A manually adjustable movable base for an outdoor umbrella includes a base assembly, a screw rod rotatably fitted at the center of the foundation base assembly, a cranking rod which is in transmission fit with the screw rod and is used for driving the screw rod to rotate, a plurality of pull rods rotatably fitted with the base assembly, and a plurality of bottom wheels which are arranged on the base assembly and are correspondingly fitted with the pull rods. The lower end of the screw rod is in threaded connection with a lifting block, and the lifting block is fitted with and connected to the pull rods.

A patient transport apparatus transports a patient over a floor surface. The patient transport apparatus comprises a support structure and support wheels coupled to the support structure. An auxiliary wheel is coupled to the support frame to influence motion of the patient transport apparatus over a floor surface. The auxiliary wheel is movable to a deployed position with the auxiliary wheel engaging the floor surface and a stowed position with the auxiliary wheel spaced a distance from the floor surface. An actuator assembly including a lift actuator a biasing device, and a biasing load adjustment assembly. The lift actuator is operable to move the auxiliary wheel to the deployed position and to the stowed position. The biasing device configured to bias the auxiliary wheel towards the deployed position. The biasing load adjustment assembly configured to adjust a biasing force being applied by the biasing device to the auxiliary wheel.

A mechanism for deploying and retracting an adjustable handling wheel from under different types of equipment supported on the floor, or different types of furniture, such as chairs, medical chairs, nursery chairs, examination chairs, bedside tables, beds without chassis, cabinets and others. The mechanism enables very easy handling and movement of the equipment or furniture from one place to another place.

A removable transport caster assembly secured to side to side beams or front to back beams in a data center cabinet in a data center. The removable transport caster assembly is temporarily installed on the cabinet to enable the cabinet to be relocated to another location in the data center. The removable transport caster assembly includes a transport caster and a transport caster bracket secured to the transport caster. The transport caster has a mounting plate, a mounting bracket extending from the mounting plate, a lifting plate pivotally connected to the mounting plate, a lifting lever pivotally connected to the mounting bracket and a wheel assembly. The transport caster bracket secures the transport caster to the cabinet when relocation of the cabinet is desired.

A driving robot device is provided. The driving robot device may include a plurality of suspensions configured to absorb a shock applied by a driving surface on which the driving robot device drives; a first driving part that includes a motor and is configured to adjust a strength of the plurality of suspensions; and at least one processor configured to control the first driving part to adjust the strength of the plurality of suspensions based on driving surface information with respect to a state of driving surface, and based on food information with respect to a state of food carried by the driving robot device.

A patient transport apparatus transports a patient over a floor surface. The patient transport apparatus comprises a support structure and support wheels coupled to the support structure. An auxiliary wheel is coupled to the support frame to influence motion of the patient transport apparatus over a floor surface. The auxiliary wheel is movable to a deployed position with the auxiliary wheel engaging the floor surface and a stowed position with the auxiliary wheel spaced a distance from the floor surface. An actuator assembly including a lift actuator a biasing device, and a biasing load adjustment assembly. The lift actuator is operable to move the auxiliary wheel to the deployed position and to the stowed position. The biasing device configured to bias the auxiliary wheel towards the deployed position. The biasing load adjustment assembly configured to adjust a biasing force being applied by the biasing device to the auxiliary wheel.

Provided is a suspension device including a drive wheel, a first driven wheel that is disposed on one side in a front-rear direction with respect to the drive wheel, a second driven wheel that is disposed on the other side in the front-rear direction with respect to the drive wheel, a bogie link member that supports the drive wheel and the first driven wheel and is oscillatable around a first oscillation axis, and a rocker link member that supports the second driven wheel and the bogie link member and is oscillatable around a second oscillation axis. When viewed from a left-right direction, the first oscillation axis is not on the same vertical line as a rotation axis of the drive wheel and is located above the rotation axis in a vertical direction and located inside a contour of the drive wheel.

A retractable wheel assembly may include a fork that may be pivotally coupled to an object and a wheel that may be rotatably mounted on the fork. The retractable wheel assembly may further include a hollow housing that may be made up of an elongated housing portion pivotally coupled to the fork from a first end of the elongated housing portion and a curved housing portion integrally formed with an opposing second end of the elongated housing portion. The retractable wheel assembly may further include a weight disposed and moveable within the housing.

A stand assembly and method of converting a stand assembly from a moveable configuration to a stationary configuration is provided. The stand assembly includes a plurality of wheel assemblies slidably engaged with a plurality of respective trivets, each wheel assembly being moveable between a stowed configuration and a deployed configuration, thereby moving each trivet between a deployed configuration and a stowed configuration, respectively. When in their respective deployed configurations, a distal end of each trivet is engaged with the floor, thereby causing the stand assembly to be in the stationary configuration. When in their respective stowed configurations, the distal end of each trivet is positioned between two wheels of the wheel assembly such that the wheel assembly prevents the trivet from engaging with objects on the floor, thereby minimizing adjustments required to obtain desired ground clearance.

Disclosed is a cyclic mechanism for engaging or disengaging a switch with the stage of the cycle being determined by a height to which a first object is lifted relative to a second object. The mechanism has few moving parts, is inexpensive to manufacture, is reliable, can be incorporated into a wide range of devices or structures, and operates as an incident to raising or lowering a first object relative to a second.