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DE20312862U1 - Steering alignment measuring device for bicycle, uses e.g. laser pointer attached to pedal axle to create theoretical reference plane perpendicular to pedal axle - Google Patents

Steering alignment measuring device for bicycle, uses e.g. laser pointer attached to pedal axle to create theoretical reference plane perpendicular to pedal axle

Info

Publication number
DE20312862U1
DE20312862U1 DE20312862U DE20312862U DE20312862U1 DE 20312862 U1 DE20312862 U1 DE 20312862U1 DE 20312862 U DE20312862 U DE 20312862U DE 20312862 U DE20312862 U DE 20312862U DE 20312862 U1 DE20312862 U1 DE 20312862U1
Authority
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Germany
Prior art keywords
measuring device
bicycle
track
track measuring
protection
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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 - Lifetime
Application number
DE20312862U
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German (de)
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Individual
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Application filed by Individual filed Critical Individual
Priority to DE20312862U priority Critical patent/DE20312862U1/en
Publication of DE20312862U1 publication Critical patent/DE20312862U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00Measuring arrangements characterised by the use of optical techniques
    • G01B11/26Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
    • G01B11/27Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B2210/00Aspects not specifically covered by any group under G01B, e.g. of wheel alignment, caliper-like sensors
    • G01B2210/10Wheel alignment
    • G01B2210/18Specially developed for using with motorbikes or other two-wheeled vehicles

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)

Abstract

A collimated light beam (5) is used to generate a theoretic reference plane perpendicular to the pedal-axle. The measuring device may be attached to the pedal axle in place of the pedal crank. The light beam may be produced using a conventional laser pointer (3).

Description

BeschreibungDescription

[0001] Bisher wird in der Fahrradfachwerkstatt die Spurhaltigkeit eines Fahrrades mit einer geraden Holzlatte geprüft. Dadurch kann keine Aussage über die Spurhaltigkeit des Fahrradrahmens und die Stellung der Laufräder zueinander gemacht werden. Genauere Überprüfungen können nur anhand des ausgebauten Fahrradrahmens beim Hersteller des selbigen auf einer teuren Rahmenrichtplatte durchgeführt werden. Desweiteren muß das Vorder- und das Hinterrad separat auf ihre mittige Zentrierung überprüft werden.[0001] Until now, bicycle workshops have used a straight wooden slat to check the tracking of a bicycle. This means that no statement can be made about the tracking of the bicycle frame and the position of the wheels in relation to one another. More precise checks can only be carried out by the manufacturer using the removed bicycle frame on an expensive frame straightening plate. In addition, the front and rear wheels must be checked separately for centering.

[0002] Dieses bisherige Verfahren ist sehr zeitintensiv, teuer und läßt keine zuverlässige Aussage über die Stellung beider Laufräder zueinander, was die Fahreigenschaften des Fahrrades wesentlich beeinflußt, zu.[0002] This previous method is very time-consuming, expensive and does not allow any reliable statement about the position of the two wheels in relation to each other, which significantly influences the riding characteristics of the bicycle.

[0003] Der Erfindung des Spurvermessungsgerätes für Fahrräder, nachfolgend als „Rahmenlaser" bezeichnet, liegt das Problem zugrunde, eine einfache, schnelle, kostengünstige und zuverlässige Möglichkeit zu schaffen ein Fahrrad komplett, ohne größere Demontagearbeiten, in der Fahrradwerkstatt zu vermessen und das Ergebnis zu dokumentieren, z.B. wegen eines Unfallschadens. Dies ist anhand der Fig.l und Fig.2 eingehend beschrieben.[0003] The invention of the track measuring device for bicycles, hereinafter referred to as "frame laser", is based on the problem of creating a simple, fast, cost-effective and reliable way to measure a bicycle completely in the bicycle workshop without major disassembly work and to document the result, e.g. due to accident damage. This is described in detail using Fig. 1 and Fig. 2.

[0004] Die Lösung dieser Aufgabe erfolgt durch die Merkmale von Schutzanspruch 1.[0004] This problem is solved by the features of claim 1.

[0005] Die abhängigen Ansprüche enthalten vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung.[0005] The dependent claims contain advantageous embodiments and further developments of the invention.

[0006] Der „Rahmenlaser" 1 besteht aus einer Lichtquelle 3, welche durch Betätigung eines daran befindlichen Druckschalters 3/1 einen gebündelten Lichtstrahl 5 erzeugt, und einem Grundträger 1/1 für die Aufnahme der Lichtquelle 3.[0006] The "frame laser" 1 consists of a light source 3, which generates a bundled light beam 5 by actuating a pressure switch 3/1 located thereon, and a base carrier 1/1 for receiving the light source 3.

Dieser Grundträger 1/1 ist mit einem Aufhahmeprisma 1/3 und einer darin befindlichen Justiereinrichtung 1/4 für die Lichtquelle 3 versehen, welche nach der Justage dauerhaft versiegelt wird.This base support 1/1 is provided with a receiving prism 1/3 and an adjustment device 1/4 for the light source 3, which is permanently sealed after adjustment.

Desweiteren hat der Grundträger 1/1 eine Aufnahme zur Befestigung auf der Tretlagerachse, in Fig. 2 ist das am meisten benutzte Vierkantsystem dargestellt.Furthermore, the base carrier 1/1 has a mount for attachment to the bottom bracket axle; the most commonly used square system is shown in Fig. 2.

[0007) In einem aufwendigen Verfahren wird der Lichtstrahl 5 so ausgerichtet und die Lichtquelle 3 dauerhaft fixiert, daß der Lichtstrahl 5 senkrecht zur Tretlagerachse verläuft. Die Fehlerabweichung beträgt maximal 0,5 mm pro Meter.[0007) In a complex process, the light beam 5 is aligned and the light source 3 is permanently fixed so that the light beam 5 runs perpendicular to the bottom bracket axis. The error deviation is a maximum of 0.5 mm per meter.

[0008] Der Grundträger 1/1 ist eine entsprechend umgearbeitete linke Tretkurbel.[0008] The base support 1/1 is a modified left crank.

Die Lichtquelle ist ein handelsüblicher Laserpointer mit entsprechender Lochblende zur Erzeugung eines feinen Lichtpunktes.The light source is a commercially available laser pointer with a corresponding pinhole aperture to produce a fine point of light.

[0009] Fig. 1 zeigt ein schematisiertes Fahrrad in Schrägansicht mit an der Tretlagerachse angebautem „Rahmenlaser" 1.[0009] Fig. 1 shows a schematic bicycle in oblique view with the "frame laser" 1 mounted on the bottom bracket axle.

Desweiteren sind 2 Meßvorgänge dargestellt, die jeweils den Abstand vom Laufrad 6 zu dem gebündelten Lichtstrahl 5 am Meterstab 4 zeigt.Furthermore, two measuring processes are shown, each showing the distance from the impeller 6 to the bundled light beam 5 on the meter stick 4.

[0010] Der „Rahmenlaser" 1 wird anstelle einer Tretkurbel, vorzugsweise der linken, auf der Tretlagerachse 2 befestigt.[0010] The "frame laser" 1 is attached to the bottom bracket axle 2 instead of a crank, preferably the left one.

-Nun wird der Meterstab an das Sitzrohr 7/4,unteres Drittel, angelegt und der Lichtstrahl 5 auf die Skalierung des Meterstabes 4 gerichtet, der Meßwert vom Meterstab 4 abgelesen und notiert.-Now the meter stick is placed on the seat tube 7/4, lower third, and the light beam 5 is directed onto the scale of the meter stick 4, the measured value is read from the meter stick 4 and noted.

Zu diesem Wert wird der Sitzrohrhalbmesser dazuaddiert.The seat tube radius is added to this value.

Dies ist die Entfernung vom Lichtpunkt zur Fahrradmittelebene und ist das Referenzmaß.This is the distance from the light point to the bicycle center plane and is the reference measurement.

-Jetzt kann an beliebiger Stelle des Rahmens, z.B. amSteuerrohr 7/2, am Unterrohr 7/3, an der Gabel 7.1, am Sitzrohr 7/4 oben und an den Hinterbauausfallenden 7/5 gemessen,und unter Berücksichtigung der entsprechenden Halbmesser die Abweichung zur Mittelebene des Fahrrades ermittelt werden.-Now you can measure anywhere on the frame, e.g. on the head tube 7/2, on the down tube 7/3, on the fork 7.1, on the top of the seat tube 7/4 and on the rear dropouts 7/5, and determine the deviation from the center plane of the bike, taking into account the corresponding radius.

-Durch messen an den Laufrädern in den Positionen 12:00,6:00 sowie 3:00 und 9:00, und der Berücksichtigung der halben Felgenbreite,kann die räumliche Lage der beiden Laufräder zueinander bestimmt werden.-By measuring the wheels in the positions 12:00, 6:00, 3:00 and 9:00, and taking into account half the rim width, the spatial position of the two wheels in relation to each other can be determined.

[0011] Die Halbmesser der Meßpunkte und die ermittelten Meßwerte werden in dem Spurmeßprotokoll dokumentiert.[0011] The radii of the measuring points and the measured values are documented in the track measurement protocol.

• ··

·· ti. 5 Qt · > · ··· ti. 5 Qt · > · ·

Legende zu Fig.l und Fig.2Legend to Fig.l and Fig.2

1 Spurvermessungsgerät, Fig. 1 und Fig.21 track measuring device, Fig. 1 and Fig. 2

1/1 Grundträger für Lichtquelle, Fig.2 1/2 Aufnahme für Tretlagerachse, Fig.2 1/3 Aufhahmeprisma für Lichtquelle, Fig.21/1 Base support for light source, Fig.2 1/2 Mount for bottom bracket axle, Fig.2 1/3 Mounting prism for light source, Fig.2

22 Tretlagerachse,Bottom bracket axle, Fig.lFig.l 33 Lichtquelle,light source, Fig.l und Fig.2Fig.l and Fig.2 3/13/1 Schalter für Lichtquelle,Switch for light source, Fig.2Fig.2 44 Meterstab,meter stick, Fig.lFig.l 55 gebündelter Lichtstrahl,focused light beam, Fig.l und Fig.2Fig.l and Fig.2 66 Laufrad,Wheel, FiglFigl 77 Fahrradrahmen,bicycle frame, Fig.lFig.l 7/17/1 Vorderradgabel,front fork, Fig.lFig.l 7/27/2 Steuerrohr,head tube, Fig.lFig.l 7/37/3 Unterrohr,down tube, Fig.lFig.l 7/47/4 Sitzrohr,seat tube, Fig.lFig.l 7/57/5 Hinterbauausfallende,Rear dropouts, Fig.lFig.l

Claims (9)

1. Spurvermessungsgerät 1 für Fahrräder und Fahrradrahmen, wie in Fig. 2 dargestellt, dadurch gekennzeichnet, daß, wie in Fig. 1 dargestellt mittels eines gebündelten Lichtstrahles 5 eine senkrecht zur Tretlagerachse 2 ausgerichtete theoretische Bezugsebene erzeugt wird. 1. Track measuring device 1 for bicycles and bicycle frames, as shown in Fig. 2, characterized in that, as shown in Fig. 1, a theoretical reference plane aligned perpendicular to the bottom bracket axis 2 is generated by means of a bundled light beam 5. 2. Spurvermessungsgerät 1 nach Schutzanspruch 1 dadurch gekennzeichnet, daß dies anstelle der Tretkurbel an der Tretlagerachse 2 befestigt wird. 2. Track measuring device 1 according to claim 1, characterized in that it is attached to the bottom bracket axle 2 instead of the pedal crank. 3. Spurvermessungsgerät 1 nach Schutzanspruch 1 dadurch gekennzeichnet, daß dieser gebündelte Lichtstrahl 5 durch einen handelsüblichen Laserpointer 3 erzeugt wird. 3. Track measuring device 1 according to claim 1, characterized in that this bundled light beam 5 is generated by a commercially available laser pointer 3. 4. Spurvermessungsgerät 1 nach Schutzanspruch 1 dadurch gekennzeichnet, daß der Grundträger 1/1 zur Aufnahme der Lichtquelle 3 eine handelsübliche linke Tretkurbel ist. 4. Track measuring device 1 according to claim 1, characterized in that the base support 1/1 for receiving the light source 3 is a commercially available left-hand pedal crank. 5. Spurvermessungsgerät 1 nach Schutzanspruch 4 dadurch gekennzeichnet, daß Tretkurbeln aller gebräuchlichen Tretkurbelbefestigungssysteme möglich sind, sofern die Tretlagerachse und die Tretkurbel nicht aus einem Stück gefertigt sind, sogenannte one peace crank. 5. Track measuring device 1 according to protection claim 4, characterized in that pedal cranks of all common pedal crank fastening systems are possible, provided that the bottom bracket axle and the pedal crank are not made from one piece, so-called one piece crank. 6. Spurvermessungsgerät 1 nach Schutzanspruch 4 dadurch gekennzeichnet, daß die Lichtquelle 3 auf dem Grundträger 1/1 dauerhaft verbunden und innerhalb einer Fehlerabweichung von 0,5 mm ausjustiert ist. 6. Track measuring device 1 according to protection claim 4, characterized in that the light source 3 is permanently connected to the base carrier 1/1 and is adjusted within an error deviation of 0.5 mm. 7. Spurvermessungsgerät 1 nach Schutzanspruch 1 bis 6 dadurch gekennzeichnet, daß mittels eines einfachen Meterstabes 4, der Abstand vom Lichtstrahl 5 zu den einzelnen Meßpunkten am Fahrradrahmen 7 und den Laufrädern 6, und damit die Lage der Mitte der Laufräder 6 und des Fahrradrahmenteiles ermittelt und mit der theoretischen Fahrradmittelebene verglichen werden kann, wie in Fig. 1 dargestellt. 7. Track measuring device 1 according to protection claims 1 to 6, characterized in that by means of a simple meter stick 4, the distance from the light beam 5 to the individual measuring points on the bicycle frame 7 and the wheels 6, and thus the position of the center of the wheels 6 and the bicycle frame part, can be determined and compared with the theoretical bicycle center plane, as shown in Fig. 1. 8. Spurvermessungsgerät 1 nach Schutzanspruch 1 bis 6 dadurch gekennzeichnet, daß durch die eindeutige Lagebestimmung der einzelnen Meßpunkte zur Fahrradmittelebene ein Spurmeßprotokoll erstellt werden kann. 8. Track measuring device 1 according to protection claims 1 to 6, characterized in that a track measurement protocol can be created by the clear determination of the position of the individual measuring points in relation to the bicycle center plane. 9. Spurvermessungsgerät 1 nach Schutzanspruch 1 bis 6 dadurch gekennzeichnet, daß dieses Meßwerkzeug für die Fahrradwerkstatt eine einfache und kostengünstige Möglichkeit darstellt eine präzise Aussage über die Spurgenauigkeit eines Fahrrades abgeben zu können. 9. Track measuring device 1 according to protection claims 1 to 6, characterized in that this measuring tool for the bicycle workshop represents a simple and cost-effective way of being able to make a precise statement about the tracking accuracy of a bicycle.
DE20312862U 2003-08-20 2003-08-20 Steering alignment measuring device for bicycle, uses e.g. laser pointer attached to pedal axle to create theoretical reference plane perpendicular to pedal axle Expired - Lifetime DE20312862U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE20312862U DE20312862U1 (en) 2003-08-20 2003-08-20 Steering alignment measuring device for bicycle, uses e.g. laser pointer attached to pedal axle to create theoretical reference plane perpendicular to pedal axle

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Application Number Priority Date Filing Date Title
DE20312862U DE20312862U1 (en) 2003-08-20 2003-08-20 Steering alignment measuring device for bicycle, uses e.g. laser pointer attached to pedal axle to create theoretical reference plane perpendicular to pedal axle

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DE20312862U1 true DE20312862U1 (en) 2003-11-20

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2486192A (en) * 2010-12-04 2012-06-13 Lawrence Adeokun Cycle wheel alignment device
CN103344178A (en) * 2013-06-24 2013-10-09 天津金轮自行车集团有限公司 Measuring platform of design parameters of sports bike
EP4588618A1 (en) 2024-01-22 2025-07-23 Karl A. Steinel GmbH Seat and/or track adjusting device for a two- or three-wheeled vehicle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4297031A (en) 1979-09-26 1981-10-27 Hamar M R Apparatus and process for sweeping a flat optical light plane
DE10005395A1 (en) 2000-02-07 2001-08-09 Uwe Marx Pedal crank checking device for bicycle, has optical device that receives light beam from measurement spot and provides measurement result on indicator
DE10025918A1 (en) 2000-05-26 2001-11-29 Busch Dieter & Co Prueftech Aligning device for belt pulleys has mechanical or nomographic device that computes for compensation value to correct angle of rotational axes of belt pulleys using washers
US6438855B1 (en) 2001-01-11 2002-08-27 Mark C. Bremer Portable wheel alignment system for motorcycles

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4297031A (en) 1979-09-26 1981-10-27 Hamar M R Apparatus and process for sweeping a flat optical light plane
DE10005395A1 (en) 2000-02-07 2001-08-09 Uwe Marx Pedal crank checking device for bicycle, has optical device that receives light beam from measurement spot and provides measurement result on indicator
DE10025918A1 (en) 2000-05-26 2001-11-29 Busch Dieter & Co Prueftech Aligning device for belt pulleys has mechanical or nomographic device that computes for compensation value to correct angle of rotational axes of belt pulleys using washers
US6438855B1 (en) 2001-01-11 2002-08-27 Mark C. Bremer Portable wheel alignment system for motorcycles

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2486192A (en) * 2010-12-04 2012-06-13 Lawrence Adeokun Cycle wheel alignment device
GB2486192B (en) * 2010-12-04 2015-12-30 Lawrence Adeokun Cycle wheel alignment device
CN103344178A (en) * 2013-06-24 2013-10-09 天津金轮自行车集团有限公司 Measuring platform of design parameters of sports bike
EP4588618A1 (en) 2024-01-22 2025-07-23 Karl A. Steinel GmbH Seat and/or track adjusting device for a two- or three-wheeled vehicle

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R086 Non-binding declaration of licensing interest
R207 Utility model specification

Effective date: 20031224

R163 Identified publications notified

Effective date: 20060112

R150 Utility model maintained after payment of first maintenance fee after three years

Effective date: 20060620

R157 Lapse of ip right after 6 years

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