Vehicular frame

Abstract

Provided is a vehicular frame that, at the forward side of a vehicle, comprises: a side frame (10) that extends in the longitudinal direction of the vehicle; a cab mount bracket (40) that is attached to the side frame (10) so as to protrude outward in the width direction of the vehicle; and a gusset (50) that is fixed at the vehicle rear side of the cab mount bracket (40) and is provided facing the side frame (10), the gusset (50) being configured so as not to be coupled to the side frame (10).

Description

Vehicle frame

[0001] The present invention relates to a vehicle frame.

[0002] A vehicle frame structure is known that includes a pair of side rails extending along the longitudinal direction of the vehicle, with the widthwise spacing at the front of the vehicle narrower than at the rear, and with a bent portion provided between the front and rear of the vehicle; a cab mount bracket provided at the bent portion and protruding outward in the widthwise direction of the vehicle; a load transfer member provided within the side rails, with a front wall arranged along the widthwise direction of the vehicle at the front of the vehicle, whose front wall overlaps with a rear portion of the cab mount bracket when the vehicle is viewed from the side; and a cross member that spans the pair of side rails, is arranged rearward of the cab mount bracket, and overlaps with the load transfer member when the vehicle is viewed from the side (Patent Document 1).

[0003] Patent No. 6003927

[0004] The portion of the side rail where the cab mount bracket is installed is more rigid and less likely to deform than other portions of the side rail. Therefore, in the case of a full-overlap collision in which a collision load is input to the front end of the side rail (also called the side frame), the above-mentioned conventional technology has a problem in that part of the side rail does not deform in the fore-and-aft direction of the vehicle, and therefore cannot efficiently absorb the collision energy.

[0005] An object of the present invention is to provide a vehicle frame that can efficiently absorb collision energy input to a vehicle.

[0006] The present invention solves the above problem in a vehicle frame that includes a side frame, a cab mount bracket attached to the side frame so as to protrude outward in the width direction of the vehicle, and a gusset that is fixed to the rear side of the vehicle of the cab mount bracket and faces the side frame by not connecting the gusset to the side frame.

[0007] According to the present invention, collision energy input to a vehicle can be efficiently absorbed.

[0008] 1 is a plan view showing an example of a vehicle frame according to an embodiment of the present invention;

[0023] FIG. 1 is a side view of the vehicle frame shown in FIG. 1;

[0024] FIG. 2 is a perspective view of a main portion of the vehicle frame shown in FIG. 1;

[0025] FIG. 3 is an exploded perspective view of a gusset shown in FIG. 3;

[0026] FIG. 4 is an exploded perspective view of a cab mount bracket shown in FIG. 3;

[0027] FIG. 5 is an exploded perspective view of a bulkhead shown in FIG. 1;

[0028] FIG. 6 is a plan view showing the action of the vehicle frame shown in FIG. 1 to absorb collision energy in a full-overlap collision;

[0029] FIG. 7 is a plan view (part 1) showing the action of the vehicle frame shown in FIG. 1 to absorb collision energy in a small overlap collision;

[0029] FIG. 8 is a plan view (part 2) showing the action of the vehicle frame shown in FIG. 1 to absorb collision energy in a small overlap collision.

[0009] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0010] [Configuration of Vehicle Frame] Fig. 1 is a plan view showing an example of a vehicle frame according to an embodiment of the present invention. The frame 1 shown in Fig. 1 is a framework-like structure located under the vehicle body and primarily supporting the vehicle body. The vehicle according to this embodiment is a vehicle equipped with a ladder frame like the frame 1 shown in Fig. 1, and is, for example, a truck including a pickup truck, a sports utility vehicle (SUV), etc. The vehicle body is a collective term for the body shell, the driver's cab, the functional body parts, the cargo bed, etc.

[0011] The body shell is a box-shaped structure that makes up the passenger compartment, luggage compartment, engine compartment, etc., and includes doors, hood, trunk lid, etc. The driver's cab is a structure that makes up the passenger compartment, engine compartment, etc., and is a completed device with all fittings attached. Body functional parts are mechanical components that open and close doors and windows, and include window glass, weatherstrips, etc. The loading platform is a structure that stores cargo.

[0012] 1 includes a structure on the front side of the vehicle for absorbing collision energy input to the vehicle. Specifically, the frame 1 includes a side frame 10, a first cross member 20, a second cross member 30, a cab mount bracket 40, a gusset 50, and a bulkhead 60. These components are manufactured from steel plates such as high-strength steel plates.

[0013] The side frames 10 are components that support the body shell as well as the engine and its accessories, which are heavy loads, and extend in the longitudinal direction of the vehicle at the front of the vehicle (specifically, in front of the passenger compartment). The side frames 10 are disposed on both the right and left sides of the vehicle. In other words, a single vehicle is provided with a pair of side frames 10, 10, as shown in FIG. 1. The side frames 10 are also referred to as side members.

[0014] The cross section of the side frame 10 perpendicular to the longitudinal direction of the vehicle has a pouch-like structure. In other words, when the side frame 10 is cut at a cross section parallel to the width direction (left-right direction) of the vehicle, the cross section of the side frame 10 is a closed cross section. The side frame 10 is manufactured, for example, by joining two press-formed parts with U-shaped cross sections by spot welding or the like. The shape of the side frame 10 is not particularly limited as long as it can adequately support the vehicle body.

[0015] As shown enlarged in the lower left of FIG. 1 , the side frame 10 has weakened portions 11 to 14 that induce longitudinal crushing of the vehicle when a collision load is input during a full-lap collision. Examples of the weakened portions include beads and notches. The locations of the weakened portions are not particularly limited. For example, as shown in FIG. 1 , the weakened portions may be provided on the front and rear sides of the cab mount bracket 40. Alternatively, the weakened portions may be provided on the front or rear sides of the cab mount bracket 40. Although not shown in the plan view of FIG. 1 , the lower side of the side frame 10 is provided with weakened portions at positions corresponding to the positions of the weakened portions provided on the upper side of the side frame 10. For example, as shown in the side view of FIG. 2 , a weakened portion 15 is provided at a position corresponding to the upper weakened portion 11, and a weakened portion 16 is provided at a position corresponding to the upper weakened portion 13.

[0016] The first cross member 20 and the second cross member 30, like the side frames 10, are components that support the engine, its accessories, and the body shell, and extend in the width direction of the vehicle to connect the pair of side frames 10. As shown in Fig. 1, the first cross member 20 is attached to the front ends of the pair of side frames 10 so as to bridge over the two ends, and the second cross member 30 is attached to the rear ends of the pair of side frames 10 so as to bridge over the two ends.

[0017] The cross sections of the first cross member 20 and the second cross member 30 perpendicular to the vehicle width direction have a bag structure. In other words, when the first cross member 20 and the second cross member 30 are cut in a cross section parallel to the vehicle's longitudinal direction, the cross sections of the first cross member 20 and the second cross member 30 are closed cross sections. Note that, like the side frame 10, the shape of the first cross member 20 and the second cross member 30 is not particularly limited as long as it is within a range that can adequately support the vehicle body. Note that, hereinafter, the second cross member 30 will also be simply referred to as the cross member 30.

[0018] The cab mount bracket 40, shown enlarged in the lower left of Figure 1, is a component that supports the vehicle body that is attached thereto, and has a mount portion M for providing a cab mount (not shown). The cab mount bracket 40 is attached to the side frame 10 by welding or the like so as to protrude outward in the width direction of the vehicle. As an example, the cab mount bracket 40 located on the left side of the vehicle in Figure 1 is attached so as to protrude leftward from the side frame 10 located on the left side of the vehicle. The shape and attachment position of the cab mount bracket 40 can be set as appropriate within a range that allows for appropriate support of the vehicle body.

[0019] The gusset 50, shown enlarged in the lower left of Fig. 1, is a component that reinforces the cab mount bracket 40 and is attached to the rear side of the vehicle of the cab mount bracket 40. For example, the gusset 50 shown in Fig. 1 is fixed to the rear side of the vehicle of the cab mount bracket 40 with a bolt. The gusset 50 may also be fixed to the cab mount bracket 40 by welding or the like. Note that fixing the gusset 50 to the cab mount bracket 40 means fixing the gusset 50 in a fixed position relative to the cab mount bracket 40 so that it does not move.

[0020] The gusset 50 of this embodiment is fixed to the cab mount bracket 40 but is not connected to the side frame 10. In other words, the gusset 50 is fixed to the rear side of the cab mount bracket 40 and is not connected to the side frame 10. Connecting the gusset 50 to the side frame 10 means fixing the gusset 50 in a fixed position relative to the side frame 10 so that it does not move, and includes welding the gusset 50 to the side frame 10, attaching the gusset 50 to the side frame 10 with bolts or adhesive, attaching the gusset 50 to the side frame 10 via a part such as a stay, etc.

[0021] 1, the gusset 50 and the side frame 10 are spaced apart from each other, and the gusset 50 is disposed to face the side frame 10 at a predetermined distance. The predetermined distance between the gusset 50 and the side frame 10 is a distance, for example, 5 to 40 mm, such that the rear end of the gusset 50 on the vehicle side comes into contact with the side frame 10 when a collision load is input to the cab mount bracket 40, and such that the gusset 50 does not inhibit deformation of the side frame 10 (specifically, crushing in the fore-and-aft direction of the vehicle) when a collision load is input to the side frame 10.

[0022] The bulkhead 60, shown enlarged in the lower left of FIG. 1 , is a component that reinforces the joint between the side frame 10 and the second cross member 30 and is provided inside the side frame 10. The side frame 10 has a pouch-like cross section perpendicular to the vehicle's longitudinal direction, and has a cavity therein, allowing components such as the bulkhead 60 to be provided inside. The bulkhead 60 is disposed in the side frame 10 near the second cross member 30, as shown enlarged in the lower left of FIG. 1 , to reinforce the joint between the side frame 10 and the second cross member 30. The bulkhead 60 may have any shape that appropriately reinforces the joint and can be accommodated inside the side frame 10.

[0023] Next, the positional relationship between the second cross member 30, the gusset 50, and the bulkhead 60 will be described with reference to FIG.

[0024] Figure 2 is a side view of the frame 1 shown in Figure 1. As shown enlarged in the lower part of Figure 2, when the vehicle is viewed from the side, at least a portion of the bulkhead 60 overlaps with the second cross member 30 in the longitudinal direction of the vehicle. In other words, when the bulkhead 60 and the second cross member 30 are projected onto a projection plane parallel to the longitudinal direction of the vehicle, at least a portion of the shadow of the bulkhead 60 and the shadow of the second cross member 30 overlap on the projection plane.

[0025] Furthermore, at least a portion of the rear end E of the gusset 50 overlaps with the bulkhead 60 in the longitudinal direction of the vehicle when the vehicle is viewed from the side. In other words, when the gusset 50 and the bulkhead 60 are projected onto a projection plane parallel to the longitudinal direction of the vehicle, at least a portion of the shadow of the gusset 50 and the shadow of the bulkhead 60 overlap on the projection plane.

[0026] Next, the structure of the cab mount bracket 40 and the gusset 50 will be described with reference to FIGS.

[0027] Figure 3 is a perspective view of the main parts of the frame 1 shown in Figure 1, seen from the upper left rear of the vehicle. As shown in Figure 3, the gusset 50 is made up of a first gusset component 51 which is the main body of the gusset, a second gusset component 52 which reinforces the first gusset component 51, and a third gusset component 53 which closes the opening of the first gusset component 51.

[0028] The configuration of the gusset 50 will be described in detail using FIG. 4 . FIG. 4 is an exploded perspective view of the gusset 50 shown in FIG. 3 . The first gusset component 51 has a shape that, for example, forms a right triangle in plan view, with a right angle formed between the longitudinal side and the width side of the vehicle. As shown in FIG. 4 , the first gusset component 51 is provided with a hole H1 through which a bolt B1 passes, a hole H2 through which a bolt B2 passes, a hole H3 through which a bolt B3 passes, a hole H7 through which a bolt B4 passes, and a hole H8 through which a bolt B5 passes. Furthermore, the first gusset component 51 is provided with holes (not shown) on the opposite side of the holes H1, H2, and H3 (i.e., on the underside of the vehicle) at positions corresponding to the holes H1, H2, and H3, respectively.

[0029] The second gusset component 52 has a shape that reinforces the attachment portion where the first gusset component 51 is attached to the cab mount bracket 40, and is provided with a hole H4 through which bolt B1 passes, a hole H5 through which bolt B2 passes, a hole H6 through which bolt B3 passes, a hole H9 through which bolt B4 passes, and a hole H10 through which bolt B5 passes, similar to the first gusset component 51. In addition, holes (not shown) are provided on the opposite side of holes H4, H5, and H6 (i.e., on the underside of the vehicle) at positions corresponding to holes H4, H5, and H6, respectively.

[0030] The first gusset component 51, the second gusset component 52, and the third gusset component 53 are manufactured by, for example, press-forming a steel plate. When assembling the gusset 50, for example, the third gusset component 53 is welded to the side frame 10 side of the first gusset component 51, and the second gusset component 52 is placed over the first gusset component 51 to which the third gusset component 53 is welded, and the second gusset component 52 is then secured to the cab mount bracket 40 with bolts B1 to B5. The bolts B1, B2, and B3 pass through the third bracket components 43a, 43b, and 43c of the cab mount bracket 40, respectively, and are secured with nuts N1, N2, and N3. The bolts B4 and B5 are secured with nuts N4 and N5 provided on the cab mount bracket 40, respectively.

[0031] The shape of the gusset 50 is not particularly limited as long as it has a predetermined distance from the side frame 10 and at least a portion of the rear end E shown in Figure 2 overlaps with the bulkhead 60 in the fore-and-aft direction of the vehicle when viewed from the side.

[0032] Returning to Figure 3, the cab mount bracket 40 is formed by joining a first bracket part 41 and a second bracket part 42 by welding or the like. Both the first bracket part 41 and the second bracket part 42 are parts that are press-formed so that their cross sections perpendicular to the width direction of the vehicle are U-shaped, with the cross section of the first bracket part 41 opening downward and the cross section of the second bracket part 42 opening upward.

[0033] The configuration of the cab mount bracket 40 will be described in detail using Figure 5. Figure 5 is an exploded perspective view of the cab mount bracket 40 shown in Figure 3. The first bracket part 41 and the second bracket part 42 are, for example, press-formed products having a U-shaped cross section as shown in Figure 4, and can be formed into any appropriate shape within the range in which the cab mount bracket 40 can be fixed to the side frame 10 and the gusset 50 can be fixed to the cab mount bracket 40.

[0034] The third bracket parts 43a, 43b, and 43c are sleeves for passing the bolts B1, B2, and B3, respectively, and are attached by welding or the like to the fourth bracket part 44, which is a bracket. The fourth bracket part 44, to which the third bracket parts 43a, 43b, and 43c are attached, is attached by welding or the like to the second bracket part 42. The shapes of these parts are not particularly limited.

[0035] The fifth bracket part 45 is a bracket that fixes the cab mount bracket 40 to the side frame 10, and is welded to the second bracket part 42, for example. The sixth bracket part 46 is a part that holds nuts N4 and N5, and is housed in a case that combines a seventh bracket part 47 and an eighth bracket part 48. These parts are also manufactured by press forming of steel plate, and are joined by welding, etc. as needed. The shapes of these parts are not particularly limited.

[0036] Next, the structure of the bulkhead 60 will be described with reference to FIG.

[0037] Figure 6 is an exploded perspective view of the bulkhead 60 shown in Figure 1, viewed from the upper front left of the vehicle. As shown in Figure 6, the bulkhead 60 includes a front wall 61, a rear wall 62, a first upper wall 63a, a second upper wall 63b, a first lower wall 64a, a second lower wall 64b, a left wall 65, a right wall 66, a vertical wall 67, a first horizontal wall 68a, and a second horizontal wall 68b. These components are manufactured by, for example, press-forming a steel plate.

[0038] The front wall 61 is disposed on the front side of the vehicle and is a member perpendicular to the fore-and-aft direction of the vehicle, and the rear wall 62 is disposed on the rear side of the vehicle and is a member perpendicular to the fore-and-aft direction of the vehicle. The first upper wall 63a and the second upper wall 63b are disposed on the upper side of the vehicle and are members perpendicular to the height direction of the vehicle, and the first lower wall 64a and the second lower wall 64b are disposed on the lower side of the vehicle and are members perpendicular to the height direction of the vehicle. In the bulkhead 60 shown in FIG. 6 , the first upper wall 63a, the first lower wall 64a, and the front wall 61 are formed as a single plate material.

[0039] The left wall 65 is a member that is disposed on the outer side in the vehicle width direction (on the left side in the case of the bulkhead 60 shown in FIG. 1 ) and is perpendicular to the vehicle width direction. The left wall 65 is a member that comes into contact with the end E of the gusset 50 in a small overlap collision, and functions as a reinforcing wall of the side frame 10. Therefore, when the vehicle is viewed from the side, the left wall 65, which serves as a reinforcing wall, overlaps with at least a portion of the second cross member 30 and at least a portion of the end E of the gusset 50 in the front-to-rear direction of the vehicle. For example, in the bulkhead 60 shown in FIG. 2 , the left wall 65, which serves as a reinforcing wall, overlaps with a portion of the second cross member 30 and a portion of the end E of the gusset 50.

[0040] The right wall 66 is a member that is disposed on the inside of the vehicle in the width direction (on the right side in the case of the bulkhead 60 shown in FIG. 1 ) and is perpendicular to the width direction of the vehicle. The right wall 66 is a member that transmits a collision load from the side frame 10 to the second cross member 30 in the event of a small overlap collision, and is fixed inside the side frame 10 near the joint between the side frame 10 and the second cross member 30.

[0041] The vertical wall 67 is disposed between the front wall 61 and the rear wall 62 in a side view of the vehicle and is a member perpendicular to the fore-and-aft direction of the vehicle. The first horizontal wall 68a and the second horizontal wall 68b are disposed between the upper wall and the lower wall in a side view of the vehicle and are members perpendicular to the height direction. In the bulkhead 60 shown in FIG. 6 , the horizontal walls are divided into a first horizontal wall 68a on the front side of the vehicle and a second horizontal wall 68b on the rear side of the vehicle. The first horizontal wall 68a is disposed between the first upper wall 63a and the first lower wall 64a, and the second horizontal wall 68b is disposed between the second upper wall 63b and the second lower wall 64b. Both the vertical wall 67 and the horizontal walls are members that increase the strength of the bulkhead 60. Furthermore, as in the bulkhead 60 shown in FIG. 6 , the second upper wall 63b, the second lower wall 64b, and the vertical wall 67 may be formed of a single plate material.

[0042] When manufacturing the bulkhead 60 by combining the components shown in FIG. 6 , first, the second horizontal wall 68b is welded to the rear wall 62. Next, the second upper wall 63b and the second lower wall 64b are welded to the rear wall 62. Because the vertical wall 67 is integral with the second upper wall 63b and the second lower wall 64b, the second horizontal wall 68b is covered by the vertical wall 67. Next, the first horizontal wall 68a is welded to the vertical wall 67. Next, the first upper wall 63a and the first lower wall 64a are welded to the vertical wall 67. Then, the left wall 65 and the right wall 66 are welded to the welded assembly of these components. Note that the chamfered surfaces between the front wall 61 and the first upper wall 63a and the chamfered surfaces between the front wall 61 and the first lower wall 64a are considered part of the front wall 61. Similarly, the chamfered surface between the vertical wall 67 and the second upper wall 63 b and the chamfered surface between the vertical wall 67 and the second lower wall 64 b are considered to be part of the vertical wall 67 .

[0043] In the bulkhead 60 shown in FIG. 6 , the upper wall is divided into a first upper wall 63 a on the front side of the vehicle and a second upper wall 63 b on the rear side of the vehicle. However, the first upper wall 63 a and the second upper wall 63 b on the rear side may be integrated into a single member to form a single upper wall. Similarly, the first lower wall 64 a on the front side of the vehicle and the second lower wall 64 b on the rear side of the vehicle may be integrated into a single member to form a single lower wall. Furthermore, if the upper wall and the lower wall are not separated as shown in FIG. 6 , the upper wall, the lower wall, and one of the front wall 61 and the rear wall 62 may be formed from a single plate material. Furthermore, the first lateral wall 68 a on the front side of the vehicle and the second lateral wall 68 b on the rear side of the vehicle may be integrated into a single lateral wall. If the lateral walls are integrated into a single member, the vertical wall 67 will be divided into an upper portion and a lower portion of the vehicle.

[0044] The front wall 61, the rear wall 62, and the vertical wall 67 may be perpendicular to the longitudinal direction of the side frame 10 (i.e., perpendicular to the inner upper and lower surfaces of the side frame 10). The upper walls (first upper wall 63a and second upper wall 63b), the lower walls (first lower wall 64a and second lower wall 64b), the first horizontal wall 68a, and the second horizontal wall 68b may be perpendicular to the short direction of the side frame 10 (i.e., parallel to the inner upper and lower surfaces of the side frame 10). The left wall 65 and the right wall 66 may be parallel to the inner side surfaces of the side frame 10.

[0045] [Operation of Vehicle Frame] The operation of the vehicle frame of this embodiment will be described with reference to FIGS.

[0046] 7 is a plan view showing deformation of the frame 1 in a full-overlap collision in which a collision load is input to the front end of the side frame 10. For example, when a vehicle equipped with the frame 1 collides with a barrier 70, a collision load F1 is input to the front end of the side frame 10 via the first cross member 20. When the collision load F1 is input, the side frame 10 is crushed at the weak portions 11 and 12 and deforms in the direction of arrow A1 along the fore-and-aft direction of the vehicle. The side frame 10 is also crushed at the weak portions 13 and 14 and deforms in the direction of arrow A2 along the fore-and-aft direction of the vehicle. As a result, the side frame 10 is crushed in the fore-and-aft direction of the vehicle at portions other than the portion where the cab mount bracket 40 is attached, thereby absorbing the collision energy input to the vehicle.

[0047] In contrast, when the gusset 50 is connected to the opposing side frame 10, the gusset 50 inhibits deformation of the side frame 10, so that the vehicle does not collapse in the fore-and-aft direction at the weak portions 13, 14. Therefore, compared to when the gusset 50 is not connected to the side frame 10, the amount of collision energy that can be absorbed by the side frame 10 is reduced.

[0048] 8 is a plan view showing deformation of the frame 1 in a small overlap collision in which the collision load is not input to the front end of the side frame 10. For example, when a vehicle equipped with the frame 1 collides with a barrier 71, the first cross member 20 moves in the direction of arrow A3, and as shown in FIG. 9, the collision load F2 is input to the cab mount bracket 40, not the front end of the side frame 10.

[0049] When the collision load F2 is input, the cab mount bracket 40 moves together with the gusset 50 in the direction of arrow A4, and the rear end E of the gusset 50 comes into contact with the side frame 10. This contact transmits a collision load F3 from the rear end E of the gusset 50 to the side frame 10. As a result, the side frame 10 deforms in the direction of arrow A5 from the portion of the side frame 10 that comes into contact with the end E due to the collision load F3. In addition, the bulkhead 60 provided within the side frame 10 receives the collision load F3 and transmits a collision load F4 to the second cross member 30. As a result, the frame (the side frame 10 and the second cross member 30) deforms and absorbs the collision energy even in a small overlap collision.

[0050] As described above, according to this embodiment, a vehicle frame is provided that includes a side frame extending in the longitudinal direction of the vehicle at the front side of the vehicle, a cab mount bracket 40 attached to the side frame so as to protrude outward in the width direction of the vehicle, and a gusset 50 fixed to the rear side of the vehicle of the cab mount bracket 40 and provided facing the side frame, the gusset 50 being uncoupled to the side frame. This allows for efficient (appropriate) absorption of collision energy input to the vehicle.

[0051] Furthermore, the vehicle frame of this embodiment includes a bulkhead 60 provided within the side frame, which has a bag-shaped cross section perpendicular to the longitudinal direction of the vehicle, and a cross member 30 extending in the width direction of the vehicle and connecting the pair of side frames, wherein at least a portion of the bulkhead 60 overlaps with the cross member 30 in the longitudinal direction when the vehicle is viewed from the side, and at least a portion of the rear end E of the gusset 50 overlaps with the bulkhead 60 in the longitudinal direction when the vehicle is viewed from the side. This allows a collision load to be appropriately transmitted to the side frame 10 and the cross member 30 in a small overlap collision.

[0052] Furthermore, according to the vehicle frame of this embodiment, the bulkhead 60 includes a front wall 61 disposed on the front side of the vehicle and perpendicular to the front-to-rear direction, a rear wall 62 disposed on the rear side and perpendicular to the front-to-rear direction, and a vertical wall 67 disposed between the front wall 61 and the rear wall 62 when the vehicle is viewed from the side and perpendicular to the front-to-rear direction. This increases the strength of the bulkhead 60.

[0053] Furthermore, according to the vehicle frame of this embodiment, the bulkhead 60 includes an upper wall disposed above the vehicle and perpendicular to the height direction of the vehicle, and a lower wall disposed below the vehicle and perpendicular to the height direction, thereby increasing the strength of the bulkhead 60.

[0054] Furthermore, according to the vehicle frame of this embodiment, the bulkhead 60 is disposed between the upper wall and the lower wall when the vehicle is viewed from the side, and includes a lateral wall that is perpendicular to the height direction, thereby increasing the strength of the bulkhead 60.

[0055] Furthermore, according to the vehicle frame of this embodiment, the bulkhead 60 includes a front wall 61 disposed at the front side of the vehicle and perpendicular to the front-to-rear direction, a rear wall 62 disposed at the rear side and perpendicular to the front-to-rear direction, an upper wall disposed at the upper side of the vehicle and perpendicular to the height direction of the vehicle, and a lower wall disposed at the lower side of the vehicle and perpendicular to the height direction, wherein the upper wall, the lower wall, and one of the front wall 61 and the rear wall 62 are made of a single plate material. This simplifies the configuration of the bulkhead 60.

[0056] Furthermore, according to the vehicle frame of this embodiment, the bulkhead 60 is provided with a vertical wall 67 that is disposed between the front wall 61 and the rear wall 62 when the vehicle is viewed from the side and is perpendicular to the fore-and-aft direction, and a horizontal wall that is disposed between the upper wall and the lower wall when the vehicle is viewed from the side and is perpendicular to the height direction, wherein the upper wall consists of a first upper wall 63a on the front side and a second upper wall 63b on the rear side, the lower wall consists of a first lower wall 64a on the front side and a second lower wall 64b on the rear side, and the horizontal wall consists of a first horizontal wall 68a on the front side and a second horizontal wall 68b on the rear side, the first upper wall 63a, the first lower wall 64a, and the front wall 61 are formed from a single plate material, and the second upper wall 63b, the second lower wall 64b, and the vertical wall 67 are formed from a single plate material. This increases the strength of the bulkhead 60.

[0057] Furthermore, according to the vehicle frame of this embodiment, the bulkhead 60 is disposed outward in the width direction and includes a reinforcing wall perpendicular to the width direction, and the reinforcing wall overlaps, in the fore-and-aft direction, at least a portion of the cross member 30 and at least a portion of the end of the gusset 50. This allows the collision load to be appropriately transmitted to the side frame 10 and the cross member 30 in a small overlap collision.

[0058] Furthermore, according to this embodiment, a vehicle is provided that includes the vehicle frame described above, which allows collision energy input to the vehicle to be appropriately absorbed.

[0059] REFERENCE SIGNS LIST 1...Frame 10...Side frame (side member) 11, 12, 13, 14, 15, 16...Weakened portion 20...First cross member 30...Second cross member 40...Cab mount bracket 41...First bracket part 42...Second bracket part 43a, 43b, 43c...Third bracket part 44...Fourth bracket part 45...Fifth bracket part 46...Sixth bracket part 47...Seventh bracket part 48...Eighth bracket part 50...Gusset 51...First gusset part 52...Second gusset part 53...Third gusset part 60...Bulkhead 61...Front wall 62...Rear wall 63a...First upper wall 63b...Second upper wall 64a...First lower wall 64b...Second lower wall 65...Left wall (reinforced wall) 66...Right wall 67...Vertical wall 68a...First side wall 68b...Second side wall 70, 71...Barrier A1, A2, A3, A4...Arrows B1, B2, B3, B4, B5...Bolt E...End F1, F2, F3, F4...Collision load M...Mounting part N1, N2, N3, N4, N5...Nut H1, H2, H3, H4, H5, H6, H7, H8, H9, H10...Hole

Claims

1. a side frame extending in a front-rear direction of the vehicle at a front side of the vehicle; a cab mount bracket attached to the side frame so as to protrude outward in a width direction of the vehicle; a gusset fixed to the rear side of the vehicle of the cab mount bracket and provided facing the side frame, the gusset is not connected to the side frame; A vehicle frame in which a portion of the side frame facing the gusset is crushable in the fore-and-aft direction when a load is input from the front side.

2. a bulkhead provided within the side frame, the cross section of which perpendicular to the longitudinal direction of the vehicle has a bag structure; a cross member extending in the width direction of the vehicle and connecting the pair of side frames, At least a portion of the bulkhead overlaps with the cross member in the front-rear direction when the vehicle is viewed from the side, The vehicle frame according to claim 1 , wherein at least a portion of the rear end of the gusset overlaps with the bulkhead in the front-rear direction when the vehicle is viewed from the side.

3. The bulkhead is a front wall disposed on the front side of the vehicle and perpendicular to the front-rear direction; a rear wall disposed on the rear side and perpendicular to the front-rear direction; The vehicle frame according to claim 2 , further comprising: a vertical wall that is disposed between the front wall and the rear wall when the vehicle is viewed from the side and that is perpendicular to the front-to-rear direction.

4. The bulkhead is an upper wall disposed above the vehicle and perpendicular to a height direction of the vehicle; The vehicle frame according to claim 2 or 3, further comprising: a lower wall disposed on a lower side of the vehicle and perpendicular to the height direction.

5. The vehicle frame according to claim 4 , wherein the bulkhead is disposed between the upper wall and the lower wall when the vehicle is viewed from the side, and includes a lateral wall that is perpendicular to the height direction.

6. The bulkhead is a front wall disposed on the front side of the vehicle and perpendicular to the front-rear direction; a rear wall disposed on the rear side and perpendicular to the front-rear direction; an upper wall disposed above the vehicle and perpendicular to a height direction of the vehicle; a lower wall disposed on a lower side of the vehicle and perpendicular to the height direction, 3. The vehicle frame according to claim 2, wherein the upper wall, the lower wall, and one of the front wall and the rear wall are made of a single plate material.

7. The bulkhead is a vertical wall that is disposed between the front wall and the rear wall when the vehicle is viewed from the side and is perpendicular to the front-to-rear direction; a lateral wall that is disposed between the upper wall and the lower wall when the vehicle is viewed from the side and is perpendicular to the height direction, the upper wall includes a first upper wall on the front side and a second upper wall on the rear side, the lower wall includes a first lower wall on the front side and a second lower wall on the rear side, The lateral wall includes a first lateral wall on the front side and a second lateral wall on the rear side, the first upper wall, the first lower wall, and the front wall are made of a single plate material, The vehicle frame according to claim 6, wherein the second upper wall, the second lower wall, and the vertical wall are formed from a single plate material.

8. The bulkhead is disposed on the outer side in the width direction and includes a reinforcing wall perpendicular to the width direction, The vehicle frame according to any one of claims 2 to 7, wherein the reinforcing wall overlaps with at least a portion of the cross member and at least a portion of the end of the gusset in the fore-and-aft direction when the vehicle is viewed from the side.

9. A vehicle comprising the vehicle frame according to any one of claims 1 to 8.