Air pump

Abstract

The invention relates to an improved arrangement of an air pump which can be inserted into the seat pillar ( 50 ) of a bicycle and which comprises a cylinder ( 2 ), a piston with a piston rod ( 3 ), a handle ( 4 ) and an air outlet valve ( 5 ) which is displaceably connected to the cylinder ( 2 ). According to the invention, a deformable element ( 6 ) is provided between the cylinder ( 2 ) and the air outlet valve ( 5 ), the diameter (d) thereof being able to be increased by flipping over the air outlet valve ( 5 ) such that the longitudinal axis (A) of the cylinder ( 2 ) and the longitudinal axis (a) of the air outlet valve extend in an at least substantially parallel manner. The air pump ( 1 ) can be blocked in the seat pillar ( 50 ).

1 . An air pump, which is insertable into a saddle post ( 50 ) of a bicycle, having a cylinder ( 2 ), a piston having a piston rod ( 3 ), a handle ( 4 ), and an air outlet valve ( 5 ) movably connected to the cylinder ( 2 ), characterized in that a deformable element ( 6 ) is provided between cylinder ( 2 ) and air outlet valve ( 5 ), whose diameter (d) may be enlarged by folding over the air outlet valve ( 5 ), so that the longitudinal axis (A) of the cylinder ( 2 ) and the longitudinal axis (a) of the air outlet valve ( 5 ) at least largely run parallel, the air pump ( 1 ) being lockable in the saddle post ( 50 ).  
   
   
       2 . The air pump according to  claim 1 , 
 characterized in that the handle ( 4 ) is implemented as at least one tool ( 30 ,  31 ).    
   
   
       3 . The air pump according to  claim 1  or  2 , 
 characterized in that the tool ( 30 ,  31 ) is removably connected to the air pump ( 1 ), particularly to the piston rod ( 3 ) and/or the cylinder ( 2 ).    
   
   
       4 . The air pump according to one of the preceding claims, 
 characterized in that a cylindrical container ( 20 ), whose diameter is smaller than the diameter of the frame tube ( 60 ), is removably connected to the air outlet valve ( 5 ).    
   
   
       5 . The air pump according to  claim 4 , 
 characterized in that the cylindrical container ( 20 ) may be filled with repair kits, tools, replacement parts, or similar objects.    
   
   
       6 . The air pump according to one of the preceding claims, 
 characterized in that the deformable element ( 6 ) is a rubber seal.    
   
   
       7 . The air pump according to one of  claims 3  to  6 , 
 characterized in that a screw and/or plug-in connection ( 14 ,  25 ) is provided as the removable connection of the tool ( 30 ,  31 ) and/or the container ( 20 ).