Conveyors: power-driven – Conveyor system for moving a specific load as a separate unit – System includes linear conveyor or portion thereof which...
Patent
1987-12-15
1989-03-28
Werner, Frank E.
Conveyors: power-driven
Conveyor system for moving a specific load as a separate unit
System includes linear conveyor or portion thereof which...
198586, 198592, B65G 3700
Patent
active
048155845
DESCRIPTION:
BRIEF SUMMARY
PRIOR ART
The invention relates to a conveyor device for transporting workpieces, particularly workpiece carriers, with two parallel transport ways which each have an externally located conveyor belt, preferably a continuous web belt guided over rollers, and each have an internally located roller system arranged at an interval from the conveyor belt and with at least one transverse conveyor arranged between the two transport ways according to Patent . . . German Application No. P 36 01 699.3.
In the case of the subject of the parent patent the transverse conveyor has a rigid support frame which intersects the internally located roller systems and bridges the vacant space between the roller systems and the externally located web belts of both transport ways. A lift device to raise or lower the transverse conveyor on one or both sides is associated with the support frame.
It has now been discovered that this construction can be further improved, particularly as regards the mass to be moved, in that the support frame of the transverse conveyor consists of an immovably arranged central section and two end sections mounted pivotably thereon, each of which intersects the internally located roller system of a transport way and bridges the vacant space between the roller system and the web belt, and each of which is engaged by a device for pivoting the end sections. In order to transfer the workpieces or workpiece carriers from one transport way onto the other, it is therefore not necessary to move the entire transverse conveyor; on the contrary, only the relatively short and light end sections of the support frame execute pivoting movements for this purpose, whereas the comparatively long and heavy central section of the support frame remains stationary. Bearing problems and guidance problems for the support frame of the transverse conveyor are eliminated, because its immovable, firmly anchored central section itself forms the bearing basis for the movable end sections.
It is particularly advantageous that the two end sections are each connected integrally to a shaft mounted for rotation on the central section and engaged by a lift device for pivoting. A simple construction of the transverse conveyor with economy of parts can be achieved with this design in that return rollers for continuous web belts associated with the central section and with the two end sections of the support frame are mounted on the shafts. It is further advantageous that the return rollers for the web belts of the central section and the return rollers seated on the shafts for the web belts of the end sections are mutually connected for joint rotation. By this means a single motor is sufficient for driving all the web belts.
DRAWING
An exemplary embodiment of the invention is illustrated in the drawing and explained in detail in the following description. The drawing shows a transverse conveyor constructed according to the invention in plan.
DESCRIPTION OF THE EXEMPLARY EMBODIMENT
The conveyor device illustrated consists substantially of two parallel transport ways 1, 2 and a transverse conveyor 3 connecting the latter. The two parallel transport ways 1, 2 each have an externally located driven web belt 4 or 5, which travels over return rollers, not shown, and each have an internally located roller system 60 or 70 with support rollers and guide rollers, not shown in detail, for workpiece carriers 80. The two transport ways 1, 2 are fastened on frames, not shown for the sake of clarity, and located at equal height, and are oriented mutually parallel with a prescribed interval. The workpiece carriers 80 rest upon the web belts 4 or 5 and upon the roller systems 60 or 70 and are transported at a speed prescribed by the feed of the web belts. The transport direction of the two ways is marked by arrows and each extends in an opposite direction.
Between the transport ways 1, 2 the transverse conveyor 3 already referred to is present, which bridges the interval between the ways, and by means of which workpiece carriers 80 can be transferre
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patent: 1912898 (1933-06-01), Jennings et al.
patent: 2888126 (1959-05-01), Leaman et al.
patent: 3104007 (1963-09-01), Swezey et al.
patent: 3540567 (1970-11-01), Keller
patent: 3690435 (1972-09-01), King et al.
Burger Karl-Heinz
Collmer Rosemarie
Fimpel Walter
Gieseler Klaus
Kochendorfer Heinrich
Bidwell James R.
Robert & Bosch GmbH
Striker Michael J.
Werner Frank E.
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