Power operated rotary knife with vacuum attachment assembly

摘要

A power operated rotary knife including: a handle assembly, a head assembly and a vacuum attachment assembly. The handle assembly includes an elongated cylindrical handle housing defining a handle assembly longitudinal axis extending through a throughbore of the handle housing. The head assembly includes a rotary knife blade rotatably supported for rotation about an axis of rotation in a blade housing and a frame securing the blade housing to the distal end of the handle assembly in a position offset from the handle housing, the axis of rotation of the rotary knife blade being spaced apart from and parallel to the handle longitudinal axis. The vacuum attachment assembly includes an adapter including an upper boss affixed to the frame and a body for receiving a vacuum hose. A central axis of the adapter is parallel with respect to the rotary knife blade central axis and the handle assembly longitudinal axis.

主权项

1. A power operated rotary knife comprising:
an elongated handle assembly defining a handle assembly longitudinal axis; a head assembly coupled to and extending from a distal end of the handle assembly, the head assembly including a rotary knife blade supported by a blade housing for rotation about a central axis of rotation, the rotary knife blade including an annular body having an inner wall and a radially spaced apart outer wall, the inner wall defining a central open region extending from a first end to a spaced apart second end of the annular body and a drive section adjacent a first end of the annular body, the drive section defining a driven gear including a set of gear teeth formed in the outer wall of the annular body, and a blade section adjacent a second end of the annular body, the head assembly further including a frame, the blade housing and the handle assembly releasably coupled to the frame, the blade housing being radially offset from the handle assembly longitudinal axis such that the central axis of rotation of the rotary knife blade is spaced apart from and is substantially parallel to the handle assembly longitudinal axis; and a vacuum attachment assembly including a vacuum adapter and a vacuum hose, the vacuum adapter having a proximal end and an axially spaced apart distal end, an inner wall defining a central open region of the vacuum adapter extending from the proximal end to the distal end, the open central region of the vacuum adapter defining an adapter central axis and being in fluid communication with the central open region of the annular body of the rotary knife blade, the vacuum hose secured to the proximal end of the vacuum adapter, the distal end of the vacuum adapter including a housing clamp coupled to the frame with the blade housing secured between the housing clamp and the frame, the adapter central axis extending substantially parallel to the central axis of rotation of the rotary knife blade.