摘要:
The invention relates to a securing element (10, 30, 40) comprising a threaded region, wherein a securing rotational direction (B) and an axial clamping direction (K) are defined by the thread design. The securing element (10, 30, 40) has a head (12, 32, 48) with a head lower face (44) which faces the clamping direction (K) and via which a force-fitting connection with a component can be produced. The head (12, 32, 48) is designed such that the head lower face (44) has an edge region (16, 42) at a radial distance from the head center, and the contour of the head lower face (44) runs opposite the clamping direction (K) in the direction of the head center starting from the edge region (16, 42), whereby a spring effect can be produced. The edge region (16, 42) has a changing circumferential level in the axial direction. The invention is characterized in that opposite the securing rotational direction (B), the circumferential level rises at a rising angle (α) of maximally 15° in the clamping direction (K) over a central angle (ß) of at least 65°.
摘要:
An outrigger having a locking mechanism includes an elongated member having a distal end, a proximal end, and a threaded portion proximate the distal end; a moveable member operably associated with the elongated member; and a slide lock operably associated with the moveable member. The thread portion may have at least one flat side and the slide lock may have at least one flat portion. The at least one flat side and the at least one flat portion may engage such that the slide lock translates along, but not rotate about, the threaded portion. The slide lock may engage a surface of the clamp. The moveable member may move the slide lock towards the clamp such that the engagement portion engages the surface of the clamp. The connection between the engagement portion and the surface of the clamp may prevent the slide lock from rotating relative to the clamp.
摘要:
An attachment assembly includes an elongate channel element and a male fastening element including a shank to fasten the channel element to another structural element. The elongate channel element has a substantially flat bottom, sidewalls extending from the bottom substantially at right angles and an upper side opposite the bottom. The upper side of the channel element includes flanges which extend from the respective sidewalls towards each other and delimit between them a longitudinal slot extending over the length of the channel element. The bottom has an aperture formed in it for passing through the shank of the male fastening element. The male fastening element has a head that has a circular groove in the side where the shank is located. The groove in the head is engageable with a collar surrounding the aperture so as to mutually lock the head and the bottom in position at the aperture.
摘要:
A fastener assembly (100) comprising a threaded component (105) and a washer (120), wherein the bearing surfaces (113,128) between the threaded component and washer each include helically inclined surface segments such that the clamp load exerted on the washer by the threaded component alternates between being increased and being decreased during rotation of the nut in a single direction.
摘要:
The present invention is intended to provide a novel loosening prevention threaded fastener in which loosening of a fastening portion can be prevented in a reliable manner, without using an adhesive agent, and besides, the strength of fastening can be made large, and which can still be used in a repeated manner. The present invention has a construction in which a clearance side protrusion portion protruding radially outwardly toward a clearance flank surface of a female screw thread is formed on a clearance flank surface of a male screw thread, and the clearance side protrusion portion is constructed such that a tip end portion thereof interferes with the clearance flank surface of the female screw thread, in a state where a pressure flank surface of the male screw thread is in contact with a clearance flank surface of the female screw thread, wherein at the time of screw fastening, the crest end portion of the clearance side protrusion portion is pushed to the pressure flank surface of the female screw thread so that it is deformed in a deflective manner to apply a predetermined contact pressure to a contact surface due to its elastic restoring force, thus providing resistance against a loosening direction.
摘要:
A clinch nut for attachment to a plastically deformable metal substrate is provided. The clinch nut comprises a body portion with a central axis and a punch portion extending from the body portion and coaxial with the central axis. The body portion includes an annular-shaped surface encircling the central punch portion. The annular-shaped surface includes a plurality of spaced apart lugs encircling the central punch portion. The plurality of lugs each includes a contact surface with a recessed portion where the contact surface engages the metal substrate. A first portion of the contact surface is biased outwards from the central axis upon insertion in the metal substrate to form at least one lug flare during attachment of the nut to the metal substrate. A portion of the metal substrate is entrapped between the at least one lug flare and the body portion.