Sheet feeding or delivering – Feeding – Separators
Patent
1989-06-27
1991-09-03
Bollinger, David H.
Sheet feeding or delivering
Feeding
Separators
271167, B65H 352
Patent
active
050446223
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a process for automatically dispensing objects, in particular objects which are relatively flexible and which are relatively thin when their thickness is compared with the other dimensions, such as, for example, cards, tickets of all types and booklets, which are stored in a free pile or disposed in a pile inside a suitable container, in which the object at the top of the pile is dispensed by means of a separating device comprising a rotary friction drive unit.
It also relates to an automatic dispenser for these objects, for the implementation of the above-mentioned process.
Various devices which ensure the automatic dispensing of tickets of all types or other objects as specified above are already known. These devices usually comprise relatively complex push-button systems, the purpose of which is to isolate one of the objects and to bring it into a position in which it can be taken by the user.
The object of the invention is to construct a simple apparatus which operates in accordance with a particularly reliable process, which ensures the selective dispensing of lotto playing cards, lottery tickets, tickets for public transport, etc. The characteristics of these dispensed objects are, on the one hand, a relative flexibility which can be attributed in particular to the nature of the materials used, such as paper, cardboard, synthetic material or composite materials, and, on the other hand, the relatively low value of the ratio between the thickness of the object and its other dimensions.
To this end the process according to the invention is characterised in that during a first phase of the process a constant predetermined pressure is exerted on the object to be dispensed by forcing the rotary friction drive unit against the free surface of said object by a predetermined force, in that during a second phase of the process the rotary friction drive unit resting on said object to be dispensed is actuated and this object is forced against an inclined ramp so that its front edge is raised, and in that during a third phase of the process the actuation of the rotary friction drive unit is continued and said front edge is engaged inside a guideway.
In a particularly advantageous embodiment, means are provided to arrest, at the entrance to said guideway, other objects which are initially disposed beneath said object to be dispensed and which are possibly carried along during the first two phases of the process.
The apparatus specified by the invention is characterised in that it comprises means for raising the front edge of said object, means for engaging this front edge of this object in a guideway and means for arresting, in front of the entrance to this guideway, any other objects which have been carried along simultaneously with the object to be dispensed.
In a preferred embodiment, said rotary friction drive unit consists of at least one friction wheel rotated by a drive unit, this wheel being mounted at the free end of a lever pivoting around a fixed axis.
Said means for raising the front edge of the topmost object advantageously comprise an inclined ramp, the base of which is situated at the same level as or beneath the level of the object to be dispensed and the upper part of which is situated above this level.
The guideway preferably comprises a first surface which connects the upper part of the inclined ramp and a second surface which is disposed substantially parallel to this first surface, at a predetermined distance from the latter. This distance separating the two surfaces is slightly greater than the thickness of one object and less than the thickness of two objects.
The means for arresting any objects other than the object at the top of the pile preferably comprise at least one step-like recess provided between the upper part of the ramp and said first surface. This step-like recess preferably comprises two successive stops which are staggered in height.
According to another particularly advantageous embodiment, the apparatus as specified by the invention may compr
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patent: 3126122 (1964-03-01), Sacre
patent: 43287889 (1983-06-01), Koyama et al.
patent: 4188026 (1980-02-01), Kazumasa
patent: 4718655 (1988-01-01), Okayama et al.
IBM Technical Disclosure Bulletin, vol. 20, No. 12, May 1978 (New York, U.S.) F. Y. Brandon et al.: "Wave Generator Paper Separation System", pp. 5119-5120.
IBM Technical Disclosure Bulletin, vol. 23, No. 7, Dec. 1980 (New York, U.S.), M. R. McAllister et al.: "Paper Feed Module", pp. 2677-2678.
Patent Abstracts of Japan, vol. 8, No. 189 (M-321( (1626) Aug. 30, 1987 & JP. A 5978013 (Kinseishiya K.K.), May 4, 1984, see whole document.
Bollinger David H.
SADAMEL Societe Anonyme des Apparails de Mesure et de Laboratoir
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