JPH0143952Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement of a weather strip that is attached to a panel flange of an automobile.

As shown in FIG. 1, a conventional weather strip has two legs 18,
A plurality of claws 19 are provided on the inside of the claws 18, each projecting inwardly.

When such a claw 19 is provided, when it is attached to the panel flange 13, ease of insertion, strong holding force, and sufficient followability to the flange level difference are required.

Conventionally, the only way to achieve both ease of insertion of the claw 19 and strong holding force is to reduce the mounting angle θ of the claw.
Expressed in terms of insertion force, the value is only about 2 to 3.5 at most, and it could not be expected to obtain sufficiently effective performance that the value would be 5 to 10.

Furthermore, in order to increase the sealing pressure against the panel flange 13, if the mounting angle θ of the pawl 19 is increased,
This leads to an increase in the insertion force and the seal lip 10,1
There were problems such as easy crimping failure to the panel surface 13a of 1.

This invention was made in order to improve the performance of the claws of the conventional weather strips as described above.

A first embodiment of this invention will be explained based on FIGS. 2 to 4.

Reference numeral 1 denotes a weather strip, which has a hollow seal portion 2 extruded from rubber or synthetic resin and a mounting base portion 3 having a U-shaped cross section.

A clamping lip 6 having a substantially U-shaped cross section is connected to the inner open end 5 of both legs 4 of the mounting base 3 at the proximal end 7a of the proximal flange 7 on the open side.

Reference numeral 8 denotes a claw, which protrudes from the inside of the leg portion 4 and is interposed between the proximal end flange portion 7 and the distal end flange portion 9 of the clamping lip 6. Note that 10 and 11 are seal lips, and 12 is a core metal.

Therefore, as shown in Fig. 3, the panel flange 3
To attach the weather strip 1 to the panel flange 13, the mounting base 3 is pushed in the direction of arrow A, and the clamping lip 6 is easily pushed open left and right and clamped to the panel flange 13. When the weather strip 1 tries to come out in the direction of arrow B as shown in FIG. 4 after being clamped, the left and right clamping lips 6 come into close contact with the panel flange 13, making it difficult to come out. At this time, since the claw 8 supports the clamping lip 6, the force for preventing the clamping lip 6 from coming off against the panel flange 13 is further strengthened.

FIG. 5 shows a second embodiment of this invention, in which a tip flange portion 9a of a clamping lip 6a having a substantially U-shaped cross section is shown.
A hook portion 14 is provided at the end of the claw 8a, and a hook piece 15 is provided at the tip of the claw 8a so as to engage with the hook portion 14.

FIG. 6 shows a third embodiment of this invention, in which a clamping lip 6b has a substantially E-shaped cross section, and a claw 8b is provided protruding between each flange.

FIG. 7 shows a fourth embodiment of this invention, in which the right leg 4a is provided with a hooking lip 6c and a claw 8c having a substantially U-shaped cross section, and the left leg 4a is provided with a hook 8c that faces toward the back as in the conventional case. Two protruding claws 16 are provided at an angle.

In all of the second to fourth embodiments, the function of securing the weather strip 1 to the panel flange 13 is substantially the same as in the first embodiment.

As mentioned above, in this invention, the legs 4,
Hooking lips 6, 6a, 6b, 6c having a substantially U-shaped or E-shaped cross section are connected to the inner open end 5 of the leg 4a at the base end 7a of the opening side base end flange 7, and the legs 4, Nails 8, 8a, 8b, and 8c are protruded from the inside of 4a so as to be interposed between the flanges of the clamping lip.

According to this invention, since the hooking lip with a substantially U-shaped or E-shaped cross section is provided on the inside of the leg, weather protection against the panel flange is greater than in the case of conventional hooks that are inclined toward the back. When attaching the strip, it has the advantage of increasing the holding force to the panel flange while sufficiently reducing the insertion force. It also has the advantage of eliminating poor press-fitting of the seal lip to the panel surface.

[Brief explanation of the drawing]

FIG. 1 is a vertically cut front view showing the main parts of a conventional weather strip. Figures 2 to 4 are for explaining the first embodiment of the weather strip according to this invention, and Figure 2 is a vertical cut front view of the weather strip, Figures 3 and 4 are The figure is a vertically cut front view showing the weather strip used in the same manner as above. FIGS. 5, 6, and 7 are vertical cutaway front views of essential parts of weather strips showing second, third, and fourth embodiments of this invention. 1... Weather strip, 3... Mounting base,
4, 4a... Leg portion, 5... Inner open end, 6, 6
a, 6b, 6c... clamping lip, 7... proximal flange portion, 7a... proximal end of proximal flange portion, 8, 8
a, 8b, 8c...nails.

Claims (1)

[Scope of utility model registration request] At the mounting base of the weather strip having a U-shaped cross section, a hooking lip having a substantially U-shaped or E-shaped cross section is connected to the inner open end of the leg at the base end of the opening side flange, and A weather strip characterized in that a claw is provided on the inner side of the weather strip so as to be interposed between each flange of the fastening lip.