Spring cartridge clamp for inkjet printer carriage

Details Spring cartridge clamp for inkjet printer carriage Spring cartridge clamp for inkjet printer carriage

1993-04-30

1995-02-21

Fuller, Benjamin R.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

347 86, 312 963, G01D 1516, G11B 3306

Patent

active

053920635

ABSTRACT:
A unitary latch assembly secures all four cartridges of an inkjet printer inside their respective cartridge compartments of cartridge holder by means of a metallic spring and four forwardly facing latch ends separated by five respective forwardly facing supporting ends. Each latch end is connected to its two adjacent supporting ends by a serpentine arm defined by suitable radiused cutouts in the stamped spring to provide a shape that approximates a constant stress geometry. Each supporting end is terminated by a straight edge which is inserted into a corresponding slot at the upper rear of cartridge holder; because the latch assembly is a single unit, only one assembly operation is required for all four cartridge compartments. Each latch end is provided with a cam molded of a low friction material and shaped in the form of a horizontal section of an inclined cylinder. A lower tangential plane on the cylindrical surface intersects the plane of the latch end at an oblique angle, thereby producing a sideways force component to maintain a datum surface on an upper side edge of the cartridge in contact with a corresponding supporting surface on an interior side wall of the cartridge holder.

REFERENCES:
patent: 4703333 (1987-10-01), Hubbard
patent: 4736213 (1988-05-01), Piatt et al.
patent: 4755836 (1988-07-01), Ta
patent: 4844564 (1989-07-01), Price, Sr. et al.
patent: 4872026 (1989-10-01), Rasmussen

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