Abstract: A safety pin for fastening accessories includes a base part having a body in a longitudinal direction; a pin fastening part which is coupled to one end of the base part, and to which at least one pin extended in the longitudinal direction of the base part is fastened; a pin coupling part which is coupled to the other end of the base part, and which has a pin coupling groove to which the pin of the pin fastening part is inserted and coupled; and a loop button part which is coupled to the pin fastening part.

Abstract: The present invention discloses a pivotal disc is pivotally coupled to a first brace and a second brace. The pivotal disc has a motion-limit member and a positioning member limiting the angle by which the second brace rotates with respect to the first brace with the pivotal disc being the axis and fixing the angle between the first and second braces. The present invention is characterized in that the motion-limit member uses a range-adjust member to push a slide block and determine the range that a block portion of the second brace is blocked by the slide block, and that the positioning member uses a switch knob actuates on end of a positioning rod to engage with or depart from a positioning notch on the pivotal disc, and that the pivotal disc has two limit elements to define the maximum movement range of the first brace and the second brace.

Abstract: The invention is directed to fastening components that may be adjusted or removed. In particular, the invention is directed to an apparatus including a head and an elongated member coupled to the head, the elongated member being configured to be removably received by a fastener.

Abstract: A knee brace is provided with push button actuatable stops, wherein the stops are biased outward into angular locking positions and inwardly directed pressure on the push buttons releases the stops and permits angular adjustment of the stops. A pair of catch plates with locking recesses facing inward, are provided, and outwardly biased locking pins engage the recesses in both catch plates. Each of the stop assemblies has an outwardly directed plate extending over the outer cover plate, and this plate is coupled to the physical stop member around the outer edge of the outer cover plate. The cover plate has angular indicia thereon, which may be viewed through windows in the outwardly extending plate portions of the stop assemblies.