An applicator includes a partition wall for partitioning between a storage chamber and a reservoir chamber, an application body that allows application of a liquid stored in the storage chamber, a relay member that transfers the liquid stored in the storage chamber passing through the partition wall toward the application body, a gas-liquid exchanging section formed at the partition wall for air-liquid exchanging with the liquid stored in the storage chamber, an occluding body that is disposed in the reservoir chamber, and in contact with the relay member for occluding the liquid, and a movement prevention section disposed at the relay member and/or the occluding body for preventing movement of the liquid held in the occluding body to the relay member.

Provided is an applicator that uses a stopper ring for temporary coupling between a front barrel and a barrel cylinder and can be easily positioned when coupling. Also provided is an applicator that can be improved in assembly performance during manufacturing.

An applicator which comprises: a barrel cylinder in which an application liquid is stored in a storage portion inside the rear part thereof; and an applying part arranged inside the front part of the barrel cylinder and supplies the applying part with the application liquid stored in the storage portion in the barrel cylinder, and is configured such that: a full coupling portion and a temporary coupling portion are formed on each of a front barrel and the barrel cylinder; the front barrel and the barrel cylinder each have an anti-rotation rib; the anti-rotation ribs are not engaged with each other in the initial coupled state before the temporary coupled state in which the temporary coupling portions of the barrel cylinder and the front barrel are engaged with each other; and, the anti-rotation ribs become engaged with each other in the fully coupled state in which the full coupling portions are engaged with each other.

The present disclosure relates to a writing instrument comprising a tubular body, a reservoir for an ink composition. The writing instrument comprises a nib comprising a switchable flow material, wherein the switchable flow material is configured to switch between a fluid flow preventing condition and a fluid flow enabling condition by a stimulus. The switchable flow material is configured to control flow of the ink composition from the reservoir to or towards a writing surface.

An applicator which comprises an application body arranged inside the front part of a barrel cylinder supplying the application body with the application liquid stored in a storage portion in the barrel cylinder, and is configured such that: a full coupling portion and a temporary coupling portion are formed on each of a front barrel and the barrel cylinder; the front barrel and the barrel cylinder each have an anti-rotation rib; the anti-rotation ribs are not engaged with each other in the initial coupled state before the temporary coupled state in which the temporary coupling portions of the barrel cylinder and the front barrel are engaged with each other; and, the anti-rotation ribs become engaged with each other in the fully coupled state in which the full coupling portions are engaged with each other.

Provide is a direct liquid type writing-brush pen that is equipped with a valve mechanism; and with which the ink tube is of replaceable cartridge type, and the writing brush tip is always impregnated with an appropriate amount of ink while the ink leakage being suppressed, whereby an excellent feeling of writing can be always given. A direct liquid type writing-brush pen, including a barrel, which holds a writing brush tip unit at the distal end part thereof; an ink cartridge, which is slidably and detachably fitted into the barrel from the basal end side thereof; a cap, which covers the writing brush tip unit; and a stopper, which is fitted to the basal end part of the barrel to slidably support the basal end part of the ink cartridge, which is protruded from the basal end side of the barrel, wherein, in the distal end part of the ink cartridge, a valve mechanism, which accommodates a valve core in a valve seat, is incorporated; in the valve seat, the distal end part of the valve core is removably connected to the basal end part of a relay core, which constitutes the writing brush tip unit; and on the circumferential face of a smaller diameter part of the valve seat, a sealing strip is formed.

Provide is a direct liquid type writing-brush pen that is equipped with a valve mechanism; and with which the ink tube is of replaceable cartridge type, and the writing brush tip is always impregnated with an appropriate amount of ink while the ink leakage being suppressed, whereby an excellent feeling of writing can be always given. A direct liquid type writing-brush pen, including a barrel, which holds a writing brush tip unit at the distal end part thereof; an ink cartridge, which is slidably and detachably fitted into the barrel from the basal end side thereof; a cap, which covers the writing brush tip unit; and a stopper, which is fitted to the basal end part of the barrel to slidably support the basal end part of the ink cartridge, which is protruded from the basal end side of the barrel, wherein, in the distal end part of the ink cartridge, a valve mechanism, which accommodates a valve core in a valve seat, is incorporated; in the valve seat, the distal end part of the valve core is removably connected to the basal end part of a relay core, which constitutes the writing brush tip unit; and on the circumferential face of a smaller diameter part of the valve seat, a sealing strip is formed.

A writing implement is configured to dispense material onto a work surface. The writing implement includes a body having a first end, a second end, and an inner surface. The writing implement also includes a nib coupled to the first end. The nib is configured to allow the material to be dispensed onto the work piece. The writing implement further includes a pressure regulating assembly coupled to the body. The pressure regulating assembly and the inner surface define a cavity configured to hold the material. The pressure regulating assembly is moveable relative to the body in response to a pressure change within the cavity.

A writing implement is configured to dispense material onto a work surface. The writing implement includes a body having a first end, a second end, and an inner surface. The writing implement also includes a nib coupled to the first end. The nib is configured to allow the material to be dispensed onto the work piece. The writing implement further includes a pressure regulating assembly coupled to the body. The pressure regulating assembly and the inner surface define a cavity configured to hold the material. The pressure regulating assembly is moveable relative to the body in response to a pressure change within the cavity.

A writing implement is configured to dispense material onto a work surface. The writing implement includes a body having a first end, a second end, and an inner surface. The writing implement also includes a nib coupled to the first end. The nib is configured to allow the material to be dispensed onto the work piece. The writing implement further includes a pressure regulating assembly coupled to the body. The pressure regulating assembly and the inner surface define a cavity configured to hold the material. The pressure regulating assembly is moveable relative to the body in response to a pressure change within the cavity.

A writing implement is configured to dispense material onto a work surface. The writing implement includes a body having a first end, a second end, and an inner surface. The writing implement also includes a nib coupled to the first end. The nib is configured to allow the material to be dispensed onto the work piece. The writing implement further includes a pressure regulating assembly coupled to the body. The pressure regulating assembly and the inner surface define a cavity configured to hold the material. The pressure regulating assembly is moveable relative to the body in response to a pressure change within the cavity.