SCHWARTZBERG, Ami (8 St. Rimalt Elimelch, Ramat-Gan, 52281, IL)
BARNEA, Michael (P.O.Box 3657, Kadima, 60920, IL)
SCHWARTZBERG, Ami (8 St. Rimalt Elimelch, Ramat-Gan, 52281, IL)
1. A rail system for sliding doors and windows, wherein at least one panel is supported by tracks, said system comprising; • at least one slidable panel;
• a construction casing within which said at least one panel is slidable;
• at least one track on which said at least one panel is slidable;
• at least one track releasably fastened to said construction casing by fastening means.
2. A rail system as in claim 1 , wherein at least two tracks form a sequence of track components.
3. A rail system as in claim 2, further including a spacer, wherein said spacer is installed between said at least two tracks.
4. A rail system for sliding doors and windows as in claim 1 , wherein a flat vertical plate flanks the bottom surface of said construction casing, and disposed in an upright position.
5. A rail system for sliding doors and windows as in claim 1 , wherein said track further comprises two flat vertical plates respectively flanking the base plate of said track on both sides and perpendicularly extending therefrom, wherein a first vertical plate extends upwards from said track's
base plate, and a second vertical plate extends from said base plate of said track both upwards and downwards and having at least one hole disposed thereon above the level of said base plate.
DETACHABLE TRACKS FOR SLIDING DOORS AND WINDOWS
The present application claims the benefit of priority to US Provisional Patent Application Serial Number 60/824,441 , filed September 3, 2006, entitled "detachable tracks for sliding doors and windows" The aforementioned application is incorporated herein by reference.
FIELD OF THE INVENTION
The present invention relates in general to sliding doors and windows systems. More particularly, the invention relates to tracks for sliding doors and windows.
BACKGROUND OF THE INVENTION
Sliding doors move along metal, wood, or plastic resin tracks. Sliding doors and windows consist of one or more panels, which slide on one or more tracks, or are suspended from one or more tracks. Each such panel consists of a frame (usually metallic, wooden or plastic) onto which wheels may be attached. The frame typically houses glass, mesh or sets of slats. One or more tracks are supported by a construction element such as a wall, floor or window/door interior casing, forming a smooth plane on which the track is laid.
Typically, a guide rail of the track protrudes in a direction normal to the base of the track, to guide each door or window. Typically, to drain water at the
window/door bottom interior casing the tracks are made shorter than the window/door bottom interior casing, forming a gap through which water can be drained from the interior of the window casing. Also, notches along the track are usually made to assist in such water drainage.
Some drawbacks are associated with the traditional sliding window/door track system such as that they tend to collect dirt and thus require special effort to clean. The tracks usually employ conspicuous metal rail guides that pose a serious impediment to both foot and wheel traffic. Even in the presumed safety of one's home, the persistence of this awkward structural feature can cause passers-by to trip and fall. In addition, handicapped in wheelchairs find it almost impossible to traverse this impediment without able assistance.
A particular sliding door is disclosed in U.S. Patent Application publication number 2006/0143856A1. One of its innovative features is the elimination of the rail guide on the traditional sliding track. The rail guide is replaced by a pair of solid metal rails. The present invention offers a simpler, efficient and versatile solution applicable to commercial and residential sliding door and window system which will be describe below in detail.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 is a schematic description of a sliding window with detachable tracks;
Fig. 2A is a schematic description of one end of a rail track fastened to the bottom interior casing of a sliding window;
Fig. 2B is a schematic description of a sided window casing;
Fig. 3A is a schematic description showing the second end side rail track fastened to a sliding window bottom interior casing;
Fig. 3B is a schematic description of a window track profile;
Fig. 3C is a schematic description of a door track profile;
Fig. 4 is a schematic description of a spacer;
Fig. 5 is a schematic description showing one application of spacers; Fig. 6 is a schematic description of a sliding window with detachable tracks in accordance with the preferred embodiment of the present invention;
Fig. 7 is a schematic description of a window track in accordance with the preferred embodiment of the present invention.
DETAILED DESCRIPTION OF THE PRESENT INVENTION
In accordance with the present invention a sliding door/window with detachable rail tracks is provided. The track, either a single part or formed as a sequence of track components, is supported by a construction element. The track components are fitted into the window interior casing at the top, bottom or both so that the window frame can slide horizontally. At one end a track is fastened to the construction element by pins, screws or any other fastening method and at the second end by a clip or any other fastening method. Under normal circumstances the track functions as a traditional sliding window/door track, but subsequent to the detachment and the removal, a smooth surface is left below the level of the removed track.
An example of a sliding window in accordance with the present invention is described schematically in Fig.1 to which reference is now made. Sliding window 30 consists of window casing 32, which may be made of metal, wood, plastic resin or any other suitable materials. The track components are fitted into the window bottom interior casing so that the window frame 34 can slide horizontally within the casing along the guiding rail track. Track component 36 is made such that when it is removed, as indicated in the figure, a smooth surface of window bottom interior casing 37 is left. An example of a mechanism for disassembling and assembling the track will be described next. In Fig. 2A to which reference is now made, one end of the track component fastened to the window interior casing is shown. One end of the track, (not shown), is afixed to
the window bottom interior casing in a manner which will be explained later. The other end of the track 36 is fixed to the window bottom interior casing by outwardly biased tongue 38 that secures the track by pressing downwards against the bottom interior casing and preventing it from sticking up. To release one end of the track, the biased tongue is pressed towards the casing. The outwardly biased tongue is fastened at the bottom side of casing 40. The securing tongue and function are explained in more detail in reference to Fig. 2B. Spring element 44 is a simple straight and flat resilient metal rod with holes in one side to secure to the bottom part of the outer casing by screws. In the other end the metal rod is bent to some degree of inclination. The inclined portion is referred to as the biased element or tongue. The dimensions of the tongue are such that it enters the bottom side interior casing through rectangular window 46, to secure one end of the track as described above. The other end of the track is fixed by screws and discs to interior casing of the window bottom as shown in Fig. 3A. The surface area of screws 50 heads can be increased by adding disc 52 made of metal or plastic resin. In Fig. 3B one end side of the track 64 is shown. Arcuate notches 66 are made in the edge of the track surface, such that the screws can pass through the track and secure the track to the bottom interior casing of the window. Two flat vertical plates 68 flanking the track protect the track from slipping either side. The vertical plates also prevent penetration of natural elements (e.g. light, wind and water) between track bottom surface and interior bottom casing surface.
In another example as describe in Fig 3C, track 70 is employed in a sliding door context, in accordance with the present invention, two flanking vertical plates 72
are not elongated beyond the track bottom surface, however the track is fixed to a construction element (not shown in Fig. 3C) as described in the former example or by any other fastening method.
In some embodiments of the present invention a segment of a track shown in Fig. 4 is used. Track segment 80 is referred to hereinafter as a spacer. In both ends, arcuate notches 84 are made such that the screws can pass through the spacer and secure the spacer to the construction element. Typical use of the spacer is shown in Fig. 5 to which reference is now made. In this particular example spacer 80 is installed in the middle of the window's bottom interior casing. Tracks 90 are sufficiently short in order to enable the removal of the tracks when sliding the windows to either side. The spacer could be applicable similarly to sliding doors or any other panels. In some embodiments of the present invention a securing subsystem is used that keeps the panel in one end of the spacer or track thus preventing the panel from slipping from the track onto the smooth surface from which the respective track has already been removed.
The detachable tracks with or without spacers could be of use in other applications. For example, when the sliding door/window is very long, the tracks which are either disposed at the bottom or upper window/door casing can bend and damage as a result of the door/window pressure; therefore instead of fabricating a long track the track is partitioned to shorter tracks and are joined together by installing a spacer between each two short tracks. In another application, the system of the present invention can be used as a part of a folding door system. In such case, the door casing in which movable panels are placed facilitates folding up the panels sideways. When using such a door
system a spacer is joined with a track to the bottom door casing. The spacer is usually installed in either bottom door casing side; the dimensions of the spacer and tracks provide for removal of the tracks when the folding door is completely or partially opened. In another application the detachable tracks with or without spacers are used for vertical sliding windows i.e. the tracks and spacers are fastened to the interior casing sides, rather than to the top or bottom.
In some embodiments of the present invention, the interior side of the surface of the window bottom casing further includes a flat vertical plate flanking the surface disposed in an upright position. A schematic description of a sliding window with detachable track system in accordance with a preferred embodiment of the present invention is described in Fig. 6 to which reference is now made. Bottom casing 100 has a flat vertical plate 102 flanking the surface disposed in an upright position. Track component 104 is fitted into the window such that when removed, as indicated in the figure; smooth surface 105 of window bottom casing 100 shows up.
Referring now to Fig. 7, in which according to some preferred embodiments, track 104 consisting base plate 105 and two flat vertical plates 106, 107 extending therefrom and respectively flanking the track on both sides. These plates are intended to protect the track from slipping side-wise. Vertical plate 107 extends from base plate 105 upwards whereas vertical plate 106 extends from base plate 105 upwards and downwards. Vertical plate 106 also prevents penetration of environmental elements (e.g. light, wind and water) between the track's bottom surface and the surface of the interior bottom casing.
If water penetrates the track, one or more holes 108 of flat vertical plate 106 can deliver the penetrated water out side of the window system.
BENEFITS OF THE PRESENT INVENTION
The simple and quick detaching of a sliding window/door track can be
■ of assistance in maintaining the door/window system on a daily basis by conveniently removing them very easily from a construction element. When the rail track is removed a smooth surface is left at the construction element in which a smooth passage of wheel traffic is feasible. The implementation of the track system of the invention does not complicate design or the manufacturing of sliding windows/door system nor make it more costly.
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