US20210061332A1 - Push-pull wagon - Google Patents

Push-pull wagon Download PDF

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Publication number
US20210061332A1
US20210061332A1 US17/006,153 US202017006153A US2021061332A1 US 20210061332 A1 US20210061332 A1 US 20210061332A1 US 202017006153 A US202017006153 A US 202017006153A US 2021061332 A1 US2021061332 A1 US 2021061332A1
Authority
US
United States
Prior art keywords
wagon
assembly
end assembly
handle
pivotally connected
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US17/006,153
Other languages
English (en)
Inventor
Samantha Sturgeon
Collin Ostergaard
Scott Padiak
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Radio Flyer Inc
Original Assignee
Radio Flyer Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Radio Flyer Inc filed Critical Radio Flyer Inc
Priority to US17/006,153 priority Critical patent/US20210061332A1/en
Assigned to RADIO FLYER INC. reassignment RADIO FLYER INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: PADIAK, SCOTT, OSTERGAARD, COLLIN, STURGEON, SAMANTHA
Publication of US20210061332A1 publication Critical patent/US20210061332A1/en
Priority to US17/689,370 priority patent/US20220194451A1/en
Abandoned legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
    • B62B3/007—Coaster wagons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
    • B62B3/02—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving parts being adjustable, collapsible, attachable, detachable or convertible
    • B62B3/022—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving parts being adjustable, collapsible, attachable, detachable or convertible folding down the body to the wheel carriage or by retracting projecting parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
    • B62B3/02—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving parts being adjustable, collapsible, attachable, detachable or convertible
    • B62B3/025—Foldable roll containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B5/00—Accessories or details specially adapted for hand carts
    • B62B5/04—Braking mechanisms; Locking devices against movement
    • B62B5/0433—Braking mechanisms; Locking devices against movement foot operated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B5/00—Accessories or details specially adapted for hand carts
    • B62B5/04—Braking mechanisms; Locking devices against movement
    • B62B5/0457—Braking mechanisms; Locking devices against movement by locking in a braking position
    • B62B5/0461—Braking mechanisms; Locking devices against movement by locking in a braking position with positive engagement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B5/00—Accessories or details specially adapted for hand carts
    • B62B5/06—Hand moving equipment, e.g. handle bars
    • B62B5/061—Hand moving equipment, e.g. handle bars both ends or periphery of cart fitted with handles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B5/00—Accessories or details specially adapted for hand carts
    • B62B5/06—Hand moving equipment, e.g. handle bars
    • B62B5/064—Hand moving equipment, e.g. handle bars adaptable for different users, e.g. by means of pivoting elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B5/00—Accessories or details specially adapted for hand carts
    • B62B5/06—Hand moving equipment, e.g. handle bars
    • B62B5/067—Stowable or retractable handle bars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B5/00—Accessories or details specially adapted for hand carts
    • B62B5/08—Children's seats ; Seats or supports for other persons
    • B62B5/082—Children's seats
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B9/00—Accessories or details specially adapted for children's carriages or perambulators
    • B62B9/10—Perambulator bodies; Equipment therefor
    • B62B9/14—Equipment protecting from environmental influences, e.g. Hoods; Weather screens; Cat nets
    • B62B9/142—Equipment protecting from environmental influences, e.g. Hoods; Weather screens; Cat nets by flexible canopies, covers or nets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B2205/00—Hand-propelled vehicles or sledges being foldable or dismountable when not in use
    • B62B2205/20—Catches; Locking or releasing an articulation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B2205/00—Hand-propelled vehicles or sledges being foldable or dismountable when not in use
    • B62B2205/26—Arrangements for standing up in folded position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B2301/00—Wheel arrangements; Steering; Stability; Wheel suspension
    • B62B2301/04—Wheel arrangements; Steering; Stability; Wheel suspension comprising a wheel pivotable about a substantially vertical axis, e.g. swivelling castors

Definitions

  • the present disclosure relates generally to wagons, and more specifically to a wagon that has push and pull functionality.
  • Wagons are used throughout the world and are well known in the art. While such wagons according to the prior art provide a number of advantages, they nevertheless have certain limitations.
  • the present disclosure seeks to overcome certain of those limitations and other drawbacks of the prior art, and to provide new features not heretofore available. A full discussion of the features and advantages of the present disclosure is deferred to the following detailed description, which proceeds with reference to the accompanying drawings.
  • the disclosed subject technology relates to a wagon having a push handle or bar and a pull handle.
  • the disclosed technology further relates to a wagon comprising: a wagon frame having a first end assembly and an opposing second end assembly; a floor assembly connected to the wagon frame between the first end assembly and the second end assembly, wherein the wagon frame folds between an open configuration and a folded configuration; first and second rear wheels rotatably connected to the wagon frame adjacent the second end assembly; first and second front wheels rotatably and pivotally connected to the wagon frame adjacent the first end assembly; a handle pivotally connected to the first end assembly; and, a push bar pivotally connected to the second end assembly, the push bar lockably positionable in a plurality of use positions and a storage position.
  • the disclosed technology further relates to a wagon comprising: a wagon frame having a first end assembly and an opposing second end assembly; first and second rear wheels rotatably connected to the wagon frame adjacent the second end assembly; first and second front wheels rotatably and pivotally connected to the wagon frame adjacent the first end assembly; and, a push bar pivotally connected to the second end assembly with a ratchet mechanism, wherein the push bar is lockably positionable in a plurality of angularly located use positions via the ratchet mechanism.
  • the disclosed technology further relates to a wagon comprising: a wagon frame having a first end assembly and an opposing second end assembly; first and second rear wheels rotatably connected to the wagon frame adjacent the second end assembly; first and second front wheels rotatably and pivotally connected to the wagon frame adjacent the first end assembly; a push bar connected to the wagon frame; and, a handle pivotally connected to the first end assembly, wherein the handle is spring loaded and biased toward the first end assembly, and wherein the handle has a pivot member with a cam surface to removably secure the handle in a vertical position.
  • the disclosed technology further relates to a wagon, wherein the handle is pivotally connected to the first end assembly, wherein the handle is spring loaded and biased toward the first end assembly.
  • the disclosed technology further relates to a wagon, wherein the handle has a pivot member with a cam surface to removably secure the handle in a vertical position.
  • the disclosed technology further relates to a wagon, wherein the cam is a raised protrusion extending from an arcuate outer surface of the pivot member, and wherein the cam has a generally flat surface toward a center thereof that engages a mating wall to operate as a stop.
  • the disclosed technology further relates to a wagon, further comprising a fabric housing on the wagon frame.
  • the disclosed technology further relates to a wagon, wherein the push bar is connected to the second end assembly with a ratchet mechanism.
  • the disclosed technology further relates to a wagon, further comprising a spring-loaded button to disengage a ratchet in the ratchet mechanism to adjust an angular position of the push bar.
  • the disclosed technology further relates to a wagon, wherein the push bar is lockably positionable in a plurality of angularly located use positions via the ratchet mechanism.
  • the disclosed technology further relates to a wagon, further comprising a foot activated brake mechanism adjacent the second end assembly to rotationally lock at least one of the rear wheels.
  • the disclosed technology further relates to a wagon, further comprising a removable canopy connected to telescoping posts that are secured to the wagon frame.
  • the disclosed technology further relates to a wagon, wherein the floor assembly comprises a first floor assembly pivotal with respect to the first end assembly, and a second floor assembly pivotal with respect to the second end assembly, and wherein the first floor assembly is pivotable with respect to the second floor assembly to allow for folding of the wagon frame.
  • the disclosed technology further relates to a wagon, further comprising a linkage assembly under the floor assembly, the linkage assembly having a first linkage pivotally connected to the first end assembly and a second linkage pivotally connected to the second end assembly, wherein the first linkage is also pivotally connected to the second linkage.
  • the disclosed technology further relates to a wagon, wherein the wagon frame folds between an open configuration and a folded configuration, wherein the wagon frame has a floor assembly between the first end assembly and the second end assembly, wherein the floor assembly comprises a first floor assembly pivotal with respect to the first end assembly, and a second floor assembly pivotal with respect to the second end assembly, and wherein the first floor assembly is pivotable with respect to the second floor assembly to allow for folding of the wagon frame, wherein the wagon frame further has a linkage assembly under the floor assembly, the linkage assembly having a first linkage pivotally connected to the first end assembly and a second linkage pivotally connected to the second end assembly, wherein the first linkage is also pivotally connected to the second linkage.
  • FIG. 1 is a top front perspective view of a folding push-pull wagon according to one embodiment.
  • FIG. 2 is a top front perspective view of a frame for a folding push-pull wagon according to one embodiment.
  • FIG. 3 is a top rear perspective view of a frame for a folding push-pull wagon according to one embodiment.
  • FIG. 4 is a bottom front perspective view of a frame for a folding push-pull wagon according to one embodiment.
  • FIG. 5 is front top perspective view of the folding push-pull wagon of FIG. 1 in the folded orientation.
  • FIG. 6 is a top side perspective view of an integrated brake push-bar bracket for the folding push-pull wagon according to one embodiment.
  • FIG. 7 is a top rear perspective view of the brake assembly for the folding push-pull wagon according to one embodiment.
  • FIG. 8 is a side elevation view of the push-pull bar of the folding push-pull wagon of FIG. 1 , with the push-pull bar in various orientations.
  • FIG. 9 is an exploded view of the folding mechanism of the push-pull bar of the folding push-pull wagon of FIG. 1 .
  • FIG. 10 is a cross sectional view of the folding mechanism of FIG. 9 in the locked orientation.
  • FIG. 11 is a cross sectional view of the folding mechanism of FIG. 9 in the unlocked orientation.
  • FIG. 12 is a side elevation view of a rotatable pull handle of the folding push-pull wagon of FIG. 1 .
  • FIG. 13 is a partial front perspective view of one embodiment of the pull handle knuckle with the housing partially removed.
  • FIG. 14 is a partial front perspective view of another embodiment of the pull handle knuckle.
  • FIG. 15 is a partial exploded perspective view of the pull handle knuckle of FIG. 14 .
  • FIG. 16 is a cross sectional view of the pull handle knuckle of FIG. 14 in the locked position.
  • FIG. 17 is a side view of the pull handle knuckle of FIG. 14 with the housing removed.
  • the push-pull wagon 10 may be a foldable push-pull wagon 10 that includes a foldable push bar 12 and a collapsible or foldable frame assembly 14 that is moveable between an unfolded or use configuration ( FIGS. 1-4 ) and a collapsed or folded configuration ( FIG. 5 ).
  • the frame assembly 14 need not be collapsible or foldable, and the push bar 12 may be used with other types of wagons, including wooden wagons, plastic wagons, and wagons that do not fold.
  • the frame assembly 14 includes a first end assembly 16 , a second end assembly 18 , a floor assembly connected to the wagon frame 14 between the first end assembly 16 and the second end assembly 18 , and a linkage assembly 24 .
  • the first floor assembly 20 is pivotally connected to and extends from the first end assembly 16
  • the second floor assembly 22 is pivotally connected to and extends from the second end assembly 18
  • the linkage assembly 24 connects the first end assembly 16 to the second end assembly 18 .
  • the foldable wagon 10 includes a flexible housing 26 connected to the foldable frame assembly 14 .
  • the first end assembly 16 generally comprises two vertical members 30 and 32 , connected by a front lower cross support 34 towards a bottom of the two vertical members 30 and 32 .
  • the second end assembly 18 generally comprises two vertical members 40 and 42 , connected by a rear lower cross support 44 towards a bottom of the two vertical members 40 and 42 .
  • a canopy assembly (not shown) may be removably connected to telescoping posts 31 that are secured to the wagon frame 14 .
  • the wagon 10 includes first and second front wheels 46 rotatably and pivotally connected to the frame assembly 14 adjacent the first end assembly 16 .
  • the front wheels 46 rotate about their axles 48 .
  • the front wheels 46 may be pivotable caster assemblies.
  • the wagon 10 may have few or greater than two front wheels.
  • the front wheels may be connected to the handle through a steering mechanism to provide a steerable assembly.
  • the wagon 10 also includes a handle 50 pivotally connected to the first end assembly 16 .
  • the handle 50 is pivotally connected to a pivoting knuckle assembly 52 .
  • the knuckle assembly 52 may be secured to the front lower cross support 34 of the first end assembly 16 .
  • the handle 50 as shown in FIGS. 12-13 , is biased toward the upright/vertical position, and thus toward the first end assembly 17 .
  • the knuckle assembly 52 of the handle 50 may be spring loaded and therefore have one or more springs 54 , such as torsion springs 54 , therein to bias the handle 50 upwardly and toward the first end assembly 16 so that when the handle 50 is not being manipulated by a user, it will remain vertically upward so it will not impede movement of the wagon 10 when the wagon 10 is pushed by a user with the foldable push bar 12 adjacent the second end assembly 18 .
  • springs 54 such as torsion springs 54
  • the wagon 10 also has first and second rear wheels 60 rotatably connected to the second end assembly 18 .
  • the rear wheels 60 are rotationally connected to a fixed axle 62 , however, in alternate embodiments the rear wheels 60 are connected to separate axles that are rotationally connected at opposing sides of the second end assembly 18 .
  • the first floor assembly 20 is pivotally connected to and extends from the first end assembly 16 .
  • the first floor assembly 20 generally comprises two side members 70 , a first end member 72 , a second end member 74 , and a plurality of central support members 76 .
  • the first end member 72 is pivotally connected between the two vertical members 30 , 32 of the first end assembly 16 . Shoulder bolts or other fastening mechanisms may be used to pivotally connect the first end member 72 between and to the two vertical members 30 , 32 of the first end assembly 16 .
  • the two side members 70 are preferably fixed adjacent opposing ends of the first end member 72 and extend toward a center of the floor of the wagon 10 .
  • the second end member 74 and a plurality of central support members 76 are utilized to provide rigidity to the first floor assembly 20 .
  • the second floor assembly 22 of the various embodiments is pivotally connected to and extends from the second end assembly 18 .
  • the second floor assembly 22 generally comprises two side members 80 , a first end member 82 , a second end member 84 , and a plurality of central support members 86 .
  • the first end member 82 is pivotally connected between the two vertical members 40 , 42 of the second end assembly 18 .
  • Shoulder bolts or other fastening mechanisms may be used to pivotally connect the first end member 82 between and to the two vertical members 40 , 42 of the second end assembly 18 .
  • the two side members 80 are preferably fixed adjacent opposing ends of the second end member 82 and extend toward a center of the floor of the wagon 10 .
  • the second end member 84 and a plurality of central support members 86 are utilized to provide rigidity to the second floor assembly 22 .
  • floor panels 88 may be secured to a top of the floor assemblies 20 , 22 to provide a base or floor for the wagon 10 , on which the flexible housing 26 may rest.
  • the first and second floor assemblies 20 , 22 are connected at a center brace 90 .
  • the center brace 90 may be pivotally connected to the first floor assembly 20 and the second floor assembly 22 to allow the first floor assembly 20 to be pivotally connected to the second floor assembly 22 .
  • the center brace 90 is an elongated member, such as a round or other shaped tube or solid member, that extends to connect each of the side members 70 and 80 of the first and second floor assemblies 20 , 22 thereto.
  • the width of at least a portion of the first floor assembly 20 is greater than the width of at least a portion of the second floor assembly 22 to allow for at least a portion of the side members 70 of the first floor assembly 20 to be exterior but adjacent the side members 80 of the second floor assembly 20 for clearance purposes.
  • the first and second floor assemblies 20 , 22 define the floor of the wagon 10 .
  • the linkage assembly 24 is provided under the floor assembly, connects the first end assembly 16 to the second end assembly 18 , and provides rigidity to the wagon 10 in both the open and closed configurations, but also allows the wagon 10 to be collapsed or folded such that the first end assembly 16 and second end assembly 18 are adjacent one another (see FIG. 5 ).
  • the linkage assembly 24 comprises a first end linkage 100 and a second end linkage 106 .
  • the first end linkage 100 has a first end 102 and a second end 104 .
  • the first end 102 of the first end linkage 100 is pivotally connected to the first end assembly 16 .
  • the second end linkage 106 has a first end 108 and a second end 110 .
  • the first end 108 of the second end linkage 106 is pivotally connected to the second end assembly 18 .
  • the second end 104 of the first end linkage 100 is pivotally connected to the second end 110 of the second end linkage 106 .
  • the pivot connection 118 between the first end linkage 100 and the second end linkage 106 is that of a clevis and tang orientation.
  • one of the second end 104 of the first end linkage 100 or the second end 110 of the second end linkage 106 has a clevis 120
  • the other of the second end 104 of the first end linkage 100 or the second end 110 of the second end linkage 106 has a tang 122 that fits within the clevis 120 .
  • a pin 124 joins the clevis 120 and tang 122 , and allows the first end linkage 100 and the second end linkage 106 to pivot with respect to one another during opening and closing of the wagon 10 .
  • the first end linkage 100 and the second end linkage 106 form a two-bar linkage to assist in keeping the first end assembly 16 secured to the second end assembly 18 in both the open configuration and the collapsed configuration, as well as in the transition between the open and collapsed configuration.
  • the first end linkage 100 and the second end linkage 106 each have a first section 130 that extends at an angle to the first and second end assemblies 16 , 18 , and a second section 132 that extends generally parallel to the longitudinal axis of the wagon 10 .
  • the second sections 132 meet at the pivot connection 118 between the first and second end linkages 100 , 106 .
  • the wagon 10 also includes a housing assembly 26 on the wagon frame that defines sidewalls and preferably a bottom or floor of the wagon 10 .
  • the housing assembly 26 is made of fabric and is referred to as the flexible housing 26 .
  • the flexible housing 26 preferably includes side portions 140 , end portions 142 and a bottom wall 144 or floor 144 .
  • the end portions 142 of the housing assembly 26 have rigid wall members therein 145 (see FIG. 4 ).
  • the wagon 10 may also have safety belts 146 that secure through the end portions 142 of the flexible housing 26 and to the rigid wall members 145 .
  • the safety belts 146 are 5-point safety belts 146 that are adjustable to the size of the child in the wagon 10 with the use of openings 148 at varying heights along the end portions 142 and rigid wall members 145 as shown in FIG. 1 .
  • the wagon 10 may be operated without a housing assembly 26 . In this orientation, the wagon frame 14 would provide structure for hauling whatever the user desires.
  • the wagon 10 also includes a push bar 12 that may be foldable, or put another way lockably positionable in a plurality of angularly located use positions and a storage position.
  • the push bar 12 may comprise an upper push handle 150 and first and second lower push bar supports 152 .
  • the push handle 150 is pivotally connected to the second end assembly 18 , including in one embodiment with a ratchet mechanism 154 .
  • the push handle 150 is connected to the first and second lower push bar supports 152 at a pair of pivotable mechanisms 154 , such as pivotable ratchet mechanisms 154 .
  • the push bar 12 is pivotally connected to the second end assembly 18 . Further, in one embodiment the push bar 12 is secured to the wagon frame 14 via first and second upper connectors 156 and first and second lower connectors 158 . As shown in FIGS. 2-5 and 8 , in one embodiment, one of the upper connectors 156 secures the first lower push bar support 152 to the vertical member 40 of the wagon frame 14 , and the other of the upper connectors 156 secures the second lower push bar support 152 to vertical member 42 of the wagon frame 14 . In such an embodiment, the lower push bar supports 152 are secured to the wagon frame 14 a distance behind the wagon frame 14 .
  • the upper push handle 150 may generally comprise a U-shaped member.
  • one pivotable ratchet mechanism 154 is provided at a first end 158 of the first lower push bar support 152 and another pivotable ratchet mechanism 154 is provided at a first end 158 of the second lower push bar support 152 .
  • the two pivotable ratchet mechanisms 154 then secure to the two ends of the upper push handle 150 .
  • the pivotable ratchet mechanisms 154 have a spring loaded button 160 to disengage the ratchet 162 in the ratchet mechanism 154 to adjust an angular position of the push bar 12 .
  • the ratchet mechanism 154 is able to adjust and lock the push handle 150 into a variety of positions for height adjustability in the use position as shown in FIG. 104 .
  • the ratchet mechanism 154 allows the push handle 150 to be placed into a storage position as FIGS. 5 and 8 when the handle 150 is folded adjacent the first and second lower push bar supports 152 .
  • the first lower connector 158 secures a second end 164 of the first lower push bar support 152 to vertical member 40 of the wagon frame 14
  • the second lower connector 158 secures a second end 164 of the second lower push bar support 152 to vertical member 42 of the wagon frame 14 at the second end assembly 18 of the wagon 10
  • the lower connectors 158 also have openings to allow the rear axle 62 to extend through the connectors 158 and to be secured to the vertical members 40 , 42 .
  • the first and second lower connectors 158 are also referred to as brake push-bar brackets 158 . That is because in one embodiment the lower connectors 158 pivotally support a brake bar 166 via brake brackets 168 .
  • the brake bar is operable by a foot of a user.
  • the brake brackets 168 each have a pin 170 that engage spokes 172 in the wheel hubs 174 to lock the wheel hub 174 with respect to the brake bar 166 and prevent the rear wheels 60 from rotating.
  • knuckle assembly 52 for the wagon handle 50 also has a cam feature 176 to further secure the handle 50 in the up position.
  • the knuckle assembly 52 generally comprises a bracket 178 , a housing 179 , a pivot member 180 pivotally secured to the bracket 178 with a shaft 182 , and a pair of springs 54 to bias the pivot member 180 and handle 50 toward the upright/vertical position.
  • the pivot member 180 has an opening 181 to receive and secure the handle 50 therein.
  • the bracket 178 is secured to the front lower cross support 34 .
  • the bracket 178 has ears 184 to support the shaft 182 for pivotally supporting the pivot member 180 .
  • the pivot member 180 may be biased toward the upright/vertical position with the use of one or more springs 54 , such as torsion springs 54 , that are connected to the bracket 178 and the pivot member 180 .
  • the springs 54 bias the handle 50 generally vertically upwardly and toward the first end assembly 16 when the handle 50 is not being manipulated by a user so that the handle 50 will not impede movement of the wagon 10 when the wagon 10 is pushed by a user with the foldable push bar 12 adjacent the second end assembly 18 .
  • a cam feature 176 or cam surface 176 is preferably provided on a surface of the pivot member 180 .
  • the cam feature 176 is a raised protrusion 186 extending from the arcuate outer surface of the pivot member 180 .
  • the raised protrusion 186 has a generally flat surface 188 at a center thereof.
  • the flat surface 188 of the raised protrusion 186 operates as a stop when it engages the mating wall 190 of the bracket 178 .
  • the cam surface 176 helps to removably secure the handle 50 in a vertical position.
  • the bias springs 54 will bias the handle 50 toward the upright position.
  • the force of the bias springs 54 may not be sufficient to overcome the interference force of the mating wall 190 against the edge 192 of the cam 176 .
  • the user will have to further rotate the handle 50 with sufficient force to rotate the pivot member 180 with its cam 176 , and at a certain rotation the flat 188 of the cam 176 will engage, in a snap-like manner, the mating wall 190 of the bracket 178 to retain the handle 50 in the generally vertical position.
  • the user will likewise have to use a sufficient force to overcome the interference force of the mating wall 190 against the cam 176 in the reverse pivot rotation.
  • the phrase “at least one of” preceding a series of items, with the terms “and” or “or” to separate any of the items, modifies the list as a whole, rather than each member of the list (i.e., each item).
  • the phrase “at least one of” does not require selection of at least one item; rather, the phrase allows a meaning that includes at least one of any one of the items, and/or at least one of any combination of the items, and/or at least one of each of the items.
  • phrases “at least one of A, B, and C” or “at least one of A, B, or C” each refer to only A, only B, or only C; any combination of A, B, and C; and/or at least one of each of A, B, and C.
  • phrases such as an aspect, the aspect, another aspect, some aspects, one or more aspects, an implementation, the implementation, another implementation, some implementations, one or more implementations, an embodiment, the embodiment, another embodiment, some embodiments, one or more embodiments, a configuration, the configuration, another configuration, some configurations, one or more configurations, the subject technology, the disclosure, the present disclosure, other variations thereof and alike are for convenience and do not imply that a disclosure relating to such phrase(s) is essential to the subject technology or that such disclosure applies to all configurations of the subject technology.
  • a disclosure relating to such phrase(s) may apply to all configurations, or one or more configurations.
  • a disclosure relating to such phrase(s) may provide one or more examples.
  • a phrase such as an aspect or some aspects may refer to one or more aspects and vice versa, and this applies similarly to other foregoing phrases.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Handcart (AREA)
  • Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)
US17/006,153 2019-08-30 2020-08-28 Push-pull wagon Abandoned US20210061332A1 (en)

Priority Applications (2)

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US17/006,153 US20210061332A1 (en) 2019-08-30 2020-08-28 Push-pull wagon
US17/689,370 US20220194451A1 (en) 2019-08-30 2022-03-08 Push-pull wagon

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US201962893992P 2019-08-30 2019-08-30
US201962903145P 2019-09-20 2019-09-20
US17/006,153 US20210061332A1 (en) 2019-08-30 2020-08-28 Push-pull wagon

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EP (1) EP4061689A4 (fr)
JP (1) JP2022545601A (fr)
KR (1) KR20220052306A (fr)
CN (1) CN114040871A (fr)
AU (2) AU2020337993A1 (fr)
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US20210122403A1 (en) * 2019-10-23 2021-04-29 Radio Flyer Inc. Handle release and locking mechanism
US20220024509A1 (en) * 2020-07-21 2022-01-27 Wonderland Switzerland Ag Stroller With Linkage-Foldable Backrest
US11572091B1 (en) * 2022-04-26 2023-02-07 Sapphire premium (shenzhen) technology co., ltd Foldable wagon
US11603123B1 (en) * 2020-12-09 2023-03-14 Dario A. Collado Collapsible shopping cart
USD981677S1 (en) * 2022-06-13 2023-03-21 Hangzhou Wanray Import & Export Co., Ltd. Cart handle
USD1018688S1 (en) * 2023-11-02 2024-03-19 Xidong Wu Folding wagon
USD1021314S1 (en) * 2023-06-05 2024-04-02 Dean Sun Beach wagon

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210122403A1 (en) * 2019-10-23 2021-04-29 Radio Flyer Inc. Handle release and locking mechanism
US11718337B2 (en) * 2019-10-23 2023-08-08 Radio Flyer Inc. Handle release and locking mechanism
US20220024509A1 (en) * 2020-07-21 2022-01-27 Wonderland Switzerland Ag Stroller With Linkage-Foldable Backrest
US11866085B2 (en) * 2020-07-21 2024-01-09 Wonderland Switzerland Ag Stroller with linkage-foldable backrest
US11603123B1 (en) * 2020-12-09 2023-03-14 Dario A. Collado Collapsible shopping cart
US11572091B1 (en) * 2022-04-26 2023-02-07 Sapphire premium (shenzhen) technology co., ltd Foldable wagon
USD981677S1 (en) * 2022-06-13 2023-03-21 Hangzhou Wanray Import & Export Co., Ltd. Cart handle
USD1021314S1 (en) * 2023-06-05 2024-04-02 Dean Sun Beach wagon
USD1018688S1 (en) * 2023-11-02 2024-03-19 Xidong Wu Folding wagon

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EP4061689A4 (fr) 2024-05-15
CN114040871A (zh) 2022-02-11
KR20220052306A (ko) 2022-04-27
AU2020337993A1 (en) 2021-12-16
WO2021041872A1 (fr) 2021-03-04
CA3139006A1 (fr) 2021-03-04
JP2022545601A (ja) 2022-10-28
US20220194451A1 (en) 2022-06-23
MX2021014857A (es) 2022-01-18
EP4061689A1 (fr) 2022-09-28
AU2024201567A1 (en) 2024-03-28

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