EP1389938B1 - Tube shaft for a vacuum cleaner - Google Patents
Tube shaft for a vacuum cleaner Download PDFInfo
- Publication number
- EP1389938B1 EP1389938B1 EP02733706A EP02733706A EP1389938B1 EP 1389938 B1 EP1389938 B1 EP 1389938B1 EP 02733706 A EP02733706 A EP 02733706A EP 02733706 A EP02733706 A EP 02733706A EP 1389938 B1 EP1389938 B1 EP 1389938B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tube
- shaped part
- link
- shaped
- link member
- 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.)
- Expired - Lifetime
Links
- 230000003213 activating effect Effects 0.000 claims abstract 2
- 238000007789 sealing Methods 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000010407 vacuum cleaning Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/24—Hoses or pipes; Hose or pipe couplings
- A47L9/242—Hose or pipe couplings
Definitions
- This invention relates to a tube shaft for a vacuum cleaner, the tube shaft comprising at least one upper and a lower tube-shaped part which via a link means are pivotally connected to one another, the link means being provided with a locking mechanism for locking the two tube-shaped parts in one or several angular positions with respect to one another.
- tube shafts for vacuum cleaners comprise several tube-shaped elements that can be connected to one another to form a communication between a nozzle and a tube handle by which a hose is connected to the vacuum cleaner housing. It is also previously known to use telescopic tube shafts for which the length of the tube shaft can easily be adapted to the height of the operator by pulling out a suitable length of an inner tube from an outer tube before the elements are locked with respect to one another.
- tube shafts that are provided with a link means for increasing the accessibility below low details while maintaining the working position as well as telescopic tube shafts of the same type, see SE 9802315-3 and US 5927758.
- a drawback of the last-mentioned types of tube shafts is that the link means with its adjustment mechanism is placed somewhat down at the tube shaft. Thus, the operator has to change his position either by bending down in order to reach the adjustment mechanism or by raising the tube shaft and nozzle.
- the purpose of the present invention is to create a device that facilitates said adjusting operation which can be made with a preserved working position. This is achieved by means of a device having the characteristics mentioned in the claims.
- the present invention provides a device that fascilitates the above-mentioned adjusting operation without the user changing positions or raising the tube shaft and nozzle.
- Fig. 1 shows a tube shaft 10 having an upper tube-shaped part 11 connected to a tube handle 12.
- the tube handle 12 is connected, by means of a hose 13, to a vacuum cleaner housing (not shown) being provided with a vacuum source (not shown).
- the lower tube-shaped part 14 is connected to a conventional nozzle 15 by which dust laden air is sucked up into the tube shaft 10.
- the tube shaft 10 has a link means 16 placed between the upper tube-shaped part 11 and the lower tube-shaped part 14. Further, the tube shaft 10 has a locking mechanism 17. By means of the link means 16 and the locking mechanism 17, the two tube-shaped parts 11, 14 can be pivoted and locked with respect to one another.
- the upper tube-shaped part 11 comprises a thin wall tube, for instance of aluminium, which at its upper end is provided with a socket for the tube shaft 12.
- the lower end of the upper tube-shaped part 11 is provided with a seal 18 which in the position shown in Fig. 2 abuts the inner surface of the thin wall tube 14 which preferably is made of aluminium and which constitutes the lower tube-shaped part 14.
- the two tubes-shaped parts 11, 14 are made such that the upper tube-shaped part 11 can be inserted telescopically into the lower tube-shaped part 14.
- the upper tube-shaped part 11 is provided with a an axially directed, outwardly open groove 19 that partly surrounds a draw bar 20. As shown in Figs.
- the upper part of the draw bar 20 is connected to a sleeve 21 surrounding the upper tube-shaped part 11.
- the draw bar 20 and sleeve 21 are arranged to be moved a limited distance in the axial direction, a , of the tube-shaped part 11.
- the lower part of the draw bar 20 is provided with a hook 22 constituting a part of the locking mechanism 17 and whose function is described below.
- the lower tube-shaped part 14 is supported by a first link member 23 of the link means 16.
- the upper tube-shaped part 11 is slidably arranged within a second link member 24.
- the two link portions are pivotally arranged with respect to one another about an axle or pin 25 which is located outside the two tube-shaped parts 11,14.
- the two link members 23,24 may be made of plastic.
- the fist link member 23 is provided with a tube-shaped connection part 26 having the same inner diameter as the outer diameter of the lower tube-shaped part 14 and being a linear extension of it.
- the upper end of the first link member 23 is obliquely terminated with respect to the axial direction, a 1 , of the lower tube-shaped part 14 and is partly shaped as a shell 27 curved in two directions and having an inner surface 28 forming a sealing surface for the lower end of the second link member 24.
- the second link member 24 is also obliquely terminated with respect to the axial direction, a 2 , of the upper tube-shaped part 11.
- the second link member 24 comprises a tube-shaped connecting part 29 within which the upper tube-shaped part 11 is telescopically movable.
- the second link member 24 also has a locking mechanism, not shown, by means of which the upper tube-shaped part 11 can be locked in different axial positions in a telescoping fashion with respect to the link members 23, 24 and the lower tube-shaped part 14.
- the connecting parts 26, 29 are respectively provided with link portions 30, 31 supporting the pin 25.
- the second link member 24 is also provided with one or more laches 32 pivotally arranged about a shaft 33 on the outside of the second link member 24 and being fixedly connected to an operating arm 34.
- the operating arm 34 is connected to a spring loaded control knob 35 which is movably arranged in the axial direction, a 2 , of the upper tube-shaped part 11.
- the operating knob 35 is provided with an abuttment surface 36 cooperating with the hook 22 in a way which will be described below.
- the first link member 23 is firmly secured to one or more cam members 37.
- the cam members 37 are roughly pie-shaped shaped and are supported for pivoting motion about the pin 25. Further, the cam members 37 are provided with a cam surface having several recesses 38 cooperating with the latch 32.
- Fig. 2 shows the upper tube-shaped part 11 partly inserted into the lower tube-shaped part 14, and the two connecting parts 26 and 29 of the two link members 23, 24 being in line with one another.
- the hook 22 of the draw bar 20 will engage the abutting surface 36 at the same time as the link portions 30, 31 are no longer blocked since the upper tube-shaped part 11 is not longer inserted through the link members 23, 24. In this position the operator can now pull the sleeve 21 upwards to the position shown in Fig.
Abstract
Description
- This invention relates to a tube shaft for a vacuum cleaner, the tube shaft comprising at least one upper and a lower tube-shaped part which via a link means are pivotally connected to one another, the link means being provided with a locking mechanism for locking the two tube-shaped parts in one or several angular positions with respect to one another.
- Conventional tube shafts for vacuum cleaners comprise several tube-shaped elements that can be connected to one another to form a communication between a nozzle and a tube handle by which a hose is connected to the vacuum cleaner housing. It is also previously known to use telescopic tube shafts for which the length of the tube shaft can easily be adapted to the height of the operator by pulling out a suitable length of an inner tube from an outer tube before the elements are locked with respect to one another.
- To achieve improved ergonomic conditions during the vacuum cleaning operation it has also been proposed to use tube shafts that are provided with a link means for increasing the accessibility below low details while maintaining the working position as well as telescopic tube shafts of the same type, see SE 9802315-3 and US 5927758.
- A drawback of the last-mentioned types of tube shafts is that the link means with its adjustment mechanism is placed somewhat down at the tube shaft. Thus, the operator has to change his position either by bending down in order to reach the adjustment mechanism or by raising the tube shaft and nozzle.
- The purpose of the present invention is to create a device that facilitates said adjusting operation which can be made with a preserved working position. This is achieved by means of a device having the characteristics mentioned in the claims.
- An embodiment of the invention will now be described with reference to the accompanying drawing on which
- Fig. 1 shows a perspective view of a tube shaft according to the invention;
- Fig. 2 is an axial section through the tube shaft of Fig. 1 with link means, the tube parts and the locking mechanism being shown in a first position;
- Fig. 3 is an axial section through the tube shaft of Fig. 1 with link means, the tube parts and the locking mechanism being shown in a second position;
- Fig. 4 is an axial section through the tube shaft of Fig. 1 with link means, the tube parts and the locking mechanism being shown in a third position;
- Fig. 5 is an axial section through the tube shaft of Fig. 1 with link means, the tube parts and the locking mechanism being shown in a fourth position; and
- Fig. 6 is an axial section through the tube shaft of Fig. 1 with link means, the tube parts and the locking mechanism being shown in a fifth position.
- The present invention provides a device that fascilitates the above-mentioned adjusting operation without the user changing positions or raising the tube shaft and nozzle.
- Fig. 1 shows a
tube shaft 10 having an upper tube-shaped part 11 connected to atube handle 12. Thetube handle 12 is connected, by means of ahose 13, to a vacuum cleaner housing (not shown) being provided with a vacuum source (not shown). The lower tube-shaped part 14 is connected to aconventional nozzle 15 by which dust laden air is sucked up into thetube shaft 10. Thetube shaft 10 has a link means 16 placed between the upper tube-shaped part 11 and the lower tube-shaped part 14. Further, thetube shaft 10 has alocking mechanism 17. By means of the link means 16 and thelocking mechanism 17, the two tube-shaped parts - The upper tube-
shaped part 11 comprises a thin wall tube, for instance of aluminium, which at its upper end is provided with a socket for thetube shaft 12. The lower end of the upper tube-shaped part 11 is provided with aseal 18 which in the position shown in Fig. 2 abuts the inner surface of thethin wall tube 14 which preferably is made of aluminium and which constitutes the lower tube-shaped part 14. The two tubes-shaped parts shaped part 11 can be inserted telescopically into the lower tube-shaped part 14. The upper tube-shaped part 11 is provided with a an axially directed, outwardlyopen groove 19 that partly surrounds adraw bar 20. As shown in Figs. 1 and 6, the upper part of thedraw bar 20 is connected to asleeve 21 surrounding the upper tube-shaped part 11. Thedraw bar 20 andsleeve 21 are arranged to be moved a limited distance in the axial direction, a, of the tube-shaped part 11. As shown in Fig. 2, the lower part of thedraw bar 20 is provided with ahook 22 constituting a part of thelocking mechanism 17 and whose function is described below. - The lower tube-
shaped part 14 is supported by afirst link member 23 of the link means 16. The upper tube-shaped part 11 is slidably arranged within asecond link member 24. The two link portions are pivotally arranged with respect to one another about an axle orpin 25 which is located outside the two tube-shaped parts link members - The
fist link member 23 is provided with a tube-shaped connection part 26 having the same inner diameter as the outer diameter of the lower tube-shaped part 14 and being a linear extension of it. The upper end of thefirst link member 23 is obliquely terminated with respect to the axial direction, a1 , of the lower tube-shaped part 14 and is partly shaped as ashell 27 curved in two directions and having aninner surface 28 forming a sealing surface for the lower end of thesecond link member 24. - The
second link member 24 is also obliquely terminated with respect to the axial direction, a2 , of the upper tube-shaped part 11. Thesecond link member 24 comprises a tube-shaped connectingpart 29 within which the upper tube-shaped part 11 is telescopically movable. - The
second link member 24 also has a locking mechanism, not shown, by means of which the upper tube-shaped part 11 can be locked in different axial positions in a telescoping fashion with respect to thelink members shaped part 14. - The connecting
parts link portions pin 25. Thesecond link member 24 is also provided with one ormore laches 32 pivotally arranged about ashaft 33 on the outside of thesecond link member 24 and being fixedly connected to anoperating arm 34. Theoperating arm 34 is connected to a spring loadedcontrol knob 35 which is movably arranged in the axial direction, a2 , of the upper tube-shaped part 11. Theoperating knob 35 is provided with anabuttment surface 36 cooperating with thehook 22 in a way which will be described below. - The
first link member 23 is firmly secured to one ormore cam members 37. Thecam members 37 are roughly pie-shaped shaped and are supported for pivoting motion about thepin 25. Further, thecam members 37 are provided with a cam surface havingseveral recesses 38 cooperating with thelatch 32. - The
tube shaft 10 operates in the following manner. Fig. 2 shows the upper tube-shaped part 11 partly inserted into the lower tube-shaped part 14, and the two connectingparts link members shaped part 11 is pulled out from the lower tube-shaped part 14 (see Fig. 3), thehook 22 of thedraw bar 20 will engage theabutting surface 36 at the same time as thelink portions shaped part 11 is not longer inserted through thelink members sleeve 21 upwards to the position shown in Fig. 1, causing thedraw bar 20 to move thehook 22 which lifts theoperating knob 35 upwards against the spring forces such that thelatch 32 comes free from thecam member 37, see Fig.4. Thus, the upper and thelower part sleeve 21 so that thelatch 32 comes into engagement with asuitable recess 38 to lock theparts
Claims (10)
- A tube shaft for a vacuum cleaner comprising an upper tube-shaped part (11); a lower tube-shaped part (14); a link means (16) pivotally connecting the lower tube-shaped part (14) to the upper tube-shaped part (11), the link means (16) being provided with a locking mechanism (17) for locking the two tube-shaped parts in one or several angular positions with respect to one another, characterized in that there is an operating means (21) arranged at a distance from and above said link means (16), the operating means (21) being connected to the locking mechanism (32,37) for activating or deactivating the locking means.
- The tube shaft according to claim 1 characterized in that the operating means (21) is connected to the locking mechanism (17) by a wire, a draw bar or a push rod (20).
- The tube shaft according to claim 1 or 2, characterized in that the operating means (21) comprises a sleeve surrounding the upper tube-shaped part (11).
- The tube shaft according to any of the preceding claims, characterized in that the locking mechanism comprises a spring loaded latch means (32) for engaging a recesses (38) on a cam surface, the latch means (32) following a pivoting motion of one of the upper tube-shaped part and the lower tube-shaped part, and the cam surface following a pivoting motion of the other one of the upper tube-shaped part and the lower tube-shaped part.
- The tube shaft according to claim 2, characterized in that said wire, draw bar or push rod is arranged in a groove (22) on the outside of the upper tube-shaped part (11).
- The tube shaft according to any of the preceding claims, characterized in that the upper tube-shaped part (11) and/or the lower tube-shaped part (14) is movable telescopically through the link means (16) when the upper tube-shaped part (11) is aligned with the lower tube-shaped part (14).
- The tube shaft according to any of the preceding claims, characterized in that the link means (16) comprises a first link member (23) and a second link member (24), the first link member (23) having a first tube-shaped connecting part (26) for the lower tube-shaped part (14) and the second link member (24) having a second tube-shaped connecting part (29) for the upper tube-shaped part (11), the first link member (23) being pivotally connected to the second link member (24) at an axis (25) located outside the periphery of the upper tube-shaped part (11) and the lower tube-shaped part (14).
- The tube shaft according to claim 7, characterized in that the first link member (23) and the second link member (24) are provided with a sealing surface (28) during a pivoting motion.
- The tube shaft according to claim 1, characterized in that the operating means (21) is located at an upper portion of the upper tube-shaped part (11).
- The tube shaft according to claim 6, characterized in that the operating means (21) is in a connectable position when the tube-shaped parts (11,14) are in said angular positions.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0101924 | 2001-05-31 | ||
SE0101924A SE519073C2 (en) | 2001-05-31 | 2001-05-31 | Pipe shaft for a vacuum cleaner |
PCT/SE2002/000949 WO2002096258A1 (en) | 2001-05-31 | 2002-05-17 | Tube shaft for a vacuum cleaner |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1389938A1 EP1389938A1 (en) | 2004-02-25 |
EP1389938B1 true EP1389938B1 (en) | 2007-01-24 |
Family
ID=20284313
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02733706A Expired - Lifetime EP1389938B1 (en) | 2001-05-31 | 2002-05-17 | Tube shaft for a vacuum cleaner |
Country Status (6)
Country | Link |
---|---|
US (1) | US20040211029A1 (en) |
EP (1) | EP1389938B1 (en) |
AT (1) | ATE352246T1 (en) |
DE (1) | DE60217852T2 (en) |
SE (1) | SE519073C2 (en) |
WO (1) | WO2002096258A1 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001269294A (en) * | 2000-03-23 | 2001-10-02 | Sharp Corp | Vacuum cleaner |
KR20050053054A (en) * | 2003-12-02 | 2005-06-08 | 삼성광주전자 주식회사 | Extension pipe having joint for vacuum cleaner |
KR20050059573A (en) * | 2003-12-15 | 2005-06-21 | 삼성광주전자 주식회사 | Extension pipe having joint for vacuum cleaner |
US8296901B2 (en) * | 2008-01-24 | 2012-10-30 | Euro-Pro Operating Llc | Reconfigurable airflow wand |
US8813297B2 (en) * | 2010-03-12 | 2014-08-26 | Euro-Pro Operating Llc | Floor cleaning device |
EP2521474B1 (en) | 2010-10-15 | 2016-05-11 | Techtronic Floor Care Technology Limited | Steering assembly for surface cleaning device |
US9282862B2 (en) | 2011-10-14 | 2016-03-15 | Techtronic Floor Care Technology Limited | Steering assembly for surface cleaning device |
US10966581B2 (en) | 2015-10-22 | 2021-04-06 | Sharkninja Operating Llc | Vacuum cleaning device with foldable wand to provide storage configuration |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1573467A (en) * | 1923-09-19 | 1926-02-16 | Birtman Electric Co | Handle for vacuum cleaners and the like |
US2176295A (en) * | 1935-10-08 | 1939-10-17 | Lubrication Corp | Lubricating device |
US2739778A (en) * | 1953-11-09 | 1956-03-27 | Wheaton Brass Works | Spring counterbalanced swing joint supported conduit or like arm |
SE509150C2 (en) * | 1997-04-07 | 1998-12-07 | Electrolux Ab | The vacuum cleaner |
AU762499B2 (en) * | 2001-01-29 | 2003-06-26 | Lg Electronics Inc. | Extension tube in vacuum cleaner |
KR20030072000A (en) * | 2002-03-05 | 2003-09-13 | 삼성광주전자 주식회사 | Articulated joint assembly for vacuum cleaner and vacuum cleaner having the same |
-
2001
- 2001-05-31 SE SE0101924A patent/SE519073C2/en not_active IP Right Cessation
-
2002
- 2002-05-17 EP EP02733706A patent/EP1389938B1/en not_active Expired - Lifetime
- 2002-05-17 WO PCT/SE2002/000949 patent/WO2002096258A1/en active IP Right Grant
- 2002-05-17 US US10/477,262 patent/US20040211029A1/en not_active Abandoned
- 2002-05-17 AT AT02733706T patent/ATE352246T1/en not_active IP Right Cessation
- 2002-05-17 DE DE60217852T patent/DE60217852T2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
SE0101924L (en) | 2002-12-01 |
DE60217852T2 (en) | 2007-11-15 |
SE0101924D0 (en) | 2001-05-31 |
EP1389938A1 (en) | 2004-02-25 |
US20040211029A1 (en) | 2004-10-28 |
ATE352246T1 (en) | 2007-02-15 |
SE519073C2 (en) | 2003-01-07 |
WO2002096258A1 (en) | 2002-12-05 |
DE60217852D1 (en) | 2007-03-15 |
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