JPH0391276U

JPH0391276U -

Info

Publication number: JPH0391276U
Application number: JP15111089U
Authority: JP
Priority date: 1989-12-29
Filing date: 1989-12-29
Publication date: 1991-09-18

Description

[Brief explanation of drawings]

第１図は本考案に係る管内走行作業車の一実施
例を示す構成図、第２図は第１図の管内走行作業
車の支脚のギア部分を示す要部構成、第３図は第
１図の管内走行作業車の管に対する走行位置を示
す説明図、第４図は従来の管内走行作業車の構成
図、第５図は地中に埋設した管の敷設形状を示す
説明図、第６図は第４図の管内走行作業車の曲管
部分を走行する状態を示す説明図である。２１……管内走行作業車、２３……管、２４…
…台車本体、２５ａ，２５ｂ，２６ａ，２６ｂ…
…支脚、３０……走行ローラ、３１，３２……ギ
ア、３３，３４……拡開装置、３５……作業具。 Fig. 1 is a configuration diagram showing an embodiment of the in-pipe working vehicle according to the present invention, Fig. 2 is a main part configuration showing the gear part of the support leg of the in-pipe working vehicle in Fig. 1, and Fig. Fig. 4 is a configuration diagram of a conventional pipe-traveling work vehicle; Fig. 5 is an explanatory diagram showing the laying shape of a pipe buried underground; This figure is an explanatory view showing the state in which the in-pipe traveling work vehicle of FIG. 4 travels in a curved pipe section. 21... In-pipe traveling work vehicle, 23... Pipe, 24...
...Body body, 25a, 25b, 26a, 26b...
... Support leg, 30 ... Traveling roller, 31, 32 ... Gear, 33, 34 ... Expansion device, 35 ... Working tool.

Claims

[Scope of utility model registration request]

In a work vehicle that travels within a jurisdiction, a plurality of two pairs of support legs are rotatably supported on a trolley body equipped with a work tool, and a fan-shaped gear is provided on the support side of each pair of support legs. Gears between each pair of supporting legs are meshed so that each pair of supporting legs can rotate by the same amount at all times, and a running roller that rolls on the inner surface of the pipe is pivotally supported at the tip of the supporting leg. An in-pipe traveling work vehicle characterized by being provided with an expanding device for pressing a traveling roller against the inner surface of the pipe.