Context
- cargo bikes overview, a "longjohn"-type cargo bike
- has 2 wheels (1st column) and the load is placed in front of the rider, as low as possible, with the front wheel further forward
- all types of load are known to have been successfully transported with longjohns (therefore there is one longjohn icon in each not-empty cell of the 1st column)
- longjohns are probably the most common type of cargo bikes
- they are described and discussed at the following pages: en.wikipedia, de.wikipedia, longjohn.org
- they tend to benefit from the following advantages:
- low center of gravity
- good handling and moderate weight
- moderate length and especially width
- load is easily visible by rider
- transmission is the same as for a normal bicycle
- they may suffer from the following drawbacks:
- steering is achieved through a mechanism that adds complexity (and price) compared to cargo bikes types such as long tail
- load size is somehow limited
- load weight is limited compared to vehicles with 3 wheels or more (due to resistance and also to the lack of inherent stability)
- Werkstatt Lastenrad is a German organization (and they have a "product" called Long André):
- "Knowledge common around the subject of DIY cargo bikes"
- these pages may be partially translated at some point: FAQ, What it's about
- André Frieboese, a member from Berlin, is the Long André's father (you can see him on pictures, he has long sideburns)
- This is not a typical Hackerspace project, but more a typical project for the very young UCmakerspace.
Description
- Building a long john-type cargo bike according to these (links from werkstatt-lastenrad.de):
- illustration-rich "A6 cards" PDF document (German)
- original construction manual (German)
- French description, translation ongoing (content is roughly that of the "A6 cards" PDF document)
- Making roadworthy vehicles is delicate enough not to improvise too much at first. Hence, this project is currently being led in a spirit of carefully following existing documentation.
- The first thing to build is not the bike itself but a BikeBench (see below under Components)
Goal
- make a 1st working prototype of a Long André
- organize Long André manufacturing workshops
Obstacles
- documentation must be translated first (pending)
Component
- BOM & list of needed tools are the first things that will be translated
- Documentation has almost the status of a component...
BikeBench
A BikeBench (this wiki's page) is a jig / workbench for bicycle-based creations, designed and implemented by Thomas Viebach from Werkstatt Lastenrad.
Outils requis:
- post à souder (conseillé MAG)
- scie à métaux ou meuleuse d'angle
- perceuse
- perceuse à colonne
- tarauds M8 et M10
- étaux à angle ou des étaux à cadre (Winkel- oder Rahmen-Zwingen)
- protections oculaires, lime, compas, pointeau, marteau, ...
Matière pour 3 BikeBenches:
- 2x 6 m de profil carré 40 x 40 x 3 mm
- 6 m de profil carré 45 x 45 x 2 mm
- 42 vis six pans M8 x 20 mm
- 42 écrous M8 à souder
- 3 vis six pans M10 x 25 mm
- 3 écrous M8 à souder
- 3 morceaux de tôle 40 x 40 x 3 mm
- 3 axe de roue avant + écrous correspondants
- 3 axe de roue arrière + écrous correspondants
- 0,6 m de tube rond 12 x 1 mm
Long-André
Produits semi-finis en acier:
| description du profil | longueur pour 1 Long André | utilisation |
|---|---|---|
| tube carré 40 x 40 x 1,5 mm (EN 10219) | 1300 + 800 mm | tube inférieur, prolongation montante du tube inf., coin de rigidification |
| tube 1", ⌀33,7 x 2,0 mm (EN 10219) | 850 + 300 mm | tubes de direction court et long |
| tube 1/2", ⌀21,3 x 2,0 mm (EN 10255) | 700 mm | prolongation du tube de fourche |
| tube 1/2", ⌀21,3 x 1,75 mm (EN 10219) | 1200 + 1200 mm | cintre |
| tube carré 20 x 20 x 1,5 mm (EN 10219) | 1400 + 1400 mm | cadre de la surface de chargement |
| tube 3/8", ⌀17 x 2 mm (EN 10255) | 1900 mm | tige de direction |
| feuillard (bande) 20 x 3 mm (EN 10025) | 1900 mm | renfort inférieur, coin de rigidification |
| feuillard (bande) 30 x 3 mm (EN 10025) | 160 mm | levier de direction long |
| profil 30 x 8 mm (EN 10025) | 50 mm | levier de direction court |
| tube de précision ⌀20 x 3 mm | 20 mm | logement de la douille fritée |
| tôle 2 mm ou restes du tube carré 40 mm | 150 mm | bouchons |
Cadres en acier, fourches:
- Cadre de vélo en acier, soudé, sans manchons, idéalement d'un VTT 26”, avec transmission et vitesses correspondantes, noter la largeur de l'axe de la roue arrière.
- fourche 20” pour la roue avant
- 2 fourches à sacrifier
Composants et vis spéciaux:
Composants pour la tige de direction du long levier de direction (arrière):
• Douille fritée, Ø int. 10 mm, Ø ext. 14 mm, long. 20 mm
• Vis pour douille fritée: DIN 601, M10, long. 50 mm, six pans
• Logement pour la douille frittée (Ø int. 14 mm, ép. paroi 3 mm, long. 20 mm (tube de précision, composant 14)
• 2x écrous M10 (1x écrou à souder, 1x écrou inox)
• rondelles nylon M10 Ø 30 mm
Composants pour la tige de direction du court levier de direction (avant):
• Chape articulée M8 KA 8-D avec filetage ext. (DIN ISO 12240-4 série dimensionnelle K)
• douille d'écartement/écrou long M8. (largeur de clé 14 ou 10 mm)
• vis M8 imbus, inox
• écrou M8 autobloquant, 3x rondelles M8
Panneau laminé-stratifié de la surface de chargement:
• multiplex revêtu 12 mm, (long. x larg., p. ex.: 850 x 600 mm)
• vis M6 imbus (6-8 pces)
• écrous M6 à souder (6-8 pces)
Schedule
- Opening: May 2015
- Ending: ?
Participants
- Léonard (Leader, UCmakerspace guest)
- Marc Wettstein (UCmakerspace boss)
- The Werkstatt Lastenrad people in Germany, with whom emails are being exchanged: Christophe Vaillant, André Frieböse, Tom Hansing, Thomas Viebach