Electrically powered garden tool
An electrically powered garden tool includes an electric motor mounted upright within an outer shell housing, a pair of relatively reciprocating shear blades assembled to be driven by operation of the motor through a crank mechanism provided within a lower portion of the outer shell housing, and a cooling fan assembled to be driven by operation of the motor for introducing outside air into an upper portion of the outer shell housing to exhaust the introduced air from a lower portion of the outer shell housing. In the garden tool, a downward exhaust opening is formed within a lower end peripheral wall of the outer shell housing enclosing the crank mechanism such that the air spouted by rotation of the cooling fan blows out downward from the downward exhaust opening to restrain the occurrence of blowing noise of the air.
1. An electrically powered garden tool, comprising:
an electric motor having a drive shaft and mounted upright within an outer shell housing,
a pair of relatively reciprocating shear blades assembled to be driven by operation of said motor through a crank mechanism provided within a lower portion of said outer shell housing,
and a cooling fan assembled to be driven by operation of said motor for introducing outside air into an upper portion of said outer shell housing and for exhausting the introduced air from said lower portion of said outer shell housing,
wherein a downward exhaust opening is formed within a lower end of a peripheral wall of said outer shell housing enclosing the crank mechanism,
wherein the downward exhaust opening is opened in a downward direction and is devoid of any obstacle such that the air, spouted by rotation of said cooling fan, blows out in the downward direction from the downward exhaust opening, wherein the downward direction extends in a direction of a central axis of said outer shell housing that extends from said upper portion of said outer shell housing to said lower portion of said outer shell housing,
said lower end of said peripheral wall of said outer shell housing extending such that exhausted air is blown out from the downward exhaust opening without being obstructed by any parts of the garden tool in a direction generally parallel to a longitudinal axis of said drive shaft of said motor, and wherein
a noise absorption element is attached to an inner surface of said peripheral wall of said outer shell housing.
2. The electrically powered garden tool as claimed in claim 1 , wherein a motor housing is assembled within said outer shell housing to contain therein said electric motor, cooling fan and crank mechanism, and wherein said motor housing is provided with an exhaust opening to exhaust the air spouted by rotation of said cooling fan so that the spouted air blows out in the downward direction from the downward exhaust opening of said outer shell housing and through a space between the peripheral walls of said motor housing and said outer shell housing.