FI88860C - Substance for bimetallic coins and process for its manufacture - Google Patents

Substance for bimetallic coins and process for its manufacture Download PDF

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Publication number
FI88860C
FI88860C FI914101A FI914101A FI88860C FI 88860 C FI88860 C FI 88860C FI 914101 A FI914101 A FI 914101A FI 914101 A FI914101 A FI 914101A FI 88860 C FI88860 C FI 88860C
Authority
FI
Finland
Prior art keywords
coin
groove
bimetallic
inner part
annular
Prior art date
Application number
FI914101A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI914101A0 (en
FI88860B (en
Inventor
Ari Jukka Erik Vahteristo
Original Assignee
Outokumpu Poricopper Oy
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8533052&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FI88860(C) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Outokumpu Poricopper Oy filed Critical Outokumpu Poricopper Oy
Priority to FI914101A priority Critical patent/FI88860C/en
Publication of FI914101A0 publication Critical patent/FI914101A0/en
Priority to NO922825A priority patent/NO305493B1/en
Priority to DK92113196.7T priority patent/DK0529349T3/en
Priority to DE69223000T priority patent/DE69223000T2/en
Priority to ES92113196T priority patent/ES2109963T3/en
Priority to AT92113196T priority patent/ATE159899T1/en
Priority to EP92113196A priority patent/EP0529349B1/en
Priority to SE9202290A priority patent/SE508784C2/en
Publication of FI88860B publication Critical patent/FI88860B/en
Application granted granted Critical
Publication of FI88860C publication Critical patent/FI88860C/en
Priority to GR970403197T priority patent/GR3025548T3/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
    • B44B5/00—Machines or apparatus for embossing decorations or marks, e.g. embossing coins
    • B44B5/008—Machines or apparatus for embossing decorations or marks, e.g. embossing coins in layered material; connecting a plurality of layers by embossing
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C21/00—Coins; Emergency money; Beer or gambling coins or tokens, or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K25/00—Uniting components to form integral members, e.g. turbine wheels and shafts, caulks with inserts, with or without shaping of the components

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Adornments (AREA)
  • Graft Or Block Polymers (AREA)
  • Materials For Medical Uses (AREA)
  • Formation And Processing Of Food Products (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Ink Jet (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)

Abstract

A bimetallic coin blank is made of two different parts: an inner part (2) circular in cross-section, and an annular part (1) compressed around it. A tight and solid juncture between the two parts of the blank is created by means of a continuous groove (3) formed in the inner part. <IMAGE>

Description

[ 88860[88860

BIMETALLI RAHA-AIHIO JA MENETELMÄ SEN VALMISTAMISEKSIBIMMETAL BLANK AND METHOD FOR ITS MANUFACTURE

Tämä keksintö kohdistuu bimetalliraha-aihioon sekä menetelmään bimetalliraha-aihion valmistamiseksi. Bimetalliraha-aihio muodostetaan kahdesta eri osasta; sisemmästä, poikkileikkaukseltaan pyöreästä osasta sekä tämän ympärille tulevasta rengasmaisesta osasta. Aihion eri osien välinen tiukka liitos saadaan aikaan sisempään osaan muodostetun jatkuvan uran avulla.This invention relates to a bimetallic blank and to a method of making a bimetallic blank. The bimetallic coin blank is formed of two different parts; an inner part of circular cross-section and an annular part surrounding it. The tight connection between the different parts of the blank is achieved by means of a continuous groove formed in the inner part.

Raha-aihioiksi nimitetään yleensä metalliaihioita, joista leimauksen, reunauksen yms. toimenpiteiden kautta muodostetaan metallikolikoita, joita käytetään metallirahoina, rahakkeina tai esim. medaljonkeina. Bimetalliraha-aihio muodostetaan kahta eri metallia olevasta osasta, jotka liitetään yhteen leimauksessa tapahtuvan mekaanisen liitoksen avulla.Coin blanks are usually referred to as metal blanks, from which, through stamping, edging, etc., metal coins are formed, which are used as coins, tokens or, for example, medallions. The bimetallic coin blank is formed of two different metal parts which are joined together by means of a mechanical joint in stamping.

EP patentista 0 080 437 tunnetaan kahdesta eri metallista valmistettu metalliraha-aihio rahojen ja medaljonkien valmistamiseksi sekä menetelmä kyseisen aihion valmistamiseksi. Raha-aihio on valmistettu kahdesta eri metallista, joista sisempi on poikkileikkaukseltaan olennaisesti pyöreä ja ulompi rengasmainen. Ulomman rengasmaisen osan sisäkehä on suppenevasti viistetty siten, että rengasmaisen osan sisemmän reunan paksuus on vain noin kolmannes muun rengasmaisen osan paksuudesta. Tästä kapeasta osasta on vielä renkaan keskustaan päin -1- ulotettu hammasmaisia ulokkeita. Ulompi osa puristetaan tiukasti sisemmän osan ympärille, jolloin ulomman osan metalli puristuu tiiviisti sisempää osaa vasten. Hammasmaisten ulokkeiden tarkoituksena on estää aihion :' eri osien liukuminen ja muu liike toistensa suhteen.EP patent 0 080 437 discloses a coin blank made of two different metals for making coins and medallions and a method for making said blank. The coin is made of two different metals, the inner of which is substantially circular in cross-section and the outer annular. The inner circumference of the outer annular portion is tapered so that the thickness of the inner edge of the annular portion is only about one-third the thickness of the other annular portion. From this narrow part, toothed projections are still extended -1- towards the center of the ring. The outer part is pressed tightly around the inner part, whereby the metal of the outer part is pressed tightly against the inner part. The purpose of the toothed projections is to prevent the blank: 'different parts from slipping and other movement relative to each other.

2 88860 EP-patenttijulkaisussa O 312 436 on myös kuvattu menetelmä metalliraha-aihion valmistamiseksi. Tässä menetelmässä sisempään osaan muodostetaan kappaleen kehän keskellä kulkevia jaksottaisia uria. Kun ulompi rengasmainen osa, jonka sisäreuna on sileä, puristetaan sisemmän osan päälle, ulomman osan metalli puristuu sisemmän osan auk- . koihin ja muodostaa siten tiiviin liitoksen osien välille.2,88860 EP 0 312 436 also describes a method for producing a coin blank. In this method, periodic grooves running in the middle of the circumference of the body are formed in the inner part. When the outer annular portion having a smooth inner edge is pressed over the inner portion, the metal of the outer portion is pressed into the opening of the inner portion. thus forming a tight joint between the parts.

Tämä keksinnön mukaisesti on nyt todettu, että kahden eri osasta muodostetun kappaleen, kuten bimetalliraha-aihion eri osien yhteenliittäminen voidaan tehdä edelläkuvattuja huomattavasti yksinkertaisemmalla ja edullisemmalla tavalla. Keksinnön mukaisesti bimetalliraha-aihion eri osien välinen liitos aikaansaadaan aihion sisemmän osan ulkokehälle muodostetun jatkuvan uran avulla, jolloin leimauksen yhteydessä tapahtuvassa puristuksessa aihion ulomman osan metalli virtaa sisemmän osan uraan. Keksinnön olennaiset tunnusmerkit käyvät esille oheisista patenttivaatimuksista.In accordance with the present invention, it has now been found that the joining of different parts of two pieces formed from different parts, such as a bimetallic coin blank, can be done in a much simpler and cheaper way than described above. According to the invention, the connection between the different parts of the bimetallic coin is provided by means of a continuous groove formed on the outer circumference of the inner part of the blank, whereby in the pressing during stamping the metal of the outer part flows into the groove of the inner part. The essential features of the invention appear from the appended claims.

Kahdesta osasta muodostuvan raha-aihion valmistamisessa on olennaista, että sisempi osa ja sen ympärille puristettava rengasmainen osa muodostavat tarpeeksi tiukan liitoksen. Suoritetuissa tutkimuksissa on nyt todettu, että keksinnön mukaisen raha-aihion eri osien irrotuslujuus on vähintään sama tai parempi kuin esim. tekniikan tasossa kuvatuilla raha-aihioilla. Työkalu-valmistuksen kannalta on kuitenkin aivan eri asia, muodostetaanko rengasmaiseen osaan viistotuksia ja hammastuksia ja/tai sisempään osaan yksittäisiä aukkoja kuin se, että nämä toimenpiteet korvataan jatkuvalla uralla sisemmän osan ulkokehällä. Jatkuvan uran valmistus sisempään osaan on kustannuksiltaan selvästi edullisempaa verrattuna kustannuksiin, jotka muodostuvat edellä-: kuvattuja liitoksia valmistettessa.In the manufacture of a two-part money blank, it is essential that the inner part and the annular part to be pressed around it form a sufficiently tight joint. In the studies carried out, it has now been found that the peel strength of the various parts of the money blank according to the invention is at least the same or better than, for example, the money blanks described in the prior art. However, from the point of view of tool manufacture, it is quite different whether oblique and toothed and / or individual openings are formed in the annular part and that these measures are replaced by a continuous groove in the outer circumference of the inner part. The manufacture of a continuous groove for the inner part is clearly more cost-effective compared to the costs of manufacturing the joints described above.

3 888603,88860

Keksintöä on kuvattu myös oheisten periaatekuvien avulla, joista nähdään, miten liitos muodostetaan.The invention has also been described with the aid of the accompanying schematic drawings, which show how the connection is formed.

Kuva 1 esittää bimetalliraha-aihion ulompaa rengasmaista osaa, kuva 2 bimetalliraha-aihion sisempää umpinaista osaa, ja . kuvassa 3 osat on puristettu yhteen.Figure 1 shows the outer annular part of the bimetallic blank, Figure 2 shows the inner closed part of the bimetallic blank, and. in Figure 3, the parts are compressed together.

Kuten kuvasta 1 nähdään, rengasmaiseen osaan 1 ei ole tehty mitään olennaisesti pystysuorasta sisäpinnasta ulkonevia kavennuksia tai ulokkeita eli se on periaatteessa sileä. Tämä ratkaisu on työkaluvalmistuksen kannalta varsin edullinen.As can be seen from Figure 1, the annular part 1 is not made with any constrictions or protrusions projecting from a substantially vertical inner surface, i.e. it is basically smooth. This solution is quite advantageous from the point of view of tool manufacturing.

Kuvasta 2 näkyy, että sisemmän osan 2 ulkokehälle on muodostettu ulkokehän suuntainen, rengasmainen jatkuva ura 3. Uran korkeus koko sisemmän osan korkeuteen nähden on noin 1/4 - 1/6, ja ura on edullisesti sijoitettu pystysuunnassa katsottuna kappaleen keskelle. Jos esim. ura on liian leveä, se vaikeuttaa aihioiden häiriötöntä liikkumista leimauskoneella, ja jos ura on liian kapea, riittävän lujan liitoksen aikaansaaminen on vaikeaa.It can be seen from Figure 2 that an outer circumferential, annular continuous groove 3 is formed on the outer circumference of the inner part 2. The height of the groove relative to the height of the entire inner part is about 1/4 to 1/6, and the groove is preferably arranged vertically in the middle of the body. If, for example, the groove is too wide, it makes it difficult for the blanks to move smoothly on the stamping machine, and if the groove is too narrow, it is difficult to obtain a sufficiently strong joint.

Lujan liitoksen muodostumisen kannalta on tärkeää, että ura on reunoiltaan riittävän terävä ja että ura on riittävän syvä. Uran syvyys on edullisesti 0,3-1 kertaa uran korkeus. Raha-aihioiden valmistuksessa on lisäksi käytettävä minimitoleransseja riittävän liitoslujuuden saavuttamiseksi. Tutkimuksissa on myös kokeiltu useamman uran käyttöä, mutta niillä saavutettu lujuus jäi heikommaksi kuin yhtä uraa käytettäessä.In order to form a strong joint, it is important that the groove has sufficiently sharp edges and that the groove is deep enough. The depth of the groove is preferably 0.3 to 1 times the height of the groove. In addition, minimum tolerances must be used in the manufacture of money blanks in order to achieve sufficient joint strength. Studies have also attempted to use multiple grooves, but the strength achieved with them was lower than with a single groove.

Kuvassa 3 raha-aihion eri osat on liitetty toisiinsa, ja nähdään, että ulomman osan metalli painuu puristettaessa sisemmän osan uraan ja muodostaa tarvittavan liitoksen.In Figure 3, the different parts of the money blank are joined together, and it can be seen that the metal of the outer part presses into the groove of the inner part when pressed and forms the necessary joint.

Claims (5)

1. Bimetallmyntamne för framställning av metalliskt mynt, pol-letter och medaljonger, varvid myntamnet best&r av en yttre ringformig del (1) vars inre kant ar siat och som best&r av en annan metall an den inre delen (2) med runt tvarsnitt, k&nne-tecknat av att i den yttre omkretsen av myntamnets inre del (2) har upptagits ett med den yttre omkretsen parallellt, ringfor-migt, kontinuerligt spar (3).A bimetallic coin name for the production of metallic coins, poles and medallions, the coin name consisting of an outer annular part (1) whose inner edge is seated and consisting of another metal in the inner part (2) of circular cross section, core -subscribed by the fact that in the outer circumference of the inner part (2) of the coin coin, a parallel, annular, continuous spar (3) is arranged parallel to the outer circumference. 2. Bimetallmyntamne enligt patentkravet 1, k&nnetecknat av att det kontinuerliga sparet (3) har placerats i mitten av den inre delen (2) sedd i vertikalriktningen.Bimetallic coin name according to claim 1, characterized in that the continuous lattice (3) has been placed in the middle of the inner part (2) as seen in the vertical direction. 3. Bimetallmyntamne enligt patentkravet 1, k&nnetecknat av att det kontinuerliga sparets (3) höjd ar en 1/4 - 1/6 del av den inre delens höjd, och att sparet ar tillrackligt skarpt i sinä kanter.Bimetallic coin name according to claim 1, characterized in that the height of the continuous groove (3) is a 1/4 - 1/6 part of the height of the inner part, and that the groove is sufficiently sharp at its opposite edges. 4. Bimetallmyntamne enligt patentkravet 1, k&nnetecknat av att det kontinuerliga sparets (3) djup ar 0,3 - 1 gang sparets höjd.Bimetallic coin name according to claim 1, characterized in that the depth of the continuous groove (3) is 0.3 - 1 times the height of the groove. 5. Förfarande för framställning av ett bimetallmyntamne för metalliskt mynt, polleter och medaljonger, varvid myntamnet bil-das av delar av tv& olika metaller av vilka den yttre delen (1) ar ringformig och den inre delen (2) har runt tvarsnitt, k&nnetecknat av att myntamnets yttre ringformiga del(l) utformas med en v&sentligen siat inre kant, och att i den inre delens (2) yttre omkrets upptas ett kontinuerligt sp&r (3) parallellt med omkretsen, i vilket spär den yttre delen som skall pressas kring den inre delen intranger vid pressningen och bildar en tät för- . . bindning.Process for producing a bimetallic coin name for metallic coins, tokens and medallions, wherein the coin name is formed by parts of TV & various metals of which the outer part (1) is annular and the inner part (2) has a cross section, characterized by that the outer annular portion (1) of the coin name is formed with a substantially seated inner edge, and that a continuous groove (3) is received parallel to the circumference in the outer circumference of the inner portion (2), in which the outer portion to be pressed about the inner portion is blocked. the part enters at the pressing and forms a dense front. . binding.
FI914101A 1991-08-30 1991-08-30 Substance for bimetallic coins and process for its manufacture FI88860C (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
FI914101A FI88860C (en) 1991-08-30 1991-08-30 Substance for bimetallic coins and process for its manufacture
NO922825A NO305493B1 (en) 1991-08-30 1992-07-16 Bimetallic coin blank and method of making it
EP92113196A EP0529349B1 (en) 1991-08-30 1992-08-03 Bimetallic coin blank and method for producing the same
DE69223000T DE69223000T2 (en) 1991-08-30 1992-08-03 Bimetallic coin blank and process for its manufacture
DK92113196.7T DK0529349T3 (en) 1991-08-30 1992-08-03 Bimetallic coin blank and method of manufacture thereof
ES92113196T ES2109963T3 (en) 1991-08-30 1992-08-03 BIMETALLIC COSPEL AND METHOD TO PRODUCE IT.
AT92113196T ATE159899T1 (en) 1991-08-30 1992-08-03 BIMETALLIC COIN BLANK AND METHOD FOR PRODUCING IT
SE9202290A SE508784C2 (en) 1991-08-30 1992-08-05 Bimetallic coin blank and method of making the same
GR970403197T GR3025548T3 (en) 1991-08-30 1997-12-02 Bimetallic coin blank and method for producing the same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI914101A FI88860C (en) 1991-08-30 1991-08-30 Substance for bimetallic coins and process for its manufacture
FI914101 1991-08-30

Publications (3)

Publication Number Publication Date
FI914101A0 FI914101A0 (en) 1991-08-30
FI88860B FI88860B (en) 1993-04-15
FI88860C true FI88860C (en) 1993-07-26

Family

ID=8533052

Family Applications (1)

Application Number Title Priority Date Filing Date
FI914101A FI88860C (en) 1991-08-30 1991-08-30 Substance for bimetallic coins and process for its manufacture

Country Status (9)

Country Link
EP (1) EP0529349B1 (en)
AT (1) ATE159899T1 (en)
DE (1) DE69223000T2 (en)
DK (1) DK0529349T3 (en)
ES (1) ES2109963T3 (en)
FI (1) FI88860C (en)
GR (1) GR3025548T3 (en)
NO (1) NO305493B1 (en)
SE (1) SE508784C2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2715807B1 (en) * 1994-02-04 1996-04-26 Admin Monnaies Medailles Method for manufacturing monetary coins, medals or tokens, in particular bimetallic, coins, medals or tokens obtained and crown and insert for their manufacture.
KR960009006B1 (en) * 1994-04-18 1996-07-10 Poongsan Co Ltd Manufacture of coin
CN101856166B (en) * 2009-04-07 2013-08-21 上海造币有限公司 Electroplating inlaying two-color coin (seal) and suit cut production process thereof
CN101999783B (en) * 2009-09-03 2012-11-14 上海造币有限公司 Electroplating mosaic tricolor coin (badge) and suit cutting/manufacturing process thereof
KR20110064038A (en) * 2009-12-07 2011-06-15 주식회사 풍산 Method for manufacture of trile metal coin

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1334051A (en) * 1919-02-17 1920-03-16 Orton L Prime Method of forming composite metal plugs
FR2621506B1 (en) * 1987-10-12 1992-07-17 Admin Monnaies Medailles PROCESS FOR THE MANUFACTURE OF BIMETALLIC MONETARY COINS

Also Published As

Publication number Publication date
DE69223000D1 (en) 1997-12-11
NO922825D0 (en) 1992-07-16
GR3025548T3 (en) 1998-03-31
SE508784C2 (en) 1998-11-02
EP0529349B1 (en) 1997-11-05
ATE159899T1 (en) 1997-11-15
DE69223000T2 (en) 1998-03-05
NO922825L (en) 1993-03-01
NO305493B1 (en) 1999-06-07
FI914101A0 (en) 1991-08-30
FI88860B (en) 1993-04-15
EP0529349A1 (en) 1993-03-03
SE9202290L (en) 1993-03-01
ES2109963T3 (en) 1998-02-01
SE9202290D0 (en) 1992-08-05
DK0529349T3 (en) 1998-04-20

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