PURPOSE:To change the attachment angle of a card rail easily as required by providing a curved extension wall extending with a downward convex shape from the lower back surface of a main wall of the card rail, and forming elongated holes on both ends of the extension wall. CONSTITUTION:A card rail 16 attached along the front surface of a shelf plate 10 is preferably of a long size made of aluminum or plastic. The card rail is formed with a main wall 17 bulging in the direction of a front wall 12A of the shelf plate 10 and a curved extension wall 18 extending backward with a downward convex shape from an appropriate lower back surface of the main wall 17. Front upper and lower ends of the main wall 17 are provided with detents for holding a card 19. The extension wall 18 is provided near its both ends with elongated holes 21 slender in the fore-and-aft direction and at its rear end with a raised portion 22. A stop piece 23 is used for securing the shelf plate 10. A mating portion 26 of a flange 13A is formed with a screw portion 24 and a head 25. The card rail 16 is supported by tightening the stop piece 23. Change of the attachment angle is made within the depth of the elongated hole.
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