Barrier means
First Claim
Patent Images
1. A barrier means, the barrier means comprising:
- a self-releasing and/or self-locking mechanism;
a plurality of telescopically, rotationally connected frame portions, at least one of the frame portions being capable of relative movement to allow expansion and/or contraction of the length of the connected frame portions, at least one frame portion having a plurality of spaced apart apertures and a diameter being smaller than a diameter of the other frame portions; and
the locking mechanism allows the plurality of frame portions to be locked together, the locking mechanism being movable between a locked position and an unlocked position by the relative movement of the at least one of the plurality of frame portions only, without direct manual interaction with the locking mechanism, the locking mechanism being located on one of the plurality of frame portions having an outer telescopic member and having a locking bar pivotably mounted on an outer frame portion, the locking bar having a first and a second end, the first end having a narrowing tapered portion for engagement with and disengagement from one of the plurality of spaced apart apertures when the frame portions are moved together in a first direction to form the locked position of the locking mechanism but preferentially disengages from the aperture when the frame portions are moved apart in a second direction, or on rotation of the frame portions to form the unlocked position of the locking mechanism.
0 Assignments
0 Petitions
Accused Products
Abstract
Barrier means are provided having a frame including a plurality of frame members, movable between a first substantially erect condition and a second substantially folded condition. At least one of the frame members including two or more telescopically mounted portions capable of relative movement to allow expansion and/or contraction of the length of the frame member. Locking means are associated with one or more of said frame portions to allow the portion or portions to be locked at a required length. The locking means are movable between the locked and/or unlocked position by relative movement of the frame portion or portions with which the locking means are associated.
-
Citations
13 Claims
-
1. A barrier means, the barrier means comprising:
-
a self-releasing and/or self-locking mechanism; a plurality of telescopically, rotationally connected frame portions, at least one of the frame portions being capable of relative movement to allow expansion and/or contraction of the length of the connected frame portions, at least one frame portion having a plurality of spaced apart apertures and a diameter being smaller than a diameter of the other frame portions; and the locking mechanism allows the plurality of frame portions to be locked together, the locking mechanism being movable between a locked position and an unlocked position by the relative movement of the at least one of the plurality of frame portions only, without direct manual interaction with the locking mechanism, the locking mechanism being located on one of the plurality of frame portions having an outer telescopic member and having a locking bar pivotably mounted on an outer frame portion, the locking bar having a first and a second end, the first end having a narrowing tapered portion for engagement with and disengagement from one of the plurality of spaced apart apertures when the frame portions are moved together in a first direction to form the locked position of the locking mechanism but preferentially disengages from the aperture when the frame portions are moved apart in a second direction, or on rotation of the frame portions to form the unlocked position of the locking mechanism. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. A barrier means, the barrier means comprising:
-
a self-releasing and/or self-locking mechanism; a plurality of telescopically, rotationally connected frame portions, at least one of the frame portions being capable of relative movement to allow expansion and/or contraction of the length of the connected frame portions, at least one frame portion having a plurality of spaced apart apertures and a diameter being smaller than a diameter of the other frame portions; the locking mechanism allows the plurality of frame portions to be locked together, the locking mechanism being movable between a locked position and an unlocked position by relative movement of at least one of the plurality of frame portions only, without direct manual interaction with the locking means, the locking mechanism being located on one of the plurality of frame portions having an outer telescopic member and having a locking bar pivotably mounted on the outer frame portion, the locking bar having a first and a second end, the first end having a narrowing tapered portion for engagement with and disengagement from one of the plurality of spaced apart apertures when the frame portions are moved together in a first direction but preferentially disengages from the aperture when the frame portions are moved apart in a second direction or on rotation of the frame portions to form the unlocked position of the locking mechanism; and wherein the tapered portion includes a substantially convexed curvature on an upper surface toward the apertures and/or recesses located on the other frame portion to allow engagement with the aperture and/or recess when the frame portions are moved together or in a first direction, and a lower surface of the engaging tapered portion of the locking bar having an angled or concave curvature to allow release of or prevent engagement of the portion in an aperture and/or recess when the frame portions are moved apart or moved in a second direction.
-
Specification