JPS5917712Y2 - weather strip - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a weather strip that is attached to the edge of an opening in a vehicle body to which a rear side window glass is attached, and seals between the vehicle body and the rear side window glass.

The structure of a conventional weather strip is shown in FIG.
To explain this with reference to FIG. 2, which is shown as a -II cross-section, 1 is a welt part attached to a flange 13 of a vehicle body opening 12 to which a rear side window glass 11 is attached, and the welt part 1 is made of solid rubber and has a U-shaped cross section. It is formed into a shape, and integrally has flange holding lips 2 and 3 that sandwich the flange 13 on opposing surfaces of the inner substantially central portion.

Further, a core metal 4 is embedded within this welt portion 1 for both reinforcement and shape preservation.

Reference numeral 5 denotes a body seal lip made of sponge rubber that protrudes from the outer surface of the upper end of the side wall 6 on the outside of the vehicle of the welt portion 1, and the body seal lip 5 comes into contact with the vehicle body panel 14 at the base of the flange 13, It is a seal.

Reference numeral 8 denotes a glass seal lip protruding from the outer surface of the lower side of the side wall 6 on the outside of the vehicle in a substantially dogleg shape.
It seals the outside.

By the way, in such a conventional weather strip, the vehicle outer side wall 6 and the vehicle inner side wall 7 of the welt portion 1 are formed to have the same length to match the vehicle inner side wall 7. Due to the structure of the vehicle body, the outer panel 14 is not flush with the sight rail inner panel 15, and therefore,
The end of the outer side wall of the vehicle is separated greatly from the vehicle body panel 14,
As a result, a sufficient reaction force of the body seal lip 5 cannot be obtained, resulting in insufficient sealing of this portion.

In addition, the glass seal lip 8 has a dogleg-shaped bending point 9.
A sealing reaction force is generated at two points on the protruding base 10 and the bending point 9 is located below the bottom surface of the welt part 1, and the protruding base 10 is located below the flange retaining lip 2. , 3, so when the rear side window glass 11 comes into contact with the seal lip 8 and an external force is applied, the point of application of the reaction force is generated below the welt part 1 as described above, so that the weather The entire strip tends to rotate toward the passenger compartment R side as shown by the arrow with the flange retaining lips 2 and 3 as fulcrums, and as a result, the sealing effect of the body seal lip 5 portion is further reduced and water leaks into the passenger compartment. Occasionally I would break in.

Further, as described above, since the bending point 9 of the glass seal lip 8 is located below the bottom surface of the welt portion 1, the bending point 9 is exposed from the inside of the vehicle interior, resulting in an unsightly appearance.

In view of the conventional situation, the present invention increases the sealing reaction force of the body seal lip by extending the outer side wall of the welt portion so as to be close to the vehicle body panel surface.
In addition, the dogleg-shaped bending point of the glass seal lip is set above the bottom surface of the welt part, so that the point of action of the reaction force is set upward, and the bending point of the dogleg shape is set above the bottom surface of the welt part. By additionally molding the support protrusion that abuts the flange, when an external force is applied to the glass seal lip through the rear side window glass, the support protrusion at the forming base of the glass seal lip resists the external force and prevents the weather strip from moving. This prevents the glass seal lip from rotating toward the interior of the vehicle, and also prevents the bending point of the glass seal lip from being exposed from the interior of the vehicle.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings, in which the same parts as those of the conventional structure are denoted by the same reference numerals.

That is, in the present invention, as illustrated in FIGS. 3 and 4,
The side wall 6 on the outside of the vehicle of the welt portion 1 is extended 6 so that its upper end is close to the surface of the vehicle body panel 14, and the body seal lip 5 formed at the end of this extension 6' is sufficiently brought into contact with the vehicle body panel 14. This is to increase the seal reaction force.

In addition, the glass seal lip 8' protruding in a dogleg shape has a bending point 9' that generates a reaction force at the tip of the welt part 1.
The bending point 9'
In addition, the point of action of the reaction force of the entire lip protrusion base 10' is set upward, and a support protrusion 16 that abuts the flange 13 is formed on the inner surface of the welt part side wall 6, which approximately corresponds to the lip protrusion base 10'. When the glass seal lip 8' receives an external force due to contact with the rear side window glass 11, this support protrusion 16 suppresses the entire weather strip from rotating toward the passenger compartment R side against the external force. That's how it is.

Furthermore, in this embodiment, a flange seal lip 17 is provided on the inner surface of the upper end of the side wall 6 on the outside of the vehicle interior, and the flange seal lip 17 abuts against the flange 13, and the weather strip mounting portion is double-sealed with the body seal lip 5. That's what I do.

Further, one side 2' of the flange retaining lip is integrally molded with this flange seal lip 17.

According to the present invention having such a configuration, the welt portion side wall 6 of the protruding base of the body seal lip 5 is connected to the vehicle body panel 1.
Since the extension 6' is extended close to the 4th surface, the seal reaction force increases significantly, and the body seal lip 5 and flange seal lip 17 ensure a reliable seal at the weatherstrip attachment part. In addition, the point of application of the reaction force of the glass seal lip 8' is above the side wall 6 of the welt section, and the support projection 1 that abuts the flange 13 is provided inside the side wall 6 of the welt section so as to face this point of application of the reaction force.
6, even if an external force is applied from the rear side window glass 11 to the glass seal lip 8', this support protrusion 16 resists this external force and suppresses the rotation of the weather strip toward the passenger compartment R side. As a result, it is possible to prevent the body seal lip 5 from floating up from the surface of the vehicle body panel 14, thereby avoiding loss of the sealing effect.

Also, the dogleg-shaped bending point 9' of the glass seal lip 8'
As described above, since the bending point is located above the bottom surface of the welt portion 1, it is possible to prevent the bending point from being exposed from inside the passenger compartment and spoiling the appearance, which has a number of practical effects.

[Brief explanation of drawings]

Figure 1 is an external view of the car, Figure 2 is a conventional weather system)
FIG. 1 is an explanatory cross-sectional view taken along line II-■■ showing the IJ knob, FIG. 3 is a view similar to FIG. 2 showing the weather strip of the present invention, and FIG. 4 is a perspective view of the same weather strip. .

Claims (1)

[Scope of utility model registration request] a welt portion having a U-shaped cross section and having a core bar inside and a flange retaining lip on the inner facing surfaces of each of the outer and inner side walls of the vehicle, which is attached to the flange of the vehicle body opening to which the rear side window glass is attached; The welt portion has a body seal lip that protrudes from the outer surface of the upper end of the side wall on the outside of the vehicle and comes into contact with the surface of the vehicle body panel, and a body seal lip that protrudes in a dogleg shape on the outer surface of the lower side of the side wall on the outside of the vehicle and that is provided on the rear side. In a weather strip consisting of a windshield and a glass seal lip that comes into contact with the windshield, the side wall of the welt portion on the outside of the vehicle is extended such that its upper end is close to the vehicle body panel surface;
The dogleg-shaped bending point of the glass seal lip is set above the bottom surface of the welt part, and the inner surface of the side wall on the vehicle exterior side of the welt part, which substantially corresponds to the protruding part of the glass seal lip, is set to contact the flange. A weather strip characterized by forming contacting support protrusions.