A mechanical pencil with the function of automatic core rotation

Abstract

The invention relates to a mechanical pencil with the function of automatic core rotation, which includes a pen holder assembly and a pen core assembly arranged in the pen holder assembly. Grip, the grip can move axially within a certain range relative to the pen holder assembly, a driving mechanism is provided between the grip and the rotating body, and the driving mechanism converts the axial reciprocating motion of the grip into a rotating body The rotary motion is transmitted to the refill assembly to make the refill rotate. Compared with the prior art, the mechanical pencil of the present invention transfers the driving part that drives the rotating body to the grip sleeve, so that the pen core does not need to be telescopically moved on the pen holder assembly, so that writing is smoother.

Description

technical field [0001] The invention relates to a mechanical pencil with the function of automatic core rotation. Background technique [0002] When using a mechanical pencil for writing, people are often used to holding the barrel at an angle. In this way, under the condition that the pen holder does not rotate, the front end of the pen core will be ground into an inclined slope, so that the written pen marks will gradually become thicker. At the same time, due to the change of pressure, the shade of the pen mark will also change from thick to light. Moreover, as the writing continues, the edges of the pen marks will gradually become unclear. In order to write uniform and beautiful pen marks, people need to constantly turn the pen holder, which really brings inconvenience. [0003] In order to solve the above problems, the Chinese patent CN101460314A has been improved on the basis of the traditional mechanical pencil, and a rotating body with upper and lower cam surfaces...

AI Technical Summary

Problems solved by technology

[0005] When the mechanical pencil with the above-mentioned structure is writing, the refill assembly will continuously expand and move axially relative to the pen holder assembly, especially when starting and writing, the expansion and contraction of the refill assembly will cause the refill to stick when writing. movement, causing difficulty in writing

Moreover, the head of the front end of the pen core will move when writing, and the position of the pen can not be accurately controlled.

Images