Sheet feeding or delivering – Feeding – By means to change direction of sheet travel
Patent
1994-08-03
1996-04-02
Bollinger, David H.
Sheet feeding or delivering
Feeding
By means to change direction of sheet travel
271184, 271185, B65H 500
Patent
active
055033865
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention relates to a device for transferring a first scale-shaped flow consisting of printed products and conveyed on a first conveying track to a second scale-shaped flow conveyed on a second conveying track and extending obliquely in respect to the first scale-shaped flow, with means for aligning the second scale-shaped flow straight in the direction of its conveyance.
Devices of this type are generally known. They have a lateral panel for aligning the printed products of the second scale-shaped flow, which extends parallel with the second conveying track and along which the printed products glide, their edges resting against it. Sometimes brushes or rollers are used in place of the lateral panel. If the printed products consist of printed products which are folded inside each other and are laterally offset in respect to each other, the edges of the printed products are damaged by the impact against the lateral panel and the printed products which are folded inside each other are displaced in respect to each other. Because of this the further, subsequent processing can be hampered.
SUMMARY OF THE INVENTION
It is the object of the invention to provide a device of the type mentioned which avoids the said disadvantages and therefore permits a considerably more gentle treatment of printed products conveyed in the scale-shaped flow. In spite of this the device is intended to be functioning dependably and to be advantageous regarding its manufacture and maintenance.
The object is attained in a device in that a downward leading step is disposed between the first and second conveying tracks, and that the means for the straight alignment of the second scale-shaped flow guide the first and second scale-shaped flow from above. In the device in accordance with the invention, the first and second scale-shaped flows are guided from above so that a lateral buffer panel or the like is not required. The lateral edges of the second scale-shaped flow are therefore free and are not stressed. Thus, the edges of the printed products cannot be damaged and the lateral offset of the printed products cannot be changed. A step is disposed between the two conveying tracks, which temporarily spreads open the second scale-shaped flow in this area. It now has been surprisingly found that this spreading considerably eases the guidance of the printed products, and even with large size printed products even makes such guidance possible. Presumably the reason for this is that the printed products are more movable in the area of the step and lateral forces here cannot result in an interference with the scale-shaped flow. It is therefore essential that the direction and exact lateral evenness of the diverted printed products independently of the conveying speed are not changed.
BRIEF DESCRIPTION OF THE DRAWINGS
An exemplary embodiment of the invention will be described in detail below by means of the drawings. Shown are in:
FIG. 1, a partial view of a device in accordance with the invention, and
FIG. 2, a further partial view of the device in accordance with the invention.
DETAILED DESCRIPTION OF THE INVENTION
The device has a first conveying track 1 with at least two conveyor belts 6 extending parallel to each other in the direction of the arrow 17. The belts 6 are driven in a manner known per se by a drive, not shown here, by means of a shaft 16 and at the front end are respectively passed over a roller 8. The endless belts 6 can be telescopically adjusted in such a way that a front edge K of the conveying path can be parallel adjusted. Such telescoping belts are well known per se. A scale-shaped flow (first imbricated flow) 2 of printed products 2a can be conveyed in the direction of the arrow 17. The printed products are newspapers or magazines, for example, which consist of parts which are disposed laterally offset. As can be seen, the scale-shaped flow is conveyed essentially diagonally in respect to the printed products 2a. Other suitable conveying means instead of the belts 6 are also conc
REFERENCES:
patent: 2177460 (1939-10-01), Renz
patent: 3605980 (1971-09-01), Donahue et al.
patent: 4201377 (1980-05-01), Honegger
patent: 4465270 (1984-08-01), Amato
patent: 4861014 (1989-08-01), Martin
patent: 5054760 (1991-10-01), Reist
patent: 5112041 (1992-05-01), Honegger
Fritsche Beat
Straessler Rene
Bollinger David H.
Grapha-Holding AG
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