JP4132336B2 - Weather strip for double doors - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a weather strip for a double door such as a back door of an automobile.
[0002]
[Prior art]
As shown in FIG. 2, the sealing structure of the opposite edges L1, R1 of the left and right doors L, R in the double door opening of the back door of the automobile has a top closed left door L as shown in FIGS. The main seal 5 provided with a hollow seal portion 5a that contacts the body B is assembled to the flange F. On the other hand, the rear closed right door R is used to prevent water and dust from entering due to the lock K provided at substantially the center of the edge shown in FIG. 2 and to reduce the door closing resistance to improve the feeling of closing. A sub seal 6 having a seal lip 6a is attached.
[0003]
[Problems to be solved by the invention]
However, as shown in FIG. 5, the double doors have a built-in variation so that the amount of displacement increases as indicated by the arrow at the upper end of the door, and the upper end of the sub seal 6 is molded to prevent water and dust from entering. However, since the shape of the seal portion is a lip shape, there is a disadvantage that the seal width is insufficient, the seal is cut, and water or the like enters. As a countermeasure, even if the size S of the seal portion is increased to prevent the seal from being cut as shown in FIG. 4, there is a problem that the window frame width is increased and the rear view is blocked.
Accordingly, in view of the conventional problems, the present invention has an object to provide a weather strip for a double door that can prevent occurrence of seal breakage by forming a hollow seal portion at an upper end portion of a sub seal attached to a rear closed right door. And
[0004]
[Means for Solving the Problems]
In order to achieve such an object, as shown in FIG. 1, the configuration of the present invention comprises weather strips respectively attached to opposite vertical edges L1 and R1 of left and right doors L and R in a double door of a car. The sub-seal 1 attached to the rear closed right door R has a lip part 2 which is formed by extrusion and provided with a lip-like seal 2a as a main part, and is molded and formed into a hollow seal 3a on at least the upper end side of the upper and lower ends. A hollow portion 3 is formed, and a gradually changing portion 4 whose shape gradually changes from a hollow shape to a lip shape is formed on the side of the hollow portion 3 connected to the lip portion 2. It is a weather strip for double doors, and in addition, the gradually changing portion 4 of the hollow portion 3 in the sub-seal 1 is characterized by having a substantially spiral shape in the end edge shape 4a in the longitudinal direction.
[0005]
【Example】
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. As shown in FIG. 2, in the left and right doors L, R of the double doors of the automobile, the edge R1 of the rear closed right door R among the weather strips respectively attached to the opposing vertical edges L1, R1. 1 is attached with a sub seal 1 shown in FIG. The sub-seal 1 has a lip portion 2 provided with a lip-shaped seal 2a which is extruded and has a low surface pressure when the door is closed as a main portion, and is provided with a hollow seal 3a which is molded on the upper end side and has a large seal width. A hollow portion 3 is formed.
[0006]
Further, the hollow portion 3 is formed with a gradually changing portion 4 whose shape gradually changes from a hollow shape to a lip shape and a lip-shaped molded portion 4b on the connection side with the lip portion 2. And the edge shape 4a of the longitudinal direction of the gradual change part 4 has comprised substantially spiral shape, and this is considered to be a substantially ideal shape in order to prevent the sudden change of the surface pressure at the time of the door closing mentioned later.
Therefore, when the door is closed, the upper end portion of the door with a large built-in variation is securely sealed without absorbing the variation by the hollow portion 3 having a large seal width, and the closing load increases and the closing feeling is increased. The length D of the hollow portion 3 is shortened so that the surface pressure does not deteriorate, and the gradual change portion 4 prevents a sudden change in the surface pressure between the hollow portion 3 and the lip portion 2.
[0007]
【The invention's effect】
As described above, the weatherstrip for double doors of the present invention is built by forming a hollow portion having a large seal width at least on the upper end side of the lip portion constituting the main portion of the sub seal attached to the right door that is closed thereafter. Even at the upper end of a door with large variations, there is a feature that it is possible to prevent the conventional seal from being cut when the door is closed, and the feeling of closing is not deteriorated.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a main part of a weather strip for a double door according to the present invention.
FIG. 2 is a perspective view showing a back door of an automobile.
FIG. 3 is a perspective view showing a part of a conventional weatherstrip for double doors.
4 is a cross-sectional view taken along line AA in FIG.
FIG. 5 is a perspective view showing a built-in variation when a double door is closed.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Sub seal 2 Lip part 2a Lip-like seal 3 Hollow part 3a Hollow seal 4 Gradual change part 4a Edge shape L Left door L1 Edge R Right door R1 Edge

Claims (1)

Of the weather strips attached to the opposite vertical edges of the left and right doors of the double doors of a car, the sub-seal attached to the rear closed right door is mainly formed of an extruded lip portion having a lip-shaped seal. A hollow portion formed with a hollow seal is formed on at least the upper and lower ends of the upper and lower ends, and the shape of the hollow portion is gradually reduced from a hollow shape to a lip shape on the connection side with the lip portion. Ri formed by forming a gradually changing portion for varying, gradually changing portion of the hollow portion in the sub seal, weatherstrip for double doors doors, characterized in that a substantially helical in the longitudinal direction of the edge shape.

Images