JP5694750B2 - Work platform and bridge scaffolding plate for work platform - Google Patents

Description

  The present invention relates to a work platform and a bridge scaffolding plate for a work platform, and more specifically, a work table that can be configured by connecting a plurality of work tables with a cue bar, and a work table used when constructing the work table. Related to bridge scaffolding board.

  Conventionally, a ladder-shaped main leg is foldably provided on a rectangular top plate, a handle member is foldably attached to the top plate or the main leg, and can be attached to and detached from the long side and / or short side of the top plate. There was a portable worktable provided with a handrail (see, for example, Patent Document 1).

  According to such a work table, the safety of work is improved because the handrail is provided, and a plurality of such work tables are arranged so that the short side or the long side of the top plate are opposed to each other. By interposing an intermediate scaffold between the tables, the work table can be used while being expanded in the width direction or the longitudinal direction.

  Therefore, it is possible to perform wall work during interior / exterior construction over a wide range while ensuring safety.

JP 2001-152659 A

  However, the above-described workbench is not considered at all for the storage of handrails, and it is inconvenient to transport handrails and the like despite being portable. Further, when the work tables are connected, even if the four sides are surely surrounded by the handrails in order to ensure the safety of the work area, the workability is poor if the handrails are separate from the work table.

  In addition, since the size of the work table alone as a base is fixed, even if the work table is expanded in the width direction or the longitudinal direction, the selection range of the width is limited.

  An object of the present invention is to provide a workbench that can solve the above problems.

(1) In the present invention, a scaffold base having legs attached to the opposing short sides of the rectangular scaffolding plate, and a plurality of such scaffold bases arranged side by side so that the long sides face each other. A bridge scaffolding plate interposed between the scaffolding plates, wherein the scaffolding base is a pair of left and right handhold bars attached to both side portions of the leg portion so as to be freely drawn up and down, and A first horizontal bar for preventing stepping off between a pair of left and right handhold bars, and the bridge scaffolding plate can be installed between one handhold bar of each of the left and right scaffolding bases. A work table provided with a bar storage portion for storing the horizontal bar on each of the scaffolding plate of the scaffolding platform and the back surface of the bridge scaffolding plate .

( 2 ) According to the present invention, in the scaffolding of (1 ), the scaffolding plate and the bridge scaffolding plate of the scaffolding base are each configured to be extendable and contractible in the longitudinal direction.

( 3 ) In the present invention, in the scaffold of (1) or (2) , a handrail is detachably attached between the handhold bars facing each other across the long side portion of the scaffold plate in the scaffold. And the horizontal bar, the work area can be enclosed.

( 4 ) In the present invention, in the work table of ( 3 ), the handrail is configured by an interior member and an exterior member that are slidably fitted, and can be expanded and contracted in accordance with a pulling operation of the cue bar. It is characterized by that.

( 5 ) In the present invention, in any one of the scaffolds according to the above (1) to ( 4 ), the clue bar can be held on both sides of at least one leg of the scaffold so that the mounting posture can be adjusted. A bar holding portion is provided.

( 6 ) In the present invention, in a work table in which a plurality of scaffolding platforms each including a rectangular scaffolding plate to which legs are attached are arranged in parallel so that the long sides of the scaffolding plates face each other, A pair of left and right handhold bars attached to both sides of the leg portion so as to be able to be pulled out in the vertical direction, and a horizontal bar for preventing stepping off between the pair of left and right handhold bars, A work platform bridge scaffolding plate that can be interposed between these adjacent scaffolding platforms, and an additional horizontal bar that can be constructed between the cue bars on each adjacent side of the scaffolding platform located on the left and right In addition, a bar storage portion for storing the additional horizontal bar is formed on the back side.

( 7 ) The present invention is characterized in that the work platform bridge scaffolding plate according to the above ( 6 ) is configured to be stretchable in the longitudinal direction.

According to the present invention, when constructing a work table in which a work area is expanded by combining a scaffold base and a bridge scaffold board, the degree of freedom in selecting the area of the work area is increased, and the optimum work area is selected. A work area can be secured. Also, since the first horizontal bar of the scaffolding platform and the second horizontal bar of the bridge scaffolding plate constitute a single continuous handrail, safety is maintained even if the work area is expanded. be able to.
In addition, when a handrail is installed between the cue bars facing each other across the long side of the scaffolding plate, the handrail and the horizontal bar can surround the work area on all four sides of the work table. Therefore, work safety can be further improved.

Furthermore, since the scaffolding plate of the scaffolding platform and the bridge scaffolding plate for the work platform can accommodate the horizontal bar that also serves as a handrail, it is not necessary to transport the horizontal bar separately and is easy to handle. .

It is explanatory drawing of the worktable which consists of a scaffolding base and a bridge scaffolding board. It is a side view of the work bench. It is a top view of the work bench. It is explanatory drawing which shows the combination of the scaffolding base and bridge | bridging scaffolding board of the work bench | platform. It is explanatory drawing of the scaffold board in a scaffold. It is a side view of the scaffolding base which comprises a work table. It is a side view which shows the state which contracted the scaffold board of the same platform. It is explanatory drawing which shows the state to which the bridge scaffolding board was extended. It is explanatory drawing which shows the state which the bridge scaffold board was contracted. It is a top view of the scaffolding which consists of the scaffolding which contracted the scaffolding board, and the bridge scaffolding board. It is explanatory drawing of a horizontal bar. It is explanatory drawing which shows the connection part of the horizontal bar. It is explanatory drawing which shows the connection state of the horizontal bar and a cue stick. It is explanatory drawing which shows the connection state of a cue stick and a handrail. It is explanatory drawing of the scaffolding which concerns on other embodiment. It is explanatory drawing of the stick | rod holding | maintenance part which the scaffold base concerning other embodiment comprises.

  Hereinafter, an embodiment of a work table according to the present invention will be specifically described with reference to the drawings.

  As shown in FIGS. 1 to 4, the work platform according to the present embodiment is a work platform scaffolding plate (hereinafter simply referred to as a “bridge scaffolding”) having a rectangular scaffolding plate 1 having a predetermined area. The work area may be arbitrarily changed by connecting as many as desired via B). In FIG. 1, three scaffolds A and bridge scaffolding plates B are used to ensure a 5 times larger area than the work area of the scaffolds A.

  Here, the structures of the scaffolding platform A and the bridge scaffolding plate B, which are the basic configuration of the work table, will be specifically described.

  As shown in the figure, the basic structure of a single unit of the scaffold base A is a rectangular scaffolding plate 1 having a short side edge 10 and a long side edge 11 and a short side portion of the scaffold plate 1 that is opposed to the rectangular scaffolding plate 1. The leg portions 2 and 2 are attached to the short side edge portions 10 and 10 so as to be freely foldable and openable, and are attached to both sides of the leg portions 2 and 2 so as to be freely drawn out in the vertical direction. And a handle portion 4 including a pair of left and right handle bars 41, 41.

  That is, the scaffold base A constituting the work bench according to the present embodiment is such that at least one short side edge 10 of the scaffold board 1 serves as an elevator, and an operator (user of the scaffold base) With the legs 2 and 2 open, the legs 2 can be climbed and moved from the ground to the scaffold plate 1 to perform a desired operation. When ascending or descending the leg portion 2, the operator can easily raise or lower it by grasping one or both of the cue bars 41. In addition, since the handle part 4 becomes a support body of the handrail 3 mentioned later, in this embodiment, the handle part 4 is provided in both the short side edge parts 10 and 10 of the scaffold board 1. FIG.

  Moreover, the scaffold board 1 and the bridge scaffold board B of the scaffold base A which concern on this embodiment are comprised so that it can expand-contract in a longitudinal direction, as shown in FIGS. 5A is a side view of the scaffold plate 1, and FIG. 5B is a bottom view of the scaffold plate 1, but the leg portion 2 is omitted.

  First, the scaffold board 1 will be described. As shown in FIGS. 5 to 7, the scaffolding plate 1 includes an outer top plate portion 12 and an inner top plate portion 13 slidably fitted to the outer top plate portion 12, and is formed on the side edge surface of the inner top plate portion 13. A predetermined length can be set by inserting the lock pin 14a of the lock device 14 provided on the side edge surface of the outer top plate 12 into the positioning holes 15, 15, 15, 15 formed at a predetermined pitch. it can. In the figure, reference numeral 14b denotes a lock knob provided with a lock pin 14a projecting, and reference numeral 23 denotes a left and right leg portion 2, 2 which is not shown to be connected to the scaffold plate 1 so as to be openable and foldable. The reference numeral 24 is a central reinforcing plate, the reference numeral 25 is a reinforcing cloth member, and the reference numeral 26 is a connecting member for constructing a scaffold plate. Reference numeral 12a denotes a handle provided on the reinforcing cloth member 25. The outer top plate 12 can be easily slid by holding the handle 12a.

  The connecting bracket 23 for connecting the left and right leg portions 2 and 2 to the scaffold plate 1 so as to be openable and foldable is provided with a fixed plate attached to the side surface of the scaffold plate 1 and a pedestal 21. It has a well-known structure composed of a movable plate fixed to the upper end portion, a pivot for rotatably connecting the two, and a connection pin inserted into a connection hole formed in the fixed plate and the movable plate.

  Thus, since the scaffolding plate 1 is configured to be stretchable in the longitudinal direction, there are as many positioning holes as the number of positioning holes between the longest state (FIG. 6) and the shortest state (FIG. 7). ) It can be set to a predetermined length.

  Further, as shown in FIGS. 6 and 7, the left and right leg portions 2 and 2 are formed in a hem-extended shape so as to be substantially C-shaped by a pair of left and right leg posts 21 and 21, respectively. When the leg is opened, it is configured to stand on a downward slope from the scaffold plate 1 at a predetermined angle.

  Moreover, in this embodiment, it is set as the scaffold base A in which the leg-opening angle of the leg parts 2 and 2 was made different in right and left. That is, as shown in FIG. 6, the right leg 2 is set to a first leg angle with a wide leg angle (for example, 107.5 degrees: the angle from the floor is 72.5 degrees). On the other hand, the left leg 2 is set to a second leg opening angle (for example, 100 degrees: the angle from the floor is 80 degrees), and the left side is more upright.

  With this configuration, for example, when performing a wall painting operation or the like, when working near a corner sandwiched between walls, the leg portion in a more upright state (for example, the left leg portion 2) If it is as close as possible to the wall, the work area can be shifted to the corner of the wall, and work efficiency can be improved. The leg opening angle may be set as appropriate.

  In addition, since it is assumed that one leg portion 2 (here, the left side) is used close to the wall side in this way, as shown in FIG. A plurality of step bars 22 are attached at a predetermined interval between 21 and 21, and are constructed in a ladder shape so that they can be moved up and down (see FIGS. 1 and 2), while the left leg 2 functions as a step. An appropriate reinforcing body or the like is attached between the pedestals 21 and 21 without providing the step rail 22 to be provided. However, as a matter of course, each of the left and right leg portions 2 and 2 may be configured in a ladder shape having a step bar 22.

  Further, the lower end portion of the pedestal 21 has a nested structure, and is configured to be extendable by a predetermined length as shown in the figure. In the figure, reference sign GL indicates a ground plane. Also, what is denoted by reference numeral 40 is a pair of left and right opening stoppers disposed at predetermined intervals between both ends of the scaffold plate 1 and the uppermost step rail 22 of each of the left and right pedestals 21. Yes, it is possible to hold the scaffolding plate 1 in a stable state by the opening metal fittings 40, 40.

  In addition, the scaffold base A allows the cue bar 41 to be slidable along the pedestal 21, and holds the rod holding part 9 at a position where it is slid upward and pulled out and at a position where it is slid downward and stored. It has. That is, a rod holding portion 9 having a well-shaped holding mechanism formed of a lock pin and a lock hole that can be locked at the lifting position and the storage position is formed on the outer sides of the left and right pedestals 21 and 21 respectively. It is installed on the side.

  Further, the scaffold base A is provided with a horizontal bar 5 between a pair of short side clasps 41, 41 constituting the handle part 4, and is opposed to the long side edge 11 of the scaffold plate 1. A handrail 3 is detachably attached between the upper ends of the clue bars 41 and 41 to be attached.

  The handrail 3 is provided as a pair in a state of being opposed to each other along the opposing long side edges 11, 11 of the scaffold plate 1, and an interior member 3 a and an exterior member 3 b that are slidably fitted. It has a double structure consisting of In this embodiment, the handrail 3 is attached between the upper ends of the handhold bars 41 and 41 facing each other with the long side edge portion 11 of the scaffolding plate 1 interposed therebetween. The mounting structure will be described later.

  The scaffold base A having the above-described structure has a pair of left and right cues 41 and 41 attached to both sides of the leg 2 so as to be freely drawn out in the vertical direction, and a stepping-out structure constructed between these left and right cues. A scaffolding horizontal bar 51 is provided as a first horizontal bar for prevention.

  Moreover, as shown in FIG. 5, a bar storage portion 53 for storing the scaffolding base horizontal bar 51 is provided on the back side of the scaffolding plate 1. Accordingly, if the scaffold base horizontal bar 51 is stored in the bar storage portion 53, for example, when the scaffold base A is transported, it is not necessary to transport the scaffold base horizontal bar 51 separately.

  In addition, the bar storage part 53 in this embodiment is formed by the recessed part formed between the center reinforcement board 24 of the inner top board part 13, and the scaffolding board structure connection materials 26 and 26 provided so that this might be pinched | interposed. ing.

  Next, the bridge scaffolding plate B will be described. FIG. 8 is an explanatory view showing a state where the bridge scaffolding plate B is extended, and FIG. 9 is an explanatory view showing a state where the bridge scaffold plate B is contracted. The bridge scaffolding plate B according to the present embodiment basically has the structure in which the leg 2 is removed from the scaffolding plate 1 and the connecting piece 7 protrudes outward on the side edge surface near the four corners. As shown in the figure, like the scaffolding plate 1, it is configured to be stretchable in the longitudinal direction.

  That is, the bridge scaffolding plate B includes an outer plate portion 16 and an inner plate portion 17 that is slidably fitted to the outer plate portion 16, and the positioning holes 18 formed at a predetermined pitch on the side edge surface of the inner plate portion 17. , 18, 18, 18 can be set to a predetermined length by inserting a lock pin 19 a of a lock device 19 provided on the side edge surface of the outer plate 16. In the figure, reference numeral 19b denotes a lock knob provided with a lock pin 19a. Reference numeral 20 denotes a stopper that contacts the end of the inner plate portion 17, and reference numeral 71 denotes a connection pin of the connection piece 7. Reference numeral 27 denotes a central reinforcing plate, reference numeral 28 denotes a reinforcing cloth member, and reference numeral 29 denotes a connecting member for constructing a scaffold plate.

  The bridge scaffolding plate B includes an extension horizontal bar 52 that is a second horizontal bar that can be installed between the cue bars 41 and 41 provided on the scaffolding plate 1 of the scaffolding platform A. In addition, as shown in FIGS. 8 and 9, a bar storage portion 54 for storing the extension horizontal bar 52 is provided on the back side of the bridge scaffolding plate B. Therefore, if the extension horizontal bar 52 is stored in the bar storage portion 54, for example, when the bridge scaffolding platform B is transferred, it is not necessary to transfer the expansion horizontal bar 52 separately.

  Note that the bar storage portion 54 in the present embodiment is formed by a recess formed between the central reinforcing plate 27 of the inner plate portion 17 and the scaffolding plate constituting connecting members 29 and 29 provided so as to sandwich this. Yes.

  Thus, since the scaffold base A and the bridge scaffolding plate B are configured to be stretchable in the longitudinal direction, even if the same number is connected, if the scaffolding plate 1 and the bridge scaffolding plate B are extended, FIG. As shown in FIG. 10, a work table having a very large work area can be configured. On the other hand, if the work table is in a contracted state, as shown in FIG. Can be configured.

  As shown in FIGS. 3 and 10, a number of anti-slip holes are formed on the surface of the scaffolding plate 1 and the bridge scaffolding plate B of the scaffolding platform A by burring. As a matter of course, the scaffolding platform A has a strength sufficient to withstand even a single operator or a plurality of workers riding on it simultaneously, and a bridge interposed between the scaffolding platforms A and A. Since the scaffold plate B has the same strength, as shown in FIGS. 1 to 3, when the work area is expanded by connecting three scaffold platforms A and two bridge scaffold plates B, at least It can withstand the load of 10 or more workers.

  By the way, when constructing a work table with the work area expanded by connecting the above-described scaffold base A via the bridge scaffold plate B, the following procedure is used.

  That is, as shown in FIG. 4, a plurality of scaffolds A are arranged at a predetermined interval in the width direction so that the long sides face each other. Next, the bridge scaffolding plate B is disposed between the scaffolding plates 1 and 1 of the adjacent scaffolding platform A. At this time, by inserting the connecting pin 71 of the connecting piece 7 of the bridge scaffolding plate B into a pin receiving hole (not shown) provided at a predetermined position of the scaffolding plate 1, the scaffolding bases A and A become the bridge scaffolding plate. It will be firmly connected via B.

  Then, the cue bars 41 and 41 of the scaffold base A are pulled out, and a scaffolding base horizontal bar 51 is installed between the pair of left and right cue bars 41 and 41 of the scaffold base A, and is opposed to the adjacent scaffold bases A and A. An extension horizontal bar 52 provided in the bridge scaffolding plate B is installed between the clue bars 41 and 41 to be installed. At this time, when the handrail 3 is set later, the clasp bars 41, 41 facing each other with the long side edge portion 11 of the scaffolding plate 1 sandwiched therebetween so as to be positioned on the long side portion of the scaffold base A. A handrail 3 is set between the upper ends.

  On the other hand, when the handrail 3 is attached in advance between the upper ends of the handhold bars 41, 41 facing each other with the long side edge 11 of the scaffolding plate 1, the handbars 41, 41 are interlocked with the pulling operation. Since the handrail 3 is set, the unnecessary handrail 3 that will partition the work area is removed.

  In this embodiment, the handrail 3 and the cue bar 41 are connected as follows. That is, as shown in FIG. 14, a pin body 62 that protrudes outwardly by a coil spring 61 is disposed inside the upper end of the hand rod 41, and the hand rod 3 has both ends of the hand rod 3. Cap bodies 45, 45 that can be fitted to the upper end are provided. A pin hole 46 is formed in the cap body 45. When the cap body 45 is put on the handle bar 41 and the pin body 62 is inserted through the pin hole 46, the handrail 3 and the handle bar 41 are connected. In this way, the handrail 3 and the cue bar 41 can be connected very easily.

  By the handrail 3 and the pseudo handrail which is continuous so that the scaffolding horizontal bar 51 and the extension horizontal bar 52 are alternately positioned, a work table surrounded by four sides of the work area is completed (FIG. 1). reference.). It should be noted that the timing at which the clue bar 41 is pulled out may be before the scaffold bases A are arranged.

  Here, the scaffolding base horizontal bar 51 and the extension horizontal bar 52 will be described with reference to FIGS. In addition, since the scaffolding base horizontal bar 51 and the extension horizontal bar 52 have the same configuration, in the following description, the horizontal bar 5 is expressed to represent both.

  As shown in the side view of FIG. 11 (a) and the plan view of FIG. 11 (b), the horizontal bar 5 is formed in a substantially rectangular tube shape and is slidable in a loosely fitted state. It is comprised from the inner side bar body 5a and the outer side bar body 5b in which the clasp bar connection piece 55 was provided.

  On the base end side of the inner bar body 5a, there is provided a connecting tool 56 having an outer bar connecting pin 56a and a leaf spring 56b for biasing the outer bar connecting pin 56a (see FIG. 11C). A plurality of connecting holes 57 corresponding to the outer bar connecting pins 56a are formed at the base end of the outer bar body 5b to be fitted.

  As described above, the horizontal bar 5 has a configuration in which the inner bar body 5a and the outer bar body 5b can be relatively slidable, and the outer bar connecting pin 56a is connected to any one of the plurality of connecting holes 57. By selectively inserting, the length can be specified.

  Further, as shown in FIG. 12, the horizontal bar 5 has a connection mechanism 58 disposed in a handle bar connecting piece 55 provided at the tip of each of the inner bar body 5a and the outer bar body 5b. The connection part is comprised.

  As shown in the figure, the clasp bar connecting piece 55 is formed in a substantially channel shape having a substantially U-shape in cross section, and a notch 55a through which the connecting protrusion 63 is inserted is formed from the side wall on one side to the bottom wall. Has been. The clue bar connecting piece 55 is attached to the horizontal bar 5 via a rivet 5c. The connection protrusion 63 is provided in the bar storage portions 53 and 54 provided in the cue bar 41 and the bridge scaffolding plate B. The cue bar 41 is provided near the upper end of the cue bar 41 so that it does not get in the way when the cap body 45 of the handrail 3 is put on the cue bar 41.

  The connecting mechanism 58 provided inside the clasp bar connecting piece 55 is pivotally supported at the base end via a pivot 59a projecting on the bottom wall of the clasp bar connecting piece 55, and has the notch 55a on the tip side. A hook portion 59b is formed so as to face the hook portion, and an engagement piece 59 in which a knob portion 59c protrudes between the hook portion 59b and the base end, and is wound around the pivot 59a, and one end is a clasp bar A torsion spring 60 that abuts against the side wall of the connecting piece 55 and the other end abuts against the back surface of the knob 59c of the engaging piece 59 and biases the engaging piece 59 in the engaging direction. .

  With this configuration, as shown in FIG. 13, when the horizontal bar 5 passes through the connection protrusion 63 from the notch 55 a of the hand bar connecting piece 55 to the hand bar 41, the hook bar 59 b of the engaging piece 59 is formed. The connecting projection 63 abuts on the outer surface of the arc and rotates the engagement piece 59 counterclockwise against the torsion spring 60. When the contact state passes, the engagement protrusion 59 is engaged clockwise by the urging force of the torsion spring 60. The mating piece 59 rotates and the hook portion 59 b engages with the connecting projection 63. In order to remove the horizontal bar 5 from the handle bar 41, it is only necessary to put a finger on the knob 59c and rotate it counterclockwise to release the engagement state and remove the connecting projection 63 from the notch 55a.

  As shown in FIGS. 5, 8, and 9, the bar protrusions 53, 54 formed on the back surface side of the scaffold plate 1 of the scaffold base A and the back surface side of the bridge scaffold plate B have the above-described connecting protrusion 63. Is provided at a predetermined position, and the horizontal bar 5 is firmly connected and held to the connection protrusion 63 via the connection mechanism 58, so that it does not fall off the scaffold plate 1 or the bridge scaffold plate B.

  As described above, if the scaffold base A and the bridge scaffold board B according to the present embodiment are used, it is possible to easily construct a work table having a work area of a necessary size according to the work site. Since the four sides of the work area can be surrounded by the handrail, it is possible to prevent a fall accident caused by stepping off the work table.

  Incidentally, in the example described above, the bar holding portion 9 held by the clue bar 41 is fixed to the pedestal 21, but as another embodiment, as shown in FIG. It is also possible to adopt a configuration in which a movable bar holding portion 8 that can adjust the angle is provided.

  For example, the posture of the clue bar 41 held by the rod holding unit 8 is an inclined posture (see an imaginary line in FIG. 15) that protrudes obliquely with respect to the scaffolding plate 1 along the pedestal 21 of the leg 2. Thus, it is possible to selectively switch to an upright posture (see a solid line in FIG. 15) that protrudes in a substantially vertical direction with respect to the scaffold plate 1.

  As for the mounting posture, here, either the inclined posture or the upright posture is selected, but a plurality of postures can be selected, and from a standing posture to an arbitrary inclined posture. It is also possible to adjust the posture steplessly.

  Here, with reference to FIG.15 and FIG.16, the movable bar | burr holding | maintenance part 8 which can adjust the angle of the attachment attitude | position of the cue stick | rod 41 is demonstrated. As shown in FIG. 16, the rod holding portion 8 of the scaffold base A is substantially attached to the leg pillars 21 on both sides of the leg portion 2 attached to the scaffold plate 1 so that the cue rod 41 can slide freely. It is composed of a scaffolding cue bar holding metal fitting (hereinafter also referred to as “holding metal fitting”) 80 that can be held and fixed at a predetermined position.

  The holding metal fitting 80 is attached to the outer surface of the pair of left and right leg posts 21, 21 of the leg portion 2, and is attached to the upper surface of the base metal piece 81 so as to be rotatable around a pivot 82. A rod bracket 83 is provided.

  The rod bracket 83 includes a sheath portion 85 provided with a fixture 84 that can slidably hold the cue rod 41 and can be fixed at a predetermined position (at least one protruding position and a storage position). A positioning portion 91 is provided below the sheath portion 85 and fixes the rod bracket 83 at a predetermined rotation position, and a rotation guide portion 92 that guides the rotation operation of the rod bracket 83.

  As shown in FIG. 16, the fixture 84 includes an engaging pin 84b protruding from the knob 84a and a spring 84c that urges the engaging pin 84b toward the hand rod 41. The position of the clasp bar 41 can be fixed by engaging the engaging pin 84b with a locking hole (not shown) formed in the vicinity of the upper end and the lower end of the 41.

  The positioning portion 91 is configured by a first positioning hole 91a for positioning the clue bar 41 in the inclined posture and a second positioning hole 91b for positioning in the standing posture. The first positioning hole 91 a and the second positioning hole 91 b are arranged on a virtual arc centered on the pivot 82. Further, the rotation guide portion 92 is formed by an arc-shaped elongated hole, which is also substantially formed on a virtual arc centered on the pivot 82.

  When the rod support fitting 83 is rotated around the pivot 82 by inserting the bolt 93 from the inside of the rotation guide portion 92 and inserting it into the bolt hole formed in the base fitting 81 and screwing it with a nut or the like. The rod bracket 83 rotates smoothly without floating from the base bracket 81.

  The base fitting 81 is formed with bent portions 81a, 81b, 81c on the upper and lower sides on one side and the substantially upper half on the other side so that the pedestal 21 can be held, and a lower portion on one side of the bent portion 81c. A locking device mounting portion 81d is formed by projecting the substantially lower half of the other side facing the bent portion 81b formed outward.

  In the vicinity of the center of the upper end of the base metal 81, a base-side pivot hole for inserting a shaft serving as the pivot 82 is formed. The pivot 82 is inserted into the pivot hole, and the rod bracket 83 is centered on the pivot 82. As shown in FIG.

  In addition, a locking device 87 provided with a lock pin that is selectively inserted into either the first positioning hole 91a or the second positioning hole 91b of the positioning portion 91 is provided in the locking device mounting portion 81d of the base metal member 81. Installed.

  The rod bracket 83 has a narrow portion extending upward from a wide portion formed in the lower portion, and a sheath portion 85 is provided in the narrow portion so that a part of the lower end side overlaps the wide portion.

  The sheath portion 85 is formed in a rectangular cylindrical shape, and allows the cue rod 41 to be slidably inserted.

  On the other hand, in the wide portion of the rod bracket 83, a rotation guide portion 92 composed of the arc-shaped elongated hole in the vicinity of the lower end thereof, and a first positioning hole with a predetermined interval above the rotation guide portion 92. 91a and a second positioning hole 91b are formed.

  From the embodiment described above, the following work table and work platform bridge scaffolding plate are realized.

  In other words, the scaffold base A in which the leg portions 2 are attached to the opposing short sides of the rectangular scaffolding plate 1 and the scaffold base A are adjacent to each other when a plurality of such long sides are arranged in parallel. A working platform bridge scaffolding plate B interposed between the scaffolding plates 1, 1, and the scaffolding platform A is attached to both sides of the leg portion 2 so as to be pulled out vertically. A pair of cue rods 41, 41 and a scaffolding stand horizontal bar (first horizontal bar) 51, which is constructed between the left and right set of cue rods 41, 41, and is provided for the above-mentioned work. The platform bridge scaffolding plate B is a work table provided with a bridge horizontal bar (second horizontal bar) 52 that can be installed between one of the cue bars 41, 41 of the platform A located on the left and right. .

  In the above-described configuration, the work table in which the bar storage portions 53 and 54 for storing the horizontal bars 51 and 52 are provided on the back surface of the scaffold plate 1 and the bridge scaffold plate B of the scaffold base A, respectively.

  The said structure WHEREIN: The scaffolding board 1 of the said scaffold base A and the said bridge scaffolding board B are work benches each comprised so that expansion-contraction is possible in a longitudinal direction.

  In the above configuration, the handrail 3 is detachably attached between the handhold bars 41 and 41 facing each other across the long side portion of the scaffold plate 1 in the scaffold base A, and the handrail 3 and the scaffold base horizontal bar 51 are attached. And a workbench that allows the work area to be enclosed by an additional horizontal bar 52 (horizontal bar).

  A workbench configured as described above, wherein the handrail 3 is constituted by an interior member 3a and an exterior member 3b that are slidably fitted, and can be expanded and contracted in accordance with a pulling operation of the cue bar 41.

  In the scaffold base A having the above-described configuration, a work table provided with a bar holding portion 8 that can hold the clasp bar 41 so that the attachment posture can be freely adjusted on both sides of at least one leg 2 of the scaffold base A.

  In a work table in which a plurality of scaffolding platforms A each having a rectangular scaffolding plate 1 to which legs 2 are attached are arranged side by side so that the long sides of the scaffolding plates 1 face each other, the scaffolding platform A includes the legs A pair of left and right handhold bars 41, 41 that are attached to both sides of the part 2 so as to be able to be pulled out in the vertical direction, and a side for a scaffolding base for preventing a stepping off that is constructed between the left hand pair of handhold bars 41, 41. A work platform bridge scaffolding plate B that is provided between the adjacent scaffolding platforms A and A, and is adjacent to each of the scaffolding platforms A and A located on the left and right. For the work bridge, which is provided with an extension horizontal bar 52 that can be installed between the side cue bars 41, 41, and has a bar storage portion 54 for storing the extension horizontal bar 52 on the back side. Scaffolding board B.

  In the above configuration, the work platform bridge scaffolding plate B configured to be extendable in the longitudinal direction.

  As mentioned above, although embodiment of this invention was described in detail based on drawing, these are illustration to the last, Comprising: Based on the knowledge of those skilled in the art, this invention is implemented with the other form which gave various deformation | transformation and improvement. It is possible. In this embodiment, the main material is aluminum or an aluminum alloy, but the material may be changed as appropriate.

A Scaffolding stand B Bridge scaffolding plate for work platform 1 Scaffolding plate 2 Leg 3 Handrail 3a Interior member 3b Exterior member 4 Hanger 5 Horizontal bar 8, 9 Bar holder 21 Leg column 41 Cue bar 53, 54 Bar storage

Claims (7)

A scaffolding base with legs attached to the opposing short sides of the rectangular scaffolding plate,
A bridge scaffolding plate interposed between the adjacent scaffolding plates when a plurality of the scaffolding bases are arranged side by side so that the long sides face each other, and
The scaffold is
A pair of left and right handhold bars attached to both sides of the leg portion so as to be able to be pulled out in the vertical direction, and a first horizontal bar for preventing stepping off between the pair of left and right handhold bars, Prepared,
The bridge scaffolding plate is
A second horizontal bar that can be laid between one cue bar of each of the scaffolds located on the left and right ;
A work bench characterized in that a bar storage unit for storing the horizontal bar is provided on each of the back surface of the scaffolding plate of the scaffolding platform and the bridge scaffolding plate . The scaffolding platform according to claim 1 , wherein the scaffolding plate and the bridge scaffolding plate of the scaffolding platform are each configured to be extendable and contractible in the longitudinal direction. A handrail is detachably attached between the handhold bars facing each other across the long side portion of the scaffold plate in the scaffold base, and the work area can be surrounded by the handrail and the horizontal bar. The scaffolding base according to claim 1 or 2 . The workbench according to claim 3, wherein the handrail is constituted by an interior member and an exterior member that are slidably fitted, and can be expanded and contracted in accordance with a pulling operation of the clasp bar. The rod holding part which made it possible to hold | maintain the said clasp bar | burr so that attachment posture adjustment is possible was provided in the both sides of the at least one leg part of the said scaffold base, The any one of Claims 1-4 characterized by the above-mentioned. Scaffolding platform. In a work table in which a plurality of scaffolding platforms including rectangular scaffolding plates to which legs are attached are arranged side by side so that the long sides of the scaffolding plates are opposed to each other, the scaffolding platform is provided on both sides of the legs. Each set includes a pair of left and right cues that can be pulled out in the vertical direction, and a horizontal bar for preventing stepping off between the pair of left and right cues. It is a bridge scaffolding plate for worktable that can be installed,
It is equipped with an additional horizontal bar that can be installed between the cue bars on the adjacent sides of the scaffolding platform located on the left and right sides, and the rear side has a bar storage part that stores the additional horizontal bar Bridge scaffolding board for worktables characterized by The work platform bridge scaffolding plate according to claim 6 , wherein the work platform bridge scaffolding plate is configured to be stretchable in a longitudinal direction.

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