JPH07103675B2 - Scaffolding frame pedestal fittings - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention attaches to a tubular pedestal of an ordinary gate-shaped scaffolding frame having a well-known structure to construct a relatively high-rise super high-rise building such as 10 to 40 stories. The present invention also relates to a pedestal joint fitting for a scaffolding frame that enables the construction of a folding scaffolding device that can also be applied to.

[Conventional technology]

In recent years, scaffolding devices used in the construction and treatment of high-rise buildings have many gate-shaped scaffold frames made of metal vipes, unlike the traditional method of fixing combined logs with wires. It is widely used to prepare and connect these scaffolding frames in vertical and horizontal directions to connect them together, and to lay a scaffolding board between the scaffolding frames facing each other in the horizontal direction and to stretch the breath.

Using such a gate-shaped scaffolding frame makes it possible to construct a robust scaffolding device and is remarkably superior to the conventional log-assembled scaffolding in that it can be used repeatedly, but on the other hand, it is equivalent to construction and dismantling. The number of days and the number of workers required are the same as those of the old ones, and this is a scaffolding cost that takes into construction and repair costs, resulting in high construction costs.

In order to fundamentally solve such a problem, the present inventor has disclosed in Japanese Patent Application No. 62-194860 that a joint member is integrally formed on the upper and lower ends of each pedestal of a scaffolding frame formed in a gate shape. We are inventing a scaffolding frame that is attached. This scaffolding frame is assembled in a short time by connecting joint members of pedestals vertically adjacent to each other to form a rotary joint, and by bending both pedestals through the joint. , It has an excellent effect that it can be instantly three-dimensionally constructed by simply lifting or lowering it with a wire, or it can be folded and easily removed, but the problem is
Since the joint members are integrally attached to the upper and lower ends of the pedestal, it is necessary to purchase a new one.

Therefore, even if you own a conventional portal scaffolding frame,
This has a disadvantage that it cannot be used as a folding scaffolding device.

In order to solve such inconvenience, the present inventor has further invented, in Japanese Patent Application No. 62-194861, a bendable joint metal which can be attached to an open end of a tubular pedestal in a scaffolding frame. This joint metal fitting is integrally fixed to the free ends of a pair of dog-legged brackets that are rotatably supported on a pivot shaft, respectively, with pipe parts having substantially the same diameter as the ends of the pedestals. In the state in which the base end portions of the connecting pin members that are inserted into the opposite end portions of the upper and lower pedestals are fitted and fixed to each other and one pipe portion is linearly extended to the other pipe portion. The projections are inserted into the opposite end portions of the projections. The joint fittings are connected between the tubular pedestals of the portal scaffolding frame arranged vertically adjacent to each other so that It is possible to construct a scaffolding device having the same function as a scaffolding frame to which a joint member is integrally attached.

[Problems to be Solved by the Invention]

However, when the fitting fitting of the above-mentioned prior art is attached to a pedestal of a ready-made scaffolding frame formed to a specified length dimension,
Since the pedestal becomes longer by the length of the pipe section fixed to the bracket of the joint fitting, the mounting height position of the scaffolding plate moves upward as it goes to the upper floors, and the scaffolding plate is accurately arranged according to each floor. You can no longer set up. This height error is tolerable to some extent, but in the above-mentioned fittings of the prior art, the bracket is formed in a dogleg shape in order to bring the pivot shaft as close as possible to the connecting pin member. , It is extremely difficult to design to shorten the protruding length from the end of the pedestal.

For this reason, specifically, when the fitting is extended, the protruding size of the fitting between the upper and lower pedestals connected through the fitting is at least about 10 cm. It is regarded as a safety limit for building scaffolding equipment
If you build it on the height of about 40 floors, the scaffolding board on the top floor will be installed at a position higher than the set height by nearly 4 m, which can be used as a scaffolding for such a high-rise building. There was a problem that it did not exist.

The present invention has been made in order to solve the above problems, and while it can be easily attached to a ready-made scaffolding frame, in this attached state, the protruding length of the scaffolding frame from the pedestal is extremely large. It is intended to provide a pedestal joint fitting that is short and can be used to construct a scaffolding device for a high-rise building.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the pedestal joint fitting of the scaffolding frame of the present invention has tubular legs of scaffolding frames (B) and (B) which are vertically and adjacently arranged as shown in the drawings of the embodiments. Pillar (1)
Both pedestals (1) are interposed between the upper and lower opening ends of (1).
A pedestal joint fitting that foldably connects (1),
The base ends of the flat plate-shaped upper and lower blades (5) and (6) are pivotally attached to a vertically rotatable portion by a pivot shaft (7) to form a hinge (4). Upper and lower wings (5)
The upper and lower connecting pin members (8) and (9) are fixed to the (6) so that the facing end portions (8b) and (9b) are in a penetrating state, and the facing end faces of these upper and lower connecting pin members (8) and (9) are fixed to each other. The opposing ends (8b) and (9b) are provided with a protrusion (15) at one end of the opposing ends (8b) and (9b) and a fitting hole (14) at the other end for fitting the protrusion (15). , And upper and lower wings (5)
The upper and lower connecting pin members (8) and (9) protruding in the vertical direction from (6) are configured to be inserted and fixed in the opposite ends of the upper and lower pedestals (1) and (1).

[Action]

According to the present invention, the connecting pin members (8) and (9) corresponding to the open ends of the tubular pedestals (1) and (1) of the scaffolding frames (B) and (B), which are vertically opposed to each other, have the above-described configuration. ), The scaffold frames (B) and (B) of the pedestal (1)
(1) The hinges can be folded and connected to each other via hinges (4) so that the protrusions (15) fit into the fitting holes (14) in the extended state, and the extended state is maintained. , And a scaffolding frame (B) that is connected in multiple layers
The vertical load of (B) is received by the joint surface portions on the other end side (8b) (9b) of the connecting pin members (8) and (9).

Then, in this extended state, the upper and lower pedestals (1) (1)
Since the opposing end surfaces of the projections (15) and the fitting holes (14) fitted to each other via the flat plate-shaped blades (5) (6) are provided, the upper and lower pedestals (1) The dimension between the opposing end faces of (1) can be made extremely small. Therefore, even when a plurality of scaffolding frames formed by these pedestals (1) and (1) are erected above each scaffolding frame, the scaffolding frame is arranged in each scaffolding frame. The provided scaffolding plate can be placed within an allowable error range with almost no deviation in the height direction with respect to each floor.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
1 to 3 show a pedestal joint fitting (A) according to this embodiment.
Fig. 4 and Fig. 5 show the stanchion fitting (A).
Shows an example of a scaffolding frame (B) having a known structure that can be attached.

The scaffolding frame (B) shown in FIG. 4 and FIG. 5 has a pair of metal pipe pedestals (1) (1) installed at regular intervals, and these pedestals (1) (1) It is formed in a gate shape by integrally connecting between the end portions of the scaffold by a horizontal supporting rod (2) for erection of a scaffold plate. In the figure, (3) ... are brace engaging pins attached to the pillars (2) and (2).

In FIGS. 1 to 3, (4) is a hinge, which is formed by pivotally supporting a pair of upper and lower blades (5) and (6) on a horizontal plate support shaft (7). That is, each wing piece (5) (6) is provided with a cylindrical boss portion (5a) (6a) rotatably fitted and supported by the pivot shaft (7) at the base end thereof, and Boss (5a)
The flat plate portions (5b) and (6b) are integrally extended in the tangential direction from the week end portion of (6a), and the boss portions (5a) and (6b) of the blades (5) and (6) are Boss (5a) of one wing (5)
And a boss portion (6a) of the other wing piece (6) are alternately combined, there is a space portion into which the mutual boss portions enter in the axial direction, and is divided into a plurality of portions. Then, the boss portions (5a) (6a) of both wing pieces (5) (6) are alternately bited, and the pivot shaft (7) is inserted into the boss portions (5a) (6a) in a retaining manner. The hinge (4) is configured by fitting.

Further, each of the blades (5) and (6) can be made of a flat plate having an appropriate thickness (about 6 mm). That is, by partially notching the base end of the flat plate and bending the notched portion into a cylindrical shape, the cylindrical portion is bossed (5
a) (6a) and a flat plate portion extending from the boss portions (5a) (6a) can be formed on the flat plate portions (5b) (6b).
In addition, each flat plate (5b) (6b) has a through hole (5
c) (6c) is drilled, and the connecting pin members (8) and (9) made of metal pipe are respectively provided in the through holes (5c) and (6c) so that the surfaces facing each other are flat plate portions (5b) (6b) inner surface side. It is fitted in a penetrating state projecting to and is fixed by welding or the like.

The pair of upper and lower connecting pin members (8) and (9) are tubular at one end side (8a) (9a) protruding to the outer surface side of the flat plate portions (5b) (6b) of the corresponding blade pieces (5) (6). It is fitted and connected to the open end of the pedestal (1) (1). That is, the connecting shaft insertion holes (10) and (10) are formed in the distal ends of the connecting pin members (8) and (9), respectively, while the scaffold frames (B) and (B) are provided.
The connecting shaft insertion hole (10) (1) is also attached to each pedestal (1) (1) of
The through holes (11) and (11) are drilled in line with (0). And
After fitting the upper and lower connecting pin members (8) and (9) into the open ends of the pedestals (1) and (1), the through holes (11) of the pedestals (1) and (1)
By inserting the connecting shaft (12) such as 6 from the bolt through the (11) and the connecting shaft insertion hole (10) (10), and by using the cotter pin (13) etc. to prevent coming off, The pedestals (1) and (1) of the scaffolding frames (B) and (B) opposite to each other are integrally connected to each other through the connection pin members (8) and (9) of the pedestal joint fitting (A). It is what is done.

The end faces of the other end portions (8b) and (9b) of the connecting pin members (8) and (9) that project toward the inner surfaces of the flat plate portions (5b) and (6b) are formed into flat annular surfaces, and hinges (4 ), The end faces on the other end side (8b) (9b) are joined together. Further, the lower end surface (the other end surface) of the upper connecting pin member (8) is in a state of facing the pipe opening, and the opening portion is configured to function as the fitting hole (14). On the other hand, the lower connecting pin member (9) is provided at its upper end portion (the other end portion) with a protrusion (15) projectingly fitted into the fitting hole (14) of the upper connecting pin member (8). ,
In the closed state of the hinge (4), the projection (15) of the lower connecting pin member (9) fits into the fitting hole (14) of the upper connecting pin member (8), whereby the upper and lower pedestals (1) ( 1) is capable of holding a state in which it is linearly extended.

When the hinge (4) is opened and closed, the protrusion (15) of the lower connecting pin member (9) is accurately fitted into the fitting hole (14) of the upper connecting pin member (8) without interference. Since it must be detachable, both the connecting pin members (8)
The joint position of the end faces of the other end side (8b) (9b) in (9) is lower than the center line (l) of the pivot shaft (7) by a dimension (h) corresponding to the protrusion amount of the protrusion (15). It is necessary to shift them to the side, so that the amount of protrusion of the upper connecting pin member (8) toward the inner surface of the flat plate portion (5b) is lower connecting pin member (9).
It is set larger than that.

When constructing a folding scaffolding apparatus using the pedestal joint fittings (A) ... And the above-mentioned scaffolding frame (B) constructed as described above, as shown in FIG. 6 to FIG. The scaffolding frames (B) ... are arranged in a hierarchical manner with the upper and lower open ends of the pedestals (1) (1) facing each other, and the scaffold frames (B) are arranged on the open ends of the pedestals (1) (1) facing each other. The connecting pin members (8) and (9) of the metal fitting (A) are fitted to connect the open end faces of the pedestals (1) and (1) to the flat plate portions (5b) and (6b) of the upper and lower blades (5) and (6). And the axial center of the pivot shaft (7) of the hinge (4) is aligned with the axial direction of the horizontal support rod (2) of the scaffolding frame (B), as described above. 12) to be connected integrally. By doing so, both pedestals (1) and (1) connected through the pedestal joint fitting (A) are flexibly connected around the pivot shaft (7) only in the direction in which the hinge (4) opens. It is something. Also, the upper and lower pedestals (1) through the metal fittings (A)
When (1) is extended in a straight line, the protrusion (15) of the lower connecting pin member (9) is inserted into the fitting hole (14) of the upper connecting pin member (8), and the extended state is maintained. At the same time, the vertical load applied from the upper pedestal (1) is received by the end surface of the other end side (9b) of the lower connecting pin member joined to the end surface of the other end side (8b) of the upper connecting pin member. It is a thing.

In this way, since the pedestal opening end faces of the scaffold frames (B) and (B) are brought into contact with the flat plate portions (8b) and (9b) of the winglets (5) and (6), respectively, the pedestal (1) ... In the extended state, the distance between the end portions of the pedestals (1) (1) is the flat plate portions (5b) (6) facing each other.
b) Approximately equal to the outer surface spacing, and these flat plate parts (5b)
The distance between the outer surfaces of (6b) corresponds to the size of the diameter of the horizontal pivot shaft (7) plus the thickness of both flat plate portions (5b) and (6b). This size is about 25 mm due to the design with sufficient safety strength, and even when it is built on the super high-rise of about 40 stories, which is the safety limit of the folding scaffolding device, the scaffolding board of the top floor is It is possible to put the height position within an allowable error range with respect to the set height.

As a matter of course, the metal fittings (A) connected to the upper and lower ends of each scaffolding frame (B) have the hinge (4) whose opening and closing direction is opposite to that of the lower end. Therefore, it is necessary to fold each pedestal (1) in a zigzag shape. The present invention can be applied not only to ready-made pedestals but also to new pedestals, and according to this, the joint part can be made bulky.

Next, the scaffolding frame group (16), which is foldably connected in a zigzag manner through the pedestal joint fittings (A), and the scaffolding frame group (16) ... are required at regular intervals in the lateral direction. At the same time, the scaffolding plates (C) are installed between the scaffolding frames (B) to form one unit. Further, it goes without saying that the above units can be extended further upward and assembled in multiple layers.

The space-regulating lateral frame (17) and the lower space-regulating lateral frame (1
8) is not always necessary, and may be provided as needed.

Then, each of the scaffolding frame groups (1) folded by hanging the wire (R) on the horizontal frame (17) for controlling the upper space of the scaffolding device thus assembled or an appropriate member and lifting it up.
6) ... are respectively three-dimensionally constructed by being extended at the connecting portions of the pedestal joint fittings (A). In this three-dimensional construction state, braces (D) ... are stretched in an X shape across the brace engagement pins (3) (3) of the scaffolding frames (B) (B) of each stage that are adjacent and facing each other. This provides the scaffolding device with robustness.

Further, if necessary, a plurality of jack devices (not shown) having a well-known structure are attached to the lower frame of the lower space regulation lateral frame (7) or the pedestal (1), so that the folding scaffolding device can be used in the field. It is possible to maintain and adjust the horizontal posture.

Further, when the folding type scaffolding device is not used, such as during storage or transportation, the scaffolding frame group (16) is basically used as a connecting portion with the metal fittings (A) with the place (D) removed. It can be folded in a zigzag shape as a unit.

If the pedestal joint fitting (4) is connected to the pedestal (1) via the connecting shaft (12) as described above, it can be removed again, but the connecting pin member (of the fitting (A) ( 8) (9)
After being fitted to the pedestal (1), the conventional scaffolding frame (B) may be fixedly and integrally joined by welding so that the scaffolding frame (B) can be used as a scaffolding frame exclusively for a folding type scaffolding device.

Further, the hinge (4) of the pedestal joint fitting (A) is configured so that the pivot shaft (7) can be pulled out from the boss portions (5a) (6b), so that the blade pieces (5) (6) can be removed when not in use. ) Can be separated,
By doing so, the metal fittings (A) are attached to the upper and lower ends of the pedestal (1) during transportation and holding, and the pedestal (1) is kept.
(1) The convenience of handling can be improved by separating them.

〔The invention's effect〕

As described above, in the case of the pedestal joint fitting of the present invention, the scaffolding frame (B) disposed adjacent to and facing each other in the vertical direction.
A tubular pedestal (1) of (B) (1) is a pedestal joint fitting which is interposed between the upper and lower ends of the tubular pedestal (1) (1) and foldably connects the two pedestals (1) (1). The hinges (4) are formed by pivotally attaching the base end portions of the pieces (5) and (6) to a vertically rotatable portion by a pivot shaft (7) to form the hinge (4). 5) (6) with the opposing end portions (8b), (9b) penetrating the upper and lower connecting pin members (8) and (9), respectively, and the upper and lower connecting pin members (8) and (9) facing each other. The opposing ends (8b) and (9b) are made to face each other so that they can be joined, and a protrusion (15) is provided at one end of the opposing ends (8b) and (9b) and the protrusion (1) is provided at the other end.
The upper and lower pedestals (1) are provided with a fitting hole (14) for fitting the upper and lower connecting pin members (8) and (9) protruding vertically from the upper and lower blade pieces (5) and (6). The tubular pedestal (1) (1) (1) (1) (1) (1) of the scaffolding frames (B) and (B), which are arranged to face each other vertically, is configured so as to be inserted and fixed in the opposite ends of (1). ) Of the scaffolding frames (B) and (B) are hinged (4) by fitting and connecting the corresponding connecting pin members (8) and (9) respectively. ) And can be easily and accurately folded and extended, and in the extended state, the protrusion (15) fits into the fitting hole (14) so that the extended state can be maintained.
Moreover, the vertical load of the scaffolding frames (B) and (B) connected in the upper and lower multi-stages is the other end side (8b) (9) of the connecting pin members (8) (9).
It can be received at the joint surface part of b). Therefore, it is possible to fabricate a folding scaffolding device that can be firmly assembled by using the conventional scaffolding frame (B) ...

Moreover, while having such an excellent function, when the upper and lower connecting pin members (8) and (9) are inserted and fixed in the opposing ends of the upper and lower pedestals (1) and (1), they are A state in which a projection (15) and a fitting hole (14) fitted to each other via flat plate-shaped blades (5) and (6) are provided on opposite end surfaces of the pedestal (1) (1) of Therefore, the dimension between the facing end faces of the upper and lower pedestals (1) and (1) can be made extremely small. Therefore, a plurality of scaffolding frames formed by these pedestals (1) and (1) can be constructed above the framing structures. Even in such a case, the scaffolding plate disposed on each scaffolding frame can be adapted to each layer without causing a displacement in the height direction.

Therefore, when the pedestal joint fitting of the present invention is applied to a folding scaffolding device for a super high-rise building of about 40 floors for which a folding scaffolding device is suitable, the height position of the scaffold board on the upper floors is set. Since it can be accommodated within an allowable error range with respect to height, a normal scaffolding frame (B) without fitting fittings is used for almost all high-rise structures within a range where scaffolding devices can be constructed. It has an excellent effect that can not be seen at all in the past.

[Brief description of drawings]

1 to 3 show an embodiment of a pedestal joint fitting according to the present invention. FIG. 1 is a partially cutaway front view showing a state where pedestals are connected, and FIG. 2 is a notched side surface of the same part. Figures and 3 are front views showing a bent state, FIGS. 4 and 5 show an example of a scaffolding frame to which the pedestal joint fitting of the present invention is attached, and FIG. 4 is a side view and FIG. Shows a front view, FIGS. 6 to 9 show a scaffolding device constituted by using the scaffolding frame and the pedestal joint fitting of the present invention, FIG. 6 is a schematic front view, and FIG. 7 is a main part. FIG. 8 is an enlarged perspective view, FIG. 8 is an enlarged view of a VIII portion in FIG. 7, and FIG. 9 is an enlarged view of a IX portion in FIG. (1) …… Tubular pedestal, (4) …… Hinges, (5) (6)…
… Winglets, (5a) (6a) …… Cylindrical boss, (5b) (6b)
...... Flat part, (7) …… Horizontal pivot, (8) (9) ……
Connecting pin member, (8a) (9a) ... one end side of the connecting pin member, (8b) (9b) ... other end side of the connecting pin member, (14)
…… Mating hole, (15) …… Protrusion, (A) …… Pedestal fitting, (B) …… Scaffold frame.

Claims (1)

[Claims] 1. A scaffolding frame (B) (B), which is disposed so as to be adjacent to each other in the vertical direction, is interposed between the upper and lower ends of the tubular stilts (1) (1), and both stilts (1) ( 1) A pedestal joint fitting for connecting foldably, which is a flat plate-shaped upper and lower wing piece (5) (6)
A hinge (4) is formed by pivotally attaching the base end of the hinge to a vertically rotatable portion by means of a pivot shaft (7), and facing the upper and lower blades (5) (6) of the hinge (4). The upper and lower connecting pin members (8) and (9) are fixed to each other with the end portions (8b) and (9b) being in a penetrating state, and the facing end surfaces of these upper and lower connecting pin members (8) and (9) are opposed to each other so that they can be joined. With the opposite ends (8b) (9b)
A projection (15) is provided at one end of the above, and a fitting hole (14) for fitting the projection (15) is provided at the other end thereof, and the upper and lower blade pieces (5) (6) are arranged in the vertical direction. A pedestal joint fitting for a scaffolding frame, characterized in that the projecting upper and lower connecting pin members (8) and (9) are inserted and fixed in the opposite ends of the upper and lower pedestals (1) and (1).