Material or article handling – Plural – static structures for supporting discrete loads and... – Load-underlying members
Patent
1987-11-12
1989-10-10
Bucci, David A.
Material or article handling
Plural, static structures for supporting discrete loads and...
Load-underlying members
187 27, B65G 104
Patent
active
048728004
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention relates to storage equipment and has specific reference to unit goods storages.
DESCRIPTION OF THE PRIOR ART
Modern methods of storing unit goods primarily, randomly retrievable goods, give preference to storage facilities of either the gravity or rack type.
Gravity storages, where the shelves must be installed at an angle to the horizontal and equipped with means of retarding the motion of goods, suffer from low economic usage of available space and are of intricate design.
Rack-type storages utilize available space more effectively. So for example, there is known a storage (DE, A, 2,543,545) comprising racks the framework of each of which is made up of vertical masts giving support to stacks of cantilever shelves which face each other with their free sides and are separated by vertical passages. A horizontal individually-driven conveyor extending beyond the framework and capable of up and down displacement is provided in each passage. The vertical drive of every conveyor consists of a system of screw pairs the screws of which are coupled to an electric motor via reduction gears.
Despite an improved space utilization factor, some space must be reserved in the known storage for installing the drives and rendering them accessible for servicing. The individual conveyor drives make the known storage an awkward piece of engineering which is also tedious in operation, for the screws should be constantly kept in synchronism in order to avoid skewing and jamming of conveyors.
SUMMARY OF THE INVENTION
The principal object of the invention is to provide a storage wherein the means for handling goods in the racks is of refined and simplified design which increases economic usage of available space and is simple in operation.
This object is realized by a unit goods storage comprising racks a framework of which is made up each of vertical masts giving support to stacks of cantilever shelves facing each other with their free sides so as to form vertical passages each containing a horizontal conveyor extending beyond the framework at either end and capable of displacing vertically along the height of the framework between the free sides of the shelves. According to the invention the extending ends of conveyor frames are interconnected by stiff members so as to form therewith a gridwork capable of displacement between the free sides of the shelves up and down the height of the storage under the action of a common drive incorporating a drum and ropes which pass over movable and stationary sheaves being attached each to the drum with one end and to the rack with the other end.
The means to handling goods in the racks which is provided in the form of the gridwork serves to join adjacent racks to each other, thereby increasing the total volume of the warehouse which is utilized for storage. The common means of actuating the gridwork which serves to move up and down all conveyors and is provided in the form of sheaves and ropes, is inherently simple and therefore reliable in operation, posing no problems.
It is expedient according to the invention to provide the stiff members in tubular form and run actuating ropes through the bores of the tubular members, whereby the movable sheaves of the gridwork drive are attached to the tubular members and the stationary sheaves are secured to the racks.
This arrangement simplifies the way in which the gridwork is coupled to the drive and permits the height of the warehouse to be fully utilized.
BRIEF DESCRIPTION OF THE DRAWINGS
A preferred embodiment of the invention will now be described by way of example with reference to the accompanying drawings in which
FIG. 1 is a side elevation of the disclosed storage;
FIG. 2 is a section on line II--II of FIG. 1;
FIG. 3 is a section on line III--III of FIG. 1; and
FIG. 4 is a plan view of the disclosed storage.
DESCRIPTION OF THE PREFERRED EMBODIMENT
The storage comprises a horizontal row of racks 1 (FIGS. 1, 2) a framework 2 of which is each made up of vertical masts giving support to stac
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patent: 4392768 (1983-07-01), Van Capelleveen
Gutov Sergei K.
Plesser Dmitry A.
Radutsky Grigory A.
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