JPH03217591A - Ladder device - Google Patents

Abstract

PURPOSE:To enable the use of a ladder device fit for various kinds of sites and places to be used by providing coupling sections to the upper and lower ends of side members of a ladder body, and coupling the ladder with a building through mounting brackets having one ends to which fixed sections of the side members are provided and having the other ends to which loading and unloading mounting sections to the building are provided. CONSTITUTION:A ladder body (a) is constituted of side members 1a and 1b and foot- bars 1c, and coupling sections 4 of the lower ends are fitted to coupling sections 3 constituted of female type metal fixtures to receive the upper ends to couple the lower ends with the upper ends of the side members 1a and 1b. After that, mounting brackets (b) are horizontally provided, fixed sections 9 of the side members 1a and 1b are provided to one ends, and loading and unloading mounting sections 11 to a building skeleton 10 are provided to the other ends. Fixed plates 9a are provided to one ends of the brackets (b) to hold and fix the side members 1a and 1b between the fixed plates, and stopping rods 11a provided to the other ends are inserted into receiving pieces 14 of the building skeleton 10 and fixed to form a ladder device. According to the constitution, mounting, adding, removing and disassembling can be easily performed.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a ladder device used at construction sites of high-rise buildings, etc., and is characterized by being economical and easy to handle.

[Conventional technology]

At the construction site of a high-rise structure such as a building, the steel frame is first assembled, and then various other works are carried out one after another. The steel frame assembly work is carried out by erecting columns and then joining beams between the columns. During the joining of the beams and various subsequent operations, workers used ladders installed on the sides of the pillars to climb up and down. The conventional ladder device described above has a ladder configured to match the length of the location where it will be used, and is completely fixed to the pillar material by welding via a mounting rod. [Problems to be Solved by the Invention] The conventional ladder device is configured to have a length suited to the location where it is used, so it is difficult and uneconomical to reuse it at other sites. Because it is attached to the pillar material by welding, it takes time to install, add, and remove, and even after removal, the ladder and the mounting rod are integrated, making it bulky, difficult to transport, store, etc. It was extremely time-consuming to handle. The present invention has been made in view of the above circumstances, and aims to provide a ladder device that is economical, can be used and reused in accordance with various sites and places of use, and is extremely easy to handle. It is something. [Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention includes a ladder main body in which connecting parts are formed at the upper and lower ends of the side members, a fixing part of the side members is formed at one end, and a fixing part for the side members is formed at the other end. The structure consists of a mounting bracket that has a part for attaching and detaching it to the building frame. [Function] In the present invention, the removable mounting portion 11 provided at the other end of the mounting bracket b is attached to the hollow receiving bead l4 etc. provided vertically and at appropriate intervals on the building frame 10 side, and the mounting bracket The side members 1a and lb of the ladder body a are fixed to a fixing part 9 provided at one end of the ladder body a. And furthermore,
Ladder body a is used by connecting it to the required length. Therefore, the ladder device a of the present invention can be used and reused in accordance with various sites and places of use, is easy to install, add to, remove, and disassemble, and is also easy to handle during transportation, storage, etc. It does not require any effort. [Example] An example of the present invention will be described below in detail with reference to the drawings. As shown in the first diagram, the ladder main body a is composed of side members 1a and tb and a step bar 1c provided with an appropriate interval between them. In the present invention, connecting portions 3 and 4 are further provided at the upper and lower ends of the side members 1a and lb. In the illustrated embodiment, the upper end connecting portion 3 is comprised of a female metal fitting that receives the ends of the side members 1a and lb, and bolt holes 5 are provided at appropriate positions. In addition, the connecting portion 4 at the lower end is left as the side members 1a, ib, and has a bolt hole that fits the female metal fitting that constitutes the connecting portion 3 at the upper end and also fits the bolt hole 5 provided there. There are 6.

However, the female carving tool may be simply a flat plate. In addition, the length of the ladder main body a in the present invention is a length that can be easily adapted to various sites and places of use, and can be easily handled for transportation, storage, etc., specifically, a relatively short length, e.g. The length is 1m40am or 2m10am. However, it is convenient to prepare several types. In the ladder main body a according to the present invention having the above structure, the connecting part 3 at the upper end is joined to the connecting part 4 at the lower end of the ladder main body a to be connected, the bolt 7 is inserted into the matching bolt holes 5 and 6, and the nut 8 is inserted. All you have to do is tighten and fix them, and in the same way, connect an appropriate number to create the required length. Next, referring to the mounting bracket b, the mounting bracket b is attached to the building frame 10 as shown in the first figure.
One end is provided with a fixing part 9 for the side members 1a and lb of the ladder main body a, and the other end is provided with a part 11 for attaching and detaching to the building frame lO. In the embodiment shown in the drawings, the fixing part 9 is configured such that the side members 1a, lb of the ladder main body a can be slid freely and fixed at any position. That is, a fixing plate 9a is welded to one end of the mounting bracket b to receive the side members la and lb of the ladder body a, and by tightening its tip with the tightening bolt 12 and nut l3, the side member fat lb of the ladder body a is fixed. The structure is such that the support is fixed. Further, the attachment/detachment attachment portion 11 to the building frame lO is provided with a locking rod lla in the vertical direction of the other end of the attachment bracket b.
It is constructed by welding a split pin llb to its lower end to prevent it from coming off. As shown in the first diagram, the present invention having the above-mentioned configuration has a building frame i.
Weld hollow receiving pieces l4 vertically and at appropriate intervals on the ladder installation part o, insert and lock the locking rod lla of the mounting bracket b into the receiving pieces l4 from above, and then install. Fixed part 9 of bracket b
It is used by fixing the side members 1a and lb of the ladder main body a. The installation work of the ladder main body a can be carried out by temporarily fixing the ladder main body a and the mounting bracket b together in advance, or by first attaching the mounting bracket b.
After the ladder main body a is fixed to the receiving bead 14 of the building frame 10, the ladder main body a may be sequentially fixed to the fixing portion 9 at one end of the mounting bracket b. In the present invention, as long as the receiving pieces 14 are installed at appropriate intervals in the vertical direction, they do not need to be installed at the same height on the left and right sides, and can be relatively rough.

FIG. 3 shows another embodiment of the mounting portion 11 for attaching and detaching the mounting bracket b to the building frame lO.

That is, a pipe 16 is fixed by a clamp l5 between the cross beams 10a constituting the building frame 10, a clamp 17 provided at the other end of the mounting bracket b is fixed to the pipe l6, and a ladder main body a is attached to one end. It is.

〔Effect of the invention〕

The ladder device of the present invention can be used and reused in accordance with various sites and places of use, is economical, and is easy to install, add to, remove, and disassemble, and is easy to handle in transportation, storage, etc. It is possible to obtain such effects that it does not require much effort.

[Brief explanation of drawings]

The drawings show a practical example of the present invention; FIG. 1 is a perspective view of the main parts, FIG. 2 is a perspective view showing the installed state, and FIG. 3 is a perspective view of the main parts showing another embodiment. It is. la, lb...Side material, 3, 4...Connecting part, 9...Fixing part, 10...Building frame,
1l...Detachable mounting part, a...Ladder body, b
...Mounting bracket. spear 1 figure

Claims (1)

[Claims] The ladder body is composed of a main body in which connecting parts are formed at the upper and lower ends of the side members, and a mounting bracket in which a fixing part for the side members is formed at one end and a part for attaching and detaching to the building frame is formed at the other end. Characteristic ladder device.