Movable or removable closures – With protective grille or safety guard – Removable
Patent
1997-05-15
1998-09-22
Stodola, Daniel P.
Movable or removable closures
With protective grille or safety guard
Removable
49463, 292 5, 292207, E06B 368, E05C 500, E05C 304
Patent
active
058096949
DESCRIPTION:
BRIEF SUMMARY
The prevent invention relates to safety barriers intended to be assembled into position so as to form a nursery gate. The position may be at the top or bottom of the stairs or in a doorway; alternatively it may be in a passageway.
EP-A 0 202 851 shows a well known construction comprising an outer frame including two vertical members, one for positioning against each side of the opening which is to be barred by the gate. These two members are connected together by a threshold strip at floor level. Hence the two vertical members and the threshold strip together form a generally "U" shaped structure and the gate per se is located within that, between the two vertical members. Each of the four corners of the construction that is to say the top and bottom of each of the two vertical members has screw adjusters and lock nuts or equivalents, which can be forced against the walls of the passage or like in which the construction is located, to wedge the outer frame in place. Each vertical member may comprise several tubes, wires or the like in the interests of structural rigidity and to avoid deflection when the screw adjusters are tightened. The gate itself is hinged to one of the vertical members at one lateral edge, and latched to the other vertical member at the opposite lateral edge.
The object of the present invention is to provide an improved construction.
Also according to the invention a nursery gate comprises a generally U-shaped structure including a pair of uprights provided with means for wedging the structure in an opening, and a threshold extending at floor level between the uprights, a gate hinged to one of the uprights, and latch means for releasably holding the gate in a position generally co-planar with the said structure, characterised in that the latch includes a jaw pivoted on the gate and engageable with the adjacent side member of the U-structure, a detent for holding the jaw in a non-pivoted position, spring means for retaining the detent in that position, and a release member (which may be the detent itself or a part connected to or associated therewith) for disengaging the detent from the jaw to allow the pivoting to take place.
Preferably the detent includes a nose engaged in a recess, and when disengaged and the jaw is turned, the detent will abut the jaw adjacent the detent recess so that if and when the jaw is pivoted in the reverse direction to re-align the detent and recess the spring will automatically engage the parts together.
Preferably the surface of the jaw which is contacted as mentioned has stop faces so as to limit the relative angular movement of the jaw and prevent it turning beyond the detent.
The detent nose and recess may be reversed so that the detent has a recess and the jaw has a nose instead of vice versa.
According to a feature of the invention, the detent is carried on a rod extending generally vertically in the gate between upper and lower frame members thereof and is fast with that rod, so that when the detent is displaced to free the jaw, the rod is moved in the same direction. The lower end of the rod may project below the gate and into a keeper in the threshold and this provides a second latching point at the bottom of the gate, whereas the jaw may be disposed generally at the top of the gate. When the detent is spring returned, the rod is spring returned. Hence, as the gate is swung shut, the jaw may engage the corresponding part of the U-shaped frame which causes the jaw to pivot about that engagement upon the gate and when it returns into line with the gate the spring will drive the detent into the engaged position and at the same time drive the rod so as to engage the lower end thereof with the keeper.
One embodiment of the invention using a U-frame is now more particularly described with reference to the accompanying drawings wherein:
FIG. 1 is an elevation showing a nursery gate installed in a passageway;
FIG. 2 is an exploded perspective view on an enlarged scale showing one of the adjusters used to wedge the U-shaped structure in the passageway;
FIG.
REFERENCES:
patent: 4611431 (1986-09-01), Lauro
patent: 4628635 (1986-12-01), Maillard
patent: 4685247 (1987-08-01), Alam
patent: 5103658 (1992-04-01), McQuade
patent: 5117585 (1992-06-01), Andrisin, III
patent: 5290077 (1994-03-01), Fleming
patent: 5396732 (1995-03-01), Andersen
Beldray Limited
Cohen Curtis
Stodola Daniel P.
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