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US 5,419,571 AGranted
Wheel chair with provisions for patient walker
OwnerJack N. Vaughaninventor
Life of this patent
Estimating the term…
Abstract
A wheel chair, collapsible or otherwise, that includes provisions for a patient walker telescopically extendable from frame members of the wheel chair for operation in a first position as a conventional wheel chair and a second position where certain frame members extend forward with handholds to allow the patient to utilize the device quickly and easily as a walker. The handholds are adjustable vertically to accommodate users of different heights and the frame members are disposed telescopically in such a way so that the device may be easily converted from the wheel chair mode to the walker mode by the user. A hinged seat allows the device to be collapsed for storage purposes or for the seat to be lifted for additional room for the walker.
Claims14
A wheel chair that includes provisions for use as a patient walker comprising:
- a pair of rigid vertical rear frame members;
- a pair of rigid vertical front frame members;
- a pair of lower horizontal frame members, each of said lower horizontal frame members connecting one of said pair of vertical front frame members to one of said pair of vertical rear frame members;
- a pair of upper horizontal frame members;
- a pair of auxiliary frame members, each auxiliary frame member connected at one end to one of said pair of lower horizontal frame members;
- a wheel connected to each vertical frame member;
- a first pair of telescoping frame members, each of said first pair of telescoping frame members telescopically fitted within one of said lower horizontal frame members and extendable therefrom;
- a second pair of telescoping frame members, each of said second pair of telescoping frame members telescopically fitted within one of said upper horizontal frame members and extendable therefrom;
- means for limiting telescopic action of said first pair of telescoping frame members and said second pair of telescoping frame members, said means for limiting comprising a pair of rods, each of said rods connected between one of said pair of vertical front frame members and one of said pair of vertical rear frame members;
- a pair of handholds, each of said handholds connected to an upper portion of one of said vertical front frame members;
- a rigid seat member;
- and
- a seat back connected between said vertical rear frame members;
- said wheel chair being convertible between two modes of operation;
- a first, wheel chair mode wherein said first and second pair of telescoping frame members are retracted, and a second, walker mode wherein said first and second pair of telescoping frame members are extended.
12 more elements
A wheel chair that includes provisions for use as a patient walker comprising:
- a pair of rigid vertical rear frame members;
- a pair of rigid vertical front frame members;
- a pair of lower horizontal frame members, each of said lower horizontal frame members connecting one of said pair of vertical front frame members to one of said pair of vertical rear frame members;
- a pair of upper horizontal frame members;
- a pair of auxiliary frame members, each auxiliary frame member connected between one of said upper horizontal frame members and one of said lower horizontal frame members;
- a wheel connected to each vertical frame member;
- a first pair of telescoping frame members, each of said first pair of telescoping frame members telescopically fitted within one of said lower horizontal frame members and extendable therefrom;
- a second pair of telescoping frame members, each of said second pair of telescoping frame members telescopically fitted within one of said upper horizontal frame members and extendable therefrom;
- a pair of rods for limiting telescopic action of said first pair of telescoping frame members and said second pair of telescoping frame members, each of said rods connected between one of said pair of vertical front frame members and one of said pair of vertical rear frame members, each of said rods including a housing attached thereto, each of said rods further including a spring stop, wherein extension of said first pair of telescoping frame members and said second pair of telescoping frame members is limited by said spring stop when forward movement of said spring stop reaches said housing;
- a pair of vertically adjustable handholds, each of said handholds connected to an upper portion of one of said vertical front frame members;
- a collapsible cross-brace assembly comprising a pair of cross-brace members connected to and rotatable about said lower horizontal frame members;
- a rigid seat member;
- and
- a flexible, collapsible seat back connected between said vertical rear frame members, thereby allowing said vertical rear frame members to be movable relative to each other such that said wheel chair is in a collapsed position;
- said wheel chair being convertible between two modes of operation;
- a first, wheel chair mode wherein said first and second pair of telescoping frame members are retracted, and a second, walker mode wherein said first and second pair of telescoping frame members are extended.
13 more elements
A wheel chair that includes provisions for use as a patient walker comprising:
- a pair of rigid vertical rear frame members;
- a pair of rigid vertical front frame members;
- a pair of lower horizontal frame members, each of said lower horizontal frame members connecting one of said pair of vertical front frame members to one of said pair of vertical rear frame members;
- a collapsible cross-brace assembly comprising a pair of cross-brace members connected to and rotatable about said lower horizontal frame members;
- a pair of upper horizontal frame members;
- a pair of auxiliary frame members, each auxiliary frame member connected at one end to one of said pair of lower horizontal frame members;
- a wheel connected to each vertical frame member;
- a first pair of telescoping frame members, each of said first pair of telescoping frame members telescopically fitted within one of said lower horizontal frame members and extendable therefrom;
- a second pair of telescoping frame members, each of said second pair of telescoping frame members telescopically fitted within one of said upper horizontal frame members and extendable therefrom;
- a pair of handholds, each of said handholds connected to an upper portion of one of said vertical front frame members;
- a rigid seat member;
- and
- a seat back connected between said vertical rear frame members;
- said wheel chair being convertible between two modes of operation;
- a first, wheel chair mode wherein said first and second pair of telescoping frame members are retracted, and a second, walker mode wherein said first and second pair of telescoping frame members are extended.
12 more elements
Dependencies are inferred from the claim text.