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DEVICE FOR ASSEMBLING TUBULAR MEMBERS

  • US 3,695,649 A
  • Filed: 06/05/1970
  • Issued: 10/03/1972
  • Est. Priority Date: 06/19/1969
  • Status: Expired due to Term
First Claim
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1. An assembling device for securing a tubular member to any other member, comprising a pair of wedging members adapted to be engaged into said tubular member and having externally the same shape as the inner section of said tubular member, said wedging members consisting of a pair of complementary half-shells forming between them a cavity of which the internal wall is inclined, a first expansion core disposed into said cavity and of which the external wall has the same inclination as the internal wall of said cavity, an axial hole formed into said core, a control screw engaged in said hole and adapted to cause an axial movement of said first expansion core in said cavity for obtaining the expansion of said complementary half-shells, a second expansion core os similar configuration to said first expansion core, but disposed opposite therefrom and carried by a junction member adapted to interconnect a number of other section members, said complementary half-shells comprising at each end a cavity adapted to receive respectively said first expansion core and said second expansion core and said control screw operatively engaging said second expansion core for causing relative movement of said first and second expansion cores and obtaining expansion of said wedging members, said junction member has substantially the shape of a cage of which the vertical faces comprise apertures corresponding in number to the section members to be secured with it, and said device further comprises an end piece fitted to the end of each section member and which is adapted to be engaged into an aperture of said junction member, at least one sliding key being provided for locking said end pieces into said junction member.

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