WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |

Search International and National Patent Collections
World Intellectual Property Organization
Machine translation
1. (WO1980001199) HOSE CLAMP
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1980/001199    International Application No.:    PCT/SE1979/000241
Publication Date: 12.06.1980 International Filing Date: 22.11.1979
F16L 33/08 (2006.01)
Priority Data:
7812588 07.12.1978 SE
Abstract: front page image
(EN)Hose clamps consisting of a band bent so as to form a ring (1) capable of being threaded onto a hose or similar device whereby one end section (6) of the band supports a screw housing (3) for a worm screw (2) located in the screw housing in such a way as to be rotatable and capable of limited movement the screw head (12) which faces in the same direction as the end of the band, being located outside one end wall (10) of the screw housing and the other end (14) being located within the screw housing and on the inside of its other end wall (9), the said worm screw engaging threaded grooves (7) in the other end section (5) of the band which can be moved through the screw housing. In order to counteract the fact that the material of the hose tightened by the hose clamp eventually settles so that the hose clamp partly loses its grip about the hose an arrangement has been proposed according to which a spring device acts upon the screw in a direction imparting to the spring device a tendency to move the screw axially in a direction tending to tighten the hose clamp. The proposed spring device consists of a helically wound spring wire threaded onto the screw, which is unprotected and produces a limited spring force. A stronger spring action and higher protection of the spring device are achieved in accordance with the invention by designing the spring device as a spring band (4) constituting a compression spring, which is situated within the screw housing (3) between the said other end wall (9) of the screw housing and the end (14) of the worm screw.
(FR)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.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)