Document Type and Number:
Japanese Patent JPS5233867
Kind Code:
B1
Abstract:
A self-propelled stacker crane has a tall hoist column captured between a floor mounted horizontal guide rail and a ceiling located horizontal guide tube. A crane carriage is driven along the floor guide rail by a horizontal motor and brake in order to position the crane adjacent horizontally spaced and vertically stacked bins. To eliminate vertical sway and misalignment of the hoist column when the floor driven carriage is braked, a caliper brake mounted at the top of the hoist column is actuated to clamp the ceiling guide tube. The caliper brake is hydraulically actuated under control of a compression spring which is released by deenergization of a solenoid. After a short time delay, the caliper brake may be released by energizing the solenoid in order to correct for any vertical offset in the hoist column.
Application Number:
JP4170672A
Publication Date:
August 31, 1977
Filing Date:
April 25, 1972
Export Citation:
International Classes:
B66F9/07; (IPC1-7): B65G1/06