Supports: cabinet structure – With movable components – Horizontally movable
Reexamination Certificate
1996-02-29
2001-12-04
Cuomo, Peter M. (Department: 3636)
Supports: cabinet structure
With movable components
Horizontally movable
C313S334000, C313S334000
Reexamination Certificate
active
06325473
ABSTRACT:
BACKGROUND OF THE INVENTION
The invention relates to a pull-out guide fitting for a drawer and including a carcass-side supporting runner or rail and a drawer-side pull-out runner or rail on each side of the drawer. A running member such as a roller or the like is supported on each runner. The roller of each pull-out runner is guided between two running flanges of the respective supporting runner and the running flange of each pull-out runner covers the two running flanges of the associated supporting runner.
The best running properties of such pull-out guide are achieved with rollers. In some cases, generally for reasons of cost, plastic slides are used instead of rollers.
SUMMARY OF THE INVENTION
The object of the invention is to provide an improved pull-out guide fitting of this type.
Such object according to the invention is achieved in that the pull-out runners have horizontally projecting fins which are disposed below the running flanges of the pull-out runners and which have free ends projecting beneath the upper running flanges of the corresponding supporting runners in such a way that the pull-out runners are secured against unintentional lifting off from the supporting runners.
In order to reduce the unintentional lifting of the drawer to a minimum and thereby to prevent a stop at the front end of the supporting runner from being overrun, it is advantageously provided that in a manner which is known per se the supporting runners have free edge flanges against which the fins of the lifted pull-out runners strike.
A good lateral guiding of the pull-out guide with a simultaneous increase in loading capacity is achieved by providing the running flange of one of the pull-out runners with a longitudinally extending bead, the side walls of which are guided on the roller which is supported on the supporting runner.
A further embodiment of the invention provides that the rollers of the supporting runners are supported in respective plastic blocks, each of which is provided with a laterally projecting stop for the fins of the respective pull-out runner. Spindles of the rollers are mounted at both ends thereof in walls of the plastic blocks. In this way a very stable support of the rollers is achieved. The plastic block advantageously has lateral guide surfaces for the pull-out runner, so that a lateral guide is also provided for a drawer which is largely pulled out of the carcass or body of an article of furniture. Moreover, when the drawer is pulled out and pushed in, smooth running is ensured by plastic and metal sliding of one another. In order to facilitate a rapid installation of the plastic block without tools, in an advantageous embodiment of the invention each supporting runner which has lower and upper running flanges and the lower running flange has stamped-out fins below which project projections of the plastic block.
A rapid installation of the supporting runners in the carcass of the article of furniture is achieved in that the supporting runners are fixed on the furniture carcass by means of separate retaining plates which are disposed at the front end and at the rear end of each supporting runner. In one embodiment at least one of the retaining plates is provided with a hook which engages in a punched hole in the supporting runner. In this construction the supporting runner merely needs to be pressed onto the retaining plate, the hook engages in the punched hole and thus the supporting runner is anchored in the furniture carcass. It is advantageously provided that the retaining plate at the rear end of the supporting runner rests on an end face of the supporting runner and has upper and lower retaining tabs which jut out in the longitudinal direction of the supporting runner, the hook being constructed on at least one of the tabs. In this way the rear end of the supporting runner can be rapidly anchored on the retaining plate without having to be fixed by means of a tool.
In order to ensure that the supporting runners are held in correct alignment, in a further embodiment of the invention it is proposed that the retaining tab opposite to the hook has a projection which can be pushed into a slot which is open to the rear in a horizontal flange of the supporting runner. Advantageously the projection is received with clearance in the slot on one side of the drawer, while on the other side of the drawer it engages tightly in the slot.
In another embodiment the rear retaining plate is constructed on a lower flange thereof with two knobs which receive the supporting runner therebetween with a clearance. An upper retaining tab is of resilient construction and has a bend by means of which it retains and grips the supporting runner. In this way the alignment of the supporting runner deep inside the piece of furniture can be easily corrected. For example, the supporting runner can be mounted at the front thereof by the front retaining plate by screws to a furniture frame, and is supported without screws by the rear supporting plate.
REFERENCES:
patent: 4176890 (1979-12-01), Gorton
patent: 27 31 953 (1978-01-01), None
patent: 38 32 701 (1990-03-01), None
patent: 94 13 108 (1995-01-01), None
patent: 0 613 639 (1994-09-01), None
Brustle Klaus
Hollenstein Helmut
Rock Erich
Cuomo Peter M.
Julius Blum Gesellschaft m.b.H.
Vu Stephen
Wenderoth , Lind & Ponack, L.L.P.
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