JP4481016B2 - Windshield dam rubber installation method - Google Patents

Description

  The present invention relates to a windshield dam rubber mounting method.

For example, Patent Document 1 discloses a technique for mounting a dam rubber to a windshield. By the way, depending on the material, shape and the like, the dam rubber may be wrinkled on the curved inner side when attached to the corner portion of the windshield, which is not preferable in terms of sealing properties. For this reason, in the dam rubber, a corner mounting portion that is mounted on the corner portion of the windshield is separately formed by molding to a shape that matches the corner portion.
Japanese Patent Laid-Open No. 6-80089

  However, in the case of a dam rubber having a root part affixed to the peripheral part on the back surface side of the windshield and a lip part projecting outward from the windshield, a separately formed corner mounting part as described above is used. Since the joint between the lip portion of the corner mounting portion and the lip portion of the other portion appears on the exterior of the vehicle body, the appearance quality is inferior.

  Accordingly, an object of the present invention is to provide a dam rubber mounting method for a windshield that can improve the appearance quality while ensuring sealing performance.

In order to achieve the above object, the invention according to claim 1 is directed to a root portion (for example, affixed to a peripheral portion on the back surface (for example, the back surface 12b in the embodiment) side of a windshield (for example, the rear quarter glass 12 in the embodiment). A root portion 22 in the embodiment and a lip portion (for example, the lip portion 26 in the embodiment) that protrudes outward from the windshield and constitutes the appearance of the vehicle body , and a corner portion (for example, in the embodiment) of the windshield The corner mounting portion (for example, the corner mounting portion 31 in the embodiment) mounted curvedly along the corner portion 14) leaves the lip portion that is the outer diameter side of the curve, and removes the root portion that is the inner diameter side of the curve. A dam rubber having a shape as described above (for example, the dam rubber 15 in the embodiment) is prepared, and the corner mounting portion is After the dam rubber is mounted on the windshield at the root portion while being curved along the corner portion, a root portion (for example, the rear forming root portion 33 in the embodiment) is formed inside the lip portion of the corner mounting portion. It is characterized by being provided separately.

The invention according to claim 2 is the invention according to claim 1, wherein after mounting the dam rubber to the windshield at the root portion while curving the corner mounting portion along the corner portion, A base portion is formed by injection molding inside the curved portion of the lip portion.
The invention according to claim 3 is the invention according to claim 1 or 2, wherein the base portion includes a base portion (for example, the base portion 20 in the embodiment) attached to the peripheral portion on the back surface side of the windshield, and the base portion. A side extension portion (for example, a side extension portion 21 in the embodiment) extending along the surface direction of the windshield, and the lip portion is relative to the base portion of the side extension portion. A vertical extension (for example, a vertical extension 24 in the embodiment) that extends perpendicularly from the opposite side to the side extension, and a side of the vertical extension that is opposite to the side extension A thin wall portion that extends (for example, the thin wall portion 25 in the embodiment), and the corner mounting portion removes the base portion and a portion of the side extension portion on the base portion side, and the vertical extension portion. One side of the vertical extension part of the thin part and the side extension part The dam rubber is bent at the base portion while the corner mounting portion is curved along the corner portion by bringing the vertical extension portion into contact with the edge portion of the windshield. After mounting on the shield, the base and a part of the side extending portion on the base side are separately provided on the curved inner side of the lip portion of the corner mounting portion.

  According to the first aspect of the present invention, a dam rubber having a shape in which the corner mounting portion mounted on the corner portion of the windshield leaves the lip portion and the root portion is removed is prepared, and the corner mounting portion is curved along the corner portion. While the dam rubber is attached to the windshield at the root portion, a root portion is separately provided inside the curved lip portion of the corner attachment portion. Therefore, since the wrinkles do not occur at the root part provided at the corner part of the windshield, sealing performance can be secured, and on the other hand, the lip part constituting the exterior of the vehicle body cannot be joined, thereby improving the appearance quality. Can be made.

  According to the second aspect of the present invention, since the root portion separately provided on the curved inner side of the lip portion is formed by injection molding with respect to the corner mounting portion mounted on the corner portion of the windshield, the sealing performance is improved. Further improvement can be achieved.

  A windshield dam rubber mounting method according to an embodiment of the present invention will be described below with reference to the drawings.

  FIG. 1 is a side view of a vehicle 11, and the windshield dam rubber mounting method of the present embodiment is applied to a fixed rear quarter glass 12 of the windshield provided in the vehicle 11.

  As shown in FIG. 2, the rear quarter glass 12 has a corner portion 14 that is curved with a small radius at the rear portion in the longitudinal direction of the vehicle body, and a dam rubber is provided at the peripheral portion of the rear quarter glass 12 having such a corner portion 14. 15 is mounted.

  As shown in FIG. 3, the dam rubber 15 used in the windshield dam rubber mounting method of the present embodiment is long in a strip shape, and a part thereof is removed after being formed by extrusion molding. The dam rubber 15 is specifically an EPDM sponge rubber.

  The cross section perpendicular to the length direction of the main portion of the dam rubber 15 is as shown in FIG. 4. The dam rubber 15 has a thick base portion 20 and a thinner wall than the base portion 20. A base portion 22 having a laterally extending portion 21 extending in the direction, and a vertically extending portion extending perpendicularly to the laterally extending portion 21 from the opposite side to the base portion 20 of the laterally extending portion 21. 24 and the laterally extending portion 21 of the vertical extending portion 24 from the opposite side along the laterally extending portion 21 and the thinnest thinned portion 25 extending in the direction opposite to the laterally extending portion 21. The lip portion 26 having a shape is provided.

  Further, the dam rubber 15 is formed with a step portion 28 for accommodating the peripheral portion of the rear quarter glass 12 by making the vertical extension portion 24 perpendicular to the side extension portion 21. An adhesive tape 29 is attached to the base portion 20 on the side of the step portion 28 so that the dam rubber 15 is attached to the peripheral portion of the rear quarter glass 12 on the back surface 12b side at the root portion 22. In the state where the dam rubber 15 is affixed to the peripheral portion of the rear quarter glass 12 on the back surface 12b side at the root portion 22, the lip portion 26 projects outward from the rear quarter glass 12 along the surface direction of the rear quarter glass 12. Will do.

  And in the dam rubber mounting method of the windshield of this embodiment, for the dam rubber 15 that is extruded and has a uniform cross-sectional shape over the entire length, first, the corner mounting portion 31 that is mounted on the corner portion 14 of the rear quarter glass 12 is: As shown in FIGS. 3 and 5, the lip portion 26 is left and the base portion 22 in a predetermined range is removed by cutting or the like. Here, the range to be removed is a continuous portion composed of the base portion 20 of the root portion 22 and a part of the side extending portion 21 on the base portion 20 side.

  In the dam rubber mounting method of the windshield of this embodiment, the dam rubber 15 having the corner mounting portion 31 from which the root portion 22 is removed as described above is applied to the vertical extension portion 24 of the dam rubber 15 against the edge of the rear quarter glass 12. While being deformed in accordance with the shape of the rear quarter glass 12 by contact, the adhesive tape 29 attached to the remaining root portion 22 is attached to the peripheral portion of the rear quarter glass 12. At this time, in the corner mounting portion 31 from which the root portion 22 is removed, the remaining lip portion 26 is curved along the corner portion 14 of the rear quarter glass 12, as shown in FIG. At this time, since the lip portion 26 is on the outer diameter side of the curve and the radius of the curve is relatively large, the lip portion 26 is curved following the shape of the corner portion 14 without causing wrinkles or the like.

  The corner mounting portion 31 of the dam rubber 15 attached in this manner is a portion where the base portion 22 is removed although the remaining side extension portion 21 of the base portion 22 overlaps the back surface 12b of the peripheral portion of the rear quarter glass 12. Is a space 32.

  Then, injection molding is performed so as to fill the space 32.

  In other words, although not shown, the corner mounting portion 31 of the dam rubber 15 and the corner portion 14 of the rear quarter glass 12 are set in an injection mold. Then, the cavity of the mold has a shape in which the base portions 20 on both sides are continuous along the corner portion 14 of the rear quarter glass 12 with the space portion 32 of the root portion 22 where the dam rubber 15 remains, and the space portion 32 is formed. The side extending portions 21 on both sides are formed so as to be continuous along the corner portion 14 of the rear quarter glass 12. And resin of the same material as the dam rubber 15 is injected into this cavity. Then, as shown in FIG. 7, there is a rear-forming base portion 34 having a shape in which the base portions 20 on both sides are continued along the corner portion 14 of the rear quarter glass 12 with the space portion 32 of the base portion 22 where the dam rubber 15 remains. At the same time, a rear forming base portion 33 having a rear forming side portion extending portion 35 having a shape in which the side portion extending portions 21 on both sides of the space portion 32 are continued along the corner portion 14 of the rear quarter glass 12 is formed. Will be.

  As described above, the rear-forming root portion 33 is formed so that the dam rubber 15 having the root portion 22 and the lip portion 26 having a substantially uniform cross-sectional shape over the entire length sandwich the corner portion 14 of the rear quarter glass 12. It will be attached to the periphery. In addition, since the lip portion 26 constituting the surface of the vehicle body is not formed later and is formed at the time of extrusion molding, as shown in FIG. 8, it has a continuous surface shape with no joints or the like. Note that a joint is formed at the joint portion of the post-forming base portion 33, but this portion is covered with the black ceramic portion at the peripheral edge of the rear quarter glass 12.

  According to the dam rubber mounting method of the windshield of the present embodiment described above, the corner mounting portion 31 mounted on the corner portion 14 of the rear quarter glass 12 serving as the windshield leaves the lip portion 26 and the root portion 22 is removed. The dam rubber 15 having a shape is prepared, and the dam rubber 15 is mounted on the rear quarter glass 12 at the root portion 22 while the corner mounting portion 31 is curved along the corner portion 14, and then the lip portion 26 of the corner mounting portion 31 is bent inside the lip portion 26. A post-forming root portion 33 is separately provided. Therefore, the dam rubber 15 can secure sealing performance because the root portion 22 affixed to the rear quarter glass 12 is not wrinkled, and further, the lip portion 26 constituting the exterior of the vehicle body cannot be joined. Therefore, the appearance quality can be improved.

  Moreover, since a rear-forming root portion 33 provided separately on the curved inner side of the lip portion 26 with respect to the corner mounting portion 31 mounted on the corner portion 14 of the rear quarter glass 12 is formed by injection molding, sealing performance is improved. Further improvement can be achieved. The post-forming base portion 33 can be formed in advance by molding into a curved shape that matches the shape of the corner portion 14, and can be bonded or the like so as to fill the space portion 32 later. More preferably, it is formed by injection molding.

1 is a side view of a vehicle to which a windshield dam rubber mounting method of the present invention is applied. It is the figure which looked at the rear quarter glass to which the dam rubber mounting method of the windshield of this invention was applied from the compartment side. It is the elements on larger scale which show the dam rubber used with the dam rubber mounting method of the windshield of this invention. It is an expanded sectional view which follows the AA line in FIG. It is an expanded sectional view which follows the BB line in FIG. The dam rubber mounting method of the windshield of this invention is shown, and it is the elements on larger scale which looked at the state which affixed the dam rubber on the rear quarter glass from the compartment side. The dam rubber mounting method of the windshield of this invention is shown, and it is the elements on larger scale which looked at the state which formed the rear formation root part in the space part of the dam rubber from the vehicle compartment side. The dam rubber mounting method of the windshield of this invention is shown, and it is the elements on larger scale which looked at the state which formed the rear formation root part in the space part of the dam rubber from the vehicle outer side.

Explanation of symbols

12 Rear quarter glass (windshield)
12b Back surface 14 Corner portion 15 Dam rubber 22 Root portion 26 Lip portion 31 Corner mounting portion 33 Rear forming root portion (root portion)

Claims (3)

It has a root part that is affixed to the peripheral edge of the back side of the windshield and a lip part that projects outward from the windshield and forms the exterior of the vehicle body, and is curved and mounted along the corner part of the windshield. Prepare a dam rubber having a shape in which the corner mounting portion is the outer diameter side of the curve, leaving the lip portion and removing the root portion being the inner diameter side of the curve ,
The corner mounting portion is curved along the corner portion, and after the dam rubber is mounted on the windshield at the root portion, a root portion is separately provided inside the lip portion of the corner mounting portion. Windshield dam rubber mounting method.   The corner mounting portion is curved along the corner portion, and the dam rubber is mounted on the windshield at the root portion, and then the root portion is formed by injection molding inside the lip portion of the corner mounting portion. The method for attaching a dam rubber to a windshield according to claim 1. The root portion has a base portion that is affixed to a peripheral portion on the back surface side of the windshield, and a laterally extending portion that extends from the base portion along the surface direction of the windshield,
The lip portion includes a vertical extension portion extending perpendicularly to the side extension portion from a side opposite to the base portion of the side extension portion, and the side extension portion of the vertical extension portion. And a thin portion extending from the opposite side,
The corner mounting part removes the base part and a part of the side extension part on the base part side, and the vertical extension part, the thin part, and the side extension part on the side of the vertical extension part. Formed in a shape that leaves a part of
The corner attachment portion is attached to the windshield at the base portion while the corner attachment portion is bent along the corner portion by bringing the vertical extension portion into contact with an edge portion of the windshield, and then the corner attachment portion is attached. The dam rubber mounting method for a windshield according to claim 1 or 2, wherein the base portion and a part of the side extending portion on the base side are separately provided inside the curved portion of the lip portion.

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