Class / Patent application number | Description | Number of patent applications / Date published |
301500230 | With peripheral roller | 23 |
20090066150 | Cam Action Caster Assembly for Ride-On Devices - A caster assembly includes a wheel bracket, a wheel attached to the wheel bracket, a shaft about which the wheel bracket is free to rotate, and a cam assembly. The caster assembly is attached to the underside of a caster board, where the shaft is fixed perpendicular to the board, and the cam assembly comprises a cam track fixed to the board with the shaft at its center and a cam follower fixed to the wheel bracket. The cam track is geometrically formed to have a number of valleys and peaks along its circumference. As the wheel bracket rotates about the shaft, the cam follower engages the cam track and causes the board and the wheel assembly to move away and towards each other. The resulting forces generate or maintain a generally forward motion in the caster board, without the need for further efforts by a rider. The caster assembly further permits the rider to travel backwards as well as forwards. The cam track is easily changeable by the rider to accommodate various user preferences and skill levels. | 03-12-2009 |
20090160240 | ONE WAY WHEEL ASSEMBLY - A one way wheel assembly of the present invention includes a first wheel, a second wheel, and a telescoping device pivotally connected to the first wheel and the second wheel respectively. The telescoping device provides a tolerance that first wheel may move toward the second wheel and touch it. So that, when the first wheel is moved along a direction, away from the second wheel, the first wheel will draw the second wheel through the telescoping device. On the contrary, when the first wheel is moved along an opposite direction, toward the second wheel, the first wheel will touch the second wheel and cause a jam to stop both of the wheels. | 06-25-2009 |
20100026080 | SET OF WHEELS WITH A SYSTEM FOR ROTATION AND TRANSPOSITION OF OBSTACLES, FOR BASES OF TRAVEL BAGS, TRUNKS AND SIMILAR - A set of wheels with a system for rotation and transposition of obstacles, for bases of travel bags, trunks and similar, comprising a support whose nucleus has a central bore and from which terminals are projected, in the quantity of three or more, which, in their turn, also have bores on their ends where the wheels are attached; when the user pulls the baggage or the kind, the wheels of contact with the surface normally rotate on their shafts, by the terminals of their supports, on the sides of the base; when it finds an obstacle, with the stress offered, the supports begin to rotate on their shafts on the sides of the base, thus making the wheel or subsequent wheels of the wheels, rotate on the obstacle, and going over it easily and the user does not have to make bigger strength and can normally take the base with the bag or the kind. | 02-04-2010 |
20100096905 | OMNI-DIRECTIONAL DRIVE DEVICE AND OMNI-DIRECTIONAL VEHICLE USING THE SAME - The omni-directional drive device comprises a main wheel ( | 04-22-2010 |
20100156168 | WHEEL FOR OMNI-DIRECTIONAL VEHICLE - A wheel assembly kit for a Mecanum wheel is provided. The kit includes a convex hub having a central axis and a perimeter. The perimeter comprises a plurality of flat spoke faces extending therearound. A spoke is releasably couplable to each spoke face. The spoke is alignable on the spoke face in a first orientation for one of left-handed and right-handed drive. When the spoke is rotated ninety degrees about its respective spoke face, the spoke is alignable in a second orientation for the other of the left-handed and the right-handed drive. A method of assembling the wheel assembly is also provided. | 06-24-2010 |
20100270850 | OMNIDIRECTIONAL WHEEL AND METHOD FOR THE ASSEMBLY THEREOF - An omnidirectional wheel has a hub that is rotatable around a rotational axis, and two wheel discs connected to the hub and spaced coaxially on the hub. A number of roller bodies are located between the wheel discs, evenly distributed around a circumferential edge of the wheel. The respective roller axes of the roller bodies are aligned at a diagonal angle relative to the rotational axis, and are each supported in a freely rotating manner between the wheel discs at opposite ends thereof. Each roller body is mounted in a freely rotating manner in respective modules respectively attached to the wheel discs. | 10-28-2010 |
20110115279 | FRICTIONAL DRIVE DEVICE AND INVERTED PENDULUM TYPE VEHICLE USING THE SAME - In a frictional drive device comprising a pair of drive disks ( | 05-19-2011 |
20110233989 | WHEEL, AND FRICTION DRIVE DEVICE AND OMNI-DIRECTIONAL VEHICLE USING THE SAME - In a wheel for use in an omni-directional vehicle, gravel and other foreign matters are prevented from being trapped between free rollers forming the wheel, and traveling vibrations and noises are minimized at the same time. The wheel includes an annular member and a plurality of free rollers each rotatably supported by the annular member around a corresponding tangential line of the annular member, and a gap member is placed between each adjacent pair of the free rollers to fill a gap defined between the free rollers. | 09-29-2011 |
20110260523 | FRICTION DRIVE DEVICE AND OMNI-DIRECTIONAL VEHICLE USING THE SAME - In a friction drive device comprising first free rollers and second free rollers contacting each other at the outer circumferential surfaces thereof to frictionally transmit power from the second free rollers to the first free rollers, in order to minimize the slippage between the first and second free rollers, minimize the power loss and cause the first free rollers to move as designed, an outer peripheral part of each first free roller defining an outer circumferential surface thereof has a different stiffness from that of an outer peripheral part of each second free roller defining an outer circumferential surface thereof. | 10-27-2011 |
20110272998 | OMNI-DIRECTIONAL TRANSPORT DEVICE - An omni-directional transport device includes a main wheel, a plurality of auxiliary wheels, and a braking mechanism. The main wheel has a main wheel seat, a main wheel axle, and a plurality of auxiliary wheel seats. The main wheel axle connects and rotates the main wheel seat. The plurality of auxiliary wheel seats is arranged to a periphery of the main wheel seat. Each auxiliary wheel has at least one rolling wheel and an auxiliary wheel axle. The auxiliary wheel axle is rotatably arranged to the auxiliary wheel seat, and an angle is between an axis of the auxiliary wheel axle and an axis of the main wheel axle. The braking mechanism is arranged to the main wheel seat to control the rolling of the plurality of auxiliary wheels. By the assembly mentioned above, the omni-directional transport device ensures a safety by preventing an unpredictable and undesired motion. | 11-10-2011 |
20120019048 | WHEEL FRAME - A method of assembling a wheel rotatable about a main axis and having a plurality of peripheral rollers mounted on peripheral axles aligned tangentially about the wheel and radially spaced from the main axis, each peripheral axle joined to adjacent other peripheral axles to form a continuous ring comprising the peripheral axles, the method including the steps of: molding each peripheral axle in a die having a cylindrical cycle for forming the axle shaft of the peripheral axle without longitudinal separation tines, the peripheral axles each having a receiving head portion for receiving a free end of the axle shaft of an adjacent peripheral axle; mounting a roller on each axle shaft; joining the peripheral axles together to form a continuous ring of peripheral axles; and molding a wheel body including a support structure around the continuous ring. | 01-26-2012 |
20120032496 | WHEEL, AND FRICTION DRIVE DEVICE AND OMNI-DIRECTIONAL VEHICLE USING THE SAME - [Task] To allow a wheel that provides a performance required for use in an omni-directional vehicle to be manufactured in an efficient manner. | 02-09-2012 |
20120086262 | FRICTIONAL DRIVE DEVICE AND INVERTED PENDULUM TYPE VEHICLE USING THE SAME - In a frictional drive device comprising a pair of drive disks ( | 04-12-2012 |
20120181846 | OMNI-DIRECTIONAL WHEEL - An omni-directional wheel has a rim for mounting a tire, a hub for rotatably attaching the wheel to a vehicle, and a means for connecting the rim and the hub. The rim of the wheel has a part which is rotatably connected to the hub and which, when radially rotating around the hub, engages the surface of the tire mounted on the rim for rolling the tire on the rim. Thus, when the wheel is engaging the ground, the tire rolling on the rim causes a side movement of the wheel in a plan orthogonal to the normal plan of rotation of the wheel when attached to the vehicle. A solid-core tire for use with the omni-directional wheel has treads patterns or a helical coil shape for engaging the rotatable part of the rim. A method for manufacturing a solid-core tire is also provided. | 07-19-2012 |
20120256471 | Omni-Directional Wheel Assembly - The kit includes a hub having a central axis and a perimeter. The perimeter comprises a plurality of flat spoke faces extending therearound. A spoke assembly is releasably couplable to each spoke face. Each spoke assembly is aligned with an adjacent spoke assembly to form a spoke. A method of assembling the wheel assembly is also provided. | 10-11-2012 |
20130127233 | Obstacle Traversing Wheel Assembly - An obstacle traversing wheel assembly can include at least one primary wheel member mounted with a primary axis of rotation and capable of rolling engagement with a supporting surface, and at least one secondary wheel member mounted with a secondary axis of rotation. The secondary wheel member can have a plurality of surface engaging protrusions which enable the wheel assembly to traverse an obstacle by imparting climbing movement to the primary wheel member in response to engagement with the obstacle. The surface engaging protrusions can be defined by rolling wheel members. The obstacle traversing wheel assembly can be incorporated on a wide variety of wheel-bearing devices, such as wheelchairs, personal transportation devices, and intravenous fluid support racks. | 05-23-2013 |
20130257138 | MULTI-DIRECTIONAL DRIVING MECHANISM OF A SPHERIC WHEEL - A multi-directional driving mechanism of a spheric wheel is assembled at a preset position on the surface of an existing spheric wheel, thus driving multi-directional rotation of the spheric wheel. The multi-directional driving mechanism comprises at least two driving wheels assembled at opposite directions of the spheric wheel. An axle is set at the enter of said driving wheel for driving the rotation via a driving gear. One lateral side of the driving wheel is abutted tightly onto the surface of the spheric wheel for frictional driving. Rolling elements are pivoted at interval on the periphery of the driving wheel and the axial direction of said rolling elements runs perpendicular to the axial direction of axle on the driving wheel. The driving wheels assembled at opposite directions could be abutted normally onto the surface of the spheric wheel for driving or sliding without mutual interference. | 10-03-2013 |
20140232174 | MECANUM WHEEL AND MECANUM-WHEELED VEHICLE - A Mecanum wheel having a first wheel rim ( | 08-21-2014 |
20140375111 | OBSTACLE TRAVERSING WHEEL ASSEMBLY - An obstacle traversing wheel assembly can include at least one primary wheel member mounted with a primary axis of rotation and capable of rolling engagement with a supporting surface, and at least one secondary wheel member mounted with a secondary axis of rotation. The secondary wheel member can have a plurality of surface engaging protrusions which enable the wheel assembly to traverse an obstacle by imparting climbing movement to the primary wheel member in response to engagement with the obstacle. The surface engaging protrusions can be defined by rolling wheel members. The obstacle traversing wheel assembly can be incorporated on a wide variety of wheel-bearing devices, such as wheelchairs, personal transportation devices, and intravenous fluid support racks. | 12-25-2014 |
20150115694 | OMNI-DIRECTIONAL WHEEL AND OMNI-DIRECTIONAL VEHICLE INCLUDING THE SAME - The omni-directional wheel includes first support parts and second support parts which support large-diameter rollers and small-diameter rollers. Each of the first support parts is disposed at a position where the first support part is held between a pair of the large-diameter rollers, while each of the second support parts is disposed at a position where the second support part is held between a pair of the small-diameter rollers. The large-diameter rollers and the small-diameter rollers are disposed such that their outlines are arranged on a single circumference, with a part of the small diameter-side end face of the small-diameter rollers partially inserted in the recessed portions of the large-diameter rollers. | 04-30-2015 |
20150130260 | OMNI-DIRECTIONAL WHEEL AND OMNI-DIRECTIONAL VEHICLE INCLUDING THE SAME - Provided is an omni-directional wheel including a substantially cylindrical hub provided so as to be rotatable around an axle; a plurality of rollers which have axes extending in a direction intersecting a radial direction of the hub and of each of which an outline has a curvature equal to a curvature of a circle centered at the axle; a support part which allows the rollers to be mounted so as to be rotatable around the respective axes, which supports the rollers such that the outlines are arranged on a single circumference; and rubber tubes which are held between and in contact between the outer circumferential surface of a cylindrical part of the hub and the inner circumferential surface of the support part in the radial direction. | 05-14-2015 |
20160023511 | OMNIDIRECTIONAL WHEEL - An omnidirectional wheel including a rim with at least one plate member and a means of attaching the wheel to a vehicle; a plurality of rollers comprising at least two toroidal rows of rollers disposed around the rim for mounting a tire; and a means of actuating the tire around its axis, defined, for example, by the never-ending torus axial member of the tire, whereby, when the wheel is engaging the ground, the tire rolling on the rim causes a side movement of the wheel, parallel to the wheel axis, in a plan orthogonal to the normal plan of rotation of the wheel when attached to the vehicle. A tire having a never-ending torus axial member, a helical bearing member, and a resilient toroidal shape is also provided. | 01-28-2016 |
20160193871 | WHEEL FRAME | 07-07-2016 |