EP1740774A1 - Verfahren zur positionierung einer kehrwalze sowie kehrmaschine zu dessen durchführung - Google Patents
Verfahren zur positionierung einer kehrwalze sowie kehrmaschine zu dessen durchführungInfo
- Publication number
- EP1740774A1 EP1740774A1 EP05737020A EP05737020A EP1740774A1 EP 1740774 A1 EP1740774 A1 EP 1740774A1 EP 05737020 A EP05737020 A EP 05737020A EP 05737020 A EP05737020 A EP 05737020A EP 1740774 A1 EP1740774 A1 EP 1740774A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- roller
- sweeper
- sweeping roller
- working position
- sweeping
- 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
Links
Classifications
-
- 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
- E01H1/02—Brushing apparatus, e.g. with auxiliary instruments for mechanically loosening dirt
- E01H1/05—Brushing apparatus, e.g. with auxiliary instruments for mechanically loosening dirt with driven brushes
- E01H1/056—Brushing apparatus, e.g. with auxiliary instruments for mechanically loosening dirt with driven brushes having horizontal axes
Definitions
- the invention relates to a method for positioning at least one broom roller of a mobile sweeper, in which the broom roller is rotated by means of a rotary drive and optionally in a rest position, in which the broom roller is arranged at a distance from a floor surface, and a first and a second working position can be, wherein the axis of rotation of the rotating roller in the first working position takes a predetermined distance from the floor surface and wherein the sweeping roller sits on the floor surface in the second working position.
- the invention also relates to a mobile sweeper for carrying out the method, with at least one sweeping roller rotatable about an axis of rotation, which can be set in rotation by means of a rotary drive, and optionally in a rest position in which the sweeping roller is arranged at a distance from a floor surface, and a first and a second working position can be positioned, the axis of rotation of the sweeping roller being at a predetermined distance from the floor surface in the first working position and the sweeping roller being seated on the floor surface in the second working position.
- the sweeping roller occupies an optimal position relative to the floor surface to be cleaned.
- the first working position is characterized by a predetermined distance between the axis of rotation of the sweeping roller and the floor surface.
- the sweeping roller takes a preferably predeterminable and selectable a constant position during sweeping.
- Such positioning is advantageous when cleaning a flat floor surface, since premature wear of the sweeping roller can be avoided by choosing the position of the sweeping roller relative to the floor surface so that on the one hand a very good cleaning result is achieved, but on the other hand the Wear of the roller brush is kept as low as possible.
- the roller brush takes up its first working position, uneven floor surfaces can only be cleaned unsatisfactorily, since deep-lying dirt is in many cases not captured by the roller brush. In many cases, dirt that sticks to the floor surface can only be removed insufficiently in the first working position.
- the user therefore selects the second working position for the sweeping roller, in which the sweeping roller is preferably kept freely swinging and in which it sits on the floor surface. It therefore follows unevenness in the floor and can react flexibly to the requirements of the floor surface to be swept. However, the sweeping operation in the second working position results in increased wear, since the sweeper roller sits on the floor surface with a considerable weight.
- the user can specify the position of the sweeping roller by actuating an operating element. In many cases, the selected second working position is maintained even if this would not be absolutely necessary to achieve an optimal cleaning result.
- the object of the present invention is to further develop the method mentioned at the outset and the sweeper mentioned at the outset such that under Ensuring a good cleaning result prevents premature wear of the roller brush.
- This object is achieved according to the invention in a method of the type mentioned at the outset in that the sweeping roller is only positioned in its second working position after the rotary drive has started when the user has actuated an operating element for changing the position of the sweeping roller.
- Such an embodiment has the advantage that the user must deliberately specify the second working position, if this is desired by him, so when the sweeping operation starts, the sweeping roller does not automatically go into the second working position. It is thereby avoided that the second working position, which the user has deliberately specified for cleaning an uneven floor surface, for example, is inadvertently assumed automatically even in a later sweeping operation.
- the sweeping roller is automatically positioned in the first working position when the rotary drive starts, from which it can only be moved into its second working position if the user issues a corresponding control command.
- a separate control command to take the first working position can be omitted.
- the sweeping roller when the rotary drive stops, the sweeping roller is automatically positioned in its rest position, from which it can be transferred to a working position when the rotary drive is started again. If there is no special control command from the operator, the sweeping roller automatically assumes its first working position at the beginning of a new sweeping operation.
- the above-mentioned object is achieved according to the invention in that the sweeping roller can only be positioned in its second working position after the rotary drive has started, if the user has actuated an operating element for changing the position of the sweeping roller.
- the sweeping roller can only be positioned in its second working position after the rotary drive has started, if the user has actuated an operating element for changing the position of the sweeping roller.
- the sweeping roller can preferably be automatically positioned in its first working position when the rotary drive starts. This has the advantage that at the start of a sweeping operation the user only has to activate the rotary drive of the sweeping roller, while it is not necessary to additionally actuate the operating element for changing the position of the sweeping roller. Rather, the sweeper roller automatically assumes its first working position.
- the sweeping roller can be automatically positioned in its rest position when the rotary drive stops.
- the user after the end of a sweeping operation, the user only has to switch off the rotary drive of the sweeping roller, which then automatically assumes its rest position, in which it is arranged at a distance from the floor surface.
- the sweeper has a drive motor for locomotion of the sweeper, wherein the sweeper roller can be automatically positioned in its rest position when the drive motor stops.
- wear on the sweeping roller is kept particularly low since it is reliably positioned at a distance from the floor surface when the sweeper is taken out of operation. This position is automatically assumed by the sweeping roller without it being necessary to operate the operating element to change the position of the sweeping roller.
- the sweeping roller is rotatably mounted on at least one lowerable and liftable support arm, wherein a lowering movement of the support arm can be limited by means of an adjustable holding part.
- the holding part By using the holding part, it can be ensured in a structurally simple manner that the sweeping roller does not inadvertently assume its second working position when the rotary drive starts, but rather a corresponding lowering movement of the support arm supporting the sweeping roller can be limited by means of the holding part.
- the holding part can be displaced to such an extent that it no longer engages in the range of motion of the support arm and consequently does not restrict its lowering movement.
- the support arm can be moved by means of the holding part.
- the holding part forms a drive element for the support arm, so that it can be raised and lowered by means of the holding part.
- the support arm can be pivoted by means of the holding part about a pivot axis aligned parallel to the axis of rotation of the sweeping roller. It can be provided that the sweeper has two support arms which hold the sweeping roller between them and which are each pivotable by means of a holding part.
- the support arm preferably sits on the holding part in the rest position and the first working position of the sweeping roller. This has the advantage that the holding part only restricts a lowering movement of the support arm, while lifting the support arm is readily possible even in the first working position of the sweeping roller. This ensures that the sweeping roller can deflect upwards at any time if an obstacle occurs.
- the holding part is pivotally mounted and cooperates with an adjusting device for pivoting the holding part.
- the holding part is preferably pivotable about a pivot axis aligned coaxially to the pivot axis of the support arms. It can be provided, for example, that the holding part is designed as a two-armed lever, the free end of a first lever arm of the holding part being able to be placed against the support arm and the free end of the second holding arm cooperating with the adjusting device.
- the adjusting device has at least one hydraulic and / or pneumatic piston-cylinder unit.
- at least one gas hydraulic unit can be used, which can be acted upon by hydraulic fluid to move the holding part against the effect of a pressurized gas filling.
- the adjusting device preferably comprises two single-acting hydraulic and / or pneumatic piston-cylinder units. This enables a particularly simple control of the adjusting device by first actuating a first single-acting piston-cylinder unit to transfer the sweeping roller from its rest position into its first working position, and the second can be used to transfer the sweeping roller from its first working position to its second working position single-acting piston-cylinder unit can be operated.
- Figure 1 is a schematic side view of a mobile sweeper according to the invention.
- Figure 2 is a schematic representation of an adjusting device for changing the position of a sweeping roller of the sweeper, the sweeping roller assuming its rest position;
- Figure 3 is a schematic representation corresponding to Figure 2, wherein the sweeping roller assumes its first working position
- Figure 4 a schematic representation corresponding to Figure 2, wherein the sweeping roller assumes its second working position.
- a mobile sweeper is shown schematically, which is denoted overall by the reference numeral 10. It has a frame 12 which carries a driver's seat 14. In front of the driver's seat, a steering wheel 16 is arranged, which is inclined forward, ie. H. Handlebar 20 extending obliquely to the direction of travel 18 of the sweeper 10 is connected to the frame 12 and to a steerable front wheel 22. The front wheel can be driven by a drive motor 23 to move the sweeper 10.
- the frame 12 In its rear area, the frame 12 is held by two rear wheels 24. Between the front wheel 22 and the rear wheels 24, a sweeping roller 30 is arranged on the frame 12, which can be rotated about an axis of rotation 28 oriented transversely to the direction of travel 18 and which are rotated by means of a motor 31 which is known per se and is therefore only shown schematically in the drawing can.
- a plate brush 36 which can be rotated about a vertical axis of rotation 34 is held on a bearing arm 32.
- a bottom surface 38 can be swept by means of the sweeping roller 30 and the plate brush 36.
- the sweeping roller 30 and the plate brush 36 can each be set in rotation about their respective axis of rotation 28 and 34 and lowered onto the floor surface 38 to be cleaned and raised again from the floor surface 38 after the sweeping operation has taken place.
- the sweeping roller 30 can optionally be positioned in a first working position or a second working position during the sweeping operation.
- the first working position is shown in Figure 3.
- the axis of rotation 28 of the sweeping roller 30 is at a predetermined distance from the floor surface 38, i. H. In this position the sweeper roller does not follow any unevenness in the floor.
- the sweeping roller 30 sits on the floor surface 38 and therefore follows any unevenness.
- the wear of the sweeping roller 30 during the sweeping operation is considerably greater in the second working position than in the first working position, and a very good cleaning result can be achieved in many cases even when the sweeping roller 30 is positioned in its first working position.
- the sweeping roller 30 is held on the frame 12 in an oscillating manner by means of two support arms 40, which are each arranged on an end face of the sweeping roller 30 and accommodate the sweeping roller 30 between them.
- the sweeping roller 30 is rotatably mounted on the support arms 40 and the support arms 40 are arranged around a common same pivot axis 42 pivotable, which is aligned parallel to the axis of rotation 28 of the sweeping roller 30.
- Each support arm 40 is assigned a holding part in the form of a two-armed lever 44 which, like the associated support arm, can be pivoted about the pivot axis 42 and has a first lever arm 45 and a second lever arm 46.
- the first lever arm 45 extends from the pivot axis 42 laterally next to the support arm 40 to its lower edge 48, which faces the bottom surface 38 and which, in the rest position and the first working position of the sweeping roller 30, protrude laterally from the first lever arm 45 and Collar 50 is integrally connected to the first lever arm 45, as shown in FIGS. 2 and 3.
- the second lever arm 46 points in the direction facing away from the first lever arm 45.
- a piston rod 54 is articulated with its free end to the free end of the second lever arm 46 and cooperates with a cylinder 55 of a first piston-cylinder unit 56.
- a second piston-cylinder unit 58 with a cylinder 59 and a piston rod 60 is arranged to the side of the first piston-cylinder unit 56.
- the two piston-cylinder units 56 and 58 are each designed as gas hydraulic units and are mechanical via a rocker 62 coupled with each other.
- the rocker 62 can be pivoted about a pivot axis 63 aligned parallel to the pivot axis 42.
- a cylinder 55 or 59 of the two piston-cylinder units 56, 58 is articulated to the free ends of the rocker 62.
- the free end of the piston rod 60 of the second piston-cylinder unit 58 is articulated to a support 65 which is mechanically connected to the frame 12.
- the two cylinders 55 and 59 each have a connecting piece 67 and 68, via which working spaces 69 and 70 of the piston-cylinder units 56, 58 can be filled with hydraulic fluid under pressure.
- the connecting pieces 67 and 68 are in flow connection via hydraulic lines 72 and 73 with a valve block 75 which forms a control unit of the sweeper 10 and to which a hydraulic pump 77 which supplies hydraulic fluid is connected.
- the valve block 75 can be controlled by the user of the sweeper 10 by means of a button 80 arranged next to the steering wheel, which is connected to the valve block 75 via a control line 81.
- the button 80 represents an operating element with the aid of which a change in the position of the sweeping roller 30 can be brought about.
- the user can start the motor 31 of the sweeping roller 30.
- This has the consequence that the sweeping roller 30 is automatically transferred into its first working position shown in FIG. 3.
- the working space 70 of the second piston-cylinder unit 58 is filled by the valve block 75 via the hydraulic line 73 with pressurized hydraulic fluid, so that the movable cylinder 59 is displaced in the direction of the support 65 and consequently the rocker 62 executes a pivoting movement, which is transmitted to the lever 44 via the first piston-cylinder unit 56.
- the lever 44 in Figure 3 pivoted counterclockwise, ie the first lever arm 45 is lowered.
- the transition of the sweeping roller 30 from its rest position shown in FIG. 2 to the first working position shown in FIG. 3 takes place automatically when the engine 31 starts, under the action of the valve block 75. If the sweeping roller 30 is to assume its second working position, the user must press the button for this Actuate 80 so that the valve block 75 is acted upon via the control line 81 with a control signal, due to which the working space 69 of the first piston-cylinder unit 56 is filled with hydraulic fluid under pressure.
- valve block 75 ends the application of hydraulic fluid to the piston-cylinder units 56 and 58.
- the respective piston rods 54 and 60 are then due to the gas filling on them the restoring force acting on the units pushes out of the respective cylinder 55 or 59 to such an extent that the lever 44 is pivoted and the support arm 40 is raised from the collar 50 which engages under the lower edge 48 and consequently the sweeping roller 30 assumes its rest position shown in FIG.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Machines (AREA)
- Cleaning In General (AREA)
- Shovels (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200410022349 DE102004022349A1 (de) | 2004-04-29 | 2004-04-29 | Verfahren zur Positionierung zumindest einer Kehrwalze einer verfahrbaren Kehrmaschine sowie Kehrmaschine zur Durchführung des Verfahrens |
| PCT/EP2005/004444 WO2005106127A1 (de) | 2004-04-29 | 2005-04-26 | Verfahren zur positionierung einer kehrwalze sowie kehrmaschine zu dessen durchführung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1740774A1 true EP1740774A1 (de) | 2007-01-10 |
| EP1740774B1 EP1740774B1 (de) | 2013-11-13 |
Family
ID=34966142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP05737020.7A Expired - Lifetime EP1740774B1 (de) | 2004-04-29 | 2005-04-26 | Verfahren zur positionierung einer kehrwalze sowie kehrmaschine zu dessen durchführung |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1740774B1 (de) |
| DE (1) | DE102004022349A1 (de) |
| DK (1) | DK1740774T3 (de) |
| ES (1) | ES2438990T3 (de) |
| WO (1) | WO2005106127A1 (de) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB695207A (en) * | 1950-06-09 | 1953-08-05 | Smith S Jacking Systems Ltd | Improvements in or relating to means for controlling the pressure of the brush of a road sweeping machine against the road |
| US4219901A (en) * | 1978-12-29 | 1980-09-02 | The Scott & Fetzer Company | Riding sweeper |
| US4951347A (en) | 1989-10-26 | 1990-08-28 | Elgin Sweeper Co. | Brush-type cleaning system |
| IT240504Y1 (it) * | 1996-03-14 | 2001-04-02 | Dulevo Int Spa | Veicolo per la raccolta di polvere e rifiuti |
| US7793376B2 (en) * | 2002-08-30 | 2010-09-14 | Rush Sr John Conaway | Truck mounted rotating broom system |
-
2004
- 2004-04-29 DE DE200410022349 patent/DE102004022349A1/de not_active Withdrawn
-
2005
- 2005-04-26 DK DK05737020.7T patent/DK1740774T3/da active
- 2005-04-26 ES ES05737020.7T patent/ES2438990T3/es not_active Expired - Lifetime
- 2005-04-26 EP EP05737020.7A patent/EP1740774B1/de not_active Expired - Lifetime
- 2005-04-26 WO PCT/EP2005/004444 patent/WO2005106127A1/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2005106127A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DK1740774T3 (da) | 2014-01-20 |
| ES2438990T3 (es) | 2014-01-21 |
| EP1740774B1 (de) | 2013-11-13 |
| DE102004022349A1 (de) | 2005-11-17 |
| WO2005106127A1 (de) | 2005-11-10 |
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