Auxillary device for a lawn mower

An auxiliary device adapted to be electrically connected to a lawn mower which includes a base seat, two pairs of front and rear wheels mounted to space the base seat apart from the ground, a first motor mounted on the base seat and having a first output shaft with a first axis and extending downwardly towards the ground, a rotary blade driven by the first motor and rotatable about the first axis, and a power supplying member for supplying electrical energy to the first motor, the two front wheels having two foremost portions which are distal to the base seat and which define a front boundary line, each pair of the front and rear wheels having two lateral walls which are distal to the base seat and which define a lateral boundary line, said auxiliary device comprising:

• a connecting member having a first coupling portion adapted to be mounted to the base seat and a second coupling portion extending from said first coupling portion in a first direction, said second coupling portion having a first mounting wall facing towards the first direction;
• an anchoring member having a second mounting wall that confronts said first mounting wall;
• an operating member having a secured portion connected to said anchoring member at a position distal to said second mounting wall, and an operating portion extending from said secured portion in a second direction transverse to the first direction and adapted to be disposed beyond and outwardly of one of the front and lateral boundary lines;
• an interconnecting member disposed between said first and second mounting walls to permit said anchoring member to rotate relative to said second coupling portion around an adjusting axis that is parallel to the first direction;
• a second motor mounted in said operating portion and having a second output shaft with a second axis extending in the second direction, said second motor being adapted to be powered by the power supplying member;
• a grass cutting member mounted on said operating portion and driven by said second output shaft to rotate about the second axis such that a sweeping plane of said grass cutting member is adjusted by angular movement of said anchoring member relative to said second coupling portion between a first position where the second axis is parallel to the first axis so as to increase a mowing area of the lawn mower, and a second position where the second axis is inclined to the first axis so as to enable said grass cutting member to be operated on an obstructed area;
• and
• a locking member disposed between said second coupling portion and said anchoring member to arrest relative rotation between said second mounting wall and said first mounting wall.