JPH0246596Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a fall prevention frame for temporary stairs, which is provided with a surrounding frame in the upper opening of the temporary stairs to prevent pedestrian workers from falling. .

[Problems to be solved by conventional techniques and ideas]

Conventional fall prevention enclosures are, for example,
This is disclosed in Publication No. 192352, etc.

However, this enclosure simply fixes the fixing fittings provided at the base of the horizontal bars of the L-shaped enclosure seen from a plane to the vertical members of the scaffold component, and the fixing fittings provided below the tips of the horizontal bars. The metal fittings are fixed to the horizontal members of the scaffold component near the entrance, and the fixing metal fittings provided at the lower ends of the supporting rods installed vertically near the L-shaped bent part of this enclosure are fixed to the horizontal members of the scaffold component. It is fixedly attached to the

Therefore, this enclosure could only be attached in a certain direction.

That is, this enclosure cannot be used in the opposite direction if the direction of the entrance of the temporary staircase is reversed, so two types of enclosure frames must be prepared. Therefore, it was difficult for both the user and the manufacturer, and it was not economical.

The present invention solves these drawbacks and provides a fall prevention frame for temporary stairs that allows only one type of enclosing frame to be used even if the direction of the entrance is reversed.

[Means to solve the problem]

The gist of the present invention will be explained with reference to the accompanying drawings.

Entrance/exit 2 of temporary stairs 1 formed on temporary scaffolding 4
In a fall prevention frame for temporary stairs, an L-shaped enclosure 3 is erected in a plan view on the front side a and the inside of the scaffold, which are opposite to each other, using scaffolding constituent members. Fixing fittings 6 for fixing to the vertical members 5 of the scaffolding constituent members are attached to the base ends of the lower crosspieces 3'' located on the outside of the scaffold, respectively, and a support pipe 7 is vertically attached near the L-shaped bent part of the surrounding frame 3. A plug-in opening 7' is formed at both upper and lower ends of the support pipe 7, and a plug-in rod 1 erected above the leg rod 8 is inserted into the opening 7'.
1 is removably inserted and the leg rod 8 is inserted into the support pipe 7.
This relates to a fall prevention frame for temporary stairs, characterized in that a fixing fitting 10 is provided at the lower end of the leg rod 8 to be fixed to a horizontal member 9 of a scaffold component.

[Effect]

As shown in FIG. 2, the proposed product (enclosing frame 3) in FIG. When fixed to the vertical member 5 and horizontal member 9 of the structural members,
The front side a of the enclosure 3 facing the entrance 2 of the temporary staircase 1
and the inside of the scaffold b in a vertical direction.

If the entrance 2 is oriented in the opposite direction to the entrance 2 shown in FIG.
After pulling it out further and inserting it into the opening 7' on the opposite side, turn the enclosure 3 vertically and attach the fixing fittings 6, 10 of the enclosure 3 to the vertical members 5 and horizontal members of the scaffolding components in the same way as in FIG. 9, the surrounding frame 3 is vertically attached to the front side a of the temporary staircase 1 facing the entrance 2 and the inside side b of the scaffold, as shown in FIG.

The fixtures 6, 10 in the drawings represent clamps.

The support pipe 7 in the drawing uses one pipe.

The leg rod 8 shown in the drawings has an insertion rod 11 erected at the top so that it can be inserted into any of the openings 7' at both the upper and lower ends of the support pipe 7 and can be pinned.

[Effect of idea]

Since the present invention is constructed as described above, the surrounding frame 3
can be attached as shown in FIG. 2, and even if the entrance 2 is oriented in the opposite direction to that shown in FIG. 2, as shown in FIG. When you pull it out and insert it into the opening 7' on the opposite side, turn the enclosure 3 vertically and attach it, the enclosure 3 will be attached to the temporary staircase 1 with the entrance 2 facing the opposite direction, as well as the front side a facing the entrance 2 and the inside of the scaffolding. b
can be installed correctly.

Therefore, the present invention is convenient and economical for both the manufacturer and the user, as the single type of enclosure 3 can be attached to the left-facing and right-facing elevators 2, and the installation of this enclosure 3 is also easy. Since it is fixed at two points, the bent side end and the corner, it exhibits excellent practical effects such as being firmly attached.

[Brief explanation of drawings]

FIG. 1 is a perspective view of the product, and FIGS. 2 and 3 are perspective views showing the product in use. a...front side, b...inside scaffolding, 1...temporary stairs, 2...exit, 3...enclosure, 3'...upper crosspiece,
3″... Lower crosspiece, 4... Temporary scaffolding, 5... Vertical member,
6, 10...Fixing metal fittings, 7...Support pipe, 7'
...Opening, 8...Leg rod, 9...Horizontal member.

Claims (1)

[Scope of utility model registration request] Entrance/exit 2 of temporary stairs 1 formed on temporary scaffolding 4
In a fall prevention frame for temporary stairs, an L-shaped enclosure 3 is erected in a plan view on the front side a and the inside side b of the scaffold, which are opposite to each other, using scaffolding constituent members. Fixing fittings 6 are attached to the base ends of the lower crosspieces 3'' located on the outside of the scaffold, respectively, to be fixed to the vertical members 5 of the scaffold components, and a support pipe 7 is vertically attached near the L-shaped bent part of the surrounding frame 3. A plug-in opening 7' is formed at both upper and lower ends of the support pipe 7, and a plug-in rod 1 erected above the leg rod 8 is inserted into the opening 7'.
1 is removably inserted into the support pipe 7, and a leg rod 8 is connected to the support pipe 7, and the lower end of the leg rod 8 is provided with a fixing fitting 10 for fixing it to a horizontal member 9 of a scaffold component. prevention frame.