Safety device
First Claim
1. A safety device for preventing a motor vehicle from running over an object, said safety device being attachable to said vehicle, said safety device comprising:
- a first assembly including first and second members, said members being spaced apart, said second member being pivotably connected to said first member;
a safety bar assembly slidably connected to said second member of said first assembly;
first means for raising and lowering said safety bar assembly with respect to said first assembly;
at least one switch assembly extending between said members; and
second means for turning off the motor vehicle, said switch assembly being connected to said second means;
wherein when the safety bar assembly is contacted by an object, the second member pivots relative to the first member and causes said switch assembly and said second means to turn off the motor vehicle.
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Accused Products
Abstract
A safety device attachable to a motor vehicle for preventing the motor vehicle from running over an object, the device including a plate assembly, a safety bar assembly slidably connected to the plate assembly, a first mechanism for raising and lowering the safety bar assembly with respect to the plate assembly, at least one switch assembly and a second mechanism for turning off the motor vehicle. The plate assembly includes first and second plate members which are spaced apart in parallel. The second plate member is pivotably connected to the first plate member. The second plate member pivots around a horizontal axis. The first mechanism is attached to the second plate member. The safety bar assembly is attached to the second plate such that it can only slide relative to the second plate in a direction towards and away from the second plate. The switch assembly is attached to the first plate and extends to contact the second plate. The switch assembly is connected to the second mechanism. When the safety bar assembly is contacted by an object, the second plate member pivots relative to the first plate member about its horizontal axis and causes the switch assembly and the second mechanism to turn off the motor vehicle. In addition, the safety device may include an audio device for emitting an audio signal when the second plate pivots relative to the first plate.
25 Citations
20 Claims
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1. A safety device for preventing a motor vehicle from running over an object, said safety device being attachable to said vehicle, said safety device comprising:
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a first assembly including first and second members, said members being spaced apart, said second member being pivotably connected to said first member; a safety bar assembly slidably connected to said second member of said first assembly; first means for raising and lowering said safety bar assembly with respect to said first assembly; at least one switch assembly extending between said members; and second means for turning off the motor vehicle, said switch assembly being connected to said second means; wherein when the safety bar assembly is contacted by an object, the second member pivots relative to the first member and causes said switch assembly and said second means to turn off the motor vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A safety device for preventing a motor vehicle from running over an object, said safety device being attached to said motor vehicle, said safety device comprising:
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a plate assembly including a front and a back plate, said plates being spaced apart in parallel planes and oriented vertically when the device is not in contact with an object, said back plate being connected to said motor vehicle, said front plate being pivotably connected to said back plate; a safety bar assembly slidably connected by rods to said front plate, said safety bar assembly being connected to said front plate such that it can slide towards and away from said front plate, said safety bar assembly having at least up and down positions; a fluid motor assembly for raising and lowering said safety bar assembly, said fluid motor assembly being attached to said front plate; at least one switch assembly attached to said back plate and extending to contact said front plate; and means for turning off the motor vehicle, said switch assembly being connected to said means; wherein when the safety bar assembly is contacted by an object, said front plate pivots relative to said back plate and causes said switch assembly and means to turn off the motor. - View Dependent Claims (19)
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20. A safety device attached to the front of a school bus to prevent the bus from running over an object, said safety device comprising:
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a plate assembly including a front plate and a back plate, said back plate being attached to said front of said bus, said plates being positioned in spaced parallel planes and oriented vertically when said device is not in contact with an object, said front plate being pivotably connected to said back plate; a safety bar assembly slidably connected to said front plate, said safety bar assembly extending downward from said front plate, said safety bar assembly being connected to said front plate such that said safety bar assembly can only slide towards and away from said front plate relative to said front plate, said safety bar assembly having at least up and down positions; first means for raising and lowering said safety bar assembly between said up and down positions, said first means being attached to said front plate; at least one switch assembly attached to said back plate and extending to said front plate; and second means for turning off the motor vehicle, said switch assembly being connected to said second means; wherein when the said safety bar assembly contacts an object, said front plate pivots relative to said back plate and causes said switch assembly and said second means to turn off the motor vehicle; said safety bar assembly being in said down position whenever the school bus door is open and in said up position at all other times.
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Specification