Typewriting machines – Means auxiliary to typewriting function – Frame – casing – or support for typewriter
Patent
1984-06-11
1986-10-14
Pieprz, William
Typewriting machines
Means auxiliary to typewriting function
Frame, casing, or support for typewriter
400691, B41J 2902
Patent
active
046169440
ABSTRACT:
A printer frame assembly having snap-together parts includes a base member, two side frame members, resilient cushions and an impact platen. The base member has locating receptacles to position the side frame members and interlocking flexure latches to snap-lock with corresponding locking surfaces located on the two side frame members. The interlocking flexure latches provide a bias to align the side frame members in a front-to-back direction and lateral alignment channels to prevent lateral displacement. The resilient cushions are positioned between the bottoms of the side frame members and the base member to urge the interlocking flexure latches and locking surfaces into secure engagement and to eliminate any clearances between the side frame members and the base member. The impact platen serves as a structural member of the frame and is positioned intermediate the two side frame members. The method of frame assembly comprises locating the resilient cushions on the base member, snapping the side frame members into respective locating receptacles and flexure latches of the base member, thereby trapping the resilient cushions, and locking the impact platen between the two side frame members.
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Lentz et al, "Compressible Seal," IBM Technical Disclosure Bulletin, vol. 26, No. 3B, pp. 1662-1663, 8/83.
Galatha et al, "Snap-in . . . Mounting", IBM Technical Disclosure Bulletin, vol. 26, No. 6, p. 2702, 11/83.
Wilzbach, "Cover Latch" IBM Technical Disclosure Bulletin, vol. 24, No. 8, pp. 4151-4152, 1/82.
Galatha Matthew J.
Iorio David V.
Robinson Carl W.
Abzug J. L.
Coffman E. R.
International Business Machines - Corporation
Meyers S. J.
Pieprz William
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