Writing tip for ball point pen has writing ball with roller bearing, and during writing, balls are pressed out of ball socket into ring groove, and back

摘要

The writing tip has a writing ball (1) with roller bearing, and the writing pressure of the ball is transmitted via several small balls (2) to a ball socket (3). Rolling movements of the writing ball analogue to the writing movement trigger the rolling movements of the roller bearing balls. During this process, a number of bearing balls is constantly pressed from the ball socket into a ring groove (4), formed by spring ring (5), and a corresponding number is moved from the groove into the ball socket.