Automobile safety belt guide ring

Abstract

The application discloses a car safety belt guide ring and belongs to the technical field of car parts, which comprises a main body and an external part, the main body is a metal material made of a whole ring structure, the main body is divided into an upper part and a lower part, a guide hole is formed in the lower part, the upper edge of the guide hole is connected with the upper part, the upper part is provided with a round hole, a circle of convex edges is arranged on the edge of the round hole, the lower edge of the round hole extends to one side of the guide hole to form an extension piece, the external part is made of plastic, the external part wraps the front side of the upper part, the external part wraps the rear side of the extension piece and the outer periphery of the round hole, and the external part wraps the outer periphery of the upper part and the lower part. The combination of the metal main body and the plastic external part realizes high strength, high wear resistance and high corrosion resistance.

Description

Technical Field

[0001] This application relates to the field of automotive component technology, and in particular to an automotive seat belt guide ring. Background Technology

[0002] The seatbelt guide ring is a crucial component of a car's seatbelt system, especially in three-point seatbelt systems, where its role is indispensable. Under normal operating conditions, the seatbelt webbing emerges from the retractor outlet in the lower center of the vehicle body, extends upwards along the B-pillar or C-pillar, and reaches the occupant's shoulder. There, it is redirected by the shoulder guide ring, effectively restraining the occupant and providing protection. Therefore, the performance of the guide ring directly affects the seatbelt's strength, comfort, and overall safety, among other important functions.

[0003] Relevant prior art, such as Chinese patent application "A Seatbelt Guide Ring," application number CN202221041717.7, discloses that: the seatbelt guide ring has a strip-shaped guide hole, which, from one end to the other, consists of a meandering section, a straight section, and another meandering section; the seatbelt guide ring includes a metal part and a plastic part, the metal part having a guide hole end face, and the front side of the metal part transitioning to the guide hole end face via a front guide arc surface. By setting the meandering section, the seatbelt can slide smoothly, but after the seatbelt slides into the meandering section, it will bend laterally, thus automatically preventing the seatbelt from continuing to slide laterally, significantly reducing the possibility of the seatbelt contacting the end face of the guide hole; and thus reducing the possibility of the seatbelt being worn and frayed by the seatbelt guide ring.

[0004] Currently available seatbelt guide rings on the market still have some problems: some guide rings are prone to deformation due to insufficient strength, rust due to poor corrosion resistance, and surface wear due to poor abrasion resistance during long-term use, which in turn affects the normal use of the seatbelt and its protective effect on occupants. Furthermore, with the development of technology, the market has placed higher demands on automotive components, expecting products with higher strength, better corrosion resistance, and superior abrasion resistance. Utility Model Content

[0005] The technical problem to be solved by this application is to provide an automotive seat belt guide ring that achieves high strength, high wear resistance and high corrosion resistance through the combination of a metal main body and a plastic outer part.

[0006] The technical solution adopted in this application is as follows: a car seat belt guide ring, including a main body and an outer part. The main body is a ring-shaped structure made of metal material, which is divided into an upper part and a lower part. The lower part has a guide hole, the upper edge of which is connected to the upper part. The upper part has a circular hole with a raised edge around the edge. The lower edge of the circular hole extends toward the guide hole to form an extension piece. The outer part is made of plastic and wraps around the front side of the upper part, the rear side of the extension piece and the outer periphery of the circular hole, and the outer periphery of the upper and lower parts.

[0007] Compared with existing technologies, the advantages of this application are as follows: First, the main body is made of metal, which inherently possesses high strength. During vehicle operation, seat belts may be subjected to various complex forces, such as the reaction force generated by the restraint force of the seat belt on the occupant during emergency braking. The metal main body can withstand greater tensile and compressive forces, and compared to pure plastic guide rings, it is less prone to deformation during long-term use.

[0008] Secondly, the outer components are made of plastic and enclose the outer surfaces of the upper and lower components. Plastic materials have excellent abrasion resistance. During seatbelt use, the seatbelt webbing and the outer surface of the guide ring will frequently come into contact and rub against each other; the plastic outer components can withstand this frictional force. Furthermore, while the metal main body has high strength, it is susceptible to corrosion. The outer components are made of plastic, which has excellent corrosion resistance. By encasing the metal main body with plastic outer components, contact between the metal main body and external corrosive substances can be effectively isolated. For example, liquids such as cleaning agents may splash onto the guide ring inside the car; the plastic outer components can prevent these liquids from contacting the metal main body, preventing rust and thus improving the overall corrosion resistance of the guide ring.

[0009] Finally, the convex edge design at the edge of the circular hole increases the material thickness in that area. In metallic materials, increased thickness directly leads to improved structural strength. This design effectively enhances the guide ring's resistance to deformation in this area, enabling it to withstand greater external impacts without easily being damaged.

[0010] In this application, for ease of description, the figures in the specification are used as reference. Figure 1 The description is based on a baseline and does not imply the positional relationship of the products in actual use.

[0011] In some embodiments of this application, the extension piece has an inverted trapezoidal structure, the outer component located at the extension piece has an overall trapezoidal structure, and the front side of the outer component located at the extension piece has a groove, in which multiple reinforcing pieces are regularly arranged.

[0012] The extension piece has an inverted trapezoidal structure, which effectively distributes stress and enhances structural strength. Meanwhile, the grooves and reinforcing plates on the front side of the outer component further strengthen this area without adding excessive material, achieving both weight reduction and structural strength.

[0013] In some embodiments of this application, the outer periphery of the circular hole protrudes forward to form a convex region, the upper component is generally a triangular structure with a rounded top, the convex region is generally a triangular structure with a rounded top, the edge of the convex region smoothly transitions to the upper component, and the convex region where the circular hole is located is a plane.

[0014] The smooth transition design of the convex area can effectively disperse stress and avoid stress concentration, thereby enhancing the structural strength of the area.

[0015] In some embodiments of this application, the outer component located on the front side of the circular hole is provided with a convex ring, and the outer component wraps around the inner wall of the circular hole; the thickness of the outer component located on the inner wall of the circular hole in the axial direction of the ring is greater than the thickness of the outer component at the convex ring in the axial direction of the ring.

[0016] The raised ring design increases the structural strength of the circular hole's edge. The outer component encloses the inner wall of the circular hole, and its thickness is greater at the inner wall; this design enhances the structural strength and stability of the circular hole area.

[0017] In some embodiments of this application, the outer component is provided with a first reinforcing member and a second reinforcing member on the left and right sides outside the convex ring, respectively. The first reinforcing member and the second reinforcing member both include an irregular outer frame, and a plurality of reinforcing ribs are arranged inside the outer frame.

[0018] The irregular outer frame and reinforcing rib design of the first and second reinforcing members can effectively enhance the overall structural strength of the external components, especially in areas subject to greater stress.

[0019] In some embodiments of this application, the first reinforcing member and the second reinforcing member are located above the guide hole, and the structures of the first reinforcing member and the second reinforcing member are different.

[0020] Different structural designs can provide targeted reinforcement based on different stress conditions, ensuring that the area above the guide hole maintains good strength and stability under forces of different directions and types. This design can also be adjusted according to specific usage scenarios and needs, increasing the product's flexibility and adaptability.

[0021] In some embodiments of this application, the left and right sides of the guide hole are provided with U-shaped side flanges, the outer component is partially filled in the side flanges, and the outer component covers the outer end face of the side flanges.

[0022] During vehicle operation, seat belts may be subjected to forces from different directions. The presence of side flaps can effectively disperse and withstand lateral tension, preventing the guide ring from deforming or being damaged under lateral forces. This ensures that the seat belt can stably pass through the guide ring under various working conditions, thus fulfilling its restraint and protection function for the occupants.

[0023] In some embodiments of this application, the outer component includes a reinforcing ring disposed on the outer peripheral surface of the main body, the reinforcing ring having a sheet-like structure or a planar structure.

[0024] The reinforcing ring design effectively enhances the overall structural strength of external components, especially on the outer circumference of the main body. This design prevents deformation or damage to the external components during long-term use. The planar structure of the reinforcing ring allows for even stress distribution, avoiding localized stress concentration and further improving structural stability and reliability. Furthermore, the reinforcing ring of the external component adopts a sheet-like planar structure that fits tightly against the outer circumference of the main body, effectively limiting the rotation angle of the guide ring after installation and enhancing operational stability. Simultaneously, its flat outer surface can shield external views, preventing direct visibility of the vehicle's interior sheet metal, improving aesthetics and protecting interior privacy.

[0025] In some embodiments of this application, a U-shaped flange is provided below the guide hole. The center of the flange is offset from the plane where the circular hole is located. The flange includes a front flange and a rear flange. The rear flange extends downward into an inverted trapezoidal sheet structure. The area of ​​the front flange is smaller than that of the rear flange. The flange is located behind the front side of the extension sheet.

[0026] This design increases the structural strength and stability of the bottom of the guide ring. In particular, the inverted trapezoidal sheet structure extending from the rear flange can effectively disperse and absorb forces from different directions, improve the guide ring's resistance to deformation, and extend its service life.

[0027] In some embodiments of this application, the outer component is partially filled inside the lower flange, and the outer component covers the outer end face of the lower flange; the reinforcing ring is located in the middle of the lower flange, and the reinforcing ring divides the outer component filled inside the lower flange into two parts: a matching front flange and a matching rear flange.

[0028] The reinforcing ring divides the outer component into two parts. This design enhances the structural stability of the under-flanged area and prevents deformation due to long-term use. The outer component fills and covers the under-flanged area, effectively reducing the contact between the metal body and the external environment, thus improving wear resistance and corrosion resistance.

[0029] Based on common knowledge in the field, the above-described embodiments can be combined arbitrarily. Attached Figure Description

[0030] The present application will be described in further detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present application. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0031] Figure 1 This is a schematic diagram of the structure of this application. Figure 1 ; Figure 2 This is a schematic diagram of the structure of this application. Figure 2 ; Figure 3 This is a schematic diagram of the exploded structure of this application; Figure 4 This is a front view of this application; Figure 5 for Figure 4 A sectional view of section AA in the middle.

[0032] The reference numerals in the attached drawings are explained as follows: 1. Main body; 2. Outer part; 3. Upper part; 4. Lower part; 5. Guide hole; 6. Round hole; 7. Protruding edge; 8. Extension piece; 9. Groove; 10. Reinforcing piece; 11. Outer convex area; 12. Protruding ring; 13. First reinforcing member; 14. Second reinforcing member; 16. Side flange; 17. Reinforcing ring; 18. Lower flange; 19. Front flange; 20. Rear flange. Detailed Implementation

[0033] The present application will now be described in detail with reference to the accompanying drawings.

[0034] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0035] A car seatbelt guide ring, as described in Embodiment 1 Figures 1 to 3 As shown: The system includes a main body component 1 and an outer component 2. The main body component 1 is a ring-shaped structural component made of metal, which inherently possesses high strength. During vehicle operation, the seatbelt may be subjected to various complex forces, such as the reaction force generated by the restraint force of the seatbelt on the occupant during emergency braking. The metal main body component 1 can withstand greater tensile and compressive forces, and compared to a pure plastic guide ring, it is less prone to deformation during long-term use.

[0036] The main component 1 is divided into an upper component 3 and a lower component 4. The lower component 4 has a guide hole 5, the upper edge of which connects to the upper component 3. The upper component 3 has a circular hole 6, and the edge of the circular hole 6 has a raised edge 7. This raised edge 7 design increases the material thickness in this area. In metallic materials, increased thickness directly leads to improved structural strength. This design effectively enhances the guide ring's resistance to deformation in this area, enabling it to withstand greater external impacts without easily being damaged.

[0037] The lower edge of the circular hole 6 extends towards the guide hole 5 to form an extension piece 8. The outer component 2 is made of plastic and wraps around the front side of the upper component 3. It also wraps around the rear side of the extension piece 8 and the outer periphery of the circular hole 6, and encloses the outer periphery of the upper component 3 and the lower component 4. Plastic materials have good wear resistance. During seatbelt use, the seatbelt webbing and the outer surface of the guide ring will frequently come into contact and rub against each other; the plastic outer component 2 can withstand this frictional force. Furthermore, although the metal main body 1 has high strength, the metal material is susceptible to corrosion. The outer component 2 is made of plastic, which has good corrosion resistance. By wrapping the metal main body 1 with the plastic outer component 2, contact between the metal main body 1 and external corrosive substances can be effectively isolated. For example, liquids such as cleaning agents may splash onto the guide ring inside the car; the plastic outer component 2 can prevent these liquids from contacting the metal main body 1, preventing rust and thus improving the overall corrosion resistance of the guide ring.

[0038] Example 2, as Figures 1 to 5 As shown, the extension piece 8 has an inverted trapezoidal structure, and the outer component 2 located at the extension piece 8 has an overall trapezoidal structure. A groove 9 is formed on the front side of the outer component 2 located at the extension piece 8, and multiple reinforcing pieces 10 are regularly arranged within the groove 9. The inverted trapezoidal structure of the extension piece 8 effectively disperses stress and enhances structural strength. Simultaneously, the groove 9 and reinforcing pieces 10 on the front side of the outer component 2 further enhance the strength of this area without adding excessive material, achieving weight reduction while maintaining structural strength.

[0039] The outer periphery of the circular hole 6 protrudes forward to form a convex region 11. The upper component 3 has a rounded-top triangular structure, and the edge of the convex region 11 smoothly transitions to the upper component 3. The convex region 11 at the location of the circular hole 6 is planar. The smooth transition design of the convex region 11 can effectively disperse stress and avoid stress concentration, thereby enhancing the structural strength of this region.

[0040] The outer component 2 located on the front side of the circular hole 6 is provided with a protruding ring 12, which encloses the inner wall of the circular hole 6. The thickness of the outer component 2 located on the inner wall of the circular hole 6 in the axial direction of the ring is greater than the thickness of the outer component 2 located on the protruding ring 12 in the axial direction of the ring. The design of the protruding ring 12 can increase the structural strength of the edge of the circular hole 6. The outer component 2 encloses the inner wall of the circular hole 6, and the outer component 2 at the inner wall is thicker. This design can enhance the structural strength and stability of the area of ​​the circular hole 6.

[0041] The outer component 2 has a first reinforcing member 13 and a second reinforcing member 14 on its left and right sides outside the convex ring 12, respectively. Both the first reinforcing member 13 and the second reinforcing member 14 include an irregular outer frame, and a number of reinforcing ribs are arranged inside the outer frame. The irregular outer frame and reinforcing rib design of the first reinforcing member 13 and the second reinforcing member 14 can effectively enhance the overall structural strength of the outer component 2, especially in areas with high stress.

[0042] The first reinforcing member 13 and the second reinforcing member 14 are located above the guide hole 5, and their structures are different. These different structural designs can provide targeted reinforcement according to different stress conditions, ensuring that the area above the guide hole 5 maintains good strength and stability under forces of different directions and types. This design can also be adjusted according to specific usage scenarios and needs, increasing the product's flexibility and adaptability.

[0043] The guide hole 5 has U-shaped side flanges 16 on both sides. The outer component 2 partially fills the side flanges 16, covering the outer end face of the side flanges 16. During vehicle operation, the seat belt may be subjected to forces from different directions. The presence of the side flanges 16 can effectively disperse and withstand lateral tension, preventing the guide ring from deforming or being damaged under lateral force, thereby ensuring that the seat belt can stably pass through the guide ring under various working conditions and play its role in restraining and protecting the occupant.

[0044] The outer component 2 includes a reinforcing ring 17 disposed on the outer circumferential surface of the main body 1. The reinforcing ring 17 has a sheet-like structure and a planar structure. The design of the reinforcing ring 17 can effectively enhance the overall structural strength of the outer component 2, especially on the outer circumferential surface of the main body 1. This design can prevent the outer component 2 from deforming or being damaged during long-term use. The planar structure of the reinforcing ring 17 can evenly distribute the force, avoid local stress concentration, and further improve the stability and reliability of the structure. In addition, the sheet-like planar structure of the reinforcing ring 17 of the outer component 2, which fits tightly against the outer circumferential surface of the main body 1, can effectively limit the rotation angle of the guide ring after installation, enhancing the stability of use. At the same time, its flat outer surface can block external views, preventing direct visibility of the vehicle's sheet metal, improving aesthetics and protecting interior privacy.

[0045] Below the guide hole 5, a U-shaped lower flange 18 is provided. The center of the lower flange 18 is offset from the plane where the circular hole 6 is located. The lower flange 18 includes a front flange 19 and a rear flange 20. The rear flange 20 extends downward into an inverted trapezoidal sheet-like structure. The area of ​​the front flange 19 is smaller than that of the rear flange 20. This design can increase the structural strength and stability of the bottom of the guide ring. In particular, the inverted trapezoidal sheet-like structure extending from the rear flange 20 can effectively disperse and absorb forces from different directions, improve the deformation resistance of the guide ring, and extend its service life.

[0046] The lowered edge 18 is located on the rear side of the front side of the extension piece 8. The lowered edge 18 serves as a guide surface for the seatbelt; in actual use, the seatbelt changes direction along the lowered edge 18. The design of the lowered edge 18 being located on the rear side of the front side of the extension piece 8 brings the seatbelt and lowered edge closer to the person, making it more space-efficient and minimizing its impact on interior space utilization.

[0047] The outer component 2 partially fills the lower flange 18, covering the outer end face of the lower flange 18. The reinforcing ring 17 is located in the middle of the lower flange 18, dividing the outer component 2 within the lower flange 18 into two parts: a matching front flange 19 and a matching rear flange 20. This division of the outer component 2 by the reinforcing ring 17 enhances the structural stability of the lower flange 18 area and prevents deformation due to long-term use. The outer component 2 filling and covering the lower flange 18 effectively reduces the contact between the metal main body 1 and the external environment, improving wear resistance and corrosion resistance.

[0048] The rest of the contents of Example 2 are the same as those of Example 1.

[0049] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The descriptions of the embodiments above are only for the purpose of helping to understand the present application and its core ideas. It should be noted that those skilled in the art can make several improvements and modifications to the present application without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A car seatbelt guide ring, characterized in that, The system includes a main body (1) and an outer part (2). The main body (1) is a metal material and is a ring-shaped structure. The main body (1) is divided into an upper part (3) and a lower part (4). The lower part (4) has a guide hole (5). The upper edge of the guide hole (5) is connected to the upper part (3). The upper part (3) has a round hole (6). The edge of the round hole (6) has a raised edge (7). The lower edge of the round hole (6) extends towards the guide hole (5) to form an extension piece (8). The outer part (2) is made of plastic. The outer part (2) wraps the front side of the upper part (3). The outer part (2) wraps the rear side of the extension piece (8) and the outer periphery of the round hole (6). The outer part (2) wraps the outer periphery of the upper part (3) and the lower part (4).

2. The automotive seatbelt guide ring according to claim 1, characterized in that, The extension piece (8) has an inverted trapezoidal structure, and the outer component (2) located at the extension piece (8) has an overall trapezoidal structure. The front side of the outer component (2) located at the extension piece (8) has a groove (9), and multiple reinforcing pieces (10) are regularly arranged in the groove (9).

3. The automotive seatbelt guide ring according to claim 1, characterized in that, The outer periphery of the circular hole (6) protrudes forward to form an outward convex area (11). The upper component (3) has a triangular structure with a smooth top. The outward convex area (11) has a triangular structure with a smooth top. The edge of the outward convex area (11) smoothly transitions to the upper component (3). The outward convex area (11) where the circular hole (6) is located is a plane.

4. A car seatbelt guide ring according to claim 1, characterized in that, The outer part (2) located on the front side of the circular hole (6) is provided with a convex ring (12), and the outer part (2) wraps the inner wall of the circular hole (6); the thickness of the outer part (2) located on the inner wall of the circular hole (6) in the axial direction of the ring is greater than the thickness of the outer part (2) located on the convex ring (12) in the axial direction of the ring.

5. A car seatbelt guide ring according to claim 4, characterized in that, The outer component (2) is provided with a first reinforcing member (13) and a second reinforcing member (14) on the left and right sides outside the convex ring (12), respectively. The first reinforcing member (13) and the second reinforcing member (14) each include an irregular outer frame, and a number of reinforcing ribs are arranged inside the outer frame.

6. A car seatbelt guide ring according to claim 5, characterized in that, The first reinforcing member (13) and the second reinforcing member (14) are located above the guide hole (5), and the structures of the first reinforcing member (13) and the second reinforcing member (14) are different.

7. A car seatbelt guide ring according to claim 1, characterized in that, The guide hole (5) is provided with U-shaped side flanges (16) on the left and right sides. The outer component (2) is partially filled in the side flanges (16) and the outer component (2) covers the outer end face of the side flanges (16).

8. A car seatbelt guide ring according to claim 1, characterized in that, The outer component (2) includes a reinforcing ring (17) disposed on the outer periphery of the main body (1). The reinforcing ring (17) has a sheet-like structure and a planar structure.

9. A car seatbelt guide ring according to claim 8, characterized in that, Below the guide hole (5) is a U-shaped lower flange (18). The center of the lower flange (18) is offset from the plane where the circular hole (6) is located. The lower flange (18) includes a front flange (19) and a rear flange (20). The rear flange (20) extends downward into an inverted trapezoidal sheet structure. The area of ​​the front flange (19) is smaller than that of the rear flange (20). The lower flange (18) is located on the rear side of the front side of the extension piece (8).

10. A car seatbelt guide ring according to claim 9, characterized in that, The outer component (2) is partially filled inside the lower flange (18), and the outer component (2) covers the outer end face of the lower flange (18); the reinforcing ring (17) is located in the middle of the lower flange (18), and the reinforcing ring (17) divides the outer component (2) filled inside the lower flange (18) into two parts: a matching front flange (19) and a matching rear flange (20).

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