CN100341453C - Suction nozzle configuration - Google Patents
Suction nozzle configuration Download PDFInfo
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- CN100341453C CN100341453C CNB2005100749459A CN200510074945A CN100341453C CN 100341453 C CN100341453 C CN 100341453C CN B2005100749459 A CNB2005100749459 A CN B2005100749459A CN 200510074945 A CN200510074945 A CN 200510074945A CN 100341453 C CN100341453 C CN 100341453C
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- suction nozzle
- extends
- conduit
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- 239000000428 dust Substances 0.000 claims description 22
- 238000004140 cleaning Methods 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims 2
- 230000005540 biological transmission Effects 0.000 claims 1
- 230000009977 dual effect Effects 0.000 abstract 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 238000012937 correction Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 241000628997 Flos Species 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001815 facial effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Nozzles For Electric Vacuum Cleaners (AREA)
Abstract
A suction nozzle for a floor care appliance such as an upright vacuum cleaner having at least a first channel located above an agitator to carry air and dirt to a suction passageway. The cleaner has several embodiments, one of which has a single channel and a single agitator. Another embodiment has front and rear suction ducts, a channel, and a single agitator. Yet another embodiment has the single channel and dual agitators. Still yet another embodiment has front and rear suction ducts and dual agitators. Further yet still, another embodiment has front and rear suction ducts, a channel, and dual agitators. Several embodiments of an agitator drive assembly are provided using various means to provide rotary power to the agitator(s).
Description
The application is dividing an application of No. 02103481.8 patent application submitting on February 6th, 2002.
Technical field
The present invention relates to a kind of suction nozzle with equipment single or multiple agitators, that be used for floor cleaning, this equipment also has single or multiple confessions and carries the guide groove that the air-flow of dust enters.
Background technology
Single conduit or DLC structure that present dust catcher has had use to transport dust.Yet all these conduits are not arranged on the center of suction nozzle and are arranged on agitator top.And, though use the dust catcher of double stirrer to exist, generally speaking and be of little use.Actual needs be to have a plurality of floor cleaning apparatus guide groove and that select at least two agitators for use that transport dust.
Summary of the invention
The invention provides the embodiment of a plurality of floor cleaning apparatus, for example its suction nozzle has some heteroid upright vacuum cleaners.These different embodiment can be provided with a guide groove above one or more rotating spoons, make the performance of next step collection to improve suction nozzle to be transported to suction channel from ground dust out particulate and with dust particle.Suction catheter before or after the embodiment of suction nozzle can also comprise, to remove the floor-dust particulate and dust particle to be transported to suction channel and when collecting, improve suction nozzle from ground dust out particulate and dust particle is transported to the performance of suction channel.
Description of drawings
With giving an example a preferred embodiment of the present invention is described with reference to the accompanying drawings.
Fig. 1 is the nozzle unit stereogram of the preferred embodiment of the present invention;
Fig. 2 is the top view of nozzle unit among Fig. 1;
Fig. 3 is the front view of Fig. 2;
Fig. 4 is the rearview of Fig. 2;
Fig. 5 is the bottom view of Fig. 2;
Fig. 6 is the cutaway view of a change nozzle unit embodiment, has single guide groove to be centrally placed in the top of agitator;
Fig. 7 is that wherein this nozzle unit is similar to the nozzle unit shown in Fig. 6 along the nozzle unit cutaway view of the preferred embodiment shown in Fig. 1～5 of the intercepting of the VII-VII line among Fig. 3, and it has the dummy pipe and the rear tube of a guide groove and subtend side extension;
Fig. 8 is the cutaway view of the 3rd embodiment of nozzle unit, and wherein single semicircle guide groove places the top of two rotating spoons between two parties;
Fig. 9 is the cutaway view of the 4th embodiment of nozzle unit, has dummy pipe and rear tube and two agitators of extending to the side;
Figure 10 is the cutaway view of the 5th embodiment of nozzle unit, dummy pipe that extend oriented side and rear tube, two agitators, and guide groove is centrally placed in the top of two agitators;
Figure 11 shows the counterrotating helix agitator assembly that interweaves that drives first agitator with single flat belt, wherein the outer surface of first agitator is around a hurricane band is arranged, a hurricane band interlock that centers on it and the second agitator outer surface drives second agitator;
Figure 12 shows another agitator assembly, and wherein a flat belt drives a belt pulley, and belt pulley drives a toothed timing belt, and toothed timing belt drives a pair of rotating spoon;
Figure 13 also shows another agitator assembly, and wherein a pair of rotating spoon is by a belt and a worm-gear driven.
The specific embodiment
According to the preferred embodiment of the present invention, Fig. 1～5 and Fig. 7 show the suction nozzle 28 of the vacuum cleaner 10 that has handle 11.Suction nozzle 28 shown in Figure 1 comprises that an agitator cover 12,14, one in 13, one agitators in agitator chamber are positioned at first guide groove 20 at 13 tops, agitator chamber and the forward and backward suction catheter 40,42 that extend a subtend side.Suction nozzle 28 is a part of the represented floor cleaning apparatus of dotted line among Fig. 1 substantially.Suction nozzle 28 itself comprises agitator cover 12, and it is injection structure preferably, utilizes securing member, passes the bearing that is positioned on agitator cover 12 corresponding sides, is connected securely on the suction nozzle 28, without any restriction, can comprise screw or rivet to securing member.This is a general structure well known in the prior art.The United States Patent (USP) 4,178 that for example has, announce on November 18th, 1979 by the inventor, the dust catcher described in 653, only this is with it as a reference.
Shown in Fig. 2～5, suction nozzle 28 has agitator cover 12, and it comprises a connected back discharge tube 27 that stretches to the back.This back discharge tube 27 that stretches to the back constitutes a suction channel 25, connect a motor fan system (not shown) routinely, and connect the forward and backward conduit 40,42 that extends a subtend side respectively and place rotating spoon 14 in the agitator cover 12.As shown in Figure 5, chassis 34 covers the bottom of agitator cover 12, and comprises the slit 35 of a dust suction; Agitator 14 is centrally placed in the top of dust suction slit 35, forms the surface with the surface at suction nozzle 28 places and contacts.The structure of this routine by the applicant all, in 5,513,418 announcements of United States Patent (USP) that on May 7th, 1996 announced, only for referencial use at this.
Referring now to shown in Figure 2,, again in conjunction with Fig. 3 and Fig. 4, back discharge tube 27 is turning backward and is stretching out agitator chamber 13, with the electrical motor fan system connectivity (not shown) of the routine that is arranged on suction nozzle 28 downstreams.Back discharge tube 27 is made up of vertical wall 27a, 27b and top and bottom horizontal wall 27c, 27d, forms a vertically extending rectangle suction channel 25.As shown in Figure 5, the front end of this suction channel 25 has opening and merges in opening 33 places to the forward and backward conduit 40,42 that extend the side.Certainly, back discharge tube 27 also can be to be fit to other shape that air communication is crossed.
Fig. 2 has shown the shape of the front side conduit 40 that extends to the side, in the longitudinal direction, provides as far as possible to be close to air velocity stably.The front side conduit 40 that extends to the side extends continuously unchangeably along its length direction, up to touching back discharge tube 27.The front side conduit 40 that extends to the side also comprises the tilting parts of vessels 44 that makes progress, and this parts of vessels 44 comprises near extended roofs 45 end 48 of agitator cover 12 and back discharge tube 27 and being oppositely arranged.Roof 45 from then on end extends to the medium position of agitator cover 12, and angle upwards and be consistent.The vertical wall segments 47 (as Fig. 7) on roof 45 length and inner cylinder part or surface 36 is integrally formed; Vertical wall segments 47 constitutes the part of the agitator chamber 13 at first agitator, 14 places.Because roof 45 oblique settings are up to its inner tail end, vertical wall segments 47 (as Fig. 7) forms the triangular planar facial contour.Tilting parts of vessels 44 comprises that also one is parallel to vertical wall segments 47 and the front face 46 (as Fig. 7) similar to its shape, constituted complete tilting parts of vessels 44 jointly, except as the relation of following it and the chassis 34 that will describe and the anterior conduit 40 that extends to the side.
Still referring to Fig. 2～4, parts of vessels 44 air-flows of the inclination by the anterior conduit 40 that extends to the side enter the transition portion 54 of conduit, and the underside wall that forms by the top by the interior cylindrical surface 36 of agitator chamber 13, converge with back discharge tube 27.Transition portion 54 has a short coupling part 56 at the interior extremity place of adjacent pipes parts 44, tail end direct and parts of vessels is communicated with, and contour with this tail end.Though it does not have the conduit extension keeping stable air velocity, be essential for the injection moulding of dummy pipe and agitator cover 12.Ideal situation is that it is so short and concise and to the point, the stability of the speed when being unlikely to have a strong impact on suction airstream by dummy pipe.
Another end of dummy pipe 40 has the tubulature parts 70 of the inclination of similar and parts of vessels 44, and it is along the agitator cover 12 oblique conduit unfolded parts 60 that extend up to.The tubulature parts 70 of this inclination are because its extended attribute makes the travelling speed that sucks the air-flow in it keep stable.It ends at a vertical wall 72 that extends, and vertically extends wall 72 along interior cylindrical surface 36 upwards and stretch out, and forms another wall portions of conduit unfolded part 60.The wall that this wall portion and one extends obliquely engages, and this wall also extends along interior cylindrical surface 36, near the opening that ends at this wall portion.
Again referring to Fig. 2～5, the rear duct 42 of extending to the side is extended with the mode of the expansion rear side along agitator cover 12.It comprises an acclivitous roof 78 and an acclivitous antetheca 50.The part of acclivitous front face 50 is made of a part and the vertically extending reinforced wall 52 of rear side of interior cylindrical surface 36 outer surfaces, vertical stretch.This wall portion 52 is made of acclivitous roof 78, and extends in the past, and is in alignment with the top of back discharge tube 27 basically.Form the back of agitator cover 12 in its bottom.Rear tube 42 ends at the contour floss hole of height of and actual back discharge tube 27 suction inlets, and converges connection with it.The suction inlet of the anterior conduit 40 that extends to the side also converges connection with these two openings, and flushes basically with the antetheca 50 of rear tube 42.
In order to make injection moulding easier, the deployment catheter parts do not have roof when constituting, so the roof of definite top profile is to be installed in herein with gluing or similar fashion with the vertical terminal contour of deployment catheter parts, thereby formation is to a confined space of the anterior conduit 40 of side extension.
The cross section of the suction nozzle 28 in the preferred embodiment as shown in Figure 7.Agitator cover 12 comprises an interior cylindrical surface or part 36, and is identical in the prior art of this and dust catcher.This part or surface 36 generally are fronts from agitator cover 12, to inner and extend to the periphery, up to being blocked by first guide groove 20.First guide groove 20 comprises a roof 21, with first, second sidewall 22,24 that extends from its relative both sides.Roof 21 can be the plane, as shown in Fig. 6, Fig. 7 and Figure 10, or semicircle, as shown in Figure 8, to eliminate any wedge angle.Roof 21 can have substantially uniform depth, and perhaps along with first guide groove 20 during near back discharge tube 27, its degree of depth can increase progressively.
As previously mentioned, inner cylinder part or surperficial 36 is ended by the first side wall 22; Then from of the periphery outwards continuity of second sidewall 24 at first guide groove 20.First guide groove 20 runs through suction nozzle 28.As shown in Figure 7, first guide groove 20 is positioned at the centre position of the top of agitator cover 12.Yet first guide groove 20 also can be positioned at other position on inner cylinder part or surface 36.The position of Fig. 6～8 and first guide groove 20 shown in Figure 10 is best, and it can provide stable air-flow, strengthens the ability of driving away dust.
Inner cylinder part or surface 36 end in the rear portion of agitator cover 12.First agitator 14 along the suction connecting portion 26 of first guide groove 20 with displace air to a tubulose, sucks connecting portion 26 and becomes one with agitator cover 12 in agitator cover 12.Suck connecting portion 26 subsequently with connect a hard suction nozzle conduit and be communicated with, lead to the motor fan system (not shown) of suction nozzle 28.The sealing that sucks connecting portion 26 and suction nozzle conduit can be any available mode in the prior art.
Be applied to the attraction that sucks connecting portion 26, produce one by agitator cover 12 and suck air-flow.Because the position and the shape of first guide groove 20, the speed and the pressure on suction nozzle 28 surfaces relatively tend towards stability.
As shown in Figure 6, in another embodiment of the present invention, vacuum cleaner 10 comprises first guide groove 20 and the single agitator 14 component suction nozzle 228 in similar to preferred embodiment.Similar interior cylindrical surface or part 236 are ended by a guide groove 20.Yet, there is not forward and backward suction lead 40,42, the surface portion 236 of the agitator chamber 213 of formation is continuous, and is crossing with the forward and backward sidewall of agitator cover 212 inside.
As shown in Figure 8, in the third embodiment of the present invention, vacuum cleaner 10 comprises a component suction nozzle 328, and it has first guide groove 320 and two agitators 14,16.Agitator cover 312 and agitator chamber 313 must possess enough spaces, to hold agitator 14,16 side by side, still can make air flow through first guide groove 320 easily.Double stirrer 14,16 should lean on ground closely, farthest lower surface dust is on the ground removed.The setting that in the embodiment of following employing double stirrer, is not always the case of this structure.Certainly, can notice that first and second agitators 14,16 can rotate in the same way; Be to be taken at used stirrer drive clockwise or counterclockwise.In other words, agitator 14,16 can be mutually towards rotation also can be towards mutual reverse rotation together.As Fig. 8 and shown in Figure 10, first guide groove 320 can be above between first and second agitators 14,16; First guide groove 320 has a semicircular section, be formed in interior cylindrical surface or the zone 336, and middle part is above agitator 14,16.Owing to there has not been suction lead 40,42, interior cylindrical surface or part 336 are extended continuously along the inner chamber antetheca and the rear wall of agitator cover 312, the place that is disconnected by first guide groove 320 except the centre.
As shown in Figure 9, in the fourth embodiment of the present invention, vacuum cleaner 10 comprises a component suction nozzle 428, and it has at least two agitators 14,16.And, only have forward and backward conduit 40,42.As previously mentioned, these agitators 14,16 can be by positive hour hands or inhour in same direction rotation direction, otherwise these agitators 14,16 also can rotate relatively, turns to mutually in other words together or reverse turn-off mutually.The fourth embodiment of the present invention has been removed first guide groove 20 of preferred embodiment; By means of the dust collection efficiency of forward and backward conduit 40,42 and by second agitator 16 improve dust removal ability.Interior cylindrical surface 436 is continuous between dummy pipe 40 and rear tube 42.
As shown in figure 10, in the fifth embodiment of the present invention, component suction nozzle 528 has been reinstated guide groove 20 and the forward and backward suction catheter 40,42 as the preferred embodiment of front and the 4th embodiment description, and double stirrer 14,16.Described in detail as the front, and be centrally placed in the top of two agitators 14,16, first guide grooves 20 that formed by inner cylinder part or surface 536 produce bigger air-flows, more stable air-flow and improved from the ground with the ability of dust removal.
Give the possible mode of the power that single agitator 14 or at least two agitators 14,16 provide rotation very many.Propose first agitator 14 of the present invention or several embodiment of power are provided for first agitator 14 and second agitator 16 at this.The present invention's any power of rotation being provided for agitator (or agitator group) described below may be used to the component suction nozzle 28,228,328,428 or 528 among aforementioned any one embodiment.
As shown in figure 11, in one embodiment of the invention, express mutual pair twist spiral agitator assembly 95, wherein second agitator 99 is driven by first agitator 98.First agitator 98 drives rotation by a flat belt 97, and round first ledge of first spiral bar 96 of the outer surface of first agitator 98, with the second protuberance phase-splitting interlock of corresponding second spiral bar 96 on second agitator, 99 outer surfaces.First and second spiral bar 96 can be made with plastic material, form spiral surrounding, and radially extend on the outer surface of agitator 98,99.When first, second agitator 98,99 rotates relatively, in the rotary course, between first, second spiral bar 96 on first, second agitator 98,99, remain a continuous contact point.
As shown in figure 12, in another embodiment of the present invention, with by the applicant's United States Patent (USP) 6 all, that announce on October 17th, 2000,131, describe in detail in 238, a kind of agitator assembly 103 that is proposed comprises a belt pulley 100 that is driven by toothed timing belt 102, also is communicated with the driving shaft 104 of motor 106.Toothed timing belt 110 places between belt pulley 100, first agitator 114 and at least one driven gear 108.Toothed timing belt 110 contacts with the part of second driven gear 112 and second agitator 116 at least.Like this, when belt pulley 100 was rotated by motor 106, first and second agitators 114,116 were just driven by toothed timing belt 110, did rotation relatively.
Figure 13 also illustrates another embodiment of the present invention, and it is provided with another agitator assembly 125; Wherein motor 126 drives a worm gear 128, and worm gear 128 drives two agitators or stirrer-driven bar 135,136 according to this again.This embodiment with by the applicant all, in the United States Patent (USP) of announcing on March 7th, 1,933 1.900,889, disclosed similar.Driving or rotating mechanism offer agitator or stirrer-driven bar.Driving mechanism comprises an axle 130, and it is rotated by a belt 132, and vertical with agitator or stirrer-driven bar 135,136.Axle 130 is provided with the worm gear 128 that separates each other, the hand of spiral is opposite, these worm gears and helical gear 134 engagements, and gear 134 is positioned on the minor axis of agitator or stirrer-driven bar 135,136.
Should be noted that having the possible mode of many kinds is used for providing rotary power to the agitator or the stirrer-driven bar 135,136 of present embodiment.At first, as shown in figure 13, the center that Worm-gear assembly can be arranged on nozzle unit drives two agitators or stirrer-driven bar 135,136, perhaps also can be arranged on the end of agitator or stirrer-driven bar 135,136.If the suction nozzle in the foregoing description if Worm-gear assembly is arranged on the center of nozzle unit, then can use four little agitators.And worm gear can also only mesh with an agitator, and this agitator drives second agitator again.Can consider that also agitator is in the state that interweaves when rotated with two stirrer-driven bars 135,136 of worm gear rotation.
Below only described the present invention for example with embodiment and some other example of preferred embodiment, conversion, those of ordinary skills read foregoing description and with reference to behind the appended accompanying drawing, can do tangible correction within the scope of the invention.The scope of the invention described above and accompanying Claim will be included in the scope of the present invention all obvious corrections of being done.
Claims (18)
1. the suction nozzle of a floor cleaning apparatus is characterized in that it comprises:
Suction nozzle body with back discharge tube;
The conduit that extends to the side that at least one is communicated with described back discharge tube;
The described conduit that extends to the side is along the horizontal expansion of described body;
The described conduit that extends to the side comprises a diapire;
Described diapire forms the support lip of a suction nozzle;
The described conduit that extends to the side also comprises a pair of vertical walls;
One of described vertical walls is separated with described support lip, forms an opening that supplies air and dust to enter with described support lip, and along described conduit transmission of extending to the side;
The described conduit that extends to the side is provided to a stable substantially air velocity characteristic by along expanding gradually to the cross section of described back discharge tube from described suction nozzle body;
At least one rotating spoon;
An inner cylinder part that is positioned at described suction nozzle body interior, the part of an agitator chamber of formation; And
Guide groove that extends to the side is formed in the described inner cylinder part, along the horizontal expansion setting of described suction nozzle body, and be arranged on the top of described rotating spoon between two parties.
2. suction nozzle as claimed in claim 1 is characterized in that the described conduit that extends to the side is arranged on the front side of described suction nozzle body.
3. suction nozzle as claimed in claim 2 is characterized in that the described conduit that extends to the side that is arranged on suction nozzle body front side comprises a connected component, and this connected component is communicated with described back discharge tube fluid from described conduit extension of extending to the side.
4. suction nozzle as claimed in claim 3 is characterized in that described connected component has the constant substantially cross section that can promote the delivery air velocity.
5. suction nozzle as claimed in claim 1 is characterized in that the described conduit that extends to the side is arranged on the rear side of described suction nozzle body.
6. suction nozzle as claimed in claim 1, it is characterized in that described at least one conduit that extends to the side comprises conduit and a conduit that extends to the side that is provided with along the back of described suction nozzle body of extending to the side that a front along described suction nozzle body is provided with.
7. suction nozzle as claimed in claim 6, conduit that extends to the side that it is characterized in that described front along described suction nozzle body is provided with and the conduit that extends to the side that is provided with along the back of described suction nozzle body with described after discharge tube be communicated with.
8. suction nozzle as claimed in claim 1 is characterized in that the described guide groove that extends to the side also comprises a roof and the first and second relative sidewalls.
9. suction nozzle as claimed in claim 1 is characterized in that the cross section of the described guide groove that extends to the side is semicircle.
10. the suction nozzle of a floor cleaning apparatus is characterized in that this suction nozzle comprises:
Suction nozzle body with back discharge tube;
The conduit that extends to the side that at least one is connected with described back discharge tube;
The described conduit that extends to the side is along the horizontally set of described suction nozzle body;
The described conduit that extends to the side comprises a diapire;
Described diapire forms the support lip of a suction nozzle;
The described conduit that extends to the side also comprises a pair of vertically extending wall;
One of described vertically extending wall separates with described support lip, forms a slotted opening that enters for air and dust with described support lip and makes it to carry along the described conduit that extends to the side;
The described conduit that extends to the side forms stable on the whole air velocity along expanding gradually to described back discharge tube direction sectional area from described suction nozzle body;
At least two agitators are arranged in the described suction nozzle body;
Be arranged on an inner cylinder part of described suction nozzle body interior, it forms the part of an agitator chamber; And
A guide groove that extends to the side is formed in the described inner cylinder, and this guide groove is along the horizontal expansion of described suction nozzle body, and is arranged on the top of described at least two rotating spoons between two parties.
11. suction nozzle as claimed in claim 10 is characterized in that the described conduit that extends to the side is provided with along the front side of described suction nozzle body.
12. suction nozzle as claimed in claim 11 is characterized in that the described conduit that extends to the side in described suction nozzle front side comprises a connected component, it strides across the described conduit that extends to the side extends, and connects with described back discharge tube fluid.
13. suction nozzle as claimed in claim 12, it is characterized in that described connected component on the whole sectional area remain unchanged, to improve air velocity.
14. suction nozzle as claimed in claim 10 is characterized in that the rear side setting of the described conduit that extends to the side along described suction nozzle body.
15. suction nozzle as claimed in claim 10, the conduit that extends to the side that the conduit that extends to the side that it is characterized in that described at least one conduit that extends to the side comprises that a front side along described suction nozzle body is provided with and is provided with along the rear side of described suction nozzle body.
16. suction nozzle as claimed in claim 15, the conduit that extends to the side of conduit that extends to the side that it is characterized in that described front side along the suction nozzle body is provided with and described rear side setting along the suction nozzle body merges in described back discharge tube.
17. suction nozzle as claimed in claim 10 is characterized in that the described guide groove that extends to the side also comprises a roof, with first, second relative sidewall.
18. suction nozzle as claimed in claim 10 is characterized in that the cross section of the described groove that extends to the side is semicircle.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/044,774 | 2002-01-11 | ||
| US10/044,774 US6772475B2 (en) | 2001-02-06 | 2002-01-11 | Suction nozzle configuration |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02103481 Division CN1239120C (en) | 2002-01-11 | 2002-02-06 | Sucker structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1692868A CN1692868A (en) | 2005-11-09 |
| CN100341453C true CN100341453C (en) | 2007-10-10 |
Family
ID=27658129
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02103481 Expired - Fee Related CN1239120C (en) | 2002-01-11 | 2002-02-06 | Sucker structure |
| CNB2005100749459A Expired - Fee Related CN100341453C (en) | 2002-01-11 | 2002-02-06 | Suction nozzle configuration |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02103481 Expired - Fee Related CN1239120C (en) | 2002-01-11 | 2002-02-06 | Sucker structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN1239120C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100374063C (en) * | 2003-10-30 | 2008-03-12 | 乐金电子(天津)电器有限公司 | Rotary brush for vacuum cleaner |
| KR20120100486A (en) * | 2011-03-04 | 2012-09-12 | 주식회사 한경희생활과학 | Carpet cleaner |
| CN103961021A (en) * | 2014-05-15 | 2014-08-06 | 张卫 | Screen window dust remover |
| JP6876984B2 (en) * | 2019-08-08 | 2021-05-26 | パナソニックＩｐマネジメント株式会社 | Suction tool |
| GB2588156B (en) * | 2019-10-10 | 2022-01-05 | Dyson Technology Ltd | Cleaner head for a vacuum cleaning appliance |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4178653A (en) * | 1978-01-26 | 1979-12-18 | The Hoover Company | Improved agitator chamber |
| US4426751A (en) * | 1982-01-21 | 1984-01-24 | Whirlpool Corporation | Vacuum cleaner nozzle with double brush |
| JPH01156704A (en) * | 1987-12-14 | 1989-06-20 | Sumitomo Electric Ind Ltd | Optical connector ferrule |
| US5086539A (en) * | 1990-10-31 | 1992-02-11 | Racine Industries, Inc. | Carpet cleaning machine with pattern-oriented vacuum nozzle |
| US5513418A (en) * | 1994-06-27 | 1996-05-07 | The Hoover Company | Suction nozzle with ducting |
-
2002
- 2002-02-06 CN CN 02103481 patent/CN1239120C/en not_active Expired - Fee Related
- 2002-02-06 CN CNB2005100749459A patent/CN100341453C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4178653A (en) * | 1978-01-26 | 1979-12-18 | The Hoover Company | Improved agitator chamber |
| US4426751A (en) * | 1982-01-21 | 1984-01-24 | Whirlpool Corporation | Vacuum cleaner nozzle with double brush |
| JPH01156704A (en) * | 1987-12-14 | 1989-06-20 | Sumitomo Electric Ind Ltd | Optical connector ferrule |
| US5086539A (en) * | 1990-10-31 | 1992-02-11 | Racine Industries, Inc. | Carpet cleaning machine with pattern-oriented vacuum nozzle |
| US5513418A (en) * | 1994-06-27 | 1996-05-07 | The Hoover Company | Suction nozzle with ducting |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1692868A (en) | 2005-11-09 |
| CN1239120C (en) | 2006-02-01 |
| CN1432335A (en) | 2003-07-30 |
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