Closure fasteners – Bolts – Sliding
Patent
1997-02-11
1998-07-28
Saether, Flemming
Closure fasteners
Bolts
Sliding
292DIG37, 292DIG65, 312139, E05C 112
Patent
active
057853630
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention relates to a closure device or latching mechanism for cabinet doors and drawers.
As a rule, cabinet doors and drawers can readily be opened from the outside. However, this is especially of disadvantage if objects are disposed within the cabinets, which are not intended to be accessible to everyone, and especially not to children. Among these objects are knives and forks, cleaning agents or medications.
A closure for drawers is already known which is said to ensure that food items disposed in the drawer do not dry out (U.S. Pat. No. 1,906,723). In the case of this drawer closure, however, a complex and additional mechanism is necessary since the drawer is to be closed airtight.
Furthermore, a securement device for gates or the like is known in which a drive with two sides is required (DE 92 14 278.8 U). This securement device, moreover, comprises a locking latch movable by the force of a spring in a recess. This securement device, primarily intended for gates which can be raised and lowered in lateral rails, is not suitable for the securement of cabinet doors and drawers.
In a known childproof closure for cabinets disposed under sinks, which does not require a key and yet cannot be opened by children, a snap closure is provided which is actuated via a wire pull by means of a pull knob (DE 34 08 791 A1). The pull knob is disposed such that the distance between pull knob and door handle is so large that with an infant's hand, it is not simultaneously possible to reach the two, as is required for opening the door.
Further is known a snap latch-bar device for doors and gates which comprises a guide housing and an actuation housing connected with each other (DE 78 37 900 U). In the guide housing is disposed a latch bar which at its one end bears a snap latch-bar which is prestressed into a locking position by a helical compression spring. At the other end of the snap latch-bar is disposed a yoke which is located in the actuation space. This yoke is part of a double-action actuating mechanism, which comprises a rotatable press-keyed nut and two press-keyed nut arms. When rotating the press-keyed nut, the latch bar is pulled downwardly regardless of whether or not the press-keyed nut is rotated in the clockwise or in the counterclockwise direction. This known device is too complicated for a child safety mechanism since it requires a tool in order to rotate the press-keyed nut.
Furthermore is known a closure for a medicine cabinet which can only be opened with the aid of two hands (U.S. Pat. No. 2,759,782). On the medicine cabinet are provided two slide levers of which the one must be moved horizontally and the other vertically in order to open the door of the medicine cabinet. If they are operated with the finger and thumb of one hand, the door does not open because the resulting forces are directed away from the suspension of the door. In order to open the door, the second hand must be used additionally.
In the case of another known snap-in mechanism for cabinets and the like, means are provided which permit adults, but not children, to open a door (U.S. Pat. No. 2,924,477). This snap-in mechanism comprises two snap elements which are affixed on the cabinet with one of these elements being fastened on the housing frame and the other element on the door. In addition, this mechanism comprises two actuation members rotatably disposed in the cabinet and comprising levers projecting from a side wall so that they are accessible from the outside. These levers are partially encompassed by a covering with an opening which permits limited access to the levers. In order to open a door, thumb and finger of a person must be inserted into said openings and the levers must be pressed together. A child with smaller fingers is not capable of inserting its fingers sufficiently far into said openings.
Further a security closure for containers, in particular medicine cabinets, is known, which makes it impossible for children to open a door (U.S. Pat. No. 3,519,299). The security closure com
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PCT Internation Patent Application No. WO 96/05398 Published on Feb. 22, 1996.
Kraner Hermann
Stopfer Joachim
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