Patent ID: 7390087

Claim:
A pair of industrial safety glass comprising: a glasses frame including a connection means connected to each of both ends thereof, a first coupling part and a second coupling part, said second coupling part being formed on at least one of said connection means, said first coupling part being releasably coupled to said second coupling part; and a wearing means having two ends respectively connected to said two ends of said connection means, and said wearing means at least comprising an adjustable unit so as to adjust the length of said wearing means for being suitable for different workers having different sized heads, said adjustable unit being disposed on said two ends of said wearing means, and said adjustable unit includes a sliding rod and a sleeve, said sliding rod being disposed at said end of said wearing means, said sliding rod has a recessed region on a rod body thereof for holding an elastic means and a ball from bottom to top in sequence, said sleeve being sleeved outside of said sliding rod, and one end of said sleeve being connected to said connection means, and said sleeve has a plurality of through holes spaced at intervals corresponding to said recessed region of said sliding rod, whereby said ball can be positioned in one of said through holes.