Ladder assembly for a fire apparatus
First Claim
1. A quint configuration fire apparatus, comprising:
- a chassis;
a pump and a water tank coupled to the chassis;
a body assembly coupled to the chassis and having a storage area configured to receive a ground ladder and a fire hose;
a single front axle coupled to a front end of the chassis and a single rear axle coupled to a rear end of the chassis; and
a ladder assembly including;
a first section, a second section, a third section, and a fourth section, wherein the ladder assembly has an end that is coupled to the chassis;
a pad slidably coupling the first section to the second section, the pad defining a first engagement surface and a second engagement surface, wherein the first engagement surface is spaced an offset distance from the second engagement surface; and
a resilient member coupling the pad to a bracket, wherein the bracket is positioned to support the pad such that the first engagement surface and the second engagement surface contact the second section and transfer loading along the ladder assembly;
wherein the ladder assembly is configured to support a tip capacity of at least 750 pounds, wherein the water tank is configured to contain at least 500 gallons of water, and wherein the center of gravity of at least one of the chassis, the body assembly, the pump, and the water tank are positioned to counterbalance a moment associated with the tip capacity with the ladder assembly extended to the horizontal reach of at least 90 feet.
1 Assignment
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Accused Products
Abstract
A quint configuration fire apparatus includes a chassis, a pump and a water tank coupled to the chassis, a body assembly coupled to the chassis, a single rear axle coupled to a rear end of the chassis, and a ladder assembly having an end that is coupled to the chassis. The ladder assembly includes a first section, a second section, a third section, and a fourth section, a pad slidably coupling the first section to the second section, the pad defining a first engagement surface and a second engagement surface, and a resilient member coupling the pad to a bracket. The first engagement surface is spaced an offset distance from the second engagement surface. The bracket is positioned to support the pad such that the first engagement surface and the second engagement surface contact the second section and transfer loading along the ladder assembly.
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Citations
13 Claims
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1. A quint configuration fire apparatus, comprising:
- a chassis;
a pump and a water tank coupled to the chassis;
a body assembly coupled to the chassis and having a storage area configured to receive a ground ladder and a fire hose;
a single front axle coupled to a front end of the chassis and a single rear axle coupled to a rear end of the chassis; and
a ladder assembly including;
a first section, a second section, a third section, and a fourth section, wherein the ladder assembly has an end that is coupled to the chassis;
a pad slidably coupling the first section to the second section, the pad defining a first engagement surface and a second engagement surface, wherein the first engagement surface is spaced an offset distance from the second engagement surface; and
a resilient member coupling the pad to a bracket, wherein the bracket is positioned to support the pad such that the first engagement surface and the second engagement surface contact the second section and transfer loading along the ladder assembly;
wherein the ladder assembly is configured to support a tip capacity of at least 750 pounds, wherein the water tank is configured to contain at least 500 gallons of water, and wherein the center of gravity of at least one of the chassis, the body assembly, the pump, and the water tank are positioned to counterbalance a moment associated with the tip capacity with the ladder assembly extended to the horizontal reach of at least 90 feet. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
- a chassis;
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13. A ladder assembly for a fire apparatus, comprising:
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a first section; a second section including a base rail, a hand rail, and a lacing member; a pad slidably coupling a distal end of the first section to the second section, the pad defining a first engagement surface and a second engagement surface, wherein the first engagement surface is spaced an offset distance from the second engagement surface; a bracket coupled to the first section and positioned to support the pad such that the first engagement surface and the second engagement surface contact the base rail of the second section; and a resilient member disposed between the bracket and the pad thereby facilitating isolated movement between the first section and the second section.
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Specification