| 摘要 |
A locking mechanism for the safety guards of handheld metal-working machines, particularly grinders, for safe operation assurance and injuries prevention in accidental tool damage. Locking mechanism includes a safety guard (1) with an inner metal band (2) covering (3) grinder's case. Metal band two ends (2) are connected via an adjustable screw joint (4) . On the metal band outer edge (2) above the case level (3) , locking teeth are located in sectors (6) . Safety guard (2) metal band (1) is pressed by a fixing plate (7) . Along its periphery a locking sector (8) and an angle catch (9) are oppositely located. Their diameter is larger than metal band diameter (2) . Fixing plate is attached to the grinder case (3) via fastening screws (10) . On the fixing plate a locking hole is drilled (11) where a locking pin is placed (12) ; it's on the case. Locking teeth height (6) exceeds fixing plate thickness (7) . |
