Conveyors: power-driven – Conveyor system for arranging or rearranging stream of items – By queueing items from quantity source of items into stream...
Patent
1992-05-26
1993-11-02
Dayoan, D. Glenn
Conveyors: power-driven
Conveyor system for arranging or rearranging stream of items
By queueing items from quantity source of items into stream...
1987741, B65G 4712
Patent
active
052576884
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION AND PRIOR ART
This invention is related to a device for dividing or splitting a collection of elongated wood pieces, in particular round timber pieces, and piecemeal cross feeding thereof in a direction away from the collection place in accordance with the precharacterizing part of the enclosed claim 1.
Such a device is described in our Swedish patent publication No. 449 476. The known device has turned out to be very preferable and has resulted in a great commercial success.
According to the embodiment example in the patent publication 449 476, the first portions of the steps of the feeding arrangement and the support path are entirely parallel to the rectilinear, sloping path of movement in the device known. This means that the second portions of the steps of the feeding arrangement always will protrude equally far beyond the first portions of the steps of the support path on movement upwardly of the feeding arrangement.
SUMMARY OF THE INVENTION
The object of the present invention is to develop the device known so as to optimize its feeding operation and capacity.
This object is according to the invention obtained by the structural design defined in the characterizing part of claim 1.
Accordingly, this design involves that the second portions of the feeding arrangement will project to a differing degree beyond the first portions of the support path on movement of the feeding arrangement. This is a consequence of the different slope of the movement path and the first portions of the steps of the feeding arrangement as well as the support path. More specifically, the second portions of the feeding arrangement will, at the time of contact against a wood piece, project fairly far beyond the first portions of the steps of the support path whereas this projection successively decreases when the wood piece is displaced upwardly along the first portions of the steps of the support path. This is preferable since the inertia at the time of contact makes the tendency of a wood piece to inadvertently roll backwardly over the forwardly feeding step is particularly great at that time. Thus, the design according to the invention makes it possible to operate the device with a high pace of the feeding arrangement without inadvertent rolling backwardly of wood pieces in the higher range of coarseness.
Preferable optimizations within the scope of the basic concept of the invention are subject of the dependent claims.
BRIEF DESCRIPTION OF THE DRAWINGS
With reference to the appended drawings, a more specific description of an embodiment example of the invention will follow hereinafter.
In the drawings;
FIG. 1 is a partly cut side view illustrating the device according to the invention;
FIG. 2 is a diagrammatical section along the line II--II in FIG. 2;
FIG. 3 is a view of the device according to FIG. 1 viewed from above;
FIG. 4 is an enlarged side view of a part of the device according to FIG. 1; and
FIG. 5 is a view similar to FIG. 4 but illustrating the device in another operational position.
DETAILED DESCRIPTION OF A PREFERRED EMBODIMENT
The device according to the invention for dividing a collection of elongated wood pieces, in particular round timber pieces, and piecemeal cross feeding thereof in a direction away from the collection place indicated at 1 in FIG. 1 comprises a feeding arrangement 2 which is moveable reciprocatingly in a substantially rectilinear, sloping movement part 3 for feeding the wood pieces along a rising support path 4. The support path 4 is stationarily arranged on a frame 5.
As is most clearly apparent from FIG. 4 and 5, the feeding arrangement 2 as well as the support path 4 have a stairs-like design with a plurality of steps 6 and 7 respectively, which in profile have substantially equal form, preferably identical form, and each of which comprises a first portion 9 sloping upwardly in the direction 8 of rise of the support path, said first portion being followed by a downwardly sloping second portion 10.
Two adjacent steps 6 and 7 respectively on the feeding ar
REFERENCES:
patent: 2995235 (1961-08-01), Maier, Jr.
patent: 4624614 (1986-11-01), Levad et al.
patent: 4933074 (1990-06-01), Fuller, Jr. et al.
Dayoan D. Glenn
Interlog AB
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