JP2000054618A - Connected structure of girder in suspended scaffold and pressed-support structure of erected scaffold board and scaffold board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the connected structure of a girder in a suspended scaffold for mutually certainly connecting the girders in a simple structure; the pressed- support structure of a erected scaffold board for certainly pressedly supporting the erected scaffold and preventing floating during nonuse and a scaffold board for a suspended scaffold for erecting the scaffold board extremely safe and easy in handling erection and demolition. SOLUTION: The connected structure of a girder 4 is composed so as to attach a connecting member 9 to the girder 4 with one adjusting bolt 13 and to expand it. In the pressed-support structure of an erected scaffold board 26, the girder 4 is connectably provided with a pressing metal fitting 22 through fastening members 23, 24 and provided with a locking member 25 to lock the pressing metal fitting 22 in a fixed direction. In a scaffold board for suspended scaffold 26, both its ends are protrusively provided with a guide piece 28 to cross a locking piece 27 at right angles, and the upside of the scaffold board 26 is provided with a roughly downward U-shaped handle 29 through a pair of attaching holes 30 on both its sides.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting structure for a girder member in a suspension scaffold, a pressing support structure for an installed scaffold, and a scaffold.

[0002]

2. Description of the Related Art Conventionally, a suspension scaffold has been generally used for construction work of a bridge, a highway, a building, or the like, or repair work thereof. As such a suspension scaffold, the suspension scaffold proposed by the present inventors, that is, a girder with a required length of a locking groove which can be freely suspended via a suspension member on a required support material such as a bridge girder. Material, a connecting member for connecting the girder members along the longitudinal direction thereof, and a square scaffold plate having respective hooking pieces at both ends to be hung on the girder material and installed. In addition to suspending the girder material in parallel with the supporting material via the suspending member while connecting the girder material with the connecting member, and laying the scaffolding board via the hanging piece sequentially between the adjacent girder materials and laying down. What is constructed is known (see Japanese Patent Application No. 9-290383).

[0003]

However, the conventional example configured as described above has the following problems. That is, first, the connection of the girder material is performed by attaching a split-shaped connecting member with an adjustable bolt, which is freely expandable to one of the girder materials, via a mounting bolt and engaging with the other girder material. A fitting portion provided with a mating pin is formed, and the outer end of the connecting member is fitted into the fitting portion, and the connecting member is expanded by an adjustment bolt to press-contact in a projecting manner and engage the engaging pin. And link them. For this reason, the connection of such girder members can be surely performed, but the connecting member is attached with the mounting bolts and the opening operation is performed with the adjusting bolts, so that the structure is complicated and the production thereof is troublesome. In addition, there is a possibility that the adjusting bolt may fall off during transportation or the like in some cases. Secondly, the scaffolding plates erected on the girder members are to be pressed and supported by holding members, respectively. However, such holding members are merely fastened by fastening members, and the scaffolding plates are provided. It is easy to move due to an external force acting upon pressing and supporting, and it is easy to lose its original function. Moreover, it is easy to move even when it is not used, and it is easy to cause inconvenience at the time of erection work or storage. Third, the scaffold plate has a rectangular shape, and only has hook pieces formed at both ends thereof. For this reason, when the scaffolding plate is installed between the girder members under the suspended state, both ends of the scaffolding plate are hung between the adjacent girder members, and at the same time, the latching pieces are hooked into the locking grooves while being tilted gradually. It must be stopped, and the erection work must always be performed under extremely unstable mounting conditions, and in some cases, the girder rocks and comes off during the erection work, and the scaffold plate falls And so on. Fourth, since the scaffolding plate is merely formed in a square shape, it is necessary to work with each end at the time of erection work and dismantling work, and the handling is extremely inconvenient. .

The present invention solves the problems of the conventional example at a glance. The connecting member is mounted and expanded by one adjusting bolt, so that the girder members can be connected securely and firmly. Connection structure of girder materials in hanging scaffolding Not only can the installed scaffolding plate be reliably pressed and supported at all times, but also prevents floating when not in use and is convenient for storage, etc. An object of the present invention is to provide a scaffold plate for a suspended scaffold which allows the scaffold plate to be extremely safely erected and is easy to handle during the erection work and the demolition work.

[0005]

Means for Solving the Problems That is, Claim 1 of the present application
In the invention according to the present invention, fitting portions 7 are formed opposite to each other at connecting ends of the girder members 4 so as to connect the girder members 4 for supporting and suspending the scaffold plate 26 for hanging scaffolds. One end of a split connecting member 9 is fitted to one side of the connecting member 7, and the connecting member 9 is made openable and expandable by an adjustment bolt 13 which is inserted and locked from outside to the fitting portion 7. At the same time, an engagement hole 18 is formed at one outer end of the connecting member 9, and a pin hole 19 is formed at the other fitting portion 7 so as to correspond to the engagement hole 18. The gist of the present invention is a connection structure of a girder member in a suspension scaffold, characterized in that an engagement pin 20 is additionally provided to engage with the engagement hole 18 through the pin hole 19. And the connecting structure of the girder member in the hanging scaffold according to the present invention is such that the connecting member 9 can be attached and expanded by the adjusting bolt 13, and the other girder to which the connecting member 9 is to be connected. The connecting member 9 is fitted to the fitting portion 7 of the material 4 and the adjusting bolt 13 is used.
Is expanded and pressed into the fitting portion 7 in a protruding manner, and the engaging pin 20 is engaged with the engaging hole 18 through the pin hole 19, so that the beam member 4 is firmly and securely and securely. Can be linked.

[0006] The invention according to claim 2 of the present application is to hold a scaffold plate 26 between the beam members 4 suspended in parallel at a predetermined interval so as to press and support each of the beam members 4. 22
Are provided so as to be freely fastened via fastening members 23 and 24, and a hooking member 25 for hooking the presser fitting 22 in a predetermined direction is provided. Sometimes it is configured to be hooked and supported in an overlapping manner along the longitudinal direction of the girder member 4 and to be hooked and supported orthogonally when used.
The gist of the present invention is a structure for supporting a suspended scaffold plate in a suspended scaffold. And, the pressing and supporting structure of the erected scaffold plate according to the present invention includes the holding member 22 and the fastening member 2 which is orthogonal to the beam member 4.
In addition to being fastened with 3.24, it can be hung on a hooking member 25 to prevent its movement, and can securely press and support the scaffolding plate 26 that has been erected, and can also hold down a holding bracket even when not in use. 22 can be overlapped along the longitudinal direction of the girder member 4 and can be hooked on the hooking member 25, so that the floating can be reliably prevented.

[0007] The invention according to claim 3 of the present application is directed to a rectangular shape which can be erected via a hooking piece 27 between spar members 4 with hang- ing grooves 6 suspended in parallel at a predetermined interval. And a guide piece 28 is provided at each end of the scaffold plate 26 so as to be substantially orthogonal to the hooking piece 27,
A scaffold plate for a suspended scaffold characterized in that the guide piece 28 is configured to be tilted and erected while each of the guide pieces 28 is hung in the engaging groove 6 of the adjacent girder member 4. Things. And the scaffold plate 2 for a suspended scaffold according to the present invention.
6 is that the guide pieces 28 at both ends are respectively supported by the hanging grooves 6 of the adjacent beam members 4 so as to be mounted and supported, and gradually tilted so that the hanging pieces 27 are engaged with the hanging grooves 6. Thus, the work for erection of the scaffold plate 26 can be performed safely and reliably.

According to a fourth aspect of the present invention, there is provided a scaffolding plate 26 for a rectangular suspended scaffold which can be erected between beam members 4 suspended in parallel at a predetermined interval. 2
The present invention is characterized in that a handle 29 for a suspended scaffold is characterized in that a handle 29 having a substantially downward U-shape is provided on the upper surface of the base 6 through a pair of mounting holes 30 on both sides. And
Since the scaffold plate 26 for a suspended scaffold according to the present invention can freely handle the scaffold plate 26 via the handle 29, the work of erection and disassembly thereof can be performed extremely easily.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to an embodiment shown in the drawings. Reference numeral 1 denotes a support member made of structural steel having a required length and arranged in parallel at a predetermined interval, and the support member 1 uses a girder forming a bridge, an expressway, or the like. Reference numeral 2 denotes a suspending member made of a required length chain or the like which can be freely attached to each of the supporting members 1 via a clamp 3. Reference numeral 4 denotes a lower portion of the supporting member 1 along the longitudinal direction of the supporting member 1 by the suspending member 2. A girder member of a required length that can be hung freely on the same level, 5 is a base member having a U-shape with a downward cross section constituting the girder member 4, and 6 is formed by bending both sides of the base member 5 along the longitudinal direction thereof. It is a pair of substantially U-shaped engaging grooves on both sides.

Reference numeral 7 denotes a substantially rectangular fitting portion which is formed at both ends of the base member 5 through partition plates 8. A substantially half portion 9 is movably fitted to one of the fitting portions 7. The combined split connecting member 10 is a nut fixed to one of the connecting members 9 via a communication hole 11, 12 is an insertion hole formed on the other side to correspond to the nut 10, 13 Is a stepped adjusting bolt inserted into the fitting portion 7 from above the base 5 through the mounting holes 14 and 15, and the adjusting bolt 13 is
Are screwed into the nut 10, the pin-shaped shaft 17 at the tip is inserted into the insertion hole 12, and is screwed through the nut 10 to cause the connecting member 9 to expand. I have. Reference numeral 18 denotes a slot-shaped engaging hole formed at one outer end of the connecting member 9, and 19 denotes the engaging hole 18.
A pin hole formed in the top wall of the other fitting portion 7 to correspond to
Reference numeral 20 denotes a substantially 7-shaped engaging pin provided to engage with the engaging hole 18 of the connecting member 9 through the pin hole 19.
The tip of the engagement pin 20 is constantly urged toward the pin hole 19 via a spring material 21.

Numeral 22 is a downwardly-U-shaped holding metal fitting having a downward cross-section, which is attached to the base member 5 of the beam member 4 via bolts 23 and nuts 24 so as to be capable of supporting and pressing a scaffold plate 26 to be described later. Is a hooking member formed adjacent to the holding member 22. The holding member 25 is formed to be orthogonal to the girder member 4 and has an inner width and an inner width to be fitted and held in the holding member 22. They are formed to have substantially the same width. And
When pressing and supporting the erected scaffold plate 26,
Hold the holding member 22 perpendicular to the girder member 4 with the bolt 23 and nut 2
4 and is hung on a hook member 25 to prevent its movement. When not in use, the holding member 22 is overlapped with the girder member 4 in the same direction. To prevent the floating movement.

Reference numeral 26 denotes a metal scaffold plate formed in an elongated rectangular shape so as to be erected on the suspended girder member 4, and 27 denotes a scaffold plate 26 for fitting into and engaging with the locking groove 6 of the girder member 4. Each of the hanging pieces 27 is formed in a substantially tapered cylindrical shape, and corresponds to the vertical direction when the scaffolding plates 26 are stacked and transported or stored. The latching pieces 27 can be fitted together to make the stacked load compact and stable. 2
Numeral 8 is a guide piece projecting from each of the four corners of the scaffold plate 26 in the transverse direction of the scaffold plate 26 so as to be orthogonal to the hooking piece 27. It is designed to be fitted and latched in the latching groove 6 when it is set up and mounted on the vehicle.

Numerals 29 are generally downwardly U-shaped handles which are attached to both ends of the scaffolding plate 26 through a pair of attachment holes 30 on both sides so as to be able to come and go.

The embodiment configured as described above is
A clamp 3 is attached to the lower edge of each support 1 along the longitudinal direction.
, The hanging members 2 are sequentially attached, and the beam members 4 are hung at the same level by the hanging members 2 (see FIG. 1). At this time, the presser fitting 22 is superimposed on the upper surface of the girder member 4 along the longitudinal direction thereof, and is fitted and latched on the latch member 25.
The looseness is prevented by the bolts 23 and the nuts 24 (see FIG. 5). Thereafter, the connecting member 9 is fitted into the corresponding fitting portion 7, and the connecting member 9 is expanded by the screwing of the adjustment bolt 13, so that the connecting member 9 is pressed into the fitting portion 7 in a projecting manner, and the pin hole is formed. The engaging pin 20 is engaged with the engaging hole 18 through 19 to connect the beam members 4 adjacent to each other along the longitudinal direction linearly (see FIGS. 3 and 4). At this time, the connection between the beam members 4 is, as described above,
The connecting member 9 is fitted to the corresponding fitting portion 7 to adjust the adjustment bolt 1
3 is used to perform the expanding operation, press-contact in a projecting manner, and lock with the engaging pin 20.
It is possible to securely and firmly connect each other without rattling.

Next, while holding and supporting the grip 29,
The scaffolding plate 26 is erected laterally to be mounted between the adjacent beam members 4, and the guide piece 28 is locked in the locking groove 6 (see FIGS. 6 and 7). Then, while gradually tilting the scaffold plate 26 with the hooked guide piece 28 as a fulcrum, the hook piece 27 is hooked on the corresponding hook groove 6, and the scaffold board 26 is erected between the adjacent beam members 4 ( 6 and 8 to 1
0). At this time, since the scaffolding plate 26 is erected via the handle 29, the erection work can be easily performed. In addition, the guide piece 28 is hung in the hanger groove 6 and Because of the mounting, the erection work can be performed safely without an unexpected accident such as dropping of the scaffold plate 26.

When the installation of the scaffold plate 26 is completed, the bolt 2
3 to release the presser fitting 22 from the hanging member 25, and to move the holding member 22 in a direction orthogonal to the girder member 4, and to abut on the hanging member 25 to be hung while holding the girder member 4 therebetween. 26
Are tightened by bolts 23 and nuts 24 to be pressed and supported (see FIGS. 1 and 5). At this time, since the presser fitting 22 is prevented from moving by the locking member 25,
The scaffold plate 26 can always be reliably pressed and supported.

In the following, the scaffolding plates 26 are laid not only in parallel but also in series between the adjacent beam members 4 with the erected scaffolding plates 26 as a center, and paved to construct a suspended scaffold (FIG. 1).
And FIG. 2).

In the above-described embodiment, the engaging pin 20 of the connecting member 9 has a substantially seven-letter shape, but the present invention is not limited to this, and another known one such as a rod-shaped pin is adopted and used. Can do that. In addition, the presser fitting 22
Of the holding member 2 is orthogonal to the beam member 4 and
2 is formed to have the same width as the inner width thereof so as to be fitted into the hook 2. However, the present invention is not limited to this. One piece of girder 4
It may be formed orthogonal to the above, or may be formed with four protrusions or the like. Furthermore, the scaffold plate 26 can be applied not only to the hanging scaffolding girder 4 with the locking groove 6 but also to a required hanging scaffolding girder such as a single pipe.

[0019]

Since the invention according to claim 1 of the present application is constructed as described above, it does not require mounting bolts and adjusting bolts as in the conventional example, but can be achieved by simply using one adjusting bolt 13. The connecting member 9 can be mounted and expanded. The structure of the connecting member 9 is simple and the manufacturing thereof can be easily performed. The connecting member 9 is fitted to the fitting portion 7 of the beam member 4 and the adjusting bolt 13 is used.
Is expanded and pressed into the fitting portion 7 in a projecting manner, and the engaging pin 20 is engaged with the engaging hole 18 through the pin hole 19, thereby securely and securely connecting the girder member 4. It can be done.

Since the invention according to claim 2 of the present application is configured as described above, the holding member 22 is fastened by the fastening members 23 and 24 in a direction orthogonal to the beam member 4, and It is possible to prevent the movable scaffold plate 26 from being moved by being hooked and securely press and support the erected scaffold plate 26, and also to hold the presser fitting 22 along the longitudinal direction of the girder member 4 when not in use. The hook member 25 can be hooked on the hook member 25 to reliably prevent its play.

Since the invention according to claim 3 of the present application is constructed as described above, the guide pieces 28 at both ends are respectively supported by the retaining grooves 6 of the adjacent beam members 4 by being mounted thereon. While
It can be erected between the girder members 4 by gradually tilting and hooking the latching pieces 27 in the latching grooves 6, so that the work of laying the scaffold plate 26 can be performed safely and securely. It is.

Since the invention according to claim 4 of the present application is configured as described above, the scaffold plate 26 can be freely handled through the handle 29, and the work of erection and dismantling of the scaffold plate 26 can be performed. Or storage work can be performed very easily.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention together with a use state.

FIG. 2 is a plan view showing a state where a scaffold plate 26 is erected.

FIG. 3 is a perspective view showing a connection structure of the beam members 4;

FIG. 4 is a cross-sectional view showing a state where the beam members 4 are connected to each other.

FIG. 5 is a plan view showing a holding member 22.

FIG. 6 is a side view showing a state where the scaffold plate 26 is erected.

FIG. 7 is a cross-sectional view showing a state in which the scaffolding plate 26 is erected between the beam members 4 via a guide piece 28 in an upright state.

FIG. 8 is a cross-sectional view showing a state in which the scaffold plate 26 is laid between the beam members 4 via the guide pieces 28 while being tilted and erected.

FIG. 9 is a partially enlarged plan view showing a state where the scaffold plate 26 is erected.

FIG. 10 is a sectional view taken along line II of FIG. 9;

[Explanation of symbols]

 4 Girder material 6 Hook groove 7 Fitting part 9 Connecting member 13 Adjusting bolt 18 Engagement hole 19 Pin hole 20 Engagement pin 22 Presser fitting 23 Bolt 24 Nut 25 Hook member 26 Scaffold plate 27 Hook piece 28 Guide piece 29 Handle 30 mounting hole

Claims (4)

[Claims] An engaging portion is formed at a connecting end of each of the beam members for hanging scaffolds for supporting and supporting a scaffold plate. 7, one end of a split connecting member 9 is fitted,
The connecting member 9 is made openable by an adjustment bolt 13 inserted and locked from outside to the fitting portion 7, and an engaging hole 18 is formed at one outer end of the connecting member 9. A pin hole 19 is formed in the other fitting portion 7 so as to correspond to the engaging hole 18, and an engaging pin 20 is provided to engage the engaging hole 18 through the pin hole 19. The connection structure of a girder material in a hanging scaffold, characterized by the following. 2. In order to support and press and support a scaffold plate 26 between girders 4 suspended in parallel at a predetermined interval, holding members 22 are attached to the respective girders 4 via fastening members 23 and 24. And a locking member 25 for locking the holding member 22 in a predetermined direction. The holding member 25 is used to hold the holding member 22 when it is not used.
Along the longitudinal direction of
A press-support structure for a suspended scaffold plate in a suspension scaffold, wherein the structure is configured to be hung and supported orthogonally when used. 3. A rectangular scaffolding scaffolding plate 26 which can be erected freely via a hooking piece 27 between spar members 4 with hanging grooves 6 suspended in parallel at predetermined intervals. And the scaffold plate 26
Guide pieces 2 at both ends thereof so as to be substantially orthogonal to the hook pieces 27, respectively.
8 is protruded, and the scaffold plate 26 is tilted and erected while the guide pieces 28 are hung in the engaging grooves 6 of the adjacent girder members 4, respectively. Scaffolding board for scaffold. 4. A rectangular scaffolding plate 26 for hanging scaffolding, which can be erected between beam members 4 suspended in parallel at a predetermined interval, a pair of mountings on both sides of the scaffolding plate 26. A scaffold plate for a suspended scaffold, wherein a handle 29 having a substantially downward U-shape is provided through a hole 30.