Print Hammer Pivot Pin
Original Publication Date: 1981-Jun-01
Included in the Prior Art Database: 2005-Feb-11
An oil-impregnated pivot pin 10 in hole 11 of printer hammer elements 1 is provided with a duct connecting the peak pressure zones of pin 10. The duct connection reduces the peaks of positive and negative pressure produced by the oscillation of the print hammer 12 which cause the oil film around pin 10 to be squeezed axially out of hole 11.