Multi-purpose seat profile skeleton and mounting method

Abstract

This invention discloses a versatile seat frame and its installation method. The frame includes a main body and a C-shaped groove on the side wall of the vehicle body that mates with the main body, along with a first T-bolt. The main body is connected to the first T-bolt via a fastener nut washer. A seat cover and a slider nut are located at the top of the end of the main body away from the C-shaped groove. A second T-bolt is located below the seat cover and connects to the slider nut. An adjusting shim is placed between the second T-bolt and the slider nut. The method includes: connecting the main body of the frame to the C-shaped groove via the first T-bolt; and connecting the second T-bolt to the slider nut via a keyhole in the main body of the frame. This invention is applicable to any type of subway seat, is easy to process, has minimal deformation, is easy to install, has simple interfaces, and offers high interchangeability and modularity.

Description

Technical Field

[0001] This invention relates to the field of subway vehicle interior design, specifically to a versatile seat frame and installation method, which is installed on the subway vehicle body to support the seats. Background Technology

[0002] In recent years, urban rail transit has developed rapidly, and subway trains have reduced congestion, providing convenient and fast travel services for passengers. More and more passengers are choosing to commute by subway. To meet the diverse and multi-level travel needs of passengers and improve the service quality of subway trains, subway seats play a crucial role.

[0003] Currently, the seat frames in my country's subway cars are mainly either integrally welded frames or welded from separate square tubes. Traditional subway seat frames require welding aluminum square tubes together to provide load-bearing support for the seats. Integral welded frames are heavy, costly to weld, and prone to significant deformation. Existing seat frames require bending aluminum alloy square tubes and then welding them to a continuous square tube. The bent square tubes are vertically fastened to transition brackets connected to the car body with bolts, and elongated holes in the continuous square tubes are bolted to pre-embedded rivets on the seat cover profiles. For example, Chinese patent CN201921121299.0 discloses an aluminum alloy seat frame comprising a seat frame, an upper connecting plate, shaped tubes, square tubes, etc., forming an integral aluminum alloy frame. The individual aluminum profiles are machined, and the multiple sets of aluminum profiles are assembled by welding and bolting. When used with seats, the seat structure needs to be modified and optimized for matching. Traditional subway seat frames require welding aluminum square tubing together to provide load-bearing support. This integral welded frame is relatively heavy, has high welding costs, and is prone to significant welding deformation. Existing technologies have the following specific drawbacks: (1) Currently, the production cycle of conventional seat frames is long, the varieties are diverse, the welding quality is inconsistent, and the cost is high. Due to the deformation of the welding, the installation tolerance with the seat cover is increased, the installation accuracy requirement is high, and the workshop time is increased.

[0004] (2) Because of the overall welding, the length of the frame is different for seats of different lengths. Several types of seat frames can appear in the same vehicle. Different seat frames need to be made according to different seats, resulting in poor interchangeability.

[0005] (3) The integral welded frame bend is connected to the bracket, and the bracket is then fastened to the vehicle body, which increases the cost. The adjustment margin in the length and width of the seat cover is small, the installation is time-consuming and labor-intensive, and the use is inconvenient.

[0006] No effective solutions have yet been proposed to address the problems in the relevant technologies. Summary of the Invention

[0007] In view of the problems in the related technologies, the present invention proposes a versatile seat frame and installation method to overcome the above-mentioned technical problems existing in the existing related technologies.

[0008] Therefore, the specific technical solution adopted by the present invention is as follows: According to one aspect of the present invention, a multi-applicable seat profile frame is provided, comprising a profile frame body located on one side of a vehicle body sidewall, and a C-shaped groove of the vehicle body is provided on the vehicle body sidewall to mate with the profile frame body. A first T-bolt is provided on the side of the C-shaped groove of the vehicle body and on the vehicle body sidewall. The profile frame body is connected to the first T-bolt by a fastener nut washer. A seat cover is provided at the top of the end of the profile frame body away from the C-shaped groove of the vehicle body. A slider nut is provided at the bottom of the seat cover. A second T-bolt is provided below the seat cover and at the top of the profile frame body. The second T-bolt is connected to the slider nut, and an adjusting shim is provided between the second T-bolt and the slider nut.

[0009] Furthermore, in order to connect with the vehicle body and provide support for the seats, the main body of the profile frame includes a vertical frame set on the side of the vehicle body side wall, and a horizontal frame set at the end of the vertical frame away from the vehicle body side wall.

[0010] Furthermore, in order to connect with the vehicle body, an open elongated hole is provided at one end of the vertical frame near the side wall of the vehicle body, and the first T-bolt passes through the open elongated hole and is connected to the fastener nut washer.

[0011] Furthermore, in order to connect with the seat cover, a keyhole is provided in the lateral frame, and a second T-bolt passes through the keyhole and is connected to the slider nut.

[0012] Furthermore, in order to ensure a stable connection between the vertical and horizontal skeletons, the vertical and horizontal skeletons are connected by a V-shaped joint and are welded together.

[0013] Furthermore, to accommodate seats of different lengths, the main body of the profile frame is 100 mm wide and is arranged in sections according to the length of the seat cover.

[0014] Furthermore, in order to accommodate seats of different lengths, when the main body of the profile frame is divided into sections, the circumscribed circle of each section is between 400 mm and 550 mm.

[0015] According to another aspect of the present invention, a method for installing a versatile seat profile frame is provided, the method comprising the following steps: The main body of the profile frame is connected to the C-shaped groove of the vehicle body by a first T-bolt; The second T-bolt passes through the keyhole on the main body of the profile frame and connects to the slider nut.

[0016] Furthermore, to support the seat, several versatile seat profile frames are distributed at the center of a seat.

[0017] Furthermore, in order to make the support force on the seat more even, when several multi-purpose seat profile frames are distributed in the center of a seat, the positions of the several multi-purpose seat profile frames are adjusted and arranged at equal intervals while meeting the strength requirements.

[0018] The beneficial effects of this invention are as follows: (1) The multi-applicable seat frame of the present invention can be directly connected to the vehicle body to support the seat; the vertical frame is connected to the seat cover through a slider nut, and the length and width of the vehicle can be adjusted, saving workshop installation time.

[0019] (2) The profile processing dimensions are stable, the process repeatability is strong, the mold can be reused, and the production cost is saved; the profile width is 100mm, and it can be arranged in sections according to different lengths of seats. For example, a six-seater can be arranged in the middle of each seat. The whole vehicle seat frame is uniform, there is no need to distinguish materials, the interchangeability is high, and the later maintenance cost is low; the production cycle of the seat frame is shortened, there is no need for overall welding, the deformation is small, the matching degree is improved, and the modularity of the product is improved; the profile processing is lightweight, achieving the weight reduction effect.

[0020] (3) The multi-applicable seat frame of the present invention is applicable to any kind of subway seat and can be evenly distributed. The frame is easy to process, has a small amount of deformation, is easy to install, has a simple interface, high interchangeability and modularity, and is lightweight and easy to operate. Its functionality and aesthetics are superior to existing seat structures. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a structural schematic diagram of a multi-applicable seat frame according to an embodiment of the present invention; Figure 2 yes Figure 1 A magnified view of a section at point A in the middle; Figure 3 This is a structural schematic diagram of the main body of the profile frame in a multi-applicable seat profile frame according to an embodiment of the present invention; Figure 4 yes Figure 3 The front view; Figure 5 This is a block diagram of the main body of the profile frame in a multi-applicable seat profile frame according to an embodiment of the present invention; Figure 6 This is one of the structural schematic diagrams of the vertical skeleton in a multi-applicable seat profile frame according to an embodiment of the present invention; Figure 7 This is a second schematic diagram of the vertical skeleton in a multi-applicable seat profile frame according to an embodiment of the present invention; Figure 8 This is the third structural schematic diagram of the vertical skeleton in a multi-applicable seat profile frame according to an embodiment of the present invention; Figure 9 This is one of the structural schematic diagrams of the transverse skeleton in a multi-applicable seat profile frame according to an embodiment of the present invention; Figure 10 This is a second schematic diagram of the transverse skeleton in a multi-applicable seat profile frame according to an embodiment of the present invention; Figure 11 This is the third schematic diagram of the transverse skeleton in a multi-applicable seat profile frame according to an embodiment of the present invention; Figure 12 This is a schematic diagram of the seven-person seat frame arrangement; Figure 13 This is a schematic diagram of the frame arrangement for a two-seater seat; Figure 14 This is a schematic diagram of a V-shaped docking.

[0023] In the picture: 1. Profile frame main body; 101. Vertical frame; 102. Horizontal frame; 2. Car body C-shaped groove; 3. First T-bolt; 4. Fastener nut washer; 5. Seat cover; 6. Sliding nut; 7. Second T-bolt; 8. Adjusting shim; 9. Opening elongated hole; 10. Keyhole. Detailed Implementation

[0024] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0025] According to embodiments of the present invention, a versatile seat frame and its installation method are provided. This structure is an integral frame, the shape of which matches the shape of the seat cover, and it is compatible with the C-groove interface of the seat cover and the vehicle body, and is interchangeable, adaptable to subway seats of various lengths. The versatile seat frame of the present invention is directly connected to the side wall of the vehicle body vertically and to the seat cover horizontally, eliminating the traditional connection method of subway seats where the frame is fixed to a bracket on the side wall and then fixed to the bracket. This ensures strength while maintaining a simple structure and facilitating installation.

[0026] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-14 As shown, according to an embodiment of the present invention, a multi-applicable seat profile frame is provided, including a profile frame body 1, the profile frame body 1 being located on one side of a vehicle body side wall, and a vehicle body C-shaped groove 2 being provided on the vehicle body side wall to cooperate with the profile frame body 1, a first T-bolt 3 being provided on the side of the vehicle body C-shaped groove 2 and located on the vehicle body side wall, the profile frame body 1 being connected to the first T-bolt 3 by a fastener nut washer 4; a seat cover 5 being provided at the top of the end of the profile frame body 1 away from the vehicle body C-shaped groove 2, a sliding nut 6 being provided at the bottom of the seat cover 5, a second T-bolt 7 being provided below the seat cover 5 and located at the top of the profile frame body 1, the second T-bolt 7 being connected to the sliding nut 6, and an adjusting shim 8 being provided between the second T-bolt 7 and the sliding nut 6.

[0027] With the help of the above solution, the present invention is applicable to any kind of subway seat, which can be evenly arranged, is easy to process, has little deformation, is easy to install, has simple interface, high interchangeability and modularity, and is lightweight and easy to operate.

[0028] In one embodiment, for the above-mentioned profile frame body 1, the profile frame body 1 includes a vertical frame 101 disposed on the side of the vehicle body sidewall, such as... Figure 6-8 As shown, a transverse frame 102 is provided at the end of the vertical frame 101 away from the side wall of the vehicle body, such as... Figure 9-11 As shown, this allows it to connect to the vehicle body and provide support for the seat.

[0029] In one embodiment, for the vertical frame 101, an open elongated hole 9 is provided at one end of the vertical frame 101 near the side wall of the vehicle body, and the first T-bolt 3 passes through the open elongated hole 9 and is connected to the fastener nut washer 4, so as to be able to connect with the vehicle body.

[0030] In one embodiment, for the aforementioned transverse frame 102, a keyhole 10 is provided inside the transverse frame 102, and a second T-bolt 7 passes through the keyhole 10 and is connected to the slider nut 6, thereby enabling it to be connected to the seat cover 5.

[0031] In one embodiment, the vertical frame 101 is connected to the horizontal frame 102 in a V-shape, and the vertical frame 101 and the horizontal frame 102 are welded together, thereby making the vertical frame 101 and the horizontal frame 102 firmly connected.

[0032] In one embodiment, the profile frame body 1 has a width of 100 mm (based on the universality requirements of process tooling manufacturing) and is arranged in blocks according to the length of the seat cover 5, so as to be suitable for seats of different lengths.

[0033] In one embodiment, for the above-mentioned profile frame body 1, when the profile frame body 1 is divided into blocks, the circumscribed circle of the block section is between 400 mm and 550 mm, the profile processing is simple, and thus it is suitable for seats of different lengths.

[0034] According to another embodiment of the present invention, a method for installing a multi-applicable seat profile frame is provided, the method comprising the following steps: The main body 1 of the profile frame is connected to the C-shaped groove 2 of the vehicle body by the first T-bolt 3; the connection method of adding an additional transition bracket is no longer used. The second T-bolt 7 passes through the keyhole 10 on the main body 1 of the profile frame and connects with the slider nut 6.

[0035] It can be installed on seats of different sizes. The traditional seat installation method is to combine three parts into one: seat bracket, seat frame and seat cover. The present invention is composed of two parts: the profile frame body 1 and the seat cover 5. The frame is arranged in blocks.

[0036] In one embodiment, several multi-applicable seat profile frames are distributed at the center of a seat.

[0037] In one embodiment, when several versatile seat profile frames are distributed at the center of a seat, the positions of these frames can be adjusted and evenly spaced, provided strength requirements are met. The interfaces are simple and easy to operate, resulting in more uniform support force on the seat. For example, a seven-seater seat can have one profile frame distributed at the center of each seat, meaning seven profile frames support one seat cover. Figure 12 As shown; the two-seater can have a profile frame distributed at the center of each seat, that is, two profile frames support one seat cover, such as... Figure 13 As shown.

[0038] To facilitate understanding of the above technical solutions of the present invention, the working principle or operation method of the present invention in actual process will be described in detail below.

[0039] In practical application, the first T-bolt 3 is installed into the C-groove 2 of the vehicle body, and then the vertical frame 101 is hung on the first T-bolt 3 through the open elongated hole 9 and fastened with fastener nut washer 4, with two connection points at the top and bottom; the slider nut 6 is placed in the reinforcing profile of the seat cover 5, and the seat cover 5 is placed on the horizontal frame 102, with the gap in the middle filled by the adjusting shim 8; the second T-bolt 7 passes through the keyhole 10 on the horizontal frame 102 and is fastened to the slider nut 6 in the seat cover 5, and the seat installation is completed.

[0040] In summary, the multi-applicable seat profile frame of this invention can be directly connected to the vehicle body, providing support for the seats. The vertical frame 101 is connected to the seat cover 5 via a slider nut 6, and can be adjusted in both the length and width of the vehicle, saving installation time in the workshop. The profile processing dimensions are stable, the process is highly repeatable, the molds can be reused, and production costs are reduced. The profile width is 100mm, allowing for segmented arrangement according to different seat lengths; for example, a six-seater can be arranged in the middle of each seat. The entire vehicle seat frame is uniform, eliminating the need to distinguish materials, resulting in high interchangeability and low maintenance costs. The seat frame production cycle is shortened, eliminating the need for overall welding, minimizing deformation, improving matching accuracy, and increasing product modularity. The profile processing is lightweight, achieving a weight reduction effect. The multi-applicable seat profile frame of this invention is suitable for any type of subway seat, can be evenly distributed, and is easy to process with minimal deformation. It is easy to install, has simple interfaces, high interchangeability and modularity, is lightweight, and simple to operate. Its functionality and aesthetics are superior to existing seat structures.

[0041] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-purpose seat profile skeleton comprising a profile skeleton body (1), characterized in that, The profile frame body (1) is located on one side of the vehicle body side wall, and the vehicle body side wall is provided with a vehicle body C-shaped groove (2) that cooperates with the profile frame body (1). The side of the vehicle body C-shaped groove (2) and located on the vehicle body side wall is provided with a first T-bolt (3). The profile frame body (1) is connected to the first T-bolt (3) through a fastener nut washer (4). A seat cover (5) is provided at the top of one end of the profile frame body (1) away from the C-shaped groove (2) of the vehicle body. A slider nut (6) is provided at the bottom of the seat cover (5). A second T-bolt (7) is provided below the seat cover (5) and at the top of the profile frame body (1). The second T-bolt (7) is connected to the slider nut (6), and an adjusting shim (8) is provided between the second T-bolt (7) and the slider nut (6). The profile frame body (1) includes a vertical frame (101) disposed on the side of the vehicle body side wall, and a horizontal frame (102) disposed at the end of the vertical frame (101) away from the vehicle body side wall; the vertical frame (101) and the horizontal frame (102) are connected in a V-shape, and the vertical frame (101) and the horizontal frame (102) are welded together; The profile frame body (1) is 100 mm wide and is divided into sections according to the length of the seat cover (5); when the profile frame body (1) is divided into sections, the circumscribed circle of the section section is between 400 mm and 550 mm.

2. The versatile seat frame according to claim 1, characterized in that, The vertical frame (101) has an open elongated hole (9) at one end near the side wall of the vehicle body, and the first T-bolt (3) passes through the open elongated hole (9) and is connected to the fastener nut washer (4).

3. The versatile seat frame according to claim 2, characterized in that, The transverse skeleton (102) is provided with a keyhole (10), and the second T-bolt (7) passes through the keyhole (10) and is connected to the slider nut (6).

4. A method for installing a multi-purpose seat profile frame, used for installing the multi-purpose seat profile frame as described in claim 3, characterized in that, The installation method includes the following steps: The profile frame body (1) and the C-shaped groove of the vehicle body (2) are connected by a first T-bolt (3); The second T-bolt (7) passes through the keyhole (10) on the profile frame body (1) and connects to the slider nut (6).

5. The installation method of a multi-applicable seat frame according to claim 4, characterized in that, Several of the aforementioned multi-applicable seat profile frames are distributed at the center of a seat.

6. The installation method of a multi-applicable seat frame according to claim 5, characterized in that, When several of the multi-applicable seat profile frames are distributed at the center of a seat, the positions of the several multi-applicable seat profile frames are adjusted and arranged at equal intervals while meeting the strength requirements.

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