GB2322180A - Flexible hose, e.g. for vacuum cleaner, with longitudinal channel - Google Patents
Flexible hose, e.g. for vacuum cleaner, with longitudinal channel Download PDFInfo
- Publication number
- GB2322180A GB2322180A GB9801692A GB9801692A GB2322180A GB 2322180 A GB2322180 A GB 2322180A GB 9801692 A GB9801692 A GB 9801692A GB 9801692 A GB9801692 A GB 9801692A GB 2322180 A GB2322180 A GB 2322180A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hose
- channel member
- channel
- hose assembly
- assembly according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
- F16L11/11—Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall
- F16L11/118—Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall having arrangements for particular purposes, e.g. electrically conducting
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electric Vacuum Cleaner (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The hose 1, e.g. corrugated, with fittings 2 and 3 at opposite ends for connection to the vacuum cleaner suction inlet and to a cleaning head, has a channel 4 bonded to it. A tube 7 or cable extends inside of the channel 4 for supply of cleaning fluid or electrical power to the cleaning head. The tube 7 or cable extends within the channel 4 as a loose fit so that it can move along the channel on flexing of the hose, thereby helping maintain flexibility of the assembly.
Description
HOSE ASSEMBLIES
This invention relates to hose assemblies.
Hose assemblies used with wet and dry vacuum cleaners often include a small-bore tube extending along their length by which cleaning liquid is supplied to the cleaning head.
The cleaning liquid tubing is usually attached to the outside of a hose by means of an outer sleeve that is shrunk about the hose and tube, trapping the tube onto the outside of the hose.
The problem with this arrangement is that, because the tube is fixed in position, it creates a spine along the hose, restricting its flexibility in some directions. A similar problem also exists with hose assemblies having electrical wires incorporated in a similar way, such as for use in providing electrical power to a beater head.
It is an object of the present invention to provide an improved hose assembly.
According to the present invention there is provided a hose assembly comprising a flexible hose, a flexible channel member extending externally longitudinally along
substantially the length of the hose, and an elongate member extending within said channel
member and projecting from the channel member at both ends, the elongate member being
displaceable along the channel member on flexing of the hose assembly.
The channel member is preferably provided by a U-shape member attached to the
hose. The channel member may be bonded to the outside of the hose, such as by a heat bond.
The hose is preferably corrugated and may have a fitting at one end adapted for connection to a vacuum cleaner, and a fitting at its opposite end adapted for connection to a cleaning head.
The elongate member may be a tube for supply of liquid, or an electrical cable.
Hose assemblies for a vacuum cleaner, according to the present invention, will now be described, by way of example, with reference to the accompanying drawing, in which:
Figure 1 is a side elevation view of one form of assembly;
Figure 2 is a transverse sectional side elevation view along the line II-II of
Figure 1; and
Figure 3 is a side elevation view of an alternative assembly.
With reference first to Figures 1 and 2, the hose assembly is for use with a wet-and-dry vacuum cleaner and comprises a conventional hose 1 corrugated extemally and intemally to improve its flexibility. The hose 1 is preferably of a plastics material, such as
PVC, but may be of any conventional material. Typically, the external diameter of the hose is about 40mm. At opposite ends, the hose has moulded-on end fittings 2 and 3, for connection respectively to a vacuum cleaner suction inlet and to cleaning head (neither shown).
Alternatively, the fittings could be screwed onto the hose, or otherwise attached.
The hose assembly also includes a channel member 4 attached to the outer surface of the hose 1 and extending longitudinally along the hose, terminating just short of the end fittings 2 and 3. The channel 4 is made from a strip of PVC about 30mm wide (when flattened) and 1.5mm thick with a hardness of 65 to 75 Shore A. The strip forming the channel 4 is extruded with a U-shape profile having outwardly-projecting edges 5. The edges 5 of the strip are bonded to the outside of the hose 1 by means of a hot air gun, although other techniques could be used, such as a solvent. The channel 4 provides a recess 6 along the outside of the hose 1 in which a flexible tube 7 extends and from which it projects at opposite ends. The tube 7 is of a rubber or plastics material having an external diameter slightly less than the internal dimensions of the recess 6. The tube 7 is not bonded to, or gripped by, the channel member 4, so that it is free to slide along the channel member. In use, the left-hand end of the tube 7 is attached to an outlet spigot of a cleaning fluid pump in the vacuum cleaner, the right-hand end of the tube being attached to the cleaning head, so that cleaning fluid is supplied to the cleaning head.
When the hose assembly is flexed, the channel 4 flexes with it, and the tube 7 is free to move along the channel 4. In this way, the reduction in flexibility of the assembly as a result of the tube, is substantially less than in conventional assemblies where the tube is fixed relative to the hose.
The invention also has application in hose assemblies including alternative elongate members. As shown in Figure 3, the assembly could include an electrical cable 8 of the kind used to supply power to a vacuum cleaner beater head, the cable extending within the channel member 4'.
It will be appreciated that the invention is not confined to vacuum cleaner hose assemblies but could be used with other hose assemblies.
Claims (10)
1. A hose assembly comprising a flexible hose, a flexible channel member extending
externally longitudinally along substantially the length of the hose, and an elongate
member extending within said channel member and projecting from the channel
member at both ends, wherein the elongate member is displaceable along the channel
member on flexing of the hose assembly.
2. A hose assembly according to Claim 1, wherein the channel member is provided by a
U-shape member attached to the hose.
3. A hose assembly according to Claim 1 or 2, wherein the channel member is bonded to
the outside of the hose.
4. A hose assembly according to Claim 3, wherein the channel member is bonded to the
outside of the hose by a heat bond.
5. A hose assembly according to any one of the preceding claims, wherein the hose is
corrugated.
6. A hose assembly according to any one of the preceding claims, wherein the hose has a
fitting at one end adapted for connection to a vacuum cleaner, and a fitting at its
opposite end adapted for connection to a cleaning head.
7. A hose assembly according to any one of the preceding claims, wherein said elongate
member is a tube for supply of liquid.
8. A hose assembly according to any one of Claims 1 to 6, wherein said elongate
member is an electrical cable.
9. A vacuum cleaner hose assembly substantially as hereinbefore described with
reference to the accompanying drawings.
10. Any novel and inventive feature as hereinbefore described.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9801692A GB2322180B (en) | 1997-02-15 | 1998-01-28 | Hose assemblies |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB9703196.7A GB9703196D0 (en) | 1997-02-15 | 1997-02-15 | Hose asemblies |
GB9801692A GB2322180B (en) | 1997-02-15 | 1998-01-28 | Hose assemblies |
Publications (3)
Publication Number | Publication Date |
---|---|
GB9801692D0 GB9801692D0 (en) | 1998-03-25 |
GB2322180A true GB2322180A (en) | 1998-08-19 |
GB2322180B GB2322180B (en) | 2001-06-20 |
Family
ID=26311007
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9801692A Expired - Fee Related GB2322180B (en) | 1997-02-15 | 1998-01-28 | Hose assemblies |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2322180B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1099894A1 (en) * | 1999-11-10 | 2001-05-16 | Plastiflex Europe N.V. | Flexible hose |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1547114A (en) * | 1976-11-08 | 1979-06-06 | Dayco Corp | Polymeric flexible hose construction and method of making same |
GB2066408A (en) * | 1979-12-21 | 1981-07-08 | Kessler & Co Tech Chem Gmbh | Suction hose |
GB2258711A (en) * | 1991-08-16 | 1993-02-17 | Integral Corp | Empty conduit assembly with detachable cable |
EP0601981A1 (en) * | 1992-11-25 | 1994-06-15 | Ariberto Tamborini | Flexible hose for washing exhausting machines for cleaning floors, moquettes, carpets and the like |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2309190A1 (en) * | 1975-04-29 | 1976-11-26 | Mauz & Pfeiffer Progress | Suction hose with built-in electric conductors for vacuum cleaners - mfrd. in one step by extrusion has guide ducts for the conductors |
-
1998
- 1998-01-28 GB GB9801692A patent/GB2322180B/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1547114A (en) * | 1976-11-08 | 1979-06-06 | Dayco Corp | Polymeric flexible hose construction and method of making same |
GB2066408A (en) * | 1979-12-21 | 1981-07-08 | Kessler & Co Tech Chem Gmbh | Suction hose |
GB2258711A (en) * | 1991-08-16 | 1993-02-17 | Integral Corp | Empty conduit assembly with detachable cable |
EP0601981A1 (en) * | 1992-11-25 | 1994-06-15 | Ariberto Tamborini | Flexible hose for washing exhausting machines for cleaning floors, moquettes, carpets and the like |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1099894A1 (en) * | 1999-11-10 | 2001-05-16 | Plastiflex Europe N.V. | Flexible hose |
US6394143B1 (en) | 1999-11-10 | 2002-05-28 | Plastiflex Belgium | Flexible hose |
Also Published As
Publication number | Publication date |
---|---|
GB2322180B (en) | 2001-06-20 |
GB9801692D0 (en) | 1998-03-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |