JP6252643B1 - Vehicle floor structure - Google Patents

Abstract

In a vehicle floor structure having a rear foot duct for supplying conditioned air to a third row seat, the center portion of the second row is a passage portion to the third row, and is arranged in the passage portion. Suppresses deformation and breakage of the rear foot duct due to the passenger's stepping load generated on the upper surface of the rear foot duct. A duct protection member 40 that is fixed to a kick-up portion 33 and protects a rear foot duct includes a load receiving portion that covers the intermediate duct portions 22 and 22 of the rear foot duct from above, and the intermediate duct portions 22 and 22. A load support portion 43a, 43a ′, 43b, 44 that is positioned between the kick-up portion 33 and abuts against the kick-up portion 33 when a load is applied to the load receiving portion; By receiving at 43a, 43a ', 43b, 44 and the contact surface Z of the kick-up part 33, it is avoided that a load is directly applied to the intermediate duct parts 22, 22, and deformation and breakage of the rear foot duct can be prevented. [Selection] Figure 6

Description

  The present invention relates to a vehicle floor structure, and more particularly to a vehicle floor structure having a rear foot duct for supplying conditioned air to the rear side of a passenger compartment.

In a vehicle in which three rows of seats are arranged in the vehicle longitudinal direction in the vehicle interior,
The rear air conditioning unit is a technology that arranges the rear air conditioning unit in the center console provided in the center of the vehicle width direction of the passenger compartment and supplies conditioned air to the feet of passengers seated on the third row seats from the rear air conditioning unit. There is known a rear foot duct that extends to the lower side of the second row seat and supplies the conditioned air output from the rear air conditioning unit to the feet of passengers seated on the third row seat.

  Patent Document 1 shows a vehicle 100 having a rear foot duct 120 as shown in FIG. A vehicle floor of the vehicle 100 includes a front floor 132 that forms a front floor surface of a passenger compartment, a kick-up portion 133 that is provided behind the front floor 132 and includes a vertical wall that rises upward. A rear floor 134 that forms the rear floor of the chamber is provided. Although not shown, the first row seats are arranged on the front floor 132, and the second and third row seats are arranged on the rear floor 134, respectively. In addition, a tunnel portion 135 that extends in the longitudinal direction of the vehicle body and bulges upward is formed at the center of the front floor 132 in the vehicle width direction.

  The rear foot duct 120 is connected to a rear air conditioning unit 115 whose front end is disposed in a center console (not shown), and is disposed above the tunnel portion 135 and extends in the vehicle front-rear direction. Vehicle part width, a pair of left and right intermediate duct parts 122, 122 extending in the vehicle width direction from the rear end of the front duct part 121 in front of the kick-up part 133 and extending in the vehicle width direction. The rear duct portions 123 and 123 extend rearward from the end portion on the outer side in the direction, ride on the kick-up portion 133, and supply conditioned air at the feet of the occupants seated on the third row seats.

  The rear foot duct 120 is fixed to the upper end portion of the kick-up portion 133 with a bolt, but there is no support member or the like below the intermediate duct portions 122 and 122 and is close to the kick-up portion 133. In addition, it is arranged in a floating state located above the front floor 132 with a space therebetween. The rear foot duct 120 is provided with openings 122a and 122a for supplying conditioned air to the feet of passengers seated on the second row seats in the intermediate duct portions 122 and 122.

JP 2016-120801 A

  By the way, in a vehicle having a third row of seats, there may be a case where the center of the second row of seats is provided not as a seat but as a passage that can pass through to the third row.

  In this case, in the vehicle described in Patent Document 1, when the center of the second row is a passage, this passage is provided at the center in the vehicle width direction of the vehicle, and the rear foot duct 120 is also in the vehicle width direction of the vehicle in the same manner as the passage. Since it is arranged in the center, when the occupant passes from the second row to the third row, the occupant passes over the rear foot duct 120, and the occupant's stepping load may be applied to the rear foot duct 120.

  In particular, the intermediate duct portions 122 and 122 arranged in front of the kick-up portion 133 of the rear foot duct 120 do not have a support member or the like on the lower side as described above, and the upper portion of the intermediate duct portions 122 and 122 is 2 above. In the rear foot duct 120 described in Patent Document 1 covered with the row seats, the rigidity to withstand the occupant's stepping load is not ensured. Therefore, when this rear foot duct 120 is applied to a vehicle having a passage in the center of the second row, there is a possibility that the intermediate duct portions 122, 122 may be deformed or damaged to be bent downward by the stepping load.

  Accordingly, the present invention provides a passage from the second row to the third row in a vehicle floor structure having a rear foot duct that supplies the conditioned air output from the rear air conditioning unit to the feet of passengers seated on the third row seat. It is an object of the present invention to prevent deformation and breakage of the rear foot duct due to a stepping load generated when the passenger moves to the third row while stepping on the upper surface of the rear foot duct disposed in the portion.

  In order to solve the above problems, a vehicle floor structure according to the present invention is configured as follows.

First, the invention described in claim 1
Rear that has a first row seat, a second row seat, and a third row seat from the front side of the vehicle, and that supplies conditioned air from an air conditioning unit disposed at the front of the vehicle to the feet of a passenger sitting on the third row seat A vehicle floor structure provided with a foot duct,
A duct protection member for protecting the rear foot duct is provided,
The duct protection member is fixed to the upper end portion of the kick-up portion provided on the floor,
A load receiving portion that covers an intermediate duct portion extending in the vehicle width direction in front of the kick-up portion in the rear foot duct from above;
A load support portion that is located between the intermediate duct portion of the rear foot duct and the kick-up portion and supports the load by contacting the kick-up portion when a load is applied to the load receiving portion;
It is characterized by having.

The invention according to claim 2 is the invention according to claim 1,
The duct protection member forms a closed cross section between the load receiving portion and the load support portion.

The invention according to claim 3 is the invention according to claim 1,
The load receiving portion is provided to extend on both sides across the tunnel portion of the vehicle body,
The load support part is provided on both sides of the tunnel part.

The invention according to claim 4 is the invention according to any one of claims 1 to 3,
On the front surface of the intermediate duct portion, an opening serving as a blowing portion of the conditioned air to the feet of the passenger sitting on the second row seat is provided,
The load receiving portion is disposed so as to correspond to the upper portion of the opening.

  First, according to the first aspect of the present invention, the load receiving portion that covers the intermediate duct portion extending in the vehicle width direction in front of the kick-up portion in the rear foot duct from above, the intermediate duct portion, and the kick-up portion, And a load support portion that supports the load by contacting the kick-up portion when a load is applied to the load receiving portion. Since it is received at the kick-up portion, it can be avoided that a load is directly applied to the rear foot duct, and deformation and breakage of the rear foot duct can be prevented. In particular, when the center of the second row seat is a passage portion for moving the occupant to the third row seat, the rear foot duct is prevented from being deformed or damaged due to the occupant's stepping load.

  According to the present invention, since the rear foot duct can be prevented from being deformed or damaged only by adding a duct protection member, the rear foot duct used in a vehicle that is used as a seat without the passage in the second row. Even if the specification is not reinforced to increase the rigidity of the second row, it can be applied to a vehicle having the second row seat central portion as a passage portion.

  According to the invention described in claim 2, the duct protection member is improved in rigidity by forming a closed cross section between the load receiving portion and the load support portion. Therefore, the load acting on the load receiving part generates a moment centered on the fixed part at the upper end of the kick-up part, and when this moment is received by the kick-up part via the load support part, duct protection The deformation of the cross section of the member is suppressed, and the deformation of the load receiving portion itself is suppressed. Thereby, the step load applied to the rear foot duct can be more reliably suppressed.

  Furthermore, according to the invention described in claim 3, the load receiving portion extends on both sides across the tunnel portion, and on both sides of the tunnel portion, and a pair of rear foot ducts where a stepping load is applied. The load supporting portion is provided, so that the deformation of the duct protection member can be suppressed regardless of whether the load applied to the rear foot duct is applied from the left or right side, thereby preventing the rear foot duct from being deformed or damaged. Can be prevented.

  According to the fourth aspect of the present invention, when an opening serving as a blowing portion of the conditioned air to the feet of the passenger sitting on the second row seat is provided on the front surface of the intermediate duct portion, the load receiving portion is By disposing the opening above the opening, it is possible to suppress the deformation of the opening having a low rigidity, which serves as a blowing portion of the conditioned air to the feet of the occupant seated on the second row seat.

1 is a schematic plan view of a vehicle interior of a vehicle according to an embodiment of the present invention. It is a perspective view which shows the state by which the rear foot duct and the duct protection member are arrange | positioned on the floor. It is a top view which shows the state by which the rear foot duct and the duct protection member are arrange | positioned on the floor. It is sectional drawing by the AA line of FIG. It is sectional drawing by the BB line of FIG. It is sectional drawing by CC line of FIG. It is sectional drawing similar to FIG. 6 in other embodiment. It is a perspective view which shows the conventional example by which the rear foot duct was arrange | positioned on the floor.

  Hereinafter, an embodiment of a vehicle floor structure according to the present invention will be described.

  First, the configuration of the vehicle according to the present embodiment will be described with reference to FIG. On the floor 30 of the passenger compartment of the vehicle 1 having the rear foot duct according to the present embodiment, three rows of seats 11, 12, 13 are arranged in the longitudinal direction of the vehicle body. Hereinafter, the first row sheet 11, the second row sheet 12, and the third row sheet 13 are referred to from the front side.

  The first row seat 11 is composed of a pair of seats 11L and 11R that are separated to the left and right in the vehicle width direction. Similarly to the first row seat 11, the second row seat 12 is composed of a pair of seats 12L and 12R separated left and right in the vehicle width direction, and between the left and right seats 12L and 12R from the second row. A passage portion 31 for passing through the third row is provided.

  The floor 30 on which the respective seats 11, 12, 13 are arranged extends from the front floor 32 on which the first-row seats 11 are arranged, the kick-up portion 33 rising upward from the rear end thereof, and the rear from the upper end thereof, 2 A rear floor 34 on which the row seats 12 and the third row seats 13 are arranged. A tunnel portion 35 that extends in the longitudinal direction of the vehicle body and bulges upward is formed at the center of the front floor 32 in the vehicle width direction.

  A center console 14 is provided between the left and right seats 11L, 11R of the first row seat 11, and a rear air conditioning unit that generates conditioned air to be supplied to the rear of the vehicle interior is provided inside the center console 14. 15 is housed.

  A rear foot duct 20 is connected to the rear air conditioning unit 15. The rear foot duct 20 extends from the rear air conditioning unit 15 to below the second row seat 12, guides the conditioned air output from the rear air conditioning unit 15, and supplies it to the feet of passengers seated on the third row seat 13. In this embodiment, the conditioned air is also supplied to the feet of passengers seated on the second row seats 12.

  As shown in FIGS. 2 to 4, the rear foot duct 20 supplies the air-conditioning air introduction end 20 a output from the rear air-conditioning unit 15 and the feet of the occupants seated in the third row seat 13. And an air blowing end 20b. The rear foot duct 20 includes a front duct portion 21 extending in the longitudinal direction of the vehicle body, a pair of left and right intermediate duct portions 22 and 22 extending in the vehicle width direction from the rear end of the front duct portion 21, an intermediate duct portion 22, And rear duct portions 23, 23 extending rearward from the end portion on the outer side in the vehicle width direction of 22.

  And, at the introduction end 20a at the front end of the front duct portion 21, it is connected to the blower end of the rear air conditioning unit 15, and at the front end side of the rear duct portions 23, 23, the upper end portion of the kick-up portion 33 (the front end of the rear floor 34). Part) with bolts 24, 24.

  The front duct portion 21 is disposed above the tunnel portion 35 of the front floor 32, and the intermediate duct portions 22 and 22 are disposed close to the front of the kick-up portion 33, and the rear duct portions 23 and 23 are disposed. Is arranged on the rear floor 34.

  Here, the intermediate duct portions 22 and 22 are not supported on the lower side, and are arranged in a floating state so as to be spaced upward from the front floor 32 (see symbols a and a in FIG. 4). ). The intermediate duct portions 22 and 22 are provided with a pair of openings 22a and 22a symmetrically across the tunnel portion 35 for supplying conditioned air to the feet of passengers seated on the second row seats 12L and 12R. ing.

  On the other hand, a duct protection member 40 for protecting the intermediate duct portions 22, 22 is provided above the intermediate duct portions 22, 22, and fixed portions 41, 41 provided at the rear portion of the duct protection member 40. It is attached to the upper end portion of the kick-up portion 33.

  Next, the configuration of the duct protection member 40 will be described in detail with reference to FIGS.

  The duct protection member 40 covers the intermediate duct portions 22 and 22 of the rear foot duct 20 from above, extends across the tunnel portion 35 on both sides, the intermediate duct portions 22 and 22, and the kick-up portion 33. Between the first load support portions 43 and 43 and the second load support portions 44 and 44 that support the load by contacting the kick-up portion 33 when a load is applied to the load receiving portion 42. The load receiving portion 42 is formed with fixing portions 41 and 41 for attaching to the upper end portion of the kick-up portion 33. The load receiving portion 42, the first load support portions 43 and 43, and the second load support portions 44 and 44 are all made of a plate material.

  Here, the rear floor 34 is provided with seat rails 51, 51 of the second row seats 12L, 12R. The fixing portions 52, 52 of the seat rails 51, 51 are provided between the kick-up portion 33 and the rear floor 34, respectively. It is provided on the cross member 36 disposed at the corner.

  As shown in FIG. 3, the fixing portions 41, 41 of the load receiving portion 42 are formed at the upper end of the highly rigid kick-up portion 33 reinforced by the cross member 36, similar to the seat rails 51, 51. Between the fixing portions 52 and 52 of the seat rails 51 and 51, the fixing portions 52 and 52 of the seat rails 51 and 51 and the fixing portions 52 and 52 of the seat rails 51 are arranged in a line in the vehicle width direction in a vehicle plan view. Accordingly, the fixing portions 41 and 41 of the duct protection member 40 can be provided without lowering the fixing portions 52 and 52 of the second row seat 12 to the rear of the vehicle.

  As shown in FIG. 6, the load receiving portion 42 includes a first surface portion 42 a that extends forward from the rear of the intermediate duct portions 22, 22, an extension portion 42 a ′ that extends forward from the front end of the first surface portion 42 a, A second surface portion 42b extending rearwardly from the rear end portion of the surface portion 42a along the upper end portion of the kick-up portion 33, and the first surface portion 42a and the second surface portion 42b form a V-shaped cross section. The upper surface of the intermediate duct portions 22 and 22 is covered by the surface portion 42a and the extended portion 42a ′.

  Next, the first load support portions 43 and 43 and the second load support portions 44 and 44 will be described with reference to FIGS.

  The first load support portions 43, 43 are first surface portions 43a, 43a extending along the lower surface of the first surface portion 42a of the load receiving portion 42, and the first surface portion 43a, the lower surface of the first surface portion 42a of the load receiving portion 42, Extension portions 43a ′ and 43a ′ extending forward from the front end of 43a and second surface portions 43b and 43b extending downward from the rear ends of the first surface portions 43a and 43a so as to face the kick-up portion 33 are provided.

  The second load support portions 44, 44 extend up and down facing the front surface of the kick-up portion 33 behind the second surface portions 43 b, 43 b of the first load support portions 43, 43, and this second load support portion 44. , 44 is joined to the second surface portions 43b, 43b of the first load support portions 43, 43 by welding or the like, and the upper ends of the second load support portions 44, 44 are the second surface portions of the load receiving portion 42. 42b abuts.

  Further, the second load support portions 44, 44 are provided so as to overlap with the same width as the first load support portions 43, 43 in the vehicle front view (see FIG. 4), and the first load support portions 43, 43, and A pair of second load support portions 44, 44 are provided on both sides of the tunnel portion 35 at a position overlapping the openings 22 a, 22 a of the intermediate duct portions 22, 22 in the vehicle front view.

  And the 1st surface part 42a of the load receiving part 42, the front side part of the 1st surface parts 43a and 43a of the 1st load support parts 43 and 43, the extension part 42a 'of the load receiving part 42, and the 1st load support part 43 , 43 are welded to each other, and the second surface portion 42b of the load receiving portion 42 and the upper end portions of the second load supporting portions 44, 44 come into contact with each other, so that A closed cross section Y is formed between the two surface portions 42b, the first surface portions 43a and 43a of the first load support portions 43 and 43, and the second load support portions 44 and 44, thereby improving the rigidity of the duct protection member 40 itself. Is planned.

  As shown in FIG. 6, the floor 30 is covered with a floor mat 60, and the floor mat 60 positioned in front of the openings 22 a and 22 a of the intermediate duct portions 22 and 22 is used for supplying conditioned air. Grills 60a and 60a are provided.

  Next, the effect of the floor structure according to the present embodiment will be described.

  First, in the present embodiment, the duct protection member 40 for protecting the intermediate ducts 22 and 22 of the rear foot duct 20 includes a load receiving portion 42 that covers the intermediate duct portions 22 and 22 from above, the intermediate duct portion 22, The first load support portions 43, 43 and the second load support portions 44, 44 are provided between the load receiving portion 42 and the kick-up portion 33. The step load F is applied to the load receiving portion 42. Thus, since the second surface portions 43b and 43b of the first load support portions 43 and 43 and the second load support portions 44 and 44 are provided so as to contact the kick-up portion 33 when the load is applied, the load The moment M due to the stepping load F generated in the receiving portion 42 is the contact where the second surface portions 43b, 43b of the first load support portions 43, 43 and the second load support portions 44, 44 contact the kick-up portion 33. Surface Z You will receive it, as a result, it is avoided that the load directly to the intermediate duct portion 22, 22 is applied, it is possible to prevent the deformation or damage of the rear foot duct 20.

  Further, a closed cross-section Y is formed between the second surface portion 42b of the load receiving portion 42, the first surface portions 43a and 43a of the first load support portions 43 and 43, and the second load support portions 44 and 44. Thus, the rigidity of the duct protection member 40 itself is improved, and the moment M generated by the load acting on the load receiving portion 42 from above is transmitted through the first load support portions 43, 43 and the second load support portions 44, 44. Thus, when the kick-up portion 33 receives the cross-sectional deformation of the duct protection member 40, the deformation of the load receiving portion 42 itself is suppressed. Thereby, the stepping load concerning intermediate ducts 22 and 22 can be controlled more certainly.

  Further, a pair of first load support portions 43 and 43 and second load support portions 44 and 44 are provided on both sides of the tunnel portion 35 and on the rear portions of the intermediate duct portions 22 and 22 where the stepping load is applied. Therefore, even if the load is applied from either the left or right side of the tunnel portion 35, the deformation of the duct protection member 40 can be suppressed, whereby the rear foot duct 20 can be prevented from being deformed or damaged.

  In addition, a load receiving portion 42 is disposed above the openings 22a and 22a of the intermediate duct portions 22 and 22, and the first load support portions 43 and 43 and the second load support portions 44 and 44 are the openings 22a, Since it is provided at a position overlapping with 22a when viewed from the front of the vehicle, it is possible to avoid applying a load directly to the openings 22a and 22a having low rigidity, and to prevent the rear foot duct 20 from being deformed or damaged.

  Next, the floor structure of the vehicle body according to the second embodiment will be described with reference to FIG. In addition, about the component similar to 1st Embodiment, while attaching | subjecting the same code | symbol in FIG. 7, the description is abbreviate | omitted.

  In the second embodiment, the configurations of the first load support portions 243 and 243, the second load support portions 244 and 244, and the kick-up portion 233 of the duct protection member 240 are different from those of the first embodiment.

  FIG. 7 is an enlarged cross-sectional view showing a joint portion between the intermediate duct portions 22 and 22, the duct protection member 240 and the kick-up portion 233 and its peripheral portion in the second embodiment.

  As shown in FIG. 7, in the second embodiment, the duct protection member 240 that protects the intermediate duct portions 22, 22 includes the load receiving portion 242, the first load support portions 243, 243, and the second load support portion 244. 244, a fixed portion 241 is provided at the rear of the load receiving portion 242, and the first load support portions 243 and 243 and the second load support portions 244 and 244 are bolted by the bolts 245 and 245, respectively. It is fixed to the up portion 233.

  Accordingly, since the first load support portions 243 and 243 and the second load support portions 244 and 244 are fixed to the kick-up portion 233 when a load is applied to the load receiving portion 242, the load is the same as in the first embodiment. In addition to receiving the moment M due to the passenger's stepping load F generated at the receiving portion 242 at the kick-up portion 233, the bolts 245 and 245 can also receive the stepping load. Further, when noise is generated between the kick-up portion 233 and the first load support portions 243 and 243 and the second load support portions 244 and 244 due to vibration of the vehicle body, the noise is fixed by fixing with the bolts 245 and 245. Can be prevented.

  In addition, in this embodiment, although the load support part is comprised with two board | plate materials, you may be comprised with one board | plate material.

  Further, when the stepping load F is applied, the kick-up portion 33 is supported by the second load by providing a contact surface so that the second surface portions 43b, 43b of the first load support portions 43, 43 are in contact with the kick-up portion 33. You may comprise as a part.

  Further, in the present embodiment, the space between the intermediate duct portions 22 and 22 and the tunnel portion 35 is buried below the intermediate duct portions 22 and 22 disposed on the upper portion of the tunnel portion 35 and on the upper surface of the tunnel portion 35. A spacer 37 may be provided. As a result, the space between the tunnel portion 35 and the intermediate duct portions 22 and 22 that are assumed to be subject to a passenger's stepping load is filled, and the intermediate duct portions 22 and 22 can be prevented from being deformed or damaged also in the tunnel portion 35.

  The present invention can be widely used in vehicles having a second row seat and a third row seat and having a passage in the center portion of the second row seat.

1 Vehicle 11 First-row seat 12 Second-row seat 13 Third-row seat 14 Center console 15 Rear air conditioning unit 20 Rear foot duct 20a Inlet end 20b Fan end 21 Front duct portion 22 Intermediate duct portion 22a Opening portion 23 Rear duct portion 30 floor 31 passage portion 32 front floor 33 kick-up portion 34 rear floor 35 tunnel portion 36 cross member 40 duct protection member 41 fixing portion 42 load receiving portion 42a first surface portion 42a 'extension portion 42b second surface portion 43 first load support portion 43a 1st surface part 43a 'Extension part 43b 2nd surface part 44 2nd load support part Y Closed section Z Contact surface

Claims (4)

Rear that has a first row seat, a second row seat, and a third row seat from the front side of the vehicle, and that supplies conditioned air from an air conditioning unit disposed at the front of the vehicle to the feet of a passenger sitting on the third row seat A vehicle floor structure provided with a foot duct,
A duct protection member for protecting the rear foot duct is provided,
The duct protection member is fixed to the upper end portion of the kick-up portion provided on the floor,
A load receiving portion that covers an intermediate duct portion extending in the vehicle width direction in front of the kick-up portion in the rear foot duct from above;
A load support portion that is located between the intermediate duct portion of the rear foot duct and the kick-up portion and supports the load by contacting the kick-up portion when a load is applied to the load receiving portion;
A vehicle floor structure characterized by comprising:   2. The vehicle floor structure according to claim 1, wherein the duct protection member forms a closed cross section between the load receiving portion and the load support portion. The load receiving portion is provided to extend on both sides across the tunnel portion of the vehicle body,
The vehicle floor structure according to claim 1, wherein the load support portions are provided on both sides of the tunnel portion. On the front surface of the intermediate duct portion, an opening serving as a blowing portion of the conditioned air to the feet of the passenger sitting on the second row seat is provided,
4. The vehicle floor structure according to claim 1, wherein the load receiving portion is disposed so as to correspond to the upper portion of the opening. 5.

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