Stretch film dispenser

Abstract

A stretch film dispenser includes a core member having a handle and a threaded section. A roller is provided on the core member for rotation. A brake device is provided on the core member to press the roller. An adjusting device has a threaded hole to be screwed onto the core member, and an elastic member between the brake device and the adjusting device having ends urging on the brake device and the adjusting device respectively. The adjusting device is rotated to move toward or away from the brake device to compress the elastic member with various degrees, and the elastic member may urges the brake device to press the roller for providing various frictions to the roller.

1 . A stretch film dispenser, comprising: 
 a core member having a handle;    a roller provided on the core member for rotation;    a brake device provided on the core member to press the roller;    an adjusting device provided on the core member; and    an elastic member between the brake device and the adjusting device having ends rested on the brake device and the adjusting device respectively;    wherein the adjusting device is moved proximal to or distal to the brake device to compress the elastic member, and the elastic member urges the brake device to press the roller for providing a friction to the roller.    
   
   
       2 . The stretch film dispenser as defined in  claim 1 , wherein the core member has a threaded section, and the adjusting device has a hole with a threaded section on a sidewall thereof to be fitted to the core member and mesh the threaded section of the adjusting device with the threaded section of the core member.  
   
   
       3 . The stretch film dispenser as defined in  claim 1 , wherein the roller has an inner cone surface, and the brake device has an outer cone surface to be rested on the inner cone surface of the roller.  
   
   
       4 . The stretch film dispenser as defined in  claim 1 , wherein the brake device has a base member and a friction member, which is made of a material with high friction coefficient, and the base member is urged by the elastic member and the friction member presses the roller.  
   
   
       5 . The stretch film dispenser as defined in  claim 4 , wherein the base member has an outer cone surface, and the friction member has an inner cone surface attached on the outer cone surface of the base member.  
   
   
       6 . The stretch film dispenser as defined in  claim 5 , wherein the roller has an inner cone surface, and the friction member further has an outer cone surface to be rested on the inner cone surface of the roller.  
   
   
       7 . The stretch film dispenser as defined in  claim 1 , further comprising a stop member connected to the core member, which has a block against the roller to prevent the roller from escaping from the core member.