US 8,789,662 B2 · Wheeled carriage with brake lock system

Abstract

A wheeled carriage for supporting a patient has a wheeled base having frame members supporting a plurality of caster wheel assemblies and a braking system. A moveable brake lock assembly, a brake lock actuator, and a swivel lock receiver are operatively connected to one of the caster wheel assemblies to define a locking caster wheel assembly. The brake lock assembly comprises an actuating member, a swivel lock member, and a brake member that are interconnected as a unit for simultaneous movement. The brake lock actuator is operable to selectively move the brake lock assembly into an engaged position via engagement with the actuating member such that the swivel lock member engages the swivel lock receiver and the brake member contacts a wheel of the locking caster wheel assembly thereby preventing rotation and swiveling of the wheel.

Claims32

Dependent claims

A patient support apparatus comprising:

a base having a plurality of caster wheels;
a support deck supported on said base, said support deck adapted to support a patient;
a brake pedal movable between a brake position and a neutral position;
a plurality of brakes movable between a locked position and an unlocked position, each one of said plurality of brakes associated with a respective one of said plurality of wheels, and each one of said plurality of brakes including a first biasing mechanism adapted to urge a respective brake toward the unlocked position;
and
a second biasing mechanism operatively linked to said brake pedal, said second biasing mechanism urging said brake pedal either toward said brake position or said neutral position such that said brake pedal is biased against remaining in any intermediate position between said brake position and said neutral position, said plurality of brakes moving to the locked position when said brake pedal is in the brake position, and said brakes moving to the unlocked position when said brake pedal is in the neutral position.

3 more elements

A wheeled carriage for supporting a patient, said wheeled carriage comprising:

a wheeled base having frame members and supporting a plurality of caster wheel assemblies, each said caster wheel assembly including a wheel;
and
a braking system, said braking system including a moveable brake lock assembly, a brake lock actuator, and a swivel lock receiver, with said brake lock assembly, said brake lock actuator and said swivel lock receiver being operatively connected to one of said caster wheel assemblies to define a locking caster wheel assembly, said brake lock assembly comprising:
an actuating member, a swivel lock member, and a brake member, with said actuating member, said swivel lock member, and said brake member being interconnected as a unit for simultaneous movement;
said brake lock actuator operable to selectively move said brake lock assembly into an engaged position via engagement with said actuating member, with said swivel lock member engaging said swivel lock receiver and said brake member contacting said wheel of said locking caster wheel assembly thereby preventing rotation and swiveling of said wheel of said locking caster wheel assembly when said brake member is in said engaged position.

2 more elements

A wheeled carriage for supporting a patient, said wheeled carriage comprising:

a wheeled base having frame members and supporting a plurality of caster wheel assemblies each including a wheel, two of said caster wheel assemblies comprising a first pair of locking caster wheel assemblies,
each said locking caster wheel assembly including a moveable brake lock assembly, a brake lock actuator, and a swivel lock receiver, and with said brake lock assembly comprising:
an actuating member, a swivel lock member, and a brake member, with said actuating member, said swivel lock member, and said brake member being interconnected as a unit for simultaneous movement;
said brake lock actuator operable to selectively move said brake lock assembly into an engaged position via engagement with said actuating member, with said swivel lock member engaging said swivel lock receiver and said brake member contacting said wheel of said locking caster wheel assembly thereby preventing rotation and swiveling of said wheel of said locking caster wheel assembly when said brake member is in said engaged position;
a drive link operatively interconnecting said brake lock actuators of said first pair of locking caster wheel assemblies, said drive link being operable to simultaneously actuate both said brake lock actuators whereby both said brake lock assemblies are moved to said engaged position.

2 more elements

Dependencies are inferred from the claim text.

Wheeled carriage with brake lock system

Life of this patent

Wheeled carriage with brake lock system

Life of this patent

Abstract

Claims32