Thermochromic writing instrument having a separable eraser
AssigneeHeemangnote Co., Ltd.
InventorSeung Jae LIM
Life of this patent
Estimating the term…
Abstract
A thermochromic writing instrument capable of causing curiosity and interest of a user by configuring an eraser to be easily separated from the main body of the thermochromic writing instrument and to be shaped into various character dolls. A rotation member is inserted into a pen body and a hollow upper cover is detachably coupled to an outside of the upper portion of the pen body, a first eraser is connected to the rotation member by a connection member, a connection portion of an operation member is disposed in a groove formed at one side of the side wall of the pen body, the first body portion of the operation member is inserted into the pen body and a clip portion of the operation member is exposed to the outside of the pen body.
Claims10
A thermochromic writing instrument including:
- a hollow cylindrical pen body 20 which has upper and lower openings;
- a pen shim 80 which is inserted into the pen body 20 and accommodates a thermochromic ink composition I therein;
- a spring 86 which elastically supports the pen shim 80;
- and a lower cap 90 which is fastened to a lower portion of the pen body 20 in a threaded manner, characterized by comprising:
- an operation member 50 which is inserted into the pen body 20 so that a portion of the operation member is exposed to the outside, the operation member 50 including:
- a cylindrical first body portion 51, a connection portion 52 extending from a side of the first body portion 51 in a radial direction by a predetermined length perpendicular to the first body portion 51, and a clip portion 53 integrally formed on a free end portion of the connection portion 52;
- a rotation member 60 which is rotatably inserted into the pen body 20, the rotation member 60 including:
- a cylindrical second body portion 61 and an enlarged portion 62 being enlarged outwardly from the lower portion of the second body portion 61 in the radial direction so as to have an outer diameter larger than the outer diameter of the second body portion 61;
- a hollow upper cover 30 which is detachably coupled to an upper outside of the pen body 20;
- a first eraser 40 which rubs with the handwriting written by the thermochromic writing instrument and thermally discolors the handwriting using the rubbed heat generated at this time;
- and
- a connection member 70 which connects the first eraser 40 and the rotation member 60.
A thermochromic writing instrument including:
- a hollow cylindrical pen body 20 which has upper and lower openings;
- a pen shim 80 which is inserted into the pen body 20 and accommodates a thermochromic ink composition I therein;
- a spring 86 which elastically supports the pen shim 80;
- and a lower cap 90 which is fastened to a lower portion of the pen body 20 in a threaded manner, characterized by comprising:
- an operation member 50 which is inserted into the pen body 20 so that a portion of the operation member is exposed to the outside, the operation member 50 including:
- a cylindrical first body portion 51, a connection portion 52 extending from a side of the first body portion 51 by a predetermined length perpendicular to the first body portion 51 in a radial direction, and a clip portion 53 integrally formed on a free end portion of the connection portion 52;
- a rotation member 60 which is rotatably inserted into the pen body 20, the rotation member 60 including:
- a cylindrical second body portion 61 and an enlarged portion 62 being enlarged outwardly from the lower portion of the second body portion 61 in the radial direction so as to have an outer diameter larger than the outer diameter of the second body portion 61;
- a hollow upper cover 30 which is coupled to an upper outside of the pen body 20;
- an eraser means for rubbing the handwriting written by the thermochromic writing instrument and thermally discolors the handwriting using the rubbed heat occurring at this time;
- and
- a pressing portion which exposes the pen shim 80 to a lower portion of the pen body 20 and at the same time is capable of performing pressing and rotating operations;
- and
- a connection member 70 which connects the pressing portion and the rotation member 60 to each other.
Dependencies are inferred from the claim text.