JPH0242743Y2

JPH0242743Y2 -

Info

Publication number: JPH0242743Y2
Application number: JP13824384U
Authority: JP
Priority date: 1984-09-11
Filing date: 1984-09-11
Publication date: 1990-11-14
Also published as: JPS6154050U

Description

【考案の詳細な説明】この考案は、マンホールの基本形状を改良し、
管渠内の掃除・補修点等が容易にかつ安全にでき
るようにしたものである。[Detailed explanation of the invention] This invention improves the basic shape of the manhole,
This makes it easy and safe to clean and repair the inside of the pipe.

従来のマンホールは、管渠の横断面が円型を基
本として形成されているために、作業空間が小さ
く、又こうした基本形状の制約から必然的に管渠
の片側のみに足掛金具の植設が限定されるので、
管渠内で足掛金具の反対方向への移動ができず、
昇降及び作業の安全が損われていた。 In conventional manholes, the cross section of the pipe is basically circular, so the work space is small, and due to the limitations of this basic shape, it is necessary to install foothold fittings only on one side of the pipe. is limited, so
The foothold fitting cannot be moved in the opposite direction inside the culvert,
The safety of lifting and work was compromised.

また、管渠の載積個数の多い深度の深い管渠に
おいては、管渠内の中間において足場の仮設が不
可能であつたために、出入りにおいて心理的な不
安感が大きく、また工具等の置き場がなく、作業
効率が悪いうえに、管渠内での休憩等の場所を得
ることができず、作業が危険であるのが現状であ
る。 In addition, in deep pipes with a large number of pipes, it was impossible to temporarily install scaffolding in the middle of the pipe, which caused a great sense of psychological anxiety when entering and exiting the pipe, and there was also a lack of storage for tools, etc. The current situation is that the work is not only inefficient, but also dangerous because there is no place to take a break inside the culvert.

この考案は、これ等の欠点を簡単な構造で改良
したものである。 This invention improves these drawbacks with a simple structure.

第１図は、本考案の長円斜壁１の平面図であ
り、第３図は、長円直壁２の平面図であるが、管
渠の内周壁３及び外周壁３′によつて形成される
横断面は、それぞれほぼ長円形を形成し、この内
周壁３に足掛金具４，４′を各対向させて植設す
る。 FIG. 1 is a plan view of the oblong oblique wall 1 of the present invention, and FIG. 3 is a plan view of the oblong straight wall 2. The formed cross sections each form a substantially oval shape, and the foot hooks 4, 4' are installed on the inner circumferential wall 3 so as to face each other.

前記のごとく形成された本考案の管渠を提供す
ることにより、管渠の内周壁３によつて形成され
る横断空間は、足掛金具取付突起を付加した長円
形に形成されるために、足掛金具４，４′を各対
向させて植設しても、管渠内での作業及び昇降に
必要な空間は充分に得ることができる。 By providing the pipe of the present invention formed as described above, the transverse space formed by the inner circumferential wall 3 of the pipe is formed into an oval shape with the footrest attachment protrusion added. Even if the foothold fittings 4, 4' are installed so as to face each other, a sufficient space can be obtained for working in the pipe and for lifting and lowering.

また、管渠内の随意の位置に第３図及び第４図
に示すごとく各対向する足掛金具４，４′を利用
して適宜な平板をさし渡すことにより仮設足場５
を極めて容易に構築できる。 Additionally, as shown in Figures 3 and 4, temporary scaffolding 5 can be constructed by passing an appropriate flat plate at an arbitrary position within the culvert using the opposing foothold fittings 4, 4'.
can be constructed extremely easily.

このように、足掛金具が各対向して植設されて
いるので、管渠内での反対方向への移動も容易で
あり、複数の人間が同位置で同時に作業すること
ができるので、重量物等の搬出入も容易であり、
また、仮設足場５を適宜の位置に必要に応じて形
成することにより、管渠内の補修、掃除等に要す
る用具、備品等を管渠内の意図する場所に置くこ
とができる。 In this way, since the footrests are installed facing each other, it is easy to move in the opposite direction within the pipe, and multiple people can work in the same position at the same time, reducing weight. It is easy to carry things in and out,
Furthermore, by forming the temporary scaffolding 5 at an appropriate position as needed, tools, equipment, etc. required for repairing, cleaning, etc. inside the pipe can be placed at the intended location within the pipe.

更に、仮設足場を利用して管渠内で一時的な休
息を得ることもできるので、深度の深い管渠内の
作業においても安全であり、作業効率が著しく向
上するなどの多くの利点がある。 Furthermore, temporary scaffolding can be used to take a temporary break inside the culvert, making it safer to work in deep culverts, and has many advantages such as significantly improving work efficiency. .

また、従来の円形のマンホールにおいても（例
えばJISA5317）直径が比較的に大であれば、本
考案のごとく足掛金具を内周壁で各対向させても
植設することにより本考案と同一の効果を得るこ
とができる。 In addition, even in conventional circular manholes (for example, JISA5317), if the diameter is relatively large, the same effect as the present invention can be obtained by installing the foot hooks facing each other on the inner peripheral wall as in the present invention. can be obtained.

[Brief explanation of the drawing]

第１図は、本考案に係る長円斜壁の平面図であ
る。第２図は、本考案に係る長円斜壁の底面図で
ある。第３図は、本考案に係る長円直壁の平面図
である。第４図は、本考案に係る長円斜壁及び長
円直壁を載積した縦断面図である。１は長円斜壁、２は長円直壁、３は内周壁、
３′は外周壁、４及び４′は足掛金具、５は仮設足
場。 FIG. 1 is a plan view of an oblong oblique wall according to the present invention. FIG. 2 is a bottom view of the oblong oblique wall according to the present invention. FIG. 3 is a plan view of an oblong straight wall according to the present invention. FIG. 4 is a vertical cross-sectional view of a stacked oblong oblique wall and an oblong straight wall according to the present invention. 1 is an oblong oblique wall, 2 is an oblong straight wall, 3 is an inner peripheral wall,
3' is the outer peripheral wall, 4 and 4' are footrests, and 5 is temporary scaffolding.

Claims

[Scope of utility model registration request]

In a manhole pipe in which a plurality of oblong straight walls 2 are stacked, an oblong oblique wall 1 is placed on top of the oblong straight walls 2, and a perforated cover is placed on the top of the oblong oblique wall, the above-mentioned Inner peripheral wall 3 and outer peripheral wall 3' of the oblong straight wall and oblong oblique wall
is approximately oval, and the inner peripheral wall 3 of each of these pipes
A manhole with elliptical opposed leg hooks, characterized in that opposing foot hooks 4, 4' are installed in the manhole.