WO2016198709A1 - Foldable bicycle - Google Patents
Foldable bicycle Download PDFInfo
- Publication number
- WO2016198709A1 WO2016198709A1 PCT/ES2016/070324 ES2016070324W WO2016198709A1 WO 2016198709 A1 WO2016198709 A1 WO 2016198709A1 ES 2016070324 W ES2016070324 W ES 2016070324W WO 2016198709 A1 WO2016198709 A1 WO 2016198709A1
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- Prior art keywords
- bar
- frame
- bicycle
- saddle
- plane
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Classifications
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- 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
- B62K15/00—Collapsible or foldable cycles
Definitions
- the following invention refers to a folding bicycle, being of the type and with the structural configuration of conventional, racing, road or mountain bicycles, and that being able to be folded can be transported in a normal motor vehicle and thus allow to enjoy anywhere the characteristics of lightness, rigidity and stability of a racing or road bike or the robustness and safety of a mountain bike.
- a folding bicycle being of the type and with the structural configuration of conventional, racing, road or mountain bicycles, and that being able to be folded can be transported in a normal motor vehicle and thus allow to enjoy anywhere the characteristics of lightness, rigidity and stability of a racing or road bike or the robustness and safety of a mountain bike.
- the advantage of occupying a smaller space it is facilitated not only its transport, but also its storage in a normal house when it is not used.
- a folding bicycle which can be road, racing or mountain.
- document ES 2 297 420 discloses a pivoting folding of the structure relative to the rear wheel with respect to the main frame, as well as a device for collecting the transmission chain.
- document ES 1 078 646 discloses a folding bicycle, which is characterized by presenting the frame in the form of a half arch and by folding the rear wheel, without being disassembled, under the lower part of said frame in the form of half arch.
- FIG. 2 a folding bicycle (figure 2) is described which, when used, maintains the structural configuration and geometry, demonstrated as optimal, of the conventional racing, road or mountain bicycles (figure 1) unchanged, thus preserving invariable dynamic qualities and essentially sporting character, but that, when not used, allows to reduce the space occupied ( Figure 8).
- the space saving achieved is due only to the folding nature of the frame object of the present patent, not to the use of smaller wheels.
- the objective of maintaining the dynamic characteristics of the bicycle forces to keep the size of the wheels of conventional bicycles unchanged.
- the bicycle object of the invention like the conventional ones, has a frame with an anterior bar for mounting the fork of the front wheel and handlebar, a rear bar for coupling the saddle and integral with the connecting structure with the axle of the saddle.
- the rear wheel both of which are joined by an upper bar and a lower bar, so that, as shown in figure 2: the upper bar of the frame, integral with the front bar, is fixed to the rear bar of the saddle by means of union that constitute a removable articulation, and;
- the lower bar of the frame is fixed to the front mounting bar of the fork of the front wheel and handlebar and to the rear bar for coupling the saddle by articulated joining means.
- the removable joining means of the upper bar of the frame to the saddle coupling bar are defined by a first element integral with the saddle coupling bar provided with a through hole and arranged in proximity to the saddle. its upper part and a second element, of top of the upper bar of the frame, in the form of "U”, with its wings provided with respective holes, and between whose wings the first element fits and fixes by means of a threaded pin arranged in their matching holes.
- Figure 1 Shows an elevation view of a conventional bicycle, in this case racing.
- Figure 2. Shows an elevation view of a bicycle equipped with the folding means object of the invention, which are essentially based on an articulated and removable joint of the upper bar of the frame with the rear bar coupling of the saddle and and two articulated joints located at both ends of the lower bar that join the same with the front steering bar and with the rear bar of the saddle coupling.
- Figure 3 Shows an elevation view of the component parts of the folding bicycle frame, relative to the upper bar secured to the front steering bar, the rear coupling bar of the saddle integral with the mounting fork of the rear wheel and other elements and the lower bar.
- Figure 4 Shows a perspective view in detail of the first element of the removable articulation, integral with the rear coupling bar of the saddle and to which the upper bar of the frame will be joined.
- Figure 5 Shows a perspective and detail view of the second element of the demountable articulation, integral with the upper bar and of the latter, and to which the rear coupling bar of the saddle will be attached.
- Figure 6. Shows a perspective view of the fixation of the upper bar of the frame to the rear coupling bar of the saddle.
- Figure 7. Shows a sectional view of the fixation relative to the previous figure.
- FIG. 8 Shows an elevation view of the bicycle in its folded position.
- the front wheel is also shown, separated from the folded assembly for clarity of the drawing, but which can be stored next to said folded assembly or kept separately.
- the structure of the folding bicycle 1 is embodied so that the upper bar 2 is joined, by welding or the like, to the steering rod 3 and will be joined to the rear bar 4 of the saddle through means of removable union 6, while said bar 4 of the saddle is fixed to the axis of the pedals and the support structure of the rear wheel, as in a conventional bicycle.
- the removable connecting means 6 of the upper bar 2 with the seat bar 4 can be embodied by a first element 8 projecting radially of the seat bar 4 and provided with a through hole 9 and a second element 10 of "U" shaped end, with holes 11 on its wings, of the end of the upper bar 2, so that when the first element 8 protrudes between the wings of the second element 10 and the holes 11 coincide with the hole 9, of both, it will suffice to introduce a threaded pin 12 to materialize its fixation.
- the lower bar 5 will be joined, through respective articulations 15, to the steering rod 3 and to the bar of the saddle 4, through small lugs 7 integral with it.
- the folding of the bicycle is facilitated.
- the essential characteristic of the new folding bicycle 1 with respect to a conventional bicycle is that three integral joints, usually made by welding, of the bars or tubes forming the frame, are replaced by three joints.
- the axis of rotation of these joints is perpendicular to the plane that makes up the frame, so that all folding / unfolding movements always occur in the same plane of the frame of the bicycle, making its length decrease in its folding.
- the frame When the bicycle is deployed, as it is used, the frame constitutes a triangular and isostatic structure in the plane, optimizing the use of the resistant characteristics of the elements of the frame, as happens in a conventional bicycle.
- the threaded pin 12 will be similar to the one used in many bicycles, with a threaded end, to screw a nut in it, and with a quick closing system at the other end, but, logically, with the appropriate length and diameter dimensions .
- the removable connection assembly 6 of the upper bar 2 with the seat bar 4, when assembled, constitutes, in principle, a joint of free rotation as the other two joints 15, so that the rigid, triangulated and isostatic structure is completed. in the plane already described.
- the thickness of the lugs of the element 10, which are made of sheet metal or similar material, is dimensioned so that they have a certain flexibility. In this way, the small space between said lugs and the sides of the element 8 welded to the seat tube, is it reduces as the threaded pin with quick closing system is tightened, until the assembly is solidly joined, without gaps and minimizing the risk of loosening the threaded nut on the end of the pin.
- the folding process of the frame is carried out in the plane of the bicycle, allowing to significantly reduce the length of the bicycle, while in the unfolding operation it will act in a reverse way to that described.
- a textile cord can be incorporated, so that one of its ends would be joined to the previous bar 3 and the other end would be topped by a small spherical piece. Said cord would pass through the hole of a ring welded to the rear bar 4 at a point near the joint element 8 and below it. The diameter of the orifice of said ring would be smaller than that of the spherical part of the bead of the bead so that said spherical piece could not pass through the ring.
- the length of the cord would be such that it was almost fully extended with the bicycle deployed. In this way, disassembling the pin 12 to fold the bicycle would prevent a possible unwanted removal of the front part of the bicycle (since it would be prevented by the fact that the spherical part can not pass through the ring) and, at the Once, with the bicycle already folded, it would be easier to keep it folded by knotting, or holding by means of some other system, the remaining excess of the cord to the rear bar 4.
- a textile belt equipped with "sailboat” type elements or similar, could be incorporated to keep the front fork and the seat tube 4 close together.
- These solutions are very light weight, do not damage the surface of the elements that link, allow a gradable approximation of the elements that are linked and use very economic and common elements in the market, but could be any other.
- the seatpost can be inserted inside the upper bar 2 and fastened with the same threaded pin 12 joining the upper bar 2 with the seat bar 4 when the bicycle is unfolded.
- the inside diameters of the upper bar 2 and the bar of the saddle 4 must be the same (which is common in many bicycles), in the central part of the element attached to the rear end of the upper bar 2 must be made a hole of diameter equal to said inner diameter of the upper bar 2 and in the seat post 13 a transverse hole is to be made that allows the insertion of the removable threaded pin 12.
- said threaded pin 12 is also used to hold the seatpost 13.
- the different elements front wheel and folded assembly of the rest of the bicycle
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Motorcycle And Bicycle Frame (AREA)
Abstract
Disclosed is a foldable bicycle that maintains the geometrical and structural configuration of conventional race, road or mountain bikes, and which comprises a frame formed by four bars: an upper bar that joins a handlebar and the upper part of a seat bar; a lower bar that joins the handlebar and the lower part of the seat bar; a handlebar and a seat bar, such that the upper bar is secured to the seat bar by an articulated and dismantlable joint having an axis perpendicular to the plane of the bicycle and the lower bar is secured to the handlebar and to the seat bar by respective articulated joints that also have an axis perpendicular to the plane of the bicycle, the movements of folding and unfolding being produced in the plane of the bicycle.
Description
BICICLETA PLEGABLE DESCRIPCIÓN OBJETO DE LA INVENCIÓN FOLDING BICYCLE DESCRIPTION OBJECT OF THE INVENTION
La siguiente invención, según se expresa en el enunciado de la presente memoria descriptiva, se refiere a una bicicleta plegable, siendo del tipo y con la configuración estructural de las bicicletas convencionales, de carreras, de carretera o de montaña, y que al poder ser plegada puede ser transportada en un vehículo automóvil normal y con ello permitir disfrutar en cualquier lugar de las características de ligereza, rigidez y estabilidad de una bicicleta de carreras o de carretera o de la robustez y seguridad de una bicicleta de montaña. Asimismo, al presentar, en su posición de plegada, la ventaja de ocupar un menor espacio, se facilita no sólo su transporte, sino también su almacenaje en una vivienda normal cuando no se usa. The following invention, as expressed in the wording of the present specification, refers to a folding bicycle, being of the type and with the structural configuration of conventional, racing, road or mountain bicycles, and that being able to be folded can be transported in a normal motor vehicle and thus allow to enjoy anywhere the characteristics of lightness, rigidity and stability of a racing or road bike or the robustness and safety of a mountain bike. Likewise, when presenting, in its folded position, the advantage of occupying a smaller space, it is facilitated not only its transport, but also its storage in a normal house when it is not used.
CAMPO DE APLICACIÓN SCOPE
En la presente memoria se describe una bicicleta plegable, la cual puede ser de carretera, carreras o montaña. In the present specification a folding bicycle is described, which can be road, racing or mountain.
ANTECEDENTES DE LA INVENCIÓN BACKGROUND OF THE INVENTION
Como es conocido las bicicletas convencionales de carreras, de carretera o de montaña, aunque distintas entre sí, tienen en común que a todas se les exige unas características de robustez, rigidez, ligereza y estabilidad a alta velocidad muy superiores que las que se exigen a las bicicletas plegables convencionales, destinadas mayoritariamente al uso urbano, a las que se exige sobre todo que ocupen el mínimo espacio posible una vez plegadas y que el proceso de plegado/desplegado sea lo más sencillo y rápido posible. As it is known, conventional racing, road or mountain bicycles, although different from each other, have in common that all of them are required to have characteristics of sturdiness, rigidity, lightness and stability at high speed that are much higher than those required conventional folding bicycles, mainly for urban use, which are required above all to occupy the minimum space possible once folded and that the folding / unfolding process is as simple and fast as possible.
Las prestaciones exigidas a las bicicletas de carreras, de carretera o de montaña, de robustez, rigidez, ligereza y estabilidad a alta velocidad se consiguen con el empleo de
materiales adecuados y con una configuración geométrica caracterizada por varios factores (dimensiones, ángulos, elementos estructurales, etc.), entre los que pueden destacarse sobre todo el empleo de ruedas de diámetro suficiente, una distancia entre ejes también suficiente y el empleo de un tipo de cuadro o bastidor con una configuración determinada, conocida habitualmente como "cuadro diamante" o de "doble triángulo" cuya estructura triangulada aporta una relación óptima entre rigidez y ligereza. The required performance of racing, road or mountain bikes, sturdiness, rigidity, lightness and stability at high speed are achieved with the use of suitable materials and with a geometric configuration characterized by several factors (dimensions, angles, structural elements, etc.), among which can be highlighted above all the use of wheels of sufficient diameter, a sufficient wheelbase and the use of a type of frame or frame with a specific configuration, commonly known as "diamond box" or "double triangle" whose triangular structure provides an optimal relationship between rigidity and lightness.
Por el contrario, las bicicletas plegables convencionales emplean normalmente ruedas de menor diámetro y un cuadro o bastidor basado frecuentemente en una única y gruesa barra principal partida, en algún punto intermedio de su longitud, con una robusta y pesada bisagra. Ambas características persiguen, sobre todo, facilitar el proceso de plegado/desplegado y reducir al máximo el espacio ocupado una vez plegadas. Dichas características implican reducir la rigidez, a menos que se empleen elementos muy gruesos, y por tanto pesados, así como reducir la estabilidad y seguridad a velocidades elevadas. In contrast, conventional folding bicycles typically use smaller diameter wheels and a frame or frame often based on a single, thick, split main bar, somewhere in between its length, with a sturdy, heavy hinge. Both characteristics seek, above all, to facilitate the folding / unfolding process and to reduce to a maximum the space occupied once folded. Said characteristics involve reducing rigidity, unless very thick, and therefore heavy, elements are used, as well as reducing stability and safety at high speeds.
Por otra parte, podemos considerar diferentes documentos de patente relativos a bicicletas plegables, y, así, podemos considerar los documentos ES 2 297 420; ES 2 430 463; ES 1 064 002 y ES 1 078 646, de forma que en el documento ES 2 297 420 se describe un plegado pivotante de la estructura relativa a la rueda posterior respecto del cuadro principal, así como un dispositivo de recogida de la cadena de transmisión. On the other hand, we can consider different patent documents related to folding bicycles, and, thus, we can consider the documents ES 2 297 420; ES 2 430 463; ES 1 064 002 and ES 1 078 646, so that document ES 2 297 420 discloses a pivoting folding of the structure relative to the rear wheel with respect to the main frame, as well as a device for collecting the transmission chain.
En el documento ES 2 430 463 se describe una bicicleta plegable, cuyo plegado se lleva a cabo respecto de su conjunto posterior y anterior en el mismo plano del cuadro o en un plano paralelo. In document ES 2 430 463 a folding bicycle is described, whose folding is carried out with respect to its rear and previous assembly in the same plane of the frame or in a parallel plane.
En el documento ES 1 064 002 se describe una bicicleta plegable, la cual en proximidad al extremo posterior de la barra principal presenta una pareja de piñones engranados entre ellos y asociados a la barra de soporte del sillín y a la horquilla de la rueda posterior, de forma que el plegado se produce abatiendo ambos hacia la parte delantera. In document ES 1 064 002 a folding bicycle is described, which in proximity to the rear end of the main bar has a pair of pinions intermeshed and associated with the seat support bar and the fork of the rear wheel, way that folding occurs by folding both towards the front.
Finalmente en el documento ES 1 078 646 se describe una bicicleta plegable, la cual se caracteriza por presentar el cuadro en forma de medio arco y por el plegado de la rueda posterior, sin ser desmontada, bajo la parte baja del citado cuadro en forma de medio arco.
DESCRIPCIÓN DE LA INVENCIÓN Finally, document ES 1 078 646 discloses a folding bicycle, which is characterized by presenting the frame in the form of a half arch and by folding the rear wheel, without being disassembled, under the lower part of said frame in the form of half arch. DESCRIPTION OF THE INVENTION
En la presente memoria se describe una bicicleta plegable (figura 2) que, cuando se usa, mantiene invariables la configuración estructural y geometría, demostradas como óptimas, de las bicicletas convencionales de carreras, de carretera o de montaña (figura 1), conservando así invariables sus cualidades dinámicas y su carácter esencialmente deportivo, pero que, cuando no se usa, permite reducir el espacio ocupado (figura 8). El ahorro de espacio que se consigue obedece sólo a la naturaleza plegable del cuadro objeto de la presente patente, no al empleo de ruedas de menor tamaño. El objetivo de mantener las características dinámicas de la bicicleta, obliga a mantener invariable el tamaño de las ruedas de las bicicletas convencionales. Para posibilitar el plegado del cuadro, se sustituyen tres uniones solidarias de las barras o tubos constituyentes del cuadro de la bicicleta convencional, habitualmente realizadas mediante soldadura, por tres articulaciones cuyo eje de rotación es perpendicular al plano de la bicicleta, siendo dos de dichas articulaciones convencionales y la tercera desmontable. In the present specification a folding bicycle (figure 2) is described which, when used, maintains the structural configuration and geometry, demonstrated as optimal, of the conventional racing, road or mountain bicycles (figure 1) unchanged, thus preserving invariable dynamic qualities and essentially sporting character, but that, when not used, allows to reduce the space occupied (Figure 8). The space saving achieved is due only to the folding nature of the frame object of the present patent, not to the use of smaller wheels. The objective of maintaining the dynamic characteristics of the bicycle, forces to keep the size of the wheels of conventional bicycles unchanged. To enable the frame to be folded, three soldered joints of the bars or tubes constituting the frame of the conventional bicycle are replaced, usually by welding, by three joints whose axis of rotation is perpendicular to the plane of the bicycle, two of said joints being conventional and the third removable.
Todos los movimientos de plegado/desplegado se producen siempre en el mismo plano del cuadro de la bicicleta, lográndose al plegar la bicicleta que la longitud máxima de su estructura, que corresponde aproximadamente a la distancia entre los ejes de las ruedas delantera y trasera, disminuya en una longitud próxima a la longitud de la barra superior (figuras 2 y 8). All folding / unfolding movements always occur in the same plane of the bicycle frame, being achieved by folding the bicycle that the maximum length of its structure, which corresponds approximately to the distance between the axes of the front and rear wheels, decreases in a length close to the length of the upper bar (figures 2 and 8).
La bicicleta objeto de la invención, al igual que las convencionales, presenta un cuadro con una barra anterior de montaje de la horquilla de la rueda anterior y manillar, una barra posterior de acoplamiento del sillín y solidaria con la estructura de unión con el eje de la rueda posterior, quedando ambas unidas por una barra superior y una barra inferior, de forma que, tal como se representa en la figura 2: la barra superior del cuadro, solidaria con la barra anterior, se fija a la barra posterior de acoplamiento del sillín por unos medios de unión que constituyen una
articulación desmontable, y; The bicycle object of the invention, like the conventional ones, has a frame with an anterior bar for mounting the fork of the front wheel and handlebar, a rear bar for coupling the saddle and integral with the connecting structure with the axle of the saddle. the rear wheel, both of which are joined by an upper bar and a lower bar, so that, as shown in figure 2: the upper bar of the frame, integral with the front bar, is fixed to the rear bar of the saddle by means of union that constitute a removable articulation, and;
la barra inferior del cuadro se fija a la barra anterior de montaje de la horquilla de la rueda anterior y manillar y a la barra posterior de acoplamiento del sillín por unos medios de unión articulada. the lower bar of the frame is fixed to the front mounting bar of the fork of the front wheel and handlebar and to the rear bar for coupling the saddle by articulated joining means.
En una ejecución preferente de la invención, los medios de unión desmontable de la barra superior del cuadro a la barra de acoplamiento del sillín se definen por un primer elemento solidario a la barra de acoplamiento del sillín dotado de un orificio pasante y dispuesto en proximidad a su parte superior y un segundo elemento, de remate de la barra superior del cuadro, en forma de "U", con sus alas provistas de respectivos orificios, y entre cuyas alas encaja y se fija el primer elemento por medio de un pasador roscado dispuesto en sus orificios coincidentes. In a preferred embodiment of the invention, the removable joining means of the upper bar of the frame to the saddle coupling bar are defined by a first element integral with the saddle coupling bar provided with a through hole and arranged in proximity to the saddle. its upper part and a second element, of top of the upper bar of the frame, in the form of "U", with its wings provided with respective holes, and between whose wings the first element fits and fixes by means of a threaded pin arranged in their matching holes.
Asimismo, la unión articulada de la barra inferior del cuadro a la barra anterior de montaje de la horquilla de la rueda anterior y manillar queda bajo la fijación solidaria de la barra superior del cuadro a dicha barra anterior y la unión articulada de la barra inferior a la barra posterior de acoplamiento del sillín se realiza mediante otra unión articulada similar a la primera. Para complementar la descripción que seguidamente se va a realizar, y con objeto de ayudar a una mejor comprensión de las características de la invención, se acompaña a la presente memoria descriptiva, de un juego de planos, en cuyas figuras de forma ilustrativa y no limitativa, se representan los detalles más característicos de la invención. BREVE DESCRIPCIÓN DE LOS DISEÑOS Likewise, the hinged connection of the lower bar of the frame to the front mounting bar of the fork of the front wheel and handlebar is under the joint fixing of the upper bar of the frame to said front bar and the articulated joint of the lower bar to The rear coupling bar of the saddle is made by another articulated joint similar to the first one. To complement the description that will be made next, and in order to help a better understanding of the characteristics of the invention, this descriptive report is accompanied by a set of plans, in whose figures an illustrative and non-limiting way , the most characteristic details of the invention are represented. BRIEF DESCRIPTION OF THE DESIGNS
Figura 1. Muestra una vista en alzado de una bicicleta convencional, en este caso de carreras. Figura 2. Muestra una vista en alzado de una bicicleta dotada de los medios de plegado objeto de la invención, los cuales se basan, esencialmente, en una unión articulada y desmontable de la barra superior del cuadro con la barra posterior de acoplamiento del sillín y
y dos uniones articuladas situadas en ambos extremos de la barra inferior que unen la misma con la barra anterior de dirección y con la barra posterior del acoplamiento del sillín. Figure 1. Shows an elevation view of a conventional bicycle, in this case racing. Figure 2. Shows an elevation view of a bicycle equipped with the folding means object of the invention, which are essentially based on an articulated and removable joint of the upper bar of the frame with the rear bar coupling of the saddle and and two articulated joints located at both ends of the lower bar that join the same with the front steering bar and with the rear bar of the saddle coupling.
Figura 3. Muestra una vista en alzado de las piezas conformantes del cuadro de la bicicleta plegable, relativas a la barra superior solidaria a la barra anterior de dirección, la barra posterior de acoplamiento del sillín solidaria con la horquilla de montaje de la rueda posterior y otros elementos y la barra inferior. Figure 3. Shows an elevation view of the component parts of the folding bicycle frame, relative to the upper bar secured to the front steering bar, the rear coupling bar of the saddle integral with the mounting fork of the rear wheel and other elements and the lower bar.
Figura 4. Muestra una vista en perspectiva y en detalle del primer elemento de la articulación desmontable, solidario a la barra posterior de acoplamiento del sillín y al que se unirá la barra superior del cuadro. Figure 4. Shows a perspective view in detail of the first element of the removable articulation, integral with the rear coupling bar of the saddle and to which the upper bar of the frame will be joined.
Figura 5. Muestra una vista en perspectiva y en detalle del segundo elemento de la articulación desmontable, solidario a la barra superior y de remate de la misma, y al que se unirá la barra posterior de acoplamiento del sillín. Figure 5. Shows a perspective and detail view of the second element of the demountable articulation, integral with the upper bar and of the latter, and to which the rear coupling bar of the saddle will be attached.
Figura 6. Muestra una vista en perspectiva de la fijación de la barra superior del cuadro a la barra posterior de acoplamiento del sillín. Figura 7. Muestra una vista seccionada de la fijación relativa a la figura anterior. Figure 6. Shows a perspective view of the fixation of the upper bar of the frame to the rear coupling bar of the saddle. Figure 7. Shows a sectional view of the fixation relative to the previous figure.
Figura 8. Muestra una vista en alzado de la bicicleta en su posición de plegada. Se muestra también la rueda delantera, separada del conjunto plegado para mayor claridad del dibujo, pero que puede guardarse junto a dicho conjunto plegado o guardarse aparte. Figure 8. Shows an elevation view of the bicycle in its folded position. The front wheel is also shown, separated from the folded assembly for clarity of the drawing, but which can be stored next to said folded assembly or kept separately.
DESCRIPCIÓN DE UNA REALIZACIÓN PREFERENTE DESCRIPTION OF A PREFERRED EMBODIMENT
A la vista de las comentadas figuras y de acuerdo con la numeración adoptada podemos observar cómo, a partir de una bicicleta de tipo convencional, de carretera, carreras o montaña, se conforma un nuevo cuadro que tiene como característica esencial que puede ser plegado a partir de dicha configuración convencional. Para identificar las barras, normalmente tubulares, que lo conforman, las denominamos de la siguiente manera: In view of the aforementioned figures and according to the numbering adopted we can see how, from a conventional bicycle, road, racing or mountain, a new frame is formed that has as an essential feature that can be folded from of said conventional configuration. To identify the bars, usually tubular, that comprise it, we denominate them in the following way:
> barra superior 2, que une la barra anterior 3 o de dirección, asociada al manillar 16,
y la parte superior de la barra del sillín 4; > upper bar 2, which joins the previous bar 3 or address, associated with the handlebar 16, and the upper part of the saddle bar 4;
> barra anterior 3 o de dirección, asociada al manillar 16 y a la horquilla de la rueda delantera 14; > front bar 3 or steering, associated with the handlebar 16 and the fork of the front wheel 14;
> barra posterior 4 o del sillín, asociada al sillín 13, que normalmente es regulable en altura, y a la estructura de soporte de la rueda trasera, y; > rear bar 4 or of the saddle, associated with saddle 13, which is normally adjustable in height, and with the supporting structure of the rear wheel, and;
> barra inferior 5, que une la barra anterior 3 o de dirección y la parte inferior de la barra posterior 4 o del sillín. > lower bar 5, which joins the front 3 or steering bar and the lower part of the rear bar 4 or the saddle.
De esta forma, la estructuración de la bicicleta plegable 1 se materializa de manera que la barra superior 2 es solidaria, mediante soldadura o similar, a la barra de dirección 3 y se unirá a la barra posterior 4 del sillín a través de unos medios de unión desmontable 6, en tanto que dicha barra 4 del sillín es solidaria al eje de los pedales y a la estructura de soporte de la rueda trasera, al igual que en una bicicleta convencional. Los medios de unión desmontable 6 de la barra superior 2 con la barra del sillín 4 se pueden materializar por un primer elemento 8 saliente, en sentido radial, de la barra del sillín 4 y provisto de un orificio pasante 9 y un segundo elemento 10 de remate en forma de "U", con sendos orificios 11 en sus alas, del extremo de la barra superior 2, de manera que al encajar el primer elemento 8 saliente entre las alas del segundo elemento 10 y siendo coincidentes los orificios 11 con el orificio pasante 9, de ambos, bastará introducir un pasador roscado 12 para materializar su fijación. In this way, the structure of the folding bicycle 1 is embodied so that the upper bar 2 is joined, by welding or the like, to the steering rod 3 and will be joined to the rear bar 4 of the saddle through means of removable union 6, while said bar 4 of the saddle is fixed to the axis of the pedals and the support structure of the rear wheel, as in a conventional bicycle. The removable connecting means 6 of the upper bar 2 with the seat bar 4 can be embodied by a first element 8 projecting radially of the seat bar 4 and provided with a through hole 9 and a second element 10 of "U" shaped end, with holes 11 on its wings, of the end of the upper bar 2, so that when the first element 8 protrudes between the wings of the second element 10 and the holes 11 coincide with the hole 9, of both, it will suffice to introduce a threaded pin 12 to materialize its fixation.
Por otra parte, la barra inferior 5 se unirá, a través de respectivas articulaciones 15, a la barra de dirección 3 y a la barra del sillín 4, a través de unas pequeñas orejetas 7 solidarias a ella. Al materializar la unión a través de la citadas pequeñas orejetas 7 se facilita el plegado de la bicicleta. On the other hand, the lower bar 5 will be joined, through respective articulations 15, to the steering rod 3 and to the bar of the saddle 4, through small lugs 7 integral with it. By materializing the joint through the aforementioned small lugs 7, the folding of the bicycle is facilitated.
De esta forma, la característica esencial de la nueva bicicleta plegable 1 respecto de una bicicleta convencional es que se sustituyen tres uniones solidarias, habitualmente realizadas mediante soldadura, de las barras o tubos conformantes del cuadro, por tres articulaciones. In this way, the essential characteristic of the new folding bicycle 1 with respect to a conventional bicycle is that three integral joints, usually made by welding, of the bars or tubes forming the frame, are replaced by three joints.
El eje de rotación de dichas articulaciones es perpendicular al plano que conforma el cuadro, por lo que todos los movimientos de plegado/desplegado se producen siempre en
el mismo plano del cuadro de la bicicleta, logrando que su longitud disminuya en su plegado. The axis of rotation of these joints is perpendicular to the plane that makes up the frame, so that all folding / unfolding movements always occur in the same plane of the frame of the bicycle, making its length decrease in its folding.
Cuando la bicicleta está desplegada, en modo de ser usada, el cuadro constituye una estructura triangulada e isostática en el plano, optimizando el aprovechamiento de las características resistentes de los elementos del cuadro, tal como sucede en una bicicleta convencional. When the bicycle is deployed, as it is used, the frame constitutes a triangular and isostatic structure in the plane, optimizing the use of the resistant characteristics of the elements of the frame, as happens in a conventional bicycle.
La referida estructura triangulada e isostática del cuadro y el hecho de que las articulaciones sean de rotación simple con el eje siempre perpendicular al plano del cuadro, garantiza una adecuada resistencia frente a cualquier esfuerzo (tracción, compresión, cortante, flexión, torsión) en cualquier dirección y punto del cuadro. The aforementioned triangular and isostatic structure of the frame and the fact that the joints are of simple rotation with the axis always perpendicular to the plane of the frame, guarantees an adequate resistance against any effort (traction, compression, shear, bending, torsion) in any direction and point of the box.
Dichas articulaciones pueden ser del mismo tipo que las empleadas habitualmente en muchos sistemas de suspensión trasera de bicicletas de montaña, lo que garantiza su robustez y un coste asumible en la fabricación industrial. These joints can be of the same type as those commonly used in many rear suspension systems of mountain bikes, which guarantees its robustness and an affordable cost in industrial manufacturing.
Así, el pasador roscado 12 será similar al utilizado en muchas bicicletas, con un extremo roscado, para roscar en él una tuerca, y con un sistema de cierre rápido en el otro extremo, pero, lógicamente, con las dimensiones adecuadas de longitud y diámetro. Thus, the threaded pin 12 will be similar to the one used in many bicycles, with a threaded end, to screw a nut in it, and with a quick closing system at the other end, but, logically, with the appropriate length and diameter dimensions .
El conjunto de unión desmontable 6 de la barra superior 2 con la barra del sillín 4, cuando está montado constituye, en principio, una articulación de rotación libre como las otras dos articulaciones 15, por lo que se completa la estructura rígida, triangulada e isostática en el plano ya descrita. No obstante, a efectos de facilitar el montaje y desmontaje de esta articulación, mediante la introducción o extracción del pasador 12, conviene que exista una cierta tolerancia dimensional (algunas décimas de milímetro) tanto entre los diámetros de dicho pasador y de los orificios 9 y 11 que atraviesa, así como entre el elemento 10 del extremo posterior de la barra superior 2 y el elemento 8 soldado a la barra 4 del sillín. The removable connection assembly 6 of the upper bar 2 with the seat bar 4, when assembled, constitutes, in principle, a joint of free rotation as the other two joints 15, so that the rigid, triangulated and isostatic structure is completed. in the plane already described. However, in order to facilitate the assembly and disassembly of this joint, by inserting or removing the pin 12, it is convenient that there be a certain dimensional tolerance (a few tenths of a millimeter) both between the diameters of said pin and of the holes 9 and 11 passing through, as well as between the element 10 of the rear end of the upper bar 2 and the element 8 welded to the bar 4 of the saddle.
Para evitar que esas tolerancias lleguen a constituir unas holguras inadmisibles, se dimensiona el espesor de las orejetas del elemento 10, que son de chapa o material similar, de forma que tengan una cierta flexibilidad. De este modo, el pequeño espacio existente entre dichas orejetas y los lados del elemento 8 soldado al tubo del sillín, se
reduce a medida que se aprieta el pasador roscado con sistema de cierre rápido, hasta que el conjunto queda sólidamente unido, sin holguras y minimizando el riesgo de que se afloje la tuerca roscada en el extremo del pasador. En cuanto al proceso de plegado de la bicicleta, éste se inicia con el desmontaje del sillín 13 y de la rueda delantera 14, tal como se realiza de forma convencional, de forma que una vez desmontados el sillín 13 y la rueda delantera 14 se procederá a desmontar el pasador roscado 12 que une la barra superior 2 con la barra del sillín 4 y a continuación se procederá al plegado, propiamente dicho, de la estructura de la bicicleta, tal como se representa en la figura 8 de los diseños, en la que la rueda delantera, ya desmontada, se representa separadamente. To prevent these tolerances from reaching inadmissible gaps, the thickness of the lugs of the element 10, which are made of sheet metal or similar material, is dimensioned so that they have a certain flexibility. In this way, the small space between said lugs and the sides of the element 8 welded to the seat tube, is it reduces as the threaded pin with quick closing system is tightened, until the assembly is solidly joined, without gaps and minimizing the risk of loosening the threaded nut on the end of the pin. As for the folding process of the bicycle, this begins with the disassembly of the saddle 13 and the front wheel 14, as is done in a conventional manner, so that once the saddle 13 and the front wheel 14 have been disassembled, it will proceed to disassemble the threaded pin 12 that joins the upper bar 2 with the bar of the saddle 4 and then proceed to be folding, properly said, the structure of the bicycle, as shown in figure 8 of the designs, in which the front wheel, already disassembled, is represented separately.
Así, el proceso de plegado del cuadro se realiza en el propio plano de la bicicleta, permitiendo reducir notablemente la longitud de la bicicleta, en tanto que en la operación de desplegado se actuará de forma inversa a la descrita. Thus, the folding process of the frame is carried out in the plane of the bicycle, allowing to significantly reduce the length of the bicycle, while in the unfolding operation it will act in a reverse way to that described.
Para facilitar el plegado de la bicicleta, se puede incorporar un cordón textil, de forma que uno de sus extremos se uniría a la barra anterior 3 y el otro extremo estaría rematado por una pequeña pieza de forma esférica. Dicho cordón pasaría por el orificio de una anilla soldada a la barra posterior 4 en un punto próximo al elemento de unión 8 y por debajo del mismo. El diámetro del orificio de dicha anilla sería menor que el de la pieza esférica de remate del cordón de modo que dicha pieza esférica no podría pasar por la anilla. To facilitate the folding of the bicycle, a textile cord can be incorporated, so that one of its ends would be joined to the previous bar 3 and the other end would be topped by a small spherical piece. Said cord would pass through the hole of a ring welded to the rear bar 4 at a point near the joint element 8 and below it. The diameter of the orifice of said ring would be smaller than that of the spherical part of the bead of the bead so that said spherical piece could not pass through the ring.
La longitud del cordón sería tal que estuviera casi totalmente extendido con la bicicleta desplegada. De esta manera, al desmontar el pasador 12 para plegar la bicicleta se evitaría un posible alejamiento no deseado de la parte delantera de la bicicleta (ya que lo impediría el hecho de que la pieza esférica no puede pasar por la anilla) y, a la vez, con la bicicleta ya plegada, se facilitaría el mantenerla plegada anudando, o sujetando mediante algún otro sistema, el resto sobrante del cordón a la barra posterior 4. The length of the cord would be such that it was almost fully extended with the bicycle deployed. In this way, disassembling the pin 12 to fold the bicycle would prevent a possible unwanted removal of the front part of the bicycle (since it would be prevented by the fact that the spherical part can not pass through the ring) and, at the Once, with the bicycle already folded, it would be easier to keep it folded by knotting, or holding by means of some other system, the remaining excess of the cord to the rear bar 4.
Para mantener mejor sujeta la parte delantera de la bicicleta plegada también se podría incorporar una cinta textil, provista de elementos de unión tipo "velero" o similar, para mantener próximos entre sí la horquilla delantera y el tubo del sillín 4.
Estas soluciones son de muy poco peso, no dañan la superficie de los elementos que enlazan, permiten una aproximación graduable de los elementos que se enlazan y emplean elementos muy económicos y comunes en el mercado, pero podrían ser cualesquiera otras. Por último, y a fin de evitar piezas sueltas tras el proceso de plegado, se puede introducir la tija del sillín en el interior de la barra superior 2 y sujetarla con el mismo pasador roscado 12 que une la barra superior 2 con la barra del sillín 4 cuando la bicicleta está desplegada. To keep the front part of the folded bicycle better, a textile belt, equipped with "sailboat" type elements or similar, could be incorporated to keep the front fork and the seat tube 4 close together. These solutions are very light weight, do not damage the surface of the elements that link, allow a gradable approximation of the elements that are linked and use very economic and common elements in the market, but could be any other. Finally, and in order to avoid loose parts after the folding process, the seatpost can be inserted inside the upper bar 2 and fastened with the same threaded pin 12 joining the upper bar 2 with the seat bar 4 when the bicycle is unfolded.
Para ello, los diámetros interiores de la barra superior 2 y de la barra del sillín 4 han de ser iguales (lo que es habitual en muchas bicicletas), en la parte central del elemento unido al extremo posterior de la barra superior 2 debe hacerse un orificio de diámetro igual al citado diámetro interior de la barra superior 2 y en la tija del sillín 13 se ha de practicar un orificio transversal que permita la introducción del pasador roscado 12 extraíble. Así, dicho pasador roscado 12 se aprovecha también para sujetar la tija del sillín 13. To do this, the inside diameters of the upper bar 2 and the bar of the saddle 4 must be the same (which is common in many bicycles), in the central part of the element attached to the rear end of the upper bar 2 must be made a hole of diameter equal to said inner diameter of the upper bar 2 and in the seat post 13 a transverse hole is to be made that allows the insertion of the removable threaded pin 12. Thus, said threaded pin 12 is also used to hold the seatpost 13.
Los distintos elementos (rueda delantera y conjunto plegado del resto de la bicicleta) pueden guardarse por separado, lo que permite acomodarlos de la forma que resulte más adecuada en el espacio disponible (maletero del vehículo, etc.), o guardarlos juntos en una bolsa textil de diseño adecuado, bolsa que no es objeto de esta patente.
The different elements (front wheel and folded assembly of the rest of the bicycle) can be stored separately, which allows them to be arranged in the most appropriate way in the available space (luggage compartment of the vehicle, etc.), or to store them together in a bag textile of suitable design, bag that is not the object of this patent.
Claims
REIVINDICACIONES
1a.- BICICLETA PLEGABLE, que manteniendo la configuración geométrica y estructural de las bicicletas convencionales de carreras, de carretera o de montaña, que presentan un cuadro rígido definido por las siguientes cuatro barras: 1 .- FOLDING BICYCLE, that maintaining the geometric and structural configuration of conventional racing bikes, road or mountain, which have a rigid frame defined by the following four bars:
• una barra superior (2) que une la barra de dirección (3) asociada al manillar y la parte superior de la barra del sillín (4), • a top bar (2) that joins the steering bar (3) associated with the handlebar and the upper part of the saddle bar (4),
• una barra inferior (5) que une la barra de dirección (3) asociada al manillar y la parte inferior de la barra del sillín (4), • a lower bar (5) that joins the steering bar (3) associated with the handlebar and the lower part of the saddle bar (4),
« la citada barra de dirección (3) asociada al manillar, y «Said steering bar (3) associated with the handlebar, and
• la citada barra del sillín (4) asociada al mismo, • the aforementioned seat bar (4) associated therewith,
está caracterizada por que: It is characterized by:
la barra superior (2) del cuadro se fija a la barra del sillín (4) por unos medios de unión articulada de eje perpendicular al plano del cuadro de la bicicleta siendo dicha unión desmontable(6), y; the upper bar (2) of the frame is fixed to the saddle bar (4) by an articulated joint means of axis perpendicular to the plane of the frame of the bicycle said removable joint (6) being;
la barra inferior (5) del cuadro se fija a la barra de dirección asociada al manillar (3) y a la barra del sillín (4) por unos medios de unión articulada también de eje perpendicular al plano del cuadro de la bicicleta (15), por lo que todos los movimientos de plegado y desplegado del cuadro se producen siempre en el mismo plano del cuadro de la bicicleta. the lower bar (5) of the frame is fixed to the steering rod associated with the handlebar (3) and to the saddle bar (4) by articulated joint means also of axis perpendicular to the plane of the frame of the bicycle (15), so all the folding and unfolding movements of the frame are always produced in the same plane as the frame of the bicycle.
2a.- BICICLETA PLEGABLE, según reivindicación 1a, caracterizada por que los medios de unión desmontable (6) de la barra superior (2) del cuadro a la barra del sillín (4) se definen por un primer elemento (8) solidario a la barra del sillín (4), dispuesto en proximidad a su parte superior y dotado de un orificio pasante (9) perpendicular al plano del cuadro de la bicicleta y un segundo elemento (10), de remate de la barra superior (2) del cuadro, en forma de "U", con sus alas provistas de respectivos orificios (11) y entre cuyas alas encaja y se fija el primer elemento (8) por medio de un pasador roscado con cierre rápido extraíble (12) dispuesto en sus orificios coincidentes constituyendo el conjunto una articulación de eje perpendicular al plano del cuadro de la bicicleta, que puede fijarse suficientemente al apretar el cierre rápido y que también es desmontable al aflojar y soltar el mismo. 2 .- folding bicycle, according to claim 1, wherein releasable attachment means (6) of the upper bar (2) of the box to the seat tube (4) are defined by a first element (8) integral to the saddle bar (4), arranged in proximity to its upper part and provided with a through hole (9) perpendicular to the plane of the bicycle frame and a second element (10), for the top rod (2) of the frame, in the form of "U", with its wings provided with respective holes (11) and between whose wings the first element (8) fits and is fixed by means of a threaded pin with removable quick release (12) arranged in its matching orifices constituting the assembly a joint of axis perpendicular to the plane of the frame of the bicycle, which can be fixed sufficiently when tightening the quick release and that is also removable when loosening and releasing it.
3a.- BICICLETA PLEGABLE, según reivindicación 1a, caracterizada por que la unión articulada (15) de la barra inferior (5) del cuadro a la barra de dirección (3) asociada al
manillar queda bajo la fijación solidaria de la barra superior (2) del cuadro a dicha barra de dirección y la unión articulada a la barra del sillín (4) se materializa a través de unas pequeñas orejetas (7) solidarias a su parte inferior, materializando la unión articulada (15) por correspondientes pasadores entre orificios coincidentes de las barras a unir, todos de eje perpendicular al plano del cuadro de la bicicleta.
3 .- folding bicycle, according to claim 1, characterized in that the articulated joint (15) of the bottom bar (5) of the box to the steering rod (3) associated to The handlebar remains under the integral fixation of the upper bar (2) of the frame to said steering rod and the articulated joint to the saddle bar (4) is materialized through small lugs (7) integral with its lower part, materializing the articulated joint (15) by corresponding pins between matching holes of the bars to be joined, all of axis perpendicular to the plane of the frame of the bicycle.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES201530821A ES2596980B1 (en) | 2015-06-12 | 2015-06-12 | FOLDING BICYCLE |
| ESP201530821 | 2015-06-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2016198709A1 true WO2016198709A1 (en) | 2016-12-15 |
Family
ID=57503612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/ES2016/070324 WO2016198709A1 (en) | 2015-06-12 | 2016-04-28 | Foldable bicycle |
Country Status (2)
| Country | Link |
|---|---|
| ES (1) | ES2596980B1 (en) |
| WO (1) | WO2016198709A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR883836A (en) * | 1941-01-06 | 1943-07-20 | Constructions Aeronautiques Sudest | Improvements to folding bicycles for ease of transport |
| GB2260300A (en) * | 1991-10-07 | 1993-04-14 | Richard John Albert Moore | Cycle with foldable frame and suspension |
| WO2012034158A1 (en) * | 2010-09-15 | 2012-03-22 | Peter Scott Rundle | Folding diamond type frame for a bicycle |
| ES2398025A1 (en) * | 2011-04-27 | 2013-03-13 | Rafael MARÍN GARRIDO | Longitudinal bicycle folding system |
-
2015
- 2015-06-12 ES ES201530821A patent/ES2596980B1/en active Active
-
2016
- 2016-04-28 WO PCT/ES2016/070324 patent/WO2016198709A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR883836A (en) * | 1941-01-06 | 1943-07-20 | Constructions Aeronautiques Sudest | Improvements to folding bicycles for ease of transport |
| GB2260300A (en) * | 1991-10-07 | 1993-04-14 | Richard John Albert Moore | Cycle with foldable frame and suspension |
| WO2012034158A1 (en) * | 2010-09-15 | 2012-03-22 | Peter Scott Rundle | Folding diamond type frame for a bicycle |
| ES2398025A1 (en) * | 2011-04-27 | 2013-03-13 | Rafael MARÍN GARRIDO | Longitudinal bicycle folding system |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2596980A1 (en) | 2017-01-13 |
| ES2596980B1 (en) | 2017-10-27 |
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