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Drink holder SBB (004)
This cup holder, also known as a cup tray, is installed in the folding tables of Swiss Federal Railways (SBB) trains. It securely holds bottles and cups in place, ensuring that they remain stable even when the train is moving, and provides comfort and stability during the journey.
Challenge
The manufacture of the cup holder requires the utmost precision: it needs a thread for assembly, but must not show any discolouration or deformation on the visible side. The visible side must also be given a high-quality rotary finish to ensure an aesthetically pleasing result.
Solutions
First, the sheet metal is punched and the bevel is embossed. Then the edge is turned to the correct height and diameter. The thread is created using a threaded bolt, which is welded on using a bolt welding machine with tip ignition. This process ensures a clean, mechanical connection without weld beads or discolouration. Finally, the holder is given a high-quality circular grind for a flawless appearance.
Technical information
| Material | Chrome steel 1.4301 |
| Material thickness | 0.8 mm |
| Dimensions | D=70 mm / H=35 mm |
