Package making – Closing packages and filled receptacles – By means adapted to engage outturned seam of package cover
Patent
1976-02-06
1977-05-31
McGehee, Travis S.
Package making
Closing packages and filled receptacles
By means adapted to engage outturned seam of package cover
B65B 720
Patent
active
040260909
ABSTRACT:
In an automatic carton closing machine means to support temporarily from below down-folded lateral top side flaps of each carton as it travels through forward machine section and its folded top flaps are there being anchored. Raisable and lowerable elevating head carries downwardly infolding top flaps folding means to fold top end flaps inward toward each other with this head at the carton top and then top side flaps downward thereover as carton advances to pass through forward flap anchorage equipment with the forward head section carrying some of this anchorage equipment. Such head-supported anchorage equipment includes elongated, relatively stiff plate structure which extends laterally along the carton path approximately at the elevation of the carton top so that as such side flaps are folded down and inward above the infolded top end flaps they are lapped over this plate structure as supporting means therebelow while thereafter permitting the carton to advance with slide out of this plate structure. In some forms this plate structure may be in the shape of a two-tined fork with each tine located beneath one of the down-folded side flaps. Downward biasing of the down-folded side flaps against such plate structure or stabilizing their positions to a transverse plane at the top of the carton may be provided by any suitable means, e.g., weighting means and/or magnetic means which creates forces of attraction down toward the plate structure when the latter is of paramagnetic material. The shape of the plate structure is such as to avoid interfering with anchorage means and equipment for application thereof.
REFERENCES:
patent: 3191353 (1965-06-01), Chidsey
patent: 3377767 (1968-04-01), Franz
McGehee Travis S.
The Loveshaw Corporation
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