ITBO20080046U1

ITBO20080046U1 - DEVICE TO CHANGE THE SADDLE OF A BICYCLE

Info

Publication number: ITBO20080046U1
Application number: IT000046U
Authority: IT
Inventors: Gian Luigi Gherardi
Original assignee: Gian Luigi Gherardi
Priority date: 2008-06-10
Filing date: 2008-06-10
Publication date: 2009-12-10

Description

DESCRIZIONE di modello industriale/di utilit? avente per titolo: DESCRIPTION of industrial / utility model having as title:

?Dispositivo per modificare assetto della sella di una bicicletta?. ? Device to modify the position of the saddle of a bicycle ?.

TESTO DELLA DESCRIZIONE TEXT OF THE DESCRIPTION

La presente invenzione ? relativa all?impiego della sella nei veicoli a due ruote (biciclette) azionati dalla forza muscolare. The present invention? relating to the use of the saddle in two-wheeled vehicles (bicycles) powered by muscle force.

Nelle biciclette tradizionali, attualmente in uso, la sella ? appoggiata e fissata con apposite staffe sulla parte superiore di un blocchetto. Detto blocchetto ha la parte inferiore conformata in modo da potersi adattare e fissare sulla testa del cannotto il quale, a sua volta, ? centrato sul telaio della bicicletta e bloccato nella posizione desiderata con un morsetto. In traditional bicycles currently in use, the saddle? supported and fixed with special brackets on the upper part of a block. Said block has the lower part shaped in such a way as to be able to adapt and fix on the head of the tube which, in turn,? centered on the bicycle frame and locked in the desired position with a clamp.

Le tre registrazioni ( angolare, assiale, altezza ) della sella nelle biciclette sopra citate sono realizzabili solo con il veicolo fermo, senza il ciclista, e con l?uso di chiavi adatte. E? noto che, oltre al tipo di percorso e agli attriti meccanici la maggior forza che si oppone al movimento di un veicolo ? la resistenza all?aria. The three adjustments (angular, axial, height) of the saddle in the aforementioned bicycles can only be made with the vehicle stationary, without the cyclist, and with the use of suitable wrenches. AND? I notice that, in addition to the type of path and mechanical friction, the greater force that opposes the movement of a vehicle? resistance to air.

Infatti per migliorare l?aerodinamica, l?utilizzatore delle biciclette attualmente in uso, deve spostare il suo corpo verso il manubrio spostando il bacino verso la punta della sella, rendendo l?appoggio su di essa doloroso e irrazionale. In fact, to improve aerodynamics, the user of the bicycles currently in use must move his body towards the handlebar by moving the pelvis towards the tip of the saddle, making the support on it painful and irrational.

Assumendo tale postura, per?, pu? abbassare ulteriormente la testa e la parte superiore del corpo diminuendo la superficie esposta all?aria. Assuming this posture, however, can you? further lower the head and upper body by decreasing the surface exposed to the air.

Inoltre con tale postura si ottiene, sia il massimo rendimento nello scarico della forza muscolare sui pedali che una respirazione pi? regolare, essendo sia l?addome che il diaframma meno compresso dalla parte superiore delle gambe . In addition, with this posture, both the maximum performance in the unloading of the muscular force on the pedals and a better breathing can be obtained. regular, being both the abdomen and the diaphragm less compressed by the upper part of the legs.

Per conseguire i miglioramenti sopra menzionati, specialmente utili nei percorsi pianeggianti nei quali si possono raggiungere velocit? molto elevate, l?obbiettivo dell? invenzione ? di rendere possibile lo spostamento assiale della sella, in modo da diminuire la sua distanza, di una quantit? rilevante, dall?asse verticale che passa sul centro di rotazione delle pedivelle, anche con la bicicletta in movimento e il ciclista impegnato nel pedalare senza l?uso di chiavi o attrezzi speciali. To achieve the improvements mentioned above, especially useful in flat routes where speed can be reached? very high, the goal of? invention? to make possible the axial displacement of the saddle, in order to reduce its distance, by a quantity? relevant, from the vertical axis that passes over the center of rotation of the cranks, even with the bicycle in motion and the cyclist engaged in pedaling without the use of special tools or wrenches.

Lo scopo dell?invenzione, oltre che a rendere possibile una posizione molto avanzata, adatta nei percorsi pianeggianti e una arretrata per i percorsi in discesa, realizza la possibilit? di ottenere altre posizioni intermedie, in modo che il ciclista possa variare con facilit? la sua postura, adattandola al tipo di sforzo che deve compiere. The purpose of the invention, as well as to make possible a very advanced position, suitable for flat paths and a backward position for downhill paths, realizes the possibility? to obtain other intermediate positions, so that the cyclist can vary with ease? his posture, adapting it to the type of effort he has to make.

Le particolari caratteristiche dell?invenzione risulteranno evidenti con maggiori dettagli nella descrizione di alcune forme esecutive, non limitative, nei disegni allegati nei quali : -La figura 1 illustra schematicamente una vista laterale di una soluzione esecutiva secondo l?invenzione con la sella rappresentata nelle due posizioni estreme; The particular characteristics of the invention will become evident in greater detail in the description of some non-limiting embodiments in the attached drawings in which: -Figure 1 schematically illustrates a side view of an executive solution according to the invention with the saddle represented in the two extreme positions;

-la figura 2 rappresenta in sezione schematica, secondo la linea A-A della figura 1, il montaggio della sella fissata sul carrello mobile, il catenaccio, la guida e il cannotto bloccato sul telaio della bicicletta; Figure 2 is a schematic sectional view, according to the line A-A of Figure 1, of the assembly of the saddle fixed on the mobile carriage, the bolt, the guide and the stem locked on the bicycle frame;

-la figura 3 rappresenta, schematicamente, una vista laterale di una bicicletta con il dispositivo secondo l?invenzione e i riferimenti geometrici principali; Figure 3 schematically represents a side view of a bicycle with the device according to the invention and the main geometric references;

-la figura 4 rappresenta una vista laterale di una soluzione esecutiva relativa alla traslazione del carrello reggi sella diversa da quella secondo le figure 1 e 2 e realizzata con l?impiego di due cavi flessibili contrapposti; figure 4 represents a side view of an executive solution relating to the translation of the saddle-holding trolley different from that according to figures 1 and 2 and realized with the use of two opposite flexible cables;

-la figura 5 rappresenta,lungo la linea C-C della figura 4, i due cavi flessibili contrapposti destinati a causare la traslazione del carrello reggi sella scorrevole sulla guida a?T?. figure 5 represents, along the line C-C of figure 4, the two opposite flexible cables destined to cause the translation of the saddle-supporting carriage sliding on the "T" guide.

-la figura 6 illustra in sezione schematica, secondo la linea B-B della figura 7, il rocchetto avvolgitore dei cavi flessibili per realizzare la traslazione del carrello reggi sella; figure 6 is a schematic sectional view, according to line B-B of figure 7, of the reel for rewinding the flexible cables for carrying out the translation of the saddle carriage;

-la figura 7 rappresenta schematicamente, in vista laterale, un sistema per realizzare la traslazione della sella secondo la figura 4 - 5 - 6 ; figure 7 schematically represents, in side view, a system for carrying out the translation of the saddle according to figures 4 - 5 - 6;

-la figura 8 rappresenta, in vista laterale, una soluzione che prevede di fare scorrere il carrello reggi sella sulla relativa guida con l?uso di rotelle trasformando, in volvente, l attrito radente che si viene a creare nella versione rappresentata nelle figure 1 e 2; -Figure 8 represents, in side view, a solution which provides for sliding the saddle-holding carriage on the relative guide with the use of wheels, transforming, in rolling, the sliding friction that is created in the version shown in figures 1 and 2;

-la figura 9, in sezione schematica secondo la linea ?D-D? della figura 8, rappresenta il carrello mobile reggi sella sulla relativa guida di scorrimento con l impiego di rotelle sagomate supportate da cuscinetti. Figure 9, in schematic section along the line? D-D? of figure 8, shows the mobile saddle-holding carriage on the relative sliding guide with the use of shaped wheels supported by bearings.

Con riferimento alle figure 1 e 2 con 1 ? indicato il carrello mobile con la parte superiore conformata in modo da creare un appoggio ai due tubi 2 della sella 3 sul quale viene fissata rigidamente con le staffe 4 e le relative viti. With reference to figures 1 and 2 with 1? the mobile trolley is indicated with the upper part shaped so as to create a support for the two tubes 2 of the saddle 3 on which it is rigidly fixed with the brackets 4 and the relative screws.

Il gruppo sopra descritto ? appoggiato sul piano di scorrimento 20 e centrato nella guida 5, in sezione rappresentata a titolo d?esempio con la forma di una ?T?, che gli consente di scorrere nel senso della sua lunghezza e contemporaneamente ne impedisce il ribaltamento sia assiale che laterale . The group described above? resting on the sliding surface 20 and centered in the guide 5, in section represented by way of example with the shape of a "T", which allows it to slide along its length and at the same time prevents both axial and lateral overturning.

Il catenaccio 6 alloggiato nella guida 5, spinto dalla molla 7, si inserisce nella nicchia 8 o nella 9 ricavata nel carrello mobile 1 determinando, rispettivamente, le due posizioni estreme DI o D2 della sella 3 rispetto all?asse verticale K passante per Y (centro di rotazione delle pedivelle 21 ). The bolt 6 housed in the guide 5, pushed by the spring 7, is inserted into the recess 8 or into the 9 obtained in the mobile carriage 1, determining, respectively, the two extreme positions DI or D2 of the saddle 3 with respect to the vertical axis K passing through Y ( center of rotation of the cranks 21).

Nelle due estremit? del piano di scorrimento 20 i talloni 10 impediscono al carrello mobile 1 di sfilarsi dalla guida 5. In the two ends? of the sliding surface 20 the heels 10 prevent the movable carriage 1 from slipping off the guide 5.

Facendo riferimento alle figure 1 e 2, il cannotto 12, centrato e fissato con il morsetto 16 sul telaio 15 della bicicletta, nella sua parte superiore ? provvisto di una scanalatura verticale aH?intemo della quale e alloggiata la guida 5 bloccata su di esso dalla vite 13 e dal dado esagonale 14 . Referring to Figures 1 and 2, the tube 12, centered and fixed with the clamp 16 on the frame 15 of the bicycle, in its upper part? provided with a vertical groove inside which the guide 5 is housed, blocked on it by the screw 13 and by the hexagonal nut 14.

Il cannotto 12 ? provvisto anche di due viti 17 e 18 le quali permettono, avvitando la prima e svitando la seconda e viceversa, di rendere il piano superiore 19 della sella 3 pi? o meno orizzontale. The quill 12? also provided with two screws 17 and 18 which allow, by screwing the first and unscrewing the second and vice versa, to make the upper surface 19 of the saddle 3 more? or less horizontal.

Nella figura 1 e 3 sono rappresentati i punti e le linee geometriche caratteristiche per posizionare nello spazio il piano inclinato 20 della guida 5: - Il punto Y ? il centro di rotazione delle pedivelle 21, K ? l?asse verticale passante per Y, W? ? l?angolo fra il piano di scorrimento 20 e l?asse K e infine la distanza R fra il punto Y e la mezzeria della sella XI o X2 . Figures 1 and 3 show the points and the characteristic geometric lines for positioning the inclined plane 20 of guide 5 in space: - Point Y? the center of rotation of the cranks 21, K? the vertical axis passing through Y, W? ? the angle between the sliding plane 20 and the axis K and finally the distance R between the point Y and the center line of the saddle XI or X2.

Con X ? definito un punto situato sul piano 19 a met? della lunghezza L della sella 3 (L/2 dai suoi estremi), detto punto ? rappresentato, in figura 1, con Xle X2 rispettivamente con la sella nelle posizioni estreme della sua traslazione lungo la pista 20 . With X? defined a point located on the 19 plane in the middle? of the length L of saddle 3 (L / 2 from its ends), called point? represented, in figure 1, with Xl and X2 respectively with the saddle in the extreme positions of its translation along the track 20.

L?angolo W ?, opportunatamente dimensionato, permette di avere i punti XI e X2 ad una distanza R dal centro Y sostanzialmente costante, oppure volutamente diverso di un valore predefinito. The? Angle W?, Suitably dimensioned, allows to have the points XI and X2 at a substantially constant distance R from the center Y, or deliberately different by a predefined value.

Nelle figure 4 - 5 - 6 - 7 ? rappresentato, a titolo d?esempio, un sistema diverso, rispetto alle figure 1 e 2, per effettuare la traslazione del carrello reggi sella 24. In figures 4 - 5 - 6 - 7? shown, by way of example, a different system, with respect to Figures 1 and 2, for translating the saddle-holding carriage 24.

Il suddetto sistema , secondo la figura 4 , ? composto da due cavi flessibili 22 e 23 ancorati sul carrello 24 in due punti contrapposti, ed esattamente il cavo 22 nel punto 25 e il cavo 23 nel punto 26 . The aforesaid system, according to Figure 4,? consisting of two flexible cables 22 and 23 anchored on the trolley 24 in two opposite points, and exactly the cable 22 in the point 25 and the cable 23 in the point 26.

Detti cavi flessibili sono avvolti per un arco attorno alle rotelle 27 per poi confluire nei rispettivi tubi 28 e 28BIS che li guideranno lungo il telaio della bicicletta fino al punto di raccolta sul rocchetto 29 della figura 7. Said flexible cables are wound for an arc around the wheels 27 and then flow into the respective tubes 28 and 28BIS which will guide them along the bicycle frame to the collection point on the spool 29 of Figure 7.

La figura 7 rappresenta in vista frontale il rocchetto 29, disposto in un punto qualsiasi del telaio della bicicletta, sul quale sono ancorati e avvolti, in senso antiorario il cavo 22 e in senso orario il cavo 23. Figure 7 is a front view of the spool 29, arranged in any point of the bicycle frame, on which the cable 22 is anchored and wound, in an anticlockwise direction and the cable 23 in a clockwise direction.

Per posizionare la sella 3 negli estremi DI e D2 della sua traslazione, come rappresentato in figura 4, occorre che il tallone 30 del rocchetto 29 sia inserito, rispettivamente, nelle relative sedi 31 o 32, secondo le figure 6 e 7. To position the saddle 3 at the ends D1 and D2 of its translation, as shown in Figure 4, the bead 30 of the spool 29 must be inserted, respectively, in the relative seats 31 or 32, according to Figures 6 and 7.

Per effettuare la rotazione del rocchetto 29 occorre estrarre il suo tallone 30 dalle sedi 31 o 32 comprimendo la molla di contrasto 33 come rappresentato in figura 6. To rotate the spool 29 it is necessary to extract its bead 30 from the seats 31 or 32 by compressing the contrast spring 33 as shown in figure 6.

Le figure 8 e 9 illustrano un sistema di traslazione del carrello reggi sella 35 nel quale, l?attrito radente che si crea nel dispositivo secondo le figure 1 e 2, viene trasformato in attrito voi venie con l?impiego di rotelle. Figures 8 and 9 illustrate a translation system of the saddle-holding carriage 35 in which the sliding friction that is created in the device according to Figures 1 and 2 is transformed into friction through the use of wheels.

Infatti il carrello mobile 35 ? provvisto di due rotelle superiori 37 che sopportano il peso del ciclista, le quali durante la traslazione, ruotano sulla guida 36 della piastra 39 e sui cuscinetti 38. Indeed the mobile trolley 35? provided with two upper wheels 37 which bear the weight of the cyclist, which, during translation, rotate on the guide 36 of the plate 39 and on the bearings 38.

Le due rotelle inferiori 40 appoggiandosi sulla guida 41 e ruotando sui cuscinetti 34 impediscono al carrello mobile 35 di ribaltarsi sia in senso assiale che laterale. The two lower rollers 40 resting on the guide 41 and rotating on the bearings 34 prevent the movable carriage 35 from overturning both axially and sideways.

Naturalmente l?invenzione non ? limitata alle forme test? descritte ed illustrate, ma pu? essere ampiamente variata e modificata, soprattutto costruttivamente . Of course the invention is not? limited to test forms? described and illustrated, but can? be widely varied and modified, especially constructively.

Il dispositivo secondo l?invenzione potr? essere applicato in qualsivoglia tipo di veicolo il tutto senza abbandonare il principio informatore sopra esposto ed a seguito rivendicato. The device according to the invention will be able to be applied in any type of vehicle, all without abandoning the guiding principle set out above and claimed hereinafter.

Claims

CLAIMS 1) device for varying the distance (DI) in (D2), and vice versa, of the saddle (3) of a bicycle with respect to the vertical axis (K.) passing through (Y), center of rotation of the cranks (21). 2) device, according to claim 1, characterized in that the cyclist can? vary the distance (DI) in (D2), and vice versa, of the saddle (3) with respect to the axis (K) passing through (Y), center of rotation of the cranks (21) with the bicycle in motion and possibly without interrupting the his muscular effort to pedal. 3) device characterized by the fact that the sliding track (20), on which? resting the mobile trolley (1) and the relative saddle (3),? inclined by an angle (W?) with respect to the vertical axis (K) passing through (Y), center of rotation of the cranks (21). 4) angle (W?), According to claims 1-2-3, characterized in that if suitably dimensioned, it allows to have the points (XI) and (X2) of the saddle (3) in the two extreme positions (DI) and (D2) of its translation along the track (20), at a substantially constant distance (R) from (Y), center of rotation of the cranks (21). 5) angle (W?), According to claim 4, characterized by the fact that if suitably dimensioned it allows to have the points (XI) and (X2) of the saddle (3) at a distance (R) deliberately different from each other, of a predefined value, with respect to (Y) center of rotation of the cranks 21. 6) device, characterized by the fact that the saddle (3)? supported and fixed with the brackets (4) and relative screws on the upper part of the mobile trolley (1). 7) device, characterized by the fact that the mobile trolley (1) in the lower part? resting on the sliding track (20) and d? perfectly matched with the? T? guide (5) so that it can slide freely on it without tipping sideways. 8) mobile trolley (1), characterized by the fact that in the lower part? provided with two seats (8) and (9) to contain the point of the bolt (6). 9) device according to claim 8, characterized in that the bolt (6) can? be inserted in the seat (8) or in the (9) of the mobile trolley (1) by arranging, respectively, the saddle (3) in position (DI) or in (D2) at the ends of its translation with respect to the vertical axis (K) passing through (Y) center of rotation of the cranks (21). 10) device, according to claims 8 and 9, characterized in that between the seats (8) and (9) of the mobile trolley (1) other identical seats can be made to obtain as many positions of the saddle (3) included between the ends (DI and D2) of its translation. 11) device, characterized by the fact that the unit? Mobile carriage (1) and relative saddle (3)? resting on the sliding track (20) and centered on a guide (5) which prevents it from overturning both axially and laterally. 12) device, characterized in that the guide (5) in addition to the? T? Guide form, according to claims 7 and 11, other forms and guide systems can be adopted without altering the principle set out in claims 1 to 11. 13) device, characterized by the fact that the fixed guide (5) can? contain, in a suitable seat, a locking device for positioning the mobile carriage (1) in the two extreme positions of its translation. 14) locking device, according to claim 13, characterized in that it can? be operated by the cyclist while pedaling. 15) locking device, according to claims 8-9-10-13-14, characterized by the fact that the cyclist can? remove the bolt (6) from the seats (8 and 9) of the mobile carriage (1) by gripping the knob (11) and compressing the spring (7). 16) device, according to claim 11, characterized in that at the ends of the sliding track (20) the heels (10) prevent the mobile carriage (1) from slipping off the fixed guide (5). 17) device, comprising a tube (12) centered in the frame (15) of the bicycle and blocked in height by the clamp (16), characterized by the fact that in the upper part it contains, in a suitable seat, the fixed guide (5) blocked, on the sleeve itself, with the screw (13) and the hexagonal nut (14). 18) device, according to claim 17, characterized in that the tube (12) contains the system for making the support surface (19) of the saddle (3) more? or less horizontal. Adjustment can be carried out by unscrewing the screw (17) and screwing down (18), and vice versa, after having loosened the nut (14) that blocks the guide (5). 19) device, as an alternative to claims 8-9-10-13-15, characterized in that the translation of the mobile carriage (24) and the relative saddle (3)? made by two flexible cables (22 and 23) alternately tensioned by a reel (29) which can be activated by the cyclist while pedaling. 20) translation device, according to claim 19, characterized by the fact that the flexible cables (22 and 23) are fixed, respectively, to the ends? (25 and 26) of the mobile trolley (24) and deflected by the wheels (27) inside the tubes (28 and 28bis) which will guide them along the bicycle frame up to the drag device. 21) dragging device, according to claims 19 and 20, characterized by the use of a reel (29) on which the flexible cables (22 and 23), after coming out of the guide tubes (28 and 28 bis), are fixed and wound counterclockwise and clockwise, respectively. 22) dragging device, according to claims 19-20-21, characterized by the fact that by rotating the reel (29) counterclockwise or clockwise, the flexible cable (22) or (23) respectively is tensioned, causing consequently, the forward or backward movement of the mobile carriage (24) and of the relative saddle (3). 23) dragging device, according to claims 19 to 22, characterized in that the spool (29)? provided with a heel (30) that can? be inserted, alternatively, in the fixed seats (31) and (32) placing the saddle (3) at the ends of its translation, respectively, in the positions (DI) or in (D2) with respect to the axis (K) passing through (Y ) center of rotation of the cranks (21). 24) dragging device, according to claim 23, characterized by the fact that between the fixed slots (31 and 32) can be inserted a plurality of other identical fixed slots in order to obtain the same number of positions of the saddle (3). 25) saddle translation device (3) without sliding friction, characterized by the fact that the mobile carriage (35) can? moving along the sliding tracks (36 and 41) supported by two upper wheels (37), on which the weight of the cyclist is discharged, and by two lower wheels (40) which prevent the device from overturning both axially and laterally. 26) upper and lower rollers (37 and 40), according to claim 25, characterized by the fact that during translation they rotate both on the sliding tracks (36 and 41) and on the lateral bearings (34 and 38), reducing the total friction to minimum values. 27) saddle translation device (3), according to claim 25, characterized by the fact that the wheels (37 and 40) have the central part shaped so as to perfectly couple to the profile of the sliding tracks (36 and 41) of the plate (39). 28) device for varying the position of the saddle in a bicycle, both in motion and when stationary, substantially as described with reference to any one of the figures of the annexed drawings.