Wall scraper

Abstract

A scraper, such as a wall scraper using a standard replaceable blade, is provided with an adjustable scraper head for changing the attack angle of the blade to suit the user and/or the job. Embodiments include a scraper having an elongated handle and a scraper head for fixedly holding a blade, the scraper head being pivotably mounted to an end of the handle for positioning the scraper head at a selected angle to the handle. A lock, engageable with the handle and the scraper head, fixes the scraper head at the selected angle. The lock has a knob for gripping the scraper, and the handle has a rear grip, thus allowing the user greater control of the scraper.

1 . A scraper comprising:
 an elongated handle;   a scraper head for fixedly holding a blade, the scraper head being pivotably mounted to a first end of the handle for positioning the scraper head at a selected angle to the handle; and   a lock engageable with the handle and the scraper head for fixing the scraper head at the selected angle.   
     
     
         2 . The scraper of  claim 1 , wherein the lock comprises a shaft which engages respective through-holes in the handle and the scraper head to pivotably mount the scraper head to the handle, and
 wherein the shaft further engages a fastener for fixing the scraper head at the selected angle.   
     
     
         3 . The scraper of  claim 2 , wherein the lock further comprises a knob at one end of the shaft for engaging the shaft and the fastener, and for secure gripping of the scraper by a user. 
     
     
         4 . The scraper of  claim 3 , wherein the shaft is threaded, and the fastener has threads for engaging the threads of the shaft, and the knob is for tightening the shaft to the fastener. 
     
     
         5 . The scraper of  claim 2 , wherein the handle has a first splined detent ring, and the scraper head has a second splined detent ring for engaging the first splined detent ring, for positioning the scraper head at the selected angle when the shaft engages the through-holes in the handle and the scraper head. 
     
     
         6 . The scraper of  claim 1 , wherein the blade is removable. 
     
     
         7 . The scraper of  claim 1 , wherein the handle comprises a rear grip at a second end of the handle remote from the first end, for gripping of the handle by a user. 
     
     
         8 . The scraper of  claim 7 , wherein the rear grip comprises a recessed portion for accommodating a thumb of the user when the user is gripping the handle. 
     
     
         9 . The scraper of  claim 7 , wherein the handle is hollow, and comprises a blade storage compartment inside the rear grip. 
     
     
         10 . The scraper of  claim 9 , wherein the rear grip comprises a removable end cap for accessing the blade storage compartment. 
     
     
         11 . The scraper of  claim 10 , wherein the end cap comprises an opposing pair of resilient tabs having buttons which engage a pair of corresponding through-holes in the rear grip to retain the end cap on the rear grip, and to allow removal of the end cap from the rear grip when the user depresses the buttons. 
     
     
         12 . The scraper of  claim 10 , wherein the end cap has threads, and the rear grip has threads for engaging the end cap threads to removably attach the end cap to the rear grip. 
     
     
         13 . The scraper of  claim 10 , wherein the end cap attaches to the rear grip via a friction fit. 
     
     
         14 . The scraper of  claim 9 , wherein the rear grip comprises a hinged end cap for accessing the blade storage compartment. 
     
     
         15 . The scraper of  claim 14 , wherein the end cap comprises a resilient latch which engages a through-hole in the rear grip to retain the end cap on the rear grip, and to allow removal of the end cap from the rear grip when the user depresses the latch. 
     
     
         16 . The scraper of  claim 14 , wherein the end cap comprises an internal positioning section to hold spare blades in position in the blade storage compartment when the end cap is closed. 
     
     
         17 . The scraper of  claim 10 , wherein the end cap comprises an internal positioning section to hold spare blades in position in the blade storage compartment when the end cap is closed.