公开(公告)号：US11415158B2

公开(公告)日：2022-08-16

申请号：US16754296

申请日：2017-10-18

Applicant: HEICO BEFESTIGUNGSTECHNIK GMBH

Inventor： Norbert Schneider

IPC: F16B3/06 ,  F16B31/04 ,  F16B19/02

Abstract: An expansion bolt comprises a bolt having an end-face anchoring means for the tension-resistant anchoring of the bolt on or in a first assembly part, which bolt has a truncated-cone-shaped cone section and a bolt threaded section in its end section opposite to the anchoring means with a nut screwed thereon, an expansion sleeve having a cylindrical lateral surface and an inner cone contour interacting with the cone section of the bolt, and a clamping device supported on a second assembly part for widening the expansion sleeve and applying an axial clamping force to the assembly parts to be connected together. The cone section of the bolt is tapered in the direction toward its anchoring means and the inner cone contour of the expansion sleeve is tapered in the same direction. The expansion sleeve bears a clamping flange protruding outward in the radial direction on its end opposite to the inner cone contour. The clamping device comprises a clamping ring having an axial passage opening. The expansion sleeve engages through this passage opening, permitting an adjustability of the expansion sleeve in relation to the clamping ring in the axial direction, and protrudes with its clamping flange beyond a peripheral region of the clamping device enclosing the passage opening. The clamping ring also comprises multiple pressure bolts arranged circumferentially distributed, which mesh with their thread in internally threaded holes extending through the clamping ring in the axial direction and act with their bases indirectly or directly against the second assembly part to widen the expansion sleeve and apply an axial clamping force to the assembly parts. Furthermore, a connection assembly having such an expansion bolt is described.

公开(公告)号：US20240263659A1

公开(公告)日：2024-08-08

申请号：US18433669

申请日：2024-02-06

Applicant: Heico Befestigungstechnik GmbH

Inventor： Norbert Schneider ,  Jens Kothenschulte

IPC: F16B13/06 ,  F16B5/02

CPC classification number: F16B13/065 ,  F16B5/0258

Abstract: A releasable expansion bolt having an expansion sleeve with a first end, a second end, a cylindrical outer lateral surface and, on the inside, an inner cone section having a cross-sectional area that tapers towards the second end; a cone bolt with a cone section which interacts with the inner cone section for expanding the expansion sleeve as a result of an axial relative movement of the expansion sleeve and the cone bolt; and a tensioning device connected to the first end section of the expansion sleeve for adjusting the cone bolt in the axial direction relative to the expansion sleeve. The tensioning device comprises a pressure bolt held in a form-fitting manner in the axial direction in the area of the first end section of the expansion sleeve and adjustable in the axial direction relative to the expansion sleeve. An outer end of the pressure bolt has a foot opposite the driving contour that acts on the cone bolt when tightening the pressure bolt to expand the expansion sleeve. The end surface of the cone bolt facing the tensioning device has at least one connection contour for connecting, in a form-fitting manner in the axial direction, a connection part of a release tool for releasing the expansion bolt. Also described is a connection arrangement and a method for forming such a connection arrangement.