A construction machine is provided that has an operating platform, an access for entering the operating platform, a roof and an access control. The roof is disposed on a height-adjustable rack structure that can be actuated manually or by means of a drive in order to set the roof from an upper operating position to a lower transport position and vice versa. In this process, the access protection is moved from a storage position to a functional position in which the access to the operating platform is blocked by the access control.

A construction machine is provided that has an operating platform, an access for entering the operating platform, a roof and an access control. The roof is disposed on a height-adjustable rack structure that can be actuated manually or by means of a drive in order to set the roof from an upper operating position to a lower transport position and vice versa. In this process, the access protection is moved from a storage position to a functional position in which the access to the operating platform is blocked by the access control.

A multifunction securing mechanism for a compartment closable by a door and includes a key cylinder, a latching assembly which may be a two-point latching assembly movable between a latching and an unlatching position, a rotatable member configured for a lazy-cam function connecting the key cylinder and latching assembly, at least one catch located on a surface adjacent the outside of the door, and a bar pivotally mounted to the outside of the door and movable between a first closed position and a second opened position. A first release mechanism is located on an interior side of the door for changing a positon of the latching assembly, and a second release mechanism is located on the interior side of the door for changing a position of the bar, both for allowing a user to open a latched and secured door from the inside.

An opening and closing mechanism for a roll-up cargo door for a truck is intended to decrease injuries to the people who load and unload items from box trucks and semi-trailers. The mechanism allows the user to open and close the overhead roll-up door of these trucks while standing firmly and safely on the ground at the rear corner of the truck. The door opening and closing mechanism is in the form of a loop of material that is attached to a lower portion of the roll-up door and a guide disposed near the top of the door frame. The loop is disposed along one of the vertical frame members of the door so that it is out of the way of the cargo hold when the door is open.

An opening and closing mechanism for a roll-up cargo door for a truck is intended to decrease injuries to the people who load and unload items from box trucks and semi-trailers. The mechanism allows the user to open and close the overhead roll-up door of these trucks while standing firmly and safely on the ground at the rear corner of the truck. The door opening and closing mechanism is in the form of a loop of material that is attached to a lower portion of the roll-up door and a guide disposed near the top of the door frame. The loop is disposed along one of the vertical frame members of the door so that it is out of the way of the cargo hold when the door is open.

Door sealant systems, apparatus, and methods, including: a seal apparatus configured about a door assembly; an air source configured to supply air into the seal apparatus; a plurality of valves including at least a first valve and a second valve, wherein the first valve is coupled to the air source, the first valve configured to inject air into the seal apparatus at a rate slow enough to allow the door assembly to fully close before the seal apparatus expands to push against the door assembly, wherein the second valve is coupled to the seal apparatus, the second valve configured to release air from the seal apparatus at a rate quick enough to allow the door assembly to be opened without damaging the seal apparatus.

Methods of transporting a plurality of freight containers are disclosed, including stacking one or more containers on a transportation vehicle, where one or more of the stacked containers is a vertically collapsible container in a collapsed position, where at least one of the vertically collapsible containers includes: a frame assembly including: a plurality of rectangular frame members; a plurality of articulated vertical frame members disposed between the rectangular frame members; and where the articulated vertical frame members are positioned and arranged to retract to within the frame assembly; a lifting mechanism positioned and arranged to elevate the rectangular frame members from each other; and where the lifting mechanism is disposed between the uppermost rectangular frame member of the frame assembly and the lowermost rectangular frame member of the frame assembly.

Methods of transporting a plurality of freight containers are disclosed, including stacking one or more containers on a transportation vehicle, where one or more of the stacked containers is a vertically collapsible container in a collapsed position, where at least one of the vertically collapsible containers includes: a frame assembly including: a plurality of rectangular frame members; a plurality of articulated vertical frame members disposed between the rectangular frame members; and where the articulated vertical frame members are positioned and arranged to retract to within the frame assembly; a lifting mechanism positioned and arranged to elevate the rectangular frame members from each other; and where the lifting mechanism is disposed between the uppermost rectangular frame member of the frame assembly and the lowermost rectangular frame member of the frame assembly.

An opening and closing mechanism for a roll-up cargo door for a truck is intended to decrease injuries to the people who load and unload items from box trucks and semi-trailers. The mechanism allows the user to open and close the overhead roll-up door of these trucks while standing firmly and safely on the ground at the rear corner of the truck. The door opening and closing mechanism is in the form of a loop of material that is attached to a lower portion of the roll-up door and a guide disposed near the top of the door frame. The loop is disposed along one of the vertical frame members of the door so that it is out of the way of the cargo hold when the door is open.

An opening and closing mechanism for a roll-up cargo door for a truck is intended to decrease injuries to the people who load and unload items from box trucks and semi-trailers. The mechanism allows the user to open and close the overhead roll-up door of these trucks while standing firmly and safely on the ground at the rear corner of the truck. The door opening and closing mechanism is in the form of a loop of material that is attached to a lower portion of the roll-up door and a guide disposed near the top of the door frame. The loop is disposed along one of the vertical frame members of the door so that it is out of the way of the cargo hold when the door is open.