JPS5940506Y2 - Scaffold board device with folding ramp - Google Patents

Description

[Detailed explanation of the idea] Generally, climbing stairs are installed and used on each lap as the lifting equipment for frame scaffolding, but when assembling and dismantling, one side may be removed due to the work procedure, and at that point In this case, the distance to the adjacent climbing stairs becomes longer, and workers may have to climb up and down the scaffolding by using the struts of the framework scaffolding instead of using the adjacent climbing stairs.
Accidents could occur.

This proposal was proposed in view of the above circumstances, and includes a frame body having a pair of main girders each having a pair of main girders at both ends that are attached to the opposite scaffold frame horizontal members in a frame scaffold. Scaffolding boards are set up with a section left in place, one end of the hatch for opening and closing the opening is rotatably attached to one end of both the main girders, and one end of the hatch for lifting and lowering is attached to the lower part of the hatch. The ramp is rotatably pivoted to one end side of both the main girders, and the other end of the ramp is removably locked to the lower part of the scaffolding board at the other end of the frame. The present invention relates to a scaffold board device with a folding gangway, which is intended to be used when assembling and dismantling frame scaffolding, and is equipped with auxiliary equipment that can ensure the safety of workers.

An object of the present invention is to provide an improved scaffolding board device. Since the present invention is constructed as described above, the hatch is normally rotated about the pivot point to one end of the pair of main girders to close the opening provided at one end of the frame. At the same time, the gangway is rotated about the pivot point to one end of the twin main girders, and the other end of the ramp is locked to the lower part of the scaffolding board at the other end of the frame. As a result, the gangway is horizontally folded and stored under the scaffold board and hatch, and the worker can run on the top of the scaffold board and hatch.

When the hatch is turned upward relative to the main girder of the frame to open the opening, and the other end of the ramp is engaged with the frame. The lock is released and the gangway is vertically rotated downward about the pivot point on one end of the main girder, and the worker ascends and descends through the opening and the gangway facing the opening. This is to prevent workers from ascending and descending along the struts of the framework scaffolding, resulting in unexpected disasters.

The present invention will now be described with reference to the illustrated embodiments.

A is a frame body that is constructed by connecting a pair of left and right square pipe main girders 1 with horizontal members 2 made of angle materials at predetermined intervals, and hook-shaped locking pieces are attached to the ends of each of the main girders 1. 3 is fitted and fixed to the main girder 1 together with a backing 4 via screws 5.

In addition, the locking piece 3 has a pin 6 protruding from the locking piece 3 that is slidably fitted into the slot 8 of the gripping pawl 7.
are attached, and by gripping and holding the horizontal members a of the framework scaffolding with the locking pieces 3 and the gripping claws 7, the frame body A is installed between the opposing horizontal members 8.

A scaffold board 9 is stretched over the frame A with an opening left at one end.

B opens and closes the opening, and is constructed by stretching a flat plate 12 onto a frame formed by connecting a pair of girder members 10 made of angle members with horizontal members 11 made of angle members. There is.

13 in the figure is a handle. At one end of each of the twin girders 10, there is a rotary shaft 14 made of a pipe, as shown in FIGS. 3 and 4.
Hatch B
is rotatably pivoted to the main girders 1, 1.

As shown in FIGS. 10 and 11, each main girder 1 is provided with a protruding stopper 16 for holding the hatch B in the opening closed position.

Also, as shown in FIGS. 7 to 9, the girder 1 of the hatch B
0 and the main girder 1 of the frame A, the base ends of the connecting rods 17 and 18 are respectively pivotally connected, and the opposing ends of both connecting rods 17 and 18 are also pivotally connected to the main girder 1 of the connecting rod 17. The stopper 19 is attached,
When the hatch B rotates upward, the stopper 19
7 to anchor the hatch B in the open opening position.

Furthermore, as shown in FIGS. 12 and 13, the main girder 1 is provided with stoppers 20 and 21 for supporting the connecting rod 18 and the pivoting parts of the connecting rods 17 and 18, respectively, when the opening is closed with the hatch B.
is attached.

C is a gangway, and square pipe horizontal members 23 are hung horizontally at predetermined intervals between the twin square pipe girders 22, and as shown in FIGS. 3 and 4, one end of each girder 22 is A fixed pipe rotating shaft 24 is attached to a pipe shaft 25 which is horizontally suspended between the two main girders 1 below the pivot point of the hatch B and on the fire direction side.
As shown in FIG. A pin 28 connected to the horizontal member 2 via a chain 27 is removably inserted, and the ramp C is normally folded horizontally under the scaffold board 9 of the frame A and the lower part of the hatch B. .

In the figure, 29 is a stay that is connected between the girder material 22 and the main girder 1 when the ramp C is deployed.One end is pivoted to the main girder 1, and the other end can be attached to and detached from the ramp C. .

Since the illustrated scaffold board device is constructed as described above,
When an auxiliary lifting device is required, when the hatch B is rotated upward about the pivot point to the main girder 1 as shown in FIG. It is anchored in the moving position, and the opening provided in the frame body A is opened.

On the other hand, the worker removes the pin 28 inserted between the girder 22 and the locking plate 26 of the gangway C, and rotates the ramp C downward about the pivot point to the main girder 1. The scaffolding frame can be raised and lowered via a ramp C that communicates with the opening and the gap.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing an embodiment of the folding ramp-equipped scaffolding board device according to the present invention, Fig. 2 is a side view thereof, and Figs. 3 and 4 are enlarged plan views of part (2) in Fig. 2, respectively. In addition, the enlarged longitudinal sectional side view, FIGS. 5 and 6 are enlarged detailed views of FIG. 7 and 8 are a side view and a plan view showing details of the hatch portion, respectively, FIG. 9 is a plan view of the continuous rod portion when it is extended, and FIGS. 10 and 11 are the portion X in FIG. 7. 12 and 13 are enlarged longitudinal sectional views and enlarged side views of FIG. 8, respectively.
Figures 1 and 15 are a plan view and a longitudinal sectional view of the hatch, respectively. A...Frame body, B...hatch, C...
...Ramp, a...Scaffolding frame horizontal material, 1...
...Main girder, 9...Scaffolding board. 10... Girder material of the hatch, 14... Rotating shaft of the hatch, 15... Axis of the main girder, 22...
・・Girder material for gangway, 24・・Rotating axis of ramp, 25・↓・Axis of main girder, 26・・Locking plate, 28・・・pin.

Claims (1)

[Scope of utility model registration request] A scaffolding plate is stretched over a frame body having a pair of main girders each having a pair of main girders at both ends that are equipped with attachment parts for the opposing scaffold frame horizontal members in a framed scaffold, leaving an opening on one end side, and one end of both main girders is attached. One end of the hatch for opening and closing the opening is rotatably attached to the lower part of the hatch, and one end of the elevating ramp is rotatably attached to one end of the main girders at the lower part of the hatch. A scaffolding board device with a folding ramp is characterized in that the other end of the ramp is removably locked to a lower part of the scaffolding board at the other end of the frame.