A closure system for a motor vehicle cargo bed includes a closure panel having a plurality of slats moveable between a deployed position and a retracted position, with each adjacent pair of the slats being pivotably connected to one another by a hinge unit for pivotal movement of the adjacent slats about a hinge axis. First and second guide track units are configured to be mounted to one side of the cargo bed to extend adjacent opposite side edge portions of the closure panel. A plurality of roller units, each having first and second rollers, are supported along the opposite side edge portions of the cover panel for rolling movement along the first and second guide track units, with each roller unit rolling about a roller axis that is coaxially aligned with one of the hinge axes.

This invention provides sliding door enclosure assemblies for a framework structure, which uniquely enables equal lateral displacement of sliding doors, with the minimal engagement of a single door alone. More specifically, the sliding door enclosure assemblies of this invention comprise paired rotatable sliding doors, paired rotatable leaders, paired rotating conveyors, which conveyors are advanced by the paired rotatable leaders, guides which further comprise attachment regions to attach the paired rotatable sliding doors to the paired rotating conveyors and at least one interlocking rotatable movement regulator set of two elements, which rotate in equal and opposing directions, so that paired rotatable leaders operationally connected thereby promote lateral displacement of operationally connected rotatable sliding doors about the framework structure.

A horizontal garage door assembly includes a plurality of panels, which are pivotally connected at adjacent side edges. A top rail receives the plurality of panels and includes a first straight portion, a curved portion, and a second straight portion. A motor is positioned at a first end of the first straight portion, a tensioning mechanism is disposed on a first panel, a gear mechanism is positioned at a second end of the first straight portion. A connecting band connects the motor, the gear mechanism, and the tensioning mechanism to form a loop along a length of the top rail. The motor drives the connecting band such that the plurality of panels moves between a closed position, in which the plurality of panels is substantially received in the first straight portion, and an open position, in which the plurality of panels is substantially received in the second straight portion.

A horizontal garage door assembly includes a plurality of panels, which are pivotally connected at adjacent side edges. A top rail receives the plurality of panels and includes a first straight portion, a curved portion, and a second straight portion. A motor is positioned at a first end of the first straight portion, a tensioning mechanism is disposed on a first panel, a gear mechanism is positioned at a second end of the first straight portion. A connecting band connects the motor, the gear mechanism, and the tensioning mechanism to form a loop along a length of the top rail. The motor drives the connecting band such that the plurality of panels moves between a closed position, in which the plurality of panels is substantially received in the first straight portion, and an open position, in which the plurality of panels is substantially received in the second straight portion.

Chain tensioner devices for use with movable partition systems include endplates configured to be mounted on opposing sides or ends of a movable partition. At least one of the endplates includes a bracket configured for attachment to an end of a chain. The bracket is movable relative to the endplate. The endplate having the bracket also includes an adjustment mechanism located on a common side of the endplate with the bracket, and is operably coupled with the bracket. The adjustment mechanism is configured for adjusting a distance separating the bracket from the endplate. Movable partition systems include such chain tensioner devices. Methods of adjusting a tension in a chain of a movable partition system involve the use of such a chain tensioner device. Methods of installing movable partition systems within structures include the installation of such chain tensioner devices.

Chain tensioner devices for use with movable partition systems include endplates configured to be mounted on opposing sides or ends of a movable partition. At least one of the endplates includes a bracket configured for attachment to an end of a chain. The bracket is movable relative to the endplate. The endplate having the bracket also includes an adjustment mechanism located on a common side of the endplate with the bracket, and is operably coupled with the bracket. The adjustment mechanism is configured for adjusting a distance separating the bracket from the endplate. Movable partition systems include such chain tensioner devices. Methods of adjusting a tension in a chain of a movable partition system involve the use of such a chain tensioner device. Methods of installing movable partition systems within structures include the installation of such chain tensioner devices.

Insulated doors with restorable breakaway sections are disclosed. An example door includes a first panel assembly including a leading panel and a trailing panel. The leading panel is to be in substantially coplanar alignment with the trailing panel when the first panel assembly is in a normal configuration. The leading panel is to be angularly displaced out of coplanar alignment with the trailing panel when the first panel assembly is in a dislodged configuration. The example door further includes a tension member to connect the leading panel to the trailing panel. The tension member is to resiliently urge the leading panel and the trailing panel toward each other in a horizontal direction. The tension member is to resiliently urge the first panel assembly toward the normal configuration when the first panel assembly is in the dislodged configuration.

Insulated doors with restorable breakaway sections are disclosed. An example door includes a first panel assembly including a leading panel and a trailing panel. The leading panel is to be in substantially coplanar alignment with the trailing panel when the first panel assembly is in a normal configuration. The leading panel is to be angularly displaced out of coplanar alignment with the trailing panel when the first panel assembly is in a dislodged configuration. The example door further includes a tension member to connect the leading panel to the trailing panel. The tension member is to resiliently urge the leading panel and the trailing panel toward each other in a horizontal direction. The tension member is to resiliently urge the first panel assembly toward the normal configuration when the first panel assembly is in the dislodged configuration.

A frame assembly with sliding panels is described. The frame assembly includes a frame having an upper section opposite of a lower section. The lower section of the frame defines a first channel and a second channel. A first sliding panel includes a first lower edge. A first panel support is removably engaged to the first lower edge. The first panel support includes a first holding member that engages to the first lower edge. The first panel support slides in the first channel. A second sliding panel includes a second lower edge. A second panel support is removably engaged to the second lower edge. The second panel support includes a second holding member that engages to the second lower edge. The second panel support slides in the second channel.

A frame assembly with sliding panels is described. The frame assembly includes a frame having an upper section opposite of a lower section. The lower section of the frame defines a first channel and a second channel. A first sliding panel includes a first lower edge. A first panel support is removably engaged to the first lower edge. The first panel support includes a first holding member that engages to the first lower edge. The first panel support slides in the first channel. A second sliding panel includes a second lower edge. A second panel support is removably engaged to the second lower edge. The second panel support includes a second holding member that engages to the second lower edge. The second panel support slides in the second channel.