JP3049543U - Ladder in front of wooden building - Google Patents

Abstract

(57) [Summary] [Purpose] The purpose is to be able to install a ladder so that work can be performed safely before a wooden building is built, and to reduce the number of workers required for pre-construction work and the working hours. And [Structure] A ladder formed by welding and connecting an iron round pipe φ16 (back and forth sway prevention bar, step platform) and an iron round pipe φ24 (ladder body, hook for hanging on a building horizontal member, construction work table).

Description

[Detailed description of the invention] Before building a wooden building, the floor surface is often not horizontal, and it is difficult to install the conventional ladder (tilted ladder, stepladder, etc.) if the floor is not horizontal, and the upper ladder Unless another person fixed the lower part of the pedestal by hand, it was not safe and the tread of the ladder was so small that it was not possible to perform heavy lifting work such as lifting lumber.

The present invention has solved the drawback, and its structure will be described below in detail with reference to the accompanying drawings.

At the top of the ladder body, a hook is provided to hang the building on the horizontal members, and when using the ladder in Fig. 4, as shown in Fig. 1, the beam is usually lifted by a crane before raising a wooden building before building. This is a drawing of the situation, and a ladder is hung on the beam when the column and beam are not yet integrated. The hook was hook-shaped, and the inside size was 12.5 cm, the average size of the beam.

In addition, by using the back-and-forth swing prevention rod attached to the center of the ladder body and fixing it to the pillar as shown in FIG. 4, the swing can be prevented.

In addition, a work table can be attached to the ladder body to perform the force work of striking the columns and beams with a wooden hammer as shown in Fig. 4.

In addition, it has become easier to connect the beams by lifting the lumber as shown in Fig. 5, and now it has been possible for one person to work with two or three people.

The installation position of the construction work table shall be 1.30 m below the upper part of the ladder body, and this height is about the height of the average adult male's height of 1.70 m and the height of this work is the highest. I thought it was easy.

The use of round iron pipes as the material for the ladder reduced the weight of the ladder body and improved portability.

To be more specific, an iron round pipe φ24 is used for the ladder body hook and φ16 is used for the anti-sway bar platform. Φ16 and φ24 were mixed for the work table.

Finally, the ladder body protrudes from the step at the bottom so that it can be used as a normal inclined ladder.

[Brief description of the drawings]

FIG. 1 is a view of the ladder viewed from the front, FIG. 2 is a view of the ladder viewed from the side, FIG. 3 is a view of the work table of the ladder viewed from above, and FIGS. It is an appearance. ： Ladder body Use steel round pipe φ24 ： Hanging part to be hung on the building horizontal material Use iron round pipe φ24 ： Sway prevention rod Use steel round pipe φ16 ： Construction work table ： Stepping Use steel round pipe φ16

────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] April 10, 1996

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claim 2

[Correction method] Change

[Correction contents]

2. A ladder in front of a wooden building according to claim 1, wherein a construction work table (also used as a tread of the ladder) is attached to a center portion of the ladder body. ───────────────────────────────────────

[Procedure amendment]

[Submission date] September 25, 1996

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claim 2

[Correction method] Change

[Correction contents]

2. A construction work table that also serves as a tread of a ladder. ─────────────────

[Procedure amendment]

[Submission date] April 14, 1997

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claim 2

[Correction method] Change

[Correction contents]

2. A ladder in front of a wooden building according to claim 1, wherein a construction work table also serving as a tread surface of the ladder is attached to the center of the ladder main body.

[Procedure amendment]

[Submission date] October 6, 1997

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claim 2

[Correction method] Change

[Correction contents]

Claims (2)

[Utility model registration claims] 1. A building transverse member (beam, etc.) on an upper part of a ladder main body.
A ladder in front of a wooden building, characterized in that a hanging portion is provided for hanging the ladder, and a ladder sway prevention rod is attached at the center of the entire length of the ladder to prevent the ladder from swinging back and forth, left and right. 2. A ladder in front of a wooden building as set forth above, wherein a construction work table (also used as a tread of the ladder) is attached to the center of the ladder body.