JPH0315401Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> This invention relates to a weather strip (hereinafter referred to as "W/S") used primarily for the purpose of sealing the opening and closing parts of automobiles.

<Prior Art> The applicant of the present application has proposed a door glass run W/S1 having a configuration as shown in FIGS. 5 and 6.

It consists of a mounting base 2 and a sealing part 4, which are integrally molded from non-foamed rubber or thermoplastic elastomer. The mounting base 2 connects the first engaging portion 5, the second engaging portion 6, and both engaging portions, so that the engaging portions 5 and 6 are brought closer to each other, that is, so as to protrude in a direction opposite to the insertion direction. and a bridge portion 7 that bends against the spring force. The first engaging part 5 has an engaging shoulder part 5a and a lip part 5b which can be bent at the tip side, and the second engaging part 6 has an engaging claw part 6a. Also,
The seal portion 4 includes a glass locking wall 8 and a glass pressing lip portion 9. Note that an insert 10 is embedded on the first engaging portion 5 side in order to increase the engagement holding force. In the illustrated example, G is glass.

<Problems to be Solved by the Invention> The assembly of this W/S 1 to the assembly rail 11 formed on the door sash 12 is as follows.

As shown in FIG. 6, the engaging claw portion 6 of the second engaging portion
a to the second retaining step 11a of the assembly rail, and then, while bending the bridge portion 7 against the spring force, the first engaging portion 5 is engaged with the first retaining step 11a of the assembly rail. 11b to insert and fit the mounting base 2 into the assembly rail 11.

After assembly, when a pull-out load in the direction of the white arrow is applied, the bridge portion 7 is easily bent in the direction of the white arrow, so the pull-out load is not so high.

<Means for solving the problem> The W/S of this invention has a mounting base that is inserted and fitted into a cross-sectional assembly rail that is disposed on the door sash and has a stopper step on both sides, and a mounting base that is press-fitted to the glass. The mounting base includes a first engaging part, a second engaging part, and a bridge part that connects both engaging parts and is bendable against spring force. In the strip, the bridge portion of the mounting base has a bending point that can be elastically bent, and has a substantially V-shape that protrudes from the root portions of the first engaging portion and the second engaging portion in the insertion direction during assembly. This configuration solves the above problems.

<Operation> The operation of this device is explained in the first embodiment (Figs. 1 and 2).
The explanation will be based on.

The manner in which the W/S1A is assembled to the door sash 12 is as follows.

After inserting the first engaging portion 5 so that its engaging shoulder portion 5a engages with the first retaining step portion 11b of the assembly rail, the second engaging portion 6A is inserted into the second retaining step 11b of the assembly rail. Push it in so that it engages with the stepped portion 11b.
When the assembly rail 11 of the second engagement portion 6A is pushed in, the V-shape of the bridge portion 7A of the attachment base 2 receives a force in the closing direction and can be easily inserted. On the other hand, if a pullout load is applied in the direction of the white arrow after assembly, a force will act in the direction to open the V-shape of the bridge section 7A, and if the V-shape is not reversed, the mounting base 2 will be removed from the mounting rail 11. There will be no departure.

<Effects of the invention> Since the W/S of this invention has the above-mentioned configuration and operation, the load of the mounting base coming off from the mounting rail increases significantly after assembly.

<Examples> Each example of this invention will be described. The W/S in each embodiment is manufactured by extrusion molding or the like using a foamed or non-foamed elastomer material, but only the mounting base may be made of a non-foamed material with high modulus and the sealing portion may be made of a foamed material. The same parts as those in the conventional example are given the same reference numerals and the explanation is omitted. (1) First embodiment (Figs. 1 and 2) In the conventional example shown in Figs. 5 and 6, the bridge of the mounting base 2A The portion 7 has a bending point that can be elastically bent, and approximately protrudes from the root portions of the first engaging portion 5 and the second engaging portion 6A in the direction of insertion into the assembly rail 11 formed on the door sash 12. It is said to be V-shaped. Here, the second engaging portion 6A is a V-shaped bridge portion 7.
It has a lip shape that protrudes laterally from the bottom of A. The effects of this embodiment are as described above.

(2) Second Embodiment (Figures 3 and 4) This invention is applied to a weather strip 13 for a door without a door. It consists of a mounting base 18 having rib-shaped first and second engaging parts 15 and 16 on both sides, and a sealing part 19 having a substantially M-shaped cross section and integrally formed continuously with the mounting base 18. Here, both engaging parts 15, 1 of the mounting base 18
6 is provided with a bending point that can be elastically bent, and is located on the insertion direction side from the root portions of the first engaging portion 15 and the second engaging portion 16 to the assembly rail 21 formed on the door sash 22. The insert 20 is formed into a substantially V-shape that protrudes toward the bottom, and a V-shaped insert 20 made of a leaf spring is embedded corresponding to the V-shape.

The effects of this embodiment are substantially the same as those of the first embodiment, but since the insert 20 made of a leaf spring applies spring force, the engagement becomes more reliable.

[Brief explanation of the drawing]

Figures 1 to 4 show the W/S of this invention, Figure 1 is a sectional view of the assembly state of the first embodiment, and Figure 2 is the
3 is a sectional view of the W/S in the figure just before the assembly is completed, FIG. 3 is a sectional view of the assembly mode of the second embodiment, FIG. 4 is a sectional view of the W/S in FIG. Figure 5 is a sectional view of the conventional W/S assembly mode, and Figure 6 is a sectional view of the W/S of the conventional example.
FIG. 3 is a cross-sectional view of the W/S shown in the figure immediately before assembly is completed. 1,1A...Door glass run W/S, 2,2
A, 18... Mounting base, 4, 19... Seal part, 5, 15... First engaging part, 6, 6A, 16...
...Second engagement part, 7, 7A, 17...Bridge part, 11,
21... Assembly rail, 12, 22... Door sash, 13... W/S.

Claims (1)

[Scope of Claim for Utility Model Registration] A mounting base that is inserted and fitted into a cross-sectional assembly rail that is disposed on a door sash and has a stopper step on both sides, and a seal that presses against the glass to perform a sealing action. In the weather strip, the mounting base includes a first engaging portion, a second engaging portion, and a bridge portion that connects both engaging portions and is bendable against a spring force; 1. A weather strip characterized by having a bending point that can be elastically bent, and having a substantially V-shape that projects from the root portions of the first engaging portion and the second engaging portion in the direction of insertion during assembly.