Three part tube

Inactive Publication Date: 2010-12-09
AB ELECTROLUX
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0016]In accordance with an embodiment of the telescopic tube for a vacuum cleaner as defined in claim 8, the outer tube has a larger diameter than the first inner tube and the second inner tube, and the second inner tube has a larger diameter than the first inner tube. Thus, the first inner tube can be retracted into the second inner tube, which in turn can be retracted into the outer tube. This allows for achieving a reduced length of the telescopic tube in the fully retra

Problems solved by technology

A problem with this known three-part telescopic tube is that the adjusting the leng

Method used

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Examples

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Example

[0028]Referring to FIG. 1a), there is shown a schematic drawing of a telescopic tube for a vacuum cleaner 10 according an embodiment of the present invention. The telescopic tube 10 comprises a first inner tube 11, herein after referred to as the lower tube 11, a second inner tube 12, herein after referred to as the upper tube 12, and an outer tube 13. The upper tube 12 is arranged to be longitudinally movable inside the outer tube 13, while the lower tube 11 is arranged to be longitudinally movable inside the upper tube 12 and the outer tube 13. Hence, the outer tube 13 can encompass at least a portion of the upper tube 12 and at least a portion of the lower tube 11. In this embodiment the outer tube 13 is of about the same length as, but somewhat shorter than, the lower tube 11 and upper tube 12. Hence, the outer tube 13 contributes to a substantial part of the fully extended telescopic tube 10, while at the same time allowing the inner tubes, 11 and 12, to be almost fully retract...

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Abstract

This invention relates to a telescopic vacuum cleaner tube comprising a first inner tube, a second inner tube, and an outer tube, wherein the first and second inner tubes are arranged to form first and second telescopic links relative to first and second end portions of the outer tube, respectively. The outer tube forms the intermediate tube of the three-part tube while at the same time being fully accessible in any position, whereby one common grip for operating both of the two respective telescopic links, formed by the first and second inner tubes and the intermediate outer tube, of the three part telescopic tube is obtained.

Description

FIELD OF THE INVENTION[0001]The present invention relates to a telescopic tube for a vacuum cleaner, and more particularly to a three part telescopic tube.BACKGROUND OF THE INVENTION[0002]The idea of using telescopic tubes to be able to adjust the length of a vacuum cleaner tube is known. One advantage with telescopic vacuum cleaner tubes is to be able to optimize the tube length for a specific cleaning task or for the height of a person that is using the vacuum cleaner. Telescopic tubes also provide the benefit of minimizing the length of the tube when not in use, thus facilitated storage is provided.[0003]The basic concept of telescopic tubes is to have an inner tube that is movably arranged within an outer tube. The tubes are further provided with a locking member, for instance a simple form of recess and engagement means that is released by means of a control mechanism, for instance by pressing down a release button, while the user pushes or pulls out the movable tube with respe...

Claims

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Application Information

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IPC IPC(8): A47L9/02
CPCA47L9/244
Inventor JONSSON, STEFANTRYDEGARD, ANNA-KARINSVANTESSON, ESBJORNPOHL, ANDREASTROBERG, HENRIK
Owner AB ELECTROLUX
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