ES168434U - A provision of perforation bar insertion. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Punch bar insertion arrangement comprising a cutting tool having an externally pink pin and a cutting head at one end of the spigot an adjustment sleeve comprising internally aligned internally threaded inner and outer portions that are threaded with the spigot of the cutting tool and which are interconnected to rotate as a unit relative to the spigot but are movable axially relative to each other to eliminate axial play between the engaged threads of the shank and sleeve portions a bushing coaxially surrounding the sleeve of adjustment and which is adapted to be firmly secured to a bar and bearing elements in the adjusting sleeve and the bushing that prevent the rotation of the pin that allow axial movement with respect to the bushing and which prevent axial movement of the adjustment sleeve but that allow the rotation with respect to the bushing so that the rotation of the adjusting sleeve goes the axial movement of the tool with respect to the adjusting sleeve and the bushing is characterized in that the bushing comprises axially aligned inner and outer portions, the outer portion of the bushing being adapted to be firmly secured to a perforated bar and the bushing also comprising spring means which prevent the relative rotation of the bushing portions while allowing relative axial movement and elastically loading the inner portion of the bushing axially relative to the outer portion of the bushing and coupling means that positively interconnect the inner portion of the bushing and the inner portion of the bushing. Adjustment for the axial movement set so that the axial elastic load is transferred from the inner portion of the bushing to the inner portion of the adjustment sleeve. (Machine-translation by Google Translate, not legally binding)