JP4815145B2 - Pen-type input device, pen, and holding member for holding a pen core - Google Patents

Description

  The present invention relates to a pen-type input device and a pen that communicate with, for example, a computer device, and more particularly to a pen-type input device with an improved pen-pin holding mechanism.

  In recent years, for example, a pen-type input device has attracted attention as an information input device for a computer device. In this pen type input device, in addition to the printing function of an original pen, there is known a device equipped with an electronic device that digitally records the content printed with the pen (see, for example, Patent Document 1). In a conventional pen-type input device, position information provided on a paper surface is read by an optical sensor, and various types of information such as used time, pen tilt, and pen serial information are acquired. Further, Patent Document 1 discloses a pen-type input device provided with a writing pressure sensor that detects a state in which a pen tip is pressed against a paper surface by a user's writing operation on the paper surface.

  In a pen-type input device provided with such a writing pressure sensor, for example, a holding mechanism that holds a pen core containing ink of a ballpoint pen may be provided. This pen core is generally replaceable, and this holding mechanism is also required to allow easy insertion and removal of the pen core and to hold the attached pen core stably. Is done. As a holding mechanism for a replaceable ball-point pen core, there is a conventional technique that is constituted by, for example, an elastomer cylindrical part and holds the pen core by using a frictional resistance after press-fitting the pen core. In addition, there is a type in which a pen core is press-fitted and held in a resin cylindrical part.

JP 2003-308163 A

  However, when trying to replace the pen core without disassembling the pen body, in the conventional holding mechanism, permanent strain occurs due to the passage of time or temperature environment, resulting in a phenomenon that the holding power is reduced. . In addition, the pen core outer diameter also changes with the passage of time, causing a problem that the holding force by the holding mechanism is reduced and the pen core is easily removed. Further, the rear end portion of the pen core needs to be ventilated to eject ink, and the holding part also needs to have a vent hole. There is a demand for a holding mechanism that is unlikely to be deformed in a state where such a vent is provided.

The present invention has been made to solve the technical problems as described above, and an object of the present invention is to make it possible to replace the pen core without disassembling the pen body, and to change the pen core incorporated. In the holding mechanism of the pen core to be held, a reduction in the pen core holding force due to permanent distortion is suppressed.
Another object is to secure a vent hole to the rear end of the pen core in a state where the pen core of the ballpoint pen is well held.
Still another object of the present invention is to realize good pen pressure detection for a sensor element when pen pressure is detected when used with a sensor element for detecting pen pressure in a pen-type input device.

  For this purpose, a pen-type input device to which the present invention is applied includes a main body, a pen core attached to the main body, a sensor element for detecting a writing pressure of a user obtained from the pen core, and a pen core. A holding member that holds and pressurizes the sensor element, and the holding member is provided between the opening for receiving the pen core, the pressurizing unit provided toward the sensor element, and the opening and the pressurizing unit. And a pen lead holding part for holding the pen lead.

Here, the pen core holding portion of the holding member forms a spring mechanism that is held at both ends of the opening and the pressure portion of the holding member.
The holding member is made of resin, and the pen core holding portion of the holding member holds the pen core using elastic deformation of the resin using a slit provided between the opening and the pressurizing portion. It is characterized by that. According to these holding members, it is possible to reduce deformation of the elastic portion by supporting both ends of the elastic portion of the resin.

In addition, the sensor element includes a pressure-sensitive conductive elastomer made of an elastic member, and the pressurizing portion of the holding member pressurizes the pressure-sensitive conductive elastomer with a writing pressure by a user.
Further, the elastic member of the sensor element is formed by laminating a pressure-sensitive conductive elastomer and a protective member that protects the pressure-sensitive conductive elastomer, and the pressurizing portion of the holding member is in contact with the protective member to sense it. The piezoelectric conductive elastomer is pressurized.
Still further, the sensor element has a spiral electrode pattern, and the pressurizing portion of the holding member is sized according to the shape of the electrode pattern, and the pressurizing surface forming a part of the spherical surface is provided. If it is provided, it is preferable in that a good pen pressure can be detected by the sensor element.

  On the other hand, a pen to which the present invention is applied includes a main body, a pen core mounted from the front end direction of the main body, and a holding member that is provided in the main body and holds the mounted pen core. The pen which is located between the one end positioned on the receiving port side of the pen core to be mounted, the other end positioned on the abutting side of the pen core to be received, and the pen core positioned between the one end and the other end The pen core holding portion is characterized in that the pen core holding portion holds the pen core by a spring mechanism supported at both ends of one end and the other end.

Here, the pen core holding portion of the holding member has a shape along the outer diameter of the pen core, and the holding member is inserted into the pen core holding portion by press-fitting the pen core into the pen core holding portion. It is characterized by holding.
In addition, the holding member is made of resin, and the pen core holding portion of the holding member holds the pen core by deformation of the resin.
Furthermore, if the holding member is provided with a vent hole for discharging ink from the pen core on the other end side, the rear end portion of the pen core of the ballpoint pen can be ventilated and ink can be discharged well. It is excellent in that it can be made.

  From another point of view, the present invention is a holding member that is provided inside a pen and holds a pen core inserted from one side, and an opening that receives the pen core inserted from one side. An abutting part that abuts the pen core, and a pen core holding part that is positioned between one end located on the opening side and the other end located on the abutting part side to hold the pen core. The pen core holding part can hold the pen core by a spring mechanism supported at both ends of one end and the other end.

  Here, the holding member is formed of resin, and the pen core holding unit holds the pen core using elastic deformation of the resin using a slit provided between the opening and the pressure unit. By making this possible, it is possible to suppress a decrease in the pen core holding force due to permanent distortion with a simple configuration.

  According to the present invention, in a pen having a pen core holding mechanism that allows the pen core to be replaced without disassembling the pen body and that holds the pen core that has been incorporated, the pen core holding force is reduced due to permanent distortion of the holding mechanism. It can be greatly reduced.

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.
FIG. 1 is a perspective view showing the overall configuration of a pen-type input device to which the present embodiment is applied. The pen-type input device shown in FIG. 1 includes a pen body 10 that is one of portable electronic devices, and a cap 30 that functions as a pen tip protection or switch for the pen body 10.
The pen body 10 is entirely covered with an exterior case 11. A strap hole 19 for attaching the strap 39 is provided at the rear end of the pen body 10. The pen body 10 has an outer shape that gradually decreases in diameter as it goes from the intermediate portion to both ends, and is formed so as to become familiar with the hand when the user grips it. The pen body 10 is provided with an indicator unit 24. The indicator unit 24 includes an LED (Light Emitting Diode), a liquid crystal panel, and the like, and can display, for example, a remaining battery level.

The pen body 10 configured as described above has an electronic function of reading and storing the written content, for example, optically and communicating with an external computer device as necessary, in addition to a writing function similar to a normal ballpoint pen. I have.
The cap 30 is attached to a cap body 31 for covering the pen tip of the pen body 10, a notch 32 formed by cutting out a part of the edge 31 a of the cap body 31, and an outer surface 31 c of the cap body 31. And a clip 34 for holding paper or the like.
When the pen body 10 is not used, as shown in FIG. 1, the tip of the pen is covered with a cap 30 to protect the pen tip and prevent the pen ink from drying. When the pen body 10 is used, the cap 30 is removed and sufficiently inserted and engaged with the rear end of the pen body 10 to hold the cap 30 with the pen body 10 and prevent the cap 30 from being lost. be able to.

  Here, about the attachment of the cap 30 and the pen main body 10, directionality is given. That is, if the cap 30 and the pen body 10 are not in a specific positional relationship, the cap 30 can be engaged with the pen body 10 so that the inner surface shape of the cap 30 and the front and rear ends of the pen body 10 The outer surface shape is formed. Specifically, when the cap 30 is inserted into the front end portion or the rear end portion of the pen body 10, the cutout portion 32 is configured to be positioned on the indicator portion 24 side. The cap 30 includes a magnet (not shown) on the inner surface of the cap body 31. This magnet is a component for corresponding to a switch mechanism (not shown) provided in the pen body 10. That is, when the cap 30 is removed from the tip end side of the pen body 10, the switch is turned on to turn on the power, and when the tip end side of the pen body 10 is attached to the cap 30, the switch is turned off. Thus, by enabling the switch to be turned on / off by attaching the cap 30, it is possible to improve the feeling of use by the user and to suppress unnecessary power consumption due to forgetting to turn off the switch.

  FIG. 2 is a diagram showing an example in which the pen body 10 is used on an indoor desk or the like. Here, a cradle 50 for placing the pen body 10 on a desk or the like and enabling charging and communication is shown. The cradle 50 includes a separation unit 51 that holds the inserted pen body 10 and a base 52 that can be attached with the separation unit 51, thereby constituting a separation-type cradle. Here, a USB cable 53 as an interface connected to the USB connector of the separation unit 51 is shown. The cradle 50 including the separation unit 51 and the base 52 has a function for placing the pen body 10 and a function for charging the pen body 10 and communicating with an external terminal. The base 52 is provided with a weight (not shown) inside in order to increase stability when it is placed. Further, the separation unit 51 has a charging function and a communication function. When the user takes the pen body 10 outside and uses it, only the separation unit 51 is removed from the cradle 50 and taken out, so that charging or communication can be performed outside. The separation unit 51 does not have a function for placing a weight or the like and is lightweight, and by carrying it separately, the portability can be improved.

  FIG. 3 is a partial cross-sectional view for explaining the structure of the pen body 10. The pen body 10 is entirely covered with the exterior case 11 as described in FIG. And the exterior case 11 of the pen main body 10 is comprised so that attachment of the pen core 12 which has the pen point 12a which protrudes at the front-end | tip of the exterior case 11 is possible. The pen core 12 stores ink ejected from the pen tip 12 a and is attached to the pen body 10 by being inserted from the front end of the exterior case 11. Moreover, it can be removed from the pen body 10 by grasping and pulling out the pen tip 12a. The exterior case 11 includes a writing pressure sensor unit 100 that detects the writing pressure of the user transmitted through the pen core 12. The writing pressure sensor unit 100 includes a sensor element 110 that is a small pressure-sensitive sensor, and a holding member (pressure element) 130 that holds the pen core 12 and presses the sensor element 110.

  The pen body 10 includes an optical module 15 that reads a dot pattern provided by, for example, Anoto. Furthermore, a terminal 16 for supplying power for charging the pen body 10 and communicating with an external computer is provided. The terminal 16 is connected to a terminal (not shown) of the separating unit 51 and can be energized when the pen body 10 is inserted into the separating unit 51 shown in FIG. Furthermore, the pen body 10 includes a battery 17 made of, for example, a lithium ion battery that becomes a power source of the pen body 10 by discharging after charging, and a vibrator 18 that vibrates when the power is turned on, for example. . In addition, a substrate 20 on which various integrated circuits and electronic components are mounted is provided inside the pen body 10. An optical module 15 is mounted on the substrate 20, and a processor 21 that controls the entire pen body 10 and a memory 22 that stores information (written contents, position information, etc.) read by the optical module 15. For example, a wireless communication module 23 for performing wireless communication by Bluetooth (trademark) or the like is provided.

  FIG. 4 is a perspective view for explaining the structure of the frame 40 that holds the pen core 12. The frame 40 is a resin-made longitudinal member (insulating member) configured to be able to support the pen core 12 and to be engageable with the substrate 20. Such a frame 40 includes a head portion 41, a groove portion 42, and a holding member regulating piece 43.

  The head portion 41 is provided at one end portion of the frame 40 and constitutes an end portion of the pen body 10 (see FIG. 3) on the pen tip 12a side. Therefore, a through hole (not shown) for exposing the pen tip 12a of the pen core 12 supported by the frame 40 to the outside is formed. The groove portion 42 is for receiving the pen core 12 and supporting (holding) the pen core 12 so as to be movable in the axial direction. The groove portion 42 has a cross-sectional shape corresponding to the shape of the pen core 12, and the longitudinal direction of the frame 40. It is extended and formed. Moreover, the groove part 42 is formed on the extension so that the holding member 130 of the writing pressure sensor part 100 can be received. The holding member 130 is a member for detachably inserting (press-fitting) the pen core 12 from the end (the back end) of the pen core 12 opposite to the pen tip 12a. In other words, when the user holds the pen body 10 in his hand and writes characters or the like on the dedicated paper, the writing pressure is input from the pen core 12 to the holding member 130. That is, when the pressure applied to the pen core 12 by the user is transmitted to the holding member 130, the holding member 130 presses the sensor element 110. The sensor element 110 detects the pressure (writing pressure) and outputs the detection result to the processor 21.

The holding member regulating piece 43 shown in FIG. 4 regulates the holding member 130 so that the movement amount of the holding member 130 in the longitudinal direction of the frame 40 is within a predetermined range when the holding member 130 is received in the frame 40. To do.
The holding member restricting piece 43 extends so as to cross over the groove portion 42. When the pen core 12 is inserted into the holding member 130 in the groove portion 42, the holding member restricting piece 43 acts so that the pen core 12 and the holding member 130 do not fall out of the groove portion 42.

FIG. 5 is a diagram illustrating a configuration of the writing pressure sensor unit 100 to which the present exemplary embodiment is applied. As described above, the writing pressure sensor unit 100 is mainly composed of the sensor element 110 and the holding member (pressure element) 130. The sensor element 110 includes an FPC (Flexible Printed Circuit) electrode 111 and an FPC lead 112 that connects the FPC electrode 111 and a terminal on the substrate 20 (see FIG. 4). The sensor element 110 includes a pressure-sensitive conductive elastomer 120 provided at a position facing an electrode pattern (described later) of the FPC electrode 111 and a protective cover 121 that protects the pressure-sensitive conductive elastomer 120.
On the other hand, the holding member 130 is made of a hard insulating material that is sufficiently hard with respect to the protective cover 121 of the sensor element 110, and the contact surface thereof has a smooth spherical surface (described later). By pressurizing the sensor element 110 with the holding member 130, the pen pressure sensor unit 100 having high durability against a repeated load when the resistance value is changed and pressure (load) is detected with high sensitivity. Realized.

  FIG. 6 is a view for explaining the shape of the FPC electrode 111 constituting the sensor element 110 of the writing pressure sensor unit 100. The FPC electrode 111 is formed with a spiral electrode pattern 113 at the center of an electrode having a diameter (φ) of 4 mm, for example, and when pressure is applied by the holding member 130 (see FIG. 5), the pressure-sensitive conductivity is evenly distributed from the center of the electrode pattern 113. The electrode can be brought into contact with the conductive elastomer 120. The electrode pattern 113 of the FPC electrode 111 is obtained by adding a nickel / gold plating of 3.5 μm to a copper electrode of 12 μm, and an FPC coverlay 114 having a thickness of 25 μm is formed on the outer periphery of the φ4 mm electrode surface. Has been. By disposing the FPC coverlay 114 on the outer peripheral portion of the φ4 mm electrode surface, it is possible to ensure a certain gap between the FPC electrode 111 and the pressure-sensitive conductive elastomer 120.

  FIG. 7 is a view showing a cross section of the sensor element 110 in the writing pressure sensor unit 100. As shown in FIG. 7, in the sensor element 110 of the writing pressure sensor unit 100, an electrode pattern 113 and an FPC coverlay 114 surrounding the electrode pattern 113 are formed on the FPC electrode 111. The FPC coverlay 114 is bonded to the pressure-sensitive conductive elastomer 120 at the first bonding portion 122. The FPC coverlay 114 is preferably made of PET (polyethylene terephthalate) or Kapton (trademark), which is a polyimide film having excellent heat resistance and cold resistance, and has high hardness and is difficult to be compressed. As the pressure-sensitive conductive elastomer 120, for example, Inastomer # 86 manufactured by Inaba Rubber Co., Ltd. having a thickness of 0.5 mm was used. The adhesion region of the first adhesion part 122 is on the FPC cover lay 114 outside the φ4 mm electrode pattern formation region on the FPC electrode 111.

  In addition, the pressure-sensitive conductive elastomer 120 is bonded to the protective cover 121 at the second bonding portion 123. As the protective cover 121, for example, urethane rubber (hardness 70Hs) having a thickness of 0.5 mm is used. Further, the adhesion region by the second adhesion part 123 is only outside the electrode pattern formation region of φ4 mm, similarly to the adhesion region of the first adhesion part 122. As a result, the pressure-sensitive conductive elastomer 120 and the protective cover 121 are not bonded by an adhesive in the region corresponding to the φ4 mm electrode pattern forming region. This region is a portion where pressure from the holding member 130 is preferentially applied. By setting this region as a non-adhesion region, a portion to which resistance such as a lateral displacement force is applied becomes free when a writing pressure is applied through the holding member 130 from an oblique direction, for example. And by making this part free, it becomes possible to apply pressure equally to the electrode pattern 113.

  Here, when the pressure member (described later) of the holding member 130 is directly brought into contact with the pressure-sensitive conductive elastomer 120 without providing the protective cover 121, it cannot withstand the repeated load as described above, and is quick. At that point, the pressure-sensitive conductive elastomer 120 had a hole. Moreover, if a hard material is selected as the protective cover 121, the surface pressure with respect to the pressure-sensitive conductive elastomer 120 becomes large, and it becomes difficult to obtain a preferable sensitivity. Therefore, in the present embodiment, by adopting urethane rubber (hardness 70Hs) having a thickness of 0.5 mm for the protective cover 121, the sensor element 110 that achieves high sensitivity characteristics by appropriate pressure dispersion is realized. . In the sensor element 110 formed as described above, the element external size of the sensor pressure-sensitive portion is 1.5 mm or less. It is a variable resistance pressure sensor that covers a dynamic range of 0 to 500 gf, and the resistance value changes from 40 kΩ or more at no load to 120 kΩ or less at a load of 30 gf. The high durability sensor that can maintain the performance of is realized.

Next, the holding member 130 of the writing pressure sensor unit 100 will be described with reference to FIGS.
FIG. 8 is a perspective view showing the configuration of the holding member 130. FIG. 9 is a cross-sectional view of the cylindrical holding member 130 shown in FIG. 8 cut in the vertical direction. Further, FIG. 10 is a cross-sectional view of the holding member 130 shown in FIG. 8 cut in the lateral direction. As the material of the holding member 130, a resin containing polycarbonate glass fiber having good permanent strain resistance is used.

  The holding member 130 to which this exemplary embodiment is applied has a function of holding the pen core 12 (see FIG. 3) and an elastic member (the protective cover 121 and the pressure-sensitive conductive elastomer 120) of the sensor element 110 (see FIG. 5). It has a function to pressurize. The holding member 130 includes an opening portion side (one end) 131 having an opening portion 131a for receiving the pen core 12, a pressing portion side (other end) 132 having a pressing portion 132a provided toward the elastic member side, An elastic mechanism 133 is provided between the opening portion 131 and the pressurizing portion side 132 and has a pen core holding portion 133a (see FIGS. 9 and 10) that holds the pen core 12 on the inner wall. The elastic mechanism portion 133 forms a spring mechanism in which both ends are held by a plurality of (two in the present embodiment) slits 136, the opening portion side 131, and the pressing portion side 132. By providing slits 136 on both sides of the pen core holding portion 133a in the longitudinal direction, it is possible to cause an appropriate elastic deformation in the elastic mechanism portion 133 of the holding member 130 in a state where the pen core 12 is press-fitted and held. is there. In addition, the pressurizing part 132a that is the end face of the pressurizing part side 132 forms a smooth spherical surface having a radius (R) of 10 mm as described above, so that the impact of the pen core 12 is locally generated. The holding member 130 can be softly brought into contact with the protective cover 121 made of urethane rubber or the like. Even when the writing pressure is generated from an oblique direction, a good writing pressure can be detected by appropriate load distribution.

  The opening 131a, which is the inner surface of the opening 131, is larger than the diameter of the pen core 12, so that the press-fitting stress of the pen core 12 is not directly applied. The pen core holding portion 133a of the elastic mechanism portion 133 that is an inner surface intermediate portion has a shape that is narrowed to be smaller than the other inner diameter, and the pen core 12 is press-fitted and held at this portion. The cross-sectional shape of the pen core holding portion 133a is a shape along the outer diameter of the pen core 12, and is configured to increase the contact area with the pen core 12. As a result, in addition to the elastic force of the pen core holding part 133a, the frictional force is also improved, and the holding force of the pen core 12 can be further increased. Further, the innermost portion (abutting portion) 134 (FIG. 9) is located at a position where the rear end portion (opposite side of the pen tip 12 a) of the inserted pen core 12 abuts on the pressing portion side 132 of the inner surface of the holding member 130. Reference) is provided. Further, a vent hole 138 is provided on the pressure portion side 132 of the holding member 130, and ensures ventilation for ejecting ink to the rear end portion of the inserted pen core 12. Further, the innermost innermost part 134 is provided with a lateral hole 137 for opening the inner diameter stop and for securing the ink vent hole 138, and a direct stress from the pen core 12 is also applied to this part. It has a structure that does not participate.

Here, in order to be able to replace the pen core 12 without disassembling the pen body 10, it is necessary to be able to be easily inserted and removed from the pen tip 12 a which is the tip of the pen core 12. For this purpose, it is necessary to always apply a constant load to the pen core 12 when the pen core 12 is press-fitted into the holding mechanism. At this time, in the conventional holding mechanism, permanent distortion occurs due to the passage of time or the change of the temperature environment, and the holding force is reduced due to the passage of time and the change of the outer diameter of the pen core, so that the pen core is easily removed. There was a problem.
On the other hand, the holding member 130 to which the present embodiment is applied uses a spring mechanism that supports both ends, whereby both ends of the bending deformation portion are held with respect to the bending deformation when the pen core 12 is press-fitted. This makes it possible to obtain a structure that does not easily cause permanent distortion.

  As described above in detail, in the present embodiment, a sensor element that is a pressure-sensitive sensor using a pressure-sensitive conductive elastomer is employed in the pen-type input device. This sensor element secures a specific gap between the height of the electrode pattern and the height of the FPC coverlay, and a protective cover, which is urethane rubber for surface protection, is arranged in a layered manner on the pressure-sensitive conductive elastomer. . With such a structure, for example, a small sensor structure having high sensitivity that reacts to a load from 30 gf and high durability against a repeated load is realized. Furthermore, by using a sensor element having such a structure, the movement distance (stroke) of the pen core necessary for writing pressure detection can be reduced. Furthermore, since the impact at the tip of the pen is absorbed, the user's writing quality can be improved.

  Further, in the present embodiment, as a pen core holding member in a pen used for a pen-type input device and a user to write characters, a mechanism for holding a pen core such as a replaceable ballpoint pen (pen core holding mechanism) is provided. . The pen core holding mechanism constitutes a spring mechanism for holding both ends as described above, and has a vent hole for ballpoint pen ink. Accordingly, it is possible to provide a pen core holding mechanism that makes it difficult for the pen core holding force to decrease, that is, the pen core holding force decreases due to permanent distortion.

It is the perspective view which showed the whole structure of the pen-type input device to which this Embodiment is applied. It is the figure which showed the example in the case of using a pen main body on an indoor desk etc. It is a fragmentary sectional view for demonstrating the structure of a pen main body. It is a perspective view for demonstrating the structure of the flame | frame holding a pen core. It is the figure which showed the structure of the pen pressure sensor part to which this Embodiment is applied. It is a figure for demonstrating the shape of the FPC electrode which comprises the sensor element of a pen pressure sensor part. It is the figure which showed the cross section of the sensor element of a writing pressure sensor part. It is the perspective view which showed the structure of the holding member. It is sectional drawing which cut | disconnected the holding member shown in FIG. 8 to the vertical direction. It is sectional drawing which cut | disconnected the holding member shown in FIG. 8 in the horizontal direction.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Pen main body, 11 ... Exterior case, 12 ... Pen core, 12a ... Pen tip, 100 ... Pen pressure sensor part, 110 ... Sensor element, 111 ... FPC electrode, 113 ... Electrode pattern, 120 ... Pressure-sensitive conductive elastomer, DESCRIPTION OF SYMBOLS 121 ... Protective cover, 130 ... Holding member (pressurization element), 131 ... Opening part side (one end), 131a ... Opening part, 132 ... Pressurization part side (other end), 132a ... Pressurization part, 133 ... Elastic mechanism Part, 133a: pen core holding part, 134 ... innermost part (butting part), 136 ... slit, 137 ... side hole, 138 ... vent hole

Claims (10)

The body,
A pen core attached to the main body;
A sensor element for detecting a user's writing pressure obtained from the pen core;
A holding member for holding the pen core and pressurizing the sensor element ;
Including
The holding member includes an opening for receiving the pen core, a pressure unit provided toward the sensor element, and a pen core holder that is provided between the opening and the pressure unit and holds the pen core. have a part and,
The pen-type input device according to claim 1 , wherein the pen core holding portion of the holding member forms a spring mechanism that is held at both ends of the opening and the pressure portion of the holding member . The holding member is made of resin, and the pen core holding portion of the holding member uses the elastic deformation of the resin using a slit provided between the opening and the pressure unit, and the pen core The pen-type input device according to claim 1, wherein the pen-type input device is held. The body,
A pen core attached to the main body;
A sensor element for detecting a user's writing pressure obtained from the pen core;
A holding member for holding the pen core and pressurizing the sensor element ;
Including
The holding member includes an opening for receiving the pen core, a pressure unit provided toward the sensor element, and a pen core holder that is provided between the opening and the pressure unit and holds the pen core. And
The holding member is made of resin, and the pen core holding portion of the holding member uses the elastic deformation of the resin using a slit provided between the opening and the pressure unit, and the pen core A pen-type input device characterized in that the pen-type input device is held. The sensor element includes a pressure-sensitive conductive elastomer as an elastic member,
The pen-type input device according to any one of claims 1 to 3 , wherein the pressurizing portion of the holding member pressurizes the pressure-sensitive conductive elastomer by a writing pressure by a user. Wherein the elastic member of the sensor element is constructed by laminating a protective member for protecting the pressure-sensitive conductive elastomer and the pressure-sensitive conductive elastomer,
The pen-type input device according to claim 4 , wherein the pressurizing portion of the holding member presses the pressure-sensitive conductive elastomer in contact with the protective member. The sensor element has a spiral electrode pattern,
The pressing of the holding member, along with the size is determined according to the shape of the electrode patterns, one of the claim 1-5, characterized in that the pressure surface which forms part of a spherical surface is provided pen-type input device of crab described. The body,
A pen core mounted from the front end direction of the main body;
A holding member that is provided in the main body and holds the attached pen core ;
Including
The holding member is positioned between the one end positioned on the receiving port side of the pen core to be mounted, the other end positioned on the abutting side of the pen core to be received, and the one end and the other end. A pen core holding unit for holding the pen core, the pen core holding unit is to hold the pen core by a spring mechanism supported at both ends of the one end and the other end ,
The pen, wherein a vent hole for discharging ink from the pen core is provided on the other end side of the holding member . The pen core holding part of the holding member has a shape along the outer diameter of the pen core, and the holding member is formed by press-fitting the pen core into the pen core holding part. The pen according to claim 7 , wherein the pen core is held. The pen according to claim 7 or 8, wherein the holding member is made of resin, and the pen core holding portion of the holding member holds the pen core by deformation of the resin. A holding member that is provided inside the pen and holds a pen core inserted from one side,
An opening for receiving the pen core inserted from one side;
An abutting part that abuts the inserted pen core;
A pen core holding part for holding the pen core located between one end located on the opening side and the other end located on the abutting part side;
The pen core holding unit is capable of holding the pen core by a spring mechanism supported at both ends of the one end and the other end ,
The holding member is made of resin, and the pen core holding part holds the pen core by using elastic deformation of resin using a slit provided between the opening and the abutting part. A holding member characterized in that

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