Class / Patent application number | Description | Number of patent applications / Date published |
297284700 | Rectilinear vertical adjustment | 23 |
20090115235 | Piece of Seating Furniture, in Particular Office Chair - A piece of seating furniture, in particular an office chair, has a backrest with a lumbar support. In order to improve the comfort and ease of use of such a piece of seating furniture, the lumbar support is disposed in a height-adjustable manner on a flexible guide strip. | 05-07-2009 |
20090134680 | MOTOR VEHICLE SEAT BACK STRUCTURE FOR A MOTOR VEHICLE SEAT - A motor vehicle seat back structure comprising a backrest support frame which consists of a surface turned towards the seat user's back, a lordosis support which is arranged on the front part of the backrest support frame for supporting the user's back and an adjusting device for vertically adjusting the lordosis support position with respect to the extension plane of said backrest support frame. The adjusting device comprises at least one adjusting element operably connected to the lordosis support and at least one sliding element which is displaceable with respect to said adjusting element and interacts therewith in such a way that when the sliding element moves, the adjusting element is displaced with a directional component perpendicularly to the displacement direction of the sliding element and performs an action on said lordosis support in the direction. | 05-28-2009 |
20100066143 | BACKREST STRUCTURE FOR A MOTOR VEHICLE SEAT - A backrest structure for a motor vehicle seat is provided. The backrest structure having a rest frame forming the supporting structure of the backrest, which rest frame comprises at least two longitudinal struts running in the longitudinal direction of the rest, a lumbar support arranged on the front side of the rest frame for supporting the back region of a motor vehicle occupant having a transverse traverse being adjustable along the longitudinal struts by means of a height adjusting device, to which a support device is hinged and is adjustable by means of a depth adjusting device substantially perpendicular to the transverse traverse. A retaining device supporting the transverse traverse and extending substantially in the longitudinal direction of the rest and receiving the height adjusting device. | 03-18-2010 |
20100078980 | SEAT LUMBAR ACTUATOR - An actuator assembly for adjusting first and second comfort features of a seat assembly includes a housing and a shaft mounted for linear and rotational movement in the housing. A main gear is mounted on the shaft and mounted for rotational movement in the housing. The shaft and main gear are linearly movable between first and second positions relative to the housing. A first cable assembly includes a first pinion gear mounted for rotational movement in the housing. A first rack is mounted for linear movement in the housing. The first rack engages with the first pinion gear such that rotation of the first pinion gear linearly moves the first rack. A first cable is connected to the first rack. The first cable is adapted to be connected to a first comfort feature. A second cable assembly includes a second pinion gear mounted for rotational movement in the housing. A second rack is mounted for linear movement in the housing. The second rack engages with the second pinion gear such that rotation of the second pinion gear linearly moves the first rack. A second cable is connected to the first rack. The cable is adapted to be connected to a second comfort feature. When the main gear is in the first position, the main gear is engaged with the first pinion gear. When the main gear is in the second position, the main gear is engaged with the second pinion gear. | 04-01-2010 |
20100156158 | LUMBAR SUPPORT SYSTEM FOR FURNITURE MEMBER - An occupant lumbar support system includes a flexible lumbar support member having homogenously connected first and second connection braces. The lumbar support member is deflectable to a plurality of lumbar support positions. A rigid displacement rod is connected at a first rod end to one of the connection braces. A lumbar member actuation mechanism has a rotatable first actuation arm receiving a second displacement rod end. The actuation member translates the displacement rod causing the first and second connection braces to move toward each other, deflecting the lumbar support member to any of the lumbar support positions. A cable is connected at a first end to an actuation mechanism second actuation arm and at a second end to a displaceable lever manually movable to co-rotate the first and second actuation arms and translate the displacement rod. | 06-24-2010 |
20110101749 | LOWER-BACK SUPPORTING STRUCTURE FOR A BED OR A CHAIR - A lower-back supporting structure for a bed or a chair includes a sliding base, two scissor lifts, a driver and a supporting member. The sliding base has a pair of slide slots and a pair of rotating pins, a securing portion between the two rotating pins, and a plurality of the locking apertures. Two scissor lifts both have an X-shaped frame having a pivot. A driver has a positioning end, an extendable rod, a through hole and a sliding rod placed through the slide slot, the through hole and the first front cotter holes. A supporting member has a pair of slide tracks and a pair of rotating holes. The driver drives the sliding rod along the slide slot of the sliding base to shorten the extendable rod, the scissor lifts rotate around the pivots to lift such that the supporting member is pushed away from the sliding base. | 05-05-2011 |
20110298260 | Resilient Lower-Back Supporting Device Capable of Vertical Adjustment Along with Backrest of Chair - A resilient lower-back supporting device capable of vertical adjustment along with a backrest of a chair includes a resilient supporting unit pivotally connected between a lower end of the height-adjustable backrest and a supporting element. Configured for resilient extension and retraction, the resilient supporting unit includes an outer supporting rod and an inner supporting rod inserted therein. The two supporting rods are pulled toward each other by a spring provided therebetween. Besides, a spring is provided at an outer end of each supporting rod to bias the resilient supporting unit and the backrest toward a predetermined direction. With the backrest being vertically adjustable, and with the resilient support provided by a lower-back supporting portion at the lower end of the backrest, people of different heights are ergonomically supported especially on the lower back while sitting in the chair and are protected from back pain attributable to a prolonged sitting posture. | 12-08-2011 |
20120146376 | CHAIR HAVING AN ADJUSTABLE BACKREST FOR SPINAL PROTECTION - The present invention relates to a chair having an adjustable backrest for spinal protection in that an inside of a backrest structure is provided with an auxiliary backrest for protecting a lumbar vertebrae, and a rack and pinion structure is employed in the backrest and the auxiliary backrest in such a manner that the backrest slides vertically and the auxiliary backrest also slides vertically by the same ratio such that the backrest and the auxiliary backrest can be adjusted appropriately and used flexibly to match the sitting height of the person sitting on the seat, thereby making it possible to provide effective protection to the spinal joints of the waist, back and neck of the user. | 06-14-2012 |
20120256456 | VEHICLE SEAT - The technical result of the claimed utility model consists in the maintenance and retention of the natural physiological curvatures of a person's spine while said person remains in the chair. The technical result is achieved in a vehicle chair that comprises a seat having a backrest and headrest, the backrest being provided with a pad capable of moving vertically and horizontally at the level of the lumbar part of the person's spine, the headrest being capable of varying its vertical position and its angle of inclination to the horizontal and being provided with a pad in the area of the neck part of the headrest, said headrest pad being movable vertically; the backrest being capable of varying its angle of inclination to the horizontal; and the pads having a constant or variable volume. | 10-11-2012 |
20120306247 | Lumbar Support for a Chair - A lumbar support for a chair includes a member having a first portion separated from a second portion via a slit formed in the member and a slider mechanism. The slider mechanism has a slider that is moveable from a first position to a second position. The first and second portions of the member are attached to each other when the slider is at the second position via the slider. The first and second portions of the member are unattached at the second position when the slider is moved from the second position to the first position. | 12-06-2012 |
20140077549 | Chair Assembly - A chair assembly includes a base structure, a seat support structure movably coupled to the base structure, an upwardly-extending back support structure movably coupled to the base structure, wherein the back support structure is adapted to move between an upright and reclined positions, wherein the back support structure is operably coupled to the seat support structure, a flexible shell structure defining a forwardly-facing surface forming a lumbar support, wherein the flexible shell is movably coupled to the seat support structure, and a resilient member generating a variable compressive force acting on the flexible shell structure in a manner that tends to cause a curvature of the back support structure to increase, and wherein the compressive force decreases as the back support structure moves from the upright position to the reclined position. | 03-20-2014 |
20140103688 | FORWARD SLIDING RECLINING CHAIR - An office chair includes a seat and a backrest that are pivotally connected together at a pivot axis such that the backrest can pivot with respect to the seat between an upright position and a reclining position. The seat is mounted on a base such that the seat can move with respect to a base, and the seat includes front and rear portions that can pivot with respect to one another. When the backrest is pivoted from the upright position to the reclining position, both of the seat and the pivot axis move forward with respect to said base, and the seat front portion flexes with respect to the seat rear portion such that the angle between said upward faces of said seat front portion and the seat rear portion increases. The backrest may also include an upper portion and a lower portion that can pivot with respect to one another. When the backrest is moved to the recline position, the angle between the forward faces of the upper and lower backrest portions decreases. | 04-17-2014 |
20140125103 | LUMBAR SUPPORT DEVICE - A lumbar support device includes: a seat back frame; a warped plate supported by the seat back frame to press a back of a seated person; and a reinforcing plate that reinforces the warped plate, the reinforcing plate being able to curve together with the warped plate. The warped plate includes a holder that holds a first end portion of the reinforcing plate, and a non-interference portion that allows movement of the reinforcing plate relative to the warped plate. | 05-08-2014 |
20140312668 | CHAIR - Provided is a chair which comprises a lumbar support that is capable of comfortably supporting the lumbar region and that is capable of providing stable support with a side frame pole of a back frame. This invention comprises: a lumbar support main body ( | 10-23-2014 |
20140346827 | LUMBAR SUPPORT APPARATUS - A lumbar support apparatus includes a curved plate which is provided to a seat-back frame so that the upper part of the curved plate is rotatable in the vertical direction, and which is deformable in the direction in which a seated person's lumbar spine is pressed; a curved-plate deformation-amount adjustment unit including a threaded rod having an external thread foamed on the peripheral surface thereof, and a nut member that is threadedly engaged with the external thread of the threaded rod and is attached to the lower part of the curved plate so as to be prohibited from rotating about a center axis and so as to be movable in the vertical direction; and a drive unit for rotatingly driving the threaded rod. | 11-27-2014 |
20150015042 | APPARATUS AND SYSTEM FOR DYNAMICALLY CORRECTING POSTURE - An orthopedic device for improving posture while sitting, having a foundation member including a front portion for upper legs and a bowl portion for lower pelvic area. The bowl portion has a central portion and an upwardly inclined lateral portion. The lateral portion and the front portion collectively surround the central portion. A channel attachment is connected with one or more pelvic crest portions. The channel attachment portion connects over a concave recessed portion. The central portion has plural regions of varying flexibility and the lateral portion has plural regions of varying flexibility. | 01-15-2015 |
20150091349 | Lumbar Support of Car Seat - A lumbar support of a car seat according to the present invention includes: a support plate to support user's back and made of elastic material; a support frame to which the support plate is rotatably engaged; a slider member mounted on the support frame in a movable manner in a vertical direction; a vertically driving means to move the slider member on the support frame; a biasing force control means including an upper member moving together with the slider member, a lower member disposed below the upper member, a biasing member connecting the upper and lower members to each other and having a controllable biasing force acting on the support plate depending on a distance between the upper and lower members, and an actuating means to control the distance between the upper member and the lower member. | 04-02-2015 |
20150115679 | VARIABLE LUMBAR SUPPORT ASSEMBLY - A variable lumbar support including a frame and a support extending between an upper end and a lower end wherein the support bracket includes a first longitudinal direction. A pad having a first surface is provided within the assembly. The first surface of the pad contacts the lumbar portion of the seat assembly. The pad is positioned between the lumbar portion and the seat back cushion. Upon a sliding movement of the lumbar member along the support while in contact with the pad, a curved surface of the pad is displaced in the first longitudinal direction and a second direction normal to the first direction. As the lumbar member contacts the curved areas of the pad, the foam is displaced and pushed towards (a bulge) the seat back cushion so that the user of the vehicle seat feels a fore-and-aft movement of the lumbar member. | 04-30-2015 |
20150296989 | FLEX LUMBAR SUPPORT - A lumbar support of a chair includes a crossbar member and a first flex member. The crossbar member has a first end and a second end. The first flex member includes a first front portion coupled to the first end, a first back portion coupled to the chair, and a first web portion interconnecting the first front portion and the first back portion. The crossbar member supports a back of a user and the first flex member flexes upon engagement of the crossbar member by the back of the user. | 10-22-2015 |
20160052436 | LUMBER SUPPORT APPARATUS FOR VEHICLE - A lumber support apparatus may include a base plate installed in a fixed wire installed in seatback frame to be elevated, nut units having left and right nuts coupled to upper portions of opposite sides of the base plate to be slid leftwards and rightwards, respectively, link units having left and right links located outside the nut units to be spaced apart from each other and ends of which are hinge-coupled to upper portions of opposite sides of the base plate, respectively, arm units having left and right arms leftward/rightward movements of which are restricted by the link units and raised forwards and rearwards when the nut units are slid, and a screw rod having a screw structure passing the left and right nuts leftwards and rightwards to be screw-coupled to the left nut and right units, for moving the left and right nuts in opposite directions during rotation thereof. | 02-25-2016 |
20160135603 | CHAIR - A chair includes a seat, a backrest and a back frame having a rigid structure and arranged behind the backrest with an interval in between. The backrest is attached to the back frame by a first support device arranged at a height position close to an upper end of the backrest and by a second support device arranged at a position lower than the first support device and higher than a seat surface. The first support device is attached to a part close to a right-left middle part of the upper end part in the backrest. The second support device is attached to a left end part and a right end part of the backrest. | 05-19-2016 |
20160250957 | 4-WAY LUMBAR SUPPORT | 09-01-2016 |
20170231396 | BACK SUPPORT FOR A CHAIR | 08-17-2017 |