JPH09268755A - Stile for protection of temporary scaffolding - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stile for protection capable of being simply assembled to a scaffolding and capable of improving the safety of an operator. SOLUTION: The stile for protection of a temporary scaffolding has a stile body 20 and two engaging metal fittings for engagement with brackets 2a for supports installed at both ends of the stile body 20. One engaging metal fitting 30 in the two engaging metal fittings has an engaging piece 32 capable of being retained to the upper section of the bracket 2a and a rocking piece 35, which is hung from the engaging piece 32 in a rockable manner and inserted and arranged into the through-hole 2b of the bracket 2a under the state, in which the engaging piece 32 is fastened to the upper section of the bracket 2a, and in which a hooked section 38 at a lower end is engaged at the lower end of the bracket 2a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a protection cross rail for a temporary scaffold which is assembled along the outer periphery of a building.

[0002]

2. Description of the Related Art As shown in FIG. 9, there is a wedge type temporary scaffold (1) assembled along the outer periphery of a building. In this temporary scaffold (1), a large number of pillars (2) are erected at predetermined intervals along the outer circumference of the building, and each pillar (2) extends along the length (height) direction. Predetermined interval (4
Every 75 mm), tubular receiving metal fittings (2a) are provided at four locations around the metal fittings. Further, a large number of scaffold plates (3) are spanned at predetermined intervals along the height direction between the adjacent columns (2), and the scaffold plates (3) and the scaffold plates (3) are alternately arranged in the vertical direction. In this way, many horizontal members (4) are bridged. As shown in FIG. 10, the horizontal members (4) are firmly connected by the wedge members (4a) at both ends thereof being driven into the receiving fittings (2a) of the support columns (2) and tightly connected.

In such a temporary scaffold (1), the vertical distance between the scaffold plates (3) for each step is set to about 1900 mm from the viewpoint of workability and the like, and the horizontal member (4) is used.
Will be placed at a height of 950 mm from each scaffolding plate (3). In this structure, when working in a standing position on the scaffolding plate (3), the horizontal member (4) is placed near the waist of the worker and functions well as a handrail for protection, but in a crouched position. When working, the horizontal member (4) is located above the worker and the outside of the worker is opened. Therefore, some kind of protective measure is taken, but in that case, generally, as shown by the imaginary line in the figure, between the scaffold plate (3) and the horizontal member (4) above it. It is customary to assemble the protective member (5) having the same structure as the horizontal member (4) by the same method as the horizontal member (5).

[0004]

By the way, in the wedge type temporary scaffold (1) as described above, the scaffold plate (3) and the horizontal member (4) as well as the support columns (2) are used as structural members. Therefore, while these are firmly connected to each other, the assembling error and the dimensional accuracy error of each member at that time are mainly absorbed by the bending of the column (2).

Under such circumstances, if the protection member (5) is further firmly fixed by tight binding between the scaffolding plate (3) and the horizontal member (4) as described above,
Since the scaffolding plate (3), the horizontal member (4) and the protection member (5) are assembled at a narrow pitch in the vertical direction, the column (2) cannot be bent until the above-mentioned error is absorbed, and the protection is achieved. It becomes difficult to assemble the member (5) and the like, and in some cases, it becomes impossible to assemble.

A horizontal member (4) is used as a protective member (5).
Since it has the same structure as the above, that is, the structural material is used, the weight becomes high and it becomes difficult to carry in and out, and the scaffold (1)
There is also a problem that it becomes more difficult to assemble the components.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems of the prior art and to provide a protection cross rail for a temporary scaffold which can be easily assembled to the scaffold and improve the safety of workers. To do.

[0008]

In order to achieve the above object, according to the present invention, a plurality of standing columns are arranged side by side in a horizontal direction at intervals and at predetermined height positions of the respective standing columns. A cross rail for protection of a temporary scaffold provided with a receiving metal fitting having a through hole extending vertically, and a cross rail main body having a length corresponding to a horizontal dimension between two predetermined standing columns, Two locking metal fittings provided at both ends of the horizontal rail body for locking the metal fittings are provided, and at least one of the two metal fittings is hooked on an upper portion of the metal fitting. And a lower end that is movably suspended by the latching piece and is inserted into the through hole of the receiving metal fitting in a state in which the latching piece is hooked on the upper part of the receiving metal fitting. The gist of the present invention is that the hook-shaped portion has a swinging piece that hooks on the lower end of the receiving metal fitting.

In the protection cross rail of the temporary scaffold of the present invention, since the metal fittings at both ends are hooked on the metal fittings of the support pillar, unlike the case where the metal fittings are firmly connected such as a tight binding, It is possible to assemble while easily absorbing some assembly error and dimensional accuracy error of each member.

Further, in the present invention, since at least one of the hooks is designed to hook the hook-shaped portion at the lower end of the swinging piece to the lower end of the hook, unintentional removal of the one-side hook can be prevented. As a result, it is possible to reliably prevent unintentional removal of the horizontal rail itself.

Further, since the protective cross rail of the present invention is not used as a scaffold structure material and does not require high rigidity, the weight can be reduced.

On the other hand, in the present invention, one of the two hooks has an upper piece and a lower piece, and the hook is hooked on the hook in a manner that the hook is fitted between the two pieces. Preferably, it is configured to That is, in that case,
One of the hooks can be hooked easily by simply fitting it on the receiving bracket.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION A protective cross rail (10) for a temporary scaffold, which is an embodiment of the present invention, will be described in detail below with reference to the drawings.

First, the temporary scaffold (1) to which the cross rail (10) of the present embodiment is applied will be described. As shown in FIG. 1, a large number of columns (2) are provided along the outer periphery of the building (H). ) Are erected at predetermined intervals. Similar to the above-mentioned conventional structure, the pillars (2) are provided with tubular receiving metal fittings (2a) at four peripheral positions at predetermined intervals (475 mm) along the height (length) direction. . The receiving fitting (2a) is arranged with its through hole oriented in the vertical direction.

Further, a large number of scaffolding plates (3) are bridged between adjacent columns (2) at intervals of 1900 mm along the height direction. In addition, a large number of horizontal members (4) are bridged between adjacent columns (2) at intervals of 950 mm in the height direction from the scaffolding plate (3) of each step. Horizontal material (4)
Is made of a metal pipe and is used not only as a protective handrail but also as a structural material as in the conventional case. Wedge members (not shown) at both ends are driven into the through holes of the support bracket (2a) of the support. It is firmly connected to the column (2) by being tightly connected.

On the other hand, between the scaffolding plate (3) and the horizontal member (4) on the scaffolding plate (3), the protective cross rail (1) peculiar to this embodiment is provided.
0) is provided.

As shown in FIGS. 2 and 3, the cross rail (10) has a length corresponding to the horizontal dimension between adjacent columns (2), specifically, a cross rail main body (1800 mm long). 20). The cross rail body (20) is made of a metal pipe having a smaller diameter than the horizontal member (4).
The weight per unit length is lighter than that.

At both ends of the cross rail main body (20), one side and the other side hooking metal fittings (30) (4) having different structures from each other are provided.
0) is provided.

As shown in FIGS. 2 to 6, the one side hooking metal fitting (30) includes a metal fitting body (30a) having a substantially inverted L shape.
And an oscillating piece (35).

The metal fitting body (30a) is the horizontal rail body (2).
0) an attachment piece (31) fixed to the end surface, and a hooking piece (32) integrally formed to extend laterally from the upper end of the attachment piece (31) (in the cross rail length direction). have.
The hooking piece (32) is provided with a rocking piece mounting hole (34) and a bending piece (33) extending downward at the tip.

The swinging piece (35) is provided with a wide operating portion (36) at its upper end, and a narrow portion (37) narrower than the operating portion (36) below the operating portion (36). Are arranged in series, and the narrow width portion (37) of the mounting piece (3
With the rocking piece mounting hole (34) of 1) inserted and arranged,
Since the operating part (36) is locked to the edge of the swing piece mounting hole (34), the swing piece (35) swings on the mounting piece (31) around the narrow portion (37) as a fulcrum. Suspended freely.

At the lower end of the swinging piece (35), there is provided a hook-shaped portion (38) bent so as to face the mounting piece (31).

In this configuration, as shown in FIG.
The scaffolding assembler operates the upper end operating portion (36) of the one-side locking metal fitting (30) with the finger of one hand holding the end portion of the cross rail (10) to move the swinging piece ( 35) can be freely swung against its own weight.

As shown in FIGS. 2, 7 and 8, the other side engaging metal fitting (40) is a mounting piece (41) fixed to the end face of the cross rail main body (20) and the mounting piece (41). ) Upper piece (42) having a bent piece (43) extending downward from the upper end, which is integrally formed so as to extend laterally (longitudinal beam length direction), and the lower end of the mounting piece (41). And a lower piece (45) integrally formed so as to extend laterally from.

The protective cross rail (10) of this embodiment having such a structure is attached to the scaffold (1) as described below.

First, on one of the two corresponding columns (1),
Assemble the metal fitting (40) on the other side of the cross rail (10).
That is, as shown in FIG. 7, the other side retaining metal fitting (40)
To the corresponding receiving metal fitting (2a) from diagonally above and insert the bent piece (43) at the tip of the upper piece (42) into the through hole (2b) of the receiving metal fitting (2a). The piece (42) is arranged so as to be hooked on the upper end of the metal fitting (2a).

The receiving metal fitting (2a) is arranged so as to be fitted between (42) and the lower piece (45).

Subsequently, as shown in FIG. 8, a hook metal fitting (40)
The cross rail (10) is rotated downward along the support column (1) with the fulcrum as a fulcrum. By this rotation operation, the lower piece (45) of the other side retaining metal fitting (40) is arranged along the lower end of the metal fitting (2a), and the metal fitting (2a) is placed between the upper piece (42) and the lower piece (45). ) Is engaged with the metal fitting (2a).

On the other hand, by utilizing the above-mentioned rotation operation, the one side latching metal fitting (30) is fitted with the receiving metal fitting (2) of the corresponding strut (2).
hang on a). That is, when performing the above-mentioned rotation operation, as shown by the imaginary line in FIG. 3, the swinging piece (3
5) By operating the upper end operation portion (36) of the rocking piece (35)
Is held so that the hook-shaped part (38) at the lower end thereof is spaced apart from the attachment piece (34), and the above-described rotation operation is performed in that state. As a result, as shown in FIG. 5, the swinging piece (35) is inserted into the through hole (2b) of the receiving metal fitting (2a) from above, and the hooking piece (32) is bent at its tip ( 33) is hooked on the upper end of the receiving metal fitting (2a) so that 33) is inserted into the through hole (2b).

After the hooking piece (32) is hooked in this way, the finger is removed from the upper end operating portion (36) of the rocking piece (35), and the rocking piece (35) is moved by its own weight as shown in FIG. The hook-shaped part (38) is swung to be hooked on the lower end of the metal fitting (2a).

This completes the work of hooking the one side hooking metal fitting (30), and the assembly of the cross rail (10) to the scaffold (1) is completed.

On the other hand, when removing the cross rail (10) from the scaffold (1), the reverse operation to the above may be performed. That is, the swinging piece (35) of the one-side hooking fitting (30) is swung by the operation of the upper end operating portion (36) of the hooking portion (3).
8) and the receiving metal fitting (2a) are released from each other, the horizontal rail (10) is rotated upward with the other side metal fitting (40) as a fulcrum so that the one metal fitting (30) is rotated. ) May be extracted from the receiving metal fitting (2a) to the upper side, and the other side retaining metal fitting (40) may be extracted from the receiving metal fitting (2a).

As described above, according to the protective cross rail (10) of the present embodiment, the hooking metal fittings (30) (40) at both ends are hooked on the receiving metal fitting (2a) of the column (2). Therefore, the horizontal rail (10) can be assembled as long as the latches (30) (40) can be latched to the bracket (2a). Therefore, unlike the conventional case where the protective member is assembled by tightening, the assembly can be easily carried out while absorbing some assembly error and dimensional accuracy error of each member without difficulty.

Further, when the hooking metal fittings (30) (40) are hooked on the receiving metal fittings (2a) of the column (2), the one side hooking metal fitting (30) is hooked on the rocking piece (35). Section (38)
Automatically engages with the lower end of the receiving metal fitting (2a), so that it is possible to reliably prevent unintentional removal of the one-side engaging metal fitting (30) and, in turn, unintentional removal of the horizontal rail (10). The function as a protective member can be sufficiently exerted, and the safety of the scaffolding operator can be further improved.

Further, since the cross rail (10) of the present embodiment is different from the scaffolding structural material, it does not require high rigidity as a structural material, and its weight can be reduced. For example, loading / unloading work can be facilitated. As a result, the assembling work can be performed more easily.

In the present invention, the other side retaining metal fitting (40) may have the same configuration as the one side retaining metal fitting (30).

Further, the present invention is not limited to the receiving metal fittings used in the above-mentioned embodiment, but can be applied to other types of receiving metal fittings. For example, the present invention can be applied to a receiving metal fitting having a width smaller than that of the above embodiment, a receiving metal fitting having a configuration in which a through hole is formed in a metal plate, and the like.

In the above embodiment, the case where the protection horizontal rail is used as the handrail has been described. However, the horizontal rail of the present invention is not limited to this, and the horizontal rail of the present invention can be used, for example, as shown in an imaginary line in FIG. It is also possible to use it as a protective frame for roof workers by assembling it on the upper end part of ().

[0039]

As described above, according to the protective cross rail of the temporary scaffold of the present invention, since the metal fittings at both ends are hooked on the metal fittings of the support pillars, they can be firmly fixed such as a binding. Unlike the case of connecting to, it is possible to assemble while easily absorbing some assembly error and dimensional accuracy error of each member, and the assembly work can be performed easily. Further, in the present invention,
At least one of the latches receives the hook-shaped part of the rocking piece and latches it at the lower end of the bracket.Therefore, unintentional detachment of the latch on one side and, in turn, inadvertent removal of the horizontal rail itself. The outside can be surely prevented, the function as a protection member can be sufficiently exerted, and the safety of the worker can be further improved. Further, the cross rail of the present invention is not used as a scaffold structure material and does not require high rigidity and the like, so that it is possible to reduce the weight and easily carry in and out work,
There is an effect that the assembling work can be performed more easily.

In the present invention, when one of the two hooks is configured to be hooked on the receiving metal fitting in such a manner that the receiving metal fitting is fitted between the upper and lower pieces, the one locking metal fitting is the receiving metal fitting. Since it can be hooked just by fitting it to the outside, there is an advantage that the assembling work can be further facilitated.

[Brief description of drawings]

FIG. 1 is a view showing a temporary scaffolding to which a protective cross rail according to an embodiment of the present invention is applied, FIG.
FIG. 2B is a front view.

FIG. 2 is a perspective view showing a protective cross rail of the embodiment.

FIG. 3 is a perspective view showing the vicinity of one side hook fitting in the protection bar of the embodiment.

FIG. 4 is a view showing the one side hooking metal fitting of the embodiment,
4A is a sectional view, and FIG. 4B is BB in FIG. 4A.
It is a line sectional view.

FIG. 5 is a side view showing a state immediately before the one side hooking metal fitting of the embodiment is hooked on the metal fitting.

FIG. 6 is a side view showing a state where one side locking metal fitting of the embodiment is hooked on the metal fitting.

FIG. 7 is a side view showing the other side locking metal fitting of the embodiment immediately before being locked to the metal fitting.

FIG. 8 is a side view showing a state in which the other side locking metal fitting of the embodiment is hooked on the metal fitting.

FIG. 9 is a perspective view showing a conventional temporary scaffold.

FIG. 10 is a perspective view showing the vicinity of a binding portion of a horizontal rail in a conventional temporary scaffold.

[Explanation of Codes] 1 ... Scaffold 2 ... Standing pillar 2a ... Receiving metal fitting 2b ... Through hole 10 ... Protective horizontal rail 20 ... Horizontal horizontal rail body 30 ... One side locking metal fitting 32 ... Locking piece 35 ... Oscillating piece 38 ... hook-shaped part 40 ... other side hooking metal fitting 42 ... upper piece 45 ... lower piece

Claims (2)

[Claims] 1. A plurality of standing pillars are arranged side by side in a horizontal direction at intervals, and a receiving metal member having a through hole extending vertically is provided at a predetermined height position of each standing pillar. A cross rail for protection of a temporary scaffold, which is a cross rail main body having a length corresponding to a horizontal dimension between two predetermined standing columns, and a receiving bracket provided at both ends of the cross rail main body. Two latches for latching are provided, and at least one of the two latches is a latching piece that can be latched on an upper part of the receiving metal, and swings on the latching piece. It is freely hung, and when the hooking piece is hooked on the upper part of the receiving metal fitting, it is inserted through the through hole of the receiving metal fitting, and the hook-shaped part at the lower end hooks on the lower end of the receiving metal fitting. A cross rail for protecting a temporary scaffold, which has an oscillating piece. 2. One of the two hooks has an upper piece and a lower piece, and is configured to be hooked on the receiving metal in such a manner that the receiving metal is fitted between the two pieces. The cross rail for protecting a temporary scaffold according to claim 1.