Vibration type driving aparatus

Abstract

In a vibration type driving apparatus comprising a vibration member of which the vibration is excited, and a contacting member contacting with the vibration member, the contacting member and the vibration member being moved relative to each other by the vibration of the vibration member, a friction member is provided on the contacting portion of at least one of the vibration member and the contacting member, and the friction member is formed with a contacting surface smoothed by the pressing of a mold.

What is claimed is:  
     
         1 . A vibration type driving apparatus comprising: 
 a vibration member of which the vibration is excited; and    a contacting member contacting with said vibration member, said contacting member and said vibration member being moved relative to each other by the vibration of said vibration member;    wherein a friction member is provided on the contacting portion of at least one of said vibration member and said contacting member, and said friction member is formed with a contacting surface smoothed by the pressing of a mold.    
     
     
         2 . A vibration type driving apparatus according to    claim 1   , wherein the formation of said contacting surface by the pressing of said mold is effected with heating.  
     
     
         3 . A vibration type driving apparatus according to    claim 1   , wherein the formation of said contacting surface by the pressing of said mold is effected by a press forming method.  
     
     
         4 . A vibration type driving apparatus according to    claim 1   , wherein the formation of said contacting surface by the pressing of said mold is effected by an ultrasonic working method.  
     
     
         5 . A vibration type driving apparatus according to    claim 1   , wherein said friction member is a material including a resin material.  
     
     
         6 . A vibration type driving apparatus according to    claim 2   , wherein said friction member is a material including a resin material.  
     
     
         7 . A vibration type driving apparatus according to    claim 3   , wherein said friction member is a material including a resin material.  
     
     
         8 . A vibration type driving apparatus according to    claim 1   , wherein said friction member is set so that the ridgeline portion of the contacting portion of a partner side contacting said friction member is in non-contact with said friction member.  
     
     
         9 . A vibration type driving apparatus according to    claim 8   , wherein said friction member is formed with a depressed portion, and is in non-contact with said ridgeline portion of the contacting portion of said partner side.  
     
     
         10 . A vibration type driving apparatus according to    claim 8   , wherein said friction member is formed with a protruding portion, and is in non-contact with said ridgeline portion of the contacting portion of said partner side.  
     
     
         11 . A vibration type driving apparatus according to    claim 9   , wherein said depressed portion of said friction member is formed at the same time by the pressing of said contacting surface by said mold.  
     
     
         12 . A vibration type driving apparatus according to    claim 10   , wherein said protruding portion of said friction member is formed at the same time by the pressing of said contacting surface by said mold.  
     
     
         13 . An apparatus for driving an object to be driven by using the vibration type driving apparatus according to    claim 1    as a drive source.  
     
     
         14 . A vibration type driving apparatus comprising: 
 a vibration member of which the vibration is excited; and    a contacting member contacting with said vibration member, said contacting member and said vibration member being moved relative to each other by the vibration of said vibration member;    wherein a friction member is provided on the contacting portion of at least one of said vibration member and said contacting member, and said friction member is formed of a resin composition containing heat-resisting resin and mesophased pitch carbon fiber.    
     
     
         15 . A vibration type driving apparatus according to    claim 14   , wherein said mesophased pitch carbon fiber is carbonic.  
     
     
         16 . A vibration type driving apparatus according to    claim 14   , wherein said mesophased pitch carbon fiber comprises short fiber.  
     
     
         17 . A vibration type driving apparatus according to    claim 14   , wherein the content of said mesophased pitch carbon fiber is 10 to 30% by weight.  
     
     
         18 . A vibration type driving apparatus according to    claim 14   , wherein said heat-resisting resin includes fluororesin.  
     
     
         19 . A vibration type driving apparatus according to    claim 14   , wherein said heat-resisting resin includes polyimide resin.  
     
     
         20 . A vibration type driving apparatus according to    claim 14   , wherein said resin composition contains molybdenum disulfide.  
     
     
         21 . A vibration type driving apparatus according to    claim 14   , wherein said resin composition contains polyimide powder.  
     
     
         22 . An apparatus for driving an object to be driven by using the vibration type driving apparatus according to    claim 14    as a drive source.