Abstract

A self-propelled aerial work platform apparatus includes a chassis and elevating work platform with operator controls thereon. The work platform includes a main deck, an extension deck and a storable work step at one end of the extension deck to allow a worker to access utilities through openings in drop ceilings. The step and attached legs are moveable together from a horizontal work position of the step to a vertically extending storage position with step and legs alongside the step close to guardrails at the end of the extension deck.

IPC Classes  ?

• B66F 11/04 - Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations

Abstract

A vehicle steering system for a compact mobile elevating work platform ("MEWP") or other vehicle and a method for dynamically determining independent wheel steering angles such that a predetermined steering geometry between steerable wheels of the vehicle are described. The steering system determines coordination of the independent wheels based on angle differences of the steerable wheels. The independent master and follower wheels of the present system are not mechanically linked, and the absence of mechanical linkages between the independent steerable wheels allows for efficiency of spatial efficiency and steering geometry accuracy. The independent operation facilitates accommodation of the steering actuators into confined lateral compartments, which itself enables the machine lifting mechanism to occupy a space hitherto used for a mechanical steering connection between the wheel assemblies.

IPC Classes  ?

• B66F 11/04 - Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
• B66F 9/075 - Constructional features or details
• B66F 9/20 - Means for actuating or controlling masts, platforms, or forks
• B66F 9/24 - Electrical devices or systems
• B66F 9/12 - PlatformsForksOther load-supporting or load-gripping members

Abstract

A vehicle steering system for a compact mobile elevating work platform (“MEWP”) or other vehicle and a method for dynamically determining independent wheel steering angles such that a predetermined steering geometry between steerable wheels of the vehicle are described. The steering system determines coordination of the independent wheels based on angle differences of the steerable wheels. The independent master and follower wheels of the present system are not mechanically linked, and the absence of mechanical linkages between the independent steerable wheels allows for efficiency of spatial efficiency and steering geometry accuracy. The independent operation facilitates accommodation of the steering actuators into confined lateral compartments, which itself enables the machine lifting mechanism to occupy a space hitherto used for a mechanical steering connection between the wheel assemblies.

IPC Classes  ?

• B62D 5/04 - Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
• B62D 17/00 - Means on vehicle for adjusting camber, castor, or toe-in
• B62D 15/02 - Steering position indicators
• B62D 21/02 - Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
• B66F 11/04 - Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations

Goods & Services

Mobile elevating work platforms.

Abstract

A self-propelled aerial work platform apparatus includes a chassis and elevating work platform with operator controls thereon. The work platform includes a main deck, an extension deck and a storable work step at one end of the extension deck to allow a worker to access utilities through openings in drop ceilings. The step and attached legs are moveable together from a horizontal work position of the step to a vertically extending storage position with step and legs alongside the step close to guardrails at the end of the extension deck.

IPC Classes  ?

• B66F 11/04 - Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
• B66F 13/00 - Common constructional features or accessories
• B66F 17/00 - Safety devices, e.g. for limiting or indicating lifting force