Automobile safety belt height adjusting device

Abstract

The invention mainly aims at providing a height adjusting device for an automobile safety belt to solve the technical problems that in the prior art, a height adjuster is complex in installation structure, large in part number and high in cost, and the weight of an automobile body is increased. In order to achieve the purpose, the automobile safety belt height adjusting device comprises an automobile body metal plate, a guide rail and a sliding block component. The guide rail is fixedly connected to the back face of the vehicle body metal plate, and a mounting sliding groove communicating with the front face and the back face of the vehicle body metal plate is formed in the vehicle body metal plate. The sliding block component is movably arranged on the front face of the automobile body metal plate, and a part of the sliding block component penetrates through the installation sliding groove to be in sliding fit connection with the guide rail located on the back face of the automobile body metal plate. The guide rail is directly and fixedly arranged on the back face of the automobile body metal plate through a welding process, and the guide rail and the back face of the automobile body metal plate form a rigid connection whole so as to form the reinforcing structure of the automobile body metal plate.

Description

Technical Field

[0001] This invention relates to a height adjustment device, specifically to a car seat belt height adjustment device. Background Technology

[0002] Seat belts are an important component of a car's passive safety system, used to restrain occupants in their seats during a collision or emergency braking. To accommodate occupants of different sizes and improve wearing comfort and safety, modern cars typically have seat belt height adjusters located on the B-pillar, allowing occupants to adjust the position of the seat belt guide rings.

[0003] Existing automotive seatbelt height adjusters, such as traditional products manufactured by supplier Autoliv, are typically stand-alone components. In traditional vehicle manufacturing processes, these height adjusters are bolted to the body panels. To ensure the strength of the mounting point and meet regulatory requirements for the tensile strength of the seatbelt anchor points, not only are welded nuts pre-installed inside the body panels to accommodate the mounting bolts, but an additional reinforcing plate is usually welded in to enhance local strength.

[0004] This traditional installation structure and application method has significant drawbacks. First, the structure requires welded nuts and welded reinforcing plates, which not only increases the material cost of the parts themselves but also adds complexity to welding and management. Second, the additional reinforcing plates and bolted connections directly increase the vehicle's curb weight, hindering cost reduction and lightweighting efforts. Furthermore, bolt tightening is required during production line installation, and the welding of reinforcing plates and nuts must be completed beforehand during the body welding stage, extending the production line's installation time.

[0005] Therefore, how to simplify the installation structure of the height adjuster, save welding nuts and reinforcing plates, and thus reduce production costs and weight while ensuring connection strength and safety is a technical problem that urgently needs to be solved in the automotive parts industry. Summary of the Invention

[0006] The main objective of this invention is to provide a car seat belt height adjustment device to solve the technical problems of complex installation structure, large number of parts, high cost, and increased vehicle weight of existing height adjusters.

[0007] To achieve the above objectives, the present invention provides a car seat belt height adjustment device, including a car body sheet, a guide rail, and a slider component; the guide rail is fixedly connected to the back of the car body sheet, and the car body sheet has a mounting groove connecting its front and back sides; the slider component is movably disposed on the front of the car body sheet, and a portion of the slider component passes through the mounting groove and forms a sliding engagement connection with the guide rail located on the back of the car body sheet.

[0008] Furthermore, the guide rail is directly fixed to the back of the body sheet metal through a welding process, and the guide rail and the back of the body sheet metal form a rigid connection to constitute a reinforcing structure of the body sheet metal.

[0009] Furthermore, the guide rail is formed by bending a metal sheet, and its cross-section has a C-shaped structure. Both ends of the guide rail extend to form welding bosses for welding with the body sheet metal.

[0010] Furthermore, the mounting groove includes a through-hole groove extending along the height direction and a recessed receiving area communicating with the upper end of the through-hole groove; the recessed receiving area is recessed from the front to the back of the body sheet metal, and its width is greater than the width of the through-hole groove.

[0011] Furthermore, the recessed receiving area is configured as an entrance for the slider component to be inserted into the guide rail from the front of the body sheet metal, and the recessed receiving area is configured as a limiting space when the slider component is adjusted to the highest position.

[0012] Furthermore, the C-shaped structure of the guide rail has two opposing sidewalls, and a plurality of locking holes are spaced apart along the length direction on the sidewalls, the plurality of locking holes defining a plurality of adjustment positions of the height adjustment device.

[0013] Furthermore, the slider component includes a body, an elastic element, and a locking member movably disposed on the body; the locking member is configured to extend through the mounting groove into the guide rail and engage with the locking hole on the side wall of the guide rail.

[0014] Furthermore, the slider component also includes an operation button, which is linked to the locking member; the operation button is configured to overcome the resistance of the elastic element and drive the locking member to disengage from the locking hole when subjected to external force, thereby releasing the locking state between the slider component and the guide rail.

[0015] Furthermore, the locking member includes a pair of symmetrically arranged locking claws, and the main body has shaft posts on both sides. The pair of locking claws are rotatably mounted on the shaft posts, and the pair of locking claws are configured to open outward to insert into the locking holes on both sides of the guide rail.

[0016] Furthermore, the body sheet metal is the inner panel of the B-pillar of the body, and the guide rail is welded to the side of the inner panel of the B-pillar of the body facing the body cavity.

[0017] The present invention has the following beneficial effects: 1. Simplified installation structure, reduced cost and weight: This invention breaks away from the traditional bolt-mounted method for height adjusters, proposing a completely new application method where the guide rail is directly welded into the vehicle body. This structure directly saves one welding nut and one welding reinforcing plate, effectively reducing the number of parts, thereby lowering production costs and overall vehicle weight.

[0018] 2. Integrated structure, improved body strength: The guide rail of this invention is directly welded to the body sheet metal. The guide rail itself adopts a C-shaped structure made of high-strength steel plate, which can serve as a reinforcing rib distributed around the rail, directly helping to strengthen the rigidity of the body sheet metal, overcoming the difficulty of insufficient strength of the B-pillar, and realizing the integration of functional components and structural components.

[0019] 3. Optimized process and shortened working time: With the structure of this invention, the guide rail only needs to be pre-welded to the inside of the vehicle body, and the slider component only needs to be inserted from the front to complete the assembly. This "internal welding and external assembly" method simplifies the installation process, avoids the cumbersome bolt tightening process, and thus shortens the installation time of the production line. Attached Figure Description

[0020] Figure 1 This is an overall effect diagram of the present invention; Figure 2 This is a diagram of the core components of the present invention; Figure 3 This is a schematic diagram of the car body sheet metal. Figure 4 This is a schematic diagram of the guide rail; Figure 5 This is a schematic diagram of the slider component.

[0021] Figure Labels

[0022] Body panel repair - 1; Upper concave area -11; A square slot with a through hole - 12; Guide rail-2; Two-end boss-21; Boss-22; Through hole-23; Slider component -3; Slider block -31; Locking claw-32; Button -33; Spring-34; Bracket-35. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the invention.

[0024] Example

[0025] like Figures 1 to 5 As shown, the present invention provides a car seat belt height adjustment device, including a car body sheet 1, a guide rail 2, and a slider component 3. The guide rail 2 is fixedly connected to the back of the car body sheet 1, and the car body sheet 1 has a mounting groove (composed of a square groove 12 with a through hole) connecting its front and back sides; the slider component 3 is movably disposed on the front of the car body sheet 1, and a portion of the slider component 3 passes through the mounting groove and forms a sliding engagement connection with the guide rail 2 located on the back of the car body sheet 1.

[0026] Furthermore, the guide rail 2 is directly and fixedly connected to the back of the body sheet metal 1 by welding. The guide rail 2 is designed with a welding plane that fits against the back of the body sheet metal 1, so that the guide rail 2 constitutes a reinforcing structure of the body sheet metal 1, thereby enhancing the rigidity and strength of the body sheet metal 1.

[0027] Furthermore, the guide rail 2 is formed by bending high-strength steel plate, and its cross-section is C-shaped; the two ends of the guide rail 2 are provided with two end bosses 21 and 22 for welding and fixing to the body sheet metal 1.

[0028] Furthermore, the mounting groove includes a square groove 12 with a through hole extending vertically and an upper recessed region 11 located above the square groove 12 with the through hole. The upper recessed region 11 is configured as an entrance for the slider component 3 to be inserted and installed, and as a stopping space for the slider component 3 when it slides to its highest position; the square groove 12 with the through hole facilitates the vertical movement of the slider component 3.

[0029] Furthermore, a plurality of through holes 23 are symmetrically provided on the opposite side walls of the C-shaped structure of the guide rail 2. The plurality of through holes 23 are arranged at intervals along the length of the guide rail 2 to limit the dwell time of the slider component 3 at different positions, so as to achieve the purpose of height adjustment.

[0030] Furthermore, the slider component 3 includes a sliding block 31, a locking claw 32, a button 33, and a spring 34. The sliding block 31 has a cylindrical shaft, and the locking claw 32 is mounted on the cylindrical shaft and can rotate around it. The button 33 is guided by a bracket 35 and is linked to the locking claw 32, used to drive the locking claw 32 to open or close under the force of the spring 34.

[0031] Furthermore, when the locking claw 32 opens, it can enter the through hole 23 in the side wall of the guide rail 2, thereby blocking the movement of the slider component 3 to achieve locking.

[0032] I. Detailed Structural Description

[0033] 1. Body Sheet Metal 1 Body sheet metal 1 is part of the automobile body structure, specifically the B-pillar inner panel in this embodiment. For example... Figure 3 As shown, the mounting groove structure on the body sheet metal 1 specifically includes two features: Upper recessed area 11: Located on the upper part of the body sheet metal 1, this area is recessed towards the back of the body sheet metal 1, forming an enlarged space. This upper recessed area 11 is mainly used for the initial insertion and installation of the slider component 3, and also serves as the dwell space when the slider component 3 is adjusted to the highest position.

[0034] A square slot 12 with a through hole: formed on the body sheet metal 1, connecting the front (facing the inside of the vehicle) and the back (facing the cavity side of the vehicle body) of the body sheet metal 1. The square slot 12 extends vertically and is used for a part of the slider component 3 to pass through and move up and down.

[0035] 2. Guide rail 2, as shown Figure 4 As shown, the guide rail 2 is a C-shaped structure formed by bending high-strength steel plate. Unlike existing technologies, the guide rail 2 is not installed by bolts, but is directly fixed to the back of the body sheet metal 1 (i.e., inside the body cavity).

[0036] Welding Fixing: The guide rail 2 is designed with a welding surface and is directly fixed to the back of the body sheet metal 1 through welding. This connection method allows the guide rail 2 to not only serve as the track for the slider, but also as a reinforcing rib of the body sheet metal 1, which helps to enhance the rigidity and strength of the body sheet metal 1, thus eliminating the need for traditional reinforcing lining plates and welding nuts.

[0037] Boss structure: The guide rail 2 is provided with two bosses 21 and 22. These boss structures are used to ensure the positioning and contact strength when the guide rail 2 is welded to the body sheet metal 1.

[0038] Locking structure: Several through holes 23 are symmetrically opened on both sides of the C-shaped structure of the guide rail 2. These through holes 23 are arranged at intervals along the length of the guide rail 2 to cooperate with the locking of the slider component 3.

[0039] 3. Slider component 3, as shown Figure 5 As shown, the slider component 3 is a height adjustment actuator, which is movably mounted on the front of the body sheet metal 1. The slider component 3 mainly includes a sliding block 31, a locking claw 32, a button 33, a spring 34, and a bracket 35.

[0040] Sliding fit: The main body of the sliding block 31 passes through a square groove 12 through a hole on the body sheet metal 1 and extends into the C-shaped groove of the guide rail 2 on the back, thereby forming a sliding fit with the guide rail 2.

[0041] Locking mechanism: The sliding block 31 has symmetrical columnar shafts on both sides, and the locking claws 32 are mounted on the columnar shafts and can rotate around the shafts at a certain angle. The button 33 is guided and mounted through the bracket 35, and can move up and down relative to the sliding block 31 under the force of the spring 34. The button 33 is linked to the locking claws 32. When the button 33 moves, it drives the locking claws 32 to open or close.

[0042] II. Assembly Process

[0043] The installation process of this invention adopts a novel "internal welding and external mounting" method, and the specific steps are as follows: Pre-welding: First, place the guide rail 2 on the back of the body sheet metal 1, and then weld the guide rail 2 directly to the body sheet metal 1 using the welding positions provided by the two end bosses 21 and 22. At this point, the guide rail 2 and the body sheet metal 1 form a rigid whole, and the guide rail 2 acts as a reinforcing plate.

[0044] Insertion and installation: During the final assembly of the vehicle, the slider component 3 is inserted from the front (inside) of the body sheet metal 1, aligned with the upper recessed area 11. Due to the large space in the upper recessed area 11, the slider component 3 can smoothly enter the groove of the guide rail 2, and then slide down along the square groove 12 with a through hole to the working position.

[0045] III. Working Principle

[0046] Locked State: In the natural state, spring 34 applies force to button 33, causing locking claw 32 to open via linkage mechanism. At this time, the opened locking claw 32 extends into through hole 23 on side wall of guide rail 2, thereby locking slider component 3 in the vertical direction, restricting its movement, and fixing the height of seat belt.

[0047] Adjustment Status: When the occupant needs to adjust the height, press button 33. Button 33 moves against the resistance of spring 34, causing locking claw 32 to close (retract inward). At this time, locking claw 32 disengages from the through hole 23 on guide rail 2, and slider component 3 is unlocked. The occupant can then move slider component 3 up and down along the square groove 12 of one of the through holes. When the appropriate height is reached, release button 33, and locking claw 32 reopens under the action of spring 34 and engages in the corresponding through hole 23, completing the locking.

[0048] The embodiments described above are merely further illustrations of the present invention and are not intended to limit the present invention in any other way. The present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding modifications and changes based on the present invention, but all such modifications and changes should fall within the protection scope of the present invention.

Claims

1. A car seatbelt height adjustment device, characterized in that, include: The vehicle body sheet metal, guide rail, and slider component; the guide rail is fixedly connected to the back of the vehicle body sheet metal, and the vehicle body sheet metal has a mounting groove connecting its front and back sides; the slider component is movably disposed on the front of the vehicle body sheet metal, and a portion of the slider component passes through the mounting groove and forms a sliding engagement connection with the guide rail located on the back of the vehicle body sheet metal.

2. The vehicle seatbelt height adjustment device according to claim 1, characterized in that, The guide rail is directly fixed to the back of the body sheet metal by welding process, and the guide rail and the back of the body sheet metal form a rigid connection to form a reinforced structure of the body sheet metal.

3. The vehicle seatbelt height adjustment device according to claim 2, characterized in that, The guide rail is formed by bending a metal sheet, and its cross-section is C-shaped. Both ends of the guide rail extend to form welding bosses for welding with the body sheet metal.

4. The vehicle seatbelt height adjustment device according to claim 1, characterized in that, The mounting groove includes a through-hole groove extending along the height direction and a recessed receiving area connected to the upper end of the through-hole groove; the recessed receiving area is recessed from the front to the back of the body sheet metal, and its width is greater than the width of the through-hole groove.

5. The vehicle seatbelt height adjustment device according to claim 4, characterized in that, The recessed receiving area is configured as an entrance for the slider component to be inserted into the guide rail from the front of the body sheet metal, and the recessed receiving area is configured as a limiting space when the slider component is adjusted to the highest position.

6. The vehicle seatbelt height adjustment device according to claim 3, characterized in that, The C-shaped structure of the guide rail has two opposing sidewalls, and multiple locking holes are spaced apart along the length of the sidewalls, which define multiple adjustment positions of the height adjustment device.

7. The vehicle seatbelt height adjustment device according to claim 6, characterized in that, The slider component includes a body, an elastic element, and a locking member movably disposed on the body; the locking member is configured to extend through the mounting groove into the guide rail and engage with the locking hole on the side wall of the guide rail.

8. The vehicle seatbelt height adjustment device according to claim 7, characterized in that, The slider component also includes an operation button, which is linked to the locking member. The operation button is configured to overcome the resistance of the elastic element and drive the locking member to disengage from the locking hole when subjected to external force, thereby releasing the locking state between the slider component and the guide rail.

9. The vehicle seatbelt height adjustment device according to claim 7, characterized in that, The locking component includes a pair of symmetrically arranged locking claws. The main body has shaft posts on both sides. The pair of locking claws are rotatably mounted on the shaft posts, and the pair of locking claws are configured to open outwards to insert into the locking holes on both sides of the guide rail.

10. A car, characterized in that, The device includes a B-pillar of the vehicle body and a seatbelt height adjustment device as described in any one of claims 1 to 9, wherein the body sheet metal is the inner panel of the B-pillar of the vehicle body, and the guide rail is welded to the side of the inner panel of the B-pillar of the vehicle body facing the vehicle body cavity.

Images