ABTS seat

Abstract

The utility model discloses an ABTS seat relates to the field of car. This ABTS seat includes backrest frame, and the backrest frame forms and has the accommodation area, and the backrest frame includes the upper horizontal pipe in the accommodation area top, and the first side plate in the left and right direction one side of the accommodation area, and the upper horizontal pipe includes the first pipe section that is opposite horizontal plane inclination, and one end of first pipe section is fixedly connected with the first side plate, and forms the female angle structure to the accommodation area and greater than 90 DEG, and the first side plate is formed with the opening structure to the accommodation area. The assembly difficulty of ABTS seat provided by the utility model is lower, and the mounting space of retractor is greater.

Description

Technical Field

[0001] This utility model relates to the automotive field, and more specifically, to an ABTS seat. Background Technology

[0002] Some vehicles on the market are equipped with ABTS seats, which have an enclosed backrest frame and seat belt retractors installed inside the enclosed structure.

[0003] The side panels of this type of backrest frame are formed by two profiles interlocking, meaning the side panel cross-section is a closed structure. This results in limited usable space in the lateral direction within the frame, affecting the installation of the retractor. Furthermore, the top of the side panels is assembled to the top beam of the frame via additional interlocking brackets, making assembly more difficult. Utility Model Content

[0004] The purpose of this invention is to provide an ABTS seat with a backrest frame that is easier to assemble and has more usable space in the left and right directions inside the backrest frame, which facilitates the installation of the retractor.

[0005] The embodiments of this utility model provide a technical solution: An ABTS seat includes a backrest frame forming an accommodating area. The backrest frame includes an upper horizontal tube at the top of the accommodating area and a first side plate on one side of the accommodating area in a left-right direction. The upper horizontal tube includes a first tube segment inclined relative to a horizontal plane. One end of the first tube segment is fixedly connected to the first side plate and forms an inside angle structure facing the accommodating area at an angle greater than 90°. The first side plate has an opening structure formed facing the accommodating area.

[0006] In an optional embodiment, the top of the first side plate is provided with an overlapping portion, the overlapping portion being integrally formed or fixedly connected to the first side plate, and one end of the first pipe segment overlapping the overlapping portion and being welded and fixed.

[0007] In an optional embodiment, the overlapping portion forms an upward-opening groove structure, and one end of the first pipe segment is at least partially embedded in the groove structure and welded and fixed to the groove structure.

[0008] In an optional embodiment, the first side panel includes a front panel wall, a rear panel wall, and a side panel wall. The front panel wall and the rear panel wall are opposite to each other in the front-rear direction and are spaced apart, and are connected by the side panel wall to form the opening structure.

[0009] In an optional embodiment, the top of the side panel wall is provided with a bottom overlapping wall, and the tops of the front panel wall and the rear panel wall protrude upward from the bottom overlapping wall, forming a groove structure together with the bottom overlapping wall. One end of the first pipe section is at least partially embedded in the groove structure and is welded and fixed to at least one of the bottom overlapping wall, the front plate wall and the rear plate wall.

[0010] In an optional embodiment, the bottom overlapping wall is formed by bending and extending the top end of the side panel wall; or, The bottom overlapping wall is fixedly connected to the side plate wall.

[0011] In an optional embodiment, the first pipe segment has a bottom overlapping surface extending to the pipe opening, the bottom overlapping surface being attached to and welded to the upper surface of the bottom overlapping wall.

[0012] In an optional embodiment, the front plate wall has a front lap edge welded to the front side surface of the first pipe segment, and the rear plate wall has a rear lap edge welded to the rear side surface of the upper horizontal pipe. The axis of the first pipe segment lies in the plane formed by the front overlap edge and the rear overlap edge.

[0013] In an optional embodiment, the width of the side panel wall gradually increases in at least a section extending downwards from the bottom overlapping wall; and / or, In at least a section of the area extending downwards from the bottom overlapping wall, the width dimension of the front panel wall and / or the rear panel wall gradually decreases in the left-right direction.

[0014] In an optional embodiment, the upper horizontal tube further includes a second tube segment, the angle between the first tube segment and the horizontal plane is greater than the angle between the second tube segment and the horizontal plane, and the end of the first tube segment away from the first side plate is connected to the end of the second tube segment, forming an inside corner structure facing the receiving area and greater than 90°.

[0015] In an optional embodiment, the front panel wall and / or the rear panel wall have recesses that are recessed in a direction away from the receiving area.

[0016] In an optional embodiment, the ABTS seat further includes a seatbelt exit bracket located at the connection point between the first tube segment and the first side panel, and connected to at least one of the first tube segment and the first side panel.

[0017] In an optional embodiment, the backrest frame further includes a second side plate, a first upper plate for adjusting the angle, a second upper plate for adjusting the angle, and a lower crossbeam. The first side plate, the upper crossbeam, the second side plate, the second upper plate for adjusting the angle, the lower crossbeam, and the first upper plate for adjusting the angle are connected end to end in sequence to form the accommodating area.

[0018] Compared to existing technologies, the ABTS seat provided by this invention features a backrest frame with its upper horizontal tube's first segment fixedly connected to the first side panel, eliminating the need for additional counter-bracing brackets and significantly reducing assembly difficulty. Furthermore, the first side panel has an opening structure facing the internal accommodating area of ​​the backrest frame, avoiding obstruction of the retractor installation and increasing the usable space within the backrest frame in the lateral direction. Therefore, the beneficial effects of the ABTS seat provided by this invention include: easier assembly and more space for retractor installation. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this utility model and therefore should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without any creative effort.

[0020] Figure 1 This is an exploded view of the backrest frame structure of a traditional chair. Figure 2 for Figure 1 Schematic diagram of the cross section of the middle side plate; Figure 3 A schematic diagram of the ABTS seat provided in the embodiment of this utility model in practical application; Figure 4 This is a structural diagram of the backrest frame from one perspective. Figure 5 This is a structural diagram of the backrest frame from another perspective. Figure 6 This is an exploded diagram of the backrest frame structure. Figure 7 This is a structural schematic diagram of the first side plate; Figure 8 for Figure 5 Sectional view of AA; Figure 9 for Figure 5 Sectional view of BB; Figure 10 for Figure 5 Sectional view of EE; Figure 11 for Figure 5 Sectional view of CC; Figure 12 for Figure 5 Sectional view of DD; Figure 13 This is a schematic diagram of the initial assembly of the upper horizontal tube and the first side plate; Figure 14This is a structural diagram of the upper horizontal tube and the first side plate before assembly. Figure 15 This is a structural diagram showing the completed assembly of the upper horizontal tube and the first side plate. Figure 16 This is a schematic diagram of the connection structure between the upper horizontal tube and the first side plate; Figure 17 for Figure 16 A cross-sectional view of GG; Figure 18 This is a schematic diagram of the connection structure between the first side plate and the upper horizontal tube in another embodiment; Figure 19 for Figure 18 A cross-sectional view of HH; Figure 20 This is a structural diagram of the overlapping section; Figure 21 This is a schematic diagram of the structure where the upper horizontal tube overlaps at the joint. Figure 22 This is a structural schematic diagram of a portion of the first side panel from one perspective. Figure 23 This is a structural schematic diagram of part of the first side panel from another perspective; Figure 24 This is a schematic diagram of the upper horizontal tube structure; Figure 25 A schematic diagram of the pipe opening structure at one end where the upper horizontal pipe connects to the first side plate; Figure 26 This is a schematic diagram of the connection between the upper horizontal tube and the first and second side plates. Figure 27 This is a structural diagram illustrating the assembly process of the upper horizontal tube with the first and second side plates.

[0021] Icons: 10-Vehicle seat; 11-Base; 12-Headrest; 13-Lower plate of first adjuster; 14-Lower plate of second adjuster; 100-ABTS seat; 110-Backrest frame; 111-Accommodation area; 112-Upper transverse tube; 1121-Bottom overlapping surface; 1122-First tube section; 1123-Second tube section; 1124-Third tube section; 1125-Fourth tube section; 1126-Guide sleeve; 113-First side plate; 1131-Opening structure; 1132-Groove structure; 1133-Front panel wall; 1134-Rear panel wall; 11 35-Side panel wall; 1136-Bottom overlap wall; 1137-Front overlap edge; 1138-Rear overlap edge; 1139-Recessed part; 114-Second side panel; 115-First angle adjuster upper plate; 116-Second angle adjuster upper plate; 117-Lower crossbeam; 118-Mounting bracket; 119-Stop bracket; 120-Retractor; 131-Front bracket; 132-Rear bracket; 141-Triangular rib; 20-Side panel; 21-First profile; 22-Second profile; 30-Clasping bracket; 31-First bracket; 32-Second bracket; 40-Upper crossbeam. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use, or the orientation or positional relationship that is commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0027] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, terms such as "set" and "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] The frame of a traditional chair back is like Figure 1 As shown, its side plate 20 is formed by the mutual clamping of the first profile 21 and the second profile 22, and the cross-section of the side plate 20 is... Figure 2 The closed structure shown. Figure 2 In the left and right directions indicated by the X arrow, the side plate 20 occupies a large space, resulting in less usable space inside the frame in the left and right directions, which hinders the installation of the retractor 120.

[0029] Furthermore, the side panels 20 of this type of frame need to be connected to the upper crossbeam 40 of the frame via additional mounting brackets 30. The mounting brackets 30 include a first bracket 31 and a second bracket 32. In actual assembly, the first bracket 31 needs to be welded to the upper crossbeam 40 first. After welding, the second bracket 32 ​​is then assembled to the first bracket 31 to form a clamping connection with the upper crossbeam 40. Finally, the upper crossbeam 40 is welded to the second bracket 32. The entire process is cumbersome, time-consuming, and labor-intensive. To address the aforementioned problems with traditional seats, embodiments of this application provide an ABTS seat 100, which features lower assembly difficulty and greater installation space for the retractor.

[0030] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0031] Example Please see Figure 3 , Figure 3 The diagram shown is a structural schematic of the ABTS seat 100 provided in this embodiment in practical application.

[0032] The ABTS seat 100 provided in this embodiment includes a backrest frame 110, a retractor 120, and a seatbelt exit bracket. Both the retractor 120 and the seatbelt exit bracket are mounted on the backrest frame 110, and the surface of the backrest frame 110 is covered with a leather covering. It is understood that the ABTS seat 100 also includes a base 11 at the bottom of the backrest frame 110 and a headrest 12 at the top of the backrest frame 110, etc., which will not be described further in this embodiment.

[0033] Please refer to the following: Figure 4 , Figure 5 and Figure 6 , Figure 4 The image shown is a structural schematic diagram of the backrest frame 110 from one perspective. Figure 5 The image shown is a structural schematic diagram of the backrest frame 110 from another perspective. Figure 6 The diagram shown is an exploded view of the backrest frame 110.

[0034] In this embodiment, the backrest frame 110 includes a first side plate 113, an upper horizontal tube 112, a second side plate 114, a first angle adjuster upper plate 115, a second angle adjuster upper plate 116, and a lower crossbeam 117. The first side plate 113 and the second side plate 114 are arranged opposite to each other and spaced apart in the left-right direction. The upper horizontal tube 112 is located above the first side plate 113 and the second side plate 114, and both ends of the upper horizontal tube 112 are fixedly connected to the first side plate 113 and the second side plate 114, respectively. The lower crossbeam 117 is located below the first side plate 113 and the second side plate 114. The first side plate 113 is connected to one end of the lower crossbeam 117 through the first angle adjuster upper plate 115, and the second side plate 114 is connected to the other end of the lower crossbeam 117 through the second angle adjuster upper plate 116.

[0035] As can be seen, the first side plate 113, the upper horizontal tube 112, the second side plate 114, the second angle adjuster upper plate 116, the lower horizontal beam 117 and the first angle adjuster upper plate 115 are connected end to end in sequence to form an enclosed structure, and the enclosed structure forms the middle accommodating area 111.

[0036] The backrest frame 110 also includes a mounting bracket 118, which spans between the first side plate 113 and the second side plate 114. That is, the two ends of the mounting bracket 118 are connected to the first side plate 113 and the second side plate 114 respectively, and the retractor 120 is disposed on the mounting bracket 118.

[0037] Figure 4The X arrow points in the left-right direction, and the Z arrow points in the vertical direction. Using the vehicle as a reference, the left-right direction represents the vehicle's width, the front-back direction represents its length, and the vertical direction represents its height.

[0038] In practical applications, the base 11 of the vehicle seat 10 is provided with a first lower adjuster plate 13 and a second lower adjuster plate 14 on the left and right sides respectively. The first lower adjuster plate 13 corresponds to the first upper adjuster plate 115, and the second lower adjuster plate 14 corresponds to the second upper adjuster plate 116.

[0039] Both the upper plate 115 and the upper plate 116 of the first and second angle adjusters are provided with stop brackets 119, while both the lower plate 13 and the lower plate 14 of the first and second angle adjusters are provided with stops. During the adjustment of the ABTS seat 100 angle, the stop brackets 119 and the stops selectively abut against each other to limit the angle range of the ABTS seat 100.

[0040] In this embodiment, in the left-right direction, the retractor 120 is closer to the first side plate 113, and the seat belt outlet bracket is installed at the connection position between the first side plate 113 and the upper horizontal tube 112 on the backrest frame 110, forming an arrangement close to the retractor 120.

[0041] In fact, the seat belt exit bracket includes a front bracket 131 and a rear bracket 132 that are opposite to and connected in the front-rear direction. The front bracket 131 is connected to the front surface of the first side plate 113 and the upper horizontal tube 112, and the rear bracket 132 is connected to the rear surface of the first side plate 113 and the upper horizontal tube 112.

[0042] Please refer to the following: Figure 7 , Figure 7 The diagram shown is a structural schematic of the first side plate 113.

[0043] In order to avoid the retractor 120 and provide more space for the installation of the retractor 120, in this embodiment, the first side plate 113 is formed with an opening structure 1131 facing the receiving area 111.

[0044] In this embodiment, the first side plate 113 includes a front plate wall 1133, a rear plate wall 1134 and a side plate wall 1135. The front plate wall 1133 and the rear plate wall 1134 are opposite to each other in the front-back direction and are spaced apart, and are connected by the side plate wall 1135 to form an opening structure 1131.

[0045] Please refer to the following: Figure 8 , Figure 9 and Figure 10 , Figure 8 As shown Figure 5 Sectional view of AA, Figure 9 As shown Figure 5Sectional view of BB, Figure 10 As shown Figure 5 A cross-sectional view of EE.

[0046] In practical applications, when the retractor 120 is mounted on the mounting bracket 118, part of its structure can extend into the opening structure 1131 of the first side plate 113 to obtain a larger installation space and avoid the first side plate 113 interfering with the installation position of the retractor 120.

[0047] In this embodiment, the cross-section of the first side plate 113 is approximately C-shaped, with the opening facing the side where the second side plate 114 is located. That is, the front plate wall 1133, the rear plate wall 1134 and the side plate wall 1135 form a groove-shaped opening structure 1131.

[0048] Furthermore, in order to further improve the installation space of the retractor 120, in this embodiment, both the front plate wall 1133 and the rear plate wall 1134 have recessed portions 1139 that are recessed in a direction away from the second side plate 114. When the retractor 120 is installed, part of its structure can extend into the recessed portion 1139.

[0049] Please refer to the following: Figure 11 and Figure 12 , Figure 11 As shown Figure 5 Sectional view of CC, Figure 12 As shown Figure 5 A sectional view of DD.

[0050] In this embodiment, the top of the first side plate 113 is provided with an overlapping part, and one end of the upper horizontal tube 112 overlaps the overlapping part and is fixed by welding.

[0051] In this embodiment, when assembling the upper horizontal tube 112 with the first side plate 113, it is only necessary to overlap the end of the upper horizontal tube 112 away from the second side plate 114 with the overlapping part at the top of the first side plate 113. After the overlap is completed, welding and fixing can be performed, eliminating the need for clamping the two profiles of the bracket 30. The assembly process is convenient, quick and easy, saving time and effort.

[0052] In order to improve the stability of the connection structure between the upper horizontal tube 112 and the overlapping part, in this embodiment, the overlapping part is formed with an upward-facing groove structure 1132, and one end of the upper horizontal tube 112 is at least partially embedded in the groove structure 1132 and welded and fixed to at least one side of the groove wall of the groove structure 1132.

[0053] Preferably, the groove structure 1132 in this embodiment is U-shaped, meaning that the groove structure 1132 extends through both sides of the first side plate 113 in the left-right direction. Specifically, it includes a groove bottom wall supporting the bottom of the upper horizontal tube 112, and two groove side walls that limit the movement of the upper horizontal tube 112 in the front-back direction. The bottom of the upper horizontal tube 112 is welded and fixed to the groove bottom wall, and the front and back sides of the upper horizontal tube 112 are welded to the two groove side walls respectively, forming a reliable limit and fixation of the upper horizontal tube 112.

[0054] Furthermore, in another embodiment, the specific shape of the groove structure 1132 can be adjusted according to actual application conditions, for example, it can also be V-shaped, and the end of the groove structure 1132 that is away from the second side plate 114 in the left and right direction can also be closed.

[0055] Please refer to the following: Figure 13 , Figure 14 and Figure 15 , Figure 13 The diagram shown is a structural schematic of the upper horizontal tube 112 and the first side plate 113 in the initial stage of assembly. Figure 14 The diagram shown is a structural schematic of the upper horizontal tube 112 and the first side plate 113 before assembly. Figure 15 The diagram shows the structure of the upper horizontal tube 112 and the first side plate 113 after assembly.

[0056] At the start of assembly, place the upper horizontal tube 112 above the first side plate 113, and align one end of the upper horizontal tube 112 with the opening of the groove structure 1132, such as... Figure 11 As shown. Then, a force is applied to move the upper horizontal tube 112 downwards, causing it to gradually approach the opening of the groove structure 1132, as... Figure 12 As shown. When the groove structure 1132 is embedded at one end of the upper horizontal tube 112, the assembly of the upper horizontal tube 112 and the first side plate 113 is completed, as shown. Figure 13 As shown. Then, the upper horizontal tube 112 and the groove wall of the groove structure 1132 are welded and fixed. The whole assembly process is convenient and quick.

[0057] Please refer to the following: Figure 16 and Figure 17 , Figure 16 The diagram shows the connection structure between the upper horizontal tube 112 and the first side plate 113. Figure 17 As shown Figure 16 A cross-sectional view of GG.

[0058] In this embodiment, a bottom overlapping wall 1136 is provided at the top of the side plate wall 1135, and the tops of the front plate wall 1133 and the rear plate wall 1134 protrude upward from the bottom overlapping wall 1136, forming a groove structure 1132 together with the bottom overlapping wall 1136. One end of the upper horizontal tube 112 is welded and fixed to the bottom overlapping wall 1136, the front plate wall 1133 and the rear plate wall 1134 respectively.

[0059] Preferably, the bottom overlapping wall 1136 is integrally formed with the side panel wall 1135, specifically formed by bending the top of the side panel wall 1135 towards the direction close to the second side panel 114. In other words, in this embodiment, the overlapping part is actually a part of the first side panel 113, that is, the overlapping part is integrally formed with the first side panel 113, which makes the overall structural strength of the backrest frame 110 higher and the stability better.

[0060] In another embodiment, the overlapping part may also be a structure independent of the first side plate 113, and be fixedly connected to the first side plate 113 by a connection method such as welding.

[0061] Please see Figure 18 and Figure 19 , Figure 18 The diagram shown is a schematic representation of the connection structure between the first side plate 113 and the upper horizontal tube 112 in another embodiment. Figure 19 As shown Figure 18 A cross-sectional view of HH.

[0062] exist Figure 18 In the embodiment shown, the bottom overlapping wall 1136 is a structure independent of the side plate wall 1135, and is welded and fixed to the side plate wall 1135 of the first side plate 113.

[0063] In another embodiment, the bottom overlapping wall 1136 can also be fixedly connected to the side plate wall 1135 using other detachable connection methods. Since the bottom overlapping wall 1136 serves to support the upper horizontal tube 112 and has a relatively high risk of deformation, the bottom overlapping wall 1136 is connected to the side plate wall 1135 using a detachable connection method, which facilitates replacement of the bottom overlapping wall 1136 in the event of deformation.

[0064] Please refer to the above. Figure 20 and Figure 21 , Figure 20 The diagram shown is a structural schematic of the overlapping section. Figure 21 The diagram shows the structure of the upper horizontal tube 112 overlapping the joint.

[0065] To improve the limiting and fixing effect on the upper horizontal tube 112, in this embodiment, the front plate wall 1133 has a front overlapping edge 1137 welded to the front surface of the upper horizontal tube 112, and the rear plate wall 1134 has a rear overlapping edge 1138 welded to the rear surface of the upper horizontal tube 112. The axis of the portion of the upper horizontal tube 112 embedded in the groove structure 1132 lies in the plane formed by the front overlapping edge 1137 and the rear overlapping edge 1138.

[0066] In other words, the front overlapping edge 1137 on the front plate wall 1133 and the rear overlapping edge 1138 on the rear plate wall 1134 are parallel, and the plane formed by the two is parallel to the front-rear direction, and the radial portion of the upper horizontal tube 112 embedded in the groove structure 1132 is evenly divided into two semi-circular parts. On the one hand, this achieves reliable positioning of the upper horizontal tube 112 on both sides in the front-rear direction, and on the other hand, it facilitates welding and fixing the front overlapping edge 1137, the rear overlapping edge 1138 and the upper horizontal tube 112.

[0067] To prevent the bottom overlapping wall 1136 from rebounding and to improve its bending resistance, in this embodiment, a triangular rib 141 is provided between the bottom overlapping wall 1136 and the side plate wall 1135 body. Specifically, the triangular rib 141 is located at the inside corner formed by the bending of the bottom overlapping wall 1136 relative to the side plate wall 1135 body.

[0068] Please refer to the following: Figure 22 and Figure 23 , Figure 22 The image shown is a schematic diagram of a portion of the structure of the first side plate 113 from one perspective. Figure 23 The diagram shown is a partial structural schematic of the first side plate 113 from another perspective.

[0069] In order to match the width of the groove structure 1132 and improve the bending modulus of the rear plate wall 1134, in this embodiment, the width dimension of the side plate wall 1135 in the front-rear direction gradually increases in at least a section downward from the groove structure 1132.

[0070] In other words, the width of the side panel wall 1135 gradually increases downwards from the point where it bends over the bottom overlapping wall 1136, significantly increasing the moment of inertia of the side panel wall 1135, reducing local stress concentration, and thus effectively improving the flexural modulus of the structure and enhancing the load-bearing capacity of the rear panel wall 1134 under bending moment. That is, Figure 23 In the equation, X1 < X2 < X3.

[0071] In order to improve the bending modulus of the front wall 1133 and the rear wall 1134 and to reinforce the first side plate 113, while reducing the space occupied in the left and right directions to avoid the retractor 120, in this embodiment, the width of the front wall 1133 and the rear wall 1134 in the left and right directions gradually decreases in at least a section from the bottom overlapping wall (1136) downwards.

[0072] Taking the front plate wall 1133 as an example, in a region extending downwards from the part that participates in forming the groove structure 1132, the front plate wall 1133 gradually narrows. That is, Figure 22 In the equation, Y1 > Y2 > Y3. It can be seen that at the height position where the width of the side plate wall 1135 is relatively narrow, the width of the front plate wall 1133 and the rear plate wall 1134 is relatively wide, which can reinforce the first side plate 113 at this height position and reduce the space occupied in the left and right directions.

[0073] Furthermore, since the front panel wall 1133 and the rear panel wall 1134 are wider closer to the top, the support area of ​​the surface skin at the shoulder position of the vehicle seat 10 can be increased, thereby significantly improving the comfort of the vehicle seat 10.

[0074] Please refer to the following: Figure 24 and Figure 25 , Figure 24 The diagram shown is a structural schematic of the upper horizontal tube 112. Figure 25 The diagram shows a schematic of the pipe opening structure at one end of the upper horizontal pipe 112 that connects to the first side plate 113.

[0075] In order to increase the overlap between the upper horizontal tube 112 and the bottom overlapping wall 1136, thereby improving the welding strength between the two, in this embodiment, the upper horizontal tube 112 has a bottom overlapping surface 1121 extending to the tube opening, and the bottom overlapping surface 1121 is attached to and welded to the upper surface of the bottom overlapping wall 1136.

[0076] It is understood that the upper horizontal tube 112 in this embodiment is a hollow tubular structure, and the bottom overlapping surface 1121 is flattened from the tube opening and is roughly flat, which can stably fit with the upper surface of the bottom overlapping wall 1136.

[0077] Please refer to the above. Figure 26 , Figure 26 The diagram shows the structure of the upper horizontal tube 112 connected to the first side plate 113 and the second side plate 114.

[0078] In this embodiment, the upper horizontal tube 112 includes a first tube segment 1122, a second tube segment 1123, a third tube segment 1124, and a fourth tube segment 1125. One end of the first tube segment 1122 is connected to the first side plate 113, and the other end extends obliquely upward and connects to one end of the second tube segment 1123. The other end of the second tube segment 1123 extends toward the second side plate 114. One end of the third tube segment 1124 is connected to the end of the second tube segment 1123 away from the first tube segment 1122, and the other end extends obliquely downward and connects to one end of the fourth tube segment 1125. The end of the fourth tube segment 1125 away from the third tube segment 1124 extends vertically downward into the second side plate 114 and is fixedly connected to the second side plate 114.

[0079] It should be noted that the axis of the first pipe segment 1122 lies in the plane formed by the front overlap edge 1137 and the rear overlap edge 1138. The axis of the first pipe segment 1122 refers to the axis of the remaining main body parts excluding the section where the bottom overlap surface 1121 is located.

[0080] It is understood that the first side plate 113 and the second side plate 114 both extend approximately vertically, and the second pipe segment 1123 of the mounting bracket 118, the lower crossbeam 117, and the upper cross tube 112 extends approximately horizontally. A guide sleeve 1126 that mates with the headrest insert is provided on the second pipe segment 1123. Preferably, in this embodiment, the first pipe segment 1122 of the upper cross tube 112 and the first side plate 113 form a concave angle structure facing the receiving area 111, and this concave angle structure is greater than 90°.

[0081] Furthermore, the angle between the first pipe segment 1122 and the horizontal plane is greater than the angle between the second pipe segment 1123 and the horizontal plane. The first pipe segment 1122 and the second pipe segment 1123 also form an inside angle structure facing the receiving area 111, and this inside angle structure is also greater than 90°.

[0082] The two internal angle structures greater than 90° formed between the first pipe section 1122 and the first side plate 113, and between the first pipe section 1122 and the second pipe section 1123, allow the space of the accommodating area 111 to be fully utilized by the retractor 120 and the seat belt opening bracket, thus avoiding space waste.

[0083] Please refer to the following: Figure 27 , Figure 27 The diagram shown is a structural schematic of the assembly process of the upper horizontal tube 112 with the first side plate 113 and the second side plate 114.

[0084] Preferably, in this embodiment, the second side plate 114 also has a groove structure 1132 facing the receiving area 111, one end of which is opened at the top of the second side plate 114.

[0085] Before assembling the upper horizontal tube 112 with the first side plate 113 and the second side plate 114, the first side plate 113, the second side plate 114, the first angle adjuster upper plate 115, the second angle adjuster upper plate 116, and the lower crossbeam 117 can be connected to form an integral structure. Then, the upper horizontal tube 112 is placed above the first side plate 113 and the second side plate 114, so that the end of the first section 1122 of the upper horizontal tube 112 away from the second section 1123 is aligned with the opening of the groove structure 1132 on the top of the first side plate 113, and the bottom end of the fourth section 1125 of the upper horizontal tube 112 is aligned with the top opening of the groove structure 1132 on the second side plate 114.

[0086] Then, a force is applied to move the upper horizontal tube 112 downwards until the end of the first tube segment 1122 away from the second tube segment 1123 is embedded in the groove structure 1132 of the first side plate 113, and the bottom end of the fourth tube segment 1125 is inserted into the groove structure 1132 on the second side plate 114. Finally, it is welded and fixed. As can be seen, the whole assembly process is convenient, quick and easy, saving time and effort.

[0087] Furthermore, the ABTS seat 100 provided in this embodiment also has a universal backrest frame 110. Specifically, since the first side panel 113 is connected to the lower crossbeam 117 through the first adjuster upper plate 115, and the second side panel 114 is connected to the lower crossbeam 117 through the second adjuster upper plate 116, when the backrest frame 110 is applied to vehicle seats 10 with different opening requirements, only the dimensions of the first adjuster upper plate 115, the second adjuster upper plate 116, and the upper cross tube 112 need to be adjusted, avoiding the high cost of large-part molds that would result from adjusting the dimensions of the first side panel 113, the second side panel 114, and the lower crossbeam 117.

[0088] In addition, in this embodiment, the thickness of the first adjuster upper plate 115 is greater than the thickness of the first side plate 113, and the thickness of the second adjuster upper plate 116 is greater than the thickness of the second side plate 114. On the one hand, this meets the strength requirements of the ABTS seat 100, and on the other hand, it achieves the lightweighting of the overall structure, thereby reducing production costs.

[0089] In summary, the ABTS seat 100 provided in this embodiment has the advantages of lower assembly difficulty, larger installation space for the retractor 120, and better structural stability.

[0090] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An ABTS seat comprising a backrest frame (110) formed with a receiving area (111), characterized in that, The backrest frame (110) includes an upper horizontal tube (112) at the top of the accommodating area (111) and a first side plate (113) on one side of the accommodating area (111) in the left-right direction. The upper horizontal tube (112) includes a first tube segment (1122) inclined relative to the horizontal plane. One end of the first tube segment (1122) is fixedly connected to the first side plate (113) and forms a concave corner structure facing the accommodating area (111) at an angle greater than 90°. The first side plate (113) has an opening structure (1131) formed on it facing the accommodating area (111).

2. The ABTS seat of claim 1, wherein, The top of the first side plate (113) is provided with an overlapping part, which is integrally formed or fixedly connected to the first side plate (113). One end of the first pipe section (1122) overlaps the overlapping part and is welded and fixed.

3. The ABTS seat of claim 2, wherein, The overlapping portion forms an upward-facing groove structure (1132), and one end of the first pipe section (1122) is at least partially embedded in the groove structure (1132) and welded and fixed to the groove structure (1132).

4. The ABTS seat of claim 1, wherein, The first side panel (113) includes a front panel wall (1133), a rear panel wall (1134), and a side panel wall (1135). The front panel wall (1133) and the rear panel wall (1134) are arranged opposite to each other and spaced apart in the front-rear direction, and are connected by the side panel wall (1135) to form the opening structure (1131).

5. The ABTS seat of claim 4, wherein, The top of the side panel wall (1135) is provided with a bottom overlapping wall (1136), and the tops of the front panel wall (1133) and the rear panel wall (1134) protrude upward from the bottom overlapping wall (1136), forming a groove structure (1132) together with the bottom overlapping wall (1136). One end of the first pipe section (1122) is at least partially embedded in the groove structure (1132) and welded to at least one of the bottom overlapping wall (1136), the front plate wall (1133) and the rear plate wall (1134).

6. The ABTS seat of claim 5, wherein, The bottom overlapping wall (1136) is constructed by bending and extending the top of the side plate wall (1135); or, The bottom overlapping wall (1136) is fixedly connected to the side plate wall (1135).

7. The ABTS seat according to claim 5, characterized in that, The first pipe segment (1122) has a bottom overlapping surface (1121) extending to the pipe opening, the bottom overlapping surface (1121) being attached to and welded to the upper surface of the bottom overlapping wall (1136).

8. The ABTS seat according to claim 5, characterized in that, The front plate wall (1133) has a front lap edge (1137) welded to the front side surface of the first pipe section (1122), and the rear plate wall (1134) has a rear lap edge (1138) welded to the rear side surface of the first pipe section (1122). The axis of the first pipe segment (1122) lies in the plane formed by the front overlap edge (1137) and the rear overlap edge (1138).

9. The ABTS seat according to claim 5, characterized in that, In at least a region extending downwards from the bottom overlapping wall (1136), the width of the side panel wall (1135) gradually increases; and / or, In at least a section of the area extending downward from the bottom overlapping wall (1136), the width dimension of the front plate wall (1133) and / or the rear plate wall (1134) gradually decreases in the left-right direction.

10. The ABTS seat according to claim 1, characterized in that, The upper horizontal tube (112) further includes a second tube segment (1123). The angle between the first tube segment (1122) and the horizontal plane is greater than the angle between the second tube segment (1123) and the horizontal plane. The end of the first tube segment (1122) away from the first side plate (113) is connected to the end of the second tube segment (1123) and forms a concave corner structure facing the accommodating area (111) and greater than 90°.

11. The ABTS seat according to claim 4, characterized in that, The front panel wall (1133) and / or the rear panel wall (1134) have recesses (1139) that are recessed in a direction away from the receiving area (111).

12. The ABTS seat according to claim 1, characterized in that, The ABTS seat (100) also includes a seat belt exit bracket, which is located at the connection position between the first tube segment (1122) and the first side plate (113) and is connected to at least one of the first tube segment (1122) and the first side plate (113).

13. The ABTS seat according to claim 1, characterized in that, The backrest frame (110) also includes a second side plate (114), a first upper plate of the angle adjuster (115), a second upper plate of the angle adjuster (116), and a lower crossbeam (117). The first side plate (113), the upper cross tube (112), the second side plate (114), the second upper plate of the angle adjuster (116), the lower crossbeam (117), and the first upper plate of the angle adjuster (115) are connected end to end in sequence to form the accommodating area (111).

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