FR2561608A1 - Motorised traction device with one wheel and its application to pulling plant on casters - Google Patents

Abstract

The present invention relates to the field of mechanics. Its subject is a traction device of the motorised assembly type, characterised in that it comprises a rolling means ensuring the movement, a grasping means for the user and a motorising device intended to drive the rolling means and transmitting its motive energy to the movement means by means of a driving device. The invention finds its use for performing games of skill or sporting activities.

Description

New traction device and its application.

The invention relates to a new traction device suitable in particular for driving mobile machinery.

 The invention relates more particularly to a new device for ensuring the movement of vehicles fitted with rolling devices.

 It specifically relates to a traction device of the motorized assembly type, characterized in that it comprises a rolling means ensuring movement, a gripping means for the user and a motorizing device, intended to drive the rolling means and transmitting its motor energy by means of displacement by a drive device.

 In this device we will describe, more particularly, an embodiment which consists of a single-wheel motorized vehicle comprising a biaxial support inside which the rolling means is fixed or suspended, a handlebar fixed to the biaxial support by a horizontal transverse tube , connecting the two axes and an engine of the internal combustion engine type, driving the rolling means by means of a friction device arranged in an upper vertical plane.

 This particular embodiment can also be defined by the following methods 1) The biaxial support is a fork of the bicycle fork type, on which the drive wheel is fixed by means of two locking means.

2) The handlebar is inserted into the horizontal portion of the biaxial support by means of a hollow vertical rod sliding inside a tube welded vertically in the middle of the horizontal portion of said support, and subject to said tube by two clamping means.

3) The height of the handlebar is adjustable in height by sliding inside the hollow tube as a function of the size of the user, and of the type of performance required of the device according to the invention.

4) The handlebars are equipped with three regulation devices, two of which are carried by the free ends of the handlebars.

 One of the regulating devices controls the speed of the motor, and makes it possible to accelerate or slow down at the will of the user.

 Another regulation device is a braking device, making it possible to prevent the rotation of the driving wheel, either by actuating a jaw, or by moving a clamping device disposed in the center of the wheel.

 A third regulating device makes it possible to control the stopping or starting of the engine by controlling the air intake.

5) The hollow rod carrying the handlebar also comprises a lever arranged along the said rod, and coming to be flush with the level of the handlebar; this allows control of the drive wheel drive device. I1 is, in general, a lever ensuring the disengagement or the clutch of the motor on the drive device.

 6) The rolling device is a spoke wheel, of the type used for mopeds, carrying a rim wider than that of bicycles, and provided with an elastic means such as a tire. The diameter of the wheel and the width of the rim are determined so as to ensure the greatest possible stability, the greatest possible robustness, better maneuverability of the machine, and greater lightness of the device according to the invention.

 The width of the rim is also determined in order to ensure good adhesion to the ground of the elastic means.

 The diameter of the wheel is calculated so that it is neither too small, in order to ensure a better balance for the whole, nor too large, so as not to hamper the user during the various maneuvers or developments including he will make himself master.

 The wheel is provided with an elastic device of the pneumatic type fitted onto the rim, the width and the external design of which have been chosen so as to ensure the best possible grip on the ground. Thus the user will avoid uncontrolled skidding, whatever the state of the ground, smooth or irregular, or the state of the ground, dry, wet or snowy.

 The elastic device may include surface irregularities such as ribs, grooves or corrugations, allowing various degrees of adhesion, ranging from extreme adhesion to the ground, up to extremely low adhesion in the case where the user intends to '' perform voluntary and controlled slips.

 The rotation of the wheel inside the biaxial support is ensured by a ball bearing, or a needle or roller bearing, of the type intended for mopeds.

 I1 can be a ball bearing of a similar or identical type to that used for skateboards or roller skates.

7) The motor is fixed to the fork by means of an articulated support controlled by the vertical handle which makes it possible to connect, or disconnect the motor, from the wheel drive device.

8) The engine is preferably, but not limited to, an air-cooled single cylinder type explosion engine.

In a usual manner, the engine is started either by pushing the wheel by hand, the engine being in the engaged position, or by means of an autonomous starting device making it possible to give the engine a sufficiently rapid movement and extended to cause ignition, in this case the engine is in the disengaged position.

 The engine speed is controlled by a throttle acting on the accelerator located on or near the right handlebar.

 The traction device according to the invention is stopped either by using the braking device, or by actuating a lever acting on the intake or on the composition of the fuel mixture. By actuating this lever, the fuel mixture is interrupted or increased. This lever also makes it possible to adjust the composition of the fuel mixture, by modifying the air content thereof.

 It is however possible to replace the internal combustion engine described above with an electric motor, powered by one or more batteries.

 The advantage of the traction device according to the invention is that it is a very handy device making it possible to move a roller skater, a skateboarder, a skateboarder casters fitted with a sail, a sledge, a sled and more generally any machine moving on casters or on skates. It also makes it possible to speed up a hang glider necessary for takeoff.

 I1 has the advantage of being very handy, compact, inexpensive to buy or to maintain, easy to store like for example in the trunk of a car, very stable and requiring little energy.

 This is the reason why a traction device comprising a motor at the front mounted on the rolling means is used in a preferred manner, in order to have better stability and better propulsion which does not hamper visibility, nor the movements of the user.

 The traction device according to the invention finds a preferred use in the possibility, for a roller skater, a skateboarder or a windsurfer to easily evolve on flat or inclined terrain, to help climb or climb a slope. , or to brake and control the speed thereof when going down a slope.

 It also allows a skater to perform artistic figures or gymnastic movements by giving the athlete sufficient movement and a speed of evolution that the latter can control. Thus very difficult acrobatic or gymnastic movements by themselves can be performed more easily, either by breaking down movements, thanks to the slow motion, or by accelerating the execution of such movements, and making them more difficult, more interesting to perform and more attractive. .

 The traction device according to the invention can be used for the execution of skill games, for participation in sports competitions, such as speed races, comprising obstacles, or baffles, gymkanas, slaloms, etc. to skateboarders or roller skaters.

 Being easy to handle and not very dangerous, it can be used by children, adolescents and adults. It does not require the use of reserved spaces or grounds used specifically for such sports, or such distractions.

Claims (6)

 1 ") A traction device of the motorized assembly type, characterized in that it comprises a rolling means ensuring movement, a gripping means for the user and a motorizing device intended to drive the rolling means and transmitting its motive energy by means of displacement, by means of a driving device.  2 ") A particular embodiment of the device according to 1") which consists of a single-wheel motorized vehicle, comprising a biaxial support inside which the rolling means is fixed or suspended, a handlebar fixed to the biaxial support by a transverse tube arranged horizontally connecting the two axes in a rigid manner and an engine of the internal combustion engine type driving the wheel by means of a friction device applied to the wheel and disposed in an upper vertical plane.  3) An embodiment of the device according to one of claims 1 ") or 2") wherein the handlebars disposed in a horizontal plane is directed by a vertical rod inserted in the handlebars.  4) An embodiment of the device according to one of claims 1 "), 2") or 3) wherein the handlebar is provided with three regulation devices.  5) An embodiment of the device according to one of claims 1 ") or 2") in which the rolling device is a spoke wheel having a wide rim.  6) An embodiment of the device according to one of claims 1 "), or 2") in which the motorization device is fixed to the fork by means of an articulated support controlled by a lever arranged in the center support.