Abstract: A fleet of lift trucks includes a lift truck for walk-behind operation without a stand-on platform and a lift truck for stand-on operation with a stand-on platform. Each lift truck of the fleet of lift trucks has a vehicle frame, to which a traction unit, a lifting device, and, optionally, a stand-on platform can be fastened. At least one lift truck of the fleet of lift trucks without a stand-on platform and at least one lift truck of the fleet of lift trucks with a stand-on platform (6, 8) have the identical vehicle frame. Each vehicle frame also has fastening elements for the optional fastening of a housing wall (5), a folding stand-on platform (6), and/or a fixed stand-on platform (8).

Abstract: A fleet of lift trucks includes a lift truck for walk-behind operation without a stand-on platform and a lift truck for stand-on operation with a stand-on platform. Each lift truck of the fleet of lift trucks has a vehicle frame, to which a traction unit, a lifting device, and, optionally, a stand-on platform can be fastened. At least one lift truck of the fleet of lift trucks without a stand-on platform and at least one lift truck of the fleet of lift trucks with a stand-on platform (6, 8) have the identical vehicle frame. Each vehicle frame also has fastening elements for the optional fastening of a housing wall (5), a folding stand-on platform (6), and/or a fixed stand-on platform (8).

Abstract: A closure device consisting of a screen for a refrigerator case such as an open-top chest or a display case. In its closed position, the device performs the function of a heat-insulating barrier against reheating by convection. In its open position, the device performs the function of a shield against reheating by radiation. The screen structure can be inflated with air or with a fluid having lower density than air. The device can thus be displaced with great ease and can be maintained in its open shielding position by a maximum number of two lightweight supports.