Roller assembly

Abstract

This utility model discloses a roller assembly, including: a base, a roller, a toothed sensor, and several sliding claws. The roller is rotatably connected to the base, and its rotation triggers an coded operation. The toothed sensor is positioned corresponding to the roller's axis of rotation. The sliding claws are movably connected to the roller, contacting the toothed sensor under gravity and separating from it under centrifugal force. With this configuration, when the roller is rotating slowly or stationary, the sliding claws contact the toothed sensor under gravity, keeping the roller assembly in a ratchet-like rolling state. When the roller is rotating rapidly, the sliding claws separate from the toothed sensor under centrifugal force, allowing the roller assembly to roll freely. This enables adaptive adjustment of the degree of freedom based on the roller's rotation speed, saving user effort and simplifying the roller assembly's structure.

Description

Technical Field

[0001] This utility model relates to the field of electronic technology, and specifically discloses a roller assembly. Background Technology

[0002] A mouse is an external input device for a computer, serving as an indicator for positioning on the computer's display system using horizontal and vertical coordinates. Its purpose is to simplify computer operation, replacing cumbersome keyboard commands. The mouse wheel generally refers to the component on the mouse located between the left and right buttons. A typical mouse wheel can be scrolled back and forth and is used when a scroll bar exists in the interface, such as when browsing web pages or documents.

[0003] Most existing mouse scroll wheels have fixed degrees of freedom, which cannot provide multiple levels of scrolling feel or fast scrolling, making them inconvenient when fast scrolling or other scrolling needs are required. Therefore, scroll wheel components such as CN216596196U "An encoder assembly with switchable scroll wheel rotation degrees of freedom" and CN223092399U "Scroll wheel encoding assembly" have emerged. Both can provide two degrees of freedom: ratchet scrolling and free scrolling. However, these two types of scroll wheel components have more complex structures, require more parts to manufacture, and are more difficult to assemble. They also require switching operations to adjust the degrees of freedom during use. Utility Model Content

[0004] To address at least one of the problems existing in the prior art, this utility model provides a roller assembly that, by providing a toothed sensor corresponding to the roller shaft and several pawls movably connected to the roller, can adaptively adjust the degree of freedom by utilizing the speed of the roller rotation, without the need for additional switching operations, thus greatly improving the user experience.

[0005] The technical solution adopted by this utility model to solve its problem is:

[0006] The roller assembly includes:

[0007] Base;

[0008] The roller is connected to the base and rotates to trigger the coding operation.

[0009] Gear sensor, the gear sensor is set to correspond to the rotation axis of the roller;

[0010] Several sliding claw components are movably connected to the roller. The sliding claw components come into contact with the toothed sensor under the action of gravity, and the sliding claw components separate from the toothed sensor under the action of centrifugal force.

[0011] In some preferred embodiments, the sliding pawl is provided with a pawl facing the rotating shaft, and the tooth sensor is provided with a tooth on the upper side corresponding to the rotating shaft. The sliding pawl contacts the tooth sensor through the pawl and the tooth.

[0012] In some preferred embodiments, the roller is provided with a groove corresponding to the sliding claw component. The sliding claw component includes a mounting part, and a pawl is disposed at the end of the mounting part facing the rotating shaft. The sliding claw component is movably disposed in the groove through the mounting part and is movably connected to the roller.

[0013] In some preferred embodiments, the slide is arranged around the pivot, and the pawl moves toward the end of the slide away from the pivot under the action of centrifugal force and separates from the toothed component.

[0014] In some preferred embodiments, the roller includes a wheel body and a wheel cover, a groove is disposed on the wheel body, and the wheel cover is disposed on the wheel body, so that the pawl can only move along the groove.

[0015] In some preferred embodiments, the pivot is disposed on the wheel body, and the wheel cover is provided with a through hole on the pivot on one side of the wheel body, through which the pivot on one side of the wheel body passes and is rotatably connected to the base.

[0016] In some preferred embodiments, the width of the pawl gradually increases in the direction away from the pivot, and as the pawl gradually separates from the toothed component under the action of centrifugal force, the width of the part of the pawl that contacts the tooth gradually decreases.

[0017] In some preferred embodiments, the pawl is arranged around the axis of rotation, and the pawl moves away from the axis of rotation under the action of centrifugal force and separates from the toothed element.

[0018] In some preferred embodiments, the base is provided with a mounting groove corresponding to the pivot, and the roller is rotatably connected to the mounting groove and thus rotatably connected to the base via the pivot.

[0019] In some preferred embodiments, the mounting slot is provided with a snap-fit ​​position corresponding to the toothed sensor, and the toothed sensor is provided with a snap-fit ​​part corresponding to the snap-fit ​​position. The toothed sensor is connected to the base by snapping the snap-fit ​​part into the snap-fit ​​position.

[0020] In some preferred embodiments, the device further includes: a fixing cover disposed at the end of the rotating shaft to restrict the axial movement of the toothed sensor along the rotating shaft; a mounting groove having a rotating hole corresponding to the fixing cover, and a protrusion corresponding to the rotating hole on the fixing cover, the protrusion being rotatably connected to the rotating hole so that the rotating shaft is rotatably connected to the mounting groove.

[0021] In summary, compared with the prior art, the roller assembly provided by this utility model has the following technical advantages:

[0022] By using a toothed sensor with a corresponding roller shaft and several pawls movably connected to the roller, when the roller is rotating slowly or stationary, the pawls contact the toothed sensor under gravity, causing the roller assembly to be in a ratchet-like rolling state. When the roller is rotating quickly, the pawls separate from the toothed sensor under centrifugal force, causing the roller assembly to be in a free-rolling state. This allows for adaptive adjustment of the degree of freedom by utilizing the speed of the roller's rotation. On the one hand, it saves users from having to perform additional switching operations when adjusting the degree of freedom, greatly improving the user experience. On the other hand, it simplifies the structure of the roller assembly, eliminating the need for components for switching operations and significantly reducing production costs. Attached Figure Description

[0023] Figure 1 This is a diagram showing the degrees of freedom of the ratchet rolling mechanism in an embodiment of the roller assembly of this utility model.

[0024] Figure 2 This is a diagram showing the free rolling degrees of freedom of an embodiment of the roller assembly of this utility model;

[0025] Figure 3 This is a first disassembled view of an embodiment of the roller assembly of this utility model;

[0026] Figure 4 This is a second disassembled view of an embodiment of the roller assembly of this utility model;

[0027] Figure 5 This is a schematic diagram of the slipper component in an embodiment of the roller assembly of this utility model.

[0028] The meanings of the reference numerals in the attached figures are as follows:

[0029] 1. Base; 11. Mounting slot; 111. Snap-fit ​​position; 112. Rotary hole; 2. Roller; 21. Wheel body; 210. Slide groove; 211. Rotating shaft; 212. Flange; 22. Wheel cover; 220. Through hole; 3. Gear sensor; 30. Socket hole; 31. Clamping tooth; 32. Snap-fit ​​part; 4. Sliding claw; 41. Mounting part; 42. Clamping claw; 5. Fixing cover; 51. Protrusion; 6. Encoding module; 61. Flexible circuit board. Detailed Implementation

[0030] To better understand and implement this invention, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0031] It should be understood that the phrase "one embodiment" or "an embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the present invention. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0032] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0034] First Embodiment

[0035] according to Figure 1-4 As shown, this utility model provides a roller assembly, including: a base 1, a roller 2, a toothed component 3, and several sliding claw components 4.

[0036] Specifically, the roller 2 is rotatably connected to the base 1, and the rotation of the roller 2 triggers the coding operation; the toothed sensor 3 is set corresponding to the rotating shaft 211 of the roller 2; the sliding pawl 4 is movably connected to the roller 2, and the sliding pawl 4 contacts the toothed sensor 3 under the action of gravity, and the sliding pawl 4 separates from the toothed sensor 3 under the action of centrifugal force; wherein, in a preferred embodiment, the toothed sensor 3 is set on the rotating shaft 211 of the roller 2, and more preferably, the toothed sensor 3 is provided with a sleeve hole 30 corresponding to the rotating shaft 211, and the toothed sensor 3 is sleeved on the rotating shaft 211 through the sleeve hole 30.

[0037] With the above settings, when the roller 2 is rotating slowly or stationary, the pawl 4 contacts the toothed sensor 3 under the action of gravity, causing the roller assembly to be in a ratchet rolling state. When the roller 2 is rotating quickly, the pawl 4 separates from the toothed sensor 3 under the action of centrifugal force, causing the roller assembly to be in a free rolling state. This allows for adaptive adjustment of the degree of freedom by utilizing the rotation speed of the roller 2. On the one hand, it saves users from having to perform additional switching operations when adjusting the degree of freedom, greatly improving the user experience. On the other hand, it simplifies the structure of the roller assembly, eliminating the need for components for switching operations and significantly reducing production costs.

[0038] In practice, the sliding pawl 4 is arranged around the rotating shaft 211. Under the action of centrifugal force, the sliding pawl 4 moves away from the rotating shaft 211 and separates from the tooth sensor 3. Correspondingly, under the action of gravity, the sliding pawl 4 moves towards the rotating shaft 211 and contacts the tooth sensor 3. In practical applications, the sliding pawl 4 is evenly arranged with the rotating shaft 211 as the center so that each sliding pawl 4 is subjected to uniform force, thereby ensuring the synchronicity of the movement of each sliding pawl 4.

[0039] according to Figure 5 As shown, the sliding pawl 4 is provided with a pawl 42 facing the rotating shaft 211, and the toothed sensor 3 is provided with a tooth 31 on the upper side corresponding to the rotating shaft 211. The sliding pawl 4 contacts the toothed sensor 3 through the pawl 42 contacting the tooth 31. Specifically, the roller 2 is provided with a sliding groove 210 corresponding to the sliding pawl 4. The sliding pawl 4 includes a mounting part 41, and the pawl 42 is provided at one end of the mounting part 41 facing the rotating shaft 211. The sliding pawl 4 is movably connected to the roller 2 through the mounting part 41 being movably disposed in the sliding groove 210, wherein the mounting part 41 is slidably engaged in the sliding groove 210. More The mounting part 41 has two pawls 42 on both sides of the end facing the rotating shaft 211. The center of the wheel body 21 has a flange part 212. When the mounting part 41 is movably installed in the slide groove 210, the two pawls 42 slide into the flange part 212 respectively, thereby clamping the flange part 212 to restrict the movement of the pawls 42 along the axial direction of the rotating shaft 211. This ensures that the pawls 42 can be in a stable state when they move with the mounting part 41, and at the same time ensures that each pawl 42 can be stably placed on the same vertical plane, thereby ensuring the consistency of the contact state between the tooth 31 and each pawl 42.

[0040] In some preferred embodiments, the width of the pawl 42 gradually increases in the direction away from the rotating shaft 211, and correspondingly, the distance between adjacent pawls 42 gradually decreases in the direction away from the rotating shaft 211. During the process of the sliding pawl 4 separating from the toothed member 3 under the action of centrifugal force, the pawl 42 moves in the direction away from the rotating shaft 211, so that the width of the part of the pawl 42 that contacts the tooth 31 gradually decreases, that is, the time that the tooth 31 is between adjacent pawls 42 gradually increases. Therefore, the resistance encountered by the roller 2 during rotation gradually decreases. Thus, the degree of freedom of the roller assembly gradually increases as the rotation speed of the roller 2 increases. In other words, the roller assembly switches from the ratchet rolling degree of freedom to the free rolling degree of freedom as the rotation speed of the roller 2 increases.

[0041] Conversely, as the sliding pawl 4 gradually comes into contact with the toothed component 3 under the action of gravity, the pawl 42 moves toward the rotating shaft 211, and the width of the part of the pawl 42 that contacts the tooth 31 gradually increases. That is, the time that the tooth 31 is between adjacent pawls 42 gradually decreases. Therefore, the resistance experienced by the roller 2 during rotation gradually increases. As a result, the degree of freedom of the roller assembly gradually decreases as the rotation speed of the roller 2 decreases. In other words, the roller assembly switches from free rolling degree of freedom to ratchet rolling degree of freedom as the rotation speed of the roller 2 decreases.

[0042] Furthermore, the slide groove 210 is arranged around the rotating shaft 211. Under the action of centrifugal force, the sliding pawl 4 moves towards the end of the slide groove 210 away from the rotating shaft 211 and separates from the tooth sensor 3. That is, under the action of centrifugal force, the sliding pawl 4 slides along the slide groove 210 in the direction away from the rotating shaft 211 and separates from the tooth sensor 3. Correspondingly, under the action of gravity, the sliding pawl 4 moves towards the end of the slide groove 210 close to the rotating shaft 211 and contacts the tooth sensor 3. That is, under the action of gravity, the sliding pawl 4 slides along the slide groove 210 towards the rotating shaft 211 and contacts the tooth sensor 3. Furthermore, the slide groove 210 is uniformly arranged with the rotating shaft 211 as the center, so that the sliding pawl 4 is uniformly arranged with the rotating shaft 211 as the center, thereby achieving uniform force on each sliding pawl 4.

[0043] according to Figure 3 , 4As shown, the roller 2 also includes a wheel body 21 and a wheel cover 22. A groove 210 is disposed on the wheel body 21, and the wheel cover 22 is disposed on the wheel body 21, so that the pawl 4 can only move along the groove 210, thereby ensuring the smoothness of the sliding process of the pawl 4 and ensuring the smoothness of the degree of freedom switching process. The groove 210 is open on one side to allow the mounting part 41 to slide within the groove 210, while the other side of the groove 210 is closed to ensure that the mounting part 41 is stably mounted on the groove. Inside the slide groove 210, the wheel cover 22 covers the wheel body 21 corresponding to the opposite side of the slide groove 210, thereby sealing the opposite side of the slide groove 210, so that the pawl 4 can only move along the slide groove 210; preferably, the rotating shaft 211 is provided on the wheel body 21, and the wheel cover 22 is provided with a through hole 220 corresponding to the rotating shaft 211 on one side of the wheel body 21, and the rotating shaft 211 on one side of the wheel body 21 passes through the through hole 220 and is rotatably connected to the base 1; more preferably, the rotating shaft 211 is provided on the flange portion 212.

[0044] Optionally, the base 1 is provided with a mounting groove 11 corresponding to the rotating shaft 211, and the roller 2 is rotatably connected to the base 1 via the rotating shaft 211 and the mounting groove 11. Furthermore, the mounting groove 11 is provided with a snap-fit ​​position 111 corresponding to the toothed sensor 3, and the toothed sensor 3 is provided with a snap-fit ​​part 32 corresponding to the snap-fit ​​position 111. The snap-fit ​​part 32 snaps into the snap-fit ​​position 111, and the toothed sensor 3 is connected to the base 1 via the snap-fit ​​part 32 and the snap-fit ​​part 32, thereby restricting the circumferential movement of the toothed sensor 3. In addition, this roller assembly also includes: a fixing cover 5, which is provided at the end of the rotating shaft 211 to restrict the axial movement of the toothed sensor 3 along the rotating shaft 211; correspondingly, the mounting groove 11 is provided with a rotating hole 112 corresponding to the fixing cover 5, and the fixing cover 5 is provided with a protrusion 51 corresponding to the rotating hole 112. The protrusion 51 is rotatably connected to the rotating hole 112, so that the rotating shaft 211 is rotatably connected to the mounting groove 11.

[0045] In actual use, the rotation of the roller 2 triggers the encoding module 6 to perform encoding operation and output a signal. The encoding module 6 is set on the base 1 corresponding to the roller 2. The input end of the encoding module 6 forms an optoelectronic connection with the roller 2. The output end of the encoding module 6 forms a signal connection with the data end of the device through the flexible circuit board 61. The encoding module 6 encodes according to the rotation speed of the roller 2 and outputs a signal of the corresponding frequency.

[0046] The following describes the scrolling state and switching process of the aforementioned roller assembly:

[0047] When the roller 2 is in a slow-rotating or stationary state, the gravity on the pawl 4 is greater than the centrifugal force, causing the pawl 4 located on the upper side of the rotating shaft 211 to contact the tooth sensor 3 under the action of gravity. That is, the pawl 42 of the pawl 4 located on the upper side of the rotating shaft 211 contacts the tooth 31 of the tooth sensor 3 under the action of gravity. As the roller 2 rotates slowly, the tooth 31 contacts the pawl 42, making the resistance on the roller 2 greater during slow rotation, and causing the roller assembly to be in a ratchet rolling state.

[0048] When the roller 2 is rotating rapidly, the centrifugal force on the pawl 4 is greater than the gravity, causing the pawl 4 located on the upper side of the rotating shaft 211 to separate from the tooth sensor 3 under the action of centrifugal force. That is, the pawl 42 of the pawl 4 located on the upper side of the rotating shaft 211 separates from the tooth 31 of the tooth sensor 3 under the action of centrifugal force. As a result, the tooth 31 separates from the pawl 42 during the rapid rotation of the roller 2, making the resistance encountered by the roller 2 during the slow rotation less, and allowing the roller assembly to be in a free rolling state.

[0049] When switching from ratchet rolling degree of freedom to free rolling degree of freedom, simply increase the speed of rotating roller 2 to increase the centrifugal force on pawl 4, which will cause pawl 4 located on the upper side of rotating shaft 211 to separate from tooth sensor 3 under the action of centrifugal force; when switching from free rolling degree of freedom to ratchet rolling degree of freedom, simply decrease the speed of rotating roller 2 to decrease the centrifugal force on pawl 4, which will cause pawl 4 located on the upper side of rotating shaft 211 to separate from tooth sensor 3 under the action of gravity.

[0050] As can be seen from the above settings, the ratchet rolling degree of freedom and the free rolling degree of freedom in this application are the two extreme states of the degree of freedom of this roller assembly. The degree of freedom of this roller assembly can gradually change with the rotation speed of roller 2. That is, the degree of freedom of this roller assembly is a continuous range value. Compared with the prior art, which can only switch between two extreme states of degree of freedom, this roller assembly has a degree of freedom that can adapt to various scrolling speeds of the user, so that the roller assembly always operates under a degree of freedom that is adapted to the user's scrolling speed, and the user always has a user experience that matches the speed of their rotation of roller 2.

[0051] Second Embodiment

[0052] Based on the same concept, this utility model also provides an electronic device that uses the roller assembly as described in the above embodiments.

[0053] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0054] Although alternative embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make further changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the alternative embodiments as well as all changes and modifications falling within the scope of the present invention.

[0055] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used merely to distinguish one entity from another, and do not necessarily require or imply any such actual relationship or order between these entities. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the article or terminal device that includes that element.

[0056] The technical solution provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the principle and implementation of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A roller assembly, characterized by include: Base (1); Roller (2), which is rotatably connected to the base (1), and the rotation of the roller (2) triggers the coding operation; A toothed sensor (3) is provided corresponding to the rotating shaft (211) of the roller (2); A plurality of sliding claw components (4) are movably connected to the roller (2). The sliding claw components (4) are in contact with the toothed sensor (3) under the action of gravity, and the sliding claw components (4) are separated from the toothed sensor (3) under the action of centrifugal force.

2. The roller assembly of claim 1, wherein, The sliding claw (4) is provided with a pawl (42) facing the rotating shaft (211), and the tooth sensor (3) is provided with a tooth (31) on the upper side corresponding to the rotating shaft (211). The sliding claw (4) contacts the tooth sensor (3) through the pawl (42) and the tooth (31).

3. The roller assembly of claim 2, wherein, The roller (2) is provided with a groove (210) corresponding to the sliding claw (4). The sliding claw (4) includes a mounting part (41), and the pawl (42) is disposed at one end of the mounting part (41) facing the rotating shaft (211). The sliding claw (4) is movably connected to the roller (2) through the mounting part (41) and is movably disposed in the groove (210).

4. The roller assembly of claim 3, wherein, The groove (210) is arranged around the rotating shaft (211), and the sliding claw (4) moves toward the end of the groove (210) away from the rotating shaft (211) under the action of centrifugal force and separates from the toothed member (3).

5. The roller assembly of claim 3, wherein, The roller (2) includes a wheel body (21) and a wheel cover (22). The groove (210) is disposed on the wheel body (21), and the wheel cover (22) is disposed on the wheel body (21) so that the pawl (4) can only move along the groove (210).

6. The roller assembly of claim 5, wherein, The rotating shaft (211) is disposed on the wheel body (21), and the wheel cover (22) is provided with a through hole (220) corresponding to the rotating shaft (211) on one side of the wheel body (21). The rotating shaft (211) on one side of the wheel body (21) passes through the through hole (220) and is rotatably connected to the base (1).

7. The roller assembly of claim 2, wherein, The width of the claw (42) gradually increases in the direction away from the rotating shaft (211). As the sliding claw (4) gradually separates from the toothed component (3) under the action of centrifugal force, the width of the part of the claw (42) that contacts the tooth (31) gradually decreases.

8. The roller assembly of any one of claims 1 to 7, wherein, The sliding claw (4) is arranged around the rotating shaft (211). Under the action of centrifugal force, the sliding claw (4) moves away from the rotating shaft (211) and separates from the toothed sensor (3).

9. The roller assembly of any one of claims 1 to 7, wherein, The base (1) is provided with a mounting groove (11) corresponding to the rotating shaft (211), and the roller (2) is rotatably connected to the base (1) through the rotating shaft (211) and the mounting groove (11).

10. The roller assembly of claim 9, wherein, The mounting groove (11) is provided with a snap-fit ​​position (111) corresponding to the tooth sensor (3), and the tooth sensor (3) is provided with a snap-fit ​​part (32) corresponding to the snap-fit ​​position (111). The tooth sensor (3) is snapped into the snap-fit ​​position (111) through the snap-fit ​​part (32) and connected to the base (1). And / or, further comprising: a fixing cover (5), the fixing cover (5) being disposed at the end of the rotating shaft (211) to restrict the toothed element (3) from moving axially along the rotating shaft (211), the mounting groove (11) being provided with a rotating hole (112) corresponding to the fixing cover (5), the fixing cover (5) being provided with a protrusion (51) corresponding to the rotating hole (112), the protrusion (51) being rotatably connected to the rotating hole (112) so that the rotating shaft (211) is rotatably connected to the mounting groove (11).

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