JPH057306B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to a scaffolding device for use in an elevator hoistway.

[Conventional technology]

In elevators, in order to work on the deflection wheels in the machine room and equipment around entrances and exits, a scaffolding system is installed in the hoistway, on which workers work. Conventionally, as a hoistway scaffolding device, one shown in Japanese Patent Publication No. 12793/1983 has been proposed, but this consists of a fixed body that is tightened and fixed to each of the car guide rails, and a fixed body that is fixed to each of the car guide rails. Support arms are provided that extend perpendicularly to the guide rail, and a scaffolding board is bridged between these support arms.

[Problem that the invention seeks to solve]

However, with such conventional methods,
If the bolts that secure the fixed body to the guide rail come loose due to insufficient tightening, there is an extremely serious danger that the scaffolding device will fall and the workers working on it will also fall. There is.

The object of the present invention has been made in view of the above-mentioned actual situation in the prior art, and the object of the present invention is to provide highly safe lifting and lowering in which the scaffolding device will not fall even if the fastening part of the fixed body becomes loose. An object of the present invention is to provide an on-road scaffolding device.

[Means for solving problems]

In order to achieve this object, the present invention provides a structure in which a fixed body is tightened and fixed to each of a pair of car guide rails that are erected facing each other in a hoistway, and a fixed body is attached to the fixed body at right angles to the guide rails. In an in-hoistway scaffolding device in which support arms extending in the direction are provided and a scaffold board is bridged between these support arms,
Clamping fittings are fixed to each of the guide rails at a position above the fixed body, and each of the clamping fittings is provided with a hanging body whose one end is connected to the support arm, and a handrail is provided above the support arm. and the fixed body includes a U-shaped main body, a rail clip that fixes the main body to the guide rail, and a support fixture that fits with the main body and supports the support arm. There is.

[Effect]

Since the present invention is configured as described above, the support arm is fixed to the car guide rail by the fixed body, and is also fixed to the car guide rail via the suspension body by a tightening fitting separately fixed to the car guide rail. Supported. Therefore, even if the fastening part of the fixed body becomes loose, the support arm will be supported by the fastening metal fittings, so the scaffolding device will not fall, making it highly safe. . Further, by providing a handrail above the support arm, the work of the worker on the scaffolding board can be made safer. Furthermore, since the stationary body has a U-shaped main body that fits into each other so as to sandwich the guide rail, and a support fixture, the portion that protrudes to the outside of the guide rail is approximately the thickness of the main body of the stationary body. The installation area in the hoistway can be kept to a minimum.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS The in-hoistway scaffolding device of the present invention will be described below with reference to the drawings. The first is a perspective view showing one embodiment of the hoistway scaffolding device of the present invention, and the second is an explanatory view of the fixed body shown in FIG. 1.

In these figures, reference numeral 1 denotes a hoistway, and within the hoistway 1, a pair of guide rails 2 for guiding the raising and lowering of a car (not shown) are erected to face each other. Reference numeral 3 denotes a fixed body that is tightened and fixed to the pair of guide rails 2. As shown in FIG. 3b, and a support fixture 3c that fits into the main body 3a. Reference numeral 4 denotes a support arm extending perpendicularly to the guide rail 2. The support arm 4 is provided on each guide rail 2 so as to face each other, and is fixed to the upper surface of the fixed body 3 by a U bolt 11.

Reference numeral 5 denotes connectors bridged between opposing ends of each of these support arms 4, and these connectors 5 are fixed by clamps 6. After constructing a framework with the support arms 4 and connectors 5 in this way, a scaffold board 7 is bridged between the opposing support arms 4, and both ends of the scaffold board 7 are secured to the support arms 4 with fixing devices such as rubber bands 8. Fixed to. Also,
Reference numeral 9 denotes a fastening fitting fixed to each of the guide rails 2 at a position above the fixed body 3, and each of these fastening fittings 9 is provided with a suspension body, for example, a chain 10, which is connected at one end. There is.

Further, reference numeral 12 denotes a handrail column fixed to both ends of the connector 5 by clamps 6 and provided in a vertical direction;
Reference numeral 13 denotes a handrail, which is fixed to the upper end of the handrail post 12 by a clamp 6, and each handrail 13 is provided parallel to the support arm 4 and the connector 5.

In this embodiment, the support arm 4 is fixed to the guide rail 2 by a fixed body 3, and
The tightening fittings 9 fixed to the guide rail 2 allow
It is supported via a chain 10, a connector 5, and a clamp 6. Since the scaffolding board 7 is bridged between the supporting arms 4 mounted in this way and provided facing each other, the worker can ride on this scaffolding board 7 and move inside the machine room above the hoistway 1. It is possible to replace deflection wheels and work around entrances and exits.

In the embodiment configured in this way, in the unlikely event that
Even if the fastening portion of the fixed body 3 becomes loose, the support arm 4 is supported by the fastening fittings 9, so the scaffolding board 7 will not fall, making it possible to provide a highly safe scaffolding device.

Note that the handrail 13 provided above and parallel to the support arm 4 and the connector 5 can make the work of the worker on the scaffold board 7 safer.

〔Effect of the invention〕

According to the present invention, even if the fastening portion of the fixed body should become loose, the support arm is supported by the fastening fitting that is fixed to the car guide rail separately from the fixed body. This has the effect of preventing scaffolding boards from falling and improving safety. In addition, by providing handrails, the work of workers on the scaffolding boards can be made safer, and the fixed body
Since it has a U-shaped main body and a support fixture that fits into this main body, the part that protrudes outside of the guide rail can be kept to the same thickness as the main body of this fixture, and it can be installed in a hoistway. The area can be kept to a minimum.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the hoistway scaffolding device of the present invention, and FIG. 2 is an explanatory view of the fixed body shown in FIG. 1. 1...Hoistway, 2...Guide rail, 3...Fixed body, 3a...Main body, 3b...Rail clip,
3c...Support fixture, 4...Support arm, 7...
Scaffold board, 9... tightening metal fittings, 10... chain (suspension body), 13... handrail.

Claims (1)

[Claims] 1. A fixed body is tightened and fixed to each of a pair of car guide rails that are erected facing each other in an elevator hoistway, and a support arm that extends perpendicularly to the guide rails is attached to this fixed body. In the hoistway scaffolding device in which a scaffold plate is provided as a bridge between these support arms, a tightening fitting is fixed to each of the guide rails at a position above the fixed body,
The fastening fitting includes a hanging body whose one end is connected to the support arm, a handrail is provided above the support arm, and the fixing body includes a U-shaped body and a U-shaped body that connects the body to the guide rail. 1. A hoistway scaffolding device comprising: a rail clip that is fixed to the main body; and a support fixture that fits into the main body and supports the support arm.