Side structure of vehicle body

Abstract

To provide a vehicle body side part structure capable of enhancing yield strength of a B-pillar with respect to a side collision load.SOLUTION: An end edge 8 in an inner side of a vehicle width direction of a second plate part 73b extending in a direction intersecting with the longitudinal direction of a vehicle body of a B-pillar outer reinforcement upper 7 is formed in a waveform shape which repeats unevenness in the vehicle width direction over the vertical direction. Accordingly, when a side collision load in vehicle side collision is input in the B-pillar outer reinforcement upper 7, recessed curve parts 8A, 8B, which are recessed toward the outside in the vehicle width direction, are deformed in a direction in which the length of the recessed curve parts 8A, 8C is shortened (reduced). Therefore, breakage due to the side collision load is hardly generated in this portion so that rapid reduction in yield strength due to the breakage is suppressed. Thus, the yield strength of the B-pillar with respect to the side collision load can be enhanced.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a vehicle body side structure. In particular, the present invention relates to an improvement for improving the strength of a B-pillar against a side impact load during a side impact of a vehicle.

Background Art

[0002] As a general structure of a B-pillar (also called a center pillar) that connects a rocker and a roof side rail and partitions a front door opening and a rear door opening, there is a B-pillar inner located on the inner side in the vehicle width direction (inside the vehicle compartment), a B-pillar outer located on the outer side in the vehicle width direction, and a B-pillar outer reinforcement as a reinforcing member disposed inside a closed cross-section structure formed by joining the B-pillar inner and the B-pillar outer.

[0003] FIG. 6 is a perspective view showing the structure around the joint portion between a rocker a and a B-pillar outer reinforcement b at the lower end of a conventional general B-pillar. In FIG. 6, the arrow FR indicates the front side of the vehicle body, the arrow OUT indicates the outer side in the vehicle width direction, and the arrow UP indicates the upper side.

[0004] In what is shown in this FIG. 6, the B-pillar outer reinforcement b is composed of two members, an upper and a lower one, namely, a B-pillar outer reinforcement lower c joined to the rocker a, and a B-pillar outer reinforcement upper d joined to the outside of the B-pillar outer reinforcement lower c and extending upward and joined to a roof side rail (not shown). The lower part of this B-pillar outer reinforcement upper d is a flat plate portion e extending in a direction orthogonal to the vehicle width direction (extending in the vertical direction and the vehicle longitudinal direction), and this flat plate portion e is joined to the outer surface (the surface facing the outer side in the vehicle width direction) f of the B-pillar outer reinforcement lower c.

[0005] Generally, the position where the rear end of an impact beam (a member for receiving a side impact load during a vehicle side collision) provided inside the front side door is joined to the panel material of the front side door is a position overlapping the lower part of the B-pillar (a position overlapping the lower part of the B-pillar when viewed from the vehicle width direction in the closed state of the front side door). Therefore, during a vehicle side collision, the side impact load input to the impact beam is input near the flat plate portion e, which is the lower part of the B-pillar outer reinforcement upper d from the impact beam. And when the flat plate portion e deforms so as to bend inward in the vehicle width direction along with the input of this side impact load, the bearing strength (reaction force) of the B-pillar against the side impact load rapidly decreases, and there is a limit to reducing the deformation speed toward the vehicle interior.

[0006] In particular, in recent years, as the evaluation conditions of side impact evaluation tests tend to become stricter, the input from the impact beam (input from the moving barrier in the side impact evaluation test) increases, and a relatively large side impact load is input to the lower part of the B-pillar. Therefore, the demand for improving the bearing strength of the lower part of the B-pillar against the side impact load is increasing.

[0007] Patent Document 1 discloses that the lower part of the B-pillar outer reinforcement has a hat-shaped cross-sectional shape that opens inward in the vehicle width direction. According to this, the rigidity of the lower part of the B-pillar outer reinforcement becomes high, and it is possible to increase the bearing strength of the lower part of the B-pillar against the side impact load to a certain extent.

Prior Art Documents

Patent Documents

[0008]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0009] However, in the structure disclosed in Patent Document 1, when a side impact load is input, as the B-pillar outer reinforcement bends inward in the vehicle width direction, the edge on the inner side in the vehicle width direction of the B-pillar outer reinforcement (the edge on the inner side in the vehicle width direction of the vehicle width direction extending portion extending in a direction intersecting the vehicle longitudinal direction) deforms in a direction in which the line length extends (deforms under the action of a tensile load directed outward in the vertical direction), and there is a high possibility that breakage will occur at this edge. Even when such breakage occurs, the load-bearing capacity (reaction force) of the B-pillar against the side impact load will rapidly decrease. Therefore, there was room for improvement to sufficiently ensure the improvement of the load-bearing capacity of the B-pillar (especially the lower part of the B-pillar) against the side impact load.

[0010] The present invention has been made in view of such a point, and an object thereof is to provide a vehicle body side structure capable of improving the load-bearing capacity of the B-pillar against a side impact load.

Means for Solving the Problems

[0011] The solution means of the present invention for achieving the above object is premised on a vehicle body side structure including a B-pillar having a U-shaped cross-sectional shape that opens inward in the vehicle width direction. And this vehicle body side structure is B-pillar outer reinforcement upper and B-pillar outer reinforcement lower such that the edge on the inner side in the vehicle width direction of the vehicle width direction extending portion extending in a direction intersecting the vehicle longitudinal direction in An impact beam is provided inside the front side door, and the rear end of the impact beam is joined to the panel material of the front side door via a mounting bracket. The position of the mounting bracket is such that it overlaps the lower part of the B-pillar when viewed from the vehicle width direction in the closed state of the front side door, and the side impact load during a side impact of the vehicle is input from the impact beam through the mounting bracket to the lower part of the B-pillar outer reinforcement upper. The B-pillar outer reinforcement upper has a wavy shape that repeats unevenness in the vehicle width direction over the vertical direction The vehicle width direction extending portion is joined to the B-pillar outer reinforcement lower, and the and and is continuously arranged in the order of a first concave curved portion, a first convex curved portion, a second concave curved portion, and a second convex curved portion from above. The recess dimension of the first concave curved portion outward in the vehicle width direction is set larger than the recess dimension of the second concave curved portion outward in the vehicle width direction. is characterized in that.

[0012] Due to this specific matter, as the shape of the edge of the wavy B-pillar reinforcement member (the edge on the inner side in the vehicle width direction of the vehicle width direction extending portion that extends in a direction intersecting the vehicle longitudinal direction), there are alternately present a convex curved portion that is convex toward the inner side in the vehicle width direction and a concave curved portion that is concave toward the outer side in the vehicle width direction over the vertical direction. And when a side impact load is input to the B-pillar reinforcement member during a side impact of the vehicle, the deformation of the concave curved portion that is concave toward the outer side in the vehicle width direction is in the direction of shortening (contracting) the line length of the concave curved portion. For this reason, in this part, breakage due to the side impact load is less likely to occur, and a rapid decrease in the yield strength due to breakage is suppressed. Therefore, it is possible to improve the yield strength of the B-pillar against the side impact load.

Effect of the Invention

[0013] In the present invention, the edge on the inner side in the vehicle width direction of the vehicle width direction extending portion that extends in a direction intersecting the vehicle longitudinal direction in the B-pillar reinforcement member is formed in a wavy shape with unevenness in the vehicle width direction repeated over the vertical direction. For this reason, breakage of the edge due to the side impact load is less likely to occur, a rapid decrease in the yield strength due to breakage is suppressed, and it is possible to improve the yield strength of the B-pillar against the side impact load.

Brief Description of the Drawings

[0014]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Embodiments for Carrying Out the Invention

[0015] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In this embodiment, in a structure in which the B-pillar outer reinforcement includes a B-pillar outer reinforcement upper and a B-pillar outer reinforcement lower, the case where the present invention is applied to the lower part of the B-pillar outer reinforcement upper will be described. Note that the B-pillar outer reinforcement is not limited to a structure composed of two members, and may be composed of one member or three or more members.

[0016] -Schematic Configuration of Vehicle Body Side Portion- FIG. 1 is a side view showing the schematic configuration of the vehicle body side portion (around the left door opening) according to this embodiment. The arrow FR in FIG. 1 indicates the front side of the vehicle body, and the arrow UP indicates the upper side. Hereinafter, the configuration of the side portion on the left side of the vehicle body will be described, but the side portion on the right side of the vehicle body has the same configuration (a symmetric configuration).

[0017] As shown in FIG. 1, as the configuration of the vehicle body side portion, a B-pillar 1 is provided which stands upright so as to partition the front door opening FO and the rear door opening RO. This B-pillar 1 stands upright so as to form the trailing edge of the front door opening FO, and its lower end is joined to the rocker 2 and its upper end is joined to the roof side rail 3 respectively.

[0018] The rocker 2 is a vehicle body component having a closed cross-section structure extending in the vehicle body front-rear direction along the lower ends (left and right side ends of the floor) of the vehicle body side portion. The roof side rail 3 is a vehicle body component having a closed cross-section structure extending in the vehicle body front-rear direction along the upper ends (left and right side ends of the roof) of the vehicle body side portion.

[0019] In addition, an impact beam 10 is provided inside the front side door FD (shown by a virtual line in FIG. 1) of the vehicle according to the present embodiment. This impact beam 10 is disposed so as to extend in the vehicle body front-rear direction in the closed state of the front side door FD. Mounting brackets 10a and 10b are provided at both the front and rear ends of the impact beam 10, and the impact beam 10 is joined to the panel material of the front side door FD by these mounting brackets 10a and 10b. And the position of the mounting bracket 10b at the rear end of the impact beam 10 is a position overlapping the lower part of the B-pillar 1 (a position overlapping the lower part of the B-pillar 1 when viewed from the vehicle width direction in the closed state of the front side door FD). For this reason, in the case of a side collision of the vehicle, the side collision load input to the impact beam 10 is input from the impact beam 10 to the lower part of the B-pillar 1 via the mounting bracket 10b.

[0020] -Configuration of B-pillar- The B-pillar 1 includes a B-pillar outer 4 having a hat-shaped cross-sectional shape that opens toward the inner side in the vehicle width direction, and a B-pillar inner (not shown) having a hat-shaped cross-sectional shape that opens toward the outer side in the vehicle width direction. Flange portions 41 and 42 extending in the vertical direction are provided on both sides in the vehicle body front-rear direction of each of the B-pillar outer 4 and the B-pillar inner.

[0021] In addition, inside the B-pillar 1, a B-pillar outer reinforcement 5 (see FIG. 2) is disposed. The B-pillar outer reinforcement 5 is formed in a hat-shaped cross-sectional shape that opens toward the inner side in the vehicle width direction. And flange portions 63, 66, 72c (these flange portions will be described in detail later) provided on the front side in the vehicle longitudinal direction of the B-pillar outer reinforcement 5 are sandwiched between a flange portion 41 provided on the front side in the vehicle longitudinal direction of the B-pillar outer 4 and a flange portion provided on the front side in the vehicle longitudinal direction of the B-pillar inner and welded (such as spot welding) to be integrally joined. Also, flange portions 66, 72d (these flange portions will also be described in detail later) provided on the rear side in the vehicle longitudinal direction of the B-pillar outer reinforcement 5 are sandwiched between a flange portion 42 provided on the rear side in the vehicle longitudinal direction of the B-pillar outer 4 and a flange portion provided on the rear side in the vehicle longitudinal direction of the B-pillar inner and welded to be integrally joined. As a result, the B-pillar 1 is configured with a closed cross-sectional structure extending in the vertical direction, and high rigidity is obtained.

[0022] FIG. 2 is a perspective view showing the structure around the joint portion between the rocker 2 and the B-pillar outer reinforcement 5 at the lower end of the B-pillar 1. In FIG. 2, the arrow FR indicates the front side of the vehicle body, the arrow OUT indicates the outer side in the vehicle width direction, and the arrow UP indicates the upper side.

[0023] Hereinafter, with reference to this FIG. 2, the structure around the joint portion between the rocker 2 and the B-pillar outer reinforcement 5 at the lower end of the B-pillar 1 will be described.

[0024] As shown in Fig. 2, the rocker 2 is composed of a rocker inner panel 21 and a rocker outer panel 22 that extend in the longitudinal direction of the vehicle body. The rocker inner panel 21 has a hat-shaped cross-sectional shape that is open to the outside in the vehicle width direction. The rocker outer panel 22 has a hat-shaped cross-sectional shape that is open to the inside in the vehicle width direction. And a closed cross-sectional structure is formed by joining the flange portions 21a, 22a and 21b, 22b formed on these panels 21, 22 respectively.

[0025] The B-pillar outer reinforcement 5 is composed of two upper and lower members. Specifically, it has a B-pillar outer reinforcement lower 6 joined to the rocker 2, and a B-pillar outer reinforcement upper (the B-pillar reinforcement member in the present invention) 7 joined to the outside of the B-pillar outer reinforcement lower 6 and extending upward and joined to the roof side rail 3.

[0026] The B-pillar outer reinforcement lower 6 has a hat-shaped cross-sectional shape that is open to the inside in the vehicle width direction. This B-pillar outer reinforcement lower 6 includes a first plate portion 61, a second plate portion 62, a third plate portion (not shown in Fig. 2 and thus not numbered), a front flange portion 63, and a rear flange portion (not shown in Fig. 2 and thus not numbered).

[0027] The first plate portion 61 extends in a direction perpendicular to the vehicle width direction. The second plate portion 62 extends from the edge on the front side of the vehicle body of the first plate portion 61 toward the inside in the vehicle width direction. The third plate portion extends from the edge on the rear side of the vehicle body of the first plate portion 61 toward the inside in the vehicle width direction. The front flange portion 63 extends from the leading edge (the leading edge on the inside in the vehicle width direction) of the second plate portion 62 toward the front side of the vehicle body. The rear flange portion extends from the leading edge (the leading edge on the inside in the vehicle width direction) of the third plate portion 62 toward the rear side of the vehicle body.

[0028] The lower part of the B-pillar outer reinforcement lower 6 is provided with flange portions 64, 65, 66 joined to the rocker outer panel 22. Specifically, it has a first flange portion 64 joined to the outer surface of the rocker outer panel 22, second flange portions 65, 65 joined to the upper surface of the rocker outer panel 22, and third flange portions 66, 66 joined to the flange portion 22a of the rocker outer panel 22. The first flange portion 64 is continuous with the first plate portion 61. The second flange portions 65, 65 are continuous with the second plate portion 62 and the third plate portion. The third flange portions 66, 66 are continuous with the front flange portion 63 and the rear flange portion.

[0029] The ridge line A between the first plate portion 61 and the second plate portion 62 at the lower part of the B-pillar outer reinforcement lower 6 curves downward and forward of the vehicle body. Also, the ridge line B between the first plate portion 61 and the third plate portion curves downward and rearward of the vehicle body.

[0030] Next, the B-pillar outer reinforcement upper 7 will be described. FIG. 3 is a perspective view of the B-pillar outer reinforcement upper 7. As shown in FIG. 3, the B-pillar outer reinforcement upper 7 includes an upper part 71 joined to the roof side rail 3, a central part 72 continuous with the lower side of the upper part 71 and having a hat-shaped cross-sectional shape opened inward in the vehicle width direction, and a lower part 73 continuous with the lower side of the central part 72.

[0031] The upper part 71 has a cross-sectional shape that matches the outer surface shape of the roof side rail 3 and is a portion that is overlapped and welded to the outer surface of the roof side rail 3.

[0032] The central part 72 includes a first plate portion 72a, a second plate portion 72b, a third plate portion (not labeled because it does not appear in FIGS. 2 and 3), a front flange portion 72c, and a rear flange portion 72d.

[0033] The first plate portion 72a extends in a direction orthogonal to the vehicle width direction. This first plate portion 72a is a portion that is overlapped and welded to the first plate portion 61 of the B-pillar outer reinforcement lower 6. The second plate portion 72b extends from the edge on the front side of the vehicle body in the first plate portion 72a toward the inner side in the vehicle width direction. This second plate portion 72b is a portion that is overlapped and welded to the second plate portion 62 of the B-pillar outer reinforcement lower 6. The third plate portion extends from the edge on the rear side of the vehicle body in the first plate portion 72a toward the inner side in the vehicle width direction. This third plate portion is a portion that is overlapped and welded to the third plate portion of the B-pillar outer reinforcement lower 6. The front flange portion 72c extends from the leading edge (the leading edge on the inner side in the vehicle width direction) of the second plate portion 72b toward the front side of the vehicle body. This front flange portion 72c is a portion that is overlapped and welded to the front flange portion 63 of the B-pillar outer reinforcement lower 6. The rear flange portion 72d extends from the leading edge (the leading edge on the inner side in the vehicle width direction) of the third plate portion toward the rear side of the vehicle body. This rear flange portion 72d is a portion that is overlapped and welded to the rear flange portion of the B-pillar outer reinforcement lower 6.

[0034] The lower part 73 includes a first plate portion 73a, a second plate portion 73b, and a third plate portion (not numbered as it does not appear in FIGS. 2 and 3), and has a U-shaped cross-sectional shape that opens toward the inner side in the vehicle width direction.

[0035] The first plate portion 73a extends in a direction orthogonal to the vehicle width direction. This first plate portion 73a, similar to the first plate portion 72a, is a portion that is overlapped and welded to the first plate portion 61 of the B-pillar outer reinforcement lower 6. The second plate portion 73b extends from the edge on the front side of the vehicle body in the first plate portion 73a toward the inner side in the vehicle width direction. The third plate portion extends from the edge on the rear side of the vehicle body in the first plate portion 73a toward the inner side in the vehicle width direction. Therefore, these second plate portion 73b and third plate portion correspond to the vehicle width direction extending portion (the vehicle width direction extending portion that extends in a direction intersecting the vehicle front-rear direction) in the present invention.

[0036] The feature of this embodiment lies in the shape of the edges 8 of the second plate portion 73b and the third plate portion in the lower part 73 (the inner edges in the vehicle width direction in the vehicle width direction extending portions that extend in a direction intersecting the vehicle body front-rear direction).

[0037] The shape of this edge 8 is a wavy shape that repeats concavities and convexities in the vehicle width direction over the vertical direction. Specifically, as shown in FIGS. 2 and 3, a first convex curve portion 8B and a second convex curve portion 8D are provided as convex curve portions that protrude toward the inner side in the vehicle width direction. Also, a first concave curve portion 8A and a second concave curve portion 8C are provided as concave curve portions that are concave toward the outer side in the vehicle width direction. And, starting from the upper side of this edge 8, they are continuously arranged in the order of the first concave curve portion 8A, the first convex curve portion 8B, the second concave curve portion 8C, and the second convex curve portion 8D. The curvature of the edge shapes of these concave curve portions 8A, 8C and convex curve portions 8B, 8D can be arbitrarily set. For example, it may be an arc shape having a predetermined curvature, or it may be a curve with a changing curvature. Also, the shapes of each of the concave curve portions 8A, 8C and convex curve portions 8B, 8D may be the same as each other, or may be different from each other. The forming of the shape of this edge 8 is performed simultaneously during the pressing process of the B-pillar outer reinforcement upper 7. Or, during the pressing process, the edge may be formed into a straight line shape, and then, processing to make it wavy may be performed on this edge.

[0038] Also, in this embodiment, two convex curve portions 8B, 8D and two concave curve portions 8A, 8C are provided respectively, but it is not limited to this, and one convex curve portion and one concave curve portion may be provided respectively, or three or more of each may be provided.

[0039] -When inputting a side impact load- Next, the deformation of the B-pillar outer reinforcement upper 7 during the operation when a side impact load is input will be described.

[0040] As described above, the position of the mounting bracket 10b at the rear end of the impact beam 10 overlaps with the lower part of the B-pillar 1. In the event of a side impact on the vehicle side, the side impact load input to the impact beam 10 is input from the impact beam 10 to the lower part of the B-pillar 1 via the mounting bracket 10b. That is, the side impact load is input to the lower part of the B-pillar outer reinforcement upper 7.

[0041] In the present embodiment, since the edge 8 of the B-pillar outer reinforcement upper 7 has a wave shape, when the side impact load is input to the lower part of the B-pillar outer reinforcement upper 7, the deformation of the first concave curve portion 8A and the second concave curve portion 8C is in the direction of shortening (shrinking) the line length of the concave curve portions 8A, 8C. That is, since no tensile load acting outward in the vertical direction acts on this part, it is a part that does not deform in the direction in which the line length extends. For this reason, in each of the concave curve portions 8A, 8C, breakage due to the side impact load is less likely to occur, and a rapid decrease in the yield strength of the lower part of the B-pillar 1 due to breakage is suppressed. Therefore, it is possible to improve the yield strength of the B-pillar 1 against the side impact load.

[0042] Hereinafter, the deformation states of the respective concave curve portions 8A, 8C will be specifically described. FIG. 4 is a schematic diagram for explaining the deformation state of the edge E (the inner edge in the vehicle width direction of the vehicle width direction extending portion extending in a direction intersecting the vehicle body front-rear direction) of the B-pillar outer reinforcement upper when a side impact load F is input in a comparative example in which the edge E is linear. In this FIG. 4, the right side in the figure is the outer side in the vehicle width direction, and the side impact load F is input from the right side to the linear edge E. When this side impact load F is input, the deformation of the edge E is in the direction of lengthening (stretching) the line length of the edge E (refer to the arrow in the tensile direction shown by the broken line in FIG. 4). That is, in this edge E, since a tensile load acting outward in the vertical direction acts, it deforms in the direction in which the line length extends and is likely to break.

[0043] On the other hand, FIG. 5 is a schematic diagram for explaining the deformation state (deformation state of the first concave curve portion 8A) of the edge 8 of the B-pillar outer reinforcement upper 7 when a side impact load F is input in the embodiment. As described above, when the side impact load F is input, the deformation of the first concave curve portion 8A is in the direction of shortening the line length of the first concave curve portion 8A (see the arrow in the compression direction indicated by the broken line in FIG. 5). That is, since no tensile load acting outward in the vertical direction acts on this portion, it is a portion that does not deform in the direction in which the line length extends. For this reason, breakage due to the side impact load F hardly occurs in the first concave curve portion 8A, and a rapid decrease in the yield strength of the lower part of the B-pillar 1 due to breakage is suppressed. Therefore, it becomes possible to improve the yield strength of the B-pillar 1 against the side impact load F.

[0044] Thus, in this embodiment, it is possible to improve the yield strength of the B-pillar 1 by a relatively simple configuration such as changing the shape of the edge 8 of the B-pillar outer reinforcement upper 7.

[0045] -Other Embodiments- Note that the present invention is not limited to the above-described embodiment, and all modifications and applications included in the scope of the claims and the scope equivalent thereto are possible.

[0046] For example, in the above-described embodiment, the configuration in which the edge 8 of the B-pillar outer reinforcement upper 7 has a corrugated shape is applied only to the lower part of the B-pillar outer reinforcement upper 7, but it may also be applied to the central part in the vertical direction.

Industrial Applicability

[0047] The present invention is applicable to a vehicle side structure for improving the yield strength of a B-pillar against a side impact load during a vehicle side impact.

Explanation of Reference Numerals

[0048] 1 B-pillar 7 B-pillar outer reinforcement upper (B-pillar reinforcement member) Edge of the upper part of the 8B pillar outer reinforcement 8A First concave curved portion 8B First convex curved portion 8C Second concave curved portion 8D Second convex curved portion

Claims

【Claim 1】 In a side body structure of a vehicle body provided with a B-pillar having a B-pillar outer reinforcement upper and a B-pillar outer reinforcement lower, which have a U-shaped cross-sectional shape that opens inward in the vehicle width direction, an impact beam is provided inside the front side door, and the rear end of the impact beam is joined to the panel material of the front side door via a mounting bracket. The position of the mounting bracket is such that it overlaps the lower part of the B-pillar when viewed in the vehicle width direction with the front side door in the closed state, and the side impact load during a side impact on the vehicle side is input from the impact beam to the lower part of the B-pillar outer reinforcement upper through the mounting bracket, a vehicle width direction extending portion that extends in a direction intersecting the vehicle body front-rear direction in the B-pillar outer reinforcement upper is joined to the B-pillar outer reinforcement lower, and the inner edge in the vehicle width direction of the vehicle width direction extending portion has a wavy shape that repeats unevenness in the vehicle width direction over the vertical direction, and is continuously arranged in the order of a first concave curve portion, a first convex curve portion, a second concave curve portion, and a second convex curve portion from the upper side, a vehicle body side structure, characterized in that a recess dimension of the first concave curve portion outward in the vehicle width direction is set larger than a recess dimension of the second concave curve portion outward in the vehicle width direction.

Images