A fastener for fastening a first element to a second element comprising: a first part; a second part fastenable to the first part via a first fastening mechanism; and a third part fastenable to the second part via a second fastening mechanism. The third part comprises at least one protruding member for inserting thereof to the second element for fastening the second element between the second and third parts. The first fastening mechanism is configured such that to open the fastening of the first part to the second part an external tool such as a key or a magnet should be applied.

A detachable audio system for a head-mounted display is disclosed. The detachable audio system includes a speaker, an arm coupled to the speaker, a strap connector including a first side coupled to the arm and a second side opposite to the first side, and a coupling subsystem coupled to the second side of the strap connector and to couple to a strap for the head-mounted display. The coupling subsystem includes a base, a plurality of posts, and a spring. The base includes a first side engaged with the second side of the strap connector and a second side opposite to the first side. The plurality of posts extends from the second side of the base to couple to the strap. The spring contacts the second side of the base and is to detach the detachable audio system from the strap when the plurality of posts decouple from the strap.

An automatically actuating strap lock mechanism for use on instruments is disclosed. The multiple embodiments disclosed herein use an automatically actuating retaining mechanism to allow a user to attach the end of a strap to a strap button on an instrument without having to manipulate a lever or knob. The retaining mechanism is capable of being moved into the open position using the head of a strap button, allowing a user to slide the mechanism over a strap button. Once a strap button is seated in the strap lock mechanism, the retaining mechanism is automatically released, locking the strap button in place.

A snap-type fastener arrangement includes various elements. For example, the snap-type fastener arrangement includes a socket component and a stud component. The stud component is insertable into the socket component to releasably couple two items together. The snap-type fastener includes a construction having a relatively low profile that does not extensively protrude outward from the underlying article to which the snap-type fastener is attached. The socket component includes a portion for securing the socket component to a textile layer and a central portion that extends through the textile layer. The stud component may be inserted into a socket aperture in the central portion of the socket in order to mate the two components.

A press stud comprises a male element and a female element, which show, when coupled, a capacity for mutual transverse displacement with respect to the coupling direction to move, when subjected to tension acting in a substantially transverse direction with respect to the coupling direction, from an uncouplable position to a locked position. An elastic centring member exerts an elastic force on the male element and/or on the female element to keep them in the uncouplable position in the absence of tension acting in a substantially transverse direction with respect to the coupling direction.

A method is provided for producing a component connection, which has a first component and a male connecting element with at least one sphere or at least one spherical element. The at least one ball or the at least one spherical element is pressed into the material of the first component in such a way that a positive-locking connection results between the first component and the connecting element, by which positive-locking connection the connecting element is connected to the first component in a translationally fixed and rotationally fixed manner.

A fastener for fastening a first element to a second element comprising: a first part; a second part fastenable to the first part via a first fastening mechanism; and a third part fastenable to the second part via a second fastening mechanism. The third part comprises at least one protruding member for inserting thereof to the second element for fastening the second element between the second and third parts. The first fastening mechanism is configured such that to open the fastening of the first part to the second part an external tool such as a key or a magnet should be applied.

A snap thru grid fastener system for mesh fabrics wherein a snap thru grid component goes through the openings of the mesh fabric and is affixed to the indentations of the receiving component. The snap thru grid fastener system allows for the user to accessorize mesh fabrics without sewing the patch directly to the fabric or relying on single pin systems.

A snap thru grid fastener system for mesh fabrics wherein a snap thru grid component goes through the openings of the mesh fabric and is affixed to the indentations of the receiving component. The snap thru grid fastener system allows for the user to accessorize mesh fabrics without sewing the patch directly to the fabric or relying on single pin systems.