JPH0544339A - Outside scaffold device for building - Google Patents

Abstract

PURPOSE:To smoothly progress execution by simply constructing an elevatable outside scaffold device to prevent it from obstructing going and coming through the opening of a building and to remarkably facilitate the scaffold elevating work. CONSTITUTION:Plural number of lateral frames 14 are protrusively provided in a cantilever-shape from a vertical frame 12. The length L of the vertical frame 12 is established so as to correspond with the height H of plural floors. The lateral frame 14 is fixed to the vertical frame 12 at its basic end 14a with a space (h) taken as much as one floor height of a building 18. A bracket 24 hangingly supported on a crane hook 26 is unitedly fixed to the upper end of the vertical frame 12. The free end of the lateral frame 14 is detachably fixed to an anchorbolt 28 plantedly provided on the floor face 20 of the building 18 through an angle piece 22.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an external scaffolding device for use in constructing an outer wall of a building having multiple floors.

[0002]

2. Description of the Related Art Conventionally, a scaffold is assembled on the outside of a building and work is performed on this scaffold to perform an outer wall construction of a building, etc. Assembly work becomes extremely difficult. Therefore, in such a high-rise building, it is conceivable that the scaffolding will be bid up or rearranged to gradually raise it.
As such a scaffold, for example, JP-B-63-31629
There is one disclosed in the publication.

That is, such a scaffold of the type which is sequentially raised is used in a jumping construction method in which the molds of the outer wall are raised one lot at a time. Is provided with anchor metal parts for detachably fixing the scaffold frame and the rail. Then, the scaffolding frame is auctioned, after once disengaging the rail from the anchor metal and raising it by one lot with a jack, the rail is fixed to the anchor metal again, and then the scaffolding frame is detached from the anchor metal. After that, the scaffolding frame is jacked up along the rails, and the scaffolding frame is again fixed to the anchor hardware.

[0004]

However, in such a conventional external scaffolding device, the rail and the scaffolding frame,
Further, a jack and the like are incorporated as one unit, which has a remarkably complicated structure. For this reason, the scaffolding device becomes expensive, and in a high-rise building with many openings such as a high-rise apartment building, the scaffolding device having a complicated configuration blocks the opening. The device itself interferes with the movement between the scaffold and the building, which adversely affects the work progress.

Further, the raising of the scaffolding frame requires the work of raising the scaffolding frame and the rail alternately.
In addition, both the scaffolding frame and the rail have to be attached to and detached from the anchor hardware, respectively, which makes the auctioning work of the scaffolding frame extremely complicated, which impairs the speed of the construction period.

In view of the conventional problems, the present invention has a simpler structure for a scaffold that can be moved up and down to prevent it from interfering with the opening and closing of a building and to significantly raise the scaffold. It is an object of the present invention to provide an external scaffolding device for a building, which facilitates the smooth progress of construction work.

[0007]

In order to achieve such an object, the present invention has a vertical length arranged along the outer side of a building having a height of a plurality of layers of the building having a multi-storey floor. A frame, a plurality of horizontal frames each of which is attached to the vertical frame at an interval of floor heights, and each of which is horizontally cantilevered, and a scaffold attached to the horizontal frame. A plate, a connecting member that detachably fixes the free end portion of the horizontal frame to each floor surface of a building, and a lifting device that suspends a skeleton composed of the vertical frame and the horizontal frame so that the frame can be lifted and lowered. Prepare for the external scaffolding device of the building.

[0008]

With the above construction, in the building external scaffolding device of the present invention, a vertical frame having a height of a plurality of layers and a cantilever-shaped mounting on the vertical frame with a floor height interval of one layer. The scaffold skeleton is formed with the horizontal frame, and the scaffold board is attached to the horizontal frame of the ancestor. The projecting end of the horizontal frame is detachably fixed to each floor surface of the building through a connecting member. When ascending the scaffold, the connecting member is detached to separate the horizontal frame from the floor surface, and in this state, the skeleton is lifted by the height of the vertical frame through the lifting device, and then the connecting member. The horizontal frame is again fixed to each floor via.

That is, the structure of the external scaffolding device of the present invention can be remarkably simplified, and when the scaffold is raised, the horizontal frame and the floor surface are disconnected from the vertical frame and the horizontal frame. It is only necessary to raise the skeleton once, and moreover, it is possible to raise the height of the vertical frame for multiple layers at one time, making it easy and quick to raise the scaffold. be able to.

[0010]

Embodiments of the present invention will be described in detail below with reference to the drawings. 1 to 5 show an embodiment of an external scaffolding device 10 for a building according to the present invention, and FIG. 1 shows an external scaffolding device 10
2 is an exploded perspective view of a mounting portion of the external scaffolding device 10, FIG. 3 is a plan view of the mounting portion, and FIGS. 4 and 5 are explanatory views showing a detached state of the mounting portion.

As shown in FIG. 1, the external scaffolding device 10 of this embodiment has a vertical frame 1 arranged along the outside of a building 18.
2, a plurality of horizontal frames 14 that are cantilevered and attached to the vertical frame 12, a scaffolding plate 16 that is mounted and attached on the upper side of the horizontal frame 14, and a projecting end of the horizontal frame 14 Thing 1
8 is provided with an angle piece 22 as a connecting member that is detachably fixed to the floor surface 20.

The building 18 has multi-story floors such as a high-rise building, and the length L of the vertical frame 12 is the height of a plurality of layers (in this embodiment, two floors). Formed with H. The horizontal frames 14 are fixed to the vertical frame 12 at their base end portions 14a at a floor height interval h of one layer (first floor) of the building 18, and these horizontal frames 14 are horizontally separated from each other. It is projected like a cantilever. A bracket 24 is integrally fixed to the upper end of the vertical frame 12, and the bracket 24
The vertical frame 12 is suspended via the hook 26 of a crane (not shown) serving as a lifting device via the.

On the floor surface 20 on which the projecting end portion of the horizontal frame 14 is placed, a pair of anchor bolts 28, 28 located at both sides of the horizontal frame 14 are planted. , 28 to which the angle piece 22 is attached.

The angle piece 22 is made of an angle member having an L-shaped cross section as shown in FIG.
Cutouts 30 and 3 for cutting the anchor bolts 28 and 28 at both ends by cutting to a larger predetermined length l
2 is formed. One of the cutouts 30 and 32 is cut out in the length direction from one end 22a of the angle piece 22, and the other cutout 32 is cut out from one side 22b of the angle piece 22 in an L shape. is there.

In order to fix the free end of the horizontal frame 14 to the floor surface 20, as shown in FIG. 2, the horizontal frame 14 is first placed between the pair of anchor bolts 28, 28. .. Next, the notch portions 30, 32 of the angle piece 22
Is inserted into the anchor bolts 28, 28, and the angle piece 22 is arranged above the horizontal frame 14. In this state, the washer 3 is attached to the anchor bolts 28, 28.
The nuts 36, 36 are screwed together via 4, 34, and the angle pieces 22 are tightened and fixed by the nuts 36, 36. Also, the washers 34, 34 are anchor bolts 28,
The through holes 34a, 34a of the 28 are cut out, and the washers 34, 34 can be attached and removed from the anchor bolts 28, 28 in the direction perpendicular to the axis of the anchor bolts 28, that is, in the lateral direction, through the notch. ..

In the building external scaffolding apparatus 10 of the present embodiment having the above-described structure, first, the skeleton B including the vertical frame 12 and the horizontal frame 14 is lifted to a predetermined height by a crane,
The horizontal frames 14 are fixed to the anchor bolts 28, 28 planted on the floor surface 20 of the building 18 via the angle pieces 22, washers 34, 34 and nuts 36, 36. The fixed state of the horizontal frame 14 is shown by cutting from the nuts 36, 36 in the plan view of FIG.

The external scaffolding device 10 is fixed by mounting and mounting the scaffolding plate 16 on the upper side of the horizontal frame 14 with the horizontal frame 14 fixed. Although only one vertical frame 12 is shown in FIG. 1 in the external scaffolding device 10, a plurality of vertical frames 12 are actually provided in the width direction of the building 18 (direction perpendicular to the plane of FIG. 1). Are provided in a state of being coupled to each other at appropriate intervals, and the scaffolding plate 16 is hung and supported between the horizontal frames 14 attached to the respective vertical frames 12.

By the way, in the external scaffolding device 10, since the horizontal frame 14 to which the scaffolding plate 16 is attached is projected from the vertical frame 12 in a cantilever manner, the projecting end of this horizontal frame 14 is placed on the floor surface 2.
When fixed to 0, no obstacle is provided in the opening 18a of the building 18. Therefore, it is possible to freely move between the building 18 and the scaffolding when carrying out the outer wall work, and it becomes extremely easy to carry out building materials and the like, and the progress of the work can be greatly promoted.

Next, when the external scaffolding device 10 is lifted by refilling, first, the angle piece 22 of each horizontal frame 14 is removed while the vertical frame 12 is suspended by a crane,
The horizontal frame 14 is detached from the anchor bolts 28, 28. Then, the skeleton B composed of the vertical frame 12 and the horizontal frame 14 is raised by the height of the vertical frame 12 by the crane, that is, by two layers, and the protruding end of the horizontal frame 14 is again fixed to the floor surface 20 by the anchor bolt 28. And the angle piece 22 and the like. By securely fixing the scaffolding plate 16 to the lateral frame 14, it is not necessary to remove the scaffolding plate 16 each time the external scaffolding device 10 is refilled.

As described above, in the external scaffolding device 10 of this embodiment, by constructing the skeleton B with the vertical frame 12 and the horizontal frame 14, the structure can be remarkably simplified and the external scaffolding device can be used. When raising 10, horizontal frame 1
It is possible to complete the work by one lifting operation, in which the vertical frame 12 is lifted by the crane by separating the floor 4 and the floor surface 20. Moreover, a plurality of layers, which is the height of the vertical frame 12, that is, two layers in this embodiment, can be raised at one time by this one-time raising operation. Therefore, the work of raising the external scaffolding device 10 can be performed easily and quickly, and in combination with the fact that it does not obstruct the opening 18a of the building 18, it is possible to significantly speed up the construction. ..

By the way, the angle plate 22 for fixing the lateral frame 14 when the external scaffolding device 10 is refilled.
It is necessary to attach and detach the anchor bolts 28, 28 each time, but in this embodiment, since the notch portions 30, 32 are provided at both ends of the angle plate 22, the attachment and detachment to the anchor bolts 28, 28 is very easy. It can be carried out.

That is, when detaching the angle plate 22 from the anchor bolts 28, 28, first, the nut 3
6 and 36 are loosened, and the washers 34 and 34 are inserted into the anchor bolts 28 and 28 through the notch-shaped insertion holes 34a and 34a.
Sideways. Next, as shown in FIG. 4, the angle piece 22 is rotated in the clockwise direction (X) in the drawing around the anchor bolt 28 locked in the notch 30, and the other L-shaped notch 32 is formed. It is detached from the anchor bolt 28. Then, as shown in FIG.
The angle piece 22 is moved horizontally by moving the angle piece 22 in a direction (Y) in which the anchor piece 28 and the anchor bolt 28 that is locked thereto are separated from each other.
It can be removed from 8, 28.

On the other hand, the attachment of the angle piece 22 to the anchor bolts 28, 28 can be performed by performing an operation reverse to that of the removal.

Therefore, in order to attach / detach the angle piece 22 to / from the anchor bolts 34, 34, the nuts 34, 34 are used.
Need only be loosened, that is, the angle piece 22 can be detached from the side while the nuts 34, 34 are attached to the anchor bolts 28, 28. For this reason,
The refilling work of the external scaffolding device 10 is significantly simplified.

[0025]

As described above, in the building external scaffolding device of the present invention, the horizontal frame to which the scaffold plate is attached is cantilevered from the vertical frame having the height of a plurality of layers of the building. Projectingly, the free end of this horizontal frame is detachably fixed to the floor surface of the building through the connecting member, and the skeleton consisting of the vertical frame and the horizontal frame is placed through the lifting device in the detached state of this connecting member. This is done by a single operation of lifting the skeleton by disconnecting the connection between the horizontal frame and the floor surface, and the height of the vertical frame can be increased by this single lifting operation. It is possible to raise several layers at a time. Therefore, the work of raising the scaffold can be performed extremely easily and quickly.

Further, since the horizontal frame to which the scaffolding plate is attached projects from the vertical frame in a cantilever manner, the opening of the building is hindered in a state where the horizontal frame is fixed to the floor surface of the building. Without having to move between the building and the scaffolding, the work efficiency is greatly improved, and in addition, the construction period is shortened in combination with the speeding up work of the scaffolding. It has an excellent effect of being able to.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of an external scaffolding device for a building according to the present invention.

FIG. 2 is an exploded perspective view of a mounting portion of a horizontal frame showing an embodiment of the present invention.

FIG. 3 is a plan view in which a mounting portion of a horizontal frame showing an embodiment of the present invention is partially cross-sectioned.

FIG. 4 is an explanatory diagram showing a step of the detached state of the horizontal frame according to the embodiment of the present invention.

FIG. 5 is an explanatory diagram showing another process of removing the horizontal frame according to the embodiment of the present invention.

[Explanation of symbols]

10 External Scaffolding Device 12 Vertical Frame 14 Horizontal Frame 16 Scaffolding Board 18 Building 18a Opening 20 Floor 22 Angle Piece (Connecting Member) 28 Anchor Bolt

Claims (1)

[Claims] 1. A vertical frame having a height corresponding to a plurality of layers of a building having multiple floors and arranged along the outside of the building, and a vertical height interval of one layer in the vertical frame. Each of the base ends is attached, a plurality of horizontal frames that cantileverly project in the horizontal direction, respectively, a scaffolding plate attached to the horizontal frame, the free end of the horizontal frame, An external scaffolding device for a building, comprising: a connecting member that is detachably fixed to a floor surface; and a lifting device that vertically suspends a skeleton composed of the vertical frame and the horizontal frame.