LT5520B - Neck finish of plastic container - Google Patents

Neck finish of plastic container Download PDF

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Publication number
LT5520B
LT5520B LT2006086A LT2006086A LT5520B LT 5520 B LT5520 B LT 5520B LT 2006086 A LT2006086 A LT 2006086A LT 2006086 A LT2006086 A LT 2006086A LT 5520 B LT5520 B LT 5520B
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LT
Lithuania
Prior art keywords
diameter
thread
approximately
wall
segments
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LT2006086A
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Lithuanian (lt)
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LT2006086A (en
Inventor
Michał PAŻ
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Gtx Hanex Plastic Sp. Z O. O.
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Application filed by Gtx Hanex Plastic Sp. Z O. O. filed Critical Gtx Hanex Plastic Sp. Z O. O.
Priority to LT2006086A priority Critical patent/LT5520B/en
Publication of LT2006086A publication Critical patent/LT2006086A/en
Publication of LT5520B publication Critical patent/LT5520B/en

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Abstract

Neck finish of plastic container is related to containers, preferably bottle, in particular a PET bottle, is used for storage and transportation of liquids, especially beverages with normal or increased internal pressure. Neck finish of the plasticcontainer on its upper part is having the cylindrical crown with external segmentary thread and circumferential reinforcements below the thread. The crown (1) of neck finish has a wall with the external diameter D2 equal approximately (1,08 - 1,10) of the internal wall diameter D1 and is topped with a flange (3) with the external diameter D3 equal approximately (1,13 - 1, 15) of the internal wall diameter D1 and the height equal approximately 0,1 of the internal wall diameter D1, while on the external wall surface it has a thread (4) with the external outline diameter D4 equal approximately (1,24 - 1, 28) of the internal wall diameter D1. Ratio of the step c of the external segmentary thread to the width e of the interruption between segments is about 1:2

Description

Išradimas susijęs su konteineriais, būtent buteliais, ypatingai PET (polietileno tereftalato - medžiagos rūšis, skirta slėgiui atsparių gaminių gamybai) butelių, kurie yra naudojami skysčių, ypač gėrimų su normaliu ir padidintu vidiniu slėgiu, saugojimui ir transportavimui.The invention relates to containers, in particular bottles, in particular PET (polyethylene terephthalate - a type of material for the manufacture of pressure-resistant articles) bottles which are used for storing and transporting liquids, in particular beverages with normal and elevated internal pressure.

Konteinerį paprastai sudaro horizontalus pagrindas, kaklelis ir korpusas, jungiantis pagrindą su kakleliu. Specifinis konteinerio įgyvendinimo pavyzdys yra butelis, kurio korpusas yra simetrinis konteinerio vertikalios ašies atžvilgiu ir užbaigtas iš esmės cilindrinės formos vainikėliu, turinčiu tam tikros formos sriegį.The container generally consists of a horizontal base, a neck and a body connecting the base to the neck. A specific embodiment of a container is a bottle having a body symmetrical with respect to the vertical axis of the container and finished with a crown of substantially cylindrical shape having a thread of a certain shape.

Iš technikos lygio yra žinoma, kad kaklelio vainikėlio išorinis diametras yra apytikriai lygus 1,14 vidinio diametro. Tokios formos vainikėlis gali turėti spiralinį išorinį sriegį dangteliui užsukti. Šio tipo kaklelis gali būti numatytas su apskritais flanšais apatinėje vainikėlio dalyje [JAV patentas Nr. US 6471909; ir kt.]It is known in the art that the outer diameter of the crown of the neck is approximately 1.14 inner diameter. A crown of this shape may have a helical outer thread to screw the cap on. This type of neck may be provided with circular flanges in the lower portion of the crown [U.S. Pat. U.S. Pat. No. 6,471,909; etc.]

Žinomo konteinerio (butelio) pagaminimui reikalingas nemažas specialiai pagamintos medžiagos kiekis.The production of a known container (bottle) requires a considerable amount of specially manufactured material.

Plastikinės medžiagos kiekio sumažinimui ir galimų įtempimų kaklelyje sumažinimui yra pasiūlyta padalinti sriegį į sriegio segmentus su išdėstytais tarpais. Sriegio segmentai paprastai yra išilginės formos, suapvalintomis briaunomis be aštrumų ir išdėstyti galas prie galo atitinkamai bendram spiralės sriegiui su pertraukimais (tarpais), kurie vertikaliai atitinka vienas kitą [JAV patentai Nr.US 4948001; US 6635325] arba ne [EP0675047],In order to reduce the amount of plastic material and to reduce possible stress in the neck, it is proposed to split the thread into spaced segments of the thread. The thread segments are generally longitudinal in shape with rounded edges without sharpness and end-to-end corresponding to a common spiral thread with interruptions (spaces) that correspond vertically to each other [U.S. Patent Nos. 4,948,001; US 6635325] or not [EP0675047],

Taip pat iš technikos lygio žinoma, kad butelio vainikėlis gali turėti sriegį iš kelių vijų su atitinkamu polinkio kampu ir vainikėlio išorinio diametro santykis su vidiniu diametru yra apie 1,11.It is also known in the art that a crown of a bottle may have a plurality of turns with a respective inclination angle, and the ratio of the outer diameter of the crown to the inner diameter is about 1.11.

Tolygus diametras išilgai viso išorinio sriegio paviršių reiškia, kad paviršiaus aukštis yra apribotas, užtat jis turi mažesnį kontakto paviršių su dangtelio sriegiu.An even diameter along the entire surface of the outer thread means that the height of the surface is limited and therefore has a smaller contact surface with the cap thread.

Pagal siūlomą išradimą butelio formos plastikinio konteinerio kaklelis, savo viršutinėje dalyje yra užbaigtas cilindriniu vainikėliu, turinčiu išorinį segmentinį sriegį dangtelio užsukimui ir žemiau sriegio - apskritą sutvirtinimą. Kaklelio vainikėlis turi sienelę, kurios išorinis diametras sudaro apytikriai (1,08 - 1, 10) vidinio sienelės diametro, ir kuri viršuje yra užbaigta apskritu flanšu, kurio išorinis diametras apytikriai lygus 1,131,15 vidinio sienelės diametro ir kurio aukštis yra apytikriai lygus 0,1 vidinio sienelės diametro. Be to, ant išorinio paviršiaus sienelė turi sriegį dangtelio užsukimui, kurio išorinis diametras apytikriai lygus 1,24 - 1,28 sienelės vidinio diametro. Kaklelio vainikėlio išorinis sriegis pagal siūlomą išradimą yra padalintas į segmentus, išdėstytus galas prie galo atitinkamai bendrai sriegio spiralei. Vertikalaus sriegio žingsnio santykis su tarpo tarp segmentų pločiu yra apie 1:2 ir kampas a tarp dviejų gretimų sriegio segmentų mažesniųjų briaunų yra 40-50 °, geriausiai 45°.According to the present invention, the neck of a bottle-shaped plastic container is completed in its upper part by a cylindrical crown having an outer segmental thread for screwing the cap and a circular reinforcement below the thread. The crown of the neck has a wall having an outer diameter of approximately (1.08 - 1, 10) inner wall and which is completed at the top by a circular flange having an outer diameter of approximately 1,131,15 inner wall diameter and a height of approximately 0, 1 inner wall diameter. In addition, the outer wall has a thread for screwing the cap, having an outer diameter of approximately 1.24 to 1.28 inner diameter. The neck crown outer thread according to the present invention is divided into segments disposed end to end for the respective common thread spiral. The ratio of the vertical pitch of the thread to the spacing of the segments is about 1: 2 and the angle α between the smaller edges of the two adjacent thread segments is 40-50 °, preferably 45 °.

Išorinio sriegio segmentai yra padaryti formos, artimos daugiakampio su trapeciniu profiliu formai, geriausiai - nukirsto obelisko formos, kur segmento viršutinio paviršiaus ir segmento pagrindo plotų santykis yra <1, geriausiai 0,85-0,95. Visi tarpai tarp segmentų yra išrikiuoti vertikaliai vienas virš kito.The outer thread segments are made in the shape of a polygon with a trapezoidal profile, preferably a cut obelisk, where the ratio of the surface area of the segment to the base of the segment is <1, preferably 0.85 to 0.95. All spacing between segments is vertically aligned above each other.

Išradimo esmė paaiškinta brėžiniais, kur Fig. 1 parodytas butelio vainikėlio scheminis vaizdas iš šono ir Fig.2 - kaklelio (būtent kaklelio vainikėlio) vaizdas iš viršaus.BRIEF DESCRIPTION OF THE DRAWINGS The invention is explained in the drawings, in which Figs. Figure 1 is a schematic side view of the bottle crown and Figure 2 is a top view of the neck (namely, the crown of the neck).

Išradimo įgyvendinimo pavyzdžio trumpas aprašymas.Brief Description of the Embodiment.

Cilindrinis vainikėlis 1 kaip neatskiriama butelio dalis, esantis ant kaklelio (brėžinyje neparodyto), turi vidinį paviršių, kuris sudaro lataką arba kanalą 2, kurio diametras Dl.The cylindrical crown 1, as an integral part of the bottle on the neck (not shown in the drawing), has an inner surface forming a gutter or channel 2 with a diameter Dl.

Išorinis vainikėlio paviršius turi diametrąD2, apytiksliai lygų 1,09 diametro Dl. Flanšo 3 aukštis h apytikriai lygus 0,1 diametro Dl ir išorinis diametras D3 apytikriai lygus 1,14 vidinio sienelės diametro Dl. Vainikėlis ant išorinio sienelės paviršiaus turi segmentinį sriegį 4, kurio išorinio kontūro diametras D4 apytikriai lygus 1,26 vidinio sienelės diametro Dl. Žemiau sriegio vainikėlis 1 turi standartinį PET flanšą (us) 5.The outer surface of the crown has a diameter D2 of approximately 1.09 in diameter Dl. The height h of the flange 3 is approximately 0.1 Dl in diameter and the outer diameter D3 is approximately 1.14 Dl in inner wall diameter. The crown on the outer wall surface has a segmental thread 4 having an outer contour diameter D4 of approximately 1.26 inner wall diameter Dl. Below the thread crown 1 has a standard PET flange (s) 5.

Išilginiai sriegio daugiasienio segmentai yra išdėstyti galas prie galo spirale, pertraukti tarpais su vertikalaus sriegio žingsnio c (Fig. 1) ir tarpo pločio e (Fig. 2) santykiu apieThe longitudinal thread polygonal segments are arranged end-to-end in a spiral, interrupted by gaps with a ratio of vertical pitch step c (Fig. 1) to gap width e (Fig. 2) of about

1:2. Vienas atskirai paimtas sriegio segmentas turi nupjauto obelisko formą su trapecijos profiliu, turint segmento viršūnės paviršiaus ir segmento pagrindo plotų santykį apie 0,90. Gretimų segmentų mažesnieji trapeciniai šonai sudaro kampą a (Fig.1: 2. One single threaded segment has a cut obelisk shape with a trapezoidal profile having a ratio of the surface area of the tip of the segment to the area of the base of the segment of about 0.90. The smaller trapezoidal sides of adjacent segments form an angle a (Figs.

2) apie 45°.2) about 45 °.

Išradime siūlomas techninis sprendimas pasižymi tokiais techniniais ir naudingumo 5 privalumais:The technical solution proposed by the invention has the following technical and utility advantages:

- sumažintas žaliavinės medžiagos sunaudojimas gaminant butelį,- reduced consumption of raw material for bottle production,

- sumažinti gamybos kaštai,- reduced production costs,

- geresnis konteinerio (butelio) užveržimas,- better closure of the container / bottle,

- geresnis dangtelio šoninio paviršiaus padėties nustatymas sandarinamų paviršių 10 atžvilgiu,- better positioning of the lid side surface relative to the sealing surfaces 10,

- sumažinta butelio masė,- reduced bottle weight,

- optimalus jėgos paskirstymas ant sriegio kontaktavimo paviršių kuris pagerina butelio sandarumą.- Optimum distribution of force on the threaded contact surfaces, which improves bottle sealing.

Claims (4)

Išradimo apibrėžtisDefinition of the Invention 1. Plastikinio konteinerio kaklelis, savo viršutinėje dalyje turintis cilindrinį vainikėlį su 5 išoriniu segmentiniu sriegiu ir apskritus sutvirtinimus žemiau sriegio, besiskirian t i s tuo, kad kaklelio vainikėlis (1) turi sienelę, kurios išorinis diametras (D2) lygus apytiksliai (1,08 - 1,10) vidinio sienelės diametro (Dl) ir viršuje yra užbaigtas flanšu (3), kurio išorinis diametras (D3) lygus apytikriai (1,13 - 1,15) vidinio sienelės diametro (Dl) ir aukštis h lygus apytikriai 0,1 vidinio sienelės diametro (Dl), be to, ant1. The neck of a plastic container having a cylindrical crown with 5 outer segmental threads in its upper part and circular reinforcements below the thread, characterized in that the neck crown (1) has a wall having an outer diameter (D2) of approximately (1.08 to 1). , 10) has an inner wall diameter (Dl) and is completed at the top with a flange (3) having an outer diameter (D3) of approximately (1.13-1.115) inner wall diameter (Dl) and a height h of approximately 0.1 wall diameter (Dl), in addition to 10 išorinio sienelės paviršiaus jis turi sriegį (4), kurio išorinio kontūro diametras (D4) lygus apytikriai (1,24 - 1,28) vidinio sienelės diametro (Dl).The outer wall surface 10 has a thread (4) having an outer contour diameter (D4) of approximately (1.24-1.28) inner wall diameter (D1). 2. Plastikinio konteinerio kaklelis pagal 1 punktą besiskiriantis tuo, kad išorinio segmentinio sriegio žingsnio c santykis su tarpo tarp segmentų pločiu e yra2. The container neck of a plastic container according to claim 1, wherein the ratio of step c of the outer segment thread to the width e of the segments is 15 apie 1:2 ir kampas a tarp mažesniųjų dviejų gretimų sriegių segmentų briaunų yra 4050°, geriausiai 45°.15 about 1: 2 and the angle α between the smaller edges of the two adjacent thread segments is 4050 °, preferably 45 °. 3. Plastikinio konteinerio kaklelis pagal 1 ir/arba 2 punktą besiskiriantis tuo, kad išorinio sriegio segmentai yra padaryti formos, artimos daugiakampio su trapeciniu3. A plastic container neck according to claim 1 and / or 2, wherein the outer thread segments are made in the shape of a polygon with a trapezoidal 20 pro Iii iu formai, geriausiai nukirsto obelisko formos, kur segmento viršutinio paviršiaus ir segmento pagrindo plotų santykis yra <1, geriausiai 0,85-0,95.20 pro lii iu form, preferably in the shape of an obelisk, wherein the ratio of the area of the upper surface of the segment to the base of the segment is <1, preferably 0.85-0.95. 4. Plastikinio konteinerio kaklelis pagal bet kurį vieną iš 1-3 punktą besiskiriant i s tuo, kad išorinio sriegio segmentai yra išdėstyti galas prie galo atitinkamai bendraiA plastic container neck according to any one of claims 1 to 3, wherein the outer thread segments are end to end respectively 25 sriegio spiralei, kur tarpai tarp segmentų yra išrikiuoti vertikaliai vienas virš kito.25 helix, where the spacing between segments is vertically aligned.
LT2006086A 2006-11-09 2006-11-09 Neck finish of plastic container LT5520B (en)

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LT5520B true LT5520B (en) 2008-10-27

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4948001A (en) 1989-10-18 1990-08-14 Continental Can Company, Inc. Interrupted threads on a plastic bottle finish
EP0675047A1 (en) 1994-03-28 1995-10-04 Hoover Universal,Inc. Heat set neck finish with segmented threads
US6471909B1 (en) 1997-10-10 2002-10-29 Owens-Brockway Plastic Products Inc. Blown plastic containers with threads
US6635325B1 (en) 1997-10-31 2003-10-21 Schmalbach-Lubeca Ag Parison whose neck is based on an aromatic polyester, and in particular on pet, the neck including a thread having a profile in longitudinal section that is asymmetrical

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4948001A (en) 1989-10-18 1990-08-14 Continental Can Company, Inc. Interrupted threads on a plastic bottle finish
EP0675047A1 (en) 1994-03-28 1995-10-04 Hoover Universal,Inc. Heat set neck finish with segmented threads
US6471909B1 (en) 1997-10-10 2002-10-29 Owens-Brockway Plastic Products Inc. Blown plastic containers with threads
US6635325B1 (en) 1997-10-31 2003-10-21 Schmalbach-Lubeca Ag Parison whose neck is based on an aromatic polyester, and in particular on pet, the neck including a thread having a profile in longitudinal section that is asymmetrical

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