Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60F—VEHICLES FOR USE BOTH ON RAIL AND ON ROAD; AMPHIBIOUS OR LIKE VEHICLES; CONVERTIBLE VEHICLES
  • B60F3/00—Amphibious vehicles, i.e. vehicles capable of travelling both on land and on water; Land vehicles capable of travelling under water
  • B60F3/0007—Arrangement of propulsion or steering means on amphibious vehicles
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60F—VEHICLES FOR USE BOTH ON RAIL AND ON ROAD; AMPHIBIOUS OR LIKE VEHICLES; CONVERTIBLE VEHICLES
  • B60F3/00—Amphibious vehicles, i.e. vehicles capable of travelling both on land and on water; Land vehicles capable of travelling under water
  • B60F3/003—Parts or details of the vehicle structure; vehicle arrangements not otherwise provided for
  • B60F3/0038—Flotation, updrift or stability devices
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60F—VEHICLES FOR USE BOTH ON RAIL AND ON ROAD; AMPHIBIOUS OR LIKE VEHICLES; CONVERTIBLE VEHICLES
  • B60F3/00—Amphibious vehicles, i.e. vehicles capable of travelling both on land and on water; Land vehicles capable of travelling under water
  • B60F3/0061—Amphibious vehicles specially adapted for particular purposes or of a particular type
  • B60F3/0069—Recreational amphibious vehicles

Definitions

• the invention relates to an amphibious vehicle with a single drive motor, which can drive a travel drive and a floating drive either independently or simultaneously.
• All kinds of motor vehicles are increasingly used in the leisure area for entertainment purposes. Examples of this are snowmobiles, jet skis or beach choppers, which are designed with three or four balloon tires and can therefore also move in the sand.
• a disadvantage of the known vehicles is that they can only be used in one environment or are not suitable for entertainment purposes. Examples of this are snow caterpillar vehicles or amphibious vehicles.
• the known amphibious vehicles for military or civil purposes are relatively large and bulky. The main reason for this is that the underside of the motor vehicle is modeled on a boat hull in order to ensure buoyancy. In other embodiments, attempts are made to improve conventional motor vehicles by means of modifications such as floating booms in the buoyancy, the water speeds which can be achieved thereby remaining unsatisfactory.
• a disadvantage of the known amphibious vehicles is either the complicated assembly or disassembly or the high costs for an automatic insertion and removal device for the blade system.
• an amphibious motor vehicle with a motor which drives a water drive directly and a land drive via a transmission, a clutch being used in the drive train of the land drive, the clutch force of which during loading and water travel according to the difference between the actual and target speed of the land drive can be changed in such a way that the drive speed can be regulated in a controlled manner up to the target speed.
• the drive motor of the amphibious motor vehicle can also be driven at full speed when landing, so that the water drive, which can be designed as a screw or jet, emits the maximum thrust to support loading and the water exit.
• a drive system for an amphibious vehicle is known from DE 39 16 200 A1, in which only a single drive motor is required and the drive and the floating drive can nevertheless be operated independently of one another or simultaneously.
• the traction drive train and the floating drive train can be controlled or regulated independently of one another with respect to speed and power. This is of great advantage especially when landing (transition from water to land) and Abianden (transition from land to water), e.g. the wheels of the amphibious vehicle do not dig into the soft bank of the bank.
• a single drive train can be sufficient for the traction drive, and a single float drive train can suffice for the floating drive. If the amphibious vehicle has several floating propulsion devices, for example several propellers or several hydrojets, then it is advantageous if each of these floating propulsion devices has its own floating drive train, which can be controlled or regulated either jointly or independently of one another.
• the invention is therefore based on the technical problem of creating an all-terrain amphibious vehicle, in particular for leisure purposes, which can be switched from driving to swimming operation with minimal effort, allows sufficiently high speeds and an open seating position of the motor vehicle driver in both operating modes.
• the amphibious vehicle is fully off-road, whereby the floating drive, which is designed as a jet drive, on the one hand ensures sufficient water speeds and, on the other hand, in contrast to a screw, cannot be damaged so easily while driving and poses no risk of injury to third parties.
• the floating drive which is designed as a jet drive
• the tires of the amphibious vehicle are designed as balloon tires which, on the one hand, benefit the driving mode in the sand and, on the other hand, act as a buoyancy element in swimming mode, the rear balloon tires preferably being somewhat larger than the front balloon tires for driving mode.
• additional discrete buoyancy bodies which are preferably designed as air tanks, can additionally be provided in the front and / or rear area of the amphibious vehicle.
• these discrete buoyancy bodies which can be designed to be removable, the buoyancy point can moreover be set better.
• Fig. 1 is a schematic side view of an amphibious vehicle and Fig. 2 is a schematic bottom view of the amphibious vehicle.
• the amphibious vehicle 1 shows an amphibious vehicle 1 with an open seating arrangement for two people.
• the amphibious vehicle 1 comprises a drive motor 2, a motor transmission 3, a first clutch 4 for driving a jet drive 5 and two further clutches for independently driving the front wheels 6 and the rear wheels 7.
• the amphibious vehicle 1 comprises one in the rear area of the amphibious vehicle 1 arranged air tank 8 and an air tank 9 arranged in the front area.
• the drive motor 2 is centered between the front axle and the rear axle below the driver. As a result, the center of gravity 10 can be moved in front of the driver's sitting position when the vehicle is empty.
• the buoyancy which is essentially generated by the front wheels 6 and rear wheels 7 formed with balloon tires and the two air tanks 8, 9, can be adjusted by dimensioning them such that the buoyancy point 11 is below the driver's sitting position when the vehicle is empty. Due to the additional weight of the two vehicle occupants, who are sitting relatively high, the center of gravity 12 shifts upward on the one hand with the total vehicle weight and on the other hand below that of the driver's sitting position. Since the buoyancy point 13 only shifts upward with the total vehicle weight, the center of gravity 12 and the buoyancy point 13 are on an effective line, so that no resulting torque exists and the amphibious vehicle 1 assumes a stable swimming position. To improve the flow dynamics, the air tank 9 is designed with a bevel, the apex of which forms an angle ⁇ of preferably 40 ° to the water surface.
• Another possibility for improving the buoyancy is to enlarge the axle width of the amphibious vehicle 1 in comparison to conventional off-road vehicles, such as the beach choppers.
• the drive trains comprise the centrally arranged drive motor 2 and the motor gear 3, which are assigned to both the travel drive and the jet drive 5.
• the motor transmission 3 is connected via a cardan shaft 14 to a front axle transmission 15, via which the front wheels 6 can be driven.
• the motor transmission 3 is connected via an output shaft 16 to a rear axle transmission 17, via which the two rear wheels 7 can be driven by means of a rigid rear axle 18.
• at least two clutches are provided, which are arranged either on the engine transmission 3 or in the front axle transmission 15 or rear axle transmission 16. The two clutches can be controlled independently of one another.
• the motor transmission can be brought into engagement with a bevel gear transmission 19 of the jet drive 5 via the coupling 4, the coupling 4 being independently controllable.
• the clutch 4 When driving, the clutch 4 is open and the front wheels 6 and / or rear wheels 7 are driven by the drive motor 2 and the motor transmission 3. In the floating mode, the clutch 4 is closed and, by engagement of the bevel gear mechanism 19, a screw is set in rotation, which has a bottom opening Sucks in water and presses in the direction of the jet nozzle 20. The ejected water jet then causes a forward impulse on the amphibious vehicle 1, on the basis of which the amphibious vehicle 1 is driven.
• the drive train can be disengaged while swimming or used to support buoyancy.
• the reverse gear is engaged so that the front wheels 6 and the rear wheels 7 rotate against the direction of travel.
• only the rear wheels 7 can also be driven via the mutually independent clutches.
• the steering in the swimming mode takes place primarily via the swiveling jet nozzle 20, the steering of the front wheels 6 being able to be used for support if necessary.
• the drive train is then downshifted in the forward gear, the drive torque being controlled or regulated in such a way that the wheels do not dig into the ground.
• an arrangement according to DE 39 16 200 A1 can be used here.

Landscapes

• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Transportation (AREA)
• Mechanical Engineering (AREA)
• Motorcycle And Bicycle Frame (AREA)
• Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
• Toys (AREA)
• Vehicle Body Suspensions (AREA)
• Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
• Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
• Automatic Cycles, And Cycles In General (AREA)
• Output Control And Ontrol Of Special Type Engine (AREA)
• Tires In General (AREA)

Priority Applications (5)

Applications Claiming Priority (2)

Publications (1)

Family

ID=7910580

Family Applications (1)

Country Status (10)

Cited By (4)

Families Citing this family (31)

Citations (7)

Family Cites Families (30)

• 1999
  • 1999-06-09 DE DE19926145A patent/DE19926145A1/de not_active Withdrawn
• 2000
  • 2000-05-31 ES ES00935154T patent/ES2263473T3/es not_active Expired - Lifetime
  • 2000-05-31 JP JP2001503279A patent/JP2003502201A/ja active Pending
  • 2000-05-31 DE DE50012992T patent/DE50012992D1/de not_active Expired - Fee Related
  • 2000-05-31 AT AT00935154T patent/ATE329771T1/de not_active IP Right Cessation
  • 2000-05-31 RU RU2002100129/11A patent/RU2248280C2/ru not_active IP Right Cessation
  • 2000-05-31 US US10/009,546 patent/US6672916B1/en not_active Expired - Fee Related
  • 2000-05-31 CN CNB008086281A patent/CN1170697C/zh not_active Expired - Fee Related
  • 2000-05-31 CA CA002374469A patent/CA2374469C/en not_active Expired - Fee Related
  • 2000-05-31 EP EP00935154A patent/EP1187732B1/de not_active Expired - Lifetime
  • 2000-05-31 WO PCT/EP2000/004980 patent/WO2000076794A1/de not_active Ceased

Patent Citations (7)

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