Stylus

Abstract

A stylus pen includes a pen body, a bearing structure, and a pen tip structure. The bearing structure is disposed in the pen body and has an annular positioning portion with an axial hole. The pen tip structure is disposed on the bearing structure, a section of the pen tip structure passes through the axial hole, and the annular positioning portion completely covers the said section of the pen tip structure along the circumferential direction of the axial hole.

Description

Technical Field

[0001] The present invention relates to an input device, and particularly to a stylus pen. Background Art

[0002] With the trend of thinning of portable electronic products such as smart phones and tablet computers, the size of the stylus pens paired with them is continuously reduced. In this case, if the number of components of the stylus pen is larger, its assembly is more difficult and the assembly accuracy is difficult to control. Therefore, how to reduce the number of components of the stylus pen to simplify its assembly difficulty and improve the assembly accuracy is an important issue in its design. Summary of the Invention

[0003] The present invention provides a stylus pen with a relatively simple structure and easy to assemble.

[0004] The stylus pen of the present invention includes a pen body, a carrying structure, and a pen tip structure. The carrying structure is disposed in the pen body and has an annular positioning portion with a shaft hole. The pen tip structure is disposed on the carrying structure, and a section of the pen tip structure passes through the shaft hole, and the annular positioning portion completely covers the said section of the pen tip structure along the circumferential direction of the shaft hole.

[0005] In an embodiment of the present invention, the above-mentioned pen tip structure includes a pen tip and a sleeve. The sleeve is sleeved on one end of the pen tip and passes through the shaft hole, and the other end of the pen tip protrudes outside the pen body.

[0006] In an embodiment of the present invention, the above-mentioned stylus pen includes a sensing element and a triggering element. The sensing element is disposed in the pen body, the triggering element is disposed at one end of the pen tip structure and faces the sensing element, and the pen tip structure is adapted to move into the pen body so that the triggering element contacts the sensing element.

[0007] In an embodiment of the present invention, the above-mentioned carrying structure has a break hole, and the triggering element is exposed by the break hole in the radial direction of the stylus pen.

[0008] In an embodiment of the present invention, the above-mentioned stylus pen includes a control circuit board. The sensing element is coupled to the control circuit board, and the carrying structure carries the control circuit board.

[0009] In an embodiment of the present invention, the above-mentioned stylus pen includes an elastic member. The carrying structure has a first stop portion, the elastic member is limited between the first stop portion and the pen tip structure, and the pen tip structure is adapted to move into the pen body against the elastic force of the elastic member and is adapted to reset through the elastic force of the elastic member.

[0010] In an embodiment of the present invention, the above-mentioned elastic member is a spring and is sleeved on the pen tip structure, and the opposite ends of the spring respectively abut against the first stop portion and the pen tip structure.

[0011] In an embodiment of the present invention, the above-mentioned pen core structure has a flange, the bearing structure has a second stop portion relative to the first stop portion, and the flange abuts against the second stop portion by the elastic force of the elastic member.

[0012] In an embodiment of the present invention, the above-mentioned bearing structure has a perforation, and the elastic member is exposed through the perforation in the radial direction of the stylus.

[0013] In an embodiment of the present invention, the above-mentioned stylus includes a cover body, wherein the cover body is coupled to the bearing structure to cover a part of the pen core structure.

[0014] In an embodiment of the present invention, the above-mentioned stylus includes an elastic member and a control circuit board. The bearing structure has a first stop portion, a second stop portion, and a bearing portion. A part of the pen core structure and the elastic member are limited between the first stop portion and the second stop portion. The bearing portion bears the control circuit board, and the annular positioning portion, the first stop portion, the second stop portion, and the bearing portion are an integrally formed structure.

[0015] Based on the above, in the stylus of the present invention, the bearing structure completely surrounds the pen core structure through its annular positioning portion to accurately position the pen core structure and make it have good concentricity. Thereby, no additional components need to be provided to cooperate with the bearing structure for positioning the pen core structure, and the number of components of the stylus can be reduced to lower its assembly difficulty and improve the assembly accuracy. Description of the Drawings

[0016] Figure 1 is a perspective view of a stylus according to an embodiment of the present invention;

[0017] Figure 2 is Figure 1 a partial perspective view of the stylus;

[0018] Figure 3 is Figure 1 a partial component exploded view of the stylus;

[0019] Figure 4 is Figure 2 a partial component front view of the stylus;

[0020] Figure 5 is Figure 1 a partial sectional view of the stylus;

[0021] Figure 6 is Figure 2 a bottom view of the stylus;

[0022] Figure 7 shows Figure 2 the cover body provided on the bearing structure.

[0023]

Reference Numeral Description

[0024] 100: Stylus pen

[0025] 110: Pen body

[0026] 112: Pen shaft

[0027] 114: Pen tip cover

[0028] 120: Bearing structure

[0029] 120a, 120b: Perforations

[0030] 122: Ring-shaped positioning part

[0031] 122a: Axial hole

[0032] 124: First stop part

[0033] 126: Second stop part

[0034] 128: Bearing part

[0035] 130: Pen tip structure

[0036] 132: Pen tip

[0037] 134: Sleeve

[0038] 134a: Flange

[0039] 1341: First part

[0040] 1342: Second part

[0041] 140: Control circuit board

[0042] 150: Sensing element

[0043] 160: Trigger element

[0044] 170: Elastic part

[0045] 180: Cover body

[0046] F: External force

[0047] S: Section Detailed implementation mode

[0048] The following will disclose multiple embodiments of the content of the present invention with the accompanying drawings. For the sake of clear illustration, many practical details will be described together in the following narrative. However, it should be understood that these practical details are not used to limit this disclosure. That is to say, in some embodiments of the content of the present invention, these practical details are not necessary. In addition, for the purpose of simplifying the accompanying drawings, some conventional structures and elements will be shown in a simple schematic manner in the drawings. The same reference numerals will be used to represent the same or similar elements in all the drawings.

[0049] Figure 1 is a perspective view of a stylus according to an embodiment of the present invention. Figure 2 is Figure 1 a partial perspective view of the stylus. Figure 3 is Figure 1 a partial exploded view of the components of the stylus. Please refer to Figures 1 to 3 , the stylus 100 of this embodiment includes a pen body 110, a carrier structure 120, a pen tip structure 130, and a control circuit board 140. The pen body 110 includes a pen shaft 112 and a pen tip cover 114. The carrier structure 120 is disposed within the pen body 110 and is shielded by the pen shaft 112 and the pen tip cover 114, and the carrier structure 120 carries the control circuit board 140 through its carrying portion 128. The pen tip structure 130 is disposed on the carrier structure 120 and protrudes from the pen tip cover 114 to be suitable for performing touch control.

[0050] Figure 4 is Figure 2 a front view of the partial components of the stylus. Figure 5 is Figure 1 a partial cross-sectional view of the stylus. Please refer to Figures 2 to 5 , the carrier structure 120 of this embodiment has an annular positioning portion 122, and the annular positioning portion 122 has a shaft hole 122a. A section S of the pen tip structure 130 (marked in Figure 5 ) passes through the shaft hole 122a, and the annular positioning portion 122 completely covers the section S of the pen tip structure 130 along the circumferential direction of the shaft hole 122a. That is to say, the carrier structure 120 completely surrounds the pen tip structure 130 through its annular positioning portion 122. Thereby, the carrier structure 120 can accurately position the pen tip structure 130 to make it have good concentricity. Thus, there is no need to additionally provide other components to cooperate with the carrier structure 120 for positioning the pen tip structure 130, and the number of components of the stylus 100 can be reduced to lower its assembly difficulty and improve the assembly accuracy.

[0051] Please refer to Figure 2 , Figure 3 and Figure 5, specifically, the pen core structure 130 of this embodiment includes a pen core 132 and a sleeve 134. The first part 1341 of the sleeve 134 is sleeved on one end of the pen core 132 and passes through the shaft hole 122a, and the other end of the pen core 132 protrudes outside the pen body 110 at the pen cap 114. In addition, the stylus 100 further includes a sensing element 150 and a triggering element 160. The sensing element 150 is disposed within the pen body 110 and is coupled to the control circuit board 140. The triggering element 160 is, for example, a rubber member, which is disposed on the second part 1342 of the sleeve 134 of the pen core structure 130 and faces the sensing element 150. The pen core structure 130 is adapted to move into the pen body 110 under force so that the triggering element 160 contacts the sensing element 150, thereby generating a touch signal. In this embodiment, the sensing element 150 is, for example, a pressure sensor, but the present invention is not limited thereto. In other embodiments, the sensing element 150 may be an optical sensor, a magnetic sensor, or other types of sensors.

[0052] Furthermore, in this embodiment, the stylus 100 further includes an elastic member 170. The carrier structure 120 has a first stop portion 124 and a second stop portion 126 opposite to the first stop portion 124. A part of the pen core structure 130 and the elastic member 170 are limited between the first stop portion 124 and the second stop portion 126 to provide an elastic force acting on the pen core structure 130 through the elastic member 170. Specifically, the sleeve 134 of the pen core structure 130 has a flange 134a at its first part 1341, and the flange 134a abuts against the second stop portion 126. The elastic member 170 is, for example, a spring and is sleeved on the second part 1342 of the sleeve 134 of the pen core structure 130. The opposite ends of this spring respectively abut against the first stop portion 124 and the first part 1341 of the sleeve 134 of the pen core structure 130, so that it is limited between the first stop portion 124 and the sleeve 134 of the pen core structure 130 and applies an elastic force to the first part 1341 of the sleeve 134. Through this configuration, when the pen core 132 of the pen core structure 130 is subjected to an external force (for example, Figure 5 the external force F from left to right in the figure), the pen core structure 130 will resist the elastic force of the elastic member 170 and move into the pen body 110 to make the triggering element 160 contact the sensing element 150 as described above. And when the pen core 132 is no longer subjected to an external force, the pen core structure 130 can be reset by the elastic force of the elastic member 170.

[0053] In this embodiment, the annular positioning portion 122, the first stop portion 124, the second stop portion 126, and the bearing portion 128 of the bearing structure 120 are integrally formed structures. That is, the stylus 100 of this embodiment completes the positioning of the pen core structure 130, the limiting of the elastic member 170, and the bearing of the control circuit board 140 and other assembly requirements through this single member of the bearing structure 120, rather than completing these assembly requirements by setting multiple members. Therefore, the number of components can be significantly reduced and the assembly accuracy can be improved. Thereby, the distance between the trigger element 160 and the sensing element 150 (for example, 0.05 to 0.1 mm) can be accurately controlled to ensure good touch sensing effect.

[0054] Figure 6 Is Figure 2 the bottom view of the stylus. Please refer to Figure 6 , the bearing structure 120 of this embodiment has two through holes 120a, 120b. At least part of the elastic member 170 is exposed by the through hole 120a in the radial direction of the stylus 100, and at least part of the trigger element 160 and at least part of the sensing element 150 are exposed by the through hole 120b in the radial direction of the stylus 100. Thereby, during the assembly process, the positions of the elastic member 170, the trigger element 160, and the sensing element 150 can be observed through the through holes 120a, 120b to ensure that the trigger element 160 and the sensing element 150 are accurately assembled in place through the limiting of the bearing structure 120. In other embodiments, the through hole 120a and the through hole 120b can be connected to form a single through hole.

[0055] Figure 7 Illustrates Figure 2 that a cover is provided on the bearing structure. Please refer to Figure 5 And Figure 7 , in order to make Figure 2 the components such as the sleeve 134, the elastic member 170, and the trigger element 160 in Figure 1 can be more stably arranged in the pen body 110 (illustrated in

[0056] In summary, in the stylus of the present invention, the bearing structure completely surrounds the pen core structure through its annular positioning portion to accurately position the pen core structure and make it have good concentricity. In addition, the annular positioning portion, the first stop portion, the second stop portion, and the bearing portion are integrally formed structures, so that the assembly requirements such as the positioning of the pen core structure, the limiting of the elastic member, and the bearing of the control circuit board are completed through this single member of the bearing structure, rather than by setting multiple members to complete these assembly requirements. Therefore, the number of components can be significantly reduced and the assembly accuracy can be improved. Thereby, the distance between the trigger element and the sensing element can be accurately controlled to ensure good touch sensing effect.

Claims

1. A stylus, characterized in that, Comprising: A pen body; A bearing structure disposed on the pen body and having an annular positioning portion, wherein the annular positioning portion has a shaft hole; A pen core structure disposed on the bearing structure, wherein a section of the pen core structure passes through the shaft hole, and the annular positioning portion completely covers the section of the pen core structure along the circumferential direction of the shaft hole; An elastic member, wherein the bearing structure has a first stop portion, the elastic member is limited between the first stop portion and the pen core structure, the pen core structure is adapted to move into the pen body against the elastic force of the elastic member and is adapted to reset through the elastic force of the elastic member, the pen core structure has a flange, and the bearing structure has a second stop portion opposite to the first stop portion, and the flange abuts against the second stop portion through the elastic force of the elastic member; And A control circuit board, wherein the bearing structure has a bearing portion for bearing the control circuit board, and the annular positioning portion, the first stop portion, the second stop portion and the bearing portion are of an integrally formed structure.

2. The stylus according to claim 1, wherein, The pen core structure includes a pen core and a sleeve, the sleeve is sleeved on one end of the pen core and passes through the shaft hole, and the other end of the pen core protrudes outside the pen body.

3. The stylus according to claim 1, wherein Comprising a sensing element and a triggering element, wherein the sensing element is disposed in the pen body, the triggering element is disposed at one end of the pen core structure and faces the sensing element, and the pen core structure is adapted to move into the pen body to make the triggering element contact the sensing element.

4. The stylus according to claim 3, characterized in that, The bearing structure has a perforation, and the triggering element is exposed by the perforation in the radial direction of the stylus.

5. The stylus according to claim 3, characterized in that, Wherein the sensing element is coupled to the control circuit board.

6. The stylus according to claim 1, characterized in that, The elastic member is a spring and is sleeved on the pen core structure, and opposite ends of the spring respectively abut against the first stop portion and the pen core structure.

7. The stylus according to claim 1, wherein, The bearing structure has a perforation, and the elastic member is exposed by the perforation in the radial direction of the stylus.

8. The stylus according to claim 1, characterized in that, Comprising a cover body, wherein the cover body is coupled to the bearing structure to cover a part of the pen core structure.

9. The stylus according to claim 1, wherein, Wherein a part of the pen core structure and the elastic member are limited between the first stop portion and the second stop portion.

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