| 摘要 |
There is provided a metallic frame member usable in a traveling frame assembly, guide rail or receiving rail used in a conveyor system. It includes a rear section extending longitudinally of the frame member (3a), a pair of inclined sections (3b) bent in directions in which they extend towards each other from lateral ends of the rear section (3a), a pair of front sections (3c) bent in directions in which they extend from lateral ends of the pair of inclined sections (3b) generally in parallel to the rear section and a pair of side sections (3d) bent from lateral ends of the front sections (3c) towards the rear section (3a), the rear section (3a) and pair of inclined sections (3b) defining together a longitudinal concavity having a generally C-like vertical cross-sectional profile, and each of the side sections (3d) being folded back at the free end inside or outside thereof to form a folded portion (5). Thus, even in case each of the rear section, inclined sections, front sections and side sections is formed relatively thin, the frame member as whole can have a great strength and rigidity and thus the frame member can be a lightweight, high precision-worked one. In addition, since the frame member is simple in construction, suitable for mass production and inexpensive, so it is optimum for use to form a traveling frame assembly, guide rail, receiving rail, etc. used in the conveyor systems. <IMAGE> |
