Plastic film applicator with a braking function

Abstract

A plastic film applicator includes an applicator body including a mandrel and a grip connected to the mandrel, and a brake device including a bearing ring detachably mounted between the mandrel and grip of the applicator body for enabling the elastic braking pad to be biased toward the applicator body by an external force and an elastic braking pad having one end thereof connected to the bearing ring and elastically biasable by an external force. After the user attached a plastic film roll onto the mandrel of the applicator body, the user can press the thumb on the elastic braking pad to timely force the elastic braking pad toward the plastic film roll, forcing the abutment protrusion of the elastic braking pad into abutment against the film roll shaft, and thus, a braking effect is provided to the film roll shaft to stretch the extended plastic film for wrapping.

What is claimed is: 
     
         1 . A plastic film applicator, comprising:
 an applicator body comprising a mandrel and a grip connected to one end of said mandrel; and   a brake device comprising a bearing ring and an elastic braking pad, said bearing ring being detachably mounted between said mandrel and said grip of said applicator body for enabling said elastic braking pad to be biased toward said applicator body by an external force.   
     
     
         2 . The plastic film applicator as claimed in  claim 1 , wherein said applicator body further comprises a flange extended around the periphery of the connection area between said mandrel and said grip, said bearing ring of said brake device being abutted against said flange of said applicator body. 
     
     
         3 . The plastic film applicator as claimed in  claim 2 , wherein said flange of said applicator body comprises a positioning recess; said bearing ring of said brake device comprises a positioning protruding portion engaged into said positioning recess of said flange of said applicator body. 
     
     
         4 . The plastic film applicator as claimed in  claim 2 , wherein said mandrel of said applicator body comprises a stopping protrusion protruded from the periphery thereof adjacent to said flange; said bearing ring of said brake device comprises a recessed portion engaged with said stopping protrusion of said mandrel of said applicator body. 
     
     
         5 . The plastic film applicator as claimed in  claim 1 , wherein said elastic braking pad of said brake device comprises an abutment protrusion located on one side thereof facing toward said bearing ring. 
     
     
         6 . The plastic film applicator as claimed in  claim 1 , wherein said elastic braking pad of said brake device comprises an anti-slip grain pattern located on one side thereof opposite to said bearing ring. 
     
     
         7 . The plastic film applicator as claimed in  claim 1 , wherein said grip of said applicator body comprises a hanging hole disposed near a distal end thereof remote from said mandrel. 
     
     
         8 . The plastic film applicator as claimed in  claim 1 , wherein said applicator body further comprises an anti-escape end-piece located on an opposite end of said mandrel remote from said grip.