Stylus Structure and Pen Shell Unit

By designing the planar inner wall and chamfered part in the housing element of the stylus, the problems of refill wear and housing deviation are solved, and low friction resistance and good operating experience are achieved.

CN115220584BActive Publication Date: 2025-07-29WACOM CO LTD
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Patent Information

Application Number
CN202110536762.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2021-04-14
Filing Date
2021-05-17
Publication Date
2025-07-29
Estimated Expiration
2041-05-17

AI Technical Summary

Technical Problem

The refills of existing stylus are easily worn, and the refills are easily displaced when combined, affecting the operating experience and the mobility of the refills.

Method used

The shell element with a planar inner wall design reduces the contact area between the refill core and the inner wall of the shell, and uses the chamfered part to make good friction contact when the shell is combined to avoid biased interference.

Benefits of technology

It reduces the sliding friction resistance of the refill core, extends the service life of the refill core, and avoids biased interference when the shell is combined, improving the operating experience.

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Abstract

The present invention discloses a stylus structure and a pen shell unit. The stylus structure includes a pen shell unit, a pen core unit, and a processing unit. The pen shell unit includes a first housing element and a second housing element. The first housing element has a first limiting portion, and the first limiting portion has a plurality of first inner walls. The second housing element is detachably docked and engaged with the first housing element, and the second housing element has a second limiting portion, and the second limiting portion has a plurality of second inner walls. The pen core unit is located between the first limiting portion and the second limiting portion. The processing unit is located between the first housing element and the second housing element. The plurality of first inner walls and the plurality of second inner walls are all planar, and the plurality of first inner walls and the plurality of second inner walls surround and form a first polygon. Thus, the stylus structure and the pen shell unit of the present invention can reduce the sliding contact friction resistance of the pen core and the misalignment interference of the housing docking and engagement.
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Description

Technical Field

[0001] The present invention relates to a stylus structure and a pen shell unit, and particularly to a stylus structure and a pen shell unit that can reduce the sliding contact friction resistance of the pen core and the misalignment interference of the housing docking joint. Background Art

[0002] With the development of technology, the speed of new product launches in the electronics industry is getting faster and faster. Electronic products with touch screens, such as tablet computers and smartphones, have become one of the trends and mainstreams in current technology. In general, when operating, most users directly click, slide, etc. on the touch screen with their fingers. However, when it comes to long-term writing, drawing, or more delicate processing on the touch screen, using fingers is obviously inconvenient. Therefore, most users will purchase a stylus to operate the touch screen.

[0003] However, since the pen cores of current styli are all designed in a cylindrical shape, and the inner wall parts of the two pen shells for accommodating the pen cores are also designed in an arc shape corresponding to the outer shape of the pen core, the outer edge of the pen core and the inner wall of the pen shell are in contact with each other in a surface contact manner. Therefore, during the use of the stylus, the pen core is easily worn, resulting in damage or deformation, and thus unable to provide users with a good operating experience. In addition, if there is a small deviation or displacement when the two pen shells are combined, a corner structure will appear in the accommodation groove formed between the two pen shells, resulting in restricted mobility of the pen core.

[0004] Therefore, how to overcome the above-mentioned defects through structural design improvement has become one of the important issues to be solved in this field. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a stylus structure and a pen shell unit in view of the deficiencies of the prior art.

[0006] To solve the above technical problems, one of the technical solutions adopted by the present invention is to provide a stylus structure, which includes a pen shell unit, a pen core unit, and a processing unit. The pen shell unit includes a first shell element and a second shell element. The first shell element has a first limiting portion, and the first limiting portion has a plurality of first inner walls, and two adjacent first inner walls are connected to each other. The second shell element is detachably docked and engaged with the first shell element, and the second shell element has a second limiting portion, and the second limiting portion has a plurality of second inner walls, and two adjacent second inner walls are connected to each other. The pen core unit is located between the first limiting portion and the second limiting portion. The processing unit is located between the first shell element and the second shell element. Wherein, the plurality of first inner walls and the plurality of second inner walls are all planar, the plurality of first inner walls respectively correspond to the plurality of second inner walls, and the plurality of first inner walls and the plurality of second inner walls surround and form a first polygon.

[0007] To solve the above technical problems, another technical solution adopted by the present invention is to provide a pen shell unit, which includes a first shell element and a second shell element. The first shell element has a first limiting portion, and the first limiting portion has a plurality of first inner walls, and two adjacent first inner walls are connected to each other. The second shell element is detachably docked and engaged with the first shell element, and the second shell element has a second limiting portion, and the second limiting portion has a plurality of second inner walls, and two adjacent second inner walls are connected to each other. Wherein, the plurality of first inner walls and the plurality of second inner walls are all planar, the plurality of first inner walls respectively correspond to the plurality of second inner walls, and the plurality of first inner walls and the plurality of second inner walls surround and form a polygon.

[0008] One of the beneficial effects of the present invention is that the stylus structure and the pen shell unit provided by the present invention can reduce the sliding contact friction resistance of the pen core and the offset interference of the shell docking and engagement through the technical solution of "the pen shell unit includes a first shell element and a second shell element. The first shell element has a first limiting portion, and the first limiting portion has a plurality of first inner walls, and two adjacent first inner walls are connected to each other. The second shell element is detachably docked and engaged with the first shell element, and the second shell element has a second limiting portion, and the second limiting portion has a plurality of second inner walls, and two adjacent second inner walls are connected to each other. Wherein, the plurality of first inner walls and the plurality of second inner walls are all planar, the plurality of first inner walls respectively correspond to the plurality of second inner walls, and the plurality of first inner walls and the plurality of second inner walls surround and form a first polygon".

[0009] To enable a further understanding of the features and technical content of the present invention, please refer to the following detailed description and drawings of the present invention. However, the provided drawings are only for reference and illustration, and are not used to limit the present invention. Description of the Drawings

[0010] Figure 1 Exploded schematic view of the structure of the stylus pen according to the first embodiment of the present invention.

[0011] Figure 2 Schematic view of the structure of the pen housing unit according to the first embodiment of the present invention.

[0012] Figure 3 Front view schematic view of the structure of the stylus pen according to the first embodiment of the present invention.

[0013] Figure 4 For Figure 3 The first enlarged schematic view of part IV in

[0014] Figure 5 Partial schematic view of the structure of the stylus pen according to the first embodiment of the present invention.

[0015] Figure 6 The first schematic view of the structure of the pen housing unit according to the second embodiment of the present invention.

[0016] Figure 7 The second schematic view of the structure of the pen housing unit according to the second embodiment of the present invention. Detailed Description of the Preferred Embodiments

[0017] The following are specific embodiments to illustrate the embodiments of the present invention regarding "the structure of the stylus pen and the pen housing unit". Those skilled in the art can understand the advantages and effects of the present invention from the content disclosed in this specification. The present invention can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of the present invention. Additionally, it should be stated in advance that the drawings of the present invention are only simple schematic illustrations and are not drawn according to actual dimensions. The following embodiments will further detail the related technical content of the present invention, but the disclosed content is not used to limit the protection scope of the present invention.

[0018] It should be understood that although terms such as "first", "second", and "third" may be used herein to describe various elements, these elements should not be limited by these terms. These terms are mainly used to distinguish one element from another. Additionally, the term "or" used herein should, depending on the actual situation, possibly include any one or a combination of more of the associated listed items.

[0019] First Embodiment

[0020] Please refer to Figures 1 to 5 , which are respectively an exploded schematic view of the stylus structure of the first embodiment of the present invention, a schematic view of the structure of the pen housing unit, a front view schematic view of the stylus structure, Figure 3 the first enlarged schematic view of part IV in Figure 5 and a partial schematic view of the stylus structure of the first embodiment of the present invention, wherein, Figure 3 also corresponds to part IV in

[0021] As shown in the figures, the first embodiment of the present invention provides a stylus structure Z, and the stylus structure includes a pen housing unit 1, a pen core unit 2 and a processing unit 3. The stylus structure Z can be a capacitive stylus or other types of stylus. The stylus structure Z can be used in combination with an electronic device having a touch screen (such as a smart phone, a tablet computer, a touch notebook computer, etc., but not limited thereto). Figure 1 and Figure 2 As shown, the pen housing unit 1 can include a first housing element 10 and a second housing element 11. The first housing element 10 can have a first limiting portion 100, and the first limiting portion 100 has a plurality of first inner walls 101, and two adjacent first inner walls 101 are connected to each other. The second housing element 11 is detachably docked and joined with the first housing element 10. The second housing element 11 can have a second limiting portion 110, and the second limiting portion 110 has a plurality of second inner walls 111, and two adjacent second inner walls 111 are connected to each other. Further, as shown in Figures 1 to 3 , a receiving space S1 is defined between the first housing element 10 and the second housing element 11, and the receiving space S1 can be used to accommodate the processing unit 3. One end of the first housing element 10 extends outward to form the first limiting portion 100, and the plurality of first inner walls 101 of the first limiting portion 100 are all planar. In contrast, one end of the second housing element 11 corresponding to the first limiting portion 100 extends outward to form the second limiting portion 110, and the plurality of second inner walls 111 of the second limiting portion 110 are all planar. The plurality of first inner walls 101 correspond to the plurality of second inner walls 111. Moreover, a polygonal space S2 is defined between the first limiting portion 100 and the second limiting portion 110, and the polygonal space S2 can be used to accommodate the pen core unit 2; that is to say, the plurality of first inner walls 101 respectively correspond to the plurality of second inner walls 111, and the plurality of first inner walls 101 and the plurality of second inner walls 111 surround to form a first polygon P1 and the polygonal space S2. Among them, the first polygon P1 is preferably a regular polygon, such as any regular polygon from a regular quadrilateral to a regular icosagon, but not limited thereto.

[0022] Next, in conjunction with Figure 1 and Figure 3As shown, the refill unit 2 is movably located between the first limiting portion 100 and the second limiting portion 110. Among them, the refill unit 2 can be made of plastic or conductive material, but is not limited thereto.

[0023] Next, in cooperation with Figure 1 As shown, the processing unit 3 is located between the first housing element 10 and the second housing element 11, that is, the processing unit 3 is disposed in the accommodation space S1. The processing unit 3 can be a circuit board or a processor with processing functions, but is not limited thereto.

[0024] Therefore, when the user operates the touch pen structure Z of the present invention, when the refill unit 2 contacts the touch screen of the electronic device (not shown in the figure) and slides, since the contact surfaces between the outer wall of the refill unit 2 and the plurality of first inner walls 101 of the first limiting portion 100 or the plurality of second inner walls 111 of the second limiting portion 110 are in a dot shape or a linear shape, therefore, the friction area between the refill unit 2 and the first inner wall 101 or the second inner wall 111 is also only in a dot shape or a linear shape, thereby effectively reducing the loss rate of the refill unit 2 and extending the service life of the refill unit 2.

[0025] In addition, the cross-section of the body of the refill unit 2 can be circular or a second polygon P2, and the shape of the second polygon P2 is different from that of the first polygon P1. For example, in cooperation with Figure 4 and Figure 5 As shown, the cross-section of the body of the refill unit 2 can be circular (as shown in Figure 4 ), or can be non-circular and in the shape of a regular polygon (as shown in Figure 5 ), such as any regular polygon from a regular quadrilateral to a regular icosagon, but is not limited thereto.

[0026] According to the above content, the present invention further provides a pen shell unit 1, which includes a first housing element 10 and a second housing element 11. The first housing element 10 has a first limiting portion 100, and the first limiting portion 100 has a plurality of first inner walls 101, and two adjacent first inner walls 101 are connected to each other. The second housing element 11 is detachably docked and joined with the first housing element 10. The second housing element 11 has a second limiting portion 110, and the second limiting portion 110 has a plurality of second inner walls 111, and two adjacent second inner walls 111 are connected to each other. Among them, the plurality of first inner walls 101 and the plurality of second inner walls 111 are both planar, the plurality of first inner walls 101 correspond to the plurality of second inner walls 111, and the plurality of first inner walls 101 and the plurality of second inner walls 111 surround and form a polygon (i.e., the first polygon P1).

[0027] Thus, with the above technical solution, the stylus structure Z of the present invention and the pen shell unit 1 greatly reduce the contact area (i.e., the friction area) between the outer wall of the pen core unit 2 and the first inner wall 101 or the second inner wall 111, that is, reduce the sliding contact friction resistance of the pen core unit 2, and thus can effectively extend the service life of the pen core unit 2.

[0028] Further, there is a first preset angle a1 between two adjacent first inner walls 101, and the first preset angle a1 is between 90 degrees and 162 degrees; wherein, there is a second preset angle a2 between two adjacent second inner walls 111, and the second preset angle a2 is the same as the first preset angle a1. Figures 4 to 5 As shown, an included angle can be defined between two adjacent first inner walls 101, that is, the first preset angle a1; wherein, the first preset angle a1 can be between 90 degrees and 162 degrees, and the first preset angle a1 is preferably 108 degrees or 120 degrees, but not limited thereto. And, an included angle can also be defined between two adjacent second inner walls 111, that is, the second preset angle a2; wherein, the second preset angle a2 can be between 90 degrees and 162 degrees, the second preset angle a2 is preferably 108 degrees or 120 degrees, and, the second preset angle a2 is preferably also the same as the first preset angle a1, but not limited thereto. In actual implementation, the second preset angle a2 can also be different from the first preset angle a1.

[0029] In addition, as shown in Figure 1 the stylus structure Z may further include a housing unit 4 and a tail cap unit 5. The housing unit 4 can be sleeved on the pen shell unit 1, that is, the housing unit 4 can cover the first housing element 10 and the second housing element 11. The tail cap unit 5 is detachably connected to the housing unit 4. Wherein, one end of the first housing element 10 and the second housing element 11 corresponds to the pen core unit 2, and the other end of the first housing element 10 and the second housing element 11 corresponds to the tail cap unit 5.

[0030] However, the above examples are only one feasible embodiment and are not intended to limit the present invention.

[0031] Second Embodiment

[0032] Please refer to Figure 6 and Figure 7 which are respectively the first structural schematic diagram and the second structural schematic diagram of the pen shell unit of the second embodiment of the present invention, and please also refer to Figures 1 to 5As shown in the figure, the stylus structure Z of this embodiment is substantially similar to the stylus structure Z of the above first embodiment. Therefore, the setting or actuation of the same components will not be described herein again. In this embodiment, one side of one of the first inner walls 101 adjacent to one of the second inner walls 111 has a first chamfer portion 101a, and one side of the other first inner wall 101 adjacent to the other second inner wall 111 has a second chamfer portion 101b. Among them, one side of one of the second inner walls 111 corresponding to the first chamfer portion 101a has a fourth chamfer portion 111a, and one side of the other second inner wall 111 corresponding to the second chamfer portion 101b has a fifth chamfer portion 111b.

[0033] Specifically, in cooperation with Figure 6 and Figure 7 as shown, one side of the first inner wall 101 near one side edge of the first housing element 10 has a first chamfer portion 101a, and the other side of the first inner wall 101 is connected to the adjacent first inner wall 101. One side of the first inner wall 101 near the other side edge of the first housing element 10 has a second chamfer portion 101b, and the other side of the first inner wall 101 is connected to the adjacent first inner wall 101. Correspondingly, one side of the second inner wall 111 near one side of the second housing element 11 has a fourth chamfer portion 111a, and the other side of the second inner wall 111 is connected to the adjacent second inner wall 111. One side of the second inner wall 111 near the other side of the second housing element 11 has a fifth chamfer portion 111b, and the other side of the second inner wall 111 is connected to the adjacent second inner wall 111.

[0034] Therefore, when the first housing element 10 and the second housing element 11 are combined, the first chamfer portion 101a and the fourth chamfer portion 111a can be in a shape similar to an inverted V, and the second chamfer portion 101b and the fifth chamfer portion 111b can also be in a shape similar to an inverted V. Thus, when there is a small deviation or displacement during the combination of the first housing element 10 and the second housing element 11, when the user operates the stylus structure Z of the present invention, the outer wall of the refill unit 2 can also have good frictional contact with the first chamfer portion 101a, the second chamfer portion 101b, the fourth chamfer portion 111a, or the fifth chamfer portion 111b, so as to avoid the docking and joining of the first housing element 10 and the second housing element 11 being offset and interfering with the mobility of the refill unit 2.

[0035] In addition, each first inner wall 101 may further have a third chamfer portion 101c on the side near the outside, and each second inner wall 111 may also have a sixth chamfer portion 111c on the side near the outside. Moreover, the first chamfer portion 101a, the second chamfer portion 101b, the third chamfer portion 101c, the fourth chamfer portion 111a, the fifth chamfer portion 111b, and the sixth chamfer portion 111c may be rounded corners, chamfers, or other types of arc corners, but are not limited thereto.

[0036] However, the examples given above are only one feasible embodiment and are not intended to limit the present invention.

[0037] Beneficial effects of the embodiment

[0038] One of the beneficial effects of the present invention is that the stylus structure Z and the pen shell unit 1 provided by the present invention can reduce the sliding contact friction resistance of the refill unit 2 and improve the service life of the refill unit 2 through the technical solution that "the pen shell unit 1 includes a first shell element 10 and a second shell element 11. The first shell element 10 has a first limiting portion 100, the first limiting portion 100 has a plurality of first inner walls 101, and two adjacent first inner walls 101 are connected to each other. The second shell element 11 is detachably docked and joined with the first shell element 10, the second shell element 11 has a second limiting portion 110, the second limiting portion 110 has a plurality of second inner walls 111, and two adjacent second inner walls 111 are connected to each other. Among them, the plurality of first inner walls 101 and the plurality of second inner walls 111 are both planar, the plurality of first inner walls 101 correspond to the plurality of second inner walls 111, and the plurality of first inner walls 101 and the plurality of second inner walls 111 surround and form a first polygon P1".

[0039] Furthermore, the stylus structure Z and the pen shell unit 1 provided by the present invention adopt the above technical solution, that is, by using the structural design of the plurality of first inner walls 101 and the plurality of second inner walls 111, the contact area (i.e., the friction area) between the outer wall of the refill unit 2 and the first inner wall 101 or the second inner wall 111 is greatly reduced, thereby reducing the sliding contact friction resistance of the refill unit 2, and thus effectively extending the service life of the refill unit 2. Moreover, the stylus structure Z and the pen shell unit 1 of the present invention can also be designed with a first chamfer portion 101a, a second chamfer portion 101b, a fourth chamfer portion 111a, and a fifth chamfer portion 111b, so that when the first shell element 10 and the second shell element 11 have a small deviation and displacement during combination, the outer wall of the refill unit 2 can have good frictional contact with the first chamfer portion 101a, the second chamfer portion 101b, the fourth chamfer portion 111a, or the fifth chamfer portion 111b, so as to avoid the docking and joining deviation interference between the first shell element 10 and the second shell element 11 and affect the mobility of the refill unit 2.

[0040] The content disclosed above is only the preferred feasible embodiment of the present invention, and does not limit the protection scope of the claims of the present invention. Therefore, all equivalent technical changes made by using the content of the specification and drawings of the present invention are included in the protection scope of the claims of the present invention.

Claims

1. A stylus structure, characterized in that, Comprising: A pen shell unit, comprising: A first housing element having a first limiting portion with a plurality of first inner walls, two adjacent first inner walls being connected to each other; and A second housing element detachably docked and joined with the first housing element, the second housing element having a second limiting portion with a plurality of second inner walls, two adjacent second inner walls being connected to each other; A refill unit located between the first limiting portion and the second limiting portion; and A processing unit located between the first housing element and the second housing element; Wherein, the plurality of first inner walls and the plurality of second inner walls are all planar, the plurality of first inner walls respectively correspond to the plurality of second inner walls, and the plurality of first inner walls and the plurality of second inner walls surround to form a first polygon.

2. The stylus structure according to claim 1, wherein The cross-section of the body of the refill unit is a second polygon, and the shape of the second polygon is different from that of the first polygon.

3. The stylus structure according to claim 1, wherein, A receiving space is defined between the first housing element and the second housing element for accommodating the processing unit; wherein, one end of the first housing element extends outward to form the first limiting portion, and one end of the second housing element corresponding to the first limiting portion extends outward to form the second limiting portion, and a polygonal space is defined between the first limiting portion and the second limiting portion for accommodating the refill unit.

4. The stylus structure according to claim 1, characterized in that, One of the first inner walls near one side edge of the first housing element has a first chamfer portion on the side adjacent to the corresponding one of the second inner walls, and another first inner wall near the other side edge of the first housing element has a second chamfer portion on the side adjacent to the corresponding other one of the second inner walls; wherein, one side of the corresponding one of the second inner walls to the first chamfer portion has a fourth chamfer portion, and one side of the corresponding other one of the second inner walls to the second chamfer portion has a fifth chamfer portion; wherein, the first chamfer portion and the fourth chamfer portion are in an inverted-V shape, and the second chamfer portion and the fifth chamfer portion are in an inverted-V shape.

5. The stylus structure according to claim 1, wherein There is a first preset angle between two adjacent first inner walls, the first preset angle being between 90 degrees and 162 degrees; wherein, there is a second preset angle between two adjacent second inner walls, the second preset angle being the same as the first preset angle.

6. A pen shell unit, characterized in that, Comprising: A first housing element having a first limiting portion with a plurality of first inner walls, two adjacent first inner walls being connected to each other; A second housing element detachably docked and joined with the first housing element, the second housing element having a second limiting portion with a plurality of second inner walls, two adjacent second inner walls being connected to each other; Among them, multiple said first inner walls and multiple said second inner walls are all planar, the multiple said first inner walls respectively correspond to the multiple said second inner walls, and the multiple said first inner walls and the multiple said second inner walls surround to form a polygon.

7. The pen shell unit according to claim 6, characterized in that, The pen shell unit is applied to a stylus structure, and a receiving space is defined between the first housing element and the second housing element, and the receiving space is used to accommodate the processing unit of the stylus structure.

8. The pen shell unit according to claim 6, characterized in that, One end of the first housing element extends outward to form the first limiting portion, one end of the second housing element corresponding to the first limiting portion extends outward to form the second limiting portion, and a polygonal space is defined between the first limiting portion and the second limiting portion, and the polygonal space is used to accommodate the pen core unit of the stylus structure.

9. The pen shell unit according to claim 6, characterized in that, One of the first inner walls near one side edge of the first housing element has a first chamfer portion on the side adjacent to the corresponding one of the second inner walls, and another first inner wall near the other side edge of the first housing element has a second chamfer portion on the side adjacent to the corresponding other one of the second inner walls; among them, one side of the corresponding one of the second inner walls to the first chamfer portion has a fourth chamfer portion, and one side of the corresponding other one of the second inner walls to the second chamfer portion has a fifth chamfer portion; among them, the first chamfer portion and the fourth chamfer portion are in an inverted V shape, and the second chamfer portion and the fifth chamfer portion are in an inverted V shape.

10. The pen shell unit according to claim 6, characterized in that, There is a first preset angle between two adjacent first inner walls, and the first preset angle is between 90 degrees and 162 degrees; among them, there is a second preset angle between two adjacent second inner walls, and the second preset angle is the same as the first preset angle.

Citation Information

Patent Citations

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