The present teachings generally provide for an overrunable test vehicle for dynamic vehicle testing of advanced driver assistant systems along a driving plane. The overrunable test vehicle comprising a chassis with a first end and a second end and including a mounting area configured to receive a soft target, and defining an axis of rotation transverse to the driving plane between the first end and the second end, four drive mechanisms coupled with the chassis, each drive mechanism having an electric motor with a drive wheel, and a control system coupled with the electric motors, and configured to control speed and torque of each of the electric motors, forming a torque vector that rotates the overrunable test vehicle about the axis of rotation to a target rotation angle. The axis of rotation is a location between the two drive mechanisms that the chassis turns about when the torque vector is applied to the chassis of the overrunable test vehicle.

A caster wheel assembly for an agricultural implement system includes a frame configured to pivotally couple to a tool bar of the agricultural implement system via a mount, a sub-frame rotatably coupled to the frame, and at least one connecting linkage configured to control movement of the frame relative to the tool bar. The caster wheel assembly also includes a locking assembly, which includes a lock lever movably coupled to the frame, wherein the lock lever comprises a locking element and a release element, a locking structure fixedly coupled to the sub-frame, and a driving element fixedly coupled to the at least one connecting linkage. The locking element is configured to block rotation of the sub-frame relative to the frame while the locking element is engaged with the locking structure, and the driving element is configured to contact the release element as the at least one connecting linkage moves the frame downwardly relative to the tool bar to drive the locking element to disengage the locking structure.

A mobile imaging device includes a base having at least one caster, a first drive mechanism that moves the system in a transport mode and translates an imaging component relative to the base in a scan mode, and a second drive mechanism that extends caster relative to the base to raise the base off the ground in the transport mode, and retracts the caster relative to the base to lower the base to the ground in the scan mode. A caster system for a mobile apparatus includes a base containing a housing and a caster, attached to the base, the caster having a wheel defining a wheel axis and a swivel joint defining a swivel axis and a pivot point defining a pivot axis, wherein the caster pivots on the pivot axis as the caster is retracted into the housing and extended out of the housing.

A mobile imaging device includes a base having at least one caster, a first drive mechanism that moves the system in a transport mode and translates an imaging component relative to the base in a scan mode, and a second drive mechanism that extends caster relative to the base to raise the base off the ground in the transport mode, and retracts the caster relative to the base to lower the base to the ground in the scan mode. A caster system for a mobile apparatus includes a base containing a housing and a caster, attached to the base, the caster having a wheel defining a wheel axis and a swivel joint defining a swivel axis and a pivot point defining a pivot axis, wherein the caster pivots on the pivot axis as the caster is retracted into the housing and extended out of the housing.

Mobile folding restaurant booth style benches are provided, which may be arranged in opposed pairs to form restaurant style booths. An individual bench incorporates a mechanism for shifting the weight of the bench between a mobile base, which may be supported by swivel casters, and a stationary base, which may be supported by non-slip feet, actuated by pivoting a bench seat down from a folded storage position to an unfolded seating position. The weight shifting mechanism may include an engagement member, which is initially spaced apart from an actuator at a folded angle of the seat, and which contacts and begins transmitting force and movement to the actuator at a partially unfolded angle of the seat. Preferably, the bench further includes a biasing component that biases the stationary base upward relative to the mobile base, a locking mechanism that resists a force provided by the biasing component to retain the bench seat in the unfolded seating position, contoured shells or other covers for the seat and a seat back, and a back panel extending vertically above the seat back.

An apparatus includes a housing having first and second sides, a bottom surface, and a drawer disposed in the housing. Each of the first and second sides of the housing includes first and second wheels coupled to the housing, the first and second wheels having a first wheel position in which no portion of the first and second wheels is above the bottom surface of the housing and a second wheel position in which a portion of each of the first and second wheels is below the bottom surface of the housing. Each side also includes an arm coupled to the housing, the arm having a first arm position and a second arm position, wherein movement of the arm from the first arm position to the second arm position causes the first and second wheels to move from the first wheel position to the second wheel position.

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.

A suspension mechanism for installation on a rigid caster, one on each caster fork leg, includes a pivot arm and an abutment arm pivotally secured to the fork leg, with the abutment arm between the pivot arm and the fork leg. An elastically compressible spring is sandwiched between the pivot arm and the abutment arm. The wheel axle is coupled to and between the pivot arms. Impacts experienced by the wheel are cushioned by the spring as they are transferred to the abutment arm fork leg. The mechanism is installed by uncoupling the wheel axle from the fork legs, pivotably securing the pivot and abutment arms to the fork legs with the abutment arms extending between the pivot arms and the fork legs, sandwiching a spring between the pivot arms and the abutment arms; and, coupling the wheel axle to the pivot arms for rotatably securing the wheel thereto.

A wheel support assembly for a bottom drawer is disclosed. When the bottom drawer is open, the wheel support assembly may provide support in a deployed position. When the bottom drawer is closed, the wheel support assembly may be retracted in a cavity to be invisible to consumers.

A caster wheel arrangement for a powered wheelchair, the caster wheel arrangement comprising: a caster wheel module comprising: a wheel rotatably connected to a first linkage member, wherein the wheel is rotatably arranged about a first axis of rotation of the wheel; and a support element rotatably connected to the first linkage member through a joint configured to allow a rotation of the first linkage member relative to the support element around a second axis of rotation perpendicular to the first axis of rotation; a second linkage member connected to the support element at a third axis of rotation, wherein the third axis of rotation is essentially perpendicular to the second axis of rotation of the first linkage member, to allow rotation of the caster wheel module about the third axis of rotation, wherein the third axis of rotation passes adjacent to the second axis of rotation.