JP5139343B2 - Workbench - Google Patents

Description

  In the present invention, another work table is stacked on the top plate of one work table, and stacked work tables in which pedestals corresponding to the upper and lower sides of the upper and lower work tables are connected by a connecting device are arranged in parallel at intervals of a plurality of sets. Further, the present invention relates to a work table in which the top plates of both stacked work tables are connected by a connecting top plate.

  The applicant of the present invention has previously proposed a work table in which the work tables are stacked in two upper and lower stages and connected by a connecting device so that the top plates of the stacked work tables are connected by a connecting top plate ( Japanese Patent Application No. 2007-320673).

  As described above, in the work table where the work tables are stacked in two upper and lower stages and connected to each other by the connecting device, the table tops of the work tables are connected to each other using the connection table. In the case of the type, since the height of the stacking platform from the ground is considerably high, even if the top plates of both stacking platforms are connected by the connecting top plate, the two-level stacking platform will shake or rattle. As a result, it became unstable, and it was difficult to safely work on the upper workbench and the connecting top plate.

  In view of the circumstances as described above, an object of the present invention is to provide a work table that can hold a two-stage stacking worktable in a stable state by suppressing shaking and rattling of the two-stage worktable as much as possible. Yes.

  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 in which pedestals are attached to the bottom corners of the top plate 1. The other work table T2 is stacked on the top plate 1 of the table T1, and the pillars 2 corresponding to the upper and lower surfaces of the upper and lower work tables T1 and T2 are connected by the connecting device 3 to form a two-stage stacking work table K. Plural sets of the two-stage stacking work tables K are juxtaposed at a predetermined interval in the direction in which the spar side of the top plate 1 is opposed, and two connecting rods 9, 9 is bridged so that the pedestals 2 and 2 of the opposed lower stage work table T1 are coupled to each other, and the top plates 1 and 1 of the opposed upper stage work tables T2 and T2 are coupled by the coupling top plate 10. It is characterized by becoming like this.

  A second aspect of the present invention provides a work table according to the first aspect, wherein a plurality of connecting rods 9, 9 spanned between the lower work tables T1, T1 facing each other of the two-stage stack work tables K, K. The steel cloth board 16 is bridged.

  The work table according to claim 2 is the work table according to claim 2, wherein the top table for connection 10 for connecting the top plates 1 and 1 of the upper work tables T2 and T2 facing the two-stage stacking work tables K and K is provided. The steel cloth plates 17 and 18 are made of a steel cloth plate 18 having a hatch type and a ladder 19, and the ladder 19 has an upper end. Is supported on the steel cloth board 16 spanned between the connecting rods 9 and 9 for connecting the lower work tables T1 and T1. It is characterized by.

  According to a fourth aspect of the present invention, in the workbench according to any one of the first to third aspects, each connecting rod 9 is fixed to each pedestal 2 via a connecting rod fixing tool 33, and the connecting rod fixing tool 33 is a leg. A fitting main body 35 fixed to the leg pillar 2 and a connecting rod 9 fitted to the fitting concave portion 34 are fixed. It consists of a bolt 37 or a pin 47 that is fixed to the main body 35.

  Claim 5 is the workbench according to any one of claims 1 to 3, wherein each connecting rod 9 is provided with a pedestal 2 inside the workbench T1 at a position corresponding to the pedestal 2 of the lower workbench T1. A fixing bracket 11 composed of a pair of side plates 11a, 11a sandwiched from each other is attached, and bolts 14 or pins 56 are interposed between the front ends of the side plates 11a, 11a with the pedestal 2 sandwiched between the side plates 11a, 11a. It is characterized in that the connecting rod 9 is fixed to the pedestal 2 by being inserted.

  The effect of the invention by the above-described solution means will be described with reference numerals in the embodiments described later. According to the invention according to claim 1, the lower stage work table T1 opposed to the two-stage stacking work tables K, K. , T1 and two connecting rods 9, 9 are bridged to connect the pillars 2 and 2 of the lower lower work table T1 to each other so that the two-stage stacking work tables K, K are connected to the work table T1. , T2 can be prevented from shaking and rattling as much as possible, and can be held in an extremely stable state, so that the work on the upper work table T2 and the connecting top plate 10 can be performed safely.

  According to the second aspect of the present invention, a plurality of steel cloth plates 16 are provided on the two connecting rods 9 and 9 spanned between the lower work tables T1 and T1 facing the two-stage stacking work tables K and K. Since the plurality of steel cloth plates 16 laid over the two connecting rods 9 and 9 can be used as a work floor by being bridged, the ceiling for connection between the top plates 1 and 1 of the upper stage work tables T2 and T2 is used. The operation of connecting the plates 10 can be performed easily and safely, and the work floor made of the steel cloth plate 16 can be used as a storage for a material storage place or the like, which is extremely useful.

  According to the invention which concerns on Claim 3, as a top plate 10 for connection which connects the top plates 1 and 1 of the upper stage work platforms T2 and T2 which both the two-stage stacking work platforms K and K oppose, it is made of a plurality of steel. By using the cloth plates 17 and 18, one of the plurality of steel cloth plates 17 and 18 is a hatched steel cloth board 18 with a ladder 19, and the ladder 19 is lowered from the steel cloth board 18. Since the lower end portion of the ladder 19 is supported on the steel cloth plate 16 spanned between the connecting rods 9 and 9 for connecting the lower stage work tables T1 and T1, each two-stage stack work table K is provided. The ladder 19 is to be attached to the inside of the rack, and it is not necessary to hang the ladder from the outside of the two-stage stacking work table K, and it is easy and safe to ascend and descend on the ladder 19, and the two-stage stacking work table There is no need for extra space for ladders around K.

  According to the invention which concerns on Claim 4, each connection rod 9 has the fitting recessed part 34 which fits the connection rod 9 from upper direction inside the pillar 2, and the fixing tool main body 35 fixed to the pillar 2 Then, the connecting rod 9 fitted in the fitting recess 34 can be easily and easily fixed to the pedestal 2 via the connecting rod fixing tool 33 including the bolt 37 or the pin 47 that fixes the fixing tool body 35. . In this case, as the connecting rod 9, a connecting pin 43 is attached to one end of the connecting rod 9 and can be added, so that an arbitrary required when a plurality of sets of two-stage stacking work tables K are juxtaposed at a predetermined interval is used. It is possible to easily cope with the length.

  According to the invention which concerns on Claim 5, the bolt 14 or the pin 56 is inserted between the front-end | tip parts of the both-sides board 11a, 11a in the state which pinched the pillar 2 between the both-sides board 11a, 11a of each fixing bracket 11. Thus, the connecting rod 9 can be easily and fixedly attached to and fixed to the pedestal 2 of the lower work table T1, so that two two-stage work tables K and K can be connected between the lower work tables T1 and T1 facing each other. By connecting the connecting rods 9 and 9 and fixing the connecting rods 9 and 9 to the pedestals 2 and 2 of the lower-side worktables T1 and T1 via the fixing brackets 11, respectively, the two-stage stacking worktables In K and K, the four pedestals 2, 2, 2, and 2 positioned along the connecting rods 9 of the lower work platform T1 and T1 are integrally connected and fixed to each other via the connecting rod 9. Therefore, it effectively suppresses shaking and rattling of worktables T1 and T2, and is extremely stable. It can be held in the state.

  A preferred embodiment of the present invention will be described below with reference to the drawings. FIG. 1A shows a two-stage stacking work table K in which another work table T2 having the same structure is stacked on one work table T1. The front view which looked at from the wife side, (b) is a front view of the state which connected the two-stage stacking work table with the connection apparatus, (a) of FIG. 2 is a front view which shows the work table K which concerns on this invention, 3 (b) is a plan view, FIG. 3 (a) is a front view of the work table K shown in FIG. 2 viewed from the top side of the work table, and FIG. 3 (b) is an XX line of (a). It is sectional drawing.

  As shown in FIG. 1 to FIG. 3, the upper and lower work tables T <b> 1 and T <b> 2 are attached to the top plate 1 on which an operator rides and the four front and rear corners on the lower surface side of the top plate 1. Each of the lower work table T1 corresponds to the upper and lower work tables T1 and T2 when the work table T2 is stacked on the work table T1. A connecting device 3 for connecting the pedestals 2 is provided. As shown in FIG. 3 (b), each work table T1, T2 of this embodiment is divided into left and right two parts, and both divided top plate parts 1a, 1a are pivotally attached by a pivoting part 20. From the horizontal orientation during use, it can be folded in two, and each pedestal 2 can be expanded and contracted and can be folded to the lower surface side of the top board 1 from the used state. It is not limited, and the top plate 1 may not be folded in two, and each pedestal 2 may be inextensible. A caster 46 is attached to the lower end of each pedestal 2.

  As can be seen from FIG. 4, the coupling device 3 provided on each pedestal 2 of the work table T <b> 1 includes a mounting bracket 4 attached to the upper end of the square steel pipe main pedestal 2 a constituting the extendable pedestal 2. A metal pipe arm 5 having one end 5a pivotally attached to the mounting bracket 4 so as to be pivotable in the vertical direction, and pivotally pivoted to the other end 5b of the arm 5 so as to be pivotable in the vertical direction. The arm 6 is composed of a clamp 6 that is detachably attached to a telescopic leg 2b made of square steel pipe that is telescopically inserted into the telescope 2a. Usually, as shown in FIG. 1 is folded downward and attached to the telescopic leg 2b of the leg 2 of the work table T1 to bring the coupling device 3 into the stowed state, and as shown in FIG. In addition, when another work table T2 is stacked on this work table T1, it is removed from the telescopic leg 2b. The arm 5 is rotated 180 ° upward, and the clamp 6 is attached to the upper end of the telescopic leg 2b of the corresponding leg 2 of the upper workbench T2, thereby bringing the connecting device 3 into the connected state. The work table T2 on the side is fixed at a fixed position on the work table T1 on the lower stage side.

  As shown in FIG. 4A, the mounting bracket 4 of the connecting device 3 rotates the cylindrical portion 4a provided on one end side of the bracket main body 4o to the lower end of the telescopic leg 2b of the leg 2. The connecting part 4b at the other end is pivotally attached to the one end 5a of the arm 5 by the pivot pin 7 so as to be fitted and fixed with a fixing screw at a predetermined rotational position. . The clamp 6 is a pipe clamp having a well-known structure used for assembling a steel pipe scaffold using a single pipe, and as shown in FIGS. 4 (a) and 4 (b), A clamp body 6o having one end pivotally attached to the other end 5b by a pivot pin 8, and an arcuate pipe receiver 6a connected to the other end of the clamp body 6o are pivotably opened and closed on one end. An arc-shaped gripping arm 6b that is attached, and a fastening bolt 6c that is pivotally attached to the other end of the arc-shaped pipe receiver 6a and attached to the free end of the gripping arm 6b.

  To assemble a work table as shown in FIGS. 2 and 3 using the work tables T1 and T2 having the above-described configuration, first, as shown in FIG. The other work table T2 is stacked, the clamp 6 of the coupling device 3 provided on each leg column 2 of the lower work table T1 is removed, the arm 5 is rotated 180 ° upward, and the clamp 6 is operated on the upper work. By attaching to the corresponding pedestal 2 of the table T2, the connecting device 3 is connected, thereby forming a two-stage stacking work table K as shown in FIG. 1 (b).

  Then, as shown in FIGS. 2 (a) and 2 (b), two sets of two-stage stacking work tables K and K are juxtaposed at a predetermined interval in the direction in which the girder side of the top plate 1 faces. Between the two two-stage stacking platforms K, K, two connecting rods 9, 9 are bridged so as to connect the pedestals 2 of the opposed lower-stage platform T1, and then both two-stage stacks are stacked. The top plates 1 and 1 of the upper work tables T2 and T2 facing the work tables K and K are connected to each other by a connection top plate 10.

  The connecting rod 9 will be described. The connecting rod 9 is made of a round steel pipe (see FIG. 5). As shown in FIG. 2 (a), the connecting rod 9 is formed from the outer end portion of one two-stage stacking work table K. The length L extends over the outer end of the other two-stage stacking work table K. As shown in FIG. 5, each connecting rod 9 has a work table with respect to the legs 2, 2, 2, 2 of the lower work tables T 1, T 1 facing the two-stage work tables K, K, respectively. Fixing metal fittings 11 are attached to each of the two ends of the connecting rod 9 at two locations in order to be sandwiched and fixed from the inside of T1.

  As shown in FIGS. 6 and 7, each fixing bracket 11 includes a pair of side plates 11a, 11a on both sides having an inner normal interval W2 slightly wider than an outer normal interval W1 on both side surfaces of the square main square pillar 2a. The side plates 11a and 11a are connected to the rear side end portions of the side plates 11a and 11a. Bolt insertion holes 12 are respectively provided at the front end portions of the side plates 11a and 11a. A nut 13 is fixed to the outer end portion of the bolt insertion hole 12, and a rear end surface 11ao of each side plate 11a is formed in an arc shape, and is fixed to the outer peripheral surface of the connecting rod 9 made of a round steel pipe by welding. Further, the horizontal plate 11b is firmly formed by joining the engaging convex pieces a projecting from both left and right end portions to the side plate 11a in a state of being engaged with the engaging concave portions b provided on the rear end surface 11ao of the side plate 11a. Be joined.

  When the two connecting rods 9 and 9 are bridged between the lower working platforms T1 and T1 of the two-stage stacked working tables K and K, as shown in FIG. 3 (a). , Two pedestals 2 and 2 located on the left and right end sides of the lower work tables T1 and T1 opposite to the two stacked work tables K and K are provided on each connecting rod 9 so as to approach from the inside. Each fixing bracket 11 is fitted to the pedestal 2, and the fixing bracket 11 is fitted with the pedestal 2 fitted in the fixing bracket 11 as shown in FIGS. 7 (a) and 7 (b). From the bolt insertion hole 12 of the one side plate 11a, the fixing bolt 14 is screwed into the nut 13 through the bolt insertion hole 12 of the other side plate 11a and tightened to tighten the connecting rod 9 on both side plates 11a, 11a of the fixing bracket 11. It fixes to the main pedestal 2a of the pedestal 2 in the state clamped by. The fixing bolt 14 is a butterfly bolt.

  At this time, if the connecting rod 9 is simply clamped by the both side plates 11a, 11a of the fixing bracket 11, the connecting rod 9 may be displaced downward, as shown in FIG. 7 (a) and FIG. A stopper (pedestal) 15 that supports the connecting rod 9 is attached to the lower end portion of the main pillar 2a of the pedestal column 2 where the connecting rod 9 is attached. In this embodiment, the bolts 14 and nuts 13 are used to attach the fixing bracket 11 to the pedestal 2. However, the bolts 14 and nuts 13 are not limited to these, and pins are used. Also good. That is, instead of the bolts 14, the pins 56 may be inserted into the bolt insertion holes 12, 12 of the side plates 11 a, 11 a of the fixing bracket 11 as shown in FIG. In this case, a hole 57 is formed in the distal end portion of the pin 56 in the radial direction, and the hole 57 is inserted into a stopper 59 made of a sphere through a coil spring 58. The pin 56 protrudes about half from the outer peripheral surface of the pin 56 to prevent the pin 56 from coming out. When the pin 56 is attached or detached, the stopper 59 is pushed into the hole 57 against the coil spring 58.

  As described above, the two connecting rods 9 and 9 are bridged between the two lower stacked working tables T1 and T1 of the two-stage stacked working tables K and K, and the two connecting rods 9 and 9 are fixed to the fixing bracket 11 respectively. Are fixed to the pedestals 2 and 2 of the lower work platform T1 and T1, so that the two stacked work tables K and K are located along the connecting rods 9 of the lower work tables T1 and T1. The pedestals 2, 2, 2, and 2 are integrally connected and fixed to each other via the connecting rod 9, so that the shaking and backlash of the work tables T1 and T2 are surely suppressed, and an extremely stable state is achieved. Retained.

  In this way, after connecting the two connecting rods 9 and 9 between the two lower stacked working platforms T1 and T1 facing each other, the two connecting rods 9 and 9 are connected to each other. As shown in FIG. 3A, a plurality of, for example, three steel cloth boards (steel scaffold boards) 16 are bridged. As can be seen from FIGS. 3 (b) and 5 (d), each steel cloth plate 16 has a pair of locking hooks 16b attached to both ends of the cloth plate body 16a. Is locked to the connecting rod 9.

  Thereafter, the top plates 1 and 1 of the upper side work tables T2 and T2 facing the two-stage stacking work tables K and K are connected to each other by the connection top plate 10. The connecting operation can be performed safely and easily by using the plurality of steel cloth plates 16 spanning the two connecting rods 9 and 9 as a work floor as described above.

  As the connecting top plate 10, a plurality of steel cloth plates 17 (three in the embodiment) as shown in FIG. 8 (a) and a hatch type steel with a ladder 19 as shown in (b) are shown. One fabric board 18 is used. The steel cloth board 17 shown in (a) has an L-shaped cross section composed of a horizontal piece 22a and a vertical piece 22b at both ends of the cloth board main body 21, respectively. A connecting member 22 that engages with a girder side end is integrally attached, and stopper pin insertion holes 23 are provided at both ends of the horizontal piece 22a.

  A steel cloth board 18 shown in FIG. 8B is provided with a hatch (opening) 24 on one end side of the cloth board main body 21 and a work floor 25 for opening and closing the hatch 24 is pivotally attached to the cloth board main body 21. The upper end portion of the ladder 19 is pivotally attached to the lower surface side of the cloth board main body 21 so that it can be folded on the lower surface side of the cloth board main body 21. The other structure is shown in FIG. The structure is exactly the same as that of the steel cloth board 17. The ladder 19 is folded to the lower surface side of the cloth board main body 21 to be stored.

  When the steel cloth plates 17 and 18 are attached, the L-shaped connecting members 22 of the steel cloth plates 17 and 18 are engaged with the end portions of the top plate 1 of the upper workbench T2 so as to be horizontal. The piece 22a is placed on the top plate 1, and the stopper pin 26 may be inserted into the pin hole 27 provided in the top plate 1 from the stopper pin insertion hole 23. It should be noted that the top plate 1 may be inserted using the anti-slip holes 28 (see FIG. 2B) provided in advance in the top plate 1 without specially providing the pin holes 27. .

  And when attaching the steel cloth board 18 with the ladder 19, the ladder 19 is rotated downward as shown in FIG. As shown in FIGS. 2 (a) and 3 (a), the lower end portion is supported on a steel cloth board 16 spanned between connecting rods 9 and 9 for connecting the lower work tables T1 and T1. Like that. Although the ladder 19 is shown in FIG. 8 (b) as a structure that does not expand and contract, as shown in FIG. 2 (a) and FIG. 3 (a), an extension member is provided at the lower end of the ladder body 19a. It can be set as the structure which can connect 19b and can change leg length.

  As described above, a plurality of steel cloth plates 16 are bridged over the two connecting rods 9 and 9 spanned between the two lower stacking platforms K and K, which are opposed to the lower platform T1 and T1. Thus, the work floor of the steel cloth plate 16 spanned between the two connection rods 9 and 9 can be worked, so that the operation of connecting the connection top plate 10 between the top plates 1 and 1 of the upper work tables T2 and T2 is performed. It can be easily and safely performed, and the work floor made of the steel cloth board 16 can be used as a storage for a material storage place or the like, which is extremely useful.

  Further, a plurality of steel cloth plates 17 and 18 are used as the connecting top plate 10 for connecting the top plates 1 and 1 of the upper side work tables T2 and T2 facing the two-stage stacking work tables K and K. By making one of the plurality of steel cloth plates 17 and 18 a hatched steel cloth board 18 with a ladder 19, the ladder 19 is lowered from the steel cloth board 18 so that the lower end of the ladder 19 is Since the lower work platform T1 and T1 are supported on the steel cloth plate 16 spanned between the connecting rods 9 and 9, the ladder 19 is attached to the inside of each two-stage stacking work table K. Therefore, it is not necessary to hang a ladder from the outside of the two-stage stacking work table K, and it is easy and safe to ascend and descend on the ladder 19, and there is an extra ladder-hanging work around the two-stage stacking work table K. Space is unnecessary.

  In the work table of this embodiment, left and right leg columns 2 and 2 that can be expanded and contracted are provided on the work tables T1 and T2, respectively, at the left and right end portions on the front end side and the rear end side on the lower surface side of the top plate 1. However, in FIG. 4, reference numeral 29 denotes a connecting member for connecting the main leg pillars 2 a and 2 a of the left and right pedestal pillars 2, 2. There is provided a stopper rod 30 for fixing the telescopic leg 2b that is telescopically inserted in 2a at a required expansion / contraction position, and this stopper rod 30 forms a handle whose front end portion 30a is L-shaped. The distal end portion 30b is inserted into a leg length adjusting hole (not shown) provided in the telescopic leg column 2b at a constant pitch from the main leg column 2a side, and normally enters the leg length adjusting hole by springs 31 and 32. It is so energized. The stopper rod 30 is provided at a symmetrical position on the lower side of the connecting member 29 so that the handles 30a and 30a of the stopper rods 30 and 30 can be operated simultaneously.

  Further, the connecting device 3 having the structure shown in FIG. 4 described above is merely an example, and the connecting device 3 is not limited to this. The connecting pillars 2 corresponding to the upper and lower sides of the upper and lower work tables T1 and T2 are connected to each other. As long as it does, it may be a coupling device having any configuration.

  Further, in the above-described embodiment, as shown in FIGS. 5 and 6, the fixing bracket 11 is attached to the connecting rod 9, and the connecting rod 9 is attached to the pedestal 2 of the lower work table T <b> 1 via the fixing bracket 11. 9 to 12 show a connecting rod fixing tool 33 for fixing the connecting rod 9 to the pedestal 2 of the lower work table T1. FIG. 9 (a) is a plan view showing a state in which two connecting rods 9, 9 are fixed to a connecting rod fixing tool 33 attached to the pedestal 2 (main pedestal 2a) of the lower work table T1. ) Is a front view of the portion indicated by arrow A in (a), (c) is a side view as seen from arrow B in (b), and (a) in FIG. 10 is an enlarged front view of the connecting rod fixture 33. FIG. 11B is a plan view, FIG. 11C is a left side view, FIG. 11A is a plan view showing the connecting rod 9, and FIGS. 11B and 9C are end connecting rods 9a and 9b. 12 (a) is an enlarged view of the portion shown in FIG. 9 (a), and FIGS. 12 (b) and (c) are enlarged views of FIGS. 9 (b) and 9 (c), respectively. is there.

  The connecting rod fixing tool 33 includes a fixing body 35 having a fitting recess 34 for fitting the connecting rod 9 from above inside the pedestal 2, and a nut 36 provided below the fitting recess 34. The fixing bolt 37 is inserted into the bolt insertion hole 42 of the connecting rod 9 fitted in the fitting recess 34 from above, and is screwed into the nut 36 and fastened. Thus, the connecting rod 9 is fixed. The fixing bolt 37 is a knob bolt.

  Referring to FIG. 10, the fixture main body 35 includes a pair of side plate portions a, a and a connection plate portion b connecting the side plate portions a, a as viewed in plan view. It is formed in a substantially U-shape, and a partition plate c is interposed between the side plate portions a and a, and both side plate portions a positioned between the partition plate c and the connecting plate portion b. , A is formed with a substantially semicircular fitting recess 34 in the front view, and a mounting member 38 is fixed over the lower ends of the both side plate portions a, a, and the nut is attached to the mounting member 38. 36 is attached. In the fixture main body 35, a space portion facing the open end d on the opposite side of the connecting plate portion b across the partition plate c forms a leg pillar fitting portion 39. The main pedestal 2a of the pedestal 2 of the side workbench T1 is fitted to the main pedestal 2a (the main pedestal 2a is indicated by hatching with a two-dot chain line in FIG. A fixing bolt 41 is inserted into the bolt insertion holes 40, 40 provided in the section, and screwed into a nut 45 fixed to the outer end portion of one bolt insertion hole 39 to be fastened. It is fixed to the main leg 2a of the column 2. The fixing bolt 41 is also a knob bolt.

  The connecting rod 9 of this embodiment is formed in a predetermined length as shown in FIG. 11 (a), and the bolt insertion hole 42 through which the fixing bolt 37 is inserted is provided at the predetermined location. In addition, a connecting pin 43 for connecting the connecting rod having a known structure is attached to one end of the connecting rod 9. When two connecting rods 9 are connected, for example, when the connecting pin 43 attached to one end of one connecting rod 9 is inserted into the other end of the other connecting rod 9, the connecting pin 43 is caused by a spring biasing force. An engaging protrusion (not shown) that can be protruded and retracted from the outer peripheral surface of the connecting member engages with an engaging hole 44 provided on the other end side of the connecting rod 9 to connect the connecting rods 9 and 9 together. When separating both the connecting rods 9, 9, the engaging projections engaged with the engaging holes 44 may be pushed inward against the spring biasing force.

  11 (b) and 11 (c) show connecting rods 9a and 9c for end connection, and the connecting rod 9a is a connecting pin 43 attached to one end of the connecting rod 9 shown in FIG. 11 (a). The same connecting pin 43 as that at one end of the connecting rod 9 is attached to one end of the connecting rod 9b, and the connecting pin 43 is connected to the connecting rod 9b. They are connected by being inserted into the other end. Also, like the connection rod 9, the bolt insertion hole 42 through which the fixing bolt 37 is inserted is provided at one end of the connection rod 9a, and the engagement protrusion engages and disengages at the other end portion. A hole 44 is provided, and a bolt insertion hole 42 through which the fixing bolt 37 is inserted is provided at the end opposite to the connection pin 43 in the connection rod 9b.

  When the connecting rod fixture 33 is attached to the pedestal 2 of the lower work table T1, as shown in FIGS. 10 (a) to (c) and FIGS. 12 (a) to (c), the fixture main body 35 is attached. Are fitted into the main pedestal 2a of the pedestal 2, the fixing bolts (knob bolts) 41 are inserted into the bolt insertion holes 40, 40 of the side plates a, a, and one bolt is inserted. The connecting rod fixing tool 33 is fixed to the pedestal 2 by screwing into the nut 45 at the outer end of the hole 39 and fastening. In addition, in order to attach and fix the connecting rod fixing tool 33 to the pedestal 2, not only the bolt 41 and the nut 45 but also a pin may be used. That is, instead of the bolt 41, the pin 52 may be inserted into the bolt insertion holes 40, 40 of the both side plates a, a of the fixture main body 35 as shown in FIG. In this case, a hole 53 is formed in the radial direction at the tip of the pin 52, and a stopper 55 made of a sphere is fitted into the hole 53 via a coil spring 54. It protrudes about half from the outer peripheral surface of the pin 52 to prevent the pin 52 from coming off, and when the pin 52 is attached or detached, the stopper 55 may be pushed into the hole 53 against the coil spring 54.

  In order to connect the connecting rod 9 to the connecting rod fixture 33 attached to the pedestal 2 of the lower-side worktable T1 as described above, two pairs of two-stage stacked worktables K juxtaposed at a predetermined interval are used. The connecting rods 9 and 9 are bridged so as to connect the pedestals 2 of the opposed lower work table T1 to each other, and the connecting rods 9 are fixed as shown in phantom lines in FIG. 10 (a). After fitting into the fitting recess 34 of the tool body 35 from above, as shown in FIGS. 12A and 12B, the fixing bolt 37 is inserted into the bolt insertion hole 42 of the connecting rod 9 from above. Then, the connecting rod 9 is fixed to the connecting rod fixing tool 33 by screwing and fastening to a nut 36 provided below the fitting recess 34, and the connecting rod 9 is connected via the connecting rod fixing tool 33. Can be fixed to the pedestal 2 of the lower work table T1. In this case, since the connecting rod 9 can be added by attaching the connecting pin 43 to one end portion, any length required when a plurality of sets of two-stage stacking work tables K are juxtaposed at a predetermined interval. Can be easily accommodated.

  In the connecting rod fixing tool 33 of the embodiment described with reference to FIGS. 9 to 12, in order to fix the connecting rod 9 fitted in the fitting concave portion 34 of the fixing device main body 35 to the fixing tool main body 35, A nut 36 is attached to the lower end, and a bolt insertion hole 42 is provided at a predetermined position in the connecting rod 9, and the connecting rod 9 is fitted into the fitting recess 34 of the fixture main body 35. The fixing bolt 37 is inserted from above the bolt insertion hole 42 and screwed into the nut 36 for fastening. However, instead of such a fixing bolt 37, a fixing pin can be adopted. .

  As an example of the fixing pin, as shown in FIG. 13, a pin main body portion 47a extending in the vertical direction, an arm portion 47b bent from the upper end portion thereof and horizontally extending, and projecting downward from the tip end portion thereof. The pin 47 for fixing which consists of the latching | locking part 47c is used, and the pin main-body part 47a of this pin 47 can be freely rotated to the pin insertion hole 49 of the attachment member 48 attached to the connection board part b of the fixing tool main body 35, and can be rotated up and down. The pin body 47a is slidably inserted and supported, and a coil spring 51 is interposed between a stopper 50 and a mounting member 48 provided at the lower end of the pin body 47a to constantly bias the pin body 47a downward, The connecting rod 9 fitted in the fitting recess 34 of the main body 35 is held and fixed by the arm portion 47b and the locking portion 47c, and the connecting rod 9 is fitted into the fitting concave portion 34 of the fixture main body 35. When removing it, as shown by the phantom line in FIG. 13, the fixing pin 47 is pulled up and rotated against the urging force of the coil spring 51, and the arm portion 47 b side is turned outward of the fixture main body 35. Move it.

  According to the connecting rod fixing tool 33 having the fixing bolt 37 or the fixing pin 47 as described above, the connecting rod 9 can be easily and easily fixed while the structure of the connecting rod fixing tool 33 is simple.

  In the embodiment described with reference to FIGS. 9 to 12, the connecting rod fixing tool 33 is attached and fixed to the pedestal 2 of the lower work table T <b> 1, and then the connecting rod 9 is fitted into the fitting recess 34 of the connecting rod fixing tool 33. The fixing bolts 37 or fixing pins 47 are used for fixing, but the connecting rod fixing tool 33 is first fixed to the connecting rod 9 with the fixing bolts 37 or the fixing pins 47, and this connection is performed. The heel fixing tool 33 may be attached and fixed to the pedestal 2 of the lower work table T1.

(a) is a front view of a two-stage stacking work table in which other work tables with the same structure are stacked on one work table as viewed from the wife side, and (b) is a two-step stacking work table connected by a connecting device. It is a front view of a state. (a) is a front view showing a workbench according to the present invention, and (b) is a plan view. (a) is the front view which looked at the worktable shown in FIG. 2 from the girder side of the worktable top plate, (b) is the XX sectional view of (a). FIG. 2 is an enlarged view of a structural portion corresponding to a portion indicated by an arrow Z in FIG. (a) is a plan view of the connecting rod, (b) is a front view, (c) is an end view, and (d) is an enlarged view of the portion indicated by arrow Y in FIG. (a-1) is a plan view of the fixing bracket, (a-2) is a front view, (a-3) is a side view, (b-1) is a front view showing the side plate of the fixing bracket, (b- 2) is a side view, (c-1) is a front view of the horizontal plate, and (c-2) is a side view. (a) is an enlarged view of the part indicated by the arrow V in (a) of FIG. 2, (b) is a cross-sectional view taken along the line Q-Q of (a), and (c) is fixed by attaching a fixing bracket to the pedestal with a pin. It is a drawing similar to (b) showing an example. (a) is a perspective view showing a steel cloth board as a connecting top board, (b) is a perspective view showing a steel cloth board with a hatch type and a ladder, and (c) is an arrow R in FIG. 2 (a). It is an enlarged view of the part shown by. (a) is a plan view showing a state in which two connecting rods are fixed to a pedestal of a lower work table by a connecting rod fixing tool, and (b) is a front view of a portion indicated by arrow A in (a). (c) is the side view seen from the arrow B of (b). (a) is an enlarged front view of the connecting rod fixing tool, (b) is a plan view, and (c) is a left side view. (a) is a plan view showing a connecting rod, and (b) and (c) are plan views showing an end connecting rod. (a) is an enlarged view of the part shown in (a) of FIG. 9, (b) and (c) are enlarged views of (b) and (c) of FIG. It is the same drawing as (a) which shows the example attached and fixed to a pedestal. It is explanatory drawing which shows embodiment in the case of using a fixing pin instead of a fixing bolt in a connecting rod fixing tool.

T1, T2 Work table 1 Top plate 2 Pedestal column 3 Connecting device 9 Connecting rod 10 Connecting top plate K Two-stage stacking work table 33 Connecting rod fixture 37 Fixing bolt 47 Fixing pin

Claims (5)

  The other work benches are stacked on the top board of one workbench where pedestals are attached to the four corners on the lower surface side of the top board. A stacking platform is formed, and two or more sets of the two stacking platforms are juxtaposed at a predetermined interval in the direction in which the top plate girders face each other. A workbench that is constructed so that the ridges are bridged so as to connect the pedestals of the lower lower work table facing each other, and the top plates of the upper work table facing each other are connected to each other by a connecting top plate.   The workbench according to claim 1, wherein a plurality of steel cloth boards are bridged between two connecting rods bridged between opposing lower-stage worktables of both two-stage stacking worktables.   The top plate for connection that connects the top plates of the upper work tables facing each other in the two-stage stacking work platform is composed of a plurality of steel cloth boards, and one of the plurality of steel cloth boards is a hatch type. It consists of a steel cloth board with a ladder, and the ladder has its upper end pivotally attached to the cloth board body, and its lower end is spanned between the connecting rods connecting the lower work table. The work table according to claim 2, wherein the work table is supported on a plate.   Each connecting rod is fixed to each pedestal via a connecting rod fixing tool, and this connecting rod fixing tool has a fitting recess for fitting the connecting rod from above on the inside of the leg column, and is fixed to the leg column. The workbench according to any one of claims 1 to 3, further comprising: a fixing tool main body; and a bolt or a pin for fixing the connecting rod fitted in the fitting recess to the fixing tool main body.   Each connecting rod is attached with a fixing bracket consisting of a pair of side plates that clamp the pedestal from the inside of the workbench at a location corresponding to the pedestal of the lower workbench. The workbench according to any one of claims 1 to 3, wherein a connecting rod is fixed to a pedestal by inserting a bolt or a pin between tip portions of both side plates in a state of sandwiching the frame.

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