Reciprocating blade apparatus and handheld working machine

[0019]Hereinafter, an embodiment of the present invention will be described with reference to the drawings. The same reference numbers in the different drawings indicate the same functional parts, and therefore repeated description for each of the drawings is omitted.

[0020]As illustrated in FIGS. 1 and 2, a reciprocating blade apparatus 1 includes a pair of reciprocating blades 2 (hereinafter referred to as “blade member”), a transmission case 3, and a blade support member 4. The reciprocating blade apparatus 1 is configured to cut and mow plants and so forth by sliding and reciprocating the blade member 2 relative to one another.

[0021]The blade member 2 includes two blades 2A and 2B made of metal plates which are stacked in the thickness direction (Z direction in the drawings). Each of the blades 2A and 2B of the blade member 2 includes a base 20 as a flat plate extending in the longitudinal direction (X direction in the drawings) and a plurality of teeth 21 protruding in the directio