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Hair ingestion device and dust protector for vacuum cleaner

a vacuum cleaner and dust protector technology, applied in the field of apparatus for vacuum cleaners, can solve the problems of serious thread problem, ineffective shield type, and failure to pass these tests

Inactive Publication Date: 2006-03-02
SUPERIOR BRUSH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0009] Still a further object of the invention is to prevent threads from damaging the bearing assembly of a vacuum cleaner.
[0015] An additional object is to provide an improved device for both preventing threads from impairing the operation of a vacuum cleaner and for preventing dust from also preventing the proper operation of a vacuum cleaner.

Problems solved by technology

However, this type of shield is not effective since potentially damaging threads bypass the cylindrical wall.
The thread problem is serious in the vacuum cleaner industry, and various companies have established hair ingestion tests in which particular amounts of hair are spread over a prescribed area.
Passing these tests has been a serious problem in the vacuum cleaner industry.

Method used

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  • Hair ingestion device and dust protector for vacuum cleaner
  • Hair ingestion device and dust protector for vacuum cleaner
  • Hair ingestion device and dust protector for vacuum cleaner

Examples

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Embodiment Construction

[0027] Referring first to FIG. 1, one end portion of a dowel assembly 10 is shown on which is mounted an end cap 30. Dowel assembly 10 incorporates a dowel 12. Dowel 12 is shown as being belt driven and has a pair of annular recesses 14 with radial sidewalls 16,18 to collectively form a pulley 19 having a rim 21 for receiving a motor driven drive belt. An annular side end portion 20 of dowel 12 has generally radial tufts of bristles 22 extending therefrom for picking up such dirt as dust and threads coming in their path as dowel 12 is rotated by the vacuum cleaner motor. Tufts of bristles 22 are of a type known in the art. The portion of the dowel assembly is shown in FIG. 1, and the opposite end is nearly identical in configuration and components, although usually only one part of the assembly is provided with the structure for rotating the dowel.

[0028] Dowel 12 rotates about a rod or shaft 24 running along the central longitudinal axis of dowel 12. Rod 24 could extend through the...

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Abstract

A hair ingestion device and dust protector for a vacuum cleaner, and a combination of an end cap and a dowel assembly having a thread cap, wherein a set of arms extends from the thread cap for rotating with the dowel for deflecting threads to avoid contamination of the bearing assembly included in the dowel assembly. The thread cap also includes tapered vanes for cooperating with an end cap to form a dust shield.

Description

BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to apparatus for a vacuum cleaner and, in particular, to a cap or to structure integral with the dowel for preventing threads and other thin items such as both hair and dust from reaching the bearings of a vacuum cleaner and damaging the bearings and the vacuum cleaner itself, and for preventing threads, hair and fibers from clogging or seizing the rotation of the dowel which rotates in the head of the vacuum cleaner. [0003] 2. Description of the Prior Art [0004] Various items are known for preventing or at least reducing contaminants from reaching the bearings of a vacuum cleaner, these bearings often being carried by the dowel assembly of a vacuum cleaner, where the dowel assembly includes a dowel which rotates about its longitudinal axis. The bearings can be of many types, such as ball bearings or bushings, and other friction reducing means. In a popular version of a vacuum cleaner, ...

Claims

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Application Information

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IPC IPC(8): A47L5/30
CPCA47L9/0477A47L9/0455
Inventor MERTES, RICHARD H.FRANTZ, JOSEPH P.
Owner SUPERIOR BRUSH
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