CN1267050C

CN1267050C - Sweeper

Info

Publication number: CN1267050C
Application number: CN02805972.7A
Authority: CN
Inventors: 拉尔夫·迪尔; 雅各布·扬岑; 马丁·施密德加尔
Original assignee: Alfred Kaercher SE and Co KG
Current assignee: Alfred Kahn Europe GmbH & Co. kg
Priority date: 2001-03-07
Filing date: 2002-02-28
Publication date: 2006-08-02
Anticipated expiration: 2022-02-28
Also published as: EP1367929B1; AU2002251034A1; ATE304312T1; WO2002069775A2; WO2002069775A3; DE50204255D1; EP1367929A2; DE10110906A1; CN1494393A

Abstract

The invention relates to a sweeper for cleaning carpets and hard floors, comprising a housing, a dirt collector having a dirt inlet, and a driven rotary brush disposed adjacent to the dirt inlet. The rotary brush is associated with a sweeping sill on the dirt inlet, via which sweeping sill dirt particles are transported to the dirt collector. The aim of the invention is to improve the sweeper in such a manner that its forward movement is not impeded by the sweeping sill. To this end, the sweeping sill is mounted on the housing in such a manner that it can be adjusted in a direction towards the floor area to be cleaned.

Description

Sweeper

Technical field

The present invention relates to a kind of sweeper that is used for carpet and hardstand cleaning, it comprises a housing, one has the dirt collector of dirt inlet, an and brush roll that is arranged on the other rotatable driving of dirt inlet, wherein the brush roll in the dirt porch sets a cleaning rib, and dirt particle can be sent into the dirt collector by it.

Background technology

This class sweeper both can clean carpet, also can clean hardstand.Here dirt particle can by brush roll catch and by the cleaning rib be thrown into the dirt collector.Here clean rib and should occupy, make to prevent to be thrown under the cleaning rib by the dirt particle that brush roll is caught from the as far as possible little distance in ground to be cleaned.Yet there is such danger in cleaning during high pile carpet, promptly cleans rib and carpet is killed.Sweeper is hindered when advancing.

Summary of the invention

The objective of the invention is, improve such sweeper in this wise, make and avoid because the cleaning rib hinders the forward travel of sweeper.

Sweeper for the said type of beginning solves by such method according to this purpose of the present invention, promptly cleans rib (Kehr kante) and is fixed on the housing along ground to be cleaned direction adjustablely.The cleaning rib is equipped with an executing agency, so that at housing cleaning rib and ground separation one minimum range ground are located; Wherein, executing agency has mechanical contact member, and they contacts with ground during less than minimum range between cleaning rib and ground, make and clean rib and ground maintenance certain distance.Thereby can adjust cleaning rib distance overhead, thereby can correspondingly be positioned at and prevent to clean rib on the carpet reliably and for example carpet is killed by clean rib.

The cleaning rib is fixed on the housing adjustablely, this makes the cleaning rib is provided with movingly with respect to brush roll (B ü rstenwalze), though thereby brush roll sinks to carpet slightly when the cleaning carpet, cleans rib and then is lifted away from carpet fiber.

Set an executing agency preferably for the cleaning rib, be positioned at overhead minimum distance so that will clean rib during near ground at housing.By means of executing agency cleaning rib can with state of ground irrespectively, that is to say no matter be during at the softer carpet of cleaning or at the cleaning hardstand, keep a minimum range with ground.

If executing agency has the mechanical type contact element, it contacts and make with ground during less than minimum range between cleaning rib and ground cleans overhead certain distance of rib, and this is favourable.Minimum range preferably is about 0.3 to 0.7mm, particularly is about 0.5mm.

But contact element for example can be made the contact wheel of free rotary ground supporting on the cleaning rib.Set in a kind of particularly preferred form of implementation, contact element is made the guide plate that slides less than the ground, situation lower edge of the minimum range between cleaning rib and the ground.At this moment particularly can set, sweeper make can walk and comprise driving wheel and/or supporting rollern, wherein guide plate is fixed on driving wheel and/or supporting rollern and the circumference area that ground contacts with respect to ground to be cleaned.This makes, guide plate built on stilts certain distance when the cleaning hardstand, but when the cleaning carpet, then slide along carpet, and driving wheel and/or supporting rollern since the weight of sweeper sink in the carpet slightly.

For securing cleaning rib adjustably can adopt a guide rail, the cleaning rib is fixed on this guide rail movably.Select and/or additionally can set as another kind, the gyroaxis revolution that the cleaning rib can be arranged around a rotating shaft that is parallel to brush roll.Clean rib for this reason and can be fixed at least one revoliving arm that supports pivotally, revoliving arm preferably is hinged on and makes on the rigid housing.

Especially on revoliving arm, fix above-mentioned mechanical contact member.If contact element and revoliving arm fuse, be favourable so.If to have a sliding surface that contacts with ground less than the minimum range between cleaning rib and the ground time be favourable to revoliving arm in addition.

If the sliding surface of revoliving arm protrudes in cleaning rib, advantageous particularly so towards the ground direction.The projection of sliding surface guarantees, even the cleaning rib keeps certain distance with ground when the cleaning carpet because sliding surface slides on carpet, cleaning rib edge towards the direction on ground with respect to the sliding surface retraction.

Set in sweeper of the present invention a kind of special can be born the structure of mechanical load, sweeper has two revoliving arms of supporting pivotally, and the cleaning rib is fixed on its free end.If two revoliving arms are arranged on outside the dirt inlet here, for example the dirt inlet is arranged between the revoliving arm, is favourable.Select the position of revoliving arm to make like this, the dirt inlet has the geometry that is not subjected to the revoliving arm position influence, so the shape of dirt inlet and the location independent of revoliving arm.

For cleaning rib distance is overhead remained unchanged as far as possible, if the cleaning rib towards the ground direction by means of a spring element elasticity pretension, be favourable, the cleaning rib can overcome the effect edge of elastic-restoring force towards the adjustment of sweeper housing direction when this structure, and guarantee that at this moment the cleaning rib occupies definite position with respect to housing when removing external force.

For example can adopt leaf spring or helical spring as spring element.If spring element by rubber type of material, is especially made by elastomer, prove particularly advantageous.

Spring element preferably is fixed on the dirt collector, collector preferably and housing be rigidly connected.

Set in a kind of particularly preferred form of implementation, spring element forms a flexible seals that is arranged between cleaning rib and the dirt collector.This makes the dirt collector can engage on dust seal ground in fixing adjustably cleaning rib zone.Here can set, seal forms at least one seal lip, and it can be fitted on the wall of dirt collector.

In order to improve the cleaning effect of sweeper, be favourable by suction channel with the suction turbine that dirt collector and the circulation of dirt inlet are connected if sweeper is made the suction sweeper and had one for this reason.Can produce suction airstream by means of the suction turbine, it supports dirt particle to be delivered in the dirt collector from the dirt inlet.If a dirt filter is installed in suction channel, and forming the dirt collector at the suction channel of dirt filter upstream here, is favourable so.This makes sweeper can have special compact structure, because not necessarily need independent dirt collector again.

It is contemplated that, sweeper is made and can be travelled, wherein the dirt inlet towards ground to be cleaned is arranged on and follows in the front area of sailing the direction scavenging machine, and the suction turbine is fixed in the back-end region with respect to the travel direction sweeper, the suction channel substantial horizontal is arranged, and the inlet of suction inlet and suction turbine is connected.Suction channel can comprise the fixture that is used for fixing the dirt filter, makes to constitute the dirt collector in the suction channel district of fixture and the extension of dirt filter upstream.

If suction channel comprises that one is fixed on the base plate on the housing with removably connecting, the cleaning rib is fixed on this base plate, is favourable.This base plate makes can be near suction channel, to change dirt filter and emptying dirt collector in some cases.

On the flexible ground of cleaning, particularly during carpet, sweeper is because ground is sunk in deadweight slightly.This causes brush roll and frictional ground force to strengthen, and therefore rotates needed driving force in order to keep same cleaning effect must add ambassador's brush roll.The driving of brush roll can be carried out by means of motor, but wherein motor preferably can be connected on the power supply of a recharge.In order to limit the particularly power consumption of motor when cleaning carpet,, be useful if brush roll is controllable in ground thrust to be cleaned.If brush roll is fixed on the housing in the direction towards ground so adjustablely, wherein the adjustment of brush roll position is irrelevant mutually with the adjustment of cleaning rib position, proves favourable so.This provides such possibility, cleaning roller-keep a minimum range as mentioned above-overhead, and brush roll can sink to carpet slightly, so that when the cleaning carpet, reach better cleaning effect.

Brush roll can be for example be fixed on the housing movably by means of tilting or being parallel to the director element that plumb line arranges.

If the brush roll on the revolution link can be bearing on the housing pivotally around a gyroaxis that is parallel to brush roll rotating shaft layout, then advantageous particularly.Here for the ease of the assembling of sweeper,,, be favourable with supporting brush roll drive motors and power supply if the revolution link comprises a drive unit housing.This makes the brush roll drive unit can be contained in advance in the drive unit housing, then is installed on the sweeper housing with preferably removably connecting.

For fear of at the softer ground floor of cleaning, particularly during long wool hair carpet, surpass prescribed depth ground and sink to carpet layer, if comprising, the revolution link can be placed on ground guide plate, so that brush roll keeps the position of stipulating with respect to ground, be favourable.Here when the travelled structure of sweeper, if the guide plate of revolution link remains on the driving wheel and/or bogie wheel of sweeper with respect to ground to be cleaned, make the guide plate of revolution link certain distance overhead when the cleaning hardstand, but when the cleaning carpet,, be favourable because sinking to along carpet of driving wheel and/or bogie wheel slided.

Set in a kind of particularly preferred form of implementation, sweeper is designed to walk certainly.Sweeper can comprise a walking mechanism for this reason, it preferably and housing be made of one, rotatably mounted at least two driving wheels on housing, they can be by means of at least one drive motors driving.

Description of drawings

Below to the introduction of a kind of preferred implementing form of the present invention in conjunction with the accompanying drawings with elaborating.

In the accompanying drawing:

Fig. 1: a signal longitudinal section of sweeper;

Fig. 2 a: perspective illustration of sweeper base plate;

Fig. 3: by the base plate of Fig. 2 side view together with the brush roll of loading onto;

Fig. 4: brush roll is together with the diagrammatic side view of the brush roll driver element that sets;

Fig. 5: the diagrammatic side view of sweeper front area.

The specific embodiment

One sweeper of totally representing with Reference numeral 10 of walking certainly is shown in the drawings, it has the housing 12 of a formation walking mechanism that is made of plastics, can be on the housing from rotatably mounted two driving wheels 14 of method known, that therefore only schematically illustrate, they can drive by means of a common electrically driven rotation.

Can load onto a top cover on housing 12, it constitutes a dust cover, in order to see to such an extent that it does not draw in the drawings for the purpose of clearer.

Housing surrounds suction channel 16 and comprises a parent plate (Tragplatte) 20, it is parallel to ground 18 and arranges, travel direction 21 along sweeper 10 on it connects a step 22, parent plate 20 fuses by this step and support plate 23, connects 18 end wall 24 earthward on one day on support plate.Housing 12 is comprising a base plate 26 from parent plate 20 a distance, and it particularly is illustrated in Fig. 2 and 3, and drives in the wrong direction and to sail direction 21 and be connected on the end plate 28.

At its Background Region inner housing 12 supportings one suction turbine 30 with a turbine housing 31, this housing 31 comprises a lower house 32 and a upper shell 33, and a turbine 34 and turbine drive motors 35 are installed.Turbine 34 can drive by means of turbine drive motors 35, generation favours rotatablely moving of turbine arbor 36 that plumb line arranges around one, adjacent generation one input connection 37 with turbine on lower house 32, suction turbine 30 is connected with suction channel 16 circulations by it.

Base plate 26 is removably regularly on end wall 24 and parent plate 20.For this reason on base plate 26, as particularly by Fig. 2 finding, generate a latch hole (Rastaufnahme) 39, it and the kayser hook (not shown) acting in conjunction that matches that fuses with end wall 24, follow the back-end region inner bottom plating 26 of sailing direction 21 at it and carry the kayser hook 40 that protrudes upward, match same unillustrated latch hole acting in conjunction among the figure on it and the parent plate 20.

Base plate 26 is determined dirt inlet 42 below support plate 23, it surrounds by being parallel to

longitudinal wall

43,44 that travel direction 21 arranges and the front and back cross wall of arranging perpendicular to travel direction 21 45 and 46.

The

guide wall

47 and 48 that is connected the side of arranging at longitudinal wall 43 with 44 superinverse travel directions 21 up.

Follow and sail direction 21 and cleaned rib 50 stretch in the dirt inlet 42 before rear cross wall 46, it is free end is being located at

guide plate

52 and 53 on

longitudinal wall

43 and 44 from the side external stability of dirt inlet 42 on.

Guide plate

52,53 constitutes the single-revolution arm respectively, and it is being hinged on the height of preceding cross wall 45 on the revolution tenon axle 55 that extends laterally, and can turn round around a gyroaxis 56 of arranging perpendicular to travel direction 21.As particularly as seen from Figure 3,

guide plate

52,53 is 18 direction arc-shaped bends towards ground, and 18 bottom surface constitutes a sliding surface 57 towards ground with it.

Except that

guide plate

52 and 53 cleaning rib 50 by one occupy base plate 26 whole width, resilient elastomeric seal 59 is hinged on the base plate 26, wherein 59 pairs of cleanings of elastomeric seal rib 50 applies elastic reset power, if it is pressed in the dirt inlet 52.Elastomer seal body 59 forms a seal lip 60 respectively in it is fitted in the lateral end district of

guide wall

47 and 48, they guarantee dust seal ground joint in the zone of suction channel 16 between base plate 18 and cleaning rib 50.

Enter the mouth with dirt in

suction channel

16 and 42 adjacently by the rotating shaft 62 of arranging perpendicular to travel direction 21 brush roll 63 is set, it draws in Fig. 4 greatly simplifiedly.

Brush roll 63 comprises radially-protruding cleaning brush 64, and they pass dirt inlet 42, and dirt particle taken up from ground 18 and is thrown into suction channel 16 above cleaning rib 50.Here dirt receives the support that is subjected to by the suction airstream of suction turbine 30 generations.

Comprise that in order to drive brush roll 63 sweepers 10 one is arranged on the driver element 66 on the support plate 23, it particularly is illustrated in the Figure 4 and 5.Driver element 66 comprises that one makes columniform transmission case 67 basically, but it installs the battery 69 of a drive motors 68 and recharge.On drive unit housing 67, generate the

fixed arm

70,71 that stretches out downwards in end face one side, they surround support plate 23 from the side, and at its free end upper support brush roll 63, it by known, therefore unillustrated in the drawings transmission device is connected with drive motors 68, transmission device is fixed on the fixed arm 70

The lever arm 73 that driver element 66 fuses by the free end with

fixed arm

70 and 71 is fixing, and the axle sleeve 74 that lever arm generates by one with its free end is hinged on side direction and is created on the axle journal 75 on the housing 12.Here axle journal 75 determines one perpendicular to travel direction 21 and be parallel to gyroaxis 76 (see figure 5)s that brush roll 63 is arranged.

The fixed arm 70 that drive unit housing 67 becomes with the end face adnation and 71 and be fixed on lever arm 73 above it in conjunction with constituting a revolution link 78 that is used for supporting pivotally brush roll 63.

By Fig. 5 finding, guide plate 80 is created on fixed

arm

70 and 71 on the free end on ground 18 as particularly.

But with the dirt 43 adjacent free rotary ground supporting supporting

rollerns

82,83 that enter the mouth, sweeper 10 can be bearing on the ground to be cleaned 18 with them on base plate 26.

Can 18 absorb dirt from ground by means of brush roll 63 with by passing through of producing of suction turbine 30 suction airstream that arrow 85 schematically illustrates as mentioned above, and be sent in the suction channel 16.Suction channel is installed a dirt filter 87, and suction channel 16 is arranged in the zone formation dirt collector 89 of dirt filter 87 upstreams.

If by means of sweeper 10 cleaning hardstands, driver element 66 is bearing on the support plate 23 by a unillustrated in the drawings compression spring so, at this moment guide plate 80 does not contact with ground 18.Clean rib 50

guide plates

52 and 53 fixed thereon in this case and occupy the overhead position of 18 certain distances.If but by means of the relatively gentleer ground 18, particularly carpet of sweeper 10 cleanings, so at this moment driving wheel 14 and supporting

rollern

82 and 83 sink to ground 18 to be cleaned, as shown in Figure 3.This impels guide plate 52 to contact with ground 18 with 53 sliding surface 57, at this moment cleans the elastic force that rib 50 overcomes elastomeric seal 59 and is pressed in the suction channel 16, therefore keeps with a certain distance from ground 18 to be cleaned.The guide plate 80 of revolution link 78 also contacts with ground 18 when the cleaning carpet, at this moment turning round the gravity that link 78 overcomes driver element 66 upwards lifts so high, make the cleaning brush 64 of brush roll 63, as schematically illustrating among Fig. 3, just clamp-on slightly in the ground 18 to be cleaned, though make to brush carpet basically, avoid the drive motors 68 unallowed too high power consumptions of brush roll 63.

Claims

1. the sweeper that is used for the cleaning of carpet and hardstand, comprise a housing, a dirt collector, this dirt collector has dirt inlet, and described sweeper comprises that one is arranged near the brush roll of the rotatable driving of dirt inlet, wherein brush roll is equipped with a cleaning rib in the dirt porch, dirt particle can clean rib by this and send in the dirt collector, and cleaning rib (50) is fixed on the housing (12) along the direction towards ground to be cleaned (18) adjustablely; It is characterized by: cleaning rib (50) is equipped with an executing agency (52,53), so that make cleaning rib (50) and ground (18) location, minimum range ground at interval during near ground (18) at housing (12); Wherein, executing agency has mechanical contact member (52,53), and they contacts with ground (18) during less than minimum range between cleaning rib (50) and ground (18), make and clean rib (50) and ground (18) maintenance certain distance.

2. by the sweeper of claim 1, it is characterized by: the guide plate (52,53) of (18) slip when contact element is made between cleaning rib (50) and ground (18) less than minimum range along ground.

3. by the sweeper of claim 1 or 2, it is characterized by: cleaning rib (50) can turn round around the gyroaxis (56) that a rotating shaft (62) that is parallel to brush roll (63) is arranged.

4. by the sweeper of claim 3, it is characterized by: cleaning rib (50) is fixed at least one and is bearing in pivotally on the guide plate (52,53) on the housing (12).

5. by the sweeper of claim 4, it is characterized by: guide plate (52,53) has a sliding surface (57) that contacts with ground (18) during less than minimum range between cleaning rib (50) and ground (18).

6. by the sweeper of claim 5, it is characterized by: sliding surface (57) is in that the direction of (18) protrudes in cleaning rib (50) towards ground.

7. by the sweeper of claim 4, it is characterized by: sweeper (10) has two guide plates (52,53) of supporting pivotally, and cleaning rib (50) is fixed on the free end of guide plate.

8. by the sweeper of claim 7, it is characterized by: two guide plates (52,53) are arranged on outside the dirt inlet (42).

9. by the sweeper of claim 1, it is characterized by: cleaning rib (50) is by means of a spring element (59) (18) direction elasticity pretension earthward.

10. by the sweeper of claim 9, it is characterized by: spring element (59) is made by rubber type of material.

11. by the sweeper of claim 9, it is characterized by: spring element (59) is fixed on the dirt collector (89).

12. the sweeper by claim 9 is characterized by: spring element forms a flexible seals (59) that is arranged between cleaning rib (50) and the dirt collector (89).

13. by the sweeper of claim 1, it is characterized by: sweeper (10) has one by a suction channel (16) and dirt collector (89) and the dirt suction turbine (30) that (42) circulate and be connected that enters the mouth.

14. the sweeper by claim 13 is characterized by: establish a dirt filter (87) in suction channel (16), the suction channel (16) in dirt filter (87) upstream constitutes dirt collector (89).

15. by the sweeper of claim 13, it is characterized by: housing (12) comprises a base plate of fixing (26) with removably connecting, cleaning rib (50) is fixed on this base plate, and this base plate makes it possible near suction channel (16).

16. the sweeper by claim 1 is characterized by: brush roll (63) is fixed on the housing (12) adjustably along the direction towards ground (18), and wherein the adjustment of brush roll (63) position is irrelevant mutually with the adjustment of cleaning rib (50) position.

17. sweeper by claim 16, it is characterized by: sweeper comprises single-revolution link (78), this revolution link can be fixed on the housing (12) pivotally around a gyroaxis (76) that is parallel to brush roll (63) rotating shaft (62) layout, and brush roll (63) is fixed on this revolution link.

18. the sweeper by claim 17 is characterized by: revolution link (78) comprises a transmission case (67), in order to a brush roll drive motors (68) and a power supply (69) to be installed.

19. the sweeper by claim 17 is characterized by: revolution link (78) comprises the guide plate (80) that can be put on the ground (18), so that brush roll (63) keeps the position of a regulation with respect to ground (18).

20. the sweeper by claim 17 is characterized by: revolution link (78) is fixed on the housing (12) with removably connecting.

21. by the sweeper of claim 1, it is characterized by: sweeper (10) becomes from walking.

22. by the sweeper of claim 10, it is characterized by: spring element (59) is made by elastomer.