EP0197144A1 - Conduite d'aspiration pour un vehicule d'enlevement de detritus - Google Patents

Conduite d'aspiration pour un vehicule d'enlevement de detritus

Info

Publication number
EP0197144A1
EP0197144A1 EP19850905512 EP85905512A EP0197144A1 EP 0197144 A1 EP0197144 A1 EP 0197144A1 EP 19850905512 EP19850905512 EP 19850905512 EP 85905512 A EP85905512 A EP 85905512A EP 0197144 A1 EP0197144 A1 EP 0197144A1
Authority
EP
European Patent Office
Prior art keywords
suction shaft
flap
suction
air
shaft according
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.)
Withdrawn
Application number
EP19850905512
Other languages
German (de)
English (en)
Inventor
Alfred Schmidt
Herbert Ganzmann
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.)
Ing Alfred Schmidt GmbH
Original Assignee
Ing Alfred Schmidt 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 Ing Alfred Schmidt GmbH filed Critical Ing Alfred Schmidt GmbH
Publication of EP0197144A1 publication Critical patent/EP0197144A1/fr
Withdrawn legal-status Critical Current

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
    • E01H1/08—Pneumatically dislodging or taking-up undesirable matter or small objects; Drying by heat only or by streams of gas; Cleaning by projecting abrasive particles
    • E01H1/0827—Dislodging by suction; Mechanical dislodging-cleaning apparatus with independent or dependent exhaust, e.g. dislodging-sweeping machines with independent suction nozzles ; Mechanical loosening devices working under vacuum
    • E01H1/0836—Apparatus dislodging all of the dirt by suction ; Suction nozzles

Definitions

  • the invention relates to a suction shaft on a sweeping vehicle, which is provided adjacent to its suction opening on the rear wall with an air guiding device and on the front wall with a coarse dirt flap.
  • Devices of this type are used in particular for vehicles for street cleaning.
  • the suction opening of the suction shaft is guided tightly over the street surface, so that leaves, paper, tin cans or the like lying on the street. captured by an air stream and transported through the suction shaft into a dirt hopper.
  • the effective one is to achieve a high and uniform suction effect Airflow guidance is important.
  • a known suction shaft (German Patent 24 46728) has an extended rear wall at the lower end to form an air guiding device.
  • This air guiding device which is connected in one piece with the suction shaft, brings with it the danger of being damaged or clogged, especially when driving over bulky obstacles such as manhole covers or the like lying on the street.
  • the entire suction shaft can be adjusted in height by means of screwing devices. Since these can only be operated manually, a considerable amount of work is required each time they are adapted to different sized sweepings.
  • the invention has for its object to provide a suction shaft avoiding the disadvantages of the above-mentioned prior art, the suction opening of which can be quickly and easily adapted to different sized debris parts without the entire suction shaft being adjusted in its height ⁇ must.
  • a particularly effective and rational suction operation is to be achieved and the risk of damage to the suction shaft is largely avoided.
  • the air guiding device is a loosely supported air guiding flap, that this and also the coarse dirt flap by lifting cylinders and / or
  • Damping elements are movably connected to the suction shaft or an associated support frame and that
  • the air guide flap is fixedly connected to at least one swivel arm which is articulated on the suction shaft or support frame above the air guide flap and opposite it in the direction of the front wall.
  • the air guiding and coarse dirt flaps are movably suspended on the suction shaft housing or on an associated support frame and with damping elements, e.g. Springs provided with gas springs or the like, or actuable by means of active elements, which can be pneumatic or hydraulic cylinders.
  • damping elements e.g. Springs provided with gas springs or the like
  • active elements which can be pneumatic or hydraulic cylinders.
  • the use of active actuating cylinders is particularly advantageous because they can perform lifting functions as well as have damping properties and can also be remotely controlled. The last-mentioned property in particular enables the flaps to be raised quickly when bulky obstacles occur.
  • the flaps are completely lowered, ie in the next position to the sweeping surface, so that they lie directly on the outer sides of the front and rear walls of the suction shaft.
  • the seal can be further improved by coating one or both contact surfaces with rubber or the like material.
  • the coating is expediently designed such that there are no flow obstacles, such as shadow zones, along the transition area from the air guide flap to the rear wall. If the cylinders are in the depressurized state with the flaps lowered, the flaps can be pushed up by obstacles, since this is not impeded by a counterpressure of the actuating cylinders. This further reduces the risk of damage to the suction shaft with the flaps installed therein.
  • the invention remedies that the movement of the air guide flap is still guided by specially designed swivel arms.
  • the fulcrum of the swivel arms is mounted in such a way that the air guide flap lifts upwards when swiveled backwards.
  • additional devices e.g. Elongated holes.
  • their installation on the suction shaft can be precisely positioned.
  • the coarse dirt flap on the front wall of the suction shaft is particularly exposed to the risk of collision with bulky sweepings during sweeping special attention should be paid to the sequence of their movements. Accordingly, according to In a particularly advantageous variant of the invention, the coarse dirt flap is not pivoted upward in a circular arc, but rather is pulled upward approximately parallel to the front wall of the suction duct.
  • Such a 3-way guide can advantageously be implemented by means of an articulated lever guide or the like between the coarse dirt flap and the support frame and / or a running rail guide.
  • the air guiding surfaces in the air guiding flap, the contact surfaces of the respective flaps and / or the inner walls of the suction shaft can be coated with rubber or the like material. This dampens impacts from debris lying or flying around on the street; In addition, the durability of the entire device according to the invention is increased.
  • the coarse dirt flap can be made in its entirety from resiliently elastic material, for example synthetic rubber. As a result, even in its lower position, it can overcome obstacles on the road surface without being destroyed.
  • FIG. 1 is a schematic side view of a suction shaft attached to a sweeper
  • FIG. 2 is a side elevation of a suction shaft according to the invention
  • Fig. 3 shows the suction shaft. Fig. 1 with pulled up
  • Flaps, Fig. 4 in side elevation an enlarged partial section of an alternative embodiment of the front wall of the suction shaft.
  • the suction shaft 1 is arranged on a truck 40, for example on a Unimog, between its front wheel (not shown) and its rear wheel 41 on the right-hand side as viewed in the direction of travel F.
  • the suction shaft 1 essentially consists of the coarse dirt flap 6, the air guide flap 4 and the lifting cylinders 13, 14 and is connected to a feed 42 to a dirt hopper (not shown).
  • the suction shaft 1 is held in a support frame 43 indicated schematically, which is provided with a drawbar 44 directed essentially parallel to the direction of travel F.
  • the front end of the drawbar 44 is articulated on a flange 45 fastened to the chassis of the truck 40.
  • On both sides of the suction shaft 1 and the support frame 43 there is an impeller 47 rolling on the sweeping surface 46, only the right impeller 47 being drawn for the sake of clarity.
  • Ge. 2 is the suction shaft 1 moved in the direction of arrow P parallel to the floor surface at its lower end, where the suction opening 2 is located, with an air flap 4 resting on its rear wall 3 and with a coarse dirt flap 6 resting on its front wall 5 .
  • the contact surfaces 7 or 8 of the air guide flap 4 or coarse dirt flap 6 touching the outer walls of the suction shaft 1 can each be coated with a rubber cover.
  • the walls of the suction shaft 1 are formed by a housing 9 made of sheet steel and are lined on their inner sides with a rubber pad 10. The rubber pads 10 serve to protect the housing 9.
  • the air guide flap 4 or coarse dirt flap 6 are each pivotally connected to a rear lifting cylinder 13 or a front lifting cylinder 14 via articulation points 11, 12.
  • the rear lifting cylinder 13 is articulated at the pivot point 15, the front lifting cylinder 14 at the pivot point 16 on respective supports 17, 18 of a support frame (not shown).
  • the air guide flap has a plate 19 on both sides with an approximately triangular profile.
  • the lower ends of swivel arms 22 are firmly screwed to this by means of screw connections (not shown) leading through elongated holes 20, 21.
  • the elongated holes 20, 21 serve at the same time for fine adjustment of the height and inclination of the air guide flap 4.
  • the upper ends of the swivel arms 22 are rotatably supported at pivot points 36 above the air guide flap 4 and offset horizontally from the latter in the direction of the front wall 5. Due to this arrangement, the air guide flap can be swung out to the rear.
  • the air guide flap 4 is formed, similar to the walls of the suction shaft 1, from a steel / rubber composite construction made from a sheet steel profile 37 with a rubber contactor 38.
  • the steel sheet profile 37 is further stiffened by ribs 24 on the rear side.
  • the contact surface 7 of the air guide flap 4 is essentially formed by a stop element 25 with an approximately rectangular profile.
  • FIG. 3 shows the air guide flap 4 and the coarse dirt flap 6 in their raised position. Both are pulled by the rear lifting cylinder 13 or front lifting cylinder 14 in a pivoting movement upwards, the coarse dirt flap 6 in one
  • Fig. 4 no direct connection to the front wall 5 of the suction shaft 1 is provided for the coarse dirt flap 6.
  • the range of motion of the coarse dirt flap 6 is determined by two guide rods 27, 28 of different lengths, the upper guide rod 28 being longer than the lower guide rod 27.
  • Their ends on the flap side are rotatably mounted on the coarse dirt flap 6 in articulation points 29, 30; the other ends of the guide rods 27, 28 are articulated in articulation points 31, 32, which are provided on a support 33 belonging to the support frame.
  • the movement sequence of the coarse dirt flap 6 results from the guideway 34 of its upper articulation points 29 and the guideway 23 of its lower articulation points 30.
  • the suction height can be varied in a range from approximately 30 to 100 mm in the specific exemplary embodiment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Cleaning In General (AREA)

Abstract

Une conduite d'aspiration (1) pour le ramassage des détritus, qui près de son ouverture d'aspiration inférieure (2) est munie d'un clapet réglant l'écoulement d'air (4) et un clapet pour les détritus grossiers (6). Ces deux clapets peuvent être commandés par des vérins hydrauliques ou pneumatiques (13, 14) et/ou sont équipés d'éléments amortisseurs.
EP19850905512 1984-10-17 1985-10-16 Conduite d'aspiration pour un vehicule d'enlevement de detritus Withdrawn EP0197144A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843437990 DE3437990A1 (de) 1984-10-17 1984-10-17 Saugschacht an einem kehrfahrzeug
DE3437990 1984-10-17

Publications (1)

Publication Number Publication Date
EP0197144A1 true EP0197144A1 (fr) 1986-10-15

Family

ID=6248072

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19850905512 Withdrawn EP0197144A1 (fr) 1984-10-17 1985-10-16 Conduite d'aspiration pour un vehicule d'enlevement de detritus

Country Status (3)

Country Link
EP (1) EP0197144A1 (fr)
DE (1) DE3437990A1 (fr)
WO (1) WO1986002394A1 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4001088C2 (de) * 1990-01-17 1998-09-17 Smv Kehrfahrzeug
DE4128879A1 (de) * 1991-08-30 1993-03-04 Schoerling Waggonbau Verfahren zur reinigung von strassenoberflaechen oder dergleichen mit einem kehrfahrzeug sowie kehrfahrzeug
AT395991B (de) * 1991-10-16 1993-04-26 Ranner Dietrich Verfahren und vorrichtung zum entfernen von staub- und schmutzpartikel
DE4140926C2 (de) * 1991-12-09 1994-07-14 Kroll Fahrzeugbau Umwelt Kehreinrichtung
US5208941A (en) * 1992-06-23 1993-05-11 Mark Ettere High power vacuum attachment apparatus
DE4414628A1 (de) * 1994-04-18 1995-10-19 Hako Gmbh & Co Fahrbare Kehrmaschine
DE19520778C1 (de) * 1995-06-07 1996-07-18 Juergen Pierau Saugvorrichtung für eine Kehrmaschine
US5839157A (en) * 1996-05-06 1998-11-24 Elgin Sweeper Company Street sweeper pick-up head
US20120096671A1 (en) 2010-10-26 2012-04-26 Karcher North America, Inc. Floor cleaning apparatus employing a combined sweeper and vaccum assembly
US7533435B2 (en) 2003-05-14 2009-05-19 Karcher North America, Inc. Floor treatment apparatus
DE102009047368A1 (de) * 2009-12-01 2011-06-09 Max Holder Gmbh Kehranbauvorrichtung für ein Fahrzeug und selbstfahrendes Fahrzeug
US8978190B2 (en) 2011-06-28 2015-03-17 Karcher North America, Inc. Removable pad for interconnection to a high-speed driver system
ES2369983B1 (es) * 2011-07-28 2012-10-15 Ausa Center, S.L.U. Boca de aspiración con entrada flexible para vehículo barredora
DE102013003536A1 (de) 2013-03-02 2014-09-04 Aebi Schmidt Deutschland Gmbh Aufnehmende Kehrmaschine
USD907868S1 (en) 2019-01-24 2021-01-12 Karcher North America, Inc. Floor cleaner
DE102019001845A1 (de) * 2019-03-15 2020-09-17 Brock Kehrtechnik Gmbh Flächenreinigungsfahrzeug mit einer regelbaren Saugvorrichtung zur Reduzierung eines Strömungsquerschnittes

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB847709A (en) * 1958-03-27 1960-09-14 Johnston Brothers Eng Improvements in or relating to suction refuse collecting vehicles
DE1096941B (de) * 1959-01-08 1961-01-12 Schoerling & Co Waggonbau Durch Unterdruck den Kehricht selbstaufnehmende Kehrmaschine
DE2217975C3 (de) * 1972-04-14 1980-08-21 Schoerling Gmbh & Co Waggonbau, 3000 Hannover An einem Fahrzeug, insbesondere Schienenfahrzeug, angeordnete Einrichtung zum Reinigen von Schotterbetten, Gleisschwellen u.dgl. einer Gleisanlage
FR2213380B1 (fr) * 1973-01-04 1978-08-04 Materiel De Voirie
DE2446728C3 (de) * 1974-10-01 1981-02-12 Schoerling Gmbh & Co, Waggonbau, 3000 Hannover Saugvorrichtung für ein selbstaufnehmendes Kehrfahrzeug mit Unterdruckförderung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8602394A1 *

Also Published As

Publication number Publication date
WO1986002394A1 (fr) 1986-04-24
DE3437990A1 (de) 1986-04-24

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Inventor name: GANZMANN, HERBERT

Inventor name: SCHMIDT, ALFRED