Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Having separate expander means – Frangible member
Reexamination Certificate
2000-04-03
2001-11-27
Wilson, Neill (Department: 3627)
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Having separate expander means
Frangible member
C411S048000, C411S072000, C411S182000
Reexamination Certificate
active
06322305
ABSTRACT:
BACKGROUND OF THE INVENTION
Field of the Invention
This invention relates to a mounting element used in furniture building which can be inserted into a bore of a furniture element and fixed in place therein.
In connection with the building of furniture in particular, diverse mounting elements are required for connecting furniture elements, or for attaching diverse furniture fittings to a furniture element. A bore in the furniture element is often embodied as a blind bore, and the mounting element is in two pieces, wherein one part is inserted into the bore of the furniture element and is fixed therein. The part inserted into the furniture element is cup-shaped and is held in the bore of the furniture element by snug press fit alone.
SUMMARY OF THE INVENTION
It is one object of the invention to provide a mounting element for use in furniture building which is simple in construction and cost-effecting in manufacture, but can still be used for diverse purposes in furniture building.
In accordance with this invention, this object is achieved by a mounting element comprising a fastening sleeve and a connecting pin, wherein the fastening sleeve is divided into deflectable holding springs and is inserted into a bore of a furniture element, a the holding springs having tooth elements on an exterior and enclose a centered receptacle for the connecting pin. The connecting pin has a fastening receptacle or threaded receptacle, and the connecting pin is connected in one piece with the fastening sleeve by gates which act as predetermined breaking points and secure the connecting pin in a prepared position for being driven in the fastening sleeve. In another embodiment the object is achieved by a mounting element comprising a fastening sleeve and a connecting pin, wherein the fastening sleeve is divided into deflectable holding spring and is inserted into a bore of a furniture element. The holding springs have too elements on their exterior and enclose a centered receptacle for the connecting pin. The connecting pin is produced separately from the fastening sleeve, has a fastening receptacle or threaded receptacle, and is inserted into the receptacle of the fastening sleeve enclosed by the holding springs.
Use of the mounting element is considerably improved by the spreading of the holding springs of e fastening sleeve in the course of driving, or pushing, the connecting pin into the fastening sleeve already inserted into the bore of the furniture element. The connecting pin connected with the fastening sleeve and having a fastening receptacle or threaded receptacle provides a simple seating or screwing option for attaching a second furniture element or a furniture fitting. In this embodiment the connecting pin is maintained or brought into the prepared driving position allowing an easy and simple connection between the connecting pin and the fastening sleeve. The fastening sleeve and the connecting pin are produced as a one-piece mounting element or, in case of separate manufacture, they are brought in a simple way into the prepared driving position.
In one embodiment of a fastening sleeve holding springs are connected with each other by a disk on a front. In one embodiment the disk has a slit which preferably coincides with a slit which divides the fastening sleeve into the holding springs, so the fastening sleeve can also be deflected in the area of the disk and can be clamped in the bore of the furniture element.
In one embodiment of this invention exterior faces of the connecting pin and the interior surface of the holding springs are designed as smooth sliding surfaces resulting in an easier drive-in process of the connecting pin into the fastening sleeve.
In one embodiment of this invention securing the connecting pin in the receptacle by the holding springs is improved by detent shoulders with detent surfaces on a front face of the fastening sleeve facing away from the disk which snap into a circumferential detent groove of the connecting pin forming a connection which is practically non-releasable.
In one embodiment the detent groove and/or the detent shoulders have at least one detent step.
In one embodiment of this invention insertion of the fastening sleeve into the bore of the furniture element is limited by the disk contacting the furniture element.
In one embodiment of this invention access of a fastening means to the fastening bore or threaded bore of the connecting pin is made easier in that the fastening receptacle of threaded receptacle embodied as a fastening bore or threaded bore is provided with a continuously widening insertion opening for the connecting pin.
The fastening means can be a self-tapping screw, or a normal screw, matched to the threaded bore.
In one embodiment of this invention snap-in connection between the connecting pin and the fastening sleeve is improved in that the detent steps of the connecting pin and/or the detent surfaces of the detent shoulders of the holding springs of the fastening sleeve have roughened surfaces.
In one embodiment of this invention mounting outlay is reduced by forming the connecting pin and the fastening sleeve, or the connecting pin separated from the fastening sleeve, in one piece on a furniture fitting.
In one embodiment of this invention the connecting pin and the fastening sleeve form a one-piece mounting element having gates at the transition to the connecting pin. The gates have predetermined breaking points that, when driving the connecting pin into the receptacle of the fastening sleeve, break off and are guided into the receptacle of the fastening sleeve as centering tabs for the connecting pin.
In one embodiment of this invention the connecting pin and the fastening sleeve are manufactured as separate elements having tabs which project into the receptacle of the fastening sleeve in an area of an insertion side which, when driving the connecting pin into the fastening sleeve, are deflected into the receptacle and act as centering tabs for the connecting pin.
In one embodiment of this invention the connecting pin is a connecting bolt having two detent grooves for connection with two fastening sleeves. Therefore it is possible in a simple manner to connect two furniture elements with each other in a simple way.
A possible embodiment of the invention secures the connecting pin of the receptacle of the fastening sleeve in a prepared position for being driven in.
REFERENCES:
patent: 4840523 (1989-06-01), Oshida
patent: 4856950 (1989-08-01), Bushnell
patent: 5163795 (1992-11-01), Benoit et al.
patent: 5370484 (1994-12-01), Morikawa et al.
patent: 5568675 (1996-10-01), Asami et al.
patent: 5759002 (1998-06-01), Essenberg
Karl Simon GmbH & Co. KG
Pauley Petersen Kinne & Fejer
Wilson Neill
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