A strap button for attaching a supporting strap to a musical instrument is disclosed. The strap button includes an inner flange, a lug, a retaining flange, and an outer flange, with the inner flange configured to directly or indirectly contact the musical instrument. The lug is adjacent to the inner flange on one end, and the retaining flange and the outer flange on the other end. The lug is configured to support a hole of a supporting strap between the outer flange and the musical instrument. The retaining flange serves as a barrier to the supporting strap from slipping off the lug.

Provided is a snap button in which a swaged portion of a to-be-swaged pin is not visible from users. The snap button comprises a snap button body and a cap to be connected to the snap button body with a cloth interposed between them. The snap button body includes a base; a pin to be swaged, which protrudes from an inner surface of the base, the inner surface being placed to face the cloth; and an engaging portion provided on an outer surface opposite to the inner surface of the base. The cap comprises a cap body including a cap base; and a metal eyelet attached to an inner surface of the cap base, the inner surface being placed to face the cloth. The eyelet comprises a cylindrical portion for receiving the pin which has pierced the cloth and swaging the pin on the inner surface of the cap base.

A strap button for attaching a supporting strap to a musical instrument is disclosed. The strap button includes an inner flange, a lug, a retaining flange, and an outer flange, with the inner flange configured to directly or indirectly contact the musical instrument. The lug is adjacent to the inner flange on one end, and the retaining flange and the outer flange on the other end. The lug is configured to support a hole of a supporting strap between the outer flange and the musical instrument. The retaining flange serves as a barrier to the supporting strap from slipping off the lug.

A snap fastener system includes a conductive first snap fastener portion in electrical and physical contact with a first electronic component, a second snap fastener portion, and a snap ring including tines mated to one of the first and/or second snap fastener portions and including one or more conductive insulation displacement tines which cut through the insulation covering a wire to be electrically coupled to the first electronic component.

Techniques for a snap receiver are provided. In an example, a snap receiver can include a snap receiver base, and a lock ring. The snap receiver base can include a first opening in a first major surface, the first opening configured to first receive a snap post, and a plurality of lock legs extending from a second major surface. The lock ring can include a plurality of irregular slots, configured to secure the snap receiver to a fabric. A distal end of each lock leg can be configured to pass through the fabric and through a first end of a respective slot of the plurality of irregular slots. A first rotation of the lock ring with respect to the snap receiver base can lock a distal end of each of the lock legs within a second end of the respective slot of the plurality of irregular slots.

Techniques for a snap receiver are provided. In an example, a snap receiver can include a snap receiver base, and a lock ring. The snap receiver base can include a first opening in a first major surface, the first opening configured to first receive a snap post, and a plurality of lock legs extending from a second major surface. The lock ring can include a plurality of irregular slots, configured to secure the snap receiver to a fabric. A distal end of each lock leg can be configured to pass through the fabric and through a first end of a respective slot of the plurality of irregular slots. A first rotation of the lock ring with respect to the snap receiver base can lock a distal end of each of the lock legs within a second end of the respective slot of the plurality of irregular slots.

A fastening device and a fastening system including two fastening devices. The fastening device includes a first part having a first engaging side and a second part having a second engaging side, and at least two sets of individual engaging members configured to engage each other. Each set of engaging members includes a hook member and a locking member. The hook member protrudes from the first engaging side and has an engagement side from which a hook protrudes. The locking member is pivotably connected to the second part and extends into a recess in the second engaging side. The recess is adapted to receive the hook member for engagement with the locking member, and the locking member is configured to pivot towards the hook member when the hook member is in engagement with the locking member and a force is applied from the hook member on the locking member.

A snap button can include a snap button body and a fastener connected to the snap button body with a cloth interposed between them, wherein the snap button body includes a button member including a base; and a metal eyelet attached to an inner surface of the base, the inner surface being placed to face the cloth, wherein the button member includes an engaging portion provided on an outer surface opposite to the inner surface of the base, wherein the fastener includes a fastener base and a pin to be swaged, which protrudes from an inner surface of the fastener base, the inner surface being placed to face the cloth, and wherein the eyelet includes a cylindrical portion receiving the pin, the cloth being pierced by the pin, and the pin being swaged on the inner surface of the base of the button member.

A fastener element used to couple one or more items together, including layers of fabrics or other materials. The fastener element includes a top element having a central opening with a closed bottom surface adjoining a ring. On an underside of the ring is a protruding, piercing element that. The fastener element allows for more than two layers to be fastened together in a snap system and for a plurality of layers to be joined together. The fastener element can allow multiple layers to be joined together by coupling a first socket of a snap system to the top element and another socket to an underside of the ring and to the protruding piercing element. The fastener element can be used for multiple applications to secure more than one layer of fabric or another material together.

A snap button includes a female snap body and a socket ring. The female snap body includes a bottom portion and a side wall rising from a peripheral edge of the bottom portion, the side wall provided with a holding portion for holding the socket ring. The socket ring includes a flange portion arranged radially outward and held by the holding portion and an engaging portion arranged radially inside the flange portion. The engaging portion protrudes downwardly toward the bottom portion side of the female snap body and below the flange portion, in the axial direction of the socket ring. An inner diameter of the socket ring may be gradually increased from an intermediate point in the axial direction of the engaging portion to one end and other end in the axial direction of the engaging portion. The engaging portion of the socket ring may be provided with a plurality of slits along the radial direction in the circumferential direction.