Writing tool provided with a valve feeding device

Abstract

A writing tool comprises a body (2) provided with an ink container (3), an inking element (16) mounted on the end of the body (2) and a feeding device (19) consisting of a tube which is provided with an inner wall, connects the container (3) to the inking element (16) and penetrates into the container (3) through an opening, a valve (22) comprising a jamb (32) which is received in said tube and extended by a head (31), wherein the valve is slidingly mounted between a closed position in which said head (31) is applied to a shoulder bordering said opening and an open position in which the head (31) is remote from the shoulder. An interstice is arranged between the jamb and the tube inner wall in such a way that said jamb projects from the tube.

Description

technical field

[0001] The invention relates to a writing implement. Background technique

[0002] Japanese Patent Application Publication No. JP-07-214968 discloses a writing implement, including an ink cavity, a roller, a pipeline connecting the cavity and the roller, and a valve that can move between a closed position and an open position, The valve closes the tubing in the closed position and communicates the lumen to the rollers in the open position. A porous element is provided in the conduit between the roller and the valve. The valve is pierced with a hole which, in the open position, allows ink to flow from the lumen to the porous element which in turn inks the roller.

[0003] Writing instruments of this type are satisfactory, but have some disadvantages.

[0004] First, if figure 1 and 2 As shown in the above application, a portion of the roller is located within the conduit carrying the ink flow. In order for the roller to turn freely, a gap must be provided...

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