Detention cell locking system
AssigneeGlitsch, Inc.
InventorLloyd McConnell
Life of this patent
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Abstract
A detention cell locking system affording improved securement and reliability in the locking network of multiple detention cell doors. Mechanical actuation linkages are interconnected for motion responsive to either select manual, mechanical, or electrical signals actuating a DC motor drive. The locking mechanism incorporates an elongate toggle plate mounted to a carriage plate and a pair of cell door support rollers forming part of a mechanical locking system. The toggle plate assembly on the carriage plate permits a turning moment to be generated for lost motion actuation which effects locking and unlocking of the detention cell doors. A control network determines the length of time that the DC motor is electrically actuated and disengages the power to the motor during manual mechanical actuation.
Claims26
An improved detention cell looking system of the type utilizing a detention cell door having an upper supporting drive carriage for the movement thereof and mechanical linkage for locking said cell door in both the open and closed positions, said drive carriage being actuated by an electric drive assembly and imparting locking actuation to at least one vertical locking bar and a second carriage locking member, the improvement comprising first and second toggle plates mounted to said drive carriage and adapted for pivotal engagement one with the other and lost motion actuation in association therewith for both locking and unlocking said first mechanical linkage and said vertical locking bar.
An improved method of locking and unlocking detention cells of the type wherein a cell door is suspended from a supporting carriage with mechanical linkage for the movement thereof between locked and unlocked positions, said carriage being actuated by an electric drive assembly imparting locking actuation to at least one vertical locking bar and a second carriage locking member, the improvement comprising the steps of:
- providing first and second toggle plates adapted for pivotal actuation one with the other;
- mounting said toggle plates within said carriage assembly in position for pivotal engagement with said mechanical linkage disposed relative to said cell door for the locking and unlocking thereof.
Dependencies are inferred from the claim text.