JP7158716B2 - Connectors for assembling and dismantling scaffolding - Google Patents

Description

The present invention relates to a connector for assembling and dismantling scaffolding.

At a construction site, a scaffolding is used in which a plurality of scaffolding units are arranged side by side and stacked vertically and horizontally along the frame of a building. As a scaffolding unit, for example, there is a wedge binding type scaffolding unit described in Patent Document 1.

The wedge-tied scaffolding unit includes a plurality of front and rear pillars, a horizontal member that connects the front and rear corresponding pillars in pairs, a front connection member that connects the front pillars, and a rear pillar. It is composed of a rear connecting member for connecting each other, and a footboard supported at a predetermined height position of each pillar. Then, each of the horizontal member, the front connecting member and the rear connecting member is connected to the wedge body provided on each member of the horizontal member, the front connecting member and the rear connecting member, and the wedge receiver provided on the column. Each of the members is removably connected to a post.

That is, in the wedge binding type scaffolding unit, each member such as a column, a horizontal member, a front connecting member, a rear connecting member, etc. is handled separately, so there is no bulk during transportation and storage, and each member can be handled with light work. It can be unitized in a short time, and can be unitized by absorbing deformation strain due to the course of use of each material. In addition, by employing long columns, scaffolding for two or three stories (for the second or third floor of a building) can be constructed with one scaffolding unit.

In order to improve the safety and productivity of assembling and dismantling scaffolding at construction sites, such wedge-tightened scaffolding units are installed on the lower layer side by lifting unitized scaffolding units on the ground with a crane or the like. The used scaffolding unit on the upper layer is removed from the scaffolding unit on the lower layer side and suspended on the ground by a crane or the like.

However, when suspending a wedge-tied scaffolding unit with a suspension wire provided on a crane or the like, for example, when multiple columns (three or more columns) are provided in the front and rear directions in multiple rows (three rows or more), each of the front and rear pillars is installed on both the left and right sides. If only the pillar is attached to the suspension wire and hung, the middle pillar in the left-right direction may fall due to the disconnection of the wedge connection with the front and rear connecting members, or the front and rear connecting members to which the middle pillar is wedged may become large There is a risk that the wedge will hang down as if it were sinking, causing breakage of the wedge or the like. On the other hand, when all the pillars in the left-right direction are attached to the sling wires and hung, a large number of sling wires corresponding to the number of the pillars are required.

Therefore, as described in Patent Document 2, the applicant of the present invention has proposed a plurality of scaffolding units arranged in multiple rows in the front, rear, left, and right directions of the scaffolding unit in order to safely, reliably, and easily suspend the scaffolding unit by a suspension wire provided on a crane or the like. It has been proposed to lift or suspend the scaffolding unit via suspension beams arranged in a straight line across all of the pillars of the book and anchored to each pillar at least in their axial direction.

According to the method for assembling and dismantling scaffolding described in Patent Document 2, even if the number of pillars in the front and rear of the scaffolding unit is large, a suspension beam that crosses all the front and rear pillars without preparing a large number of suspension wires. are provided, and the suspension beams are fixed to each pillar at least in the axial direction, so that the scaffold unit can be easily suspended via the suspension beams.

JP-A-6-280382 JP 2010-222884 A

However, the scaffold assembly and dismantling method described in Patent Document 2 has the following problems.

(1) The length L of each of the front and rear suspension beams, which are arranged in a straight line across all of the multiple columns in the front, rear, left, and right directions of the scaffolding unit and are continuous in the left and right direction, shall be When k is the interval between adjacent columns in a total of n column groups forming n rows, it becomes long as L = n x k (for example, when n = 4 and k = 900 mm, L = 3.6m). Each of the front and rear suspension beams must have sufficient strength to prevent bending of the suspension beam itself when suspending a large scaffolding unit having n pillars in the front and rear. It becomes a heavy object because it is composed of iron materials, etc., and imposes a certain amount of work load on the worker.

(2) Each of the front and rear suspension beams traverses in a straight line across all of the multiple columns that form multiple rows in the front, back, left, and right directions of the scaffolding unit, and is stopped by each column in their axial direction. Therefore, some of the plurality of pillars are lengthened by fitting upper and lower short pillars vertically, and the suspension beams are fixed to the upper short pillars of the some of the pillars. In such a case, when the scaffolding unit is suspended using the suspension beam, the lower short pillars of some of the pillars fall out of the lower ends of the corresponding upper short pillars, making it impossible to lift or lower the scaffolding unit.

An object of the present invention is to simply and reliably hang a scaffolding unit by a crane or the like.

The invention according to claim 1 is composed of a plurality of front and rear pillars, a horizontal member that connects the corresponding front and rear pillars in pairs, and a front connection that connects the pillars adjacent in the left and right direction on the front side. a scaffolding unit composed of a timber, a rear connecting member that connects adjacent pillars in the left-right direction on the rear side, and a tread plate that is supported at a predetermined height position of each pillar; Each member of the horizontal member, the front connecting member, and the rear connecting member is connected to the pillar through the wedge connection between the wedge body provided on each member of the front connecting member and the rear connecting member and the wedge receiver provided on the pillar. A connecting body used for assembling and dismantling a scaffold constructed by arranging a plurality of scaffolding units, which is of a wedge binding type that is detachably connected, and is used for assembling and dismantling pillars adjacent in the left-right direction of the scaffolding unit. It has a plurality of engagement holes that can be engaged with the respective wedge receivers, and the pillars can be connected to each other . It consists of a plate, and when the plate has one side and another side that are generally perpendicular to each other, one at two positions along the other side that intersects at one end side of one side, and two pillars provided at two positions above and below the pillar. Equipped with two engagement holes that can be engaged with each of the wedge receivers, and one engagement hole that can be engaged with one wedge receiver provided on another pillar at one position on the other end side of one side. is provided .

The invention according to claim 2 is the invention according to claim 1, further comprising: a front connecting body connecting columns adjacent in the left-right direction on the front side of the scaffolding unit; It is made up of a rear connecting body for connecting adjacent pillars to each other.

The invention according to claim 3 includes a plurality of front and rear pillars, a horizontal member that connects the front and rear corresponding pillars in pairs, and a front connection that connects the front side pillars adjacent in the left and right direction. a scaffolding unit composed of a timber, a rear connecting member that connects adjacent pillars in the left-right direction on the rear side, and a tread plate that is supported at a predetermined height position of each pillar; Each member of the horizontal member, the front connecting member, and the rear connecting member is connected to the pillar through the wedge connection between the wedge body provided on each member of the front connecting member and the rear connecting member and the wedge receiver provided on the pillar. A method for assembling and dismantling scaffolding, which is constructed by arranging a plurality of scaffolding units of a wedge binding type that is detachably connected, and is provided for each of the pillars adjacent to each other in the left-right direction of the scaffolding units. Adjacent pillars are connected to each other at a part of the scaffolding unit in the left-right direction by using a connector that has a plurality of engagement holes that can be engaged with certain wedge receivers and that allows the pillars to be connected to each other. In a state in which the pillars that are adjacent in the other part in the left-right direction are connected by another connecting body, one of the pillars that are adjacent in the above-mentioned part in the left-right direction or the above 1 The scaffolding unit is suspended via suspension means attached to one connecting body and another suspension means attached to one of the pillars or the other connecting body at the other part in the left-right direction. It is designed to have a process of lifting or lowering .

(Claim 1, 3 )
(a) A plurality of pillars arranged in multiple rows in the left-right direction of the scaffolding unit are connected to each other via connecting bodies. Therefore, when suspending means such as suspending wires provided on a crane or the like are attached to some (and some other) columns or one (and another one) connecting body to suspend the scaffolding unit, each Through the engagement between the engagement hole of the connector and the wedge holder of each pillar, the entire scaffolding unit can be lifted or lowered in an integrated state. Therefore, even if the scaffolding unit has a large number of pillars arranged in multiple rows in the left-right direction, the scaffolding unit can be easily hung without preparing a large number of hanging wires.

(b) A scaffolding unit consists of a connector that connects adjacent pillars to each other in a part of the scaffolding unit in the left-right direction, and another connection that connects the pillars to each other in the other part in the left-right direction. The body is what connects the pillars across them to each other. Therefore, each connecting body does not have a large cross-section and a long length that traverses all of the pillars that are arranged in multiple rows in the left-right direction of the scaffolding unit. It is easy to handle and can reduce the work burden on workers.

(c) Each connector crosses all of the columns in multiple rows in the left-right direction of the scaffolding unit in a straight line, and is not stopped by each column in their axial direction. Adjacent pillars are connected to each other in each part of the direction. Therefore, when some columns in the left-right direction of the scaffolding unit are elongated by fitting upper and lower short columns vertically, the application of the connecting body to the part of the columns By engaging with the lower short pillar in the above, when the scaffolding unit is suspended, the lower short pillar is prevented from falling off from the lower end of the upper short pillar of the part of the pillar, and the scaffolding unit is lifted. Or you can hang it down.
(Claim 1)
(d) By making the connecting body plate-like, the weight of the connecting body can be reliably reduced, the handleability of the worker can be improved, and the work load can be further reduced.
(Claim 1)
(e) When the scaffolding unit is suspended, the connecting body consisting of a right-angled triangular plate engages two engagement holes on one end side with two upper and lower wedge supports of one pillar, and the other end side is engaged with a wedge receiver of another column. Therefore, the rotational moment of the force acting on the other end side of the connecting body from the side of the other one pillar is prevented from turning by the upper and lower two wedge bearings of the one pillar on the one end side of the connecting body. Supported. As a result, the connecting body can be stably engaged with two adjacent pillars, and the scaffolding unit can be stably lifted or lowered. Moreover, by forming the connecting body in the shape of a right-angled triangle, the connecting body is lighter in weight than a rectangular connecting body having two engaging holes on each side.

(Claim 2)
(f) The connecting bodies of (a) to (e) are the front side connecting body that connects the pillars adjacent to each other in the left and right direction on the front side of the scaffolding unit, and the pillars that are adjacent to each other in the left and right direction on the rear side. All the front, rear, left, and right pillars constituting the scaffolding unit are reliably connected to each other by the connecting members, and the scaffolding unit is stably lifted or lowered. can.

FIG. 1 is an overall perspective view showing a construction state of a scaffolding unit. FIG. 2 is a perspective view showing a suspended state of the scaffolding unit by a crane. FIG. 3 is a front view showing a state in which the connecting body is attached to the scaffolding unit. FIG. 4 is a front view showing a modification of the scaffolding unit in which the connector is attached. FIG. 5 is an enlarged view of a main portion of FIG. 3. FIG. FIG. 6 is a schematic diagram showing a drop-off prevention structure of a connecting body with respect to a wedge support of a pillar. FIG. 7 is a schematic diagram showing another drop-off prevention structure of the connecting body to the wedge support of the pillar.

The scaffolding unit 10 shown in FIG. 1 includes a plurality of (four in this embodiment) pillars 11F on the front side, a plurality of (four in this embodiment) pillars 11R on the rear side, and front and rear corresponding pillars. A horizontal member 12 that connects the 11F and 11R in pairs, a front connecting member 13A that connects the front pillars 11F together, a rear connecting member 13B that connects the rear pillars 11R together, and the pillars 11F and 11R. and a footboard 14 supported at a predetermined height position. In the scaffolding unit 10, the side farther from the skeleton of the building in which the scaffolding unit 10 is used is called the front side, and the side closer to the skeleton is called the rear side.

The scaffolding unit 10 of this embodiment is of a detachable connection type, and each member of the horizontal member 12, the front connecting member 13A, and the rear connecting member 13B is connected to the pillars 11F and 11R via the detachable connecting portion 20. A front connecting member 13A and a rear connecting member 13B provided above the footboards 14 of the pillars 11F and 11R are used as handrails 15 corresponding to the waist height of the operator. Two hooks 14A provided at both ends of the footboard 14 are engaged with the adjacent horizontal members 12, 12. As shown in FIG.

The detachable connection type scaffolding unit 10 of the present embodiment is of a wedge binding type, and includes two bag-like wedge receivers 21, 21 provided on the front and rear surfaces of the respective pillars 11F, 11R, and the left and right side surfaces of the respective pillars 11F, 11R. The attachment/detachment connecting portion 20 is constituted by a combination of two bag-like wedge receivers 22, 22 provided in the inner portion and wedge bodies 23 provided at both ends of each member 12, 13A, 13B. In this embodiment, the wedge receiver 21 is arranged below the wedge receiver 22 so as to form a step. The wedge bodies 23, 23 at both ends of the horizontal member 12 are inserted into the opposing wedge receivers 21, 21 of the corresponding front and rear columns 11F, 11R and pressed down to join together. The wedges 23, 23 at both ends of the front connecting member 13A are inserted into the opposing wedge receivers 22, 22 of the adjacent front pillars 11F, 11F, and pushed down, thereby wedging. The wedge bodies 23, 23 on both ends of the rear connecting member 13B are inserted into the wedge receivers 22, 22 facing each other on the adjacent rear columns 11R, 11R and pressed down, thereby wedging them.

Accordingly, the scaffolding unit 10 is constructed on the ground at the construction site as follows.

(1) An underbase 1 is installed on the ground, and a pipe jack 2 is seated on the underbase 1.

(2) The bottom hollow portions of the pillars 11F and 11R are inserted through the pipe jack 2 on the underbase 1 and supported. The wedge bodies 23 at both ends of the horizontal member 12 are wedged to the wedge receivers 21, 21 of the front and rear corresponding columns 11F, 11R, and the front connecting member 13A is connected to the wedge receivers 22 of the adjacent columns 11F, 11F on the front side. The wedge bodies 23 at both ends of the rear connecting member 13B are wedged and joined to the wedge receivers 22 of the adjacent pillars 11R and 11R on the rear side, and the wedge bodies 23 at both ends of the rear connecting member 13B are wedged and joined to each other. , 12 are engaged with hooks 14A at both ends of the footboard 14. As shown in FIG.

However, at a construction site, the scaffolding units 10 are constructed on the ground as described above, and a plurality of scaffolding units 10 are arranged side by side in order in the horizontal and vertical directions along the skeleton of the building so as to be adjacent or stacked. Assemble the scaffold and then dismantle it. That is, the scaffolding units 10 unitized on the ground are lifted by the crane 100 and mounted on and connected to the installed scaffolding units 10 on the lower layer side, or the used scaffolding units 10 on the upper layer are moved to the scaffolding on the lower layer side. It is removed from the unit 10 and suspended on the ground by a crane 100. - 特許庁A method of assembling and dismantling a scaffolding using the scaffolding unit 10 will be described below.

In this embodiment, as shown in FIGS. 2 and 3, a plurality of engagement holes 41 are provided for engagement with the wedge receivers 21 provided on the pillars 11F, 11F adjacent to each other in the left-right direction on the front side of the scaffolding unit 10. and use a front connecting body 30F that connects the adjacent pillars 11F to each other.

In addition, in this embodiment, a plurality of engagement holes 41 are provided in which the wedge receivers 21 provided on the columns 11R, 11R adjacent to each other in the lateral direction on the rear side of the scaffolding unit 10 can be engaged. A rear connecting body 30R is used to connect adjacent pillars 11R to each other.

In this embodiment, the front connecting body 30F and the rear connecting body 30R are made of plates of the same shape.

2 and 3 exemplify that the rear pillar 11R and the rear connecting body 30R are arranged so as to overlap with the back surface of the front pillar 11F and the front connecting body 30F of the scaffolding unit 10, The rear pillar 11R and the rear connecting body 30R are not shown.

Therefore, on the front side of the scaffolding unit 10, a first connecting body 31F on the left that connects the pillars 11FA and 11FB adjacent to each other in a part in the left-right direction of the scaffolding unit 10 and a first connecting body 31F in the other part in the left-right direction. The right second connector 32F that connects the adjacent pillars 11FC and 11FD to each other connects the pillars 11FA and 11FB that are adjacent to each other on the front side of the entire scaffolding unit 10 via the connector 31F. In addition, adjacent pillars 11FC and 11FD are connected to each other via connecting bodies 3F.

Similarly, on the rear side of the scaffolding unit 10, a first connector 31R on the left that connects the columns 11RA and 11RB adjacent to each other in a part in the left-right direction of the scaffolding unit 10 and another part in the left-right direction By the right second connector 32R that connects the adjacent columns 11RC and 11RD to each other, the columns 11RA and 11RB that are adjacent on the rear side are connected to each other via the connector 31R over the entire scaffolding unit 10. Along with being connected, the adjacent pillars 11RC and 11RD are connected to each other via the connecting body 32R.

That is, in the method of assembling and dismantling the scaffolding according to the present embodiment, the entire scaffolding unit 10 is covered with pillars 11F (11FA and 11FB, 11FC and 11FD) and pillars 11R (11RA and 11RB, 11RC and 11RD) are connected to each other via the front connecting bodies 30F (31F, 32F) and the rear connecting bodies 30R (31R, 32R). It is attached to 11FB and pillar 11FC, pillar 11RB and pillar 11RC (or left and right connecting bodies 31F and 32F, 31R and 32R), and has a step of lifting or lowering the scaffold unit 10 concerned. In this case, the suspension wires 101 provided on the crane 100 may be attached to the left and right pillars 11FA and 11FD, and to the pillars 11RA and 11RD (the suspension wires 101 indicated by two-dot chain lines in FIG. 3).

FIG. 4 relates to a scaffolding unit 10A that is a modification of the scaffolding unit 10 shown in FIG. In the scaffolding unit 10A, some of the columns 11F (for example, 11FA) in the left-right direction are lengthened by vertically fitting two upper and lower short columns A1 and A2 (the lower short columns are attached to the inner diameter portion of the lower end of the upper short column A1). The upper end diameter reduced portion of the column A2 is fitted), and the other columns 11F (for example, 11FB to 11FD) are one and long in shape. In this case, it is assumed that the application of the connector 30F to the partial pillar 11FA of the scaffolding unit 10A engages the lower short pillar A2 of the partial pillar 11FA. That is, for example, the engagement hole 41 (engagement hole 41C described later with reference to FIG. 5) of the connecting body 30F is engaged with the wedge receiver 21 of the lower short pillar A2 of the pillar 11FA.

In addition, in the scaffolding unit 10A, in addition to applying the one connecting body 30F to the lower short pillar A2 of the part of the pillars 11F, another one connecting body is applied to the upper short pillar 1A of the pillar 11F. Of course, 30F (30F indicated by a two-dot chain line in FIG. 4) may be applied.

Further, in the pillar units 10 and 10A, the pillars 11FB and 11FC (or the pillars 11RB and 11RC) adjacent to each other at the center are connected via the third connecting body 33F (or connecting body 33R) (FIGS. 3 and 4). may be connected to each other.

Here, the front connecting body 30F (the same applies to the rear connecting body 30R) is, as shown in FIG. Two engagement holes 41 that can be engaged with two wedge receivers 21 (21A, 21B) provided at two upper and lower positions of one post 11F at two positions along the short side that intersects at one end of the sides. (41A, 41B), and one engagement hole 41 (41C) which can be engaged with one wedge receiver 21 (21C) provided on the other one post 11F at one position on the other end side of the long side. ).

In addition, in the connecting body 30F (the same applies to the connecting body 30R) shown in FIG. One or more (three in FIG. 5) engaging holes 41 (41D, 41E, 41F) adjacent along the long side are provided. In the connecting body 30F, the distance between each of the engaging holes 41C to 41F and the engaging hole 41A varies depending on the change in the installation interval k between the adjacent pillars 11F in the scaffolding unit 10 to which the connecting body 30F is applied. For example, it is set to 1.8m, 1.5m, 1.2m, 0.9m so as to correspond.

Accordingly, when the scaffolding is assembled or dismantled, the scaffolding unit 10 (10A) is hung according to claim 100 as follows.

(1) After constructing the scaffolding unit 10 on the ground, a worker or the like standing on the top tread 14 attaches the front connecting bodies 30F (31F, 32F) to the front pillars 11F (11FA to 11FD), The rear connecting bodies 30R (31R, 32R) are attached to the side pillars 11R (11RA to 11RD).

(2) Suspension wires 101 provided on the crane 100 or the like are attached to, for example, two central columns 11FB and 11FC, columns 11RB and 11RC (or left and right connectors 31F and 32F, 31R and 32R), and the scaffold unit 10 lift the whole The inner diameter portions of the lower ends of the pillars 11F and 11R of the scaffolding unit 10 lifted by the crane 100 or the like are inserted into the reduced diameter portions of the upper ends of the pillars 11F and 11R of the scaffolding unit 10 already installed on the lower layer side of the scaffolding, and the scaffolding unit 10 is moved to the lower layer side. are mounted on the scaffold unit 10 and connected to assemble the scaffold. Each connector 30F, 30R is removed from the scaffolding unit 10. As shown in FIG.

(3) Attach the front connecting body 30F and the rear connecting body 30R to the used scaffolding unit 10 on the upper layer of the scaffolding in the same manner as in (1) above.

(4) Suspension wires 101 provided on the crane 100 or the like are attached to, for example, two central columns 11FB and 11FC, columns 11RB and 11RC (or left and right connectors 31F and 32F, 31R and 32R), and the scaffolding unit 10 The whole scaffolding unit 10 is lifted and removed from the lower layer side, the scaffolding unit 10 is suspended on the ground, and the scaffolding is dismantled. Each connector 30F, 30R is removed from the scaffolding unit 10. As shown in FIG.

Therefore, according to the method of assembling and dismantling scaffolding using the connecting bodies 30F and 30R of the present embodiment, the following effects are obtained.

(a) A plurality of pillars 11F and 11R arranged in multiple rows in the horizontal direction of the scaffolding unit 10 are connected to each other via connecting bodies 30F and 30R. Therefore, when the suspension wires 101 provided on the crane 100 or the like are attached to the columns 11F, 11R or the connecting bodies 30F, 30R to suspend the scaffolding unit 10, the engaging holes 41 of the connecting bodies 30F, 30R and the columns 11F, Through the engagement with the wedge receiver 21 of 11R, the scaffolding unit 10 can be lifted or lowered in an integrated state. Therefore, even if the number of pillars 11F and 11R forming multiple rows in the horizontal direction of the scaffolding unit 10 is large, the scaffolding unit 10 can be easily hung without preparing a large number of hanging wires 101. - 特許庁

(b) The scaffolding unit 10 includes connecting bodies 30F and 30R that connect the pillars 11F and 11R that are adjacent to each other in a part of the scaffolding unit 10 in the left-right direction, and the columns that are adjacent to each other in the other part in the left-right direction. Other connectors 30F and 30R that connect the 11F and 11R to each other connect the pillars 11F and 11R over their entirety to each other. Therefore, each connecting body 30F, 30R does not have a large cross section and a long length, such as crossing all of the columns 11F, 11R arranged in multiple rows in the left-right direction of the scaffolding unit 10, and is lightweight. It can be easily handled by a worker as an object, and can reduce the work burden on the worker.

(c) Each connector 30F, 30R traverses all of the columns 11F, 11R arranged in multiple rows in the left-right direction of the scaffolding unit 10 in a straight line, Instead of being stopped, the pillars 11F and 11R adjacent to each other in each portion of the scaffolding unit 10 in the left-right direction are connected to each other. Therefore, when some of the pillars 11F and 11R in the horizontal direction of the scaffolding unit 10 are lengthened by vertically fitting the upper and lower short pillars A1 and A2, the pillars 11F and 11R are By applying the connecting bodies 30F and 30R to the lower short pillars A2 of the pillars 11F and 11R, the upper parts of the pillars 11F and 11R when the scaffolding unit 10 is hung are suspended. The scaffolding unit 10 can be lifted or lowered while avoiding the lower short pillar A2 falling off from the lower end of the short pillar A1.

(d) The connecting bodies 30F, 30R of (a) to (c) are the front side connecting body 30F that connects the pillars 11F, 11R adjacent to each other in the left and right direction on the front side of the scaffolding unit 10, and the left and right rear side connecting bodies 30F. By forming the rear side connecting body 30R that connects the pillars 11F and 11R that are adjacent to each other in the direction, all of the front, rear, left and right pillars 11F and 11R that constitute the scaffolding unit 10 are connected to the connecting bodies 30F and 11R. The scaffolding units 10 can be stably lifted or lowered by being securely connected to each other by 30R.

(e) By making the connecting members 30F and 30R plate-shaped, the weight of the connecting members 30F and 30R can be reduced, the handling of the workers can be improved, and the work load can be further reduced. can.

(f) When the scaffolding unit 10 is hung, the connecting bodies 30F and 30R made of right-angled triangular plates are connected to the two engaging holes 41A and 41B on one end side of the pillars 11F and 11R. The wedge receivers 21A and 21B are engaged, and one engagement hole 41C on the other end side is engaged with the wedge receiver 21C of the other one column. Therefore, the rotational moment of the force acting on the other end side of the connecting bodies 30F, 30R from the side of the other one of the columns 11F, 11R is applied to the one end side of the connecting bodies 30F, 30R. is stopped and supported by two upper and lower wedge receivers 21 of . As a result, the connecting bodies 30F and 30R are stably engaged with the two adjacent pillars 11F and 11R, and the scaffolding unit 10 can be stably lifted or lowered. In addition, the connecting bodies 30F and 30R having a right-angled triangular shape are lighter in weight than a rectangular connecting body having two engaging holes 41 on each side.

6 and 7 show a drop-off prevention structure of the connecting body 30F (same for 30R) with respect to the wedge receiver 21 of the column 11F (same for 11R).

FIG. 6 shows a state in which the engaging hole 41 of the connecting body 30F is engaged with the wedge receiver 21 of the column 11F, and a wedge-shaped stopper 50 is driven into the wedge hole of the wedge receiver 21 on the far side from the front surface of the column 11F. is. The connecting body 30F is held by being pressed between the wedge-shaped stopper 50 and the column 11F.

In FIG. 7, a connector 30F is applied to both the front and back of each column 11F of the scaffolding unit 10, and the column 11F is sandwiched from both front and back sides by two connectors 30F, and is provided on the front and back of the column 11F. The two connecting bodies 30F are held together by drawing means such as bolts in a state in which the engaging holes 41 of the two connecting bodies 30F are engaged with the wedge receivers 21 on both sides of the front and back. . The two connecting bodies 30F are engaged with the wedge receivers 21 of the column 11F to sandwich the column 11F, and the connecting bodies 30F are pulled together by the bolts 60 and nuts 61 that are inserted therethrough. is held while pressing the column 11F.

Although the embodiment of the present invention has been described in detail with reference to the drawings, the specific configuration of the present invention is not limited to this embodiment, and the design may be changed without departing from the gist of the present invention. Included in the present invention. For example, the connecting body 30F (the same applies to 30R) is not limited to a right-angled triangular shape, but has a strip-like shape and is engaged with one wedge support of each adjacent pillar on one end side and the other end side thereof. Further, a plurality of each of a plurality of each of which can be engaged with two or more wedge receivers of adjacent columns on one end side and the other end side of the rectangular shape or the like. It is also possible to adopt one having an engaging hole.

According to the present invention, the scaffolding unit can be easily and reliably hung by a crane or the like.

10, 10A Scaffold units 11F, 11R Column 12 Horizontal members 13A, 13B Connecting member 14 Footboards 21, 22 Wedge receiver 23 Wedge body 30F, 31F to 33F Front side connecting body 30R, 31R to 33R Rear side connecting body 41 Engagement hole 101 Suspension wire (suspension means)
A1, A2 short columns

Claims (3)

Multiple front and rear pillars, horizontal members that connect the corresponding front and rear pillars in pairs, front connecting members that connect the front side left and right adjacent pillars, and rear side left and right directions. A scaffolding unit composed of a rear connecting member that connects adjacent pillars with each other and a tread plate that is supported at a predetermined height position of each pillar is a horizontal member, a front connecting member, and a rear connecting member. A wedge connection that detachably connects each member of the horizontal member, the front connection member, and the rear connection member to the pillar through the wedge connection between the wedge body provided on each member and the wedge receiver provided on the pillar. A connecting body used for assembling and dismantling a scaffold constructed by arranging a plurality of such scaffolding units,
Provided with a plurality of engagement holes that can be engaged with respective wedge receivers provided in each of the pillars adjacent to each other in the lateral direction of the scaffolding unit so that the pillars can be connected to each other.and
the connecting body is made of a plate,
When the connecting body is generally a right-angled triangular plate, and the plate has one side and another side that are generally perpendicular to each other, one pillar is positioned vertically 2 at two positions along the other side that intersects at one end of the one side. Equipped with two engagement holes that can be engaged with two wedge receivers provided at the respective positions, and engaged with one wedge receiver provided on another pillar at one position on the other end side of one side. Equipped with one engagement hole that can be Connectors for assembling and dismantling scaffolds. The connecting body comprises a front side connecting body for connecting pillars adjacent to each other in the left and right direction on the front side of the scaffolding unit, and a rear side connecting body for connecting pillars to each other in the left and right direction on the rear side of the scaffolding unit. A connector for assembling and dismantling the scaffold according to item 1. Multiple front and rear pillars, horizontal members that connect the front and rear corresponding pillars in pairs, front connecting members that connect the front side left and right adjacent pillars, and rear side left and right directions. A scaffolding unit composed of a rear connecting member that connects adjacent pillars with each other and a tread plate supported at a predetermined height position of each pillar is a horizontal member, a front connecting member, and a rear connecting member. A wedge connection that detachably connects each member of the horizontal member, the front connection member, and the rear connection member to the column through the wedge connection between the wedge body provided on each member and the wedge receiver provided on the column. A method for assembling and dismantling a scaffold that is a formula and is configured by arranging a plurality of scaffold units,
Using a connecting body that has a plurality of engagement holes that can be engaged with each wedge receiver provided in each of the columns that are adjacent in the left-right direction of the scaffolding unit, and that allows the columns to be connected to each other,
A state in which the pillars adjacent to each other at a part in the left-right direction of the scaffolding unit are connected by one connecting body, and the pillars adjacent to each other at another part in the left-right direction are connected by another connecting body. , suspending means attached to one of the adjacent pillars or the one connecting body at the above-mentioned part in the left-right direction, and one of the adjacent pillars at the above-mentioned other part in the left-right direction or the above-mentioned other A method for assembling and dismantling a scaffolding comprising a step of lifting or lowering the scaffolding unit via another hanging means attached to one connecting body.

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