EP0020626A1 - Bride pour tuyau - Google Patents

Bride pour tuyau

Info

Publication number
EP0020626A1
EP0020626A1 EP79901615A EP79901615A EP0020626A1 EP 0020626 A1 EP0020626 A1 EP 0020626A1 EP 79901615 A EP79901615 A EP 79901615A EP 79901615 A EP79901615 A EP 79901615A EP 0020626 A1 EP0020626 A1 EP 0020626A1
Authority
EP
European Patent Office
Prior art keywords
screw
screw housing
spring
housing
band
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP79901615A
Other languages
German (de)
English (en)
Inventor
Sven Bertil Larsson
Bengt Uno Ingemar Andersson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0020626A1 publication Critical patent/EP0020626A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose-connectors, i.e. single members engaging both hoses
    • F16L33/02—Hose-clips
    • F16L33/08—Hose-clips in which a worm coacts with a part of the hose-encircling member that is toothed like a worm-wheel

Definitions

  • the present invention relates to hose clamps consisting of a band bent so as to form a ring capable of being threaded on to a hose or similar device, one end section of the said band supporting a screw housing for a worm screw capable of rotating within this screw housing and supported in such a way as to permit limited axial displacement, whereby the head of the said screw facing in the same direction as the other end section of the band is located outside one end wall of the screw housing whereas the other end is located within the screw housing and on the inside of its other end wall, with the worm screw engaging thread grooves provided in the other end section of the band capable of moving through the screw housing.
  • Fig. 1 is an exploded sketch of a hose clamp arranged in accordance with the invention
  • Fig. 2 is a perspective view of the assembled hose clamp
  • Fig. 3 is a central section through the hose clamp parallel to the plane of the said hose clamp in a non-tightened state
  • Fig. 4 is the same section with the hose clamp tightened about a hose not shown in the drawing
  • Fig. 5 is a perspective view of a spring device forming part of the hose clamp
  • Fig. 6 is a section through the hose clamp with a different design of spring device
  • Fig. 7 is a view of the hose clamp in fig. 6 seen from above.
  • the hose clamp shown consists of a band 1 bent so as to form a ring capable of threading on to a hose or similar device not shown in the drawing.
  • One end section 6 of the band supports the screw housing 3 for a worm screw 2 capable of rotating within the screw housing and so supported as to be capable of limited axial displacement.
  • The.head 12 of the worm screw facing in the same direction as the other end section 5 of the band is located outside one end wall 10 of the screw housing whereas the other end 14 is located within the screw housing and on the inside of the other end wall 9 of the screw housing.
  • the said other end section 5 of the band can be moved through the screw housing in known manner and is provided with oblique thread grooves 7 the pitch of which corresponds to the pitch of the worm screw, with the threaded screw engaging the said thread grooves.
  • the end section 5 of the band moves between two lugs 8 provided at the edges of the end section 6 and facing radially outward, the said lugs forming a support for the screw housing 3, which is designed as a cover with two end walls, whereby the end section 6 of the band constitutes the underside of the screw housing.
  • a recess 11 in the screw housing end wall 10, which is open at the bottom acts as a support for a neck 13 of somewhat reduced diameter between head 12 of the worm screw and the threaded section of the worm screw. The length of the neck enables limited axial displacement of work screw 2 in relation to the screw housing 3.
  • a spring device 4 is provided within the screw housing between the end wall 9 of the screw housing and the worm screw end 14, the said spring device being held in place and partially protected by a tab 15 projecting from the bottom edge of end wall 9 and bent inward.
  • This spring device consists of a spirally wound spring band.
  • the end 14 of the worm screw abuts the spring device 4 and given a sufficient tightening force compresses the latter as a result of axi ⁇ l displacement, see fig. 4. If at a later stage the hose material settles, the spring device can displace the worm screw in the direction towards end wall 10 of the screw housing, whereby the worm screw pulls along the end section 5 of the band so that at least part of the hose clamp's tightening force is maintained.
  • the spring device 4 Since the spring device 4 is thus located within the screw housing it is better protected against corrosive environmental action than the corresponding spring device of the known hose clamp according to the above U.S. patent 3 765 066, a further consideration being that a spirally wound spring band is capable of producing, within a given limited space, a considerably larger spring force than a helically wound spring wire.
  • the spring device 4 consists of a straight spring band arranged between the worm screw 2 and the upper part of the screw housing 3, whereby the end of the said spring band facing the screw head 12 is designed so as to form a hook 16 which engages an edge in the screw housing facing the said screw head.
  • this edge consists in one side of an opening 17 in "tbe screw housing, through which the hook projects.
  • the other end section of the spring leaf is spirally wound and radially abuts end 14 of the worm screw. If in the course of tightening the hose clamp the worm screw is displaced axially through the screw housing the spirally wound section of the spring band straightens out somewhat while pressing against the worm screw.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Clamps And Clips (AREA)

Abstract

Des brides de tuyau consistent en une bande pliee de maniere a former une bague (1) susceptible d'etre vissee sur un tuyau ou autre dispositif semblable dont une extremite (6) de la bande supporte un logement de vis (3) pour une vis sans fin (2) situee dans le logement de vis de maniere a pouvoir tourner et avoir un mouvement limite, la tete de vis (12) qui regarde dans le meme sens que l'extremite de la bande est situee a l'exterieur d'une paroi extreme (10) du logement de vis et l'autre extremite (14) est situee dans le logement de vis et a l'interieur de son autre paroi extreme (9), ladite vis sans fin s'engageant dans des rainures filetees (7) dans l'autre partie extreme (5) de la bande qui peut etre deplacee a travers le logement de vis. De maniere a compenser l'effet eventuel de tassement du materiau du tuyau serre par la bride de serrage du tuyau, ce qui diminue partiellement le serrage de la bride autour du tuyau, un dispositif est propose selon lequel un dispositif ressort agit sur la vis dans une direction donnant au dispositif ressort une tendance a deplacer la vis axialement dans une direction de serrage de la bride. Le dispositif ressort propose consiste en un fil metallique formant ressort enroule de maniere helicoidale et filete sur la vis, qui n'est pas protegee et produit une force de ressort limitee. Une action de ressort plus forte et une plus grande protection du dispositif ressort sont obtenus en concevant le dispositif ressort sous forme d'une bande ressort (4) constituant un ressort de compression, qui est situe dans le logement de vis (3) entre ladite autre paroi extreme (9) du logement de vis et l'extremite (14) de la vis sans fin.
EP79901615A 1978-12-07 1980-06-17 Bride pour tuyau Withdrawn EP0020626A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE7812588A SE7812588L (sv) 1978-12-07 1978-12-07 Slangklemma
SE7812588 1978-12-07

Publications (1)

Publication Number Publication Date
EP0020626A1 true EP0020626A1 (fr) 1981-01-07

Family

ID=20336546

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79901615A Withdrawn EP0020626A1 (fr) 1978-12-07 1980-06-17 Bride pour tuyau

Country Status (5)

Country Link
EP (1) EP0020626A1 (fr)
BE (1) BE880463A (fr)
IT (1) IT1164811B (fr)
SE (1) SE7812588L (fr)
WO (1) WO1980001199A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8518277D0 (en) * 1985-07-19 1985-08-29 Turner D L Hose clamps
US5327618A (en) * 1992-05-22 1994-07-12 Etablissements Caillau Hose clamp incorporating tightening screw
US5410781A (en) * 1993-12-13 1995-05-02 Tridon Limited Constant tension clamp
DE20205962U1 (de) 2002-04-17 2002-07-11 Breeze Pebra GmbH, 78665 Frittlingen Schlauchschelle
KR101861239B1 (ko) * 2016-09-29 2018-05-25 (주)옥시메이트 노 허브 커플링 조립 장치

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2522494A (en) * 1945-08-30 1950-09-19 Baldo Louie Hose clamp
US3765066A (en) * 1972-04-14 1973-10-16 A Nitz Hose clamp

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8001199A1 *

Also Published As

Publication number Publication date
SE7812588L (sv) 1980-06-08
IT7951023A0 (it) 1979-12-07
IT1164811B (it) 1987-04-15
WO1980001199A1 (fr) 1980-06-12
BE880463A (fr) 1980-04-01

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): FR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19810102