Blind rivet-type clamping fastener
AssigneeSFS Industrie Holding AG
InventorsErich Palm, Daniel Gasser
Life of this patent
Estimating the term…
Abstract
A blind rivet-type clamping fastener includes a deformable sleeve, a drift section insertable into or connectable to the sleeve, and a drilling section. The latter is held on either the sleeve or a drift section so that it can be axially moved towards the free end of the fastener or removed therefrom upon exertion of an axial force onto the drilling section during the setting of the clamping fastener.
Claims11
In a blind rivet-type clamping fastener comprising a deformable sleeve part (2), a drift part (4) which can be inserted into the sleeve part (2) and is connected to the sleeve (5), the improvement comprising the drilling part (5) being configured as a platelet-shaped part and being held on at least one of said sleeve part and said drift part so as to enable said drilling part to be moved or removed toward a free end of the clamping fastener (1) by exerting an axial force (6) on the drilling part during the setting of said clamping fastener, said drift part including a shaft (13) and a head stud (14) having an end section (17) adjoining and facing said drilling part, said head stud having a diameter greater than a diameter of said shaft.
A blind-rivet-like clamp fastener, comprising a deformable sleeve part (2), a drift part (4) which can be inserted in the sleeve part (2) and which is effectively connected with the sleeve part (2) at least during the setting process, and a drilling part (5), which is held on at least one of the sleeve part and the drift part so that it can be shifted or stripped off by action of a force, which can be triggered by a relative motion between the sleeve part (2) and the drift part (4) produced by the setting process of the clamp fastener (1), the drilling part (5) being held non-positively as viewed in an axial direction of the fastener and positively as viewed in a rotational direction of the fastener and having, at a side thereof opposite to a drilling tip (11), an approximately radially aligned stop surface (12) which protrudes into a range of axial movement of one of the drift part (4) and the sleeve part (2), the drift part (4) having a shaft (13) and a head projection (14) having an adjoining section (17) of a larger diameter than said shaft, the drilling part (5) being configured as a platelet-shaped stamped part having two side edges protruding radially over the adjoining section (17) of the head projection (14) of the drift part (4).
Dependencies are inferred from the claim text.