EP0321592A1 - Balayeuse à main - Google Patents

Balayeuse à main Download PDF

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Publication number
EP0321592A1
EP0321592A1 EP87118653A EP87118653A EP0321592A1 EP 0321592 A1 EP0321592 A1 EP 0321592A1 EP 87118653 A EP87118653 A EP 87118653A EP 87118653 A EP87118653 A EP 87118653A EP 0321592 A1 EP0321592 A1 EP 0321592A1
Authority
EP
European Patent Office
Prior art keywords
filter housing
sweeper
opening
dirt container
inlet opening
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.)
Granted
Application number
EP87118653A
Other languages
German (de)
English (en)
Other versions
EP0321592B1 (fr
Inventor
Heinz Dipl.-Ing. Holsten
Joachim Bahnemann
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.)
Hako Werke GmbH and Co
Hako GmbH
Original Assignee
Hako Werke GmbH and Co
Hako GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hako Werke GmbH and Co, Hako GmbH filed Critical Hako Werke GmbH and Co
Priority to EP87118653A priority Critical patent/EP0321592B1/fr
Priority to DE8787118653T priority patent/DE3779649D1/de
Priority to US07/285,042 priority patent/US4974283A/en
Publication of EP0321592A1 publication Critical patent/EP0321592A1/fr
Application granted granted Critical
Publication of EP0321592B1 publication Critical patent/EP0321592B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/24—Floor-sweeping machines, motor-driven
    • 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
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4013—Contaminants collecting devices, i.e. hoppers, tanks or the like
    • 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
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4027—Filtering or separating contaminants or debris
    • 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
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4027—Filtering or separating contaminants or debris
    • A47L11/4033—Means for cleaning filters
    • 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
    • A47L9/20—Means for cleaning filters
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
    • E01H1/08—Pneumatically dislodging or taking-up undesirable matter or small objects; Drying by heat only or by streams of gas; Cleaning by projecting abrasive particles
    • E01H1/0827—Dislodging by suction; Mechanical dislodging-cleaning apparatus with independent or dependent exhaust, e.g. dislodging-sweeping machines with independent suction nozzles ; Mechanical loosening devices working under vacuum
    • E01H1/0854—Apparatus in which the mechanically dislodged dirt is partially sucked-off, e.g. dislodging- sweeping apparatus with dirt collector in brush housing or dirt container

Definitions

  • the invention relates to a hand-held sweeper with a rotatingly driven sweeper roller held in a machine frame and a dirt container detachably arranged on the machine frame for receiving the dirt thrown up by the sweeper and with a filter housing which can be pivoted between a lowered and a raised position and whose inlet opening is above an upper opening area of the dirt container and the outlet opening is arranged adjacent to an air sucking fan through the filter housing and is based on the normal direction of travel of the sweeper on the rear side of the filter housing.
  • the filter housing is pivotally supported on the machine frame about an axis provided on its rear side and can be aligned with a central opening from the lowered position in which its inlet opening is sealed against its lateral surroundings , which is located in the upper wall of the dirt container, can be pivoted into the raised position in which the inlet opening of the filter housing lies so far above the dirt container that it is for Emptying can be tilted or, if necessary, lifted out of the machine frame for emptying.
  • This known sweeper is on the one hand relatively complex because it needs a vibrator for loosening fine dust from the filter, and on the other hand there is the difficulty that when moving the filter housing from the lowered position and into the raised position from its inlet opening dirt can fall out, which then contaminates the environment and parts of the sweeper.
  • a hand-held sweeper of the type mentioned is designed according to the invention such that the filter housing is movable about a pivot axis provided on its front side, the distance from the center of the inlet opening of the filter housing is smaller than from the center of its outlet opening, and that the outlet opening of the filter housing in its lowered position connects the interior of the filter housing with the suction opening of the blower and in the raised position is at least with a portion at a distance from the outlet opening of the blower, so that a shunt opening is formed for the blower.
  • the filter housing can thus be pivoted about an axis which is not, as in the known sweeper, on the rear side of the filter housing, but on its front side and at a smaller distance from the inlet opening than from the outlet opening. Therefore, the distance between the pivot axis and the inlet opening of the filter housing is significantly smaller than in the known sweeper, in which the pivot axis for the filter housing is arranged on its rear side and above the outlet opening.
  • This smaller distance which can be, for example, half to two thirds of the distance of the axis from the outlet opening, means that the inlet opening moves only slightly forwards when the filter housing is moved from the lowered position, that is to say essentially unchanged above the upper opening area of the dirt container remains, so that even in the raised position it is ensured that dirt from the filter housing always falls into the dirt container.
  • a relatively slight pivoting of the filter housing already results in a gap between the outlet opening of the filter housing and the suction opening of the fan, through which the fan sucks air from the environment, i.e. the air flow generated by the fan through the filter housing is interrupted even with a slight movement of the filter housing in the direction of the raised position.
  • Such an interruption in the air flow through the filter housing is particularly expedient if damp dirt is to be picked up with the sweeper, since this prevents damp dirt particles through the intake air flow into the filter located in the filter housing. Furthermore, such an interruption of the air flow is expedient if the sweeper is to pick up light granules, for example made of polystyrene, which are sucked in by an air flow through the filter housing and block it, so that the machine then switches off automatically.
  • the design of the sweeper according to the invention also makes a separate vibrating device for the filter unnecessary, since the user by shaking the filter housing, i.e. can move fine dust from the filter by moving between the lowered and the raised position, which then falls directly through the inlet opening of the filter housing into the dirt container, because the inlet opening is always directly above the upper opening area of the dirt container in all positions of the filter housing.
  • the special type of mounting and pivoting of the filter housing on the one hand enables the filter to be shaken off without the use of a special vibrating device, the shaken off dirt falling directly into the dirt container, and on the other hand allows the structure to be simply pivoted into the filter housing raised position an interruption of the air flow through this, the inlet opening of the filter housing is still above the dirt container and dirt that may come loose from the filter can fall into the dirt container.
  • the edge region of the outlet opening of the filter housing lies in the lowered position on a sealing surface surrounding the suction opening of the blower, so that in this position practically the entire flow is sucked in Air must pass through the filter housing without forming a significant "shunt" to the environment in the area of the outlet opening of the filter housing.
  • the inlet opening of the filter housing is immediately above the upper opening area of the dirt container, it is only slightly removed from this area during the movement of the filter housing from the lowered to the raised position, i.e. the inlet opening of the filter housing is in any position in such a position that dirt falling out of the filter housing gets directly into the dirt container.
  • a tab-shaped sealing arrangement surrounding the inlet opening can be fastened to a wall area surrounding the inlet opening, which sealing arrangement in all positions of the Filter housing rests with its outer circumference surrounding the upper opening area of the dirt container used on its top wall.
  • the filter housing In order to hold the filter housing in operation in the lowered position in spite of vibrations, so that there are no "shunts" to the surrounding column between its outlet opening and the suction opening of the filter housing, the filter housing can be moved against the spring force from the lowered position to the raised position be, a tension spring can engage on the rear side of the filter housing, and the rear side of the filter housing can rest in the lowered position on a support provided on the machine housing.
  • the filter housing is always pulled into the lowered position, thus preventing the formation of "shunts" in the connection area between the outlet opening of the filter housing and the suction opening of the fan in the lowered position of the filter housing.
  • An actuating device for pivoting the filter housing can engage on the rear side of the filter housing, and so that the user can carry out this pivoting very easily and simply during operation, the actuating element of the actuating unit can be arranged on the rearward-extending guide rail of the sweeper.
  • the sweeper shown has a machine frame 1 to which the wheels 5 and 6 are fastened in a manner which is not shown, and on which there is a drive in a housing 3, for example an electric motor driven by a battery or an internal combustion engine.
  • a rearward-extending spar 2 is fastened, with the aid of which the operator guides the machine.
  • a dirt container 9 which is open towards the rear and which is arranged in its rear upper region by means of slats 13 (spaced apart from one another from above and below) Figure 2) forms an upper opening area.
  • a sweeping roller 31 which is covered to the rear and up and to the side by a housing part 32 and which is in operation Sweeper is driven so that it rotates, as indicated by the arrows in Figures 3 and 4, clockwise and throws dirt from the floor 40 through the rear opening, not shown, into the dirt container 9.
  • a structure of the sweeper can also be selected, in which the sweeper throws the dirt from the floor over its upper peripheral region (overhead) into the dirt container.
  • a filter housing 15 is held between the upper opening area of the dirt container 9, i.e. the area having the fins 13, and a blower housing 25 accommodated further above in the machine housing 1, the inlet opening 18 (FIGS. 3 and 4) of which is located directly above the upper opening area of the Dirt container 9 is located and its outlet opening 17 ( Figure 4) is in the position according to Figures 2, 3 and 6 in flow communication with the existing in the blower housing 25 inlet opening 16 of the blower 26, so that during operation of the blower 26 of this air through the inlet opening 18 is sucked out of the filter housing 15 into the filter housing 15 and thus through the filter 16 indicated in FIGS. 2 to 4 and 6 and through the outlet opening 17.
  • the sweeper is guided by the user on the spar 2 and driven via the wheels 5 in FIGS. 3, 4 and 6 from right to left over the floor 40, the brush roller 31 consisting of a brush, as already mentioned, moving clockwise and thus rotates against the direction of travel.
  • the broom plate 8 held on an arm 7 can optionally also be brought into engagement with the floor to be cleaned and rotated accordingly. If this bite plate is not required, the arm 7 is manually moved upward about the axis 14 by the user pivoted so that the bite plate 8 is above the dirt container 9 and in the area of the cover 4, which covers the filter housing 15 and which is either detachable or articulated at its upper rear end in a manner not shown and can thus be pivoted into a raised position.
  • the filter housing 15 is attached to a support frame 20 which is pivotally mounted about an axis 23 by means of screws on the supports 19 provided on the machine frame 1, which are arranged on the side supports 1 'and extend upward over the dirt container 9.
  • the pivot axis 23 is thus also at the front end region of the sweeper and therefore at the front of the filter housing 15 and at a height approximately halfway between the inlet opening 18 and the lower edge of the outlet opening 17 of the filter housing 15.
  • the distance of the pivot axis 23 from the center the inlet opening 18 is significantly less than from the center of the outlet opening 17, namely only slightly more than half.
  • the support frame 20 rests in the positions according to FIGS.
  • the tension spring 22 engages with its upper end on a tab 50 which is fastened to the holding frame 20 or on the filter housing 15, and is attached with its lower end to the machine frame 1.
  • the inlet opening 18 of the filter housing 15 is surrounded by a flange frame 42 (FIG. 5) which consists of two frame halves compressed by means of screws 43, between which a circumferential, tab-shaped sealing arrangement 24, for example made of rubber or flexible plastic, is clamped.
  • This circumferential sealing arrangement 24 lies when the dirt container 9 is inserted with its outer region in every position of the filter housing 15 on the upper wall 9 'of the dirt container 9 and thus surrounds the upper opening region of the dirt container 9 in a sealing manner. It should be mentioned that this sealing position cannot be seen in FIG. 4 because of the simplified illustration, but is shown in FIG. 5.
  • the filter housing 15 consists, in the manner indicated in FIGS. 3 to 5, of a lower and an upper part which are detachably connected to one another in a manner not to be described in detail and between which the box-shaped filter 16 is held.
  • One end 51 of an actuating device 28 engages on the tab 50 fastened on the carrier frame 1 or on the filter housing 15, the other end 52 of which is connected to an actuating lever 29.
  • the actuating device 28 can be, for example, a Bowden cable or a linkage.
  • the actuating lever 29 is pivotally attached about a pivot point 29 'to a support plate 53 fastened to the guide bar 2, only indicated in FIG. 5, and extends through a guide slot 54 which is formed in a cross strut 32 which is attached to the guide bar 2 above the support plate 53 and on which the actuating element 30 for the main switch and the lever 31 for reversing the direction of travel are also attached (FIG. 2).
  • the end 52 of the actuating device 28 is between the carrier plate 53 and the cross strut 32 on the actuating lever 29 attached.
  • the filter housing 15 rests on the support strut 21, so that the inlet opening 18 of the filter housing 15 is in its lowest position and its outlet opening 18 with its edge region seals against the wall 27 'Is applied and so is in flow connection with the suction opening 27 of the blower 26. If the sweeper is used in this position of the filter housing 15, the blower 26 generates an air flow through the dirt container 9, the inlet opening 18 of the filter housing 15, the filter 16 and the outlet opening 17 of the filter housing 15 into the blower 26, whereby the sweeper roller 31 whirled up fine dust is deposited in the filter 16.
  • the actuating lever 29 is pivoted by the user along the guide slot 54 from the position according to FIG. 2 to the position according to FIG. 5, in which it moves into a locking section of the guide slot 54 engages.
  • the filter housing 15 If the user wants to operate the sweeper again with an intake air flow through the filter housing 15, he moves the actuating lever 29 out of the locking section of the guide slot 54, and the filter housing 15 returns by its own weight and supported by the force of the spring 22 in the position according to Figures 3 and 6 back, in which the outlet opening 17 of the filter housing 15 sealing against the suction opening 27 of the blower 26 surrounding wall 27 '. During this movement, the filter housing 15 also takes the actuating lever 29 with it and moves it into the position according to FIG. 2.
  • the filter housing 15 is pivoted back and forth about the axis 23 accordingly.
  • the support frame 20 or the filter housing 15 strikes the support strut 21, there is a strong vibration, through which dirt is released from the filter 16 and through the inlet opening 18 into the Dirt container 9 falls.
  • the sealing arrangement 24 Since in the back and forth pivoting of the filter housing 15, the sealing arrangement 24 always rests around the upper opening area surrounding the top wall 9 'of the dirt container 9, no dirt, in particular no fine dust which is released from the filter 16, occurs in the area between the inlet opening 18 of the filter housing 15 and the upper opening area of the dirt container 9.
  • the forwardly inclined slats 13 guide the falling dirt away from the rear opening of the dirt container 9 in the upper opening region of the dirt container 9, so that the risk of dirt escaping is also reduced at this point.
  • the dirt container 9 is held between the two forwardly extending side carriers 1 'of the frame 1, and it can be removed from the front of the sweeper and reinserted into the sweeper from the front.
  • 9 mounting projections 11 and 12 are formed on each side wall of the dirt container, which, in the inserted state, consist of guides 35, 36 attached to rails and attached to the side supports 1 '.
  • the rear projection 12 rests on a rear guide section 35, which runs essentially parallel to the floor 40 and thus to the standing plane of the machine, the rear end of which has an upwardly angled section 38, which is another Insertion movement of the dirt container 9 prevented beyond the position shown.
  • the front projection 11 rests on a projection surface 37 which is formed in the region of the front section 36 of the guide, the front section 36 of the guide running obliquely forwards and downwards and ending at a point which is a smaller distance from the standing plane of the machine than the distance of the bottom
  • the projections 11 and 12 side from the bottom wall of the dirt container 9.
  • the projection surface 37 is, as can be seen, just before the transition from the front section 36 to the rear section 35 of the guide, the distance of the projection surface 37 from the beginning of the rear section 35 is larger than the diameter of the projection 11.
  • the dirt container 9 rests in the inserted state with its lateral projections 11 and 12 on the sections 35 and 36 of the rails forming the guide, the projection 12 being located at the rear end of section 35 is located, while the projection 11 rests in the region of the front section 36 on the projection surface 37, so that the dirt container 9 cannot move downwards or forwards automatically.
  • the user pivots the arm 7 with the bite plate 8 upwards. Then he grips the handle 10 ( Figure 2) at the front end of the dirt container 9 and lifts the dirt container 9 slightly so that the projection 11 comes from the area of the projection surface 37 of the section 36 of the guide and can then be pulled out by the user to the front , wherein the projection 12 slides on the section 35 and then also on the section 36 without its displacement movement being hindered by the projection surface 37, since the projection 12, as shown, has a significantly larger dimension than the projection surface 37 and rounded peripheral surfaces, so that it can slide over the projection surface 37.
  • the filter housing 15 With this removal movement, the filter housing 15 is usually in the lowered position according to FIGS. 3 and 6, and the dirt container simply slides under the area of the inlet opening 18 of the filter housing 15, the tab-shaped sealing arrangement 24 slipping over the top wall 9 'of the dirt container 9.
  • the removed dirt container 9 can then be emptied in the usual way.
  • the user In order to reinsert the dirt container 9, the user only needs to place it on the floor with its base surface in front of the receiving area of the sweeper and then move the sweeper towards the dirt container 9. During this merging movement, the projection 12 engages with the front section 36 of the guide and slides up this guide, whereupon the projection 11 also comes into engagement with the front end region of the section 36 of the guide and slides thereon until the projection 11 overlaps the projection surface 37 slips and so the dirt container 9 is "locked" in the inserted position shown in FIG. 6.
  • the dirt container moves backwards and upwards in the machine and is thus guided against the sealing arrangement 24, which then surrounds its upper opening area in the manner described when the dirt container 9 is inserted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Cleaning Of Streets, Tracks, Or Beaches (AREA)
EP87118653A 1987-12-16 1987-12-16 Balayeuse à main Expired - Lifetime EP0321592B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP87118653A EP0321592B1 (fr) 1987-12-16 1987-12-16 Balayeuse à main
DE8787118653T DE3779649D1 (de) 1987-12-16 1987-12-16 Handgefuehrte kehrmaschine.
US07/285,042 US4974283A (en) 1987-12-16 1988-12-15 Hand-guided sweeping machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP87118653A EP0321592B1 (fr) 1987-12-16 1987-12-16 Balayeuse à main

Publications (2)

Publication Number Publication Date
EP0321592A1 true EP0321592A1 (fr) 1989-06-28
EP0321592B1 EP0321592B1 (fr) 1992-06-03

Family

ID=8197519

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87118653A Expired - Lifetime EP0321592B1 (fr) 1987-12-16 1987-12-16 Balayeuse à main

Country Status (3)

Country Link
US (1) US4974283A (fr)
EP (1) EP0321592B1 (fr)
DE (1) DE3779649D1 (fr)

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DE102007025763B3 (de) * 2007-05-23 2009-01-22 Alfred Kärcher Gmbh & Co. Kg Kehrsaugmaschine
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US9848750B1 (en) 2015-06-30 2017-12-26 Eric Watkins Manually-operated floor sweeper
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Citations (2)

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EP0321592B1 (fr) 1992-06-03
DE3779649D1 (de) 1992-07-09
US4974283A (en) 1990-12-04

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