Magazine moving device of brush type street sweeper truck

Abstract

A magazine moving device of brush type street sweeper truck. A magazine (16) is arranged to move between a dust recovery position on a chassis and a dust discharge position (B) where the dust can be discharged by a lift arm (22). A chain (31) is hung between a first sprocket wheel (29) arranged on a base end of the lift arm (22) and a second sprocket wheel (30), integrated with the magazine (16), arranged at the side of the lift arm (22) near the magazine (16), a pressure cylinder (32, 33) arranged on a support framework (9) is connected on a first sprocket wheel (29). In the dust discharge position (B), the magazine (16) is rotated by the pressure cylinder (32, 33) through first and second sprocket wheels (29, 30) and the chain (31). The pressure cylinder )32, 330 is arranged on the support framework (9), thus a pipe to the pressure cylinder is processed simply and the magazine side is changed to be light.

Description

technical field [0001] The present invention relates to a brush that moves a hopper between a dust recovery position capable of recovering dust and a dust discharge position capable of discharging dust on a chassis, and is capable of discharging dust from the hopper at the dust discharge position The bucket mobile device of the type road sweeper. Background technique [0002] The structure described in Unexamined-Japanese-Patent No. 2008-285928 (henceforth "patent document 1") is known about the bucket moving apparatus of a brush-type road sweeper. It rotates the lift arm by extending the 1st and 2nd cylinders, and the bucket is placed on the chassis at the dust collection position in front of the conveyor device. It moves to the rear of the car body through the conveyer device and the upper part of the main brush. At this time, there is a first sprocket coaxially fixed to the fulcrum shaft of the pillar erected on the chassis, and a first sprocket with a diameter ratio co...

AI Technical Summary

Problems solved by technology

[0003] However, in the bucket moving device of the brush-type road sweeping vehicle described in Patent Document 1, the bucket is moved due to the extension action of the third pressure cylinder provided on the bucket that moves from the dust collection position to the dust discharge position. The bucket tilts, so it is necessary to install the piping for supplying the pressure fluid to the third pressure cylinder

Therefore, there is a problem that the distance of the piping becomes longer in order to pipe to the moving third cylinder, or that the piping is arranged so that the piping does not interfere when the third cylinder moves, or that the handling of the piping becomes complicated.

In addition, since the third pressure cylinder is provided on the bucket, the bucket side, which is the lifting arm on the moving side, becomes heavier, that is, the bucket becomes heavier, and it takes a long time to move the bucket from the dust collection position to the dust discharge position. big force problem

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