JPS642865Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to the body structure of an automobile, and is primarily aimed at improving means for reinforcing the front part of the vehicle body.

BACKGROUND TECHNOLOGY At the front end of an engine compartment formed in the front part of an automobile body, left and right radiator panel sides are connected and fixed to the front end edges of left and right wheel aprons and left and right frames fixed to the wheel aprons. At the same time, the left and right radiator panel sides are connected at the top and bottom by a radiator panel top and a front cross member, respectively,
Normally, the radiator is installed in a space surrounded by the left and right radiator panel sides, radiator panel tops, and front cross member (for example, Utility Model No. 55-120573
(see publication).

Problems to be Solved by the Invention In the front body structure of an automobile constructed as described above, the side frame, each having a box-shaped cross section, is connected to the radiator panel side and front cross member by crossing them. Conventionally, multiple cassettes are used to obtain the necessary strength for these joints.
The number of parts is large, and the assembly and joining work is complicated and troublesome.

The present invention aims to address the problems of the conventional structures as described above.

Means for Solving the Problems That is, the present invention has a front body structure in which a front cross member is bonded and fixed to the lower surface of the front end of a side frame, and the rear longitudinal surface, the lateral surface, and the front rising surface are continuously bent. The rear vertical surface of the gusset is bonded and fixed to the front surface of a towing hook bracket provided downwardly protruding from the side frame and the rear surface of the front cross member, and the lateral surface is bonded and fixed to the lower surface of the side frame and the upper surface of the front cross member. , the front rising surface is bonded and fixed to the rear surface of the side of the radiator panel and the front edge of the side frame.

By adopting the above structure, the present invention firmly supports both the bending and torsional loads of the two box-shaped sections that intersect at one gusset, that is, the side frame and the front cross member, and has a remarkable joint rigidity. This is an improvement.

Example The present invention will be explained below with reference to the accompanying drawings.

In the figure, 1 is a wheel apron forming the side wall of the engine room, and 2 is the wheel apron 1.
A side frame 3 is bonded and fixed to the vicinity of the lower edge and forms a box-shaped cross section in the front-rear direction, 3 is a radiator panel side that is bonded and fixed to the front edge of the wheel apron 1 and the frame 2, and left and right radiator panel sides 3 , 3 are connected at their upper parts by a radiator panel top (not shown) and by a front cross member 4 at their bottom, and are connected to the left and right radiator panel sides 3, 3, a radiator panel top (not shown), and a front cross member. A radiator (not shown) is disposed in the space surrounded by 4, as in the conventional structure.

The front cross member 4 includes an outer panel 4a and an inner panel 4 at the lower edge of the radiator panel side 3.
It is formed into a box-shaped cross-sectional shape by bonding and fixing with b,
The front cross member 4 has its upper surface bonded and fixed to the lower front surface of the side frame 2.

A tow hook bracket 5 is provided on the front lower surface of the side frame 2 and projects downward.

Reference numeral 6 denotes a gusset, and the gusset 6 gently connects a surface 61a that is bonded and fixed to the front surface of the towing hook bracket 5, a surface 61b that is bonded and fixed to the rear surface of the front cross member 4, and the surfaces 61a and 61b. a rear vertical surface 61 consisting of a surface 61c, a horizontal surface 62 bent forward from the upper part of the rear vertical surface 61 and fixed to the lower surface of the side frame 2 and the upper surface of the front cross member 4; The front rising surface 63 is bent upward from the front part of the radiator panel side 3 and is fixed to the rear surface of the radiator panel side 3 and the front edge surface 2a of the side frame 2.
It is integrally formed in a shape having.

The front rising surface 63 of the gusset 6 is inserted between the mating surfaces of the radiator panel side 3 and the side frame 2, and the lateral surface 62 is inserted between the joint between the lower surface of the side frame 2 and the upper surface of the front cross member 4. In the sandwiched state, these are fixed by spot welding, and the front rising surface 63, the horizontal surface 62, and the rear vertical surface 61 of the gusset 6 are
1b is joined to the upper surface of the radiator panel side 3 and the front cross member 4 at a position displaced toward the center of the vehicle body from the joint fixation part with the side frame 2 on the rear surface, and fixed by spot welding, and the surface of the rear vertical surface 61. 61a is joined to the front surface of the towing hook bracket 5 and fixed by spot welding to connect the side frame 2, radiator panel 3, and front cross member 4.

Effects of the invention According to the invention configured as described above, the three consecutive surfaces of the rear vertical surface 61, the horizontal surface 62, and the front rising surface 63 of the gusset 6, which is a single component, form two box-shaped parts that intersect. It firmly supports both the bending load and torsional load of the frame 2 and the front cross member 4, which are cross sections, and significantly improves the joint rigidity between the frame 2 and the front cross member 4, as well as the radiator panel side 3. Not only is this extremely effective in preventing vehicle body vibration and noise, but the gusset 6 also serves as reinforcement for the towing hook bracket itself, reducing the number of parts and simplifying assembly and joining work. Furthermore, it is possible to reduce the cost and bring about a great practical effect.

[Brief explanation of the drawing]

Figure 1 is a perspective view of essential parts showing an embodiment of the present invention, Figure 2 is a sectional view taken along line A-A in Figure 1, and Figures 3 and 4 are viewed from the directions of arrows B and C in Figure 1, respectively. FIG. 1...Wheel apron, 2...Side frame, 3...Radiator panel side, 4...Front cross member, 5...Tow hook bracket, 6...Gusset.

Claims (1)

[Scope of utility model registration request] A front vehicle body structure in which a radiator panel side is bonded and fixed to the front edge of a side frame that is bonded and fixed to the wheel apron, and a front cross member at the lower part of the radiator panel side is bonded and fixed to the lower surface of the front end of the side frame, The rear vertical surface of a gusset whose rear longitudinal surface, lateral surface and front rising surface are continuously bent is bonded and fixed to the front surface of a towing hook bracket provided downwardly protruding from the side frame and the rear surface of the front cross member, An automobile body structure characterized in that a side surface is bonded and fixed to a lower surface of a side frame and an upper surface of a front cross member, and a front rising surface is bonded and fixed to a rear surface of a radiator panel side and a front end edge of a side frame.