JP2020184315A - Electromagnetic induction touch pen and multifunctional pen - Google Patents

Abstract

To provide an electromagnetic induction touch pen which can move an electromagnetic induction refill in an axial direction of a shaft cylinder and which mitigates shock transmitted to the electromagnetic induction refill.SOLUTION: An electromagnetic induction touch pen includes: a shaft cylinder having a tip opening as an opening part at a tip; an electromagnetic induction refill which is stored inside the shaft cylinder, which has a contact tip capable of appearing from the tip opening, and which is used for input by an electromagnetic induction method; a movement mechanism for moving the electromagnetic induction refill in an axial direction of the shaft cylinder; and a shock-resistant deformation member mounted at a rear end of the electromagnetic induction refill.SELECTED DRAWING: Figure 1

Description

The present invention relates to an electromagnetic induction touch pen and a multifunctional pen.

In recent years, pointing devices such as digitizers that input by physical contact on the screen have been widely used. That is, it is a pen-shaped position indicator that detects the contact position by contacting the input surface of the plate-shaped input device provided with the position detection device.

There are various methods for such a digitizer, and among them, there is an electromagnetic induction method. This is because an electromagnetic induction coil that resonates with an electromagnetic wave of a specific frequency generated by a position detection device installed under the input surface of the input device is provided in the position indicator, and this resonance occurs. The generated position is recognized as an input position.
As such a technique, there are those described in the following Patent Document 1 and the following Patent Document 2.

WO 2016/121478 A1 WO 2016/129614 A1

Here, in the electromagnetic induction type digitizer (electromagnetic induction touch pen), the copper wire in the electromagnetic induction refill used for the input by the electromagnetic induction method may be broken due to the knock impact, so that the impact transmitted to the electromagnetic induction refill is transmitted. Need to be relaxed.

Therefore, an object of the present invention is to reduce the impact transmitted to the electromagnetic induction refill during movement in the electromagnetic induction touch pen in which the electromagnetic induction refill can move in the axial direction of the barrel.

In order to solve the above problems, the embodiment of the present invention includes the following configurations.

(1) First Embodiment The electromagnetic induction touch pen according to the first embodiment of the present invention is accommodated in a barrel having a tip opening which is an opening at the tip and inside the barrel and from the tip opening. It is attached to the rear end of the electromagnetic induction refill, which has a contact tip that can appear and disappear, and is used for input by the electromagnetic induction method, a moving mechanism that moves the electromagnetic induction refill in the axial direction of the barrel, and the rear end of the electromagnetic induction refill. It is provided with a deformable member having impact resistance.

(2) Second Embodiment The electromagnetic induction touch pen according to the second embodiment of the present invention is the electromagnetic induction touch pen according to the first embodiment, and the deformable member has a tubular shape and the electromagnetic induction refill. A thin-walled portion provided on the front end side of the deformable member to which is mounted, and a thick-walled portion provided on the rear end side of the deformable member and thicker in the radial direction of the deformable member than the thin-walled portion. Be prepared.

(3) Third Embodiment The electromagnetic induction touch pen according to the third embodiment of the present invention is the electromagnetic induction touch pen according to the second embodiment, and the rear end of the electromagnetic induction refill has an inside of the deformable member. A press-fitting portion to be press-fitted into the stylus and an extending portion extending from the press-fitting portion to the contact tip side are provided, and the outer diameter of the extending portion is larger than the inner diameter of the thin-walled portion in which the extending portion is housed. Is also small.

(4) Fourth Embodiment The electromagnetic induction touch pen according to the fourth embodiment of the present invention is the electromagnetic induction touch pen according to any one of the first to third embodiments, and the deformable member has rubber elasticity. It is made of a material that has.

(5) Fifth Embodiment The electromagnetic induction touch pen according to the fifth embodiment of the present invention is the electromagnetic induction touch pen according to any one of the first to third embodiments, and the deforming member is an unequal pitch coil. It is a spring.

(6) Sixth Embodiment The electromagnetic induction touch pen according to the sixth embodiment of the present invention is the electromagnetic induction touch pen according to any one of the first to third embodiments, and the deformable member is in the front-rear direction. It is a tubular body made of synthetic resin having a through hole, and has an elastically deformed portion at the tip that can be elastically deformed in the radial direction by pressure contact with the outer periphery of the rear end of the electromagnetic induction refill.

(7) Seventh Embodiment The electromagnetic induction touch pen according to the seventh embodiment of the present invention is the electromagnetic induction touch pen according to any one of the first to sixth embodiments, and is located on the rear end side of the barrel. Is provided with an input unit having an electronic pen function.

(8) Eighth Embodiment The multifunctional pen in the eighth embodiment of the present invention includes the electromagnetic induction refill provided in the electromagnetic induction touch pen according to any one of the first to seventh embodiments. A writing refill housed inside the barrel, having a writing tip that can appear and disappear from the tip opening, and having a maximum diameter smaller than the maximum diameter of the electromagnetic induction refill, the barrel is provided in the axial direction. A body portion along the above-mentioned body and a tapered portion that is continuous with the tip end of the body portion and whose diameter is reduced toward the tip end side in the axial direction, and the inside of the tip end side of the tapered portion is the electromagnetic induction refill. A diameter-expanded portion having an inner diameter larger than the maximum diameter is provided so as to have an inner diameter larger than the maximum diameter.

(9) Ninth Embodiment The multifunctional pen in the ninth embodiment of the present invention is the multifunctional pen of the eighth embodiment, and the moving mechanism performs the electromagnetic induction refill and the written refill. A knock mechanism that moves the electromagnetic induction refill in the axial direction. The knock mechanism includes a plurality of knock rods that move the electromagnetic induction refill or the writing refill in the axial direction by a knock operation, and moves the electromagnetic induction refill in the axial direction. A clip is provided on the knock rod for moving.

According to the present invention, in an electromagnetic induction touch pen in which the electromagnetic induction refill can be moved in the axial direction of the barrel, the impact transmitted to the electromagnetic induction refill during movement can be alleviated.

It is a front view (A), the side view (B) and (A) I-I sectional view (C) in the immersive state of the multifunctional pen which concerns on this embodiment. It is a partially enlarged view (D) of II-II sectional view (C) and (C) of the front axis (A), the front view (B), and (B) which concerns on this embodiment. 2 is a perspective view (A) and (B) showing a part of FIG. 2 (A) in cross section. Front view (A) of the written refill according to the present embodiment, front view (B) of the electromagnetic induction refill, III-III sectional view (C) of (A), IV-IV sectional view (D) of (B). And (D) is a partially enlarged view (E). It is a perspective view (A), the front view (B) and the VV cross-sectional view (C) of the deforming member which concerns on this embodiment. A partially enlarged view of the tip side of the VI-VI cross-sectional views (C) and (C) of the front view (A), the side view (B), and (A) in the exposed state of the multifunctional pen according to the present embodiment ( It is a partially enlarged view (E) of the rear end side of D) and (C). In the exposed state of the multifunctional pen according to the present embodiment, the front view (A), the side view (B), and the partially enlarged views (D) of the VII-VII sectional views (C) and (C) of (A) are shown. is there. It is VIII-VIII cross-sectional view (C) of the perspective view (A), the front view (B) and (B) of the deforming member which concerns on the 1st modification of this Embodiment. It is a perspective view (A) and a front view (B) of the deforming member which concerns on the 2nd modification of this Embodiment. It is a perspective view (A), the front view (B) and the XX cross-sectional view (C) of the deformed member which concerns on the 3rd modification of this Embodiment. XI-XI cross-sectional view (E) of the perspective view (A), front view (B), side view (C), bottom view (D) and (B) of the deformable member according to the fourth modification of the present embodiment. Is.

The multifunctional pen 10 in the present embodiment will be described with reference to the drawings. In the following description, the "tip side" refers to one side of the axial direction of the axle cylinder 20 described later toward the front shaft 22 described later, and the "rear end side" refers to the rear shaft 24 described later. The other side to go. In addition, the axial direction may be expressed as "front and back".

(1) Appearance of the multifunctional pen 10 The multifunctional pen 10 according to the present embodiment has an appearance as shown in FIGS. 1A and 1B.

The multifunctional pen 10 is provided with a barrel 20 having an opening at the tip as an external structure thereof. The axle cylinder 20 is formed by screwing a rear shaft 24 located on the rear end side and a front shaft 22 located on the front end side into each other. The tip of the tip shaft 22 is formed with a tip opening 23, which is an opening at the tip where the ballpoint pen tip 56 of the writing refill 50 described later or the contact tip 64 of the electromagnetic induction refill 60 described later can appear and disappear. In this embodiment, a "ballpoint pen refill" is used as the "writing refill 50".

Three window holes 24A (see FIG. 1B), which are elongated holes along the axial direction, are formed on the rear end side of the rear shaft 24. From each window hole 24A, three knock rods 25 for moving the writing refill 50 or the electromagnetic induction refill 60 back and forth by the knock operation are exposed. Further, the knock rod 25 can be moved back and forth along the corresponding window hole 24A.

Further, as shown in FIG. 1 (B), the knock rod 25 exposed from one window hole 24A, specifically, the knock protrusion of the knock rod 30 for electromagnetic induction refill for moving the electromagnetic induction refill 60 back and forth. A clip 30B is attached to the 30A. The tip portion of the clip 30B is a holding portion 30C protruding toward the axial center side of the barrel 20, and is in contact with the clip protrusion 24B formed on the outer peripheral surface of the rear shaft 24. The clip 30B is made of a lightweight resin material. On the other hand, the other two knock rods 25 are writing refill knock rods 32 for moving the writing refill 50 having different ink colors back and forth.

Further, a functional member 26 as an input unit having an electronic pen function is provided at the rear end of the rear shaft 24. The functional member 26 specifically has a capacitance type input function as an electronic pen function.

The functional member 26 includes a connecting portion 26A connected to the rear end of the rear shaft 24, and a substantially hemispherical hemispherical portion 26B extending from the rear end to the rear end side of the connecting portion 26A.

At least the hemispherical portion 26B of the functional member 26 is made of an elastic synthetic resin (rubber, elastomer). Examples of this synthetic resin include silicon resin, SBS resin (styrene-butadiene-styrene copolymer), SEBS resin (styrene-ethylene-butylene-styrene copolymer), fluororesin, chloroprene resin, nitrile resin, and polyester. Examples thereof include based resins, ethylene propylene diene rubber (EPDM), etc., and are composed of a low-wear-resistant viscoelastic material that can withstand repeated use.

Further, the functional member 26 is input to a smartphone or the like by forming at least the hemispherical portion 26B into a conductive rubber in which a conductive material such as a metal powder, a conductive resin, or a conductive fiber is mixed with the above synthetic resin. It is possible to suppress damage to the input device when it is brought into contact with the device (not shown). This conductive rubber can be manufactured by molding a commercially available conductive rubber material. Examples of this commercially available conductive rubber material include EC series silicone rubber manufactured by Shin-Etsu Chemical Co., Ltd., Leopound series manufactured by Lion Corporation, and Sustec series manufactured by JFE Techno Research Co., Ltd.

(2) Inside view of the multifunctional pen 10 FIG. 1 (C) is a sectional view taken along line I-I of FIG. 1 (A).

As shown in FIG. 1C, the multifunctional pen 10 includes a knock mechanism 35 as a moving mechanism for moving the electromagnetic induction refill 60 and the writing refill 50 back and forth. The knock mechanism 35 includes an inner cylinder 40, a knock rod 25, a guide cylinder 42, and springs 34 and 36.

On the rear end side of the internal space of the rear shaft 24, an inner cylinder 40 that accommodates each knock rod 25 and guides the front-rear movement of the knock rod 25 is arranged. The inner cylinder 40 is formed with accommodating grooves (not shown) for accommodating each knock rod 25 along the axial direction.

Explaining the structure of the knock rod 25 by taking the knock rod 30 for electromagnetic induction refill as an example, the knock rod 25 is from the knock rod body 30D accommodated in the accommodating groove of the inner cylinder 40 and the rear end of the knock rod body 30D. It includes a knock protrusion 30A protruding toward the opposite side of the axis of the barrel 20. Then, as described above, the clip 30B is attached to the knock projection 30A of the knock rod 30 for electromagnetic induction refill. The shape of the electromagnetic induction refill knock rod 30 is different from the shape of the writing refill knock rod 32 because the clip 30B is attached.

Further, the knock rod 25 is provided with a release projection 30E protruding from the rear end of the knock rod body 30D toward the axial center side of the barrel 20. The release protrusion 30E is also provided on the other two knock rods 25, and is used when releasing the exposed state in which the contact tip 64 or the ballpoint pen tip 56 is exposed from the tip opening 23.

A locking projection 30F is formed on the tip end side of the knock rod body 30D so as to project toward the opposite side of the axis of the barrel 20. The locking step 30G provided at the rear end of the locking projection 30F contributes to preventing the knock rod 25 from coming off by locking with the tip of the inner cylinder 40.
From the tip of the knock rod body 30D, a mounting portion 30H extending toward the tip is provided. The tip portion of the mounting portion 30H is press-fitted into the rear end of the writing refill 50 and the rear end of the deforming member 70 described later.

Further, the step formed by the diameter difference between the mounting portion 30H and the knock rod body portion 30D is the spring support end 30I that supports the rear ends of the springs 34 and 36.

Further, a guide cylinder 42 for guiding the front-back movement of the writing refill 50 and the electromagnetic induction refill 60 is arranged on the tip side of the inner cylinder 40 in the internal space of the rear shaft 24. The guide cylinder 42 has a total of three guide holes (not shown) into which the writing refill 50, the electromagnetic induction refill 60, and the impact-resistant deforming member 70 attached to the rear end of the electromagnetic induction refill 60 are inserted. It is provided. The details of the deforming member 70 will be described later.

Two writing refills 50 are inserted in two of the guide holes. A spring 36 is extrapolated on the outer circumference of the writing refill 50 on the rear end side. A knock rod 32 for writing refill is connected to the rear end of the writing refill 50. The rear end of the spring 36 is in contact with the spring support end 30I, and the tip of the spring 36 is in contact with a step (not shown) of the guide cylinder 42. Therefore, the spring 36 is compressed between the spring support end 30I and the step (not shown) of the guide cylinder 42 as the writing refill knock rod 32 moves toward the tip end side.

Further, one electromagnetic induction refill 60 and a deforming member 70 are inserted into the remaining one of the guide holes. A spring 34 is extrapolated from the outer circumference of the deformable member 70. An electromagnetic induction refill knock rod 30 is connected to the rear end of the deforming member 70. The rear end of the spring 34 is in contact with the spring support end 30I, and the tip of the spring 34 is in contact with a step (not shown) of the guide cylinder 42. Therefore, the spring 34 is compressed between the spring support end 30I and the step (not shown) of the guide cylinder 42 as the knock rod 30 for electromagnetic induction refill moves toward the tip end side.

Then, for example, when the electromagnetic induction refill knock rod 30 is moved to the tip side, the contact tip 64 is exposed from the tip opening 23, and the writing refill knock rod 32 is moved to the tip side with the contact tip 64 exposed. When moved, the contact tip 64 is immersed in the tip shaft 22, and the ballpoint pen tip 56 is exposed from the tip opening 23.

(3) Lead shaft 22
2 (A) is a perspective view of the front shaft 22, FIG. 2 (B) is a front view of the front shaft 22, and FIG. 2 (C) is a sectional view taken along line II-II of FIG. 2 (B). FIG. 2D is a partially enlarged view of FIG. 2C. Further, FIGS. 3 (A) and 3 (B) show a part of the perspective view shown in FIG. 2 (A) in cross section.

As shown in FIGS. 2 and 3, the front shaft 22 has a front shaft rear portion 22A, a front shaft flange portion 22B, a front shaft front portion 22C, and a front shaft tapered portion 22D in order from the rear end side as its external structure. I have.

The front axle rear portion 22A has a tubular shape. On the outer peripheral surface of the front axle rear portion 22A, a front axle male screw 22E for screwing with the rear axle female screw 24C (see FIG. 1C) formed on the rear axle 24 is formed. The front shaft flange portion 22B is an annular portion and is a portion that can come into contact with the tip of the rear shaft 24 when the front shaft 22 is inserted into the rear shaft 24. The front shaft front portion 22C has a tubular shape and is a tubular portion along the axial direction. The front shaft tapered portion 22D is a portion that is continuous with the tip of the front shaft front portion 22C and whose diameter is reduced toward the tip side in the axial direction. A tip opening 23 is formed at the tip of the tip shaft tapered portion 22D. The front shaft front portion 22C is an example of a body portion, and the front shaft tapered portion 22D is an example of a tapered portion.

Here, as shown in FIGS. 2 (C), 2 (D), 3 (A), and (B), the inside of the tip end side of the front shaft tapered portion 22D is larger than the maximum diameter of the electromagnetic induction refill 60. A diameter-expanded portion 22F whose diameter is expanded along the axial direction is provided so as to have a large inner diameter.

(4) Written refill 50, electromagnetic induction refill 60, and deforming member 70
4 (A) is a front view of the written refill 50, FIG. 4 (B) is a front view of the electromagnetic induction refill 60 in which the deforming member 70 is attached to the rear end, and FIG. 4 (C) is a front view of FIG. 4 (C). A is a sectional view taken along line III-III, FIG. 4D is a sectional view taken along line IV-IV of FIG. 4B, and FIG. 4E is a partially enlarged view of FIG. 4D.

As shown in FIGS. 4A and 4C, the writing refill 50 includes a tubular ink storage tube 52 that stores ink (not shown), a joint 54 attached to the tip of the ink storage tube 52, and a joint 54. It includes a ballpoint pen tip 56 as a writing tip attached to the tip of the joint 54. The maximum diameter of the written refill 50 is smaller than the maximum diameter of the electromagnetic induction refill 60. The ink contained in the ink accommodating tube 52 is a heat-discolorable ink that can be discolored or decolorized by heating such as rubbing, so that the ink color can be changed by frictional operation using the functional member 26. It has an effect that can be easily made.

Although the detailed structure of the electromagnetic induction refill 60 shown in FIGS. 4B and 4D is not shown, the electromagnetic induction refill 60 is used for input by the electromagnetic induction method, and has, for example, the following configuration. I have.

As shown in FIGS. 4 (B) and 4 (D), the electromagnetic induction refill 60 includes a resin storage cylinder 62. A rod-shaped ferrite core (not shown) is built in the tip side of the accommodating cylinder 62, and a contact tip 64 made of synthetic resin such as polyacetal is attached to the tip of the ferrite core. In addition, an electromagnetic induction coil (not shown) is extrapolated around the ferrite core. Further, on the rear end side of the internal space of the accommodating cylinder 62 with respect to the ferrite core, a capacitor with variable capacitance (not shown) electrically connected to the electromagnetic induction coil and a capacitor with fixed capacitance (not shown) And various passive elements (not shown) for fine-tuning the resonance frequency are housed. The electromagnetic induction refill 60 is removable from the deformable member 70, and can be easily replaced with a new one when the contact tip 64 is worn or the built-in electronic devices break down. it can.

Further, as shown in FIG. 4D, the rear end of the electromagnetic induction refill 60 comes into contact with the press-fitting portion 66 having a substantially circular cross section, which is press-fitted into the inside of the deforming member 70, along the axial direction from the press-fitting portion 66. An extending portion 68 extending to the tip side is provided. The outer diameter of the extending portion 68 is smaller than the inner diameter of the thin-walled portion 72 described later in which the extending portion 68 is housed. As a result, as shown in FIG. 4 (E), a gap 65 is formed between the outer peripheral surface of the extending portion 68 and the inner peripheral surface of the thin-walled portion 72. When the press-fitting portion 66 is press-fitted into the inside of the deforming member 70, the outer peripheral surface of the press-fitting portion 66 and the inner peripheral surface of the deforming member 70 are in line contact with each other.

5 (A) is a perspective view of the deformable member 70, FIG. 5 (B) is a front view of the deformable member 70, and FIG. 5 (C) is a VV cross-sectional view of FIG. 5 (B). The deformable member 70 has impact resistance, and is preferably formed of, for example, a synthetic resin such as polypropylene (PP) containing a propylene homopolymer in consideration of moldability. Further, in order to further enhance the shock absorption performance, the durometer hardness A50 to A90 described in JIS K6253 or the durometer hardness D10 to D65 may be used. Further, the deformable member 70 may be made of a material having rubber elasticity, for example, a thermoplastic elastomer.

As shown in FIGS. 5 (A), 5 (B) and (C), the deformable member 70 has a tubular shape, a thin portion 72 provided on the tip side of the deformable member 70, and a rear end of the deformable member 70. It is provided on the side and includes a thick portion 74 that is thicker in the radial direction of the deforming member 70 than the thin portion 72. The mounting portion 30H of the electromagnetic induction refill knock rod 30 is press-fitted into the thick portion 74.

The thick portion 74 is formed at the rear end of the deforming member 70 by, for example, the following method.
An example of forming the first thick portion 74 is called an impulse welder (IPW), and a welding tip (not shown) that heats and melts the rear end of the deforming member 70 is used. The welded tip is formed with an annular recess (not shown) into which the rear end of the deforming member 70 can be inserted. Further, a heating element (not shown) is attached to the welded tip, and is configured to be heated by, for example, Joule heat. Further, a gas introduction hole (not shown) is formed in the central portion of the welding tip, and a cooling gas (air) can be introduced by using the gas introduction hole.

An example of forming the second thick portion 74 is to attach a thick portion 74 formed of another member to the rear end of the deforming member 70. In this case, a means for attaching the thick portion 74 to the rear end of the deforming member 70 by using an adhesive can be adopted.
In the formation example of the third thick portion 74, the thick portion 74 is attached to the rear end of the deforming member 70 by heat welding. In this case, the thick portion 74 can be formed substantially integrally with the deformable member 70.

The wall thickness a of the thick portion 74 is 0.5 to 0.7 mm, preferably 0.55 to 0.65 mm, and the axial length b of the thick portion 74 is 1 to 6 mm, preferably 2. It is preferably 5 to 4.5 mm. It is desirable that the flexural modulus of the deforming member 70 is lower than the flexural modulus of the electromagnetic induction refill 60. Further, the thick portion 74 may be formed on the tip end side of the thin wall portion 72, that is, on the tip end side of the deformable member 70.

(5) Exposed state FIG. 6 (A) is a front view in an exposed state, FIG. 6 (B) is a side view in an exposed state, and FIG. 6 (C) is a sectional view taken along line VI-VI of FIG. 6 (A). 6 (D) and 6 (E) are partially enlarged views of FIG. 6 (C).

As shown in FIGS. 6A, 6B, and 6C, the exposed state shown in FIG. 6 comes into contact with the tip opening 23 based on the fact that the electromagnetic induction refill knock rod 30 is moved to the tip side. The tip 64 is exposed.

Specifically, the flow of the electromagnetic induction refill 60 and the written refill 50 shown in FIG. 1 changing from the immersive state in which they are immersed inside the barrel 20 to the exposed state shown in FIG. 6 is as follows.

First, as the electromagnetic induction refill knock rod 30 moves toward the tip side, the deformation member 70 connected to the electromagnetic induction refill knock rod 30 and the electromagnetic induction refill 60 connected to the deformation member 70 move to the tip side. Start moving to.

When the deforming member 70 and the electromagnetic induction refill 60 move to the tip side, the tip portion (contact tip 64 and the outer peripheral surface of the accommodating cylinder 62) of the electromagnetic induction refill 60 is inside the front shaft tapered portion 22D (see FIG. 2D). Contact the peripheral surface. After that, the electromagnetic induction refill 60 moves toward the axial center side of the barrel 20, that is, the tip opening 23 along the inclination of the inner peripheral surface of the front shaft tapered portion 22D.

Then, as the movement of the electromagnetic induction refill knock rod 30 to the tip end side is completed, the movement of the deforming member 70 and the electromagnetic induction refill 60 to the tip end side is completed. As a result, the contact tip 64 is exposed from the tip opening 23.

Here, when the tip portion of the electromagnetic induction refill 60 moves along the inclination of the inner peripheral surface of the front shaft tapered portion 22D, the electromagnetic induction refill 60 is in a state of being inclined with respect to the axial center of the deforming member 70. .. Specifically, as shown in FIG. 6D, the electromagnetic induction refill 60 serves as a fulcrum in which the press-fitting portion 66 allows the shaft cylinder 20 to be displaced in the radial direction while restraining the displacement in the axial direction. Therefore, the displacement in the radial direction is possible within the range of the gap 65. As a result, the electromagnetic induction refill 60 moves toward the tip end side in an inclined state with respect to the axial center of the deforming member 70.

Further, the enlarged diameter portion 22F shown in FIG. 6E has an inner diameter larger than the maximum diameter of the electromagnetic induction refill 60, that is, the outer diameter of the accommodating cylinder 62. Therefore, in the multifunctional pen 10 of the present embodiment, the movement of the electromagnetic induction refill 60 is not hindered by the accommodating cylinder 62 hitting the front shaft tapered portion 22D when the electromagnetic induction refill 60 is moved toward the tip end side. The entire contact tip 64 can be exposed from the tip opening 23.

7 (A) is a front view in an exposed state, FIG. 7 (B) is a side view in an exposed state, and FIG. 7 (C) is a sectional view taken along line VII-VII of FIG. 7 (A). (D) is a partially enlarged view of FIG. 7 (C).

As shown in FIGS. 7A and 7C, in the exposed state shown in FIG. 7, the ballpoint pen tip 56 is exposed from the tip opening 23 based on the fact that the writing refill knock rod 32 is moved to the tip side. ing.

Specifically, the flow of change from the immersive state shown in FIG. 1 to the exposed state shown in FIG. 7 is as follows.

First, as the writing refill knock rod 32 moves to the tip side, the writing refill 50 connected to the writing refill knock rod 32 starts moving to the tip side.

When the writing refill 50 moves toward the tip side, the tip portion (the outer peripheral surface of the ballpoint pen tip 56 and the joint 54) of the writing refill 50 comes into contact with the inner peripheral surface of the front shaft tapered portion 22D (see FIG. 2D). After that, the writing refill 50 moves toward the axial center side of the barrel 20, that is, the tip opening 23 along the inclination of the inner peripheral surface of the front shaft tapered portion 22D.

Then, as the movement of the writing refill knock rod 32 to the tip end side is completed, the movement of the writing refill 50 to the tip end side is completed. As a result, as shown in FIG. 7D, the ballpoint pen tip 56 is exposed from the tip opening 23.

(6) Action Effect The multifunctional pen 10 in the present embodiment is attached to the electromagnetic induction refill 60, the knock mechanism 35 as a moving mechanism for moving the electromagnetic induction refill 60 back and forth, and the rear end of the electromagnetic induction refill 60. It is provided with a deformable member 70 having impact resistance. A knock rod 25 (a knock rod 30 for electromagnetic induction refill) constituting the knock mechanism 35 is connected to the rear end of the deforming member 70. That is, in the present embodiment, the electromagnetic induction refill 60 is not directly connected to the knock rod 25.

Here, when the refill such as the electromagnetic induction refill 60 is immersed in the shaft cylinder 20, the restoring force of the spring is used. At the time of this restoration, the impact when the knock rod 25 collides with the shaft cylinder 20 is refilled. If such impacts are repeated, inconveniences such as failure may occur. Since the electromagnetic induction refill 60 has electronic devices built-in, it is highly necessary to reduce the impact at the time of immersion as compared with the written refill 50 such as a ballpoint pen refill.

As described above, in the present embodiment, since the knock rod 25 is connected to the deforming member 70 and the knock rod 25 is not directly connected to the electromagnetic induction refill 60, the knock rod 25 collides with the barrel 20 at the time of immersion. It is prevented that the impact of the time is directly transmitted to the electromagnetic induction refill 60. Further, since the deformable member 70 has impact resistance, the impact indirectly transmitted to the electromagnetic induction refill 60 is also mitigated.

Therefore, according to the present embodiment, in the multifunctional pen 10 in which the electromagnetic induction refill 60 can move back and forth, the impact transmitted to the electromagnetic induction refill 60 at the time of immersion can be alleviated.

Further, the deformable member 70 has a tubular shape, and is provided on the thin-walled portion 72 provided on the front end side of the deformable member 70 and on the rear end side of the deformable member 70, and is thicker in the radial direction than the thin-walled portion 72. It is provided with a thick portion 74. The wall thickness a of the thick portion 74 is 0.5 to 0.7 mm, preferably 0.55 to 0.65 mm, and the axial length b of the thick portion 74 is 1 to 6 mm, preferably 2. It is preferably 5 to 4.5 mm.

In this way, by providing the deformable member 70 with a diameter difference, the impact transmitted to the deformable member 70 can be diffused and the impact resistance of the deformable member 70 can be improved as compared with the case where all the shock absorbing members have the same diameter. it can. For example, when the diameter of the shock absorbing member is about the same as the wall thickness a of the thick portion 74, it lacks flexibility and the impact resistance is lowered as compared with the deformed member 70 having the thin wall portion 72. Will be done. On the other hand, it is difficult to configure the diameter of the shock absorbing member to be about the same as the thickness of the thin portion 72 because the knock rod 25 needs to be connected to the deforming member 70.

From the above, according to the present embodiment, by providing the deformable member 70 with a diameter difference, the impact resistance of the deformable member 70 can be improved as compared with the case where all the shock absorbing members have the same diameter, and the electromagnetic wave The impact indirectly transmitted to the induction refill 60 can be alleviated.

Further, at the rear end of the electromagnetic induction refill 60, a press-fitting portion 66 having a substantially circular cross section, which is press-fitted into the inside of the deforming member 70, specifically, the thin-walled portion 72, and a tip side along the axial direction from the press-fitting portion 66 An extension portion 68 extending to the surface is provided. The outer diameter of the extending portion 68 is smaller than the inner diameter of the thin-walled portion 72 in which the extending portion 68 is housed. With this configuration, in the present embodiment, a gap 65 between the extending portion 68 and the thin-walled portion 72 is formed at the connecting portion between the electromagnetic induction refill 60 and the deforming member 70. As a result, in the present embodiment, the electromagnetic induction refill 60 can be displaced in the radial direction of the barrel 20 within the range of the gap 65. As a result, in the exposed state shown in FIG. 6C, the electromagnetic induction refill 60 is tilted with respect to the axial center of the deforming member 70.

On the other hand, when the entire insertion portion of the electromagnetic induction refill 60 is press-fitted into the thin-walled portion 72, it becomes difficult for the electromagnetic induction refill 60 to incline with respect to the axial center of the deforming member 70, and the electromagnetic induction in the exposed state. It is assumed that the refill 60 is in a slightly bent state. As described above, since the electromagnetic induction refill 60 has electronic devices built-in, it is not desirable to be in a slightly bent state because inconveniences such as failure may occur.

However, in the present embodiment, since the electromagnetic induction refill 60 can be tilted with respect to the axial center of the deforming member 70, bending of the electromagnetic induction refill 60 is suppressed in the exposed state shown in FIG. 6C.

From the above, according to the present embodiment, when the electromagnetic induction refill 60 can be tilted with respect to the axial center of the deforming member 70, the entire insertion portion of the electromagnetic induction refill 60 is press-fitted into the thin portion 72. In comparison, it is possible to suppress the occurrence of inconveniences such as failure in the electromagnetic induction refill 60.

Further, a functional member 26 as an input unit having an electronic pen function is provided at the rear end of the rear shaft 24. Since this functional member 26 is supposed to be used for input by the capacitance type, the electromagnetic induction refill 60 used for the input by the electromagnetic induction method and the functional member 26 described above have various input formats. It can correspond to the input device of.

Further, in the present embodiment, since the electromagnetic induction refill 60 and the written refill 50 are removable from the shaft cylinder 20, they can be replaced with new refills in the event of failure or wear. Then, in the present embodiment, each of the deforming member 70 and the two writing refills 50 connected to the electromagnetic induction refill knock rod 30 or the writing refill knock rod 32 is connected to an arbitrary knock rod 25. Can be done. Specifically, the inner diameter of the thick portion 74 and the inner diameter of the rear end side of the writing refill 50 are equal to each other. Therefore, in the present embodiment, the deforming member 70 can be connected to the writing refill knock rod 32, and the writing refill 50 can be connected to the electromagnetic induction refill knock rod 30. With this configuration, for example, it is possible to make a multifunctional pen 10 having a plurality of electromagnetic induction refills 60, or to make a multifunctional pen 10 in which all three are written refills 50.

Here, in the electromagnetic induction refill 60 and the writing refill 50, the maximum diameter of the electromagnetic induction refill 60 is larger than the maximum diameter of the writing refill 50. Therefore, in the structure of the front shaft tapered portion 22D that matches the writing refill 50 having a small outer diameter and thickness, the accommodating cylinder 62 hits the front shaft tapered portion 22D when the electromagnetic induction refill 60 is moved to the tip side, and the electromagnetic induction refill It is assumed that the movement of 60 is hindered.

However, in the present embodiment, the diameter is expanded along the axial direction so as to have the maximum diameter of the electromagnetic induction refill 60, that is, the inner diameter larger than the outer diameter of the accommodating cylinder 62 inside the tip side of the front shaft tapered portion 22D. The enlarged diameter portion 22F is provided. Therefore, according to the present embodiment, the refill having a maximum diameter larger than that of the written refill 50 (eg, the electromagnetic induction refill 60) can be smoothly moved, and the written refill 50 and the refill having a larger diameter than the written refill 50 are larger. A multifunctional pen 10 with a refill can be provided.

Further, in the present embodiment, of the three knock rods 25, the clip 30B is provided on the knock rod 30 for electromagnetic induction refill for moving the electromagnetic induction refill 60 back and forth. That is, the shape of the electromagnetic induction refill knock rod 30 is different from the shape of the writing refill knock rod 32 because the clip 30B is attached.

Therefore, according to the present embodiment, it is possible to improve the distinctiveness of the type of refill to be moved back and forth as compared with the case where the three knock rods 25 have the same shape.

(7) Others The shape of the deformable member 70 is not limited to that shown in FIG. 5, and may be another shape.

(7-1) First Modified Example FIG. 8 (A) is a perspective view of the deformed member 70 in the first modified example, and FIG. 8 (B) is a front view of the deformed member 70 in the first modified example. 8 (C) is a sectional view taken along line VIII-VIII of FIG. 8 (B).

As shown in FIG. 8, the deforming member 70 in the first modified example is formed with a plurality of penetrating portions 76 penetrating the thin wall portion 72 in the radial direction. As shown in FIG. 8B, the penetrating portion 76 has a substantially elliptical shape when viewed from the front.

As described above, the deformable member 70 in the first modified example shown in FIG. 8 structurally enhances the flexibility of the thin-walled portion 72 as compared with the deformed member 70 shown in FIG. 5 by forming the penetrating portion 76. By doing so, the impact resistance is improved.

(7-2) Second Modified Example FIG. 9 (A) is a perspective view of the deformed member 70 in the second modified example, and FIG. 9 (B) is a front view in the second modified example.

As shown in FIG. 9, the deforming member 70 is composed of an unequal pitch coil spring whose pitch is not uniform over the length direction. That is, in the unequal pitch coil spring, the pitch in the narrow spacing portion 78, which is the region on the rear end side, is formed to be narrower than the pitch in the wide spacing portion 77, which is the other portion. Here, the wide interval portion 77 having a wider pitch has a higher effect of mitigating the impact than the narrow interval portion 78. The rear end of the electromagnetic induction refill 60 is attached to the tip of the wide interval portion 77. Then, when the electromagnetic induction refill 60 is immersed inside the barrel 20, the impact when the knock rod 25 collides with the barrel 20 is further compressed by the wide interval portion 77 to which the electromagnetic induction refill 60 is directly connected. By doing so, the deforming member 70 is deformed, and the impact directly transmitted to the electromagnetic induction refill 60 is alleviated.

As described above, the deforming member 70 in the second modification shown in FIG. 9 is an unequal pitch coil in which the pitch of the wide spacing portion 77 on the front end side is wider than the pitch of the narrow spacing portion 78 on the rear end side. Since it is composed of a spring, the effect of mitigating the impact on the electromagnetic induction refill 60 attached to the tip of the wide interval portion 77 is enhanced.

(7-3) Third Modified Example FIG. 10 (A) is a perspective view of the deformed member 70 in the third modified example, FIG. 10 (B) is a front view in the third modified example, and FIG. 10 (C). Is a cross-sectional view taken along the line XX of FIG. 10 (B).

As shown in FIG. 10, the deformable member 70 has a structure in which two coil springs having different lengths, diameters, and pitches are connected via a connecting member 79. That is, of the two coil springs, the shorter, smaller diameter, and narrower pitch coil spring is the rear end side narrow spacing portion 78, and is longer, larger diameter, and The coil spring having a wider pitch is the wide interval portion 77 on the tip side. The connecting member 79 is a cylindrical member provided with a through hole 75 along the axis.

In the through hole 75, the large-diameter portion 75A on the front end side and the small-diameter portion 75B on the rear end side, which has a smaller diameter than the large-diameter portion 75A, communicate with each other through a communication hole 75C having a smaller diameter than the small-diameter portion 75B. Has a structure to Then, the rear end of the wide-spaced portion 77 is press-fitted into the large-diameter portion 75A, and the tip of the narrow-spaced portion 78 is press-fitted into the small-diameter portion 75B to connect the wide-spaced portion 77 and the narrow-spaced portion 78. It is connected by the member 79 to become the deformable member 70.

Here, the wide interval portion 77 having a wider pitch has a higher effect of mitigating the impact than the narrow interval portion 78. The rear end of the electromagnetic induction refill 60 is attached to the tip of the wide interval portion 77. Then, when the electromagnetic induction refill 60 is immersed inside the barrel 20, the impact when the knock rod 25 collides with the barrel 20 is further compressed by the wide interval portion 77 to which the electromagnetic induction refill 60 is directly connected. By doing so, the deforming member 70 is deformed, and the impact directly transmitted to the electromagnetic induction refill 60 is alleviated.

As described above, in the deforming member 70 in the third modified example shown in FIG. 10, the pitch of the wide spacing portion 77 on the front end side is formed wider than the pitch of the narrow spacing portion 78 on the rear end side. The effect of mitigating the impact on the electromagnetic induction refill 60 attached to the tip of the wide interval portion 77 is enhanced.

(7-4) Fourth Modified Example FIG. 11 (A) is a perspective view of the deformed member 70 in the fourth modified example, FIG. 11 (B) is a front view in the fourth modified example, and FIG. 11 (C) is a front view. A side view of the fourth modification, FIG. 11 (D) is a bottom view of the fourth modification, and FIG. 11 (E) is a sectional view taken along line XI-XI of FIG. 11 (B).

The deformable member 70 of the fourth modification is a tubular body made of synthetic resin having the same physical properties as the deformable member 70 mentioned in (4) above, and has impact resistance. As shown in FIG. 11, the deforming member 70 has a through hole 75 (see FIGS. 11D and 11D) penetrating in the front-rear direction. Further, three claw-shaped elastically deformed portions 73 are formed by notches 71 (see FIG. 11D) provided at three locations at the tip at equal intervals. The rear end of the electromagnetic induction refill 60 is attached to the deforming member 70 so as to be gripped by these elastic deforming portions 73. The elastically deformed portion 73 can be elastically deformed in the radial direction by pressure contact with the outer periphery of the rear end of the electromagnetic induction refill 60.

When the electromagnetic induction refill 60 is immersed in the shaft cylinder 20, the impact when the knock rod 25 collides with the shaft cylinder 20 is transmitted to the deforming member 70. At this time, the impact on the electromagnetic induction refill 60 is alleviated by deforming the elastically deformed portion 73 so as to expand in the radial direction due to the force of the electromagnetic induction refill 60 moving backward.

(8) Summary In the above embodiment, a spring 34 for immersing the electromagnetic induction refill 60 inside the barrel 20 by a restoring force and a spring 36 for immersing the written refill 50 inside the barrel 20 by a restoring force. Regarding the load, it is desirable to make the spring load of the spring 34 different from that of the spring 36 and reduce the spring load of the spring 34. With this configuration, it is easy to recognize the difference from the written refill 50, and the electromagnetic induction refill 60 can be slowly immersed inside the barrel 20 to alleviate the impact transmitted to the electromagnetic induction refill 60. be able to.

The writing instrument described in the above embodiment was a multifunctional pen 10 in which one electromagnetic induction refill 60 and two writing refills 50 were housed inside the barrel 20. However, the writing instrument that realizes the configuration of the present invention is not limited to the multifunctional pen 10, and may be an electromagnetic induction touch pen in which one electromagnetic induction refill 60 is housed inside the barrel 20.

In the above embodiment, the electromagnetic induction refill 60 can be tilted with respect to the axial center of the deforming member 70 to prevent the electromagnetic induction refill 60 from bending in the exposed state. However, the present invention is not limited to this, and the electromagnetic induction refill 60 and the deforming member 70 may be made tiltable with respect to the axial direction to prevent the electromagnetic induction refill 60 from bending in the exposed state.

For example, a portion to be press-fitted into the thick portion 74 is provided on the rear end side of the mounting portion 30H of the electromagnetic induction refill knock rod 30, and a portion smaller than the inner diameter of the thick portion 74 is provided on the tip side of the mounting portion 30H. Therefore, a space may be formed at the connecting portion between the electromagnetic induction refill knock rod 30 and the deforming member 70. As a result, the deformable member 70 can be displaced in the radial direction of the barrel 20 within the above space. As a result, the electromagnetic induction refill 60 and the deforming member 70 can be tilted in the axial direction in the exposed state, and the electromagnetic induction refill 60 can be prevented from bending.

In the above embodiment, in order to facilitate refill replacement compatible with the written refill 50, the attachment force between the electromagnetic induction refill 60 and the deforming member 70 is the same as that of the electromagnetic induction refill knock rod 30. It is desirable that the attachment force with the deformable member 70 is higher than that.

Further, in FIG. 6C, when the movement of the electromagnetic induction refill knock rod 30 to the tip end side is completed, the tip end of the deforming member 70 is located on the rear end side of the tip end of the rear shaft 24. That is, the deforming member 70 is immersed in the rear shaft 24 when the movement of the electromagnetic induction refill knock rod 30 toward the tip end side is completed. However, not limited to this, as a modification, the tip of the deformable member 70 is made to be exposed from the tip of the rear shaft 24 by increasing the axial length of the deformable member 70 so that the tip of the deformable member 70 is exposed from the tip of the rear shaft 24. It may be exposed from the tip of. With this configuration, if the deforming member 70 is accidentally left inside the rear shaft 24 when the electromagnetic induction refill 60 is removed from the multifunction pen 10, the deformation housed inside the rear shaft 24 is deformed. The member 70 alone can be grasped with a finger, and the deformable member 70 can be easily removed.

10 Multi-function pen 20 Shaft cylinder 22 Front shaft 22A Front shaft rear 22B Front shaft flange 22C Front shaft front 22D Front shaft taper 22E Front shaft male screw 22F Enlarged part 23 Tip opening 24 Rear shaft 24A Window hole 24B Clip protrusion 24C Rear shaft female screw 25 Knock rod 26 Functional member 26A Connection part 26B Hemisphere part 30 Knock rod for electromagnetic induction refill 30A Knock protrusion 30B Clip 30C Holding part 30D Knock rod body 30E Release protrusion 30F Locking protrusion 30G Locking step 30H Part 30I Spring support end 32 Knock rod for writing refill 34 Spring 35 Knock mechanism 36 Spring 40 Inner cylinder 42 Guide cylinder 50 Writing refill 52 Ink storage pipe 54 Fitting 56 Ballpoint pen tip 60 Electromagnetic induction refill 62 Storage cylinder 64 Contact tip 65 Void 66 Press-fit Part 68 Extension part 70 Deformation member 71 Notch part 72 Thin wall part 73 Elastic deformation part 74 Thick part 75 Through hole 75A Large diameter part 75B Small diameter part 75C Communication hole 76 Penetration part 77 Wide interval part 78 Narrow interval part 79 Connecting member

Claims (9)

A shaft tube having a tip opening, which is a tip opening,
An electromagnetic induction refill that is housed inside the barrel and has a contact tip that can appear and disappear from the tip opening and is used for input by the electromagnetic induction method.
A moving mechanism that moves the electromagnetic induction refill in the axial direction of the barrel,
A deformable member with impact resistance attached to the rear end of the electromagnetic induction refill,
An electromagnetic induction stylus equipped with. The deformable member has a tubular shape and is provided on the front end side of the deformable member to which the electromagnetic induction refill is mounted and on the rear end side of the deformable member. The electromagnetic induction touch pen according to claim 1, further comprising a thick portion that is thick in the radial direction of the deformable member. At the rear end of the electromagnetic induction refill, a press-fitting portion to be press-fitted into the inside of the deforming member and an extending portion extending from the press-fitting portion to the contact tip side are provided.
The electromagnetic induction touch pen according to claim 2, wherein the outer diameter of the extending portion is smaller than the inner diameter of the thin-walled portion in which the extending portion is housed. The electromagnetic induction touch pen according to any one of claims 1 to 3, wherein the deformable member is made of a material having rubber elasticity. The electromagnetic induction touch pen according to any one of claims 1 to 3, wherein the deforming member is an unequal pitch coil spring. The deformable member is a tubular body made of synthetic resin having a through hole penetrating in the front-rear direction, and has an elastically deformed portion that can be elastically deformed in the radial direction by pressure contact with the outer periphery of the rear end of the electromagnetic induction refill. The electromagnetic induction touch pen according to any one of claims 1 to 3 having the above. The electromagnetic induction touch pen according to any one of claims 1 to 6, wherein an input unit having an electronic pen function is provided on the rear end side of the barrel. The electromagnetic induction refill provided in the electromagnetic induction touch pen according to any one of claims 1 to 7, and the electromagnetic induction refill.
A writing refill that is housed inside the barrel and has a writing tip that can appear and disappear from the tip opening, and whose maximum diameter is smaller than the maximum diameter of the electromagnetic induction refill.
With
The shaft cylinder includes a body portion along the axial direction and a tapered portion continuous with the tip end of the body portion and decreasing in diameter toward the tip end side in the axial direction.
A multifunctional pen provided with an enlarged diameter portion along the axial direction so as to have an inner diameter larger than the maximum diameter of the electromagnetic induction refill inside the tip side of the tapered portion. The moving mechanism is a knock mechanism that moves the electromagnetic induction refill and the written refill in the axial direction.
The knock mechanism includes a plurality of knock rods that move the electromagnetic induction refill or the written refill in the axial direction by a knock operation.
The multifunctional pen according to claim 8, wherein a clip is provided on the knock rod for moving the electromagnetic induction refill in the axial direction.