DK158606B

DK158606B - Apparatus for cleaning vehicle tyres

Info

Publication number: DK158606B
Application number: DK301184A
Authority: DK
Inventors: Hans Ingemar Pihlgren
Original assignee: Kaahlli West Ab
Priority date: 1983-06-21
Filing date: 1984-06-20
Publication date: 1990-06-18
Also published as: FI842461A; DK301184D0; SE440636B; FI71903C; SE8303549L; DK158606C; FI71903B; FI842461A0; DK301184A; NO842231L; SE8303549D0; NO157009C; NO157009B

Description

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Opfindelsen angår et apparat til at fjerne jord, ler og lignende fra køretøjsdæk, navnlig fra dæk med et dybt reliefmønster, såsom traktordæk.The invention relates to an apparatus for removing soil, clay and the like from vehicle tires, in particular from tires with a deep relief pattern, such as tractor tires.

De drivende hjul på traktorer og entreprenørmaskiner har 5 i almindelighed dæk med dybe reliefmønstre. Det er et besværligt problem, at disse dækmønstre ofte fyldes med jord, ler eller lignende. Herved kan hjulenes gribeevne formindskes, hvilket er en ulempe. Den største ulempe består dog i, at den jord, det ler eller lignende, der har sat sig 10 fast i dækmønsteret, løsner ved udkørslen på en vej og dér udgør en fare for trafikken, også er forbudt ifølge gældende færdselsbestemmelser. Det er derfor nødvendigt at fjerne jord, ler osv., inden man må køre ud på en alment trafikeret vej. Der har indtil nu ikke eksisteret effektive 15 hjælpemidler til at udføre denne rengøring. Ganske vist er der blevet foreslået skrabere og børster af forskellig udformning til rengøring af køretøjsdæk, jf. f.eks. US-patentskrift nr. 2.617.663 og 2.740.643, men apparater, der fungerer ifølge de heri omtalte principper, kan ikke anvendes 20 med godt resultat til rengøring af traktordæk og lignende dæk med dybt reliefmønster, navnlig ikke ved sådanne dæk, der er udstyret med diagonalribberkThe driving wheels on tractors and construction machinery generally have 5 tires with deep relief patterns. It is a troublesome problem that these cover patterns are often filled with soil, clay or the like. This can reduce the grip ability of the wheels, which is a disadvantage. The main disadvantage, however, is that the soil, the clay or the like, which has become trapped in the tire pattern, loosens at the exit on a road and where there is a danger to the traffic, is also prohibited according to current traffic regulations. It is therefore necessary to remove soil, clay, etc. before driving on a public road. To date, there have not been effective 15 aids to perform this cleaning. Admittedly, scrapers and brushes of various designs have been proposed for cleaning vehicle tires, cf. U.S. Patent Nos. 2,617,663 and 2,740,643, but apparatus operating in accordance with the principles herein, cannot be used successfully to clean tractor tires and similar tires with deep relief patterns, especially not for such tires which are equipped with diagonal ribs

Det er opfindelsens formål at anvise udformningen af et effektivt apparat til at fjerne jord, ler og lignende fra køre-25 tøjsdæk, navnlig dæk med dybt reliefmønster, såsom traktordæk. Dette formål opnås ved et apparat, som ifølge opfindelsen er ejendommeligt ved mindst én rengøringsmekanisme med et antal slagorganer, der er forbundet med et nav, samt organer til at bringe navet til at rotere på en sådan måde, at de 30 nævnte slagorganer bringes til at rotere omkring navets midterakse, idet afstanden mellem navets midterakse og dækket er således valgt, at slagorganerne under rotationen bringes til at slå mod dækkets slidbane.It is an object of the invention to provide the design of an effective apparatus for removing soil, clay and the like from vehicle tires, in particular tires with deep relief patterns, such as tractor tires. This object is achieved by an apparatus which according to the invention is characterized by at least one cleaning mechanism having a plurality of impact members connected to a hub, as well as means for causing the hub to rotate in such a way that the said impact members are caused to rotate. rotate about the center axis of the hub, the distance between the center axis of the hub and the tire being selected such that during the rotation the impact means is brought against the tire tread.

En foretrukken udførelsesform til rengøring af dæk med kraftige 35 ribber er ifølge opfindelsen ejendommelig ved, at det plan el-According to the invention, a preferred embodiment for cleaning tires with heavy 35 ribs is that

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2 ler de planer, hvori slagorganerne bevæger sig under rotationen, ligger i alt væsentligt parallelt med ribbernes længderetning. Denne udførelsesform er særlig velegnet til anvendelse med den type dæk med diagonalribber, som i vid udstrækning anven-5 des på traktorer.2 shows that the planes in which the striking means move during rotation are substantially parallel to the longitudinal direction of the ribs. This embodiment is particularly well suited for use with the type of tire with diagonal ribs widely used on tractors.

Det foretrækkes, at apparatet omfatter mindst to rengøringsapparater, mindst ét for hver halvdel af dækket. Ved hjælp af disse to rengøringsapparater kan størsteparten af dækkets med ribber forsynede periferiområde rengøres. Til opnåelse 10 af fuldstændig rengøring er det imidlertid muligt at tilslutte flere mekanismer af samme art til det samme rotations-drivorgan.It is preferred that the apparatus comprises at least two cleaners, at least one for each half of the tire. With the help of these two cleaners, most of the tire peripheral area can be cleaned. However, for complete cleaning 10, it is possible to connect multiple mechanisms of the same kind to the same rotary drive.

Ved en foretrukken udførelsesform omfatter de nævnte rota-tionsdrivorganer en bøjelig aksel, der sækker sig gennem de 15 nævnte navn og i alt væsentligt over dækkets fulde bredde, idet akselen er drejeligt lejret i afstand fra dækkets slidbane .In a preferred embodiment, said rotary drive means comprises a flexible shaft which extends through said names and substantially over the full width of the tire, the shaft being pivotally spaced from the tire tread.

For at undgå beskadigelse af dækket er de slagorganer, der slår imod dækket og rengør dette, hensigtsmæssigt afrundede, 20 dvs. de har ingen skarpe kanter eller hjørner.In order to avoid damage to the tire, the impactors which strike and clean the tire are suitably rounded, ie. they have no sharp edges or corners.

Opfindelsen skal i det følgende forklares nærmere under henvisning til tegningen, på hvilken fig. 1 viser en foretrukken udførelsesform for apparatet, set fra siden, 25 fig. 2 viser det samme apparat, set ovenfra, fig. 3 i større målestok viser en rengøringsmekanisme i hvilestillingen, og fig. 4 viser et apparat ifølge en noget ændret udførelsesform for opfindelsen.The invention will now be explained in more detail with reference to the drawing, in which: 1 is a side view of a preferred embodiment of the apparatus; FIG. 2 is a top plan view of the same apparatus; FIG. 3 shows on a larger scale a cleaning mechanism in the rest position, and fig. 4 shows an apparatus according to a somewhat changed embodiment of the invention.

30 Fig. 1 og 2 viser et traktordæk 1, en hjulaksel 2 og et traktorstel 3. Traktordækket 1 er på sædvanlig måde udformet med diagonalt anbragte ribber 4a og 4b, idet ribberne 4a strækker sig fra den ene side af dækket over noget mere end dæk- 3FIG. 1 and 2 show a tractor tire 1, a wheel axle 2 and a tractor frame 3. The tractor tire 1 is in the usual way formed with diagonally arranged ribs 4a and 4b, the ribs 4a extending from one side of the tire over something more than tire 3.

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kets ene halvdel, medens ribberne 4b strækker sig diagonalt over den anden halvdel. Mellem ribberne er der mellemrum 5a henholdsvis 5b. Ved kørsel i fugtig jord og fugtigt ler fyldes disse mellemrum 5a og 5b med det pågældende materiale.one half of the chain while the ribs 4b extend diagonally across the other half. Between the ribs are spaces 5a and 5b, respectively. When driving in damp soil and damp clay, these spaces 5a and 5b are filled with the material in question.

5 Opfindelsen sigter på at fjerne disse ansamlinger i mellemrummene 5a og 5b.The invention aims to remove these accumulations in the spaces 5a and 5b.

Ifølge opfindelsen er hvert af hjulene 1 forsynet med et apparat 6 ifølge opfindelsen. Hvert sådant apparat 6 omfatter mindst to rengøringsmekanismer 7a og 7b, en til hver halvdel 10 af dækket, dvs. med henblik på rengøring af mellemrummene 5a mellem ribberne 4a henholdsvis mellemrummene 5b mellem ribberne 4b. Apparatet kan imidlertid omfatte flere rengørings-mekanismer. I det viste eksempel kan det således være hensigtsmæssigt at anordne en eller flere rengøringsmekanismer 15 nærmere midterlinien af dækket 1 for også at opnå en effektiv rengøring af de midterste dele af traktormønsteret, dersom dette findes påkrævet.According to the invention, each of the wheels 1 is provided with an apparatus 6 according to the invention. Each such apparatus 6 comprises at least two cleaning mechanisms 7a and 7b, one for each half of the tire, i. for cleaning the gaps 5a between the ribs 4a and the gaps 5b, respectively, between the ribs 4b. However, the apparatus may comprise several cleaning mechanisms. Thus, in the example shown, it may be convenient to arrange one or more cleaning mechanisms 15 closer to the center line of the tire 1 so as to obtain effective cleaning of the middle portions of the tractor pattern, if required.

Fig. 3 viser i større målestok en rengøringsmekanisme 7a. Mekanismen består af et nav 8 og otte parvis anbragte rengø-20 ringslegemer 9a, 9b, 10a, 10b, 11a, 11b og 12a, 12b. I det viste eksempel består disse legemer af sfæriske stålkugler, men de kan f.eks. også være afrundet cylindriske. Navet 8 består af to firkantede blokke 13 og 14. I den første blok 13 er de fire førstnævnte rengøringslegemer 9a, 9b, 10a og 10b 25 fastgjort, og i den bageste blok 14 er de øvrige rengøringslegemer 11a, 11b, 12a og 12b fastgjort. De parvis forbundne rengøringslegemer, såsom 9a og 9b, er indbyrdes forbundne ved hjælp af en stålwire 15, der strækker sig gennem den forreste blok 13, hvori wiren 15 er fastgjort ved hjælp af en 30 fastgørelsesskrue 16. Også de øvrige rengøringslegemer er fastgjort til navet på tilsvarende måde.FIG. 3 shows on a larger scale a cleaning mechanism 7a. The mechanism consists of a hub 8 and eight pairs of cleaning bodies 9a, 9b, 10a, 10b, 11a, 11b and 12a, 12b. In the example shown, these bodies consist of spherical steel balls, but they can e.g. also be rounded cylindrical. The hub 8 consists of two square blocks 13 and 14. In the first block 13, the four first cleaning bodies 9a, 9b, 10a and 10b 25 are attached, and in the rear block 14 the other cleaning bodies 11a, 11b, 12a and 12b are fixed. The paired cleaning bodies, such as 9a and 9b, are interconnected by means of a steel wire 15 extending through the front block 13, in which the wire 15 is secured by a fastening screw 16. Also the other cleaning bodies are attached to the hub in a similar way.

Gennem navet 8 strækker der sig en bøjelig aksel 17. Akselen 17 kan f.eks. bestå af en stålwire med et hylster, som sam-35 tidigt beskytter wiren. Den bøjelige aksel 17 er fastgjort i 4A flexible shaft 17. extends through the hub 8. The shaft 17 can e.g. consist of a steel wire with a sleeve which simultaneously protects the wire. The flexible shaft 17 is fixed in 4

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navet 8 ved hjælp af en eller flere fastgørelsesskruer 18. Akselen 17 strækker sig* ligeledes gennem et leje i en lejekonsol 19a. Til den anden mekanisme 7b findes der på samme måde en lejekonsol 19b og derimellem et leje i en lejekon-5 sol 19c. De tre lejekonsoller 19a, 19b og 19c sammen med de ikke viste lejer, som de bærer, er monteret på en arm 20.the hub 8 by means of one or more fastening screws 18. The shaft 17 also extends through a bearing in a bearing bracket 19a. Similarly, for the second mechanism 7b there is a bearing bracket 19b and therebetween a bearing in a bearing bracket 19c. The three bearing brackets 19a, 19b and 19c together with the bearings not shown which they carry are mounted on an arm 20.

Armen 20 er monteret på traktorstellet 3 i et leje 21, der er således indrettet, at armen 20 kan svinges til side, når rengøringsapparatet 6 ikke er i funktion.The arm 20 is mounted on the tractor frame 3 in a bearing 21 which is arranged so that the arm 20 can be swiveled away when the cleaning apparatus 6 is not functioning.

10 Den bøjelige aksel 17 kan drejes omkring sin akse fra traktorens kraftudtag 22 gennem en vinkeldrevkasse 23. De øvrige drivende hjul på traktoren er udstyret på tilsvarende måde.The flexible shaft 17 can be rotated about its axis from the tractor PTO 22 through an angular gearbox 23. The other driving wheels on the tractor are equipped in a similar manner.

Som det først og fremmest fremgår af fig. 2, strækker den bøjelige aksel 17 sig fra drevkassen 23 i en bue til den før-15 ste lejekonsol 19a, gennem lejet i denne lejekonsol 19a og gennem navet 8 i mekanismen 7a og derefter vinkelret i afstand over ribberne 4a på den første halvdel af dækket 1.As first seen in FIG. 2, the flexible shaft 17 extends from the drive box 23 in an arc to the first bearing bracket 19a, through the bearing in this bearing bracket 19a and through the hub 8 of the mechanism 7a and then perpendicular to the ribs 4a on the first half of the tire first

I området ud for dækkets midterplan er akselen 17 afbøjet 90°, passerer gennem lejet i lejekonsollen 19c og strækker sig 20 derfra vinkelret over ribberne 4b i afstand fra disse over den anden halvdel af dækket, gennem navet i mekanismen 7b og gennem lejet i lejekonsollen 19b.In the region beyond the median plane of the tire, the shaft 17 is deflected 90 °, passes through the bearing in the bearing bracket 19c and extends therefrom perpendicularly to the ribs 4b at a distance therefrom over the other half of the tire, through the hub of the mechanism 7b and through the bearing in the bearing bracket 19b .

Når akselen 17 bringes til at rotere med høj hastighed, vil rengøringslegemerne og disse fastgørelseswirer 15 rette sig 25 radialt udad fra navet 8. Herved kommer på grund af orienteringen af navene 8 og akselen 17 rotationsplanerne for rengøringslegemenerne 15 til at ligge parallelt med længderetningerne for ribberne 4a og 4b. På denne måde kan rengøringslegemerne 9a, 9b, 10a ...... 12b på effektiv måde komme ind i . 30 mellemrummene 5a og 5b mellem ribberne 4a henholdsvis 4b og på effektiv måde fjerne jord, ler osv., som har samlet sig i disse mellemrum, efterhånden som dækket 1 roterer.When the shaft 17 is rotated at high speed, the cleaning bodies and these fastening wires 15 will radiate outwardly radially from the hub 8. Due to the orientation of the hubs 8 and the shaft 17, the rotation planes of the cleaning bodies 15 will be parallel to the longitudinal directions of the ribs. 4a and 4b. In this way, the cleaning bodies 9a, 9b, 10a ...... 12b can effectively enter. The spaces 5a and 5b between the ribs 4a and 4b, respectively, effectively remove soil, clay, etc. which have accumulated in these spaces as the tire 1 rotates.

Fig. 4 viser en ændret udførelseseksempel, og i denne figur har de dele, der svarer til tilsvarende dele i fig. 1-3, sam- 5FIG. 4 shows a modified embodiment, and in this figure the parts corresponding to corresponding parts in fig. 1-3, co-5

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me henvisningbetegnelser med tilføjelse af en 1. Lejerne på lejekonsollerne 19a'-19c' for den bøjelige aksel 17', der udgøres af en kraftig stålwire, er her betegnet 25. Dette udførelseseksempel adskiller sig fra det ovenfor omtalte 5 i hovedsagen ved, at der er færre slagorganer 9', 15', og at forbindelsesdelene 15' udgøres af tykke, fjedrende wire-stykker, som i sig selv kan virke som slagorganer, medens "lodderne" 9' er blevet reduceret til "sko" på enderne af wirestykkerne 15'.with reference numerals with the addition of a 1. The bearings of the bearing brackets 19a'-19c 'of the flexible shaft 17', which are constituted by a strong steel wire, are designated 25. This embodiment differs from the above-mentioned 5 in the main case in that are fewer impact members 9 ', 15' and the connector members 15 'are thick, resilient wire pieces which may themselves act as impact members while the "solder" 9 "has been reduced to" shoes "on the ends of the wire pieces 15 '.

Claims

Apparatus for removing soil, clay and the like from vehicle tires, in particular from tires with a deep relief pattern, such as tractor tires, characterized by, (a) at least one cleaning mechanism (7a, 7b) with a plurality of impact members (9a, 9b, 10a) .... 12b, 91,15 ') associated with a hub (8), and b) means (17,23) for causing the hub (8) to rotate in such a manner that said impact members is caused to rotate about the center axis of the hub (8), c) the distance between the center axis of the hub (8) and the tire (1) is selected such that during the rotation the impact means is struck against the tread of the tire.

Apparatus according to claim 1 for cleaning tires with strong ribs (4a, 4b), characterized in that the plane or planes in which the striking members move during rotation are substantially parallel to the ribs (4a, 4b). ) longitudinal direction.

Apparatus according to claim 2, characterized in that the plane or planes in which the impactors move during rotation with respect to the tread of the tire are inclined in such a way that the plane or planes lie substantially parallel to inclined ribs (4a , 4b) on the tire (1).

Apparatus according to claim 1, characterized in that said means for causing the hub (8) to rotate comprise a flexible shaft (17) extending through the name and over the width of the tire (1), which is pivotally mounted away from the tread of the tire (1).

Apparatus according to one or more of claims 1-4, characterized in that the impact means are rounded, i.e. that they lack sharp edges and corners in such a way that they do not damage the tire. DK 158606 B

Apparatus according to claim 5, characterized in that the flexible shaft (17) first extends over one half of the tire (1) substantially perpendicular to the ribs (4a) of this half, on which it substantially extends beyond the tire (1) the median plane extends through a bend of 90 ° from which it extends over the second half of the tire (1) substantially perpendicular to the ribs (4b) of that half.

Apparatus according to claim 6, characterized in that the cleaning mechanism (7a), together with bearings for the flexible shaft (17), is mounted on an arm (20) which is mounted on the tractor so that it can be swiveled to the side.

Apparatus according to one or more of claims 1 to 7, characterized in that the impacting means (9a, 9b ...... 12b) are made up of weights which are individually connected to the hub (8) through a flexible connecting part. (15).

Apparatus according to one or more of claims 1 to 7, characterized in that the impact means (9 ') are constituted by rigid but elastic resilient rods (15') on the hub (8 ').