• 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:
    COMPACT TRACTION APPARATUS, METHODS OF MANUFACTURING AND USING A TRACTION APPLIANCE AND USE OF A COMPACT TRACTION APPLIANCE. The compact traction apparatus includes an elongated sealed box that extends along a longitudinal axis, defining an inner chamber, a mat arranged around the box along its longitudinal axis and allowing the apparatus to move when the belt it is driven rotationally around the box, a handlebar attached to the box and extending to the rear, and a drive motor for the track. The motor is located in the inner chamber of the box and includes an output shaft mechanically connected to the track. The apparatus may also include a circuit for venting the bottom of the box's inner chamber and a generator to produce electricity.
    公开号:BR112012026245B1
    申请号:R112012026245-9
    申请日:2011-04-15
    公开日:2020-12-01
    发明作者:Yvon Martel
    申请人:Yvon Martel；
    IPC主号:
    专利说明:

    [0001] [001] The technical area is related to compact traction devices that can move over difficult terrains such as snow-covered land, sand, mud, etc. TECHNICAL STATUS
    [0002] [002] Several devices have been proposed over the years to enable displacement over difficult terrain. Several of them are compact devices that enable the propulsion or traction of a person, particularly that of a skier, through a track driven by the rotation of an engine. Examples are found in documents FR-2,431,304 (Jaulmes), published on February 15, 1980, and US-4, 519,470 (Allisio), published on May 28, 1985. Many other examples exist. Most of these devices use a gasoline engine to induce belt rotation. Some use an electric motor. Such devices can be useful as a means of light mobility, especially in places where it is difficult or prohibited to drive with larger vehicles. For example, on terrain whose surface is covered with snow, the snow can be too powdery and deep to allow the presence of a snowmobile. Another advantage of these devices is that transporting them in another vehicle is simpler and easier than that of larger and heavier vehicles such as snowmobiles.
    [0003] [003] Unfortunately, none of the previously proposed devices has proven to be quite suitable for the harsh conditions that can be found in certain winter periods, when these devices can be useful. For example, a very cold temperature can considerably reduce the reliability and autonomy of an appliance equipped with an electric motor powered by batteries. In the case of a gasoline engine, the combination of the exterior cold and the heat produced by the engine can cause compact accumulations of ice and snow on sensitive parts of the device. In addition, the milder temperatures are more likely to cause water infiltration in the device and cause problems that are difficult to repair, especially when they occur in distant places in forest areas or difficult to access.
    [0004] [004] The devices proposed previously cannot easily transport an electric generator to places of difficult access.
    [0005] [005] It is clear, therefore, that improvements in that technical area are still needed. SUMMARY
    [0006] [006] According to one aspect, a compact traction device is proposed, characterized by the fact that it includes: an elongated sealed box that extends along a longitudinal axis and defining an internal chamber, the box having an upper wall and a lower wall; a belt arranged around the box, according to its longitudinal axis and allowing the device to move when the belt is activated, entering rotation around the box, a motor for driving the belt, motor located inside the inner chamber of the box and which includes an output shaft, mechanically connected to the belt; and a ventilation circuit inside the internal chamber of the box, the ventilation system comprising an air inlet and an air outlet, which communicate with the outside of the box, the ventilation system allowing to maintain the temperature above the freezing point in the inside the inner chamber when the outside temperature is low, and allowing to cool the inside of the inner chamber when its temperature is above an upper limit.
    [0007] [007] According to another aspect, a compact traction device is proposed, characterized by the fact that it includes: a sealed box, elongated, which extends along a longitudinal axis and defining an internal chamber, the box having an upper wall and a lower wall; a mat arranged around the box, according to its longitudinal axis and allowing the device to move when the belt is activated, entering rotation around the box, a generator located inside the box's internal chamber, which serves to produce electricity to be able to supply external equipment; and a gasoline engine that serves to selectively drive the rotating conveyor and drive the generator, the engine being located in the inner chamber of the box.
    [0008] [008] According to another aspect, a method of manufacturing an apparatus as proposed above is proposed.
    [0009] [009] According to another aspect, it is proposed to use a compact traction device as proposed above, characterized by the fact that the device moves over snow-covered terrain.
    [0010] [0010] According to another aspect, we propose a method of using a compact traction device, of the type that includes a sealed, elongated box, which extends along a longitudinal axis, and which defines an internal chamber, in which a motor is located, which also includes a belt arranged around the box, along its longitudinal axis, and allowing the apparatus to move when the belt is driven in rotation around the box by means of the motor; the method being characterized by the fact that it includes the following simultaneous steps: maintaining a minimum temperature in the inner chamber using the heat produced by the engine, removing the heat inside the chamber when the temperature exceeds a limit value and maintaining a positive pressure in the inner chamber .
    [0011] [0011] More details on these aspects, as well as on other aspects of the proposed concept are contained in the following detailed description and in the attached Figures. BRIEF DESCRIPTION OF THE FIGURES
    [0012] [0012] Figure 1 is an isometric view of an example of an appliance made according to the proposed concept; Figure 2 is a side view of the apparatus shown in Figure 1; Figure 3 is a view similar to Figure 1, but shows the device without the mat and without the side walls on the sides of its box; Figure 4 is a view similar to Figure 3, but shows the left side of the device seen from behind; Figure 5 is a right side view of the apparatus shown in Figure 3; Figure 6 is a top view of the apparatus shown in Figure 3; Figure 7 is a view similar to Figure 1, but in which the operator is standing on a sled towed by the device, and Figures 8 to 13 are seen similar to Figures 1 to 6, but show a second example of an appliance in which an electric motor is used. DETAILED DESCRIPTION
    [0013] [0013] Figure 1 is an isometric view of an example of an appliance 10 incorporated according to the proposed concept. In this example, the apparatus 10 uses a gasoline engine to drive a conveyor 12 located around a sealed box 14, which has an elongated shape. It should be noted at this point that the reference to a "sealed" box means that its construction is sealed, but without excluding the presence of a ventilation circuit inside box 14. This ventilation circuit includes at least one entrance of air and at least one air outlet. The ventilation circuit in particular allows the interior of the box 14 to cool down when its temperature reaches above an upper limit, such as above 25 ° C. Other values are also possible.
    [0014] [0014] The rotation of the belt 12 around the box 14 allows the apparatus 10 to move. Box 14 is low in height making the center of gravity as low as possible. Box 14 includes a side wall 16 on each side. Box 14 can be made, for example, of a metallic material, of plastic or both. Aluminum is an example of a possible material for box 14, because this material is light and resistant. The mat 12 can be made of rubber or another polymer. Other materials are possible.
    [0015] [0015] The apparatus 10 includes a handlebar 20 which is attached to the box 14. The handlebar 20 extends substantially towards the rear of the apparatus 10. The handlebar 20 is designed to be held and handled by an operator 22 located at the rear of the device 10, as shown in a semi-schematic way in Figure 1. The handlebars 20 can be pivoting or fixed, as needed. When pivoting, the rotation of the handlebar pivot 20 can be limited between a minimum angle and a maximum angle in relation to the horizontal.
    [0016] [0016] Operator 22 can be equipped with skis 24 (or equivalent), or be on board a sled attached to device 10. As shown in Figure 1, the height of the center of gravity of device 10 is less than that of the knees operator 22.
    [0017] [0017] The operator 22 has controls installed on the handlebars 20, which allow him, in particular, to control the speed of movement of the device 10 and other functions. Controls (not shown) can be connected to box 14 via wires and / or wireless means. According to the model, it is, in particular, possible to provide a device that allows the apparatus 10 to go backwards with the force of the motor, which can be very useful in certain circumstances. Levers for activating a brake can also be provided (see Figure 13). Such levers can be arranged similarly to the brake levers of a bicycle or motorcycle, for example. Other elements can be mounted on the handlebars 20, as needed, particularly a lamp, indicator panels, etc.
    [0018] [0018] When moving forward, device 10 pulls operator 22 and, if necessary, carries a load, such as, for example, a load placed on a sled attached to device 10. Such device 10 can easily carry an equivalent load twice its weight in the snow. For example, tests carried out with a 125 kg (275 lb) device have shown that such a device can pull a load of 225 kg (550 lb) over a distance of 150 km with gasoline from a full tank only.
    [0019] [0019] The operator 22 can change the direction of movement of the device 10, moving the handlebar 20 laterally in the opposite direction to the turn to be made. This action is similar to that performed by an operator of a small conventional size lawnmower.
    [0020] [0020] Figure 2 is a side view of the appliance 10, shown in Figure 1. Figures 1 and 2 show the appliance 10 assembled. Figure 3 is a view similar to that of Figure 1, but shows the apparatus 10 without its mat 12 and without its side walls 16 on the sides of its box 14. Figure 4 is a view similar to that of Figure 3, but shows the left side of the device 10 seen from behind. Figure 5 is a right side view of the apparatus 10, shown in Figure 3.
    [0021] [0021] As can be seen in particular in Figures 3 and 4, the box 14 forms an internal chamber 30 in which the various components of the apparatus 10 are located, including its gasoline engine 32. The box 14 also has an upper wall 14a, a lower wall 14b, a front wall 14c and a rear wall 14d. The box 14 has a reinforcement structure, which can include one or more internal walls, which can compartmentalize the inner chamber 30. The compartments can communicate with each other.
    [0022] [0022] A pair of upper guides 34 is arranged longitudinally on the upper wall 14a of the box 14. A pair of lower guides, similar to that of the upper wall 14a, is longitudinally arranged on the lower wall 14b of the box 14. The guides are made of a material that has a very low coefficient of friction. In particular, they allow the belt 12 to rotate around the box 14 with reduced friction between the inner side of the belt 12 and the outside of the box 14. They also serve as rails to keep the belt 12 on the axis of the apparatus 10. The guides extend a few centimeters beyond the front and rear ends of the top 14a and bottom 14b walls to support the mat 12 over almost the entire length of the apparatus 10.
    [0023] [0023] At least one front roller is mounted in rotation on the front of box 14. In the example shown, two front rollers 40 are provided. The front rollers 40 are mounted coaxially around a front transverse axle 42, which is supported by a fixed lubricated axle, the ends of which are fixed to two opposite plates 44, arranged parallel to the longitudinal axis of the apparatus 10. The plates 44 are connected rigidly at the front of the box 14. In addition, in the illustrated example, a bumper 46 is provided at the front of the appliance 10. The ends of the bumper 46 are connected to the two plates 44, as shown in particular in Figures 3 and 4. There is a sufficient distance between the interior of the bumper 46 and the front rollers 40 so that the belt 12 can rotate around the box 14, without rubbing against the inside of the bumper 46.
    [0024] [0024] At least one rear roller is mounted in rotation at the rear of box 14. In the example shown, two rear rollers 50 are provided. The rear rollers 50 are mounted coaxially around a rear transverse axis 52, which is supported at their ends by bearings located on the two opposite plates 54, arranged parallel to the longitudinal axis of the apparatus 10. The plates 54 are rigidly connected to the rear of the box 14. In addition, in the illustrated example, a mechanical connection is provided between the output shaft of a transmission 60, shaft located in box 14, and the transversal shaft 52. The rear rollers 50 are therefore used to drive the belt 12 per rotation in order to move the device 10. Different types of mechanical connections can be used between the transmission 60 and the transverse rear axle 52. The type that is illustrated includes a belt 62 or a chain and allows the reduction of the speed of rotation between the output shaft of the transmission 60 and the rear transverse shaft 52. Other types of connections and configurations are also possible. The mechanical connection between the engine 32 and the transmission 60 is provided by a belt 64. The transmission 60 can, for example, allow for forward and reverse. It can allow one or more speeds, or the speed variation.
    [0025] [0025] The rear transverse axle 52 also supports a brake disc 66, which is shown in Figure 4. The disc is located near the left end in the example. The brake shoes are connected to box 14 and can be operated by operator 22 from handlebars 20 (see Figure 13).
    [0026] [0026] The drive motor 32 of the belt 12, in the example of Figures 1 to 4, is a gasoline engine, located directly in the front of the transmission 60. An intermediate transverse wall is present in the example shown to reinforce the part between the gasoline engine 32 and the transmission 60. The gasoline engine 32 is fueled from a tank 70 located at the front of the inner chamber 30 of the apparatus 10. A battery 72 is located next to the gas tank. This battery 72 serves particularly to supply the electric starter of the gasoline engine 32. The operator 22 can thus start and stop the engine 32 without having direct access to it.
    [0027] [0027] The apparatus 10 of Figures 1 to 5 also includes a generator 80 located in the inner chamber 30 and which can generate energy to supply one or more external equipment with a voltage corresponding, in particular, to a domestic electrical outlet, as for example 110 V or 220V / 240V, with a frequency of 60 Hz or 50 Hz. One or more electrical outlets are available on the device 10 or even on the generator 80. The generator 80 includes an internal rotor that can be rotated with the same gasoline engine 32. The possibility of producing electricity from the device 10 can be very advantageous for users, such as workers who must use power tools in remote places or owners of country houses far from inhabited areas. Many other uses are possible. A generator with a power between 4000 and 6000W can be installed in a device 10 of the size shown. A smaller or larger generator is also possible.
    [0028] [0028] The axis of the generator 80 is disposed transversely in relation to the longitudinal axis of the device 10. The generator 80 can also be placed, otherwise in certain models. It is connected to the output shaft of the gasoline engine 32 by means of a transmission belt 82. An electric clutch 84 mounted on the generator tree of 80 allows the mechanical connection between the generator and the gasoline engine 32 to be activated and deactivated. Thus, when the generator 80 does not have to be used, for example, when the apparatus 10 is in motion, the rotation of the rotor of the generator 80 can be avoided. When generator 80 is in operation, transmission 60 of apparatus 10 is in the neutral position.
    [0029] [0029] Fresh air enters the inner chamber 30 of the box 14 through a series of openings 90 provided on at least one side of the box 14, immediately below the upper wall 14a. The openings 90 have a relatively small diameter in order to decrease the intake of snow and debris, such as small branches of wood or other objects. Air enters through openings 90 in an intake box 92, which collects air from all openings 90 on each side of box 14. When using apparatus 10, the intake box 92 is heated from below by the heat produced by the gasoline engine 32 and circulating through the inner chamber 30. This heat allows to keep the inner chamber 30 well above the freezing point (0 ° C), even if the outside temperature is very cold, such as below -20 ° C . Thanks to this heat, any snow particles that enter the intake box 92 melts and goes outside, even when it is cold. The air leaves the intake box 92 through an outlet tube 94, which is circular in the example. A portion of the upper end of the outlet tube 94 can emerge several millimeters from the bottom of the intake box 92 to prevent water from entering the inner chamber 30 directly.
    [0030] [0030] Figure 6 is a top view of the apparatus 10 shown in Figure 3. Showing the air inlet box 92. The air leaving the inlet box 92 then enters into a flexible pipe 95 (illustrated schematically in Figure 4) which leads to the entrance 33 of the cooling fan volute integrated with the gasoline engine 32. The fan located on the engine 32 thus generates the suction force necessary to suck air through the openings 90. The air for cooling passes around the cylinder or the cylinders of the gasoline engine 32 and then arrives inside the inner chamber 30.
    [0031] [0031] The air outlet from the interior of the device 10 is carried out in two ways. On the one hand, the combustion of gasoline in engine 32 generates exhaust gases. The air used for combustion enters the engine 32 from inside the inner chamber 30 or can also come directly from the intake box 92 in the case of certain engines. The exhaust gases at the outlet of the engine cylinder or cylinders 32 are then directed to the rear of the apparatus 10 by an exhaust pipe 96, which is shown in Figure 6. The exhaust pipe outlet 96 is located in space 98 where the rear transverse axle 52 and the two rear rollers 50 are located. This space 98 is partially covered by the presence of the belt 12 when the apparatus 10 is mounted. This configuration makes it possible, in particular, to reduce noise and avoid any possible contact with the skin or clothing of the operator 22 with the heat outlet from the exhaust pipe 96. Other configurations are also possible.
    [0032] [0032] Air is also removed from the interior of the inner chamber 30 by an air outlet that is part of the ventilation circuit. The air passing through the outlet flows first through the cooling circuit of the generator 80 and then through the flexible tube 104 (illustrated schematically in Figure 4) to the entrance of an air outlet box 100. The outlet box 100 is constructed similarly to the intake box 92. Air is then evacuated through openings 102 arranged on at least one side of the box 14.
    [0033] [0033] When generator 80 is in operation, the fan incorporated in generator 80 contributes to the displacement of the air to increase the air flow for cooling. Additional fans located in series in the flexible tubes connected to the air inlet and outlet can further increase the air flow if the temperature in the inner chamber 30 becomes too high. Such fans can be activated automatically by a thermostat equipped with a temperature sensor or by another device.
    [0034] [0034] The apparatus 10 is configured so that a positive pressure is created in the inner chamber 30. This is achieved by providing a total air inlet area greater than the total outlet area. In the example, the number of openings 90 is greater than the number of openings 102. The positive pressure allows, in particular, to obtain a better seal of the housing 14.
    [0035] [0035] When the apparatus 10 is in motion, the sides of the box 14 are closed tightly by means of the side walls 16, which are illustrated in Figures 1 and 2. These side walls 16 are fixed with screws or otherwise to the rest of the box 14. In this way, the inside of the box 14 remains closed and dry when using the device 10.
    [0036] [0036] As shown in Figure 5, the bottom of box 14 is curved in its center. This elevation is about 3 cm at the front and at the rear of the conveyor 12 in the apparatus 10, shown in the example. This central part is approximately one third of the length of the apparatus 10. The elevation particularly facilitates the yaw movement in the curves as well as the manual pivot action of the apparatus 10 on hard and rough surfaces such as asphalt and concrete. In addition, the front of the lower wall 14b defines an angle to the horizontal. The front transverse axle 42 is therefore higher than the rear transverse axle 52. This also facilitates passage over obstacles.
    [0037] [0037] Figure 7 is a view similar to that of Figure 1, but in which the operator 22 standing on a sled 200 attached to the apparatus 10. The coupling 202 of the sled 200 is connected to a support 210 which, in the example shown, has the shape of a straight or slightly curved transverse rod in its center. The cross rod 210 is supported by two corresponding plates 212, which project upwards from the box 14. The coupling 202 includes two sled retaining arms 200, which are fixed to a plate 204, which can pivot around a vertical axis at its junction with an engaging element 206. The engaging element 206 can slide from left to right along the cross rod 210 through pulleys located on both sides of the engaging element 206. In turn, the element hitch 206 can then move to one end of the cross rod 210, which facilitates handling of the apparatus 10, and reduces the effort of the operator 22.
    [0038] [0038] Figures 8 to 13 are seen similar to those of Figures 1 to 6, but show a second example of apparatus 300, in which an electric motor is used. This apparatus 300 is otherwise similar to the apparatus 10 of the previous example. The apparatus 300 particularly includes a mat 302, a sealed box 304 and a handlebar 306, which is held by the operator 308. The apparatus 300 can also be used with the sled 200 of Figure 7.
    [0039] [0039] The conveyor belt 302 of the device 300 is driven by an electric motor 310 (Figure 10). This motor is electrically powered by one or more 312 batteries, also placed inside the inner chamber 314 of box 304. The electric motor 310 can be of the AC or DC type, with or without permanent magnets. A group of four 312 deep-cycle lead-acid batteries is shown in the illustrated example. The number and type of 312 batteries may vary depending on your needs. Batteries 312 are connected to an electric controller operated by operator 308 from the handlebar handles 306. The various electrical connections are not shown in the figures to simplify the illustrations.
    [0040] [0040] During operation, the electric motor 310 produces heat. This heat represents about 10% of the electrical energy taken from the battery 312. The heat thus dissipated is used inside the chamber 314 of the apparatus 300 to keep the batteries 312 warm when the outside temperature is very cold. This heat can then maintain an optimal temperature for the batteries, despite the very cold weather. The optimum temperature can vary, for example, between 20 and 25 ° C. Other temperatures are also possible. The recovery of this heat is beneficial, because most batteries lose their effectiveness when the weather is cold. This is particularly the case for lead-acid batteries. Although more efficient batteries exist, lead batteries are still a good choice, because they are readily available and relatively inexpensive. They are more resistant to cold than nickel batteries or lithium batteries, for example. The efficiency of lead-acid batteries decreases almost linearly with the drop in temperature, passing, for example, from 100% at a temperature of 25 ° C to 30% at 40 ° C, depending on the exact type of battery. The reduction in performance therefore has a direct impact on the autonomy of the device 300. By maintaining the heat in the case 304 when the weather is cold, the battery 312 can then maintain a much higher efficiency than it would be at lower temperatures. The interior of box 304 can also be insulated to help retain heat.
    [0041] [0041] An internal ventilation system is provided in case of overheating, for example, when the appliance 300 operates in mild temperatures and when the electric motor 310 performs a lot of energy. The internal ventilation system is part of the ventilation circuit. It can include a thermostat that drives at least one fan that provides an air supply from the outside to dissipate the internal heat. The air inlet and air outlet can be placed at the top of the 306 handlebars at a distance from each other. The air then circulates through the tubes that form the sides of the 306 handlebar. The fan or fans can / can be placed in the 304 box or the 306 handlebar. The junction between the 306 handlebar and the 304 box is configured to allow air to pass between the two. Thus, the box 304 can be constructed in a very watertight manner up to the height of the air inlet and outlet on the handlebars 306. Positive pressure is maintained inside the inner chamber 314 to reduce the risk of water infiltration in places that are not completely appropriately sealed. The apparatus 300 may even be immersed from time to time, which may be necessary, for example, when the apparatus 300 must cross an unfrozen stream or other similar place where there is water.
    [0042] [0042] It is possible to incorporate a heating element, such as a heating cable, inside the box 304 to keep the batteries 312 at a good temperature during charging in the open air when it is cold and also when storing them outside.
    [0043] [0043] It is also possible to provide a fixed support, placed above the mat 302. This support can be installed in one or other of the examples of apparatus 10, 300 shown. The holder can be useful for transporting equipment, such as a tool box.
    [0044] [0044] This detailed description and the accompanying figures are only examples. A person working in this area will recognize that changes can be made while remaining within the scope of the proposed concept.
    权利要求:
    Claims (57)
    [0001]
    Compact traction device (10, 300), including: a sealed box (14, 304), elongated in shape, extending along a longitudinal axis and defining an inner chamber (30, 314), the box (14, 304) having an upper wall (14a) and a lower wall ( 14b); a belt (12, 302) arranged around the box (14, 304), along its longitudinal axis and allowing the apparatus (10, 300) to move when the belt (12, 302) is activated, entering rotation in around the box (14, 304); and, a belt drive motor (32, 310), motor (32, 310) located inside the inner chamber (30, 314) of the box (14, 304) and which includes an output shaft, mechanically connected to the belt (12, 302); characterized by the fact that the compact traction device (10, 300) also includes: a ventilation circuit inside the inner chamber (30, 314) of the box (14, 304), the ventilation circuit including an air inlet and an air outlet, which communicate with the outside of the box (14, 304), the ventilation circuit allowing to maintain the temperature above the freezing point inside the inner chamber (30, 314) when the outside temperature is lower, and allowing to cool the inside of the inner chamber (30, 314) when its temperature exceeds one upper limit.
    [0002]
    Apparatus (10, 300) according to claim 1, characterized by the fact that it includes: a pair of upper guides (34) arranged longitudinally on the upper wall (14a) of the box (14, 304); a pair of lower guides arranged longitudinally on the lower wall (14b) of the box (14, 304); at least one front roller (42) rotatably mounted on the front of the box (14, 304); and, at least one rear roller (50) rotatably mounted on the rear of the box (14, 304); the belt (12, 302) which includes an internal face that is supported by the guides (34) and rollers (42, 50).
    [0003]
    Apparatus (10, 300) according to claim 2, characterized in that it includes a transmission (60) that ensures at least part of the mechanical connection between the motor (32, 310) and the track (12, 302).
    [0004]
    Apparatus (10, 300) according to claim 3, characterized in that the transmission (60) is mechanically connected to the rear roller (50).
    [0005]
    Apparatus (10) according to any one of claims 1 to 4, characterized in that the engine (32, 310) is a gasoline engine (32) fueled with fuel from a tank (70) located in the inner chamber (30) of the box (14).
    [0006]
    Apparatus (10) according to claim 5, characterized by the fact that it includes a generator (80) located in the inner chamber (30) and used to generate electricity, which can supply external equipment.
    [0007]
    Apparatus (10) according to claim 6, characterized by the fact that the generator (80) produces electricity with a voltage corresponding to that of a domestic electrical outlet.
    [0008]
    Apparatus (10) according to claim 6 or 7, characterized by the fact that the generator (80) includes a rotation axis arranged transversely to the longitudinal axis of the housing (14).
    [0009]
    Apparatus (10) according to claim 8, characterized by the fact that the generator (80) and the gasoline engine (32) are mechanically connected by means of an electric clutch (84).
    [0010]
    Apparatus (10) according to any one of claims 5 to 9, characterized in that the air inlet of the ventilation circuit includes an air intake box (92) located at the top of the inner chamber (30) and for reducing the entry of snow into the inner chamber (30).
    [0011]
    Apparatus (10) according to claim 10, characterized in that the air intake box (92) comprises openings (90) located on at least one side of the box (14).
    [0012]
    Apparatus (10) according to claim 11, characterized by the fact that the openings (90) of the air intake box (92) are located on both sides of the box (14), each of the openings (90) being in connection with an air outlet of the air intake box (92).
    [0013]
    Apparatus (10) according to claim 12, characterized by the fact that the air outlet of the air intake box (92) is connected to an engine cooling volute (32).
    [0014]
    Apparatus (10) according to claim 13, characterized by the fact that the connection between the air outlet of the air intake box (92) and the engine cooling volute (32) includes a flexible tube (95).
    [0015]
    Apparatus (10) according to claim 14, characterized in that the air outlet of the ventilation circuit includes an air outlet box (100) mounted on the top of the inner chamber (30).
    [0016]
    Apparatus (10) according to claim 15, characterized by the fact that the air outlet box (100) includes openings (102) located on at least one side of the box (14).
    [0017]
    Apparatus (10) according to claim 16, characterized by the fact that the openings (102) of the air outlet box (100) are located on both sides of the box (14), each of the openings (102) is in connection with an air inlet of the air outlet box (100).
    [0018]
    Apparatus (10) according to claim 17, characterized in that the air inlet of the air outlet box (100) is connected to an outlet of a cooling circuit of another element (80) inside the inner chamber (30).
    [0019]
    Apparatus (10) according to claim 18, characterized in that the connection between the air inlet of the air outlet box (100) and the cooling circuit outlet of the other element (80) includes a flexible tube (104 ).
    [0020]
    Apparatus (10) according to any one of claims 5 to 19, characterized in that the apparatus (10) includes an exhaust pipe (96), the exhaust pipe (96) has a first end connected to the engine (32) and a second end open to the outside of the inner chamber (30).
    [0021]
    Apparatus (10) according to claim 20, characterized in that the second end of the exhaust pipe (96) opens towards the rear of the apparatus (10), between the box (14) and the interior of the conveyor ( 12).
    [0022]
    Apparatus (10) according to any one of claims 5 to 21, characterized in that the inner chamber (30) is maintained at a positive pressure in relation to atmospheric pressure.
    [0023]
    Apparatus (300) according to any one of claims 1 to 4, characterized in that the motor is an electric motor (310) powered by at least one battery (312) located in the inner chamber (314) of the housing (304) ).
    [0024]
    Apparatus (300) according to claim 23, characterized by the fact that the ventilation circuit uses the heat produced by the electric motor (310), as a heat source.
    [0025]
    Apparatus (300) according to claim 23 or 24, characterized in that the electric motor (310) is powered by several lead-acid batteries (312).
    [0026]
    Apparatus (300) according to claim 25, characterized in that the temperature inside the inner chamber (314) is maintained at approximately between 20 and 25 ° C to ensure the maximum efficiency of the batteries (312).
    [0027]
    Apparatus (300) according to any one of claims 23 to 26, characterized in that the air inlet and air outlet of the ventilation circuit are located on a handlebar (306).
    [0028]
    Apparatus (300) according to any one of claims 23 to 27, characterized in that the inner chamber (314) is maintained at a positive pressure in relation to atmospheric pressure.
    [0029]
    Apparatus (10, 300) according to any one of claims 1 to 28, characterized in that the housing (14, 304) includes removable side walls (16).
    [0030]
    Apparatus (10, 300) according to any one of claims 1 to 29, characterized in that the apparatus (10, 300) includes a support (210) to which a sledge coupling end (202) can be connected.
    [0031]
    Apparatus (10, 300) according to claim 30, characterized in that the support (210) includes a cross rod connected to the upper part of the housing (14, 304).
    [0032]
    Apparatus (10, 300) according to claim 31, characterized in that the cross rod and the coupling end (202) are slidably connected.
    [0033]
    Apparatus (10, 300) according to any one of claims 1 to 32, characterized in that it includes a handlebar (20, 306) connected to the housing (14, 304) and extending substantially to the rear.
    [0034]
    Apparatus (10, 300) according to claim 33, characterized by the fact that it includes a brake (66) operable from the handlebars (20, 306).
    [0035]
    Apparatus (10, 300) according to any one of claims 1 to 34, characterized by the fact that it includes a heating element located inside the inner chamber (30, 314) and can be supplied with energy from the outside to maintain the minimum temperature when the device (10, 300) is not in use.
    [0036]
    Apparatus (10, 300) according to any one of claims 1 to 35, characterized in that the housing (14, 304) of the apparatus is made at least partially from aluminum.
    [0037]
    Apparatus (10, 300) according to any one of claims 1 to 36, characterized in that the ventilation circuit includes a thermostat.
    [0038]
    Compact traction device (10, 300), characterized by the fact that it includes: an elongated sealed box (30, 314) extending along a longitudinal axis and defining an inner chamber (30, 314), the box (14, 304) having an upper wall (14a) and a lower wall (14b ); a mat (12, 302) arranged around the box (14, 304) along its longitudinal axis and which allows the apparatus (10, 300) to move when the mat (12, 302) is driven in rotation around the box (14, 304); a gasoline engine (32) located inside the inner chamber (30, 314) of the box (14, 304); characterized by the fact that the apparatus (10, 300) also includes a generator (80) located in the inner chamber (30, 314) of the box (14, 304) and which serves to produce electricity that can supply an external device; and, the gasoline engine (32), which serves to selectively drive the belt (12, 302) in rotation and the generator (80).
    [0039]
    Apparatus (10, 300) according to claim 38, characterized by the fact that it includes: a pair of upper guides (34) arranged longitudinally on the upper wall (14a) of the box (14, 304); a pair of lower guides arranged longitudinally on the lower wall (14b) of the box (14, 304); at least one front roller (42) rotatably mounted on the front of the box (14, 304); and, at least one rear roller (50) rotatably mounted to the rear of the housing (14, 304); the belt (12, 302) including an inner face that is supported by the guides (34) and the rollers (42, 50).
    [0040]
    Apparatus (10, 300) according to claim 39, characterized in that it includes a transmission (60) that ensures at least part of the mechanical connection between the motor (32) and the track (12, 302).
    [0041]
    Apparatus (10, 300) according to claim 40, characterized in that the transmission (60) is mechanically connected to the rear roller (50).
    [0042]
    Apparatus (10, 300) according to any one of claims 38 to 41, characterized in that the generator (80) produces electricity of a voltage equal to that of a domestic electrical outlet
    [0043]
    Apparatus (10, 300) according to any of claims 38 to 42, characterized in that the generator (80) includes a rotation axis arranged transversely to the longitudinal axis of the housing (14, 304).
    [0044]
    Apparatus (10, 300) according to claim 42 or 43, characterized in that an internal generator rotor (80) and the gasoline engine (32) are mechanically connected by means of an electric clutch (84).
    [0045]
    Apparatus (10, 300) according to any one of claims 38 to 44, characterized in that the inner chamber (30, 314) is maintained at a positive pressure in relation to atmospheric pressure.
    [0046]
    Apparatus (10, 300) according to any one of claims 38 to 45, characterized in that the housing (14, 304) includes removable side walls (16).
    [0047]
    Apparatus (10, 300) according to any one of claims 38 to 46, characterized in that the apparatus (10, 300) includes a support (210) for receiving an end of the coupling (202) of a sled.
    [0048]
    Apparatus (10, 300) according to claim 47, characterized in that the support (210) includes a transverse rod connected to the upper part of the housing (14, 304).
    [0049]
    Apparatus (10, 300) according to claim 48, characterized in that the cross rod and the coupling end (202) are slidably connected.
    [0050]
    Apparatus (10, 300) according to any one of claims 38 to 49, characterized in that it includes a handlebar (20, 306) connected to the housing (14, 304) and extending substantially to the rear.
    [0051]
    Apparatus (10, 300) according to claim 50, characterized in that it includes a brake (66) operable from the handlebars (20, 306).
    [0052]
    Apparatus (10, 300) according to any one of claims 38 to 51, characterized by the fact that it includes a heating element located inside the inner chamber (30, 314) and which can be supplied with energy from the outside to maintain the minimum temperature when the device (10, 300) is not in use.
    [0053]
    Apparatus (10, 300) according to any one of claims 38 to 52, characterized in that the housing (14, 304) of the apparatus (10, 300) is made at least partially from aluminum.
    [0054]
    Method of using a motorized traction device (10, 300) of the type that includes an elongated sealed box (14, 304), which extends along the longitudinal axis that defines an inner chamber (30, 314) in which a motor (32, 310) is located, which also includes a conveyor (12, 302) arranged around the box (14, 304) along its longitudinal axis and allows the device (10, 300) to move when the belt (12, 302) is rotationally driven around the box (14, 304) by means of the motor (32, 310); the method being characterized by the fact that it includes the following simultaneous steps: maintain a minimum temperature in the inner chamber (30, 314) by means of the heat produced by the engine (32, 310); evacuate the heat in the inner chamber (30, 314), when the temperature exceeds a limit value, and maintain a positive pressure in the inner chamber (30, 314).
    [0055]
    Method according to claim 54, characterized by the fact that it includes: move the device (10, 300) over snow-covered terrain.
    [0056]
    Method according to claim 55, characterized by the fact that the engine is a gasoline engine (32), and the step of moving the device includes: fill the engine (32) with gasoline from at least one fuel tank (70) located in the inner chamber (30).
    [0057]
    Method according to claim 55, characterized by the fact that the motor is an electric motor (310), and the step of moving the device includes: supply the electric motor (310) with electricity by at least one battery (312) located inside the inner chamber (314).
    类似技术:
    公开号 | 公开日 | 专利标题
    BR112012026245B1|2020-12-01|compact traction apparatus, and method of using a traction apparatus
    BR112015008545B1|2021-06-22|TRANSPORT DRIVE UNIT
    US8827014B2|2014-09-09|Compact pulling apparatus
    KR102206902B1|2021-01-22|Compact pulling apparatus
    同族专利:
    公开号 | 公开日
    MX2012011442A|2013-02-11|
    CA2762353C|2012-08-07|
    CN102892668A|2013-01-23|
    KR20130051935A|2013-05-21|
    WO2011127607A1|2011-10-20|
    CN104802869B|2018-04-17|
    JP6160879B2|2017-07-12|
    PL2558353T3|2015-12-31|
    EP2558353A1|2013-02-20|
    EP2558353A4|2013-09-18|
    US20130037332A1|2013-02-14|
    KR101847660B1|2018-04-11|
    CA2772513A1|2011-10-20|
    HK1207845A1|2016-02-12|
    HRP20151066T1|2016-01-01|
    CN104802869A|2015-07-29|
    RS54327B1|2016-02-29|
    CA2762353A1|2011-10-20|
    ES2549437T3|2015-10-28|
    US20130192906A1|2013-08-01|
    CA2772513C|2012-08-07|
    JP2013527819A|2013-07-04|
    JP2016055866A|2016-04-21|
    HK1179226A1|2013-09-27|
    JP5870399B2|2016-03-01|
    KR101921439B1|2018-11-22|
    SI2558353T1|2016-02-29|
    SMT201500243B|2016-01-08|
    US8528672B2|2013-09-10|
    PT2558353E|2015-10-26|
    JP2017128331A|2017-07-27|
    EP2946990A1|2015-11-25|
    CA2776417A1|2011-10-20|
    EP2946990B1|2018-06-06|
    CA2776417C|2018-09-18|
    BR112012026245A2|2016-07-12|
    US8453769B2|2013-06-04|
    EP2558353B1|2015-07-08|
    DK2558353T3|2015-10-19|
    JP6332487B2|2018-05-30|
    CN102892668B|2015-06-17|
    HUE026462T2|2016-05-30|
    KR20180004744A|2018-01-12|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US1317103A|1919-09-23|Emile rimailho |
    US758757A|1904-01-30|1904-05-03|William R Jones|Traction-engine.|
    US1287261A|1917-08-28|1918-12-10|Lester B Domer|Tractor.|
    GB140121A|1917-12-26|1920-03-25|Cie Forges Et Acieries Marine|Improvements in or relating to endless track or belt rail tractor vehicles|
    US2046560A|1933-09-09|1936-07-07|Neafie J Buck|Tractor|
    US2196458A|1937-10-22|1940-04-09|Theodore P Flynn|Snow tractor|
    US2289768A|1940-11-22|1942-07-14|John Fehrenbacher|Snow sled|
    US2345496A|1941-07-03|1944-03-28|Alvin W Opheim|Tractor|
    US2393309A|1943-04-16|1946-01-22|Avery M Cochran|Snow tractor|
    US2519745A|1947-02-24|1950-08-22|Vincent A Danielson|Garden tractor|
    US2702088A|1951-08-31|1955-02-15|Jr Marcel Klimek|Snowmobile|
    US2855059A|1956-07-13|1958-10-07|Sidney S Sutherland|Self-propelled endless tread snow tractor|
    FR1169880A|1958-01-13|1959-01-07|Individual skier thruster|
    US3146840A|1959-07-13|1964-09-01|Walsh Jack|Powered endless track snow sled|
    US3231036A|1961-05-15|1966-01-25|Appenrodt Richard|Stair climbing invalid carriages|
    US3068950A|1961-10-10|1962-12-18|Isaac F Davidson|Adjustable motor-driven invalid chair with endless tracks|
    US3221830A|1961-12-14|1965-12-07|Walsh Jack|Cross-country snow vehicle|
    GB1042943A|1963-03-12|1966-09-21|Pierre Antonetti|Track laying tractor for towing a skier|
    US3269475A|1963-11-19|1966-08-30|Duramobile Company|Transportation system having two pairs of endless tracks|
    US3398806A|1966-05-12|1968-08-27|Alvin L. Hendricks|Self-propelled crawler-type mobile platform|
    US3427078A|1966-10-20|1969-02-11|Frederick L Parsons|Endless track with hollow inflatable treads|
    US3418961A|1967-03-17|1968-12-31|Gregg Gibson & Gregg Inc|Swamp clearing machine|
    JPS4843545Y1|1967-04-06|1973-12-15|
    FR1568862A|1968-01-09|1969-05-30|
    US3590523A|1968-07-02|1971-07-06|Mathias H Riesgraf|Toy vehicle with track drive mechanism having an internal power source|
    US3610355A|1969-04-28|1971-10-05|Buck Willard|Portable snow vehicle|
    US3554300A|1969-05-28|1971-01-12|Edgar N Rosenberg|Deep submergence tunneling device|
    US3645348A|1969-05-29|1972-02-29|Husted Royce Hill|Power ski|
    JPS4828216Y1|1970-03-24|1973-08-23|
    US3734221A|1971-06-04|1973-05-22|R Labelle|Endless track vehicle|
    US3750777A|1972-04-07|1973-08-07|R Thompson|Propulsion unit for skier|
    US3809173A|1972-08-21|1974-05-07|Leod D Mc|Ski propelling device|
    US3826323A|1973-04-12|1974-07-30|A Mehne|Propelling apparatus for skiers|
    US3853192A|1973-10-09|1974-12-10|Saroy Eng|Power driven ski|
    US3964560A|1975-02-20|1976-06-22|Saroy Engineering|Power driven ski|
    US4175627A|1975-07-25|1979-11-27|Saroy Engineering|Propulsion system for a snow going device|
    US4096919A|1976-09-02|1978-06-27|Thompson Richard G|Propulsion unit for skiers|
    US4102292A|1976-10-05|1978-07-25|Hunter Ralph W|Amphibious vehicle|
    US4146101A|1976-11-16|1979-03-27|Aime Plourde|Snow cycle vehicle|
    FR2431304B1|1978-07-18|1981-12-04|Jaulmes Eric|
    US4257652A|1978-11-20|1981-03-24|Edwards Charles R|Device for transporting materials across fragile structures|
    FR2450191B1|1979-03-02|1982-03-26|Maydieu Jacques|
    US4421193A|1981-01-05|1983-12-20|Bissett Fred L|Tread powered ski|
    US4433634A|1982-02-05|1984-02-28|Coast Machinery, Inc.|Tracked, amphibious vehicle with track securement and guide means|
    IT1155528B|1982-04-14|1987-01-28|Giovanni Allisio|SELF-PROPELLED GROUP SUITABLE FOR COMMANDING THE ADVANCE ON A SNOW COVERED ROUTE OF A PERSON WITH SNOW SKIING|
    US4519470A|1983-03-29|1985-05-28|Giovanni Allisio|Self-propelled unit for propelling a person wearing snow skis along a rising snow path|
    US4548315A|1983-06-07|1985-10-22|Dravo Corporation|Tethered vehicle for moving bulk material|
    GB8321783D0|1983-08-12|1983-09-14|Armstrong P D|Ski lift|
    JPH0320236Y2|1986-05-30|1991-04-30|
    JPS6353185A|1986-06-03|1988-03-07|Uiriamu Sazaarando Ni Edowaado|Improved self-propelling type caddie|
    FR2604367B1|1986-09-26|1988-12-23|Imberteche Rene|DEVICE FOR ELECTRICAL ASSISTANCE TO THE DIFFERENT FUNCTIONS OF A UNIVERSAL SKI|
    CA1293757C|1988-02-09|1991-12-31|Bronislaw Kadela|All terrain off road vehicle|
    US4984648A|1988-12-21|1991-01-15|Michael Strzok|Motorized skiboard|
    FR2651201B1|1989-08-31|1991-10-25|Framatome Sa|VEHICLE WITH INCLINABLE TRACKS.|
    FR2664225A1|1990-07-09|1992-01-10|Framatome Sa|MOTORIZED PROPELLER VEHICLE.|
    FR2673545B1|1991-03-07|1993-06-04|Lembardo Guillaume|SKIS OR MONO-SKI EQUIPPED WITH MOTORIZED LIFT TRACKS AND RETRACTABLE GUIDE BLADES.|
    US5181478A|1991-12-23|1993-01-26|Sebastiano Berardi|Amphibious vehicle with retractable wheels|
    IT229127Y1|1992-01-27|1998-06-24|Nunziato Bianco|AUTOMATED TROLLEY FOR THE TRANSPORT AND THE ASCENT OF ONE OR MORE PEOPLE ON THE SNOW AND ICE AS WELL AS SLEED MOTORCYCLES EQUIPPED WITH FOUR|
    FR2688701A1|1992-03-23|1993-09-24|Martinez Michel|Snowboard propelled by a thermal motor and a caterpillar track|
    AU3861493A|1992-06-04|1993-12-09|Johannes Ulrich Minder|Mobile controllable device|
    US5363937A|1992-10-19|1994-11-15|Lmc Operating Corp.|Battery operated tracked vehicle|
    WO1994015683A1|1993-01-15|1994-07-21|Pedro Salcedo Garcia|Autonomous transporter for skiers|
    US5662186A|1993-12-20|1997-09-02|Welch; Mark C.|Power-Driven Snowboard|
    DE4409677A1|1994-03-17|1994-08-11|Klapproth Ernst Peter|Motorised sledge|
    CA2135653A1|1995-03-28|1996-09-29|Andre Morneau|Skidoo|
    CA2237776A1|1995-11-17|1997-05-29|Harry E. Dempster|Portable, power-drive unit and accessory attachment|
    JP3016507B2|1996-02-22|2000-03-06|本田技研工業株式会社|Crawler truck|
    CA2195916C|1997-01-24|2005-09-20|Allen Clifford Robinson|Drive system|
    SK283293B6|1997-06-24|2003-05-02|Comi, Spol. S R.O.|Self-propelling device|
    US6408962B1|2000-04-21|2002-06-25|Jason Ryckman|Convertible sled for transporting large game|
    US6725959B1|2001-12-20|2004-04-27|Raymond Shea|Motorized snow board vehicle|
    GB2390837B|2002-07-02|2006-01-11|Snowdome Ltd|Snowmobiles|
    US6880651B2|2003-05-14|2005-04-19|Singapore Technologies Kinetics Ltd.|Articulated vehicle, an articulation device and a drive transmission|
    DE20316238U1|2003-10-20|2003-12-18|Dorma Gmbh + Co. Kg|Fitting for an all-glass door|
    JP2006123595A|2004-10-26|2006-05-18|Yamaha Motor Co Ltd|Snowmobile|
    US7131507B2|2005-01-14|2006-11-07|Wenko Ag Burgdorf|Tracked ATV|
    EP1924487B1|2005-08-29|2009-07-01|Sin Andamios Almansa, Sl|Robot for the treatment and/or working on steel external structures|
    FR2893585B1|2005-11-18|2009-05-08|Mathieu Leclercq|SURF AND SKATE OF SNOW PROPULSES BY A MOTOR COUPLE A CHENILLE|
    JP2007182137A|2006-01-06|2007-07-19|Suzuki Motor Corp|Multi-axle drive snowmobile|
    US7434644B2|2006-03-01|2008-10-14|Wier Kenneth L|Powered snowboard|
    JP4284335B2|2006-06-01|2009-06-24|株式会社竹内製作所|Work vehicle|
    CA2569900C|2006-11-30|2014-01-07|Ryan Fairhead|Vehicle|
    US7784571B2|2007-01-11|2010-08-31|Glen Brazier|Motorized snowboard|
    CA2575224A1|2007-01-24|2008-07-24|Bombardier Recreational Products Inc.|Snowmobile with improved drive train|
    US7905310B2|2007-04-19|2011-03-15|Peter James Hues|All-terrain powered vehicle and method of steering|
    CN201367040Y|2009-02-25|2009-12-23|刘道静|Track cart|
    US8789628B2|2009-07-14|2014-07-29|Timmy R. Swenson|Multi-terrain motorized wheelchair apparatus|
    PL2558353T3|2010-04-15|2015-12-31|Yvon Martel|Compact pulling apparatus|
    DE102010043511A1|2010-11-05|2012-05-10|Kässbohrer Geländefahrzeug AG|snowcat|
    US9284001B2|2011-03-04|2016-03-15|Navatek, Ltd.|Buoyant track amphibious transporter and traction cells therefor|US8026729B2|2003-09-16|2011-09-27|Cardiomems, Inc.|System and apparatus for in-vivo assessment of relative position of an implant|
    US7245117B1|2004-11-01|2007-07-17|Cardiomems, Inc.|Communicating with implanted wireless sensor|
    US9821865B2|2010-04-15|2017-11-21|Yvon Martel|Compact pulling apparatus|
    PL2558353T3|2010-04-15|2015-12-31|Yvon Martel|Compact pulling apparatus|
    US8827014B2|2010-04-15|2014-09-09|Yvon Martel|Compact pulling apparatus|
    ES2718125T3|2012-10-19|2019-06-27|Yvon Martel|Compact drive unit including juxtaposed endless tracks|
    US20140262577A1|2013-03-12|2014-09-18|William M. Ambrisco|Towing system|
    CN103158796B|2013-03-15|2015-05-20|黄刚|Continuous track walking mechanism|
    SE538232C2|2013-05-08|2016-04-12|BAE Systems Hägglunds Aktiebolag|Drive unit for tracked vehicles and vehicles equipped with drive unit|
    KR102206902B1|2013-07-11|2021-01-22|이본 마르텔|Compact pulling apparatus|
    ES2486590B1|2014-02-14|2015-05-26|Alfredo ZUFIAUR FERNÁNDEZ DE BETOÑO|Snow Plow|
    NO339366B1|2015-03-12|2016-12-05|Rottefella As|System for optional dynamic positioning of a ski binding|
    CN108245870B|2016-12-29|2020-04-10|厦门扬恩科技有限公司|Novel take skis of manual brake|
    CA2990664A1|2017-01-03|2018-07-03|John Burnett Coast|Amphibious transport system|
    JP2018127183A|2017-02-10|2018-08-16|株式会社 神崎高級工機製作所|Crawler drive device and crawler type travel device|
    CA2987210A1|2017-11-30|2019-05-30|Yvon Martel|Steerable coupling linkage for a compact pulling apparatus|
    JP6827436B2|2018-03-12|2021-02-10|ヤンマーパワーテクノロジー株式会社|Crawler traveling device|
    法律状态:
    2018-12-26| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-11-12| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2020-10-06| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2020-12-01| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 15/04/2011, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    US34253810P| true| 2010-04-15|2010-04-15|
    US61/342,538|2010-04-15|
    PCT/CA2011/050202|WO2011127607A1|2010-04-15|2011-04-15|Compact pulling apparatus|
    [返回顶部]