JPH0417725Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a gate-shaped scaffold. The purpose is to provide a gate-shaped scaffold that can be carried through a narrow place such as a manhole without a split body that is divided in half and has only one side of the building site.

Conventional gate-shaped scaffolding consists of two parallel building blocks and a piece of fabric tied at one end. Generally, this scaffold is connected vertically and horizontally using joints and braces to assemble a framework scaffold. However, fabrics generally have a width of 610 mm to 1219 mm, making it impossible to transport them through narrow spaces such as manholes.

This idea was devised in view of the above circumstances. This will be explained below with reference to the embodiments shown in the drawings.

Fig. 1 shows a gate-shaped scaffold A made of steel pipes, which consists of two parallel building blocks 1, 1 and a fabric 2 connected at one end. This scaffold A is divided into two at the fabric 2, and the scaffold is constructed by connecting the divided fabric steel pipes 2a and 2b.

As shown in FIG. 2, the connecting ends of the steel pipes 2a and 2b are provided with a plate-shaped bracket 3 protruding from the outside of the end of one of the steel pipes 2a, on which a connecting fitting 4 having a U-shaped cross section rotates. They are pivotally mounted with the bracket 3 sandwiched between them. Further, a nut 5 is fixed to the U-shaped end face of the connecting fitting 4, and a presser bolt 6 is screwed thereto. On the other hand, a locking piece 8 with a locking claw 7 protruding from the tip is fixed to the end of the steel pipe 2b, and a connecting pin 9 whose one end is inserted and fixed into the steel pipe 2b is attached to the outside. It stands out.
A fitting hole into which the connecting pin 9 is fitted is provided in the tip of the steel pipe 2a.

Figure 3 shows a state in which two steel pipes 2a and 2b are connected, with a connecting pin 9 protruding from the end of the steel pipe 2b.
is fitted into the insertion hole of the steel pipe 2a, the bracket 3 and the locking piece 8 are aligned on the same plane, and the ends of the steel pipes 2a and 2b are butted together, and in this state, the connecting fitting 4 is rotated in the direction of the locking piece 8. A locking piece 2 is sandwiched in a groove having a U-shaped cross section in a connecting fitting 4, and a presser bolt 6 is screwed in, and its tip is pressed against the inside of a locking claw 7 of a locking piece 8.

This gate-shaped scaffold has the above-mentioned configuration, and the fabric 2 can be removed by loosening the bolt 6 of the connecting metal fitting 4, pulling out the connecting pin, dividing it into two parts, and attaching only one side to the building site. It can be used as a gate-shaped scaffold by bringing in fabric and connecting it with fabric.

In addition, since the connecting fitting and the locking piece are tightened and pressure-welded with bolts, there is no risk of the connecting pin loosening and coming off, resulting in high safety. Bolt tightening can be done easily even in narrow spaces, and the bolt can be attached to a nut fixed to a metal object. Since it is screwed on and can be tightened or loosened at any time, the workability of attaching and detaching the steel pipe is excellent, and troubles due to lost bolts do not occur.

[Brief explanation of the drawing]

FIG. 1 is a front view of the gate-shaped scaffold according to this invention, and FIGS. 2 and 3 are side views showing the structure and connection state of the connecting ends of the fabric. 1... Building site, 2... Fabric, 2a, 2b... Steel pipe, 3... Bracket, 4... Connecting fittings, 5...
Nut, 6... Bolt, 7... Locking pawl, 8... Locking piece, 9... Connecting pin.

Claims (1)

[Scope of utility model registration request] The fabric is divided into two approximately at the center, and a connecting pin is protruding from the end of the fabric steel pipe of one of the split bodies, and a fitting hole into which the pin fits is provided at the end of the fabric steel pipe of the other split body. It is a gate-shaped scaffold formed by fitting a pin and a fitting hole, and a bracket protruding outside one end of the fabric steel pipe has a U-shaped cross section with a presser bolt screwed into the tip. The connecting fitting is rotatably attached, and a locking piece is provided protruding from the outside of the other end. A gate-shaped scaffold characterized by a pressed piece.