JPH0736002Y2 - Scaffolding equipment - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention is a scaffolding device of a suspension scaffolding type used in construction work of a steel frame structure (S structure) or a steel frame reinforced concrete structure (SRC structure) in a middle- or high-rise building. Regarding

[Conventional technology]

There are various types of hanging scaffolds called so-called sky hangers as external scaffolds to be attached to beam steel frames of building frames, etc., but most of them have long rear columns 1 and 1 as shown in Fig. 15. It is fixed to a mounting bracket 2 having a locking claw that rotates with bolts and the like, and is fixed to a beam steel frame 3, and a metal scaffolding plate 4 as a working floor is attached to the lower part of the supporting columns 1 and 1 as a supporting member. The front support columns 5, 5 are established from the front of the front support columns 5, 5, and the upper ends of the front support columns 5, 5 and the upper parts of the rear support columns 1, 1 are connected by slanting members 6, 6 to form a hanging basket.

[Problems to be solved by the device]

However, in the case of a suspension scaffold such as the sky hanger, it is necessary to move from one scaffold to another scaffold only once on the beam 3 from the scaffold. Also, when the building extends upward due to the progress of construction work and scaffolding is changed, it is necessary to remove one by one and reset it again, especially in the steel frame construction that raises several layers at once, The reshuffling must be done many times at a time, which is very troublesome.

Therefore, the pillars 1, 1 and 5, 5 of the scaffold shown in FIG. 15 are made long in the vertical direction, and a plurality of steps of the scaffolding plate 4 are provided at intervals in the vertical direction to form a multi-layered scaffolding device. It is possible.

However, in such a case, the entire size becomes large, and the storage and transportation when not in use is carried out. Posts 1, 1, 5, 5 and scaffolding 4
It is possible to disassemble all of them and divide them into each member,
Then, disassembling and assembling will take time, and member management will be troublesome.

The object of the present invention is to eliminate the inconvenience of the conventional example, and to fix it in a stable and stable state. Various works can be performed simultaneously on the scaffolding, including reinforcing bar, formwork, and concrete work, and the whole is easy with a crane. Since it can be lifted up and down, it can be easily set and removed and can be diverted easily, and it can be made compact by folding it on the ground with one touch, and it is therefore to provide a scaffolding device that is convenient for storage and transportation. .

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the present invention is divided into upper and lower two pieces, and the ends of the two divided pieces are abutted to each other, and the mutual ends of these two pieces are projected to the upper and lower ends on one side. And inserting it into the connecting piece so that the closing part is inside the gap of the connecting piece made of two parallel plate bodies having the closing part formed by bending the inside slightly and forming the vertical adjustment protrusion. The bolt is rotatably inserted with the ring collar interposed between the end of one piece and the connecting piece, and the nut is screwed on the protruding end of the bolt with the washer on the outside of the connecting piece. A split pin that penetrates the bolt in the lateral direction is provided at the projecting end of the bolt to form a suspension supporting member that rotatably connects the two pieces, and the connecting piece of the two pieces of the suspension supporting member is formed. Scaffolding work in which the mutual ends on the opposite side to the insertion side are arranged vertically with pins such as bolts Are rotatably connected to the four corners of each of the above, and pipe-shaped legs are projectingly provided near the suspension struts at the four corners of the lower surface of the scaffolding work floors lined up and down. On the lower scaffolding work floor, a socket is provided on the front side in the longitudinal direction, a gate type handrail is detachably erected through this socket, and a plurality of suspension struts facing each other in the scaffolding work floor width direction are provided. The gist is that they are connected by a horizontal rail.

[Action]

According to the present invention, since the scaffolding work plates are vertically stacked, for example, if the length is enough to cover four floors of a building, the cycle steps of rebar assembly, formwork assembly, concrete placement, and formwork disassembly are It can be covered by using the work floor of each layer.

The suspension stanchion consists of two pieces that are vertically divided and a connecting piece, but the bolts that connect these pieces have ring collars interposed between them, so they can rotate very smoothly with each other and are easy to fold. Becomes

The projecting end of the bolt is screwed with a nut on the outside of the connecting piece with a washer interposed, and a split pin that laterally penetrates the bolt is provided on the projecting end of the bolt outside the nut. It is possible to prevent the nut from coming off and prevent the bolt from coming off.

Further, the connecting piece can prevent the hanging support member composed of two pieces divided by the closing portion from being bent outward, and further, when it is made to stand upright from the bent state, it serves as a guide and always stands up vertically. Further, when the suspension supporting member is in the upright state, it can also function as a reinforcing member against an external force applied to the outside.

In particular, it is necessary to make a slight gap between the closing part provided on one side of the connecting piece and the two pieces so that the two pieces can be smoothly rotated, but the closing part has upper and lower ends. Since the vertical adjustment projection is formed by projecting and bending it slightly inward, the vertical adjustment projection is brought into contact with the two pieces so that the two pieces are tilted when they are in the upright state. It is possible to maintain upright without having to.

In this way, when not in use, the entire suspension can be folded in an accordion style by bending it, and the scaffolding work floors can be stacked vertically to make it compact. Can be expanded.

The pipe-shaped legs projecting near the suspension struts at the four corners of the lower surface of the scaffolding work floor arranged vertically can be used when connecting to the beam steel frame. When the struts are folded, the spacing created by the legs can be used to ensure a space for the hanging struts to fold in between.

On the other hand, since the gate type handrails of the lower scaffolding work floor other than the uppermost scaffolding work floor are erected via sockets, this socket serves as a guide so that it can be easily, quickly and surely installed. The strength of the mounting portion can be increased.

Further, since the facing suspension struts are connected by the cross rails on the surface other than the front side in the longitudinal direction of the scaffolding work floor where the gate type handrail is provided, that is, the cross rail is used as a substitute for the handrail. Can be

In this way, using a horizontal crosspiece that must be controlled at both ends and fitted in place on the narrow side of the scaffolding work floor,
In the case of the front of the scaffolding work floor in the longitudinal direction, the width is wide,
Since it is difficult to apply a horizontal crosspiece that requires control of both ends, a gate-type handrail that can be inserted and removed vertically with a socket was adopted to simplify installation and removal.

〔Example〕

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a front view showing a first embodiment of the scaffolding device of the present invention,
Fig. 2 is a side view of the same, in which 7a is a work platform for the scaffolding at the uppermost stage, which is constructed by stretching a metal plate on a metal frame body, and a gate-shaped handrail 8 on the front side in the longitudinal direction and on three sides on both sides. , 9 was launched. Further, as shown in FIG. 3, the work floor 7a forms a hatch 10 through which workers can move in and out, for example, in the center.

Hanging scaffolds 11 for connecting the corners of the scaffolding work floors 7b of the same size to the scaffolding work floors 7a of the uppermost stage are mutually connected.
In this way, the scaffolding work floors 7b to 7n _-1 on the lower floors are suspended and supported on the scaffolding work floor 7b, and the scaffolding work floors 7b to 7 , 7n are sequentially hung and supported to form a multi-layered scaffold.

Scaffolding work floors 7b in the lower tier other than these uppermost scaffolding work floors 7a
The hatches 10 to 7n _-1 and 7n are similarly formed, but the position of the hatch 10 is as shown in FIG. 4 on the scaffolding work floor immediately below the scaffolding work floor provided in the center as shown in FIG. Should be placed close to one side, and the scaffolding work floor immediately below it should also be placed in the center so that they do not line up in the same position in a zigzag manner.

Further, pipe-shaped legs 25 are provided so as to project from the four corners of the lower surface of the scaffolding work floors 7a to 7n _-1 , 7n.

The suspension support member 11 that connects the scaffolding work floors 7a to 7n _-1 and 7n to each other is
The upper and lower ends thereof are pin-connected to the work floors 7a to 7n _-1 and 7n with bolts or the like so as to be rotatable, and further, the entire suspension support member 11 is divided into upper and lower two pieces 11a and 11b, and their mutual ends are formed. Were joined by a connecting piece 11c.

The connecting piece 11c is formed by two parallel plate bodies closed on one side, and the ends of the pieces 11a and 11b enter the gap and are fixed with bolts 12 as shown in FIGS. 5 and 6.

Further, as described in detail, as shown in FIG. 9, a hexagonal bolt is used as the bolt 12, a washer 13 is interposed on the outer side of the connecting piece 11c, and a hexagonal nut 14 is screwed. A split pin 15 is provided to laterally penetrate the bolt 12 so as not to come off. In addition, the ring collar 1 is provided at the penetrating portion of the bolt 12 of the connecting piece 11c and the piece 11a or 11b.
By interposing 6, the connecting piece 11c and the piece 11a or 11b can be smoothly rotated with respect to each other.

In addition, the one-side closed point of the connecting piece 11c is to the side where this is 11a, 1
The ring fitting 17 is configured to prevent the 1b from going around, and the upper and lower ends thereof are projected and bent slightly inward to form a vertical adjustment projection 17a.

Further, in the width direction of the scaffolding work floors 7b to 7n _-1 and 7n, the pieces 11a and 11b of the suspension supporting member 11 that are opposed to each other are connected by a plurality of horizontal bars 18 (two in the figure). Moreover, the pipe-shaped socket 1 is provided on the front side in the longitudinal direction of the scaffolding work floors 7b to 7n _-1 , 7n.
A gate-shaped handrail 20 similar to the handrail 8 is detachably set up via 9 through.

Then, between the upper and lower scaffolding work floors, the positions of the hatches 10 on the upper and lower scaffolding work floors are matched with each other, and the turret 21 is detachably hung by bolting the end portion thereof.

Reference numeral 22 in the drawing denotes a bracket which is attached to the beam steel frame 3 and protrudes forward. An angle member is provided on the upper surface of the parallel support member 22a as shown in FIGS. The flanges 22b and 22b 'formed with the above are spaced apart from each other by the width of the scaffolding work floor 7a to stand up, and the lower portion of the support member 22a is provided with a truss member 22c having a right-angled triangle shape whose tip is a corner. A lower corner portion of the truss member 22c is slightly extended rearward in the horizontal direction, a screw hole is formed by a nut 23 therein, and a horizontal length adjusting bolt 24 is screwed into the screw hole.

Next, the usage will be described.

As shown in FIG. 2, the bracket 22 is fixed to the beam steel frame 3 and protrudes horizontally. In this case, the rear end of the support member 22a is placed on the upper flange of the beam steel frame 3 via a metal fitting for mounting a PC fastener. Fix it securely with bolts and extend the bolts 24 as appropriate to abut the web.

As mentioned above, the scaffolding work floors 7a to 7n _-1 and 7n via the suspension supporting members 11
The entire scaffold with the above layers is hung by a crane or the like using the hooks provided on the uppermost scaffolding work floor 7a, and the uppermost scaffolding work floor 7a is placed between the flanges 22b and 22b 'of the bracket 22 to form a long hole. The lower surface of the work floor 7a is supported from the left and right by this bracket 22 by bolting using 27.

As for the suspension supporting member 11, the divided pieces 11a and 11b are shown in FIGS.
As shown in the figure, it extends straightly, and an appropriate one is selected from among the scaffolding work floors 7b to 7n on the lower floor, and the leg 25 is used to connect the beam steel frame 3 to the joint 26.

This completes the setting of the scaffolding equipment, and each scaffolding work floor 7a ~
Since 7 _n-1 and 7 _n are open on the rear surface side in the longitudinal direction, that is, on the side of the building body without handrails, workers perform various works on this work floor.

In addition, the vertical movement between the work floors is performed by opening and closing the hatch 10 by using the ramp 21.

Next, in order to convert the scaffolding, the connection 26 is removed, and if the uppermost scaffolding work floor 7a is lifted by a crane, it is removed from the bracket 22 and the whole is lifted, so for example, to another bracket 22 on the upper floor. Redo and reconnect 26
Please retake.

On the other hand, in order to unload and store it on the ground, the turret 21 is removed, and further, the handrail 20 standing on the scaffolding work floors 7b to 7n _-1 , 7n on the lower floor is pulled out from the socket 19 and removed.

After this, the suspension supporting member 11 is bent in a V shape at this portion so that the connecting piece 11c of the suspension supporting member 11 moves inward.
As a result, as shown in FIG. 12, the whole is folded up and down in an accordion manner, and finally, as shown in FIG. 13, the scaffolding work floors 7a to 7 _n-1 and 7 _n are separated by the space between the legs 25. It overlaps and is folded small in the whole. The interval between the legs 25 is to secure a space in which the suspension supporting member 11 is folded and enters.

By the way, the upper and lower sides of the suspension supporting member 11 can be freely connected to the upper and lower sides of the scaffolding work floor by bolts or the like, and thereby the number of scaffolding work floors on the lower floor can be freely set. In addition, the suspension support 11
Since there is a ring bracket 17 on the connecting piece 11c, there is no refraction such as traveling to the outside, and when it is extended, the piece 11c
The a and 11b are aligned by contacting the vertical adjustment protrusion 17a.

[Effect of device]

As described above, in the scaffolding device of the present invention, since the scaffolding work floors are vertically stacked, for example, if the length is enough to cover four floors of a building, reinforcing bar assembly, formwork assembly, concrete placement, formwork The dismantling cycle process can be covered by using the work floor of each layer, and a plurality of these processes can be performed at the same time, which can shorten the construction time.

The suspension supporting member is composed of two pieces, which are vertically divided, and a connecting piece. Since the bolts that connect these pieces have ring collars, they can be rotated very smoothly and folded. It is easy, and the measures for preventing the bolts connecting them from coming off are also taken.

Further, the connecting piece can prevent the hanging support member composed of two pieces divided by the closing portion from being bent outward, and further, when it is made to stand upright from the bent state, it serves as a guide and always stands up vertically. In addition, when the suspension supporting member is in the upright state, it can also function as a reinforcing member against an external force applied to the outside.

In this way, when not in use, the entire suspension can be folded in an accordion style by bending the suspension struts, and the scaffolding work floors can be stacked vertically to make it compact, and it does not interfere with the removal, and in the case of re-setting. Also, since the suspension struts can be stretched and unfolded easily, this can be done easily and quickly.

The pipe-shaped legs projecting near the suspension struts at the four corners of the lower surface of the scaffolding work floor that are lined up and down can be used when connecting to the beam steel frame and can be used safely. In addition, the space created by this leg can be used to secure a space for the suspension struts to fold in when folding the suspension struts, and to make it compact and easy to store when removed. It contributes to the prevention of damage.

On the other hand, since the gate type handrails of the lower scaffolding work floor other than the uppermost scaffolding work floor are erected via sockets, this socket serves as a guide so that it can be easily, quickly and surely installed. The strength of the mounting portion can be increased.

Further, since the facing suspension struts are connected by the cross rails on the surface other than the front side in the longitudinal direction of the scaffolding work floor where the gate type handrail is provided, that is, the cross rail is used as a substitute for the handrail. As a result, quick installation and removal can be realized.

In this way, using a horizontal crosspiece that must be controlled at both ends and fitted in place on the narrow side of the scaffolding work floor,
In the case of the front of the scaffolding work floor in the longitudinal direction, the width is wide,
Since it is difficult to apply a horizontal crosspiece that requires control of both ends, a gate-type handrail that can be moved in and out by a socket is used to simplify installation and removal.

[Brief description of drawings]

FIG. 1 is a partially omitted front view showing a first embodiment of the scaffolding device of the present invention, FIG. 2 is a side view of the same, FIG. 3 and FIG. 4 are plan views of a scaffolding work floor, and FIG. Is a front view of the suspension struts in a stretched state, FIG. 6 is a side view of the same as above, FIG. 7 is a front view of the same in a bent state, FIG. 8 is a side view of the same, and FIG. Same as above, partially cutaway side view, FIG. 10 is a front view of the bracket, FIG. 11 is a plan view of the same, FIG. 12 is a side view of the same, FIG. 13 and FIG. 14 are explanations showing a folding process. FIG. 15 is a perspective view showing a conventional example. 1 ... Post, 2 ... Mounting bracket 3 ... Beam steel frame, 4 ... Scaffolding plate 5 ... Front strut, 6 ... Slanting member 7a-7n ... Scaffolding work floor, 8,9 ... Handrail 10 ... Hatch, 11 …… Suspension support 11a, 11b …… One piece, 11c …… Connecting piece 12 …… Bolt, 13 …… Washer 14 …… Nut, 17 …… Split pin 16 …… Ring collar, 17 …… Ring Bracket 17a …… Protrusion for vertical adjustment, 18 …… Horizontal bar 19 …… Socket, 20 …… Handrail 21 …… Trap, 22 …… Bracket 22a …… Supporting member, 22b, 22b ′ …… Flange 22c …… Truss Parts, 23 ... Nuts 24 ... Length adjustment bolts, 25 ... Legs 26 ... Connections, 27 ... Oblong holes

Front page continuation (72) Inventor Seiji Kato 1-3-4 Bandai, Niigata City, Niigata Prefecture Hokuriku Branch (72) Inventor Yoshiken Imamura 1-3-4 Bandai, Niigata City, Niigata Prefecture Kashima Construction Co., Ltd. Formula company Hokuriku Branch (72) Inventor Masaru Okada 3-16-8-1002 Shirokanedai, Minato-ku, Tokyo (72) Inventor Kazuo Takaishi 1-33-30 (56) Asaya Minami, Suginami-ku, Tokyo (56) References 58-95445 (JP, U) Actually opened 60-177248 (JP, U) Actually opened 60-82045 (JP, U)

Claims (1)

[Scope of utility model registration request] 1. The upper and lower parts are divided into two pieces, and the ends of the divided two pieces are abutted to each other, and
The mutual end of the two pieces has a closed portion in which the upper and lower ends project to one side and are bent slightly inward to form a vertical adjustment protrusion.
Inserted into the gap between the connecting pieces made of parallel plates so that the closing part is on the inner side, and inserting the ring collar between the ends of the two pieces inserted into the connecting pieces and turning the bolt. A nut is threaded through the washer on the protruding end of the bolt on the outside of the connecting piece, and a split pin is provided on the protruding end of the bolt on the outside of the nut. Forming a suspension support member that rotatably connects the two pieces, and the mutual ends of the suspension support member on the side opposite to the side to be inserted into the connecting piece of the two pieces are arranged vertically with pins such as bolts. The scaffolding work floors are rotatably connected to the four corners respectively, and pipe-shaped legs are projected near the suspension struts at the four lower corners of the scaffolding work floors that are vertically arranged. On the lower scaffolding work floor other than the work floor, a socket is provided on the front side in the longitudinal direction, and the socket is The gate-shaped handrail freely upright detachable Te, also, scaffold, characterized in that the concatenation of hanging struts facing in the scaffold working floor width direction rungs of a plurality of stages.