EP0319706B1 - Dispositif d'accouplement d'une roue sur un pivot pour jouets à roues, en particulier des maquettes d'automobiles - Google Patents

Dispositif d'accouplement d'une roue sur un pivot pour jouets à roues, en particulier des maquettes d'automobiles Download PDF

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Publication number
EP0319706B1
EP0319706B1 EP88118275A EP88118275A EP0319706B1 EP 0319706 B1 EP0319706 B1 EP 0319706B1 EP 88118275 A EP88118275 A EP 88118275A EP 88118275 A EP88118275 A EP 88118275A EP 0319706 B1 EP0319706 B1 EP 0319706B1
Authority
EP
European Patent Office
Prior art keywords
pivot
wheel
collar
head
frusto
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.)
Expired - Lifetime
Application number
EP88118275A
Other languages
German (de)
English (en)
Other versions
EP0319706A2 (fr
EP0319706A3 (en
Inventor
Mario Besana
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.)
B Burago SpA
Original Assignee
B Burago SpA
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 B Burago SpA filed Critical B Burago SpA
Priority to AT88118275T priority Critical patent/ATE85530T1/de
Publication of EP0319706A2 publication Critical patent/EP0319706A2/fr
Publication of EP0319706A3 publication Critical patent/EP0319706A3/en
Application granted granted Critical
Publication of EP0319706B1 publication Critical patent/EP0319706B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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

Definitions

  • This invention relates to a device for coupling a pivot to a wheel in wheeled toys, particularly model automobiles according to the preamble of the main claim.
  • such toy automobiles generally have their wheels snap-mounted onto pivots rigid with the floor of the toy.
  • Such a pivot-wheel coupling device is cheap to manufacture and assemble, but it is also relatively easy to separate the parts. This can be a problem if the child playing with the model automobile is particularly young because of his known tendency to place every toy in his mouth. If he places a wheel of the model automobile in his mouth he needs to exter only minimum force to separate it from its pivot and then swallow it with the risk of suffocation/
  • US-A 2 778 159 One known device is shown in US-A 2 778 159.
  • This device comprises a pivot having a head, and a wheel having a hub with a bore arranged to receive said pivot, and wherein the pivot head comprises an abutment step.
  • Wheel hole, pivot head, and pivot are of substantially cylindrical shape.
  • the cylindrical shapes involve high precision in the assemblying operations to avoid damages. High precision can not be afforded by assemblying machines working at the high speeds imposed by mass production articles of low costs as toys.
  • the hub provides a restricted aperture at outer end of its bore, said aperture being defined by an inturned lip or flange.
  • the inturned lip must have a substantial thickness, which involve the use of greater forces in the assembly operation and - being high speeds involved - the damage risk is simply transferred from the playing phase to the production phase and from the hub to the pivot (which in low scale toys can be very thin).
  • the device of the invention is identified in its novel aspect by the characterizing clause of the main claim.
  • a steerable toy vehicle wherein the wheels are snap mounted on their axles in a manner to permit wobbling of the wheels by up to about 20° from the straight away direction. Wobbling is obtained by providing inter communicating opposite conical holes in the wheel.
  • the wheel is fixed to the axle by snap action through the passage defined by the intersection of the conical holes. In view of the conical shape of the outer hole the wheel can be esily separated from the axle even by a young child.
  • the model automobile comprises a floor 1 (only partly shown in Figure 1) carrying pivots 2 for coupling to the wheels of the model automobile.
  • Figure 1 shows only a portion of the rear end of said floor, from which there extends from that side 4 of said bracket which is orthogonal to the plane in which the floor 1 lies, a stiffening rib 5 being provided on the rear face of the side 4, which is the opposite face to that carrying the pivot.
  • the floor 1, pivot 2, bracket 3 and rib 4 are constructed in a single piece by moulding.
  • the pivot 2 comrises a shank 6 followed by a groove and supporting a hemispherical head. At the base of hemispherical head 8 and beyond the groove 7 there is a collar 9 of trapezoidal cross-section.
  • Said pivot 2 is arranged to cooperate with a wheel 10 having a hub 11 from which ribs 12 extend for stiffening a structure 13 which represents the wheel tyre on the outside 14 of the wheel.
  • the hub 11 comprises a frustum-conical bore 15 with its vertex opposite a flared mouth 16 into which the hemispherical head of the pivot 2 penetrates.
  • the forward end 17 of said frustum-conical bore 15 opens into a cylindrical cavity 18 coaxial to said bore and having a greater diameter than said forward end 17 of the bore 15. In this manner a step 19 is formed, against which the collar 9 of trapezoidal cross-section rests when the wheel 10 has been assembled on the pivot 8.
  • the wheel 10 is to be mounted on the pivot 2.
  • the hemispherical head 8 of the pivot 2 penetrates into the frustum-conical bore 15 of the hub 11 and compels the collar 9, constructed of resilient material as are all the other parts described herein, to bend towards the groove of the pivot 2.
  • the collar 9 constructed of resilient material as are all the other parts described herein, to bend towards the groove of the pivot 2.
  • said collar returns to its initial rest position as it is no longer urged into a bent state, and thus abuts against the step 19 formed between the cavity 18 and the frusto-conical bore 15. The wheel 10 thus becomes locked on the pivot 2.
  • the collar 9 In carrying out the opposite procedure, is to remove the wheel 10 from the pivot 2, the collar 9 encounters the step 19 and provides resistance to removal. As the pulling force applied to the wheel 10 is increased, said collar 9 bends towards the hemispherical head in proportion to the applied force until completely reversed, and only then can the wheel 10 be removed form the pivot 2.
  • the described coupling device has high resistance to separation of the parts (more than 10 kg) while allowing simple assembly of the wheel 10 on the pivot 2 because of the shape of the collar 9 and the frustum-conical bore 15 through the hub 11.
  • the device can be applied, with functional results, in particular to injection moulded plastics parts of very small diameter and size.

Landscapes

  • Toys (AREA)

Claims (3)

  1. Un dispositif d'accouplement de roue à pivot pour des jouets à roues, particulièrement pour les automobiles modèles, comprenant un pivot (2) solidaire du plancher de l'automobile (1) et ayant une tête (1), et une roue ayant un moyeu (11) avec un alésage (15) prévu pour recevoir ce pivot (2), et où la tête de pivot (1) comprend un gradin de butée à son extrémité intérieure, caractérisé en ce que le gradin de butée est formé sur une collerette (9) de section transversale trapézoïdale prévue à la base de la tête (1), qui a une forme sensiblement hémisphérique, l'alésage (15) comprenant une partie cylindrique extérieure (18) et une partie tronconique (15), ces parties étant en communication coaxiale et mutuelle, la partie cylindrique (18) ayant un diamètre supérieur à l'extrémité intérieure de l'alésage tronconique pour former ainsi un gradin antagoniste (19) contre lequel la collerette (9) de section transversale trapézoïdale vient buter lorsque la roue (10) a été accouplée au pivot (2).
  2. Un dispositif selon la revendication 1, caractérisé en ce que le pivot (2) dépasse d'un côté (4) d'un support en forme de L (3) fixé au plancher (1) de l'automobile modèle.
  3. Un dispositif selon la revendication 2, caractérisé en ce que ce côté (4) du support (3) a une nervure de renfort (5) sur la face opposée à celle d'où dépasse le pivot.
EP88118275A 1987-12-11 1988-11-03 Dispositif d'accouplement d'une roue sur un pivot pour jouets à roues, en particulier des maquettes d'automobiles Expired - Lifetime EP0319706B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88118275T ATE85530T1 (de) 1987-12-11 1988-11-03 Rad-zapfen- verbindungsvorrichtung fuer spielzeuge mit raedern, insbesondere automobilmodellen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2286687U 1987-12-11
IT8722866U IT213142Z2 (it) 1987-12-11 1987-12-11 Dispositivo di accoppiamento perno ruota per giocattoli con ruote, in particolare automodelli.

Publications (3)

Publication Number Publication Date
EP0319706A2 EP0319706A2 (fr) 1989-06-14
EP0319706A3 EP0319706A3 (en) 1990-04-25
EP0319706B1 true EP0319706B1 (fr) 1993-02-10

Family

ID=11201344

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88118275A Expired - Lifetime EP0319706B1 (fr) 1987-12-11 1988-11-03 Dispositif d'accouplement d'une roue sur un pivot pour jouets à roues, en particulier des maquettes d'automobiles

Country Status (5)

Country Link
EP (1) EP0319706B1 (fr)
AT (1) ATE85530T1 (fr)
DE (1) DE3878424T2 (fr)
ES (1) ES2038732T3 (fr)
IT (1) IT213142Z2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20213249U1 (de) * 2002-08-26 2004-01-15 Artur Fischer Tip Gmbh & Co. Kg Spielzeugradnabe
US11577913B2 (en) * 2020-03-12 2023-02-14 Brown International Corporation, Llc Systems and methods for moving objects along a predetermined path

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2778159A (en) * 1954-03-31 1957-01-22 Kaysun Inc Wheel mounting
FR1258912A (fr) * 1960-03-08 1961-04-21 Etablissements J Arnould Soc D Perfectionnement aux automobiles jouets
US3263363A (en) * 1961-03-06 1966-08-02 Fisher Price Toys Inc Wheel assembly
FR1311992A (fr) * 1961-11-02 1962-12-14 Jeu de construction à éléments assemblables
US3214220A (en) * 1963-12-27 1965-10-26 Clark Mfg Co J L Plastic wheel with sheet metal sidewall
US3608236A (en) * 1969-09-03 1971-09-28 Mattel Inc Steerable toy vehicle
ES199969Y (es) * 1973-02-08 1976-01-01 Alessandro Quercetti & C. - Fabbrica Giocattoli Juguete de engranajes para ninos.

Also Published As

Publication number Publication date
ATE85530T1 (de) 1993-02-15
EP0319706A2 (fr) 1989-06-14
ES2038732T3 (es) 1993-08-01
DE3878424T2 (de) 1993-06-03
EP0319706A3 (en) 1990-04-25
DE3878424D1 (en) 1993-03-25
IT8722866V0 (it) 1987-12-11
IT213142Z2 (it) 1989-10-27

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