Portable handheld work apparatus
AssigneeAndreas Stihl AG & Co. KG
InventorsGerhard Stoll, Andreas Schneider, Jürgen Steinmaier
Life of this patent
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Abstract
The invention is directed to a portable handheld work apparatus such as a brushcutter, edge cutter or the like. The work apparatus has a drive motor which drives a rotatable work tool via a drive shaft (3) journalled in a guide tube (2). The guide tube (2) is held in a housing (5) of the drive motor by an anti-vibration unit (6). The anti-vibration unit (6) includes a clamp (7) which surrounds the guide tube (2) and elastic damping elements (8, 9) which lie between the clamp (7) and the housing (5). The clamp (7) surrounds the guide tube (2) and is fixed form tight on the housing (5).
Claims22
A portable handheld work apparatus comprising:
- a housing;
- a guide tube having first and second ends;
- a drive shaft rotatably journalled in said guide tube;
- a rotatable work tool mounted at said second end of said guide tube;
- a drive motor mounted in said housing for rotatably driving said work tool via said drive shaft;
- an anti-vibration unit for holding said guide tube in said housing at said first end of said guide tube;
- said anti-vibration unit including a clamp surrounding said guide tube;
- an elastic damping element disposed between said housing and said clamp;
- said clamp and said housing being configured for fixing said clamp form tight in said housing;
- said clamp being configured as an approximately cylindrical clamping sleeve defining a longitudinal slit and having two clamping lugs arranged laterally of said longitudinal slit;
- said clamping lugs extending radially outwardly and being clampable against one another;
- said housing having an end portion directed toward said guide tube;
- and,
- said end portion having a cutout for accommodating said clamping lugs therein.
A portable handheld work apparatus comprising:
- a housing;
- a guide tube having first and second ends;
- drive shaft rotatably journalled in said guide tube;
- a rotatable work tool mounted at said second end of said guide tube;
- a drive motor mounted in said housing for rotatably driving said work tool via said drive shaft;
- an anti-vibration unit for holding said guide tube in said housing at said first end of said guide tube;
- said anti-vibration unit including a clamp surrounding said guide tube;
- an elastic damping element disposed between said housing and said clamp;
- and,
- said clamp and said housing being conjointly configured for fixing said clamp form closed in said housing so as to interlock said clamp and said housing to prevent a rotation of said clamp and said housing relative to each other.
Dependencies are inferred from the claim text.