JPS5814092Y2 - Corner structure of automotive weather strip - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a corner structure of a weather strip for an automobile.

Weather strips for automobiles need to have the performance of preventing vibrations from being transmitted to the window glass when the vehicle is running, and sealing against wind and rain. As shown in the figure, the outer surface has a molding groove 6 that widens towards the end for attaching a metal molding 7, and a body lip 8 extends below the molding groove 6.
- A glass groove 5 having a substantially U-shaped cross section is formed on the circumferential surface 1b, and a linear 11th J rib 5a and a second rib 5b are formed protrudingly opposite to the inner surface of the glass groove 5, and the bottom of the glass groove 5 is similarly formed. A linear third rib 5c is projected and shaped, and further on the other side 1a,
A flange groove 3 with an inverted U-shaped cross section that is fitted into the body 2
Also used is a weather strip 1 having a cross-sectional shape that protrudes a water-retaining lip 9 that contacts the body 2 and prevents wind and rain from entering the interior.

At the corner portion A of the body 2, the weather strip 1 has linear portions B having the same new surface shape connected to both ends as shown in FIG.
is fitted into the body 2, and the flange groove portion 3 is fitted into the body 2 and assembled.

Weatherstrip 1's sealing performance against wind and rain is extremely heavy, but conventionally the window glass or body was sealed using only the elastic force of rubber, and the building materials for the body were highly sensitive to precision, dimensional accuracy of the weatherstrip, and assembly. Due to defects in the condition of the glass, it is difficult to maintain a perfect seal, and there are problems such as a high frequency of water leakage, especially at the corners, so fill the glass grooves 5 with sealant. The current situation is that countermeasures are being taken.

In view of the above, the object of this invention is to provide a corner structure of an automobile weather strip that prevents water leakage by improving the sealing properties of the assembly parts and does not require a sealant.

The configuration of this invention will be explained below based on the illustrated embodiment.

As shown in FIGS. 3 to 6, a weather strip 11 is made of an elastic polymer material such as synthetic rubber, and has a molding groove 16 on its outer surface that widens towards the end for attaching the metal molding 11. A body lip 18 is extended downwardly to contact the body 12 and prevent wind and rain from entering into the interior. A draining lip 19 is formed in a protruding manner to prevent water from entering the inside.

Further, the other circumferential surface 11b of the weather strip 11 has a cross section U.
A corner piece 15 is formed in the groove.
The insert member 14 equipped with the is fitted by adhesive or other means.

The insert member 14 is a metal member that is bent in advance into a "<" shape according to the curved state of the weather strip 11 at the corner portion A, and has a large number of holes 14a on the side and bottom surfaces to improve adhesiveness. is listed.

The insert member 14 is made of a rubber-like elastic material that is softer than the other rubber-like elastic material material constituting the weather strip 11, and preferably has a hardness of about 3 on the JISA hardness scale.
A corner piece 15 (sponge or the like) having a hardness difference of 0 degrees or more is attached.

The corner piece 15 is formed with a glass groove 20 for fitting and roughly holding the end of the window glass 21. On the inner surface of the glass groove 20, opposing linear first ribs 1 are formed.
5a and a second rib 15b are formed to protrude, and a linear third rib 15c is similarly formed to protrude from the bottom.

It goes without saying that the width of the glass groove 20 near the opening is slightly narrower than the width near the bottom, and the width near the bottom is slightly narrower than the thickness of the window glass 21.

Next, the usage of this invention will be explained.

The general function is that it is attached to the front window and rear window of the body 12, and the window glass 21 is fitted into the glass groove 20 to prevent wind and rain from entering the inside of the body 12.

More specifically, the corner piece 15 is made of a rubber-like elastic material that is softer than other polymer materials, and the corner piece 15 is made of a rubber-like elastic material that is softer than other polymeric materials,
Since the 00 width is formed to be slightly narrower than the window glass 21, when assembled, the corner piece 15 is in close contact with the insertion part of the window glass 21, as shown in FIG. piece 1
5 is a surface contact.

Furthermore, when the insert member 14 is fitted inside the weather strip 11, in the assembled state, the rigidity of the insert member reduces deformation of the corner portion and reduces the pressing force of the weather strip against the window glass 21 and the body 12. increase

Therefore, the sealing performance between the body 12 and the weather strip 11 is also improved.

As mentioned above, this device has a configuration in which an insert member with a corner piece that is softer than other components is inserted into the weather strip. The contact area between the window glass and the window glass can be made into a surface contact, increasing the sealing area and further improving the sealing performance.
It is possible to prevent wind and rain from entering the room.

Further, since the rigidity of the insert member increases the force with which it is pressed against the body, it has excellent effects such as further improving the sealing performance between the body and the weather strip.

Furthermore, since the sealing performance can be improved, filling with a sealant is not necessary, and assembly costs can be reduced, and the assembly is also easy to assemble.

It should be noted that the invention is not limited to the embodiment shown in the figure (although various modifications can be made without departing from the spirit of the invention; for example, the three Ribs do not necessarily need to be formed.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the corner part of a conventional weather strip, Fig. 2 is a sectional view showing the assembled state, Fig. 3 is a perspective view showing an embodiment of this invention, and Fig. 4 is an insert. FIG. 5 is a perspective view of the insert member, and FIG. 6 is a cross-sectional view showing the assembled state of the insert member. 11... Weather strip 12...
Body 14...Insert member, 15...
... Corner piece 20 ... Glass groove, 21 ...
...Window glass A...Corner part.

Claims (1)

[Scope of utility model registration request] In automobile weather strips that are fitted to the front and rear windows of the body to prevent wind and rain from entering the interior of the body, a rubber-like material that is softer than the weather strip itself is placed in the glass grooves at the corners of the weather strip. Corner of IJ knob (corner of IJ knob) Department structure.