370results about "Rigid suspensions" patented technology

A motorized balance board includes a gyrosensor. An arithmetic operation unit calculates a tilt angle change value based on a signal output from the gyrosensor. When the control mode is a standby mode, a control mode switch element switches the control mode to a riding mode when the absolute value of the tilt angle change value exceeds a riding angular velocity threshold. When the control mode is the riding mode, the control mode switch element switches the control mode to the standby mode when the absolute value of the tilt angle change value exceeds a descending angular velocity threshold.

A shackle assembly is shown to include a shackle bracket, wear pads, a shackle stop, shackle plates and elastomer bushings. The shackle bracket includes legs forming portions thereof, which serve as contact surfaces for the wear pads and the shackle plates. By providing conical and lateral stiffness, the shackle bracket legs allow for the use of a more versatile elastomer bushing. The elastomer bushing preferably includes voids vertically separated with respect to each other and the elastomer layer preferably is in the form of a bowtie-shaped configuration, which enhances vertical, conical and torsional performance. A first redundancy feature is in the form of a shackle stop secured between the shackle plates. The shackle stop provides longitudinal control of the axle in the event the opposite limb of the leaf spring is broken, the vehicle is generally traveling in a given direction and the vehicle is subject to deceleration. A second redundancy feature is in the form of fingers forming portions of the shackle plates, which provides longitudinal control of the axle under the same conditions, but when the vehicle is generally traveling in an opposite direction. The redundancy features are activated under other conditions as well.

A suspension system for a tilting vehicular chassis based on more than three wheels separates a tilting component of the chassis from a non-tilting component. The non-tilting component provides a means for powering the vehicle with automotive-type engine and drive train options, while the tilting component provides the turning stability necessary for a narrower wheel base. The narrower wheel base benefits fuel economy. The multiplicity of wheels, and the breadth of platform thus enabled, permits shelter and comfort features for the occupant not otherwise available on a typical two-wheel chassis.

A mid-wheel drive power wheelchair for use by handicapped and disabled persons is provided having a frame, a seat supported by the frame, a pair of drive wheels supported on the frame under the seat, drive means for causing rotation of the drive wheels, power means for supplying power to the drive means, a rearward idler wheel, a forward anti-tip device and a resilient suspension supporting the forward anti-tip device, the suspension being attached to the drive means rearward of the front portion of the frame.

A suspension for a vehicle includes an upper A-arm and a lower A-arm. A leg with an axis is rotatably connected to both the upper A-arm and the lower A-arm. A mechanical link is rotatably connected to the leg so that movement of the mechanical link applies rotational force to the leg to cause the leg to rotate about the axis.

An off-road vehicle has a frame and at least one wheel. A suspension arm suspends the wheel from the frame. The frame includes at least one horizontal member that extends generally horizontally fore to aft. A set of retainers are attached to the horizontal member. The retainers are spaced apart from each other fore to aft. The retainers swingably retain the suspension arm therebetween.

A method for detecting a missing or improperly installed fuel cap on a vehicle includes a first leak test that detects a leak in an evaporative emissions system of a vehicle. A refueling test detects a refueling of the vehicle when the first leak test detects the leak. A fuel cap indicator in the vehicle is activated when the first leak test detects the leak and the refueling test detects the refueling. The fuel cap indicator is deactivated after a predetermined time period. The fuel cap indicator remains deactivated when a predetermined number of leak tests consecutively detect the leak. The fuel cap indicator is deactivated when an occupant of the vehicle indicates that a fuel cap of the vehicle is properly installed. The occupant activates an actuator on an instrument panel of the vehicle to indicate the fuel cap is properly installed.

A suspension system for a vehicle (50c) having a body (52c) and a plurality of wheel support assemblies (56c, 58c) includes a tie structure (60c) interposed between the body and the wheel support assemblies. A first interconnection system (68c) interconnects the tie structure to the wheel support assemblies, and the second interconnection system (302) interconnects the tie structure and the body. The second interconnection system includes a plurality of link structures (304, 320) pivotally connected at one end to the tie structure, and pivotally connected at the opposite end to the body. Such link structures are oriented relative to the tie structure to extend towards a common point along a longitudinal axis (33B) of the tie structure.

An in-the-wheel suspension system including a drive mechanism for coupling the rotational motion of a wheel rim to the drive shaft of an electric motor and for supporting the wheel rim with respect to the vehicle chassis using one or more springs and dampers. In a hubless version, a spring member supports extend between a frame member attached to the chassis and a bearing member that engages with the rim. In a version used with a wheel hub, the hub is supported by an axle and the spring member supports the axle in movable relation to the frame member. A pivoting support arm that is attached to the axel and pivots about a pivot point attached to the frame member at a location spaced from the wheel axis may be used to support the hub. A Peaucellier linkage may be used to support the axle for movement along a straight line vertical path, the linkage being attached to the frame member at two fixed pivot points. The wheel suspension units perform all the traditional drivetrain functions independently and can be attached to the chassis in a manner that allows for easy removal.

A suspension arm comprising a rising / descending device further consists of an inner sleeve; a retractable shaft and an elastic body inside, an outer sleeve connect to the inner sleeve, a clip ring on the top open of the outer sleeve. The outer sleeve can revolve on the inner sleeve, when the user presses the clip ring to press or release the retractable shaft and make the retractable shaft rise or descend on top of the outer sleeve; a connecting axis is in torsion structure with a pillar shape connecting base and a central axis slot, an clip cover with two slices beside a compression ring stretching from top and bottom, all covered by the connecting base, a supporting axis of the retractable shaft passes the wedge holes of two slices, an axis slot in between and combines the supporting axis with a connecting device to wrap and compress the connecting base and let the clip cover revolvable; a connecting mechanism connects to the clip cover, the connecting mechanism connects the article to rise, descend; revolve and adjust in all directions with the rising / descending device.

A hollow vehicle suspension beam has opposed side walls formed with recesses in which an axle wrap is located and secured by welded jointing. The welded jointing is located internally and externally of the opposed side walls to provide a strong joint between the beam and the axle wrap. The beam includes at least one component of a generally U-shaped section having opposed limbs that provide at least part of the opposed side walls of the beam. The mouth of the component provides an access opening into the interior of the beam for the internal welded jointing to be made at the axle wrap. In one example, the beam includes two U-shaped components disposed with their mouths opening in opposite directions to provide access to the interior of the beam for the internal welded jointing to be made at the axle wrap. The mouths are then closed by closure components. The opposed side walls formed in combination by the opposed limbs of the U-shaped component and the space between the plate components are closed off by closure components after the internal welded joint has been made.

A non-torque reactive air suspension exhibiting excellent roll stability characteristics is shown to include frame hangers mounted to frame rails extending longitudinally on opposite sides of a vehicle. Longitudinally extending beams are connected to the frame hangers at one end and extend parallel to the frame rails. At their other ends, the beams are joined by a crossbrace extending laterally across the vehicle centerline. In a central portion thereof, the beams have an axle pivot bore to which an axle clamp assembly is connected, the axle clamp assembly clamping a drive axle housing for the vehicle. The axle pivot bore is generally aligned with the drive axle. A control rod assembly is connected to suspension or frame components. Together with the beams, the control rod assembly forms a parallelogram configuration wherein the beams form the lower linkages of that configuration and the control rods included within the control rod assembly form the upper linkages of that configuration.