Metal working – Method of mechanical manufacture – Assembling or joining
Patent
1987-05-07
1988-08-16
Eley, Timothy V.
Metal working
Method of mechanical manufacture
Assembling or joining
29468, 29253, 29272, B23P 1100
Patent
active
047633956
ABSTRACT:
A tool and a method for loading pins into pin holes in the bore of the cylinder of a tumbler lock is disclosed. The tool is an elongated rod with two rod sections, a loading section and a handle section having a greater circumference than the rod section to form a shoulder. A contiguous groove runs lengthwise through both rod sections and includes perpendicular pin holes in the loading section. A tapered blade is provided to slide in the groove. In use, the pins are loaded into predetermined pin holes in the loading section. The loading section is inserted into the cylinder bore until the shoulder of the handle section prevents further forward motion and aligns the rod pin holes with matching pin holes in the cylinder. The blade is pushed towards the cylinder and urges the pins from the rod holes into the cylinder pin holes. With the blade holding the pins in the cylinder pin holes, the rod is turned so that the pins are now held in place by the rod itself. The lock plug is then inserted into the cylinder bore from the opposite end, temporarily mating with the rod end and pushing out the rod to replace it and hold the pins in their pin holes. The lock cylinder, loaded with pins and plug, is now ready to be placed in the door.
REFERENCES:
patent: 3664007 (1972-05-01), Schlage
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