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SE463843B - SUSPENSIVE AND TREASURY LOADING PRECAUTIONS FOR ELECTRICAL CABLES - Google Patents

SUSPENSIVE AND TREASURY LOADING PRECAUTIONS FOR ELECTRICAL CABLES

Info

Publication number
SE463843B
SE463843B SE8404975A SE8404975A SE463843B SE 463843 B SE463843 B SE 463843B SE 8404975 A SE8404975 A SE 8404975A SE 8404975 A SE8404975 A SE 8404975A SE 463843 B SE463843 B SE 463843B
Authority
SE
Sweden
Prior art keywords
sleeve
fingers
nipple
nut
screw
Prior art date
Application number
SE8404975A
Other languages
Swedish (sv)
Other versions
SE8404975L (en
SE8404975D0 (en
Inventor
Lars Magnus Melin
Bjoern Kardefeldt
Original Assignee
Thorsman & Co Ab
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 Thorsman & Co Ab filed Critical Thorsman & Co Ab
Priority to SE8404975A priority Critical patent/SE463843B/en
Publication of SE8404975D0 publication Critical patent/SE8404975D0/en
Priority to PCT/SE1985/000374 priority patent/WO1986002209A1/en
Priority to EP19850905123 priority patent/EP0196326A1/en
Priority to JP50451785A priority patent/JPS62500349A/en
Publication of SE8404975L publication Critical patent/SE8404975L/en
Priority to NO86862082A priority patent/NO169149C/en
Priority to FI862228A priority patent/FI83375C/en
Priority to DK260486A priority patent/DK159702C/en
Publication of SE463843B publication Critical patent/SE463843B/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/06—Joints for connecting lengths of protective tubing or channels, to each other or to casings, e.g. to distribution boxes; Ensuring electrical continuity in the joint
    • H02G3/0616—Joints for connecting tubing to casing
    • H02G3/0625—Joints for connecting tubing to casing with means for preventing disengagement of conductors
    • H02G3/065—Joints for connecting tubing to casing with means for preventing disengagement of conductors with means biting into the conductor-insulation, e.g. teeth-like elements or gripping fingers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/06—Joints for connecting lengths of protective tubing or channels, to each other or to casings, e.g. to distribution boxes; Ensuring electrical continuity in the joint
    • H02G3/0616—Joints for connecting tubing to casing
    • H02G3/0625—Joints for connecting tubing to casing with means for preventing disengagement of conductors
    • H02G3/0675—Joints for connecting tubing to casing with means for preventing disengagement of conductors with bolts operating in a direction parallel to the conductors

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Cable Accessories (AREA)
  • Installation Of Indoor Wiring (AREA)
  • Insulating Bodies (AREA)
  • Bridges Or Land Bridges (AREA)

Description

463 843 2 10 15 20 25 tätt att det kan vara svårt och tidsödande att med ett verktyg sätta an en mutter. Detta har till följd att tätningen vid genomföríngar ofta blir bristfällig. Även genomföringar av s.k. chucktyp har utvecklats, vilka genomföringar är så utformade att en genomföringshylsa omslutande yttre hylsmutter med ett inre trattformigt parti anligger mot från hylsändan utgående axiellt riktade fingrar, vilka omsluter en rörformig gummitätning, som vid hylsmutterns ansättning pressas i riktning mot en genom genomföringen dragen kabel. Förutom att dessa genomföringar endast klarar av små diameterintervall, så kräver de en kraftig ansättning av hylsmuttern för att ge fullgod tätning och dragavlastning. 463 843 2 10 15 20 25 often that it can be difficult and time consuming to use one with a tool nut. As a result, the seal at penetrations often becomes defective. Also penetrations of so-called chuck type has been developed, which implementations are so designed to have a bushing sleeve enclosing the outer sleeve nut with an inner funnel-shaped portion abuts against axially directed fingers extending from the sleeve end, which enclose a tubular rubber seal, as in the application of the sleeve nut pressed in the direction of a cable pulled through the bushing. In addition to these bushings can only handle small diameter ranges, so they require a strong application of the sleeve nut to provide adequate sealing and strain relief.

REDOGÜRELSE FÖR UPPFINNINGEN Ändamålet med uppfinningen är att åstadkomma en genomföring, som eli- minerar ovan angivna nackdelar, dvs en genomföring som inte kräver individuell anpassning av packningsstorleken till kabeln utan erbjuder god tätning mot kablar liggande inom ett stort diameterintervall och detta oberoende av mutterns ansättningsgrad. Ett ytterligare ändamål är att åstadkomma en lätt ansättbar förskruvning, som kan ansättas i erforderlig grad för hand utan användandet av verktyg. Detta uppnås enligt uppfinningen genom en i genom- föringshylsan mot hylsans insida tätande anordnad elastisk strypnippel, som är utformad så att den ger fullgod tätning mot i förskruvningen införda kablar liggande inom ett för förskruvning avsett diameterintervall oberoende av hylsmutterns ansättning.DESCRIPTION OF THE INVENTION The object of the invention is to provide an implementation which eli- mines the above disadvantages, ie an implementation that does not require individual adaptation of the packing size to the cable but offers good sealing against cables lying within a large diameter range and this independently of the degree of employment of the nut. An additional object is to provide an easy adjustable fitting, which can be fitted to the required degree by hand without the use of tools. This is achieved according to the invention by a the guide sleeve against the inside of the sleeve sealingly arranged elastic throttle nipple, which is designed so that it provides a good seal against cables inserted in the screw connection lying within a diameter range intended for screwing independent of sleeve nut attachment.

FIGURBESKRIVNING Ett utföringsexempel av uppfinningen skall närmare beskrivas i anslutning till bifogade ritning, i vilken figur 1 visar ett axiellt snitt genom en genomföring och figur 2 i perspektiv visar en sprängskiss av en genomföring.DESCRIPTION OF FIGURES An embodiment of the invention will be described in more detail in connection with attached drawing, in which figure 1 shows an axial section through a bushing and figure 2 in perspective shows an exploded view of a bushing.

FÖREDRAGEN UTFÖRINGSFORM I figur 1, som visar ett axiellt snitt av genomföringen, betecknar 1 en hylsa med en i dess ena ändparti anordnad gänga 2 för anslutning av genomföringen till ett ej visat apparathölje. Hylsan 1 omslutes delvis av en hylsmutter 3, vars invändiga gänga 4 är i ingrepp med en pa hylsans utsida anordnad andra gänga 5. 10 15 20 25 s 463 843 Hylsmuttern 3, vars utsida är räfflad, omfattar ett invändigt trattformat parti 6, som anligger mot i hylsans andra ändparti anordnade fingrar 7, vars fria ändar vid hylsmutterns 3 ansättning är avsedda att pressas mot och gripa tag i en genom genomföringen dragen ej visad kabel. Inuti hylsan l är en av elastiskt material utformad strypnippel 8 placerad, vilken omfattar ett trattformigt parti ll omgivet av ett i det närmaste cylindriskt rörformat parti 9, som tätande anligger mot hylsans insida och mot en i hylsväggen anordnad ansats 10.PREFERRED EMBODIMENT In Figure 1, which shows an axial section of the bushing, 1 denotes a sleeve with a thread 2 arranged in its one end portion for connecting the bushing to one device housing not shown. The sleeve 1 is partly enclosed by a sleeve nut 3, whose internal thread 4 engages with a second thread 5 arranged on the outside of the sleeve. 10 15 20 25 s 463 843 The sleeve nut 3, the outside of which is knurled, comprises an inner funnel-shaped portion 6, which abut against fingers 7 arranged in the other end portion of the sleeve, the free ones of which ends at the socket nut 3 application are intended to be pressed against and grasp a cable not shown through the bushing. Inside the sleeve 1 is one of elastic material formed throttle nipple 8 placed, which comprises a funnel-shaped portion 11 surrounded by an almost cylindrical tubular portion 9, which sealing abuts against the inside of the sleeve and against a shoulder 10 arranged in the sleeve wall.

Genom att fingrarna 7 vid hylsmutterns 6 ansättning böjes över strypnippelns 8 kant pressas strypnippeln mot ansatsen 10 och anligger med tryck mot denna.By bending the fingers 7 at the application of the sleeve nut 6 over the throttle nipple 8 edge, the throttle nipple is pressed against the shoulder 10 and abuts with pressure against it.

I figur 2, som i perspektiv visar en sprängskiss av genomföringen har samma beteckningar som i figur 1 använts på de olika detaljerna. Av figur 2 framgar, att genomföringen omfattar ett i huvudsak sexsidigt parti 12, som underlättar genomföringens fästande på ett apparathölje.In figure 2, which in perspective shows an exploded view of the bushing has the same designations used in Figure 1 on the various details. Figure 2 shows, that the implementation comprises a substantially hexagonal portion 12, which facilitates attachment of the bushing to an apparatus housing.

Genom att genomföringens tätande och dragavlastande funktioner skiljts fran varandra och genom strypnippelns utformning och lasta placering i hylsan erhålles alltid god tätning mellan kabeln och genomföringen oberoende av om hylsmuttern ansatts eller ej. Detta är ett viktigt framsteg, då erfarenheterna visar att ett betydande antal monterade konventionella genomföringar inte tätar i avsedd grad, beroende på såväl glömska som svårigheter att komma åt att med ett verktyg sätta an hylsmuttern. Då det vid föreliggande genomföring vid ansättning av hylsmuttern inte sker någon deformation av en tätande packning eller liknande låter sig för låsning av kabeln hylsmuttern lätt ansättas för hand utan verktyg. Genom sin speciella utformning fungerar genomföringen inom ett diameterintervall, i vilket förhållande mellan minsta och största kabeldiameter är 1 till 3. Detta innebär att en och samma genomföring exempelvis kan täcka diameterintervallet 5 - 15 mm. Härigenom uppnås en avsevärd reduktion av erforderligt genomföringssortiment samtidigt som be- hovet av kabelanpassade gummipackningar helt eliminerats.By separating the sealing and strain-relieving functions of the bushing each other and through the design of the throttle nipple and load placement in the sleeve a good seal is always obtained between the cable and the bushing, regardless of whether the sleeve nut is engaged or not. This is an important step forward, given the experience shows that a significant number of mounted conventional bushings do not seals to the intended degree, depending on both forgetfulness and difficulty in accessing to attach the sleeve nut with a tool. Then it at the present implementation when applying the sleeve nut, no deformation of a seal occurs gasket or similar can be easily applied for locking the cable socket nut by hand without tools. Due to its special design, the implementation works within a diameter range, in which ratio between smallest and largest cable diameter is 1 to 3. This means that one and the same bushing for example, can cover the diameter range 5 - 15 mm. In this way one is achieved significant reduction of the required implementation range at the same time as the hoof of cable-fitted rubber gaskets is completely eliminated.

Claims (4)

463 10 15 20 25 843 PATENTKRAV 1 Tätande och dragavlastande förskruvning för genomföring av elek- triska kablar i höljen till elektrisk apparatur av olika slag, vilken förskruvning omfattar en rörformig av elastiskt material framställd hylsa (1) med en i hyl- sans ena ändparti anordnad yttre gänga (2) för anslutning av förskruv- ningen till ett apparathölje eller liknande, en i hylsan tätande anordnad strypnippel (8), ett antal i hylsans andra ändparti anordnade fingrar (7) och en hylsan partiellt omslutande och med en andra på hylsans utsida an- ordnad gänga (5) i ingrepp stående hylsmutter (3), vilken med ett in- vändigt trattformat parti (6) anligger mot fingrarna (7), vilka vid hylsmutterns (3) ansättning pressas mot och griper tag i en genom för- skruvningen dragen kabel, k ä n n e t e c k n a d därav att fingrarna (7) innefattas av hylsan (1) och bildas i dess andra ändparti genom längsgående urtag, varigenom en endast tre delar omfattande utformning av förskruvningen möjliggöres. 463 10 15 20 25 843 CLAIM 1 Sealing and strain-relieving fitting for carrying electrical cables in the housings of electrical equipment of various kinds, which fitting comprises a sleeve (1) made of tubular material made of an end portion arranged in one of the sleeves external thread (2) for connecting the screw connection to an apparatus housing or the like, a choke nipple (8) arranged in the sleeve sealingly, a number of fingers (7) arranged in the second end portion of the sleeve and a sleeve partially enclosing and having a second on the outside of the sleeve arranged thread (5) engaging sleeve nut (3), which with an inner funnel-shaped portion (6) abuts against the fingers (7), which at the application of the sleeve nut (3) are pressed against and grip a through screw drawn cable, characterized in that the fingers (7) are enclosed by the sleeve (1) and are formed in its second end portion by longitudinal recesses, whereby a design of only three parts comprising the screw is made possible. . 2 Förskruvning enligt krav 1, k ä n n e t e c k n a d därav att strypnippeln (8) omfattar ett trattformigt parti (11) omgivet av ett i det närmaste cylindriskt rörformat parti (9). Screwing according to claim 1, characterized in that the throttle nipple (8) comprises a funnel-shaped portion (11) surrounded by an almost cylindrical tubular portion (9). 3 Förskruvning enligt krav 1 och 2, k ä n n e t e c k n a d därav att strypnippeln (8) med en av det rörformiga partiet (9) omfattad första kantyta anligger mot en invändigt i hylsan anordnad ansats (10). Screwing according to Claims 1 and 2, characterized in that the throttle nipple (8) with a first edge surface covered by the tubular portion (9) abuts against a shoulder (10) arranged internally in the sleeve. 4 Förskruvning enligt krav 3, k ä n n e t e c k n a d därav att fingrarna (7) vid hylsmutterns (3) applicering på hylsan (1) böjes över en av strypnippelns (8) rörformiga parti (9) omfattad andra kant- yta (12) och därvid bringar det rörformiga partiets första kantyta att med tryck anligga mot ansatsen (10).Screw according to Claim 3, characterized in that the fingers (7), when the sleeve nut (3) is applied to the sleeve (1), bend over a second edge surface (12) comprising a tubular portion (9) of the choke nipple (8) and thereby bring the first edge surface of the tubular portion to abut with pressure against the shoulder (10).
SE8404975A 1984-10-04 1984-10-04 SUSPENSIVE AND TREASURY LOADING PRECAUTIONS FOR ELECTRICAL CABLES SE463843B (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
SE8404975A SE463843B (en) 1984-10-04 1984-10-04 SUSPENSIVE AND TREASURY LOADING PRECAUTIONS FOR ELECTRICAL CABLES
PCT/SE1985/000374 WO1986002209A1 (en) 1984-10-04 1985-09-27 A sealing and tension-relieving screw fitting for cables
EP19850905123 EP0196326A1 (en) 1984-10-04 1985-09-27 A sealing and tension-relieving screw fitting for cables
JP50451785A JPS62500349A (en) 1984-10-04 1985-09-27 Sealing and strain relief screw fittings for cables
NO86862082A NO169149C (en) 1984-10-04 1986-05-26 SEALING AND STRESSLY LOADING CABLE CRUEL
FI862228A FI83375C (en) 1984-10-04 1986-05-27 TAXANDE OCH DRAGAVLASTANDE KABELFOERSKRUVNING.
DK260486A DK159702C (en) 1984-10-04 1986-06-03 SUSPENSIVE AND TENSIVE RELIEF CABLE SCREW

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8404975A SE463843B (en) 1984-10-04 1984-10-04 SUSPENSIVE AND TREASURY LOADING PRECAUTIONS FOR ELECTRICAL CABLES

Publications (3)

Publication Number Publication Date
SE8404975D0 SE8404975D0 (en) 1984-10-04
SE8404975L SE8404975L (en) 1986-04-05
SE463843B true SE463843B (en) 1991-01-28

Family

ID=20357236

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8404975A SE463843B (en) 1984-10-04 1984-10-04 SUSPENSIVE AND TREASURY LOADING PRECAUTIONS FOR ELECTRICAL CABLES

Country Status (7)

Country Link
EP (1) EP0196326A1 (en)
JP (1) JPS62500349A (en)
DK (1) DK159702C (en)
FI (1) FI83375C (en)
NO (1) NO169149C (en)
SE (1) SE463843B (en)
WO (1) WO1986002209A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO339633B1 (en) * 2001-02-20 2017-01-16 Hubbell Ltd Cable entry device

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2313433B (en) * 1990-04-27 1998-02-18 British Aerospace Shock absorbers
GB2363007B (en) * 2000-06-01 2004-03-24 Avc Ind Corp Cable fastener
DE102009023646A1 (en) * 2009-05-25 2010-12-02 Bimed Teknik A.S., Büyükcekmece Cable/hose joint for guiding cable or hose in/from e.g. switching cabinet, has filter element arranged inside connecting piece such that air interchange between interior of piece and surrounding area takes place through sub-regions
US9343890B2 (en) 2013-01-23 2016-05-17 Thomas & Betts International Llc Electrical cable restrain device using a double wedge chuck
AU2015200676B2 (en) * 2014-03-18 2015-12-10 Thomas & Betts International, Llc Cable restrain device with dual-material double wedge chuck
KR101611269B1 (en) * 2014-09-15 2016-04-12 주식회사 케이피씨 Cable fixing structure of waterproof pan case
CN104527546B (en) * 2015-01-21 2016-09-14 安徽安凯汽车股份有限公司 A kind of passenger vehicle via protection device
CN110112693A (en) * 2019-05-30 2019-08-09 沪东中华造船(集团)有限公司 A kind of novel diameter reducing cable gland

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2140719A5 (en) * 1971-03-16 1973-01-19 Marechal Sepm
CH567807A5 (en) * 1972-03-18 1975-10-15 Elettroplast Spa
GB1389846A (en) * 1972-04-20 1975-04-09 Hawke Cable Glands Ltd Cable glands
DE2547914A1 (en) * 1975-10-25 1977-05-05 Buendoplast Gmbh Cable connector with tension relief - has ring seal and clamping ring pressed by internal cone
DE3176702D1 (en) * 1980-09-30 1988-05-05 Kitagawa Ind Co Ltd Cable clamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO339633B1 (en) * 2001-02-20 2017-01-16 Hubbell Ltd Cable entry device

Also Published As

Publication number Publication date
JPS62500349A (en) 1987-02-05
DK260486D0 (en) 1986-06-03
SE8404975L (en) 1986-04-05
DK159702C (en) 1991-04-15
FI862228A0 (en) 1986-05-27
DK159702B (en) 1990-11-19
FI83375C (en) 1991-06-25
NO862082L (en) 1986-05-26
NO169149C (en) 1992-05-13
FI83375B (en) 1991-03-15
EP0196326A1 (en) 1986-10-08
SE8404975D0 (en) 1984-10-04
DK260486A (en) 1986-06-03
FI862228A (en) 1986-05-27
WO1986002209A1 (en) 1986-04-10
NO169149B (en) 1992-02-03

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