| 摘要 |
PURPOSE:To simplify constitution and assembly by constituting the captioned fork used in an automatic warehouse from the extrusion molding parts including the elements necessary for the functions of the secondary and primary forks. CONSTITUTION:A secondary fork 2 is formed through the integral extrusion of the right and left outward guide rails 6 and inward guide rails 7 in pairs and a projecting stripe 8 for a rack gear at the center part on the bottom surface. A primary fork 3 is constituted of an extrusion molding center part 10 having the starting down side walls 9 on the right and left sides and a load placing plate 11. The guide rollers 12a-12d and guide blocks 13a-13d of a fixed fork 1 are fitted into the outward guide rail groove 6 of the secondary fork 2, and the guide rollers 15a-15f and guide blocks 16a-16f of the primary fork 3 are fitted into the inward guide rail groove 7. With such constitution, the number of parts can be reduced, and the assembly manhour can be reduced.
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