Material or article handling – Apparatus for moving intersupporting articles into – within,... – Stack forming apparatus
Patent
1993-03-03
1995-02-07
Huppert, Michael S.
Material or article handling
Apparatus for moving intersupporting articles into, within,...
Stack forming apparatus
4147904, 4147911, 414907, 4147922, B65G 5708
Patent
active
053870778
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to an apparatus for handling signatures transported from a printing press or the like so as to pile the signatures into small stacks and pile such small stacks of signatures into a large stack.
BACKGROUND ART
For example, Unexamined Japanese Patent Publication SHO 63-171765 for the specification of U.S. Pat. No. 4,725,180 already discloses a handling apparatus of this type. This conventional apparatus has a receiving unit for piling on a receiving plate a required number of signatures (sheets of printed paper, folded sheets of paper) delivered from a printing unit, and a stacking unit disposed below the receiving unit and movable upward and downward. An upward feed plate, which is movable upward and downward, is provided laterally adjacent to the stacking unit. A collecting unit is further disposed above this feed plate.
A small stack of signatures as piled on the receiving plate is transferred onto the stacking unit disposed therebelow. The small stack of signatures on the stacking unit is delivered onto the upward feed plate by a pusher plate and then into the collecting unit upon rising the feed plate. Such small stacks are piled in layers into a large stack within the unit.
However, the conventional apparatus has drawbacks. The apparatus requires much time for downwardly delivering the small stack of signatures from the receiving plate to the stacking unit, pushing the stack onto the upward feed plate and further transport. Stacks of signatures are liable to collapse during transport, and the lowermost of the stacked signatures is susceptible to damage.
Further because the uppermost signature of the small stack is in a free state during the transfer from the receiving plate to the stacking unit, the signature is likely to slip out of place and to be further stacked in this state. When small stacks are piled into a large stack in the collecting unit, the folds of signatures of small stacks become bulky, permitting slippage of signatures or causing jamming during transport. Consequently, signatures will be stacked up with some remaining out of register with the others so as to become soiled, damaged or bent and to result in an impaired quality, and hence problems.
An object of the present invention, which has been accomplished in view of the foregoing situation, is to provide a signature handling apparatus which is adapted to efficiently transport signatures as stacked up from a receiving portion to a stacker and further to another stacker without collapsing and free of damage.
DISCLOSURE OF THE INVENTION
To fulfill the above object, the present invention provides the following technical means.
More specifically, the present invention provides a signature handling apparatus which is characterized in that the apparatus comprises: layers, stacked by the first stacker, and second stacker respectively, the pair of third stackers being reciprocatingly revolvable, stackers, signatures as stacked on the other third stacker being transferable to the second stacker.
Preferably, the first stacker has a receiving plate horizontally movable for opening or closing a bottom side thereof.
Preferably, the pair of third stackers are each mounted on a support member projecting from each of diametrically opposite sides of a revolving shaft rotatable about a vertical axis.
Preferably, the pair of third stackers are each fixed to a rotary member mounted on the support member and rotatable about a vertical axis.
Preferably, the rotary member is provided with a cylinder movable upward and downward and having a lift member, and the third stacker has a cutout aperture for the lift member to pass therethrough.
Preferably, the third stacker is provided with pressing pieces upwardly movable with the lift member while pressing a small stack of signatures from above.
Preferably, each of the pressing pieces is attached to a stretchable cylinder rotatably mounted on the third stacker.
Preferably, the first stacker is provided with a signature pressing member for lowering the small st
REFERENCES:
patent: 3450275 (1969-06-01), Carlen, Jr.
patent: 4197045 (1980-04-01), Stauber
patent: 4296684 (1981-10-01), Wangermann
patent: 4432685 (1984-02-01), Stauber
patent: 4514128 (1985-04-01), Hedrick
patent: 4547112 (1985-10-01), Steinhart
patent: 4657465 (1987-04-01), Aoki
patent: 4725180 (1988-02-01), Kasamotsu et al.
Tashima Shigenori
Yatsuka Kou
Gunze Limited
Huppert Michael S.
Morse Gregory A.
LandOfFree
Apparatus for handling signatures does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for handling signatures, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for handling signatures will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1106281