US3815167A - Brushing apparatus - Google Patents

Brushing apparatus Download PDF

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Publication number
US3815167A
US3815167A US00302590A US30259072A US3815167A US 3815167 A US3815167 A US 3815167A US 00302590 A US00302590 A US 00302590A US 30259072 A US30259072 A US 30259072A US 3815167 A US3815167 A US 3815167A
Authority
US
United States
Prior art keywords
wall portions
combination
wall
dirt
trough
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.)
Expired - Lifetime
Application number
US00302590A
Other languages
English (en)
Inventor
G Leifheit
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.)
Leifheit International GmbH
Original Assignee
Leifheit International 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
Priority to BE790357D priority Critical patent/BE790357A/xx
Priority to DE2154971A priority patent/DE2154971A1/de
Priority to AT824172A priority patent/AT331450B/de
Priority to CH1436672A priority patent/CH545621A/xx
Priority to NL727213744A priority patent/NL145449B/xx
Priority to FR7237022A priority patent/FR2158237B1/fr
Priority to SE7213988A priority patent/SE380722B/xx
Priority to CA155,129A priority patent/CA984110A/en
Application filed by Leifheit International GmbH filed Critical Leifheit International GmbH
Priority to US00302590A priority patent/US3815167A/en
Priority to GB5083872A priority patent/GB1395057A/en
Priority to JP47111073A priority patent/JPS5241584B2/ja
Priority to US05/433,341 priority patent/US3938236A/en
Application granted granted Critical
Publication of US3815167A publication Critical patent/US3815167A/en
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
    • A47L11/40—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
    • A47L11/4036—Parts or details of the surface treating tools
    • A47L11/4041—Roll shaped surface treating tools
    • 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
    • A47L11/32—Carpet-sweepers
    • A47L11/33—Carpet-sweepers having means for storing dirt
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/4984—Retaining clearance for motion between assembled parts

Definitions

  • a brushing apparatus for carpets and the like has a housing one side of which faces a surface to be [30] brushed and is provided with a plurality of wall por- Nov 5 197 Germany 2l 54971 tions connected with one another by weakened hingelike zones so that these wall portions are provided in 52 us.
  • a brush extends along the trough and, when rotated in response to movement of the brushing ap- [56] References Cited paratusover the surface, picks up dirt and deposits it UNITED STATES PATENTS the trough 2,745,125 /1956 Klumb /41 R g 10 Claims, 5 Drawing Figures PATENTEDJUN I 1 I974 3815367 SHEET EU! 3 BRUSHING APPARATUS BACKGROUND OF THE INVENTION
  • the present invention relates to a brushing apparatus, and more particularly to a brushing apparatus for carpets and the like.
  • Brushing apparatus of this type here in question that is so-called sweepers, is already known.
  • Such devices have housings from the underside of which one or more rotary brushes extend so that they will contact the carpet as the sweeper is moved over the same, to pick up dirt from the carpet.
  • the dirt must be deposited somewhere once it has been picked up; consequently, the known sweepers have in their housing one or more troughs or receptacles into which the dirt is deposited by the rotating brushes.
  • a brushing apparatus particularly for carpets and the like, which includes a combination of a housing having a side facing a surface to be brushed and provided with a plurality of wall portions which are connected by flexible wall zones so as to be displaceable from an initially flat condition to an operative condition in which the wall portions constitute the bottom wall and at least one of the transverse and longitudinal walls of a dirt-collecting trough.
  • Retaining portions are provided for retaining the wall portions in operative condition, and at least one brush is joumaled in the housing laterally adjacent the trough and projecting in part from the side facing the surface to be brushed, for contactwith this surface.
  • the brushing apparatus according to the present invention, and especially the housing thereof can be produced very inexpensively and very simply, and the wall portions can be readily moved from their initially flat position to their operative position in which they define the trough.
  • the wall portion which, in the operative condition, will be the longitudinal wall portion of the trough which extends along the brush roller, is formed in flat condition with the other wall portions constitutes a significant advantage, because this greatly reduces the difficulties of producing these wall portions and of the molds required for such production, especially in view of the fact that this particular longitudinal wall portion must be inclined at an angle to the bottom wall portion of the trough in order to provide for optimum dirt-introducing results.
  • the flexible wall zones are so-called integral hinges, that is'portions of the material from which the wall portions themselves are produced, which have a substantially lesser thickness than the wall portions and can readily flex.
  • the retaining portions in the form of noses or other abutments, which engage on another when the wall portions have been displaced to operative condition.
  • the transverse walls are provided at their free edges preferably with groove-like recesses for the legs of a biasing spring which serves to maintain the pivotably arranged wall portions in their normal position, without further preventing pivoting to dirt-discharging position.
  • a biasing spring which serves to maintain the pivotably arranged wall portions in their normal position, without further preventing pivoting to dirt-discharging position.
  • the transverse walls can be retained by the springs after they have been moved to the operative condition in which they form the trough with the longitudinal walls and the bottom wall.
  • the bottom of the respective recess is of substantially saddleshaped configuration, and the legs in any pivotable position of the trough will always be properly located in the recess and prevent the transverse walls from moving out of their position.
  • This particular configuration of the saddle-shaped bottom of the recess also assures that a reversal of the direction of the bias exerted on the bottom wall by the spring will take place as the trough is pivoted from the dirt-collecting to the dirtdischarging position, so that the bottom wall will be properly biased in any position of the trough.
  • transverse walls may also be provided in the region of the pivot axis with sleeve-like projections which extend into recesses provided in the housing itself, whereby an advantageous increase of the journaling portion is achieved, and whereby further support especially in the end-position of the pivoting movement is obtained.
  • FIG. 1 is a bottomplan view of a brushing apparatus or sweeper in accordance with the present invention, such as is used for cleaning carpets, rugs, floor and the like.
  • the housing of the apparatus is designated with reference numeral 10 and journaled in this housing is a brush roller 11 which can be mounted in fixed journals or in journals which can be raised and lowered with respect to the lower open side of the housing 10.
  • auxiliary brushes 12 Associated with the brush roller 11 are cup-shaped auxiliary brushes 12 whose purpose it is to pick up dirt from the lateral region of the apparatus and to convey it inwardly into the range of pick up of the brush roller 11.
  • the brushes 12 could be omitted.
  • the auxiliary brushes 12 are also driven by additional wheels 14, and of course the configuration of the apparatus can be different from what has been illustrated without departing from the intive concept which will now be discussed.
  • FIG. 2 shows that the units 15 and 16 have transverse walls 18 at the inner side of the housing and in addition have a longitudinalwall 19 which extends along the brush roller 11.
  • the units 15 and 16 constitute troughs into which the dirt picked up by the brush roller 11 can be deposited, depending upon the direction of rotation of the brush roller either into the unit 15 or into the unit 16.
  • Each of the units 15 and 16 is .journaled on an axel 20 which in the illustrated embodiment also carries the pairs of wheels 13.
  • the axels 20 are mounted in wall portions of the housing 10, and by having the units 15 and 16 mounted on the axels 20 the units can be pivoted from the dirt-receiving illustrated to a dirtdischarging position in which dirt can be removed from them.
  • FIG. 2 shows that the units 15 and 16 engage the front or rear side of the housing, respectively, with portions of the units in such a manner that the outwardly extending portions 21 constitute engaging portions which permit their displacement from dirt-receiving to dirt-discharging position, and visa versa.
  • Springs 22' are provided which engage the transverse walls 18 of the units 15 and 16, biasing the same towards the dirtreceiving position illustrated in FIG. 2.
  • the springs engage housing portions 4; in the illustrated embodiment, a carrier 23 of the main brush roller 11.
  • the legs of the springs each contact the transverse walls of the units 15 and 16.
  • the latter units are produced of one piece each, being made in the illustrated embodiment of synthetic plastic material. They may have starting configurations such as is shown in FIGS. 3 and 4, that is they may be produced in the configurations shown in FIGS. 3 and 4.
  • the longitudinal wall portion and/or the transverse wall portion are located in a common plane, or at least substantially in a common plane, being connected by flexible wall zones 24 and 25. In FIG. 3 the longitudinal wall portion and the transverse wall portions are produced in this manner, whereas in FIG. 4 on the longitudinal wall portion is produced in this manner whereas the transverse wall portions are formed in their final position, that is extending partly from the bottom wall portion. Either configuration makes it possible to produce the units 15 and 16 with very simple molds and very inexpensively.
  • the zones 24 and 25 which separate the bottom wall portion from the longitudinal wall portion and/or the transverse wall portions, connecting it with the same, are constructed as integral hinges, that is as zones having areduced thickness and being thus flexible enough to permit a displacement of the various wall portions relative to one another to the operative position with- J out breaking or cracking.
  • This final position is illustrated in FIG. 5.
  • the longitudinal wall portion 19 is so configurated that when in erected condition it will be high enough to extend behind the pivot axis 20 so that it cannot fold back again.
  • the height of the wall portion 19 is so coordinated with the distance of the associated Zone 24 from the pivot axis or axle 20 that it will engage the latter when in erected condition.
  • the wall portion 19 is provided with a longitudinal recess 19 configurated so as to at least in part receive the axle 20.
  • the junctions between the elastically yieldable zone 24 and the associated wall portions connected by it are provided with the retaining portions or noses 26 which abut one another in the position of FIG. 5.
  • the transverse wall portions 18 may also be formed as in FIG. 4, or, if they are formed as in FIG. 3, they may be maintained in their erected position by the springs 22. For this purpose they are then provided with groove-like recesses 27 into which legs of the springs 22 engage to stabilize the position of the transverse wall portions 18. To avoid weakening of the wall portions 18 in the region of the grooves they are provided with an area 18' of greater thickness in which also outwardly extending sleeve-like projections 21 may be formed which extend into journal recesses of the housing.
  • the recesses 27 for the springs 22 are advantageously provided with a saddle-shaped bottom29 to assure for an even tight engagement of the spring legs both in the dirt-receiving position and in the dirt-discharging position of the units and 16.
  • this particular configuration of the bottom still has the additional advantage of biasing the units 15 and 16 in their pivoting plane, in such a manner that during pivoting from the dirt-receiving to the dirt-discharging position or back to the same a reversal will occur in the biasing direction, whereby the units 15 and 16 will be maintained in the respective end position (discharging or receiving) by the springs 22.
  • a combination comprising a housing having a side facing a surface to be brushed and provided with a plurality of wall portions which are connected by flexible wall zones about which they have been displaced from an initially flat condition to an operative condition in which said wall portions constitute the bottom wall and at least one of the transverse and longituv dinal walls of a dirt-collecting trough; retaining portions for retaining said wall portions in said operative condition; and at least one brush journalled in said housing laterally adjacent said trough and projecting in part from said side for contact with a surface to be brushed.
  • said retaining portions including abutments in the region of the respective wall portions, which engage one another in abutting relationship when said wall portions are in said operative position.
  • said wall por tions including said transverse wall portions, and the latter being provided with recesses accommodating a biasing spring.
  • transverse walls having thickened portions provided'with said recesses and with journals for pivotally joumalling said trough for movement between a dirt-collecting and a dirt-discharging position.
  • said housing having sidewalls provided with recesses and wherein said wall portions include the transverse walls of said trough; and further comprising projections on outwardly facing sides of said transverse walls and each received in one of said recesses.

Landscapes

  • Cleaning In General (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
  • Brushes (AREA)
US00302590A 1971-11-05 1972-10-31 Brushing apparatus Expired - Lifetime US3815167A (en)

Priority Applications (12)

Application Number Priority Date Filing Date Title
BE790357D BE790357A (fr) 1971-11-05 Balai mecanique, en particulier balai mecanique pour tapis
DE2154971A DE2154971A1 (de) 1971-11-05 1971-11-05 Kehrgeraet, insbesondere teppichkehrgeraet
AT824172A AT331450B (de) 1971-11-05 1972-09-25 Kehrgerat, insbesondere teppichkehrgerat
CH1436672A CH545621A (enrdf_load_stackoverflow) 1971-11-05 1972-10-02
NL727213744A NL145449B (nl) 1971-11-05 1972-10-11 Veeginrichting.
FR7237022A FR2158237B1 (enrdf_load_stackoverflow) 1971-11-05 1972-10-19
SE7213988A SE380722B (sv) 1971-11-05 1972-10-30 Sopapparat, spec. mattsopapparat
CA155,129A CA984110A (en) 1971-11-05 1972-10-30 Brushing apparatus
US00302590A US3815167A (en) 1971-11-05 1972-10-31 Brushing apparatus
GB5083872A GB1395057A (en) 1971-11-05 1972-11-03 Sweeping appliance
JP47111073A JPS5241584B2 (enrdf_load_stackoverflow) 1971-11-05 1972-11-06
US05/433,341 US3938236A (en) 1971-11-05 1974-01-17 Method of manufacturing brushing apparatus

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE2154971A DE2154971A1 (de) 1971-11-05 1971-11-05 Kehrgeraet, insbesondere teppichkehrgeraet
US00302590A US3815167A (en) 1971-11-05 1972-10-31 Brushing apparatus
US05/433,341 US3938236A (en) 1971-11-05 1974-01-17 Method of manufacturing brushing apparatus

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US05/433,341 Division US3938236A (en) 1971-11-05 1974-01-17 Method of manufacturing brushing apparatus

Publications (1)

Publication Number Publication Date
US3815167A true US3815167A (en) 1974-06-11

Family

ID=27183809

Family Applications (2)

Application Number Title Priority Date Filing Date
US00302590A Expired - Lifetime US3815167A (en) 1971-11-05 1972-10-31 Brushing apparatus
US05/433,341 Expired - Lifetime US3938236A (en) 1971-11-05 1974-01-17 Method of manufacturing brushing apparatus

Family Applications After (1)

Application Number Title Priority Date Filing Date
US05/433,341 Expired - Lifetime US3938236A (en) 1971-11-05 1974-01-17 Method of manufacturing brushing apparatus

Country Status (11)

Country Link
US (2) US3815167A (enrdf_load_stackoverflow)
JP (1) JPS5241584B2 (enrdf_load_stackoverflow)
AT (1) AT331450B (enrdf_load_stackoverflow)
BE (1) BE790357A (enrdf_load_stackoverflow)
CA (1) CA984110A (enrdf_load_stackoverflow)
CH (1) CH545621A (enrdf_load_stackoverflow)
DE (1) DE2154971A1 (enrdf_load_stackoverflow)
FR (1) FR2158237B1 (enrdf_load_stackoverflow)
GB (1) GB1395057A (enrdf_load_stackoverflow)
NL (1) NL145449B (enrdf_load_stackoverflow)
SE (1) SE380722B (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8726441B1 (en) * 2009-09-28 2014-05-20 Bissell Homecare, Inc. Floor sweeper with split brush assembly

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2600102B2 (de) * 1976-01-02 1981-04-02 Leifheit International Günter Leifheit GmbH, 5408 Nassau Kehrmaschine, insbesondere Teppichkehrmaschine
US4124913A (en) * 1977-06-29 1978-11-14 Bissell, Inc. Floor sweeper with unitary frame

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2745125A (en) * 1952-09-03 1956-05-15 Modern Carpet Sweeper Co Inc Carpet sweeper
US2975449A (en) * 1957-11-21 1961-03-21 Bissell Inc Carpet sweepers
US3629892A (en) * 1969-05-26 1971-12-28 Brush Co Ltd Carpet sweeper
US3665540A (en) * 1969-11-15 1972-05-30 Leifheit International Sweeper

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US688189A (en) * 1900-06-21 1901-12-03 Francis C Mason Sweeping-machine.
FR337104A (fr) * 1903-11-10 1904-03-30 Abner Crossman Perfectionnements apportés aux appareils pour nettoyer les tapis
US1614683A (en) * 1921-03-08 1927-01-18 Bissell Carpet Sweeper Co Carpet sweeper
US2068943A (en) * 1934-12-19 1937-01-26 Callan Earl Carpet sweeper dustpan
US2380634A (en) * 1943-07-28 1945-07-31 Paul J Daniels Carpet sweeper
US2611913A (en) * 1948-07-02 1952-09-30 Adolph P Buquor Carpet sweeper with disposable dust receptacle
DE1243856B (de) * 1963-03-18 1967-07-06 Arbogast Freiherr Roeder Von D Verfahren zum Herstellen kantiger Formkoerper aus Folien oder Platten aus thermoplastischem Kunststoff und Folie oder Platte zur Durchfuehrung dieses Verfahrens
US3454694A (en) * 1966-03-03 1969-07-08 Eastman Kodak Co Method of forming plastic book backs
US3509613A (en) * 1968-02-14 1970-05-05 Whirlpool Co Method of forming an air conditioner louver structure

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2745125A (en) * 1952-09-03 1956-05-15 Modern Carpet Sweeper Co Inc Carpet sweeper
US2975449A (en) * 1957-11-21 1961-03-21 Bissell Inc Carpet sweepers
US3629892A (en) * 1969-05-26 1971-12-28 Brush Co Ltd Carpet sweeper
US3665540A (en) * 1969-11-15 1972-05-30 Leifheit International Sweeper

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8726441B1 (en) * 2009-09-28 2014-05-20 Bissell Homecare, Inc. Floor sweeper with split brush assembly

Also Published As

Publication number Publication date
FR2158237A1 (enrdf_load_stackoverflow) 1973-06-15
FR2158237B1 (enrdf_load_stackoverflow) 1976-01-30
JPS5241584B2 (enrdf_load_stackoverflow) 1977-10-19
DE2154971A1 (de) 1973-05-10
GB1395057A (en) 1975-05-21
ATA824172A (de) 1975-11-15
AT331450B (de) 1976-08-25
US3938236A (en) 1976-02-17
BE790357A (fr) 1973-02-15
SE380722B (sv) 1975-11-17
NL7213744A (enrdf_load_stackoverflow) 1973-05-08
JPS4872970A (enrdf_load_stackoverflow) 1973-10-02
CA984110A (en) 1976-02-24
CH545621A (enrdf_load_stackoverflow) 1974-02-15
NL145449B (nl) 1975-04-15

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