CN201325486Y - Front seat installation rear beam structure - Google Patents

Abstract

The utility model discloses a rear crossbeam structure installed on a front seat. The rear beam assembly is installed on the seat, which is welded with the front floor, and the other end of the left side bracket (1) of the seat is welded together with the threshold. There are two rear beam assemblies installed on the front seat, symmetrical It is installed at the installation point behind the front row driver's seat and the front row passenger seat, and the middle channel reinforcement plate (6) is connected with the floor in the middle of the rear cross member assembly installed on the left and right front seats. A front seat-mounted rear crossbeam structure with this special structure can transmit the side-impact force very well in a side impact, reducing the deformation of the floor, thus achieving the maximum reduction Injuries to the occupants in the car and the slope shape of the upper surface of the crossbeam of the rear crossbeam of the front seat improve the comfort of the rear occupants.

Description

A front seat mounted rear beam structure

technical field

The utility model relates to an automobile body structure, in particular to a passenger car body front seat installation rear beam structure.

Background technique

Nowadays, as an important means of transportation, cars have entered thousands of households, and the safety and comfort of cars are more and more valued when people buy cars. With the development of automotive electronic technology, automobile manufacturers have applied a series of new technologies such as fastening seat belts, anti-lock braking systems, electronic stability devices, and airbags to automobiles. In the process, while ensuring a certain economy, the safety of the car body in the collision process should be improved as much as possible. The intersections of urban roads in my country are mainly plane intersections, according to statistical data. In 1998, the incidence rate of vehicle side collision accidents accounted for 31.65% of traffic accidents, and the number of seriously injured people accounted for 30.15%. These two indicators have exceeded the corresponding data of frontal collision accidents.

During the side collision, the body, especially the door and the front floor, are seriously deformed, which reduces the space of the passenger compartment and can easily cause serious injury to the occupants. For this situation. At present, manufacturers generally use complex-shaped front seat beams on the floor and add parts, or use very thick steel plates. However, there are some problems such as difficult forming of parts, complicated production process, high scrap rate of parts, and high production costs. column questions. At present, the general models do not have the seat rear beam or the height of the seat rear beam is very low, so that there is not much effect on the transmission of lateral force, so that the front floor is seriously deformed during the side collision process, thus affecting the passenger compartment. space, it is very easy to cause serious injury to the occupants of the car.

Utility model content

The technical problem to be solved by the utility model is to provide a rear crossbeam structure installed on the front seat in view of the problems existing in the prior art. The transmission of side impact force can improve the safety performance of the car, and can improve the comfort of the rear passengers.

The technical solution of the utility model is that the rear crossbeam structure of the front seat installation includes a front seat installation rear crossbeam assembly composed of the left side bracket of the seat, the rear crossbeam of the front seat and the right side bracket of the seat welded in sequence. The assembly is welded with the front floor, and the other end of the seat left bracket is welded with the door sill.

There are two rear beam assemblies installed on the front seats, which are symmetrically installed at the installation points behind the front driver's seat and the front passenger seat, and the left and right front seats are installed in the middle of the rear beam assembly. There is a channel stiffener connected to the floor.

The upper surface of the crossbeam of the rear crossbeam of the front seat has an inclination.

The maximum distance in the highest vertical direction of the rear cross member of the front seat is at least 50mm.

A front seat mounted rear beam structure having the above special structure has the following advantages:

1. In a side impact, the front seat is equipped with a rear beam structure that can transmit the side impact force well and reduce the deformation of the floor, thereby minimizing the injuries to the drivers and passengers in the car.

2. Since the crossbeam of the front seat rear crossbeam has a shape with a certain slope on the upper surface, the upper surface of the crossbeam forms a certain angle with the floor, which improves the comfort of the rear passengers.

3. The structure is simple and the manufacturing cost is low.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is further described:

Figure 1 is a schematic diagram of the structure of the rear cross member assembly installed on the front seat.

Fig. 2 is an A-A cross-sectional schematic view of the front seat shown in Fig. 1 installed with the rear beam.

Figure 3 is a schematic diagram of the stress on the front floor during a side collision.

FIG. 4 is a schematic diagram of the sitting posture of rear passengers.

In Figures 1 to 4, 1: seat left bracket; 2: front seat rear beam; 3: seat right bracket; 4: seat mounting point reinforcement plate; 5: front seat installation front beam; 6 : middle channel reinforcement plate; 7: door sill; 8: left rear crossbeam assembly installed on front seat; 9: right rear crossbeam assembly installed on front seat; 10: front floor body.

Angle α is the angle formed by the inclined surface of the rear beam of the front seat and the horizontal plane; H is the maximum height difference in the vertical direction of the rear beam of the front seat.

Detailed ways

From the combination of Figures 1 to 4, it can be seen that the front seat installation rear beam structure includes the front seat installation rear beam assembly composed of the seat left bracket 1, the front seat rear beam 2 and the seat right bracket 3 welded in sequence , the assembly is spot welded with the front floor, the other end of the seat left bracket 1 is spot welded with the door sill 7, and the seat mounting points are welded on the seat left bracket 1 and the seat right bracket 3 Reinforcement plate 4. There are two rear beam assemblies installed on the front seats, the rear beam 8 is installed on the left side of the front seat and the rear beam 9 is installed on the right side of the front seat, which are symmetrically installed behind the front driver's seat and the front passenger seat. At the installation point, there is a central channel reinforcing plate 6 in the middle of the rear beam assembly installed on the left and right front seats, which is connected to the floor. It is naturally placed on it to increase the comfort of the rear passengers.

The height of the rear crossbeam installed on the front seat is higher than that of the general models with the rear crossbeam installed on the seat, and the height difference in the vertical direction can reach at least 50mm. The collision force is mainly divided into two transmissions at the front cross beam 5 of the front seat and the rear cross beam 2 of the front seat. It avoids that only the front crossbeam of the front seat transmits most of the side impact force at the front floor, and this structure will make the deformation of the front crossbeam of the front seat relatively small, so that the deformation of the front floor is not very large, thereby effectively protecting the driver and passengers. In this way, on the premise of meeting the collision requirements, the material thickness of the front crossbeam sheet metal of the front seat can also be appropriately reduced, so as to reduce the weight of the vehicle body, further reduce fuel consumption, and reduce the use cost.

Claims (6)

1. A front seat is installed with a rear beam structure, characterized in that: the structure comprises a structure welded in turn by the seat left bracket (1), the front seat rear beam (2) and the seat right bracket (3) The rear cross beam assembly is installed on the front seat, which is welded together with the front floor, and the other end of the seat left side bracket (1) is welded together with the threshold. 2. A kind of front seat installation rear crossbeam structure according to claim 1, is characterized in that: described front seat installation rear crossbeam assembly has two, left and right symmetrically installed on front row driver's seat and At the installation point behind the front passenger seat, there is a central channel reinforcing plate (6) in the middle of the left and right front seat installation rear crossbeam assembly to connect with the floor. 3. A front seat rear beam structure according to claim 2, characterized in that: the upper surface of the front seat rear beam (2) has a slope. 4. A front seat installation rear beam structure according to claim 1, 2 or 3, characterized in that: the left side bracket (1) of the seat and the right side bracket (3) of the seat are all welded There is seat mounting point reinforcement (4). 5 . The rear crossbeam structure for installing the front seat according to claim 4 , wherein the maximum distance in the vertical direction of the rear crossbeam of the front seat is at least 50 mm. 5 . 6. A front seat installation rear beam structure according to claim 5, characterized in that: said welding is all spot welding.

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