FR2838399A1 - Light foldable bicycle comprises saddle carried by telescopic tube, removable foldable handlebar connected by pivot pin fixed by collar sliding on sleeve sliding in tube retaining fork carrying wheel - Google Patents

Abstract

The light bicycle comprises a standard saddle (1) carried by a telescopic tube (2) sliding in a tube (23). A compression spring (4), fixed to a ring (3), is connected to a cable (6) housed in a ring (37). A removable handlebar (7,8,11) can be folded by means of a pivot pin (9) which is fixed by a collar (12) on a sleeve (13). The sleeve is at the end of the telescopic tube (14) sliding in a tube (39) and locked by the device (56). The tube (39) retains the fork (30,40) carrying the wheel (33) and rests on foldable feet (29,32).

Description

- Bicyc / e / éper c / éboitab / e with ineffi c movement / or motorized This

  invention includes a light and removable motorized or inertial movement bicycle intended for individual movement The device of the invention has the advantage of being very comfortable thanks to its modular structure with high clearance which is articulated like a pair of scissors. Its advantageously tubular frame is formed by two telescopic arms arranged in the form of: X, which are articulated on a pivot made up of two circles which fit together at the time of use or which are also easily disengaged for storage. novelty forms an extremely practical device for its usefulness thanks to its two wheels with a generally large diameter much greater than that of rollerbladers or other similar devices but of a very compact footprint very appreciable for moving on the sidewalks and then in terms of storage in addition to be easily

  transportable over the shoulder or in a travel bag.

  By its novelty: this invention becomes the essential equipment for all city dwellers for their individual trips as much as the device of the invention

  has two popular luggage racks for shopping.

  For the attention of sports people or trail runners in all terrain, the ground clearance of the device as well as its suspension make it possible to circulate off piste or on all trails. In addition, each time this device must be transported, its lightness will be much appreciated. The cycle of the invention provided with two folding footrests at the rear wheel and the front wheel opens up new outlets in acrobatic sports and

  other disciplines in addition to very pleasant leg movements for inertia.

  The device of the invention has standard inertia brakes for bikes on each wheel

  which is synonymous with safety and longevity since referenced in cycling.

  All models of standard wheels are adaptable to the cycle of the invention starting from a very small diameter such as that of rollerbladers including everything that equips s s bicycle in general including wide s for sablo terrain nneux

  including an adaptation of ski boards for all kinds of sliding: seas and ices etc.

  At the dawn of the third millennium means of transport are as numerous as they are varied, particularly in public transport, and this for the greatest

passenger joy.

  The high performance of vehicles in general added to the quality of the road network places all cities in Europe and elsewhere at an accelerator. All of this is very beautiful, but there is a shadow on the table: it is individual travel in urban areas. Every day, a significant number of people have to reach their place of work or make urban journeys where suction cars and others prohibit parking after causing huge traffic jams and o public transport.

common do not pass.

  Walking is an excellent sport but preferably in the open air countryside

  and in this case especially not cluttered with luggage ..

  But to go to work or to go shopping you don't usually hang out

  So how do you do it? and where does the solution exist?

  Motorized two-wheeled vehicles are a big strain on the budget of many city dwellers who already own one or more vehicles per family, in addition to posing the problem of space. The solution goes through the cycle of the invention which fits easily in the trunk of the vehicle. '' a vehicle to easily store in a closet or storage room or in a waiting room housed in a bag after being a precious help to move

  quickly without a car and far from public transport stops.

  In addition without making a lot of effort thanks to the wheels of a large diameter although generally less than that of a bicycle for reasons of congestion this disengageable cycle

  is easily as fast as a runner enough to make an excellent average.

  To the delight of consumers, modern life places increasingly large places at our disposal which often cannot be reached without a long walk before planning another one each time. it is a station hall

  or from an airport or even an exhibition location or other events.

  The device of the invention is intended to move smoothly in all public places as in the sometimes interminable corridors inside certain buildings and once folded it does not bother anyone in an elevator or in public transport Many city dwellers try to use the bicycle for urban journeys but its storage at destination: such as the office or the workshop etc ... and its weight if there are narrow stairs or corridors etc. make this individual means of transport very unpopular In addition, the bicycle is not very advisable for the elderly because of the extreme vigilance and flexibility that must be shown in urban traffic. The cycle of the invention is accessible to all from the smallest to the largest. The sitting position is similar to that of a comfortable motorcyclist or rider. When you are stationary with your feet flat on the ground, the device becomes useful for taking rest. Like all roller-skaters or scooters, the device of the invention is authorized on sidewalks far from the danger of vehicles but with, in addition, obvious safety measures which are of interest to the public authorities responsible for regulating city traffic The first safety factor lies in the effectiveness of braking on two wheels. The second comes from the small wheelbase of the invention 's cycle, which makes it easy to squeeze among pedestrians. The user's seat on the saddle adjustable at its height as well as for the level of the handlebars places it in an attitude of safe predisposition to react favorably to any emergency stop. This reassuring safety for pedestrians

  far exceeds that non-existent of the many rolling stock on the sidewalks.

  The structure of the cycle of the invention which takes the form of a pair of scissors challenges by its simplicity what surpass all that exists in this field More concretely two telescopic arms are articulated on an axis which is similar to a pivot formed by two discs: one with female sockets and the other with male sections intended to fit into a geometrical position which is opposite to that adopted during use to disengage as quickly in the other way

for folding purposes.

  The discs forming the pivot are used on the bearing surface of the rotary movement in order to reinforce its solidity in a saving of weight which one would not obtain using a

standard hub.

  These discs are fixed on the side of the two arms which form the chassis which is similar to a: X articulated this application allowing the sliding of the saddle carrying tube or that which retains the handlebars in so-called mechanical conditions

  favorable in addition to decrease the deadweight.

  The device of the invention is intended primarily for individual transport useful or professional thanks to the large diameter of its wheels in its standard version which allows it to evolve on all kinds of roads, even deformed where everything that looks like a scooter equipped with small wheels is prohibited because impossible and dangerous. The dawn of the third millennium saw the fabulous market for scooters and their derivatives fade away because the use of small wheels remains limited to short routes rather fun than practical even if with great equipment and at the price of a intensive training

  rollerbladers are still popular in cities.

  Many city dwellers have been forced to bend to this kind of movement in built-up areas, especially since industrialists who are very aware of the problem manufacture roller skates with large diameter wheels and which detach themselves from the shoe. The invention takes into account the practical and useful aspect for all ages of the detachable cycle by favoring user comfort thanks to the modular suspension and long travel without forgetting the playful aspect by means notably of the height adjustment of the saddle and the handlebars to obtain personalized comfort This comfort is also obtained by the diameter of the wheels which in the standard version is approximately SO% smaller than that of conventional bicycle wheels in order to better absorb the roughness of the roadways while limiting the risks of frontal falls which

  is not at all the case with small wheels like scooters and derivatives.

  Experience proves that from a certain diameter of wheels like those used in light trailers, among other references, it is possible to envisage very long journeys without much difficulty, while specifying that the quality of the bearings and their

  scope is not unrelated to these performances.

  The structure in: X articulated of the chassis of the invention allowing the adaptation of this category of wheels the inertia of the device is very easy for the user first on flat ground and under these conditions some movements of legs without making d efforts will suffice

  to quickly reach a good speed of movement.

  Another very important factor is intended to contribute to the inertia of the device of the invention: it is the steering wheel located at the rear and whose orientations during movements added to the swings from left to right of the user

  contribute to the progression of the movement speed.

  All the components of the device of the invention are commercially available and the simplicity of the chassis which does not involve special materials leads to a cost of

attractive manufacturing.

  The idea of being transported by means of a machine operated by the user himself dates back to the 17th century. In 1639 we saw in Paris a four-wheeled vehicle powered by two pedals invented by

Richard doctor at La Rochelle.

  Several tests followed, but it was necessary to arrive in 1816 to find the "balance bike"

  from the Baron de Drais the first machine from which the bicycle came out.

  The "balance bike" included a horizontal board mounted on two wheels one behind the other. The front wheel was steered and the aircraft was propelled by taking

support on the ground with the feet.

  This was only the origin of the scooter.

  Later we adapted pedals to the front wheel which became driving and steering.

  The velocipede was born. He perfected himself more and more: the driving wheel became lighter and taken

  a very large diameter compared to the rear wheel.

  In 1880 it was the rear wheel that was made to drive by means of a chain and an overdrive crankset, the front wheel remaining steering. Subsequently the seat was placed at the rear which ensured more of stability to the rolling apparatus The invention of the pneumatic ones that of the light rims and various accessories led to the current bicycle which became an individual means of transport

an object of sport or tourism.

  The addition of a low power motor transformed the bicycle into a moped The bicycle succeeded the bicycle with uneven wheels built in France in 1885 by the worker Michaux inventor of the pedal and perfected by the engineer Truffaut who moreover had the idea of hollow rims The first bicycle with rear wheel drive was built in Great Britain in The free wheel bicycle appeared in the early twentieth century to lead

  quickly on the popularization of the current standard bicycle.

  The detachable cycle of the invention takes into account, to facilitate its inertia, first the qualities of wheels which contribute to favorable circulation thanks to a certain diameter.

  and has their bearing ranges well known to facilitate rotation.

  In such conditions a good inertia of the device will be obtained by movements of the legs by resting on the ground with the feet and accompanying this action with the inclinations of the body from left to right like a skater In this configuration to easily reach the speed of a runner

  the use of a crankset remains completely superfluous even on the climbs.

  The device being advantageously fitted with standard wheels: the braking exerted on the rims on long descents will not cause abnormal wear as is the case whenever the inertia brake is exerted on the scooter wheels or derivatives The device of the invention is intended to move at so-called average speeds except downhill or on the occasion of sporting competitions, the so-called fast speeds being more particularly intended for bicycles fitted with pedals The device of the invention receives a electric or thermal motor placed from

  preferably on the support arm of the rear steering wheel.

  The electric motor, preferably low voltage, generally the size of a battery-powered electric drill, is removable for easy recharging. One end has a linear movement device to come into contact with the wheel each time the switch is pressed. located at the level of the handlebar The device of the invention is designed to receive all the ranges of saddle available

in trade.

  The principle of the long travel suspension of the device consists in preferably placing a compression spring between the arms of: X above the level of the axis of rotation in one application and below in another application and above and at below in a third application In another application the compression or tension spring is replaced by a shock absorber. The location of these lines of suspensions, the length of which is often supplemented by a removable tensioner to facilitate folding is adjustable in length depending on the load or by means of positioning on the arms of the articulated X In one of the applications of the invention for information only and not for information and in FIG: l; the bicycle of the invention takes the form of a pair of scissors or an: X which is articulated

on a detachable pivot.

  One of the peaks of: X receives a height-adjustable saddle. The other has a sliding handlebars equipped with brake controls The base receives two standard wheels, one of which is steered behind the direction of travel A tension cable fitted with a shock absorber or a spring connects the arms of: X either above the level of the axis or below or in double effect in a third application These relays between the arms are intended for the flexibility of the suspension by means of a large clearance and adjustment in length then at the different positions on the arms of: X Removable or folding footrests are fixed at the front wheel hubs

  and rear for passenger comfort.

  All the wheels fitted with rims comprising a standard braking surface compatible with conventional brake pads are advantageously preferred in the mounting of the device of the invention In FIG. 2; the cycle of the invention is folded after being dislodged from its axis by a simple rotational movement of the arms of the: X. The wheels are placed one on top of the other like tennis rackets. The tube which holds the handlebar is retracted in the same way as that of the saddle in order to limit the bulk. The device is ready to be housed in a

  travel bag or to be carried over the shoulder or under the arm.

  In FIG .. 3. the cycle of the invention is equipped with a removable electric motor operating with electric batteries housed in the casing of this motor which facilitates the recharging of these rechargeable plaice because this motorization is reputed to be light In another application the electric batteries are housed in the device's slide frame. In FIG. 4 and S: the removable hub of: X; is formed by two discs whose surface contributes to the solidity while the lights and the pistons are used for the casing In FIG. 6 the carrying fork of the front wheel is deliberately eccentric in one of the applications of the invention in order to place this wheel in line with the wheel

rear director.

  More concretely and in FIG .. 1; (1) is the standard saddle. - (2) the telescopic arm carrying the saddle and sliding in the arm (23). - (3) is the compression spring fixing ring (4) connected to a race control device (5) and to a cable (6) housed

in the ring (37).

  The marks (7) (8) and (11) form the removable and orientable handlebar for folding thanks to the pivot (9) which is fixed by a collar (12) on a sleeve (13) adapted at the end of the telescopic tube (14 ) sliding in the arm (39) and locked by the device (56) The tube (39) forms one of the arms of: X; It retains at its base the fork (40) and (30) carrying the wheel (33) and folding footrests (29) and (32) The top of the fork has in this end a tube (27) which rotates in two bearings (28) and (25) which are fixed to the base of the tube (39) in order to

  allow the directional rotation of the fork (40).

  1 5 The left-right orientation of the fork (40) and (30) by means of the handlebar assembly (8) is used to steer the device. In order to achieve this: the steering column (14) slides in a tube (58) which it drives in its rotary movement This tube (58) is fixed in the rod (27) by an axis (26). This application makes it possible to orient the device under favorable mechanical conditions The tube (23 ) forms the other arm of: X; and receives the disc (35) forming part of the detachable means for nesting by a simple rotary movement in the other part (34) fixed on the arm (39) The top of the tube (23) receives a standard clamping device (57) intended to adjust the seat height At its base, the tube (23) receives a fork (20) carrying the wheel (16) and folding footrests (20) and (17) in addition to a brake caliper standard (21) whose flexible cable (24) joins the brake control (1 0) The device advantageously receives two luggage carriers, one removable (15) located on the steering column (14) because the latter s' slightly inclined to orient the cycle and the other located at the rear at the level of the saddle (38) and comprising two mooring devices more especially for bulky packages In FIG. 2: the device is folded ready to be stored or transported. The wheels (16) and (33) are placed one on the other to limit the size. In an other

  storage application they are stored opposite one another.

  The steering column (14) and the saddle support arm are retracted as much as possible to reduce the overall height. The hub discs (35) and (34) are disengaged Still in the interests of small dimensions, the removable luggage carrier (15) is

dislodged from its housing.

  The handlebar (8) is placed in the direction of the steering column (14); and the handles

(11) and (7) returned.

  1 0 In FIG ... 3: the device receives a removable electric motor (44) provided with electric batteries (46) and a switch (45) connected to a contactor (41) located on the handlebars A suitable wheel ( 43) provided with a linear rotary thrust on a transmission shaft (61) comes into contact with the wheel for its motorization (33) as soon as the contactor (4I) is pressed to withdraw instantly as soon as this closure is closed 1 5 switch; This motor is easily dislodged by the members (47) and (42) in FIG. 4; the discs (36) and (35) of the hub are seen in profile fixed on the arms of: X A FIG.5; the same discs are seen from the front on the same arms (39) and (23) In one of these flanges (36) are made lights (55 and 54) in the form of a half

  circle made in the perimeter of this flange.

  Holes (53) and (62) whose diameter is compatible with the discs (48) and (49) are intended for the passage of these discs when the two flanges (35) and (36) are pressed one against the other It will suffice with a simple rotational movement in an opposite direction between the masks to engage the discs (48) and (49) behind the flange (36) thanks to their supports (51) and (52) integral with the flange ( 35) and their diameter smaller than that of the holes (53) (62) but perfectly compatible with the thickness of the lights (55) and (54) The use of these of these flanges (36) and (35) is a principle well known in the industry In the invention this application avoids the use of an axis which would pass through it through the tubes (23) and (39) which would prevent the telescopic arms (14) from sliding and

  (2) in good conditions while limiting the dead weight.

  Nevertheless, this technique is applicable in the invention to FIG. 6: the arm (23) is fixed on a point (60) of the fork (l 9) carrying the wheel (l 6) or ski; in order to be perfectly in line with the steering wheel (33) The device is fitted with ski boards (67) and (64) connected to the forks (l9) and (40) for all kinds of sliding: snow or sea (66 ) (68) and (65) are quick attachments with rotary limit switches. (69) and (70) are the removable and folding footrests. In the application of the invention, the use of the flanges (36) and (3 5) advantageously comprising a small thickness in favor of the diameter makes it possible to have a very small deviation on the straight line which is more or less desirable in the alignment of the

wheels.

  In one application of the invention, these half-moon shaped flanges are fixed on edge above and above the tubes, taking into account that the rotation of the arms (23) and (39) is only a few tens of degrees at the axis without carrying

  prejudice to a very good suspension ..

Claims (4)

claims   1-: Bicycle of light structure by its design in the form of a removable scissor with inertial or motorized movement characterized by the fact that it comprises two tubes (23) and (39) which are articulated on an axis formed by two flanges ( 36) and (35) which fit or disengage by a simple rotary movement to separate the tubes of which they are integral for storage or use according to demand 2-: Device according to claim: 1; characterized by the fact that one top of these articulated X-shaped tubes receives a sliding tube (2) carrying a saddle (1) and the other top another sliding tube provided with a handlebar (8) the base of this chassis in the form of: an articulated X being intended to receive two carrying wheels, one of which is steerable and sometimes driving   Device according to claims: 1 and 2; characterized by the fact that the   base of the tubes (23) and (39) is provided with forks (19) and (40) intended mainly to receive wheels of a diameter compatible with large hikes which wheels are provided with rims whose sides are in harmony with a double braking (21) standards added to the fact that the device of the invention can receive in addition all the ranges of wheels without limit of diameters or models adaptable to all kinds of terrain in which the invention must evolve including   the adaptation of ski boards for all kinds of sliding: snow and sea.   3-: Device according to claim: 1; characterized by the fact that the steering wheel (33) is at the rear of the direction of travel which has the effect of contributing to the inertia of the device each time the user advances the device by a movement of leg taking support with the feet on the ground while bowing from left to right with the example of a   skater and favor orientation on snow.   4-: Device according to claim: 1; characterized by the fact that the forks (19) and (40) receive folding footrests intended to increase the comfort of the passenger in addition to leading to various sports applications -: Device according to claim: 1; characterized in that in one of the applications of the invention a thermal or electric motor (44) (46) (61) (43) and (41) is used to propel the device. This motor is removable (42) and (47); moreover the fork (19) receives the arm   (23) on a point (60) in one of the applications of the invention.   6-: Device according to the preceding claims characterized in that   the handlebar (8) is orientable and removable for easy storage as is the luggage carrier (15) while the luggage carrier (38) is advantageously retractable as is the suspension tensioner (s) (3) (4) (5 ) and (6) fixed above the axis of rotation in one application below this axis in another application and in