Saw blade guard quick release structure and method for locking and unlocking saw blade guard

摘要

A saw blade guard quick release structure and a method for locking and unlocking saw blade guard includes a locating member, a connection member, and a retaining unit. The locating member has two retaining notches. The connection member includes a first guide portion and a second guide portion. The retaining unit is installed on the connection member, including a linking member, a drag member movable along the first guide portion, two retaining members respectively pivotally connected to the drag member and movable along the second guide portion, and a spring member. The method includes mounting the connection member directly on the locating member and selectively engaging the retaining members with the locating notches, thereby locking or unlocking the saw blade guard.

主权项

1. A saw blade guard quick release structure, comprising:
a locating member having two retaining notches defined therein; a connection member affixed to a saw blade guard, said connection member comprising a first guide portion and two second guide portions located at two opposite sides of said first guide portion, said first guide portion extending along a first direction, said second guide portion extending along a second direction, perpendicular to the first direction; and a retaining unit mounted to said connection member and selectively fastenable to said locating member, said retaining unit having a linking member, a drag member connected to said linking member and slidable along said first guide portion between a first position and a second position, two retaining members respectively pivotally connected to said drag member, and a spring member sandwiched between said linking member and said connection member and adapted to impart a pressure to bias said drag member toward said first position, each said retaining member having a retaining rod slidable along respective second guide portions and selectively engageable in said retaining notches, said retaining members and said drag member being mutually driven by each other between a locking position and an unlocking position; wherein said retaining rods of said retaining members are respectively engaged with said retaining notches in a locking position, and said retaining rods of said retaining members are respectively disengaged from said retaining notches in an unlocking position.