Abstract: The present disclosure provides a surround type baby bath seat, including: a seat main body, two armrests, and a locking mechanism. The seat main body includes a base, a middle supporting column located at a front end of the base, and a backrest seat located at a rear end of the base. One end of each armrest is rotatably connected to the backrest seat, and the other end of the armrest is detachably connected to the middle supporting column through the locking mechanism. The surround type baby bath seat is easy to use. The button is arranged at the front end, so that a baby cannot touch the button, thus further improving the safety.

Abstract: A device for restraining a passenger in a relaxed position for a vehicle seat and a method for controlling the device are configured such that when a seated passenger in an autonomous vehicle enters a relaxed mode, and thus is seated in a relaxed posture in the vehicle seat, and when a vehicle speed is greater than or equal to a predetermined speed, the device automatically operates such that legs of the seated passenger can be restrained, thereby effectively protecting the passenger in the relaxed position if an accident occurs. The device includes a rod member coupled to a seat cushion and configured to have a variable length; and a support foam connected to one end of the rod member and positioned in front of the seated passenger to restrain the legs of the seated passenger.

Abstract: Pet carriers, car seat frames, pet strollers, assemblies of pet carriers with car set frames or pet strollers, and systems comprising the foregoing are provided.

Abstract: A child seat for a vehicle is configured for holding a child within an interior compartment of the vehicle. The child seat includes a climate arrangement adapted for effecting a climate for the child when positioned in the child seat. The climate arrangement includes a power connection interface connectable to a power source. The climate arrangement further includes a data connection interface connectable to a vehicle climate control module and adapted for receiving climate control information from the vehicle climate control module for effecting the climate for the child when positioned in the child seat.

Abstract: A lateral shock absorber is provided and includes a protective fender and a locking mechanism. The protective fender is pivoted to a base of a child car safety seat and pivotally switchable relative to the base. The locking mechanism is for selectively engaging with the protective fender to restrain the protective fender from switching to an unfolded state or disengaging from the protective fender to allow the protective fender to switch to the unfolded state when the protective fender is located in a folded state. The locking mechanism includes a locking assembly and an abutting block. The locking assembly is driven to a locking state for engaging with the protective fender when the abutting block is pressed downwardly. The locking assembly is driven to a releasing state for disengaging from the protective fender when the abutting block is not pressed. Besides, a related child car safety seat is also provided.

Abstract: A lock assembly for use with an inversion apparatus includes a ratchet plate, a position lock pawl, and a safety lock pawl. The ratchet plate is operatively connected to a first tube portion and is accessible through a slot in a second tube portion of the inversion apparatus' securing assembly. The position lock pawl is pivotally connected to the second tube portion to selectively engage the ratchet plate through the slot. The safety lock pawl is pivotally connected to the second tube portion. The safety lock pawl does not engage the position lock pawl when the user support is in the loading position and is configured and arranged to pivot relative to the second tube portion as the user support moves from the loading position into the inverted position to engage the position lock pawl.

Abstract: A system includes an adapter and a lock. The adapter includes a flexible collar and an attachment structure. The flexible collar is configured to at least partially surround a portion of the wheelchair such that the flexible collar engages the portion of the wheelchair and aids in preventing rotation of the adapter relative to the portion of the wheelchair. The attachment structure has a first arm attached to and extending from the flexible collar and a second arm attached to and extending from the flexible collar. The lock includes a body and a mounting platform attached thereto. The body of the lock is configured to engage the attachment structure to aid in maintaining the flexible collar in a closed position. The mounting platform has one or more coupling mechanisms attached thereto for use in removably mounting one or more accessories to the system.

Abstract: Passenger restraint systems are provided. The restraint systems can include: a passenger seat supported by a frame; a restraint bar pivotably attached to the frame; and at least one piston operably engaged between the restraint bar and the frame. Restraint system pistons are provided. The pistons can include: a central chamber housing a piston head and rod; a fluid reservoir in fluid communication with the central chamber; and at least one electromechanical valve operable between an open and a closed position. Methods for restraining a passenger within a seat are also provided.

Abstract: A lateral shock absorber includes a protective fender pivoted to a base of a child car safety seat and a locking mechanism disposed on the base. The protective fender is pivotally switchable between a folded state or an unfolded state. The locking mechanism is for selectively engaging with the protective fender to restrain the protective fender from switching to the unfolded state or disengaging from the protective fender to allow the protective fender to switch to the unfolded state when the protective fender is located in the folded state. The locking mechanism includes a locking assembly, an abutting component and an abutting block connected to the abutting component. The locking assembly engages with the protective fender to restrain the protective fender from moving, and the abutting component is driven by the abutting block to disengage the locking assembly from the protective fender when the abutting block is pressed downwardly.

Abstract: An assembly for a vehicle includes a first pillar and a second pillar spaced cross-vehicle from the first pillar. The assembly includes a crossbar movably supported by the first pillar and the second pillar. The crossbar is movable along the first pillar and the second pillar from a raised position to a lowered position. The assembly includes an airbag supported by the crossbar.

Abstract: An assembly for a vehicle includes a first seat and a second seat. The assembly includes a crossbar positioned between the first seat and the second seat. The assembly includes an airbag supported by the crossbar. The assembly includes a controller programmed to position the crossbar in a raised position in response to a detected occupant egress.

Abstract: A ride vehicle for an attraction of an amusement park includes a ride seat, a pivot adapter configured to rotate relative to the ride seat, a gear of the pivot adapter comprising a first set of teeth, a passenger restraint piece coupled to the pivot adapter and configured to rotate with the pivot adapter between a closed and an open position, and a cap having a second set of teeth. The cap is configured to be positioned to engage the gear of the pivot adapter such that the second set of teeth of the cap engages with the first set of teeth of the gear, and engagement between the second set of teeth and the first set of teeth substantially blocks movement of the pivot adapter relative to the ride seat in a rotational direction.

Abstract: A vehicle includes a seating assembly attached to a vehicle interior. A seat is rotationally operable relative to a seatback. A retention device is selectively positionable in a stored position or a cargo storage position and extends between the seatback and a floor area disposed adjacent to the seating assembly. The seat is selectively positionable in a seating position or a stadium position. The retention device in the cargo storage position, the seat in the stadium position, and a floor at least partially define an enclosure configured to secure cargo to the floor and the seat.

Abstract: The present disclosure relates to an occupant support element that may have at least one structural support element. Further, the present disclosure relates to a vehicle seat that may have such an occupant support element.

Abstract: A vehicle seat belt device includes: an anchor part configured to be provided at a vehicle seat or a vehicle body on a first side in a width direction of the vehicle seat, and to displace a lower end portion of a buckle device to a vehicle front side by being deformed by a load applied from a lap belt to the buckle device at a time of vehicle collision; and a buckle rotation mechanism configured to include a guide part that is provided at the vehicle seat or body on a vehicle downward side of the buckle device and inclined downward toward the vehicle front side, and a pull-in part that connects the guide part and an upper portion of the buckle device and is slidable along the guide part, and to rotate the buckle device to the vehicle front side and downward side due to the displacement.

Abstract: An easy to operate sleep support frame for travelling is disclosed. The support frame includes a movable and curved chest rod which can move from a passenger's chest to the bottom of the seat; a chest cushion connected with the chest rod; and a headrest connected with the chest rod. The headrest can be placed in the back of the front seat or above the chest rod. The chest rod includes a circular arc segment with meshing gear teeth on the inner circular arc side of the chest rod. One end of the chest rod goes through the driving gear box under the seat to be driven by a driving gear box. The passenger can press a button to drive motors to raise chest cushion, and press the button to lower the chest cushion to be close to the seat bottom if the chest cushion is not used.

Abstract: This seat includes a guard-rail able to occupy a lowered first extreme position and a raised second extreme position, and means for locking the guard rail when it is in a lowered position. The locking means include a bistable electromagnet provided with a rod that is able to move between a stable first position in which the rod allows the guard rail to lock in the lowered position by interposing an obstacle in the upward path described by a guard rail element to pass from the lowered position to the raised position, and a stable second position in which the rod allows the guard rail to unlock so that it can be moved into the raised position by moving the obstacle away from the upward path described by the guard rail element.

Abstract: A safety bow assembly for a child seat comprises: a bow body that has opposite first and second ends; first and second connecting parts that are connected to the child seat, the first connecting part defining an accommodating space and having a side wall; and an engaging lever that is connected movably to the side wall, that is formed with an engaging element facing the accommodating space, and that is movable relative to the side wall between a first position, in which the engaging element is adapted to engage releasably a coupling part of the child seat, and a second position, in which the engaging element is adapted to be disengaged from the coupling part.

Abstract: A passenger restraint including a buckle, a locking arm, a power supply, a bracket, a mount, and a rod. The buckle has a button capable of being depressed. The locking arm has first and second extensions extending outwardly therefrom, and first and second prongs extending downwardly from the first and second extensions, respectively. The buckle includes an opening arranged to receive the first and second prongs. Furthermore, there is a bracket secured to the locking arm, a mount having first and second mount sides and first and second mount side fastening means. The power supply is secured to the mount and the bracket is secured to and pivotable about the mount via first and second mount side fastening means. The locking arm is in an open position but when an electrical signal is applied the locking arm extends downwardly into the opening of the buckle into a closed position.

Abstract: An upright sleep support system incorporates a head cushion having a face relief aperture to receive the eyes, nose, mouth and chin of a passenger placing his or her face against the head cushion with a hinged support structure for angular adjustment, sleeves that open in front to support the passengers arms, and a chest cushion on the back of the device. The chest cushion receives the passenger's chest in a forward leaning position. The head cushion is deployable from a backpack and the chest cushion is integrated into the back of the backpack.

Abstract: A supplemental prisoner restraint system is mountable to the frame of a police car to secure a prisoner in a seated position. The supplemental restraint system includes a mounting plate that is secured to the frame, a restraint bar that is pivotally supported on the mounting plate for movement between a raised inoperative position and a lowered operative position, and a locking mechanism that secures the restraint bar in any selected lowered position. An actuation lever selectively releases the locking mechanism to raise the restraint bar for release of the prisoner. A spring mechanism biases the restraint bar toward a raised position so that the restraint bar can be moved upwardly while the police officer is outside of the police vehicle. The supplemental restraint system can also be utilized in an office environment in conjunction with a seating device to temporarily secure a prisoner while being processed.

Abstract: A portable child-restraining safety seat assembly and method of use includes providing a sub-seat with a body defining a secured seating area sized to securely hold a child or smaller-than-average adult human and a fixed-shape rotatable restraining member mechanically coupled to the body and having an open position where the seating area is unobstructed and a closed position where the seating area is obstructed by the restraining member. The seat further includes a first anchor member and a second anchor member each having a first end mechanically coupled to the body and a second end selectively attachable to corresponding anchoring points of functional primary seat.

Abstract: A multi-purpose seat for a child includes a seat body, a protecting sheet, a shoulder strap and an encircle belt. The seat body has two upper straps respectively defined on two sides of the seat body. The protecting sheet has two upper buckles which are connected with the two upper straps respectively. The protecting sheet has two through holes for passing through two legs of a child respectively. Two ends of the shoulder strap are assembled on a rear side of the seat body and two ends of the encircle belt are assembled to the shoulder strap. Under this arrangement, a user carries the child sitting on the seat body by the shoulder strap; besides, the seat body is fixed on a car seat and the encircle belt is encircled the car seat, so that the child sits on the seat body securely.

Abstract: This vehicle includes a guard rail intended to occupy a lowered position delimiting a closed space that prevents a passenger from falling and a raised position in which the guard rail opens up the space at the front of the vehicle to allow one or more passengers to board and disembark. The vehicle also includes means for locking the guard rail in the lowered position, wherein the locking means includes a locking lever having a first end provided with a bearing surface and with a blocking surface, the bearing surface and the blocking surface delimiting a first housing intended to accommodate part of the guard rail, and a second end in which a locking member designed to immobilize the second end of the locking lever is intended to engage when the guard rail is in the lowered position.

Abstract: The device comprises a tubular shaped cushion (or pillow) encased in a cover having a pair of opposed flaps for wrapping about a cushion and connecting to one another. The tubular cushion would be situated perpendicular to a front, free edge of the cushion so as to prevent a child from accidentally rolling off that edge and onto the floor below. For fuller cleaning, the cushion within that tubular component can be removed for washing the exterior and replaced/reinstalled thereafter.

Abstract: An apparatus is provided for facilitating sleeping while seated. Typically the device includes a headband, which may be a portion of a hat or a cap, and the device includes a tensioning device made of a flaccid or pliant material such as a ribbon or flexible cord. A user wears the headband and the tensioning device is positioned between the user's back and the backrest of a chair. With any forward motion of the person's head a tension is increased in the tension tie and that limits the forward motion of the person's head and facilitates sleep.

Abstract: The aircraft passenger seat headrest (20) includes a carrier (21) and a helmet (22) for at least partially housing the head of the passenger. The helmet is attached to the carrier and is movably mounted in relation to the carrier (21). Said helmet includes a body and at least one portion (32, 34) that is movably mounted onto the body to extend the latter.

Abstract: The invention relates to a delordosation device for users of a rehabilitation appliance, in particular for the verticalization of a sit/stand exercise machine or a wheel chair with a seating area and support aids for a user, the seating area supported in a swiveling manner swiveling for verticalization. To avoid hyperlordosis while patients with a restricted mobility are being straightened up in rehabilitation measures or a verticalization in a sit/stand exercise machine 1 or wheel chair, it is provided that the seating area is supported in a swiveling manner, and at least a portion of the seating area is mounted in a movable manner. Thus, a pelvis rotation can be initiated during verticalization, whereby hyperlordosis is avoided.

Abstract: A multi-point seat restraint system configured to provide restraint for a passenger superposed a seat in a supine position. The multi-point seat restraint system includes a plurality of upper belts having a first end anchored behind the seat back of the associated seat. A junction bar is further included wherein the junction bar is configured to releasably secure the upper belts proximate the second end of the plurality of upper belts. The junction bar further includes a first belt portion and a second belt portion integrally secured thereto. The first belt portion and second belt portion and configured to be releasably secured to a first lower belt and a second lower belt. The first lower belt and second lower belt are retractably mounted to the floorboard of the vehicle. In an alternative embodiment of the second lower belt, the second lower belt includes a first portion and a second portion being angularly mounted.

Abstract: The present invention relates to a seat for a chair-lift installation composed of a seating part (1) and a back (2) and further including a support arch (3) intended to be connected to a carrier cable, a safety bar (4) mounted to tilt with respect to the seat between a lowered position and a raised position and provided with a horizontal bar (5). According to the invention, the seat includes, at least one of the side flanks a tilting device (8) arranged so that the horizontal bar (5) of the safety bar (4) makes, in a side plane, a non circular motion facilitating the passage from the lowered position to the raised position and vice versa.

Abstract: A stroller seat pod includes a seat bottom having front, left side, right side, back, top, and underside; seat back having first piece and second piece, first piece and second piece slidably connected to one another; first piece of seat back being hingedly connected to seat bottom such that seat back and seat bottom have first seat position and second seat position, wherein, in first seat position, seat back and seat bottom have open configuration for sitting, and wherein, in second seat position, seat back and seat bottom have a closed configuration for storage; second piece of seat back being connected to first piece of seat back such that first piece of seat back and second piece of seat back have first backrest position and second backrest position, wherein, in first backrest position, first piece of seat back and second piece of seat back are extended relative to one another to increase seat back area for sitting, wherein, in second backrest position, first piece of seat back and the second piece of seat

Abstract: A sleep support system incorporates a head cushion having a face relief aperture to receive the nose and chin of a passenger placing his face against the head cushion and a chest cushion attached to the head cushion with a hinged support structure for angular adjustment. The chest cushion receives the passenger's chest in a forward leaning position. Suspension arms are attached to the hinged support structure and extend over the passenger's shoulders for attachment to a seat back frame.

Abstract: An ejection seat arm flail injury prevention apparatus comprises a pair of rigid support arms on each side of the ejection seat that deploy outwardly to support a semi-rigid backstop substantially behind the ejection seat occupant. When the ejection seat is propelled out of the aircraft and is subjected to the windblast, the occupant's arms are allowed to flail in a rearward direction in the windblast until the occupant's arms impact the semi-rigid backstop. The backstop is semi-rigid in that it deforms sufficiently to enable the rearward motion of the occupant's arms to be arrested without impact injury, yet is sufficiently rigid to prevent the occupant's arms from rebounding off the backstop or striking the rigid support arms.

Abstract: An improved car seat pressure deceleration controller apparatus for providing in pressure through harness means positioned across the front chest of a seated occupant of a passenger vehicle, movable upon impact of the vehicle by activation of electric solenoid means connected by cable means extended over pulley means to engage an upper portion of the harness means, and to move the harness means in an elevated position to encompass over the head of the occupant, and the harness means being connected along its lower portion to tension belt means, controlled by gearbox drive means and motor means to provide deceleration controlled movement to the harness means to decelerate the movements of the harness means, and programmable computer and processor means to determine the position of the harness means to determine the deceleration control for the harness means.

Abstract: A safety device used in combination with a child seat assembly is provided to solve the problems about complicated structure and risk for the children. The safety device includes a bracket, a first wing and a second wing pivotally connected to the head portion of the bracket, a flexible piece cooperating the first and second wings, a locking piece releasably engaged with the first and second wings. When one of the wings is pivotally rotated, both of the wings will be synchronously rotated to a vertical or horizontal state.

Abstract: An amusement device seat includes a seat and a bar construction, moveable between an access position to a passenger fixation position, in which the passenger is fixed in the seat. The assembly further includes a locking device to lock the bar construction at the passenger fixation position. The locking device includes an engagement device to engage and disengage with the bar construction and a guide for the engagement device allowing the engagement device to assume an engagement position between the access position and the passenger fixation position, and allowing the engagement device and the engaged bar construction to move between the engagement position to the passenger fixation position. The locking device includes a fixation device for fixing the engagement device and the engaged bar construction at multiple passenger fixation positions along the guide to accommodate passengers of different sizes.

Abstract: A seat for amusement apparatus including a support and means for immobilizing the user on the support. The immobilizing means comprise at least one support in front of the user and opposing means suitable for acting on the user's back. The opposing means comprises an arm which can move between a lowered position in which the user can sit down on the support and a raised position in which one end of the arm abuts against the user's back. The seat may optionally have a motorcycle shape and include handlebars and retractable leg extensions projecting from each side of the seat for maintaining a user's legs in a crouched motorcycle riding position.

Abstract: A head restraint for a vehicle child seat includes an elastic head band, at least two head support straps, a first attachment strap and a second attachment strap. An inner perimeter of the elastic head band is sized to firmly fit around a child's head. One end of each head support strap is attached to one side of the elastic head band and the other end is attached to an opposing side of the elastic head band. One end of the first attachment strap is attached to one side of the elastic head band and one end of the second attachment strap is attached to an opposing side of the elastic head band. First and second releasable attachment devices are formed on the first and second attachment straps. First and second mating releasable attachment devices are preferably attached to opposing sides of a vehicle child seat.

Abstract: The invention relates to an amusement device seat assembly, comprising a seat and a bar construction, moveable between a access position to a passenger fixation position, in which the passenger is fixed in the seat. The assembly further comprises locking means to lock the bar construction at the passenger fixation position. The locking means comprise engagement means to engage and disengage with the bar construction and a guide for the engagement means allowing the engagement means to assume an engagement position between the access position and the passenger fixation position, and allowing the engagement means and the engaged bar construction to move between the engagement position to the passenger fixation position. The locking means comprise fixation means for fixing the engagement means and the engaged bar construction at multiple passenger fixation positions along the guide to accommodate passengers of different sizes.

Abstract: An inventive protective device for developing infants is provided, where the protective device is comprised of a triangularly-shaped, padded front portion conforming to the infant's chest, a triangularly-shaped, padded back portion conforming to the infant's back, and a crotch portion connecting the front and back portions. The front and back portions are each constructed of a plurality of tapering tubular-shaped structures extending from the top edge towards the crotch area, with the crotch portion lacking any padding. The inventive protective device fills the gap between the infant's torso and any seating enclosure into which the infant is placed, so as to reduce the chance for injury due to sudden and rapid movement against the enclosure.

Abstract: A safety guard mounting/dismounting device for a baby seat is provided. The safety guard mounting/dismounting device comprises a mounting seat fixed to leg tubes of the baby seat, a connecting member whose one end being fixed to the safety guard and the other end being inserted into the leg tube of the baby seat, and an engaging assembly disposed in the connecting member which includes an engaging device and a restoring spring, wherein the engaging device includes a hook like portion which is movable between an engaging position where it may engage with the leg tube and a disengaging position, and the restoring spring is arranged such that it may bias the hook like portion of the engaging device toward the engaging position.

Abstract: A lap bar assembly with dual lap bar and grab bar functions. The assembly includes a locking mechanism and a lap bar pivotally mounted to the locking mechanism via a support shaft. The locking mechanism includes a ratchet wheel affixed to the support shaft. A pawl is pivotally supported within the locking mechanism on a pawl support axle parallel to and spaced apart from the lap bar support shaft. The locking mechanism includes a trip cam pivotally attached to the lap bar support shaft. The locking mechanism includes a cam follower that selectively engages the pawl. The locking mechanism is configured to automatically first lock in a first position (or ride position) with the pawl engaging teeth of the ratchet wheel and then second lock in a second position (or released position) with the pawl engaging the ratchet wheel on an uplock surface spaced apart the ratchet teeth.

Abstract: A retention device is assembled to a child containment device and is rotatable about each side of the retention device. In particular, the retention device (e.g., a tray or toy bar) includes a first engagement portion adjacent a first end of the retention device and a second engagement portion adjacent a second end of the retention device. The child containment device includes a seat portion, a first frame member adjacent a first side of the seat portion, and a second frame member adjacent a second side of the seat portion. Mating engagement portions are disposed on each frame member and engage the engagement portions of the retention device. To rotate the retention device relative to the child containment device, one of the engagement portions is disengaged from the respective mating engagement portion, and the retention device is rotated relative the other engagement portion.

Abstract: An occupational support chair system and method that provides frontal support to a user. The support chair system includes a lower support frame composed of a dual section hydraulic frame and an upper support frame. The upper support frame can be configured as a spinal column associated with a number of individual locking segments. The upper support frame further includes a breast support and a removable chin support in order to provide frontal support to the user. An adjustable swivel seat can be attached to the upper support frame to relieve stress and fatigue stemming from prolonged periods of standing. The support chair system further includes a stabilizing base segment, which comprises retractable wheels and a housing for batteries, electrical and computer components.

Abstract: A portable support for providing support for the head of a seated individual includes an elongated pillow having an enlarged upper end portion and a lower pillow end portion. Connector structure is provided to position the larger pillow end portion above the shoulder of a seated individual.

Abstract: A safety restraint system for a vehicle includes a safety net stored in a wall mounted cartridge wherein a guiding bar, securable in a locking mechanism, steers the safety net away from the wall and provides a secured space around a bunk. The safety net is secured adjacent to the bunk using a locking bar. The safety net may be provided with one or several safety belts at least partly attached to the safety net.

Abstract: A retaining system for amusement rides, more particularly roller coasters, carrousels or the like has a chair member for a passenger to sit on and which comprises a seat and a back rest and furthermore a retaining device with at least one locking part able to be moved between at least one getting on position and at least one retaining position, the retaining device possessing an essentially U-like retaining part, which at least to a major extent surrounds the pelvic region of the passenger to be secured, the retaining part being inclined in an anthropometrically optimized plane, which is inclined in a range of 30° to 60°, more particularly 40° to 50°, preferably approximately 45° to the horizontal and/or the seat.

Abstract: A guest lap bar locking assembly for releasably positioning a lap bar within a water ride at an entertainment park includes a lap bar locking assembly that is dimensioned and configured to provide continuously variable position locking of the lap bar.

Abstract: A passenger restraint apparatus for funfair rides is disclosed. It includes: a restraint body (30) having a leg support surface (31) which is adapted to be placed on the thighs of the passenger, and a first guide lever (40) which is fixed at its first end to the restraint body and which is pivotably coupled with its second end in the floor region in front of a passenger seat of a funfair ride in such a way that the restraint body can be pivoted in relation to the passenger seat about a first lower axis (61) which is disposed in transverse relationship to the longitudinal axis of the thigh of the seated passenger from an opened position into a closed position, characterized in that the first guide lever is coupled at its first end to the restraint body pivotably about a first upper axis (34) which is disposed in parallel relationship with the first lower axis and arranged adjacent to the first guide lever is a second guide lever (50) which i.

Abstract: Child restraint for a vehicle with a rectangular flexible sheet, a pair of attachment rings, a mating device, a seatbelt mating device, and a rigidifying strip. The attachment rings are attached to one edge of the flexible sheet so that the rings align with the back seat center and either right or left female seatbelt buckles found in most passenger cars. The seatbelt mating device capable of structurally uniting the right and left shoulder harnesses in the middle of the backrest in cars without center shoulder harnesses.