| 摘要 |
PROBLEM TO BE SOLVED: To provide a lock mechanism applicable for a rail body formed through an extruding work. SOLUTION: A lock plate 28 having a lock claw 28a inserted in and engaged with a series of the lock holes 32 of a guide rail 14 is oscillatorily disposed and supported orthogonally to the rolling direction of a runner 12 and deviated in a lock-on direction under the deviation force of a lock spring 40. A lock off plate 30 with a guide hole 44 inserted in and engaged with the coupling pin 38 of the lock plate 28 is slidably disposed along the rolling direction of a runner 12 and formed as combination of a linear lock part 44a extending along the rolling direction of a runner and a lock off part 44b obliquely extending in which the lock plate is forcedly moved in a lock off direction.
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