Press-type electronic pen

Abstract

The present invention provides a push-type electronic pen that can solve the problems in the case where position indicating portions are provided on the tip side of the pen housing and the rear end portion side opposite to the tip side. The push-type electronic pen includes: a first position indicating portion disposed on the opening side on the tip side of the cylindrical housing; a second position indicating portion disposed on the rear end portion side of the housing; and a push cam mechanism portion having a push portion that has a portion protruding outward from the opening on the rear end portion side of the housing. By operating the push portion, the front end portion of the first position indicating portion is brought into a state of protruding from the opening on the tip side and a state of housing the first position indicating portion in the housing. The second position indicating portion is housed in the push cam mechanism portion in a state where the front end portion side is housed in the push portion. A holding mechanism portion is provided. When the front end portion of the first position indicating portion protrudes from the opening of the housing, the holding mechanism portion causes the push portion to return to a state of protruding outward from the opening on the rear end side of the housing and holds the push portion.

Description

Technical Field

[0001] The present invention relates to a push-type electronic pen suitable for use in, for example, an electronic pen with an electronic eraser function. Background Art

[0002] Due to the recent trend towards miniaturization, there is also a strong demand for the miniaturization of portable electronic devices. Moreover, when an electronic pen is used together with a position detection sensor mounted on such a small electronic device, a thinner electronic pen is required.

[0003] Furthermore, recently, an electronic pen has been regarded as an extension of stationery, and it is also desired to modularize the constituent parts of the position indicating portion provided inside its pen housing and treat them in the same manner as the replacement core (refill or cartridge) of a ballpoint pen. Hereinafter, in this specification, the constituent parts of the position indicating portion inside the pen housing of the electronic pen are modularized and integrated, and a component that is configured to be replaceable like the replacement core of a ballpoint pen is referred to as an electronic pen cartridge.

[0004] The applicant has already proposed a push-type electronic pen that is configured to be able to treat an electronic pen cartridge for an electronic pen in the same manner as the replacement core of a ballpoint pen, and can directly use the housing of a push-type ballpoint pen as the pen housing of the electronic pen (for example, refer to Patent Document 1 (Japanese Patent No. 5959038)).

[0005] Prior Art Documents

[0006] Patent Documents

[0007] Patent Document 1: Japanese Patent No. 5959038 Summary of the Invention

[0008] Problems to be Solved by the Invention

[0009] However, there is also provided an electronic pen that includes an electronic eraser function portion having the same structure as the position indicating portion for writing input, which is used to erase information written and input on a position detection sensor by the position indicating portion of the electronic pen. In this case, the position indicating portion for writing input is disposed on one end side in the axial direction of the cylindrical pen housing, and the position indicating portion constituting the electronic eraser function portion is disposed on the other end side in the axial direction of the cylindrical pen housing.

[0010] Therefore, in the case of a push-type electronic pen, it is considered to dispose the position indicating portion constituting the electronic eraser function portion on the push button side.

[0011] However, when the position indicating portion for writing input protrudes from one opening of the housing by pressing the pressing portion of the pressing cam mechanism portion, the pressing portion is in a state where its position in the axial direction is not locked and it can move freely in the axial direction. Therefore, when the position indicating portion constituting the electronic eraser function portion is provided on the pressing portion, during use, the position on the front end side of the position indicating portion constituting the electronic eraser function portion moves in the axial direction and cannot be stably operated, making it inconvenient.

[0012] An object of the present invention is to provide a pressing type electronic pen that can solve the problems in the case where position indicating portions are provided not only on the tip side of the pen housing but also on the rear end side opposite to the tip side as described above.

[0013] Technical solution for solving the problem

[0014] In order to solve the above problems, there is provided a pressing type electronic pen, characterized by comprising:

[0015] A cylindrical housing;

[0016] A first position indicating portion arranged in a state where the opening side at one end side in the axial direction of the cylindrical housing becomes the front end side for position indication;

[0017] A second position indicating portion arranged in a state where the opening side at the other end side in the axial direction of the cylindrical housing becomes the front end side for position indication; and

[0018] A pressing cam mechanism portion having a pressing portion that has a portion protruding outward from the opening at the other end side in the axial direction of the cylindrical housing, and by pressing the pressing portion, at least the core of the front end portion of the first position indicating portion is made to protrude from the opening at the one end side of the cylindrical housing and the first position indicating portion including the front end portion is also housed in the housing,

[0019] The second position indicating portion is housed in the pressing cam mechanism portion in a state where at least the core side of the front end portion is housed in the portion of the pressing portion protruding outward from the opening at the other end side of the housing,

[0020] The pressing type electronic pen is provided with a holding mechanism portion that, when at least the core of the first position indicating portion becomes a state of protruding from the opening at the one end side of the cylindrical housing by pressing the pressing portion, causes the pressing portion that has been pressed into the housing by the pressing operation to return to a state of protruding outward from the opening at the other end side in the axial direction of the cylindrical housing and holds the pressing portion.

[0021] In the push-type electronic pen having the above structure, the first position indicating portion is configured to be disposed such that the opening side at one end in the axial direction of the cylindrical housing serves as the front end side for position indication. Corresponding to the pushing operation of the pushing portion of the push cam mechanism portion, at least the core of the front end portion of the first position indicating portion is caused to protrude from the opening at one end side of the cylindrical housing and the first position indicating portion including the front end portion is also housed in the housing.

[0022] Moreover, the second position indicating portion is housed in the push cam mechanism portion in a state where at least the core side of its front end portion is housed in the portion protruding outward from the opening at the other end side of the housing of the pushing portion, whereby it is configured such that the opening side at the other end in the axial direction of the cylindrical housing serves as the front end side for position indication.

[0023] Moreover, the push-type electronic pen having the above structure includes a holding mechanism portion. When at least the core of the first position indicating portion protrudes from the opening at one end side of the cylindrical housing by the pushing operation of the pushing portion, the holding mechanism portion causes the pushing portion that has been pressed into the housing by the pushing operation to return to a state of protruding outward from the opening at the other end side in the axial direction of the cylindrical housing and holds the pushing portion.

[0024] According to the push-type electronic pen having the above structure, through the push cam mechanism portion, in a state where the front end portion of the first position indicating portion protrudes from the opening at one end side in the axial direction of the housing, the pushing portion of the push cam mechanism portion is also held in a state of protruding from the opening at the other end side in the axial direction of the housing by the holding mechanism portion. Therefore, as the second position indicating portion, for example, in the case where an electronic eraser function portion is provided, when the housing is turned upside down to operate the front end portion of the second position indicator on the position detection sensor in order to erase the writing input information input by the first position indicating portion whose front end portion protrudes from one end side in the axial direction of the housing, since the position in the axial direction of the front end portion of the second position indicator is held by the holding mechanism portion, there is an effect that the usability is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a diagram for explaining a structural example of an embodiment of the push-type electronic pen of the present invention.

[0026] Figure 2 is a diagram for explaining a structural example of a position indicating portion of an embodiment of the push-type electronic pen of the present invention.

[0027] Figure 3 is a diagram for explaining a structural example of a holding mechanism portion of an embodiment of the push-type electronic pen of the present invention.

[0028] Figure 4This is a diagram showing a structural example of a part of the holding mechanism section for explaining the implementation mode of the pressing type electronic pen of the present invention.

[0029] Figure 5 This is a diagram showing a structural example of a part of the holding mechanism section for explaining the implementation mode of the pressing type electronic pen of the present invention.

[0030] Figure 6 This is a diagram showing a structural example of a part of the holding mechanism section for explaining the implementation mode of the pressing type electronic pen of the present invention.

[0031] Figure 7 This is a diagram showing a structural example of the position detection device used together with the implementation mode of the pressing type electronic pen of the present invention. Detailed implementation mode

[0032] Hereinafter, the implementation mode of the pressing type electronic pen of the present invention will be described with reference to the drawings. In the electronic pen of this implementation mode, there is a structure in which an electromagnetic induction type electronic pen case having a cassette type structure is detachably housed in a cylindrical housing (referred to as a pen housing) of the electronic pen.

[0033] Figure 1 This is a diagram showing a structural example of the implementation mode of the pressing type electronic pen of the present invention. In addition, in the example of Figure 1 the pen housing 2 of the electronic pen 1 is made of a transparent synthetic resin, and is shown in a state where its interior can be seen through.

[0034] The pressing type electronic pen 1 of this implementation mode is configured such that a writing input electronic pen case 3 as an example of a first position indicating part and an electronic pen case 4 constituting an electronic eraser function part as an example of a second position indicating part are housed in a hollow part 2a of a cylindrical, in this example, a cylindrical pen housing 2.

[0035] Figure 2 This is a diagram showing a structural example of the writing input electronic pen case 3. In this implementation mode, the electronic pen case 4 constituting the electronic eraser function part has substantially the same structure as the writing input electronic pen case 3. Here, the structural example of the writing input electronic pen case 3 will be described, and the description of the structural example of the electronic pen case 4 constituting the electronic eraser function part will be omitted.

[0036] Figure 2 (A) of Figure 2 is a diagram showing the overall appearance of the writing input electronic pen case 3,

[0037] In the electronic pen case 3 of this implementation mode, as shown in Figure 2As shown in (A) and (B), it is composed of a core body 30, a magnetic core around which a coil 31 is wound, in this example, a ferrite core 32, a bracket portion 33 that holds the pen pressure detection portion 70 and holds the circuit board 80 (refer to Figure 2 of (B)), a case housing 34 that has the function of housing and protecting the pen pressure detection portion 70 and the circuit board 80 held by the bracket portion 33, and a rear end member 35 that is combined and provided on the side of the case housing 34 opposite to the core body 30 side.

[0038] In this example, the core body 30 is a thin rod-shaped member made of a relatively hard and elastic resin material, for example, POM (Polyoxymethylene: polyformaldehyde). In this example, as Figure 2 shown in (B) of, this core body 30 is configured to be inserted into a core tube member 32a that is fitted and fixed to a through hole in the ferrite core 32, and the side 30b of it opposite to the nib side 30a transmits the pen pressure to the pen pressure detection portion 70 provided on the bracket portion 33 via a pressure transmission member 37. The disc spring 38 is a resilient member for resetting to return the core body 30 to its original position when the pen pressure applied to the core body 30 disappears.

[0039] In the present embodiment, the pen pressure detection portion 70 is composed of a member (for example, refer to Patent Document (Japanese Patent Laid-Open No. 2013-161307)) that forms a variable capacitor with a semiconductor chip, and this semiconductor chip is composed of MEMS (Micro ElectroMechanical Systems, microelectromechanical systems) elements. In addition, the pen pressure detection portion 70 is not limited to a member composed of a semiconductor chip as in this example, and furthermore, it may not be a variable capacitor but a member that varies the inductance.

[0040] The bracket portion 33 is made of, for example, a resin material. As Figure 2 shown in (B) of, it has a cylindrical portion 33a that holds the pen pressure detection portion 70 and is fitted to the ferrite core 32, and a mounting table portion 33b for mounting the circuit board 80 that mounts a capacitor (not shown) that forms a resonant circuit with the coil 31.

[0041] The case housing 34 is composed of a tubular member made of a hard material, in this example, a tubular member made of metal, and constitutes a circuit portion protection member that protects the circuit constituent portions of the pen pressure detection portion 70 and the circuit board 80.

[0042] The rear end member 35 that is combined and provided on the side of the case housing 34 opposite to the core body 30 side (refer to Figure 2(A) is used to set the disc spring 36, which serves as a shock absorber (shock-absorbing component) that absorbs the impact load when an impact load (impact pressure) is applied to the core 30 side of the electronic pen case 3, thereby protecting the electronic pen case 3. In this embodiment, it also functions as a fitting portion for the fitting recess of the rotating member 51 of the later-described pressing cam mechanism portion 5. In addition, the disc spring 36 for the shock absorber is configured such that the pressure applied to the core 30 does not elastically displace within the pen pressure detection range detected by the pen pressure detection portion 70, and elastically displaces to absorb the shock when an impact load (impact pressure) greater than the pen pressure detection range is applied to the core 30. Further, the elastic force of the disc spring 36 is greater than the elastic force of the disc spring 53.

[0043] Return to Figure 1 Explanation of the electronic pen 1. In this embodiment, the writing input electronic pen case (hereinafter referred to as the writing input case) 3 is disposed in the hollow portion 2a of the pen case 2 such that the nib side including its core 30 is on the opening 2b side, which is one end side (nib side) in the axial direction of the pen case 2. Moreover, the writing input case 3 has a structure that allows the nib side including the core 30 of the writing input case 3 to enter and exit from the opening 2b side of the pen case 2 through the pressing cam mechanism portion 5.

[0044] The pressing cam mechanism portion 5 is composed of a rotating member 51, a rotating member driving portion (pressing rod) 52 that rotates and drives the rotating member 51 and moves it in the axial direction, and a disc spring 53 as an example of an elastic member that always applies a force to the rotating member 51 toward the opening 2c side at the other end side in the axial direction of the pen case 2. The rotating member driving portion 52 has a pressing portion 52KN that protrudes outward from the opening 2c at the other end side in the axial direction of the pen case 2.

[0045] Moreover, as described above, the writing input case 3 is attached to the electronic pen 1 by fitting the rear end member 35, which is integrally provided on the side of the case housing 34 opposite to the core 30 side, into the fitting recess (not shown) of the rotating member 51. And as Figure 1 in (A), (C) of Figure 2 shown in (A) of

[0046] The electronic pen case (hereinafter referred to as the eraser function case) 4 that constitutes the electronic eraser function portion is disposed in the rotating member driving portion 52 of the pressing cam mechanism portion 5 in a state where the nib side including its core 40 is on the opening 2c side at the other end side (rear end side) in the axial direction of the pen case 2. In this embodiment, as Figure 1 shown, the eraser function case 4 is housed in the rotating member driving portion 52 such that its nib portion is located within the pressing portion 52KN that protrudes from the opening 2c at the rear end side of the pen case 2.

[0047] In addition, the eraser function box 4 includes a core 40, a coil 41, a ferrite core 42, a bracket member 43, a box housing 44, a rear end member 45, and a disc spring 46 that are marked with reference symbols in the 40s section as components corresponding to the components of the writing input box 3. In addition, the eraser function box 4 also includes a pen pressure detection unit 70 and a circuit board 80 in the same manner as the writing input box 3.

[0048] Moreover, in the present embodiment, a holding mechanism unit 6 for holding the pressing portion 52KN of the rotating member driving portion 52 of the pressing cam mechanism unit 5 in a state of protruding outward from the opening 2c on the rear end side of the pen housing 2 is provided corresponding to the rotating member driving portion 52. In the present embodiment, the holding mechanism unit 6 has a structure of a pressing cam mechanism unit different from the pressing cam mechanism unit 5 (the pressing cam mechanism unit 5 is regarded as the first pressing cam mechanism unit, and hereinafter, it is referred to as the second pressing cam mechanism unit), and includes a rotating member 61 and a disc spring 62 as an example of a biasing member that always biases the rotating member 61 toward the opening 2c on the rear end side of the pen housing 2. Moreover, the rotating member driving portion that rotationally drives the rotating member 61 and moves it in the axial direction is constituted by a part of the rotating member driving portion 52 of the pressing cam mechanism unit 5. The detailed structure of the holding mechanism unit 6 and the structure of the pressing cam mechanism unit 5 will be described in detail later.

[0049] In the present embodiment, as described later, it is configured that when the pressing force during the pressing operation of the pressing portion 52KN of the rotating member driving portion 52 of the pressing cam mechanism unit 5 is equal to or less than a specified value, the pressing portion 52KN is held in a state of protruding outward from the opening 2c on the rear end side of the pen housing 2, and when the pressing force during the pressing operation of the pressing portion 52KN exceeds the specified value, the holding state is released, and the pressing cam mechanism unit 5 can be started to operate corresponding to the pressing operation of the pressing portion 52KN.

[0050] In this case, in the present embodiment, the specified value of the pressing force of the pressing operation of the pressing portion 52KN for releasing the holding of the holding mechanism unit 6 is a value larger than the normal pen pressure of the user when the pressing portion 52KN side of the electronic pen 1 approaches or contacts the position detection sensor to perform the erasing instruction of the eraser function box 4. That is, it is selected as a value at which the pressing cam mechanism unit 5 does not start to operate when the user makes the pressing portion 52KN side of the electronic pen 1 approach or contact the position detection sensor to perform the erasing instruction of the eraser function box 4. As described later, in the present embodiment, the specified value of the pressing force of the pressing operation of the pressing portion 52KN for releasing the holding of the holding mechanism unit 6 is a force larger than the elastic force of the disc spring 46 that functions as a shock absorber provided at the rear end portion 45 of the eraser function box 4.

[0051] As described above, in the present embodiment, when the writing input cartridge 3 including its nib portion is accommodated in the hollow portion 2a of the pen housing 2, and also when the nib portion of the writing input cartridge 3 projects outward from the opening 2b on the nib side of the pen housing 2, the pressing portion 52KN of the rotating member driving portion 52 of the pressing cam mechanism portion 5 is held in a state of projecting outward from the opening 2c on the rear end side of the pen housing 2, and as long as a prescribed pressing force against the elastic force of the disc spring 46 that functions as a shock absorber provided on the rear end side of the eraser function cartridge 4 is not applied to the pressing portion 52KN, its held state is maintained.

[0052] Accordingly, the pressing portion 52KN where the nib portion of the eraser function cartridge 4 is located maintains a state of projecting outward from the opening 2c on the rear end side of the pen housing 2 both before and after the pressing operation as long as the pressing force does not exceed a prescribed value, and thus, the eraser function cartridge 4 can be used with good usability.

[0053] As described above, in the present embodiment, if a pressing operation of pressing the pressing portion 52KN of the pressing cam mechanism portion 5 with a pressing force greater than the prescribed value is performed, then as will be described later, the locking and holding state of the holding mechanism portion 6 on the rotating member driving portion 52 is released, and thereby, the nib portion of the writing input cartridge 3 can be alternately presented in a state of projecting from the opening 2b on the nib side of the pen housing 2 and a state of being accommodated in the hollow portion 2a of the pen housing 2 including the nib portion of the writing input cartridge 3.

[0054] Figure 1 (A) thereof shows a state in which the entirety including the nib side of the writing input cartridge 3 is accommodated in the hollow portion 2a of the pen housing 2, Figure 1 (B) thereof is a schematic view for explaining the engagement state of the rotating member 51 with the first cam main body 21 formed on the inner wall surface of the pen housing 2 at this time. Further, Figure 1 (C) thereof shows from Figure 1 (A) thereof, after performing the above-described pressing operation on the pressing portion 52KN, and after the nib side of the electronic pen cartridge 3 projects from the opening 2b of the pen housing 2 by using the pressing cam mechanism portion 5 and then removing the pressing force on the pressing portion 52KN, Figure 1 (D) thereof is a schematic view for explaining the engagement state of the rotating member 51 with the first cam main body 21 formed inside the pen housing 2 at this time.

[0055] As Figure 1 in (B) and Figure 1As shown in (D), the first cam body 21 on the inner wall surface of the housing 2 has a plurality of protrusions 211 formed at regular intervals in the circumferential direction. In this case, the width of the protrusion 211 in the circumferential direction is equal to the formation interval of the protrusion 211. The adjacent protrusions of the plurality of protrusions 211 are grooves 212. Therefore, the first cam body 21 on the inner wall surface of the housing 2 has a structure in which a plurality of protrusions 211 and a plurality of grooves 212 are alternately formed.

[0056] On the other hand, as Figure 1 shown in (B) and Figure 1 shown in (D), the rotating member 51 of the pressing cam mechanism portion 5 is formed with a plurality of protrusions 511 on the outer circumferential surface in the circumferential direction, which are docked with the protrusions 211 of the first cam body 21 on the inner wall surface of the pen housing 2 and can enter the grooves 212. Moreover, the adjacent protrusions of the plurality of protrusions 511 are grooves 512. Therefore, the rotating member 51 has a structure in which a plurality of protrusions 511 and a plurality of grooves 512 are alternately formed.

[0057] As Figure 1 shown in (A), in a state where the entire writing input cartridge 3 including the nib side is housed in the hollow portion 2a of the pen housing 2, as Figure 1 shown in (B), the protrusions 511 of the rotating member 51 are in a state of entering the grooves 212 of the first cam body 21 on the inner wall surface of the pen housing 2.

[0058] However, when the user presses the pressing portion 52KN with a pressing force equal to or greater than a specified value from the state shown in (A) of this Figure 1 , corresponding to this pressing operation, the rotating member driving portion 52 moves the rotating member 51 in the axial direction toward the opening 2b side of the nib side of the pen housing 2. At this time, the protrusions 511 of the rotating member 51 move along the grooves 212 of the first cam body 21.

[0059] Then, after the protrusions 511 of the rotating member 51 are moved to a position where they are disengaged from the grooves 212 of the first cam body 21 by the rotating member driving portion 52, when the user removes the pressing force on the pressing portion 52KN, the rotating member 51 is urged by the elastic force of the disc spring 53 to move toward the opening 2c side of the rear end side of the pen housing 2, and through the engagement between the rotating member driving portion 52 and the rotating member 51, the rotating member 51 rotates. As Figure 1 shown in (D), the protrusions 511 of the rotating member are in a state of being docked with the protrusions 211 of the first cam body 21 and are locked in this state by the elastic force of the disc spring 53.

[0060] That is, even if the user removes the pressing force on the pressing portion 52KN, the rotating member 51 and the first cam body 21 remain Figure 1the state of (D), through the engaging state where the protrusion 511 of the rotating member 51 abuts against the protrusion 211 of the first cam body 21, the tip side of the writing input cartridge 3 becomes such that it protrudes from the opening 2b on the tip side of the pen housing 2 as Figure 1 shown in (C).

[0061] Moreover, at this time, as will be described later, through the disc spring 62 of the holding mechanism portion 6, via the rotating member 61, the driving portion 52 of the rotating member of the pressing cam mechanism portion 5 is biased toward the opening 2c on the rear end side of the pen housing 2, and through the operation of the rotating member 61 described later, the pressing portion 52KN of the driving portion 52 of the rotating member is held in a state of protruding from the opening 2c on the rear end side of the pen housing 2. Therefore, as Figure 1 shown in (C), at this time, the driving portion 52 of the rotating member and the rotating member 51 are in a state of being spatially separated in the axial direction.

[0062] Then, when the user performs a pressing operation on the pressing portion 52KN again from this state with a prescribed value (in this example, a pressing force greater than the elastic force of the disc spring 46 that functions as a shock absorber provided on the rear end side of the eraser function cartridge 4), as will be described later, the holding of the driving portion 52 of the rotating member by the holding mechanism portion 6 is released through the operation of the rotating member 61, and the driving portion 52 of the rotating member becomes a state where it can move in the axial direction.

[0063] Then, through the pressing operation of the user, when the driving portion 52 of the rotating member moves in the axial direction and the rotating member 51 displaces toward the opening 2b on the tip side of the pen housing 2 against the elastic force of the disc spring 53, the rotating member 51 rotates, and the engagement between its protrusion 511 and the protrusion 211 of the first cam body 21 is released. Then, when the pressing force of the user on the pressing portion 52KN is removed, the protrusion 511 of the rotating member 51 reaches a position where it is inserted into the groove 212 of the first cam body 21, and through the elastic force of the disc spring 53, the rotating member 51 moves toward the opening 2c on the rear end side of the pen housing 2 and returns to Figure 1 the state shown in (A).

[0064] At this time, as will be described later, the holding mechanism portion 6 performs the same operation as when transferring from Figure 1 the state of (A) to Figure 1 the state of (C), and returns to the state where the pressing portion 52KN of the driving portion 52 of the rotating member is held in a state of protruding from the opening 2c on the rear end side of the pen housing 2.

[0065] In addition, although in Figure 1The illustration is omitted. Similar to the push cam mechanism portion of a known push-type ballpoint pen, on the circumferential surface of the engaging side of the rotating member driving portion 52 that engages with the rotating member 51, there are protrusions that slide into the groove 212 of the cam main body 21 that enters the pen housing 2, and it is configured such that the rotating member driving portion 52 does not fall off from the opening 2c on the rear end side of the pen housing 2 by engaging the protrusions of the rotating member driving portion 52 with the end portion 212a (refer to Figure 1 (B) and (D)) of the groove 212 of the cam main body 21 on the inner wall surface of the pen housing 2.

[0066] [Description of the holding mechanism portion 6]

[0067] Next, with reference to Figures 3 to 6 , a structural example of the holding mechanism portion 6 of the push-type electronic pen 1 of the present embodiment will be described.

[0068] Figure 3 (A) of Figure 3 is a cross-sectional view for explaining the structure of the rotating member driving portion 52 and the holding mechanism portion 6 of the push cam mechanism portion 5 of the push-type electronic pen 1 of the present embodiment. Additionally, Figure 3 (B) of

[0069] is a cross-section at the X-X line position of Figure 3 (A) of Figure 1 (A) of the pen housing 2, and is a diagram for explaining the structure of the second cam main body 22 described later.

[0070] As shown in

[0071] (A) and Figure 3 (A) and Figure 1 (A), (C) of

[0072] In the present embodiment, the rotating member driving portion 52 of the push cam mechanism portion 5 is made of resin and is composed of a first portion 521 and a second portion 522 joined in the axial direction. Figure 3and (A) of Figure 1 As shown in (A) and (C) of, the front-end opening of the portion of the second part 522 that becomes the pressing part 52KN is closed by the cover member 54. In the present embodiment, the cover member 54 is made of, for example, elastic rubber that is a physical rubber. Of course, the cover member 54 may be made of a member that becomes a pseudo-rubber (preferably an elastic member) instead of an elastic rubber that becomes a physical rubber.

[0073] Moreover, in the present embodiment, as Figure 3 shown in (A) of, protrusions 521c and 521d that protrude in a direction orthogonal to the axial direction are provided at positions on the outer peripheral side surface of the rear end side of the first part 521 that are separated by an angular interval of 180 degrees. In addition, in the second part 522, window portions 522c and 522d are formed for the protrusions 521c and 521d of the first part to enter. In this case, the lengths of the window portions 522c and 522d of the second part 522 in the axial direction are configured to be longer than the lengths of the protrusions 521c and 521d of the first part 521 in the axial direction.

[0074] The first part 521 is inserted from the rear end side of the second part 522, and is combined with the second part 522 in a state where the protrusions 521c and 521d enter the window portions 522c and 522d. In this combined state, since the lengths of the window portions 522c and 522d of the second part 522 in the axial direction are longer than the lengths of the protrusions 521c and 521d of the first part 521 in the axial direction, the second part 522 can move a corresponding amount in the axial direction relative to the first part 521.

[0075] Moreover, as Figure 3 shown in (A) and Figure 1 shown in (A) and (C) of, in a state where the first part 521 is combined with the second part 522, a communication space in which the concave hole 521a constituting the first part 521 communicates with the hollow portion 522a of the cylindrical second part is formed, and this communication space constitutes the hollow portion of the rotating member driving part 52. And, as Figure 3 shown in (A) and Figure 1 shown in (A) and (C) of, the rubber function box 4 is housed in the hollow portion of the communication space of the rotating member driving part 52 in such a manner that the nib side including the core body 40 of the rubber function box 4 is located inside the hollow portion of the pressing part 52KN.

[0076] In this case, at the rear end portion 45 of the rubber function box 4, a disc spring 46 that functions as a shock absorber is provided between the bottom of the concave hole 521a of the first part 521 of the rotating member driving part 52 and the box housing 44 of the rubber function box 4, and the front end side of the core body 40 of the rubber function box 4 is biased by the elastic force of the disc spring 46 so as to always contact the cover member 54 of the pressing part 52KN.

[0077] Further, in the present embodiment, the holding mechanism portion 6 is configured to hold the pressing portion 52KN in a state of protruding outward from the opening 2c on the rear end side of the pen housing 2 by forming a second pressing cam mechanism portion, and this holding state is maintained as long as a specified pressing force that counteracts the elastic force of the disc spring 46 acting as a shock absorber provided on the rear end side of the eraser function box 4 is not applied to the pressing portion 52KN.

[0078] In this case, the second pressing cam mechanism portion is composed of a rotating member 61, a return disc spring 62, a second cam main body 22 formed on the inner wall surface of the pen housing 2, a second portion 522 of the rotating member driving portion 52 that constitutes a rotating member driving portion for moving the rotating member 61 in the axial direction and driving its rotation, and the disc spring 46.

[0079] In the present embodiment, as shown in (A) of Figure 3 and (A) and (C) of Figure 1 it is configured such that the end edge on the coupling side where the second portion 522 of the rotating member driving portion 52 is coupled to the first portion 521 abuts against the rotating member 61 of the holding mechanism portion 6, causing the rotating member 61 to move in the axial direction and rotate against the elastic force of the disc spring 62.

[0080] Further, as shown in (A) of Figure 3 and (A) and (C) of Figure 1 a second cam main body 22 is formed at a position on the inner wall surface of the pen housing 2 that faces the circumferential surface of the first portion 521 of the rotating member driving portion 52. The second cam main body 22 is configured to present a state of engaging with the rotating member 61 and locking the rotating member 61 as shown in (A) of Figure 3 and (A) and (C) of Figure 1 and a state in which the rotating member 61 can move in the axial direction together with the rotating member driving portion 52.

[0081] As shown in the cross-sectional view taken along the horizontal direction of (B) of Figure 3 the second cam main body 22 is configured such that a plurality of, in this example, three protrusions 221 protruding from the inner peripheral wall surface of the pen housing 2 with a radius r1 into the hollow portion are formed at equal angular intervals in the circumferential direction, and three grooves 222 are formed between adjacent protrusions 221 among the three protrusions 221. In this example, the angular range width W1 of the groove 222 is configured to be an angular range width slightly larger than 60 degrees, for example, 63 degrees.

[0082] In addition, as shown in Figure 3As shown in (B), the front ends of the three protrusions 221 of the second cam body 22 are formed on a circumference with a radius r2 (<r1) slightly larger than the radius of the outer circumference of the first part 521 of the rotating member driving part 52. Therefore, the first part 521 of the rotating member driving part 52 does not contact the front ends of the three protrusions 221 of the second cam body 22 and can move in the axial direction.

[0083] Next, with reference to Figures 4 to 6 the structure of the rotating member 61 of the second pressing cam mechanism part of the present embodiment will be described. The rotating member 61 of the second pressing cam mechanism part of the present embodiment is configured by combining a ring-shaped member 611 as shown in Figure 4 and a leg member 612 as shown in Figure 5 to form the structure shown in Figure 6 .

[0084] Figure 4 Fig. (A) is a view of the ring-shaped member 611 observed from the side opposite to the engagement side that engages with the end 522b of the second part 522 of the rotating member driving part 52 in the axial direction. In addition, Figure 4 Fig. (B) is a side view of the ring-shaped member 611 observed from a direction orthogonal to the axial direction. As shown in Figure 4 Fig. (A), the radius of the inner peripheral wall surface of the ring-shaped member 611 is a radius r2 slightly larger than the radius of the outer circumference of the first part 521 of the rotating member driving part 52. In addition, as shown in Figure 4 Fig. (A), the radius of the outer peripheral side surface of the ring-shaped member 611 is a radius r3 slightly smaller than the radius r1 of the inner peripheral wall surface of the pen case 2.

[0085] Moreover, as shown in Figure 4 Fig. (A), three grooves 611b, 611c, and 611d are formed on the inner peripheral wall surface of the ring-shaped member 611. The three grooves 611b, 611c, and 611d are formed in the axial direction with a specified angular range width W2 narrower than the angular range width W1 of the groove 222 of the second cam body 22. In this example, W2 = 60 degrees. As shown in Figure 4 Fig. (A), the wall surfaces (bottom surfaces of the grooves) of the three grooves 611b, 611c, and 611d are formed on a circumference with a radius r4 (r2 < r4 < r3).

[0086] In addition, in this example, on the engagement side of the ring-shaped member 611 that engages with the end 522b of the second part 522 of the rotating member driving part 52, as shown in Figure 4 Fig. (B), uneven portions 611a for rotating the rotating member 61 are formed. In addition, the uneven portions 611a are formed in the thickness portion in the range from the radius r4 to the radius r3.

[0087] As shown inFigure 5 As shown, the leg member 612 is configured such that, on a cylindrical body with an outer peripheral side surface radius of radius r4 and an inner peripheral wall surface radius of radius r2, grooves are formed in a slit shape so as to form three legs 612b, 612c, and 612d with an angular range width W2. In other words, it is configured such that the three legs 612b, 612c, and 612d are formed upright in the axial direction from one end surface of the annular plate portion 612a.

[0088] Moreover, from Figure 4 the uneven portion 611a side of the annular member 611 shown, for Figure 5 the leg member 612 shown, the three legs 612b, 612c, and 612d are inserted into the three grooves 611b, 611c, and 611d of the annular member 611. Thus, the rotating member 61 shown in Figure 6 (A) and (B) is formed. Figure 6 (A) of Figure 6 is a view of the rotating member 61 observed from the side opposite to the uneven portion 611a side of the annular member 611 in the axial direction. In addition,

[0089] As Figure 6 (A) and (B) of this Figure 6 show, the rotating member 61 has a shape in which the three legs 612b, 612c, and 612d of the leg member 612 protrude on the side opposite to the uneven portion 611a of the annular member 611. In this case, as

[0090] shown in Figure 3 (A) and Figure 1 (A), (C) of this

[0091] Moreover, as Figure 3As shown in (A) thereof, the disc spring 62 is disposed between the three protrusions 221 of the second cam main body 22 on the inner wall surface of the pen housing 2 and the protruding portions 611e of the annular member 611 of the rotating member 61. Thus, by the elastic force of the disc spring 62, the rotating member 61 is always biased toward the opening 2c on the rear end side of the pen housing 2, and is maintained in a state where the concave-convex portion 611a side of the rotating member 61 is always engaged with the edge of the second portion 522 of the rotating member driving portion 52.

[0092] Next, the operation of the holding mechanism portion 6 configured as described above will be described. When Figure 1 the entire writing input cartridge 3 including the nib portion as shown in (A) thereof is housed in the hollow portion of the pen housing 2, the front ends of the three legs 62b, 612c, and 612d of the rotating member 61 are in contact with the front ends of the three protrusions 221 of the second cam main body 22 on the inner wall surface of the pen housing 2 (position closer to the front end side than the position shown by the dotted line in (B) thereof). Figure 3 Thus, the rotating member driving portion 52 of the pressing cam mechanism portion 5 holds the pressing portion 52KN in a state of protruding from the opening 2c on the rear end side of the pen housing 2, and this holding state is maintained as long as a specified pressing force that counteracts the elastic force of the disc spring 46 acting as a shock absorber provided on the rear end side of the eraser function cartridge 4 is not applied.

[0093] In this state, when the user presses the pressing portion 52KN with a pressing force that overcomes the elastic force of the disc spring 46 acting as a shock absorber, the second portion 522 of the rotating member driving portion 52 moves in the axial direction relative to the first portion 521.

[0094] Due to the axial movement of the second portion 522 of the rotating member driving portion 52, the rotating member 61 of the holding mechanism portion 6 rotates, and the three legs 612b, 612c, and 612d of the rotating member 61 enter the three grooves 222 of the second cam main body 22 on the inner wall surface of the pen housing 2, releasing the holding of the rotating member driving portion 52 by the holding mechanism portion 6. Therefore, by the pressing force of the user on the pressing portion 52KN, the first portion 521 and the second portion 522 of the rotating member driving portion 52 become integrated and move in the axial direction, starting the operation of the pressing cam mechanism portion 5 described above, and the nib portion of the writing input cartridge 3 protrudes from the opening 2b on the nib side of the pen housing 2.

[0095] In this state, when the user stops pressing the pressing portion 52KN and removes the pressing force, as described above, the rotating member 51 of the pressing cam mechanism portion 5 and the first cam main body 21 on the inner wall surface of the pen housing 2 are engaged in the state of (D) thereof, whereby the nib portion of the writing input cartridge 3 is held in a state of protruding from the opening 2b on the nib side of the pen housing 2. Figure 1 ​

[0096] Also, at this time, by the coil spring 62 of the holding mechanism portion 6, the second portion 522 of the rotating member driving portion 52 is elastically biased toward the opening 2c on the rear end side of the pen housing 2. As described above, the rotating member driving portion 52 moves to a position where a protrusion (not shown) on the side surface portion at the front end of the first portion 521 engages with the end portion 212a of the groove 212 of the first cam body 21 (refer to Figure 1 (B) and (D) of Figure 3 . Moreover, due to the movement of the rotating member driving portion 52 toward the opening 2c on the rear end side of the pen housing 2 by the coil spring 62, when the three legs 612b, 612c, and 612d of the rotating member 61 of the holding mechanism portion 6 are out of the groove 222 of the second cam body 22 on the inner wall surface of the pen housing 2, the rotating member 61 of the holding mechanism portion 6 rotates, and the front end portions of the three legs 612b, 612c, and 612d of the rotating member 61 return to a state of butting against the front end portions of the three protrusions 221 of the second cam body 22 on the inner wall surface of the pen housing 2 (a position closer to the front end side than the position shown by the dashed line in

[0097] Thus, as shown in Figure 1 (C) of

[0098] , even when the nib portion of the writing input cartridge 3 protrudes from the opening 2b on the nib side of the pen housing 2, the rotating member driving portion 52 is held in a state where its pressing portion 52KN protrudes from the opening 2c on the rear end side of the pen housing 2, and this holding state is maintained without applying a specified pressing force of the coil spring 46 that mainly functions as a shock absorber for protecting the eraser function cartridge 4 to the pressing portion 52KN.

[0099] That is, Figure 1 the engagement between the rotating member 51 in the state of Figure 1 (D) and the protrusion 211 of the first cam body 21 on the inner wall surface of the pen housing 2 is released, and by the return spring 53, it returns to the state shown in

[0100] Moreover, at this time, similarly to the state where it protrudes from the opening 2b on the nib side of the writing input cartridge 3, the second part 522 of the rotator drive part 52 is elastically biased toward the opening 2c on the rear end side of the pen housing 2 by the disc spring 62 of the holding mechanism part 6. As described above, the rotator drive part 52 moves to a position where a protrusion (not shown) on the side surface at the front end of the first part 521 engages with the end 212a of the groove 212 of the first cam body 21 (refer to Figure 1 (B) and (D) of). Moreover, the movement of the rotator drive part 52 toward the opening 2c on the rear end side of the pen housing 2 by this disc spring 62 causes the rotator 61 of the holding mechanism part 6 to rotate when the three legs 612b, 612c, and 612d of the rotator 61 of the holding mechanism part 6 are out of the groove 222 of the second cam body 22 on the inner wall surface of the pen housing 2, and the front ends of the three legs 612b, 612c, and 612d of the rotator 61 become the front ends of the three protrusions 221 of the second cam body 22 on the inner wall surface of the pen housing 2 (compared to Figure 3 (B) of the position shown by the dotted line is closer to the front end side).

[0101] In this way, as shown in Figure 1 (A) of, even in the state where the nib part of the writing input cartridge 3 is accommodated in the hollow part 2a of the pen housing 2, the rotator drive part 52 is held in a state where its pressing part 52KN protrudes from the opening 2c on the rear end side of the pen housing 2, and this holding state is maintained without applying a prescribed pressing force that counteracts the positive pressure and acts as a shock absorber for the disc spring 46 of the eraser function cartridge 4 to the pressing part 52KN.

[0102] [Regarding the position detection device that cooperates with the push-type electronic pen 1 of the present embodiment]

[0103] Refer to Figure 7 The structure and operation of the position detection device that cooperates with the push-type electronic pen 1 of the present embodiment will be described.

[0104] As described above, the push-type electronic pen 1 of the present embodiment includes a writing input cartridge 3 and an eraser function cartridge 4 as position indicating parts. As Figure 7 shown, as an electronic circuit structure, the writing input cartridge 3 includes a coil 31, a capacitor 39, and a resonance circuit 3RC formed by connecting in parallel a variable capacitor 71C that constitutes a pen pressure detection part. In addition, the eraser function cartridge 4 includes a coil 41, a capacitor 49, and a resonance circuit 4RC formed by connecting in parallel a variable capacitor 72C that constitutes a pen pressure detection part. In this case, it is configured such that the resonance frequency f1 of the resonance circuit 3RC and the resonance frequency f2 of the resonance circuit 4RC are different.

[0105] The position detection device is composed of a position detection sensor 100 and a position detection circuit 200. The position detection sensor 100 is configured such that an X-axis direction loop coil group 102X and a Y-axis direction loop coil group 103Y are formed on a sensor substrate 101.

[0106] The X-axis direction loop coil group 102X is composed of n (n is an integer of 2 or more) loop coils 102X1 to 102X n arranged in the lateral direction (e.g., the X-axis direction of the position coordinates) of the sensor substrate 101. In addition, the Y-axis direction loop coil group 103Y is composed of m (m is an integer of 2 or more) loop coils 103Y1 to 103Y m arranged in the longitudinal direction (e.g., the Y-axis direction of the position coordinates) of the sensor substrate 101.

[0107] The position detection sensor 100 is connected to the position detection circuit 200. In Figure 7 this example, the position detection circuit 200 is configured to include a selection circuit 201, an oscillator 202, a current driver 203, a transmit-receive switching circuit 204, a receive amplifier 205, a band-pass filter 206 having a pass center frequency of f1, a band-pass filter 207 having a pass center frequency of f2, a writing position detection circuit 208, an erasing position detection circuit 209, and a processing control unit 210.

[0108] The selection circuit 201 sequentially selects one loop coil from the X-axis direction loop coil group 102X and the Y-axis direction loop coil group 103Y, and sends a signal through the selected loop coil to the writing input case 3 or the eraser function case 4 of the push-type electronic pen 1, and receives the signal returned from the writing input case 3 or the eraser function case 4.

[0109] The transmit-receive switching circuit 204 controlled by switching by the processing control unit 210 is connected to the selection circuit 201. When the transmit-receive switching circuit 204 is connected to the transmit side terminal T, an AC signal is supplied from the oscillator 202 to the selection circuit 201. When connected to the receive side terminal R, the signal from the selection circuit 201 is supplied to the band-pass filters 206 and 207 through the receive amplifier 205.

[0110] The band-pass filter 206 extracts only the return signal from the resonance circuit 3RC of the writing input case 3 and supplies it to the writing position detection circuit 208. In addition, the band-pass filter 207 extracts only the return signal from the resonance circuit 4RC of the eraser function case 4 and supplies it to the erasing position detection circuit 209.

[0111] The writing position detection circuit 208 and the erasing position detection circuit 209 detect the induced voltage generated in the toroidal coil of the position detection sensor 100, that is, the received signal, demodulate the detected output signal, convert the demodulated output signal into a digital signal, and output it to the processing control unit 210.

[0112] The processing control unit 210 calculates the X coordinate value and the Y coordinate value of the indicated position of the tip of the writing input cartridge 3 as the writing input position based on the digital signal from the writing position detection circuit 208, that is, the level of the voltage value of the induced voltage generated in each toroidal coil. The processing control unit 210 also calculates the X coordinate value and the Y coordinate value of the indicated position of the tip of the eraser function cartridge 4 as the erasing position based on the digital signal from the erasing position detection circuit 209, that is, the level of the voltage value of the induced voltage generated in each toroidal coil.

[0113] [Effect of the push-type electronic pen according to the embodiment]

[0114] As described above, according to the push-type electronic pen of the embodiment, when the push portion 52KN is pushed and the tip of the writing input cartridge 3 protrudes from the tip-side opening 2b of the pen housing 2 through the push cam mechanism portion 5, the push portion 52KN is also held in a state of protruding from the rear-end side opening 2c of the pen housing 2 by the holding mechanism portion 6, and as long as a prescribed pressing force that counteracts the elastic force of the disc spring 46 that functions as a shock absorber for protecting the eraser function cartridge 4 is not applied to the push portion 52KN, this holding state is maintained.

[0115] Therefore, in order to correct a writing input, a user who has performed a writing input with the tip of the writing input cartridge 3 turns the pen housing 2 upside down, brings the push portion 52KN side protruding from the opening 2c closer to the position detection sensor 100, and can stabilize the erasing indication with a normal pen pressure.

[0116] In addition, in the present embodiment, even when the tip of the writing input cartridge 3 is included and housed in the hollow portion of the pen housing 2, the push portion 52KN is held in a state of protruding from the rear-end side opening 2c of the pen housing 2, and this holding state is maintained as long as a prescribed pressing force that counteracts the elastic force of the disc spring 46 that functions as a shock absorber for protecting the eraser function cartridge 4 is not applied to the push portion 52KN.

[0117] Therefore, even in a state where the tip of the writing input cartridge 3 does not protrude from the tip-side opening 2b of the pen housing 2, the user can bring the push portion 52KN side protruding from the rear-end side opening 2c of the pen housing 2 closer to the position detection sensor 100 and stabilize the erasing indication with a normal pen pressure.

[0118] [Other embodiments or modification examples]

[0119] In addition, in the above-described embodiment, both the first position indicating portion and the second position indicating portion are configured as an electronic pen case, but it is not essential to be configured as such a case. It is sufficient if it is configured to be able to present a state in which the nib portion protrudes from the opening of the pen housing and a state in which it is housed in the hollow portion of the pen housing by depressing the cam mechanism.

[0120] Further, in the above-described embodiment, the holding mechanism portion is configured to apply a depressing cam mechanism, but any structure may be used as long as the depressing portion is held in a state of always protruding from the opening on the rear end side of the pen housing.

[0121] In addition, in the above-described embodiment, the first position indicating portion is used for writing input, and the second position indicating portion is used for erasing indication of the information written and input by the first position indicating portion, but the example is not limited thereto. For example, it may be configured such that the first position indicating portion is constituted by a capacitive position indicating portion, and the second position indicating portion is used for writing input in a different manner as an electromagnetic induction type position indicating portion. In this case, the depressing portion that houses the nib portion of the second position indicating portion can be detached from the rotating member driving portion of the depressing cam mechanism portion, and the nib side of the second position indicating portion can be exposed to the outside and protrude from the opening on the rear end side of the pen housing.

[0122] Reference Numeral Explanation

[0123] 1... Depressing type electronic pen, 2... Pen housing, 3... Electronic pen case for writing input, 4... Electronic pen case for eraser function, 5... Depressing cam mechanism portion, 6... Holding mechanism portion, 21... First cam body, 22... Second cam body, 51... Rotating member of the depressing cam mechanism portion 5, 52... Rotating member driving portion of the depressing cam mechanism portion 5, 52KN... Depressing portion, 53... Return spring of the depressing cam mechanism portion 5, 61... Rotating member of a different depressing cam mechanism portion constituting the holding mechanism portion 6, 62... Return spring of a different depressing cam mechanism portion constituting the holding mechanism portion 6, 521... First portion of the rotating member driving portion 51, 522... Second portion of the rotating member driving portion 52.

Claims

1. A pressing type electronic pen, characterized in that, Comprising: A cylindrical housing; A first position indicating portion, arranged in a state where the opening side at one end in the axial direction of the cylindrical housing becomes the front end side for position indication; A second position indicating portion, arranged in a state where the opening side at the other end in the axial direction of the cylindrical housing becomes the front end side for position indication; and A pressing cam mechanism portion, having a pressing portion which has a part protruding outward from the opening at the other end in the axial direction of the cylindrical housing. By pressing the pressing portion, at least the core of the front end portion of the first position indicating portion is made to protrude from the opening at the one end side of the cylindrical housing, and the first position indicating portion including the front end portion is also received in the housing; The second position indicating portion is received in the pressing cam mechanism portion in a state where at least the core side of the front end portion is received in the part of the pressing portion protruding outward from the opening at the other end side of the housing; The pressing type electronic pen is provided with a holding mechanism portion. When at least the core of the first position indicating portion protrudes from the opening at the one end side of the cylindrical housing by pressing the pressing portion, the holding mechanism portion restores the pressing portion pressed into the housing by the pressing operation to a state of protruding outward from the opening at the other end in the axial direction of the cylindrical housing and holds the pressing portion.

2. The pressing type electronic pen according to claim 1, characterized in that: When the pressing force during the pressing operation of the pressing portion is below a specified value, the holding mechanism portion holds the pressing portion in a state of protruding outward from the opening at the other end in the axial direction of the cylindrical housing. When the pressing force during the pressing operation of the pressing portion exceeds the specified value, the holding mechanism portion releases the holding state and starts the operation of the pressing cam mechanism portion.

3. The pressing type electronic pen according to claim 1, characterized in that: The holding mechanism portion is constituted by a pressing cam mechanism portion which is different from the pressing cam mechanism portion and operates by the pressing operation of the pressing portion.

4. The pressing type electronic pen according to claim 2, characterized in that: Even in a state where the first position indicating portion including the front end portion is received in the housing, the holding mechanism portion holds the pressing portion of the pressing cam mechanism portion in a state of protruding outward from the opening at the other end in the axial direction of the cylindrical housing.

5. The pressing type electronic pen according to claim 1, characterized in that: The pressing cam mechanism portion includes: a rotating member, engaged with the rear end side of the first position indicating portion opposite to the front end portion; and a rotating member driving portion, moving in the axial direction corresponding to the pressing operation of the pressing portion and rotating the rotating member corresponding to the pressing operation, The second position indicating portion is arranged in the hollow portion in the axial direction of the rotating member driving portion. The holding mechanism portion includes a biasing member that always elastically biases the rotating member driving portion toward the other end side in the axial direction of the housing.

6. The pressing type electronic pen according to claim 5, wherein the second position indicating portion is always elastically biased toward the other end side in the axial direction of the housing by an elastic member within the hollow portion of the rotating member driving portion.

7. The pressing type electronic pen according to claim 6, wherein the rotating member driving portion includes a first portion and a second portion, and the first portion and the second portion are joined in the axial direction in a state where they can move in the axial direction against the acting force of the elastic member. the hollow portion of the rotating member driving portion is formed by a hollow portion that communicates the first portion and the second portion joined in the axial direction. the axial end portion of the first portion on the side opposite to the joining side with the second portion is configured to engage with the rotating member to rotate the rotating member, and the axial end portion of the second portion on the side opposite to the joining side with the first portion is provided as the pressing portion that protrudes outward from the opening on the other end side in the axial direction of the housing. When the pressing force during the pressing operation of the pressing portion is equal to or less than the elastic force of the elastic member, the holding mechanism portion holds the pressing portion in a state of protruding outward from the opening on the other end side in the axial direction of the cylindrical housing. When the pressing force during the pressing operation of the pressing portion exceeds the elastic force of the elastic member, the holding mechanism portion releases the holding state and starts the operation of the pressing cam mechanism portion.

8. The pressing type electronic pen according to claim 7, wherein the holding mechanism portion is constituted by a pressing cam mechanism portion that is different from the pressing cam mechanism portion and operates by the pressing operation of the pressing portion. the rotating member of the different pressing cam mechanism portion is configured to be slidably disposed on the outer peripheral side of the first portion and engage with the edge of the joining side of the second portion with the first portion, and rotates under the axial pressing force corresponding to the pressing operation of the pressing portion of the second portion. When the pressing force during the pressing operation of the pressing portion is equal to or less than the elastic force of the elastic member, the rotating member of the different pressing cam mechanism portion holds the pressing portion whose axial movement is blocked in a state of protruding outward from the opening on the other end side in the axial direction of the cylindrical housing. When the pressing force during the pressing operation of the pressing portion exceeds the elastic force of the elastic member, the rotating member of the different pressing cam mechanism portion rotates to release the blockage of the axial movement and starts the operation of the pressing cam mechanism portion.

9. The pressing type electronic pen according to claim 8, wherein the biasing member always elastically biases the rotating member driving portion toward the other end side in the axial direction of the housing via the rotating member of the different pressing cam mechanism portion.

10. The pressing type electronic pen according to claim 8, characterized in that the rotating members of the different pressing cam mechanism parts are provided with a plurality of first protrusions arranged at regular intervals in the circumferential direction, a plurality of second protrusions are formed in the circumferential direction on the inner wall surface of the housing, and the plurality of second protrusions engage with the plurality of first protrusions of the rotating members of the different pressing cam mechanism parts, when the pressing force during the pressing operation of the pressing part is less than or equal to the elastic force of the elastic member, the first protrusions of the rotating members of the different pressing cam mechanism parts are butted against the second protrusions on the inner wall surface of the housing, and the pressing part is held in a state of protruding outward from the opening on the other end side in the axial direction of the cylindrical housing, when the pressing force during the pressing operation of the pressing part exceeds the elastic force of the elastic member, the rotating members of the different pressing cam mechanism parts rotate, and a state is formed in which the first protrusions of the rotating members of the different pressing cam mechanism parts are not butted against the second protrusions on the inner wall surface of the housing, thereby releasing the held state, and the rotating member driving part and the rotating members of the different pressing cam mechanism parts move together toward the opening side on the one end side of the housing.

11. The pressing type electronic pen according to claim 10, characterized in that the biasing member is disposed between the second protrusion of the housing and the rotating member of the different pressing cam mechanism part.

12. The pressing type electronic pen according to claim 1, characterized in that the first position indicating part and the second position indicating part are configured as an electronic pen case.

13. The pressing type electronic pen according to claim 1, characterized in that the first position indicating part and the second position indicating part are position indicating parts of an electromagnetic induction type.

14. The pressing type electronic pen according to claim 12, characterized in that the first position indicating part and the second position indicating part are set to be different from each other in any one of the frequency, signal mode, and modulation method of the signal that interacts with the position detection sensor.

15. The pressing type electronic pen according to claim 1, characterized in that a rubber or pseudo-rubber is mounted on the front end of the portion of the pressing part that protrudes outward from the opening on the other end side in the axial direction of the cylindrical housing.

16. The pressing type electronic pen according to claim 1, characterized in that the first position indicating part is configured as a capacitance type position indicating part, and the second position indicating part is configured as an electromagnetic induction type position indicating part.

Images