Novel pen cap, preparation method thereof and pen with novel pen cap

Abstract

The invention discloses a novel pen cap which comprises a pen cap body and a pen clip which is installed on the pen cap by adopting a cantilever beam structure. The top portion of the pen clip is covered by a thermoplastic elastomer. The shortest radial distance between a region which is covered by the thermoplastic elastomer and the axle wire of the pen cap is smaller than or equal to the inner radius of the pen cap. The invention further discloses a pen cap preparation method. The pen clip with the cantilever beam structure is installed on the pen cap. The pen clip is formed by adopting a double-shot molding mode. The novel pen cap, the pen cap preparation method and the pen with the novel cap can not only provide comfortable touch when the pen cap is buckled or flipped, but also improve elasticity of the pen clip. Besides, when the pen clip is broken, the pen clip cannot fall off, and therefore the safety of the pen clip is improved. Even when the pen clip is used for clipping various smooth surfaces, the pen clip cannot easily slide. At the same time, if the function of friction is needed, multi-angle friction modes can be provided.

Description

technical field [0001] The invention belongs to the technical field of stationery, and in particular relates to a novel pen cap in the field, a preparation method thereof and a writing pen using the cap. Background technique [0002] In the existing writing pens, there are generally pen clips, which have the functions of clamping and anti-lost. , The pen clip of the writing pen also adds functions such as anti-rolling and pressing, which endows the pen clip with more functional meanings. [0003] Commonly used writing pens are divided into buckle cap type, rotating type, and push type (or bouncing type) according to the main structure. Manufactured in various metal materials and plastic materials. In the application process, there are the following problems for the use of the writing pen: [0004] First of all, during use, it is often necessary to press the top of the pen cap to install the pen cap on the pen holder, or to press the top plug to reset the refill, thereby k...

AI Technical Summary

Problems solved by technology

Since the main part of the upper cap cannot be made of softer elastomer materials that increase friction through elastic deformation, there are greater limitations in material selection

In addition, the patent application number CN200710196534.6 discloses a friction body, the friction body is placed at the front end of the pen cap or the rear end of the shaft barrel, and the physical properties of friction and heat conduction inherent in existing elastomer materials are also used to achieve erasing Function, this method of deliberately setting friction bodies at the top of the pen cap or the end of the pen barrel occupies the internal axial space of the writing instrument, and it is easy to cause the friction body to fall off or deform during the shearing process of erasing, and from the perspective of space layout From the point of view, the above two solutions are conducive to friction in the vertical direction or close to the vertical direction. When it is at a certain angle, it will affect the convenience and effect of erasing.

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