| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 81 | Waterblown foam base | US975848 | 1992-11-13 | US5317773A | 1994-06-07 | Robert H. Graebe |
| A waterblown urethane foam base having a flat seat portion and a raised front portion with angularly directed valleys and a raised pommel. The area beneath the front portion is made more flexible and reduced in weight and is defined by a series of hollowed out areas separated by ribs which support the top surface of the front portion along with the front and side walls of the front portion. | ||||||
| 82 | Seat cushion | US823536 | 1992-01-21 | US5294181A | 1994-03-15 | Robert J. Rose; Bruce Sleboda |
| A seat cushion is described which has particular utility as a wheelchair seat cushion. The seat cushion includes a base layer of polyurethane foam with a front edge of greater height than the rear edge so as to define a downwardly sloping upper surface. The base layer supports an essentially constant thickness intermediate layer which is less firm than the base layer. The intermediate layer has a pair of laterally spaced recesses formed in the forward end of the intermediate layer which curve both upwardly and inwardly from the front edge of the intermediate layer. A top layer is secured to the intermediate layer and has a constant thickness. The top layer is formed of foam material which is less firm (e.g., a lower 65% IFD value) than the foam forming the intermediate layer. The intermediate layer is formed of a foam which is less firm (e.g., a lower 65% IFD value) than the material forming the base layer. The upper surface of the top layer defines a pair of depressions in the areas where the top layer is received within the recesses of the intermediate layer. The top layer includes a convoluted upper surface and in one embodiment the top layer includes a similarly convoluted extension which provides a backrest. | ||||||
| 83 | Seat cushion for alleviation of perineal and rectal discomfort | US840008 | 1992-02-21 | US5286089A | 1994-02-15 | Stephen L. Goldman |
| Disclosed is a unitary foam seat cushion (10) that is configured and arranged to eliminate contact pressure on the rectal, perineal and genital regions of a person seated on the seat cushion without subjecting the perineal region to substantial stress or tension. The seat cushion includes a base (12) and two upwardly projecting elongate support members (16 and 18). The support members are of an arcuate (upwardly extending convex) cross-sectional geometry and are positioned in parallel spaced apart relationship for support of the ischia and thighs. Located between the support members is a channel (14) that extends downwardly into the seat cushion to form a void that prevents exertion of contact pressure on the rectal, perineal and genital areas. The portions (30 and 32) of the support members nearest the knees of a seated person taper downwardly for improved weight distribution and comfort of a person seated on the seat cushion. | ||||||
| 84 | Sealed composite cushion having multiple indentation force deflection zones | US977136 | 1992-11-16 | US5282286A | 1994-02-01 | Michael MacLeish |
| A sealable, composite cushion is disclosed having a plurality of resilient support member horizontally disposed to one another and surrounded by a fluid impervious membrane. Each resilient support member has a known Indentation Force Deflection (IFD) value and is located in the cushion based upon medical criteria to provide zones of varying support. In an embodiment, the resilient members are bonded to the membrane and act as tension members to maintain the cushion's form while under a load. As a result, the cushion resists further deflection not only by the resilient members' resistance to compression, but also by an increased internal pressure. Accordingly, the cushion of the present invention is a composite of fluid flotation and compression resistance. A valve may be incorporated into the cushion to regulate the fluid floatation characteristics of the cushion or to assist in its transportation. In another embodiment, the resilient support members are not bonded to an upper membrane portion, thereby decreasing shear forces acting upon the resilient members when the cushion is under load. Further, excess membrane may be located at the cushion periphery. When subject to a load, this excess membrane material can migrate to the upper portion of the cushion, thereby decreasing undesirable peripheral distortion of the cushion. | ||||||
| 85 | Seat cushion | US525955 | 1990-05-21 | US5137333A | 1992-08-11 | Edward K. Chee |
| A seat cushion includes a rigid base and at least one internal rear wedge disposed on or formed on the upper surface of the base and having a first upper face that slants downward toward the front of the base. It also includes at least one internal front wedge formed on the upper surface of the base and having a second upper face that slants downward toward the rear of the base. It further includes an external cushion, the internal wedges and base being fixed within the external cushion. The cushion has a rocker on the lower surface of the base to allow its angle of tilt to be adjusted by the user. | ||||||
| 86 | Mat for a chair | US500043 | 1990-03-27 | US5026585A | 1991-06-25 | Hiroyuki Funatogawa |
| A mat for a chair corresponding in size to the seat of an ordinary chair has a top surface which is inclined forwardly and downwardly from its rear edge adapted for positioning normally at the bottom of the back of the chair, and a bottom surface adapted for resting normally on the seat of the chair. The top and bottom surfaces of the mat have an angle between 5.degree. and 8.degree. therebetween. | ||||||
| 87 | Cushion | US420272 | 1989-10-12 | US4989284A | 1991-02-05 | Paul B. Gamm |
| A cushion having a series of pods connected in a matrix configuration. The pods are deformable in response to a person seated on the cushion. The pods cooperate to define primary airflow channels through the cushion from side edge to side edge, and from front edge to back edge, thereof. In one feature, a series of cruciform configured recesses are defined in the pods' top surfaces. These recesses cooperate to define secondary airflow channels through the cushion from side edge to side edge, and from front edge to back edge, thereof. In another feature, a series of first pods are located in those cushion areas which underlie and support a person's ischial and coccyx bones, and a series of second pods located in those cushion areas which do not underlie and support a person's ischial and coccyx bones. The first pods have a relatively thin wall covering a foamed interior and are of a relatively greater height to provide relatively soft pods. The second pods have a relatively thick wall covering a foamed interior and are of a relatively lesser height to form relatively firm pods. These difference in load bearing characteristics between the first and second pods aids in minimizing the pressure on a user's ischial and coccyx bones when seated on the cushion. | ||||||
| 88 | Seating device | US188916 | 1988-05-02 | US4824174A | 1989-04-25 | Richard A. Dunn, Sr. |
| A seat device for alleviating backache symptoms by a laminated structure of rigid material covered by resilient material. The rigid material may be preferably wood or plastic and the resilient lamination may be from rubber. The shape includes a spacing portion from the back portion to a point considerably short of the front rim. The spacing portion is shaped on a T with an enlargement section to accommodate the genital area of a seated person. The back portion is designed to alleviate stress and pain on the coccyx of the seated person which is responsible for major backache symptoms. The enlargement area allows for circulation to the genitals and anus for proper ventilation of the genitals to avoid excessive persiration in these areas. | ||||||
| 89 | Seat assembly for motor vehicle | US895949 | 1986-08-13 | US4722550A | 1988-02-02 | Naohiro Imaoka; Hitoshi Nakashima |
| A seat assembly for use in a motor vehicle which includes a seat accommodated in the motor vehicle, hardness changing members disposed within the seat and capable of changing a hardness of the seat, running conditions detecting sensors for detecting running conditions of the motor vehicle, an actuating device for actuating the hardness changing members and a controller for driving the actuating device in accordance with running conditions of the motor vehicle by receiving outputs from the running conditions detecting sensors. | ||||||
| 90 | Dual crowned hemorrhoid support seat cushion | US803483 | 1985-12-02 | US4709431A | 1987-12-01 | Donald H. Shaktman |
| A hemorrhoid relief cushion is constructed with aligned, elongated, convexly elevated portions of different size to reduce inventory requirements by half and also reduce the number of fabrication molds needed for making a complete inventory of cushion sizes in half. | ||||||
| 91 | Basic lotus posture comfort seat | US739530 | 1985-05-31 | US4673216A | 1987-06-16 | Jaroslaw G. Alfer |
| A seat for persons using the cross-legged "lotus" sitting position, characterized by a substantially horseshoe-shaped support with top and bottom surfaces and with a broad central portion for supporting the buttocks, and comprised of a pair of bilaterally symetrical and divergent sections with piers extending forwardly establishing a space therebetween to lower and to position both feet and folded lower legs with the buttocks raised for comfort; a unit to be used at floor level or raised by and/or incorporated in a chair or the like. | ||||||
| 92 | Hemorrhoid seat cushion | US736291 | 1985-05-20 | US4660238A | 1987-04-28 | Eric C. Jay |
| A hemorrhoid supporting pad, preferably associated with a seat cushion assembly, is formed from a flexible envelope partially filled with a fluid. The pad is positioned beneath a seated person. Portions of the envelope extend beneath the ischial tuberosities of the seated person, which causes the fluid in the envelope to flow into the central region of the envelope, where the fluid is forced upwardly beneath the anus to support the hemorrhoid. | ||||||
| 93 | Orthotic sling seat cushion | US689456 | 1985-01-07 | US4646374A | 1987-03-03 | Alice Shafer |
| A seating orthotic cushion comprised of an elongated wedge of resiliently deformable material having a substantially planar top surface, a front surface meeting the top surface, and a bottom surface comprising a plurality of planar portions extending side-by-side from the front of the cushion to the back, the portions meeting in such a way that the bottom of the cushion slopes progressively upward toward the top of the cushion on either side of a line substantially bisecting the cushion between its sides. This seating orthotic cushion preferably includes a waterproof cover having a high coefficient of friction, and filled with an organic foam material. | ||||||
| 94 | Adjustable seat cushion | US636431 | 1984-07-31 | US4635622A | 1987-01-13 | Ghislain R. Berube |
| The invention relates to an adjustable seat or cushion which can be used by a chiropractor to bring relief to sufferers of low back pain or sacroiliac problems. The seat cushion includes a base and a pair of side-by-side cushion portions. An adjusting mechanism is provided in one cushion portion so that the elevation of that cushion portion relative to the base can be adjusted. In this manner a differential loading can be placed on the spine of a patient, by raising one hip relative to the other, so as to relieve pressure in the vertebrae and thereby reduce pain. | ||||||
| 95 | Vehicle seat | US594313 | 1984-03-28 | US4589695A | 1986-05-20 | Hiroyuki Isono |
| A vehicle seat is disclosed which includes air bags therein in order to form support sections of a predetermined configuration on the surface of the seat. Within a seat pad in the seat, in particular, in its interior portions which correspond to locations where said support sections are formed, there are formed slits respectively such that these slits extend substantially parallel with the surface configurations of the respective support sections. Also, the air bags are inserted into and contained within these slits, respectively. The air bags and thus the support sections can be suitably expanded and compressed by means of an adjustment device. | ||||||
| 96 | Neutral body posture chair | US541093 | 1983-10-12 | US4552404A | 1985-11-12 | Jerome J. Congleton |
| A neutral body posture chair to support a user in a neutral body posture position defined as the natural position a body assumes in weightlessness where the muscle, tendon, and ligament systems acting over the joints are in total balance wherein the trunk of the body forms an angle of approximately 127 degrees with respect to the upper legs and the upper legs form an angle of approximately 127 degrees with the lower legs. The chair includes a seat formed into a bowl at the pelvic area, leg troughs support the upper legs and raised sides to maintain the user in the selected position. The seat further includes an elevated pommel which supports the pubis bone of the user to maintain the user in the desired neutral body posture angle without sliding out of the seat. The chair assembly includes a back rest, footrests, and a suitable base. The chair includes means for adjusting the vertical height of the seat, the tilt angle of the seat, the angle of the backrest, and vertical height of the backrest. | ||||||
| 97 | Chair with a back for reclining | US499878 | 1983-06-01 | US4534590A | 1985-08-13 | Yukio Yamamura; Jingo Nakayama; Atsunobu Ikeda; Takashi Kawamoto |
| The present invention is directed toward an orthopedically improved chair that is designed so as to prevent pain in the waist or back of the user. In one embodiment of the present invention, the chair is adaptable for use as either a squat chair or a conventional type chair. The chair of this embodiment is characterized by a seat that is freely forwardly downwardly inclinable to a point about 20.degree. below the horizontal; and a forwardly protruding cross-bar portion that provides support for the lumbar region of the spine. In addition, this chair can be adapted for use as a conventional type chair by merely moving the downwardly inclinable seat into its vertical position and then using the base of the chair as a seat. | ||||||
| 98 | Foam seat and back cushions | US303052 | 1981-09-17 | US4522447A | 1985-06-11 | William F. Snyder; Nelson P. Snyder |
| Disclosed is a seat cushion constructed of cellular elastic material wherein its design provides more uniform distribution of supportive forces exerted by the cushion over a larger area of the anatomical portions of a person seated thereon for minimizing squeezing and restriction of arteries and nerves located in the anatomical portions of a person seated on the cushion. The cellular elastic material of the seat cushion is divided into segments having different moduli of elasticity. The modulus of elasticity of each segment is inversely proportional to the pressure exerted on such segment by the anatomical portion of a person seated on the cushion. Also disclosed is a back cushion of similar design. | ||||||
| 99 | Support member | US231829 | 1981-02-05 | US4493877A | 1985-01-15 | John S. Burnett |
| A support device, suitable for the physically handicapped, and also for packaging delicate objects, consists of an airtight flexible bag filled with a granular material coated with an adhesive. A non-return valve is provided to allow a partial vacuum to be established within the bag. In use, the bag when non-evacuated of air, is pushed against a body to be supported so that the granular material flows and assumes a shape closely conforming to the body. Air is then evacuated from the bag and as a result the granular material is compressed into a rigid mass in the conformed shape. The mass is then made permanently rigid by activating the adhesive coating, for example with microwave radiation. | ||||||
| 100 | Vehicle seat having an adjustable femur supporter | US272340 | 1981-06-10 | US4455047A | 1984-06-19 | Hiroo Watanabe |
| In order to concentrate the creases, which are inevitably produced at the front sheet member of seat proper when the front section of the seat proper takes its lowermost position by the function of the adjustable femur supporter, at an inconspicuous portion of the front sheet member, two elongate elastic members constructed of, for example, a rubber material are attached to the sheet member in a manner to be kept expanded even when the front section of the seat proper takes the lowermost position. Each elongate elastic member passes through two slots formed in the sheet member so that a portion of the elongate elastic member is located at a side opposite to another side where a major portion of elongate elastic member is located. | ||||||
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