2293results about "Steps arrangement" patented technology

A retractable running board assembly is mounted to the frame of a vehicle. The running board is selectively extendable between a retracted position, which is close to the vehicle's frame, and a lower, laterally-outward extended position that facilitates easy entrance into and exit from the vehicle. A plurality of longitudinally spaced, selectively-actuated links connect the running board to the frame. A selectively-operable driving mechanism concertedly actuates each of the links to extend and retract the running board. When the driving mechanism is not operated, each link resists actuation and holds the running board in a fixed position relative to the frame.

A retractable step assist for a vehicle comprises a step, an actuator, an optical fiber sensor, and a safety. The step is movable between a retracted position and a deployed position that is downward and outboard from the retracted position. The actuator is mechanically connected to the step to position the step. The optical fiber sensor has an output that varies when pressure is applied to the optical fiber sensor. The safety is triggered by this output from the optical fiber sensor. The safety is configured to terminate retraction of the step when the optical fiber sensor senses pressure from an object pinched by the step deck.

The invention relates to a hidden turnover ladder. The hidden turnover ladder is characterized by comprising an upper ladder assembly and a lower ladder assembly, wherein the upper ladder assembly comprises a baseplate, and a pair of mounting vertical plates symmetrically arranged on the baseplate; multiple stages of upper antiskid pedals are arranged between the mounting vertical plate; first pin shaft holes are formed in the lower front parts of the mounting vertical plates; the lower ladder assembly comprises a pair of step type mounting side plates; connecting lug plates are arranged at the upper ends of the mounting side plates, and are rotationally connected with the first pin shaft holes through first pin shafts; and multiple stages of lower antiskid pedals are arranged between the mounting side plates. The hidden turnover ladder has the beneficial effects of less occupied space, convenience for use and folding capacity in no use. The invention further discloses oil field operation equipment adopting the turnover ladder; and the oil field operation equipment has the following beneficial effects: second pin shafts are arranged for connecting a car body with the hidden turnover ladder, so that the turnover ladder can be accommodated in a turnover ladder accommodating cavity after two times of overturning, and the effect of convenience for use and transportation is achieved.

A powered running board assembly has a deck and at least two hinges extending from the deck for mounting longitudinally the deck to an underside of a vehicle. Each hinge has a mounting bracket configured to mount to the underside of the vehicle. A pair of links pivotally extending between the deck and mounting bracket. The deck is movable between a retracted position and an extended position. A linear drive assembly operably engages at least one of the hinges to drive the deck between the retracted and extended positions. The linear drive assembly operably extends between opposite pivots of the pair of links. As the drive extends and retracts, the pair of links is expanded and contracted effecting the desired movement of the running board between inboard and outboard positions.

A retractable running board assembly is mounted to the frame of a vehicle. The running board is selectively extendable between a retracted position, which is close to the vehicle's frame, a lower, laterally-outward extended position that facilitates easy entrance into and exit from the vehicle and a roof-access position, higher and outward from the entrance position. A selectively-operable driving mechanism actuates a link to extend and retract the running board. When the driving mechanism is not operated, each link resists actuation and holds the running board in a fixed position relative to the frame.

A running board is provided by the invention. The running board includes a deck, a stepping surface material, and a step cover. The stepping surface material includes raised portions that prevent foot slippage. The cover portion partially overlaps the stepping material to secure it in a place on the deck. A motor vehicle with a running board and methods for installing the running board are also provided.

A retractable step for use with a vehicle comprises a stepping member having a stepping deck, a first arm, a second arm, a motor and a stop. The first arm has a first end pivotally attached to the vehicle, and a second end pivotally attached to the stepping member. The second arm also has a first end pivotally attached to the vehicle, and a second end pivotally attached to the stepping member. The motor is drivingly connected to the first arm such that a rotation of the motor causes rotation of the first arm about its first end and moves the stepping member from a retracted position to an extended position, or vice versa. The stop is located within the range of motion of the second arm such that the second arm bears against the stop when the stepping member is in the extended position. The first and second arms are situated such that the first arm is loaded in compression and the second arm is loaded in tension when the stepping member is in the extended position and a load is placed upon it. In another embodiment, a retractable vehicle step assist comprises a rigid frame, a forward planar linkage pivotably connected to the frame along a forward upper connection width, and a rearward planar linkage pivotably connected to the frame along a rearward upper connection width. The retractable vehicle step further comprises a rigid step member having a stepping deck. The step member is pivotably connected to the forward planar linkage along a forward lower connection width, and is pivotably connected to the rearward planar linkage along a rearward lower connection width and on a side of the forward planar linkage opposite the stepping deck. The stepping deck is substantially wider than any of the forward upper connection width, the rearward upper connection width, the forward lower connection width, and the rearward lower connection width.

A bulk material transport vehicle access structure includes an elongated service platform for workers which is pivotally supported at its opposite ends to cantilever arms on parallel horizontal axes to avoid binding between the roller carriages of the cantilever arms and a pair of support pillars. The floor of the platform includes a walkway and a doorway covered by a plurality of side by side doors which may be selectively opened. Electric controls are provided to automatically stop operation of the power means used to control the elevation of the cantilever arms should the service platform become tilted a predetermined extent. Electric controls are also provided to stop lowering of the service platform when it reaches the top of a bulk material transport vehicle.