Abstract: A child safety restraint system is disclosed for use on private and commercial aircraft. The invention includes a removable, portable strap assembly for safely securing automotive child safety seats to aircraft seats and frames in compliance with present and pending federal aviation safety regulations. A system is disclosed which includes a pair of anchors attached to the front beam on an aircraft seat. A pair of connectable and adjustable belt assemblies are attached one each, to the anchors. One belt assembly is passed through the frame of a child safety seat and connected to the other belt assembly. The combined length of the connected belt assemblies is then adjusted to place the system in tension, and thereby secure the child safety seat to the aircraft seat. The resulting system provides significantly improved safety for children over the use of the lap belts to secure child safety seats in commercial aircraft.

Abstract: A head restraint for a passenger of a vehicle including a seat with a seat back, a helmet pivotally secured to the seat back and having an interior for receiving a human head therein, and an inertia harness connected to the helmet for restricting relative movement of the helmet upon application of forces beyond a desired level to the vehicle. A universal joint secures the helmet to the seat back. The helmet includes a rigid outer shell, a resilient member layer affixed to an interior surface of the outer shell, a packing layer affixed to an interior surface of the resilient member layer, and a pliable layer affixed to an interior surface of the packing layer. The resilient member layer includes a plurality of springs. The packing layer includes a bubble wrap material or a plurality of randomly disposed foam elements. The pliable layer includes a layer of silicone material lined around the surface of the packing layer.

Abstract: An improved kit for converting a non-reclining wheelchair into a reclining wheelchair providing replacement side rails which improve patient comfort by preventing the side rail from impinging upon the patient. The replacement side rails are affixed to the frame of the wheelchair after the original side rails are removed. The replacement side rails bend outward to avoid the location of the patient's axilla when the wheelchair is reclined.

Abstract: A seat occupation is judged with a load detector arranged at a seat for detecting a load on the seat and a seat condition detection means arranged at the seat for providing discrimination between an adult and a child seat on the seat. A judging means judges that a child seat is set on the seat when the load detection means detects the load corresponding to that of adult and the seat condition detection means detects that the child seat on the seat. The seat condition detection means may comprise an electrostatistic sensor for detecting a capacitance that is increased by the body of the passenger or a pressure detection element array arranged on the sitting portion. The detected capacitance or the pressure distribution is different between a child seat and an adult or a passenger.

Abstract: A seat apparatus is provided for a vehicle comprising a first mechanism for moving a seat horizontally relative to the floor of the vehicle and a second mechanism movably mounted to the first mechanism for moving the seat vertically relative to the floor of the vehicle. The second mechanism includes at least one link and a motor drive assembly operatively associated with the link to move the seat vertically. The seat apparatus further includes a third mechanism for moving a seat belt to adjust for vertical and horizontal movement of the seat in order to insure that the seat belt will remain stationary relative to an occupant seated on the seat. The third mechanism is responsive to the motor drive assembly for moving the seat belt simultaneously with vertical movement of the seat.

Abstract: A head and neck restraint device, worn by a driver when operating a high performance vehicle, which controls the driver's head from snapping forward and maintains the driver's head, neck and spine in general alignment in the event of a frontal crash. The device includes a pair of anchor straps that are worn along the back of the driver and have first end which connects to the driver's helmet by use of hooks and tethers, and second ends which extends between the driver's legs for connection to a seat belt assembly. A chest strap and a waist strap are attached to the anchor straps for keeping the anchor straps separated at a predetermined distance. When exiting the vehicle, the driver unlatches a standard vehicle seat belt assembly and the restraint device is simultaneously released from the vehicle. Since the restraint is neither rigid nor bulky, the driver can quickly exit the vehicle unrestricted by the device.

Abstract: A motor vehicle seat has longitudinal adjustment tracks, a device for adjusting elevation and inclination, and a seatbelt buckle mounting, which has a first part that is coupled to an upper track of the longitudinal adjustment tracks and a second part that is coupled to the seat part so as to be capable of pivoting and that is guided on a longitudinal guiding surface of the first part so that its position may be freely shifted. The first part has a catch toothing, which is embodied so as to accept a catch projection provided on a second part, such that the coupling point of the second part and its catch projection are arranged on different sides of the first part. The guiding surface is provided on only one side of the first part, and the opposing surface of the second part, which works in concert with it, is held in contact with the guiding surface by a spring until a load limit of the seatbelt buckle mounting is reached.

Abstract: A seat restraint tensioner for a seat restraint system in a vehicle includes a housing for operative connection to vehicle structure and a movable piston disposed in the housing. The seat restraint tensioner also includes a gas generator operatively connected to the housing for expelling a gas to move the piston. The seat restraint tensioner further includes a spool assembly operatively connected to the piston and for connection to belt webbing of the seat restraint system for pulling-down the belt webbing of the seat restraint system in a linear manner and winding up the belt webbing on the spool assembly as the piston moves.

Abstract: A microphone bearing slider on a diagonal seatbelt member, together with a tethering tape that is positioned along the diagonal seatbelt, from a seatbelt hanger member to the buckle with attachment to the slider, in combination, operate to position the microphone at the same precise location for vocal transmission at each deployment, and to return the assembly to a storage position with no addition attention being required on the part of the communicating person.

Abstract: A seat belt restraint lock for children is disclosed, comprised of an improved female receptacle for a motor vehicle seat belt buckle. The female receptacle consists of a main body, of a generally rectangular, box configuration. A plate located on the top surface of the main body covers the traditional release button. The plate can only be opened by compressing two locking cylinders located on the lateral sides of the main body. The locking cylinders possess spring tension to ensure that a child cannot open the plate.

Abstract: To avoid a motor vehicle passenger from bending too closely towards an airbag unit disposed in front of the motor vehicle passenger during a braking maneuver before a collision, a clamping device arrests a seat belt as a function of a brake pressure.

Abstract: A head support cooperates with an infant seat or a child seat, in order to render the infant or child more comfortable by supporting the head with padding and a head covering device.

Abstract: A restraint system for protecting occupants in a sleeping compartment of a vehicle having a bunk bed includes at least two flexible straps having one end attached to a selected one of the vehicle or the bunk, and a second end. Attached to the straps is at least one energy absorbent padding in a position relative to the bunk bed for providing restraint and secondary collision protection to a prone occupant. The straps extend from the vehicle over the bunk bed to the second ends. A releasable lock is attached to the second ends for connecting the second ends to the vehicle or bunk. When not in use, the restraint system is conveniently stored so as to provide minimal impact on cab space. A strap retraction means is attached to the vehicle and has the first ends of the straps attached thereto. The strap retraction means is operable to retract the straps when the releasable lock is unlatched whereby the straps collapse into a stored position.

Abstract: A safety harness having a chest strap received over a user's shoulders, a crotch strap received between a user's legs and selectively attachable to the chest strap, and a back panel received against a user's back, the back panel being interposed between the crotch strap and chest strap. The back panel is substantially the width of the user's shoulders and the height of the user's torso to evenly disperse and dissipate forces from sudden movements acted upon a user when the harness is secured to a vehicular seatbelt.

Abstract: A seat belt extension for extending a seat belt while preventing twisting of the seat belt. The seat belt extension includes a first elongate panel having a first end, a second end and a middle portion. The first panel has a generally rectangular configuration. A second elongate panel has four edges, wherein a first, a second and a third of the edges are fixedly secured to the first panel. A pocket is formed between the second panel and the first panel. An insert is inserted in the pocket between the first panel and the second panel. A female portion of a seat belt buckle is fixedly coupled to the first end of the first panel. A male portion of a seat belt buckle, the male portion is fixedly coupled to the second end of the first panel.

Abstract: An occupant restraint system for restraining an occupant in a seating arrangement comprising a vehicle seat wherein the vehicle seat has a seat frame, a seat bottom coupled to the frame, and a seat back coupled to the seat frame wherein the seat back has a first edge and a second edge, the occupant restraint system comprising a first anchoring assembly for being attached to the vehicle seat adjacent to the first edge of the seat back, a second anchoring assembly for being attached to the vehicle seat adjacent to the second edge of the seat back, a first elongate flexible member with a body portion extendibly and retractably retained on the first anchoring assembly, a mechanism for coupling a portion of the first elongate flexible member to the second anchoring assembly whereby the body portion of the first elongate flexible member traverses the seat back from the first edge to the second edge, a first buckle element coupled to the body portion of the first elongate flexible member, a first corresponding buckl

Abstract: A wheelchair for the handicapped is provided having an arm-rest hinge block including a back half-block fastened to an upright back of a structure and carrying a pivot pin. An arm-rest half-block mounted to pivot on the pivot pin includes a bore that rotatably receives a cylindrical shank of an angled arm-rest so that the shank is locked in position when the angled arm-rest occupies a substantially horizontal plane or a substantially vertical plane.

Abstract: A headrest for vehicle seats, has a head cushion and two side cheeks which are assigned to the head cushion and which, in the in-use position, project laterally on the head cushion beyond the cushion front. In their not-in-use position, the side cheeks can be swivelled into the contour of the head cushion. In order not to impair the cushion contour of the head cushion designed under aspects of safety and comport by the use of the side cheeks, the two identically constructed side cheeks are mirror-symmetrically swivellably arranged with respect to the vertical center line of the head cushion such that, in the not-in-use position, they cover the back side of the head cushion.

Abstract: A pelvic stabilization device attachable to a wheelchair includes a pelvic support brace and an apparatus for attaching the pelvic support brace to a wheelchair. A pivot apparatus provides movement of the pelvic support brace with respect to the apparatus for attaching the pelvic support brace, the pelvic support brace being pivotable between a first, neutral position and a second, tilted position. A pivot return apparatus is attached to the pelvic support brace to return the pelvic support brace to the first, neutral position from the second, tilted position. A pivot limiting apparatus limits the amount of pivot of the pelvic support brace that is inducible by the pivot apparatus.

Abstract: A shooting harness is described in which a back member is supported by shoulder suspension members from the shoulders and across the upper back region of a shooter. A leg restraining member extends from the back member and includes at least one knee segment positioned to engage at least one of the shooter's legs in the vicinity of the knee with the shooter in a sitting shooting position. The back member and leg restraining member together form a shooter encircling loop that provides a substantially stable brace about the shooter's upper back, torso, and at least one knee to stabilize the shooter in a sitting shooting position.

Abstract: A body-holding device in which a combination comprised of: a main body base suspension fitting, a pair of side-holding arms which hold both sides of a person, a pair of shoulder-holding arms which hold both shoulders of the person, a crotch supporter which supports the person's crotch, a transmission mechanism which links the movement of the suspension fitting, respective holding arms and the crotch supporter, and locking elements which constrain and release the respective holding arms and crotch supporter, is installed on a main body base of the device which is fastened to an automobile seat. The device eliminates heavy labor performed by a person assisting disabled persons such as handicapped persons, persons suffering from illness and elderly persons, etc.; and in addition, the device eliminates heavy labor by assisting the body functions of able-bodied persons, and it also has a body-holding function as a shock-absorbing device or a life-saving device.

Abstract: A divider construction 10 for the back seat 101 of a vehicle 100 wherein the construction 10 includes a contoured generally S-shaped divider member 20 having an enlarged upper portion 22 which rests against the seat back 102, a lower portion 23 which extends in front of and below the seat surface 101, and an intermediate portion 24 which rests on top of the rear seat 101. The divider member 20 is provided with a pair of recesses 26 dimensioned to receive beverage receptacles and is further associated with a protective cover member 30 having both external 33 and internal 35 pockets.

Abstract: The Vehicle Body Armor Support System (V-BASS) significantly enhances the survivability of vehicle crewmembers and occupants in aircraft and ground vehicles from high velocity projectiles such as shrapnel or bullets at minimum weight burden on the vehicle occupants. Current heavy body armor systems weigh 20 to 40 pounds. The majority of this weight is carried on the vehicle occupant's torso and transferred through the occupant's spine to the seat. The Vehicle Body Armor Support System invention allows the direct transfer of the heavy body armor system's weight directly to the seat without burdening the occupant. This invention is comprised of a vehicle platform; an occupant seat supported by the vehicle platform; an occupant armor component carried on the occupant and a support strut configured to be connected between the armored component and the occupant seat to transfer the weight of the armored component from the occupant to the seat.

Abstract: A height adjuster for use with a seat belt comprising: a track mountable to a structural member of a vehicle in a vertical orientation, the member including a portion of a vehicle seat, the track including a plurality of adjustment holes located along its length, a carrier member, manually movable along the track relatively to the adjustment holes, the carrier member supporting a movable pin, having a top and a bottom. The pin is movable from a first position in which it is disengaged from a selected adjustment hole to a second position in which it is located within the selected adjustment hole. A spring biases the pin in a direction toward the back of the track, and an activating member, operatively connected to the pin, moves the pin out of the selected hole to the selected position. A web guide, adapted to receive the seat belt, is mounted to and movable with the slide member.

Abstract: A belt tightening device (100/100') for use with a safety device such as a seat belt buckle: a flexible member (12), such as an anchoring length of seat belt webbing, operatively connected to the safety device (34); a housing (102) including a first opening (110) through which the flexible member loosely extends; first and second relatively movable clamping members (160, 162) for causing a portion of the flexible member extending from the housing to be drawn into the housing thereby shortening the remaining length of the flexible member causing a safety belt operatively attached to or part of the flexible member to become more tightly disposed about a user thereof.

Abstract: A bag-type garment that a child can be slipped into to keep the child's lower body and legs warm. The garment is made by stitching together an outer panel and an inner panel to form an enclosure having an open end. A batting or other material is positioned between the panels for added warmth. Velcro strips are provided along the open end to adjust the size of the opening to help retain the garment on the child. A loop is sewn to the garment to hang the garment. A connecting device is provided to connect the garment to a stroller bar or the like.

Abstract: Vehicle seats are constructed with a seat cushion for supporting the lower body of a passenger and a seat back for supporting the upper body of the passenger. A side holder portion, which is filled with foam material for supporting said passenger at side portions of the upper body, is combined with a backrest portion, which also is filled with foam material for supporting said passenger on the back, such that said side holder portion is integrally and continuously formed with said backrest portion. An opening portion preferably is formed in each of the side holder portions such that said opening portion provides a hole in said side holder portion.

Abstract: A seat belt tensioning apparatus in accordance with the preferred embodiment of the present invention includes, among other elements, (1) a main body portion having a head or top portion at one end and a winding member at the opposite end, and (2) a crank handle being connected to the head or top portion of the main body portion. The winding member of the main body portion has a plurality of winding extensions. In the preferred embodiment, the winding member includes two winding extensions. The winding extensions are sufficiently spaced apart to form a belt reception space to receive a seat belt webbing. After the seat belt is inserted into the belt reception space, the crank handle may then be turned to cause the seat belt to wind around the winding extensions, thereby removing excess slacks in the seat belt.

Abstract: An ergonomic support for maintaining a user in an erect sitting posture, including a seat, a knee brace and a backrest, the position of which are adjustable relative to one another. Also set forth is a self-contained ergonomic chair which includes a frame to be supported on a floor, a seat supported to the frame, a backrest supported to the frame to the rear of the seat, a knee brace supported with respect to the frame to be positioned forward of the seat, and a manual adjustment mechanism operable by a person seated in the chair to adjust the forward and rearward spatial relationships of the seat, the backrest and the knee brace with respect to each other.

Abstract: A patient support system for holding the torso and head of a user upright when sitting in a wheel chair or a chair to prevent the user from falling off of the wheel chair or chair. The patient support system includes a vest harness designed for wear on the torso of a patient user. The vest harness has a neck opening, a pair of shoulder straps, a pair of side regions and a lower edge defining a lower opening. The vest harness has breaks through each of the shoulder straps and slits through each of the side regions of vest harness to define separable front and back portions of the vest harness. The front and back portions are detachably coupled together at the breaks of each of the shoulder straps and along the slits of each of the side regions. A chair structure is provided having a backrest and a seat. The back portion of the vest harness is detachably attachable to the backrest of the chair structure to help hold a patient user upright in the chair structure.

Abstract: An infant and baby seating system comprises a first closure element, second closure element, and connector therebetween detachably fastenable to connect the first closure element and the second closure element, the distance between the two closure elements being adjustable to the size of the user. Securement members may be fastened between the closure elements.

Abstract: A vehicle seat assembly with integrated safety restraint belts includes a bottom frame and a backrest frame. The backrest frame is pivotally connected to the bottom frame by first and second pivot elements. The first and second pivot elements may include motor driven actuator screws for remotely controlling the pivoted position of the backrest frame under power. The bottom frame includes first and second side rails which are anchored to the outer sill panel and the floor panel, respectively, for providing a sturdy mounting arrangement to withstand high loading and stresses during sudden deceleration. The integrated safety restraint belt includes a shoulder strap segment connected to the upper end of the backrest frame, above the first pivot element, and a lap strap segment. A spool, mounted to the bottom frame, plays out and reels in strap material from a concealed segment interposed between the spool and the shoulder strap segment.

Abstract: A buckle latch mechanism for an infant carrier including a buckle latch mechanism for an infant carrier. The buckle latch mechanism includes a slot formed in a frame adjacent the foot end of an infant carrier essentially transverse to the side walls. A generally rigid plastic latch is reciprocally mounted in the frame forwardly of the slot. The latch has a rearwardly extending lower extent beneath the frame movable from a locking position beneath the slot to an unlocked position forwardly of the slot. The latch has an operator controlled upper extent above the frame movable between a locked orientation in proximity to the slot and an unlocked postioned forwardly thereof. The latch has a vertically extending intermediate extent between the lower extent and the upper extent. The intermediate extent has a cylindrical aperture therethrough. A horizontal post is fixedly positioned beneath the upper surface of the frame.

Abstract: The positioning of the buckle plate of an auto driver's safety belt so that it is within reach of the driver without the need to turn attention away from traffic in front of the auto, a dangerous maneuver often needed when the safety belt, through oversight, has to be buckled after the auto is in motion.

Abstract: An airplane passenger restraint system is provided that cooperates with an existing seat belt of an airplane seat where the seat belt has two straps which are releasably coupled together. The existing airline seat is typically equipped with an existing seat belt having a first female buckle end and a first male buckle end. The system includes a second male buckle end for mating connection to the first female buckle end of the seat belt and a second female buckle end for mating and releasable connection to the first male buckle end of the seat belt. A first passenger strap is coupled to the second male buckle end and the second female buckle end and extends therebetween. A second passenger strap is coupled to the second male buckle end and the second female buckle end and also extends therebetween. The system further includes a floatation tube secured around the second passenger strap.

Abstract: An apparatus for anchoring a child seat within a motor vehicle includes an anchorage bar having a pair of child seat connector portions located at the seat bight of a seating unit for a motor vehicle. The seat connection portions are carried by an anchorage bar which is pivotally interconnected to mounting brackets which connect a seat back of the vehicle seat to the floor pan. The anchorage bar is upwardly pivoted.

Abstract: An airplane passenger restraint system is provided that cooperates with an existing seat belt of an airplane seat where the seat belt has two straps which are releasably coupled together. The existing airline seat is typically equipped with an existing seat belt having a first female buckle end and a first male buckle end. The system includes a second male buckle end for mating connection to the first female buckle end of the seat belt and a first passenger strap coupled to the second male buckle end and extending therefrom. A second female buckle end is coupled to the first passenger strap distal from the second male buckle end for mating and releasable connection to the first male buckle end of the seat belt. The first passenger strap extends through the second female buckle end. A third male buckle end is coupled to an end of the first passenger strap distal from the second male buckle end and a second passenger strap is coupled to the second male buckle end and extends therefrom.

Abstract: A chair (10) utilizes a perimeter wall (12) having an internal chamber (14) and an internal member (16) held in the internal chamber (14) to define an internal seating area (18). The internal member (16) is positioned to provide support for an infant's chest and thereby inhibit forward movement. The perimeter wall (12) includes a back wall (22), a pair of spaced apart side walls (24,26) and a front wall (28). The side walls (24,26) and the back wall (22) are positioned to inhibit lateral and backward movement, respectively. The perimeter wall (12) in conjunction with the internal member (16) substantially surrounds and supports an infant in a seated, upright position.

Abstract: A substantially rectangular, vertically-extending divider made of soft compressible material and having a height approximately equal to the height of the rear backrest of a motor vehicle attaches to the rear seat by employing the rear seat center seat belt. A slot at the back of the seat divider receives the center seat belt such that when secured by the seat belt, the soft material of the divider is compressed against the rear seat providing secure retention. The dimension of the seat divider extends forwardly through the interior cabin space between the backrests of individual front seats of the vehicle, and the width of the divider is substantially equal to the space between the front seat backrests. The divider includes a notch at the front bottom corner which receives and rests upon a center console of the vehicle. An internal rigid planar foam core, which extends substantially across the entire side profile of the divider, provides structural integrity to the divider.

Abstract: An anchorage for a belt buckle arranged alongside a vehicle seat in a seat belt system is characterized by the belt buckle being affixed to the anchorage and having a laterally deflectable buckle head. The anchorage has a flexible fitting to which the buckle head is secured and which opposes a deflection of the belt buckle towards the vehicle seat a lesser resistance than away from it.

Abstract: A restraining device for children and primarily infants for use in cooperation with a child seat device having a restraining belt. The restraining device has a pliable body capable of receiving a child therein. A restraining belt receiving member is secured to the pliable body and defines a restraining belt passageway. The restraining belt receiving member is adapted to receive the restraining belt from the child seat device through the restraining belt passageway. An attachment belt is secured to the pliable body for attaching the restraining device to the child seat device. The restraining belt receiving member receiving the restraining belt from the child seat device acts in cooperation with the attachment belt secured to the child seat device to limit the movement of the pliable body and any child received therein.

Abstract: A device to reduce weight or load on the spinal column for seats and the like that comprises two parts, the first being of two curved fins running from the edges of a chairback to adopt the anatomical form of the user's sides from the waist to the axillae, while the second is an elastic vest or corset covering the whole of the trunk from the waist to the axillae and shoulders. The vest secures at its top to the chairback by braces and fasteners or hooks. these braces secure to the back of an upward extension to the chairback.

Abstract: An airplane passenger restraint system is provided that cooperates with an existing seat belt of an airplane seat where the seat belt has two straps which are releasably coupled together. The system includes a first dual strap assembly that can be coupled to one of the straps of the seat belt which has a first section of a first passenger strap and a first section of a second passenger strap. The first sections of the first and second passenger straps each have a first part of a coupling mechanism attached thereto. A second dual strap assembly is provided that can be coupled to the other of the straps of the seat belt, the second strap assembly having a second section of a first passenger strap and a second section of a second passenger strap. The second sections of the first and second passenger straps each have a second part of a coupling mechanism attached thereto which can be matingly coupled to the first parts of the coupling mechanism.

Abstract: A pillow structure includes a main pillow adjustably mounted to a chair and two side pillows respectively mounted two sides of the main pillow and extending in a direction transverse to the main pillow. Each side pillow includes an extension telescopically received therein and slidable along the extending direction of an associated side pillow.

Abstract: A safety assembly for a passenger seat in a vehicle such as an airplane is made up of a padded seat cover for fitting over the seat and a safety suit sandwiched between the seat cover and the seat cushions. The seat cover can be opened up by means of a closure member to make the suit accessible to the passenger. The suit is so constructed that the passenger may sit down upon it while donning it. The suit is formed to be adaptable to a wide variation in passenger size, and, when donned, affords flame and smoke protection for the passenger.

Abstract: An impact protection device in a motor vehicle having a vehicle seat has a taut tightening strap which reaches from the upper area of the backrest into the forward area of the seat cushion, so that the backrest is prevented from folding backwards in a vehicle crash. A protective element is positioned laterally on the vehicle seat, so that the impact of a sitting person moving toward the side during a vehicle crash can be damped.

Abstract: An infant carrier (10) has an upper opening (32) that has a track (42) at each edge. A sliding door (40) is mounted in the track (42) for movement between an open and closed position. The door has mesh covered windows (43) that provide visibility to the infant and vision for the infant. The door is flexible in the longitudinal direction to expeditiously slide in the track which is contoured about the housing.

Abstract: A vertical baby support for simulating an ordinary holding position of a baby. A first inclined support receives, supports and retains a baby in a substantially vertical position. A cradle support holds the baby;s bottom while additional side straps provide further support of the baby against the inclined surface. A second support receives and supports the baby in a sitting position. A pair of side straps are releasably coupled to a center strap for securing the baby in the sitting position. Stabilizers are provided for preventing the accidental tipping of the baby holder when a baby is being supported therein.

Abstract: A modular orthotic seat is made up of individual shells or modules that are adjustably connected together for accommodating changes in size of the user. The modules include a pelvic module for support of the thighs, pelvis and sacrum, a thoracic module for support in the thorax and lumbar regions, and a cervical-head support. The modules are mounted on a strut that permits adjustment between the modules. Suitable bedding or padding can be used for final custom fitting. An adjustable seat pan is provided for permitting adjustment of the supporting seat to accommodate angular variations of the pelvic regions of the user.

Abstract: A child seat apparatus includes a seat, a reclinable backrest, and at least either a pair of side guards rotatably mounted on the backrest or a pair of armrests mounted on the seat, wherein the lateral spacing between the side guards or the armrests is changeable. An interlocking mechanism links the backrest with the side guards or the armrests so that the space between the side guards or the armrests is changed in association with the inclination of the backrest. Specifically, this space is widened as the backrest is reclined. Such an interlocking mechanism, for example, includes driving pins that are driven with an upper end of a bridging bar for supporting the backrest in a reclined state while a pair of driven slots are provided in the side guards for receiving the driving pins respectively. The driven slots are directed at an angle relative to each other so as to be closer to each other at upper ends thereof.