EP3773959A1 - Kit de pièces pour jouets fonctionnels polyvalents - Google Patents

Kit de pièces pour jouets fonctionnels polyvalents

Info

Publication number
EP3773959A1
EP3773959A1 EP19714678.0A EP19714678A EP3773959A1 EP 3773959 A1 EP3773959 A1 EP 3773959A1 EP 19714678 A EP19714678 A EP 19714678A EP 3773959 A1 EP3773959 A1 EP 3773959A1
Authority
EP
European Patent Office
Prior art keywords
connector
foam element
foam
opening
kit according
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.)
Granted
Application number
EP19714678.0A
Other languages
German (de)
English (en)
Other versions
EP3773959C0 (fr
EP3773959B1 (fr
Inventor
Theo Fischer GINMAN
Jonathan RASMUSSEN
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.)
Modu Aps
Original Assignee
Modu Aps
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 Modu Aps filed Critical Modu Aps
Publication of EP3773959A1 publication Critical patent/EP3773959A1/fr
Application granted granted Critical
Publication of EP3773959C0 publication Critical patent/EP3773959C0/fr
Publication of EP3773959B1 publication Critical patent/EP3773959B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63G—MERRY-GO-ROUNDS; SWINGS; ROCKING-HORSES; CHUTES; SWITCHBACKS; SIMILAR DEVICES FOR PUBLIC AMUSEMENT
    • A63G13/00—Cradle swings; Rocking-horses; Like devices resting on the ground
    • A63G13/02—Cradle swings
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63G—MERRY-GO-ROUNDS; SWINGS; ROCKING-HORSES; CHUTES; SWITCHBACKS; SIMILAR DEVICES FOR PUBLIC AMUSEMENT
    • A63G13/00—Cradle swings; Rocking-horses; Like devices resting on the ground
    • A63G13/06—Rocking-horses
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63G—MERRY-GO-ROUNDS; SWINGS; ROCKING-HORSES; CHUTES; SWITCHBACKS; SIMILAR DEVICES FOR PUBLIC AMUSEMENT
    • A63G23/00—Rotating or rocking pots, e.g. by moving the whole body
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H17/00—Toy vehicles, e.g. with self-drive; ; Cranes, winches or the like; Accessories therefor
    • A63H17/26—Details; Accessories
    • A63H17/262—Chassis; Wheel mountings; Wheels; Axles; Suspensions; Fitting body portions to chassis
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H33/00—Other toys
    • A63H33/04—Building blocks, strips, or similar building parts
    • A63H33/10—Building blocks, strips, or similar building parts to be assembled by means of additional non-adhesive elements
    • A63H33/101—Building blocks, strips, or similar building parts to be assembled by means of additional non-adhesive elements with clip or snap mechanism
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H33/00—Other toys
    • A63H33/04—Building blocks, strips, or similar building parts
    • A63H33/10—Building blocks, strips, or similar building parts to be assembled by means of additional non-adhesive elements
    • A63H33/102—Building blocks, strips, or similar building parts to be assembled by means of additional non-adhesive elements using elastic deformation
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H33/00—Other toys
    • A63H33/04—Building blocks, strips, or similar building parts
    • A63H33/10—Building blocks, strips, or similar building parts to be assembled by means of additional non-adhesive elements
    • A63H33/108—Building blocks, strips, or similar building parts to be assembled by means of additional non-adhesive elements with holes
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F2250/00—Miscellaneous game characteristics
    • A63F2250/18—Use of resilient or deformable elements
    • A63F2250/183—Foam

Definitions

  • the present invention relates to kits of parts for a functional toy, such as a children’s walker, push along wagon, and ride-ons, wheel toys, rocking horse, and aid for crawling, standing, rolling, jumping, climbing, and balance training.
  • a functional toy such as a children’s walker, push along wagon, and ride-ons, wheel toys, rocking horse, and aid for crawling, standing, rolling, jumping, climbing, and balance training.
  • Solid foams are a popular material for toys due to their physical and mechanical properties, including resilience, low hardness, pliability, elasticity, and light weight.
  • elements of solid foam tolerate and are easily handled by children, and at the same time have a low risk of being harmful or breaking during handling or play.
  • the physical and mechanical properties of the solid foam may be tailored by choosing the type of the solid foam.
  • Functional toys are designed to stimulate and develop a child’s skills, such as the imagination and spatial intelligence, the fine motor-, and the gross motor strength and skills.
  • An example of functional toys are construction toys or toy building sets, where parts are detachably attached to each other to form variable constructions that may be disassembled and reassembled to further constructions.
  • US 2007/0173095 discloses a multi-piece construction toy, where cuboid members are assembled by connectors to form a coherent construction of abutting cuboids.
  • the cuboid members are made of resilient foam material, exemplified as polyurethane foam with a density of 3-9 pounds per cubic foot and a hardness rating of about 20 on the Shore OO scale.
  • the connectors are made of non-resilient material, and each end of the connectors is received in openings of opposing cuboid surfaces.
  • the connectors may have an intermediate stop portion, such as a disk, ensuring the positioning of the connectors in the opposing cuboid surfaces. Tightly abutting cuboids are thus obtained by an interference fit, where the intermediate portion of the connector is received in a matching opening of the cuboid surfaces. Summary of invention
  • the present invention relates to kits of part for functional toys, and provides building elements comprising elements of solid foam and connectors, which may further be adapted as rotation shafts.
  • a first aspect of the invention relates to a kit of parts for a functional toy, comprising:
  • one or more connector(s) having a first end, a second end, and a radially extending flange placed between the two ends,
  • one or more foam element(s) with at least one essentially planar surface, said surface comprising at least one opening extending perpendicular to the planar surface for receiving at least the first end of the connector,
  • connector flange is configured as a stopper for the insertion of the first end into the foam element opening
  • kit of parts are configured such that when the first end is inserted into the foam element opening to the stopper position, and a further suitable amount of force is applied to the connector in the direction of insertion, the flange of the connector is countersunk into the surface of the foam element, and remains countersunk after the further force is removed due to the frictional force between the connector and the opening.
  • the connector flange is configured as a stopper for the insertion of the first end and/or the second end of the connector into a foam element opening.
  • the kit of parts is preferably configured such that when an end of the connector is inserted into the foam element opening to the stopper position, and a further force is applied to the connector in the direction of insertion, the flange of the connector can elastically deform the essential planar surface of the foam element, in particular the part of the planar surface adjacent and/or surrounding the opening.
  • the deformation will typically be provided upon application of a suitable amount of force to the connector in the direction of insertion, i.e. a force applied perpendicular to the planar surface of the foam element.
  • a suitable amount of force to the connector in the direction of insertion i.e. a force applied perpendicular to the planar surface of the foam element.
  • the kit of parts is further configured such that when the further force is removed, the connector flange remains countersunk in the foam element, due to the frictional force between the connector and opening, or the frictional force at the interface between connector and opening.
  • the frictional resistance between the inserted connector end and the foam element opening further determines the amount of force needed to assemble and disassemble the kit.
  • the result of the deformation of the surface of foam element and the countersinking of the connector flange is that adjacent planar surfaces of the foam elements can abut each other such that substantially no gap is seen between neighbouring foam element surfaces.
  • the connector is an elongated element with a shape that is identical to the opening of the foam element, and further advantageously the foam element opening has a cross-sectional size dimension, which is smaller than the cross-sectional size of the connector.
  • the connectors may be cylindrical connectors having a first cylindrical end, a second cylindrical end, and a radially extending flange placed between the two cylindrical ends, and the opening of the foam element is advantageously a cylindrical opening, where the diameter of the opening is at least 0.2, 0.3, 0.4, or 0.5 mm smaller than the diameter of the connector.
  • a second aspect of the invention relates to a kit of parts for a functional toy
  • kit of parts is configured such that the frictional resistance of the fastening mechanism is adjustable.
  • the wheel is preferably attachable to a connector adapted as a cylindrical rotation shaft by means of fastening mechanism, such as a snap-fit.
  • the connector adapted as a cylindrical rotation shaft can be attachable by means of fastening mechanism, such as a snap-fit, to any foam building element as disclosed herein, such that the wheel can be mounted on the building element.
  • a first end of the connector may be adapted as a rotation shaft and connected to a wheel, and the second end of the connector may be inserted into a foam element opening as described above.
  • the frictional resistance between wheel and rotation shaft and between building element and rotation shaft determines the rolling resistance of the wheel relative to the building element.
  • the kit of parts is configured such that the frictional resistance of the fastening mechanism between wheel and shaft and/or between building element and shaft is adjustable such the rolling resistance of the wheel relative to a building element is variable.
  • the rolling resistance of the wheel and/or building element is determined by the frictional resistance between the rotation shaft, or connector, and a bushing placed in the concentric opening of the wheel coinciding with the axis of rotation.
  • the frictional resistance is preferably varied by varying the contact surface area between the bushing and the rotation shaft.
  • the contact surface area may be varied by the size of the snap-fit.
  • a third aspect of the invention relates to a functional toy comprising the kits according to the first and/or second aspect of the invention.
  • the functional toy may be selected from the group of: children’s walker, push along wagon, and ride-ons, wheel toys, rocking horse, and aid for crawling, standing, rolling, jumping, climbing, and balance training.
  • kit of parts provides improved versatility, since the kit of parts may be assembled, disassembled, and re-assembled into a large number of structures, where the different structures are suitable for stimulating and enhancing the gross motor development of children in different age groups and with different motor skills.
  • the kit of parts is re-build and re-used along with the child’s development, and thus provides a cost-efficient functional toy.
  • the present invention further provides a more simple and easy assembled functional toy, where the toy is robust with improved safety, as well as being more eco-friendly.
  • Figure 1 shows an embodiment of the assembly of the kit of parts in perspective view, where the kit comprises two building blocks, or foam elements, to be connected by a connector, and where the kit is shown before assembly.
  • Figure 2 shows an embodiment of an assembled kit of parts in perspective view, where the two building blocks of Figure 1 has been assembled via the connector.
  • Figure 3 shows an embodiment of the connected building blocks, or foam elements, of Figure 2 in a cross-sectional view including the inserted connector.
  • Figure 4 shows an embodiment of the connected foam elements in a cross-sectional view including the connector, where (A) shows a close-up of the connector flange 3 and the adjacent surfaces 6 when the ends of the connector are inserted into the foam elements opening to the stopper position, and (B) shows a close-up of the of the connector flange 3 and the adjacent surfaces 6 after a force is applied to the connector, such that the flange of the connector is countersunk into the adjacent surfaces of the neighboring foam elements.
  • Figure 5 shows an embodiment of a rotatable foam wheel, where (A) shows the wheel assembled, or connected to a rotational shaft or axis, such that the wheel is rotationally attached to the cylindrical shaft, and (B) shows the wheel and rotational shaft before assembly.
  • Figure 6 shows an embodiment of a foam wheel, where the cylindrical surface of the wheel opening comprises a bushing 5a, which further comprises a protrusion 8 and bushing openings 5b, where (A) shows a close-up of the protrusion in perspective view, and (B) shows a close-up of the protrusion in a schematic perspective view.
  • Figure 7 shows a combined perspective and cross-sectional view of an embodiment of a foam wheel rotationally attached to a cylindrical connector by a first snap-fit, where (A) shows a close-up of the first snap-fit as indicated by the circle, and (B) shows the close-up in a schematic view.
  • Figure 8 shows a combined perspective and cross-sectional view of an embodiment of a foam wheel rotationally attached to cylindrical connector by a second snap-fit, where (A) shows a close-up of the second snap-fit as indicated by the circle, and (B) shows the close-up in a schematic view.
  • Figure 9 shows embodiment of the kit of parts according to the present disclosure assembled to different functional toys: (a) for rolling, (b) for rocking, (c) for standing, (d) for climbing, (e) for crawling, (f) for balancing, (g) for jumping.
  • Figure 10 shows embodiment of the kit of parts according to the present disclosure assembled to different functional toys: (a) a baby walker, (b) a push and pedal ride-on.
  • Figure 1 1 shows an embodiment of a foam element with a cuboid shape, where the planar surfaces of the cuboid comprises respectively 2, 2, and 5 openings.
  • A shows the cuboid in perspective view
  • B shows cross-sectional views of the planar surfaces including exemplified dimensions of the lengths, diameters (0) and curvature (R).
  • Figure 12 shows an embodiment of a foam element with a prism shape in the form of an angled block, where the planar surfaces of comprises respectively 1 , 2, and 2 openings.
  • A shows the block in perspective view
  • B shows cross-sectional views of the planar surfaces including exemplified dimensions of the lengths, diameters (0) and curvature (R).
  • Figure 13 shows an embodiment of a foam element with a half cylinder shape, where the planar surfaces comprises respectively 2, and 9 openings, and the cylindrical curved surface comprises 9 openings.
  • A) shows the block in perspective view
  • B) shows cross-sectional views of the planar surfaces including exemplified dimensions of the lengths, diameters (0) and curvature (R).
  • Figure 14 shows an embodiment of a foam element with a complex shape in the form of a curved coboid, where the planar surfaces comprises respectively 2, 4, and 17 openings, and the curved surface comprises 13 openinges.
  • A) shows the block in perspective view
  • B) shows cross-sectional views of the planar surfaces including exemplified dimensions of the lengths, diameters (0) and curvature (R).
  • Figure 15 shows an embodiment of a foam element with a wheel shape, where the planar surfaces comprises respectively 1 opening for the rotational attachment to a the rotational axis.
  • A shows the block in perspective view
  • B shows cross-sectional views of the planar surfaces including exemplified dimensions of the lengths, diameters (0) and curvature (R).
  • Figure 16 shows an embodiment of a connector, where the first end and the second end of the connector are symmetrical, including exemplified dimensions of the lengths, diameters (0) and curvature (R).
  • Figure 17 shows an embodiment of a connector, where the first end and the second end of the connector are symmetrical, including exemplified dimensions of the lengths, diameters (0) and curvature (R).
  • Figure 18 shows an embodiment of a connector, where the first end and the second end of the connector are assymmetrical, including exemplified dimensions of the lengths, diameters (0) and curvature (R).
  • Figure 19 shows an embodiment of a connector for a rotational axis, where the first end and optionally the second end of the connector are configured to be rotationally attached to a wheel.
  • Each end of the connector further comprises two grooves, wherein the groove furthest away from the flange comprises multiple second protrusions placed within the groove channel, said second protrusions having the form of a pattern of parallel ridges oriented perpendicular to the groove direction.
  • kit of parts according to the present disclosure may be assembled, disassembled and re-assembled into a variety of functional toys suitable for stimulating and enhancing the gross motor development of children in different age groups and with different motor skills.
  • the kit of parts provide a versatile functional toy with a variety of assembled structures, having a variety of functions, and which can be adapted to the motor skills of children with different age and motor skills development.
  • Figures 9-10 illustrates embodiments of the kit assembled to different functional toys.
  • the parts and the kit of parts may be assembled as illustrated in respectively Figures 9e, 9c, and 10a.
  • the parts and the kit of parts may be assembled as a toy for rolling ( Figure 9a), a rocking horse (Figure 9b), a climbing toy ( Figure 9d), a toy for balancing (Figure 9f), a toy for jumping ( Figure 9g), a push and pedal ride-on ( Figure 10b), or similar wheel toys, such as a balance bike, and push along bike.
  • the kit of parts is assembled into a functional toy selected from the group of: rocking horse, aid for crawling, standing, rolling, jumping, climbing, and balance training.
  • the kit of parts is assembled into a functional toy selected from the group of: children’s walker, push along wagon, and ride-ons, and wheel toys.
  • the kit of parts according to the present disclosure further provides functional toys with improved robustness and stability of the assembled construction, and the parts are made of environmental friendly materials.
  • the kits provide functional toys that are safe and reliable to use.
  • Figures 1 -2 show an embodiment of the assembly of the kit of parts.
  • the embodied kit of parts 1 comprises a cylindrical connector 2 and two cuboid foam elements 4, and Figure 1 shows a perspective view of the kit before assembly, and Figure 2 a perspective view of the assembled kit.
  • the foam elements are cuboids, wherein each planar surface 4a comprises two or more cylindrical openings 5 extending perpendicular to the planar surface comprising the opening. As indicated in Figures 1 -2, the cylindrical openings may extend from a first planar surface of the foam element to the opposite surface of the foam element, which optionally also is a planar surface.
  • the two foam elements illustrated in Figure 1 are identical in geometry and have identical geometry of the openings.
  • the cylindrical connector comprises a first cylindrical end 2a, a second cylindrical end 2b, and a radially extending planar flange 3 placed between the two cylindrical ends.
  • the first cylindrical end 2a is partially inserted into a cylindrical opening 5 of the foam element 4 placed at the bottom.
  • the cylindrical opening is configured for receiving the first cylindrical end.
  • the insertion of the connector end is restricted by the connector flange 3. This may be obtained by the size of the connector flange being larger than the diameter of the opening, such as the connector flange having a larger diameter than the diameter of the opening.
  • the connector flange is configured as a stopper for the insertion of the first cylindrical end into the foam element opening.
  • Figure 1 shows the connector being partially inserted into the bottom foam element.
  • the connector flange 3 is abutting the planar surface 4a of the bottom foam element.
  • the second end of the connector may be inserted to the stopper position of a second foam element.
  • the first and second foam elements are neighboring foam elements and become connected as illustrated in Figure 2.
  • the flange In the stopper position, the flange contacts or abuts the respective planar surfaces of the neighboring foam elements. Thus, there is a gap between the adjacent surfaces 6 of the neighboring foam elements as illustrated in Figure 4A, and the gap size will depend on the thickness of the flange.
  • the flange of the connector When a further force is applied to the connector in the direction of insertion, i.e. in the longitudinal direction of the connector, the flange of the connector may become countersunk into the adjacent surfaces of the neighboring foam elements, as illustrated in Figure 3 and 4B.
  • the further force may be obtained by simply pressing the neighboring foam elements together.
  • Figures 3 and 4B show that when the connector is inserted into the foam element opening to the stopper position, and a further force is applied to the connector in the direction of insertion, the flange of the connector elastically deforms the essential planar surface of the foam element, in particular the part of the planar surface adjacent and/or surrounding the opening.
  • the deformation will typically be provided upon application of a suitable amount of force to the connector in the direction of insertion, i.e. a force applied perpendicular to the planar surface of the foam element.
  • a connector flange can be countersunk in the foam element surface.
  • Figures 3 and 4B also show that when the further force is removed, the connector flange remains countersunk in the foam element, due to the frictional force between the connector and opening, or the frictional force at the interface between connector and opening.
  • the frictional force, or resistance, between the inserted connector end and the foam element opening will determine the amount of force needed to assemble and disassemble the kit.
  • the frictional force between the fully inserted connector and the foam element opening will depend on several factors including: foam element material, connector material, the interface structure between the foam and connector, such as the morphological structure or roughness of the foam surface and connector surface, the size of the interface, i.e. the amount of surface area of the connector in contact with the foam, the shape of the connector, and the shape of the foam opening. Further inherently, the frictional force for assembling/disassembling the kit will further depend on the number of connectors used for connecting a foam element.
  • the frictional resistance is adapted such that assembly, including countersinking of the flange, and disassembly is possible with two hands and no further tools, and optionally adapted to assembly and dissassembly by children, and furthermore the frictional resistance should be sufficent to provide sufficient stability to the assembled structure.
  • a suitable force for the assembly including
  • the countersinking of the flange, and disassembly of the kit is between 20-80 N (newton), and preferably is ca. 60 N.
  • the suitable force is in a range, where the foam element surface is not permanently deformed, but only elastically deformed, when the connector flange is countersunk into the foam surface.
  • the suitable force is configured to be below 80 N, more preferably below 75, 70, 65 N, and most preferably below 60 N.
  • the connector is countersunk into the surface of the foam element by elastic deformation of the foam element.
  • the kit of parts advantageously comprises a multiple of connectors and a multiple of foam elements, whereby a variety of structures may be build, assembled,
  • neighboring foam elements, or building elements may be connected by a connector as illustrated in Figures 1 -2.
  • the second cylindrical end 2b of the connector may be inserted into an opening of further foam element, such as the top foam element 4 illustrated in Figure 1 , whereby the bottom foam element and the top foam element becomes connected or attached as illustrated in Figure 2.
  • the flange 3 Upon connection or attachment, the flange 3 is abutting both the planar surface of the bottom foam element 4a, and the planar surface of the top foam element 4a.
  • the two planar surfaces connected by the connector are placed adjacent 6, as illustrated in Figure 2, and the distance or gap between them may be determined by the thickness of the flange.
  • the flange of the connector is
  • the gap between the adjacent planar surfaces 6 is as small as possible.
  • the adjacent planar surfaces are abutting with substantially no gap, thus providing stability and ensuring that dirt and body parts cannot be trapped within the gap.
  • the kit is configured such that when the first end of a connector is received within a first opening of a first foam element, and the second end of the connector is received within a first opening of a second foam element, using sufficient force, the adjacent surfaces of the first and second foam elements are abutting.
  • the adjacent planar surfaces of the first and second foam element are essentially abutting with a gap below 1 mm, more preferably below 0.5 mm, such as 0 mm.
  • the abutting planar surfaces is obtained by configuring the assembling force needed, with the deformation properties between the foam and the flange, and the frictional force between the connector and the opening.
  • the foam is configured to be resilient and elastically deformed or compressed upon contact with the flange and application of a suitable amount of force to the connector.
  • the elastic deformation may be configured such that the foam is compressed and the flange of the connector partially depressed into the compressed planar surface of the foam element. The result is that a connector flange can be countersunk in the foam element surface.
  • FIG. 3-4 show embodiments of connected foam element, showing the flange and abutting planar surfaces 6 in cross-sectional view.
  • the deformation properties are configured such that the adjacent planar surfaces of the foam elements are elastically compressed symmetrically around the flange, whereby the adjacent planar surfaces are abutting with no gap.
  • the connector advantageously is an elongated element as exemplified in Figures 1 -4.
  • the shape of the elongated element will further affect the size of the frictional force between the inserted connector and the foam element opening.
  • the elongated element has a shape that facilitates a large surface contact area with the foam element opening, whereby a larger frictional force may be obtained.
  • the elongated element has a cylindrical shape or ovalic shape, or a columnar or prism shape approximating a cylindrical shape, such as an elongated element having a cross-section shape selected from the group of: circular, ovalic, and polygonal, such as hexagonal, octagonal, decagonal, dedecagonal.
  • the frictional force between the inserted connector and the foam element is further determined by the size of the connector.
  • the connector advantageously has a cross-sectional size or diameter of below 7 cm.
  • the connector is an elongated element with a first end and second end, said element having a cross-section shape selected from the group of: circular, ovalic, and polygonal, such as hexagonal, octagonal, decagonal, dedecagonal.
  • the connector is cylindrical with a first cylindrical end, a second cylindrical end, and a radially extending flange placed between the two cylindrical ends.
  • the connector diameter is below 7 cm, more preferably below 6, 5, 4, cm, and most preferably equal to or below 3.2 cm.
  • the foam Upon compressive contact between the surface of the foam element, and the flange, the foam is configured to be compressed and the connector flange partially depressed into the compressed planar surface of the foam element, if the hardness of the flange is higher than the hardness of the foam.
  • the degree of deformation and countersinking of the connector flange into the foam element surface will also depend on the shape and size of the connector.
  • the flange advangeously is planar with a regular shape, such as a planar circular, ovalic, or polygonal shape, such as hexagonal, octagonal, decagonal, dedecagonal.
  • the thickness of the flange should be small, but still thick enough to provide mechanical strength and robustness to the flange, such that it is adapted as a stopper.
  • the radially extending flange is planar.
  • the radially extending flange has a shape selected from the group of: circular, ovalic, and polygonal, such as hexagonal, octagonal, decagonal, dedecagonal.
  • the thickness of the radially extending flange is below 4 mm, more preferably below 3 or 2 mm, and most preferably equal to or below 1 .5 mm.
  • the frictional force between the inserted connector and the foam element opening will depend on the length of the connector end, since this influences on the amount of surface area in contact between connector and opening.
  • the longer the connection end the stronger the frictional force.
  • the versatility and the possible connection options between multiple connectors and multiple foam element openings increases, the shorter the length of the connection ends, since the risk of connectors blocking a neighboring foam element opening is reduced.
  • the kit advantageously comprises one or more connectors, where both ends are longer, where both ends are shorter, and/or where the first end is longer and the second end is shorter.
  • connectors are: a connector where both ends are 10 cm long, a connector where both ends are 3.4 cm long, and a connector where the first end is 10 cm long, and the second end is 3.4 cm long.
  • the first end and the second end of the connector are symmetrical or assym metrical.
  • the first end of the connector has a length of between 15-2 cm, more preferably between 1 1 -3 cm, such as a length of 10 cm or 3.4 cm.
  • the second end of the connector has a length of between 15-2 cm, more preferably between 1 1 -3 cm, such as a length of 10 cm or 3.4 cm.
  • the frictional force between the connector and foam element opening will also depend on the connector material.
  • the connector material is selected from the group of: wood, and polymers, such as thermoplastic polymers, such as acrylonitrile butadiene styrene (ABS).
  • ABS acrylonitrile butadiene styrene
  • the connectors are advantageously light-weight, which may be obtained by the connectors being hollow.
  • a hollow polymer is simply and cost-efficiently manufactured by e.g. injection molding.
  • a hollow connector further has the advantage that it provides space, or a compartment, for storing auxiliary parts, such as electronic elements.
  • the hollow connector is assembled from multiple parts, thereby facilitating a storage compartment in the interior of the connector.
  • the connector is a hollow element.
  • the connector is made by an injection molding process.
  • Figures 16-18 show embodiments of the connector, including exemplified dimensions of the lengths, diameters (0) and curvature (R).
  • Figures 16-17 are examples of connectors where the first end and the second end of the connector are symmetrical
  • Figure 18 shows an embodiment of a connector, where the first end and the second end of the connector are assymmetrical.
  • the foam elements may also be referred to as building elements.
  • the versatility of the kit of parts, and the number of structures that can be build, will depend on the foam element shapes and the number of openings the planar surfaces of the foam element comprises.
  • a cylinder may be build by assembling two half cylinders, and a complex prism may be obtained by assembling a cuboid and a triangular prism.
  • the foam element shape is selected from the group of: cube, cuboid, square prism, prism, cylinder, half cylinder, cone, pyramid, disk, and any combinations thereof.
  • the at least one planar surface of the foam element comprises 2 or more openings, such as 3, 4, 5, 6,
  • each foam element can be connected at one or more of the surfaces. This may be obtained by the cylindrical opening extending from a first planar surface of the foam element to the opposite surface of the foam as illustrated Figures 1 -2.
  • the at least one foam element opening extends from a first planar surface of the foam element to the opposite surface of the foam element, optionally a second planar surface of the foam element.
  • a foam element shaped as a wheel i.e. a disk with a concentric opening for the axis of rotation, is advantageous.
  • the foam element shape is a disk, and the at least one foam element opening is concentric with the disk.
  • the frictional force between the inserted connector and the foam element opening will depend on the relative dimensions of the connector, flange, and foam element opening.
  • the contact area between the connector and opening is advantageously large.
  • the shape of the opening is identical to the shape of the connector end for insertion into the opening.
  • the foam element opening has a smaller cross-sectional dimension than the connector.
  • the opening may be cylindrical with a cross-sectional diameter of 2.7 cm, and the connector end may be cylindrical with a cross-sectional diameter of 3.2 cm.
  • the shape of the at least one opening of the foam element is identical to the shape of the connector ends.
  • the foam element opening has a cross-sectional size dimension, which is smaller than the cross-sectional size of the connector.
  • the foam element opening has a cross-sectional size dimension, which is at least 0.2, 0.3, 0.4, or 0.5 mm smaller than the cross-sectional size of the connector.
  • Figures 1 1 -15 show embodiments of the foam elements, including exemplified dimensions of the lengths, diameters (0) and curvature (R), and the position and dimensions of the openings.
  • the flange of the connector is configured as a stopper for the insertion of the connector.
  • the flange further provides stability between neighboring connected foam elements.
  • the efficiency of the stopper i.e. the risk of the flange being pushed into the opening, as well as the stability of the connection will depend on the relative dimensions of the flange, and foam element opening.
  • the connector flange has a radially extending portion, which is at least 2 or 3 mm larger than the cross-sectional size of the foam element opening.
  • the foam element opening may be cylindrical with a diameter of 2.7 cm, and the flange may be shaped as a disk having a diameter of 2.9 cm or 3 cm.
  • the connector flange has a radially extending portion, which is at least 2, 3, 4, or 5 mm larger than the cross-sectional size of the foam element opening, preferably more than 3 mm.
  • the deformation properties of a foam element will depend on the foam material properties, such as the hardness, the microstructure of the foam, as well as the manufacturing process.
  • Table 1 shows a hardness rating scale, which is applicable for solid foams. The hardness may be measured based on the method of JIS S 6050 SRIS-0101 (GS-701 N).
  • Solid foam materials of EVA copolymers i.e. ethylene-vinyl acetate, also known as poly (ethylene-vinyl acetate)
  • EVA foams may be configured to be resilient, elastically deformable or compressable, at the same time as having a high hardness, and is furthermore eco friendly materials.
  • the foam material is selected from the group of: EVA copolymers.
  • the foam material has a hardness rating above about 00 20, more preferably above about O 20, and most preferably above about 10, 20, 30, 40, 45, or 50 on the Shore C scale, where the hardness is based on the method of JIS S 6050 SRIS-0101 (GS-701 N).
  • the frictional force between the connector and the foam element opening will also depend on the foam element material, and the interface structure between the foam and connector, which again will depend on the morphological structure or roughness of the foam surface.
  • the morphological structure of a foam element surface depends on the manufacturing process.
  • the foam elements and foam element openings are manufactured by a mechanical cutting process. Due to the cutting process, the foam elements will have a surface roughness. This is in contrast to foams produced by casting or molding, where the molded foam element will have no or insignificant surface roughness, and the surface of the molded foam element is smooth with no open cell structures or pores.
  • the shape of the foam elements is obtained by a mechanical cutting process, such as stamping, punching, and/or blade cutting.
  • the surface roughness of the foam elements further has the advantage of facilitating handling, assembly, and disassembly of the foam elements, as well as increasing the robustness of the foam elements.
  • the deformation properties of a foam element may also depend on other properties of the foam material, such as hardness, density, elongation, tensile strength, tear strength, and compression strength.
  • foam materials having a density in the range of 100 kg/m 3 based on method of ASTM D3575 may be obtained with foam materials having a density in the range of 100 kg/m 3 based on method of ASTM D3575.
  • the foam material has a density between 50-200 kg/m 3 , more preferably between 75-150 kg/m 3 .
  • Advantageous deformation properties may be obtained with foam materials having an elongation in the range of 86% based on method of ASTM D3575.
  • the foam material has an elongation between 60-95%, more preferably between 70-90%.
  • foam materials having a tensile strength in the range of 1474 kPa based on method of ASTM D3575.
  • the foam material has a tensile strength between 1200- 1600 kPa, more preferably between 1300-1500 kPa.
  • foam materials having a tear strength in the range of 7.06 N/mm based on method of ASTM D3575 may be obtained with foam materials having a tear strength in the range of 7.06 N/mm based on method of ASTM D3575.
  • the foam material has a tear strength between 5-10 N/mm, more preferably between 6-9 N/mm.
  • foam materials having a 25% compression strength in the range of 182 kPa based on method of ASTM D3575.
  • the foam material has a 25% compression strength between 150-210 kPa, more preferably between 160-200 kPa.
  • the kit of parts advantageously comprises a foam element which can be configured to a rotatable wheel.
  • rotatable wheel is meant a wheel that is rotatable around a rotation axis, more specifically a central and concentrically positioned rotation axis, such as a rotation shaft.
  • the connector according to the present disclosure may be adapted as a rotation shaft.
  • the ability, or resistance, of the wheel to rotate will depend on the frictional rotation resistance between the wheel and the rotation shaft. Inherently, the frictional rotation resistance will depend on the fastening mechanism between the wheel and the rotation shaft. If the frictional rotation resistance is high, the wheel will have a high resistance to rotate, corresponding to a high rolling resistance. If the frictional rotation resistance is low, the wheel will have a low rolling resistance. For example, the frictional rotation resistance between the concentric opening of a disk shaped foam element and a connector attached as a rotation shaft, may be high.
  • the high frictional rotation resistance may be due to a high surface contact area between the connector and the opening is high, and due to the surface structure or morphology of the foam element opening, which may have a roughness or a granulated surface structure.
  • a connector according to the present disclosure applied as a rotation shaft for a wheel may result in a wheel with low rotateability and which is essentially non-rotatable.
  • a high rotation resistance may be advantageous for functional toys for small children, where rapid rolling may be dangerous.
  • the cylindrical connectors 2 are applied as rotational shafts.
  • the fastening mechanism between the wheel and rotational shaft advantageously is configured to have adjustable frictional resistance. This may be obtained by a fastening mechanism, such as a snap-fit, between the rotation shaft and a bushing placed in the concentric opening of the wheel.
  • FIG. 5 An embodiment of a rotatable foam wheel 4 and a rotation shaft 2 where the frictional resistance of the fastening mechanism is adjustable, is illustrated in Figure 5, where Figure 5A shows the wheel assembled, or connected to a rotational shaft or axis, such that the wheel is rotationally attached to the cylindrical shaft, and Figure 5B shows the wheel and rotational shaft before assembly.
  • the foam element, or wheel is shaped as a disk having two planar surfaces 4a with a concentric opening 5 for rotational attachment to the rotation shaft or connector 2.
  • a cylindrical bushing 5a is placed in the concentric opening 5, thus functioning as a lining or coating surface to be in contact with the rotation shaft.
  • Figure 6 shows an embodiment of the bushing placed in the concentric opening of the wheel, where Figure 6A shows a close-up of the bushing surface, which is in rotational contact with the rotational shaft, in perspective view, and Figure 6B a close-up in a schematic perspective view.
  • the rotation shaft is attached to the bushing by a snap- fit fastening mechanism.
  • the snap-fit fastening is obtained between a protrusion of the bushing 8 (as shown in Figure 6), and a groove 9,10 in the rotation shaft or connector circumference (as shown in Figure 5).
  • the contact area between the rotation shaft and the bushing is essentially the contact between the protrusion and groove.
  • the frictional rotation resistance of the wheel is dependent on the contact area between the protrusion and groove.
  • Figure 6 shows an embodiment of a foam wheel 4, where the cylindrical inner surface 7 of the opening 5, comprises a cylindrical bushing 5a comprising a protrusion 8.
  • the protrusion is disposed along at least a part of the perimeter of the cylindrical bushing, and is disposed concentric with the cylindrical perimeter of the opening 5.
  • the shape and length of the protrusion along the perimeter will affect the frictional resistance and the force needed to fastened the rotation shaft and bushing, i.e. the force needed to obtain the snap-fit.
  • the protrusion extends along the full perimeter of the cylindrical surface, the protrusion is ring shaped, and a higher force will be needed to obtain the snap-fit. If the protrusion is disposed and extending along only a part of the perimeter of the surface, less force is needed to obtain the snap-fit.
  • the protrusion is configured such that the snap-fit force needed is possible with two hands and no further tools, and optionally possible to assembly and dissassembly by children.
  • a suitable snap-fit force for the assembly and disassembly of the wheel and rotation shaft is between 20-80 N (newton), and preferably is ca. 60 N. This is advantageously obtained by an elongated convex shaped protrusion disposed partially along the perimeter of the bushing.
  • the protrusion of the bushing has an elongated convex shape and is disposed partially along the perimeter of the bushing. In a further embodiment, the protrusion extends along below 25% of the perimeter of the bushing, more preferably below 20, 15, 10%.
  • the bushing is elastically deformable and may be deformed as a spring.
  • the bushing area adjacent to the protrusion it is advantageous that when force is applied to form the snap-fit, the protrusion and the bushing is elastically deformable. This may be obtained by one or more bushing openings 5b adjacent to the protrusion as illustrated in Figure 6.
  • the bushing openings will facilitate elastical deformation of the bushing, such that less force is needed to form the snap-fit.
  • the bushing openings are placed symmetrically around the protrusion and has the shape of slits as illustrated in Figure 6.
  • the bushing further comprises one or more bushing openings adjacent to the protrusion.
  • the bushing comprises two openings placed symmetrically around the protrusion.
  • the two openings are slits extending perpendicular to the elongation of the protrusion.
  • the bushing and rotational shaft is made of the same material.
  • the bushing and rotational shaft is made of the same material.
  • a fastening mechanism with adjustable frictional resistance of a single rotation shaft may be obtained as illustrated in Figures 7-8.
  • the fastening mechanism between the wheel and rotational shaft has adjustable frictional resistance, if the bushing placed in the concentric opening of the wheel facilitates multiple fastening configurations.
  • Figure 7 shows a cross-sectional view of the snap-fit attachment.
  • Figure 7 shows an embodiment of a foam wheel 4 with a cylindrical bushing 5a rotationally attached to a rotation shaft, optionally an end 2b of a cylindrical connector 2.
  • the shaft or the end of the connector is illustrated to the left of the connector flange 3.
  • the bushing comprises a convex protrusion 8
  • the second end of the connector comprises a first circular groove 9 configured to form a snap-fit with the protrusion.
  • the snap-fit is indicated by a circle in Figure 7A.
  • the connector further comprises at least one further circular groove in the connector circumference, such as a second circular groove 10, as illustrated in Figures 7-8.
  • the second circular groove is in parallel to the first circular groove, and has a groove depth different from the first groove depth, as illustrated in Figures 7-8.
  • the second groove is configured to form a second snap-fit with the ring shaped protrusion. Due to the different groove depth, the contact area between the groove and protrusion of the snap-fit is different, and thus the frictional resistance, or rolling resistance, will be different.
  • the snap-fit is formed between a first groove 9 with a smaller groove depth than the second groove 10, and in Figure 8, the snap-fit is formed with the second groove (as indicated by the circle).
  • the contact area is larger between the protrusion and the second groove ( Figure 8), than the contact area between the protrusion and the first groove ( Figure 7).
  • the frictional force, or rolling resistance, within the snap-fit of Figure 8 is therefore larger, than the frictional force within the snap-fit of Figure 7.
  • the fastening mechanism is a snap-fit between a protrusion of the bushing to at least one groove in the connector circumference, wherein the groove depth is adjustable.
  • the connector circumference comprises at least two parallel grooves, wherein the depth of the first groove is different from the depth of the second groove.
  • the frictional resistance of the snap-fit is adjusted by translating the wheel along the longitudinal direction of the rotation shaft.
  • the groove depths are in a certain range.
  • a first groove depth of 0.8 mm may result in a rolling resistance suitable for a children ride-on
  • a second groove depth of 1.5 mm may result in a rolling resistance suitable for a children’s walker or baby walker.
  • the depth of the first groove is between 0.5-3 mm, more preferably between 1 -2 mm, and most preferably is 1.5 mm, and wherein the depth of the second groove is between 0.2-1.5 mm, more preferably between 0.4-1 mm, and most preferably is 0.8 mm.
  • one or more of the grooves may comprise multiple second protrusions placed within the groove channel, or groove surface, as illustrated in Figure 19.
  • the multiple second protrusions will further increase the frictional rotation resistance.
  • the second protrusions have the form of a pattern of parallel ridges oriented perpendicular to the groove direction as illustrated in Figure 19, and further advantageously, the height of the second protrusions is around 0.5 mm.
  • Such second protrusions may generate a sound when the rotation shaft is rotated within the bushing, thereby providing a further entertainment aspect to the functional toy.
  • the surface of the least one groove comprises multiple second protrusions.
  • the multiple second protrusions form a pattern of parallel ridges oriented perpendicular to the groove direction.
  • the height of the second protrusions is between 0.1 -2 mm, more preferably between 0.2-1 mm, and most preferably is 0.5 mm.
  • wheels with adjustable rolling resistance can be assembled from the kit of the present disclosure.
  • a baby walker or children’s walker may be adjusted to the walking speed of the child.
  • a toddler that is learning to walk can use the presently disclosed kit of parts as a baby walker where one or more of the wheels attached by means of the high friction assembly such the child does not fall when trying to walk supporting itself to the baby walker.
  • the presently disclosed kit of parts is probably more fun to play with if all the wheels rotate with a low friction.
  • a kit of parts for a functional toy comprising:
  • one or more connector(s) having a first end, a second end, and a radially extending flange placed between the two ends,
  • one or more foam element(s) with at least one essentially planar surface, said surface comprising at least one opening extending perpendicular to the planar surface for receiving at least the first end of the connector,
  • connector flange is configured as a stopper for the insertion of the first end into the foam element opening
  • kit of parts are configured such that when the first end is inserted into the foam element opening to the stopper position, and a further suitable amount of force is applied to the connector in the direction of insertion, the flange of the connector is countersunk into the surface of the foam element, and remains countersunk after the further force is removed due to the frictional force between the connector and the opening.
  • kits according to item 1 wherein the suitable force is configured to be below 80 N, more preferably below 75, 70, 65 N, and most preferably below 60 N. 3. The kit according to any of the preceding items, wherein the connector is countersunk into the surface of the foam element by elastic deformation of the foam element.
  • the connector is an elongated element with a first end and second end, said element having a cross-section shape selected from the group of: circular, ovalic, and polygonal, such as hexagonal, octagonal, decagonal, dedecagonal.
  • cylindrical with a first cylindrical end, a second cylindrical end, and a radially extending flange placed between the two cylindrical ends.
  • the radially extending flange has a shape selected from the group of: circular, ovalic, and polygonal, such as hexagonal, octagonal, decagonal, dedecagonal.
  • the second end of the connector has a length of between 15-2 cm, more preferably between 1 1 -3 cm, such as a length of 10 cm or 3.4 cm.
  • the shape of the at least one opening of the foam element is identical to the shape of the connector ends.
  • the connector flange has a radially extending portion, which is at least 2, 3, 4, or 5 mm larger than the cross-sectional size of the foam element opening, preferably more than 3 mm.
  • kit configured such that when the first end of a connector is received within a first opening of a first foam element, and the second end of the connector is received within a first opening of a second foam element, the adjacent surfaces of the first and second foam elements are abutting.
  • foam element shape is selected from the group of: cube, cuboid, square prism, prism, cylinder, half cylinder, cone, pyramid, disk, and any combinations thereof.
  • essentially planar surface of the foam element comprises 2 or more openings, such as 3, 4, 5, 6, 7, 8, 9, 10, 1 1 , 12, 13, 14, 15, 16, 17, 18, 19, or 20 openings.
  • the at least one foam element opening extends from a first essentially planar surface of the foam element to the opposite surface of the foam element, optionally a second essentially planar surface of the foam element.
  • kit of parts for a functional toy comprising:
  • a wheel comprising solid foam having a concentric opening for the axis of rotation
  • kit of parts is configured such that the frictional resistance of the fastening mechanism is adjustable.
  • the connector circumference comprises at least two parallel grooves, wherein the depth of the first groove is different from the depth of the second groove.
  • the depth of the first groove is between 0.5-3 mm, more preferably between 1 -2 mm, and most preferably is 1.5 mm
  • the depth of the second groove is between 0.2-1 .5 mm, more preferably between 0.4-1 mm, and most preferably is 0.8 mm.
  • the foam material has a hardness rating above about OO 20, more preferably above about O 20, and most preferably above about 10, 20, 30, 40, 45 or 50 on the Shore C scale.
  • the connector material is selected from the group of: wood, and polymers, such as thermoplastic polymers, such as acrylonitrile butadiene styrene (ABS).
  • ABS acrylonitrile butadiene styrene
  • a functional toy comprising the kit of parts according to any of the preceding items.

Landscapes

  • Toys (AREA)

Abstract

La présente invention concerne des kits de pièces pour un jouet fonctionnel, tel qu'un trotteur, un wagon d'aide à la marche, des porteurs, des jouets sur roues, des chevaux à bascule et des jouets aidant les enfants à ramper, se tenir debout, rouler, sauter, grimper et apprendre l'équilibre. Dans un premier aspect, la présente invention concerne un kit de pièces pour un jouet fonctionnel comprenant : - un ou plusieurs raccords présentant une première extrémité, une seconde extrémité et une bride s'étendant radialement placée entre les deux extrémités, un ou plusieurs éléments en mousse présentant au moins une surface sensiblement plate, ladite surface comprenant au moins une ouverture s'étendant perpendiculairement à la surface plate pour recevoir au moins la première extrémité du raccord, la bride de raccord étant configurée sous la forme d'une butée pour l'insertion de la première extrémité dans l'ouverture d'élément en mousse, et le kit de pièces étant configuré de sorte que lorsque la première extrémité est insérée dans l'élément en mousse s'ouvrant vers la position de butée, et une autre quantité appropriée de force est appliquée au raccord dans la direction d'insertion, la bride du raccord est fraisée dans la surface de l'élément en mousse, et reste fraisée une fois que l'autre force est retirée en raison de la force de frottement entre le raccord et l'ouverture.
EP19714678.0A 2018-04-05 2019-04-05 Kit de pièces pour jouets fonctionnels polyvalents Active EP3773959B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP18165820 2018-04-05
PCT/EP2019/058651 WO2019193157A1 (fr) 2018-04-05 2019-04-05 Kit de pièces pour jouets fonctionnels polyvalents

Publications (3)

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EP3773959A1 true EP3773959A1 (fr) 2021-02-17
EP3773959C0 EP3773959C0 (fr) 2023-06-07
EP3773959B1 EP3773959B1 (fr) 2023-06-07

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US (1) US20210016197A1 (fr)
EP (1) EP3773959B1 (fr)
JP (1) JP7352296B2 (fr)
KR (1) KR20200139675A (fr)
CN (1) CN111936214A (fr)
AU (1) AU2019249947B2 (fr)
WO (1) WO2019193157A1 (fr)

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JP1637142S (fr) * 2019-01-17 2019-07-22
CN111192482A (zh) * 2020-03-03 2020-05-22 温州大学 一种用于学习汉字的教学积木板
JP7102574B1 (ja) * 2021-04-14 2022-07-19 株式会社バンダイ 装飾玩具キット及び装飾玩具

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US3563582A (en) * 1968-08-05 1971-02-16 Grace W R & Co Spline joint
DE2324140C3 (de) * 1973-05-12 1980-05-29 Artur Dr.H.C. 7244 Waldachtal Fischer Spielzeug-Landschaftsplatte mit mehreren aus geschäumten Kunststoff bestehenden Bauplatten
DE2335908A1 (de) * 1973-07-14 1975-01-30 Artur Fischer Verbindungselement zur verbindung geschaeumter kunststoffteile
DE2344713A1 (de) * 1973-09-05 1975-03-13 Artur Fischer Verbindungselement fuer geschaeumte kunststoffteile
TW420621B (en) * 1999-01-15 2001-02-01 Interlego Ag A toy building set
JP3802775B2 (ja) 2001-04-19 2006-07-26 マスセット株式会社 組立式ブロック構造
KR100726062B1 (ko) * 2002-01-07 2007-06-08 컨넥터세트리미티드파트너쉽 로드 및 커넥터 조립 완구 세트
GB2408219B (en) * 2003-11-24 2005-10-05 Jen-Tsu Kuo Foam material modular toy structure
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US20070173095A1 (en) 2006-01-20 2007-07-26 Rifael Bin-Nun Reusable block and fastener system
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Publication number Publication date
AU2019249947B2 (en) 2023-06-01
EP3773959C0 (fr) 2023-06-07
KR20200139675A (ko) 2020-12-14
US20210016197A1 (en) 2021-01-21
JP2021519651A (ja) 2021-08-12
JP7352296B2 (ja) 2023-09-28
AU2019249947A1 (en) 2020-10-08
EP3773959B1 (fr) 2023-06-07
WO2019193157A1 (fr) 2019-10-10
CN111936214A (zh) 2020-11-13

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