CN102390197A

CN102390197A - Refill type writing pen

Info

Publication number: CN102390197A
Application number: CN2011103304931A
Authority: CN
Inventors: 胡健; 魏晨; 徐林乐乐
Original assignee: Shanghai Minhang No 2 Middle School
Current assignee: Shanghai Minhang No 2 Middle School
Priority date: 2011-10-27
Filing date: 2011-10-27
Publication date: 2012-03-28

Abstract

The invention relates to a refill type writing pen, comprising a refill, a pen tube and a refill base which is arranged in the pen tube and is used for inserting and positioning the refill. A section of frustum is formed at the periphery of the refill base, and the section of one side of the frustum, which is close to the head part of the pen tube, is greater than the section of one side of the frustum, which is close to the tail part of the pen tube. The surface of the frustum supports against a press button with one side extending out of the inner wall of the pen tube, and the press button is positioned at a finger holding part of the pen tube. The refill type writing pen also comprises a spring which is sleeved on the refill, one end of the spring supports against a boss protruding from the inner wall of the pen tube, and the other end of the spring supports against the refill base. The operation of extending the head part of the refill out of the pen tube and retracting back is controlled by pressing the press button simultaneously when fingers hold the pen tube during writing, and whether the head part of the refill exposes or not is flexibly controlled according to the writing requirement, therefore, the defects that the head part of the refill is easy to be damaged when the traditional refill type writing pen is used are overcome.

Description

A kind of writing-core type lettering pen

Technical field

The present invention relates to a kind of stationery, relate in particular to a kind of writing-core type lettering pen structure.

Background technology

Such as writing-core type lettering pens such as propelling pencil, ball pens, when not using, the nib that exposes is receiving when clashing into improperly and can be damaged, and for example when dropping on the ground because of carelessness, just be easy to nib is damaged, and then whole pen core all can be scrapped; To such an extent as to caused certain waste.

Though many lettering pens in design extra increased the cap for brush with under should this kind situation to the protection of nib; But this extra attached thing of the cap for brush is often in use lost obviously, and its protection to nib is difficult to the corresponding effect of performance in fact.

Summary of the invention

Technical problem to be solved by this invention is to provide a kind of and does not change use habit simultaneously not increasing the loaded down with trivial details degree of use, under non-working condition, can effectively protect the lettering pen structure of pen core.

Its technical problem to be solved can be implemented through following technical scheme.

A kind of writing-core type lettering pen; Comprise pen core, the shaft of a writing brush and be placed in the shaft of a writing brush and be used for assigning and locating the pen core seat of pen core; Its characteristics do, the periphery of said pen core seat forms one section frustum, said frustum near the cross section of shaft of a writing brush head one side greater than its cross section near shaft of a writing brush afterbody one side; The table top butt of said frustum side one by one stretches out the button of shaft of a writing brush inwall, and said button is positioned at the finger grip position of the said shaft of a writing brush; Also comprise a spring, said spring housing is located on the pen core, and an end of spring is resisted against on the outstanding boss of shaft of a writing brush inwall, and the other end of spring is resisted against on the said pen core seat.

As the further improvement of present technique scheme, the finger grip position of the said shaft of a writing brush offers through hole, and said button stretches out said shaft of a writing brush inwall along said through hole.

Also as the further improvement of present technique scheme, said button has an anti-projection of shaking off near a side of frustum table top.

As the further improvement of present technique scheme, said button is a column, and the central shaft of the said column and the said shaft of a writing brush is perpendicular.

Adopt the writing-core type lettering pen of technique scheme; Press the further operation of the control pen core head turnover shaft of a writing brush of button when writing finger grip the time; And then realize controlling nib flexibly and whether exposing, thereby solved the drawback that existing writing-core type lettering pen damages in time spent nib not easily according to writing needs.

Description of drawings

Doing one below in conjunction with the accompanying drawing specific embodiments of the invention specifies.

Fig. 1 is a structural representation of the present invention;

---the shaft of a writing brush 110---through hole 120---button 121---projection among the figure: 100

130---boss 200---pen core 210---nib 300---pen core seats

310---frustum 311---the conical surface 312---bottom surface 400---springs

The specific embodiment

Writing-core type lettering pen as shown in Figure 1 belongs to a kind of pen that can protect the pen core nib automatically, and nib exposes during use, and pen leaves hand when not using, and nib can shrink automatically, so just can well protect pen core.

Its structure is following: pen core 200 and pen core seat 300 are laid in the shaft of a writing brush 100 inside; The pen core seat 300 location pen core 200 that is used for pegging graft; The left end of pen core seat 300 has formed a frustum 310, and the cross section in frustum left side is greater than the cross section on right side, and spring 400 is set on the pen core 200; The left end of spring 400 is resisted against on the formed boss 130 of the shaft of a writing brush 100 inwalls, and the right-hand member of spring 400 is resisted against on the bottom surface 312 of frustum.

Offer through hole 110 on the shaft of a writing brush sidewall corresponding with the conical surface of frustum 311, column button 120 passes this to be passed through, and the one of which end is positioned at the outside of the shaft of a writing brush 100, and an end is arranged in 100 inner chambers, and a wherein inner end is resisted against on the conical surface 311.In order to prevent that column button 120 from dropping from through hole, portion's end is provided with an anti-projection 121 of shaking off within it.Wherein button 120 center lines best and frustum 310 are perpendicular.

Wherein, through hole 110 offers the finger grip position that the position is in the user just.Like this when gripping the shaft of a writing brush, because the pressure of finger and then promote the column button and 120 surpass shaft of a writing brush internal motion,, promote pen core and 200 surpass and shift left, and then nib 210 is ejected from the shaft of a writing brush 100 inside further along the conical surface 311.

Not when gripping this lettering pen, above-mentioned strength disappears the user, this moment, nib 210 was drawn into shaft of a writing brush inside once more by means of the restoring force of spring 400, and then has avoided under the non-working condition protection to nib.

The present invention only needs one to press gently through a said apparatus is installed on pen, just can nib be exposed, and use only need lean against between thumb and the forefinger during with this device, that's all.In a single day finger leaves this device nib and just can shrink back.

Claims

1. writing-core type lettering pen; Comprise pen core, the shaft of a writing brush and be placed in the shaft of a writing brush and be used for assigning and locating the pen core seat of pen core; It is characterized in that the periphery of said pen core seat forms one section frustum, said frustum near the cross section of shaft of a writing brush head one side greater than its cross section near shaft of a writing brush afterbody one side; The table top butt of said frustum side one by one stretches out the button of shaft of a writing brush inwall, and said button is positioned at the finger grip position of the said shaft of a writing brush; Also comprise a spring, said spring housing is located on the pen core, and an end of spring is resisted against on the outstanding boss of shaft of a writing brush inwall, and the other end of spring is resisted against on the said pen core seat.

2. writing-core type lettering pen according to claim 1 is characterized in that, the finger grip position of the said shaft of a writing brush offers through hole, and said button stretches out said shaft of a writing brush inwall along said through hole.

3. writing-core type lettering pen according to claim 2 is characterized in that, said button has an anti-projection of shaking off near a side of frustum table top.

4. according to claim 1,2 or 3 described writing-core type lettering pens, it is characterized in that said button is a column, the central shaft of the said column and the said shaft of a writing brush is perpendicular.