WO1996012434A1 - A device for the self-levelling and the adjustment of the pressure of the floor roller in industrial sweeping machines - Google Patents
A device for the self-levelling and the adjustment of the pressure of the floor roller in industrial sweeping machines Download PDFInfo
- Publication number
- WO1996012434A1 WO1996012434A1 PCT/IT1995/000167 IT9500167W WO9612434A1 WO 1996012434 A1 WO1996012434 A1 WO 1996012434A1 IT 9500167 W IT9500167 W IT 9500167W WO 9612434 A1 WO9612434 A1 WO 9612434A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- roller
- adjustment
- levelling
- self
- pressure
- Prior art date
Links
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
- A47L11/4052—Movement of the tools or the like perpendicular to the cleaning surface
- A47L11/4058—Movement of the tools or the like perpendicular to the cleaning surface for adjusting the height of the tool
-
- 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
- A47L11/4061—Steering means; Means for avoiding obstacles; Details related to the place where the driver is accommodated
Definitions
- a device for the self-levelling and the adjustment of the pressure of the floor roller in industrial sweeping machines is provided.
- the present invention relates to a device for the self-levelling and the adjustment of the pressure of the floor roller in industrial sweeping machines.
- Prior art industrial sweeping machines foresee the use of rotating rollers which are provided with brushes for the cleaning of floors or general wide surfaces.
- a sweeping machine includes, a frame to which is fixed the brush roller in an oscillating way about a horizontal axis in such a way that during the cleaning operations, the roller is kept in contact with the surfaces to be cleaned as a result of its own weight-force and so the roller can adapt to the surface to be cleaned and any possible irregularities of the said surfaces by oscillating about its own suspension axis.
- the aim of the present invention is to eliminate the above mentioned drawbacks by making available a device for the adjustment of the pressure exerted by the brush roller on the surfaces to be cleaned, allowing the brush roller to maintain the possibility to carry out oscillations about its own support axis so as to ensure the maximum adhesion of the roller to the structure of the surfaces to be cleaned.
- a further aim of the present invention is to allow the brush roller to be kept elastically pressed against the surface to be cleaned with an adjustable force with respect to the weight-force.
- the said aims are fully attained by the device in the present invention, as characterised in the appended claims and in particular for the fact that the device includes elastic means for controlling and adjusting the oscillation of the roller about its own oscillation axis in such a way that the brush roller carries out a determined pressure, which is normally different to that due to its own weight-force on the surfaces to be swept.
- the said elastic means are preferably constituted by a spring which is fixed at one extremity to one fixed frame of the machine, having the other extremity working on a lever which is kinematically connected, by means of transmissions, to the roller so as to vary the pressure exerted onto the surfaces to be swept.
- 1 denotes a frame, of an industrial sweeping machine, only partially shown, which supports a substantially horizontal axis 3 whose extremities are inserted into seats 4.
- the seats 4 are fixed onto a couple of opposed plate shaped flanges 5 which support a brush roller in the lower area, said brush roller being denoted with 2 as a whole.
- the brush roller 2 includes an internal drum 2a to which are fixed the proper brushes 2b, which is made to rotate by a motorisation 6 which is connected to the said internal drum 2a in a known way.
- the embodiments described above permit the brush roller 2 to oscillate about its own suspension axis 3.
- the device 7 includes a first lever 8 fixed onto the axis 3 and operated by an arm 9, of an adjustable length, which in turn is motioned by a second lever 10 splined on a pivot 20 which is held up by two supports 22 constrained to the frame 1 of the sweeper.
- an arm 10a which is fork shaped and supports a stop plate 23.
- a spring 11 having one extremity constrained to the frame of the sweeper and the other extremity is fixed to the arm 10a.
- the spring 11, with the nut 12 and the transmissions 8,9 and 10, constitute elastic means to control and adjust the oscillations of the roller 2 about the suspension axis 3.
- the roller exerts a force which is higher than that of its own weight on the surface to be cleaned it is sufficient to act on the adjusting nut 12 to ensure that the roller 2 is pressed harder against the surface to be cleaned.
- a lifting device 13 which is capable of pushing on a lever 21 after a free stroke corresponding to an adjusting stroke of the spring 11.
- the lever 21 is inserted in a neutral position on the pivot 20 and after a free stroke strikes against the stop plate 23.
- the device 13 is made of a nut screw device operated by an electric actuator 14.
- the lifting device 13 can also be made by means of a pneumatic cylinder or other suitable equivalents.
- the adjusting device 7 enables the roller 2 to be kept elastically pressed against the surface to be cleaned, during the sweeping phases, with a force which is different from its own weight-force.
Landscapes
- Cleaning In General (AREA)
- Road Paving Machines (AREA)
- Soil Working Implements (AREA)
- Harvester Elements (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE69507132T DE69507132T2 (en) | 1994-10-20 | 1995-10-13 | DEVICE FOR LEVEL ADJUSTMENT AND PRESSURE ADJUSTMENT OF A SWEEPER IN AN INDUSTRIAL SWEEPER |
EP95934820A EP0751736B1 (en) | 1994-10-20 | 1995-10-13 | A device for the self-levelling and the adjustment of the pressure of the floor roller in industrial sweeping machines |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITPR94U000019 | 1994-10-20 | ||
IT94PR000019 IT235096Y1 (en) | 1994-10-20 | 1994-10-20 | SELF-LEVELING DEVICE AND REGULATION OF THE ROLLER PRESSURE ON THE SOIL, IN INDUSTRIAL SWEEPING MACHINE |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996012434A1 true WO1996012434A1 (en) | 1996-05-02 |
Family
ID=11395882
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IT1995/000167 WO1996012434A1 (en) | 1994-10-20 | 1995-10-13 | A device for the self-levelling and the adjustment of the pressure of the floor roller in industrial sweeping machines |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0751736B1 (en) |
DE (1) | DE69507132T2 (en) |
ES (1) | ES2129232T3 (en) |
IT (1) | IT235096Y1 (en) |
WO (1) | WO1996012434A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002094075A2 (en) * | 2001-05-21 | 2002-11-28 | Tennant Company | Suspension device for floor maintenance appliance |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9999335B2 (en) | 2014-01-15 | 2018-06-19 | Tennant Company | Surface maintenance machine with a head adjustment mechanism |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4143123A1 (en) * | 1991-12-23 | 1993-07-01 | Kroll Fahrzeugbau Umwelt | Street brushing and cleaning machine - has rotary brush with extractor mouthpiece suspended from vehicle chassis by link rods and pneumatic or hydraulic rams. |
JPH0681324A (en) * | 1992-08-28 | 1994-03-22 | Howa Mach Ltd | Sweeping brush device for road surface cleaning vehicle |
JPH06128918A (en) * | 1992-10-13 | 1994-05-10 | Howa Mach Ltd | Sweping-up brush bearing device of road sweeper |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4525888A (en) * | 1983-09-09 | 1985-07-02 | Fmc Corporation | Maintaining constant pick-up broom pattern |
-
1994
- 1994-10-20 IT IT94PR000019 patent/IT235096Y1/en active IP Right Grant
-
1995
- 1995-10-13 ES ES95934820T patent/ES2129232T3/en not_active Expired - Lifetime
- 1995-10-13 WO PCT/IT1995/000167 patent/WO1996012434A1/en not_active Application Discontinuation
- 1995-10-13 DE DE69507132T patent/DE69507132T2/en not_active Expired - Fee Related
- 1995-10-13 EP EP95934820A patent/EP0751736B1/en not_active Revoked
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4143123A1 (en) * | 1991-12-23 | 1993-07-01 | Kroll Fahrzeugbau Umwelt | Street brushing and cleaning machine - has rotary brush with extractor mouthpiece suspended from vehicle chassis by link rods and pneumatic or hydraulic rams. |
JPH0681324A (en) * | 1992-08-28 | 1994-03-22 | Howa Mach Ltd | Sweeping brush device for road surface cleaning vehicle |
JPH06128918A (en) * | 1992-10-13 | 1994-05-10 | Howa Mach Ltd | Sweping-up brush bearing device of road sweeper |
Non-Patent Citations (2)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 018, no. 338 (M - 1628) 27 June 1994 (1994-06-27) * |
PATENT ABSTRACTS OF JAPAN vol. 018, no. 431 (M - 1653) 11 August 1994 (1994-08-11) * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002094075A2 (en) * | 2001-05-21 | 2002-11-28 | Tennant Company | Suspension device for floor maintenance appliance |
WO2002094075A3 (en) * | 2001-05-21 | 2003-04-17 | Tennant Co | Suspension device for floor maintenance appliance |
US6836919B2 (en) | 2001-05-21 | 2005-01-04 | Tennant Company | Suspension device for floor maintenance appliance |
Also Published As
Publication number | Publication date |
---|---|
DE69507132T2 (en) | 1999-08-05 |
EP0751736A1 (en) | 1997-01-08 |
EP0751736B1 (en) | 1999-01-07 |
ES2129232T3 (en) | 1999-06-01 |
IT235096Y1 (en) | 2000-03-31 |
DE69507132D1 (en) | 1999-02-18 |
ITPR940019U1 (en) | 1996-04-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5878237B2 (en) | Driven floor washer and method for operating a floor washer | |
US4317314A (en) | Surface finishing machine | |
CA2013194C (en) | Floor cleaning machine with improved brush pressure control | |
EP1595487A1 (en) | Floor cleaning machine, particularly for industrial applications | |
WO1995013737A1 (en) | Brush pressure system | |
KR20140026386A (en) | Sweeping vehicle having a brush disk adjuster | |
JPH03191939A (en) | Floor washer | |
US6618888B2 (en) | Dual downforce mechanism for a cleaning head of a surface conditioning vehicle | |
CA1226109A (en) | Maintaining constant pick-up broom pattern | |
EP0850010B1 (en) | Brush pressure system | |
WO1996012434A1 (en) | A device for the self-levelling and the adjustment of the pressure of the floor roller in industrial sweeping machines | |
WO2002094078A1 (en) | Suspension for a surface maintenance appliance | |
US7266861B2 (en) | Adjustable brush roller accessory for vacuum cleaner or the like | |
JP3568842B2 (en) | Brush suspension device for floor washer | |
JPS5995027A (en) | Floor cleaner | |
JPH03288571A (en) | Coating machine for floor coating agent | |
US4439883A (en) | Vehicle washing apparatus | |
JP3609343B2 (en) | roller | |
EP0462076B1 (en) | Motorised device for cleaning large surfaces | |
CN210095634U (en) | Floor wiping robot | |
ITUD990214A1 (en) | CLEANING APPLIANCE WITH ADJUSTABLE BRUSH | |
JPH04229262A (en) | Offset printing machine having intermediate roller for coupling ink device and dampening device | |
JP2572315Y2 (en) | Rotating brush lifting device | |
JPH10195836A (en) | Brush support device | |
JP2970252B2 (en) | Sweeping brush device for road cleaning vehicles |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): KR |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1995934820 Country of ref document: EP |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWP | Wipo information: published in national office |
Ref document number: 1995934820 Country of ref document: EP |
|
WWG | Wipo information: grant in national office |
Ref document number: 1995934820 Country of ref document: EP |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 1995934820 Country of ref document: EP |