PURPOSE: To install the upper end of a hanger pole to a bottom plate, etc., of a shelf with a front door simply and strongly, without using screw nails, etc.

CONSTITUTION: The upper end of a hanging pole 2 of a pipe shelf 1 is installed one an arm 4. A lower sandwiching member 7 is mounted on a base end 4B of the arm 4. An upper sandwiching member 10 is arranged oppositely to an upper side of the lower sandwiching member 7. A U-shaped connection fitting 8 connects the upper and lower sandwiching members 7, 10 to each other. A press-sandwiching bolt 9 is penetrated vertically from a lower side of the arm 4 into the base end 4B and the lower sandwiching member 7, and screwed with a lower piece of the connection fitting 8. The lower sandwiching member 7 is vertically moved in respect to the upper sandwiching member 10 by turning the bolt 9, and a shelf bottom plate 11 is sandwiched.