Linear motion assembly
By setting a limiting structure in the linear motion component, the friction and misalignment problems of the sliding component are solved, simplifying the design, reducing costs, and improving sliding performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SAINT GOBAIN PERFORMANCE PLASTICS CORP
- Filing Date
- 2025-05-20
- Publication Date
- 2026-04-28
AI Technical Summary
Existing linear motion components have a high coefficient of friction for sliding components and suffer from leakage and misalignment problems, resulting in inefficient frictional sliding performance. Furthermore, existing designs are complex and costly.
Limiting structures are set in the first and second components to directly constrain the sliding components through protrusions or grooves, simplifying the design and reducing the number of parts.
This achieves effective constraint of the sliding component, simplifies the assembly process, reduces cost and complexity, and maintains good sliding performance.
Smart Images
Figure CN224174425U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a linear motion component. Background Technology
[0002] Linear motion components primarily consist of two parts capable of sliding relative to each other. They are applicable to various household appliances as well as other applications such as vehicles. In the passenger compartment of a vehicle, to accommodate different driver or passenger body shapes and ensure convenient operation or comfortable seating, linear motion components are installed in certain seat adjustment mechanisms to facilitate the adjustment of the position of certain components on the vehicle seat, allowing these components to slide longitudinally or laterally. To enable the linear motion component to slide with minimal friction, one or more sliding members are arranged between the two parts to promote translation.
[0003] In the prior art, sliding components typically comprise bearings made of hardened steel (e.g., sliding bearings, ball bearings, and cage ball bearings). Paints, coatings, finishing agents, and lubricants such as greases are applied to the bearings to reduce the coefficient of friction and promote sliding. These materials may leak or peel off during installation and use, contaminating the component, abrading parts during translation, and introducing carriers of particulate matter such as dust and debris. Furthermore, over time, such sliding components may misalign, leading to insufficient force control and tolerance compensation, resulting in inefficient sliding performance within linear motion components. Therefore, existing designs achieve the limiting of sliding components by adding separate parts. However, for many existing designs, there remains room for further improvement, for example, in terms of assembly complexity, manufacturing difficulty, and increased costs. Utility Model Content
[0004] In view of the above problems, the present invention provides a linear motion component, which simplifies the design of the linear motion component, improves assembly efficiency, and reduces material costs by directly setting the limiting structure on at least one of the first and second components.
[0005] To this end, the present invention provides a linear motion component, comprising: a first component; a second component; and at least one sliding component, the at least one sliding component being disposed between the first component and the second component, wherein the at least one sliding component is adapted to slide relative to at least one of the first component and the second component along a sliding direction, and at least one of the first component and the second component includes at least one limiting structure integrally disposed with the first component or the second component, the limiting structure being adapted to constrain the at least one sliding component in the sliding direction.
[0006] Based on the above technical concept, the present invention may further include any one or more of the following optional forms.
[0007] In some alternative forms, the limiting structure is in direct contact with the at least one sliding member.
[0008] In some alternative forms, the limiting structure includes a protrusion integrally disposed on the surface of at least one of the first member and the second member.
[0009] In some alternative forms, the first member and / or the second member are provided with a notch corresponding to the protrusion.
[0010] In some alternative forms, the protrusion has a dovetail shape in a cross section perpendicular to the sliding direction.
[0011] In some alternative forms, the limiting structure includes a recess / protrusion corresponding to a protrusion / recess on the at least one sliding member.
[0012] In some alternative forms, the linear motion component includes multiple sliding members.
[0013] In some alternative forms, the linear motion component includes a plurality of limiting structures integrally disposed on at least one of the first member and the second member.
[0014] In some alternative forms, the limiting structure is in direct contact with the at least one sliding member, which is constrained only at its two ends along the sliding direction.
[0015] In some alternative forms, the first member and / or the second member are adapted to constrain the at least one sliding member in a direction perpendicular to the sliding direction.
[0016] In some alternative forms, at least one of the first member and the second member has a concave surface adapted to receive the sliding member, the concave surface being adapted to constrain the at least one sliding member in a direction perpendicular to the sliding direction.
[0017] In some alternative forms, the first component or the second component is integrally provided with a plurality of the limiting structures along the sliding direction.
[0018] In some alternative forms, the dimension of the first member in the sliding direction is smaller than the dimension of the second member in the sliding direction, and the limiting structure is disposed on the first member to constrain the at least one sliding member in the sliding direction.
[0019] In some alternative forms, the second member forms a track extending along the sliding direction, and the first member is slidably disposed within the track by the at least one sliding member.
[0020] In some alternative forms, the sliding member includes a sliding pin, the sliding pin including a base and a low-friction material disposed at least partially around the base.
[0021] In some alternative forms, the sliding pin is configured as a column with its axial direction corresponding to the sliding direction.
[0022] In some alternative forms, the sliding pin is cylindrical; and / or, the low-friction material comprises a fluoropolymer; and / or, the substrate comprises a rigid material.
[0023] In some alternative forms, the ratio of the dimension of the limiting structure in the direction perpendicular to the sliding direction to the dimension of the sliding member in the direction perpendicular to the sliding direction is less than 1.
[0024] In some alternative forms, the ratio of the dimension of the limiting structure in the direction perpendicular to the sliding direction to the dimension of the sliding member in the direction perpendicular to the sliding direction is less than 0.5.
[0025] A second aspect of this invention provides another linear motion component, comprising: a first component; a second component; and at least one sliding component disposed between the first component and the second component, wherein the at least one sliding component is adapted to slide relative to at least one of the first component and the second component along a sliding direction, and at least one of the first component or the second component includes at least one protrusion adapted to constrain the at least one sliding component in the sliding direction.
[0026] In some alternative forms, the at least one protrusion is integrally disposed on at least one of the first member and the second member.
[0027] In some alternative forms, the at least one protrusion is in direct contact with the at least one sliding member.
[0028] In some alternative forms, the at least one protrusion is integrally disposed on the surface of at least one of the first member and the second member.
[0029] In some alternative forms, the first member and / or the second member are provided with a notch corresponding to the at least one protrusion.
[0030] In some alternative forms, the at least one protrusion has a dovetail shape in a cross section perpendicular to the sliding direction.
[0031] In some alternative forms, the linear motion component includes multiple sliding members.
[0032] In some alternative forms, the linear motion component includes a plurality of protrusions integrally disposed on at least one of the first member and the second member.
[0033] In some alternative forms, the at least one protrusion is in direct contact with the at least one sliding member, which is constrained only at its two ends along the sliding direction.
[0034] In some alternative forms, the first member and / or the second member are adapted to constrain the at least one sliding member in a direction perpendicular to the sliding direction.
[0035] In some alternative forms, at least one of the first member and the second member has a concave surface adapted to receive the sliding member, the concave surface being adapted to constrain the at least one sliding member in a direction perpendicular to the sliding direction.
[0036] In some alternative forms, a plurality of protrusions are integrally provided in the first or second component along the sliding direction.
[0037] In some alternative forms, the dimension of the first member in the sliding direction is smaller than the dimension of the second member in the sliding direction, and the at least one protrusion is disposed on the first member to constrain the at least one sliding member in the sliding direction.
[0038] In some alternative forms, the second member forms a track extending along the sliding direction, and the first member is slidably disposed within the track by the at least one sliding member.
[0039] In some alternative forms, the sliding member includes a sliding pin, the sliding pin including a base and a low-friction material disposed at least partially around the base.
[0040] In some alternative forms, the sliding pin is configured as a column with its axial direction corresponding to the sliding direction.
[0041] In some alternative forms, the sliding pin is cylindrical; and / or, the low-friction material comprises a fluoropolymer; and / or, the substrate comprises a rigid material.
[0042] In some alternative forms, the ratio of the dimension of the protrusion in the direction perpendicular to the sliding direction to the dimension of the sliding member in the direction perpendicular to the sliding direction is less than 1.
[0043] In some alternative forms, the ratio of the dimension of the protrusion in the direction perpendicular to the sliding direction to the dimension of the sliding member in the direction perpendicular to the sliding direction is less than 0.5.
[0044] Compared to existing technologies, the linear motion assembly according to this invention offers several beneficial technical advantages, particularly in that the sliding member is positioned between the first and second members, wherein the first and / or second members include a limiting member integrally disposed thereon and adapted to constrain the sliding member in the sliding direction. This allows for mutual sliding between the first and second members to be achieved using only three parts: the first member, the second member, and the sliding member. No additional parts are needed to limit the sliding member, simplifying the design of existing linear motion assemblies, reducing the number of parts required for linear motion, lowering the cost of linear motion components, and reducing assembly complexity and speed during assembly. Attached Figure Description
[0045] Other features and advantages of this invention will be better understood through the following detailed description of preferred embodiments in conjunction with the accompanying drawings. In the drawings, the same reference numerals denote the same or similar parts.
[0046] Figure 1 This is a schematic diagram of the structure of a linear motion component provided in one embodiment of the present invention.
[0047] Figure 2 This is a schematic diagram of the decomposed linear motion component.
[0048] Figure 3 For along Figure 1 A schematic diagram of the cross-sectional structure taken from section AA.
[0049] Figure 4 For along Figure 1 A schematic diagram of the cross-sectional structure taken from section BB.
[0050] Figure 5 The graph shows the sliding force results of a cyclic durability test on a linear motion component. In the graph, the horizontal axis represents the number of cycles, and the vertical axis represents the sliding force (in Newtons).
[0051] Figure 6 An exploded view of a linear motion component provided for another embodiment of the present invention.
[0052] Figure 7 for Figure 6 A top view of the linear motion component shown.
[0053] Figure 8 This is a schematic diagram of the sliding component of the linear motion assembly.
[0054] Figure 9 This is another embodiment of the present utility model. Figure 1 A schematic diagram of the cross-sectional structure taken from section BB.
[0055] Figure 10 This is an exploded view of a linear motion component provided in another embodiment of the present invention.
[0056] Figure 11 for Figure 10 The diagram shows the structure of the first component.
[0057] The elements in the accompanying drawings are shown for simplicity and clarity and are not necessarily drawn to exact scale. It should be understood that these drawings are not only for explaining and illustrating the present invention, but also, where necessary, for defining the present invention. Detailed Implementation
[0058] The implementation and use of specific embodiments are discussed in detail below. However, it should be understood that the specific embodiments discussed are merely illustrative of particular ways of implementing and using this utility model, and are not intended to limit the scope of this utility model. The terms "first," "second," etc., are used to describe various elements without limiting the positional, temporal, or importance relationships of these elements; such terms are only used to distinguish one element from another.
[0059] Furthermore, the terms "an" or "a" are used to describe the elements and components described herein. This is done solely for convenience and to give a general meaning to the scope of the invention. This description should be understood to include one, at least one, or vice versa, unless explicitly stated otherwise. For example, when a single item is described herein, more than one item may be used instead of a single item. Similarly, in cases where more than one item is described herein, a single item may be used instead of the more than one item.
[0060] The preferred embodiments of this utility model will now be described with reference to the accompanying drawings.
[0061] Figure 1 and Figure 2 A linear motion component 10 is shown, wherein Figure 2 for Figure 1 A diagram showing the breakdown of the diagram. (See diagram below.) Figure 1 and Figure 2 As shown, the linear motion component 10 mainly includes a first component 100, a second component 200, and at least one sliding component 300 disposed between the first component 100 and the second component 200. The first component 100 and the second component 200 can slide relative to each other approximately along the X direction shown in the figure. Generally, the X direction is a straight line direction, but in some applications, the X direction may also include a curved or broken line direction.
[0062] The sliding member 300 is used to slide relative to at least one of the first member 100 or the second member 200 along the X-direction. To prevent the sliding member 300 from misaligning or sliding out of the space between the first member 100 and the second member 200 during sliding, at least one of the first member 100 and the second member 200 further includes a limiting structure 400 integrally formed therewith, which is adapted to constrain the sliding member 300 in the X-direction. Thus, the linear motion assembly 10 can achieve sliding of the first member 100 relative to the second member 200 using only three parts: the first member 100, the second member 200, and the sliding member 300, while simultaneously limiting the sliding member 300 between the first member 100 and the second member 200 in the X-direction, without requiring additional parts to limit the sliding member 300. This simplifies the design of existing linear motion assemblies 10, reduces the number of parts in linear motion, lowers the cost of linear motion assemblies 10, reduces assembly complexity during assembly, and improves assembly cycle time. Furthermore, in the embodiments of this utility model, the limiting constraint of the sliding member 300 in the X direction is a relative concept, which means that the sliding member 300 is constrained relative to the first member 100 or the second member 200 within a certain interval of the first member 100 or the second member 200 in the X direction, rather than constraining the sliding member 300 to a certain absolutely static position in the X direction.
[0063] Those skilled in the art will understand that the linear motion assembly 10 according to embodiments of the present invention may include any system having two adjacent members having linear motion relative to each other. As described in the present invention, linear motion assemblies include, but are not limited to, seat rail assemblies, seat cushion depth adjustment assemblies, seat length adjustment assemblies, seat back adjustment assemblies, adjustable sliding consoles, sunroof sliding mechanisms, window height adjustment systems, sliding doors, telescopic assemblies such as steering systems, sliding shelves and supports such as those present in dishwashing machines and oven racks, sliding drawers and cabinets, sliding surfaces, linear actuators, motors, gears, office components such as printers, fax machines, scanners, copiers and components performing multiple such operations, assembly processes, automated machines and components, or any other similar components or assemblies that combine linear motion exhibited between two or more members. Those skilled in the art will also recognize that while this disclosure relates to linear motion assemblies, certain applications require rotational flexibility, where the sliding members provide low-friction surfaces for linear and rotational translation.
[0064] The limiting structure 400 preferably limits the sliding member 300 by direct contact with it. (Continue to refer to...) Figure 2The limiting structure 400 includes a protrusion 410, which is formed by protruding from the surface of at least one of the first member 100 and the second member 200. The protrusion 410 can constrain the sliding member 300 by abutting against it in the X direction. The sliding member 300 is relatively fixed to the first member 100 or the second member 200 where the protrusion 410 is located. A limited movement gap can also be reserved between the protrusion 410 and the sliding member 300, so that the sliding member 300 can have a certain amount of movement in the X direction with the first member 100 and / or the second member 200 where the protrusion 410 is located under the constraint of the protrusion 410, but the sliding member 300 cannot slide out of the space between the first member 100 and the second member 200.
[0065] The protrusion of the protrusion 410 can be achieved through additive manufacturing or deformation (e.g., stamping, bending, punching, deformation, deep drawing, casting, injection molding, or welding). Preferably, for ease of manufacturing, the protrusion 410 can be formed by stamping. During deformation, due to the limited ductility of the material, a notch 411 will be formed in the first member 100 and / or the second member 200 at the position corresponding to the protrusion 410. The notch 411 is generally a non-closed notch partially surrounding the protrusion 410. The cross-section of the protrusion 410 perpendicular to the X-direction can be of various shapes, but it is typically formed into a dovetail shape during manufacturing. A dovetail shape means that the protrusion 410 protrudes from the edge of the first member 100 and / or the second member 200, and when viewed from the X-direction, the protrusion 410 and its protruding edge form a dovetail-like shape. The profile of the protrusion 410 can be circular, triangular, rectangular, or trapezoidal.
[0066] In some embodiments, the linear motion component 10 includes a plurality of sliding members 300, for example in Figure 2 In this linear motion assembly 10, between the first component 100 and the second component 200, two sliding components 300 are arranged on each side along the X-direction, which can make the force on the sliding components 300 more uniform during sliding. The linear motion assembly 10 includes a plurality of limiting structures 400 integrally disposed in at least one of the first component 100 and the second component 200. For example, in Figure 2In this system, for each sliding member 300, a limiting structure 400 integrally formed with the first member 100 and / or the second member 200 is provided at both ends along the X-direction to ensure that each sliding member 300 can achieve a limiting effect along the X-direction during the sliding process of the linear motion assembly 10. For the sliding member 300, retaining a certain amount of movement in the direction perpendicular to the X-direction does not affect its function in the linear motion assembly 10. In the X-direction, the sliding member 300 must be in direct contact with at least one limiting structure 400. For example, one limiting structure 400 can be used to limit a certain position in the middle of the sliding member 300, or two limiting structures 400 can be used to limit both ends of the sliding member 300, both achieving constraint at both ends in the X-direction.
[0067] Figure 3 For along Figure 1 A schematic diagram of the cross-sectional structure taken from section AA. Figure 3 The plane shown is a plane perpendicular to the X-direction, as shown below. Figure 3 As shown, through the corresponding structures of the first component 100 and / or the second component 200, it is possible to Figure 3 The planar constraint sliding member 300 is shown. Preferably, the opposing surfaces of the first member 100 and / or the second member 200 are formed into concave shapes, that is, by having concave surfaces 101, 201 of the first member 100 and / or the second member 200 that can accommodate the sliding member 300, it is possible to... Figure 3 The in-plane constrained sliding member 300 is shown.
[0068] Figure 4 For along Figure 1 A schematic diagram of the cross-sectional structure taken from section BB. Figure 4 The plane shown is a plane passing through the X-direction. To simplify design and facilitate manufacturing, multiple limiting structures 400 are integrally disposed along the X-direction on the first component 100 or the second component 200, for example... Figure 2 and Figure 4 In the linear motion assembly 10 shown, a plurality of limiting structures 400 are integrally disposed on one of the axially extending edges of the first member 100. Integrating the plurality of limiting structures 400 integrally along the X-direction on the edge of the first member 100 also facilitates processing.
[0069] In some embodiments, the dimension of the first member 100 in the X direction is smaller than that of the second member 200 in the X direction, and the limiting structure 400 is disposed on the member with the smaller dimension in the X direction to constrain the sliding member 300 in the X direction. The second member 200 with the longer dimension in the X direction forms a track extending in the X direction, and the first member 100 is slidably disposed in the track by at least one sliding member 300. In the application of the linear motion assembly 10 in a vehicle, the linear motion assembly 10 can serve as a seat guide rail. Typically, the longer second member 200 is disposed below and connected to the body sheet metal to form an outer track extending longitudinally along the vehicle. The shorter first member 100 is disposed above, fixed to the seat, and arranged as an inner track within the track cavity of the second member 200. The first member 100 and the second member 200 enclose two cavities 110 extending in the X direction, and multiple sliding members 300 are symmetrically disposed within these two cavities. This allows for uniform load distribution along the lateral sides of the first member 100 and the second member 200, resulting in stronger structural strength. The first component 100 is connected to the linear electric cylinder. A complete sliding cycle is achieved by the first component 100 sliding 95mm relative to the second component 200 in one direction along the X-axis, performing a reciprocating motion. The sliding force of the linear motion assembly 10 is tested, and the average sliding force of the first component 100 in each sliding cycle is taken as the sliding force for each cycle. The linear motion assembly 10 is continuously subjected to 20,000 sliding cycles to simulate the change in sliding force over its lifespan. The resulting curve showing the change in sliding force with the number of sliding cycles is shown below. Figure 5 As shown. According to Figure 5 As can be seen from the sliding force performance shown, the linear motion component 10 provided by this utility model has a relatively stable sliding force during 20,000 sliding cycles. Its sliding force performance is comparable to that of linear motion components with other auxiliary components in the prior art, and it can meet the requirements of the linear motion component 10 as a vehicle seat guide rail.
[0070] In some other embodiments, such as Figure 6 and Figure 7 As shown, the longer second component 200 can be set as the inner track, and the shorter first component 100 can be set as the outer track.
[0071] like Figure 8As shown, the sliding member 300 includes a sliding pin 320. The sliding pin 320 includes a base 321 and a low-friction material 322 disposed at least partially around the base 321. The base 321 may include a rigid material, such as, for example, a metal, alloy, ceramic, or polymer. In this respect, at least one sliding member of the sliding member is resistant to significant deformation when subjected to a loaded force condition, such as a lateral force applied from an adjacent component to at least one sliding member of the sliding member. In a particular embodiment, at least one sliding member of the sliding member may include steel, such as spring steel. The low-friction material may include a fluoropolymer, such as polytetrafluoroethylene (PTFE). Other exemplary fluoropolymers may include fluorinated propylene (FEP), polyvinylidene fluoride (PVDF), perfluoroalkoxy (PFA), a terpolymer (THV) of tetrafluoroethylene, hexafluoropropylene, and vinylidene fluoride, polychlorotrifluoroethylene (PCTFE), ethylene tetrafluoroethylene copolymer (ETFE), ethylene-chlorotrifluoroethylene copolymer (ECTFE), or any combination thereof. Additionally, other sliding materials may be used, such as those sold by the applicant under trademarks. In another embodiment, at least one of the sliding members may comprise polyimide or thermoplastic. In several embodiments, the substrate may be at least partially coated with a low-friction material on at least one of the sliding members, or vice versa. In one embodiment, at least one of the sliding members may be free of externally applied lubricant. In one embodiment, at least one of the sliding members may be self-lubricating. In some embodiments, the sliding pin 320 is configured as a cylinder, with the axial direction of the cylinder corresponding to the X-direction. In a particular embodiment, the sliding pin 320 is configured as a cylinder, and the sliding pin 320 may have substantially the same friction structure regardless of the angle at which it is mounted in the linear motion assembly 10.
[0072] by Figure 3 Taking the surface shown as an example, in the direction perpendicular to the X-axis, the limiting structure 400 only needs a small size to limit the sliding member 300. Generally, the size of the limiting structure 400 is smaller than the size of the sliding member 300, that is, in... Figure 3 In the plane shown (perpendicular to the X direction), the maximum dimension of the limiting structure 400 is smaller than the maximum dimension of the sliding member 300. Further, the ratio of the dimension of the limiting structure 400 to the dimension of the sliding member 300 is less than 0.5. In some embodiments, the ratio of the dimension of the limiting structure 400 to the dimension of the sliding member 300 may be set to less than 0.3.
[0073] In some embodiments, such as Figure 9As shown, the limiting structure 400 includes a groove 420 integrally disposed on the surface of at least one of the first member 100 and the second member 200 to accommodate the sliding member 300, and the groove 420 has an end for constraining the sliding member 300 in the X direction, and thus the end may also correspond to the protrusion 410.
[0074] In other embodiments, the limiting structure 400 includes a recess / protrusion corresponding to a protrusion / recess on the sliding member 300; that is, one of the limiting structure 400 and the sliding member 300 includes a protrusion, and the other of the limiting structure 400 and the sliding member 300 includes a recess adapted to receive the protrusion, wherein the recess is adapted to accommodate the protrusion in the X direction, and the recess and the protrusion can constrain each other in the X direction. One embodiment is as follows: Figure 10 and Figure 11 As shown, the limiting structure 400 includes a protrusion 120 disposed on the first member 100, and a recess 310 disposed on the sliding member 300 including a recess adapted to receive the protrusion 120. The protrusion 120 and the recess 310 correspond to each other to form a constraint on the sliding member 300 in the X direction.
[0075] In some embodiments, the present invention also provides another linear motion assembly 10, including a first member 100, a second member 200, and at least one sliding member 300 disposed between the first member 100 and the second member 200. The first member 100 and the second member 200 are generally slidable relative to each other along the X direction shown in the figure. The sliding member 300 is used to slide relative to at least one of the first member 100 or the second member 200 along the X direction. At least one of the first member 100 and the second member 200 further includes at least one protrusion adapted to constrain the sliding member 300 in the X direction. The protrusion may be configured to be integrally disposed with the first member 100 and / or the second member 200, such that the protrusion may be arranged in a manner similar to the limiting structure 400 described above. The protrusion may also be attached to the first member 100 and / or the second member 200 by various processing methods through separate parts.
[0076] In some embodiments, this disclosure also provides a method for manufacturing a linear motion component, the method comprising the steps of: providing a first component 100; manipulating the first component 100 to have at least one protrusion 410 and / or an integrally formed limiting structure 400; placing at least one sliding member 300 close to the at least one protrusion 410 and / or the integrally formed limiting structure 400 of the first component 100 to constrain the at least one sliding member 300 in the X direction; providing a second component 200; and placing the first component 100, on which the at least one sliding member 300 is disposed, close to the second component 200 to form a linear motion component 10, wherein the at least one sliding member 300 is adapted to slide relative to at least one of the first component 100 and the second component 200 in the X direction.
[0077] In some embodiments, this disclosure also proposes another method for manufacturing a linear motion component, the method comprising the steps of: providing a first component 100; placing at least one sliding component 300 close to the first component 100; manipulating the first component 100 to have at least one protrusion 410 close to the at least one sliding component 300 and / or an integrally formed limiting structure 400 to constrain the at least one sliding component 300 in the X direction; providing a second component 200; and placing the first component 100, on which the at least one sliding component 300 is disposed, close to the second component 200 to form a linear motion component 10, wherein the at least one sliding component 300 is adapted to slide relative to at least one of the first component 100 and the second component 200 in the X direction.
[0078] Both manufacturing methods disclosed herein can manufacture the linear motion assembly 10. The first method involves pre-setting the protrusion 410 and / or the limiting structure 400 on the first member 100, so that when placing the sliding member 300, it needs to be aligned with the position of the protrusion and / or the limiting structure 400. The second method involves first placing the sliding member 300 close to the first member 100, and then manipulating the first member 100 to give it the protrusion and / or the limiting structure 400. Regardless of the manufacturing method, no additional auxiliary components need to be installed to obtain the linear motion assembly 10 with the sliding member 300.
[0079] Specifically, the first component 100 and / or the second component 200 are formed by an extrusion process. The first component 100 and / or the second component 200 may have a shape that extends along the sliding direction, thus making them suitable for the extrusion process. The extrusion process enables continuous production of materials, allowing for long-term continuous operation, greatly improving production efficiency and reducing production costs.
[0080] In some embodiments, at least one protrusion 410 or limiting structure 400 may be integrally disposed on the first member 100 by at least one of stamping, bending, punching, deformation, deep drawing, casting, injection molding, or welding. Preferably, the limiting structure 400 includes at least one protrusion 410, which is integrally disposed on the surface of the first member 100 by stamping. After the stamping process, a notch 411 corresponding to the protrusion 410 is formed on the first member 100. The notch 411 is generally a non-closed notch partially surrounding the protrusion 410. The shape of the punch for stamping the protrusion 410 may be selected as circular, triangular, rectangular, or trapezoidal, so that the surface of the protrusion 410 is circular, triangular, rectangular, or trapezoidal.
[0081] Many different aspects and embodiments are possible. Some of these aspects and embodiments are described below. After reading this specification, those skilled in the art will recognize that those aspects and embodiments are merely illustrative and do not limit the scope of this invention. Embodiments can be based on any one or more of the embodiments listed below.
[0082] Implementation Scheme 1: A linear motion component, comprising: a first component; a second component; and at least one sliding component disposed between the first component and the second component, wherein the at least one sliding component is adapted to slide relative to at least one of the first component and the second component along a sliding direction, and at least one of the first component and the second component includes at least one limiting structure integrally disposed with the first component or the second component, the limiting structure being adapted to constrain the at least one sliding component in the sliding direction.
[0083] Implementation Scheme 2: According to the linear motion component of Implementation Scheme 1, the limiting structure is in direct contact with the at least one sliding member.
[0084] Implementation Scheme 3: According to the linear motion assembly of Implementation Scheme 1, the limiting structure includes a protrusion, which is integrally disposed on the surface of at least one of the first component and the second component.
[0085] Implementation Scheme 4: According to the linear motion assembly of Implementation Scheme 3, the first member and / or the second member are provided with notches corresponding to the protrusions.
[0086] Implementation Scheme 5: According to the linear motion component of Implementation Scheme 3, the protrusion has a dovetail shape in a cross section perpendicular to the sliding direction.
[0087] Implementation Scheme 6: According to the linear motion assembly of Implementation Scheme 1, the limiting structure includes a recess / protrusion corresponding to a protrusion / recess on the at least one sliding member.
[0088] Implementation Scheme 7: The linear motion component according to Implementation Scheme 1 includes multiple sliding members.
[0089] Implementation Scheme 8: The linear motion component according to Implementation Scheme 1 includes a plurality of limiting structures integrally disposed in at least one of the first component and the second component.
[0090] Implementation Scheme 9: According to the linear motion assembly of Implementation Scheme 1, the limiting structure is in direct contact with the at least one sliding member, and the at least one sliding member is constrained only at its two ends along the sliding direction.
[0091] Implementation Scheme 10: According to the linear motion assembly of Implementation Scheme 1, the first member and / or the second member are adapted to constrain the at least one sliding member in a direction perpendicular to the sliding direction.
[0092] Implementation Scheme 11: According to the linear motion assembly of Implementation Scheme 1, at least one of the first member and the second member has a concave surface adapted to accommodate the sliding member, the concave surface being adapted to constrain the at least one sliding member in a direction perpendicular to the sliding direction.
[0093] Implementation Scheme 12: According to the linear motion component of Implementation Scheme 1, the first component or the second component is integrally provided with a plurality of the limiting structures along the sliding direction.
[0094] Implementation Scheme 13: According to the linear motion assembly of Implementation Scheme 1, the dimension of the first member in the sliding direction is smaller than the dimension of the second member in the sliding direction, and the limiting structure is disposed on the first member to constrain the at least one sliding member in the sliding direction.
[0095] Implementation Scheme 14: According to the linear motion assembly of Implementation Scheme 1, the second member forms a track extending along the sliding direction, and the first member is slidably disposed within the track by the at least one sliding member.
[0096] Implementation Scheme 15: According to the linear motion assembly of Implementation Scheme 1, the sliding member includes a sliding pin, the sliding pin including a base and a low-friction material disposed at least partially around the base.
[0097] Implementation Scheme 16: According to the linear motion component of Implementation Scheme 15, the sliding pin is configured as a column, and its axial direction corresponds to the sliding direction.
[0098] Implementation Scheme 17: In the linear motion assembly according to Implementation Scheme 15, the sliding pin is configured as cylindrical; and / or, the low-friction material comprises a fluoropolymer; and / or, the substrate comprises a rigid material.
[0099] Implementation Scheme 18: According to the linear motion component of Implementation Scheme 1, the ratio of the dimension of the limiting structure in the direction perpendicular to the sliding direction to the dimension of the sliding member in the direction perpendicular to the sliding direction is less than 1.
[0100] Implementation Scheme 19: According to the linear motion component of Implementation Scheme 1, the ratio of the dimension of the limiting structure in the direction perpendicular to the sliding direction to the dimension of the sliding member in the direction perpendicular to the sliding direction is less than 0.5.
[0101] Implementation Scheme 20: A linear motion component, comprising: a first component; a second component; and at least one sliding component disposed between the first component and the second component, wherein the at least one sliding component is adapted to slide relative to at least one of the first component and the second component along a sliding direction, and at least one of the first component or the second component includes at least one protrusion adapted to constrain the at least one sliding component in the sliding direction.
[0102] Implementation Scheme 21: According to the linear motion assembly of Implementation Scheme 20, the at least one protrusion is integrally disposed on at least one of the first component and the second component.
[0103] Implementation Scheme 22: In the linear motion assembly according to Implementation Scheme 20, the at least one protrusion is in direct contact with the at least one sliding member.
[0104] Implementation Scheme 23: According to the linear motion assembly of Implementation Scheme 20, the at least one protrusion is integrally disposed on the surface of at least one of the first member and the second member.
[0105] Implementation Scheme 24: According to the linear motion assembly of Implementation Scheme 20, the first member and / or the second member are provided with a notch corresponding to the at least one protrusion.
[0106] Implementation Scheme 25: According to the linear motion component of Implementation Scheme 20, the at least one protrusion has a dovetail shape in a cross section perpendicular to the sliding direction.
[0107] Implementation Scheme 26: The linear motion component according to Implementation Scheme 20 includes a plurality of sliding members.
[0108] Implementation Scheme 27: The linear motion assembly according to Implementation Scheme 20 includes a plurality of protrusions integrally disposed on at least one of the first component and the second component.
[0109] Implementation Scheme 28: According to the linear motion assembly of Implementation Scheme 20, the at least one protrusion is in direct contact with the at least one sliding member, and the at least one sliding member is constrained only at its two ends along the sliding direction.
[0110] Implementation Scheme 29: According to the linear motion assembly of Implementation Scheme 20, the first member and / or the second member are adapted to constrain the at least one sliding member in a direction perpendicular to the sliding direction.
[0111] Implementation Scheme 30: According to the linear motion assembly of Implementation Scheme 20, at least one of the first member and the second member has a concave surface adapted to accommodate the sliding member, the concave surface being adapted to constrain the at least one sliding member in a direction perpendicular to the sliding direction.
[0112] Implementation Scheme 31: According to the linear motion component of Implementation Scheme 20, a plurality of protrusions are integrally provided in the first component or the second component along the sliding direction.
[0113] Implementation Scheme 32: According to the linear motion assembly of Implementation Scheme 20, the dimension of the first member in the sliding direction is smaller than the dimension of the second member in the sliding direction, and the at least one protrusion is disposed on the first member to constrain the at least one sliding member in the sliding direction.
[0114] Implementation Scheme 33: According to the linear motion assembly of Implementation Scheme 20, the second member forms a track extending along the sliding direction, and the first member is slidably disposed within the track by the at least one sliding member.
[0115] Implementation Scheme 34: According to the linear motion assembly of Implementation Scheme 20, the sliding member includes a sliding pin, the sliding pin including a base and a low-friction material disposed at least partially around the base.
[0116] Implementation Scheme 35: In the linear motion component according to Implementation Scheme 34, the sliding pin is configured as a column, and its axial direction corresponds to the sliding direction.
[0117] Implementation Scheme 36: In the linear motion assembly according to Implementation Scheme 34, the sliding pin is cylindrical; and / or, the low-friction material comprises a fluoropolymer; and / or, the substrate comprises a rigid material.
[0118] Implementation Scheme 37: According to the linear motion assembly of Implementation Scheme 20, the ratio of the dimension of the protrusion in the direction perpendicular to the sliding direction to the dimension of the sliding member in the direction perpendicular to the sliding direction is less than 1.
[0119] Implementation Scheme 38: In the linear motion assembly according to Implementation Scheme 20, the ratio of the dimension of the protrusion in the direction perpendicular to the sliding direction to the dimension of the sliding member in the direction perpendicular to the sliding direction is less than 0.5.
[0120] Note that not all of the above-described features are required; some specific features may be optional, and one or more features may be provided in addition to those described. Furthermore, the order in which the features are described does not necessarily correspond to the order in which they are installed.
[0121] For clarity, certain features described herein in the context of individual embodiments may also be provided in combination in a single embodiment. Conversely, for brevity, various features described in the context of a single embodiment may also be provided individually or in any sub-combination.
[0122] The benefits, other advantages, and solutions to problems have been described above with respect to specific embodiments. However, these benefits, advantages, solutions to problems, and any features that may cause any benefit, advantage, or solution to occur or become more significant should not be construed as key, necessary, or essential features of any or all claims.
[0123] The description and illustrations of the embodiments described herein are intended to provide a general understanding of the structure of various embodiments. The description and illustrations are not intended to be an exhaustive and comprehensive description of all elements and features of an apparatus and system using the structures or methods described herein. Individual embodiments may also be provided in combination in a single embodiment, and conversely, for brevity, various features described in the context of a single embodiment may also be provided individually or in any sub-combination. Furthermore, references to values stated in the scope include every value within that scope. Many other embodiments will become apparent to those skilled in the art only after reading this specification. Other embodiments may be used and other embodiments may be derived from this disclosure, such that structural substitutions, logical substitutions, or any changes may be made without departing from the scope of this invention. Therefore, this disclosure should be considered illustrative rather than restrictive.
Claims
1. A linear motion component, characterized in that, include: First component; Second component; as well as At least one sliding member is disposed between the first member and the second member. Wherein, the at least one sliding member is adapted to slide relative to at least one of the first member and the second member along the sliding direction. Furthermore, at least one of the first component and the second component includes at least one limiting structure integrally disposed with the first component or the second component, the limiting structure being adapted to constrain the at least one sliding component in the sliding direction.
2. The linear motion component according to claim 1, characterized in that, The limiting structure is in direct contact with the at least one sliding member.
3. The linear motion component according to claim 1, characterized in that, The limiting structure includes a protrusion, which is integrally disposed on the surface of at least one of the first component and the second component.
4. The linear motion component according to claim 3, characterized in that, The first component and / or the second component are provided with a notch corresponding to the protrusion.
5. The linear motion component according to claim 3, characterized in that, The protrusion has a dovetail shape in a cross section perpendicular to the sliding direction.
6. The linear motion component according to claim 1, characterized in that, The limiting structure includes a recess / protrusion corresponding to a protrusion / recess on the at least one sliding member.
7. The linear motion component according to claim 1, characterized in that, It includes multiple sliding components.
8. The linear motion component according to claim 1, characterized in that, It includes a plurality of limiting structures integrally disposed in at least one of the first component and the second component.
9. The linear motion component according to claim 1, characterized in that, The limiting structure is in direct contact with the at least one sliding member, and the at least one sliding member is constrained only at its two ends along the sliding direction.
10. The linear motion component according to claim 1, characterized in that, The first component and / or the second component are adapted to constrain the at least one sliding component in a direction perpendicular to the sliding direction.
11. The linear motion component according to claim 1, characterized in that, At least one of the first component and the second component has a concave surface adapted to accommodate the sliding component, the concave surface being adapted to constrain the at least one sliding component in a direction perpendicular to the sliding direction.
12. The linear motion component according to claim 1, characterized in that, The first component or the second component is integrally provided with multiple limiting structures along the sliding direction.
13. The linear motion component according to claim 1, characterized in that, The first component has a smaller dimension in the sliding direction than the second component in the sliding direction, and the limiting structure is disposed on the first component to constrain the at least one sliding component in the sliding direction.
14. The linear motion component according to claim 1, characterized in that, The second component forms a track extending along the sliding direction, and the first component is slidably disposed within the track by the at least one sliding component.
15. The linear motion component according to claim 1, characterized in that, The sliding member includes a sliding pin, the sliding pin including a base and a low-friction material disposed at least partially around the base.
16. The linear motion component according to claim 15, characterized in that, The sliding pin is configured as a column, and its axial direction corresponds to the sliding direction.
17. The linear motion component according to claim 15, characterized in that, The sliding pin is cylindrical; and / or the low-friction material comprises a fluoropolymer; and / or the substrate comprises a rigid material.
18. The linear motion component according to claim 1, characterized in that, The ratio of the dimension of the limiting structure in the direction perpendicular to the sliding direction to the dimension of the sliding member in the direction perpendicular to the sliding direction is less than 1.
19. The linear motion component according to claim 1, characterized in that, The ratio of the dimension of the limiting structure in the direction perpendicular to the sliding direction to the dimension of the sliding member in the direction perpendicular to the sliding direction is less than 0.
5.
20. A linear motion component, characterized in that, include: First component; Second component; as well as At least one sliding member is disposed between the first member and the second member. Wherein, the at least one sliding member is adapted to slide relative to at least one of the first member and the second member along the sliding direction. Furthermore, at least one of the first component or the second component includes at least one protrusion, the at least one protrusion being adapted to constrain the at least one sliding component in the sliding direction.
21. The linear motion component according to claim 20, characterized in that, The at least one protrusion is integrally disposed on at least one of the first component and the second component.
22. The linear motion component according to claim 20, characterized in that, The at least one protrusion is in direct contact with the at least one sliding member.
23. The linear motion component according to claim 20, characterized in that, The at least one protrusion is integrally disposed on the surface of at least one of the first component and the second component.
24. The linear motion component according to claim 20, characterized in that, The first component and / or the second component are provided with a notch corresponding to the at least one protrusion.
25. The linear motion component according to claim 20, characterized in that, The at least one protrusion has a dovetail shape in a cross section perpendicular to the sliding direction.
26. The linear motion component according to claim 20, characterized in that, It includes multiple sliding components.
27. The linear motion component according to claim 20, characterized in that, It includes a plurality of protrusions integrally disposed on at least one of the first member and the second member.
28. The linear motion component according to claim 20, characterized in that, The at least one protrusion is in direct contact with the at least one sliding member, and the at least one sliding member is constrained only at its two ends along the sliding direction.
29. The linear motion component according to claim 20, characterized in that, The first component and / or the second component are adapted to constrain the at least one sliding component in a direction perpendicular to the sliding direction.
30. The linear motion component according to claim 20, characterized in that, At least one of the first component and the second component has a concave surface adapted to accommodate the sliding component, the concave surface being adapted to constrain the at least one sliding component in a direction perpendicular to the sliding direction.
31. The linear motion component according to claim 20, characterized in that, Multiple protrusions are integrally provided in the first component or the second component along the sliding direction.
32. The linear motion component according to claim 20, characterized in that, The first member has a smaller dimension in the sliding direction than the second member in the sliding direction, and the at least one protrusion is disposed on the first member to constrain the at least one sliding member in the sliding direction.
33. The linear motion component according to claim 20, characterized in that, The second component forms a track extending along the sliding direction, and the first component is slidably disposed within the track by the at least one sliding component.
34. The linear motion component according to claim 20, characterized in that, The sliding member includes a sliding pin, the sliding pin including a base and a low-friction material disposed at least partially around the base.
35. The linear motion component according to claim 34, characterized in that, The sliding pin is configured as a column, and its axial direction corresponds to the sliding direction.
36. The linear motion component according to claim 34, characterized in that, The sliding pin is cylindrical; and / or the low-friction material comprises a fluoropolymer; and / or the substrate comprises a rigid material.
37. The linear motion component according to claim 20, characterized in that, The ratio of the dimension of the protrusion in the direction perpendicular to the sliding direction to the dimension of the sliding member in the direction perpendicular to the sliding direction is less than 1.
38. The linear motion component according to claim 20, characterized in that, The ratio of the dimension of the protrusion in the direction perpendicular to the sliding direction to the dimension of the sliding member in the direction perpendicular to the sliding direction is less than 0.5.