A back pad assembly for a material handling vehicle is provided that includes a back pad, a framework, and a mounting frame. The back pad includes a center portion, a first side portion, and a second side portion. The first side portion defines a first curved profile, and the second side portion defines a second curved profile. The first curved profile and the second curved profile are arranged on laterally-opposing sides of the center portion. The framework includes a first mounting bar and a second mounting bar. The framework is coupled to the back pad. The first and second mounting bars are adjustably supported by the mounting frame to enable the back pad to be selectively mounted at varying heights along the mounting frame.

A seat for a vehicle comprising a bearing structure, which is elastically deformable, is divided into a cushion and a backrest and is obtained by means of a foam having a net-like structure. The bearing structure of the cushion has: an outer zone, which extends along the entire periphery of the cushion and has a first bearing capacity; and an inner zone, which extends at the centre, is completely surrounded – on all sides – by the outer zone and has a second bearing capacity smaller than the first bearing capacity.

A seat backrest is provided, comprising a framework (1) including an upper portion (10), a lower portion (20), a central support portion (40) and two side portions (30) formed integrally by injection molding a thermoplastic material; and an elongated reinforcement (60) embedded in the side portion (30) and the central support portion (40) by overmolding and extending along the side portion (30), the reinforcement (60) being configured to bend along a boundary (35) between the side portion (30) and the central support portion (40). A seat including the backrest is also provided.

A backrest of a vehicle seat includes an armature and an upholstery fixed to the armature. The upholstery has a slit for accommodating a headrest support rod by relative movement of the upholstery with respect to the armature in a longitudinal direction of the vehicle seat. The backrest further includes first and second trim elements. Each trim element forms a notch. The notches of the first and second trim elements define a passage for a headrest support rod. The second trim element partially covers the slit in the upholstery. The first and/or the second trim elements is/are in contact with the upholstery.

The present disclosure relates to a vibration device configured to be integrated into a vehicle seat and comprising a vibrator capable of generating vibrations. This device further comprises an attachment mechanism capable of attaching the vibrator to the back or underside of a support layer integrated into a member of the seat, and a damper which is in contact with this support layer and with the vibrator, and which is capable of reducing, in the support layer, the vibrations generated by the vibrator.

A backrest of a vehicle seat includes an armature and an upholstery fixed to the armature. The upholstery has a slit for accommodating a headrest support rod by relative movement of the upholstery with respect to the armature in a longitudinal direction of the vehicle seat. The backrest further includes first and second trim elements. Each trim element forms a notch. The notches of the first and second trim elements define a passage for a headrest support rod. The second trim element partially covers the slit in the upholstery. The first and/or the second trim elements is/are in contact with the upholstery.

A seat assembly includes a seatback having a cushioned component pivotally coupled to the seatback and operable between deployed and retracted positions. The cushioned component includes an interior cavity. A rack assembly is positioned within the interior cavity and includes a forward-most rack with a first receiving area. The rack assembly further includes a rearward-most rack having a second receiving area. A first cartridge assembly is removeably received in the first receiving area of the rack assembly. A second cartridge assembly is removeably received in the second receiving area of the rack assembly. The rack assembly may also include one or more intermediate rack assemblies positioned between the forward-most and rearward-most rack assemblies for supporting other intermediate cartridge assemblies. Each cartridge assembly includes a different density profile for providing variated comfort settings to the seatback of the seat assembly.

A mat mounting structure for mounting a mat on a seat back frame in a seat back may have a guide wire attachable to the mat configured to receive a force from a back of an occupant on the seat back. The guide wire may have a straight part extending linearly in a longitudinal direction of the seat back frame on a head side or a root side of the seat back frame. A bushing including a penetration hole in which the straight part is insertable in the longitudinal direction may be included in the structure. An attachment hole part in the seat back frame may also be part of the structure. The bushing may be detachably engageable with and attachable to the attachment hole part.

A seat assembly includes a seatback having a cushioned component pivotally coupled to the seatback and operable between deployed and retracted positions. The cushioned component includes an interior cavity. A rack assembly is positioned within the interior cavity and includes a forward-most rack with a first receiving area. The rack assembly further includes a rearward-most rack having a second receiving area. A first cartridge assembly is removeably received in the first receiving area of the rack assembly. A second cartridge assembly is removeably received in the second receiving area of the rack assembly. The rack assembly may also include one or more intermediate rack assemblies positioned between the forward-most and rearward-most rack assemblies for supporting other intermediate cartridge assemblies. Each cartridge assembly includes a different density profile for providing variated comfort settings to the seatback of the seat assembly.

In a vehicle seat, a seat back includes a backrest on which an occupant sitting on a seat cushion leans his/her back, and banks supporting the back of the sitting occupant on both sides. Urethane pads configuring the banks are formed in a shape protruded to the front with respect to a urethane pad configuring the backrest, the back face sides of the urethane pads configuring the banks formed in the shape protruded to the front are formed in a recessed shape with respect to a back face side of the urethane pad configuring the backrest, and on the portions of the back face sides of the urethane pads configuring the banks formed in the recessed shape, protrusions having faces at the same height as the back face side of the urethane pad configuring the backrest and extended to the portions formed in the recessed shape are formed.