Tube conveyance rack

A tube conveyance rack comprising:

• a rack body having a tube insertion hole that is opened upward;
• and
• a gripping member arranged in the tube insertion hole,
• wherein the gripping member includes
• a frame-shaped base part formed in a frame shape and arranged horizontally along an inner wall of the tube insertion hole, and
• a plurality of arm parts that extend upward from the frame-shaped base part and grip a side of a tube inserted in the tube insertion hole by elastic force of the arm parts, and
• the frame-shaped base part includes, for each arm part, a bulge portion that bulges radially outward from the frame-shaped base part in a horizontal direction orthogonal to an extension direction of the frame-shaped base part at a joint portion with the arm part, the frame-shaped base part further including a plurality of arc-shaped edge portions that connect adjacent bulge portions,
• wherein an inner wall of the tube insertion hole includes a vertical slot recess having a shape corresponding to a shape of the bulge portion, wherein at least a portion of each arm part is configured to move into a corresponding vertical slot recess in which a corresponding bulge portion resides upon insertion of a tube into the tube insertion hole.