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Document |
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4534592 |
Lumbar support adjusting apparatus
A lumbar support adjusting apparatus has a release plate pressed against a ratchet by a compression spring for urging the release plate under uniform resilient forces, and biased to return in its...
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4531779 |
Automotive seat with lumbar support
An automotive or similar type vehicle seat comprising a seat back having an adjustable central portion which may be selectively adjustably positioned to minimize driver fatigue. The adjustable area...
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4489982 |
Pelvic support method and means
A method and means for providing pelvic support to improve posture and relieve lower back pain is provided. The method comprises pressing a convex pillow against the region of the ilia, sacrum, and...
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4469374 |
Automotive seat
An automotive or similar type vehicle seat comprising a seat back having an adjustable central portion which may be selectively adjustably positioned to minimize driver fatigue. The adjustable area...
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4465317 |
Mechanism for adjusting a lumbar support of a back of a seat or the like
The mechanism for adjusting a lumbar support of a back of an office seat, motor vehicle seat or the like, with a plate-like moulding (4) adjustable perpendicularly to the plane of the seat back...
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4465158 |
Safety device for vehicle seat with vibrator
A vehicle driver's seat is equipped with an electromagnetically operated vibrator arranged in its back-rest to be activated by energization of an electric control circuit for periodically supplying...
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4452485 |
Flexible elastic support
An adjustable-curvature structure, e.g. for seat backs, comprises a pair of support belts which are flexible but substantially inextensible, and a pair of tension belts juxtaposed with the support...
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4449751 |
Seat backrest having an adjustable lumbar support
A seat backrest having an adjustable lumbar support is provided wherein the cam surface of a rotatable cam of a regulating mechanism, which adjusts the lumbar support, is effectively utilized to...
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4425910 |
Seat having an adjustable backrest
The seat has a backrest with an adjustable vertebral support comprising two separate adjusting elements which act against the rear of the backrest cushion to vary the curvature and spinal support...
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4350388 |
Backrests
A chair backrest having a rigid rectangular base plate and a flexible back support member attached to but movable relative to the base plate, and a spacer between the base plate and the support...
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4316631 |
Backrest
A curved backing insert is held in a backrest frame and adjustable to conform to the spine of a person leaning against the backrest. The backing insert comprises at least one elastic bow having a...
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4313637 |
Seat having a movable lumbar support
The invention relates to a seat having a movable lumbar support. An arcuate lumbar support is mounted on a back rest frame of the seat by a mechanism which is operable to move the lumbar support...
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4309058 |
Load supporting frame
This invention relates to a load-supporting frame. A load-supporting frame has load-supporting means e.g. in the form of filaments stretched across the frame, the filaments being secured at one end...
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4296965 |
Seat with adjustable lumbar supporter
A backrest of a seat has therein an adjustable lumbar supporter which comprises a first rod member transversely crossing two side brackets of the backrest to be rotatable about the axis thereof, an...
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4295681 |
Seat having lumbar support and vertical height adjustment mechanism therefor
A seat backrest having a contourable upholstered portion supported by a rigid frame portion includes means to produce a desired supporting contour in the lumbar region of the seat occupant. The...
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4182533 |
Seat backrest having an adjustable lumbar support
A seat backrest having an upholstered cushion portion supported by a rigid frame portion includes means to produce a desired supporting contour in the lumbar region of the seat occupant. The...
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4162807 |
Lumbar support regulating apparatus
A vehicle seat of the type having a seat back with a plurality of transverse serpentine springs therein is provided with a regulating apparatus for adjusting the firmness of the lower most springs...
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4159847 |
Seat for a motor vehicle or the like
A spring loaded frame pivotably mounted in the backrest frame is easily unlocked by light pressure applied to a lever disposed at the side of the seat proper whereby the pressure of the seated...
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4156544 |
Vehicle seat having lumbar support adjustment means
A vehicle seat backrest assembly comprises a backrest pan, a rod in front of the pan, and a resilient sponge rubber pad overlying the rod and pan. Adjustable lumbar support means between the...
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4155592 |
Seat back with adjustable lumbar supporter
A plurality of belts or wires are slackly strung between supporters mounted on the upright leg portions of a backrest frame to cross the front of the frame. Electrically driven tensioning means...
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4153293 |
Back rest
A back rest constructed to be supported at its foot on a seat structure and to rest against the back of the seat structure comprising a rigid frame, a normally flat, flexible back support mounted...
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4148522 |
Seat backrest with adjustable lumbar supporter
Herein disclosed is a seat backrest with an adjustable lumbar supporter which comprises a rod transversely crossing frame members of the seatback to be rotatable about the axis thereof relative to...
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4124252 |
Back support with controllable firmness
A back support comprising a pad of resilient, compressible material having a supporting face for engagement by the back of a person, and apparatus for controllably compressing the pad parallel to...
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4040661 |
Vehicle seat with headrest movement responsive to seat back tilting
A tilting, adjustable passenger seat back is provided with an angularly adjustable upper headrest section which has tilting linkage and a hinge connection to the upper part of the seat back such...
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4019777 |
Lumbar support regulating apparatus
A vehicle seat of the type having a seat back with a plurality of transverse serpentine springs therein is provided with a regulating apparatus for adjusting the firmness of the lowermost springs...
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3973797 |
Seat backrest having an adjustable lumbar support
A seat backrest having a contourable upholstered portion supported by a rigid frame includes means to impart a curvature to the upholstered portion to produce a desired supporting contour in the...
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3954245 |
Vehicle seat and support assembly therefor
A vehicle seat support assembly including a fluid spring that supports an upper seat base on a lower floor base at a vertical height corresponding to the adjusted position of an adjustable control...
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3938858 |
Chair with adjustable backrest
A chair having an adjustable backrest wherein the backrest comprises a backplate and a backrest member and with the backplate being pivotally supported relative to the said seat. An adjusting...
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3890000 |
Adjustable lumbar area support for vehicle seatbacks
A horizontally elongated lumbar support member is carried by an adjustably movable mount in position at the lumbar area of a vehicle seatback in thrusting relation to and behind a flexible backrest...
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3813148 |
ADJUSTABLE BACK SUPPORT
Adjustable back support having a resilient cushion with metal stiffener bars therein, the metal stiffener bars are resilient when bent below the elastic limit, and malleable when bent thereabove so...
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3807794 |
LUMBAR SUPPORT MECHANISM
A lumbar support mechanism for a seat backrest having a frame structure covered by a cushion. A laterally extending shaft means supports a pressure member for swinging movement about the shaft...
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3724144 |
REINFORCING STRUCTURE FOR BODIES WITH CURVED LOAD-SUPPORTING SURFACES
A tensionable internal reinforcing structure for a mattress, seat cushion or the like, comprising one or more elongate tension members each traversing a column of mutually abutting pressure...
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3642319 |
DEVICE FOR ANATOMICALLY POSITIONING THE HUMAN BODY AGAINST A SEAT BACK
A roller located within a hollow seat back and adjacent the portion thereof normally engaged by the back of the person using the seat is pivotally mounted for swinging movement to press against and...
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3627379 |
BACKREST FOR A SEAT ESPECIALLY OF A MOTOR VEHICLE
A padded backrest for a seat which has a frame with an upper and a lower crossbar and lateral arms secured to the crossbars, the upper crossbar extending within the upper part of the padding and...
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3540777 |
CHAIR FOR AUTOMOTIVE VEHICLES WITH A DISPLACEABLE BACK
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3403938 |
Fore and aft adjustable headrest
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3378299 |
Automobile seating construction
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3304121 |
Metal chairs
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3301590 |
Play table and bench assembly
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3289222 |
Device for an adjustable bed or chair
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3258259 |
Seat backrest with tensioning means
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3241879 |
Spring seat structure
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3178221 |
Adjustable spring seat
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3137524 |
Seat with auxiliary back rest having single pivot spring assembly
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3106423 |
Back rest having an adjustable shaped element
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3095188 |
Seat back rest with adjustable spring rate
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3093413 |
Chair with double pivot spring assembly
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2991124 |
Back supporting attachment for seat backs
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2843195 |
Self-adjusting back support
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