Conveyors: power-driven – Conveyor arrangement for selecting among plural sources or... – By loading or unloading section at selected one of a...
Patent
1996-10-07
1999-01-12
Bidwell, James R.
Conveyors: power-driven
Conveyor arrangement for selecting among plural sources or...
By loading or unloading section at selected one of a...
B65G 3700
Patent
active
058575553
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
From EP-A-540 464, a sorting line for piece goods is known having a plurality of carriages which are coupled together to form a carriage chain. Each carriage has a bowl for receiving the piece goods. At a selectable receiving station, the bowl can be pivoted from a locked, horizontal initial position into a tilted position by means of two pusher rods and an actuating device. When the pusher rod is actuated, the lock is released first and then the bowl is tilted. This actuating device has performed very well. But its production is expensive because many individual parts are required.
SUMMARY OF THE INVENTION
It is the object of the present invention to design a device of the type mentioned at the outset in such a manner that its production is inexpensive. The above and other objects are accomplished in the context of an actuating device for tilting a component from a locked initial position into at least one tiled position, wherein the component is seated so as to pivotable around an axle of a frame, and wherein for a tilting the component, at least one actuating rod unlocks a locking device and tilts the component, wherein according to the invention, the actuating device comprises two resilient yokes each having a first end secured to the component and a second end displaceable within defined limits with respect to the component; and a separate actuating rod articulated adjacent to the second end of each yoke, wherein each yoke includes a latch cam between the two ends and the two yokes are arranged axisymmetrically to an axis normal to a longitudinal direction of the axle, with the two cams forming a groove into which a projection fixedly connected to the frame is locked in the initial position of the component.
Further aspects and features of the invention will become apparent from the detailed description and the appended claims.
In the following an embodiment of the invention will be explained by way of the drawings. The drawings show:
FIG. 1 a side view of a carriage for a sorting line,
FIG. 2 a cross section along the line II--II in FIG. 1,
FIG. 3 a schematic representation of the mode of operation,
FIG. 4 a view of a support with yoke,
FIGS. 5-8 views and sections in the direction of the arrows V, VI or along the lines VII--VII and VIII--VIII in FIG. 4, and
FIGS. 9-11 two embodiment variants of the resilient yoke.
DETAILED DESCRIPTION OF THE INVENTION
FIGS. 1 and 2 illustrate a carriage 1 of a sorting line. On a carriage body 2 is mounted a running gear 3 with running rollers 4 and lateral guide rollers 5 which run on tracks that are not shown. Adjacent carriages 1 are coupled to one another by means of joint rods 6. At the bottom, the carriage body 2 is provided with a toothed rack 7 for engagement in a circulating chain for driving the carriage chain. A U-shaped support 8 is mounted on the carriage body 2, with the support bearing an axle 9 extending in the longitudinal direction of the carriage. A bowl 10 is pivotably seated on this axle to support the piece goods by means of ball bearings 11. On the side of the carriage body 2, respectively one pivot arm 12 is seated so as to pivot. On the bottom of the arm, an actuating roller 13 is rotatably seated which runs onto a switchable cam track at the destination station of the carriage 1 and pushes a pusher rod 14 upward. The pusher rod 14 is provided with spherical bearings 15 on both sides.
The two pusher rods 14 act on a locking and actuating device 20. The latter comprises two identical supports 22 arranged in central symmetry to a normal axis 21 through the axle 9, the supports having formed-on, resilient yokes 23 made of plastic material, preferably of polypropylene. The two supports 22 and yokes 23 are partially axially offset with respect to one another. Referring additionally to FIG. 3, in the center, the supports 22 have coaxial bores 24 into which ball bearings 25 are inserted. The bearings 25 are slid onto the shaft 9. At the top, the supports 22 have laterally projecting flanges 26 with through-bores 27
REFERENCES:
patent: 3034665 (1962-05-01), Speaker
patent: 3265190 (1966-08-01), Boehm
patent: 3360106 (1967-12-01), Harrison et al.
patent: 5477955 (1995-12-01), Madden et al.
patent: 5611419 (1997-03-01), LaVars
patent: 5632589 (1997-05-01), Bray et al.
Boller Manfred
Maier Wilhelm
Bidwell James R.
Grapha-Holding AG
Kinberg Robert
Spencer Venable George H.
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