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Glass-run-of-vehicle-door

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Glass run of vehicle door

Details

Inventors: Takamiya, Takeomi;
Assignee: Kinugawa Rubber Ind. Co., Ltd. (Chiba, JP)
Primary Examiner: Redman; Jerry
Assistant Examiner:
Attorney, Agent or Firm: Foley & Lardner

A glass run installed to a vehicle door is comprised of a horizontal portion, a vertical portion and a corner portion integrally connecting the horizontal and vertical portions. The horizontal portion has an outer lip at which an upper end portion of a door glass is received. The corner portion has a groove which is formed along an extension line of a lower periphery of the outer lip and is defined by a thin wall. Therefore, the corner portion is deformed in the vicinity of the groove so as to absorb tensile force applied to the corner portion when the door glass pushes the lip portion.

DETAILED DESCRIPTION It is an object of the present invention to provide an improved glass run which is arranged to prevent a concentration of stress to a connecting portion between a corner portion and a vertical portion of the glass run.
A glass run according to the present invention is disposed along an inner periphery of a door frame of a vehicle door.
The glass run comprises a glass-run horizontal portion, a glass-run vertical portion and a corner portion.
The glass-run horizontal portion receives press force of a door glass when the door glass is fully raised up.
The glass-run vertical portion guides a side of the door glass.
The corner portion connects the glass-run horizontal portion and the glass-run vertical portion.
The corner portion includes a first connecting surface between the glass-run horizontal portion and the corner portion, a second connecting surface between the glass-run vertical portion and the corner portion, and a groove extending along an extension line of a lower periphery of an outer side of the glass-run horizontal portion.
A thickness of the corner portion corresponding to the groove is formed partially thinner than others of the corner portion.
The second connecting surface is located at a position that is lower than an outer lower periphery of the glass-run horizontal portion.
With this arranged glass run, even if tensile force due to the force of the door glass is applied to the corner portion, a relatively large deformation is occurred in the vicinity of the groove.
Therefore, almost all of the tensile force applied to the corner portion is received by the deformation of the groove of the corner portion, and the load applied to the second connecting surface becomes small.
This prevents the second connecting portion from generating a crack due to stress concentration.
Further, since the position of the groove is located on the extension line of a lower periphery of the outside lip of the glass-run horizontal portion, the outside view of the door glass run is more aesthetic

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