EP0083840B1 - Tuyère d'aspiration pour camions de collecte - Google Patents

Tuyère d'aspiration pour camions de collecte Download PDF

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Publication number
EP0083840B1
EP0083840B1 EP19820306396 EP82306396A EP0083840B1 EP 0083840 B1 EP0083840 B1 EP 0083840B1 EP 19820306396 EP19820306396 EP 19820306396 EP 82306396 A EP82306396 A EP 82306396A EP 0083840 B1 EP0083840 B1 EP 0083840B1
Authority
EP
European Patent Office
Prior art keywords
nozzle
brush
suction
guide
refuse
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
Application number
EP19820306396
Other languages
German (de)
English (en)
Other versions
EP0083840A1 (fr
Inventor
Anthony James Duthie
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.)
JOHNSTON ENGINEERING LIMITED
Original Assignee
JOHNSTON ENGINEERING Ltd
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 JOHNSTON ENGINEERING Ltd filed Critical JOHNSTON ENGINEERING Ltd
Publication of EP0083840A1 publication Critical patent/EP0083840A1/fr
Application granted granted Critical
Publication of EP0083840B1 publication Critical patent/EP0083840B1/fr
Expired 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
    • E01H1/08—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
    • E01H1/0845—Apparatus dislodging all of the dirt by suction ; Suction nozzles with mechanical loosening or feeding instruments for the dirt to be sucked- up, e.g. brushes, scrapers

Definitions

  • This invention relates to suction nozzles which are mounted in use on suction refuse collecting vehicles and which are of the type having an opening which in use is downwardly facing and adjacent to the ground, a refuse material inlet at a front end of the nozzle, a suction outlet for connection by a suction conduit to a low pressure zone on the vehicle, a brush rotatably mounted in the nozzle for assisting passage of refuse material to the outlet, and means for rotating the brush.
  • Such a suction nozzle is known from G B-A-1 184 795.
  • the invention further improves the effectiveness of sweeping of the known nozzle by providing an air inlet aperture of predetermined size at a rear end of the nozzle to allow passage of air through the air inlet aperture to the suction outlet, the brush being positioned between the air inlet aperture and the suction outlet so that the air travelling from the air inlet aperture to the suction outlet passes generally through the brush harmoniously with the rotation thereof.
  • the nozzle may optionally be shaped upwardly and forwardly around the material inlet so that in use the material inlet faces forwardly and downwardly.
  • the brush is preferably adjustable generally inwardly and outwardly of the nozzle so as to be adjustable in use relative to the ground to compensate for wear of the brush.
  • a brush contact member may be mounted in the nozzle so as to contact the brush while it rotates to clean it.
  • This contact member may be an intermediate transverse wall located in the nozzle generally between the brush and the suction outlet.
  • the brush and contact member are adjustable relative to one another to compensate for wear of the brush.
  • At least one guide is located in the nozzle so as to guide refuse material which has entered the material inlet towards a zone which is central of the suction outlet.
  • a second guide may advantageously be similarly located in the nozzle, the two guides being mutually convergent towards the said zone.
  • the guide or guides may be located to contact the ground in use or so as to be spaced therefrom by a small clearance.
  • the or each guide may be formed of resilient material such as rubber. It is desirable but not essential for the or each guide to terminate below the suction outlet.
  • the or each guide may form part of a sealing skirt adapted to prevent or restrict air entry into the nozzle from the sides thereof.
  • the invention further provides a suction refuse collector vehicle comprising a nozzle as above.
  • a suction nozzle 10 comprises a housing 11 having a downwardly facing opening 16 for juxtaposition with the ground 14 to be swept, and a suction outlet 12 which is connected by a flexible suction conduit 13 to a low pressure refuse chamber on the vehicle on which the nozzle is mounted.
  • the housing 11 is curved upwardly and forwardly at the front of the nozzle to provide an inlet 17 to the nozzle for refuse material encountered as the nozzle is moved forwardly along the ground.
  • the nozzle rides in operation on replaceable wear resistant skids or runners 18 secured to the housing 11. These skids 18 can ride over obstructions up to a certain height and also serve as means to seal as much as possible the interior of the nozzle along the sides thereof from the ambient air.
  • a cylindrical brush 20 is rotatably mounted in the housing 11 to the rear thereof so as to assist passage of refuse material which has entered the refuse inlet 17 to the suction outlet 12; the brush 20 is rotated in the direction of the arrow A while contacting the ground so as to flick generally forwardly and upwardly refuse material which has reached the brush without having been sucked up through the outlet 12.
  • the housing 11 is formed at the rear with an air inlet 21 of substantial and predetermined size, the air inlet being continuous with the opening 16.
  • the brush 20 is positioned between the inlet 21 and outlet 12 so that air entering the nozzle from the inlet 21 will pass through the brush 20 in sympathy with the rotation thereof and cooperating therewith to urge refuse material to the suction outlet, as shown by arrows in Figure 2.
  • a brush contact member in the form of an intermediate dividing wall 24 of the nozzle is formed in the housing 11 so as to contact the brush 20 and therefore clean it as it rotates.
  • the wall 24 is provided at its lower edge with a scraper or comb 25 for contact with the brush 20.
  • the brush 20 together with the wall 24 effectively provide a rear wall of the nozzle opening presented to the ground.
  • the brush 20 is adjustable relative to the housing 11 along a direction diagonally forwards and downwards; this gives adjustment of the cylindrical brush 20 both (a) inwardly and outwardly of the nozzle towards and away from the ground, and (b) towards and away from the wall 24, in order to compensate for wear of the cylindrical brush 20.
  • the brush in a worn state is shown in broken lines at 20'.
  • convergent guides 27 of rubber which guide refuse material which has entered the material inlet 17 towards a zone which is roughly centrally below the suction outlet 12 and therefore of maximum suction concentration.
  • the rubber guides 27 are arranged with a small clearance at their lower edges with the ground and due to their resilient nature will flex if they meet with an obstruction so as not to disturb the ride of the nozzle over the ground.
  • the nozzle 10 may be arranged with two cylindrical rotating brushes 30 arranged in vee formation in advance of the nozzle and in contact with the ground so as to windrow refuse material into a narrow column 15 in the path of the nozzle.
  • Figure 4 shows this arrangement in plan view.
  • the column of refuse material is further reduced in width by the guide 27 and in extreme conditions the refuse material can completely block the window 32 at the rear end of the guides 27. Despite this blockage, which could stem the flow of air entering the inlet 17, the refuse material continues to be drawn up through the outlet 12 by the air entering the inlet 21, the brush 20 assisting if necessary.
  • the passage of air through the revolving brush 20 in harmony with its rotation produces maximum material lift-off.
  • FIGS 5 to 7 show a modified suction nozzle 40 which is supported by two castoring wheels 48 and a rear fixed trailing wheel 49 instead of by skids as in the first embodiment.
  • the nozzle 40 is basically similar to the nozzle 10, comprising a housing 41 having a downwardly facing opening 46 adjacent to the ground and a suction outlet 42 connected by a flexible suction conduit 43 to the low pressure refuse chamber on the vehicle on which the nozzle is mounted.
  • the interior of the housing is shaped upwardly at the front towards a refuse material inlet 47 to the nozzle 40.
  • the castoring wheels 48 are swivel mounted on a cross bar 39 secured to the housing 41, articulation of the wheels being accepted by the omission of supporting skids, as shown in Figure 7.
  • the trailing wheel 49 is rotatably mounted on the housing 41.
  • a cylindrical brush 50 assists passage of refuse material to the outlet 42 in the same manner as brush 20.
  • the brush 50 is carried by an arbor 38 rotatably mounted in bearings 37 attached to the housing 41, the arbor being driven to rotate by a hydraulic motor 36.
  • a portion 41' of the housing 41 is removable to allow access to and removal of the brush 50.
  • a brush contact member 54 is provided in exactly the same manner as in the first embodiment and the brush 50 is again mounted adjustably so that it can still contact the member 54 and the ground when worn.
  • sealing means in the form of resilient close ground clearance skirts 56 are secured to the housing 41 on each side thereof, the skirts being made of wear resistant rubber. At the front the skirts are shaped to provide convergent guides 57 which perform the same function as the guides 27.
  • An air inlet 51 like the inlet 21 is provided at the rear of the housing and air similarly flows through this inlet and through the brush consonantly with the rotation thereof.
  • the nozzle 40 may be fitted to a street sweeping vehicle 60 which is shown schematically in plan in Figure 8.
  • the rear wheels are designated 61 and the front wheels 62 are shown turned to negotiate a tight corner.
  • the nozzle is towed beneath the vehicle 60 by dragbar means (not shown) and the fixed trailing wheel 49 causes the nozzle to "track" correctly round the corner.
  • the turning radii of the various wheels relative to the centre of turning are shown in chain-dot lines.
  • the usual channel brush 63 (which sweeps the kerb 64) and wide sweep brush 65 of the vehicle sweep the refuse into a windrow 66 to be sucked up by the nozzle.
  • the nozzle 40 has similar advantages to the nozzle 20; the preferential air flow from the rear air inlet 51 through the brush 50 in harmony with the rotation thereof provides an extremely effective sweeping of the refuse material up through the outlet 52.
  • the above nozzles may be used for conventional suction road sweepers and also for vehicles for sweeping large paved areas such as aircraft parking and maintenance areas and for airport run- ways, when they would be used typically in conjunction with the vee formation brushes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Cleaning Of Streets, Tracks, Or Beaches (AREA)
  • Cleaning In General (AREA)

Claims (13)

1. Tuyère, qui est montée en cours d'utilisation sur un véhicule de collecte de déchets par aspiration et qui comporte une ouverture (16,46) qui, en cours d'utilisation, est tournée vers le bas et est au voisinage du sol, une entrée (17, 47) des déchets ménagée dans une extrémité avant de la tuyère, et une sortie d'aspiration (12) destinée à être raccordée par un conduit d'aspiration (13,43) à une zone à basse pression du véhicule, une brosse (20, 50) montée rotative dans la tuyère pour faciliter l'entraînement des déchets en direction de la sortie, et des moyens servant à entraîner la brosse, caractérisée par une ouverture d'admission de l'air (21, 51) de dimensions prédéterminées, située à une extrémité arrière de la tuyère de manière à permettre le passage de l'air dans l'ouverture d'admission de l'air en direction de la sortie d'aspiration (12), la brosse (20, 50) étant disposée entre l'ouverture d'admission de l'air (21, 51) et la sortie d'aspiration (12) de sorte que l'air circulant depuis l'ouverture d'admission de l'air jusqu'à la sortie d'aspiration traverse d'une manière générale la brosse (20, 50) de concert avec la rotation de cette dernière.
2. Tuyère selon la revendication 1, dans laquelle la tuyère est conformée de manière à s'étendre vers le haut et vers l'avant autour de l'entrée (17, 47) des déchets de telle sorte qu'en cours d'utilisation, l'entrée des déchets est tournée vers l'avant et vers le bas.
3. Tuyère selon l'une des revendications précédentes, dans laquelle la brosse (20, 50) est réglable d'une manière générale vers l'intérieur et vers l'extérieur de la tuyère de manière à être réglable en cours d'utilisation par rapport au sol afin de compenser l'usure de la brosse.
4. Tuyère selon l'une quelconque des revendications précédentes, comportant en outre un organe (24, 25) de contact de la brosse qui est monté dans la tuyère de manière à contacter la brosse quand elle tourne, afin de la nettoyer.
5. Tuyère selon la revendication 4, dans laquelle l'organe de contact (24, 25) est une paroi transversale intercalaire située dans la tuyère, d'une manière générale entre la brosse (20) et la sortie d'aspiration (12).
6. Tuyère selon l'une ou l'autre des revendications 4 et 5, dans laquelle la brosse (20) et l'organe de contact (24, 25) sont réglables l'un par rapport à l'autre afin de compenser l'usure du balai.
7. Tuyère selon l'une quelconque des revendications précédentes, caractérisée par au moins un guide (27) situé dans la tuyère de manière à guider les déchets qui ont pénétré dans l'entrée (17) des déchets en direction d'une zone qui est au centre de la sortie d'aspiration (12).
8. Tuyère selon la revendication 7, caractérisé par un second guide (27) disposé d'une manière semblable dans la tuyère, les deux guides convergeant mutuellement vers ladite zone.
9. Tuyère selon l'une ou l'autre des revendications 7 et 8, dans laquelle le ou chaque guide (27) est disposé de manière à contacter le sol en cours d'utilisation ou de manière à être écarté de ce dernier, d'un faible espacement.
10. Tuyère selon l'une quelconque des revendications 7 à 9, dans laquelle le ou chaque guide (27) est constitué en un matériau élastique.
11. Tuyère selon l'une quelconque des revendications 7 à 10 et dans laquelle le ou chaque guide (27) se termine au-dessous de la sortie d'aspiration.
12. Tuyère selon l'une quelconque des revendications 7 à 11, dans laquelle le ou chaque guide (27) fait partie d'une jupe (56) de fermeture étanche apte à empêcher ou à limiter l'entrée de l'air dans la tuyère à partir des côtés de cette dernière.
13. Véhicule de collecte à aspiration incluant une tuyère telle que revendiquée selon l'une quelconque des revendications précédentes.
EP19820306396 1981-12-07 1982-12-01 Tuyère d'aspiration pour camions de collecte Expired EP0083840B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8136870 1981-12-07
GB8136870 1981-12-07

Publications (2)

Publication Number Publication Date
EP0083840A1 EP0083840A1 (fr) 1983-07-20
EP0083840B1 true EP0083840B1 (fr) 1985-04-10

Family

ID=10526425

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19820306396 Expired EP0083840B1 (fr) 1981-12-07 1982-12-01 Tuyère d'aspiration pour camions de collecte

Country Status (3)

Country Link
EP (1) EP0083840B1 (fr)
AU (1) AU553829B2 (fr)
DE (1) DE3263033D1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2164378A (en) * 1984-09-14 1986-03-19 Johnston Eng Ltd Suction nozzles for suction refuse collection vehicles
US4729141A (en) * 1987-01-07 1988-03-08 Tennant Company Disc brush suspension for a floor maintenance machine
US5010620A (en) * 1989-05-22 1991-04-30 Young Ronald E Stall and pasture vacuum machine
GB2238563A (en) * 1989-11-27 1991-06-05 Rolba Ag Street sweeper
DE4140926A1 (de) * 1991-12-09 1993-06-17 Kroll Fahrzeugbau Umwelt Kehreinrichtung
DE4414628A1 (de) * 1994-04-18 1995-10-19 Hako Gmbh & Co Fahrbare Kehrmaschine
US5839157A (en) * 1996-05-06 1998-11-24 Elgin Sweeper Company Street sweeper pick-up head
EP1215337A2 (fr) 2000-12-14 2002-06-19 Schmidt Holding GmbH Dispositif d'aspiration et de balayage
CN102767151A (zh) * 2012-07-31 2012-11-07 中联重科股份有限公司 清洁用吸嘴和清洁车

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987001404A1 (fr) * 1985-08-31 1987-03-12 Morningfield Limited Vehicules de nettoyage
CN106120625B (zh) * 2016-08-31 2019-09-24 徐工集团工程机械有限公司 垃圾收集装置及扫路机
CN106906779A (zh) * 2017-04-28 2017-06-30 徐州徐工环境技术有限公司 扫路车的吸扫装置和扫路车
CN107326848B (zh) * 2017-08-07 2019-06-25 武汉理工大学 吸扫式清扫车吸嘴

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH364803A (de) * 1958-05-29 1962-10-15 Schoerling & Co Waggonbau Selbstaufnehmende Kehrmaschine für Startbahnen, Strassen, Wege oder dergleichen mit Unterdruckförderung
GB1184795A (en) * 1966-11-14 1970-03-18 Johnston Brothers Eng Improvements in or relating to Suction Nozzles for use with Suction Refuse Collecting Vehicles
US3605170A (en) * 1969-03-11 1971-09-20 Gulf & Western Ind Prod Co Mobile suction cleaning device

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2164378A (en) * 1984-09-14 1986-03-19 Johnston Eng Ltd Suction nozzles for suction refuse collection vehicles
US4729141A (en) * 1987-01-07 1988-03-08 Tennant Company Disc brush suspension for a floor maintenance machine
US5010620A (en) * 1989-05-22 1991-04-30 Young Ronald E Stall and pasture vacuum machine
GB2238563A (en) * 1989-11-27 1991-06-05 Rolba Ag Street sweeper
GB2238563B (en) * 1989-11-27 1993-10-27 Rolba Ag Street sweepers
DE4140926A1 (de) * 1991-12-09 1993-06-17 Kroll Fahrzeugbau Umwelt Kehreinrichtung
DE4414628A1 (de) * 1994-04-18 1995-10-19 Hako Gmbh & Co Fahrbare Kehrmaschine
US5839157A (en) * 1996-05-06 1998-11-24 Elgin Sweeper Company Street sweeper pick-up head
EP1215337A2 (fr) 2000-12-14 2002-06-19 Schmidt Holding GmbH Dispositif d'aspiration et de balayage
DE10062329C1 (de) * 2000-12-14 2002-07-18 Schmidt Holding Gmbh Saug-Kehraggregat
CN102767151A (zh) * 2012-07-31 2012-11-07 中联重科股份有限公司 清洁用吸嘴和清洁车
CN102767151B (zh) * 2012-07-31 2015-01-21 中联重科股份有限公司 清洁用吸嘴和清洁车

Also Published As

Publication number Publication date
AU553829B2 (en) 1986-07-31
EP0083840A1 (fr) 1983-07-20
AU9115082A (en) 1983-06-16
DE3263033D1 (en) 1985-05-15

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