Abstract: A drop-out mounting structure of a bicycle frame to inhibit a drop-out member from being separated from the bicycle frame is disclosed. The drop-out mounting structure of the bicycle frame for mounting a drop-out member as a wheel mounting unit to a drop-out mounting unit of a bicycle frame through a bolt may include an assembly slot formed at the drop-out mounting unit to insert the drop-out member inside the drop-out mounting unit and a stopper unit formed at an upper end part of the drop-out member with a length that is longer than an opening end of the assembly slot.

Abstract: A wheel, by which a base is configured to be wheeled across a floor, includes a tread and a hub. The hub has an inner surface that surrounds an axis and defines a bore. The hub further has an outer surface surrounding the inner surface and a slot extending radially outward from the bore to the outer surface. A shaft is centered on the axis and coupled to the base. The shaft is configured to be received in the bore and has a groove. A clip is configured to be attached to the hub in an installed position in which the clip extends from within the groove outward through the slot to secure the hub to the shaft. The installed position is axially between the base and the tread.

Abstract: A hub has an inner surface defining a bore centered on an axis, an outer surface surrounding the inner surface, and two slots extending in radially opposite directions from the bore to the outer surface. A shaft is configured to be received in the bore and has a circumferentially extending groove. A bent wire spring clip is configured to engage and mechanically interlock the hub and the shaft. The clip has a C-shaped section, two diametrically opposed bowed sections extending from opposite ends of the C-shaped section, and a two straight end sections respectively extending from ends of the two bowed sections to two distal ends of the clip. The clip is configured to have an installed position in which the bowed sections of the clip extend circumferentially in the groove at opposite sides of the shaft, and the end sections and the C-shaped section extend radially outward through the slots.

Abstract: A wheel assembly includes a main body, two wheels, two positioning shafts, and two retaining rods. In practice, the retaining portion of each of the retaining rods is urged on the positioning plates of the respective positioning shaft to position the locking portion of each of the positioning plates on the inner side the respective pivot hole of the main body so as to lock each of the two positioning shafts on the main body, so that each of the two wheels is attached on the main body rigidly and stably, thereby preventing the two wheels from detaching from the main body during a long-term utilization.

Abstract: Improvements to personal vehicles including self-propelled and balancing personal vehicles. Ready detachability of a seat, footrest, seat back, control unit, wheels and caster assembly is provided using quick disconnect mechanisms.

Abstract: In the trucking industry, a wheel stud having a recess at either end to accommodate a sacrificial insert of metal higher in the electromotive series of metals than the metals of the wheel stud assembly, the lug and the components joined thereby and being of sufficient difference in color from the surrounding materials so as to be readily visible without disassembling the combination, and a method for its use.

Abstract: Improvements to personal vehicles including self-propelled and balancing personal vehicles. Ready detachability of a seat, footrest, seat back, control unit, wheels and caster assembly is provided using quick disconnect mechanisms.

Abstract: A heavy duty wheel-axle assembly for industrial trolley carts in which wheel assemblies are mounted at either end of an axle, an inner bearing race of each wheel positively non-rotationally secured to the axle by interengagement of a non-round shaped position of the axle fitting into a corresponding opening in the race. A hex shape on one end is used to fix one wheel assembly, held by a bolt threaded into a threaded axial bore in the one end of the axle. A pin is inserted into one of a series of axial hub in the hub outside face to engage one side of the bolt hex head. A tee head on the other end of the axle is fit into a recess in the outside face of the other but to establish a non-rotative connection.

Abstract: A fast wheel changeover system for a camera dolly includes a cap on the end of each wheel axle. The cap has an annular shoulder and a shaft section. A quick release clip has a spring with a bridge section which fits over the cap. A wheel can be quickly changed over by lifting the bridge section over the annular shoulder, by hand and without tools, and then sliding the clip off of the axle. Wedges provided with the dolly allow wheels to be easily lifted off of the ground, for wheel changeover.

Abstract: A self-cleaning flexible track for use with vehicles suitable for travel over rough terrain, the track being adapted to be entrained by a drive wheel disposed on the vehicle, the track having opposed first and second lateral sides, an inward surface and an outward surface, track having a plurality of spaced apart paddles projecting from the interior surface adjacent each of the first and second lateral sides, the paddles have a body portion and a pedestal wherein the body portion is much wider than the pedestal, wherein the body portion and the pedestal of each of the paddles are configured and disposed to form an outlet therebetween, the outlet allowing the interior volume of the track and the exterior of the track to be in constant communication with each other.

Abstract: A manually adjustable wheel for a vehicle e.g.

Abstract: A connection for quickly mounting and removing wheels from a trailer, without removing or replacing lug nuts. The wheel assembly includes a non-rotating shaft or axle which serves as its journal. This journal is inserted and received snugly within a sleeve rigidly secured to the frame of the trailer, and pin and other connecting elements are added to prevent relative rotation and axial movement between journal and sleeve. Various embodiments are disclosed, including a simple pin dropped into aligned transverse openings in the two members and interfitting members on journal and sleeve which halt inward movement of the journal and its rotation, such as an axial pin and hole, radial slot and key, and touching flat surfaces on the two members.

Abstract: A quick-release wheel retainer consisting of a hooked-shaped member having a generally planar shaped tab attached thereto and extending outwardly therefrom approximately perpendicular to the hook-shaped member. The member is pivotally connected to a vertical drop-out of a bicycle front fork and the pivot connection is positioned directly above the drop-out slot such that, once in a locked position about a bicycle axle, the weight of the axle against the member causes the retainer to remain in that locked position.

Abstract: This invention relates to a collapsible shopping cart and in particular to one comprising a basket having a base support which enables it to sustain heavy loads without deforming and wheel assemblies which is easy to fit on the bottom of the basket, whereby the cart can receive, store and transport heavy articles. Furthermore, the cart is provided with wheels which are easily assembled.

Abstract: In a seed meter in which a seed disk is rotatably mounted within a housing, a method and apparatus are provided for positioning the seed disk within the housing so that the peripheral portion of the seed disk is located a desired, relatively uniform distance from an adjacent peripheral portion of the housing. A shaft having a threaded outer portion is rotatably mounted within the housing and a hub having a threaded aperture therein is positioned on and turned relative to the threaded outer portion of the shaft to begin advancing the threaded aperture onto the shaft. The seed disk is then mounted on the hub, following which rotation of the hub relative to the shaft is continued in a direction to advance the hub along the shaft toward the housing until a gap of desired size exists between the peripheral portion of the seed disk and the peripheral portion of the housing.

Abstract: The present invention pertains to a foldable bicycle including a main frame comprised of a front frame portion and a rear frame portion, a handlebar structure, a removably, adjustable seat structure, and two removable wheels. The two wheels include a front wheel and a rear wheel both of which are removably mounted to the bicycle frame by quick-release lock mechanisms. Upon removing the bicycles adjustable seat structure and the front wheel and rear wheel, the main frame may be folded by rotating the front frame portion oppositely with respect to the rear frame portion. Upon such folding, the two frame portions form a triangularly shaped unit which lies in three parallel planes.