Abstract: A locking mechanism includes a housing, a cam disposed within the housing, and a plurality of pawls disposed within the housing. The housing includes a first plate and a second plate. The second plate includes a peripheral lip having an interior face that defines a plurality of teeth. Each of the plurality of pawls defines a central axis. Each of the plurality of pawls includes a plurality of pawl teeth. The plurality of pawl teeth include a first middle tooth positioned on a first side of the central axis and a second middle tooth positioned on an opposing second side of the central axis. The first middle tooth has a first flat face facing the central axis and a first curved face facing away from the central axis. The second middle tooth has a second flat face facing the central axis and a second curved face facing away from the central axis.

Abstract: A carriage includes an elongated body having a first end and an opposing second end and a flange coupled to the first end of the elongated body. The flange includes a first portion having a first face and an opposing second face. The first portion defines a first aperture having a first diameter. The first portion includes (i) at least two first retainers protruding outward from the first face and extending at least partially over the first aperture and (ii) at least two second retainers protruding outward from the opposing second face and extending at least partially over the first aperture. The first retainers and the second retainers define a second diameter that is less than the first diameter. The first aperture, the first retainers, and the second retainers are configured to accommodate ball bearings having diameters between about 4.6 mm and about 5.4 mm.

Abstract: A track assembly includes a first track having first apertures, a second track having second apertures, and a latch assembly. The latch assembly includes a latch plate movable between an engaged position and a disengaged position. The latch plate includes first teeth that selectively extend through the first apertures and through at least one of the second apertures when the latch plate is in the engaged position. A gap is present between a first latch tooth of the first teeth and one of the first apertures when the latch plate is in the engaged position. The latch assembly includes an anti-chuck component coupled to the latch plate and including a second tooth that extends along a face of the first latch tooth. The second tooth extends laterally past both lateral edges of the first latch tooth to close the gap when the latch plate is in the engaged position.

Abstract: A track assembly includes a first track having a first support extending from a first surface of the first track. The first support includes a first curved end. The track assembly includes a second track slidably coupled to the first track. The second track includes a second support extending from a second surface of the second track. The second support includes a second curved end. The first support and the second support are positioned such that the second curved end interfaces with the first curved end.

Abstract: A track assembly includes a first track, a second track, and a latch assembly. The first track includes a plurality of first apertures. The second track includes a plurality of second apertures. The latch assembly includes a latch plate and an anti-chuck component. The latch plate includes a plurality of first teeth that selectively extend through the plurality of first apertures and through a subset of the plurality of second apertures. A gap is present between at least one of the plurality of first teeth and a side of a respective one of the plurality of first apertures when the latch plate is in the engaged position. The anti-chuck component is coupled to the latch plate. The latch plate includes one or more second teeth that engage at least one of the plurality of first apertures to close the gap.

Abstract: A track assembly includes a first track having a first inner surface, a first support coupled to the first inner surface, a second track having a second inner surface, and a second support coupled to the second inner surface. The second track is slidably coupled to the first track. The first support has a first free end that extends from the first inner surface at a downward sloping angle. The second support has a second free end that extends from the second inner surface at an upward sloping angle. The first support and the second support are positioned such that the second free end is disposed above the first free end.

Abstract: A track assembly includes a first track, a second track, and a latch assembly. The first track includes a plurality of first apertures. The second track includes a plurality of second apertures. The latch assembly includes a latch plate and an anti-chuck component. The latch plate includes a plurality of first teeth that selectively extend through the plurality of first apertures and through a subset of the plurality of second apertures. A gap is present between at least one of the plurality of first teeth and a side of a respective one of the plurality of first apertures when the latch plate is in the engaged position. The anti-chuck component is coupled to the latch plate. The latch plate includes one or more second teeth that engage at least one of the plurality of first apertures to close the gap.

Abstract: A track assembly includes a first track having a first inner surface, a first support coupled to the first inner surface, a second track having a second inner surface, and a second support coupled to the second inner surface. The second track is slidably coupled to the first track. The first support has a first free end that extends from the first inner surface at a downward sloping angle. The second support has a second free end that extends from the second inner surface at an upward sloping angle. The first support and the second support are positioned such that the second free end is disposed above the first free end.