초록

A joint and method for connecting elongated members end to end in which outer sleeves are anchored in blind holes extending in from each end face and a threaded rod is advanced into threaded nut receptacles affixed to the inside end of each sleeve to draw the end faces into abutment.

대표청구항 ▼

1. A joint between two penetrable elongated members in a position with an end surface of a first member abutting against an end surface of a second member comprising: a first sleeve anchored within a first blind hole extending in from said first member end surface by penetrating engagement with surr

1. A joint between two penetrable elongated members in a position with an end surface of a first member abutting against an end surface of a second member comprising: a first sleeve anchored within a first blind hole extending in from said first member end surface by penetrating engagement with surrounding portions of said first member defining said first hole;a second sleeve separate from said first sleeve fixedly secured in a second blind hole extending in from said second member end surface by penetrating engagement with surrounding portions of said second member defining said second hole, said sleeves overlapping with one sleeve having an end portion protruding from an associated member and slidably received within an inside diameter of the other sleeve with said surfaces of said members in said abutting position against each other;said first and second sleeves secured in their respective associated blind holes by penetrating spike features on said sleeves penetrating radially into said respective portions of said penetrable members defining said first and second blind holes;an internally threaded receptacle fixedly secured to an inmost end of each of said first and second sleeves; anda threaded rod extending through both of said sleeves and having opposite ends threaded into a respective one of said internally threaded receptacle fixed to an inner end of said first and second sleeves respectively, said rod rotated to an extent so that said end surfaces are drawn together and held in tight abutment with each other. 2. The joint according to claim 1 further including inner sleeves each slidably fit within an inside diameter of a respective one of said first and second sleeves to force out said spike features to penetrate into surrounding portions of said first and second members respectively. 3. The joint according to claim 2 wherein said threaded rod is secured to a carrier tube with opposite ends of said threaded rod protruding out from a respective opposite end of said carrier tube, said carrier tube having said opposite ends slidably fit within a respective one of said first and second inner sleeves, each end of said carrier tube substantially coextensively fit within said first and second inner sleeves with said protruding rod ends extending past said first and second inner sleeves respectively and threaded into a respective one of said threaded receptacles. 4. The joint according to claim 2 wherein each inner sleeve had a tapered end portion respectively engaging said spike features to cam the same out when said inner sleeves are forced into said first and second sleeves respectively. 5. The joint according to claim 2 wherein said members are constructed of wood to be easily penetrable by said spike features. 6. A method of joining one end of a first elongated penetrable member to an end of a second elongated penetrable member with respective end surfaces thereof in abutment, including forming a first blind hole extending into an end surface of said first penetrable member; inserting a first sleeve into said first hole and securing the same therein by attachment to surrounding penetrable portions of said first member defining said first hole;forming a second blind hole extending into an end surface of said second member;inserting a second sleeve separate from said first sleeve into said blind hole in said second member and securing the same therein by attachment to surrounding penetrable portions of said second member defining said second blind hole;inserting opposite respective ends of a threaded rod through a respective one of said first and second sleeves and threading the same into a respective internally threaded element fixed at the inside end of each of said sleeves so that said first and second members are drawn together by advancement of said threaded rod ends in said respective internally threaded elements sufficiently to establish a tight abutment of said end surfaces of said first and second elongated members said advancement of one of said threaded rod ends produced by rotation of one of said members. 7. The method according to claim 6 including securing said first and second sleeves to said first and second members respectively by forcing spike features formed on each of said sleeves out into said surrounding portions of said respective members defining said first and second blind holes. 8. The method according to claim 7 including forcing said spike features out by inserting an inner sleeve into an inside diameter of each of said first and second sleeves respectively to force spike features having portions disposed within each of said first and second sleeves out into said surrounding portions of a respective first and second members defining each of said blind holes. 9. The method according to claim 8 further including leaving said inner sleeves in place after forcing said spike features out. 10. The method according to claim 8 further including fixing said threaded rod within a carrier tube with opposite ends protruding out from opposite endwalls of said carrier tube and slidably interfitting said carrier tube with a respective inner sleeve.