JP2535961Y2 - Seat hinge mounting structure - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat hinge mounting structure for swingably supporting a seat back of a rear seat provided in a rear compartment of an automobile on a vehicle body.

[0002]

2. Description of the Related Art Conventionally, a seat back of a rear seat provided in a rear compartment of an automobile is swingably supported on a vehicle body via a seat hinge, and the seat back is folded toward a seat cushion via the seat hinge. By doing
A system in which the space in the rear compartment is enlarged to make effective use of the space is already known, for example, from Japanese Utility Model Laid-Open Publication No. 63-4732.

Further, as shown in FIG. 4, the seat hinge used as described above is provided with a fixed plate A fixed to the vehicle body side and a free swinging motion with respect to the fixed plate A via a hinge pin B. And a supported sheet mounting plate C. When attaching the seat hinge to the vehicle body side, a panel of an inner panel E constituting the wheel house D is provided by, for example, a wheel house D disposed on a side portion of a rear floor in a rear width of the rear compartment of the vehicle. Body E
2, the fixing plate A is fixed by welding means or the like so as to straddle the curved portion of the inner panel body E2, and a rear seat back F is mounted on the seat mounting plate C. It is possible to swing around the hinge pin B.

In FIG. 4, E1 denotes the panel body E
2 shows a welded flange bent at one end.

[0005]

However, in the above-described seat hinge mounting structure, the fixing plate A is fixed so as to straddle a curved portion of the inner panel main body E2, and the rear seat is fixed to the fixing plate A. Since the seat mounting plate C for mounting the back F is supported via the hinge pin B, when a large load is applied to the fixing plate A in a case where the rear seat back F receives an impact, the fixing plate A and the mounting portion of the fixing plate A may be buckled and deformed. Therefore, in order to enhance the mounting strength of the fixing plate A, a reinforcement G is added to the inner surface side of the panel body E2 as shown in FIG.
Alternatively, it is necessary to increase the thickness of the fixing plate A, which complicates the structure and increases the manufacturing cost.

According to the present invention, an inner panel body and an outer panel body that define a wheel house are fixed to one ends of these panel bodies by welding bent flanges, respectively. The present invention focuses on the fact that the rigidity of the boundary portion between the inner panel and the welding flange of the inner panel that is continuous with the welding flange is extremely high, and the purpose is to effectively utilize the welding flange portion of the highly rigid inner panel body. By doing so, it is possible to reliably prevent buckling deformation due to an impact load while adding a reinforcement to the mounting portion of the fixing plate, making the fixing plate thick, and reducing the manufacturing cost with a simple configuration. It is another object of the present invention to provide a seat hinge mounting structure that can prevent the above problem.

[0007]

In order to achieve the above object, the present invention comprises fixing a first welding flange bent at one end of an inner panel body and a second welding flange bent at one end of an outer panel body. A fixing plate fixed to the inner panel main body side of the vehicle having a wheel house defined by the inner panel main body and the outer panel main body, and a seat mounting plate supported on the fixing plate via a hinge pin so as to be swingable. The fixing plate is fixed to the side surface of the first welding flange, and the fixing plate is brought into contact with a boundary portion of the inner panel body with the first welding flange by a load acting on the fixing plate. And a receiving portion for receiving the load is integrally formed.

[0008]

In the above mounting structure, the fixing plate 5 of the seat hinge is fixed to a portion of the wheel house where the first welding flange and the second welding flange are fixed in a superposed state. The fixing plate can be fixed at the same time when the two welding flanges are welded, and of course, a reinforcement can be added to the mounting portion of the fixing plate 5 as in the related art. When the fixing plate 5 is subjected to a large load, the receiving portion 50 formed integrally with the fixing plate 5 is not required to have a large rigidity in the inner panel main body 21A. Immediately comes into contact with the boundary portion with the welding flange 22A, the load can be received at the boundary portion via the receiving portion 50, and the seat of the fixed plate 5 and the wheel house 2 can be received. Deformation and the like are prevented.

[0009]

FIG. 3 shows a rear cabin of an automobile as an embodiment to which the seat hinge mounting structure according to the present invention is applied. A wheel house 2 is provided on the side of the rear floor 1 in the vehicle width direction.
And a seat hinge 4 for swingably supporting the rear seat back 3 is attached to the wheel house 2.

As shown in FIG. 1, the wheel house 2 includes an inner panel 2A located on the vehicle interior side and an outer panel 2B located on the exterior side of the vehicle interior. Is a wheel house 2
The inner panel body 21A defines an inner wall surface, and a first welding flange 22A bent at a substantially right angle from one end of the inner panel body 21A. The outer panel 2B defines an outer wall surface of the wheel house 2. Outer panel main body 21B and outer panel main body 2
Second weld flange 2 bent at substantially right angle from one end of 1B
2B, and the wheel house 2 is configured by joining and integrating the two welding flanges 22A and 22B by spot welding.

Further, as is apparent from FIG. 1, the seat hinge 4 is supported by a fixed plate 5 fixed to the wheel house 2 side, and is swingably supported by the fixed plate 5 via a hinge pin 6. A seat mounting plate 7, and the rear seat back 3 is mounted on the mounting plate 7 via a fixture 71,
The rear seat back 3 is swingable about the hinge pin 6.

The following is a description of mounting the seat hinge 4 on the wheel house 2 as described above.

That is, when the fixing plate 5 is fixed to the first welding flange 22A of the inner panel 2A constituting the wheel house 2, and when an impact load or the like is applied to the fixing plate 5, Then, a receiving portion 50 for receiving the load is formed integrally with the inner panel main body 21A in contact with the boundary portion with the first welding flange 22A.

More specifically, the seat hinge 4 will be described.
As shown in FIGS. 1 and 2, the fixing plate 5 has a mounting portion 51 to which the sheet mounting plate 7 is mounted, and a pair of leg portions extending substantially orthogonally from both longitudinal sides of the mounting portion 51. 52, 52 and a pair of fixing members extending outward from the distal ends of the legs 52 so as to be substantially parallel to the mounting portion 51 and fixed to the first welding flange 22A of the inner panel 2A. Parts 53, 53,
On one side in the width direction of the mounting portion 51, the inner panel main body 21A extends along the side surface of the first welding flange 22A.
And a projecting piece 54 extending to the boundary with the first welding flange 22A is integrally provided, and the tip side of the projecting piece 54 is bent substantially orthogonally to the projecting piece 54 to form First welding flange 2
The receiving portion 50 facing the boundary portion with 2A is formed.

Then, each fixing portion 52 of the fixing plate 5 is
First welding flange 22 in the inner panel 2A
A is fixed to the side surface of A by spot welding.
The receiving portion 50 provided on the fixing plate 5 is opposed to the inner panel main body 21A in a state where the receiving portion 50 is almost in contact with the boundary portion with the first welding flange 22A.

As described above, the fixing plate 5 of the seat hinge 4 is attached to the side surface of the first welding flange 22A of the inner panel 2A fixed to the second welding flange 22B in a superposed state, in other words, Both welding flanges 22A,
The fixing strength of the fixing plate 5 to the wheel house 2 side is remarkably increased by fixing the fixing plate 5 to the portion where the fixing plate 5 is superposed and fixed, and the fixing plate 5 is fixed to the welding flange 22A by welding the fixing plate 5. The fixing plate 5 can be simultaneously fixed at the time of the two welding flanges 22A and 22B, so that the assembling workability is improved accordingly.

In addition, when a large load is applied to the fixed plate 5 in a case where the rear seat back 3 receives an impact, the receiving portion 50 formed integrally with the fixed plate 5 is provided with the rigidity. Immediately comes into contact with the boundary portion of the inner panel main body 21A with the first welding flange 22A, the load is received by the receiving portion 50,
Buckling and the like of the fixed plate 5 and the wheel house 2 due to this load are reliably prevented. Therefore, as in the conventional case, reinforcement is added or the fixed plate 5 is made thick. It is possible to cope with an impact load on the fixed plate 5 with a simple configuration and at a low manufacturing cost.

The receiving portion 50 is opposed to the side surface of the inner panel body 21A with a predetermined gap therebetween, that is, the receiving portion 50 is close to the side surface of the inner panel body 21A.
Is configured to be closed inside, and the inner panel body 21
Since spot welding between the inner panel main body 21A and the receiving portion 50 is difficult, the receiving portion 50 is connected to the inner panel main body 21 without performing spot welding between the inner panel main body 21A and the receiving portion 50. 21A in a close proximity to the rear seat back 3A.
When a large load is applied to the fixing plate 5 in a case where the receiving plate 50 receives an impact, the receiving portion 50 comes into contact with the inner panel main body 21A to receive the load. Buckling of the fixed plate 5 and the wheel house 2 can be reliably prevented.

[0019]

As described above, in the seat hinge mounting structure according to the present invention, the first welding flange bent at one end of the inner panel body and the second welding flange bent at one end of the outer panel body are provided. A fixing plate fixedly fixed to the inner panel main body side of a vehicle having a wheel house defined by the inner panel main body and the outer panel main body, and a seat swingably supported on the fixing plate via a hinge pin; A fixing plate, the fixing plate being fixed to a side surface of the first welding flange, a load acting on the fixing plate being applied to a boundary between the inner panel body and the first welding flange by a load acting on the fixing plate. Since the receiving portion for receiving the load is integrally formed by contacting, in other words, the first welding flange and the second welding flange of the wheel house are connected to each other. Since the fixing plate is fixed to a portion to be fixed in the combined state, the fixing plate can be fixed to the fixing plate at the same time when the two welding flanges are welded, so that the assembling workability is improved accordingly. Of course,
Unlike the related art, it is possible to reduce the manufacturing cost with a simple configuration without adding a reinforcement to the mounting portion of the fixing plate 5 or making the fixing plate 5 thick. Moreover, when a large load is applied to the fixing plate 5, the receiving portion 50 formed integrally with the fixing plate 5 is immediately attached to the boundary portion between the inner panel main body 21A having high rigidity and the first welding flange 22A. The load can be received at the boundary portion through the receiving portion 50 through contact, so that buckling deformation of the fixed plate 5 and the wheel house 2 due to this load can be reliably prevented. .

[Brief description of the drawings]

FIG. 1 is a plan sectional view showing a seat hinge mounting structure according to the present invention.

FIG. 2 is a perspective view showing a mounting portion of a fixing plate, which is a main part of the mounting structure.

FIG. 3 is a perspective view of a part of a rear casing shown as an application example of the seat hinge mounting structure.

FIG. 4 is a plan sectional view showing a conventional seat hinge mounting structure.

[Explanation of symbols]

 2 Wheel house 21A Inner panel main body 22A First welding flange 21B Outer panel main body 22B Second welding flange 4 Seat hinge 5 Fixing plate 50 Receiving part 6 Hinge pin 7 Seat mounting plate

Claims (1)

(57) [Scope of request for utility model registration] 1. An inner panel body is formed by bending at one end thereof.
Bent at the first welding flange and one end of the outer panel body
The inner welded flange is fixed to the inner
The wheel house is defined by the panel body and the outer panel body
Fixed to the inner panel body side of the vehicle
Swing freely supported on the fixed plate and the fixed plate via hinge pins
Seat hinge mounting structure with
The fixing plate is fixed to a side surface of the first welding flange.
At the same time, the first welding flange on the inner panel body is attached to the fixing plate by a load acting on the fixing plate.
A mounting structure for a seat hinge, wherein a receiving portion for receiving the load is integrally formed with the boundary portion with the flange.