JP2013189824A - Folding scaffold and vent with folding scaffold including folding scaffold - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a folding scaffold which does not require a storage space, is easy to convey, and can be easily and safely assembled and disassembled, and a vent with the folding scaffold, which includes the folding scaffold.SOLUTION: A back surface panel is erected on a back surface of a bottom surface panel, a front surface panel is erected on the front surface, and side face panels are erected on both side faces to attain a box shape whose upper surface is open. The bottom surface panel, the back surface panel, both the side face panels and the front surface panel can be folded by piling up the back surface panel, the bottom surface panel, both the side face panels and the front surface panel in this order. When the front surface panel is pulled up from a folded state, both the side face panels are unfolded at both side front parts of the back surface panel, the front surface panel is unfolded on the front surface of both the side face panels, and the bottom surface panel is unfolded sideways at the front of the back surface panel.

Description

  The present invention relates to a folding scaffold that can be folded when stored or not in use, and can be expanded in a box shape when used, and a bent scaffold with the folding scaffold attached thereto, such as a construction site such as a bridge or a highway, a building It is suitable for use at various sites such as construction sites.

  Scaffolds are used for work at high places in the various sites described above. There are various types of scaffolds. For example, scaffolds made by assembling pipes and flooring vertically and horizontally at the work site (assembled scaffolds), which were previously manufactured in a box shape at the factory, transported to the site and installed Scaffolds (completed scaffolds) that are mounted on vehicles, and scaffolds (vehicle-mounted scaffolds) that are mounted on vehicles and transported to the site by the movement of the vehicles.

Although the assembly type scaffolding has an advantage that it can be assembled according to the space of the construction site and the surrounding environment, there is a problem that the assembly work at the site is troublesome and takes time.
Completed scaffolds have the advantage that they do not require on-site assembly work and are easy to install, but they are bulky and require a large storage space. In addition, it is difficult to load a lot of trucks and trailers that are transported to the site at a time, and there is a problem in transportation efficiency.
An on-vehicle scaffold does not require assembly work, but has a drawback that it cannot be used in a narrow field where a car cannot enter.

  There are various methods for constructing bridges. As one of them, there is a vent method that uses a support structure assembled by stacking vents when a bridge girder is installed between piers. The vent method is a method of assembling a gantry (support work) that supports steel beams by stacking and connecting steel vents upward, and erection of a bridge beam carried by a truck or trailer on the support work.

  The stacked upper and lower vents need to be connected (assembled) to each other, and the stacked vents need to be disassembled after the construction is completed. Scaffolding is necessary for these assembly work and dismantling work. Since the support work becomes higher as the vents are stacked, the assembly work and the dismantling work become higher work as the height becomes higher.

  In recent years, there has been proposed a vent facility in which a stair member and a landing platform are provided outside the support (Patent Document 1).

JP 2005-248628 A

  According to the vent facility described in Patent Document 1, improvement in workability and safety can be expected, but transportation to the site and installation work at the site are troublesome because the staircase members and the landing platform are bulky.

  The problem to be solved by the present invention is that it can be folded compactly during storage or when not in use, does not require a large space for storage, can be easily transported to the site, and can be easily expanded at the site during use for easy assembly work. An object of the present invention is to provide a folding scaffold capable of easily and safely performing connection and disassembly work of stacked vents, and a bent scaffold with the folding scaffold.

  The folding scaffold of the present invention is a box shape with an opening on the top surface in which a back panel is placed on the back of the bottom panel, a front panel is placed on the front, and side panels are erected on both sides. The bottom panel, the back panel, both side panels, and the front panel can be attached to the structure (hereinafter referred to as “support”). Both side panels can be folded and stacked on the front panel in that order, and when the front panel is pulled up from the folded state, both side panels folded under the front panel are unfolded forward on both sides of the back panel, The front panel is unfolded on the front of both side panels, and the bottom panel overlaid on the back panel is connected so that it can be unfolded sideways in front of the back panel. The side panel and the front panel are connected with a support so that the panel, the front panel, and the side panel are held in a square frame shape, and the back panel, the front panel, and the inside of the side panel panel held in the rectangular frame shape are connected. In addition, by tilting the bottom panel, the back panel, front panel, both side panels, and bottom panel can be assembled into a box shape with the top opening, and in the assembled state, the bottom panel is erected and stacked on the back panel. Both side panels are overlaid on the bottom panel, and the front panel is overlaid on both side panels so that the folded state can be restored.

  The bottom panel is attached to the lower part of the back panel so as to be rotatable from a folded state overlying the back panel to a state lying on the front of the back panel, and the side panel is folded from the folded state overlaid on the bottom panel. It is attached to the side part of the back panel so that it can rotate to the unfolded state that protrudes to the front of the back panel, and the front panel is in front of both side panels that protrude to the front of the back panel from the folded state over the side panel. It can be attached to the side panel so that it can be rotated to the deployed state.

  The folding scaffolding support is an elongated material, and the support is provided at two upper corners and two lower corners composed of a side panel and a front panel. It spans the upper frame and the upper frame of the front panel. One end of the frame is attached to the upper frame of the side panel and the other end is rotatably attached to the upper frame of the front panel. As the front panel is folded, it is installed across the lower frame of the front panel and the lower frame of the front panel, one end of which is rotatably attached to the lower frame of the side panel, and the other end is rotatably attached to the lower frame of the front panel. Folded and raised with the front panel unfolded, unfolded until both side panels protrude forward of the back panel, and the side panel side end is abutted with the front panel side end. Frame material and front panel Said frame member has both side panels and the front panel is supported by a support is are to be held in the expanded state. In this case, an unequal triangle is formed by the frame material of the side panels connected as described above, the frame material of the front panel, and the support, and the unequal triangle is secured so that the side panels and the front panel The unfolded state is maintained, and at the time of folding, the support can be rotated and folded along the frame material of the side panel.

  A worker can also move up and down by providing a wrap on any one or more of the back panel, the side panels, and the front panel. In this case, a trap is provided on the entrance / exit side of the bottom panel, and the worker who has climbed the trap can enter the box-shaped scaffold from the entrance, and the worker in the scaffold can descend from the entrance to the trap. Easy access to the scaffolding.

  The bottom panel can be provided with an entrance, and an openable / closable lid can be provided at the entrance to allow an operator to enter and exit the box-shaped scaffold. The lid may be of an open / close type (door type) that opens when pushed upward from the bottom and closes when lowered, or a sliding type (sliding door type) that can be opened and closed laterally.

  The bent scaffold with a folding scaffold according to the present invention is such that the folding scaffold is attached to the equipment surface of the vent and can be folded and unfolded in the attached state. In this case, if the rear panel with the folding scaffolding lap is attached to the vent side, the folding scaffolding is stabilized when the operator goes up and down the wrapping.

The folding scaffold of the present invention has the following effects.
(1) Since it can be folded, it does not take a large space for storage and is not bulky. Therefore, it is possible to increase the number of loading on a transport vehicle such as a truck or a tractor, and it is possible to efficiently transport a large number of folding scaffolds.
(2) Expand the front panel that is stacked on the top in the folded state (pull up) and raise the bottom panel so that it can be deployed in a box shape, which makes it easy to deploy, and wastes time and physical strength for scaffold assembly work It will be resolved.
(3) There is an entrance / exit on the bottom panel, and the entrance / exit can be opened and closed with a lid, so that an operator can easily enter and exit the unfolded box-shaped scaffold.

The vent with a folding scaffold of the present invention has the following effects.
(1) Since the scaffolding is attached to the vent, the support with the scaffolding is automatically assembled if the vents are stacked, and the workability is better than when the scaffolding is constructed with a single pipe or flooring.
(2) Since the folding scaffold is attached to the vent, the scaffold is also transported along with the transport of the vent, and the loading and unloading work to a truck or a trailer becomes easy.
(3) Since the bent scaffolds can be stacked after the folding scaffolds are unfolded in a box shape on the ground, the scaffold assembly work at a high place is unnecessary and safe.

The disassembled perspective view which shows an example of the folding scaffold of this invention, and a vent with a folding scaffold. The side view which shows the usage example of the folding scaffold of this invention, and the bent with a folding scaffold. The front view which shows the usage example of the folding scaffold of this invention, and the bent with a folding scaffold. (A) is explanatory drawing which shows the state which folded the folding scaffold, (b) is explanatory drawing which shows the state which expand | folded the folding scaffold. It is explanatory drawing of the expansion | deployment method of a folding scaffold, (a) shows the state which pulled up the front panel of the folding scaffold, (b) shows the state which hold | maintains a side panel with a holder, (c ) Shows the state of raising the bottom panel and setting it on the bottom of the square frame. The disassembled perspective view which shows an example of a folding scaffold. Explanatory drawing of the connection structure of a bottom panel and a back panel. Explanatory drawing of the connection structure of a back panel and a both-sides panel. It is explanatory drawing of the connection structure of a both-sides panel and a front panel, Comprising: (a) is the front perspective view, (b) The back perspective view. FIG. 6 is an enlarged view of a part of FIG. 5, (a) is a side view before screwing the holding bolt, and (b) is a state where the holding bolt is screwed and protruded above the bottom panel to prevent the bottom panel from falling down. FIG. It is explanatory drawing of the support material used for the connection of a front panel and a side panel, Comprising: (a) is explanatory drawing which shows the support material at the time of expansion | deployment, (b) is explanatory drawing of the support material of a folded state.

(Folding scaffold embodiment)
An embodiment of a folding scaffold according to the present invention will be described with reference to the drawings. The folding scaffold of the present invention can be used at various sites such as construction sites such as bridges and highways, and building construction sites. Although the folding scaffold of the present invention can be attached to the vent, it can be separated from the vent and attached to the vent at the time of use. In the following description, the folding scaffold 1 that can be folded as shown in FIG. 4 (a) is attached to the vent 2 and can be deployed in a box shape as shown in FIGS. 1 and 4 (b) while attached to the vent 2. A vent 100 with a folding scaffold will be described as an example.

  The folding scaffold 1 of the present invention can be folded as shown in FIG. 4 (a) when stored or not in use, and expanded (expanded) as shown in FIGS. 1 and 4 (b) when used. It can be made into a box shape with an opening on the top surface. As shown in Fig. 2 and Fig. 3, an operator puts (enters) the scaffold and connects the vents 2 stacked up and down, dismantling, and other needs. It is possible to perform various operations. FIG. 2 is a front view showing a state in which the vents with scaffolds of FIG. 1 are vertically stacked, and FIG. 3 is a side view of FIG.

[How to unfold the folding scaffolding]
To unfold the folded scaffold 1 folded as shown in FIG. 4A into the box shape shown in FIG. 1, for example, the procedure shown in FIGS. 5A to 5C can be performed.
(1) As shown to Fig.4 (a), the vent 100 with a folding scaffold is put on the ground with the vent 2 facing down.
(2) As shown to Fig.5 (a), two workers pull up the longitudinal direction (width direction) both sides of the uppermost front panel 6 folded by hand. At this time, the side panels 5 connected to the front panel 6 by the support 7 are pulled up (opened) to the state indicated by the solid line in FIG. 5B, and the upper end of the side panel 5 is further moved to the position shown in FIG. The rear panel 4 on the vent 2 side, the front panel 6 facing it, and the side panels 5 between the rear panel 4 and the front panel 6 are formed into a rectangular frame.
(3) After unfolding into a box shape as shown in FIG. 5 (b), the bottom panel 3 overlaid (falling down) on the back panel 4 is raised (standing up) as shown in FIG. 5 (c). 1) and FIG. 4 (b), a box-shaped scaffold surrounded by the back panel 4, the side panels 5, the front panel 6, and the bottom panel 3 and having an open top surface is formed.

[How to fold folding scaffolds]
To fold the folding scaffold 1 developed in a box shape as shown in FIG. 1 and FIG. 4 (b) as shown in FIG. 4 (a), for example, as follows.
(1) The folding scaffold 1 in the unfolded state shown in FIGS. 1 and 4B is laid sideways as shown in FIG.
(2) Contrary to FIG. 5C, the bottom panel 3 is laid sideways on the back panel 4 side.
(3) In the state of (2), the both side panels 5 are pushed downward and the lower end side of the support tool 7 is slid inward to release the support of the front panel 6 by the support tool 7.
(4) The front panel 6 is pushed down in the state of (3) above, and the both side panels 5 are lowered to the bottom panel 3 side superimposed on the back panel 4 as shown in FIG. As shown to 4 (a), the both-sides panel 5 is piled up on the bottom panel 3, and the front panel 6 is piled up on it. At this time, the front panel 6 is overlaid on the back panel 4 with little or no gap to complete the folding.

[Components of folding scaffold]
As shown in FIG. 6, the folding scaffold 1 of the present invention that can be unfolded and folded as described above includes a bottom panel 3, a back panel 4 that is vertically attached to the back of the bottom panel 3, and a bottom panel 3. A front panel 6 attached vertically to the front and a side panel 5 attached vertically to both sides of the bottom panel 3 are provided. As shown in FIG. 4A, these panels are connected so that the back panel 4, the bottom panel 3, the side panels 5, and the front panel 6 are stacked and folded in this order.

[Bottom panel]
The bottom panel 3 is a part that becomes a working scaffold when unfolded. As shown in FIGS. 6 and 7, fixed floors 31 are provided on both sides in the width direction, and an entrance 31a is provided between the fixed floors 31, and an entrance 31a. An openable / closable floor 32 is provided. The fixed floor 31 has a floor material 34 stretched inside a fixed floor frame 33. Stop holes 33 a into which connecting tools (bolts) 19 used for connection to the back panel 4 can be inserted are provided at both ends in the longitudinal direction of the fixed floor frame 33 and near the back panel 4. Expanded metal is used as the flooring 34. The entrance / exit 31a is wide enough for an operator to enter and exit.

  As shown in FIGS. 6 and 7, the open / close floor 32 has a floor material 38 stretched inside a square open / close floor frame 37. Expanded metal is used as the flooring 34. As shown in FIG. 6, this open / close floor 32 is pivotally supported by a connecting pin 39 on the front side of both side portions 37a and 37b of the open / close floor frame 37 and rotates in the direction of arrows AB in FIG. It is as. A flat plate-like stopper 40 is provided on the front side of the opening / closing floor frame 37 so as to protrude outward. When the stopper 40 is rotated in the direction of arrow A in FIG. 6 to close the doorway 31a, the stopper 40 is locked to the peripheral frame 31a of the fixed floor frame 33 and stops at that position.

[Rear panel]
As shown in FIG. 6, the rear panel 4 is provided with a lap 8 between the rear frames 4a on both sides in the width direction. The back frame 4 a is provided with a reinforcing cross member 10 in the center in the vertical direction, and a baseboard 23 is stretched under the cross member 10. Expanded metal is used as the skirting board 23.

  The trap 8 includes a ladder portion 11 and an attachment portion 12 protruding rearward from the upper end thereof. The ladder portion 11 includes a step bar 11a. The number and interval of the step bars 11a can be set so as to be easy to use. The lower end of the trap 8 extends below the lower end of the back panel 4. As long as the position of the trap 8 is within the back frame 4a, it may be a different position, for example, a position closer to the left or right.

  The left and right vertical members 9 of the back frame 4a are elongated L-shaped members, and are arranged so as to be L-shaped outward in plan view. A through hole 9a is provided on the lower end side of the inner side surface of the vertical member 9, and the connector 19 used for connection to the fixed floor frame 33 can be inserted from the outside of the vertical member 9 as shown in FIG. . An upper connecting plate 14 is provided on the outer side of the upper end portion of the vertical member 9, and a lower connecting plate 15 is provided on the outer side of the lower end portion so as to protrude forward (forward). Both connecting plates 14 and 15 are provided with insertion holes 14a and 15a penetrating vertically. An L-shaped upper connecting plate 21 is attached to the inside of the upper end of the left and right vertical members 9 of the back frame 4a, and the inner side of the vertical portion 9 (between the two upper and lower horizontal members 10a and 10b). An L-shaped lower connecting plate 22 is attached to the front. The upper connecting plate 21 and the lower connecting plate 22 are for attachment to the vent 2 as shown in FIG. 1, and the inner pieces 21a and 22a have retaining holes 21b for inserting bolts for connecting to the vent 2, 22b is opened. Flat connecting plates 24 are attached to the outer sides of the lower portion of the trap 8 toward the front side. The connecting plate 24 has an insertion hole 25 penetrating in the lateral direction (thickness direction). The insertion hole 25 is a stop hole for inserting a bolt for attaching the bottom panel 3.

[Side panel]
As shown in FIGS. 6 and 8, the side panel 5 is reinforced by arranging two cross members 44 and a diagonal member 45 inside a vertical rectangular side frame 5a, and a base board 46 is stretched at the bottom. ing. Expanded metal is stretched on the skirting board 46. The skirting board 46 has an end 46a on the back panel 4 side projecting from the back panel 4 so that the gap between the back panel 4 and the side panels 5 can be filled.

  The rear end portion of the upper member 42 of the side frame 5a protrudes rearward from the rear longitudinal member 41a of the side frame 5a, and an insertion hole 47 penetrating in the vertical direction is formed in the protruding portion 42a. This insertion hole 47 is a stop hole for inserting a stop pin (bolt) 17 when attached to the back panel 4 as shown in FIG. A thin plate-like connecting plate 48 is provided at the lower end of the rear longitudinal member 41a of the side frame 5a so as to protrude rearward. The connecting plate 48 is also provided with an insertion hole 49 penetrating in the vertical direction (thickness direction). This insertion hole 49 is also a stop hole for inserting the bolt 17 when attached to the back panel 4 as shown in FIG. Two flat plates 28 are provided on the front vertical member 41b of the side frame 5a with a space therebetween in the vertical direction. The two flat plates 28 are provided so as to protrude outward.

[Front panel]
As shown in FIGS. 6 and 9 (a) and 9 (b), the front panel 6 has a reinforcing vertical member 54 and a horizontal member 55 arranged in a cross shape inside a horizontal rectangular front frame 6a. Expanded metal is stretched as a skirting board 56 at the inner lower portion. As shown in FIGS. 7 and 9 (a), handles 58 for lifting the front panel 6 are provided at both ends in the width direction of the cross member 55 provided at the center in the vertical direction of the frame 6a. Although the handle 58 is L-shaped, it may have other shapes. Two flat plates 59 are provided at intervals on both end surfaces in the width direction of the front frame 6a. The plate 59 engages (contacts) with the flat plate material 28 of the side panel 5 in the unfolded state so that the load applied to the front panel 6 can be transmitted to the side panel 5. As shown in FIG. 9, a flat plate-like support 57 is provided at the center in the laterally long direction of the lower member 53 so as to protrude inside the lower member 53. As shown in FIG. 9B, the support 57 can support the bottom panel 3 arranged at the lower part inside the side panel 5 and the front panel 6 from below as shown in FIG. 10B.

  Expanded metal is stretched on the bottom panel 3, the back panel 4, the side panel 5, and the front panel 6 described above, but materials other than expanded metal, such as plate materials and other mesh materials, can also be used. It is suitable that the frame, the wrap, etc. are made of steel from the viewpoint of strength.

[Assembling the folding scaffolding]
The folding scaffold 1 of the present invention is configured in an unfolded state as shown in FIG. 1 by assembling (connecting) the bottom panel 3, the back panel 4, the front panel 6, and the side panel 5.

[Connection of bottom panel and back panel]
As shown in FIG. 7, the bottom panel 3 and the back panel 4 are connected by arranging the back panel 4 vertically on the back of the horizontally oriented bottom panel 3 and two connecting plates 24 provided at the bottom of the back panel 4. Are arranged inside the two fixed floors 31 of the bottom panel 3 and are connected by screwing bolts or other stoppers 26 from the both connecting plates 24 toward the peripheral frame 31b of the fixed floor 31. The bottom panel 3 is disposed between the vertical members 9 so that the two stop holes 33a of the fixed floor frame 33 communicate with the through holes 9a provided in the vertical members 9 of the back panel 4. They are connected from the outside by a connecting tool 19 inserted into the through hole 9a and the stop hole 33a. The bottom panel 3 is configured to rotate in the folding direction (X arrow direction in FIG. 7) and the unfolding direction (Y arrow direction in FIG. 7) with the stopper 26 and the connection tool 19 as rotation axes.

[Connection of rear panel and both side panels]
As shown in FIG. 8, the rear panel 4 and the two side panels 5 press the rear vertical member 41 a of the side frame 5 a of each side panel 5 against the outside of the L-shaped vertical member 9 of the rear panel 4. In this case, the protruding portion 42a of the upper member 42 of the side frame 5a is disposed below the upper connecting plate 14 provided on the vertical member 9 of the rear panel 4, and is connected by the bolt 17 and the nut 18 to the lower end of the side frame 5a. The provided connection plate 48 is arranged on both connection plates 15 provided at the lower ends of the vertical members 9 of the back panel 4 and connected by bolts 17 and nuts 18, and the side panel 5 is folded using the bolts 17 as a rotation axis. It rotates in the direction (S arrow direction in FIG. 8) and the unfolding direction (T arrow direction in FIG. 8).

[Connection between both side panels and front panel]
As shown in FIGS. 9 (a) and 9 (b), the two side panels 5 and the front panel 6 are vertically arranged on the front surface of each side panel 5, and the upper members of the side panels 5 are arranged in the vertical direction. 42 and the upper member 52 of the front panel 6 are connected to each other by obliquely linking and attaching a thin thin plate-like support 7 to the lower member 43 of the side panel 5 and the lower member 53 of the front panel 6. A support tool 7 having the same shape as the support tool 7 is obliquely installed and connected under the corner portion. In this case, the support 7 is pivotally supported by a connecting shaft 72 such as a bolt inserted into the stop holes 16 opened at both ends in the axial direction, and is rotatable about the connecting shaft 72 as shown in FIG. (A) It can be folded and unfolded as shown in (b). The flat plate 28 provided on the side panel 5 and the plate 59 provided on the front panel 6 are engaged with each other in the unfolded state as shown in FIGS. It is transmitted to panel 5.

  The support 7, the side frame 5 a of the two side panels 5 connected thereto, and the front frame 6 a of the front panel 6 lift the front panel 6 as shown in FIGS. As shown in FIG. 11A, when the side panel 5 is erected at a right angle or a substantially right angle with respect to the back panel 4, it is designed such that an unequal triangle is formed as shown in FIG. At this time, of the force F acting from the front panel 6 side to the side panel 5 side of the support 7, the component force f1 acts on the side panel 5 and the side panel 5 is supported in an upright state.

  5B, when the front panel 6 is pushed down in the order of FIG. 5B and FIG. 5A, the support 7 falls down and the shape of the inequilateral triangle collapses. As shown in FIG. 2, the side panel 5 is folded over the back panel 4 and the side panel 5 is folded over the front panel 6. In this case, the length of the support 7 and the mounting position of the support 7 on the side panel 5 and the front panel 6 are designed so that the both side panels 5 and the front panel 6 overlap with each other with little or no gap.

(Embodiment of a vent with a folding scaffold)
An example of an embodiment of a bent scaffold 100 according to the present invention will be described with reference to FIGS. This bent scaffold-equipped vent 100 is obtained by attaching the above-described folded scaffold 1 to the vent 2 shown in FIG. As shown in Fig. 2 (front view) and Fig. 3 (side view), the vent 2 is stacked in a desired number of stages, and the overlapped portion is tightened with bolts and nuts, thereby assembling the support used for the temporary support of the bridge girder. It is something that can be done.

[Bento]
The vent 2 shown in FIG. 1 is assembled by connecting two cross members 102 between two vertical columns 101 to form a rectangular frame, and a diagonal member (brace member) 103 is arranged in the rectangular frame. An upper surface material brace 108a is fixed to the upper part of the vertical column 101, and a lower surface material brace 108b is fixed to the lower part of the vertical column 101. In the vertical column 101, a flat upper base plate 105a is provided at the upper end of the support column 104, a lower base plate 105b is provided at the lower end, and a plurality of traps 106 are provided in each support column 104. The base plate 105 is provided with a plurality of through holes 107, and is configured to be fixed to the support pedestal B and other vents 2 (vent 100 with folding scaffolding) by inserting bolts into the through holes 107 and tightening the nuts. Yes. The dimensions and structure of the vent may be other than those illustrated.

[Folding scaffold attached to the vent]
The folding scaffold 1 attached to the vent 2 is the folding scaffold shown in the above-described embodiment. When the folding scaffold 1 is unfolded, the folding scaffold 1 protrudes outside the vent 2 as shown in FIGS. 1 to 3 and FIG. 4B, and when folded, FIG. As shown in FIG.

[Attaching the folding scaffold to the vent]
In the folding scaffold 1, an upper connecting plate 21 (FIG. 6) provided on the back panel 4 is addressed to the upper surface material brace 108 a of the vent 2 of FIG. 1 and is fixed to the vent 2 with bolts and nuts. Further, the lower connecting plate 22 provided on the rear panel 4 is directed to the front surface of the trap 106 of the vent 2, and both ends of U bolts (not shown) covered on the trap 106 are set to the stop holes 21 b of the lower connecting plate 22. Both ends that are inserted into 22b and protrude to the outside (front side) of the inner pieces 21a, 22a of the lower connecting plate 22 are fixed by nuts. Each of the lower connecting plates 22 is provided with four stop holes 21b and 22b, and preferable stop holes 21b and 22b can be used according to the position of the trap 106 of the vent 2. Further, the attaching portion 12 of the turlap 8 is overlaid on the cross member 102 of the vent 2, and the bolt inserted into the hole of the attaching portion 12 and the hole of the cross member 102 is fixed with a nut. As shown in FIG. 1, when the bent 2 is laid sideways as shown in FIG. 4A by attaching the back panel 4 of the folding scaffold 1 with the vent 2 side, the folding scaffold 1 overlaps the vent 2, On the top, the side panel 5 and the front panel 6 are overlapped in order and folded.

[How to unfold a bent scaffolding]
In order to unfold the folding scaffold 1 of the present invention, the front panel 6 of the folding scaffold 1 folded on the vent 2 in a state where the vent 2 is sideways as shown in FIG. 4 is shown in FIGS. ) In this order, and the bottom panel 3 is raised as shown in FIG. 5C to be as shown in FIG. When the bottom panel 3 is raised as shown in FIG. 5 (c), the bolt 60 which is detached from the top of the bottom panel 3 is screwed as shown in FIG. 10 (a), and the bottom panel 3 is placed over as shown in FIG. 10 (b). So that the bottom panel 3 does not fall down. The folding scaffold 1 developed in a box shape as shown in FIG. 5C is such that the side panel 5 stands up perpendicularly or substantially at right angles to the back panel 4 as shown in FIG. The side frame 5a and the front frame 6a of the front panel 6 are supported by the support 7, and the side panel 5 and the front panel 6 are held in a box shape.

  When the vent 2 is erected (the vertical column 101 is in a vertical orientation) after being expanded into the box shape and the vent 2 is stacked up and down as shown in FIGS. The scaffold 1 protrudes to the side of the vent (side of the support work). When the worker climbs the wrap 8 and reaches the bottom surface of the folding scaffold 1, the operator pushes up the opening / closing floor 32 (FIG. 6) of the bottom panel to open the entrance 31a, and the folding scaffold 1 is opened from the entrance 31a as shown in FIGS. You can get inside.

[How to fold a vent with a folding scaffolding]
The bent scaffolding vent 100 is disassembled after use, and the vertical column 101 is turned sideways and lowered onto the ground. As shown in FIG. 10 (b), the bolt 60 protruding above the bottom panel 3 is pulled out as shown in FIG. 10 (a) and removed from above the bottom panel 3. The bottom surface is opposite to FIG. Tilt panel 3 to the rear panel. The front panel 6 is pushed down in the order of FIG. 5B and FIG. 5A, the both side panels 5 are stacked on the back panel 4, and the both side panels 5 are stacked on the front panel 6. FIG. Fold as shown in a).

(Usage example 1 of folding scaffolding)
When the folding scaffold 1 according to the present invention is used, the front panel 6 of the folding scaffold 1 folded on the vent 2 is shown in FIGS. The bottom panel 3 is raised as shown in FIG. 5C and developed into a box shape as shown in FIG. 4B. In this case, as shown in FIG. 11A, when the side panel 5 is erected at a right angle or a substantially right angle with respect to the back panel 4, the side frame 5 a of the side panel 5 and the front frame 6 a of the front panel 6 are supported by the support 7. The side panel 5 and the front panel 6 are held in a box shape. In this state, the vent 2 is erected (the vertical column 101 is vertically oriented), and the vent 2 is stacked up and down as shown in FIG. 2 and FIG. It protrudes to the side (side of the support work). When the worker climbs the wrap 8 and reaches the bottom surface of the folding scaffold 1, the operator pushes up the opening / closing floor 32 (FIG. 6) of the bottom panel 3 to open the entrance 31a, and the folding scaffold 1 is opened from the entrance as shown in FIGS. It is possible to carry out the connecting work of the vents 2 and the other necessary work that are stacked in the upper and lower parts.

(Usage example 2 of folding scaffolding)
The folding scaffold 1 of the present invention can be used separately from the vent 2 and attached to a support structure in which the vents 2 without the folding scaffold 1 are stacked and connected. It can also be attached to buildings and other structures other than support works. In this case, it is easy to attach the folding scaffold 1 after expanding it into a box shape.

  In the said embodiment, although the case where the folding scaffold 1 is fixed and used for the vent 2 is demonstrated as an example, the folding scaffold 1 of this invention is the support work in a construction site of a highway or a footbridge, a building, and other At construction sites such as buildings, it can be used by attaching to various structures.

DESCRIPTION OF SYMBOLS 1 Folding scaffold 2 Vent 3 Bottom panel 4 Back panel 4a Back frame 5 Side panel 5a Side frame 6 Front panel 6a Front frame 7 Supporting tool 8 Tall 9 (Vertical frame) Vertical material 9a Through hole 10 (Back frame) Cross member 10a (second from the top) cross member 10b (third from the top) cross member 11 ladder portion 11a step bar 12 mounting portion 14 upper connecting plate 14a (upper connecting plate) insertion hole 15 lower connecting plate 15a (lower connecting) Insertion hole of plate 16 Stop hole 17 Stop pin (bolt)
18 Nut 19 Connector (Bolt)
21 Upper connecting plate 21a Inner piece (on the upper connecting plate) 21b Stop hole (on the inner piece of the upper connecting plate) 22 Lower connecting plate 22a Inner piece 22 (on the lower connecting plate) Stop hole (on the inner piece of the lower connecting plate) 23 skirting board (on rear frame) 24 connecting plate 25 insertion hole 26 stopper 28 flat plate material 31 fixed floor 31a doorway 31b peripheral frame 32 open / close floor 33 fixed floor frame 33a stop hole 34 floor material 37 open / close floor frame 37a (opening / closing floor frame) side portion 37b (opening / closing floor frame) side portion 38 floor material 39 connecting pin 40 stopper 41a (side frame) rear longitudinal member 41b (side frame) front longitudinal member 42 (side frame) Upper material 42a (Upper material) Projection part 43 Lower material 44 (Side frame) Cross member 45 (Side frame) Diagonal material 46 (Side frame) Skirting board 46a (Side frame Skirting board) End 47 Insertion hole 48 Connecting plate 49 Insertion hole 52 Upper material (for front frame) 53 Lower material (for front frame) Vertical material 55 (for front frame) Horizontal material 56 (for front frame) Width Wood 57 Support 58 Handle 59 Plate 60 Bolt 72 Connection shaft 100 Vent with folding scaffold 101 Vertical column 102 Horizontal material 103 Diagonal material 104 Strut part 105 Base plate 105a Upper base plate 105b Lower base plate 106 Tarlap 107 Through hole 108a Upper surface material brace 108b Lower surface material Brace B Support base

Claims (10)

The bottom panel is a box with a top panel that has a rear panel on the back, a front panel on the front, and side panels on both sides, and supports any of these panels for vents, supports, building structures, etc. A scaffold that can be attached to the body,
The bottom panel, back panel, both side panels, and front panel can be folded in the order of the bottom panel, the top panel on both sides, and the front panel on top.
When the front panel is pulled up from the folded state, both side panels folded under the front panel are unfolded forward on both sides of the rear panel, and the front panel is unfolded on the front of both side panels and overlapped with the rear panel. It is connected so that the bottom panel can be laid sideways in front of the back panel,
The both side panels and the front panel are connected by a support so that the back panel, the front panel, and the both side panels are held in a square frame shape in the unfolded state, and the back panel and the front panel held in the square frame shape are By tilting the bottom panel inside the side panels, the back panel, front panel, both side panels and bottom panel can be assembled into a box shape with the top opening,
In the assembled state, the bottom panel is erected and stacked on the back panel, both side panels are stacked on the bottom panel, and the front panel is stacked on both side panels so that it can be returned to the folded state. Folding scaffold characterized by that. In the folding scaffold of Claim 1,
The bottom panel is attached to the bottom of the back panel so that it can be rotated from the folded state overlying the back panel to the front side of the back panel, and the side panel is folded from the folded state overlaid on the bottom panel. It is attached to the side part of the back panel so that it can rotate to the unfolded state that protrudes to the front of the front panel, and the front panel is folded over the side panel from the front side of the side panel that protrudes to the front of the back panel. Folding scaffold characterized by being attached to a side panel so that it can be rotated to the deployed state. In the folding scaffold according to claim 1 or claim 2,
The folding scaffolding support is an elongated material, and the support is provided at the two upper corners and the two lower corners composed of the side panel and the front panel, and the support at the upper corner is above the side panel. It spans the frame and the upper frame of the front panel. One end of the frame is mounted on the upper frame of the side panel, and the other end is rotatably mounted on the upper frame of the front panel. It spans the lower frame and the lower frame of the front panel, one end of which is rotatably attached to the lower frame of the side panel and the other end is rotatably attached to the lower frame of the front panel. The frame of the side panel is folded when it is folded up and rises with the expansion of the front panel, and is expanded until both side panels protrude forward of the rear panel and the side panel side edge is abutted with the front panel side edge. Material and front panel Scaffolding fold serial frame member is supported by both side panels and the front panel by support is characterized in that so as to be held in the expanded state. The folding scaffold according to any one of claims 1 to 3,
During deployment, the frame material of both side panels and the frame material of the front panel are connected by a support so that an unequal triangle is formed, and the unequal triangle is secured and the both sides panel and the front panel are held in the expanded state. The folding scaffold is characterized in that, when folded, the support is rotated and folded along the frame material of the side panel. The folding scaffold according to any one of claims 1 to 4,
One or more of the back panel, the side panel, and the front panel is provided with a trap so that an operator can enter and exit the scaffold that is expanded in a box shape by raising and lowering the trap. Folding scaffold. In the folding scaffold according to any one of claims 1 to 5,
A folding scaffold characterized by providing an entrance / exit on the bottom panel and an openable / closable lid at the entrance / exit so that an operator can enter and exit the box-like scaffold. The folding scaffold according to claim 6,
A folding scaffold characterized in that it is of an openable / closable type that opens when the lid is pushed upward from the bottom and closes when the lid is pulled down, or a slidable type that can be opened and closed laterally. In the folding scaffold according to claim 6 or 7,
A trap is provided on the entrance / exit side of the bottom panel, so that an operator who climbs the ramp can enter the box-shaped scaffold from the entrance and exit, and the worker in the scaffold can descend from the entrance to the trap. Folding scaffold characterized by that.   A bent scaffold with a folding scaffold, wherein the folding scaffold according to any one of claims 1 to 8 is attached to a vent, and the folding scaffold can be folded and unfolded in the attached state.   The bent scaffolding vent according to claim 9, wherein the folding scaffolding vent is attached to the vent with the back panel with the folding scaffolding lap on the vent side.

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