초록 ▼

A lifting adapter for use in lifting and releasing large bulk bags. The adapter has a frame formed in an X-shaped configuration in the preferred embodiment. The X-shaped frame is formed from tubular arms that extend downwardly and outwardly at an angle ranging from 10 to 30 degrees. Each arm holds a

A lifting adapter for use in lifting and releasing large bulk bags. The adapter has a frame formed in an X-shaped configuration in the preferred embodiment. The X-shaped frame is formed from tubular arms that extend downwardly and outwardly at an angle ranging from 10 to 30 degrees. Each arm holds a bag loop retaining toggle lock in the preferred embodiment which is pneumatically operated to serve to release the bag loops from the arms at a predetermined time so that the bag loops of the filled bag will slide off of the retaining toggle lock by gravity to thereby release the filled bag from the lifting adapter.

대표청구항 ▼

A movable lifting adapter for use in lifting and releasing bulk bags from an overhead crane, the bags having a plurality of attached bag lifting loops which are attached to the bag and carry the weight of the contents of the bag and also remain attached to the bulk bag as the bag is lifted and then

A movable lifting adapter for use in lifting and releasing bulk bags from an overhead crane, the bags having a plurality of attached bag lifting loops which are attached to the bag and carry the weight of the contents of the bag and also remain attached to the bulk bag as the bag is lifted and then subsequently slide off of the lifting adapter is desired, comprising: a. a frame having outer edges; b. lifting means, fixedly attached to the frame, for raising and lowering the bulk bag by the overhead crane; c. bag loop retaining means, fixedly attached to the outer edges of the frame, for retaining the bag loops on the retaining means so that the bulk bag can be raised and then later lowered at a predetermined time, the bag loop retaining means containing a bag loop engaging and sliding surface upon which the bag loops can slide when the bulk bag and the attached bag loops are released by the adapter; (1) movable finger means, associated with the bag loop retaining means and positioned thereon, for movement between an upwardly extending engaged position to a downwardly extending release position, the finger means serving to hold the bulk bag loops and the weight of the contents of the bag on the engaging and sliding surface of the retaining means whenever the finger means are in an engaged position; and d. control means, associated with the frame and the retaining means and the finger means for controlling the movement of the finger means between an engaged position and a release position so that the attached bag lifting loops may slide along the engaging and sliding surface of the retaining means until the entire bag with the attached bag lifting loops slide off of the engaging and sliding surface and become disengaged from the lifting adapter.