Reciprocating appliance drive apparatus

Abstract

A surface treatment appliance includes moveable members that are driven by a slide crank mechanism. The moveable members, which are driven in linearly reciprocating motion, are attached to guide members such that there is relative movement between the guide members and a stationary support member that is part of an appliance head.

What is claimed is: 
     
         1 . A surface treatment apparatus, comprising:
 an appliance head including a support member;   first and second moveable members that move relative to the support member;   a sliding member attached to the support member;   a guide member attached to the first moveable member, the guide member being fixed to the first moveable member and moveable relative to the sliding member; and   a drive apparatus, including a motor, that is constructed and arranged to drive the first and second moveable members in a linearly reciprocating manner.   
     
     
         2 . The surface treatment apparatus of  claim 1 , wherein the sliding member passes through a channel of the guide member. 
     
     
         3 . The surface treatment apparatus of  claim 1 , wherein the drive apparatus further comprises a crank, a connecting rod, and a slider, the slider being attached to the moveable member. 
     
     
         4 . The surface treatment apparatus of  claim 1 , wherein the drive apparatus further comprises a crank slide mechanism. 
     
     
         5 . The surface treatment apparatus of  claim 1 , further comprising a reservoir for holding liquid and a liquid applicator. 
     
     
         6 . The surface treatment apparatus of  claim 1 , further comprising a pad attached to each of the moveable members. 
     
     
         7 . The surface treatment apparatus of  claim 1 , wherein the first moveable member is configured to attach to a cleaning pad. 
     
     
         8 . The surface treatment apparatus of  claim 1 , wherein the drive apparatus drives the first and second members in opposite directions to one another. 
     
     
         9 . A method, comprising:
 linearly reciprocating first and second moveable members relative to a support member, wherein:   a sliding member is attached to the support member;   a guide member is attached to the first moveable member and moveable relative to the sliding member; and   a drive apparatus, including a motor, that is constructed and arranged to drive the first and second moveable members in a linearly reciprocating manner.   
     
     
         10 . The method of  claim 8 , wherein the drive apparatus drives the first and second members in opposite directions.