JPS5926369A - Front chassis structure of car - Google Patents

Abstract

PURPOSE:To improve the structural strength of the chassis front part by forming closed sections vertically in twelve stages on the side part of a dash panel which constitutes the front wall of a car interior. CONSTITUTION:On the upper side of the side-edge part of a horizontal part 1a of a dash panel 1, a cowling side upper 2 and a wheel apron reinforcement 3 which extend in the longitudinal direction of chassis are arranged so as to be opposed each other, and thus an upper-side closed section 4 is formed. Though a hinge pillar 8 for installing a door hinge is connected to the lower part of a front pillar 5, the upper part of a cowling side 11 which is arranged in front of the outer 10 of said pillar 8 is bent inwardly, and the vertical part 14b of said bent part 14 is connected to the dash panel 1. A lower closed section is formed with said bent part 14, dash panel 1, and a gusset 15 outside the cowling side 11.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a 4M front body of an automobile.

In recent years, automobile weight reduction and combustion
Due to the fact that reduction in fuel consumption has become a major issue, the miniaturization of automobiles has been promoted, and the development of a width commonly referred to as a liter car has been carried out. In this type of car C, the method of reducing the thickness of the body plate and reinforcing only the necessary parts is adopted in order to achieve l'ff m.

On the other hand, in automatic mode, the requirement to protect the occupants of the J3 in the event of a collision cannot be fully satisfied.

This sleeping plan is easy to carry out in large and medium-sized cars because the length of the front part of the passenger compartment and the main part is relatively good, and the overall rigidity is high (17). In a small car, there are limitations on the size of the vehicle, the passenger compartment cannot be made smaller to avoid compromising comfort, and it is not possible to have the same structure as a large car. Strength can be increased by reducing the plate thickness by 1 inch, but in small cars, the output of the engine that can fit 1 inch on the rail is limited, so it is not possible to increase the plate thickness. There was a problem that it conflicted with weight reduction.

Therefore, especially in the case of a head-on collision (the front end of the width is 1.
Conventionally, in order to prevent deformation of the passenger compartment (when moving), the cowl side upper and the wheel nib were placed near both measuring parts of the cowl that is attached to the front of the vehicle body, in accordance with the rule on the tush panel.
A closed cross-section structure in which the 1-in-reinf A-smen 1-and are joined extends forward from the front pillar, and each has a J
: constitutes a reinforcing structure, but such a closed cross section 4
As for Mm), the connections between N1 and Pillar were weak, which caused problems in terms of preventing collisions.

Now, in order to solve such a problem, 1. Closing note I
I) Wheels covering the ii′rri structure - Shibu III
By connecting the reinforcement A-smen 1 to -7 [1 pillar etc. with the galette gray 1-, 411
Chinoku Special Public Service to increase the strength of the single structure Showa 5/I-1/
1005'i''S publication p, +, H) has been proposed.

However, the above-mentioned force hit plays 1 to 1 simply connect the front pins with the wheels, the bronze reinforcement A, the smen 1, and the front pin, so they were not sufficiently strong.

The present invention has been made in view of this point, and has two upper and lower closed sections 47. By providing a structure, the purpose of this design is to improve the strength of Ml 311, as well as to integrally form the outer member and increase the effectiveness of mass production.

For this purpose, the configuration of the present invention (with the dash panel, the cowl side upper and the wheel apron reinforcement men on the two sides of the dash panel)
J is connected to the pillars 1 to 1 to form a closed cross section on the side, while the front pillar outer and the hinge pillar outer are integrally connected to the cowl side disposed in front of the hinge pillar outer. The two parts of the "- distribution ullioid" are bent inward, and are adjacent to the lower side of the upper closed section by the bent part 177 and the grooves 1~ located on the outside of the dash panel and cowl side. The fact that a lower closed cross section is formed is confirmed by the 4!1 characteristic,
As a result, the structure of the front part of the vehicle body is improved by the two-stage closed cross section on the upper side and the lower side, and the mass production efficiency is improved by integrally forming the outer member.

Hereinafter, the 5D light will be explained in detail with reference to the drawings and examples.

Figure 11. In Fig. 5, reference numeral '1 denotes a dash panel that separates the passenger compartment from the engine room and constitutes the front wall of the middle compartment, and the dash panel 1 extends substantially downward from the upper part of the dash panel. Turn the horizontal part 1a to the right and touch the side edge r of the horizontal part 1a.
On the at-lx side, there is a cowl that extends in the front and back direction of the vehicle → a nod Noah, a 2nd wheel nib, and a 1-in rainf A-smen!・3 and 3 are arranged in such a way that the cowlry id and the brim 2 are located on the inside. 1. The above force Ulloid asper 2 and wheel nib 1-
The upper ends of the first reinforcement A-smen 1 to 3 are joined to each other, while the lower ends are connected to the dash panel 1 (
It is joined to the horizontal part 1a), and therefore J,
An upper closed section 4 is formed extending in the longitudinal direction. The rear pant portion of the upper closed section 4 is connected to the front 1 to the pillar 5 described above.

Reference numeral 5 denotes front pillars 1 to 1 which are disposed on both sides of the front of the passenger compartment so as to extend in the vertical direction, and the front pillars 5 (with a cross-sectional shape protruding toward the J1!1 surface lj side)
"The front door inner 6 and the front 1-pillar 7 outer 7 which protrude outward from the vehicle body and have an Iζ cross-sectional shape are joined to each other and closed."
It is formed in a 111-sided shape. A hinge pillar 8 for removing the door hinge is connected to the lower part of the door pillar 5.
A hinge pillar inner 9 whose upper end is connected to the lower end of the front pillar inner 6, and a front pillar outer 7 to the front pillar 1.
The hinge pillar outer 10 is formed integrally with the lower part of the hinge pillar outer 10, and by joining the two together, it is formed into a closed cross-sectional shape that communicates with the open field 1 of the heavilar 5. has been done.

Furthermore, a cowl nod 11 formed by extending the hinge pillar outer 10 in the forward direction is integrally formed at the front portion of the hinge pillar outer 10. In other words, the front pillar outer 7, the hinge pillar outer 10, and the cowl lead '1'1, which are the outer members, are an integral plate member 1.
C is formed by 2.

Incidentally, the front end of the cowl side 11 is joined to the side end of the dash panel 1 (as shown in FIG. 3).

The upper part of the cowl lid 1'1 (the front part of the plate member 12 above the hinge pillar 5) bulges out to the outside of the vehicle body at the -1 section J.
Fold the bulge part '13 inward to the inside of the vehicle. A bent portion 14 is formed by bending.The bent portion 14 includes a horizontal portion 14a extending in the horizontal direction, and an upper end extending vertically upward from the inner end of the horizontal portion 14, and the upper end thereof is connected to the cowl of the dash panel 1. Reid upper 2
Diagonal weight ii: i part 1 joined to the lower surface of the joint with
/lb.

Further, a substantially triangular blade 1-15 is provided on the outside of the bent portion 1/1 of the force guide 11. -L end (hypotenuse part) (J) of said gassets 1 to 15
It is joined to the lower surface of the joints with the smen 1 to 3, and is connected to the bulge part 13 of the urside 11 from the lower end part number. Further, the rear end portion of the gusset 15 is extended rearward so as to cover the upper hinge mounting portion 10a of the hinge pillar outer ′10, and the rear end portion of the extension portion 16 is the rear end of the hinge pillar outer 7 outer 10. 4M is formed to hold the upper hinge part iQa, which is superposed and connected to the above cowl side 11.
Bent part ゛1/I and dash panel 1 gap h 1
A lower closed cross section '17 is formed adjacent to the lower surface of the upper open cross section 4 of J: 5 and 5.

In addition, 18 is a hinge reinforcement member 1~ which is Φ-fitted to the inner side of the hinge mounting portion 10a according to the "10:1" rule, and the hinge reinforcement member 18 is an independent plate member. However, in order to avoid reducing the number of parts, as shown in Fig. 6 - J: sea urchin] 1
] - Extend the distal end of the pillar inner 6' to the ":" part of the hinge pillar 8, and connect the central part of the extension part 19 to the upper hinge part of the hinge pillar outer 10 (s1 part 10).
bulge to the inner side of a (hinge reinforcement
Even if −'+8' is formed integrally, J: is not possible.

Also, 20 is cowl, 21 is] 1-1 tofuenta, 2
2 is the lid, 23 is the upper hinge removal part of the hinge pillar outer 10 on the hinge pillar inner 9 (j1 part - 34 according to IQa) (installation) I is the hinge removal work part 11.

Therefore, M+9! I'm here
(A two-stage upper and lower closed cross section (14 structure) is formed on the side of the Darashi-1 panel 1, consisting of the -L side part 3 and the lower closed cross section 4.17, and between the lower side 11 is Freon [・
Since it is bridged at the corner of the connection between the pillar 5 and the ground side 1 side 4, it can be used for effective ura strength of the double opening 11i side 4.17 (Front! ~ Pillar 5 :bit carrot pillar 8
By increasing the strength of the vehicle, it is possible to improve the strength of the front part of the vehicle by 1m or more.

Also, the lower side 111i surface 17 is t on the inside with respect to the Darashi-2 panel 1, the vertical portion of the bent portion 14 of the L cowl lid 11 is + 411 Jl end is n on the outside
The upper ends of Rutsu 1 to 15 are each joined to form 18 double seals, so water such as mountain water can flow inside the vehicle.
It is rarely accepted, and 10,000-bottom closed...I side 1
Even if water gets inside 7, cowl light 11 and gusset 1
5 and 1 to the outside, which is useful for preventing water leaks.

Furthermore, since the outer members, such as the front 1, the front 1, the outer hinge pillar 10, and the cowl lid 11, are formed by gluing the integral plate member 12t, it is difficult to connect them and finish the joints. You can save work, etc.
C is to simplify the work of grouping and improve the mass production effect.
Wear.

As explained above, according to the present invention, 1. K. By forming a closed cross section of upper and lower sections on the side of the dash panel,
If the front of the car body can be improved in strength to 11, the two-hand seal structure of the lower closed section and the width J1 water structure will be effective in preventing water leakage. However, ,
Since the outer member is integrally formed, the phase ('I'
l'f: It is possible to improve business efficiency a5 and mass production effect.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a perspective view of the front part of an automobile body, FIG. cI on the ■-■ line in the diagram
3. Figure 4 is a sectional view taken along line IV-IV in Figure 1, Figure 5 is an exploded perspective view, and Figure 6 is a diagram equivalent to Figure 5, with modifications. be. 1...Touch panel, 2 Kowl 1 Noid atsupa, 3...Wheel nib] ln rain oath men 1-
14... Lower closed section, 5... Freon 1-pillar, 7
...Fun L1]-pillar outer, 8...hinge pillar, 10...hinge pillar outer, 1゛1...cowl lid, 12...(reverse part (j, 14...bent part, 15...Sword set 1-1'17...Lower closed section. Fig. 5 Fig. 4

Claims (1)

[Claims] (1) On the side of the tarash panel, an upper closure 1()i is formed which is connected to the front pillar by the tarash panel, the cowl relay upper and the wheel front reinforcement. , the front wing aractor, the hinge pillar outer, and the cowl rest disposed in front of the hinge pillar outer are integrally formed on the root part 4A, and a part of the cowl lid (
The bent portion, the cassette 1 panel, and the cassette 1 located outside the cowl lid form a lower closed cross section adjacent to the lower side of the upper open cross section. The front R1 body structure of the car is characterized by