DK155984B

DK155984B - Support equipment for use in the inflation of a tubeless tyre, especially large tires, by using a nozzle ring

Info

Publication number: DK155984B
Application number: DK556584A
Authority: DK
Inventors: Arne Hjort-Hansen
Original assignee: Hjort Hansen Arne
Priority date: 1984-11-22
Filing date: 1984-11-22
Publication date: 1989-06-12
Also published as: DK155984C; DK556584D0; DK556584A; DE8532926U1

Abstract

Support equipment for use in the inflation of a tubeless tyre, especially large tires, using a nozzle ring (20), involves a safety-cage, which is designed to receive a wheel (4) which is in a free standing and enclosed position, where a nozzle ring (20) installed in the cage, by the help of a motion apparatus (14,22), can be induced to press against the side of the enclosed wheel (4) and thereby nudge this into an engaged position with the side of the cage (10). When there is proper manoeuvring of the wheel, this corresponds to the conventional usage of the nozzle ring (20), when this is pressed against the side of the tyre when the wheel is lying on the ground, but here one avoids either having to lay the wheel down or raise it up again, as well as the fact that inflation can take place in a safety cage.<IMAGE>

Description

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Den foreliggende opfindelse angår hjælpeudstyr indbefattende en dysering til brug ved oppumpning af slangeløse dæk, navnlig store dæk.The present invention relates to auxiliary equipment including a nozzle for use in inflating tubeless tires, in particular large tires.

Ved oppumpning af slangeløse dæk kan forekomme det 5 problem, at dæksiderne fra starten ikke slutter tæt til fælgrandene ud imod disse, således at den indpumpede luft blot undviger uden at opbygge noget tryk.When inflating tubeless tires, there may be a problem that from the start, the tire sides do not close close to the rim edges towards them, so that the inflated air simply avoids without building up any pressure.

Det er dog kendt, at denne uheldighed kan modvirkes ved, at man lægger hjulet på gulvet med fælgens udadbuede 10 side nedad, hvorved dækket lægger sig an mod den nedre fælgkant, hvorefter man på den øvre dækside anbringer en særlig dysering, som er afpasset efter fælgstørrelsen og lige netop kan passere ind over fælgranden. I denne ring findes et antal skråtstillede dysehuller, der kan 15 blæse trykluft ind mod det område, hvor utætheden langs dæksidens rand vil forekomme. Når der sættes trykluft på dyseringen dannes der herved en trykluftspærring mod udtrædningen af indpumpningsluften, ligesom der endog kan trænge trykluft ind i dækket, og der kan 20 herved inde i dækket opbygges et tryk, der er stort nok til at trykke den øvre dækside op til tætning mod fælgranden, hvorefter dyseringen kan fjernes.However, it is known that this misfortune can be counteracted by placing the wheel on the floor with the rim 10 outwardly bent downwards, whereby the tire abuts the lower rim edge, whereupon a special nozzle is fitted which is adapted to the rim size and can just pass over the rim. In this ring there are a number of inclined nozzle holes which can blow compressed air into the area where the leakage along the edge of the tire side will occur. When compressed air is applied to the nozzle, a compressed air barrier is formed against the discharge of the pumping air, and even compressed air can enter the tire, and a pressure large enough to pressurize the upper tire up to seal to the rim, after which the nozzle can be removed.

Dyseringen, som håndteres manuelt, er et effektivt hjælpemiddel, men arbejdet er dog på visse punkter 25 besværligt, og det kun vanskeligt udføres i et lille sikkerhedsbur med de almindeligvis anvendte dimensioner.The manual handling nozzle is an effective aid, but at some points the work is laborious and it is only difficult to do in a small safety cage with the commonly used dimensions.

Opfindelsen har til formål at angive et udstyr eller apparat, ved hvis hjælp arbejdet kan udføres på både lettere og sikrere måde.The invention has for its object to provide an equipment or apparatus by means of which the work can be performed in an easier and more secure way.

30 Udstyret ifølge opfindelsen omfatter et sikkerhedsbur indrettet til modtagelse af et hjul i stående, indrullet stilling og forsynet med en dysering, som er lejret i 2The equipment according to the invention comprises a safety cage adapted to receive a wheel in a standing, rolled-up position and provided with a nozzle which is stored in 2

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lodret plan og sidebevægelig i forhold til en modstående anlægsdel for den centrale udbulende del af hjulfælgen. Der kan findes bevægeorganer til antrykning af dyseringen mod dæksiden ved den ene side af hjulet og 5 antrykning af den anden side af hjulet mod anlægsdelen, som fortrinsvis kan udgøres af en sidedel af buret.vertical plane and laterally movable relative to an opposing abutment portion of the central bulging portion of the wheel rim. Moving means may be provided for pressing the nozzle against the tire side at one side of the wheel and pressing the other side of the wheel against the abutment portion, which may preferably be a side portion of the cage.

Ved udstyret ifølge opfindelsen opnås den væsentlige fordel, at man ved den manuelle håndtering af hjulet ikke skal lægge dette ned, men kan opretholde det i 10 den rullestilling, det iøvrigt holdes i under den manuelle flytning. Tilsvarende - og vel endnu vigtigere - skal man efter oppumpningen ikke rejse hjulet, idet det kan rulles direkte fra buret ud til den vogn, det skal monteres på, eller til midlertidig henstand 15 i stående stilling. Virkningen af dyseringen vil være den samme som ved den kendte anvendelse i liggende stilling, idet man ved indrulningen af hjulet i sikkerhedsburet blot skal sørge for at vende hjulet rigtigt, således at den udbulede fælgside vendes mod det nævnte 20 anslag, henholdsvis ud mod den burside, som hjulet trykkes imod. Antrykningen af hjulet - svarende til dettes anlæg mod gulvet i den liggende stilling - kan udvirkes ved hjælp af ringdysen, idet hjulet i buret kan være centrerende understøttet på et par bærestænger, 25 langs hvilke hjulet er let tværforskydeligt.In the equipment according to the invention, the essential advantage is obtained that, in the manual handling of the wheel, this is not to be put down, but can be maintained in the rolling position in which it is otherwise maintained during the manual movement. Similarly - and more importantly - after the pumping, do not raise the wheel, as it can be rolled directly from the cage to the carriage to which it is to be mounted, or to the temporary stand 15 in the standing position. The effect of the nozzle will be the same as in the known application in the supine position, in that when rolling the wheel in the safety cage it is only necessary to turn the wheel correctly, so that the bulged rim side faces the said abutment or towards the cage side respectively. against which the wheel is pressed. The pressing of the wheel - similar to its abutment against the floor in the supine position - can be effected by means of the ring nozzle, the wheel in the cage being centrally supported on a pair of supporting rods along which the wheel is easily transverse.

Desuden er det selvsagt en væsentlig fordel, at oppumpning^. af dækket ved opfindelsen kan foregå i et sikkerhedsbur, uden at dette bur behøver at være væsentligt større end hjulet.Furthermore, it is of course a significant advantage that inflating ^. the tire of the invention may be provided in a safety cage without this cage having to be substantially larger than the wheel.

30 Opfindelsen forklares i det følgende nærmere under henvisning til tegningen, på hvilken fig. 1 er et perspektivbillede af et dækoppumpningsbur ifølge opfindelsen, i 3The invention will now be explained in more detail with reference to the drawing, in which: 1 is a perspective view of a tire inflating cage according to the invention, in 3

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og fig. 2 et plant billede af samme/ set forfra under oppumpning af et hjul.and FIG. 2 shows a plan view of the same / seen from the front while inflating a wheel.

Det viste bur er opbygget som et burskelet med ståltrådsnet på sidefladerne. Buret har ved sin forside et par 5 åbnelige låger 2, gennem hvilke et hjul 4 eller rettere to hjul 4 kan indrulles i buret. Ved bunden af buret er anbragt et par tværgående bærestænger 6, som er let hævede over burbunden, og som mulliggør/ at et eller to indrullede hjul 4 kan stå i en centreret stilling på 10 disse stænger. Det enkelte hjul 4 indrulles med en sådan orientering, at dets udbulende fælgområde 8 vender udad mod den nærmestiiggende sidevæg af buret. Ved hver af disse sidevægge er anbragt et par lodrette afstivningsribber 10, som er let indragende i buret, og som vil dan-15 ne anslag for det udbulende fælgområde 8, hvis eller når hjulet trykkes ud mod den pågældende burside, jvf. fig. 2. Disse ribber er dog ikke strengt nødvendige, da hjulets tryk mod væggene ikke behøver at være særligt store.The cage shown is constructed as a cage skeleton with steel wire mesh on the side surfaces. The cage has at its front a pair of 5 open gates 2 through which a wheel 4 or rather two wheels 4 can be rolled into the cage. At the bottom of the cage are arranged a pair of transverse supporting rods 6 which are slightly raised above the cage floor and which allow one or two rolled wheels 4 to stand in a centered position on these rods. The individual wheel 4 is rolled in such an orientation that its bulging rim region 8 faces outwards against the adjacent side wall of the cage. At each of these side walls are arranged a pair of vertical stiffening ribs 10 which are slightly projecting into the cage and which will form a stop for the bulging rim area 8 if or when the wheel is pushed out towards the relevant cage side, cf. 2. However, these ribs are not strictly necessary, as the pressure of the wheel against the walls need not be very great.

På burets overside er anbragt en tværgående føring 12 20 for et aggregat omfattende en føringsblok 14, et overliggende hus 16, og en nedragende rør- og stangforbindelse 18 til en dysering 20. Føringsblokken 14 er i drivforbindelse med en spindel 22, som ved hjælp af en motor 24 kan drejes til fremførsel af trykluft til både ringdysen 25 20 og en ikke vist lufttilførselsslange til forbindelse med luftindpumpningsventilen på hjulet 4.On the upper side of the cage is arranged a transverse guide 12 20 for an assembly comprising a guide block 14, an overlying housing 16, and a downwardly extending pipe and rod connection 18 for a nozzle 20. The guide block 14 is in drive communication with a spindle 22, which a motor 24 can be rotated to supply compressed air to both the ring nozzle 25 20 and an air supply hose not shown to connect to the air inflating valve on the wheel 4.

Efter at denne lufttilførselsslange er tilsluttet hjulets indpumpningsventil lukkes dørene 2, og motoren 24 aktiveres til tværgående bevægelse af aggregatet 14, 16, 18, 20 30 på en sådan måde, at dyseringen 20 trykker det indrullede hjul 4 ud imod den nærliggende sidevæg af buret, således at hjulets udstående fælgdel 8 vil blive trykket imodAfter this air supply hose is connected to the impeller valve of the wheel, the doors 2 are closed and the motor 24 is actuated for transverse movement of the assembly 14, 16, 18, 20 30 in such a way that the nozzle 20 pushes the reeled wheel 4 against the adjacent side wall of the cage. so that the protruding rim portion 8 of the wheel will be pressed against

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4 ribberne 10 ved en tilhørende sideforskydning af hjulet langs bærestængerne 6. Herefter udføres oppumpningen, der som nævnt vil foregå på ganske samme måde som ved oppumpning af et på gulvet liggende hjul, dog nu med 5 dyseringen 20 fastholdt mekanisk og med hjulet indeholdt i et sikkerhedsbur, som det kan rulles ind i og ud af.4 the ribs 10 with a corresponding lateral displacement of the wheel along the supporting rods 6. Thereafter, the pumping is carried out, as mentioned, in the same way as with the pumping of a wheel lying on the floor, but now with the nozzle 20 held mechanically and with the wheel contained in a security cage that it can be rolled into and out of.

Som vist er buret indrettet til at kunne optage to hjul ad gangen, nemlig et på hver side af dyseringen. Der kun-10 ne udmærket findes to selvstændigt eller samtidigt bevægede dyseringe til disse hjul, men i praksis foretrækkes det at benytte et par sammenbyggede dyseringe, der bringes til at betjene først det ene og så det andet hjul. Ringene har hver sin lufttilførselsslange, og deres dyser er naturlig-15 vis skråtstillede til modstående sider.As shown, the cage is arranged to accommodate two wheels at a time, one on each side of the nozzle. There are very well two independently or simultaneously moving nozzles for these wheels, but in practice it is preferable to use a pair of assembled nozzles which are brought to operate first one and then the other wheel. The rings each have their own air supply hose, and their nozzles are naturally inclined to opposite sides.

Dyseringen bør naturligvis være udskiftelig med andre dyseringe i centrerede stillinger i forhold til de forskellige hjulstørrelser, da man i hvert fald til værkstedsbrug vanskeligt kan arbejde med forskellige bure til 20 de forskellige hjulstørrelser.The nozzle should of course be interchangeable with other nozzles in centered positions in relation to the different wheel sizes, since at least for workshop use it is difficult to work with different cages for the different wheel sizes.

Det skal nævnes, at man eventuelt kan bringe dyseringen i den konkrete stilling i forhold til hjulet ved hjælp af en trykplade, der ligger an mod fælgens udbulende, centrale del.It should be mentioned that it is possible to bring the nozzle into the concrete position relative to the wheel by means of a pressure plate which abuts the bulging central part of the rim.

25 Føringssystemet for dyseringen eller den nævnte trykplade kan evt. være anbragt ved burets bagside eller ved faste installationer endog nede under gulvet.The guide system for the nozzle or the said pressure plate may be used. be placed at the back of the cage or at fixed installations even below the floor.

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Claims

DK 155984 B PATENT REQUIREMENT: Auxiliary equipment for use in inflating tubeless tires, especially large tires, using a nozzle, characterized by a safety burner, which is arranged to receive at least one wheel in 5 upright, rolled-up position and provided with a nozzle which is mounted in a vertical plane and is laterally movable relative to an opposing abutment portion of the central bulging portion of the wheel rim.