JPH10159323A - Temporary handrail of temporary scaffold and assembling and disassembling method of temporary scaffold - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a temporary handrail by which the falling accident of an operator is previously prevented from generating so as to execute assembling and disassembling of a temporary scaffold safely and smoothly, when a temporary scaffold built as the working scaffold for a construction work is assembled and disassembled. SOLUTION: This temporay handrail of the temporary scaffold A is provided with a plurality of erection rods 1 constituting pillars vertically connected together and standingly provided at regular intervals, and a plurality of connection rods 2 laid between the erection rods 1 and connecting together the pillars, so as to be assembled together. This temporary handrail of the temporary scaffold A is constituted of a lower frame body 8 and an upper frame body 9 fitted onto the lower frame body 8, and the lower frame body 8 is provided with a plurality of erection frame materials 8a vertically standingly provided along the erection rods 1, an intermediate frame material 8b laid between the erection frame materials 8a and connecting together them, a plurality of hooks 8c respectively projectingly provided on the side parts of the erection frame materials 8a and respectively hooked with the connection rods 2, and stoppers 8e fitted to the intermediate frame material 8b and fixing the hooks 8c to the connection rod 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a temporary scaffold which is mainly assembled as a work scaffold for construction work, and prevents an accidental fall of a worker before assembling and disassembling the temporary scaffold. The present invention relates to a temporary handrail of a temporary scaffold and a method of assembling and disassembling the temporary scaffold which can be performed smoothly.

[0002]

2. Description of the Related Art For construction work such as formwork and concrete work, a framed scaffold which is previously formed into a unit by, for example, processing a steel pipe into a gate shape in a factory, and is inserted and hooked up and down to assemble is widely used. (FIG. 8
reference).

[0003] Further, the present applicant has disclosed a plurality of built-up rods which are vertically connected to each other to form a support which is erected at predetermined intervals, and a plurality of built-up rods which are respectively bridged over the built-up rods to connect the supports together. A temporary scaffold was developed which has a connecting rod and a handrail which is bridged between the building rods like the connecting rod and has a handrail or the like to prevent an accidental fall of an operator (FIG. 9). reference).

However, when assembling or disassembling any temporary scaffold, there is no particular obstacle around the temporary scaffold. Therefore, it is necessary to prevent an accidental fall of workers during assembling and disassembling. There was a problem that it was necessary to attach, it was troublesome to attach and detach, and the assembly and disassembly of the temporary scaffold could not be performed smoothly.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and is intended to provide a temporary scaffold which can be easily attached and detached, so that the temporary scaffold can be assembled and disassembled safely and smoothly. An object of the present invention is to provide a method for assembling and disassembling a temporary handrail and a temporary scaffold.

[0006]

SUMMARY OF THE INVENTION A temporary railing of a temporary scaffold according to the present invention comprises: a plurality of rods which are vertically connected to each other to form a plurality of columns which are erected at predetermined intervals; A temporary handrail of a temporary scaffold assembled with a plurality of connecting rods each of which is bridged between the support rod and the support pillar, and which can be detached on the lower frame and the lower frame. And the lower frame is bridged between a plurality of building materials vertically erected along the building rod, and the building materials. The intermediate frame material that connects the building frame materials to each other, a plurality of hooks protruding from the side of the building frame material, and being hooked to the connecting rods, respectively, and the intermediate frame material. Attached, and the hook does not come off from the connecting rod. It is constituted by a stopper fixed to.

A method of assembling and disassembling a temporary scaffold according to the present invention includes a plurality of building rods which are vertically connected to each other to form a plurality of pillars which are erected at predetermined intervals, When assembling and disassembling a temporary scaffold including a plurality of connecting rods each of which is spanned between and connects the columns, the temporary handrail according to the preceding paragraph is attached around the temporary scaffold, and the temporary handrail is attached. Assembling and disassembling the temporary scaffold while transferring to the upper and lower directions.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1 of the Invention 1 to 4 show an embodiment of the present invention. In the drawings, reference symbol A is used not only as a work scaffolding but also as a support for supporting a formwork in concrete formwork construction or the like. Is a temporary scaffold that is also used, and is composed of a plurality of built-up rods 1 that are vertically connected to form a column 1a, and a plurality of connecting bars 2 that are bridged between the built-up bars 1 and 1 to connect the columns 1a to each other. And a plurality of braces 3 which are diagonally bridged between the pillars 1a and 1a to reinforce the temporary scaffold A
And connecting rods 4 and 5 for connecting the building rod 1 and the brace 3 to the building rod 1 and the connecting brace 3, respectively.

The temporary scaffold A thus constructed is used as a work scaffold by bridging a scaffold plate 6 between the connecting rods 2 and 2, and a flap 7 is hung on the upper end between the struts 1a and 1a. It is also used as a support to support concrete formwork (not shown) by handing over.

Reference numeral B is attached around the top of the temporary scaffold A during assembly and disassembly of the temporary scaffold A,
This is a temporary handrail that prevents an accident such as a worker falling down during the assembly and disassembly of the temporary scaffold A.

The temporary handrail B is composed of a lower frame 8 and an upper frame 9 installed at the upper end of the lower frame 8.

The lower frame 8 is composed of left and right rods 1,1 of the temporary scaffold A.
Left and right frame members 8a, 8 vertically set apart from each other by a predetermined distance
a, a lower frame member 8b and an intermediate frame member 8c for connecting the lower and middle portions of the left and right frame members 8a and 8a, respectively, and an inverted L-shaped projection to the upper end portion of the left and right frame member 8a. A hook 8d that is provided and hooked on the connecting rod 2 of the temporary scaffold A, and protrudes from the center of the intermediate frame member 8c, closes the lower end of the hook 8d, and fixes the hook 8d so as not to come off from the connecting rod 2. It has a stopper 8e and the like.

The lower end frame member 8b is made up of the right and left built rods 1,1 of the temporary scaffold A.
At the front end thereof, latching pieces 8f are provided, which are engaged with the connecting fittings 5 of the temporary scaffolding A and fix the lower end portions of the left and right frame members 8a, 8a via the lower end frame member 8b. I have.

The stopper 8e is rotatably mounted via a mounting pin 8h on a mounting frame 8g vertically suspended in a U-shape at the center of the intermediate frame member 8c. Can be closed and opened.

The upper frame 9 is made of the left and right frame members 8 of the lower frame 8.
It is erected vertically at the same interval as a and 8a.
a, 8a, the left and right frame members 9a, 9a erected at the upper end, and the lower frame member 9b and the upper frame member 9c connecting the lower and upper ends of the left and right frame members 9a, 9a, respectively. It is composed of The left and right ends of the upper frame member 9c are bent downward with a predetermined curvature, and are connected to the ends of the lower frame member 9b.

The upper frame 9 formed in this way is formed by connecting the lower ends of the left and right frame members 9a, 9a to the left and right frame members 8a, 8 of the lower frame 8.
a is connected to the upper end of the lower frame 6 so that it can be easily removed by inserting it into the upper end and fixing it with the connecting bolt 10.

Embodiment 2 of the Invention Next, a method of assembling and disassembling a temporary scaffold according to the present invention will be described (FIGS. 3, 4 and 5).
(See (a), (b)).

First, a plurality of building rods 1 are erected at predetermined intervals, and connecting rods 2 are bridged between upper end portions and lower end portions of the building rods 1, 1, respectively. Are connected to each other to assemble the _first stage A1 of the temporary scaffold A. The building rod 1 and the connecting rod 2 are connected by a connecting fitting 3.

Next, a temporary handrail B is attached around the _first stage A ₁ of the temporary scaffold A. In the temporary railing B, the hook 8d is hooked on the upper connecting rod 2, and the temporary railing B is dropped to a predetermined position while the locking pieces 8f, 8f at both ends of the lower end frame member 8b are respectively hooked on the connecting fitting 4. At this time, the stopper 8e is pushed up by the connecting rod 2 to rotate in the direction of arrow 11 around the mounting pin 8h, and when the stopper 8e comes off from the connecting rod 2, the stopper 8e automatically returns to the original position where the connecting rod 2 does not come off due to its own weight. By temporarily returning, the temporary handrail B is locked so as not to come off from the connecting rod 2.

Next, the temporary railing B is used as a handrail for preventing falling, and a second-stage A ₂ is assembled on the first-stage A ₁ .

After assembling the second stage A ₂ , the temporary handrail B is removed and transferred to the upper connecting rod 2 of the second stage A ₂ . In transferring the connecting rod 2 of the temporary railings B from connecting rod 2 of the first stage second stage A _2, arrows stopper 8e
Turn in the 11 direction to open the lower end of the hook 8d. And
Lift the temporary handrail B, connect the hook 8d and the hook 8f, remove them from the rod 2 and the connecting bracket 4, respectively, and leave the second hand A ₂
Transfer to the connecting rod 2.

[0022] Once you have transferred a temporary handrail B in the second stage A _2, assemble a three-stage A ₃ the second stage A ₂ to foothold. Hereinafter, the fourth stage and the fifth stage are similarly assembled to assemble the entire work scaffold A. The temporary railing B is removed when the assembly of the work platform A is completed. In addition, temporary scaffold A
In the dismantling of the temporary railing B, the temporary handrails B are sequentially transferred from the top to the bottom.

Embodiment 3 of the Invention FIG. 6 and FIG.
This shows another embodiment of the present invention, in particular, a stopper 8e is attached to each of left and right frame members 8a together with a hook 8d.

According to this embodiment, since the stoppers 8e are mounted at two locations, the temporary handrail can be securely mounted.

[0025]

The temporary handrail of the temporary scaffold according to the present invention has the above-described structure, and in particular, a plurality of temporary handrails projecting from the side of the frame member and respectively hooked to the connecting rod of the temporary scaffold. Since it is provided with a hook and a stopper attached to the intermediate frame member and fixing the hook to the connecting rod, attachment and detachment to and from the temporary scaffold during assembly and disassembly can be extremely easily performed. The temporary scaffold can be easily transferred and assembled and dismantled very smoothly.

Also, a plurality of building frames vertically erected along the building rods of the temporary scaffold, and the building frames are bridged between the building frames to connect the building frames to each other. Intermediate frame material, and a plurality of hooks respectively protruding from the side of the building frame material and hooked on the connecting rod,
Since it is configured to include a stopper attached to the intermediate frame material and fixing the hook to the connecting rod,
Since the configuration is extremely simple, it can be manufactured easily and at low cost.

Furthermore, since it is composed of the lower frame and the upper frame which is detachably attached to the upper end of the lower frame, it is easy to handle without being bulky during storage or transportation. is there.

In the method for assembling and disassembling a temporary scaffold according to the present invention, a temporary handrail is attached around the temporary scaffold, and the temporary handrail is moved upward and downward when assembling and disassembling the temporary scaffold. Since the temporary scaffold is assembled and dismantled while being transferred, the temporary scaffold can be assembled and disassembled extremely safely and smoothly.

[Brief description of the drawings]

FIG. 1 (a) is a front view of a temporary railing, and FIG. 1 (b) is a side view thereof.

FIG. 2 is a partially enlarged side view of FIG. 1 (a).

FIG. 3 is a sectional view taken along the line II in FIG.

FIG. 4 is a perspective view of a temporary scaffold.

FIGS. 5A and 5B are partial side views showing a method of assembling a temporary scaffold.

FIG. 6 (a) is a front view of a temporary railing, and FIG. 6 (b) is a side view thereof.

FIG. 7A is an enlarged sectional view of a part B in FIG. 6A, FIG.
FIG. 7 is a sectional view taken along the line C-A in FIG.

FIG. 8 is a front view showing an example of a temporary scaffold.

FIG. 9 is a perspective view showing an example of a temporary scaffold.

[Explanation of symbols]

1 ... built rod, 1a ... prop, 2 ... connecting rod, 3 ... brace, 4,
5 ... connecting bracket, 6 ... scaffold plate, 7 ... flap, 8 ... lower frame, 9 ... upper frame, 8a ... building frame, 8b ... lower frame, 8c ...
Intermediate frame material, 8d… Hook, 8e… Stopper, 8f… Hanging piece,
8g: Mounting frame, 8h: Mounting pin, 9a: Building frame material, 9b: Lower frame material, 9c: Upper frame material, 10: Connecting bolt, 11: Arrow, 12: Arrow, A: Temporary scaffold, B: Temporary handrail .

Claims (2)

[Claims] 1. A plurality of building rods which are vertically connected to form a support which is erected at predetermined intervals, and each of which is spanned between the support rods to connect the supports. In a temporary handrail installed on a temporary scaffold assembled with a plurality of connecting rods, the lower frame comprises a lower frame and an upper frame detachably mounted on the lower frame. A plurality of building frame materials vertically erected along the building rod, an intermediate frame material that is bridged between the building frame materials and the building frame material and connects the building frame materials to each other; A plurality of hooks respectively protruding from side portions of the building frame material and hooked to the connecting rods, and stoppers attached to the intermediate frame material and fixing the hooks to the connecting rods. Temporary hand of temporary scaffold characterized by becoming Ground. 2. A plurality of building rods, which are vertically connected to form a support that is erected at predetermined intervals, and each of the support rods is bridged between the support rods to connect the support pillars. In a method for assembling and disassembling a temporary scaffold comprising a plurality of connecting rods and comprising a plurality of steps, the temporary handrail according to claim 1 is attached around said temporary scaffold, and said temporary handrail is moved upward and downward. A method for assembling and disassembling a temporary scaffold, wherein the temporary scaffold is assembled and dismantled while being transferred downward.