Safety door mechanism

Details Safety door mechanism Safety door mechanism

1976-09-23

1978-06-13

Tollberg, Stanley H.

Article dispensing

Automatic control

Of article releasing outlet closure

221129, G07F 1100

Patent

active

040944409

ABSTRACT:
A safety door mechanism for use in combination with delivery bins of dispensing machines. A dispensing chamber having a top supply opening and a front delivery opening is provided with a delivery door pivoted about a horizontal axis near the top of the delivery opening and with a supply door pivoted about a horizontal axis near the front of the supply opening. The delivery door is normally positioned by gravity to close the delivery opening, while the supply door is positioned by gravity to normally clear the supply opening. A mechanical linkage cooperatively interconnects the doors so that when the delivery door is manually opened the linkage closes the supply door at a closing rate which initially exceeds the opening rate of the delivery door, and in a manner such that the supply opening is substantially closed before the delivery opening is accessible.

REFERENCES:
patent: 3174646 (1965-03-01), Johnson
patent: 3344953 (1967-10-01), Krakauer et al.
patent: 3901366 (1975-08-01), Schuller et al.
patent: 3940016 (1976-02-01), Krakauer

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