A writing instrument comprising a housing extending in a longitudinal direction and having a radial direction, and first and second concentric writing tips, the second writing tip arranged around the first writing tip, each writing tip received in the housing and able to assume an operating configuration, the housing comprising, at a longitudinal end, a deformable nose at least in the radial direction, the deformable nose comprising at least one slit extending in the longitudinal direction, the deformable nose not being deformed when only the first writing tip is in an operating configuration and the deformable nose being deformed when the second writing tip is in an operating configuration, the deformable nose comprising an exit opening of the first and second writing tips, the diameter of the exit opening being greater than the diameter of the first writing tip and less than that of the second writing tip.

A retractable liquid dispenser device comprising an outer body having a retractable mechanism slidably supporting a liquid dispenser. The liquid dispenser has a supply reservoir and a discharge reservoir with a reservoir valve disposed therebetween. A retractable valve is located in proximity to an open first end of the outer body. A first depression of the retractable actuator opens the retractable valve and moves the liquid dispenser into the extended position for enabling a depression of a distal end of the liquid applicator to open the dispensing valve to permit liquid to flow from the supply reservoir into the dispensing reservoir to dispense the applicator liquid from the distal end of the liquid applicator. A second depression of the retractable actuator moves the liquid dispenser into the retracted position and closes the retractable valve to enclose the distal end of the liquid applicator within the outer body.

Provided herewith is a marker that has multiple colors and retracts and seals the ink reservoirs. Also provided is a method of selecting a color.

A slide-type writing instrument having a drying-prevention device. The slide-type writing instrument includes a pen housing (10); a button clip part (20); an ink holder (30) having a cam protrusion (70); a sealing member (40) including a cover (41) and a fixing cap (45); a spring member (50); and a guide member (60) configured to guide the cover (41). The sealing member (40) includes an inner soft tube (40a) formed of a soft material and in the shape of a hollow tube, and an outer hard tube (40b) formed of a hard material and in the shape of a hollow tube and externally surrounding the soft tube (40a). The soft tube (40a) and the hard tube (40b) are coupled to each other to form a dual cross-section structure, and a lower end of the soft tube (40a) further extends than a lower end of the hard tube (40b).

A writing instrument may include a self-healing sealing component to prevent the internal components of the writing instrument from drying out.

The present disclosure relates to a writing instrument comprising a self-healing seal component to prevent drying out of the writing instrument and an elastomeric support to protect the self-healing seal component.

A writing instrument having an automatic sealing structure that may reduce an entire diameter of the writing instrument due to a decrease in a size of a ball shutter, thus to improve grip feeling of a user. The writing instrument having an automatic sealing structure includes: a body case having a front opening formed in one end thereof; a knock part coupled to the other end of the body case so as to make a nib protrude from or be retracted into the front opening of the body case by a pushing operation thereof; a cartridge inserted into the body case together with a spring in a state in which the knock part and the nib are coupled to both ends thereof, respectively; at least one O-ring fixedly fitted in the body case; a holder fixedly fitted in the body case so that one end thereof is covered by the O-ring; a ball shutter pivotally coupled to the holder to allow the nib to protrude or be sealed according to the pivoting thereof; and a link which is slidably fitted in the holder, and has a cutaway piece formed by protruding a circumferential portion of a part of a hollow column end thereof to allow the ball shutter to be pivoted.

Provided herewith is a marker that has multiple colors and retracts and seals the ink reservoirs. Also provided is a method of selecting a color.

A writing instrument having an automatic sealing structure, in which a hinge part of a holder has projection jaws formed thereon having a role of a stopper that can prevent a hinge shaft from being excessively pivoted, thereby more effectively preventing ink from drying out due to complete sealing of the nib. The writing instrument having an automatic sealing structure, including: a body case having a front opening formed in one end thereof; a knock part coupled to the other end of the body case so as to make a nib protrude from or be retracted into the front opening of the body case by a pushing operation thereof; a cartridge inserted into the body case together with a spring in a state in which the knock part and the nib are coupled to both ends thereof, respectively; at least one O-ring fixedly fitted in the body case; a holder fixedly fitted in the body case so that one end thereof is covered by the O-ring; and a ball shutter pivotally coupled to the holder to allow the nib to protrude or be sealed according to the pivoting thereof, wherein the ball shutter includes hinge shafts formed in a fan shape, and hinge parts of the holder, in which the hinge shaft is pivotally positioned, have projection jaws formed thereon by protruding inwardly to limit a pivot range of the hinge shaft.

A slide-type writing instrument having a drying-prevention device. The slide-type writing instrument includes a pen housing (10); a button clip part (20); an ink holder (30) having a cam protrusion (70); a sealing member (40) including a cover (41) and a fixing cap (45); a spring member (50); and a guide member (60) configured to guide the cover (41). The sealing member (40) includes an inner soft tube (40a) formed of a soft material and in the shape of a hollow tube, and an outer hard tube (40b) formed of a hard material and in the shape of a hollow tube and externally surrounding the soft tube (40a). The soft tube (40a) and the hard tube (40b) are coupled to each other to form a dual cross-section structure, and a lower end of the soft tube (40a) further extends than a lower end of the hard tube (40b).