A backrest adjustment structure for a boat seat includes a backrest and a bracket. A bottom of the bracket is rotatably connected to a seat of a boat. A back of the backrest is provided with at least two spaced pivot bases. An upper end of at least one of the pivot bases has an upper restricting portion. A pivot shaft is formed on a top of the bracket. The pivot shaft is rotatably pivoted between the pivot bases. The bracket is selectively engaged with the upper restricting portion. The leaning angle is adjustable, meeting the needs of players.

A trim cover for a seat includes: a high extensible skin material; and a low extensible skin material. A joint part of the edge portion of the high extensible skin material and the edge portion of the low extensible skin material has a plurality of highly extensible protrusions and a plurality of low extensible protrusions, the plurality of highly extensible protrusions and the plurality of low extensible protrusions are each formed in a sharp tapered shape and are arranged alternately in an extending direction of the joint part, and at least a part of a boundary line between the highly extensible protrusion and the low extensible protrusion, which are adjacent in the extending direction of the joint part, is deviated from a line segment formed by connecting respective tips of the highly extensible protrusion and the low extensible protrusion to the low extensible protrusion side.

A miniature vehicle includes a chassis frame, front and rear wheel assemblies operatively coupled at front and rear ends of the chassis frame respectively, a motorized assembly supported on the chassis frame to power the rear wheel assembly, and a foot steering arrangement operatively coupled to the front wheel assembly. Therefore, the user is able to control the miniature vehicle by the feet of the user to precisely steer and control the miniature vehicle.

A backrest assembly includes a backrest (10), a support unit (11) and a fixture (12). The backrest is provided with an adjusting member (100). The support unit includes a front support (110), a rear support (111) and a plurality of joints (112). The rear support has a first end connected with one of the joints and combined with the fixture and a second end connected with another one of the joints and combined with a first end of the front support. The front support has a second end connected with another one of the joints and combined with the backrest. The backrest assembly is attached to an automotive vehicle by the fixture. The front support and the rear support form an angle and are locked by the joints.

A seat assembly for an emergency vehicle can include an adjustable base seat and backrest, a tank support assembly configured to selectively secure tanks of different sizes, and a tank clamp assembly configured to selectively secure tanks having bottom tank ends of different configurations. Slidably adjusting the base seat can cause adjustment of a recline angle of the backrest. One or more pads on the seat can be removable. The tank support assembly can include first and second tank securements and a locking member configured to rotate to selectively dispose the first or second tank securement to secure a tank. The tank clamp assembly can include a fixed foot clamp, a movable foot clamp, and an adjustment device configured to slide the movable foot clamp to selectively clamp the bottom tank ends of different sizes between the movable foot clamp and the fixed foot clamp.

A seat (1) comprises a seating surface (2) suitable to receive a user and a backrest (3) adaptable according to the user's needs. The seat further comprises a support structure (4) configured to connect the seat to the backrest. The backrest comprises an upper shoulder portion (6) and a lower lumbar portion (7) and the lumbar portion is movable along the support structure while the shoulder portion remains at a fixed height with respect to the support structure (4).

A system, method and apparatus for a transit seating system including multiple seat frames, each seat frame including, at least one forward support and at least one rearward support. The at least one forward support and the at least one rearward support are capable of being detachably secured to a transit vehicle floor. A seat back height track system is vertically and slideably coupled to the seat frame. A seat back subframe is coupled to the seat back height track system. A seat base frame is coupled to the seat back height track system through a seat hinge. The at least one forward support is capable of overlapping the at least one rearward support when at least two of the seat frames are in a nested or fully compressed or stowed configuration.

A seat assembly is provided herein. The seat assembly includes a seat member having a support surface. A pair of seat member bolsters is disposed on opposing sides of the seat member. A seat base supports the seat member and has a wraparound sidewall that extends above a bottom portion of each seat member bolster.

A motor vehicle including at least one individual seat is provided. The individual seat includes a seat part and a backrest. The seat part has a seat-part main shell and seat-part side shells arranged thereon on respective sides. The backrest has a backrest main shell and backrest side shells arranged thereon on respective sides. A rail system is provided, which moves the respective seat-part side shell and/or the respective backrest side shell in a desired or specified position by way of actuators.

A track assembly including a track and a support. The support may be configured for selective connection with the track. The support may include a lock plate that may be configured to selectively limit movement of the support relative to the track in at least one of a first direction and a second direction. The support may include an anchor that may be configured to selectively limit movement of the support relative to the track in at least one of the second direction and a third direction. The support may include a cam that may be configured to selectively engage and disengage at least one of the lock plate and the anchor from the track.