Card – picture – or sign exhibiting – Changing exhibitor – Shiftable display item or item support
Patent
1986-07-11
1988-05-24
Mancene, Gene
Card, picture, or sign exhibiting
Changing exhibitor
Shiftable display item or item support
40476, G09F 1130
Patent
active
047456973
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a device for the cyclic rearrangement of a pile of
sheets. A device of that general kind is described and shown in U.S. Pat. No. 4,245,417.
The known device comprises a housing having a viewing window and a slider member that can be pulled out of the housing and pushed back into the housing again in a direction parallel to the plane defined by the window. A sheet-changing mechanism ensures that one sheet in the pile, for example the sheet remote from the viewing window, remains in the housing when the slider member is pulled out and is returned to the other end of the pile as the slider member is pushed in again. A manually-operated member is provided to disengage the sheet-changing mechanism so that the slider member then transports the entire pile out of the housing in order, for example, to enable the pile to be exchanged.
Picture-changing mechanisms that can be rendered inoperative are relatively complicated and, when they are in their operative condition, do not allow reliable picture-changing every time.
The problem on which the invention is based is to provide a sheet-changer of the type mentioned in the introduction in which the removal of the picture remaining in the housing is effected in a simpler manner.
To solve this problem there is proposed a device for the cyclic rearrangement of a pile of sheets having a housing with a viewing window and a slider member that can be pulled out of the housing and pushed back into the housing again parallel thereto and having a sheet-changing mechanism by means of which one sheet in the pile is retained in the housing while the slider member transports the remainder of the pile out of the housing, means being provided to take the sheet remaining in the housing out of the housing in the same direction as the slider member. The separate operations of removing an individual sheet and removing the remainder of the pile allow extremely simple solutions which do not depend on inactivating the changing mechanism.
In a first preferred solution, these means comprise an "auxiliary slider member" which can be actuated in the same direction as the slider member when the slider member is out and pushes the remaining sheet "after" the pile.
In a second preferred solution, the arrangement is such that when there is more than one sheet in the changer, the latter always "changes", thus, one picture always remains in the housing. If, however, the remainder of the pile is removed from the slider member when it has been pulled out, then when the slider member is pushed back into the housing again the sheet remaining in the housing is transported by the slider member as it is pulled out again and can be removed therefrom.
The attached drawings show an example of this construction in substantially schematic form. As regards the details of the construction of a complete sheet-changer, a person skilled in the art can refer to the publication mentioned in the introduction and the present invention can be applied to the embodiments thereof.
The attached drawings are as follows:
FIG. 1 shows a substantially diagrammatic longitudinal section through a first embodiment, the slider member having been pushed into the housing,
FIG. 2 shows the first embodiment in a substantially diagrammatic partial horizontal section,
FIG. 3 shows a cross-section through the separator bar from FIG. 2,
FIG. 4 shows a further embodiment in a sectional representation similar to FIG. 1, and
FIGS. 5 and 6 show a final embodiment, FIG. 5 from below, and FIG. 6 in a longitudinal section similar to FIG. 1.
In FIG. 1 the device comprises a housing 12 to the floor 218 of which there is secured a pressure-spring system having a first pair 24 of spring arms and a second pair 32 of spring arms, which system presses a pile 182 against a viewing window 35. The slider member is substantially in the form of a frame and has front wall that includes a grip part 48, from which wall two side pieces of L-shaped cross-section extend into the housing 12 and, near their inside ends, are connected by a tra
REFERENCES:
patent: 2577366 (1951-12-01), Reiss
patent: 3234673 (1966-02-01), Cook
patent: 3568345 (1971-03-01), Grosse
patent: 3797144 (1974-03-01), Weggeland
patent: 4242820 (1981-01-01), Ackeret
patent: 4245417 (1981-01-01), Ackeret
patent: 4254567 (1981-03-01), Koller
patent: 4550516 (1985-11-01), Ackeret
patent: 4674209 (1987-06-01), Ackeret
Contreras Wenceslao J.
Ingerman Jeffrey H.
Licinvest AG
Mancene Gene
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