Package making – Methods – Wrapping contents including cover forming
Patent
1979-05-04
1981-07-21
Sipos, John
Package making
Methods
Wrapping contents including cover forming
53232, B65B 1122
Patent
active
042791162
ABSTRACT:
Method of and apparatus for wrapping reams of paper or the like in which the ream being wrapped is placed on an elevator mechanism at a lower level and raised by the elevator mechanism to an upper level. The elevator mechanism comprises a central support and two outboard supports extending endwise of the ream. The outboard supports are movable inwardly from an outer position wherein they are spaced outwardly from the central support. The outboard supports occupy their outer position as the ream is placed on the supports and while the ream is being raised. As the ream is raised, it engages a wrapper sheet and portions of the wrapper sheet fold down on the sides of the ream. When the ream is raised, underfolders move in under the ream from opposite sides of the ream to fold portions of the sheet in under the bottom of the ream. The outboard supports move inwardly toward the central support to clear the way for the underfolders to move in, and are then returned to the lower level and moved out to their outboard position. The central support is moved down to the lower level and the underfolders move into the region vacated by the central support. The ream is then pushed off the underfolders and the latter are retracted. As the ream is pushed forward, the ends of the wrapper sheet are tucked in on the ends of the ream by moving a pair of rearward tuckers forward from a retracted position and by moving the ream past a pair of fixed forward tuckers. The rearward tuckers are moved outwardly away from the ends of the ream as they return to retracted position to a position clear of the next ream being raised.
REFERENCES:
patent: 2146997 (1939-02-01), Smith
patent: 3006119 (1961-10-01), Fingerhut
patent: 3212230 (1965-10-01), Coates
patent: 3507091 (1970-04-01), Mizelle
patent: 3857221 (1974-12-01), Schmermund
patent: 3861120 (1975-01-01), Gordon
patent: 4035990 (1977-07-01), Hallam
patent: 4078363 (1978-03-01), Panzi
patent: 4083165 (1978-04-01), Maldina
patent: 4137691 (1979-02-01), Takahashi
Horsman Dennis P.
James Robert C.
Sorenson Richard D.
Hayssen Manufacturing Company
Sipos John
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