Pedaling scooter device

The present invention discloses a. scooter device comprised of: a chassis body which connects the following components: a steering arrangement, one front wheel; two back wheel connected to at least one axle, where each wheel moves freely around the axle. a pedaling mechanism including a pedal normally positioned at an upper position above the standing platform connected by a shaft to a pedal axle and a spring connecting the pedal shaft to the chassis body for returning the pedal to upper position, a pedal transmission mechanism for translating the pedal motion into rotational motion of at least one back wheel's axle and a horizontal transmission mechanism arranged for transferring the rotational movement to at least one back wheel, said mechanism including at least one hollow cylinder attached on one side to a rolling bearing which is of clamped on at least one back wheel axle, and on the other side to one of the back wheels. The back wheel's cog wheel is clamped on the hollow cylinder.

BACKGROUND

1. Technical Field

The present invention relates to the field of pedaling devices, and more particularly, to a scooter pedaling device.

2. Prior Art

Different types of pedaling scooters are know in the art, some of the patents application such as US 2010001487, EP1413507 or WO2009035278 include two pedals requiring simultaneous movement of both legs when driving the scooter.

Chinese application no CN 201169357, disclose a pedaling scooter with a complex gear mechanism which is not fitted with normal operation of the scooter. Application NO. GB171825 uses a foot lever having direct transmission connection to the back wheel, which may intervene with normal operation of the scooter.

SUMMARY OF THE INVENTION

The present invention disclose a scooter device comprised of: a chassis body connecting the following components: a steering arrangement, one front wheel, at least one back wheel connected to at least one axle, where each wheel moves freely around the axle, a pedaling mechanism including a pedal normally positioned at an upper position above the standing platform connected by a shaft to a pedal axle and a spring connecting the pedal shaft to the chassis body for returning the pedal to upper position where no pressure is applied on the pedal, a pedal transmission mechanism for translating the pedal motion into rotational motion of at least one back wheel's axle and a horizontal transmission mechanism arranged for transferring the rotational movement to at least one back wheel, said mechanism including a cog wheel and at least one hollow cylinder attached on one side to a rolling bearing which is of clamped on at least one back wheel axle, and on the other side to one of the back wheels.

According to some embodiments of the present invention the pedal transmission mechanism includes a chain connecting a cog wheel of the pedal axle to a cog wheel of the back wheels axle, wherein the back wheel's cog wheel is clamped on the hollow cylinder and the pedal cog wheel diameter is larger than the back wheel axis cog wheel.

According to some embodiments of the present invention the scooter includes two back wheels.

According to some embodiments of the present invention the hollow cylinder is comprised of two cylinders, a first cylinder connected to the rolling bearing and the second cylinder attached to the back wheel, wherein the cylinders are concocted with screws.

According to some embodiments of the present invention the scooter further comprises an electrical motor for powering the rotational motion generated by the pedal.

According to some embodiments of the present invention the two back wheels are connected to the same axle.

According to some embodiments of the present invention each back wheel is connected to a separate axle, wherein at least on axle support the horizontal transmission mechanism.

According to some embodiments of the present invention the horizontal transmission rotate both back wheels, where the horizontal transmission includes an additional hollow cylinder connected to the second back wheel.

According to some embodiments of the present invention the hollow cylinder includes a screw thread for connecting the back wheel

According to some embodiments of the present invention the scooter further comprises a standing platform.

According to some embodiments of the present invention the scooter further comprises a seating platform.

DETAILED DESCRIPTION

The present invention discloses a pedal scooter, providing a driving power to the conventional scooter enabling to the user to drive scooter when standing or sitting on the scooter by applying pressure of the scooter pedal.

FIG. 1illustrates the scooter device according to some embodiments of the present invention. The scooter is comprised of chassis frame interconnecting between two back wheels, one front wheel a steering arrangement for controlling the scooter drive direction, a standing or seating platform (not shown). When standing on the scooter the user can push the pedal with his right or left leg.

FIG. 2illustrates the pedal transmission mechanism of the scooter device according to some embodiments of the present invention. The pedal150is attached to the shaft210which is connected to axle220. The spring250connects between the pedal150and the frame110for retracting the pedal to its upper position when not under pressure. Cog wheel230mounted on the axle220supports the transmission of the rotational motion created by the pedal movement, to the cog wheel330through the chain240. The pedal position can be changed between right and left position. For changing its' position the pedal can be rotated around the shaft210.

The cog wheel330which includes a ratchet mechanism is mounted on a first cylinder340. The cylinder340is attached on one side to the rolling bearing which is clamped on the axis350, and on the second side to cylinder320. This construction of the cylinders creates a horizontal transmission mechanism for transferring the motion of the cog wheel330to one of the back wheels. The use of the rolling bearing enable free rotation of the back wheels when the pedal is inactive. The ratchet mechanism allows continuous rotary motion of the cog wheel in only one direction while preventing motion in the opposite direction, hence when the user is not pedaling, the cog wheel is not preventing motion of the back wheels.

FIG. 3illustrates perspective partial view of the horizontal transmission mechanism according to some embodiments of the present invention. The horizontal transmission mechanism includes the cylinders340and320which are attached with at least one screw325. On the second end the cylinder320is connected to the back wheel axle350.

FIG. 4illustrates is an exploded cross sectional view drawing of the horizontal transmission components in connection with back axis of scooter according to some embodiments of the present invention. The back wheels are connected to axle350, such that enabling the back wheels to freely rotate about the axle350. The cylinder320has internal screw thread327on one side for connecting the wheel, and holes on the other side for connecting to the cylinder340. Cylinder340includes corresponding holes on one side to be attached to cylinder360, on the second side are connected to the rolling bearing which is clamped on the axis350. The rolling bearing310enables free rotation of the cylinder340around the axis350. On the cylinder340is further mounted the cog wheel330having a ratchet mechanism for transforming one directional circular motion created by the pedal to the back wheel.

FIG. 5illustrates a cross sectional view of the vertical transmission mechanism in connection with back axis of scooter according to some embodiments of the present invention.

The two connected cylinders are screwed on one side to the back wheel140and on the other side connected to the axle350through the rolling bearing310. The cylinder350is rotated by cog wheel330, thereby transferring the circular motion of the cog wheel to the back wheel140. The construction using the two cylinders is optional and one cylinder can be used instead. The use of two cylinders is provided to enable easy maintenance of the scooter when replacing or fixing the back wheel, the screw connection of the cylinders can be easily opened, maintaining the rest of the mechanism untouched.

According to some embodiments of the present invention the axle330may be connected only to one back wheel, the second wheel can be connected to a separate axle which is attached directly to the frame of the scooter.

According to some embodiments of the present invention the scooter further comprises an electrical motor for generating power in addition to the rotational motion created by the pedal.

FIG. 6is an illustration of the scooter design according to some embodiments of the present invention.

FIG. 7illustrates an exploded perspective view of the vertical transmission to the back of the scooter device according to some embodiments of the present invention. The horizontal transmission includes a cog wheel330having a ratchet mechanism which is mounted on the cylinder340. The cylinder340is connected to cylinder320which is attached to the back wheel140.

FIGS. 8 and 9illustrate an exploded perspective view of the transmission mechanism between the pedal and the rear cog wheel according to some embodiments of the present invention.

In this embodiment the spring250is connected on one side to the pedal and on the other side to cog wheel240.FIG. 8illustrates the state in which the pedal is pressed and the spring stretched.

FIG. 9illustrates the state in which the pedal is in released upper position and the spring is in released position.

It is to be understood that where the claims or specification refer to “a” or “an” element, such reference is not to be construed that there is only one of that element.

Any publications, including patents, patent applications and articles, referenced or mentioned in this specification are herein incorporated in their entirety into the specification, to the same extent as if each individual publication was specifically and individually indicated to be incorporated herein. In addition, citation or identification of any reference in the description of some embodiments of the invention shall not be construed as an admission that such reference is available as prior art to the present invention.