JP4534110B2 - Seat belt device mounting structure for rear seat - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a mounting structure for a seat belt device for a rear seat, and particularly to a mounting structure for a three-point seat belt device for a center seat of a three-seat rear seat in a vehicle having a rear gate such as a wagon.
[0002]
[Prior art]
In recent years, in order to improve the safety for vehicle occupants, in a three-seat rear seat, a vehicle equipped with a three-point seat belt device not only on the right and left sides but also on the central seat has been manufactured.
[0003]
FIG. 4 shows a rear seat 1 of such a vehicle. The rear seat 1 is for a three-seater with a right seat 2, a left seat 3, and a center seat 4. The right and left seats 2 and 3 are provided with well-known three-point seat belt devices 5 and 6, respectively, and the seat belt retractors 7 and 8 of the seat belt devices 5 and 6 are respectively connected to the seats 2 and 2, respectively. 3 horizontal center pillars (not shown). The seat belt device 9 for the central seat 4 includes a first seat belt 11 having one end fixed to an underbody (not shown) below the rear seat 1 and a tongue plate 10 at the other end. A second clasp 12 movably provided along the first seat belt 11 and a first buckle 13 having one end fixed to the underbody and engageable with the thru 12 at the other end. The seat belt 14 includes a seat belt 14 and a third seat belt 17 having a second buckle 15 to which the tongue plate 10 can be engaged at one end and being accommodated in the seat belt retractor 16 at the other end. It is designed to be attached to the roof portion (not shown) of the vehicle.
[0004]
As conventional examples of such a three-seat rear seat three-point seat belt device mounting structure for a center seat, there are those disclosed in Japanese Patent Laid-Open Nos. 2000-1156 and 11-20611.
[0005]
Japanese Patent Laid-Open No. 2000-1156 discloses a side rail 19 provided in the longitudinal direction of the vehicle body along the side edge of the roof 18 and a rear edge of the roof 18 as shown in FIG. A structure is disclosed in which a bracket 21 is installed on a rear rail 20 provided in the vehicle width direction, and the seat belt retractor 16 is attached to the bracket 21.
[0006]
In Japanese Patent Application Laid-Open No. 11-20611, as shown in FIGS. 6 and 7, the seat belt retractor 16 is attached to the rear rail 22, and the attachment portion is reinforced by the reinforcing member 23. In order to prevent deformation, there is disclosed a mounting structure in which a hinge reinforcing member 24 is extended forward, and the extended portion 25 is bent into a mountain shape so as not to interfere with the mounting nut 26 of the seat belt retractor 16. Has been.
[0007]
[Problems to be solved by the invention]
However, in the mounting structure of the seatbelt device for the rear seat disclosed in the above-mentioned Japanese Patent Laid-Open No. 2000-1156, the bracket 21 and the bolt 27 for fixing the bracket 21 are required, and the number of parts increases. Since it is necessary to reinforce the portion for fixing the bracket 21, this is a cause of cost increase.
[0008]
On the other hand, in the mounting structure of the seatbelt device for the rear seat disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 11-20611, the reinforcing member 23 is necessary to reinforce the mounting portion of the seatbelt retractor 16, and the number of parts is reduced. In addition, it is necessary to extend the hinge reinforcing member 24 forward and to bend the extended portion 25, which takes time for manufacturing, which causes an increase in cost.
[0009]
The present invention has been made to solve the above-described problems, and provides a seatbelt device mounting structure for a rear seat that can reduce the number of parts, reduce costs, and ensure a predetermined strength. Is.
[0010]
[Means for Solving the Problems]
The present invention is a mounting structure for a seat belt device for a rear seat of a vehicle having a rear gate, and includes a rear rail provided in a vehicle width direction along a rear edge portion of a roof, and a vehicle body front-rear direction along a side edge portion of the roof. A side rail provided in a direction, a rear pillar provided in a vertical direction of the vehicle body along a side portion of the rear gate, a hinge reinforcing member provided at an end portion of the rear rail and provided with a hinge of the rear gate, A roof corner reinforcing member extending from the rear pillar to the side rail and extending to overlap with the hinge reinforcing member, and a seat belt retractor at the overlapping portion of the roof corner reinforcing member and the hinge reinforcing member Can be attached.
[0011]
Further, a detent portion is provided in the vicinity of the seat belt retractor mounting portion, and the rotation of the seat belt retractor is regulated by the detent portion so that the seat belt retractor can be held in a required mounting posture. Yes.
[0012]
With such a configuration, it is not necessary to newly add a member for mounting the seat belt retractor or to perform complicated processing on the member, so that the manufacturing becomes easy and the manufacturing cost can be reduced.
[0013]
In addition, since the seat belt retractor is attached to the overlap portion of the roof corner reinforcing member and the hinge reinforcing member, the strength of the seat belt retractor attaching portion can be easily increased.
[0014]
Furthermore, when a detent portion is provided in the vicinity of the seat belt retractor mounting position, the rotation of the seat belt retractor can be restricted and the seat belt retractor can be held in a required mounting posture. It becomes.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0016]
1 to 3 show a case where the mounting structure for a seat belt device for a rear seat according to an embodiment of the present invention is applied to a rear left corner portion 32 of a roof 31 of a vehicle body.
[0017]
A rear rail 33 provided in the vehicle width direction along the rear edge portion of the roof 31 and a vehicle body longitudinal direction along the side edge portion of the roof 31 are provided at the rear left corner portion 32 of the roof 31. Side rails 34 and rear pillars 36 provided in the vertical direction of the vehicle body along the left side of the rear gate 35 are provided radially.
[0018]
The rear rail 33 is formed by joining a rear header upper panel 37 and a rear header lower panel 38 at ends, and a hinge reinforcing member 39 is provided at the end of the rear rail 33. As can be clearly seen from FIG. 2, the hinge reinforcing member 39 has a left end 40 sandwiched between each end of the rear header upper panel 37 and the rear header lower panel 38, and a right end 41 is the rear header upper. The central portion 42 is formed so as to contact the upper surface of the rear header lower panel 38. A hinge fixing portion 43 for attaching a hinge (not shown) of the rear gate 35 is formed on the left rear edge portion of the hinge reinforcing member 39.
[0019]
Further, a roof corner reinforcing member 44 is provided in the rear left corner portion 32, and the roof corner reinforcing member 44 extends from the rear pillar 36 to the side rail 34. Further, the roof corner reinforcing member 44 extends along the lower surface of the rear header lower panel 38 and is formed so as to overlap the central portion 42 of the hinge reinforcing member 39.
[0020]
A mounting hole 46 is formed in a front portion of the overlapping portion 45 of the roof corner reinforcing member 44 and the hinge reinforcing member 39, and a bracket 47 is attached to the lower surface of the roof corner reinforcing member 44 so that the mounting is performed. A bolt 48 is inserted into the hole 46 and a nut 49 is tightened, so that the seat belt retractor 50 is attached in a state of extending forward. Further, in the vicinity of the right side of the mounting hole 46, a detent portion 51 protrudes downward. Accordingly, in FIG. 1, the rotation of the bracket 47 in the right direction is restricted by the anti-rotation portion 51 and the rotation in the left direction is restricted by the side rail 34. Held in posture.
[0021]
A top sealing 52 is provided below the seat belt retractor 50 and the bracket 47, and a slit hole 54 is opened in the top sealing 52 so that the seat belt 53 can enter and exit the seat belt retractor 50. ing.
[0022]
The seatbelt device mounting structure for a rear seat according to the embodiment of the present invention may be provided at the rear right corner portion instead of the rear left corner portion 32 of the roof 31 of the vehicle body described above.
[0023]
In the above embodiment, the seat belt device for the center seat of the rear seat has been described, but it goes without saying that the present invention can also be applied to the seat belt device for the right or left seat of the rear seat.
[0024]
【The invention's effect】
As described above, according to the present invention, the roof corner reinforcing member is extended, and the seat belt retractor is attached to the overlapping portion of the extended portion and the hinge reinforcing member, so that complicated processing of the member is unnecessary. There is no need to add a new member for mounting the seat belt retractor. Therefore, manufacture becomes easy and it becomes possible to reduce manufacturing cost. Furthermore, since the seat belt retractor is attached to the overlapping portion of the roof corner reinforcing member and the hinge reinforcing member, the strength of the seat belt retractor attaching portion can be easily increased.
[0025]
In addition, when a detent portion is provided in the vicinity of the seat belt retractor mounting position, rotation of the seat belt retractor can be restricted, so that the seat belt retractor can be held in a required mounting posture. It becomes possible.
[Brief description of the drawings]
FIG. 1 is a plan view showing an embodiment of the present invention.
FIG. 2 is a cross-sectional view showing an embodiment of the present invention.
FIG. 3 is a perspective view showing an embodiment of the present invention.
FIG. 4 is a perspective view showing a seat belt device for a rear seat.
FIG. 5 is a perspective view showing a conventional example.
FIG. 6 is a cross-sectional view showing another conventional example.
FIG. 7 is a cross-sectional view showing another conventional example.
[Explanation of symbols]
31 Roof 33 Rear rail 34 Side rail 35 Rear gate 36 Rear pillar 39 Hinge reinforcing member 44 Roof corner reinforcing member 45 Overlapping portion 50 Seat belt retractor 51 Non-rotating portion

Claims (2)

A structure for mounting a seat belt device for a rear seat of a vehicle having a rear gate,
A rear rail provided in the vehicle width direction along the rear edge of the roof;
A side rail provided in the longitudinal direction of the vehicle body along the side edge of the roof;
A rear pillar provided in a vertical direction of the vehicle body along a side portion of the rear gate;
A hinge reinforcing member provided at an end of the rear rail and provided with a hinge of the rear gate;
A roof corner reinforcing member extending from the rear pillar to the side rail and extending to overlap the hinge reinforcing member;
And a seatbelt retractor mounting structure for a rear seat, wherein a seatbelt retractor can be attached to the overlap portion of the roof corner reinforcing member and the hinge reinforcing member. A detent portion protrudes in the vicinity of the mounting position of the seat belt retractor, and the rotation of the seat belt retractor is regulated by the detent portion so that the seat belt retractor can be held in a required mounting posture. Item 2. A seatbelt mounting structure for a rear seat according to Item 1.

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