Supports: cabinet structure – With movable components – Horizontally movable
Patent
1995-03-06
1997-05-27
Cuomo, Peter M.
Supports: cabinet structure
With movable components
Horizontally movable
3123481, A47B 8804
Patent
active
056325410
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention refers to a locking device for detachably securing drawers, pullouts, sliders or the like to a guide rail, including at least one locking element secured to the forward end of the movable part of the guide rail.
Such locking devices are known. The known locking devices have however the drawback of carrying visible, i.e. easily accessible actuating means. This is optically less pleasing. Moreover, the easy accessibility increases the risk of an unintentional detachment, with all adverse consequences like danger of accident, damage, etc.
When heavy, e.g. filled sliders, drawers, pullouts and the like are vehemently opened or closed, relatively great braking forces and acceleration forces may be encountered which will significantly strain the locking devices. This may lead to destruction or to deformations of the locking means which adversely affect the locking operation. This is serious when keeping the risk of accident in mind.
SUMMARY OF THE INVENTION
It is an object of the invention to create a highly stressable locking device which is easy to operate while eliminating undesired operating errors and which is invisible as far as possible, i.e. not optically disturbing, and can be secured quickly and without any problem.
This object is attained by providing the locking element with a first spring-elastic actuating arm which includes a locking means preferably receiving vertical forces, and by providing the locking element and/or the slideable part of the guide rail in the support area of the drawer with a second locking means which receives horizontal forces.
Further advantageous embodiments of the invention are described in the subclaims.
The advantages attained by the invention are in particular that each locking means receives forces acting in a certain direction (horizontal/vertical).
Thus, the horizontal forces generated in direction of the guide rails during opening/closing of the drawer, pullout or the like are received by first locking means and the vertical forces acting in direction of a lift-off of the drawer, pullout or the like are absorbed by a second locking means.
The partly significant horizontal forces encountered during violent opening/closing of large and fully packed drawers, pullouts and the like and effecting an acceleration/deceleration are received without any problems by the suitably arranged first locking means/locking lugs without experiencing any of the previously described troubles.
BRIEF DESCRIPTION OF THE DRAWING
Two preferred exemplified embodiments will now be described in more detail with reference to the drawings, in which
FIG. 1 is a plan view of a guide rail of a first exemplified embodiment with a first locking element being inserted;
FIG. 1a is a side view of FIG. 1, viewed in direction of arrow A of FIG. 1;
FIG. 2 is an illustration according to FIG. 1, however with attached and locked drawer;
FIG. 2a is an enlarged illustration of FIG. 2;
FIG. 3 is an illustration according to FIG. 2, with the drawer not yet locked;
FIG. 4 is a side view of the locking element;
FIG. 5 is a sectional view of the locking element along the line V--V of FIG. 6 in assembled state;
FIG. 6 is a plan view of the locking element;
FIG. 6a is a side view of the locking element in direction of arrow C;
FIG. 6b is a side view of the locking element in direction of arrow D;
FIG. 7 is a plan view of a guide rail of a second exemplified embodiment with a locking element being inserted;
FIG. 7a is a side view of the FIG. 7, viewed in direction of arrow E of FIG. 7;
FIG. 8 is a perspective illustration of the locking element inserted in the guide rail;
FIG. 8a is a perspective illustration of the locking element;
FIG. 9 is a partially sectional illustration according to FIG. 7, with attached and locked drawer;
FIG. 10 is a sectional view of the locking element;
FIG. 11 is a plan view of the locking element;
FIG. 11a is a side view of the locking element in direction of arrow F of FIG. 11;
FIG. 11b is a side view of the locking element in direction of a
REFERENCES:
patent: 3092429 (1963-06-01), Barnes
patent: 3589778 (1971-06-01), Olson
patent: 3995927 (1976-12-01), Stein
patent: 4065196 (1977-12-01), Stein
patent: 4557531 (1985-12-01), Rock et al.
patent: 5181772 (1993-01-01), Albiez
patent: 5261737 (1993-11-01), Faust et al.
patent: 5439284 (1995-08-01), Grabher
Cuomo Peter M.
Feiereisen Henry M.
Paul Hettich GmbH & Co.
Wilkens Janet M.
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