SE438632B - SPRING ELEMENT - Google Patents
SPRING ELEMENTInfo
- Publication number
- SE438632B SE438632B SE8207050A SE8207050A SE438632B SE 438632 B SE438632 B SE 438632B SE 8207050 A SE8207050 A SE 8207050A SE 8207050 A SE8207050 A SE 8207050A SE 438632 B SE438632 B SE 438632B
- Authority
- SE
- Sweden
- Prior art keywords
- piece
- clamp
- resilient element
- strip
- tongue
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42F—SHEETS TEMPORARILY ATTACHED TOGETHER; FILING APPLIANCES; FILE CARDS; INDEXING
- B42F1/00—Sheets temporarily attached together without perforating; Means therefor
- B42F1/02—Paper-clips or like fasteners
- B42F1/10—Paper-clips or like fasteners non-metallic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
- B29C2045/7343—Heating or cooling of the mould heating or cooling different mould parts at different temperatures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
- B29C2045/735—Heating or cooling of the mould heating a mould part and cooling another mould part during moulding
Description
szovqso-9 De exakta fysikaliska förlogpen som därvid utspelar sig är inte kända, men det kan förmodas att den vid förfarandet uppkomna temperatur- skillnaden mellan kärnan och den del av formen, som omger formhål- rummet, i koznbination med plastmaterialens krympningsegenskaper är av avgörande betydelse för fenomenet. Klart är också att spänningar byggs in i den färdiga klänunan, att dessa spänningar åstadkommer ett tryck mellan tungan och benet och att spänningarna inte försvinner även om klämnan hålls utspänd under långa tidsperioder. szovqso-9 The exact physical precursors which take place there are not known, but it can be assumed that the temperature difference arising in the process between the core and the part of the mold which surrounds the mold cavity, in combination with the shrinkage properties of the plastic materials, is of crucial importance. for the phenomenon. It is also clear that stresses are built into the finished dresser, that these tensions create a pressure between the tongue and the leg and that the tensions do not disappear even if the clamp is kept taut for long periods of time.
De för uppfinningen utmärkande särdragen framgår av de bifogade patentkraven.The features characteristic of the invention appear from the appended claims.
Uppfinningen kommer att beskrivas närmare nedan i. anslutning till den bifogade ritningen, i vilken fig. 1 visar ett fjädrande elenent enligt uppfinningen.The invention will be described in more detail below in connection with the accompanying drawing, in which Fig. 1 shows a resilient element according to the invention.
Figur 1 visar att det fjädrande elementet enligt uppfinningen har formen av en klämma. Klämman är framställd av ett luarxdlikrxande stycke - av ett i värme formbart, normalt fast material. Bandstycket är tillbakavi-kt för bildande av en tunga 16 el.dyl. som har fjädringsegenskaper och som i klämmans inte utfjädrande tillstånd är i kontakt med ett område av bandstyckets inte tillbakavikta avsnitt 17.Figure 1 shows that the resilient element according to the invention is in the form of a clamp. The clamp is made of a luarx-like piece - of a heat-moldable, normally solid material. The strip piece is folded back to form a tongue 16 or the like. which have resilient properties and which, in the non-resilient condition of the clamp, are in contact with an area of the non-retractable section 17 of the strip.
Materialet är plast och klämman är en i ett stycke gjuten enhet vars lmntakttryck är i storleksordningen av ca. 5 grampond/mm.The material is plastic and the clamp is a one-piece molded unit whose inlet pressure is in the order of approx. 5 gram pounds / mm.
Ex¶ïl l Ett antal klämmor framställdes av polyetenplast som i Sverige saluförs' av Shell under kvalitetsbeteclmingen SM 6100 blandad med i ett fall ett blått -ñrgpigment (Master batch), varvid blå kläxnmor erhölls, och i ett annat fall med vitt färgpigment, varvid vita klämmor erhölls. Varje klämma var 32 mm bred, det tillbakavíkta partiet (den kortare tungan) hade en längd av 54 mm och den längre tungan hade en längd av 70 mm. En blå klämma och en vit klämma valdes och med dessa företags följande av kontakttrycket mellan tungorna. 8207050-9 Först borrades ett litet hål i vardera hörnet av den kortare tungans uppsvärxgda parti och en tråd bands mellan hålen. Klämman fixerades och en dynamometer anbringades i den bildade trådöglans mittparti. Därefter drog man sakta idynamometern tills man genom visuell observation kunde fastställa när tungornas kontakt med varandra bröts. Då avlästes dynamometern. Flera försök gjordes med varje klämma och följande värden erhölls- Eabill l Iïlâbíll. å (blå klännna) (vit klämma) 130 g 100 g 200 g 150 g 220 g 150 g Ešïel 3.Example 1 A number of clamps were made of polyethylene plastic marketed in Sweden by Shell under the quality designation SM 6100 mixed with in one case a blue -rrg pigment (Master batch), whereby blue clamps were obtained, and in another case with white color pigment, whereby white clamps were obtained. Each clamp was 32 mm wide, the recessed portion (the shorter tongue) had a length of 54 mm and the longer tongue had a length of 70 mm. A blue clamp and a white clamp were chosen and with these companies the following of the contact pressure between the tongues. 8207050-9 First, a small hole was drilled in each corner of the shortened portion of the shorter tongue and a wire was tied between the holes. The clamp was fixed and a dynamometer was placed in the middle portion of the formed wire loop. Then slowly pull the idynamometer until you could determine by visual observation when the tongues' contact with each other was broken. Then the dynamometer was read. Several attempts were made with each clamp and the following values were obtained- Eabill l Iïlâbíll. å (blue dress) (white clamp) 130 g 100 g 200 g 150 g 220 g 150 g Ešïel 3.
Samma klämmor som i exempel l användes. Klämman fixerades i horisontellt läge med kantsidan vänd uppåt. Ett tunt pappersstycke insattes i klämman och man drog sakta med dynamometern och avläste följande värden: Tabell å :llalïzjå få 160 g 150 g 250 g 140 g 220 g 160 g Av exemplen framgår att kontakttrycket varierar mellan 100 gp och 150 gp (grampond). Omräknas dessa sifror till linjetryck (tryck per längdenhet utmed klämmans bredd), erhålls 3 respektive 8 gp/mm. Med hänsyn till viss onoggranrlhet i resultaten varierar linjetrycket för de enligt uppfinningen framställda klämmorna utöver de angivna rnätvärdena.The same clamps as in Example 1 were used. The clamp was fixed in a horizontal position with the edge side facing up. A thin piece of paper was inserted into the clamp and the dynamometer was drawn slowly and the following values were read: Table å: llalïzjå get 160 g 150 g 250 g 140 g 220 g 160 g 160 g The examples show that the contact pressure varies between 100 gp and 150 gp (gram pounds). If these figures are converted to line pressure (pressure per unit length along the width of the clamp), 3 and 8 gp / mm, respectively, are obtained. Due to some inaccuracies in the results, the line pressure of the terminals produced according to the invention varies in addition to the specified network values.
För de valda, uppmätta klämmorna torde linjetrycket uppgå till ca. 5 QP/flm- Den ovan beskrivna utföringsformen av uppfinningen kan på nånga olika sätt :nodifieras och varieras inom ramen för uppfinningens grundtanke.For the selected, measured clamps, the line pressure should amount to approx. QP / fl m- The above-described embodiment of the invention can be modified and varied in several different ways within the scope of the basic idea of the invention.
Claims (2)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8101760A SE428447B (en) | 1981-03-19 | 1981-03-19 | SET TO MAKE A RESISTANT ELEMENT OF PLASTIC |
Publications (3)
Publication Number | Publication Date |
---|---|
SE8207050L SE8207050L (en) | 1982-12-09 |
SE8207050D0 SE8207050D0 (en) | 1982-12-09 |
SE438632B true SE438632B (en) | 1985-04-29 |
Family
ID=20343375
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8101760A SE428447B (en) | 1981-03-19 | 1981-03-19 | SET TO MAKE A RESISTANT ELEMENT OF PLASTIC |
SE8207050A SE438632B (en) | 1981-03-19 | 1982-12-09 | SPRING ELEMENT |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8101760A SE428447B (en) | 1981-03-19 | 1981-03-19 | SET TO MAKE A RESISTANT ELEMENT OF PLASTIC |
Country Status (3)
Country | Link |
---|---|
DK (1) | DK147538C (en) |
SE (2) | SE428447B (en) |
WO (1) | WO1982003204A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006003545B4 (en) * | 2006-01-24 | 2012-06-06 | "Durable" Hunke & Jochheim Gmbh & Co. Kg | Designed as an injection molded part nameplate and method for producing this nameplate |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1187966A (en) * | 1966-06-03 | 1970-04-15 | W & J Jarvis Ltd | Improved Attachment Means for Sheets of Paper and the like. |
FR1527582A (en) * | 1967-06-16 | 1968-05-31 | Attachment for documents |
-
1981
- 1981-03-19 SE SE8101760A patent/SE428447B/en not_active IP Right Cessation
-
1982
- 1982-03-19 WO PCT/SE1982/000079 patent/WO1982003204A1/en active Application Filing
- 1982-11-16 DK DK510482A patent/DK147538C/en not_active IP Right Cessation
- 1982-12-09 SE SE8207050A patent/SE438632B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
WO1982003204A1 (en) | 1982-09-30 |
DK510482A (en) | 1982-11-16 |
SE8207050L (en) | 1982-12-09 |
SE428447B (en) | 1983-07-04 |
DK147538C (en) | 1985-03-18 |
SE8101760L (en) | 1982-09-20 |
DK147538B (en) | 1984-09-24 |
SE8207050D0 (en) | 1982-12-09 |
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