Field-reversible cabinet latch lock
AssigneeFrank J. Martin Company
InventorFrank J. Martin
Life of this patent
Estimating the term…
Abstract
A four-way, field-reversible self-latching cabinet lock includes a cylinder and plug assembly shell that is rotatable with respect to a bolt housing cover for the lock. A locking device is provided to fix the cylinder and plug assembly shell in one of four orthogonal positions with respect to the bolt housing cover. The bolt housing cover is receivable by a bolt housing and conventional self-latching latch bolt. In this manner, pins in the cylinder and plug assembly may be retained in a desirable vertical position while a throw of the bolt can be adjusted to vertical, inverted, left-hand, and right-hand positions in the field without special tools or additional parts.
Claims10
A four-way, field-reversible self-latching cabinet lock, comprising:
- a substantially planar bolt housing cover defining a substantially central aperture and a radially directed bore penetrating the aperture;
- a substantially hollow cylinder and plug assembly shell having a rear wall defining a circular plug aperture registrable with the central aperture and a rearwardly directed hub extending axially away from the plug aperture and sized for rotational receipt in the central aperture so that the shell is journaled for rotation with respect to the bolt housing cover;
- locking means for rotationally retaining and releasing the shell with respect to the bolt housing cover in one of four orthogonal operating positions;
- a cylinder and plug assembly removably received in the shell;
- a bolt housing reciprocally receiving a spring-biased latch bolt, the bolt housing adapted to removably receive the bolt housing cover;
- a rotary cam having a rear side operationally connected to the bolt and an obverse front side having a pair of transverse rebates for operational receipt of a first side of a cam driver;
- and,
- a cam driver operationally coupled to the cylinder and plug assembly wherein the cam driver has a first portion for selective rotary connection and synchronization with the rebates, whereby the locking means can be operated to permit rotation of the shell to any one of the four orthogonal operating positions so as to maintain orientation of pins in the plug in a desirably vertical position whether the bolt is in an up, down, left, and right extending position.
A field-reversible self-latching cabinet lock, comprising:
- a bolt housing cover defining a central aperture;
- a cylinder and plug assembly shell having a rear wall defining a circular plug aperture registrable with the central aperture and a rearwardly directed hub extending axially through and away therefrom so that the shell is journaled for rotation with respect to the bolt housing cover;
- locking means for selectively retaining and releasing the shell with respect to the bolt housing cover in one of a plurality of operating positions;
- a cylinder and plug assembly removably received in the shell;
- a bolt housing reciprocally receiving a spring-biased latch bolt, the bolt housing adapted to receive the bolt housing cover;
- a rotary cam having a rear side adapted for operational connection with the bolt and an obverse front side having means for operational receipt of a cam driver;
- and,
- a cam driver operationally coupled to the cylinder and plug assembly wherein the cam driver has a first portion for selective rotary connection and synchronization with the cam front side, whereby the locking means can be operated to permit rotation of the shell to any one of the operating positions so as to maintain orientation of pins in the plug in a desirably vertical position whether the bolt is in an up, down, left, and right extending position.
Dependencies are inferred from the claim text.