JP2022023683A - Rear part structure for vehicle - Google Patents

Abstract

To provide, according to at least one embodiment of the present invention, a reinforcement member of a rear gate opening with a contact portion for storage of a rear seat of a backward rotation storage type to restrict a rotation range as well as efficiently transmit the load of baggage, acting on the stored rear seat, to a skeleton member of a vehicle body.SOLUTION: A rear part structure for a vehicle having a rear gate opening 5 at a rear end of a vehicle body and having a rear seat 7 of a backward rotation storage type in front of the rear gate opening, includes: a rear side member 19 extending in forward and backward directions of the vehicle; a rear floor panel 15 provided on the rear side member; a rear end panel 13 provided below the rear gate opening; and a reinforcement member 27 coupled to the rear side member and the rear end panel. The reinforcement member is provided with a stopper portion 35 with which, when the rear seat of the backward rotation storage type is rotated in a backward direction of the vehicle and stored, a skeleton member of the rear seat comes into contact.SELECTED DRAWING: Figure 1

Description

The present disclosure relates to the rear structure of the vehicle.

A rear end panel extending in the vehicle width direction below the rear gate opening formed at the rear end of the vehicle body, and a rear side member which is a skeleton member extending in the front-rear direction of the vehicle body by connecting the rear end to the rear end panel. In the rear structure of the vehicle provided with the above, a strength reinforcing member is provided at the joint portion between the rear end panel and the rear side member to improve the strength of the rear portion of the vehicle body.

For example, Patent Document 1 describes a rear pumper support structure for an automobile, which can prevent the bumper stay from collapsing and also increase the strength in the vicinity of the back door opening, and comprises a rear side member and a rear end panel. A structure is shown in which a strength reinforcing member and a reinforcing plate are attached to the vehicle interior side at a substantially vertical joint portion.

On the other hand, the rear seat of the vehicle is arranged in front of the rear end panel, and in the state where the seat back is folded toward the seat cushion in the rear seat, both the seat cushion and the seat back rotate to the rear side of the vehicle and are folded. It is known that the vehicle is tilted and stored at an angle along the front-rear direction of the vehicle in a closed state. For example, it is shown in Patent Document 2 and Patent Document 3.

Japanese Unexamined Patent Publication No. 2009-208610 Japanese Unexamined Patent Publication No. 2018-94976 Japanese Unexamined Patent Publication No. 2018-94974

Patent Document 1 discloses that a reinforcing member that also enhances the strength in the vicinity of the back door opening is installed on the vehicle interior side, and this strength reinforcing member is applied to the rotating seat of the rear seat stored in front of the rear end panel. Not shown to be used as a department.

Further, Patent Document 2 and Patent Document 3 show the rotating seat of the rear seat stored in front of the rear end panel, but do not disclose the contact portion when the rotating seat is stored. Since the surface of the rotating seat that appears on the indoor side after storage functions as the floor surface of the luggage compartment, it is required that the load load be efficiently transmitted to the skeleton member of the vehicle body to the contact portion that supports the stored state of the rotating seat. To.

Therefore, in view of the above problems, at least one embodiment of the present invention is provided with a rear rotation retractable rear seat seat resting portion on the reinforcing member of the rear gate opening. It is an object of the present invention to regulate the rotation range and to provide a rear structure of a vehicle capable of efficiently transmitting a load load acting on a rear seat after storage to a skeleton member of a vehicle body.

(1) It was invented to achieve the above-mentioned object, and at least one embodiment of the present invention has a rear gate opening at the rear end of the vehicle body and is rotationally retracted in front of the rear gate opening. A rear floor structure of a vehicle provided with a rear seat of the type, a pair of left and right rear side members extending in the front-rear direction of the vehicle, and a rear floor panel provided above the rear side members to form a rear luggage compartment floor of the vehicle. A rear end panel extending below the rear gate opening in the vehicle width direction and connecting to the rear end portion of the rear side member, and one end portion connecting to the rear side member via the rear floor panel. The other end thereof is provided with a reinforcing member that is coupled to the rear end panel, and the skeleton member of the rear seat is hit against the reinforcing member when the rear rotation retractable rear seat is rotated and stored in the rear of the vehicle. A stopper portion is provided.

According to such a configuration (1), when the rear rotation retractable seat is rotated and stored in the rear of the vehicle, the skeleton member of the rear seat seat hits the stopper portion provided on the reinforcing member, so that the rear seat seat The range of rotation toward the rear of the vehicle is reliably regulated by a simple structure.

Further, since the surface of the rear seats that appears on the indoor side after storage functions as the floor surface of the luggage compartment, a load load also acts on the stopper portion that supports the retracted state of the rear seats. Since the stopper portion is provided on the reinforcing member and the reinforcing member is coupled to the rear side member which is the skeleton member of the vehicle body, the load can be efficiently transmitted to the rear side member which is the skeleton member of the vehicle body. Therefore, the burden on the rear floor panel is reduced as compared with the structure in which the rear seat is directly applied to the rear floor panel constituting the rear luggage compartment floor surface of the vehicle to support the retracted state of the rear seat. That is, the rear floor panel is less likely to be damaged by the rear seats after rotation.

(2) In some embodiments, the stopper portion is a contact surface to which the lower surface of the seat frame constituting the rear seat is in a retracted state.

According to such a configuration (2), since the stopper portion is a contact surface against which the lower surface of the seat frame constituting the rear seat seat is in the retracted state, the rear rotation retractable rear seat seat is directed to the rear side of the vehicle. Rotation is reliably regulated, and the load of luggage acting on the rear seats after storage can be reliably transmitted to the rear side members.

(3) In some embodiments, one end of the reinforcing member is coupled to the rear side member via the rear floor panel by a plurality of bolts, and the contact surface is sandwiched between the plurality of bolts in a plan view. Formed in position.

According to such a configuration (3), the contact surface is formed at a position sandwiched between a plurality of bolts in a plan view, that is, the contact surface is located in the vicinity of the bolts and therefore acts on the contact surface. The load can be reliably transmitted to the rear side members.

(4) In some embodiments, the contact surface is formed on the top surface of the bead raised from the bolt fastening surface so as to be located above the upper end position of the bolt.

According to such a configuration (4), since the contact surface is formed on the top surface of the bead raised from the bolt fastening surface so as to be located above the upper end position of the bolt, the seat frame is stored in the contact surface. The contact of the bottom surface in the state is not damaged by the bolt. In addition, the raised beads improve the rigidity of the reinforcing member.

(5) In some embodiments, the reinforcing member is a plate-shaped member provided so as to be inclined in the front-rear direction of the vehicle, and the one end portion located on the lower side is connected to the rear side member via the rear floor panel. The other end located on the upper side is configured by a rear end brace coupled to the rear end panel above the rear floor panel, and the stopper portion is provided at the one end portion.

According to such a configuration (5), the brace structure of the rear end brace can improve the rigidity around the rear end panel at the rear of the vehicle body, and one end of the rear end brace is used as a stopper, so that the rear end brace is used. The range of rotation of the rotary retractable seat toward the rear of the vehicle can be regulated by a simple structure.

According to at least one embodiment of the present invention, by providing the reinforcing member of the rear gate opening with a contact portion for retracting the rear seat of the rear rotation retractable type, the rear seat can be moved to the rear side of the vehicle during storage. The rotation range is surely regulated, and the load of luggage acting on the rear seats after storage can be efficiently transmitted to the rear side member which is a skeleton member of the vehicle body.

It is a rear structure of the vehicle which concerns on one Embodiment of this invention, and is the perspective view of the vehicle body which looked at the rear end panel side from the vehicle interior side. It is an enlarged perspective view of the part of the reinforcing member in one embodiment of FIG. It is a side view of the cross section of the main part showing the state where the rear seat of the rear rotation retractable type is retracted. 3 is a schematic cross-sectional view taken along the line BB of FIG. 2 in part C of FIG. It is a front view of the cross section of the main part which shows the state which the rear seat of the rear rotation retractable type is retracted, and looked at the rear of a vehicle from the inside of a vehicle. FIG. 3 is a schematic cross-sectional view taken along the line AA of FIG. 2 in part D of FIG. It is a side schematic diagram which shows the storage procedure of a rear seat. It is a side schematic diagram which shows the storage procedure of a rear seat. It is a side schematic diagram which shows the storage procedure of a rear seat.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. However, the relative arrangement of the components described as the embodiment or shown in the drawings is not intended to limit the scope of the present invention to these, and is merely an explanatory example. The directions of up, down, front, back, left and right in the explanation are defined as the direction in which the occupant looks forward from the driver's seat. In each figure, "FR" indicates the front, "RHD" indicates the right side, and "UPR" indicates the upper side.

An embodiment of the present invention will be described with reference to FIGS. 1 to 7. FIG. 1 shows the rear body structure 3 of the vehicle 1. FIG. 1 is a perspective view of the rear of the vehicle 1 from the vehicle interior side. Vehicle 1 is. A rear gate opening 5 opened and closed by a back door (not shown) is provided at the rear of the vehicle body.

A rear rotation retractable rear seat 7 is provided in front of the rear gate opening 5 as shown in FIG. 7A or the like, so that a rear passenger compartment 9 used as a luggage compartment space or a passenger compartment space is formed. It has become. It is configured so that the rear passenger compartment 9 can be accessed by opening and closing the back door. The rear seat 7 is an example of the rearmost seat of the three-row seat or the two-row seat, but the seat may be the rearmost seat without being particular about the number of rows.

First, the rear body structure 3 of the vehicle 1 will be described. As shown in FIG. 1, a pair of left and right rear pillars 11 forming the rear gate opening 5 are provided, and both ends in the vehicle width direction are connected to the lower ends of the rear pillars 11 to form a rear end constituting the lower side of the rear gate opening 5. A panel 13 is provided.

A rear floor panel 15 forming a floor is arranged at the bottom of the rear passenger compartment 9 used as a luggage compartment space or a passenger compartment space. Both sides of the rear floor panel 15 are connected to the rear wheel house 17, and the rear end of the rear floor panel 15 is connected to the inner side panel 13a formed substantially vertically of the rear end panel 13.

On the lower surface of both sides of the vehicle of the rear floor panel 15, rear side members 19 having an inverted hat-shaped (concave shape with an upper opening) cross section extending along the side of the rear wheel house 17 extend in a pair of left and right directions in the front-rear direction of the vehicle. .. The rear floor panel 15 and the rear side member 19 form a closed cross-sectional portion 21 (see FIG. 6) in the vehicle width direction. Also. The rear end portion of the rear side member 19 is connected to the inner side surface panel 13a of the rear end panel 13.

A reinforcing member 23 is provided, one end of which is connected to the rear side member 19 via the rear floor panel 15, and the other end of which is connected to the inner side surface panel 13a of the rear end panel 13.

As shown in FIGS. 1 and 2, the reinforcing member 23 is, for example, a plate-shaped sheet metal member inclined in the front-rear direction of the vehicle, and one end located on the lower side of the inclination is a rear side member via a rear floor panel 15. The other end, which is connected to 19 by a bolt 25 and is located on the upper side of the slope, is connected to the inner side panel 13a of the rear end panel 13 above the rear floor panel 15, and is connected to the substantially horizontal rear side member 19 and the substantially vertical rear end panel. It has a so-called brace structure in which 13 is reinforced with an oblique member. As described above, the reinforcing member 23 is composed of the rear end brace 27.

As shown in FIG. 3, the rear end panel 13 is formed by the inner side surface panel 13a and the outer side surface panel 13b to form a closed cross-sectional portion of the other end portion of the rear end brace 27 located on the inclined upper side and connected to the rear end panel 13. It has and is connected to the inner side panel 13a by a bolt 29.

A bulkhead 16 for partitioning the closed cross-section portion 14 in the vehicle width direction is provided inside the closed cross-section portion 14 formed by the inner side surface panel 13a and the outer surface panel 13b of the rear end panel 13, and the strength of the rear end panel 13 is increased. Has been done.

Further, as shown in FIGS. 1 and 2, the rear end brace 27 is formed with a plurality of vertical beads 31 formed in an uneven shape along the vehicle width direction and extending along the vehicle front-rear direction for reinforcement. ..

Then, when the rear rotation retractable rear seat 7 is rotated and stored in the rear of the vehicle on the vehicle center side in the vehicle width direction, which is one end portion of the rear end brace 27 located on the lower side of the inclination, the rear seat is stored. A stopper portion 35 is provided to which the seat back frame 33, which is a skeleton member of the seat 7, hits.

As shown in FIGS. 1 and 2, the stopper portion 35 is configured as, for example, a contact surface 37 on which a part of the lower surface of the seat back frame 33 of the rear seat 7 at the time of storage is in contact with the lower surface.

FIGS. 3 to 6 show a state in which a part of the lower surface of the seat back frame 33 in the retracted state hits the contact surface 37. FIG. 3 shows a state in which the rear seat 7 is stored, and is a side view of a cross section of a main part, in which the seat back 7a and the seat cushion 7b are overlapped and rotated to the rear side of the vehicle and stored. Is shown.

FIG. 4 is an enlarged view showing an outline of a cross-sectional view taken along the line BB of FIG. 2 in the portion C of FIG. 3, and as shown in FIG. 4, the end portion of the pipe-shaped seat back cross frame 33a in the vehicle width direction and the reclining mechanism. The lower surface of the side frame 33b connected to the 39 in the retracted state shows a state of contacting the contact surface 37 via the skin 40 of the seat back 7a.

Further, as shown in FIGS. 3 and 4, the front and rear bolts 25 and 25 on the lower inclined side of the rear end brace 27 are installed at intervals in the front-rear direction of the vehicle, and the flange portion of the rear side member 19 is installed via the rear floor panel 15. Fasten to 19a. Further, the contact surface 37 is arranged between the bolts 25 and 25 before and after the contact surface 37.

FIG. 5 shows a state in which the rear seats 7 are stored, and is a front view of a cross section of a main part of the vehicle as viewed from the inside of the vehicle. The state where the headrest 7c attached to 7a is sandwiched is shown.

Further, as shown in FIG. 5, the left and right bolts 25, 25 on the lower inclined side of the rear end brace 27 are installed at intervals in the vehicle width direction, and are installed on the flange portion 19a of the rear side member 19 via the rear floor panel 15. To conclude. Further, the vertical beads 31 and 31 are arranged between the left and right bolts 25 and 25.

FIG. 6 is an enlarged view showing an outline of a cross-sectional view taken along the line AA of FIG. 2 in the portion D of FIG. As shown in FIG. 6, the lower surface of the pipe-shaped seat back cross frame 33a in the vehicle width direction and the side frame 33b connected to the reclining mechanism 39 in the retracted state is a contact surface 37 via the skin 40 of the seat back 7a. Indicates the state of hitting.

Next, the procedure for storing the rear rotation retractable rear seat 7 will be described with reference to FIGS. 7A to 7C. The storage is performed in the order of FIG. 7A → FIG. 7B → FIG. 7C. In the present embodiment, the rear seat 7 shows a bench type in which the left and right seating portions and the left and right backrest portions are integrated on the left and right sides.

FIG. 7A shows the storage start state as the first step. In a normal use state, the seat cushion 7b constituting the seating portion of the rear seat 7 and the seat back 7a constituting the backrest portion are connected by a reclining mechanism 39, and the seat back 7a is predetermined with respect to the seat cushion 7b. It is set to the reclining angle of and used as a rear seat. At the start of storage, the reclining mechanism 39 folds the seat back 7a toward the seat cushion 7b.

The reclining mechanism 39 is fixed to the vehicle body side of the rear floor panel 15 or the rear wheel house 17 via the hinge bracket 41. Further, the seat cushion 7b is fixed on the rear floor panel 15 by a lock mechanism (not shown) that can be locked and unlocked.

FIG. 7B shows a backward rotation state as the second step. The seat back 7a is folded toward the seat cushion 7b by the reclining mechanism 39 and overlapped with the upper surface of the seat cushion 7b. When the seat cushion 7b is unlocked by releasing the lock mechanism, the seat cushion 7b and the seat back 7a are integrally supported by the hinge bracket 41 in the folded state and can rotate to the rear side of the vehicle. Become.

FIG. 7C shows the storage completion state as the third step. The seat cushion 7b and the seat back 7a are integrally rotated toward the rear side of the vehicle, and are tilted and stored in a state of being overlapped at an angle along the front-rear direction of the vehicle. When the seat back frame 33 is stored, a part of the lower surface of the seat back frame 33 hits the contact surface 37, so that the rotation range toward the rear side of the vehicle is restricted and the seat back frame 33 is stored in a state of being overlapped at an angle along the front-rear direction of the vehicle. Will be done.

As described above, the reclining mechanism 39, the hinge bracket 41, and the lock mechanism (not shown) are configured so that the rear seat 7 can be folded and rotated to the rear side and stored by the procedure of FIGS. 7A to 7C.

According to the embodiment described above, since the contact surface 37 constituting the stopper portion 35 is provided by using a part of the rear end brace 27 which is a reinforcing member, a part corresponding to the stopper portion is newly added to the rear floor panel 15 or the like. There is no need to install it, and the rear structure of the vehicle can be simplified. Further, the contact surface 37 can surely regulate the rotation range of the rear seat 7 toward the rear side of the vehicle at the time of storage.

Further, since the back side surface of the seat cushion 7b that appears on the indoor side after storage functions as the luggage compartment floor surface, the luggage load also acts on the contact surface 37. Since the contact surface 37 is formed on the rear end brace 27 connected to the rear side member 19, the load load acting on the contact surface 37 can be efficiently transmitted to the rear side member 19 which is a skeleton member of the vehicle body.

Therefore, the burden on the rear floor panel 15 is reduced as compared with the structure in which the rear seat 7 at the time of storage is directly hit and supported by the rear floor panel 15. That is, the rear floor panel 15 is less likely to be damaged by the rear seat 7 when retracted.

Further, according to the present embodiment, the contact surface 37, which is the stopper portion 35, is the surface on which the lower surface of the seat back frame 33 of the rear seat 7 in the retracted state abuts when the seat back seat 7 is stored, that is, the urethane foam of the seat back 7a. It is not a member that is easily deformed like the above, but a rigid body part, and since it hits the frame so as to support the lower surface in the retracted state from below, the rotation range to the rear side of the vehicle can be reliably regulated, and the rear seat after storage can be reliably regulated. The load on the seat 7 can be reliably transmitted to the rear side member 19.

Further, according to the present embodiment, since the rear end brace 27 has a so-called brace structure in which the substantially horizontal rear side member 19 and the substantially vertical rear end panel 13 are reinforced by diagonal members, the rear end panel 13 at the rear of the body is formed. Since the rigidity of the surroundings can be effectively improved and a part of the rear end brace 27 is used as the contact surface 37, the rotation range of the rear rotation retractable rear seat 7 toward the rear side of the vehicle is widened. It can be regulated by a simple structure.

In some embodiments, as shown in FIGS. 1-4, one end of the rear end brace 27 is coupled to the rear side member 19 via the rear floor panel 15 by a plurality of bolts 25, with the contact surface 37 in plan view. It is formed at a position sandwiched between a plurality of bolts 25, 25 in the front-rear direction of the vehicle.

According to such a configuration, the contact surface 37 is sandwiched between a plurality of bolts 25 and 25 (two arranged in the front-rear direction of the vehicle) in a plan view and is located in the vicinity of the bolt 25. The load load acting on the 37 can be reliably transmitted to the rear side member 19.

In some embodiments, as shown in FIG. 4, the contact surface 37 is the top of the lateral bead 43 raised above the bolt fastening surface of the rear end brace 27 so that it is located above the position of the upper end (bolt head) of the bolt 25. It is formed on the surface.

Further, as shown in FIGS. The bead shape is continuous by connecting to one of a plurality of existing vertical beads 31. The height of the horizontal bead 43 from the bolt fastening surface is formed higher than the height of the vertical bead 31, but the contact surface 37 is located above the position of the upper end (bolt head) of the bolt 25. If there is, it may be adjusted to the same height as the vertical bead 31.

According to such a configuration, the contact surface 37 is formed on the top surface of the lateral bead 43 that is raised from the bolt fastening surface of the rear end brace 27 so as to be located above the position of the bolt head of the bolt 25. The contact of the lower surface of the seat back frame 33 with the surface 37 in the retracted state is not impaired.

Further, the lateral bead 43 extending along the vehicle left-right direction further improves the rigidity of the rear end brace 27 in combination with the plurality of vertical beads 31 extending along the vehicle front-rear direction.

According to the present embodiment described above, regarding the rear rotation retractable rear seat 7, the case where the left and right seating portions and the left and right backrest portions are integrated into the left and right bench type has been described, but the left and right seating portions have been described. And the left and right backrests may be separate types, respectively, in which case the contact surface 37 formed on the left and right rear end braces 27. The backrests of the left and right separated seats are supported by touching the outer part of the seat back frame in the vehicle width direction or a part of the seat back frame. Further, in the case of the separate type, the procedure of FIGS. 7A to 7C already described is performed on each of the left and right separation sheets.

According to at least one embodiment of the present invention, the reinforcing member of the rear gate opening is provided with a contact portion for retracting the rearward rotation retractable seat. It is suitable for use in the rear structure of a vehicle because it can regulate the rotation range and efficiently transmit the load of luggage acting on the seat after storage to the skeleton member of the vehicle body.

1 Vehicle 3 Rear body structure 5 Rear gate opening 7 Rear seat 7a Seat back 7b Seat cushion 11 Rear pillar 13 Rear end panel 15 Rear floor panel 17 Rear wheel house 19 Rear side member 19a Rear side member flange 23 Reinforcing member 25, 29 Bolt 27 Rear end brace 31 Vertical bead 33 Seat back frame 33a Seat back cross frame 33b Side frame 35 Stopper 37 Support surface 40 Seat back skin 43 Horizontal bead

Claims (5)

A rear structure of a vehicle having a rear gate opening at the rear end of the vehicle body and a rear rotation retractable rear seat in front of the rear gate opening.
A pair of left and right rear side members that extend in the front-rear direction of the vehicle,
A rear floor panel provided on the rear side member and constituting the rear luggage compartment floor of the vehicle, and a rear floor panel.
A rear end panel extending below the rear gate opening in the vehicle width direction and connecting to the rear end of the rear side member,
One end is provided with a reinforcing member that is connected to the rear side member via the rear floor panel, and the other end is provided with a reinforcing member that is connected to the rear end panel.
The rear structure of the vehicle is characterized in that the reinforcing member is provided with a stopper portion that the skeleton member of the rear seat seat hits when the rear seat of the rear rotation retractable type is rotated and stored in the rear of the vehicle. The rear structure of the vehicle according to claim 1, wherein the stopper portion is a contact surface against which the lower surface of the seat frame constituting the rear seat is in a retracted state. One end of the reinforcing member is connected to the rear side member via the rear floor panel by a plurality of bolts, and the contact surface is formed at a position sandwiched between the plurality of bolts in a plan view. The rear structure of the vehicle according to claim 2. The rear structure of a vehicle according to claim 3, wherein the contact surface is formed on a bead-shaped top surface that is raised from a bolt fastening surface so as to be located above the upper end position of the bolt. The reinforcing member is a plate-shaped member provided so as to be inclined in the front-rear direction of the vehicle, and the one end portion located on the lower side is connected to the rear side member via the rear floor panel, and the other end portion located on the upper side is connected to the rear side member. The vehicle according to any one of claims 1 to 4, wherein is configured by a rear end brace coupled to the rear end panel above the rear floor panel, and the stopper portion is provided at the one end portion. Rear structure.

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