Abstract: An object includes an internal support and an exterior portion coupled to the internal support. A deformation portion includes a top portion and a bottom portion, and a force imparted to a first location of the exterior portion causes the bottom portion of the deformation portion to contact the exterior portion. The contact causes a deformation of the exterior portion that moves a second location of the exterior portion downward relative to the first location.

Abstract: The present disclosure provides a seat rail locking device for a vehicle, which may apply a method of moving a lock pin in an upward direction to lock a seat rail by moving away from a conventional seat rail locking method of moving the lock pin in a directly downward direction to pass through a floor panel, thereby not causing the interference with the floor panel at all to flexibly apply a battery mounting structure to the floor panel, improving an assembling property as an operator may easily assemble a lock pin guide configured to guide the lock pin to move in upward and downward directions to a movable rail with only one-touch operation, and preventing the lock pin from being damaged or separated by mounting a cap at an upper end of the lock pin.

Abstract: The present disclosure provides a seat rail locking device for a vehicle, which may apply a method of moving a lock pin in an upward direction to lock a seat rail by moving away from a conventional seat rail locking method of moving the lock pin in a directly downward direction to pass through a floor panel, thereby not causing the interference with the floor panel at all to flexibly apply a battery mounting structure to the floor panel, improving an assembling property as an operator may easily assemble a lock pin guide configured to guide the lock pin to move in upward and downward directions to a movable rail in only an insertion and rotation operation.

Abstract: A vehicle provides a frame defining an operator compartment, the operator compartment having a back section and having open sides and an open bottom. A first movable chair is attached to a motorized chair movement device which allows the chair to be moved vertically and horizontally on the back section of the operator compartment within the operator compartment. A pair of rear wheels is connected to the frame, each being driven by an electric motor. The frame has an upper section defining the top of the operator compartment and being constructed and arranged to support a solar panel. The solar panel is electrically connected to at least one battery which is connected to the frame and which provides power to the vehicle. A front caster wheel is rotatable connected to a caster wheel arm which is rotatably connected to the upper frame section. A control computer is connected to the rear wheel motors, motorized chair movement device, caster wheel arm and foot/leg rest.

Abstract: An air tank assembly disposed within a cab of a vehicle having a floor and a seat for a vehicle occupant comprises a platform mounted to the floor of the cab of the vehicle. A base of the seat is mounted to the platform opposite to the floor of the cab of the vehicle. At least one tank providing storage for compressed air is located by the platform above the floor of the cab of the vehicle adjacent the base of the seat.

Abstract: A safety structure includes a seat, having a base and a seatback, a motion control assembly, and an energy absorber. The motion control assembly is configured to translate and/or rotate during a collision. The energy absorber includes a first end configured to couple to the seatback proximate the base, and a second end configured to couple to a structural support of a vehicle. The energy absorber is configured to deform during the collision to absorb energy and based on the translation and/or rotation of the motion control assembly.

Abstract: A vehicle includes a first post and a second post spaced cross-vehicle from the first post. The vehicle includes a vehicle roof above the first post and the second post. The vehicle includes a first track supported by the vehicle roof, a second track supported by the first post, and a third track supported by the second post. The vehicle includes a seatbelt assembly including a retractor slidably engaged with the first track, an anchor slidably engaged with the second track, and a buckle slidably engaged with the third track.

Abstract: An assembly includes a seat bottom, a scissor mechanism, and a pyrotechnic actuator. The seat bottom includes a rear seat cushion and a front seat cushion in a seat-forward direction from the rear seat cushion. The rear seat cushion is movable between a raised position and a lowered position relative to the front seat cushion. The scissor mechanism is coupled to the rear seat cushion and movable between an extended position and a compressed position. The scissor mechanism in the extended position holds the rear seat cushion at the raised position. The scissor mechanism in the compressed position holds the rear seat cushion at the lowered position. The pyrotechnic actuator is connected to the rear seat cushion and dischargeable to move the rear seat cushion from the raised position to the lowered position.

Abstract: An energy absorbing mounting structure for a vehicle seat. The mounting structure includes a linear rail configured for being fastened to a vehicle passenger cabin floor structure and a deformable element. The deformable element has a first attachment portion, a second attachment portion and a deformable section arranged between the first and second attachment portions. The first attachment portion is fastened to the rail and the second attachment portion is configured for being fastened to the vehicle passenger cabin floor structure via an opening in a bottom of the rail for enabling relative motion between the floor structure and the rail in a longitudinal direction of the rail by deformation of the deformable section in the event of a vehicle crash.

Abstract: In a structure in which a lower arm is fixed to a vehicle, provided is a vehicle seat that can reduce an impact applied to a recliner. One aspect of the present disclosure is a vehicle seat including a lower arm and a recliner. The lower arm includes an arm body to which the recliner is attached, a first fixing portion to be attached to the vehicle in a lower position, and a second fixing portion attached to the vehicle in a rear position. The arm body includes a first recess arranged between the recliner and the first fixing portion in an up-down direction, the first recess extending from an edge of the arm body, and a second recess arranged between the recliner and the second fixing portion in a front-rear direction, the second recess extending from the edge of the arm body.

Abstract: Embodiments related to systems and methods for controlling the relative amounts of rotation and heave motions applied to a seat by an active seat suspension system are described.

Abstract: A vehicle seat restraint system includes a vehicle seat of a vehicle. The vehicle seat includes a leg-rest supporting lower legs and feet of an occupant of the vehicle seat. An in-vehicle occupant detection system identifies positions of the lower legs and the feet of the occupant. A restraint actuator is connected to the vehicle seat. A safety restraint element is extended by actuation of the restraint actuator from a stowed position proximate to the leg-rest into an engaged position wherein the safety restraint element contacts and restrains the lower legs and the feet of the occupant against the leg-rest, mitigating against occupant knee hyperextension due to leg straightening at an occupant knee joint.

Abstract: A seat back frame is provided with a plurality of upright members, and at least one cross member interconnecting the plurality of upright members. At least one of the plurality of upright members has a weakened region to control deformation of the seat back frame in an impact condition.

Abstract: A vehicle includes a passenger compartment. A wall is positioned within the passenger compartment. A support structure is positioned on the wall. The support structure defines a series of slots. A seating assembly engages at least one of the slots of the series of slots such that the seating assembly is suspended above a floor of the passenger compartment.

Abstract: An assembly includes a track having an axis. The assembly includes a vehicle seat moveable relative the track along the axis. The assembly includes a ramp elongated along the axis. The assembly includes a linear variable differential transformer having a housing and a plunger moveably supported by the housing. The plunger contacts the ramp. The ramp being fixed relative to one of the vehicle seat or the track and the housing of the linear variable differential transformer being fixed relative to the other of the vehicle seat or the track.

Abstract: A system for detecting one or more characteristics of an object within an automotive vehicle includes one or more sensors mounted within an interior of the vehicle or on an exterior of the vehicle, with each sensor being configured to detect a location, an orientation, a size and/or an object type of the object, and a controller operably connected with the one or more sensors and configured to assess whether the object is disposed in a predetermined alertworthy disposition. A method for detecting characteristics of the object within the vehicle includes determining the location, orientation, size and/or object type of the object using the one or more sensors, and assessing whether the object is disposed in a predetermined alertworthy disposition.

Abstract: A control apparatus for controlling operation of a work robot for performing work inside a target region using a manipulator includes a trajectory information acquiring unit for acquiring N?1 or N pieces of trajectory information respectively indicating N?1 or N trajectories connecting N work regions where the work robot performs a series of work operations in order of a series of work operations; a classifying unit for classifying the N?1 or N trajectories as (i) trajectories that need correction or (ii) trajectories that do not need correction; and a trajectory planning unit for planning a trajectory of a tip of the manipulator between two work regions relating to the each of the one or more trajectories, for each of the one or more trajectories classified as a trajectory that needs correction by the classifying unit.

Abstract: A forklift includes a cabin and a seat for use by a driver arranged in the cabin. The cabin has a lateral opening to enter and exit the cabin, and the seat is mounted rotatably relative to the cabin. There is a safety bracket for preventing the driver from involuntarily exiting the cabin through the lateral opening, and for providing lateral impact protection. The safety bracket is mechanically connected to the seat to be rotatable together with the seat.

Abstract: A body structure for an electrically operated vehicle has an installation space for a traction battery which is downwardly open in the vehicle vertical direction and upwardly delimited by a floor sheet-metal part forming the vehicle floor. The traction battery is inserted into the installation space from below the vehicle. A free installation gap is formed between a battery ceiling wall and the floor sheet-metal part and a spacer is supported between the battery ceiling wall and the floor sheet-metal part. The spacer is formed in two parts, namely, a buffer made from an elastic, flexible, soft component and a base made of a component-stiff hard component. In an undeformed production state, the installation height of the spacer is greater than the gap size of the installation gap. In an installation position, the spacer is supported between the floor sheet-metal part and the battery ceiling wall, elastically deforming the buffer.

Abstract: A supplemental passive safety apparatus is provided which benefits known technology for detecting traffic emergencies. The apparatus may contain a movable rectangular frustum which interacts with rigid crossbars to control middle pivot joints responsible for adjusting location of horizontal support bottom panels with a cushion. An alternative apparatus may contain a rope traveling through a double flanged wheel mounting to a pneumatic cylinder instead of a rigid crossbar interacting with a movable rectangular frustum. Simultaneously with an opening of an automatic valve, compressed air is transmitted from a cartridge to a pneumatic cylinder causing a piston with rod to move toward a front crossbar. The rigid crossbar in one version or rope in an alternative version release a pivot joint controlling location of horizontal support bottom seat panels with cushion.

Abstract: An embodiment rail device includes an upper rail, a first bearing support on the upper rail, a lower rail, a bearing connection end on the lower rail and inserted into the first bearing support, a vertically elongated bearing contact adjustment hole on the lower rail, an upper bearing rotatably connected to the bearing connection end and in close contact with a floor of the first bearing support, a lower plate including a fastening groove that receives a lower end of the lower rail, a bearing shaft mounting hole on a wall surface portion of the fastening groove and matched with the bearing contact adjustment hole, a second bearing support outside the fastening groove and having an opened upper portion, a lower bearing rotatably disposed within the second bearing support, and a bearing shaft fastened to the bearing shaft mounting hole and the bearing contact adjustment hole by a screw.

Abstract: A land vehicle includes a frame structure, a plurality of wheels, and an impact management system. The frame structure includes an operator cage that at least partially defines an operator cabin and a rear compartment positioned rearward of the operator cage in a longitudinal direction. The frame structure includes a pair of rails that each extends in the longitudinal direction from a first end arranged adjacent a pair of front wheels to a second end arranged adjacent a pair of rear wheels. The plurality of wheels are supported by the frame structure. The plurality of wheels includes the pair of front wheels and the pair of rear wheels. The pair of front wheels are positioned forward of the pair of rear wheels in the longitudinal direction.

Abstract: In an arrangement which includes: a seat support body slidably supported on a fixed rail fixed to a floor; a power supply device supplying power to an electrical component on a seat side; and a drive device driving the seat support body in a front-and-rear direction and having a motor and a transmission member disposed so as to pass longitudinally through an interior of the fixed rail, the power supply device includes: a housing housing an electric wire for power supply; and a slider linked to the seat support body and slidable within the fixed rail. The electric wire is drawn out from the housing, retained by the slider and slidable within the fixed rail. The slider has an interference-avoiding portion for avoiding interference with the transmission member disposed so as to pass longitudinally through the interior of the fixed rail.

Abstract: A seating system is provided which comprises a seat movable between a standard seating position, in which the seat faces frontwards and the seat backrest is in an upright position for conventional driving mode, and at least one non-standard seating position in which the seat is rotated around a vertical axis with respect to the standard seating position and the backrest is reclined rearwards by rotation around a first transverse horizontal axis from the standard seating position. The seat is equipped with at least one passive safety device switchable between a working or active state, in which the device is able to protect an occupant of the seat in case of an impact of the vehicle, and a non-working or inactive state.

Abstract: An electric lock for a fold-down seat of a motor vehicle is situated inside a housing. The lock includes a locking means, a blocking element, a transmission lever attached to the blocking element so as to move it between a position of blocking the locking means in the catch retention position and a position in which it is effaced with respect to the movement of the locking means. The lock includes an actuator comprising an electric motor, the actuator being able to move the transmission lever. The transmission lever of the lock is able to move about an axis of rotation and has two arms extending radially from the axis, the first arm at its end having a handle and the second arm at its end having a means of attachment to the blocking element.

Abstract: The disclosure provides for a system that includes a seat mounted in a vehicle. The seat includes a base, a back support, a hinge, and a seat belt integrated into the seat. The back support is capable of rotating relative to the base and thereby reclining. The hinge is between the base and the back support and is configured to lock the back support in positions in relation to the base. The seat belt has a shoulder portion and a lap portion and is attached to the seat at a shoulder anchor in the back support and a base anchor in the base. When a generated torque, created from a forward force applied by the shoulder portion of the seat belt, exceeds a threshold amount of torque, the hinge is configured to unlock and back support is configured to rotate forward from a reclined position towards an upright position.

Abstract: The technology provides a lockout assembly that covers a latching mechanism, where the latching mechanism would enable a passenger to fold down the rear seat(s) of a vehicle. This can be particularly beneficial when the vehicle is operating in an autonomous driving mode, because certain areas within the vehicle may be restricted from passenger access. For instance, access to the trunk or cargo area may be limited to authorized service personnel. The lockout assembly includes a base unit and a cover. The cover is releasably secured to the base unit using one or more clip members. The base unit is fixedly secured to a receptacle of the latching mechanism using one or more fastener members, such as a screw. Once the cover is releasably secure, it may be completely or substantially flush with an inner edge of the receptacle.

Abstract: Examples herein describe a vehicle seating system. The vehicle seating system may include a rail mounted to a vehicle roof and supported by a vehicle frame. The vehicle seating system may include an anchor system movable along the rail, the anchor system including: a locking device that locks the anchor system in a position along the rail; and a heating, vacuuming, and air conditioning (HVAC) port in communication with a HVAC duct within the vehicle roof. The vehicle seating system may include an interchangeable seat module that connects to the anchor system to suspend the seat module above a floor of the vehicle, wherein the seat module connects to the HVAC port.

Abstract: A passenger restraint system of a vehicle includes a passenger restraint article with an interface, and a locking device that secures the interface. In some embodiments, the vehicle includes a vertical channel that enables the locking device to travel up and down. The locking device may include a camera that enables the locking device to align with the interface, and once aligned, the locking device secures the interface. In additional or alternative embodiments, the locking device includes two C-bars and a biasing element that urges the locking device into an open position. When the passenger sits or leans against the opened C-bars, the force caused by the interface on the C-bars overcomes the force applied by the biasing element, urging the C-bars into a closed position. The locking device is then secured by engaging a locking bar that pushes against a surface of the C-bars.

Abstract: To be able to compactly dispose an airbag device at a front portion of a saddled vehicle. An airbag device for a saddled vehicle including: an inflator; an airbag adapted to be expanded by gas discharged from the inflator; and, a retainer accommodating the airbag, the airbag being deployed upward from an opening of the retainer, in which the retainer is disposed between a meter provided in front of a handle for steering and a headlight provided in front of the meter in a side view of the vehicle.

Abstract: A seating system for a vehicle having a seat and a vehicle body includes a latch system having a seat portion configured for attachment to the seat and selectively engageable to and disengageable from the vehicle body. The seat portion may include a deformable portion configured to deform when the seat portion is engaged with the vehicle body and the seat is subjected to a force directed in a forward direction relative to the seat. The seat portion may also include a detachable portion having a plurality of elements configured such that at least one of the elements separates from at least one other of the elements when the seat portion is engaged with the vehicle body and the seat is subjected to the force.

Abstract: Systems and methods presented herein include an evacuation deterrence system that includes a vehicle having a member configured to deter evacuation of passengers from the vehicle. The evacuation deterrence system also includes an evacuation deterrence device configured to latch onto the member of the vehicle. The evacuation deterrence device includes an elongated main body, a handle portion, a latch mechanism configured to latch onto the member of the vehicle, an actuation mechanism configured to actuate the latch mechanism, and a positioning mechanism configured to fix a first location of the elongated main body relative to the vehicle. The elongated main body is configured to be extended relative to the vehicle when the first location of the elongated main body is fixed relative to the vehicle via the positioning mechanism.

Abstract: A safety system includes a restraint configured to secure an occupant to a seat, an anchor coupled to the restraint and movable along an anchor guide, an anchor energy-absorbing (EA) device configured to control movement of the anchor along the anchor guide, and a controller that includes a processor configured to receive information indicative of an imminent vehicle event, receive information indicative of a recline angle of the seat being above a recline threshold, and send a command to enable the anchor to move along the anchor guide under control of the anchor EA device based on the information indicative of the imminent vehicle event and the recline angle being above the recline threshold.

Abstract: An assembly includes a vehicle floor defining a seating area. The assembly includes a post supported by the vehicle floor and movable along a vehicle-longitudinal axis adjacent the seating area. The assembly includes an airbag supported by the post above the vehicle floor.

Abstract: A vehicle seat arrangement has a vehicle seat for attaching to a vehicle structure of a vehicle, in particular a motor vehicle, with a lower seat part having a seat structure and with a seat back. The lower seat part is mounted or can be mounted in a longitudinally displaceable manner on the vehicle structure by a seat console, wherein at least the seat back is adjustable from a sitting position into a resting or lying position, and wherein between the lower seat part and the vehicle structure an energy absorption device is provided. In the event of a collision of the vehicle with an obstacle, the energy absorption device permits a braked relative movement along a braking path between the vehicle seat, which persists in a forwards movement due to inertia, and the vehicle structure, which is braked due to the collision. In the normal state, the vehicle seat is locked relative to the vehicle structure by a locking device and the locking is released in the event of a collision.

Abstract: A plurality of airbags 14 are arranged, in a deflated state, at mutually different heights behind respective panels of a front face part of a vehicle, and are capable of being deployed frontward from the front face part of the vehicle. A head position deduction unit 19 of an ECU 15 deduces the height position of the head of a pedestrian from information provided by a vehicle forward camera 12 and a millimeter-wave radar 13. A collision detection unit 18 of the ECU 15 computes, from information provided by the millimeter-wave radar 13 and a vehicle speed sensor 11, a time-to-collision TTC with respect to the pedestrian, and, after elapse of the time-to-collision TTC, detects a collision between the vehicle and the pedestrian.

Abstract: A crash-arresting unit for a vehicle seat may have a locking element and an actuating unit. The locking element can be brought into form-fitting engagement with a mating element via the actuating unit. The actuating unit may be an electromechanical actuating unit having a fusible wire, where destruction of the fusible wire frees a movement of the locking element in the direction of the mating element.

Abstract: A vehicle occupant restraint device for the protection of a vehicle occupant in a vehicle seat comprises plural restraining elements and a controller. The controller differentiates between a first situation in which the vehicle seat is in a position within the range of a standard position, and a second situation in which the vehicle seat with the vehicle occupant is in a position beyond the standard position. When the first situation is given, the controller activates a tensioning unit for tensioning a seat belt of the second restraining element and an airbag of the first restraining element. When the second situation is given, a third restraining element integrated in the vehicle seat and/or operatively connected with the vehicle seat can be activated and/or connected by the controller so that the vehicle seat is moved initially via the third restraining element to a position within the range of the standard position.

Abstract: A seat belt anchorage assembly adapted to be coupled to an interior structure (e.g., a seat) of a vehicle, including: a seat belt attachment point adapted to receive one of a seat belt retention assembly and a seat belt buckle assembly; a translation mechanism coupled to the seat belt attachment point and adapted to translate the seat belt attachment point one or more of forwards and downwards with respect to the interior structure (e.g., the seat) of the vehicle responsive to a seat back of the vehicle being reclined. Optionally, the translation mechanism includes a mechanical linkage coupled between the seat back and the seat belt attachment point. Alternatively, the translation mechanism includes an electronic actuator coupled between the seat back and the seat belt attachment point.

Abstract: A vehicle seating system including a mounting assembly; a first slide assembly configured to move linearly relative to an adapter plate; a first drive motor mounted to an under-plate of the first slide assembly, the first drive motor being configured to selectively move the first slide assembly in a liner motion parallel to a longitudinal axis of the adapter plate; a swivel assembly configured to swivel relative to the first slide assembly, wherein the swivel assembly includes an over-plate mounted to a swivel post that rotatably engages the first slide assembly; a second slide assembly configured to move linearly relative to the over-plate; and a second drive motor engaging a seat pan of the second slide assembly and being configured to move the second slide assembly in a liner motion parallel to a longitudinal axis of the seat pan.

Abstract: A vehicle seat control device includes a collision prediction part that predicts a collision direction of a collision occurring in a vehicle, a first driving part that rotates a vehicle seat around an axis of the vehicle in a substantially upward/downward direction, and a controller that controls the first driving part such that a direction of the vehicle seat is changed to an opposite direction with respect to the collision direction on the basis of the predicted collision direction.

Abstract: A vehicle seat arrangement in a vehicle is disclosed. The vehicle seat arrangement comprises a vehicle seat with a back portion and a seat portion, said seat portion comprises a front section, adapted to support legs and knees of a user, and a rear section adapted to support the user's weight. The rear section of the vehicle seat comprises a deformation unit adapted to reduce the force exerted on the user during a crash, the force being absorbed through plastic deformation of a deformation portion. The deformation portion is adapted to deform with a linear deformation property of the energy absorption, after a force threshold is exceeded. A vehicle comprising such a vehicle seat arrangement, and a method used in said vehicle seat arrangement are also disclosed.

Abstract: A safety belt device configured for a vehicle may include a belt driving device disposed on a seat, connected to a waist belt in a state in which an occupant wears a seat belt, and moving the waist belt in a predetermined direction to allow the waist belt to wrap around the occupant's waist when the waist belt is positioned at a rear side and to allow the waist belt to be caught between an ankle and the waist of the occupant when the waist belt is moved forward thereof; and a controller receiving a signal generated according to an occurrence of a vehicle collision and controlling the belt driving device upon receiving the impact signal to allow the waist belt to be moved from the rear to the front.

Abstract: A method for adapting a seating position of an occupant of a vehicle in a collision of the vehicle 100 with a foreign object. The method includes a step of providing an adjustment signal, which causes a change in the seating position from an upright position to a lying position, to an interface to a seat device of the vehicle using a collision signal that indicates an imminent underride situation of the vehicle, and using a position signal that indicates a seating position of the occupant, and the provision takes place if the position signal indicates the upright position, and the provision does not take place if the position signal 108 indicates the lying position.

Abstract: A method for adjusting a vehicle seat onboard a vehicle is provided. The method obtains vehicle status data, by a processor communicatively coupled to a plurality of sensors onboard the vehicle; detects a current actuation state of the vehicle seat based on the vehicle status data, by the processor, wherein the current actuation state comprises at least one of a user input actuation state and an emergency actuation state; calculates seat adjustments, by the processor, based on the current actuation state; and actuates the vehicle seat based on the seat adjustments, via an electromagnetic vehicle seat rail device communicatively coupled to the processor.

Abstract: A vehicle seat includes a back frame, a side frame, and a slider. The side frame includes a first frame member configured to couple the back frame and the slider, a second frame member disposed on one side of the first frame member in a seat width direction and configured to couple the back frame and the first frame member, and a third frame member disposed on the other side of the first frame member in the seat width direction and configured to couple the slider and the first frame member. The side frame is provided such that the first frame member, the second frame member and the third frame member are arranged in the seat width direction at least in a portion between the back frame and the slider.

Abstract: An energy and shock absorbing device for a child car seat comprises a seat (1), and a base (2) positioned below the seat (1) and used for supporting the seat (1), the seat (1) being slidably arranged on the base (2). A limit block (22) is formed on the base (2) and located in front of the seat (1) in a path along which the seat (1) slides relative to the base (2). Energy absorbing material (4) is arranged between the limit block (22) and the seat (1), and is compressed to deform when the seat (1) slides towards the limit block (22). When a car encounters a collision or emergency brake, the seat (1) moves relative to the base (2) due to inertia, and the energy absorbing material (4) is squeezed to deform so as to provide a buffering and shock absorbing action.

Abstract: A seating device for connection to a movement mechanism includes at least one seat and a fastening flange. The fastening flange has at least one flange clamping receptacle, and the seat has at least two seat clamping receptacles for connection to the fastening flange. At least one clamping device is provided, which extends in the direction of a clamping axis. The flange clamping receptacle is arranged in the direction of the clamping axis between two of the at least two seat clamping receptacles. The clamping device passes through the two seat clamping receptacles arranged on either side of the flange clamping receptacle and clamps them together in the direction of the clamping axis.

Abstract: Various examples for controlling sway of a furniture that is suspended in a vehicle are disclosed herein. In addition to the suspended furniture, the vehicle can include sway control devices operatively connected to the suspended furniture. The sway control devices can be connected to the suspended furniture via sway lines. The sway control devices can be controlled to adjust the rates that the sway lines are let out or retracted. As a result, the vehicle can control how much the suspended furniture sways.

Abstract: A back frame attachment structure, wherein a hack frame includes a pair of side frames, wherein a lower end portion side of the side frame is attached to an upper portion of a lower arm member whose lower portion is fixed to a vehicle body side member, wherein the lower arm member includes two plate-like members superimposed with each other in a seat width direction, the upper portion and the lower portion being connected to each other by a front connection portion and a rear connection portion which are separated by a through-hole, and wherein, when a large load is applied to the back frame, the two plate-like members are configured to absorb energy by being deformed to be separated from each other in the seat width direction by a compressive load in an upper and lower direction generated in the front connection portion or the rear connection portion.