Circular sawing machine

A circular sawing machine comprising:

• a base table provided with a projection;
• a main support link having a first end swingably pivoted to the base table about a first pivotal point;
• a disk link pivoted at a central portion thereof to the base table about the first pivotal point, the disk link having a third pivotal point at a portion thereof different from the central portion and the disc link being provided with a recessed portion with which the projection of the base table is to be engageable so that when an end portion of the recessed portion abuts against the projection a rotational motion of the disc link is limited;
• a support arm having a first end pivoted to a second end of the main support link to be swingable about a second pivotal point formed on the second end of the main support link;
• a circular saw blade mounted to a second end of the support arm to be rotatable about a rotational shaft thereof;
• and
• a swing motion limiting link having first and second ends, said swing motion limiting link being pivoted at the first end thereof to the disk link about the third pivotal point formed on the disc link and pivoted at the second end thereof about a fourth pivotal point formed on the support arm, said swing motion limiting link being disposed to a circular saw blade side with respect to the main support link.