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| Number | Title | Issue Date |
| 8029061 | Link mechanism for a chair and a chair There is provided a link mechanism for a chair that is a link mechanism that is used at a chair, the link mechanism for a chair having: a first link whose one end is connected to a bottom surface of a link that supports a seat surface portion of the chair; a second ... | 10/04/2011 |
| 8016354 | Vehicle seat assembly with stand up position A seat assembly has a seat cushion that is pivotally mountable to a vehicle floor. The seat cushion is selectively movable between an operative condition and a standup condition. A seat back is pivotally mounted to the seat cushion and is selectively movably angular... | 09/13/2011 |
| 7971936 | Link mechanism for a chair and a chair There is provided a link mechanism for a chair that is a link mechanism that is used at a chair, the link mechanism for a chair having: a first link whose one end is connected to a bottom surface of a link that supports a seat surface portion of the chair; a second ... | 07/05/2011 |
| 7484803 | Chair, especially and office or work chair The invention relates to a chair, especially an office or work chair or similar, whereon a back-rest part (15) can be placed in an inclined position from an initial or rest position via a first axis of rotation (12). A seating part (14) performs... | 02/03/2009 |
| 7441839 | Reclinable chair A chair includes a supporting frame and a seat portion which is foldable about a transverse fold to define a rearward portion behind the transverse fold and a forward portion, forward of the transverse fold. The seat portion is supported above the supporting frame b... | 10/28/2008 |
| 7425037 | Tilt chair and methods for the use thereof A tiltable chair including a base, a fulcrum member having a curved support surface, a back support pivotally connected to the base at a pivot axis and pivotable between at least an upright position and a rearward tilt position, and at least one leaf spring having f... | 09/16/2008 |
| 7410215 | Articulating chair An articulating massaging chair is provided that includes a support frame; a seat pivotally connected to the support frame by a seat pivot; and a backrest pivotally connected to the support frame by a backrest pivot. ... | 08/12/2008 |
| 7398989 | Stand-up wheelchair with gearing down of the stand-up operation A stand-up type wheelchair for handicapped and sick people comprises a chassis (2) supporting an articulated structure (12) which includes a seat, a foot-rest, a chair-back, and two symmetrical lateral articulated systems. Each system includes ... | 07/15/2008 |
| 7293825 | Multi-position chair A multi-position chair may be positioned into multiple positions including one or more sitting positions at different heights, one or more leaning positions at different angles, and one or more storage positions. The multi-position chair may include a seat, a back a... | 11/13/2007 |
| 7273253 | Chair ride mechanism with tension assembly A task chair, including a backrest assembly and a seat assembly pivotally coupled both to one another and to side portions of a fixed yoke member for synchronized movement, in which the seat of the seat assembly moves upwardly and forwardly concurrently with recline... | 09/25/2007 |
| 7267405 | Chair with a synchronous coordinating system for the chair back A chair with a synchronous coordinating system for the chair back includes a base, a chair cushion and a chair back. The base and the chair cushion are connected fixedly or formed integrally, and the chair back is articulated with the base which is articulated with ... | 09/11/2007 |
| 7234775 | Dynamically balanced seat assembly having independently and arcuately movable seat and backrest and method A seat assembly (21) including a seat (22), a backrest (23) and a mounting assembly (24) mounting the seat (22) in a near horizontal orientation for movement along an upwardly concaved arcuate seat path having a center of curvature... | 06/26/2007 |
| 7219960 | Lifting chair with moving arms A lifting chair, having a seat which is pivoted upward, being hinged along its front edge to help lift an individual who has trouble rising from an ordinary chair, also has arms which move upward during this pivoting process. Similarly, the seat and arms are moved d... | 05/22/2007 |
| 7188904 | Lead screw and gear box for use with a motorized adjustable seat back and exhibiting a nut and nylon spacer bushing in abutting engagement with a slotted catcher bracket for preventing end-play of the lead screw as well as buzz, squeak and rattle in tensile and compressive loading situations A powered seat assembly for reducing end-play of an associated lead screw interconnecting a pivotally secured seat back to a motor gear box. A motor actuates the lead screw through an input to the motor gear box and in order to pivotally readjust the seat back. The ... | 03/13/2007 |
| 7185951 | Chair and synchrotilt chair mechanism A synchrotilt chair mechanism and a chair are provided. The synchrotilt chair mechanism is for use on a chair that has a base assembly with an extending pedestal, a seat and a back. The mechanism includes a chassis that is coupled to the pedestal and a seat plate th... | 03/06/2007 |
| 7147282 | Chair with backrest depth adjustment mechanism A backrest depth adjustment mechanism which allows adjustment of the backrest assembly in a front-to-back manner with respect to the seat. The backrest assembly generally includes a backrest frame supporting the backrest. The backrest frame includes opposite end por... | 12/12/2006 |
| 7147277 | Foldable chair A chair. The chair folds by a plurality of hinges between an expanded position and a collapsed position to seat a person substantially horizontal while the chair is positioned on an angled surface. The chair comprises a back assembly, a seat assembly, a leg assembly... | 12/12/2006 |
| 7134722 | Chair A simple arrangement of a chair allows transformation of the shape of a backrest. The chair has a transformable backrest and a backrest receiving member that supports a bottom end portion of the backrest in a slidable manner toward a certain direction and an operati... | 11/14/2006 |
| 7131154 | Mobile transport device A convertible wheeled chair is easily changed by an attendant into a gurney of the same height as a patient bed. During the process of transferring a patient from an upright position to a reclining position, convertible wheeled chair shifts the center of gravity of ... | 11/07/2006 |
| 7090296 | Item of seating furniture An item of seating furniture having a seat and a backrest which are supported in an articulated manner on a frame, and having an operating mechanism for adjusting the inclination of the seat and the backrest. The backrest has a catch member and, when the backrest is... | 08/15/2006 |
| 6976698 | Manually operable standing wheelchair A manually operable standing wheelchair includes an actuator for moving an occupant from a sitting position to a standing position. The manually operable standing wheelchair has a lifting mechanism, including, for example, a ratchet, cable, pulley, and telescopic tu... | 12/20/2005 |
| 6969115 | Lumbar support member An adjustable lumbar support assembly for a seat has a curved lumbar support member that is made from a plastic material and an adjustment mechanism operatively connected to the curved lumbar support member for adjusting between various degrees of curvature. The cur... | 11/29/2005 |
| 6969116 | Chair with backward and forward passive tilt capabilities A chair with backward and forward passive tilt capabilities including a seat assembly, a back assembly, a frame assembly, a wheeled base, a pedestal and a tilt mechanism. The tilt mechanism includes first, second and third links, first, second, third and fourth pivo... | 11/29/2005 |
| 6959965 | Ergonomic chair A chair of the tilting type which includes a base, a seat and back, with the base pivotally supporting the seat with two parallel links of a four-bar parallel linkage, with one of the links extending to support the back. The four-bar linkage is duplicated on each si... | 11/01/2005 |
| 6945602 | Tilt control mechanism for chair A chair back is supported on a rigid upright coupled to a horizontal tilt shaft disposed under the front of the chair seat and supported on a control housing fixed to a pedestal. A tension mechanism urges the upright into an upright position. The chair seat is movab... | 09/20/2005 |
| 6935962 | Swing with an extension frame A swing frame unit of a swing includes a supporting frame, a seat frame disposed on the supporting frame, a backrest frame pivoted to the supporting frame and pivotable between a horizontal position and an inclined position, and an extension frame mounted movably on... | 08/30/2005 |
| 6935690 | Chair with synchronously moving seat and seat back A chair having a synchronously moving seat bottom and seat back includes a frame having a seat bottom support portion and a seatback support portion and a seat assembly having a seat bottom and a seat back interconnected by a flexible intermediate portion. The seat ... | 08/30/2005 |
| 6913316 | Chair In order to provide a chair that can support near a pelvis or a lumbar portion of a person who sits on the chair irrespective of a body proportion the person or a way to sit, a boundary portion K between a back and a seat is arranged to be transformable or movable a... | 07/05/2005 |
| 6827650 | Swing with a position adjusting member for adjusting a backrest relative to a seat frame A swing includes a seat unit having a seat frame disposed between two armrest frames, and a backrest frame pivoted to a rear end of the seat frame and to one of the armrest frames. A sliding member is fixed to the seat frame, and is slidably mounted on a guiding rai... | 12/07/2004 |
| 6824219 | Ergonomic office chair with an extending foot An ergonomic chair having an extending foot and the possibility of swiveling with tilting of the chair backrest synchronized with horizontal movement of the chair seat. It is intended for the linkage system to be installed on a swivel chair. With this (office) chair... | 11/30/2004 |
| 6820935 | Armchair with variable position The invention discloses an armchair (1) with variable position comprising a support structure (2) having a post (3) defining a first vertical axis (Z), a first frame (8) comprising a first pivot (9) defining a second horizontal axi... | 11/23/2004 |
| 6811218 | Chair with conforming seat A task chair including a seat support structure, and a seat supported by the seat support structure and having a seating surface which may ergonomically conform to a seated user. The seating surface includes rigid and flexible portions connected to one another, the ... | 11/02/2004 |
| 6786548 | Chair construction A synchrotilt chair includes a base, a back, a seat, and a link(s) pivoted to a rear of the base and to a bottom of the back to form a four-bar linkage arrangement. In one form, the chairs are nestable and stackable for dense storage. In another form, the chairs are... | 09/07/2004 |
| 6729688 | Seat and backseat assembly for seating, in particular office chairs The invention relates to seat and backrest arrangements in seat furniture, in particular office chairs, which comprise a seat plate, a seat-plate support and a backrest support and in which the seat plate (1), in the region of its front, knee-side edge (2 | 05/04/2004 |
| 6722735 | Chair with synchronously moving seat and seat back A chair having a synchronously moving seat bottom and seat back includes a frame having a seat bottom support portion and a seatback support portion and a seat assembly having a seat bottom and a seat back interconnected by a flexible intermediate portion. The seat ... | 04/20/2004 |
| 6715831 | Swing having seat units with tiltable backrests A swing includes two seat units swingably connected to an upright support frame through suspending members. Each seat unit includes a seat frame disposed between inner and outer armrest frames, and a backrest frame pivoted to the seat frame and rear legs of the armr... | 04/06/2004 |
| 6709058 | Ergonomic chair A chair of the tilting type which includes a base, a seat and back, with the base pivotally supporting the seat with two parallel links of a four-bar parallel linkage, with one of the links extending to support the back. The four-bar linkage is duplicated on each si... | 03/23/2004 |
| 6695404 | Chair A chair, in particular a work or office chair, having a seat mounted onto a chair frame. The front region of the seat can be inclined about a horizontal, pivoting shaft which is displaced upwards and downwards, following a spatial guide curve in relation ... | 02/24/2004 |
| 6644743 | Chair chassis A chair includes a chair base, a seat mounted on top of the chair base, a backrest pivotally attached to a rear of the seat, and a chassis mounted below the seat. When the backrest is tilted rearward, the seat moves forward and urges a movable member of t... | 11/11/2003 |
| 6588844 | Chair wit tiltable seat A chair has both a tiltable seat and a tiltable backrest mounted on a backrest support. The chair includes a pedestal mounted on a bottom of the tiltable seat. An eccentric disk is seated in the pedestal so as to be movable therein. A rod eccentrically pe... | 07/08/2003 |
