Lockset having improved torque blade construction

Details Lockset having improved torque blade construction Lockset having improved torque blade construction

1977-05-18

1978-07-18

Wolfe, Robert L.

Locks

Operating mechanism

Key

70DIG42, 70DIG60, E05B 1704

Patent

active

041007743

ABSTRACT:
A lockset of the type having a bolt reciprocal from and to a door edge by an operating mechanism including a crank hub and locks at opposite door faces has tubular torque blades between the locks and crank hub for transmitting rotative motion from the locks to the crank hub and ultimately to the bolt for the bolt reciprocations. Both of the torque blades have tubular inner ends of D-shaped cross section with one extending axially a major part of a crank hub D-shaped cross section axial opening and telescoping the other within the crank hub. Outer enlarged tubular ends of the torque blades are telescoped by ends of lock plugs of the respective locks and have partially circumferentially extending slots formed therein receiving radial tongues of washer-like members positioned circumferentially over the lock plug ends. Thus, the torque blade inner ends are single position, rotative drive connected to the crank hub and outer ends thereof are lost motion drive connected to the locks. If a single lock is used with an inside hand operator, a single torque blade may have lost motion connection to the lock, extend completely through the crank hub and be received in the inside hand operator in direct rotative drive therebetween.

REFERENCES:
patent: 1380116 (1921-05-01), Solaini
patent: 2580026 (1951-12-01), Jacobi
patent: 2677266 (1954-05-01), Hagstrom
patent: 3851508 (1974-12-01), McCurdy

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