Anti-kickback device for a table saw machine

An anti-kickback device for a table saw machine which includes a table top having an opening that extends along a cutting path in a longitudinal direction, and a saw blade mounted under the table top and extending through the opening for cutting a workpiece along the cutting path, said anti-kickback device comprising:

• a riving knife adapted to be mounted rearwardly of the saw blade along the cutting path, and having a plate body which includes a height-adjustable segment and a splitting segment that are disposed opposite to each other in an upright direction, said splitting segment having two major surfaces opposite to each other in a transverse direction, and a top surface which interconnects said major surfaces, said splitting segment having a retaining hole which extends through said major surfaces in the transverse direction;
• an elongate mount having upper and lower surfaces opposite to each other in the upright direction, said upper surface having a cavity which extends towards said lower surface to form an inner tubular wall and terminates at a seat wall, said lower surface having an insert groove which extends upwardly through said seat wall and which extends rearwardly such that said splitting segment is inserted into said insert groove and said retaining hole is located in said cavity;
• and
• a fastening unit including
• a post having a base portion which is received in said cavity, which cooperates with said inner tubular wall to define a surrounding route, and which straddles said top surface of said splitting segment, and a shank portion which extends upwardly of said cavity, said base portion having a radial bore that extends radially and that is registered with said retaining hole,
• a detent body disposed in said radial bore and movable between a retained position, where said detent body is engaged with said retaining hole, and a releasing position, where said detent body is clear of said retaining hole to thereby permit said elongate mount and said fastening unit to be detached from said splitting segment,
• a tubular actuator sleeved on said base portion and having an inner cam surface which is configured such that, when said tubular actuator is moved along the surrounding route from an upper position to a lower position, said inner cam surface moves said detent body from the releasing position to the retained position, and
• an operating member coupled with said shank portion so as to move said tubular actuator between the upper and lower positions.