An assembly for converting motion comprises a first arm and a second arm rotatable about first and second fixed pivots; a third arm pivotably connected to the second arm; a first connecting arm pivotably connected to and extending between the first arm and the third arm; a second connecting arm pivotably connected to and extending between the first arm and the second arm; and a locking assembly comprising a first locking member and a second locking member, the first locking member connected to one of the arms and engaging with the second locking member at one or more positions from the retracted position to the extended position. The assembly may comprise the guide assembly comprising a guide member and an engagement member moveably engageable with the guide member.

An assembly for converting motion comprises a first arm and a second arm rotatable about first and second fixed pivots; a third arm pivotably connected to the second arm; a first connecting arm pivotably connected to and extending between the first arm and the third arm; a second connecting arm pivotably connected to and extending between the first arm and the second arm; and a locking assembly comprising a first locking member and a second locking member, the first locking member connected to one of the arms and engaging with the second locking member at one or more positions from the retracted position to the extended position. The assembly may comprise the guide assembly comprising a guide member and an engagement member moveably engageable with the guide member.

An assembly for converting motion comprises a first arm rotatable at a first position about a first fixed pivot; a second arm rotatable at a first position about a second fixed pivot; a third arm linked at a first position to the second arm at a second position on the second arm, the third arm being linked at a second position to the first arm at a second position on the first arm; wherein one of the first and second positions on the third arm is moveable and the other of the first and second positions is fixed relative to the third arm; and a connecting arm extending between the first arm and the second arm, the connecting arm pivotably connected at a first position to a third position on the first arm and pivotably connected at a second position to the second position on the second arm.

An assembly for converting motion comprises a first arm rotatable at a first position about a first fixed pivot; a second arm rotatable at a first position about a second fixed pivot; a third arm linked at a first position to the second arm at a second position on the second arm, the third arm being linked at a second position to the first arm at a second position on the first arm; wherein one of the first and second positions on the third arm is moveable and the other of the first and second positions is fixed relative to the third arm; and a connecting arm extending between the first arm and the second arm, the connecting arm pivotably connected at a first position to a third position on the first arm and pivotably connected at a second position to the second position on the second arm.

A device for amplifying a force includes a prime mover configured to receive a first force, and a secondary mover configured to generate a second force that is greater than the first force in response to the prime mover receiving the first force. The prime mover includes an output that, in response to the first force, rotates about a first axis through a power stroke defined by an angular displacement that is less than ninety degrees. The prime mover's output includes a first end that revolves about the first axis during the power stroke. The secondary mover includes an input, an output, and a body. The input includes a second end that is coupled with the first end of the prime mover's output, and that, as the first end of the prime mover's output revolves about the first axis through the power stroke, the second end of the secondary mover's input also revolves about the first axis and moves relative to the secondary mover's body. The secondary's mover's output is configured to apply the second force to an object. The secondary mover's body is pivotally anchored at a location such that as the first end of the prime mover's output revolves about the first axis through the power stroke, the body of the secondary mover pivots about a second axis that passes through the location. The position of the device's secondary mover relative to the first end of the prime mover's output is such that, as the first end approaches the end of the power stroke, the first end of the prime mover's output accelerates, without an additional force applied to the prime mover's output.

A display device includes a display panel, a first lift member connected to a side of the display panel and including a first elevation member rotating in a first rotation direction, a second lift member connected to another side of the display panel and including a second elevation member rotating in a second rotation direction different from the first rotation direction, a drive member connected to the first lift member and the second lift member, the drive member rotating the first elevation member and the second elevation member, a first link member having a side connected to the first elevation member, a second link member having a side connected to the second elevation member, a first sync gear connected to another side of the first link member, and a second sync gear engaged with the first sync gear and connected to another side of the second link member.

A robotic manipulator comprises a plurality of spring compensated joints, each including a four-bar linkage mechanism, a gravity compensating spring, a spring adjustment mechanism, a spring adjustment actuator and an inertial actuator. The gravity compensating spring is coupled between two links of the four-bar linkage mechanism at two different spring attachment points to provide a lifting force opposing a gravitational load force. The spring adjustment mechanism is coupled to alter a position of one of the spring attachment points. The spring adjustment actuator is coupled to move the spring adjustment mechanism to alter the position of the spring attachment point and adjust the amount of lifting force provided by the spring. The inertial actuator is coupled between links of the four-bar linkage mechanism to effectuate rotational movement of the four-bar linkage mechanism and apply an adjustable amount of force to accelerate and manipulate a payload handled by the robotic manipulator.

A robotic manipulator comprises a plurality of spring compensated joints, each including a four-bar linkage mechanism, a gravity compensating spring, a spring adjustment mechanism, a spring adjustment actuator and an inertial actuator. The gravity compensating spring is coupled between two links of the four-bar linkage mechanism at two different spring attachment points to provide a lifting force opposing a gravitational load force. The spring adjustment mechanism is coupled to alter a position of one of the spring attachment points. The spring adjustment actuator is coupled to move the spring adjustment mechanism to alter the position of the spring attachment point and adjust the amount of lifting force provided by the spring. The inertial actuator is coupled between links of the four-bar linkage mechanism to effectuate rotational movement of the four-bar linkage mechanism and apply an adjustable amount of force to accelerate and manipulate a payload handled by the robotic manipulator.

A drive train linkage includes a drive arm having a drive arm pivot axis, a driven arm having a driven arm pivot axis, at least one first coupling member extending between and being rotatably coupled to each of the drive arm and driven arm, and at least one second coupling member extending between and being rotatably coupled to each of the drive arm and driven arm so that the at least one second coupling member opposes the at least one first coupling member, where the at least one first coupling member and the at least one second coupling member are coupled to both the drive arm and the driven arm so to form a substantially zero mechanical deadband coupling between the drive arm and the driven arm.

A drive train linkage includes a drive arm having a drive arm pivot axis, a driven arm having a driven arm pivot axis, at least one first coupling member extending between and being rotatably coupled to each of the drive arm and driven arm, and at least one second coupling member extending between and being rotatably coupled to each of the drive arm and driven arm so that the at least one second coupling member opposes the at least one first coupling member, where the at least one first coupling member and the at least one second coupling member are coupled to both the drive arm and the driven arm so to form a substantially zero mechanical deadband coupling between the drive arm and the driven arm.