| 摘要 |
PURPOSE: To make it possible to manufacture a track in which a rail provides symmetrically reflected image as to the central line of the lateral direction at a lower cost, particularly very easily install it by installing rollers at the both end portions. CONSTITUTION: A rail provides a symmetrically reflected image as to the central line of the lateral direction. And the rail 1 has the first horizontal flange 3 and the second horizontal flange 9, substantially consists of a channel shape. The second horizontal flange 9 of the rail 1 has an outer edge portion 15. And the second horizontal flange 9 is bent at 90 deg. angle against the first horizontal flange 3, specially a groove is formed. Firmly action stopping portions 11 are formed at the both the end portions of the second flange 9 (i.e., the second horizontal flange), and also a non-firmly action stopping portion 10 is formed at the front of the firmly action stopping portion 11. The rollers 4 are rotatably installed on a pin 14 fixed so as to not rotate against the bore 13 of the rail 1. |
