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External filter chamber and shaking apparatus

A filter and air filter technology, applied in the direction of combination device, transportation and packaging, dispersed particle filtration, etc., can solve the problem of dust aroused by the machine

Inactive Publication Date: 2012-10-03
TENNANT COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During their normal operation, these machines tend to stir up dust from the surfaces being maintained

Method used

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  • External filter chamber and shaking apparatus
  • External filter chamber and shaking apparatus
  • External filter chamber and shaking apparatus

Examples

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Embodiment Construction

[0020] In the following description of the invention a conventional forward throwing rotary broom sweeper will be used as an example. It should however be understood that, as already stated, the invention may also be applied to other types of mobile surface maintenance machines, for example other types of rotary broom sweepers, road finishers and various types of vacuum sweepers.

[0021] refer to figure 1 , shows a cleaning machine 10 of an industrial trader. As shown, machine 10 is a forward throw sweeper having a predetermined direction of motion indicated by arrow mark FM. Machine 10 may also be an overhead back funnel sweeper of the type also well known in the art. The machine 10 has a rotating cylindrical brush 12 for sweeping debris from a floor or other surface into a debris hopper 13 . Funnel arms (not shown) allow the funnel 13 to be lifted during the dumping process. The brush chamber generally surrounds the brush 12 below the skirt 14 to control airflow around ...

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Abstract

An external filter box for a surface maintenance machine having a hopper with selective communication being provided between the filter box and the hopper to permit dusty air to flow from the hopper to the filter box and to permit dust and debris captured by the filter box to flow into the hopper. In one example, the hopper includes a prefilter assembly which is coupled to an inlet of the filter box during a sweeping operation and which is removed away from the filter box during a hopper dump procedure.

Description

technical field [0001] The invention relates to a filter system for a mobile surface maintenance machine. More specifically, the present invention relates to a filtration system using a filter chamber external to the debris funnel. Background technique [0002] Over the years, a variety of machines have been developed for cleaning and maintaining floors within buildings as well as paved outdoor areas such as streets, sidewalks and parking lots. These machines include such machines as rotary broom sweepers, vacuum sweepers, roller finishers, roller finishers, polishers and scrubbers. For the purposes of the invention herein, these machines can be divided into those that apply water to the surface being maintained and those that operate dry. We are concerned with the latter machines, which include many vacuum sweepers, road finishers and rotary broom sweepers. These machines all have a problem that the present invention aims to solve. In their normal operation, these machi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01H1/04
CPCE01H1/0854E01H1/0827B01D46/2411A47L11/24A47L11/4025A47L11/4033B01D46/76B01D50/20
Inventor K·C·阿代尔曼R·W·韦伦斯M·T·巴沙姆K·汉森
Owner TENNANT COMPANY