| 摘要 |
PROBLEM TO BE SOLVED: To provide a joint bar for a rail capable of suspending even a joint part of the rail by holding an abdominal part of the rail, and capable of pushing out even the joint part of its rail.SOLUTION: The joint bar comprises an upper joint bar 11 having an upper side joint bar body part 11a having a width W2 narrower than a width W1 between inside surfaces of a pair of arm parts 3a and 3a of a rail catch 3 with a roller and provided with a joint bar side through-hole 11a1 for inserting a bolt 2 respectively threadedly engaging with a rail side bolt hole provided in a head part Ra of a balance rail R and joint bar side projection parts 11b and 11b projecting downward from longitudinal both sides of its upper side joint bar body part 11a and fitted to a rail side recessed part Ra2 provided in a head part Ra of the balance rail R and a lower side joint bar 12 provided on the lower side of a bottom part Rc of the balance rail R and provided with a joint bar side bolt hole 12a1 threadedly engaging with the bolt 2 inserted via a rail side through-hole Rc1 provided on both sides of the bottom part Rc of the balance rail R. |
