Device for the rational use of the key portion of the machine drill

摘要

Device for the rational use of key of spindle of machine drill ". The patent device understood by clip in the form of the belt is characterized by embracing a adjustable (Fig.(b) or fixed, the shaft of the key mandrel 5, without limiting the free rotation 9 of the same (fig.g) being interconnected by elastic cord 1 to a support (Fig. (d), solidarizado to the machine body (Fig.(E) by double face adhesive tape 10. The clip and the key to remain attached to the support by means of a tape "Velcro" 7, maintaining sufficient removal of a mandrel (Fig.(f) without disturbing the operation of the machine, with the ideal proximity to facilitate the replacement of drill bits, and (Fig. (f) to release the key with a slight pull 12 by the bootstrap, embedding (Fig.(g) and rotating normally 9 to loosen the mandrel.Once swapped the drill, the clip is again affixed on the support, sympathetic to the machine body, and the device ready for reuse (Fig. (f).By rationalizing the use of key of mandrel, eliminate all drawbacks currently existing in machines sold.The device provides great saving of time, maximum comfort in work performance, and reaches the main goal currently pursued: to increase productivity with greater security.