Conveyors: power-driven – Conveying system having plural power-driven conveying sections – Forming a single conveying path
Patent
1996-09-20
1999-05-04
Valenza, Joseph E.
Conveyors: power-driven
Conveying system having plural power-driven conveying sections
Forming a single conveying path
271198, 198607, 1986261, B65G 1512
Patent
active
058993185
DESCRIPTION:
BRIEF SUMMARY
DESCRIPTION
The present invention at hand relates to a device for transporting flat articles of the type including (Insert A).
In letter sorting machines, in particular address readers, flat articles are transported by means of cover belts, consisting of an upper and a lower belt. Such a transport takes place especially in dynamic storage segments where the articles are stored mechanically after the address scanning until the reading result is delivered by the electronic reading device and a code corresponding to the reading result can be printed onto the articles. A multiple deflection of the cover belt run is necessary especially in the storage segments to keep the required space at a minimum. In the course of this, the cover belt is generally guided over large cylinder rollers, during which the cover belt movement is deflected by 180.degree. or 90.degree.. One problem that occurs with the deflection around large cylinder rollers is that differential speeds occur between upper and lower belt. These differential speeds between the belts lead to a gap offset between the transported articles. Since a flawless tracking of the articles is necessary for the aforementioned devices, the gap offset between the articles must be kept as small as possible. One option of reducing the speed differential between lower and upper belt is, for example, if the upper belt is kept as short as possible around the cylinder roller. With respect to design, this can be achieved by using a larger number of cylinder rollers and belts. However, this requires more space and a higher installed drive power.
Thus, it is the object of the invention at hand to create a device for transporting flat articles for which no differential speeds occur between lower and upper belt during the deflection of the cover belt run.
SUMMARY OF THE INVENTION
The above object is achieved in accordance with one embodiment of the invention by a device for transporting flat articles with a cover belt consisting of a lower belt and an upper belt between which the articles are transported, and with a deflection mechanism for deflecting the cover belt run, and wherein: the deflection mechanism has one or more main cylinder rollers and one or more secondary cylinder rollers; the upper belt is guided around the main cylinder roller and the lower belt is guided over the secondary cylinder rollers, so that the lower belt is guided past the main cylinder roller such that the articles are transported in the deflection mechanism between the upper belt and the main cylinder roller; ask additional secondary cylinder roller is coordinated with the main cylinder roller and is arranged between the main cylinder roller and one of the secondary cylinder rollers that guide the lower belt; and a short elastic belt is placed around the main cylinder roller and the coordinated secondary cylinder roller such that the short belt provides a guide for articles that are outgoing in the area of the main cylinder roller to the transfer point (C) of the cover belt. Advantageous exemplary embodiments and features of the invention are disclosed and described.
The invention is explained in detail below with the aid of drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is an exemplary embodiment of the basic invention for a meandering storage segment.
FIG. 2 is an exemplary embodiment of the invention for a worm-shaped storage segment.
FIGS. 3a and 3b are side and top views respectively of an exemplary embodiment of the invention with a guide rail;
FIG. 4 is an exemplary further embodiment of the invention for a meandering storage segment.
FIG. 5 is an exemplary embodiment of the invention FIG. 4 with a 90.degree. corner deflection;
FIG. 6 is an exemplary embodiment of the invention FIG. 4 with a 180.degree. deflection.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
FIG. 1 shows a meandering storage segment with two endless transport belts 10a and 10b. The conveyor belts 10a and 10b are guided along the linear segments 11, 12, 13, 14, 15, 16 such that a cover belt, consisting of
REFERENCES:
patent: 2076493 (1937-04-01), Beardsley
patent: 3467063 (1969-09-01), Brinkley et al.
patent: 3973770 (1976-08-01), Montenbruck
patent: 4171129 (1979-10-01), Daley et al.
patent: 5143225 (1992-09-01), Rabindran et al.
Bulle Bernd
Schwer Wolfgang
Dillon, Sr. Joe
Kunitz Norman N.
Licentia Patent-Verwaltungs GmbH
Spencer George H.
Valenza Joseph E.
LandOfFree
Device for transporting flat articles does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Device for transporting flat articles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for transporting flat articles will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1862916