JPH07158366A - Slip stopper for ladder - Google Patents

Abstract

PURPOSE:To enhance mounting workability by fixedly installing a ladder slip- stopper, which is swingably hinged into a sitting seat having a slip preventative surface, to the end of a main post on both sides. CONSTITUTION:A slip preventative sitting seat plate 13 having a sitting seat surface 13A made of a slip preventative material, such as rubber, is swingably connected to a frame material 14 with a hinge 12, thereby forming a ladder slip stopper 10. This slip stopper 10 is removably fixed with the upper and lower ends of a main post 2 of a ladder 1 on both sides with a thumbscrew 15. The sitting seat plate 13 is arranged to come in full contact with a wall surface or a ground surface no matter at any slanting angle the ladder 1 is installed. The slip stopper 10 is mountable to only one end of the ladder, either the upper end or the lower end, depending on an area condition when it is used. The frame material 14 is prefabricated in larger size and adjustable with the thumbscrew 15 so that it may be applicable to many types of ladders. This material serves to protect the ladder 1 from being slipped when used and enhance safety. This construction makes it possible to mount removably the slip stopper 10 easily.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slip preventer for a ladder.

[0002]

2. Description of the Related Art Conventionally, as a means for stably leaning a ladder against a wall surface of a building, as described in Japanese Utility Model Publication No. 4-33359, an installation base is installed at each of the upper end portions of the left and right main pillars constituting the ladder. There is one in which a rubber plate for non-slip is fixed to the installation surface of this installation base so that it can be freely rocked.

This prior art is intended to prevent side slippage of the upper end portion or the lower end portion of the ladder by seating a rubber plate of the installation base on the wall surface of the building against which the ladder is leaning or the ground surface.

[0004]

However, the prior art has the following problems. The installation surface composed of the rubber plate of the installation base is a small area provided only around the ends of the left and right main pillars,
Since the seating area on the wall of the building is small, it is difficult to expect a sufficient skid prevention effect.

The installation base is attached to each of the left and right main pillars, and is still attached by the bolts / nuts penetrating the support member of the installation base and the main pillar, so that the workability of attaching to the main pillar is poor.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a skid stopper for a ladder which can surely improve the skid prevention of the ladder.

It is another object of the present invention to improve the workability of attaching the anti-slip device for a ladder to the ladder.

[0008]

The present invention as set forth in claim 1 is a slipper for a ladder provided at the ends of the left and right main pillars that form a ladder, and is attachable to and removable from the ends of the left and right main pillars. It is configured to have a mounting body and a non-slip seat plate that is swingably coupled to the mounting body and has substantially the same width as the entire width of the ladder.

According to a second aspect of the present invention, in addition to the first aspect of the present invention, the mounting body is a frame member attached to the left and right main pillar ends, and the frame member is screwed to the frame member. And a thumbscrew that is fastened to the ends of the left and right main pillars.

[0010]

According to the present invention as set forth in claim 1, the following effects are obtained. The anti-skid seat plate can be freely swung by the mounting bodies attached to the left and right main pillar ends (upper end or lower end), and the entire surface can contact the wall surface (or ground surface) of the building leaning against the ladder. it can. At this time, the anti-slip seat plate has substantially the same width as the entire width of the ladder, and the seating surface has a wide and large area, so that the sideslip of the ladder can be reliably prevented.

According to the second aspect of the present invention, there are the following effects. The mounting body provided with the anti-slip seat plates is attached to the left and right parent columns all at once by covering the left and right parent column ends with the frame material and screwing the thumbscrews provided on the frame material. That is, the workability of attaching to the main pillar is good.

[0012]

EXAMPLE FIG. 1 is a schematic view showing a state in which a slipper for a ladder according to an embodiment of the present invention is used. FIG.
(B) is an overall view, FIG. 2 is a schematic view showing a slip preventer for a ladder, (A) is a side view, (B) is a front view, and (C) is (B).
FIG. 4 is a sectional view taken along line CC of FIG.

As shown in FIG. 1, the ladder slip preventer 10 is used by being provided at the end portions (upper end portion or lower end portion) of the left and right main pillars 2 and 2 constituting the ladder 1.

The ladder 1 is composed of left and right main pillars 2 and 2 and step rails 3 fixed between the main pillars 2 and 2 with a certain space in the vertical direction. . Main pillar 2 and step 3
Is made of, for example, a wood or aluminum alloy extruded mold material.

However, as shown in FIG. 2, the anti-skid device 10 for a ladder can be attached to and detached from the ends of the left and right main pillars 2 and 2, and can be swung by a hinge 12 on the attachment body 11. Anti-skid seat plate 13 that is joined and has a width substantially the same as the entire width of the ladder 10.
Have and.

The mounting body 11 is a frame member 14 attached to the ends of the left and right parent columns 2 and 2, and is screwed to the frame member 14 and fastened to the ends of the left and right parent columns 2 and 2. And thumbscrews 15, 15.

The frame member 14 of the mounting body 11 is in the shape of a box with one end open, and the slip-resistant seat plate 13 is connected to the end plate 14A of the frame member 14 through the hinge 12, and the left and right side plates 14A and 14B thereof are provided with thumbscrews 15. , 15 are screwed on.

Further, the mounting position of the hinge 12 with respect to the anti-skid seat plate 13 is vertically displaced from the center in the height direction of the anti-slip seat plate 13 (H ₁ <H ₂ ) (FIG. 2 (A)),
(a) When the anti-slip device 10 for a ladder is attached to the upper end of the ladder 1, the anti-skid seat plate 13 is freed by the bending moment of gravity acting around the hinge 12 on the anti-skid seat plate 13 in the free state.
Is positioned in the vertical direction along the side plate 14C of the frame member 14, and can be naturally and easily leaned against the wall surface A of the building. (B) When the anti-slip device 10 for a ladder is attached to the lower end of the ladder 1, the anti-skid seat plate 13 is attached to the frame member 14 by the bending moment of gravity acting around the hinge 12 on the anti-skid seat plate 13 in the free state. It is positioned in the horizontal direction along the end plate 14A so that it can be naturally and easily installed on the ground surface B.

The seating surface 13A of the antiskid seat plate 13 is
Made of rubber plate or plastic plate with groove,
It is provided with a special anti-slip function for the wall surface A of the building or the ground surface B.

The operation of this embodiment will be described below. The anti-skid seat plate 13 is swingable on the mounting bodies 11 mounted on the left and right main columns 2 and 2 ends (upper end or lower end), and the wall surface A (or ground surface) of the building where the ladder 1 is leaned against. The whole surface can be contacted with B). At this time, the anti-skid seat plate 13 has substantially the same width as the entire width of the ladder 1,
Since the seating surface 13A has a wide and large area, the sideslip prevention of the ladder 1 can be reliably improved.

The mounting body 11 having the anti-slip seat plate 13 is
Frame members 14 are attached to the left and right main pillars 2 and 2 ends.
By screwing the thumbscrews 15, 15 provided on the No. 4, they are attached to the left and right main posts 2, 2 all at once. That is, the workability of attaching the main pillars 2 and 2 is good.

The anti-slip device 10 for the ladder is attached to the mounting body 11.
Is attached so that the left and right main pillars 2, 2 are sandwiched by the left and right thumbscrews 15, 15, so that it can be shared by many different types of ladders 1 within a certain width.

The embodiment of the present invention has been described in detail above with reference to the drawings. However, the specific configuration of the present invention is not limited to this embodiment, and changes in design within the scope not departing from the gist of the present invention can be made. Even if it exists, it is included in the present invention. For example, the present invention
It can be applied to various ladders such as a swing-out ladder and a folding ladder.

The anti-skid device for a ladder according to the present invention may be used by being provided only on the upper end portion of the ladder, or by being provided only on the other end portion of the ladder.

[0025]

As described above, according to the present invention, it is possible to obtain the anti-slip device for a ladder which can surely improve the sideslip prevention of the ladder. Further, according to the present invention, it is possible to improve the workability of attaching the anti-slip device for a ladder to the ladder.

[Brief description of drawings]

FIG. 1 is a schematic view showing a use state of a slipper for a ladder according to an embodiment of the present invention, (A) is an enlarged view of a main part,
(B) is an overall view.

FIG. 2 is a schematic diagram showing a slip preventer for a ladder,
(A) is a side view, (B) is a front view, (C) is C- of (B).
It is sectional drawing which follows the C line.

[Explanation of symbols]

 1 Ladder 2 Parent post 10 Anti-slip equipment for ladder 11 Mounting body 13 Anti-slip seat plate 14 Frame material 15 Thumbscrew

Claims (2)

[Claims] 1. A ladder slip preventer provided at left and right main post ends of a ladder, wherein the left and right main post ends are attached to and detachable from the attachment body, and the attachment body is swingably coupled to the attachment body. An anti-skid device for a ladder, comprising: an anti-skid seat plate having a width substantially the same as the entire width of the ladder. 2. The mounting body includes a frame member attached to the left and right main pillar ends, and a thumbscrew screwed to the frame member and fastened to the left and right main pillar ends. The anti-slip device for ladder according to claim 1.