JPH08333884A - Structure of connecting board for jumping scaffolding in building construction - Google Patents

Abstract

PURPOSE: To execute works simply and efficiently for installing a connecting board that connects scaffold boards of adjacent scaffold frameworks and for removing the connecting board on occasion of Jumping. CONSTITUTION: In a jumping scaffolding that is used in building construction and formed of a scaffold framework built up by installing scaffold boards 2 horizontally in a plurality of tiers to a latticed frame body constructed of vertical and horizontal poles and installed in the form of suspended shelves to the external wall of a building under construction and furthermore moved upward entirely as the construction work progresses, a connecting board 15 is fixed with a hinge 16 either to the end of the scaffold board 2 on each of tiers or a breadthwise bar 1c supporting the end of the scaffold board. The connecting board 15 is so constructed that can be swung upward from a position approximately horizontal to a position approximately upright, or a position tilting at an acute angle. The connecting boards 15 installed in tiers are connected with a vertical wire rope 17 so that they can be moved in interlocking, being in parallel with one another.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jumping scaffold for building construction in which a scaffolding frame is installed in a hanging shelf type so that it can be easily moved up and down along the outer wall of a building, and more particularly, between scaffolding frames installed adjacent to each other. It relates to a mechanism that hangs a crossing board.

[0002]

2. Description of the Related Art As shown in, for example, Japanese Patent Publication No. 6-8572, the following jumping scaffold for building construction work is known. This kind of jumping scaffolding
Instead of installing the ground as a support base, it is installed on the outer wall of the building under construction in a hanging shelf type and moved upwards in a timely manner, and the tower crane is used for the moving work (called jumping or refilling). It has the feature that it does not use a large lifting machine such as.

That is, a large number of rods such as steel pipes, mountain steels, and grooved steels are vertically and horizontally connected to form a lattice-shaped frame body, and a plurality of stages of scaffolding plates are horizontally attached to this to form a scaffolding framework. ing. The overall height of this scaffolding frame is several floors of the building, and the metal fittings are attached to the middle part and near the lower end, respectively. On the other hand, anchor bolts are embedded in the outer wall portion of the building under construction at appropriate intervals, and anchor metal fittings to be coupled with the locking metal fittings are attached to the anchor bolts at predetermined positions.

Then, by hooking the metal fittings near the middle portion and the lower end of the scaffolding framework to the anchor metal fittings on the outer wall of the building, the entire weight of the scaffolding framework is supported by the anchor metal fittings.
A scaffolding frame will be installed on the side of the building in a hanging shelf style. When the anchor metal fitting at the middle part of the scaffolding frame is hooked on the anchor metal fitting at the top of the outer wall of the building, the upper part of the scaffolding framework projects above the top of the building under construction. Using this scaffolding framework, proceed with construction work on the upper part of the building (attach anchor metal fittings to the outer wall of the part constructed by the construction work).

If a new upper part of the building is constructed by the above construction, the entire scaffolding frame is pulled up from the top of the new part using a chain block or the like, and the locking metal fittings in the middle part of the scaffolding frame are added to the new building part. Hook it on the newly installed anchor metal. With this, the upper part of the scaffolding frame is in the same state as above, in which the upper part of the scaffolding frame projects further above the new building portion, and the construction work of the upper part of the building is carried out using this scaffolding.
In this way, the entire scaffolding framework is moved upward as the construction progresses.

Further, the conventional jumping scaffold for building construction supports the whole as a hanging shelf type by hooking the locking metal fittings provided on the scaffolding framework to the anchor metal fittings protruding from the outer wall of the building. As a concrete structure of the supporting portion, a hook-shaped locking metal fitting is fixed at a predetermined position of the inner vertical bar on the side closer to the outer wall of the building in the lattice-shaped frame body composed of vertical and horizontal bars. It has a structure that supports the weight of the scaffolding frame with fasteners.

In this type of jumping scaffolding for building construction work, instead of installing one large scaffolding framework over the full width of the building, a plurality of small and lightweight scaffolding frameworks are installed side by side. Is normal. It is easier to move the scaffolding framework.

When a plurality of scaffolding frameworks are installed side by side in the lateral direction, some gaps are provided between adjacent scaffolding frameworks in order to avoid interference with each other. Workers climb into the installed scaffolding framework and walk around on the scaffolding board to perform various tasks. Of course, they often move to the next scaffolding framework. For this reason, a crossover plate is spanned almost horizontally in the gap between the scaffolding plates of adjacent scaffolding frames, and a plurality of scaffolding plates form a working passage that is continuous in the longitudinal direction.

In the lattice-shaped frame body of the scaffolding frame, the inner vertical bar members and the outer vertical bar members are arranged in parallel with each other with an interval corresponding to the width of the scaffold plate, and the two vertical bar members are horizontal. It is connected with a short width bar. In addition, two inner vertical bar members with a relatively large gap are connected by a long inner horizontal bar member, and similarly two outer vertical bar members are connected by a long outer horizontal bar member, resulting in a flat shape as a whole. It has a rectangular parallelepiped shape. Here, a member close to the outer wall surface of the building is called an inner bar, and a member facing the outside is called an outer bar.

[0010]

In the same scaffolding framework, each scaffolding plate is mounted by being stretched between the width rod members of the lattice-shaped frame body. Similarly, the above-mentioned connecting plate that connects the space portions of the scaffolding plates of the scaffolding frames that are installed adjacent to each other is attached between the width bar members facing each other of the lattice-like frame bodies of the two scaffolding frames. .

The method of installing the transition plate is structurally simple. However, when moving each scaffolding framework as the construction progresses, first remove all the crossing boards that have been bridged, then move each scaffolding framework upward and fix it, and then re-stretch the crossing boards to attach them. It was necessary and laborious. The scaffolding framework usually has 5 to 10 steps of scaffolding boards, and it takes a lot of manpower and time to remove the crossing boards for each step and lay them again, which makes the jumping workability poor.

The present invention has been made in view of the above-mentioned problems of the prior art, and its purpose is to install a cross plate to connect between the market plates of adjacent scaffold frames and to remove the cross plate during jumping. It is to provide a jumper scaffolding mechanism for a jumping scaffold for building construction work that can be easily and efficiently performed.

[0013]

In view of the above, according to the present invention, a scaffolding frame, in which a plurality of steps of scaffolding plates are horizontally attached to a lattice-shaped frame body composed of vertical and horizontal bars, is hung on the outer wall surface of a building under construction. In the jumping scaffolding for building construction of a system that is installed in a shelf type and moves the entire scaffolding framework upwards as the construction progresses, in the building construction work jumping scaffolding, the end of the scaffolding plate at each stage or the lattice shape supporting the end A cross plate is attached to the width bar of the frame by a hinge structure, and this cross plate is rotated upward from a substantially horizontal posture so that the cross plate can be displaced to a substantially vertical or obtuse angle posture. In this state, a crossing plate mechanism is provided that is interlockingly connected by a wire rope that connects vertically.

In addition to the above construction, preferably, the pulley provided at the upper portion of the scaffolding frame is hung around the upper side of the wire rope and tied to the winder provided at the intermediate portion of the scaffolding frame.

[0015]

When the wire rope is pulled upward, the transition plates of each step are interlocked and pivoted upward about the respective hinges to be in a substantially vertical or obtuse posture. In this state, the crossing boards are close to the scaffolding framework, and there is almost no protrusion. Therefore, when the scaffolding framework is jumped upward, it does not interfere with the adjacent scaffolding framework.

When two adjacent scaffolding frameworks are jumped upward and fixed, and then the wire rope is lowered, the crossing plates of each stage are interlocked, and each of the crossing plates is pivoted downward about the hinge to be substantially horizontal. The posture is such that its tip side overlaps the edge of the adjacent scaffold plate. This means that the market boards of adjacent scaffolding frames are connected by the crossing boards.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An overall construction of an embodiment of a jumping scaffold for building construction to which the present invention is applied is shown in FIG. 1, details of a supporting mechanism of a scaffolding frame are shown in FIG. Details of the transition plate mechanism are shown in FIGS. 3 and 4. In FIG. 1, A shows a building under construction, A (i) is the slab of the i-th floor, and A (i-1) is the slab of the floor below it. B refers to the entire scaffolding framework. The scaffolding framework B includes a grid-like frame body 1 composed of vertical and horizontal bars, and a scaffolding board 2 having a plurality of stages.
Is installed horizontally and is installed on the outer wall 3 of the building A in a hanging shelf type by the following support mechanism.

In the lattice-shaped frame body 1 of the scaffolding framework B, the inner vertical bar members 1a and the outer vertical bar members 1b are arranged in parallel with each other with an interval corresponding to the width of the scaffold plate 2, and these two vertical bars are arranged. The materials 1a and 1b are connected by a horizontal short width bar material 1c. Further, two inner vertical bar members 1a having a relatively large gap are connected by a long inner horizontal bar member 1d, and two outer vertical bar members 1b are similarly connected by a long outer horizontal bar member, As a whole, it is in the shape of a rectangular parallelepiped that is flat and upright. Here, a member close to the outer wall surface 3 of the building is called an inner bar, and a member facing the outside is called an outer bar.

The actual height of the scaffolding frame B is about three floors of the building A, and the intermediate horizontal reinforcing plate 4 is located at a position about one third from below.
And a similar upper horizontal reinforcing plate 5 is arranged at the uppermost part. As shown in detail in FIG. 2, the vertical bar members 1a and 1b forming the lattice-shaped frame body 1 penetrate through the intermediate horizontal reinforcing plate 4, and at the penetrating portion, these are fastened to each other. It is fixed. With the same structure, the upper horizontal reinforcing plate 5 and the bar material of the lattice-shaped frame body 1 are fixed. The two horizontal reinforcing plates 4 and 5 also serve as scaffolding plates. The two horizontal reinforcing plates 4 and 5 which also function as scaffolding plates, and the five scaffolding plates 2 make a total of 7 in the scaffolding frame B.
A stepped scaffolding stage is constructed.

The entire scaffolding framework B is mainly a bracket 7.
And is installed on the outer wall surface 3 of the building in a hanging shelf type. The bracket 7 includes a vertical support member 7b and an oblique support member 7c so as to form a right-angled triangle at the lower end of the horizontal support member 7a.
It is an assembly member of a steel material that integrates and.

As shown in detail in FIG. 2, building A under construction
Of the horizontal support member 7a of the bracket 7 is fixed by the anchor bolts 8 protruding from the upper horizontal surface of the building, that is, the floor slab A (i) in the example of FIG.
The front vertical support member 7b is brought into contact with the outer wall surface 3 of the building while projecting to the side. Similarly, floor slab A of building A
A plurality of brackets 7 are attached to (i), and the horizontal support members 7a of the brackets 7 are arranged horizontally. Then, by placing the intermediate horizontal reinforcing plate 4 of the lattice-shaped frame body 1 on the horizontal support member 7a of each bracket 7, the scaffolding frame B
Is supported by each bracket 7 as a whole.

Further, as shown in FIG. 1, anchor bolts 9 are provided on the outer wall 3 of the building, and a connecting tool 10 attached to the anchor bolts 9 is used to connect the inner vertical bar 1a of the lattice-shaped frame 1 to the outside of the building. The wall surface 3 and the wall surface 3 are connected with a predetermined gap therebetween. As described above, the weight of the scaffolding framework B is exclusively supported by the brackets 7, but as described above, by connecting the inner vertical bar 1a and the building outer wall surface 3 with the connecting tool 10 at the required points, The installation posture and strength of the scaffolding frame B are more stable, and work can be performed safely.

Further, as schematically shown in FIG. 1, guide arms 11 are attached to essential points of the inner vertical bar 1a of the lattice-shaped frame body 1, and the tip end side of each guide arm 11 is attached to the outer wall surface 3 of the building.
A guide roller 11a attached to the tip of each guide arm 11 is brought into contact with the outer wall surface 3 of the building.

As described above, the intermediate horizontal reinforcing plate 4 is arranged at a position approximately one-third from the bottom of the scaffolding frame B, and the floor slab A on the i-th floor of the building is arranged as shown in FIG. By mounting the intermediate horizontal reinforcing plate 4 on the bracket 7 attached on (i), the scaffolding framework B is installed in a hanging shelf type. Then, the scaffolding framework B above the intermediate horizontal reinforcing plate 4 projects above the floor slab A (i). Using this scaffolding framework B, proceed with the construction work on the upper part of the building A (anchor bolts etc. necessary for the outer wall surface 3 and the floor surface of the parts A (i + 1) and A (i + 2) constructed by the work) Attach).

By the above construction, the new building upper part A (i +
When 1) or A (i + 2) is constructed, the connecting tool 10 is once removed, and the entire scaffolding framework B is pulled up from the top of the new building part using a chain block, etc. The reinforcing plate 4 is located slightly above the bracket 7 which is newly provided in the new building portion.
In that state, a new bracket 7 is attached. afterwards,
The scaffolding framework B is lowered slightly, and the intermediate horizontal reinforcing plate 4 is placed on the new bracket 7. Further, the connecting parts 10 connect the essential points of the scaffolding framework B to the building outer wall surface 3. With this, the upper part of the scaffolding framework B is in the same state as above in which it projects further above the new building portion, and the construction work of the upper part of the building A is advanced using this scaffolding. In this way, the scaffolding framework B is moved upward as the construction progresses.

When the scaffolding framework B is lifted up using the chain block or the like as described above, the guide rollers 11a at the tips of the respective guide arms 11 attached to the required points on the inner surface side of the scaffolding framework B are attached to the outer wall surface 3 Since it is in contact with
A predetermined space is always kept between the scaffolding framework B and the outer wall surface 3, and the scaffolding framework B moves stably along the outer wall surface 3 while the roller 11a rotates.

The details of the crossover plate mechanism forming the essential part of the present invention are shown in FIGS. As shown in FIG. 3, the crossover plate 15 is attached to the end portion of the front scaffolding plate 2 at each step or the width bar 1c of the lattice-shaped frame body 1 supporting the end portion by a hinge structure.
Reference numeral 16 indicates the hinge axis. The connecting plate 15 rotates about a hinge shaft 16 as shown by an arrow, and is capable of being displaced from a substantially horizontal posture to a vertical upward or almost obtuse posture. Through holes 15a are provided at predetermined positions in the transition plate 15 of each step.
A wire rope 17 that vertically connects the remarkable crossover plates 15 in parallel with each other is inserted through the through hole 15a, and the wire clips 17a are fixed to the wire rope 17 at required intervals. Further, the pulleys 18 and 19 provided on the upper part of the scaffolding frame B are hooked around the upper side of the wire rope 17 and guided downward, and the winding machine 20 provided on the upper part of the intermediate horizontal reinforcing plate 4 of the scaffolding frame B is provided. Tied to.

As shown in FIG. 4, when the wire rope 17 is wound by the winder 20, the wire rope 17 is pulled upward and each wire clip 17a is caught around the passage hole 15a of the connecting plate 15. Then, the crossing board 1 of each step
5 interlock with each other and rotate upward about their respective hinge shafts 16 and fall into the scaffolding framework B due to the remaining force thereof, resulting in an obtuse angle posture. In this state, since each crossing board 15 falls down on the scaffolding frame B, it is stable and there is almost no protrusion. Therefore, when jumping the scaffolding framework B upward, it does not interfere with the adjacent scaffolding framework B. In the above-mentioned embodiment, the crossover plate 15 has an obtuse angle, but it may have an obtuse angle instead of an obtuse angle.

When the wire ropes 17 are lowered after the two adjacent scaffolding frameworks B and B are jumped upwardly and fixed, and then the wire ropes 17 are lowered, the crossing plates 15 of the respective stages are interlocked to rotate downward around the hinge shafts 16, respectively. It moves to be in a substantially horizontal posture, and its tip end side overlaps the end portion of the adjacent scaffold plate 2.
This means that the adjacent scaffold frameworks B and the market plates 2 of B are connected by the crossover plate 15.

[0030]

In the crossing plate mechanism of the present invention, when the wire rope is pulled upward, the crossing plates of each step are interlocked with each other, and the crossing plates are rotated upward about the respective hinges so as to have a substantially vertical or obtuse posture. become. This is the withdrawal state of each crossing board, and the scaffolding framework can be jumping moved as it is. Further, when the wire rope is lowered, the transition plates of the respective stages are interlocked with each other, and each of the transition plates pivots downward about the hinge to be in a substantially horizontal posture, and the tip end side thereof overlaps the end portion of the adjacent scaffold plate. This means that the market boards of adjacent scaffolding frames are connected by the crossing boards. In this way, the work of installing the cross plate to connect the market plates of the adjacent scaffold frames and the work of withdrawing the cross plate during jumping can be performed much more easily and efficiently than in the past.

Further, by adding a configuration in which the upper side of the wire rope is hung around a pulley provided on the upper part of the scaffolding frame and connected to a winder provided in the middle part of the scaffolding frame, the pulley is mounted on the scaffolding frame. The operator can easily operate the wire rope, and the workability is further improved.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing an overall configuration of an embodiment of a jumping scaffolding for building construction to which the present invention is applied.

FIG. 2 is a perspective view of a main part of a support mechanism for a scaffolding frame in the above embodiment.

FIG. 3 is a partial detailed view of a bridge mechanism which is a main part of the present invention in the above embodiment.

FIG. 4 is a schematic view of a state in which a scaffolding framework including the same bridge mechanism is installed next to another scaffolding framework.

[Explanation of Codes] A Building B Scaffolding Frame 1 Lattice Frame 1a Inner Vertical Bar 1b Outer Vertical Bar 1c Width Bar 2 Scaffolding Board 3 Outer or Outer Wall 4 Intermediate Horizontal Reinforcing Plate 5 Upper Horizontal Reinforcing Plate 6 Clamp 7 Bracket 7a Horizontal support member 7b Vertical support member 7c Oblique support member 8 Anchor bolt 9 Anchor bolt 10 Connecting tool 11 Guide arm 11a Guide roller 15 Cross plate 16 Hinge shaft 17 Wire rope 18, 19 Pulley 20 Winder

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Mitsuyuki Yasuhara 35, Nishimachi, Chuo-ku, Kobe, Hyogo Prefecture Obayashi Corporation Kobe Branch (72) Inventor, Yushi Yamashita 35, Nishimachi, Chuo-ku, Kobe City, Hyogo Prefecture Kobe Branch, Obayashi Corporation (72) Inventor Shigekazu Sakurai 35, Nishimachi, Chuo-ku, Kobe, Hyogo Prefecture Obayashi Corporation Kobe Branch (72) Inventor, Go Watanabe 35, Nishimachi, Chuo-ku, Kobe City, Hyogo Prefecture (72) Invention Author Kei Sakamoto 35 Nishimachi, Chuo-ku, Kobe, Hyogo Prefecture Obayashi Corporation Kobe Branch (72) Inventor Tetsuro Ito 35, Nishimachi, Chuo-ku, Kobe City Hyogo Prefecture Obayashi Corporation Kobe Branch

Claims (2)

[Claims] 1. A construction of a scaffolding frame in which a plurality of steps of scaffolding plates are horizontally attached to a lattice-shaped frame body composed of vertical and horizontal bars is installed on the outer wall surface of a building under construction in a hanging shelf type, and the progress of construction work. In the jumping scaffold for building construction work of the method of moving the entire scaffolding framework upwards, a crossing plate is attached to the width bar of the lattice-like frame body that supports the end of the scaffolding plate at each step or the end. Attached with a hinge structure, this crossover plate can be rotated upward from a substantially horizontal posture to be displaced in a substantially vertical or obtuse angle posture, and the crossover plates of each stage are linked in parallel with each other by a wire rope that connects vertically A jumper scaffold mechanism for building construction work characterized by being connected. 2. The pulley according to claim 1, wherein a pulley provided on an upper portion of the scaffolding frame is wound around an upper side of the wire rope and is connected to a winder provided at an intermediate portion of the scaffolding frame. Crossing mechanism for jumping scaffolds for building construction work.