Abstract: A telescopic support arm includes an outside arm and an inside arm which are designed to slide freely each other, the outside arm having a slot and an abutting piece inside thereof, and the inside arm having a slot and rotatable stopping piece inside thereof. The stopping piece is rotated by the engagement with the end portions of the slots and the abutting piece so as to be projected out of or sink into the slots, and by its rotation the outside arm and the inside arm are free to slide each other in both the extending and contracting directions. The stopping piece is provided with a buffer mechanism which comprises a holding piece of the stopping piece, a spring for pulling the holding piece in the contracting direction of the telescopic support arm, and a slot for slidably supporting a support shaft of the stopping piece. A rack with a tooth part is disposed in the outside arm along its longitudinal direction, while a locking piece with a pawl part is provided in the inside arm.

Abstract: A completely mechanical hold open device for a swingably mounted vehicle closure includes a pair of telescoping members pivotally connected to the closure and vehicle body and a releasable latching means for automatically holding the telescoping members in an extended position and hence the closure in its open position. The latching means is constructed such that it can be automatically released by merely exerting a downward force in excess of a predetermined magnitude on the closure to move the latter to its closed position.

Abstract: A completely mechanical hold open device for a swingably mounted vehicle closure includes a pair of telescoping members pivotally connected to the closure and vehicle body and a releasable latching means for automatically holding the telescoping members in an extended position and hence the closure in its open position. The latching means is constructed such that it can be automatically released by merely exerting a downward force in excess of a predetermined magnitude on the closure to move the latter to its closed position.