Lower vehicle body structure of vehicle

Abstract

The purpose of the present invention is to provide a lower vehicle body structure for a vehicle in which a console assist device can be attached while ensuring desired frontal impact performance. A lower vehicle body structure of a vehicle (1) in which a tunnel portion (5) having a pair of right and left ridge portions (5a) is formed at a center position in a vehicle width direction, the lower vehicle body structure of the vehicle (1) being provided with a pair of right and left side members (3), a first floor cross member (20) connecting the side members (3) in the vehicle width direction, and a console bracket (10), and a console bracket (10) which covers the tunnel section (5) from above the vehicle in the front of the first floor cross member (20), and which has an opening cross-sectional shape that opens toward the lower side of the vehicle and extends in the front-rear direction of the vehicle, the console bracket (10) is provided with left and right pairs of first parts (11) and a second part (12), wherein the left and right pairs of first parts (11) protrude towards the upper part of the vehicle along the left and right pairs of ridge line parts (5a) and are provided with console auxiliary equipment on the upper surface parts (111), and the second part (12) is positioned between the first parts (11) and is closer to the lower part of the vehicle than the upper surface parts (111) of the first parts (11). The second part (12) is fixed on the channel part (5) and the first floor cross beam (20).

Description

TECHNICAL FIELD

[0001] The present application relates to a lower body structure of a vehicle, for example, which is provided with a tunnel portion extending in the vehicle front-rear direction substantially at the center in the vehicle width direction of a floor panel. BACKGROUND

[0002] Recently, a structure is known in which left and right pairs of side sills extending in the vehicle front-rear direction at both ends in the vehicle width direction of a floor panel and a console bracket for mounting a console auxiliary device such as a shift, electrical components, etc. on an upper surface are fixed to a cross member linking the left and right pairs of side sills in the vehicle width direction (see Patent Document 1).

[0003] The vehicle body structure disclosed in Patent Document 1 is provided with a front cross member disposed in the front of the vehicle, a rear cross member disposed in the rear of the vehicle from the front cross member, a convex tunnel portion extending in the vehicle front-rear direction from a cowl panel to the front cross member, and a console bracket extending in the vehicle front-rear direction from the tunnel portion to the rear cross member.

[0004] Among these, as described above, the console bracket mounts the console auxiliary device on the upper surface thereof, and thus needs to be disposed above the vehicle at a prescribed height from the floor panel. The console bracket is fixed to the tunnel portion, the front cross member, and the rear cross member from above by leg portions extending in the vehicle up-down direction, and covers the vehicle upper side of the battery disposed between the front cross member and the rear cross member.

[0005] The console bracket configured as above is fixed to the tunnel portion, the front cross member, and the rear cross member from above by leg portions extending in the vehicle up-down direction to cover the vehicle upper side of the battery, and thus the upper surface thereof is disposed at a position above the vehicle from the battery, and the console auxiliary device can be mounted on the upper surface thereof.

[0006] On the other hand, for example, it is necessary to transmit a collision load from the front of the vehicle to the rear of the vehicle via the cross member and the side sills from the tunnel portion, but the console bracket of Patent Document 1 is fixed to the tunnel portion, the front cross member, and the rear cross member from above by leg portions extending in the vehicle up-down direction, and thus it cannot be said that the collision load from the front of the vehicle is efficiently transmitted to the cross member, and there is room for improvement.

[0007]

Prior Art Documents

Patent Documents

Patent Document 1

[0008]

Problem to be Solved by the Invention

[0009] Technical means to solve technical problems This invention relates to a lower body structure of a vehicle, characterized in that: a channel portion protruding upwards from the center of the floor panel in the vehicle width direction is formed, and the channel portion has a pair of left and right ridge portions extending in the vehicle's longitudinal direction; the lower body structure of the vehicle includes: a pair of left and right side beams extending in the vehicle's longitudinal direction from both ends of the floor panel in the vehicle width direction; a crossbeam connecting the pair of left and right side beams in the vehicle width direction across the channel portion and fixed to the upper surface of the floor panel; a console bracket covering the channel portion from above the vehicle at the front of the crossbeam and having an opening cross-sectional shape extending in the vehicle's longitudinal direction; wherein the console bracket has a pair of left and right first portions protruding upwards from the vehicle along the pair of left and right ridge portions and mounting console auxiliary equipment on its upper surface, and a second portion located between the pair of left and right first portions and located below the vehicle than the upper surface of the first portions, the second portion being fixed to the channel portion and the crossbeam.

[0010] Regarding the crossbeam that connects the left and right pairs of side beams across the aforementioned passage in the vehicle width direction, its two ends can be directly connected to the side beams, or they can be connected via seat mounting brackets or connecting plates provided at both ends.

[0011] The aforementioned console auxiliary equipment refers to the gear shift lever, operation receiver (button), rotary operation receiver, or components supporting the above.

[0012] According to the present invention, the lower body structure of the vehicle can ensure the desired frontal collision performance and can be equipped with console auxiliary equipment.

[0013] Specifically, in the lower body structure of the vehicle, a passage portion protruding upwards from the center of the floor panel in the vehicle width direction is formed, and the passage portion has a pair of left and right ridge portions extending in the vehicle front-rear direction. The lower body structure of the vehicle includes: a pair of left and right side beams that connect to the two ends of the floor panel in the vehicle width direction and extend in the vehicle front-rear direction across the passage portion and are fixed to the upper surface of the floor panel; a console bracket that covers the passage portion from above the vehicle at the front of the crossbeam and has an opening that opens downwards from the vehicle and has an opening cross-sectional shape extending in the vehicle front-rear direction.

[0014] The console bracket has the first portions that protrude upward of the vehicle along the ridge line portions of the tunnel portion, and the second portions that are positioned between the first portions and are positioned lower than the upper surfaces of the first portions.

[0015] Therefore, the first portions protrude upward of the vehicle along the ridge line portions of the tunnel portion that protrude upward of the vehicle, and the upper surfaces thereof can be positioned at a prescribed height with respect to the floor panel.

[0016] Therefore, the console auxiliary equipment mounted on the upper surfaces of the first portions can be positioned at an appropriate height.

[0017] On the other hand, the second portions that are positioned between the first portions and are positioned lower than the upper surfaces of the first portions are fixed to the tunnel portion and the cross member. Therefore, the tunnel portion and the cross member can be connected in a load-transferring manner without affecting the console auxiliary equipment mounting.

[0018] Therefore, the lower body structure of the vehicle can function as a load-transferring member, and can smoothly transfer a collision load from the front of the vehicle to the rear of the vehicle via the cross member and the side member in cooperation with the tunnel portion.

[0019] Thus, the console bracket has the second portions that are fixed to the tunnel portion and the cross member, and the lower body structure of the vehicle that has the console bracket can mount the console auxiliary equipment at a prescribed height and can ensure a desired frontal crash performance.

[0020] As a mode of the present application, a flange that is fixed to the floor panel can be provided on the front side of the cross member with respect to the vehicle, and the first portions can be fixed to the flange of the cross member.

[0021] The flange that fixes the first portions to the cross member refers to a flange provided on the outer side in the vehicle width direction of the first portions or a portion of the first portions, and can be fixed by bolt fastening, rivet, or welding such as spot welding.

[0022] According to the present application, the lower body structure of the vehicle fixes the first portions to the cross member. Therefore, the rigidity of the console bracket with respect to a collision load from the front of the vehicle that is input from the tunnel portion can be improved.

[0023] Therefore, the lower body structure of the vehicle can reliably transmit the collision load from the front of the vehicle input from the tunnel portion to the cross member.

[0024] Further, as a mode of the present application, a flange fixed to the floor panel can be provided on the front side of the vehicle of the cross member, and the second portion can be fixed to the flange of the cross member.

[0025] The fixing of the second portion to the flange of the cross member can be performed by fastening and fixing with a bolt, by fixing with a rivet, or by fixing with a welding method such as spot welding.

[0026] According to the present application, the lower body structure of the vehicle can connect the second portion to the cross member via the flange provided on the front side of the vehicle for fixing the cross member to the floor panel.

[0027] Therefore, the second portion can be connected to the cross member with a simple structure and with easy assembly.

[0028] Therefore, the lower body structure of the vehicle can input the collision load from the front of the vehicle input from the tunnel portion to the cross member from the flange, and can smoothly transmit the load to the rear of the vehicle via the cross member and the side member.

[0029] Further, as a mode of the present application, the upper surface of the tunnel portion can have a tunnel inclined portion inclined upward of the vehicle as it goes forward of the vehicle, and a tunnel rear portion disposed at a position rearward of the vehicle of the tunnel inclined portion and extending in the front-rear direction of the vehicle, the console bracket can be disposed at a position covering a tunnel curved portion formed between the tunnel inclined portion and the tunnel rear portion, and the second portion can be connected to the tunnel inclined portion.

[0030] According to the present application, in the lower body structure of the vehicle, the second portion of the console bracket covering the tunnel portion from above of the vehicle is connected to the tunnel inclined portion on the front side of the cross member of the vehicle, and covers the tunnel curved portion formed between the tunnel inclined portion and the tunnel rear portion.

[0031] Therefore, in the lower body structure of the vehicle, the inclination angle in the longitudinal section in the front-rear direction of the vehicle changes between the tunnel inclined portion and the tunnel rear portion forming the tunnel curved portion, and thus the rigidity of the tunnel portion in the front-rear direction of the vehicle can easily decrease, but the second portion connected to the tunnel inclined portion and the cross member covers the tunnel curved portion in which the rigidity easily decreases.

[0032] Thus, in the lower vehicle body structure, the console bracket can reinforce the tunnel portion, which is low in rigidity against the collision load from the front of the vehicle, and the second portion, which is connected to the flange of the cross member, can smoothly transmit the collision load from the front of the vehicle to the rear of the vehicle via the cross member and the side members.

[0033] Further, as a mode of the present application, the second portion can have a front portion extending in the vehicle front-rear direction and separated upward from the upper surface of the tunnel portion, and a rear inclined portion disposed at a position further rearward than the front portion and inclined downward toward the rear of the vehicle.

[0034] According to the present application, in the lower vehicle body structure, the front portion of the second portion, which is disposed at a position lower than the upper surface of the first portion, is separated upward from the upper surface of the tunnel portion, and the rear inclined portion is inclined toward the flange of the cross member.

[0035] Thus, compared to a case where the front portion is inclined along the tunnel inclined portion, the lower vehicle body structure can ensure a cross-sectional area in the vehicle width direction at the front portion of the second portion. Thus, the lower vehicle body structure can improve the rigidity of the vehicle body against the collision load from the front of the vehicle.

[0036] On the other hand, compared to a case where the rear portion of the console bracket extends in the vehicle up-down direction, the lower vehicle body structure can moderate the direction of connection to the cross member by the rear inclined portion of the second portion. Thus, the collision load from the front of the vehicle input from the tunnel inclined portion can be smoothly transmitted to the cross member.

[0037] Thus, in the lower vehicle body structure, the collision load from the front of the vehicle input to the tunnel portion can be smoothly transmitted to the rear of the vehicle via the cross member and the side members together with the tunnel portion.

[0038] Further, as a mode of the present application, a curved portion formed between the front portion and the rear inclined portion can be disposed at a different position in the vehicle front-rear direction than the tunnel curved portion.

[0039] According to the present application, in the lower vehicle body structure, the curved portion of the console bracket, which is low in rigidity against the collision load from the front of the vehicle, and the tunnel curved portion are not coincident in the vehicle front-rear direction.

[0040] Therefore, the lower vehicle body structure of the vehicle can improve the rigidity of the console bracket against the collision load from the front of the vehicle.

[0041] Therefore, the lower vehicle body structure of the vehicle can improve the rigidity of the console bracket against the collision load from the front of the vehicle.

[0042] Further, as a mode of the present application, the following can also be possible. The inflection portion formed between the front portion and the rear inclined portion is arranged at a position further forward in the vehicle than the passage inflection portion.

[0043] According to the present application, the length of the rear inclined portion of the lower vehicle body structure of the vehicle can be set to be relatively long.

[0044] Therefore, the inclination angle of the rear inclined portion can be moderated, that is, the angle of the inflection portion in the console bracket can be set to be relatively large.

[0045] Therefore, the lower vehicle body structure of the vehicle can improve the rigidity of the console bracket against the collision load from the front of the vehicle.

[0046] Further, as a mode of the present application, the following can also be possible. The first portion overlaps the cross member as viewed in the vehicle front-rear direction.

[0047] According to the present application, in the lower vehicle body structure of the vehicle, the first portion on both sides in the vehicle width direction of the second portion is arranged further forward in the vehicle than the cross member.

[0048] Therefore, the lower vehicle body structure of the vehicle can make the position of the center of gravity of the console bracket in the vehicle up-down direction in the vertical cross section of the console bracket in the vehicle width direction similar to the position of the center of gravity of the cross member in the vehicle front-rear direction in the vertical cross section of the cross member in the vehicle width direction.

[0049] Therefore, the lower vehicle body structure of the vehicle can improve the rigidity of the console bracket against the collision load from the front of the vehicle.

[0050] Further, in the lower vehicle body structure of the vehicle, the first portion of the second portion is disposed in the vehicle front side of the cross member in the vehicle width direction, and thus, even if the tunnel portion is pushed backward in the event of a frontal collision, the tunnel portion can be prevented from being pushed backward by the console bracket and the cross member. At this time, the collision load from the vehicle front side can be applied to the second portion via the first portion and the cross member, and thus, the lower vehicle body structure of the vehicle can effectively prevent the tunnel portion from being pushed backward.

[0051] Further, as a mode of the present application, the first portion can be fixed to the tunnel portion or the vicinity of the tunnel portion.

[0052] According to the present application, the lower vehicle body structure of the vehicle can fix the first portion of the console bracket to the tunnel portion or the vicinity of the tunnel portion, which is a part of the floor panel, in the vehicle width direction.

[0053] Thus, the lower vehicle body structure of the vehicle can firmly fix the console bracket to the floor panel, and can improve the rigidity of the floor panel and the console bracket.

[0054] Thus, the lower vehicle body structure of the vehicle can suppress the vibration generated in the console bracket and the floor panel.

[0055]

Effects of Invention

[0056] Figure 1 is an appearance oblique view of the appearance of the lower vehicle body of the vehicle from the vehicle rear side; Figure 2 is a plan view of the appearance of the lower vehicle body of the vehicle; Figure 3 is Figure 2 is an enlarged plan view of a main portion thereof; Figure 4 is an appearance oblique view of the appearance of the main portion of the lower vehicle body of the vehicle from the vehicle rear side; Figure 5 is an explanatory view of a sectional view taken along the arrow direction of A-A in Figure 3 Figure 6 is a sectional view taken along the arrow direction of A-A in Figure 2 DETAILED DESCRIPTION

[0057] The following drawings are attached to the present application. Figure 1 ​​This invention will now be described as an embodiment of the present invention.

[0058] The vehicle described in this embodiment is, for example, a vehicle having a passageway extending in the longitudinal direction of the vehicle, approximately at the center of the floor panel in the vehicle width direction. (Using...) Figures 1 to 6 The lower body structure of the cabin section of vehicle 1 above is described in detail.

[0059] Figure 1 This is a perspective view of the lower part of vehicle 1 from the rear. Figure 2 This is a plan view of the lower body of vehicle 1. Figure 3 yes Figure 2 Enlarged floor plan of the main part of the building. Figure 4 This is a perspective view of the main parts of the lower body of vehicle 1 from a rear view. Figure 5 It is based on Figure 3 An explanatory diagram based on the cross-sectional view in the direction of the middle arrow. Figure 6 It is along Figure 2 A cross-sectional view of the main part in the A-A arrow direction view.

[0060] In detail, Figure 5 (a) is along Figure 3 The cross-sectional view in the direction of the B-B arrow in the figure. Figure 5 (b) is along Figure 3 A cross-sectional view in the direction of the C-C arrow in the image. Figure 5 (c) is along Figure 3 A cross-sectional view of the D-D arrow direction view in the image.

[0061] In the diagram, arrows Fr and Rr indicate the forward and backward directions, with Fr indicating the front and Rr indicating the rear. Arrows Rw and Lw indicate the vehicle width direction, with Rw indicating the right direction and Lw indicating the left direction. Arrows Uh and Dh indicate the vehicle's vertical direction, with Uh indicating above the vehicle and Dh indicating below.

[0062] like Figure 1 and Figure 2 As shown, the lower body of vehicle 1 includes: a front bulkhead 2 that separates the engine compartment and the passenger compartment in the longitudinal direction of the vehicle; a pair of left and right side beams 3 that extend from the lower part of both ends of the front bulkhead 2 in the width direction of the vehicle to the rear of the vehicle; and a front floor panel 4 disposed between the left and right side beams 3 and forming the passenger compartment floor.

[0063] And, as Figure 1 and Figure 2As shown, the lower body of vehicle 1 forms a roughly channel-shaped raised section 5 extending from the front of the vehicle to the rear of the vehicle near the center in the vehicle width direction, and has floor beams 20, 30, and 40 near the center in the vehicle front-rear direction. A console bracket 10 covering the channel section 5 is also provided at a position closer to the front of the vehicle than the first floor beam 20.

[0064] In addition, in the lower body of vehicle 1, a first floor crossbeam 20, a second floor crossbeam 30, and a third floor crossbeam 40 are sequentially installed from the front of the vehicle to the rear of the vehicle, connecting the left and right side beams 3 in the vehicle width direction.

[0065] Specifically, the front bulkhead 2 is a plate member with thickness in the longitudinal direction of the vehicle, and its lower part is curved towards the rear of the vehicle. The front floor panel 4 is provided from the lower end of the front bulkhead 2 towards the rear of the vehicle.

[0066] The side beams 3 extend from the lower part of both ends of the front bulkhead 2 in the vehicle width direction to the rear of the vehicle and are formed in pairs on the left and right. The cross-sectional shape of the side beams 3 in the longitudinal section along the vehicle width direction forms a closed section with a roughly rectangular cross-section.

[0067] More specifically, the side beam 3 is composed of an outer beam (not shown in the figure) with a roughly hat-shaped cross section and an inner beam (not shown in the figure) with a roughly hat-shaped cross section in the longitudinal section along the vehicle width direction. The outer beam protrudes outward in the vehicle width direction, and the inner beam protrudes inward in the vehicle width direction.

[0068] like Figures 1 to 5 As shown, the front floor panel 4 is a generally flat plate member with thickness in the vertical direction of the vehicle, and its front end is connected to the lower end of the front bulkhead 2.

[0069] The front floor panel 4 is a floor slope 4a that slopes towards the front bulkhead 2 and upwards towards the vehicle.

[0070] In the front floor panel 4, a passage 5 protruding upwards towards the vehicle is formed approximately in the center of the vehicle width direction.

[0071] In the passage section 5, the end in front of the vehicle is joined to the front bulkhead 2, and its upper surface slopes towards the rear and downward of the vehicle towards the first floor beam 20, which will be described later.

[0072] More specifically, the upper surface of the passage section 5 has: a passage inclined portion 51 that slopes towards the rear of the vehicle and downwards from the first floor crossbeam 20 (described later), and a passage rear portion 52 that extends substantially horizontally along the vehicle's longitudinal direction from the rear of the vehicle than the passage inclined portion 51; a passage bend 53 is located between the passage inclined portion 51 and the passage rear portion 52. The upper surface of the passage rear portion 52 is positioned at a predetermined height above the vehicle relative to the front floor panel 4.

[0073] The upper part of the passage section 5 has a pair of left and right ridge sections 5a that are spaced at a predetermined interval in the vehicle width direction and extend along the vehicle front-rear direction.

[0074] Floor beams 20, 30, and 40 span the rear portion 52 of the passageway 5 extending along the vehicle's longitudinal direction, connecting the left and right paired side beams 3 in the vehicle width direction, and are arranged in the order of floor beams 20, 30, and 40 from the front of the vehicle to the rear. That is, floor beams 20, 30, and 40 connect the left and right side beams 3 in a roughly straight line near the center of the front floor panel 4 in the vehicle's longitudinal direction.

[0075] The floor beams 20, 30, and 40 have an approximate M-shaped cross section extending along the vehicle width direction.

[0076] like Figure 1 and Figure 2 As shown, the first floor crossbeam 20 is positioned closer to the front of the vehicle than the second floor crossbeam 30, and the cross passage 5 extends in the vehicle width direction.

[0077] The first floor crossbeam 20 also has a spanning portion 21 that crosses the passageway 5 at its center in the vehicle width direction. The spanning portion 21 rises upwards along the passageway 5 compared to other parts of the vehicle. In addition, the first floor crossbeam 20 has four seat brackets 60 for mounting the front seats (not shown) on the outer side of the spanning portion 21 in the vehicle width direction and at both ends of the first floor crossbeam 20 in the vehicle width direction. The seat brackets 60 at both ends in the vehicle width direction are connected to the left and right paired side beams 3. The seat brackets 60 and the side beams 3 are fixed by welding methods such as spot welding.

[0078] Furthermore, the first floor crossbeam 20 has crossbeam flanges 22 extending along the vehicle width and in the vehicle's longitudinal direction on both sides, which are joined and fixed to the front floor panel 4. The crossbeam flanges 22 are fixed to the upper surface of the side beam 3 by spot welding or other means. The crossbeam flanges 22 of the spanning portion 21 of the first floor crossbeam 20 are joined and fixed to the channel portion 5 that constitutes the front floor panel 4.

[0079] More specifically, the front flange 22a of the crossbeam flange 22 in the vehicle front direction is directly fixed to the front floor panel 4, and the rear flange 22b of the vehicle rear is disposed above the front flange 32a of the second floor crossbeam 30 described later, and is fixed to the upper surface of the front floor panel 4 via the front flange 32a.

[0080] Therefore, the first floor crossbeam 20, in its longitudinal section along the vehicle's longitudinal direction, has a closed section shape that extends along the vehicle width direction, forming a cross section with the front floor panel 4. The upper surface of the first floor crossbeam 20, which engages with the side beam 3, has approximately the same height as the upper surface of the side beam 3.

[0081] As shown in Figure 1 and Figure 2 The second floor cross member 30 is disposed at a position further to the rear of the vehicle than the first floor cross member 20, at a position further to the front of the vehicle than the third floor cross member 40, and is disposed extending in the vehicle width direction across the tunnel portion 5.

[0082] Further, as with the first floor cross member 20, the second floor cross member 30 has a span portion 31 spanning the tunnel portion 5 at the center in the vehicle width direction. The span portion 31 is raised upward of the vehicle compared to other portions along the tunnel portion 5. The second floor cross member 30 also has a pair of connection plates 61 for engaging with the side members 3 at both ends in the vehicle width direction, and is engaged with the left and right pair of side members 3 via the connection plates 61 at both ends in the vehicle width direction. The connection plates 61 and the side members 3 are fixed by being engaged by welding such as spot welding.

[0083] Further, the second floor cross member 30 has cross member flanges 32 extending in the vehicle width direction and in the vehicle front-rear direction at both sides in the vehicle front-rear direction, and is fixed by being engaged with the front floor panel 4 via the cross member flanges 32. The cross member flanges 32 are fixed to the upper surfaces of the side members 3 by welding such as spot welding.

[0084] More specifically, as described above, of the cross member flanges 32 in the vehicle front-rear direction, the front flange 32a disposed to the front of the vehicle is covered by the rear flange 22b of the first floor cross member 20 and is fixed to the front floor panel 4, and the rear flange 32b disposed to the rear of the vehicle is disposed above the front flange 42a of the third floor cross member 40 described later, and is fixed to the upper surface of the front floor panel 4 via the front flange 42a.

[0085] Therefore, the second floor cross member 30 has a shape in which the front floor panel 4 forms a closed cross section extending in the vehicle width direction in a longitudinal cross section along the vehicle front-rear direction. The upper surface of the second floor cross member 30 engaged with the side members 3 and the upper surface of the side members 3 are substantially the same height.

[0086] As shown in Figure 1 and Figure 2 The third floor cross member 40 is disposed at a position further to the rear of the vehicle than the second floor cross member 30, and is disposed extending in the vehicle width direction across the tunnel portion 5.

[0087] The third floor cross member 40 also has a span portion 41 spanning the tunnel portion 5 at the center in the vehicle width direction. The span portion 41 is raised upward of the vehicle compared to other portions along the tunnel portion 5. The third floor cross member 40 also has four seat brackets 60 for mounting a front seat (not shown) at the vehicle width direction outer side of the span portion 41 and at both ends in the vehicle width direction of the third floor cross member 40, and is engaged with the left and right pair of side members 3 via the seat brackets 60 at both ends in the vehicle width direction. The seat brackets 60 and the side members 3 are fixed by being engaged by welding such as spot welding.

[0088] Furthermore, the third floor crossbeam 40 has crossbeam flanges 42 extending along the vehicle width and in the vehicle's longitudinal direction on both sides, which are joined and fixed to the front floor panel 4. The crossbeam flanges 42 are fixed to the upper surface of the side beam 3 by spot welding or other methods.

[0089] More specifically, as described above, the front flange 42a of the crossbeam flange 42 in the vehicle's front direction is covered by the rear flange 32b of the second floor crossbeam 30, and the front flange 42a is fixed to the front floor panel 4, while the rear flange 42b of the crossbeam flange 42 in the vehicle's rear direction is directly fixed to the upper surface of the front floor panel 4.

[0090] Therefore, the third floor crossbeam 40, in its longitudinal section along the vehicle's longitudinal direction, has a closed section shape that, together with the front floor panel 4, extends along the vehicle width direction. The upper surface of the third floor crossbeam 40, which engages with the side beam 3, has approximately the same height as the upper surface of the side beam 3.

[0091] The console bracket 10 is a bracket for mounting console auxiliary equipment (not shown in the illustration). In the vehicle's longitudinal direction, it is arranged such that it extends from near the center of the inclined section 51 of the passageway 5 to the front of the first floor beam 20, covering the top of the passageway 5. Console auxiliary equipment includes a gearshift lever, an operation receiver (button), a rotary operation receiver, or components supporting the above.

[0092] like Figure 5 As shown, in the console bracket 10, a pair of left and right ridge portions 10a extending at a predetermined interval along the vehicle's front-rear direction in the vehicle width direction are formed on the upper part. In the longitudinal section along the vehicle width direction, the console bracket 10 has an approximately inverted concave shape with an open section at the bottom of the vehicle.

[0093] More specifically, the console bracket 10 has, in its longitudinal section along the vehicle width direction, a pair of first portions 11 disposed on both outer sides in the vehicle width direction and having ridge portions 10a, and a second portion 12 disposed between each of the first portions 11 and disposed below the vehicle than the upper surface portion 111 of the first portions 11.

[0094] Part 11 has a generally horizontal upper surface portion 111 in a longitudinal section along the vehicle width direction, an outer surface portion 112 extending downward from the outer side of the upper surface portion 111 in the vehicle width direction, and an inner surface portion 113 extending downward from the inner side of the upper surface portion 111 in the vehicle width direction. A bracket flange 114 fixed to the side of the passage portion 5 is provided at the lower end of the outer surface portion 112. The side of the passage portion 5 forms part of the front floor panel 4.

[0095] An ridge portion 10a is formed at the corner of the upper surface portion 111 and the outer surface portion 112, and an ridge portion 10a is also formed at the corner of the upper surface portion 111 and the inner surface portion 113. Furthermore, as described later, the ridge portion 10a formed at the corner of the upper surface portion 111 and the outer surface portion 112 extends along the ridge portion 5a of the channel portion 5.

[0096] like Figure 4 As shown, the upper surface portion 111 has a first front portion 115 that is generally horizontal in the vehicle's longitudinal direction, a first inclined portion 116 that slopes downward toward the rear of the vehicle in a generally stepped manner, and a first rear portion 117 that is generally horizontal in the vehicle's longitudinal direction. Two generally horizontal mounting portions 116a are provided on the first inclined portion 116 that slopes downward toward the rear of the vehicle in a generally stepped manner, and these horizontal mounting portions 116a are spaced apart in the vehicle's longitudinal direction. However, the edges 10a of the generally horizontal mounting portions 116a are smoothly and continuously formed. Welded bolts 118 that protrude upward toward the vehicle for mounting console auxiliary equipment are provided on the horizontal mounting portions 116a and the first rear portion 117 of the first inclined portion 116.

[0097] Furthermore, in Part 111, the outer face 112, which is the outer side in the vehicle width direction, is provided with a rib arch 119 that protrudes outward in the vehicle width direction and extends in the vertical direction of the vehicle.

[0098] In detail, in the outer face 112, a plurality of rib arches 119 are provided at a predetermined interval in the vehicle longitudinal direction, corresponding to the first inclined portion 116 and the first rear portion 117 in the upper face 111.

[0099] In addition, the inner side portion 113 is an inclined surface that slopes inward towards the vehicle width direction as it moves downward towards the vehicle. The length of the inclined surface in the direction towards the rear of the vehicle increases as it is located further behind the vehicle than the first front portion 115.

[0100] The second part 12 is formed substantially horizontally in a longitudinal section along the vehicle width direction, and connects to the lower ends of the inner side portions 113 of the first part 11 located on both sides of the vehicle width direction. Therefore, the second part 12 is positioned above the upper surface of the passage portion 5, and positioned below the vehicle surface portion 111 of the first part 11.

[0101] like Figure 6 As shown, the second part 12 has a second front part 121 that is generally horizontal in the vehicle's longitudinal direction and a second rearward inclined part 122 that slopes towards the rear of the vehicle and downwards.

[0102] More specifically, the second front portion 121 of the second part 12 corresponds to the first front portion 115 of the first part 11 in the longitudinal direction of the vehicle, and the second rear inclined portion 122 is formed at a position corresponding to the first inclined portion 116 and the first rear portion 117 in the first part 11. The bracket bend 123 is located between the second front portion 121 and the second rear inclined portion 122.

[0103] Furthermore, in the second part 12, the front end of the second front part 121 engages with the inclined section 51 of the passageway 5, and the rear end of the second rear inclined section 122 engages with and is fixed to the front flange 22a of the spanning section 21 of the first floor beam 20, which is engaged with and fixed to the passageway 5. The second part 12, the inclined section 51, and the front flange 22a are fixed by welding, such as spot welding.

[0104] Furthermore, the bracket flange 114, located at the lower end of the outer surface 112 of the first part 11, is joined and fixed to the lower side of the passage portion 5, which forms part of the front floor panel 4. The rear end of the bracket flange 114 is joined and fixed to the front flange 22a of the span portion 21 of the first floor crossbeam 20, which is joined and fixed to the passage portion 5. The bracket flange 114 and the side of the passage portion 5 are joined and fixed by welding methods such as spot welding.

[0105] Therefore, the console bracket 10, which is configured as described above and whose second part 12 is fixed to the front flange 22a of the passage section 5 and the first floor beam 20, is fixed in the vehicle longitudinal direction from near the center of the passage inclined portion 51 in the passage section 5 to the front of the first floor beam 20 in front of the vehicle in such a way that it covers the top of the passage section 5.

[0106] At this time, as Figures 1 to 3 As shown, the console bracket 10 is configured such that the ridge portion 10a formed on the outer side of the first part 11 in the vehicle width direction is along the ridge portion 5a of the passage portion 5.

[0107] And, as Figure 3 and Figure 6 As shown, the console bracket 10 is positioned with a small gap between it and the front surface of the first floor beam 20 in the vehicle's longitudinal direction, and the bracket bend 123 of the second part 12 is positioned further forward of the vehicle than the passage bend 53 of the passage part 5.

[0108] In addition, in the longitudinal section along the vehicle width direction, the console bracket 10 has an open cross-section shape, but the bracket flange 114 located at the front end of the outer face 112 engages with the side of the passage portion 5. Therefore, the console bracket 10 and the passage portion 5 can form a closed cross-section, which can improve the rigidity of the passage portion 5 and the console bracket 10 against collision loads from the front of the vehicle.

[0109] Further, as Figure 5 (c) The first portion 11 of the console bracket 10, which covers the tunnel portion 5 from above the vehicle, overlaps the first floor cross member 20, which spans the tunnel portion 5 in the vehicle width direction, in the vehicle front-rear direction.

[0110] As described above, in the lower body structure of the vehicle 1 in which the tunnel portion 5 protruding upward of the vehicle is formed at the vehicle width direction center of the front floor panel 4 and the tunnel portion 5 has the left and right pair of ridge lines 5a extending in the vehicle front-rear direction, the lower body structure of the vehicle 1 is provided with the left and right pair of side members 3 extending in the vehicle front-rear direction at the vehicle width direction both end of the front floor panel 4, the first floor cross member 20 spanning the left and right pair of side members 3 in the vehicle width direction and fixed to the upper surface of the front floor panel 4 across the tunnel portion 5, and the console bracket 10 covering the tunnel portion 5 from above the vehicle in front of the first floor cross member 20 and having an opening cross-sectional shape opening downward of the vehicle and extending in the vehicle front-rear direction. The console bracket 10 has the left and right pair of first portions 11 protruding upward of the vehicle along the left and right pair of ridge lines 5a of the tunnel portion 5 and mounting the console auxiliary equipment at the upper surface portion 111 and the second portion 12 positioned between the left and right pair of first portions 11 and at a position lower of the vehicle than the upper surface portion 111 of the first portion 11.

[0111] Therefore, the lower body structure of the vehicle 1 can ensure the desired frontal collision performance and can mount the console auxiliary equipment.

[0112] Specifically, in the lower body structure of the vehicle 1 in which the tunnel portion 5 protruding upward of the vehicle is formed at the vehicle width direction center of the front floor panel 4 and the tunnel portion 5 has the left and right pair of ridge lines 5a extending in the vehicle front-rear direction, the lower body structure of the vehicle 1 is provided with the first floor cross member 20 spanning the left and right pair of side members 3 extending in the vehicle front-rear direction at the vehicle width direction both end of the front floor panel 4 in the vehicle width direction and fixed to the upper surface of the front floor panel 4 across the tunnel portion 5, and the console bracket 10 covering the tunnel portion 5 from above the vehicle in front of the first floor cross member 20 and having an opening cross-sectional shape opening downward of the vehicle and extending in the vehicle front-rear direction.

[0113] And the console bracket 10 has the left and right pair of first portions 11 protruding upward of the vehicle along the left and right pair of ridge lines 5a of the tunnel portion 5 and mounting the console auxiliary equipment at the upper surface portion 111 and the second portion 12 positioned between the left and right pair of first portions 11 and at a position lower of the vehicle than the upper surface portion 111 of the first portion 11.

[0114] Therefore, the left and right pair of first portions 11 protrude toward the vehicle upper side along the left and right pair of ridge portions 5a of the tunnel portion 5 protruding toward the vehicle upper side, and the upper surface portions 111 thereof are capable of being positioned at a prescribed height with respect to the front floor panel 4.

[0115] Therefore, the console auxiliary equipment installed on the upper surface portions 111 of the first portions 11 can be placed at an appropriate height.

[0116] On the other hand, the second portions 12 positioned between the left and right pair of first portions 11 and positioned at a position lower than the upper surface portions 111 of the first portions 11 in the vehicle lower side are fixed to the tunnel portion 5 and the first floor cross member 20. Therefore, the tunnel portion 5 and the first floor cross member 20 can be connected in a load-transferring manner without affecting the installation of the console auxiliary equipment.

[0117] Therefore, the lower body structure of the vehicle 1 enables the console bracket 10 to function as a load-transferring member, and enables the console bracket 10 to cooperate with the tunnel portion 5 to smoothly transfer a collision load from the vehicle front side to the vehicle rear side via the first floor cross member 20 and the side members 3.

[0118] Therefore, the console bracket 10 has the second portions 12 fixed to the tunnel portion 5 and the first floor cross member 20, and the lower body structure of the vehicle 1 having the console bracket 10 can install the console auxiliary equipment at a prescribed height and can ensure a desired frontal crash performance.

[0119] In addition, a front flange 22a fixed to the front floor panel 4 is provided on the vehicle front side of the first floor cross member 20, and the first portions 11 are fixed to the front flange 22a of the first floor cross member 20. Specifically, the vehicle rear side end portion of a bracket flange 114 provided at the lower end of the outer side portion 112 of the first portion 11 is engaged and fixed to the front flange 22a of the first floor cross member 20.

[0120] Therefore, the lower body structure of the vehicle 1 fixes the first portions 11 to the first floor cross member 20. Therefore, it is possible to improve the rigidity of the console bracket 10 with respect to a collision load from the vehicle front side input from the tunnel portion 5.

[0121] Therefore, the lower body structure of the vehicle 1 can reliably transfer a collision load from the vehicle front side input from the tunnel portion 5 to the first floor cross member 20.

[0122] In addition, a front flange 22a fixed to the front floor panel 4 is provided on the vehicle front side of the first floor cross member 20, and the second portions 12 are fixed to the front flange 22a of the first floor cross member 20.

[0123] Therefore, the lower body structure of the vehicle 1 can join the second portion 12 to the first floor cross beam 20 via the front flange 22a provided on the front side of the vehicle to fix the first floor cross beam 20 to the front floor panel 4.

[0124] Therefore, the second portion 12 can be connected to the first floor cross beam 20 with a simple structure and easily assembled.

[0125] Therefore, the lower body structure of the vehicle 1 can input the collision load from the front of the vehicle, which is input from the tunnel portion 5, to the first floor cross beam 20 from the cross beam flange 22 and smoothly transfer the load to the rear of the vehicle via the first floor cross beam 20 and the side beam 3.

[0126] In addition, the upper surface of the tunnel portion 5 has a tunnel inclined portion 51 that inclines upward of the vehicle as it goes forward of the vehicle and a tunnel rear portion 52 that is disposed at a position rearward of the vehicle of the tunnel inclined portion 51 and extends in the front-rear direction of the vehicle, the console bracket 10 is disposed at a position that covers a tunnel bend portion 53 formed between the tunnel inclined portion 51 and the tunnel rear portion 52, and the second portion 12 is connected to the tunnel inclined portion 51.

[0127] Therefore, in the lower body structure of the vehicle 1, the second portion 12 of the console bracket 10 that covers the tunnel portion 5 from above of the vehicle is connected to the tunnel inclined portion 51 forward of the first floor cross beam 20 and covers the tunnel bend portion 53 formed between the tunnel inclined portion 51 and the tunnel rear portion 52.

[0128] Therefore, in the lower body structure of the vehicle 1, the inclination angle in the longitudinal section along the front-rear direction of the vehicle changes between the tunnel inclined portion 51 and the tunnel rear portion 52 that form the tunnel bend portion 53, so the rigidity of the tunnel portion 5 in the front-rear direction of the vehicle is likely to decrease, but the second portion 12 that is connected to the tunnel inclined portion 51 and the first floor cross beam 20 covers the tunnel bend portion 53 whose rigidity is likely to decrease.

[0129] Therefore, in the lower body structure of the vehicle 1, the second portion 12 that is connected to the tunnel inclined portion 51 and the cross beam flange 22 of the first floor cross beam 20 reinforces the tunnel portion 5 whose rigidity is low against the collision load from the front of the vehicle via the console bracket 10 and can smoothly transfer the collision load from the front of the vehicle from the tunnel portion 5 to the rear of the vehicle via the first floor cross beam 20 and the side beam 3.

[0130] In addition, the second portion 12 has a second front portion 121 that extends in the front-rear direction of the vehicle and is separated upward of the vehicle from the upper surface of the tunnel portion 5 and a second rear inclined portion 122 that is disposed at a position rearward of the vehicle of the second front portion 121 and inclines downward of the vehicle as it goes rearward of the vehicle.

[0131] Thus, the lower vehicle body structure of the vehicle 1 is configured such that the second front portion 121 of the second portion 12, which is disposed at a position lower than the upper surface portion 111 of the first portion 11, is separated upward from the upper surface of the tunnel portion 5, and the second rear inclined portion 122 is inclined toward the beam flange 22 of the first floor cross member 20.

[0132] Thus, compared with a case where the second front portion 121 is inclined along the tunnel inclined portion 51, the lower vehicle body structure of the vehicle 1 can ensure a cross-sectional area in the vehicle width direction at the second front portion 121 of the second portion 12. Thus, the lower vehicle body structure of the vehicle 1 can improve the rigidity of the vehicle body against the collision load from the front of the vehicle.

[0133] On the other hand, compared with a case where the rear portion of the console bracket 10 extends in the vehicle up-down direction, the lower vehicle body structure of the vehicle 1 can moderate the connection direction to the first floor cross member 20 by the second rear inclined portion 122 of the second portion 12. Thus, the collision load from the front of the vehicle, which is input from the tunnel inclined portion 51, can be smoothly transmitted to the first floor cross member 20.

[0134] Thus, in the lower vehicle body structure of the vehicle 1, the collision load from the front of the vehicle, which is input to the tunnel portion 5, can be smoothly transmitted rearward of the vehicle, together with the tunnel portion 5, via the first floor cross member 20 and the side members 3.

[0135] In addition, the bracket bend portion 123 formed between the second front portion 121 and the second rear inclined portion 122 is disposed at a different position in the vehicle front-rear direction from the tunnel bend portion 53.

[0136] Thus, in the lower vehicle body structure of the vehicle 1, the bracket bend portion 123 of the console bracket 10 and the tunnel bend portion 53, which are low in rigidity against the collision load from the front of the vehicle, are not coincident in the vehicle front-rear direction.

[0137] Thus, the lower vehicle body structure of the vehicle 1 can improve the rigidity of the vehicle body in the vicinity of the tunnel bend portion 53 against the collision load from the front of the vehicle.

[0138] Thus, the lower vehicle body structure of the vehicle 1 can more efficiently transmit the collision load from the front of the vehicle rearward of the vehicle.

[0139] In addition, the bracket bend portion 123 formed between the second front portion 121 and the second rear inclined portion 122 is located forward of the vehicle from the tunnel bend portion 53.

[0140] Thus, the lower vehicle body structure of the vehicle 1 can set the length of the second rear inclined portion 122 relatively long.

[0141] Therefore, the tilt angle of the second rear tilting portion 122 can be reduced, that is, the angle of the bracket bending portion 123 in the console bracket 10 is set to be relatively large.

[0142] Therefore, compared to the steeper tilt angle of the second rear inclined section 122, the lower body structure of vehicle 1 can improve the rigidity of the console bracket 10. As a result, the lower body structure of vehicle 1 can smoothly and efficiently transfer collision loads from the front of the vehicle to the rear.

[0143] In addition, viewed from the front and rear of the vehicle, the first part 11 overlaps with the first floor crossbeam 20.

[0144] Therefore, in the lower body structure of vehicle 1, the first part 11 on both sides of the second part 12 in the vehicle width direction is positioned in front of the first floor crossbeam 20.

[0145] Therefore, the lower body structure of vehicle 1 enables the center of gravity axis of console bracket 10 along the vehicle front-rear direction in the vertical section of console bracket 10 in the vehicle width direction to be close to the center of gravity axis of first floor beam 20 along the vehicle width direction in the vertical section of first floor beam 20 in the vehicle front-rear direction in the vertical direction.

[0146] Therefore, the lower body structure of vehicle 1 can smoothly transfer the collision load from the front of the vehicle between the second part 12 and the first floor crossbeam 20 connected by the crossbeam flange 22, and can transfer it to the rear of the vehicle more efficiently through the first floor crossbeam 20 and the side beam 3.

[0147] Furthermore, in the lower body structure of vehicle 1, the first portions 11 on both sides of the second portion 12 in the vehicle width direction are positioned in front of the first floor crossbeam 20. Therefore, in the event of a frontal collision, even if the passageway 5 were to move backward, the console bracket 10 and the first floor crossbeam 20 can prevent the passageway 5 from moving backward. At this time, the collision load from the front of the vehicle can be applied to the second portion 12 and transmitted to the first floor crossbeam 20 via the first portions 11. Therefore, the lower body structure of vehicle 1 can reliably prevent the passageway 5 from moving backward.

[0148] like Figure 5 As shown, the inner side portion 113 of the first part 11 is formed by an inclined surface that slopes inwards towards the vehicle width direction as it moves downwards from the vehicle, such that the inclined length of the inner side portion 113 increases towards the rear of the vehicle. Therefore, in the longitudinal section along the vehicle width direction, the length of the first part 11 below the vehicle in the vehicle width direction increases, while the length of the second part 12 in the vehicle width direction decreases. Consequently, when viewed from the front-rear direction of the vehicle, the overlapping area of ​​the first part 11 of the console bracket 10 and the first floor crossbeam 20 increases. Therefore, the aforementioned effects can be achieved more effectively.

[0149] Further, as described above, the second portion 12 that is fixed to the tunnel portion 5 and the first floor cross member 20 and that transmits the collision load from the front of the vehicle is shorter in the vehicle width direction length in the longitudinal section along the vehicle width direction. Thus, the cross-sectional strength of the second portion 12 in the longitudinal section along the vehicle width direction orthogonal to the vehicle front-rear direction that is the load transmission direction can be increased compared to the second portion with a wide width. Therefore, the second portion 12 can more efficiently transmit the collision load from the tunnel portion 5 to the first floor cross member 20.

[0150] Further, as described above, Figure 4 As shown in FIG. 6, the first inclined portion 116 of the upper surface portion 111 in the first portion 11 is provided with a horizontal placement portion 116a, but the ridge line portion 10a passing through the substantially horizontal horizontal placement portion 116a is smoothly continuously formed. Thus, the console bracket 10 can function as a load transmission member that cooperates with the tunnel portion 5 to more smoothly transmit the collision load from the front of the vehicle to the rear of the vehicle via the first floor cross member 20 and the side member 3.

[0151] The first portion 11 is fixed to the tunnel portion 5. Specifically, the bracket flange 114 provided at the lower end of the outer side portion 112 of the first portion 11 is engaged and fixed to the side surface of the tunnel portion 5.

[0152] Thus, the lower body structure of the vehicle 1 can fix the first portions 11 on both sides in the vehicle width direction in the console bracket 10 to the tunnel portion 5 that is a part of the front floor panel 4 or the vicinity of the tunnel portion 5.

[0153] Thus, the lower body structure of the vehicle 1 can firmly fix the console bracket 10 to the front floor panel 4 and can increase the rigidity of the front floor panel 4 and the console bracket 10.

[0154] Thus, the lower body structure of the vehicle 1 can suppress the vibration generated in the console bracket 10 and the front floor panel 4.

[0155] Further, the inner side portion 113 of the first portion 11 provided on both sides in the vehicle width direction of the console bracket 10 is provided with a rib arch 119. Thus, the shape maintainability of the inner side portion 113 can be increased. Therefore, the rigidity of the console bracket 10 is increased, and the rigidity of the front floor panel 4 to which the console bracket 10 is fixed by the bracket flange 114 is also increased. Thus, the shape maintainability of the console bracket 10 and the front floor panel 4 can be increased, and the vibration suppression effect when the console bracket 10 or the front floor panel 4 generates the panel vibration can be exerted.

[0156] Further, as described above, Figure 3 and Figure 6As shown, a slight gap is provided between the vehicle rear end of the console bracket 10 and the front surface of the first floor cross member 20 in the vehicle longitudinal direction. Therefore, the assembly of the console bracket 10, which is disposed from the vicinity of the center of the channel inclined portion 51 in the channel portion 5 to the vehicle front of the first floor cross member 20 and covers the vehicle upper portion of the channel portion 5 in the vehicle longitudinal direction, can be improved.

[0157] In the correspondence of the structure of the present application to the above-described embodiment, The floor panel of the present application corresponds to the front floor panel 4, The following is also the same, The cross member corresponds to the first floor cross member 20, The upper surface corresponds to the upper surface portion 111, The flange corresponds to the cross member flange 22, The front portion corresponds to the second front portion 121, The rear inclined portion corresponds to the second rear inclined portion 122, The bent portion corresponds to the bracket bent portion 123, However, the present application is not limited to the structure of the above-described embodiment, and various embodiments can be obtained.

[0158] For example, in the above-described embodiment, the bracket flange 114 provided at the lower end of the outer side surface portion 112 of the first portion 11 is joined and fixed to the side lower portion of the channel portion 5, but can be fixed to a portion adjacent to the channel portion 5 on the outer side in the vehicle width direction.

[0159] The above-described second portion 12 is fixed to the channel inclined portion 51 of the channel portion 5 and the front flange 22a of the first floor cross member 20, but can be directly fixed to the channel rear portion 52 of the channel portion 5 and the main body of the first floor cross member 20.

[0160] In addition, the cross member flanges 22, 32, 42 of the floor cross members 20, 30, 40 and the bracket flange 114 of the first portion 11 and the second portion 12 are joined and fixed by welding such as spot welding, but can be fastened and joined by a bolt, fixed by a rivet, or fixed by welding such as spot welding.

[0161] [Number Explanation] 1… vehicle 3… side member 4… front floor panel 5… channel portion 5a… ridge portion 10… console bracket 11… first portion 12… second portion 20… first floor cross member 22… cross member flange 51 channel inclined portion 52 channel rear portion 53 channel curved portion 111 upper surface portion 121 second front portion 122 second rear inclined portion 123 cradle curved portion

Claims

1. A lower body structure for a vehicle, characterized in that: A passage portion protruding upwards from the center of the floor panel in the vehicle width direction is formed, and the passage portion has paired left and right ridge portions extending in the vehicle front-rear direction. The lower body structure of the vehicle includes: The left and right sides are paired side beams that extend along the front-rear direction of the vehicle at both ends of the floor panel in the vehicle width direction. A crossbeam, which spans the passageway and connects the left and right pairs of side beams in the vehicle width direction and is fixed to the upper surface of the floor panel; A console bracket, which covers the passageway from above the vehicle in front of the crossbeam and has an opening cross-sectional shape that opens downwards towards the vehicle and extends in the longitudinal direction of the vehicle; wherein, The console bracket has: The first part, which is a pair of left and right sides, protrudes upwards along the left and right pairs of ridges and has a console auxiliary device mounted on its upper surface; The second part is located between the two paired first parts and is positioned below the vehicle than the upper surface of the first part; The second part is fixed to the channel section and the crossbeam.

2. The lower body structure of the vehicle according to claim 1, characterized in that: A flange fixed to the floor panel is provided on the front side of the crossbeam of the vehicle. The first part is fixed to the flange of the crossbeam.

3. The lower body structure of the vehicle according to claim 1, characterized in that: A flange fixed to the floor panel is provided on the front side of the crossbeam of the vehicle. The second part is fixed to the flange of the crossbeam.

4. The lower body structure of the vehicle according to claim 3, characterized in that: The upper surface of the channel portion has: The inclined portion of the passage slopes upwards and towards the vehicle as it moves further in front of it. The rear portion of the passage is positioned behind the vehicle and extends along the front-rear direction of the vehicle, compared to the inclined portion of the passage. The console bracket is positioned to cover the bend in the channel formed between the inclined portion and the rear portion of the channel; The second part is connected to the inclined portion of the channel.

5. The lower body structure of the vehicle according to claim 4, characterized in that: The second part has: The front portion extends along the longitudinal direction of the vehicle and separates from the upper surface of the passage portion toward the top of the vehicle; The rearward inclined portion is positioned further back from the vehicle than the front portion, and tilts downwards towards the rear of the vehicle.

6. The lower body structure of the vehicle according to claim 5, characterized in that: The bend formed between the front portion and the rear inclined portion is located at a different position from the channel bend in the longitudinal direction of the vehicle.

7. The lower body structure of the vehicle according to claim 5, characterized in that: The bend formed between the front portion and the rear inclined portion is located in front of the vehicle, which is closer to the front of the passage bend than the bend in the passage.

8. The lower body structure of the vehicle according to claim 1, characterized in that: Viewed from the front-rear direction of the vehicle, the first part overlaps with the crossbeam.

9. The lower body structure of the vehicle according to any one of claims 1 to 8, characterized in that: The first part is fixed to the channel portion or near the channel portion.

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