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    • 26. 发明专利
    • Fully Automatic Coupler for Excavator Arm
    • GB2500530A
    • 2013-09-25
    • GB201311113
    • 2013-06-21
    • MILLER GARY
    • MILLER GARY
    • E02F3/36
    • A coupler comprising a latching mechanism for latching against an attachment pin of the accessory, and a blocking bar 158 for selectively resisting movements of the latching mechanism, wherein the blocking bar has an integrated spring or piston, or both, the integrated spring or piston being mounted within a chamber within the blocking bar. The hydraulic cylinder (162, fig 11) is mounted within the chamber (160, fig 11) along an axis substantially parallel to, but spaced from, the longitudinal axis of the blocking bar 158. The cylinder may have a free end (164, fig 11) also lying on that axis of the cylinder 162. The free end of the hydraulic cylinder can bear against a fixed element and cause the blocking bar to be lifted from its blocking position (Fig 9) to its non-blocking position (Figs 13 &14). The hydraulic cylinder 162 can therefore raise the blocking bar from a blocking position into a non-blocking position.