JPH0717615U - Car windshield seal structure - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a windshield sealing structure that facilitates attachment of the sealing body to the cowl top cover and ensures secure adhesion, and ensures the adhesion of the sealing body to the windshield surface. To do. [Constitution] Cowl top cover mounting part (13) of the seal body (11)
Is composed of a hard synthetic resin material and the windshield
Since the seal part (12) that comes into close contact with (2) is made of a soft material and is integrally connected, not only the seal function but also the mounting to the cowl top cover body (16) is easy and reliable, and the seal body (11) and cowl top cover
When (1) and (1) are adhesively fixed, no partial adhesion failure occurs, and there is no risk of peeling.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a structure of a windshield seal member which is attached to close a gap between a windshield of a vehicle and a cowl top cover. More specifically, it secures the ease of attaching the cowl top cover to an attaching end portion and removes it. The present invention relates to a windshield seal body having a structure that is difficult to do.

[0002]

[Prior art]

 At the edge of the cowl top cover facing the windshield, a seal body made of a soft rubber material or a soft synthetic resin material, which is elongated and has a large flexibility and substantially equal to the vehicle width, is adhered and fixed. The conventional cowl top cover body and the seal body are attached to each other by a fitting step portion having a substantially right-angled cross section formed along the edge of the attachment portion of the seal body 11 'as shown in FIG. The rear end surface and the rear end bottom surface of the seal body mounting portion 14 'having a rectangular cross section protruding to the rear surface of the end portion of the cowl top cover body 16' are applied and fixed by adhesive.

[0003]

[Problems to be solved by the device]

 When the seal body 11 'is attached to the seal body mounting portion 14' of the cowl top cover 1 ', the inner surface of the fitting groove is preliminarily applied with an adhesive along the same step portion of the seal body 11'. The end edge of the seal body mounting portion 14 'of the cowl top cover 1'is fitted into the step portion and fixed by adhesion. In this case, since the fitting step portion of the thin and elongated seal body 11 'has no rigidity, it is difficult to align it with the edge of the cowl top cover 1'. Therefore, the fitting work is troublesome, and not only the working efficiency is lowered, but also the adhesion failure is likely to occur.

Further, since the seal body 11 ′ made of the soft material is long, the seal body 11 ′ not only expands and contracts due to heat, but is also attached in a state of being extended in all directions when the cowl top cover is attached. Many of them return to their original lengths over time, and are extremely easy to peel off due to the expansion and contraction of the seal itself. Moreover, when a part of the seal body 11 'begins to peel off, as shown in FIG. 13, the seal body 11' hangs down from that part, and the peeled part increases more and more, the adhesive holding force also decreases, and further peeling is induced.

On the other hand, the cowl top cover 1 ′ made of a synthetic resin molded body is apt to cause molding errors and sink marks due to its structure, and in particular, the mounting portion 14 that is a portion for mounting the seal body 11 ′. Since ′ is likely to be wavy in the length direction, it is preferable to make it as thick as possible. As described above, when the seal body mounting portion 14 'is formed to have a thick rectangular cross-section by projecting to the rear surface side, the back surface of the seal body mounting portion 14' of the cowl top cover 1'is longitudinal. A sink mark with an arcuate cross section is generated along the center of the. Due to the sink mark, in addition to the above-mentioned poor adhesion, a further poor adhesion is induced between the seal body 11 'and the seal body 11'.

[0006] Such adhesion failure causes a reduction in the sealing function, and rainwater, dust and the like penetrate the glass surface through the gap between the windshield 2 and the seal body 11 'into the air box (not shown), and the air conditioning is performed. The equipment may be damaged, or the dust collected in the air box may corrode to give off a bad odor, which may enter the passenger compartment and deteriorate the living environment inside the passenger compartment.

The present invention was developed in view of the above-mentioned problems, and an object thereof is to facilitate the attachment of the seal body to the cowl top cover and ensure the adhesion, and to attach the seal body to the windshield surface. An object of the present invention is to provide a front glass seal structure that ensures the adhesiveness of the seal body.

[0008]

[Means for Solving the Problems]

 To achieve the above object, the present invention provides a windshield seal structure in which a gap between a front lower end of a windshield of an automobile and a rear end of a cowl top cover is closed by a seal body. The seal body has a soft seal portion that is in close contact with the front lower end of the windshield, and a hard synthetic resin mounting portion that is integrally formed on the front side of the soft seal portion, and the mounting portion is located behind the cowl top cover. Various structures are used for automobile windshield seal structures, which are characterized by being fixedly attached to the ends.

Further, according to a preferred embodiment of the present invention, the mounting portion has a fitting structure for sandwiching the rear end mounting portion of the cowl top cover.

[0010]

[Action]

 In the above-mentioned seal structure, when the seal body has a hard synthetic resin mounting part having a substantially rectangular cross section extending horizontally from the base end face of the soft seal part through the step part, Apply adhesive to the base end surface of the soft seal part and the upper surface of the hard synthetic resin mounting part, press the end surface of the base part to the rear end surface of the seal body mounting part of the cowl top cover, and press the hard synthetic resin. The upper surface of the manufactured mounting portion is pressed against the lower surface of the seal body mounting portion to be bonded and integrated. Since the mounting work at this time is the bonding between the rigid synthetic resin mounting part and the seal body mounting part, which have rigidity to each other, it is easy to align the position, and even the base end face of the soft seal part can be bonded uniformly. This makes it possible to perform strong adhesion without causing partial adhesion failure as in the past.

Further, the structure of the hard synthetic resin mounting portion of the seal body has a substantially U-shaped cross section, and the cross-sectional shape of the seal body mounting portion has a substantially U-shaped cross section. If the shape fits in the opening, make sure that the opening end of the hard synthetic resin mounting part and the rear end surface of the sealing body mounting part face each other, and attach the opening end of the rigid synthetic resin mounting part to the sealing body. It can be easily attached by simply fitting it on the rear edge of the part or by sliding the mounting part of the seal body along the opening edge from the side of the mounting part made of hard synthetic resin. is there. With such a structure, when the opening end of the mating hard synthetic resin mounting part is fitted to the seal mounting part, even if there is a gap between the two, it will not easily come off. No need for gluing. Moreover, since the windshield normally has a curvature in a plan view, when the seal body is brought into close contact with the glass surface, elastic force acts on the seal body 11 to fit the semi-elliptical cross section of the seal body mounting portion. The attachment part is strongly pressed against the inner surface of the hard synthetic resin attachment part, and movement in the vehicle width direction is blocked. Of course, the hard synthetic resin mounting portion and the seal body mounting portion may be bonded and fixed with an adhesive.

[0012]

【Example】

 Hereinafter, the present invention will be described in detail with reference to illustrated embodiments. 1 to 3 are cross-sectional views of a main part showing a mounting state of a seal body having a typical cross-sectional shape of the present invention and a cowl top cover, and FIG. 4 is a soft seal part and a hard synthetic resin mounting part of the seal body. Fig. 5 to Fig. 7 are cross-sectional views of a main part showing a mounting state of a seal body having another typical cross-sectional shape of the present invention and a cowl top cover, and Fig. 8 is the same seal. Fig. 9 is an explanatory view of how the body and cowl top cover are attached. Fig. 9 is a functional explanatory view of the same seal structure. 11 and 12 are perspective views showing the entire structure of the cowl top cover. In the following description of each embodiment, the member names and reference numerals of corresponding parts are used in a unified manner.

The seal body 11 according to the present invention is extended substantially horizontally from the end face of the soft seal portion 12 and the base portion 12a of the soft seal portion 12 which is in close contact with the front lower end portion of the windshield 2, and is attached to the cowl top cover 1. And a mounting portion 13 made of hard synthetic resin. According to this embodiment, the soft seal portion 12 is made of soft vinyl chloride having a Shore hardness of 50 ° to 70 °, and the hard synthetic resin mounting portion 13 is made of a material having a Shore hardness of 75 ° to 95 °. Hard vinyl chloride is used.

Further, the seal body 11 is manufactured by integrally molding two kinds of synthetic resins, hard and soft, by injection molding or extrusion molding. In this molding, it is necessary for the two types of synthetic resin materials to have an affinity for each other so that the two types of synthetic resins can be integrally molded in a state where they are firmly bonded to each other. As in the example, use the same material. The hardness depends on the amount of additives such as a plasticizer.

As shown in the drawings, the basic cross-sectional shape of the soft seal portion 12 has a substantially wedge-shaped cross-section in which both upper and lower surfaces bulge upward and their curved surfaces meet on the windshield side. As shown in FIGS. 2, 5 and 6, projections 12b are continuously or intermittently provided on the lower surface of the wedge-shaped base 12a in the lengthwise direction, or as shown in FIGS. 3 and 7. A tongue piece 12c is formed from the lower surface of the base portion 12a and has a predetermined thickness and extends forward substantially parallel to the lower surface.

In the embodiment shown in FIGS. 1 to 3, the hard synthetic resin mounting portion 13 is formed so as to extend forward from the end face of the base end portion 12a of the soft seal portion 12. In order to further strengthen the connection, it is desirable that the end face of the base portion 12a of the soft seal portion 12 and the joint end face of the hard synthetic resin attachment portion 13 have a fitting structure as shown in FIG. Further, when the soft seal portion 12 has the tongue piece 12c on the base portion 12a, the end face of the base portion 12a and the upper surface of the tongue piece 12c are adjacent to the hard synthetic resin attachment portion 13 as shown in FIGS. Combine with each face. Therefore, the lower end edge of the tip of the hard synthetic resin mounting portion 13 does not hit the windshield 2, and therefore no squeaking noise is generated. The cross-sectional shape of the hard synthetic resin mounting portion 13 is substantially rectangular with the lower surface slightly inclined in the embodiments shown in FIGS. 1 to 3, but in the embodiments shown in FIGS. The U-shaped cross section is formed, and the locking pieces 13a are formed along the opposing inner surfaces of the open ends thereof. This strengthens the attachment between the cowl top cover 1 and the seal body 11. Further, when the soft seal portion 12 does not have the tongue piece 12c, the tip end lower end edge of the hard synthetic resin mounting portion 13 hits the windshield 2 to generate a squeaking noise, and therefore the same as shown in FIGS. 2 and 6. A protrusion 12d made of the same material as that of the soft seal portion 12 is provided on the lower end edge of the tip.

On the other hand, the cowl top cover 1 to which the seal body 11 is attached is made of a synthetic resin, and the seal body 11 is arranged along the front surface of the lower end portion of the front glass 2 as shown in FIGS. A seal body mounting portion 14 for tightly adhering the cowl top panel 1 and a panel mounting portion 15 for fixing the cowl top cover 1 to the vehicle body panel 3 at the end opposite to the seal body mounting portion 14 The cowl top cover main body 16 has a rectangular plate shape. A louver portion 17 for guiding the outside air to the outside air introduction port 3a formed in the vehicle body panel 3 is provided at the center of the cowl top cover body 16.

In the present embodiment, the structure of the seal body mounting portion 14 formed on the windshield side edge of the cowl top cover 1 has the same structure as the surface of the cowl top cover body 16 as shown in FIGS. The seal body mounting portion 14 is formed so as to be flush with the back surface of the seal body mounting portion 14 so as to have an inclined surface with a slight increase in thickness toward the edge thereof. Of course, the cross-sectional shape such as a simple rectangular cross-section or a semi-elliptical cross-section can be used. In this case, it is necessary to match the shape of the end face of the base portion 12a of the other soft seal portion 12 with the shape of the seal body attachment portion 14.

However, if the cross-sectional shape of the seal body mounting portion 14 is set as in the illustrated example, the position of the sink mark moves to the end edge side during molding of the cowl top cover body 16, and the thickness is the same before and after. Unlike the set conventional seal body mounting portion 14 ′, sink marks such that the central portion along the length direction of the rear surface of the protruding portion becomes arcuate in cross section are not generated, and the seal body mounting portion 14 ′ is not generated. This is a preferred embodiment because the mounting surface can be firmly adhered to the entire bonding surface of the seal body 11. Moreover, the cross-sectional shape allows the soft seal portion 12 of the seal body 11 to be strongly pressed against the front surface of the windshield 2, improving the sealing function.

Further, in the embodiment shown in FIGS. 5 to 7, the seal body mounting portion 14 is made to match the end shape of the hard synthetic resin mounting portion 13 of the seal body 11, and the tip is semi-elliptical. It has a thin plate-like fitting structure with a bulging cross section. With this structure, when the opening end of the mating hard synthetic resin mounting portion 13 is fitted to the seal body mounting portion 14, even if a gap is provided between them to facilitate insertion, Since the windshield 2 has a curvature in a plan view, when the sealing body 11 is brought into close contact with the glass surface, elastic force acts on the sealing body 11 as shown by an arrow in Fig. 9 (a). As shown in FIG. 2B, the fitting portion having a semi-elliptical cross section of the seal body mounting portion 14 is strongly pressed against the locking piece 13a of the hard synthetic resin mounting portion 13 to prevent movement in the vehicle width direction. Of course, the hard synthetic resin mounting portion 13 and the seal body mounting portion 14 can be bonded and fixed with an adhesive.

Now, in the above-mentioned sealing structure, in order to attach the seal body 11 shown in FIGS. 1 to 3 to the cowl top cover body 16, the base 12a end surface of the soft seal portion 12 of the seal body 11 and the hard synthetic resin attachment portion are attached. An adhesive is applied to the upper surface of 13 and the end surface of the base 12a is pressed against the rear end surface of the seal body mounting portion 14 of the cowl top cover body 16, and the upper surface of the hard synthetic resin mounting portion 13 is sealed with the seal. It is pressed against the lower surface of the body attaching portion 14 to be integrally bonded. Since the mounting work at this time is the bonding between the rigid synthetic resin mounting portion 13 and the seal body mounting portion 14 which have rigidity to each other, the positioning is easy and the base end surface of the soft sealing portion is also uniform. Adhesive is achieved, and strong adhesion is possible without causing partial adhesion failure as in the past.

The seal structure shown in FIGS. 5 to 7 enables stronger mounting than the above-described mounting. That is, in order to attach the seal body 11 to the cowl top cover body 16, as shown by the arrow in FIG. 8, the opening end face of the hard synthetic resin attachment part 13 and the rear end face of the seal body attachment part 14 are opposed to each other, and It is possible to easily attach the opening end of the hard synthetic resin mounting portion 13 to the rear end edge of the seal body mounting portion 14 by a simple operation, or the side of the hard synthetic resin mounting portion 13 side. Alternatively, the seal body mounting portion 14 can be slidably mounted along the opening end. In the case of this embodiment, sufficient attachment strength can be obtained as described above by simply fitting the both, but it is also possible to interpose an adhesive between the two to integrally bond them.

It should be noted that the above-described embodiments are merely representative examples of the present invention, and therefore, the present invention is not limited to the illustrated examples, and various modifications can be made. For example, FIGS. In the example shown, the soft seal portion 12 and the hard synthetic resin mounting portion 13 are integrally formed at a substantially right angle. However, if this angle is an acute angle, the seal body 11 is attached to the cowl top cover body 16. The work is further facilitated, and since the lower inclined surface of the seal body mounting portion 14 is formed into a uniform flat surface without sink marks as described above, the adhesion with the adhesive surface of the seal body 11 is strengthened. As a result, the rear part of the lower inclined surface floats up from the windshield surface, and even if the soft seal portion 12 of the seal body 11 is strongly pressed against the windshield surface by its tip, the seal body 11 is removed from the cowl top cover body 16. Durability is ensured without peeling and loss of the sealing function.

[0024]

[Effect of device]

 As is clear from the above description, according to the present invention, the cowl top cover mounting portion of the seal body is made of a hard synthetic resin material, and the seal portion to be adhered to the windshield is made of a soft material, so that both are sealed. Since they are integrally connected, the sealing function is easier and more secure to attach to the cowl top cover, and no partial adhesion failure occurs when the seal body and cowl top cover are adhesively fixed. There is no risk of peeling.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a typical cowl top cover of the present invention showing a seal body mounting structure of the same.

FIG. 2 is a sectional view of a seal body mounting portion showing a modified example of the seal body.

FIG. 3 is a cross-sectional view of a seal body mounting portion showing still another modified example of the same seal body.

FIG. 4 is a cross-sectional view showing an example of a connecting structure between a soft seal portion and a hard synthetic resin attachment portion of the seal body.

FIG. 5 is a cross-sectional view of another typical cowl top cover of the present invention showing the seal body mounting structure.

FIG. 6 is a sectional view of a seal body mounting portion showing a modified example of the seal body.

FIG. 7 is a cross-sectional view of a seal body mounting portion showing still another modified example of the same seal body.

FIG. 8 is an explanatory view showing a mounting state of the seal body and the cowl top cover.

FIG. 9 is a functional explanatory diagram of the seal body and the cowl top cover.

FIG. 10 is a sectional view showing how the cowl top cover is attached to the vehicle body panel.

FIG. 11 is a perspective view showing the entire cowl top cover.

FIG. 12 is a sectional view of a conventional cowl top cover showing a seal body mounting structure of the same mounting portion.

FIG. 13 is an explanatory view showing a defect of the seal body mounting structure.

[Explanation of symbols]

 1 Cowl top cover 2 Windshield 11 Seal body 12 Soft seal part 12a Base part 12b Projection part 12c Tongue piece 13 Hard synthetic resin mounting part 13a Locking piece 14 Seal body mounting part 16 Cowl top cover body

Claims (2)

[Scope of utility model registration request] 1. A windshield sealing structure for closing a gap between a front lower end of a windshield of an automobile and a rear end of a cowl top cover with a seal, wherein the seal is a front lower end of the windshield. A soft seal portion that is in close contact with the portion and a hard synthetic resin mounting portion that is integrally formed on the front side of the soft seal portion, and the mounting portion is fixed to the rear end portion of the cowl top cover. A windshield seal structure for automobiles. 2. The windshield sealing structure for an automobile, wherein the mounting portion has a fitting structure for sandwiching a rear end mounting portion of a cowl top cover.