JPH0321568Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> This invention is used for frame scaffolding that is temporarily installed along the outer wall of a building, etc., and particularly ensures safety when the scaffolding is assembled. Regarding the side frame.

<Prior art> As shown in FIG.
are arranged in parallel at a predetermined interval, and cross braces 2, 2 are installed between adjacent ones to provide horizontal rigidity, and horizontal ground members 1a of the building frame,
Scaffolding boards 3 are stretched between 1a, and this is the lowest stage, and similar structural units are installed on top of this by connecting the building frames 1 and 1 to each other. Supports 4 are erected on the uppermost building frame 1, and handrails 5 are set.

<Problem to be solved by the invention> However, in the course of assembly or disassembly (reassembly) of such ordinary scaffolding, handrails are not provided to ensure the safety of workers standing on the scaffolding boards 3 of each tier. There was a problem in which they were forced to perform extremely dangerous work.

The side frame of the present invention is a scaffold component to solve the safety problem of frame scaffolds, and it has excellent functions as so-called braces and handrails in frame scaffolds, and has a simple structure. It is not only lightweight and convenient to handle, but also economical and extremely practical.

<Example> Hereinafter, the present invention will be explained in detail based on the drawings.

FIG. 1 is a front view showing the most preferred example of the side frame of the present invention.

In other words, the side frame of the present invention, as shown in the figure,
A triangular frame body 6 formed by a vertical member 6a, a horizontal member 6b extending horizontally from its upper end, and a stiffening member 6c diagonally connecting the ends of these two members.
and three mounting pieces 7, 7, 7 arranged near the three corners of the frame body.

All members constituting the frame body 6 are formed of round tubes, square tubes, etc. In the illustrated example, the vertical member 6a and the horizontal member 6b are continuously made of one material (round pipe material). The end of the horizontal member 6b is bent downward, and the stiffening member 6c is connected near the tip. The height h of the vertical member 6a is
Approximately half of the construction members 7b of the H-shaped building frame 7 to be described later, that is, the upper construction members 7 above the level of the scaffolding board 3
The width w of the horizontal member 6b is equal to the length of the horizontal member 6b.
(See Figure 2). Both ends of the stiffener 6c are joined by welding, and the entire triangular shape constitutes one rigid body.

The attachment pieces 11 are provided near each corner of the frame body 6 so as to project outward, and are attached by welding. This attachment piece 11 is to be attached to a locking pin 10 attached to a building material 7b of the building frame 7, which will be described later, and has a through hole 11a into which a pin body 10a of the locking pin 10 is fitted.

Note that the vertical member 6a and the horizontal member 6b may be made into separate parts and assembled by welding as shown in FIG. shall be.

FIG. 4 is a perspective view of a framework scaffolding showing an example of how the side frame of the present invention (indicated by reference numeral A) configured as described above is used. In the figure, indicates the scaffold structural unit at the lowest level, and the scaffold as a whole is constructed by stacking and installing the required number of similar structural units above the lowest level, as indicated by the symbols.

Each scaffold component unit consists of a required number of parallel building frames 7, scaffolding boards 3 installed between adjacent building frames, and a diagonal set diagonally between the same building frames 7, 7. Timber (functions as one of the braces)
8, and the side frame A of the present invention. The building frame 7 is an H-shaped frame, and is of a type in which a horizontal ground member 7a is provided approximately in the middle of a pair of building ground members 7b and 7c, and the scaffold board 3 is placed on this horizontal ground member 7a. Each of these construction members 7b and 7c includes
A locking pin 10 is attached. That is, they are provided in a total of four locations on each building material, near the upper and lower ends, directly above and directly below the mounting position of the horizontal material 7a, and all of these are shaped to protrude inside the frame itself. The locking pin 10 used includes an engaging piece 10b that projects from the side of the main body 10a by a spring or gravity.

The diagonal member 8 is attached to a locking pin 1 at a lower level of the scaffolding board 3 between the adjacent outer (anti-building side) building members 7b, 7b, at a different height between the two members.
It is installed diagonally using 0 and 10.

Now, the side frame A of the present invention has a scaffold board 3 directly above the diagonal member 8, that is, between the outer construction members 7b, 7b.
It is provided between the upper building members 7b' and 7b' above the level. That is, the three mounting pieces 11, 1 arranged at each corner of the triangular frame 6 of the side frame A
1 and 11, respectively, are the outer upper construction members 7b',
It is attached in a three-point supported manner in correspondence with the locking pin 10 attached to 7b'. Mounting piece 1 at each support point
1 and the locking pin 10 are connected through the through hole 1 of the mounting piece.
1a is fitted into the main body 10a of the locking pin, and the engaging piece 10b is used to prevent it from coming off. In this connection, the engaging piece 10b of the locking pin 10 is connected to the main body 10a.
It can be easily released by placing it inside and removing the retainer.

When the side frame A of the present invention is incorporated into the scaffold as described above, it functions as follows. In other words, the side frame A of each stage strengthens its own stage in the horizontal direction, making the whole structure sturdy as a result. Each side frame not only has the rigidity of the frame as a whole to resist the action of horizontal force on the scaffold, but also its stiffeners 6c are individually subjected to tension or compression, so-called braces. In this way, it contributes rationally and effectively to preventing deformation of scaffolding.

Further, in this state, the side frames A of each stage are devised so that the horizontal member 6b of the upper chord constitutes a handrail of an appropriate height. This function as a handrail is also exerted during the process of assembling the scaffolding, providing work safety. In other words, in the same way as in normal cases, the scaffolding is assembled upwards starting from the lower level, and dismantled downwards starting from the upper level. 3
This is done by standing on top and attaching and detaching the side frame 6 of the relevant tier, as well as the building frame 7 and diagonal members 8 of the tier immediately above. The work is carried out with the side frame A always on the stage being worked on, which guarantees the safety of the work. In this way, the side frame A of the present invention, especially when used in combination with the H-shaped building frame 7, solves the problem of safety in the work of assembling frame scaffolding.

The side frame A of the present invention is also erected above the third level of the scaffold board in each stage of the scaffold, and there is no need to install it above and below the same level.
It has good workability as a worker standing on the scaffolding board can easily attach and detach it in a comfortable position. In addition, using this method eliminates the need for a separate handrail, which is also advantageous in terms of assembly work.

Furthermore, although the side frame of the present invention has an extremely simple structure, it is extremely effective as a strength member against horizontal forces, and can guarantee sufficient strength for practical use while keeping the weight within an easy-to-handle range.

Furthermore, in terms of economy, which is an important issue in practical application, the supply cost is low because it has a small number of parts and has a simple configuration, so it can be manufactured at an extremely low cost.

As explained in detail above, the side frame of the present invention has the effect of eliminating the dangers of the work of demolishing framework scaffolding, has excellent workability and handling, and is highly reliable in terms of strength. In addition, it has economic merits, and its practical value is extremely large.

[Brief explanation of the drawing]

Fig. 1 is a front view showing a side frame according to one embodiment of the present invention, Figs. 2 and 3 are front views showing other embodiments of the present invention, and Fig. 4 is a frame to which the same upper side frame is applied. A perspective view of the scaffold, FIG. 5 is a perspective view schematically showing a conventional framework scaffold. In the diagram, 1... Gate-shaped building frame, 2... Cross brace, 3
...Scaffolding board, 4... Support, 5... Handrail, 6... Frame of the side frame of the present invention, 7... H-shaped building frame, 8... Diagonal material, 10... Locking pin, 11... ...Mounting piece.

Claims (1)

[Scope of utility model registration request] A right-angled triangular frame installed between the upper building members 7b' above the 3rd level of scaffolding boards of adjacent H-shaped building frames, and approximately equal in length to the upper building members of the H-shaped building frames. The vertical member 6a of the height and the adjacent H
The frame main body 6 is formed of a horizontal member 6b extending from the upper end of the vertical member and a stiffening member 6c diagonally connecting both ends of the vertical member and the horizontal member with a width that almost matches the parallel gap of the form frame. A side frame for a framed scaffold, characterized in that mounting pieces 11 connectable to locking pins 10 attached to an upper building member of an H-shaped building frame are arranged near three corners.