EP0611321B1 - Schraube für ein spielzeugkonstruktionsset - Google Patents

Schraube für ein spielzeugkonstruktionsset Download PDF

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Publication number
EP0611321B1
EP0611321B1 EP92923709A EP92923709A EP0611321B1 EP 0611321 B1 EP0611321 B1 EP 0611321B1 EP 92923709 A EP92923709 A EP 92923709A EP 92923709 A EP92923709 A EP 92923709A EP 0611321 B1 EP0611321 B1 EP 0611321B1
Authority
EP
European Patent Office
Prior art keywords
screw
shank
toy building
building set
section
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
EP92923709A
Other languages
English (en)
French (fr)
Other versions
EP0611321A1 (de
Inventor
Flemming Hojberg Olsen
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.)
Interlego AG
Lego AS
Original Assignee
Interlego AG
Lego AS
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 Interlego AG, Lego AS filed Critical Interlego AG
Publication of EP0611321A1 publication Critical patent/EP0611321A1/de
Application granted granted Critical
Publication of EP0611321B1 publication Critical patent/EP0611321B1/de
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
    • A63H33/00—Other toys
    • A63H33/04—Building blocks, strips, or similar building parts
    • A63H33/042—Mechanical, electrical, optical, pneumatic or hydraulic arrangements; Motors
    • 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

  • the invention concerns a toy building set comprising a screw with a shank with threads for screwing into another of the elements of the toy building set with a preformed threaded hole, so that the screw is capable of resisting a force acting transversely to the shank of the screw at a distance from the element.
  • the International Patent Application WO-A-9009825 discloses a screw which blocks the flexible properties of an element. Here too, the tension is applied to the screw in the longitudinal direction.
  • the diameter of the threaded section of the screw is determined by the dimensions of the element into which the screw is inserted. With respect to the overall structure the dimensions of this element are often to be minimized, so that the diameter of the threaded section is likewise minimized.
  • the moment of force on the screw is determined partly by the size of the transverse component of the force acting on the screw, partly by the distance between the point of application of the force and the contact point of the shank with the element (the arm on which the force acts) in which the screw is secured.
  • the object of the invention is therefore to provide a toy building set with a screw, said screw being constructed such that it is better capable of resisting forces acting transversely to the longitudinal direction of the screw and at a distance from that of the elements of the toy building set in which the screw is placed in a preformed threaded hole.
  • the engagement area consists of a conical engagement face on the screw.
  • the conical engagement face can advantageously be caused to engage a corresponding conical engagement face on the element in which the screw is placed.
  • the conical engagement face on the screw can advantageously form a transition between the small diameter of the threaded section and a shank section having a diameter greater than said diameter. This is expedient in particular if the latter is not subject to any diameter restrictions.
  • Special screws and wheels for use in machines may have a form which has important similarities with the screw according to the ivention.
  • Such an example is known from "La construction procedurachanique” (1982), Editions de l'Usine salt, page 48, fig. 6, in which a knurl wheel is disclosed.
  • the invention concerns hollow screws of plastics, and that said prior art concerns solid metal items. If the bending strength of a metal rod is to be increased, the diameter will be increased. Part of the bending moment can be transferred to the tractive force if the rod is embodied with a stepped configuration between two rod parts having different diameters; however, the bending strength of the rod will never reach that of a rod having a uniform diameter corresponding to the diameter of the thickest rod part.
  • Two complementary, conical engagement areas on the screw and the building element, respectively, will usually be preferable.
  • the pitch of the threads will typically be relatively great, so that the engagement faces can advantageously be formed with complementary depressions and projections, such that the screw is retained in its inserted position when the depressions and the projections are engaged.
  • the projection may expediently be shaped as a round knob.
  • the depression can be formed asymmetrically with a steep stop face and an inclined guide face. Sufficient retention of the screw can be achieved by these features, even if the threads on it are just formed by about one convolution.
  • the screw can hereby be manufactured by injection moulding using simple tools.
  • the invention furthermore relates to the use of a screw as stated in claim 9.
  • Fig. 1 shows a screw according to the invention. It comprises a screw head 12 with a shank having a threaded section 24 with one thread 25 at the end facing away from the screw head 12.
  • the threaded section 24 terminates downwardly in a conical section 22 which is formed with two diametrically positioned locking holes 23.
  • the conical section 22 constitutes a borderline section between the threaded section 24 having a relatively small diameter and the rest of the screw shank having a greater diameter.
  • the screw 10 of the invention is preferably manufactured from plastics by injection moulding and it is therefore usually hollow.
  • the shank section 14 of the screw between the head 12 and the conical face 22 thus has a greater diameter than the threaded section 24.
  • the shank section 14 has an annular bead 19 which is formed with a guide face 21 and a stop face 20.
  • the shank 14 merges into a shank section 16 via a conical guide face 15, the shank section 16 having the same diameter as the bead 19.
  • a hub 40 shown in fig. 4 can be received and rotatably secured on the shank portion 14 positioned between the bead 19 and the head 12.
  • the guide face 21 permits such reception, while the blocking face 20 prevents removal of the hub 40 again.
  • the guide face 15 and the shank section 14 correspond to the hole in the hub 40, and the complementary guide face (not shown) of the hole can advantageously be recessed with respect to the outer side of the hub to provide a better guide between the parts during the assembling process.
  • the head 12 on the screw 10 preferably has longitudinal grooves so that the screw will have a better finger grip when the screw 10 is to be screwed into another element.
  • the end face 11 of the screw head 12 may be formed with an opening which is adapted to receive a specially constructed tool by means of which the screw can be tightened.
  • the screw is adapted to be received in a threaded hole 35 on another element 30 incorporated in the toy building set, said threaded hole 35 having a conical section which is complementary to the conical section 22 of the screw, and which is formed with two diametrically positioned locking bosses 37. These locking bosses are adapted to be received in the locking holes 23 of the screw.
  • the locking bosses 37 are preferably in the form of small rotational-symmetric knobs, while the holes 23 will be asymmetric.
  • the holes will thus have a guide face serving to guide the locking bosses 37 into engagement, and a stop face counteracting further tightening. This is possible i.a. because the materials are flexible, and because the thread 25 has a great pitch. It will be clear to a skilled person that it will also be possible to provide the screw with locking bosses, while the conical section 36 on the toy building element 30 is then provided with complementary locking holes.
  • a vehicle built-with the toy building set may be considered as being bodies consisting of several individual subbodies. These subbodies may e.g. consist of the actual vehicle bottom with a superstructure as well as each of the four wheels.
  • a load e.g. caused by a drop
  • torsional forces will occur between the subbodies incorporated in the body.
  • the moments depend partly on the size of the forces, partly on the arm on which the forces act. Since the engagement area of the screw (the conical section 22 in fig.
  • Fig. 2 shows a preferred embodiment of the screw of the invention, where a conical engagement area 22 is provided between the threaded section 24 of the screw and the rest of the shank 14 of the screw.
  • the screw is screwed into the element 30 and thus received and retained in the threaded hole 35 and the threaded coupling 42. Since two complementary conical sections 22 and 36 are involved, the engagement area of the screw will likewise be a continuous conical face. In practice, however, there will often be a gap between the two faces, but owing to the flexibility of the screw the faces 22 and 36 will be pressed together under external, mechanical forces.
  • Fig. 3 shows another embodiment of a screw according to the invention, where the screw via its threaded section 24 is threadedly coupled with the threaded section of the screw hole 35.
  • the shank 14 of the screw has the same diameter as the threaded section 24 of the screw.
  • Relief takes place here through a bead 41 with conical faces, the engagement face 22 being one of these.
  • the threaded hole on the element 30 terminates in a step-wise expansion, so that the engagement face here is just formed by a ring-shaped contact line 37.
  • This embodiment provides substantially the same technical effect as the embodiment shown in fig. 2, since the point of application 22b will be positioned on the contact line 37.
  • Fig. 5 shows an alternative embodiment of the screw shown in fig. 1, where the threaded section 24 of the screw merges into the shank section 14 of the screw via a conical section 22.
  • the building element 30, into which the screw has been screwed, has a threaded hole 35 with a likewise conical section 36.
  • the screw is coupled with the building element 30 via the threaded coupling 42, and the additional fixing between the screw and the element is provided by a pair of locking bosses 39, which are arranged in the bottom of the threaded hole and are adapted to be received in the tip of the screw in the two locking holes 43 formed there. It is hereby ensured that the force provided by a wheel mounted on the screw does not loosen the screw from the building element 30. This might otherwise occur because of the great pitch of the thread 25. This great pitch is caused by the wish that it should be easy to mount the screw during play and that the production of the screw should be facilitated, it being possible to manufacture it by means of simple tools.

Landscapes

  • Toys (AREA)
  • Connection Of Plates (AREA)
  • Dowels (AREA)

Claims (7)

  1. Bauspielzeugsatz, aufweisend ein Bauelement (30) mit einer vorgeformten Gewindebohrung (35) und einem Schraubteil (10) mit einem hohlen Schaft (14) mit einem Gewindeteil (24) an dem einen Ende, um diesen in die Gewindebohrung im Bauelement (30) einzuschrauben, wobei der Schraubenteil aus einem thermoplastischen Material gebildet ist und einen Hohlkörper unter Einschluss des Schaftes (14) aufweist, wobei der Schaft (14) einen Eingriffsbereich (22) zum Eingriff mit einem komplementären Eingriffsbereich (35) an dem Bauelement aufweist, wenn der Schraubteil (10) in die Gewindebohrung (35) in dem Bauelement (30) eingeschraubt wird, dadurch gekennzeichnet, dass der Eingriffsbereich (22) an dem Schraubteil (10) die Form eines konusförmigen, ringförmigen Kragens aufweist, der im Abstand von dem Ende ausgebildet ist und in seinem Radius mit steigendem Abstand von dem Gewindeabschnitt (24) zunimmt.
  2. Bauspielzeugsatz nach Anspruch 1, dadurch gekennzeichnet, dass der konische Stirnteil kontinuierlich ausgebildet ist.
  3. Bauspielzeugsatz nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Kragen einen Übergang zwischen dem Gewindeteil (25) mit dem einen Durchmesser und einem Schaftteil (40) mit einem Durchmesser grösser als dem des Schaftteils bildet.
  4. Bauspielzeugsatz nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Eingriffsbereiche (22, 36) mit komplementären Eindrückungen (37) und Vorsprüngen (23) ausgebildet sind.
  5. Bauspielzeugsatz nach Anspruch 4, dadurch gekennzeichnet, dass der Eingriffsbereich 22 an dem Schraubteil (10) wenigstens einen Eindruck (23) und dass der Eingriffsbereich (36) des anderen Elementes (30) wenigstens einen Knopf (37) zur Aufnahme des Eindrucks (23) aufweisen
  6. Bauspielzeugsatz nach Anspruch 5, dadurch gekennzeichnet, dass der Eindruck (23) asymmetrisch so über den Umfang ausgebildet ist, dass eine steile Seitenfläche, die als Anschlagfläche dient, und eine geneigte Seitenfläche entsteht, die als Führungsfläche beim wechselweisen Verriegeln der Elemente durch den Eingriff zwischen dem Knopf (37) und dem Eindruck (23) dient.
  7. Bauspielzeugsatz nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass der Gewindeteil (24) des Schaftes (14) durch eine einzige Umwicklung um den Schaft der Schraube ausgebildet ist.
EP92923709A 1991-11-06 1992-11-05 Schraube für ein spielzeugkonstruktionsset Expired - Lifetime EP0611321B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DK183091A DK168194B1 (da) 1991-11-06 1991-11-06 En skrue til et legetøjsbyggesæt
DK1830/91 1991-11-06
PCT/DK1992/000321 WO1993008887A1 (en) 1991-11-06 1992-11-05 A screw for a toy building set

Publications (2)

Publication Number Publication Date
EP0611321A1 EP0611321A1 (de) 1994-08-24
EP0611321B1 true EP0611321B1 (de) 1997-10-22

Family

ID=8108368

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92923709A Expired - Lifetime EP0611321B1 (de) 1991-11-06 1992-11-05 Schraube für ein spielzeugkonstruktionsset

Country Status (9)

Country Link
EP (1) EP0611321B1 (de)
JP (1) JP3161603B2 (de)
CN (1) CN1030039C (de)
AU (1) AU2942092A (de)
DE (1) DE69222862T2 (de)
DK (1) DK168194B1 (de)
HK (1) HK1004595A1 (de)
SG (1) SG87738A1 (de)
WO (1) WO1993008887A1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5816882A (en) * 1994-01-06 1998-10-06 Meccano, S.A. Construction toy kit
FR2749186B1 (fr) * 1996-05-31 1998-08-21 Asco Systeme de montage et de blocage d'une piece de jouet sur un element de base d'un jouet modulaire
EP1464369A1 (de) * 2003-04-04 2004-10-06 Theodorus Suibertus Anthonius ROLF Spielbaustein, dafür geeignete Schraube und Schraubgerät
DE102004061614B4 (de) * 2004-12-17 2009-11-26 Ab Skf Vorrichtung
DE102011078660B4 (de) * 2011-07-05 2013-10-17 Metabowerke Gmbh Werkzeugkopf für eine Sanierfräsmaschine sowie eine Sanierfräsmaschine
CN104526197A (zh) * 2014-12-04 2015-04-22 张斐斐 一种焊机用轮轴装置
RU2598133C1 (ru) * 2015-03-20 2016-09-20 Елена Геннадьевна Баталина Полый игрушечный строительный блок
DE102016200354A1 (de) * 2016-01-14 2017-07-20 Bruder Spielwaren Gmbh + Co. Kg Dreheinrichtungs-Baugruppe für ein Spielzeug

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4299051A (en) * 1977-09-09 1981-11-10 Tonka Corporation Mountable wheel for toy vehicle
US4551110A (en) * 1984-05-24 1985-11-05 Cpg Products Corp. Rotatable cam for use in a toy construction set
JPS6287181A (ja) * 1985-10-12 1987-04-21 株式会社アベロ、ラボラトリ− 玩具などの組立体
DK87289A (da) * 1989-02-24 1990-08-25 Lego As Sammenkoblingsorgan til et legetoejsbyggesaet

Also Published As

Publication number Publication date
AU2942092A (en) 1993-06-07
JPH07502427A (ja) 1995-03-16
CN1030039C (zh) 1995-10-18
WO1993008887A1 (en) 1993-05-13
DK168194B1 (da) 1994-02-28
DE69222862D1 (de) 1997-11-27
HK1004595A1 (en) 1998-11-27
DE69222862T2 (de) 1998-03-19
CN1076638A (zh) 1993-09-29
DK183091A (da) 1993-05-07
SG87738A1 (en) 2002-04-16
DK183091D0 (da) 1991-11-06
JP3161603B2 (ja) 2001-04-25
EP0611321A1 (de) 1994-08-24

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