JPH05500B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a simple scaffold that can be used by being attached to an existing steel column in steel construction work or the like.

[Prior Art] Scaffolding for this type of steel construction has traditionally been made of iron pipes or thin logs. In the case of iron pipes, it was a large-scale process and took a considerable amount of time to assemble.
Scaffolding is used only for construction purposes and is to be removed after completion, but scaffolding work has become relatively large-scale work.

[Problems to be Solved by the Invention] In the conventional example described above, there was a problem in that the scaffolding could not be easily assembled and dismantled. This was particularly inconvenient during the early stages of construction, when columns and beams were assembled on top of the foundation, as it was not possible to install scaffolding.

The purpose of this invention is to provide a simple scaffold that can be freely attached to an existing steel column.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention connects the arm part on which the feet are actually placed and the back support metal fittings through a bracket, and makes it possible to attach or remove the arm part from the steel column. It was designed so that it can be done freely.

[Function] The bracket and the arm part are engaged with the back support metal fitting via a link mechanism, and the back support metal fitting and the arm part (bracket part) are made rotatable by their rotatable shafts, A hook mechanism is used to connect the support metal fittings, making installation and removal easy.

[Example] An example of the present invention will be described with reference to the drawings. FIG. 1 shows a perspective view of the construction scaffolding of the present invention attached to a steel column. Reference numeral 10 denotes an arm which serves as a scaffold on which a worker stands when actually used at a construction site. Reference numeral 12 is a bracket, which is comprised of a connecting shaft 16 for connecting with the arm 10, a hook 14, and the like. 18 is a step for easy getting on and off the arm, 20 is a steel column to which this scaffold is attached, 26 is a recess that connects to the hook, 30 is a back support metal fitting, and 22 is a connection with the back support metal fitting. Link portions 24 each indicate a spring.

Next, attaching or detaching the scaffold of the present invention to or from a steel column will be explained using FIGS. 2 to 4.

FIG. 2 shows the case where the arm 10 is rotated 90 degrees clockwise from the state shown in FIG. The back support metal fitting 30 connected to the bracket 12 via the link portion 22 is placed against the steel column 20 and slid in the direction of arrow P to position it at a desired position. Thereafter, the bracket 12 and arm 10 are returned to their original horizontal positions (arrow Q), and the hook 14 is engaged with the recess 26 to attach it to the steel column. Of course, the rotation at this time is performed around the support shaft 22a of the link portion. The arm 10 becomes a foothold (arrow F), as shown in the side view of FIG. The gravity acts only in the direction of tightening the bracket and back support metal fittings through the links, so that the scaffolding will not loosen.

When removing the scaffold, a new position can be achieved by removing gravity from the arm and disengaging the front hook from the recess.
It can also be easily removed by rotating it in the opposite direction.

In this embodiment, the cross-sectional shape of the steel column is square, but it may be rectangular. However, in the case of a circular shape, it is only necessary to make some modifications to the structure, and the connection between the hook and the recess and the rotatable structure between the arm and the bracket may be the same.

Further, the step 18 is suspended from the arm and is convenient as a step when getting on and off the arm.

Further, in the embodiment shown in FIG. 4, the arm portion 10 is
This is a case where the structure is rotatable in the horizontal direction with respect to the connecting shaft 10a. This has the feature that the orientation of the scaffold can be easily changed because the scaffold, that is, the arm, can be changed in any direction in the horizontal plane. However, if it rotates too freely, it is rather undesirable as a scaffold, and it is desirable to have a structure that allows selection and locking at predetermined angles.

Furthermore, in this embodiment and FIG. 3, the part of the bracket 12 that contacts the steel column is located lower than the part of the back support that contacts the steel column, but this positional relationship is not suitable for mechanical strength. It's better to be familiar.

Furthermore, as is clear from FIGS. 1 and 2, this embodiment has a structure in which the arm and bracket rotate clockwise with respect to the steel column 20, but when attached to the steel column, the arm and bracket rotate horizontally. It may also have a rotating structure. That is, as a schematic diagram thereof is shown in FIG. 5, the device is characterized in that a side support fitting 32 is provided and an engaging portion 36 consisting of a hook and a recess is provided on the back portion 34. In this case, the side support fittings can be disengaged and opened about the support shaft 38 in the direction of arrow R. Therefore, in the case of a long steel column,
There is no need to insert the scaffolding from that end. In other words, it has the feature that it can be used even when the end of a steel column is not exposed.

Furthermore, in the case of FIG. 5, the arm side and the back side, which serve as the scaffold, have an integrated U-shaped structure, so the side support fittings 32 only need to support the bracket 12' so that it does not come off. The structure is simpler than that shown in FIGS. 4 to 4, and the structure does not need to be very robust.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an embodiment of the present invention, and FIG.
Figure 3 is an explanatory diagram of installing and removing the scaffold of the present invention.
FIGS. 4 and 5 show other embodiments of the present invention. 10...Arm, 12...Bracket, 14...
... Hook, 16 ... Connection shaft, 18 ... Step,
20... Steel column, 22... Link, 24... Spring.

Claims (1)

[Scope of Claims] 1. An arm part on which feet are actually placed at a construction site, a bracket part that is connected to the arm part and has a hook part on the other end of the arm, and a side opposite to the arm part that is attached to a steel column. a back support metal fitting provided on the back support metal fitting, and a connecting portion having a support shaft that can be rotatably connected to the back support metal fitting via a link mechanism on the bracket portion, and the back support metal fitting engages with the hook. 1. An architectural scaffolding comprising: a recessed portion for holding the hook; and a scaffold is formed by engagement of the hook portion and the recessed portion. 2. A construction scaffolding, characterized in that the arm section according to claim 1 is provided with a step section for use in getting on and off. 3. An architectural scaffolding characterized in that the arm portion according to claim 1 or 2 is horizontally rotatable.