WO2007131427A1 - Procédés de fabrication et d'utilisation d'un dispositif à roulettes et d'un véhicule de marche à roulettes - Google Patents

Procédés de fabrication et d'utilisation d'un dispositif à roulettes et d'un véhicule de marche à roulettes Download PDF

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Publication number
WO2007131427A1
WO2007131427A1 PCT/CN2007/001412 CN2007001412W WO2007131427A1 WO 2007131427 A1 WO2007131427 A1 WO 2007131427A1 CN 2007001412 W CN2007001412 W CN 2007001412W WO 2007131427 A1 WO2007131427 A1 WO 2007131427A1
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WO
WIPO (PCT)
Prior art keywords
frame
roller
wheel
pedal
rollers
Prior art date
Application number
PCT/CN2007/001412
Other languages
English (en)
Chinese (zh)
Inventor
Zhongming Wang
Lu Li
Original Assignee
Zhongming Wang
Lu Li
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhongming Wang, Lu Li filed Critical Zhongming Wang
Publication of WO2007131427A1 publication Critical patent/WO2007131427A1/fr

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Classifications

    • 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
    • B62K3/00—Bicycles
    • B62K3/002—Bicycles without a seat, i.e. the rider operating the vehicle in a standing position, e.g. non-motorized scooters; non-motorized scooters with skis or runners
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C17/00—Roller skates; Skate-boards
    • A63C17/04—Roller skates; Skate-boards with wheels arranged otherwise than in two pairs
    • A63C17/045—Roller skis
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C17/00—Roller skates; Skate-boards
    • A63C17/26—Roller skates; Skate-boards with special auxiliary arrangements, e.g. illuminating, marking, or push-off devices
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C17/00—Roller skates; Skate-boards
    • A63C17/26—Roller skates; Skate-boards with special auxiliary arrangements, e.g. illuminating, marking, or push-off devices
    • A63C17/265—Roller skates; Skate-boards with special auxiliary arrangements, e.g. illuminating, marking, or push-off devices with handles or hand supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M1/00—Rider propulsion of wheeled vehicles
    • B62M1/36—Rider propulsion of wheeled vehicles with rotary cranks, e.g. with pedal cranks
    • B62M1/38—Rider propulsion of wheeled vehicles with rotary cranks, e.g. with pedal cranks for directly driving the wheel axle

Definitions

  • This invention relates to a type of roller and a walker wheel having a transmission structure, and more particularly to the manufacture of a roller which can be driven on a walking or running manner by means of a pair of legs.
  • This type of roller is mounted behind a vertical swing frame or a parallelogram swing frame. The method of making and using a walking wheel that is driven by a walking or running style with a vertical frame.
  • the force of the user's leg to be depressed after lifting the leg during walking or running is converted into the forward driving force of the roller, and the existing various types of feet with the transmission mechanism
  • these known structures have problems in almost two degrees.
  • First, the complexity of the transmission structure is not only high in cost, but also has certain reliability and durability. For example, under the impact of leg running, the transmission rack gear may be damaged.
  • Second, the diameter of the roller is small. When most of the structure is in use, the height of the user's sole from the ground is greater than the diameter of the roller. This brings a dilemma. In order to improve the roller passing ability, it is desirable that the diameter of the roller is larger. However, in order to lower the standing height of the user, it is desirable that the diameter of the roller is smaller.
  • the current mainstream mode is also frame type, that is, the wheels are mounted on the frame, and the user's hand grasps the balance of the vehicle and balances the direction of the vehicle during operation.
  • the user drives the roller on the frame with walking or running on the legs.
  • This type of device runs smoothly, but its basic force-bearing structure is actually a reduced-type bicycle or scooter. It also requires a solid frame to support the user's weight, thus reducing the size and weight. The effect is not satisfactory.
  • the invention has the following two purposes:
  • the structure of the walking wheel is to avoid the shortcomings of the existing standing wheel vehicles in the driving mode, and the disadvantages of large volume, heavy weight and high cost in different degrees, and provide a class of the invention.
  • the roller is combined with a vertical swinging frame or a parallel quadrilateral swing frame to make and use a walking wheel, which is small in size, light in weight, simple to use, convenient to drive, and versatile. All types of people can use the transport or both.
  • a set of roller system has two rollers arranged in parallel or in-line, with a crank between the two rollers, the crank can rotate around the axis of the two rollers, and the pedal shaft has a pedal shaft at the top.
  • the pedal is mounted on the pedal shaft, and a strap is provided at a suitable place on the pedal for fixing the user's foot.
  • One of the rollers is driven by the overrunning clutch and the crank, when the foot of the person's leg is stepped on the pedal and tied After the belt is fixed, when the legs swing and walk or run, the foot can swing forward when it is swung backwards at the lowest point of the crank, or when the foot is lifted to turn the crank to the highest point and then step down.
  • the trajectory of the foot is basically the same as the sinusoid of the roller driven by the pedal pedal.
  • roller structure of the present invention has greater advantages and obvious beneficial effects in the following two aspects in comparison with the existing various types of structures in terms of production and use methods:
  • the roller structure of the present invention can better avoid these defects, because the user's foot stepped on the pedal and the roller is rotated by the crankshaft through the overrunning clutch, and there is no damage problem of the rack and pinion, and the most important is that the crankshaft is
  • the circular motion around the axis of the roller has a certain buffering protection for the joints such as the human leg, and the rotational inertia of the crank and the wheel can be well utilized in rapid motion.
  • rollers equipped with transmission structure In order to balance the stroke requirements of the transmission mechanism and ensure a certain height of the center of gravity, the diameter of the roller can only be reduced, resulting in a decrease in the ability to pass the road.
  • the roller structure is a two-wheel type, and the two basic structures can be arranged in parallel or in a straight line, and the crank rotates around the axis of the two rollers between the two rollers, and is mounted on one of the roller shafts.
  • Overrunning clutch with crank drive Overrunning clutch with crank drive.
  • the height at which the user stands at the center of gravity of the roller in this configuration does not depend on the diameter of the roller, but on the length of the crank. Therefore, the roller structure can also obtain a lower standing center of gravity while using a larger diameter roller.
  • the above describes the two kinds of pedal driving rollers that can be worn on the feet.
  • the feet can be directly used on the pedals of the roller, and the horizontal thrust of the legs can be grounded due to the large diameter of the wheel.
  • the vertical pressure can be converted into the driving force of the roller, which can achieve faster taxiing speed and strong road pass. Ability.
  • the method for manufacturing and using the walking wheel of the present invention can mount the roller on a frame of different structure on the basis of completely retaining the roller and the transmission structure, and driving the legs to swing or run.
  • the roller can be combined with the vertical swinging frame or the parallelogram swinging frame to become a popular wheeled and freight car.
  • the basic arrangement of two different walking wheels composed of a vertical swinging frame or a parallelogram swinging frame can be added to the different arrangement of the rollers of the present invention.
  • the walking wheel consists of two sets of side-by-side rollers or in-line rollers plus a vertical swinging frame.
  • the frame consists of two vertical bars and a cross bar that can swing about the axis of both ends of the crossbar.
  • One end of the two vertical rods is mounted on the rotating shaft of the two sets of parallel rollers by bearings, or on the rotating shafts of the front wheels of the two sets of in-line rollers, and the other end can be used by the user's hands to control the balance of the body.
  • the pedestrian wheel consists of two sets of in-line rollers plus a parallelogram swing frame.
  • the frame consists of two sets of two parallel bars and a parallel bar and a crossbar.
  • the two sets of parallelogram side frames can swing parallel around the axis of the two ends of the crossbar.
  • the lower ends of the two sets of parallelogram side frames are mounted on the rotating shafts of the two sets of in-line rollers by bearings, and the two front vertical bars at the upper end are longer, so that the user's hands can hold the balance of the control body.
  • the user's feet stand on the pedals of the two sides of the roller, and the two hands hold the two vertical bars respectively.
  • the top handle of the frame, and the brakes are added to the corresponding parts.
  • the hands and feet on the same side swing in opposite directions.
  • the trajectory of the foot is basically the same as the sinusoid of the roller driven by the pedal pedal, and the driving roller rotates forward.
  • the two hands hold the two vertical frame to control the balance of the body.
  • the brake control of the side rollers during cornering the purpose of smooth and safe operation is achieved.
  • the wheeler can be a hand-drawn trolley without any modification.
  • the pedestrian wheel vehicle of the present invention has the following advantages and obvious beneficial effects in comparison with the existing similar standing wheel vehicles.
  • the weight of the user of the wheeler is basically carried by the pedal, the pedal shaft, the crank and the roller, and the frame is basically unstressed. It can greatly reduce the weight ratio and volume ratio of the frame in the whole vehicle.
  • the frame structure of the wheeler has a crossbar, so that the two vertical bars swing around the axis of the two ends of the crossbar at a certain distance. When used, it is more in line with the physiological movement structure of ergonomics. It is also more convenient to maintain body balance while running. More importantly, the roller has a crank transmission structure that passes the overrunning clutch. When the user swings the legs and walks or runs, the leg swings backwards at the lowest point of the crank, or the foot lifts up to turn the crank. When the highest point is pressed down, it can drive the wheel car to move forward. Its running speed can be close to the running speed of ordinary bicycles.
  • the wheel is much superior in terms of structure, weight, cost, etc., and can also be mounted on the vertical frame.
  • the motorized drive mechanism becomes a motorized scooter.
  • Figure 1 is a schematic diagram of the basic structure of a side-by-side roller.
  • FIG. 2 is a schematic view showing the basic structure of an in-line type roller.
  • Fig. 3 is a schematic view showing the basic structure of a walking wheel after the vertical roller is mounted on the vertical swinging frame.
  • Fig. 4 is a schematic view showing the basic structure of the walking wheel after the vertical roller is mounted on the vertical swinging frame.
  • Fig. 5 is a schematic view showing the basic structure of the walking wheel after the single-roller is mounted on the vertical swinging frame.
  • Figure 6 is a schematic diagram showing the basic structure of a pedestrian wheeled vehicle with a parallelogram swinging frame mounted on the side inline roller.
  • Figure 7 is a schematic diagram showing the basic structure of a walking wheel car with a parallelogram swinging frame and a seat with an inline roller.
  • Fig. 8 is a schematic view showing the basic structure of another walking wheel vehicle with a parallelogram swinging frame and a seat with an inline roller.
  • Figure 9 is a schematic diagram of the basic structure of a motorized or hybrid pedestrian vehicle based on a walking wheeled vehicle with a side roller vertical swinging frame and a power unit mounted on the vertical frame.
  • Figure 10 is a schematic view of the user using a side roller or a side-by-side roller.
  • Figure 11 is a schematic illustration of the user carrying small cargo when using a side roller or a side-by-side roller.
  • rollers on both sides of the side-by-side roller are symmetrical.
  • the whole roller system has two left and right rollers 1 and 8 of the same diameter, an overrunning clutch 2 installed in the wheel 1, and a frame 3 for coupling the two wheels together.
  • the two-sided symmetrical crank 4 is mounted on the pedal shaft 5 at the outer end of the crank, the bearing seat of the pedal 6 is sleeved on the pedal shaft 5, and the foot strap 7 is provided at a suitable place on the pedal 6.
  • the user's one foot is stepped on the pedal 6 and fixed with the strap 7, when the foot is depressed to make the crank After going to the bottom dead center, the foot starts to lift upwards while dragging the entire roller group to slide forward.
  • the pedal 6 is pushed down, and the crank 4 is driven by the overrunning clutch 2.
  • the roller 1 is rotated forward until the crank 4 is turned back to the bottom dead center, and the roller 8 is always in a freely rotating state.
  • the front roller 9 and the rear roller 19 of the in-line roller have the same diameter
  • the crank 12 and the crank 21 have the same size
  • the front roller 9 is provided with an overrunning clutch 13
  • the axle 14 is equipped with a frame 15 to connect the front and rear wheels.
  • the pedal shafts 10 and 20 are coupled with the swinging rod 11, and the pedal 16 is fixed at a suitable place of the swinging rod 11.
  • the pedal 16 is provided with a foot strap 17 on the upper side of the pedal 16 for the user's foot 18 is fixed on it.
  • one of the user's feet 18 is stepped on the pedal 16 and fixed with the strap 17.
  • the pedal of the foot drives the cranks 12 and 21 to the bottom dead center, the foot 18 starts to lift upwards while dragging the entire roller set.
  • Slide forward when the foot is raised to the top dead center of the cranks 12 and 21, the pedal 16 is depressed downward, and the roller 9 is driven forward by the crank 12 via the overrunning clutch 13 until the cranks 12 and 21 are turned back to the lower end. Point, while the roller 19 is always in a freely rotating state.
  • FIG. 3 the basic structural schematic diagram of the walking wheel after the vertical roller is mounted on the vertical swinging frame.
  • One of the trains has left and right rollers 22 and 29, an axle 23, a connecting frame 24 of the roller 22 and the roller 29, a crank 27 between the two wheels, a pedal 25, a strap 26 on the pedal 25, and a crank 27 passing through
  • the overrunning clutch 28 and the roller 29 are driven, and the two sets of wheels have vertical frame 30 and 38.
  • the appropriate part of the frame 30 has a rotating shaft seat 32, and a U-shaped cross frame 36 is fixed on the vertical frame 38. At one end of the frame 36, there is a rotating shaft seat 34.
  • the rotating shaft 35 passes through the bearing housing 34 and the bearing housing 32, and is coupled by a nut 31.
  • the two side frames can swing around the shaft 35, and are respectively mounted on the top of the frame 30 and the frame 38.
  • the user's left and right feet are respectively stepped on the pedals of the two sets of roller cars, and tied with straps, and the two hands grasp the handles of the frame of the two vertical bars, and can walk normally.
  • Fig. 4 the basic structural schematic diagram of the walking wheel after the vertical roller is mounted on the vertical swinging frame.
  • the two sets of in-line roller structures are mirror-symmetrical wheel trains and vertical rod frames, one of which has front and rear rollers 48 and 53, and the roller 48 and the roller 53 are connected to the frame 51, respectively.
  • Cranks 44 and 54 with a swing lever 45 between the two cranks, a suitable place on the swing lever .45 has a pedal 52, a strap 50 on the pedal 52, and the two vertical frame are coupled to the front axle by bearings
  • the vertical shaft 41 of the vertical rod 46 is provided with a brake device 39 at the handle of the frame, and the vertical frame of the two sets of rollers is spaced apart by the cylinder 40 to be swung around the rotating shaft 42. .
  • the user's left and right feet are stepped on the pedals of the two sets of roller cars and tied with straps. Both hands grasp the handles of the two vertical bar frames, and can walk normally. For example, when the right leg is taken forward, the right foot is raised until the cranks 44 and 54 of the front and rear wheels are turned to the top dead center, the pedal 52 is depressed downward, and the crank 44 is driven forward by the crank 44 through the overrunning clutch 43. Until the cranks 44 and 54 are turned to the bottom dead center, the left foot starts the same process, and the two legs alternately swing and lift as if they are in the same way.
  • rollers Since one of the two sets of rollers is equipped with an overrunning clutch, the roller is Can't reverse when scrolling, no matter what two feet It is the swinging or stepping on the pedal, which can push the forward wheel of the walking wheel.
  • you need to turn you can use two sides to grasp the brakes that need to turn the corners, you can make the wheel turn, and both sides can hold the vehicle at the same time.
  • the two types of walking wheels described above are all made up of a combination of a separately usable roller and a vertical swinging frame.
  • the present invention proposes the basic design of the following two-wheeled pedestrian vehicle.
  • FIG. 5 it is a schematic diagram of the basic structure of the pedestrian wheel after the vertical single-roller is mounted on the vertical swinging frame.
  • the whole vehicle structure there are two sets of mirror-symmetrical rollers and transmissions, one of which consists of a roller 60, an overrunning clutch 61, a crank 62, a pedal 63 and the like.
  • the right roller is mounted on the frame 59
  • the left roller is mounted on the frame.
  • the frame 59 of the frame 59 has a shaft seat 57 at one end, and a suitable position of the frame 56 has a shaft seat 55, which can swing about the rotating shaft 58.
  • Fig. 6 a basic structural diagram of a pedestrian wheeled vehicle in which a side-by-side inline roller is mounted with a parallelogram swinging frame is shown.
  • the whole vehicle consists of two sets of mirror-symmetrical rollers and transmissions, and a parallelogram frame.
  • One set of roller frame devices consists of a rear roller 64, a roller coupled to the bottom frame 65, a front roller 66, and a rear wheel vertical frame.
  • the user's left and right feet are stepped on the pedals on both sides and tied with straps. Both hands grasp the handles of the vertical frame on both sides, and can walk normally.
  • the use of the walking wheel is the same as that shown in Figure 3. Same.
  • the difference with the pedestrian wheel shown in Figure 5 is that the car uses a parallel swing frame, which is more stable and safe to use, and is especially suitable for the elderly and children.
  • FIG. 7 the basic structure of the walker wheel consisting of the inline roller shown in Fig. 2 and the parallelogram swinging frame equipped with the seat is shown.
  • the vehicle structure consists of two sets of mirror-symmetrical rollers and transmissions, as well as a parallelogram frame.
  • One set of roller frame device consists of a rear roller 80, a bottom frame 81, a crank connecting rod 82 of the front and rear rollers, and a front wheel 84.
  • the length between the bottom frame 81, the front frame 88, the rear frame 83, the U-shaped frame 87 of the U-shaped frame 87 and the rotating shaft seat 86 constitutes a swingable parallelogram frame.
  • FIG. 8 there is shown another structural schematic diagram of a walker wheel consisting of a parallelogram swinging frame equipped with a seat as shown in Fig. 7.
  • the whole vehicle structure consists of two mirror-symmetrical symmetrical rollers and transmissions, and a parallelogram frame.
  • One set of roller frame devices consists of a rear roller 96, a roller coupled to the bottom frame 97, and a front frame of the front and rear rollers 97.
  • Round 98 Rear wheel vertical frame 99, hinge base 101, horizontal frame 103 and spacer sleeves 102 and 105 at both ends, front wheel vertical frame 100, hinge seat 104, seat 108 fixed to the horizontal frame, shaft Composition of 106 and 107.
  • the length between the bottom frame 07, the front frame 100, the rear frame 99, the rotating shaft base 102 of the horizontal frame 103 and the rotating shaft seat 105 constitutes a swingable parallelogram frame.
  • the vertical swinging frame is equipped with a power unit to make it a mobile or hybrid power.
  • the whole vehicle is composed of a frame and two sets of left and right symmetrical rollers and transmission mechanisms, one of which has a roller 109, an overrunning clutch 109, a transmission chain 110, a motorized device 111 fixed on the vertical pole 112, and a vertical frame.
  • the rotating shaft seat 113, the rotating shaft seat 114 on the U-shaped beam 115, the rotating shaft 117, the crank 118 and the pedal 119 are composed of components.
  • the motorized unit can be equipped with various internal combustion engines, either batteries and electric motors, or the motor can be mounted in the axle of the wheel 109, and 111 is an external battery pack.
  • the attachment of the mobile device is smoother and more convenient.
  • the vehicle is shaped into a hybrid, it is possible to swing the pedal with the foot, and at the same time, the driving device can be driven to drive.
  • the cranks and pedals on the two side rollers can be removed, and two fixed pedals can be placed on the extension of the two-sided vertical swing frame.
  • the feet can be close together or the front and rear forks according to the road condition to ensure the smoothness during driving.
  • FIG. 10 it is a schematic diagram of a user using a side roller or a side-by-side roller.
  • a roller 120 on one side, a swing frame 121, a U-beam frame 122, and a swing axis 123 of the frame on both sides.
  • Handle 124 on the side of the frame, user 125.
  • the rotating shaft core of the thigh and the pelvis of the user's human body substantially coincides with the swinging shaft core of the frame, and the handle of the vertical rod frame swinging around the shaft core is the same as the swinging direction of the human hand while walking, thereby realizing the use.
  • a walker and the human physiological structure and movement characteristics can achieve a harmonious unity.
  • 126 is a small cargo loaded on a pedestrian car.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Rehabilitation Tools (AREA)
  • Motorcycle And Bicycle Frame (AREA)

Abstract

L'invention concerne des procédés de fabrication et d'utilisation d'un dispositif à roulettes et d'un véhicule de marche à roulettes. Avec les pieds posés sur ce dispositif à roulettes, ce dernier peut être entraîné par la marche ou par la course. Ce dispositif à roulettes est composés de deux roulettes (1, 8) d'un vilebrequin (4), d'un axe de pédale (5) et d'une pédale (6), etc.. Les deux roulettes (1, 8) peuvent être agencées côte à côte ou en ligne. Ce dispositif à roulettes peut être utilisé individuellement. Le véhicule de marche à pédale est formé par l'utilisation d'un cadre de véhicule à balancement de leviers verticaux (40, 41, 42, 46) ou d'un cadre de véhicule à balancement de leviers en forme de parallélogramme (68, 69, 70, 71, 72, 73, 74, 75, 77) afin de connecter deux groupes de dispositifs à roulettes.
PCT/CN2007/001412 2006-05-15 2007-04-27 Procédés de fabrication et d'utilisation d'un dispositif à roulettes et d'un véhicule de marche à roulettes WO2007131427A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200610079790.2 2006-05-15
CNA2006100797902A CN101073705A (zh) 2006-05-15 2006-05-15 一类滚轮及步行轮车的制作和使用方法

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Publication Number Publication Date
WO2007131427A1 true WO2007131427A1 (fr) 2007-11-22

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PCT/CN2007/001412 WO2007131427A1 (fr) 2006-05-15 2007-04-27 Procédés de fabrication et d'utilisation d'un dispositif à roulettes et d'un véhicule de marche à roulettes

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CN (1) CN101073705A (fr)
WO (1) WO2007131427A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009095631A1 (fr) * 2008-01-29 2009-08-06 H Grossman Limited Patinette améliorée
CN102001402A (zh) * 2010-10-28 2011-04-06 张璐 双踏板动感平衡车
FR2991282A1 (fr) * 2012-06-04 2013-12-06 Peugeot Citroen Automobiles Sa Tricycle

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102152838B (zh) * 2011-03-17 2015-04-22 郑爱军 双轮曲轴并行摆动车
CN105059464A (zh) * 2015-08-18 2015-11-18 李永志 一种电动快速步行器
CN110965751A (zh) * 2019-11-20 2020-04-07 国网山东省电力公司日照供电公司 一种行走式电力检测梯

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Publication number Priority date Publication date Assignee Title
US4515382A (en) * 1983-01-28 1985-05-07 Hkc, Inc. Occupant propelled wheeled device
CN87100484A (zh) * 1987-01-22 1987-10-28 王仲明 多用轮鞋
US4973071A (en) * 1984-06-19 1990-11-27 Masao Ishizaki Dicycle
CN2721512Y (zh) * 2004-09-17 2005-08-31 马笑根 直踏式自行车

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4515382A (en) * 1983-01-28 1985-05-07 Hkc, Inc. Occupant propelled wheeled device
US4973071A (en) * 1984-06-19 1990-11-27 Masao Ishizaki Dicycle
CN87100484A (zh) * 1987-01-22 1987-10-28 王仲明 多用轮鞋
CN2721512Y (zh) * 2004-09-17 2005-08-31 马笑根 直踏式自行车

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009095631A1 (fr) * 2008-01-29 2009-08-06 H Grossman Limited Patinette améliorée
US8801006B2 (en) 2008-01-29 2014-08-12 H Grossman Ltd. Scooter
CN102001402A (zh) * 2010-10-28 2011-04-06 张璐 双踏板动感平衡车
FR2991282A1 (fr) * 2012-06-04 2013-12-06 Peugeot Citroen Automobiles Sa Tricycle

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