JPS58784B2 - Method for lifting and lowering construction materials using framework scaffolding - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a construction method for rationally lifting and lowering construction materials, etc. at a relatively small-scale construction work site,
In more detail, there is a crane installed on the scaffolding frame and a small loading platform that can be raised and lowered using the inside of the scaffolding framework.Relatively high-tension materials are lifted and lowered by the crane, and small materials are lifted and lowered by the crane. A hoisting machine is used to raise and lower a small cargo platform within a hanging frame scaffolding, and a single crane is skillfully used to raise and lower a small lift.
The purpose is to enable materials to be lifted and lowered in a rational manner.

BACKGROUND ART Conventionally, as is well known, construction cranes and various elevators have been installed at construction sites to lift and lower materials.

Various types of elevating and lowering transport devices are installed and used, ranging from large equipment to relatively small equipment, depending on the scale of the building and the conditions of the construction site.

However, at construction sites in narrow areas for urban redevelopment, and construction sites for relatively small high-rise buildings in the suburbs, there are significant restrictions on the equipment used due to the installation location of various construction equipment and construction costs. This causes many inconveniences in the work of lifting and lowering the materials, and the forced handling of the materials results in a lack of safety, which is inconvenient.

In view of the current situation, the present invention is suitable for construction work even in narrow spaces at work sites or in construction sites where ordinary lifting equipment cannot be installed to freely lift and lower materials. If you use a frame scaffold, which is almost essential, and install a small crane that can be installed on top of it, you can use this crane to lift relatively expensive materials such as steel frames, reinforcing bars, large equipment, etc. When carrying work into a building and not lifting or lowering it using this crane, the boom is positioned on the framework scaffolding, and using the scaffolding space adjacent to the crane installation position, the crane is placed in the scaffolding space in advance. A loading platform is arranged so that it can be raised and lowered along guide rails that are erected and supported by the framework, and the loading platform is raised and lowered within the framework scaffolding by operating a hoisting machine mounted on the crane using a hanging rope of a crane. They transported small materials, etc.

By doing this, no matter how bad the conditions at the work site are, as long as there is space to install the assembled frame scaffold around the construction site of the target building, all that is left to do is to select the location where the materials will be brought in, so that only this frame scaffold can be installed. Based on this, we can skillfully use a single crane to lift and lower general materials by operating a crane, and lift and transport them by operating a lift in a rational manner, which naturally reduces equipment installation costs. In particular, it can be adopted at small-scale construction sites to significantly enhance the effect.

Hereinafter, the present invention will be described in detail with reference to the drawings regarding one embodiment.
When a frame scaffold 1 of a well-known structure is assembled around the construction of a target building, horizontal members of a pair of adjacent vertical frames 2, 2 are placed on the top of the frame scaffold 1 at a location convenient for taking in materials for the building. Using the upper and lower tiers of 2' and 2', two supporting beams 3, 3' are installed in parallel between the horizontal members 2' and 2' of both vertical lines for each tier.
The lower end of the column 11 is fixed to the center of the lower support beam 3, and the middle portion of the column 11 is sandwiched between the upper support beams 3' to support and erect a post-type small crane 10.
The boom 12 of the crane 10 is configured such that its angle of elevation can be changed using a support rod 13, and when used as a crane, its turning radius becomes large as shown by the chain line in FIG. 1, and the lift 20 is operated. At times, the base end of the stay rod 13 is fixed to the bracket 14 at the top of the support column by changing the positions of the holes 15, 15' so that the stay rod 13 is used raised as shown by the solid line in the figure.

Therefore, when the crane 10 is lifting or lowering materials, etc., the boom 12 is tilted as described above and the swing drive motor 16 is driven to swing the boom 12 to a desired position, and the hoisting machine 17 mounted on the top is driven. The lifting rope 18 is operated to lift and lower materials within the swing range of the crane in a well-known manner.

Therefore, in one section 5 in the vertical direction of the scaffold framework adjacent to the crane 10 mounting position of the framework scaffold 1, there is a shaped steel with an appropriate cross section perpendicularly along the center part of the vertical frames 2, 2 on both sides forming the section. For example, a guide rail 21 made of angle iron is attached to the horizontal member of the frame body so as to face each other, and a loading platform 22 is arranged on this guide rail 21 with rollers 23 23 attached so as to be in symmetrical contact with each other at vertical positions. A suspension ring 26 is attached to the center of the upper beam 25 of the frame 24 of 22, and the hook 19 of the pulley block 19 that is raised and lowered by the suspension rope 18 of the crane 10 is hooked to the suspension ring 26.
A simple lift 20 is installed which can freely raise and lower a loading platform 22 along a guide rail 21 within a scaffolding framework section 5 by operating a winding machine 17 loaded with 0.

When the work of mainly transporting small items to the required floor occurs without lifting and lowering materials etc. using the crane described above, the boom 12 of the crane 10 is moved to the simple lift 20.
Pull up the hanging pulley block 19 to the uppermost position, remove the base end attachment pin 15a of the backing rod 13, and remove the winding machine 1.
The boom 12 can be pulled up by winding up the hanging rope 18 at the point 7, and when the boom 12 is in the raised position as shown by the solid line in FIG. The suspension pulley block 19 is positioned in advance at the center of the lift 20, and the hoisting machine 17 of the crane is then driven to extend the suspension rope 16, and the hook 19' is attached to the suspension ring 26 of the loading platform 22 located above the ground. If you hook it up, it will immediately function as a lift.
Therefore, the boom 12 of the crane 10 is positioned above the lift and its hoist 17 is driven, and small materials are loaded onto the loading platform 22 and raised and lowered to a required height for transport.

Note that this lifting operation is similar to crane operation, in which the operator vertically transports materials to the required floor while communicating with other related workers from an appropriately distant position.

When stopping the operation of the lift 20, the loading platform 22
on the ground, remove the hook 19 from the hanging ring 26, and remove the hanging rope 1.
By hoisting up the boom 8 and performing the operation opposite to the raising operation of the boom 12, it can be returned to its original state and used as a crane.

Of course, the boom 12 may be used as is after being raised to the lift operating state. In this case, although the turning radius becomes smaller, the lifting load can be increased, and it is possible to lift heavier items.

Note that the crane is not limited to the one described in the above embodiment, and may be a crane other than a post type crane as long as the crane can be fixed in a stable state on the scaffolding frame.

Furthermore, since the lift 20 moves up and down within the same section 5 of the framework scaffold 1, it also has the advantage that it is surrounded by diagonal materials etc. in this section so that safety during operation can be maintained.

According to the means of the present invention, it is possible to combine a lift consisting of a crane erected on a scaffolding frame and a loading platform that is raised and lowered by the hoisting machine of the crane by utilizing the inside of the scaffolding frame adjacent to the erected part. This makes it possible to intensively carry out lifting and lowering of materials with simple equipment by skillfully utilizing the framework scaffolding.
Therefore, if the work using a crane and the transport work using a lift are set in advance according to the work process, one hoisting machine can be fully used to carry out all the work of lifting and lowering materials, etc., which is relatively The lifting and lowering process at small-scale construction sites can be carried out extremely rationally, and the economic effects are enormous.

[Brief explanation of drawings]

FIG. 1 is a front view showing a specific example of the apparatus used to implement the construction method of the present invention, FIG. 2 is a plan view of FIG. 1, and FIG. 3 is a sectional view of the lift. 1... Frame scaffolding, 2... Vertical frame of scaffolding, 2'... Horizontal member, 3.3'... Crane support beam, 6... Lift installation section of frame scaffolding, 10. ...Small crane, 1
1... Strut, 12... Boom, 13... Retainer rod,
17... Winding machine, 18... Suspension rope, 19... Pulley block, 19'... Hook, 20... Lift, 21
... Guide rail, 22 ... Loading platform, 23 ... Guide rail, 24 ... Frame, 26 ... Suspension ring.

Claims (1)

[Claims] 1. Install a small crane supported by the scaffold frame at the top of the frame scaffold set up at the desired location at the intended construction site, and within the vertical space of the frame scaffold adjacent to the crane installation area,
A loading platform is arranged so as to be movable up and down along guide rails that are erected and supported by the scaffold component frame, and when the crane is not performing lifting or lowering operations, the boom of the crane is positioned above the loading platform. Lifting and lowering transportation of materials for construction work using framework scaffolding, characterized by lifting and lowering materials for construction work using frame scaffolding, characterized by lifting and lowering the loading platform in the space inside the scaffolding by operating a hoisting machine mounted on a crane using a hanging rope hanging from the boom. Method.