Hand-Held Power Tool and Protective Device for a Hand-Held Power Tool

Abstract

A hand-held power tool has a housing and a drive motor arranged in the housing. A blower wheel is provided, wherein the housing has at least one area provided with openings allowing passage of air conveyed by the blower wheel. A protective device is arranged on an exterior wall of the housing, wherein the protective device has a damping area and the damping area protects the housing in the area provided with the openings from mechanical impact loads.

What is claimed is: 
     
         1 . A hand-held power tool comprising:
 a housing,   a drive motor arranged in the housing;   a first blower wheel, wherein the housing has at least one area provided with openings allowing passage of air conveyed by the first blower wheel;   a protective device arranged on an exterior side of the housing, wherein the protective device has a damping area and the damping area protects the housing in the area provided with the openings from mechanical impact loads.   
     
     
         2 . The power tool according to  claim 1 , wherein the first blower wheel is a fan wheel that conveys cooling air to the drive motor. 
     
     
         3 . The power tool according to  claim 2 , comprising a second blower wheel conveying working air of the power tool. 
     
     
         4 . The power tool according to  claim 1 , wherein the first blower wheel conveys working air of the power tool. 
     
     
         5 . The power tool according to  claim 1 , wherein the housing has webs in the area provided with the openings, wherein the webs separate the individual openings from one another. 
     
     
         6 . The power tools according to  claim 1 , wherein the protective device is arranged on an area of the housing that projects outwardly. 
     
     
         7 . The power tool according to  claim 1 , wherein the drive motor is an internal combustion engine and the power tool has a starter device for the internal combustion engine wherein the protective device is arranged on the housing in the area where the starter device is located. 
     
     
         8 . The power tool according to  claim 1 , wherein the damping area of the protective device is at least partially comprised of an elastic material. 
     
     
         9 . The power to according to  claim 8 , wherein the elastic material is rubber or a thermoplastic elastomer. 
     
     
         10 . The power tool according to  claim 1 , wherein the protective device comprises a first material and a second material and wherein the first material and the second material have different mechanical properties. 
     
     
         11 . The power tool according to  claim 1 , wherein the damping area of the protective device is solid. 
     
     
         12 . The power tool according to  claim 1 , wherein the damping area of the protective device has at least one cavity. 
     
     
         13 . The power tool according to  claim 1 , wherein the protective device is detachably secured on the housing. 
     
     
         14 . The power tool according to  claim 1 , wherein the protective device is secured on the housing by a locking connection wherein the protective device has at least one locking finger that is locked in one of the openings of the housing. 
     
     
         15 . The power tool according to  claim 1 , wherein the protective device is secured on the housing by an adhesive connection. 
     
     
         16 . The power tool according to  claim 1 , wherein the protective device is injection-molded to the housing. 
     
     
         17 . A protective device for a hand-held power tool, wherein the protective device has a damping area for protecting a housing of the power tool from mechanical loads and at least one attachment means attaching the protective device on the housing of the power tool. 
     
     
         18 . The protective device according to  claim 17 , wherein the at least one attachment means is releasable. 
     
     
         19 . The protective device according to  claim 17 , wherein the at least one attachment means has at least one locking hook arranged on a locking finger and wherein the locking finger is attached to the damping area. 
     
     
         20 . The protective device according to  claim 17 , wherein the damping area is annular.