Gasket for door mirror

Abstract

A gasket for a door mirror according to the present invention is constructed so that when the gasket is interposed and pressed between a mirror base of a door mirror and a mounting seat of a car body, a tip part of a seal lip is pushed against a seating surface of the mounting seat, so as to tilt and bow toward a circumferential portion of the gasket. Then the tip part of the seal lip is resiliently urged against the seating surface of the mounting seat because of its flexibility, so as to seal a clearance between a joint surface of the gasket and the mounting seat of the car body throughout the entire circumference.

What is claimed is:  
     
         1 . A gasket for a door mirror, which is intended to be interposed between a mirror base of the door mirror to be mounted on a car body, and the car body, wherein a flexible seal lip continuously extending annularly along a circumferential portion of the gasket is formed on an opposed surface to be opposed to the car body,and a tip part of the seal lip that projects beyond the opposed surface of the gasket is inclined toward the circumferential portion of the gasket.  
     
     
         2 . A gasket for a door mirror, which is intended to be interposed between a mirror base of the door mirror to be mounted on a car body, and the car body, wherein a flexible seal lip continuously extending annularly along a circumferential portion of the gasket is formed on an opposed surface to be opposed to the car body,and a tip part of the seal lip that projects beyond the opposed surface of the gasket is inclined away from the circumferential portion of the gasket.  
     
     
         3 . The gasket according to  claim 1 , wherein a clearance groove that can accomdate the seal lip is formed on the opposed surface along an outer peripheral surface of the seal lip.  
     
     
         4 . The gasket according to  claim 3 , wherein a bottom surface of the clearance groove is continuous through a curved surface to the outer surface of a root part of the seal lip.  
     
     
         5 . The gasket according to  claim 1 , wherein a stress relief groove of a curved cross section continuous to an inner surface of the root part of the seal lip is formed on the opposed surface adjacent to the root part of the seal lip.  
     
     
         6 . The gasket according to  claim 3 , wherein a stress relief groove of a curved cross section continuous to an inner surface of the root part of the seal lip is formed on the opposed surface adjacent to the root part of the seal lip.  
     
     
         7 . The gasket according to  claim 4 , wherein a stress relief groove of a curved cross section continuous to an inner surface of the root part of the seal lip is formed on the opposed surface adjacent to the root part of the seal lip.  
     
     
         8 . The gasket according to  claim 2 , wherein a clearance groove that can accomdate the seal lip is formed on the opposed surface along an inner peripheral surface of the seal lip.  
     
     
         9 . The gasket according to  claim 8 , wherein a bottom surface of the clearance groove is continuous through a curved surface to the inner surface of a root part of the seal lip.  
     
     
         10 . The gasket according to  claim 2 , wherein a stress relief groove of a curved cross section continuous to an outer surface of the root part of the seal lip is formed on the opposed surface adjacent to the root part of the seal lip.  
     
     
         11 . The gasket according to  claim 8 , wherein a stress relief groove of a curved cross section continuous to an outer surface of the root part of the seal lip is formed on the opposed surface adjacent to the root part of the seal lip.  
     
     
         12 . The gasket according to  claim 9 , wherein a stress relief groove of a curved cross section continuous to an outer surface of the root part of the seal lip is formed on the opposed surface adjacent to the root part of the seal lip.