KR20110080354A

KR20110080354A - Support of ladder

Info

Publication number: KR20110080354A
Application number: KR1020100000533A
Authority: KR
Inventors: 박종호
Original assignee: 박종호
Priority date: 2010-01-05
Filing date: 2010-01-05
Publication date: 2011-07-13

Abstract

The present invention relates to a supporting member of the lower support frame of the ladder, the end of the lower frame of the ladder for supporting the bottom surface to form a support for increasing the frictional force with the bottom surface to prevent the phenomenon of glazing; The support port is formed integrally with the protruding members engaging with each other on the basis of when the ladder is fully folded, characterized in that formed to be inclined so as to prevent unfolding more than the limit angle, if you want to move the ladder separate Since the ladder is prevented from being unfolded by engaging between the supporting members of the lower support frame of the ladder without using the locking device, there is an effect of providing a reduction in production cost and convenience of use. In addition, since it is formed to have an angle that can be prevented from spreading beyond the limit angle, the ladder is no longer stretched even when a large load is applied, thereby preventing the risk of falling and preventing the risk of safety accident. have.

Description

Ladder Supports {support of ladder}

The present invention relates to a supporting member of the lower support frame of the ladder, and more particularly, when the ladder is to be moved by folding the ladder by engaging between the supporting members of the lower support frame of the ladder without using a separate locking device. It relates to a ladder support for preventing the spreading.

In general, the general structure of the ladder, a plurality of scaffolds arranged side by side at a predetermined interval, a plurality of steps are placed at a predetermined interval, or a frame in the middle of two frames arranged side by side at a certain interval Hinge means for folding and unfolding are installed, and multiple frames are placed at a predetermined interval or ladders arranged at a predetermined interval, or four frames are arranged side by side at a predetermined interval and two frames are arranged at regular intervals and two frames It is roughly divided into a slidingly coupled ladder.

In addition, the above-described sliding ladder, that is, the conventional height adjustment ladder 100 capable of height adjustment, as shown in Figure 1 attached to the upper ladder 120 in the state in which the upper ladder 120 is inserted into the lower ladder 110, 120 The height is adjusted as the height of the lift rises, and the upper and lower ends are supported on the wall and the bottom, respectively, so that the worker can step on the ladder of the ladder and work at a high place.

These ladders are to climb on the step in the state in which the frame (upper ladder) on both sides through the hinge means to perform a variety of tasks that can be performed by the operator in a high place.

At this time, since the ladder is folded and spread by the hinge means, when the hinge means is unfixed and unfolded by the user's load, a drop accident may occur. Supporting means for present is as in the attached area A of FIG.

Of course, the supporting means alone does not prevent the unintentional unfolding of the hinge means, and limit means (such as chains or hinges) are usually provided to limit the maximum unfolding angle, but the supporting means is provided in addition to the above-described possibility. Due to its characteristics, it is often a mess in the room, but this is a useful configuration such as preventing scratches from occurring on the floor.

At this time, the ladder described above limits the angle at which the hinge means is unfolded by the limit means, but does not allow the ladder to be folded in reverse. It is common to provide.

Therefore, the ladder has a problem that acts as an increase factor of the production cost because additional configuration, such as a limit means for limiting the spreading angle and a locking device and a support for maintaining the folded state has to be provided.

An object of the present invention for solving the above problems relates to the support member of the lower support frame of the ladder, more specifically, to support the bottom of the ladder without using a separate locking device to move the ladder folded It is to provide a ladder support for preventing the ladder from being unfolded by engaging between the supporting members of the frame.

A characteristic of the ladder support according to the present invention for achieving the object is, the two ladders arranged side by side at a predetermined interval or a plurality of scaffolding arranged at a predetermined interval or two arranged side by side at a predetermined interval. Hinge means for folding and releasing the frame is installed in the middle part of the frame, and a plurality of scaffolds are arranged in four frames arranged side by side with a ladder or a plurality of scaffolds arranged at regular intervals on the frame. In the ladder disposed so as to be slidably coupled to each other: In the end of the lower frame of the ladder for supporting the bottom surface to form a support for increasing the frictional force with the bottom surface and to prevent the glazing phenomenon ; The support port is formed integrally with the protruding members engaging with each other on the basis of when the ladder is fully folded, characterized in that formed to be inclined so as to prevent the spread over the limit angle.

An additional feature of the ladder supporter according to the present invention for achieving the object is that the concave-convex structure is formed on the opposite surface between the protruding members of the supporter to be engaged.

As expected effects due to the above-described features of the present invention, when the ladder is to be folded and moved, the ladder is prevented from being unfolded by engaging between the supporting members of the lower support frame of the ladder without using a separate locking device. As a result, there is an effect that can reduce the production cost and provide convenience in use.

In addition, since it is formed to have an angle that can be prevented from spreading beyond the limit angle, the ladder is no longer stretched even when a large load is applied, thereby preventing the risk of falling and preventing the risk of safety accident. have.

1 is a perspective view for explaining the structure of a general ladder
Figure 2 is a perspective view and an enlarged view illustrating the main portion of the ladder support according to the present invention
Figure 3 is a cross-sectional view for explaining the working state of the ladder support according to the invention and enlarged example of the main portion

The above object and various advantages of the present invention will become more apparent from the preferred embodiments of the present invention described below with reference to the accompanying drawings by those skilled in the art.

Attached Figure 2 is a perspective view and an enlarged view illustrating the ladder support according to the present invention, Figure 3 is a cross-sectional view and an enlarged view illustrating the operation of the ladder support according to the present invention.

As shown, the ladder 200 applying the ladder support according to the present invention has a height as the upper ladder 220 is elevated in the state in which the upper ladder 220 is inserted into the lower ladder 210. By the hinge 230, the ladder is supported by the hinge 230 on the wall and the bottom of the ladder at an appropriate angle. It allows you to stand and work at high altitudes.

In this case, the ladder supporter according to the present invention, which is referred to by reference numeral 240, is formed with protrusions 242 integrally protruding from one side of the body, which is referred to by reference numeral 241, having a conventional support structure.

That is, as shown in the accompanying Figure 3, the protruding protrusions protruding from each other also has a concave-convex structure referred to by reference number 243 on the opposite surface, so that they are not easily separated from each other.

On the other hand, the above-described support is not only formed integrally protruding members engaging with each other on the basis of when the ladder is fully folded, as well as being formed so as to be inclined to prevent spreading beyond the limit angle unfolded even if any load is applied Is prevented.

This means that breakage of the ladder 200 is prevented even under any load.

Therefore, the damage of the ladder due to the load is prevented, as well as the fear of safety accidents caused by the fall of the worker by this is prevented.

While the invention has been shown and described with respect to the specific embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. Anyone with it will know easily.

That is, it will be known to those skilled in the art that it is applicable to both the footrest of the ladder and the coupling portion of the frame.

200: ladder 210: lower ladder
220: upper ladder 230: hinge

Claims

Hinges can be installed on two frames arranged side by side at regular intervals, with multiple scaffolds arranged at regular intervals, or hinged means to fold and unfold the frame in the middle of two frames arranged side by side at regular intervals. And a plurality of scaffolds arranged at a predetermined interval on the frame or a ladder arranged side by side at a predetermined interval, or a plurality of scaffolds disposed at a predetermined interval on the ladder, and the two frames are coupled to a sliding ladder. In:
At the end of the lower frame of the ladder for supporting the bottom surface to increase the frictional force with the bottom surface to form a support for preventing the gripping phenomenon;
The support base is a ladder support, characterized in that the projection member is formed integrally with each other on the basis of when the ladder is fully folded, inclined so as to prevent spreading beyond the limit angle.

The method of claim 1,
Ladder support port, characterized in that the concave-convex structure is formed on the opposite surface between the protruding members of the support port.