JPH0569236U - Ladder structure - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a ladder structure that allows easy construction and disassembly of lifting equipment on a temporary scaffold. [Construction] Since at least one end of the ladder material 10 is formed with an elongated hole 14 capable of adjusting the position of the clamp 16 according to the width of the space between the pair of building materials 22, 22, the pair of building materials 22, It is also possible to deal with temporary scaffolds having different intervals of 22. As a result, unlike the conventional ladder structure, it is not necessary to cut the scaffolding material each time according to the distance between the pair of building materials 22, 22. Further, since the attachment work for attaching the ladder material 10 to the building material 22 is facilitated, it is possible to construct the ladder structure of the present invention on a high scaffolding floor in a short time.

Description

[Detailed description of the device]

The present invention relates to a ladder structure, and more particularly to a simple ladder structure to be attached to a temporary scaffold for work in high places.

[0002]

[Prior Art]

 This type of conventional ladder structure cuts the same material (steel pipes, etc.) as the temporary scaffold, according to the distance between the pair of building materials that will be used to install the lifting equipment, among the building materials that make up the columns of the temporary scaffold. To create a ladder material for multiple steps. Then, the plurality of ladder members are passed at a constant interval so as to be perpendicular to the pair of building materials, and the building materials and the ladder members are fastened and fixed by an orthogonal clamp.

[0003]

[Problems to be solved by the device]

 However, in the case of a conventional simple ladder structure for scaffolding, it is necessary to cut the ladder material each time according to the interval between the pair of building materials, and it takes time, and when it is used next time, There is a possibility that the pair of building materials will not be able to be used due to the different spacing, and the ladder material will be wasted.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a ladder structure capable of easily constructing and disassembling a lifting facility on a temporary scaffold.

[0005]

[Means for solving the problem]

 In order to achieve the above-mentioned object, the present invention provides a ladder structure in which a plurality of step ladder members are crossed at a right angle between a pair of columns, and both ends are clamped and fixed to the columns. The ladder member is characterized in that at least one end of the ladder member is formed with an elongated hole capable of adjusting a clamp position according to a width of a support column.

[0006]

[Action]

 To construct the ladder structure of the present invention, first, the clamps are fixed to the ladder member in accordance with the distance between the pair of building materials to which the lifting equipment is attached. Next, the ladder material is crossed at right angles to the pair of building materials, and a clamp is firmly tightened and fixed to the building material. Similarly, the ladder structure of the present invention can be constructed by attaching the ladder members to a pair of building materials at regular intervals.

This makes it possible to deal with temporary scaffolds in which the distance between the pair of building materials is different, and the scaffolding material is cut each time according to the distance between the pair of building materials, as in the conventional ladder structure. There is no need to make ladder materials. Also, since the work of attaching the ladder material to the building material becomes easy, it is possible to construct the ladder structure of the present invention on a high scaffolding floor in a short time.

[0008]

【Example】

 Hereinafter, a preferred embodiment of the ladder structure according to the present invention will be described in detail with reference to the accompanying drawings. In the ladder structure of the present invention, as shown in FIGS. 1 and 2, a steel pipe having a thickness that is easy to grasp and a proper strength is used as a material of the ladder member 10, and both end portions of the ladder member 10 are crushed and crushed. A flat portion 12 having a flat shape is formed. Further, the flat portion 12 is formed with an elongated hole 14 formed in the longitudinal direction of the ladder member 10.

Further, the clamp fixing screw 18 of the single-ended clamp 16 is inserted into the elongated hole 14 and fixed by the clamp fixing nut 20. By the way, the one-sided clamp 16 includes a one-sided opening 24 attached to the building material 22 and a tightening screw 26 for tightening the one-sided opening 24, a clamp fixing screw 18 and a clamp fixing nut 20 to be inserted into the elongated hole 14 of the ladder member 10. It consists of

Next, a method of constructing the ladder structure thus configured on the temporary scaffold will be described. As shown in FIG. 3, first, the procedure for constructing a scaffolding floor for work in a high place of a temporary scaffold will be explained. Stand up. That is, in addition to the two building materials 22 shown in FIG. 3, the building materials 22 are also erected on the back side and left and right of FIG. 3 which are not shown.

Next, a cross member 32 is passed between the building materials 22 according to the height at which the scaffold plate 30 is laid, and fixed to the building material 22 with a scaffolding clamp 34. Scaffolding board 30 is laid on the ground. Further, a hand stanchion 36 is provided vertically on both sides of the scaffolding plate 30, and is fixed to the scaffolding plate 30 by a scaffolding clamp 34. Further, a scaffold 38 is provided on the scaffold plate 30 in parallel with the scaffold plate 30, and is fixed to the building material 22 and the scaffold stanchion 36 by a scaffold clamp 34 to construct a scaffold floor.

In order to construct a ladder structure in which an operator can move up and down on the scaffolding floor constructed in this way, the ladder member 10 is adjusted according to the distance between the pair of building materials 22, 22 to which the ladder structure of the present invention is attached. After sliding the one-sided clamp 16 attached to the elongated hole 14, the clamp fixing nut 20 is tightened to fix the ladder member 10. Next, with the ladder material 10 intersecting the pair of building materials 22, 22 at a right angle, the one-end clamp 16 of the one-sided clamp 16 is attached to the building material 22, and tightened firmly with the tightening screw 26. Fix it.

Similarly, if the ladder member 10 is attached to the pair of building materials 22, 22 at regular intervals, the ladder structure of the present invention can be easily constructed. This makes it possible to deal with temporary scaffolds in which the distance between the pair of building materials 22, 22 is different, and each time according to the distance between the pair of building materials 22, 22 as in the conventional ladder structure. It is not necessary to cut the same material as the building material 22 to make the ladder material 10.

Further, since the ladder material 10 and the single-ended clamp 16 are integrated, the attachment work for attaching the ladder material 10 to the building material 22 is facilitated. Therefore, the ladder structure of the present invention is constructed on a high scaffolding floor. Even in the case, it can be performed in a short time. Similarly, dismantling work becomes easier. In addition, since a rod member that is easy to grip as a ladder material and has an appropriate strength as a ladder material is used, it is easy for the worker to move up and down. The risk of causing

In this embodiment, both ends of the ladder member are formed in a flat shape, but flat steel may be used. Also, if the distance between the pair of building materials that make up the ladder structure is unified to a fixed size, the holes for adjusting the width formed at both ends of the ladder material become unnecessary.

[0016]

[Effect of the device]

 As described above, according to the ladder structure of the present invention, since at least one end of the ladder member is formed with an elongated hole capable of adjusting the clamp position according to the width of the strut space, a pair of construction sites is constructed. It can also be used for temporary scaffolds with different material intervals. As a result, unlike the conventional ladder structure, it is not necessary to cut the scaffold material each time according to the distance between the pair of building materials to make the ladder material.

Further, since the attachment work for attaching the ladder material to the building material is facilitated, it is possible to construct the ladder structure of the present invention on a high scaffolding floor in a short time.

[Brief description of drawings]

FIG. 1 is a side view of a main part of a ladder structure according to the present invention.

FIG. 2 is a sectional view taken along the line AA in FIG.

FIG. 3 is an explanatory view of mounting a ladder structure according to the present invention.

[Explanation of symbols]

 10 ... Ladder material 14 ... Oblong hole 16 ... Single-ended clamp 22 ... Construction material

Claims (1)

[Scope of utility model registration request] 1. A ladder structure in which a plurality of step ladder members are intersected at a right angle between a pair of columns at regular intervals, and both ends are clamped and fixed to the columns by a clamp, and at least one of the ladder members is constructed. A ladder structure with a long hole at one end that allows the clamp position to be adjusted according to the width of the strut space.