| 摘要 |
<p>A device for locking machining tools such as grinding wheels and saw blades to the associated drive shafts by means of the inner envelope surface of a unit (3) permanently secured to a drive shaft (11), and the outer envelope surface of a sleeve (1) acting as a holder for a grinder or saw blade, said envelope surfaces abutting or substantially abutting each other, the unit (3) being provided with cavities (9), each cavity containing a spring-actuated ball (6) which is able to partially protrude through a recess in the envelope surface of units (3).</p> |
