US3154802A - Floor polisher - Google Patents

Floor polisher Download PDF

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Publication number
US3154802A
US3154802A US254736A US25473663A US3154802A US 3154802 A US3154802 A US 3154802A US 254736 A US254736 A US 254736A US 25473663 A US25473663 A US 25473663A US 3154802 A US3154802 A US 3154802A
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US
United States
Prior art keywords
head
handle
polisher
spring
disc
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
US254736A
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English (en)
Inventor
Hanschitz Rudolf
Taft Wilhelm
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.)
Electrostar GmbH
Original Assignee
Electrostar 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 Electrostar GmbH filed Critical Electrostar GmbH
Application granted granted Critical
Publication of US3154802A publication Critical patent/US3154802A/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
    • A47L11/4013—Contaminants collecting devices, i.e. hoppers, tanks or the like
    • A47L11/4016—Contaminants collecting devices, i.e. hoppers, tanks or the like specially adapted for collecting fluids
    • 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
    • A47L11/4075—Handles; levers

Definitions

  • This invention relates in general to appliances, and in particular to a new and useful single disc floor polisher which is driven by an electric motor having a polish-er head in which e disc is rotatable and having a handling stick or handle connected thereto by a pivotal connection arranged such that the forward end of the polisher is urged downwardly with a substantially equal force regardless of the position of the handle in relation to the head.
  • a polisher which includes a single rotating disc arranges for rotation within the polisher head which is manipulated by means of a handle articulated thereto and wherein the tendency to migration is substantially eliminated. This is achieved by incorporating a connection between the handle and the head which includes spring means to bias the forward portion of the head downwardly against the door at all times.
  • the handling stick is articulated to the polisher head at an upper portion thereof adjacent one end and is mounted for pivotal movement about a substantially horizontal axis to permit elevating and lowering of the handle in relation to the head.
  • the inventive construction includes a spring element connected between the handle and a stationary portion of the polisher head which is arranged to bias the head downwardly in all positions of the handle in reiaticn to the head.
  • the arrangement is such that the downward biasing force of the front portion of the head is always approximately the same in the various pivot positions of the handling stick. This is caused by the changes of the side of a lever am through which the force of the spring acts. This change in lever arm compensates for the change in the spring force due to the change in compression thereof caused by the change of handle position.
  • a coil spring is advanta eously connected between a stationary portion of the head at the forward end thereof and a pivotal arcuate portion of the handle, so that the lever arm which is the perpendicular from the axis of the spring to the center of rotation of the handle will change due to the pivotal movement of the handle.
  • a further object of the invention is to provide an appliance which includes a polisher head in which there is rotatably mounted a single disc element and a handle pivotally connected to said head at one end thereof and including spring means engaged between said handle and said head effectively biasing the forward portion of the head downwardly independently of the position of the handle relative to the head.
  • a further object of the invention is to provide a polisher which includes a head having a disc element rotatably mounted therein and which includes a handle having a driving electric motor which is pivotally connected to the head for rotation in respect to the head about a substantially horizontal axis, and spring means connected between the handle and a stationary portion of the head urging the forward portion of the head downwardly with substantially an even force during all pivotal orientations of the handle in respect to the head.
  • a further object of the invention is to provide a polisher which includes a handle connected to a head portion in which is rotatable a single disc element characterized by means which tend to lessen the tendency of the head to migrate laterally.
  • a further object of the invention is to provide a polisher which is simple in design, rugged in construction and economical to manufacture.
  • FIG. 1 is a somewhat schematic top plan view of a polisher constructed in accordance with the invention.
  • FIG. 2 is an enlarged fragmentary transverse section of a polisher indicated in FIG. 1.
  • the invention embodied therein includes a polisher which comprises a polisher head or housing '7 in which is rotatably mounted a disc 8 for rotation about a substantially vertical axis.
  • the disc as indicated, is revolved in a clockwise direction, as indicated by the arrow in PEG. 1.
  • a handle or handling stick 4 is connected to the polisher head 7 by means of a pivot or axle 9 disposed substantially horizontally, thus permitting the handling stick 4 to be raised and lowered in respect to the head.
  • T he handling stick 4 carries a housing it? in which is positioned a driving electric motor (not shown) having a flexible shaft (not shown) which extends through the connection of the handle 4 with the head 7 for driving me disc 8.
  • the shaft (not shown) upon which the disc is affixed, is rotated by means of bevel gearing which is connected through the flexible shaft to the electric motor (all not shown) in the housing A.
  • the weight of the handle l and the housing 16 is such that the handle is loaded eccentrically iri respect to its articulation on the axis d When the disk 3 rotates in the direction indicated by the arrow, that is clockwise, there is a tendency for the polisher to migrate in the direction of the arrow 6.
  • the disc 3 which contains the brushes is rotatably mounted on a stationary portion 2a? which is secured such as through mounting brackets 22 to the head
  • the upper portion of one end of the housing is curved in order to abut against a similarly curved portion of the lover conical portion and includes a spherical or curved end portion 11:: which fits into the curved upper end of the head 7.
  • the extension piece 11 is pivoted on the horizontal axis and the head is slotted, as at 15, to permit pivotal up and down movement about the ards 9 of the handle 4.
  • the electric driving motor and its flexible shaft are mounted so that the flexible shaft extends through the hollow connecting piece generally designated 11 into the interior of the polisher head or housing 7 for connection to the vertical axle of the polisher disc 8 through suitable gearing such as a worm gear (not shown).
  • a spring such as 'a coil spring 13 (which may be either a tension or compression spring depending on the location of its connections to motor 29 end connection piece 11), is connected at one end to a bolt element 12 on a fixed portion of the polisher head '7 and is connected at its opposite end to a fixed point or pin 14 formed as an extension of the curved portion 11a of the extension piece 11.
  • the spring 13 engages at a lever arm a represented by the solid line extending perpendicular to the longitudinal direction of the spring 13.
  • the corresponding medium line of the handle or stick 4 is indicated in FIG. 2 by the solid line b.
  • the spring 13 is a tension spring.
  • the arrangement is such that the spring 15. causes the forward end of the polisher head 7, that is the end opposite the connection to the handle 4, to be urged downwardly in the direction marked by the arrow '15.
  • the connection of the spring 13 is such that the polisher'disc S is always urged against thefioor with an equal force at the front and back ends thereof, so that the two oppositely directed reaction forces compensate each other and no lateral movement in the direction of the arrow 6 in FIG. 1 can occur.
  • pivot axis 9 is formed of' While a specific embodiment of the invention has been shown and described in detail to illustrate the application of the inventive principles, it will be understood that the invention may be embodied otherwise without departing from such principles.
  • a floor polisher comprising a head, a single polisher disc mounted for rotation about a substantially vertical axis within said head, a handle pivotally connected to said head for lifting and lowering movement about a substantially horizontal axis, and spring means connected between said handle and said head adjacent the pivotal connection of said handle to said head urging said head downwardly with a uniform force independently of the ivoting of said handle in respect to said head.
  • a floor polisher including a connecting piece with a curved end portion, said s ring means including a spring connected to a stationary portion of said head at the forward end thereof and connected to the curved end portion of said handle, the distance from the pivot axis of said handle to the connection of said spring to said handle defining an elfective lever arm, the connection of said spring to said handle being such that the force of said spring is changed by changing the spring length during pivotal movement of said handle along with the eliective lever arm from said spring to the center of pivotal movement of said handle, the change of the spring length and the effective lever arm being such that the effective force acting downwardly on the forward portion of said head remains. substantially unchanged.
  • a floor polisher comprising a floor polisher head, a single disc rotatable within said head about an axis which is substantially vertical, said head having a curved portion adjacent one end thereof and which is slotted to receive a handle, a handle having a motor housing thereon pivotally connected to said head for pivotalmovement about an axis which is substantially horizontal, said motor housing being curved complementary to the curved portion of said head and havinga cylindrical recess portion adapted to receive a connecting piece, a connecting piece held in said cylindrical recess portion of said motor housing and including a curved portion extending into said head and being slidably movable within the curved portion of said head, said connecting piece being pivoted within said head about the horizontal axis of pivotal movement of said handle, the curved portion being radially spaced from the pivotal axis of rotation of said handle, a coil spring connected to a fixed portion of the forward end of said head opposite fronrthe'connection to said handle and connected, at its opposite end, to the curved portion of said
  • a floor polisher comprising a polisher head, a
  • a handle pivotally conrtected to said headIsaid handle including a motor housing portion, said motor housing portion having an opening at one end, aconnecting piece extending through said being pivotally connected to said head for articulation y of said handle in respect to saidhead, and a spring connected to the forward end or" said head and to the curved of said spring and the effective lever arm produces a portion of said connecting piece, said connecting piece uniform downward effective force at the connection of curved portion being spaced from its pivotal connection said spring to said head.
  • the effective UNITED STATES PATENTS lever arrn being changeable in length in accordance With the orientation of said handle with said head and said ig g g spring eing changed correspondingly, the construction 55 1 3 1958 and arrangement being such that the change in length 10 O ar e 1

Landscapes

  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
US254736A 1962-01-30 1963-01-29 Floor polisher Expired - Lifetime US3154802A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEE0022311 1962-01-30

Publications (1)

Publication Number Publication Date
US3154802A true US3154802A (en) 1964-11-03

Family

ID=7070763

Family Applications (1)

Application Number Title Priority Date Filing Date
US254736A Expired - Lifetime US3154802A (en) 1962-01-30 1963-01-29 Floor polisher

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US (1) US3154802A (enrdf_load_html_response)
GB (1) GB1015032A (enrdf_load_html_response)
NL (1) NL288169A (enrdf_load_html_response)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4654918A (en) * 1985-11-18 1987-04-07 Jerald T. Allcock Buffer deck assembly and surface maintenance apparatus
US4658459A (en) * 1986-01-27 1987-04-21 Advance Machine Company Floor polishing machine
US5353471A (en) * 1991-12-17 1994-10-11 Vorwerk & Co. Interholding Gmbh Apparatus for performing work on a floor surface
US5674120A (en) * 1996-09-30 1997-10-07 Advance Machine Company Floor polishing machine
US20030192573A1 (en) * 2002-04-16 2003-10-16 Loi Tran Floor care machine with counter acting force
US20060005348A1 (en) * 2004-07-09 2006-01-12 Tacony Corporation Vacuum cleaner counter-balance mechanism

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1937765A (en) * 1930-10-15 1933-12-05 Quadrex Corp Vacuum cleaner
US2113475A (en) * 1935-06-04 1938-04-05 Faber Ernst Polishing machine
US2822566A (en) * 1953-09-28 1958-02-11 Westinghouse Electric Corp Handle lock for suction cleaner apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1937765A (en) * 1930-10-15 1933-12-05 Quadrex Corp Vacuum cleaner
US2113475A (en) * 1935-06-04 1938-04-05 Faber Ernst Polishing machine
US2822566A (en) * 1953-09-28 1958-02-11 Westinghouse Electric Corp Handle lock for suction cleaner apparatus

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4654918A (en) * 1985-11-18 1987-04-07 Jerald T. Allcock Buffer deck assembly and surface maintenance apparatus
US4658459A (en) * 1986-01-27 1987-04-21 Advance Machine Company Floor polishing machine
US5353471A (en) * 1991-12-17 1994-10-11 Vorwerk & Co. Interholding Gmbh Apparatus for performing work on a floor surface
US5674120A (en) * 1996-09-30 1997-10-07 Advance Machine Company Floor polishing machine
US20030192573A1 (en) * 2002-04-16 2003-10-16 Loi Tran Floor care machine with counter acting force
US20060005348A1 (en) * 2004-07-09 2006-01-12 Tacony Corporation Vacuum cleaner counter-balance mechanism
US7310855B2 (en) 2004-07-09 2007-12-25 Tacony Corporation Vacuum cleaner counter-balance mechanism

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Publication number Publication date
GB1015032A (en) 1965-12-31
NL288169A (enrdf_load_html_response)

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