Patent ID: 11958121
Assignee: BLACK & DECKER, INC.
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 12:
13. A reciprocating device, comprising:
a guide bracket fixed to a housing;
a bushing movably coupled to the housing;
a reciprocating shaft, including:
a first end portion movably received in the guide bracket;
a second end portion configured to be coupled to an accessory tool; and
an intermediate portion movably received in the bushing; and

at least one roller coupled to the first end portion of the reciprocating shaft,
wherein the guide bracket includes a guide slot defining a guide surface having a curved contour, wherein the guide surface is configured to guide a rolling motion of the at least one roller as the reciprocating shaft reciprocates relative to the guide bracket,
wherein, in response to movement of the at least one roller along the guide surface, the first end portion of the reciprocating shaft moves in a first direction with respect to a longitudinal centerline of the guide slot, and the second end portion of the reciprocating shaft moves in a second direction, opposite the first direction.