• 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:
    The trailer kicker is used to assist getting a car-trailer combination going on a steep uphill slope. The trailer is typically a boat trailer. Typically, assistance is needed When a boat has been towed from the water to a trailer and the car-boat trailer starts to be driven upward on the ramp. Such places are called boat ramps. The invention relates both to the purpose of use of device itself and to the use of a gas spring or a combination of a gas spring and a pneumatic cylinder as a source of mechanical force. It is also an invention that the gas spring is tensed by help of a load strap or a pneumatic cylinder in this kind of use. There may be several this kind of devices in one (boat)trailer. The trailer kicker consists of two different parts. The first sub-assembly is the mounting plates that secure the unit to the trailer. The (boat) trailer usually has a rectangular tube frame. The mounting plates (1) are clamped by bolts around the rectangular tube of the frame. In addition to the bolts, the mounting plates have an axle (2). The second subassembly is fixed to that axle (2) and it rotates freely about the centerline (A) of that axle (2). The second sub-assembly is an assembly consisting of a fastening body (3), a portion that is named here as a upper thigh-like part (4), a portion that is named here as a lower shin-like part (5) and a thrust plate (6) and associated actuators such as gas springs (7) and a load strap (8) and pneumatic cylinders (9).
    公开号:FI20207001A1
    申请号:FI20207001
    申请日:2020-01-05
    公开日:2021-03-31
    发明作者:Matti Koponen
    申请人:Matti Koponen；
    IPC主号:
    专利说明:

    TRAILER KICKER
    PURPOSE AND BACKGROUND TO THE INVENTION The invention named here as Trailer kicker is used to assist getting a car-trailer combination going on a steep uphill slope. The trailer is typically a boat trailer. Typically, assistance is needed when a boat has been towed from the water to a trailer and the car- boat trailer starts to be driven upward on the ramp. Such places are called boat ramps. In general, the ramps are quite steep, especially on the seashore, more often than average. The angle of the ramp influences substantially the force required for upward movement.
    An SUV would be optimal in that situation. However, a four-wheel drive vehicle is more expensive than a two-wheel drive vehicle and can also be more environmentally harmful. A large and heavy car consumes more fuel and is more expensive to buy. In a world affected by climate change, replacing four-wheel drive vehicles with lighter, more economical and cleaner front-wheel drive vehicles is increasingly important. Today, most cars are front-wheel driven. However, the problem with a front-wheel drive car on the ramp is that the front end of the car rises up and "looses weigth" due to the momentum transmitted from the wheels to the ground when the car pulls heavy load. In this case, the friction of the wheels may not be sufficient for car and trailer to move upwards. Even before that, there is a problem. The clutch of passenger car is not dimensioned for pulling very heavy loads. Gravity pulls the car and trailer backwards when car and trailer tries to move uphill. Getting uphill generates a lot more strain on the car's transmission, especially for the clutch. This problem also applies to rear and four-wheel — drive cars. Excessive slipping the clutch will often have to be done deliberately. The object of the trailer kicker is to ease the start off the car and trailer by reducing the load so that the weight of the trailer is partly supported by the invented device. The goal is to make the start off the car-trailer combination to be almost alike as a start off just a car. — Using the trailer kicker reduces wheel slipping and the need to slipping the clutch at the S moment of departure. N In modern cars, traction control prevents the car and trailer combination to proceed if the o wheels start to slip in ramp. That is why one may need to make several start offs. Each start LO 35 — off will overdo the clutch and transmission. The purpose of the device is to reduce the 9 number of those start offs needed. The device is a one-time operational, but it can be = reloaded guickly. The car is usually always heavier than a boat trailer. The situation will = ease when the car rises to a flat ground. However, depending on the ramp, you need to get S up 5-15 meters uphill before the load situation eases. O 40 S The invention relates both to the purpose of use of device itself and to the use of a gas IN spring or a combination of a gas spring and a pneumatic cylinder as a source of mechanical force. It is also an invention that the gas spring is tensed by help of a load strap or a pneumatic cylinder in this kind of use. There may be several this kind of devices in one 45 — (boat)trailer.
    No similar devices were found in Patent Search nor was the gas spring used in this type of application.
    LIST OF THE FIGURES The invention will be described in detail with reference to the following drawings in which: Figure 1 shows a trailer kicker having a gas spring and a load strap being used to tension the spring; Figure 2 shows a trailer kicker having a gas spring and a pneumatic cylinder used for tensioning the spring and as an additional power source.
    DETAILED DESCRIPTION OF THE INVENTION The trailer kicker consists of two different parts. The first sub-assembly is the mounting plates that secure the unit to the trailer. The (boat) trailer usually has a rectangular tube — frame. The mounting plates (1) are clamped by bolts around the rectangular tube of the frame. In addition to the bolts, the mounting plates have a shaft (2). The second subassembly is fixed to that axis and it rotates freely about the centerline (A) of that axis. The second sub-assembly is an assembly consisting of a fastening body (3), a portion that — is named here as a thigh (4), a portion that is named here as a shin (5) and a thrust plate (6) and associated actuators such as gas springs (7) and a load strap (8) and pneumatic cylinders (9). The Thigh is attached to the fastening body. There is a joint between the thigh and the shin. The part named as shin revolves around the center line (B) of the pivot pin. The pusher plate is attached to the shin. The other end of the gas spring(s) (and the pneumatic cylinder(s)) is attached to the fastening body. The other end is attached to the shin. The frame of the load strap used to tense the device is attached to the fastening body. The load strap is attached to the lower end of shin or it circulates around a pin so that force is O 30 transmitted through the bearing and u-shaped support member to the shin. The end of the N . . , . . o strap is then attached to the fastening body. The unit can also be tensed with a pneumatic i cylinder. The pneumatic cylinder can also be used to change the direction of movement, it o can be used also for pushing, to assist the gas springs. Pneumatic cylinder can be replaced LO with electric actuator. © 35 E In transport position, the thigh is locked in a horizontal position parallel to the trailer body. = Likewise, the shin is then in a nearly horizontal position. When the device is put into use, it 5 has to be tensed so that the shin revolves about 90 degrees. The lower end of the shin 2 points then slightly forward. After that the locking of the thigh is loosed. The device < 40 rotates because its own weight so that the pusher plate contacts the ground. The tensing is S then triggered either by releasing the strap lock or by reversing the movement of the pneumatic cylinder. The unit is now operational and aims to push the trailer forward.
    权利要求:
    Claims (5)
    [1] 1. A trailer kicker consists of two different parts. The first sub-assembly is the mounting plates that secure the unit to the trailer. The (boat) trailer usually has a rectangular tube frame. The mounting plates (1) are clamped by bolts around the rectangular tube of the frame. In addition to the bolts, the mounting plates have a shaft (2). The second subassembly is fixed to that axis and it rotates freely about the centerline (A) of that axis.
    The second sub-assembly is an assembly consisting of a fastening body (3), a portion that is named here as a thigh (4), a portion that is named here as a shin (5) and a thrust plate (6) and associated actuators such as gas springs (7) and a load strap (8) and pneumatic cylinders (9). The trailer kicker, characterized in that it assists in starting off a car-trailer combination on a steep uphill slope.
    [2] 2. The trailer kicker of claim 1, characterized in that it uses a gas spring or gas springs as a power source.
    [3] 3. The trailer kicker of claim 1, characterized in that the gas spring is tensed by help of aload strap or a pneumatic cylinder.
    [4] 4. The trailer kicker of claim 1, characterized in that a combination of gas spring (s) and compressed air cylinder (s) can also be used as a power source.
    [5] 5. The trailer kicker of claim 1, characterized in that it comprises a "thigh and shin" portion which is hinged to each other so that a gas spring pushes the lower end of the shin portion away from the mounting plates.
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    同族专利:
    公开号 | 公开日
    FI128937B|2021-03-31|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    2021-03-31| FG| Patent granted|Ref document number: 128937 Country of ref document: FI Kind code of ref document: B |
    优先权:
    申请号 | 申请日 | 专利标题
    FI20207001A|FI128937B|2020-01-05|2020-01-05|Trailer kicker|FI20207001A| FI128937B|2020-01-05|2020-01-05|Trailer kicker|
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