JP2008307986A - Waterproof structure of trunk lid - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a waterproof structure of a trunk lid that demonstrates high waterproof effect of not passing water almost at all. <P>SOLUTION: An annular outer weatherstrip 11 is mounted on the circumferential edge part of an opening 1a which accesses a trunk room 50 of a bus, and an inner weatherstrip 16 of approximately a U shape on its inside circumferential side. On the inner surface of the trunk lid, which opens and closes the opening 1a, an annular lid-side weatherstrip which contacts the outer weatherstrip 11 is mounted. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a waterproof structure for a trunk lid of a relatively large vehicle such as a bus.

  2. Description of the Related Art Conventionally, as a waterproof structure of a vehicle, a structure in which weatherstrips are provided on the edge of a sunroof that can be opened and closed is known (see, for example, Patent Document 1). In this way, by providing double weather strips on the edge of a lid (such as a door or a trunk lid) that opens and closes the opening of the vehicle body, it is possible to reliably prevent rainwater and dust from entering from the outside. I can expect.

  However, for example, in a vehicle having a relatively large monocoque vehicle body such as a sightseeing bus, the vehicle body is more twisted during traveling than a relatively small private vehicle. For this reason, for example, when the waterproof structure described in the above publication is adopted for the trunk lid provided on the side of the bus, the trunk lid hardly twists against the relatively large vehicle body torsion. Cause large deviations.

In this way, when a gap is generated between the trunk lid and the vehicle body, between the weather strip provided on the edge of the trunk lid and the vehicle body, or between the weather strip provided on the opening edge of the vehicle body and the trunk lid. Deviation occurs. In other words, with a seal structure in which the weather strip is in contact with a rigid body such as the vehicle body or lid, when the vehicle body is greatly twisted, slipping occurs between the two, and water enters the contact area, so that a sufficiently satisfactory waterproof effect Can't get.
JP 2004-155237 A (FIGS. 1 and 2)

  An object of the present invention is to provide a waterproof structure for a trunk lid capable of exhibiting a high waterproof effect that hardly allows water to pass through.

  In order to achieve the above object, a waterproof structure for a trunk lid according to the present invention includes an annular first weather strip that is continuously attached over the entire circumference of a peripheral edge of a trunk opening provided on a side surface of a vehicle body, An annular second weather strip attached to a position where the trunk lid is in an airtight state when the trunk lid is disposed at a closed position at an inner peripheral edge of the trunk lid that opens and closes the opening; In the vicinity of the inner periphery of the second weather strip, the first weather strip is disposed in the vicinity of the inner periphery of the first weather strip so that the rib protrudes from the inner surface side of the trunk lid in an airtight state. And a third weatherstrip attached to the vehicle body.

  According to the above invention, the first weather strip attached to the peripheral edge of the opening and the second weather strip attached to the inner peripheral edge of the trunk lid are brought into contact with each other in an airtight state with the trunk lid closed. Therefore, even when the vehicle body is distorted and a gap is generated between it and the trunk lid, the contact surface between the first weather strip and the second weather strip does not shift, and the gap between the two is weathered. Can be absorbed by strip deformation. As described above, according to the present invention, since the contact surface between the first weather strip and the second weather strip does not shift, it is possible to reliably prevent water and dust from entering, and to exert a high waterproof effect. .

  In addition, according to the above-described invention, even if water enters from the outside through the seal portion between the first weather strip and the second weather strip, the third weather strip that is in close contact with the ribs By this, water can be prevented from further entering the interior, and water can be more reliably prevented from entering the trunk room.

  Since the waterproof structure of the trunk lid of the present invention has the above-described configuration and operation, it can exhibit a high waterproof effect that hardly allows water to pass through.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is an external perspective view of a sightseeing bus 1 (hereinafter referred to as a vehicle 1) having a waterproof structure for a trunk lid 5 according to an embodiment of the present invention.

  The vehicle 1 includes a swing door 2 on the left side surface in front of the traveling direction, and has a driver's seat 3 on the right side in front of the vehicle. The passenger goes up the step (not shown) through the swing door 2, passes through the side of the driver's seat 3, and sits on the seat through a passage (not shown) extending substantially in the center of the vehicle. That is, the passage and the seat are at a position higher than the ground, and the space under the vehicle 1 below the passage and the seat is used as a trunk room.

  For this reason, on the left side surface of the vehicle 1, three trunk lids 5 for accessing the trunk room under the passage from the outside of the vehicle are attached so as to be openable and closable. Three trunk lids 5 are also attached to the right side surface of the vehicle 1 (not shown). The number, position, and size of the trunk lid 5 are not limited to the present embodiment. Although a detailed description of the opening / closing structure of the trunk lid 5 is omitted here, a general opening / closing mechanism of a type in which the trunk lid 5 is flipped upward using a swing arm is adopted in the present embodiment. Yes.

Hereinafter, the waterproof structure of the trunk lid 5 will be described in detail with reference to FIGS. 2 to 7.
FIG. 2 shows the inner surface of the trunk lid 5 in the vehicle width direction. FIG. 3 shows an opening of the trunk room on the vehicle body side from which the trunk lid 5 is removed. FIG. 4 is a partially enlarged sectional view of the trunk lid 5 taken along the line IV-IV in FIG. 1, and FIG. 5 shows a line VV in FIG. FIG. 6 is a partially enlarged sectional view of the trunk lid 5 taken along the vicinity of the lower edge, and FIG. 6 is a partially enlarged sectional view of the trunk lid 5 taken along the line VI-VI in FIG. Is shown. Further, FIG. 7 shows a partially enlarged external perspective view of the vicinity of the lower end of the pillar between the trunk rooms from the direction of arrow VII in FIG.

  As shown in FIG. 3, an annular vehicle body side outer weather strip 11 (hereinafter simply referred to as an outer W / W) is provided around the periphery of the vehicle body side opening 1a to which the trunk lid 5 is attached so as to be opened and closed. (Referred to as S11) (first weather strip) is attached. For ease of explanation, all weather strips described in FIGS. 2 and 3 are shaded. When the outer W / S 11 pays attention to one opening 1a, the outer W / S 11 has an annularly continuous structure along its peripheral edge, and is configured by connecting a plurality of elongated rubber members 12, 13, and 14 without gaps. .

  Specifically, one continuous weather strip (W / S) 12 is attached to the upper edge of the three openings 1a (FIG. 1) arranged in the traveling direction of the vehicle 1. Thus, by not providing a joint at W / S12 at the upper edge, it is possible to reliably prevent water from entering from the upper edge side of the opening 1a. As shown in FIG. 4, the W / S 12 has a drip rail portion 12 a that receives rain water that flows down toward the opening 1 a along the outer surface of the vehicle body, and a W / S on the trunk lid 5 side that will be described later. It has the seal part 12b which contacts.

  Band-shaped weather strips 13 extending downward from the W / S 12 at the upper edge are respectively attached to the columns between the two openings 1 a adjacent to each other in the traveling direction of the vehicle 1. The thickness of the W / S is designed to be the same as the thickness of the seal portion 12b of the W / S 12 at the upper edge. As shown in FIG. 6, the W / S 13 attached to the outer side surface of the pillar 21 in the vehicle width direction is formed of an elongated thin plate-like piece and is attached to each of the two adjacent openings 1a so as to be freely opened and closed. The lid 5 is also used to seal the front end portion and the rear end portion in the traveling direction.

  For example, the W / S attached to the rear edge along the vehicle traveling direction of the trunk lid 5 on the left side in the drawing shown in FIG. 6 is brought into contact with the left half portion in the drawing of the W / S 13 on the vehicle body side, The W / S (not shown in FIG. 6) attached to the front edge of the trunk lid 5 on the right side in the drawing is brought into contact with the right half of the W / S 13 on the vehicle body side in the drawing. Thereby, rainwater entering from the gap between two trunk lids 5 adjacent to each other along the traveling direction of the vehicle 1 can flow downward along the approximate center of the W / S 13 of the column 21.

  In addition, a band-like W / S 14 arranged so as to connect the lower ends of the W / S 13 of the pillar 21 described above is attached to the lower end edge of each opening 1a. This W / S 14 also has the same thickness as the other W / S 12b and 13. As shown in FIG. 7, the lower end of the W / S 13 attached to the column 21 extends to the lower edge of the vehicle body, and the W / S 14 extending along the lower edge of the opening 1a extends to the lower edge. It arrange | positions so that the side part of W / S13 may be contacted. Thus, by extending the W / S13 of the column to the lower edge of the vehicle body beyond the W / S14 of the lower end edge, the dimensional accuracy in the longitudinal direction of the W / S13 can be lowered, and the mounting operation of the W / S13 is easy. Can be. Further, by extending the W / S 13 of the column 21 to the lower edge of the vehicle body, rainwater transmitted through the gap of the trunk lid 5 can be allowed to flow as it is to the lower edge of the vehicle body.

  Conversely, when the W / S 14 provided at the lower edge is formed of a single member in the same manner as the W / S 12 at the upper edge, the dimensional accuracy of the column 21 in the longitudinal direction of the W / S 13 is increased. It is necessary to eliminate the gap between the lower end of the W / S 14 and the upper end of the W / S 14. That is, if there is a gap in this part, rainwater that has flowed downward through W / S 13 may blow into the trunk room side, which may impair the waterproof function.

  On the other hand, as shown in FIG. 2, on the inner surface of the trunk lid 5 that opens and closes the opening 1a of the trunk room, an annular lid that adheres in an airtight manner to the outer W / S11 connected with the W / S 12, 13, and 14 described above. A side weather strip 15 (hereinafter referred to as a lid side W / S 15) (second weather strip) is attached. The lid side W / S 15 is attached to a position where the trunk lid 5 is hermetically adhered to the outer W / S 11 when the trunk lid 5 is disposed at the closed position, that is, a peripheral edge portion of the trunk lid 5. As shown in FIGS. 4, 5, and 6, the lid side W / S 15 is formed of a rubber member having a hollow shape with a substantially heart-shaped cross section and having four sides joined together without a gap.

  Further, as shown in FIG. 2, an annular rib 22 projects from the inner surface of the trunk lid 5 at a position close to the inner periphery of the lid side W / S 15. That is, the trunk lid 5 is generally configured by attaching the ribs 22 to the inner surface of the lid that forms the outer shell of the vehicle body. The ribs 22 protrude at the same height from the inner surface of the trunk lid 5 toward the inner side in the vehicle width direction, as shown in cross sections in FIGS.

  Furthermore, the peripheral edge of the opening 1a close to the inner periphery of the outer W / S11 described above is substantially adhered to the rib 22 described above in an airtight state in a state where the trunk lid 5 is disposed at a position closing the opening 1a. A U-shaped body-side inner weather strip 16 (hereinafter simply referred to as an inner W / S 16) (third weather strip) is attached. As shown in FIGS. 4 and 6, the inner W / S 16 is attached to the peripheral edge of the opening 1 a via the bracket 23, and is deeper inward in the vehicle width direction than the outer W / S 11 described above. Placed in position. The inner W / S 16 has a hollow structure with a substantially annular cross section, and comes into close contact with the rib 22 formed of a rigid body.

  More specifically, as shown in FIG. 3, the inner W / S 16 includes an upper end edge of the opening 1a, a front edge of the opening 1a along the traveling direction of the vehicle 1, and a vehicle traveling direction of the opening 1a. And has a continuous monolithic structure along the rear edge. In other words, the inner W / S 16 does not have a portion along the lower edge of the opening 1a.

Hereinafter, the function of the waterproof structure of the trunk lid described above will be described.
With the trunk lid 5 placed at the closed position and the opening 1a of the trunk room 50 closed, the outer W / S11 and the lid side W / S15 are in close contact with each other and the inner W / S16 is in close contact with the ribs 22. Close contact with. Assuming that water enters from the peripheral edge of the trunk lid 5 in this state, most of the water enters the trunk room 50 due to the close contact between the outer W / S 11 and the lid side W / S 15 each having a continuous annular structure. Never do.

  In particular, according to the present embodiment, since the lid side W / S15 is brought into contact with the outer side W / S11 of the vehicle body, the vehicle body having a relatively large monocoque structure such as a bus is twisted relatively greatly during traveling. However, the contact surfaces of the W / S 11 and 15 do not shift. That is, when the vehicle body is twisted, the W / Ss 11 and 15 that are in contact with each other are elastically deformed, so that the contact surface between them is not displaced. For this reason, since a gap does not occur on the contact surface, it is possible to reliably prevent a problem that water enters.

  Even if water enters through the contact surface between the outer W / S11 and the lid side W / S15 described above, the inner W / S16 described above prevents water from entering the trunk room 50. At this time, the water sealed by the inner W / S 16 flows downward along the outer side of the rib 22 as shown in FIGS. 4 and 6, and is guided to the lower edge 30 of the opening 1a shown in FIG. . Needless to say, there is almost no water reaching this inner W / S16.

  As shown in FIG. 7, rib-shaped protrusions 31 that continuously extend over substantially the entire length of the opening 1 a of the trunk room 50 project from the lower edge 30. The protrusion 31 is formed by processing an aluminum plate 32 shown in FIG. 5, and protrudes upward from the lower end edge 30 of the opening 1a. The protruding portion 31 is disposed at a position deeper inward in the vehicle width direction than the seal portion by the inner W / S 16 described above, and the water sealed by the inner W / S 16 is blocked by the protruding portion 31 to be inside the trunk room 50. It is designed to prevent entry into the door.

  Further, as shown in FIG. 5, the lower end edge of the opening 1 a extending outward in the vehicle width direction of the protrusion 31 forms an inclined surface 33 slightly inclined downward toward the outer side in the vehicle width direction. . That is, the water blocked by the protrusion 31 is discharged to the outside of the vehicle 1 along the inclined surface 33. In addition, W / S14 of the lower end edge part of outer W / S11 mentioned above is affixed on the vehicle width direction outer side surface of the aluminum plate 22 in which this projection part 31 and the inclined surface 33 were formed. Further, since the water flowing along the inclined surface 33 is blocked by the outer W / S 11 and the lid side W / S 15 when the trunk lid 5 is closed, the water is discharged to the outside when the trunk lid 5 is opened.

  By the way, as a waterproof structure of the trunk lid 5, other structures such as a door handle 7 (FIG. 1), a road lamp 8 (FIG. 1), a reflector 9 (FIG. 1) and the like provided outside the trunk lid 5 are provided. It is also necessary to consider the intrusion of water from a slight gap in the attachment part of the object. The water that has entered from such a structure flows inside the annular rib 22 that protrudes from the inner surface of the trunk lid 5. Although this type of water does not have to worry about flowing in large quantities, it is not desirable to flow into the trunk room 50. For this reason, in the present embodiment, a structure is adopted in which the waterproof film 42 is attached to the inside of the rib 22 and the trunk room trim 44 is attached thereon.

  Further, as another method for enhancing the waterproof function of the trunk lid 5, a method of reducing the relative positional deviation between the opening 1a on the vehicle body side and the trunk lid 5 is conceivable. In the present embodiment, the trunk lid 5 is made of aluminum as a countermeasure. For example, when the trunk lid 5 is formed by FRP, it is known that the trunk lid 5 is distorted by heat in the painting process, and this distortion can be almost eliminated by forming the trunk lid 5 with aluminum. .

  As described above, according to the present embodiment, it is possible to almost completely prevent water from entering the trunk room 50 through the trunk lid 5, and the luggage accommodated in the trunk room 50 is in the middle of traveling of the vehicle 1. There is no worry about getting wet. In particular, the waterproof structure of the present embodiment is suitable for a trunk lid of a vehicle having a monocoque vehicle body such as a bus, and can cope with the twist of the vehicle body.

  Note that the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. Various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the above-described embodiments. For example, you may delete some components from all the components shown by embodiment mentioned above.

  For example, in the above-described embodiment, the case where only the lid side W / S is provided corresponding to the outer side W / S on the vehicle body side is described, but not limited to this, the case corresponds to the inner W / S on the vehicle body side. Further W / S may be added to the trunk lid side.

1 is an external perspective view of a sightseeing bus provided with a waterproof structure for a trunk lid according to an embodiment of the present invention. The external view of the inner surface side of the trunk lid in the side surface of the bus | bath of FIG. FIG. 3 is an external view showing the vicinity of the opening on the vehicle body side with the trunk lid removed. FIG. 4 is a partially enlarged cross-sectional view of the trunk lid near the upper edge along line IV-IV in FIG. 1. The partial expanded sectional view which cut | disconnected the lower end edge part of the trunk lid along line VV of FIG. The partial expanded sectional view which cut | disconnected the back edge part of the trunk lid along line VI-VI of FIG. The partial expansion external appearance perspective view which looked at the lower end of the partition between trunk rooms from the arrow VII direction of FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Sightseeing bus, 1a ... Opening part, 2 ... Swing door, 3 ... Driver's seat, 5 ... Trunk lid, 11 ... Outer W / S, 15 ... Lid side W / S, 16 ... Inner W / S, 21 ... Pillar , 22 ... Ribs, 50 ... Trunk room.

Claims (6)

An annular first weatherstrip continuously attached over the entire circumference of the peripheral edge of the trunk opening provided on the side of the vehicle body;
An annular second weather strip attached to a position where the trunk lid is in an airtight state when the trunk lid is disposed at a closed position at an inner peripheral edge of the trunk lid that opens and closes the opening; ,
The first weather strip is attached to the first weather strip in the vicinity of the inner periphery of the first weather strip so that the rib protrudes from the inner surface side of the trunk lid in an airtight state in the vicinity of the inner periphery of the second weather strip. A third weatherstrip attached to the car body along,
A waterproof structure for a trunk lid, comprising:   The third weather strip is substantially continuous along the upper edge of the opening, the front edge of the opening along the vehicle traveling direction, and the rear edge of the opening along the vehicle traveling direction. 2. The trunk lid waterproof structure according to claim 1, wherein the waterproof structure is a U-shape.   A rib-like protrusion that extends continuously from the third weather strip at the lower end edge of the opening in the vehicle width direction and substantially extends over the entire length of the lower end edge and protrudes upward from the lower end edge; The waterproof structure for a trunk lid according to claim 2, comprising:   The waterproof structure according to claim 3, wherein a lower end edge of the opening is inclined downward from the rib toward the outside in the vehicle width direction.   2. The trunk lid waterproof structure according to claim 1, wherein the trunk lid is made of aluminum.   The waterproof structure for a trunk lid according to claim 1, wherein the vehicle body has a relatively large monocoque structure such as a bus.

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