The part for mounting on the finger is provided so as to be integral with a linking member; by means of building-in, folding, inserting and removing, and winding, the holder is made deformable to a carried condition when not in use; a necessary shortest dimension of the writing tool in the written condition is divided into at least two sections, i.e., an axis body 1 and a cap 2; and then, the axis body 1 and the cap 2 are overlapped with each other by means of folding or storing to thereby shorten the writing tool in a retained condition, and the writing tool in the written condition is reversibly movable in a predetermined range to thereby make an angle of the writing tool adjustable.

The part for mounting on the finger is provided so as to be integral with a linking member; by means of building-in, folding, inserting and removing, and winding, the holder is made deformable to a carried condition when not in use; a necessary shortest dimension of the writing tool in the written condition is divided into at least two sections, i.e., an axis body 1 and a cap 2; and then, the axis body 1 and the cap 2 are overlapped with each other by means of folding or storing to thereby shorten the writing tool in a retained condition, and the writing tool in the written condition is reversibly movable in a predetermined range to thereby make an angle of the writing tool adjustable.

A writing instrument attachment includes first and second band portions and a coupling mechanism. The first band portion include a first inner surface defining a passageway along a longitudinal axis and a first outer surface having a first outer radius that encompasses the first inner surface. The second band portion is integrally affixed to an end of the first band portion. The second band portion includes a second inner surface defining a chamber along the longitudinal axis having an inner radius that is greater than the first outer radius. The coupling mechanism includes a groove located at a first position on the second inner surface and a tab located at a second position on the outer surface. The first position and the second position are collinear.

A writing instrument attachment includes first and second band portions and a coupling mechanism. The first band portion include a first inner surface defining a passageway along a longitudinal axis and a first outer surface having a first outer radius that encompasses the first inner surface. The second band portion is integrally affixed to an end of the first band portion. The second band portion includes a second inner surface defining a chamber along the longitudinal axis having an inner radius that is greater than the first outer radius. The coupling mechanism includes a groove located at a first position on the second inner surface and a tab located at a second position on the outer surface. The first position and the second position are collinear.

The present disclosure relates to a grip positioning device that includes a tool receptacle that forms a loop, the loop delineating a tool opening through which a tool may be extended, and a plurality of digit receiving elements each forming a loop, the loops each delineating a finger opening through which a digit of a user may be extended, the digit receiving elements coupled to and positioned about the tool receptacle. The tool receptacle and the digit receiving elements may be constructed from a unitary piece of material and the grip positioning device may further include separators that partition the digit receiving elements from the tool receptacle.

A handheld topical applicator. The handheld topical applicator is preferably adapted to release a precise amount of liquid onto a surface and is preferably used for various applications such as marking a surface and/or providing a proper amount of dosage for medicinal applications. The handheld topical applicator may comprise a liquid delivery system for dispensing a precise amount of liquid onto various surfaces, a projecting/retracting mechanism, and an audible and/or tactile physical feedback mechanism. The projecting/retracting mechanism may controllably retract or protrude a nib into and out of the housing, and the audible/physical feedback mechanism may provide either a physical and/or audible click once a desired amount of liquid transfers onto the surface.

A handheld topical applicator. The handheld topical applicator is preferably adapted to release a precise amount of liquid onto a surface and is preferably used for various applications such as marking a surface and/or providing a proper amount of dosage for medicinal applications. The handheld topical applicator may comprise a liquid delivery system for dispensing a precise amount of liquid onto various surfaces, a projecting/retracting mechanism, and an audible and/or tactile physical feedback mechanism. The projecting/retracting mechanism may controllably retract or protrude a nib into and out of the housing, and the audible/physical feedback mechanism may provide either a physical and/or audible click once a desired amount of liquid transfers onto the surface.

Cam faces 24a and 24b are continuously formed in a circle on upper and lower faces which are perpendicular to an axial direction of a rotatable cam 24 which constitutes a rotational drive mechanism 21. Elastic members 23b are formed integrally with a holder member 23 for rotatably supporting the rotatable cam 24 to extend in the axial direction, and the first fixed cam and second fixed cam 23c and 23d having a small number of cam faces at butts and tips of the elastic members are arranged to face each other via the upper and lower cam faces 24a and 24b of the rotatable cam 24. The rotatable cam 24 is retreated and moved forward in the axial direction by writing pressure applied to a writing lead to be rotationally driven in one direction and rotational motion of the rotatable cam 24 is transmitted to the writing lead.

Cam faces 24a and 24b are continuously formed in a circle on upper and lower faces which are perpendicular to an axial direction of a rotatable cam 24 which constitutes a rotational drive mechanism 21. Elastic members 23b are formed integrally with a holder member 23 for rotatably supporting the rotatable cam 24 to extend in the axial direction, and the first fixed cam and second fixed cam 23c and 23d having a small number of cam faces at butts and tips of the elastic members are arranged to face each other via the upper and lower cam faces 24a and 24b of the rotatable cam 24. The rotatable cam 24 is retreated and moved forward in the axial direction by writing pressure applied to a writing lead to be rotationally driven in one direction and rotational motion of the rotatable cam 24 is transmitted to the writing lead.

A writing instrument includes a shaft barrel and a grip provided at part of the shaft barrel. The grip has a cylindrically shaped inside shaft part and a cylindrically shaped outside shaft part arranged at the outside of the inside shaft part, thinner than the inside shaft part, and made of a nonviscoelastic plastic. A space part is provided between the inside shaft part and the outside shaft part.