Vehicle interior structure

Abstract

To protect the breast and the abdomen of an occupant seated on a seat, at the time of collision of a vehicle.SOLUTION: A vehicle interior structure 100 is provided with: a front floor panel 110, a back floor panel 120, a back cabin panel 130, a front side panel 140, a roof side panel 150, a side cabin panel 160 and a tire house inner panel 170 which constitute a vehicle interior, a seat 180 on which an occupant is seated, and a lower trim 210 mounted on the back cabin panel 130 positioned laterally to the seat 180. The lower trim 210 has a shoulder protector pad 230 that protrudes from a position facing a side of the shoulder of an occupant having a medium-sized build seated on the seat 180 toward the vehicle interior.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a vehicle interior structure. [Background technology]

[0002] When another vehicle collides with a vehicle from the side, the panel located on the side of the seat where the occupant sits may protrude into the passenger compartment, potentially affecting the occupant sitting in the seat. For this reason, as described in JP 2021-123223 A (Patent Document 1), it is conceivable to form a bulge in the panel located on the side of the seat that follows the seat, thereby improving the strength of the side of the vehicle. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2021-123223 Summary of the Invention [Problem to be solved by the invention]

[0004] However, with the technology described in Patent Document 1, when another vehicle collides with the vehicle in the side, the entire bulge protrudes into the passenger compartment, making it difficult to mitigate the impact on the occupant seated in the seat. Furthermore, in order to mitigate the impact on the occupant seated in the seat during a side collision of the vehicle, it is necessary to protect the chest and abdomen, which are located below the occupant's shoulders.

[0005] SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a vehicle interior structure that can protect the chest and abdomen of an occupant seated in a seat during a vehicle collision. [Means for solving the problem]

[0006] The vehicle interior structure includes an interior member attached to a vehicle body panel located on the side of a seat in which an occupant sits, and the interior member has a shoulder rest portion that protrudes toward the vehicle interior from a position facing the side of the shoulder of an occupant with a standard build who sits in the seat. [Effects of the Invention]

[0007] According to the present invention, the chest and abdomen of an occupant seated in a seat can be protected in the event of a vehicle collision. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view showing an example of a vehicle interior structure. [Figure 2] FIG. 2 is a side view showing an example of a vehicle interior structure. [Figure 3] FIG. 2 is a front view showing an example of a vehicle interior structure. [Figure 4] FIG. 2 is an enlarged perspective view of the cross section AA in FIG. [Figure 5] FIG. 2 is an exploded view showing an example of a lower trim and a shoulder pad. [Figure 6] 10 is a cross-sectional view showing an example of a structure for attaching a shoulder pad to a lower trim. FIG. [Figure 7] 10 is a cross-sectional view showing another example of the mounting structure of the shoulder pad to the lower trim. FIG. [Figure 8] FIG. 10 is a perspective view showing an example of a cushion portion attached to a shoulder pad. [Figure 9] FIG. 10 is a perspective view showing a modified example of the cabin structure. [Figure 10] FIG. 10 is a perspective view showing another modified example of the vehicle interior structure. [Figure 11] FIG. 1 is a perspective view showing an example of a mounting structure for a lower trim and a shoulder pad to a center pillar. [Figure 12] FIG. 12 is a perspective view showing a detailed example of the mounting structure of the lower trim in FIG. DETAILED DESCRIPTION OF THE INVENTION

[0009] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. 1 to 3 show an example of a vehicle interior structure 100 to which this embodiment can be applied. Note that the vehicle interior structure 100 described below is merely an example showing one example of this embodiment, and should not be construed as being limited to this configuration.

[0010] The vehicle interior structure 100 is configured by appropriately joining, by spot welding or the like, a front floor panel 110 and a back floor panel 120 that constitute the floor walls, a back cabin panel 130 that constitutes the rear wall, a pair of left and right front side panels 140 that constitute both side walls, a roof side panel (including so-called A-pillar panels) 150, door panels (not shown), a side cabin panel 160, and a tire house inner panel 170, a front panel (not shown) that constitutes the front wall, and a roof panel (not shown) that constitutes the ceiling wall. Here, the front floor panel 110, the back floor panel 120, the back cabin panel 130, the front side panel 140, the roof side panel 150, the side cabin panel 160, and the tire house inner panel 170 are given as examples of various panels. The back floor panel 120 is used to provide a back space in the rear of the vehicle interior for storing luggage and the like. These various panels refer to vehicle body panels made of steel plates or the like that form vehicle body frame members.

[0011] A windshield opening (not shown) into which a windshield is attached is formed at a predetermined location on the front panel that constitutes the front wall of the passenger compartment. A door opening DO into which a door (not shown) is attached so as to be able to open and close is formed at a predetermined location on the joined body of the front side panels 140, roof side panels 150, and side cabin panels 160 that constitute both side walls of the passenger compartment. A side glass opening SO into which a side glass is attached is formed at a predetermined location on the side cabin panels 160 that constitute both side walls of the passenger compartment. A rear glass opening RO into which a rear glass is attached is formed at a predetermined location on the back cabin panel 130.

[0012] A pair of left and right seats 180 (seats) for occupants to sit on are attached to predetermined locations on a front floor panel 110 that constitutes the floor wall of the vehicle compartment, side by side in the left-right direction of the vehicle (only the right seat 180 is shown in FIG. 1). The seat 180 has a seat cushion 180A fixed to predetermined locations on the front floor panel 110, and a headrest-integrated seat back 180B that is recliningly fixed to the rear end of the seat cushion 180A. A center console 190 is also attached between the pair of left and right seats 180.

[0013] As shown in Fig. 4, the side cabin panel 160 located behind the door opening DO cooperates with a pillar outer panel 200 located laterally outward to form a center pillar CP. A portion of the side cabin panel 160 adjacent to its front end is formed in a hat shape that protrudes into the interior of the vehicle over the entire length of the vehicle in the vertical direction. A portion of the pillar outer panel 200 adjacent to its front end is formed in a hat shape that protrudes outward from the vehicle compartment over the entire length of the vehicle in the vertical direction. The side cabin panel 160 and the pillar outer panel 200 are then overlapped and the overlapping portion is joined by spot welding or the like to form a center pillar CP having a closed cross section.

[0014] A lower trim 210, an example of an interior component, is attached to the inner surface of the center pillar CP facing the interior of the vehicle. The lower trim 210 extends upward from the upper surface of the front floor panel 110, where the seat cushion 180A of the seat 180 is attached, past the shoulders of a standard-sized occupant. Interior components are a collective term for the interior lining (interior parts) and decorative items used therein. They are used, for example, to improve the appearance and texture of the vehicle interior, improve comfort by blocking noise and temperature outside the vehicle interior, and protect occupants in the event of a collision or collision. The interior components are made of resin or cushioning material and are configured to have lower rigidity than the body frame components such as the various panels described above. Here, the "standard body type" refers to a body type with dimensions predetermined in consideration of the race and other factors of the people in each country in which a vehicle equipped with the vehicle interior structure 100 of this embodiment is operated. The base end of the lower trim 210, i.e., the portion where it is attached to the center pillar CP, is shaped to resemble the hat-shaped side cabin panel 160. The lower trim 210 has its front end engaged with a resin lining 220 provided at the joint (edge) of the side cabin panel 160 and the pillar outer panel 200, and its rear end fixed to the side cabin panel 160 with bolts or the like (not shown).

[0015] A shoulder pad 230 protrudes from the surface of the side cabin panel 160 toward the passenger compartment at a predetermined location on the upper portion of the lower trim 210 facing the side of the shoulder of an occupant with a standard build. The shoulder pad 230 is attached to the occupant's shoulder before the occupant's chest or abdomen during a side collision. In Japan, the major dimensions of a dummy used in a crash test that takes into account the standard build of Japanese people may be, for example, a range of 565±7 mm from the seat cushion to the shoulder joint. The predetermined location that covers the shoulder of a standard occupant may be located above or to the side of the rear of the seat back 180B within the vertical range between the upper and lower ends of a steering wheel 290 (described later), or may be located adjacent to and below a shoulder seatbelt anchor 270 (described later). Details of the shoulder pad 230 will be described later.

[0016] Assist grips 240 that help occupants get in and out of the vehicle are attached to the upper parts of the roof side panels 150 that form both side walls of the vehicle interior. The assist grips 240 assist the occupants in getting in and out of the vehicle by gripping them as needed when getting in and out. In addition, head pads 250 are attached from the upper parts of the roof side panels 150 that form both side walls of the vehicle interior to the upper parts of the side cabin panels 160. The head pads 250 protect the occupants' heads by catching them and preventing them from directly hitting the roof side panels 150 or the side cabin panels 160 in the event of a side collision of the vehicle. Therefore, the head pads 250 are attached at predetermined locations facing the sides of the head of the occupant seated in the seat 180.

[0017] Furthermore, a seatbelt anchor (shoulder seatbelt anchor) 270 for folding back a strap (belt) 260 reeled out from a retractor (not shown) disposed inside the lower trim 210 is attached to a surface of the center pillar CP facing the interior of the vehicle, at a location between the shoulder pad 230 and the head pad 250. The retractor, strap 260, seatbelt anchor 270, and seatbelt tongue (tongue plate) 280 constitute a seatbelt assembly. As shown in FIG. 2, the seatbelt tongue 280 is detachably fixed to a seatbelt buckle 282 attached to the bottom of the seat 180.

[0018] 2 and 3, a steering wheel 290 that is operated when steering the vehicle is attached in front of the seat 180 on which the driver sits. As shown in Fig. 2, the steering wheel 290 is fixed to a steering member 300 that extends in the vehicle width direction by a steering column 320 that rotatably supports a steering shaft 310. The lower end of the steering shaft 310 is connected to a steering gear box (not shown).

[0019] Shoulder pad 230 is a cushioning member having, for example, a resin outer shell, and is an integrated cushioning member comprising: a protruding portion 232 whose upper portion protrudes into the vehicle cabin; and a cushion receiving portion 234 that extends downward from the lower end of protruding portion 232 and receives a cushioning material (described later). As shown in FIG. 5, a plurality of ribs 232A are formed inside protruding portion 232 of shoulder pad 230, extending in the up-down and left-right directions when viewed from the side of the seat. Here, "viewed from the side of the seat" refers to the view from the seat 180 side, i.e., from inside the vehicle cabin (the same applies hereinafter). Furthermore, at intersections where the plurality of ribs 232A intersect, near the four corners of protruding portion 232, mounting bosses 232B are formed, into which the tips of bolts that secure the upper portion of shoulder pad 230 to lower trim 210 are threadedly engaged. Furthermore, cylindrical protrusions 234A are formed at two positions spaced apart in the left-right direction below the cushion receiving portion 234 of the shoulder pad 230, through which the lower portion of the shoulder pad 230 is inserted to fix it to the lower trim 210. Here, the protrusions 232 of the shoulder pad 230 are given as an example of a shoulder rest portion.

[0020] The lower trim 210, to which the shoulder pad 230 is attached, is formed with a support portion 212 that receives and supports the base end of the shoulder pad 230. The support portion 212 has an annular flat portion 212A that receives the base end of the shoulder pad 230, and three protrusions 212B formed at positions corresponding to the mounting bosses 232B and protrusions 234A formed on the shoulder pad 230. Each protrusion 212B is formed with an insertion hole TH1 through which the shank of a bolt that screws into the corresponding mounting boss 232B can be inserted, and an insertion hole TH2 through which the protrusion 234A can be inserted. Therefore, the shoulder pad 230 is fixed to the lower trim 210 by inserting the tip of the protrusion 234A of the shoulder pad 230 into the insertion hole TH2 from the front side of the lower trim 210, i.e., the passenger compartment side, and then melting the tip of the protrusion 234A from the back side of the lower trim 210, i.e., the side cabin panel 160 side. The tip of a bolt is inserted into the insertion hole TH1 from the back surface side of the lower trim 210 and the tip is screwed into the mounting boss 232B and the protrusion 234A of the shoulder pad 230, thereby fixing the shoulder pad 230 to the lower trim 210. In this way, even if the bolt that fixes the shoulder pad 230 to the lower trim 210 loosens when fixing the lower trim 210 to the side cabin panel 160 with the bolts or due to subsequent vibrations during driving, it is possible to prevent the shoulder pad 230 from shifting in position. Note that the lower part of the shoulder pad 230 may be fixed to the insertion hole TH2 of the lower trim 210 with a clip, or the tip of a protrusion provided on the upper part of the shoulder pad 230 may be inserted into the insertion hole TH1 of the lower trim 210 and melted, and the lower part of the shoulder pad 230 may be fixed to the insertion hole TH2 of the lower trim 210 with a bolt.

[0021] In the shoulder pad 230, as shown in Fig. 6, it is desirable that an end of at least one rib 232A formed inside the protruding portion 232 is positioned between two convex portions 212B formed on the lower trim 210. Alternatively, as shown in Fig. 7, it is desirable that the ends of at least two ribs 232A formed inside the protruding portion 232 of the shoulder pad 230 be positioned so as to sandwich a convex portion 212C that connects the ends of the two convex portions 212B formed on the lower trim 210. In short, it is desirable that the lower trim 210 and the shoulder pad 230 have concave and convex portions on their joining surfaces (bonding surfaces) that can be combined with each other. In this way, even if the shoulder pad 230 attempts to displace relative to the lower trim 210 for some reason, the end of the rib 232A can come into contact with the side surface of the convex portion 212B or 212C of the lower trim 210, thereby suppressing the displacement.

[0022] Furthermore, as shown in FIG. 5 , the lower trim 210 to which the shoulder pad 230 is attached has a rectangular opening 214 formed at a position overlapping the cushion receiving portion 234 in a side view of the seat to reduce the rigidity of that portion and improve the cushioning effect. Meanwhile, the cushion receiving portion 234 of the shoulder pad 230 has a plurality of slits 234B formed therein to deform and absorb the impact when, for example, an occupant seated in the seat 180 moves forward and hits the cushion receiving portion 234 of the shoulder pad 230 during a side collision of the vehicle. Here, in the example shown in FIG. 5 , four slits 234B are formed extending in the left-right direction of the cushion receiving portion 234 of the shoulder pad 230 in a side view of the seat, but the extension direction and number of the slits 234B can be freely set. Here, considering the possibility that the occupant will move forward due to inertia during a side collision of the vehicle, it is desirable to form the slits 234B on the front side of the seat 180, i.e., in front of the occupant seated therein. The opening 214 formed in the lower trim 210 and the slit 234B formed in the cushion receiving portion 234 of the shoulder pad 230 are examples of weak portions. The cushion receiving portion 234 of the shoulder pad 230 may be provided in the lower trim 210. The term "rigidity" refers to the rigidity in the direction in which the shoulder pad 230 protrudes.

[0023] 5, in the lower trim 210, two fixing portions 216 for attaching the lower trim 210 to the side cabin panel 160 are formed side by side in the vertical direction in a region adjacent to the support portion 212 to which the shoulder pad 230 is attached, specifically, in a region located rearward of the support portion 212 in a side view of the seat. The two fixing portions 216 have, for example, flat surfaces recessed into the surface of the lower trim 210, and insertion holes TH are formed therein through which the shanks of bolts can be inserted. In addition, the region on the rear end side of the lower trim 210 excluding the fixing portions 216 forms a raised portion 217 whose outer shell protrudes toward the passenger compartment. The raised portion 217 of the lower trim 210 is provided on a side wall that connects the base end of the shoulder pad 230 and the fixing portions 216.

[0024] As shown in FIG. 8 , a cushion portion 236 having an L-shape in a side view of the seat and lower rigidity than the protruding portion 232 is attached to the cushion receiving portion 234 of the shoulder pad 230. The cushion portion 236 is a shock-absorbing member having an outer shell made of a cushioning material such as sponge or foam rubber. The cushion portion 236 includes a first cushion portion 236A having an L-shape in a side view of the seat and connected to the front and lower ends of the protruding portion 232, and a second cushion portion 236B having a rectangular shape in a side view of the seat and connected to the lower end of the first cushion portion 236A. The first cushion portion 236A and the second cushion portion 236B of the cushion portion 236 may have ribs formed therein to achieve the required rigidity. The first cushion portion 236A and the second cushion portion 236B of the cushion portion 236 may, of course, be solid. Furthermore, the cushion portion 236 may be fixed to the cushion receiving portion 234 with an adhesive or adhesive tape.

[0025] The first cushion portion 236A and the second cushion portion 236B are configured to have lower rigidity than the protruding portion 232 as a whole. Specifically, the first cushion portion 236A is configured to have lower rigidity than the protruding portion 232, and the second cushion portion 236B is configured to have even lower rigidity than the first cushion portion 236A. Therefore, the shoulder pad 230 is configured so that its rigidity decreases stepwise from its top to its bottom. Note that the protruding portion 232 and the cushion portion 236 may be configured so that the rigidity of the shoulder pad 230 gradually decreases from its top to its bottom. Furthermore, it is desirable that the assembly of the protruding portion 232, the cushion receiving portion 234, and the cushion portion 236 is configured so that the surface facing the interior of the vehicle cabin is uniform. Here, the cushion portion 236 is an example of a low-rigidity portion.

[0026] The surface of the assembly of the protruding portion 232, cushion receiving portion 234, and cushion portion 236 is preferably covered with a cover 238, which is a sheet-like surface material made of, for example, natural fiber, synthetic fiber, or leather, as shown in FIGS. 1 and 2 . The cover 238 may be made of the same color and material as the lower trim 210. In this way, the cover 238 covers the joint between the protruding portion 232 and the cushion portion 236, thereby improving the appearance of the shoulder pad 230 as viewed from inside the vehicle cabin while functioning as a cushioning material, thereby improving product quality, for example. The cover 238 has an edge that can abut against the back side of the shoulder pad 230. By sandwiching this edge between the base end of the shoulder pad 230 and the surface of the lower trim 210, unintentional detachment of the cover 238 can be prevented. The edge of the cover 238 is preferably provided around the entire circumference of the base end of the shoulder pad 230. Furthermore, if the end of the cover 238 and the back side of the shoulder pad 230 are adhered together, the shoulder pad 230 can be easily attached to the lower trim 210 .

[0027] According to this vehicle interior structure 100, a lower trim 210 extending in the vertical direction is attached to a center pillar CP composed of a side cabin panel 160 and a pillar outer panel 200 located to the side of a seat 180. The lower trim 210 has a shoulder pad 230 that protrudes toward the vehicle cabin from a position facing the side of the shoulder of an occupant of a standard build seated in the seat 180. Therefore, even if the center pillar CP protrudes into the vehicle cabin in a side collision with another vehicle, the shoulders of the occupant seated in the seat 180 will first come into contact with the shoulder pad 230, pushing the occupant toward the vehicle cabin. As a result, the distance between the occupant and the interior wall of the vehicle cabin, including the center pillar CP, is maintained, which reduces the impact on the occupant's chest and abdomen, which are located below the occupant's shoulders, thereby improving occupant safety. Furthermore, because the shoulder pad 230 is attached to the lower trim 210, even if an occupant collides with the lower trim 210 during a side collision of the vehicle, the collision energy can be absorbed by the deformation of the lower trim 210.

[0028] 9 shows a modified example of the vehicle interior structure 100. Note that the same components as those in the vehicle interior structure 100 according to the previous embodiment are denoted by the same reference numerals, and detailed descriptions thereof will be omitted. Please refer to the description of the previous embodiment if necessary.

[0029] The vehicle interior structure 100 is configured by appropriately joining together by spot welding or the like a front floor panel 110 constituting the floor wall, a back cabin panel 130 constituting the rear wall, a pair of left and right front side panels 140 constituting both side walls, a roof side panel 150, a pillar outer panel 200, a pillar inner panel 330, and a tire house inner panel 170, a front panel (not shown) constituting the front wall, and a roof panel (not shown) constituting the top wall. Here, the front floor panel 110, the back cabin panel 130, the front side panel 140, the roof side panel 150, the pillar inner panel 330, and the tire house inner panel 170 are given as examples of various panels.

[0030] In the modified example of the vehicle interior structure 100, since there is no back floor panel 120, there is no back space behind the seat 180, unlike the previous embodiment. The back cabin panel 130 is provided with a reinforcement 130A that extends in the vehicle width direction and reinforces the back cabin panel 130. The reinforcement 130A has a hat-shaped cross section and is joined to the back cabin panel 130 by spot welding or the like. The reinforcement 130A cooperates with the back cabin panel 130 to form a closed cross section, improving the rigidity of the back cabin panel 130, particularly the rigidity in the vehicle width direction. The longitudinal end of the reinforcement 130A is disposed between the pillar inner panel 330 and the back cabin panel 130 in the front-rear direction. It is desirable to join the end of the reinforcement 130A, the pillar inner panel 330, and the back cabin panel 130 together.

[0031] As in the previous embodiment, the seat 180 may have a seat cushion 180A fixed to a predetermined position on the front floor panel 110 and a headrest-integrated seat back 180B recliningly fixed to the rear end of the seat cushion 180A. Alternatively, as shown in FIG. 10, the seat 180 may have a seat cushion 180A fixed to a predetermined position on the front floor panel 110 and a headrest-separate seat back 180B attached to a reinforcement 130A that reinforces the back cabin panel 130. The headrest-integrated seat back 180B may be fixed to the reinforcement 130A of the back cabin panel 130. In FIG. 10, the seat back 180B of the seat 180 may be separate from the seat cushion 180A and fixed to the back cabin panel 130 and / or the reinforcement 130A.

[0032] 11 , the rear end of the center pillar CP forms a three-piece joint JT, where the ends of the back cabin panel 130, the pillar inner panel 330, and the pillar outer panel 200 are overlapped and joined by spot welding or the like. In this case, because the three-piece joint JT is highly rigid and the back cabin panel 130 is located nearby, the lower trim 210 may be integrated with a connecting portion 218 for fixing its rear end to the back cabin panel 130 using a fastener such as a bolt. In this way, the rear end (panel connecting portion) 210A of the lower trim 210 is fixed to the back cabin panel 130, making it less likely for the lower trim 210 to displace rearward in the event of a side collision of the vehicle, and as a result, it is possible to suppress displacement of the shoulder pad 230 attached to the lower trim 210.

[0033] A raised portion 130B that raises toward the passenger compartment (front side) is formed at an end portion in the vehicle width direction of the back cabin panel 130. An end portion of the reinforcement 130A is joined to the raised portion 130B, thereby improving the rigidity of the closed cross section formed by the back cabin panel 130 and the reinforcement 130A. Also, as shown in FIG. 12, the support portion 212 of the lower trim 210 is formed with a stepped portion 212D in which the inner edge side of the flat portion 212A protrudes toward the passenger compartment in accordance with the inner circumferential surface of the base end portion of the shoulder pad 230. Therefore, the base end portion of the shoulder pad 230 fits into the stepped portion 212D, thereby enabling the shoulder pad 230 to be positioned with high precision. Furthermore, since the connecting portion 218 of the lower trim 210 extends below the protruding portion 232 of the shoulder pad 230, the rear surface of the cushion portion 236 is supported by the connecting portion 218, and rearward displacement of the cushion portion 236 can be suppressed via the reinforcement 130A.

[0034] Because the panel connecting portion 210A of the lower trim 210 is connected to the reinforcement 130A, which has the highest rigidity among the members of the back cabin panel 130, the fixing rigidity of the lower trim 210 and, therefore, the fixing rigidity of the shoulder pad 230 can be increased. Also, because the panel connecting portion 210A of the lower trim 210 extends in the up-down direction along the rear surface that intersects with the protruding direction of the shoulder pad 230, rearward displacement of the shoulder pad 230 can be suppressed. Furthermore, because the protruding portion 212B is connected to the back cabin panel 130 by the panel connecting portion 210A of the lower trim 210, the rigidity around the protruding portion 212B is increased, which in turn increases the fixing rigidity of the protruding portion 232 and suppresses its displacement, among other effects. Because the panel connecting portion 210A of the lower trim 210 is provided in a groove portion M that is formed to extend outward in the vehicle width direction, the rigidity around the rear end portion 210A in the outward direction in the vehicle width direction can be increased. The panel connection portion 210A of the lower trim 210 extends more vertically than the reinforcement 130A of the back cabin panel 130, and has a portion N where a part of it abuts against the upper or lower surface of the reinforcement 130A, so that vertical displacement of the panel connection portion 210A of the lower trim 210 can be suppressed.

[0035] The protruding portion 232 of the shoulder pad 230 has a region X that extends in the vertical direction along the rear surface that intersects with the protruding direction of the cushion portion 236. This region X suppresses rearward displacement of the cushion portion 236, making it possible to suppress bottoming out of the cushion portion 236 against various panels (center pillar CP in FIGS. 8 and 11). Furthermore, since this region X is disposed so as to overlap the above-mentioned panel connecting portion 210A, the panel connecting portion 210A, the back cabin panel 130, and the reinforcement 130A can suppress displacement of the region X, which is more effective.

[0036] The protrusion 232 of the shoulder pad 230 is positioned by the lower trim 210 at a predetermined distance Y in the protrusion direction (vehicle width direction) relative to various panels (center pillar CP in FIG. 8), so that even if the center pillar CP tilts or displaces toward the passenger compartment during a side collision of the vehicle, a deformation margin of the lower trim 210 can be secured by the predetermined distance Y. Furthermore, because the panel connecting portion 210A of the lower trim 210 is located closer to the passenger compartment than the protrusion 232 of the shoulder pad 230, displacement of the protrusion 232 is suppressed, making it easier to maintain the position of the occupant's shoulders.

[0037] It should be noted that shoulder pad 230 may be attached directly to various panels without using lower trim 210. Shoulder pad 230 may be molded integrally with lower trim 210. Cushion portion 236 of shoulder pad 230 may not be included. Shoulder pad 230 may be molded integrally with resin, including the portion corresponding to cushion portion 236. When the portion corresponding to cushion portion 236 is molded integrally with resin with protruding portion 232 of shoulder pad 230, a weakened portion such as a notch may be provided in that portion to reduce its rigidity compared to the portion corresponding to protruding portion 232.

[0038] In this embodiment, a side collision in which an occupant is seated in seat 180 facing forward is assumed as a vehicle seat side collision. However, this embodiment can also be applied to a case in which an occupant is seated in seat 180 facing inward in the vehicle width direction, such as when seat 180 is arranged so that seat cushion 180A of seat 180 faces inward in the vehicle width direction. In this case, a vehicle body panel (e.g., back cabin panel 130, a back door panel (not shown), or a partition panel separating the front seat space from the rear seat space) is arranged on the side of seat 180, i.e., in front of or behind seat 180, and shoulder pad 230 that protrudes toward the vehicle cabin from a position facing the side of the occupant's shoulder can be attached to the vehicle body panel located on the side of the shoulder of an occupant with a standard build seated in seat 180. In this way, the chest and abdomen located below the occupant's shoulder can be protected even in a so-called frontal collision or rear collision during a vehicle seat side collision.

[0039] The features and additional features that can be understood from the above-described embodiments will be listed below together with their effects.

[0040] <Feature 1> 1 to 3, the vehicle interior structure 100 includes a front floor panel 110, a back floor panel 120, a back cabin panel 130, a front side panel 140, a roof side panel 150, a side cabin panel 160, a tire house inner panel 170, and the like that constitute the vehicle interior, a seat 180 on which an occupant sits, and a lower trim 210 attached to the side cabin panel 160 located on the side of the seat 180. Alternatively, the vehicle interior of the vehicle interior structure 100 may include the front floor panel 110, the back cabin panel 130, the front side panel 140, the roof side panel 150, a pillar inner panel 330, and the tire house inner panel 170, as shown in FIGS. 9 and 10, instead of the above configuration. The lower trim 210 includes shoulder pads 230 that protrude toward the vehicle interior from positions facing the sides of the shoulders of an occupant with a standard build who sits in the seat 180.

[0041] In this way, even if another vehicle collides with the vehicle from the side of the occupant and the occupant comes relatively close to the side cabin panel 160 or pillar inner panel 330 located on the side of the seat 180 (for example, even if the panel is displaced or deformed so as to come closer to the occupant on the passenger compartment side, or the occupant is shaken by the impact of the collision so as to come closer to the panel), the shoulder pad 230 attached to the lower trim 210 will first come into contact with the occupant's shoulders, so that even if the shoulder pad 230 pushes the occupant into the passenger compartment, for example, the distance between the chest or abdomen located below the occupant's shoulders and the side cabin panel 160 or pillar inner panel 330 will be maintained. This makes it possible to protect the chest and abdomen of the occupant sitting in the seat 180.

[0042] <Feature 2> 5, the lower trim 210 is fixed to the side cabin panel 160 or the pillar inner panel 330 at a location adjacent to the shoulder pad 230. In this way, the lower trim 210 is fixed to the side cabin panel 160 or the pillar inner panel 330 at a location adjacent to the shoulder pad 230, which improves the fixing strength of the shoulder pad 230 and makes it possible to suppress displacement.

[0043] <Feature 3> 4 and 8, the periphery of the shoulder pad 230 of the lower trim 210 is fixed to the joint of the front side panel 140, roof side panel 150, side cabin panel 160, and tire house inner panel 170 located on the side of the seat 180, or to the periphery of a door opening DO formed in the joint of the front side panel 140, roof side panel 150, pillar inner panel 330, and tire house inner panel 170 located on the side of the seat 180. In this way, the periphery of the shoulder pad 230 of the lower trim 210 is fixed to the periphery of the joint between the inner panel and outer panel, which has high rigidity, thereby improving the fixing strength of the shoulder pad 230.

[0044] <Feature 4> 2, the lower trim 210 is fixed to the side cabin panel 160 or the pillar inner panel 330 at a position where it overlaps with the seat back 180B of the seat 180 when viewed from the side of the seat 180. In this way, when viewed from the side of the seat 180, the fixed portion of the lower trim 210 to the side cabin panel 160 or the pillar inner panel 330 is covered by the seat back 180B of the seat 180. Therefore, in the event of a side collision of the vehicle, it is possible to prevent an occupant sitting in the seat 180 from colliding with a fixed portion with high rigidity.

[0045] <Feature 5> 4 and 8, the front end of the lower trim 210 is engaged with the edge of the door opening DO. In this way, the edge of the door opening DO has a multi-layer structure in which at least the ends of the inner panel and the outer panel are joined, so the front end of the lower trim 210 engages with the edge of the door opening DO, which has high rigidity. This makes it easy to attach and detach the lower trim 210 to and from the door opening DO, while also improving the fixing strength of the shoulder pad 230 attached to the lower trim 210.

[0046] <Feature 6> 4 and 8, a lining 220 is disposed between the front end of the lower trim 210 and the end of the door opening DO. In this manner, when the shoulder of an occupant collides with the shoulder pad 230 during a side collision of the vehicle seat, the lining 220 elastically deforms to absorb the collision energy, thereby reducing the impact on the occupant. In addition, the lining 220 increases the contact area of ​​the lower trim 210 with the end of the door opening DO, thereby improving the fixing strength of the lower trim 210 with respect to the end of the door opening DO and thereby stabilizing the position of the shoulder pad 230.

[0047] <Feature 7> 4 and 8, the front end of the lower trim 210 engages with the edge of the door opening DO, and the rear end of the lower trim 210 is fixed to the periphery of the rear window opening RO formed in the back cabin panel 130 located behind the seat 180, as shown in Fig. 11. That is, the rear end of the lower trim 210 is fixed to the periphery of the rear window opening RO, which is different from the door opening DO. In this way, while achieving the effect of Feature 5, the shoulder pad 230 is located on the front side where the occupant seated in the seat 180 can easily move, making it easier for the occupant's shoulders to come into contact with the shoulder pad 230 in the event of a side collision of the vehicle seat.

[0048] <Feature 8> 8 and 11, the lower trim 210 has a cushion portion 236 with lower rigidity than the shoulder pad 230, located below and adjacent to the shoulder pad 230. In this way, even if the occupant's shoulder collides with the lower part of the shoulder pad 230 for some reason during a side collision of the vehicle seat, the presence of the cushion portion 236 with lower rigidity than the shoulder pad 230 allows the collision energy to be absorbed by the cushion portion 236, thereby reducing the impact on the occupant.

[0049] <Feature 9> 5, the lower trim 210 and the cushion receiving portion 234 of the shoulder pad 230 are each provided with an opening 214 and a slit 234B that function as a weakened portion at a position that overlaps with the cushion portion 236 in a side view of the seat. In this way, even if the shoulder of an occupant collides with the cushion portion 236 during a side collision of the vehicle seat, the opening 214 and the slit 234B make it easier for the lower trim 210 to deform, thereby reducing the impact acting on the occupant.

[0050] <Feature 10> 5, slits 234B of cushion receiving portion 234 of shoulder pad 230 are provided on the front side of seat 180. In this way, considering that the relative position of the occupant's shoulders with respect to shoulder pad 230 is likely to shift forward from the rear side where seat back 180B of seat 180 is located, deformation of cushion portion 236 toward the front side can be promoted to protect the occupant's shoulders.

[0051] <Feature 11> 5, the shoulder pad 230 is separably fixed to the passenger compartment-facing surface of the lower trim 210, which is attached to the side cabin panel 160 or pillar inner panel 330 located to the side of the seat 180. In other words, the lower trim 210 is configured such that the shoulder pad 230, which is a separate part from the interior member (trim), is fixed to the passenger compartment-facing surface of the interior member (trim) attached to the side cabin panel 160 or pillar inner panel 330. In this way, the lower trim 210 and the shoulder pad 230 are separable, which improves the ease of assembly and attachment of the lower trim 210 to the side cabin panel 160 or pillar inner panel 330.

[0052] <Feature 12> 5, the lower trim 210 has a support portion 212 that supports a shoulder pad 230, and is fixed to the side cabin panel 160 or the pillar inner panel 330 at a location adjacent to the support portion 212. In this way, the shoulder pad 230 in the lower trim 210 improves the rigidity of the support portion 212, thereby improving the fixing strength of the shoulder pad 230.

[0053] <Feature 13> 4 and 8, the lower trim 210 is disposed with a predetermined gap between it and the side cabin panel 160 or the pillar inner panel 330 located on the side of the seat 180. In this way, when the shoulder of an occupant collides with the shoulder pad 230 during a side collision of the vehicle seat, the lower trim 210 deforms by the predetermined gap to absorb the collision energy and reduce the impact acting on the occupant.

[0054] <Feature 14> 3, a seat belt strap 260 is disposed in the gap between the lower trim 210 and the side cabin panel 160 or the pillar inner panel 330. In this way, the seat belt strap 260 can be used as a shock absorber between the base end of the shoulder pad 230 and the side cabin panel 160 or the pillar inner panel 330, thereby reducing the impact acting on the occupant in the event of a side collision of the vehicle seat.

[0055] <Feature 15> 5, the lower trim 210 includes a fixing portion 216 that fixes the base end of the shoulder pad 230 to the side cabin panel 160 or the pillar inner panel 330, and a raised portion 217 that protrudes toward the passenger compartment from the fixing portion 216. In this way, the raised portion 217 improves the rigidity of the fixing portion 216 relative to the side cabin panel 160 or the pillar inner panel 330, thereby improving the fixing strength of the shoulder pad 230.

[0056] <Feature 16> 5, the raised portion 217 of the lower trim 210 is provided along the connecting portion that connects the base end of the shoulder pad 230 and the fixing portion 216. In this way, the effect of feature 15 can be enhanced.

[0057] <Feature 17> 5, the lower trim 210 has at least one protrusion 212B protruding from the support portion 212 toward the passenger compartment, and the base end of the shoulder pad 230 is fixed to the protrusion 212B. In this way, the formation of the protrusion 212B on the support portion 212 increases the section modulus, thereby improving the rigidity.

[0058] <Feature 18> 5, the lower trim 210 has multiple protrusions 212B, and is formed so that the distance between two adjacent protrusions 212B gradually increases toward the front of the seat 180. This makes it easier for the lower trim 210 to deform toward the front of the seat 180 when the occupant's shoulder collides with it during a side collision of the vehicle.

[0059] <Feature 19> In the shoulder pad 230, as shown in Fig. 6, an end of at least one rib 232A formed inside the protrusion 232 is disposed between two convex portions 212B formed on the lower trim 210. Alternatively, in the shoulder pad 230, as shown in Fig. 7, ends of at least two ribs 232A formed inside the protrusion 232 are disposed so as to sandwich a convex portion 212C that connects the ends of the two convex portions 212B formed on the lower trim 210. In this way, even if the shoulder pad 230 attempts to displace relative to the lower trim 210 for some reason, the end of the rib 232A comes into contact with the side surface of the convex portion 212B or 212C of the lower trim 210, thereby suppressing the displacement.

[0060] <Feature 20> 5, the lower trim 210 has an opening 214 that functions as a weakened portion in the support portion 212. In this way, the mounting position of the shoulder pad 230 can be maintained by the support portion 212 under normal circumstances, and when the shoulder of the occupant collides with the shoulder pad 230 during a side collision of the vehicle seat, the opening 214 increases the deformation of the cushion portion 236, thereby reducing the impact acting on the occupant.

[0061] <Feature 21> 5, in the lower trim 210, the plurality of slits 234B formed in the cushion receiving portion 234 of the shoulder pad 230 are positioned closer to the interior of the vehicle than the opening 214 formed in the support portion 212. This enhances the effect of feature 18.

[0062] In addition to these features 1 to 21, the following features can also be mentioned, which are clearly shown in FIG.

[0063] <Feature A> The upper portion of the shoulder pad 230 has a flat surface portion A that is flat in the vertical direction. This makes it possible to prevent the occupant from coming into contact with the shoulder pad 230 under normal circumstances.

[0064] <Feature B> The lower part of the flat portion A of the shoulder pad 230 has an inclined portion B that is spaced apart from the seat back 180B of the seat 180. In this way, the occupant can avoid contact with the shoulder pad 230 under normal circumstances.

[0065] <Feature C> Seat back 180B of seat 180 has recessed portion C (or stepped portion C) recessed into the vehicle interior to avoid shoulder pad 230. This increases the contact area between the occupant's shoulder and shoulder pad 230 in the event of a side collision of the vehicle seat.

[0066] <Feature D> The seat back 180B of the seat 180 has a protrusion D that protrudes outward in the width direction of the vehicle below the recess C (or step C). In this way, the seat back 180B of the seat 180 can absorb external forces from the side wall in the event of a side collision of the vehicle seat.

[0067] <Feature E> Between the recessed portion C (or stepped portion C) and the protruding portion D of the seat back 180B of the seat 180, an inclined portion E is provided that slopes downward and outward in the width direction of the vehicle along the inclined portion of the shoulder pad 230. In this way, it becomes easier to transmit external force from the protruding portion D to the recessed portion C (or stepped portion C), thereby enhancing the effect of the feature D.

[0068] Those skilled in the art will readily understand that new embodiments can be created by omitting parts of the technical ideas of the various above-described embodiments, combining parts of the ideas appropriately, or replacing parts of the ideas with well-known technology.

[0069] The technical concept of the invention as defined in the claims and its effects are listed below.

[0070] <Technical philosophy 1> The vehicle interior structure includes an interior member attached to a vehicle body panel located to the side of a seat in which an occupant sits. The interior member has a shoulder pad that protrudes toward the vehicle cabin from a position facing the side of the shoulder of an occupant with a standard build seated in the seat. With this configuration, even if another vehicle collides with the vehicle from the side of the seat and the occupant comes relatively close to the body panel located to the side of the seat, the shoulder pad attached to the interior member will first come into contact with the occupant's shoulder. The shoulder pad then pushes the occupant toward the vehicle cabin, maintaining a distance between the occupant's chest and abdomen, which are located below the occupant's shoulder, and the body panel. This allows the occupant's chest and abdomen to be protected.

[0071] <Technical philosophy 2> The interior member is fixed to the vehicle body panel at a portion adjacent to the shoulder pad. In this way, the interior member is fixed to the vehicle body panel at a portion adjacent to the shoulder pad, which improves the fixing strength of the shoulder pad and makes it possible to suppress displacement.

[0072] <Technical philosophy 3> The periphery of the shoulder pad portion of the interior member is fixed to the periphery of an opening formed in a body panel located on the side of the seat. In this way, the periphery of the shoulder pad portion of the interior member is fixed to the periphery of the joint between the inner panel and the outer panel, which has high rigidity, thereby improving the fixing strength of the shoulder pad portion.

[0073] <Technical philosophy 4> The interior member is fixed to the vehicle body panel at a position that overlaps the seat back of the seat when viewed from the side of the seat. In this way, the fixed portion of the interior member to the vehicle body panel is covered by the seat back when viewed from the side of the seat. This makes it possible to prevent an occupant sitting in the seat from colliding with the highly rigid fixed portion in the event of a side collision of the vehicle seat.

[0074] <Technical philosophy 5> The front end of the interior member is engaged with the edge of the opening. In this way, the edge of the opening has a multi-layer structure in which at least the ends of the inner panel and the outer panel are joined, so the front end of the interior member engages with the edge of the opening, which has high rigidity. This makes it easy to attach and detach the interior member to and from the opening, while improving the fixing strength of the shoulder pad attached to the interior member.

[0075] <Technical philosophy 6> A lining is disposed between the front end of the interior member and the edge of the opening. In this way, when the occupant's shoulder collides with the shoulder rest during a side collision of the vehicle seat, the lining's elastic deformation absorbs the collision energy, reducing the impact on the occupant. In addition, the lining increases the contact area of ​​the interior member with the edge of the opening, improving the fixing strength of the interior member to the edge of the opening, thereby stabilizing the position of the shoulder rest.

[0076] <Technical philosophy 7> The front end of the interior member is engaged with the edge of the opening, and the rear end of the interior member is fixed to the periphery of another opening different from the opening formed in the body panel located behind the seat. In this way, while achieving the effect of Technical Idea 5, the shoulder rest is located on the front side where the occupant sitting in the seat can easily move, making it easier for the occupant's shoulders to come into contact with the shoulder rest in the event of a side collision of the vehicle seat.

[0077] <Technical philosophy 8> The interior member has a low-rigidity portion that is lower in rigidity than the shoulder pad portion, located below and adjacent to the shoulder pad portion. With this configuration, even if the occupant's shoulder collides with the area below the shoulder pad portion for some reason during a side collision of the vehicle seat, the low-rigidity portion that is lower in rigidity than the shoulder pad portion is present there, and the collision energy is absorbed by the low-rigidity portion, thereby reducing the impact on the occupant.

[0078] <Technical philosophy 9> The interior member has a weakened portion at a position overlapping the low-rigidity portion in a side view of the seat. This allows the interior member to easily deform due to the weakened portion, even if the shoulder of an occupant collides with the low-rigidity portion during a side collision of the vehicle seat, thereby reducing the impact acting on the occupant.

[0079] <Technical Thought 10> The weakened portion is provided on the front side of the seat. In this way, the relative position of the occupant's shoulders with respect to the shoulder rest portion is likely to shift forward from the rear side where the seat back is located, and the forward deformation of the low rigidity portion can be promoted to protect the occupant's shoulders.

[0080] <Technical Thought 11> The interior member is configured by fastening a shoulder pad, which is a separate part from the trim, to the passenger compartment-facing surface of the trim attached to a body panel located to the side of the seat. This makes the trim and the shoulder pad separable, improving the ease of assembly and attachment of the interior member to the body panel.

[0081] <Technical Thought 12> The trim has a support portion that supports the shoulder portion and is fixed to the vehicle body panel at a portion adjacent to the support portion. In this way, the shoulder portion of the trim improves the rigidity of the support portion, thereby improving the fixing strength of the shoulder portion.

[0082] <Technical Thought 13> The trim is disposed with a predetermined gap between it and the body panel located on the side of the seat. In this way, when the shoulder of an occupant collides with the shoulder rest in the event of a side collision of the vehicle, the trim deforms by the predetermined gap to absorb the collision energy and reduce the impact on the occupant.

[0083] <Technical Thought 14> The seat belt strap is placed in the gap, which can be used as a cushioning material for the seat belt strap between the base end of the shoulder pad and the vehicle body panel, thereby reducing the impact on the occupant in the event of a side collision of the vehicle seat.

[0084] The scope of the claims of the original application at the time of filing is as follows: [Claim 1] An interior member attached to a vehicle body panel located on the side of a seat on which an occupant sits, The interior member has a shoulder rest portion that protrudes toward the vehicle interior from a position facing the side of the shoulder of an occupant with a standard build who will be seated in the seat. Cabin structure. [Claim 2] The interior member is fixed to the vehicle body panel at a portion adjacent to the shoulder portion. The vehicle interior structure according to claim 1. [Claim 3] The periphery of the shoulder pad portion of the interior member is fixed to the periphery of an opening formed in a vehicle body panel located on the side of the seat. The vehicle interior structure according to claim 2. [Claim 4] The interior member is fixed to the vehicle body panel at a position overlapping the seat back of the seat when viewed from the side of the seat. A vehicle interior structure according to claim 3. [Claim 5] The front end of the interior member is engaged with the edge of the opening. A vehicle interior structure according to claim 3. [Claim 6] a lining disposed between the front end of the interior member and the edge of the opening; A vehicle interior structure according to claim 5. [Claim 7] a front end portion of the interior member engaged with an edge portion of the opening; a rear end portion of the interior member is fixed to the periphery of another opening formed in a vehicle body panel located behind the seat, the opening being different from the opening; A vehicle interior structure according to claim 3. [Claim 8] The interior member has a low-rigidity portion, which is located below and adjacent to the shoulder rest portion and has lower rigidity than the shoulder rest portion. The vehicle interior structure according to claim 1. [Claim 9] The interior member has a weak portion provided at a position overlapping the low rigidity portion in a side view of the seat. A vehicle interior structure according to claim 8. [Claim 10] The weak portion is provided on the front side of the seat, A vehicle interior structure according to claim 9. [Claim 11] The interior member is configured such that the shoulder pad portion, which is a separate part from the trim, is fixed to a surface of the trim facing the passenger compartment, the surface being attached to a vehicle body panel located to the side of the seat. The vehicle interior structure according to claim 1. [Claim 12] The trim has a support portion that supports the shoulder portion, and is fixed to a vehicle body panel at a portion adjacent to the support portion. The vehicle interior structure according to claim 11. [Claim 13] The trim is disposed with a predetermined gap between it and a vehicle body panel located on the side of the seat. The vehicle interior structure according to claim 11. [Claim 14] A seat belt strap is placed in the gap. A vehicle interior structure according to claim 13. [Explanation of symbols]

[0085] 100...Cabin structure 110...Front floor panel (body panel) 120...Back floor panel (body panel) 130...Back cabin panel (body panel) 140...Front side panel (body panel) 150...Roof side panel (body panel) 160...Side cabin panel (body panel) 170...Tire house inner panel (body panel) 180…seat 180B…Seat back 210...Lower trim (interior parts) 212...Support part 214...Opening (weak part) 216...Fixed part 220...Lining 232...Protruding part (shoulder rest) 234B...Slit (weak part) 236...Cushion part (low rigidity part) 260…Strap 330... Pillar inner panel (panel) DO...Door opening (opening) RO...Rear window opening (other openings)

Claims

1. An interior member attached to a vehicle body panel located on the side of a seat on which an occupant sits, the interior member has a shoulder rest portion that protrudes toward the passenger compartment from a position adjacent to and below a seat belt anchor provided on the vehicle body panel within a range between an upper end and a lower end of the steering wheel in the vertical direction, Cabin structure.

2. An interior member attached to a vehicle body panel located on the side of a seat on which an occupant sits, the interior member has a shoulder rest portion that protrudes toward the vehicle interior from a position facing the side of the shoulder of an occupant of a standard build who will be seated in the seat, The shoulder rest portion is provided at a position adjacent to and below a seat belt anchor provided on the vehicle body panel. Cabin structure.

3. The shoulder rest is provided on an edge of a door opening provided in the vehicle body panel. The vehicle interior structure according to claim 1 or 2.

4. The edge portion is a rear edge portion of the door opening. The vehicle interior structure according to claim 3.

5. The shoulder pad portion is disposed so as to overlap a lining provided on an edge portion of a door opening provided on the vehicle body panel. The vehicle interior structure according to claim 1 or 2.

6. The edge portion is a rear edge portion of the door opening. The vehicle interior structure according to claim 5.

7. The shoulder rest portion has a flat surface portion that is flat in the vertical direction, A lower portion of the planar portion has an inclined portion that is spaced apart from the seat back of the seat. The vehicle interior structure according to claim 1 or 2.

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