JPH10169345A - Ladder equipped with safety member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a ladder, in which two kinds of safety members are installed to members having the same structure. SOLUTION: In the ladder, in which a plurality of stepping members 1a are mounted between two ladder supports 1 with guide rails 1b, two overhang members 2 stably supporting the ladder are formed, and two movable and freely fixing overhang base members 2b are set up onto each guide rail by using fixing members 4. One end of an overhang member 2 is attached pivotally to the overhang base member 2b of an upper section by using a connecting member 2c, one end of an overhang support member 2a is similarly attached pivotally from a fixed point in the vicinity of the other end, the other end is similarly attached rotatably onto the overhang base member 2b of a lower section, and a distance L from the underside of the ladder support of the overhang member 2 and an overhang angle α can be adjusted by regulating the places of two upper and lower overhang base members 2b. Hook base members 3 with hook members 3a, to which a movable and freely fixing safety belt for an operator can be connected, are mounted on the guide rails 1b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ladder equipped with at least two types of safety equipment using members having the same structure.

[0002]

2. Description of the Related Art Conventionally, a ladder safety retainer having an overhanging member, also called an outrigger, for preventing the ladder from overturning, or a hook member safety device for attaching a worker's safety belt, is attached using individual members. Was.

[0003]

Conventionally, a ladder safety device having an overhanging member called an outrigger and a safety device of a hook member for mounting a safety belt are conventionally mounted using individual members, so that handling is inconvenient. There is a problem that it has a complicated structure and is expensive.

[0004]

In order to solve the above-mentioned problems, a ladder equipped with a safety device according to the present invention is provided with a ladder safety device having an overhang member called an outrigger and a safety band on a guide rail on a ladder support. Of the safety member of the hook member to attach
It is characterized in that it is attached using the same type of base member.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A ladder equipped with safety equipment according to the present invention is a ladder made of metal or the like having a plurality of tread members provided between two ladder supports having guide rails. In order to stably stand on the base, there are formed two pairs of overhang members which have a structure which can be folded outside the ladder plane, also called outrigger, and which stably supports the ladder, and a bolt or the like is fixed on each guide rail. Two overhanging members are provided so as to be freely fixable using members, and one end of the overhanging member is pivotally connected to a screw hole on the upper overhanging member using a connecting member such as a bolt. One end of the overhanging support member is pivotally connected to the vicinity of a fixed point using the connecting member, and the other end is pivotally connected to a screw hole on the lower overhanging member using a connecting member such as a bolt. By adjusting the position of the overhang member, the distance of the overhang member from the lower surface of the ladder support L) and an angle (α) formed between the ladder support and the overhang member can be adjusted, and a stop member such as a bolt is provided at an arbitrary position on the upper part of the guide rail to prevent a worker from falling. At least one hook base member having a hook member that can be connected to a worker's safety belt and that can be freely fixed by using is provided.

In the overhang member of the ladder equipped with safety equipment according to the present invention, the distance (± L) including the up and down from the lower surface of the ladder support of the overhang member can be varied by adjusting the positions of the two overhang members. The ladder support can be fixed and the angle (α) between the ladder support and the overhang member can be adjusted from 0 to a certain value, and at least one of the ladder supports is used as a base for an inclined or uneven base. By using the two overhanging members at both ends, the ladder can be stably supported to prevent overturning, and the angle (α) can be set to 0 to make the structure foldable.

[0007] In the overhang base member and the hook base member of the ladder equipped with safety equipment according to the present invention, a stop member such as a bolt penetrates the screw holes of both base members and presses the bottom of the guide rail. Has a function that can be freely fixed on
It can also be made using the base member having the same size and structure.

In the ladder equipped with safety equipment according to the present invention, the two ladder supports can be applied not only in a case where they are parallel but also in a case where they have a tapered shape such as a trapezoidal triangle.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an embodiment of the present invention. 2 is a side view, FIG. 2 is an enlarged front view of a part of the mounting overhang member (A), (B) is a side view, and (C) is a bottom view.
A ladder provided with a plurality of tread members (1a) between two parallel ladder supports (1) having guide rails (1b) can be folded outside the ladder plane in order to stably rest on a ground or other base. A pair of overhang members (2) for stably supporting the ladder, also called an outrigger having a structure, are formed, two overhang member members (2b) are provided on the guide rail, and a stop member (eg, a bolt) is provided. 4) has a structure that penetrates the screw hole of the overhanging base member, presses the bottom of the guide rail and is movable so as to be able to fix freely, and has a screw hole (2d) on the upper overhanging member.
One end of the projecting member is pivotally connected to the projecting member using a connecting member (2c) such as a bolt, and the projecting support member (2a) is moved from a fixed point near the other end.
Is pivotally attached to the screw hole (2d) on the lower projecting base member (2b) by using a coupling member (2c) such as a bolt. By adjusting the position of the overhanging member, the distance (L) of the overhanging member from the lower surface of the ladder support can be changed, and the angle (α) between the ladder support and the overhanging member can be changed from 0. The ladder can be adjusted to a certain value, the ladder can be prevented from falling over the uneven base, and the ladder can be stably supported and can be folded.

In the safety device equipped ladder of the present invention, as shown in FIG. 3, a hook base member (3a) is provided on the guide rail (1b) to further prevent the worker from dropping, and a bolt or the like is stopped. The member (4) has a structure that penetrates the screw hole of the hook base member, presses the bottom of the guide rail, and is movable so as to be freely fixed at an arbitrary position, and a safety belt of an operator can be connected to the hook base member. The hook member (3) is formed.

[0011]

The present invention is embodied in the form described above and has the following effects.

Since the ladder equipped with safety equipment according to the present invention is provided with two overhanging members at both ends, by adjusting the position of the overhanging member, the overhang from the lower surface of the ladder support to the overhanging member is included. The distance and the angle between the ladder support and the overhang member can also be adjusted. At least one of the ladder supports is grounded to the inclined or uneven base, and the two overhangs at both ends are also provided. The member is grounded, has the effect of stably supporting the ladder and preventing overturning, and allows the overhanging member to have a foldable structure.

[0013] In the ladder equipped with safety equipment of the present invention, at least one hook base member having a hook member capable of connecting the safety belt of the worker is provided on the guide rail so as to be freely fixed, so that the fall of the worker can be prevented. It has the effect of preventing.

In the ladder equipped with safety equipment according to the present invention, two types of safety equipment having an overhang member, also called an outrigger, and a hook member capable of connecting a safety band are simultaneously equipped on the same guide rail, and have the same dimensions and structure. Since the overhang table member and the hook table member can be formed by using the table member, a simple and inexpensive ladder equipped with safety equipment having a simple structure can be secured.

[Brief description of the drawings]

FIG. 1A is a partially cutaway front view and FIG. 1B is a side view of a ladder equipped with safety equipment, showing an embodiment of the present invention.

FIG. 2 (A) is a partially cutaway enlarged front view of a mounting overhang member of a safety device equipped ladder showing an embodiment of the present invention;
(B) is a side view and (C) is a bottom view.

FIG. 3 (A) is a partially cutaway enlarged front view of a mounting hook base member of a ladder equipped with safety equipment according to an embodiment of the present invention;
(B) is a side view and (C) is a bottom view.

[Explanation of symbols]

 Reference Signs List 1 ladder support 1a stepping member 1b guide rail 2 overhang member 2a overhang support member 2b overhang base member 2c connecting member 2d screw hole 3 hook member 3a hook base member 4 stop member L distance of overhang member from lower surface of ladder support α Angle between ladder support and overhang member

Claims (1)

[Claims] 1. A ladder comprising a plurality of stepping members (1a) provided between two ladder posts (1) having guide rails (1b), wherein the ladder has a structure capable of extending and folding outside the ladder posts. A pair of overhanging members (2b) are formed on each guide rail, and two movable overhanging overhanging members (2b) are provided on each of the guide rails using a stopping member (4) such as a bolt. One end of the overhanging member is pivotally mounted on the overhanging member using a connecting member (2c) such as a bolt, and one end of the overhanging support member (2a) is connected from a fixed point near the other end using the connecting member. The other end is pivotally attached to the lower overhang member using the connecting member.
By adjusting the positions of the overhang members, the distance (L) of the overhang member from the lower surface of the ladder support and the angle (α) between the ladder support and the overhang member can be adjusted. At least one hook base member (3) having a hook member (3a) capable of connecting a safety belt of a user is provided at an arbitrary position on an upper portion of the guide rail so as to be movable and fixable using the stopper member. A ladder equipped with safety gear.