# US 2010/0166522 A1 · Mounting/assembly element for assembling workpieces, particularly overlapping plates and/or components > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2010/0166522 A1 - Document ID: US20100166522A1 - Status: Published application - Kind: A1 - Application number: 12/601,444 - Filed: 2008-05-22 - Published: 2010-07-01 - Earliest claimed: 2007-05-23 - Assignees: Hn3D Holding Aps - Inventors: Hans Nielsen - Web page: https://patentgrep.com/patent/US20100166522A1 ## CPC - F16B 19/1054: {the pull-mandrel or the like being frangible} - F16B 37/062: {by means of riveting} - F16B 5/02: by means of fastening members using screw-thread ({F16B5/0004 takes precedence}; construction of screw-threaded connections F16B25/00 - F16B39/00) - F16B 5/04: by means of riveting (rivets F16B19/04) - F16B: DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING (couplings for transmitting rotation F16D) ## Abstract A mounting/assembly element rivet bush having a deformable first end for insert through items to be connected and a second end for mounting a nut. A draw tool having a break zone is located in the first end of the rivet bush, and the second end of the rivet bush is provided with a non-cylindrical internal cross section which cooperates with an insertion tool, such as an Allen wrench. When the mounting/assembly element is held fast in the items to be connected, the part of the break zone of the draw tool for the deformation of the rivet bush is lying in the deformable first end of the rivet bush. A counter-hold for torsion forces which arise with the dismounting and remounting of the nut is produced with the insertion tool thereby achieving a considerably greater tightening effect and also ensuring that the mounting/assembly element can be reused. ## Claims ### Claim at position 1 1-10. (canceled) ### Claim 11 Mounting/assembly element for use in the assembling of items, comprising a rivet bush with a first end having a deformable zone for introduction through coinciding holes in the items and a second end having an external thread on which a cooperating nut is provided, and a draw-rod housed in the rivet bush, a first end of the draw-rod having a draw-head housed in the deformable zone, the draw-head having a larger diameter than the draw-rod and a break zone being formed between the draw-rod and the draw-head, and a second end of the draw-bar extending out of the second end of the rivet bush, drawing on the second end of the draw-bar being adapted to cause collapsing of the deformable zone, for fixing the rivet bush in the items being assembled, until a break occurs in the break zone, wherein the second end of the rivet bush has a non-cylindrical internal cross-section for receiving a tool, and wherein, in a dismounted state of the rivet bush, the break zone lies in the first end of the rivet bush. ### Claim 12 (depends on 11) Mounting/assembly element according to claim 11, wherein the internal non-cylindrical cross-section in the second end of the rivet bush is hexagonal. ### Claim 13 (depends on 11) Mounting/assembly element according to claim 11, wherein a free end of the draw-head has a pointed, conical section, and wherein, between the conical section and the break zone, a recess is provided against which the first end of the rivet bush is in contact. ### Claim 14 (depends on 13) Mounting/assembly element according to claim 13, wherein the draw-head has a second conical section between the recess and the break zone. ### Claim 15 (depends on 11) Mounting/assembly element according to claim 11, wherein an outside surface of the deformable zone is provided with a grooving. ### Claim 16 (depends on 15) Mounting/assembly element according to claim 15, wherein the grooving on the outside surface of the deformable zone is comprised of serrations. ### Claim 17 (depends on 16) Mounting/assembly element according to claim 16, wherein the grooving on the outside surface of the deformable zone is a zig-zag grooving. ### Claim 18 (depends on 15) Mounting/assembly element according to claim 15, wherein the grooving on the outside surface of the deformable zone is helical with the pitch oriented towards said thread on the second end of the rivet bush. ### Claim 19 (depends on 11) Mounting/assembly element according to claim 11, wherein the outside surface a portion of the draw-rod extending out of the second end of the rivet bush has a grooving or a corrugation. ### Claim 20 (depends on 11) Mounting/assembly element according to claim 11, wherein a surface of the nut facing towards the deformable zone of the rivet bush is corrugated or grooved. ### Claim 21 Mounting/assembly element for use in the assembling of items, comprising a rivet bush with a first end and a second end, where the first end has a deformable zone for introduction through coinciding holes in the items, and a draw-rod housed in the rivet bush, a first end of which has a draw-head with a larger diameter than the draw-rod and a break zone above the draw-head which is housed in the deformable zone of the rivet bush, and where the second end of the draw-bar extends up over the second end of the rivet bush, and where the second end of the rivet bush has an external thread on which a cooperating nut is provided, drawing on the second end of the draw-bar being adapted to cause collapsing of the deformable zone, for fixing the rivet bush in the items being assembled, until a break occurs in the break zone, wherein the second end of the rivet bush has a non-cylindrical internal cross-section, and wherein, in a mounted state of the rivet bush with the deformable zone collapsed, after breaking of the draw-rod, a remainder of the break zone lies in a lower half part of the second end of the rivet bush facing away from the draw-head. ### Claim 22 (depends on 21) Mounting/assembly element according to claim 21, wherein the internal non-cylindrical cross-section in the second end of the rivet bush is hexagonal. ### Claim 23 (depends on 21) Mounting/assembly element according to claim 21, wherein a free end of the draw-head has a pointed, conical section, and wherein, between the conical section and the break zone, a recess is provided against which the first end of the rivet bush is in contact. ### Claim 24 (depends on 23) Mounting/assembly element according to claim 23, wherein the draw-head has a second conical section between the recess and the break zone. ### Claim 25 (depends on 21) Mounting/assembly element according to claim 21, wherein an outside surface of the deformable zone is provided with a grooving. ### Claim 26 (depends on 25) Mounting/assembly element according to claim 25, wherein the grooving on the outside surface of the deformable zone is comprised of serrations. ### Claim 27 (depends on 26) Mounting/assembly element according to claim 26, wherein the grooving on the outside surface of the deformable zone is a zig-zag grooving. ### Claim 28 (depends on 25) Mounting/assembly element according to claim 25, wherein the grooving on the outside surface of the deformable zone is helical with the pitch oriented towards said thread on the second end of the rivet bush. ### Claim 29 (depends on 21) Mounting/assembly element according to claim 21, wherein the outside surface a portion of the draw-rod extending out of the second end of the rivet bush has a grooving or a corrugation. ### Claim 30 (depends on 21) Mounting/assembly element according to claim 21, wherein a surface of the nut facing towards the deformable zone of the rivet bush is corrugated or grooved.