portable flayer, eccentric counterweight shaft for a portable flayer, and counterweight cup for a portable flayer

摘要

The present invention provides a handheld dehider comprising: a pair of cutting disks (12,14), a drive mechanism for driving the cutting disks (12,14) in opposed cutting oscillations including an eccentric shaft (22), a main drive gear connected to rotate the eccentric shaft (22), a pair of pushrods (18,20), one for each cutting disk, each pushrod being connected between the eccentric shaft (22) and its respective cutting disk, a first counterbalance mass (48) rotated by the main gear, the first counterbalance mass (48) being located on a first side of the pushrods (18,20); and a second counterbalance mass (54) rotated by the main gear, the second counterbalance mass (54) being located on an opposite side of the pushrods (18,20) from the first counterbalance mass (48), the first and second counterbalance masses cooperating to provide counterbalancing acting at a location between the first and second counterbalance masses to provide effective dynamic counterbalancing of the dehider, a motor (24) for driving the main drive gear; and a housing having the drive mechanism and motor mounted therein.