F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
24/31.1
F16L 33/08 (2006.01)
Patent
CA 2007893
WORM DRIVE CLAMP WITH AUTOMATIC SPRING LEVER ACTION ABSTRACT A worm drive clamp comprising a flexible metal band having a housing secured to a connecting portion thereof. A worm screw, having a spiral thread, is supported for axial rotation in the housing adjacent a side of the band connecting portion. The worm screw has its rotational axis co-extending with the longitudinal axis of the metal band. A resilient leaf spring is secured to the side of the band adjacent the worm screw for biasing the free end portion of the band positioned thereover against the screw when the band is tightened about an object. The free end portion of the band is provided with spaced-apart screw thread engaging teeth or slots along a length thereof to engage with the spiral thread of the worm screw. The housing is also provided with an inlet and an oulet port for the passage of the free end of the band through the housing. The leaf spring has a flexible connection to permit the band to be slidingly displaced adjacent the worm screw without arresting threaded engagement between the spiral thread of the worm screw and the thread engaging teeth provided in the free end portion of the band. When the band is tightened about the object the spring urges the free end portion of the band to enter into threaded engagement with the worm screw.
Ouimet Serge
Swabey Ogilvy Renault
LandOfFree
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