Abstract:
Das Trägerelement ist für dynamische Belastungen ausgelegt, die z.B. bei Trägern die im Architekturbereich "Textiles Bauen" eingesetzt werden oder bei der Verwendung in Lattenroste für Betten, Sitz- oder Liegemöbel auftreten. Das Trägerelement ist in seiner druckpunktelastischen Federwirkung einstellbar. Zwischen den Endblöcken (4, 5) ist ein Federelement (1) und ein Federspannelement (2) angeordnet, welche mindestens in einer Achsrichtung auslenkbar sind. Das Federspannelement (2) ist mit einstellbarer Vorspannung auf Zug gespannt und hat an seinen Endabschnitten (10, 11) Begrenzungsanschläge (12, 13), die sich jeweils an den sich gegenüberliegenden Innenseiten der Endblöcke (4a, 5a) abstützen.
Abstract:
An improved spinal disc protection and seat impact mitigation system includes apparatus (38) having a density differential based upon the enhanced trauma mitigating effects of a composition of a SEREFLEX ® (220) type of material, or one that combines a viscous fluid and macro- and/or microparticulates to shiled a user's spinal complex and ischial tuberosities (222).
Abstract:
A variable support mechanism includes a plurality of pneumatic bladders and an electronic control system for controlling the inflation and deflation thereof. Each of the bladders communicates through a valve with a common manifold. The operations of the valves are individually controlled by a microprocessor. A pressure sensor communicates with the manifold and generates electrical signals that are representative of the magnitude of the fluid pressure in the manifold to the microprocessor. The microprocessor is also connected to a vent valve that provides selective fluid communication between the manifold and the atmosphere. The microprocessor is further connected to a pressure valve that provides selective fluid communication between the manifold and a pump. Initially, the magnitude of the pressure in each of the bladders is sampled, measured, and stored by the electronic control system. Then, the measured pressure readings from the bladders are compared with respective target values and, in response to that comparison, are designated as being either (1) Too Low, (2) Too High, or (3) Within Limits. The bladders that have been identified as being Too Low are inflated until they have achieved their respective target values, and the bladders that have been identified as being Too High are deflated until they have achieved their respective target values. Lastly, the electronic control system is placed an inactive mode, where no action occurs for a predetermined length of time. When the predetermined length of time expires, the algorithm branches back to the first routine discussed above, wherein this cycle is repeated.
Abstract:
A vehicle seat assembly includes a seat backframe having a plurality of attachment holes formed therethrough. A trim cover includes an attachment strip with a plurality of trim attachment apertures therethrough aligned with the attachment holes in the backframe. A plurality of Christmas-tree fasteners cooperate with the attachment holes and with the trim attachment apertures for securing the trim cover to the backframe. A lateral and lumbar support bladder subassembly (74) is secured to the backframe by the Christmas-tree fasteners. The subassembly includes a backing plate (76) with first and second lateral support bladders (78, 80) and first and second lumbar support bladders (82, 84) secured to the backing plate (76). A method of assembling a seat therefor includes installing the lateral and lumbar support bladder subassembly as a single piece to the backframe using the Christmas-tree fastener for attachment.
Abstract:
A self-inflating seat or modular seat insert (1) is disclosed as having a resilient core wholly surrounded by and bonded to an airtight outer skin, and a valve arrangement (2) that selectively permits air ingress to and egress from the internal space defined by the outer skin. The valve arrangement (2) is constructed to permit passive air ingress when ambient air pressure is greater than the internal air pressure in the space defined by the outer skin, and prevent air egress from the spaced defined by the outer skin when the internal air pressure is in excess of ambient air pressure. A user operated control (4) temporarily disables the valve arrangement (2), thereby allowing for deflation of the seat or seat insert when internal air pressure exceeds ambient air pressure, a feature of the valve assembly (2) permits automatic self-deflation should the internal pressure exceed a predetermined value relative to ambient pressure. Another feature is directed to a method of integrating the insert (1) into a seat back to permit user selection of the position of the insert (1).
Abstract:
A chair comprising a seat (1) and a back support (2) accommodating supporting members for a person seated in the chair, the supporting effect of said members being variable, the right and the left halves of the seat as well as of the back support having individually at least one supporting member (8, 9, 10, 11), the element (8, 9) or the elements in either half of the seat (1) communicating effectively with the member (10, 11) or the members in the opposite half of the back support (2), and the members in the two halves of the seat and the back support, respectively, are effectively separated from each other.
Abstract:
An air support used for a chair, and more particularly to an air support using an air bag having therein suspension cloths improved in various respects and also relates to the technical development for installing said air support in a chair utilizing the same, whereby the fit of the chair can be improved.
Abstract:
A body support system in the form of a cushion arranged to provide varying degrees of support to different parts of the body comprises a plurality of resilient fluid-tight compartments (31 - 36) interconnected by a system of fluid conduits (38, 43), and shut-off means (39) which can be engaged to isolate at least some of the compartments. In use, the shut-off means (39) is opened, the fluid-tight compartments (31 - 36) are inflated with a fluid medium, and the body is rested thereon to cause a varying distribution of fluid between the compartments, whereupon the shut-off means (39) is closed to retain the compartments (31 - 36) in varying degrees of inflation corresponding to the desired support required. The compartments (31 - 36) and the fluid conduits (38) may be defined between two superposed sheets of resilient fluid-tight material (30, 40) to define a unitary panel structure. The panel may include an additional compartment (37) providing a fluid reservoir, and the assembly may be coupled to a fluid pump (44).
Abstract:
A thoracic support for a seat back of a seat is provided. The thoracic support structure is pivotally attached to the seat back and pivots between a first position and a second position. In the second position the support structure supports at least a portion of the thoracic region of the user's spine. An actuator disposed between a support surface and the support structure pivots the support structure from the first position to the second position upon actuation.