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CLAMP DEVICE

  • US 20150204471A1
  • Filed: 07/11/2013
  • Published: 07/23/2015
  • Est. Priority Date: 07/25/2012
  • Status: Active Grant
First Claim
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1. A clamp device in which a main clamp body comprises a pair of tightening grooves each being delimited by a pair of groove-delimiting wall sections;

  • the tightening grooves each having a U- or V-shaped transverse cross-section; and

    first and second lobe parts disposed in the vicinity of end portions of the tightening grooves;

    the main clamp body presenting a ring shape when a bolt and a nut are mounted in position on the lobe parts disposed facing each other;

    the bolt and the nut when screw-tightened relative to each other developing a force of fastening together at least two objects placed within the tightening grooves;

    wherein,each of the first and second lobe parts comprises;

    a pair of sidewall sections respectively contiguous to the pair groove-delimiting wall sections that delimit the tightening groove;

    a curved outer end wall section interconnecting the pair of sidewall sections at an outer end of each lobe part; and

    a seat surface wall section contiguous to the pair of sidewall sections and to the outer end wall section;

    the seat surface wall section providing a seat surface for the bolt or the nut;

    an arcuately shaped fulcrum part being formed on the curved outer end wall section of each lobe part so as to extend along a curving direction of the outer end wall section, andend portions reaching the side wall in the fulcrum part projecting from the side wall.

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