JP2747821B2 - Footwear for manholes - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a footrest for a manhole or the like having a foot portion, side portions located on both sides of the foot portion, and a leg portion provided at a tip of the side portion.

[0002]

2. Description of the Related Art As shown in, for example, Japanese Utility Model Publication No. 4-4040, this type of conventional footrest for a manhole or the like has a foot portion and side portions located on both sides thereof in side view. It was located on the same plane, there was only one foot part, and a grip part was formed only on that foot part. In addition, reflectors are embedded in the upper and lower surfaces near both end portions of the foot portion.

[0003]

However, in the known device, the foot portion and the side portions located on both sides of the foot portion are located on the same plane in a side view, and only one foot portion is provided. In addition, since the grip portion is formed only on the foot portion, the foot may be slid from the foot portion depending on the posture of the climber when ascending or descending in the manhole or the like using the footrest device. In addition to the possibility of stepping off, there is a possibility that the grip portion is so narrow that it is difficult to grip and hinders ascending and descending. In addition, there is a problem that it is not possible to stand in a stable state by expanding the legs in a manhole or the like.

In the above-mentioned known device, since the reflectors are embedded in the upper and lower surfaces near the both end portions of the stepping portion, it is easy to confirm the footrest at the time of ascending and descending. There is also a problem that it is not easy to confirm the footrest tool from the user, which is inconvenient at the time of emergency evacuation or the like.

The present invention has been made in view of the above-mentioned problems of the prior art, and an object of the present invention is to make it possible for an ascendant's foot to be lifted when using a footrest. It is difficult for the foot to be removed from the tread, and the hand can grasp the footrest several steps above with a natural body, so that it can be moved up and down stably and stably standing on the footrest, etc. It is intended to provide a hanging tool.

A further object of the present invention is to provide a foothold for a manhole or the like in which the position of the footrest can be easily confirmed from anywhere.

[0007]

In order to achieve the above-mentioned object, a footrest for a manhole or the like according to the present invention is provided with a rising portion which is separated from both ends of a stepping portion and separate from side portions and rises upward. And a horizontal second step portion is formed from the tip of each rising portion.

[0008] Further, a reflector is provided near both ends of the stepping portion and at the tip of each second stepping portion.

[0009]

1 to 3 relate to an embodiment of the present invention. FIG. 1 is a plan view of a footrest, FIG. 2 is a front view thereof, and FIG. 3 is a side view thereof.

[0010] In the drawings, reference numeral 1 denotes the entirety of a footrest.
Except for the legs 4, 4 provided at the tip of 3, a rust-proof coating of a synthetic resin such as polypropylene is provided. The footrest 1 is fixed to a manhole or the like with the legs 4, 4 embedded in a concrete 5 such as a manhole as shown in FIG.

Reference numeral 6 denotes a first stepping portion formed on the footrest 1, and a large number of non-slip patterns 7 are provided on the upper surface of the stepping portion 6 so as to prevent the foot of the climber from slipping. The grip portion 8 is formed in the axial direction so that the foot portion 6 can be gripped by an elevating person by hand.

As shown in FIGS. 2 and 3, rising portions 9, each having a height of about 15 cm, are formed separately from the side portions 3 and 3 from both ends of the foot portion 6 and directed upward. The diameters of the rising portions 9 and 9 are also formed so that a person who can climb or descend can grasp it by hand.

[0013] At the tip of the rising portions 9, 9,
Horizontal second footsteps 10, 10 are formed, and like the footsteps 6, the second footsteps 10, 10 are provided with a large number of anti-slip patterns 11, 11 are formed in the axial direction, respectively, and the second foot 1
The diameters of 0 and 10 are also formed such that the elevating person can grasp it by hand. The horizontal second foot step 10 may be bent toward a manhole wall or the like as shown by a virtual line in FIG.

Since the footrest for a manhole or the like having the above-described structure is used, a large number of the footrests 1 are installed on the manhole or the like at intervals of about 30 cm in the vertical direction. 1
When ascending and descending by using the footrest, the elevating person puts his / her foot on the foot part 6 of one footwear, and the footwear 1 on several steps (for example, three steps) thereof
Foot portion 6, second foot portion 10, 10 or rising portion 9, 9
It is possible to hold the footholding tool 1 easily by grasping it with any hand and moving up and down in any posture.

Since the rising portions 9, 9 are formed upward from both ends of the foot portion 6, when the elevating person slides his / her foot off the foot portion 6, the rising portion 9, 9 rises. 9 prevents the person from stepping off, so that the elevating person can stably go up and down.

The elevating person and the foot step 6 of the footrest tool 1
If the foot is moved up and down by sequentially putting the feet on the foot steps 10, 10, it is possible to move up and down with a small width.
If the foot is placed on the base 10, the foot can be spread and the user can stand in a stable state, so that the worker can work safely even when working during the ascent and descent.

Further, reflectors 12 are provided near both ends of the foot portion 6.
In the case where the reflectors 13 are also provided at the tips of the second footrests 10, respectively, the climber can lift the footsteps of the footrest 1 even in a dark manhole or at night. 6 and the positions of the second foot portions 10, 10 can be easily confirmed, and the vehicle can be safely moved up and down. Further, the position of the footrest 1 can be easily confirmed from any direction.

[0018]

According to the first aspect of the present invention, rising portions are formed upward from the opposite ends of the foot portion separately from the side portions, and are formed horizontally from the leading ends of the rising portions. Since the two foot portions are formed, it is difficult for the elevating person's feet to be stepped off from the foot portions when ascending and descending using the foot devices, and the hands are naturally placed on the foot devices that are several steps above. It can be gripped, can be raised and lowered with a small width, and can be stably standing on a footrest.

According to the second aspect of the present invention, in the case where reflectors are provided near both ends of the foot portion and at the tip of each second foot portion, the above effects can be expected. The presence of the reflector makes it possible to confirm the position of each stepping portion, and to provide a footrest for a manhole or the like in which the position of the footrest can be easily confirmed from anywhere.

[Brief description of the drawings]

FIG. 1 is a plan view of a footrest for a manhole or the like according to an embodiment of the present invention.

FIG. 2 is a front view of the same.

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

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Footrest 3 Side part 4 Leg part 6 Foot part 9 Rise part 10 2nd step part 12,13 Reflector

Claims (2)

(57) [Claims] 1. A footrest having a foot portion, side portions located on both sides thereof, and a leg portion provided at a tip of the side portion, wherein each of the foot portions is separated from the both ends of the foot portion and separated from the side portion. A footrest for a manhole or the like, characterized in that a rising portion is formed toward the front, and a second horizontal step portion is formed from the tip of each rising portion. 2. A foothold device for a manhole or the like according to claim 1, wherein reflectors are provided near both ends of said stepping portion and at the tip of each second stepping portion.