Point contact pendulum saw has new type of roller oscillation module replacing pendulum suspension, the saw tool describing a curved path that is not part of circle but part of double cycloid curve

摘要

The saw has a new type of roller oscillation module replacing the pendulum suspension and that works without play and friction, requires no lubricant and is almost wear-free. The saw tool (2) describes a curved path not part of a circle but part of a double cycloid curve. It is attached to a housing via at least two pairs of pendulum arms (3).