| ReturnTo Theme-Group-Choice | Onelevelup |
| 3D051 | Carriages for children, sleds, and other hand-operated vehicles | |
| B62B7/00 -19/04 | ||
| B62B7/00-9/28 | AA | AA00 OVERALL STRUCTURE |
AA01 | AA02 | AA03 | AA04 | AA06 | AA07 | AA08 | AA09 | AA10 | |
| . Arrangement of wheels | . . Wheels at four points | . . Wheels at three points | . . Wheels at two points | . Collapsible vehicles | . . Collapsing in a widthwise direction | . . Collapsing in a lengthwise direction | . . Collapsing in a widthwise and lengthwise direction | . . Collapsing in an upward or downward direction | ||||
| AA11 | AA12 | AA13 | AA15 | AA16 | AA17 | AA18 | AA19 | |||||
| . . . Wheels move towards the front and back | . . . Wheels move away from the front and back | . . . Stationary wheels | . Structures that are not collapsible | . Folding types | . . Types wherein all the wheels touch the ground | . . Types wherein all the wheels stand in close proximity | . . Vertically-separating standing types | |||||
| AA21 | AA22 | AA23 | AA24 | AA26 | AA30 | |||||||
| . Handlebars | . . Vertical pairs of handlebars (i.e., on the left and right) | . . Vertical bars that are connected at the upper edge | . . One handlebar located in the center | . Unspecified types | . Others | |||||||
| BA | BA00 FRAME STRUCTURE |
BA01 | BA02 | BA03 | BA05 | BA06 | BA07 | BA08 | BA09 | BA10 | ||
| . Bars cross front-to-back | . . X-shaped structures | . . Inverted-V shaped structures | . Handle bars that are integrated into the front frame | . Handle bars that are integrated into the back frame | . Backrests that are part of the frame | . . Backrest bars | . . . Transverse connecting bars | . . . . X-shaped transverse connecting bars | ||||
| BA11 | BA13 | BA14 | BA20 | |||||||||
| . . Plate-shaped backrests | . Use of underframes | . . Underframes that are mounted on the wheels or axles | . Others | |||||||||
| BB | BB00 COLLAPSING AND FOLDING STRUCTURES |
BB01 | BB02 | BB03 | BB04 | BB06 | BB07 | BB08 | ||||
| . Collapsible elements | . . Transverse connecting bars (i.e., left-to-right) | . . . Bars that fold in one place | . . . Bars that fold in two places | . . Lengthwise connecting bars | . . X-shaped connecting bars | . . Seats | ||||||
| BB11 | BB12 | BB13 | BB14 | BB16 | BB18 | BB19 | BB20 | |||||
| . Locking mechanisms | . . Lock status | . . . Open-lock status | . . . . Locking by the weight of an infant | . . . Closed-lock status | . . Locks | . . . Hand-locks and rear-bar locks | . . . Hand-locks on the transverse connecting bar | |||||
| BB21 | BB22 | BB23 | BB24 | BB26 | BB27 | BB28 | BB30 | |||||
| . . . Locks on the rear transverse connecting bar | . . . Locks on the transverse connecting bar of the backrest | . . . Locks for sliding elements | . . . Locks for X-shaped connection bars | . . Lock-release means | . . . Operating levers | . . . . Remote means (i.e., in the proximity of the handrest) | . . . Push-buttons | |||||
| BB31 | BB32 | BB34 | BB35 | BB36 | BB37 | BB38 | BB39 | BB40 | ||||
| . . . Pedals | . . . Transverse connecting levers (e.g., lifting or kick-up levers) | . Folding operation | . . Location on the handle bars | . . . Lifting of handle bars | . . . Pushing of the handle bars down to the front or back | . . . Pulling up of the handle bars | . . Single-touch operation | . Others | ||||
| CA | CA00 SEAT DETAILS |
CA01 | CA02 | CA03 | CA04 | CA05 | CA06 | CA07 | CA08 | CA09 | CA10 | |
| . Basic structures | . . Box types | . . . Bottom surfaces | . . Chair types (i.e., stool types) | . . . Backrests | . . . Seat surfaces | . . Combined use of box and chair types (e.g., by switching) | . Seat mountings (e.g., hammocks) | . . Hooking or hanging seats | . . . Detachable seats | |||
| CA11 | CA12 | CA13 | CA14 | CA15 | CA16 | CA17 | CA18 | CA20 | ||||
| . Reclining backrests | . . Freely adjustable backrests | . . Backrests adjustable to specific or mulitple angles | . . backrests reclining to about 180 degrees | . . Use of head guards | . . Movement of the seat surface (i.e. longitudinal or inclination) | . Maintenance belts | . Materials | . Others | ||||
| CB | CB00 DETAILS OF THE HANDLEBARS |
CB01 | CB02 | CB03 | CB04 | CB05 | CB06 | CB07 | CB08 | CB10 | ||
| . Height adjustment | . . Sliding types | . Switching between front-facing and rear-facing types | . . Connection to the front or rear frame | . Gripping units or covers thereof | . Collapsible handlebars | . . Vertically collapsible handlebars | . . Handlebars that are collapsible in the direction of width | . Others | ||||
| CC | CC00 DETAILS OF HOODS |
CC01 | CC02 | CC03 | CC04 | CC05 | CC06 | CC07 | CC10 | |||
| . Hood frames | . . Mounting locations | . . . Mounting onto the hand levers | . . . Mounting onto the handlebars | . . Changeable positions | . . . Variable mounting angles | . . Detachable hood frames | . Hood shapes | |||||
| CC11 | CC12 | CC13 | CC14 | CC16 | CC17 | CC18 | CC19 | CC20 | ||||
| . . Covering of the upper area | . . . Covering of the top area | . . Covering of the entire surface | . . Use of leg covers | . Collapsible hoods | . . Adjustments in the opening angle | . . Folding in the direction of width | . . Hoods that can be rolled up (e.g., for storage) | . Others | ||||
| CD | CD00 DETAILS OF HANDRAILS |
CD01 | CD02 | CD04 | CD05 | CD06 | CD08 | CD10 | ||||
| . Handrails | . . Height adjustment | . Protection frames, guards, or mounting s for the front surface | . . Integrated handrails | . . Flexible handrails | . Covers for handrails or protection frames | . Others | ||||||
| CE | CE00 DETAILS OF THE BRAKE SYSTEM |
CE01 | CE02 | CE03 | CE05 | CE06 | CE07 | CE08 | CE10 | |||
| . Brake locations | . . Locations on the tire periphery | . . Locations between wheel spokes | . Brake operating means | . . Pedals (i.e., pedal systems) | . . Remote means (i.e. on handle bars) | . . Braking with both wheels or all wheels in a single operation | . Others | |||||
| CF | CF00 DETAILS OF STEERING DEVICES |
CF01 | CF02 | CF03 | CF04 | CF10 | ||||||
| . Steering of the vehicle | . . Operation by a single front wheel (i.e., center) | . . Operation by front wheels (i.e., left and right) | . . Operation by back wheels (i.e., left and right) | . Others | ||||||||
| CG | CG00 DETAILS OF WHEELS OR AXLES |
CG01 | CG02 | CG03 | CG04 | CG05 | CG06 | CG07 | CG08 | CG09 | ||
| . Axles | . . Axle mountings | . . Single axles | . . Use of more than two axles | . Wheels | . . Double wheels | . . Castors | . . Crawlers | . . Sleds | ||||
| CH | CH00 DETAILS OF CUSHIONING DEVICES |
CH01 | CH02 | CH03 | CH04 | CH05 | CH06 | CH07 | CH08 | CH10 | ||
| . Elastic supports for wheels or axles | . . Sliding support-bars | . . Mounting rings for freely-rotating bars and axles | . Elastic seat supports | . Elastic supports | . . Rubber | . . Coil springs | . . Plate springs | . Others | ||||
| CJ | CJ00 ACCESSORIES AND OTHER DETAILS |
CJ01 | CJ02 | CJ03 | CJ04 | CJ05 | CJ06 | CJ07 | CJ08 | CJ09 | CJ10 | |
| . Accessories pertaining to steps | . . Height adjustment | . Containers | . . Baskets, bags, or sacks | . Umbrellas | . Plates, platforms, or carts for holding articles | . Toys | . Tire covers or fenders | . Decorations (e.g., animal shapes and the like) | . Others | |||
| DD | DD00 PURPOSE AND EFFECTS |
DD01 | DD02 | DD04 | DD05 | DD06 | DD07 | DD09 | DD10 | |||
| . Physical safety | . . Prevention of hip dislocation | . Improved steering | . Safety measures | . . Stability | . . Prevention of tipping over | . Elevating over steps | . Impact cushioning | |||||
| DD11 | DD12 | DD13 | DD14 | DD15 | DD16 | DD17 | DD18 | DD20 | ||||
| . Weight reduction and portability | . Collapsibility | . Reclining | . Swiveling of seats | . Double seats (e.g., spare seats) | . Combination with other uses | . . Chairs | . . . Baby car seats | . . Walkers | ||||
| DD21 | DD22 | DD23 | DD30 | |||||||||
| . . Tricycles | . . Load-carriers | . . Backpacks | . Other |