DK156850B - DEVICE FOR CHECKING THE PARALLELITY OF VEHICLE WHEELS - Google Patents
DEVICE FOR CHECKING THE PARALLELITY OF VEHICLE WHEELS Download PDFInfo
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- DK156850B DK156850B DK248479AA DK248479A DK156850B DK 156850 B DK156850 B DK 156850B DK 248479A A DK248479A A DK 248479AA DK 248479 A DK248479 A DK 248479A DK 156850 B DK156850 B DK 156850B
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- DK
- Denmark
- Prior art keywords
- arm
- drum
- arms
- parallelism
- checking
- Prior art date
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- 210000003161 choroid Anatomy 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B11/275—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing wheel alignment
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B2210/00—Aspects not specifically covered by any group under G01B, e.g. of wheel alignment, caliper-like sensors
- G01B2210/10—Wheel alignment
- G01B2210/28—Beam projector and related sensors, camera, inclinometer or other active sensing or projecting device
- G01B2210/283—Beam projectors and related sensors
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Description
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Opfindelsen angâr et apparat til kontrol af pa-ralleliteten af et koretojs for- eller baghjul, om-fattende to arme til fastgorelse i vandret stilling pâ ydersiderne af de to hjul, der skal kontrolleres, og 5 forsynet med organer til kontrol af disses parallelitet under anvendelse af mindst ét reflekteret lysbundt.BACKGROUND OF THE INVENTION The invention relates to an apparatus for checking the parallelism of a front or rear wheel of a choroid, comprising two arms for fixing in the horizontal position on the outside of the two wheels to be checked, and provided with means for checking their parallelism below use of at least one reflected beam.
I nogle apparater af denne art bestâr de omhand-lede kontrolorganer i en projekter, der er anbragt pâ den frie ende af hver af disse vandrette arme og in-10 drettet til at projicere en lysplet pâ en skala pâ den tilsvarende ende af den anden arm. Disse to projektorer er anbragt sâledes, at de hver retter et lysbundt vin-kelret pâ den tilsvarende arms akse. Nâr de to kontrol- . lerede hjul er parallelle, vil denne lysplet, som ud-15 sendes af hver af projektorerne, falde pâ nulpunktet af skalaen pâ den tilsvarende ende af den anden arm. Hvis dette ikke er tilfældet, kan operatoren deraf udlede, at de to hjul ikke er parallelle, og han kan danne sig en forestilling om storrelsen af afvigelsen og dennes 20 retning (spidsning eller spredning) ud fra beliggenhe-den af den af hver projektor udsendte lysplet pâ skalaen pâ den modsatte arm.In some apparatus of this kind, the control means in question consist of a project placed on the free end of each of these horizontal arms and arranged to project a light spot on a scale on the corresponding end of the other arm. . These two projectors are arranged such that they each align a light beam at right angles to the axis of the corresponding arm. When the two control. taught wheels are parallel, this light spot emitted by each of the projectors will fall at the zero point of the scale on the corresponding end of the other arm. If this is not the case, the operator may deduce that the two wheels are not parallel, and he may form an idea of the magnitude of the deviation and its direction (pointing or spreading) from the location of the transmitter of each projector. light spot on the scale of the opposite arm.
Denne metode er imidlertid ikke særlig praktisk, særlig fordi den ikke tillader direkte aflæsning af 25 storrelsen af spidsnings- eller spredningsvinklen.However, this method is not very practical, especially because it does not allow direct reading of the magnitude of the point of angling or scattering.
Fra beskrivelsen til US patent nr. 4.095.902 kender man et kontrolapparat af den ovenfor angivne art, hvor der til kontrol af paralleliteten af f.eks. forhjulene anvendes to pâ hver sit forhjul monterede 30 arme med lysprojicerende organer og hvor kontrollen af parallelitet forudsætter, at i det mindste det ene af koretojets baghjul udstyres med et spejl, som benyttes til for forhjulene at etablere en referenceretning i det pâgældende baghjuls plan.From the specification of US Patent No. 4,095,902 there is known a control apparatus of the above-mentioned type, in which for checking the parallelism of e.g. the front wheels use two arms mounted on each front wheel with light-projecting means, whereby the parallelism check requires that at least one of the rear wheels of the vehicle is equipped with a mirror which is used to establish a reference direction in the plane of the rear wheel in question.
35 Apparatet ifblge opfindelsen adskiller sig fra den ovenfor nævnte kendte teknik ved, at de nævnte or- 2The apparatus according to the invention differs from the prior art mentioned in that the said
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ganer til kontrol af parallelitet er indrettede til pâ-......Parallels for checking parallelism are arranged for
montering alene pà de to hjul, der skal kontrolleres, at hver af de nævnte vandrette arme i den modsat fast-gorelsen værende ende har dels et drejeligt organ, der 5 er indrettet til at projicere eller reflektere et lys-bundt i retning mod den tilsvarende ende af den anden arm, dels en kontrolmarkering, pâ hvilken lyspletten fra projektions- eller refleksionsorganet pâ den anden arm skal falde, idet drejningen af hvert af de nævnte 10 projektions- eller refleksionsorganer er styret af en graddelt tromle, hvis nulpunkt ligger ud for et sta-tionært indeksmærke, nâr det fra det pâgældéndë organ — -udgâende lysbundt danner en ret vinkel med den pâgæl-dende arm.mounting only on the two wheels to be checked that each of said horizontal arms at the opposite end has a rotatable member 5 adapted to project or reflect a beam of light in the direction of the corresponding end of the second arm, and a check mark on which the light spot from the projection or reflection means on the other arm should fall, the rotation of each of said 10 projection or reflection means being controlled by a degree-split drum whose zero point is opposite a stationary index mark when it comes from the debenture body - outgoing light bundle forms a right angle with the arm in question.
15 Med et sâledes udformet apparat er der opnâet dels en enklere konstruktion, dels enklere kontrolope-rationer med mindsket risiko for fejlmâling.15 With such a device, a simpler design and simpler control operations with a reduced risk of error measurement have been achieved.
Nâr de to indstillingstromler er indstillet i den nævnte stilling, vil den af hver af de to kontrol-20 markeringer modtagne lysplet være beliggende pâ disse mârkeringers nulpunkt, hvis de to hjul er parallelle.When the two adjustment drums are set in said position, the light spot received by each of the two control marks will be located at the zero of these markings if the two wheels are parallel.
Hvis dette ikke er tilfældet, kan operateren heraf slutte, at hjulene har en indbyrdes spidsning eller spredning. Det er da blot nodvendigt at dreje indstil-25 lingstromlen pà hver af de to vandrette arme, indtil den tilherende lysplet falder pâ nulpunktet i den mod-stâende kontrolmarkering, og aflæse skalaen pâ hver af de to tromler ud for disses stationære nuipunktsmærke for at bestemme sterrelsen af sprednings- eller spids-30 ningsvinklen meilem de to hjul.If this is not the case, the operator may conclude that the wheels have an intersection or spread. It is then only necessary to rotate the adjusting drum on each of the two horizontal arms until the corresponding light spot falls at the zero point of the opposing control mark, and read the scale of each of the two drums next to their stationary point mark to determine the magnitude of the spread or tip angle between the two wheels.
Det foreliggende apparat muliggar sâledes en me-get let og hurtig kontrol af de to hjuls parallelitet.The present apparatus thus allows a very easy and quick check of the parallelism of the two wheels.
André ejendommeligheder og fordele ved apparatet ifolge opfindelsen vil imidlertid fremgâ af den folgen-35 de beskrivelse af et udforelseseksempel under henvis-ning til tegningen.However, the other features and advantages of the apparatus according to the invention will become apparent from the following description of an exemplary embodiment with reference to the drawing.
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Pè tegningen viser fig. 1 skematisk og i perspektiv anvendelsen af et apparat ifolge opfindelsen, fig. 2 set forfra to hjul af et k0ret0j under 5 kontrol med udeladelse af den mellemliggende del af k0-ret0jet, fig. 3 det i fig. 2 viste set fraoven, fig. 4 i perspektiv anbringelsen af den ene arm af et apparat ifelge opfindelsen pâ et k0ret0jshjul, 10 fig· 5 i storre mâlestok en del af en sédan arm, set i perspektiv, fig. 6 i sterre mâlestok et delsnit efter linien VI-VI i fig. 5, og fig. 7 skematisk og i perspektiv de til hver arm 15 horende dele.In the drawing, FIG. 1 is a diagrammatic and perspective view of the use of an apparatus according to the invention; FIG. Figure 2 is a front view of two wheels of a vehicle under control with omission of the intermediate part of the vehicle; 3 shows the embodiment of FIG. 2 from above; FIG. 4 is a perspective view of the position of one arm of an apparatus according to the invention on a vehicle wheel; FIG. 5 is a larger scale view of a portion of such an arm; 6 in a larger scale, a partial section along line VI-VI in fig. 5, and FIG. 7 schematically and in perspective the parts belonging to each arm 15.
Som allerede nævnt omfatter apparatet i den viste udforelse to kontrolarme la og lb, der skal fastgores i vandret stilling pâ ydersiden af hver sit af to hjul 2a og 2b, som horer til samme koretojs-20 aksel, og hvis parallelitet skal kontrolleres, f.eks. forakslen som vist i fig. 1. Ved den ene ende er hver af disse arme forsynet med eller fast forbundet med den nederste ende af en knægt 3, der kan fastgores imod ydersiden af kanten af fælgen pâ et hjul ved hjælp af 25 egnede fastgorelsesorganer, f.eks. arme 4, der kan ligge an mod kanten af fælgen eller hægtes fast pâ denne.As already mentioned, the apparatus of the embodiment shown comprises two control arms 1a and 1b, which are to be fixed in the horizontal position on the outside of each of two wheels 2a and 2b, which belong to the same shaft-axle and whose parallelism must be checked, f. eg. the front axle as shown in FIG. 1. At one end, each of these arms is provided with or firmly connected to the lower end of a jaw 3 which can be secured against the outside of the rim of the rim of a wheel by means of suitable fastening means, e.g. arms 4, which may abut against the rim of the rim or be fastened to it.
Armene la og lb er fastgjort pâ en sâdan mâ-de, at de forlober vandret hen imod og forbi den pâgæl-30 dende ende af koretojet, i det foreliggende tilfælde altsâ dettes forende, da det er forhjulene, der her skal kontrolleres. De forreste ender 5 af disse to arme er altsâ beliggende foran de to hjul, der skal kontrolleres, og i et niveau, som ligger lavere end k0-35 retojets châssis.The arms 1a and 1b are fixed in such a way that they extend horizontally towards and past the respective end of the choroid, in the present case its front end, since it is the front wheels to be checked here. The front ends 5 of these two arms are thus located in front of the two wheels to be checked and at a level lower than the k0-35 reto chassis.
I den forreste frie ende 5 har begge armene la og lb et spejl, henholdsvis 6a og 6b, der er 4At the front free end 5, both arms 1a and 1b have a mirror, 6a and 6b, respectively, 4
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drejeligt om en lodret akse. I hvilestillingen er dette spejl orienteret under 45° med den tilherende arms akse, sâ at det retter et lysbundt udgâende fra en pro-jektor 7 anbragt længere tilbage i samme arm over 5 imod den tilsvarende ende af den modstâende arm.rotatable about a vertical axis. In the resting position, this mirror is oriented below 45 ° with the axis of the associated arm so that it directs a beam of light from a projector 7 positioned further back in the same arm above 5 toward the corresponding end of the opposing arm.
De to arme kan bestâ af et metalprofil, f.eks. et ror med kvadratisk eller rektangulært tværsnit som vist pâ tegningen. I sâ fald er bâde projektoren 7 og det tilherende spejl 6a eller 6b beliggende inden i 10 dette rer, sâledes at disse dele er godt beskyttet mod ydre pâvirkninger. Der er udskâret en âbning 8 i den indâd" vend ende sideflade af den frie ende af hver arm til passage af det af spejlene 6a og 6b reflektere-de lysbundt.The two arms may consist of a metal profile, e.g. a tube of square or rectangular cross-section as shown in the drawing. In that case, both the projector 7 and the associated mirror 6a or 6b are located within this tube so that these parts are well protected from external influences. An aperture 8 is cut into the inner side facing surface of the free end of each arm for passage of the light beam reflected by the mirrors 6a and 6b.
15 Hver af spejlene bæres af en lodret, drejelig aksel 9, til hvilken den ene ende af en svingarm 10 er fastgjort, sâledes at denne svingarm ligger uden for den tilhorende apparatarm, men er indesluttet i et bes-kyttelseshus 11. Den modsatte ende af denne svingarm 20 er beliggende imellem en fjeder 12 og en trykskrue 13, som er ud i ét med en betj eningstromle 14. Ved drejning af denne tromle i den ene eller den anden ret-ning er det altsâ muligt at bringe det tilhorende spejl 6a eller 6b til at dreje sig den ene eller den anden 25 vej i retning af pilene Fx og F2 i fig. 6.Each of the mirrors is supported by a vertical, rotatable shaft 9, to which one end of a pivot arm 10 is secured, so that this pivot arm is outside the associated apparatus arm, but is enclosed in a guard housing 11. The opposite end of the this pivot arm 20 is located between a spring 12 and a pressure screw 13 which integrate with an actuating drum 14. By turning this drum in one or the other direction it is thus possible to bring the corresponding mirror 6a or 6b to rotate one or the other direction in the direction of arrows Fx and F2 in FIG. 6th
Tromlen 14 bærer en skaladeling, der bevæger sig ud for et stationært, ikke vist indeksmærke. Arran-gementet er sâledes, at det tilherende spejl 6a eller 6b, nâr skalainddelingens nulpunkt stâr ud for det 30 stationære indeksmærke, er orienteret under nojagtig 45° med apparatarmens akse, sâ at det af det pâgældende spejl reflekterede lysbundt er rettet under nojagtig 90e i forhold til armen.The drum 14 carries a scale partitioning off a stationary index mark not shown. The arrangement is such that the corresponding mirror 6a or 6b, when the zero point of the scale divides the stationary index mark, is oriented below exactly 45 ° with the axis of the apparatus arm so that the light beam reflected by the mirror in question is directed below exactly 90e in relationship with the arm.
Ved siden af hver af bet j eningstromlerne 14 35 findes en anden tromle 15, der imidlertid er lejret frit i stedet for at være koblet til trykskruen 13 5Next to each of the actuating drums 14 35 there is a second drum 15, which is, however, mounted freely instead of being connected to the pressure screw 13 5
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ligesom betjeningstromlen 14. Betydningen og anven-delsen af denne anden tromle vil fremgâ af den falgende beskrivelse af en anvendelsesmâde for det foreliggende apparat.just like the operating drum 14. The significance and use of this second drum will be apparent from the following description of a method of use of the present apparatus.
5 Hvert af beskyttelseshusene 11 er udformet med en âbning 16 ud for gennembrydningen 8 i den frie ende af den tilsvarende arm la og 1b.Each of the guard housings 11 is formed with an opening 16 next to the breakthrough 8 at the free end of the corresponding arm 1a and 1b.
Oven over denne âbning har hvert hus imidlertid en âbning beliggende ud for en kontrolmarkering 17 pâ 10 den tilsvarende arm, hvilken markering kan bestâ af en simpel lodret referencestreg, men der findes dog for-trinsvis en eller flere lodrette referencestreger pâ begge sider af denne centrale referencestreg.Above this opening, however, each housing has an opening adjacent to a check mark 17 on 10 the corresponding arm, which mark may consist of a simple vertical reference line, but preferably one or more vertical reference lines exist on both sides of this central reference line.
Kontrol af paralleliteten af to hjul pâ en aksel 15 ved hjælp af det foreliggende apparat foregâr pâ fol-gende màde.Checking the parallelism of two wheels on a shaft 15 by means of the present apparatus is carried out as follows.
Efter at de to kontrolarme la og lb er an-bragt og fastgjort som vist i fig. 1 og efter at deres nejagtige vandrette stilling er kontrolleret, indstil-20 les hver af betjeningstromlerne i den stilling, hvor deres skalanulpunkt befinder sig ud for det stationære referencemærke. Hvis den af hvert spejl 6a eller 6b udsendte lysplet nu falder pâ den centrale referencestreg pâ markeringen 17 pâ den modsatte arm, er de to 25 kontrollerede hjul nojagtigt parallelle. Det skal be-mærkes, at kontrollens nejagtighed skyldes, at der i eller foran hver af projektorerne 7 findes en lodret streg, sâledes at det er dennes billede, der skal falde pâ den centrale referencestreg i markeringen pâ den 30 modsatte arm.After the two control arms 1a and 1b are positioned and secured as shown in FIG. 1 and after checking their exact horizontal position, each of the operating drums is set to the position where their scale needle point is off the stationary reference mark. If the light spot emitted by each mirror 6a or 6b now falls on the central reference line of the mark 17 on the opposite arm, the two 25 controlled wheels are exactly parallel. It should be noted that the accuracy of the control is due to the fact that there is a vertical line in or in front of each of the projectors 7, so that it is his image that must fall on the central reference line in the mark on the 30 opposite arm.
Hvis dette ikke er tilfældet, mâ operatoren dre-je tromlen 14 pâ den ene arm indtil det fra denne arm udgâende lysbundt falder pâ den centrale referencestreg i markeringen pâ den modsatte arm. Nâr dette er opnâet, 35 aflæser operatoren skalaen pâ den pâgældende tromle ud for dennes stationære markering.If this is not the case, the operator must rotate the drum 14 on one arm until the light beam originating from that arm falls on the central reference line in the mark on the opposite arm. When this is achieved, the operator reads the scale of the current drum next to its stationary mark.
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Derefter foretages samme operation pâ den anden arm, og de to aflæste værdier lægges sammen. Skalaerne pà de to tromler 14 er udfort sâledes, at de direkte angiver storrelsen af spidsning- eller spidsningsvink-5 len imellem de to arme og falgelig imellem de to hjul.Then the same operation is performed on the other arm and the two read values are added together. The scales on the two drums 14 are designed to directly indicate the magnitude of the point of angle or point between the two arms and, consequently, between the two wheels.
Til undgâelse af sammenlægningen af de to aflæste værdier fra tromlerne 14 er det muligt at anvende de to dertil herende fri tromler 15. Disse fri tromler har imidlertid ogsâ til formâl at muliggore aflæs-10 ning af variationer i paralleliteten hjul for hjul som funktion af nedtrykningen af fj edersystemet ved visse arter af kéretejer. I nogle koretejer vil variation af . sammentrykningen af fj edersystemet nemlig medfore variation af hjulenes parallelitet. Disse variationer bor 15 imidlertid holdes inden for en vis tolerancegrænse, og dette ber underseges under kontrol af koretojet.In order to avoid the merging of the two values read from the drums 14, it is possible to use the two associated free drums 15. However, these free drums also have the purpose of enabling readings of variations in wheel-to-wheel parallelism as a function of depression. of the spring system of certain species of caretakers. In some choir owners, variation of. the compression of the spring system namely the variation of the parallelism of the wheels. However, these variations should be kept within a certain tolerance limit and this should be investigated under the control of the choroid.
Med dette formâl foretages der ad kunstig vej en nedspænding af fjedersystemet og hjulophængningen til den laveste stilling ved nedtrykning, og de fra hver 20 arm udgâende lysbundter bringes til at falde pâ den faste referencestreg i den modstâende markering ved drej-ning af tromlerne 14 i den ene eller den anden ret-ning. Nâr dette er gjort, indstilles de to fri tromler med deres nulmærke ud for den samme stationære marke-25 ring. Nâr fjedersystemet og hjulophængningen derefter er frigivet og indtager sin hojeste stilling, drejes de to tromler 14 pâ ny, sâ at lysbundterne igen f aider sammen med den centrale markeringsstreg i de to refe-rencemarkeringer. Ved aflæsning af skalaen pâ hver af 30 de frie tromler 15 ud for det tilhorende stationære indeksmærke fâs straks forskellen i retning af hvert hjul imellem de to tilsvarende positioner af ophæng-ningen. Pâ samme mâde kan det kontrolleres, om forskellen ligger inden for de af konstruktoren opgivne tole-35 rancer. Hvis dette ikke er tilfældet, kan fejlen af-hjælpes under anvendelse af konstruktorens instruktio- 7With this purpose, the spring system and the wheel suspension are artificially clamped to the lowest position by depression, and the light bundles emanating from each 20 arm are caused to fall on the fixed reference line in the opposing mark by turning the drums 14 in the one or the other direction. When this is done, the two free drums with their zero mark are set next to the same stationary marking ring. When the spring system and the wheel suspension are then released and occupy their highest position, the two drums 14 are rotated again so that the light bundles again coincide with the central marking line in the two reference markings. When reading the scale on each of the 30 free drums 15 next to the corresponding stationary index mark, the difference in direction of each wheel between the two corresponding positions of the suspension is immediately obtained. In the same way, it can be checked whether the difference is within the tolerances specified by the constructor. If this is not the case, the error can be remedied using the constructor's instruction
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ner. Det kan derefter umiddelbart pâ ny kontrolleres, om fejlen er blevet afhjulpet, ved anvendelse af appa-ratet ifelge opfindelsen.NER. It is then immediately possible to check again whether the error has been rectified, using the apparatus according to the invention.
Det skal i denne forbindelse bemærkes, at appa-5 ratet ligeledes muliggor overvâgning af de til afhjælp-ning af en parallelitetsfejl tjenende operationer. Ope-ratoren kan ved at holde apparatet i gang under regule-ringen af hjulenes parallelitet straks se, nér paralle-litetsfejlen er afhjulpet.In this connection, it should be noted that the apparatus also allows monitoring of the operations that serve to rectify a parallelism error. By operating the apparatus during the control of the parallelism of the wheels, the operator can immediately see when the parallel error has been rectified.
10 Som allerede nævnt bestàr det foreliggende appa rats vigtigste fordel fremfor de tidligere kendte appa-rater i dets enkelhed og i, at operatoren direkte kan aflæse sterrelsen af sprednings- eller spidsningsvink-len ved manglende parallelitet, hvilket opnâs uden ri-15 siko for fejl.10 As already mentioned, the main advantage of the present device over the prior art devices lies in its simplicity and in that the operator can directly read the magnitude of the scattering or pointing angle by non-parallelism, which is obtained without risk of error. .
Det er imidlertid klart, at det foreliggende apparat kan modificeres pâ forskellige mâder og fremstil-les i forskellige udforelsesformer. Sâledes kan der i stedet for en fast projektor i forbindelse med et dre-20 jeligt spejl pâ hver arm være anbragt en drejelig pro-jektor i stedet for spejlet 6a og 6b. Der kan med dette arrangement opnâs samme résultat som ved den be-skrevne udforelsesform. Det vil i ovrigt være muligt at anvende de ved betjening af tromlerne 14 opnâede in-25 dikatiôriér pâ forskellige mâder. Tromlerne kan f.eks. være forbundet med potentiomètre, der er indskudt i elektriske kredsleb med indikatorer, der angiver ampli-tuden i variationerne i tromlernes indstilling. I sâ fald er de pâ disse mâleapparater værende skalaer na-30 turligvis indrettet til direkte at angive storrelsen af spidsnings- eller spredningsvinklen mellem de to van-drette kontrolarme.It is to be understood, however, that the present apparatus may be modified in various ways and manufactured in various embodiments. Thus, instead of a fixed projector in conjunction with a swivel mirror on each arm, a swivel projector may be arranged in place of the mirror 6a and 6b. With this arrangement, the same result can be obtained as in the described embodiment. In addition, it will be possible to use the inaccuracies obtained by operating the drums 14 in various ways. The drums can e.g. be connected to potentiometers inserted into electrical circuits with indicators indicating the amplitude of the variations in the setting of the drums. In that case, the scales present on these measuring devices are of course arranged to directly indicate the magnitude of the point of angling or spreading between the two watered control arms.
Endelig kan det beskrevne anvendes i forbindelse med andre mâle- eller kontrolapparater bestemt til 35 fastgorelse pâ de to hjul pâ en koretojsakse, f.eks.Finally, the disclosed can be used in conjunction with other measuring or control apparatus intended for attachment to the two wheels of a coreto-shaft, e.g.
Claims (6)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7818804 | 1978-06-23 | ||
| FR7818804A FR2429413A1 (en) | 1978-06-23 | 1978-06-23 | APPARATUS FOR PARALLELISM CONTROL OF VEHICLE WHEELS |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DK248479A DK248479A (en) | 1979-12-24 |
| DK156850B true DK156850B (en) | 1989-10-09 |
| DK156850C DK156850C (en) | 1990-02-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK248479A DK156850C (en) | 1978-06-23 | 1979-06-14 | DEVICE FOR CHECKING THE PARALLELITY OF VEHICLE WHEELS |
Country Status (6)
| Country | Link |
|---|---|
| DE (1) | DE2924743A1 (en) |
| DK (1) | DK156850C (en) |
| ES (1) | ES481487A1 (en) |
| FR (1) | FR2429413A1 (en) |
| GB (1) | GB2023853B (en) |
| IT (1) | IT1162646B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2494839A1 (en) * | 1980-11-21 | 1982-05-28 | Facom | APPARATUS FOR MONITORING THE GEOMETRY OF THE WHEELS OF A VEHICLE |
| FR2507768A2 (en) * | 1981-06-10 | 1982-12-17 | Facom | Vehicle steering geometry checking arrangement - has tubular rule inside which beam is projected onto unitary mirror which is articulated or movable for deflection onto screen |
| GB2210467A (en) * | 1987-09-25 | 1989-06-07 | Garage Equip Maintenance | Alignment gauge |
| FR2769365B1 (en) * | 1997-10-08 | 2000-01-28 | Muller Bem | LASER GEOMETRY MONITORING DEVICE |
| CN106643501B (en) * | 2016-12-28 | 2019-05-21 | 中国科学院长春光学精密机械与物理研究所 | A kind of light curtain target building system and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB455440A (en) * | 1935-05-21 | 1936-10-21 | Dunlop Rubber Co | Improvements in testing wheel alignment |
| DE2505293A1 (en) * | 1974-02-09 | 1975-08-14 | Dunlop Ltd | WHEEL ALIGNMENT TESTER |
| DE2512567A1 (en) * | 1974-03-21 | 1975-12-04 | Dunlop Ltd | WHEEL TRACK TESTER |
| US3953134A (en) * | 1974-09-23 | 1976-04-27 | Ammco Tools, Inc. | Automotive wheel alignment instrument |
| US4095902A (en) * | 1976-03-01 | 1978-06-20 | Applied Power Inc. | Automobile wheel alignment device and method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2608000A (en) * | 1945-07-07 | 1952-08-26 | Wheel Aligning Necessities Inc | Wheel gauge |
| US3307263A (en) * | 1964-06-25 | 1967-03-07 | Wheel Aligning Necessities Inc | Toe-in gauge |
| US3337961A (en) * | 1965-04-30 | 1967-08-29 | George M Holub | Wheel checking instrument |
| US3865492A (en) * | 1972-03-15 | 1975-02-11 | Bear Manufacturing Corp | Apparatus for use in aligning wheels |
| SE393464B (en) * | 1975-07-25 | 1977-05-09 | Samefa Ab | DEVICE FOR COMPENSATION OF ADJUSTMENT AND / OR ANGLE ERROR OF AN OPTICAL PRISMA |
| FR2381993A1 (en) * | 1977-02-23 | 1978-09-22 | Skoknic Bosko | Tracking angles checking equipment for road vehicle - has two separate parts fitted to wheels and optical measuring device for angles |
-
1978
- 1978-06-23 FR FR7818804A patent/FR2429413A1/en active Granted
-
1979
- 1979-06-12 ES ES481487A patent/ES481487A1/en not_active Expired
- 1979-06-14 DK DK248479A patent/DK156850C/en not_active IP Right Cessation
- 1979-06-20 GB GB7921525A patent/GB2023853B/en not_active Expired
- 1979-06-20 DE DE19792924743 patent/DE2924743A1/en active Granted
- 1979-06-22 IT IT49518/79A patent/IT1162646B/en active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB455440A (en) * | 1935-05-21 | 1936-10-21 | Dunlop Rubber Co | Improvements in testing wheel alignment |
| DE2505293A1 (en) * | 1974-02-09 | 1975-08-14 | Dunlop Ltd | WHEEL ALIGNMENT TESTER |
| DE2512567A1 (en) * | 1974-03-21 | 1975-12-04 | Dunlop Ltd | WHEEL TRACK TESTER |
| US3953134A (en) * | 1974-09-23 | 1976-04-27 | Ammco Tools, Inc. | Automotive wheel alignment instrument |
| US4095902A (en) * | 1976-03-01 | 1978-06-20 | Applied Power Inc. | Automobile wheel alignment device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2023853B (en) | 1983-02-02 |
| DK248479A (en) | 1979-12-24 |
| DK156850C (en) | 1990-02-26 |
| FR2429413A1 (en) | 1980-01-18 |
| FR2429413B1 (en) | 1984-01-27 |
| IT7949518A0 (en) | 1979-06-22 |
| ES481487A1 (en) | 1980-01-16 |
| DE2924743C2 (en) | 1990-01-11 |
| DE2924743A1 (en) | 1980-01-10 |
| IT1162646B (en) | 1987-04-01 |
| GB2023853A (en) | 1980-01-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PBP | Patent lapsed |