EP0435978B1 - Kehrfahrzeug - Google Patents

Kehrfahrzeug Download PDF

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Publication number
EP0435978B1
EP0435978B1 EP90909675A EP90909675A EP0435978B1 EP 0435978 B1 EP0435978 B1 EP 0435978B1 EP 90909675 A EP90909675 A EP 90909675A EP 90909675 A EP90909675 A EP 90909675A EP 0435978 B1 EP0435978 B1 EP 0435978B1
Authority
EP
European Patent Office
Prior art keywords
vehicle according
sweeper vehicle
unit
sweeping
sweeper
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
EP90909675A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0435978A1 (de
Inventor
Alfred Dipl.-Ing. Schmidt (Fh)
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.)
Schmidt Alfred Dipl-Ing (fh)
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT90909675T priority Critical patent/ATE93916T1/de
Publication of EP0435978A1 publication Critical patent/EP0435978A1/de
Application granted granted Critical
Publication of EP0435978B1 publication Critical patent/EP0435978B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • E01H5/00—Removing snow or ice from roads or like surfaces; Grading or roughening snow or ice
    • E01H5/04—Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying levelling elements, conveying pneumatically for the dislodged material
    • E01H5/08—Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying levelling elements, conveying pneumatically for the dislodged material dislodging essentially by driven elements
    • E01H5/09—Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying levelling elements, conveying pneumatically for the dislodged material dislodging essentially by driven elements the elements being rotary or moving along a closed circular path, e.g. rotary cutter, digging wheels
    • E01H5/092—Brushing elements

Definitions

  • the present invention relates to a sweeper for sweeping traffic areas with at least one front axle and one rear axle and a rotating sweeper roller arranged between them and pivotable about a vertical axis.
  • Such a sweeper is known from DE-A-35 26 883. It has a sweeping roller arranged approximately in the center of the vehicle, which is driven in such a way that it rotates with the direction of rotation opposite to the vehicle wheels.
  • the broom is inclined with respect to the vehicle's longitudinal axis; This sweeps the sweepings to the side and ejects them under the sweeper.
  • Such sweepers are often equipped with a front-mounted snow plow and used for snow removal if a complete and residue-free removal of the snow from the traffic area (black clearance) is to be achieved.
  • black clearance is for example for the runways of. Airports required.
  • the sweeping rollers In order to enable economical snow removal in such extensive traffic areas, the sweeping rollers have a large length, which results in a correspondingly large sweeping width of the inclined sweeping roller.
  • the present invention is therefore based on the object of providing a generic sweeper in which an undisturbed discharge of the swept material to the side is possible even when using sweeping rollers of great length and when operating at high speeds, without the maneuverability of the vehicle being impaired in the process.
  • this object is achieved in that the sweeper is divided into a front unit built on the front axle and a rear unit built on the rear axle, which are connected to one another by means of a telescopically variable-length connecting unit bridging the sweeping roller, so that the wheelbase of the vehicle can be changed with it.
  • the wheelbase which is lengthened according to the invention, enables clearing with very large sweeping widths and high clearing speeds, in particular in the case of straight traffic areas such as, for example, at the runways of airfields, avoiding the disadvantages of known sweeping vehicles; With such a clearing operation, it is not a question of particularly good maneuverability of the sweeper.
  • Narrow clearing sections such as during apron clearance and turning at the ends of the runways can be cleared with a sweeper shortened according to the invention and at a relatively low clearing speed, so that the disadvantages described above are reliably avoided.
  • the minimum wheelbase can be selected even smaller than is the case with known sweeper vehicles with a fixed wheelbase, since the latter have to meet average requirements with regard to maneuverability and sweeping speed.
  • the sweeper according to the invention has a maximum shortened wheelbase for slow sweeping a higher maneuverability than known sweepers.
  • connection unit can be changed longer, ie can be lengthened and shortened, while the sweeper is traveling. In this way, the operator of the sweeper can shorten the wheelbase for turning the sweeper, for example, when the runway has reached the end, without the sweeping operation having to be interrupted. This makes the sweeping operation particularly economical.
  • the length of the connecting unit is particularly preferably changed hydraulically. The advantages of such a hydraulic control of the wheelbase are, in addition to the low maintenance requirements, the high flexibility with regard to the control and automation options as well as other advantages known for hydraulics.
  • To change the length of the connection unit at least one hydraulic telescopic cylinder assigned to it is preferably provided.
  • connection unit can also comprise additional guide parts which have suitable longitudinal guides.
  • the sweeping roller is preferably suspended on the sweeper by means of a rotary bearing so as to be pivotable about a vertical axis.
  • the side to which the dirt is ejected, as well as the ejection angle can be selected in accordance with the present conditions.
  • the angle between the sweeping roller and the longitudinal direction of the vehicle can be selected to be correspondingly acute are so that the side-facing component of the force exerted by the bristles of the sweeping roller on the sweepings is increased.
  • the sweeping roller which can be pivoted about a vertical axis is particularly preferably suspended on the connecting unit, such a suspension being particularly advantageous in which the suspension point can be displaced in the longitudinal direction of the vehicle.
  • connection unit can be extended at least to such an extent that the clear width between the front unit and the rear unit corresponds approximately to the length of the sweeping roller, which is pivoted below the outline of the vehicle and, if appropriate, aligned exactly in the longitudinal direction of the vehicle if the suspension point is centered between the Front unit and the rear unit is selected,
  • This possibility of swiveling the sweeper roller completely under the vehicle outline also allows the passage of relatively narrow garage doors, passages etc., although the sweeper vehicle has a sweeper roller, the length of which, for example, exceeds twice the vehicle width. Also because the length of the sweeper roller does not hinder the passage of narrow passages, the manageability of the sweeper vehicle according to the invention is thus improved compared to the known sweeper vehicles.
  • the connecting unit comprises a frame part rigidly connected to the rear unit and a telescopic part installed between the latter and the front unit.
  • a frame part rigidly connected to the rear unit and a telescopic part installed between the latter and the front unit.
  • Broom is suspended on the frame part after the weight of the broom with a corresponding weight distribution within the rear unit mainly acts on the rear axle.
  • axles on the front and rear units is chosen according to requirements; it is of no fundamental importance in the context of the present invention.
  • the front unit of the sweeper vehicle according to the invention preferably has at least one driven axle, a hydrostatic vehicle drive acting on the wheels of the or at least one rear axle being provided. Since only hydraulic lines, for example hoses, are required to transmit the drive power from the front unit designed as a power unit to the rear unit comprising the hydrostatic drive, the variable length of the connection between the front unit and the rear unit does not pose a problem for the power transmission, if a large variability in length, for example of several meters, is provided.
  • the hydrostatic vehicle drive also has advantages with regard to the infinitely variable variability of the drive torque and the driving speed over a wide range.
  • a hydraulic motor that is connected to the hydraulic supply provided in the drive head is also particularly preferably provided for driving the sweeping roller.
  • the coupling of the rotational speed of the sweeping roller to the driving speed of the sweeping vehicle can be achieved with particularly little effort by means of corresponding hydraulic controls.
  • the hydraulic motor can be flanged directly to the sweeping roller or, for example, arranged above it; in the latter case, a chain, a toothed belt or the like can be used to transmit the torque.
  • a separate drive unit for the sweeping roller is provided in the rear unit of the sweeper.
  • This is particularly expedient if very high drive powers are used to operate the sweeping roller are required, such as in the case of particularly large sweeping rollers and / or for sweeping particularly heavy sweepings.
  • the power can also be transferred hydraulically from the drive unit to the broom; equally, mechanical means such as shafts, chains, etc. are suitable for transmitting the drive power, particularly in the case of a suspension of the sweeping roller which cannot be displaced longitudinally.
  • the drive unit for the sweeping roller arranged in the rear unit can also be used to drive a sweeping fan arranged in the rear unit of the sweeper. Such a sweeping fan can further improve the sweeping performance of the sweeper according to the invention.
  • the sweeper is composed of the assemblies front unit 1, connecting unit 2, rear unit 3 and the sweeping device 4 arranged below the connecting unit 2.
  • the front unit 1 comprises the front horizontal frame 5, on which the cab 6 is constructed in the usual way, and the front support frame 7 arranged vertically upwards at the rear end of the front horizontal frame 5.
  • the rear unit 3 has a rear horizontal frame 8, at the front end of which the rear support frame 9 is arranged vertically upwards.
  • the sweeping fan 10 and the drive motor 11 serving to drive it are accommodated under the casing 37.
  • a blowing duct 12 points vertically downward from the sweeping fan 10, on which the blowing nozzle 13 is arranged so as to be pivotable about a vertical axis.
  • the front unit 1 and the rear unit 3 are connected to one another via the telescopically variable-length connecting unit 2.
  • the connecting unit 2 comprises two telescopic longitudinal guides, each of which is composed of an outer guide tube 14 and an inner guide tube 15.
  • the two inner guide tubes 15 are rigidly connected to the rear support frame 9, the two front guide tubes 14 to the front support frame 7.
  • the guide tubes of the two longitudinal guides each have a hydraulically actuated, double-acting telescopic cylinder 16, the front end 17 of which is articulated on the outer guide tube 14 and the rear end 18 of which is articulated on the inner guide tube 15 of each longitudinal guide.
  • the sweeping device 4 is suspended on the connecting unit 2 by means of two jacket tubes 19 which surround the outer guide tubes 14 of the longitudinal guides and are displaceable with respect to these in the vehicle longitudinal direction.
  • a hydraulically acting displacement cylinder 20, which is articulated on the one hand on the front support frame 7 and on the other hand on a web 21 connecting the two casing pipes 19, is used to move the two casing pipes 19 with respect to the outer guide pipes 14.
  • the two jacket tubes 19 are connected to one another in their rear area by a bridge 22 and in their front area by a support frame 23.
  • the sweeping device 4 comprises the sweeping roller 24, which is rotatably mounted in a sweeping roller frame 25. Via two spindles 26, two trailing support wheels 27 are attached to the sweeping roller frame 25, the height of the sweeping roller axis and thus the contact pressure of the sweeping roller 24 on the surface to be swept being adjustable during the sweeping operation via the spindles 26.
  • the sweeping roller 24 is driven by means of a hydraulic sweeping roller drive motor 28 arranged above it, the torque being transmitted from the sweeping roller drive motor 28 to the sweeping roller 24 by means of a chain and two sprockets.
  • the sweeping roller frame is connected to the horizontally arranged turntable 30 by means of four struts 29; the slewing ring 30 is arranged in the interior of a support ring 31 surrounding it.
  • a swivel motor 32 is fixedly connected to the support ring 31, which acts on the rotating ring 30 and thus serves to swivel the sweeping roller about a vertical axis.
  • the support ring 31 is connected to the support frame 23 by a spatial parallel link arrangement, the parallel link arrangement consists of two outer, lower links 33 and 34 and an upper, upper link 35 arranged above them.
  • the selected handlebar arrangement prevents rotation of the support ring 31 about its vertical axis as well as its oscillation, in particular when the sweeping device is raised.
  • a lifting cylinder 36 is used to lift the sweeping device 4 from the lower working position shown in FIGS. 1 and 2 into the upper transport position shown in FIG. 3, which is articulated on the one hand on the bridge 22 and on the other hand on the slewing ring 30.
  • FIG. 1 and 2 show the sweeper in its shortened state and with the sweeper in the working position, ie in the state in which it is when sweeping at low speed
  • Fig. 3 shows the same sweeper in an extended state, wherein at the same time the sweeping device 4 is shown in its raised position in the transport position.
  • the connecting unit 12 is extended so far that the clear width between the front unit 1 and the rear unit 3 is greater than the length of the sweeping roller 24; this is thus located in the longitudinal direction of the vehicle below the connection unit 2.
  • the displacement cylinder 20 is extended to such an extent that the suspension of the sweeping device 4, i.e. in particular, the lifting cylinder 36 is located centrally between the front support frame 7 and the rear support frame 9.
  • FIG. 3 correspond to those of FIGS. 1 and 2, so that reference is made to the above statements for the further explanation of FIG. 3.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Machines (AREA)
EP90909675A 1989-07-26 1990-06-15 Kehrfahrzeug Expired - Lifetime EP0435978B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90909675T ATE93916T1 (de) 1989-07-26 1990-06-15 Kehrfahrzeug.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3924646A DE3924646A1 (de) 1989-07-26 1989-07-26 Kehrfahrzeug
DE3924646 1989-07-26

Publications (2)

Publication Number Publication Date
EP0435978A1 EP0435978A1 (de) 1991-07-10
EP0435978B1 true EP0435978B1 (de) 1993-09-01

Family

ID=6385825

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90909675A Expired - Lifetime EP0435978B1 (de) 1989-07-26 1990-06-15 Kehrfahrzeug

Country Status (3)

Country Link
EP (1) EP0435978B1 (enrdf_load_stackoverflow)
DE (2) DE3924646A1 (enrdf_load_stackoverflow)
WO (1) WO1991002121A1 (enrdf_load_stackoverflow)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9108574U1 (de) * 1991-07-12 1991-09-19 Küpper-Weisser GmbH, 7715 Bräunlingen Befestigungsvorrichtung für Zwischenachsaggregate an Lastkraftfahrzeugen
JP4495044B2 (ja) * 2005-07-29 2010-06-30 本田技研工業株式会社 除雪機
CN101280552B (zh) * 2008-05-28 2010-06-02 上海上隧实业公司 隧道路沟清扫装置
CN103306233B (zh) * 2013-06-06 2015-05-06 长安大学 一种基于压力反馈的除雪车滚刷自动补偿控制方法
CN104790322B (zh) * 2015-04-20 2017-03-01 江苏佳鹿环卫装备有限公司 清扫范围可调的清扫车
EP3284866B1 (de) * 2016-08-18 2019-06-12 Marcel Boschung AG Räumfahrzeug mit einer koppelbaren kehrblasanordnung

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU4669568A (en) * 1969-11-14 1971-05-20 N. Z. Arc Melding Works Limited Improvements in and relating to trailed vehicles
FI89148C (fi) * 1984-04-13 1993-08-25 Rolux Oy Lyfttransportvagn kopplad till en draganordning
DE3526883A1 (de) * 1985-07-26 1987-02-05 Schmidt Alfred Ing Gmbh Schneekehrwalze
FI74504C (fi) * 1986-12-01 1988-02-08 Rahtikone Oy Rengoeringsanordning foer vaeg, flygfaelt el.dyl. underlag.
CN1012831B (zh) * 1987-04-23 1991-06-12 雷伯里地区企业沙恩公司 用于清扫带坚硬表面的地面的清扫车
US4750785A (en) * 1987-06-22 1988-06-14 Helton Jesse D Truss transportation trailer
US4815223A (en) * 1988-01-04 1989-03-28 West Mountain Sales, Inc. Snow grooming vehicle and attachments

Also Published As

Publication number Publication date
WO1991002121A1 (de) 1991-02-21
EP0435978A1 (de) 1991-07-10
DE3924646A1 (de) 1991-01-31
DE59002560D1 (de) 1993-10-07
DE3924646C2 (enrdf_load_stackoverflow) 1991-05-16

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