초록 ▼

Apparatus is disclosed for opening the major and minor flaps of a box container being conveyed on an article loading machine designated generally as (A). The apparatus includes a flap opening foot (54) carried on the end of a rocker shaft (46) which is, in turn, carried on a carriage (48). The end o

Apparatus is disclosed for opening the major and minor flaps of a box container being conveyed on an article loading machine designated generally as (A). The apparatus includes a flap opening foot (54) carried on the end of a rocker shaft (46) which is, in turn, carried on a carriage (48). The end of the rocker shaft is attached to a bell-crank lever having an arm (80) and a pin (82) which travels in a cam slot (52) formed in an elongated guide plate (50). The guide plate (50) is clamped onto the edge of a side flap engaging plate (68). The slot (52) is contoured to impart a rocking motion to the foot (54) through the bell-crank linkage so that the foot dips under a closed flap (16a) of the box and lifts it toward an open position. An elastic cord (110) engages the flap and retains it in the open position. A rear minor flap opening device is illustrated at (102) which includes a claw (104). The arm (102) is pivotable and as the box (16) is conveyed therebeneath, the claw (104) catches a closed end flap (16d). The forward conveyance of box (16) causes the flap to unfold toward its open position and when engaged by the elastic cord (110) the flap is pushed fully open and held therein. The side flaps (16d) and (16c) remain held by flap engaging pairs of plates (68) and (69).

대표청구항 ▼

In an article packing machine of the type having a container conveyor on which boxes are conveyed to be loaded with articles, an article conveyor for conveying articles to an article loading station, a grid set at the article loading station which receives the articles and arranges the articles for

In an article packing machine of the type having a container conveyor on which boxes are conveyed to be loaded with articles, an article conveyor for conveying articles to an article loading station, a grid set at the article loading station which receives the articles and arranges the articles for loading and packing of the articles in said boxes, said boxes being of the type having front and rear end flaps and side flaps for closing the top of the box, apparatus for opening the flaps of the boxes to insure the box top is open for loading comprising: a flap opening mechanism adapted for being carried on a frame of said machine; a movable flap opening engagement means carried by said mechanism for movement in a prescribed motion to engage a closed end flap and move said end flap toward an open position; programmed control means carried by said assembly and connected to said flap opening means for moving said flap opening means in said prescribed motion; and elongated elastic cord means carried above said box along said conveyor and which yields to the lifting of said closed end flap while forcing and retaining said flap open.