Roller structure

Abstract

This invention provides a roller structure comprising a roller, a roller bracket, and an adjustment mechanism. The roller has a side surface that extends radially parallel to the roller, and the side surface includes a plurality of recesses and a plurality of protrusions alternately arranged along the rotation direction of the roller. The roller bracket is coupled to the roller to support the roller's rotation relative to the roller bracket. The adjustment mechanism is disposed on the roller bracket. When the roller rotates relative to the roller bracket, the adjustment mechanism alternately interferes with the plurality of recesses and the plurality of protrusions. The adjustment mechanism can selectively adjust the force applied to the side surface, so that different tactile sensations are produced when the roller rotates relative to the roller bracket.

Description

Technical Field

[0001] This invention relates to a roller structure; more specifically, this invention relates to a roller structure applied to a control device. Background Technology

[0002] Mice are commonly used control devices in electronic devices, especially for large-scale movement or scrolling operations, where they are often the preferred control device. Conventional mice use radial moving elements to contact the inner circumference of the scroll wheel to produce a tactile feedback. However, when the scroll wheel rotates, the gaps between the various parts often cause rebound impacts, affecting not only the feel but also generating noise. Furthermore, the tactile feedback of conventional mice is determined during manufacturing and cannot be adjusted according to actual application. Summary of the Invention

[0003] The purpose of this invention is to provide a roller structure that can be applied to control devices, providing not only fast and precise control, but also adjustable tactile feedback to suit different applications.

[0004] In one embodiment, the present invention provides a roller structure comprising a roller, a roller bracket, and an adjustment mechanism. The roller has a side surface extending radially parallel to the roller, and the side surface includes a plurality of recesses and a plurality of protrusions alternately arranged along the rotation direction of the roller. The roller bracket is coupled to the roller to support the roller's rotation relative to the roller bracket. The adjustment mechanism is disposed on the roller bracket, and when the roller rotates relative to the roller bracket, the adjustment mechanism alternately interferes with the plurality of recesses and protrusions. The adjustment mechanism can selectively adjust the force applied to the side surface, so that different tactile feedback is produced when the roller rotates relative to the roller bracket.

[0005] In one embodiment, the adjustment mechanism includes a ball, an elastic element, and an adjustment member. The ball is used to contact a side surface; the elastic element provides a restoring force such that when the roller rotates relative to the roller support, the ball moves relative to the side surface to alternately interfere with a plurality of recesses and a plurality of protrusions; the adjustment member is movable relative to the ball to adjust the force applied to the side surface.

[0006] In one embodiment, the roller support has a positioning portion, from which a ball partially protrudes to contact a side surface. An adjusting member can move relative to the ball to be positioned at different locations within the positioning portion, thereby changing the compression amount of the elastic member.

[0007] In one embodiment, the roller has an axle, and the roller support is a frame-shaped support coupled to opposite ends of the axle.

[0008] In one embodiment, the plurality of protrusions are each composed of a plurality of ribs, and the plurality of recesses are each gaps between adjacent plurality of ribs.

[0009] Another object of the present invention is to provide a roller structure applicable to control devices that simplifies roller design, reduces the number of components, and improves manufacturability.

[0010] In another embodiment, the present invention provides a roller structure comprising a roller, a roller support, a ball, and an elastic element. The roller has an axle and a side surface, the axle passing through the side surface, and the side surface including a plurality of recesses and a plurality of protrusions alternately arranged along the rotation direction of the roller. The roller support is coupled to the axle of the roller to support the rotation of the roller relative to the roller support. The ball is disposed in the roller support, and the elastic element is disposed in the roller support corresponding to the ball. When the roller rotates relative to the roller support, the elastic element provides a restoring force, causing the ball to move relative to the side surface to alternately interfere with the plurality of recesses and the plurality of protrusions.

[0011] In one embodiment, the roller bracket is a frame-shaped bracket coupled to the opposite ends of the axle, and the normal direction of the side is substantially parallel to the axial direction of the axle.

[0012] In one embodiment, the roller bracket has a positioning part, and a ball and an elastic element are positioned in the positioning part such that the ball protrudes from the positioning part toward the side of the roller.

[0013] In one embodiment, the roller structure of the present invention further includes a positioning member, wherein the positioning member engages with the positioning portion so that the force exerted by the elastic member on the side pressing against the ball remains substantially fixed.

[0014] Compared to conventional technology, the roller structure of the present invention allows for adjustment of the force applied to the roller to control the tactile feedback provided during rotation, thereby providing different tactile feedback for different applications. Furthermore, the roller structure of the present invention can provide tactile feedback during rotation by forming concave and convex surfaces on the outer side of the roller, with the spheres alternately contacting these surfaces, simplifying roller design and improving manufacturability. Attached Figure Description

[0015] Figure 1 This is an exploded view of a roller structure according to an embodiment of the present invention.

[0016] Figure 2 for Figure 1 A partial assembly diagram of the roller structure.

[0017] Figure 3 for Figure 1 A schematic diagram of the roller structure from another perspective, showing a partial combination.

[0018] Figure 4 for Figure 1 A front view diagram of the roller structure combined with the roller support.

[0019] Figure 5A and Figure 5BSchematic diagrams showing the adjustment mechanism of the roller structure of the present invention in different states. Detailed Implementation

[0020] To provide a further understanding of the purpose, structure, features and functions of the present invention, detailed descriptions are provided below with reference to embodiments.

[0021] This invention provides a roller structure applicable to, for example (but not limited to), mouse control devices to achieve fast, precise, and easily responsive control at each stage. The roller structure of this invention simplifies roller design, improves manufacturability, and further allows for different tactile feedback depending on the application. Details of the roller structure of this invention will be described in detail below with reference to the accompanying drawings.

[0022] refer to Figures 1 to 3 , Figure 1 This is an exploded view of the roller structure 1 according to an embodiment of the present invention. Figure 2 for Figure 1 A partial assembly diagram of roller structure 1, and Figure 3 for Figure 1 A partial combined schematic diagram of the roller structure 1 from another perspective. In this embodiment, the roller structure 1 includes a roller 10, a roller support 20, and an adjustment mechanism 30. The roller 10 has a side surface 15, which extends substantially parallel to the radial direction of the roller 10. The side surface 15 includes a plurality of recesses 17 and a plurality of protrusions 16 alternately arranged along the rotational direction (or circumferential direction) of the roller 10. The roller support 20 is coupled to the roller 10 to support the rotation of the roller 10 relative to the roller support 20. The adjustment mechanism 30 is disposed on the roller support 20. When the roller 10 rotates relative to the roller support 20, the adjustment mechanism 30 alternately interferes with the plurality of recesses 17 and the plurality of protrusions 16 to provide a tactile feedback to the roller structure 10. In this embodiment, the adjustment mechanism 30 can selectively adjust the force applied to the side surface 15 so that the roller 10 produces different tactile feedback when rotating relative to the roller support 20 to suit different applications.

[0023] Specifically, such as Figures 1 to 3As shown, in one embodiment, the roller 10 includes a rim 11 and a tire 13. The rim 11 is preferably made of a material with high hardness (e.g., metal or reinforced plastic) to serve as the main structure supporting the tire 13. The tire 13 is disposed along the circumferential direction of the rim 11 on the outer periphery of the rim 11, and the tire 13 is preferably made of a material with relatively low hardness (e.g., rubber, silicone) to provide tactile feedback during user operation, but is not limited thereto. In another embodiment, the rim 11 and tire 13 can be integrated into a single component and can be formed from the same or different materials by, for example, molding, to simplify the assembly process. In one embodiment, the outer surface of the tire 13 is preferably a rough surface with a tread pattern to improve operability when the user applies force. For example, as shown, a plurality of radially extending grooves can be spaced apart along the circumferential direction on the outer surface of the tire 13, but is not limited thereto. In another embodiment (not shown), a plurality of radially extending ribs, a plurality of protrusions, or a plurality of recesses may be spaced apart along the circumferential direction on the outer surface of the tire 13, making the outer surface of the tire 13 a rough surface. In other embodiments (not shown), the outer surface of the tire 13 may be a smooth surface without a tread pattern.

[0024] The side surface 15 of the roller 10 may be an outer side surface formed on one side of the rim 11, and the roller 10 further has an axle 18. The axle 18 of the roller 10 is disposed on the rim 11 to pass through the side surface 15. Specifically, the axle 18 is disposed along the axial direction of the roller 10 to form the central axis of the roller 10. In this embodiment, the axle 18 preferably passes through the center of the rim 11 and can serve as the rotation axis of the roller 10, that is, the axle 18 is the rotation center axis of the roller 10. The side surface 15 of the roller 10 is substantially parallel to the radial extension of the roller 10, such that the normal direction of the side surface 15 is substantially parallel to the axial direction of the axle 18. In other words, the side surface 15 of the roller 10 is substantially parallel to the plane of rotation of the roller 10 rotating about the axle 18 as the rotation center axis. Multiple protrusions 16 are arranged on the side surface 15 along the circumferential direction (or rotation direction) of the roller 10 (or rim 11), and each protrusion 16 extends radially along the roller 10 (or rim 11), such that a corresponding recess 17 (e.g., a groove or a perforated gap) is formed between adjacent protrusions 16, and each recess 17 also extends radially along the roller 10 (or rim 11). In other words, multiple protrusions 16 are arranged along the circumferential direction of the roller 10 (or rim 11) and extend radially from the outer edge of the side surface 15 toward the axle 18 along the roller 10 (or rim 11), so as to form multiple recesses 17 on the side surface 15 along the circumferential direction of the roller 10 (or rim 11). In this way, multiple protrusions 16 and multiple recesses 17 are alternately arranged on the side surface 15 along the circumferential direction (or rotation direction) of the roller 10 (or rim 11). In one embodiment, the plurality of protrusions 16 are each composed of a plurality of ribs, and the plurality of recesses 17 are gaps between adjacent ribs. For example, as shown in the figure, the plurality of ribs are arranged along the rotation direction (or circumferential direction) of the roller 10, and each rib extends radially from the adjacent axle 18 toward the outer edge of the roller 10 (or the wheel frame 11), such that the plurality of ribs are arranged radially along the rotation direction of the roller 10, and corresponding strip-shaped grooves (or gaps) are formed between adjacent ribs to serve as recesses 17, but this is not a limitation.

[0025] From another perspective, the plurality of protrusions 16 are relatively outwardly protruding portions of the roller 10 relative to the plane containing the side surface 15 along the axial direction, while the plurality of recesses 17 are relatively recessed portions of the roller 10 relative to the plane containing the side surface 15 along the axial direction. In other words, by forming structures such as protrusions, grooves, and through holes on the side surface 15 along the circumferential direction, the side surface 15 can form a surface with alternating concave and convex surfaces having a plurality of recesses 17 and a plurality of protrusions 16. In one embodiment, the plurality of protrusions 16 may have the same structure, so that the plurality of recesses 17 also have the same structure. For example, the plurality of protrusions 16 may have the same shape in the cross section perpendicular to the central axis (i.e., on the plane containing the side surface 15), and the plurality of protrusions 16 may be arranged sequentially at the same intervals, so that the plurality of protrusions 16 alternate with each other at the same intervals. The shape, arrangement interval, and number of the plurality of protrusions 16 and the plurality of recesses 17 may vary according to the actual application and are not limited to the embodiments shown.

[0026] like Figures 1 to 4 As shown, the roller bracket 20 is a frame-shaped bracket coupled to the opposite ends of the axle 18. Specifically, the roller bracket 20 includes two long-axis support rods 24A and 24B and two short-axis support rods 26A and 26B. The long-axis support rods 24A and 24B preferably extend parallel to each other and are located at opposite ends of the axle 18 of the roller 10. The short-axis support rods 26A and 26B are arranged radially along the opposite sides of the roller 10 and are coupled to the opposite ends of the two long-axis support rods 24A and 24B, making the roller bracket 20 a hollow frame structure, and the roller 10 can be positioned at the center of the roller bracket 20. Specifically, the long-axis support rods 24A and 24B each have shaft holes 28A and 28B, corresponding to the opposite ends of the axle 18 of the roller 10. For example, the axle 18 may have ends of different sizes, with the larger end passing through the axle hole 28A of the long axle support rod 24A (e.g., Figure 3 As shown), the smaller end passes through the shaft hole 28B of the long shaft support rod 24B (as shown). Figure 2 (as shown), but not limited thereto. In other embodiments, the axle 18 may have the same ends (e.g., all are...). Figure 2 (as shown at the small end), and the shaft holes 28A and 28B may have the same shape or size. In this embodiment, the roller bracket 20 is coupled to the opposite ends of the axle 18 of the roller 10, and is preferably located on the outside of the roller 10, such that one of the two long shaft support rods 24A and 24B (e.g., long shaft support rod 24B) is located on the outside of the roller 10 and corresponds to the side 15.

[0027] like Figure 1 and Figure 4As shown, the roller bracket 20 has a positioning portion 22 for positioning the adjustment mechanism 30. Specifically, the positioning portion 22 is provided corresponding to the side surface 15 of the roller 10, so that when the adjustment mechanism 30 is positioned on the positioning portion 22, it can partially contact the side surface 15. For example, in this embodiment, the positioning portion 22 is provided on the long shaft support rod 24B and adjacent to the shaft hole 28B. In one embodiment, the positioning portion 22 may be a cylindrical portion extending from the long shaft support rod 24B in a direction away from the roller 10, forming a positioning groove 222 in the positioning portion 22. The positioning groove 222 preferably penetrates the positioning portion 22 and the long shaft support rod 24B, so that when the adjustment mechanism 30 is positioned on the positioning portion 22, the adjustment mechanism 30 can partially protrude from the positioning portion 22 to contact the side surface 15. For example, as Figure 4 and Figure 5A As shown, the two openings 222a and 222b of the positioning groove 222 are respectively located at the end of the positioning part 22 away from the long shaft support rod 24B and the end adjacent to the long shaft support rod 24B. The diameter O1 of the opening 222a at the end of the positioning part 22 away from the long shaft support rod 24B preferably corresponds to the size of the adjusting mechanism 30 and is larger than the diameter O2 of the opening 222b adjacent to the long shaft support rod 24B. In other words, the diameter O1 of the opening 222a is preferably larger than or equal to the size of the adjusting mechanism 30, and the diameter O2 of the opening 222b is preferably smaller than the size of the adjusting mechanism 30. This allows the adjusting mechanism 30 to enter the positioning groove 222 through the opening 222a away from the long shaft support rod 24B, and prevents the adjusting mechanism 30 from dislodging from the positioning groove 222 through the opening 222b adjacent to the long shaft support rod 24B.

[0028] The positioning groove 222 preferably extends substantially parallel to the axial direction of the roller 10, so that the adjustment mechanism 30 can move along the positioning groove 222 relative to the side surface 15, thereby adjusting the force applied to the side surface 15. As shown, in one embodiment, the adjustment mechanism 30 includes a ball 32, an elastic member 34, and an adjustment member 36. The ball 32 is used to contact the side surface 15. The elastic member 34 provides a restoring force, so that when the roller 10 rotates relative to the roller support 20, the ball 32 can move relative to the side surface 15 to alternately interfere with a plurality of recesses 17 and a plurality of protrusions 16. The adjustment member 36 can move relative to the ball 32 to adjust the force applied to the side surface 15. Specifically, the ball 32 of the adjustment mechanism 30 is preferably movably (or rotatably) disposed in the positioning portion 22, and the ball 32 preferably partially protrudes from the positioning portion 22 to contact the side surface 15. That is, the opening 222b of the positioning groove 222 adjacent to the long shaft support rod 24B is preferably smaller than the diameter of the ball 32, so that the ball 32 can partially protrude from the positioning groove 222 to contact the side 15 without falling out of the positioning groove 222. When the roller 10 rotates relative to the roller bracket 20, the roller 10 can rotate relative to the ball 32, and the ball 32 can move in the positioning groove 222 in response to the rotation of the roller 10, so as to improve the rotation of the roller 10, but not limited thereto.

[0029] The elastic element 34 is disposed on the opposite side of the roller 10 relative to the side 15, i.e., the ball 32 is located between the side 15 and the elastic element 34. The elastic element 34 provides a restoring force so that the ball 32 moves relative to the side 15 to alternately interfere with the plurality of recesses 17 and the plurality of protrusions 16. The elastic element 34 can be any suitable element that provides elastic restoring force by compression deformation, such as a spring or an elastomer. For example, in this embodiment, the elastic element 34 is preferably a spring.

[0030] The adjusting member 36 is disposed on the opposite side of the elastic member 34 relative to the ball 32, that is, the adjusting member 36 and the ball 32 are located on opposite sides of the elastic member 34, and the ball 32 is adjacent to the side surface 15 of the roller 10. The adjusting member 36 can be positioned in the positioning groove 222 of the positioning part 22 to limit the range of movement of the elastic member 34 and the ball 32 relative to the positioning groove 222, so that the force of the elastic member 34 pressing against the ball 32 on the side surface 15 remains substantially fixed. In this embodiment, the adjusting member 36 can move relative to the ball 32 to be positioned at different positions of the positioning part 22, thereby changing the force of the elastic member 34 pressing against the ball 32 on the side surface 15. Specifically, since the ball 32 can only partially protrude from the positioning groove 222 to contact the side surface 15, the adjustment member 36 can move relative to the ball 32 to be positioned at different positions of the positioning part 22 to change the amount of compression of the elastic member 34, thereby the roller structure 10 can provide different tactile feedback. For example, the adjusting member 36 can be a bolt or stud, and can be selectively positioned at different positions in the positioning groove 222 by means of locking or engaging mechanisms, so that the elastic member 34 is in different compression states. In one embodiment (see reference) Figure 5A and Figure 5B The adjusting member 36 can be a bolt with threads on its surface, and the inner surface of the positioning groove 222 can have corresponding threads. Therefore, the compression length of the elastic member 34 can be adjusted by adjusting the depth to which the adjusting bolt is locked into the positioning groove 222, thereby adjusting the preset force of the elastic member 34, but this is not a limitation. In another embodiment (not shown), the adjusting member 36 can be a stud with a positioning protrusion, and the inner surface of the positioning groove 222 can have multiple positioning recesses, which are spaced apart along the moving direction of the adjusting member 36. Therefore, the positioning protrusion of the stud can selectively interfere with any positioning recess to adjust the compression length of the elastic member 34, thereby adjusting the preset force of the elastic member 34. In other embodiments, the positions of the positioning protrusion and the positioning recess can be interchanged.

[0031] like Figure 5AAs shown, when the adjusting member 36 moves relative to the ball 32 to a position in the positioning groove 222 that is farther away from the side 15 (i.e., moving toward the opening 222a), the elastic member 34 has a first compression length L1. At this time, the elastic member 34 presses against the ball 32 toward the side 15 and applies a first force to the side 15. Figure 5A In this state, when the roller 10 rotates relative to the roller support 20, the adjustment mechanism 30 (e.g., ball 32) alternately interferes with multiple recesses 17 and multiple protrusions 16, thereby generating the first segmentation sensation.

[0032] like Figure 5B As shown, when the adjusting member 36 moves relative to the ball 32 to a position in the positioning groove 222 closer to the side 15 (i.e., moving towards the opening 222b), the elastic member 34 has a second compression length L2. At this time, the elastic member 34 presses against the ball 32 towards the side 15 and applies a second force to the side 15. Figure 5B In this state, when the roller 10 rotates relative to the roller support 20, the adjustment mechanism 30 (e.g., ball 32) alternately interferes with multiple recesses 17 and multiple protrusions 16, thereby generating a second segmentation.

[0033] Because the elastic element 34 is in Figure 5A The first compression length L1 in the state is greater than that in the state. Figure 5B The second compression length L2 in the state, therefore the elastic element 34 in Figure 5A In the state where the first force applied to the side 15 through the sphere 32 is less than that in the state where Figure 5B In this state, a second force is applied to the side 15 through the sphere 32. Since the first force is less than the second force, the roller structure 1... Figure 5A The first jolt produced by the rotation of roller 10 relative to roller support 20 in this state is relatively light, while the roller structure 1 in Figure 5B In this state, the second-stage feel produced by rotating the roller 10 relative to the roller support 20 is relatively heavy. In other words, the roller structure 1 of the present invention can adjust the force applied by the elastic member 34 through the ball 32 to the side 15 of the roller 10 by the adjusting member 36 of the adjusting mechanism 30, so that the roller structure 1 can selectively provide such a force according to actual application. Figure 5A The lighter sense of paragraphing shown, or as... Figure 5B The illustration shows a heavier sense of paragraphing. It should be noted that this invention is only shown in the illustration. Figure 5A and Figure 5B In practical applications, by changing the amount of compression of the adjusting member 36 against the elastic member 34 (i.e., the elastic member 34 has different compression lengths), the roller structure 1 can have two or more different tactile sensations.

[0034] Furthermore, from another perspective, in another embodiment, the roller structure 1 of the present invention includes a roller 10, a roller support 20, a ball 32, and an elastic element 34 (see details for further information). Figures 1 to 5B The roller 10 has an axle 18 and a side surface 15, the axle 18 passing through the side surface 15, and the side surface 15 including a plurality of recesses 17 and a plurality of protrusions 16 alternately arranged along the rotation direction of the roller 10. A roller support 20 is coupled to the axle 18 of the roller 10 to support the rotation of the roller 10 relative to the roller support 20. A ball 32 is disposed on the roller support 20, and an elastic member 34 is disposed on the roller support 20 corresponding to the ball 32. When the roller 10 rotates relative to the roller support 20, the elastic member 34 provides a restoring force causing the ball 32 to move relative to the side surface 15 to alternately interfere with the plurality of recesses 17 and the plurality of protrusions 16. That is, the adjusting member 36 of the adjusting mechanism 30 can be used as the positioning member of the roller structure 1 to keep the force of the elastic member 34 pressing against the ball 32 on the side 15 substantially fixed, thereby making the roller structure 1 have a segmented feel through the concave and convex surface formed by the side 15 of the roller 10, so as to simplify the design of the roller 10.

[0035] Specifically, when the roller 10 rotates relative to the roller support 20 so that the recess 17 of the side 15 of the roller 10 corresponds to the ball 32, the elastic force (or restoring force) provided by the elastic member 34 pushes the ball 32 against the recess 17 of the side 15 of the roller 10 in the direction of the roller 10. That is, when the roller 10 rotates relative to the roller support 20, and rotates from the state where the protrusion 16 of the side 15 of the roller 10 is in contact with the ball 32 to the state where the recess 17 corresponds to the ball 32, a step difference is generated between the recess 17 and the ball 32, so that the elastic member 34 is released from the pre-compressed state to provide a restoring force, thereby pushing the ball 32 against the roller 10 until it abuts against the recess 17. When the roller 10 rotates relative to the roller support 20 to the point where the protrusion 16 of the side 15 of the roller 10 corresponds to the ball 32, the protrusion 16 presses against the ball 32 axially, causing the ball 32 to move away from the roller 10 and compress the elastic member 34. That is, when the roller 10 rotates relative to the roller support 20, and rotates from the state where the concave portion 17 of the side 15 of the roller 10 contacts the ball 32 to the state where the protrusion 16 corresponds to the ball 32, the ball 32 moves relative to the protrusion 16 in the direction of rotation, thereby compressing the elastic member 34 until the protrusion 16 abuts against the ball 32. Because multiple protrusions 16 and multiple recesses 17 are alternately arranged along the rotation direction of the roller 10, when the roller 10 rotates relative to the roller bracket 20, the roller 32 reciprocates axially by the elastic force provided by the elastic member 34, alternating between the state where the ball 32 abuts against the recess 17 and the state where the ball 32 abuts against the protrusion 16 (i.e., interfering alternately with the multiple protrusions 16 and multiple recesses 17), thereby providing a tactile feedback and achieving rapid and precise control of each movement stage. As mentioned above, the roller bracket 20 is a frame-shaped bracket coupled to the opposite ends of the axle 18, and the normal direction of its side surface is parallel to the axial direction of the axle. The roller bracket 20 has a positioning part 22, in which the ball 32 and the elastic member 34 are positioned, such that the ball 32 protrudes from the positioning part 22 towards the side surface 15 of the roller. The adjusting member 36 of the adjusting mechanism 30 can serve as a positioning member for the roller structure 1. The positioning member engages with the positioning part 22, so that the elastic member 34 remains fixed by the force applied to the ball 32 against the side surface 15. Furthermore, each of the plurality of protrusions is composed of a plurality of ribs, and each of the plurality of recesses is the gap between adjacent ribs. Related descriptions can be found in the above embodiments and accompanying drawings. Figures 1 to 5B The description will not be repeated here.

[0036] Therefore, the roller structure 1 of the present invention can provide a tactile feedback when the roller 10 rotates by forming a concave-convex surface on the outer side (e.g., side 15) of the roller 10, so that the sphere 32 alternately contacts the concave-convex surface, thereby simplifying the design of the roller 10 and improving manufacturability.

[0037] The present invention has been described in the above-described embodiments; however, these embodiments are merely examples for implementing the present invention. It must be noted that the disclosed embodiments do not limit the scope of the present invention. Conversely, any modifications and refinements made without departing from the spirit and scope of the present invention are within the scope of patent protection of the present invention.

Claims

1. A roller structure, characterized in that, Include: A roller has a side that extends radially parallel to the roller and includes a plurality of recesses and a plurality of protrusions that are alternately arranged along the rotation direction of the roller. A roller bracket, coupled to the roller, supports rotation of the roller relative to the roller bracket, the roller bracket having a positioning portion; and An adjustment mechanism is disposed on the roller bracket, and the adjustment mechanism includes: A sphere, partially protruding from the positioning portion to contact the side surface; An elastic element is disposed in the positioning part, and the elastic element provides a restoring force. When the roller rotates relative to the roller support, the ball interferes alternately with the plurality of recesses and the plurality of protrusions by means of the restoring force. and An adjusting member is movable relative to the ball to be positioned at different positions on the positioning part, so that the adjusting mechanism can selectively adjust the force applied to the side, thereby producing different tactile feedback when the roller rotates relative to the roller bracket.

2. The roller structure as described in claim 1, characterized in that, The adjusting member can move relative to the ball to be positioned at different locations on the positioning part, thereby changing the compression of the elastic member and adjusting the magnitude of the force.

3. The roller structure as described in claim 1, characterized in that, The roller has an axle, and the roller support is a frame-shaped support coupled to the opposite ends of the axle.

4. The roller structure as described in claim 1, characterized in that, The multiple convex portions are each composed of multiple ribs, and the multiple concave portions are the gaps between adjacent multiple ribs.

5. A roller structure, characterized in that, Include: A roller has an axle and a side surface, the axle passing through the side surface, and the side surface includes a plurality of recesses and a plurality of protrusions, the plurality of recesses and the plurality of protrusions being alternately arranged along the rotation direction of the roller; A roller bracket, coupled to the axle of the roller, supports the roller to rotate relative to the roller bracket, and the roller bracket has a positioning part; A sphere is disposed in the positioning part of the roller bracket and partially protrudes from the positioning part to contact the side surface; An elastic element is provided in the positioning part of the roller bracket corresponding to the ball; as well as The adjustment component can be moved relative to the ball to be positioned at different positions of the positioning part, so as to selectively adjust the force applied by the ball to the side, thereby producing different tactile feedback when the roller rotates relative to the roller bracket. When the roller rotates relative to the roller support, the elastic element provides a restoring force, causing the ball to move relative to the side surface to alternately interfere with the plurality of recesses and the plurality of protrusions.

6. The roller structure as described in claim 5, characterized in that, The roller bracket is a frame-shaped bracket coupled to the opposite ends of the wheel axle, and the normal direction of the side is parallel to the axial direction of the wheel axle.

7. The roller structure as described in claim 5, characterized in that, It also includes a positioning element that engages with the positioning part so that the elastic element is held in place by the force that presses against the sphere on the side.

8. The roller structure as described in claim 5, characterized in that, The multiple convex portions are each composed of multiple ribs, and the multiple concave portions are the gaps between adjacent multiple ribs.

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