Patent ID: 7467775

Claim:
A holding rack comprising a holding dock, a holding device and a fastening apparatus, the holding device having a holding bracket and a fastened member, the fastening apparatus having a collet and a sleeve, the collet being mounted onto the holding dock to hold the fastened member and being encased by the sleeve, wherein the collet has a bottom and a plurality of jutting plates secured to and extending longitudinally from the bottom in a protrusive manner, with the plurality of jutting plates having free ends opposite of and spaced from the bottom, with each jutting plate of the plurality of jutting plates having an outer surface including first and second portions, with the first portions of the outer surfaces of the plurality of jutting plates being extended outwards greater than the second portions of the outer surfaces of the plurality of jutting plates, and the sleeve has a tubular wall including a plurality of segments corresponding to the plurality of jutting plates, with each segment of the plurality of segments having an inner surface including first and second portions, with the first portions of the inner surfaces of the plurality of segments being extended inwards greater than the second portions of the inner surfaces of the plurality of segments, wherein the sleeve is rotatable about an axis relative to the collet in first and second rotating directions, with the first rotating direction being opposite of the second rotating direction, wherein the first portions of the plurality of segments are in contact with corresponding first portions of the plurality of jutting plates, with the collet having fastening and unfastening conditions, wherein the free ends bend toward the fastened member and the plurality of jutting plates are flexed inward towards the axis relative to the bottom when the collet is moved from the unfastening condition to the fastening condition, wherein the plurality of jutting plates between the free ends and the bottom conform to the fastened member relative to the bottom when the collet is moved from the unfastening condition to the fastening condition, wherein the collet is in the fastening condition when the collet is rotated in the first rotating direction, wherein the plurality of jutting plates and the bottom return to the unfastening condition when the collet is rotated in the second rotating direction, wherein the bottom engages the fastened member in both the fastening and unfastening conditions.