Portable blower

Abstract

A portable blower unit (1) includes a housing (2). A device for guiding the blower unit (1) over the ground (6) can be fixed to the housing (2) in order to facilitate a multi-use of the blower unit (1).

Description

CROSS REFERENCE TO RELATED APPLICATION [0001] This application claims priority of German patent application no. 103 59 749.2, filed Dec. 19, 2003, the entire content of which is incorporated herein by reference. BACKGROUND OF THE INVENTION [0002] A known portable blower includes a handle with which the blower can be guided manually. Blowers are also known which can be carried on the back of an operator. Blowers of this kind can be used in many ways because the operator is not dependent upon easily accessible ground such as pathways or the like as is the case in moveable blowers. However, the operator must always carry the blower. This leads to rapid fatigue of the operator. SUMMARY OF THE INVENTION [0003] It is an object of the invention to provide a portable blower of the kind referred to above which can be used in many ways and which reduces fatigue of the operator. [0004] The portable blower arrangement of the invention includes: a blower unit including a housing; a device for gu...

AI Technical Summary

Benefits of technology

[0005] A device for guiding the blower unit over the ground can be fixed to the housing of the blower unit. In this way, the blower unit can be converted into a ground-guided blower unit in a simple manner. When used as a ground-guided blower unit, the operator need not carry the weight of the apparatus whereby the load on the operator is considerably reduced. In this way, fatigue-free utilization of the blower unit is possible. In inaccessible terrain, the device can be separated from the blower unit and the blower unit can be used as a portable blower unit. In this way, the blower unit can be used in many ways.

[0006] During operation, the blower unit blows out air through a discharge pipe which is configured as a short stub. The blower arrangement has a blower tube which can be releasably attached to the discharge pipe. In order to use the blower unit as a back-carried blower unit, a blower tube is needed which conducts the air flow, which is generated by the blower unit, around the body of the operator toward the front so that the operator can direct the air flow to the location of utilization. With the blower tube, considerable flow losses, however, result. To reduce these flow losses when utilizing the blower unit as a ground-guided blower unit, the blower tube is attached to the discharge pipe so as to be releasable so that the blower unit, when utilized as a ground-guided blower unit, can be utilized without the blower tube. With the configuration of the discharge pipe as a short stub, considerable increases in performance are obtained when utilizing the blower unit as a ground-guided blower arrangement compared to the use of the blower unit having the blower tube.

[0007] Advantageously, the blower unit has an operator-controlled unit with a throttle lever with this operator-controlled unit being releasably fixable to the blower arrangement. The disposition of the operator-controlled unit on the arrangement makes possible a simple, ergonomic handling during operation of the blower unit as a ground-guided blower arrangement. The operator-controlled unit includes a collar for fastening the operator-controlled unit to the blower tube. In this way, an ergonomic handling is made possible also during use of the blower unit as a back-carried blower unit. The collar functions to fix the operator-controlled unit to the blower tube as well as to fix the operator-controlled unit to the apparatus. The blower unit can therefore be used as a back-carried blower unit as well as a ground-guided blower unit without additional devices being needed for the conversion. The blower arrangement advantageou

Problems solved by technology

With the blower tube, considerab

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