Transmission assembly for switchbox

A transmission assembly of a switchbox, the assembly comprising:

• a shaft;
• a first cam including a first surface, a second surface opposite the first surface, a bore connecting the first and second surfaces, and a lobe, the shaft disposed through the bore of the first cam;
• a second cam including a first surface, a second surface opposite the first surface, a bore connecting the first and second surfaces, and a lobe, the shaft disposed through the bore of the second cam;
• wherein when the first surface of the first cam engages the first surface of the second cam, a portion of the lobe of the first cam is coplanar with a portion of the lobe of the second cam;
• and
• further comprising a locking member coupled to the first cam and coupled to the shaft such that the first cam does not rotate relative to the second cam.

A method of assembling a transmission assembly for use with a switchbox, the method comprising:

• disposing a shaft through a cam sub-assembly including a first cam and a second cam, and through a bore of a locking member, the cam sub-assembly including a first side and a second side opposite the first side, wherein a first surface of the locking member faces the first side of the cam sub-assembly;
• securing the locking member to the shaft via a first lock ring;
• placing a spring between the second side of the cam sub-assembly and a hub, the hub operatively coupled to the shaft with the shaft extending through the hub and secured to the shaft by a second lock ring with the second lock ring bearing against the hub from above, and with the spring bearing against the hub from below;
• disengaging the first surface of the locking member from the first side of the cam sub-assembly;
• moving the first and second cams from an initial position into a first position relative to the shaft;
• engaging the first side of the cam sub-assembly with the first surface of the locking member.