JP2002266579A - Non slip device for grounding fixture for ladder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a non stop device for a grounding fixture for a ladder, which is a large-sized anti-skid member of an attachment type, to be attached to a conventional leg portion of the ladder, in order to prevent slippage of the ladder on every road surface, and exchangeable, when used, depending on a location of use. SOLUTION: The non-slip device requires at least three types of grounding surfaces to prevent slippage of the ladder on every road surface. One of them is of a rubber projective type. Excellent durability and anti-skid effect of this type are self-explanatory because of its employment in a studless tire of a vehicle. The second surface is ideally implemented by a rough surface of soft rubber, which does not mar a floor when used indoors. The surface of this type exerts effect on a slickenside of a p-tile or the like. The third surface is of a metallic pin-type which is indispensable on a snow surface. The third surface is also effective when used on a gravel surface or a soil surface because of pins piercing the ground. The ladder is provided with the grounding fixture including these anti-skid members in an easily exchangeable manner.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an attachment for general use, indoor use, and snow use for the purpose of preventing and stabilizing a ladder, which can be easily attached to a conventional leg fitting and has a fine height. Provided is a non-slip for a grounding fitting which allows adjustment.

[0002]

2. Description of the Related Art Japanese Patent Application No. Hei 6-1 is similar to the present invention.
05594. This is a non-slip device of a type which is put on a conventional leg fitting and fixed with a string. However, in this case, the actual site is covered with mud and looks like a rag, and the fixing method is ambiguous and lacks reliability. Furthermore, although a non-slip layer having a large coefficient of friction is provided, it cannot be said that there is no non-slip suitable for all the grounds, so it is ineffective.

[0003]

The major cause of slippage of the ladder is the inadequate material of the ground and the tread. Ideally, it should be replaced with a ground contact surface suitable for each ground, but it is impossible economically and practically. In addition, the ladder is often tilted slightly due to imbalance in the ground when it is stretched high, and it is dangerous to use conventional fixed legs.

[0004]

In order to solve the above problems, the present invention has developed three types of legs having the minimum required shapes. The first is an all-purpose rubber type that can be used even on the most slippery pavement surfaces and stones outdoors, and has multiple projections. The second one is for indoor use only. It has a rough rubber surface (the texture of finger sack) that covers the entire surface with rubber to avoid damaging the floor and does not slip on P tiles. The third type, which exerts its power on snowy and gravel surfaces, has multiple metal pins that pierce the ground. By equipping the above three types and installing metal fittings that are extremely easy and reliable to replace, it becomes a practical non-slip device that is almost ideal in most situations.
Further, the stability of the wide shape and the fine adjustment of the height become possible, so that the level of the safety ladder is improved by the combined effect.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The feature of the present invention is that it can be directly attached to a swing type grounding metal fitting used in most of the conventional commercial products. It emphasized safety and reliability, and adopted a bolt fixing method instead of one-touch. The most distinctive feature of the overall shape is that, despite the conventional leg-mounted system, the height has not been significantly changed.

[0006]

Embodiments will be described with reference to the drawings. First, the ladder is set up, the left and right attachments are placed in front of the legs, and then the ladder is lifted and placed on the leg placement space A of the attachment. Space A is slightly depressed and has a stable shape. Then, when the handle F is turned and the leg is pushed, the rear part is fixed by being sandwiched between the receiving part B and the front part by a metal figure E which is fastened to the bolt end of the handle. Bolt shaft D is supported surface C
It is a structure that moves up and down inside the, and each surface is shaped like a wave. Therefore, the ladder will be fixed firmly when the handle is closed after checking the level of the ladder. Further, in order to make the effect of the movement smooth, the bolt axis of the handle is obliquely downward.

[0007] The back side of the left and right expanding surfaces G of the recess space serves as a ground contact portion with the actual ground. A bend H is provided around the G to provide strength and also serves to fix the rubber material on the back surface. Rubber material is about 5mm, metal pin is 1
It protrudes from the depressed space by about 0 mm to the ground, and has a shape that exerts its effect.

[0008]

The conventional ladder can be extended to the longest, and it can be used as long as it is not a place where the road surface is slippery. However, in actual work, the ladder is made the longest or the road surface is paved or rocked. It is frequently used in extremely slippery places such as. Therefore, there is a person to support the ladder, but if it still slips, two people may be injured. After all, it is important that the ladder itself has as much non-slip function as possible. By properly using the conventional leg and the three types of the present invention, the worker can be protected from dangerous ladder work.

[Brief description of the drawings]

FIG. 1 is a plan view of an entire attachment.

FIG. 2 is a front view of FIG.

FIG. 3 is a side view of FIG. 1;

FIG. 4 is a plan view of a projection rubber type.

FIG. 5 is a perspective view of an indoor rubber type.

FIG. 6 is a plan view of a metal pin type.

[Explanation of symbols]

 A: Leg space B: Leg holder C: Bolt support plate D: Bolt support plate E: C-shaped push plate F: Rotating handle G: Surface of the grounding section H: Bend

Claims (3)

[Claims] 1. An attachment which is attached to a grounding bracket of a conventional ladder, and is a large-sized leg that covers a conventional vertically long grounding surface and that extends in a circular or angular shape to the left and right. Non-slip for grounding metal fittings on ladders with a rubber projection structure on the back side using a bolted replacement method with up and down adjustment functions. 2. An exclusive use for a room having the same upper surface as that of the first embodiment, a non-slip structure on the back surface made of soft rubber, and a rough surface, and having a shape that covers the whole metal member. Non-slip for the grounding bracket of the ladder to be used. 3. A non-slip for a grounding metal fitting of a ladder used for snow and gravel road surfaces having a same top surface as that of the first and second embodiments and a non-slip structure on a back surface into which a plurality of metal pins are driven. .