JP2551725B2 - Protective fence - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly relates to a protective fence for preventing scattering and falling during construction of middle- and high-rise buildings.

[0002]

2. Description of the Related Art Conventionally, in the case of constructing a building, an outer wall or a solid railing has not been attached to the building several times from the top floor at the time of construction. Therefore, in order to prevent accidents of scattering and dropping, a protective fence or protective net is attached to ensure safety.

Then, as the construction of the skeleton progresses, the work place moves to the upper floor, and the fence or net is moved to the upper floor or added.

[0004]

[Problems to be Solved by the Invention]

(1) In the conventional technology, the fence or net is generally fixed to the body or the like for each unit, and when relocating,
It requires a lot of work and is complicated.

(2) There is an example in which a fence or net is attached to another frame to form a large unit.
There is no guide etc. when relocating to the upper part, and especially in the case of high-rise buildings, the relocation work may be difficult due to the influence of the wind.

(3) For moving the fence or net, a tower crane is often used when a large unit is used, and the tower crane is restrained for a long time every time the fence or net is relocated. It may contribute to the delay of the process.

The present invention solves the above-mentioned problems caused by the conventional method, and provides a protective fence which can be moved safely without being affected by wind or the like and can be moved easily and in a short time as compared with the conventional method. The purpose is to do.

[0008]

According to the present invention, in a protective fence which is disposed on the outer periphery of a building during construction of a high-rise building to prevent scattering and falling, the protective fence is composed of a plurality of units. A unit, a fence, a fence retainer and a fence retainer base for selectively fixing the fence to a building, a shingling insect lifting device fixed to the fence, a guide engaged with the lifting device, and a lower end of the guide. Is constructed of a guide base metal fitting for selectively fixing the housing to the building, and a guide holder and a guide holder base material for selectively fixing the upper end of the guide to the building.

[0009]

[Operation] In the protective fence configured as described above,
To move the protective fence to the upper floor as the construction of the skeleton progresses and the work place moves to the upper floor, first fix the fence to the building and raise the guide by the lifting device, then move the guide to the upper floor. Fix it. Next, the fence is lifted by the lifting device using the guide that first fixed the fence to the upper floor, and fixed to the upper floor. To lower the protective fence, the lifting device is switched to the lowering operation, and the fence and the guide are lowered by performing the above operation.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

1 and 2 show a state in which a protective fence B is arranged around a building A under construction. The protection fence B is composed of a plurality of protection fence units indicated by reference numeral C, which are divided in the frontage direction of the building A. The unit C is roughly composed of a fence 1, a guide 5, and a scale-taker insect lifting device 20. In the figure, reference numeral 3 is a fence refrigerating piece, 4 is a fence refrigerating base metal piece, 7 is a guide refraining piece, and 8 is a guide refraining base metal piece.

In FIG. 2, the fence 1 of the fence unit C comprises a plurality of horizontal fence frames 2a-2c.
.. (hereinafter, referred to as reference numeral 2 when collectively referred to) is reinforced. The upper and lower sides of the frames 2a to 2c are also reinforced by a frame (not shown). In the fence frame 2a,
An elongate insect raising / lowering device, which is generally designated by 20, is provided.

A fence holding base metal fitting 4 is pivotally attached to the frame 2c, and the base metal fitting 4 is a floor F.
It is bolted to 3. Furthermore, in the frame 2a,
The upper end of the fence retainer 3 is pivotally attached, and the lower end of the fence retainer 3 is pivotally attached to the base metal 4.

A vertical rectangular tubular guide 5 is engaged with the lifting device 20. The lower end of the guide 5 is pivotally attached to the guide base metal 6 by a pin 6a, and the metal 6 is bolted to the floor F. Further, a guide retainer 7 is pivotally attached to the upper end portion of the guide 5, and the guide retainer 7 is pivotally attached to the guide retainer base hardware 8.
The guide retaining base hardware 8 is bolted to the upper floor F4 of the floor F3, for example.

In FIGS. 4 and 5, the shingled insect raising / lowering device 20 includes a pair of upper and lower ratchet units 21a and 21b.
(A reference numeral 21 will be used hereinafter for the generic name) and a hydraulic cylinder 29 connecting both sides of both units 21a and 21b, and the upper unit 21a is fixedly installed on the fence frame 2b (FIG. 3). . Reference numeral 5a is a rectangular lock hole formed in the guide 5.

In FIG. 6, a pair of claws 23 and 24 are pivotally attached to a main body 22 of the ratchet unit 21 by a shaft 25, and a plate formed in a groove formed in the shafts 25 and 25 substantially horizontally. The spring 26 is fitted.

On the other hand, on the center line of the main body 22, a long hole 27 is formed.
Is formed, and a pin 28 to which the leaf spring 26 is fixed is engaged with the elongated hole 27. And this pin 28
It is adapted to be moved up and down by an operation direction selection lever (not shown). Then, as shown in the drawing, when the pin 28 is moved downward in the direction of the arrow and the leaf spring 26 is deformed to be convex downward, the leaf spring 26 is urged and the end portions 23a, 24 of the claws 23, 24 are urged.
a is engaged with the lock hole 5a of the guide 5 and locks the guide 5, that is, the downward movement of the guide 5 is locked and the upward movement is allowed. In addition, when the leaf spring 26 is moved upward in the opposite direction and the leaf spring 26 is deformed to be convex upward, the fence 1 is locked,
That is, the downward movement of the fence is locked, and the upward movement is allowed. Therefore, both units 2
The pins 28 of 1a and 21b are moved downward, and the hydraulic cylinder 29,
When 29 is expanded / contracted, the guide 5 is lifted up against the elevating device 20 in a worm-like manner. On the contrary, the pin 28 is moved upward, and when the hydraulic cylinders 29, 29 are expanded / contracted, the elevating device 20 is moved relative to the gad 5.
That is, the fence 1 is raised. Next, a mode in which the fence 1 is relocated to the upper floor will be described with reference to FIGS. 7 to 12. It should be noted that this unit C is shown in FIG.
As shown in FIG. 5, the fence Fence 3 and the fence Fence base hardware 4 are also provided on the floor F1.

In FIG. 7, the pin 28 of the elevating device 20 is moved downward to lock the downward movement of the guide 5 as shown in FIG. 6 to allow the upward movement.

Next, the guide retainer 7 and the guide retainer base metal 8 are removed, the pin 6a (FIG. 3) is removed to free the guide 5, and the hydraulic cylinders 29, 29 are expanded and contracted to raise the guide 5 (FIG. 8). .

Therefore, the guide 5 is fixed to the upper floor F5 with the guide holder 7 and the base metal 8 (FIG. 9).

Next, the fence holder 3 and the fence holder base metal 4 are removed (FIG. 10).

Then, the pin 28 of the lifting device 20 is moved upward to lock the downward movement of the fence 1 to allow the upward movement, and the hydraulic cylinders 29, 29 are expanded and contracted first. The fence 1 is raised along the guide 5 fixed to the floor F5 (FIG. 11).

Finally, the fence 1 is fixed to the floors F4 and F1 by the fence retainer 7 and the base metal 8 (see FIG. 1).
2). When lowering the fence 1, the procedure is reversed.

In the above procedure, the guide copy 7
The guide retaining base metal 8 and the fence retaining 3 and the fence retaining base hardware 4 are removed, but the guide retaining base hardware 8 is removed from the floor F4, the fence retaining base hardware 4 is removed from the floors F3 and F1, and the guide retaining 7 and The base hardware 8 may be raised together with the guide 5, and the fence retainer 3 and the base hardware 4 may be raised together with the fence 1.

FIG. 13 shows an example in which the scaffold 30 is detachably attached to a position preferable for the work of the fence 1.

FIG. 14 shows a state in which the end form 31 can be attached in the case of RC, and when the column or beam goes out, the form of the outermost end face of the column or beam is attached. It can also be installed.

FIG. 15 shows an example in which the guide retainer 7 and the guide retainer base metal 8 are replaced with the guide top fixing hardware 32.

FIG. 16 shows an example in which the fence sill 3 and the fence sill 4 are replaced with a fence fixing sash 33 protruding from each floor F4, F5.

[0029]

According to the present invention, since the protective fence is composed of a plurality of units and the fence is moved up and down along the guide, it can be safely relocated without being affected by wind or the like. Further, the transfer can be completed easily and in a short time as compared with the conventional method. Furthermore, the tower crane is not restrained for relocation of the protective fence, and other work using the tower crane is not hindered.

[Brief description of drawings]

FIG. 1 is a side sectional view showing a state in which a protective fence is arranged around a building under construction.

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a perspective view showing a unit according to an embodiment of the present invention.

FIG. 4 is a front view showing a shakutori insect lifting device.

5 is a front view of FIG.

FIG. 6 is a front view showing a ratchet unit.

FIG. 7 is a side view showing an original state of the fence rising mode.

FIG. 8 is a side view showing a raised state of the guide.

FIG. 9 is a side view showing a state where the guide is fixed to the upper floor.

FIG. 10 is a side view showing a state where the fence retainer and the fence retainer base hardware are removed.

FIG. 11 is a side view showing a raised state of the fence.

FIG. 12 is a side view showing a state where the fence has been completely lifted to the upper floor.

FIG. 13 is a side view showing a scaffold provided on a fence.

FIG. 14 is a side view showing a gable form.

FIG. 15 is a side view showing a guide top fixing member.

FIG. 16 is a side view showing a fence fixing hardware.

[Explanation of symbols]

 A ... Building B ... Protective fence C ... Unit 1 ... Fence 2 ... Fence frame 3 ... Fence reserve 4 ... Fence reserve Base hardware 5 ... Guide 5a ... Lock hole 6 ... Guide base metal 6a ... Pin 7 ... Guide metal 8 ... Guide metal base metal 20 ... Shame-take insect type lifting device 21a, 21b ... Ratchet unit 22 ... Main body 23 , 24 ... Claw 25 ... Shaft 26 ... Leaf spring 27 ... Long hole 28 ... Pin 29 ... Hydraulic cylinder 30 ... Scaffold 31 ... Wife form 32 ... Guide top fixed hardware 33 ・ ・ ・ Fence fixed hardware

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shigeto Nakamura 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. (56) Reference JP 5-86734 (JP, A) 55-152250 (JP, U)

Claims (1)

(57) [Claims] Claim: What is claimed is: 1. A protective fence for preventing scattering and falling by arranging it on the outer periphery of a building during construction of a high-rise building, wherein the protective fence is composed of a plurality of units, and the unit is a fence and the fence is selective. A fence retainer and a fence retainer base fixed to the building, a shingling insect lifting device fixed to the fence, a guide engaged with the elevator device, and a guide base selectively fixing the lower end of the guide to the building. A protective fence comprising a hardware, a guide retainer for selectively fixing the upper end of the guide to the building, and a guide retainer base hardware.