US20110219571A1 - Vacuum cleaner arrangement - Google Patents

Vacuum cleaner arrangement Download PDF

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Publication number
US20110219571A1
US20110219571A1 US13/035,612 US201113035612A US2011219571A1 US 20110219571 A1 US20110219571 A1 US 20110219571A1 US 201113035612 A US201113035612 A US 201113035612A US 2011219571 A1 US2011219571 A1 US 2011219571A1
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US
United States
Prior art keywords
stick
cleaner
clamping member
vac
docking station
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.)
Abandoned
Application number
US13/035,612
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English (en)
Inventor
James Dyson
Timothy Nicholas STICKNEY
Peter David Gammack
Michael John Cox
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dyson Technology Ltd
Original Assignee
Dyson Technology Ltd
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Filing date
Publication date
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Assigned to DYSON TECHNOLOGY LIMITED reassignment DYSON TECHNOLOGY LIMITED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: COX, MICHAEL JOHN, STICKNEY, TIMOTHY NICHOLAS, DYSON, JAMES, GAMMACK, PETER DAVID
Publication of US20110219571A1 publication Critical patent/US20110219571A1/en
Abandoned legal-status Critical Current

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    • 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
    • A47L5/00—Structural features of suction cleaners
    • A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
    • A47L5/24—Hand-supported suction cleaners
    • 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
    • A47L9/0009—Storing devices ; Supports, stands or holders
    • 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
    • A47L9/0009—Storing devices ; Supports, stands or holders
    • A47L9/0063—External storing devices; Stands, casings or the like for the storage of suction cleaners
    • 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
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2868—Arrangements for power supply of vacuum cleaners or the accessories thereof
    • A47L9/2873—Docking units or charging stations
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
    • H02J7/0044—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction specially adapted for holding portable devices containing batteries

Definitions

  • the present invention relates to the field of vacuum cleaners, and more specifically to ‘stick-vac’ cleaners of the type generally comprising a handheld suction unit connected to a floor tool by an elongate suction wand.
  • vacuum cleaners there are four types of vacuum cleaner: “upright” vacuum cleaners, “cylinder” cleaners (also referred to as “canister” cleaners), “handheld” vacuum cleaners and “stick” vacuum cleaners, the latter being popularly referred to as “stick-vac” cleaners, or simply “stick-vacs”.
  • Upright cleaners and cylinder cleaners are well known. They tend to be mains-operated and are used for relatively heavy-duty cleaning applications.
  • Handheld vacuum cleaners are relatively small, highly portable vacuum cleaners, best suited to relatively low duty applications such as spot cleaning floors and upholstery in the home, interior cleaning of cars and boats etc. Unlike upright cleaners and cylinder cleaners, they are designed to be carried in the hand during use, and tend to be battery-operated.
  • Stick-vac cleaners essentially offer a lightweight, functional alternative to upright cleaners for relatively low duty floor-cleaning applications, such as cleaning up floor spills.
  • stick-vacs there are two types of stick-vacs.
  • the first type is, in a sense, an ultra slim-line upright cleaner, though usually “cordless” rather than mains-operated.
  • An example of this type of stick-vac cleaner is shown in UK Patent Application No. GB2377880A1, in this case additionally incorporating a removable, handheld vacuum-cleaning unit.
  • Stick-vacs of this first type may be free-standing; otherwise, they tend to be stored simply by leaning the stick-vac against a wall when not in use (in the manner of a long-handle brush or broom).
  • the second type of stick-vac cleaner is a spin-off from the handheld vacuum cleaner, and comprises a handheld suction unit which is carried in the hand in the same way as a handheld vacuum cleaner, but in combination with a rigid, elongate suction wand which effectively reaches down to the floor so that the user may remain standing while cleaning a floor surface.
  • a floor tool is typically attached to the end of the rigid, elongate suction wand, or alternatively may be integrated with the bottom end of the wand.
  • Designs of this type of stick-vac cleaner are shown in USD298875, USD303173 and USD280033.
  • the handheld suction unit incorporates the motor, the fan and some sort of separating apparatus, which may be a bag or a cyclonic separation system.
  • Stick-vac cleaners of the second type are predominantly multi-mode, hybrid machines: in such cases, the wand is removable and the handheld suction unit may then be used independently as a handheld vacuum cleaner, as desired. However, this is not an essential feature of these types of stick-vac cleaners and it is conceivable that the wand may be permanently attached to the handheld suction unit.
  • a feature which distinguishes stick-vacs of the second type from stick-vacs of the first type is that the first type is “bottom heavy”—the motor is located low down in similar manner to a full-sized upright cleaner—whereas the second type is “top heavy”—the use of a handheld suction unit in combination with an elongate suction wand means that the motor (being inside the handheld suction unit) is located nearer the top end of the machine.
  • the “top heavy” distribution of weight in stick-vacs of the second type means that they are not particularly convenient to store in stick-vac mode. If the stick-vac cleaner is leaned against a wall in an upright position with the floor tool supported on the floor and the handheld suction unit resting against the wall, the relative weight of the handheld suction unit tends to make the stick-vac cleaner as a whole unstable. On the other hand, if the stick-vac cleaner is turned upside down and leaned against the wall with the relatively heavy handheld vacuum cleaner supported on the floor, the relatively dirty lower end of the cleaner will consequently rest against the wall, which is undesirable.
  • the natural inclination is to grasp the stick-vac cleaner in the region of the relatively dirty lower end of the stick-vac cleaner in order to turn the cleaner back round to the upright position for use.
  • an arrangement comprising: a handheld suction unit in combination with an elongate suction wand to form a stick-vac cleaner, the arrangement further comprising a wall-mountable docking station for supporting the stick-vac cleaner on a wall in an upright, docked position when not in use.
  • upright position is meant a position in which the elongate suction wand extends downwardly from the handheld suction unit towards the floor.
  • Storing the stick-vac cleaner in the upright position has the advantage that a user may conveniently grasp the hand held vacuum cleaner in order to disengage the stick-vac from the docking station, at which point the stick-vac is ready for use in the upright position: there is no tendency for the user to grasp the relatively dirty, lower end of the stick-vac in order to manipulate the stick-vac cleaner into the upright position for use.
  • the “top heavy” stick-vac cleaner is advantageously supported in a relatively stable, upright position by the docking station (which laterally supports the stick-vac cleaner in the upright position).
  • the docking station is arranged releasably to lock the stick-vac in the upright, docked position i.e. so that the stick-vac cleaner is essentially fixed relative to the docking station in the upright, docked position.
  • the docking station may be arranged for engaging the handheld suction unit in order directly to support the hand held suction unit when the stick-vac cleaner is in the upright, docked position. Consequently, because the center of mass is dictated largely by the position of motor, which is inside the handheld suction unit, the center of mass of the stick-vac cleaner will be relatively near to the point of support on the wall; this provides a particularly stable upright, docked position, and results in relatively low stresses on the docking station components.
  • the handheld cleaner may be a battery-powered handheld cleaner, in which case it may incorporate a set of exterior charging contacts connected to an onboard rechargeable battery, and the docking station may comprise a respective set of charging contacts for connection to a mains supply, the charging contacts on the docking station being arranged for engagement with said exterior charging contacts on the handheld cleaner to form a battery-charging circuit when the stick-vac cleaner is in the upright, docked position.
  • the docking station advantageously charges the battery onboard the handheld unit when the stick-vac cleaner is in the upright, docked position.
  • the charging contacts on the handheld suction unit may be arranged in any suitable manner. In some cases, it may be desirable to arrange the contacts on the handheld suction unit in a way which means that the contacts face upwards when the stick-vac cleaner is in the upright position.
  • the charging contacts on the handheld suction unit are arranged so that they face upwards when the stick-vac cleaner is in the upright position, it has been found that there can be a tendency for the charging contacts to pull away from the respective contacts on the docking station, under the weight of the stick-vac cleaner.
  • the charging contacts on the docking station may be spring-biased for urging the charging contacts downwardly into engagement with said upward-facing charging contacts on the handheld suction unit.
  • the docking station may comprise a catch for engaging the handheld suction unit part to secure the stick-vac cleaner in the upright, docked position, the catch being arranged to hold the charging contacts on the handheld suction unit in engagement with the charging contacts on the docking station.
  • the catch may be spring-loaded for urging the charging contacts on the handheld suction unit into engagement with the charging contacts on the docking station. This may be in addition to, or alternative to, the charging contacts on the docking station being spring-loaded as mentioned above.
  • the docking station may comprise an opposing pair of clamping members, at least one of the clamping members being resiliently biased towards the other clamping member for resiliently clamping the stick-vac against the other clamping member to lock the stick-vac in the upright, docked position. This provides a particularly stable arrangement, wherein the stick-vac is clamped securely in the upright, docked position.
  • the pair of clamping members may consist of a lower clamping member arranged for clamping upwardly against a respective lower part of the handheld suction unit and an opposing, upper clamping member arranged for clamping downwardly against a respective upper part of the handheld suction unit.
  • the lower clamping member is fixed in use, relative to the wall, and the upper clamping member is resiliently biased downwards towards the lower clamping member.
  • the clamping members may be arranged for relative sliding movement along a clamp axis to engage the stick-vac, with at least one clamping member additionally arranged for movement into and out of clamping alignment with the other clamping member.
  • the ability to take a clamping member out of clamping alignment with the other clamping member allows for sequential engagement of the cleaner with the clamping members, which makes docking more convenient.
  • the movement of the clamping member into and out of clamping alignment may be a pivoting movement.
  • said pivotable clamping member may be arranged such that, when the docking station is in use mounted on a wall, the clamping member is arranged for pivoting movement away from the wall. This latter arrangement is considered particularly advantageous in reducing the footprint of the docking station on the wall, because the pivotable clamping member moves within the footprint of the docking station.
  • the upper clamping member is in the form of a docking cradle arranged to receive a first part of the handheld unit in a sliding fit, the docking cradle being slidable relative to the lower clamping member and resiliently biased towards the lower clamping member, the docking cradle additionally being pivotable away from the wall, in use, for movement out of clamping alignment with the lower clamping member in order to receive said first part of the handheld unit.
  • the lower clamping member may be a fixed clamping member comprising a locking element for engagement with a second part of the handheld unit to secure the stick-vac against lateral movement relative to the lower clamping member.
  • FIG. 1 is a schematic view showing a stick-vac cleaner in use
  • FIG. 2 is a close-up perspective view of part of the stick-vac cleaner in FIG. 1 ;
  • FIG. 3 is a perspective view showing a stick-vac cleaner supported on a wall by a docking station
  • FIG. 4 is a close-up, perspective view of the docking station and part of the stick-vac cleaner, prior to docking of the stick-vac cleaner;
  • FIG. 5 is a close-up, perspective view of the docking station and part of the stick-vac cleaner, during docking of the stick-vac cleaner;
  • FIG. 6 is a close-up perspective view showing the docking station and part of the stick-vac cleaner, in the upright docked position.
  • FIG. 7 is a perspective view showing a stick-vac cleaner supported in an alternative orientation, but still in an upright position, by a docking station.
  • FIG. 8 is a perspective view of the stick-vac cleaner docked with an alternative docking station
  • FIG. 9 is a perspective view of the alternative docking station in isolation
  • FIG. 10 is a perspective view showing part of the alternative docking station (and part of the stick-vac cleaner), illustrating pivoting movement of a docking cradle on the docking station;
  • FIG. 11 is a perspective view of the stick-vac cleaner and alternative docking station, illustrating release of the stick-vac cleaner from the docking station;
  • FIG. 12 is a perspective view of the stick-vac cleaner and alternative docking station, illustrating docking of the cleaner with the docking station;
  • FIG. 13 is a perspective view of the stick-vac cleaner and alternative docking station, further illustrating docking of the cleaner with the docking station;
  • FIG. 14 is a perspective of the stick-vac cleaner and alternative docking station, illustrating insertion of the cleaner at a relatively shallow angle for initially pivoting the docking cradle into alignment with a battery pack on the cleaner.
  • FIG. 1 shows a stick-vac cleaner 1 comprising a hand held suction unit, in the form of a handheld vacuum cleaner 3 , an elongate wand 5 and a floor tool 7 .
  • the handheld vacuum cleaner 3 comprises a motor-driven fan which is arranged inside a motor casing 9 for drawing air in through a suction nozzle 11 positioned at the front of the hand held vacuum cleaner 3 .
  • Dirty air drawn in through the suction nozzle 11 is ducted under the fan-generated suction pressure through a cyclonic separation system 13 , where dirt is separated from the air, before the relatively clean air is then exhausted back to atmosphere via one or more fine-particulate filters (not visible).
  • the dirt which is separated from the airflow inside the cyclonic separating system 13 is collected in a bin 15 for disposal.
  • the hand held vacuum cleaner 3 is powered by a multi-cell rechargeable battery which is housed in a battery pack 17 .
  • the handheld vacuum cleaner 3 is carried in the hand using a handle 19 .
  • the handheld cleaner 3 is relatively compact. Nevertheless, to promote a balanced feel in the hand, the heavier components such as the motor and the battery pack 17 are deliberately located relatively close to the handle 19 and the relatively light components such as the bin 15 are located further away from the handle 19 . Thus, the bulk of the mass of the handheld cleaner 3 is distributed towards the rear of the handheld cleaner 3 .
  • the elongate wand 5 is connected to the suction nozzle 11 , and the floor tool 7 is in turn connected to the lower end of the wand 5 . Dirty air is drawn in through a suction opening on the underside of the floor tool 5 and passes to the suction nozzle 11 via the wand 5 .
  • a catch 21 is provided for disconnecting the wand 5 from the handheld cleaner 3 , so that the handheld cleaner 3 can be used as a handheld cleaner rather than as part of the stick-vac cleaner 1 .
  • a catch 22 is also provided for disconnecting the floor tool 7 from the wand 5 , so that rather than being used as part of the stick-vac cleaner 1 , the handheld cleaner 3 and wand 5 can alternatively be used in combination with some other suction tool to form a “long-reach” handheld vacuum cleaner for cleaning into the upper corners of a room etc.
  • the stick-vac cleaner 1 is “top-heavy”, and conventionally this type of stick-vac cleaner has been awkward to store when it is not in use. If the stick-vac cleaner 1 is propped up against a wall in the upright position, with the floor tool 7 supported on the floor and the handheld cleaner 3 resting against the wall, the stick-vac cleaner 1 as a whole tends to be relatively unstable; on the other hand, if the stick-vac cleaner 1 is propped up against a wall upside down, with the handheld cleaner 3 supported on the floor and the floor tool 7 resting against the wall, the inclination is for a user to grasp the relatively dirty floor tool 7 in order to manipulate the stick-vac cleaner 1 back to the upright position for use.
  • the relatively dirty floor tool 7 may also mark the wall.
  • FIG. 3 illustrates an arrangement for conveniently storing the stick-vac cleaner 1 when it is not in use, in which the stick-vac cleaner 1 is supported in an upright position on a wall 21 by a wall-mounted docking station 23 .
  • the docking station 23 is shown in more detail in FIGS. 4 to 6 , which illustrate the stick-vac cleaner immediately prior to docking, during docking and in the docked position, respectively.
  • the stick-vac cleaner 1 docks with the docking station 23 via the battery pack 17 , which slots upwardly (in the direction A in FIG. 4 ) into a docking cradle 25 shaped to receive the battery pack 17 in a close sliding fit.
  • the front wall 25 a of the docking cradle 25 incorporates a blind slot 27 extending back from the entrance of the cradle 25 : this blind slot 27 accommodates the handle 19 as the battery pack is inserted upwardly into the docking cradle 25 .
  • a set of charging contacts is provided on the docking station 23 in the form of a charging jack 29 , which clips into a jack holder 31 positioned adjacent the end of the slot 27 .
  • the charging jack 29 connects to a mains supply via a plug-in power cord 34 and is arranged for engagement with a corresponding set of charging contacts on the handheld cleaner 3 in the docked position, via a charging socket 33 on the back of the handle 19 . Engagement of the charging jack 29 with the charging socket 33 completes a battery charging circuit for charging the stick-vac cleaner 1 in the docked position.
  • a catch 35 is provided to lock the stick-vac cleaner 1 securely in the docked position shown in FIG. 6 .
  • the catch 35 is pivotally mounted on a catch housing 36 fitted to the side of the docking cradle 25 and is spring-biased towards a locking position shown in FIG. 4 .
  • the catch 35 cooperates with a corresponding catch portion 37 on the handheld cleaner 3 , which engages with a first cam surface 35 a on the underside of the catch 35 to pivot the catch 35 away from the locking position shown in FIG. 4 and into the position shown in FIG. 5 .
  • the catch portion 37 eventually clears the catch 35 , which is then spring-biased back towards the locking position, and into locking engagement against the underside of the catch portion 37 to hold the stick-vac cleaner 1 in the docked position.
  • the stick-vac cleaner 1 When it is docked with the docking station 23 , the stick-vac cleaner 1 is laterally supported in the upright position by the side walls of the docking cradle 25 .
  • the side walls of the docking cradle 25 advantageously provide direct lateral support for the relatively heavy handheld cleaner 3 .
  • the weight of the stick-vac cleaner 1 is effectively supported on the catch 35 .
  • the catch 35 advantageously directly supports the relatively heavy handheld cleaner 3 .
  • the manufacturing tolerances are controlled so that the catch 35 holds the charging socket 33 in engagement with the jack 29 in the docked position.
  • the battery onboard the handheld cleaner is reliably charged when the stick-vac cleaner 1 is in the upright, docked position.
  • Control of manufacturing tolerances may be particularly important in an arrangement such as the one shown in FIGS. 1 to 6 , because the charging socket 33 faces upwards when the stick-vac cleaner is in the upright, docked position so the weight of the stick-vac cleaner tends to pull the socket 33 away from the jack 29 .
  • the potentially negative effects of manufacturing tolerance on charging reliability can be mitigated by spring loading the charging contacts on the docking station.
  • the jack holder 31 may be spring-biased downwardly for ensuring positive engagement of the charging jack 29 with the charging socket 33 .
  • a user In order to remove the stick-vac cleaner 1 from the docked position, a user simply releases the catch 35 using a manual release lever 38 and slides the stick-vac cleaner downwardly until the battery pack 17 disengages from the docking cradle 25 . The stick-vac cleaner is then advantageously in the upright position ready for use.
  • the top side 35 b of the catch 35 is ramped appropriately (see FIG. 4 ).
  • the top side of the catch 35 may be flat (indicated very schematically by the dotted line B in FIG. 6 ), which has the advantage that the top side cannot then transmit any accidental lateral release force to the catch 35 , for example as a result of the handheld cleaner 3 being knocked by a user in the docked position.
  • This docking station 23 can be secured to the wall 21 using wall-fixing screws (not shown) which are screwed into the wall 21 through countersunk clearance holes (not visible) in the rear wall 25 a of the cradle 25 .
  • wall-fixing screws (not shown) which are screwed into the wall 21 through countersunk clearance holes (not visible) in the rear wall 25 a of the cradle 25 .
  • Any other suitably strong conventional wall-fixings may be used to mount the docking station 23 on the wall 21 , including surface fasteners such as adhesive pads or the like.
  • the stick-vac cleaner 1 is stored in a fully upright, docked position, with the wand 5 effectively “hanging” vertically downwards.
  • this is not considered necessary to obtain the advantages of the invention, provided that the stick-vac cleaner is stored in an upright position.
  • FIG. 7 shows the docking station 23 mounted on the wall 21 in an alternative orientation, using a mounting bracket 39 which is secured to the wall 21 (e.g. using screws) and which is arranged to engage with a mounting lug 41 ( FIG. 4 ) on the docking cradle 25 to support the docking station 23 on the wall.
  • a mounting bracket 39 which is secured to the wall 21 (e.g. using screws) and which is arranged to engage with a mounting lug 41 ( FIG. 4 ) on the docking cradle 25 to support the docking station 23 on the wall.
  • the catch housing 36 incorporates mounting points for a crevice tool and an upholstery brush, which are retained on the catch housing in a friction-fit.
  • FIG. 8 shows an alternative wall-mountable docking station 230 for locking the stick-vac cleaner 1 in an upright, docked position on a wall.
  • the handheld unit 3 is clamped securely in the upright, docked position between an upper clamping member, in the form of a docking cradle 250 , and a lower clamping member, in the form of a bin support 350 .
  • the clamping load is represented in FIG. 8 by F 1 and F 2 , and is in direct opposition to the weight of the cleaner.
  • the bin support 350 is fixed to a wall mounting plate 370 ( FIG. 9 ) which in use is secured flat against the wall, in the orientation shown, using suitable wall fixings.
  • the lower bin support 350 is actually formed integrally with the wall mounting plate 370 , though this is not essential.
  • a locking element 360 ( FIG. 9 ) is provided on the bin support 350 , which engages with a catch recess 15 a (just visible in
  • FIG. 11 on the front of the bin 15 to secure the bin 15 against lateral movement in the docked position.
  • ‘Universal fit’ tool holders 340 are provided on the underside of the lower bin support 350 for retaining tools, or possibly the wand 5 .
  • the docking cradle 250 is similar to the docking cradle 25 , albeit shorter in length, with the docking cradle 250 likewise being arranged to receive the battery pack 17 in a close sliding fit.
  • a blind slot 270 is provided in the front wall of the docking cradle 250 to accommodate the handle 19 , and a mains-operated charging jack 290 is held within a jack holder 310 , adjacent the blind end of the slot 270 , for engaging the charging socket 33 on the back of the handle 19 ( FIG. 8 ).
  • the docking cradle 250 is supported by a separate carriage plate 390 ( FIG. 9 ) which can move up and down relative to the wall mounting plate 370 to vary the (vertical) separation between the docking cradle 250 and the bin support 350 .
  • a biasing spring 410 (just visible in FIG. 9 through a window in the carriage plate 390 ) acts between the carriage plate and the mounting plate 370 to bias the docking cradle 250 downwardly towards the bin support 350 .
  • the spring 410 thus provides a positive clamping action between the docking cradle 250 and the bin support 350 which helps to maintain a reliable electrical contact between the charging jack 290 and the charging socket 33 in the docked position.
  • the docking cradle 250 is pivotally mounted on the carriage plate 390 via a supporting yoke 430 . This allows the docking cradle 250 to be pivoted away from the carriage plate 390 , about the axis O, to move the docking cradle 250 out of clamping alignment with the bin support 350 (see FIG. 10 ).
  • the user grasps the stick-vac cleaner and pushes the stick-vac cleaner 1 upwards, moving the docking cradle 250 against the bias of the spring 410 until the locking element 360 clears the catch recess 15 a in the bin 15 .
  • the stick-vac cleaner 1 can then be manipulated to pivot the docking cradle 250 laterally away from the mounting plate and out of clamping alignment with the bin support 350 , which then allows the battery pack 17 to slide out of the docking cradle 250 , past the front edge of the bin support 350 , to release the cleaner 1 ( FIG. 11 ).
  • Release of the stick-vac cleaner 1 from the docked position shown in FIG. 8 is a one-handed operation, in the sense that a user does not need to use one hand to hold the cleaner 1 and the other hand to operate the docking station 230 (the user may of course optionally grasp the cleaner 1 with two hands when docking or releasing the cleaner 1 , and indeed the docking station 230 advantageously allows him or her to do so).
  • the plug-in power cord 340 extends down behind the mounting plate 370 , through a channel 370 a which is molded into the mounting plate 370 .
  • the upper end of the channel 370 a is trumpet-shaped: this helps reduce stress on the cord 340 during pivoting movement of the docking cradle 250 .
  • a stop 340 a is provided on the power cord 340 to prevent take up of the power cord 340 inside the channel 370 a as the docking cradle 250 is pivoted about the axis O; the use of the stop 340 a further reduces stress on the power cord 340 by ensuring that the length of power cord 340 remains fixed between the upper end of the channel 370 a and the jack holder 290 .
  • the locking element 360 is provided with a ramped front surface 360 a ( FIG. 10 ) to allow the bin 15 initially to bump over the locking element 360 as the docking cradle 250 is moved back into clamping alignment with the bin support 350 .
  • the locking element may alternatively have a flat front face, or indeed be a fixed locking element, which would then require the user to push the cleaner 1 and docking cradle 250 upwards to make sure that the bin 15 fully clears the locking element before the docking cradle 250 is moved back into clamping alignment with the bin support 350 .
  • the docking station 230 incorporates a number of features which help reduce accidental damage to the cleaner 1 and/or docking station 230 if the cleaner 1 is subject to a lateral mechanical shock in the upright, docked position. These include the provision of ramped side surfaces (only side surface 360 b is visible in FIG. 10 ) on the locking element 360 which allow the bin 15 to bump laterally over the locking element 360 under a lateral impact force, and also the provision of a degree of lateral ‘play’ between the docking cradle 250 and the carriage 390 .
  • a guide surface (for example the curved surface 350 a of the bin support 350 ) may also be provided to guide the cleaner 1 upwards under a lateral force—so that the lateral load is taken up by movement of the docking cradle 250 vertically against the bias of the spring 410 .
  • Guide surfaces may also optionally be provided which guide the cleaner 1 under a lateral force so that the docking cradle 250 consequently rotates outwards about the axis “O”, in which case the cleaner 1 may “break out” and release automatically under a sufficient lateral load.
  • FIG. 12 shows insertion of the battery pack 17 into the docking cradle 250 with the docking cradle 250 having already been moved out of clamping alignment with the bin support 350 .
  • the docking cradle 250 will tend to move under its own weight back into clamping alignment with the bin support 350 .
  • partially inserting the battery pack 17 into the docking cradle 250 as shown in FIG. 14 , will nevertheless tend to pivot the docking cradle 250 away from the wall and into alignment with the battery pack 17 , so that one-handed docking of the cleaner 1 is still possible.
  • This “self-alignment” of the docking cradle 250 is helped in part by the relatively short length of the docking cradle 250 (cf. docking cradle 25 in FIGS. 4 to 6 ) which allows the battery pack 17 to be inserted into the docking cradle 25 at a relatively shallow angle.
  • a biasing spring (not shown) could be used deliberately to bias the docking cradle 250 back into clamping alignment with the bin support 350 following release of the cleaner 1 , if desired.
  • either or both of the clamping members on the docking station may be mounted for movement relative to the wall against the action of a resilient bias.
  • the docking cradle 250 could be fixed to the wall, and the bin support 350 could be mounted for sliding movement, relative to the docking cradle 250 , against the action of a biasing spring.
  • the upper clamping member is fixed, the lower clamping member may be moveable into and out of clamping alignment with the upper clamping member, analogous to the operation of the docking cradle 250 in FIGS. 11 to 14 .
  • the catch 35 and/or docking cradle 25 may also be arranged as clamping members.
  • the catch 35 may be spring biased so that, in the locking position, the catch actually positively clamps the cleaner 1 upwardly against the docking cradle 25 , with the release lever 38 being used to pivot the catch 35 out of clamping alignment with the docking cradle 25 , as desired.
  • the docking cradle 25 may likewise be spring biased to clamp the cleaner securely against the catch 35 .
  • the movement of one of the clamping members (e.g. the docking cradle 250 ) into and out of clamping alignment with the other clamping member (e.g. the bin support 350 ) need not be a pivoting movement.
  • the docking cradle 250 could be arranged to slide laterally out of clamping alignment with the bin support 350 .
  • the use of a pivoting clamping member does, however, help minimize the foot print of the docking station.
  • first clamping member which can be moved into and out of clamping alignment with an opposing clamping member is advantageous, but not essential for one-handed docking and release.
  • the docking cradle 250 could alternatively be fixed to the sliding carriage plate 390 so that it is maintained at all times in clamping alignment with the fixed bin support 350 .
  • a fixed docking cradle would inhibit insertion of the battery pack to a degree; this could be mitigated to a certain extent, if desired, by minimizing the length of the docking cradle so that the battery pack 17 can be inserted into the fixed docking cradle at a very shallow angle.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Robotics (AREA)
  • Electric Vacuum Cleaner (AREA)
  • Electric Suction Cleaners (AREA)
US13/035,612 2010-03-12 2011-02-25 Vacuum cleaner arrangement Abandoned US20110219571A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB1004149.9 2010-03-12
GB1004149.9A GB2478599B (en) 2010-03-12 2010-03-12 A vacuum cleaning arrangement
GB1014423.6A GB2478614B (en) 2010-03-12 2010-08-31 A vacuum cleaner arrangement
GB1014423.6 2010-08-31

Publications (1)

Publication Number Publication Date
US20110219571A1 true US20110219571A1 (en) 2011-09-15

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ID=42261487

Family Applications (2)

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US13/035,612 Abandoned US20110219571A1 (en) 2010-03-12 2011-02-25 Vacuum cleaner arrangement
US13/035,615 Active 2034-02-08 US9155431B2 (en) 2010-03-12 2011-02-25 Vacuum cleaner arrangement

Family Applications After (1)

Application Number Title Priority Date Filing Date
US13/035,615 Active 2034-02-08 US9155431B2 (en) 2010-03-12 2011-02-25 Vacuum cleaner arrangement

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US (2) US20110219571A1 (fr)
EP (1) EP2544575B1 (fr)
JP (2) JP2011189133A (fr)
CN (2) CN102188189B (fr)
ES (1) ES2602838T3 (fr)
GB (2) GB2478599B (fr)
WO (2) WO2011110826A1 (fr)

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