Stylus device

Abstract

A stylus device includes a hollow pen tube, a circuit board, a refill rod body, a stopper and a positioning component. The hollow pen tube extends axially and includes an opposite pen tip end and a pen tail end, and the pen tip end has an axial opening. The circuit board divides the interior of the hollow pen tube into a pen tip chamber and a pen body chamber. The circuit board includes a first surface and a second surface. A trigger component is provided on the first surface, and the second surface faces the pen tail end. The stopper is disposed in the pen tip chamber and adjacent to the first surface of the circuit board. The positioning component is disposed in the pen body chamber and includes a wedge-shaped fixing base and a limiting member. The wedge-shaped fixing base has an inclined surface. The inclined surface includes a top and a bottom, and the bottom is adjacent to the circuit board relative to the top. The limiting member is assembled on the inclined surface and abuts against the second surface of the circuit board, so that the first surface of the circuit board abuts against the stopper.

Description

Technical Field

[0001] The present invention relates to an electronic product, in particular to a stylus device. Background Art

[0002] With the development of technology, many electronic devices (such as smart phones or tablet computers) on the market adopt a touch panel as an operation input interface for users to operate in a touch manner. In addition, in order to make the process of operating the touch panel faster and more accurate, most people will choose a stylus as a touch input tool.

[0003] Currently, the structure of a stylus generally has a refill and a circuit board disposed in a pen casing. When the refill is stressed, the circuit board can be triggered to generate a touch signal. However, tolerances are likely to occur in the manufacturing or assembly of the above-mentioned circuit board, pen casing or other components in the pen casing, so that the circuit board cannot be fixed in the expected position after being installed in the pen casing, resulting in a reduction in the production yield of the stylus. Summary of the Invention

[0004] In view of the above, in one embodiment, a stylus device is provided, which includes a hollow pen tube, a circuit board, a refill rod, a stopper and a positioning component. The hollow pen tube extends along the axial direction and includes an opposite tip end and a tail end, and the tip end has an axial opening. The circuit board is disposed in the hollow pen tube and adjacent to the tip end, and the circuit board divides the interior of the hollow pen tube into a tip chamber and a body chamber. The tip chamber communicates with the axial opening. The circuit board includes an opposite first surface and a second surface. The first surface faces the axial opening and is provided with a trigger component, and the second surface faces the tail end. The stopper is disposed in the tip chamber and adjacent to the first surface of the circuit board. The positioning component is disposed in the body chamber and adjacent to the second surface. The positioning component includes a wedge-shaped fixing seat and a limiting member. The wedge-shaped fixing seat has an inclined surface. The inclined surface includes a top and a bottom, and the bottom is adjacent to the circuit board relative to the top. The limiting member is assembled on the inclined surface and abuts against the second surface of the circuit board, so that the first surface of the circuit board abuts against the stopper.

[0005] In summary, according to the stylus device of the embodiment of the present invention, the wedge-shaped fixing seat of the positioning component has an inclined surface, so that during the process of the limiting member being stressed and assembled on the inclined surface, the limiting member can move in a single direction towards the circuit board through the guidance of the inclined surface to abut against the second surface of the circuit board, and the first surface of the circuit board abuts against the stopper and is fixed in the expected correct position, so as to avoid the manufacturing tolerance of parts or the assembly tolerance between parts from affecting the yield of the stylus device. Brief Description of the Drawings

[0006] Figure 1 It is a perspective view of an embodiment of the stylus device of the present invention.

[0007] Figure 2Exploded perspective view of an embodiment of the stylus device of the present invention.

[0008] Figure 3 Partial enlarged perspective view of an embodiment of the stylus device of the present invention.

[0009] Figure 4 Cross-sectional view of an embodiment of the stylus device of the present invention.

[0010] Figure 5 Partial cross-sectional view of an embodiment of the stylus device of the present invention.

[0011] Figure 6 Another partial cross-sectional view of an embodiment of the stylus device of the present invention.

[0012] Figure 7 Another exploded perspective view of an embodiment of the stylus device of the present invention.

[0013] Figure 8 Partial cross-sectional view of another embodiment of the stylus device of the present invention.

[0014] Wherein, reference numerals:

[0015] 1 Stylus device

[0016] 10 Hollow pen tube

[0017] 11 Pen tip end

[0018] 111 Axial opening

[0019] 12 Pen tip chamber

[0020] 13 Pen body chamber

[0021] 15 Pen tail end

[0022] 16 Spring

[0023] 17 Buffer spring

[0024] 18 Return spring

[0025] 20 Circuit board

[0026] 21 First surface

[0027] 211 Trigger assembly

[0028] 22 Second surface

[0029] 221 Electronic component

[0030] 23 Bump

[0031] 30 Refill rod

[0032] 31 Touch control terminal

[0033] 35 Trigger terminal

[0034] 40 Long bracket

[0035] 41 First end

[0036] 42 Second end

[0037] 45 Stopper

[0038] 451 Stopping block

[0039] 452 Perforation

[0040] 455 Slot

[0041] 50 Positioning component

[0042] 51 Wedge-shaped fixing base

[0043] 511 Connecting part

[0044] 512 Second thread

[0045] 52,52’ Inclined surface

[0046] 521 Top

[0047] 522 Bottom

[0048] 523 Second stopping part

[0049] 55 Limiting part

[0050] 551 Radial perforation

[0051] 552,552’ Inclined surface

[0052] 553 Notch

[0053] 554 First stopping part

[0054] 56 Positioning part

[0055] 561 First thread

[0056] L1,L2 Arrow Detailed implementation manners

[0057] The following presents various embodiments for detailed description. However, the embodiments are only used as examples for illustration and will not limit the scope of protection of the present invention. In addition, some components are omitted in the schematic diagrams of the embodiments to clearly show the technical features of the present invention. The same reference numerals will be used to represent the same or similar components in all the schematic diagrams of the specification.

[0058] Figure 1A perspective view of an embodiment of the stylus device of the present invention. Figure 2 An exploded perspective view of an embodiment of the stylus device of the present invention. Figure 3 A partially enlarged perspective view of an embodiment of the stylus device of the present invention. Figure 4 A cross-sectional view of an embodiment of the stylus device of the present invention. Figure 5 A partial cross-sectional view of an embodiment of the stylus device of the present invention. Figure 6 Another partial cross-sectional view of an embodiment of the stylus device of the present invention.

[0059] As Figures 1 to 5 shown, the stylus device 1 includes a hollow pen tube 10, a circuit board 20, a refill rod 30, a stopper 45 and a positioning assembly 50. The hollow pen tube 10 is a long hollow tube extending along the axial direction. That is to say, the above-mentioned axial direction is the extending direction of the hollow pen tube 10. The hollow pen tube 10 includes a pen tip end 11 and a pen tail end 15, and the pen tip end 11 and the pen tail end 15 are respectively located at opposite ends of the axial direction of the hollow pen tube 10. The circuit board 20, at least a part of the refill rod 30, the stopper 45 and the positioning assembly 50 are all disposed inside the hollow pen tube 10, and the pen tip end 11 of the hollow pen tube 10 further has an axial opening 111, and the axial opening 111 communicates with the inside of the hollow pen tube 10 for the refill rod 30 to pass through the pen tip end 11.

[0060] As Figures 2 to 5 shown, the circuit board 20 is adjacent to the pen tip end 11 of the hollow pen tube 10, and the circuit board 20 divides the inside of the hollow pen tube 10 into a pen tip chamber 12 and a pen body chamber 13. Among them, the pen tip chamber 12 is closer to the axial opening 111 than the pen body chamber 13, and the pen tip chamber 12 communicates with the axial opening 111. The circuit board 20 includes opposite first surface 21 and second surface 22. The first surface 21 faces the axial opening 111 and is provided with a trigger assembly 211, and the second surface 22 faces the pen tail end 15.

[0061] In some embodiments, the above-mentioned trigger assembly 211 can be a resistive switch, a capacitive switch or an electromagnetic switch. For example, the trigger assembly 211 can be a pressure sensing assembly. For example, the pressure sensing assembly can be a force sensing resistor (Force Sensing Resistor). The circuit board 20 can generate corresponding touch signals according to the pressure received by the trigger assembly 211, but this is not limited.

[0062] As Figures 2 to 5As shown, the refill rod 30 is disposed within the tip chamber 12 of the hollow pen tube 10. The refill rod 30 includes a touch end 31 and a trigger end 35. The touch end 31 passes through the axial opening 111, and the trigger end 35 corresponds to the trigger component 211 of the circuit board 20. Thus, when the touch end 31 of the refill rod 30 is pressed, the trigger end 35 can press against the trigger component 211 to generate a corresponding touch signal.

[0063] For example, as Figure 4 shown, a return spring 18 may be provided within the hollow pen tube 10. The return spring 18 abuts between the trigger component 211 and the refill rod 30. Preferably, the refill rod 30 can be pushed by the elastic force of the return spring 18 to maintain a slight gap (such as 0.1 mm, 0.2 mm, or 0.3 mm, depending on different product requirements) from the trigger component 211, so as to avoid interference between the trigger end 35 and the trigger component 211 caused by manufacturing or assembly tolerances and affect the accuracy of pressure sensing, but this is not limited. Thus, when the touch end 31 of the refill rod 30 is pressed, the return spring 18 can be compressed and the refill rod 30 can move toward the trigger component 211, causing the trigger end 35 to press against the trigger component 211 to generate a signal. When the refill rod 30 is released, the elastic force of the return spring 18 can push the refill rod 30 to move back toward the axial opening 111 for reset.

[0064] As Figures 2 to 5 shown, a stop member 45 is disposed within the tip chamber 12 and adjacent to the first surface 21 of the circuit board 20 for stopping and positioning the circuit board 20. In some embodiments, the stop member 45 can be various hard components. For example, the stop member 45 can be a baffle, a stopper, a rib, or a slot disposed within the tip chamber 12, etc. This will be described in detail later.

[0065] As Figures 4 to 6 shown, a positioning component 50 is disposed within the pen body chamber 13 and adjacent to the second surface 22 of the circuit board 20. The positioning component 50 includes a wedge-shaped fixing base 51 and a limiting member 55. In this embodiment, the wedge-shaped fixing base 51 is a block and has an inclined surface 52. The inclined surface 52 is a flat surface and includes a top 521 and a bottom 522, where the bottom 522 is closer to the circuit board 20 than the top 521. That is to say, the inclined surface 52 is inclined toward the circuit board 20. The limiting member 55 is also a block and is assembled on the inclined surface 52, and the limiting member 55 abuts against the second surface 22 of the circuit board 20 to urge the first surface 21 of the circuit board 20 to abut and be fixed to the stop member 45.

[0066] In addition, as Figure 4 and Figure 5As shown, in this embodiment, the limiting member 55 is a wedge-shaped block and has an inclined surface 552. The inclined angle of the inclined surface 552 of the limiting member 55 corresponds to and abuts against the inclined surface 52 of the wedge-shaped fixing seat 51, but this is not limited. In some embodiments, the limiting member 55 may not have the above-mentioned inclined surface 552, but the limiting member 55 is integrally installed obliquely on the inclined surface 52 of the wedge-shaped fixing seat 51.

[0067] Thereby, by assembling the limiting member 55 on the inclined surface 52, when the limiting member 55 is assembled under force, it can move in a single direction towards the circuit board 20 under the guidance of the inclined surface 52 to abut against the second surface 22 of the circuit board 20, so as to drive the circuit board 20 to abut against the stopper 45 and be fixed at the expected correct position, achieving the purpose of avoiding the manufacturing tolerance of parts or the assembly tolerance between parts from affecting the yield rate of the stylus device.

[0068] As Figure 5 shown, the positioning assembly 50 includes a positioning member 56. The positioning member 56 is radially inserted through the limiting member 55 and the wedge-shaped fixing seat 51. The above-mentioned radial direction is perpendicular to the axial direction in which the hollow pen tube 10 extends. Therefore, during the process of the positioning member 56 radially inserting through the limiting member 55 and the wedge-shaped fixing seat 51, a force acting in the direction towards the circuit board 20 can be generated on the limiting member 55, and the force can cause the limiting member 55 to move along the guidance of the inclined surface 52 towards the circuit board 20 and abut against the second surface 22 of the circuit board 20.

[0069] For example, as Figure 5As shown, in this embodiment, the positioning member 56 is a screw and has a first thread 561 (herein the first thread 561 is an external thread), the limiting member 55 has a radial through-hole 551, and the wedge-shaped fixing base 51 has an assembling portion 511 corresponding to the radial through-hole 551. The assembling portion 511 is a threaded hole and has a second thread 512 (herein the second thread 512 is an internal thread). During the assembling process of the positioning member 56, the limiting member 55 can be first placed on the inclined surface 52 of the wedge-shaped fixing base 51. Since the inclined surface 52 is inclined towards the circuit board 20, after the limiting member 55 is placed on the inclined surface 52, it can obtain preliminary limitation and will not shift away from the circuit board 20. Then, the positioning member 56 is passed through the radial through-hole 551, and then the positioning member 56 is rotated by a tool (such as a torque wrench or a screwdriver) to screw the first thread 561 onto the second thread 512 of the assembling portion 511. In addition, during the process of screwing and locking the positioning member 56 to the assembling portion 511, if the positioning member 56 is locked tighter in the radial direction (as shown by the arrow L1), the acting force on the limiting member 55 in the direction towards the circuit board 20 (as shown by the arrow L2) will be greater, so that the first surface 21 of the circuit board 20 can be more closely fixed to the stop member 45. That is to say, by placing the limiting member 55 on the inclined surface 52 of the wedge-shaped fixing base 51, when the positioning member 56 moves in the radial direction (as shown by the arrow L1), it can drive the limiting member 55 to move towards the circuit board 20 (as shown by the arrow L2), and then through the movement of the limiting member 55, the fixing relationship between the circuit board 20 and the stop member 45 can be adjusted. Thus, during assembly, the operator only needs to lock the positioning member 56 in the radial direction to ensure that the circuit board 20 is fixed at the expected correct position and avoid being affected by the manufacturing tolerances of the parts or the assembly tolerances between the parts, achieving faster and more convenient assembly and improving the manufacturing yield rate.

[0070] Again, Figure 5 As shown, the aperture of the radial through-hole 551 of the above-mentioned limiting member 55 is larger than the aperture of the assembling portion 511 and the diameter of the first thread 561 of the positioning member 56, so that the limiting member 55 can move relative to the inclined surface 52 of the wedge-shaped fixing base 51. In addition, the larger the aperture of the radial through-hole 551, the relatively larger the movable range of the limiting member 55, enabling the limiting member 55 to be adjusted in cooperation with more circuit boards 20 of different thicknesses.

[0071] In some embodiments, the first thread 561 of the above-mentioned positioning member 56 can also be an internal thread, and the second thread 512 of the assembling portion 511 corresponds to an external thread.

[0072] In some embodiments, the above positioning member 56 can also be a fixing component for assembly and positioning, such as a rivet, self-tapping screw, bolt, plug, etc. The inclination angle of the inclined surface 52 of the wedge-shaped fixing seat 51 can be 15°, 20°, 30°, 45°, 60°, 75°, etc., which is not limited and depends on the requirements of the product. In addition, the larger the inclination angle of the inclined surface 52, the more it can ensure that the limiting member 55 can move in a single direction towards the circuit board 20 during the forced assembly process.

[0073] As Figure 6 shown, in this embodiment, a notch 553 is further provided on one side of the limiting member 55 that abuts against the second surface 22 of the circuit board 20. An electronic component 221 is provided on the second surface 22 of the circuit board 20, and the electronic component 221 is received in the notch 553. For example, the electronic component 221 can be a processor, resistor, capacitor, oscillator, etc. Thus, by further providing the notch 553 on the limiting member 55, there is also sufficient space on the second surface 22 of the circuit board 20 to provide the electronic component 221, thereby improving the utilization rate of the circuit board 20.

[0074] Figure 7 Another exploded perspective view of an embodiment of the touch pen device of the present invention, as Figure 2 、 Figures 5 to 7 shown, in this embodiment, the touch pen device 1 further includes a long bracket 40. The long bracket 40 is disposed inside the hollow pen tube 10 and extends along the axial direction. The circuit board 20, at least a part of the pen core rod 30, the stop member 45, and the positioning assembly 50 are all disposed on the long bracket 40. Here, the wedge-shaped fixing seat 51 of the positioning assembly 50 and the long bracket 40 are of an integrally formed structure. The stop member 45 includes a stop block 451 and at least one slot 455. The stop block 451 and the slot 455 are disposed on the long bracket 40. In this embodiment, the number of slots 455 is three (as Figures 5 to 7 shown, but the number of slots 455 is not limited) and respectively correspond to three different sides of the circuit board 20. The stop block 451 is disposed between the three slots 455. Three different sides of the circuit board 20 respectively have bumps 23 to be inserted into the three slots 455. And when the limiting member 55 is assembled on the inclined surface 52 and abuts against the second surface 22 of the circuit board 20, the first surface 21 of the circuit board 20 can be made to abut against the stop block 451 and the wall of each slot 455 near the pen tip end 11 at the same time, so as to obtain a stable positioning of the circuit board 20.

[0075] In some embodiments, the above stop member 45 can also only include the stop block 451, or the stop member 45 can also only include at least one slot 455, or the stop member 45 can be other rigid structures such as a baffle or a rib, which is not limited.

[0076] Again, as Figure 4 andFigure 5 As shown, in this embodiment, the stopper block 451 of the stopper 45 further has a through hole 452, and the trigger assembly 211 on the first surface 21 of the circuit board 20 is received in the through hole 452, so as to further strengthen the limiting effect of the circuit board 20 in the radial direction.

[0077] As Figure 4 shown, in this embodiment, the long bracket 40 includes opposite first end 41 and second end 42. The first end 41 is adjacent to the pen tip end 11 of the hollow pen tube 10, and the second end 42 is adjacent to the pen tail end 15 of the hollow pen tube 10. A spring 16 is further provided in the hollow pen tube 10, and the spring 16 abuts between the second end 42 and the pen tail end 15. Thereby, the spring 16 can buffer the long bracket 40, avoiding the long bracket 40 from moving towards the pen tail end 15 due to abnormal force application, such as when the stylus device 1 drops or the pen core rod 30 is extruded by an external object, resulting in abnormal force application to the long bracket 40, so as to maintain the stability of the long bracket 40 and the structures on the long bracket 40 (such as the above-mentioned circuit board 20, pen core rod 30, stopper 45 and positioning assembly 50), and avoiding damage to the parts inside the hollow pen tube 10 due to extrusion or impact.

[0078] Again, as Figure 4 shown, in this embodiment, the return spring 18 abuts between the long bracket 40 and the pen core rod 30, and the elastic force of the above-mentioned spring 41 is greater than the elastic force of the return spring 18. When the touch end 31 of the pen core rod 30 touches the touch panel and the pen core rod 30 is pressed against the return spring 18 by force, it can prevent the elastic force generated by the return spring 18 from pushing the long bracket 40 towards the pen tail end 15. In addition, a buffer spring 17 can be further provided in the hollow pen tube 10, and the buffer spring 17 abuts between the first end 41 of the long bracket 40 and the pen tip end 11 of the hollow pen tube 10, so that the long bracket 40 can be clamped between the buffer spring 17 and the spring 16, so as to further ensure the stability of the long bracket 40 and the structures on the long bracket 40.

[0079] Figure 8 This is a partial cross-sectional view of another embodiment of the stylus device of the present invention. As Figure 8 shown, this embodiment and the above-mentioned Figure 5The difference between the embodiments is at least that the inclined surface 552' of the limiting member 55 in this embodiment further has at least one first stop portion 554, the inclined surface 52' of the wedge-shaped fixing base 51 further has at least one second stop portion 523, and one side of the first stop portion 554 close to the top 521 abuts against the second stop portion 523, so as to further prevent the limiting member 55 from moving away from the circuit board 20. In this embodiment, the inclined surface 552' of the limiting member 55 is a stepped inclined surface and includes a plurality of first stop portions 554 arranged in a stepped manner, and the inclined surface 52' of the wedge-shaped fixing base 51 is also a stepped inclined surface and includes a plurality of second stop portions 523 arranged in a stepped manner. Thus, when the limiting member 55 is installed at different positions on the inclined surface 52', the limiting effect can be achieved by each first stop portion 554 abutting against each second stop portion 523, preventing the limiting member 55 from moving away from the circuit board 20, and making the circuit board 2 closely fixed to the stop member 45, so that the circuit board 20 obtains a stable position.

[0080] According to the stylus device of the embodiment of the present invention, the wedge-shaped fixing base of the positioning assembly has an inclined surface, so that the limiting member moves in a single direction toward the circuit board under the guidance of the inclined surface and abuts against the circuit board, and the circuit board abuts against the stop member and is fixed at the expected correct position, so as to avoid the manufacturing tolerance of parts or the assembly tolerance between parts from affecting the yield rate of the stylus device, and the position of the trigger assembly can be stabilized, so that when the user operates the touch panel with the stylus, the stylus can correctly generate a touch signal corresponding to the user's force.

[0081] Although the technical content of the present invention has been described above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in this art, without departing from the spirit of the present invention, makes some modifications and refinements, which should be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be determined by the appended claims.

Claims

1. A stylus device, characterized in that, The stylus device includes: A hollow pen tube extending along an axis and including an opposite pen tip end and a pen tail end, the pen tip end having an axial opening; A circuit board disposed within the hollow pen tube and adjacent to the pen tip end, and the circuit board divides an interior portion of the hollow pen tube into a pen tip chamber and a pen body chamber, the pen tip chamber communicating with the axial opening, the circuit board including opposite first and second surfaces, the first surface facing the axial opening and provided with a trigger assembly, and the second surface facing the pen tail end; A pen core rod disposed within the pen tip chamber, the pen core rod including a touch end and a trigger end, the touch end passing through the axial opening, and the trigger end corresponding to the trigger assembly of the circuit board; A stopper disposed within the pen tip chamber and adjacent to the first surface of the circuit board; and A positioning assembly disposed within the pen body chamber and adjacent to the second surface, the positioning assembly including a wedge-shaped fixing base and a limiting member, the wedge-shaped fixing base having an inclined surface, the inclined surface including a top and a bottom, and the bottom being adjacent to the circuit board relative to the top, the limiting member being assembled on the inclined surface and abutting against the second surface of the circuit board, such that the first surface of the circuit board abuts against the stopper.

2. The stylus device according to claim 1, characterized in that, The positioning assembly includes a positioning member, the positioning member being radially inserted through the limiting member and the wedge-shaped fixing base, the radial direction being perpendicular to the axial direction.

3. The stylus device according to claim 2, characterized in that, The positioning member has a first thread, the limiting member has a radial through hole, the wedge-shaped fixing base has an assembling portion corresponding to the radial through hole, the assembling portion has a second thread, and the positioning member passes through the radial through hole and is screwed to the second thread with the first thread.

4. The stylus device according to claim 1, characterized in that, The limiting member has a first stopping portion, the inclined surface of the wedge-shaped fixing base has a second stopping portion, and one side of the first stopping portion close to the top abuts against the second stopping portion.

5. The stylus device according to claim 1, characterized in that, A notch is further provided on one side of the limiting member abutting against the second surface of the circuit board, and an electronic component is provided on the second surface, and the electronic component is received within the notch.

6. The stylus device according to claim 1, characterized in that, It further includes a long bracket, the long bracket is disposed inside the hollow pen tube and extends along the axis, and the circuit board, at least a part of the pen core rod, the stopper, and the positioning assembly are disposed on the long bracket.

7. The stylus device according to claim 6, characterized in that, The stopper includes a stop block, and the stop block is disposed on the long bracket.

8. The stylus device according to claim 7, characterized in that, The stopper has a through hole, and the trigger assembly is received within the through hole.

9. The stylus device according to claim 6, characterized in that, The stopper includes a slot, the slot is disposed on the long bracket, and one side of the circuit board is inserted into the slot, such that the first surface abuts against a slot wall of the slot close to the pen tip end.

10. The stylus device according to claim 6, characterized in that, The long bracket includes opposite first and second ends, the first end is adjacent to the pen tip end, the second end is adjacent to the pen tail end, and a spring is further disposed within the hollow pen tube, and the spring abuts between the second end and the pen tail end.

11. The stylus device according to claim 10, characterized in that, A buffer spring is further disposed within the hollow pen tube, and the buffer spring abuts between the first end and the pen tip end.

12. The stylus device according to claim 10, characterized in that, A return spring is further disposed inside the hollow pen tube. The return spring abuts between the long bracket and the pen core rod body, and the elastic force of the spring is greater than that of the return spring.

13. The stylus device according to claim 1, characterized in that, The trigger assembly is a pressure sensing assembly.

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