Groove-shaped bending member and vehicle seat bottom frame

Abstract

The utility model discloses a kind of channel type bending piece and vehicle seat bottom frame, including center batten, width is uniform;Side edge, the two sides of center batten are integrally connected with side edge perpendicularly, the width of side edge is unidirectionally varied;Internal corner groove, located the same end of center batten and side edge;Rectangular groove, located the non-end position of center batten and side edge;Wherein, when center batten and side edge plane are unfolded, internal corner groove corresponds to rectangular gap, rectangular groove corresponds to rectangular hollow hole. Adopt this utility model by center batten and side edge integrated bending forming, structure lightweight and easy to process, its internal corner groove and rectangular groove can realize accurate positioning when assembling.

Description

Technical Field

[0001] This utility model relates to the field of vehicle metal parts, specifically to a groove-shaped bent part and a vehicle seat base frame. Background Technology

[0002] The metal frame of the vehicle seat base is the core component that supports the main body of the seat and ensures its strength. It is usually made of welded metal tubing, and in the existing technology, the frame is mostly made of square tubing.

[0003] In actual welding and assembly processes, the connection between square tubes requires positioning using tooling fixtures. This not only involves cumbersome procedures but also easily leads to insufficient overall precision of the welded frame due to positioning deviations. Furthermore, simple butt welding of square tubes only involves contact surfaces on the tube ends or sidewalls, limiting the structural strength of the connection point. Prolonged exposure to seat loads can result in loosening and deformation at the weld joint, affecting the seat's lifespan and safety. Therefore, the industry is seeking simpler, lighter, and more robust metal frame structure designs for vehicle seat bases. Utility Model Content

[0004] The problem to be solved by this utility model is to provide a groove-shaped bending component and a vehicle seat base frame.

[0005] To solve the above problems, on the one hand, this utility model provides a grooved bending part. To achieve the above objectives, the technical solution adopted by this utility model to solve its technical problems is as follows: A grooved bending component includes: a center strip with a uniform width; side strips, each side of the center strip being integrally and vertically connected to the other side strip, the width of the side strips gradually changing in one direction; an inside corner groove located at the same end of the center strip and the side strips; and a rectangular groove located at the non-end positions of the center strip and the side strips; wherein, when the center strip and the side strips are unfolded in plane, the inside corner groove corresponds to a rectangular notch, and the rectangular groove corresponds to a rectangular hollow hole.

[0006] As a further improvement of this utility model, the width of the side strip where the rectangular groove is located is greater than the width of the side strip where the inside corner groove is located; when the central strip and the side strip are unfolded, the width of the rectangular groove is less than the width corresponding to the rectangular hollow hole.

[0007] As a further improvement of this utility model, when the central strip and the side strip are unfolded in plane, the bottom of the rectangular groove has a widened portion.

[0008] As a further improvement of this utility model, the side strip has several through holes arranged in a single straight line.

[0009] As a further improvement of this utility model, each through hole is marked with an independent identifier.

[0010] As a further improvement of this utility model, the junction between the central strip and the side strip is rounded.

[0011] As a further improvement of this utility model, when the central strip and the side strip are unfolded in plane, the width of the rectangular groove and the width of the rectangular hollow hole are both greater than the width of the central strip, and the centroids of the rectangular groove and the rectangular hollow hole are both located on the mirror symmetry line of the central strip.

[0012] On the other hand, a vehicle seat base frame includes the aforementioned grooved bent component.

[0013] As a further improvement of this utility model, it includes vertically fixed longitudinal beams and transverse beams, and the internal corner groove and rectangular groove are each assembled with a transverse beam.

[0014] The beneficial technical effects of using the grooved bending part of this application are: This grooved bending component is integrally formed by the central strip and the two side strips. When unfolded, the internal corner groove and the rectangular groove correspond to the rectangular notch and the rectangular hollow hole, respectively. Compared with traditional square tube components, it is easier to bend and form by processing flat plates, which simplifies the processing process and eliminates the need to rely on complex tooling to achieve the preparation of key structures.

[0015] The internal corner groove and rectangular groove are respectively set at the end and non-end positions of the component. During assembly, they can provide a clear positioning reference for the mating parts, avoiding the problem of deviation that still easily occurs when traditional square tube mating relies on tooling positioning. This can improve the subsequent assembly accuracy and lay the foundation for ensuring connection stability.

[0016] The channel structure itself reduces the amount of material used on one side compared to a complete square tube. While ensuring the strength of the basic structure, it can effectively reduce the weight of the components, which meets the lightweight design requirements of the vehicle seat bottom frame and helps to reduce the energy consumption of the whole vehicle.

[0017] The grooved bending component of this application is suitable as part of the vehicle seat base frame. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a plan view of one embodiment of the groove-shaped bending part of this utility model; Figure 2This is a perspective view of one embodiment of the groove-shaped bending part of this utility model; Figure 3 This is a front view of one embodiment of the grooved bending part of this utility model; Figure 4 This is a perspective view of one embodiment of the groove-shaped bending part of this utility model; Figure 5 This is a perspective view of one embodiment of the vehicle seat base frame of this utility model; Figure 6 This is a perspective view of one embodiment of the vehicle seat base frame of this utility model.

[0020] 1-Longitudinal beam; 2-Crossbeam; 21-Rectangular notch; 22-Wide section; 23-Waist edge; 24-Corner groove; 25-Rectangular groove; 26-Side strip; 27-Center strip; 28-Through hole; 29-Rectangular hollow hole. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to specific embodiments: To achieve the purpose of this utility model, a groove-shaped bending component includes: a central strip 27 with uniform width; side strips 26 integrally and vertically connected to both sides of the central strip 27, the width of the side strips 26 gradually changing in one direction, i.e., the width of the side strips 26 is not uniform; an inside corner groove 24 located at the same end of the central strip 27 and the side strips 26; and a rectangular groove 25 located at the non-end positions of the central strip 27 and the side strips 26. When the central strip 27 and the side strips 26 are unfolded in plane, the inside corner groove 24 corresponds to a rectangular notch 21, and the rectangular groove 25 corresponds to a rectangular hollow hole 29.

[0022] The inner corner groove 24 refers to a recessed notch formed by two perpendicular sides, while the rectangular groove 25 refers to a recessed notch formed by three consecutive perpendicular sides. The inner corner groove 24 has a relatively poorer containment than the rectangular groove 25.

[0023] The cross-sectional profile of the grooved bending part is U-shaped.

[0024] The beneficial effects of adopting the above technical solution are as follows: First, the channel-shaped bent part is a U-shaped bent part, which uses less material and is lighter than a complete square tube. Second, the channel-shaped bent part is easy to bend from a flat sheet. Third, by arranging rectangular notches 21 and rectangular hollow holes 29 on the flat sheet, and then bending it, rectangular notches 21 and rectangular grooves 25 are formed, which are perfectly positioned and welded to other parts. The snap-fit ​​and positioning effect is good, and it is also easy to form a boundary line that can be welded. The channel-shaped bent part of this application is suitable as part of the vehicle seat base frame.

[0025] In some other embodiments of this utility model, the width of the side strip 26 where the rectangular groove 25 is located is greater than the width of the side strip 26 where the internal corner groove 24 is located. When the central strip 27 and the side strip 26 are unfolded, the width of the rectangular groove 25 is less than the width corresponding to the rectangular hollow hole 29.

[0026] The beneficial effects of adopting the above technical solution are: by setting the width of the side strip 26 where the rectangular groove 25 is located to be greater than the width of the side strip 26 where the inside corner groove 24 is located, and making the width of the rectangular groove 25 smaller than the corresponding width of the rectangular hollow hole 29 when unfolded in the plane, the local structural strength of the component is enhanced, the stress distribution is optimized, and the groove size is ensured to be accurate after bending, thereby improving the assembly fit with the docking parts and the rigidity of the overall frame.

[0027] In some other embodiments of this utility model, when the central strip 27 and the side strip 26 are unfolded in plane, the bottom of the rectangular groove 25 has a widened portion 22.

[0028] like Figure 1 As shown, the outline of the widened part 22 is a semi-circular arc.

[0029] The overall shape of the grooved bending part under planar unfolding is similar to an isosceles trapezoid. The two legs of the isosceles trapezoid are the edge 23.

[0030] The beneficial effects of adopting the above technical solution are: when the rectangular groove 25 is unfolded in the plane, the bottom of the groove 25 is provided with a widening part 22, which increases the material accommodating space in the groove area, facilitates the avoidance of stress concentration during bending processing, and at the same time increases the contact area between the rectangular groove 25 and parts such as the crossbeam 2, thereby enhancing the welding firmness and load-bearing capacity.

[0031] like Figure 2 As shown, in some other embodiments of this utility model, the side strip 26 has a plurality of through holes 28 arranged in a single straight line.

[0032] The beneficial effects of adopting the above technical solution are: the through hole 28 reduces the weight of the component and provides additional installation or connection points, which facilitates fixing with other components such as wiring harnesses or accessories, thereby improving the functionality and integration of the seat base frame.

[0033] like Figure 3 , Figure 4 As shown, in some other embodiments of this invention, each through hole 28 is marked with a unique identifier. The identifier can be a different number.

[0034] The advantages of adopting the above technical solution are: it facilitates rapid identification and positioning during production and assembly, and reduces the risk of incorrect installation.

[0035] In some other embodiments of this utility model, the junction between the central strip 27 and the side strip 26 is rounded.

[0036] The beneficial effects of adopting the above technical solution are: effectively reducing stress concentration during bending, preventing crack formation, and extending the service life of components.

[0037] In some other embodiments of this utility model, when the central strip 27 and the side strip 26 are unfolded in plane, the width of the rectangular groove 25 and the width of the rectangular hollow hole 29 are both greater than the width of the central strip 27, and the centroids of the rectangular groove 25 and the rectangular hollow hole 29 are both located on the mirror symmetry line of the central strip 27.

[0038] The beneficial effects of adopting the above technical solution are: improving the balance of components and assembly accuracy, enabling uniform load transfer, and enhancing the overall structural stability.

[0039] like Figure 5 , Figure 6 As shown, a vehicle seat base frame includes the aforementioned grooved bent component.

[0040] In some other embodiments of this utility model, it includes a vertically fixed longitudinal beam 1 and a transverse beam 2, with a corner groove 24 and a rectangular groove 25 each assembled with a transverse beam 2. The edges of the corner groove 24 and the rectangular groove 25 are welded and fixed to the transverse beam 2.

[0041] Both longitudinal beam 1 and transverse beam 2 are square tubes. The two longitudinal beams 1 are arranged parallel to each other, and the two transverse beams 2 are arranged parallel to each other. A channel-shaped bent component is arranged between the two longitudinal beams 1. The rectangular channel 25 can be fixed in contact with two sides of the square tube, and the rectangular channel 25 can be fixed in contact with three sides of the square tube.

[0042] The beneficial effects of adopting the above technical solution are: by utilizing the multi-faceted contact between the slot and the crossbeam 2, the rigidity of the welding points and connections is enhanced, ensuring that the seat base frame maintains its shape and performance under long-term load.

[0043] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They should not be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A channel-shaped bent member characterized by comprising: include: The central slat has a uniform width. Side strips are integrally and vertically connected to both sides of the central strip, and the width of the side strips gradually changes in one direction. The internal corner groove is located at the same end of the center strip and the side strip; A rectangular groove is located at the non-end positions of the center strip and the side strips; When the central strip and the side strip are unfolded, the inside corner groove corresponds to a rectangular notch, and the rectangular groove corresponds to a rectangular hollow hole.

2. The grooved bending part according to claim 1, characterized in that: The width of the side strip containing the rectangular groove is greater than the width of the side strip containing the inside corner groove; When the central strip and the side strips are unfolded, the width of the rectangular groove is smaller than the width of the rectangular cutout.

3. The grooved bending member according to claim 1, characterized in that: When the central slat and the side slats are unfolded, the bottom of the rectangular groove has a widened portion.

4. The channel-shaped bent member according to claim 1, characterized by: The side strip has several through holes arranged in a single straight line.

5. The channel-shaped bent member according to claim 1, characterized by: Each through hole is marked with a unique identifier.

6. The grooved bending member according to claim 1, characterized in that: The junction between the center strip and the side strip is rounded.

7. The grooved bending member according to claim 1, characterized in that: When the central slat and the side slats are unfolded, the width of the rectangular groove and the width of the rectangular cutout are both greater than the width of the central slat, and the centroids of the rectangular groove and the rectangular cutout are both located on the mirror symmetry line of the central slat.

8. A vehicle seat base frame, characterized in that: Includes the grooved bending member according to any one of claims 1 to 7.

9. The vehicle seat base frame according to claim 8, characterized in that: It includes vertically fixed longitudinal beams and transverse beams, and the internal corner groove and rectangular groove are each assembled with a transverse beam.

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