Abstract: A method and system provide the ability to design a (land) surface. A triangular surface mesh representative of an existing surface is obtained. The mesh includes triangles that are connected by vertices and edges. Design constraint sets are determined based design constraints. The design constraints include a maximum slope constraint for a first triangle of the two or more triangles in the triangular surface mesh. The maximum slope constraint is a maximum angle between a normal vector of the first triangle and a reference vector. Heights of the vertices of the first triangle are projected onto the design constraint sets such that the normal vector satisfies all of the design constraints. The projecting includes modifying the heights by a minimum Euclidian distance. A design of the surface represented by the triangular surface mesh is generated based on the projecting.

Abstract: Balance bike having a frame provided with a steering bush or holder for rotatably holding handlebars with a front wheel fork whereby one or several front wheels are connected to the front wheel fork and whereby the balance bike having two back wheels, characterised in that the frame of the balance bike having two frame parts which are directly or indirectly hinge-mounted at a distance (D) from one another to the steering bush or holder by hinges from where the frame parts extend up to a distance thereof and are each provided with a back wheel.

Abstract: A tricycle may be operable between a first mode of operation steerable by a tricycle rider, and a second mode of operation steerable by an individual pushing the tricycle. A rider handle, in the first mode, may be configured to be rotationally coupled with the stem in a manner permitting a tricycle rider to exert forces on the rider handle and thereby turn the fork, and the rider handle in the second mode, being configured to be rotationally uncoupled from the stem, preventing forces on the rider handle from turning the fork. At least one rotation restrictor may be included for preventing the frost wheel from turning to a position where the front wheel axis leads the fork axis, and for maintaining the front wheel axis in a position trailing the fork axis both when the tricycle is propelled by a tricycle rider in the first mode and when the tricycle is pushed from behind in the second mode.

Abstract: The present invention relates to a stand bracket 100 including a mounting portion 102 and a body portion 106. The mounting portion 102 is arranged so that the stand bracket 100 can be connected to a bicycle. The body portion 106 includes a connector for connecting with an item. The item and the stand bracket 100 when connected establish a stand for standing the bicycle in a generally upright position. In a preferred form, the connector is arranged to connect with a first end of a bicycle pump 150.

Abstract: The present invention relates to a folding bicycle assisted by an electric motor, comprising a frame with a down tube (4) with a back end with a seat tube (7) and a front end with a steering tube (10) housing a stem (9) connected in the upper zone to a handlebar (101) and in the lower zone to a front fork (11), a back fork (2) coupled to the back end of the down tube (4), a folding mechanism which allows folding the bicycle (1) about an articulating pin (12) to at least one folded position, and a locking mechanism for keeping the bicycle in said folded position.

Abstract: A tricycle may be operable between a first mode of operation steerable by a tricycle rider, and a second mode of operation steerable by an individual pushing the tricycle. A rider handle, in the first mode, may be configured to be rotationally coupled with the stem in a manner permitting a tricycle rider to exert forces on the rider handle and thereby turn the fork, and the rider handle in the second mode, being configured to be rotationally uncoupled from the stem, preventing forces on the rider handle from turning the fork. At least one rotation restrictor may be included for preventing the front wheel from turning to a position where the front wheel axis leads the fork axis, and for maintaining the front wheel axis in a position trailing the fork axis both when the tricycle is propelled by a tricycle rider in the first mode and when the tricycle is pushed from behind in the second mode.

Abstract: A suspension apparatus for a vehicle has a frame with a first portion and a second portion substantially perpendicular to the first portion. A swing arm is pivotably connected to the frame allowing movement of the swing arm. A striker contacts the first portion of the frame. A travel stop connects to the frame to limit the movement of the swing arm. A spindle and a hub connect to the spindle for connecting a wheel.

Abstract: A tricycle may be operable between a first mode of operation steerable by a tricycle rider, and a second mode of operation steerable by an individual pushing the tricycle. A rider handle, in the first mode, may be rotationally coupled with the stem in a manner permitting a tricycle rider to exert forces on the rider handle and thereby turn the fork, and the rider handle in the second mode, may be rotationally uncoupled from the stem, preventing forces on the rider handle from turning the fork. At least one rotation restrictor may be included for preventing the front wheel from turning to a position where the front wheel axis leads the stem axis, and for maintaining the front wheel axis in a position trailing the stem axis in the first mode and in the second mode.

Abstract: A cycle comprises a frame, a front fork and a rear fork. The cycle is convertible between a bicycle, a tricycle and a quad-cycle by replacement of wheels.

Abstract: The present invention relates to a vehicle that is converted from a stroller for carrying a passenger and cycle operated by a rider to a combined unit. More specifically, the invention relates to a stroller and a bicycle combined, physically and operationally, such that the operator of the cycle portion of the stroller-cycle can control operation of the stroller portion while the stroller-cycle is in motion.

Abstract: The present disclosure provides a kit and method for modifying a bicycle comprising attaching a platform to both sides of the bottom bracket crank spindle in place of a crank set and chain. The platforms include internal spindle slots adapted to crank spindle shape through which a screw or other fastener may be used to temporarily attach the platform to the bottom bracket crank spindle.

Abstract: An apparatus for generating a data stream having a series of segments using data organized in subsequent data frames, a data frame having more important and less important data. It comprises a packetiser for packetising data from a data frame into the series of segments having a first segment and a second segment, where the packetiser is operative to packetise the data of the frame so that a starting point of the more important data coincides with a starting point of the first segment and an information block adder for adding a first information block to the first segment.

Abstract: A method and apparatus suitable for stabilizing a two-wheeled motorcycle during operation. The apparatus is securable to a location near the front of the motorcycle engine. At least one arm assembly extends in a rearward direction relative to the motorcycle and outboard of the motorcycle's engine and operator's seat. A wheel assembly is mounted at an rearward end of the arm assembly and includes a wheel engageable with a surface supporting the motorcycle. A biasing assembly biases the arm assembly to rotate upward an adjustable limited distance at which the wheel is not engaged with the support surface. The biasing assembly applies a biasing resistance to downward rotation of the arm assembly over the limited distance for engaging the wheel with the support surface, yet allows the arm assembly to rotate upward farther than the limited distance to a raised position.

Abstract: A wheeled center stand for motorcycles. The center stand incorporates a spine rotatably attached to a frame, and at least one leg rigidly attached to the spine. The frame is attached to a motorcycle frame cross-member. At least one wheel is rotatably mounted to an extreme of a leg opposite the spine. The center stand may be extended and retracted conventionally, using a foot lever mounted to one of the legs. The wheels may be swiveling wheels or non-swiveling wheels. In the preferred embodiment, each non-swiveling wheel was mounted at a 20 degree offset relative to a stand centerline. When extended, a motorcycle to which the wheeled center stand is mounted may be rotated relative to a surface upon which it rests, such as a garage floor, with a minimum of effort. Nut plates are also taught which facilitate the mounting of the stand to a motorcycle frame cross-member.

Abstract: A tricycle includes a mainframe with front and rear sections. The front section may include a steering assembly with a rotatable wheel. The rear section may provide support for two spaced wheels and may be configured to provide a substantially unencumbered open area between the spaced wheels. The tricycle features a guide handle removeably connected to the tricycle and having a pair of footrests integrally connected to the guide handle adjacent a lower end.

Abstract: The invention is a training aid which can be converted from training wheels to a support bar which allows a person to learn the skills necessary to operate the bicycle. The invention allows a rider to be stabilized by the ground in a first position and to allow a non-rider to stabilize the bicycle in a second position.

Abstract: A conversion apparatus for attachment to a vehicle is provided. The conversion apparatus may include a frame having a mounting assembly adapted to releasably couple the conversion apparatus to the vehicle, and a first extension and a second extension, where each extension laterally extends from the mounting assembly on opposing sides of the vehicle. The frame further includes a first support member extending from the first extension to form a first pocket between the vehicle and the first support member, and a second support member extending from the second extension to form a second pocket between the vehicle and the second support member.

Abstract: An apparatus to be attached to the end of a motorcycle kickstand to prevent the end of the kickstand from sinking into the supporting surface. A supporting pad has a pair of attachment tabs extending therefrom, with which the supporting pad can be attached to the distal end of a kickstand. The pad and tabs preferably are integrally die-cut from a sheet of reinforced rubber, the tabs being flexibly bendable. The tabs are bent into close contact with the leg of the kickstand, with the supporting pad located beneath the distal end of the kickstand. A tightening band is wrapped and tightened around the kickstand leg and the bent tabs to secure the apparatus upon the end of the kickstand.

Abstract: This lightweight, compact, two-wheel conversion utility is specifically designed to serve as a dual-purpose device for use with a motorcycle. First, the structural design is such that a removable rail tongue hitch is fitted to the proposed invention allowing the conversion utility to be used as a carrier trailer for the motorcycle until arriving at the desired destination. There, the rail tongue hitch is detached from the frame, the motorcycle is backed between the two wheels of the utility, and is quickly and easily mounted to the rear axle and frame, thus converting the carrier trailer to a stabilizer for the motorcycle giving it a three wheel appearance. This makes it capable of increasing load capacity and less likely to overturn. The wheels are located on the outside of the conversion utility's frame and are laterally spaced apart on opposite sides of the rear wheel of the motorcycle.

Abstract: A portable bike stand that supports a bicycle in a vertical position and a method of using the bike stand to park the bicycle. The bike stand includes support elements that are coupled to the frame of the bicycle. The support elements provide support surfaces that cooperate with the bicycle to support the bicycle in the vertical position. In some embodiments, the bike stand also provides a storage compartment for carrying cargo.

Abstract: A bicycle accessory mounting apparatus for releasably securing a bicycle accessory quickly and effectively to a bicycle seat post. The bicycle accessory mounting apparatus comprises a block having two holes, two gaps, and two snap lock quick connect mechanisms at opposing ends.

Abstract: The present invention relates to a standing device for a stroller having an upper cross bar, a lower cross bar, and two rear wheels includes a pivotal rod having a first end and a second end respectively provided with a first C-shaped tube holder and a second C-shaped tube holder and a pivotal frame having a first end provided with a third C-shaped tube holder and a second end defined with a pivotal pin having a radial stop boss slanting to the first end of the frame. The second C-shaped tube holder of the pivotal rod is pivotally connected to the pivotal pin of the pivotal frame. The first C-shaped tube holder of the pivotal rod and the third C-shaped tube holder of the pivotal frame are respectively connected to the lower crossing bar and the upper cross bar such that the pivotal rod and the pivotal frame fold and support the stroller in cooperation with the rear wheels of the stroller when the stroller is in a collapsed and upright position.

Abstract: A child's ride-on toy has a rear mounted parent assist handle and is convertible to a child's rocker toy by rotating the handle about a rear axle to a position beneath the ride-on toy to serve as rocker rails. The handle can also be removed. The combination rocker and tricycle may thus be used either as a child's riding vehicle (with or without a parent-assist handle) or as a stationary rocker toy. As a child's tricycle, the handle is locked in an upright position extending rearwardly from the rear axle of the tricycle and positioned at a height convenient for a parent to control the motion of the tricycle. When the parent assist handle is no longer required it can be removed. To convert to a child's rocker the handle is rotated about the rear axle and positioned beneath the tricycle so that the handle portions support the tricycle.

Abstract: A bicycle trailer hitch assembly including first and second hitch members configured as mirror images of one another, the hitch members being adapted and arranged for attachment to opposites sides of the bicycle frame adjacent the rear wheel. Each member includes a body portion having a first projection configured for abutting relation with the chain stay of the bicycle and a second arcuately configured projection for tangentially abutting relation with the seat stay, each of the projections having a fastener arrangement coacting with the body portion and the adjacent stay of the bicycle frame for enabling securing the hitch member to the frame. Both projections extend from the same side of the body portion with the opposite side of the body portion including a slotted socket opening for receiving the ball end of a trailer tongue fastener. The tongue fastener is retained in position by means of a pin passing through the opposing walls of the slot.

Abstract: A combination motorcycle hammock and jack which, when used as a hammock, includes a cargo carrier rack support structure preferably attached to the cargo carrier rack of a motorcycle, an outwardly extending motorcycle hammock extension arm, a vertical support member and a lightweight flexible fabric material stretched from the outwardly extending motorcycle hammock extension arm to, for example, opposing handlebars of the motorcycle. Alternatively, the cargo carrier rack support structure could be placed underneath the motorcycle frame and the motorcycle hammock extension arm could be pivoted downwardly about a fulcrum to act as a lever and cause the motorcycle cargo carrier rack support structure to lift and support at least a portion of the motorcycle to permit, for example, repair and/or replacement of a flat tire.

Abstract: A training wheel assembly includes a pair of training wheels and a pair of mounting members for mounting the training wheels in outwardly spaced relation to opposite sides of a rear wheel of a bicycle. The training wheel assembly is adjustable for moving the training wheels thereof inwardly relative to the rear wheel of a bicycle in order to reduce the amount of support provided by the training wheels without increasing the tendency of the bicycle to yaw or wobble from side-to-side during use.

Abstract: It is common for bicycle riders to remove the bicycle front wheel and secure it with a lock and chain to the bicycle back wheel and frame when parking a bicycle. In such a case, the front fork of the bicycle then engages the ground. This often causes damage to the front fork or to the drop out slots in the front fork. To this end, a bicycle fork protector has been devised, the fork protector secured in the drop out slots of the blades of the front fork, the fork protector adapted to be interposed between the front fork and the ground. The fork protector consists of a generally elongated flat plate made of durable material with two pairs of opposite sides, one elongated side being a rounded side, the rounded side having a dense shock absorbing material strip adhesively attached thereto adapted to engage the ground. The opposite straight side is wedged into and frictionally held by the drop out slots of the bicycle front fork.

Abstract: A device for locking a bicycle (1) provided with a bicycle lock (18) has a stand (2) and a member (3) fixed thereon and adapted to cooperate with the bicycle lock (18) in such a manner that the member (3), together with the bicycle lock (18) in the locking position thereof, ensures locking of the bicycle (1) to the stand (2). The stand (2) has a part (5b) along which said member (3) is displaceable for vertical adjustment. Said member (3) is adapted to engage one seat stay (16) of the bicycle (1) adjacent the bicycle lock (18) in order to hold the bicycle and has a through opening (12) which is designed for receiving the locking element (17) of the bicycle lock (18).

Abstract: This invention relates to a stand for a motorcycle. The stand comprises an elongate transverse frame member, which has a non-circular cross-section, a first pair of similar elongate leg members, and a second pair of similar elongate leg members. Each leg member of both pairs has a non-circular transverse socket at one end. The shape of the socket corresponds to the cross-sectional shape of the transverse frame member. The leg members are slid on the frame member and secured with the members of the first pair in a first plane at an acute or right angle to the members of the second pair in a second plane. A transverse member is mounted on each leg of the first pair for engagement with the undercarriage of the motorcycle. Alternatively, a channel member, which has a hole cut through each of its sides, the holes in register with one another, is slipped about each front fork of the motorcycle between the bottom crown and fork slider.

Abstract: Mechanisms for mounting a main stand on a motorcycle are disclosed. The linkage between the front portion of the motorcycle power unit and the motorcycle body frame is used to mount the main stand. One mechanism employs a link connected to a bracket on the body frame and to bosses extending from the power unit. Another mechanism uses two links connected to each other and a bracket and bosses. A main stand is mounted to the rear end portion of the linkage mechanism.

Abstract: A bicycle suitable for use when performing free-style tricks in which the bicycle is turned almost completely sideways is provided. The handles and the pedals of the bicycle include a rotatable ball bearing which reduces abrasion and increases smoothness when one of the handles and/or pedals contacts the ground.

Abstract: A conversion kit adapted to be retro-fitted to conventional three wheeled vehicles for floating them over water. The flotation kit includes a front frame assembly having a pair of rigid, elongated front frame members semi-permanently coupled to the front fork of the three wheeler in axial alignment with one another. A pair of front flotation devices each comprise a suitable mounting strut which is adapted to be telescopingly coaxially coupled to the front frame members. A rear frame assembly comprises a first rigid elongated rear frame strut which may be variably positioned to the vehicle, and a second lower rigid elongated frame strut which includes a central rigid portion and a pair of outer lateral portions telescopingly coaxially fitted to it.

Abstract: A hydraulic righting and kickstand device includes a pivotal connection to a centrally located lower frame of the motorcycle, an upper kickstand member extending downwardly toward the ground, a fluid actuated cylinder structurally connected to the upper kickstand member, a piston actuated rod actuated in the cylinder extending downwardly from the lower end of the cylinder, a foot member structurally connected to the piston rod and extending toward the ground to the support the cycle with fluid pressure being supplied to the cylinder extending the piston to right the motorcycle.

Abstract: Structurally integrated equipment is selectively, individually or conjointly detachably attachable to a three-wheeled vehicle for preventing rearward tipover, carrying cargo, rendering the vehicle waterborne, enhancing travel over snow or providing power takeoff. Supports extending from the framework of the vehicle are adapted to receive and retain with quick disconnect fittings frame elements of the equipment. The frame elements may be adjustable to accommodate load variations and variances of the surface traversed.

Abstract: This is an apparatus for uprighting a motorized two-wheeled vehicle which is lying on the ground. The apparatus is designed to upright the motorized two-wheeled vehicle no matter which side it is lying on. The apparatus is attached to the motorized two-wheeled vehicle where the fixably mounted device of the apparatus contains two removable retainer pins and two hinges; a pair of side portions each selectively hingably connected to the fixably mounted device, and an expansible center portion containing a piston and cylinder which is connected by a hose to means for pressurizing the cylinder space above the piston. The means for pressuring the cylinder space are either hydraulic or compressed gas. In another embodiment the expansible center portion of the apparatus is replaced by a screw mechanism, each end of which is hingeably connected to the side portions of the apparatus.

Abstract: A device that allows support at the correct angles on a bicycle or motorcycle to enable the rider to perform a wheelie. Contact is on two points, the rear wheel and the wheelie support which offers stability.

Abstract: A motorcycle having a number of cooperating protective features to protect riders against injury in high speed crashes or other accidents. A motorcycle of the usual basic configuration, having a pair of wheels in tandem with a motor therebetween connected by a basic frame which supports at least one rider's seat assembly and a steering assembly for steering the front wheel is surrounded by a cage assembly of high strength, light-weight tubing fastened to the frame and forming part of the frame. A body covering covers the cage. At least one door is provided at the side of the rider. When fully open, the door extends outwardly in a manner such that the lower outer end of the door can engage the ground with the motorcycle tilted slightly in that direction to function as a sturdy, stable side stand.

Abstract: A kickstand for supporting a parked two-wheeled vehicle and a footrest for supporting the feet of the vehicle operator when the vehicle is in motion is provided by a single device comprising a lever pivoted about an axis parallel to the longitudinal axis of the vehicle on a horizontal beam rigidly affixed to the vehicle frame. The center of gravity of the lever portion is located relative to the pivot axis so that the lever portion is stable both when pivoted to contact the ground for vehicle support and when pivoted to a position parallel to the beam to act as a footrest.

Abstract: A cleaning tray for use in cleaning and lubricating conventional bicycle drive chains while mounted upon bicycles, said tray being formed to extend between and receive the bicycle rear wheel hub sprockets and the pedal crank sprockets and to fit between the bicycle rear wheel and the chain, with the tray having a wall forming a spray shield to protect the rear wheel during cleaning and lubrication of the chain. The tray includes a guide for positioning part of the chain lower reach into a reservoir portion for immersion in fluid contained therein or for receiving fluid drippings from the chain. Temporary fastening means mounts the tray upon the bicycle frame and a removable stand supports the bicycle in an upright position with its rear wheel elevated above the floor, so that hand rotation of the pedal crank causes the drive chain to move through the tray reservoir.