JP5063470B2 - Radiator mounting structure for vehicles - Google Patents

Description

  The present invention relates to an improvement in a radiator mounting structure for a vehicle.

As a conventional radiator mounting structure for a vehicle, a radiator is attached to a front portion of a vehicle body via a bracket, and when there is a collision object from the front of the vehicle, the upper end of the radiator is easily detached from the bracket (for example, Patent Literature 1), and the bracket is easily deformed and the attachment portion of the radiator to the bracket is easily rotated back and forth (see, for example, Patent Document 2).
Japanese Patent No. 3085945 Japanese Patent No. 3642754

3 and 4 of Patent Document 1 will be described with reference to FIGS. 10 (a) and 10 (b) below. In addition, the code | symbol was reassigned.
FIGS. 10A and 10B are explanatory views showing a conventional radiator mounting structure for a vehicle.
In (a), a bracket 202 is attached to an upper cross member 201 on the vehicle body side, and an upper end portion of a radiator 204 is attached to the bracket 202 via an upper support rubber 203.

  In (b), a support stay 207 is attached to a lower cross member 206 on the vehicle body side, and a lower end portion of a radiator 204 is attached to the support stay 207 via a lower support rubber 208.

FIG. 3 of Patent Document 2 will be described with reference to FIG. In addition, the code | symbol was reassigned.
FIG. 11 is a perspective view showing a conventional radiator mounting structure for a vehicle. One end of a stay 212 is attached to the upper part of the front bulkhead 211, and the upper end of the radiator 213 is supported by an intermediate part of the stay 212. The other end is attached to an extension 216 of the side stay 214 constituting the front bulkhead 211 with a bolt 217 extending in the vehicle width direction.
The lower end of the radiator 213 is attached to the lower part of the front bulkhead 211 via a rubber mount.

In the above-mentioned Patent Document 1, the bracket 202 needs to be long in the front of the vehicle in order to make the radiator 204 easily fall backward, and the radiator 204 is arranged on the front side, so that the total length of the vehicle becomes large.
Further, in Patent Document 2, the shape of the stay 212 is complicated, and it is difficult to set a load for deforming the stay 212. Therefore, the cost of the stay 212 increases.

Further, in both Patent Document 1 and Patent Document 2, since the lower end of the radiator is fixed to the vehicle body frame side, the amount of backward tilting and retreating of the radiator is restricted, and these are also controlled by the engine behind the radiator. The stroke amount for absorbing the collision energy at the front of the vehicle body is restricted.
An object of the present invention is to secure a stroke amount for absorbing collision energy with a simple structure without increasing the overall length of the vehicle.

  In the radiator mounting structure for a vehicle in which the upper end portion of the radiator is attached to the upper portion of the front bulkhead via the upper bracket, the upper bracket is opened to the upper end mounting portion to which the upper end portion of the radiator is attached. A projection that protrudes upward so as to extend in the vehicle width direction adjacent to the mounting hole in order to promote buckling upward of the upper end mounting portion when a load is input from the front of the vehicle to the mounting hole. The upper end mounting portion is separated upward from the upper end portion of the radiator by a load input to the upper bracket at the time of a frontal collision of the vehicle.

  When a collision force acts on the radiator from the front of the vehicle during a frontal collision of the vehicle, the upper mounting portion buckles upward along the convex bead that is formed to protrude in the vehicle width direction adjacent to the mounting hole. . As a result, the upper mounting portion is detached upward from the upper bracket upper end so that the upper end of the radiator can be removed from the mounting hole of the upper bracket, and the upper end of the radiator falls backward with the lower end of the radiator as a fulcrum.

In this way, the upper bracket is bent upward and the upper end of the radiator is moved rearward. Therefore, it is not necessary to extend the upper bracket forward of the vehicle, and a stroke amount for absorbing collision energy is secured. The
Furthermore, the upper bracket has a simple structure in which a mounting hole and a convex bead are formed, and an increase in cost can be suppressed.

  According to a second aspect of the present invention, an upper taper portion that promotes backward movement of the upper end portion of the radiator when the upper end portion of the radiator moves rearward of the vehicle at the time of a frontal collision of the vehicle is formed on the front bulkhead upper constituting the upper portion of the front bulkhead Is provided.

  Since the upper taper portion is provided in the front bulkhead upper, when the collision force acts on the radiator during the frontal collision of the vehicle and the radiator upper end moves to the rear of the vehicle, the amount of movement of the radiator upper end increases.

  According to a third aspect of the present invention, in the radiator, a lower end portion of the radiator is attached to the vehicle body side via a lower end attachment portion, and the lower end attachment portion extends inward in the vehicle width direction from the vehicle body side, and the pin is rotatable. It is made up of a receiving part provided on the radiator side for supporting, and this receiving part is formed in a C-shaped cross section, and when the upper end of the radiator falls backward, the downward external force acting on the radiator A C-shaped opening is formed at a position where the receiving portion can be detached from the pin.

  When the upper end of the radiator falls to the rear of the vehicle at the time of a frontal collision of the vehicle, the C-shaped opening of the receiving portion moves above the vehicle body side pin constituting the lower end mounting portion. When a downward external force is applied to the radiator in this state, the receiving portion is detached from the pin so that the pin moves relative to the C-shaped opening, and the lower end of the radiator is dropped from the vehicle body side.

  According to a fourth aspect of the present invention, the front bulkhead lower that forms the lower portion of the front bulkhead has a front lower lower taper portion that facilitates dropping of the radiator when the upper end of the radiator moves rearward in the event of a frontal collision of the vehicle. Is provided.

  The lower taper provided on the front bulkhead lower causes a collision force to act on the radiator during a frontal collision of the vehicle, the radiator upper end moves to the rear of the vehicle, and when a downward external force acts on the radiator, the radiator The lower end is urged to drop off.

  In the invention according to claim 1, the upper bracket is provided with a mounting hole opened in the upper end mounting portion to which the upper end portion of the radiator is mounted, and when the load is input to the upper bracket from the front of the vehicle, In order to promote buckling, a convex bead is formed so as to protrude in the vehicle width direction adjacent to the mounting hole, and the upper end mounting portion is attached to the radiator by a load input to the upper bracket at the time of frontal collision of the vehicle. Since the upper bracket is separated upward, the upper bracket can ensure the vibration resistance of the radiator during normal driving, and in the event of a frontal collision of the vehicle, the upper bracket is raised upward from the convex bead. The upper bracket can be easily detached from the upper end of the radiator by encouraging buckling, and the upper end of the radiator is moved rearward to make the collision energy It is possible to secure the vehicle body front of the stroke amount for over absorption.

  Further, it is not necessary to extend the upper bracket to the front of the vehicle as in the prior art, so that the overall length of the vehicle can be prevented. Further, the upper bracket is a member having a simple structure in which mounting holes and convex beads are formed. Because there is, cost can be held down.

  In the invention according to claim 2, the upper bulkhead portion that constitutes the upper portion of the front bulkhead has an upper tapered portion that promotes backward movement of the upper end portion of the radiator when the upper end portion of the radiator moves rearward in the event of a frontal collision of the vehicle. Therefore, the amount of movement of the upper end of the radiator to the rear can be increased, and the stroke amount of the front part of the vehicle body necessary for absorbing the collision energy can be easily ensured.

  In the invention according to claim 3, the lower end portion of the radiator is attached to the vehicle body side via the lower end attachment portion, the lower end attachment portion extends inward in the vehicle width direction from the vehicle body side, and the pin is rotatable. It is made up of a receiving part provided on the radiator side for supporting, and this receiving part is formed in a C-shaped cross section, and when the upper end of the radiator falls backward, the downward external force acting on the radiator Since the C-shaped opening is formed at a position where the receiving part can be detached from the pin, when the front end of the vehicle collides, the upper end of the radiator falls backward, and when the downward external force acts on the radiator, the receiving part is detached from the pin That is, the lower end portion of the radiator can be removed from the vehicle body side, and the deformation of the front portion of the vehicle body can be prevented from being blocked by the radiator. Therefore, the stroke amount for absorbing the collision energy at the front of the vehicle body can be further ensured.

  In the invention according to claim 4, the front bulkhead lower constituting the lower part of the front bulkhead has a front lowering lower taper portion that facilitates dropping of the radiator when the upper end of the radiator moves rearward in the event of a frontal collision of the vehicle. Since the lower taper part can urge the lower end of the radiator to drop off, and the entire radiator can be reliably dropped off, the stroke amount for absorbing the collision energy at the front of the vehicle body is further secured. Can be easier.

The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. The drawings are viewed in the direction of the reference numerals.
FIG. 1 is a perspective view showing a front portion of a vehicle having a radiator mounting structure according to the present invention (an arrow (FRONT in the figure represents the front of the vehicle; the same applies hereinafter)), and is provided at the front portion of the vehicle body. A radiator 12 and a condenser 13 for an air conditioner disposed in front of the radiator 12 are attached to the front bulkhead 11.

  The front bulkhead 11 connects the bulkhead upper 21 constituting the upper portion, the bulkhead lower 22 disposed below the bulkhead upper 21, and both ends of the bulkhead upper 21 and the bulkhead lower 22. The left and right front bulkheads 23, 24 are attached to the left and right wheel house upper members 26, 27, respectively, and the lower part extends in the front-rear direction. Each is attached to a side frame (not shown). 31 and 32 are damper housings provided on the left and right sides of the engine room.

  FIG. 2 is a side view (partially sectional view) showing a radiator mounting structure according to the present invention. Specifically, a radiator mounting portion 40 for mounting the radiator 12 and the capacitor 13 to the front bulkhead 11 includes: An upper bracket 41 attached to the bulkhead upper 21 of the front bulkhead 11 to support the upper ends of the radiator 12 and the capacitor 13, and a lower end attachment portion 42 to which the lower ends of the radiator 12 and the capacitor 13 are attached. It consists of. Reference numeral 43 denotes a shroud attached to the rear portion of the radiator 12.

The bulkhead upper 21 includes a flat upper panel 45 and a lower panel 46 attached to the lower portion of the upper panel 45.
The lower panel 46 includes a front flange 51, a front inclined portion 52 extending obliquely downward and rearward from the rear end of the front flange 51, a rear inclined portion 53 extending obliquely upward and rearward from the rear end of the front inclined portion 52, and the rear The rear rising portion 54 rises upward from the inclined portion 53 and the rear flange 56 extends rearward from the rear rising portion 54. The front flange 51 and the rear flange 56 are attached to the lower surface of the upper panel 45. The upper bracket 41 is attached to the front inclined portion 52.

The bulkhead lower 22 includes a lower panel 61 and an upper panel 62 attached to the upper portion of the lower panel 61.
The lower panel 61 includes an upper flange 64, a front inclined portion 65 extending obliquely forward and downward from the lower end of the upper flange 64, a downward extending portion 66 extending downward from the lower end of the front inclined portion 65, and the downward extending portion. A bottom portion 67 extending rearward from the lower end of 66, an upper extending portion 68 extending upward from the rear end of the bottom portion 67, and a rear flange 69 extending rearward from the upper end of the upper extending portion 68.

  The upper panel 62 includes an upper flange 71, a rear inclined portion 72 extending rearward and obliquely downward from the lower end of the upper flange 71, and a rear flange 73 extending rearward from the rear end of the rear inclined portion 72. The rear panel 73 is attached to the upper flange 64 of the lower panel 61, and the rear flange 73 is attached to the rear flange 69 of the lower panel 61.

  Here, reference numeral 75 denotes a front grille, 76 denotes a rib provided integrally with the rear portion of the front grille 75 and is applied to the upper bracket 41, 77 denotes a hood, and 78 denotes a vertical line (a line passing through an axis 105 described later). ). In the figure, the vertical line 105 also passes through the axis of the upper protruding pin 12a of the radiator 12.

  FIG. 3 is a perspective view showing a main part of the mounting structure of the upper end of the radiator according to the present invention. The upper bracket 41 supports the upper ends of the radiator 12 and the capacitor 13, more specifically, the left and right ends of the upper end. Therefore, a pair of left and right upper projection pins 12 a provided at the upper end of the radiator 12 and a pair of upper elastic portions 13 a provided at the upper end of the capacitor 13 are formed by a pair of left and right upper brackets 41. Supported.

  FIG. 4 is a cross-sectional view showing the attachment structure of the upper end portion of the radiator according to the present invention. The upper bracket 41 is bent from the inclined portion 81 attached to the front bulkhead 11 (see FIG. 2) and the upper end of the inclined portion 81. A flat portion 82 that extends forward, a rear hanging portion 83 that is bent from the front end of the flat portion 82 and extends downward, a radiator support portion 84 that is bent from the lower end of the trailing portion 83 and extends forward, and a rib 76. To receive an external force from the front end of the radiator support portion 84, and a rib receiving portion 86 that extends obliquely forward and downward, and is bent downward and obliquely downward from the lower end of the rib receiving portion 86 to the radiator 12 side. A front inclined portion 87 that approaches, a front hanging portion 88 that is bent from the front inclined portion 87 and extends downward, and is folded from the lower end of the front hanging portion 88. A capacitor support portion 89. forwardly extending Te Gerare.

  The radiator support portion 84 includes a rear through hole 84a opened to fit the elastic member 91 fitted to the upper end protruding pin 12a of the radiator 12, and convexes formed on both sides of the rear through hole 84a in the vehicle width direction. This is the portion where the shaped beads 84b, 84b (only one reference numeral 84b is shown. See also FIG. 3).

  The bead means a portion formed in a convex shape or a concave shape, and here, by forming convex beads 84b and 84b on the upper surface 84c of the upper bracket 41, an external force acts on the radiator support portion 84 from the front of the vehicle. In this case, the radiator support portion 84 is easily buckled and deformed upward from the convex beads 84b and 84b.

The rib receiving portion 86 is a portion protruding forward from the front hanging portion 88 so that the rib 76 can be easily hit.
The capacitor support portion 89 is a portion in which a front through hole 89a into which the rubber upper elastic portion 13a of the capacitor 13 is fitted is formed.

  FIG. 5 is a perspective view showing a main part of the radiator lower end mounting structure according to the present invention. The lower end mounting part 42 supports the lower end parts of the radiator 12 and the capacitor 13, more specifically, the left and right end parts of the lower end part. The vehicle body side bracket 94 is attached to the front bulkhead 11, specifically the side bulkheads 23 and 24 (only one reference numeral 23 is shown) and extends in the front-rear direction. A fixing pin 96 attached to the vehicle body side bracket 94 such that its axis extends in the vehicle width direction, a radiator side bracket 97 attached to the lower end side surface 12c of the radiator 12 and the lower end side surface 13c of the capacitor 13, and It is attached to the radiator side bracket 97 so that its axis extends in the vehicle width direction and is fitted to the fixing pin 96 so as to be rotatable. Pin receiving consisting of member 98 Metropolitan.

  FIG. 6 is a side view of the main part showing the mounting structure of the lower end of the radiator according to the present invention. The radiator side bracket 97 (part whose outline is indicated by a thick line) connects the lower ends of the radiator 12 and the capacitor 13. Radiator mounting plate portion 97a attached to the lower end side surface 12c of the radiator 12, capacitor mounting plate portion 97b attached to the lower end side surface 13c of the capacitor 13, the radiator mounting plate portion 97a and the capacitor It consists of the step part 97c (refer also FIG. 5) extended in the vehicle width direction which connects each of the attachment plate part 97b.

  The pin receiving member 98 is a member having a C-shaped cross section, and the C-shaped opening 98a faces upward or obliquely forward when the radiator 12 and the capacitor 13 are rotated clockwise around the fixed pin 96. At the same time, when the external force is applied to the radiator 12 and the condenser 13 downward or obliquely backward and downward, the radiator 12 and the condenser 13 are not rotated so that the pin receiving member 98 is detached from the fixed pin 96 through the opening 98a. Is facing diagonally upward.

  Here, reference numerals 101 and 101 denote screws for attaching the radiator side bracket 97 to the radiator 12, 102 and 102 denote screws for attaching the radiator side bracket 97 to the capacitor 13, and 105 denotes an axis of the fixing pin 96 and the pin receiving member 98.

The operation of the radiator mounting structure described above will be described with reference to FIGS.
FIG. 7 is a first operation diagram showing the operation of the radiator mounting structure according to the present invention, FIG. 8 is a second operation diagram illustrating the operation of the radiator mounting structure according to the present invention, and FIG. 9 is an operation of the radiator mounting structure according to the present invention. FIG.
From the state shown in FIG. 2, when the collision object 110 collides with the vehicle in front, as shown by the white arrow in FIG. 7, the collision force is applied from the collision object 110 to the upper bracket 41 via the rib 76 of the front grill 75. Works.

  As a result, the radiator support portion 84 of the upper bracket 41 is deformed so as to be curved upward convexly by buckling deformation starting from the convex bead 84b, and the radiator support portion 84 is then inserted into the through hole 84a (FIG. 4). Is separated from the elastic member 91 fitted to the upper projecting pin 12a of the radiator 12, and as shown by an arrow A, the vehicle rearward centered on the fixed pin 96 provided on the bulkhead lower 22 side. Fall down. At this time, the capacitor support portion 89 of the upper bracket 41 is fitted to the upper elastic portion 13 a of the capacitor 13.

  In FIG. 8, when the collision object 110 further advances toward the rear of the vehicle as indicated by a white arrow, the upper bracket 41 is further deformed and is further pressed against the deformed upper bracket 41 so that the radiator 12 is further indicated by the arrow B. Falls backwards.

  Since the front inclined portion 52 is provided at the lower front portion of the bulkhead upper 21 of the front bulkhead 11, the amount of backward tilting of the radiator 12 (that is, the amount of movement of the upper end portion of the radiator 12) is increased. It is possible to absorb large collision energy when the upper bracket 41 and its surrounding parts are deformed.

  Eventually, when the upper projecting pin 12a, which is the upper end of the radiator 12, or the elastic member 91 hits the front inclined portion 52 of the bulkhead upper 21, the radiator 12 has a component that is directed downward or obliquely rearward and downward, for example, A force in the direction of arrow C acts.

  As a result, in FIG. 9, the pin receiving member 98 is detached from the fixed pin 96 on the bulkhead lower 22 side, and the radiator 12 and the capacitor 13 drop off as indicated by arrows D and E.

  At this time, since the front inclined portion 65 is provided at the front portion of the bulkhead lower 22 of the front bulkhead 11, the amount of movement of the radiator 12 and the capacitor 13 to the rear and downward when the radiator 12 and the capacitor 13 are dropped is increased. Can absorb large collision energy.

  Further, by adopting a structure in which the radiator 12 and the condenser 13 are removed, it is possible to prevent the radiator 12 and the condenser 13 from being sandwiched between, for example, the collision object 110 and the engine and preventing the deformation of the front part of the vehicle body. The front part is easily deformed, and the collision force received by the collision object 110 can be reduced.

  2 to 4, in the vehicle radiator mounting structure in which the upper end portion of the radiator 12 is attached to the upper portion of the front bulkhead 11 via the upper bracket 41, the upper end portion of the radiator 12 is attached to the upper bracket 41. And a rear through hole 84a as an attachment hole opened in the radiator support portion 84 as an upper end attachment portion, and a buckling upward of the radiator support portion 84 when a load is input to the upper bracket 41 from the front of the vehicle. And a convex bead 84b formed so as to protrude in the vehicle width direction adjacent to the rear through-hole 84a, and a radiator support portion by a load input to the upper bracket 41 during a frontal collision of the vehicle 84 is disengaged upward from the upper end of the radiator 12, so that the upper bracket 41 The vibration resistance of the radiator 12 can be ensured, and in the event of a frontal collision of the vehicle, the upper bracket 41 is urged to buckle upward from the convex bead 84b of the upper bracket 41 to start from the upper end of the radiator 12. Can be easily separated, and the upper end portion of the radiator 12 can be moved rearward to ensure the stroke amount of the front portion of the vehicle body for absorbing the collision energy.

  Further, it is not necessary to extend the upper bracket forward of the vehicle as in the prior art, and it is possible to prevent the total length of the vehicle from being increased. Further, the upper bracket 41 has a simple structure in which a rear through hole 84a and a convex bead 84b are formed. Since it is a structural member, costs can be reduced.

  As shown in FIG. 2 above, the front bulkhead upper 21 that forms the upper part of the front bulkhead 11 is connected to the upper end of the radiator 12 when the upper end of the radiator 12 moves rearward in the event of a frontal collision of the vehicle. Since the front inclined portion 52 as an upper taper portion that promotes rearward movement is provided, the rearward movement amount of the upper end portion of the radiator 12 can be increased, and the front portion of the vehicle body necessary for absorbing the collision energy can be increased. The stroke amount can be easily secured.

  Further, as shown in FIGS. 2, 5, and 6, in the radiator 12, the lower end portion is attached to the vehicle body side via the lower end attachment portion 42, and the lower end attachment portion 42 is attached to the vehicle body side, that is, the side bulk. A fixing pin 96 as a pin extending inward in the vehicle width direction from the heads 23 and 24 (see also FIG. 1), and provided on the radiator 12 side, more specifically, on the radiator side bracket 97 in order to rotatably support the fixing pin 96. A pin receiving member 98 as a receiving portion, and this pin receiving member 98 is formed in a C-shaped cross section, and acts downward on the radiator 12 when the upper end of the radiator 12 falls backward, Alternatively, since the C-shaped opening 98a is formed at a position where the pin receiving member 98 can be detached from the fixed pin 96 by an external force in the obliquely rearward downward direction, the radiator is used at the time of a frontal collision of the vehicle. When the upper end of the radiator 12 falls rearward and an external force acting downward or obliquely rearward and downward acts on the radiator 12, the pin receiving member 98 is detached from the fixed pin 96, that is, the lower end of the radiator 12 is moved to the vehicle body. Therefore, the radiator 12 can prevent the deformation of the front part of the vehicle body from being blocked. Therefore, the stroke amount for absorbing the collision energy at the front of the vehicle body can be further ensured.

  Further, as shown in FIG. 2, when the upper end of the radiator 12 moves rearward of the front bulkhead lower 22 constituting the lower part of the front bulkhead 11 and moves away from the upper bracket 41 during a frontal collision of the vehicle. Since the front inclined portion 65 is provided as a lower taper portion of the front lowering that facilitates the dropping and moving of the lower end portion of the radiator 12 (backward, downward, downward obliquely backward or downward obliquely forward), the radiator is provided by the forward inclined portion 65. The lower end of 12 can be urged to drop and move, and the entire radiator can be reliably dropped and moved, so that it is possible to further ensure the stroke amount for absorbing the collision energy at the front of the vehicle body. .

  In this embodiment, as shown in FIGS. 5 and 6, the fixing pin 96 is attached to the side bulkheads 23 and 24 (only one symbol 23 is shown) via the vehicle body side bracket 94, and the radiator 12 and The pin receiving member 98 is attached to each lower end portion of the capacitor 13 via the radiator side bracket 97. However, the present invention is not limited to this, and the fixing pin 96 may be directly attached to the side bulkheads 23, 24. Alternatively, the pin receiving member 98 may be directly attached to the lower end portion of the capacitor 13.

  The radiator mounting structure of the present invention is suitable for an automobile.

It is a perspective view which shows the front part of a vehicle provided with the radiator attachment structure which concerns on this invention. It is a side view which shows the radiator attachment structure which concerns on this invention. It is a principal part perspective view which shows the attachment structure of the radiator upper end part which concerns on this invention. It is sectional drawing which shows the attachment structure of the radiator upper end part which concerns on this invention. It is a principal part perspective view which shows the attachment structure of the radiator lower end part which concerns on this invention. It is a principal part side view which shows the attachment structure of the radiator lower end part which concerns on this invention. It is the 1st operation figure showing an operation of the radiator attachment structure concerning the present invention. It is a 2nd operation | movement figure which shows the effect | action of the radiator attachment structure which concerns on this invention. It is a 3rd operation | movement figure which shows the effect | action of the radiator attachment structure which concerns on this invention. It is explanatory drawing which shows the conventional radiator attachment structure for vehicles. It is a perspective view which shows the conventional radiator attachment structure for vehicles.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 11 ... Front bulkhead, 12 ... Radiator, 21 ... Bulkhead upper, 22 ... Bulkhead lower, 41 ... Upper bracket, 42 ... Lower end attachment part, 52 ... Upper taper part (front inclined part), 65 ... Lower taper part ( Front inclined portion), 84 ... upper end mounting portion (radiator support portion), 84a ... mounting hole (rear through hole), 84b ... convex bead, 96 ... pin (fixing pin), 98 ... receiving portion (pin receiving member), 98a ... Opening.

Claims (4)

In the vehicle radiator mounting structure for attaching the upper end of the radiator to the upper part of the front bulkhead via the upper bracket,
The upper bracket promotes buckling upward of the upper end mounting portion when a load is input to the upper bracket from the front of the vehicle and a mounting hole formed in the upper end mounting portion to which the upper end portion of the radiator is mounted. And a convex bead protruding upward so as to extend in the vehicle width direction adjacent to the mounting hole.
A radiator mounting structure for a vehicle, wherein the upper end mounting portion is separated upward from the upper end portion of the radiator by a load input to the upper bracket at the time of a frontal collision of the vehicle.   The front bulkhead upper constituting the upper part of the front bulkhead is provided with an upper taper portion that facilitates backward movement of the upper end of the radiator when the upper end of the radiator moves rearward of the vehicle at the time of a frontal collision of the vehicle. The radiator mounting structure for a vehicle according to claim 1. The radiator has a lower end attached to the vehicle body side via a lower end attaching part,
The lower end mounting portion includes a pin extending inward in the vehicle width direction from the vehicle body side, and a receiving portion provided on the radiator side for rotatably supporting the pin. The receiving portion has a C-shaped cross section. A C-shaped opening is formed at a position where the receiving part can be detached from the pin by a downward external force acting on the radiator when the upper end part of the radiator falls backward. The radiator mounting structure for a vehicle according to claim 1 or 2.   The front bulkhead lower constituting the lower portion of the front bulkhead is provided with a front lowering lower taper portion that facilitates dropping of the radiator when the upper end of the radiator moves rearward of the vehicle in the event of a frontal collision of the vehicle. The radiator mounting structure for a vehicle according to any one of claims 1 to 3, wherein:

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