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Chair system with a suspended balanced inclination seat adjustable by a body weight onlyChair system with a suspended balanced inclination seat adjustable by a body weight only description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20060290183, Chair system with a suspended balanced inclination seat adjustable by a body weight only. Brief Patent Description - Full Patent Description - Patent Application Claims
[0001] The present invention relates to a system of chair with suspended seat (seat) ergonomic and releasing, adjustable, with complete and made safe variable slope, balanced by the only weight of the body without mechanism nor notch. [0002] Certain systems of chair allows a variable slope but authorize only one physical relieving partial of the body, not supporting it in its entirety of the head to the feet or presenting a non ergonomic rigid seat. [0003] Of another systems of chair present a flexible seat but do not have any adjustment length of this seat nor of the position of the head-rest, not being able to adapt precisely to various morphologies of the users. [0004] Some other systems of chair allow a variable slope but authorize only one partial or limited slope, allowing either only the slope of the only file of the seat, maybe that a maximum slope in a position half lengthened, maybe that a slope simultaneously involving a variation and a deformation of the form of the base of the chair and thus limited by the friction of the base on the ground. [0005] Lastly, other systems of chair with variable slope are conditioned by the obligation for the user to leave or to move its sitting position, or to set up additive devices or mechanisms, electric or different, or to develop a particular effort to incline or rectify the seat. [0006] The system according to the present invention as follows supplements and improves the systems of existing chairs with variable slope: [0007] 1) System of Suspended Seat, Ergonomic and Releasing: [0008] By the 2 following processes, the system according to the present invention indeed allows an ergonomic support of the whole of the body of the user, involving a relaxation and a muscular and circulatory relieving real whatever the adopted slope: [0009] 1-a) the 1st process consists of a flexible seat, adapting ergonomically to the shape of the body of the user, sat suspended on the 2 ends of the carriage of seat and supported on the level of the knees, associated a removable and adjustable head-rest and an integrated footrest. [0010] The whole of the body of the user is thus supported in permanence of the head to the feet in all the positions permitted by the seat. This suspended flexible seat distributes and supports completely the weight of the body and allows a muscular relaxation whatever the selected slope. [0011] 1-b) the whole of the body being thus supported permanently, it profits from a proceeded 2nd of rest-foot interdependent of sat in its variations of slope. [0012] The seat suspended on the involving and supporting carriage of seat jointly and completely the body of the user in all the positions (see proceeded 1-a of support of the body), the body can be inclined in maximum reclining position (see proceeded 3 of tilting slope), feet then being simultaneously concerned and being supported by the footrest integrated in the carriage of seat, allowing the circulatory relaxation of the body of the user. [0013] 2) System of Adjustment of Conformation of Seat [0014] By the 2 following processes, the system according to the present invention allows an adjustment of the conformation of seat to adjust it with the morphology of its user. [0015] 2-a) the first process the shortening or the lengthening of this seat according to the size of the user allows. This process is based on a system of adjustment forwards or towards the back of the bar of fastener of sat in its lower part by points of fastener on the carriage of seat, the bar of fastener of sat in its higher part fixed remainder. These symmetrical points of fastener make it possible to regulate the length of seat and its tension by the advance or the retreat of this bar of fixing. One can thus shorten or lengthen the seat according to the size of the user. [0016] 2-b) the second process allows the repositioning of the head-rest on seat according to the size of the user. This process is allowed by the removable and adjustable system of the position in height of this head-rest, by self-adhesive side legs fixing and tightening the cushion on the file part of the carriage of seat. One can thus position exactly the head-rest according to the size of the user. [0017] 3) System of Chair with Complete and Protected Variable Slope [0018] The system according to the present invention consists of a seat (see proceeded 1), suspended on carriage of seat rocking and deformable longitudinally and reversibly on a fixed base, rigid and non deformable, independently of this base and without modification of this one, while having a system of stops of safety fixed on the base, controlling into obstinate the back rocker. [0019] By the 3 following processes, the system according to the present invention allows a variable slope, complete and protected of seat, allowing the user to modify the slope of the seat of the sitting position with the reclining position, with all the possible intermediate positions, without risk of inversion in maximum back position. [0020] 3-a) the 1st process is based on the constitution of the basis of the carriage of seat in a deformable centred semi-parallelepiped made up of 2 semi-quadrilaterals joined between them, equilateral deformable and symmetrical in 2 parallel plans centring the structure of the seat, authorizing the free rotation of the unit seat/carriage of seat suspended on the stable and rigid base: [0021] This deformable semi-parallelepiped is defined by the meeting of the 3 rigid parts composing the carriage of seat, fixed and swivelling between them and on the base, this meeting forming 2 symmetrical equilateral semi-quadrilaterals in the 2 parallel plans, their equilateral shape being defined by the equal distance enters the 4 points tops of the 2 quadrilaterals one by one. [0022] These 2 symmetrical equilateral semi-quadrilaterals in 2 parallel plans each one are fixed and swivelling by rotation on the stable base in 2 fixed points at their 2 higher ends around 2 imaginary parallel enter them fixed axes and perpendicular to the 2 preceding plans, and fixed and swivelling by rotation in 2 points consisted their 2 lower angles around 2 other axes parallel with the precedents. These 2 equilateral semi-quadrilaterals are thus deformable longitudinally in equilateral rhombuses flattened by rotation around their 4 angles in the 2 preceding parallel plans. [0023] the parallelepiped thus made up is deformable longitudinally and symmetrically by pivot on the stable base around its 2 fixed higher axes and its 2 lower axes, these 4 axes being parallel and perpendicular to the 2 parallel plans centring the structure. [0024] 3-b) the proceeded 2nd is consisted the interaction by rotation of the preceding parallelepiped on the remainder of the structure of the carriage of seat (back and footrest), whose constitutive part it is. Continue reading about Chair system with a suspended balanced inclination seat adjustable by a body weight only... Full patent description for Chair system with a suspended balanced inclination seat adjustable by a body weight only Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Chair system with a suspended balanced inclination seat adjustable by a body weight only patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. 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