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DK168194B1 - A screw for a toy building set - Google Patents

A screw for a toy building set Download PDF

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Publication number
DK168194B1
DK168194B1 DK183091A DK183091A DK168194B1 DK 168194 B1 DK168194 B1 DK 168194B1 DK 183091 A DK183091 A DK 183091A DK 183091 A DK183091 A DK 183091A DK 168194 B1 DK168194 B1 DK 168194B1
Authority
DK
Denmark
Prior art keywords
screw
abutment
toy building
shaft
recess
Prior art date
Application number
DK183091A
Other languages
Danish (da)
Other versions
DK183091A (en
DK183091D0 (en
Inventor
Flemming H Jbjerg Olsen
Original Assignee
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 Lego As filed Critical Lego As
Publication of DK183091D0 publication Critical patent/DK183091D0/en
Priority to DK183091A priority Critical patent/DK168194B1/en
Priority to EP92923709A priority patent/EP0611321B1/en
Priority to SG9608322A priority patent/SG87738A1/en
Priority to DE69222862T priority patent/DE69222862T2/en
Priority to HK98103231.6A priority patent/HK1004595B/en
Priority to AU29420/92A priority patent/AU2942092A/en
Priority to PCT/DK1992/000321 priority patent/WO1993008887A1/en
Priority to JP50810593A priority patent/JP3161603B2/en
Priority to CN 92114317 priority patent/CN1030039C/en
Publication of DK183091A publication Critical patent/DK183091A/en
Application granted granted Critical
Publication of DK168194B1 publication Critical patent/DK168194B1/en

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Classifications

    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63HTOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H33/00Other toys
    • A63H33/04Building blocks, strips, or similar building parts
    • A63H33/042Mechanical, electrical, optical, pneumatic or hydraulic arrangements; Motors
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63HTOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H17/00Toy vehicles, e.g. with self-drive; ; Cranes, winches or the like; Accessories therefor
    • A63H17/26Details; Accessories
    • A63H17/262Chassis; Wheel mountings; Wheels; Axles; Suspensions; Fitting body portions to chassis

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

Description

i DK 168194 B1in DK 168194 B1

Opfindelsen angår en skrue til et legetøjsbyggesæt og om-· fattende et skaft med gevind til indskruning i et andet af legetøjsbyggesættets elementer med et forud tildannet skruehul, hvorved skruen er i stand til at modstå en på 5 tværs af skruens skaft i afstand fra elementet virkende kraft.BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to a screw for a toy building set and comprising a shaft with threads for screwing in another of the toy building elements with a pre-formed screw hole, whereby the screw is able to withstand a transverse actuator of the screw spaced apart from the element. power.

Det er kendt fra legetøjsbyggesæt af konstruktionstypen at skrue elementer sammen. Således er der eksempler på, 10 at elementer, der udsættes for særlige belastninger, foruden ved ordinære koblingsorganer, såsom koblingstappe og komplementære receptororganer, også kobles sammen ved hjælp af til formålet udformede skruer. Disse skruer skrues ind i særlige, forud tildannede skruehuller i an-15 dre af legetøjsbyggesættets byggeelementer. Det er også kendt at anvende skruer til fastgørelse af hjul til vogn-* bunde opbygget af legetøjsbyggesættets elementer. Den indbyrdes forstærkede fastgørelse af elementerne sker for så vidt på fuldtud tilfredsstillende vis. En sådan be-20 lastning optages i skruen i dennes længderetning, og skruens trækabsorberende egenskaber er fuldt tilfredsstillende. En sådan skrue kendes fx fra patentskrift nr.It is known from construction-type toy building kits to screw elements together. Thus, there are examples of the fact that elements subjected to particular loads, in addition to ordinary coupling means, such as coupling pins and complementary receptor means, are also coupled by means of screws designed for the purpose. These screws are screwed into special, pre-formed screw holes in the other of the toy building kit elements. It is also known to use screws for fastening wheels to carriage bases constructed from the elements of the toy building set. The reinforcement of the elements is mutually reinforced to a fully satisfactory extent. Such a load is absorbed in the screw in its longitudinal direction and the tensile absorbing properties of the screw are fully satisfactory. Such a screw is known, for example, from patent specification no.

US 4,551,110.US 4,551,110.

25 Fra patentskrift nr. US 5,049,104 kendes en skrue, der spærrer for et elements fjedrende egenskaber. Også her påføres skruen et træk i længderetningen.From U.S. Patent No. 5,049,104, a screw is known which blocks the resilient properties of an element. Here too, the screw is applied a longitudinal pull.

Derimod besidder skruer, der belastes på tværs af skaf-30 tets længderetning, en signifikant svaghed. Diameteren af skruens gevindafsnit bestemmes af dimensionerne for det element, hvori skruen indføres. Med hensyn til den samlede konstruktion ønskes dette elements dimensioner ofte minimeret, hvorfor gevindafsnittets diameter ligeledes 35 minimeres. Kraftmomentet på skruen bestemmes dels af størrelsen af den tværgående komposant af den på skruen virkende kraft, dels af afstanden mellem kraftens an- DK 168194 B1 2 grebspunkt og skaftets kontaktpunkt med elementet (armen, hvorpå kraften virker), hvori skruen er fastgjort. Med kravet om en lille diameter af gevindafsnittet vil skruer, der fx anvendes som hjulaksler, have en tendens til 5 at knække i det område, der er beliggende omkring elementets overflade, når skruen påvirkes enten af store, statiske belastninger, eller ved impulspåvirkninger stammende fx fra fald. Et tilsvarende problem vil være til stede, hvis skruen anvendes til at overføre kræfter i 10 skruens tværretning.By contrast, screws loaded across the longitudinal direction of the shaft have a significant weakness. The diameter of the screw thread section is determined by the dimensions of the element into which the screw is inserted. With regard to the overall construction, the dimensions of this element are often desired to be minimized, so the diameter of the thread section is also minimized. The torque of the screw is determined partly by the magnitude of the transverse component of the force acting on the screw and partly by the distance between the force of engagement of the force and the contact point of the shaft with the element (the arm on which the force acts) in which the screw is fixed. With the requirement of a small diameter of the thread section, screws used, for example, as wheel axles, will tend to break in the area located around the surface of the element when the screw is affected either by large, static loads or by impulse stress, e.g. from fall. A similar problem will be present if the screw is used to transfer forces in the transverse direction of the screw.

Opfindelsen har derfor til formål at angive en skrue til et legetøjsbyggesæt, hvor skruen er udformet, så den er bedre i stand til at modstå kræfter virkende på tværs af 15 skruens længderetning og i afstand fra det af legetøjs- byggesættets elementer, hvori skruen er anbragt i et forud tildannet skruehul.The invention therefore aims to provide a screw for a toy building set in which the screw is designed to be better able to withstand forces acting across the longitudinal direction of the screw and at a distance from the elements of the toy building set in which the screw is disposed. in a pre-formed screw hole.

Dette formål opnås, som angivet i krav l's kendetegnende 20 del, idet anlægsområdets beliggenhed - i større radial afstand end gevindafsnittets radius - medfører, at det resulterende kraftmoment reduceres som følge af, at den resulterende arm bliver mindre. Da skruen er fremstillet som et hult plastlegeme, vil selve aftrapningen bibringe 25 skruen en øget styrke i aftrapningsområdet.This object is achieved, as stated in the characterizing part 20 of claim 1, in that the location of the abutment - at a greater radial distance than the radius of the thread section - causes the resulting torque to be reduced as a result of the resulting arm being reduced. Since the screw is manufactured as a hollow plastic body, the step-up itself will give the screw an increased strength in the step-down area.

Anlægsområdet vil ved en foretrukken udførelses form bestå af en konisk anlægsflade på skruen. Den koniske anlægsflade kan med fordel bringes til anlæg mod en tilsvarende 30 konisk anlægsflade på elementet, hvori skruen anbringes.In a preferred embodiment, the installation area will consist of a tapered abutment surface on the screw. The tapered abutment surface can advantageously be brought into abutment against a corresponding tapered abutment surface on the element in which the screw is placed.

Den koniske anlægsflade på skruen kan med fordel danne en overgang mellem gevindafsnittets lille diameter og et skaftafsnit med en i forhold dertil større diameter. Dette er især hensigtsmæssigt, hvis sidstnævnte ikke er be-35 grænset af restriktive bindinger på diameteren.The tapered abutment surface of the screw can advantageously form a transition between the small diameter of the thread section and a shaft section of a larger diameter relative thereto. This is particularly useful if the latter is not limited by restrictive bonds on the diameter.

DK 168194 B1 3DK 168194 B1 3

Specialskruer og -hjul til anvendelse i maskiner kan have en form, som har væsentlige lighedspunkter med skruen ifølge opfindelsen. Et sådant eksempel kendes fra "La construction mécanique" (1982), Editions de l'Usine Nou-5 velle, side 48, fig. 6, hvor et molettehjul er vist. Man skal være opmærksom på, at opfindelsen vedrører hule skruer af plast, og at denne kendte teknik vedrører massive metalemner. Hvis bøjningsstyrken for en metalstav ønskes øget, vil man øge diameteren. Man vil kunne omsæt— 10 te en del af bøjningsmomentet til trækkraften ved at udforme staven med en aftrapning mellem to stavpartier med forskellig diameter; men stavens bøjningsstyrke vil aldrig nå op på bøjningsstyrken af en stav med en ensartet diameter svarende til diametern af det tykkeste stav-15 parti. Anderledes forholder det sig med hule plastemner, hvilket er det tekniske område for opfindelsen. Her vil der være tale om emner af en given vægtykkelse. Ved at øge emnernes diameter vil man derfor ikke opnå samme forøgelse af bøjningsstyrken. Derimod vil en aftrapning mel-20 lem to partier med forskellig diameter resultere i en styrkeforøgelse, så at styrken af det pågældende parti overstiger styrken af det afsnit, der har størst diameter. Ud over en momentaflastning vil man ved plastskruer ifølge opfindelsen også opnå en direkte styrkeforøgelse i' 25 afsnittet, hvor aftrapningen er udformet.Special screws and wheels for use in machines may have a shape which has significant similarities to the screw according to the invention. One such example is known from "La construction mécanique" (1982), Editions de l'Usine Nou-5 velle, page 48, fig. 6, where a mole wheel is shown. It should be noted that the invention relates to hollow plastic screws and that this prior art relates to solid metal workpieces. If the bending strength of a metal rod is desired to be increased, the diameter will be increased. It will be possible to convert a portion of the bending moment to the traction force by forming the rod with a step-down between two rod portions of different diameters; but the bending strength of the rod will never reach the bending strength of a rod of a uniform diameter corresponding to the diameter of the thickest rod portion. Different is the case with hollow plastic blanks, which is the technical field of the invention. Here, there will be topics of a given wall thickness. Therefore, increasing the diameter of the workpieces will not achieve the same increase in the bending strength. By contrast, a step between two different diameter portions will result in an increase in strength so that the strength of that portion exceeds the strength of the largest diameter section. In addition to a torque relief, plastic screws according to the invention will also achieve a direct increase in strength in the section where the stepping is designed.

Ifølge opfindelsen vil to komplementære, koniske anlægsområder på henholdsvis skruen og byggeelementet normalt være at foretrække, men anlægsområdet kan fx være ring-30 formet og tilvejebragt ved, at skruen udformes med en trinvis udvidelse. Sådanne skarpe kanter på plastkonstruktioner vil med de fleste plastmaterialer medføre, at konstruktionen får en svækkelse - kærwirkning - i området omkring den skarpe kant. Derfor vil den koniske an-35 lægsflade være at foretrække i praksis.According to the invention, two complementary tapered abutment areas on the screw and the construction element, respectively, will normally be preferred, but the abutment area may, for example, be annular and provided by the screw being designed with a stepwise extension. Such sharp edges on plastic structures will, with most plastic materials, cause the construction to weaken - kneading effect - in the area around the sharp edge. Therefore, the tapered contact surface will be preferable in practice.

DK 168194 B1 4DK 168194 B1 4

Da legetøjsbyggesættet ved den foretrukne udførelsesform normalt vil være fremstillet ved plastsprøjtestøbning, vil gevindets stigning typisk være relativ stor, hvorfor anlægsfladerne med fordel kan være tilvirket med komple-5 mentære fordybninger og fremspring, så at skruen fastholdes i sin iskruede stilling, når fordybningerne og fremspringene er bragt i indgreb. Dette er især hensigtsmæssigt, når skruen anvendes som en hjulaksel, idet skruen, afhængig af i hvilken side af et køretøj den er placeret, 10 vil blive påvirket af en kraft stammende fra friktion med hjulets nav, og som vil medføre, at skruen ellers vil løsnes eller tilspændes. Dette undgås med de komplementære fordybninger og fremspring, som er beskrevet ovenfor. · Fremspringet kan hensigtsmæssigt være udformet som en 15 rund knop. Fordybningen vil kunne udformes asymmetrisk med en stejl stopflade og en skrå ledeflade. Med disse foranstaltninger kan en tilstrækkelig fastholdelse af skruen opnås, selv om gevindet på denne kun udgøres af ca. én snoning. Dermed kan skruen fremstilles ved sprøj-20 testøbning ved anvendelse af enkle værktøjer.Since in the preferred embodiment, the toy building set will normally be made of plastic injection molding, the pitch of the thread will typically be relatively large, so the abutment surfaces may advantageously be made with complementary recesses and projections so that the screw is held in its ice-screwed position when the recesses and projections is brought into action. This is particularly useful when the screw is used as a wheel axle, since the screw, depending on which side of a vehicle it is located, will be affected by a force arising from friction with the wheel hub and which will cause the screw to otherwise loosen or tighten. This is avoided with the complementary recesses and projections described above. · The projection may conveniently be formed as a 15 round knob. The recess can be designed asymmetrically with a steep stop surface and an inclined guide surface. With these measures, a sufficient tightening of the screw can be achieved, even if the thread on it is only approx. one twist. Thus, the screw can be made by injection molding using simple tools.

Opfindelsen skal beskrives i det efterfølgende i forbindelse med foretrukne udførelsesformer og under henvisning til tegningen, hvor 25 fig. 1 fra siden viser en foretrukken udførelsesform for en skrue ifølge opfindelsen til anvendelse i legetøjsbyggesæt ; 30 fig. 2 skematisk viser koblingen mellem skrue og skruehul for den i fig. 1 viste skrue; fig. 3 skematisk viser koblingen mellem en skrue og et skruehul for en første alternativ udførelsesform for en 35 skrue ifølge opfindelsen; DK 168194 B1 5 fig. 4 skematisk viser koblingen mellem en skrue og et skruehul for en anden alternativ udførelsesform for en skrue ifølge opfindelsen; 5 fig. 5 skematisk viser koblingen mellem en skrue og et skruehul for en tredie alternativ udførelsesform for en skrue ifølge opfindelsen; fig. 6 skematisk viser koblingen mellem en skrue og et 10 skruehul for en fjerde alternativ udførelsesform for en skrue ifølge opfindelsen; fig. 7 i perspektiv viser, hvorledes en skrue ifølge opfindelsen sammen med et hjulnav anbringes i et andet af 15 legetøjsbyggesættes byggeelementer; og fig. 8 skematisk viser en alternativ udformning af skruen* ifølge opfindelsen og skruehullets sammenlåsning.The invention will be described in the following with reference to preferred embodiments and with reference to the drawing, in which: FIG. 1 is a side view of a preferred embodiment of a screw according to the invention for use in toy building kits; FIG. 2 schematically shows the coupling between screw and screw hole for the one shown in FIG. 1 screw; FIG. 3 shows schematically the coupling between a screw and a screw hole for a first alternative embodiment of a screw according to the invention; DK 168194 B1 5 fig. 4 schematically shows the coupling between a screw and a screw hole for another alternative embodiment of a screw according to the invention; 5 FIG. 5 schematically shows the coupling between a screw and a screw hole for a third alternative embodiment of a screw according to the invention; FIG. 6 shows schematically the coupling between a screw and a screw hole for a fourth alternative embodiment of a screw according to the invention; FIG. 7 is a perspective view showing how a screw according to the invention is placed together with a wheel hub in another of the building elements of a toy building set; and FIG. 8 schematically shows an alternative embodiment of the screw * according to the invention and the interlocking of the screw hole.

20 På fig. 1 ses en skrue 10 ifølge opfindelsen. Den omfatter et skruehoved 12, med et skaft, der i den bort fra skruehovedet 12 vendende del har et gevindafsnit 24 med én gevindsnoning 25. Gevindafsnittet 24 afsluttes indadtil i et konisk afsnit 22, hvori er tilvirket to diame-25 trait beliggende låsehuller 23. Det koniske afsnit 22 udgør et grænseafsnit mellem gevindafsnittet 24 med en relativ lille diameter og den øvrige del af skruens skaft, der har en større diameter. Skruen 10 ifølge opfindelsen vil fortrinsvis være fremstillet ved plast-30 sprøjtestøbning, hvorfor den vil være hul. Skruens skaftafsnit 14 mellem hovedet 12 og den koniske flade 22 har således en større diameter end gevindafsnittet 24. Skaftafsnittet 14 har en rundtgående vulst 19, som er udformet med en ledeflade 21 og en stopflade 20. Skaftet 14 går 35 ved en foretrukken udførelsesform over i et skaftafsnit 16 via en konisk ledeflade 15, hvor skaftafsnittet 16 har samme diameter som vulsten 19.20 In FIG. 1 shows a screw 10 according to the invention. It comprises a screw head 12, with a shaft, which in the portion facing away from the screw head 12 has a thread section 24 with a single threading 25. The thread section 24 is closed inwardly in a conical section 22, in which two diametrically located locking holes 23 are made. The conical section 22 constitutes a boundary section between the thread section 24 of a relatively small diameter and the other portion of the shaft of the screw having a larger diameter. The screw 10 according to the invention will preferably be made of plastic injection molding, which is why it will be hollow. Thus, the shaft portion 14 of the head 12 between the head 12 and the tapered surface 22 has a larger diameter than the thread portion 24. The shaft portion 14 has a circumferential bead 19 which is formed with a guide surface 21 and a stop surface 20. The shaft 14 extends 35 in a preferred embodiment. a shaft portion 16 via a tapered guide surface 15, the shaft portion 16 having the same diameter as the bead 19.

DK 168194 B1 6DK 168194 B1 6

Idet skruen 10 har den fra fig. 1 viste form, vil et nav 40, der er vist på fig. 7, kunne optages og drejeligt fastholdes på den mellem vulsten 19 og hovedet 12 beliggende skaftdel 14. Ledefladen 21 vil tillade en sådan op-5 tagelse, mens spærrefladen 20 vil hindre, at navet 40 atter fjernes. Ledefladen 15 og skaftafsnittet 16 vil mod- * svare hullet i navet 40, idet hullets komplementære ledeflade (ej vist) med fordel kan være forsænket i forhold til navets yderside, så der tilvejebringes en bedre fø-10 ring delene imellem under samleprocessen.As the screw 10 is shown in FIG. 1, a hub 40 shown in FIG. 7, could be accommodated and pivotally secured to the shaft portion 14 located between the bead 19 and the head 12. The guide surface 21 will allow such uptake, while the locking surface 20 will prevent the hub 40 from being removed again. The guiding surface 15 and the shaft portion 16 will correspond to the hole in the hub 40, the complementary guiding surface of the hole (not shown) being advantageously recessed relative to the outside of the hub, so as to provide a better guide between the parts during the assembly process.

Hovedet 12 på skruen 10 vil fortrinsvis have langsgående riller, så at skruen får et bedre fingergreb, når skruen 10 skal skrues i et andet element. Som det fremgår af 15 fig. 7, kan skruehovedet 12's endeflade 11 være udformet med en åbning, der er indrettet til at kunne optage et til formålet udformet værktøj, hvormed skruen kan tilspændes. På fig. 7 ses, hvorledes skruen er indrettet til at kunne optages i et skruehul 35 på et andet i legetøjs-20 byggesættet indgående element 30, hvor skruehullet 35 har et med skruens koniske afsnit 22 komplementært, konisk afsnit 36, der er udformet med to diametralt beliggende låseknaste 37. Disse låseknaste er indrettet til at kunne optages i skruens låsehuller 23. Låseknasterne 37 vil 25 fortrinsvis være i form af små rotationssymmetriske knopper, mens hullerne 23 vil være asymmetriske. Hullerne vil således have en ledeflade, hvormed. låseknasterne 37 ledes ind i indgreb, og en stopflade, der modvirker yderligere tilspænding. Dette kan blandt andet lade sig gøre, fordi 30 materialerne er fleksible, og fordi gevindet 25 har en kraftig stigning. Det vil være klart for en fagmand, at det også vil være muligt at forsyne skruen med låseknaster, mens det koniske afsnit 36 på legetøjsbyggeelementet 30 så forsynes med komplementære låsehuller.The head 12 of the screw 10 will preferably have longitudinal grooves so that the screw will have a better finger grip when the screw 10 is to be screwed into another element. As can be seen from FIG. 7, the end face 11 of the screw head 12 may be formed with an opening adapted to accommodate a purpose-designed tool with which the screw can be tightened. In FIG. 7 shows how the screw is adapted to be accommodated in a screw hole 35 on another element 30 included in the toy 20 kit set, the screw hole 35 having a conical section 22 complementary to the screw conical section 36 formed with two diametrically located locking lugs 37. These locking lugs are arranged to be accommodated in the locking holes 23. The locking lugs 37 will preferably be in the form of small rotationally symmetrical knobs, while the holes 23 will be asymmetrical. The holes will thus have a guide surface with which. the locking knobs 37 are guided into engagement and a stop surface which discourages further tightening. This can be done, among other things, because the 30 materials are flexible and because the thread 25 has a sharp increase. It will be apparent to those skilled in the art that it will also be possible to provide the screw with locking lugs, while the conical section 36 of the toy building member 30 is then provided with complementary locking holes.

Det vil kunne forstås, at skruen kan anvendes til andre formål end netop som aksel for et hjul, men opfindelsens 35 7 DK 168194 B1 principper lader sig nok bedst illustrere i den sammenhæng. Et med et legetøjsbyggesæt opbygget køretøj kan betragtes som værende legemer bestående af flere individuelle underlegemer. Disse underlegemer kan fx bestå af 5 selve vognbunden med overbygning samt hvert af de fire hjul. Med en påvirkning af det samlede legeme, fx stammende fra et fald, vil der opstå vridningskræfter mellem de i legemet indgående underlegemer. Under faldpåvirk-ningen vil disse kræfter omsættes til momenter, der vir-10 ker underlegemerne imellem. Momenterne vil dels afhænge af kræfternes størrelse, dels af den arm, hvorpå kræfterne virker. Ved at skruens anlægsområde (det koniske afsnit 22 i fig. 1) er beliggende i større radial afstand fra skruens længdeakse end gevindafsnittet 24's radius, 15 vil kraftens angrebspunkt flyttes fra gevindafsnittets afslutning 22a til overgangen 22b mellem det koniske område 22 og skaftafsnittet 14. Hermed vil størrelsen af den arm, hvorpå kraften virker, reduceres, samtidigt med at angrebspunktet 22b vil transformere en bøjningskraft, 20 der virker i skruen 10's tværretning i afstand fra byggeelementet 30, til en trækkraft, der virker i skruens længderetning.It will be appreciated that the screw can be used for purposes other than just as a shaft for a wheel, but the principles of the invention are probably best illustrated in this context. A vehicle built with a toy kit can be considered as being made up of several individual sub-bodies. These sub-bodies may, for example, consist of 5 the carriage floor itself with superstructure as well as each of the four wheels. With an impact on the overall body, for example arising from a fall, torsional forces will arise between the sub-bodies included in the body. Under the influence of the fall, these forces will be converted into moments acting between the sub-bodies. The moments will depend partly on the size of the forces and partly on the arm on which the forces act. Because the screw area of the screw (the conical section 22 of Fig. 1) is located at a greater radial distance from the longitudinal axis of the screw than the radius of the thread section 24, the point of attack of the force is moved from the end 22a of the thread section to the transition 22b between the tapered area 22 and the shaft section 14. For example, the size of the arm on which the force acts will be reduced, at the same time that the point of attack 22b will transform a bending force 20 acting in the transverse direction of the screw 10 away from the building element 30 into a traction force acting longitudinally of the screw.

På fig. 2 ses en foretrukken udførelsesform for skruen 25 ifølge opfindelsen, hvor der mellem skruens gevindafsnit 24 og den øvrige del af skruens skaft 14 findes et konisk anlægsområde 22. Skruen er skruet i elementet 30 og således optaget i og fastholdt i skruehullet 35 og gevindkoblingen 42. Da der er tale om to komplementære koniske af-30 snit 22 og 36, vil skruens anlægsområde ligeledes være en sammenhængende konisk flade. I praksis vil der imidlertid ofte være luft mellem de to flader; men som følge af skruens fleksibilitet vil fladerne 22 og 36 blive presset mod hinanden under ydre, mekaniske påvirkninger.In FIG. 2, a preferred embodiment of the screw 25 according to the invention is shown, where between the thread portion 24 of the screw and the other part of the screw shaft 14 there is a tapered abutment area 22. The screw is screwed into the element 30 and thus accommodated in and retained in the screw hole 35 and the threaded coupling 42. Since there are two complementary tapered sections 22 and 36, the abutment area of the screw will also be a continuous tapered surface. In practice, however, there will often be air between the two surfaces; but due to the flexibility of the screw, the faces 22 and 36 will be pressed against each other under external mechanical stresses.

På fig. 3 ses en anden udførelsesform for en skrue ifølge opfindelsen, hvor skruen via sit gevindafsnit 24 er bragt 35 DK 168194 B1 8 i gevindmæssig sammenkobling med skruehullet 35's gevindafsnit. Det ses her, at skruens skaft 14 har samme diameter som skruens gevindafsnit 24. Aflastningen sker her gennem en vulst 41 med koniske flader, hvoraf anlægsfla-5 den 22 er den ene. Gevindhullet på elementet 30 afsluttes i en trinvis udvidelse, hvorfor anlægsfladen her kun udgøres af en ringformet kontaktlinie 37. Ved denne udførelsesform vil man opnå i hovedsagen samme tekniske virkning som i forbindelse med den i fig. 2 viste udførelses-10 form, idet angrebspunktet 22b vil være beliggende på kontaktlinien 37.In FIG. 3, another embodiment of a screw according to the invention is shown, in which the screw is threaded via its thread section 24 in threaded connection with the thread section 35 of the screw hole 35. It can be seen here that the shaft 14 of the screw has the same diameter as the thread section 24. The relief here is carried out through a bead 41 with tapered surfaces, of which the contact surface 5 is one. The threaded hole of the element 30 is terminated in a stepwise extension, so that the abutment surface here is constituted only by an annular contact line 37. In this embodiment, the same technical effect as in connection with the one shown in FIG. 2, the point of attack 22b being located on the contact line 37.

Den i fig. 4 viste konstruktion kan betragtes som værende komplementær med den i fig. 3 viste konstruktion, idet 15 skruehullet 35 her er udformet med det koniske afsnit 36, mens overgangen mellem gevindafsnittet 24 og den øvrige del af skruens skaft 14 sker trinvis. Også her vil der være en ringformet kontaktlinie 37, hvorpå angrebspunktet 22b vil være beliggende. Skruen vil være i indgreb med 20 byggeelementet via gevindkoblingen 42.The FIG. 4 may be considered to be complementary to that of FIG. 3, the screw hole 35 is formed here with the conical section 36, while the transition between the thread section 24 and the other part of the shaft 14 takes place stepwise. Here, too, there will be an annular contact line 37 upon which the point of attack 22b will be located. The screw will engage the building element via the threaded coupling 42.

På fig. 5 ses en skrue, hvor gevindafsnittet 24 går over i den øvrige del af skruens skaft 14 i en trinvis diameterforøgelse. Skruehullet 35's diameter vil, som det ses, 25 være konstant helt ud til elementets overflade, hvorfor et kraftaflastende anlægsområde 43 vil være skiveformet, og selve angrebspunktet 22b vil være beliggende i yderkanten af det skiveformede område 43.In FIG. 5, a screw is seen in which the threaded portion 24 goes into the other part of the screw shaft 14 in a stepwise increase in diameter. As seen, the diameter of the screw hole 35 will be constant all the way to the surface of the element, therefore a force-relieving abutment area 43 will be disc-shaped and the point of attack 22b itself will be located at the outer edge of the disc-shaped region 43.

30 På fig. 6 ses en konstruktion svarende til den i fig. 5 viste, hvor angrebspunktet 22b er flyttet endnu længere væk fra skaftets længdeakse, idet skaftafsnittet 14 er forsynet med et ringformet materialeparti 38, så bredden af det skiveformede anlægsområde 43 er forøget. Også her 35 vil skruen være fæstnet til elementet 30's skruehul 35 via gevindkoblingen 42. Fælles for de i fig. 4-6 viste udførelsesformer er, at skaftets gevindafsnit 24 går over DK 168194 B1 9 i skaftets gevindafsnit 14 i en trinvis diameterforøgelse. Her skal man være opmærksom på, at skruens skaft i dette område vil være svækket som følge af kærwirkning.30 In FIG. 6, a structure similar to that of FIG. 5, where the point of attack 22b is moved even further away from the longitudinal axis of the shaft, the shaft section 14 being provided with an annular material portion 38 so that the width of the disc-shaped abutment area 43 is increased. Here, too, the screw will be attached to the screw hole 35 of the element 30 via the threaded coupling 42. Common to those shown in FIG. 4-6, the thread section 24 of the shaft goes over DK 168194 B1 9 in the thread section 14 of the shaft in a stepwise increase in diameter. Here it should be noted that the screw shaft in this area will be weakened as a result of jaw action.

5 På fig. 8 ses en alternativ udførelsesform for den i fig.5 In FIG. 8 shows an alternative embodiment of the embodiment shown in FIG.

1 viste skrue, hvor skruens gevindafsnit 24 går over i skruens skaftafsnit 14 via et konisk afsnit 22. Byggeelementet 30, hvori skruen er iskruet, har et skruehul 35 med et ligeledes konisk afsnit 36. Skruen er sammenkoblet 10 med byggeelementet 30 via gevindkoblingen 42, og den yderligere fiksering skruen og elementet imellem tilvejebringes af et i skruehullets bund anbragt par låseknaster 39, der er indrettet til at kunne optages i spidsen af skruen i to der tilvirkede låsehuller 43. Derved sikres 15 det, at den af et hjul monteret på skruen frembragte påvirkning ikke løsner skruen fra byggeelementet 30. Dette kunne ellers forekomme som følge af den kraftige gevindstigning på gevindet 25. Denne kraftige stigning skyldes Ønsket om, at det skal være let at montere skruen under 20 1eg, og at produktionen af skruen gøres lettere, idet fremstillingen kan ske ved hjælp af enklere værktøjer.1, the screw portion 24 of the screw passes into the shaft portion 14 of the screw via a conical section 22. The building element 30, wherein the screw is ice screwed, has a screw hole 35 with a likewise conical section 36. The screw is coupled 10 to the building element 30 via the threaded coupling 42, and the further fixing of the screw and the element therebetween is provided by a pair of locking knobs 39 arranged in the bottom of the screw hole, arranged to be able to receive the tip of the screw in two locking holes 43. This ensures that it is mounted by a wheel on the screw. This effect could otherwise occur as a result of the sharp thread increase on the thread 25. This sharp increase is due to the desire that the screw should be easily mounted below 20 1eg and that the production of the screw is made easier, since manufacturing can be done using simpler tools.

25 30 3525 30 35

Claims (8)

1. Skrue (10) til et legetøjsbyggesæt og omfattende et 5 hult skaft (14) med gevindafsnit (24) til indskruning i et andet af legetøjsbyggesættets elementer (30) med et forud tildannet skruehul (35), hvilken skrue (10) er udformet som et hult plastemne og er indrettet til at modstå på tværs af skruen (10)' s skaft (14) i afstand fra 10 elementet (30) virkende kræfter, kendetegnet ved, at skruen (10) - i forlængelse af gevindafsnittet (24) - har et anlægsområde (22), hvormed skruen (10) ved iskruning ligger an mod et dertil komplementært anlægsområde (36) på det med skruehul (35) tildannede andet ele- * 15 ment (30) i legetøjsbyggesættet, så at skruen (10) understøttes i et område, som er beliggende i større radial afstand fra skruens længdeakse end radius af gevindafsnittet (24).A screw (10) for a toy building set and comprising a 5-hole shank (14) with threaded portion (24) for screwing into another of the toy building set elements (30) with a pre-formed screw hole (35), said screw (10) being formed as a hollow plastic blank and is designed to withstand the forces acting across the screw (10) at a distance from the forces acting on the element (30), characterized in that the screw (10) - by extension of the thread section (24) - has a abutment area (22) whereby the screw (10), by ice-crunching, abuts against a complementary abutment area (36) on the second element (30) formed by the screw hole (35) in the toy building set, so that the screw (10) ) is supported in an area located at a greater radial distance from the longitudinal axis of the screw than the radius of the thread section (24). 2. Skrue ifølge krav 1, kendetegnet ved, at skruens anlægsområde (22) danner en anlægsflade med form som en rundtgående krave.Screw according to claim 1, characterized in that the abutment area (22) of the screw forms a abutment surface with the shape of a circumferential collar. 3. Skrue ifølge krav 1 eller 2, kendetegnet 25 ved, at kraven udgøres af en sammenhængende, konisk flade.Screw according to claim 1 or 2, characterized in that the collar is constituted by a continuous conical surface. 4. Skrue ifølge krav 2 eller 3, kendetegnet ved, at kraven danner overgang mellem gevindafsnittet 30 (24) med én diameter og et skaftafsnit (14) med en i for hold dertil større diameter.Screw according to claim 2 or 3, characterized in that the collar forms a transition between the threaded section 30 (24) with one diameter and a shaft section (14) with a larger diameter for this purpose. 5. Skrue ifølge krav 1-4, kendetegnet ved, at anlægsfladerne på skruen (10) og på det med skruehul (35) 35 tildannede andet element (30) er tilvirket med komplementære fordybninger (23) og fremspring (37). DK 168194 B1Screw according to claims 1-4, characterized in that the abutment surfaces of the screw (10) and of the second element (30) formed by screw holes (35) 35 are made with complementary recesses (23) and projections (37). DK 168194 B1 6. Skrue ifølge krav 5, kendetegnet ved, at skruens anlægsflade (22) har mindst én fordybning (23), og at det andet elements anlægsflade (36) har mindst en * knop (37) til optagelse i fordybningen (23). 5A screw according to claim 5, characterized in that the abutment surface (22) of the screw has at least one recess (23) and the abutment surface (36) of the second element has at least one * knob (37) for accommodating in the recess (23). 5 7. Skrue ifølge krav 6, kendetegnet ved, at fordybningen (23) er asymmetrisk, så at den i cirkumpe-rifer retning har en stejl sideflade, der fungerer som stopflade, og en skrå sideflade, der fungerer som lede- 10 flade ved indbyrdes låsning af elementerne gennem indgreb mellem knop (37) og fordybning (23).Screw according to claim 6, characterized in that the recess (23) is asymmetrical, so that it has a steep side surface which acts as a stop surface and a sloped side surface which acts as a guide surface in mutual circumferential direction. locking the elements through engagement between knob (37) and recess (23). 8. Skrue ifølge krav 1-7, kendetegnet ved, at gevindet (42) udgøres af kun én gang snoning omkring 15 skruens skaft. 20 25 30 35Screw according to claims 1-7, characterized in that the thread (42) consists of only once twisting about the shaft of the screw. 20 25 30 35
DK183091A 1991-11-06 1991-11-06 A screw for a toy building set DK168194B1 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
DK183091A DK168194B1 (en) 1991-11-06 1991-11-06 A screw for a toy building set
HK98103231.6A HK1004595B (en) 1991-11-06 1992-11-05 A screw for a toy building set
SG9608322A SG87738A1 (en) 1991-11-06 1992-11-05 A screw for a toy building set
DE69222862T DE69222862T2 (en) 1991-11-06 1992-11-05 SCREW FOR A TOY CONSTRUCTION SET
EP92923709A EP0611321B1 (en) 1991-11-06 1992-11-05 A screw for a toy building set
AU29420/92A AU2942092A (en) 1991-11-06 1992-11-05 A screw for a toy building set
PCT/DK1992/000321 WO1993008887A1 (en) 1991-11-06 1992-11-05 A screw for a toy building set
JP50810593A JP3161603B2 (en) 1991-11-06 1992-11-05 Assembled toy screws
CN 92114317 CN1030039C (en) 1991-11-06 1992-11-06 Screw for set of combined toy

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK183091 1991-11-06
DK183091A DK168194B1 (en) 1991-11-06 1991-11-06 A screw for a toy building set

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Publication Number Publication Date
DK183091D0 DK183091D0 (en) 1991-11-06
DK183091A DK183091A (en) 1993-05-07
DK168194B1 true DK168194B1 (en) 1994-02-28

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ID=8108368

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Application Number Title Priority Date Filing Date
DK183091A DK168194B1 (en) 1991-11-06 1991-11-06 A screw for a toy building set

Country Status (8)

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EP (1) EP0611321B1 (en)
JP (1) JP3161603B2 (en)
CN (1) CN1030039C (en)
AU (1) AU2942092A (en)
DE (1) DE69222862T2 (en)
DK (1) DK168194B1 (en)
SG (1) SG87738A1 (en)
WO (1) WO1993008887A1 (en)

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* 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 (en) * 1996-05-31 1998-08-21 Asco SYSTEM FOR MOUNTING AND LOCKING A TOY PIECE ON A BASIC ELEMENT OF A MODULAR TOY
US6371240B1 (en) 2000-03-18 2002-04-16 Austin Acoustic Systems, Inc. Anechoic chamber
EP1464369A1 (en) * 2003-04-04 2004-10-06 Theodorus Suibertus Anthonius ROLF Toy building block, suited screw and tool for screw
DE102004061614B4 (en) * 2004-12-17 2009-11-26 Ab Skf contraption
DE102011078660B4 (en) * 2011-07-05 2013-10-17 Metabowerke Gmbh Tool head for a reconditioning machine as well as a reconditioning machine
CN104526197A (en) * 2014-12-04 2015-04-22 张斐斐 Wheel axle device for welding machine
RU2598133C1 (en) * 2015-03-20 2016-09-20 Елена Геннадьевна Баталина Hollow toy building block
DE102016200354B4 (en) * 2016-01-14 2024-12-24 Bruder Spielwaren Gmbh + Co. Kg Rotating device assembly for a toy

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 (en) * 1985-10-12 1987-04-21 株式会社アベロ、ラボラトリ− Assembly of toy etc.
DK87289A (en) 1989-02-24 1990-08-25 Lego As THE CONNECTOR TO A TOY BUILDING SITE

Also Published As

Publication number Publication date
DK183091A (en) 1993-05-07
EP0611321B1 (en) 1997-10-22
JP3161603B2 (en) 2001-04-25
DK183091D0 (en) 1991-11-06
HK1004595A1 (en) 1998-11-27
WO1993008887A1 (en) 1993-05-13
EP0611321A1 (en) 1994-08-24
SG87738A1 (en) 2002-04-16
DE69222862D1 (en) 1997-11-27
CN1076638A (en) 1993-09-29
AU2942092A (en) 1993-06-07
DE69222862T2 (en) 1998-03-19
JPH07502427A (en) 1995-03-16
CN1030039C (en) 1995-10-18

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