Actuating shaft and method for producing an actuating shaft

Abstract

The invention relates to an actuating shaft ( 1 ), in particular of a suction tube arrangement, with an actuating element ( 8 ) provided for actuating the actuating shaft ( 1 ). It is herein provided that the actuating shaft ( 1 ) has a base body ( 2 ) made of a first material and an actuating shaft body ( 6 ) made of a second material and at least partially applied on the base body ( 2 ), and that the actuating element ( 8 ) is at least partially surrounded by the actuating shaft body. The invention also relates to a method for producing an actuating shaft ( 1 ).

1 . An actuating shaft, in particular of a suction tube arrangement, comprising:
 an actuating element for actuating the actuating shaft,   a base body made of a first material, and   an actuating shaft body made of a second material and at least partially applied on the base body, said actuating shaft body at least partially enclosing the actuating element.   
     
     
         2 . The actuating shaft of  claim 1 , wherein the actuating element comprises a recess configured to at least partially receive the base body, and wherein at least one region of the actuating element at least partially circumferentially surrounds the base body of the actuating shaft. 
     
     
         3 . The actuating shaft of  claim 2 , wherein the actuating element comprises a ball-shaped head, and wherein the recess at least partially extends through the ball-shaped head. 
     
     
         4 . The actuating shaft of  claim 1 , wherein the first material is a metal. 
     
     
         5 . The actuating shaft of  claim 4 , wherein the metal is steel. 
     
     
         6 . The actuating shaft of  claim 1 , wherein the second material is a plastic. 
     
     
         7 . The actuating shaft of  claim 6 , wherein the plastic comprises a polymer. 
     
     
         8 . The actuating shaft of  claim 2 , wherein the recess is a blind hole. 
     
     
         9 . The actuating shaft of  claim 8 , wherein a bottom of the blind hole is defined by the base body. 
     
     
         10 . The actuating shaft of  claim 1 , wherein the actuating element comprises at least one tongue-and-groove element engaging in the actuating shaft body. 
     
     
         11 . The actuating shaft of  claim 10 , wherein tongue-and-groove element is formed as a radial collar. 
     
     
         12 . The actuating shaft of  claim 1 , wherein the actuating element comprises at least one at least one sealing element. 
     
     
         13 . The actuating shaft of  claim 12 , wherein the at least one sealing element is constructed as a radial projection. 
     
     
         14 . The actuating shaft of  claim 12 , wherein the at least one sealing element is aligned with the actuating shaft body in a radial direction. 
     
     
         15 . The actuating shaft of  claim 1 , wherein the base body or the actuating shaft body form at least one cover element. 
     
     
         16 . A method for producing an actuating shaft for actuating the actuating shaft, comprising the steps of:
 providing a base body from a first material and an actuating element,   providing an actuating shaft body from a second material,   at least partially applying the actuating shaft body on the base body, and   surrounding the actuating element at least partially with the actuating shaft body.   
     
     
         17 . The method of  claim 16 , wherein the steps of at least partially applying the actuating shaft body on the base body and at least partially surrounding the actuating element are performed substantially simultaneously. 
     
     
         18 . The method of  claim 17 , wherein the steps are performed simultaneously in an injection molding process.