JP6068415B2 - Body structure with tailgate - Google Patents

Description

  The present invention relates to a vehicle body structure with a tailgate that includes a tailgate that opens and closes a rear opening of a vehicle, and that includes a latch device that holds the tailgate in a closed position and a striker.

  Some body structures with a tailgate include a tailgate that opens and closes a rear opening at the rear of the vehicle, a latch device at the bottom of the tailgate, and a striker at the rear of the vehicle. In a state where the tailgate is closed, the latch device is engaged with the striker (see, for example, Patent Document 1).

  On the other hand, some vehicle body structures with side doors are provided with a latch device on the vehicle side and a striker on the door side. In a state where the door is closed, the latch device is engaged with the striker (see, for example, Patent Document 2).

Japanese Patent No. 4399207 JP 2007-169903 A

By the way, in the vehicle body structure with a tailgate of Patent Document 1, since the latch device is provided below the tailgate, it is considered that the latch device is damaged by a collision load from the rear of the vehicle.
In particular, when the lower edge of the rear opening is arranged lower than the rear bumper at the rear part of the vehicle and the lower part of the tailgate is arranged at the position of the rear bumper, the positions of the front bumper and the latch device of the vehicle that collide from the rear of the vehicle There is a risk of becoming the same height.

As a method for suppressing breakage of the latch device due to a collision load from the rear of the vehicle, it is conceivable to provide a latch device on the vehicle side and a striker on the door side as in the vehicle body structure with side doors of Patent Document 2.
However, even if the latch device is provided on the vehicle side, when the tailgate is deformed by a collision load, the deformed tailgate may interfere with the latch device.

  An object of the present invention is to provide a vehicle body structure with a tailgate that can prevent the deformed tailgate from interfering with the latch device when the tailgate is deformed by a collision load.

According to a first aspect of the present invention, there is provided a rear opening provided in a rear portion of a vehicle, a tailgate that opens and closes the rear opening, a striker provided in the tailgate, provided in the vehicle, and provided in the striker. An engaging latch device,
A rear lower frame having a closed cross-sectional shape that forms a lower edge of the rear opening and extends continuously in the vehicle width direction at the rear of the vehicle;
A rear end portion of the rear lower frame is provided in front of the tailgate in the vehicle, and overlaps the tailgate as viewed from the rear of the vehicle;
The latch device is provided in front of the vehicle from the rear end of the rear lower frame ,
The latch device is attached to the upper surface of the rear lower frame,
A separate bracket is attached to the rear lower frame,
The bracket is provided above the latch device .

According to a second aspect of the present invention, the step garnish covers the latch device, and the step garnish covers the bracket.

According to a third aspect of the present invention, a maintenance opening for maintaining and inspecting the latch device is provided on a front surface of the step garnish, and the maintenance opening faces the latch device in a vehicle front-rear direction.

According to a fourth aspect of the present invention, the tailgate includes a subdoor opening that communicates with the rear opening, and a subdoor that opens and closes the subdoor opening, and the subdoor is provided at a position overlapping the latch device when viewed from the rear of the vehicle. It is characterized by that.

According to a fifth aspect of the present invention, the sub door is overlapped with a rear end portion of the rear lower frame from the rear of the vehicle.

According to a sixth aspect of the present invention, the rear lower frame is formed in a closed cross-section by joining flanges of the outer panel and the inner panel, and at the rear end portion of the rear lower frame, The joining flange is projected in the vehicle front-rear direction.

According to a seventh aspect of the present invention, the latch device includes a striker insertion hole into which the striker is inserted, and both sides of the striker insertion hole in the vehicle width direction are fastened to the rear lower frame.

In the invention according to claim 1, the rear lower frame of the closed cross section is provided at the rear portion of the vehicle, and the rear end portion of the rear lower frame is provided in front of the tailgate of the vehicle. Furthermore, a latch device is provided in front of the vehicle from the rear end of the rear lower frame.
Therefore, when the tailgate is deformed to the front side of the vehicle due to the collision load, the deformed tailgate comes into contact with the rear end portion of the rear lower frame. As a result, the deformed tailgate can be prevented from entering the latch device, and the tailgate can be prevented from interfering with the latch device.

A latch device was attached to the upper surface of the rear lower frame. The rear lower frame is a member having a closed cross section and high rigidity. By attaching the latch device to the upper surface of the rear lower frame having high rigidity, the latch device can be firmly supported by the rear lower frame, and the support rigidity of the so-called latch device can be increased.

Further, by attaching the latch device to the upper surface of the rear lower frame, the striker can be separated above the rear lower frame when the striker of the tailgate engages with the latch device.
Thereby, since a striker does not interfere with a rear lower frame, the freedom degree at the time of determining the attachment position of a striker, ie, a latch apparatus, can be raised.

A separate bracket is attached to the rear lower frame, and the bracket is provided above the latch device. That is, the latch device can be arranged below the bracket. Thereby, when an occupant gets on and off from the rear opening, and when a luggage is taken in and out from the rear opening, it is possible to prevent the occupant and the luggage from hitting the latch device.

In the invention which concerns on Claim 2 , the step garnish which covers a latch apparatus was provided. By covering the latch device with the step garnish, the latch device can be prevented from being exposed to the outside, and the appearance is improved.

In the invention according to claim 3 , the maintenance opening is provided on the front surface of the step garnish, and the maintenance opening is opposed to the latch device. As a result, when it is difficult to ensure good operation of the latch device due to a battery failure or the like, the tail gate can be mechanically opened by manually operating the latch device from the maintenance opening.

In the invention according to claim 4 , the tailgate is provided with the sub door, and the sub door is provided at a position overlapping the latch device when viewed from the rear of the vehicle. Therefore, compared with the case where the collision load is absorbed only by the tailgate, the collision load can be absorbed by both the sub door and the tailgate.
Thereby, it can suppress more reliably that a tailgate contact | abuts to a latch apparatus.

In the invention which concerns on Claim 5 , the subdoor was piled up from the vehicle rear on the rear-end part of a rear lower frame. Therefore, when the sub door is deformed to the vehicle front side due to the collision load, the rear end portion of the rear lower frame can suppress the deformed sub door from entering the latch device side. Thereby, it can prevent that the deformed subdoor interferes with the latch device.

In the invention which concerns on Claim 6 , each flange of an outer panel and an inner panel was provided in the rear-end part of the rear lower frame, and the joining flange which joined each flange protruded in the vehicle front-back direction. Accordingly, the impact load input from the rear of the vehicle can be efficiently supported by the joint flange. Thereby, it can suppress that a rear lower frame deform | transforms with an impact load.

In the invention according to claim 7 , both sides in the vehicle width direction of the striker insertion hole of the latch device are fastened to the rear lower frame. Therefore, when the striker is inserted into the striker insertion hole and a load is applied from the striker to the latch device, the load can be similarly supported by the fastening portions on both sides.
Accordingly, the latch device can be prevented from being tilted by a load applied from the striker to the latch device, so that the striker can be reliably engaged with the latch device (specifically, the latch).

It is a rear view which shows the state which looked at the vehicle body structure with a tailgate which concerns on this invention from the vehicle rear. FIG. 2 is a rear view showing a state in which a tailgate of the vehicle body structure with a tailgate in FIG. 1 is opened. It is a rear view which shows the state which opened the subdoor of the vehicle body structure with a tailgate of FIG. FIG. 4 is a sectional view taken along line 4-4 of FIG. FIG. 5 is a cross-sectional view showing a state in which a tailgate and a sub door are disassembled from the vehicle body structure with a tailgate of FIG. FIG. 6 is an enlarged view of 6 parts in FIG. 4. FIG. 7 is an enlarged view of part 7 of FIG. 5. FIG. 8 is a cross-sectional view taken along line 8-8 in FIG. 1. FIG. 9 is a sectional view taken along line 9-9 in FIG. 8. FIG. 10 is an enlarged view of 10 parts in FIG. 9. It is the 11-11 line sectional view of Drawing 1. FIG. 12 is a cross-sectional view illustrating a state where the tailgate and the sub door are disassembled from the vehicle body structure with a tailgate in FIG. 11. FIG. 12 is an enlarged view of 13 parts in FIG. 11. It is sectional drawing which shows the state which removed the cover from the vehicle body structure with a tailgate of FIG. FIG. 15 is a view taken in the direction of arrow 15 in FIG. 12.

  The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. Note that “front (Fr)”, “rear (Rr)”, “left (L)”, and “right (R)” follow the direction seen from the driver.

A vehicle body structure 10 with a tailgate according to an embodiment will be described. Hereinafter, the vehicle body structure 10 with a tailgate is abbreviated as the vehicle body structure 10.
As shown in FIGS. 1 and 2, the vehicle body structure 10 includes a rear opening 13 provided in the rear portion 11 a of the vehicle 11, a plurality of gate support shafts 14 provided in the rear portion 11 a of the vehicle 11, and a plurality of gate support shafts 14. And a tailgate 15 that opens and closes the rear opening 13.

Further, the vehicle body structure 10 includes a latch device 18 provided in the rear portion 11a of the vehicle 11, a seat 24 provided in the vehicle interior 21 of the vehicle 11, and an accommodation recess 28 (see FIG. 4) provided in the rear of the vehicle of the seat 24. I have.
In a state where the tailgate 15 is closed, the striker 19 of the tailgate 15 is engaged with the latch device 18, and the tailgate 15 is locked in the closed position.

The tailgate 15 includes a gate body 31 supported on the upper portion 11b of the rear portion 11a of the vehicle 11 via a plurality of gate support shafts 14 so as to be rotatable in the vertical direction, and a gate window glass 32 provided on the gate body 31. The upper gate outer surface member 33 provided below the gate window glass 32 and the lower gate outer surface member 34 provided below the upper gate outer surface member 33 are provided.
The gate body 31 is a member that forms the rear portion 11 a of the vehicle 11.
The upper gate outer surface member 33 and the lower gate outer surface member 34 are resin members that form the outer surface of the tailgate 15.

  Further, as shown in FIG. 3, the tailgate 15 includes a subdoor opening 35 formed in the gate body 31 on the left side of the gate window glass 32, the upper gate outer surface member 33, and the lower gate outer surface member 34.

In addition, the tailgate 15 includes an upper door hinge 38 and a lower door hinge 38 provided on the right side 31a of the sub door opening 35, a sub door 40 having a right edge 40a attached to the upper door hinge 38 and the lower door hinge 38, and a gate body. The striker 19 (refer FIG. 2) provided in 31 is provided.
The subdoor opening 35 communicates with the rear opening 13 in a state where the tailgate 15 is closed.

As shown in FIG. 2, the rear opening 13 is opened by the tailgate 15 being opened upward and arranged substantially horizontally. By opening the rear opening 13, the inside 21 and the outside 22 of the vehicle communicate with each other, and passengers can get on and off and take in and out the luggage.
On the other hand, the tailgate 15 is arranged substantially vertically by closing the tailgate 15 downward. In this state, the rear opening 13 is closed by the tail gate 15, and the striker 19 of the tail gate 15 is engaged with the latch device 18.

  Returning to FIG. 3, the right side edge 40 a of the sub door 40 is rotatably supported by the right side 31 a of the gate body 31 by the upper door hinge 38 and the lower door hinge 38. Therefore, the open end (that is, the left edge) 40b of the sub door 40 can be opened horizontally in the direction toward the vehicle exterior 22 with respect to the gate body 31.

In this way, the sub door 40 is opened and closed by the sub door 40 by rotating in the horizontal direction around the upper door hinge 38 and the lower door hinge 38 as axes.
The sub door 40 includes a door main body 41 rotatably supported on the right side 31 a of the gate main body 31 via an upper door hinge 38 and a lower door hinge 38, and a door window glass 42 provided on the upper portion of the door main body 41. ing.

  As shown in FIGS. 4 and 5, the door main body 41 includes a metal door inner panel 43 provided on the vehicle interior 21 side, and a metal door outer panel 44 provided on the vehicle exterior 22 side from the door inner panel 43. And a resin door outer surface member 45 provided on the vehicle exterior 22 side from the lower half of the door outer panel 44.

The rear opening 13 includes a rear lower frame (closed cross section) 47 formed of a metal panel in a closed cross-sectional shape, a bracket 48 provided on a frame upper surface 47a of the rear lower frame 47, and an upper portion of the bracket 48 and the rear lower frame 47. And a vehicle body side step (step garnish) 49 attached to the vehicle.
A lower edge portion (hereinafter referred to as “rear lower edge portion”) 16 of the rear opening 13 is formed by the rear lower frame 47, the bracket 48, and the vehicle body side step 49.

The rear lower frame 47 includes a rear inner panel (inner panel) 51 and a rear outer panel (outer panel) 52. The front flanges 51a and 52a of the rear inner panel 51 and the rear outer panel 52 are joined, and the rear flanges 51b and 52b of the rear inner panel 51 and the rear outer panel 52 are joined.
Accordingly, the rear lower frame 47 is formed in a closed cross section by the rear inner panel 51 and the rear outer panel 52.
Hereinafter, the joined rear flanges 51b and 52b are referred to as “rear joining flanges (joining flanges) 53”.

As shown in FIGS. 5 and 6, the frame rear end portion 47 b of the rear lower frame 47 is provided in front of the tailgate 15 and overlaps the tailgate 15 when viewed from the rear of the vehicle. A rear joint flange 53 is provided at the frame rear end portion 47b of the rear lower frame 47, and the rear joint flange 53 projects from the frame rear end portion 47b toward the rear of the vehicle.
Accordingly, the impact load F1 input from the rear of the vehicle can be efficiently supported by the joint flange 53. Thereby, it can suppress that the rear lower frame 47 deform | transforms with the impact load F1.

A bracket 48 separate from the rear lower frame 47 is provided on the frame upper surface 47 a of the rear lower frame 47.
The bracket 48 includes a bracket front surface 54 joined to the frame front surface 47c of the rear lower frame 47, a bracket rear surface (rear surface) 55 where the lower end portion 55a is joined to the frame upper surface 47a, an upper end of the bracket front surface 54, and a bracket rear surface 55. And a bracket upper surface 56 connecting the upper ends.

The bracket 48 protrudes upward from the front portion of the frame upper surface 47 a and is disposed inside the vehicle body side step 49. In this state, the bracket rear surface 55 is opposed to the lower front surface of the tailgate 15.
A lower edge portion (hereinafter referred to as “door lower edge portion”) 36 of the sub door opening 35 is formed at the lower portion of the tailgate 15. Further, the lower front surface of the tailgate 15 corresponds to the front surface 36 a of the door lower edge portion 36.
That is, the bracket rear surface 55 is opposed to the front surface 36 a of the door lower edge portion 36.

The vehicle body side step 49 is raised upward from the frame upper surface 47 a of the rear lower frame 47. Therefore, in the state where the tailgate 15 is opened, the vehicle body side step 49 is exposed to the rear of the vehicle.
For this reason, it is conceivable that the occupant's feet or luggage hits the vehicle body side step 49 from the front-rear direction of the vehicle when the passenger gets in or out of the baggage or puts in / out the baggage.

  Therefore, a bracket 48 is provided on the frame upper surface 47 a of the rear lower frame 47, and the bracket 48 is disposed inside the vehicle body side step 49. The bracket 48 is a metal member having high rigidity. Thereby, for example, even when a passenger's foot or luggage hits the vehicle body side step 49, the vehicle body side step 49 can be supported by the bracket 48, and the vehicle body side step 49 can be held in a stable state.

A vehicle body side step 49 is attached above the rear lower frame 47.
The vehicle body side step 49 is a resin-made step garnish having a step front face 61, a pre-step upper face 62, a step rear face 63, and a post-step upper face 64.
In a state where the tailgate 15 is closed, at least a part 36b of the door lower edge portion 36 (that is, the lower portion of the tailgate 15) is disposed above the upper surface 64 after the step or on the frame upper surface 47a of the rear lower frame 47. .

Further, a raised portion 69 is formed by the step front surface 61, the pre-step upper surface 62 and the step rear surface 63. A bracket upper surface 56 is disposed inside the raised portion 69, and a pre-step upper surface 62 is disposed above the bracket upper surface 56.
The upper surface of the rear lower edge portion 16 is formed on the upper surface 62 before the step.

  Here, the rear inner panel 51 and the rear outer panel 52 of the rear lower frame 47 are formed of metal panels. For this reason, if the rear inner panel 51 is raised to the pre-step upper surface 62, it is necessary to deeply draw the rear inner panel 51, which may make it difficult to form the rear inner panel 51.

Therefore, the vehicle body side step 49 is attached above the rear lower frame 47 so that the upper surface of the rear lower edge portion 16 is formed by the upper surface 62 before the step. Therefore, it is not necessary to form the upper surface of the rear lower edge portion 16 with the rear inner panel 51, and deep drawing of the rear inner panel 51 can be suppressed.
Thereby, the moldability of the rear inner panel 51 (that is, the rear lower frame 47) is improved.

Further, a locking claw 65 is provided on the step front surface 61, and a clip (attachment portion) 67 is provided on the upper surface after the step (rear portion of the vehicle body side step) 64 via a seat portion 66. The locking claw 65 is locked in the locking hole 71 of the bracket front surface 54, and the clip 67 is mounted in the mounting hole 72 of the frame upper surface 47a.
Thus, the vehicle body side step 49 is attached to the rear lower frame 47 and the bracket 48.

  Here, by attaching the clip 67 on the upper surface 64 after the step to the attachment hole 72 on the frame upper surface 47a, it is not necessary to attach the clip 67 to the bracket 48. Therefore, it is not necessary to extend the bracket 48 to the rear of the vehicle up to the position of the clip 67. Thereby, the width dimension before and behind the vehicle body of the bracket 48 can be kept small, and the weight reduction of the bracket 48 can be achieved.

As shown in FIG. 7, a plurality of support ribs 74 project from the upper surface 62 before the step toward the bracket upper surface 56. A plurality of support ribs 74 are formed at intervals in the vehicle width direction, and a lower end portion 74 a of each support rib 74 is placed on the bracket upper surface 56.
As a result, when a load is placed on the upper surface before the step 62 (that is, the upper surface of the rear lower edge portion 16) or when the passenger steps on the upper surface 62 before the step and the downward load F2 is applied to the upper surface 62 before the step, The downward load F <b> 2 can be reliably supported by the bracket 48 via the support ribs 74.

Here, the plurality of support ribs 74 are provided between the pre-step upper surface 62 and the bracket upper surface 56. That is, the support rib 74 is not provided on the step front surface 61 or the step upper surface 64. Therefore, the locking claw 65 is provided on the step front surface 61 and the clip 67 is provided on the upper surface 64 after the step, so that the locking claw 65 and the clip 67 are provided avoiding the plurality of support ribs 74.
As a result, it is not necessary to consider interference between the plurality of support ribs 74 and the locking claws 65 and interference between the plurality of support ribs 74 and the clip 67, so the degree of freedom in determining the shape of the vehicle body side step 49 is increased. Can be increased.

As shown in FIGS. 6 and 8, the rear opening 13 is opened and closed by a tailgate 15, and the tailgate 15 includes a subdoor opening 35. The sub door opening 35 is provided with a door lower edge portion 36 at the lower portion.
The door lower edge portion 36 includes a gate lower frame 84 formed of a metal panel in a closed cross section and a gate side step 85 provided on the frame upper surface 84a of the gate lower frame 84.

The gate lower frame 84 includes a gate inner panel (inner panel) 81 disposed on the vehicle interior 21 side, and a gate outer panel (outer panel) 82 disposed on the vehicle exterior 22 side of the gate inner panel 81.
The upper flanges 81a and 82a of the gate inner panel 81 and the gate outer panel 82 are joined, and the lower flanges 81b and 82b of the gate inner panel 81 and the gate outer panel 82 are joined.
As a result, the gate lower frame 84 is formed in a closed cross section by the gate outer panel 82 and the gate inner panel 81.
Hereinafter, the joined upper flanges 81a and 82a are referred to as “upper joining flanges (joining flanges) 83”.

  At the door lower edge portion 36 of the sub door opening 35, the upper joint flange 83 projects upward from the frame upper surface 84 a of the gate lower frame 84. Thereby, it is not necessary to project the upper joint flange 83 in the vehicle front-rear direction, and the thickness dimension of the tailgate 15 (that is, the dimension in the front-rear direction of the tailgate 15) can be kept small.

Further, a gate side step 85 is attached to the frame upper surface 84 a of the gate lower frame 84 with a plurality of clips 87. The plurality of clips 87 are attached to the step upper surface 88 of the gate side step 85 via the seat portion 89 at intervals in the vehicle width direction.
By attaching the clip 87 to the attachment hole 91 of the frame upper surface 84a, the gate side step 85 is attached to the frame upper surface 84a.

As shown in FIG. 9, the gate side step 85 includes a central step 93 extending along the frame upper surface 84a, a left corner portion 94 extending from the left end portion of the central step 93 to the left side of the frame upper surface 84a, and the right end of the central step 93. And a right corner portion 95 extending along the left side of the frame upper surface 84a.
In the central step 93, a part of the lower edge portion of the sub door opening is formed.

Returning to FIGS. 6 and 8, the gate-side step 85 is provided on the frame upper surface 84 a, whereby the upper joint flange 83 is covered from above by the gate-side step 85. The upper surface of the door lower edge portion 36 is formed by the step upper surface 88 of the gate side step 85.
The upper surface 88 of the gate side step 85 (that is, the upper surface of the door lower edge portion 36) 88 is disposed substantially flush with the upper surface of the vehicle side step 49 before the step (that is, the upper surface of the rear lower edge portion 16) 62.
Thereby, in the state which opened the subdoor 40 and opened the subdoor opening 35, a luggage | load can be smoothly taken in / out from the subdoor opening 35. FIG. In particular, when an occupant gets on and off from the sub door opening 35, the passenger can get on and off smoothly without being caught by a step.

Further, by making the upper surface 88 of the door lower edge portion 36 and the upper surface 62 of the rear lower edge portion 16 substantially flush with each other, the tail gate 15 is opened and the rear opening 13 is opened. The upper surface 62 is secured at a suitable height position.
Therefore, the load loaded in the vehicle interior 21 from the sub door opening 35 can be held in the vehicle interior 21 by the upper surface 62 of the rear lower edge portion 16. Thereby, when the tailgate 15 is opened, the rear lower edge portion 16 can prevent the luggage loaded in the vehicle interior 21 from going out of the vehicle.

  Here, the upper joint flange 83 projects in the vertical direction toward the step upper surface 88 of the gate side step 85. As a result, when a load is placed on the upper surface 88 of the door lower edge 36 or a passenger steps on the upper surface 88 of the door lower edge 36, a downward load F3 is applied to the upper surface 88 of the door lower edge 36. Since the upper joint flange 83 extends in the same direction as the load F3, the downward load F3 can be efficiently supported by the upper joint flange 83.

As shown in FIG. 7, the gate side step 85 is provided with a plurality of ribs 97 at intervals in the vehicle width direction. The plurality of ribs 97 project downward from the step upper surface 88 of the gate-side step 85, and extend in the thickness direction of the tailgate 15 (the longitudinal direction of the vehicle).
Thereby, the downward load F3 applied to the step upper surface 88 of the gate side step 85 (that is, the upper surface of the door lower edge portion 36) can be more efficiently supported by the plurality of ribs 97.

Concave portions 98 are formed in the plurality of ribs 97. The concave portion 98 is formed in a concave shape so as to accommodate the upper joint flange 83.
Here, when an occupant gets in or out of the vehicle or puts in or out of a baggage, the occupant's feet or baggage may hit the door lower edge 36 from the vehicle front-rear direction, and the door lower edge 36 may move (shift) in the vehicle front-back direction. Conceivable.
Therefore, the recesses 98 are formed in the plurality of ribs 97 so that the upper joint flange 83 is accommodated in the recesses 98. Thereby, the recessed part 98 is made to contact | abut to the upper joining flange 83, and it can suppress that the gate side step 85 moves to the vehicle front-back direction.

As shown in FIGS. 9 and 10, the molding member 105 extends continuously along the left vertical edge portion 101, the upper edge portion (not shown), and the right vertical edge portion 102 of the sub door opening 35. Further, the lower left end portion 105a of the molding member 105 is attached to the left end portion 83a by fitting the lower left end portion (end portion) 105a of the molding member 105 to the left end portion 83a of the upper joint flange 83 (see FIG. (See also 8).
Further, the lower right end portion 105b of the molding member 105 is attached to the right end portion 83b by fitting the lower right end portion (end portion) 105b of the molding member 105 to the right end portion 83b of the upper joint flange 83.

In this state, the lower left end portion 105a of the molding member 105 is covered from above by the left step 94. Further, the lower right end portion 105 b of the molding member 105 is covered from above by the right side step 95.
Thereby, the left lower end part 105a and the right lower end part 105b of the molding member 105 can be prevented from being exposed to the outside, and the appearance of the vehicle can be improved.

  Furthermore, the lower left end portion 105 a of the molding member 105 extends to the left corner portion 94, and the lower right end portion 105 b of the molding member 105 extends to the right corner portion 95. Therefore, the molding member 105 is not attached to the central step 93 (that is, the door lower edge portion 36) between the left corner portion 94 and the right corner portion 95.

  Thereby, the upper surface 88 of the door lower edge 36 can be lowered downward by the thickness of the molding member 105. In this way, the height of the upper surface 88 of the door lower edge 36 can be determined without being affected by the molding member 105, so that the upper surface 88 of the door lower edge 36 is changed to the upper surface 62 of the rear lower edge 16. On the other hand, it can be made substantially flush.

As shown in FIGS. 11 and 12, a latch device 18 is provided at the rear portion 11 a of the vehicle 11, and a striker 19 is provided at the tailgate 15.
The latch device 18 is attached to the frame upper surface 47 a of the rear lower frame 47. Here, the rear lower frame 47 is a member having a closed cross section and high rigidity. By attaching the latch device 18 to the frame upper surface 47a of the rear lower frame 47 having high rigidity, the latch device 18 can be firmly supported by the rear lower frame 47, and so-called support rigidity of the latch device 18 can be increased.

Further, by attaching the latch device 18 to the frame upper surface 47 a of the rear lower frame 47, the striker 19 can be separated above the rear lower frame 47 when the striker 19 of the tailgate 15 is engaged with the latch device 18. .
Thereby, since the striker 19 does not interfere with the rear lower frame 47, the degree of freedom in determining the mounting position of the striker 19, that is, the latch device 18, can be increased.

A bracket 48 is provided above the latch device 18. That is, the latch device 18 is provided below the bracket 48. Thereby, when an occupant gets on and off from the rear opening 13 or when a luggage is taken in or out from the rear opening 13, the occupant or the luggage can be prevented from hitting the latch device 18.
Further, the latch device 18 is covered with a vehicle body side step 49 from above. By covering the latch device 18 with the vehicle body side step 49, the latch device 18 can be prevented from being exposed to the outside, and the appearance is improved.

As shown in FIGS. 13 and 14, a maintenance opening 68 is provided in the step front surface 61 of the vehicle body side step 49. The maintenance opening 68 is opened at a portion facing the latch device 18 in the vehicle front-rear direction.
An opening 57 is provided in the bracket front surface 54 of the bracket 48. The opening 57 is disposed so as to overlap the maintenance opening 68 in the vehicle front-rear direction, and is opened at a position facing the latch device 18 in the vehicle front-rear direction.
The maintenance opening 68 and the opening 57 are opened for maintenance and inspection of the latch device 18.

The maintenance opening 68 is closed with a cover 107. Specifically, the upper locking claw 108 of the cover 107 is locked to the upper edge 68 a of the maintenance opening 68, and the lower locking claw 109 of the cover 107 is locked to the lower edge 68 b of the maintenance opening 68.
As a result, the cover 107 is detachably attached to the maintenance opening 68, and the maintenance opening 68 is closed by the cover 107.

By providing the maintenance opening 68 and the opening 57, when it is difficult to ensure good operation of the latch device 18 due to a malfunction of the battery or the like, the cover 107 is removed from the maintenance opening 68 and the latch device 18 can be inspected. it can.
For example, when it is difficult to ensure good operation of the latch device 18 due to a battery failure or the like, the tail gate 15 can be mechanically opened by manually operating the latch device 18 from the maintenance opening 68 or the opening 57. .

Here, in FIGS. 13 and 14, an example in which the cover 107 is detachably attached to the maintenance opening 68 of the resin vehicle body side step 49 has been described. However, the present invention is not limited thereto, and the cover 107 is attached to the metal bracket 48. It is also possible to attach it detachably.
In this case, by attaching the cover 107 to the highly rigid bracket 48, the cover 107 can be firmly supported, and so-called attachment rigidity of the cover 107 can be increased.

11 and 12, the latch device 18 is provided in front of the vehicle from the frame rear end portion 47 b of the rear lower frame 47. Further, a frame rear end 47 b of the rear lower frame 47 is provided in front of the vehicle from the lower portion 15 a of the tailgate 15.
Therefore, when the tailgate 15 is deformed to the vehicle front side by the impact load F <b> 1, the deformed tailgate 15 comes into contact with the frame rear end portion 47 b of the rear lower frame 47. As a result, the deformed tailgate 15 can be prevented from entering the latch device 18, and the deformed tailgate 15 can be prevented from interfering with the latch device 18.

  Further, the lower portion 40c of the sub door 40 is provided at a position where it overlaps (wraps) with the latch device 18 when viewed from the rear of the vehicle. Therefore, compared with the case where the collision load is absorbed only by the tailgate 15, the impact load F1 can be absorbed by both the sub door 40 and the tailgate 15. Thereby, it can suppress more reliably that the tailgate 15 contact | abuts to the latch apparatus 18. FIG.

  Further, the lower portion 40c of the sub door 40 is superimposed on the frame rear end portion 47b of the rear lower frame 47 from the rear of the vehicle. Therefore, when the sub door 40 is deformed to the front side of the vehicle by the impact load F1, the deformed sub door 40 can be prevented from entering the latch device 18 side by the frame rear end portion 47b of the rear lower frame 47. Thereby, it is possible to prevent the deformed sub door 40 from interfering with the latch device 18.

As shown in FIG. 15, the latch device 18 is provided with a striker insertion hole 111 into which the striker 19 (see FIG. 10) is inserted, and a pair of attachment pieces 112 are provided on both sides of the striker insertion hole 111 in the vehicle width direction. Yes.
The pair of attachment pieces 112 are fastened to the frame upper surface 47a of the rear lower frame 47 with a plurality of bolts 114 and nuts 115 (see FIG. 12).

As described above, both sides in the vehicle width direction of the striker insertion hole 111 of the latch device 18 (that is, the pair of attachment pieces 112) are fastened to the frame upper surface 47a. Therefore, when the striker 19 (see FIG. 10) is inserted into the striker insertion hole 111 and a load F4 is applied from the striker 19 to the latch device 18, the load F4 is approximately equalized by the bolts 114 and nuts 115 on both sides in the vehicle width direction. Can support you.
Thereby, it can prevent that the latch apparatus 18 inclines with the load F4 applied to the latch apparatus 18 from the striker 19. FIG. Thus, by preventing the tilt of the latch device 18, the striker 19 can be reliably engaged with the latch 113 of the latch device 18.

  Returning to FIG. 4, the housing recess 28 is provided in front of the rear lower edge portion 16 and the seat 24 is provided in front of the housing recess 28. The seat 24 includes a seat cushion 25 and a seat back 26. The seat cushion 25 is slidably provided on the floor in the vehicle front-rear direction. The seat back 26 is provided with a lower portion 26a at a rear portion 25a of the seat cushion 25 so as to be swingable in the vehicle front-rear direction.

The seat back 26 is stacked on the seat cushion 25 by tilting the seat back 26 forward and folding it. When the seat is folded, the back surface (upper surface of the seat 24) 26b of the seat back 26 is arranged substantially horizontally. In this state, the seat 24 is accommodated in a state in which the seat 24 is folded in the accommodation recess 28 by sliding the seat 24 backward in the vehicle.
When the folded sheet 24 is accommodated in the accommodating recess 28, the back surface 26 b of the seat back 26 is changed to the upper surface of the rear lower edge portion 16 (that is, the upper surface 62 before the step) and the upper surface of the door lower edge portion 36 (that is, the upper surface). It is disposed substantially flush with the step upper surface 88).

Accordingly, the back surface 26 b of the seat back 26, the upper surface 62 of the rear lower edge portion 16, and the upper surface 88 of the door lower edge portion 36 can be made continuous (ie, flat).
Thereby, the sub door 40 can be opened, and a load can be smoothly taken in and out from the sub door opening 35. In particular, when an occupant smoothly gets in and out of the sub door opening 35, the passenger can get in and out without getting caught in a step.

  Further, the rear end portion 24 a of the folded seat 24 (specifically, the rear portion 25 a of the seat cushion 25 and the lower portion 26 a of the seat back 26) is covered with the rear lower edge portion 16 in a state where the tailgate 15 is opened. . Thereby, it is possible to prevent the occupant and the luggage from hitting the rear end 24 a of the seat 24 when the occupant gets in and out of the rear opening 13 and when the luggage is taken in and out.

The vehicle body structure with a tailgate according to the present invention is not limited to the above-described embodiment, and can be changed or improved as appropriate.
For example, in the above-described embodiment, an example in which the sub door opening 35 is used for loading / unloading of luggage and getting on / off of a passenger in a state where the sub door 40 is opened and the sub door opening 35 is opened is not limited thereto. The sub door opening 35 may be configured not to be used for passengers getting on and off.

  In addition, the vehicle body structure, vehicle, rear opening, tail gate, rear lower edge, latch device, striker, sub door opening, sub door, rear lower frame, bracket, vehicle body side step, rear inner panel, rear outer panel shown in the above embodiment The shapes and configurations of the maintenance opening and the striker insertion hole are not limited to those illustrated, and can be changed as appropriate.

  The vehicle body structure of the present invention includes a tailgate that opens and closes the rear opening of the vehicle, and is suitable for application to an automobile including a latch device and a striker that hold the tailgate in a closed position.

10 Body structure (body structure with tailgate)
DESCRIPTION OF SYMBOLS 11 Vehicle 11a Vehicle rear part 13 Rear part opening 15 Tailgate 16 Rear lower edge part (lower edge part of rear part opening)
18 Latching device 19 Strike 35 Sub door opening 40 Sub door 47 Rear lower frame 47a Frame upper surface (upper surface of rear lower frame)
47b Rear end of frame (rear end of rear lower frame)
48 Bracket 49 Car body side step (Step garnish)
51 Rear inner panel (inner panel)
51b Rear flange of rear inner panel (flange)
52 Rear outer panel (outer panel)
52b Rear flange rear flange (flange)
53 Rear joint flange (joint flange)
61 Step front (front of the vehicle side step)
68 Maintenance opening 111 Striker insertion hole

Claims (7)

A rear opening provided in a rear portion of the vehicle, a tailgate that opens and closes the rear opening, a striker provided in the tailgate, and a latch device provided in the vehicle and engaged with the striker. Prepared,
A rear lower frame having a closed cross-sectional shape that forms a lower edge of the rear opening and extends continuously in the vehicle width direction at the rear of the vehicle;
A rear end portion of the rear lower frame is provided in front of the tailgate in the vehicle, and overlaps the tailgate as viewed from the rear of the vehicle;
The latch device is provided in front of the vehicle from the rear end of the rear lower frame ,
The latch device is attached to the upper surface of the rear lower frame,
A separate bracket is attached to the rear lower frame,
A vehicle body structure with a tailgate, wherein the bracket is provided above the latch device . A step garnish covering the latch device;
Step garnish, vehicle body structure with a tailgate according to claim 1, wherein the covering the bracket. A maintenance opening for maintaining and inspecting the latch device is provided on the front surface of the step garnish,
The vehicle body structure with a tailgate according to claim 2 , wherein the maintenance opening faces the latch device in a vehicle front-rear direction. The tailgate is
A sub-door opening communicating with the rear opening;
A sub door for opening and closing the sub door opening,
The sub-door is
The vehicle body structure with a tailgate according to any one of claims 1 to 3 , wherein the vehicle body structure is provided at a position overlapping the latch device when viewed from the rear of the vehicle. 5. The vehicle body structure with a tailgate according to claim 4 , wherein the sub door is overlapped with a rear end portion of the rear lower frame from the rear of the vehicle. The rear lower frame is formed in a closed cross-section by joining the flanges of the outer panel and the inner panel,
Wherein the rear end of the rear lower frames, tailgate of any one of claims 1 to 5 in which the junction flanges of the flange of the flange and the inner panel of the outer panel is characterized in that the overhang in the longitudinal direction of the vehicle With body structure. The latch device includes:
Provided with a striker insertion hole into which the striker is inserted;
The vehicle body structure with a tailgate according to any one of claims 1 to 6 , wherein both sides of the striker insertion hole in the vehicle width direction are fastened to the rear lower frame.

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