QUICK CHANGE BRAKING SYSTEM

摘要

A braking system for a welding machine is provided. In one aspect, the braking system includes a brake surface, a spool hub shaft, a spool hub, an adjustment knob and an expandable and compressible member. The spool hub shaft is capable of engaging against the brake surface. The expandable and compressible member is provided between the spool hub and the adjustment knob to apply varying levels of force on the spool hub. The spool hub shaft has at least one tab which is capable of engaging with a recess in the adjustment knob to adjust the force applied by the member on the spool hub.

主权项

1. A welding machine comprising:
a housing; and a braking system disposed within the housing, said braking system comprising: a brake surface, a spool hub shaft mounted to said housing and capable of engaging against said brake surface, said spool hub shaft having a length and having at least one tab extending from said spool hub shaft, a spool hub coupled to the spool hub shaft and configured to rotate about said spool hub shaft, an adjustment knob having a passageway therethrough, said spool hub shaft extending through said passageway of said adjustment knob to mount said adjustment knob on said spool hub shaft, said adjustment knob having a plurality of recesses configured to selectively receive said at least one tab, and a compressible and expandable member mounted on said spool hub shaft, said member having a first end engaging with said spool hub and a second end engaging with said adjustment knob.