JP2013154669A - Seal structure for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seal structure for a vehicle which improves sealing performance to a level difference caused by connecting plates, improves appearance, and facilitates setting and a positioning operation.SOLUTION: A seal structure (sealing mechanism 13) for a vehicle comprises a stepped portion 54 formed to a joint (center pillar 27/roof side joint 41) that overlaps the plates (side outer panel 36) having sealing face 53 to which weather strip 51 sticks mutually and connect it with board thickness t of side outer panel 36 and a patch 55 that covers the stepped portion 54. A patch 55 includes: a body 61 that is fixed to the joint (center pillar 27/roof side joint 41); one side of a lip part 62 connected to the body 61; the other lip part 63; and a positioning protrusion 78 fitted to a positioning hole 77 of a vehicle body 12.

Description

  The present invention relates to an automotive seal structure that seals a sealing member including a portion where plate members are overlapped and joined to achieve water tightness.

In some automotive seal structures, an outer panel that forms the outer surface of a vehicle body is divided into two parts, and a sealing member that is in close contact with the outer panel is simultaneously brought into contact with a joint portion obtained by joining the divided parts.
For example, the joint portion is plastically processed separately using a high-strength steel plate for the center pillar, and plastically processed using a normal steel plate for the roof rail (see, for example, Patent Document 1).

  In addition, each pillar such as a center pillar is divided into two parts in the top and bottom, and a stepped part is formed at the boundary part connecting the top and bottom, and a seal tape is applied to the stepped part of the stepped part where the seal member provided on the door contacts. (For example, refer to Patent Document 2).

However, in the prior art (Patent Document 1), a step difference of the plate material overlapped at the joint between the upper part of the center pillar and the roof rail occurs, welding marks remain, and the appearance deteriorates.
Further, if the step is sealed with a seal member provided on the door together with the center pillar, the sealing performance may be lowered due to the step.

In Patent Document 2, since the seal tape is applied only at a position corresponding to the seal member provided on the door, there is no seal tape at the remaining stepped portion.
As described above, the stepped portion generated in the connected portion remains exposed, and the appearance is poor.
If the sealing tape is made large corresponding to the remaining stepped portion in order to cover the remaining stepped portion, positioning of the sealing tape (patch) is difficult and work is difficult.

JP 2011-195107 A JP 2011-88494 A

  An object of the present invention is to provide an automotive seal structure that improves sealing performance, improves appearance, is easy to set, and can be easily positioned with respect to a level difference caused by joining plate materials.

  In order to solve the above-mentioned problems, an invention according to claim 1 is a sealing structure for an automobile which is sealed by a weather strip provided between a door attached to the automobile body and a vehicle body, and forms the vehicle body or the door. Among the plate members to be provided, provided with a stepped portion formed by the plate thickness of the plate material on a joint portion obtained by overlapping and joining the plate materials having a sealing surface to which the weather strip adheres, and a patch covering the stepped portion, The patch includes a main body portion that is fixed to the joint portion, one lip portion that is connected to one and the other of the main body portion and closely contacts the plate member, and the other lip portion, and the main body portion includes the one lip portion and the other lip portion. Compared with the lip portion, the thickness is formed thicker, and one lip portion and the other lip portion are formed with a thickness less than the plate thickness that forms the height of the stepped portion, and the thickness is increased toward the tip. Gradually reduce the It characterized in that it is continuously the surface of the lip if not flush a level difference on the surface.

  The invention according to claim 2 is characterized in that the patch includes at least a first attachment surface that opens toward the vehicle body or the door and is fixed to the joint, and a continuous second attachment surface.

  The invention according to claim 3 is characterized in that the patch is formed of an elastomer.

  The invention according to claim 4 is characterized in that the patch is a two-color molded product in which the main body portion is formed of a hard resin and one lip portion and the other lip portion are formed of an elastomer.

  In the invention according to claim 5, the patch is characterized in that the main body portion includes a positioning projection that fits into the positioning hole of the vehicle body or the door.

  The invention according to claim 6 is characterized in that a groove portion is formed by bending and pushing an end portion of a joint portion of a plate member of a vehicle body or a door inward of an automobile, and a step portion is disposed at a bottom portion of the groove portion. To do.

  In the invention according to claim 7, the patch is arranged with the tip of one lip portion facing upward, and the tip of the lip portion of the side wall portion of the patch extending inward of the automobile among the tips of one lip portion. Is inclined to an incline toward the inside of the automobile.

  According to an eighth aspect of the present invention, a groove portion is formed by bending and pushing an end portion of a joint portion of a plate member of a vehicle body or a door inward of an automobile, a step portion is disposed at the bottom portion of the groove portion, and a dust sealer is provided at the step portion. It is characterized by being coated.

  In the invention according to claim 1, the automotive seal structure includes a stepped portion formed by a plate thickness of the plate material at a joint portion obtained by overlapping and joining the plate materials having the sealing surface, and a patch covering the stepped portion. The patch includes a main body portion that is fixed to the joint portion, one lip portion that is in close contact with the plate material, and the other lip portion, and the main body portion is thicker than the one lip portion and the other lip portion. The one lip portion and the other lip portion are formed so that the tip is thinner than the plate thickness that forms the height of the stepped portion, and the thickness is gradually reduced toward the tip. Since the surface of the lip part is continuously flush with the surface, it is possible to attach a thicker body part, improving the mounting strength of the patch, and improving the mounting surface of the car body or door. Press the lip part with elastic force Can be brought into close contact Te, step between the sealing surface by the tip of the lip portion is extremely lower than the step portion, thereby improving the sealing property.

  Further, since the surface of the lip portion is made to be flush with the surface of the main body portion without a step, the stepped portion is hidden by a smooth curved surface so that appearance is improved.

  In the invention according to claim 2, since the patch includes at least a first attachment surface that opens toward the vehicle body or the door and is fixed to the joint portion, and a continuous second attachment surface, the main body portion has an open shape. Holding and facilitating setting to the joint.

  In the invention according to claim 3, since the patch is made of an elastomer, the sealing property with the weather strip is good with respect to the patch, and the lip portion of the patch is elastic to the sealing surface of the vehicle body or the door. The weather strip is pressed by force, and the weather strip can be brought into contact with the boundary between the tip of the lip portion and the seal surface of the vehicle body or the door, and the gap with the weather strip can be reduced.

  In the invention according to claim 4, since the patch is a two-color molded product in which the main body portion is formed of a hard resin and one lip portion and the other lip portion are formed of an elastomer, the strength of the main body portion can be increased. it can. For example, when the positioning protrusion is provided on the main body, the strength of the positioning protrusion is increased, and the patch positioning operation is facilitated.

  In the invention according to claim 5, since the patch includes a positioning protrusion that fits into the positioning hole of the vehicle body or the door, the positioning protrusion is supported on the main body having a large strength by the thick wall, and the positioning protrusion The work of fitting into the positioning hole when setting the patch on the vehicle body or the door becomes easy.

  In the invention according to claim 6, the groove portion is formed by bending the end portion of the joint portion of the plate member of the vehicle body or the door inward of the automobile, and the step portion is disposed at the bottom portion of the groove portion. The main body part formed in the thick wall of the patch is fitted to suppress the bulging amount (bu) of the patch (55) that bulges outward from the vehicle body or door (automobile 11) (in the direction of arrow a4). And a smooth surface can be formed with respect to the sealing surface. As a result, it is possible to hide the stepped portion due to the plate thickness generated when the plate materials are overlapped and joined, and the welding trace of the spot applied to the overlapped portion, the appearance is improved, and the sealing property with the weather strip Can be improved.

  In the invention according to claim 7, the patch is arranged with the tip of one lip portion facing upward, and the tip of the lip portion of the side wall portion of the patch extending inward of the automobile among the tips of one lip portion. However, since it is inclined in an upward gradient toward the inside of the car, if the patch is attached to the joint part (groove part) of the center pillar, rain water or washing water can be sprayed sideways (vehicle width direction) on the car. There is an advantage that it is difficult to climb along the tip inclined to the climbing slope and it is difficult to enter the vehicle inside.

  Also, when the car is leaning sideways while rolling or stopping (rolling), for example, when the car is tilted to the right so that the right side is low and the left side is high, the tip of the lip is horizontal. If it is an angle which does not become, the infiltration of rainwater can be suppressed similarly.

  In the invention according to claim 8, the groove portion is formed by bending and pushing the end portion of the joint portion of the plate member of the vehicle body or the door inward of the automobile, the step portion is disposed at the bottom portion of the groove portion, and the dust sealer is provided at the step portion. Since the electrodeposition paint applied to the edge of the stepped part (plate material) is thin, the dust sealer can prevent rust in areas where the paint thickness is thin, and the lip A dust sealer can be confined in the space defined by the part (63) and the bottom part (84) to suppress the amount of protrusion from the outer surface of the vehicle body or door.

  In addition, rainwater can be prevented from entering a gap between overlapping portions where a plate material (for example, the upper portion of the center pillar outer panel) and a plate material (for example, the lower portion of the center pillar outer panel) are overlapped.

It is a side view of the vehicle body which employ | adopted the sealing structure for motor vehicles based on Example 1 and Example 6 of this invention. 1 is a perspective view of an automobile seal structure according to Embodiment 1. FIG. FIG. 3 is a detailed view of part 3 of FIG. 1. FIG. 4 is a cross-sectional view taken along line 4-4 of FIG. FIG. 5 is a sectional view taken along line 5-5 of FIG. FIG. 6 is a view taken along arrow 6 in FIG. 3. 2 is a perspective view of a patch according to Embodiment 1. FIG. FIG. 8 is a view taken in the direction of arrow 8 in FIG. 7. It is a side view of the door which employ | adopted the sealing structure for motor vehicles based on Example 2 of this invention. FIG. 10 is a sectional view taken along line 10-10 in FIG. 9; It is sectional drawing of the sealing structure for motor vehicles based on Example 3 of this invention. It is sectional drawing of the sealing structure for motor vehicles based on Example 4 of this invention. It is sectional drawing of the sealing structure for motor vehicles based on Example 5 of this invention. It is a figure explaining Example 6 of this invention, and is the 14-part detailed drawing of FIG. 10 is a perspective view of a patch according to Example 6. FIG.

  Hereinafter, embodiments of the present invention will be described in detail in Example 1, Example 2, Example 3, Example 4, Example 5, and Example 6.

As shown in FIGS. 1 and 2, the vehicle 11 employs the automobile seal structure (seal mechanism 13) according to the first embodiment for the vehicle body 12.
Further, the vehicle body 12 employs the automotive seal structure (seal mechanism 13F) according to the sixth embodiment shown in FIG.

  The vehicle body 12 includes a front body 17 in front of the passenger compartment 16, an underbody 18 that is connected to the front body 17 and forms the floor of the passenger compartment 16, and left and right side bodies 21 that stand on the underbody 18 and form a wall of the passenger compartment 16. The roof 22 is supported by the side body 21 and the rear body 23 is located behind the vehicle compartment 16.

  The side body 21 includes a side sill 25 formed with the underbody 18, a front pillar 26 erected at the front of the side sill 25, a center pillar 27 erected at the center of the side sill 25, and a rear body connected to the rear of the side sill 25. And a rear pillar 28 also included in 23.

The side body 21 includes a front door opening 31 and a rear door opening 32.
A front side door 33 is attached to the front door opening 31, and a rear side door 34 is attached to the rear door opening 32.

Further, the side body 21 is formed by a side outer panel 36 using a steel plate on the outer surface (front surface) of the vehicle body.
In the side outer panel 36, the center pillar 37 to the side sill 25 of the front pillar 26 are formed by plastic working a high-tensile steel plate. On the other hand, from the center part 37 of the front pillar 26 to the roof side rail 38, a general strength steel plate was formed by plastic working. In addition, the center pillar 27 is formed of a high-tensile steel plate up to the vicinity of the roof side rail 38. The rear pillar 28 and the rear body 23 were formed of steel plates having general strength.

  The center pillar 27 is joined by the center pillar / roof side joint 41 and the side sill / center pillar joint 42. The central portion 37 of the front pillar 26 is joined by the front pillar joint portion 43. The rear pillar 28 is joined by a side sill / rear pillar joint 44.

The center pillar / roof side joint 41 is included in the automotive seal structure (seal mechanism 13).
The front pillar joint portion 43 is included in the automotive seal structure (seal mechanism 13F).

The side sill / center pillar joint portion 42 is included in the automotive seal structure (seal mechanism 46).
The side sill / rear pillar joint 44 is included in the automotive seal structure (seal mechanism 47).

Next, the main structure of the automotive seal structure (seal mechanism 13) according to the first embodiment will be described with reference to FIGS.
The automobile seal structure (seal mechanism 13) is sealed by weather strips 51 and 52 (FIG. 4) provided between a door (front side door 33) attached to the vehicle body 12 of the automobile (vehicle) 11 and the vehicle body 12. .
“Sealing” means that the weather strips 51 and 52 are brought into close contact with each other so as to be sealed and watertight.

  Of the plate members (side outer panel 36) that form the outer surface (front surface) of the vehicle body 12, plate members (separated from the side outer panel 36, which will be described later) having a seal surface 53 with which the weather strip 51 is in close contact are provided. A stepped portion 54 formed by the plate thickness t (FIG. 5) of the plate material (outer panel 56 of the roof side rail 38) is covered on the jointed portion (center pillar / roofside jointed portion 41) which is overlapped and joined, and the stepped portion 54 is covered. Patch 55.

In the center pillar 27 of the first embodiment, “plate members (side outer panels 36)” are the outer panel 56 (FIG. 5) of the roof side rail 38 and the outer panel 57 of the center pillar 27.
In the first embodiment, “the plate members (side outer panels 36) are overlapped and joined” means that the outer panel 57 of the center pillar 27 is overlapped with the outer panel 56 of the roof side rail 38 and spot welding is performed. It was joined with.

  The patch 55 includes a main body portion 61 fixed to the joint portion (center pillar / roof side joint portion 41) and one lip portion that is connected to one and the other of the main body portion 61 and closely contacts the plate material (the outer panel 56 of the roof side rail 38). 62 and the other lip portion 63 that is in close contact with the plate material (the outer panel 57 of the center pillar 27).

The main body 61 has a thickness T that is thicker than the one lip 62 and the other lip 63.
The average thickness of one lip portion 62 is t1, and the average thickness of the other lip portion 63 is t2. The average thicknesses t1 and t2 are thinner than the thickness T of the main body 61.

One lip portion 62 and the other lip portion 63 are formed such that the tips 64 and 65 are thinner than the plate thickness t forming the height of the stepped portion 54, and the thickness gradually decreases toward the tips 64 and 65. .
Then, the surfaces 71 and 72 of the lip portions 62 and 63 are made to be flush with the surface 67 of the main body portion 61 (FIG. 5).

Further, as shown in FIGS. 4, 7, and 8, the patch 55 opens toward the vehicle body 12 (in the direction of the arrow a <b> 1) and is fixed to the joint portion (center pillar / roof side joint portion 41). 74 and a continuous second mounting surface 75.
Furthermore, the patch 55 is formed of an elastomer. The elastomer includes rubber.

  In addition, the patch 55 includes a positioning protrusion 78 that fits in the positioning hole 77 (FIG. 5) of the vehicle body 12 in the main body 61.

  The sealing structure is such that the end portions 81 and 82 of the joint portion (center pillar / roof side joint portion 41) of the plate material of the vehicle body 12 (the outer panel 56 of the roof side rail 38 and the outer panel 57 of the center pillar 27) are connected to the automobile (vehicle) 11. A groove 83 is formed by bending inward (in the direction of arrow a <b> 2 in FIG. 5) and the stepped portion 54 is disposed on the bottom 84 of the groove 83.

  In addition, the patch 55 is arranged so that the tip 64 of one lip 62 is directed upward (in the direction of arrow a3), and the inside of the automobile 11 (of the arrow a2 in FIG. 6) of the tip 64 of one lip 62 is arranged. The distal ends 87 of the lip portions 62 of the side walls 85 and 86 of the patch 55 extending in the direction) are inclined inward (inclination angle α) toward the inside of the automobile 11 (FIG. 6).

Next, the patch 55 and the center pillar 27 will be described in detail.
As shown in FIG. 7, the patch 55 is U-shaped and has an opening shape by the opening 91. Then, the side walls 85 and 86 already described are opposed to each other, and the ends of the side walls 85 and 86 are joined by the central side wall 92. A protrusion 78 was formed on the main body 61 of the central side wall 92.
The protrusion 78 is provided below the double-sided tape 93 attached to the main body 61.
In addition, it is not limited to the protrusion 78, You may omit the double-sided tape 93 by providing the clip fitted to a hole.

  Double-sided tape 93 was applied to the main body 61 from the vicinity of the front door opening seal 95 of the front door opening 31 to the vicinity of the rear door opening seal 96 of the rear door opening 32. The patch 55 is attached to the center pillar 27 by affixing the double-sided tape 93 to the bottom 84 of the groove 83 of the center pillar / roof side joint 41.

  The bottom 84 is formed by the outer panel 56 of the roof side rail 38 that forms the groove 83 and is formed by the outer panel 57 of the center pillar 27. That is, the outer panel 56 is also the bottom 84a.

  The center pillar 27 uses the center pillar / roof side joint portion 41 already described to join the lower outer panel 57 made of high-tensile steel plate to the lower general steel plate outer panel 56 with a weld 58. A pillar outer panel is formed.

  The outer panel 56 of the roof side rail 38 has a portion extending from the roof side rail 38 toward the center of the side sill 25 as an outer panel of the center pillar 27.

  A groove 83 is formed in the center pillar / roof side joint 41 with a desired depth de. As a result, the thickness T of the patch 55 can be increased, and the strength of the patch 55 can be increased. At the same time, the bulging amount bu of the patch 55 that bulges outward from the automobile 11 (in the direction of the arrow a4) can be suppressed.

  Further, when the dust sealer 101 (see FIG. 12) for preventing rust is applied to the edge 98 of the stepped portion 54, the dust sealer 101 swells to the outside of the automobile 11 (in the direction of the arrow a4) as compared with the case where the groove 83 is not provided. The amount of output can be suppressed.

Further, the center pillar 27 has a hat shape in which a front flange 104 and a rear flange 105 are provided on a groove-shaped edge, and a front door opening seal 95 is attached to the front flange 104 and a rear door opening seal 96 is attached to the rear flange 105.
Further, in the center pillar 27, the weather strip 51 contacts the sealing surface 53 of the front corner portion 107, and the weather strip 52 contacts the sealing surface 53 of the rear corner portion 108.

  The weather strip 51 is attached to the front side door 33 and the rear side door 34 and closely seals to the center pillar 27 including at least the patch 55.

Next, the operation of the automotive seal structure (seal mechanism 13) according to the first embodiment will be described.
In the automotive seal structure (seal mechanism 13), by providing the groove 83, the main body 61 having a thick patch 55 can be attached, the attachment strength of the patch 55 is improved, and the center pillar of the vehicle body 12 is improved. The lip portions 62 and 63 can be pressed and adhered to the sealing surface 53 of the 27 as shown by an arrow a5 by elastic force, and the step with the sealing surface 53 has a tip 64 of one lip portion 62 and the other lip portion 63. The tip 65 becomes extremely lower than the step portion 54, and the sealing performance is improved.

  “To be extremely lower than the stepped portion 54” means that the groove portion 83 is not provided and the stepped portion 54 is lower than the state where the stepped portion 54 is overlapped with the seal surface 53 of the center pillar 27 or the outer surface of the center pillar 27.

  In addition, since the surfaces 71 and 72 of the lip portions 62 and 63 are made to be flush with the surface 67 of the main body portion 61 without any step, the stepped portion 54 is hidden by the smooth curved surface and the appearance is improved.

  Since the first mounting surface 74 and the second mounting surface 75 are provided, the main body portion 61 maintains an open shape and can be easily set to the joint portion (center pillar / roof side joint portion 41). At the same time, the mounting strength can be improved.

  As shown in FIG. 6, when the patch 55 is attached to the joint portion 41 (groove portion 83) of the center pillar 27, even if rain water or washing water is sprayed sideways (vehicle width direction) as indicated by an arrow a <b> 6, The tip 87 of the ascending slope (inclination angle α) provided on the lip portions 62 and 63 is returned to the outside as indicated by the arrow a7, and the vehicle interior (the direction of the arrow a2) along the tip 87 of the lip portions 62 and 63 of the patch 55 There is an advantage that it becomes difficult to enter.

  Further, when the automobile 11 is tilted to the side during rolling or stopping (rolling), for example, when the automobile 11 is tilted to the right so that the right side of the automobile 11 is low and the left side is high, as indicated by an arrow a8. Similarly, if the tip 87 of the lip portions 62 and 63 is at an angle that does not become horizontal, the infiltration of rainwater can be suppressed as indicated by an arrow a7.

Next, the automotive seal structure (seal mechanism 13B) according to the second embodiment will be described with reference to FIGS.
FIG. 9 is a side view of the inside of the door (front side door 33) viewed from the vehicle compartment 16 side.

  The automotive seal structure (seal mechanism 13B) according to the second embodiment includes a seal surface to which the weather strip 51B is in close contact among plate members (door body 121 and window frame portion 122) that form a door (front side door 33). Stepped portion 54B formed by plate thickness (td) of plate material (door inner panel 123) on joint portion (window frame joint portion 41B) obtained by overlapping and joining plate materials (door inner panel 123, window frame inner 124) having 53B. And a patch 55B that covers the stepped portion 54B.

  The patch 55B includes at least a first attachment surface 74B that opens toward the door (front side door 33) and is fixed to the joint portion (window frame joint portion 41B), and a second attachment surface 75B.

  In addition, the patch 55B includes a positioning protrusion 78B that fits in the positioning hole 77B of the door (front side door 33) on the main body 61B.

  Further, the patch 55B is arranged with the tip 64B of one lip 62B facing upward (in the direction of arrow a3), and toward the inside of the automobile 11 (in the direction of arrow a2) of the tip 64B of one lip 62B. The tip 87B of the lip portion 62B of the side wall portion 86B of the patch 55B extending toward the inside is inclined to the inward slope of the automobile 11 (inclination angle β).

  The patch 55B can be formed in the same shape as the cross-sectional shape of the patch 55 shown in FIG. At that time, a groove portion (not shown) corresponding to the groove portion 83 is formed, and the stepped portion 54B is disposed at the bottom of the groove portion.

  The front side door 33 is attached with a weather strip 51B in close contact with a surface 126 facing the vehicle body 12. The weather strip 51B is also in close contact with the patch 55B.

  The weather strip 51B is fixed to the front side door 33, but it may be a weather strip (not shown) attached to the vehicle body 12 without being attached to the front side door 33. That is, it is only necessary that the weather strip be in close contact with the sealing surface 53B and the patch 55B as shown in FIG. 10 when the front side door 33 is closed.

The automotive seal structure (seal mechanism 13B) according to the second embodiment exhibits the same effects as the automotive seal structure (seal mechanism 13) according to the first embodiment.
That is, the lip portions 62B and 63B can be pressed and adhered to the sealing surface 53B of the door (front side door 33) by the elastic force as shown by the arrow b1, and a step with the sealing surface 53B is formed on one lip portion 62B. The tip 64B and the tip 65B of the other lip portion 63B are extremely lower than the stepped portion 54B, and the sealing performance is improved.

  Further, since the surfaces 71B and 72B of the lip portions 62B and 63B are made to be flush with the surface 67B of the main body portion 61B, the stepped portion 54B is hidden by the smooth curved surface and the appearance is improved.

  Since at least the first mounting surface 74B and the second mounting surface 75B are provided, the main body portion 61B maintains an open shape, and setting to the joint portion (window frame joint portion 41B) is facilitated.

  The automotive seal structure (seal mechanism 13C) according to Example 3 will be described with reference to FIG. FIG. 11 is a cross-sectional view corresponding to FIG. The same components as those in the first embodiment shown in FIGS. 1 to 8 are designated by the same reference numerals and description thereof is omitted.

  In the automotive seal structure (seal mechanism 13C) according to the third embodiment, the patch 55C is a two-color molded product in which the main body portion 61C is formed of a hard resin and one lip portion 62C and the other lip portion 63C are formed of an elastomer. It is characterized by that.

  The automotive seal structure (seal mechanism 13C) according to the third embodiment exhibits the same operations and effects as the automotive seal structure (seal mechanism 13) according to the first embodiment.

  Further, in the automotive seal structure (seal mechanism 13C) according to Example 3, the main body portion 61C is formed of a hard resin, and the one lip portion 62C and the other lip portion 63C are formed of an elastomer to form a two-color molded product. Therefore, the strength of the main body 61C can be increased. For example, when the positioning projection 78 is provided on the main body 61C, the strength of the positioning projection 78 is increased, and the positioning operation of the patch 55C is facilitated.

  The automotive seal structure (seal mechanism 13D) according to Example 4 will be described with reference to FIG. FIG. 12 is a cross-sectional view corresponding to FIG. The same components as those in the first embodiment shown in FIGS. 1 to 8 are designated by the same reference numerals and description thereof is omitted.

  The automotive seal structure (seal mechanism 13D) according to the fourth embodiment is characterized in that the stepped portion 54 is disposed on the bottom portion 84 of the groove portion 83, and the dust sealer 101 is applied to the stepped portion 54.

  The automotive seal structure (seal mechanism 13D) according to the fourth embodiment exhibits the same operations and effects as the automotive seal structure (seal mechanism 13) according to the first embodiment.

  Furthermore, in the automotive seal structure (seal mechanism 13D) according to Example 4, even when the thickness of the electrodeposition paint applied to the edge 98 of the step portion 54 (plate material) is reduced, the thickness of the paint is increased by the dust sealer 101. It is possible to prevent rust in the thinned region and to confine the dust sealer in the space defined by the lip portion 63 and the bottom portion 84, thereby suppressing the amount of protrusion from the outer surface of the vehicle body or the door.

  In addition, rainwater can be prevented from entering the gap between the overlapping portions 142 where the plate material (for example, the outer panel 56 of the roof side rail 38) and the plate material (for example, the outer panel 57 of the center pillar 27) are overlapped.

  An automotive seal structure (seal mechanism 13E) according to Example 5 will be described with reference to FIG. FIG. 13 is a cross-sectional view corresponding to FIG. The same components as those in the first embodiment shown in FIGS. 1 to 8 are designated by the same reference numerals and description thereof is omitted.

  The automotive seal structure (seal mechanism 13E) according to the fifth embodiment is characterized in that the stepped portion 54 is disposed on the bottom 84 of the groove 83 and the double-sided tape 93E is attached to the stepped portion 54. Specifically, a double-sided tape 93E that reaches the edge 98 of the stepped portion 54 is attached to the edge 98.

  The automotive seal structure (seal mechanism 13E) according to the fifth embodiment exhibits the same operations and effects as the automotive seal structure (seal mechanism 13) according to the first embodiment.

  Furthermore, even if the thickness of the electrodeposition paint applied to the edge 98 of the stepped portion 54 is reduced, it is possible to prevent rust in the area where the thickness of the paint is reduced by the double-sided tape 93E.

  In addition, when the double-sided tape 93E is applied to the edge 98 and the bottom 84 of the stepped portion 54, it is not necessary to apply the dust sealer 101, and the assembly work of the patch 55 becomes easier as compared with the case where the dust sealer 101 is applied.

  The automotive seal structure (seal mechanism 13F) according to Example 6 will be described with reference to FIGS. The same components as those in the first embodiment shown in FIGS. 1 to 8 are designated by the same reference numerals and description thereof is omitted.

  In the automotive seal structure (seal mechanism 13F) according to the sixth embodiment, the patch 55F opens toward the vehicle body 12 (in the direction of the arrow f1) and is fixed to the joint portion (front pillar joint portion 43). And the second mounting surface 75F.

  Further, the seal structure (seal mechanism 13F) includes an end portion 81F of the joint portion of the plate member of the vehicle body 12 (the outer panel 151 on the front pillar 26), and an end portion of the plate member of the vehicle body 12 (the outer panel 152 below the front pillar 26). The groove part 83F is formed by bending and pushing 82F inward of the automobile 11, and the step part 54F is disposed on the bottom part 84F of the groove part 83F.

The outer panel 151 on the front pillar 26 is obtained by plastic processing of a steel plate having a general strength.
The outer panel 152 under the front pillar 26 is obtained by plastic processing of a high-tensile steel plate.

  The automotive seal structure (seal mechanism 13F) according to the sixth embodiment exhibits the same operations and effects as the automotive seal structure (seal mechanism 13) according to the first embodiment.

Here, the shape of the joint used in the automotive seal structure (sealing mechanism 46) including the side sill / center pillar joint 42 and the automotive seal structure (sealing mechanism 47) including the side sill / rear pillar joint 44 shown in FIG. The patch is substantially the same as the cross-sectional shape of the second embodiment, but any one of the first embodiment and the fifth to sixth embodiments may be adopted.
Note that the patch of the present invention can be applied to any part as long as it is a joint portion having a step on the outer plate of the vehicle body, and the joint portion includes a band-shaped region having a constant width for joining two or more plate materials. It includes joining of end parts or joining of an end part of one plate material and the surface of the other plate material.

  The automobile seal structure of the present invention is suitable for automobiles.

  DESCRIPTION OF SYMBOLS 11 ... Automobile (vehicle), 12 ... Car body, 13 ... Automobile seal structure (seal mechanism), 33 ... Door (front side door), 36 ... Plate member (side outer panel), 41 ... Joint part (center pillar, roof side) Joining part), 51, 52 ... Weather strip, 53 ... Sealing surface, 54 ... Stepped part, 55 ... Patch, 56 ... Plate material (outer panel of roof side rail), 57 ... Plate material (outer panel of center pillar), 61 ... Main body 62, one lip part, 63 ... the other lip part, 64 ... the tip of one lip part, 65 ... the tip of the other lip part, 67 ... the surface of the main body part, 71 ... the surface of one lip part, 72 ... surface of the other lip part, 74 ... first mounting surface, 75 ... second mounting surface, 77 ... positioning hole, 78 ... positioning projection, 81, 82 ... end of plate material, 83 ... groove, 84 ... bottom 85, 86 ... side wall portion of the patch, the tip of the lip portion of the side wall portion 87 ... patches, T ... body portion thickness of the plate thickness of t ... plate.

Claims (8)

A sealing structure for an automobile that seals with a weather strip provided between a door attached to the body of the automobile and the vehicle body,
Of the plate members forming the vehicle body or the door, a step portion formed by a plate thickness of the plate material at a joint portion where the plate materials having a sealing surface to which the weather strip adheres are overlapped and joined, and the step A patch covering the part,
The patch includes a main body portion that is fixed to the joint portion, one lip portion that is connected to one and the other of the main body portions and closely contacts the plate member, and the other lip portion,
The main body portion is formed thicker than the one lip portion and the other lip portion,
The one lip portion and the other lip portion are formed such that the tip is made thinner than the plate thickness forming the height of the stepped portion, and the thickness is gradually reduced toward the tip.
A sealing structure for an automobile, wherein the surface of the lip portion is continuously flush with the surface of the main body portion without a step.   2. The automobile according to claim 1, wherein the patch includes at least a first attachment surface that opens toward the vehicle body or the door and is fixed to the joint portion, and a continuous second attachment surface. Seal structure.   3. The automobile seal structure according to claim 1, wherein the patch is made of an elastomer.   3. The patch according to claim 1, wherein the patch is a two-color molded product in which the main body portion is formed of a hard resin, and the one lip portion and the other lip portion are formed of an elastomer. Seal structure for automobiles.   5. The automobile seal structure according to claim 1, wherein the patch includes a positioning protrusion that fits in a positioning hole of the vehicle body or the door.   The groove portion is formed by bending and pushing the end portion of the joint portion of the plate member of the vehicle body or the door inward of the automobile, and the step portion is arranged at the bottom of the groove portion. Item 6. The automotive seal structure according to any one of Items 1 to 5.   The patch is arranged with the tip of the one lip portion facing upward, and the tip of the lip portion of the side wall portion of the patch extending inward of the automobile is the tip of the one lip portion, The automotive seal structure according to claim 1, wherein the automotive seal structure is inclined in an upward gradient toward the inside of the automobile.   A groove portion is formed by bending and pushing the end of the joint portion of the plate member of the vehicle body or the door inward of the automobile, and the step portion is disposed at the bottom portion of the groove portion, and a dust sealer is disposed on the step portion. The automotive seal structure according to claim 1, wherein the seal structure is applied.

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