Print head operating mechanism
First Claim
1. In an apparatus for intermittently marking a substantially horizontal surface, including a frame, an elongated ink storing cartridge having a longitudinal axis, an ink transferring end portion and an ink pad at said end portion with a surface substantially perpendicular to the axis, a print head movably mounted on the frame independently of the cartridge, and a power operated mechanism connected to the print head for displacement thereof between marking and inking positions respectively engaging the horizontal surface and the surface of the ink pad at the ink transferring end portion of the cartridge, the improvement comprising means for mounting the cartridge on the frame in an inclined position extending downwardly from the ink pad surface at the ink transferring end portion with the axis thereof fixed at an acute angle to the horizontal surface.
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Accused Products
Abstract
Travel of a printing head between ink-receiving and marking positions is guided along an arcuate path by a fluid power piston device having a cylinder pivotally mounted at its forward end on the frame of the printing apparatus. The longitudinal axis of the ink storing cartridge engaged by the printing head in the ink-receiving positions, is inclined downwardly and is tangent to the travel path at the adjacent terminal end thereof.
12 Citations
11 Claims
- 1. In an apparatus for intermittently marking a substantially horizontal surface, including a frame, an elongated ink storing cartridge having a longitudinal axis, an ink transferring end portion and an ink pad at said end portion with a surface substantially perpendicular to the axis, a print head movably mounted on the frame independently of the cartridge, and a power operated mechanism connected to the print head for displacement thereof between marking and inking positions respectively engaging the horizontal surface and the surface of the ink pad at the ink transferring end portion of the cartridge, the improvement comprising means for mounting the cartridge on the frame in an inclined position extending downwardly from the ink pad surface at the ink transferring end portion with the axis thereof fixed at an acute angle to the horizontal surface.
- 10. In an apparatus for intermittently marking a substantially planar surface, including a frame, an elongated ink storage cartridge having an inclined longitudinal axis, an ink transferring end portion and an ink pad at said end portion with a surface substantially perpendicular to the axis, a print head mounted on the frame for movement independently of the cartridge, and a power operated device pivotally connected to the print head at a movable pivot for displacement thereof between marking and inking positions respectively engaging the planar surface and the surface of the ink pad in the end portion of the cartridge, the improvement comprising means mounting the cartridge on the frame for fixing said inclined axis thereof to the frame, means for guiding movement of the movable pivot along an arcuate path having a substantially constant radius of curvature and opposite terminal ends, and orienting means engageable with the print head at a second pivot fixed to the frame for angularly displacing the print head about said movable pivot in response to said movement along the arcuate path between said inking and marking positions, said opposite terminal ends of the arcuate path lying on tangents thereto which intersect at the fixed pivot, one of the said tangents being coincident with the fixed inclined longitudinal axis of the cartridge.
Specification