JPH0737941Y2 - Automotive door weather strip - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a door weather strip that is mounted along the outer periphery of a door frame of an automobile door and seals between the door frame and the vehicle body door opening. is there.

[Prior Art] As shown in FIG. 10, a weather strip 4 of this type includes a mounting base portion 41 and a hollow seal portion 42, and as shown in FIG. 11, along the outer periphery of the door frame 1. The retainer 3 has a channel shape. In this case, if the width of the mounting base 41 is set to be the same as the width of the retainer 3, it is difficult to fit the retainer 3 into the retainer 3. Therefore, the width of the mounting base 41 is made slightly smaller than the width of the retainer 3.

By the way, when the door is closed and the hinge strip at the front edge is rotated to press the weather strip against the door opening, a force acts on the upper horizontal portion of the weather strip in the direction of sliding the weather strip rearward. . For this reason, when the door is repeatedly opened and closed, the weather strip tends to gradually shift rearward.

Then, this invention aims at providing the door weather strip which does not produce this gap.

[Means for Solving the Problems] As shown in FIGS. 2 and 3, the present invention is a corner portion 4C of a door weather strip fitted into a channel-shaped retainer 3 provided in a door frame 2. A protrusion 43 is formed on the inner surface of the side surface of the retainer 3 in pressure contact with a portion attached to the portion C in FIG. 1), especially on the horizontal side surface thereof.

Further, as shown in FIG. 7 to FIG. 9, the trim member 5 for wrapping the door frame 2 from the indoor side is used, and the projection 43 formed on the side surface of the corner portion 4C of the door weather strip is provided on the trim member 5. You may make it press-contact with an edge.

[Operation and Effect] The locking force of the projection 43 with respect to the retainer 3 or the trim member 5 can prevent the weather strip 4 from being displaced rearward.

Since the corner portion 4C of the weather strip is formed by connecting the weather strips 4A and 4B of extrusion molding by molding, the protrusion 43 can be easily formed at the corner portion molding.

[Example] The door weather strip 4 mounted around the door frame 2 of the door 1 shown in FIG. 1 is made of rubber and is provided with a mounting base 41 and a hollow seal portion 42 as shown in FIG. It can be obtained by connecting the ends of the extruded horizontal side and vertical side weather strips 4A and 4B by molding to form a corner portion 4C. The molding corner 4C has a mounting base 41 at the end connected to the horizontal weather strip 4A.
The projection 43 protruding from the side end of the is integrally formed.

As shown in FIG. 3, the weather strip 4 is attached by being fitted into a channel-shaped retainer 3 provided on the outer periphery of the door frame 2. The width of the attachment base portion 41 of the weather strip 4 is smaller than the width of the retainer 3 in the general portion, and slightly larger than the width of the retainer 3 in the protrusion forming portion. Therefore, in the mounted state, there is a gap between the retainer 3 and the general portion of the mount base 41, but in the protrusion forming portion, the protrusion 43 is press-fitted to the inner surface of the side face portion of the retainer 3 which faces the retainer 3.

Since the protrusion forming portion is a part of the portion fitted to the retainer 3, it does not hinder the fitting work to the retainer 3.

Then, when the door is closed, the horizontal weather strip 4A is pressed backward from the door opening edge, that is, in the direction of the corner portion 4C, but the projection 43 engages with the retainer 3 to be held and displaced. Does not occur. When the door is opened, the rearward pressing force acting on the horizontal weather strip 4A is immediately released. Therefore, no deviation occurs even if the door is repeatedly opened and closed.

FIG. 4 shows another embodiment, in which the projection 43 of the die molding corner portion 4C is attached to the mounting base portion 41 of the weather strip 4A formed by extrusion.
It has been extended to cover it. By thus forming the extension portion 431 on the protrusion 43, the area of engagement with the retainer 3 can be changed and the locking force can be adjusted.

In order to adjust the locking force, the protrusion 43 is extended to the weather strip 4A side of the extrusion molding, as shown in FIG. 7, when the weather strip holding portion of the retainer 3 does not exist in the central portion of the corner. Because there are many.

Further, as shown in FIG. 5, the mounting base portion in the entire corner portion may be projected. By doing so, the shape of the molding surface of the corner part molding die becomes simple. In this case, the locking force acts only on the portion of the projection 43 that is in pressure contact with the retainer 3 on the front end side. Even if the protrusion 43 continues to the central portion of the corner, since the holding portion of the retainer 3 does not exist in the central portion of the corner as described above, the workability of attaching the weather strip is not hindered.

FIG. 6 shows still another embodiment, in which the projection 43 is formed not on the end of the mounting base 41 but on the side surface of the neck between the base 41 and the seal 42. With this, the same operational effect as that of the above-described embodiment can be obtained.

7 to 9 show still another embodiment. As shown in FIG. 7, the weather strip holding portion of the retainer 3 does not exist in the central portion of the corner. The interior sides of the door frame 2 and the retainer 3 are wrapped with a trim member 5 attached along the door frame 2.
As shown in FIG. 8, a projection 43 is formed at the center of the corner of the door weather strip 4 on the inside of the neck. A bent end 51 that bends at a substantially right angle is formed on the edge of the trim member 5 on the indoor side.
As shown in FIG. 9, the bent end 51 sandwiches the protrusion 43 from above on the mounting base 41. Even when the projection 43 is pressed against the edge of the trim member 5 in this manner, the same effect as that of the above-described embodiment can be obtained.

[Brief description of drawings]

FIG. 1 is a front view of an automobile door to which the door weather strip of the present invention is applied, and FIGS. 2 and 3 are the first view of the present invention.
FIG. 2 is a perspective view of a main part of a door weather strip, FIG. 3 is a sectional view of a door weather strip attached at a position along the line III-III in FIG. 2, and FIG. FIG. 5 is a perspective view of a main part of a door weather strip according to the second embodiment, and FIG.
FIG. 6 is a perspective view of a main part of a door weather strip of a third embodiment, FIG. 6 is a sectional view of a door weather strip of a fourth embodiment in a mounted state, and FIGS. 7 to 9 are a fifth embodiment. Fig. 7 shows an example, and Fig. 7 is a perspective view of a corner portion of a door frame.
FIG. 8 is a perspective view of a main part of the door weather strip, FIG. 9 is a sectional view of the door weather strip in a mounted state at a position along the line IX-IX in FIG. 8, and FIG. 10 is a conventional door weather. FIG. 11 is a perspective view of a main part of the strip, and FIG. 11 is a sectional view of the weather strip in a mounted state at a position along the line XI-XI in FIG. 2 …… Door frame 3 …… Retainer 4 …… Door weather strip 4C …… Corner part 41 …… Mounting base 42 …… Seal part 43 …… Projection 5 …… Trim member

Claims (2)

[Scope of utility model registration request] 1. A door weather strip in which a mounting base is fitted to a channel-shaped retainer provided along the outer periphery of a door frame of an automobile door to seal the periphery of the door frame, the side surface of the corner portion being a side surface of the retainer. An automobile door weather strip characterized in that a protrusion is formed on the inner surface of the portion for pressure contact. 2. A door weather strip in which a mounting base is fitted to a channel-shaped retainer provided along the outer periphery of a door frame of an automobile door to seal the periphery of the door frame, on the side surface on the indoor side of the corner. A door weather strip for an automobile, characterized in that a protrusion for press-contacting an inner surface of an edge of a trim member provided along the door frame so as to wrap the door frame from the interior side is formed.