Pen cap structure capable of preventing bad writing postures

Abstract

The invention discloses a pen cap structure capable of preventing bad writing postures. The pen cap structure comprises a pen point, a pen holder, a pen refill and a convex part, and is characterizedin that the convex part is formed in the holding position, far from a pen refill tip by (0.9-0.95) inches, of the pen holder; the height (phi4-phi2)/2 of the convex part is subjected to not shield thesight seeing the pen refill tip; the aperture phi3 of an inner hole of the convex part is equal to the outer diameter phi1 of the pen holder, that is, phi3 is equal to phi1, and transition fit or small interference fit is adopted; the right edge of the convex part leans against a boss of the pen holder; the height of the boss is (phi2-phi1)/2; and the left edge of the convex part fixedly leans against the right end part of the pen point. The convex part prevents fingers from sliding to the pen refill tip to hold a pen, so that the problems of writing by head leaning due to incapability of seeing the pen point, cyrtosis caused by unstraight sitting gesture, short-sightedness and strabismus are prevented, and correct sitting gesture and pen holding gesture are formed. The pen cap structureachieves great effects on body development of youths, teenagers and infants and eye protection.

Description

technical field [0001] The invention relates to parts of a pen, in particular to a nib and a barrel of a pen, which is a pen cover structure for preventing bad writing postures. Background technique [0002] The correct writing posture is "three ones", that is, one punch away from the desk, one foot away from the eyes from the writing, and one inch away from the nib of the pen. Nowadays, many children, whether they are kindergarten students who are close to primary school or elementary school students, have a bad writing posture when writing, that is, they write with their heads tilted on the notebook. According to many years of observation, the reason is that the position of holding the pen is too low. Previous fountain pens generally consist of three parts, i.e. nib, grip and penholder. The exposed part of the nib is relatively long, about 1 inch away from the grip, and the ink will be exposed at the nib. When writing, you will be careful not to get ink on your fingers, ...

AI Technical Summary

Problems solved by technology

[0008] The object of the present invention is to provide a pen cover structure for preventing bad writing postures in view of the deficiencies in the existing grip positions of various pens. This s

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