Patent ID: 6851774
Filing Date: 2005-02-08
Classification: A47B

Abstract:
1. A track device comprising: a first track; a second track slidably received in the first track; a stop member fixed on the first track and including two stops; a limiting member pivotally mounted to the second track and including two cams for respectively and releasably engaging with the stops of the stop member, a safety element being provided between the cams of the limiting member; a connecting rod mounted on the second track, the connecting rod being operatively connected to the limiting member for switching the limiting member between an unlatching position and a latching position; wherein when the second track is located in an extended position relative to the first track, the cams of the limiting member are respectively engaged with the stops of the stop member for preventing the second track from being moved relative to the first track in either direction; wherein when a user manually operates the connecting rod to move the limiting member from the latching position to the unlatching position, the safety element of the limiting member comes in contact with one of the stops of the stop member when the second track is moved from the extended position into the first track and when the connecting rod is pulled; and wherein the limiting member is a substantially rhombic plate having two acute-angled corners and two obtuse-angled corners, the cams of the limiting member being respectively formed on the acute-angled corners, and the safety element being formed on one of the obtuse-angled corners.