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Wheelchair Patent Ideas Search

Wheelchair

A wheelchair including three component parts: a propulsion means, a support means provided with means for receiving the legs of a chair, and a chair. The propulsion means is removably engaged with the support means by sliding the propulsion means into the support means. The propulsion means includes a ratchet and sprocket means. The occupant propels the wheelchair forward and backward by moving a handle attached to the ratchet in a rowing type motion. A chair is then engaged with the support means by inserting the chair legs into the means for receiving the chair legs on the support. The means located on the support for receiving chair legs can be varied to accommodate a variety of chair types. The chair is optionally provided with a central opening for facilitating toilet use

WHEELCHAIR PROPULSION KIT

A manual propulsion kit for a wheelchair when the wheelchair includes a frame with two large wheels on either side of the frame journaled to axles on the frame, each of the large wheels mounting a circular handrail. The kit including a pair of manual propulsion assemblies wherein each assembly includes a lever adapted to be journaled to one of the axles for rotational movement within a predetermined angular sector determined by a substantially vertical neutral position and a position forward of the frame. A crank handle having a crank web member is pivoted for rotation, at the end of the lever arm adjacent the handrail when the lever arm is mounted to the axle, such that the crank member defines an arc and moves between a neutral position disengaged from the handrail and a forward position at a tangent to the handrail. A crank handle grip is mounted to the crank web member. Friction means are associated with the crank web member adapted to engage the handrail when pressure is applied to the crank handle to move the web member to a forward position whereby the manual propulsion assembly can be utilized to propel the wheelchair forwardly or rearwardly.

Wheelchair

A wheelchair easy to move. The burden imposed both on the user of the wheelchair and on a person who helps him is remarkably reduced. The wheelchair comprises a chair body 5 with a seat 1 and armrests 3a, 3b, right and left large wheels 7a, 7b provided on right and left sides of the chair body, right and left front casters 9a, 9b provided in front of the chair body, each of the front casters being adapted to turn in different horizontal directions. The chair body is provided at the rear thereof with right and left rear casters 21a, 21b, each of the rear casters being adapted to turn in different horizontal directions, the position of each of the rear casters being vertically adjustable. The position of each of the large wheels is adjustable forward and backward.

Anti-tip caster suspension for a wheelchair

An anti-tip suspension for a wheelchair having rear casters is defined. The suspension includes a rocker arm support, a rocker arm and a spring. The rocker arm is pivotally attached to the rocker arm support so that it is rotatable with respect to the rocker arm support. The spring engages the rocker arm and rocker arm support, biasing them away from one another. The rocker arm includes a rotation limiter that limits the rotation of the rocker arm with respect to the rocker arm support in one direction.

 

Related Patent
Patent NO. Wheelchair Patent Title
301 20020053778 Wheelchair
302 20020043781 "WHEELCHAIR PROPULSION KIT"
303 20020038943 Wheelchair
304 20020030343 Anti-tip caster suspension for a wheelchair
305 20020024196 Commode and shower wheelchair
306 20020020986 Wheelchair foot rest or leg rest attachment bracket
307 20020004961 Wheel cleaning apparatus for a wheelchair
308 20020000706 Combination lift mechanism and wheelchair
309 20010055520 Automatic wheelchair restraining device
310 20010049908 Automatic mechanism for wheelchair lift passenger access door
311 20010040354 Wheelchair automatic anti-rollback assembly
312 20010032916 Wheelchair swivel platform
313 20010031195 Dual function inboard barrier/bridgeplate assembly for wheelchair lifts
314 20010031183 Automatic wheelchair restraining device
315 20010024604 Automatic wheelchair restraining device
316 20010022244 Auxiliary power device of wheelchair
317 20010013436 WHEELCHAIR MOTORIZING APPARATUS
318 20010011805 WHEELCHAIR WITH A FRONT WHEEL SUPPORT , WHEELCHAIR WITH AN ADJUSTABLY INCLINED SEAT, WHEELCHAIR WITH VARIABLY INCLINED REAR WHEEL AXLES, SEAT MODULES FOR A WHEELCHAIR, USE OF THE SEAT MODULE AND USE OF THE WHEELCHAIR
319 20010011613 Mid-wheel drive power wheelchair
320 20010007389 Wheelchair hand rim
321 20010005073 Lightweight motorized wheelchair
322 20010002081 WHEELCHAIR WITH ADJUSTABLE SEAT
323 20010001031 Wheelchair restraint system for a transportation vehicle
 
 
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Air Purifier
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Badge Holder
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Blister Packaging
Cable Lock
Cable Ties
Carpet
Caster Wheel
CCtv Camera
Cell Phone
Computer Desk
Computer Rack
Conference System
Conference Table
Copier
Counterfeit Detector
Credit Card
Dental Care
Desiccant
Digital Video Recorder
Domain Names
Dome Camera
Double Sided Tape
Electric Hoist
Electric Wheel Chair
Ethernet Switch
Exit Sign
Fire Extinguisher
First Aid Kit
Flow Meter
Forklift Truck
Garden Light
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Geogrid
Glue Gun
Hair Treatment
Hand Dryer
Health Care
Hearing Aid
Heat Shrink Tube
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Ink Refill
Inkjet Cartridge
Insurance
Investment Casting
Juice
Juice Extractor
Kitchen Faucet
Laminate Flooring
Lanyard
Laptop
Laser Engraving Machine
Latex Gloves
LED Display
Linear Bearing
Massage Chair
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Microscope Camera
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Nitrogen Generator
Office Chair
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Paper Shredder
Patch Cord
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Photo Paper
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Printed Circuit Board
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Printer Ribbon
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Projector
Radiant Heat
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Security Door
Self-adhesive Label
Shopping Cart
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Terminal Blocks
Thermocouple
Toner Cartridge
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