Joints and connections – With adjunctive protector – broken parts retainer – repair,... – Holding means or protector functioning only during...
Reexamination Certificate
1998-05-27
2001-03-20
Knight, Anthony (Department: 3629)
Joints and connections
With adjunctive protector, broken parts retainer, repair,...
Holding means or protector functioning only during...
C016S237000, C016S382000, C016SDIG004, C411S546000
Reexamination Certificate
active
06203231
ABSTRACT:
BACKGROUND OF TBE INVENTION
1. Field of the Invention
The invention relates to a fastening assembly for a metal fitting means, preferably to fasten a hinge arm to a supporting wall of a piece of furniture, having a fastening plate which for adjustment purposes is provided with two oblong holes on a common centreline through which fastening screws engage, wherein one fastening screw is supported with its head on a spacer means whose height is greater than that of the fastening plate, and wherein another fastening screw braces the fastening plate against the supporting wall or similar.
2. Brief Description of the Related Art
A fastening plate of this type is known from DE 35 01 048 C2 and consists of a bottom portion in the shape of a cross and plate with an elongated centre section which is provided with lateral wing-like attachments with the bottom portion being covered by a correspondingly designed top portion, oblong holes being provided in the wing-like attachments of the top portion and with the spacer means comprising a shaft-like protrusion which penetrates an oblong hole of the top portion in such a way that some slight axial play remains between the head of a screw screwed into the shaft-like protrusion and the top plate so that the top plate can be moved in the direction of the two oblong holes relatively to the bottom plate for the purpose of adjustment in one direction. To secure the position set, the top plate is braced with the bottom plate by means of the fastening screw penetrating the other oblong hole. The known fastening plate is relatively complex as it is designed in two parts and comprises a T-shaped bottom plate which is completely covered by a correspondingly designed top plate.
SUMMARY OF THE INVENTION
It is therefore the object of the invention to provide a more simply designed fastening assembly of the type first described which can be manufactured with less effort and more economically.
This object is achieved in accordance with the invention by the spacer means comprising a frame provided with a borehole, by the frame having a width corresponding to the oblong hole and being provided with lateral lugs overlapping the edges of the oblong hole and by the height of the frame between its bottom side and the bottom side of the lugs being greater than the height of the fastening plate.
In the fastening plate in accordance with the invention, its movability over the length of the oblong holes for the purpose of adjustment is ensured by the fact that one oblong hole is guided directly on the fastening screw which braces the fastening plate to a supporting wall or similar and that the other oblong hole is guided on the frame which equally takes on the function of a pressure guide. The frame forming the pressure guide is characterised by a small size so that it can be manufactured relatively simply with a low material requirement from die cast zinc (Zamak®) or as a sheet metal part. As the frame abuts the side edges of an oblong hole with its sides, it takes over the guidance of the fastening plate during any required adjustment movement. As the fastening plate possesses only a little play between the bottom side of the lugs of the frame and the supporting or fastening wall, a movement is ensured, on the one hand, for the purpose of adjustment and, on the other hand, any undesired lifting of the fastening plate is prevented.
In accordance with another embodiment of the invention, the object is solved by the spacer means comprising a frame being provided with a borehole, by the frame having a width corresponding to the oblong hole and by the head of the fastening screw penetrating the borehole of the frame overlapping the edges of the oblong hole play. In this embodiment of the invention, the fastening plate possesses such great play between the head of the fastening screw and the supporting wall that the fastening plate can be moved for the purpose of its adjustment. However, any undesired lifting of the fastening plate is prevented by the head of the fastening screw overlapping the edges of the oblong hole.
Appropriately, the frame is provided with a broadened edge section on its bottom side. This broadened edge section forms a support leg so that the frame does not press on the area of the edge of the borehole for the fastening screw in the supporting wall or similar with too great a surface pressure when the fastening screw overlapping it with its head is tightened. The broadened edge sections can consist of angular feet pointing away from each other which point in the direction of the oblong hole.
In another embodiment of the invention, it is provided that the shaft of the frame is provided with recesses on the long sides of the edges of the oblong hole and that the distance of the parallel planes limiting the outer sides of the recesses is smaller than the diameter of the thread section of the fastening screws. In this way, it is possible to pre-mount the fastening screws in such a way that these are partially screwed into the fastening plate so that for their mounting during transportation and assembly they cut into the edges of the oblong holes with their threads.
To ensure that the fastening plate can still be adjusted for the purpose of its adjustment with the fastening screws screwed in or almost screwed in, the fastening screws appropriately possess a thread diameter which is greater than the width of the oblong holes with a thread-free section being located between the heads of the fastening screws and their thread sections with a diameter which is smaller than the width of the oblong holes.
In their centre section, the oblong holes can be provided with increases of breadth in which the threads of the fastening screws cut for their mounting.
Fastening plates with oblong holes providing an adjustment capability, the centre section of which has oblong holes in which fastening screws are screwed for the purpose of mounting and pre-assembly. The fastening screws are provided with thread-free sections between their heads and their thread sections known from DE-OS 27 51 459.
In accordance with another embodiment, it is provided that the edges of the oblong hole overlapped by the lugs are positioned in a hollow of the fastening plate, that the head of the fastening screw overlaps the edges of the hollow with play and that play exists between the lugs and the hollow.
The hollows for the edge areas of the oblong hole can be formed by an edge step.
If the fastening plate is movable in the direction of the centreline of the oblong holes in accordance with the second embodiment of the invention, and if the fastening plate is secured in this position against any lifting from the support wall only by the head of the fastening screw overlapping the edges of the oblong hole penetrated by the fame, the fame can be provided with a foot winch is broadened like a flange and consisting of a circumferential edge, because in this embodiment, the frame and its shaft portion, which corresponds to the width of the oblong hole, can be inserted into the oblong hole before the fastening screw which is supported on the frame is screwed in.
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patent: 4642846 (1987-02-01), Lautenschlager
patent: 4768259 (1988-09-01), Rock et al.
patent: 4862556 (1989-09-01), Grass
patent: 4881297 (1989-11-01), Grass
patent: 5561888 (1996-10-01), Lautenschlager
patent: 5709513 (1998-01-01), Tsai
patent: 5906080 (1999-05-01), DiGirolamo et al.
patent: 5918321 (1999-07-01), Olle
patent: 5966779 (1999-10-01), Salice
patent: 2714082 (1977-03-01), None
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patent: 3717376 (1988-01-01), None
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patent: 3841933 (1991-03-01), None
Arturo Salice S.p.A.
Binda Greg
Knight Anthony
Ostrolenk Faber Gerb & Soffen, LLP
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