Patent ID: 6168336
Filing Date: 2001-01-02
Classification: B43K

Abstract:
A ballpoint pen comprising a shaft, a compensating body with compensating chambers and a supply wick mounted within the shaft, wherein ink is freely received in the shaft or ink is received in a cartridge in the shaft, and a writing tip at a front end of the ballpoint pen, a tube mounted at the writing tip, and a ball being mounted and rotatably supported in the tube, wherein the tube has a ball bed and the ball is configured to rest on the ball bed in individual points, wherein the ball bed is a square embossment having four support edges, wherein each support edge forms one of the individual points for supporting the ball, wherein the tube has a continuous ink duct, wherein the ink duct is configured as a free throughbore without an additional core body or ink conductor, wherein the supply wick extends axially completely through the compensating body in an area of the compensating chambers, wherein the compensating body has channels configured to provide communication between the wick and the compensating chambers, wherein an ink chamber is defined in the shaft and a closing means for the ink chamber is mounted in the shaft, wherein an end of the wick protrudes beyond the closing means of the ink chamber and ends within the ink chamber for absorbing ink, and wherein the tube is pressed with an end thereof into a front connecting end of the supply wick.