| 摘要 |
PURPOSE: A set back cup holder holds a cup or a can contained in a folded seat used as a table. CONSTITUTION: Multiple circular grooves(3) are formed on a back plate(2) which is a rear surface of a seat back. Plastic bellows pipes(4) maintaining the length thereof after being compressed or expanded are fixed on the bottom of the circular grooves(3) respectively. The plastic bellows pipes(4) has a height not to be protrusive outside the circular grooves(3) when compressed and 50mm - 60mm when expanded to hold a cup or a can stably. Stepped parts(3a) are formed around the upper edge of the circular grooves(3) to make it easy to pull the compressed bellows pipes(4) to expand.
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