초록

The present invention is generally directed to an elevator for multi-level rack storage systems that can automatically and continuously transfer loads from an upper level to a lower level without the use of an external power source.

대표청구항 ▼

1. A multi-level load storage and transfer system, comprising: an input conveyor inclined toward the rear of the system; an output conveyor inclined toward the front of the system and located below the input conveyor; a gravitationally powered elevator assembly including an elevator deck and a

1. A multi-level load storage and transfer system, comprising: an input conveyor inclined toward the rear of the system; an output conveyor inclined toward the front of the system and located below the input conveyor; a gravitationally powered elevator assembly including an elevator deck and a surface upon which loads may roll; a mechanical load stop provided along said input conveyor; an elevator lock and release mechanism in cooperation with said elevator assembly and said output conveyor; and, a reverse flow mechanism including a reverse flow beam in cooperation with said elevator assembly. 2. The invention of claim 1 including at least one gas spring in cooperation with said elevator assembly. 3. The invention of claim 2 wherein said input conveyor includes a roller brake. 4. A multi-level load storage and transfer system, comprising: input conveyor means for delivering a load to the rear of the system; an output conveyor means for returning a load to the front of the system; a gravitationally powered elevator means for transferring a load from the input conveyor means to the output conveyor means; an elevator lock and release means for retaining the elevator means in a lowered position until the load to be transferred clears the elevator means and rolls along the output conveyor means; a reverse flow means cooperating with said elevator means for accomplishing smooth load transfer; and, a load stop means for mechanically stopping a load on the input conveyor means when the elevator means is not ready to accept a load. 5. The invention of claim 4 including a rolling brake means to properly space loads along the input conveyor means. 6. The invention of claim 4 wherein at least one gas spring cooperates with said elevator means.