Stylus

Abstract

A stylus includes a hollow pen tube, a reinforcing member, an elastic plate, a sensor, and a pen tip. The reinforcing member is disposed within the hollow pen tube and is fixed to the hollow pen tube. The elastic plate is disposed within the hollow pen tube and includes a fixed plate and an elastic cantilever. The fixed plate is fixed to the reinforcing member, and the elastic cantilever is connected to the fixed plate. The sensor is disposed on the elastic cantilever of the elastic plate. The pen tip is disposed within the hollow pen tube and is movable relative to the hollow pen tube to deform the elastic cantilever.

Description

Technical Field

[0001] This invention relates to an electronic product, and more particularly to a stylus. Background Technology

[0002] With the rapid development of technology, many electronic devices use touch panels as their operating interface, such as smartphones or tablets, to enhance convenience for users. However, to make the operation of touch panels faster and more accurate, most users choose to use a stylus for touch input (such as writing or clicking).

[0003] A typical stylus pen has a sensor inside its casing. When a user touches the touch panel with the stylus pen, the pen tip is pressed and moves relative to the casing, causing the pen tip to interact with the sensor and sense a signal. Therefore, if the pen tip shakes during movement or causes other components inside the casing to move, it will affect the accuracy of the sensor. Summary of the Invention

[0004] In view of the above, in one embodiment, a stylus is provided, comprising a hollow pen tube, a reinforcing member, an elastic plate, a sensing member, and a pen refill. The reinforcing member is disposed within the hollow pen tube and is fixed to the hollow pen tube. The elastic plate is disposed within the hollow pen tube and includes a fixed plate and an elastic cantilever. The fixed plate is fixed to the reinforcing member, and the elastic cantilever is connected to the fixed plate. The sensing member is disposed on the elastic cantilever of the elastic plate. The pen refill is disposed within the hollow pen tube and is movable relative to the hollow pen tube to deform the elastic cantilever.

[0005] In summary, the stylus of this invention improves the structural strength of the stylus by setting a reinforcing member inside the hollow pen tube, and by connecting and fixing the elastic plate, the reinforcing member, and the hollow pen tube together. This prevents the pen tip from shaking during movement relative to the hollow pen tube and also prevents other components from being displaced by the pen tip, thereby improving the accuracy of sensing and ensuring that the product achieves the expected performance. Attached Figure Description

[0006] Figure 1 This is a perspective view of an embodiment of the stylus of the present invention;

[0007] Figure 2 This is an exploded perspective view of an embodiment of the stylus of the present invention;

[0008] Figure 3 This is a perspective view of an embodiment of the reinforcing component for the stylus of the present invention;

[0009] Figure 4 This is a partial perspective view of an embodiment of the stylus of the present invention;

[0010] Figure 5for Figure 1 A partial sectional view along line segment 5-5;

[0011] Figure 6 for Figure 1 A partial sectional view along line segment 6-6;

[0012] Figure 7 This is a partial perspective view of an embodiment of the stylus of the present invention;

[0013] Figure 8 This is a cross-sectional view of another embodiment of the stylus of the present invention.

[0014] [Symbol Explanation]

[0015] 1: Stylus

[0016] 10: Hollow Pen Tube

[0017] 101: First perforation

[0018] 102: Second perforation

[0019] 103:Pen body tube

[0020] 104: Pen tip and tube

[0021] 105: Tail Cover

[0022] 11: First fastener

[0023] 12: Second fastener

[0024] 13: Third fastener

[0025] 15: Pen tip

[0026] 20: Reinforcing parts

[0027] 21: First assembly board

[0028] 211: First assembly hole

[0029] 212: Positioning hole

[0030] 22: Second assembly plate

[0031] 221: Second assembly hole

[0032] 222, 223: Openwork section

[0033] 23: First side panel

[0034] 231: First slot

[0035] 24: Second side panel

[0036] 241: Second snap groove

[0037] 25: Fixture slot

[0038] 30: Flexible plate

[0039] 31: Fixing plate

[0040] 311: First fixing hole

[0041] 32: Flexible cantilever

[0042] 321: Connecting side

[0043] 322: Free side

[0044] 33: Supporting cantilever

[0045] 331: Fixed end

[0046] 35: Reinforced plate

[0047] 40: Sensor

[0048] 50: Pen refill

[0049] 51: Shaft tube

[0050] 511: Receptacle

[0051] 512: Tank wall

[0052] 52: Sensor Core

[0053] 521: Electrical connection part

[0054] 55: Pen tip

[0055] 60: Circuit board

[0056] 61: Base

[0057] 62: First Assembly Section

[0058] 63: Second Assembly Section

[0059] 631: Fastener

[0060] 64: Induction Circuit Board Detailed Implementation

[0061] It should be noted that in the descriptions of the various embodiments, the terms "first," "second," and "third" are used to describe different elements, and these elements are not limited by such predicates. Furthermore, for ease of explanation and clarity, the thickness or dimensions of the elements in the drawings are exaggerated, omitted, or approximated for the understanding and reading of those skilled in the art. The dimensions of each element are not exactly their actual dimensions and are not intended to limit the implementation of the invention; therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effects and objectives achieved by the invention, should still fall within the scope of the technical content disclosed in this invention. The same reference numerals will be used to denote the same or similar elements in all the drawings.

[0062] Figure 1 This is a perspective view of an embodiment of the stylus of the present invention. Figure 2 This is an exploded perspective view of an embodiment of the stylus of the present invention. Figure 1 and Figure 2 As shown, the stylus 1 of this embodiment includes a hollow pen tube 10, a reinforcing member 20, an elastic plate 30, a sensing member 40, and a pen core 50.

[0063] like Figure 2 As shown, in this embodiment, the hollow pen tube 10 has a pen body 103, a pen tip 104, and a tail cap 105. The pen tip 104 and the tail cap 105 are respectively assembled at opposite ends of the pen body 103, but this is not a limitation. In some embodiments, the pen body 103 and the pen tip 104 can also be integrally connected to form an integrally formed structure.

[0064] Figure 3 This is a perspective view of an embodiment of the reinforcing member of the stylus of the present invention. Figure 4 This is a partial perspective view of an embodiment of the stylus of the present invention. Figure 5 for Figure 1 A partial sectional view along line segment 5-5. (e.g.) Figures 2 to 5 As shown, the reinforcing member 20 is disposed inside the hollow pen tube 10 and is fixed to the hollow pen tube 10. For example, the reinforcing member 20 can be fixed to the hollow pen tube 10 by means of screwing, riveting, or snap-fitting. The reinforcing member 20 may include at least one plate. For example, in this embodiment, the reinforcing member 20 is tubular and includes multiple plates such as a first assembly plate 21, a second assembly plate 22, a first side plate 23, and a second side plate 24. The first assembly plate 21, the second assembly plate 22, the first side plate 23, and the second side plate 24 are integrally connected to each other and surround to form a tube body. The first assembly plate 21 and the second assembly plate 22 are respectively adjacent to the opposite sides of the hollow pen tube 10.

[0065] like Figures 2 to 5As shown, an elastic plate 30 is disposed inside the hollow pen tube 10. The elastic plate 30 includes a fixed plate 31 and an elastic cantilever 32, with the elastic cantilever 32 connected to the fixed plate 31. In this embodiment, the elastic cantilever 32 is perpendicular to the fixed plate 31 and has a connecting side 321 and a free side 322. The connecting side 321 of the elastic cantilever 32 is integrally connected to one end of the fixed plate 31, while the free side 322 of the elastic cantilever 32 is not fixed. Thus, when the elastic cantilever 32 is pushed by an external force, the elastic cantilever 32 can deform relative to the hollow pen tube 10 with the connecting side 321 as the fulcrum. When the external force is released, the elastic cantilever 32 returns to its original undeformed state.

[0066] like Figures 2 to 5 As shown, the fixing plate 31 of the elastic plate 30 is fixed to the reinforcing member 20. For example, the fixing plate 31 of the elastic plate 30 can be fixed to the reinforcing member 20 by means of screwing, riveting, snapping, or welding. In this embodiment, the first assembly plate 21 of the reinforcing member 20 is located between the fixing plate 31 of the elastic plate 30 and the hollow pen tube 10. The first assembly plate 21 of the reinforcing member 20 may have at least one first assembly hole 211. Here, there are two first assembly holes 211, and the two first assembly holes 211 are respectively adjacent to the opposite ends of the first assembly plate 21. The hollow pen tube 10 has a first through hole 101. The number and position of the first through holes 101 correspond to the number and position of the first assembly holes 211. In addition, in this embodiment, the first through hole 101 is provided in the pen tip tube body 104 of the hollow pen tube 10, but this is not limited. The first through hole 101 may also be provided in the pen body tube body 103 of the hollow pen tube 10. The fixing plate 31 of the elastic plate 30 has a first fixing hole 311. The number and position of the first fixing holes 311 correspond to the number and position of the first assembly holes 211. A first fixing member 11 is installed in each of the first assembly holes 211 of the reinforcing member 20, each of the first through holes 101 of the hollow pen tube 10 and each of the first fixing holes 311 of the fixing plate 31. For example, the first fixing member 11 can be a rivet, screw or bolt, so that the reinforcing member 20, the hollow pen tube 10 and the elastic plate 30 are connected and fixed to each other.

[0067] In some embodiments, the first fixing member 11 may be assembled only in each of the first assembly holes 211 of the reinforcing member 20 and each of the first through holes 101 of the hollow pen tube 10, and the fixing plate 31 of the elastic plate 30 may not need to be provided with the first fixing hole 311.

[0068] For example Figure 5 As shown, in this embodiment, since the two first assembly holes 211 of the first assembly plate 21 of the reinforcing member 20 are respectively adjacent to the opposite ends of the fixing plate 31 of the elastic plate 30, the reinforcing member 20, the hollow pen tube 10 and the elastic plate 30 are connected and fixed by multiple first fixing members 11, which can improve the strength of the three after they are combined and prevent the reinforcing member 20 or the fixing plate 31 of the elastic plate 30 from being displaced due to force.

[0069] like Figures 2 to 5 As shown, the second assembly plate 22 of the reinforcing member 20 is also fixed to the hollow pen tube 10. In this embodiment, the second assembly plate 22 has a second assembly hole 221, and the hollow pen tube 10 has a second through hole 102. The number and position of the second through holes 102 correspond to the number and position of the second assembly holes 221, respectively. Here, the second through holes 102 are provided in the pen tip tube 104 of the hollow pen tube 10, but this is not limited; the second through holes 102 can also be provided in the pen body tube 103 of the hollow pen tube 10. A second fixing member 12 is assembled in the second assembly hole 221 of the second assembly plate 22 of the reinforcing member 20 and the second through hole 102 of the hollow pen tube 10. For example, the second fixing member 12 can be a rivet, screw, or bolt, etc., so that the reinforcing member 20 and the hollow pen tube 10 are assembled and fixed to each other. In this way, the first assembly plate 21 and the second assembly plate 22 on opposite sides of the reinforcing member 20 are fixed to the hollow pen tube 10, making the reinforcing member 20 and the elastic plate 30 fixed to the reinforcing member 20 more stable and less prone to displacement.

[0070] In some embodiments, the hollow pen tube 10 can be a plastic tube to prevent its internal circuitry from contacting the outside world, thereby protecting user safety, avoiding current interference, and reducing static electricity. The reinforcing member 20 can be a metal part with higher tensile strength, compressive strength, and bending strength than the hollow pen tube 10, thus achieving structural reinforcement. The elastic plate 30 can be a metal plate, and the fixing plate 31 of the elastic plate 30 and the reinforcing member 20 can be welded together to further enhance the strength of the combined elastic plate 30 and the reinforcing member 20, making the fixing plate 31 of the elastic plate 30 more stable and less prone to displacement. In addition, in some embodiments, the structural strength of the reinforcing member 20 can be greater than that of the elastic plate 30. For example, both the reinforcing member 20 and the elastic plate 30 can be plates made of metal materials, and the thickness of the reinforcing member 20 is greater than that of the elastic plate 30. Alternatively, the strength of the metal material of the reinforcing member 20 can be greater than the strength of the metal material of the elastic plate 30, so that the structural strength of the reinforcing member 20 is greater than the structural strength of the elastic plate 30, thus providing a better reinforcement effect.

[0071] like Figure 5 As shown, the sensor 40 is disposed on the elastic cantilever 32 of the elastic plate 30. For example, the sensor 40 can be a strain gauge and disposed on the surface of the elastic cantilever 32. The strain gauge can be a conductive line made of a metal material (such as a copper-nickel alloy, a nickel-chromium alloy, or copper). When the elastic cantilever 32 deforms, the sensor 40 can deform accordingly, causing the conductive line to be stretched or compressed, resulting in a change in resistance value. The processor (not shown) of the stylus 1, which is electrically connected to the sensor 40, can generate a corresponding touch signal according to the change in resistance value.

[0072] like Figures 2 to 5 As shown, the pen tip 50 is disposed inside the hollow pen tube 10 and connected to the pen head 55. At least part of the pen head 55 is located outside the pen head tube body 104 of the hollow pen tube 10. When the user operates the stylus 1 and touches the pen head 55 against the touch surface of the electronic device, the pen head 55 can be pressed and drive the pen tip 50 to move towards the elastic cantilever 32 of the elastic plate 30, so that the pen tip 50 pushes against the elastic cantilever 32 to deform, so that the sensor 40 generates a corresponding touch signal according to the deformation.

[0073] In summary, the stylus 1 of this embodiment of the invention, by additionally providing a reinforcing member 20 inside the hollow pen tube 10, and by assembling and fixing the elastic plate 30, the reinforcing member 20 and the hollow pen tube 10 together, can improve the structural strength of the stylus 1, prevent the pen tip 50 from shaking during movement relative to the hollow pen tube 10, and also prevent other components (such as the elastic plate 30) from being displaced by the pen tip 50. When the pen tip 50 is moved by manipulation, the position and deformation of the elastic cantilever 32 of the elastic plate 30 can meet expectations, thereby improving the accuracy of sensing and ensuring that the product achieves the expected performance.

[0074] like Figures 2 to 5 As shown, the pen refill 50 has a shaft tube 51 and a sensing core 52. The sensing core 52 is assembled inside the shaft tube 51. The elastic plate 30 also includes a support cantilever 33. In this embodiment, the support cantilever 33 is perpendicular to the fixing plate 31 of the elastic plate 30. The support cantilever 33 and the elastic cantilever 32 are respectively connected to the opposite ends of the fixing plate 31. The support cantilever 33 is closer to the pen tip 55 than the elastic cantilever 32. The support cantilever 33 is fixed to the shaft tube 51 of the pen refill 50 to prevent the pen refill 50 from shaking during the movement relative to the hollow pen tube 10.

[0075] like Figures 2 to 5 As shown, in this embodiment, the support cantilever 33 is a C-shaped plate with two fixed ends 331. A portion of the shaft tube 51 of the pen refill 50 is located within the support cantilever 33, and the support cantilever 33 is fixed to the shaft tube 51 of the pen refill 50 by the two fixed ends 331. For example, the shaft tube 51 of the pen refill 50 can be made of metal, and the support cantilever 33 can be a metal plate. The two fixed ends 331 of the support cantilever 33 can be fixed to the pen refill 50 by welding. However, the above embodiment is only an example, and the support cantilever 33 can also be fixed to the pen refill 50 by other means. For example, the support cantilever 33 can be fixed to the shaft tube 51 of the pen refill 50 by screwing, riveting, snapping, or adhesive. In addition, the support cantilever 33 can also be other shapes and is not limited to C-shape.

[0076] For example Figures 2 to 5As shown, in this embodiment, a reinforcing plate 35 can be additionally provided inside the hollow pen tube 10. The reinforcing plate 35 is fixed to the pen refill 50 and the supporting cantilever 33. For example, the reinforcing plate 35 can be fixed to the pen refill 50 and the supporting cantilever 33 by means of screwing, riveting, snapping, welding, or adhesive to strengthen the connection strength between the pen refill 50 and the supporting cantilever 33. For example, such as Figure 2 and Figure 4 As shown, the reinforcing plate 35 can be a metal plate and covers the two fixed ends 331 of the supporting cantilever 33. The reinforcing plate 35 is simultaneously fixed to the shaft tube 51 of the pen refill 50 and the two fixed ends 331 of the supporting cantilever 33 by welding, so as to prevent the two fixed ends 331 of the supporting cantilever 33 from detaching from the pen refill 50, thereby improving the stability of the pen refill 50 during operation.

[0077] like Figure 1 , Figure 2 and Figure 5 As shown, the hollow pen tube 10 further includes a circuit board 60. The hollow pen tube 10 has a pen tail end 15. The circuit board 60 is located between the elastic plate 30 and the pen tail end 15, and the reinforcing member 20 can be directly or indirectly connected to the circuit board 60, making the reinforcing member 20 and the elastic plate 30 fixed to the reinforcing member 20 more stable and less prone to displacement. Figures 2 to 5 As shown, in this embodiment, the hollow pen tube 10 further includes a base 61, which can be fixed to the hollow pen tube 10. The circuit board 60 is assembled onto the base 61, and the reinforcing member 20 can be assembled onto the base 61 and indirectly assembled onto the circuit board 60. However, the above embodiment is only an example. In some embodiments, the reinforcing member 20 can also be directly fixed to the circuit board 60.

[0078] Figure 6 for Figure 1 A partial sectional view along line segment 6-6. (e.g.) Figures 2 to 6 As shown, the base 61 may have multiple assembly parts (a first assembly part 62 and a second assembly part 63) for assembly to the base 61. In this embodiment, the first assembly part 62 and the second assembly part 63 are respectively adjacent to the opposite ends of the reinforcing member 20 and are respectively assembled to the reinforcing member 20, so that the reinforcing member 20 and the base 61 are fixed at multiple points, thereby further improving the stability of the reinforcing member 20. For example, the first assembly part 62 or the second assembly part 63 of the base 61 can be fixed to the reinforcing member 20 by means of screwing, riveting, or snap-fitting.

[0079] like Figures 2 to 5 As shown, in this embodiment, the first assembly plate 21 of the reinforcing member 20 has a positioning hole 212 at one end near the circuit board 60, and the first assembly part 62 of the base 61 is a hole. A third fixing member 13 (such as...) can be assembled into the positioning hole 212 of the first assembly plate 21 and the first assembly part 62. Figure 5As shown), for example, the third fastener 13 can be a rivet, screw or bolt, so that the end of the reinforcing member 20 near the circuit board 60 is connected and fixed to the base 61.

[0080] like Figures 2 to 6 As shown, in this embodiment, the first side plate 23 of the reinforcing member 20 has a first fastening groove 231, the second side plate 24 of the reinforcing member 20 has a second fastening groove 241, and the second assembly part 63 of the base 61 includes two fasteners 631, and the two fasteners 631 are respectively fastened into the first fastening groove 231 and the second fastening groove 241 of the reinforcing member 20 (e.g., Figure 6 As shown, the first assembly plate 21, the first side plate 23 and the second side plate 24 of the reinforcing member 20 are all connected and fixed to the base 61 to achieve the effect of multi-point fixing, thereby further improving the stability of the reinforcing member 20 and preventing the elastic plate 30 fixed to the reinforcing member 20 from shifting.

[0081] For example Figure 3 As shown, the reinforcing member 20 may have one or more jig slots 25, allowing jigs to be inserted into the jig slots 25 to pre-position the reinforcing member 20 during assembly. In this embodiment, the reinforcing member 20 has four jig slots 25 located on opposite sides of the reinforcing member 20, with two jig slots 25 located on the first side plate 23 of the reinforcing member 20 and the other two jig slots 25 located on the second side plate 24 of the reinforcing member 20. Thus, during the assembly of the reinforcing member 20 with other components (such as the aforementioned hollow pen tube 10, elastic plate 30, and base 61), jigs can be inserted into the jig slots 25 of the reinforcing member 20 to pre-position the reinforcing member 20 and prevent it from deviating from the predetermined assembly position.

[0082] Figure 7 This is a partial perspective view of an embodiment of the stylus of the present invention, wherein... Figure 7 This involves presenting a portion of the hollow pen tube 10 in a perspective view to clearly show the internal components of the hollow pen tube 10; this will be explained in advance. For example... Figure 2 , Figure 3 , Figure 6 and Figure 7As shown, the shaft tube 51 of the pen refill 50 may have a receiving groove 511, and the hollow pen tube 10 contains a sensing circuit board 64. The sensing core 52 has an electrical connection portion 521, which is located in the receiving groove 511 and electrically connected to the sensing circuit board 64. The sensing circuit board 64 can be electrically connected to the circuit board 60, so that the sensing core 52, the sensing circuit board 64, and the circuit board 60 can transmit signals to each other. In this embodiment, the reinforcing member 20 has a hollow portion 222, the position of which corresponds to the position of the receiving groove 511. That is, the second assembly plate 22 of the reinforcing member 20 only covers a partial area of ​​the receiving groove 511, so that after the sensing core 52 and the sensing circuit board 64 are assembled, the user can confirm from the outside of the reinforcing member 20 whether the sensing core 52 and the sensing circuit board 64 are indeed electrically connected to each other.

[0083] For example Figure 3 , Figure 5 and Figure 7 As shown, the reinforcing member 20 maintains a distance from the pen refill 50 so that the pen refill 50 does not contact the reinforcing member 20 during its movement relative to the hollow pen tube 10, thereby avoiding affecting the user's operating feel. For example, in this embodiment, the receiving groove 511 of the shaft tube 51 of the pen refill 50 has a groove wall 512, and the reinforcing member 20 has another hollow portion 223. The position of the hollow portion 223 corresponds to the groove wall 512 of the receiving groove 511, so as to prevent the groove wall 512 of the shaft tube 51 from contacting the reinforcing member 20 during the movement of the pen refill 50 relative to the hollow pen tube 10.

[0084] Figure 8 This is a cross-sectional view of another embodiment of the stylus of the present invention. Figure 8 As shown, this embodiment is similar to the one described above. Figure 5 The difference in this embodiment is at least that the reinforcing member 20 does not have a hollow portion 222, and the second assembly plate 22 of the reinforcing member 20 covers most of the area of ​​the receiving groove 511 to reduce electromagnetic interference. Furthermore, in this embodiment, the second assembly plate 22 has two second assembly holes 221, which are respectively adjacent to opposite ends of the second assembly plate 22. The hollow pen tube 10 has two second through holes 102 corresponding to the second assembly holes 221. A second fixing member 12 is assembled in each of the second assembly holes 221 of the second assembly plate 22 of the reinforcing member 20 and each of the second through holes 102 of the hollow pen tube 10. In this way, the second assembly plate 22 of the reinforcing member 20 can also achieve multi-point positioning, making the reinforcing member 20 and the elastic plate 30 fixed to the reinforcing member 20 more stable and less prone to displacement.

[0085] In summary, the stylus 1 of this invention, through the aforementioned connection and fixing method between the various components disposed within the hollow pen tube 10, enhances the structural strength, reliability, and durability of the stylus 1, extends the product's lifespan, and avoids frequent replacements due to damage. Furthermore, the stylus's operational performance and stability during user operation are also improved.

[0086] Although the technical content of the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any modifications and refinements made by those skilled in the art without departing from the spirit of the present invention should be included within the scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope defined in the claims.

Claims

1. A stylus, characterized in that, include: Hollow pen tube; A reinforcing member is disposed inside the hollow pen tube and is fixed to the hollow pen tube; An elastic plate is disposed inside the hollow pen tube. The elastic plate includes a fixed plate and an elastic cantilever. The fixed plate is fixed to the reinforcing member, and the elastic cantilever is connected to the fixed plate. The sensing element is disposed on the elastic cantilever of the elastic plate; as well as The pen refill is disposed inside the hollow pen tube. The pen refill can selectively move relative to the hollow pen tube to cause the elastic cantilever to deform.

2. The stylus as described in claim 1, characterized in that, The reinforcing member includes a first assembly plate having a first assembly hole, the hollow pen tube having a first through hole, the position of the first assembly hole corresponding to the position of the first through hole, and a first fixing member being assembled inside the first assembly hole and the first through hole.

3. The stylus as described in claim 2, characterized in that, The reinforcing member includes a second assembly plate, which is adjacent to the first assembly plate on opposite sides of the hollow pen tube. The second assembly plate has a second assembly hole, and the hollow pen tube has a second through hole. The position of the second assembly hole corresponds to the position of the second through hole, and a second fixing member is assembled in the second assembly hole and the second through hole.

4. The stylus as described in claim 2, characterized in that, The fixing plate of the elastic plate has a first fixing hole, and the first fixing member is further assembled in the first fixing hole.

5. The stylus as described in claim 1, characterized in that, The fixing plate of the elastic plate is a metal plate, the reinforcing member is a metal member, and the fixing plate and the reinforcing member are welded and fixed together.

6. The stylus as described in claim 1, characterized in that, It also includes a reinforcing plate, the elastic plate including a support cantilever, the support cantilever and the elastic cantilever being respectively connected to opposite ends of the fixed plate, the support cantilever being fixed to the pen refill, and the reinforcing plate being fixed to the pen refill and the support cantilever.

7. The stylus as described in claim 6, characterized in that, The support cantilever is a C-shaped plate with two fixed ends. The support cantilever is fixed to the pen refill with the two fixed ends, and the reinforcing plate is fixed to the pen refill and the two fixed ends.

8. The stylus as described in claim 1, characterized in that, It also includes a circuit board, the hollow pen tube having a pen tail end, the circuit board being disposed inside the hollow pen tube and located between the elastic plate and the pen tail end, and the reinforcing member being further assembled to the circuit board.

9. The stylus as described in claim 8, characterized in that, It also includes a base disposed inside the hollow pen tube, the circuit board being assembled on the base, and the reinforcing member being assembled on the base.

10. The stylus as described in claim 9, characterized in that, The base has a first assembly portion and a second assembly portion, which are respectively adjacent to the opposite ends of the reinforcing member and respectively assembled to the reinforcing member.

11. The stylus as described in claim 1, characterized in that, The pen refill has a shaft tube and a sensing core. The sensing core is assembled to the shaft tube. The shaft tube has a receiving groove. The sensing core has an electrical connection part located in the receiving groove. The reinforcing member has a hollow part, and the position of the hollow part corresponds to the position of the receiving groove.

12. The stylus as described in claim 1, characterized in that, The reinforcing member is spaced apart from the pen refill so that the pen refill does not come into contact with the reinforcing member during its movement relative to the hollow pen tube.

13. The stylus as described in claim 1, characterized in that, The reinforcement has at least a fixture slot.

14. The stylus as described in claim 1, characterized in that, The structural strength of the reinforcing member is greater than that of the elastic plate.

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