JPH03415Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a mobile scaffolding device used for constructing internal holes in high-rise reinforced concrete structures such as high-rise bridge piers.

High-rise reinforced concrete structures such as high-rise bridge piers that have a rectangular cross-section often have holes formed inside, and require inner formwork. For this purpose, an internal scaffold is constructed and attached to the internal scaffold, the formwork is erected. And the internal scaffolding is
It is a structure that is normally lifted up by a crane after each stage of work such as concrete pouring and fixing, and the scaffolding equipment was required to be lightweight and simple. However, in high-altitude bridge piers, etc., the planar area of the internal hole inevitably becomes larger, and the scaffolding device has the disadvantage that the framework becomes larger, making the scaffolding device larger.

This idea consists of a fixed beam installed between opposing walls, a sleeper installed on the fixed beam, a track provided on the sleeper, and a movable scaffold equipped with casters that can move freely on the track. It is an object of the present invention to obviate the above-mentioned drawbacks by providing a mobile scaffolding device having the following.

Next, the configuration of this invention will be explained based on the embodiment drawings. 1 is a fixed beam, 2 is a sleeper, 3 is a track, and 4 is a fixed beam.
5 is a moving scaffold, and 5 is a suspended scaffold. A suitable number of fixed beams 1 are installed between inner walls 7 having a short distance among opposing inner walls forming an inner hole 6 such as a high bridge pier, and are fixed on anchor brackets 8 fixed to the inner walls 7. The sleepers 2 are fixedly installed on the fixed beam 1 at substantially right angles to the fixed beam 1. In this embodiment, there are three, but the number can be increased or decreased depending on the size of the internal hole 6, etc. The track 3 is fixed on the sleeper 2 substantially perpendicular to the installation direction of the sleeper 2, and has a groove formed on the upper surface. The length of the track 3 is suitably shorter than the distance between the inner walls 7, and stop plates 9 are provided at both ends of the groove. The movable scaffold 4 is configured into a rectangular parallelepiped frame by appropriately combining vertical frames 10 and horizontal frames 11, and the width thereof is configured to be narrower than the length of the track 3. In this embodiment, the length is approximately 1/2 of the length of the track 3. Reference numeral 12 denotes casters, which are composed of wheels 13 and a mounting table 14, and are provided in an appropriate number under the lower horizontal frame 11 of the movable scaffold 4, and are movably placed on the track 3.
15 is a stopper, bolt 16, nut 1
7 and a clamping plate 18, and the movable scaffold 4 and the track 3 are configured to be freely stopable. Hanging scaffold 5
is composed of a hanging pillar 19 and a scaffold board 20, and the hanging pillar 1
It is suspended from the fixed beam 1 by 9. 21 is a ladder. When moving the movable scaffold 4, the stopper 15 fixing the mounting base 14 of the caster 12 of the movable scaffold 4 and the track 3 is removed to enable the movable scaffold 4 to be moved onto the track 3. By pushing to the other end, the movable scaffold 4 can be moved from one inner wall 7 of the internal hole 6 to the other inner wall 7. The movable scaffold 4 that has moved toward the other inner wall 7 is fixed to the track 3 again by the stopper 15. At this time, the stopper 15 has a structure in which two bolts 16 are positioned outside the track 3 and are tightened between the hole in the mounting table 14 and the hole in the clamping plate 18 located below the track 3.

Since this invention has the above-mentioned configuration and function, it can be used in scaffolding equipment for internal holes in high-rise reinforced concrete structures such as high-rise bridge piers, to install, demold, and assemble reinforcing bars for the inner walls of the internal holes. The working scaffold can be made narrower than the width of its internal hole, which has the effect of making the entire scaffolding device extremely lightweight and simple. Further, since it is not necessary to provide the inner hole over the entire width, the work is reduced, the danger is reduced, and less materials are required, so it can be manufactured at a low cost.

[Brief explanation of drawings]

The drawings show an embodiment of this invention: Fig. 1 is a front view, Fig. 2 is a side view, Fig. 3 is a partially enlarged side view, and Fig. 4 is an arrow direction view of Fig. 3. . 1... Fixed beam, 2... Sleeper, 3... Track, 4...
...Movable scaffold, 5... Hanging scaffold, 6... Internal hole, 7...
...Inner wall, 8...Anchor bracket, 9...Stop plate, 10...Vertical frame, 11...Horizontal frame, 12...
Caster, 13...Wheel, 14...Placement stand, 1
5... Stopper, 16... Bolt, 17... Nut, 18... Clamping plate, 19... Hanging post, 20... Scaffolding board, 21... Ladder.

Claims (1)

[Scope of utility model registration request] A scaffolding device includes a fixed beam installed between opposing walls, a sleeper provided on the fixed beam, a track provided on the sleeper, and a movable scaffold equipped with casters that are movable on the track. A mobile scaffolding device comprising: