西班牙专利ES2784917A1 Steering system for motorcycles (Machine-translation by Google Translate, not legally binding)

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专利摘要:
- Steering and suspension system for motorcycles, composed of two kinematic groups called: Steering pivot and suspension swingarm, coupled by three points with a sliding surface referenced as (A), (B) and (C), composed of the two bars (4 and 4A) and, the lower end of the steering shaft (3). The steering pivot includes: - An upper triple clamp (1) that houses and fixes the steering semi-handlebars (5 and 5A); that houses and fixes the upper anchor of the suspension shock absorber and that houses and fixes the sliding bars (4 and 4A); - Two steering semi-handlebars (5) and (5A) housed and fixed on the seat post (1); - A lower stem (2) that houses and fixes the sliding bars (4 and 4A); - Two sliding bars (4) and (4A), housed and fixed between the posts (1 and 2); - A rotary steering shaft (3), housed and fixed between the posts (1 and 2); The suspension tilting train includes: - Two anchors (6) and (6A), arranged to slide along the bars (4 and 4A), with a variant (6B) that supports a greater stress load; - Two arms (7) and (7A), coupled and fixed in the sliding anchors (6 and 6A); - A support (8) that slides along the shaft (3) that assembles the arms (7 and 7A) and that houses and fixes the lower anchor of the suspension shock absorber; - An axle (9) that couples and fixes the front wheel, housed and fixed at the lower ends of the arms (7 and 7A); - An anchor (10) that walks and fixes the brake caliper; anchored and fixed on the diagonal extension of the lower end of the arm (7). - Steering and damping system that does not need to modify the motorcycle chassis to fit on it; which is anchored and fixed, by means of the shaft (3) between the two bearings located in the chassis pipe, to pivot to the right and left; that its geometry maintains the advance, the degree of launch and the suspension travel; that does not make mechanical stops at the end of the shock absorption compression and expansion strokes; that is lightened in weight and components and that optimizes the centralization of weight. - Steering and damping system characterized by the fact of its support and dynamic distribution of the front load stresses of the motorcycle, supported and distributed by means of a wide base composed of the three mentioned points (A), (B) and (C), the latter being the one that supports a greater tension load. (Machine-translation by Google Translate, not legally binding)
公开号:ES2784917A1
申请号:ES202000114
申请日:2020-07-03
公开日:2020-10-02
发明作者:Gutierrez José Antonio Carmona
申请人:Carmona Gutierrez Jose Antonio；
IPC主号:

专利说明:

[0001] Steering system for motorcycles
[0002] The present invention refers to an alternative steering and suspension system for the front end of motorcycles, with optimal dynamic behavior, great mechanical accessibility, very light weight, components and hardware; Adaptable to all types of motorcycles, especially those of competition, without requiring modifications to the chassis to fit this system.
[0003] Field of the invention
[0004] The present invention, hereinafter, will refer to the motorcycle as a suitable vehicle, although this reference should not be understood as limiting, the invention can be interchangeably coupled with tricycles, mopeds, scooters, bicycles, etc.
[0005] Background of the invention
[0006] It is known that the most common steering and suspension system for motorcycles is the so-called conventional fork.
[0007] The fork's steering system comprises:
[0008] • One upper seat post and one lower seat post;
[0009] • An axis that joins the two seatposts and fixes them on the steering head of the chassis;
[0010] • Two bottles anchored in the posts that house the suspension bars;
[0011] • Two mobile bars that slide internally through the bottles to perform a telescopic damping run;
[0012] • An axle that anchors the front wheel, anchored in turn between the two bars.
[0013] Other background of the invention
[0014] All the steering and suspension systems for motorcycles, different from the conventional fork, are grouped and known under the common denominator of -alternatives-; the invention does not present kinematic coincidences with them.
[0015] - In the registry of the Spanish patent office, various alternative antecedents of the invention have been disclosed, we cite the following documents:
[0016] ES-0033129U, ES-0044484U, ES-0061427U, ES-0062144U, ES-0122906U, ES-0214735A1, ES-0237151A1, ES-0473510A1, ES-1078460U, ES-1101859U and ES-2550770T3.
[0017] - Another alternative antecedent of the invention is that disclosed in WO-8701670A, which consists of a metal frame with two arms, the upper part of which pivots on the pipe of the motorcycle chassis and the suspension is made by means of two internal bars activated by Joints, presents two variants, as illustrated in Figures Ant.1 and Ant.2.
[0018] - Another alternative antecedent of the disclosed invention is known by the name of -telelever-, as illustrated in figure Ant. 3, it consists of two seat posts, two fixed bottles and two mobile bars; the shock absorber is separated from them, its upper anchor is fixed on the motorcycle chassis and the lower one on a large triangular cam, anchored by two of its ends to the chassis and, its third end, coupled to a ball joint located between the two bottles, above the wheel; It is characterized by its anti-sinking suspension.
[0020] - Other alternative antecedents of the invention have been disclosed with various variants, by way of example we cite document US-0288562A1 and, figure Ant.4; are systems that, in general, consist of a rigid central body, anchored in the motorcycle chassis by means of four cams called parallelograms, provided to enable the suspension travel, its lower part, bifurcates into two arms to house the wheel and, Its upper part is pivotally coupled to a component of the chassis, by means of a folding articulation link that enables the right / left steering rotation.
[0022] - Other alternative antecedents of the invention are known as single arm, they are characterized in that they fix or couple the front wheel of the motorcycle by means of a single arm, in some cases, they separate the direction from the damping and do not transmit to the driver the sensations of the asphalt; we cite the following documents:
[0023] ES-0029552U, ES-0279694U, ES-2051546T3, ES-2335335A1, ES-2380743A1, US-5209319A, US-5417305A and FR-2860765A1.
[0025] Considerations
[0027] Conventional fork:
[0028] The fork performs the function of damping the motorcycle in the internal cavity of its two bottles, by means of two bars provided with springs and hydraulic oil pipes; its access requires the use of a certain amount of time and its handling must prevent the impregnation of oil which, at the end of its useful life, is a recyclable waste; its damping requires many internal components and robust bars to withstand the working pressure; dynamically, its mechanics are heavy and its weight distribution has no room for modification.
[0030] Alternative systems disclosed:
[0031] These systems, where appropriate, to exercise the function of steering and suspension of motorcycles, have complex kinematics that require many components, joints, cams and connecting rods; their damping path is oscillating, when braking, they initially increase the wheelbase and subsequently reduce it; dynamically, they are heavy, they generate a lot of inertia and their kinematics (in some systems) do not transmit to the driver the real sensations of the asphalt.
[0033] The applicant considers that these systems can be improved:
[0034] In your case, some kinematic mechanisms can be simplified; some components can be removed; the total weight can be lightened; weight centralization can be improved; the mechanics can be more accessible and, the oil can be eliminated.
[0036] Description of the invention
[0038] To improve, and in some points solve the deficiencies exposed, the present invention proposes a steering system for motorcycles, which simplifies the kinematic complexity, facilitates mechanical accessibility, presents a substantial weight reduction and compacts the center of gravity of the steering wheel. the motorcycle.
[0040] The system of the invention transmits the sensations of the asphalt to the driver.
[0041] Kinematically, their claims do not coincide with the examples described above, or with other similar systems.
[0042] The steering system of the invention is made up of two different kinematic groups called: steering pivot and suspension swingarm.
[0043] The steering pivot comprises:
[0044] • One upper seat post and one lower seat post;
[0045] • Two steering semi-handlebars;
[0046] • Two short steering bars with sliding surface;
[0047] • A rotary steering axle with a sliding surface at its lower end.
[0048] The suspension tipping train comprises:
[0049] • Two anchors that slide through the bars and fix the arms in them;
[0050] • Two long swing arms;
[0051] • An intermediate platform that assembles the arms, is coupled to the steering shaft and houses and fixes the lower anchor of the shock absorber;
[0052] • An axle to anchor and fix the front wheel;
[0053] • An anchor for the brake caliper.
[0054] The two kinematic groups are assembled or coupled through three sliding points, made up of the two bars and the lower end of the system's steering shaft.
[0055] The steering and suspension system for motorcycles of the invention is characterized by the dynamic distribution of the stresses generated by driving, which are channeled through the two swinging suspension arms; The anchors fixed at the upper ends of the arms, transmit them on the two sliding bars and, by means of an intermediate platform that, hereinafter we will call -support-, coupled and fixed in the upper middle part of the arms, they transmit it on the end sliding lower steering axle, extended and specifically reinforced for this purpose.
[0056] Pivot of the steering system of the invention
[0057] The pivoting of the system of the invention works like that of a conventional fork; by means of a shaft, housed in the pipe of the motorcycle chassis, it pivots to the right and left; its geometry maintains the advance, degree of launch and suspension travel.
[0058] • The upper triple clamp of the invention has a triangular body with an oval tendency, with a central through hole and four through pockets to lighten weight.
[0059] It is provided with the following characteristics:
[0060] - Its rear central part is provided with a through hole arranged to house the steering shaft; its front central part is provided with two protruding U-shaped ends drilled by a through hole, arranged to house and fix the upper anchor of the system shock absorber by means of a screw; The lateral ends of its upper floor are provided with two pockets with a central through hole, arranged to house and fix the motorcycle's steering semi-handlebars by means of screws, said pockets, have their sides arranged with a degree of inclination angle, enabled to position the semi-handlebars in such a way that they facilitate driving; The lateral ends of its lower floor are provided with two other round pockets, geometrically coincident with those described on the upper floor, but with their internal cavity in the opposite direction to that of them, arranged to house and fix by means of the screw described above, the upper ends of the two steering slide bars.
[0062] • The two steering semi-handlebars of the invention have a round tube body, semi-perforated at one end to lighten weight and another rectangular ends with a rounded finish, provided with a central countersunk through hole, arranged to be fixed in the seatpost pockets. upper by screws; the square ends, described, are arranged at an angle of inclination with respect to the rest of the body of the semi-handlebars, enabled in such a way as to facilitate the riding of the motorcycle.
[0064] • The lower triple clamp of the invention has a C-shaped body, with a central through hole that houses the steering axle; Its C-shape provides it with an internal space that allows the two arms of the tilting train to pass freely through it.
[0066] It is provided with the following characteristics:
[0068] - On its upper floor, close to the hole in the steering shaft, it is provided with two threaded holes, arranged to fix two screws, whose external heads act as stops for steering rotation; At its ends, it is provided with two round pockets with a central through hole that, geometrically coincide with the pockets provided in the upper stem, but with their internal cavity in the opposite direction, arranged to house and fix by means of screws, the lower ends of the two steering slide bars; its lower floor is provided with six boxes to lighten weight.
[0070] • The two steering rods of the invention have a round tube body with a sliding surface; in the internal cavity of their ends they house bushings inserted under pressure, provided with a central threaded hole, arranged to fix them with screws; the bars are housed and fixed in the pockets of the upper and lower triple clamps.
[0072] • The rotary steering shaft of the invention has a round tube body with two different diameters; it is coupled and fixed between the two bearings housed inside the pipe of the motorcycle chassis.
[0074] It is provided with the following characteristics:
[0076] - The upper end of the shaft is provided with a thread that has two parallel notches in its middle, arranged to perform two functions: One, to immobilize the shaft from the notches with a wrench and, using a nut, to fix it together with all the system components -except for the upper triple clamp-, in the chassis pipe; another, by means of a second lock nut, -after coupling the upper triple clamp-, fix all the components of the system of the invention, on the pipe of the motorcycle chassis.
[0078] - The lower end of the axle is an extra sliding extension, provided to give the necessary suspension travel and, in turn, arranged to withstand the driving stresses next to the sliding bars; Its diameter increases from the limit adjacent to the lower triple clamp and fixes it against the outside of the lower bearing of the chassis pipe.
[0079] Suspension tilt train of the system of the invention
[0081] The tilting suspension train of the invention works like the telescopic system of the conventional fork; by means of two arms coupled with anchors in the sliding bars and, an intermediate support coupled to the lower sliding end of the steering shaft, it performs the geometric path necessary for the absorption or damping of the bumpy pavement; It has the particularity that it is -floating-, it does not stop, against the upper and lower mechanical parts of the suspension stroke.
[0083] • The anchors of the arms of the invention, have a rectangular body, one of its sides is flat provided with two horizontal threaded holes, arranged to anchor and fix the two arms of the tilting train by means of screws, the opposite side is semicircular, provided with a through hole, arranged to house sliding anti-friction bushings that work dry and, fix them by means of security seals; The functionality of the anchors consists of sliding on the sliding bars along the section of the suspension path and, engaging and fixing on the swing arms of the system with screws.
[0085] • The arm anchors described above have a reinforced variant, designed to withstand a higher tension load, they are specific but not limiting, for large displacement or competition motorcycles; They have a round and elongated body that provides them with a wide loading and sliding surface, their upper and lower ends have a shell shape, on their lateral sides they are provided with threaded vertical holes, arranged to anchor and fix the arms of the tilting train; Its internal structure is similar to that of the previous ones, but its housings and components double and, in its upper part, they house two extra retainers; its internal cavities may contain a dose of lubricant.
[0087] • The two tilting arms of the invention have a light metal sheet body, their aesthetics resemble that of an arch, one side has an end-to-end curve to dissipate stress and give robustness, the opposite side is straight , narrowed in its upper section, so that the arm passes loosely through the central internal space of the C-shape, of the lower stem; They are mobile and perform the same function as the suspension bars of the conventional fork; the upper part of the arms has four round through holes of different diameters to lighten weight and, its lower part, several triangular through holes to lighten weight, without diminishing its robustness; the arms are attached to the sliding bars by means of the previously described anchors, fixed with screws.
[0089] • The support of the invention has a rectangular body with four large perforations arranged to lighten weight; Its functionality consists of being attached to the lower end of the steering shaft; join together the two arms of the system; house and fix the lower suspension damper anchor and share the load of the motorcycle driving stresses with the two sliding steering rods.
[0091] It is provided with the following characteristics:
[0093] - In its central rear part, it is provided with a through hole arranged to house an antifriction bushing, fixed by means of a security seal, the lateral flanks of the hole are hollowed out to lighten weight; in its central front part, it is provided with a projection with a central through hole, arranged to house and fix the lower anchor of the suspension shock absorber; the lateral flanks of the projection are hollowed out to lighten weight; the others two sides are provided with threaded holes, two per side, arranged to fix the two arms of the system by means of screws.
[0094] • The wheel axle of the invention has a solid round tube body, the ends of which are provided with threaded holes; it is housed in the internal part of the two arms of the system and is fixed to them by means of screws; On the outer face of the arms, it attaches two hard plastic crash protectors that, in turn, serve as accommodation for the ends of a stand, in order to raise the front end of the motorcycle.
[0095] • The anchor of the brake caliper of the invention has a triangular body whose upper part has been hollowed out in a U-shape to lighten weight; it is provided with two threaded holes at the ends of said U, to anchor the brake caliper; the anchor is coupled and fixed on a projection, provided at the lower end of one of the arms of the system by means of screws.
[0096] Brief description of the drawings
[0097] For a better understanding of what has been exposed, 35 drawings are provided by means of which a prototype has been physically built, schematically and by way of non-limiting example, they represent a practical case of implementation.
[0098] Figure 1 is a perspective of the complete set of the system of the invention, referring to its essential components.
[0099] Figure 2 is a side elevation view of the complete set of the system of the invention, referring to its essential components.
[0100] Figure 3 is a front elevation view of the complete set of the system of the invention, referring to its essential components.
[0101] Figure 4 is a front elevation view of the steering pivot of the invention that locates and references points A, B and C, which support the stresses of the system and, in turn, assemble the two groups of components described above.
[0102] Figure 5 is a perspective of the steering pivot of the invention that illustrates all its components.
[0103] Figures 6 and 7 are a perspective of the upper and lower floors of the upper stem 1 of the invention.
[0104] Figure 8 is a side elevation view of a steering semi-handlebar of the invention.
[0105] Figure 9 is a top plan view of the end of a semi-handlebar.
[0106] Figure 10 is a top / side perspective of the end of a semi-handlebar.
[0107] Figure 11 is a side / bottom perspective of the end of a semi-handlebar.
[0108] Figure 12 is a perspective of the coupling of the two semi-handlebars of the invention in the upper triple clamp 1 which, in turn, illustrates the function of the two screws provided to simultaneously fix: The semi-handlebars, the upper clamp 1 and the bars 4 and 4A.
[0109] Figures 13 and 14 are a perspective of the upper and lower floors of the lower stem 2 of the invention.
[0110] Figure 15 is a perspective of a sliding bar of the invention that illustrates its components.
[0111] Figure 16 is a perspective of the rotary steering shaft of the invention illustrating its components.
[0112] Figure 17 is a perspective of the suspension tilting train of the invention that illustrates all its components.
[0113] Figure 18 is a perspective of an anchor of the invention that illustrates its components. Figure 19 is an internal section of an anchor of the invention.
[0114] Figure 20 is an elevation view of the coupling of an anchor of the invention in an arm. Figure 21 is a perspective of the variant of the anchors of the invention that illustrates its components.
[0115] Figure 22 is a plan view of the upper and lower ends of the variant of the anchors of the invention.
[0116] Figure 23 is an internal section of the variant of the anchors of the invention.
[0117] Figure 24 is a perspective of the coupling of the variant of the anchors of the invention in an arm.
[0118] Figures 25 and 26 are a perspective of the two rocker arms of the invention.
[0119] Figure 27 is a perspective of the support of the invention that illustrates its components.
[0120] Figure 28 is an internal section of the support of the invention.
[0121] Figure 29 is a top plan view of the support of the invention.
[0122] Figure 30 is a perspective of the axle of the front wheel of the invention that illustrates its components.
[0123] Figures 31 and 32 are perspectives of the anchor of the brake caliper of the invention. Figure 33 is a perspective of the anchoring of the brake caliper of the invention in an arm. The colored figure 34 is a front elevation view of the complete assembly of the invention that illustrates the location of the shock absorber coupled in the system and describes the function of the suspension and height adjusters of the front axle of the motorcycle.
[0124] The colored figure 35 is a side elevation view of the complete assembly of the invention that illustrates the location of the damper coupled in the system.
[0125] Description of a preferred embodiment
[0126] The present invention, as illustrated in Figures 1, 2, 3, 34 and 35, refers to a steering and damping system for motorcycles, composed of two different kinematic groups called: Steering pivot and damping swingarm.
[0127] The steering pivot, as illustrated in figure 5, comprises:
[0128] • One upper triple clamp 1 and one lower triple clamp 2;
[0129] • Two semi-handlebars 5 and 5A, housed and fixed on the stem 1;
[0130] • Two bars 4 and 4A with sliding surface, fixed between the posts 1 and 2;
[0131] • A rotary axis 3 steering.
[0132] The damping swingarm, as illustrated in figure 17, comprises:
[0133] • Two anchors 6 and 6A, enabled to slide on bars 4 and 4A;
[0134] • Two arms 7 and 7A, coupled and fixed on the anchors 6 and 6A;
[0135] • A support 8 that slides along axis 3 that joins arms 7 and 7A together and fixes the lower anchor of the system's suspension shock absorber;
[0136] • A shaft 9 that couples the front wheel of the motorcycle;
[0137] • An anchor 10 that fixes the brake caliper.
[0138] The two kinematic groups are assembled or coupled, as illustrated in figures 1, 2, 3 and 4, by means of three points with a sliding surface, made up of the two bars 4 and 4A and the extension provided at the lower end of the steering shaft 3 .
[0139] Characteristics described in the state of the art, according to previous documents.
[0140] The particularity that characterizes the system of the invention resides in its dynamic distribution of the stresses generated by driving the motorcycle, they are supported by a wide base or load platform, composed of three distant sliding points, as illustrated in figure 4 , referenced with the letters A, B and C:
[0141] Anchor 6 is point A and transmits the tension on bar 4; the anchor 6A is point B and transmits the tension on the bar 4A and the support 8 is the point C and transmits the tension on the lower end of the steering shaft 3, this point is the one that supports the greatest pressure system load, specifically strengthened for this purpose.
[0142] This way of supporting and transmitting the stresses of the steering system, reduces the fatigue of the mechanical components.
[0143] Pivot of the steering system of the invention
[0144] The pivoting of the system of the invention works in the same way as that of a conventional fork; by means of the axis 3 of rotation, housed between the bearings located inside the pipe of the motorcycle chassis, it pivots to the right and left; its geometry maintains the advance, the degree of launch and the suspension travel.
[0145] The pivoting of the system of the invention, as illustrated in figure 5, comprises:
[0146] • One upper triple clamp 1 and one lower triple clamp 2;
[0147] • Two semi-handlebars 5 and 5A, housed and fixed on the stem 1;
[0148] • Two bars 4 and 4A with sliding surface, fixed between the posts 1 and 2;
[0149] • A rotary axis 3 steering.
[0151] • The upper triple clamp 1 of the invention, as illustrated in Figures 6 and 7, has a triangular body with an oval tendency, with its structure reinforced by the central rib 1d and four large through pockets arranged to lighten weight; its rear central part is provided with a through hole, arranged to house the steering shaft 3 for articulation with the chassis pipe; Its central front part is provided with two protruding U-shaped ends, 1e and 1f, with a central through hole 1g, which constitute the housing and fixing of the upper anchor of the suspension shock absorber.
[0153] The upper floor of the seat post 1, as illustrated in figure 6, is provided with the following characteristics:
[0155] - The lateral ends are provided with semicircular pockets 1b and 1i, with through holes 1k and 1n in their central part that constitute the housing and fixing of the steering semi-handlebars, are open on their external side and their central lateral sides respective ones, referenced as 1c and 1h, are straight and arranged with a degree of diagonal direction that facilitates the riding of the motorcycle.
[0157] The lower plant of the stem 1, as illustrated in figure 7, is provided with the following characteristics:
[0159] - The lateral ends are provided with the circular pockets 1j and 1m, which constitute the housing and fixation of the upper ends of the sliding bars 4 and 4A, geometrically, they coincide with the semicircular pockets 1b and 1i of the upper plant of the stem , but with their internal cavity in the opposite direction to theirs, in their central part, they are provided with through holes 1k and 1n; Its central rear part is provided with the shallow pocket 1l, which constitutes the housing of the nut 3c (see figure 6) that fixes the steering shaft 3.
[0161] • The two steering semi-handlebars of the invention 5 and 5A, as illustrated in Figures 8 and 12, have a round body, with one end drilled up to its upper middle part to lighten weight and, at the other solid, rectangular end, rounded in its end, provided to fit into the pockets arranged on the upper floor of seat post 1.
[0163] As illustrated in Figures 8, 9, 10, 11 and 12, they are provided with the following characteristics:
[0164] - The steering semi-handlebars of the invention 5 and 5A, as illustrated in figure 12, are attached to the open semicircular pockets 1b and 1i, provided at the ends of the upper floor of the stem 1 and are fixed to them by means of the screws 4a and 4Aa; Its round ends, as illustrated in figure 8, are perforated, according to 5a, up to its upper middle part to lighten weight and, its square ends are arranged at an angle, according to 5b, with respect to the rest of its round body, to enable a degree of inclination, which positions them in a way that facilitates the riding of the motorcycle; Its square ends, as illustrated in Figures 9 and 10, have the upper side 5c, two lateral sides 5i and 5g, the countersunk through hole 5d and its rounded end 5e; its square ends, as illustrated in figure 11, have the lower side 5f, and the lower side part 5h, which gives the angle of inclination described in a previous paragraph.
[0166] • The lower triple clamp 2 of the invention, as illustrated in Figures 13 and 14, has a C-shaped body, which enables it to have a space between its front ends internal, arranged so that the two arms 7 and 7A of which the suspension tilting train consists, pass loosely between it; Its rear central part is provided with a through hole 2a, arranged to house the steering shaft 3.
[0168] The upper floor of the seat post 2, as illustrated in figure 13, is provided with the following characteristics:
[0170] - It is provided with threaded holes 2d and 2e, close to the central hole 2a, which fix the screws 2i and 2j, arranged so that their round upper external heads act as stops for the turning radius of the system direction; its ends are provided with the round pockets 2b and 2g, geometrically coincident with the round pockets 1j and 1m, provided in the upper stem 1, but with their internal cavity in the opposite direction to that of them; the round boxes 2b and 2g, constitute the housing and fixing of the lower ends of the two sliding bars 4 and 4A, fixed with the screws referenced as 4f, which enter through the through holes 2c and 2h.
[0172] The lower plant of the seat post 2, as illustrated in figure 14, is provided with the following characteristics:
[0174] - It is provided with six pockets, according to reference 2k and, with another four semicircular pockets concentric to the hole 2a, according to reference 21, arranged to lighten weight.
[0176] • The steering rods of the invention 4 and 4A, as illustrated in figure 15, have a round tube body with a sliding chrome surface, the internal parts of their ends house bushings arranged to fix them on the posts 1 and 2; its upper ends are housed and fixed in the pockets 1j and 1m, provided in the upper stem 1 and, its lower ends, in the pockets 2b and 2g, provided in the lower stem2;
[0178] They are provided with the following characteristics:
[0180] - Its internal ends house the bushings referenced as 4c and 4e inserted under pressure, provided with threaded central holes referenced as 4b and 4d; the ends of the bars are fixed on the posts 1 and 2, by means of the threaded holes 4b and 4d, with the screws referenced as 4a and 4f; the thread diameter of the bushing 4b is greater than the thread diameter of the bushing 4e.
[0182] • The rotary steering shaft of the invention 3, as illustrated in figure 16, has a round tube body with two different diameters, according to reference 3g, its upper end 3d is threaded; it is coupled and fixed between the two bearings housed inside the pipe of the motorcycle chassis and, by extension, also couples all the components of the system of the invention.
[0184] It is provided with the following characteristics:
[0186] - The upper end of shaft 3 is provided with a 3d thread, with two parallel notches referenced as 3e, in its middle part; The parallel notches referenced as 3e, are intended to immobilize the axis 3, using a wrench, while the fixing nut 3c, fixes it together with all the components of the system, -except the upper triple clamp-, in the pipe of the chassis of the motorcycle; a second lock nut 3c, -after coupling the upper triple clamp- on shaft 3, securely and definitively fixes all the components of the system of the invention, on the pipe of the motorcycle chassis.
[0187] The lower end of axis 3, referenced as 3g, is an extra extension with a sliding surface, the length of which corresponds to the suspension travel of the system; the lower end of shaft 3 referenced as 3g, has its diameter increased with respect to that of the rest of the body of shaft 3; the upper part of the end 3g, borders the lower plant of the seat post 2, so that its increased diameter serves to fix it against the lower bearing of the chassis pipe; the lower end of shaft 3 referenced as 3g, engages the support 8 by means of the sliding anti-friction bushing 8g, housed in its hole 8a; the lower end of shaft 3 referenced as 3g, synchronized with support 8, constitutes point C (see figure 4), of load or support of the driving stresses, which has been specifically reinforced for this purpose.
[0189] Suspension tilt train of the system of the invention
[0191] The tilting suspension train of the invention works in the same way as the telescopic system of the conventional fork; by means of the arms 7 and 7A, coupled by the sliding anchors 6 and 6A in the bars with sliding surface 4 and 4A, it slides up and down them; the bars provide the geometric path necessary to absorb or cushion the bumpy pavement.
[0193] The suspension of the invention has the particularity of being -floating-, that is, it does not make mechanical stops against the upper and lower parts of its travel.
[0195] The damping tilting train of the system of the invention, as illustrated in perspective figure 17, comprises:
[0197] • Two anchors 6 and 6A, enabled to slide on bars 4 and 4A;
[0198] • Two arms 7 and 7 A, coupled and fixed on the anchors 6 and 6A;
[0199] • A support 8 that slides along axis 3 that joins arms 7 and 7A together and fixes the lower anchor of the system's suspension shock absorber;
[0200] • A shaft 9 that couples the front wheel of the motorcycle;
[0201] • An anchor 10 that fixes the brake caliper.
[0203] • The anchors 6 and 6A of the invention, as illustrated in Figures 18, 19 and 20, have a rectangular body, one of their sides is flat and the opposite is semi-circular; they are coupled and slide on the bars with sliding surface 4 and 4A and, in turn, are anchored and fixed on the arms 7 and 7A, of the system's suspension tilting train.
[0205] They are provided with the following characteristics:
[0207] - As illustrated in perspective figure 18, one side is provided with threaded holes 6a and 6b, arranged to fix the anchors at the upper ends of arms 7 and 7A by means of screws.
[0209] - The anchors 6 and 6A, as illustrated in Figures 18 and section 19, are provided with the internal cavity 6f, arranged to house the sliding anti-friction bushings 6c, which work dry and withstand high temperatures, fixed by means of the 6d seal; the upper part of the hole 6f, is provided with a short projection 6e, so that it acts as a stop for the bushing 6c, but allows the sliding bars 4 and 4A to pass through it; the lower part of the hole 6f is provided with the internal groove 6g, arranged to house the security seal 6d which fixes the anti-friction bushing 6c.
[0210] - As illustrated in raised figure 20, the anchors 6 and 6A are coupled to the sliding bars 4 and 4A, and in turn, they also anchor the rocker arms 7 and 7A of the system.
[0212] • The anchor referenced as 6B, as illustrated in figures 21, 22, 23 and 24, is a variant of those described above; It is designed in order to withstand a higher tension load, through a wider sliding surface; They exert the same mechanical function and their basic configuration is similar; It has a round and elongated body, the upper and lower parts of which, as illustrated in plan figure 22, have a shell shape; Its internal structure, as illustrated in figure 23, bends the housings and components of the previous ones and its two ends house retainers.
[0214] They are provided with the following characteristics and components:
[0216] - The anchors 6B, as illustrated in perspective figure 21, are provided with vertical threaded holes 6Ba and 6Bb, arranged to couple the arm 7B by means of screws; the anchors 6B, as illustrated in raised figure 24, are coupled to the bars with sliding surface 4 and 4A, anchoring in turn the arms referenced as 7B (modified for this variant), by means of the screws 6Ba and 6Bb.
[0218] Its internal cavity, as illustrated in figure 23, is provided with housings 6Bk and 6Bm, arranged to house the sliding anti-friction bushes 6Be and 6Bf; of the internal slots 6Bj and 6Bn, arranged to house the security seals 6Bd and 6Bg, which fix the sliding bushings; of the housings 6Bi and 6Bñ, arranged to house the seals 6Bc and 6Bh; the internal cavity referenced as 6BI, if applicable, may contain lubricant;
[0220] • The arms 7 and 7A of the invention, as illustrated in Figures 25 and 26, present a body made of a light metal plate whose aesthetics resembles an arc, one of its sides has an end-to-end curvature to dissipate tensions and give it robustness, the other side is straight and, its upper parts 7k and 7Ak, narrow, so that the arms pass loosely through the internal central space 2f, arranged in the shape of a C of the lower triple clamp 2; the upper middle part of the arms, presents four round through holes of different diameters to lighten weight, its lower middle part, presents several triangular through perforations to lighten weight, without reducing its resistance and robustness; they are mobile and are assembled between them by means of support 8; arms 7 and 7A perform the same function as the suspension bars of the conventional fork.
[0222] Arm 7A, as illustrated in figure 25, is provided with the following characteristics:
[0224] Its upper end is provided with the non-limiting countersunk head horizontal through holes 7Aa and 7Ab, arranged to fix the sliding anchor 6A; the upper part of its straight side 7Ak, narrows to pass through space 2f of seat post 2; its upper middle part is provided with the non-limiting countersunk head horizontal through holes 7Ac and 7Ad, arranged to fix the support 8; its medial side part is provided with non-limiting countersunk head vertical through holes 7Ae and 7Af, arranged to fix the wheel fender; its lower end is provided with the central through hole 7Ag, arranged to house the axle 9 of the front wheel of the motorcycle.
[0226] Arm 7, as illustrated in figure 26, is provided with the following characteristics:
[0227] Its upper end is provided with non-limiting countersunk head horizontal through holes 7a and 7b, arranged to fix the sliding anchor 6; the upper part of its straight side 7k, narrows to pass through space 2f of seat post 2; its upper middle part is provided with non-limiting countersunk head horizontal through holes 7c and 7d, arranged to fix the support 8; its medial side part is provided with non-limiting countersunk head through vertical holes 7e and 7f, arranged to fix the wheel fender; its lower end is provided with the central through hole 7g, arranged to house and the axle 9 of the front wheel of the motorcycle; Its lower end is provided with an extra extension 7h, arranged diagonally, enabled in order to serve as an anchoring platform for the brake caliper 10, fixed by screws through the through holes 7i and 7j.
[0229] • The support 8 of the invention, as illustrated in Figures 27, 28 and 29, has a rectangular body which, in the central part of its rear side, is provided with the through hole 8a arranged to house the lower end of the shaft 3 and, in the central part of its opposite front side, it is provided with the projecting end 8d, arranged to house and fix the lower anchor of the shock absorber; It has four semicircular recesses of material arranged to reduce weight; the support 8, as described at the beginning of this preferred embodiment, is the load point C (see figure 4), which supports most of the stresses generated by driving the motorcycle.
[0231] It is provided with the following characteristics:
[0233] - The central part of its rear side is provided with a through hole 8a arranged to house inside the sliding antifriction bushing 8g, fixed by the seal 8h; the central part of its front side is provided with a projecting end 8d with the central through hole 8e, arranged to house and fix, by means of the screw 8f, the lower anchor of the suspension shock absorber of the system; on its two lateral sides, on each one, it is provided with two threaded holes 8b, 8c and 8i, 8j, arranged to assemble and fix the arms 7 and 7A together, by means of screws.
[0235] • The axle 9 of the front wheel of the invention, as illustrated in perspective figure 30, has a solid round tube body, the ends of which are provided with threaded holes 9c and 9h.
[0237] It is provided with the following characteristics:
[0239] It is housed between the through holes 7Ag and 7g (see figures 25 and 26) located at the lower ends of the arms 7 and 7A; In the external parts of the arms, it couples and fixes the hard plastic fall protectors 9d and 9g, provided with a housing arranged to fit a stand, in order to raise the front axle of the motorcycle; the screws 9c and 9h jointly fix: The axle, the arms and the fall arrest protectors.
[0241] • The anchor 10 of the invention, as illustrated in perspective figures 31, 32 and 33, has a triangular body, with its upper central part hollowed out in a V to lighten weight.
[0242] It is provided with the following characteristics:
[0244] - The ends of the V, as illustrated in figure 31, are provided with threaded holes 10a and 10d, arranged to anchor and fix the front brake caliper of the motorcycle; his lower end, as illustrated in figure 32, on one of its faces, presents a square recessed notch 10e, arranged to engage it with the projection 7h provided at the lower end of the arm 7 (see figure 26); said recessed notch at its lower end is provided with threaded holes 10b and 10c which, as illustrated in figure 33, are arranged to fix it on the arm 7, by means of countersunk head screws.

权利要求:
Claims (15)
[1]
1. Steering and suspension system for motorcycles, composed of two kinematic groups called: steering pivot and suspension swingarm.
The steering pivot includes:
• One upper triple clamp (1) and one lower triple clamp (2);
• Two steering semi-handlebars (5) and (5A), housed and fixed on the seat post (1);
• Two sliding surface bars (4) and (4A), housed and fixed on the posts (1 and 2); • A rotary steering shaft (3).
The suspension tipping train includes:
• Two anchors (6) and (6A), enabled to slide along the bars (4 and 4A), of which there is a variant that supports a higher stress load;
• Two arms (7) and (7A), coupled and fixed on the sliding anchors (6 and 6A);
• A support (8) that slides along the shaft (3) that assembles the arms (7 and 7A) and, at one of its ends, fixes the lower anchor of the suspension shock absorber of the system;
• A shaft (9), which couples and fixes the front wheel of the motorcycle;
• An anchor (10) that couples and fixes the brake caliper.
System that assembles or couples the two kinematic groups described, by means of three points of sliding surface, made up of the two bars (4 and 4A) and the lower end of the steering shaft (3).
System that does not require any modifications to the motorcycle chassis to be coupled, it is coupled and fixed, through the shaft (3), between the two bearings located inside the chassis pipe, which enable it to pivot to the right and left; its geometry maintains the advance, the degree of launch and the suspension travel.
System, lightened in weight and components that optimizes the centralization of weight.
Characterized by the fact that, the tensions of the front end of the motorcycle, are supported and distributed dynamically, by means of a base or wide platform composed by three distant points from each other, referenced as (A), (B) and (C).
[2]
2. System according to the preceding claim which, in its support and dynamic distribution of stresses, comprises:
The anchor (6) referenced as point (A), which transmits the tension on the sliding bar (4); the anchor (6A) referenced as point (B), which transmits the tension on the sliding bar (4A) and, the support (8) referenced as point (C), which supports a greater tension than the previous points and transmits it in the lower sliding part of the steering axle (3), reinforced for this purpose.
Steering pivot of the invention
[3]
System according to any of the preceding claims, in which the upper triple clamp (1) has an oval triangular body; with four through pockets to lighten weight; reinforced with the central rib (1d); with a central through hole (1a) for articulation with the chassis pipe and, two protruding ends in its front U-shaped part (1e and 1f), drilled by a central through hole (1g), arranged to house and fix the suspension damper upper anchor; the ends of its upper floor are provided with pockets (1b) and (1i) that house and fix the semi-handlebars (5 and 5A), are semicircular and open on the external side, with two central sides (1c) and ( 1h) straight and parallel, oriented at an angle, so that they provide a degree of directing to the semi-handlebars (5 and 5A) that are fixed to them through the through holes (1k) and (1n) with screws; The lateral ends of its lower floor are provided with two round pockets (1j) and (1m), geometrically positioned with respect to the pockets (1b and 1i) of its upper floor, but with their internal cavity oriented in the opposite direction, arranged to house the upper ends of the steering bars with sliding surface (4 and 4A) and fix them through the through holes (1k) and (1n) with screws; the central part of its lower plant is provided with the round box (11), arranged to house the nut (3c) that fixes the steering shaft (3) in the chassis pipe.
[4]
4. System according to claim 3, in which the semi-handlebars (5) and (5A) have a round tube body, with one end perforated to lighten weight and another end with a rectangular finish at its end, arranged so that provides an angle of inclination (5b) and (5h) with respect to the rest of the round body, provided with two parallel horizontal flat sides (5c) and (5f), two parallel vertical flat sides (5g) and (5i), the central hole through (5d) and, finished in a semicircular shape (5e); They are attached to the pockets (1b and 1i), arranged on the upper floor of the stem (1) and, by means of the through holes (1k and 1n), they are fixed with screws.
[5]
System according to any of the preceding claims, in which the lower stem (2) has a C-shaped body (2f) that enables an internal space between its front side ends, arranged so that the arms (7 and 7A) pass between it and, provided with a central through hole (2a) that houses the steering shaft (3); The middle central part of its upper floor is provided with two threaded holes (2d) and (2e), arranged so that the round outer heads of the screws (2i) and (2j) act as stops for the system's direction rotation ; the ends of its upper floor are provided with round pockets (2b) and (2g), geometrically positioned with respect to the pockets (1b and 1i) of the lower floor of the upper stem (1), but with their internal cavity oriented in the opposite direction, arranged to house the lower ends of the bars (4 and 4A) and, fix them through the through holes (2c) and (2h) with screws; Its lower floor is provided with six pockets with different geometries, referenced as (2k) and, four semicircular pockets referenced as (2I), concentric to the central hole (2a), in order to lighten weight, without reducing robustness.
[6]
System according to claims 3 and 5, in which the steering and sliding bars (4) and (4A) have a round hollow tube body which, at their internal ends, house the bushings (4c) and (4e) , provided with threaded holes (4b) and (4d); its upper ends are housed in the pockets (1b and 1i) provided in the upper stem (1) and, its lower ends, in the pockets (1j and 1m) provided in the lower stem (2); they are fixed through the through holes (1k and 1n) of the upper triple clamp (1) and the through holes (2c and 2h) of the lower stem (2), by means of the screws (4a) and (4f); the screws (4a) have a larger diameter than the screws (4f).
[7]
7. System according to claims 3, 5 and 6 in which the steering shaft (3) has a round tube body comprising two sections with different diameter; Its upper end is provided with the thread (3d) which, in its middle part has two notches parallel to each other, referred to as (3e) and, its lower end (3g) with a sliding surface; the threaded upper end (3d), using a wrench housed in the notches (3e) immobilizes the shaft (3) and, using the nut (3c), - except for the upper triple clamp (1) -, fixes the shaft (3) between the two bearings located inside the chassis pipe; in a subsequent operation, -the upper triple clamp (1) is coupled - and the washer (3b) and, by means of a second lock nut (3a), they securely fix the axle (3) in the chassis pipe; Its lower end, referenced as (3g), is an extension of the length of the shaft with a sliding surface that comprises the necessary section of the system's damping path, arranged to house the hole (8a) of the support (8); the lower end (3g), at its upper limit, adjoins the lower seatpost (2) which, together with the washer (3f), fix the seatpost against the lower bearing located in the chassis pipe;
Damping swingarm of the invention
[8]
8. System according to any of the preceding claims that couples a suspension shock absorber and fixes its upper anchor on the seat post (1) and the lower anchor on the support (8); Preferably, the shock absorber must incorporate a mechanism that regulates the distance between its two anchor points. By adjusting it, the system of the invention rapidly varies the height of the motorcycle's front axle.
[9]
9. System according to any of the preceding claims, whose damping path is floating, that is, it does not make mechanical stops, neither at the top of the compression path, nor at the bottom of the expansion path; The suspension travel of the system is enabled by the two steering and sliding bars (4 and 4A) and the sliding extension provided on the steering shaft (3).
[10]
10. System according to any of the preceding claims, provided with two sliding anchors (6) and (6A), which have a rectangular body, with a semicircular side, two chamfered sides and a straight side with two threaded holes referenced as (6a ) and (6b), arranged to fix the anchors at the upper ends of the arms (7 and 7A) through the through holes (7a and 7b) and (7Aa and 7Ab), by means of screws; The sliding anchors (6 and 6A) are coupled to the sliding bars (4 and 4A), and in turn, through them, the rocker arms (7 and 7A) of the system are coupled.
The anchors (6 and 6A) are provided with through holes referenced as (6f), enabled to house the sliding anti-friction bushings referenced as (6c); The upper parts of the through holes (6f) are provided with short, circular projections, referenced as (6e), so that they act as a stop for the bushings (6c), but allow the sliding bars (4 and 4A ) pass through you; The lower parts of the through holes (6f) are provided with circular internal grooves, referenced as (6g), arranged to house the security seals referenced as (6d) that fix the anti-friction bushings (6c).
[11]
System according to claim 10 above that has a variation of the described anchors, designed to withstand a higher tension load, perform the same function and basically have a similar internal structure; The differences are briefly described below:
The variant of the anchors (6 and 6A), referenced as (6B), has a round and elongated body that provides it with a wide sliding surface, its upper ends and lower they have a shell shape; The flat lateral parts of their upper and lower ends are provided with threaded vertical holes, referenced as (6Ba) and (6Bb), arranged to fix the anchor (6B) on the arm referenced as (7B) and, couple both, in the sliding bars (4 and 4A); Its internal structures, are like those of the anchors (6 and 6A) but double their housings and components, they are provided with housings referenced as (6Bk) and (6Bm), arranged to house the bushings referenced as (6Be) and (6Bf ); its internal grooves, referenced as (6Bj) and (6Bn), house the security seals referenced as (6Bd) and (6Bg), which fix the antifriction bushings (6Be and 6Bf); its internal central parts, referenced as (6BI), may contain lubricant; Its internal ends are provided with housings referenced as (6Bi) and (6Bñ), arranged to house the retainers referenced as (6Bc) and (6Bh).
[12]
12. System according to any of the preceding claims, provided with two tilting arms (7 and 7A), which have a body of light metal plate, whose aesthetics resembles an arch, one side is semicircular from end to end with the In order to dissipate tensions and give robustness and, another side is straight, narrowed in its upper middle part (7k and 7Ak), in order that the arms (7 and 7A) pass loosely through the internal central space (2f) arranged in the C-shape of the lower triple clamp (2); the upper part of the arms has four round through holes with different diameters, arranged to lighten weight and, its lower middle part, has several triangular through holes, arranged to lighten weight, without diminishing robustness; at their upper ends, they are provided with the horizontal through holes (7a and 7b) and (7Aa and 7Ab), arranged to be assembled in the sliding anchors (6) and (6A) respectively, by means of screws; In their upper middle part, they are provided with horizontal through holes (7c and 7d) and (7Ac and 7Ad) arranged so that, by means of the support (8), they are assembled or coupled together, by means of screws; in their central lateral part, they are provided with vertical through holes (7e and 7f) and (7Ae and 7Af), arranged to assemble by means of screws, the fender of the front wheel of the motorcycle; At their lower central end, they are provided with round through holes (7g and 7Ag), arranged to house and fix the axle (9) of the front wheel of the motorcycle; The lower end of the arm (7) is provided with a diagonal extension (7h) with two through holes (7i) and (7j), arranged to anchor and fix the brake caliper (10), by means of screws.
[13]
System according to any of the preceding claims, provided with a support (8) which is the support point (C) of the driving stresses of the motorcycle, arranged to assemble the two arms of the system together; to house and fix the lower anchor of the shock absorber and, through a central hole, to be coupled to the steering shaft (3); It has a rectangular body that, on one of its sides, has a central through hole (8a) that houses the sliding antifriction bushing (8g), fixed by the seal (8h), by means of which it engages and slides through the lower end (3g) of the steering shaft (3), the two side flanks of the hole (8a) are hollowed out to reduce weight; The central part on the opposite side to the previous one, has the projecting end (8d) perforated with the through hole (8e), enabled to house and fix the lower anchor of the system shock absorber, by means of the screw referenced as (8f), the flanks sides of the projecting end (8d), are recessed in a U-shape to reduce weight; Its other two lateral sides, have threaded holes (8b) and (8c) arranged on one side and (8i) and (8j) on the other side, enabled to assemble the arms (7 and 7A) of the system together by means of Screws, the sides, are recessed with chamfers to lighten weight.
[14]
System according to any of the preceding claims which is provided with an axle (9), arranged to couple the front wheel of the motorcycle, has a solid round body, provided with threaded holes at its ends; the shaft (9) is housed between the two through holes (7g and 7Ag) located at the lower ends of the arms (7 and 7A) and is fixed by means of the screws (9c) and (9h); It is provided with bushings (9e) and (9f), the part of which central, is perforated to adapt to the diameter of the axle (9), arranged to center the rim of the front wheel; It is provided with two hard plastic fall protectors (9d) and (9g), attached to the outside of the arms (7 and 7A), enabled to fit a stand, in order to raise the front of the motorcycle, fixed with screws (9c) and (9h).
[15]
System according to claim 12, which is provided with an anchor (10) arranged to anchor and fix the brake caliper of the front wheel of the motorcycle, has a triangular body, with its upper part hollowed out in a V, arranged to lighten weight; the two upper ends of the V are provided to house the brake caliper and fix it by means of the threaded holes (10a) and (10d); its lower part has a square recessed notch (10e) that enables it to be coupled with the diagonal extension (7h), arranged at the lower end of the arm (7), whose end end also ends square; The flat surface of its square lowered notch (10e) is provided with two threaded holes (10b) and (10c), arranged to fix it on the square lowered end (7h) of the arm (7), by means of screws.

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同族专利:

公开号 | 公开日

ES2784917B2|2021-09-17|

引用文献:

公开号 | 申请日 | 公开日 | 申请人 | 专利标题

WO1987001670A1|1985-09-17|1987-03-26|Terence Anthony Haynes|Improvements to motorcycle front suspension|

FR2860765A1|2003-10-14|2005-04-15|Jean Dominique Georges Gazzera|Front suspension system for use in motorcycle/scooter, has single suspension arm with upper part ensuring functioning of lower crosshead connected to swing arm by knuckle joint placed in axis of rotation|

WO2017115393A2|2015-12-31|2017-07-06|Berti Giacomo|Motorcycle with multi-configuration chassis|

WO2017209606A1|2016-06-02|2017-12-07|Tractive Suspension B.V.|Front fork assembly, front fork comprising the same, and motorcycle|

法律状态:
2020-10-02| BA2A| Patent application published|Ref document number: 2784917 Country of ref document: ES Kind code of ref document: A1 Effective date: 20201002 |

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优先权:

申请号 | 申请日 | 专利标题

ES202000114A|ES2784917B2|2020-07-03|2020-07-03|Steering system for motorcycles|ES202000114A| ES2784917B2|2020-07-03|2020-07-03|Steering system for motorcycles|

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