Abstract: To provide a technique that enables the reduction of fatigue of a vehicle occupant at low cost and without an increase in the number of parts. Without preparing a sensor in addition to a posture changing mechanism, the position of a lumbar vertebra or thoracic vertebra of each vehicle occupant is estimated by controlling the operation of the posture changing mechanism. The posture changing mechanism includes: a back side support mechanism; a first motor capable of shifting a position of the back side support mechanism with respect to a vertical direction; and a second motor capable of shifting the position of the back side support member with respect to a front-back direction.

Abstract: A vehicle seat (11) includes a seat frame (22a) having an opening (46) in a plate-shaped part (43), and an actuator (31) mounted on the plate-shaped part (43). Accordingly, it is possible to provide a vehicle seat that further contributes to quietness in the interior of a vehicle.

Abstract: A vehicle body structure includes an interior side wall, a floor structure and an airbag support member. The interior side wall defines a first door opening. The floor structure at least partially defines a passenger compartment of a vehicle along with the interior side wall. The floor structure defines seat supporting section adjacent to the first door opening. The airbag support member has an upper end and a lower end and an airbag attachment portion. The lower end is attached to the interior side wall at a first location above the floor structure between the first door opening and the seat supporting section, the upper end being attached to the interior side wall structure at a second location above the first location.

Abstract: A brake-side clutch part includes an outer ring whose rotation is restricted and an output shaft from which rotation is output. The outer ring is provided with a slide gear that meshes with the output shaft when rotational torque is cut off and releases a meshing state with the output shaft when rotational torque is transmitted. The output shaft is provided with an inner gear that meshes with the slide gear so as to be slightly rotatable. An alignment part that aligns a phase of the inner gear with that of the slide gear when rotational torque is cut off, and a centering part that returns the inner gear to a neutral position with respect to the output shaft when rotational torque is transmitted are provided between the inner gear and the output shaft.

Abstract: A vehicle seat structural component comprises a transverse tube and a structural element, in particular a vehicle seat side frame element the transverse tube is connected to the structural element in a connecting region. The structural element comprises a conical sleeve the structural is arranged captively in axial direction between deformed sections. One section is a curling wherein the conical sleeve is also arranged captively in radial direction.

Abstract: A twistable chair backrest frame is disclosed herein. It has a hollow section and two opposite elastic supporting ribs at a right side and a left side of the hollow section.

Abstract: A chair includes a seat surface and a laterally pivotable backrest. The backrest is secured to two joints, which have mutually parallel axes of rotation.

Abstract: A seatback carrier module includes first and second side portions spaced-apart from one another and interconnected by an upper portion. A cradle portion is disposed along the first and second side portions and the upper portion of the seatback carrier module. The cradle portion includes inner and outer edges with a rearwardly extending body portion. A mounting portion is disposed along a portion of the inner edge of the cradle portion. The mounting portion includes inner and outer edges with a body portion disposed therebetween. The mounting portion further includes a rearwardly extending sidewall disposed along the inner edge of the mounting portion. An airbag assembly is received within the cradle portion and has an inverted U-shaped configuration to substantially surround the outer perimeter of the seatback frame. The airbag assembly is an elongate member defining an overhead airbag assembly.

Abstract: A vehicle seat installed in a vehicle includes a seatback, a seat cushion, a seat frame, a movable part, a first spring, a second spring, and a preloading device. The first spring is capable of, when the movable part has shifted in a first direction, generating such an elastic force as causes the movable part to shift toward the neutral position. The second spring is capable of, when the movable part has shifted in a second direction, generating such an elastic force as causes the movable part to shift toward the neutral position. The preloading device is configured to change at least one of the elastic force exerted on the movable part by the first spring and the elastic force exerted on the movable part by the second spring.

Abstract: In a conventional vehicle seat with a reclining mechanism, a reclining unit is bolted to a seat frame. Consequently, a plate thickness has to be increased in order to ensure strength and a fastening bolt is required, producing factor which increases the number of parts. In order to solve the abovementioned problem, this vehicle seat with a reclining mechanism is configured such that a reclining unit (2) which has the reclining mechanism (5) is affixed to a back side frame (3) and a cushion side frame (40), which constitute the seat frame of the vehicle seat. The reclining unit (2) has the reclining mechanism (5), a movable bracket (6) which is affixed to the back side frame (3), and a stationary bracket (7) which is affixed to the cushion side frame (40). The reclining unit (2) is configured such that the reclining unit (2) is affixed to the back side frame (3) through the movable bracket (6) by welding and is fastened to the cushion side frame (40) by a bolt through the stationary bracket (7).

Abstract: An adjustment apparatus for a wheelchair back that can be used with various backs, that can be adjusted in a plurality of ways using a single adjustment point, and that can be adjusted without the use of tools. In another aspect, includes a support mechanism for mounting an adjustment apparatus for a wheelchair back that can be engaged using gravity, that provides at least one support point, and that can be utilized without the use of tools. Still another aspect of the wheelchair back assembly includes a mounting clamp that is simple in construction, that provides at least one support point, and that can be easily disassembled and adjusted to accommodate upright frame members of various diameters without the use of a tool.

Abstract: A vehicle seat includes a movable portion, a first spring, a second spring, and a preloading device. The first spring is capable of exerting an elastic force to displace the movable portion, which is displaced in a first direction, toward the neutral position. The second spring is capable of exerting an elastic force to displace the movable portion, which is displaced in a second direction, toward the neutral position. The preloading device is capable varying at least one of an elastic force applied by the first spring to the movable portion placed in the neutral position or an elastic force applied by the second spring to the movable portion placed in the neutral position.

Abstract: The vehicle seat includes a seat cushion and a seat back. The seat back includes one shaft member, a mount frame having a first bearing and a second bearing, and a first operation section and a second operation section which are arranged side by side. The shaft member is attached to the first and the second bearings, having no fixing section for the mount frame between the first and the second bearings, and serving as a center around which the first and the second operation sections are rotated.

Abstract: The present invention relates to a chair having a subframe, a seat part supported thereon and having a seat surface and a backrest which is disposed in the region of an edge of the seat part at least approximately perpendicularly to the seat surface and contains a contact surface for the back of a person sitting on the chair, wherein the backrest is designed such that it can pivot laterally about a pivot spindle extending at least approximately perpendicularly to the contact surface of the backrest.

Abstract: An occupant support adapted for use in a vehicle includes a seat bottom coupled to a floor of the vehicle and a seat back configured to pivot about a seat-back pivot axis relative to the seat bottom. The occupant support further includes a seatback-motion controller configured to control movement of the seat back relative to the seat bottom between a blocked arrangement and a freed arrangement.

Abstract: An item of seating furniture, in particular an office chair, has a seat carrier for a horizontal seat member, and a backrest carrier for a vertical backrest. The backrest carrier is constructed in a substantially U-shaped manner with two vertically orientated U-shaped members and with a horizontal upper U-shaped member. Wherein, along at least one rotation axis which extends below the seat member, a first rotary joint and a second rotary joint are provided for the lateral tilting movability of the backrest with respect to the seat carrier. The first and second rotary joints are arranged spaced apart from each other along the rotation axis.

Abstract: A seat assembly includes a back portion that is mounted for rotational movement about a seat back axis between a first seat position and a second seat position. The seat assembly also includes an armrest mounted for rotational movement about an armrest axis relative to the back portion between a stowed position and a use position. The seat back axis is coaxial with the armrest axis.

Abstract: A chair for providing support to a user's spine to improve posture and for providing ways for the user to perform exercises. The chair may include a flexible connection that enables a back support to move side to side through a sidebending range of motion of the user. The back support, which may include a flexible chair spine, may be configured to adapt to the curvature of the user's spine when the user is seated in the chair. A seat of the chair may include channels and vents to improve air circulation within the seat.

Abstract: A seatback panel forms a seatback which is configured to be selectable between a rising-up position and a falling-down position. The seatback panel is made of a metal-made plate material, and embossed portions and bead portions surrounding the embossed portions are formed in areas at its flat face. The bead portions are provided to protrude on one side of the panel and the embossed portions are provided to protrude on the other side of the panel. A protrusion height of the bead portion is configured to be different from a protrusion height of the embossed portion. Either one of the bead portion and the embossed-portion which has a smaller projection height is configured to protrude on a back-face side of the panel having the rising-up position.

Abstract: A vehicle seat includes a seatback configured to be tiltable in a front-rear direction; and a flexible covering configured to extend from the seatback to a deck board positioned behind the seatback. The covering includes a shaped portion that is provided in an intermediate location in a length direction of the extending covering, and is shaped so as to facilitate bending of the covering toward a region below the deck board, and a reinforcing portion that increases rigidity of a region away from the shaped portion so as to facilitate transmission of elastic force to the shaped portion, the elastic force being generated at a time when the covering bends due to a change in a separation distance between both end portions of the extending covering in the length direction in response to tilting of the seatback.

Abstract: The present invention relates to a seat for vehicles, comprising a backrest part with a support frame and a respective lining; a seat part; and a chassis to which the support frame of the backrest part is firmly attached and to which the seat part is attached such that it can shift forward or backward, the backrest part being provided with a rotating vane between the support frame and its lining, with an upper end attached in an articulated manner to the frame or to the chassis and with a lower end provided with a slide where a thrust pin arranged in the rear area of the seat part slides, such that the rotation of the vane with respect to the frame or the chassis shifts the seat and modifies the profile of the lining in the area covering the vane and therefore the shape of the support surface that the backrest part offers the user.

Abstract: There is provided a vehicle seat including a seat cushion configured to support a weight of a sitting passenger from below, and a seat back configured to support an upper body of the sitting passenger from a back side thereof. The seat back includes a seat back fixing part including a back frame which configures a frame of the seat back, and a seat back moving part configured to support the upper body of the passenger at a passenger sitting surface side of the seat back fixing part. The seat back moving part is supported to the seat back fixing part so as to be rotatable about an upper part thereof in a left-right direction which corresponds to lateral sides of the sitting passenger.

Abstract: An apparatus for sitting, including: a keystone assembly which connects various parts of the apparatus; a back that provides support for at least a person's back or shoulders; a floating lumbar support, which provides support for a person's lower back, attached to the keystone assembly; a seat that can adjust between a forward tilted and reclined position; a plurality of rollers, disposed on the keystone assembly, on which the seat rests; a central column, attached to the keystone assembly, on which the seat can spin; and a lower torsion spring connected to the seat and disposed on the keystone assembly allowing controlled movement of the seat.

Abstract: The present invention relate to a vehicle seat (1) having a backrest (3) which is provided to be pivotable on a seat part about a pivot axis.

Abstract: A vehicle seat comprises a seat part, a backrest part and at least one fitting which connects the backrest part with the seat part pivotally about a pivot axis and is formed to hold the backrest part in position to the seat part, when it is in a locked condition, and to permit pivoting of the backrest part relative to the seat part, when it is in an unlocked condition. An actuating shaft connected with the at least one fitting, which extends along a longitudinal axis, can be pivoted about its longitudinal axis for actuating the at least one fitting. An actuating element for pivoting the actuating shaft is connected with the actuating shaft via a pulling means. A force introduction means is provided, which is arranged on the actuating shaft and includes a first lever arm and a second lever arm, wherein the pulling means engages the first lever arm and the second lever arm, in order to introduce an actuating force into the actuating shaft.

Abstract: Multiple features of seating assemblies are detailed Innovations in or to tray tables, luggage bars, arm rests, seat backs, and seat frames are included, with features being incorporated into seating assemblies either separately or in any combination. The assemblies are configured principally for passenger aircraft but may be used elsewhere as appropriate or desired.

Abstract: A furniture member having a tilt position mechanism includes a base frame positioned on a floor surface. A first operating mechanism is connected to the base frame defining a tilt mechanism. The tilt mechanism includes a tilt motor connected to a rear member of the base frame. A torque tube positioned forward of the tilt motor is displaced by operation of the tilt motor. First and second rotation links are rotatably connected to the base frame and fixed to the torque tube. A pivot tube is positioned rearward of the torque tube and connected by first and second journal links to the support frame. The journal links are shorter than the rotation links such that torque tube forward and upward displacement forwardly rotates the journal links and displaces the pivot tube, creating a furniture member rear tilt position having the torque tube elevated above the pivot tube.

Abstract: An infant support includes a base and a backrest. The base is configured to rest upon a support surface and support an infant on the infant support. The base further includes a seat region and two arm portions. The backrest is pivotally coupled to the base between a storage configuration and an upright configuration. The backrest includes a front portion and a rear portion coupled together. The rear portion is configured to pivot between a closed position, in which the rear portion forms an interior cavity with the front portion, and an open position, where the rear portion is pivoted away from the front portion. The interior cavity is configured to receive and store napkins, wipes, or towels. The rear portion further includes an aperture and an operable door disposed proximate to the aperture. When the door is opened, the aperture provides access to the interior cavity for removing napkins, wipes, or towels from the infant support.

Abstract: A seating structure includes a central spine and an upper back structure having a pair of arms extending upwardly and outwardly from the central spine. The upper back structure is pivotally connected to the central spine about a first horizontal axis. A back support structure is pivotally connected to the spine about a second horizontal axis and is pivotally connected to the ends of each of the arms about a third horizontal axis.

Abstract: A seat assembly having a foldable seat back. The seat assembly may have an upper bracket that may be connected to a recliner mechanism that may be configured to rotate about a first axis. A rivet may be disposed on the upper bracket and may rotate about a second axis.

Abstract: A passenger seat assembly comprising an assembly of seating modules arranged for relative pivotal movement; a membranous mesh fixed about each module for providing support to a passenger in said passenger seat assembly; said mesh comprising a passenger support face and a reaction face on an opposed face of each of said modules; said mesh fixed so as to permit relative movement between the passenger face and reaction face and arranged to redistribute tension between the passenger face and the reaction face.

Abstract: A vehicle seat, in particular a passenger seat for a bus, includes a seat member with a seat upholstery carrier and seat upholstery, which is rigidly arranged on the seat upholstery carrier; the vehicle seat also includes a backrest with a back upholstery carrier and back upholstery, which is rigidly arranged on the back upholstery carrier; and a support structure for receiving forces which act on the vehicle seat. The support structure is constructed as a rigid carrier frame arranged at the peripheral side outside the seat member and the backrest and which is connected to the seat upholstery carrier and the back upholstery carrier. The carrier frame has carrier rails which are arranged in pairs and which extend along opposing lateral edges of the seat member and the backrest.

Abstract: A seat for a vehicle includes a seat pan, where the seat pan front edge defines a first pivot point and the seat pan rear edge defines a second pivot point, a backrest articulately disposed adjacent to the seat pan rear edge, a headrest articulately disposed adjacent to the backrest top edge, and two armrests positioned adjacent lateral sides of the seat pan. The armrests define top surfaces that are disposed a predetermined height above the seat pan top surface. The seat is configurable into at least one of a taxi, takeoff and landing position, a napping position, and a sleeping position. The first pivot point remains in a substantially fixed position for the taxi, takeoff and landing position, the napping position, and the sleeping position. The predetermined height varies for each of the taxi, takeoff and landing position, the napping position, and the sleeping position.

Abstract: A spring (10), for a locking device of a vehicle seat, is designed as a yoke spring defining an axis (A) and made of a spring wire. A cross section diameter (q) has one leg (10a) on each of both ends of the spring wire. The two legs (10a) can pivot relative to each other in a circumferential direction of the axis (A), thereby transitioning the spring (10) from a relaxed state into a tensioned state. At least one first winding (10b) is provided between the legs (10a) that is wound completely around the axis (A) and having a winding diameter (di) in the relaxed state. At least one adjacent second winding (10b) is provided between the legs (10a) and disposed offset along by the axis (A) by a pitch (h), wherein the second winding (10b) may optionally be wound not fully about the axis (A). The second winding (10b) has a winding diameter (d2) in the relaxed state. The pitch (h) is less than the cross section diameter (q).

Abstract: Described are passenger seat assemblies including spreaders (18) with a transitional region having a forward surface with a radius of curvature of about 3.5 to 3.7 inches and an aft surface with an angular profile configured so that the aft surface is located forward of a plane formed by a surface of the at least one seat back (12) in a fully upright position. The passenger seat assemblies also include leg assemblies (22 with a forward leg portion having a forward surface that is substantially aligned with a forward base frame tube, and an aft surface with an angular profile having a shape of an “r.

Abstract: In a method for producing a vehicle seat fitting, in which a plain bearing bush (28) is pressed in the axial direction into a receptacle of a first fitting part (11), wherein the pressed-in plain bearing bush (28) has a radially protruding securing region (28b), the securing region (28b) is formed before or after the pressing-in operation by material of the plain bearing bush (28) being displaced uncut, and the wall thickness (b) of the plain bearing bush (28) being less than 1.5 mm.

Abstract: A seat assembly having a seat back and a fold assist mechanism. The fold assist mechanism may have a drive plate and a spring. The spring may bias the seat back from a first position toward the second position when the spring engages a drive plate flange.

Abstract: An item of seating furniture, including a base fixed in position during use, a seat unit with a seat surface, and a leg unit moveable in relation to the seat unit and having a leg support surface. The leg unit is displaceable via a movement mechanism between a storage position and a use position. The movement mechanism is designed for transferring the leg unit from the storage position into the use position. The movement mechanism has an intermediate support displaceable in relation to the seat unit or the base via a first pivoting guide. The pivoting guide has a first rear pivot lever between the intermediate support and the seat unit or the base, and the leg unit is displaceable relative to the intermediate support via a second pivoting guide. The second pivoting guide has a first front pivot lever between the intermediate support and the leg unit.

Abstract: A seat assembly having a foldable seat back. The seat assembly may have an upper bracket that may be connected to a recliner mechanism that may be configured to rotate about a first axis. A rivet may be disposed on the upper bracket and may rotate about a second axis.

Abstract: A vehicle seat, in particular to a motor vehicle seat, having a base structure (3) that is to be connected to the vehicle structure (S) and a backrest (10) that can be moved relative to the base structure (3) by kinematics, such as to transfer the vehicle seat (1) from at least one usage position allowing a person to sit down to a non-usage position or to another usage position. A multi-bar linkage, in particular a four-bar linkage (V), exists at least temporarily, which linkage controls the kinematics. A leaf spring (30) is provided in the vehicle seat. The leaf spring forms a gear element of the multi-bar linkage in the relaxed extended state thereof.

Abstract: Disclosed herein is a single arm adjustment mechanism for supporting an object, the single arm adjustment mechanism comprising: a support arm; an upper adjustment assembly coupled to an upper end of said support arm, said upper adjustment assembly capable of being coupled to said object such that said object pivots about a first axis; and a lower adjustment assembly capable of being fixed to a support and pivotally coupled to a lower end of said support arm such that said support arm pivots about a second axis parallel to said first axis in order to maintain said object in a desired angular orientation with respect to said support.

Abstract: A vehicle seat includes a rotationally moving hook mechanism provided on a seat back, and a striker disposed in a rear of the seat back and fixed onto a vehicle body. The vehicle seat includes a left lock mechanism and a right lock mechanism which fix the seat back at an erection position, and a supporting bracket that is provided on the vehicle body to tiltably support the seat back. The striker and the supporting bracket are disposed on a rear side of each of a left side bolster and a right side bolster. An insertion hole, a fixing wire and a protruding portion are provided on the left side bolster and the right side bolster, and on the striker and the supporting bracket to determine positions of the left side bolster and the right side bolster and positions of the striker and the supporting bracket.

Abstract: A seat latch assembly for providing manual triggering and subsequent powered rewinding of a seatback. A vertical support stanchion is secured to a floor location of a vehicle frame. An arm is pivotally supported at a lower end to an upper location of the stanchion. The arm engages along a side location of a frame forming a portion of the seatback in a first upper design position. A lever and trigger initiates forward rotating dump of the seatback. An arrangement of linkage members are also located upon the inboard side of the stanchion for providing upright rewinding of the seatback and for subsequently resetting the linkage mechanism through the driving action of a motor operable drive shaft associated with lowermost pivotal mounting location of the stanchion support.

Abstract: A seat assembly having a seat bottom and a seat back. The seat back includes first and second side members and a cross member. The cross member has an extended portion that extends from the first side member. A bushing is disposed on the extended portion and is received by a hole in the seat bottom to support pivotal movement of the seat back.

Abstract: Proposed is an air passenger seat having a frame which is provided for attaching to a floor of an aircraft cabin and a backrest which is pivotably or securely mounted on the frame by means of a rotation spindle, wherein the seat has a seat reference point (SRP) which is defined according to the SAE International Aerospace Standard AS8049. According to the invention, the rotation spindle of the backrest has, in a line parallel to the cabin floor and as seen parallel to the direction of flight, a separation n of less than 40 mm from the seat reference point.

Abstract: A frame structure to be provided in a seat back having a seatbelt retractor and a seatbelt guide at a top of a seat, wherein the frame structure is an integral structure including an oblique frame obliquely extending upwardly to a seatbelt guide installation section from a first support point located at an end side of a lower part of the seat back in a seat width direction, a vertical frame extending upwardly from a second support point located at another end side of the lower part of the seat back in the seat width direction and connects to the oblique frame at a top, and a transverse frame extending between a lower end of the oblique frame and a lower end of the vertical frame.

Abstract: A chair in which a biasing force acting on a back can be changed even if the stroke of a moving member is small, thereby enabling the device to be compact, and the biasing force can be steplessly adjusted with light force. A biasing force transmission member (41) reverses the biasing force of a biasing mechanism acting on a tip portion of the biasing force transmission member (41) which is a point of effort (Q) with a point abutting a fulcrum member (49) working as a fulcrum (P) for a lever, transmits the biasing force to a base end of the biasing force transmission member (41) which is a point load (R) to bias the back in an upright direction, and moves the fulcrum member (49) along a side edge of the biasing force transmission member (41) on a pressure receiving side to be able to adjust the biasing force.

Abstract: A component, in particular for a vehicle scat, has an opening for the fastening of the component, the opening having a centre point and a radius. The component is locally hardened at at least one point in the vicinity of the opening and at a distance from the opening. The vicinity of the opening is a region around the centre point with a radius of up to four times the radius of the opening.

Abstract: A fitting for a vehicle seat, such as a motor vehicle seat, includes a first fitting part, on which a ring gear is formed, and a second fitting part, on which a spur gear is formed, which meshes with the ring gear. The two fitting parts are in transmission connection with each other. A rotatably supported eccentric rotates in the circumferential direction for driving a relative rolling motion of the spur gear and the ring gear. The outside of the eccentric is arranged in a plain bearing bushing in the radial direction. The plain bearing bushing is arranged in a bearing seat, such as a collar of the first or second fitting part. The plain bearing bushing has a wall thickness of less than 1 mm and is connected to the bearing seat in a bonded manner by laser welding. A running side of the plain bearing bushing is plastic-coated.

Abstract: A seat reclining apparatus for a vehicle: a locking mechanism that is interposed between a seat cushion and a seatback and selectively switches inclining of the seatback between a permitted state and a regulated state with respect to the seat cushion; a first operation member that performs a first unlocking operation which allows the seatback to incline with respect to the seat cushion within a angle range with respect to the locking mechanism; a second operation member that performs a second unlocking operation which allows the seatback to incline with respect to the seat cushion to a forward tilt position exceeding the angle range with respect to the locking mechanism; and a stopper mechanism that regulates a rearward tilt of the seatback at a regulation angle position included within the angle range in a state of the second unlocking operation.