Portable handheld work apparatus

Abstract

A portable handheld work apparatus has a housing ( 2 ) having at least two housing parts. At least one spring clamp ( 6, 26, 36, 46, 56 ) is provided for the releasable attachment of the one housing part to the other housing part. The spring clamp ( 6, 26, 36, 46, 56 ) is provided to clamp the two housing parts. A wear protector ( 8 ) is effective between the two housing parts in the clamping direction ( 9 ). A simple configuration and few individual parts are achieved when the spring clamps ( 6, 26, 36, 46, 56 ) have the wear protector ( 8 ).

1 . A portable handheld work apparatus comprising:
 a housing having first and second housing parts;   a spring clamp for releasably attaching said second housing part to said first housing part in a predetermined clamping direction;   a wear protector arranged so as to be effective between said first and second housing parts in said clamping direction; and,   said spring clamp including said wear protector.   
   
   
       2 . The portable handheld work apparatus of  claim 1 , further comprising a clamping assembly including said spring clamp; said clamping assembly further including means for inseparably holding said spring clamp on said first housing part; and, said second housing part being supported on said wear protector. 
   
   
       3 . The portable handheld work apparatus of  claim 1 , wherein said spring clamp includes a spring bracket made of metal whereon said wear protector is formed. 
   
   
       4 . The portable handheld work apparatus of  claim 3 , wherein said metal is spring steel. 
   
   
       5 . The portable handheld work apparatus of  claim 1 , wherein said spring clamp has an attachment region whereat said spring clamp is held so as to be inseparable. 
   
   
       6 . The portable handheld work apparatus of  claim 5 , wherein said wear protector is disposed on said attachment region. 
   
   
       7 . The portable handheld work apparatus of  claim 5 , wherein said spring clamp has a spring bracket; and, said work apparatus further comprises a clamping assembly incorporating said spring clamp and said clamping assembly also includes a bearing pin on said first housing part and said spring bracket is arranged on said bearing pin at said attachment region. 
   
   
       8 . The portable handheld work apparatus of  claim 7 , wherein said second housing part is supported on said spring bracket in the region of said bearing pin. 
   
   
       9 . The portable handheld work apparatus of  claim 7 , wherein said spring bracket engages about the periphery of said bearing pin by more than 180°. 
   
   
       10 . The portable handheld work apparatus of  claim 7 , wherein said bearing pin is pressed into said first housing part and said bearing pin is made of metal and is hardened. 
   
   
       11 . The portable handheld work apparatus of  claim 1 , further comprising a clamping assembly incorporating said spring clamp; and, said clamping assembly further comprising means for positioning said first and second housing parts to each other in a direction transverse to said clamping direction. 
   
   
       12 . The portable handheld work apparatus of  claim 11 , wherein said positioning means comprises a guide arm formed on said spring clamp to lie against said first and second housing parts when said first and second housing parts are in a clamped state thereof to position said first and second housing parts in said direction transverse to said clamping direction. 
   
   
       13 . The portable handheld work apparatus of  claim 12 , wherein said first and second housing parts have respective first and second guide parts; said guide arm is a first guide arm and said positioning means comprises a second guide arm; and, said first and second guide arms clasp said first and second guide parts. 
   
   
       14 . The portable handheld work apparatus of  claim 13 , wherein said first and second guide parts lie coincident to each other in said clamping direction in said clamped state of said first and second housing parts. 
   
   
       15 . The portable handheld work apparatus of  claim 12 , wherein said guide arm lies against said first and second housing parts under a prestress in said clamped state thereof. 
   
   
       16 . The portable handheld work apparatus of  claim 11 , wherein said spring clamp includes a spring nose for clamping said first and second housing parts against each other; said spring clamp further includes an attachment region whereat said spring clamp is held so as to be inseparable; and, said positioning means, said spring nose and said attachment region are so aligned with respect to each other that first said positioning means and then said spring nose come into engagement with one of said housing parts when said spring clamp is pivoted into a clamped state of said housing parts. 
   
   
       17 . The portable handheld work apparatus of  claim 1 , further comprising positioning means for positioning said spring clamp in a plane perpendicular to said clamping direction relative to at least one of said housing parts. 
   
   
       18 . The portable handheld work apparatus of  claim 17 , wherein said positioning means is a first positioning means and said work apparatus further comprises a second positioning means for positioning said spring clamp in a second direction; and, said first positioning means and said second positioning means are arranged spatially separate from each other. 
   
   
       19 . The portable handheld work apparatus of  claim 17 , wherein said positioning means comprises at least one guide arm on said spring clamp. 
   
   
       20 . The portable handheld work apparatus of  claim 17 , wherein said wear protector is configured to have a curved shape to position said spring clamp; one of said housing parts has a curved section in correspondence to said wear protector; and, said wear protector and said curved section of said one housing part coact with each other when said housing parts are in a clamped state. 
   
   
       21 . The portable handheld work apparatus of  claim 1 , wherein said spring clamp is coated with plastic on regions thereof which can be seen in a clamped state of said housing parts. 
   
   
       22 . The portable handheld work apparatus of  claim 1 , wherein said spring clamp includes a manipulation section for releasing said spring clamp; and, said manipulation section and one of said housing parts conjointly define a gap accessible with a work tool for actuating said manipulation section therewith.