CN1179088A

CN1179088A - Vaccuum cleaner

Info

Publication number: CN1179088A
Application number: CN 96192634
Authority: CN
Inventors: J·戴森
Original assignee: Notetry Ltd
Current assignee: Dyson Technology Ltd
Priority date: 1995-01-27
Filing date: 1996-01-24
Publication date: 1998-04-15

Abstract

The invention provides a vacuum cleaner comprising a housing containing apparatus for separating dirt and dust from an airflow, the vacuum cleaner being configured so as to allow it to be positioned on a flight of stairs, wherein the housing has a forward end shaped so as to facilitate the sliding of the vacuum cleaner over the flight of stairs in an upward direction.

Description

Vacuum cleaner

The present invention relates to a kind of vacuum cleaner, particularly a kind of column type vacuum cleaner.

Almost do not have vacuum cleaner be designed to can be on a flight of stairs stable position, no matter be vertical type or column type.Disclose a kind of column type vacuum cleaner among the BP No.658328, it is equipped with the slide plate that is fixed on the cylindrical cabinet bottom surface, and the groove above the slide plate makes the dust catcher can be by " hook " on the bead of stair.This design allows the user can use the flexible pipe or the control stick of two-hand control dust catcher.A kind of improved design of similar above-mentioned design has been described in our unsettled UK Patent Application No.9417749.0 and corresponding PCT application No.PCT/GB94/02575.

Do not have in two kinds of dust catchers of this of prior art a kind of be designed to or plan to be designed to not need the user to lift whole dust catcher and place it in this section stair another make things convenient for the position, but the form that can on a flight of stairs, move up and down.This just may be very heavy, especially must hold when the user reorientates dust catcher under the situation of flexible pipe or control stick.If dust catcher is gone upstairs or is allowed the dust catcher cunning go upstairs and needn't lift fuselage and will make things convenient for manyly in tow, but the profile of each is all very difficult and heavy for drawing or sliding in two kinds of dust catchers of prior art, and can cause the sizable vibration of dust catcher.This can damage the work of dust catcher.

An object of the present invention is to provide a kind of vacuum cleaner that can on a flight of stairs, easily handle.

The invention provides a kind of vacuum cleaner as claimed in claim 1.Advantage of the present invention will be stated in the dependent claims.

Upwards slide and the appearance that the cabinet front end carries out is meaned that upwards sliding of dust catcher is level and smooth more and vibration is littler so that the damage to dust catcher that is caused by vibration drops to minimum along a flight of stairs for ease of dust catcher.

Below with reference to accompanying drawings embodiment of the present invention are set forth, wherein:

Fig. 1 is that vacuum cleaner of the present invention is placed on the side view on a flight of stairs;

Fig. 2 a～2d has illustrated when the continuous position of dust catcher when a flight of stairs upwards slides;

Fig. 3 a and 3b have illustrated that second embodiment of the present invention is placed on the situation on a flight of stairs.

A vacuum cleaner of making according to the present invention obtains explanation in Fig. 1.Vacuum cleaner 10 mainly comprises a cabinet 12, and it has a base 14 and a case lid 16.Flexible pipe 18 links to each other with the case lid 16 of cabinet 12 by swivel connector 20.Be equipped with cabinet 12 inside: grey sharp separator 22, motor 24 and jockey, be used to drive vacuum so that dirty air is sucked cabinet 12, dirt and dust particle are separated from air stream, then the air of cleaning is discharged into the atmosphere along flexible pipe 18.The internal operation of dust catcher 10 is not a major part of the present invention, no longer describes in detail here.

The base 14 of cabinet 12 has groove 26, and it can match with the bead of stair tread.Owing to have this appearance, what dust catcher 10 can be stable is positioned on a flight of stairs.This appearance is the main contents of our unsettled UK Patent Application No.9417749.0 and PCT application No.PCT/GB94/02575.The base 14 of cabinet 12 is supported by adjacent two-stage step A, B and contact portion is 28a, 28b.

When dust catcher 10 in use the time, the user wish can be only by draw flexible pipe 18 with dust catcher 10 along upwards pulling of a flight of stairs.Easier for dust catcher 10 is upwards slided along arrow 30 directions, in the Front-end Design of cabinet 12 leading edge 32.Leading edge 32 is protruded and is inclined upwardly with respect to most of plane of the base 14 of cabinet 12 to cabinet 12 the place aheads, with convenient user when arrow 30 directions apply a pulling force for flexible pipe 18, leading edge 32 provides a smooth surface for the bead of step C, and step C is the current place of dust catcher step A, B top and A, B next-door neighbour's a step.Enough pulling force along arrow 30 directions will make dust catcher 10 upwards be drawn along this section stair, and leading edge 32 relies on its shape to make dust catcher 10 level and smooth moving up.The lower surface 34 of leading edge 32 provides a surface, the front portion that makes dust catcher 10 by means of the smoothed guiding in this surface the bead of step C.

Fig. 2 a～2d illustrates when imposing on 18 1 power that make progress of flexible pipe along arrow 30 directions, the situation that moves upward of dust catcher 10.Position shown in Fig. 1 illustrates again in Fig. 2 a, and is regarded initial position herein.

Contact portion

28a and 28b contact with the tread of step A, B.The contacting with the bead of step C foremost or adjoin mutually of leading edge 32.

Applying a pulling force along arrow 30 directions makes dust catcher 10 move up along

stair.Contact portion

28a and 28b shift out and disengage from the tread of step A and B, at this moment dust catcher by the bead of step B and C by respectively with groove 26 (or another part of cabinet 12 bases 14) surface with realize supporting with contacting of leading edge 32 lower surfaces 34.Continue pulling along arrow 30 directions and make dust catcher 10 continue to move up, contact and be supported with the base 14 of cabinet 12 up to the either side of dust catcher at groove 26 along the bead of step B and C.At last, the bead of step C will contact with the one side at least of groove 26, so

contact portion

28a, 28b will contact with the tread of step B and C.To guarantee that

contact portion

28a, 28b are positioned at apart from the bead of step B and C place enough far away so that dust catcher 10 supports with being stabilized along further moving of arrow 30 directions.New settling position identical with shown in Fig. 2 a, just dust catcher 10 is supported in step B and C goes up and no longer be step A and B.

Be to be understood that the structure shown in Fig. 1 and 2 is not very detailed.Another embodiment of the invention illustrates in Fig. 3 a and 3b.In these two figure, dust catcher 10 ' cabinet 12 ' by a slide plate 15 ' with bottom lock.One on slide plate 15 ' have to the forward position stretch and retrousse leading edge portion 32 ', it is adapted to contact with the step bead, this step be positioned at dust catcher 10 ' the top adjoined mutually of current support level.Slide plate 15 ' tail end have a projection 17 ', it is by pivot and slide plate 15 ' be connected.Projection 17 ' and slide plate 15 ' between be equipped with spring 19 ', it make projection 17 ' free end depart from out slide plate 15 '.

Projection 17 ' purpose provide a braking or arresting stop, prevent that dust catcher 10 ' along stair is to downslide.The Support Position of this moment shown in Fig. 3 b, its protrusions 17 ' deviate to an operating position that can be used as brake apparatus, in the use, projection 17 ' contact with step surface is to prevent dust catcher 10 ' to downslide.Projection 17 ' can comprise the device that tightens with step surface can be used spike when for example needing, claw or rubber feet etc.Except leading edge portion 32 ' have the inclination that makes progress, the remainder of slide plate 15 ' bottom is level and smooth and is the plane basically.

If think upwards to spur dust catcher 10 ' or make dust catcher 10 ' upwards slide along stair, need apply a power that makes progress along arrow 30 ' direction, can be by drawing this power of flexible pipe 18 ' apply.Dust catcher just moves upward along arrow 30 ' direction then, leading edge portion 32 ' contact with the step bead, and this step is arranged in and top of adjoining mutually, dust catcher current support level the top.Leading edge portion 32 ' dust catcher 10 ' cabinet 12 ' bottom guiding step bead, like this, moving upward just becomes smoothly and has easily controlled.When projection 17 ' when the step surface bead, it is to being offset in the opposite direction with spring 19 ' bias voltage side, in case but it passed through this bead rear spring 19 ' action also can make its operating position of flange 17 ' return.If user decision remains on this reposition with dust catcher at that time, then projection 17 ' free end will stop dust catcher further to downslide with prone contact of nearest step.

Be to be understood that projection 17 ' in fact can be installed in slide plate 15 ' be essentially on the optional position of planar section.Especially, projection 17 ' can be installed in dust catcher 10 ' front end or adjacent front end position, or be contained in dust catcher 10 ' foremost and the position between the rearmost end.

Shuo Ming embodiment shows cabinet 12,12 ' comprise the spiral vortex type device in the accompanying drawings, is used for dirt and dust are separated from flexible pipe 18,18 ' leaked-in air stream.This is a preferred feature, but should not be regarded as only limiting to the present invention.

Claims

1. vacuum cleaner, comprise a cabinet, it is equipped with the device that is used for from air stream eliminating impurities and dust, this vacuum cleaner has a kind of profile that it locatees that allows on a flight of stairs, wherein the Front-end Design of cabinet becomes to help the shape that vacuum cleaner upwards slides along a flight of stairs.

2. vacuum cleaner as claimed in claim 1, wherein the front end of cabinet has an acclivitous leading edge, and vacuum cleaner is when a flight of stairs is upwards spurred in using, and this leading edge is suitable for providing a level and smooth surface to the step bead.

3. vacuum cleaner as claimed in claim 1 or 2, wherein chassis base is made the shape that vacuum cleaner is located on a flight of stairs.

4. vacuum cleaner as claimed in claim 3, wherein chassis base comprises a upwardly extending groove, is used for cooperating with the step bead, is contained in the contact portion of groove either side, is used for contacting with two adjacent steps and supporting vacuum cleaner at this place.

5. the described vacuum cleaner of one of claim as described above wherein provides a projection, is used for contacting with step surface and preventing that vacuum cleaner from gliding along a flight of stairs.

6. vacuum cleaner as claimed in claim 5, wherein the base of cabinet has projection.

7. as claim 5 or 6 described vacuum cleaners, its protrusions can move between two positions, and a position is the operating position, and projection is to extend outside vacuum cleaner with most of plane of chassis base is angled; Another is an off-position, projection substantially with most of plane parallel of chassis base.

8. vacuum cleaner as claimed in claim 7, its protrusions is biased to the operating position.

9. as arbitrary described vacuum cleaner in the claim 5 to 8, its protrusions is contained in the position of vacuum cleaner tail end or contiguous tail end.

10. as arbitrary described vacuum cleaner in the claim 5 to 8, its protrusions is contained on the position that is located substantially on the vacuum cleaner center.