• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Directional control system for snow vehicles, suitable for equipping vehicles of the snowmobile type or more specifically of the snowmobile type of foot driving (1), which start from a basic configuration of, at least, two front skis (4a, 4b) and a rear caterpillar (3). The system acts independently on one or the other ski, and depending on the change of trajectory left or right, the pilot can activate the system of the right ski or the left ski, by means of a mechanism that can be manual or assisted, which makes tilt arms (5a, 5b) and rotating forearms (6a, 6b) that, on the one hand, allow an easy and stable lateral inclination of the snowmobile, and on the other hand, generate a multiple orientation and simultanee on the ski (4a) or (4b), which gives the snowmobile high maneuverability and efficient trajectory control. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2665787A1
    申请号:ES201600910
    申请日:2016-10-26
    公开日:2018-04-27
    发明作者:Pablo Ferrer Almazan
    申请人:Pablo Ferrer Almazan；
    IPC主号:
    专利说明:

     DIRECTIONAL CONTROL SYSTEM FOR SNOW VEHICLE.  TECHNICAL SECTOR 5 The present invention pertains to the sector of motor vehicles that are specially developed to travel on snowy terrain.  This type of vehicle is popularly known as snowmobile.  Within the snowmobile segment we can find different sizes, engines and configurations with one or two front skis that are usually coupled to a mobile handlebar that allow steering control, a single-seater or two-seater seat to accommodate the pilot, and one or two rear tracks that provide traction.  The directional control system presented here can be applied to some types of snowmobiles that choose to have a configuration of at least two front skis for stability and a rear track that provides traction.  Among these, we can highlight the light snowmobiles of the type, "foot driving or stand-upD, which is where this directional control system can best adapt and provide greater maneuverability.  In addition, this lightweight type of snowmobile, due to its remarkable low weight, is a practical, efficient, economical solution and allows to reduce pollution by a high percentage, better adjusting to a sustainable development of the planet, compared to the classic snowmobiles of greater weight and volume  25 BACKGROUND OF THE INVENTION The snowmobile concept with a configuration of two front skis and rear track is the most popular type of snow vehicle, both for personal travel needs and for recreational activities.  With its three points of support on the ground, considering, right skiing, left skiing and rear track, we obtain good stability, safety, control, traction and buoyancy of the vehicle on snow.  The skis are coupled to the snowmobile chassis by means of different elements that allow them to have support, and mobility in a specific orientation.  In turn, from a control element, such as a rotating handlebar, the pilot orients the skis parallel to the left or right, thus controlling the vehicle's trajectory.  The configuration of these traditional steering systems, in their vast majority, have been developed to operate and move the snowmobile horizontally to the ground plane, this creates some consequences on the turning performance, such as: • The pilot receives a considerable lateral centrifugal inertia in medium and high speed curves.  The effect is more evident in snowmobiles of type "foot driving" since the position of the pilot raises the center of gravity.  2 DESCRIPTION• The track works horizontally to the ground during cornering and creates great resistance to lateral sliding.  Consequently, the negative "understeer" effect appears on skis, losing efficiency in the turn.  • The skis need to maintain parallelism between them and horizontality of 5 support with the ground, this forces in many cases to incorporate an elaborate and considerable suspension system.  Otherwise, the skis lose contact with the ground and turning capacity.  Certain snowmobiles of traditional concept, meaning with two front skis 10, a mobile handlebar to control the skis, a rear track and a seat for the pilot, have tried to alleviate these problems with the following inventions. US Patent 3,550,706; US Patent 3,583,507; US Patent 3,664,446; US Patent 3,734,219; US Patent 3,777,831 In all of them it is a question of applying lateral inclination when we draw a curve.  More specifically, in US Patent 3,550,706 skis are fixed to the snowmobile chassis by a perpendicular arm, which through a rotating mobile handlebar gives the skis axial and radial movement simultaneously.  The radial movement guides both of them in the direction of the path to be taken, but the axial movement is applied inverse on each ski, 20 which causes the vehicle to tilt to the left or right.  The aforementioned inventions differ greatly from the innovation presented in this report, among other things because: • All of them use a steering system with mobile handlebars.  25 • All of them orient both skis simultaneously.  • They lack an automatic spring system return system, which helps stabilize the vehicle horizontally when the curve ends.  • Due to this configuration of their systems, the irregularities of the terrain allow involuntary and uncontrolled movements to be sent to the mobile handlebar.  Within the snowmobile sector with two skis but of the "standing" or "stand-up" type, we find the patent W001 / 81160 (Kuusinen), figure20.  A standing snowmobile with option of one and two front skis, and 35 standard classic steering of mobile handlebars.  The functionality of this snowmobile is always horizontal to the terrain.  The patent is also known {US Patent 7,815,003 B2). "Motorized Snow Vehicle" with a different steering system than everything discussed above.  www. arcticmotors com 40 (The holder and inventor of said patent corresponds to the same applicant who submits the current application and descriptive report of the "Snow Vehicle Directional System).  This transportable and light snow vehicle also has two front skis and a rear track, but the change of trajectory is achieved by two simultaneous factors, the special design of the skis and the inclination of the vehicle when drawing the curves.  Neither the handlebar nor the skis have joints or rotation axes.  When the pilot tilts the vehicle laterally with its own weight, it causes the concave-curved side of the carving edge to develop a curved path on the snow.  3DESCRIPTION OF THE INVENTION The invention described herein is intended to offer an efficient solution that allows the evolution of smaller, lighter and cheaper vehicles, as a consequence of lower consumption, lower pollution and greater sustainability with the environment.  This does not mean that such vehicles lose recreational or functional skills in their use due to snow.  This directional control system for snowmobiles, preferably of the type "foot driving", employs two front skis positioned to the left and 10 right of the snowmobile and longitudinally to the direction of travel, the proper positioning of the skis when the system is activated to turning gives the vehicle high maneuverability.  This system is not known in previous inventions.  15 Depending on the direction we wish to move, left or right, the pilot, by means of a manual or assisted mechanism activates the left or right ski system, since they are symmetrical but independent in their operation.  The activation applies to the ski a simultaneous movement effect resulting in a rotation of the x, y, z axes, with respect to its neutral position, referring to this neutral position when the vehicle is traveling in a straight line or the system has not started the cycle of rotation of the mechanisms.  Each ski has at least one swing arm, said arm or arms can be arranged longitudinally with respect to the snowmobile or transverse, since in both cases they allow an up and down movement of the ski, with respect to the ground plane.  This greater ground clearance of one of the skis in front of the other, which has remained neutral, is what brings the lateral inclination of the vehicle.  During the upward travel of the ski, in this case, through a longitudinal arm 30, the X-axis rotation of said ski is given by the point of rotation of the swingarm.  Simultaneously other joints add to the ski rotation on Z and Y axis.  The direction of rotation in both Z and Y, coincide in the same direction that we want to guide the snowmobile.  Also, the swingarms have a spring-type element of 3S gas or spring or both, which forces to keep said arms in a neutral position, in this way the arms cannot swing or ascend until the pilot unlocks and activates the system, and overcome the resistance provided by said springs or springs.  This type of springs is provided by the industry in a multitude of lengths, capacities, configurations and 40 applications. The directional control system can be activated and start the cycle manually, with a tilting pedal mechanism that pulls a traction saw by a Road with roller guide or rods with rocker.  Also through the pedal it is possible to activate the system semi-assisted or fully assisted, as it could be by means of a hydraulic, pneumatic or electric circuit, with servo motors or pressure pumps.  However, the manual system, due to its low weight and simplicity, is the most versatile to be applied in snowmobiles of the type "foot driving".  4These independent pedals are located on the rear and side of the snowmobile where the pilot is located.  The left pedal houses the left foot and the right pedal houses the right foot.  The pedal can be tilted through the pilot's foot, because, in the most basic case of 5 configuration, it has at least one transverse axis.  In this way, by tilting the pedal you can tighten a sierga that allows the rotation and elevation of the tilting arm together with the right or left ski depending on the side that we have activated.  10 Because this system provides inclination to the vehicle when cornering, it is especially suitable for the configuration of some light snowmobiles of the "standing driving" type that have a high center of gravity, as a result of the pilot's standing position.  As a result of the different factors involved in this system, 15 such as the easy and intuitive activation of the pedals, the easy lateral inclination of the vehicle, the positioning of the pilot and the simultaneous orientation of triple effect applied on the skis we find the following advantages .  • The system allows the lateral inclination of the pilot and the vehicle 20 to be maintained throughout the curve, both at high and low speed, even when stopped.  This is due to the obtuse angle that is formed, when the system is activated, between the side of the track and the side of the ski.  • The optimal positioning of the skis allows efficient guidance and change of trajectory through its side and edge.  25 • The track in a laterally inclined position provides less resistance than lateral sliding in the curves, so that the skis do not suffer the negative "understeer" effect.  • Due to the inclination of the vehicle when cornering, the pilot does not perceive centrifugal inertia to expel him outside the curve.  BRIEF DESCRIPTION OF THE DRAWINGS To complement the description that is going to be made below, and in order to help a better understanding of the characteristics of the 3S invention, it is accompanied as an integral part of the present descriptive report, of a set of drawings, in whose figures in an illustrative and non-limiting manner, the most characteristic details of the invention are represented.  Figure 1. - It shows a perspective of the directional control system in a neutral position, without activating, applied to a snowmobile of the type "stand-up or foot driving".  Figure 2 -Shows a perspective that reflects the dynamic effect of the directional control system when it is in operation.  Detail of the 4S footprints in the snow and the position of the skis with respect to an x, y, z plane.  The system allows lateral inclination to be maintained at a very low speed without the need for lateral centrifugal inertia that compensates for the inclination of the pilot.  55 Figure 3. -Shows a perspective of the directional control system, activated on the left ski, to turn left.  The figure allows comparison by the position of the axes x ', y', z ', unlike positioning with respect to the right ski that is not driven.  Figure 4 -Shows a completely frontal view of figure 3 where you can see from another angle, the orientation and position taken by skis when the system is activated.  10 Figure 5. -Shows a frontal view of the dynamic effect, which because of the proper predisposition of the left ski, has allowed the pilot to tilt the snowmobile in an easy way, being supported on the left ski and the left side of the track, which form an obtuse angle .  15 Figure 6. -Shows a perspective of the management system and its elements, in a neutral position.  The right side is symmetrical to the left side.  Each side has its activation pedal.  Figure 7 -Shows a perspective of the steering system and its elements 20 in this case on the left side, when activated.  The direction of rotation of some moving elements is marked.  Figure 8 -Shows a semi-assisted mechanism, which activates the steering system through another servant or additional rod, thus helping the manual system exercised by the pilot.  30 Figure 9. -Shows another fully assisted mechanism, which activates the steering system through the sierga.  In this case the pilot no longer exerts direct force.  Figure 10 - It shows another variant of the fully assisted mechanism, but this time the return spring is replaced by a linear motion component that regulates the position of the swing arm.  35 Figure 11. -Shows a perspective of another embodiment of the directional control system for snowmobile.  It is based on the same principles as the system developed in memory.  The spring is replaced by a concentric spring in the rotating forearm.  40 Figure 12.  -Show another perspective of figure 11, but with the system activated and the spring compressed.  45 Figure 13. -Show an alternative to install a damping element to the steering system.  Figure 14 - It shows an accessory element that allows varying some conditions of the geometry of the directional control system, such as degrees of rotation of the ski and its sensitivity.  65 Figure 15. -Shows the directional control system with the cam timing strap installed and the steering system activated on the left.  Both rotating forearms rotate synchronized in the same direction.  In this case the two skis are activated from a single pedal.  Figure 16 -Shows a front view of the snowmobile.  With the cam timing strap acting.  The inclined position is observed because the right ski is lowered from the static or neutral position, and the left is in an elevated position.  Turn oriented and tilted to the left.  The caterpillar is also tilted to the left side.  Below is a list of the different elements represented in the figures that make up the invention.  15 1. - Snowmobile of the type "foot driving" or "stand-up" 2. - Snowmobile chassis 3. -Traction Caterpillar 4 a. -Ski left 5 a. -Tilt swing arm 20 6 a. -Rotatable left arm 7 a. - Left rocker pedal 8 a. - Left kneecap 9 a. -Leva Left rotary forearm 10 a. -Support chassis head left 25 11 a. -Rollers left side 12 a. -Sierga left side 13 a. - Compression spring left side 14 a. -Rotation axis left swing arm 15 a. -Rotate accommodation of the left swing arm 30 16 a. -Left pedal left 17 a. -Rotatable left pedal axle 18 a. -Movement of the foot 19 a. -Feet left 20 a. -Left ski shaft 35 21 a. -Left connection left 4 b. -Right skiing 5 b. -Right swing arm 6 b. -Rotatable right arm 7 b. - Right rocker pedal 40 8 b. - Right kneecap 9 b. -Right right forearm 10 b. -Support chassis head right 11 b. -Rollers right side 12 b. - Right side 45 13 b. -Right compression spring 14 b. -Rotation axis right swingarm 15 b. -Rotate accommodation of the right rocker arm 16 b. -Right pedal lift 17 b. - Right pedal rotary axis 50 19 b. - Right foot 20 b. -Right ski axle 21 b. -Sierga right connection 722 -Sing, left ski edge 23. - Driver pilot 24. - Footprint in snow ski right 25. - Footprint in snow ski left 5 26. -Tracked snow track 27c. - Direction of rotation element 6a 27d. - Direction of rotation element 5a 27e. - Direction of rotation element 7a 27f. - Direction of rotation element 7b 10 27g. - Direction of rotation element 6b 28. -Sensor with management unit 29. -Electrical assistance system 30. -Hydraulic assistance system 31. -Pneumatic assistance system 15 32. -Assistance 33. -Electric input circuit 34. - Hydraulic pump 35. -Pneumatic pump 36. - Electric linear actuator 20 37. -Hydraulic cylinder 38. -Pneumatic cylinder 39. -Spring element to replace.  40 -Crank 40c. -Axis fixed point, connecting rod 25 40d. -Axis moving point, 40e crank. -Angle between chassis and swing arm 41. -Compression sliding sleeve 42. - Pier 43. - Compression nut 30 44. -Tilt articulated arm 45. -Tilt axle 46. - Tilt travel 47. -Cushion element 48. -Rotary knob 35 49. -Endless screw.  fifty. -Shaft 51. -Thigh cam timing.  PREFERRED EMBODIMENT OF THE INVENTION In view of the aforementioned figures and in accordance with the numbering adopted we can describe a preferred embodiment of the invention.  Through Figure 1 showing a type of snowmobile (1) driving 45 standing, we see the different symmetrical elements that have the directional control system installed, in addition to other essential components of the snowmobile, such as the two front skis (4a and 4b), the rear track (3) that provides traction and stability, the chassis (2) that supports the elements and mechanisms of the system, highlighting, tilting arms (5a, 5b), guide rollers (11 a, 11 b), traction saw (12a, 12b), left compression spring (13a) and tilting pedals (7a, 7b) located to the left and right of the longitudinal axis of the snowmobile, on which the feet of the 8 are positionedpilot.  These pedals (7a, 7b) have a rotary transverse axis (17a, 17b), allowing each pedal to rotate independently of the other.  Figure 1 shows the directional control system in neutral state, meaning not activated or with the cycle started.  5 Figure 2 shows the pilot (23) properly placing each foot on said pedals (7a, 7b) and activating the system cycle with the left pedal (7a) which produces lateral inclination of the vehicle and simultaneously a specific orientation of the left skiing (4th).  This allows to obtain a turn of very small radius and at a very low speed.  The 10 footprints marked in the snow show how the right ski (4b) has stopped marking footprint (24) in the snow as the curve is drawn, as a result of the left lateral inclination.  The footprint (25) of the left ski (4a) changes from being flat and horizontal to being drawn on the side and the edge (22) of the ski (4a).  The track (26) of the track (3) changes from being flat and 15 horizontal to be marked by the lateral area, due to the inclination.  It would be logical and easy to think of an embodiment of this same directional control system but eliminating the rotating pedals and allowing the system to drive the cycle of the paths of the mechanisms, as well as the compression of the spring (13a) or (13b), as a result of laterally transferring the weight of the pilot to the chassis and left or right ski, as a support point and pressure against the snow.  However, since the snow is of very variable density, the weight transferred to the ski would sink it into the snow, instead of remaining static and compressing the compression spring (13a) 25 which is the effect we need.  Such realization without pedals would be possible if the snowy terrain through which we circulate were completely compacted and guaranteeing some hardness.  But due to the quality, stability and pressure that the snow supports, it is very variable, even in the same environment, we would not be able to compress on all occasions the spring or spring of compression (13a) or (13b) which is the element that returns automatically the system cycle at the conclusion of a curve.  So it is also the one that keeps the system level and in neutral position, when we circulate in a straight line or stand still.  For this reason, the activation of the directional control system by means of the pedal has been included, because it allows complete precision of the moment of its activation, always at the pilot's choice and without influencing the type of snow through which we travel.  In addition to the above, the particularity of these pedals is that they provide a triple function as detailed below.  40 • As the main function, it allows to manually perform the rocker effect by means of the axle (17a) in the case of the left pedal, loading weight with the toe, to start the steering system cycle and unloading weight to return the system cycle automatically .  The pedal drive is very intuitive and convenient to apply.  45 • They allow the rider to be sustained when riding in a straight line or to balance the snowmobile to the left or right side, as appropriate, without the need to activate in this case any system mechanism.  This is useful on a very soft snow type and with very wide radius turns.  9• Due to the rotary axis (17a, 17b) that it incorporates, it allows the pilot to be tilted backwards, an appropriate position to undertake steep descents or to travel through deep snow, thus varying the center of gravity of the body as appropriate, towards the front or 5 rear of the snowmobile.  Thus, if, for example, we intend to turn to the left, we rotate the pedal (7a) (27e) Figure 3, and the directional control system cycle in the mechanisms on the left side begins.  This creates a clear decompensation of support on snow between skis (4a, 4b).  This decompensation is due to the rotation of the swing arm (5a) on the X axis (14a) and upward displacement of the ski (4a).  Simultaneously and through other joints the left ski (4a) also experiences rotation in Z and Y axes.  Unlike right skiing (4b), it remains 15 in a neutral position.  In Figures 4 and 5, it is understood that due to the distancing of the left ski from the ground, the pilot (23) has no difficulty tilting the snowmobile to the left and getting stable support between the left ski (4a) and the left side of the caterpillar (3).  In turn, the very edge (22) of the ski (4a) 20, which coincides with the orientation of the Y axis of the ski, is what marks the path to follow.  This steering system allows the pilot to make very slow inclines, without the help of centrifugal inertia that compensates for the inclination.  Even the rider can stand still in full curve without falling inside, as shown in Figure 5, due to the obtuse angle created between the side of the track and the side of the left ski, which provides lateral stability, The detail of the activation cycle of the Directional control system, Figure 6 and 7 shows the main elements coupled to a part of the chassis (2) of the snowmobile (1).  The left side and right side are symmetrical, and are in neutral position in Figure 6, without having started the movement cycle or rotations.  It is the same position as when we move straight ahead.  Depending on the direction we want to take, the pilot rotates a pedal or another with his foot.  Activation is very easy and intuitive.  3S To change trajectory, for example on the left, we can look at Figure 7 which corresponds to the left side of the system.  The left foot (19a) of the pilot exerts weight (18a) on the toe, rotating (27e) the pedal (7a) on the axis (17a).  A cam (16a) that incorporates the pedal (7a) pulls a saw (12a) that is arranged through a roller path and 40 guides (11a) fixed to the chassis (2) of the snowmobile (1).  The saw ends up finally connected to a part (21 a) of the main swing arm (5a).  Said swing arm, which in this embodiment is arranged in longitudinal orientation in the direction of travel, is fixed at one of its ends to the chassis (2) of the snowmobile (1) by means of an X axis (14a) from which it can rotate 45 ( 27d).  When the saw (12a) is tensioned, by the rotation of the pedal (7a), it forces the main swing arm (5a) to rotate and ascend with respect to the ground plane, and in turn compresses the spring (13a).  At the other end of the swing arm (5a) there is a box or housing (15a) that allows to insert the rotating forearm (6a), which is 10arranged longitudinally and that can rotate radially on its own axis.  The other end of said rotating forearm (6a) has the ski (4a) attached.  So when the rotating forearm (6a) rotates, so does the ski, in the same direction as the arm (6a) in (27c) Figure 7.  5 The connection of the rotating forearm (6a) and the ski (4a) can be fixed or by means of a transverse axis (20a), this allows the ski to swing with respect to the rotating forearm and maintain flatness with the ground.  The rotating forearm (6a) also has a cam (9a), which is connected to a kneecap strap (8a), the other end of the strap is 10 connected to a fixed part (10a) of the snowmobile chassis (2) (one).  In conclusion, the swing arm (5a), the rotating forearm (6a) and the ski (4a) are arranged longitudinally in the direction of travel.  This happens like this while the system is in a neutral situation.  When the swing arm 15 (5a) rises, so does the rotating forearm (6a).  As said arm rises, the rod brace (8a) due to the length of its radius, impacts the rotating forearm (6a), through the connection with the cam (9a), to rotate radially (27c) towards the exterior that in this case is to the left.  The radial rotation (27c) of the rotating forearm (6a) affects skiing 20 (4a) as follows, considering that the union of the rotating forearm (6a) with skiing (4a) is at an acute angle, the result on skiing is that it acquires rotation in the Y axis but also in the Z axis, Figures 3,4, 7.  While there is tension in the saw, the main swing arm is held up and the spring (13a) compressed.  When the saw (12a) loses tension, because the pilot stops pressing the pedal (7a), the spring (13a) due to its pressure forces the main swing arm (5 a) to return to its neutral starting position, and the tie rod of kneecaps (8a) returns the cam (9a) next to the rotating forearm (6a) to its neutral initial position, thereby returning the ski (4a) to its neutral initial position, Figure 6.  In view of the different technological advances, it is also possible to apply different assistance mechanisms to this directional control system.  An embodiment shown on the left ski (4a), with a semi-assisted mechanism, Figure 8, where the pilot through the pedal (7a) brings direct tension to the servant (12a), but can be helped by electromechanical (29), hydraulic (30) or pneumatic (31) systems.  When the control unit (28) detects movement in the servant (12a), it activates the assistance that can be (29), (30), (31) and that arrives through another parallel servant (32).  40 Another embodiment with a fully assisted mechanism Figure 9 shows how the manual pedal (7a) no longer has a direct connection by means of the saw (12a) with the swing arm (5a).  When the pedal is moved, the control unit (28) detects the movement and sends a signal that activates an electromechanical (29), hydraulic (30), or pneumatic (31) system, which through a servant or similar (32) providing the movement to raise the swing arm (5a).  elevenAnother embodiment with a fully assisted mechanism Figure 10 shows how the pedal (7a) no longer has a direct connection of the saw (12a) with the swing arm (5a).  When the pedal is moved, the control unit (28) detects the movement and sends a signal to an electric circuit (33), or hydraulic pump 5 (34) or pneumatic pump (35), but in this case these elements no longer send the movement assistance through the servant (32).  In this case the return spring (39) is changed and a linear electric actuator (36), or a double acting hydraulic cylinder (37) or a double acting pneumatic cylinder (38), or similar element is installed in its place that generates 10 movement to the swing arm (5a).  These elements can receive the order from their corresponding system (33), (34), (35).  Any of these elements allow the upward and downward movement of the swing arm (5a) 15 to be carried out. Another embodiment is reflected in Figures 11 and 12.  The left side of the system is shown, since the right is symmetrical.  The result and performance for the skis are the same as the previous embodiments, achieving an optimal positioning of the x, y, z axes of the ski.  The same rocker arm foundation (5a) is maintained with a rotating forearm 20 (6a) and kneecaps (8a), but in this case the return spring Figure 6 (13a) has been replaced by a compression spring (42) Figure 11, installed concentric to the rotating forearm (6a).  Obviously, an extension spring could also be installed.  To the system is added a connecting rod (40) that is connected by one end and by means of an axis (40c) to the chassis (2), 25 from which it swings.  The other end of the connecting rod (40) is also connected by means of a shaft (40d) to a bushing or sliding guide (41) that allows axial and radial displacement on the rotating forearm (6a).  When the tilting arm (5a) rises, rotating from the shaft (14a), it reduces the angle (40e) between the chassis (2) and the rotating forearm (6a) 30, forcing the crank arm and this one accordingly, by the distance from its radius, slide the bushing or guide that compresses the concentric spring (42).  Also, a nut (43) concentric to the rotating forearm (6a), allows more or less compression to the spring (42), to obtain greater or lesser hardness in the mechanism.  In Figure 11 we see the system in neutral position 35 without activating, with the spring extended (42).  In Figure 12 we see the system with the compressed spring (42), the tilting arm (5a) raised by rotation on the X axis (14a) and the ski (4a) with the new rotation orientation on Z and Y axes.  When we stop exerting pressure on the pedal (7a), the spring (42) that is compressed forces the entire mechanism back to its neutral initial position 40, as in figure 11.  It should be explained that the spring (42) is concentric to the forearm (6a), for its self-portability and to allow radial rotation of the forearm itself (6a).  However, said spring (42) could be replaced by a gas spring or the like, placed parallel or longitudinal to the forearm (6a).  One 45 spring support point would be coupled to the guide bushing (41) and the other spring support point would be coupled to the swing arm (5a).  On the above mentioned embodiments it is possible to apply other elements that would increase the performance and comfort of said system 12directional.  Thus, according to Figure 13, the configuration of this directional control system allows the incorporation of a damping element (47) that would allow greater ski contact with the terrain and greater comfort.  The rotary forearm (6a) seen in previous embodiments is now constituted by two parts, a tilting mobile (44) that is connected to the ski by the shaft (20a) and another rotary fixed (6a) coupled to the cavity (15a) of the main swing arm (5a).  Both parts, fixed and mobile, are joined by a rotation axis joint (45).  The damping element (47) is anchored to the mobile part (44) and the fixed rotating part (6a), thus when the ski (4a) receives a 10 bump, it swings on the shaft (45) and transmits the blow to the damping element (47).  Another embodiment according to Figure 14 provides a practical element that allows the angle of incidence between the shoulder strap (8a) and the cam (9a) of the rotating forearm (6a) to be varied rapidly.  By turning the knob (48), we can move the sliding shaft (50) that has a cam function up or down through the screw (49).  The variation of this angle together with the regulation of the length of the kneecap brace (8a), allow the increase and decrease of the rotational forearm rotation degrees (6a), which would affect a more abrupt or more sensitive type of rotation. About skiing  Finally, another type of embodiment is possible, based on the previous embodiments, as shown in Figures 15 and 16. In this case, a new accessory element allows the two skis to be oriented simultaneously 25 in the same direction instead of just one. .  This would provide greater strength in the ability to turn for heavier snowmobiles or with larger tracks that require greater capacity of skis to avoid the negative "understeer" effect.  This embodiment uses the same mechanism and elements that provide multi-effect orientation to skiing, on X, Y, Z axes, as in Figures 6 and 7.  However, a new element is added, which consists of a cam timing rod (51), Figure 15 and 16.  This tie connects by means of a rod, arm or cable, the cam (9b) of the right rotary forearm (6b) with the cam (9a) of the left rotary forearm (6a), thus, the rotation (27c) 35 of the forearm ( 6a) moves in the same direction (27g) to the right rotary forearm (6b) and vice versa.  In turn, when the rotating forearm (6b) rotates as a result of the cam synchronizer (51), the kneecap strap (8b) affects its radial path against the cam (9b), forcing the tilting arm down or rotating down (5b).  40 Thus, this new element (51) allows both skis to be oriented in the same direction and in turn, a raised ski (4a) and the opposite one lowered (4b), which would give us the lateral inclination of the snowmobile (1), as Figure 16.  45 In this embodiment it is fundamentally observed that with the activation of a single pedal we can orient both skis towards the same path.  After analyzing all the exposed embodiments, it can be understood that it is possible to make combinations between them.  13 
    权利要求:
    Claims (1)
    [1]
    CLAIMS 1a._ Directional control system for snow vehicles, being of the type 5 directional control system suitable for equipping vehicles specialized in moving through snow, of the snowmobile type or more specifically of the standing driving snowmobile type (1), and that start from a basic configuration of at least two front skis (4a, 4b) and a rear track (3), characterized in that the system comprises: 10 • A pair of independent rocker arms (5a, 5b), located on the right and left of the longitudinal axis of the snowmobile (1) and coupled at one of its ends to the chassis (2) of the snowmobile (1), which by means of a shaft (14a, 14b) at said end can tilt making an upward and downward movement with respect to the horizontal plane of the ground, • A pair of rotating forearms (6a, 6b) equipped with cams (9a, 9b), said forearms arranged longitudinally to the direction of travel and being able to rotate radially (27c) coupled to the other ends (15a, 15b) of the rocker arms (5a, 5b). 20 • A pair of independent rocker pedals (7a, 7b), located to the right and left of the longitudinal axis of the snowmobile (1), connected to a saw or traction rod (16a, 16b) and coupled to the chassis (2 ) of the snowmobile (1) by at least one transverse axis of rotation (17a, 17b) from which they can tilt. 25 • A pair of independent ball joint tie rods (8a, 8b), connected at one end to a part of the chassis (10a, 10b) of the snowmobile (1) and at the other end to a cam (9a, 9b) located on each of the rotating forearms (6a, 6b). • A pair of springs (42) or compression springs (13a, 13b) that allow blocking and returning the rotation of the respective rocker arms (5a, 5b). • A set of saws (12a, 12b) or rods, on a path of guide rollers (11a, 11b) or rocker arms, which transmit movement of the pedal (7a, 7b) to the rocker arm (5a, 5b) 35 2a.-System directional control for snow vehicle, according to claim 1a, characterized in that at the other end of both rotating forearms (6a, 6b) two skis (4a, 4b) are arranged in a longitudinal position to the direction of travel and coupled by a transverse axis (20a, 20 b) from which they can pivot. 40 3a._ Directional control system for snow vehicle, according to claims 1 and 2, characterized in that by placing the skis and the snowmobile on a horizontal plane, the angle formed between the tail of the ski (4a, 4b) and the rotating forearm ( 6a, 6b) becomes an acute angle, or the angle formed between the front half of the ski (4a, 4b) and the rotating forearm (6a, 6b) becomes an obtuse angle. 4th. -Directional control system for snow vehicle, according to claim 1, characterized in that when the ball joint braces (8a, 148b) affect the length and rotation of their radius, on the cam (9a, 9b) they cause radial rotation of the forearms (6a, 6b), and that said direction of rotation (27c) coincides with the orientation of rotation that we want apply to snowmobile. 5 5a._ Directional control system for snow vehicle, according to claim 1, characterized in that due to the traction of the saw (12a, 12b) produced by the rocker pedals (7a, 7b) it is possible to rotate the rocker arm ( 5a, 5b) on the axis (14a, 14b) and consequently raise or lower the desired ski (4a, 4b) with respect to the ground plane. 10 6a._ Directional control system for snow vehicle, according to claim 1, characterized in that its configuration allows through the rocker pedal (7a, 7b) a semi-assisted or fully assisted system (29), (30) can be activated (28) , (31) as it could be through a hydraulic, pneumatic or electric circuit 15, with servo motors or pressure pumps. 7a._ Directional control system for a snow vehicle, according to claim 1, characterized in that its configuration allows a fully assisted system (33,34,35) to be activated (28) through the rocker pedal (7a, 7b), exchanging the spring (39) for other elements (36), (37), (38) dependent on said assisted systems. 8a.-Directional control system for snow vehicle, according to claim 1, characterized in that its rotating forearms (6a, 6b) allow the incorporation by means of a joint (44) and a shaft (45), a shock absorbing element (47) that absorb uneven ground. 9a._ Directional control system for a snow vehicle, according to claim 1, characterized in that its rotating forearms (6a, 6b) allow the incorporation of an element that easily and quickly varies the height of the connection point of the cam (9a, 9b), by means of the movable shaft (50) and the screw (49), the angle formed between the rotating forearm (6a, 6b) and the ball joint tie (8a, 8b) also varying accordingly. 35 10a.-Directional control system for a snow vehicle, according to claims 1 and 4, characterized in that the system allows incorporating a cam synchronizer strap (51), which transmits and synchronizes the direction of rotation of the forearm (6a) or (6b ), depending on which has been activated, to the forearm on the opposite side, also causing it a downward displacement with respect to its neutral position. 11.-Directional control system for snow vehicle, according to claim 1, characterized in that with the activation of the system cycle the vehicle (1) is enabled to offer a considerable lateral inclination, at the same time that it is provided to the corresponding ski (4a) or (4b) a simultaneous movement, resulting in a rotation of the X, Y, Z axes, with respect to their neutral starting position. 16
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    同族专利:
    公开号 | 公开日
    WO2018078198A9|2018-09-27|
    WO2018078198A1|2018-05-03|
    US11173942B2|2021-11-16|
    EP3543085A4|2020-12-30|
    EP3543085A1|2019-09-25|
    ES2665787B1|2019-02-07|
    US20190248401A1|2019-08-15|
    CA3082646A1|2018-05-03|
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    法律状态:
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    优先权:
    申请号 | 申请日 | 专利标题
    ES201600910A|ES2665787B1|2016-10-26|2016-10-26|Directional control system for snow vehicle|ES201600910A| ES2665787B1|2016-10-26|2016-10-26|Directional control system for snow vehicle|
    CA3082646A| CA3082646A1|2016-10-26|2017-12-23|Steering control system for snow vehicles|
    EP17866335.7A| EP3543085A4|2016-10-26|2017-12-23|Steering control system for snow vehicles|
    PCT/ES2017/000155| WO2018078198A1|2016-10-26|2017-12-23|Steering control system for snow vehicles|
    US16/393,309| US11173942B2|2016-10-26|2019-04-24|Steering control system for snow vehicles|
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