Door blocking device

Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Closure checks

Patent

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Details

292338, E05F 502

Patent

active

049824740

DESCRIPTION:

BRIEF SUMMARY
BACKGROUND OF THE INVENTION

The present invention relates to an arrangement for a door intended, in conjunction with the closing of same, to prevent injury by crushing between the door leaf and the case, comprising a body component with a plane surface intended to be mounted against the door leaf, in which body component a longitudinal blocking component is pivotally mounted.
A large number of such injuries by crushing occurs every year, mainly to the hands and fingers in conjunction with playing with doors or as a result of doors blowing shut in cross-draughts, etc. Not only are injuries by crushing extremely painful, but they can also cause disfigurement for life.


SUMMARY OF THE INVENTION

The object of the present invention is to make available an arrangement which automatically eliminates injury by crushing around all the edges of the door, the manner in which this is achieved being characterized in that the aforementioned body and blocking components have means which define a relative angular position essentially involving the direction of longitudinal extension of the blocking component forming a normal to the plane surface of the body component, which angular position the components are forced to adopt by a spring acting between said body, and blocking components in conjunction with which the body component with the blocking component mounted in it is intended to be mounted on the inside of the door leaf in a position such that, as the door is opened from a closed position, the blocking component, sliding against the door case along its length, finally leaves the case and freely adopts the aforementioned relative angular position in which, when the door is closed again, the free end of the blocking component will come up against the case and will thus prevent the door from being fully closed and that the arrangement comprises a buffer element intended to be applied to the door case at the point at which the free and of the blocking component is expected to come up against the case, which buffer element exhibits a concave, curved surface for the aforementioned free end of the blocking component. By means of the buffer element is achieved a relatively gentle arresting of the movement of the door towards its closed position on the one hand, and on the other hand no impact marks are produced on the door case when the free end of the blocking components makes contact with the case.
In accordance with one particular characteristic feature of the invention, the arrangement comprises a buffer element intended to be applied to the door case at a point at which the free end of the blocking component is expected to come up against the case, which by means of the buffer element is achieved a relatively gentle arresting of the movement of the door towards its closed position on the one hand, and on the other hand no impact marks are produced on the door case when the free end of the blocking components makes contact with the case.
In accordance with a particular characteristic feature of the invention, the arrangement comprises a snap-action device acting between the aforementioned components and so arranged, against the action of the spring, as to retain the blocking component in a detachable fashion, preferably so that the direction of longitudinal extension of the blocking components is approximately parallel with the plane surface of the body component. With the help of this snap-action device it is possible, for example, for grandparents to set the arrangement to function only when the grandchildren are visiting.


BRIEF DESCRIPTION OF THE DRAWINGS

The invention is described below in more detail with reference to the accompanying drawing, which illustrates in plan view from above the function of an arrangement in accordance with the invention during the following phases: door closed, FIG. 1; door prevented from being closed, FIG. 2; and arrangement in the inactive position, FIG. 3.


DESCRIPTION OF THE PREFERRED EMBODIMENT

The designation 1 is used in the drawing generally in respect of an arrangement

REFERENCES:
patent: 614741 (1898-11-01), Moore
patent: 742782 (1903-10-01), Foster
patent: 890207 (1908-06-01), Anderson
patent: 1105963 (1914-08-01), Clem
patent: 1827143 (1931-10-01), Doyle
patent: 3055043 (1962-09-01), Luttner, Jr.
patent: 4015867 (1977-04-01), Siden

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