Tolerance compensator
By designing a static nut, compensation nut, and the tolerance compensator for keeping clips, the problem of the gap due to the size tolerance caused by the tolerance of the vehicle is solved, and the efficient and economic gap compensation effect is achieved. It is suitable for assembly without pre -welding nuts.
Patent Information
- Application Number
- CN202410983059.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2024-04-24
- Filing Date
- 2024-07-22
- Publication Date
- 2025-01-24
AI Technical Summary
The prior art is difficult to effectively compensate for component gaps due to dimensional tolerances during vehicle assembly, especially in the absence of pre-welded nuts, and is particularly suitable for the assembly of plastic to plastic or plastic to metal.
A tolerance compensator is designed that includes a stationary nut, a compensating nut and a retaining clip. The stationary nut and the compensating nut are engaged through complementary threads. The compensating nut moves in the axial direction to compensate for the gap. The retaining clip is fixedly engaged with the compensating nut through an actuation feature. .
In the case of no pre -welding nut, the gap caused by the size tolerance between the vehicle components without the pre -welding nut, which improves the accuracy and stability of the assembly, and reduces the complexity and cost of assembly.
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Figure CN119353298A_ABST
Abstract
Description
Technical Field
[0001] The subject matter described herein relates generally to tolerance compensators, and in particular to tolerance compensators that may be disposed between first and second components being fastened. Background Art
[0002] Typically, vehicles such as four-wheeled vehicles, two-wheeled vehicles, etc. include various components that are assembled together at a manufacturing facility. At least some of these components may be manufactured with dimensional tolerances. Manufacturing components with dimensional tolerances may result in gaps between components when two or more components are assembled together. In order to improve the finishing quality of the assembled components and / or to ensure that the components do not shake due to vibrations (e.g., during operation of the vehicle), such gaps must be eliminated or at least minimized. Summary of the invention
[0003] The present subject matter discloses a tolerance compensator. The tolerance compensator may include a stationary nut, a compensating nut mating with the stationary nut, and a retaining clip. The stationary nut may include an engagement feature. In addition, the compensating nut may include a complementary engagement feature to mate with the engagement feature of the stationary nut. The compensating nut may be movable relative to the stationary nut in an axial direction. The retaining clip may be disposed relative to the compensating nut and may be fixedly engageable with the compensating nut to be stationary relative to the compensating nut and movable relative to the stationary nut. The retaining clip may further include a cavity for receiving and engaging with an external fastening element, and an actuable feature configured to be actuated to fixedly engage with the compensating nut when the external fastening element is received. The compensating nut may be configured to move integrally with the retaining clip relative to the stationary nut in an axial direction in response to applying a torque to the retaining clip. In addition, the compensating nut may be configured to move a predetermined distance between two end positions. BRIEF DESCRIPTION OF THE DRAWINGS
[0004] The detailed description is provided with reference to the accompanying drawings.It should be noted that the description and drawings are only examples of the subject matter and are not intended to represent the subject matter itself.
[0005] Figure 1a A tolerance compensator is shown assembling two components of a vehicle according to an embodiment of the present subject matter.
[0006] Figure 1b An exploded view of a tolerance compensator and a threaded screw according to an embodiment of the present subject matter is shown.
[0007] Figure 2a A front view of a tolerance compensator according to an embodiment of the present subject matter is shown.
[0008] Figure 2b A perspective view of a tolerance compensator according to an embodiment of the present subject matter is shown.
[0009] Figure 2c A perspective view of a tolerance compensator according to an embodiment of the present subject matter is shown.
[0010] Figure 2d An exploded view of a tolerance compensator according to an embodiment of the present subject matter is shown.
[0011] Figure 2e A compensating nut of a tolerance compensator according to an embodiment of the present subject matter is shown.
[0012] Figure 2f The assembled components of a stationary nut of a tolerance compensator according to an embodiment of the present subject matter are shown.
[0013] Figure 3a A front perspective view of assembly components of a stationary nut is shown in accordance with an embodiment of the present subject matter.
[0014] Figure 3b A bottom perspective view of assembly components of a stationary nut is shown in accordance with an embodiment of the present subject matter.
[0015] Figure 4 A stationary nut of a tolerance compensator according to an embodiment of the present subject matter is shown.
[0016] Figure 5 A compensating nut of a tolerance compensator according to an embodiment of the present subject matter is shown.
[0017] Figure 6a A retaining clip of a tolerance compensator is shown in accordance with an embodiment of the present subject matter.
[0018] Figure 6b A retaining clip of a tolerance compensator is shown in accordance with an embodiment of the present subject matter.
[0019] Figure 7a An assembly between a compensating nut and a stationary nut of a tolerance compensator according to an embodiment of the present subject matter is shown.
[0020] Figure 7b The embodiment according to the present subject is shown Figure 7a An enlarged view of a portion depicted in FIG.
[0021] Figures 8a-8d Two components of a vehicle are shown assembled using a tolerance compensator according to an embodiment of the present subject matter.
[0022] Figure 9a A tolerance compensator according to an embodiment of the present subject matter is shown.
[0023] Figure 9b An exploded view of a tolerance compensator according to an embodiment of the present subject matter is shown.
[0024] Fig.10a A perspective view of a tolerance compensator according to an embodiment of the present subject matter is shown.
[0025] Fig.10b A perspective view of a tolerance compensator according to an embodiment of the present subject matter is shown.
[0026] Fig.10c An exploded view of a tolerance compensator according to an embodiment of the present subject matter is shown.
[0027] Fig.11a A front perspective view of a tolerance compensator according to an embodiment of the present subject matter is shown.
[0028] Fig.11b A bottom perspective view of a tolerance compensator according to an embodiment of the present subject matter is shown.
[0029] Fig.11c An exploded view of a tolerance compensator according to an embodiment of the present subject matter is shown.
[0030] Fig.12 A tolerance compensator for assembling two components of a vehicle is shown according to another embodiment of the present subject matter.
[0031] Fig.13 An exploded view of a tolerance compensator according to another embodiment of the present subject matter is shown.
[0032] Fig.14a An isometric view of a tolerance compensator according to another example of the present subject matter is shown.
[0033] Fig.14b Another isometric view of a tolerance compensator according to another example of the present subject matter is shown.
[0034] Fig.14c A top perspective view of a tolerance compensator according to another example of the present subject matter is shown.
[0035] Fig.14d A bottom perspective view of a tolerance compensator according to another example of the present subject matter is shown.
[0036] Fig.15a A side perspective view of a tolerance compensator in a retracted state according to an example of the present subject matter is shown.
[0037] Fig.15b A side perspective view of a tolerance compensator in an extended state is shown according to an example of the present subject matter.
[0038] Fig.16 A cross-sectional view of a tolerance compensator assembling two components of a vehicle in a fully engaged state is shown according to an example of the present subject matter.
[0039] Fig.17 A top view of a tolerance compensator according to another example of the present subject matter is shown.
[0040] Fig.18 A side view of a tolerance compensator according to another example of the present subject matter is shown.
[0041] Fig.19 An illustration of a method of fastening a first component to a second component according to an example of the present subject matter is provided.
[0042] Throughout the drawings, the same reference numerals denote similar elements, but may not denote identical elements. The drawings are not necessarily drawn to scale, and the sizes of certain portions may be exaggerated to more clearly illustrate the examples shown. In addition, the drawings provide examples and / or implementations consistent with the description; however, the description is not limited to the examples and / or implementations provided in the drawings. DETAILED DESCRIPTION
[0043] In a vehicle, various components must be coupled to one another or mounted to another component. For example, the body-in-white (BIW) frame of a vehicle has various components attached thereto, including components such as the hood and fenders, and may even have other components including trim, such as the instrument panel and light housings (headlight or taillight assemblies) or chassis subassemblies, etc. In order to couple one component, such as a cross-instrument beam (CCB), to another component, such as a BIW frame, using conventional fasteners, the complementary fastening apertures of the two components are aligned, and then a fastening element, such as a bolt, may be inserted through the aligned apertures and retained using a complementary fastening element, such as a nut.
[0044] Various automotive components are usually manufactured with dimensional tolerances depending on the type of fit to be achieved between the various components under different assembly conditions. However, due to such tolerances, a gap may be formed between two assembled components. For example, assuming that the width between the "A" pillars is 600 mm and the width of the CCB is 590 mm, a gap of 10 mm may be generated in the width direction when the dashboard cross member is to be fastened with the BIW. In some cases, the gap may expose the fastening elements and make them vulnerable to damage. In addition, the presence of the gap may hinder the aesthetics of the vehicle.
[0045] In view of the above, efforts are made to eliminate or minimize such gaps. In some cases, the gap between the two connected parts can be minimized by providing one or more washers or washers in the gap and fastening the one or more washers or washers using conventional fasteners. However, such fastening of the parts may not be strong and may not be able to withstand the load acting on the fastening element, and thus may cause the fastening element to break. This may lead to the disassembly of the parts. In another scenario, a compensator or compensating fastener can be used to compensate for the gap between the parts. A conventional compensator can be positioned to align with the nut to receive a fastening element that can engage with the nut.
[0046] In an example, the movable member of a conventional compensator can be actuated by an external actuation mechanism to move relative to a fixed member to compensate for the gap between the components. In another example, the movable member can be provided with a friction retaining component and a plurality of other reinforcing components, for example, a friction retaining sleeve attached to the movable member, which can act against the thread of the fastening element. The movable member can be threadedly engaged with the fastening element directly or via the inner surface of the friction retaining inner device with a higher friction coefficient than the friction coefficient between the movable member and the fixed member. However, such additional components increase the complexity of assembling and setting the tolerance compensator between the components being fastened. In addition, effective friction retention may require a considerable surface area, which may increase the overall size of the component.
[0047] In addition, conventional compensators are made of metal. Therefore, conventional compensators are heavier, difficult to manufacture and relatively expensive. In addition, in some cases, it may be necessary for the component to be connected to the BIW frame at a location that is inaccessible for providing welding nuts. Therefore, for such applications, in the manufacturing facility, due to the welding nature of the nuts, it is generally not necessary to maintain an inventory of nuts, but in some cases, it may be necessary to maintain separate and different sized nuts in inventory. In addition, various plastic parts need to be mounted on the BIW frame, such as plastic decorative parts, such as instrument panels, headlight assemblies, taillight assemblies, etc. Plastic parts generally need to be installed at locations that are inaccessible to welding nuts. In addition, in the case where the mounting component is made of plastic, the provision of nuts is difficult because the post-molding fusion or welding of the nuts (even plastic nuts) to the mounting component may not provide sufficient strength for the fused or welded nuts.
[0048] Thus, a conventional compensator positioned relative to a nut to allow tolerance compensation may not be used to provide the desired clearance compensation during assembly of the plastic components because the nut may not be present to allow plastic-to-plastic assembly and / or plastic-to-metal assembly.
[0049] The present subject matter relates to a tolerance compensator for compensating a gap between two components to be assembled having a dimensional tolerance. The tolerance compensator of the present subject matter has a simplified construction and a reduced number of components to be assembled compared to conventional designs. In addition, the tolerance compensator of the present subject matter is relatively lightweight, modular, and highly reusable in nature compared to conventional compensators. In addition, the present subject matter provides a tolerance compensator that can be used to compensate for gaps between plastic-to-plastic components and / or plastic-to-metal components in the absence of pre-welded nuts on a vehicle frame. In addition, the tolerance compensator of the present subject matter is also highly durable to withstand compressive stresses acting on the tolerance compensator. In addition, the tolerance compensator of the present subject matter is configured to expand and contract in response to engagement with an external fastening element without the assistance of a separate actuating tool.
[0050] In an embodiment of the present subject matter, a tolerance compensator is provided to compensate for a gap between components to be fastened. The tolerance compensator can be used, for example, in a vehicle. In an example, a vehicle can include a first component and a second component to be fastened together. The first component and / or the second component can have a dimensional tolerance, so that the fastening of the first component and the second component can be performed without the components contacting each other and a gap is formed between the mounted components, through which a portion of the external fastening element can be exposed. As will be explained below, the tolerance compensator can compensate for the gap between the first component and the second component. In an example, the first component can be, for example, a dashboard cross member, and the second component can be, for example, a body-in-white.
[0051] To fasten the first and second components, an external fastening element, such as a threaded screw, is inserted through a first aperture in the first component and a second aperture in the second component, wherein the external fastening element engages with a complementary fastening element, such as a nut. A tolerance compensator may be positioned between the first and second apertures.
[0052] The tolerance compensator may include a stationary nut, a compensating nut and a retaining clip. The stationary nut may include an engagement feature. In an example, the stationary nut may be made of plastic. In addition, the compensating nut may be coordinated with the stationary nut. In order to achieve coordination between the compensating nut and the stationary nut, the compensating nut may include a complementary engagement feature to cooperate with the engagement feature of the stationary nut. In addition, the compensating nut may be movable relative to the stationary nut along an axial direction. The axial direction may be a direction along a central longitudinal axis of the compensating nut.
[0053] The retaining clip may be disposed relative to the compensating nut and may be fixedly engageable with the compensating nut. In an example, the retaining clip may include a cavity for receiving and engaging with the external fastening element. The retaining clip may also include an actuatable feature that may be actuated upon receipt of the external fastening element to cause the retaining clip to fixedly engage with the compensating nut. Actuation of the actuatable feature causes the retaining clip to fixedly engage with the compensating nut. In an example, the retaining clip may be made of plastic.
[0054] In an example, the retaining clip can form an interference fit with the external fastening element when the external fastening element is received in the cavity, and can therefore remain stationary relative to the external fastening element. When torque is applied to the external fastening element, the retaining clip can rotate with the external fastening element. In addition, since the retaining clip can also be stationary relative to the compensating nut, by virtue of the actuatable feature in the actuated configuration, the retaining clip can rotate integrally with the compensating nut in response to the torque applied to the external fastening element.
[0055] The engagement feature of the stationary nut may include a first set of threads, and the complementary engagement feature of the compensating nut includes a second set of threads complementary to the first set of threads. The second set of threads of the compensating nut allows the compensating nut to mate with the stationary nut. In an example, the mating of the first set of threads and the second set of threads may enable the compensating nut to move axially relative to the stationary nut in response to the application of torque. The compensating nut may move in an axial direction relative to the stationary nut to compensate for a gap between the first component and the second component being tightened. The movement of the compensating nut may be defined between two end positions, and in response to being subjected to torque via the retaining clip, the compensating nut is configured to move a predetermined distance between the two end positions.
[0056] The movement of the compensating nut relative to the stationary nut between two end positions may allow the tolerance compensator to transition between a retracted state and an extended state. In the retracted state, the compensating nut may be in a first end position, wherein the distal end of the compensating nut is at a minimum distance relative to the distal end of the stationary nut. The distal end of the compensating nut and the distal end of the stationary nut are opposite ends. Furthermore, in the extended state, the compensating nut may be in a second end position, wherein the distal end of the compensating nut is at a maximum distance relative to the distal end of the stationary nut. The maximum distance is the distance that the distal compensating nut is adapted to be displaced relative to the stationary nut without the compensating nut being disengaged relative to the stationary nut.
[0057] In an example, the compensating nut may have at least a height in the axial direction relative to the stationary nut in the retracted state. In addition, a substantially larger portion of the compensating nut extends above the stationary nut in the extended state to compensate for a gap between the first component and the second component being fastened. Thus, the compensating nut may have a maximum height relative to the stationary nut in the extended state. In an example, the compensating nut may be made of plastic.
[0058] Each of the components of the tolerance compensator, such as the retaining clip, the compensating nut and the stationary nut, can be manufactured separately and assembled at the assembly unit. For example, the retaining clip can be assembled to the compensating nut, and the assembly of the retaining clip and the compensating nut can be assembled to the stationary nut.
[0059] In an example, the tolerance compensator may have to withstand large compressive stress in the radial direction during engagement with an external fastening element. Therefore, the wall thickness of all components of the tolerance compensator is allowed to be high enough in the radial direction to withstand the compressive stress. In addition, the first set of threads of the stationary nut and the second set of threads of the compensating nut are set as, for example, trapezoidal threads or square threads to prevent damage to the engagement features and the complementary engagement features due to the large compressive stress in the radial direction.
[0060] For fastening, the first component and the second component may be aligned so that a first aperture formed on the first component and a second aperture formed on the second component are aligned. In an example, the first component may be a dashboard cross member, and the second component may be a body-in-white of a vehicle. The tolerance compensator may be positioned between the first component and the second component. In an example, the tolerance compensator may be positioned by fixedly engaging a stationary nut with the second aperture of the second component. Initially, the tolerance compensator may be positioned in a retracted state and may not completely cover the gap. An external fastening element (e.g., a threaded screw) may be inserted from the first aperture to be inserted through the tolerance compensator into the second aperture.
[0061] The external fastening element may be received in the cavity of the retaining clip. When torque is applied to the external fastening element, the external fastening element may begin to engage with the tolerance compensator. In particular, the external fastening element may engage with the retaining clip and engage with the compensating nut through the retaining clip. When the external fastening element engages with the retaining clip, the actuable feature may be actuated to fixedly engage the retaining clip with the compensating nut. In addition, torque may be applied to the external fastening element so that the external fastening element moves along an axial direction toward the complementary fastening element on the second component. At the same time, due to the engagement of the first set of threads of the stationary nut and the second set of threads of the compensating nut, the compensating nut may begin to move axially away from the stationary nut. This may cause the compensating nut to expand relative to the stationary nut so that the tolerance compensator moves a predetermined distance between the two end positions. The predetermined distance may be equal to the gap in the dimensional tolerance between the first component and the second component. Therefore, the gap may be compensated. At the same time, the external fastening element may be advanced through the compensator to engage with the complementary fastening element and fasten the first component and the second component together.
[0062] In an example, the stationary nut may include an assembly component to set the stationary nut for engaging the tolerance compensator to the external component. As discussed above, the external component may be the second component during the tightening of the first component and the second component. In an embodiment, the assembly component may include a set of cantilever legs. Each cantilever leg in the set of cantilever legs may include a snap at a free end to engage with the external component in a snap-fit configuration. For example, the set of cantilever legs may snap onto a set of slots provided on the second component.
[0063] In another embodiment, the assembly component and the stationary nut may be formed as an integral structure. In addition, the assembly component may also be integrally formed with a complementary fastening element configured to receive an external fastening element. Thus, the tolerance compensator eliminates the need to pre-weld the complementary fastening element to one of the components being fastened. Thus, the present subject matter saves assembly time and the costs and resources associated with attaching the complementary fastening element to the second component. Furthermore, in such scenarios, the tolerance compensator has a reduced number of parts compared to conventional designs. Thus, assembly is made relatively easier and assembly time is further reduced.
[0064] In addition to reducing the number of parts to be assembled, it is also ensured that the modularity of the tolerance compensator design is maintained. For example, parts that are directly engaged with external fastening elements and are susceptible to damage, such as compensating nuts and retaining clips, are provided as separate parts of the tolerance compensator. Therefore, if one of the parts is damaged, the damaged part can be discarded separately and replaced with a new part instead of discarding the entire tolerance compensator. Similarly, the second orifice provided on the second part (such as a BIW) for accommodating the stationary nut of the tolerance compensator may vary depending on the manufacturer of the second part and the type of the second part. Therefore, if the cross-sectional width of the stationary nut is higher or lower than the cross-sectional width of the second orifice, the stationary nut can be replaced separately without having to replace the entire tolerance compensator. In other words, the existing stationary nut can be replaced with a new stationary nut having a cross-sectional width that matches the cross-sectional width of the second orifice. Therefore, the present subject matter provides design flexibility.
[0065] The present subject matter provides a tolerance compensator that is simpler and easier to assemble. Since the tolerance compensator is made of plastic, the tolerance compensator is lighter, easier to manufacture, and relatively inexpensive. With the present subject matter, the components of the tolerance compensator are highly reusable. In addition, the tolerance compensator is configured to have a simplified construction.
[0066] The above and other features, aspects and advantages of the present subject matter will be better illustrated with respect to the following description and accompanying drawings. It should be noted that the description and accompanying drawings illustrate only the principles of the present subject matter and the examples described herein, and should not be construed as limitations on the present subject matter. Therefore, it should be understood that various arrangements embodying the principles of the present disclosure may be designed, although not explicitly described or shown herein. In addition, all statements describing its principles, aspects and examples herein are intended to encompass their equivalents. In addition, for simplicity, and without limitation, the same numbers are used throughout the accompanying drawings to reference the same features and components.
[0067] Figure 1a A tolerance compensator 100 is shown assembling two components 102 , 104 of a vehicle in accordance with an embodiment of the present subject matter. Figure 1bAn exploded view of a tolerance compensator 100 and a threaded screw 106-1 according to an embodiment of the present subject matter is shown. For simplicity, Figure 1a and Figure 1b may need to fasten two parts, such as a vehicle ( Figure 1a-1b The first component 102 and the second component 104 are shown in FIG. 1 . The vehicle may be, for example, an automobile. The first component 102 may be, for example, a cross-dashboard beam (CCB), and the second component 104 may be, for example, a body-in-white (BIW) of the automobile. The first component 102 and / or the second component 104 may have a dimensional tolerance. Due to the dimensional tolerance, the first component 102 and the second component 104 may have a gap therebetween. The tolerance compensator 100 may compensate for the gap.
[0068] Hereinafter, the vehicle will be explained with reference to a car. The first component 102 will be explained with reference to a CCB, and the second component 104 will be explained with reference to a BIW.
[0069] In an example, the tolerance compensator 100 can compensate for the gap between the BIW 104 and the CCB 102. In addition, the external fastening element 106-1 and the complementary fastening element 106-2 can be used to fasten the CCB 102 and the BIW 104. The external fastening element 106-1 and the complementary fastening element 106-2 can be, for example, a threaded screw and a nut, respectively. The complementary fastening element 106-2 can be one of a wing nut and a hexagonal nut. Hereinafter, the external fastening element 106-1 and the complementary fastening element 106-2 will be explained with reference to the threaded screw 106-1 and the nut 106-2. The complementary fastening element 106-2 can be, for example, a nut attached to the BIW 104. In particular, the complementary fastening element 106-2 can be welded at one side (the rear side in the view depicted herein) of the BIW 104.
[0070] In an example, the BIW 104 and the CCB 102 may be brought closer together for tightening. The tolerance compensator 100 may be positioned in the gap therebetween. In addition, the threaded screw 106-1 may be passed through an aperture ( Figure 1a-1b 106-1) and may have to be received in a nut 106-2 attached to the BIW 104 to secure the CCB 102 and the BIW 104. In this regard, torque may be applied to the threaded screw 106-1 so that it is received in the nut 106-2 through the tolerance compensator 100.
[0071] The tolerance compensator 100 may include a stationary nut 108, a compensating nut 110, and a retaining clip 112. In an example, the stationary nut 108 may also include a mounting member 114. In an example, each of the components such as the stationary nut 108, the compensating nut 110, the retaining clip 112, and the mounting member 114 may be formed as separate parts and assembled together.
[0072] Figure 2a A front view of a tolerance compensator 100 is shown in accordance with an embodiment of the present subject matter. Figure 2b A perspective view of a tolerance compensator 100 is shown in accordance with an embodiment of the present subject matter. Figure 2c A perspective view of a tolerance compensator 100 is shown in accordance with an embodiment of the present subject matter. Figure 2d An exploded view of a tolerance compensator 100 is shown in accordance with an embodiment of the present subject matter. Figure 2e A compensating nut 110 of a tolerance compensator 100 is shown according to an embodiment of the present subject matter. Figure 2f FIG. 1 shows an assembly 114 of a tolerance compensator 100 according to an embodiment of the present subject matter. For the sake of brevity, Figure 2a-2f Will be explained in conjunction with each other.
[0073] The stationary nut 108 may include an engagement feature 202. In an example, the engagement feature 202 may include a first set of threads. The first set of threads may be circumferentially disposed at the inner surface of the stationary nut 108. In addition, the compensating nut 110 may be cooperatively disposed with the stationary nut 108. The compensating nut 110 may include a complementary engagement feature 204 to cooperate with the engagement feature 202 of the stationary nut 108. In an example, the compensating nut 110 may include a second set of threads. The second set of threads may be circumferentially disposed on the outer surface of the compensating nut 110 to engage with the first set of threads disposed on the inner surface of the stationary nut 108.
[0074] In an example, the compensating nut 110 may be inserted into the stationary nut 108. The compensating nut 110 may be moved in an axial direction relative to the stationary nut 108 to compensate for a gap between the CCB 102 and the BIW 104.
[0075] The retaining clip 112 may be disposed relative to the compensating nut 110 and may be fixedly engaged with the compensating nut 110. In addition, the retaining clip 112 may be integrally movable with the compensating nut 110 relative to the stationary nut 108. The retaining clip 112 may include a cavity ( Figure 2a-2f ) and an actuatable feature (not shown) that can be actuated to fixedly engage with the compensating nut 110 upon receipt of the threaded screw 106-1. Figure 2a-2f The retaining clip 112 can receive the threaded screw 106-1 ( Figure 2a-2f). In an example, when torque is applied to the threaded screw 106-1, the retaining clip 112 may have to rotate with the rotation of the threaded screw 106-1. Therefore, the retaining clip 112 may form an interference fit with the threaded screw 106-1.
[0076] The retaining clip 112 may be assembled with the compensating nut 110. The stationary nut 108 may include a mounting member 114. The stationary nut 108 may be received in the mounting member 114. The mounting member 114 may be attached to one of the components to be fastened. In an example, the mounting member 114 may be attached to the BIW 104 ( Figure 2a-2f Since the mounting member 114 is attached to the BIW 104, the mounting member 114 is stationary. In addition, the stationary nut 108 may be attached to the mounting member 114, so the stationary nut 108 is also stationary.
[0077] The compensating nut 110 is configured to move integrally with the retaining clip 112 in the axial direction relative to the stationary nut 108 in response to the application of torque to the retaining clip 112. For example, when torque is applied to the threaded screw 106-1, the retaining clip 112 may rotate as the threaded screw 106-1 rotates. Since the retaining clip 112 is stationary relative to the compensating nut 110, the torque applied to the threaded screw 106-1 may be indirectly applied to the retaining clip 112. In addition, due to the engagement between the retaining clip 112 and the compensating nut 110, the torque applied to the retaining clip 112 may be indirectly experienced by the compensating nut 110. The compensating nut 110 may be configured to move a predetermined distance between two end positions in response to the application of torque.
[0078] Each of the components of the tolerance compensator 100, such as the stationary nut 108, the compensating nut 110, the retaining clip 112, and the mounting component 114, can be manufactured separately and assembled. For example, the retaining clip 112 can be assembled with the compensating nut 110. Similarly, the stationary nut 108 can be assembled to the mounting component 114, so that the mounting component 114 is a part of the stationary nut 108. Subsequently, the assembly of the retaining clip 112 and the compensating nut 110 can be assembled to the assembly of the stationary nut 108 and the mounting component 114.
[0079] In an example, the tolerance compensator 100 may have to withstand large compressive stresses in the radial direction. In this respect, the wall thickness of all components of the tolerance compensator 100 is higher in the radial direction.
[0080] The tolerance compensator 100 is movable between two states: a retracted state and an extended state. Figure 2aAs depicted in FIG. 1 , in the retracted state, the compensating nut 110 is in a first end position, wherein the distal end of the compensating nut 110 is at a minimum distance relative to the distal end of the stationary nut 108. Thus, the compensating nut 110 may have a minimum height relative to the stationary nut 108 in the retracted state. Figure 2c , in the extended state, the compensating nut 110 can be moved away from the stationary nut 108, and a substantially larger portion of the compensating nut 110 extends in the axial direction relative to the stationary nut 108. For example, in the extended state, the distal end of the compensating nut 110 is at a maximum distance relative to the distal end of the stationary nut 108. The maximum distance can be a distance that the compensating nut 110 is suitable for moving without disengaging the compensating nut 110 relative to the stationary nut 108. Therefore, in the extended state, the compensating nut 110 can have a maximum height relative to the stationary nut 108.
[0081] Figure 3a A front perspective view of a mounting component 114 of a stationary nut 108 is shown, in accordance with an embodiment of the present subject matter. Figure 3b 1 shows a bottom perspective view of the assembly component 114 of the stationary nut 108 according to an embodiment of the present subject matter. For the sake of simplicity, Figure 3a-3b Will be explained in conjunction with each other.
[0082] As previously described, the mounting member 114 may be attached to the stationary nut 108 ( Figure 3a-3b ). In this regard, the fitting component 114 may include a fitting cavity 302 into which the stationary nut 108 may be inserted. In an example, the diameter of the fitting component cavity 302 may depend on the outer diameter of the stationary nut 108. In particular, the diameter of the fitting component cavity 302 may be substantially equal to or greater than the outer diameter of the stationary nut 108.
[0083] In an example, the mounting member 114 may be attached to the BIW 104 ( Figure 3a-3b In this regard, the assembly component 114 may include a plurality of fixtures 304 extending in the axial direction. The plurality of fixtures 304 may snap into a set of slots ( Figure 3a-3b In an example, the plurality of fixtures 304 may include a set of cantilever legs. Each cantilever leg in a set of cantilever sets may include a snap at its free end to engage with the BIW 104 in a snap-fit configuration. In another example, the plurality of fixtures 304 may include a tree-shaped fastener to abut against the BIW 104.
[0084] In addition, the mounting part 114 may include a plurality of grooves 306 that enable the stationary nut 108 to be attached to the mounting part 114. Each of the plurality of grooves 306 may be separated from each other by a certain distance along the circumferential direction. Since the mounting part 114 is attached to the BIW 104, the mounting part 114 is stationary. In addition, since the mounting part 114 is attached to the stationary nut 108, the stationary nut 108 is also attached to the BIW 104 and is also immovable. In an example, the mounting part 114 is also made of plastic. The mounting part 114 may be made of, for example, polyoxymethylene (POM), polypropylene (PP), and nylon.
[0085] Figure 4 1 shows a stationary nut 108 of a tolerance compensator 100 according to an embodiment of the present subject matter. The stationary nut 108 may include a mounting member 114 ( Figure 4 104 and 106. The stationary nut 108 may include a plurality of fixing devices 402. Each of the plurality of fixing devices 402 may be separated from an adjacent fixing device by a distance along a circumferential direction. Each of the plurality of fixing devices 402 may be coupled to a complementary groove 306 provided on the mounting component 114. The plurality of fixing devices 402 of the stationary nut 108 and the plurality of grooves 306 of the mounting component 114 may have complementary shapes.
[0086] In addition, the stationary nut 108 can be connected with the compensating nut 110 ( Figure 4 10). In an example, the stationary nut 108 may have an engagement feature 202 to cooperate with a complementary engagement feature 204 of the compensating nut 110. For example, an internal thread on the inner wall of the stationary nut 108 may engage with an external thread formed on the outer wall of the compensating nut 110. In an example, the number of threads of the stationary nut 108 may depend on the size of the gap to be compensated. In an example, the stationary nut 108 may be made of plastic. The stationary nut 108 may be made of, for example, 30% glass fiber reinforced polyamide 66 (PA66GF30), acrylonitrile butadiene styrene (ABS), etc.
[0087] Figure 5 1 shows a compensating nut 110 of a tolerance compensator 100 according to an embodiment of the present subject matter. The compensating nut 110 can be inserted into the stationary nut 108 ( Figure 5 108 and the compensating nut 110 may be provided on a retracted state and engaged with the stationary nut 108. The compensating nut 110 may include a compensating nut collar 502 at its distal end. In the retracted state, the compensating nut collar 502 may abut against a top surface of the stationary nut 108 such that a substantially intact portion of the compensating nut 110 is engaged with the stationary nut 108. The compensating nut collar 502 may be at a minimum distance relative to a distal end of the stationary nut 108 opposite the distal end of the compensating nut 110.
[0088] The compensating nut 110 may include a retaining clip 112 ( Figure 5 112). Thus, in an example, the diameter of the compensating nut cavity 504 can depend on the outer diameter of the retaining clip 112. In particular, the diameter of the compensating nut cavity 504 can be substantially equal to or greater than the outer diameter of the retaining clip 112.
[0089] In an example, the height of the compensating nut 110 along the axial direction and the number of threads of the compensating nut 110 may depend on the size of the gap to be compensated. The compensating nut 110 may be made of plastic. The compensating nut 110 may be made of PA66GF30, ABS, etc.
[0090] Figure 6a A retaining clip 112 of a tolerance compensator 100 is shown in accordance with an embodiment of the present subject matter. Figure 6b 1 is a diagram showing a retaining clip 112 of a tolerance compensator 100 according to an embodiment of the present subject matter. Figure 6a-6b Combine and explain each other.
[0091] The retaining clip 112 may include a set of deflectable protrusions 602 extending along a lateral wall 604 of the retaining clip 112. In an example, the set of deflectable protrusions 602 may be formed in a cutout formed on the lateral wall 604 of the retaining clip 112. Figure 6a-6b When the retaining clip 112 (not shown) is engaged with the retaining clip 112 and contacts the group of deflectable protrusions 602, the group of deflectable protrusions 602 can be deflected radially outward relative to the retaining clip 112 and toward the inner surface of the compensation nut 110 due to the force of the threaded screw 106-1. As a reaction force, the group of deflectable protrusions 602 moves toward the nut 106-2 (axial direction of the retaining clip 112) along the axial direction of the retaining clip 112. Figure 6a-6b ) pushes the threaded screw 106-1.
[0092] The retaining clip 112 may include a cavity 606 for receiving the threaded screw 106-1. Therefore, in an example, the diameter of the cavity 606 may depend on the outer diameter of the threaded screw 106-1. In particular, the diameter of the cavity 606 may be substantially equal to the outer diameter of the threaded screw 106-1 to form an interference fit. In an example, the retaining clip 112 may be made of plastic. The retaining clip 112 may be made of POM, PP, and nylon, for example.
[0093] Figure 7a The assembly between the compensating nut 110 and the stationary nut 108 of the tolerance compensator 100 is shown in accordance with an embodiment of the present subject matter. Figure 7b The embodiment according to the present subject is shown Figure 7a 702 is an enlarged view of the portion 702 depicted in FIG. Figure 7a-7b Combine and explain each other.
[0094] As previously described, compensating nut 110 may mate with stationary nut 108 by virtue of engagement between engagement feature 202 of stationary nut 108 and complementary engagement feature 204 of compensating nut 110. In an example, external threads of compensating nut 110 may engage internal threads of stationary nut 108.
[0095] The tolerance compensator 100 may have to withstand large compressive stresses in the radial direction. Therefore, in the example, the external thread of the compensating nut 110 and the internal thread of the stationary nut 108 are provided as trapezoidal threads or square threads, for example.
[0096] Figures 8a-8d Two components of a vehicle are shown being assembled using a tolerance compensator 100 in accordance with an embodiment of the present subject matter.
[0097] For fastening, the BIW 104 is brought close to the CCB 102. Figure 8a As shown in FIG. 1 , the tolerance compensator 100 is placed in the gap. The tolerance compensator 100 is initially in a contracted state. Therefore, the tolerance compensator 100 may not initially compensate for the entire gap. Figure 8b As shown in FIG. 1 , the tolerance compensator 100 may be attached to the BIW 104. In this regard, the plurality of fixtures 304 ( Figures 8a-8d ) can be inserted into the slot (not shown) of BIW 104 Figures 8a-8d In another example, the stationary nut 108 may be directly attached to the BIW 104.
[0098] like Figure 8c As shown in FIG. 1 , the threaded screw 106-1 can be inserted through a first aperture ( Figures 8a-8d When torque is applied to the threaded screw 106-1, the threaded screw 106-1 may begin to engage with the tolerance compensator 100. In particular, the threaded screw 106-1 may engage with the retaining clip 112 and thereby engage with the stationary nut 108 of the tolerance compensator 100. When the threaded screw 106-1 engages with the retaining clip 112, the threaded screw 106-1 may be moved by providing an actuatable feature (such as a set of deflectable protrusions 602 ( Figures 8a-8d)). The deflectable protrusion 602 can extend radially outward relative to the retaining clip 112 to fixedly engage with the compensating nut 110. Due to the torque applied to the threaded screw 106-1, the compensating nut 110 can begin to move axially away from the stationary nut 108 due to the engagement of the threads in the compensating nut 110 and the threads in the stationary nut 108. In an example, the actuatable member can be configured to act as a left-handed thread structure when the engagement feature 202 and the complementary engagement feature 204 are configured to act as a right-handed thread structure, and vice versa. Therefore, the rotation of the compensating nut 110 relative to the stationary nut 108 occurs in the opposite direction of the rotation of the threaded screw 106-1 relative to the stationary nut 108. This can cause the compensating nut 110 to stretch relative to the stationary nut 108 to move the tolerance compensator 100 a predetermined distance between the two ends. Since the extension of the compensating nut 110 causes the height of the tolerance compensator 100 to increase in the axial direction, the gap between the CCB 102 and the BIW 104 is compensated. At the same time, as Figure 8d As shown in FIG. 1 , the threaded screw 106 - 1 may be advanced through the tolerance compensator 100 to engage with the nut 106 - 2 and secure the CCB 102 and the BIW 104 together.
[0099] Figure 9a A tolerance compensator 900 is shown in accordance with an embodiment of the present subject matter. Figure 9b An exploded view of a tolerance compensator 900 according to an embodiment of the present subject matter is shown. For the sake of brevity, Figure 9a-9b Will be explained in conjunction with each other. The tolerance compensator 900 may correspond to the tolerance compensator 100. However, the tolerance compensator 900 may include a mounting component 114 attached to the stationary nut 102. The mounting component 114 may include a set of cantilever legs. Each cantilever leg in the set of cantilever legs may include a snap at its free end to engage with an external component (e.g., nut 106-2) in a snap-fit configuration. In an exemplary embodiment, the snap may be formed in a tree-like structure. Therefore, the tolerance compensator 900 may include a stationary nut 102, a compensating nut 110, and a retaining clip 112.
[0100] Fig.10a A perspective view of a tolerance compensator 1000 is shown in accordance with an embodiment of the present subject matter. Fig.10b A perspective view of a tolerance compensator 1000 is shown in accordance with an embodiment of the present subject matter. Fig.10c An exploded view of a tolerance compensator 1000 according to an embodiment of the present subject matter is shown. For the sake of brevity, Figure 10a-10c Will be explained in conjunction with each other.
[0101] The tolerance compensator 1000 may correspond to the tolerance compensator 900. In other words, the tolerance compensator 1000 may include a stationary nut 108, a compensating nut 110, and a retaining clip 112. However, instead of the nut 106-2 being attached to the BIW 104, the tolerance compensator 1000 may include a washer clip 1002. In particular, the washer clip 1002 may be, for example, a star-shaped washer clip. The washer clip 1002 may be attached to the BIW 104 and the stationary nut 108. The washer clip 1002 may receive the threaded screw 106-1 ( Figure 10a-10c 106 - 2 and the BIW 104 are welded. Thus, the need to weld the nut to the BIW 104 is eliminated. Thus, the present subject matter saves assembly time as well as costs and resources associated with attaching the nut 106 - 2 to the second component.
[0102] Fig.11a A front perspective view of a tolerance compensator 1100 is shown in accordance with an embodiment of the present subject matter. Fig.11b A bottom perspective view of a tolerance compensator 1100 according to an embodiment of the present subject matter 20 is shown. Fig.11c An exploded view of a tolerance compensator 1100 according to an embodiment of the present subject matter is shown. For the sake of brevity, Figures 11a-11c Combine and explain each other.
[0103] The tolerance compensator 1100 may correspond to the tolerance compensator 900. In other words, as explained above, the tolerance compensator 1100 may include the stationary nut 108, the compensating nut 110, and the retaining clip 112. However, instead of the nut 106-2 being attached to the BIW 104, the tolerance compensator 1100 may include a nut clamp 1102. In particular, the nut clamp 1102 may be, for example, a U-shaped nut clamp. The nut clamp 1102 may be attached to the BIW 104 and the stationary nut 108. The nut clamp 1102 may include a nut 1104 at one end thereof. When the nut clamp 1102 is assembled with the BIW 104, the nut 1104 of the nut clamp 1102 may be disposed at one side of the BIW 104, similar to the case where the nut 106-2 is welded on the BIW 104. The nut 106-2 may receive the threaded screw 106-1 ( Figures 11a-11c ). Thus, the need to weld the nut to the BIW 104 is eliminated. Thus, the present subject matter saves assembly time as well as costs and resources associated with attaching the nut to the second component.
[0104] In the above examples, the vehicle is explained with reference to a car. However, in other examples, the vehicle may be any other vehicle, such as a two-wheeled vehicle, a three-wheeled vehicle, etc. In the above examples, the first component is explained with reference to CCB, and the second component is explained with reference to BIW. However, in other examples, the first component and the second component are any components to be fastened together, and at least one of the first component and the second component has a dimensional tolerance, thereby causing a gap between the first component and the second component during fastening. In addition, in the above examples, the fasteners are explained with reference to threaded screws and nuts. However, in other examples, other fasteners may be used.
[0105] In a second aspect of the present subject matter, the stationary nut 108 and the mounting member 114 can form a unitary structure. Unitary structure refers to a single integral component formed or manufactured as one continuous piece. Therefore, the stationary nut 108 and the mounting member 114 include a seamless construction without separate parts that need to be assembled. Fig.12 A tolerance compensator 1200 is shown assembling two components. In an example, the two components may be components of a vehicle. For example, during assembly of a vehicle, two components, such as a first component 1202 and a second component 1204, may have to be fastened. The first component 1202 may be, for example, a plastic trim piece, and the second component 1204 may be, for example, a body-in-white (BIW) of a car. The first component 1202 and / or the second component 1204 may have a dimensional tolerance. Due to the dimensional tolerance, the first component 1202 and the second component 1204 may have a gap therebetween. The tolerance compensator 1200 may compensate for the gap.
[0106] In the following, the vehicle will be explained with reference to the automobile. The first component 1202 will be explained with reference to the plastic trim, and the second component 1204 will be explained with reference to the BIW. In an example, the tolerance compensator 1200 can compensate for the gap between the plastic trim 1202 and the BIW 1204. In addition, the fastening element 1206 can be used to fasten the plastic trim 1202 and the BIW 1204. The fastening element 1206 can correspond to the threaded screw 106-1. For fastening, the plastic trim 1202 can be brought closer to the BIW 1204, for example, to move the first hole ( Fig.12 ) is aligned with the second orifice ( Fig.12 1 ). The tolerance compensator 1200 may be positioned between the plastic trim 1202 and the BIW 1204 to compensate for a gap formed due to a dimensional tolerance. The tolerance compensator 1200 may be inserted into a first aperture (not shown in FIG. 1 ) formed on the plastic trim 1202 to be positioned between the plastic trim 1202 and the BIW 1204. In an example, when positioned between the plastic trim 1202 and the BIW 1204, the tolerance compensator 1200 may be in a retracted state.
[0107] In operation, the threaded screw 106-1 may be inserted through the second aperture in the BIW 1204 ( Fig.12 ), and can be received in the cavity (not shown) of the tolerance compensator 1200 inserted into the first orifice of the plastic trim 1202 Fig.12 1). In this regard, a torque may be applied to the threaded screw 106-1 so as to be received into the cavity of the tolerance compensator 1200. As discussed above with respect to FIGS. 1-11, the tolerance compensator 1200 may be subjected to a torque applied to the threaded screw 106-1. When subjected to a torque applied to the threaded screw 106-1, the tolerance compensator 1200 may transition between a retracted state and an extended state.
[0108] Fig.13 An exploded view of the tolerance compensator 1200 is shown. The tolerance compensator 1200 may include a stationary nut 1302, a compensating nut 1304, and a retaining clip 1306. In an example, the compensating nut 1304 may be movable in an axial direction relative to the stationary nut 1302 by a predetermined distance between two ends. The stationary nut 1302 may include a mounting member 1308 formed integrally therewith as a unitary structure. The stationary nut 1302 and the mounting member 1308 may be integrally formed such that a cross-sectional width of the stationary nut 1302 is greater than a cross-sectional width of the mounting member 1308. The stationary nut 1302 may be configured to engage with the compensating nut 1304 during assembly of the tolerance compensator 1200. In an example, the stationary nut 1302 may be attached to the plastic trim 102. The mounting member 1308 integrally formed with the stationary nut 1302 may be configured to function as a nut member for receiving the threaded screw 106 - 1 to securely fasten a first component (eg, plastic trim 1202 ) and a second component (eg, BIW 1204 ). The mounting member 1308 may not be directly attached to the plastic trim 1202 .
[0109] The stationary nut 1302 may include a stationary nut collar 1310 at its proximal end. The proximal end of the stationary nut 1302 may be an end proximal to the compensating nut 1304. The stationary nut collar 1310 may be provided as a seat to abut the stationary nut 1302 with the compensating nut 1304. The stationary nut 1302 may also include a stationary nut cavity 1312 into which the compensating nut 1304 may be inserted. The stationary nut cavity 1312 may extend from the stationary nut 1302 and into the mounting part 1308 of the stationary nut 1302. In an example, the diameter of the stationary nut cavity 1312 may be larger in the stationary nut 1302 and may be smaller in the mounting part 1308. In an example, the diameter of the stationary nut cavity 1312 in the stationary nut 1302 depends on the outer diameter of the compensating nut 1304. In particular, the diameter of the stationary nut cavity 1312 in the stationary nut 1302 may be substantially equal to or larger than the diameter of the compensating nut 1304. Furthermore, in this example, the diameter of the stationary nut cavity 1312 in the assembly part 1308 may depend on the outer diameter of the threaded screw 106-1. In an example, the diameter of the stationary nut cavity 1312 in the assembly part 1308 may be substantially equal to the outer diameter of the threaded screw 106-1 to form an interference fit therewith. Therefore, the assembly part 1308 of the stationary nut 1302 can be used as a nut part to engage the threaded screw 106-1 between two parts such as the plastic trim 1202 and the BIW 1204. Since the threaded screw 106-1 is firmly engaged between the first part and the second part, the first part (e.g., the plastic trim 1202) is firmly fastened to the second part (e.g., the BIW 1204). Therefore, fastening of parts, such as plastic to plastic fastening and / or plastic to metal fastening, is achieved without welding the nut on any of the parts. Therefore, the tolerance compensator 1200 eliminates the need for an external nut pre-welded into the part being fastened. Thus, the tolerance compensator 1200 saves costs and resources associated with attaching a nut to a second component.
[0110] The stationary nut 1302 may have an engagement feature ( Fig.13 1308 of the stationary nut 1302. In an example, the engagement feature may include a first set of threads. In an example, the number of threads in the first set of threads may depend on the size of the gap to be compensated.
[0111] In an exemplary embodiment, the stationary nut 1302 may also have an external thread 1314 on its outer surface. The external thread 1314 may allow the stationary nut 1302 to be securely attached to the aperture on the plastic trim 102. In addition, the fitting part 1308 of the stationary nut 1302 may have a plurality of fins 1316 on its outer surface. In an example, the fitting part 1308 of the stationary nut 1302 may include at least two fins 224 separated by a certain distance along the circumferential direction. The fins 224 may be separated to be disposed on each side of the fitting part 1308 of the stationary nut 1302. The fins 224 may allow an operator to easily tighten or loosen the stationary nut 1302 from the plastic trim 102 by hand, thereby eliminating the need for external tools to attach the stationary nut 1302 to the plastic trim 102.
[0112] The compensating nut 1304 may include a compensating nut 110 corresponding to that discussed with reference to FIGS. 1-11. The compensating nut 1304 may also include a compensating nut collar 1318, a compensating nut body 1320, and a compensating nut cavity 1322. The compensating nut collar 1318 may be disc-shaped with a hollow center portion and may be disposed at a distal end of the compensating nut 1304. The distal end of the compensating nut 1304 may be an end that receives the threaded screw 106-1 and is distal to the stationary nut 1302. When the tolerance compensator 1200 is in a retracted state, the compensating nut collar 1318 may be seated on the stationary nut collar 1310. In the retracted state, the compensating nut collar 1318 may abut against a surface of the stationary nut 1302. For example, the compensating nut collar 1318 may be positioned relative to the stationary nut collar 1310 such that substantially the entire portion of the compensating nut 1304 engages the stationary nut 1302 in the retracted state of the tolerance compensator 1200. Furthermore, in the extended state of the tolerance compensator, the compensating nut collar 1318 can be engaged with a second component (e.g. Fig.12 1204) to compensate for the gap between the plastic trim 1202 and the BIW 1204 in the fastened configuration, thereby providing flushness for the assembly of the plastic trim 1202 and the BIW 1204.
[0113] The compensating nut 1304 may also include a compensating nut body 1320. The compensating nut body 1320 may have a corresponding engagement feature 1320 to cooperate with the engagement feature of the stationary nut 1302. In an example, the corresponding engagement feature 1320 may include a second set of threads formed on the outer wall of the compensating nut body 1320 in a circumferential direction. In an example, the number of threads in the second set of threads may depend on the size of the gap to be compensated. In an example, the first set of threads of the stationary nut 1302 and the second set of threads of the compensating nut 1304 may include one of square threads or trapezoidal threads. The presence of the complementary engagement feature 1320 may allow the compensating nut 1304 to move axially relative to the stationary nut 1302 due to the rotation of the threaded screw 106-1 inside the compensating nut 1304.
[0114] The compensating nut cavity 1322 can be configured to receive the retaining clip 1306. Therefore, in an example, the diameter of the compensating nut cavity 1322 can depend on the outer diameter of the retaining clip 1306. In an example, the diameter of the compensating nut cavity 1322 can be substantially equal to or greater than the outer diameter of the retaining clip 1306. In addition, the compensating nut cavity 1322 is configured to receive the threaded screw 106-1 into the retaining clip 1306. The compensating nut 1304 can be made of plastic. The compensating nut 1304 can be made of, for example, PA66GF30, ABS, etc.
[0115] The compensating nut 1304 can be assembled into the stationary nut 1302 of the tolerance compensator 1200. The stationary nut 1302 can be attached to one of the components to be fastened. In an example, the stationary nut 1302 can be assembled with the plastic trim 1202 ( Fig.13 1202). In an exemplary embodiment, the stationary nut 1302 is stationary and can be attached to the plastic trim 1202, for example, by using an adhesive or by self-tapping. In another example, the stationary nut 1302 can rotate relative to the plastic trim 1202. In this example, the stationary nut 1302 can be attached to the plastic trim 1202 by threaded engagement. In an example, the stationary nut 1302 is also made of plastic. The stationary nut 1302 can be made of, for example, polyoxymethylene (POM), polypropylene (PP), and nylon.
[0116] The retaining clip 1306 can receive a fastening element, such as the threaded screw 106-1 disclosed with respect to FIG. 1. As discussed with respect to FIGS. 1 to 11, the retaining clip 1306 can correspond to the retaining clip 112. In an example, the retaining clip 1306 can rotate as the threaded screw 106-1 rotates in response to torque being applied to the threaded screw 106-1 during tightening. Thus, the retaining clip 1306 can form an interference fit with the threaded screw 106 when tightening. In an example, the retaining clip 1306 can be used as a guide to guide the threaded screw 106-1 through the compensating nut 1304 into the stationary nut 1302. The retaining clip 1306 can include an actuatable feature that can be actuated to fixedly engage with the compensating nut 1304 when receiving the threaded screw 106-1. The actuatable feature can be a set of deflectable protrusions 1324 extending along the lateral wall of the retaining clip 1306. When the threaded screw 106-1 is received in the retaining clip 1306 and contacts the set of deflectable protrusions 1324, due to the radial force acting during the tightening of the threaded screw 106-1, the set of deflectable protrusions 1324 can deflect in a radially outward direction relative to the retaining clip 1306. The set of deflectable protrusions 1324 can interfere with the compensating nut 1304 to fixedly engage therewith when deflected. As a reaction force, the set of deflectable protrusions 1324 can push the threaded screw 106-1 along the axial direction of the retaining clip 1306 toward the stationary nut 1302.
[0117] In addition, the retaining clip 1306 can remain stationary relative to the compensating nut 1304. Therefore, the compensating nut 1304 can also rotate with the rotation of the threaded screw 106-1, similar to the rotation of the retaining clip 1306. The compensating nut 1304 can be movable relative to the stationary nut 1302 in the axial direction while rotating with the rotation of the threaded screw 106-1. The rotation direction of the compensating nut 1304 can be opposite to the rotation direction of the threaded screw 106-1. Therefore, the compensating nut 1304 can move outwardly from the stationary nut 1302 a predetermined distance in response to the threaded screw 106-1 moving inwardly relative to the stationary nut 1302. The movement of the compensating nut 1304 outwardly from the stationary nut 1302 allows compensation for a gap existing between the first component being tightened and the second component. The predetermined distance can be equivalent to the gap between the first component being tightened and the second component. As discussed above, a gap can exist between the two components being tightened due to a dimensional tolerance of at least one of the two components.
[0118] In an example, the torque applied to the threaded screw 106 may cause a rotational movement in the retaining clip 1306. Since the retaining clip 1306 is arranged to be fixedly engaged with the compensating nut 1304 when receiving the external fastening element, the retaining clip 1306 is arranged to be stationary relative to the compensating nut 1304 when the torque is applied to the threaded screw 106-1. The torque experienced by the retaining clip 1306 may also act on the compensating nut 1304. In addition, when subjected to the torque, the corresponding engagement feature 1320 of the compensating nut 1304 causes the compensating nut 1304 to move in an axial direction relative to the stationary nut 1302. The direction of the axial movement of the compensating nut 1304 may be opposite to the direction of movement of the threaded screw 106-1.
[0119] In an example, the height of the compensating nut body 1320 of the compensating nut 1304 in the axial direction relative to the stationary nut 1302 can be referred to as the visible height of the compensating nut 1304. In the retracted state of the tolerance compensator 1200, the visible height of the compensating nut 1304 can be minimal. In addition, the visible height of the compensating nut 1304 is greatest in the extended state of the tolerance compensator 1200. As discussed above, the engagement features of the stationary nut 1302 can engage with the external threads 216 of the compensating nut 1304 to cause axial movement of the compensating nut 1304 relative to the stationary nut 1302 in the manner discussed above. In addition, the number of threads on the assembly part 1308 of the stationary nut 1302 can depend on the threads on the threaded screw 106. For example, the external threads of the threaded screw 106 can engage with the internal threads on the assembly part 1308 of the stationary nut 1302 to hold the threaded screw 106 in the engaged position.
[0120] Fig.14a An isometric view of a tolerance compensator 1200 is shown in accordance with an embodiment of the present subject matter. Fig.14b Another isometric view of a tolerance compensator 1200 is shown in accordance with an embodiment of the present subject matter. Fig.14c A top perspective view of a tolerance compensator 1200 according to an example of the present subject matter is shown. Fig.14d A bottom perspective view of a tolerance compensator 1200 according to an example of the present subject matter is shown. Figures 14a-14d Different views of the tolerance compensator 1200 are shown, depicting the Figure 12 to Figure 13 For the sake of brevity, the tolerance compensator 1200 is not depicted again in the isometric view.
[0121] Fig.15a shows a side perspective view of a tolerance compensator in a retracted state according to an example of the present subject matter, Fig.15b A side perspective view of a tolerance compensator in an extended state according to an example of the present subject matter is shown. For simplicity, Figure 15a-15b Will be explained in conjunction with each other.
[0122] As described above, in operation, to compensate for a gap between two components having a dimensional tolerance being fastened together, the compensating nut 1304 may be positioned in a gap between the plastic trim 1202 and the BIW 1204. The tolerance compensator 1200 may be attached to the plastic trim 1202 and initially in a retracted state. In the retracted state, the distal end of the compensating nut 1304 may be at a minimum distance relative to the distal end of the stationary nut 1302. For example, when the tolerance compensator 1200 is in the retracted state, the compensating nut collar 1318 may abut against the stationary nut collar 1310. Thus, the gap may not be initially compensated by the tolerance compensator 1200.
[0123] The threaded screw 106-1 may be inserted through an aperture on the BIW 1204 and received in the tolerance compensator 1200, such as in a retaining clip 1306 of the tolerance compensator 1200. When torque is applied to the threaded screw 106-1, the threaded screw 106 may begin to engage with the tolerance compensator 1200. In particular, the threaded screw 106-1 may engage with the retaining clip 1306 and thereby engage with the compensating nut 1304. When the threaded screw 106-1 engages with the retaining clip 1306, an actuatable feature on the retaining clip 1306 may be actuated in response to receiving the threaded screw 106-1 to fixedly engage the retaining clip 1306 with the compensating nut 1304. For example, a deflectable protrusion 1324 formed on a lateral wall of the retaining clip 1306 may deflect in a radially outward direction relative to the retaining clip 1306 to fixedly engage with an inner wall of the compensating nut 1304. Therefore, the threaded screw 106-1 can be pushed toward the stationary nut 1302 in the axial direction. In addition, the retaining clip 1306 can remain stationary relative to the compensating nut 1304. At the same time, due to the engagement of the threaded engagement structure between the stationary nut 1302 and the compensating nut 1304, the compensating nut 1304 can move axially in a direction away from the stationary nut 1302. This can stretch the compensating nut 1304 relative to the stationary nut 1302 to move a predetermined distance between the two ends. The predetermined distance can be equal to the height of the gap between the plastic trim 1202 being tightened and the BIW 1204. Fig.15b , the compensating nut 1304 can be configured to extend to reach the second end to move the tolerance compensator 1200 to the extended state. In the extended state, the distal end of the compensating nut 1304 can be at a maximum distance relative to the distal end of the stationary nut 1302. In an example, the maximum distance can be determined as the distance that the compensating nut 1304 can extend without disengaging relative to the stationary nut 1302.
[0124] In the contracted state, Fig.15aAs depicted in FIG. 1 , the compensating nut 1304 can be substantially inserted into the stationary nut 1302. Thus, the compensating nut 1304 can have a minimum visible height outside the stationary nut 1302 in the retracted state. Fig.15b , a substantially larger portion of the compensating nut 1304 extends out of the stationary nut 1302 to compensate for the gap between the first and second components being tightened. Therefore, the compensating nut 1304 can have a visible maximum height in the extended state.
[0125] In the extended state, the overall height of the tolerance compensator 1200 is at a maximum because the compensating nut 1304 is at the second end relative to the stationary nut 1302. Therefore, the gap caused by the dimensional tolerance between the plastic trim 1202 and the BIW 1204 is compensated. At the same time, as discussed above, the threaded screw 106-1 can be advanced through the tolerance compensator 1200 to engage with the stationary nut 1302, such as the mounting part 1308 of the stationary nut 1302. Therefore, as Fig.12 As shown in FIG. 1 , the plastic trim 1202 and the BIW 1204 may be fastened together.
[0126] Fig.16 A cross-sectional view of a tolerance compensator 1200 according to an exemplary embodiment is shown. The tolerance compensator 1200 has been shown in an assembled position between a first component and a second component. The first component may be a plastic trim 1202, and the second component may be a body-in-white (BIW) 1204. An external fastening element such as a threaded screw 106-1 may be engaged between the plastic trim 1202 and the BIW 1204. Fig.16 In one embodiment, the tolerance compensator 1200 may be in an intermediate position during the transition from the retracted state to the extended state.
[0127] Fig.17 A top view of a tolerance compensator 1700 according to another example of the present subject matter is shown.
[0128] Fig.18 A side view of a tolerance compensator 1700 according to another example of the present subject matter is shown. Fig.17 and Fig.18 .
[0129] The tolerance compensator 1700 may be provided with a rotation inhibiting mechanism. The tolerance compensator 1700 may correspond to Fig.12To the tolerance compensator 1200 discussed in FIG. 15 . In the present exemplary embodiment, the stationary nut 1302 of the tolerance compensator 1700 is designed to include a retaining tab 1702 protruding from a portion of the outer circumferential surface of the stationary nut 1302. In an example, the tolerance compensator 1700 may have at least two retaining tabs 1702 formed at laterally opposite ends on the stationary nut 1302. The retaining tab 1702 may be received in a recess (not shown) formed on the plastic trim 1202. The retaining tab 1702 received in the recess on the plastic trim 1202 may prevent accidental rotation beyond the opening on the plastic trim 1202. The rotation inhibiting mechanism may prevent accidental disengagement of the tolerance compensator-trim assembly due to shock and vibration experienced during daily operation of the vehicle.
[0130] Fig.19 An illustration of a method 1900 of fastening a first component to a second component according to an example of the present subject matter is provided. The order in which the method is described is not intended to be construed as a limitation, and any number of the described method blocks can be combined in any order to implement the method, or an alternate method.
[0131] It can also be understood that, as mentioned above, with reference to FIGS. 1 and Fig.12 As explained above, the first component may be the CCB 102 or the plastic trim 1202. Fig.12 As illustrated, the second component may be BIW 104 or BIW 1204 .
[0132] At block 1902, a first component and a second component are aligned to align a first aperture of the first component with a second aperture of the second component. The first component has a first aperture, and the second component has a second aperture. In an example, the alignment includes aligning the first aperture with the second aperture.
[0133] At block 1904, a tolerance compensator is positioned between a first component and a second component configured to receive an external fastening element. The tolerance compensator may correspond to the tolerance compensator described above with reference to FIGS. 1 and 2 , respectively. Fig.12 The illustrated tolerance compensators 100 and 1200. In an example, the external fastening element comprises a threaded screw 106-1 as described above. In an example, positioning the tolerance compensator may include fixedly engaging a stationary nut of the tolerance compensator with a second aperture of the second component.
[0134] At block 1906, an external fastening element is inserted from the first aperture to be inserted through the tolerance compensator into the second aperture. In an example, the external fastening element is received in a cavity of a retaining clip of the tolerance compensator. The insertion of the external fastening element may cause the extension of an actuatable feature of the retaining clip to securely engage the retaining clip with the compensating nut.
[0135] At frame 1908, the external fastening element is in a first rotational direction for fastening the first component to the second component. The compensating nut moves in a second rotational direction in response to applying a torque to the retaining clip to move a predetermined distance between two end positions. In addition, the compensating nut rotates integrally with the retaining clip and rotates in an axial direction relative to the stationary nut. In an example, the compensating nut can rotate in a second rotational direction. In an example, the second rotational direction is opposite to the first rotational direction. In addition, the compensating nut can move to a predetermined distance during the fastening of the first component and the second component to cover the gap between the first component and the second component.
[0136] Although examples of tolerance compensators (e.g., tolerance compensators 100 and tolerance compensators 1200) have been described in language specific to structural features and / or methods, it should be understood that the appended claims are not limited to the specific features described. Rather, the specific features are disclosed as examples of tolerance compensators.
Claims
1. A tolerance compensator (100, 900, 1000, 1100, 1200, 1700), comprising: a stationary nut (108, 1302), the stationary nut comprising an engagement feature (202); a compensating nut (110, 1304) cooperating with the stationary nut (108, 1302), the compensating nut (110, 1304) comprising a complementary engagement feature (204, 1320) to cooperate with the engagement feature (202) of the stationary nut (108, 1302), the compensating nut (110, 1304) being movable in an axial direction relative to the stationary nut (108, 1302); and A retaining clip (112, 1306) is disposed relative to the compensating nut (110, 1304) and can be fixedly engaged with the compensating nut to be stationary relative to the compensating nut (110, 1304) and movable relative to the stationary nut (108, 1302), the retaining clip (112, 1306) comprising: a cavity (606) for receiving and engaging with an external fastening element (106-1); as well as an actuatable feature configured to actuate upon receipt of the external fastening element (106-1) to fixedly engage the compensating nut (110, 1304), The compensating nut (110, 1304) is configured to move integrally with the retaining clip (112, 1306) along the axial direction relative to the stationary nut (108, 1302) in response to applying torque to the retaining clip (112, 1306), and the compensating nut (110, 1304) is configured to move a predetermined distance between two end positions.
2. The tolerance compensator (100, 900, 1000, 1100, 1200, 1700) according to claim 1, wherein the engagement feature (202) of the stationary nut (108, 1302) includes a first set of threads, and wherein the complementary engagement feature (204, 1320) of the compensating nut (110, 1304) includes a second set of threads that are complementary to the first set of threads of the stationary nut (108, 1302) to cooperate therewith.
3. The tolerance compensator (100, 900, 1000, 1100, 1200, 1700) according to claim 2, wherein the first set of threads and the second set of threads are one of square threads and trapezoidal threads.
4. The tolerance compensator (100, 900, 1000, 1100, 1200, 1700) according to claim 2, wherein the engagement feature (202) of the stationary nut (108, 1302) and the complementary engagement feature (204, 1320) of the compensating nut (110, 1304) form one of a left-hand thread structure and a right-hand thread structure, and wherein the actuatable feature is configured to be fixedly engaged with the compensating nut (110, 1304) to act as the opposite of the left-hand thread structure and the right-hand thread structure of the engagement feature (202) of the stationary nut (108, 1302) and the complementary engagement feature (204, 1320) of the compensating nut (110, 1304).
5. The tolerance compensator (100, 900, 1000, 1100, 1200, 1700) according to claim 1, wherein the compensating nut (110, 1304) is suitable for moving in a first rotational direction relative to the stationary nut (108, 1302) in response to a torque applied to the retaining clip (112, 1306) in a second rotational direction.
6. The tolerance compensator (100, 900, 1000, 1100, 1200, 1700) according to claim 1, wherein the stationary nut (108, 1302) includes a stationary nut cavity (1312) for receiving the compensating nut (110, 1304).
7. The tolerance compensator (100, 900, 1000, 1100, 1200, 1700) according to claim 1, wherein the stationary nut (108, 1302), the compensating nut (110, 1304) and the retaining clip (112, 1306) are made of plastic.
8. The tolerance compensator (100, 900, 1000, 1100, 1200, 1700) according to claim 1, wherein the two end positions include: a first end position, wherein the compensating nut (110, 1304) is in a retracted position relative to the stationary nut (108, 1302), the retracted position being a position in which the distal end of the compensating nut (110, 1304) is at a minimum distance relative to the distal end of the stationary nut (108, 1302); and A second end position, wherein the compensating nut (110, 1304) is in an extended position, wherein the extended position is a position in which the distal end of the compensating nut (110, 1304) is at a maximum distance relative to the distal end of the stationary nut (108, 1302).
9. A tolerance compensator (100, 900, 1000, 1100, 1200, 1700) according to claim 1, wherein the actuatable feature of the retaining clip (112, 1306) includes a set of deflectable protrusions (602, 1324), which are formed in a cutout in the lateral wall (604) of the retaining clip, and when the fastening element is received, the deflectable protrusions (602, 1324) can be deflected in a radially outward direction relative to the retaining clip (112, 1306) to engage and secure the retaining clip (112, 1306) with the compensating nut (110, 1304).
10. The tolerance compensator (100, 900, 1000, 1100, 1200, 1700) according to claim 1, wherein the stationary nut (108, 1302) includes a retaining tab (1702) protruding from a portion of an outer circumference of the stationary nut, wherein the retaining tab (1702) is configured to form an interference fit with an external component to prevent accidental rotation of the stationary nut (108, 1302).
11. The tolerance compensator (100, 900, 1000, 1100, 1200, 1700) according to claim 1, wherein the stationary nut (108, 1302) includes a complementary fastening element (106-2, 1702), which is arranged at an end opposite to an end configured to receive the external fastening element (106-1) to engage with the external fastening element (106-1).
12. The tolerance compensator (100, 900, 1000, 1100, 1200, 1700) according to claim 11, wherein the complementary fastening element (106-2, 1702) and the stationary nut (108, 1302) form an integral structure.
13. The tolerance compensator (100, 900, 1000, 1100, 1200, 1700) of claim 11, wherein the complementary fastening element (106-2, 1702) is one of a wing nut and a hexagonal nut.
14. The tolerance compensator (100, 900, 1000, 1100, 1200, 1700) of claim 1, wherein the stationary nut (108, 1302) includes a mounting component (114, 1308) for arranging the stationary nut (108, 1302) for coupling the tolerance compensator to an external component.
15. The tolerance compensator (100, 900, 1000, 1100, 1200, 1700) of claim 14, wherein the stationary nut (108, 1302) comprises a plurality of fixing means configured to couple with complementary grooves provided on the mounting component (114, 1308).
16. The tolerance compensator (100, 900, 1000, 1100, 1200, 1700) according to claim 14, wherein the mounting component (114, 1308) includes a set of cantilever legs, each cantilever leg in the set of cantilever legs includes a snap at its free end to engage with the external component in a snap-fit configuration.
17. The tolerance compensator (100, 900, 1000, 1100, 1200, 1700) according to claim 14, wherein the mounting part (114, 1308) and the stationary nut (108, 1302) form an integral structure.
18. A method of fastening a first component to a second component, the method comprising: aligning the first component and the second component, the first component having a first aperture and the second component including a second aperture, wherein the aligning comprises aligning the first aperture with the second aperture; A tolerance compensator (100, 900, 1000, 1100, 1200, 1700) is positioned between the first component and the second component, the tolerance compensator (100, 900, 1000, 1100, 1200, 1700) comprising: a stationary nut (108, 1302), the stationary nut comprising an engagement feature (202); a compensating nut (110, 1304) cooperating with the stationary nut (108, 1302), the compensating nut (110, 1304) comprising a complementary engagement feature (204, 1320) to cooperate with the engagement feature (202) of the stationary nut (108, 1302), the compensating nut (110, 1304) being movable in an axial direction relative to the stationary nut (108, 1302); and A retaining clip (112, 1306) is disposed relative to the compensating nut (110, 1304) and can be fixedly engaged with the compensating nut to be stationary relative to the compensating nut (110, 1304) and movable relative to the stationary nut (108, 1302), the retaining clip (112, 1306) comprising: a cavity (606) for receiving and engaging with an external fastening element (106-1); and an actuatable feature, which is actuatable to fixedly engage the compensating nut (110, 1304) upon receipt of the outer fastening element (106-1), inserting the external fastening element (106-1) from the first aperture to be inserted through the tolerance compensator (100, 900, 1000, 1100, 1200, 1700) into the second aperture, wherein the external fastening element (106-1) is received in the cavity (606) of the retaining clip (112, 1306), the insertion of the external fastening element (106-1) causing the actuatable feature of the retaining clip (112, 1306) to extend to fixedly engage the retaining clip (112, 1306) with the compensating nut (110, 1304); and rotating the external fastening element (106-1) in a first rotational direction for fastening the first component to the second component, wherein the compensating nut (110, 1304) moves in a second rotational direction in response to applying a torque to the retaining clip (112, 1306) to move a predetermined distance between two end positions, wherein the compensating nut (110, 1304) rotates integrally with the retaining clip (112, 1306) and rotates in the axial direction relative to the stationary nut (108, 1302), and The compensating nut (110, 1304) moves to the predetermined distance during the tightening of the first component and the second component to cover the gap between the first component and the second component.
19. The method of claim 18, wherein positioning the tolerance compensator (100, 900, 1000, 1100, 1200, 1700) between the first component and the second component comprises fixedly engaging the stationary nut (108, 1302) with a second aperture of the second component.
20. The method of claim 18, wherein the second rotational direction is opposite to the first rotational direction.