JP2021024478A - Reinforcement structure for quarter inner panel of vehicle - Google Patents

Abstract

To improve the rigidity of a quarter inner panel supporting rear quarter glass.SOLUTION: Inside reinforcement members 20A, 20B extending forward and backward directions along a lower edge of rear quarter glass 51 are provided inside a quarter inner panel 10. A front joint part 22 joined to an edge of a rear door opening 45 is provided in a front part of the inside reinforcement member 20A. Respective rear parts of the inside reinforcement members 20A, 20B are provided with rear-side joint ports 23a, 23b joined to edges of a back door opening 41. An outside reinforcement member 30 extending in a vertical direction is provided outside the quarter inner panel 10. An intermediate part of the outside reinforcement member 30 is disposed overlapping the inside reinforcement members 20A, 20B.SELECTED DRAWING: Figure 7

Description

The present invention relates to a vehicle body lower structure.

For example, as disclosed in Patent Document 1, there is known a structure in which a quarter inner panel is arranged inside a side body outer panel located at a rear portion of a vehicle body side portion. Reinforcements extending in the vertical direction of the vehicle are provided at the front and rear of the quarter inner panel, thereby ensuring the rigidity of the quarter inner panel.

On the other hand, a seatbelt retractor for the rear seat is provided at the rear part of the vehicle body side. In this example, a retractor reinforcement is provided below the quarter inner panel so as to bridge the front reinforcement and the rear reinforcement. With such a configuration, the rigidity of the quarter inner panel and the support rigidity of the seatbelt retractor are ensured.

Japanese Unexamined Patent Publication No. 2012-136201

In a structure like the above example, if the rear quarter glass is placed on the upper side of the seatbelt retractor due to design restrictions, it is necessary to place the quarter inner panel on the lower side of the rear quarter glass. is there. In this case, the quarter inner panel needs to support the rear quarter glass.

When arranging the quarter inner panel in this way, it is necessary to increase the panel area, and it is also necessary to support the seatbelt retractor with the quarter inner panel. Therefore, there is room for improvement in the structure as in the above example in order to secure the rigidity of the quarter inner panel.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a reinforcing structure for a quarter inner panel capable of improving the rigidity of the quarter inner panel supporting the rear quarter glass. is there.

The reinforcing structure of the quarter inner panel for a vehicle according to the present invention for achieving the above object supports the rear quarter glass located on the rear side of the vehicle at the rear door opening on the side of the vehicle body, and the vehicle of the quarter inner panel. Inside in the width direction, an inner reinforcing member arranged on the lower side of the rear quarter glass and extending in the front-rear direction of the vehicle is provided, and the front portion of the inner reinforcing member is joined to the rear edge portion of the rear door opening. The front joint portion to be joined is provided, and the rear portion of the inner reinforcing member is provided with a rear joint portion to be joined to the side edge portion of the back door opening located at the rear portion of the vehicle body, and is provided with the quarter inner panel. An outer reinforcing member extending in the vehicle vertical direction is provided on the outer side in the vehicle width direction, and an intermediate portion of the outer reinforcing member in the vehicle vertical direction is arranged so as to overlap the inner reinforcing member in the vehicle width direction.

According to the present invention, it is possible to improve the rigidity of the quarter inner panel that supports the rear quarter glass.

It is a perspective view which shows the vehicle body which has the reinforcement structure of the quarter panel for a vehicle which concerns on this invention. It is a side view which looked at the quarter inner panel of FIG. 1 from the inside in the vehicle width direction. It is a side view which shows the state which attached the seat belt retractor and the like to the quarter inner panel of FIG. It is a perspective view which shows the retractor fixing part of FIG. 3 and the periphery thereof enlarged. It is a perspective view which shows the AA cross section of FIG. FIG. 2 is a sectional view taken along the line AA of FIG. The inner reinforcing member and the like are virtually shown in the outer side view of the quarter inner panel and the outer reinforcing member and the like in FIG. 2 as viewed from the outside in the vehicle width direction. It is a partial perspective view which looked at the upper part of the outer reinforcing member of FIG.

Hereinafter, an embodiment of the reinforcing structure of the vehicle quarter inner panel 10 according to the present invention will be described with reference to the drawings (FIGS. 1 to 8).

In the figure, the arrow Fr direction indicates the front in the vehicle front-rear direction. The "front (front end) and rear (rear end)" in the description of the embodiment correspond to the front and rear parts in the front-rear direction of the vehicle. Further, the arrows R and L indicate the right side and the left side in the vehicle width direction, respectively, and the "left and right" in the present embodiment correspond to the "left side" and the "right side" when the occupant faces the front of the vehicle. There is.

As shown in FIG. 1, the reinforcing structure of the vehicle quarter inner panel 10 of the present embodiment is a structure for reinforcing the quarter inner panel 10 located at the rear portion on the side portion of the vehicle body. The quarter inner panel 10 of the present embodiment supports the rear quarter glass 51. Further, the reinforcing structure has inner reinforcing members 20A and 20B and an outer reinforcing member 30. Although the right side portion of the vehicle body is shown in FIGS. 1 to 8, the same structure may be provided on both the left and right side portions of the vehicle body.

As shown in FIGS. 1 to 3, a rear door opening 45 is provided at the rear portion of the vehicle body side portion, and a back door opening 41 is provided at the rear portion of the vehicle body portion. The rear quarter glass 51 has a substantially rectangular shape extending in the vertical direction of the vehicle, and is arranged on the rear side of the rear door opening 45 of the vehicle.

As shown in FIG. 2, the quarter inner panel 10 is a panel arranged at the rear of the rear door opening 45 on the side of the vehicle body, and is arranged inside the side body outer panel (not shown) in the vehicle width direction. Further, the quarter inner panel 10 extends in the vertical direction of the vehicle as a whole, and the front end of the quarter inner panel 10 is arranged at the rear end of the rear door opening 45.

Further, the lower end of the quarter inner panel 10 is joined to the wheel house outer panel 47. The wheel house outer panel 47 is a panel that covers the rear wheels (not shown) from above the vehicle, bulges inward in the vehicle width direction with respect to the quarter inner panel 10, extends downward to the vehicle, and is joined to a floor panel or the like.

Further, as shown in FIG. 2, the upper portion of the rear portion of the quarter inner panel 10 extends in the vertical direction of the vehicle along the front end of the rear quarter glass 51, and at the lower end of the rear quarter glass 51, the front side of the rear quarter glass 51. Extends to the rear of the vehicle from the lower end of the rear toward the side of the back door opening 41. The lower portion of the rear portion of the quarter inner panel 10 extends in the vertical direction of the vehicle along the side portion of the back door opening 41.

Next, the inner reinforcing members 20A and 20B will be described. The inner reinforcing members 20A and 20B are plate-shaped members attached to the vehicle interior side of the quarter inner panel 10, and extend in the vehicle front-rear direction as a whole. The inner reinforcing members 20A and 20B have an upper inner reinforcing member 20A and a lower inner reinforcing member 20B. The upper inner reinforcing member 20A and the lower inner reinforcing member 20B are arranged side by side in the vertical direction of the vehicle.

As shown in FIG. 2, the vehicle front-rear direction intermediate portion in the lower portion of the upper inner reinforcing member 20A is provided with an upper recess 25a recessed above the vehicle, and the vehicle front-rear direction intermediate portion in the upper portion of the lower inner reinforcing member 20B is provided with a vehicle. A lower recess 25b that is recessed downward is provided. The front and rear portions of the upper recess 25a and the front and rear portions of the lower recess 25b are joined and integrated to reinforce the quarter inner panel 10.

In this example, as shown in FIGS. 3 to 5, a front connecting flange 27 extending in the vehicle front-rear direction is provided on the vehicle front side of the lower recess 25b, and a front connecting flange 27 extending in the vehicle front-rear direction is provided on the vehicle rear side of the lower recess 25b in the vehicle front-rear direction. An extending rear connecting flange 28 is provided. The front connecting flange 27 is joined to the flat portion on the vehicle front side of the upper concave portion 25a of the upper inner reinforcing member 20A, and the rear connecting flange 28 is joined to the flat portion on the vehicle rear side of the upper concave portion 25a of the upper inner reinforcing member 20A. It is joined.

Further, when the upper inner reinforcing member 20A and the lower inner reinforcing member 20B are joined and integrated, one opening is formed by the upper recess 25a and the lower recess 25b. As shown in FIGS. 5 and 6, the quarter inner panel 10 corresponding to the opening is provided with a bulging portion 11 that bulges outward in the vehicle width direction. As shown in FIGS. 3 and 4, the seatbelt retractor 53 is housed in the bulging portion 11.

Here, the upper inner reinforcing member 20A and the lower inner reinforcing member 20B will be described individually. The upper inner reinforcing member 20A is attached to the lower part of the opening 15 to which the rear quarter glass 51 is attached, and extends in the front-rear direction of the vehicle. The upper inner reinforcing member 20A is provided with an upper joint portion 21, a front joint portion 22, and a rear joint portion 23a. The upper joint portion 21 is provided at the upper end of the main body of the upper inner reinforcing member 20A and extends in the front-rear direction of the vehicle. The upper joint portion 21 is joined to the lower part of the opening 15 to which the rear quarter glass 51 is attached. The front portion of the upper joint portion 21 is arranged at the front portion in the lower portion of the opening portion 15, and the rear portion of the upper joint portion 21 is arranged at the side portion of the back door opening 41.

The front joint portion 22 is provided at the front portion of the main body of the upper inner reinforcing member 20A, and in this example, the front joint portion 22 is arranged at a distance on the front side of the vehicle from the front end of the upper joint portion 21. The front joint 22 is joined to the trailing edge of the rear door opening 45 of the quarter inner panel 10. Further, the front joint portion 22 corresponds to the shape of the jointed portion of the inner portion of the quarter inner panel 10 in the vehicle width direction, and extends in the vehicle vertical direction as a whole. As shown in FIG. 4, the upper portion and the lower portion of the front joint portion 22 project outward in the vehicle width direction from the vehicle vertical intermediate portion, and are joined to the inner side surface of the quarter inner panel 10 in the vehicle width direction. Further, the lower end of the front joint portion 22 is joined to the upper portion on the front side of the lower concave portion 25b of the lower inner reinforcing member 20B.

The rear joint portion 23a of the upper inner reinforcing member 20A is arranged on the rear side of the upper joint portion 21, and projects inward in the vehicle width direction from the rear end of the main body of the upper inner reinforcing member 20A. The rear joint portion 23a is joined to the front surface of the side edge portion of the back door opening 41. The rear joint portion 23b is also provided at the rear end of the lower inner reinforcing member 20B. Further, the lower end of the main body of the upper inner reinforcing member 20A located between the rear joint portion 23a and the upper concave portion 25a is joined to the rear connecting flange 28 of the lower inner reinforcing member 20B as described above.

Subsequently, the lower inner reinforcing member 20B will be described. The lower inner reinforcing member 20B is arranged on the lower side of the vehicle of the upper inner reinforcing member 20A, and is joined to the upper inner reinforcing member 20A by connecting flanges 27, 28 and the like. The lower inner reinforcing member 20B has a rear joint portion 23b and a lower joint portion 24. The rear joint portion 23b of the lower inner reinforcing member 20B is arranged on the rear side of the vehicle in the lower concave portion 25b, and projects inward from the rear end of the main body of the lower inner reinforcing member 20B in the vehicle width direction. The rear joint portion 23b is joined to the front surface of the side portion of the back door opening 41. Further, the rear joint portion 23b of the lower inner reinforcing member 20B is arranged side by side with respect to the rear joint portion 23a of the upper inner reinforcing member 20A on the lower side of the vehicle.

The lower joint portion 24 is provided in the lower portion of the lower recess 25b on the front side of the vehicle, and extends so as to be inclined upward toward the front of the vehicle. The front end of the lower joint portion 24 is arranged in the vehicle front-rear direction so as to correspond to the front joint portion 22 described above. The lower joint portion 24 is arranged on the front side of the vehicle and on the lower side of the vehicle with respect to the opening 15 of the rear quarter glass 51.

Next, the outer reinforcing member 30 will be described. As shown in FIG. 7, the outer reinforcing member 30 is a member extending in the vertical direction of the vehicle and is attached to the outer side of the quarter inner panel 10 in the vehicle width direction (outside the vehicle). The intermediate portion of the outer reinforcing member 30 in the vehicle vertical direction is arranged so as to overlap the inner reinforcing members 20A and 20B in the vehicle width direction. Further, it has a joint portion 31 to which the inner reinforcing member 20B, the quarter inner panel 10 and the intermediate portion of the outer reinforcing member 30 are joined.

With this configuration, the quarter inner panel 10 can be sandwiched between the inner reinforcing members 20A and 20B and the outer reinforcing member 30, and as a result, the vibration of the quarter inner panel 10 can be suppressed.

Further, in the present embodiment, the upper portion of the outer reinforcing member 30 is joined to the lower portion of the rear quarter glass 51. Specifically, the upper portion is joined to the front portion in the lower portion of the opening 15 to which the rear quarter glass 51 is attached, and is arranged so as to overlap the upper joint portion 21 of the upper inner reinforcing member 20A in the vehicle width direction. ..

Further, the intermediate portion of the outer reinforcing member 30 in the vehicle vertical direction overlaps the lower portion of the front joint portion 22 of the lower inner reinforcing member 20B and the front portion of the lower joint portion 24 in the vehicle width direction, and is a quarter inner. It is joined to the outer surface of the panel 10 in the vehicle width direction. Further, the lower portion of the outer reinforcing member 30 is joined to the upper portion of the wheel house outer panel 47 located on the lower side of the vehicle of the quarter inner panel 10.

That is, the outer reinforcing member 30 connects the lower edge portion of the rear quarter glass 51 and the upper portion of the wheel house outer panel 47. By arranging the outer reinforcing member 30 in this way, the rigidity is improved in the vehicle width direction and the vehicle vertical direction.

Further, although the description by illustration is omitted, the outer reinforcing member 30 is also joined to the side body outer panel (not shown). Further, a door striker 55 is attached to the rear side of the outer reinforcing member 30 of the vehicle. The door striker 55 extends in the front-rear direction of the vehicle, and the front portion thereof is joined to the outer surface of the outer reinforcing member 30 on the rear side of the vehicle in the vehicle width direction. The front portion is arranged so as to overlap the rear portion of the lower joint portion 24 of the lower inner reinforcing member 20B in the vehicle width direction.

The rear portion of the door striker 55 is joined to the side portion of the back door opening 41, and is arranged at intervals on the vehicle lower side of the rear side joint portions 23a and 23b described above. The middle portion of the door striker 55 in the vehicle front-rear direction extends in the vehicle front-rear direction in a state of protruding outward in the vehicle width direction with respect to the front portion and the rear portion. Since the rigidity of the bulging portion 11 of the quarter inner panel 10 is improved by the outer auxiliary [strong member 30 and the like, it is possible to join the door striker 55 on which a load acts when the door is opened and closed.

Further, as shown in FIG. 4, the lower inner reinforcing member 20B of the present embodiment has a retractor fixing portion 26b to which the seatbelt retractor 53 is fixed. The retractor fixing portion 26b is provided at the edge of the lower recess 25b of the lower inner reinforcing member 20B. The seatbelt tractor 53 is provided with a flange that projects downward from the edge of the lower recess 25b, and the flange is bolted to the retractor fixing portion 26b. By providing the retractor fixing portion 26b in this way, even when a load is input to the seatbelt retractor 53, the load is distributed to the back door opening 41 and the rear door opening 45, for example, via the lower inner reinforcing member 20B. be able to.

As shown in FIG. 4, a retractor fixing portion 26a may be provided at the edge of the upper recess 25a of the upper inner reinforcing member 20A. In this example, the seatbelt tractor 53 is provided with a flange that projects upward from the edge of the upper recess 25a, and the flange is bolted to the retractor fixing portion 26a of the upper inner reinforcing member 20A.

Further, in the present embodiment, an intermediate portion of the outer reinforcing member 30 in the vertical direction of the vehicle is joined to the edge portion of the bulging portion 11 in which the seatbelt retractor 53 is housed. As a result, the rigidity of the bulging portion 11 is ensured (FIG. 8).

The seatbelt suspension portion 42 for suspending the seatbelt extending from the seatbelt retractor 53 is provided on the vehicle body side portion located on the rear side of the vehicle and on the upper side of the vehicle with respect to the seatbelt retractor 53. As shown in FIG. 3, the seatbelt suspension portion 42 of this example is provided on the side portion of the back door opening 41, and is arranged on the rear side of the vehicle and the upper side of the vehicle with respect to the seatbelt retractor 53. On the other hand, as shown in FIGS. 7 and 8, the outer reinforcing member 30 is positioned so as to overlap the inner reinforcing members 20A and 20B in the vehicle width direction, and the inclined surface 33 is inclined upward toward the vehicle rearward. It has. The inclined surface 33 is joined to the edge portion of the bulging portion 11.

The outer reinforcing member 30 including the inclined surface 33 extends substantially parallel to the direction in which the seatbelt extends, that is, in the direction from the seatbelt retractor 53 toward the seatbelt suspension portion 42. Thereby, the rigidity against the load along the inclined surface 33 can be improved.

Further, in the present embodiment, the rear joint portions 23a and 23b are arranged on the upper side of the vehicle with respect to the retractor fixing portion 26b of the lower inner reinforcing member 20B. With such an arrangement, when the retractor fixing portion 26b receives a load acting on the vehicle rear and above the vehicle, the load can be dispersed.

Further, in the present embodiment, the lower joint portion 24 of the lower inner reinforcing member 20B is joined to the quarter inner panel 10 on the front side of the vehicle and the lower side of the vehicle with respect to the retractor fixing portion 26b. By arranging the lower joint portion 24 in this way, when a load pulling from the rear of the vehicle toward the upper side of the vehicle is input to the retractor fixing portion 26b, the load can be dispersed.

The description of the present embodiment is an example for explaining the present invention, and does not limit the invention described in the claims. Further, each part configuration of the present invention is not limited to the above embodiment, and various modifications can be made within the technical scope described in the claims.

For example, in the present embodiment, the inner reinforcing members are composed of two members (upper inner reinforcing member 20A and lower inner reinforcing member 20B) arranged side by side, but the present invention is not limited to this. For example, it may be one member.

10 Quarter Inner Panel 11 Protrusion 15 Opening 20A Upper Inner Reinforcement Member 20B Lower Inner Reinforcement 21 Upper Joint 22 Front Joint 23a Upper Inner Reinforcement Rear Joint 23b Lower Inner Reinforcement Rear Joint 24 Lower joint 25a Upper concave 25b Lower concave 26a Retractor fixing part 26b of upper inner reinforcing member Retractor fixing part 27 of lower inner reinforcing member 27 Front connecting flange 28 Rear connecting flange 30 Outer reinforcing member 31 Joint 33 Inclined surface 41 Back Door opening 42 Seatbelt suspension 45 Rear door opening 47 Wheelhouse outer panel 51 Rear quota glass 53 Seatbelt retractor 55 Door striker

Claims (6)

In the reinforcement structure of the quarter inner panel for the vehicle that supports the rear quarter glass located on the rear side of the vehicle at the rear door opening on the side of the vehicle body.
Inside the quarter inner panel in the vehicle width direction, an inner reinforcing member arranged on the lower side of the rear quarter glass in the vehicle front-rear direction and extending in the vehicle front-rear direction is provided, and the rear door opening is provided in the front portion of the inner reinforcing member. A front joint portion to be joined to the rear edge portion is provided, and a rear joint portion to be joined to the side edge portion of the back door opening located at the rear portion of the vehicle body is provided at the rear portion of the inner reinforcing member. ,
An outer reinforcing member extending in the vehicle vertical direction is provided on the outer side of the quarter inner panel in the vehicle width direction, and an intermediate portion of the outer reinforcing member in the vehicle vertical direction is arranged so as to overlap the inner reinforcing member in the vehicle width direction. Reinforced structure of the quarter inner panel for vehicles, which is characterized by being. The upper portion of the outer reinforcing member is joined to the lower portion of the rear quarter glass, and the lower portion of the outer reinforcing member is joined to the wheel house outer panel located on the lower side of the vehicle of the quarter inner panel. , The reinforcing structure of the quarter inner panel for a vehicle according to claim 1. A seatbelt retractor is arranged inside the quarter inner panel in the vehicle width direction.
The reinforcing structure for a vehicle quarter inner panel according to claim 1 or 2, wherein the inner reinforcing member has a retractor fixing portion to which the seatbelt retractor is fixed. The seatbelt suspension portion for suspending the seatbelt extending from the seatbelt retractor is provided on the vehicle body side portion located on the rear side of the vehicle and on the upper side of the vehicle with respect to the seatbelt retractor.
The outer reinforcing member is arranged on the front side of the vehicle of the seatbelt retractor, and is provided with an inclined surface that inclines upward in the vehicle toward the rear of the vehicle at a position overlapping the inner reinforcing member in the vehicle width direction. The reinforcing structure of the vehicle quarter inner panel according to claim 3, which is characterized. The reinforcing structure for a vehicle quarter inner panel according to claim 3 or 4, wherein the rear joint portion is arranged on the upper side of the vehicle with respect to the retractor fixing portion. 3. The third to claim, wherein the inner reinforcing member located on the front side of the vehicle and the lower side of the vehicle with respect to the retractor fixing portion is provided with a lower joint portion to be joined to the quarter inner panel. The reinforcing structure for the vehicle quarter inner panel according to any one of claims 5.