Electronic pen, electronic pen cartridge, and electronic pen main unit

Patent metadata

Field	Value
Publication number	US-11809644-B2
Application number	US-202117408186-A
Country	US
Kind code	B2
Filing date	Aug 20, 2021
Priority date	Mar 13, 2019
Publication date	Nov 7, 2023
Grant date	Nov 7, 2023

Abstract

An electronic pen cartridge is mounted on a mounting part disposed in a pen-shaped casing. The electronic pen cartridge includes an electronic pen main unit and a mounting adapter. The electronic pen main unit includes a first coupling part configured to connect the mounting adapter to the electronic pen main unit in an axial center direction. The mounting adapter includes a second coupling part connected to the first coupling part of the electronic pen main unit, a third coupling part connected to the mounting part of the casing, and an elastic component that causes an elastic force to act between the mounting adapter and the electronic pen main unit in a connected state in which the second coupling part is connected to the first coupling part of the electronic pen main unit.

First claim

The invention claimed is:

1. An electronic pen cartridge, configured to be mounted on a mounting part disposed in a pen-shaped casing, the electronic pen cartridge comprising:
an electronic pen main unit that includes an interaction part configured to perform transmission and reception of signals with a position detecting sensor and that includes a tip part configured to be capable of protruding outside from one opening part of the casing; and
a mounting adapter interposed between the electronic pen main unit and the mounting part,
wherein
the electronic pen main unit includes, at an end part of the electronic pen main unit that is opposite to the tip part in an axial center direction, a first coupling part configured to connect the mounting adapter to the electronic pen main unit in the axial center direction, and
the mounting adapter includes:
at a first end part of the mounting adapter in the axial center direction, a second coupling part configured to be detachably connectable to the first coupling part of the electronic pen main unit,
at a second end part of the mounting adapter in the axial center direction, a third coupling part configured to be detachably connectable to the mounting part of the casing, and
an elastic component that, in a connected state in which the second coupling part is connected to the first coupling part of the electronic pen main unit, causes an elastic force to act between the mounting adapter and the electronic pen main unit, the elastic force being exerted to separate the mounting adapter from the electronic pen main unit in the axial center direction, the elastic component coupled to the mounting adapter to be detachably connectable, together with the mounting adapter, to the mounting part of the casing, wherein the elastic component is different from a writing pressure detector coil spring included in the electronic pen main unit and serves as a shock absorber against a shock load applied along an axial direction of the electronic pen cartridge.

2. The electronic pen cartridge according to claim 1 , wherein the casing is a casing of a writing implement.

3. The electronic pen cartridge according to claim 2 , wherein a length of the electronic pen main unit in the axial center direction is set to a predetermined length, and a length of the mounting adapter in the axial center direction is changed according to the casing of the writing implement with the mounting adapter housed in the casing and mounted on the mounting part.

4. The electronic pen cartridge according to claim 2 , wherein the third coupling part of the mounting adapter has a configuration based on a configuration of the mounting part of the casing of the writing implement with the mounting adapter housed in the casing and mounted on the mounting part.

5. The electronic pen cartridge according to claim 1 , wherein the second coupling part of the mounting adapter is provided at an end part of a rod-shaped component, the elastic component is a second coil spring, and the second coil spring is disposed around the rod-shaped component in a state of being elastically displaceable in an axial center direction of the rod-shaped component.

6. The electronic pen cartridge according to claim 5 , wherein the rod-shaped component includes a resin having elasticity that allows bending also in a direction intersecting the axial center direction.

7. The electronic pen cartridge according to claim 1 , wherein the first coupling part of the electronic pen main unit is connected to the second coupling part of the mounting adapter in a state of being displaceable to a side of the mounting adapter in the axial center direction against the elastic force of the elastic component, and the elastic component of the mounting adapter serves as the shock absorber when the shock load is applied to a side of the tip part of the electronic pen main unit.

8. The electronic pen cartridge according to claim 7 , wherein
the electronic pen main unit includes a writing pressure detector that detects a pressure applied to the tip part of the electronic pen main unit in the axial center direction, and
the elastic component of the mounting adapter is configured in such a manner as not to be elastically displaced within a range of the pressure in the axial center direction that is to be detected by the writing pressure detector, and as to be elastically displaced when a pressure exceeding the range of the pressure in the axial center direction that is to be detected by the writing pressure detector is received.

9. The electronic pen cartridge according to claim 8 , wherein the writing pressure detector has a micro-electro-mechanical system (MEMS) that detects the pressure applied to the tip part of the electronic pen main unit in the axial center direction, as a capacitance based on the pressure.

10. The electronic pen cartridge according to claim 1 , wherein the interaction part includes a resonant circuit including a coil and a capacitor and performs transmission and reception of signals by making an electromagnetic coupling with the position detecting sensor.

11. The electronic pen cartridge according to claim 1 , wherein the interaction part performs transmission and reception of signals by making a capacitive coupling with the position detecting sensor.

12. The electronic pen cartridge according to claim 1 , wherein the second coupling part of the mounting adapter includes a first projection or a first hole, and the first coupling part of the electronic pen main unit includes a second hole or a second projection, the first projection configured to be detachably received in the second hole, or the second projection configured to be detachably received in the first hole.

13. An electronic pen, in which an electronic pen cartridge is mounted on a mounting part disposed in a pen-shaped casing, the electronic pen cartridge including:
an electronic pen main unit that includes an interaction part configured to perform transmission and reception of signals with a position detecting sensor and that includes a tip part configured to be capable of protruding outside from one opening part of the casing, and
a mounting adapter interposed between the electronic pen main unit and the mounting part,
wherein
the electronic pen main unit includes, at an end part of the electronic pen main unit that is opposite to the tip part in an axial center direction, a first coupling part configured to connect the mounting adapter to the electronic pen main unit, and
the mounting adapter includes:
at a first end part of the mounting adapter in the axial center direction, a second coupling part configured to be detachably connectable to the first coupling part of the electronic pen main unit,
at a second end part of the mounting adapter in the axial center direction, a third coupling part configured to be detachably connectable to the mounting part of the casing, and
an elastic component that, in a connected state in which the second coupling part is connected to the first coupling part of the electronic pen main unit, causes an elastic force to act between the mounting adapter and the electronic pen main unit, the elastic force being exerted to separate the mounting adapter from the electronic pen main unit in the axial center direction, the elastic component coupled to the mounting adapter to be detachably connectable, together with the mounting adapter, to the mounting part of the casing, wherein the elastic component is different from a writing pressure detector coil spring included in the electronic pen main unit and serves as a shock absorber against a shock load applied along an axial direction of the electronic pe

Assignees

• Wacom Co Ltd

Inventors

• KAMIYAMA Ryoji

Classifications

• G06F3/03545 Primary

  Pens or stylus · CPC title

• G06F3/0383

  Signal control means within the pointing device · CPC title

• G06F3/044

  by capacitive means · CPC title

• G06F3/046

  by electromagnetic means · CPC title

• G06F2203/04105

  Pressure sensors for measuring the pressure or force exerted on the touch surface without providing the touch position · CPC title