| 摘要 |
A retainer apparatus is used to releasably retain a socket wrench member on the plug of the driving head of a rotary lever. The retainer apparatus includes a connecting rod, a control rod and a sleeving ring. The connecting rod has an bore formed in an end surface thereof, in which the control rod is disposed. A retaining pin is passed through the position limiting hole of the connecting rod to interconnect the sleeving ring and the control rod, so that actuation of the sleeving ring can rotate the control rod relative to the connecting rod. The control rod has a circumferential extending retaining groove which is gradually deepened from a narrow end portion to a deep end portion. A retaining ball is positioned in the narrow end portion of the retaining groove and extends through a retaining hole of the connecting rod and into one of four retaining holes of the socket wrench member, so as to retain the socket wrench member on the connecting rod. When the sleeving ring is rotated an angle of 90 degrees so as to move the retaining ball to the deep end portion of the retaining groove, the socket wrench member can be removed from the connecting rod.
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