CN1449934A - Pen - Google Patents

Abstract

The present invention provided a safe writing implement which prevents breathing from becoming impossible even when an eraser holder fitted removably to a writing holder is swallowed in by mistake. An eraser letting-out unit U is composed of an eraser 7, a rotary sleeve 8 and a screw 9 and constitutes an eraser letting-out mechanism E and it is the eraser holder fitted removably to the writing holder 2. The internal sectional shape of an eraser holding part 81 of the rotary sleeve 8 is formed to be circular and the sectional shape of the eraser is formed to be hexagonal, while a through hole 811b is formed in a front wall part 811 and a communicating path R is formed between the eraser 7 and the eraser holding part 81.

Description

Pen

Technical field

The present invention relates to possess the pen of rubber.

Prior art

Always, for example in pens such as propelling pencil, at the penholder that nib is arranged with as rearward end side this penholder and the end nib opposition side, can install with installing and removing and have rubber and the rubber that this rubber remains in the inner space accommodated key element and blocking and constitute that to make aforementioned rubber can make the rubber host body person of the rubber conveying mechanism that land used exposes be known.

As the rubber host body that constitutes this rubber conveying mechanism, inside at penholder is for example arranged, in the inside of accommodating the revoling tube of key element as rubber, constitute by can keeping with moving axially and forbid rubber installing department to this revoling tube luer engages with effect, with the state that is installed in this rubber installing department person etc. that accommodates the rubber the leading section that is located at spiral of penholder rotation.

And it is roughly cylindric that this rubber mostly is, and approaches to become the medial surface ground configuration of the revoling tube of general cylindrical shape.

Yet, if this structure, though then there is the occasion of blocking throat or tracheae because of the rubber host body of swallowing the blocking of the state that breaks away from penholder by mistake, the obstruction air flows in lung and causes dyspneic possibility, and this is not taken safety measures.

And then, this problem also exists the possibility of generation in the rubber host body of other forms that constitute the rubber conveying mechanism, in addition, for example the rubber host body columnar rubber that can be installed in the peristome of the rearward end that is positioned at penholder is accommodated key element and is embedded and is installed on this rubber to accommodate the structure that the rubber of key element forms also be same with installing and removing.

Summary of the invention

Therefore, will seek to address this is that,, also can prevent irrespirable safe pen even provide a kind of mistake the occasion that can swallow the rubber host body of penholder mounting or dismounting.

Promptly, pen of the present invention, be to have the penholder that has nib, accommodate the rubber host body that key element forms having to be disposed at as the rubber of the rearward end side of this penholder and the end set side opposition side of aforementioned nib and the rubber that has the space that to accommodate this rubber to make aforementioned rubber that land used is exposed from rearward end in inside, can be installed in the pen that penholder forms with installing and removing, it is characterized in that at the inside of rubber host body formation access vertically.

If this structure, even then in the occasion that throat or tracheae take place to block because of the rubber host body of swallowing the state that breaks away from penholder by mistake, also because air can lean against the inner formed access connection of this rubber host body, can not breathe so can prevent to become, be safe.In addition, equally also can prevent to become and to breathe in the occasion of blocking the nostril by mistake.

As forming the concrete form that this access is used simply, preferably accommodate its inner section shape of section configuration of the inside of key element becoming in from the front end of this rubber to the scope of rear end difformity ground to form as block rubber with face with axial quadrature, with as blocking the rubber section configuration of the section configuration of rubber with face with axial quadrature, accommodate at these rubbers and rubber and to form access between the key element.

And then, become among the difformity person in rubber section configuration and inner section shape like this, as suitable concrete form, preferably rubber keeps the inner section shape of key element to become circularly being shaped, and aforementioned rubber section configuration becomes non-circularly and is shaped.And then, if this rubber section configuration becomes the rubber that is shaped like this non-circularly,, wipe around it so when wiping tiny scope, can prevent mistake then because on rubber, form the part of bight or narrowed width.In addition, can guarantee to keep the intensity of key element.

And, as this non-circular rubber section configuration, though can enumerate ellipse, polygon, star, ancient coin shape, Pear-Shaped and then cut the shape etc. of a circular part all,, can enumerate roughly hexagon person as the concrete form that suits.This is because in the rubber section configuration person that becomes the polygon, if reduce the limit number then rubber diminishes, if so increase the limit number on the other hand then near circular and be difficult to wipe tiny part this is the cause of the shape that suits.

In addition, as the concrete form of rubber host body, can enumerate the spiral rubber conveying mechanism person of formation.

Be applied to the rubber of this rubber conveying mechanism owing to keep the keeper of institute length in the key element than the rubber of inlaying the open rearward end portion that is installed in pen, the length dimension of the longitudinally of corresponding therewith rubber host body also becomes greatly, so play the effect of the danger of avoiding swallowing occasion especially.

And, concrete form as the rubber host body that constitutes this rubber conveying mechanism, accommodate key element as constituting rubber by revoling tube, rubber is installed in by the luer engages with effect can remains in the inner space of revoling tube with moving axially and constitute the rubber installing department of forbidding that the leading section at spiral to penholder rotation forms, can enumerate and have these revoling tubes, rubber and spiral and carry out blocking person.

Description of drawings

Fig. 1 is the overall pattern of expression one embodiment of the invention.

Fig. 2 is the decomposition diagram among Fig. 1.

Fig. 3 is the side view of the revoling tube in the present embodiment.

Fig. 4 is its front view.

Fig. 5 is the vertical view of the spiral in the present embodiment.

Fig. 6 is its side view.

Fig. 7 is the cutaway view of the major part of this spiral of expression.

Fig. 8 is the sectional view of the major part in the presentation graphs 1.

Fig. 9 is the cutaway view of bowing of the major part in the presentation graphs 1.

Figure 10 is the cutaway view that the rubber in expression the present embodiment is sent the unit.

Figure 11 is the cutaway view that the rubber in expression the present embodiment is sent the unit.

The explanation 2 of label ... penholder 7 ... rubber 8 ... revoling tube 81 ... rubber is accommodated key element (rubber resettlement section) 9 ... spiral 92 ... rubber installing department E ... rubber conveying mechanism K ... open S ... space S P ... pen (propelling pencil) P ... nib R ... access U ... rubber host body (rubber is sent the unit)

The specific embodiment

Below, describe with regard to one embodiment of the invention with reference to accompanying drawing.

Pen according to the present embodiment is the rear portion knock-type propelling pencil SP shown in Fig. 1.Below, be front end with nib P side one end, be that the rear end is described with its opposition side one end.

This propelling pencil SP is the pen clip C person of forming who possesses a main body 1 and be located at the rearward end of this main body 1.

Main body 1 has the penholder 2 that has nib P, is located at the core conveying mechanism S of these penholder 2 inside, and rubber conveying mechanism E.

Penholder 2 be make near the axial central authorities than leading section and rearward end diameter thin slightly become cylindric person, what possess that the user is gripped on finger tip when writing handles knob 3, and is located at the bar tube 5 that this rear end side of 3 of handling knob is propped up portion between the finger of the thumb that is held in the user and forefinger.

Handle knob 3 is the hollow persons that become the conical shaped shape that screw in front, possess the preceding dop 4 that roughly becomes mushroom-shaped that has the through hole 41 that can insert unillustrated core at front end, constitute nib P by this preceding dop 4 and aforementioned core along the axis of longitudinally.In addition, this is handled knob 3 is to come the former by hard class synthetic resin (for example PP, PE, PMMA etc.) and soft class synthetic resin (for example elastomer), forms the soft part 3a that soft class synthetic resin is exposed in aforementioned 3 the holding area of handling knob and gives user's finger and feel soft thoughts and feelings.Form the hard 3b of portion on the leading section beyond this external this soft part 3a.

Bar tube 5 is the cylindric persons that extend vertically, by the minor diameter 51 of front and be connected in aforementioned minor diameter 51 and backward the large-diameter portion 52 of distolateral extension form.Minor diameter 51 has being threadedly engaged with and the aforementioned junction surface 511 (with reference to Fig. 2) of handling knob and engaging by for example pin thread and negative thread.Large-diameter portion 52 is to be contained in the inner hollow cylinder shape person that becomes to core conveying mechanism S and rubber conveying mechanism E.In addition, the 5b of hard portion that makes of the soft part 5a that made by aforementioned soft class synthetic resin of its surface and aforementioned hard class synthetic resin constitutes.

Core conveying mechanism S be as shown in Figure 2 from front end have dop 61, locking strap 62 to the back-end successively, take over 63, spring 64 and core storage tube 65, similarly constitute with always the known person of core conveying mechanism as propelling pencil.Moreover, forming the copulational protuberance 651 that is engaged in formed engaging groove 822 on the revoling tube 8 described later on the medial surface of core storage tube 65.

And, rubber conveying mechanism E in the present embodiment is equipped with to send unit U as the rubber of rubber host body in penholder 2, constitutes by the prominent bar 652 that forms the narrow slit 913 that inserts spiral 9 described later on core storage tube 65 medial surfaces in the large-diameter portion 52 that is contained in bar tube 5.

In addition, rubber is sent unit U and is possessed rubber 7, revoling tube 8 and spiral 9 persons of forming.

Rubber 7 is that the general rubber-like synthetic resin with the material that becomes rubber usually is material as shown in Figure 2, the rubber main body 71 that integrally is shaped and this rubber 7 is installed in the junction surface 72 of spiral 9 usefulness at its front end.And the length dimension of rubber main body 71 its longitudinallies of the rubber 7 of the present embodiment for example is about 4cm, to be long as the rubber that is equipped with in the propelling pencil.

Revoling tube 8 is shaped continuously by for example synthetic resin as shown in Fig. 3,4 and is positioned at accommodating the rubber resettlement section 81 of key element and be positioned at the screw engagement portion 82 in the place ahead as rubber of rear.

Rubber resettlement section 81 is to have the space S of accommodating rubber 7 in inside, has the opening K that makes this space S rearward open, makes rubber 7 from this opening K land used be exposed.In addition, form cylindric, that is, and as with the face of axial quadrature on the inner section shape of section configuration become roughly positive circular.In addition, as shown in Fig. 2,8, its front end be provided with to the rear end outer rim of screw engagement portion 82 continuous along with the front wall portion 811 of the face of axial quadrature, form the contact-making surface 811a that is contacted with as the end face 65a of the aforementioned core storage tube 65 of cylindrical shell.

Screw engagement portion 82 forms diameter cylindric less than aforementioned rubber resettlement section 81, forms from its medial surface outstanding to the inside and threadingly engage in the outer screw section 821 of formed negative thread described later portion 912 on spiral 9 as shown in Figure 8.This outer screw section 821 is provided with for example 360 ° of one whole circle.In addition, on outer peripheral face 82a, form can with the engaging groove 822 from the ring-type of outstanding copulational protuberance 651 resilient engagement that are provided with of medial surface of aforementioned core storage tube 65, making rubber send unit U becomes and can install and remove penholder 2.

Spiral 9 is the rubber installing department 92 that has spire 91 and be positioned at its rear end ukb as shown in Fig. 5,6, and then runs into the front end face at said spiral junction surface 82 and become in the leading section setting of said spiral portion 91 and prevent the jut 93 that comes off.

Spire 91 has the axial region 911 of axially extended column and the negative thread portion 912 to form with the corresponding pitch in aforementioned male threaded portion 821 around this axial region 911.And then, form the narrow slit 913 that embeds the rotation that limits 9 pairs of penholders 2 of this spiral by formed prominent bar 652 on the core storage tube in being disposed at bar tube 5 65.Specifically, this narrow slit 913 forms said spiral groove 912 discontinuously, forms continuously on axial region 911 along axial front end from aforementioned jut 93 at the position of this disjunction.

Rubber installing department 92 has the junction surface 72 insertion volume inside aforementioned rubber 7.And, as shown in Figure 11 with the face of axial quadrature on section configuration become hexagon and form the lid shape of opening rearward.In addition, on the side, as shown in Fig. 7,11, the prominent bar 921 of the periphery at outstanding to the inside and pushing junction surface 72 is set within it, prevents that rubber 7 from coming off from this rubber installing department 92.Moreover this prominent bar 921 is provided with everywhere in illustrative example.

So, by forbid negative thread portion 912 by the prominent bar 652 insertion narrow slits of giving prominence to from the medial surface of core storage tube 65 913 to the spiral 9 of penholder 2 rotations, with be located at being threadedly engaged with of outer screw section 821 on the revoling tube 8, these spirals 9 and revoling tube 8 relative rotations, spiral 9 move axially and make and are installed in the rubber 7 of going up formed rubber installing department 92 in its back-end and expose from opening K.

So in the propelling pencil SP of formation as above, as shown in Fig. 9,10, the inside of sending unit U at aforementioned rubber forms air along the access R that axially can pass through.Moreover Figure 10 and Figure 11 are the figure that the rubber of A-A section and B-B section is sent the inside of unit U in the presentation graphs 9.

Specifically, become the variform roughly hexagon of inner section ground with the rubber resettlement section 81 of aforementioned revoling tube 8 and form rubber section configuration on the face with the axial quadrature of rubber 7, and on aforementioned front wall portion 811, through hole 811b is set, keeps forming between the key element aforementioned access R at these rubbers 7 and rubber.Through hole 811b and the inner surface of rubber 7 and revoling tube 8 between the corresponding position, space that forms form, in the present embodiment, become three places of formation annularly of interruption.So access R forms via formed space between rubber 7 and rubber resettlement section 81 to through hole 811b ground from the opening K of rubber resettlement section 81.

If so with the propelling pencil SP in the present embodiment, wait and swallow the rubber that has broken away from penholder 2 because of mistake and send unit U and block throat or the such situation of tracheae even child is then taken place, also because air enters so can prevent to become and can not breathe by access R.

In addition, owing to become roughly hexagon by rubber 7 being configured as its rubber section configuration, form access R, if so with implement being configured as the occasion that processing such as non-circular forms access along the inner section shape of axial through hole and comparing as forming in revoling tube 8 one sides, its making becomes simple structure.

In addition,, rubber 7 becomes roughly hexagon because being configured as its rubber section configuration, easy to use so when wiping tiny scope, can prevent to clip on every side by mistake by its bight.

In addition, because the rubber of the present embodiment 7 constitutes rubber conveying mechanism E, with be contained in the Rubber eraser clamp person who accommodates key element as rubber who is set in the penholder rear end usually and compare and will grow, promptly, rubber is sent unit U and is also had corresponding therewith length dimension, receives for the effective especially effect of security so form access R.

Moreover, the invention is not restricted to above-mentioned embodiment.

Rubber section configuration particularly, so long as and revoling tube 8 between form the space person, also can be the shape etc. of ellipse, polygon, star, ancient coin shape, Pear-Shaped and then a part of cutting away circle.

And then, also can be the rubber section configuration for circular, the inner section shape of revoling tube is configured as and becomes non-circularly, forms access between rubber and revoling tube.

In addition, also can rubber accommodate key element and be by in the inner space of penholder, keeping and to rotate this penholder, form the inner barrel of axially extended slot part in the inboard and on inwall, form the double-layer structure that the outer cylinder body of spire is formed, rubber is to be installed in have the spire that is threadedly engaged with said spiral portion and embedding aforementioned slot part formed rubber installing department on the axially movable slide block in this cylindrical shell, and the rubber host body has these sleeve pipes, rubber and slide block and carried out blocking.

In addition, the rubber host body also can be to be accommodated the Rubber eraser clamp of key element and insert the rubber be installed on this Rubber eraser clamp and form as rubber by the columnar of the peristome that can be installed in the rearward end that is positioned at penholder with installing and removing.

In addition, the rubber host body also can have the lid of blocking its rear end.In the occasion of this structure, it is just passable that through hole also is set on this lid.

In addition, access also can be through hole vertically is set on rubber and constitutes.Equally, also can be to keep on the key element through hole being set at rubber.

In addition, also be not limited to above-mentioned embodiment about the concrete formation of each one, all distortion are possible in the scope that does not break away from spirit of the present invention.

The present invention implements by the form of above explanation, receives the effect of the following stated.

Promptly, if use the present invention, even then block throat or tracheae because of the rubber host body of swallowing the state that breaks away from penholder by mistake, perhaps block the nostril by mistake, because of air also by being communicated with, so a kind of irrespirable safe pen that prevents to become can be provided at the inner formed access of this rubber host body.

Claims (6)

1. pen, be to have the penholder that has nib, accommodate the rubber host body that key element forms having to be disposed at as the rubber of the rearward end side of this penholder and the end set side opposition side of aforementioned nib and the rubber that has the space that to accommodate this rubber to make aforementioned rubber that land used is exposed from rearward end in inside, can be installed in the pen that aforementioned penholder forms with installing and removing

At the inside of aforementioned rubber host body formation access vertically.

2. pen as claimed in claim 1, wherein form as block rubber with face and accommodate the inner section shape of section configuration of the inside of key element being difformity ground in from the front end of rubber to the scope of rear end with axial quadrature, with as block the rubber section configuration of the section configuration of rubber with face with axial quadrature, accommodate the aforementioned access of formation between the key element at these rubbers and rubber.

3. pen as claimed in claim 2, wherein aforementioned inner section shape becomes circle, and aforementioned rubber section configuration becomes the shape except circle.

4. pen as claimed in claim 3, wherein the rubber section configuration becomes roughly hexagon.

5. as any one the described pen in the claim 1 to 4, wherein the rubber host body constitutes spiral rubber conveying mechanism.

6. pen as claimed in claim 5, wherein aforementioned rubber is accommodated key element and is located on the revoling tube, aforementioned rubber is installed in by the luer engages with effect and can remains in the inner space of this revoling tube with moving axially and constitute the rubber installing department of forbidding the leading section that is located at spiral of penholder rotation, and the rubber host body has these revoling tubes, rubber and installs the spiral of aforementioned rubber and blocking and constituting.

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