KR200327547Y1 - Ladders with footrests with clips and chains - Google Patents

Abstract

The present invention is to modify the existing ladder slightly to enable a stable position on the ladder as a ladder installed a wide footrest. One side of the scaffold was hinged and the other was a chain.

Description

Ladders with footrests with clips and chains {omitted}

It is an object of the present invention to be able to work in a more stable posture when working on a ladder.

The present invention belongs to the field of ladder construction technology, and it seems that there is no case where the footrest is installed using a chain.

Securing Foothold: When the angle of ladder is widened, space for foothold is created. U-shaped hinge (②) is used to secure enough space.

Since the current shape is V-shaped rather than U-shaped, there is not enough foothold space unless the angle of the ladder is widened. U-shaped means that the hinge is made as in the case of FIG.

Figure 1 is a three-dimensional view of the assembly as viewed from the side of the footrest.

2 is a three-dimensional view of the entire assembly as viewed from the opposite side of the scaffold.

Figure 3 is an internal side view of Figure 1. Figure 2 (only parts necessary for structural understanding) are shown.

Figure 4 is a folded form of Figure 3.

Fig. 5 is a view seen from the direction of arrow A in Fig. 4 (half part of the ladder).

Figure 6 is a view from the direction of arrow B of Figure 4 (half part of the ladder) Figure 7 is a detailed view of a large footrest.

(A) Bottom view.

(B) side view.

(C) is a three-dimensional view. Figure 8 is a large. Illustration of a small scaffold chain hook and a small scaffold. (D) is a large. A small scaffold chain hook. (E) a three-dimensional view of a small scaffold. E) The shape which turned upside down. Figure 9 is a detailed view of the small footrest. (G) is a bottom view. (A) is a horizontal side view. (R) is a vertical side view.

〈Description of Drawings〉

①: Large scaffold ②: U-shaped joint

③: small scaffold ④: large / small scaffold chain hook ⑤: small scaffold chain ⑥: large scaffold installation clip (mounting)

⑦: Pipe hook fastening pipe ⑧: Small scaffold chain hook ⑨: Small scaffold installation clip (mounting) ⑩: Crossbar ⑪: Large scaffold chain

<Overall overview>: Install a large footrest (①) on the crossbar by using a hook (⑥) and a chain (⑪) on a ladder with a U-shaped hinge (②). Use ⑤) to install a small footrest (③) on the horizontal bar below it and open the ladder to make a shape as shown in FIG.

When changing the angle of the ladder, adjust the horizontal level of the large scaffold by increasing or decreasing the chain.

You can also hang the chain 에 on the chain hanger (④) on the left and right of the crossbar.

Working on a wide footrest not only allows you to work in a more stable and comfortable position, but also allows you to work with the tools or materials you need to work on the footrest.

<Description of each drawing>

1: Figure 1 is a view as viewed from the scaffolding side as a whole assembled ladder standing up. The large footboard and the small footboard are installed on the crossbars by means of clips (⑥, ⑨), and the chains (⑪, ⑤) are attached to the crossbars or chain hooks (④) so that the footrest can be used. Material: Use elastic steel sheet.

Fig. 2 is a view of Fig. 1 viewed from the opposite side of the scaffold.

Fig. 3 is an internal side view of Fig. 1 and Fig. 2 showing only parts necessary for understanding the structure.

Fig. 4 is a folded view of Fig. 3.

Fig. 5 is a half view of the ladder as seen in the direction of arrow A in Fig. 4.

Fig. 6 is a half view of the ladder as seen in the direction of arrow B in Fig. 4.

Fig. 7 is a detailed view of a large scaffold. (A) is a bottom view (b) is a side view (c) is a three-dimensional view. As a skeleton material of the scaffold, stainless steel is mainly used, and plywood is used as a material of the upper plate (hatched portion). Or aluminum. ⑥ is a large scaffold mounting fitting (same as ⑨) for attaching and installing a large scaffold on the crossbar. Part of the large scaffold is not attached to the top plate considering weight and shape. Fig. 8: (D) is a large / small scaffold chain hook. ④ and ⑦ are screwed together. First, one side of ④ is combined with ⑦, then push ⑦ into the crossbar, and the other side of ④ is combined with ⑦. ④ and ⑦ can rotate freely in the crossbar. (D) can be installed in the required position because it can be separated and combined. (E) is a three-dimensional view of a small scaffold. Using aluminium or stainless steel as the skeleton of the small scaffold, clip (like a clip) like ⑨ is used. So that a small footrest can be installed on the crossbar. The small footstool is removable so that it can be installed in the required position. (Bar) is the shape of (E) turned upside down. Fig. 9: (B) is the bottom view of the small footstool. Is a longitudinal side view of the small footstool.

(1) working on a wide scaffold not only provides stability and comfort, but also (2) allows the materials or tools necessary for the work to be placed on the scaffold, and (3) when working on an orchard in an orchard, standing on a small scaffold. You can place the fruit you picked up on a large scaffold.

Claims (1)

Attach the U-shaped hinge (②), and attach one side of the large foot plate (①) with the top plate attached to only a part of the foot plate with the fitting (⑥) to install on the crossbar, and attach the other side to the crossbar or chain hook (④). I hang it on a chain and install it, Ladder installed by hanging with chains (⑤) on chain hooks (④, ⑦) with one side of the footrest (③), which is smaller than the larger one, fitted with a fitting (⑨) and the other side mounted on the crossbar. .