上段側連結用天板２８を各組上段側作業台Ｔの天板１に連結する場合と同様である。 In the embodiment of FIG. 10 (a), the top plates 1 of the upper work table T of each set are simply connected by the connecting top plate 28. As shown in FIG. The top plates 1 of the lower work table T may be connected to each other by the lower connection top plate 28, so that materials and the like are placed on the lower connection top plate 28. It can also be moved. The method of connecting the lower-stage connecting top plate 28 to the top plate 1 of each set lower-stage work table T is as described above by connecting the upper-stage connecting top plate 28 to the top plate 1 of each set upper-stage work table T. It is the same as the case of connecting.

尚、図１０の(a) ，(b) では、上段側作業台Ｔと下段側作業台Ｔの脚柱２どうしを連結する連結装置３、及び各作業台Ｔの脚柱２下端部に設けられるキャスター１４については図示を省略している。 10 (a) and 10 (b), the connecting device 3 for connecting the upper work platform T and the lower work platform T's pedestals 2 to each other, and the lower end of the work 2's pedestal 2 are provided. The caster 14 to be used is not shown.

以上の実施形態では、２台の作業台Ｔを積み重ねる場合について説明したが、３台以上の作業台Ｔを積み重ねる場合にも、連結装置３の操作は２台の作業台Ｔと同様であって、例えば３台の場合には、１段目の作業台Ｔの連結装置３はそのままにしておいて、２段目の作業台Ｔの各連結装置３によって２段目の作業台Ｔと１段目の作業台Ｔとを連結し、３段目の作業台Ｔの各連結装置３によって３段目の作業台Ｔと２段目の作業台Ｔとを連結すればよい。 In the above embodiment, the case where two work tables T are stacked has been described. However, when three or more work tables T are stacked, the operation of the connecting device 3 is the same as that of the two work tables T. For example, in the case of three units, the connecting device 3 of the first stage work table T is left as it is, and each connection device 3 of the second stage work table T is connected to the second stage work table T and the first stage work table T. The third work table T may be connected to the second work table T by connecting the third work table T to each other using the connecting devices 3 of the third work table T.

また、以上説明した実施形態の作業台Ｔでは、各脚柱２が伸縮可能で、折り畳み可能に構成されているが、各脚柱２が伸縮不能で折り畳み不能な構造の作業台にも本発明は適用可能である。 Further, in the work table T of the embodiment described above, each pedestal 2 is configured to be extendable and foldable, but the present invention is also applied to a work table having a structure in which each pedestal 2 is not extendable and cannot be folded. Is applicable.

(a) は本発明に係る作業台の正面図、(b) は平面図である。(a) is a front view of a worktable according to the present invention, and (b) is a plan view. (a) は本発明に係る作業台の側面図、(b) はキャスター車輪止めを示す側面図、(c) はその正面図、(d) はキャスター車輪止めの他の例を示す斜視図である。(a) is a side view of a workbench according to the present invention, (b) is a side view showing a caster wheel stopper, (c) is a front view thereof, and (d) is a perspective view showing another example of a caster wheel stopper. is there. 積み重ねた２台の作業台を連結装置によって連結している状態を示す側面図である。It is a side view which shows the state which has connected the two work platforms stacked | stacked with the connection apparatus. (a) は脚柱の伸縮脚柱とこれに取付金具が取り付けられた連結装置を示す側面図、(b) はクランプの底面図である。(a) is a side view showing a telescopic leg column of a pedestal column and a connecting device with a mounting bracket attached thereto, and (b) is a bottom view of the clamp. 図３の一部を拡大して示す側面図である。It is a side view which expands and shows a part of FIG. (a) は作業台を縦列状態に並べた平面図、(b) は作業台を横列状態に並べた平面図である。(a) is a plan view in which work tables are arranged in a column state, and (b) is a plan view in which work tables are arranged in a row state. (a) は作業台の上に幅狭作業台を載せた実施形態の平面図、(b) は正面図、(c) は側面図である。(a) is a plan view of an embodiment in which a narrow work table is placed on a work table, (b) is a front view, and (c) is a side view. (a) は２つの作業台の上に一つの幅狭作業台を載せた実施形態を示す平面図、(b) は(a) のＸ−Ｘ線断面図、(c) は(a) の側面図である。(a) is a plan view showing an embodiment in which one narrow work table is placed on two work tables, (b) is a cross-sectional view taken along line XX of (a), and (c) is a diagram of (a). It is a side view. 連結装置の他の実施形態を示す図５と同様な側面図である。It is a side view similar to FIG. 5 which shows other embodiment of a connection device. (a) ，(b) は本発明に係る作業台の他の実施形態を示す説明図である。(a), (b) is explanatory drawing which shows other embodiment of the work bench | platform based on this invention. (a) は連結用天板を桁側側面から見た正面図、(b) は(a) に示す連結用天板の一部平面図、(c) は連結用天板を妻側側面から見た正面図、(d) は図１０の(b) の矢印Ｙで示す部分の拡大平面図である。(a) is a front view of the connecting top plate as viewed from the side of the girder, (b) is a partial plan view of the connecting top plate shown in (a), and (c) is the connecting top plate from the side of the wife side. FIG. 11D is an enlarged plan view of a portion indicated by an arrow Y in FIG. 10B. (a) はテーブルリフターを使用して鉄骨梁耐火被覆作業を行なっている状態を示す説明図、(b) は本発明の作業台を２台積み重ねて鉄骨梁耐火被覆作業を行なっている状態を示す説明図である。(a) is an explanatory view showing a state where a steel beam fireproof coating work is being performed using a table lifter, and (b) is a state where two work tables of the present invention are stacked to perform a steel beam fireproof coating work. It is explanatory drawing shown.

符号の説明Explanation of symbols

Ｔ作業台
１天板
２脚柱
２ａ主脚柱
２ｂ伸縮脚柱
３連結装置
３′ 連結装置
４取付金具
４ｏ金具本体部
５連結杆
６クランプ
６ｏクランプ本体部 T work table 1 top plate 2 pedestal 2a main pedestal 2b telescopic pedestal 3 coupling device 3 'coupling device 4 mounting bracket 4o bracket body 5 coupling rod 6 clamp 6o clamp body

Claims

天板の下面側の四隅に夫々脚柱を取り付けてなる作業台において、一つの作業台の天板上に他の作業台の脚柱を載せて積み重ねた時に上下に隣り合う作業台の上下に対応する脚柱どうしを連結する連結装置を備えてなる作業台であって、
前記連結装置は、各脚柱の所要部に取り付けられる取付金具と、この取付金具に一端部が上下方向回動可能に枢着される連結杆と、この連結杆の他端部に上下方向回動可能に枢着され、脚柱に対し着脱自在なクランプとからなるもので、通常時は、連結杆を脚柱とほぼ平行するように折り畳んで、クランプを当該作業台の脚柱に取着することによって連結装置を収納状態とし、作業台を積み重ねた時は、上下に隣り合う作業台の一方の作業台の連結装置のクランプを脚柱から外して反転し他方の作業台の対応する脚柱に取着することによって連結装置を連結状態とするようにしたことを特徴とする作業台。 In the work platform where the pedestal is attached to each of the four corners on the lower surface side of the top plate, when the pedestal of another work table is placed on the top plate of one work table and stacked, A workbench comprising a connecting device for connecting corresponding pedestals ,
The connecting device includes a mounting bracket that is attached to a required portion of each pedestal, a connecting rod that is pivotally attached to the mounting bracket so that one end of the connecting rod is pivotable in the vertical direction, and a vertical rotation at the other end of the connecting rod. It consists of a clamp that is pivotally mounted and detachable from the pedestal. Normally, the connecting rod is folded so that it is almost parallel to the pedestal, and the clamp is attached to the pedestal of the work table. When the connecting device is placed in the stowed state and the work tables are stacked, the connecting device clamp of one work table adjacent to the upper and lower sides is removed from the pedestal and inverted, and the corresponding leg of the other work table is reversed. A work table characterized in that the connecting device is brought into a connected state by being attached to a pillar.

前記連結装置は、取付金具が各脚柱の下端部に固定され、この脚柱の上部側にクランプが取り付けられるようになっていることを特徴とする請求項１に記載の作業台。 2. The workbench according to claim 1 , wherein the coupling device has a mounting bracket fixed to a lower end portion of each pedestal column, and a clamp is attached to an upper side of the pedestal column .

前記連結装置の取付金具は脚柱回りに回動可能に取り付けられることを特徴とする請求項１又は２に記載の作業台。 The workbench according to claim 1 or 2 , wherein the mounting bracket of the coupling device is mounted so as to be rotatable around a leg column .

前記連結装置のクランプはその本体部が長さ変更可能であることを特徴とする請求項１〜３の何れかに記載の作業台。 The work table according to any one of claims 1 to 3 , wherein a length of a main body of the clamp of the coupling device can be changed .

前記連結装置のクランプはパイプクランプからなることを特徴とする請求項１〜４の何れかに記載の作業台。 The workbench according to any one of claims 1 to 4 , wherein the clamp of the coupling device comprises a pipe clamp .

各脚柱の下端部にキャスターを取り付けると共に、天板の上面側の四隅にキャスターの車輪止めを設けてなる請求項１〜５の何れかに記載の作業台。 The work table according to any one of claims 1 to 5, wherein a caster is attached to a lower end portion of each pedestal, and wheel stops of casters are provided at four corners on an upper surface side of the top plate .

一つの作業台の天板上に他の作業台の脚柱を載せて積み重ね、上下に隣り合う作業台の上下に対応する脚柱どうしを連結装置により連結したものを複数組間隔をおいて並置した時に各組の上段側作業台の天板どうしを連結用天板で連結するようにした請求項１〜６の何れかに記載の作業台。 Place and stack the pedestal pillars of the other work benches on the top plate of one work bench, and connect the pillars corresponding to the top and bottom of the work benches that are adjacent to each other up and down with a coupling device. The work table according to any one of claims 1 to 6 , wherein the top plates of the upper work tables of each set are connected by a connection top plate .

各組の上段側作業台の天板どうしを連結用天板で連結すると共に、各組の下段側作業台の天板どうしを連結用天板で連結するようにした請求項７に記載の作業台。 The work according to claim 7 , wherein the top plates of the upper work platforms of each set are connected by a connecting top plate, and the top plates of the lower work tables of each set are connected by a connecting top plate. Stand.