JPH0439821Y2 - - Google Patents

Description

[Detailed explanation of the idea] (Industrial application field) This invention relates to the body structure of an automobile.

(Prior Art) For example, in the vehicle disclosed in Japanese Utility Model Application Publication No. 57-63785, side sills are disposed in the front-rear direction at the lower portions of both sides of the passenger compartment of the vehicle body, and the front ends thereof abut against the dash panel.

Further, side members for mounting the engine are arranged in the front-rear direction in the engine room, and the rear ends thereof abut against the dash panel.

Also, Utility Model Application Publication No. 1986-13864 and Japanese Patent Application Publication No. 54-3721
In the structure disclosed in the above publication, the rear part of the side member is bent toward the outside of the vehicle and abuts against the side or lower surface of the side sill and is connected to the vehicle.

(Problems to be Solved by the Invention) In all of these conventional technologies, the side sill and the side member are misaligned in the vehicle width direction. Therefore, the input to the side member from the suspension or strut tower, or the input to the side member in the event of a collision, is received at the joints with the dash panel and side sill, so it is necessary to strengthen these parts. Ta.

Furthermore, the reinforcements provided within the closed sections of the side members and side sills cannot be connected continuously to each other.

(Means for Solving the Problems) Therefore, the present invention was made in view of the above problems, and the side sills that form the vehicle body are extended in the front and rear direction at the lower left and right of the passenger compartment, and the side sills are located on the inside of the vehicle. A sill inner panel is formed on the sill inner panel, a sill outer panel is formed on the outside of the vehicle, and a sill reinforcement is formed between the two.The upper and lower ends of the sill inner panel, sill outer panel, and sill reinforcement are respectively welded, The panel and sill reinforcement form an inside box cross section, the sill reinforcement and sill outer panel form an outside box cross section, tires are installed in the extending direction of the side sills, and the wheel house forms the car body on the inside of the tire. The panel extends in the front-rear direction, and a side member is installed in the lower end of the wheel house panel in the front-rear direction. In a vehicle body structure in which the upper and lower ends of the side member outer and the side member outer are welded, the vertical plane of the side member outer extends in the longitudinal direction, and the side member inner has an upper flange at the top of the vertical plane and a lower flange at the upper end of the vertical plane. While welding to the lower part of the vertical surface, an inner bulge that bulges toward the vehicle interior is formed between the upper and lower flanges of the side member inner, and the inner bulge and the side member outer form a box cross section.

Then, the upper flange of the member reinforcement is welded to the upper part of the vertical surface, and the lower flange of the member reinforcement is welded to the lower part of the vertical surface. A reinforcement bulge is formed.

The side sill is formed vertically on the end side of the sill outer panel, and the end side of the sill reinforcement forms a sill reinforcement bulge that bulges toward the inside of the vehicle so as to match the end of the member reinforcement. Alternatively, the side member may be formed so that the end side of the side member outer bulges out to the outside of the vehicle, and the end side of the member reinforcement is formed substantially perpendicularly to match the end of the sill reinforcement. There is.

Then, bend the end of the side member toward the outside of the vehicle, connect the end of the side member to the side sill end, connect the sill inner panel to the side member inner, connect the sill outer panel to the side member outer, and connect the sill reinforcement to the member reinforcement. It is joined and welded to each end of the aus.

(Function) Therefore, the box cross sections of the side sill and side member can be connected continuously and changes in cross section can be minimized.

Furthermore, the member reinforcement provided within the box cross section of the side member can be seamlessly connected to the sill reinforcement provided within the box cross section of the side sill.

This increases the bending and torsional rigidity of the vehicle body.

Furthermore, there is no need to use other members to reinforce the joint between the side member and the side sill.

(Example) FIG. 1 is a perspective view showing a state in which a side sill 30 and a side member 40 are assembled to a vehicle body 10. Note that a foil house panel, which will be described later, is not shown.

Side sills 30 are disposed in the front-rear direction on the left and right lower sides of the passenger compartment 11, and are welded to both left and right edges of the floor 13.

A tire 14 is attached to the extending direction of the side sill 30, and a side member 40 is arranged in the front-rear direction on the inside of the tire 14, and is bent toward the outside of the vehicle, slightly closer to the tire than the lower part of the pillar 12.
The side member end 65 and side sill end 60 are welded to form a side member bend 69.

FIG. 2 is an exploded perspective view of the side sill 30 and side member 40 shown in FIG. 1.

Also, FIGS. 3 to 8 are cross sections taken along line A-A in FIG.
It is a figure which shows the BB cross section, the CC cross section, the DD cross section, the EE cross section, and the FF cross section.

The side sill 30 is composed of a sill inner panel 31, a sill reinforcement 33, and a sill outer panel 32 in order from the inside of the vehicle.

The sill upper end 34 and the sill lower end 35 are each formed by spot welding the above three panels, and the sill inner panel 31 and the sill reinforcement 33 form the inside box section 36, and the sill reinforcement 33 and the sill outer panel 32 forms a vehicle exterior box section 37, and the two box sections 36 and 37 form a box section 38 of the side sill 30.

The side member 40 includes a side member inner 45 on the inside of the vehicle, a side member outer 50 on the outside of the vehicle, and a member reinforcement 55 disposed between the two.
It is made up of.

The side member inner 45 has an inner bulge 48 that bulges toward the inside of the vehicle, and an upper flange 46 and a lower flange 47 that are formed perpendicularly above and below the bulge 48, and the vertical surface 51 extends in the front-rear direction. Upper end 41 and lower end 42 of side member outer 50 extending to
are welded to each other.

The member reinforcement 55 also has a reinforcement bulge 58 that bulges toward the inside of the vehicle, and an upper flange 56 and a lower flange 57 that are formed perpendicularly above and below the reinforcement bulge 58. The upper end 41 on the vertical surface 51 of the member outer 50
The side member inner 45 and the side member outer 50 form a box section 43, and within the box section 43, the member reinforcement 55 and the side member outer 5 are welded to each other.
0 forms another box cross section 53.

The surface of the side sill 30 gradually changes as the sill outer panel 32 approaches the sill outer panel end 62, and forms a vertical surface at the sill outer panel end 62.

On the other hand, as the sill reinforcement 33 approaches the sill reinforcement end 63, its surface shape changes from a substantially vertical surface to a vertical surface, and then the length in the height direction is shortened, and the sill reinforcement 33 An upper flange 76 and a lower flange 7 are provided at the upper and lower ends of the
7, and the space between the upper and lower flanges 76 and 77 bulges inward to form a sill reinforcement end 63, which matches the shape of the member reinforcement end 68 and can be welded to each other. .

The sill inner panel 31 has an upper flange 71 having a vertical surface, an upper horizontal surface 73 having a horizontal surface, and a vertical surface 74 having a vertical surface. The lower part of the surface 74 extends outward from the vehicle to form a lower flange 72 having a vertical surface, and also forms a lower horizontal surface 75 having a horizontal surface between the lower flange 72 and the vertical surface 74. 61 is matched to the shape of the member inner end 66 to enable welding.

The sill outer panel 32 is a flat plate whose length in the height direction becomes shorter as it approaches the sill outer panel end 62, and the sill inner panel 31 is a flat plate whose length in the height direction becomes longer as it approaches the sill inner panel end 61. , each is molded using a press process.

To explain the assembly procedure, first, attach the sill outer panel end 62 and the side member outer end 6.
7 are spot welded, and then the upper flange 56 and lower flange 57 of the member reinforcement 55 are spot welded between the upper end 41 and the lower end 42 on the vertical surface of the side member outer 50, respectively.

Then, the sill reinforcement end 63 is overlapped with the member reinforcement end 68, the upper flange 76 and the lower flange 77 of the sill reinforcement end 63 are overlapped with the sill outer panel end 62, and the upper and lower ends of the sill reinforcement 33 are overlapped. are spot-welded to the upper and lower ends of the sill outer panel 32, respectively, and the reinforcement bulge 58 and the sill reinforcement end 63 are plug-welded.

Next, the side member inner end 66 and the sill inner panel end 61 are spot welded, and the upper and lower flanges 46, 47 of the side member inner 45 are spot welded to the upper end 41 and lower end 42 of the side member outer 50, and the sill inner panel end 61 is spot welded. The lower ends of the upper and lower flanges 71, 72 of the inner panel 31 and the vertical surface 74 of the sill inner panel 31 are spot-welded to the upper and lower ends of the sill reinforcement 33 and sill outer panel 32, which were previously spot-welded, and the spot welding marks are aligned in the front-rear direction. Shift the parts and spot weld the three pieces together.

The above procedure is just an example, and the member reinforcement end 68 and sill reinforcement end 63 may be spot welded in advance.

Further, in this embodiment, the side sill end 60 was changed in surface to match the side member end 65, but the side member end 65 was changed in surface to match the side sill end 6.
It may be set to 0.

Furthermore, on the inside of the tire, there is a wheel house panel 23.
extends in the front-rear direction, and the lower end 24 of the wheel house panel 23 is welded to the member upper end 41 of the side member 40.

According to such a configuration, the box cross section 43 of the side member 40 can be continuously joined to the box cross section 38 of the side sill 30 without interruption, and changes in cross section can be minimized.

Further, the member reinforcement 55 provided within the box section 43 of the side member 40 can also be connected to the sill reinforcement 33 provided within the box section 38 of the side sill 30 without interruption.

This increases the bending and torsional rigidity of the vehicle body.

Furthermore, the side sill 30 also takes charge of inputs to the side member 40 due to suspension (not shown) or collision, and there is no need to use other members to reinforce the joint between the side member 40 and the side sill 30.

Further, on the inside of the tire 14, the side member outer 50 is formed with a vertical surface 51, and the upper end 41 is welded to the lower end 24 of the wheel house panel 23, so there is no unnecessary protrusion on the wheel house. You can take up a lot of space.

(Effects of the invention) According to the invention, the box section of the side sill and the box section of the side member can be connected continuously, and the reinforcement provided within the box section of the side member can also be provided within the box section of the side sill. Can be seamlessly connected to sill reinforcements.

This increases the bending and torsional rigidity of the vehicle body, and eliminates the need for reinforcing the joint between the side member and the side sill using other members.

Furthermore, since the side sill and side member have the same shape as before except for the joints, they can be connected to other parts in the same way as before.

[Brief explanation of the drawing]

Figure 1 is a perspective view showing the side sill and side member of the present invention assembled to the vehicle body, Figure 2 is an exploded perspective view of the side sill and side member, and Figure 3 is an exploded perspective view of the side sill and side member of the present invention.
The figure is a sectional view taken along line A-A in Figure 1, and Figure 4 is B in Figure 1.
-B sectional view, Figure 5 is a CC sectional view in Figure 1, Figure 6 is a DD sectional view in Figure 1, Figure 7 is an E-E sectional view in Figure 1, and Figure 8 is is a sectional view taken along line FF in FIG. 1; 10...Vehicle body, 11...Guest room, 13...Floor, 14...Tire, 30...Side sill, 31
... Sill inner panel, 32 ... Sill outer panel, 33 ... Sill reinforcement, 40 ... Side member, 45 ... Side member inner, 50 ...
... Side member outer, 55 ... Member reinforcement, 60 ... Side sill end, 65 ... Side member end.

Claims (1)

[Scope of claim for utility model registration] Side sills that form the vehicle body are installed in the left and right lower portions of the passenger compartment in the front and back direction, and the side sills consist of a sill inner panel on the inside of the car, a sill outer panel on the outside of the car, and a sill rain hood between them. The sill inner panel, sill outer panel, and sill reinforcement are welded at their upper and lower ends, respectively.
The sill inner panel and sill reinforcement form the inside box cross section, the sill reinforcement and sill outer panel form the outside box cross section, tires are installed in the extending direction of the side sills, and the car body is formed on the inside of the tires. A wheel house panel extends in the front-rear direction, and a side member extends in the front-rear direction at the lower end of the wheel house panel. In the vehicle body structure, the member inner and side member outer are welded at the upper and lower ends, respectively.The side member outer has a vertical plane extending in the longitudinal direction, and the side member inner has an upper flange at the top of the vertical plane and a lower side. A flange is welded to the lower part of the vertical surface, an inner bulge that bulges inward of the vehicle is formed between the upper and lower flanges of the side member inner, and the inner bulge and the side member outer form a box cross section. The upper flange of the member reinforcement is welded to the upper part of the surface, the lower flange of the member reinforcement is welded to the lower part of the vertical surface, and between the upper and lower flanges of the member reinforcement there is a reinforcement that bulges inward of the car within the cross section of the box. A bulge is formed, and the side sill is formed with the end side of the sill outer panel vertical, and the sill reinforcement bulges inward so that the end side of the sill reinforcement matches the end of the member reinforcement. Or, the side member is formed so that the end side of the side member outer bulges out to the outside of the vehicle, and the end side of the member reinforcement is formed approximately vertically so as to match the end of the sill reinforcement. The end of the side member is bent toward the outside of the vehicle, and the end of the side member is connected to the end of the side sill, the sill inner panel and the side member inner, the sill outer panel and the side member outer, and the sill reinforcement and the member reinforcement. A vehicle body structure characterized in that each end of the aus is joined and welded.