Five-way adjustable form block holder with float capabilities

Details Five-way adjustable form block holder with float capabilities Five-way adjustable form block holder with float capabilities

B - Operations, Transporting

24

B

51/58

B24B 21/06 (2006.01) B24B 21/08 (2006.01)

Patent

CA 2023799

ABSTRACT OF THE DISCLOSURE A form block holder is provided for an endless belt type working machine such as a sander. Positioning of the block relative to the belt is provided in five distinct directions, i.e., up/down, forwards/backwards, yaw, pitch and roll, by a series of adjustments of interconnected shafts and sleeves. A float mode is also provided which yields to forces that tend to rotate the form block about an axis parallel to the belt travel and parallel with a support table, i.e., the pitch axis. A first end float shaft is surrounded by a support sleeve at one portion and is threadingly received in a handle. The remainder of the float shaft is surrounded by a cam sleeve comprising a first cam sleeve section ultimately connected to the form block holder and a second cam sleeve section. A spring biased washer is provided within the support sleeve about the float shaft and abuts the second cam sleeve section. To establish the float mode, a gap is provided between the support sleeve and the second cam sleeve section. Thus, pitch inducing forces cause the first cam sleeve section and form block holder to rotate about the float shaft, which in turn cause the second cam sleeve section to compress the spring biased washer. Once these forces terminate, the spring biased washer urges the second cam sleeve section back to its original position, whereby the first cam sleeve section and the form block holder are rotated back to their original positions.

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