Seal for automobile door

Abstract

The present invention discloses a seal for an automobile door. A portion of the roof side seal lip (34) on the pillar (P) side and a portion of the pillar side seal lip (43) on the roof (R) side are arranged with a gap in the vehicle interior and exterior direction when the door (110) is opened. The portion of the roof side seal lip (34) on the pillar (P) side is formed such that it gets closer to the portion of the pillar side seal lip (43) on the roof (R) side towards its end. When the door (110) is closed, the roof side seal lip (34) contacts the pillar side seal lip (43). The sealing performance is improved without affecting the appearance aesthetics.

Description

Technical Field

[0001] The present invention relates to a seal for a vehicle door, for example, for sealing a gap between a door mounted on a side of a vehicle and a vehicle body. Background Art

[0002] Hitherto, a seal for a vehicle door for sealing a gap between the door and a vehicle body panel has been provided on a door mounted on a side of a vehicle (for example, refer to Patent Documents 1 and 2). The seal of Patent Document 1 is provided on a peripheral portion of the door, and has a pillar side portion extending in the vertical direction along the peripheral portion of the door and a roof side portion extending in the vehicle front-rear direction along an upper edge portion of a window frame. The pillar side portion is composed of a pillar side base portion mounted on the door and a pillar side seal wall formed integrally with the pillar side base portion. In addition, similarly, the roof side portion is composed of a roof side base portion mounted on the door and a roof side seal wall formed integrally with the roof side base portion.

[0003] In Patent Document 1, the deformation of the seal when the door is closed is different between the pillar side portion and the roof side portion. That is, as shown in Figure 1 and FIG. 5 of Patent Document 1, at an upper end corner on the front side (hinge side) of a rear door, since the pillar side portion of the seal is pressed in the vehicle front-rear direction by a pillar of the vehicle body when the door is closed, the pillar side seal wall is bent and deformed in the front-rear direction. And since the roof side portion is pressed in the vehicle interior-exterior direction by a roof of the vehicle body when the door is closed, the roof side seal wall is collapsed and deformed in the vehicle interior-exterior direction.

[0004] In Patent Document 2, seal lips are provided in the pillar side portion and the roof side portion, respectively. The seal lip of the pillar side portion is a portion that elastically contacts a pillar of the vehicle body when the door is closed to obtain sealing performance, and the seal lip of the roof side portion is a portion that elastically contacts a roof of the vehicle body when the door is closed to obtain sealing performance. In addition, in Patent Document 2, since the seal lips of the pillar side portion and the roof side portion are arranged separately from each other in the vehicle interior-exterior direction, a water channel is formed between the above-mentioned seal lips, and a water channel cut-off wall for cutting off the water channel is formed between the seal lip of the pillar side portion and the seal lip of the roof side portion.

[0005] In Patent Document 3, the following phenomenon is described: As shown in FIG. 8, at the vehicle top portion, water that has entered an abutting portion between an opening edge portion of the vehicle body and a hollow seal portion directly drips downward when the door is opened, that is, a so-called rainwater dripping problem occurs. In Patent Document 3, the following configuration is described: In a section from the vehicle top portion through a corner portion to a quarter pillar portion, by using the same extrusion die head, the protruding shape is gradually changed, thereby preventing rainwater dripping and simultaneously achieving the purpose of reducing manufacturing costs and improving aesthetics.

[0006] Patent Document 1: Japanese Published Patent Gazette JP-A-2005-280410

[0007] Patent Document 2: Japanese Published Patent Gazette JP-A-9-240278

[0008] Patent Document 3: Japanese Published Patent Gazette JP-A-10-076847 SUMMARY OF THE INVENTION

[0009] -Technical Problem to be Solved by the Invention-

[0010] At the upper end corner on the rear side (locking side) of the front door, the same phenomenon as that of the seal in Patent Document 1 occurs: when the door is closed, the directions of deformation of the seal are different between the pillar side part and the roof side part. In this corner, an automotive body and door structure is mostly adopted in which the seal walls of both the pillar side part and the roof side part are bent and deformed in the vehicle interior and exterior direction, but sometimes an automotive body and door structure is also adopted in which the seal wall of the pillar side part is bent and deformed in the vehicle interior and exterior direction while the seal wall of the roof side part is bent and deformed in the vehicle up and down direction. In the above cases, like the seal in Patent Document 1, a method of making the pillar side seal wall and the roof side seal wall elastically contact the body respectively to obtain sealing performance can be considered. However, considering a situation where a high water pressure acts from the outside, such as when washing the car with high-pressure water, water may surge upward from the pillar side due to the water pressure and invade the vehicle interior side, resulting in the inability to meet the sealing requirements.

[0011] Like the seal in Patent Document 2, a method of respectively providing seal lips in the pillar side part and the roof side part and making the above seal lips elastically contact the body respectively to further improve the sealing performance can be considered.

[0012] However, as described above, since the deformations generated in the pillar side part and the roof side part of the seal are different when the door is closed, the seal lips of the pillar side part and the roof side part cannot be continuously extended, and it is necessary to separately arrange the seal lips of the pillar side part and the roof side part in the vehicle interior and exterior direction.

[0013] In this way, since a water passage will be formed between the seal lip of the pillar side part and the seal lip of the roof side part, in Patent Document 2, a water passage cut-off wall for connecting the seal lip of the pillar side part and the seal lip of the roof side part is formed.

[0014] However, since the water channel cut-off wall as shown in Patent Document 2 is integrally connected to both the sealing lip of the roof side portion arranged inside the vehicle compartment and the sealing lip of the pillar side portion arranged outside the vehicle compartment, when the vehicle door is closed, the squeezing pressure exerted on the sealing lip of the roof side portion by the vehicle door will be directly transmitted to the sealing lip of the pillar side portion through the water channel cut-off wall, resulting in abnormal bending, such as squeezing the upper end portion of the sealing lip of the pillar side portion outwardly of the vehicle compartment or, conversely, pulling the upper end portion of the sealing lip of the pillar side portion inwardly of the vehicle compartment. As a result, a gap will be generated in a part between the sealing lip of the pillar side portion and the outer surface of the vehicle body, which may sometimes affect the appearance or the sealing performance.

[0015] In addition, in the case of a seal as in Patent Document 3, in order to prevent rainwater dripping, when a structure in which the protruding length of the protrusion is changed by variable extrusion molding needs to be applied, if the above structure is adopted when the corner is gentle and the change in the bending deformation direction of the hollow seal portion is also small, no problem will occur.

[0016] However, as described above, since the deformations generated in the pillar side portion and the roof side portion of the seal are different when the vehicle door is closed, it is impossible to continuously extend the sealing lip of the pillar side portion and the sealing lip of the roof side portion, and it is necessary to separately arrange the sealing lip of the pillar side portion and the sealing lip of the roof side portion in the vehicle compartment interior and exterior direction.

[0017] In this way, since a gap will be generated between the sealing lip of the pillar side portion and the sealing lip of the roof side portion, at the corner, water will infiltrate into the contact portion (so-called triangular gap portion) between the vehicle body opening edge portion and the hollow seal portion, and the rainwater dripping phenomenon cannot be prevented.

[0018] The present invention is completed to solve the above technical problems, and its object is to improve the sealing performance without affecting the appearance.

[0019] - Technical solution for solving technical problems -

[0020] In order to achieve the above object, an invention in the first aspect is a seal for an automobile door, which is installed on the upper edge portion and the longitudinal edge portion of the window frame of the automobile door. The longitudinal edge portion extends downward from the end portion in the longitudinal direction of the upper edge portion. The seal for the automobile door is characterized in that it includes a roof side portion extending along the vehicle front-rear direction along the upper edge portion of the frame and a pillar side portion extending along the vertical direction along the longitudinal edge portion of the frame. The roof side portion has a roof side base portion and a roof side sealing wall. The roof side base portion is installed on the upper edge portion of the frame. The roof side sealing wall is integrally formed with the roof side base portion and is elastically in contact with the roof of the vehicle body in a state of being deformed by being pressed downward by the roof of the vehicle body when the automobile door is closed. The pillar side portion has a pillar side base portion and a pillar side sealing wall. The pillar side base portion is installed on the longitudinal edge portion of the frame. The pillar side sealing wall is integrally formed with the pillar side base portion and is elastically in contact with the pillar in a state of being deformed by being pressed outward by the pillar of the vehicle body when the automobile door is closed. A roof side sealing lip is formed on the outer surface of the roof side sealing wall. The roof side sealing lip is elastically in contact with the roof when the automobile door is closed and is formed to protrude outward from the roof side sealing wall and continuously extend in the vehicle front-rear direction to the outer surface of the upper end of the pillar side sealing wall. A pillar side sealing lip is formed on the outer surface of the pillar side sealing wall. The pillar side sealing lip is elastically in contact with the pillar when the automobile door is closed and is formed to protrude outward from the pillar side sealing wall and continuously extend in the vertical direction to the outer surface of the roof side sealing wall. The pillar side portion of the roof side sealing lip and the roof side portion of the pillar side sealing lip are arranged within a range where they overlap when viewed from the vehicle interior-exterior direction and are spaced apart in the vehicle interior-exterior direction so as not to contact each other when the automobile door is opened. When the automobile door is closed, the pillar side portion of the roof side sealing lip contacts the roof side portion of the pillar side sealing lip.

[0021] According to this configuration, when the automobile door is closed, the roof side sealing wall and the roof side sealing lip are elastically in contact with the roof, and the pillar side sealing wall and the pillar side sealing lip are elastically in contact with the pillar. Since the roof side sealing wall is deformed by being pressed downward by the roof and the pillar side sealing wall is deformed by being pressed outward by the pillar, the deformations of the roof side sealing wall and the pillar side sealing wall are different. At this time, since the roof side sealing lip provided on the roof side sealing wall and the pillar side sealing lip provided on the pillar side sealing wall are spaced apart in the vehicle interior-exterior direction so as not to contact each other when the automobile door is opened, in order to cope with the different deformations of the roof side sealing wall and the pillar side sealing wall, the roof side sealing lip and the pillar side sealing lip can be deformed or displaced, improving the sealing performance.

[0022] In addition, since the part of the roof side seal lip on the pillar side and the part of the pillar side seal lip on the roof side are arranged with a gap in the vehicle interior-exterior direction so as not to contact each other when the vehicle door is opened, even if they contact each other when the vehicle door is closed, they will not be squeezed outward or pulled inward. In this way, it is difficult to generate a gap between the roof side seal lip and the outer surface of the vehicle body, and the appearance aesthetic degree is better.

[0023] Moreover, since the part of the roof side seal lip on the pillar side contacts the part of the pillar side seal lip on the roof side when the vehicle door is closed, it is possible to suppress water from infiltrating between the part of the roof side seal lip on the pillar side and the part of the pillar side seal lip on the roof side.

[0024] The invention of the second aspect is characterized in that: the pillar side seal lip is arranged closer to the vehicle interior side than the roof side seal lip, and the part of the roof side seal lip on the pillar side is bent in such a way that it gets closer to the vehicle interior side as it approaches its end.

[0025] That is, when a high water pressure acts from the outside, water sometimes surges upward along the pillar side seal lip. In this case, since the part of the roof side seal lip on the pillar side is bent in such a way that it gets closer to the vehicle interior side as it approaches its end and contacts the pillar side seal lip when the vehicle door is closed, it is possible to suppress the water surging upward along the pillar side seal lip from infiltrating into the vehicle interior side.

[0026] In addition, from the roof to the pillar, even if a so-called triangular gap is generated in the elastic contact part of the seal wall with respect to the vehicle body, the seal lip can continuously contact the outer side part of the vehicle of this triangular gap, so water will not infiltrate and accumulate in the triangular gap part. As a result, it is possible to prevent the occurrence of rain dripping phenomenon.

[0027] The invention of the third aspect is characterized in that: when the vehicle door is closed, the end part of the roof side seal lip on the pillar side contacts the surface of the pillar side seal lip facing the outside of the vehicle.

[0028] According to this configuration, since the end part of the roof side seal lip on the pillar side abuts against the surface of the pillar side seal lip facing the outside of the vehicle when the vehicle door is closed, the sealing performance between the roof side seal lip and the pillar side seal lip is further improved.

[0029] The invention of the fourth aspect is characterized in that: the protruding amount of the part of the roof side seal lip on the pillar side protruding from the roof side seal wall becomes smaller as it approaches its end.

[0030] According to this configuration, since the end part of the roof side seal lip on the pillar side can contact the surface of the pillar side seal lip facing the outside of the vehicle without exerting force when the vehicle door is closed, the sealing performance between the roof side seal lip and the pillar side seal lip is further improved.

[0031] The invention of the fifth aspect is characterized in that: the roof side sealing lip protrudes upward from the roof side sealing wall and is inclined in such a manner that it gets closer to the outside of the vehicle compartment as it goes upward.

[0032] According to this configuration, when the roof contacts the roof side sealing lip from the inside of the vehicle compartment when the vehicle door is closed, the roof side sealing lip can be reliably tilted and deformed to elastically contact the roof.

[0033] - Effects of the Invention -

[0034] According to the present invention, the pillar-side portion of the roof side sealing lip and the roof-side portion of the pillar side sealing lip are arranged with a gap along the inside-outside direction of the vehicle compartment so as not to contact each other when the door is open. The pillar-side portion of the roof side sealing lip is formed to get closer to the roof-side portion of the pillar side sealing lip as it goes toward its end, and contacts the roof-side portion of the pillar side sealing lip when the door is closed. Therefore, the sealing performance can be improved without affecting the appearance beauty. Description of the Drawings

[0035] Figure 1 is a left view of a vehicle including a seal for a vehicle door according to an embodiment of the present invention;

[0036] Figure 2 is a side view of the left front door seal as viewed from the outside of the vehicle compartment;

[0037] Figure 3 is a view of the upper rear side of the left front door seal as viewed from the inside of the vehicle compartment;

[0038] Figure 4A is a sectional view, corresponding to a sectional view taken along line IV-IV of Figure 3 and shows the installation state of the left front door seal on the front door;

[0039] Figure 4B is a view corresponding to Figure 4A when the front door is closed;

[0040] Figure 5A is a sectional view, corresponding to a sectional view taken along line V-V of Figure 3 and shows the installation state of the left front door seal on the front door;

[0041] Figure 5B is a view corresponding to Figure 5A when the front door is closed;

[0042] Figure 6A is a sectional view, corresponding to a sectional view taken along line Figure 3A cross-sectional view taken along line VI-VI, showing the installation state of the front door seal on the left front door;

[0043] Figure 6B is equivalent to when the front door is closed Figure 6A of the figure;

[0044] Figure 7A is a cross-sectional view, equivalent to a cross-sectional view taken along line VII-VII of Figure 3 showing the installation state of the front door seal on the left front door;

[0045] Figure 7B is equivalent to when the front door is closed Figure 7A of the figure;

[0046] Figure 8A is a cross-sectional view, equivalent to a cross-sectional view taken along line VIII-VIII of Figure 3 showing the installation state of the front door seal on the left front door;

[0047] Figure 8B is equivalent to when the front door is closed Figure 8A of the figure.

[0048] -Symbol Explanation-

[0049] 1 - Front door seal (automobile door seal); 1H - Rear side mold part; 30 - Roof side part; 31 - Roof side base; 32 - Roof side seal wall; 34 - Roof side seal lip; 40 - Pillar side part; 41 - Pillar side base; 42 - Pillar side seal wall; 43 - Pillar side seal lip; 110 - Front door; 113 - Window frame; 113a - Front longitudinal edge part of the frame; 113b - Upper edge part of the frame; 113c - Longitudinal edge part of the frame. Detailed Embodiment

[0050] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. It should be noted that the following description of the preferred embodiments is essentially only an example and is not intended to limit the present invention, its application object, or its use.

[0051] Figure 1The left view of a vehicle 100 including a seal for an automotive door according to an embodiment of the present invention. On the left and right sides of the vehicle 100, a front door 110 and a rear door 210 that can be opened and closed are respectively installed. The front door 110 has a door body portion 111, a front door glass 112, and a window frame 113 that functions as a window frame for holding the front door glass 112. The door body portion 111 of the front door 110 is installed on a front pillar (not shown) of the vehicle body through a hinge (not shown), and the hinge is configured to be rotatable about a rotation axis extending in the vertical direction. In addition, the rear door 210 is the same as the front door 110, having a door body portion 211, a rear door glass 212, and a window frame 213 that functions as a window frame for holding the rear door glass 212. The door body portion 211 of the rear door 210 is installed on a middle pillar (not shown) through a hinge (not shown), and the hinge is configured to be rotatable about a rotation axis extending in the vertical direction.

[0052] It should be noted that in the description of this embodiment, the front side of the vehicle is abbreviated as the front, and the rear side of the vehicle is abbreviated as the rear. In addition, the outer side in the vehicle width direction is called the outside of the vehicle compartment, and the inner side in the vehicle width direction is called the inside of the vehicle compartment.

[0053] The window frame 113 of the front door 110 has a front frame longitudinal side portion 113a that extends upward and rearward from the front end portion on the upper side of the door body portion 111, a frame upper side portion 113b that extends rearward from the upper end portion of the front frame longitudinal side portion 113a, and a frame longitudinal side portion 113c that extends downward from the rear end portion (end portion in the length direction) of the frame upper side portion 113b to the rear end portion on the upper side of the door body portion 111.

[0054] The window frame 213 of the rear door 210 has a front frame longitudinal side portion 213a that extends upward from the front end portion on the upper side of the door body portion 211, a frame upper side portion 213b that extends rearward from the upper end portion of the front frame longitudinal side portion 213a, and a frame longitudinal side portion 213c that extends downward from the rear end portion (end portion in the length direction) of the frame upper side portion 213b to the rear end portion on the upper side of the door body portion 211. A seal (not shown) is also installed on the rear door 210 in the same manner as on the front door 110.

[0055] (Overall structure of the seal for the front door)

[0056] Figure 2FIG. 0 is a view of the left front door seal 1 as observed from the outside of the vehicle body. The left front door seal 1 is formed in a ring shape corresponding to the outer shape of the left front door 110, and has an upper extrusion portion 1A extending in the front-rear direction along the upper edge portion 113b of the frame, a rear longitudinal edge extrusion portion 1C extending in the up-down direction along the longitudinal edge portion 113c of the frame to the vicinity of the lower end portion of the door body portion 111, a lower extrusion portion 1D extending in the front-rear direction along the lower end portion of the door body portion 111, and a front longitudinal edge extrusion portion 1E extending in the up-down direction along the front end portion of the door body portion 111. The upper extrusion portion 1A, the rear longitudinal edge extrusion portion 1C, the lower extrusion portion 1D, and the front longitudinal edge extrusion portion 1E are extrusion portions formed by an extrusion molding method in which an elastic material is extruded from a die (not shown) and molded, and each has the same cross-sectional shape between the two ends in the length direction.

[0057] Moreover, the left front door seal 1 has a front side mold portion 1F provided between the front end portion of the upper extrusion portion 1A and the upper end portion of the front longitudinal edge extrusion portion 1E, and a rear side mold portion 1H provided between the rear end portion of the upper extrusion portion 1A and the upper end portion of the rear longitudinal edge extrusion portion 1C.

[0058] The front door seal 1 is mounted at a plurality of positions separated in the length direction on the window frame 113 and the door body portion 111. Examples of the mounting members of the front door seal 1 include, but are not limited to, clamps, double-sided tapes, etc., and various mounting members can be used. In this example, the rear side mold portion 1H is mounted on the upper edge portion 113b and the longitudinal edge portion 113c of the frame, the upper extrusion portion 1A is mounted on the upper edge portion 113b of the frame, the rear longitudinal edge extrusion portion 1C is mounted on the longitudinal edge portion 113c of the frame, and the lower extrusion portion 1D is mounted on the lower end portion of the door body portion 111.

[0059] The intersection line between the front longitudinal edge extrusion portion 1E and the front side mold portion 1F is denoted by the symbol L1, and the intersection line between the upper extrusion portion 1A and the front side mold portion 1F is denoted by the symbol L2. The intersection line between the rear longitudinal edge extrusion portion 1C and the rear side mold portion 1H is denoted by the symbol L3. The intersection line between the upper extrusion portion 1A and the rear side mold portion 1H is denoted by the symbol L4.

[0060] The front side mold portion 1F and the rear side mold portion 1H are portions formed by a mold (not shown) capable of opening and closing, and thus are called mold portions. Regarding the front side mold portion 1F, with the front end portion of the upper extrusion portion 1A and the upper end portion of the front longitudinal edge extrusion portion 1E held by the mold, an elastic material is injected into the cavity of the mold, whereby the front end portion of the upper extrusion portion 1A and the upper end portion of the front longitudinal edge extrusion portion 1E are molded integrally. Regarding the rear side mold portion 1H, with the rear end portion of the upper extrusion portion 1A and the upper end portion of the rear longitudinal edge extrusion portion 1C held by the mold, an elastic material is injected into the cavity of the mold, whereby the upper extrusion portion 1A and the rear longitudinal edge extrusion portion 1C are molded integrally.

[0061] In addition, the material that can be applied to the front door seal 1 is not particularly limited as long as it is a rubber elastomer. However, when using rubber, EPDM sponge rubber is preferably used, and when using a thermoplastic resin, foamed TPO or soft TPO is preferably used.

[0062] (Detailed structure of the left front door seal 1)

[0063] Hereinafter, the case where the present invention is applied to the rear mold part 1H of the left front door seal 1 will be described. However, the present invention is not limited to the application to this part. For example, it can also be applied to the upper front side of a rear door seal (not shown).

[0064] (Structure of the rear longitudinal edge extrusion part 1C)

[0065] First, according to Figure 2 , Figure 3 , Figure 4A and Figure 4B the structure of the rear longitudinal edge extrusion part 1C will be described. Figure 4A And Figure 4B are cross-sectional views, which are equivalent to the cross-sectional views taken along the IV-IV line of Figure 3 , showing the state where the left front door seal 1 is installed on the front door 110. As Figure 2 shows, the rear longitudinal edge extrusion part 1C extends linearly in the vertical direction. As Figure 3 shows, the upper end part of the rear longitudinal edge extrusion part 1C is connected to the lower end part of the rear mold part 1H.

[0066] As Figure 4A shows, the rear longitudinal edge extrusion part 1C includes a longitudinal edge base part 10 and a longitudinal edge sealing wall 11. The longitudinal edge base part 10 extends along the frame longitudinal edge part 113c and is fixed to the frame longitudinal edge part 113c. An extension plate part 113d extending rearward is provided on the outside of the vehicle body of the frame longitudinal edge part 113c. A decorative part 113e is installed on the outside of the vehicle body of the extension plate part 113d.

[0067] The longitudinal edge sealing wall 11 is a part that bulges rearward and toward the inside of the vehicle body from the longitudinal edge base part 10. In Figure 4A , the state where the front door 110 is opened is shown, and the longitudinal edge sealing wall 11 is not in elastic contact with the vehicle body. The inside of the longitudinal edge base part 10 is formed in a hollow shape and has a cavity part 10a. The cavity formed by the longitudinal edge sealing wall 11 and the cavity part 10a of the longitudinal edge base part 10 are separated by a partition wall 10b provided at the rear part of the longitudinal edge base part 10.

[0068] As Figure 4BAs shown, when the front door 110 is closed, the longitudinal edge sealing wall 11 is in elastic contact with the center pillar P of the vehicle body. The center pillar P has a front plate P1 extending in the vehicle interior-exterior direction and an outer side plate P2 extending rearward from the end of the front plate P1 on the vehicle exterior side. A step P3 recessed toward the vehicle interior side is formed in the front side portion of the outer side plate P2. When the front door 110 is closed, the longitudinal edge sealing wall 11 in the rear longitudinal edge extrusion portion 1C elastically contacts the front side portion of the outer side plate P2 located in front of the step P3 from the vehicle exterior side. In this way, the longitudinal edge sealing wall 11 is extruded and deformed toward the vehicle exterior side, and the top side in the bulging direction of the longitudinal edge sealing wall 11 is deformed so as to move toward the vehicle exterior side and elastically contact the center pillar P.

[0069] (Configuration of the upper extrusion portion 1A)

[0070] Next, according to Figure 2 、 Figure 3 、 Figure 5A and Figure 5B the structure of the upper extrusion portion 1A will be described. Figure 5A And Figure 5B are cross-sectional views, corresponding to the cross-sectional view taken along the V-V line of Figure 3 , showing the state in which the left front door seal 1 is installed on the front door 110. As Figure 2 shown, the upper extrusion portion 1A extends in the front-rear direction and is gently curved as a whole in such a way that it gets closer to the lower side as it goes forward along the shape of the frame upper edge portion 113b. As Figure 3 shown, the rear end portion of the upper extrusion portion 1A is connected to the front end portion of the rear side die portion 1H.

[0071] As Figure 5A shown, the upper extrusion portion 1A includes an upper base portion 20 and an upper sealing wall 21. The upper base portion 20 extends in the front-rear direction along the frame upper edge portion 113b and is fixed to the frame upper edge portion 113b. A protruding plate portion 113f that protrudes upward and extends in the front-rear direction is provided on the vehicle exterior side of the frame upper edge portion 113b. A molding strip 113g is installed on the vehicle exterior side of the protruding plate portion 113f.

[0072] The inside of the upper base portion 20 is formed in a hollow shape and has a cavity portion 20a. An outer sealing lip 22 that protrudes upward and extends in the front-rear direction is provided on the upper surface of the upper base portion 20.

[0073] The upper sealing wall 21 is a portion that is integrally formed with the upper base portion 20 on the vehicle interior side of the upper base portion 20 and bulges toward the vehicle interior side. In Figure 5A , the state in which the front door 110 is open is shown, and the upper sealing wall 21 is not in elastic contact with the vehicle body. In addition, the cavity formed by the upper sealing wall 21 and the cavity portion 20a of the upper base portion 20 are separated by a partition wall 20b provided in the portion of the upper base portion 20 on the vehicle interior side.

[0074] On the part of the upper surface of the upper sealing wall 21 on the vehicle exterior side, an inner sealing lip 23 that protrudes upward and extends in the front-rear direction is provided. The inner sealing lip 23 is arranged at a position away from the outer sealing lip 22 toward the vehicle interior side from the outer sealing lip 22, and is inclined so that the upper end is closer to the vehicle exterior side. In addition, the thickness of the inner sealing lip 23 is set to be thinner than the thickness of the outer sealing lip 22. Moreover, the vertical dimension of the inner sealing lip 23 is set to be shorter than the vertical dimension of the outer sealing lip 22.

[0075] As Figure 5B shown, when the front door 110 is closed, the upper sealing wall 21 of the upper extrusion part 1A elastically contacts the roof R of the vehicle body from below. The roof R has an inner panel R1 that extends in the vehicle interior-exterior direction and an inner plate R2 that extends downward from the end of the inner panel R1 on the vehicle interior side. A step R3 is formed in the part of the inner panel R1 on the vehicle exterior side. Moreover, the roof R has an outer panel R4 that extends from the end of the step R3 to the vehicle exterior side and an outer plate R5 that extends upward from the end of the outer panel R4.

[0076] It is configured such that when the front door 110 is closed, the inner panel R1 and the outer panel R4 are in a substantially parallel positional relationship with respect to the seal 1 mounting surface of the frame upper edge part 113b.

[0077] When the front door 110 is closed, the upper sealing wall 21 of the upper extrusion part 1A elastically contacts the part of the inner panel R1 on the vehicle exterior side from below. In this way, the upper sealing wall 21 is squeezed downward and collapses and deforms between the inner panel R1 and the frame upper edge part 113b, so as to elastically contact the inner panel R1 and the frame upper edge part 113b.

[0078] Moreover, when the front door 110 is closed, the outer sealing lip 22 elastically contacts the part of the outer panel R4 on the vehicle exterior side from the lower oblique direction, and the inner sealing lip 23 elastically contacts the part of the outer panel R4 on the vehicle interior side from the lower oblique direction. In this way, the outer sealing lip 22 and the inner sealing lip 23 are squeezed downward and bent and deformed, so as to elastically contact the outer panel R4. In this way, a multiple sealing structure can be obtained.

[0079] (Configuration of the rear side die part 1H)

[0080] As Figure 3As shown, the rear side mold part 1H is formed to correspond to the connecting part that connects the upper frame edge part 113b and the vertical frame edge part 113c of the window frame 113. Specifically, the rear side mold part 1H includes a roof side part 30 that extends in the front-rear direction along the upper frame edge part 113b and a pillar side part 40 that extends in the up-down direction along the vertical frame edge part 113c. In this embodiment, the length of the roof side part 30 is shorter than the length of the pillar side part 40, but it is not limited thereto. The length of the roof side part 30 may also be longer than the length of the pillar side part 40, or the length of the roof side part 30 may also be equal to the length of the pillar side part 40.

[0081] The rear side mold part 1H further includes a fixing plate 50 fixed to the window frame 113. The fixing plate 50 extends rearward from the junction part and its vicinity of the roof side part 30 and the pillar side part 40. At the middle part in the up-down direction of the fixing plate 50, an insertion hole 50a is formed, and a jig or the like (not shown) for fixing the fixing plate 50 to the window frame 113 is inserted into the insertion hole 50a. As Figure 6A and Figure 6B shown, an insert 51 made of a hard resin material or the like is embedded inside the fixing plate 50, and in this way, the rigidity of the fixing plate 50 can be improved. An outsert (not shown) may also be provided instead of the insert 51.

[0082] The pillar side part 40 has a pillar side base part 41 and a pillar side seal wall 42. The pillar side base part 41 is mounted on the vertical frame edge part 113c, and the pillar side seal wall 42 is integrally formed with the pillar side base part 41. When the front door 110 is closed, the pillar side seal wall 42 is in elastic contact with the pillar P in a state of being extruded and deformed by the pillar P toward the outside of the vehicle compartment. The pillar side base part 41 has a cutout part 41a that extends along the vertical frame edge part 113c and in the up-down direction. The cutout part 41a is used for pulling out a core (not shown) used when the pillar side seal wall 42 is molded. The lower end part of the pillar side base part 41 is connected to the upper end part of the vertical edge base part 10 of the rear side vertical edge extrusion part 1C (shown in Figure 4A ).

[0083] The pillar side seal wall 42 bulges toward the inside of the vehicle compartment from the pillar side base part 41. The lower end part of the pillar side seal wall 42 is connected to the upper end part of the vertical edge seal wall 11 of the rear side vertical edge extrusion part 1C (shown in Figure 4A ). A pillar side seal lip 43 is formed on the outer surface of the pillar side seal wall 42, and the pillar side seal lip 43 is in elastic contact with the pillar P when the front door 110 is closed. The pillar side seal lip 43 is arranged on the part of the pillar side seal wall 42 closer to the inside of the vehicle compartment.

[0084] The pillar side seal lip 43 protrudes toward the outside of the pillar side seal wall 42 and continuously extends in the up-down direction. The protruding direction of the pillar side seal lip 43 can be set to face rearward or toward the inside of the vehicle compartment. As Figure 3As shown, the lower side of the pillar side seal lip 43 extends near the rear longitudinal side extrusion part 1C. The protruding height of the lower part of the pillar side seal lip 43 is set to be lower towards the lower end.

[0085] In addition, the upper part of the pillar side seal lip 43, i.e., the part near the vehicle roof side, extends to the outer surface of the vehicle roof side seal wall 32 described later, i.e., the upper surface of the rear die part 1H. The protruding height of the part of the pillar side seal lip 43 near the vehicle roof side is set to be lower towards its end.

[0086] As Figure 6B shown, when the front door 110 is closed, the pillar side seal wall 42 elastically contacts the step P3 of the middle pillar P from the outside of the vehicle compartment. In this way, the pillar side seal wall 42 is squeezed and deformed towards the outside of the vehicle compartment, and the top side of the bulging direction of the pillar side seal wall 42 is deformed in a manner of moving towards the outside of the vehicle compartment and elastically contacts the middle pillar P. Moreover, the pillar side seal lip 43 also elastically contacts the step P3 and is deformed in a manner of tilting towards the outside of the vehicle compartment.

[0087] As Figure 7A shown, the vehicle roof side part 30 has a vehicle roof side base 31 and a vehicle roof side seal wall 32. The vehicle roof side base 31 is installed on the frame upper edge part 113b. The vehicle roof side seal wall 32 is formed integrally with the vehicle roof side base 31, and when the front door 110 is closed, the vehicle roof side seal wall 32 elastically contacts the vehicle roof R in a state of being squeezed and deformed downward by the vehicle roof R. The vehicle roof side base 31 extends along the front-rear direction along the frame upper edge part 113b. The vehicle roof side base 31 has a cutout part 31a extending along the front-rear direction. The cutout part 31a is continuously provided with the cutout part 41a of the pillar side part 40 and is used for pulling out the core (not shown) used when the vehicle roof side seal wall 32 is formed. The front end part of the vehicle roof side base 31 is connected to the rear end part of the upper edge base 20 of the upper edge extrusion part 1A (shown in Figure 5A ).

[0088] The vehicle roof side seal wall 32 bulges towards the inside of the vehicle compartment from the vehicle roof side base 31. The front end part of the vehicle roof side seal wall 32 is connected to the rear end part of the upper edge seal wall 21 of the upper edge extrusion part 1A (shown in Figure 5A ). On the outer surface of the vehicle roof side seal wall 32, an outer seal lip 33 that elastically contacts the vehicle roof R when the front door 110 is closed is formed. The outer seal lip 33 protrudes upward and extends along the front-rear direction. The front end part of the outer seal lip 33 is connected to the rear end part of the outer seal lip 22 of the upper edge extrusion part 1A (shown in Figure 5A ). As Figure 3 shown, the rear end part of the outer seal lip 33 continuously extends to the upper part of the fixing plate 50.

[0089] As Figure 7AAs shown, a roof side seal lip 34 is formed on the outer surface of the roof side seal wall 32. The roof side seal lip 34 elastically contacts the roof R when the front door 110 is closed. The roof side seal lip 34 is arranged at a portion of the roof side seal wall 32 on the vehicle exterior side.

[0090] The roof side seal lip 34 protrudes outward from the roof side seal wall 32 and continuously extends in the front-rear direction. The protruding direction of the roof side seal lip 34 is set to be upward, and it is inclined in such a way that it gets closer to the vehicle exterior side as it goes upward. The front end portion of the roof side seal lip 34 is connected to the rear end portion of the inner seal lip 23 of the upper edge extrusion portion 1A (shown in Figure 5A ).

[0091] In addition, as Figure 3 shown, the rear portion of the roof side seal lip 34, i.e., the pillar side portion, extends to the outer surface of the pillar side seal wall 42. The protruding height of the pillar side portion of the roof side seal lip 34 is set to be lower as it goes toward its end portion.

[0092] The pillar side portion of the roof side seal lip 34 and the roof side portion of the pillar side seal lip 43 are arranged within a range where they overlap when viewed in the vehicle interior-exterior direction. Moreover, as Figure 8A shown, when the front door 110 is opened, the pillar side portion (as the rear end portion) of the roof side seal lip 34 and the roof side portion of the pillar side seal lip 43 are arranged with a gap in the vehicle interior-exterior direction so as not to contact each other when the vehicle door is opened. At this time, the pillar side seal lip 43 is arranged closer to the vehicle interior side than the roof side seal lip 34.

[0093] As Figure 3 shown, the pillar side portion of the roof side seal lip 34 is formed to be closer to the roof side portion of the pillar side seal lip 43 as it goes toward its end portion. Specifically, the pillar side portion of the roof side seal lip 34 is bent in such a way that it gets closer to the vehicle interior side as it goes toward the rear end portion. And the protruding amount of the pillar side portion of the roof side seal lip 34 from the roof side seal wall 32 becomes smaller as it goes toward its rear end portion.

[0094] As Figure 8B shown, when the front door 110 is closed, the roof side seal wall 32 elastically contacts the inner panel R1 of the roof R from below. In this way, the roof side seal wall 32 is squeezed downward and deformed, thereby elastically contacting the inner panel R1 of the roof R. Moreover, the pillar side seal lip 43 elastically contacts the inner panel R1 and the step R3 and is deformed in a way that it tilts toward the vehicle exterior side.

[0095] On the other hand, the pillar side portion of the roof side seal lip 34 is deformed in a way that it tilts toward the vehicle exterior side when the front door 110 is closed, but the amount of deformation is smaller than that of the roof side portion of the pillar side seal lip 43.

[0096] The reason is that

[0097] (1) The portion of the roof side seal lip 34 on the pillar side is set such that the protruding amount from the roof side seal wall 32 becomes smaller toward the rear end portion;

[0098] (2) The portion of the roof side seal lip 34 on the pillar side is set such that the lip shape (both the top end and the root) bends more toward the vehicle interior side toward the rear end portion.

[0099] (That is, it forms an acute angle with the direction in which the roof side seal wall 32 bends and deforms in the vehicle interior - exterior direction, rather than being parallel).

[0100] From the above two points, the following conclusion can be obtained: The rigidity of the lip of the portion of the roof side seal lip 34 on the pillar side is higher than the rigidity of the lip of the portion of the pillar side seal lip 43 on the roof side. As described above, with respect to the roof side seal wall 32, when the front door 110 is closed, the portion 32a from the root T1 of the roof side seal lip 34 to the root T2 of the roof side base portion bends upward, and the portion 32b between the root T3 of the roof side of the pillar side seal lip 43 and the root T1 of the pillar side of the roof side seal lip 34 bends downward. As a result, (when the front door 110 is closed) the portion of the roof side seal lip 34 on the pillar side contacts the portion of the pillar side seal lip 43 on the roof side. This can be achieved by setting the protruding amount of the roof side seal lip 34 from the roof side seal wall 32, setting the distance between the roof side seal lip 34 and the pillar side seal lip 43 in the vehicle interior - exterior direction, and the like.

[0101] In the present embodiment, since the portion of the roof side seal lip 34 on the pillar side bends in a manner close to the pillar side seal lip 43, the end portion of the portion of the roof side seal lip 34 on the pillar side is arranged to face the surface facing the vehicle exterior of the pillar side seal lip 43 when the front door 110 is opened. When the front door 110 is closed in this state, the end portion of the portion of the roof side seal lip 34 on the pillar side contacts the surface facing the vehicle exterior of the pillar side seal lip 43. In this way, the gap between the end portion of the portion of the roof side seal lip 34 on the pillar side and the pillar side seal lip 43 is almost eliminated, and water intrusion can be suppressed.

[0102] (Function and effect of the embodiment)

[0103] As described above, when the front door 110 is closed, as Figure 7B shown, the roof side seal wall 32 and the roof side seal lip 34 are in elastic contact with the roof R. In addition, as Figure 6B shown, the pillar side seal wall 42 and the pillar side seal lip 43 are in elastic contact with the pillar P. Since the roof side seal wall 32 is squeezed downward by the roof R and deformed, and the pillar side seal wall 42 is squeezed outward by the pillar P and deformed, the deformations of the roof side seal wall 32 and the pillar side seal wall 42 are different.

[0104] At this time, since the roof side seal lip 34 provided on the roof side seal wall 32 and the pillar side seal lip 43 provided on the pillar side seal wall 42 are arranged with a gap in the vehicle interior and exterior direction so as not to contact each other when the front door 110 is opened, in order to cope with different deformations of the roof side seal wall 32 and the pillar side seal wall 42, the roof side seal lip 34 and the pillar side seal lip 43 can be deformed or displaced, improving the sealing performance.

[0105] In addition, since the pillar side portion of the roof side seal lip 34 and the roof side portion of the pillar side seal lip 43 are arranged with a gap in the vehicle interior and exterior direction so as not to contact each other when the front door 110 is opened, even if they contact each other when the front door 110 is closed, they will not be squeezed outward or pulled inward. In this way, it is difficult to generate a gap between the roof side seal lip 34 and the outer surface of the vehicle body, and the appearance aesthetic property is better.

[0106] Moreover, since the pillar side portion of the roof side seal lip 34 contacts the roof side portion of the pillar side seal lip 43 when the front door 110 is closed, water intrusion from between the pillar side portion of the roof side seal lip 34 and the roof side portion of the pillar side seal lip 43 can be suppressed.

[0107] The above embodiments are only examples in all aspects and should not be construed in a limiting sense. Moreover, modifications and changes within the equivalent scope of the claims are within the scope of the present invention.

[0108] -Industrial Applicability-

[0109] In summary, the seal for an automotive door according to the present invention can be used, for example, when sealing the gap between the door mounted on the side of the vehicle and the vehicle body.

Claims

1. A seal for an automobile door, which is installed on the upper edge portion and the longitudinal edge portion of the window frame of the automobile door, and the longitudinal edge portion extends downward from the end portion in the longitudinal direction of the upper edge portion. It is characterized in that: The seal for the automobile door includes a roof side portion extending along the vehicle front-rear direction along the upper edge portion of the frame and a pillar side portion extending along the vertical direction along the longitudinal edge portion of the frame. The roof side portion has a roof side base portion and a roof side sealing wall. The roof side base portion is installed on the upper edge portion of the frame. The roof side sealing wall is integrally formed with the roof side base portion, and when the automobile door is closed, the roof side sealing wall is in elastic contact with the roof of the vehicle body in a state of being squeezed downward and deformed by the roof of the vehicle body. The pillar side portion has a pillar side base portion and a pillar side sealing wall. The pillar side base portion is installed on the longitudinal edge portion of the frame. The pillar side sealing wall is integrally formed with the pillar side base portion, and when the automobile door is closed, the pillar side sealing wall is in elastic contact with the pillar in a state of being squeezed outward by the pillar of the vehicle body and deformed. A roof side sealing lip is formed on the outer surface of the roof side sealing wall. The roof side sealing lip is in elastic contact with the roof when the automobile door is closed, and is formed to protrude outward from the roof side sealing wall and continuously extend in the vehicle front-rear direction to the outer surface of the upper end of the pillar side sealing wall. A pillar side sealing lip is formed on the outer surface of the pillar side sealing wall. The pillar side sealing lip is in elastic contact with the pillar when the automobile door is closed, and is formed to protrude outward from the pillar side sealing wall and continuously extend in the vertical direction to the outer surface of the roof side sealing wall. The pillar side portion of the roof side sealing lip and the roof side portion of the pillar side sealing lip are arranged within a range where they overlap when viewed from the vehicle interior-exterior direction, and are arranged with a gap in the vehicle interior-exterior direction so as not to contact each other when the automobile door is opened. When the automobile door is closed, the pillar side portion of the roof side sealing lip contacts the roof side portion of the pillar side sealing lip. The pillar side sealing lip is arranged closer to the vehicle interior side than the roof side sealing lip. The pillar side portion of the roof side sealing lip is bent in such a way that it is closer to the vehicle interior side as it approaches its end portion.

2. The seal for an automobile door according to claim 1, wherein: When the automobile door is closed, the pillar side end portion of the roof side sealing lip contacts the surface facing the vehicle exterior of the pillar side sealing lip.

3. The seal for an automobile door according to claim 1, wherein: The protruding amount of the pillar side portion of the roof side sealing lip from the roof side sealing wall becomes smaller as it approaches the end portion of the roof side sealing lip.

4. The seal for an automobile door according to claim 1, wherein: The roof side sealing lip protrudes upward from the roof side sealing wall and is inclined in such a way that it is closer to the vehicle exterior side as it approaches the upper end.

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