JPH11200613A - Brace for framed scaffold with handrail - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a brace for a framed scaffold with a handrail, excellent in installation workability and capable of effectively preventing the falling of workers. SOLUTION: A brace has a pair of bracing main materials 2, 3 connected to each other almost at the center with a connecting pin 4 to be mutually rotationally movable, an upper side handrail member 5 with one end 51 connected to one end of one bracing main material 2 with a pin P1 to be rotationally movable, and a slidable pipe 6 connected to the other end 52 of the upper side handrail member 5 to be oscillatable and loosely inserted into the other bracing main material 3 to be slidable. The slidable pipe 6 is slid along the bracing main material 3 by opening the bracing main materials 2, 3 to horizontally arrange and fix the upper side handrail member 5 to an opening space between the bracing main materials 2, 3 in the condition that the bracing main materials 2, 3 are secured to standards K1, K2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a handrail for a scaffold with a handrail, which has a function of preventing a worker from falling off the scaffold.

[0002]

2. Description of the Related Art At various construction sites, framework scaffolds are temporarily used. A conventional scaffold of this type is a scaffold in which steel pipes are assembled into a fixed frame shape.For example, a building frame is erected via a base metal on a floor plate laid on a work floor, and these building frames are formed. Are assembled by connecting them with a cloth frame, a streak or the like.

[0003]

By the way, in the conventional mounting structure of a framed scaffold to a building frame in a framed scaffold, two braces are crossed between a pair of building frames in an X-shape to reinforce the framed scaffold. Fixed.

[0004] Therefore, since an opening space is formed above and below two streaks crossing in an X shape, according to the conventional framework scaffold, there is a possibility that an operator may fall down accidentally from these opening spaces. In many cases, a worker accidentally falls down from the opening space below when crouching.

[0005] In order to prevent such an accident, when the hook of the safety belt is hooked on these staggers, the hook of the safety belt slides down along the stairs attached diagonally, and the streaks of the stairs are separated. At the intersection or the like, the function of the rope of the safety belt is restricted, which causes a problem that a worker's work on the framework scaffold is hindered.

[0006] Further, since the two staggers are both installed obliquely, it is difficult for the worker to immediately grasp any of the streaks when the worker is about to fall out of the opening space, and eventually falls. There is another problem that there is a high possibility that the data will be lost.

[0007] It is therefore an object of the present invention to provide a framed scaffolding with handrails which can solve the above-mentioned problems in the bracing used in the conventional framework scaffold.

[0008]

In order to solve the above-mentioned problems, according to the first aspect of the present invention, a pair of bracing main members rotatably connected to each other at a substantially central portion are provided. A handrail member having one end rotatably connected to one end of one of the main bracing members, and the pair of bracing main members rotatably connected to the other end of the handrail member; And a slide pipe member slidably and slidably inserted into the other main member of the bracing.

[0009] When the pair of bracing members are opened so as to be separated from each other by pivoting about the connecting portion at the center thereof, the slide vip member slides on the other bracing member, and the handrail member is moved. The other end is positioned on the other bracing main member at a position corresponding to the open / close state of the pair of bracing main members. Therefore,
When the pair of bracing members is opened in an X-shape and fixed to the building frame by appropriately determining the connection position of one of the bracing members with one end of the handrail member, the handrail member is set to a substantially horizontal state. be able to.

According to the second aspect of the present invention, there is further provided a handrail framed scaffolding scaffolding which is provided with another handrailing member and a slide pipe member on the other end side of the pair of bracing main members in the same manner. Suggest.

According to the configuration of the second aspect of the invention, when the pair of bracing members are opened in an X-shape, the handrail members are disposed vertically above and below the connecting portion of the pair of bracing members. The openings formed above and below the pair of main bracing members can be fitted with corresponding handrail members.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a plan view showing an embodiment of a framed scaffolding with handrails according to the present invention, and FIG. 2 shows a state in which the framed scaffolding with handrails shown in FIG. 1 is attached to a building frame. FIG.

A strut 1 shown in FIG. 1 has two equal length struts 2 and 3 made of a metal pipe such as iron or aluminum, and has a pair of strut main materials. 2,
Numerals 3 are rotatably connected to each other at a central portion by connecting pins 4. The main bracing members 2 and 3 are shown in FIG.
, A pair of building frames K forming a framework scaffold
1, K2 are attached as cross streaks, and mounting ends 2A, 2B, 3A, 3B for mounting to the building frames K1, K2 are provided at both ends of the main bracing members 2, 3, respectively.

For the purpose of forming a handrail between one end 21 of one main bracing member 2 and one end 31 of the other main braiding member 3,
One end 51 of the upper handrail member 5 is pin-joined to the one end portion 21 or an appropriate portion in the vicinity thereof so as to be rotatable by the pin P1, and the other end portion 52 of the upper handrail member 5 is At one end 31 side of the member 3, it is swingably joined to the slide pipe 6 loosely inserted into the main bracing member 3 by known appropriate means. In this embodiment, as can be seen from FIG. 2, the other end 52 of the upper handrail member 5 is pin-joined to an ear 61 fixed outside the slide pipe 6, whereby the other end of the upper handrail member 5 is connected. 52 and the slide pipe 6 are swingably joined.

On the other hand, the lower handrail member 7 and the slide pipe are also provided between the other end 22 of the main bracing member 2 and the other end 32 of the main bracing member 3 for the purpose of similarly forming a handrail. 8 are provided in the same manner as the upper handrail member 5 and the slide pipe 6. That is, one end 71 of the lower handrail member 7 is pin-joined to the other end 22 or its vicinity by the pin P2, and the other end 72 of the lower handrail member 7 is connected to the other end 32 of the bracing main member 3. And is slidably joined to an ear 81 of a slide pipe 8 which is slidably and slidably inserted into the bracing main member 3.

Therefore, in the state shown in FIG. 1, the main bracing members 2, 3 are moved in the directions indicated by arrows A to D such that both ends of the main bracing member 2 are separated from the corresponding ends of the main bracing member 3. When the opening operation is performed, the slide pipes 6 and 8 slide on the bracing main member 3 in the directions indicated by arrows E and F, respectively.
The other end 52 of the lower handrail member 7 and the other end 72 of the lower handrail member 7 are moved so as to be brought to a predetermined position.
Handrails by upper and lower handrail members 5, 7 can be formed above and below between them (see FIG. 2).

In the illustrated embodiment, the upper handrail member 5 is made of an iron pipe member approximately half as long as the main bracing members 2 and 3, and one end 51 of the upper handrail member 5 has a braid. One end 21 of the main member 2 is pin-joined to a position slightly central from the corresponding mounting hole 2A, and the angle θ between the bracing main members 2 and 3 is necessary for mounting the bracing 1 to the building frame. Value θ
A (the state shown in FIG. 2), the distance from the mounting hole 2A to the pin P1 is substantially equal to the distance from the mounting hole 3A to the slide pipe 6, and the distance from the mounting hole 2B to the pin P2. And the distance between the mounting hole 3B and the slide pipe 8 are substantially the same.

Therefore, as shown in FIG. 2, when fixing the streak 1 shown in FIG. 1 between a pair of building frames K1 and K2 for forming a framework scaffold provided with the work floor F, Open the mounting holes 2A, 2B and 3A of the strut 1
When the required screwing is performed by making the corresponding 3B correspond to the corresponding mounting holes (not shown) of the building frames K1 and K2, the upper and lower handrail members 5 and 7 are fixed to the pin 4 between the bracing main members 2 and 3.
Are positioned in parallel and horizontally with a predetermined interval above and below with respect to and can function as a handrail.

When the stagger 1 described above is not used, as shown in FIG. 1, when the angle .theta. Is set to be substantially zero, the angle 1 becomes compact, which is very convenient for storage and transportation. Then, when used, as described above, both ends of the main bracing members 2 and 3 are opened in the directions indicated by arrows A to D, and the mounting holes 2A, 2B and 3A, 3A, 3
By simply fixing the bracing 1 to the slide-type lock pins provided in advance on the building frames K1 and K2 using B, the slide pipes 6 and 8 are provided with a fixing means particularly at a predetermined location on the bracing main member 3. The upper and lower handrail members 5 and 7 are fixed at a predetermined position between the main bracing members 2 and 3 while maintaining a substantially horizontal state without using them. Therefore, construction is extremely simple, there is no need for extra steps for attaching the handrail, and there is no impairment of workability,
It does not increase the temporary construction cost of the framework scaffold.

Thus, the upper and lower handrail members 5, 7
Can be easily fixed to the upper and lower portions of the pair of bracing main members 2 and 3 as shown in FIG.
The wide opening formed above and below the work floor can be narrowed by this, so that the worker can bend down on the work floor F or work while standing, and in any case, fall of the worker. It can be effectively prevented. In addition, since the upper and lower handrail members 5 and 7 can be provided substantially horizontally between the main bracing members 2 and 3, the operator can easily operate the upper handrail member 5 or the lower handrail member 7 even in an emergency. , And the hook of the safety belt can be gripped by the upper and lower handrail members 5,
By multiplying by 7, the function can be fully utilized.

[0022]

According to the present invention, as described above, the handrail by the handrail member is already set at the stage where the framed scaffolding is installed, so that the workability of the assembly is extremely excellent, The opening space can be reduced, and the fall of the worker can be prevented.

The handrail portion constructed as described above can be provided horizontally, so that the operator can easily grasp the handrail member in an emergency and fully utilize the function of the hook of the safety belt. be able to. Therefore, the work efficiency of the worker can be increased.

Furthermore, if two handrail members are provided corresponding to the upper and lower spaces of the streaks, the fall of the worker can be more reliably prevented.

[Brief description of the drawings]

FIG. 1 is a plan view showing an example of an embodiment of a bracing with scaffolding with handrails according to the present invention.

FIG. 2 is a view showing a state in which the frame for scaffolding with handrail shown in FIG. 1 is attached to a building frame.

[Explanation of symbols]

 DESCRIPTION OF REFERENCE NUMERALS 1 streak 2, 3 streak main material 4 connection pin 5 upper handrail member 6, 8 slide pipe 7 lower handrail member P1, P2 pin

Claims (2)

[Claims] 1. A pair of main bracing members rotatably connected to each other at a substantially central portion, and one end of one of the main bracing members of the pair of main bracing members is pivoted at one end. A handrail member freely connected to the handrail member, and a slide pipe member slidably connected to the other end of the handrail member and slidably inserted into the other main member of the pair of main members. A handrail for a framed scaffolding with handrails, comprising: 2. A pair of a handrail member and a slide pipe member are provided on each of the other ends of the pair of bracing main members.
Brackets with handrails as described.