Patent ID: 7888572

Claim:
A musical instrument strap lock apparatus for attaching a strap to a strap button on a musical instrument, comprising: a lock body comprising at least two connected side walls, wherein the connected side walls define a cavity, wherein the cavity has an insertion aperture and a side opening; a resilient retainer latch integral to the lock body, wherein the resilient retainer latch comprises at least one securement edge, wherein the at least one securement edge defines a securement area, wherein the securement area has a resilient latch opening; and a strap fixing apparatus connected with the lock body, wherein the strap fixing apparatus detachably connects a strap to the lock body, wherein the strap is attached with a musical instrument by first receiving a strap button in the insertion aperture and then securely receiving the strap button in the cavity and the securement area by sliding the strap button through the side opening and the resilient latch opening in a direction radial to the strap button axis; wherein the at least two connected side walls comprise a first sliding edge and a second sliding edge, wherein each sliding edge begins at the insertion aperture, further wherein each sliding edge is opposite of each other and a distance between the first sliding edge and the second sliding edge at the insertion aperture defines a cavity entrance width; yet further wherein the resilient retainer latch comprises a first resilient arcuate arm and a second resilient arcuate arm, each arcuate arm having an arm end protruding partially over one of the sliding edges, wherein the arcuate arm ends define a width of the resilient latch opening, and further wherein the resilient latch opening width is less than the cavity entrance width.