JP5055017B2 - Car door drainage structure - Google Patents

Description

  The present invention relates to a drainage structure for an automobile door, and more particularly to a drainage structure that effectively uses a so-called parting seal provided as a seal member between a lower edge of the door and a side sill portion on the body side.

  As a drainage structure for this type of automobile door, for example, as described in Patent Document 1, a hollow parting seal that seals between the lower edge portion of the door body and the side sill portion on the body side is provided along the longitudinal direction. After the water drained from the door body is guided to the hollow part of the parting seal so as to use the hollow part of the parting seal as a water channel, the parting seal is drained to the outside from both longitudinal ends of the parting seal. There is something like that.

Moreover, as a drainage structure of an open car, for example, as described in Patent Document 2, water flowing down a front weather strip disposed along the front pillar portion is drained outside the vehicle through a drain hole formed in the side sill portion. There is something to do.
JP-A-8-142673 JP-A-10-119585

  However, in the technique described in Patent Document 1, since water drained from both ends in the longitudinal direction of the parting seal is drained to the outside of the vehicle through the side sill portion, the trace of the water flow is a streak-like trace. It remains in the side sill portion as it is, and the appearance is impaired by the stain, which is not preferable.

  Further, on the premise of the technique described in Patent Document 1, when draining outside the vehicle through a drain hole formed in the side sill portion as described in Patent Document 2, a parting seal is disposed on the door side. As long as it is, it is difficult to match the drain outlet from the parting seal with the drain hole on the side sill part, and there is no change in that some water is still drained outside the car through the side sill part. Still, the appearance will be damaged by the pollution.

  The present invention has been made paying attention to such a problem, and even if it is a drainage structure that effectively uses a seal member that controls the seal between the door and the side sill part, water can be transferred down the side sill part. It is an object of the present invention to provide a drainage structure that prevents the appearance of the side sill portion from being damaged by fouling.

According to the first aspect of the present invention, as a drainage structure for an automobile door, a sealing member having a hollow shape whose outer surface is in elastic contact with the lower edge of the door when the door is closed and whose longitudinal ends are closed is used as a side sill on the body side. A drainage groove that is provided along the longitudinal direction of the portion and that serves as a flow path for water drained from the door-side drainage hole at the lower edge of the door is provided along the longitudinal direction of the upper surface of the seal member. Water stop walls are formed at both ends in the longitudinal direction so as to fill a space corresponding to the drainage groove between the seal member and the door in the end view, and further, the drainage groove is formed in a part of the seal member in the longitudinal direction. A water drain hole is provided for guiding the water to a body side drain hole formed in the side sill portion . When the door is closed, the sealing member and the surface outside the vehicle with respect to the drainage groove and the part inside the vehicle with respect to the drainage groove and the water stop wall are in elastic contact with the lower edge of the door, respectively, and sealed between the door It is characterized in that it is designed to isolate and form the ridge-shaped drainage groove space .

More specifically, as described in claim 2 , the seal member includes a hollow general portion formed by extrusion molding and a terminal portion integrally formed by molding at both longitudinal ends thereof. It is desirable in terms of formability that a water blocking wall is formed in the terminal portion together with a drain hole.

In addition, if the drain hole is formed also in the general part in addition to the drain hole of the terminal part as described in claim 3, the hollow part of the seal member can also be effectively used as the drainage groove.

Further, as described in claim 4, if the cantilever type cover lip that covers the upper surface of the drainage groove is provided on the sealing member, the drainage groove becomes inconspicuous when the door is opened, and the appearance is good. .

  Therefore, in at least the first aspect of the invention, the water drained from the door-side drain hole at the lower edge of the door flows through the drain groove on the upper surface of the seal member and is then formed on the body sill portion from the drain hole. It flows into the inside of the side sill part through the side drain hole. And the water which flowed in into the side sill part is drained out of the vehicle from another drain hole formed on the lower surface of the side sill part, for example. Thereby, since the water drained from the door side drain hole at the lower edge of the door does not flow down the outer surface of the side sill portion, no appearance of the side sill portion is generated and the appearance is not impaired.

According to the first aspect of the present invention, the water drained from the door-side drain hole at the lower edge of the door does not flow down along the outer side surface of the side sill portion, and the appearance of the side sill portion is prevented from being damaged. The following effects (A) to (D) are obtained.

(A) Since both ends in the longitudinal direction of the hollow seal member are closed, the door closing performance is not affected, and air does not flow through the hollow portion of the seal member. The occurrence of wind noise can be prevented in advance.

(A) By forming the water blocking walls at both ends in the longitudinal direction of the seal member, water does not flow out of the drainage groove, and the drainage performance by the drainage groove is further improved.

(C) Since both sides of the sealing member sandwiching the drainage groove are in elastic contact with the lower edge of the door when the door is closed, water leakage from the drainage groove can be reliably prevented, and the impact between the sealing member and the door can be prevented. Since the contact has a so-called double seal structure, the sound insulation at the portion is improved, and in particular, there is an advantage that the sound can be prevented from entering from the door side drain hole.

(D) Since the water blocking wall is formed so as to fill the space corresponding to the drainage groove between the seal member and the door in the end view of the seal member, the flow of air through the drainage groove may be blocked. This also improves the sound insulation.

According to the second aspect of the present invention, the end portions are integrally formed by molding at both ends in the longitudinal direction of the extruded hollow general portion of the seal member, and the water stops together with the drain holes at the end portions. Since the wall is formed, the drain hole and the water blocking wall can be simultaneously formed when the terminal portion is molded, and the moldability is improved.

According to the third aspect of the present invention, the drainage hole is formed in the general part in addition to the drainage hole of the terminal part, and the hollow part of the seal member is effectively used as a part of the drainage groove. Since it has been made, the drainage performance is further improved.

According to the invention described in claim 4, since the cover member is provided with the cover lip that covers the upper surface of the drainage groove, the drainage groove does not stand out even when the door is opened, and the appearance is good. .

  1-6 is a figure which shows more concrete embodiment of the drainage structure of the door for motor vehicles based on this invention.

  As shown in FIGS. 1 and 2, a lower edge of the door opening on the body 1 side that will receive the doors 2 on the front side and rear side of the automobile, more specifically, a side sill portion 3 is formed. A substantially rectangular hollow parting seal 4 is disposed along the longitudinal direction of the stepped portion on the outer side surface of the side sill outer panel 3a. The parting seal 4 is fixed to the side sill outer panel 3a by a clip 5. When the door is closed, the lower edge of the door 2 elastically contacts the outer side surface 4a of the parting seal 4 to seal the outside of the vehicle interior. Become.

  As shown in FIGS. 3 and 4, the parting seal 4 has a length covering almost the entire length of the lower edge of the door 2, and is a general portion (extruded) extruded as having a uniform sectional shape shown in FIG. 4A and terminal portions (molded portions) 4B which are joined and formed by the joining wire 6 by molding so that both ends of the general portion 4A are smoothly connected to each other. The end face of 4B is closed by a lid-like wall portion 14 (see FIG. 6) described later.

  As shown in FIG. 2 (B), the parting seal 4 is formed with a concave drainage groove 7 over its entire length so that its upper surface is depressed even in a free state (non-elastic contact state of the door 2). As shown in (A), when the door 2 is elastically contacted with the parting seal 4, the degree of depression of the drainage groove 7 is increased due to its elastic deformation, and the convex ridges on both sides of the drainage groove 7 are sandwiched. 4b and 4c come into elastic contact with the lower edge of the door 2. In addition, since one or a plurality of door-side drain holes 8 are formed in a part of the door inner panel 2a which is the lower edge of the door 2, in the door closed state as shown in FIG. The door side drain hole 8 is set so as to coincide with the position of the drain groove 7.

  As described above, when the door is closed, the outer side surface 4a of the parting seal 4 and the two ridge lines 4b and 4c are in elastic contact with the door 2 to form a so-called double or triple multiple seal structure. As a result, the sealing performance inside and outside the vehicle interior is improved, and the drainage groove 7 becomes an independent groove-like space, and water leakage from the drainage groove 7 can be prevented in advance.

  As shown in FIGS. 4 and 5, the upper drain hole 9 is formed in a portion corresponding to both terminal portions 4 </ b> B of the drainage groove 7 so as to pass through the terminal portion 4 </ b> B itself while opening at the bottom surface of the drainage groove 7. A lower drain hole 10 is formed, and a relatively short drain pipe 11 is formed in the lower drain hole 10 so as to extend. The drain pipe 11 is formed on the upper body formed in the side sill outer panel 3a. It is inserted into the side drain hole 12. A lower body-side drain hole 13 is also formed in the lower surface of the side sill outer panel 3a.

  Also, as shown in FIGS. 4 and 6, the end faces of both terminal portions 4B are integrally formed with a lid-like wall portion 14 (the hatched portion in FIG. 6) having the same cross-sectional shape as itself. The hollow portion 15 is closed, and a water blocking wall 16 (a portion hatched with cross hatching in FIG. 6) is formed integrally with the lid-like wall portion 14 to match the shape of the drainage groove 7. The water blocking wall 16 is located on the vehicle exterior side from the ridgeline portion 4b on the vehicle exterior side so as to fill a space corresponding to the drainage groove between the terminal portion 4B and the door inner panel 2a on the door 2 side in the end view of the terminal portion 4B. It is formed so as to straddle the ridgeline part 4c, and in the closed state of FIG. 6, the upper surface of the water blocking wall 16 is in elastic contact with the door inner panel 2a together with the ridgeline parts 4b and 4c. As a result, in the closed state of the figure, a so-called bowl-shaped drainage groove 7 is formed between the door 2 and the parting seal 4 and is partitioned by the ridges 4b and 4c and the water blocking wall 16. become.

  Therefore, according to the drainage structure configured in this way, rainwater D or the like that inevitably entered the door 2 flows out from the door-side drainage hole 8, but the rainwater D is not separated from the party as shown in FIG. In addition to being collected by the drainage groove 7 on the upper surface of the ring seal 4 and flowing in the longitudinal direction of the drainage groove 7, as shown in FIG. 10 flows into the inside of the side sill portion 3 from the upper body side drain hole 12. And the rain water which flowed into the inside of the side sill part 3 is finally drained out of the vehicle from the lower body side drain hole 13.

  As described above, according to the present embodiment, the rainwater D and the like flowing out from the door-side drain hole 8 are received by the drain groove 7 on the upper surface of the parting seal 4, and then the upper drain hole 9 and the lower drain are removed. Since it flows into the inside of the side sill portion 3 through the hole 10, at least rainwater D or the like flowing out from the door side drain hole 8 does not flow down the outer surface of the side sill portion 3, and the side sill portion 3 is fouled. Otherwise, the appearance will not be impaired, and there are advantages as listed below.

  (A) Since the end surface of the terminal portion 4B is closed by the lid-like wall portion 14 at both ends of the parting seal 4, air does not flow through the hollow portion 15 of the parting seal 4, and wind noise is generated. It does not occur.

  (B) Since the drainage groove 7 is partitioned by the two ridge lines 4b and 4c and the two water blocking walls 16 at the front and rear, water does not flow out of the drainage groove 7 and drainage by the drainage groove 7 is achieved. Is very good.

  (C) Since the water blocking wall 16 is integrally formed with the lid-like wall portion 14, the upper water drain hole 9 and the lower water drain hole 10 on the terminal portion 4B formed by molding, the terminal portion 4B is formed into a mold. When molding, the drain holes 9 and 10 and the water blocking wall 16 can be molded at the same time, and the moldability is excellent.

  (D) Since the ridges 4b, 4c on both sides of the drainage groove 7 are in elastic contact with the lower edge of the door 2 when the door is closed, water leakage from the drainage groove 7 can be reliably prevented and the parting seal 4 Since the elastic contact between the door 2 and the door 2 has a so-called multiple seal structure, the sound insulation at the part is improved and the intrusion of sound from the door-side drain hole 8 can be suppressed.

  (E) Since the water blocking wall 16 is formed so as to fill a space corresponding to the drainage groove between the parting seal 4 and the door 2 in the end view of the terminal portion 4B, air flow in the drainage groove 7 is achieved. This can contribute to improving sound insulation.

  7 to 9 show a second embodiment of the drainage structure according to the present invention, and the same reference numerals are given to the parts common to the first embodiment.

  In the second embodiment, apart from the upper drain hole 9 opening in the drainage groove 7 in the terminal part 4B of the parting seal 4, a single or plural upper sides opening in the drainage groove 7 also in the general part 4A. A drain hole 19 is formed.

  Therefore, in the first embodiment, the rainwater D or the like that has flowed through the drainage groove 7 from the general part 4A side to the terminal part 4B side flows down downward from the upper drain hole 9 of the terminal part 4B for the first time. Thus, according to the second embodiment, as shown in FIGS. 7 and 8, a part of the rainwater D and the like is formed in the general part 4A in the course of the rainwater D and the like flowing through the drain groove 7 of the general part 4A. After flowing down into the hollow portion 15 from the upper drain hole 19 and substantially flowing the hollow portion 15 of the general portion 4A as a part of the drainage groove 7 to the end portion 4B side. Thus, as shown in FIG. 9, they join at the lower drain hole 10 and flow down into the side sill portion 3. This is because the hollow section 15 of the general section 4A is effectively used as a part of the drainage groove 7 so that the capacity for receiving rainwater D and the like of the drainage groove 7 is improved, and as a result, the drainage performance is further improved.

  10 to 13 show a third embodiment of the drainage structure according to the present invention, and the same reference numerals are given to the parts common to the first embodiment.

  As shown in FIGS. 10 and 11, in the third embodiment, a cover lip 17 is provided on the upper part of the drainage groove 7 of the parting seal 24 without impairing the function of the drainage groove 7. Specifically, a cantilevered cover lip 17 having a root portion at a position corresponding to the ridge line portion 4b on the vehicle inner side is formed so as to protrude toward the vehicle outer side so as to cover the upper surface of the drainage groove 7. The cover lip 17 covers the upper surface of the drainage groove 7 while leaving a slight gap G between the cover lip 17 and the ridgeline portion 4c on the outside of the vehicle in the free state (door open state) of FIG. When the door is closed, as shown in FIG. 5A, the door inner panel 2a is brought into elastic contact with the ridgeline portion 4b on the vehicle inner side which is the base portion, so that the cover lip 17 falls to the drainage groove 7 side.

  Further, as shown in FIG. 13, the hollow portion 15 is closed at the end face of the terminal portion 4B in the parting seal 24 by the lid-like wall portion 14 (the hatched portion in FIG. 13), while the ridgeline on the vehicle interior side A water blocking wall 16 (portion with cross-hatching in FIG. 13) is formed integrally with the lid-like wall portion 14 at a portion extending from the portion 4b to the ridge line portion 4c on the vehicle outer side. And although both the end surfaces of the longitudinal direction of the cover lip 17 are adjoining to the water stop wall 16, both the end surfaces of the cover lip 17 are not connected with the water stop wall 16, FIG. B) As can be seen from the comparison, the cover lip 17 alone can be smoothly raised and lowered.

  Therefore, according to the third embodiment, the cover lip 17 does not impair the original function of the drainage groove 7, and as shown in FIG. Since the cover lip 17 covers the upper surface of the drainage groove 7 leaving a gap G when opened, the recessed drainage groove 7 does not stand out, and the appearance when the door is opened is good.

  Here, in each of the above embodiments, the upper water drain hole 9 and the lower water drain hole 10 are formed in both end portions 4B of the parting seal 4 or 24. If the side drain hole 10 is formed in any one of the terminal portions 4B, the intended purpose can be achieved.

1 is a side view of an automobile to which a drainage structure according to the present invention is applied. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows 1st Embodiment of the waste_water | drain structure which concerns on this invention, (A) is the time of the door closing along the aa line | wire (including the aa line | wire of FIG. 4) and bb line of FIG. The principal part sectional drawing of FIG. 1, (B) is principal part sectional drawing at the time of the door opening of the figure (A). The schematic explanatory drawing of the whole parting seal shown in FIG. The principal part expansion perspective view of the parting seal shown in FIG. FIG. 5 is an essential part cross-sectional view taken along the line cc of FIG. 4. FIG. 5 is a cross-sectional view of a main part taken along the line dd in FIG. 4. It is a figure which shows 2nd Embodiment of the drainage structure which concerns on this invention, and is a principal part expansion perspective view of a parting seal. FIG. 8 is an essential part cross-sectional view taken along the line ee of FIG. 7. FIG. 8 is an essential part cross-sectional view taken along line ff in FIG. 7. It is a figure which shows 3rd Embodiment of the drainage structure which concerns on this invention, and is a principal part expansion perspective view of a parting seal. (A) is principal part sectional drawing at the time of the door closing along the gg line of FIG. 10, (B) is principal part sectional drawing at the time of the door opening of the same figure (A). FIG. 11 is an essential part cross-sectional view taken along the line hh of FIG. 10. FIG. 11 is an essential part cross-sectional view taken along line ii of FIG. 10.

Explanation of symbols

2 ... Door 2a ... Door inner panel 3 ... Side sill 3a ... Side sill outer panel 4 ... Parting seal (seal member)
4A ... General part 4B ... Terminal part 4a ... Outer side surface on the outside of the vehicle 4b ... Ridge part on the inside of the car 4c ... Ridge part on the outside of the car 7 ... Drainage groove 8 ... Drain side drain hole 9 ... Upper drain hole 10 ... Lower water Drain hole 12 ... Upper body side drain hole 13 ... Lower body side drain hole 14 ... Lid-like wall part 15 ... Hollow part 16 ... Water blocking wall 17 ... Cover lip 19 ... Upper drain hole 24 ... Parting seal ( Seal member)
D ... Rainwater

Claims (4)

When the door is closed, a seal member is provided along the longitudinal direction of the side sill portion on the body side so that the outer surface of the vehicle elastically contacts the lower edge of the door and is closed at both longitudinal ends .
A drainage groove serving as a flow path of water drained from the door-side drainage hole at the lower edge of the door is provided along the longitudinal direction on the upper surface of the seal member, and
A water stop wall is formed at both ends in the longitudinal direction of the seal member so as to fill a space corresponding to a drainage groove between the seal member and the door in the end view,
Furthermore, a drain hole is provided in a part of the longitudinal direction of the seal member to guide the water in the drain groove to the body side drain hole formed in the side sill portion ,
When the door is closed, the part of the seal member that is on the vehicle outer side of the drainage groove and the part on the vehicle inner side of the drainage groove and the water stop wall are respectively in elastic contact with the lower edge of the door and sealed between the doors. A drainage structure for an automobile door characterized in that a bowl-shaped drainage groove space is formed in isolation . The sealing member includes a hollow general portion formed by extrusion molding and a terminal portion integrally formed by molding at both ends in the longitudinal direction,
The drainage structure for an automobile door according to claim 1, wherein a water blocking wall is formed in the terminal portion together with a drain hole . Drainage structure of an automobile door according to claim 1 or 2, characterized in that the formation of the drain hole in the general section, in addition to the drainage hole of the terminal portion. The drainage structure for an automobile door according to any one of claims 1 to 3, wherein the seal member is provided with a cantilevered cover lip that covers an upper surface of the drainage groove .

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