JPS6126106Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a weather strip connection structure when hollow weather strips to be attached to a window frame sash of an automobile, etc. are butt-connected.

When a hollow weather strip is used, for example, at the corner part of an automobile window frame, a hollow extruded straight part 13 and a molded curved part 14 are butted together at a connecting part 15, as shown in FIG. In some cases, the connection part 15
It is necessary to avoid creating a difference in the elastic force between the extrusion molded part and the molded part.

Therefore, conventionally, as shown in FIG.
An elongated core extraction slot 17 is provided in the mounting base 16 on the side of the curved part 14 near 5, and a core 19 having a shape substantially similar to the hollow part 18 of the straight part 13 is inserted into the core extraction slot 17. 17, the connecting portion 15 is vulcanized and welded, and the core 19 is taken out after welding.

However, when the width of the core extraction slot 17 is narrow, the core 19 forcibly expands the core extraction slot 17 during insertion and removal, which makes insertion and removal less smooth, and there are problems with strength, such as the core extraction slot 17 being torn. On the other hand, when the core extraction slot 17 is wide, when the weather strip is attached to the sash after connection processing, the attachment base 16 is easily deformed in the width direction due to the crushing of the core extraction slot 17 as shown in Fig. 5, and is easily detached from the sash 20, and further, as shown in Fig. 6, both sides of the core extraction slot 17 are shifted in the longitudinal direction as shown by arrows A and B, which causes the entire weather strip to bend.

In order to solve the above-mentioned problem of the core extraction groove in the conventional weather strip, this idea is to provide a core extraction groove in the mounting base in the shape of a single bent line along the longitudinal direction. The present invention provides a connection structure for weather strips provided on the ground.

An embodiment of this invention will be described based on FIGS. 7 to 10.

1 is a straight part of the rubber weather strip that is extruded into a substantially straight line, and a hollow seal part 2
and a plate-shaped mounting base 3 are integrally formed. Reference numeral 4 denotes a curved portion connected to the straight portion 1 at the connecting portion 5, which is molded from a sponge material, and the seal portion 6 is mostly solid.

Then, the mounting base 7 near the connecting portion 5 of the curved portion 4
Along the longitudinal direction, a core extraction slot 8 is opened in a zigzag shape, which is an example of a single bend/bending line,
Further, the seal portion 6 in the portion where the core removal slot 8 is opened forms a hollow portion 9 similarly to the seal portion 2.

Therefore, when connecting the straight part 1 and the curved part 4, first butt them together at the connecting part 5, and then hold the connecting part forming core 10 by its handle 10a in your hand and push it through the slot 8 toward the connecting part 5. insert. At this time, slot 8
Since it has a zigzag shape as shown in FIG. 7, the triangular piece 8a can be easily folded and the core 10 can be easily inserted.

Further, after the connecting portion 5 is welded by vulcanization, the core 10 is pulled out from the slot 8, but at this time also, the triangular piece 8
Since a can be easily broken off, the core 10 can be easily taken out. That is, even if the width d of the slot 8 itself is narrow, the actual width of the slot required for inserting and removing the core 10 becomes large as shown by the symbol D in FIG.

Therefore, when the weather strip is attached to the window frame sash, since the width d of the slot 8 itself is narrow, the mounting base deforms in the width direction and separates from the sash as in the conventional case shown in FIG. Moreover, unlike the conventional case shown in FIG. 6, the triangular pieces 8a of the groove holes 8 are in mesh with each other as shown in FIG. There is no possibility that the tape will curve.

As mentioned above, this invention has a hollow seal portion 2,
6, when connecting weather strips by butting them together, a groove for taking out the core provided in the mounting base 7 near the connecting part 5 of the weather strip in order to insert and remove the core 10 for forming the connecting part. 8 is formed in the shape of a single bent line along the longitudinal direction of the mounting base 7, making it easy to insert and take out the weather strip from the slot 8 of the core 10. It has the advantage that when attached to a sash, the attachment base 7 does not deform and separate or curve in the longitudinal direction, unlike in the case of conventional straight slots.

In addition, as another example of the slot for taking out the core, the first
It is also possible to provide a corrugated slot 11 as shown in the figure or a rectangular slot 12 as shown in FIG.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the connecting portion of the weather strip. Fig. 2 is a front view showing a conventional weather strip connection structure, Fig. 3 is a cross-sectional view taken along the - line in Fig. 2, Fig. 4 is a cross-sectional view taken along the - line in Fig. 3, and Fig. 5. 6 is a cross-sectional view of the weather strip attached to the sash, and FIG. 6 is an explanatory view showing the weather strip curved in the longitudinal direction. 7 to 10 explain one embodiment of the weather strip connection structure of this invention, FIG. 7 is a front view thereof, and FIG. 8 is a front view thereof.
7 is a sectional view taken from FIG. 7, FIG. 9 is a sectional view taken from FIG. FIGS. 11 and 12 are front views showing other embodiments of the weather strip connection structure. 2...Seal part, 5...Connection part, 6...Seal part, 7...Mounting base, 8...Slot hole for core removal, 1
0... Core for forming the connection part.

Claims (1)

[Scope of utility model registration request] When weatherstrips having hollow seal portions are butted and connected, a core removal groove is provided in the mounting base near the connection portion of the weatherstrip for inserting and removing the core for forming the connection portion. A weather strip connection structure characterized in that a hole is formed in the shape of a single bent line along the longitudinal direction of a mounting base.