JP5128925B2 - Workbench - Google Patents

Description

  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.

  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.

  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.

  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.

  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.

  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.

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.

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.

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.

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.

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.

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.

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.

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.

  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.

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.

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.

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.

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.

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.

  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.

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. .

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.

  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.

  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.

  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.

  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.

  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.

  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.

  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.

  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.

  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.

  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.

  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. .

  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 '.

  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.

  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.

  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.

  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.

  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.

  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.

  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.

  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.

  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.

  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.

  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.

  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.

  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.

  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.

  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.

  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.

  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.

  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) is a front view of a worktable according to the present invention, and (b) is a plan view. (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. It is a side view which shows the state which has connected the two work platforms stacked | stacked with the connection apparatus. (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. It is a side view which expands and shows a part of FIG. (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) 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) 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. It is a side view similar to FIG. 5 which shows other embodiment of a connection device. (a), (b) is explanatory drawing which shows other embodiment of the work bench | platform based on this invention. (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) 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.

Explanation of symbols

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 (8)

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. 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 . 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 . 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 . The workbench according to any one of claims 1 to 4 , wherein the clamp of the coupling device comprises a pipe clamp . 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 . 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 . 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.

Images