Abstract:
A seat cushion system that reduces the vertical impact to the seat occupant within the space and cost constraints of existing seat support structures. In one embodiment, the seat cushion employs a series of layers (101, 102, 103, 106) of varying density and lateral displacement foams with a rigid or semi-rigid material (104) within the cushion. Each layer of foam can change in both density and lateral displacement depending on the volumetric space available. Another embodiment demonstrates how only two layers (132, 133) of differing densities and lateral displacement can greatly reduce the impact force from vertical thrust.
Abstract:
A chair having a back (2), an adjustable seat (3), and adjustable supporting devices (5, 6) connected to the back. The back encloses a frame (16) which supports a cushion of synthetic foam (30). The frame (16) is embedded in the synthetic foam (30), which has been injected all around the frame. The back (2) of this chair is firm and yet is easy to produce.
Abstract:
A seat incorporating insert(s) intermediate its upper and lower surfaces. A seat insert for the support of the users buttocks conforms to the user's body, has "rebound7' properties, and areas adapted to underlie the perineum and/or ischiums of a user softer than the rest of the seat insert. Alternatively, a perineal insert and/or ischium inserts may be used without the seat insert described. Finally, a heatable insert can be used in conjunction with or in the absence of said seat inserts to provide heat for the comfort of a seat user. In all cases, the aforesaid inserts are preferably completely encapsulated and enclosed by the foam materials making up the seat, which can be accomplished by molding the seat around the insert(s), creating a seat with various internal density zones, adjustable heat, and enhanced abilities to conform to the user's body, while limiting pressure on perineum and/or ischiums.
Abstract:
Sitz mit einem Zentralbereich und einem sich nach außen an diesen anschließenden Randbereich, mit einer Federung, die eine vom Zentralbereich nach außen zum Randbereich hin zunehmende Nachgiebigkeit aufweist. Der Sitz ist mit einem Untergestell gegenüber einer senkrechten Ebene neigbar an einem Fußteil aufgenommen.
Abstract:
Process for making a seat element by means of a lining (1), comprising a covering layer of plastic material (1), a continuous sheet of metal springs (5) and an intermediary linking layer (3), said springs (5) coming out of one side of said intermediary layer (3), process according to which the following operations are carried out: the cutting out of said lining; the deposition, at a small distance from the peripheral edge (15) of the lining (1) of a plastic bead (16) having elasticity properties and adhering to the intermediary layer (3), by coating and exceeding the sheet portion of springs (5) coming out of said intermediary layer (3); the setting in place of the peripheral edge (15) in a peripheral mould (18), the sealing between the lining and the mould (18) being provided by the contact of the wall of the mould (18) to the sealing bead (16); and the casting or injection of plastic material inside the mould (18).
Abstract:
A manufacturing method of a seat element (1; 101) is disclosed, comprising a body (2) obtained from moulding polyolefin plastic materials of expandable and reticulable type, and a template (3; 103) made of rigid material, which is coupled with the body (2) when it is still hot, in such a way to control the shrinking of the material of the body during cooling.
Abstract:
A foam moulding is proposed with an anchoring element buried in the foam and serving to secure the moulding to other components, in particular a covering. The anchoring element is a thread (2) of organic material running parallel to the surface of the bolster.