WO2021075257A1 - 電子ペン及び電子ペン用本体部 - Google Patents

電子ペン及び電子ペン用本体部 Download PDF

Info

Publication number
WO2021075257A1
WO2021075257A1 PCT/JP2020/037051 JP2020037051W WO2021075257A1 WO 2021075257 A1 WO2021075257 A1 WO 2021075257A1 JP 2020037051 W JP2020037051 W JP 2020037051W WO 2021075257 A1 WO2021075257 A1 WO 2021075257A1
Authority
WO
WIPO (PCT)
Prior art keywords
electronic pen
main body
pen
housing
electronic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2020/037051
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
信也 青木
善之 橋本
金田　剛典
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wacom Co Ltd
Original Assignee
Wacom Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to CN202511973476.8A priority Critical patent/CN121657879A/zh
Priority to JP2021552301A priority patent/JP7596286B2/ja
Priority to EP20876225.2A priority patent/EP4026703A4/en
Priority to CN202080070309.1A priority patent/CN114556272B/zh
Priority to CN202511976501.8A priority patent/CN121657880A/zh
Application filed by Wacom Co Ltd filed Critical Wacom Co Ltd
Publication of WO2021075257A1 publication Critical patent/WO2021075257A1/ja
Priority to US17/690,633 priority patent/US11874977B2/en
Anticipated expiration legal-status Critical
Priority to US18/529,385 priority patent/US12153745B2/en
Priority to US18/920,514 priority patent/US20250044884A1/en
Priority to JP2024205928A priority patent/JP7757508B2/ja
Priority to JP2025169823A priority patent/JP2025182112A/ja
Ceased legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of two-dimensional [2D] relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
    • G06F3/03545—Pens or stylus
    • G06F3/03546—Pens or stylus using a rotatable ball at the tip as position detecting member
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of two-dimensional [2D] relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
    • G06F3/03545—Pens or stylus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K24/00—Mechanisms for selecting, projecting, retracting or locking writing units
    • B43K24/02—Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions
    • B43K24/08—Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions operated by push-buttons
    • B43K24/084—Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions operated by push-buttons with saw-like or analogous cams
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/038—Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
    • G06F3/0383—Signal control means within the pointing device
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0442—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using active external devices, e.g. active pens, for transmitting changes in electrical potential to be received by the digitiser
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/038—Indexing scheme relating to G06F3/038
    • G06F2203/0384—Wireless input, i.e. hardware and software details of wireless interface arrangements for pointing devices

Definitions

  • the present invention relates to a capacitance type electronic pen and an electronic pen main body that send and receive signals by electric field coupling with a position detection sensor.
  • the position detection sensor detects the position indicated by the electronic pen. So-called active capacitance type electronic pens are being used.
  • This type of active capacitance type electronic pen has a built-in power supply circuit using a primary battery or a secondary battery and a signal transmission circuit, and the core is composed of a conductor to transmit the signal from the signal transmission circuit. It is intended to transmit from the core of the conductor to the position detection sensor by electrostatic coupling (see, for example, Patent Document 1 (Patent No. 5688398)).
  • the electronic pen has come to be used together with a position detection sensor mounted on such a small electronic device, and a finer one is required.
  • electronic pens are regarded as an extension of stationery, and there is a demand to modularize the internal configuration so that they can be handled in the same way as ballpoint pen replacement cores (refills and cartridges).
  • ballpoint pen replacement cores refills and cartridges.
  • the internal components of the electronic pen are modularized and integrated, and the one which is interchangeably configured like a replacement core of a ballpoint pen is referred to as an electronic pen main body.
  • the strength of the electric field coupling between the capacitance type electronic pen and the capacitance type position detection sensor is smaller than the strength of the electromagnetic induction coupling of the electromagnetic induction type electronic pen.
  • the capacitance type position detection sensor ensures that the electronic pen is used. There is a problem that it must be configured so that the indicated position can be detected.
  • An object of the present invention is to provide an electronic pen and an electronic pen main body that can solve the above problems.
  • An electronic pen main body in which at least the pen tip is housed in the tubular housing of the electronic pen so as to project from one opening in the axial direction of the tubular housing.
  • a conductive center electrode whose pen tip is one end in the axial direction, Peripheral electrodes arranged around the center electrode except for the pen tip and insulated from the center electrode, and With When the one end side of the center electrode serving as the pen tip projects outward from the opening of the tubular housing, a part of the peripheral electrode on the pen tip side also projects outward from the opening.
  • a featured electronic pen main body is provided.
  • An electronic pen having a tubular housing having an opening on one end side in the axial direction, which is the pen tip side, and at least one electronic pen main body is housed in the tubular housing.
  • the electronic pen body is A conductive center electrode with a pen tip on one end in the axial direction, Peripheral electrodes arranged around the center electrode except for the pen tip and insulated from the center electrode, and With When the one end side of the center electrode serving as the pen tip projects outward from the opening of the tubular housing, a part of the peripheral electrode on the pen tip side also projects outward from the opening.
  • a characteristic electronic pen Provide a characteristic electronic pen.
  • the pen tip which is one end side of the center electrode, protrudes from the opening of the electronic pen housing, and a part of the peripheral electrode on the pen tip side is also the electronic pen housing. It protrudes from the opening. Therefore, the distance between the center electrode and the peripheral electrode of the electronic pen and the capacitance type position detection sensor is shortened, and the electric field coupling between the two can be satisfactorily secured.
  • the position indicated by the electronic pen can be reliably detected by the capacitance type position detection sensor.
  • the position detection sensor receives the signal from the position detection sensor by the peripheral electrodes of the electronic pen body, and controls the transmission of the signal from the center electrode of the electronic pen body based on the received signal.
  • the signal from the electronic pen main body can be reliably detected.
  • the peripheral electrode is grounded and the peripheral electrode is used as the shield electrode, so that the signal can be transmitted from the tip end portion (pen tip) of the center electrode without waste.
  • the peripheral electrode can be used for detecting the tilt angle of the electronic pen.
  • the electronic pen of the first embodiment has a cartridge type configuration, and has a configuration in which the main body of the electronic pen is detachably housed in a tubular housing of the electronic pen.
  • the position of the receiving unit for receiving the signal from the position detection sensor is important.
  • the signal transmitted from the position detection sensor is due to the electric field that can be received by the capacitance coupling, and the reachable distance thereof is very short. Therefore, the receiving unit of the bidirectional communication type electronic pen should be arranged at a position close to the pen tip so that the signal from the position detection sensor can be received with a high intensity.
  • the configuration of the electronic pen main body is considered to be optimal for the above-mentioned bidirectional communication type electronic pen. That is, in the embodiment described below, the electronic pen main body is provided with a signal receiving unit from the position detection sensor, and this receiving unit is electrically insulated from the center electrode made of a conductive material. This is composed of a peripheral electrode composed of a tubular conductor provided so as to surround the center electrode so as to cover the vicinity of the tip portion of the center electrode.
  • a position detection device detects the tilt angle of the electronic pen with respect to the position detection sensor surface (the angle formed by the axial direction of the electronic pen and the position detection sensor surface, hereinafter abbreviated as the tilt angle of the electronic pen).
  • the detected tilt angle be reflected in the thickness of the indicated locus (writing mark) of the electronic pen.
  • the electronic pen main body of the electronic pen of this embodiment is configured so that the peripheral electrodes can be used for detecting the tilt angle of the electronic pen.
  • the peripheral electrode is also configured to act as a shield electrode with respect to the center electrode that transmits a position detection signal.
  • FIG. 1 is a diagram showing a configuration example of a first embodiment of the electronic pen according to the present invention.
  • the electronic pen main body 3 is housed in the hollow portion 2a of the tubular housing 2 (hereinafter referred to as the pen housing 2), and the knock cam mechanism 4
  • the pen tip side of the electronic pen main body 3 has a knock type configuration in which the pen tip side is taken in and out from the opening 2b side on one end side in the longitudinal direction of the pen housing 2.
  • FIG. 1 (A) shows a state in which the entire electronic pen main body 3 is housed in the hollow portion 2a of the pen housing 2, and FIG. 1 (B) shows the electronic pen main body 3 by the knock cam mechanism 4.
  • the pen tip side of the pen housing 2 protrudes from the opening 2b of the pen housing 2.
  • the pen housing 2 of the electronic pen 1 is made of a transparent synthetic resin, and the inside thereof can be seen through.
  • the electronic pen 1 of this embodiment is configured to be compatible with a commercially available knock-type ballpoint pen.
  • the pen housing 2 and the knock cam mechanism 4 provided in the pen housing 2 have the same configuration as a well-known commercially available knock-type ballpoint pen, and also have the same dimensional relationship.
  • the knock cam mechanism unit 4 has a well-known configuration in which a cam main body 41, a knock rod 42, and a rotor 43 are combined.
  • the cam body 41 is formed on the inner wall surface of the tubular pen housing 2.
  • the knock rod 42 is configured such that the end portion 42a protrudes from the opening 2c on the side opposite to the pen tip side of the pen housing 2 so that the knock operation of the user can be received.
  • the rotor 43 includes a fitting portion 43a into which an end portion of the electronic pen main body portion 3 opposite to the pen tip side is fitted.
  • this fitting portion 43a is different from the fitting portion of the housing of a knock-type ballpoint pen of a normal stationery in that a configuration of electrical connection with the electronic pen main body portion 3 is added to the fitting portion 43a. .. That is, as will be described later, the electronic pen main body 3 includes a signal transmission circuit that generates a signal transmitted to the position detection sensor through the center electrode or the peripheral electrode, and supplies a power supply voltage to the signal transmission circuit. Need to supply.
  • a signal transmission circuit and a power storage element that supplies power to the signal transmission circuit are provided inside the electronic pen main body 3. Then, the power storage element needs to be charged from the outside of the electronic pen main body 3. Therefore, a terminal conductor (electrode) connected to the power storage element is provided at the end of the electronic pen main body 3 of this embodiment to be fitted to the fitting portion 43a, and the fitting portion 43a is provided with a terminal conductor (electrode). Is formed with a conductor connected to a terminal conductor connected to the power storage element.
  • the configuration of the coupling portion with the electronic pen main body portion 3 is the same as the configuration in which the replacement core of the ballpoint pen is coupled and mounted only by adding the electrical configuration.
  • a configuration example of the end portion fitted to the fitting portion 43a of the electronic pen main body portion 3 will be described later together with a configuration example of the fitting portion 43a.
  • the knock cam mechanism portion 4 causes the electronic pen main body portion 3 to be replaced with the pen housing 2 by the knock cam mechanism portion 4. Inside, it is locked to the state shown in FIG. 1B, and the pen tip side of the electronic pen main body 3 protrudes from the opening 2b of the pen housing 2. Then, when the end portion 42a of the knock rod 42 is pressed again from the state of FIG. 1 (B), the locked state is released by the knock cam mechanism portion 4, and the pen of the electronic pen main body portion 3 is released by the return spring 5. The position in the housing 2 returns to the state shown in FIG. 1 (A). Since the detailed configuration and operation of the knock cam mechanism unit 4 are well known, the description thereof will be omitted here.
  • FIG. 2 is a diagram showing a configuration example of the electronic pen main body 3 in comparison with a replacement core of a commercially available knock-type ballpoint pen. That is, FIG. 2 (A) shows a replacement core 6 of a commercially available knock-type ballpoint pen, and FIG. 2 (B) shows a configuration example of the electronic pen main body 3 of this embodiment. Then, as will be described later, the electronic pen main body 3 is configured to be compatible with the replacement core 6 of the knock-type ballpoint pen in terms of size.
  • FIG. 3A and 3B are views showing a configuration example of the pen tip side of the electronic pen main body 3 of this embodiment
  • FIG. 3A is a view showing the appearance thereof
  • FIG. 3B is a vertical sectional view thereof. is there.
  • FIG. 4 is an exploded perspective view for explaining a configuration example of the pen tip side of the electronic pen main body 3 of this embodiment shown in FIG.
  • the replacement core 6 of a commercially available knock-type ballpoint pen has a pen tip portion 61 in which a ball is arranged at the tip and a tubular ink storage portion 62 having a constant outer diameter.
  • a tubular ink storage portion 62 having a constant outer diameter.
  • the pen tip portion 61 has a tubular shape and its tip side is formed in a tapered shape, and the maximum outer diameter is R1 which is smaller than the diameter R0 of the opening 2b of the pen housing 2.
  • the diameter R0 of the opening 2b of the pen housing 2 is R1 ⁇ R0 ⁇ R2.
  • the tubular coupling member 32 is located on the pen tip side of the main body tubular portion 31.
  • a conductive member for example, a peripheral electrode 33 made of a conductive metal is coupled to the electronic pen main body 3 to form a housing 30 (hereinafter, referred to as a main body housing 30).
  • the main body tubular portion 31 is configured by connecting the resin pipe portion 31b to the rear end side of the metal pipe portion 31a opposite to the pen tip side, as shown in FIG. 2 (B). .. Then, in this example, in the main body tubular portion 31, the peripheral electrode 33 is coupled to the pen tip side of the metal pipe portion 31a via the tubular coupling member 32.
  • the tubular coupling member 32 also serves as an insulator between the metal pipe portion 31a and the peripheral electrode 33. Then, the end portion of the electronic pen main body portion 3 on the resin pipe portion 31b side becomes a fitting portion with the fitting portion 43a in the pen housing 2.
  • the peripheral electrode 33 is formed in a cylindrical shape portion 33a having a constant outer diameter R2 and a tapered shape so as to gradually taper toward the pen tip side, as shown in FIGS. 2 and 3. It has a shape having a tapered portion 33b.
  • the metal pipe portion 31a of the main body tubular portion 31 has a cylindrical shape having an outer diameter equal to the outer diameter R2 of the cylindrical shape portion 33a of the peripheral electrode 33.
  • the tubular coupling member 32 is made of an insulating material, resin in this example, and is a tubular body as shown in FIG. 3 (B) at a position in the middle of the outer peripheral surface in the axial direction. Is formed with a ring-shaped flange portion 32F protruding from the outer peripheral side surface in a direction orthogonal to the axial direction.
  • the ring-shaped flange portion 32F has a predetermined width W (see FIG. 3) in the axial direction, and its end face is a main body tubular portion 31 and its periphery as shown in FIGS. 3 (A) and 3 (B). It is configured to form a part of the main body housing 30 so as to be flush with the electrode 33 without forming a step. That is, the diameter of the outer peripheral portion of the ring-shaped flange portion 32F is selected to be equal to the outer diameter of the metal pipe portion 31a of the peripheral electrode 33 and the main body tubular portion 31.
  • the pen tip side of the tubular coupling member 32 which is one side in the axial direction from the ring-shaped flange portion 32F, has a first fitting tubular shape that is fitted with the cylindrical portion 33a of the peripheral electrode 33. It is referred to as a part 32a.
  • the outer diameter of the first fitting tubular portion 32a of the tubular coupling member 32 is equal to or slightly smaller than the inner diameter of the cylindrical portion 33a of the peripheral electrode 33, and the cylindrical portion 33a of the peripheral electrode 33 is , It is configured to be press-fitted and coupled to the first fitting tubular portion 32a of the tubular coupling member 32 up to the ring-shaped flange portion 32F.
  • the rear end side of the tubular coupling member 32 in the axial direction from the ring-shaped flange portion 32F is a second fitting tubular portion 32b that is fitted with the metal pipe portion 31a of the main body tubular portion 31.
  • the outer diameter of the second fitting tubular portion 32b of the tubular coupling member 32 is equal to or slightly smaller than the inner diameter of the metal pipe portion 31a of the main body tubular portion 31, and the metal of the main body tubular portion 31.
  • the pipe portion 31a is configured to be press-fitted and coupled to the second fitting tubular portion 32b of the tubular coupling member 32 up to the ring-shaped flange portion 32F.
  • FIGS. 2 (B) and 1 (A) are shown.
  • (B) one tubular body housing 30 is formed.
  • the outer peripheral surface of the metal pipe portion 31a of the main body tubular portion 31, the outer peripheral surface of the peripheral electrode 33, and the end surface of the ring-shaped flange portion 32F of the tubular coupling member 32 are flush with each other. It has become.
  • the metal pipe portion 31a of the main body tubular portion 31 made of a conductive material and the peripheral electrode 33 are electrically separated (insulated) from each other without contacting each other due to the presence of the ring-shaped flange portion 32F of the tubular coupling member 32. ) Is in the state of being.
  • a hollow portion 30a exists inside the main body housing 30.
  • a front cap 34 made of an insulating material is attached to the pen tip side of the peripheral electrode 33 of the main body housing 30.
  • the front cap 34 is provided with an opening 34a (see FIG. 3B) having a diameter larger than the diameter of the center electrode 35 on the tip end side thereof, and the opening 34a communicates with the hollow portion 30a of the main body housing 30. ing.
  • the center electrode 35 constitutes the core body of the electronic pen main body 3 of this embodiment, and is made of a conductive member, in this example, a conductive metal. Then, as shown in FIG. 3B, the center electrode 35 is inserted into the main body housing 30 through the opening 34a of the front cap 34, and the end portion on the side opposite to the pen tip side is the core described later. It is detachably attached to the body holding member 7.
  • the core body 35 made of a conductive material and the peripheral electrode 33 are electrically separated (insulated) by the front cap 34, which is an insulating material.
  • the peripheral electrode 33 is larger than the tip 35a which is the pen tip of the center electrode 35, as shown in FIG. 3 (B). It is arranged so as to surround the rear end side.
  • the center electrode 35 will be referred to as a core body 35.
  • the size of the electronic pen body 3 on the pen tip side is substantially equal to the size of the ballpoint pen replacement core 6 on the pen tip side. It is configured to be. That is, as shown in FIG. 2B, the outer diameters of the main body tubular portion 31 of the main body housing 30 and the cylindrical portion 33a of the peripheral electrode 33 are the ink storage portions 62 of the replacement core 6 of the commercially available knock-type ballpoint pen. And the outer diameter R2 of the coupling portion 63 is equal to.
  • the tapered portion 33b on the pen tip side of the peripheral electrode 33 of the main body housing 30 has a diameter that gradually decreases as it approaches the pen tip side, and in this embodiment, as shown in FIG. 2 (B).
  • the pen tip side from the middle position in the axial direction of the tapered portion 33b is configured to have a diameter R0 or less of the opening 2b on the pen tip side of the pen housing 2.
  • the outer diameter of the tapered portion 33b of the peripheral electrode 33 is increased from the tip end portion of the core body 35.
  • the length to the position where the diameter R1 is reached is configured to be substantially equal to the length L1 in the axial direction of the pen tip portion 61 of the replacement core 6 of a commercially available knock-type ballpoint pen.
  • the length (total length) of the electronic pen main body 3 with the core body 35 attached is selected to be equal to the total length L2 of the replacement core 6 of the ballpoint pen. There is.
  • the electronic pen main body portion 3 having the above configuration can be housed in the pen housing 2 by fitting the main body tubular portion 31 into the fitting portion 43a of the rotor 43 of the knock cam mechanism portion 4. it can. Then, in the electronic pen 1 of this embodiment, the user presses the end portion 42a of the knock rod 42 when used together with the position detecting device. Then, in the electronic pen 1, as shown in FIG. 1 (B), the tip portion 35a of the core body 35, a part of the front cap 34, and a part of the tapered portion 33b of the peripheral electrode 33 on the pen tip side. However, the pen housing 2 is in a state of protruding outward from the opening 2b.
  • the end portion 42a of the knock rod 42 is pressed again so that the entire electronic pen main body portion 3 is inside the hollow portion 2a of the pen housing 2 as shown in FIG. 1 (A). It can be put into a state of being accommodated in. At this time, the entire electronic pen main body 3 is housed in the hollow portion 2a of the pen housing 2, and the tip 35a of the core 35 of the electronic pen main body 3 is protected by the pen housing 2. Become.
  • the core body holding member 7, the pen pressure detection unit 8, and the signal transmission circuit are mounted in the hollow portion 30a of the main body housing 30.
  • the substrate 9 and the capacitor 10 as an example of the power storage element for supplying the power supply voltage are arranged and arranged in order from the pen tip side in the axial direction.
  • the substrate holder 300 on which the printed circuit board 9 is mounted is housed in the hollow portion 30a of the main body housing 30. There is.
  • the substrate holder 300 is made of an insulating resin, and in order to store and hold the pen pressure detecting portion 8 on the side opposite to the substrate mounting base portion 301 side in the longitudinal direction which is the axial direction of the electronic pen main body portion 3. It has a pen pressure detection unit holding unit 302. As shown in FIG. 3B, when the substrate holder 300 is housed in the hollow portion of the main body housing 30, the pen pressure detecting portion holding portion is in the longitudinal direction which is the axial direction of the electronic pen main body portion 3.
  • the 302 and the board mounting base 301 are continuous.
  • the pen pressure detection unit holding unit 302 has a cylindrical shape having a hollow portion inside the hollow portion for accommodating a plurality of parts of the pen pressure detection unit 8.
  • the substrate mounting base 301 has a boat-like shape on which the printed circuit board 9 is placed and held, and has a shape such that the tubular body is cut in substantially half in the axial direction.
  • the board holder 300 is housed in the main body housing 30 so that the pen pressure detection unit holding portion 302 is on the pen tip side. Then, a core body holding member 7 that fits with the core body 35 and holds the core body 35 is coupled to the pen pressure detection unit 8 held by the pen pressure detection unit holding unit 302, and the core body The pressure (pen pressure) applied to the pen 35 is configured to be transmitted to the pen pressure detection unit 8.
  • the outer diameter of the pen pressure detection unit holding portion 302 of the substrate holder 300 is selected to be equal to or slightly smaller than the outer diameter of the second fitting tubular portion 32b of the tubular coupling member 32. Then, as shown in FIG. 3B, a part of the pen pressure detecting portion holding portion 302 of the substrate holder 300 is fitted with a part of the second fitting tubular portion 32b of the tubular coupling member 32. As a result, the pen pressure detecting portion holding portion 302 of the substrate holder 300 and the second fitting tubular portion 32b of the tubular connecting member 32 are coupled to each other.
  • the pen pressure detection unit holding portion 302 is fitted and coupled with the second fitting tubular portion 32b of the tubular coupling member 32 in the axial direction. As a result, the position is regulated so as not to move in the axial direction in the main body housing 30.
  • both ends of the capacitor 10 of the substrate mounting base 301 of the substrate holder 300 which is arranged on the side opposite to the pressure detecting portion holding portion 302, and the power supply line and ground of the printed circuit board 9.
  • the copper foil pattern of the line is electrically connected.
  • the voltage of the capacitor 10 is supplied as a power supply voltage to the circuit formed on the printed circuit board 9.
  • the metal pipe portion 31a of the main body tubular portion 31 made of a conductive material is electrically connected to the copper foil pattern of the ground line of the printed circuit board 9.
  • a signal transmission circuit that generates a signal transmitted from the core body 35 and the peripheral electrodes 33 and transmission of a signal from the signal transmission circuit to the core body 35 and the peripheral electrodes 33 are controlled.
  • a circuit unit including an IC (Integrate Circuit) 100 (see FIGS. 3A and 3B) and peripheral circuit components thereof constituting the control circuit is provided.
  • the peripheral circuit unit includes a charging circuit for the capacitor 10. The charging circuit of the capacitor 10 may be provided outside the electronic pen 1.
  • the core body holding member 7 for fitting and holding the core body 35 includes a conductive elastic member 71, a core body holder 72, a coil spring 73, and a conductor terminal member 74. It is composed of and.
  • the core body 35 is fitted into the core body holder 72 made of a conductive material via the conductive elastic member 71 as shown in FIG. 3 (B).
  • the bond is held.
  • the core body holding member 7 also serves as a pen pressure transmitting member applied to the core body 35 with respect to the pen pressure detecting unit 8.
  • the core body holder 72 is fitted to the holding member 83 of the writing pressure detecting unit 8 held by the writing pressure detecting unit holding unit 302, so that the pressure (pen pressure) applied to the core body 35 is applied to the writing brush. It is configured to be transmitted to the pressure detection unit 8.
  • the core body holder 72 is provided by the coil spring 73 as an example of an elastic member made of a conductive material such as a conductive metal, which is provided between the core body holder 72 and the substrate holder 300. It is configured to always be urged toward the core body 35 side.
  • the coil spring 73, together with the conductor terminal member 74, constitutes an electrical connection member for transmitting a signal from the IC 100 arranged on the printed circuit board 9 to the core body 35.
  • FIG. 4A is an exploded perspective view of a core body 35, a conductive elastic member 71, a core body holder 72, a coil spring 73, a conductor terminal member 74, and a pressure detecting portion holding portion 302 of the substrate holder 300. ..
  • the conductive elastic member 71 is made of, for example, conductive rubber, and is formed in a cylindrical shape having a through hole 71a into which an end portion of the core body 35 opposite to the tip end portion 35a is fitted.
  • the core body 35 side of the conductive elastic member 71 has a smaller outer diameter than the other parts to form a thin-walled portion, and a slit 712 is formed to form a grip portion 711 that facilitates gripping the core body 35. Has been done.
  • the conductive elastic member 71 is made of, for example, conductive rubber, and is formed in a cylindrical shape having a through hole 71a into which an end portion of the core body 35 opposite to the tip end portion 35a is fitted.
  • the core body 35 side of the conductive elastic member 71 has a smaller outer diameter than the other parts to form a thin-walled portion, and a slit 712 is formed to form a grip portion 711 that facilitates gripping the core body 35. Has been done.
  • the core body 35 is gripped by the arc-shaped portion of the grip portion 711, which is two thin-walled portions on which the slit portion 712 is formed. Therefore, the core body 35 can be easily inserted and fitted to the grip portion 711 of the conductive elastic member 71, and the core body 35 can be easily pulled out from the conductive elastic member 71 by pulling with a predetermined force. it can.
  • the core holder 72 is made of a conductive material, for example, SUS (Steel Special Use Stainless), and has a storage fitting portion 721 having a concave hole 721a for accommodating and fitting the conductive elastic member 71, and a pen pressure detecting portion 8 to be described later.
  • a rod-shaped portion 722 that fits into the holding member 83 is integrally formed.
  • the rod-shaped portion 722 of the core body holder 72 is subjected to the writing pressure of the substrate holder 300. It is fitted to the holding member 83 of the pen pressure detection unit 8 held by the detection unit holding unit 302.
  • the transmission signal generated by the circuit configured on the printed circuit board 9 must be supplied to the core body 35. ..
  • the holding member 83 of the pen pressure detecting unit 8 housed in the substrate holder 300 and the pen pressure detecting unit holding unit 302 is made of a resin which is an insulating material, the core body holder 72 and the holding member 83 There is no electrical connection with.
  • the coil spring 73 made of a conductive material provided between the core holder 72 and the pressure detecting portion holding portion 302 of the substrate holder 300, and the pressure of the substrate holder 300.
  • An electrical connection member is formed by the conductor terminal member 74 provided in the detection unit holding unit 302, and the electrical connection member makes an electrical connection for supplying a signal from the signal transmission circuit of the printed circuit board 9. It has been realized.
  • the pen pressure detecting portion holding portion 302 of the substrate holder 300 covers the opening 302a side into which the rod-shaped portion 722 of the core body holder 72 is inserted, as shown in FIG. 4 (A).
  • the conductor terminal member 74 covers the opening 302a side of the pen pressure detecting portion holding portion 302 of the substrate holder 300, and the rod-shaped portion 722 of the core body holder 72.
  • an extension portion 742 that extends to the portion of the substrate mounting base portion 301 is provided so as to straddle the portion of the pen pressure detection portion holding portion 302 of the substrate holder 300. Then, in a state where the conductor terminal member 74 is mounted on the pen pressure detecting portion holding portion 302 of the substrate holder 300, as shown in FIG. 3B, the terminal at the tip of the extending portion 742 extending from the conductor terminal member 74. The portion 742a comes into contact with the conductor on the back surface side of the printed circuit board 9 mounted on the substrate mounting base portion 301 of the substrate holder 300, and is soldered, for example. As a result, the conductor terminal member 74 and the signal transmission circuit provided on the printed circuit board 9 are electrically connected.
  • the conductor terminal member 74 is contained in the hollow portion of the pen pressure detection portion holding portion 302 of the substrate holder 300 in a state where the rod-shaped portion 722 of the core body holder 72 into which the conductive elastic member 71 is fitted is interposed with the coil spring 73. It is inserted through the through hole 741a of the contact plate portion 741 of the above, and is fitted into the pen pressure detecting portion holding portion 302.
  • the inner diameter of the coil spring 73 is larger than the outer diameter of the rod-shaped portion 722 of the core holder 72.
  • the coil spring 73 elastically contacts the core holder 72 and also elastically contacts the contact plate portion 741 of the conductor terminal member 74. Since the coil spring 73 is made of a conductive material and the conductive elastic member 71 and the core holder 72 are conductive, the coil spring 73 is fitted into the core holder 72 via the coil spring 73 and the conductor terminal member 74. The combined conductive elastic member 71 is electrically connected to the circuit portion of the printed circuit board 9.
  • the core body 35 is inserted and fitted into the through hole 71a of the conductive elastic member 71 fitted in the core body holder 72 housed in the main body housing 30 as described above. Then, the core body 35 is held by the core body holder 72 via the conductive elastic member 71. In this state, the core body 35 is electrically connected to the signal transmission circuit of the printed circuit board 9, and the signal from the signal transmission circuit is supplied to the core body 35.
  • the pen pressure detection unit 8 is housed in the pen pressure detection unit holding unit 302 and is configured as shown in FIG. 3 (B) to form a pen pressure detection module. Then, by connecting the core body 35 to the pen pressure detection module via the core body holder 72, the pen pressure applied to the tip portion 35a of the core body 35 is the pen pressure detection of the pen pressure detection module. It is detected in part 8.
  • a part of the parts of the writing pressure detecting unit 8 constituting the module has the core body 35 and the core body according to the writing pressure applied to the tip portion 35a of the core body 35. The writing pressure is detected by moving in the axial direction together with the holder 72.
  • the pen pressure detection unit 8 uses a capacitance variable capacitor whose capacitance changes according to the pen pressure applied to the core 35, and is a dielectric as shown in FIG. 3 (B). It is composed of a plurality of parts including 81, a terminal member 82, a holding member 83, a conductive member 84, and an elastic member 85.
  • the core body 35 is fitted to the conductive elastic member 71 of the core body holder 72. It is press-fitted into the through hole 71a. As a result, as described above, the core body 35 is firmly held by the conductive elastic member 71 with respect to the core body holder 72. The core body 35 can be pulled out in the direction toward the tip portion 35a from the state of being fitted and held in the core body holder 72, and can be replaced as described above.
  • the core body 35 When a pressure is applied to the tip portion 35a of the core body 35 in the electronic pen main body portion 3, the core body 35 is displaced toward the rear end side in the axial direction according to the pressure, and the displacement causes the brush.
  • the holding member 83 in the pressure detecting unit holding portion 302 is displaced toward the dielectric 81 side against the elastic eccentric force of the elastic member 85.
  • the conductive member 84 fitted to the holding member 83 is displaced toward the dielectric 81, the distance between the conductive member 84 and the dielectric 81, and the distance between the conductive member 84 and the dielectric 81.
  • the contact area changes according to the pressure applied to the core body 35.
  • the capacitance of the variable capacitance capacitor formed between the terminal member 82 forming the first electrode and the conductive member 84 forming the second electrode becomes the pressure applied to the core body 35. It changes accordingly.
  • the change in the capacitance of this variable capacitance capacitor is detected by the IC 100 provided on the printed circuit board 9, and the writing pressure is detected.
  • the pen pressure detection unit 8 is not limited to the one having the above-mentioned configuration, and for example, the capacitance variable capacitor is composed of a semiconductor chip composed of a MEMS (Micro Electro Mechanical Systems) element (for example, Patent Document (Japanese Patent Laid-Open No. (See 2013-161307)) may be used.
  • MEMS Micro Electro Mechanical Systems
  • a concave groove (not shown) is formed on the outer peripheral surface of the tubular connecting member 32 in a direction along the axial direction of the tubular connecting member 32 from the first fitting tubular portion 32a to a ring-shaped collar. It is formed over the second fitting tubular portion 32b through the lower portion of the portion 32F.
  • a concave groove (not shown) is formed on the peripheral side surface of the pen pressure detecting portion holding portion 302 of the substrate holder 300 so as to be continuous with the concave groove of the second fitting tubular portion 32b.
  • a conductor material in this example, a connection terminal conductor 11 made of a conductor metal is disposed in the continuous groove.
  • at least a part of the end portion 11a of the connection terminal conductor 11 arranged in the concave groove on the side of the first fitting tubular portion 32a of the tubular coupling member 32 is at least a part.
  • It is arranged so as to slightly bulge from the outer peripheral surface of the first fitting tubular portion 32a.
  • the depth of the concave groove of the end portion 11a is configured to be such that when the end portion 11a is pressed from above, the end portion 11a can be elastically pressed downward.
  • the peripheral electrode 33 is fitted to the first fitting tubular portion 32a of the tubular coupling member 32, the end portion 11a of the connection terminal conductor 11 and the inner wall of the peripheral electrode 33 are reliably contacted. Then, the peripheral electrode 33 and the connection terminal conductor 11 are electrically connected to each other. Then, the end portion 11b of the connection terminal conductor 11 extending toward the printed circuit board 9 side is electrically connected to the back surface 9b side of the printed circuit board 9 as shown in FIG. 3 (B). Although not shown, the end portion 11b of the connection terminal conductor 11 is electrically connected to the circuit portion on the front surface side of the printed circuit board 9 via a through hole.
  • the depth of the concave groove in which the connection terminal conductor 11 is arranged is such that when the metal pipe portion 31a of the main body tubular portion 31 is fitted to the second fitting tubular portion 32b, the connection terminal conductor 11 is arranged.
  • the depth is such that the metal pipe portion 31a does not come into contact with the metal pipe portion 31a.
  • an insulator may be interposed between the connection terminal conductor 11 and the metal pipe portion 31a.
  • the side of the main body tubular portion 31 of the main body housing 30 that is fitted with the fitting portion 43a of the rotor 43 of the knock cam mechanism portion 4 of the pen housing 2 of the electronic pen 1 is the resin pipe portion 31b.
  • the resin pipe portion 31b is provided with a pair of terminal conductors connected to both ends of the capacitor 10.
  • a pair of conductors are formed in the fitting portion 43a of the rotor 43 of the knock cam mechanism portion 4 of the pen housing 2 of the electronic pen 1, and the pair of conductors is the same as that of the pen housing 2.
  • it is electrically connected to the charging electrodes 2d and 2e provided on the outer peripheral side surface portion on the side opposite to the pen tip side.
  • FIG. 2C is for explaining the configuration of the joint portion between the resin pipe portion 31b of the main body tubular portion 31 of the electronic pen main body 3 and the fitting portion 43a of the main body tubular portion 31 of the main body housing 30. It is an enlarged sectional view of.
  • the fitting portion 43a includes a columnar recess 431 into which the resin pipe portion 31b is fitted, and a hollow portion of the resin pipe portion 31b is provided in the center of the columnar recess 431.
  • a central rod-shaped portion 432 to be inserted into is provided.
  • the diameter of the columnar recess 431 of the fitting portion 43a is slightly larger than the outer diameter of the resin pipe portion 31b, and when the resin pipe portion 31b is fitted to the fitting portion 43a, the resin pipe portion The size is such that the outer peripheral side surface of 31b and the inner wall surface of the columnar recess of the fitting portion 43a come into contact with each other.
  • the inner peripheral side surface of the resin pipe portion 31b and the outer peripheral side surface of the central rod-shaped portion 432 of the columnar recess 431 of the fitting portion 43a come into contact with each other. It is configured with such dimensions.
  • the outer peripheral side surface of the resin pipe portion 31b of the main body tubular portion 31 is electrically connected to one electrode terminal 10a of the capacitor 10 housed in the main body tubular portion 31.
  • the terminal conductor 12 to be formed is adherently formed.
  • a terminal conductor 13 electrically connected to the other electrode terminal 10b of the capacitor 10 is adhered to the inner wall surface of the resin pipe portion 31b of the main body tubular portion 31.
  • the terminal conductor 12 and the terminal conductor 13 are electrically disconnected from each other.
  • a conductor 14 connected to the charging electrode 2d formed in the pen housing 2 is formed on the inner wall surface of the columnar recess 431 of the fitting portion 43a. Further, a conductor 15 connected to the charging electrode 2d formed in the pen housing 2 is formed on the outer peripheral side of the central rod-shaped portion 432 of the cylindrical recess 431 of the fitting portion 43a. The conductor 14 and the conductor 15 are electrically disconnected from each other.
  • the terminal conductor 12 and the terminal conductor 13 are formed on the entire circumference of the outer peripheral side surface and the entire circumference of the inner wall surface in this example.
  • the conductor 14 and the conductor 15 of the fitting portion 43a are also formed on the entire circumference of the inner wall surface of the columnar recess 431 and the entire circumference of the outer peripheral side surface of the central rod-shaped portion 432.
  • the terminal conductor 12 and the terminal conductor 13 of the electronic pen main body 3 are electrically connected to the conductors 14 and 15 of the fitting portion 43a. It is not essential that the conductors 12, 13, 14 and 15 are formed over the entire circumference in the circumferential direction, and no matter what rotation angle position the conductors 12, 13, 14 and 15 are fitted to each other, the electronic pen main body 3 If the terminal conductor 12 and the terminal conductor 13 are electrically connected to the conductors 14 and 15 of the fitting portion 43a, there may be a missing portion of the conductor in a part in the circumferential direction.
  • FIG. 5 An example of the electrical configuration of the electronic pen main body 3 of this embodiment is shown in FIG.
  • the control circuit 101 is configured by the IC 100 mounted on the printed circuit board 9.
  • the signal transmission circuit 102 and the signal reception circuit 103 are connected to the control circuit 101, and the variable capacitor 8C composed of the pen pressure detection unit 8 is connected to the control circuit 101.
  • a resistor 8R is connected in parallel to the variable capacitor 8C.
  • the signal output end of the signal transmission circuit 102 is connected to the core body 35 through the switch circuit 104.
  • the conductor terminal member 74, the core holder 72, and the conductive elastic member 71 are interposed between the core 35 and the switch circuit 104.
  • the signal output end of the signal transmission circuit 102 is connected to the terminal S of the changeover switch circuit 105.
  • the movable terminal M of the changeover switch circuit 105 is connected to the peripheral electrode 33.
  • the connection terminal conductor 11 is interposed between the peripheral electrode 33 and the changeover switch circuit 105.
  • the terminal R of the changeover switch circuit 105 is connected to the input end of the signal receiving circuit 103. Further, the terminal G of the changeover switch circuit 105 is connected to the ground electrode (ground electrode).
  • control circuit 101 supplies the switch circuit 104 with the control signal SW1 that controls the switch circuit 104 on and off. Further, the control circuit 101 supplies the changeover control signal SW2 to the changeover switch circuit 105 to switch whether the movable terminal M is connected to the terminal S, the terminal R, or the terminal G.
  • the voltage of the capacitor 10 is supplied as the power supply voltage to each of the control circuit 101, the signal transmission circuit 102, the signal reception circuit 103, the switch circuit 104, and the changeover switch circuit 105.
  • the signal receiving circuit 103 receives the signal received by the peripheral electrode 33 via the capacitance coupling (electrical coupling) with the position detecting sensor of the position detecting device, and demodulates or the like according to the received signal. The processing is performed, and the signal of the processing result is sent to the control circuit 101.
  • the control circuit 101 analyzes the signal from the signal receiving circuit 103, determines the specifications of the other party's position detection device, and determines the timing of signal interaction with the position detection sensor of the other party's position detection device. Then, the control circuit 101 controls the format of the signal output from the signal transmission circuit 102 so as to match the specifications of the position detection device of the other party, and interacts with the position detection sensor at a predetermined timing.
  • the signal transmission circuit 102 basically includes a position detection signal (burst signal) having a predetermined frequency for position detection by the position detection device, and pen pressure information according to the pen pressure detected by the pen pressure detection unit 8. A signal including and is output under the control of the control circuit 101.
  • the signal transmission circuit 102 also outputs a signal for detecting the tilt angle of the electronic pen 1. That is, the signal transmission circuit 102 sends a burst signal for position detection and for detecting the tilt angle of the electronic pen 1 under the control of the control circuit 101.
  • control circuit 101 detects the pen pressure based on the capacitance of the variable capacitance capacitor 8C composed of the pen pressure detection unit 8 during the period in which the burst signal for position detection is transmitted from the signal transmission circuit 102. Perform the action to be performed.
  • the control circuit 101 first charges the variable-capacity capacitor 8C to a fully charged state, and then stops charging to bring the variable-capacity capacitor 8C into a state of being discharged through the resistor 8R. Then, the time from the start of the discharge until the voltage across the variable capacitance capacitor 8C reaches a predetermined predetermined voltage is measured, and the capacitance of the variable capacitance capacitor 8C at that time is detected from that time. .. Since the capacitance of the variable capacitance capacitor 8C corresponds to the writing pressure applied to the core body 35 at that time, the writing pressure is detected based on the detected capacitance.
  • control circuit 101 converts the detected pen pressure into a multi-bit digital signal in this example, and outputs the pen pressure information corresponding to the digital signal from the signal transmission circuit 102. Control 102.
  • the control circuit 101 sets the electronic pen main body 3 in a signal reception mode for receiving a signal from the position detection sensor of the position detection device in a steady state. Then, in this signal reception mode, after confirming the reception of the signal from the position detection device and performing the above-mentioned predetermined processing, the mode is switched to the signal transmission mode for transmitting the signal to the position detection device.
  • the switch circuit 104 in the signal reception mode, the switch circuit 104 is turned off by the control signal SW1 (see FIG. 6C) from the control circuit 101, and the changeover switch circuit 105 is a movable terminal by the changeover control signal SW2. M is controlled to be connected to the terminal R (see FIG. 6D).
  • the signal from the position detection device received by the peripheral electrode 33 is supplied to the signal reception circuit 103 through the changeover switch circuit 105 and demodulated, and the demodulated received signal is the control circuit 101. Is supplied to.
  • the control circuit 101 analyzes the received signal from the position detection device, and determines the specifications of the other party's position detection device as described above.
  • the received signal from the position detection device includes information instructing the timing when the electronic pen main body 3 starts transmitting the signal, and the control is performed based on the information instructing the timing.
  • the circuit 101 determines the switching timing from the signal reception mode to the signal transmission mode, and performs processing such as determining the timing of the time division processing in the signal transmission mode. After that, the control circuit 101 executes the switching of the electronic pen main body 3 from the signal reception mode to the signal transmission mode.
  • the tilt detection period Tb for detecting the tilt angle of 1 is executed in a time division manner.
  • the switch circuit 104 is turned on by the control signal SW1 (see FIG. 6C), and the movable terminal M of the changeover switch circuit 105 is connected to the terminal G by the changeover control signal SW2. (See FIG. 6 (D)). Therefore, during the position detection period Ta, the peripheral electrode 33 is connected to the ground electrode through the changeover switch circuit 105. Then, the control circuit 101 controls the signal transmission circuit 102 so as to output the burst signal of the position detection signal and the pen pressure information during the position detection period Ta. The position detection signal and pen pressure information output from the signal transmission circuit 102 are supplied to the core body 35 through the switch circuit 104 and are transmitted to the position detection sensor. In this case, the control circuit 101 controls the signal transmission circuit 102 so that the pen pressure information is transmitted from the core body 35 after the burst signal transmission period ends.
  • the peripheral electrode 33 is connected to the ground electrode, the core body 35 is shielded except for the tip portion 35a which is the pen tip thereof. Therefore, the signal from the signal transmission circuit 102 is transmitted from the tip end portion 35a of the core body 35 without being affected by the outside.
  • the switch circuit 104 is turned off by the control signal SW1 (see FIG. 6C), and the changeover switch circuit 105 has the movable terminal M as the terminal S by the changeover control signal SW2. (See FIG. 6 (D)).
  • the control circuit 101 controls the signal transmission circuit 102 so as to generate a burst signal for inclination detection.
  • the burst signal for tilt detection is a signal having the same frequency as the burst signal of the position detection signal.
  • the burst signal for tilt detection from the signal transmission circuit 102 is supplied to the peripheral electrode 33 through the changeover switch circuit 105 and sent to the position detection sensor.
  • the position detection device that receives the burst signal for tilt detection through the position detection sensor detects the tilt angle of the electronic pen 1 as described later.
  • FIG. 7 is a block diagram for explaining a configuration example of a signal reception processing circuit from the electronic pen 1 of the capacitance type position detection device 200.
  • the position detection device 200 of this example includes a position detection sensor 210 and a pen detection circuit 220 connected to the position detection sensor 210.
  • the position detection sensor 210 isolates a plurality of first conductors 211Y 1 , 211Y 2 , ..., 211Y m (m is an integer of 1 or more) extending in the lateral direction (X-axis direction) from each other for a predetermined time.
  • a first conductor group arranged in parallel in the Y-axis direction and a plurality of second conductors 212X 1 , 212X 2 , ..., 212X n (n is 1 or more) extending in the vertical direction (Y-axis direction). It is composed of a second group of conductors arranged in parallel in the X-axis direction with integers) separated from each other for a predetermined period of time.
  • the first conductors 211Y and the second conductors are second. It will be referred to as the conductor 212X of.
  • the pen instruction detection circuit 220 includes a selection circuit 221 as an input / output interface with the position detection sensor 210, an amplifier circuit 222, a bandpass filter 223, a detection circuit 224, a sample hold circuit 225, and an AD (Analog to). It consists of a Digital) conversion circuit 226 and a control circuit 227.
  • the selection circuit 221 selects one conductor 211Y or 212X from the first conductor group and the second conductor group based on the control signal from the control circuit 227.
  • the conductor selected by the selection circuit 221 is connected to the amplifier circuit 222, and the signal from the electronic pen 1 (the electronic pen main body 3) is detected by the selected conductor and amplified by the amplifier circuit 222.
  • the output of the amplifier circuit 222 is supplied to the bandpass filter 223, and only the frequency component of the signal transmitted from the electronic pen 1 is extracted.
  • the output signal of the bandpass filter 223 is detected by the detection circuit 224, and the output signal is supplied to the sample hold circuit 225, sample-held by the sample signal from the control circuit 227, and then converted to a digital value by the AD conversion circuit 226. Will be converted.
  • the digital data from the AD conversion circuit 226 is read and processed by the control circuit 227.
  • the control circuit 227 sends a control signal to the sample hold circuit 225, the AD conversion circuit 226, and the selection circuit 221 respectively, and from the digital data from the AD conversion circuit 226, the position detection sensor 210 instructed by the electronic pen 1 The upper position coordinates are calculated and the pen pressure information is detected.
  • control circuit 227 detects the tilt angle of the electronic pen 1 as described below. A method of detecting the tilt angle of the electronic pen 1 with the position detecting device 200 will be described with reference to FIG.
  • the core body 35 of the electronic pen main body 3 of the electronic pen 1 is perpendicular to the input surface of the position detection sensor 210, the position detection period Ta , The tip portion 35a of the core body 35 and the position detection sensor 210 are electrostatically coupled, and the electrostatically coupled region OBa is a perfect circular region as shown in FIG. 8 (B).
  • the peripheral electrode 33 and the position detection sensor 210 are electrostatically coupled, and the electrostatically coupled region OBb is a ring-shaped region as shown in FIG. 8C. ..
  • the region OBa that electrostatically couples between the tip portion 35a of the core body 35 and the position detection sensor 210 during the period Ta remains a substantially perfect circular region.
  • the region OBb that electrostatically couples between the peripheral electrode 33 and the position detection sensor 210 is an ellipse that corresponds to the tilt angle and extends long in the tilt direction, as shown in FIG. It becomes an area of shape.
  • the control circuit 227 of the position detection device 200 can detect the magnitude of the tilt angle of the electronic pen 1 from the elliptical length of the region OBb shown in FIG. 8 (F) in the elliptical direction.
  • the direction of inclination of the electronic pen 1 can be detected.
  • the peripheral electrode 33 used to detect the tilt angle uses a signal having the same frequency as the signal supplied to the core body 35, but the signal supplied to the core body 35 is used.
  • the frequency may be different from the frequency of the signal supplied to the peripheral electrode 33.
  • the position detection device 200 can distinguish between the signal from the core body 35 and the signal from the peripheral electrode 33. Therefore, in the electronic pen main body 3 of the electronic pen 1, the position detection period Ta and the inclination detection period Tb are not executed in a time division manner as described above, but the signal from the core body 35 and the peripheral electrode 33 are used.
  • the signal may be configured to be sent to the position detection sensor 210 at the same time.
  • the distance between not only the tip portion 35a of the core body 35 but also the tapered portion 33b on the pen tip side of the peripheral electrode 33 and the input surface of the position detection sensor 210 Becomes shorter and the capacitance coupling (electric field coupling) between the two becomes stronger.
  • the pen tip side of the peripheral electrode 33 is a tapered portion 33b, the cross-sectional area of the tip portion on the pen tip side is reduced so that the electric field coupling with the position detection sensor 210 is stronger. become.
  • the electronic pen 1 of the first embodiment can be strongly electrically coupled to the position detection sensor 210 even when it is slimmed down, and in the position detection device 200, the indicated position by the electronic pen 1 Can be detected with high sensitivity.
  • the peripheral electrode 33 receives the signal from the position detection device 200, and the electronic pen main body is instructed by the received signal. Unit 3 starts transmitting a signal.
  • the position detection device can wait for reception of the signal from the electronic pen main body 3 while predicting the transmission of the signal from the electronic pen main body 3 of the electronic pen 1, and is compared with the electromagnetic induction method. Good operation can be realized even with an electric field coupling having a small coupling strength.
  • the electronic pen main body 3 is configured to be compatible with a replacement core of a commercially available ballpoint pen.
  • the pen housing 2 of the electronic pen 1 can be used by attaching a replacement core of a commercially available ballpoint pen instead of the electronic pen main body 3.
  • the electronic pen of the second embodiment is a modification of the first embodiment.
  • only one electronic pen main body 3 is housed in the pen housing 2 of the electronic pen 1.
  • a plurality of electronic pen main bodies are housed in the pen housing of the electronic pen, and one of the plurality of electronic pen main bodies is selected by the knock mechanism and selected.
  • the tip of the pen tip of the electronic pen body is projected from the opening on the pen tip side of the housing for use.
  • the electronic pen main body 3 of the electronic pen 1 of the first embodiment is provided with a configuration that can be compatible with the replacement core 6 of the ballpoint pen.
  • a commercially available ballpoint pen there is a multicolor ballpoint pen equipped with a replacement core having a different ink color.
  • the second embodiment provides an electronic pen configured by housing the electronic pen main body 3 in a housing having the same configuration as the housing of the multicolor ballpoint pen.
  • FIG. 9 is a configuration diagram showing the appearance of the electronic pen 1M of the second embodiment.
  • the pen housing 2M of the electronic pen 1M is also shown as a state in which the pen housing 2M is made of a transparent synthetic resin and the inside thereof can be seen through.
  • the pen housing 2M of the electronic pen 1M has almost the same configuration as the housing and knock mechanism of a commercially available knock-type multicolor ballpoint pen. However, similarly to the pen housing 2 and the knock cam mechanism portion 4 of the electronic pen 1 of the first embodiment, the pen housing 2M is provided with the charging electrodes 2Md and 2Me, and the electronic pen main body portion of the knock mechanism is provided. The configuration of the fitting portion into which the 3 is fitted is different from the housing and knock mechanism of a commercially available knock-type multicolor ballpoint pen. In the example of FIG. 9, three electronic pen main bodies 3BK, 3R, and 3E are housed in the pen housing 2M.
  • the electronic pen main body 3BK, 3R, 3E is externally the same as the electronic pen main body 3 of the first embodiment, except that the electronic pen main body 3BK, 3R, 3E is configured to have the same dimensions as the replacement core of the multicolor ballpoint pen. It is composed.
  • the electronic pen main body 3BK, 3R, 3E in the case of the second embodiment, in the main body housing 30 in which the electronic circuit parts are arranged, in addition to the signal transmission circuit described above, the identification of itself is performed. An IC and its peripheral circuits are provided to realize a function of transmitting information to the position detection device.
  • Other configurations of the electronic pen main body 3BK, 3R, and 3E are the same as those of the electronic pen main body 3 of the first embodiment.
  • the knock mechanism of the electronic pen 1M is provided with knock rods 42BK, 42R, 42E to which the electronic pen main bodies 3BK, 3R, and 3E are fitted, respectively.
  • the fitting portion provided on the knock rods 42BK, 42R, 42E has the same configuration as the fitting portion 43a of the knock cam mechanism portion 4 in the first embodiment.
  • the position detecting device used together with the electronic pen main body 3BK, 3R, 3E receives the identification information transmitted from each of the electronic pen main body 3BK, 3R, 3E and discriminates. It has a function to do. That is, the position detecting device in the case of this embodiment discriminates the difference between the electronic pen main body 3BK, 3R, 3E and realizes the functions assigned to each of the electronic pen main body 3BK, 3R, 3E. To do.
  • the electronic pen main body 3BK is assigned a function of displaying the writing trajectory (characters and figures) to be displayed in black according to the indicated position, and the electronic pen main body 3R is assigned according to the indicated position.
  • the function of displaying the writing locus to be displayed in red is assigned, and the electronic pen main body 3E is assigned the function of erasing the writing locus previously instructed and input according to the instructed position.
  • the position detection device recognizes the identification information included in the signals transmitted from each of the electronic pen main body 3BK, 3R, and 3E. Then, the position detecting device adds color information of the writing locus and erasing information according to the identification information to the coordinate information of the position instructed by each of the detected electronic pen main body 3BK, 3R, 3E. It is supplied to personal computers equipped with a display screen.
  • the functions assigned to the main body of the electronic pen are not only the display color of the locus according to the indicated position as in this example, but also the thickness of the locus and the type of line to be displayed such as solid line, dotted line, and alternate long and short dash line. There may be.
  • each electronic pen main body 3 is the pen housing. It deviates from the 2M opening 2Ma. Therefore, when one of the plurality of electronic pen main bodies 3 is extended from the opening 2Ma of the pen housing 2M by using a knock mechanism, the electronic pen main body is pushed out. The portion 3 is slightly bent with respect to the fitting portion of the pen housing 2M.
  • the main body tubular portion 31 of the electronic pen main body 3 of this embodiment includes the resin pipe portion 31b
  • the elasticity of the resin pipe portion 31b causes the tip of the electronic pen main body 3 to be extended when the tip portion is extended. It is possible to cope with the bending of the electronic pen main body 3.
  • the tip portion of the electronic pen main body portion 3 is bent at the time of feeding. Is adjusted to a length that can be well absorbed by the resin pipe portion 31b.
  • all of the fitting portions of the three knock rods 42BK, 42R, 42E are provided with a conductor capable of fitting the electronic pen main body portion 3, but a plurality of fitting portions are provided.
  • At least one of the knock rods may be used for the electronic pen main body 3, and the fitting portion thereof may be configured to include a conductor, and the other may be configured to be a replacement core for a ballpoint pen not provided with a conductor.
  • the second embodiment is an example in which three knock rods are provided, the number of knock rods may be two or four or more.
  • the electronic pen main body 3B of the third embodiment has a different configuration of a portion that fits with the pen housing of the electronic pen from the electronic pen main body 3 of the first and second embodiments described above. , Others are configured in the same way. Therefore, the configuration of the fitting portion provided in the pen housing 2B of the electronic pen 1B into which the electronic pen main body portion 3B of the third embodiment is fitted is also the above-described first embodiment and the second embodiment. Different from.
  • FIG. 10 is a diagram showing a configuration example of the electronic pen main body 3B of the third embodiment.
  • FIG. 10A shows a first example of the electronic pen main body 3B of this embodiment
  • FIG. 10C shows a second example of the electronic pen main body 3B of this embodiment.
  • the first example and the second example differ only in the configuration of the portion to be fitted with the fitting portion of the pen housing 2B of the electronic pen 1B of the third embodiment, and the other parts are different. It has almost the same configuration.
  • the same reference numerals as those of the electronic pen main body 3 of the first embodiment and the second embodiment described above are designated by the same reference numerals, and detailed description thereof will be omitted.
  • FIG. 11A shows a configuration example of the electronic pen 1B of the third embodiment to which the electronic pen main body 3B of the third embodiment is mounted.
  • FIG. 11A is a diagram showing a state in which the pen tip side of the electronic pen main body 3B is projected from the opening of the pen housing 2B in the electronic pen 1B of the third embodiment, as described above. It is a figure corresponding to the thing shown in FIG. 1 (B) about the electronic pen 1 of 1st Embodiment.
  • a fitting portion 43ap into which the electronic pen main body portion 3B of the third embodiment is fitted is provided in the pen housing 2B of the electronic pen 1B of the third embodiment.
  • the operation information of the side switch 2S is transmitted to the electronic pen main body 3B through the fitting portion 43ap.
  • the electronic pen main body 3B of the third embodiment sends the operation information of the side switch 2S to the position detection device in addition to the position detection signal and the pen pressure information.
  • the position detection device is set with a function corresponding to the operation information of the side switch 2S, and is processed according to the set function according to the operation information of the side switch 2S received from the electronic pen main body 3B. I do.
  • the conductor band 2f is made of a tubular body made of a conductive material such as conductive rubber, and is provided so as to cover a part of the outer circumference of the pen housing 2 in the axial direction. In this third embodiment, it is configured to be connected to the ground electrode of the electronic pen main body 3B through the fitting portion 43ap.
  • the conductor band 2f and the ground electrode of the electronic pen main body 3B connected to the conductor band 2f (the metal pipe portion 31a of the main body tubular portion 31 are also connected). Is connected (grounded) to the ground through the user's human body.
  • the peripheral electrode 33 is coupled to the pen tip side of the main body tubular portion 31 via the tubular coupling member 32.
  • a front cap 34 is attached to the pen tip side of the main body housing 30 of the electronic pen main body 3B, and the core body 35 is inserted and attached through the opening of the front cap 34.
  • the core body holding member 7, the pen pressure detection unit 8, and the signal transmission circuit are mounted on the hollow portion of the main body housing 30 as in the electronic pen main body portion 3 of the first embodiment and the second embodiment described above.
  • the printed circuit board 9 and the capacitor 10 as an example of the power storage element for supplying the power supply voltage are arranged and housed in the axial direction.
  • the main body tubular portion 31 is configured by combining the metal pipe portion 31a and the resin pipe portion 31b. Then, at the rear end of the resin pipe portion 31b, a connector that is fitted to the fitting portion 43ap provided in the pen housing 2B of the electronic pen 1B, in this example, the connector plug 50 is provided.
  • the connector plug 50 is electrically connected to the electronic circuit formed on the capacitor 10 and the printed circuit board 9 housed in the electronic pen main body 3B, and is insulated from each other.
  • five terminal portions 51a, 52a, 53a, 54a, 55a are provided.
  • the five terminal portions 51a, 52a, 53a, 54a, 55a of the connector plug 50 are configured as follows. That is, in this example, the terminal portion 51a is made of the conductor metal constituting the central mandrel.
  • the connector plug 50 has cylindrical terminal portions 52a, 53a, each of which has an insulating layer formed on the inner wall surface of the rod-shaped conductor metal of the terminal portion 51a. 54a and 55a are concentrically combined to form a structure.
  • the terminal portion 51a of the conductor metal constituting the central mandrel is set as the tip portion in the axial direction, and the annular peripheral surface and the tip thereof are exposed by a predetermined length in the axial direction.
  • Each of the cylindrical terminal portions 52a, 53a, 54a, 55a is provided so that its annular peripheral surface is exposed by a predetermined length in the axial direction. That is, the five terminal portions 51a, 52a, 53a, 54a, 55a of the connector plug 50 are in a state in which the annular conductor contact portions are exposed at different positions in the axial direction.
  • the terminal portion 51a has a columnar shape, its annular peripheral side surface and tip portion form a conductor contact portion.
  • the connector plug 50 is inserted into the fitting recess of the connector jack 90 formed in the fitting portion 43ap provided in the rotor 43 arranged in the hollow of the pen housing 2B of the electronic pen 1B.
  • the connector jack 90 is elastically connected to each of the five contact terminals 91, 92, 93, 94, and 95.
  • Each of the five contact terminals 91, 92, 93, 94, 95 is made of a conductive elastic metal, and is a charging electrode 2d, 2e, a side switch 2S, and a conductor band 2f provided in the pen housing 2B. They are electrically connected to each (see FIG. 11B).
  • FIG. 11B shows a pen housing of the electronic pen 1B in which the connector plug 50 is inserted into the connector jack 90 and connected to the electronic circuit component inside the electronic pen main body 3B. It is a figure which shows typically the example of the electronic circuit component arranged in 2B.
  • the terminal portions 51a, 52a, 53a, 54a, 55a of the connector plug 50 are the five contact terminals 91, 92, 93, respectively provided in the connector jack 90. Electrically connected to the charging electrodes 2e and 2d, both ends 2Sa and 2Sb of the side switch 2S, and the conductor band 2f through 94 and 95 (in FIG. 11B, the contact terminal of the connector jack 90 is not shown). Has been done.
  • the five terminal portions 51b, 52b, 53b, 54b, 55b of the connector plug 50 are configured as follows.
  • the connector plug 50 of this example has the same configuration as a pin plug for audio (for example, a 5-pole pin plug with a noise canceling function), and in this example, the five terminal portions 51b, 52b, 53b, 54b. , 55b are in a state where the annular conductor contact portions having the same diameter are exposed at different positions in the axial direction.
  • the terminal portion 51b at the tip of the five terminal portions 51b, 52b, 53b, 54b, 55b is a chip terminal
  • the three intermediate terminal portions 52b, 53b, 54b are insulated rings 56a, 56b, respectively.
  • , 56c, 56d form a ring terminal that is insulated from other terminal portions
  • the terminal portion 55b on the root side of the electronic pen main body portion 3B is a sleeve terminal.
  • the connector jack 90 to be coupled to the connector plug 50 of the electronic pen main body 3B of FIG. 10 (C) is also a circle of five terminal portions 51b, 52b, 53b, 54b, 55b as in FIG. 10 (B). It is provided with five contact terminals that contact each of the annular conductor contact portions to form an electrical connection. Therefore, the same applies to the case where the connector plug 50 and the connector jack 90 of the electronic pen main body 3B of the second example shown in FIG. 10C are coupled, as in the first example.
  • a connector plug is provided at the rear end of the main body tubular portion 31 of the electronic pen main body 3B opposite to the pen tip side, and a connector jack is provided at the fitting portion 43ap of the pen housing 2B.
  • a connector jack is provided at the rear end of the main body tubular portion 31 of the electronic pen main body 3B opposite to the pen tip side, and a connector plug is provided at the fitting portion 43ap of the pen housing 2B. It may be configured.
  • the structure of the connector in the third embodiment can be applied to the case of the multicolor ballpoint pen in the second embodiment.
  • the side switch may be provided corresponding to each of the plurality of electronic pen main bodies fitted to each of the plurality of fitting portions of the pen housing, or the side switches may be provided corresponding to each of the plurality of electronic pen main bodies. It may be one shared by the department. When one of the plurality of fitting portions of the pen housing is used for the electronic pen main body and the other is configured for the replacement core of the ballpoint pen, one side switch is used for the one electronic pen main body. Needless to say, it is sufficient to provide.
  • FIG. 12 shows another embodiment of the electronic pen main body.
  • FIG. 12A shows a modified example of the electronic pen main body 3 of the first embodiment described above, and this example is compatible with the ballpoint pen replacement core 6 as in the first embodiment.
  • This is an example that is configured to take. Therefore, in the electronic pen main body 3C of this embodiment, the same reference reference numerals are given to the same components as those of the first embodiment, and detailed description thereof will be omitted.
  • a peripheral electrode 33C having a shape different from that of the peripheral electrode 33 of the electronic pen main body 3 of the first embodiment is used. That is, as shown in FIG. 12A, the peripheral electrode 33C of the electronic pen main body 3C of this embodiment has a tubular shape whose outer diameter is constant in the axial direction, and the outer diameter thereof is large.
  • the diameter R1 (see FIG. 2) is smaller than the diameter of the opening 2b of the pen housing 2 of the electronic pen.
  • the configuration of the peripheral electrode 33C is different from that of the electronic pen main body 3 of the first embodiment.
  • the tubular coupling member 32C is configured so that the peripheral electrode 33C can be coupled to the main body tubular portion 31 via the ring-shaped flange portion 32CF according to the configuration of the peripheral electrode 33C.
  • the front cap 34C is also configured by being modified according to the configuration of the peripheral electrode 33C. Others have the same configuration as the electronic pen main body 3 of the first embodiment.
  • the electronic pen main body 3C of the example of FIG. 12A is also housed in the pen housing 2 of the electronic pen 1, and the resin pipe portion 31b side of the main body tubular portion 31 is fitted into the fitting portion 43a. be able to. Then, by pressing the knock rod 42 of the knock cam mechanism portion 4, a part of the tip portion 35a of the core body, the front cap 34C, and the peripheral electrode 33C on the pen tip side of the electronic pen main body 3C can be removed. It can be in a state of protruding from the opening 2b.
  • the same action and effect as that of the electronic pen main body 3 of the first embodiment can be obtained, and when used, in FIG. 10 (A).
  • the core body 35, the front cap 34C, and a part of the peripheral electrode 33C on the pen tip side project to the outside.
  • a cylindrical portion having a constant outer diameter of the peripheral electrode 33C is located at the opening portion of the housing 2C. Therefore, by adjusting the outer diameter of the cylindrical portion of the peripheral electrode 33C, the outer diameter of the peripheral electrode 33C can be adjusted.
  • the opening of the housing 2C makes it easy to prevent the pen tip side of the electronic pen main body 3C from rattling.
  • FIG. 12B also shows a modified example of the electronic pen main body 3 of the first embodiment described above, and the main body tubular portion 31D of the electronic pen main body 3D of this embodiment and the main body tubular portion 31D.
  • the portion of the tubular coupling member 32D is different from the electronic pen main body portion 3 of the first embodiment, and the other portions have the same configuration. Therefore, also in the electronic pen main body 3D of this embodiment, the same reference reference numerals are given to the same components as those of the first embodiment, and detailed description thereof will be omitted.
  • the main body tubular portion 31D of the electronic pen main body 3D of this embodiment includes an outer diameter R3 larger than the outer diameter R2 of the main body tubular portion 31 of the electronic pen main body 3 of the first embodiment.
  • the inner diameter of the main body tubular portion 31D of the electronic pen main body 3D of this embodiment is also larger than the inner diameter of the main body tubular portion 31 of the electronic pen main body 3 of the first embodiment.
  • the configuration of the main body tubular portion 31D is different from that of the electronic pen main body 3 of the first embodiment.
  • the tubular coupling member 32D that connects the electrodes 33 is configured so that the peripheral electrodes 33 can be coupled to the main body tubular portion 31D via the ring-shaped flange portion 32DF in accordance with the configuration of the main body tubular portion 31D. ing.
  • the main body tubular portion 31D of the electronic pen main body 3D of this embodiment includes a hollow portion having a large space. Then, in the electronic pen main body 3D of this embodiment, the capacitor as the power storage element used in the electronic pen main body 3 of the first embodiment is utilized by utilizing the space of the large hollow portion of the main body tubular portion 31D.
  • the primary battery (battery) 10BT is housed in the hollow portion.
  • the other electronic circuit parts in the main body tubular portion 31D are housed in the main body tubular portion 31D in the same manner as in the first embodiment, and the required power supply voltage to each part is from the primary battery 10BT. Be supplied.
  • the main body tubular portion 31D is made of a metal pipe, and a closing cap 31De is detachably attached to the rear end portion on the side opposite to the pen tip side.
  • the electronic pen main body 3D of this embodiment is configured so that the closing cap 31De can be removed and the primary battery 10BT housed in the main body tubular portion 31D can be replaced.
  • the main body tubular portion 31D may have a configuration in which the metal pipe portion and the resin pipe portion are combined, as in the above-described embodiment.
  • the housing of the electronic pen that houses the electronic pen main body 3D of this embodiment has a different configuration from the housing of the electronic pen of the above-described embodiment. That is, even when a housing provided with a knock cam mechanism or a knock mechanism is used as the housing of the electronic pen for the electronic pen main body 3D as in the above-described embodiment, the electronic of the housing of the electronic pen is used. It is not necessary to provide an electrical configuration in the fitting portion that fits with the pen body portion 3D.
  • the pen tip side of the housing is provided with an opening having a diameter larger than the diameter R1, and in the used state, the tip portion 35a of the core body 35 and the front cap 34 on the pen tip side of the electronic pen main body 3D. And a part of the peripheral electrode 33 on the pen tip side is made to protrude to the outside from the opening of the housing, as in the above-described embodiment.
  • the replacement core of the ballpoint pen various types are known, not limited to the one in which the ink storage portion is made of a thin resin pipe as shown in FIG. 2 (A), and the electronic pen main body of this example.
  • the ink storage portion is made of a thin resin pipe as shown in FIG. 2 (A)
  • the electronic pen main body of this example There is a cartridge type in which the ink storage portion is thick, such as the main body tubular portion 31D of the portion 3D.
  • the electronic pen main body 3D of this embodiment can also be attached to the housing of such a cartridge type ballpoint pen.
  • main body tubular portion 31D is configured to be thick as in the electronic pen main body 3D of this embodiment, instead of providing the primary battery 10BT in the hollow portion of the main body tubular portion 31D, a secondary battery or , A power storage element such as a capacitor is provided, and the configuration of the rear end side of the main body tubular portion 31D is the same as that of the electronic pen main body 3 of the first embodiment, or the electronic pen of the third embodiment. It may be configured in the same manner as the main body 3B.
  • FIG. 12 (B) From the opening of the housing 2D of the electronic pen shown by the dotted line, a part of the core body 35, the front cap 34, and a part of the tapered portion on the pen tip side of the peripheral electrode 33 protrudes to the outside.
  • FIG. 12 (C) is a modified example of the electronic pen main body 3C of FIG. 12 (A).
  • the peripheral electrode 33C'of the electronic pen main body 3C'in the example of FIG. 12 (C) has a tapered portion 33C'b on the pen tip side, which is the electronic pen main body 3 of the example of FIG. 12 (A). It is different from the peripheral electrode 33C of. That is, the peripheral electrode 33C'of the electronic pen main body 3C'in this example is a cylinder whose outer diameter is smaller than the diameter R0 (see FIG. 1) of the opening 2b of the pen housing 2 of the electronic pen.
  • the shape is such that the tapered portion 33C'b is formed on the pen tip side of the shape portion 33C'a.
  • the front cap 34C' is provided at the tip of the tapered portion 33C'b of the peripheral electrode 33C'. Others are configured in the same manner as the electronic pen main body 3C in the example of FIG. 12 (A).
  • the pen of the core 35, the front cap 34C', and the peripheral electrode 33C' is used through the opening of the electronic pen housing 2C.
  • a part of the front side protrudes to the outside.
  • a part of the peripheral electrode 33C'protruding to the outside includes not only the tapered portion 33C'b but also a part of the cylindrical portion 33C'a, and the cylindrical portion is located at the opening of the housing 2C. Since the shape portion 33C'a is formed, the same action and effect as in the example of FIG. 12 (A) can be obtained.
  • the electronic pen main body is configured to be compatible with the replacement core of the ballpoint pen of the writing instrument, but it goes without saying that it can also be configured for a dedicated electronic pen. ..
  • the electronic pen main body is configured to be knocked in and out of the housing, but the present invention is not limited to such a knock type, and the electronic pen main body is simply a pen. It may be an electronic pen in a form housed in a housing. In that case, the pen tip side of the electronic pen body always protrudes from the opening of the pen housing, but the cap is screwed or press-fitted to protect the protruding pen tip side.
  • the pen tip side of the electronic pen main body may be covered with a cap.
  • peripheral electrode is composed of a tubular conductor, it may be configured in a tubular shape by a conductor divided into a plurality of conductors in the circumferential direction.
  • the core body 35 is made of a conductive metal, it may be made of a hard resin mixed with conductor powder, as long as it has conductivity.
  • the main body tubular portion of the electronic pen main body portion may be composed of a metal pipe alone or a resin pipe alone, instead of a configuration in which the metal pipe portion and the resin pipe portion are connected.
  • a conductor for electrical connection is formed via an insulator such as resin.
  • the member is provided at the rear end portion of the main body tubular portion on the side opposite to the pen tip side.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Position Input By Displaying (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
PCT/JP2020/037051 2019-10-16 2020-09-30 電子ペン及び電子ペン用本体部 Ceased WO2021075257A1 (ja)

Priority Applications (10)

Application Number Priority Date Filing Date Title
CN202511973476.8A CN121657879A (zh) 2019-10-16 2020-09-30 电子笔及电子笔用主体部
JP2021552301A JP7596286B2 (ja) 2019-10-16 2020-09-30 電子ペン及び電子ペン用本体部
EP20876225.2A EP4026703A4 (en) 2019-10-16 2020-09-30 ELECTRONIC PEN AND ELECTRONIC PEN BODY PART
CN202080070309.1A CN114556272B (zh) 2019-10-16 2020-09-30 电子笔及电子笔用主体部
CN202511976501.8A CN121657880A (zh) 2019-10-16 2020-09-30 电子笔及电子笔用主体部
US17/690,633 US11874977B2 (en) 2019-10-16 2022-03-09 Electronic pen and cartridge-type electronic pen main body including an conductive center electrode and a peripheral electrode
US18/529,385 US12153745B2 (en) 2019-10-16 2023-12-05 Electronic pen and cartridge-type electronic pen main body including an conductive center electrode and a peripheral electrode
US18/920,514 US20250044884A1 (en) 2019-10-16 2024-10-18 Electronic pen and cartridge-type electronic pen main body including an conductive center electrode and a peripheral electrode
JP2024205928A JP7757508B2 (ja) 2019-10-16 2024-11-27 電子ペン及び電子ペン用本体部
JP2025169823A JP2025182112A (ja) 2019-10-16 2025-10-08 電子ペン及び電子ペン用本体部

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019-189501 2019-10-16
JP2019189501 2019-10-16

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US17/690,633 Continuation US11874977B2 (en) 2019-10-16 2022-03-09 Electronic pen and cartridge-type electronic pen main body including an conductive center electrode and a peripheral electrode

Publications (1)

Publication Number Publication Date
WO2021075257A1 true WO2021075257A1 (ja) 2021-04-22

Family

ID=75537996

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2020/037051 Ceased WO2021075257A1 (ja) 2019-10-16 2020-09-30 電子ペン及び電子ペン用本体部

Country Status (5)

Country Link
US (3) US11874977B2 (https=)
EP (1) EP4026703A4 (https=)
JP (3) JP7596286B2 (https=)
CN (3) CN121657880A (https=)
WO (1) WO2021075257A1 (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116301411B (zh) * 2023-05-25 2023-08-04 南京湃睿半导体有限公司 压感分级感应装置、压感感应方法及静电容式触控笔

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013161307A (ja) 2012-02-06 2013-08-19 Wacom Co Ltd 位置指示器
JP5687398B1 (ja) 2014-07-08 2015-03-18 株式会社ワコム 位置指示器
JP2015222518A (ja) * 2014-05-23 2015-12-10 株式会社ワコム 位置検出装置及び位置指示器
JP2016153954A (ja) * 2015-02-20 2016-08-25 株式会社ワコム 位置指示器、信号処理回路、信号供給制御方法及び信号処理方法
WO2016143498A1 (ja) * 2015-03-06 2016-09-15 株式会社ワコム 電子ペン及び電子ペン用本体部
JP2017224178A (ja) * 2016-06-16 2017-12-21 株式会社ワコム 筆記具及び電子ペン本体部
JP2018206093A (ja) * 2017-06-06 2018-12-27 株式会社ワコム 位置指示器
JP2019121389A (ja) * 2017-12-29 2019-07-22 エルジー ディスプレイ カンパニー リミテッド タッチ表示装置、タッチシステム、タッチ駆動回路、ペン、及びペンセンシング方法

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0756226Y2 (ja) * 1989-06-15 1995-12-25 三菱鉛筆株式会社 筆記具等のキャップ
US6062753A (en) * 1998-08-17 2000-05-16 Pentech International Inc. Writing instrument with enhanced tactile control and gripping comfort and method of making same
JP2008307803A (ja) * 2007-06-15 2008-12-25 Pilot Corporation 両頭回転繰出式多芯筆記具
JP5669263B2 (ja) * 2011-04-11 2015-02-12 株式会社ワコム 位置指示器
JP5729116B2 (ja) * 2011-05-06 2015-06-03 大日本印刷株式会社 入力システム及びプログラム
US8638320B2 (en) * 2011-06-22 2014-01-28 Apple Inc. Stylus orientation detection
JP6080256B2 (ja) * 2012-12-17 2017-02-15 株式会社ワコム 静電方式スタイラスペン
JP2015060663A (ja) * 2013-09-17 2015-03-30 トヨタ自動車株式会社 基板のスルーホール電極
KR102270454B1 (ko) * 2013-09-27 2021-06-29 센셀, 인크. 용량성 터치 센서 시스템 및 방법
WO2016031329A1 (ja) * 2014-08-29 2016-03-03 株式会社ワコム 位置指示器及び位置指示器用カートリッジ
JP6370171B2 (ja) * 2014-09-02 2018-08-08 株式会社ワコム 位置指示器
WO2016079776A1 (ja) * 2014-11-17 2016-05-26 株式会社ワコム 位置指示器
WO2016121477A1 (ja) * 2015-01-29 2016-08-04 株式会社ワコム 電子ペン
CN107111379B (zh) * 2015-01-30 2021-03-16 株式会社和冠 位置指示器
JP5999803B1 (ja) * 2015-02-12 2016-09-28 株式会社ワコム 位置指示器
JP6691106B2 (ja) * 2015-04-17 2020-04-28 株式会社ワコム 電子ペン
WO2016185915A1 (ja) * 2015-05-15 2016-11-24 株式会社ワコム 電子ペン
KR102356636B1 (ko) * 2015-06-26 2022-01-28 삼성전자주식회사 입력 장치, 그 입력 장치로부터 신호를 입력받는 전자기기 및 그 제어방법
US10296108B2 (en) * 2015-07-06 2019-05-21 Sigmasense, Llc. Pen system with internal pressure tilt rotation
US10168804B2 (en) * 2015-09-08 2019-01-01 Apple Inc. Stylus for electronic devices
WO2018070085A1 (ja) * 2016-10-11 2018-04-19 株式会社ワコム 多機能電子ペン
TWI636383B (zh) * 2016-10-17 2018-09-21 禾瑞亞科技股份有限公司 觸控筆與其筆尖結構
KR102303136B1 (ko) * 2017-03-16 2021-09-17 삼성전자주식회사 입력 장치, 전자 시스템 및 그 제어 방법
EP3499346A1 (en) * 2017-12-14 2019-06-19 Société BIC Active stylus

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013161307A (ja) 2012-02-06 2013-08-19 Wacom Co Ltd 位置指示器
JP2015222518A (ja) * 2014-05-23 2015-12-10 株式会社ワコム 位置検出装置及び位置指示器
JP5687398B1 (ja) 2014-07-08 2015-03-18 株式会社ワコム 位置指示器
JP2016153954A (ja) * 2015-02-20 2016-08-25 株式会社ワコム 位置指示器、信号処理回路、信号供給制御方法及び信号処理方法
WO2016143498A1 (ja) * 2015-03-06 2016-09-15 株式会社ワコム 電子ペン及び電子ペン用本体部
JP2017224178A (ja) * 2016-06-16 2017-12-21 株式会社ワコム 筆記具及び電子ペン本体部
JP2018206093A (ja) * 2017-06-06 2018-12-27 株式会社ワコム 位置指示器
JP2019121389A (ja) * 2017-12-29 2019-07-22 エルジー ディスプレイ カンパニー リミテッド タッチ表示装置、タッチシステム、タッチ駆動回路、ペン、及びペンセンシング方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4026703A4

Also Published As

Publication number Publication date
US20240103649A1 (en) 2024-03-28
CN121657879A (zh) 2026-03-13
US11874977B2 (en) 2024-01-16
JP7757508B2 (ja) 2025-10-21
US12153745B2 (en) 2024-11-26
JP2025019268A (ja) 2025-02-06
US20220197411A1 (en) 2022-06-23
JPWO2021075257A1 (https=) 2021-04-22
EP4026703A4 (en) 2022-11-02
US20250044884A1 (en) 2025-02-06
EP4026703A1 (en) 2022-07-13
CN114556272B (zh) 2026-01-06
CN121657880A (zh) 2026-03-13
JP7596286B2 (ja) 2024-12-09
CN114556272A (zh) 2022-05-27
JP2025182112A (ja) 2025-12-11

Similar Documents

Publication Publication Date Title
KR102414059B1 (ko) 필기구 및 전자 펜 본체부
CN120653129A (zh) 静电容方式的电子笔
US12271540B2 (en) Electronic pen and electronic pen main unit
JPWO2018070085A1 (ja) 多機能電子ペン
JP2025182112A (ja) 電子ペン及び電子ペン用本体部
JP2024163276A (ja) 電子ペン及び電子ペン用カートリッジ
US20220244798A1 (en) Electronic pen

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20876225

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2021552301

Country of ref document: JP

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 2020876225

Country of ref document: EP

Effective date: 20220408

NENP Non-entry into the national phase

Ref country code: DE

WWW Wipo information: withdrawn in national office

Ref document number: 2020876225

Country of ref document: EP