초록 ▼

A power and free conveying system includes a track assembly having a power track and a free track spaced vertically from the power track, a power trolley supported on the power track for movement therealong and a free trolley supported on the free track for movement therealong. The free trolley incl

A power and free conveying system includes a track assembly having a power track and a free track spaced vertically from the power track, a power trolley supported on the power track for movement therealong and a free trolley supported on the free track for movement therealong. The free trolley includes a moveable holdback dog engageable and disengageable with the power trolley. The free trolley includes a retractable dog having a first position engageable with the power trolley and a second position disengageable with the power trolley and engageable with the holdback dog to completely disengage the free trolley from the power trolley upon engaging another one of the free trolley. The track assembly includes a C-shaped first side support member having an upper transverse end connected to the power track and a lower transverse end connected to the free track and a C-shaped second side support member opposite and spaced from the first side support member having an upper transverse end connected to the power track and a lower transverse end connected to the free track.

대표청구항 ▼

A power and free conveying system comprising: a track assembly including a power track and a free track spaced vertically from said power track; a power trolley supported on said power track for movement therealong; a free trolley supported on said free track for movement therealong; said free troll

A power and free conveying system comprising: a track assembly including a power track and a free track spaced vertically from said power track; a power trolley supported on said power track for movement therealong; a free trolley supported on said free track for movement therealong; said free trolley including a trolley body with transversely spaced first upstanding projections and second upstanding projections spaced longitudinally from said first upstanding projections at an upper end of said trolley body; said free trolley including a moveable holdback dog rotatably secured between said first upstanding projections and engageable and disengageable with said power trolley; and said free trolley including a retractable dog having a first position engageable with said power trolley and a second position disengageable with said power trolley and engageable with said holdback dog to completely disengage said free trolley from said power trolley upon engaging another one of said free trolley.