JP3072076B2 - Molding for rear window glass and extrusion molding method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gap formed between a periphery of a window opening of a body panel and a periphery of a rear window glass assembled to the window opening (hereinafter simply referred to as a "mounting gap for mounting"). ")
The present invention relates to a rear window glass molding for decorating the gap and an extrusion molding method therefor.

[0002]

2. Description of the Related Art In a molding for a rear window glass of an automobile, a spoiler projection having a large thickness is provided in an upper molding portion mounted on the upper portion, so that an air flow flowing from a roof surface during traveling is provided. Rectified, thereby reducing the air resistance. However, such a spoiler projection is not provided in each of the molding portions mounted on both side portions of the rear window glass.

For this reason, in the conventional molding for rear window glass, at the corner,
Since two types of molding members with different cross-sectional shapes are joined via a corner joint, the joint is recognized, and the color tone, gloss, etc. of each separately molded molding member and the corner joint are slightly different. However, there is a disadvantage that the decorative effect as a molding is reduced. Also, a step or gap is generated at the joint between each molding member and the corner joint, and garbage accumulates in this part, or the bristle of the brush gets caught in the step at the time of car washing, and is damaged, and furthermore, This caused abnormal noise due to the vibration at the time.

[0004]

DISCLOSURE OF THE INVENTION The present invention relates to a conventional molding in which a single molding that is continuously and integrally molded is used to close the molding mounting gap formed on the peripheral edge of the rear window glass. It is an object of the present invention to improve both the strength and the appearance of the molding by eliminating the corner joint which has been used, and to increase the molding efficiency of the molding.

[0005]

SUMMARY OF THE INVENTION The present invention for solving this problem comprises a leg portion and a decorative portion integrally formed on the upper end portion of the leg portion. A vertical mounting molding portion to be mounted, a horizontal mounting molding portion attached to the horizontal mounting portion and having a spoiler projection are continuously and integrally formed via a corner connecting portion, and the upper and lower surfaces of the decorative portion are A first decorative surface that is continuous over the entire length of the molding and a mounting surface that is continuous with the legs are provided, respectively, and the first mounting surface is provided on the side of the horizontal mounting molding portion.
A rear window glass molding provided with a second decorative surface different from the decorative surface, wherein the corner connection portion extends from a vertical mounting portion to a horizontal mounting portion of the rear window glass. The thickness of the decorative surface is gradually increased while maintaining the thickness unevenness in the width direction. It is characterized in that the second decorative surface is formed gradually wider on the upper surface of the decorative portion in accordance with the change.

Since the entire molding is continuously formed and integrated, there is no connection at the corner,
The appearance is improved, and the strength of the corners is increased.
Also, beside the decorative part of the horizontal mounting molding part,
The decorative surface of the vertical mounting molding portion has a shape twisted laterally to form a first decorative surface continuous over the entire length, and the upper surface of the decorative portion has an air flow rectifying surface. Since the second decorative surface that performs the function is provided, and the first decorative surface is continuous over the entire circumference, the appearance of the entire molding is also enhanced. Further, according to the extrusion molding method of the present invention, among the plurality of dies constituting the die device, the first or second shaping die is rotated in the second direction orthogonal to the first direction which is the extrusion direction. By moving, the vertical mounting molding portion having only the first decorative surface and the horizontal mounting molding portion having the first and second decorative surfaces and functioning as a spoiler projection can be continuously formed.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in more detail by way of examples. FIG. 1 is a perspective view of an automobile in which a molding M according to the present invention is mounted on the periphery of a rear window glass G, FIG. 2 is an enlarged sectional perspective view of a portion indicated by A in FIG. 1, and FIG. is Z ₁ -Z ₁ taken along line enlarged cross section of FIG. 2, FIG. 4 is a Z ₂ -Z ₂ line sectional view of FIG. The molding M shown in FIG. 1 and FIG. 4 is mounted on the periphery of the rear window glass G of the automobile. The moldings Ma, Mb, Mc mounted on the upper portion, the side portion, and the lower portion are respectively provided. It is continuously molded. In this molding M, a leg portion 43 is constituted by a holding lip 41 and a locking lip 42, and the leg portion 43 has the same shape in each of the molding portions Ma, Mb, Mc. Further, the shape of the decorative portion 44 of each of the molding portions Mb and Mc of the side portion and the lower portion is substantially the same and has a lip shape, but the decorative portion 44 of the upper molding portion Ma is different from the other molding portions. Mb, Mc
The shape of the spoiler is different from that of the spoiler.

That is, the decorative portion 44 of the upper molding portion Ma is formed so as to become thicker in thickness from the outer peripheral side to the inner peripheral side on its cross section, The decorative surface 44a has a curved surface shape,
The decorative surface 44a of the surface of the decorative portion 44 of each of the molding portions Mb and Mc of the side portion and the lower portion is continuous with the decorative surface 44a, but the second decorative surface 44b on the upper surface is flat to function as an airflow rectifying surface. It is in shape. For this reason, on the upper surface and the lower surface of the decorative portion 44, a first decorative surface 44a and a mounting surface 44c are respectively provided continuously over the entire length of the molding M. Then, as shown in FIG. 2, the decorative portion 44 in the corner connecting portion Md connecting the molding portions Ma and Mb of the side portion and the upper portion is thicker on the inner circumference side than on the outer circumference side in cross section, as shown in FIG. While maintaining such an uneven thickness state, the first decorative surface 44a is attached to the mounting surface 4a.
4c, the degree of twisting gradually increases from the side portion toward the upper portion, and the width of the decorative portion 44 gradually increases in the above direction. ing. Therefore, as described above, the first decorative surface 44a connected to the decorative surface 44a of the side molding portion Mb is formed on the inner peripheral surface of the decorative portion 44 of the upper molding portion Ma, and the decorative portion 44 Another second decorative surface 44b is formed on the upper surface. The second decorative surface 44b serving as an airflow rectifying surface is substantially flush with a body panel 45 described later.

Further, a fastener member 47 is bonded to the inclined portion 45a of the body panel 45 via a double-sided tape 46, and the molding M is formed by the engagement between the fastener member 47 and the locking lip 42 so that the rear window glass G is formed.
Attached to the periphery of. 2 to 4,
Reference numeral 12 denotes a sealant that fixes the peripheral portion of the rear window glass G to the body panel 45, and reference numeral 14 denotes a dam rubber for preventing the sealant from flowing out.

The molding M is formed by the apparatus shown in FIG. This molding apparatus has an extrusion molding port 4 corresponding to the cross-sectional shape of the upper molding part Ma.
8 and a movable forming die 53 rotatably mounted on the basic forming die 49 via a rotating shaft 51 and a guide body 52. This movable forming die 5
3, a rack 54 is formed on an outer peripheral portion of a movable forming die 53 provided with a substantially arc-shaped forming surface 53 a corresponding to the shape of the decorative surface of each part of the molding M, and a drive shaft 56 of a drive motor 55 is provided. Pinion 5 attached to the tip of
7 and the rack 54 are meshed with each other.
Forming die 53 with respect to extrusion opening 48 provided in
A part of the molding surface 53a enters and retracts, and a part of the extrusion molding port 48 is closed, so that a decorative surface having a different shape can be formed for each different molding part. FIG.
The state indicated by a solid line in FIG. 4 is a molding state of the upper molding part Ma. In this state, when the movable molding die 53 is rotated clockwise to close a part of the extrusion molding port 48, the side part and the lower part are formed. The process moves to the molding of the molding parts Mb, Mc of the part, and three different molding parts Ma, Mb, Mc are continuously molded.

[0011]

The molding for the rear window glass according to the present invention is continuously formed and integrated, so that the connecting portion is eliminated at the corner portion and the appearance is improved. Strength is also increased. Also,
The decorative surface of the vertical mounting molding and the first decorative surface of the horizontal mounting molding are continuous over the entire circumference, and this structure also enhances the appearance of the molding.

According to the molding extrusion method of the present invention, during the molding extrusion, the first or second molding die is moved in the second direction intersecting the first direction which is the extrusion direction. And move relatively to
A rear window with a decorative part that functions as a spoiler projection by changing the cross-sectional shape of the molding to bring it closer to change the thickness in an uneven thickness and changing the peripheral length of the decorative part on the cross section Continuous molding of glass molding.

[Brief description of the drawings]

FIG. 1 is a perspective view of an automobile in which a molding M according to the present invention is mounted on the periphery of a rear window glass G.

FIG. 2 is an enlarged sectional perspective view of a portion indicated by A in FIG.

FIG. 3 is an enlarged sectional view taken along line Z ₁ -Z ₁ of FIG. 2;

FIG. 4 is a sectional view taken along line Z ₂ -Z ₂ of FIG. 2;

FIG. 5 is a front view of a molding apparatus for molding M according to the present invention.

[Explanation of symbols]

G: Rear window glass M: Molding Ma: Upper molding part (horizontal molding part) Mb: Side-moulding part (vertical mounting molding part) Mc: Lower molding part (horizontal molding part) Md: corner connection part 43: leg Part 44: decorative part 44a: first decorative surface 44b: second decorative surface 44c: mounting surface 49: basic forming die (modeling die) 53: movable forming die (modeling die)

Continuation of the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B60J 1/18 B29C 47/12 B60J 1/02 111

Claims (3)

(57) [Claims] 1. A vertical mounting molding portion, which comprises a leg portion and a decorative portion integrally formed on an upper end portion of the leg portion, is mounted on a vertical mounting portion of the rear window glass, and is mounted on the horizontal mounting portion. A horizontal mounting molding portion having a spoiler protrusion is continuously and integrally formed via a corner connection portion; and a first decorative surface continuous over the entire length of the molding is provided on an upper surface and a lower surface of the decorative portion. And a mounting surface which is continuous with the leg portion, and a second decorative surface different from the first decorative surface is provided on a side of the horizontal mounting molding portion. In the corner connection portion, the decorative portion of the portion, from the vertical mounting portion of the rear window glass to the horizontal mounting portion,
While maintaining the uneven thickness in the width direction, the thickness gradually increases, and the first
The decorative surface is formed in a state where the decorative surface is twisted laterally relative to the mounting surface, so that the second decorative surface is formed on the upper surface of the decorative portion with a change in the peripheral length of the decorative surface. A rear window glass molding characterized by being formed gradually wider. 2. The molding for rear window glass according to claim 1, wherein the second decorative surface is formed in a planar shape. 3. Using a die apparatus having a plurality of dies,
In a method for extruding a molding for a rear window glass, wherein a decorative portion functioning as a spoiler projection is provided on a part of the molding in a longitudinal direction while extruding the molding, a plurality of dies constituting the die device are provided. The first and second molding dies are used to continuously form the first exterior decoration surface and the interior mounting surface of the molding over the entire length, and the first or second molding die is used to form the exterior and exterior surfaces. The first decoration surface is formed by continuously extruding the entire length while forming an outdoor-side second decoration surface different from the first decoration surface, and the first or second molding die is formed in a first direction in an extrusion direction. By rotating and moving in the second direction that intersects the direction of the molding and moving the molding relatively apart and approaching, the cross-sectional shape of the molding is changed to change the thickness in an uneven thickness. , By changing the circumferential length of the decorative portion on the section, an extrusion molding method of a rear window glass for molding, which comprises forming the chamber outer second decorative surface.