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

• Current Assignee: Rene Georges Laverone
• Original Assignee: Rene Georges Laverone
• Inventors: Laverone, Rene Georges
• Primary Examiner(s): Williamowsky, David J.
• Assistant Examiner(s): Shedd, Wayne L.
• Application Number:
  US05/043,804
• Time in Patent Office: 851 Days
• Field of Search: 287/126,54A,54C,54E,23,56 16/30
• US Class Current: 403/231
• CPC Class Codes: F16B 12/40 Joints for furniture tubing
• CPC Class Codes: F16B 12/44 Leg joints; Corner joints
• CPC Class Codes: F16B 2200/20 Connections with hook-like parts gripping behind a blind side of an element to be connected
• CPC Class Codes: F16B 2200/65 Miter joints
• CPC Class Codes: F16B 7/04 Clamping or clipping connections friction-grip releasable fastenings in general F16B2/00
• CPC Class Codes: F16B 7/0446 for tubes using the innerside thereof F16B7/025 takes precedence
• CPC Class Codes: F16B 9/054 the intermediate member being threaded
• CPC Class Codes: F16B 9/056 the intermediate member extending through the flat surface; the rod or tubular part extending through the flat surface
• CPC Class Codes: Y10T 403/344 Plural pairs of axially aligned members
• CPC Class Codes: Y10T 403/345 Coplanar
• CPC Class Codes: Y10T 403/4602 Corner joint
• CPC Class Codes: Y10T 403/7003 One rod is encompassed by the other
• CPC Class Codes: Y10T 403/7069 Axially oriented
• CPC Class Codes: Y10T 403/76 having a cam, wedge, or tapered portion

Abstract

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 consist of a pair of complementary half-shells forming between them a cavity of which the internal wall is inclined. An expansion core is disposed into said cavity and of its external wall have the same inclination as the internal wall of said cavity. A control screw is engaged in an axial hole formed into said core, and said screw is adapted to caUse an axial movement of said expansion core in said cavity for obtaining the expansion of said complementary half-shells.

Claims

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.

2. An assembling device according to claim 1, in which said end pieces are engagable into the corresponding end of said sections members, and said end pieces are provided with resilient blades having slightly curved projecting ends for releasably connecting each end piece in the corresponding section member.

3. An assEmbling device according to claim 1, in which said junction member comprises an opening on its side opposite to that carrying said second expansion core provided on said said junction member, said opening being adapted to receive the sliding key adapted to lock the end pieces into said junction member.

4. An assembling device according to claim 3, further comprising an insert adapted to be engaged into the opening provided in said junction member, said insert constituting a third expansion core similar to that carried by said junction member, and said third expansion core being connected through a screw to a fourth expansion core positioned beyond a pair of additional complementary wedging half-shells adapted to be engaged into a second tubular member to be secured operatively on said junction member.