Fixing device

Abstract

A deflection nut (100), comprising a flange (120) serving as a contact surface and a body part (160), the flange and the body part are connected to each other by two opposing connecting straps (140) having elastic deformation outward, the nut is provided with a screw passage (150) having a first fixing hole (122) in the central part of the flange and a second fixing hole (162) in the body part. A protrusion (124) projecting toward the body part is formed on a surface of the flange, and an insertion recess into which the protrusion is inserted is formed in the body part; Alternatively, a protrusion (124) projecting toward a surface of the flange is formed in the body part, and an insertion recess into which the protrusion is inserted is formed in the surface of the flange. Abstract figure: Fig. 1

Description

Title of the invention: Fixing device Technical field of the invention

[0001] The present invention relates to the technical field of mechanical fastening devices, more precisely to clearance nuts used to fasten components in vehicles, such as those present on a dashboard. Prior art

[0002] It is known that nuts are commonly used to secure various elements in a vehicle. These elements may include meters, glove boxes and other components generally mounted on the dashboard.

[0003] These nuts are usually inserted into a housing in the bracket, with a screw threaded through a mounting hole. The nut and screw work together to secure the mounted part to the dashboard.

[0004] In some cases, these nuts may be designed to be removable to allow for disassembly or replacement of the fastened components. However, the disassembly process can be difficult and may risk damaging the nut or causing it to fall inside the dashboard, which may result in unwanted noise.

[0005] In addition, during the screwing process, the nut may begin to rotate, which can potentially cause shock if screwing is performed quickly. This shock can potentially damage the nut, for example, by breaking the connecting straps.

[0006] Therefore, there is a recognized need for an improved solution, particularly one that can ensure stability of the nut during the screwing process, prevent shocks during screwing, and facilitate the disassembly process without causing damage or unwanted noise. Statement of the invention

[0007] The present invention aims to overcome these drawbacks by providing a nut with clearance, which ensures the stability of the nut during the screwing process, prevents shocks during screwing and facilitates the disassembly process without causing damage or unwanted noise.

[0008] For this purpose, according to one aspect of the invention, the present invention relates to the clearance nut which comprises a collar serving as a contact surface and a body part, the collar and the body part are connected to each other by two opposite connecting straps having an elastic deformation towards the outside, the nut with travel is provided with a screw passage comprising a first fixing hole in the central part of the collar and a second fixing hole in the body part.

[0009] A protrusion protruding toward the body portion is formed on a surface of the flange, and an insertion recess into which the protrusion is inserted is formed in the body portion;

[0010] Alternatively, a protrusion protruding toward a surface of the flange is formed in the body portion, and an insertion recess into which the protrusion is inserted is formed on the surface of the flange.

[0011] According to one embodiment, the clearance nut is provided with two diagonally arranged ribs which connect the collar to the connection straps, said ribs being designed to come into contact with a sheet metal.

[0012] According to one embodiment, the connection straps comprise retaining notches located near the collar.

[0013] According to one embodiment, the holding notches are arranged in the form of stages, and the connecting straps have bulges located between two stages of the holding notches.

[0014] According to one embodiment, the protuberance has a rectilinear shape, and optionally, the protuberance comprises two parts separated by the screw passage.

[0015] According to one embodiment, the protrusion is retracted into a state of close contact with an insertion recess interior surface when a screw is fastened.

[0016] According to one embodiment, the opposing connecting straps each have essentially a V shape as they move outward.

[0017] According to one embodiment, the clearance nut is made of plastic.

[0018] According to one embodiment, the clearance nut is made of metal. According to another aspect of the present invention, an assembly comprises the clearance nut according to the present invention and a screw. Brief description of the figures

[0019] Other advantages, aims and characteristics of the present invention emerge from the following description given, for explanatory and in no way limiting purposes, with reference to the appended drawings, in which:

[0020] [Fig.l] shows a front view of a clearance nut according to one embodiment of the present invention.

[0021] [Fig.2] illustrates a top view of a clearance nut according to an example of the present invention.

[0022] [Fig. 3] shows a sectional view of a clearance nut according to an illustrative embodiment of the present invention.

[0023] [Fig.4] shows a sectional view of the upper portion of a clearance nut in accordance with an example of the present invention.

[0024] [Fig. 5] provides a close-up view of a deflection nut engaged with a support piece according to one embodiment of the present invention.

[0025] [Fig.6A] shows a close-up view of a deflection nut engaged with a support piece according to an example of the present invention.

[0026] [Fig.6B] shows a close-up view of a deflection nut engaged with a support piece according to an illustrative embodiment of the present invention.

[0027] [Fig.7] illustrates an exploded perspective view of an assembly consisting of a clearance nut and a screw positioned above a support piece according to one embodiment of the present invention.

[0028] [Fig. 8] shows a sectional view of an assembly consisting of a clearance nut and a screw engaged in a support piece in accordance with an example of the present invention.

[0029] [Fig.9] shows a sectional view of an assembly in which a screw interfaces with a clearance nut within a support piece according to an illustrative embodiment of the present invention. Description of the embodiments

[0030] The different figures as well as the elements of the same figure are not necessarily represented on the same scale. In all the figures, identical elements bear the same numerical reference.

[0031] The terminology used in this description should not be interpreted in any way in a limiting or restrictive manner, simply because it is used in conjunction with a detailed description of certain embodiments of the invention.

[0032] The clearance nut 100 according to the invention can be manufactured by molding known plastic material, for example by thermoplastic injection, more particularly in technical plastics such as polyamides, acetal resins, thermoplastic polyesters. Preferably, the clearance nut 100 is made of known materials capable of resisting aging and temperature.

[0033] Alternatively, the clearance nut 100 according to the invention may be made of metal.

[0034] In the embodiment shown in [Fig.l], the deflection nut is shown in a front view, highlighting the general design and arrangement of its components. The deflection nut, designated by the reference numeral 100, includes a flange 120 at one end, which serves as a surface of contact to interface with other components, such as a 300 dashboard or support part.

[0035] The collar 120, preferably in the center, is provided with a first fixing hole 122, which is part of the screw passage 150 which allows the insertion and fixing of a screw 200. On the surface of the collar 120, there is a protrusion 124, which is adapted to protrude towards the body portion 160 of the deflection nut 100. This protrusion 124 is a structural feature which can engage with a corresponding insertion recess 184 in the body portion 160 to facilitate alignment and stability of the nut when assembled.

[0036] The body portion 160 of the deflection nut 100 is connected to the collar 120 by two opposing connecting straps 140. These straps 140 are designed to have an outward elastic deformation, which allows for a certain flexibility and resilience in the structure of the nut. The connecting straps 140 are essential to the ability of the deflection nut to maintain its position and resist rotation when the screw 200 is secured.

[0037] [Fig. 2] shows a top view of the clearance nut. The screw passage 150 allows the insertion and fixing of a screw 200. The first fixing hole 122, located in the collar 120, is an integral part of the screw passage 150 and is the point through which the screw 200 enters the clearance nut 100.

[0038] [Fig.2] illustrates the alignment and positioning of the first fixing hole 122 in the collar 120, providing a clear view of its location and its role in the assembly of the clearance nut with a screw 200.

[0039] The representation of the first fastening hole 122 relative to the screw passage 150 is an aspect of the deflection nut that is central to its function as a fastening device. This view helps convey the ease with which the screw 200 can be aligned and inserted into the deflection nut 100.

[0040] [Fig. 3] shows a sectional view of the deflection nut, one embodiment of the present invention. In this embodiment, the protrusion 124 is formed on the surface of the flange 120 and projects toward the body portion 160. The corresponding insertion recess 184 is formed in the body portion 160 to receive the protrusion 124. This configuration is designed to ensure proper alignment and prevent rotational movement of the deflection nut 100 when a screw 200 is inserted and secured.

[0041] [Fig. 3] shows the interaction between the protrusion 124 and the insertion recess 184, demonstrating how the protrusion 124 fits into the recess 184 to secure the position of the deflection nut. The sectional view also shows a clear representation of the screw passage 150, which includes the first fixing hole 122 in the collar 120 and the second fixing hole 162 in the body portion 160, through which the screw 200 is intended to pass.

[0042] As an alternative to the embodiment not illustrated in [Fig. 3], the protrusion 124 is formed in the body portion 160 and projects toward the flange 120, with the insertion recess 184 formed on the surface of the flange 120 to receive the protrusion 124. This alternative configuration would represent a different structural arrangement intended to achieve the same alignment and stability objectives.

[0043] [Fig. 4], which shows a sectional view of the upper portion of a clearance nut, provides an overview of the relative movement between the protrusion 124 and the insertion recess 184.

[0044] In this figure, the protrusion 124, which is located on the collar 120 or the body portion 160 according to the claimed alternative 1 which is shown, is designed to fit snugly into the insertion recess 184. The figure illustrates how, upon insertion of a screw 200 through the screw passage 150, the protrusion 124 can move relative to the insertion recess 184. This movement is particularly relevant when the screw is being tightened or loosened, as the protrusion 124 can either protrude into the insertion recess 184 or withdraw therefrom.

[0045] The relative movement between these two components is a design consideration that ensures that the deflection nut remains securely positioned against rotational forces when the screw is tightened. This feature is beneficial in facilitating the disassembly process, allowing the protrusion 124 to smoothly retract from the insertion recess 184 without causing damage or creating unwanted noise.

[0046] [Fig. 5] shows a close-up view of a deflection nut engaged with a backing sheet, highlighting the presence of bulges 145. In this particular implementation, the bulges 145 are strategically positioned on the connecting straps 140, located between the retaining notches 144.

[0047] Advantageously, the presence of the bulges 145 in this context allows for improved mechanical performance and functionality of the deflection nut. More specifically, the bulges 145 serve to reinforce the connecting straps 140, providing increased resistance to forces exerted during installation and securing of the deflection nut. This reinforcement helps prevent overelastic deformation or potential breakage of the straps 140, thereby maintaining the structural integrity of the deflection nut under stress.

[0048] Additionally, the bulges 145 contribute to the precise and secure positioning of the deflection nut when engaged with the backing sheet. The progressive steps created by the retaining notches 144 and the bulges 145 allow for controlled insertion into the backing sheet, ensuring that the deflection nut is correctly positioned. This feature is particularly beneficial when of the assembly process, as it provides clear feedback to the installer and prevents the deflection nut from rotating or becoming misaligned when the 200 screw is driven through the 150 screw passage.

[0049] [Fig.5] illustrates the deflection nut in a state of engagement with the backing sheet, showing how the bulges 145 interact with the backing sheet material to achieve these technical effects.

[0050] The close-up view provides a detailed representation of the bulges 145 relative to the surrounding components, demonstrating their role in the overall design and effectiveness of the deflection nut as a fastening device.

[0051] In the specific implementation illustrated in [Fig.6A], the deflection nut incorporates ribs 130, which are structural elements connecting the flange 120 to the connecting straps 140. These ribs 130 are preferably arranged diagonally, thereby improving the design and functionality of the deflection nut. The ribs 130 are designed to come into direct contact with the backing sheet or dashboard 300. This contact is not merely incidental; it serves to prevent the deflection nut from rotating or moving during the screwing process.

[0052] The presence of the ribs 130 ensures that the deflection nut remains properly aligned with the screw passage 150, allowing for smooth and stable insertion of the screw 200. [Fig.6A] illustrates the deflection nut in engagement with the backing sheet, with the ribs 130 contacting and providing the technical effects mentioned above. The figure provides a detailed view of how the ribs 130 interact with the backing sheet, demonstrating their role in strengthening the deflection nut and improving its fastening capabilities. Advantageously, the inclusion of the ribs 130 in the design of the deflection nut solves several problems, including stability of the nut during the screwing process, prevention of shocks during screwing, and facilitation of the removal process without causing damage or unwanted noise.The 130 ribs contribute to a more efficient and reliable fastening system that is easier to install and remove, and provides a secure grip for the components it is designed to secure.

[0053] Advantageously, the presence of the ribs 130 attenuates the oscillation of the nut 100 caused by the oversized opening of the support panel when the screw is not installed.

[0054] In the implementation shown in [Fig.6B], the deflection nut has longer ribs 130 compared to those illustrated in [Fig.6A]. These extended ribs 130 serve as a connection between the collar 120 and the connecting straps 140, their increased length providing additional advantages to the design and functionality of the deflection nut.

[0055] Advantageously, the fact that the ribs 130 are longer allows for further reinforcement of the support and stability provided to the clearance nut.

[0056] Additionally, the longer ribs 130 may help prevent the deflection nut from rotating or moving during the screwing process. The extended contact area provided by the longer ribs may provide more friction and resistance to movement, thereby ensuring that the deflection nut remains properly aligned with the screw passage 150. This alignment is critical for smooth and stable insertion of the screw 200 and for the overall integrity of the fastened assembly.

[0057] [Fig.6B] shows a close-up view of the deflection nut as it engages the backing sheet, with the longer ribs 130 contacting and providing the described technical effects. The figure provides a visual representation of the position of the extended ribs 130 relative to the other components of the deflection nut and the backing sheet, highlighting their role in enhancing the performance of the deflection nut as a fastening device.

[0058] The presence of longer ribs 130 in the design of the deflection nut solves the problems related to stability during the screwing process, prevention of shocks during screwing and facilitation of the removal process without causing damage or unwanted noise. The longer ribs 130 contribute to a more efficient and reliable fastening solution, providing increased durability and a secure grip for the components it is designed to secure.

[0059] [Fig.7] shows an exploded perspective view of an assembly comprising a deflection nut and a screw positioned above a backing sheet. This view is particularly useful for understanding the relationship between the deflection nut, the screw and the backing sheet prior to assembly.

[0060] In this representation, the screw 200 is positioned above the clearance nut, aligned with the screw passage 150, which includes the first fixing hole 122 in the collar 120 and the second fixing hole 162 in the body portion 160.

[0061] The backing sheet or dashboard 300 is also shown, and this is the component to which the deflection nut will be attached using the screw 200.

[0062] This figure shows the orientation and alignment of the deflection nut and screw relative to the backing sheet and demonstrates that the deflection nut is designed to be easily positioned on the backing sheet, with the screw then inserted and tightened to complete the attachment.

[0063] [Fig.8] shows a sectional view of an assembly consisting of a deflection nut and a screw engaged in a support piece. This view is essential to illustrate the interaction between the deflection nut 100 and the screw 200 during the fastening process.

[0064] In this representation, the deflection nut 100 is shown in a state where it has been positioned on the backing sheet or dashboard 300. The flange 120 of the deflection nut is in contact with the surface of the backing sheet, providing a stable base for the nut. The screw 200 is inserted through the backing sheet and into the deflection nut, passing through the first fixing hole 122 in the flange 120 and engaging the second fixing hole 162 in the body portion 160.

[0065] The sectional view of [Fig. 8] highlights the engagement of the protrusion 124 with the insertion recess 184, which is a feature designed to prevent the deflection nut from rotating during the fastening process. This engagement ensures that the deflection nut remains properly aligned with the screw passage 150, allowing for a secure and stable connection. In addition, the figure shows the connecting straps 140, which provide elasticity and resistance to the tightening force of the screw. If present, the bulges 145 and the retaining notches 144 on the connecting straps would also be visible, contributing to the ability of the deflection nut to maintain its position and resist deformation under load.

[0066] [Fig.9] illustrates a sectional view of an assembly where a screw interfaces with a deflection nut in a backing sheet. This view provides a detailed look at the final step of the installation process, where the screw 200 is fully engaged with the deflection nut 100, securing it to the backing sheet or dashboard 300.

[0067] In this particular representation, the deflection nut 100 is shown in its operational state, with the screw 200 having been inserted through the backing sheet and tightened in place. The flange 120 of the deflection nut is in direct contact with the backing sheet, acting as a stable base that distributes the force of the tightened screw over a larger area, thereby reducing stress concentrations and potential damage to the backing sheet.

[0068] The protrusion 124 is engaged with the insertion recess 184, which is a design feature that prevents the deflection nut from rotating or moving during the tightening process. This engagement ensures that the deflection nut remains properly aligned with the screw passage 150, allowing for a secure and stable connection that resists loosening over time.

[0069] The connecting straps 140 provide the deflection nut with the flexibility to accommodate slight misalignments and absorb vibrations, which may be particularly useful in automotive applications where the deflection nut may be subjected to dynamic loads. If the design includes bulges 145 and retaining notches 144, these would contribute to the ability of the deflection nut to maintain its position and resist deformation under the tightened screw.

[0070] The cross-sectional view in [Fig.9] is a clear representation of the deflection nut in its final locked position within an assembly. It demonstrates the secure fixation achieved by the design of the deflection nut and screw, highlighting the effectiveness of the deflection nut features in providing a stable and reliable fastening solution. This figure serves as a visual guide to understanding the fully assembled state of the deflection nut and its interaction with the screw and backing sheet.

[0071] The steps of installing the nut according to the invention are illustrated by figures 7, 8 and 9.

[0072] First, place the deflection nut 100 onto the backing sheet 300, aligning it with the predefined location where the nut will be secured. The flange 120 of the deflection nut will contact the surface of the backing sheet, and if present, the ribs 130 will help stabilize the position of the nut. Ensure that the first attachment hole 122 is aligned with the hole in the backing sheet where the screw 200 will be inserted.

[0073] Next, insert the screw 200 through the aligned holes in the backing sheet 300 and the deflection nut 100. The screw will pass through the first fastening hole 122 in the flange 120 and continue into the second fastening hole 162 in the body portion 160 of the deflection nut. At this stage, the screw is not yet tightened, but it is held in place, ready for fastening.

[0074] Using a suitable tool, such as a screwdriver or power drill, begin tightening the screw 200 into the deflection nut 100. When the screw is tightened, the protrusion 124 and the insertion recess 184 (if present) will engage to prevent the nut from turning. The connecting straps 140, possibly reinforced by bulges 145 and retaining notches 144, will provide elasticity and resistance to the tightening force. Continue tightening the screw until it is securely fastened, ensuring that the deflection nut is firmly attached to the backing sheet 300. The final position of the screw and nut assembly will be such that the deflection nut will be locked in place, with the protrusion 124 fully engaged in the insertion recess 184, ensuring a stable and secure attachment.

[0075] The following steps are given to illustrate how to remove the deflection nut from the assembled state as shown in [Fig.9].

[0076] Begin by using a suitable tool, such as a screwdriver or power drill, to loosen the screw 200 secured in the deflection nut 100. Turn the tool counterclockwise to unscrew the screw from the deflection nut. Continue turning until the screw is completely disengaged from the second securing hole 162 in the body portion 160 of the deflection nut.

[0077] As the screw 200 is loosened and retracted, the protrusion 124 will gradually disengage from the insertion recess 184. This disengagement is facilitated by the design of the deflection nut, which allows the protrusion to smoothly retract from the recess without damaging the nut or the backing sheet 300.

[0078] Once the screw 200 is completely unscrewed, remove it from the support sheet 300. With the screw no longer holding the deflection nut in place, the nut can be removed from the support sheet.

[0079] Lift the deflection nut 100 from the support sheet 300. If the deflection nut is equipped with features such as connecting straps 140, bulges 145 and retaining notches 144, they may offer some resistance when removing the nut. Carefully apply a slight outward force to the connecting straps if they are in contact with the support sheet to facilitate removal of the nut.

[0080] The process of removing the deflection nut is designed to be simple and non-destructive, thus allowing easy maintenance, repair or replacement of components as needed for the application in which the deflection nut is used. List of reference signs

[0081] [Tables 1] References Designations 100 Clearance nut 120 Collar 160 Body part 140 Connecting straps 150 Screw passage 122 First fixing hole 162 Second fixing hole 164 Nut barrel 124 Protrusion 200 Screw 130 Rib 300 Support panel / Dashboard 144 Holding notch 145 Bulges 184 Insertion recess

Claims

Claims

1. A deflection nut (100), comprising a flange (120) serving as a contact surface and a body portion (160), the flange (120) and the body portion (160) are connected to each other by two opposing connecting straps (140) having an outward elastic deformation, the deflection nut (100) is provided with a screw passage (150) having a first fixing hole (122) in the central portion of the flange (120) and a second fixing hole (162) in the body portion (160), in which a protrusion (124) projecting toward the body portion (160) is formed on a surface of the flange (120), and an insertion recess (184) into which the protrusion (124) is inserted is formed in the body portion (160), or a protrusion (124) projecting toward a surface of the collar (120) is formed in the body portion (160),and an insertion recess (184) into which the protrusion (124) is inserted is formed on the surface of the flange (120).

2. A deflection nut (100) according to claim 1, wherein the deflection nut (100) is provided with two diagonally arranged ribs (130) which connect the collar (120) to the connecting straps (140), said ribs (130) being adapted to contact a sheet metal (300).

3. A clearance nut (100) according to claim 1 or 2, wherein the connecting straps comprise retaining notches (144) located near the collar (120).

4. A clearance nut (100) according to any preceding claim, wherein the retaining notches (144) are arranged in stages, and the connecting straps (140) have bulges (145) located between two stages of the retaining notches (144).

5. A clearance nut (100) according to any preceding claim, wherein the protrusion (124) has a rectilinear shape, and optionally, the protrusion (124) comprises two parts separated by the screw passage (150).

6. A clearance nut (100) according to any preceding claim, wherein the protrusion (124) is retracted into a state of close contact with an insertion recess inner surface (184) when a screw (200) is fastened.

7. A clearance nut (100) according to any preceding claim, wherein the opposing connecting straps (140) each have a substantially V shape as they diverge outwardly.

8. A clearance nut (100) according to any preceding claim, characterized in that it is made of plastic.

9. A clearance nut (100) according to any one of claims 1 to 7, characterized in that it is made of metal.

10. An assembly comprising a clearance nut (100) according to any one of the preceding claims and a screw (200).

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