Sealing structure of a truck bed with a shutter

Abstract

To provide a seal structure which can handle slight positional deviation, and is excellent in sealability.SOLUTION: In a load-carrying platform 1 of a truck, a shutter 100, which slides in a vehicle longitudinal direction to open and close an upper part of the load-carrying platform 1, is attached between left and right guide rails 201, 301 via an end cap 30, a tail gate 5, which surrounds the load-carrying platform 1 together with both of left and right side walls 2, 3 by standing, is provided at a rear end of the load-carrying platform, a shutter seal material 120, which elastically contacts the tail gate 5, is provided at a rear end of the shutter, and a bed liner seal material 50, which has a fitting plate part 51 and a hollow wall 52 that vertically extend, is provided at rear ends of both of left and right side walls 2, 3. An upper part of the tail gate 5 is covered with a first horizontal surface 31a of the end cap 30, an upper part of the hollow wall 52 opens, an extension wall 60 stands on a vehicle outer side of a vehicle side surface at an upper end of the hollow wall 52, and an uppermost end part 60a of the extension wall 60 approaches a second horizontal surface 39a of the end cap 30 in a non-contact state, that faces the same, when closing the shutter 100.SELECTED DRAWING: Figure 14

Description

Technical Field

[0001] The present invention relates to a sealing structure for a truck bed with a shutter, in which an opening / closing shutter is attached above the truck bed.

Background Art

[0002] Conventionally, as shown in FIG. 1, there is known a vehicle in which a shutter 100 is provided above a truck bed 1 and slides in the longitudinal direction of the vehicle to open and close above the truck bed 1.

[0003] The shutter 100 is attached between guide rails 201 and 301 provided at the upper parts of left and right side walls 2 and 3 erected at both left and right ends of the truck bed 1 in the vehicle width direction, and a tailgate 5 that is rotatable in the longitudinal direction of the vehicle is provided at the rear end of the truck bed 1. When the tailgate 5 stands up, the truck bed 1 is surrounded together with the left and right side walls 2 and 3, and the opening above the truck bed 1 is closed by sliding the shutter 100 from the front of the vehicle to the rear of the vehicle to completely close it.

[0004] In such a truck, even if the linear portions of the shutter 100 and the tailgate 5 are sealed, as in the portion X shown in FIG. 1, it is difficult to seal the upper parts of the left and right rear ends of the truck bed 1 in the vehicle width direction, and there is a problem that water enters onto the truck bed 1 from the gaps formed in that portion. Therefore, there are restrictions such as having to stack the cargo in front of the truck bed 1 in the vehicle width direction so that the cargo does not get wet.

[0005] Therefore, as shown in FIGS. 1, 2, and 3, a bedliner seal material 10 having protrusions 11 is provided at the rear ends of the left and right side walls 2 and 3 of the loading platform 1, and end caps 110 that elastically contact the bedliner seal material 10 when the shutter 100 is closed are provided at the left and right side ends of the rear part of the shutter 100. It is known that when the shutter 100 is closed, the end cap 110 is configured to contact upper surface seal beads 21 and 22 formed on the upper wall portion 12 of the protrusion 11 of the bedliner seal material 10 (Patent Document 1). Note that the shutter 100 is attached between the guide rails 201 and 301 via the end cap 110. In addition, in Patent Document 1, a shutter seal material 120 that elastically contacts the tailgate 5 when the tailgate 5 stands up is provided at the rear end portion of the shutter 100.

[0006] More specifically, a front gutter 25 extending in the left - right direction of the vehicle is provided at the lower front side of the vehicle of the protrusion 11 of the bedliner seal material 10. The front gutter 25 is provided between the front wall of the vehicle of the protrusion 11 and the front wall 26 of the gutter. The height of the front wall 26 of the gutter extending in the left - right direction of the vehicle is higher than the bottom surface of the front gutter 25 and lower than the height of the upper wall portion 12 of the protrusion 11. Furthermore, a side gutter 27 extending in the front - rear direction of the vehicle is provided inside the side surface portion 13 of the protrusion 11 of the bedliner seal material 10. The side gutter 27 is provided between the side surface portion 13 of the protrusion 11 and the side wall 28 of the gutter. The height of the side wall 28 of the gutter extending in the front - rear direction of the vehicle is higher than the bottom surface of the side gutter 27 and lower than the height of the upper wall portion 12 of the protrusion 11.

[0007] The side gutter 27 is provided so as to be located below the side surface seal beads 23 and 24, and the lower ends of the side surface seal beads 23 and 24 are connected to the bottom surface of the side gutter 27. The front gutter 25 and the side gutter 27 communicate in an L - shape and are inclined so that the bottom surface gently descends from the front gutter 25 side to the side gutter 27 side. A hole 29 is formed at the extension, that is, at the rear position of the vehicle of the side gutter 27. Through this hole 29, the water guided to the front gutter 25 and the side gutter 27 is discharged to the outside of the vehicle. The front wall 26 of the gutter and the side wall 28 of the gutter are also connected continuously. Note that an insert member 15 is embedded in the bed liner seal material 10 to increase its rigidity.

[0008] According to this, the upper rear ends (the X parts shown in FIG. 1) of the left and right side walls of the loading platform 1 are sufficiently sealed, so that water is prevented from entering the loading platform from outside the vehicle.

Prior Art Documents

Patent Documents

[0009]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0010] However, in the invention described in Patent Document 1, when the shutter 100 is closed, the end caps 110 provided at the left and right rear ends of the shutter 100 are brought into contact with either the upper surface seal beads 21, 22 or the side surface seal beads 23, 24. Therefore, if the opening and closing operation of the shutter 100 is repeated over the years, the protruding portion 11 may deteriorate. Furthermore, since the end caps 110 need to be in good overall contact with the upper surface seal beads 21, 22 and the side surface seal beads 23, 24, precision is required and the shape is limited. Therefore, there is a problem that the allowable range of displacement of the end caps 110 with respect to the protruding portion 11 becomes narrow.

[0011] Therefore, an object of the present invention is to provide a seal structure for a truck loading platform with a shutter that can cope with even a slight displacement and has excellent sealing performance at the upper rear ends of the left and right sides of the vehicle of the loading platform.

Means for Solving the Problems

[0012] To achieve the above object, the seal structure of the truck bed with a shutter according to the present invention is such that above the truck bed (1), a shutter (100) that slides in the longitudinal direction of the vehicle in parallel with the bed (1) and opens and closes above the bed (1) is provided between left and right guide rails (201, 301) provided at the upper parts of left and right side walls (2, 3) erected at both left and right ends of the bed (1) in the vehicle through end caps (30) provided on both left and right side surfaces of the vehicle. At the rear end of the bed (1), a tailgate (5) is provided which is rotatable in the longitudinal direction of the vehicle about its lower end and stands up to surround the bed (1) together with the left and right side walls (2, 3). And at the rear end of the shutter (100), a shutter seal material (120) is provided which elastically contacts the tailgate (5) when the tailgate (5) stands up. Moreover, at the rear ends of the left and right side walls (2, 3), there are provided an attachment plate portion (51) extending vertically and a hollow wall (52) integrated with the attachment plate portion (51) and extending vertically. The hollow wall (52) is provided with a bedliner seal material (50) which elastically contacts the tailgate (5) when the tailgate (5) stands up and the end cap (30) when the shutter (100) is closed. This is the seal structure of the truck bed with a shutter. When the shutter (100) is closed and when the tailgate (5) stands up, the upper part of the tailgate (5) is covered by a first horizontal plane (31a) formed on the end cap (30). The upper end of the hollow wall (52) of the bedliner seal material (50) is higher than the upper end (51a) of the attachment plate portion (51), and the upper part of the hollow wall (52) is open. An extension wall (60) extending upward is erected on the outside of the vehicle side surface at the upper end of the hollow wall (52), and the uppermost end portion (60a) of the extension wall (60) is brought into a non-contact state close to a second horizontal plane (39a) formed at a position lower than the first horizontal plane (31a) of the end cap (30) facing each other when the shutter (100) is closed.

[0013] Further, the present invention provides, above the mounting plate portion (51) of the bed liner sealing material (50), an extended mounting portion (53) having a mounting portion (54) that extends outward of the vehicle on the side surface of the vehicle and attaches the bed liner sealing material (50) to the rear ends of the left and right side walls (2, 3) at its end. A rear wall (61) that further extends upward from the upper end portion of the extended mounting portion (53) and whose wall surface is positioned in the longitudinal direction of the vehicle is erected, and a front gutter wall (62) that extends forward in the vehicle from the middle of the rear wall (61) and is inclined downward toward the inside of the vehicle is set. A front wall (63) that extends upward from the front end portion of the vehicle of the front gutter wall (62) and is parallel to the rear wall (61) is erected. Furthermore, the outer ends of the side surfaces facing each other of the rear wall (61), the front gutter wall (62), and the front wall (63) are connected to erect a rear cross wall (64) that extends above the rear wall (61) and the front wall (63). The heights of the rear wall (61) and the front wall (63) are made lower than the height of the extended wall (60), and the uppermost end portions (61a, 63a) of the rear wall (61) and the front wall (63) are brought into a non-contact state and close to a third horizontal plane (35a) formed at a position lower than the second horizontal plane (39a) of the end cap (30) that faces each other when the shutter (100) is closed.

[0014] Also, the present invention sets a horizontal gutter wall (56) that extends forward in the vehicle from the upper end (51a) of the mounting plate portion (51) of the bed liner sealing material (50). A front cross wall (57) whose wall surface is positioned in the vehicle's inside and outside direction is erected on the outside of the vehicle side surface of the horizontal gutter wall (56), and the rear end portion of the vehicle of the front cross wall (57) is continuously connected to the inside end portion of the vehicle of the front wall (63), and the heights of the front cross wall (57) and the front wall (63) are made the same. An inner peripheral wall portion (65) is erected from the front side of the vehicle of the horizontal gutter wall (56) to the inside of the vehicle side surface, and the inner peripheral wall portion (65) is continuously provided with the front cross wall (57) in front of the vehicle and is continuously provided with a hollow wall (52A) that forms the hollow portion (52) behind the vehicle. Connect the vehicle interior side end of the front gutter wall (62) to the vehicle exterior side end of the transverse gutter wall (56), and guide the water (W6) led to the front gutter wall (62) from the transverse gutter wall (56) into the hollow part (52) and discharge it to the outside of the vehicle.

[0015] Further, in the present invention, a large seal lip (70) is formed that extends from the rear side of the vehicle to the inner side of the vehicle side surface at the upper end of the hollow wall (52) of the bed liner sealing material (50), and continues to extend inward of the hollow wall (52) up to the inner peripheral wall portion (65) erected from the transverse gutter wall (56) on the front side of the vehicle. When the shutter (100) is closed, the lower surface of the rear end portion of the shutter (100) is elastically contacted with the front side of the vehicle of the large seal lip (70), and the shutter sealing material (120) is elastically contacted from the inner side of the vehicle side surface to the rear side of the vehicle of the large seal lip (70).

[0016] Further, in the present invention, a small seal lip (80) protruding toward the rear side of the vehicle is formed at the upper part of the extension attachment portion (53) of the bed liner sealing material (50), and the extension wall (60) is connected to the small seal lip (80). When the shutter (100) is closed, the second horizontal plane (39a) of the end cap (30) is elastically contacted with the upper surface of the small seal lip (80).

[0017] Further, in the present invention, the small seal lip (80) is inclined upward toward the rear side of the vehicle.

[0018] Further, in the present invention, the upper part of the hollow wall (52) of the bed liner sealing material (50) is formed by molding, and the extension wall (60) is set to gradually widen upward.

[0019] The symbols in parentheses indicate the corresponding elements or corresponding matters described in the drawings and the embodiments for carrying out the invention described later.

Advantages of the Invention

[0020] According to the present invention, when the shutter closes with the tailgate standing upright, the shutter sealing material provided at the rear end of the shutter elastically contacts the tailgate, and the end caps provided at the left and right rear ends of the shutter elastically contact the bedliner sealing material. Therefore, the upper parts of the rear ends of the left and right side walls of the cargo bed are sealed, preventing water from entering the cargo bed from outside the vehicle. At this time, the upper part of the tailgate is covered by the first horizontal plane formed on the end cap, preventing water from directly entering. Above the hollow wall, which is higher than the upper end of the mounting plate portion of the bedliner sealing material, is open. On the outside of the vehicle side of the vehicle, an extension wall extending further upward is erected, and the uppermost end portion of the extension wall is brought close to the second horizontal plane formed at a position lower than the first horizontal plane of the end cap in a non-contact state. Thus, the extension wall functions as a primary water stop material to receive a part of the water that enters. The water received by the extension wall is guided to the rear side of the vehicle of the extension wall and can be discharged to the outside from below the vehicle.

[0021] Also, unlike the end cap shown in the conventional example, high precision for overall good contact with the upper surface seal bead and the side surface seal bead is not required. As long as the second horizontal plane of the end cap is brought close to the erected extension wall in a non-contact state, it can cope with some displacement.

[0022] According to the present invention, an extension mounting portion extending to the outside of the vehicle side of the vehicle is provided at the upper part of the mounting plate portion of the bedliner sealing material. A rear wall extending upward is erected at the upper end portion of the extension mounting portion, and a front wall is erected on the front side of the vehicle of the rear wall. A front gutter wall is set between the rear wall and the front wall. The heights of the rear wall and the front wall are made lower than the height of the extension wall, and the uppermost end portions of the rear wall and the front wall are brought close to the third horizontal plane formed at a position lower than the second horizontal plane of the end cap facing each other when the shutter is closed in a non-contact state. Therefore, the rear wall functions as a secondary water stop material, and the front wall functions as a tertiary water stop material to receive a part of the water that further enters. Water that exceeds the uppermost end of the extension wall and is received by the rear wall is guided into the hollow portion and discharged to the outside of the vehicle from below. In addition, water that exceeds the uppermost end of the rear wall and is received by the front wall is guided into the hollow portion from the front gutter wall provided between the rear wall and the front wall and discharged to the outside of the vehicle from below. At this time, since a rear cross wall is provided at the outer ends on the vehicle side of the vehicle side surfaces of the rear wall, the front gutter wall, and the front wall, it is also possible to prevent the water guided to the front gutter wall from splashing to the inside of the vehicle.

[0023] According to the present invention, a horizontal gutter wall extending in the vehicle front direction from the upper end of the mounting plate portion of the bed liner sealing material is set, and an inner peripheral wall portion is erected from the vehicle front side of the horizontal gutter wall to the inside of the vehicle side surface. The inner peripheral wall portion is continuously provided with the front cross wall in the vehicle front and is continuously provided with the hollow wall forming the hollow portion in the vehicle rear. The inner end portion on the vehicle interior side of the front gutter wall is connected to the outer end portion on the vehicle exterior side of the horizontal gutter wall, and the water guided to the front gutter wall is guided from the horizontal gutter wall to the hollow portion and discharged to the outside of the vehicle. Therefore, it is possible to further prevent water from entering the loading platform.

[0024] According to the present invention, a large seal lip is formed that extends from the vehicle rear side of the upper end portion of the hollow portion of the bed liner sealing material across the inside of the vehicle side surface and continuously extends inward of the hollow wall up to the inner peripheral wall portion erected from the horizontal gutter wall on the vehicle front side. When the shutter is closed, the lower surface of the rear end portion of the shutter is elastically contacted on the vehicle front side of the large seal lip, and the outer end portion on the vehicle exterior side of the shutter sealing material is elastically contacted from the inside of the vehicle side surface to the vehicle rear side of the large seal lip. Therefore, the water tightness on the inner side of the vehicle side surface is improved above the bed liner sealing material.

[0025] According to the present invention, a small seal lip protruding toward the vehicle rear side is formed at the upper part of the extended mounting portion of the bed liner sealing material. The extension wall is connected to the root portion of the small seal lip. When the shutter is closed, the second horizontal plane of the end cap is elastically contacted on the upper surface of the small seal lip. Therefore, the water tightness on the outer side of the vehicle side surface is improved above the bed liner sealing material.

[0026] Further, according to the present invention, since the small seal lip rises and slopes toward the rear side of the vehicle, it functions as an attracting surface of the end cap when the shutter is closed. Therefore, when the shutter is closed, the end cap is prevented from being caught by the small seal lip, and the upper part of the bed liner sealing material is prevented from being abnormally deflected. Also, since the small seal lip rises and slopes toward the rear side of the vehicle, the end cap is prevented from being caught by the small seal lip even when the shutter is opened from the closed state.

[0027] Further, according to the present invention, the upper part of the hollow wall of the bed liner sealing material is molded, and the extension wall is set to gradually widen upward. Therefore, after molding, the core can be easily pulled out from above, improving workability.

Brief Description of the Drawings

[0028]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

Figure 14

Figure 15

Figure 16

Figure 17

Embodiments for Carrying Out the Invention

[0029] Referring to the drawings, the seal structure of the truck bed with a shutter according to an embodiment of the present invention will be described. The same reference numerals are given to the same parts as in the conventional example. As shown in FIG. 1, this seal structure relates to a seal structure mainly at the upper parts of the left and right rear ends (part X in FIG. 1) of the truck bed 1 in a truck bed provided with a shutter 100 that is arranged above the truck bed 1, slides in the longitudinal direction of the vehicle parallel to the truck bed 1, and opens and closes above the truck bed 1.

[0030] The shutter 100 is made of a metal such as an aluminum plate and is attached between left and right guide rails 201 and 301 provided at the upper parts of left and right side walls 2 and 3 erected at both left and right ends of the vehicle of the truck bed 1. As shown in FIG. 4, which is an enlarged cross-sectional view taken along line A-A in FIG. 1, the right guide rail 301 has a U-shaped cross-section with an opening facing inward, and a sliding portion 30A of a resin end cap 30 attached to the right side surface of the shutter 100 is inserted from the opening of the right guide rail 301, and the lower surface of the sliding portion 30A is supported by two protrusion portions 303 and 304 provided at the lower inner part of the right guide rail 301. In addition, a seal lip portion 305 is provided at the end of the upper inner part of the right guide rail 301, and it elastically contacts and seals the upper surface of the sliding portion 30A. Since the left guide rail 201 is symmetrical to the right guide rail 301, the illustration and description thereof are omitted.

[0031] As shown in FIG. 5, the end cap 30 is attached along the rear end side surface of the shutter 100 and has a first convex portion 31 that protrudes in the rear direction of the vehicle similar to the rear end of the shutter 100. A second convex portion 33 is provided below the first convex portion 31, a third convex portion 35 is provided below the second convex portion 33, a fourth convex portion 37 is provided below the third convex portion 35, and a fifth convex portion 38 is provided below the fourth convex portion 37.

[0032] A first horizontal surface 31a extending in the vehicle front direction is formed from the lower surface of the first convex portion 31, and a first concave portion 32 is provided at the front end of the first horizontal surface 31a. A first vertical surface 32a extends downward from the first concave portion 32, and a second convex portion 33 is provided at the lower end of the first vertical surface 32a. A second horizontal surface 39a extending in the vehicle front direction and the vehicle side outer direction is formed from the second convex portion 33, and a sixth convex portion 39 protruding outward is provided at the vehicle side outer direction end of the second horizontal surface 39a. Also, in the middle of the second horizontal surface 39a, a second concave portion 34 and a first inclined surface 34a extending obliquely forward and downward from the second concave portion 34 are provided. A third convex portion 35 is provided at the lower end of the first inclined surface 34a, and a third horizontal surface 35a extending in the vehicle front direction is formed on the lower surface of the third convex portion 35.

[0033] A third concave portion 36 and a second inclined surface 36a extending obliquely forward and downward from the third concave portion 36 are provided at the front end of the third horizontal surface 35a. A fourth convex portion 37 is provided at the lower end of the second inclined surface 36a, and a third inclined surface 37a extending obliquely forward and downward from the fourth convex portion 37 is provided. Also, a fifth convex portion 38 is provided at the vehicle front end of the third inclined surface 37a, and a second vertical surface 39b connecting the vehicle front end of the second horizontal surface 39a and the upper end of the second inclined surface 36a is formed. And the above-described sliding portion 30A is provided so as to extend further outward from the vehicle side outer end of the second vertical surface 39b.

[0034] Also, as shown in FIG. 6, which is FIG. 1 and an enlarged cross-sectional view taken along line B-B of FIG. 1, a tailgate 5 is provided at the rear end of the loading platform 1. The center of the left and right end portions of the tailgate 5 and the center of the rear end portions of the left and right side walls 2 and 3 are connected by stays 7 and 8, and the tailgate 5 is rotatable in the vehicle front-rear direction about the lower end as an axis, and when the tailgate 5 stands up, it surrounds the loading platform 1 together with the left and right side walls 2 and 3. When the shutter 100 is closed in this state, as shown by the broken line in FIG. 1, the opening on the loading platform 1 is closed.

[0035] Further, as shown in FIG. 6, a shutter seal member 120 that is downwardly hollow and extends in the vehicle left - right direction is provided at the rear end portion of the shutter 100. The shutter seal member 120 has a mounting base portion 121 attached to the shutter 100, a hollow seal portion 122 integrally formed therewith, and a seal lip portion 123 extending toward the rear side of the vehicle. When the tailgate 5 stands up, the shutter seal member 120 elastically contacts the tailgate seal member 6 provided on the upper portion of the mounting flange 5a provided on the tailgate 5, preventing water from entering between the shutter 100 and the tailgate 5. The tailgate seal member 6 is composed of a U - shaped mounting portion 6a with the opening facing downward and a seal lip portion 6b provided on its upper wall, and the seal lip portion 6b elastically contacts the hollow seal portion 122 of the shutter seal member 120 directly. Also, the seal lip portion 123 elastically contacts the upper portion of the tailgate 5 from above.

[0036] Further, as shown in FIG. 1, at the rear ends of the left and right side walls 2 and 3 erected at both left and right ends of the vehicle of the loading platform 1, left and right bed liners 9 are respectively provided so as to project inward of the loading platform 1, and bed liner seal members 50 as shown in FIGS. 7 to 10 are respectively provided on the rear side surfaces of the left and right bed liners 9.

[0037] As shown in FIG. 7, the lower side portion of the bed liner seal member 50 is extrusion - molded, and a molded portion on its upper part is integrally connected. The extrusion - molded portion 50A has, as shown in FIG. 10 which is a C - C cross - section of FIG. 7, a mounting plate portion 51 extending vertically and a hollow wall 52 integrally formed with the mounting plate portion 51. Mounting clips C are intermittently attached to the mounting plate portion 51 and are attached to the rear ends of the left and right side walls 2 and 3 of the loading platform 1. The hollow wall 52 has a substantially pantograph shape, and a vertex small protrusion 52a protruding toward the rear of the vehicle is provided at the central vertex portion. When the tailgate 5 stands up, it elastically contacts the middle portion of the mounting flange 5a provided on the tailgate 5, preventing water from entering between the rear ends of the left and right side walls 2 and 3 and the tailgate 5. In Fig. 7, in the display of the black and white triangles, the black side is the upper mold forming part 50B and the white side is the extrusion forming part 50A. Note that a mold forming part (not shown) is also connected to the lower part of the extrusion forming part 50A, and a drain hole is provided there. Thus, the water W led into the hollow part 52A is discharged to the outside of the vehicle through the drain hole.

[0038] In the upper mold forming part 50B of the bed liner sealing material 50, as shown in Figs. 7 and 8, the upper part of the hollow wall 52 is open, and the hollow wall 52 surrounding the hollow part 52A projects upward so that the upper end of the hollow wall 52 is higher than the upper end 51a of the mounting plate part 51. An extension mounting part 53 extending to the outside of the vehicle side surface is provided on the upper part of the mounting plate part 51, and a mounting part 54 for mounting the bed liner sealing material 50 to the rear end of the vehicle side wall is connected to the end of the extension mounting part 53. An out - sert 55 is fixed to the rear side surface of the vehicle of the mounting part 54. Note that Fig. 7 shows the state where the out - sert 55 is removed from the mounting part 54. Although not shown, a hook is provided on the lower side of the out - sert 55 and is hooked on the hook through - hole 54a formed on the lower side of the mounting part 54 as shown in Fig. 7. Also, as shown in Fig. 8, two clip parts 55a are provided on the upper side of the out - sert 55, penetrate through the two clip part through - holes 54b formed on the upper side of the mounting part 54, and are locked to the rear side surface of the vehicle of the bed liner 9.

[0039] In addition, a horizontal gutter wall 56 extending in the vehicle front direction is provided from the upper end 51a of the mounting plate portion 51 of the bed liner sealing material 50, and a horizontal plate portion 58 is provided outside the vehicle on the vehicle side surface of the horizontal gutter wall 56 with a front horizontal wall 57 therebetween. The front horizontal wall 57 is erected so that its wall surface is positioned in the vehicle interior and exterior direction. A clip hole 58a is formed at the center of the horizontal plate portion 58, and as shown in FIG. 11, the bed liner sealing material 50 is fixed to the upper surface of the right guide rail end cap 306 by a clip 59. Here, the right guide rail end cap 306 is attached to the right side wall 3 in the same manner as the right guide rail 301. (Not shown) Further, as shown in FIGS. 11 and 12, a seal lip portion 305 is also attached to the right guide rail end cap 306. The clip 59 is shown in FIGS. 11, 13, and 14 which will be described later.

[0040] In the mold forming portion 50B, as shown in FIG. 7, an extension wall 60 extending upward is erected outside the vehicle on the vehicle side surface at the upper end of the hollow wall 52. The extension wall 60 is set to gradually widen upward.

[0041] Further, as shown in FIG. 14 which is a D-D cross section of FIG. 12, a rear wall 61 extending further upward from the upper end portion of the extension mounting portion 53 and having its wall surface positioned in the vehicle front-rear direction is erected, and a front gutter wall 62 extending in the vehicle front direction from the middle of the rear wall 61 and inclined downward toward the vehicle interior is provided. Further, a front wall 63 extending upward from the vehicle front end portion of the front gutter wall 62 and parallel to the rear wall 61 is erected. The upper surface of the front gutter wall 62 is formed lower than the upper surfaces of the rear wall 61 and the front wall 63 erected front and rear.

[0042] Furthermore, as shown in FIG. 8, the outer ends of the vehicle side surfaces on the sides where the rear wall 61, the front gutter wall 62, and the front wall 63 face each other are connected by a rear horizontal wall 64. The rear horizontal wall 64 is erected so as to extend above the rear wall 61 and the front wall 63. In addition, the vehicle rear end portion of the front horizontal wall 57 is continuously connected to the vehicle interior end portion of the front wall 63, and the heights of the front horizontal wall 57 and the front wall 63 are made the same (not shown). Further, as shown in FIG. 9, an inner peripheral wall portion 65 is erected from the vehicle front side of the lateral gutter wall 56 to the inner side of the vehicle side surface, and the inner peripheral wall portion 65 is connected to the vehicle front side end portion of the front lateral wall 57 in front of the vehicle and is also connected to a hollow wall 52A that forms a hollow portion 52 behind the vehicle.

[0043] Then, as shown in FIG. 8, the vehicle interior side end portion of the front gutter wall 62 is connected to the vehicle exterior side end portion of the lateral gutter wall 56, and water W6 (details will be described later in FIG. 14) guided to the front gutter wall 62 is guided from the lateral gutter wall 56 to the hollow portion 52 and discharged to the outside of the vehicle. Since the front gutter wall 62 is inclined (not shown) so as to be lower toward the vehicle interior side, its vehicle interior side end portion may be set at the same height as the lateral gutter wall 56, but here, the vehicle interior side end portion of the front gutter wall 62 is set slightly higher (not shown) than the lateral gutter wall 56.

[0044] Also, as shown in FIGS. 7 and 9, a large seal lip 70 is formed at the upper end portion of the hollow wall 52 of the bed liner seal material 50. The large seal lip 70 extends from the vehicle rear side of the upper end portion of the hollow wall 52 across the inner side of the vehicle side surface and continuously extends inward of the hollow portion 52 up to the inner peripheral wall portion 65 erected from the lateral gutter wall 56 at the vehicle front side. That is, the bending direction of the lip tip 70a of the large seal lip 70 is backward at the vehicle front side portion, outward of the vehicle side surface at the central portion, and forward at the vehicle rear side portion. Further, the large seal lip 70 is inclined upward as it extends inward of the hollow wall 52.

[0045] Also, as shown in FIG. 9, a small V-shaped cut 71 is provided at the connection portion with the front lateral wall 57 at the front end portion of the large seal lip 70. The apex of the V shape of the small V-shaped cut 71 is at the vehicle front side and is obliquely downward. Further, a large V-shaped recess 72 is provided at the vehicle rear side of the extension wall 60. The large V-shaped recess 72 has a larger degree of cutting compared to the small V-shaped cut 71, and the apex of the V shape of the large V-shaped recess 72 is downward. The position of the apex of the V shape of the large V-shaped recess 72 is set at a position about 10 mm lower than the upper end portion of the large seal lip 70.

[0046] By providing the small V-shaped cut 71 and the large V-shaped recess 72 in this way, a portion with relatively low rigidity is formed, making it easier for the hollow wall 52 to expand upward. This facilitates the removal of the core after molding, thereby improving workability. As shown in Fig. 8, the extension wall 60 is set to gradually expand upward. Therefore, either the small V-shaped cut 71 or the large V-shaped recess 72 may be provided, or neither may be provided.

[0047] Furthermore, as shown in Fig. 15, which is a cross-section taken along line E-E of Figs. 9 and 12, a small seal lip 80 protruding toward the rear of the vehicle is formed on the upper part of the extension attachment portion 53 of the bedliner seal material 50 on the vehicle rear side of the rear cross-wall 64. The front-end portion of the extension wall 60 on the vehicle side is connected to the small seal lip 80. As shown in Fig. 9, the small seal lip 80 is set with an upward inclination such that it rises upward as it goes rearward.

[0048] Also, as shown in Fig. 17, which is a cross-section taken along line F-F of Figs. 12 and 12, similar to the small seal lip 80, an upward inclined portion 60b that inclines upward and rearward of the vehicle is set from near the root portion of the small seal lip 80 to the uppermost end portion 60a at the upper end of the extension wall 60. Thus, when the shutter 100 is closed, it functions as an attracting surface for the end cap 30. Therefore, when the shutter 100 is closed, it is prevented that the end cap 30 catches on the extension wall 60 and the upper part of the bedliner seal material 50 is abnormally deflected. Also, since a downward inclined portion 60c that inclines downward is set rearward of the uppermost end portion 60a, it is prevented that the end cap 30 catches on the extension wall 60 when the shutter 100 is opened from the closed state. Furthermore, the lower end portion of the downward inclined portion 60c is at the connection position with the large V-shaped recess 72. As shown in Figs. 7 and 12, the upper inner corner portion on the vehicle side surface of the outseat 55 where the small seal lip 80 is set is provided with a notch.

[0049] As the material applicable to the bed liner sealing material 50, there is no particular limitation as long as it is a rubber-like elastic body. In the case of rubber, synthetic rubbers such as EPDM are applicable, and in the case of resin, thermoplastic resins such as olefin-based thermoplastic resins are applicable. Further, depending on the material hardness, the material may be a foamed material or a non-foamed material, and both may be used separately depending on the part.

[0050] Also, in the shutter sealing material 120 and the tailgate sealing material 6, the same materials as those applicable to the bed liner sealing material 50 are applicable. Furthermore, in the tailgate sealing material 6, a high-rigidity member may be embedded in the attachment portion 6a.

[0051] Then, as shown in FIG. 11, when the shutter 100 slides from the front side to the rear side of the vehicle and then closes as shown in FIGS. 12 to 14, in the upper molded portion 50B of the bed liner sealing material 50, at the rear portion of the vehicle of the large seal lip 70 formed at the upper end of the hollow wall 52 and at the central portion on the inner side of the vehicle side surface, as shown in FIGS. 12 and 13, the shutter sealing material 120 provided at the rear end portion of the shutter 100 elastically contacts from above, and at the front portion of the vehicle of the large seal lip 70, as shown in FIG. 16 which is a cross-section taken along the line G-G of FIG. 14, the horizontal surface 101 formed at the lower portion of the central body portion of the shutter 100 (that is, the portion located inward from the side surface where the end cap 30 is provided) elastically contacts from above. Thereby, the water stoppage property on the inner side of the vehicle side surface is improved in the upper molded portion 50B of the bed liner sealing material 50.

[0052] Also, at that time, as shown in FIGS. 12 and 15, the second horizontal surface 39a of the end cap 30 provided on the side surface of the shutter 100 elastically contacts from above the upper surface of the small seal lip 80 provided at the upper portion of the extended attachment portion 53 of the bed liner sealing material 50. Thereby, the water stoppage property on the outer side of the vehicle side surface is improved in the upper molded portion 50B of the bed liner sealing material 50.

[0053] Then, at the central portion of the upper molding portion 50B of the bedliner sealing material 50 shown in FIG. 12, as shown in FIG. 14 which is a cross-sectional view taken along line D-D of FIG. 12, when the shutter 100 is closed, the uppermost end portion 60a of the extension wall 60 extending upward from the hollow wall 52 is brought into proximity to the second horizontal plane 39a formed at a position lower than the first horizontal plane 31a of the end cap 30 with which the uppermost end portion 60a of the extension wall 60 faces. That is, there is a slight gap between the uppermost end portion 60a of the extension wall 60 and the second horizontal plane 39a, or it is in a state of 0 (zero) contact (a state where the gap and the lap are "0"). Similarly, the uppermost end portion 61a of the rear wall 61 and the uppermost end portion 63a of the front wall 63 provided in front of the vehicle of the extension wall 60 are brought into proximity to the third horizontal plane 35a formed at a position lower than the second horizontal plane 39a of the end cap 30 with which they face when the shutter 100 is closed, without contact. That is, there is a slight gap between the uppermost end portion 61a of the rear wall 61 and the uppermost end portion 63a of the front wall 63 and the third horizontal plane 35a, or it is in a state of 0 (zero) contact (a state where the gap and the lap are "0"). Also, with respect to the head of the clip 59 for fixing the bedliner sealing material 50, the third inclined surface 37a extending obliquely forward and downward of the vehicle from the fourth convex portion 37 formed below the end cap 30 and the fifth convex portion 38 formed at the front end portion of the vehicle thereof are brought into proximity without contact.

[0054] Then, when the tailgate 5 stands up when the shutter 100 is closed, as shown in FIG. 6, on the inner side of the vehicle side surface, as described above, the tailgate sealing material 6 provided on the tailgate 5 elastically contacts the shutter sealing material 120 provided at the rear end portion of the shutter 100, and the tailgate 5, as shown in FIG. 10 which is a cross-sectional view taken along line C-C of FIG. 7, elastically contacts the vehicle rear side of the hollow wall 52 of the extrusion molding portion 50A below the bedliner sealing material 50. Also, in the upper molding portion 50B of the bedliner seal material 50 at the central portion, as shown in FIG. 14 which is the D-D cross section of FIG. 12 and FIG. 12, the tailgate seal material 6 elastically contacts the rear vehicle side surface of the extension wall 60 of the bedliner seal material 50, but the shutter seal material 120 does not exist. Moreover, the upper part of the tailgate 5 is covered without contacting from above by the first horizontal surface 31a formed on the end cap 30. Here, the gap between the upper part of the tailgate 5 and the first horizontal surface 31a is made small. Further, although not shown, in the portion outside the vehicle compared to FIG. 14, the tailgate seal material 6 and the rear vehicle side surface of the extension wall 60 of the bedliner seal material 50 are not elastically contacted. More specifically, as shown in FIG. 8, since the extension wall 60 is curved and protruded toward the rear side of the vehicle, at the portion shown in FIG. 14, although they are elastically contacted, the elastically contacting section is short, and outside the vehicle of the elastically contacting section, they are not elastically contacted.

[0055] According to the seal structure of the truck bed with a shutter configured as described above, as shown in FIGS. 14 and 8, even if water W1 enters between the shutter 100 and the tailgate 5 when the shutter 100 is closed and the tailgate 5 is erected, the extension wall 60 provided close to the second horizontal surface 39a of the end cap 30 functions as a primary water stop material, and water W2, which is a part of the water W1, falls from the non-elastically contacted portion outside the vehicle of the extension wall 60 and the tailgate seal material 6 and is drained outside the vehicle. Also, as shown in Fig. 14, the tailgate sealing material 6 and the extension wall 60 of the bedliner sealing material 50 are elastically contacted. Further, as shown in Fig. 10, which is the lower part of Fig. 14, the tailgate 5 and the hollow wall 52 of the extrusion-molded part 50A of the bedliner sealing material 50 are elastically contacted. Also, as shown in Fig. 6, which is the part inside the vehicle in Fig. 14, the tailgate sealing material 6 and the hollow seal part 122 of the shutter sealing material 120 are elastically contacted. Therefore, water W2 does not flood into the vehicle interior. Also, the rear wall 61 provided on the front side of the vehicle and close to the third horizontal plane 35a of the end cap 30 functions as a secondary water stop. Water W4, which is a part of water W3, flows down the rear gutter wall 66 provided at the connection part of the extension wall 60 and the rear wall 61 and is drained into the hollow part 52A. Here, although not shown in the figure, the rear gutter wall 66 is inclined obliquely downward toward the vehicle interior. Also, the front wall 63 provided close to the third horizontal plane 35a of the end cap 30 functions as a tertiary water stop. Water W6, which is a part of water W5, flows down in the order of the front gutter wall 62, the horizontal gutter wall 56, and the upper end 51a and is drained into the hollow part 52A. Further, a rear horizontal wall 64 connected from the front wall 63 is provided on the outside of the vehicle of the front wall 63, and a front horizontal wall 57 connected from the front wall 63 is provided on the front side of the vehicle of the front wall 63. Therefore, it is possible to prevent water W6 from flooding onto the loading platform 1.

[0056] That is, the water W1 that has flooded between the shutter 100 and the tailgate 5 is primarily stopped by the extension wall 60 and reduced to water W3 less than water W2. Next, water W3 is secondarily stopped by the rear wall 61 and reduced to water W5 less than water W4. Further, water W5 is tertiarily stopped by the front wall 63 and reduced to water W7 less than water W6. In this way, through primary water stop, secondary water stop, and tertiary water stop, water W1 is reduced three times to W2, W4, and W6 and becomes water W7. Therefore, the water W7 that infiltrates onto the loading platform 1 can be minimized.

[0057] Note that the water W2 received by the extension wall 60 is guided to the rear side of the vehicle of the extension wall 60 and discharged to the outside of the vehicle. In addition, the water W4 received by the rear wall 61 and above the uppermost end portion 60a of the extension wall 60 is guided into the hollow portion 52A and discharged to the outside of the vehicle through a drain hole (not shown) formed downward. Furthermore, the water W6 received by the front wall 63 and above the uppermost end portion 61a of the rear wall 61 is guided from the front gutter wall 62 provided between the rear wall 61 and the front wall 63, through the lateral gutter wall 56, into the hollow portion 52A and discharged to the outside of the vehicle through a drain hole (not shown) formed downward.

[0058] Also, as shown in FIGS. 9 and 17, when the shutter 100 is closed, the upper surfaces of the large seal lip 70 with which the shutter 100 directly elastically contacts and the small seal lip 80 with which the end cap 30 attached to the shutter 100 directly elastically contacts both form surfaces that slope upward toward the rear side of the vehicle, serving as guiding surfaces for the shutter 100 and the end cap 30. Therefore, it is possible to prevent the shutter 100 and the end cap 30 from getting caught and the upper part of the bed liner sealing material 50 from being abnormally deflected. Furthermore, since the large seal lip 70 and the small seal lip 80 are set with an upward slope, even when the shutter 100 is opened after being closed, it is possible to prevent the shutter 100 and the end cap 30 from getting caught by the large seal lip 70 and the small seal lip 80 and the upper part of the bed liner sealing material 50 from being abnormally deflected.

[0059] In this embodiment, the upper mold-formed portion 50B of the bed liner sealing material 50 forms the lateral gutter wall 56 on the front side of the vehicle from the hollow wall 52 that extends directly upward from the extrusion-molded portion 50A, and the upper part has a shape that projects toward the front side of the vehicle. However, without forming this lateral gutter wall 56, the water W6 from the front gutter wall 62 may be directly guided into the hollow portion 52A.

Explanation of Reference Numerals

[0060] 1 Loading platform 2 Left side wall 3 Right side wall 5 Tailgate 5a Mounting flange 6 Tailgate sealing material 6a Mounting part 6b Seal lip part 7, 8 Stay 9 Bed liner 10 Bed liner sealing material 11 Protrusion 12 Upper wall part 13 Side wall part 15 Insert 21 Upper surface seal bead 22 Upper surface seal bead 23 Side surface seal bead 24 Side surface seal bead 25 Front gutter 26 Gutter front wall 27 Side gutter 28 Gutter side wall 29 Hole 30 End cap 30A Sliding part 31 First convex part 31a First horizontal plane 32 First concave part 32a First vertical plane 33 Second convex part 34 Second concave part 34a First inclined plane 35 Third convex part 35a Third horizontal plane 36 Third concave part 36a Second inclined plane 37 Fourth convex part 37a Third inclined plane 38 Fifth convex part 39 Sixth convex part 39a Second horizontal plane 39b Second vertical plane 50 Bed liner sealing material 50A Extrusion forming part 50B Mold forming part 51 Mounting plate part 51a Upper end 52 Hollow wall 52a Apex small protrusion 52A Hollow part 53 Extended mounting part 54 Mounting part 54a Hook through-hole 54b Clip part through-hole 55 Outsert 55a Clip part 56 Horizontal gutter wall 57 Front horizontal wall 58 Horizontal plate part 58a Clip hole 59 Clip 60 Extension wall 60a Topmost end part 60b Upper inclined part 60c Lower inclined part 61 Rear wall 61a Topmost end part 62 Front gutter wall 63 Front wall 63a Topmost end part 64 Rear horizontal wall 65 Inner peripheral wall part 70 Large seal lip 70a Lip tip 71 V-notch 72 Large V-shaped recess 80 Small seal lip 80a Lip tip 100 Shutter 110 End cap 120 Shutter seal material 121 Mounting base 122 Hollow seal part 123 Seal lip part 201 Left guide rail 301 Right guide rail 303 Ridge part 304 Ridge part 305 Seal lip part 306 Right guide rail end cap C Mounting clip W (W1~W7) Water

Claims

1. Above the loading platform of the truck, a shutter that slides in the longitudinal direction of the vehicle parallel to the loading platform and opens and closes above the loading platform is attached between left and right guide rails provided on the upper parts of left and right side walls erected at both left and right ends of the loading platform of the vehicle via end caps provided on both left and right side surfaces of the vehicle. At the rear end of the loading platform, a tailgate is provided that is rotatable in the longitudinal direction of the vehicle about its lower end as an axis and encloses the loading platform together with the left and right side walls by standing up. At the rear end of the shutter, a shutter sealing material that elastically contacts the tailgate when the tailgate stands up is provided. Moreover, at the rear ends of the left and right side walls, there are provided an attachment plate portion extending vertically and a hollow wall integrated with the attachment plate portion and extending vertically. The hollow wall is provided with a bedliner sealing material that elastically contacts the tailgate when the tailgate stands up and the end cap when the shutter is closed. This is a sealing structure for a truck loading platform with a shutter, When the shutter is closed and when the tailgate stands up, the upper part of the tailgate is covered by a first horizontal plane formed on the end cap, The upper end of the hollow wall of the bedliner sealing material is higher than the upper end of the attachment plate portion, and the upper part of the hollow wall is open. An extension wall extending upward is erected on the outside of the vehicle side surface at the upper end of the hollow wall. The uppermost end portion of the extension wall is brought close to a second horizontal plane formed at a position lower than the first horizontal plane of the end cap facing each other when the shutter is closed in a non-contact state. A sealing structure for a truck loading platform with a shutter is characterized by this.

2. On the upper part of the attachment plate portion of the bedliner sealing material, an extended attachment portion is provided that extends to the outside of the vehicle on the vehicle side surface and at the end thereof, an attachment portion for attaching the bedliner sealing material to the rear ends of the left and right side walls is connected, A rear wall that extends further upward from the upper end portion of the extended attachment portion and whose wall surface is positioned in the longitudinal direction of the vehicle is erected. At the middle of the rear wall, a front gutter wall that extends in the vehicle forward direction and is inclined to be lower toward the inside of the vehicle is set, A front wall that extends upward from the vehicle front side end portion of the front gutter wall and is parallel to the rear wall is erected, Furthermore, the outside ends of the side surfaces facing each other of the rear wall, the front gutter wall, and the front wall are connected, and a rear cross wall that extends above the rear wall and the front wall is erected, The height of the rear wall and the front wall is made lower than the height of the extension wall, and the uppermost ends of the rear wall and the front wall are brought into proximity to a third horizontal plane formed at a position lower than the second horizontal plane of the end cap that faces each other when the shutter is closed, in a non-contact state. The seal structure of the truck bed with a shutter according to claim 1, characterized in that.

3. A horizontal gutter wall extending in the vehicle front direction from the upper end of the mounting plate portion of the bed liner seal material is set, A front horizontal wall is erected on the outside of the vehicle side surface of the horizontal gutter wall such that its wall surface is positioned in the vehicle interior and exterior direction, and the rear end portion of the front horizontal wall on the vehicle side is continuously connected to the inner end portion of the front wall on the vehicle interior side, and the height of the front horizontal wall and the front wall is made the same. An inner peripheral wall portion is erected from the front side of the vehicle of the horizontal gutter wall to the inside of the vehicle side surface, and the inner peripheral wall portion is connected continuously to the front horizontal wall in the front of the vehicle and to the hollow wall forming the hollow portion in the rear of the vehicle. The inner end portion of the front gutter wall on the vehicle interior side is connected to the outer end portion of the horizontal gutter wall on the vehicle exterior side, and water guided to the front gutter wall is guided from the horizontal gutter wall to the hollow portion and discharged to the outside of the vehicle. The seal structure of the truck bed with a shutter according to claim 2, characterized in that.

4. A large seal lip is formed that extends from the rear side of the upper end portion of the hollow wall of the bed liner seal material across the inside of the vehicle side surface to the inside of the vehicle in the front of the vehicle, and continuously extends inward of the hollow wall up to the inner peripheral wall portion erected from the horizontal gutter wall in the front of the vehicle. When the shutter is closed, the lower surface of the rear end portion of the shutter is elastically contacted on the front side of the vehicle of the large seal lip, and the shutter seal material is elastically contacted from the inside of the vehicle side surface to the rear side of the vehicle of the large seal lip. The seal structure of the truck bed with a shutter according to claim 3, characterized in that.

5. A small seal lip protruding toward the rear side of the vehicle is formed on the upper portion of the extension mounting portion of the bed liner seal material. The extension wall is connected to the small seal lip, and when the shutter is closed, the second horizontal plane of the end cap is elastically contacted on the upper surface of the small seal lip. The seal structure of the truck bed with a shutter according to any one of claims 2 to 4, characterized in that.

6. The small seal lip is inclined upward toward the rear side of the vehicle. The seal structure of the truck bed with a shutter according to claim 5, characterized in that.

7. The upper part of the hollow wall of the bed liner sealing material is molded, and the extension wall is set to gradually widen upward. The shutter-equipped track bed sealing structure according to any one of claims 1 to 6, characterized in that.

Images