Buckles – buttons – clasps – etc. – Separable-fastener or required component thereof – With third detached member completing interlock
Patent
1998-09-08
1999-11-30
Brittain, James R.
Buckles, buttons, clasps, etc.
Separable-fastener or required component thereof
With third detached member completing interlock
361807, 361825, G06F 118, H05K 714
Patent
active
059919833
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention relates to a securing device.
Standard flat components, in particular the plug-in cards used in computer technology, are usually mounted with the aid of assembly brackets at appropriately designed mounting locations. Secured to these assembly brackets there is in each case at least one plug-in connector, which establishes the connection of the plug-in card to external terminals. The housing wall therefore has at the mounting locations in each case slot-like clearances, which are covered by the respective assembly bracket. Also provided on the assembly bracket is a securing flange, which is attached at right angles, lies snugly against a correspondingly angled support surface of the housing wall and is releasably fixed there by means of a screw or clamp connection.
By way of example, German reference DE 44 03 907 A1 discloses a securing device in the form of a clamping strip which reaches over all the insertable flat components or their assembly brackets and, in the fitted state, fixes all the plug-in cards and, in the releasing state, releases all the plug-in cards, and which has flexible regions which are assigned to the individual plug-in cards. A disadvantage in this case is that, irrespective of the number of mounting locations occupied, a clamping strip wide enough to cover all the mounting locations is always required and that, when retrofitting or exchanging, the securement has to be temporarily loosened for all the other, in fact unconcerned, flat components.
SUMMARY OF THE INVENTION
The present invention is thus based on the object of securing the assembly bracket of plug-in cards a device which is as simple as possible and also can be handled as easily as possible, permitting an individual reliable securement on the housing of each individual flat component.
In general terms the present invention is a securing device for the assembly bracket of standard flat components which are releasably secured by the assembly bracket at mounting locations in the form of slot-like clearances in a housing wall of a data-processing device. The securing flange of the assembly bracket lies against an angled support surface of the housing wall and is correspondingly angled. The securing flange can be fixed by means of a clamp device. Each securing flange is assigned an individual clamp device. The spring element of a respective clamp device is supported with the bow ends of the housing wall. The spring element is capable of snapping in between the securing flange of the assembly bracket and in each case a catch element provided on the housing wall.
Advantageous developments of the present invention are as follows.
The clamp device consists of flexible plastic.
The clamp device has on the side facing the securing flange an centering pin, which enters through a U-shaped notch in the assembly bracket into a hole-like clearance in the support surface of the housing wall.
The side of the clamp device facing the securing flange is designed as a surface which is plane-parallel to the securing flange.
A gripping element which projects in a nose-like manner is provided at the region of the bow-like spring element facing away from the securing flange .
BRIEF DESCRIPTION OF THE DRAWINGS
The features of the present invention which are believed to be novel, are set forth with particularity in the appended claims. The invention, together with further objects and advantages, may best be understood by reference to the following description taken in conjunction with the accompanying drawings, in the several Figures of which like reference numerals identify like elements, and in which:
FIG. 1 shows a cutout from a housing wall of a computer housing with a securing device according to the invention in a perspective representation,
FIG. 2 shows the clamping element as a component part of the device according to FIG. 1,
FIGS. 3, 4 show the securing device according to FIG. 1 at the time of assembly or after assembly.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
FIG. 1 shows a cutout of a
REFERENCES:
patent: 4180247 (1979-12-01), Pfarr, Jr.
patent: 4708895 (1987-11-01), Mizusawa
patent: 4754533 (1988-07-01), Awakowicz et al.
patent: 4873395 (1989-10-01), Mast
patent: 5304735 (1994-04-01), Earl et al.
patent: 5694291 (1997-12-01), Feightner
patent: 5757618 (1998-05-01), Lee
Kohler Friedrich
Mysz Dietmar
Brittain James R.
Sandy Robert J.
Siemens Nixdorf Informationssysteme Aktiengesellschaft
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