Vehicle floor mat structure

Abstract

To solve a problem of conventional vehicles that a floor mat blocks conditioned air to make it difficult to blow the air to the rear seat side.SOLUTION: In a vehicle floor mat structure 10, a floor mat 21 located below a front seat 12 includes: openings 22A, 22B serving as air channels of conditioned air; and an inclined part 23 formed at the rear seat 13 side relative to the openings 22A, 22B. The structure allows conditioned air blown to an area below the front seat 12 to flow to the rear seat 13 side through the inclined part 23 efficiently. The conditioned air is guided to feet R, L of an occupant P seated on the rear seat 13 to realize a comfort ride environment and an air-conditioning environment for the occupant P.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a floor mat structure for a vehicle. [Background technology]

[0002] A conventional air conditioning duct arrangement structure is disclosed in, for example, Patent Document 1. On the driver's seat side of the vehicle, a pair of slide rails are arranged on the upper surface of the front floor and extend in the longitudinal direction of the vehicle along a floor tunnel. The front seat is arranged so as to be slidable in the longitudinal direction of the vehicle via the slide rails. An installation space for installing the slide rails and the like is formed between the seat cushion of the front seat and the front floor.

[0003] An air conditioning duct for blowing conditioned air to rear seat passengers leads out from the front panel in front of the front seats. The air conditioning duct extends along the floor tunnel into the installation space below the floor seats. An outlet at the tip of the air conditioning duct is formed within the installation space and opens toward the rear seats.

[0004] Furthermore, as a conventional arrangement structure of an air conditioning duct, for example, the structure described in Patent Document 2 is known. The air conditioning unit has a rear duct extending in the front-rear direction of the floor panel. The rear duct has an air distribution duct extending in the vehicle width direction between the front seat and the rear seat. An air outlet is formed in the middle of the air distribution duct to blow conditioned air to the feet of a passenger in the rear seat. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2009-67227 A [Patent Document 2] JP 2005-289282 A Summary of the Invention [Problem to be solved by the invention]

[0006] In the air conditioning duct arrangement structure described in the above-mentioned Patent Document 1, conditioned air is blown from under the front seats to the rear seats through the installation space. However, because the installation space is a recessed space in the front floor, the conditioned air is blocked by the wall of the floor mat of the installation space, making it difficult to blow the conditioned air to the rear seats.

[0007] In addition, in the air conditioning duct arrangement structure described in the above-mentioned Patent Document 2, the air conditioning unit is arranged inside the instrument panel, and the rear duct is formed to extend to the rear side of the front seat. This structure has the problem that the manufacturing cost increases due to the increase in the number of parts, such as the length of the air conditioning duct. In addition, there is a problem that the air distribution duct is exposed at the feet of the passengers sitting in the rear seat, and a step is formed by the air distribution duct, which reduces the foot space and reduces the comfort of the passengers.

[0008] The present invention has been made in consideration of the above-mentioned circumstances, and relates to a vehicle floor mat structure in which the floor mat under the front seat is formed with an opening for blowing out conditioned air and an inclined portion for guiding the conditioned air toward the rear seat, thereby improving comfort around the feet of occupants sitting in the rear seat. [Means for solving the problem]

[0009] One embodiment of the present invention relates to a vehicle floor mat structure that guides air-conditioned air from under the front seats of a vehicle to the feet of occupants seated in the rear seats, and is characterized in that it comprises an opening formed in the floor mat below the front seats, which serves as an air passage for the air-conditioned air, and an inclined portion formed in the floor mat on the rear seat side of the opening, and the inclined portion has an upwardly sloping surface facing the rear seat side. Effect of the Invention

[0010] In one embodiment of the present invention, a floor mat structure for a vehicle includes an opening in the floor mat under the front seat that serves as an air passage for conditioned air, and an inclined portion formed on the rear seat side from the opening. With this structure, the conditioned air blown out below the front seat flows efficiently to the rear seat side via the inclined portion. The conditioned air is then guided to the feet of the passengers seated in the rear seat, providing a comfortable riding environment and air-conditioning environment for the passengers. [Brief description of the drawings]

[0011] [Figure 1] 1 is a cross-sectional view illustrating a vehicle having a vehicle floor mat structure according to one embodiment of the present invention. [Diagram 2] 1 is a plan view illustrating a vehicle floor mat structure according to an embodiment of the present invention. [Diagram 3] 1 is a cross-sectional view illustrating a vehicle floor mat structure according to an embodiment of the present invention. [Figure 4A] 1 is a schematic diagram illustrating the air conditioning performance of a vehicle floor mat structure according to one embodiment of the present invention. [Figure 4B] 1 is a schematic diagram illustrating the air conditioning performance of a vehicle floor mat structure according to one embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] A vehicle floor mat structure 10 according to an embodiment of the present invention will be described in detail below with reference to the drawings. In the description of this embodiment, the same reference numbers are used for the same components as a rule, and repeated description will be omitted. In addition, the front-rear direction of the paper indicates the overall length direction of the vehicle 11, the left-right direction of the paper indicates the width direction of the vehicle 11, and the up-down direction of the paper indicates the height direction of the vehicle 11.

[0013] Fig. 1 is a cross-sectional view illustrating a vehicle 11 in which a vehicle floor mat structure 10 of this embodiment is disposed. Fig. 2 is a plan view illustrating the vehicle floor mat structure 10 of this embodiment. Fig. 3 is a cross-sectional view illustrating the vehicle floor mat structure 10 of this embodiment, showing a cross section along line AA shown in Fig. 2.

[0014] 1, for example, a BEV (Battery Electric Vehicle), an HEV (Hybrid Electric Vehicle), a PHEV (Plug-in Hybrid Electric Vehicle), etc. are adopted as the vehicle 11. Note that the vehicle 11 is not limited to the above-mentioned electric vehicles, but also includes a vehicle 11 that runs on an internal combustion engine fueled by gasoline or the like.

[0015] The vehicle 11 includes, from the front side, a front seat 12 constituting a driver's seat and a passenger seat, and a rear seat 13 arranged behind the front seat 12. An air conditioner 15 is installed inside an instrument panel 14 of the vehicle 11. The air conditioner 15 includes an air conditioning unit 16 and an air conditioning duct 17 connected to the air conditioning unit 16.

[0016] The air conditioning unit 16 includes a blower, a cooler, a heater, etc. (not shown), takes in air inside the vehicle compartment 18 and outside air, and adjusts the temperature of the conditioned air to be blown into the vehicle compartment 18. The conditioned air is then blown into the vehicle compartment 18 through the air conditioning duct 17, thereby adjusting the temperature inside the vehicle compartment 18 to a comfortable temperature for the occupants.

[0017] As shown in the figure, for the feet R, L of an occupant P seated in the rear seat 13 of the vehicle 11, the air conditioning duct 17 extends below the floor panel 19 of the vehicle 11 and is routed to below the front seat 12. Then, conditioned air is blown out toward the rear seat 13 below the front seat 12 via the air conditioning duct 17 and openings 22A, 22B (see FIG. 2), so that the feet R, L of the occupant P seated in the rear seat 13 are adjusted to a comfortable temperature.

[0018] FIG. 2 shows the shape of the floor mat 21 under the front seat 12, and for convenience of explanation, the front seat 12 is omitted from the illustration.

[0019] As shown in the figure, the floor mat 21 is formed so as to cover the upper surface of the floor panel 19 (see FIG. 1). A protruding portion 22 is formed on the floor mat 21 in front of the front seat 12 to ensure a space for the feet of a person (not shown) seated on the front seat 12. A sloping portion 23 extending toward the rear seat 13 is formed behind the protruding portion 22. A pair of seat rail protruding portions 24, 25 are formed on both sides of the protruding portion 22 and the sloping portion 23 in the vehicle width direction. With this structure, a recessed portion 26 surrounded by the protruding portion 22, the sloping portion 23, and the seat rail protruding portions 24, 25 is formed on the floor mat 21. A pair of seat rails 28, 29 that slidably support the front seat 12 are disposed above the seat rail protruding portions 24, 25.

[0020] Two openings 22A, 22B are formed on the rear seat 13 side of the protruding portion 22, opening toward the inclined portion 23. The openings 22A, 22B are also formed in the floor panel 19 on the inner side of the floor mat 21. The air conditioning duct 17 is formed extending to the vicinity of the openings 22A, 22B, and an air outlet 17A is formed at the tip of the air conditioning duct 17.

[0021] With this structure, the conditioned air, whose temperature is adjusted by the air conditioning unit 16 and blown out from the air outlet 17A, is blown out through the openings 22A and 22B towards the rear seat 13. Then, as will be described in detail later, after being blown into the space of the recessed portion 26, the conditioned air flows towards the rear seat 13 along the inclined surface 23A (see FIG. 3) of the inclined portion 23 and is guided to the feet R, L of the occupant P seated in the rear seat 13 and the surrounding area.

[0022] 3, below the front seat 12, the floor panel 19 has a wall portion 19A that is substantially vertical in the region where the protruding portion 22 is formed, and also has a wall portion 19B that is substantially vertical in the region where the inclined portion 23 is formed. The floor mat 21 is disposed along the upper surface of the floor panel 19 in a part of the region of the protruding portion 22 and the recessed portion 26 on the protruding portion 22 side.

[0023] Meanwhile, the floor mat 21 is formed to have an upwardly inclined surface 23A toward the rear seat 13 in the forming area of ​​the inclined portion 23. The floor mat 21 is formed in a state spaced apart from the floor panel 19. As described above, the floor mat 21 is formed by press molding, and thus can independently maintain the inclined shape.

[0024] With this structure, as shown by arrow 27, the conditioned air blown out from openings 22A, 22B toward rear seat 13 flows through the space of recess 26 toward rear seat 13, and is then sent toward rear seat 13 along inclined surface 23A of inclined portion 23. As shown in Fig. 2, inclined surface 23A is formed between a pair of seat rail protrusions 24, 25, so that the conditioned air does not expand too much in the vehicle width direction, and is sent toward rear seat 13 in a substantially straight line.

[0025] As a result, the feet R, L of the occupant P seated in the rear seat 13 directly behind the front seat 12 are usually within the width W1 (see FIG. 2) of the formation area of ​​the inclined portion 23 and are located around the pair of seat rail protrusions 24, 25. The conditioned air blown from below the front seat 12 toward the rear seat 13 is guided to the vicinity of the feet R, L of the occupant P, thereby realizing a comfortable riding environment and air-conditioned environment for the occupant P.

[0026] As shown in the figure, the inclined portion 23 of the floor mat 21 is disposed below the front seat 12, and is formed in an area that is not stepped on by the feet of the occupant P. Therefore, it is sufficient for the inclined portion 23 to have enough rigidity to maintain its shape even if the air conditioning wind collides with it, and there is no problem even if the floor mat 21 is separated from the floor panel 19.

[0027] This structure allows the angle θ1 of the inclined surface 23A of the floor mat 21 to be easily adjusted by press molding according to the space of the recessed portion 26 under the front seat 12. For example, when a large space can be secured for the recessed portion 26, the angle θ1 of the inclined surface 23A is designed to be small, so that the air conditioning wind is less likely to collide with the inclined surface 23A and diffuse or to flow back, improving the air conditioning characteristics described below.

[0028] Here, the air conditioning performance of the air conditioning air in the case where the vehicle floor mat structure 10 of this embodiment is present and the case where the vehicle floor mat structure 10 of this embodiment is not present will be described with reference to Figs. 4A and 4B.

[0029] Fig. 4A is a schematic diagram for explaining a test situation when the inclined portion 23 of the vehicle floor mat structure 10 of the present embodiment is provided. Fig. 4B is a schematic diagram for explaining a test situation when the inclined portion 23 of the vehicle floor mat structure 10 of the present embodiment is not provided, as a comparative example to Fig. 4A. In this test, an anemometer 32 was attached to the tip of a shoe 31, and the volume and temperature of air blown out from the air conditioner 15 were set to the same conditions.

[0030] In the structure having the inclined portion 23 shown in Fig. 4A, the inclined portion 23 has a length that is approximately half the linear length from the air outlet 17A of the air conditioning duct 17 to the tip of the shoe 31. On the other hand, in the structure not having the inclined portion 23 shown in Fig. 4B, a wall portion 33 having an approximately vertical shape is formed in the middle of the inclined portion 23 shown in Fig. 4A. The height position of the air outlet 17A of the air conditioning duct 17 and the height position of the anemometer 32 at the tip of the shoe 31 are the same.

[0031] As a result of the above test, in the structure having the inclined portion 23 shown in Fig. 4A, the conditioned air blown out from the air outlet 17A of the air conditioning duct 17 at a speed of 1.5 m / s was measured to have a wind speed of 1.1 m / s by the anemometer 32. This is because the conditioned air flows along the inclined portion 23, and most of the conditioned air reaches the shoes 31 without being diffused by the inclined portion 23.

[0032] 4B , the conditioned air blown out from the air outlet 17A of the air conditioning duct 17 at a speed of 1.5 m / s was measured to have a speed of 0.7 m / s by the anemometer 32. This is because part of the conditioned air flows back toward the air outlet 17A at the wall 33, the momentum of the two air streams cancel each other out, and turbulence occurs around the wall 33, causing part of the conditioned air to diffuse and not reach the shoes 31.

[0033] As a result, the structure having the inclined portion 23 shown in FIG. 4A showed an improvement in air conditioning performance of about 57% compared to the structure not having the inclined portion 23 shown in FIG. 4B.

[0034] In this embodiment, the air conditioning duct 17 is not led into the vehicle interior 18 from the openings 22A and 22B of the floor mat 21, and the air outlet 17A of the air conditioning duct 17 is disposed inside the floor mat 21. However, the present invention is not limited to this. For example, the air conditioning duct 17 may be led out of the vehicle interior 18 through the openings 22A and 22B, and the air outlet 17A of the air conditioning duct 17 may be disposed outside the floor mat 21. In this case, the air conditioning air does not flow directly through the openings 22A and 22B, but since the air conditioning duct 17 is disposed inside the openings 22A and 22B, the openings 22A and 22B are interpreted as being part of the air path of the air conditioning air.

[0035] 2, the inclined portion 23 and its inclined surface 23A are formed across the width W1 between the seat rails 28, 29, but the present invention is not limited to this. For example, the conditioned air blown out from the air outlet 17A of the air conditioning duct 17 usually flows linearly toward the rear seat 13 of the vehicle 11, so that the above-mentioned effect can be obtained by arranging the inclined portion 23 and its inclined surface 23A in at least an area facing the opening 22A in the vehicle width direction of the vehicle 11. In addition, various modifications are possible without departing from the gist of the present invention. [Explanation of symbols]

[0036] 10. Vehicle floor mat structure 11 Vehicles 12 Front seats 13 Rear seat 14 Instrument Panel 15 Air conditioner 16 Air Conditioning Unit 17 Air conditioning duct 17A Air outlet 18 Cabin 19 Floor Panel 19A,19B Wall section 21 Floor Mats 22 Protrusion 22A,22B opening 23 Slope 23A Slope 24,25 Seat rail protrusion 26 Recess 27 Arrow 28,29 Seat rail 31 Shoes 32 Anemometer 33 Wall section P Crew R,L feet

Claims

1. A floor mat structure for a vehicle that guides conditioned air from under a front seat of the vehicle to the feet of an occupant seated in a rear seat, An opening formed in a floor mat below the front seat and serving as an air passage for the air conditioning air; a sloping portion formed on the floor mat, the sloping portion being located on the rear seat side of the opening, A floor mat structure for a vehicle, wherein the inclined portion has an upwardly inclined surface facing the rear seat side.

2. 2. The vehicle floor mat structure according to claim 1, wherein the inclined portion is formed between a pair of seat rails supporting the front seat.

3. 3. The vehicle floor mat structure according to claim 2, wherein at least a portion of the inclined portion is located below the front seat, and the floor mat forming the inclined portion is formed at a distance from a floor panel of the vehicle.

4. 4. The vehicle floor mat structure according to claim 2, wherein the opening is open toward the inclined portion, and an air conditioning duct outlet is disposed below the floor mat near the opening.

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