WO2008096323A2 - Swivel coupler - Google Patents
Swivel coupler Download PDFInfo
- Publication number
- WO2008096323A2 WO2008096323A2 PCT/IB2008/050440 IB2008050440W WO2008096323A2 WO 2008096323 A2 WO2008096323 A2 WO 2008096323A2 IB 2008050440 W IB2008050440 W IB 2008050440W WO 2008096323 A2 WO2008096323 A2 WO 2008096323A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tubular members
- coupler
- swivel coupler
- pool
- swivel
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H4/00—Swimming or splash baths or pools
- E04H4/14—Parts, details or accessories not otherwise provided for
- E04H4/16—Parts, details or accessories not otherwise provided for specially adapted for cleaning
- E04H4/1618—Hand-held powered cleaners
- E04H4/1636—Suction cleaners
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H4/00—Swimming or splash baths or pools
- E04H4/14—Parts, details or accessories not otherwise provided for
- E04H4/16—Parts, details or accessories not otherwise provided for specially adapted for cleaning
- E04H4/1618—Hand-held powered cleaners
- E04H4/1636—Suction cleaners
- E04H4/1645—Connections to the pool water circulation system
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H4/00—Swimming or splash baths or pools
- E04H4/14—Parts, details or accessories not otherwise provided for
- E04H4/16—Parts, details or accessories not otherwise provided for specially adapted for cleaning
- E04H4/1654—Self-propelled cleaners
- E04H4/1663—Self-propelled cleaners the propulsion resulting from an intermittent interruption of the waterflow through the cleaner
-
- 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
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/08—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe
- F16L27/0804—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another
- F16L27/0808—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another the joint elements extending coaxially for some distance from their point of separation
- F16L27/0824—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another the joint elements extending coaxially for some distance from their point of separation with ball or roller bearings
- F16L27/0832—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another the joint elements extending coaxially for some distance from their point of separation with ball or roller bearings having axial bearings
Abstract
The invention provides a swivel coupler (10), for connecting a pool cleaner operatively to a flexible hose. The coupler (10) includes two open ended tubular members (16, 18) arranged in end-to-end axially aligned relationship. A collar member (24) retains the tubular members (16, 18) and connects the tubular members together in a manner which permits relative rotation of the tubular members about an axis (20) and inhibits excessive relative axial displacement. A plurality of ball bearing elements (42) is arranged between opposed faces of the tubular members (16, 18).
Description
SWIVEL COUPLER
THIS INVENTION relates to swimming pool cleaning accessories. In particular, the invention relates to a swivel coupler for connecting a pool vacuum cleaner head operatively to a flexible pool hose end.
A person skilled in the art will appreciate that efficiency of steering operations inherent to submersible surface pool cleaners may be impaired under the influence of twisting and looping of a flexible pool hose connected statically at its associated end to a pool cleaner head. It may be desirable to free the pool cleaner head from or at least reduce the influence of the pool hose on the pool cleaner head.
The invention provides a swivel coupler for connecting a pool cleaning device operatively to a flexible pool hose, which coupler includes: two open ended tubular members arranged in end-to-end axially aligned relationship; a plurality of bearing elements positioned between the tubular members; and a collar member cooperating with the two tubular members to retain them in their end-to-end relationship, the collar member being shaped and sized to define working clearances permitting independent rotation of the tubular members relative to each other and of at least one of the tubular members relative to the collar member about the axis.
The tubular members may be shaped and sized for retro-fitment inline between attachment arrangements associated with a pool cleaner and a flexible pool hose end, respectively.
The tubular members may define between opposed faces thereof an annular bearing race-way in which the bearing elements are positioned.
The two open ended tubular members may each include a generally circular cylindrical body having a flanged end, the cylindrical bodies being arranged in end-to-
end relationship axially aligned with their flanged ends facing each other, the facing flanges defining jointly between them the bearing race-way.
Each flange may comprise a uniformly shaped rim extending radially outwardly from the tubular member flush with the associated end of the tubular member, so as to define a major annular flange face, the facing flanges each defining in its major annular face, a circumferentially extending annular recess which is concentric with an axis of the associated tubular member and which is semi-circular in section, so that the recesses define jointly between them the rotary bearing race-way, the bearing elements being contained in the bearing race-way.
The collar member may include a collar body comprising a generally flat annular collar wall having spaced apart retainer protuberances projecting radially inwardly from the wall, the protuberances being spaced apart to define a retainer space between them, the collar cooperating with the tubular members by straddling the facing flanges to retain the tubular members in their end-to-end relationship, the collar member being configured to define working clearances permitting independent rotation of the tubular members relative to each other and relative to the collar member about the rotational axis and inhibiting excessive relative axial movement of the tubular members.
It will be appreciated that a working clearance between adjacent bearing elements is desirous to permit free rolling of the baring elements along the roller bearing race-way without operational hindrance from adjacent bearing elements.
One protuberance may comprise a uniformly shaped rib projecting radially inwardly from a peripheral end edge of the circular collar wall. Another retainer protuberance may include a circumferentially extending elevated generally planar formation projecting radially inwardly from en inside surface of the collar wall. In one embodiment of the invention, the two flanges are held loosely captive between a uniformly shaped rib and an opposing spaced apart elevated planar formation, as described above, the ribs standing proud of the planar formation.
The tubular members may each include an attachment arrangement for retro-fitment inline between attachment arrangements respectively associated with a
pool cleaner head water outlet end and a flexible hose water inlet end. The attachment arrangements of the tubular members may include the tubular member being shaped and sized to form a socket-type or nipple-type adaptor for co-operative attachment to a nipple-type or socket-type attachment arrangement at a pool cleaner water outlet end or at a flexible pool hose water intake end as the case may be.
The swivel coupler may be formed entirely from a synthetic plastics, or polymeric material. The tubular members may be formed from a material, at least a major constituent of which is acetal. The bearing elements may be formed from a material, at least a major constituent of which is styrene
The invention further provides a swivel coupler for connecting a pool cleaning device operatively to a flexible pool hose, which coupler includes two open ended tubular members which are arranged end-to-end and are connectable respectively to a pool cleaning device and a flexible hose to connect the device and the hose in flow communication; and a plurality of bearing elements positioned between the tubular members to facilitate relative angular displacement between the members, the bearing elements being formed from a material at least a major constituent of which is styrene.
Each tubular member may be moulded of a synthetic plastics material.
Each tubular member may be formed from a material, at least a major constituent of which is acetal.
The invention will now be described by way of example with reference to the accompanying diagrammatic drawings, in which:
Figure 1 is a schematic side elevational view of a swivel coupler, in accordance with the invention, as seen along a section taken along a longitudinal axis of rotation;
Figure 2 is a schematic side elevational view of a collar member forming part of the swivel coupler in Figure 1 , as seen along a same section as the swivel connecter in Figure 1 ; and
Figure 3 shows a three-dimensional view of the swivel coupler in Figure 1 , in use, connecting a pool cleaner head operatively to a flexible pool hose.
In the drawings, reference numeral 10 generally indicates a swivel coupler, in accordance with the invention, for connecting a pool cleaner 12 (see Figure 3) operatively to a flexible pool hose 14. The swivel coupler 10 includes two open ended tubular members 16, 18 arranged in end-to-end axially aligned relationship, with reference to a longitudinal axis of rotation 20. The tubular members 16,18 each have an annular recess 38, 40, in end faces thereof, which recesses 38, 40 define jointly a rotary bearing race-way 22.
A collar member, generally indicate by reference numeral 24, cooperates with the two tubular members 16, 18 to retain them in their end to end relationship as shown in Figure 1 . The collar member 24 is shaped and sized to define working clearances between the tubular members 16, 18 and the collar member 24, so as to permit independent rotation of the tubular members 16, 18 relative to each other and relative to the collar member 24 about the axis 20.
Further, the two tubular members 16, 18 are shaped and sized for retro- fitment inline between attachment arrangements associated with a commercially available pool cleaner 12 and a flexible pool hose 14, respectively, as explained in more detail below.
In this example embodiment of the invention, the two open ended tubular members 16, 18 each includes a generally circular cylindrical body 30, 32 having a flanged end. The cylindrical bodies 30, 32 are in the form of short pipe-like sections and are arranged in end-to-end relationship axially aligned with their flanged ends facing each other. The facing flanges 34, 36 define jointly between them the rotary bearing race-way 22. Each flange 34, 36 is formed by a rim extending radially outwardly from an associated end edge of the tubular member flush with the associated end edge, each flange 34, 36 defining a major annular flange face. The facing flanges 34, 36 each define in its major annular flange face a circumferentially extending concentric recess 38, 40 which is semi-circular in section, so as to define jointly between them the rotary bearing race-way 22 shaped snugly, to receive a plurality of spherical or ball bearing element 42 of complementary diameter.
Moreover, the swivel coupler 10 includes a plurality of ball bearing elements 42 (one of which is shown in Figure 1 of the drawings) arranged contiguously in single file inside the roller bearing race-way 22 defined between the two flanges 34, 36 of the cylindrical bodies 30, 32. Spacing of the ball bearing elements 42 inside the roller bearing race-way is selected so that unobstructed rolling of adjacent ball bearing elements 22 is provided along the roller bearing race way 22.
The collar member 24 includes a generally flat annular collar wall 44 having retainer protuberances 46, 48 projecting radially inwards from the collar wall 44 of the circular collar wall 44. One retainer protuberance 46 comprises an annular rib of uniform cross-section projecting radially inwards from a peripheral edge of the collar wall 44. The other retainer protuberance 48 includes a circumferentially extending elevated formation 48 projecting radially inwardly from an inside surface of the collar wall near an opposite peripheral edge of the collar wall 44. The depth or radial thickness of the formation 48 increases away from the edge of the collar wall 44 to form a sloping surface 49 which facilitates assembly of the coupler 10. In the embodiment of the invention shown (see Figure 1 ), the two flanges 34, 36 are held captive between the spaced apart rib 46 and the elevated formation 48. The protuberances 46, 48 thus cooperate with the tubular members 16, 18 by loosely straddling the flanges 34, 36, thereby to restrict relative axial movement between and retain the tubular members 16, 18 in their end-to-end relationship. The collar body 44 is shaped and sized to allow working clearances between the cylindrical bodies 30, 32 and the collar body 44, thereby to permit independent revolving of the tubular members 16, 18 relative to each other and relative to the collar member 24 about the rotational axis 20. Radially outer opposite edges 50, 52 of the collar body 44 are circumferentially chamfered.
The circular cylindrical bodies 30, 32 are shaped to form a socket-type or nipple-type attachment for cooperative attachment to a complementary shaped commercially available nipple or socket terminations, respectively, which forms part of the pool cleaner attachment arrangement and/or the flexible pool hose attachment arrangement, as the case may be.
The tubular members 30, 32, the collar member 24, and the ball bearing elements 22, are formed from a synthetic plastic material. In this embodiment of the
invention, the synthetic plastic material from which the tubular members are formed includes a major ingredient of acetal, and the ball bearing elements are formed from a plastic material which includes a major ingredient of styrene.
In use, if a steering operation of a pool cleaner 12 is to be freed from the influence which a pool hose 14 connected to the pool cleaner 12 may have on it, then a user selects a swivel connecter 10, in accordance with the invention, having tubular members 30, 32 shaped and sized for attachment inline between the respective pool cleaner 12 and pool hose end attachment arrangements 28. In such case, it is envisaged that the steering operation of the pool cleaner 12 is enhanced and that the pool cleaner will extricate itself from areas in the swimming pool where it would otherwise have been prone to get stuck.
The Applicant believes, advantageously, that the swivel coupler 10, in accordance with the invention, provides an efficient way of freeing the pool cleaner 12 from the influence the pool hose 14 to facilitate the steering operation of the pool cleaner 12. Further, the Applicant also believes that the construction and the materials of which the swivel coupler is formed enhances its operation and prolongs the working life of the connector. Further, the Applicant believes that the swivel coupler will be self cleaning and more resistant to jamming than existing swivel couplers.
Claims
1 . A swivel coupler for connecting a pool cleaning device operatively to a flexible pool hose, which coupler includes: two open ended tubular members arranged in end-to-end axially aligned relationship; a plurality of bearing elements positioned between the tubular members; and a collar member cooperating with the two tubular members to retain them in their end-to-end relationship, the collar member being shaped and sized to define working clearances permitting independent rotation of the tubular members relative to each other and of at least one of the tubular members relative to the collar member about the axis.
2. A swivel coupler as claimed in claim 1 , in which the tubular members are shaped and sized for retro-fitment inline between attachment arrangements associated with a pool cleaner and a flexible pool hose end, respectively.
3. A swivel coupler as claimer in claim 1 or claim 2, in which the tubular members defines between opposed faces thereof an annular bearing race-way in which the bearing elements are positioned.
4. A swivel coupler as claimed in claim 3, in which the two open ended tubular members each includes a generally circular cylindrical body having a flanged end, the cylindrical bodies being arranged in end-to-end relationship axially aligned with their flanged ends facing each other, the facing flanges defining jointly between them the bearing race-way.
5. A swivel coupler as claimed in claim 4, in which each flange comprises a uniformly shaped rim extending radially outwardly from the tubular member flush with the associated end of the tubular member, so as to define a major annular flange face, the facing flanges each defining in its major annular face a circumferentially extending annular recess, which is concentric with an axis of the associated tubular member and which is semi-circular in section, so that the recesses define jointly between them the rotary bearing race-way the bearing elements being contained in the bearing race-way.
6. A swivel coupler as claimed in claim 4 or claim 5, in which the collar member includes a collar body comprising a generally flat annular collar wall having spaced apart retainer protuberances projecting radially inwardly from the wall, the protuberances being spaced apart to define a retainer space between them, the collar cooperating with the tubular members by straddling the facing flanges to retain the tubular members in their end-to-end relationship, the collar member being configured to define working clearances permitting independent rotation of the tubular members relative to each other and relative to the collar member about the rotational axis and inhibiting excessive relative axial movement of the tubular members.
7. A swivel coupler as claimed in any one of the preceding claims, in which the tubular members each includes an attachment arrangement for retro-fitment inline between attachment arrangements respectively associated with a pool cleaner head water outlet end and a flexible hose water inlet end.
8. A swivel coupler as claimed in any one of the preceding claims, which is formed entirely from a synthetic plastics or polymeric material.
9. A swivel coupler as claimed in any one of the preceding claims, in which the tubular members are formed from a material, at least a major constituent of which is acetal.
10. A swivel coupler as claimed in any one of the preceding claims, in which and the bearing elements are formed from a material, at least a major constituent of which is styrene.
1 1 . A swivel coupler for connecting a pool cleaning device operatively to a flexible pool hose, which coupler includes two open ended tubular members which are arranged end-to-end and are connectable respectively to a pool cleaning device and a flexible hose to connect the device and the hose in flow communication; and a plurality of bearing elements positioned between the tubular members to facilitate relative angular displacement between the members, the bearing elements being formed from a material at least a major constituent of which is styrene.
12. A swivel coupler as claimed in claim 1 1 , in which each tubular member is moulded of a synthetic plastics material.
13. A swivel coupler as claimed in claim 1 1 or claim 12, in which the tubular members are formed from a material at least a major constituent of which is acetal.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ZA200701103 | 2007-02-07 | ||
| ZA2007/01103 | 2007-02-07 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| WO2008096323A2 true WO2008096323A2 (en) | 2008-08-14 |
| WO2008096323A8 WO2008096323A8 (en) | 2008-10-02 |
| WO2008096323A3 WO2008096323A3 (en) | 2009-02-05 |
Family
ID=39682174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/IB2008/050440 WO2008096323A2 (en) | 2007-02-07 | 2008-02-07 | Swivel coupler |
Country Status (2)
| Country | Link |
|---|---|
| WO (1) | WO2008096323A2 (en) |
| ZA (1) | ZA200801329B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110088181A1 (en) * | 2009-10-19 | 2011-04-21 | Poolvergnuegen | Convertible Pressure/Suction Swimming Pool Cleaner |
| US9593502B2 (en) | 2009-10-19 | 2017-03-14 | Hayward Industries, Inc. | Swimming pool cleaner |
| USD787761S1 (en) | 2014-11-07 | 2017-05-23 | Hayward Industries, Inc. | Pool cleaner |
| USD787760S1 (en) | 2014-11-07 | 2017-05-23 | Hayward Industries, Inc. | Pool cleaner |
| USD789003S1 (en) | 2014-11-07 | 2017-06-06 | Hayward Industries, Inc. | Pool cleaner |
| US9677294B2 (en) | 2013-03-15 | 2017-06-13 | Hayward Industries, Inc. | Pool cleaning device with wheel drive assemblies |
| USD789624S1 (en) | 2014-11-07 | 2017-06-13 | Hayward Industries, Inc. | Pool cleaner |
| US10161154B2 (en) | 2013-03-14 | 2018-12-25 | Hayward Industries, Inc. | Pool cleaner with articulated cleaning members and methods relating thereto |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB721907A (en) * | 1951-04-28 | 1955-01-12 | Western Electric Co | Methods of forming thermally dehydrogenated products of hydrocarbon polymers, and the products so produced, particularly carbon granules for microphones |
| GB1319743A (en) * | 1971-02-12 | 1973-06-06 | Fletcher F | Pipe couplings |
| EP0323883A1 (en) * | 1988-01-07 | 1989-07-12 | Liberty Pool Products S.A. | Pool cleaner |
| WO1999028577A1 (en) * | 1997-11-26 | 1999-06-10 | Freemantle, Eric | Pool cleaner |
| WO2000073691A1 (en) * | 1999-05-28 | 2000-12-07 | Richard Victor Vos | Swivel connector |
-
2008
- 2008-02-07 WO PCT/IB2008/050440 patent/WO2008096323A2/en active Application Filing
- 2008-02-07 ZA ZA200801329A patent/ZA200801329B/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB721907A (en) * | 1951-04-28 | 1955-01-12 | Western Electric Co | Methods of forming thermally dehydrogenated products of hydrocarbon polymers, and the products so produced, particularly carbon granules for microphones |
| GB1319743A (en) * | 1971-02-12 | 1973-06-06 | Fletcher F | Pipe couplings |
| EP0323883A1 (en) * | 1988-01-07 | 1989-07-12 | Liberty Pool Products S.A. | Pool cleaner |
| WO1999028577A1 (en) * | 1997-11-26 | 1999-06-10 | Freemantle, Eric | Pool cleaner |
| WO2000073691A1 (en) * | 1999-05-28 | 2000-12-07 | Richard Victor Vos | Swivel connector |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110088181A1 (en) * | 2009-10-19 | 2011-04-21 | Poolvergnuegen | Convertible Pressure/Suction Swimming Pool Cleaner |
| US8402585B2 (en) * | 2009-10-19 | 2013-03-26 | Poolvergnuegen | Convertible pressure/suction swimming pool cleaner |
| US9593502B2 (en) | 2009-10-19 | 2017-03-14 | Hayward Industries, Inc. | Swimming pool cleaner |
| US9758979B2 (en) | 2009-10-19 | 2017-09-12 | Hayward Industries, Inc. | Swimming pool cleaner |
| US9784007B2 (en) | 2009-10-19 | 2017-10-10 | Hayward Industries, Inc. | Swimming pool cleaner |
| US10161154B2 (en) | 2013-03-14 | 2018-12-25 | Hayward Industries, Inc. | Pool cleaner with articulated cleaning members and methods relating thereto |
| US9677294B2 (en) | 2013-03-15 | 2017-06-13 | Hayward Industries, Inc. | Pool cleaning device with wheel drive assemblies |
| USD787761S1 (en) | 2014-11-07 | 2017-05-23 | Hayward Industries, Inc. | Pool cleaner |
| USD787760S1 (en) | 2014-11-07 | 2017-05-23 | Hayward Industries, Inc. | Pool cleaner |
| USD789003S1 (en) | 2014-11-07 | 2017-06-06 | Hayward Industries, Inc. | Pool cleaner |
| USD789624S1 (en) | 2014-11-07 | 2017-06-13 | Hayward Industries, Inc. | Pool cleaner |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2008096323A3 (en) | 2009-02-05 |
| ZA200801329B (en) | 2008-12-31 |
| WO2008096323A8 (en) | 2008-10-02 |
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