Cup holder

A cup holder holding an object, the cup holder comprising:

• a bottom wall and a side wall that cooperate to define a storing part that receives the object, the storing part being cylindrical and opened at an upper portion, wherein the side wall includes an interior face that faces toward the object received by the storing part;
• the side wall defining an opening part that includes opposing wall parts facing one another and connected by a rear wall, wherein the rear wall faces toward the object received by the storing part;
• a holder that is biased towards an interior of the storing part and is received between the opposing wall parts of the opening part so that the holder may protrude and retract, the holder defining a maximum storage position when the holder is retracted so that a flat part of the holder is generally coplanar with the interior face of the side wall for receipt of the object;
• and
• axial parts that protrude from the respective opposing wall parts to rotatably receive the holder;
• a restricting part that is spaced from the rear wall and extends between the opposing wall parts to connect the opposing wall parts to one another, the restricting part being spaced from the interior face a distance that is less than a distance between the axial parts and the interior face when the holder is at the maximum storage position, wherein
• a central portion of the flat part is at a same height as the restricting part when the holder is at the maximum storage position.