JPS6274775A - Assembling method for luggage boot front structure body of vehicle - Google Patents

Abstract

PURPOSE:To ensure high rigidity, with light weight, in the percel partitioning the front upper side of the luggage boot, by making possible to bring the reinforcing part comprizing the closed sectional part together with the percel body, in contact with over the percel body and a seat back side. CONSTITUTION:Upon assembling, a percel body 2 is provided with a hanging part 12, to which a reinforcing part 10 is hung through the through hole 13 of the reinforcing part 10. Besides, a seat back seat 6 is spot welded to the front side of a percel side 3 while a guide part 14 projecting inwardly in the car width direction is provided on the inner edge of the percel side 3. Next, said percel body 2 is moved down to the seat back side 6 and percel side 3 and thereafter a seat side projecting part 6a is holded between a reinforcing part under side flange 10b and a percel body front wall part 2b and then the laminated parts are spot welded (15A-15D) as the final process of the assembly.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method for assembling a trunk front vehicle body structure.

An example of a prior art trunk room front body structure is shown in "Automotive Engineering Complete Book, Volume 13, Passenger Car Body", page 25, published by Sankaido on April 20, 1980. To explain this with reference to FIGS. 4 to 7, 1 indicates a parcel, which is composed of a parcel body 2 and parcel sides 3 joined to both sides of the parcel body 2. It separates the Both the parcel body 2 and the parcel side 3 have a main plate portion 2a.
.

3a, and front wall portions 2b, 3b extending forwardly from the front edges of the main plate portions 2a, 3a. Further, a bulging portion 2c is formed on the outer edge of the parcel body 2 to overlap with the inner edge extending from the main plate portion 3a of the parcel side 3 to the front wall portion 2b. 6 indicates the seat back side, and Parseno [from the front wall 2a of the main body 2 to the front wall 3 of the parcel side 3]
b, and its lower outer edge is joined to the rear wheel house inner panel 7 to separate the front side of the trunk room 5.

By the way, the order of assembly of the parcel body 2, the parcel side 3, and the seat back side 6 that constitute the trunk front vehicle body structure is as shown in Fig. 6-7. A seat back side 6 is spot welded 8 to the back with a part of the upper part of the seat back side protruding inward in the vehicle width direction. Next, the parcel body 2 is moved downward relative to the parcel site 3 and the seat back side 6, and the bulging portion 2c of the parcel body 2 is removed.
is overlapped with the inner edge of the parcel side 3, and the front wall portion 2a of the parcel body 2 is overlapped with the portion 6a of the sort pack side 6 protruding inward in the vehicle width direction from the parcel side 3. 3. The overlapping portions of the seat back sides 6 are spot welded 9.

Problems to be Solved by the Invention However, in the front part of the trunk room and the vehicle body structure described above, thrusting force and twisting force are repeatedly input from wheels (not shown) via the wheel house inner panel 7.
Parcel body 2. The spot welds 9 at the overlapping portions of the parcel side 3 and seat back side 6 may peel off, or
Since cracks are likely to occur in the polymerized portion, the parcel body 2
．． Although the thickness of each of the parcel side 3 and seat pack side 6 was increased to increase the rigidity of the overlapping portion and the front part of the parcel body 2, the thickness of all the constituent members became too thick, which went against the weight reduction. Put it away.

Therefore, instead of increasing the thickness of all the constituent members, that is, the parcel body 28, the bar cell side 3, and the seat back side 6, the parcel body 28, as shown by the imaginary lines in FIG.
If you try to increase the rigidity by joining the reinforcement 10 to the front back of the cell body 2 and forming a closed section 11 over substantially the entire width of the cell body 2 in the vehicle width direction, the parcel body 2 and the reinforcement 10 will Unless the assembly order is changed, the sides of the reinforcement 10 will interfere with the protrusion 6a of the seat back side 6 when the parcel body 2 moves downward, making it impossible to assemble such a vehicle body structure. Also,
When adding this reinforcement 10, it is also considered to form a relief part for the seat back side 6 in the side part of the reinforcement 10 to prevent interference between the side part of the reinforcement 10 and the seat back side 6. However, in this case, the closed section 11 is separated from the joint between the parcel body 2 and the seat back side 6,
It becomes impossible to exhibit sufficient rigidity to cope with the above-mentioned thrust force and twisting force.

Therefore, the present invention provides a method for assembling a luggage compartment front vehicle body structure that can achieve weight reduction and maximize rigidity without changing the assembly order of the parcel body, parcel side, and seat back side. It is something.

Means for Solving the Problems In the present invention, first, a hanging portion is provided on the parcel body of the parcel that separates the upper front part of the trunk, and the hanging portion is provided in the parcel body in cooperation with the parcel body. A reinforcement forming a closed cross section over substantially the entire width in the vehicle width direction of the front back of the parcel is suspended via the suspension part, while a seat back side is attached to the front side of the parcel side of the parcel with a part of its upper part in the vehicle width direction. At the same time, a guide portion is provided on the inner edge of the parcel side to protrude inward in the vehicle width direction with a required clearance set between the guide portion and the rear edge of the seat back side. The parcel body on which the reinforcement is suspended is moved downward with respect to the seat back side and the parcel side while inserting the side part of the lower edge of the reinforcement into the required clearance, and the reinforcement is guided by the guide part. Rotate around the hanging part from the bend, insert the protruding part of the seat back side between the lower edge of the reinforcement and the parcel body, and then move the parcel body, parcel side, seat back side and reinforcement respectively. Join the overlapping parts of.

Embodiments Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings, with the same reference numerals assigned to the same parts as in the conventional structure.

In Figures 1 to 3, this vehicle body structure is a parcel body 2.
The parcel 1 is made up of a parcel side 3, a seat back side 6, and a reinforcement sleeve 0. This reinforcement IC is arranged astride the main plate part 2a and front wall part 2b of the parcel main body 2.
In cooperation with this, a closed cross-section portion 11 is formed over substantially the entire width in the vehicle width direction of the front back portion of the parcel body 2, specifically, the entire width in the vehicle width direction excluding the bulged portion 2c. Reference numeral 12 indicates a hanging part that protrudes downward from the back side of the flange 10a installation part which is bent at the rear edge of the reinforcement 10 in the main plate part 2a of the parcel body 2, and its tip is folded upward into a substantially U-shape. A hook portion 12a is formed. 13 is an insertion hole formed in a portion of the rear flange lOa of the L Twin Force 10 that corresponds to the hanging portion 12. 14
is a guide section provided on the parcel side 3.

To assemble the vehicle body structure according to the above embodiment structure, first, as shown in FIG. While inserting the reinforcement lO into the parcel body 2 and suspending it, spot welding 8 the seat back side 6 to the front side of the parcel side 3 with a part of its upper part protruding inward in the vehicle width direction. A guide portion 1 protruding inward in the vehicle width direction from the inner edge of the
4 and the rear edge of the seat back side 6 with a required clearance δ set therebetween. Next, the parcel main body 2 on which the reinforcement 10 is hung is bent at the lower edge of the reinforcement 10, and the side part of the flange 10I is bent to the required clearance between the guide part 14 and the side 6. While inserting the reinforcing part 10 into the seat back side 6 and the parcel side 3, the reinforcing member 10 is guided by the guide part 14 and rotated about the hanging part 12, as shown in FIG. As shown in (B), the protrusion 6a of the seat back side 6 is inserted between the lower flange 10b of the reinforcement 10 and the front wall 2b of the parcel body 2, and the The back surface of the bulging portion 2c overlaps the inner edge of the parcel side 3, and the side back surface of the front wall portion 2a of the parcel body 2 overlaps the protruding portion 6a of the seat back side 6, and the flange tab on the lower side of the reinforcement 1θ are superimposed on the back surface of the seat back side 6 and the front wall portion 2b of the parcel main body 2, and the rear flange 10a of the reinforcement 10 is superimposed on the back surface of the main plate portion 2a of the parcel main body 2, and these parcel main bodies 2. Parcel side 3. The overlapping portions of the seat back side 6 and the reinforcement 10 are spot welded 15A, 15B, 15c, and 15D.

Effects of the Invention According to Kinobu and Akira, the assembly process is one step: joining the parcel side and seat back side, and moving the parcel body downward relative to the parcel side and seat back side. Since the reinforcement that constitutes the closed section can be joined to the parcel body and the seat back side without changing the parcel body, the thickness of the parcel body, parcel side, and seat back side can be increased. This has the practical effect of providing a vehicle body structure that is sufficiently rigid to withstand uplifting forces and torsional forces transmitted from the wheels and around the wheel house inner panel. There is.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram showing an embodiment of the present invention, (A
) indicates a state in which the assembly is in progress, and (B) indicates a state in which the assembly is completed. Figure 2 is a perspective view showing the same embodiment in the middle of assembly, Figure 3 is a perspective view showing the completed assembly of the same embodiment, and Figure 4 is a rear perspective view showing the area around the front of the conventional trunk compartment. Fig. 5 is a perspective view showing the main parts of a conventional trunk room front body structure, Fig. 6 is a perspective view showing the main parts of the conventional car body structure in the middle of assembly, and Fig. 7 is a perspective view showing the main parts of the conventional car body structure in the middle of assembly. (A) is a schematic diagram showing one order of assembly of the main parts of the conventional vehicle body structure;
(B) shows the state in the middle of assembly, and (B) shows the state after assembly is completed. ■...Parcel, 2...Parcel body, 3...°Parcel side, 5...Trunk room, 6...Seat back side, 6a...Protrusion, 10...Reinforce, jl...・Closed section, 12・・Suspended section, 14・
...Guide section. Other 2 people - ~ rQ Me Φ Figure 7 (A) (B)

Claims (1)

[Claims] First, a hanging part is provided on the parcel body of the parcel that separates the front upper side of the trunk room, and a closed cross-section part is provided in the parcel body in cooperation with the parcel body over substantially the entire width in the vehicle width direction of the front back of the parcel body. while suspending the reinforcement that constitutes the parcel through the suspension part, a seat back side is joined to the front side of the parcel side of the parcel with a part of its upper part protruding inward in the vehicle width direction, and A guide part that protrudes inward in the vehicle width direction is provided on the inner edge of the vehicle with the required clearance set between the guide part and the rear edge of the seat back side, and then the parcel body with the reinforcement suspended is placed between the While inserting the side part of the lower side edge into the required clearance, move it downwardly relative to the seat back side and the parcel side, rotate the reinforcement around the hanging part while guiding it with the guide part, and A trunk room characterized in that a protruding portion of a seat back side is sandwiched between a lower edge of a reinforcement and a parcel body, and overlapping portions of the parcel body, the parcel side, the seat back side, and the reinforcement are joined. How to assemble the front body structure.