Patent ID: 11945019
Assignee: BEHNAM NEDAIE
Field: Machine tools (Mechanical engineering)
Classification: CPC B  F  Y | IPC B  F

Claim 0:
1. An apparatus for converting between reciprocating, linear motion and rotational motion, the apparatus comprising:
a sliding member constrained to reciprocate linearly relative to a stationary member, the sliding member having a sliding member longitudinal axis;
a connecting member rigidly coupled to the sliding member at a first end of the connecting member, the connecting member having a connecting member longitudinal axis;
a cam rigidly coupled to a cam shaft, the cam shaft having an axis of rotation intersecting with and perpendicular to the sliding member longitudinal axis, the cam having a non-circular, arcuate periphery and a lip having a constant thickness extending from the periphery of the cam in a direction parallel to the axis of rotation of the cam shaft, said non-circular cam having a geometry profile which determines the position, speed and acceleration of the sliding member; and
a pin assembly for coupling a second end of the connecting member to the cam, the pin assembly configured to rotate the cam as the sliding member reciprocates and likewise to move the sliding member as the cam rotates; the pin assembly being configured to engage and roll along the periphery of the cam upon the sliding member reciprocating relative to the stationary member, said pin assembly comprises:
a first pin having a first bushing engaging an outer surface of the lip;
a second pin having a second bushing engaging an inner surface of the lip, the second pin being spaced from and parallel to the first pin; and
a linking member linking the first pin and the second pin;
wherein the first bushing is configured to roll along the outer surface of the lip and the second bushing is configured to roll along the inner surface of the lip upon the sliding member reciprocating relative to the stationery member.