A load and transport cart includes, under a loading platform, a triangular steering plate and, therebelow, a front part of a footboard, wherein the steering plate has a bore, an annular-segment shaped groove, an elongated hole and two opposing first ball heads. The first ball heads each lie in an ar
A load and transport cart includes, under a loading platform, a triangular steering plate and, therebelow, a front part of a footboard, wherein the steering plate has a bore, an annular-segment shaped groove, an elongated hole and two opposing first ball heads. The first ball heads each lie in an articulated manner in a respective bearing at one end of a respective steering lever and, at the other end of each lever is a bearing for a respective further ball head of a respective triangular swinging fork on a stub axle of which a respective front wheel is rotatably mounted, wherein each of the swinging forks is rotatably mounted on the loading platform via pivot pins, and wherein the steering axis is located in front of an imaginary axis and can be deflected to the left or right by the steering angle of 45°.
대표청구항▼
1. A load and transport cart in the form of a scooter, comprising at least three wheels, two of the wheels being front wheels located proximate a front of the cart and one of the wheels being a rear wheel located proximate a rear of the cart, a handlebar, a loading platform and a footboard which can
1. A load and transport cart in the form of a scooter, comprising at least three wheels, two of the wheels being front wheels located proximate a front of the cart and one of the wheels being a rear wheel located proximate a rear of the cart, a handlebar, a loading platform and a footboard which can be folded upward from a use position parallel to a roadway and locked in the upward folded position, wherein; the two front wheels are equipped with an inclination mechanism for absorbing centrifugal force during cornering;the handlbar is fixedly connected to the loading platform via two steering columns;the cart further comprises, under the loading platform, a triangular steering plate and, below the steering plate, a front part of the footboard,the steering plate comprises a bore, in which a round pin of the front part of the footboard is received, an annular-segment shaped groove in which a steering-pivot pin of the front part of the footboard is received and connects the front part of the footboard to the loading platform so that the footboard is rotatable about a steering axis of the cart which is more toward the front of the cart than an axis of rotation of the front wheels, an elongated hole in which a round guide pin of the loading platform is received, and two opposing fit ball heads;wherein each of the first ball heads is received in an articulated manner in a bearing at one end of a respective one of two steering levers, said levers each have, at another end thereof, a bearing in which a respective second ball head of a respective triangular swinging fork is received, each of the front wheels being rotatably mounted on a stub axle of a respective one of the swinging forks,each of the swinging forks is rotatably mounted on the loading platform via respective pivot pins;whereby:when the loading platform is deflected to the left and right about the steering axis via the handlebar, the steering plate presses via the respective first ball heads onto the respective steering levers,and so the further second ball heads are pressed upward or downward,and so the swinging forks are pressed upward or downward about the pivot pins and, therefore, the front wheels are pressed upward or downward by the same amount but in opposite direction,and so the two front wheels are slanted to the left or right relative to the roadway during steering, and the steering axis, located in front of the axis of rotation of the front wheels and the front wheels can be deflected to the left or right by the steering angle of 45°. 2. The load and transport cart according to claim 1, wherein the footboard is rigidly fixable via a sliding element at the front part thereof and the upward folding of the footboard is about at least one axis member of the front part thereof, wherein the locking of footboard which has been folded upward is by way of a gas pressure spring and stops, wherein, in this state, the handlebar is shifted forward via the steering columns, wherein the handlebar comprises a hand-curve grip for gripping and a crossbar for stiffening the steering columns which are connected to one another at tops thereof via the crossbar, wherein the handlebar is steplessly height-adjustable and lockable, and wherein the footboard is adapted to be uninstalled and removed at the option of a user of the art. 3. The load and transport cart according to claim 1, wherein one or a pair of support wheels are mounted on folding points which are located below the axis members when the footboard is in the upward folded position, thereby ensuring that the cart can still stand on three or four wheels with the footboard folded up. 4. The load and transport cart according to claim 1, wherein the rear wheel is a drive wheel, comprising an electric wheel hub motor, wherein the handlebar is provided with two brake actuators and an audible warning device and a throttle lever for regulating output of the electric wheel hub motor, wherein the regulation functions by way of an acceleration sensor which measures the acceleration of the load cart only via foot thrust of a driver of the cart and switches on the wheel hub motor. 5. The load and transport cart according to claim 4, wherein each of the wheels, other than support wheels, is a drive wheel comprising an electric wheel hub motor. 6. The load and transport cart according to claim 1, wherein the rear wheel further comprises a fixedly installed first guard plate and an additional guard plate which is installed over the first guard plate and is supported via a rod assembly such that the additional guide plate is rotatable about a rear wheel axle and so a tire of the rear wheel is covered by swiveling the additional guard plate when the footboard is folded upward. 7. The load and transport cart according to claim 1, further comprising a foldable and height-adjustable support for supporting a driver, wherein the support is comprised of a U-shaped arch having two legs and a backrest or saddle centered in the arch, and two tubular bars in which the legs are slidable, height-adjustable and lockable, wherein the tubular bars are rotatably supported in bearing blocks which are fixedly mounted on the footboard, and wherein the tubular bar are fixed when in a vertical position and when in a folded position. 8. The load and transport cart according to claim 1, wherein only the two front wheels are drive wheels each comprising an electric wheel hub motor, and the cart further comprises electronics for effecting slower rotation of an inner wheel of the two front wheels than a outer wheel of the two front wheels as the cart is steered around a curve. 9. The load and transport cart according to claim 1, further comprising only one motor driving both of the font wheels via a differential gearbox. 10. The load and transport cart according to claim 1, wherein a surface of a cover for one or more rechargeable batteries mounted on the cart comprises a loading surface of the loading platform. 11. The load and transport cart according to claim 10, wherein the loading surface and free space thereabove are sized to receive and support one beverage crate or two beverage crates stacked one on top of the other. 12. The load and transport cart according to claim 10, further comprising a shopping bag sized to be placed on the loading surface and self-foldable via spring wire and having two handles which can be hung on two respective hooks located on the two respective steering columns elevation of the hooks on the steering columns being infinitely variable via adjustable and lockable sliding elements. 13. The load and transport cart according to claim 10, further comprising a baby basket or a seat for a small child which baby basket or seat is installable on the loading surface.
Radenbaugh, Michael Jay; Wilk, Robert Anthony; Faraon, Starling T.; Fuschetti, Dean F.; Wolf, Joseph Israel, Standing electric vehicle for golf course travel.
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