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    • 3. 发明授权
    • ROTATIONSBÜRSTENWERKZEUG
    • EP0347429B1
    • 1996-01-31
    • EP88905195.9
    • 1988-06-05
    • Montabaur, Werner
    • Montabaur, Werner
    • B24D9/02B24D13/10
    • B24D13/10A46B13/003B24D9/02
    • The invention concerns a rotary belt tool for surface working which is much more versatile and effective than known tools but is nevertheless easy to handle, durable, safe, easily maintained, as well as compact and economical. The belt of the tool is designed as an endless, narrow closed ring to which are attached radial external elements such as bristles, teeth, abrasive grain, or burnishing compounds. The belt is attached along its entire periphery to the periphery of the axial surface shell of a single belt carrier which can rotate. The tool, for example for structuring wood, finishing leather, or derusting steel profiles, can be designed as a wire brush, in which the bristles which extends radially outward from the tool axis as the axis of rotation can be attached, for example, in an equally spaced non-rotatable manner to their main bristle axis such that bristles positioned one behind the other in the peripheral direction are laterally offset to one another in the axial direction and the end regions of the bristles for example also in the peripheral direction can be slightly bent, the tips of the bristles can be smooth, and the rate of removal of material can be appreciably varied by changing the direction of rotation of the tool. By varying the lengths of the bristles, for example, over the axial length of the tool, rods of any type of material having a profile cross-section in the longitudinal direction can be surface worked over partial contour regions.
    • 9. 发明公开
    • Quick change grinder bit holder
    • 快换座磨削
    • EP1166967A2
    • 2002-01-02
    • EP01110867.7
    • 2001-05-04
    • Technicor, Inc.
    • Hacikyan, Michael
    • B24D9/02
    • B24B45/00B24D9/02
    • The present invention is an expanding device for supporting grinding sleeves. The device has a cylindrical member with an outer bushing unit, an interior bushing unit, an upper control unit, an expanding unit, and a locking mechanism. The outer bushing unit receives the grinding sleeve, and has a first outer diameter of D, and a height H. The interior bushing unit receives a rotatable shaft, has a second outer diameter of I, which is less than D, and a height J, which is less than H. The expanding unit extends from within the upper control unit and between the outer and interior bushing units with protrusions below the outer and interior bushing units. The locking mechanism is interconnected to the upper control unit. And when the locking mechanism is in the unlocked position, a grinding sleeve, which can have diamonds thereon, can be placed on or taken off the outer bushing unit and the device can be placed on or taken off a rotatable shaft. Obviously, when the locking mechanism is in the locked position, the grinding sleeve is locked in place on the outer bushing unit, and the device is secured to a rotatable shaft because the locking mechanism alter the position of the expanding unit which expands the outer diameter and shortens the height of the outer bushing unit, and simultaneously expands the interior diameter and shortens the height of the interior bushing unit.