Self-latching device for fastening a hinged closure member
First Claim
1. A self-latching device for fastening a hinged closure member, which device comprises:
- a frame arranged to be mounted on the hinged closure member;
a latch bolt mounted on said frame so as to be movable in a predetermined direction between a latching position and a retracted position, the latch bolt being arranged to be moved towards its retracted position by contact with a striker element when closing the closure member and the predetermined direction wherein the latch bolt is movable being a substantially horizontal direction when the latching device is mounted in an upright position on the closure member;
a latch bolt spring arranged to bias the latch bolt into the latching position; and
operator means mounted on top of the frame so as to be operable from both sides of the closure member and connected by means of a latch bolt operating mechanism to the latch bolt for moving the latch bolt from the latching to the retracted position, the latch bolt operating mechanism comprising;
an operator shaft which has a longitudinal axis, which is pivotally mounted around said longitudinal axis on said frame and which has an upper and a lower end, the operator means being connected to the upper end of the operator shaft to enable to rotate the operator shaft by means of the operator means; and
at least one cam element provided on the lower end of the operator shaft and arranged to move the latch bolt against the biasing force of the latch bolt spring to its retracted position upon rotation of the operator shaft in at least one rotational direction.
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0 Petitions
Accused Products
Abstract
The self-latching device comprises a frame (11, 17, 21, 24, 31) arranged to be mounted on the hinged closure member, in particular on a gate, a latch bolt (7) movably mounted on the frame in a horizontal direction between a latching position and a retracted position, a latch bolt spring (70) arranged to bias the latch bolt (7) into the latching position, and operator means (10) mounted on top of the frame so as to be operable from both sides of the closure member (2) and connected by means of a latch bolt operating mechanism to the latch bolt (7) for moving it from the latching to the retracted position. The self-latching device is especially suited for being mounted in a vertical tubular member of or fixed to a safety gate around an area which is dangerous for children, in particular around a swimming pool area.
18 Citations
22 Claims
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1. A self-latching device for fastening a hinged closure member, which device comprises:
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a frame arranged to be mounted on the hinged closure member; a latch bolt mounted on said frame so as to be movable in a predetermined direction between a latching position and a retracted position, the latch bolt being arranged to be moved towards its retracted position by contact with a striker element when closing the closure member and the predetermined direction wherein the latch bolt is movable being a substantially horizontal direction when the latching device is mounted in an upright position on the closure member; a latch bolt spring arranged to bias the latch bolt into the latching position; and operator means mounted on top of the frame so as to be operable from both sides of the closure member and connected by means of a latch bolt operating mechanism to the latch bolt for moving the latch bolt from the latching to the retracted position, the latch bolt operating mechanism comprising; an operator shaft which has a longitudinal axis, which is pivotally mounted around said longitudinal axis on said frame and which has an upper and a lower end, the operator means being connected to the upper end of the operator shaft to enable to rotate the operator shaft by means of the operator means; and at least one cam element provided on the lower end of the operator shaft and arranged to move the latch bolt against the biasing force of the latch bolt spring to its retracted position upon rotation of the operator shaft in at least one rotational direction. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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2. A self-latching device for fastening a hinged closure member, which device comprises:
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a frame arranged to be mounted on the hinged closure member; a latch bolt mounted on said frame so as to be movable in a predetermined direction between a latching position and a retracted position, the latch bolt being arranged to be moved towards its retracted position by contact with a striker element when closing the closure member and the predetermined direction wherein the latch bolt is movable being a substantially horizontal direction when the latching device is mounted in an upright position on the closure member; a latch bolt spring arranged to bias the latch bolt into the latching position; and operator means mounted on top of the frame so as to be operable from both sides of the closure member and connected by means of a latch bolt operating mechanism to the latch bolt for moving the latch bolt from the latching to the retracted position, wherein when the latch bolt is in its latching position, the latch bolt operating mechanism is in a rest position and the latch bolt is mounted on the frame to be movable against the biasing force of the latch bolt spring to its retracted position whilst the latch bolt operating mechanism remains in its rest position. - View Dependent Claims (3)
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4. A self-latching device for fastening a hinged closure member, which device comprises:
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a frame arranged to be mounted on the hinged closure member; a latch bolt mounted on said frame so as to be movable in a predetermined direction between a latching position and a retracted position, the latch bolt being arranged to be moved towards its retracted position by contact with a striker element when closing the closure member and the predetermined direction wherein the latch bolt is movable being a substantially horizontal direction when the latching device is mounted in an upright position on the closure member; a latch bolt spring arranged to bias the latch bolt into the latching position and having such a spring constant that a force smaller than 30 N has to be exerted onto the latch bolt to move the latch bolt from its latching to its retracted position; and operator means mounted on top of the frame so as to be operable from both sides of the closure member and connected by means of a latch bolt operating mechanism to the latch bolt for moving the latch bolt from the latching to the retracted position. - View Dependent Claims (22)
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15. A self-latching device for fastening a hinged closure member, which device comprises:
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a frame arranged to be mounted on the hinged closure member; a latch bolt mounted on said frame so as to be movable in a predetermined direction between a latching position and a retracted position, the latch bolt being arranged to be moved towards its retracted position by contact with a striker element when closing the closure member and the predetermined direction wherein the latch bolt is movable being a substantially horizontal direction when the latching device is mounted in an upright position on the closure member; a latch bolt spring arranged to bias the latch bolt into the latching position; and operator means mounted on top of the frame so as to be operable from both sides of the closure member and connected by means of a latch bolt operating mechanism to the latch bolt for moving the latch bolt from the latching to the retracted position, the latch bolt operating mechanism comprising a follower element which is movably mounted on the frame according to a direction having at least a component coinciding with the predetermined direction wherein the latch bolt moves, the latch bolt being biased by the latch bolt spring against the follower element and the follower element being hingedly connected to the frame about a hinge axis which is located at a predetermined distance from the location where the latch bolt is biased by the latch bolt spring against the follower element, a force exerted onto the operator means to unlock the latching device being transmitted to the follower element at a location on the follower element situated at a distance smaller than said predetermined distance from the hinge axis of the follower element to move the follower element in said direction against the biasing force of the latch bolt spring.
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16. A self-latching device for fastening a hinged closure member, which device comprises:
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a frame arranged to be mounted on the hinged closure member; a latch bolt mounted on said frame so as to be movable in a predetermined direction between a latching position and a retracted position, the latch bolt being arranged to be moved towards its retracted position by contact with a striker element when closing the closure member and the predetermined direction wherein the latch bolt is movable being a substantially horizontal direction when the latching device is mounted in an upright position on the closure member; a latch bolt spring arranged to bias the latch bolt into the latching position; and operator means mounted on top of the frame so as to be operable from both sides of the closure member and connected by means of a latch bolt operating mechanism to the latch bolt for moving the latch bolt from the latching to the retracted position, wherein the frame is arranged to be mounted in a substantially vertical tubular member of the closure member or arranged to be fixed against the closure member and provided with a lateral opening for the latch bolt, the latching device comprising a bushing with a shoulder and a screw threaded portion, the bushing being arranged to be applied over the latch bolt and to be screwed with the screw threaded portion into the frame so that the shoulder engages the tubular member and the latching device is fixed to the tubular member, the bushing being further arranged to guide the latch bolt.
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17. A self-latching device for fastening a hinged closure member, which device comprises:
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a frame arranged to be mounted on the hinged closure member; a latch bolt mounted on said frame so as to be movable in a predetermined direction between a latching position and a retracted position, the latch bolt being arranged to be moved towards its retracted position by contact with a striker element when closing the closure member and the predetermined direction wherein the latch bolt is movable being a substantially horizontal direction when the latching device is mounted in an upright position on the closure member, the latch bolt having a distal extremity formed by a roll arranged to roll over an inclined surface of said striker element to push the latch bolt in when closing the closure member; a latch bolt spring arranged to bias the latch bolt into the latching position; and operator means mounted on top of the frame so as to be operable from both sides of the closure member and connected by means of a latch bolt operating mechanism to the latch bolt for moving the latch bolt from the latching to the retracted position.
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18. A self latching device for fastening a hinged closure member, which device comprises:
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a frame arranged to be mounted on the hinged closure member; a latch bolt mounted on said frame so as to be movable in a predetermined direction between a latching position and a retracted position, the latch bolt being arranged to be moved towards its retracted position by contact with a striker element when closing the closure member and the predetermined direction wherein the latch bolt is movable being a substantially horizontal direction when the latching device is mounted in an upright position on the closure member; a latch bolt spring arranged to bias the latch bolt into the latching position; operator means mounted on top of the frame so as to be operable from both sides of the closure member and connected by means of a latch bolt operating mechanism to the latch bolt for moving the latch bolt from the latching to the retracted position; and a striker element; a hinged latch having a first end, which is arranged to be caught in the closed position of the closure member behind said striker element, and a second end, which is arranged to be hingedly connected around a hinge axis to the closure member; and means for connecting the distal end of the latch bolt to the hinged latch, between the first and the second end thereof. - View Dependent Claims (19, 20, 21)
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Specification