Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
  • B60B27/00—Hubs
  • B60B27/02—Hubs adapted to be rotatably arranged on axle
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
  • B60B1/00—Spoked wheels; Spokes thereof
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
  • B60B1/00—Spoked wheels; Spokes thereof
  • B60B1/003—Spoked wheels; Spokes thereof specially adapted for bicycles
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • B62D—MOTOR VEHICLES; TRAILERS
  • B62D9/00—Steering deflectable wheels not otherwise provided for
  • B62D9/04—Steering deflectable wheels not otherwise provided for combined with means for inwardly inclining wheels on bends
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
  • B62K5/00—Cycles with handlebars, equipped with three or more main road wheels
  • B62K5/02—Tricycles
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
  • B62K5/00—Cycles with handlebars, equipped with three or more main road wheels
  • B62K5/02—Tricycles
  • B62K5/027—Motorcycles with three wheels

Definitions

• the present invention relates to a wheel adopted in a tricycle, such as a bicycle or a motorcycle, etc. and more specifically, to a tricycle including a tiltable wheel capable of smoothly turning the tricycle to the left or to the right.
• a tricycle such as a bicycle or a motorcycle
• a tricycle is configured to have three wheels of one front wheel and two rear wheels. This is configured to increase stability by having a 3-point supporting structure through a support of three wheels, as compared to a two-point supporting structure configured of one front wheel and one rear wheel, respectively, in a two-wheeled vehicle.
• the tricycle is traveled by transferring rotation force generated from a manpower or a motor, etc.
• the front wheel of the tricycle is configured to be mutually connected to a support and a steering apparatus so that it is turned by a handling and the tricycle has a structure that if the front wheel moves while being turned by a predetermined angle, the rear wheel moves accordingly to be traveled in a turning direction.
• the general tricycle as described above has a structure that if the front wheel moves while being turned, the rear wheel moves accordingly to be rotated using a one- side rear wheel as an eccentric shaft. At this time, it has a structure that the inside rear wheel being the eccentric shaft has a slightly narrow turning range and the outside rear wheel has a larger turning range. As compared to the two-wheeled vehicle, it requires large driving power upon turning, and in particular, it has a problem in that children not capable of sufficiently transferring the driving power cannot easily perform the turning operation due to the wheel structure of the tricycle. Also, since the general tricycle is turned while maintaining an upright state to a ground, it does not overcome the centrifugal force generated by a driver or its weight so that it can be overturned.
• the present invention proposes to solve the problems.
• An object of the present invention provides a tricycle wheel configured to be able to naturally absorb the centrifugal force by tilting a rear wheel according to a turn of a front wheel .
• a tiltable tricycle wheel of the present invention comprises: a rotating shaft 100 transferred and rotated with power by a rotation of a pedal or a motor; a fixing member 200 fixed to the rotating shaft 100 of one side or both sides of a pair of wheels to integrally rotate with the rotating shaft; and a wheel part 300 coupled to an outer circumference of the rotating shaft 100 and mounted to be spaced by a predetermined interval from the fixed member 200 and engaged with the fixed member 200 so that the wheel part can be transferred with the rotation force of the rotating shaft 100 and can be tilted upon turning.
• the wheel part 300 includes: a movable member 310 in a cylindrical shape spaced by a predetermined interval from the fixed member 200 and engaged with the fixed member 200; a projecting part 330 provided in an inner face of the movable member 310 to be adjacent to the rotating shaft 100 and projected to be titled by a predetermined angle in both directions; and a wheel 340 radially extended to the outer circumference of the movable member 310.
• the outer circumference of the fixing member 200 is provided with a fixing gear tooth part 220 projected in a radial direction or a vertical direction and one end of the movable member 310 is provided with a movable gear tooth part 311 engaged with the fixing gear tooth part 220.
• a joining face of the fixing gear tooth part 220 and the movable gear tooth part 311 is inserted with a packing 230 made of any one material selected from rubber, leather, and plastic.
• the outer circumference of the rotating shaft 100 is provided with a pair of guides 110 restricting a tilt of the projecting part 330 and a separation preventing groove 111 inserted with the projecting part to prevent its separation.
• a tilt angle of a slide face of the guide 110 is between 60° to 90° based on the rotating shaft 100.
• the projecting part 330 is any one selected from a
• FIG. 1 is a cross-sectional view schematically showing a cross section of a tiltable tricycle wheel according to one embodiment of the present invention
• FIGS. 2 and 3 are cross-sectional views schematically showing a shape that a tiltable tricycle wheel of the present invention is tilted in left/right directions, respectively;
• FIG. 4 is a plan view schematically showing an engaging portion of a fixing member and a movable member
• FIG. 5 is an exploded perspective view showing a shape that the fixing member of the present invention is inserted into a wheel part and a rotating shaft;
• FIG. 6 is an assembly view of FIG. 5. [Detailed Description of Main Elements]
• Fixing pin 220 Fixing gear tooth part 221,311: Projecting rib 230: Packing
• FIG. 1 is a cross-sectional view schematically showing a cross section of a tiltable tricycle wheel according to one embodiment of the present invention
• FIGS. 2 and 3 are cross-sectional views schematically showing a shape that a tiltable tricycle wheel of the present invention is tilted in left/right directions, respectively
• FIG. 4 is a plan view schematically showing an engaging portion of a fixing member 200 and a movable member 310
• FIG. 5 is an exploded perspective view showing a shape that the fixing member 200 of the present invention is inserted into a wheel part 300 and a rotating shaft 100
• FIG. 6 is an assembly view of FIG. 5.
• the tiltable tricycle wheel As shown in FIGS. 1 to 6, the tiltable tricycle wheel, the tiltable tricycle wheel of the present invention includes a wheel part 300 having a rotating shaft 100, a fixing member 200, and a movable member 310.
• the rotating shaft 100 is a central shaft of a rear wheel configured of a pair of wheels.
• An outer face of the rotating shaft 100 is provided with a pair of guides 110 restricting a tilt of the wheel part 300.
• the guide 110 is integrally formed with the rotating shaft 100 or separately formed therefrom so that it is mounted in a structure to be inserted into the rotating shaft 100.
• the pair of guides 100 are adjacently mounted to each other so that they are
• one guide having one V shaped or ⁇ —' shaped groove formed at a circle circumference can be formed at the rotating shaft 100.
• the guide 110 allows a slide face to have a predetermined tilt so as to restrict a tilt of the projecting part 330.
• the tilted angle is flexibly designed according to a structure of the tricycle or a shape of the projecting part 330 between 60° to 90° based on the rotating shaft 100.
• the rotating shaft 100 can be provided with a separation preventing groove 111 preventing the separation of the projecting part 330. If the rotating shaft 110 rotates, the projecting part 130 restricted in the travelling direction by the separation preventing groove 111 rotates simultaneously.
• the separating preventing groove 111 is formed to be slightly wider in a turning direction than in the travelling direction so that it is possible to tilt the projecting part 330.
• the fixing member 200 is made of a material having excellent durability and strength, wherein the material is preferably selected from steel, aluminum alloy, titanium, chromoly, and carbon fiber.
• the fixing member 200 is configured in a flat cylindrical shape to penetrate the rotating shaft 100 through a through hole 201 formed at a middle thereof.
• the fixing member 200 forms a fixing part 210 by a projection of a center part of its end and the fixing part 210 and the rotating shaft 100 are firmly fixed by a fixing pin 211.
• the fixing member 200 integrally rotates according to the rotation of the rotating shaft 100.
• the circumference of the fixing member 200 is provided with a fixing gear tooth part 220 vertically projected in a radial direction or a rear end direction.
• the fixing gear tooth part 200 has a structure that a projecting rib 221 is formed to be projected by a predetermined interval in a circumferential direction.
• the wheel part 300 includes a movable member 310 in a cylindrical shape spaced by a predetermined interval from the fixed member 200 and engaged with the fixed member 200, a bearing 320 mounted between the movable 310 and the projecting part 330, a projecting part 330 provided in an inner face of the movable member 310 to be adjacent to the rotating shaft 100 and projected to be titled by a predetermined angle in both directions, a wheel 340 radially extended to the outer circumference of the movable member 310; and a tire 350 inserted into the wheel 340.
• the movable member 310 is preferably made of an aluminum alloy material and is mounted on both sides of a pair of wheels. One end of the movable member 310 is provided with a movable gear tooth part 311 engaged with the fixing gear tooth part 220. The movable gear tooth part 311 is selectively provided according to the fixing member 200 selectively mounted on one side or both sides of the rear wheel. The movable gear tooth part 311 is separately provided from the movable member 310 to be assembled at one end of the movable gear tooth part 311 and is preferably made of the same material as the fixing member 200.
• the movable gear tooth part 311 is arranged with the projecting rib 312 formed to be projected by a predetermined interval in a circumferential direction, likewise the fixing gear tooth 220. Also, a joining portion of the fixing gear tooth part 220 and the movable gear tooth part 311 has large wear possibility since the movable gear tooth part 311 is repeatedly separated from the fixing gear tooth part 220 up and down based on the projecting part as a rotation center while the projecting part 330 is tilted every time the joining portion is turned to the left and to the right of the tricycle. To prevent this, preferably, the joining face of the fixing gear tooth part 220 and the movable gear tooth 311 are inserted with a packing 230 or is applied with wear preventing lubricant.
• the packing 230 is made of any one selected from rubber, leather, plastic, etc. and is preferably made of a material having excellent wear ability not causing a problem of frequent replacement.
• the bearing 320 is adopted between the projecting part 300 and the movable member 310 to increase the rotation force of the wheel part 300, but those skilled in the art can be its position and if necessary, it can be omitted. Also, the projecting part 330
• the projecting part 330 has any one selected from a U shape, a V shape, a '—' shape, and a ⁇ - ⁇ shape. If the projecting part 330 is tilted at a predetermined angle, it is engaged with the tilted surface of the guide 110 so that the tilt of the wheel part 300 is restricted.
• the shape of the projecting part 330 is shown in the V shape in the drawing, its design can be changed according to the shape of the guide 110. For example, if the shape of the projecting part 330 is designed in the V shape as shown, the guide 110 should be designed to be larger than the volume of the projecting part 330 so that the projecting part 300 can be tilted left and right.
• the wheel 340 is configured of a rim 342 and a spoke 341, wherein a dish type or a spoke type of the spoke 341 can be applied.
• the present invention configured for the aforementioned structure has the following operating method. First, if a driver directly applies manpower to the front wheel or the rear wheels, the rotating shaft 100 of a pair of rear wheels rotates in a travelling direction. If the fixing member 200 integrally rotates according to the rotating shaft 100, the rotation force is transferred to the movable member 310 engaged with the movable member 200, which is in turn transferred to the wheel 340 and the tire 350, so that the rear wheel is travelled forward.
• the movable member 310 is separated from the fixing member 300 by a predetermined interval up and down based on the projecting part 330 as the rotating center so that the wheel is tilted, making it possible to perform a smooth turn.
• the tilt is restricted according to the shape of the projecting part 330 and the slide angle of the guide 110, the excessive tilt of the rear wheel is prevented.
• the fixing member 200 and the movable gear tooth part 311 are mounted only on the one rear wheel, the other rear wheel can be idled by the bearing 320 so that both wheels are tilted at different angles and at the same time, have different travelling distances. Consequently, the difference in the turning range of the inside wheel and the outside wheel based on the turning direction can be overcome, making it possible to obtain a smoother turning operation.
• the rear wheel is configured to be tilted according to the turn of the front wheel so that the turn can be performed with less force than the existing tricycle, making it possible to promote a stable travelling and when using driving force through the motor, the tricycle capable of saving fuel can be provided.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Transportation (AREA)
• Automatic Cycles, And Cycles In General (AREA)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (1)

Family

ID=40023166

Family Applications (1)

Country Status (3)

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Citations (3)

Family Cites Families (2)

• 2007
  • 2007-06-18 KR KR1020070059563A patent/KR100858692B1/ko active IP Right Grant
• 2008
  • 2008-06-18 WO PCT/KR2008/003468 patent/WO2008156310A1/en active Application Filing
  • 2008-06-18 CN CN2008800168819A patent/CN101678708B/zh active Active

Patent Citations (3)

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