| 摘要 |
An adjusting and positioning structure for handle bars of trunks and the like including a securing tube assembly fixedly mounted on one side of a trunk. The securing tube assembly is hollow and is axially, pivotally provided with a handle bar in a slidable manner. At least one positioning pin urged against by an elastic element is fixedly provided in a radial parallel position of the handle bar. A control pin likewise subjected to the urging action of an elastic element is disposed below the positioning pin in a parallel position. One side of the control pin has a limiting portion capable of controlling axial displacement of the positioning pin. The securing tube assembly is radially provided with a plurality of axially spaced positioning portions corresponding respectively to the positioning pin and the control pin for receiving the positioning pin and the control pin inserted therein. The positioning portion corresponding to the control pin further extends downwardly to a certain axial distance to form an urging end at a bottom end thereof to urge against and control the axial displacement of the control pin when the latter displaces downwardly. By means of this arrangement, the handle bar can be pressed downwardly very quickly and then pulled axially upwardly very quickly to achieve adjustment and positioning of the handle bar.
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