Movable or removable closures – Panel with closure feature
Patent
1988-07-14
1990-05-08
Kannan, Philip C.
Movable or removable closures
Panel with closure feature
49505, E06B 300
Patent
active
049226592
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
This invention relates to a support structure for a metal door both the height and the width of which are adjustable, as well as to a fixed frame therefor and height and width of which are likewise adjustable.
It is known that metal doors are provided with a very rugged inner metal structure which is conveniently covered, for example, by wood panels or the like.
Such metal structures normally have a fixed size and, therefore, they should be made in accordance with door dimensions that are varied each time.
This is obviously a great disadvantage and also affects the final cost of metal door since its metal structure has to be constructed to specific demands.
Attempts have been made to make metal structures height-adjustable by performing a precutting operation on the lower part thereof but without addressing the problem of adapting them in width. Usually, a maximum height is chosen as a starting height and, if a wall opening in which a door is to be mounted, is smaller in height, some precut portions are removed from the structure so that it and the door itself fit the height of the wall opening.
This is not a satisfactory approach since it does not permit the height to be adjusted to a large extent, and the width remains a prefixed width.
SUMMARY OF THE INVENTION
The object of the present invention is to overcome the foregoing disadvantages. The object of the invention is achieved by providing a metal structure for metal doors which is adjustable both as in width so in height to a large extent so that it can be adapted to practically any size of a door wall opening.
According to the invention, there is also provided a frame, likewise adjustable in width and height and which is adapted to accommodate the metal structure or, more specifically, the metal door obtained from such a structure.
Moreover, the metal structure of the invention is also a reversible structure in that it can be made either right-handed or left-handed, so that the hinge side of the metal door can be selected according to requirements.
The metal structure for metal doors in accordance with the invention is characterized in that it includes a pair of substantially vertically extending upright elements one of which is associated with a post member carrying hinge means, and the other one is associated with a post member carrying lock means. These elements are able to slidably move horizontally with respect to one another and include means that provides for mutual interengagement. This means is provided at the top and the bottom of the elements and include pairs of slides which are vertically slidable relative to the elements. The two slides of each pair are also able to move in an horizontal plane with respect to one another.
More particularly, the two upright elements, in addition to being associated with respective post members, are also associated with metal plates which at least partially overlap one another and which are provided with reinforcing cross-pieces.
The upper and lower slides include respective post pieces which are at least partially accommodated in the post members associated with the upright elements, and respective plates which overlap, by mutual interengagement, the corresponding plates of the upright elements.
Thus, the metal structure can be adjusted both in width and height to accommodate the required dimensions.
After the structure has been adjusted to the desired dimensions, the entire assembly is secured together by screws.
Associated with the metal structure is a respective frame which is likewise adjustable in width and height and which includes a pair of frame posts having precut portions at the upper and lower ends thereof, as well as pair of upper angle members the vertical limbs of which are received in the frame posts while the horizontally directed limbs are fitted into one another. One of these horizontal limbs has precuts provided in it.
These and other features of the invention will readily be apparent from reading of the following detailed description of the preferred em
REFERENCES:
patent: 2913777 (1959-11-01), Viets
patent: 4319431 (1982-03-01), Siers
patent: 4517767 (1985-05-01), Dewson
Kannan Philip C.
Striker Michael J.
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