DE2003977A1 - Rollback lock for vehicles of all kinds - Google Patents

Description

Rollback lock for vehicles of all kinds.

The invention relates to a rollback lock for vehicles of all types, e.g. road, rail or other vehicles, any type of drive, e.g. electric or combustion engine and any drive transmission, e.g. gearbox, continuously variable Transmission, automatic transmission, torque converter, etc.

A vehicle, e.g. a passenger car, can be operated with a hand or Parking brake can be stopped or blocked. The vehicle is supposed to be in motion are set, then the hand or parking brake must be released beforehand. In at this moment the vehicle can begin to roll.

On the level, it can roll forwards or backwards, depending on the slope of the terrain. When starting up a hill or on a ramp, the driver has to perform a difficult maneuver so that the vehicle does not roll back. He must be simultaneous and on top of each other Release the handbrake in a coordinated manner, accelerate and engage. Even experienced people can do this Drivers not always perfect. In the most harmless case, Nan can stall the engine. On steep mountain stretches, however, starting off is possible due to the possibility of rolling backwards of the vehicle associated with a considerable risk of accident. When stopping when driving uphill the driver must quickly switch from the accelerator pedal to the brake in order to roll back to avoid. Also on ramps (e.g. in parking garages) and in vehicle queues thereby given the danger of a collision. After a short while on a level road Stopping the vehicle without using the handbrake, e.g. in front of a traffic light, the driver usually does not notice the vehicle rolling back very slowly or too late. A collision with the following vehicle is also possible here and the order of the day with today's traffic density.

The invention is based on the idea of a vehicle rolling in to prevent the direction opposite to the direction of travel.

This object is achieved in that the direction of travel opposite Direction of rotation of any rotating part of the vehicle is blocked.

This can be done with solvents known per se, such as e.g.

by claw lock, freewheel, brake band, electric, hydraulic etc. The lock can have a double and opposite effect, i.e. at Rolling back is blocked when driving forwards, and rolling forward when driving backwards. The lock can be mechanically, electrically, can be solved hydraulically or pneumatically.

It can also be arranged to automatically match that of the selected Direction of travel in the opposite direction blocked (e.g. in the case of a motor vehicle with arrangement the lock between the clutch and the gearbox).

Freewheel or overrunning clutch in drive transmissions are known of vehicles, but only in the function between two rotating elements against each other and not to locate a direction of rotation.

The advantage achieved by the invention is that starting of a vehicle on the mountain is made considerably easier and unproblematic. A roll back and the associated risk of accident is excluded. When driving uphill is at Stop using the handbrake or footbrake is no longer necessary. On the same level The road surface is rolling back and the associated risk of a collision switched off.

Claims (3)

Patent claims: t9 Rollback lock for vehicles of all types, especially motor vehicles all drive type and drive transmission type, characterized in that the Direction of travel opposite direction of rotation of any rotating part of the vehicle is blocked with known means. 2. Rollback lock according to claim 1, characterized in that this Block in double, opposite execution, always that of the selected direction of travel opposite direction of rotation of a rotating drive part blocked. 3. Rollback lock according to claim 1 and 2, characterized in that that this lock automatically corresponds to the selected direction of travel if so arranged opposite direction blocked, or that this block when choosing the blocked Direction of travel is solved with known technical means.