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Telescopic vacuum cleaner suction hose

A vacuum cleaner, retractable technology, applied in the direction of vacuum cleaners, suction hoses, cleaning equipment, etc.

Inactive Publication Date: 2007-06-13
ROXXAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this known retractable vacuum cleaner suction pipe seems to need to be supplemented with respect to its axial length adjustment.

Method used

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  • Telescopic vacuum cleaner suction hose
  • Telescopic vacuum cleaner suction hose

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] A retractable vacuum cleaner suction pipe is always indicated by reference numeral 10 in the figures.

[0022] The telescoping vacuum cleaner suction pipe 10 has an outer pipe 11 , an inner pipe 12 axially displaceable in the outer pipe, and finally an additional outer pipe 13 telescopically overlapping the outer pipe 11 .

[0023] The inner tube 12 has a plurality of buckling grooves 15 protruding away from the outer surface 14 of the inner tube toward the central axis M of the tube. On the contrary, the outer tube has a plurality of second snap-in grooves 16 which open outward away from the outer surface 17 of the outer tube and the central axis M of the tube. Therefore, the bottom surface of each second locking groove 16 is consistent with the outer surface 17 of the outer tube and thus constitutes an undeformed tube wall region 35 .

[0024] The additional outer tube 13 of the telescopic overlapping outer tube 11 has no snap-in grooves and is smooth overall. All t...

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PUM

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Abstract

A telescopic dust cleaner suction pipe (10) consists of one outer pipe (11) and an axially slidable inner pipe (12) that has lock recesses (15) along the coating line from the inner pipe outer coating surface (14) to the pipe central axis (M) having inward projecting locking recesses (15). The locking recesses operate with at least one adjustment body (24) that alternately locks or releases on the outer pipe's held adjustment device (18). The outer pipe has a second locking recess (16) open wide away from outer surface (17) and the pipe central axis (M). The outer pipe (11) is joined by an accessional outer pipe (13), the end face to the adjustment device (18) hold an accessional adjustment device (21), at least one adjustment body (24) operates with each second locking recess (16) of the outer pipe (11).

Description

technical field [0001] The invention relates to a retractable vacuum cleaner suction pipe according to the preamble of claim 1 . Background technique [0002] One such retractable vacuum cleaner suction tube is described in EP 1 033 103 B1. The retractable vacuum cleaner suction tube known from EP 1 033 103 B1 is advantageous in particular due to the low manufacturing and assembly costs. However, this known retractable vacuum cleaner suction tube appears to require supplementation with regard to its axial length adjustment. Contents of the invention [0003] Starting from the telescopic vacuum cleaner suction pipe according to EP 1 033 103 B1, the object of the present invention is to provide a telescopic vacuum cleaner suction pipe which is universally operable with regard to its axial length adjustment. [0004] In combination with the features of the preamble of claim 1, this object is achieved according to the features indicated in claim 1 in that the outer tube has ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A47L9/24
CPCA47L9/244A47L9/24
Inventor 于尔根·希曼
Owner ROXXAN
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