JPH079629U - Weather strip - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a weather strip that does not stick to each other when it is passed through a bender roll and the inner surfaces of the hollow seal portions are overlapped and pressed against each other. [Structure] A weather strip 10 comprising a combination of sponge rubber, solid rubber, and a core metal, in which a hollow seal portion 12 is integrally connected to a side surface of a U-shaped trim 11 in which a core metal 20 is embedded. A solid rubber layer R is formed on the inner surface of the hollow seal portion 12 made of the layer S, and a plurality of solid rubber protrusions 15 are provided on the inner surface of the hollow seal portion 12 that faces the back surface of the seal surface 13. .

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a weather strip that is a combination of sponge rubber, solid rubber, and a core metal.

[0002]

[Prior art]

 Conventionally, as a weather strip 10 which is a combination of sponge rubber, solid rubber, and a core metal, as shown in FIGS. 1 to 3, a sponge rubber layer is formed on the side surface of a solid rubber U-shaped trim 11 in which a core metal 20 is embedded. A hollow seal portion 12 made of S is integrally used. Further, in order to improve the shape-retaining property during vulcanization, in examining FIG. 2 in which the solid rubber layer R is formed on the inner surface of the hollow seal portion 12, the structure shown in FIG. 2 is vulcanized and molded. Then, it is extruded into a predetermined shape, vulcanized, and then subjected to bender processing. At the time of this bender processing, as shown in FIG. There is a problem that they stick together and remain stuck even after processing the bender.

[0003]

[Problems to be solved by the device]

 The problem to be solved is that, when the conventional weather strip 10 is passed through the bender rolls 30, 30, the opposing surfaces in the hollow seal portion 12 may overlap and stick to each other.

[0004]

[Means for Solving the Problems]

 Description will be made with reference to FIGS. 1 and 4. The present invention is a weather strip 10 in which a hollow seal portion 12 is integrally connected to a side surface of a U-shaped trim 11 in which a cored bar 20 is embedded and which is a combination of sponge rubber, solid rubber, and a cored bar. A solid rubber layer R is formed on the inner surface of the hollow seal portion 12 made of a sponge rubber layer S, and a plurality of solid rubber projections 15 are formed on the inner surface of the hollow seal portion 12 facing the back surface of the seal surface 13. It is provided.

[0005]

【Example】

 Explaining an embodiment, the weather strip 10 which is a combination of sponge rubber, solid rubber, and a core metal according to the present invention is constructed as follows. Reference numeral 11 is a U-shaped trim made of solid rubber, 12 is a hollow seal portion integrally connected to the side surface of the U-shaped trim 11, and S and R are sponge rubber layers constituting the hollow seal portion 12 and the inner surface thereof. A thin solid rubber layer 15 formed on the inner surface of the hollow seal portion 12, and a plurality of solid rubber protrusions 20 provided on the inner surface of the hollow seal portion 12 opposite to the rear surface of the seal surface 13; It is a cored bar.

When providing the solid rubber layer R on the inner surface of the hollow seal portion, a sponge rubber layer may be partially omitted as shown in FIG.

The operation will be described. When the inner surfaces of the hollow seal portion 12 are passed through the bender rolls 30 and 30 and overlapped with each other and pressed against each other, a gap is created in the overlapped portions, so that they do not stick to each other.

[0008]

[Effect of device]

 Since the present invention is constructed as described above, when the inner surfaces of the hollow seal portion 12 are passed through the bender rolls 30 and 30 and pressed against each other, they do not stick to each other.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a conventional example.

FIG. 2 is a cross-sectional view showing another conventional example.

FIG. 3 is a perspective view showing a state in which a conventional example is passed through a bender roll and the inner surfaces of hollow seal portions are overlapped and pressed against each other.

FIG. 4 is a sectional view showing an embodiment of the present invention.

FIG. 5 is a perspective view showing a state in which an embodiment of the present invention is passed through a bender roll and the inner surfaces of the hollow seal portions are overlapped and pressed against each other.

FIG. 6 is a sectional view showing another embodiment of the present invention.

[Explanation of symbols]

 10 Weather Strip 11 U-shaped Trim 12 Hollow Seal Part 13 Sealing Surface 15 Solid Rubber Protrusion 20 Core Bar 30,30 Bender Roll S Sponge Rubber Layer R Solid Rubber Layer

Claims (1)

[Scope of utility model registration request] 1. A weather combining a sponge rubber, a solid rubber, and a core metal in which a hollow seal portion (12) is integrally connected to a side surface of a U-shaped trim (11) in which a core metal (20) is embedded. In the strip (10), the solid rubber layer (R) is formed on the inner surface of the hollow seal portion (12) made of the sponge rubber layer (S), and the hollow seal portion (1) is formed.
2) A weather strip provided with a plurality of solid rubber projections (15) on the inner surface facing the back surface of the sealing surface (13).