阅读说明：本技术 中排座椅安装横梁 (Middle row seat mounting beam ) 是由 唐竞 林长波 杨文静 黄金荣 陈祖兴 于 2019-10-16 设计创作，主要内容包括：本发明公开了一种中排座椅安装横梁,涉及汽车制造技术领域,包括有位于后地板前横梁和后地板下横梁之间的座椅横梁,所述座椅横梁的两端分别穿过后纵梁与门槛梁固定连接,在所述座椅横梁上装有多个座椅安装支架。与现有技术相比,本发明位于中间的座椅和两侧的座椅全部安装在座椅安装支架上,只需要两种零件就可完成中排座椅的安装,生产需要的工装种类相应较少,生产成本低。座椅安装支架布置在座椅横梁上,消除了悬臂结构,提高了座椅安装点刚度。车体受到侧碰时,通过后地板前横梁、后地板下横梁和座椅横梁传力,增加了一条受侧碰传力路径,改善承受侧碰性能,同时有效提升扭转刚度。(The invention discloses a middle-row seat mounting beam, which relates to the technical field of automobile manufacturing and comprises a seat beam positioned between a front beam of a rear floor and a lower beam of the rear floor, wherein two ends of the seat beam respectively penetrate through a rear longitudinal beam to be fixedly connected with a threshold beam, and a plurality of seat mounting brackets are arranged on the seat beam. Compared with the prior art, the seat positioned in the middle and the seats on the two sides are all arranged on the seat mounting bracket, the middle-row seats can be mounted only by two parts, the types of tools required by production are correspondingly less, and the production cost is low. The seat mounting bracket is arranged on the seat beam, so that a cantilever structure is eliminated, and the rigidity of a seat mounting point is improved. When the vehicle body is subjected to side impact, a force transmission path subjected to side impact is increased through the front beam of the rear floor, the lower beam of the rear floor and the seat beam, the side impact bearing performance is improved, and meanwhile, the torsional rigidity is effectively improved.)

1. A well row seat installation crossbeam which characterized in that: the seat beam structure is characterized by comprising a seat beam (3) positioned between a front rear floor beam (1) and a lower rear floor beam (5), wherein two ends of the seat beam (3) penetrate through a rear longitudinal beam (6) and are fixedly connected with a threshold beam (2), and a plurality of seat mounting brackets (4) are arranged on the seat beam (3).

2. The mid-row seat mounting beam of claim 1, wherein: the seat beam (3) is provided with two side supporting plates (3-1) which extend upwards, the two side supporting plates (3-1) are arranged oppositely along the length direction of the seat beam (3), and a plurality of positioning grooves used for limiting the position of the seat mounting support (4) are arranged on the side supporting plates (3-1) at intervals.

3. The mid-row seat mounting cross member of claim 1 or 2, wherein: the seat mounting support (4) is provided with a mounting plate (4-1), a plurality of seat mounting holes are formed in the mounting plate (4-1), and two connecting support plates (4-3) are oppositely arranged at the bottom of the mounting plate (4-1).

4. The mid-row seat mounting beam of claim 3, wherein: the mounting plate (4-1) is provided with positioning plates (4-2) which respectively extend into the positioning grooves on the two side supporting plates (3-1), and the positioning plates (4-2) are fixedly connected with the side supporting plates (3-1).

5. The mid-row seat mounting beam of claim 3, wherein: the two connecting support plates (4-3) are positioned between the two side support plates (3-1), and the connecting support plates (4-3) are provided with lug plates (4-4) which are respectively fixedly connected with the two side support plates (3-1).

6. The mid-row seat mounting beam of claim 4, wherein: the two connecting support plates (4-3) are positioned between the two side support plates (3-1), and the connecting support plates (4-3) are provided with lug plates (4-4) which are respectively fixedly connected with the two side support plates (3-1).

Technical Field

The invention relates to the technical field of automobile manufacturing, in particular to a middle-row seat mounting beam.

Background

The mounting structure of a traditional row of seats in an automobile is shown in fig. 1, two seat longitudinal beams 12 are welded between a front rear floor cross beam 13 and a lower rear floor cross beam 16, side seat supports 15 extending outwards are respectively arranged on the outer sides of the two seat longitudinal beams 12, middle seat supports 11 are respectively welded on the two seat longitudinal beams 12, side seat mounting seats 14 are respectively welded on two rear longitudinal beams 17, seats located in the middle are mounted on the two middle seat supports 11, and seats located on two sides are mounted on the side seat supports 15 and the side seat mounting seats 14. In this way, the types of parts used for installing the middle-row seats are multiple, and the types of tools required by production are correspondingly more, so that the production cost is high; the side seat support on the seat longitudinal beam is of a cantilever structure, and the rigidity of the seat mounting point is poor. Because the front cross beam of the rear floor and the C column are staggered at a certain distance in the transverse direction, when the vehicle body is laterally collided, force is transferred through the front cross beam of the rear floor and the lower cross beam of the rear floor, as shown by arrows in figure 2; the force transmission path under side impact is long, and the torsional rigidity and the side impact bearing performance are poor.

Disclosure of Invention

The invention aims to solve the problem of providing a middle-row seat mounting beam which can solve the problems of multiple types of parts and high production cost in the prior mounting of middle-row seats; the side seat support is of a cantilever structure, and the rigidity of the seat mounting point is poor; the transmission path of the car body under side impact is long, and the torsional rigidity and the side impact bearing performance are poor.

In order to solve the problems, the invention adopts the technical scheme that: the middle-row seat mounting cross beam comprises a seat cross beam positioned between a front cross beam of a rear floor and a lower cross beam of the rear floor, wherein two ends of the seat cross beam respectively penetrate through a rear longitudinal beam to be fixedly connected with a threshold beam, and a plurality of seat mounting brackets are mounted on the seat cross beam.

In the above technical scheme of the middle-row seat mounting cross beam, a more specific technical scheme may also be: the seat beam is provided with two side supporting plates which extend upwards, the two side supporting plates are arranged oppositely along the length direction of the seat beam, and a plurality of positioning grooves used for limiting the position of the seat mounting support are arranged on the side supporting plates at intervals.

Furthermore, the seat mounting support is provided with a mounting plate, a plurality of seat mounting holes are formed in the mounting plate, and two connecting support plates are oppositely arranged at the bottom of the mounting plate.

Furthermore, the mounting plate is provided with two positioning plates which respectively extend into the positioning grooves on the side supporting plates, and the positioning plates are fixedly connected with the side supporting plates.

Furthermore, the two connecting support plates are positioned between the two side support plates, and the connecting support plates are provided with lug plates fixedly connected with the two side support plates respectively.

Due to the adoption of the technical scheme, compared with the prior art, the invention has the following beneficial effects:

1. two ends of a seat beam respectively penetrate through a rear longitudinal beam to be fixedly connected with a threshold beam, and a plurality of seat mounting brackets are arranged on the seat beam; the seat that is located the centre and the seat of both sides are all installed on the seat installing support, only need two kinds of parts just can accomplish the installation of well row seat, and the frock kind that the production needs is corresponding less, and the frock expense reduces 30 ten thousand yuan, and single platform truck part cost reduces 4 yuan, reduction in production cost. The seat mounting bracket is arranged on the seat beam, so that a cantilever structure is eliminated, and the rigidity of a seat mounting point is improved. When the automobile body is subjected to side impact, a force transmission path under the side impact is increased through the front beam of the rear floor, the lower beam of the rear floor and the seat beam, so that the side impact bearing performance is improved, the intrusion amount of the side door under the side impact is reduced by 10%, and the torsional rigidity of the white automobile body is improved by 5%.

2. The seat crossbeam is equipped with two collateral branch faggings that upwards stretch out, and two collateral branch faggings set up along the length direction of seat crossbeam relatively, and the interval is equipped with a plurality of constant head tanks on the collateral branch fagging. The integral strength of the seat beam is improved, the seat mounting bracket is mounted and positioned through the positioning groove, and the mounting and positioning are convenient.

3. The seat mounting bracket is provided with a mounting plate, a plurality of seat mounting holes are arranged on the mounting plate, two connecting support plates are oppositely arranged at the bottom of the mounting plate, the mounting plate is provided with positioning plates which respectively extend into positioning grooves on two side support plates, and the positioning plates are fixedly connected with the side support plates; the seat mounting bracket is easy to position and mount, the positioning is accurate, and the working efficiency is improved.

4. The two connecting support plates are positioned between the two side support plates, and the connecting support plates are provided with lug plates which are fixedly connected with the two side support plates respectively; the seat mounting bracket and the seat cross beam are more firmly connected.

Drawings

Fig. 1 is a structural view of a conventional mid-row seat installation.

Fig. 2 is a diagram of a force transmission path of a side collision of a vehicle body mounted by using a conventional middle row seat.

Fig. 3 is a schematic structural diagram of an embodiment of the present invention.

FIG. 4 is a side impact force transmission path diagram of a vehicle body employing the mid-row seat of the present invention.

Fig. 5 is a schematic structural view of a seat cross member in an embodiment of the present invention.

FIG. 6 is a schematic view of a seat mounting bracket according to an embodiment of the present invention.

Detailed Description

The invention will be further described in detail with reference to the following examples:

the middle-row seat mounting cross beam shown in fig. 3 comprises a seat cross beam 3 positioned between a rear floor front cross beam 1 and a rear floor lower cross beam 5, two ends of the seat cross beam 3 respectively penetrate through rear longitudinal beams 6 to be welded with threshold beams 2, and four seat mounting brackets 4 are mounted on the seat cross beam 3 at intervals. The seat beam 3 is provided with two side supporting plates 3-1 extending upwards, the two side supporting plates 3-1 are oppositely arranged along the length direction of the seat beam 3, and four positioning grooves for limiting the position of the seat mounting bracket 4 are arranged on the side supporting plates 3-1 at intervals, as shown in fig. 5. The seat mounting support 4 is provided with a mounting plate 4-1, two seat mounting holes are formed in the mounting plate 4-1, the mounting plate 4-1 is provided with a positioning plate 4-2 which extends into positioning grooves in the two side support plates 3-1 respectively, and the positioning plate 4-2 is welded with the side support plates 3-1. The bottom of the mounting plate 4-1 is oppositely provided with two connecting support plates 4-3, the two connecting support plates 4-3 are positioned between the two side support plates 3-1, the connecting support plate 4-3 is provided with ear plates 4-4 which are respectively fixedly connected with the two side support plates 3-1, and the ear plates 4-4 are connected with the connecting support plate 4-3 at right angles, as shown in figure 6.

The seat positioned in the middle and the seats on the two sides are all arranged on the seat mounting bracket 4, the middle row of seats can be mounted only by two parts, the types of tools required by production are correspondingly less, the tool cost is reduced by 30 ten thousand yuan, the part cost of a single trolley is reduced by 4 yuan, and the production cost is reduced. The seat mounting bracket 4 is arranged on the seat beam 3, so that a cantilever structure is eliminated, and the rigidity of a seat mounting point is improved. The seat cross beam is close to the C column in the transverse direction, and when the vehicle body is laterally collided, force is transferred through the rear floor front cross beam 1, the rear floor lower cross beam 5 and the seat cross beam 3, as shown by arrows in figure 4; the side impact force transmission path is increased, the side impact bearing performance is improved, the side door intrusion amount is reduced by 10% after side impact, and the torsional rigidity of the body-in-white is improved by 5%.