Closure fasteners – Bolts – Sliding and rotary
Patent
1999-04-19
2000-04-04
Dayoan, B.
Closure fasteners
Bolts
Sliding and rotary
292182, 292DIG21, E05C 502
Patent
active
06045167&
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
This invention relates to a self-acting locking bolt.
If fairly large furniture doors are only locked in the center of the door, over the course of time they will warp. To remedy this, it is conventional practice to bolt at least one door leaf, the so-called fixed door leaf, to the frame at the top and bottom. In recent times a central locking mechanism using so-called drive rods has also been adopted.
SUMMARY OF THE INVENTION
The object of the present invention is to provide a locking bolt with which, in a simple manner, a fixed door leaf or a moving door leaf can be secured at the top and bottom in the frame, or to a door leaf in a surround.
These and other objects of the invention are met by a self-acting locking bolt as described below.
In a self-locking bolt for doors or the like, more particularly furniture doors, comprising at least one receiving part on a door leaf or frame, and at least one locking part on the other door leaf or on a door leaf, according to the invention the locking part has a steering connecting-link for a pin of a bolt guided so as to be movable vertically in the locking part, the said pin projecting sideways out of the locking part, wherein the locking part is substantially flush with the top edge or bottom edge of the door leaf and the bolt does not project, or projects only slightly, beyond the top edge of the locking part when the door leaf is in an open position, and projects beyond the top edge into a matching location in an associated frame part when the door leaf is in a closed position. The receiving part has a recess with which the pin of the bolt may be brought into engagement in the locking operation and is pushed along the connecting-link guide, and in which the pin is located when the door leaf is closed. The receiving part may be fitted to the moving door of a double leaf door or in the frame of a single leaf door.
The bolt is mounted perpendicularly in the locking part and spring-operated in the opposite direction from the frame part. The pin is aligned horizontally in relation to the bolt, and the receiving part and/or the locking part is/are in the shape of a flat parallelepiped, one or more projections being arranged on the reverse side thereof for pinning, secured against rotation, into a furniture part.
On their sides facing towards the frame part, the receiving part and/or the locking part have resiliently mounted, upwardly rounded snap-action studs for releasably snapping into matching recesses in the frame part. The spring for the snap-action stud is mounted on an eccentric disc adjustable from the exterior, by which the spring force can be adjusted.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention is explained in more detail below by way of example, with the aid of the drawings in which:
FIG. 1 shows the receiving part and the locking part in a double leaf door in a closed position;
FIG. 2 shows the receiving part and the locking part in an open position.
FIG. 3 is a plan view of the receiving part;
FIG. 4 is a plan view of the locking part;
FIG. 5 is a left side elevation of the receiving part;
FIG. 6 is a front elevation of the receiving part;
FIG. 7 is a front elevation of the locking part;
FIG. 8 is a right side elevation of the locking part;
FIG. 9 is a bottom plan view of the receiving part;
FIG. 10 is a bottom plan view of the locking part;
FIG. 11 is a left side view of the receiving part;
FIG. 12 is a rear elevation of the receiving part;
FIG. 13 is a rear elevation of the locking part; and
FIG. 14 is a left side elevation of the locking part.
DESCRIPTION OF THE PREFERRED EMBODIMENT
In FIG. 1 the self-acting locking bolt is fitted in a double leaf door 3, 4. The door is closed. The locking bolt comprises a receiving part 1 which is fitted flush in the top right-hand corner in the moving leaf 4, and a locking part 2 which is fitted flush in the top left-hand corner of the fixed leaf 3. Both parts are flat parallelepipeds and are largely identical in structure.
The locking part 2 has a bolt 5, displaceable vert
REFERENCES:
patent: 969624 (1910-09-01), Hoes
patent: 1030192 (1912-06-01), Kutz
patent: 1120521 (1914-12-01), Oborny
patent: 1207600 (1916-12-01), Morgan
patent: 1321757 (1919-11-01), Kinzel
patent: 1483097 (1924-02-01), Kline
patent: 1570135 (1926-01-01), Emmert
patent: 2448239 (1948-08-01), Urberauaga
patent: 3579369 (1971-05-01), Coopersmith
patent: 5032045 (1991-07-01), Calco
Dayoan B.
Estremsky Gary
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